Energy supply method, energy receiving method, optical module, communication device and system

Abstract

The embodiment of the invention provides an energy supply method, an energy receiving method, an optical module, a communication device and a system, and the method comprises the steps: a first communication system transmits first energy transmission light to a second communication system through an optical fiber, and the first energy transmission light is used for providing energy for the second communication system; the first communication system receives first signal light sent by the second communication system, and generation and sending of the first signal light are based on first energy transfer light; and in response to the first signal light, the first communication system sends second energy transfer light to the second communication system, and the power of the second energy transfer light is greater than that of the first energy transfer light. According to the energy supply method, the first communication system sends the energy transfer light to provide energy for the second communication system, so that the first communication system capable of performing optical communication can supply energy to the second communication system through the energy transfer light while performing optical communication with the second communication system. Communication and energy supply between the first communication system and the second communication system through optical fibers are facilitated, transmission medium normalization is achieved, and the purposes of reducing cost and facilitating installation are achieved.

Description

Technical Field

[0001] This application relates to the technical field of power supply, and particularly to an energy supply method, an energy receiving method, an optical module, a communication device and a system. Background Art

[0002] In the existing network, a power supply device and a power receiving device are usually connected by a network cable or a hybrid fiber-coaxial cable. The power supply device provides electrical energy for the power receiving device through the network cable or the hybrid fiber-coaxial cable. The power receiving device uses the electrical energy provided by the power supply device to communicate with the power supply device or other devices.

[0003] The technology of the power supply device providing electrical energy to the power receiving device through a network cable while communicating with the power receiving device is also called PoE. PoE realizes the transmission of signals and electrical energy through Ethernet twisted pairs (copper wires). With the improvement of the communication rate, higher-specification network cables are required, resulting in increased costs. And the transmission distance of electrical energy in PoE is limited. In addition, higher-specification network cables are thicker and heavier, increasing the installation difficulty. The hybrid fiber-coaxial cable combines optical fibers and copper wires. The optical fibers in the hybrid fiber-coaxial cable are used to transmit signals, and the copper wires in the hybrid fiber-coaxial cable are used to transmit electrical energy. There are still problems in the hybrid fiber-coaxial cable technology, such as the non-normalization of the transmission medium and the large weight of the cable. Summary of the Invention

[0004] In view of this, this application provides an energy supply method, an energy receiving method, an optical module, a communication device and a system, which is conducive to realizing the normalization of the transmission medium between communication systems that need to transmit electrical energy and can perform optical communication.

[0005] In a first aspect, an embodiment of the present application provides an energy supply method, including: a first communication system sends a first energy transmission light to a second communication system through an optical fiber, and the first energy transmission light is used to supply energy to the second communication system; the first communication system receives a first signal light sent by the second communication system, and the generation and transmission of the first signal light are based on the first energy transmission light; in response to the first signal light, the first communication system sends a second energy transmission light to the second communication system, and the power of the second energy transmission light is greater than the power of the first energy transmission light. Wherein, the first communication system includes a first communication device and a first optical module. The first communication device can directly send the first energy transmission light and the second energy transmission light to the second communication system through the optical fiber, or the first communication device can be a first optical module plugged into the first communication device, and the first energy transmission light and the second energy transmission light are sent to the second communication system through the optical fiber. In the second communication system, the second communication device can directly receive the first energy transmission light and the second energy transmission light through the optical fiber, or can be a second optical module plugged into the second communication device to receive the first energy transmission light and the second energy transmission light through the optical fiber. Similarly, the first communication device can directly receive the first signal light through the optical fiber, or the first signal light can be received by the first optical module through the optical fiber. This energy supply method provides energy for the second communication system by sending energy transmission light, enabling the first communication system and the second communication system capable of optical communication to supply energy through transmitted light while performing optical communication, which is beneficial for communication and energy supply between the first communication system and the second communication system through an optical fiber, realizing the normalization of the transmission medium, and achieving the purpose of reducing costs and facilitating installation. Moreover, the technical solution provided by the present application first transmits the first energy transmission light with a lower power, and then sends the second energy transmission light with a higher power after receiving the first signal light fed back by the energy receiving end, which is beneficial for improving the safety of energy supply.

[0006] In the case where the power of the second energy transmission light does not meet the power demand of the second communication system, the energy supply method may further include: sending an (i + 1)-th energy transmission light to the second communication system. Each time the (i + 1)-th energy transmission light is sent, the value of i is incremented by 1 until i = n, where i is a natural number greater than 1, and the power of the (n + 1)-th energy transmission light meets the power demand of the second communication system. As the value of i increases, the power of the (i + 1)-th energy transmission light increases in sequence. This method can further improve the safety of energy supply by increasing the power of the energy transmission light in a stepped manner. Wherein, the power demand of the second communication system includes the electric energy required by the second communication system when communicating with the first communication system.

[0007] This method of stepwise increasing the power of the energy transfer light can be such that the first communication system increases the power by the same amount each time according to a preset, or it can increase the power by different amounts each time. For example, it increases by m milliwatts for the first time and by m + 1 milliwatts for the second time (as long as it is higher than m milliwatts and lower than the power value when meeting the power demand of the second communication system), until it reaches the power value (assumed to be N milliwatts) that meets the power demand of the second communication system, and then maintains the energy transfer light with a transmission power of N milliwatts without further increase. The number of times the first communication system increases the power can be determined according to actual needs. For example, if higher security is required, the power value increased each time is reduced, and the number of times of increasing the power is correspondingly increased; if the energy supply speed needs to be increased, the power value increased each time can be increased, and the number of times of increasing the power is correspondingly reduced.

[0008] The above method of stepwise increasing the power of the energy transfer light can also be to increase the power of the energy transfer light at the request of the second communication system. For example, each time the first communication system increases the power of the energy transfer light, it responds to the second signal light sent by the second communication system. This second signal light is used to indicate an increase in the power of the energy transfer light. A possible way is that after the first communication system sends the second energy transfer light to the second communication system, it receives the second signal light sent by the second communication system m times, and the second signal light is used to indicate an increase in the power of the energy transfer light, where m = n - 1; sending the (i + 1)-th energy transfer light to the second communication system includes: in response to the second signal light received for the j-th time, sending the (i + 1)-th energy transfer light to the second communication system, where j = i - 1.

[0009] Whether the energy transfer light meets the power demand of the second communication system can be known by the first communication system according to the value stored locally or from the third signal light sent by the second communication system. This third signal light is used to indicate to the first communication system that the currently sent energy transfer light meets the power demand.

[0010] When the power of the energy transfer light emitted by the first communication system meets the power demand of the second communication system, it continuously sends the energy transfer light with this power to the second communication system.

[0011] The above first signal light can be a heartbeat signal, and the above energy supply method can further include: in the case of not receiving the first signal light within a preset duration, stopping the transmission of the energy transfer light to stop the energy supply in response to an abnormality of the second communication system or the optical fiber, further improving the energy supply security.

[0012] Optionally, the above energy supply method can further include: stopping the energy supply in response to the fourth signal light sent by the second communication system. This fourth signal is used to indicate stopping the transmission of the energy transfer light. This is another way to stop the energy supply in response to an abnormality of the second communication system or the optical fiber.

[0013] In a second aspect, correspondingly to the above method, an embodiment of the present application further provides a first communication system. The first communication system includes a first communication device and a first optical module. The first optical module is plugged into the first communication device, and the first communication device provides electrical energy for the first optical module. The first communication system can communicate with a second communication system through an optical fiber connected between the first communication device or the first optical module and the second communication system, and supply energy to the second communication system. In the first communication system, the components related to energy supply include a processor, an electro-optic converter (such as a laser, a laser diode (LD), a light-emitting diode (LED), etc.), a photo-electric converter (such as a photoelectric detector (PD) or a photo diode (PD), etc.), and an optical port. Among them, the processor is used to control the electro-optic converter to generate the energy-carrying light in the above method, the photo-electric converter is used to convert the signal light in the above method into an electrical signal that can be processed by the processor, and the optical port is used to connect the optical fiber to transmit the energy-carrying light and the signal light in the above method. These components can be flexibly configured into the first communication device and / or the first optical module according to actual needs. For example, the processor is disposed in the first communication device, and the first communication device further includes a memory for storing instructions. The processor reads and executes the instructions in the memory to cause the first communication device to perform operations: sending a first energy-carrying light to the second communication system through the optical fiber, where the first energy-carrying light is used to supply energy to the second communication system; and, in response to a first signal, sending a second energy-carrying light to the second communication system through the optical fiber; or, the processor and the electro-optic converter can be disposed in the first communication device, and the photo-electric converter and the optical port can be disposed in the first optical module; or, the processor and the photo-electric converter can be disposed in the first communication device, and the electro-optic converter and the optical port can be disposed in the first optical module; or, the processor, the electro-optic converter, the photo-electric converter, and the optical port are all disposed in the first communication device or the first optical module. It should be noted that when the processor is disposed in the first communication device or the first optical module, it means that the processor in the first communication device or the first optical module can be used not only for communication but also for controlling the electro-optic converter to generate the energy-carrying light and for responding to the signal carried by the signal light. When the photo-electric converter is disposed in the first optical module, the optical receiver or the optical transceiver in the first optical module can also be used as the photo-electric converter, or in other words, the function of the photo-electric converter is implemented by using the optical receiver or the optical transceiver in the first optical module. And, when the above optical port is disposed in the first optical module, it means that in addition to adding an optical port for transmitting the energy-carrying light, the optical port for optical communication in the first optical module can also be multiplexed for transmitting the energy-carrying light. The optical port for sending the energy-carrying light and receiving the signal light can be one, which is beneficial to further reducing the number of cables connecting the first communication system and the second communication system, thereby reducing the installation difficulty.Through mutual cooperation, the first communication device and the first optical module can implement the method described in any one of the above first aspects.

[0014] For example, the first communication device includes a processor and a memory. The memory contains instructions. The processor reads and executes the instructions, causing the first communication device to perform operations: sending a first energy transmission light to the second communication system through an optical fiber, where the first energy transmission light is used to provide energy to the second communication system; in response to a first signal, sending a second energy transmission light to the second communication system through the optical fiber, where the first signal is obtained from a first signal light received from the second communication system through the optical fiber, the generation and transmission of the first signal light are based on the first energy transmission light, and the power of the second energy transmission light is greater than that of the first energy transmission light.

[0015] In a first possible implementation, the first communication device is electrically connected to the first optical module. The first optical module is connected to the second communication system through an optical fiber. The first communication device further includes an electro-optical converter connected to the processor, and the optical output of the electro-optical converter is docked with the tail-end optical port of the first optical module; the processor is used to control the electro-optical converter to emit the first energy transmission light to the first optical module through the tail-end optical port; the processor is further used to, through electrical connection, in response to the first signal obtained from the first signal light received by the first optical module through the optical fiber, control the electro-optical converter to emit the second energy transmission light to the first optical module through the tail-end optical port; the first optical module sends the first energy transmission light and the second energy transmission light to the second communication system through the optical fiber.

[0016] In a second possible implementation, the first communication device is electrically connected to the first optical module. The first optical module is connected to the second communication system through an optical fiber. The first communication device further includes an electro-optical converter and an opto-electric converter; both the electro-optical converter and the opto-electric converter are connected to the processor, and the optical output of the electro-optical converter and the optical input of the opto-electric converter are respectively docked with the tail-end optical port of the first optical module; the processor is used to control the electro-optical converter to emit the first energy transmission light to the first optical module through the tail-end optical port; the opto-electric converter is used to obtain the first signal light received by the first optical module through the optical fiber through the tail-end optical port, convert the first signal light into a first signal, and send the first signal to the processor; the processor is further used to, in response to the first signal, control the electro-optical converter to send the second energy transmission light to the first optical module through the tail-end optical port; the first optical module sends the first energy transmission light and the second energy transmission light to the second communication system through the optical fiber.

[0017] In the above first possible implementation manner and the above second possible implementation manner, optionally, the processor is further configured to, after controlling the electro-optic converter to send the second energy transmission light to the first optical module, control the electro-optic converter to send the (i + 1)-th energy transmission light to the first optical module. Each time the (i + 1)-th energy transmission light is sent, the value of i is incremented by 1 until i = n, where i is a natural number greater than 1, and the power of the (n + 1)-th energy transmission light meets the power requirement of the second communication system. As the value of i increases, the power of the (i + 1)-th energy transmission light increases in sequence, and the first optical module sends the (i + 1)-th energy transmission light to the second communication system through the optical fiber.

[0018] In the above first possible implementation manner and the above second possible implementation manner, optionally, the processor is further configured to, after controlling the electro-optic converter to send the second energy transmission light to the first optical module, receive m second signals sent by the first optical module, and in response to the m second signals, control the electro-optic converter to send the (i + 1)-th energy transmission light to the first optical module, where the m second signals are obtained from m second signal lights received by the first optical module through the optical fiber. Among the m second signals, the j-th received second signal is obtained from the j-th second signal light among the m second signal lights, and the (i + 1)-th energy transmission light is obtained by the processor in response to the j-th received second signal, j = i - 1. The m second signal lights come from the second communication system and are used to indicate an increase in the power of the energy transmission light, and m = n - 1.

[0019] In the above first possible implementation manner, optionally, the processor is further configured to, after controlling the electro-optic converter to send the second energy transmission light to the first optical module, receive a third signal sent by the first optical module, and in response to the third signal, determine that the currently sent energy transmission light meets the power requirement of the second communication system, and control the electro-optic converter to continuously send the currently sent energy transmission light to the first optical module, where the third signal is obtained from a third signal light received by the first optical module through the optical fiber, and the third signal light comes from the second communication system and is used to indicate that the currently sent energy transmission light meets the power requirement.

[0020] In the above first possible implementation manner, optionally, the first signal is a heartbeat signal, and the processor is further configured to: in the case where the first signal is not received within a preset duration, control the electro-optic converter to stop sending energy transmission light to the second communication system.

[0021] In the above first possible implementation manner, optionally, the processor is further configured to, after controlling the electro-optical converter to emit the second energy transmission light to the first optical module, receive a fourth signal sent by the first optical module, and in response to the fourth signal, control the electro-optical converter to stop emitting energy transmission light to the first optical module, where the fourth signal is obtained from a fourth signal light received by the first optical module through the optical fiber, and the fourth signal light comes from the second communication system and is used to indicate to stop sending energy transmission light.

[0022] In the third possible implementation manner, the above first communication device is electrically connected to the above first optical module, the first optical module is connected to the second communication system through the optical fiber, the first communication device further includes an optoelectronic converter, the optoelectronic converter is connected to the processor, and the optical inlet of the optoelectronic converter is docked with the end optical port of the first optical module; the processor is configured to send a first control signal to the first optical module through the electrical connection, and the first control signal is used to instruct the first optical module to send the first energy transmission light to the second communication system through the optical fiber; the optoelectronic converter is configured to obtain the first signal light received by the first optical module through the optical fiber through the end optical port, convert the first signal light into the first signal, and send the first signal to the processor; the processor is further configured to, in response to the first signal, send a second control signal to the first optical module through the electrical connection, and the second control signal is used to instruct the first optical module to send the second energy transmission light to the second communication system through the optical fiber.

[0023] In the above third possible implementation manner, optionally, the processor is further configured to, after sending the second control signal to the first optical module, send n - 1 third control signals to the first optical module until the power of the energy transmission light sent by the first optical module meets the power demand of the second communication system, the third control signal is used to instruct the first optical module to increase the power of the energy transmission light, and under the control of the j-th third control signal among the n - 1 third control signals, the first optical module emits the (i + 1)-th energy transmission light, where i is a natural number greater than 1, j = i - 1, and n is equal to i.

[0024] In the above-mentioned third possible implementation manner, optionally, the optical-electric converter is further configured to convert the m times of second signal lights received by the first optical module through the optical fiber into m times of second signals after the processor sends a second control signal to the first optical module. The j-th second signal among the m times of second signals is converted from the j-th second signal light among the m times of second signal lights. The m times of second signal lights come from the second communication system and are used to indicate to increase the power of the energy-carrying light. The j-th third control signal among the n - 1 times of third control signals is obtained by the processor in response to the j-th second signal, and m = n - 1.

[0025] In the above-mentioned third possible implementation manner, optionally, the optical-electric converter is further configured to convert the third signal light received by the first optical module through the optical fiber into a third signal after the processor sends a second control signal to the first optical module. The third signal light comes from the second communication system and is used to indicate that the currently transmitted energy-carrying light meets the power demand of the second communication system.

[0026] The processor is further configured to determine that the currently transmitted energy-carrying light meets the power demand of the second communication system in response to the third signal, and send a fourth control signal to the first optical module. The fourth control signal is used to instruct the first optical module to continuously transmit the currently transmitted energy-carrying light to the second communication system through the optical fiber.

[0027] In the above-mentioned third possible implementation manner, optionally, the first signal is a heartbeat signal. The processor is further configured to send a fifth control signal to the first optical module when the first signal is not received within a preset time duration. The fifth control signal is used to instruct the first optical module to stop transmitting the energy-carrying light to the second communication system.

[0028] In the above-mentioned third possible implementation manner, optionally, the optical-electric converter is further configured to convert the fourth signal light received by the first optical module through the optical fiber into a fourth signal after the processor sends a second control signal to the first optical module. The fourth signal light comes from the second communication system and is used to indicate to stop transmitting the energy-carrying light.

[0029] The processor is further configured to send a fifth control signal to the first optical module in response to the fourth signal. The fifth control signal is used to instruct the first optical module to stop transmitting the energy-carrying light to the second communication system.

[0030] In the above second possible implementation manner, optionally, the optoelectronic converter is further configured to convert a third signal light received by the first optical module through the optical fiber into a third signal after the electro-optical converter emits a second energy transmission light to the first optical module. The third signal light comes from the second communication system and is used to indicate that the currently transmitted energy transmission light meets the power demand of the second communication system.

[0031] The processor is further configured to determine that the currently transmitted energy transmission light meets the power demand of the second communication system in response to the third signal, and control the electro-optical converter to continuously emit the currently transmitted energy transmission light to the first optical module. The first optical module continuously transmits the currently transmitted energy transmission light to the second communication system through the optical fiber.

[0032] In the above second possible implementation manner, optionally, the first signal is a heartbeat signal. The processor is further configured to control the electro-optical converter to stop emitting energy transmission light to the first optical module when the first signal is not received within a preset time period.

[0033] In the above second possible implementation manner, optionally, the optoelectronic converter is further configured to convert a fourth signal light received by the first optical module through the optical fiber into a fourth signal. The fourth signal light comes from the second communication system and is used to indicate to stop transmitting energy transmission light.

[0034] The processor is further configured to control the electro-optical converter to stop emitting energy transmission light to the first optical module in response to the fourth signal.

[0035] In the above second possible implementation manner, optionally, the first communication device further includes an optical circulator / optical multiplexer / demultiplexer. The optical output of the electro-optical converter and the optical input of the optoelectronic converter are docked to the first optical module through the optical circulator / optical multiplexer / demultiplexer.

[0036] In the fourth possible implementation manner, the above first communication device further includes an electro-optical converter, an optoelectronic converter, and an optical port for connecting an optical fiber. The processor is respectively connected to the electro-optical converter and the optoelectronic converter. The optical output of the electro-optical converter and the optical input of the optoelectronic converter are docked to the optical port. The optical fiber is connected to the second communication system. The processor is configured to control the electro-optical converter to emit a first energy transmission light to the optical port. The optical port is configured to transmit the first energy transmission light to the second communication system through the optical fiber, and receive a first signal light transmitted by the second communication system through the optical fiber. The optoelectronic converter is configured to receive and convert the first signal light into a first signal. The processor is further configured to control the electro-optical converter to emit a second energy transmission light to the optical port in response to the first signal. The optical port is further configured to transmit the second energy transmission light to the second communication system through the optical fiber.

[0037] In the above fourth possible implementation manner, optionally, the processor is further configured to, after controlling the electro-optical converter to emit the second energy transmission light to the optical port, control the electro-optical converter to emit the (i + 1)-th energy transmission light to the optical port. Each time the (i + 1)-th energy transmission light is sent, the value of i is incremented by 1 until i = n, where i is a natural number greater than 1. The power of the (n + 1)-th energy transmission light meets the power demand of the second communication system. As the value of i increases, the power of the (i + 1)-th energy transmission light increases sequentially;

[0038] The optical port is further configured to send the (i + 1)-th energy transmission light to the second communication system through the optical fiber.

[0039] In the above fourth possible implementation manner, optionally, the optical port is further configured to, after sending the second energy transmission light to the second communication system through the optical fiber, receive m second signal lights sent by the second communication system through the optical fiber. The second signal lights are used to indicate an increase in the power of the energy transmission light;

[0040] The photoelectric converter is further configured to convert the m second signal lights into m second signals;

[0041] The processor is further configured to, in response to the j-th second signal among the m second signals, control the electro-optical converter to emit the (i + 1)-th energy transmission light, where j = i - 1.

[0042] In the above fourth possible implementation manner, optionally, the optical port is further configured to, after sending the second energy transmission light to the second communication system through the optical fiber, receive a third signal light sent by the second communication system through the optical fiber. The third signal light is used to indicate that the currently sent energy transmission light meets the power demand of the second communication system;

[0043] The photoelectric converter is further configured to convert the third signal light into a third signal;

[0044] The processor is further configured to, in response to the third signal, determine that the currently sent energy transmission light meets the power demand of the second communication system, and control the electro-optical converter to continuously emit the currently sent energy transmission light to the optical port;

[0045] The optical port is further configured to continuously send the currently sent energy transmission light to the second communication system through the optical fiber.

[0046] In the above fourth possible implementation manner, optionally, the optical port is further configured to, after sending the second energy transmission light to the second communication system through the optical fiber, receive a fourth signal light sent by the second communication system through the optical fiber. The fourth signal light is used to indicate the stop of sending the energy transmission light;

[0047] The optical-electric converter is further configured to convert the fourth optical signal into a fourth signal;

[0048] The processor is further configured to, in response to the fourth signal, control the electro-optical converter to stop emitting the energy transmission optical signal to the optical port;

[0049] The optical port is further configured to, when the electro-optical converter stops emitting the energy transmission optical signal, stop sending the energy transmission optical signal to the second communication system.

[0050] In the fourth possible implementation manner described above, optionally, the optical port includes a first optical port and a second optical port, the optical fiber includes a first optical fiber and a second optical fiber, the optical output of the electro-optical converter is docked with the first optical port, the optical input of the optical-electric converter is docked with the second optical port, the first optical port is configured to send the energy transmission optical signal to the second communication system through the first optical fiber, and the second optical port is configured to receive the optical signal sent by the second communication system through the second optical fiber.

[0051] In the fourth possible implementation manner described above, optionally, the first communication device further includes an optical circulator / optical multiplexer / demultiplexer, and the optical output of the electro-optical converter and the optical input of the optical-electric converter are docked with the optical port through the optical circulator / optical multiplexer / demultiplexer.

[0052] For example, the first optical module includes a first optical port. The first optical port is configured to be connected to the second communication system through an optical fiber. The first optical port is further configured to send a first energy transmission optical signal to the second communication system through the optical fiber. The first energy transmission optical signal is used to provide energy for the second communication system, and receive a first optical signal sent by the second communication system through the optical fiber. The generation and transmission of the first optical signal are based on the first energy transmission optical signal. The first optical port is further configured to send a second energy transmission optical signal to the second communication system through the optical fiber. The generation of the second energy transmission optical signal is in response to the first optical signal, and the power of the second energy transmission optical signal is greater than that of the first energy transmission optical signal.

[0053] In the first possible implementation manner of the first optical module described above, the first optical module further includes a second optical port, an optical-electric converter, and an electrical interface. The electrical interface is configured to be electrically connected to the first communication device. The second optical port is configured to be docked with the first communication device. The optical input of the optical-electric converter is docked with the first optical port, and the output end is connected to the electrical interface. The first energy transmission optical signal and the second energy transmission optical signal can reach the first optical port through the second optical port. The optical-electric converter is configured to convert the first optical signal into a first signal, and send the first signal to the first communication device through the electrical interface.

[0054] In the first possible implementation manner of the above first optical module, optionally, the second optical port is further configured to receive the (i + 1)-th energy transmission light emitted by the first communication device after receiving the second energy transmission light emitted by the first communication device. Each time the (i + 1)-th energy transmission light is received, the value of i is incremented by 1 until i = n, where i is a natural number greater than 1. The power of the (n + 1)-th energy transmission light meets the power demand of the second communication system. As the value of i increases, the power of the (i + 1)-th energy transmission light increases in sequence, and the (i + 1)-th energy transmission light can reach the first optical port in sequence.

[0055] The first optical port is further configured to send the (i + 1)-th energy transmission light to the second communication system through the optical fiber.

[0056] In the first possible implementation manner of the above first optical module, optionally, the first optical port is further configured to receive m second signal lights sent by the second communication system through the optical fiber after sending the second energy transmission light to the second communication system through the optical fiber. The second signal light is used to indicate an increase in the power of the energy transmission light.

[0057] The photoelectric converter is further configured to convert the m second signal lights sent by the second communication system into m second signals, and send the m second signals to the first communication device through the electrical interface. Among the m second signals, the j-th second signal is obtained by converting the j-th second signal light among the m second signal lights. The (i + 1)-th energy transmission light is obtained by the first communication device in response to the j-th second signal, where j = i - 1 and m = n - 1.

[0058] In the first possible implementation manner of the above first optical module, optionally, the first optical port is further configured to receive a third signal light sent by the second communication system through the optical fiber after sending the second energy transmission light to the second communication system through the optical fiber. The third signal light is used to indicate that the currently transmitted energy transmission light meets the power demand.

[0059] The photoelectric converter is further configured to convert the third signal light into a third signal, and send the third signal to the first communication device through the electrical interface.

[0060] The second optical port is further configured to continuously receive energy transmission light when the first communication device continuously emits the currently transmitted energy transmission light to the first optical port in response to the third signal.

[0061] The first optical port is further configured to continuously send energy transmission light to the second communication system through the optical fiber when the second optical port continuously receives energy transmission light.

[0062] In the first possible implementation manner of the above first optical module, optionally, the first signal light is a heartbeat signal, and the second optical port is further configured to stop receiving the energy transmission light when the first communication device does not receive the first signal within a preset time period and stops emitting the energy transmission light;

[0063] The first optical port is further configured to stop sending the energy transmission light to the second communication system when the second optical port stops receiving the energy transmission light.

[0064] In the first possible implementation manner of the above first optical module, optionally, the first optical port is further configured to receive, through the optical fiber, a fourth signal light sent by the second communication system after sending the second energy transmission light to the second communication system through the optical fiber, where the fourth signal light is used to indicate to stop sending the energy transmission light;

[0065] The optical-electric converter is further configured to convert the fourth signal light into a fourth signal and send the fourth signal to the first communication device through the electrical interface.

[0066] The second optical port is further configured to stop receiving the energy transmission light when the first communication device stops emitting the energy transmission light in response to the fourth signal;

[0067] The first optical port is further configured to stop sending the energy transmission light to the second communication system when the second optical port stops receiving the energy transmission light.

[0068] In the first possible implementation manner of the above first optical module, optionally, the first optical module further includes an optical circulator / optical multiplexer / demultiplexer, and the optical input of the optical-electric converter and the second optical port are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer.

[0069] In the first possible implementation manner of the above first optical module, optionally, the optical port includes a first optical port including a first sub-optical port and a second sub-optical port, the optical fiber includes a first optical fiber and a second optical fiber, the first sub-optical port is used to connect to the second communication system through the first optical fiber, the second sub-optical port is used to connect to the second communication system through the second optical fiber, and the optical input of the optical-electric converter is docked with the second sub-optical port;

[0070] The first sub-optical port is used to send the energy transmission light to the second communication system through the first optical fiber, and the second sub-optical port is used to receive the signal light sent by the second communication system through the second optical fiber.

[0071] In the second possible implementation manner of the first optical module described above, the first optical module further includes an electrical interface, an electro-optical converter, and a second optical port. The electrical interface is connected to the input end of the electro-optical converter. The electrical interface is used to be electrically connected to the first communication device. The second optical port is used to dock with the first communication device. The first signal light can reach the first communication device through the second optical port. The electro-optical converter is used to receive a first control signal sent by the first communication device through the electrical interface, and in response to the first control signal, send a first energy transfer light to the first optical port. The first control signal is used to instruct the optical module to send the first energy transfer light to the second communication system. The electro-optical converter is further used to receive a second control signal sent by the first communication device through the electrical interface, and in response to the second control signal, send a second energy transfer light to the first optical port.

[0072] In the second possible implementation manner of the first optical module described above, optionally, the electro-optical converter is further used to, after sending the second energy transfer light to the first optical port, receive n - 1 third control signals sent by the first communication device through the electrical interface, and in response to the n - 1 third control signals, send n - 1 (i + 1)-th energy transfer lights to the first optical port. Each time an (i + 1)-th energy transfer light is sent, the value of i is incremented by 1 until i = n, where i is a natural number greater than 1. The power of the (n + 1)-th energy transfer light meets the electrical energy requirement of the second communication system. The (i + 1)-th energy transfer light is obtained based on the j-th third control signal among the n - 1 third control signals. The third control signal is used to instruct to increase the power of the energy transfer light. As the value of i increases, the power of the (i + 1)-th energy transfer light increases sequentially, and j = i - 1.

[0073] The first optical port is further used to send the n - 1 (i + 1)-th energy transfer lights to the second communication system through the optical fiber.

[0074] In the second possible implementation manner of the first optical module described above, optionally, the first optical port is further used to, after sending the second energy transfer light to the second communication system through the optical fiber, receive m second signal lights sent by the second communication system through the optical fiber. The second signal lights are used to instruct to increase the power of the energy transfer light. The m second signal lights can reach the second optical port.

[0075] The second optical port is further used to provide the m second signal lights for the first communication device. The j-th third control signal is obtained by the first communication device in response to the j-th second signal light among the m second signal lights.

[0076] In the second possible implementation manner of the above-mentioned first optical module, optionally, the first optical port is further configured to receive, through the optical fiber, a third optical signal sent by the second communication system after sending the second energy transmission optical signal to the second communication system through the optical fiber. The third optical signal is used to indicate that the currently transmitted energy transmission optical signal meets the power demand, and the third optical signal can reach the second optical port;

[0077] The second optical port is further configured to provide the third optical signal for the first communication device;

[0078] The electrical interface is further configured to receive a fourth control signal sent by the first communication device in response to the third optical signal. The fourth control signal is used to indicate continuous transmission of the currently transmitted energy transmission optical signal to the second communication system;

[0079] The electro-optical converter is further configured to continuously emit the currently transmitted energy transmission optical signal to the first optical port in response to the fourth control signal;

[0080] The first optical port is further configured to continuously send the currently transmitted energy transmission optical signal to the second communication system through the optical fiber.

[0081] In the second possible implementation manner of the above-mentioned first optical module, optionally, the first optical signal is a heartbeat signal. The electro-optical converter is further configured to receive, through the electrical interface, a fifth control signal sent by the first communication device, and in response to the fifth control signal, stop emitting the energy transmission optical signal to the first optical port. The fifth control signal is used to indicate stopping the transmission of the energy transmission optical signal to the second communication system, and the fifth control signal is obtained by the first communication device in response to not receiving the first optical signal within a preset duration;

[0082] The first optical port is further configured to stop sending the energy transmission optical signal to the second communication system when the electro-optical converter stops emitting the energy transmission optical signal.

[0083] In the second possible implementation manner of the above-mentioned first optical module, optionally, the first optical port is further configured to receive, through the optical fiber, a fourth optical signal sent by the second communication system after sending the second energy transmission optical signal to the second communication system through the optical fiber. The fourth optical signal is used to indicate stopping the transmission of the energy transmission optical signal, and the fourth optical signal can reach the second optical port;

[0084] The second optical port is further configured to provide the fourth optical signal for the first communication device;

[0085] The electro-optical converter is further configured to receive, through the electrical interface, a fifth control signal transmitted by the first communication device in response to the fourth optical signal, and in response to the fifth control signal, stop emitting the energy transmission light to the first optical port, where the fifth control signal is used to indicate stopping the emission of the energy transmission light to the second communication system;

[0086] The first optical port is further configured to stop transmitting the energy transmission light to the second communication system when the electro-optical converter stops emitting the energy transmission light.

[0087] In the second possible implementation manner of the above first optical module, optionally, the first optical port includes a first sub-optical port and a second sub-optical port, the optical fiber includes a first optical fiber and a second optical fiber, the first sub-optical port is configured to connect to the second communication system through the first optical fiber, the second sub-optical port is configured to connect to the second communication system through the second optical fiber, and the optical output of the electro-optical converter is docked with the first sub-optical port;

[0088] The first sub-optical port is configured to transmit the energy transmission light to the second communication system through the first optical fiber, the second sub-optical port is configured to connect to the signal light transmitted by the second communication system through the second optical fiber, and the signal light transmitted by the second communication system can reach the second optical port.

[0089] In the second possible implementation manner of the above first optical module, optionally, the first optical module further includes an optical circulator / optical multiplexer / demultiplexer, and the optical output of the electro-optical converter and the second optical port are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer.

[0090] In the third possible implementation manner of the above first optical module, the above first optical module further includes a second optical port docked with the above first communication device, and the first signal light can reach the second optical port through the first optical port; the second optical port is configured to receive the first energy transmission light and the second energy transmission light transmitted by the first communication device, and provide the first signal light to the first communication device, and the first energy transmission light and the second energy transmission light can reach the first optical port.

[0091] In the third possible implementation manner of the above first optical module, optionally, after receiving the second energy transmission light transmitted by the first communication device, the second optical port is further configured to receive the (i + 1)-th energy transmission light transmitted by the first communication device. Each time the (i + 1)-th energy transmission light is received, the value of i is incremented by 1 until i = n, where i is a natural number greater than 1, the power of the (n + 1)-th energy transmission light satisfies the electrical energy requirement of the second communication system, and as the value of i increases, the power of the (i + 1)-th energy transmission light increases in sequence, and the (i + 1)-th energy transmission light can reach the first optical port;

[0092] The first optical port is further configured to: send the (i + 1)-th energy-carrying light to the second communication system through the optical fiber.

[0093] In the third possible implementation manner of the above first optical module, optionally, after sending the second energy-carrying light to the second communication system through the optical fiber, the first optical port is further configured to receive m second signal lights sent by the second communication system through the optical fiber. The second signal lights are used to indicate increasing the power of the energy-carrying light. The (i + 1)-th energy-carrying light is obtained by the first communication device in response to the j-th second signal light among the m second signal lights, where j = i - 1 and m = n - 1.

[0094] In the third possible implementation manner of the above first optical module, optionally, after sending the second energy-carrying light to the second communication system through the optical fiber, the first optical port is further configured to receive a third signal light sent by the second communication system. The third signal light is used to indicate that the currently sent energy-carrying light meets the power demand of the second communication system, and the third signal light can reach the second optical port.

[0095] The second optical port is further configured to provide the third signal light for the first communication device, and, in the case where the first communication device continuously sends the currently sent energy-carrying light in response to the third signal light, receive the currently sent energy-carrying light, and the currently sent energy-carrying light can continuously reach the first optical port.

[0096] The first optical port is further configured to continuously send the currently sent energy-carrying light to the second communication system through the optical fiber.

[0097] In the third possible implementation manner of the above first optical module, optionally, the first signal light is a heartbeat signal. The second optical port is further configured to stop receiving the energy-carrying light when the first communication device stops emitting the energy-carrying light after not receiving the first signal light within a preset duration.

[0098] The first optical port is further configured to stop sending the energy-carrying light to the second communication system when the second optical port stops receiving the energy-carrying light.

[0099] In the third possible implementation manner of the above first optical module, optionally, after sending the second energy-carrying light to the second communication system through the optical fiber, the first optical port is further configured to receive a fourth signal light sent by the second communication system through the optical fiber. The fourth signal light is used to indicate stopping sending the energy-carrying light, and the fourth signal light can reach the second optical port.

[0100] The second optical port is further configured to stop receiving the energy-carrying light when the first communication device stops sending the energy-carrying light in response to the fourth signal light.

[0101] The first optical port is further configured to stop transmitting the energy-carrying light to the second communication system when the second optical port stops receiving the energy-carrying light.

[0102] In a third possible implementation manner of the first optical module, optionally, the first optical port includes a first sub-optical port and a second sub-optical port, the second optical port includes a third sub-optical port and a fourth sub-optical port, and the optical fiber includes a first optical fiber and a second optical fiber;

[0103] The energy-carrying light transmitted by the first communication device can reach the first sub-optical port through the third sub-optical port, and the first sub-optical port is configured to transmit the energy-carrying light to the second communication system through the first optical fiber;

[0104] The second sub-optical port is configured to receive the signal light transmitted by the second communication system through the second optical fiber, and the signal light transmitted by the second communication system can reach the fourth sub-optical port.

[0105] In a third possible implementation manner of the first optical module, optionally, the first optical module further includes an optical circulator / optical multiplexer / demultiplexer, the second optical port includes a third sub-optical port and a fourth sub-optical port, and the third sub-optical port and the fourth sub-optical port are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer;

[0106] The third sub-optical port is configured to receive the energy-carrying light from the first communication device, and the fourth sub-optical port is configured to provide the signal light for the first communication device.

[0107] In a fourth possible implementation manner of the first optical module, the first optical module further includes an electrical interface, a processor, an electro-optical converter, and an opto-electrical converter. The electrical interface is configured to be electrically connected to the first communication device. The processor is connected to the electro-optical converter and the opto-electrical converter. The optical output of the electro-optical converter and the optical input of the opto-electrical converter are docked with the first optical port. The processor, the electro-optical converter, and the opto-electrical converter are connected to the electrical interface. The processor, the electro-optical converter, and the opto-electrical converter obtain electrical energy from the first communication device through the electrical interface. The processor is configured to control the electro-optical converter to emit a first energy-carrying light to the first optical port based on the electrical energy obtained through the electrical interface. The opto-electrical converter is configured to convert the first signal light into a first signal based on the electrical energy obtained through the electrical interface. The processor is further configured to control the electro-optical converter to emit a second energy-carrying light to the first optical port based on the electrical energy in response to the first signal.

[0108] In the fourth possible implementation manner of the above first optical module, optionally, the processor is further configured to, after controlling the electro-optical converter to emit the second energy transmission light to the first optical port, control the electro-optical converter to emit the (i + 1)-th energy transmission light to the first optical port. Each time the (i + 1)-th energy transmission light is emitted, the value of i is incremented by 1 until i = n, where i is a natural number greater than 1, and the power of the (n + 1)-th energy transmission light meets the power demand of the second communication system. As the value of i increases, the power of the (i + 1)-th energy transmission light increases sequentially;

[0109] The first optical port is further configured to send the (i + 1)-th energy transmission light to the second communication system through the optical fiber.

[0110] In the fourth possible implementation manner of the above first optical module, optionally, the first optical port is further configured to, after sending the second energy transmission light to the second communication system through the optical fiber, receive m second signal lights sent by the second communication system through the optical fiber, and the second signal lights are used to indicate an increase in the power of the energy transmission light;

[0111] The photoelectric converter is further configured to convert the m second signal lights into m second signals: the j-th second signal among the m second signals is obtained by converting the j-th second signal light among the m second signal lights;

[0112] The processor is further configured to, in response to the j-th second signal, control the electro-optical converter to emit the (i + 1)-th energy transmission light to the first optical port, where j = i - 1 and m = n - 1.

[0113] In the fourth possible implementation manner of the above first optical module, optionally, the first optical port is further configured to, after sending the second energy transmission light to the second communication system through the optical fiber, receive a third signal light sent by the second communication system through the optical fiber, and the third signal light is used to indicate that the currently sent energy transmission light meets the power demand of the second communication system;

[0114] The photoelectric converter is further configured to convert the third signal light into a third signal based on the electric energy obtained through the electrical interface;

[0115] The processor is further configured to, based on the electric energy and in response to the third signal, determine that the currently sent energy transmission light meets the power demand of the second communication system, and control the electro-optical converter to continuously emit the currently sent energy transmission light to the first optical port;

[0116] The first optical port is further configured to continuously send the currently sent energy transmission light to the second communication system through the optical fiber.

[0117] In the fourth possible implementation manner of the above-mentioned first optical module, optionally, the first signal is a heartbeat signal, and the processor is further configured to control the electro-optical converter to stop emitting energy transmission light to the first optical port when the first signal is not received within a preset duration;

[0118] The first optical port is further configured to stop transmitting energy transmission light to the second communication system when the electro-optical converter stops emitting energy transmission light.

[0119] In the fourth possible implementation manner of the above-mentioned first optical module, optionally, the first optical port is further configured to receive, through the optical fiber, a fourth signal light sent by the second communication system after transmitting the second energy transmission light to the second communication system through the optical fiber, and the fourth signal light is used to indicate to stop transmitting energy transmission light;

[0120] The photoelectric converter is further configured to convert the fourth signal light into a fourth signal based on the electric energy;

[0121] The processor is further configured to control the electro-optical converter to stop emitting energy transmission light to the first optical port in response to the fourth signal based on the electric energy obtained through the electrical interface;

[0122] The first optical port is further configured to stop transmitting energy transmission light to the second communication system when the electro-optical converter stops emitting energy transmission light.

[0123] In the fourth possible implementation manner of the above-mentioned first optical module, optionally, the optical port includes a first optical port and a second optical port, the optical fiber includes a first optical fiber and a second optical fiber, the optical output of the electro-optical converter is docked with the first optical port, the optical input of the photoelectric converter is docked with the second optical port, the first optical port is configured to transmit energy transmission light to the second communication system through the first optical fiber, and the second optical port is configured to receive signal light sent by the second communication system through the second optical fiber.

[0124] In the fourth possible implementation manner of the above-mentioned first optical module, optionally, the first optical module further includes an optical circulator / optical multiplexer / demultiplexer, and the optical output of the electro-optical converter and the optical input of the photoelectric converter are docked with the optical port / optical multiplexer / demultiplexer through the optical circulator.

[0125] In the fourth possible implementation manner of the above-mentioned first optical module, optionally, the photoelectric converter is a photoreceiver or a photodetector.

[0126] Third aspect, corresponding to the first aspect, an energy receiving method provided by an embodiment of the present application includes: The second communication system receives the first energy transmission light sent by the first communication system through an optical fiber, and the first energy transmission light is used to provide energy to the second communication system; the second communication system generates first signal light based on the first energy transmission light, and sends the first signal light to the first communication system based on the first energy transmission light; receives the second energy transmission light sent by the first communication system in response to the first signal light, the power of the second energy transmission light is greater than that of the first energy transmission light, and the second communication system obtains energy through the second energy transmission light.

[0127] In the case where the power of the second energy transmission light does not meet the power demand of the second communication system, the above energy receiving method may further include receiving the (i + 1)-th energy transmission light sent by the first communication system. The (i + 1)-th energy transmission light is as described in the above first aspect. Each time the second communication system receives the (i + 1)-th energy transmission light, the value of i is incremented by 1 until i = n, and the power of the (n + 1)-th energy transmission light meets the power demand of the second communication device. As the value of i increases, the power of the (i + 1)-th energy transmission light increases in sequence, and the second communication system obtains energy from the (i + 1)-th energy transmission light. Optionally, the wavelength of the (i + 1)-th energy transmission light is the same as that of the first energy transmission light and the second energy transmission light. Optionally, according to the requirements of the actual situation, the wavelength of the (i + 1)-th energy transmission light is different from that of the first energy transmission light and the second energy transmission light. Another feasible way is that the second communication system monitors the power of the received energy transmission light in real time or regularly. In the case where the power of the energy transmission light does not meet the power demand of the second communication system, it sends a second signal light to the first communication system, so that each time the first communication system receives the second signal light, it increases the power of the energy transmission light once until after multiple power increases, the power of the energy transmission light meets the power demand. For example, the above (i + 1)-th energy transmission light is obtained by the first communication system in response to the second signal light.

[0128] In the case where the power of the energy transmission light sent by the first communication system meets the power demand of the second communication system, the energy receiving method may further include: sending a third signal light to the first communication system, which is used to indicate that the currently sent energy transmission light by the first communication system meets the power demand, so that the energy transmission light sent by the first communication system maintains the current power; then, the second communication system receives the currently sent energy transmission light continuously sent by the first communication system in response to the third signal light, and continuously obtains energy through the currently sent energy transmission light.

[0129] In the case of an optical fiber anomaly or an anomaly in the second communication system, for example, when the above-mentioned first signal light is a heartbeat signal, the energy receiving method may further include: stopping the transmission of the first signal light so that the first communication system stops supplying energy; then, when the second communication system stops receiving the energy transmission light in the case where the first communication system stops transmitting the energy transmission light in response to the second communication system stopping the transmission of the first signal light, the safety of energy supply is ensured. Another feasible way is that the second communication system sends a fourth signal to the first communication system to make the first communication system stop supplying energy; then, when the second communication system stops receiving the energy transmission light in the case where the first communication system stops transmitting the energy transmission light in response to the fourth signal light, the second communication system stops receiving the energy transmission light.

[0130] For the first signal light, second signal light, third signal light, and fourth signal light mentioned in this aspect, please refer to the description in the foregoing first aspect for details.

[0131] In a fourth aspect, corresponding to the method described in the above third aspect, an embodiment of the present application further provides a second communication system. This communication system includes a second communication device and a second optical module plugged into the second communication device. The second communication system can perform optical fiber communication by connecting an optical fiber between the second optical module and the first optical module of the first communication system; the second communication system can connect an optical fiber between the second communication device or the second optical module and the first communication device or the first optical module of the first communication system for energy reception. In this second communication system, the components related to energy reception include a processor, an optoelectronic converter (such as a photovoltaic PD, a photocell, etc.), a monitor (such as a monitoring PD (MPD), etc.), an electro-optical converter (such as a laser, an LD, an LED, a signal modulator, etc.), and an optical port. Among them, the optical port is used to connect the optical fiber and receive the energy transmission light sent by the first communication system through the optical fiber. The electro-optical converter is used to convert the energy transmission light into electrical energy to supply power to the communication system. The monitor is used to monitor the power of the energy transmission light and drive the electro-optical converter. The processor is used to generate an energy supply-related signal based on the electrical energy provided by the energy transmission light and according to the monitoring result of the monitor. The electro-optical converter is used to convert the signal into a signal light (such as the above-mentioned first signal light to fourth signal light) under the drive of the monitor. The optical port is also used to transmit the signal light.

[0132] These components can be flexibly configured into the second communication device and / or the second optical module according to actual needs. For example, the processor and the electro-optical converter can be arranged in the second communication device, and the optical-electric converter, the monitor, and the optical port can be arranged in the second optical module; for another example, the processor, the monitor, and the optical-electric converter can be arranged in the second communication device, and the electro-optical converter and the optical port can be arranged in the second optical module; for yet another example, the processor, the optical-electric converter, the monitor, the electro-optical converter, and the optical port are all arranged in the second communication system or the second optical module. It should be noted that when the processor is arranged in the second communication device or the second optical module, it means that the processor in the second communication device or the second optical module can be used not only for communication but also for sending energy-related signals according to the monitoring results. When the electro-optical converter is arranged in the second optical module, the optical transmitter or the optical transceiver in the second optical module can also be used as the electro-optical converter, or in other words, the function of the electro-optical converter can be realized by the optical transmitter or the optical transceiver in the second optical module. When the optical port is arranged in the second optical module, it means that in addition to increasing the optical port for transmitting the energy-carrying light, the optical port for optical communication in the second optical module can also be multiplexed for transmitting the energy-carrying light. The optical port for receiving the energy-carrying light and transmitting the signal light can be one, which is beneficial to further reducing the number of cables connecting the first communication system and the second communication system and reducing the installation difficulty. Through mutual cooperation, the above-mentioned second communication device and the second optical module can implement the method described in any one of the above third aspects.

[0133] For example, the second communication device may include a processor and a memory. The memory includes instructions. The processor reads and executes the instructions, enabling the second communication device to perform operations: receiving the first energy-carrying light sent by the first communication system through an optical fiber, and obtaining electric energy based on the first energy-carrying light. The first energy-carrying light is used to provide energy to the second communication device; based on the first energy-carrying light, sending a first signal, and sending a first signal light to the first communication system through an optical fiber, and receiving the second energy-carrying light sent by the first communication system through an optical fiber. The first signal light is obtained from the first signal, and the second energy-carrying light is obtained by the first communication system in response to the first signal light. The power of the second energy-carrying light is greater than the power of the first energy-carrying light.

[0134] In the first possible implementation manner of the second communication device described above, the second communication device is electrically connected to the second optical module. The second communication device further includes an optical-electric converter and a monitor. The optical-electric converter and the monitor are connected to the processor, and the optical inlet of the optical-electric converter is docked with the second optical module;

[0135] The optical-electric converter is configured to convert the first energy-carrying light and the second energy-carrying light received by the second optical module through an optical fiber into first electric energy and second electric energy respectively, and provide the first electric energy and the second electric energy to the processor;

[0136] The monitor is used to monitor the power of the first energy transmission light, send the monitoring result to the processor, and provide the current obtained through monitoring for the second optical module.

[0137] The processor is used to send a first signal to the second optical module through an electrical connection based on the first electrical energy and the monitoring result. After the first signal is converted into a first signal light by the second optical module, the first signal light is sent to the first communication system through an optical fiber.

[0138] In the second possible implementation manner of the second communication device, the second communication device is electrically connected to the second optical module. The second communication device further includes an optical-electric converter, a monitor, and an electro-optical converter. The processor is respectively connected to the optical-electric converter, the monitor, and the electro-optical converter. The monitor is connected to the processor and the electro-optical converter. The optical inlet of the optical-electric converter and the optical outlet of the electro-optical converter are docked with the second optical module.

[0139] The optical-electric converter is used to convert the first energy transmission light and the second energy transmission light received by the second optical module through the optical fiber into the first electrical energy and the second electrical energy respectively, and provide the first electrical energy and the second electrical energy to the processor.

[0140] The monitor is used to monitor the power of the first energy transmission light, send the monitoring result to the processor, and provide the current obtained through monitoring to the electro-optical converter.

[0141] The processor is used to send a first signal to the electro-optical converter based on the electrical energy and the monitoring result.

[0142] The electro-optical converter is used to convert the first signal into a first signal light under the drive of the current, and the first signal light is sent to the first communication system through the optical fiber by the second optical module.

[0143] In the first possible implementation manner and the second possible implementation manner of the second communication device, optionally, the optical-electric converter is further used to receive the (i + 1)-th energy transmission light received by the second optical module through the optical fiber after converting the second energy transmission light received by the second optical module through the optical fiber into the second electrical energy. Each time the (i + 1)-th energy transmission light is received, the value of i is incremented by 1 until i = n, and the power of the (n + 1)-th energy transmission light meets the electrical energy requirement of the second communication device. As the value of i increases, the power of the (i + 1)-th energy transmission light increases sequentially, and the (i + 1)-th energy transmission light is converted into the (i + 1)-th electrical energy and provided to the processor.

[0144] In the first possible implementation manner of the second communication device described above, optionally, the processor is further configured to, when the power of the energy transmission light sent by the first communication system does not meet the power demand of the second communication device, send a second signal to the second optical module through the electrical connection, where the second signal is used to instruct the first communication system to increase the power of the energy transmission light. After the second signal is converted into a second signal light by the second optical module, the second signal light is sent to the first communication system through the optical fiber, and the (i + 1)-th energy transmission light is obtained by the first communication system in response to the second signal light.

[0145] In the first possible implementation manner of the second communication device described above, optionally, the processor is further configured to, when the power of the energy transmission light sent by the first communication system meets the power demand of the second communication device, send a third signal to the second optical module through the electrical connection, where the third signal is used to instruct that the currently sent energy transmission light by the first communication system meets the power demand. The third signal is converted into a third signal light by the second optical module, and the second optical module sends the third signal light to the first communication system through the optical fiber.

[0146] The photoelectric converter is further configured to, when the first communication system continuously sends the currently sent energy transmission light in response to the third signal light, convert the currently sent energy transmission light received by the second optical module through the optical fiber into electrical energy and continuously provide it to the processor.

[0147] In the first possible implementation manner of the second communication device described above, optionally, the first signal is a heartbeat signal. The processor is further configured to stop sending the first signal to the second optical module when the optical fiber connected to the second optical module is abnormal or the second communication device is abnormal. When the processor stops sending the first signal, the second optical module stops sending the first signal light to the first communication system.

[0148] The photoelectric converter is further configured to stop providing electrical energy to the processor when the first communication system stops sending the energy transmission light to the second optical module in response to not receiving the first signal light.

[0149] In the first possible implementation manner of the second communication device, optionally, the processor is further configured to, when the optical fiber connected to the second optical module is abnormal or the second communication device is abnormal, send a fourth signal to the second optical module through the electrical connection, where the fourth signal is used to instruct the first communication system to stop sending energy-carrying light (such as the first energy-carrying light, the second energy-carrying light, or the (i + 1)-th energy-carrying light, etc.). After the fourth signal is converted into a fourth signal light by the second optical module, the second optical module sends the fourth signal light to the first communication system through the optical fiber;

[0150] The optoelectronic converter is further configured to stop providing electrical energy to the processor when the first communication system stops sending energy-carrying light to the second optical module in response to the fourth signal light.

[0151] In the second possible implementation manner of the second communication device, optionally, the processor is further configured to send a second signal to the electro-optical converter after the optoelectronic converter converts the second energy-carrying light into the second electrical energy, where the second signal is used to instruct the first communication system to increase the power of the energy-carrying light;

[0152] The electro-optical converter is further configured to convert the second signal into a second signal light and send the second signal light to the second optical module, and the second optical module sends the second signal light to the first communication system through the optical fiber, and the (i + 1)-th energy-carrying light is obtained by the first communication system in response to the second signal light.

[0153] In the second possible implementation manner of the second communication device, optionally, the processor is further configured to send a third signal to the electro-optical converter after the optoelectronic converter converts the second energy-carrying light into the second electrical energy, where the third signal is used to instruct that the currently sent energy-carrying light (such as the first energy-carrying light, the second energy-carrying light, or the (i + 1)-th energy-carrying light, etc.) of the first communication system meets the electrical energy requirement;

[0154] The electro-optical converter is further configured to convert the third signal into a third signal light and send the third signal light to the second optical module, and the second optical module sends the third signal light to the first communication system through the optical fiber;

[0155] The optoelectronic converter is further configured to convert the currently sent energy-carrying light continuously received by the second optical module through the optical fiber into electrical energy and continuously provide it to the processor when the first communication system continuously sends the currently sent energy-carrying light to the second optical module in response to the third signal light.

[0156] In the second possible implementation manner of the above-mentioned second communication device, optionally, the first signal is a heartbeat signal, and the processor is further configured to stop sending the first signal to the electro-optical converter when the optical fiber is abnormal or the second communication device is abnormal;

[0157] The electro-optical converter is further configured to stop sending the first signal light to the first communication system through the second optical module when the processor stops sending the first signal;

[0158] The photoelectric converter is further configured to stop providing electric energy for the processor when the first communication system stops sending energy transmission light (such as first energy transmission light, second energy transmission light, or (i + 1)-th energy transmission light, etc.) to the second optical module in response to not receiving the first signal light.

[0159] In the second possible implementation manner of the above-mentioned second communication device, optionally, the processor is further configured to send a fourth signal to the electro-optical converter when the optical fiber is abnormal or the second communication device is abnormal, and the fourth signal is used to instruct the first communication system to stop sending energy transmission light (such as first energy transmission light, second energy transmission light, or (i + 1)-th energy transmission light, etc.);

[0160] The electro-optical converter is further configured to convert the fourth signal into a fourth signal light and send the fourth signal light to the second optical module, and the second optical module sends the fourth signal light to the first communication system through the optical fiber;

[0161] The photoelectric converter is further configured to stop providing electric energy for the processor when the first communication system stops sending energy transmission light to the second optical module through the optical fiber in response to the fourth signal light.

[0162] In the second possible implementation manner of the above-mentioned second communication device, optionally, the second communication device further includes an optical circulator / optical multiplexer / demultiplexer. The optical input of the photoelectric converter receives the energy transmission light received by the second optical module through the optical fiber through the optical circulator / optical multiplexer / demultiplexer, and the optical output of the electro-optical converter sends signal light (such as first signal light, second signal light, third signal light, or fourth signal light, etc.) to the second optical module through the optical circulator / optical multiplexer / demultiplexer.

[0163] In the second possible implementation manner of the above-mentioned second communication device, optionally, the electro-optical converter is a laser diode; or

[0164] The second communication device further includes an optical splitter, and the electro-optical converter is a signal modulator. The optical inlet of the signal modulator and the optical inlet of the opto-electric converter are docked with the second optical module through the optical splitter. The optical splitter is configured to split a part of the energy transmission light (such as a part of the first energy transmission light, a part of the second energy transmission light, or a part of the (i + 1)-th energy transmission light) received from the second optical module through the optical fiber to the signal modulator. The signal modulator is configured to convert the signal sent by the processor into signal light by using the part of the energy transmission light split by the optical splitter. For example, the signal modulator uses this part of the energy transmission light to modulate the first signal into the first signal light, or modulate the second signal into the second signal light, or modulate the third signal into the third signal light, or modulate the fourth signal into the fourth signal light, etc.

[0165] In the third possible implementation manner of the second communication device described above, the second communication device is electrically connected to the second optical module. The second communication device further includes an electro-optical converter, and the processor is connected to the electro-optical converter. The optical outlet of the electro-optical converter is configured to dock with the second optical module.

[0166] The processor is configured to obtain the first electric energy, the second electric energy, and the first monitoring result from the second optical module through electrical connection, and based on the first electric energy and the monitoring result, send a first signal to the electro-optical converter. The first electric energy is obtained by the second optical module receiving the first energy transmission light sent by the first communication system through the optical fiber. The first monitoring result includes the power information of the first energy transmission light. The second electric energy is obtained by the second optical module receiving the second energy transmission light through the optical fiber.

[0167] The electro-optical converter is configured to convert the first signal into the first signal light under the drive of the first current provided by the second optical module through electrical connection, and the second optical module sends the first signal light to the first communication system through the optical fiber. The generation of the first current is based on the first energy transmission light by the second optical module.

[0168] In the third possible implementation manner of the second communication device described above, optionally, the processor is further configured to obtain the (i + 1)-th electric energy from the second optical module after obtaining the second electric energy from the second optical module. The (i + 1)-th electric energy is obtained by the second optical module receiving the (i + 1)-th energy transmission light sent by the first communication system through the optical fiber. Each time the (i + 1)-th energy transmission light is received, the value of i is incremented by 1 until i = n. The management of the (n + 1)-th energy transmission light meets the electric energy requirement of the second communication device. As the value of i increases, the power of the (i + 1)-th energy transmission light increases sequentially.

[0169] In the third possible implementation of the above second communication device, optionally, the processor is further configured to obtain a second monitoring result from the second optical module through the electrical connection, and send a second signal to the electro-optical converter according to the second monitoring result. The second monitoring result includes power information of the energy transmission light received by the second optical module after the first energy transmission light. The second signal is used to instruct the first communication system to increase the power of the energy transmission light;

[0170] The electro-optical converter is further configured to convert the second signal into a second signal light under the drive of a second current provided by the second optical module through the electrical connection, and send the second signal light to the second optical module. The second optical module sends the second signal light to the first communication system through the optical fiber. The generation of the second current is based on the energy transmission light received by the second optical module after the first energy transmission light. The (i + 1)-th energy transmission light is obtained by the first communication system in response to the second signal light.

[0171] In the third possible implementation of the above second communication device, optionally, after obtaining the second electric energy from the second optical module through the electrical connection, the processor is further configured to send a third signal to the electro-optical converter. The third signal is used to indicate that the currently transmitted energy transmission light of the first communication system meets the electric energy requirement;

[0172] The electro-optical converter is further configured to convert the third signal into a third signal light, and the second optical module sends the third signal light to the first communication system through the optical fiber;

[0173] The processor is further configured to continuously obtain electric energy from the second optical module when the first communication system continuously sends the currently transmitted energy transmission light to the second optical module in response to the third signal light through the optical fiber.

[0174] In the third possible implementation of the above second communication device, optionally, the first signal is a heartbeat signal. The processor is further configured to stop sending the first signal to the electro-optical converter when the optical fiber connected to the second optical module is abnormal or the second communication device is abnormal;

[0175] The electro-optical converter is further configured to stop sending the first signal light to the first communication system through the second optical module when the processor stops sending the first signal;

[0176] The processor is further configured to stop obtaining electric energy from the second optical module when the first communication system stops sending energy transmission light to the second optical module in response to not receiving the first signal light.

[0177] In the third possible implementation manner of the second communication device, optionally, the processor is further configured to, when the optical fiber connected to the second optical module is abnormal or the second communication device is abnormal, send a fourth signal to the electro-optical converter through the electrical connection, where the fourth signal is used to instruct the first communication system to stop sending energy-carrying light;

[0178] The electro-optical converter is further configured to convert the fourth signal into a fourth signal light and send the fourth signal light to the second optical module, and the second optical module sends the fourth signal light to the first communication system through the optical fiber;

[0179] The processor is further configured to stop obtaining electrical energy from the second optical module when the first communication system stops sending energy-carrying light in response to the fourth signal light.

[0180] In the third possible implementation manner of the second communication device, optionally, the electro-optical converter is a laser diode or a signal modulator, and the signal modulator is configured to obtain a part of the energy-carrying light (such as a part of the first energy-carrying light, a part of the second energy-carrying light, or a part of the (i + 1)-th energy-carrying light) sent by the first communication system from the optical module, and convert the signal sent by the processor into signal light by using the part of the energy-carrying light. For example, the signal modulator uses the part of the energy-carrying light to modulate the first signal into the first signal light, or modulate the second signal into the second signal light, or modulate the third signal into the third signal light, or modulate the fourth signal into the fourth signal light, etc.

[0181] In the fourth possible implementation manner of the second communication device, the second communication device further includes an optical port, an opto-electric converter, a monitor, and an electro-optical converter. The optical port docks with the optical inlet of the opto-electric converter. The output end of the opto-electric converter is connected to the processor. The monitor is connected to the processor and the electro-optical converter. The input end of the electro-optical converter is connected to the processor. The optical outlet of the electro-optical converter docks with the optical port, and the optical port is connected to the first communication system through the optical fiber;

[0182] The optical port is configured to receive the first energy-carrying light and the second energy-carrying light sent by the first communication system through the optical fiber;

[0183] The opto-electric converter is configured to convert the first energy-carrying light and the second energy-carrying light into first electrical energy and second electrical energy respectively, and provide the first electrical energy and the second electrical energy to the processor;

[0184] The monitor is configured to monitor the power of the first energy-carrying light, send the monitoring result to the processor, and provide the current obtained through monitoring to the electro-optical converter;

[0185] The processor is used to send a first signal to the electro-optical converter based on the first electric energy and the monitoring result, and the first signal is used to instruct the first communication system to send a second energy transmission optical signal;

[0186] The electro-optical converter is used to convert the first signal into a first signal optical signal under the drive of an electric current;

[0187] The optical port is further used to send the first signal optical signal to the first communication system through an optical fiber.

[0188] In the fourth possible implementation manner of the second communication device described above, optionally, the optical port is further used to receive the (i + 1)-th energy transmission optical signal sent by the first communication system through the optical fiber after receiving the second energy transmission optical signal through the optical fiber. Each time the (i + 1)-th energy transmission optical signal is received, the value of i is incremented by 1 until i = n, and the power of the (n + 1)-th energy transmission optical signal meets the electric energy requirement of the second communication device. As the value of i increases, the power of the (i + 1)-th energy transmission optical signal increases in sequence;

[0189] The opto-electric converter is further used to convert the (i + 1)-th energy transmission optical signal into the (i + 1)-th electric energy and provide the (i + 1)-th electric energy to the processor.

[0190] In the fourth possible implementation manner of the second communication device described above, optionally, the processor is further used to send a second signal to the electro-optical converter after the optical port receives the second energy transmission optical signal through the optical fiber, and the second signal is used to instruct the first communication system to increase the power of the energy transmission optical signal;

[0191] The electro-optical converter is further used to convert the second signal into a second signal optical signal;

[0192] The optical port is further used to send the second signal optical signal to the first communication system through the optical fiber, and the (i + 1)-th energy transmission optical signal is obtained by the first communication system in response to the second signal optical signal.

[0193] In the fourth possible implementation manner of the second communication device described above, optionally, the processor is further used to send a third signal to the electro-optical converter after the optical port receives the second energy transmission optical signal through the optical fiber, and the third signal is used to instruct that the currently transmitted energy transmission optical signal (such as the first energy transmission optical signal, the second energy transmission optical signal, or the (i + 1)-th energy transmission optical signal, etc.) sent by the first communication system meets the electric energy requirement;

[0194] The electro-optical converter is further used to convert the third signal into a third signal optical signal;

[0195] The optical port is further used to send the third signal optical signal to the first communication system through the optical fiber, and, in the case where the first communication system continuously sends the currently transmitted energy transmission optical signal in response to the third signal optical signal, continuously receive the energy transmission optical signal;

[0196] The photoelectric converter is further configured to convert the energy transmission light continuously received by the optical port into electrical energy and continuously supply it to the processor.

[0197] In the fourth possible implementation manner of the second communication device described above, optionally, the first signal is a heartbeat signal, and the processor is further configured to stop sending the first signal to the electro-optical converter in the case of an abnormality of the optical fiber or the second communication device;

[0198] The electro-optical converter is further configured to stop emitting the first signal light in the case where the processor stops emitting the first signal;

[0199] The optical port is further configured to stop sending the first signal light to the first communication system in the case where the electro-optical converter stops emitting the first signal light, and to stop receiving the energy transmission light in the case where the first communication system stops sending the energy transmission light (such as the first energy transmission light, the second energy transmission light, or the (i + 1)-th energy transmission light, etc.) in response to not receiving the first signal light;

[0200] The photoelectric converter is further configured to stop supplying electrical energy to the second communication device in the case where the optical port stops receiving the energy transmission light.

[0201] In the fourth possible implementation manner of the second communication device described above, optionally, the processor is further configured to send a fourth signal to the electro-optical converter through the electrical connection in the case of an abnormality of the optical fiber or the second communication device, and the fourth signal is used to instruct the first communication system to stop sending the energy transmission light (such as the first energy transmission light, the second energy transmission light, or the (i + 1)-th energy transmission light, etc.);

[0202] The electro-optical converter is further configured to convert the fourth signal into a fourth signal light;

[0203] The optical port is further configured to send the fourth signal light to the first communication system through the optical fiber, and to stop receiving the energy transmission light in the case where the first communication system stops sending the energy transmission light in response to the fourth signal light;

[0204] The photoelectric converter is further configured to stop supplying electrical energy to the second communication device in the case where the optical port stops receiving the energy transmission light.

[0205] In the fourth possible implementation manner of the second communication device described above, optionally, the second communication device further includes an optical circulator / optical multiplexer / demultiplexer, and the optical inlet of the photoelectric converter and the optical outlet of the electro-optical converter are docked with the optical port through the optical circulator / optical multiplexer / demultiplexer.

[0206] In the fourth possible implementation manner of the above-mentioned second communication device, optionally, the optical port includes a first optical port and a second optical port, the optical fiber includes a first optical fiber and a second optical fiber, the first optical port is docked with the optical inlet of the optoelectronic converter, and the second optical port is docked with the optical outlet of the electro-optical converter;

[0207] The first optical port receives energy-carrying light (such as the first energy-carrying light, the second energy-carrying light, or the (i + 1)-th energy-carrying light, etc.) sent by the first communication system through the first optical fiber, and the second optical port sends signal light (such as the first signal light, the second signal light, the third signal light, or the fourth signal light, etc.) to the first communication system through the second optical fiber.

[0208] In the fourth possible implementation manner of the above-mentioned second communication device, optionally, the electro-optical converter is a laser diode; or

[0209] The second communication device further includes a splitter, the electro-optical converter is a signal modulator, the optical outlet of the signal modulator and the optical inlet of the optoelectronic converter are docked with the optical port through the splitter, and the splitter is used to split off a part of the energy-carrying light received from the optical port to the signal modulator, and the signal modulator is used to convert the signal sent by the processor into signal light by using the part of the energy-carrying light.

[0210] For example, the above-mentioned second optical module includes a first optical port, and the first optical port is used to connect to the first communication system through an optical fiber;

[0211] The first optical port is further used to receive the first energy-carrying light sent by the first communication system through the optical fiber, the first energy-carrying light is used to provide energy for the second communication device, and to send the first signal light to the first communication system through the optical fiber, and to receive the second energy-carrying light sent by the first communication system through the optical fiber. The generation and transmission of the first signal light are based on the first energy-carrying light, the generation of the second energy-carrying light responds to the first signal light, and the power of the second energy-carrying light is greater than that of the first energy-carrying light.

[0212] In the first possible implementation manner of the above-mentioned second optical module, the second optical module further includes a second optical port, an electrical interface, and an electro-optical converter. The second optical port is used to dock with the second communication device, the electrical interface is used to be electrically connected to the second communication device, the input end of the electro-optical converter is connected to the electrical interface, and the optical outlet is docked with the first optical port;

[0213] The first energy-carrying light and the second energy-carrying light received by the first optical port can reach the second optical port, and the second optical port is used to provide the first energy-carrying light and the second energy-carrying light for the second communication device;

[0214] The electro-optical converter is configured to receive a first signal and a current transmitted by the second communication device through the electrical interface, and under the drive of the current, convert the first signal into the first signal light, and send the first signal light to the first communication system through the first optical port. The generation and transmission of the first signal and the current are based on the first energy transmission light.

[0215] In the second possible implementation manner of the above second optical module, the second optical module further includes a photoelectric converter, a monitor, an electrical interface, and a second optical port. The first optical port is docked with the optical inlet of the photoelectric converter. The output end of the photoelectric converter is connected to the electrical interface. The monitor is connected to the electrical interface. The electrical interface is used for electrical connection with the second communication device. The second optical port is used for docking with the second communication device.

[0216] The photoelectric converter is configured to convert the first energy transmission light and the second energy transmission light received by the first optical port through the optical fiber into a first electric energy and a second electric energy respectively, and provide the first electric energy and the second electric energy to the second communication device through the electrical interface.

[0217] The monitor is configured to monitor the power of the first energy transmission light, obtain a first monitoring result, and send the first monitoring result and the first current obtained during the monitoring process to the second communication device through the electrical interface. The first monitoring result includes the power information of the first energy transmission light.

[0218] The second optical port is configured to receive the first signal light transmitted by the second communication device. The generation and transmission of the first signal light are based on the first monitoring result, the first current, and the first electric energy. The first signal light can reach the first optical port.

[0219] In the third possible implementation manner of the above second optical module, the second optical module further includes a second optical port for docking with the second communication device.

[0220] The first energy transmission light and the second energy transmission light can reach the second optical port through the first optical port. The second optical port provides the first energy transmission light and the second energy transmission light to the second communication device.

[0221] The second optical port is further configured to receive the first signal light transmitted by the second communication device. The first signal light can reach the first optical port through the second optical port.

[0222] In the first possible implementation mode and the third possible implementation mode of the second optical module described above, optionally, the first optical port is further configured to receive the (i + 1)-th energy transmission light sent by the first communication system through the optical fiber after receiving the second energy transmission light through the optical fiber. Each time the (i + 1)-th energy transmission light is received, the value of i is incremented by 1 until i = n, where i is a natural number greater than 1. The power of the (n + 1)-th energy transmission light meets the power demand of the second communication device. As the value of i increases, the power of the (i + 1)-th energy transmission light increases in sequence;

[0223] The (i + 1)-th energy transmission light can reach the second optical port, and the second optical port is further configured to provide the (i + 1)-th energy transmission light for the second communication device.

[0224] In the first possible implementation mode of the second optical module described above, optionally, after the second optical port provides the second energy transmission light for the second communication device, the electro-optical converter is further configured to receive a second signal sent by the second communication device through the electrical interface and convert the second signal into a second signal light. The second signal is used to instruct the first communication system to increase the power of the energy transmission light;

[0225] The first optical port is further configured to send the second signal light to the first communication system through the optical fiber, and the (i + 1)-th energy transmission light is obtained by the first communication system in response to the second signal light.

[0226] In the first possible implementation mode of the second optical module described above, optionally, after the second optical port provides the second energy transmission light for the second communication device, the electro-optical converter is further configured to receive a third signal sent by the second communication device through the electrical interface and convert the third signal into a third signal light. The third signal is used to indicate that the currently transmitted energy transmission light (such as the first energy transmission light, the second energy transmission light, or the (i + 1)-th energy transmission light, etc.) sent by the first communication system meets the power demand;

[0227] The first optical port is further configured to send the third signal light to the first communication system through the optical fiber, and, when the first communication system continuously transmits the currently transmitted energy transmission light in response to the third signal light, continuously receive the currently transmitted energy transmission light through the optical fiber;

[0228] The currently transmitted energy transmission light continuously received by the first optical port can reach the second optical port, and the second optical port is further configured to continuously provide the currently transmitted energy transmission light for the second communication device.

[0229] In the first possible implementation manner of the second optical module described above, optionally, the first signal is a heartbeat signal, and the electro-optical converter is further configured to stop receiving the first signal through the electrical interface and stop providing the first signal light to the first optical port when the second communication device stops sending the first signal due to an anomaly;

[0230] The first optical port is further configured to stop sending the first signal light to the first communication system, and stop receiving the energy transmission light (such as the first energy transmission light, the second energy transmission light, or the (i + 1)-th energy transmission light, etc.) when the first communication system stops sending the energy transmission light in response to not receiving the first signal light;

[0231] The second optical port is further configured to stop providing the energy transmission light to the second communication device when the first optical port stops receiving the energy transmission light.

[0232] In the first possible implementation manner of the second optical module described above, optionally, the electro-optical converter is further configured to receive, through the electrical interface, a fourth signal sent by the second communication device based on an anomaly, where the fourth signal is used to instruct the first communication system to stop sending the energy transmission light, and convert the fourth signal into a fourth signal light;

[0233] The first optical port is further configured to send the fourth signal light to the first communication system through the optical fiber, and stop receiving the energy transmission light (such as the first energy transmission light, the second energy transmission light, or the (i + 1)-th energy transmission light, etc.) when the first communication system stops sending the energy transmission light in response to the fourth signal light;

[0234] The second optical port is further configured to stop providing the energy transmission light to the second communication device when the first optical port stops receiving the energy transmission light.

[0235] In the first possible implementation manner of the second optical module described above, optionally, the second optical module further includes an optical circulator / optical multiplexer / demultiplexer, and the second optical port and the optical output of the electro-optical converter are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer.

[0236] In the second possible implementation manner of the second optical module described above, optionally, the first optical port is further configured to receive the (i + 1)-th energy transmission light sequentially sent by the first communication system through the optical fiber after receiving the second energy transmission light sent by the first communication system through the optical fiber. Each time the (i + 1)-th energy transmission light is received, the value of i is incremented by 1 until i = n, where i is a natural number greater than 1, and the (n + 1)-th energy transmission light meets the power demand of the second communication device. As the value of i increases, the power of the (i + 1)-th energy transmission light increases sequentially;

[0237] The optical-electric converter is further configured to convert the (i + 1)-th energy transmission optical signal into the (i + 1)-th electric energy, and provide the (i + 1)-th electric energy to the second communication device through the electrical interface;

[0238] The monitor is further configured to monitor the power of the energy transmission optical signal received by the first optical port after the first energy transmission optical signal, obtain a second monitoring result, and send the second monitoring result and the second current obtained during the monitoring process to the second communication device through the electrical interface.

[0239] In the second possible implementation manner of the second optical module described above, optionally, after the optical-electric converter provides the second electric energy to the second communication device through the electrical interface, the second optical port is further configured to receive a second signal optical signal sent by the second communication device, where the second signal optical signal is used to instruct the first communication system to increase the power of the energy transmission optical signal, and the second signal optical signal can reach the first optical port;

[0240] The first optical port is further configured to send the second signal optical signal to the first communication system through the optical fiber, and the (i + 1)-th energy transmission optical signal is obtained by the first communication system in response to the second signal optical signal.

[0241] In the second possible implementation manner of the second optical module described above, optionally, after the optical-electric converter provides the second electric energy to the second communication device through the electrical interface, the second optical port is further configured to receive a third signal optical signal sent by the second communication device, where the third signal optical signal is used to indicate that the currently transmitted energy transmission optical signal of the first communication system meets the electric energy requirement, and the third signal optical signal can reach the first optical port;

[0242] The first optical port is further configured to send the third signal optical signal to the first communication system through the optical fiber, and, when the first communication system continuously transmits the currently transmitted energy transmission optical signal in response to the third signal optical signal, continuously receive the currently transmitted energy transmission optical signal through the optical fiber;

[0243] The optical-electric converter is further configured to continuously convert the currently transmitted energy transmission optical signal continuously received by the first optical port into electric energy, and continuously provide it to the second communication device through the electrical interface.

[0244] In the second possible implementation manner of the second optical module described above, optionally, the first signal is a heartbeat signal, and when the second communication device stops sending the first signal optical signal due to an exception, the second optical port is further configured to stop receiving the first signal optical signal;

[0245] The first optical port is further configured to stop transmitting the first signal light to the first communication system when the second optical port stops receiving the first signal light, and to stop receiving the energy transmission light when the first communication system stops transmitting the energy transmission light (such as the first energy transmission light, the second energy transmission light, or the (i + 1)-th energy transmission light, etc.) in response to not receiving the first signal light;

[0246] The optical - electric converter is further configured to stop providing electrical energy to the second communication device through the electrical interface when the first optical port stops receiving the energy transmission light.

[0247] In the second possible implementation manner of the second optical module described above, optionally, the second optical port is further configured to receive a fourth signal light abnormally transmitted by the second communication device, where the fourth signal light is used to instruct the first communication system to stop transmitting the energy transmission light (such as the first energy transmission light, the second energy transmission light, or the (i + 1)-th energy transmission light, etc.), and the fourth signal light can reach the first optical port;

[0248] The first optical port is further configured to transmit the fourth signal light to the first communication system through the optical fiber, and to stop receiving the energy transmission light when the first communication system stops transmitting the energy transmission light in response to the fourth signal light;

[0249] The optical - electric converter is further configured to stop providing electrical energy to the second communication device through the electrical interface when the first optical port stops receiving the energy transmission light. In the first possible implementation manner and the second possible implementation manner of the second optical module described above, optionally, the first optical port includes a first sub - optical port and a second sub - optical port, the optical fiber includes a first optical fiber and a second optical fiber, the first sub - optical port is used to connect to the first communication system through the first optical fiber, the second sub - optical port is used to connect to the first communication system through the second optical fiber, and the optical output of the electro - optical converter is docked with the second sub - optical port;

[0250] The first sub - optical port is used to receive the energy transmission light (such as the first energy transmission light, the second energy transmission light, or the (i + 1)-th energy transmission light, etc.) transmitted by the first communication system through the first optical fiber;

[0251] The second sub - optical port is used to transmit signal light (such as the first signal light, the second signal light, the third signal light, or the fourth signal light, etc.) to the first communication system through the second optical fiber.

[0252] In the first possible implementation manner of the second optical module described above, optionally, the electro - optical converter is a laser diode, an optical transmitter, or an optical transceiver; or

[0253] The second optical module further includes an optical splitter, and the electro-optical converter is a signal modulator. The optical input of the signal modulator and the second optical port are connected to the first optical port through the optical splitter. The optical splitter is configured to split a part of the energy-carrying light received from the first optical port and direct it to the signal modulator. The signal modulator is configured to convert the signal received through the electrical interface into optical signal based on the part of the energy-carrying light. For example, the signal modulator modulates the first signal onto the part of the energy-carrying light to obtain the first optical signal, modulates the second signal onto the part of the energy-carrying light to obtain the second optical signal, modulates the third signal onto the part of the energy-carrying light to obtain the third optical signal, modulates the fourth signal onto the part of the energy-carrying light to obtain the fourth optical signal, and so on.

[0254] In the second possible implementation manner of the second optical module described above, optionally, the second optical module further includes an optical circulator / optical multiplexer / demultiplexer. The optical input of the electro-optical converter and the second optical port are connected to the first optical port through the optical circulator / optical multiplexer / demultiplexer.

[0255] In the second possible implementation manner of the second optical module described above, optionally, the second optical module further includes an optical splitter and a fifth optical port. The optical input of the electro-optical converter and the fifth optical port are connected to the first optical port through the optical splitter;

[0256] The optical splitter is configured to split a part of the energy-carrying light received from the first optical port and direct it to the fifth optical port;

[0257] The fifth optical port is configured to provide the part of the energy-carrying light to the second communication device, and the second communication device can obtain an optical signal based on the part of the energy-carrying light. For example, the second communication device obtains the first optical signal, the second optical signal, the third optical signal, or the fourth optical signal, etc. through signal modulation.

[0258] In the third possible implementation manner of the second optical module described above, optionally, the second optical port is further configured to receive the second optical signal sent by the second communication device after the first optical port receives the second energy-carrying light sent by the first communication system through the optical fiber. The second optical signal is used to instruct the first communication system to increase the power of the energy-carrying light, and the second optical signal can reach the first optical port;

[0259] The first optical port is further configured to send the second optical signal to the first communication system through the optical fiber, and the (i + 1)-th energy-carrying light is obtained by the first communication system in response to the second optical signal.

[0260] In the third possible implementation manner of the above-mentioned second optical module, optionally, the second optical port is further configured to receive a third signal light sent by the second communication device after the first optical port receives the second energy transmission light sent by the first communication system through the optical fiber. The third signal light is used to indicate that the energy transmission light currently sent by the first communication system (such as the first energy transmission light, the second energy transmission light, or the (i + 1)-th energy transmission light, etc.) meets the power demand, and the third signal light can reach the first optical port.

[0261] The first optical port is further configured to send the third signal light to the first communication system through the optical fiber, and receive the currently sent energy transmission light continuously sent by the first communication system through the optical fiber. The currently sent energy transmission light continuously sent by the first communication system is in response to the third signal light.

[0262] In the third possible implementation manner of the above-mentioned second optical module, optionally, the first signal light is a heartbeat signal, and the second optical port is further configured to stop receiving the first signal light when the second communication device is abnormal and stops sending the first signal light.

[0263] The first optical port is further configured to stop sending the first signal light to the first communication system when the second optical port stops receiving the first signal light, and stop receiving the energy transmission light when the first communication system stops sending the energy transmission light (such as the first energy transmission light, the second energy transmission light, or the (i + 1)-th energy transmission light, etc.) in response to not receiving the first signal light.

[0264] The second optical port is further configured to stop providing the energy transmission light for the second communication device when the first optical port stops receiving the energy transmission light.

[0265] In the third possible implementation manner of the above-mentioned second optical module, optionally, the second optical port is further configured to receive a fourth signal light sent by the second communication device. The fourth signal light is used to indicate that the first communication system stops sending the energy transmission light, and the second signal light can reach the first optical port.

[0266] The first optical port is further configured to send the fourth signal light to the first communication system through the optical fiber, and stop receiving the energy transmission light when the first communication system stops sending the energy transmission light in response to the fourth signal light.

[0267] The second optical port is further configured to stop providing the energy transmission light for the second communication device when the first optical port stops receiving the energy transmission light.

[0268] In the third possible implementation manner of the second optical module described above, optionally, the first optical port includes a first sub-optical port and a second sub-optical port, the second optical port includes a third sub-optical port and a fourth sub-optical port, and the optical fiber includes a first optical fiber and a second optical fiber;

[0269] The first sub-optical port is used to receive the energy-carrying light of the first communication system through the first optical fiber, and the energy-carrying light can reach the third sub-optical port. The third sub-optical port is used to provide the energy-carrying light (such as the first energy-carrying light, the second energy-carrying light, or the (i + 1)-th energy-carrying light, etc.) sent by the first communication system to the second communication device;

[0270] The fourth sub-optical port is used to receive the signal light (such as the first signal light, the second signal light, the third signal light, or the fourth signal light, etc.) sent by the second communication device. The signal light sent by the communication device can reach the second sub-optical port, and the second sub-optical port is used to send the signal light to the first communication system through the second optical fiber.

[0271] In the third possible implementation manner of the second optical module described above, optionally, the second optical module further includes an optical circulator / optical multiplexer / demultiplexer. The second optical port includes a third sub-optical port and a fourth sub-optical port. The third sub-optical port and the fourth sub-optical port are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer;

[0272] The energy-carrying light sent by the first communication system can reach the third sub-optical port and can reach the second communication device through the third sub-optical port. The signal light sent by the second communication device can reach the first optical port through the fourth sub-optical port.

[0273] In the fourth possible implementation manner of the second optical module described above, the second optical module further includes a photoelectric converter, a monitor, a processor, an electrical interface, and an electro-optical converter. The first optical port is docked with the optical inlet of the photoelectric converter. The output end of the photoelectric converter is connected to the processor and the electrical interface. The input end of the electro-optical converter is connected to the processor. The optical outlet of the electro-optical converter is docked with the first optical port. The monitor is connected to the processor and the electro-optical converter. The electrical interface is used to be electrically connected to the second communication device;

[0274] The photoelectric converter is used to convert the first energy-carrying light and the second energy-carrying light into the first electric energy and the second electric energy respectively, provide the first electric energy and the second electric energy to the processor, and provide the first electric energy and the second electric energy to the second communication device through the electrical interface;

[0275] The monitor is used to monitor the power of the first energy-carrying light, send the monitoring result to the processor, and provide the current obtained through the monitoring to the electro-optical converter;

[0276] The processor is configured to send a first signal to the electro-optic converter based on the first electrical energy and the monitoring result, and the first signal is used to instruct the first communication system to send the second energy-carrying light;

[0277] The electro-optic converter is configured to convert the first signal into the first signal light under the drive of the current, and the first optical port is further configured to send the first signal light to the first communication system through the optical fiber.

[0278] In the fourth possible implementation manner of the second optical module described above, optionally, the first optical port is further configured to receive the (i + 1)-th energy-carrying light sent by the first communication system through the optical fiber after receiving the second energy-carrying light through the optical fiber. Each time the (i + 1)-th energy-carrying light is received, the value of i is incremented by 1 until i = n, where i is a natural number greater than 1. The power of the (n + 1)-th energy-carrying light meets the electrical energy requirement of the second communication device. As the value of i increases, the power of the (i + 1)-th energy-carrying light increases sequentially;

[0279] The photoelectric converter is further configured to convert the (i + 1)-th energy-carrying light into the (i + 1)-th electrical energy, provide the (i + 1)-th electrical energy to the processor, and provide the (i + 1)-th electrical energy to the second communication device through the electrical interface.

[0280] In the fourth possible implementation manner of the second optical module described above, optionally, the processor is further configured to send a second signal to the electro-optic converter after the first optical port receives the second energy-carrying light through the optical fiber, and the second signal is used to instruct the first communication system to increase the power of the energy-carrying light;

[0281] The electro-optic converter is further configured to convert the second signal into the second signal light and send the second signal light to the first optical port, and the first optical module is further configured to send the second signal light to the first communication system through the optical fiber; the (i + 1)-th energy-carrying light is obtained by the first communication system in response to the second signal light. Each time the second optical module sends the second signal light, the value of i is incremented by 1, and the power of the received (i + 1)-th energy-carrying light is higher than the power of the (i + 1)-th energy-carrying light before i is incremented by 1. For example, the (i + 1)-th energy-carrying light received by the second optical module (when i = a) does not meet the electrical energy requirement of the second communication system, and the second optical module sends the second signal light to the first communication system. The first communication system responds to the second signal light, increases the power of the energy-carrying light, and sends the (i + 1)-th energy-carrying light to the second optical module. At this time, i = a + 1, that is, the power of the (a + 2)-th energy-carrying light is greater than the power of the (a + 1)-th energy-carrying light.

[0282] In the fourth possible implementation manner of the above-mentioned second optical module, optionally, the processor is further configured to, after receiving the second energy transmission optical signal through the optical fiber at the first optical port, send a third signal to the electro-optical converter, where the third signal is used to indicate that the energy transmission optical signal currently sent by the first communication system meets the power demand;

[0283] The electro-optical converter is further configured to convert the third signal into a third signal optical signal and send the third signal optical signal to the first optical port;

[0284] The first optical port is further configured to send the third signal optical signal to the first communication system through the optical fiber, and, in the case that the first communication system continuously sends the currently sent energy transmission optical signal in response to the third signal optical signal, continuously receive the energy transmission optical signal;

[0285] The opto-electric converter is further configured to convert the energy transmission optical signal continuously received by the first optical port into electrical energy, continuously provide it to the processor, and continuously provide it to the second communication device through the electrical interface. For example, when the second energy transmission optical signal received by the second optical module meets the power demand of the second communication system, the second optical module sends a third signal optical signal to the first communication system. After receiving the third signal optical signal, the first communication system continues to send the second energy transmission optical signal to the second optical module; when the (n + 1)-th energy transmission optical signal received by the second optical module meets the power demand of the second communication system, the second optical module sends a third signal optical signal to the first communication system. After receiving the third signal optical signal, the first communication system continues to send the (n + 1)-th energy transmission optical signal to the second optical module.

[0286] In the fourth possible implementation manner of the above-mentioned second optical module, optionally, the first signal is a heartbeat signal, and the processor is further configured to stop sending the first signal to the electro-optical converter in the case of an abnormality of the optical fiber or the second communication device;

[0287] The electro-optical converter is further configured to stop sending the first signal optical signal in the case that the processor stops sending the first signal;

[0288] The first optical port is further configured to stop sending the first signal optical signal to the first communication system based on the electro-optical converter stopping sending the first signal optical signal, and, in the case that the first communication system stops sending the energy transmission optical signal in response to not receiving the first signal optical signal, stop receiving the energy transmission optical signal;

[0289] The opto-electric converter is further configured to stop providing electrical energy to the processor and the second communication device in the case that the first optical port stops receiving the energy transmission optical signal.

[0290] In the fourth possible implementation manner of the above second optical module, optionally, the processor is further configured to send a fourth signal to the electro-optical converter in the case of an abnormality of the optical fiber or the second communication device, and the fourth signal is used to instruct the first communication system to stop sending energy-carrying light;

[0291] The electro-optical converter is further configured to convert the fourth signal into a fourth signal light;

[0292] The first optical port is further configured to send the fourth signal light to the first communication system through the optical fiber, and, in the case that the first communication system stops sending energy-carrying light in response to the fourth signal light, stop receiving energy-carrying light;

[0293] The opto-electric converter is further configured to stop providing power to the processor and the second communication device in the case that the first optical port stops receiving energy-carrying light.

[0294] In the fourth possible implementation manner of the above second optical module, optionally, the second optical module further includes an optical circulator / optical splitter / combiner, and the optical inlet of the opto-electric converter and the optical outlet of the electro-optical converter are docked with the first optical port through the optical circulator / optical splitter / combiner.

[0295] In the fourth possible implementation manner of the above second optical module, optionally, the first optical port includes a first sub-optical port and a second sub-optical port, the optical fiber includes a first optical fiber and a second optical fiber, the first sub-optical port is docked with the optical inlet of the opto-electric converter, and the second sub-optical port is docked with the optical outlet of the electro-optical converter;

[0296] The first sub-optical port receives the energy-carrying light sent by the first communication system through the first optical fiber, and the second sub-optical port sends the signal light to the first communication system through the second optical fiber.

[0297] In the fourth possible implementation manner of the above second optical module, optionally, the electro-optical converter is a laser diode, an optical transmitter or an optical transceiver; or

[0298] The second optical module further includes a optical splitter, the electro-optical converter is a signal modulator, the optical outlet of the signal modulator and the optical inlet of the opto-electric converter are docked with the first optical port through the optical splitter, the optical splitter is configured to split a part of the energy-carrying light received from the first optical port to the signal modulator, and the signal modulator is configured to convert the signal sent by the processor into signal light by using the part of the energy-carrying light.

[0299] Fifth aspect, an embodiment of the present application provides an electronic device, including a memory for storing computer program instructions and a processor for executing the program instructions. When the computer program instructions are executed by the processor, the electronic device is triggered to execute the method according to any one of the first aspect and the third aspect.

[0300] Sixth aspect, an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium includes a stored program. When the program runs, it controls the device where the computer-readable storage medium is located to execute the method according to any one of the first aspect and the third aspect.

[0301] Seventh aspect, an embodiment of the present application provides a computer program product, the computer program product includes executable instructions. When the executable instructions are executed on a computer, the computer is enabled to execute the method according to any one of the first aspect and the third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0302] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0303] Figure 1 It is a schematic structural diagram of an embodiment of a first communication system provided by the present application;

[0304] Figure 2a It is a schematic structural diagram of an embodiment of a first communication device provided by the present application;

[0305] Figure 2b It is a schematic structural diagram of an embodiment of a first optical module provided by the present application;

[0306] Figure 2c It is a schematic structural diagram of another embodiment of a first optical module provided by the present application;

[0307] Figure 2d It is a schematic structural diagram of a third embodiment of a first optical module provided by the present application;

[0308] Figure 2e 、 Figure 2f 、 Figure 2g and Figure 2h It is a schematic structural diagram of another four embodiments of a first optical module provided by the present application;

[0309] Figure 3a It is a schematic structural diagram of a second embodiment of a first communication device provided by the present application;

[0310] Figure 3b Schematic diagram of the fourth embodiment of the first optical module provided by this application;

[0311] Figure 3c and Figure 3d Schematic diagrams of another two embodiments of the first optical module provided by this application;

[0312] Figure 4a Schematic diagram of the third embodiment of the first communication device provided by this application;

[0313] Figure 4b Schematic diagram of the fourth embodiment of the first communication device provided by this application;

[0314] Figure 4c Schematic diagram of the fifth embodiment of the first optical module provided by this application;

[0315] Figure 4d Schematic diagram of another embodiment of the first optical module provided by this application;

[0316] Figure 4e Schematic diagram of yet another embodiment of the first optical module provided by this application;

[0317] Figure 5a Schematic diagram of another embodiment of the first communication device provided by this application;

[0318] Figure 5b Schematic diagram of yet another embodiment of the first communication device provided by this application;

[0319] Figure 5c Schematic diagram of another embodiment of the first optical module provided by this application;

[0320] Figure 6a 、 Figure 6b 、 Figure 6c 、 Figure 6d and Figure 6e Schematic diagrams of another five embodiments of the first optical module provided by this application;

[0321] Figure 7a Schematic diagram of an embodiment of the second communication system provided by this application;

[0322] Figure 7b Schematic diagram of the first embodiment of the second communication device 500 provided by this application;

[0323] Figure 7c Schematic diagram of the first embodiment of the second optical module 600 provided by this application;

[0324] Figure 7d Schematic diagram of the second embodiment of the second optical module 600 provided by this application;

[0325] Figure 7e Schematic diagram of the third embodiment structure of the second optical module 600 provided for this application;

[0326] Figure 7f Schematic diagram of the fourth embodiment structure of the second optical module 600 provided for this application;

[0327] Figure 7g 、 Figure 7h 、 Figure 7i and Figure 7j Schematic diagrams of the structures of another four second optical module embodiments provided for this application;

[0328] Figure 8a Schematic diagram of the second embodiment structure of the second communication device 500 provided for this application;

[0329] Figure 8b Schematic diagram of the fifth embodiment structure of the second optical module 600 provided for this application;

[0330] Figure 8c Schematic diagram of the sixth embodiment structure of the second optical module 600 provided for this application;

[0331] Figure 8d Schematic diagram of the third embodiment structure of the second communication device 500 provided for this application;

[0332] Figure 8e Schematic diagram of the seventh embodiment structure of the second optical module 600 provided for this application;

[0333] Figure 8f Schematic diagram of the eighth embodiment structure of the second optical module 600 provided for this application;

[0334] Figure 9a Schematic diagram of the fourth embodiment structure of the second communication device 500 provided for this application;

[0335] Figure 9b Schematic diagram of the fifth embodiment structure of the second communication device 500 provided for this application;

[0336] Fig.9c Schematic diagram of the ninth embodiment structure of the second optical module 600 provided for this application;

[0337] Figure 9d Schematic diagram of the tenth embodiment structure of the second optical module 600 provided for this application;

[0338] Fig.9e Schematic diagram of the sixth embodiment structure of the second communication device 500 provided for this application;

[0339] Figure 9f Schematic diagram of the seventh embodiment of the second communication device 500 provided for this application;

[0340] Figure 9g Schematic diagram of the eleventh embodiment of the second optical module 600 provided for this application;

[0341] Figure 9h 、 Figure 9i 、 Figure 9j and Figure 9k Schematic diagrams of the eighth to eleventh embodiments of the second communication device 500 provided for this application respectively;

[0342] Fig.10a 、 Fig.10b 、 Fig.10c and Fig.10d Schematic diagrams of the twelfth to fifteenth embodiments of the second optical module 600 provided for this application respectively;

[0343] Fig.10e Schematic diagram of another embodiment of the second optical module provided for this application;

[0344] Fig.10f Schematic diagram of yet another embodiment of the second optical module provided for this application;

[0345] Figure 10g and Figure 10h Schematic diagrams of another two embodiments of the second optical module provided for this application;

[0346] Fig.11a 、 Fig.11b and Fig.11c Three schematic diagrams of transmitting energy light and signal light between two communication systems for energy supply and energy reception through a single optical fiber provided for the embodiments of this application;

[0347] Fig.11d 、 Fig.11e 、 Fig.11f and Figure 11g Four schematic diagrams of transmitting energy light and signal light between two communication systems for energy supply and energy reception through different optical fibers provided for the embodiments of this application;

[0348] Fig.12a 、 Figure 12b 、 Fig.12c and Fig.12d Four schematic diagrams of application scenarios provided for the embodiments of this application;

[0349] Fig.13a Flowchart of an embodiment of an energy supply method provided for this application;

[0350] Fig.13b Flowchart of another embodiment of an energy supply method provided for this application;

[0351] Fig.13c Flow chart of another energy supply method embodiment provided for this application;

[0352] Fig.13d Flow chart of yet another energy supply method embodiment provided for this application. Detailed implementation manners

[0353] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0354] An embodiment of a first communication system provided by this application, in addition to having the function of optical fiber communication, for example, in a network that uses a hybrid optical and electrical cable for networking (such as a 5G indoor small base station using a hybrid optical and electrical cable for networking, a campus network with an asteroid architecture, and a distributed WiFi based on radio over fiber (ROF), etc.), it has the optical communication function of the first communication system for power supply, and in addition, it also has the function of supplying energy through optical fiber.

[0355] As Figure 1 shown, the first communication system 100 includes: a first communication device 200 and a first optical module 300 plugged into the first communication device 200. The first communication device 200 can have the function of the first communication device (such as an access switch, Hub, RHUB, etc.) in the above-mentioned first communication system for power supply to communicate through the first optical module, and can also be used for supplying energy through optical fiber.

[0356] An embodiment of the first communication device 200 is as Figure 2aAs shown in the figure, the first communication device 210 includes a main board 211, a processor 212, a memory 213, a storage 214, a power module 215, a heat dissipation module 216, a network interface 217, and an energy supply LD 218. The processor 212, the memory 213, and the storage 214 are located on the main board 211. Together with the main board 211, they serve as the main control board to control the operation and data processing of the first communication device 210. During the communication between the first communication device 210 and the second communication system, the processor 212 may also have functions such as packet processing (such as parsing, processing, and forwarding packets, and sending packets to corresponding ports according to the source IP address and the destination IP address), line control (such as managing the opening and closing of the lines of the ports, bandwidth control, etc.), quality of service control (such as controlling the transmission priority of packets), network protocol processing (such as implementing network protocols such as TCP / IP, HTTP, etc.), system management (such as system configuration, system logs, system fault detection and diagnosis, etc.). The processor 212 may include one or more processors. For example, the processor 212 may include a central processing unit (CPU) and a network processor (NP). The central processing unit can be used for system management and control, and the network processor can be used for packet storage, forwarding, and filtering. The processor 212 may also include processors such as a security processor and a storage processor for processing specific tasks.

[0357] The memory 213 is used to store the operating programs and data of the first communication device 210, such as switch software, routing tables, etc. The storage 214 can be a hard disk, a flash memory, etc., and is used to store the configuration files and log information of the first communication device 210. The power module 215 is used to convert the power into the voltage and current required by each part of the first communication device 210 to ensure the normal operation of the first communication device 210. The heat dissipation module 216 may include a fan, a heat sink, etc. The network interface 217 is used to provide a physical interface to connect the first optical module, etc. The energy supply LD 218 is the aforementioned electro-optical converter, and can also be replaced by a laser, an LD, an LED, etc. The energy supply LD 218 is used to convert the electrical signal into an energy transmission light (C, such as the aforementioned first energy transmission light, the aforementioned second energy transmission light, or the aforementioned n types of energy transmission lights, etc.) to supply energy through an optical fiber. After obtaining power through the power module 215, the main control board can control the operation of the heat dissipation module 216 to dissipate heat, prevent the first communication device 210 from overheating, and control the first optical module through the network interface 217 to perform optical communication with other first communication devices through the first optical module. The processor 212 can also provide current for the energy supply LD 218 to generate the energy transmission light. The processor 212 can also control the energy supply LD 218 to generate high-power or low-power energy transmission light by increasing or decreasing the current. Therefore, in this application, the current provided by the processor 212 for the energy supply LD can also be regarded as a control signal to control the switch of the energy supply LD and the power of the energy transmission light.

[0358] In addition, the first communication device 200 may further include a circuit board, a network management module, etc. This is only an example for illustration, not a limitation. The modules, devices, circuit boards, etc. inside the first communication device 200 may be increased or decreased according to actual needs.

[0359] Correspondingly, an embodiment of the first optical module 300 is as Figure 2b shown. The first optical module 310 includes a processor 311, an optical transmitter, an optical receiver, a third optical port 3121, a fourth optical port 3122, a first optical port 314, an optical channel 315, a second optical port 316, an electrical interface 317, and a signal PD 318. The third optical port 3121, the fourth optical port 3122, and the first optical port 314 are located at the front end of the first optical module 310 (the end connected to the second communication system), and can be connected to the second communication system (the energy-receiving communication system) through an optical fiber 313. The third optical port 3121, the fourth optical port 3122, and the first optical port 314 may include sockets and optical connectors located inside the sockets. The plug of the connected optical fiber 313 can be inserted into the socket, so that the optical connector receives the optical signal transmitted by the optical fiber (for example, the optical connector in the fourth optical port 3122 receives the communication optical signal B transmitted by the optical fiber, and the optical connector in the first optical port 314 receives the signal optical signal (such as the first signal optical signal, the second signal optical signal, the third signal optical signal, or the fourth signal optical signal, etc.) transmitted by the optical fiber), or sends an optical signal to the optical fiber 313 (for example, the optical connector in the third optical port 3121 sends the communication optical signal A to the optical fiber 313, and the optical connector in the first optical port 314 sends the first energy transmission optical signal and the second energy transmission optical signal to the optical fiber 313). The processor 311, the optical transmitter, the optical receiver, and the signal PD 318 are located inside the first optical module. The optical transmitter can be used to convert the communication signal (electrical signal, referred to as signal a for ease of description) to be transmitted by the first communication device plugged into the first optical module 310 into a communication signal optical signal (referred to as signal optical signal A for ease of description), and send it to the second communication system through the third optical port 3121 and the connected optical fiber. The optical transmitter may include electro-optical converters such as lasers, laser diodes, or light-emitting diodes, and may also include a driving circuit to drive the electro-optical converter to emit light that meets the requirements. The optical receiver is used to receive the communication signal optical signal (referred to as signal optical signal B for ease of description) sent by the second communication system through the fourth optical port 3122, and convert the signal optical signal B into a communication signal (electrical signal, referred to as signal b for ease of description). The optical receiver may include optical elements (such as optical connectors) and photodetectors (PD), etc. Among them, the optical connector may be a lens, etc., and the photodetector may be a positive and negative diode (PIN), an avalanche photodiode, etc.

[0360] The electrical interface 317 is used to connect to the first communication device 210. For example, the electrical interface 317 can be a gold finger and is inserted into the network interface of the first communication device 210. The second optical port 316 is located at the tail end of the first optical module 310 (the end connected to the first communication device). Optionally, the second optical port 316 is a via hole, which is used to allow the energy transmission light (C) emitted by the first communication device 210 to enter the optical channel 315. Optionally, the optical channel 315 can be similar to a hollow straight tube, and the energy transmission light (C) can reach the first optical port 314 through the optical channel 315. Alternatively, optionally, the second optical port 316 and the first optical port 314 include inner sockets, which are located on the inner wall of the first optical module. The first optical module also includes an optical fiber (referred to as an inner optical fiber for easy description). The two ends of the inner optical fiber are respectively plugged into the inner sockets of the second optical port 316 and the first optical port 314. In this way, the energy transmission light emitted by the first communication device enters the inner optical fiber through the second optical port 316, is transmitted to the first optical port 314 through the inner optical fiber, then enters the optical fiber 313 through the first optical port, and is transmitted to the second communication system by the optical fiber 313. The first optical port 314 may not include an optical connector, that is, the inner optical fiber and the optical fiber 313 are seamlessly connected within the first optical port 314. The following involves the optical port structure at the tail end of the optical module, which is similar to the second optical port 316, and the first optical port structure at the front end of the optical module is similar to the first optical port 314. After that, the energy transmission light is transmitted from the first optical port 314 to the second communication system through the optical fiber 313 to supply energy to it.

[0361] The processor 311 can be used to control the optical transmitter and the optical receiver. For example, it can control parameters such as the laser switch, current, and voltage in the optical transmitter. For another example, it can monitor parameters such as the received optical power and temperature of the optical receiver. In addition, the processor 311 can also have data processing functions, such as encoding, decoding, error detection, and correction of the data sent and received by the first optical module. Additionally, the processor 311 can also be used to control the first optical module, such as controlling the communication process of the first optical module, such as establishing connections, data transmission, port connections, etc., and managing the power supply of the first optical module, such as switching the power supply, modulating the voltage or current, etc. The first optical module 310 will interact with the first communication device 210 through the electrical interface 317 for signals a and b.

[0362] The above-mentioned second communication system is based on the received energy-transmitting optical signal C to feedback the signal optical signal D / C(d) / B(d) (such as the aforementioned first signal optical signal, the aforementioned second signal optical signal, the aforementioned third signal optical signal, and the aforementioned fourth signal optical signal, etc.), so that the first communication system that supplies energy can obtain relevant information about energy supply, such as whether to continue energy supply, whether the energy supply meets the demand, whether to stop energy supply, etc. Among them, D / C(d) / B(d) are signal optical signals with different wavelengths, d represents the signal carried by the signal optical signal D / C(d) / B(d) (see the first signal, the second signal, the third signal, or the fourth signal, etc. in the following text), C(d) represents the multiplexed energy-transmitting optical signal, carrying the signal d on the energy-transmitting optical signal, and B(d) represents the multiplexed communication optical signal B, carrying the signal d on the communication optical signal B. D represents using the optical wave D different from C and B to carry the signal d. The first optical port 314 can also be used to receive the signal optical signal D / C(d) / B(d) from the second communication system through an optical fiber. The signal PD 318 is the aforementioned optical-electric converter, which is used to convert the signal optical signal D into the signal d (electrical signal) and send it to the connected first communication device 210 through the electrical interface 317. Here, the wavelength of the signal optical signal D can be different from the wavelength of the energy-transmitting optical signal C.

[0363] The first optical module 300 is not limited to Figure 2b the content of the illustrated embodiment. It can also be that an optical transceiver (Bi-Directional Optical Sub-Assembly, BOSA) is used to replace the above-mentioned optical receiver and optical transmitter. Correspondingly, the third optical port 3121 and the fourth optical port 3122 can be one optical port, and only one optical fiber 313 may be required for communication with the second communication system. The components, circuits, functional modules, interfaces, etc. in the first optical module 300 can be increased or decreased according to actual needs, and are not limited here.

[0364] Another embodiment of the first optical module 300 is as Figure 2c shown. The difference between the first optical module 320 and the first optical module 310 is that it further includes an optical circulator 319. One end of the optical channel 315 close to the first optical port 314 and the signal PD 318 are docked with the first optical port through the optical circulator 319. The optical circulator 319 can include at least three ports, namely port 1, port 2, and port 3. One end of the optical channel 315 close to the first optical port 314 is docked with port 1. After the energy-transmitting optical signal C enters port 1, it is guided to port 2. Port 2 is docked with the first optical port 314. The energy-transmitting optical signal C emitted from port 2 enters the first optical port 314, and then can be transmitted to the remote first communication system through the optical fiber connected to the first optical port 314. After the signal optical signal D / C(d) / B(d) enters port 2 through the first optical port 314, it is guided to port 3 for output. The signal PD 318 is docked with port 3. The signal optical signal D / C(d) / B(d) enters the signal PD 318 from port 3 and is converted into the signal d. When the signal optical signal is D / B(d), an optical multiplexer / demultiplexer can be used to replace the optical circulator 319.

[0365] In some other embodiments of the first optical module 300, the optical circulator can also be replaced by an optical splitter.

[0366] The third embodiment of the first optical module 300 is as Figure 2d shown. The difference between the first optical module 330 and the first optical module 310 is that the first optical port 314 includes a first sub-optical port 3141 and a second sub-optical port 3142. The first sub-optical port 3141 is docked to one end of the optical channel 315 close to the first optical port, and the second sub-optical port 3142 is docked to the optical inlet of the signal PD 318. The first sub-optical port 3141 and the second sub-optical port 3142 can each be connected to the remote first communication system through an optical fiber. The energy transmission light C reaches the remote first communication system through the first sub-optical port 3141 and the connected optical fiber, and the signal light D / C(d) / B(d) reaches the signal PD 318 through the second sub-optical port 3142. The first sub-optical port 3141 and the second sub-optical port 3142 are similar in structure or shape to the first optical port, and the difference is that the transmitted light is different.

[0367] Another feasible way is, as Figure 2e shown, the function of the second sub-optical port 3142 is realized by the fourth optical port 3122, or, as Figure 2f shown, is realized by a third optical port 3121 that can transmit and receive communication light (corresponding to BOSA). In these cases, the second sub-optical port 3142 can be omitted. And the function of the signal PD 318 can also be realized by an optical receiver (as Figure 2e and Figure 2g shown) or BOSA (as Figure 2f and Figure 2h shown). In this case, the signal PD 318 can also be omitted. Another feasible way is to omit the first optical port 314, and the energy transmission light is sent by the third optical port 3121 in Figure 2f . In this case, the first optical module 332 can further add an optical circulator to guide the energy transmission light entering from the second optical port 316 to the third optical port 3121, so that the energy transmission light, the signal light D / C(d) / B(d), and the communication signal lights A and B are transmitted through an optical fiber 313. Or, as Figure 2g shown, compared with the first optical module 331, the first optical module 333 adds an optical circulator 3191 and omits the third optical port 3121 and the fourth optical port 3122. As Figure 2hAs shown, compared with the first optical module 332, the first optical module 334 adds an optical circulator 319 and eliminates the third optical port 3121. Among them, compared with the optical circulator 319, the optical circulator 3191 has one more port 4 for guiding the communication signal light A sent by the optical transmitter to the first optical port 314, so that the energy transmission light, signal lights D / C(d) / B(d), communication signal lights A and B are transmitted through a single optical fiber 313, thereby further achieving the purpose of simplifying installation and reducing costs. Another feasible way is that the first optical module 333 retains the fourth optical port 3122, and replaces the optical circulator 3191 with an optical multiplexer. The optical output of the optical transmitter and the second optical port can be docked to the first optical port 314 through the optical multiplexer. In the first optical module 333 and the first optical module 334, when the signal light is D / B(d), an optical multiplexer / demultiplexer can be used to replace the optical circulator 3191 or the optical circulator 319.

[0368] In the above embodiments, the energy transmission light C is emitted by the first communication device, and the first optical module converts the signal lights D / C(d) / B(d) into the electrical signal d.

[0369] In some other embodiments of the first communication system, the first communication device does not emit the energy transmission light, the first optical module emits the energy transmission light C, and the first communication device converts the signal light D into the electrical signal d.

[0370] The second embodiment of the first communication device 200 is as Figure 3a shown. The difference between the first communication device 220 and the first communication device 210 is that the first communication device 220 includes a signal PD 318 for converting the signal lights D / C(d) / B(d) into the signal d; the signal lights D / C(d) / B(d) are provided by the plugged-in first optical module to the signal PD 318.

[0371] Correspondingly, the fourth embodiment of the first optical module 300 is as Figure 3b shown. The difference between the first optical module 340 in this embodiment and the foregoing first optical module embodiments is that the first optical module 340 includes an energy supply LD 218. The energy supply LD 218 receives the control signal of the processor 212 through the electrical interface 317, and the generated energy transmission light is sent to the second communication system through the first optical port 314 via the optical fiber 313. The signal lights D / C(d) / B(d) received by the first optical port 314 through the optical fiber 313 reach the second optical port 316 through the optical channel 315 to be provided to the signal PD 318 in the connected first communication device 220. As a variation of this embodiment, the first optical module can also be as Figure 3c shown, and further includes an optical circulator 319 to combine the energy transmission light C and the signal lights D / C(d) / B(d) into one path and transmit them through a single optical fiber 313, or can also be as Figure 3dAs shown, two optical ports are provided and divided into two paths for transmission through two optical fibers 313. Alternatively, the third optical ports 3121 / 3122 of the optical transmitter / optical receiver / optical transceiver are multiplexed to transmit the energy-carrying light and / or receive the signal light D / C(d) / B(d), so as to share the optical fibers as much as possible and reduce the number of optical fibers, etc. In the first optical module 341, when the signal light is D / B(d), an optical multiplexer / demultiplexer can be used to replace the optical circulator 319.

[0372] In the third embodiment of the first communication system, both the energy-supplying LD and the signal PD are provided in the first communication device.

[0373] The third embodiment of the first communication device 200 is as Figure 4a shown. The difference between the first communication device 230 and the above-mentioned embodiment of the first communication device is that it includes both the energy-supplying LD 218 and the signal PD 318.

[0374] The fourth embodiment of the first communication device 200 is as Figure 4b shown. The difference between the first communication device 240 and the first communication device 230 is that it further includes a circulator 319, which can combine the energy-carrying light C and the signal light D / C(d) / B(d) for transmission in one path. In the first communication device 240, when the signal light is D / B(d), an optical multiplexer / demultiplexer can be used to replace the optical circulator 319.

[0375] Corresponding to the first communication device 240, the fifth embodiment of the first optical module 300 is as Figure 4c shown. The difference between the first optical module 350 and the first optical module 310 is that the signal PD 318 is omitted. The second optical port 316 is docked with the port 2 of the optical circulator 319.

[0376] Corresponding to the first communication device 230, the other two embodiments of the first optical module 300 are respectively as Figure 4d and Figure 4e shown. The first optical module 360 includes two optical channels 315 (which can be considered as a first channel and a second channel respectively) for transmitting the energy-carrying light C and the signal light D / C(d) / B(d). Correspondingly, the third sub-optical port 3161 and the fourth sub-optical port 3162 at the tail end are respectively docked with the optical outlet of the energy-supplying LD and the optical inlet of the signal PD in the first communication device 230. The difference between the first optical module 370 and the first optical module 360 is that it includes a circulator 319, still combining the energy-carrying light C and the signal light D / C(d) / B(d) for transmission through one optical fiber 313. The third sub-optical port 3161 and the fourth sub-optical port 3162 are similar in structure or shape to the second optical port, except that the transmitted light is different. In the first optical module 370, when the signal light is D / B(d), an optical multiplexer / demultiplexer can be used to replace the optical circulator 319.

[0377] Another feasible way is that the above first communication device may further include one optical port (such as the optical port 261 shown in Figure 5b ) or two optical ports (such as the optical ports 251 and 252 shown in Figure 5a ) for connecting optical fibers, used to transmit energy-carrying light and signal light. Correspondingly, as shown in Figure 5c , in the optical channel of the first optical module 380, only the optical fiber connected to the first communication device 250 / 260 can pass through, or the optical fiber connected to the first communication device does not pass through the first optical module, and the first optical module does not participate in optical energy supply and is only used for optical communication.

[0378] In the fourth embodiment of the first communication system, both the energy supply LD and the signal PD are arranged in the first optical module.

[0379] Another embodiment of the first optical module 300 is as shown in Figure 6a . The difference between the first optical module 390 and the above-described embodiment of the first optical module is that it includes an energy supply LD and a signal PD, and the processor 311 is further used to control the energy supply LD to supply energy to the second communication system connected through the optical fiber 313. Correspondingly, the first communication device 200 does not participate in energy supply and is only used for communication.

[0380] Another embodiment of the first optical module 300 is as shown in Figure 6b . The difference between the first optical module 391 and the first optical module 390 is that: the optical receiver converts the signal light D / C(d) / B(d) received through the fourth optical port 3122 via the optical fiber 313 into the signal d.

[0381] Another embodiment of the first optical module 300 is as shown in Figure 6c . The difference between the first optical module 392 and the first optical module 390 is that: the optical transceiver converts the signal light D / C(d) / B(d) into the signal d.

[0382] Figure 6d The difference between the first optical module 393 shown in and the first optical module 391 is that an optical circulator 3191 is added, and the third optical port 3121 and the fourth optical port 3122 are omitted, which is beneficial to further reducing the number of optical fibers and lowering costs. Another feasible way is that the first optical module 393 retains the fourth optical port 3122, and replaces the optical circulator 3191 with an optical multiplexer, and the optical output port of the optical transmitter and the optical output port of the energy supply LD 218 can be docked with the first optical port 314 through the optical multiplexer. Figure 6e The difference between the first optical module 394 shown in and the first optical module 392 is that an optical circulator 319 is added, and the fourth optical port 3122 is omitted. In the first optical module 393 and the first optical module 394, when the signal light is D / B(d), an optical multiplexer / demultiplexer can be used to replace the optical circulator 3191 or the optical circulator 319.

[0383] Corresponding to the above first communication system embodiment, a second communication system embodiment provided in the present application has, in addition to the function of communicating through optical fibers (for example, the optical communication function of a communication system for receiving power in a network formed by an optical and electrical hybrid cable), the function of receiving energy through optical fibers.

[0384] As Figure 7a shown, the second communication system 400 includes: a second communication device 500 and a second optical module 600 plugged into the second communication device 500. The second communication device 500 may have the function of communicating through the second optical module and may also have the function of receiving optical energy. Among them, the function of the second communication device 500 communicating through the second optical module is similar to the function of a communication device (such as a wireless AP, a remote module, a pRRU, a 5G small base station, etc. in the vicinity) communicating through an optical module in the above-mentioned communication system for receiving power.

[0385] In one embodiment of the second communication system 400, the second communication device 500 is responsible for converting the energy-carrying light into electrical energy to provide energy for the second communication system 400 and emitting a signal d, and the second optical module is responsible for converting the signal d into a signal light D / C(d) / B(d).

[0386] The first embodiment of the second communication device 500 is as Figure 7b shown, the second communication device 510 includes a processor 511, a memory 512, a network interface 513, a wireless module 514, an antenna, a monitoring PD (MPD) 516, and a photovoltaic PD 515.

[0387] The memory 512 is used to store programs and data. The network interface 513 is used to connect to the second optical module, enabling the second communication device 500 to communicate with the first communication system 100 for energy supply in the above embodiments through the second optical module and obtain energy. The photovoltaic PD 515 is used to convert the energy transmission light sent by the first communication system 100 into electric energy to power the second communication device 510. The MPD 516 detects the power of the energy transmission light received by the photovoltaic PD 515 and reports it to the processor 511. Optionally, the energy transmission light detected by the MPD 516 is obtained by splitting the energy transmission light by a splitter (not shown in the figure). For example, the light inlet of the splitter is docked with the optical port on the tail end of the second optical module, and the light outlet of the splitter is respectively docked with the optical inlet of the photovoltaic PD 515 and the optical inlet of the MPD 516. Alternatively, the splitter is arranged inside the second optical module, and the light outlet of the splitter is respectively docked with the optical inlet of the photovoltaic PD 515 and the optical inlet of the MPD 516 through the optical port on the tail end of the second optical module. Since the MPD 516 is used to monitor the energy transmission light, only a very small part (such as 1%) of the energy transmission light needs to be split, or in actual use, it can be set according to the actual situation. The part related to MPD monitoring below is similar to this. The wireless module 514 and the antenna are used to transmit and receive wireless signals with the mobile terminal. The processor 511 is used to process and forward wireless signals by running the programs in the memory 512. For example, after processing the signals or data sent by the mobile terminal, it is converted into communication signal light through the second optical module and sent to the communication system 100. When powered by the photovoltaic PD 515, the processor 511 is further used to send out a signal d according to the power of the energy transmission light detected by the MPD 516 (see the foregoing description for details). The network interface 513 can be used to transmit the signal d to the connected second optical module, and the second optical module converts it into signal light D and sends it to the first communication system 100. Since a current is generated when the MPD 516 detects the power of the energy transmission light, the MPD 516 is also used to provide current for converting the signal d into signal light D.

[0388] The components and functional modules in the second communication device 500 are not limited to the content given in the above embodiments, and can be increased or decreased according to the actual situation. For example, when the second communication device 500 is in a wired connection with the terminal device, the antenna and the wireless module can be omitted; or, in order to improve the security of communication, the second communication device 500 can further include an encryption module, and so on.

[0389] Correspondingly, the first embodiment of the second optical module 600 is as Figure 7cAs shown, the difference between the second optical module 610 and the first optical module in the foregoing embodiment is as follows: It is used to plug into the second communication device 500, and includes a signal LD 611. Moreover, the transmission direction of the energy-carrying light in the optical channel is from the front end to the tail end of the second optical module, and enters the second communication device 510 through the second optical port 316 at the tail end. Furthermore, when the second optical module 610 is plugged into the second communication device 510 and the photovoltaic PD 515 receives the energy-carrying light, the signal LD 611 can obtain a driving current through the electrical interface 317, and convert the signal d received by the electrical interface 317 into the signal light D. The signal light D is guided by the optical circulator 319 to the first optical port 314, and is sent to the first communication system 100 through the first optical port 314 and the connected optical fiber 313.

[0390] The second embodiment of the second optical module 600 is as Figure 7d shown. The difference between the second optical module 620 and the second optical module 610 is that the energy-carrying light C and the signal light D are each transmitted through an optical port. Among them, the energy-carrying light C is transmitted through the first sub-optical port 3141, and the signal light D is transmitted through the second sub-optical port 3142.

[0391] Another feasible way is that the function of the signal LD 611 can also be realized by an optical transmitter (as Figure 7g shown) or a BOSA (as Figure 7h shown). In this case, the second optical module 600 can omit the signal LD 611. Moreover, the optical transmitter or BOSA converts the signal d into the optical signal B(d), that is, multiplexes the signal light B to carry the signal d. Correspondingly, the signal light received by the first communication system 100 is B(d), and it can be converted into the signal d by a method similar to the above embodiment.

[0392] The third embodiment of the second optical module 600 is as Figure 7e shown. The difference between the second optical module 630 and the second optical module 610 is that the signal LD 611 is replaced by a beam splitter 631 and a signal modulator 632. The beam splitter 631 splits a small part (such as 10%) from the energy-carrying light to the signal modulator, and the signal modulator modulates the signal d onto the small part of the energy-carrying light to obtain the signal light C(d), that is, multiplexes the energy-carrying light C to carry the signal d. Correspondingly, the signal light received by the first communication system 100 is C(d), and it can be converted into the signal d by a method similar to the above embodiment.

[0393] The fourth embodiment of the second optical module 600 is as Figure 7f shown. The difference between the second optical module 640 and the second optical module 630 is that the energy-carrying light C and the signal light C(d) are each transmitted through an optical fiber 313. Another two embodiments of the second optical module 600 are as Figure 7i and Figure 7jAs shown, compared with the second optical module 641, the second optical module 643 adds an optical multiplexer / demultiplexer 3192. The second optical port 316, the optical transmitter, and the optical receiver are connected to the first optical port 314 through the optical multiplexer / demultiplexer 3192, eliminating the third optical port 3121 and the fourth optical port 3122, so that the number of connected optical fibers can be further reduced. Compared with the second optical module 642, the second optical module 644 adds an optical multiplexer / demultiplexer 3192 and eliminates the third optical port 3121. Another feasible way is that the second optical module 643 retains the third optical port 3121, replaces the optical circulator 3191 with an optical demultiplexer, and the optical inlet of the optical receiver is connected to the first optical port 314 through the optical multiplexer / demultiplexer with the second optical port 316.

[0394] In another embodiment of the second communication system 400, the second communication device 500 is responsible for converting the signal d into an optical signal D / C(d), and the second optical module 600 is responsible for converting the energy-carrying optical signal into electrical energy.

[0395] The second embodiment of the second communication device 500 is as Figure 8a shown. The difference between the second communication device 520 and the second communication device 510 is that it includes a signal LD 611, the second optical module 600 supplies power to the processor 511 and the signal LD 611, and reports the power detection result of the energy-carrying optical signal.

[0396] Correspondingly, the fifth and sixth embodiments of the second optical module 600 are respectively as Figure 8b 、 Figure 8c shown. The differences between the second optical module 650 and the second optical module 610, and between the second optical module 660 and the second optical module 620 are both that they include a photovoltaic PD 515 and an MPD 516. Moreover, the electrical energy obtained by the photovoltaic PD 515 is provided to the plugged second communication device 520 through the electrical interface 317, and the detection result of the MPD 516 and the current used to drive the signal LD 611 are also sent to the second communication device 520 through the electrical interface 317.

[0397] The third embodiment of the second communication device 500 is as Figure 8d shown. The difference between the second communication device 530 and the second communication device 520 is that the signal LD 611 is replaced by a signal modulator 632, and the signal modulator 632 uses a small part of the energy-carrying optical signal provided by the second optical module to convert the signal d into an optical signal C(d).

[0398] Correspondingly, the seventh and eighth embodiments of the second optical module 600 are respectively as Figure 8e and 8fAs shown, the differences between the second optical module 670 and the second optical module 650, and between the second optical module 680 and the second optical module 660 are both that an optical splitter 631 and a fifth optical port 671 are added. The fifth optical port 671 supplies a small part of the energy transmission light split by the optical splitter 631 to the second communication device 530 for converting the signal d into the optical signal C(d).

[0399] Another possible structure of the second communication system 400 is that the second communication device 500 is responsible for converting the energy transmission light into electrical energy and converting the signal d into the optical signal D / C(d). The second optical module 600 is responsible for transmitting the energy transmission light and the optical signal D / C(d).

[0400] The fourth and fifth embodiments of the second communication device 500 are respectively as Figure 9a 、 Figure 9b As shown, the difference between the second communication device 540 and the foregoing embodiments of the second communication device 500 is that it includes both a photovoltaic PD 515 and an MPD 516, and also includes a signal LD 611. The difference between the second communication device 550 and the second communication device 540 is that the signal LD 611 is replaced by an optical splitter 631 and a signal modulator 632.

[0401] Correspondingly, the ninth and tenth embodiments of the second optical module 600 are respectively as Fig.9c 、 Figure 9d As shown, the differences between the second optical module 690 and the first optical module 360, and between the optical module 6100 and the first optical module 370 are both that the transmission directions of the energy transmission light and the optical signal D / C(d) are opposite.

[0402] The sixth and seventh embodiments of the second communication device 500 are respectively as Fig.9e 、 Figure 9f As shown, the differences between the second communication device 560 and the second communication device 540, and between the second communication device 570 and the second communication device 550 are both that an optical circulator 319 is added for combining the energy transmission light C and the optical signal D / C(d) into one path, so that only one optical port needs to be provided for the second communication device 550 at the end of the second optical module.

[0403] Correspondingly, the eleventh embodiment of the second optical module 600 is as Figure 9gAs shown in the figure, the second optical port 316 in the second optical module 6110 is used to provide power transmission light for the second communication device 550 / 560, and is also used to receive the signal light D / C(d) sent by the second communication device 550 / 560. The difference between the second optical module 6110 and the second optical module 350 is that the transmission directions of the power transmission light and the signal light D / C(d) are opposite. Another feasible way is that the second optical module 600 adds an optical circulator and a first optical port on the basis of the second optical module 6110, and transmits the power transmission light and the signal light D / C(d) through one optical fiber each.

[0404] Another possible structure of the second communication system 400 is that the second communication device 500 is not only responsible for converting the power transmission light into electrical energy and converting the signal d into the signal light D / C(d), but also responsible for transmitting the power transmission light and the signal light D / C(d). The second optical module 600 is not responsible for the tasks related to energy reception.

[0405] The eighth to eleventh embodiments of the second communication device 500 are respectively as Figure 9h , Figure 9i , Figure 9j and Figure 9k shown. The difference between the second communication devices 580 to 5110 and the second communication devices 540 to 570 is that optical ports 5171 / 5172 / 518 for connecting the optical fiber 313 are added.

[0406] Another possible structure of the second communication system 400 is that the second optical module 600 is not only responsible for converting the power transmission light into electrical energy and converting the signal d into the signal light D / C(d) / B(d), but also responsible for transmitting the power transmission light and the signal light D / C(d) / B(d). The second communication device 500 is not responsible for the tasks related to energy reception, and the second optical module 600 supplies power to the second communication device 500.

[0407] The twelfth embodiment of the second optical module 600 is as Fig.10a shown. The difference between the second optical module 6120 and the foregoing embodiments is that it includes both a photovoltaic PD 515 and an MPD 516, and also includes a signal LD 611. Moreover, the MPD 516 reports the monitoring result to the processor 311, and the processor 311 issues the signal d.

[0408] The thirteenth embodiment of the second optical module 600 is as Fig.10b shown. The difference between the second optical module 6130 and the second optical module 6120 is that a splitter 631 and a signal modulator 632 are used to replace the signal LD 611.

[0409] The fourteenth and fifteenth embodiments of the second optical module 600 are respectively as Fig.10c , Fig.10dAs shown, the difference between the second optical module 6140 and the second optical module 6120, and the difference between the second optical module 6150 and the second optical module 5130 are both that the energy transmission light and the signal light D / C(d) are each transmitted through different optical ports, so that the energy transmission light and the signal light D / C(d) are each transmitted through one optical fiber.

[0410] Another two embodiments of the second optical module 600 are as Fig.10e and Fig.10f shown. The difference between the second optical module 6160 and the second optical module 6140 and the second optical module 6150 is that: the optical transmitter converts the signal d into the signal light B(d) and sends it to the third optical port 3121; the third optical port 3121 sends the signal light B(d) to the first communication system 100 through the optical fiber 313. The difference between the second optical module 6170 and the second optical module 6160 is that: the optical transceiver converts the signal d into the signal light B(d). Another two embodiments of the second optical module 600 are as Figure 10g and Fig.10h shown. Compared with the second optical module 6160, the second optical module 6180 adds an optical multiplexer / demultiplexer 3192, and the optical inlet of the photovoltaic PD 515, the optical transmitter and the optical receiver are docked with the first optical port 314 through the optical multiplexer / demultiplexer 3192, and the third optical port 3121 and the fourth optical port 3122 are omitted; compared with the second optical module 6170, the second optical module 3190 adds an optical multiplexer / demultiplexer 3192 and omits the third optical port 3121. Another feasible way is that the second optical module 6180 retains the third optical port 3121, and the optical inlet of the optical receiver and the photovoltaic PD 515 are docked with the first optical port 314 through the optical multiplexer / demultiplexer 3192.

[0411] In the case of low security requirements, the optical channels in the above embodiments can also be omitted, as long as there is enough space in the above first optical module or second optical module for the energy transmission light to pass unobstructed between the front end and the tail end of the first optical module or the second optical module. Another feasible way is that the above optical channels are replaced by optical fibers, which can reduce the optical loss and meet higher security requirements.

[0412] In the above embodiments, after the first optical module 300 is plugged into the first communication device 200, it can obtain electric energy from the first communication device 200 through the gold fingers for operation. In the second communication system 400, when the second communication device 500 includes the photovoltaic PD 515, the second optical module 600 obtains electric energy from the second communication device 500 through the gold fingers; when the second optical module 600 includes the photovoltaic PD 515, the second optical module 600 supplies power to the second communication device 500.

[0413] When the first communication system 100 provided by the embodiment of the present application is networked with the second communication system 400, communication and power supply can be carried out between the two through one to four optical fibers. The number of optical ports at the front ends of the first optical module 300 and the second optical module 600 connected to the optical fibers needs to be consistent with the number of optical fibers. Among them, the optical fiber for transmitting the power transmission light C and the signal lights D / C(d) / B(d) can be one. As Fig.11a shown, the signal d multiplexes the power transmission light, and the power transmission light C and the signal light C(d) are transmitted between the first communication system 101 (an embodiment of the first communication system 100) and the second communication system 401 (an embodiment of the second communication system 400) through a single optical fiber 313. At this time, there is one optical port at the front end of the first optical module of the first communication system 101 for transmitting the power transmission light and the signal light C(d), and this optical port is connected to one end of the single optical fiber 313. Correspondingly, there is also one optical port at the front end of the second optical module of the second communication system 401 for transmitting the power transmission light and the signal light C(d), the difference being that the transmission direction is opposite, and this optical port is connected to the other end of the single optical fiber 313. Again, as Fig.11b shown, power supply and the signal lights related to power transmission and supply are also carried out between the first communication system 101 and the second communication system 402 (an embodiment of the second communication system 400) through one optical fiber. The difference is that the second communication system 402 carries the signal d through the signal LD optical wave D. When the first communication system 100 and the second communication system 400 supply power and communicate through one optical fiber, as Fig.11c shown, the first communication system 102 (an embodiment of the first communication system 100) and the second communication system 403 (an embodiment of the second communication system 400) use the first optical module and the second optical module to perform protocol communication to transmit the signal lights D / C(d) / B(d). The second communication system 403 sends the signal d to the second optical module, and the second optical module is responsible for transmitting the signal d to the first communication system 102 through optical communication, and then the first optical module in the first communication system 102 restores the signal d. The power transmission light, the communication signal light A, the communication signal light B, and the optical waves D / C(d) / B(d) carrying the signal d are combined into one path through an optical circulator and transmitted through a single optical fiber 313. Fig.11c The communication module shown in

[0414] can be understood as a module with optical communication functions in the optical module, for example, a module that can perform optoelectronic conversion, electro-optical conversion, and data processing. The optical circulator can be arranged in the optical module. Here, in order to more clearly show the structure related to power supply, the boundary between the communication device and the optical module is blurred. Fig.11dAs shown, two energy-related optical fibers 313 are connected between the first communication system 101 and the second communication system 404 (an embodiment of the second communication system 400). One optical fiber 313 is used to transmit the energy-carrying light C, and the other is used to transmit the signal-carrying light C(d). Or as Fig.11e As shown, between the first communication system 101 and the second communication system 405 (an embodiment of the second communication system 400), one optical fiber is used to transmit the energy-carrying light, and the other optical fiber is used to transmit the signal light D. Or as Fig.11f As shown, the signal light D / B(d) can multiplex the optical fiber for communication. The communication optical fiber can be one or two. It can also be an additional newly added optical fiber for transmitting the signal light D / B(d). Or as Figure 11g As shown, when the first communication device in the first communication system 100 is a switch or a hub (Central Office, CO), it is connected to the AP (an embodiment of the second communication device in the second communication system 400) through two optical fibers. One is for communication and transmitting the signal light D / B(d), and the other is dedicated to energy supply and transmits the energy-carrying light.

[0415] In the above embodiments, the first communication device can be a switch or a hub (such as Hub, RHUB, etc.), and the second communication device 500 can be a 5G small base station, an AP, a remote module, a pRRU, etc. The first communication device can be directly connected to the second communication device or the second optical module in the second communication system through an optical fiber, or the first optical module inserted can be connected to the second communication device or the second optical module in the second communication system through an optical fiber to achieve energy transmission. Moreover, the first communication device in the first communication system is connected to the second optical module inserted in the second communication device in the second communication system through the first optical module and an optical fiber to achieve optical communication between the first communication system and the second communication system. The first communication device, the first optical module, the second communication device, and the second optical module provided in the above embodiments can be used to implement Fig.12a the campus network of the all-optical fiber networking asteroid architecture as shown, and can also be used to implement Figure 12b the Ethernet as shown, Fig.12c the distributed wifi based on radio over fiber (ROF) as shown, and Fig.12d the layout of the 5G indoor small base station with optical fiber networking as shown, achieving the purpose of reducing the number and cost of cables and simplifying network installation and maintenance.

[0416] The process of the first communication system 100 supplying energy to the second communication system 400 can be as Fig.13a shown, including a detection stage and a normal power supply stage.

[0417] The detection stage includes step 1311 and step 1312.

[0418] Step 1311: The first communication system 100 first enters the detection mode and sends a first low-power energy-transferring light to the communication component (second optical module) of the second communication system 400. The first energy-transferring light is generated by the processor of the first communication device 200 or the first optical module 300 to control the above-mentioned power-supplying LD, and then transmitted to the second communication system 400 through an optical fiber.

[0419] For example, when the communication device 200 in the first communication system 100 is Figure 2a the communication device 210 shown, the processor 212 controls the power-supplying LD 218 to emit the first energy-transferring light to the first optical module 300. When the first optical module 300 is Figure 2b the first optical module 310 shown, or is Figure 2e the first optical module 331 shown, or is Figure 2f the first optical module 332 shown, the first energy-transferring light reaches the first optical port 314 through the second optical port 316 on the first optical module 310 that docks with the first communication device 210. The first optical port 314 sends the first energy-transferring light to the second communication system 400 through the connected optical fiber 313. When the first optical module 300 is Figure 2c the first optical module 320 shown, the first energy-transferring light reaches the optical circulator 319 through the second optical port on the first optical module 320 that docks with the first communication device 210, and then is guided by the optical circulator 319 to the first optical port 314, and then is sent to the second communication system 400 by the first optical port 314 through the connected optical fiber. When the first optical module 300 is Figure 2d the first optical module 330 shown, the first energy-transferring light reaches the first sub-optical port 3141 through the above-mentioned second optical port, and is sent to the second communication system 400 by the first sub-optical port 3141 through an optical fiber.

[0420] When the first communication device 200 is Figure 3a the first communication device 220 shown, the processor 212 sends a first control signal to the first optical module 300 through the line on the network interface 217 to control the first optical module 300 to send the first energy-transferring light to the second communication system 400 through an optical fiber. When the first optical module 300 is Figure 3b the first optical module 340 shown, the power-supplying LD 218 in the first optical module 340 receives the above-mentioned first control signal through the electrical interface 317, and in response to the first control signal, emits the first energy-transferring light to the first optical port 314. The first optical port 314 sends the first energy-transferring light to the second communication system 400 through an optical fiber. When the first optical module is Figure 3c the first optical module 341 shown, the first energy-transferring light emitted by the power-supplying LD 218 first reaches the optical circulator 319, and then is guided by the optical circulator 319 to the first optical port 314. When the first optical module is Figure 3dWhen the first optical module 342 as shown is considered, the first energy-transferring light emitted by the power-supplying LD 218 is sent by the first sub-optical port 3141 to the second communication system 400 through an optical fiber.

[0421] When the first communication device 200 is Figure 4a the first communication device 230 as shown, the processor 212 controls the power-supplying LD 218 to emit the first energy-transferring light to the first optical module 300. When the first optical module 300 is Figure 4d the first optical module 360 as shown, the first energy-transferring light reaches the first sub-optical port 3141 through the third sub-optical port 3161 on the first optical module 350 that docks with the first communication device 230. The first sub-optical port 3141 sends the first energy-transferring light to the second communication system 400 through the connected optical fiber 313. When the first optical module 300 is Figure 4e the first optical module 370 as shown, the first energy-transferring light reaches the optical circulator 319 through the third sub-optical port 3161 on the first optical module 350 that docks with the first communication device 230. Then, the optical circulator 319 guides it to the first optical port 314.

[0422] When the first communication device 200 is Figure 4b the first communication device 240 as shown, the first energy-transferring light emitted by the processor 212 controlling the power-supplying LD 218 first enters the optical circulator 319, and then the optical circulator 319 guides it to the first optical module 300. When the first optical module 300 is Figure 4c the first optical module 350 as shown, the first energy-transferring light reaches the first optical port 314 through the second optical port 316 on the first optical module 350 that docks with the first communication device 230. The first optical port 314 sends the first energy-transferring light to the second communication system 400 through the connected optical fiber 313.

[0423] When the first communication device 200 is Figure 5a the first communication device 250 as shown, the processor 212 controls the power-supplying LD 218 to emit the first energy-transferring light to the optical port. The optical port sends the first energy-transferring light to the second communication system 400 through the optical fiber 313. The optical fiber 313 can pass through the first optical module 300 (as Figure 5c shown), or it can not pass through the first optical module 300 and be connected to the second communication system 400 outside the first optical module 300.

[0424] When the first communication device 200 is Figure 5b the first communication device 260 as shown, the first energy-transferring light emitted by the processor 212 controlling the power-supplying LD 218 first enters the optical circulator 319 and then is guided to the optical port. Then, the optical port sends the first energy-transferring light to the second communication system 400 through the optical fiber 313.

[0425] When the first optical module 300 is Figure 6a the first optical module 390 shown, or Figure 6b the first optical module 391 shown, or Figure 6c when it is the first optical module 392 shown, the processor 311 controls the power - supplying LD 218 to emit the first energy - transferring light to the first optical port 314. The first energy - transferring light is sent by the first optical port 314 through the optical fiber 313 to the second communication system 400.

[0426] Step 1312: The second communication system 400 sends a first signal light based on the above - mentioned first energy - transferring light to request power supply from the first communication system 100. Specifically, after receiving the first energy - transferring light, the second communication system 400 converts the first energy - transferring light into electric energy through the above - mentioned photovoltaic PD to supply power to the processor. Meanwhile, the MPD monitors the power of the first energy - transferring light and reports the monitoring result to the processor. The processor sends a first signal to the photoelectric converter (such as the above - mentioned signal LD, signal modulator or optical transmitter, etc.) according to the monitoring result. And the MPD provides the current obtained during monitoring to the photoelectric converter to drive the photoelectric converter to convert the first signal into a first signal light. When the signal d1 carried by the first signal light is generated by the second communication device 500, the first signal light can be converted into a first signal light by the second communication device 500 or the second optical module 600 connected to the second communication device 500; or, the signal carried by the first signal light can be generated and converted into a first signal light by the second optical module 600.

[0427] For example, in the second communication system 400, when the second optical module 600 is Figure 7c the second optical module 610 shown, the first optical port 314 receives the above - mentioned first energy - transferring light through the optical fiber 313. The first energy - transferring light enters the optical circulator 319 through the first optical port 314, is guided by the optical circulator 319 to the second optical port 316, and then is provided to the second communication device plugged with the second optical module 610 through the second optical port 316. When the second optical module 600 is Figure 7d the second optical module 620 shown, the first sub - optical port 3141 receives the above - mentioned first energy - transferring light through the optical fiber 313. The first energy - transferring light reaches the second optical port 316 through the first sub - optical port 3141 and is provided to the second communication device plugged with the second optical module 620. When the second optical module 600 is Figure 7e the second optical module 630 shown, the first optical port 314 receives the first energy - transferring light through the optical fiber 313. The first energy - transferring light enters the optical circulator 319 through the first optical port 314, is guided by the optical circulator 319 to the optical inlet of the optical splitter 631, and after a small part is split by the optical splitter 631, it reaches the second optical port 316 and is provided to the second communication device plugged with the second optical module 630. When the second optical module 600 is Figure 7fWhen the second optical module 640 as shown is involved, the first sub-optical port 3141 receives the above-mentioned first energy transmission light through the optical fiber 313. The first energy transmission light reaches the optical inlet of the optical splitter 631 through the first sub-optical port 3141. After a small part is split by the optical splitter 631, it reaches the second optical port 316 and is provided to the second communication device plugged with the second optical module 640. When the second optical module 600 is Figure 7g the second optical module 641 as shown, the first optical port 314 receives the above-mentioned first energy transmission light through the optical fiber 313. The first energy transmission light reaches the second optical port 316 through the first optical port 314 and is provided to the second communication device plugged with the optical module 641.

[0428] Correspondingly, the second communication device 500 is Figure 7b the second communication device 510 as shown. The above-mentioned first energy transmission light provided by the second optical module (such as the second optical modules 610 / 620 / 630 / 640) connected to the second communication device 510 reaches the photovoltaic PD 515. The photovoltaic PD 515 converts the first energy transmission light into electrical energy and provides it to the processor 511. At the same time, the MPD 516 monitors the power of the first energy transmission light, reports the monitoring result to the processor 511, and provides the current obtained during the monitoring process to the second optical module connected to the second communication device 510 through the network interface 513. And the processor 511 issues the above-mentioned first signal based on the electrical energy and the monitoring result of the MPD 516. The first signal is sent to the connected second optical module through the network interface 513.

[0429] When the second optical module connected to the second communication device 510 is Figure 7c the second optical module 610 as shown, the signal LD611 receives the above-mentioned first signal and current through the electrical interface 317, and converts the first signal into the above-mentioned first signal light under the drive of the current. The first signal light enters the optical circulator 319, is guided by the optical circulator 319 to the first optical port 314, and is sent to the first communication system 100 by the first optical port 314 through the optical fiber 313.

[0430] When the second optical module connected to the second communication device 510 is Figure 7d the second optical module 620 as shown, the signal LD611 receives the above-mentioned first signal and current through the electrical interface 317, and converts the first signal into the above-mentioned first signal light under the drive of the current. The first signal light is sent to the first communication system 100 by the second sub-optical port 3142 through the optical fiber 313.

[0431] When the second optical module connected to the second communication device 510 is Figure 7eWhen the second optical module 630 shown is involved, the signal modulator 632 receives the above-mentioned first signal and current through the electrical interface 317, and receives a part of the energy transfer light split by the optical splitter 631. Then, driven by the current, the signal modulator 632 modulates the first signal onto the part of the energy transfer light to obtain the above-mentioned first signal light. The first signal light enters the optical circulator 319, is guided by the optical circulator 319 to the first optical port 314, and is sent by the first optical port 314 to the first communication system 100 through the optical fiber 313.

[0432] When the second optical module connected to the second communication device 510 is Figure 7f the second optical module 640 shown, the signal modulator 632 receives the above-mentioned first signal and current through the electrical interface 317, and receives a part of the energy transfer light split by the optical splitter 631. Then, driven by the current, the signal modulator 632 modulates the first signal onto the part of the energy transfer light to obtain the above-mentioned first signal light. The first signal light is sent to the first communication system 100 through the optical fiber by the second sub-optical port 3142.

[0433] When the second optical module connected to the second communication device 510 is Figure 7g the second optical module 641 shown, the optical transmitter receives the above-mentioned first signal and current through the electrical interface 317, and converts the first signal into the above-mentioned first signal light driven by the current. Then, it is sent to the first communication system 100 through the optical fiber 313 by the third optical port 3121. When the second optical module connected to the second communication device 510 is Figure 7h the second optical module 642 shown, the difference from the second optical module 641 is that the optical transceiver converts the first signal into the above-mentioned first signal light driven by the current.

[0434] For another example, when the second optical module 600 in the second communication system 400 is Figure 8b the second optical module 650 shown, the first optical port 314 receives the above-mentioned first energy transfer light sent by the first communication system 100 through the optical fiber 313. The first energy transfer light enters the optical circulator 319 through the first optical port 314 and is guided by the optical circulator 319 to the photovoltaic PD 515. The photovoltaic PD 515 converts the first energy transfer light into electrical energy and provides it to the second communication device plugged into the second optical module 650 through the electrical interface 317. At the same time, the MPD 516 monitors the power of the first energy transfer light and provides the monitoring result and the current obtained during the monitoring process to the second communication device plugged into the second optical module 650 through the electrical interface 317.

[0435] When the second optical module 600 is Figure 8cWhen referring to the second optical module 660 as shown, the first sub-optical port 3141 receives the above-mentioned first energy-transmitting light sent by the first communication system 100 through the optical fiber 313. This first energy-transmitting light reaches the photovoltaic PD 515 through the first sub-optical port 3141, is converted into electrical energy by the photovoltaic PD 515, and is provided to the second communication device plugged into the second optical module 660 through the electrical interface 317. At the same time, the MPD 516 monitors the power of this first energy-transmitting light, and provides the monitoring result and the current obtained during the monitoring process to the second communication device plugged into the second optical module 660 through the electrical interface 317.

[0436] Correspondingly, the second communication device 500 is Figure 8a the second communication device 520 as shown. It obtains electrical energy, the power monitoring result of the energy-transmitting light, and the current for driving the signal LD 611 from the connected second optical module through the network interface 513. The processor 511 issues the above-mentioned first signal to the signal LD 611 based on this electrical energy and the monitoring result. The signal LD 611 converts this first signal into the above-mentioned first signal light under the drive of this current, and provides it to the second optical module through the optical port on the connected second optical module.

[0437] When the second optical module plugged into the second communication device 520 is Figure 8b the second optical module 650 as shown, the second optical module 650 receives the first signal light sent by the second communication device 520 through the second optical port 316. This first signal light reaches the first optical port 314 through the optical circulator 319, and is sent to the first communication system 100 by this first optical port 314 through the optical fiber 313.

[0438] When the second optical module plugged into the second communication device 520 is Figure 8c the second optical module 660 as shown, the second optical module 660 receives the first signal light sent by the second communication device 520 through the second optical port 316. This first signal light reaches the second sub-optical port 3142 from the second optical port 316, and is sent to the first communication system 100 by the second sub-optical port 3142 through the optical fiber 313.

[0439] Again, when the second optical module 600 in the second communication system 400 is Figure 8eWhen the second optical module 670 shown is involved, the first optical port 314 receives the above-mentioned first energy-carrying light transmitted by the first communication system 100 through the optical fiber 313. This first energy-carrying light is first guided by the optical circulator 319 to the optical splitter 631, and then the optical splitter 631 distributes most of this first energy-carrying light to the photovoltaic PD 515, and a small part of the energy-carrying light is branched off to the fifth optical port 671 and provided to the second communication device plugged into the second optical module 670. The photovoltaic PD 515 converts most of this first energy-carrying light into electrical energy and provides it to the second communication device plugged into the second optical module 660 through the electrical interface 317. At the same time, the MPD 516 monitors the power of this first energy-carrying light, and provides the monitoring result and the current obtained during the monitoring process to the second communication device plugged into the second optical module 660 through the electrical interface 317.

[0440] When the second optical module 600 is Figure 8f the second optical module 680 shown, the first sub-optical port 3141 receives the above-mentioned first energy-carrying light transmitted by the first communication system 100 through the optical fiber 313. This first energy-carrying light enters the optical splitter 631 from the first sub-optical port 3141 and is divided into two different parts. A larger part is distributed to the photovoltaic PD 515, and a smaller part is distributed to the fifth optical port 671 and provided to the second communication device plugged into the second optical module 680. The photovoltaic PD 515 converts this larger part of the energy-carrying light into electrical energy and provides it to the second communication device plugged into the second optical module 680 through the electrical interface 317. At the same time, the MPD 516 monitors the power of this first energy-carrying light, and provides the monitoring result and the current obtained during the monitoring process to the second communication device plugged into the second optical module 680 through the electrical interface 317.

[0441] Correspondingly, the second communication device 500 is Figure 8d the second communication device 530 shown. The processor 511 obtains electrical energy and the monitoring result of the energy-carrying light from the connected second optical module through the network interface 513, and based on this electrical energy and monitoring result, sends the above-mentioned first signal to the signal modulator 632. The signal modulator 632 obtains current from the connected second optical module through the network interface 513, and obtains a part of the energy-carrying light from the above-mentioned fifth optical port 671. Driven by this current, the signal modulator 632 modulates the first signal onto this part of the energy-carrying light to obtain the above-mentioned first signal light. The first signal light is sent to the second optical module through the optical port on the connected second optical module.

[0442] When the second optical module plugged into the second communication device 530 is Figure 8e the 670 shown, the second optical port 316 receives the first signal light emitted by the second communication device 530. This first signal light reaches the first optical port 314 through the optical circulator 319, and the first optical port 314 sends this first signal light to the first communication system 100 through the optical fiber 313.

[0443] When the second optical module plugged into the second communication device 530 is Figure 8f the 680 shown in the figure, the second optical port 316 receives the first signal light emitted by the second communication device 530. The first signal light reaches the second sub-optical port 3142 from the second optical port 316, and the second sub-optical port 3142 sends the first signal light to the first communication system 100 through the optical fiber 313.

[0444] For another example, when the second optical module 600 in the second communication system 400 is Fig.9c the second optical module 690 shown in the figure, the first sub-optical port 3141 receives the above-mentioned first energy transmission light sent by the first communication system 100 through the optical fiber 313. The first energy transmission light reaches the third sub-optical port 3161 from the first sub-optical port 3141 and is provided to the second communication device into which the second optical module 690 is plugged.

[0445] When the second optical module 600 is Figure 9d the second optical module 6100 shown in the figure, the first optical port 314 receives the above-mentioned first energy transmission light sent by the first communication system 100 through the optical fiber 313. After the first energy transmission light enters the optical circulator 319 from the first optical port 314, it is guided to the third sub-optical port 3161 and provided to the second communication device into which the second optical module 6100 is plugged.

[0446] Correspondingly, the second communication device 500 is Figure 9a the second communication device 540 shown in the figure. The photovoltaic PD 515 converts the above-mentioned first energy transmission light provided by the third sub-optical port 3161 into electric energy and provides it to the processor 511. At the same time, the MPD 516 monitors the power of the first energy transmission light, reports the monitoring result to the processor 511, and provides the current obtained during the monitoring to the signal LD 611. The processor 511 sends the above-mentioned first signal to the signal LD 611 based on the electric energy and the monitoring result. The signal LD611 converts the first signal into the above-mentioned first signal light under the drive of the current. The first signal light can reach the optical port on the optical module connected to the second communication device 540. Or, the second communication device 500 is Figure 9bWhen referring to the second communication device 550 shown, the optical splitter 631 divides the first energy-carrying light provided by the third sub-optical port 3161 into two parts. A larger part of the energy-carrying light is split to the photovoltaic PD 515, and a smaller part of the energy-carrying light is split to the signal modulator 632. The photovoltaic PD 515 converts this larger part of the energy-carrying light into electrical energy and supplies it to the processor 511. At the same time, the MPD 516 monitors the power of this part of the energy-carrying light, reports the monitoring result to the processor 511, and supplies the current obtained during the monitoring process to the signal modulator 632. Based on this electrical energy and the monitoring result, the processor 511 sends the first signal to the signal modulator 632. Driven by this current, the signal modulator 632 modulates the first signal onto this smaller part of the energy-carrying light to obtain the first signal light. The first signal light can reach the optical port on the second optical module connected to the second communication device 550.

[0447] When the second optical module plugged into the second communication device 540 / 550 is Fig.9c the second optical module 690 shown, the fourth sub-optical port 3162 receives the first signal light sent by the second communication device 540 / 550. The first signal light can reach the second sub-optical port 3142 from the fourth sub-optical port 3162, and then is sent by the second sub-optical port 3142 to the first communication system 100 through the optical fiber 313.

[0448] When the second optical module plugged into the second communication device 54 / 550 is Figure 9d the second optical module 6100 shown, the fourth sub-optical port 3162 receives the first signal light sent by the second communication device 540 / 550. The first signal light enters the optical circulator 319 from the fourth sub-optical port 3162, is guided by the optical circulator 319 to the first optical port 314, and then is sent to the first communication system 100 through the optical fiber 313 by the first optical port 314.

[0449] For another example, when the second optical module 600 in the second communication system 400 is Figure 9g the second optical module 6110 shown, the first optical port 314 receives the first energy-carrying light sent by the first communication system 100 through the optical fiber 313. The first energy-carrying light can reach the second optical port 316 from the first optical port 314 and is supplied to the second communication device plugged with the second optical module 6110. When the second communication device plugged with the second optical module 6110 is Fig.9eWhen the second communication device is the second communication device 560 as shown, the first energy transmission light provided by the second optical module 6110 is guided by the optical circulator 319 to the photovoltaic PD 515. The photovoltaic PD 515 converts the first energy transmission light into electrical energy and supplies it to the processor 511. At the same time, the MPD 516 monitors the power of this part of the energy transmission light, reports the monitoring result to the processor 511, and supplies the current obtained during the monitoring to the signal LD 611. The processor 511 issues the first signal to the signal LD 611 based on the electrical energy and the monitoring result. Driven by this current, the signal LD 611 converts the first signal into the first signal light. The first signal light is exported by the optical circulator 319 to the second optical module 6110. When the second communication device plugged into the second optical module 6110 is Figure 9f the second communication device 570 as shown, the first energy transmission light provided by the second optical module 6110 is guided by the optical circulator 319 to the optical splitter 631. The optical splitter 631 divides the first energy transmission light into two parts. A larger part is divided to the photovoltaic PD 515, and a smaller part is divided to the signal modulator 632. The photovoltaic PD 515 converts the larger part of the first energy transmission light into electrical energy and supplies it to the processor 511. At the same time, the MPD 516 monitors the power of this part of the energy transmission light, reports the monitoring result to the processor 511, and supplies the current obtained during the monitoring to the signal modulator 632. The processor 511 issues the first signal to the signal modulator 632 based on the electrical energy and the monitoring result. Driven by this current, the signal modulator 632 modulates the first signal onto the smaller part of the first energy transmission light to obtain the first signal light. The first signal light is exported by the optical circulator 319 to the second optical module 6110. The second optical port 316 on the second optical module 6110 receives the first signal light sent by the second communication device 560 / 570. The first signal light reaches the first optical port 314 from the second optical port 316 and is sent to the first communication system 100 through the optical fiber 313 by the first optical port 314.

[0450] For another example, when the second communication device 500 in the second communication system 400 is Figure 9h the second communication device 580 as shown, the difference from the second communication device 540 above is that the first energy transmission light is received through the optical fiber 313 by the first optical port 5171 on the second communication device 580, and the first signal light is sent to the first communication system 100 through the optical fiber 313 by the second optical port 5172 on the second communication device 580. When the second communication device 500 in the second communication system 400 is Figure 9iWhen referring to the second communication device 590 shown, the difference from the second communication device 550 above is that the first energy - transmitting light is received by the first optical port 5171 on the second communication device 590 through the optical fiber 313, and the first signal light is sent by the second optical port 5172 on the second communication device 590 through the optical fiber 313 to the first communication system 100. When the second communication device 500 in the second communication system 400 is Figure 9j the second communication device 5100 shown, the difference from the second communication device 560 above is that both the first energy - transmitting light and the first signal light are transmitted through the optical fiber 313 by the optical port 518 on the second communication device 5100. When the second communication device 500 in the second communication system 400 is Figure 9k the second communication device 5110 shown, the difference from the second communication device 570 above is that both the first energy - transmitting light and the first signal light are transmitted through the optical fiber 313 by the optical port on the second communication device 5110.

[0451] Again, when the second optical module 600 in the second communication system 400 is Fig.10a the second optical module 6120 shown or Fig.10c the second optical module 6140 shown, the difference between the second optical module 6120 and the second optical module 610, and the difference between the second optical module 6140 and the second optical module 620 are both as follows: The above - mentioned first energy - transmitting light is converted into electrical energy by the photovoltaic PD515 in the second optical module 6120 and provided to the processor 311, and provided to the second communication device plugged into the second optical module 6120 through the electrical interface 317. The MPD 516 reports the monitoring result to the processor 311. The processor 311 sends the above - mentioned first signal to the signal LD 611 based on the electrical energy provided by the photovoltaic PD 515 and the monitoring result reported by the MPD 516.

[0452] When the second optical module 600 in the second communication system 400 is Fig.10b the second optical module 6130 shown or Fig.10d the second optical module 6150 shown, the difference between the second optical module 6130 and the second optical module 630, and the difference between the second optical module 6150 and the second optical module 640 are as follows: A relatively large part of the energy - transmitting light split from the above - mentioned first energy - transmitting light by the optical splitter 631 is converted into electrical energy by the photovoltaic PD 515 in the second optical module 6130 and provided to the processor 311, and provided to the second communication device plugged into the second optical module 6130 through the electrical interface. The MPD 516 reports the monitoring result to the processor 311. The processor 311 sends the above - mentioned first signal to the signal modulator 632 based on the electrical energy provided by the photovoltaic PD 515 and the monitoring result reported by the MPD 516.

[0453] When the second optical module 600 in the second communication system 400 is Fig.10e the second optical module 6160 shown in the figure, the difference between the second optical module 6160 and the above-mentioned second optical module 6120, second optical module 6130, second optical module 6140, and second optical module 6150 is that the processor 311 sends the above-mentioned first signal to the optical transmitter, and the MPD 516 also sends the current used to drive the electro-optical conversion to the optical transmitter. The optical transmitter converts the first signal into the above-mentioned first signal light under the drive of this current, and the first signal light is sent to the first communication system 100 through the optical fiber 313 by the third optical port 3121. When the second optical module 600 in the second communication system 400 is Fig.10f the second optical module 6170 shown in the figure, the difference from the second optical module 6160 is that the above-mentioned first signal and current are both sent to the optical transceiver. The optical transceiver converts the first signal into the above-mentioned first signal light.

[0454] The normal power supply stage includes step 1313 and step 1314.

[0455] Step 1313: After the first communication system 100 receives the first signal light, it enters the normal power supply mode, increases the power of the energy transfer light to meet the power demand of the second communication system 400, and obtains the second energy transfer light.

[0456] Step 1314: The first communication system 100 continuously sends the second energy transfer light to the second communication system 400. Specifically, the first communication system 100 converts the first signal light into the first signal d1 through the signal PD or the signal receiver, and the processor of the first communication device 200 or the first optical module 300 resolves the power supply request, and then the processor controls the above-mentioned power supply LD to increase the optical power to generate the second energy transfer light that meets the power demand of the second communication system 400. After the second communication system 400 receives the second energy transfer light through the optical fiber, the photovoltaic PD converts the second energy transfer light into electric energy to supply normal power to the second communication system 400.

[0457] For example, when the first optical module 300 in the first communication system 100 is Figure 2b the first optical module 310 shown in the figure, the first optical port 314 of the first optical module 310 receives the above-mentioned first signal light sent by the second communication system 400 through the optical fiber 313. The signal PD 318 converts the first signal light received by the first optical port 314 into a first signal and sends it to the first communication device 210 plugged into the first optical module 310 through the electrical interface. When the first optical module 300 in the first communication system 100 is Figure 2c the first optical module 320 shown in the figure, the difference from the first optical module 310 is that the above-mentioned first signal light is guided to the signal PD 318 by the optical circulator 319. When the first optical module 300 in the first communication system 100 is Figure 2d When referring to the first optical module 330 shown, the difference from the first optical module 310 is as follows: The second sub-optical port 3142 receives the above-mentioned first signal light sent by the second communication system 400 through the optical fiber 313, and the signal PD 318 converts the first signal light received by the first sub-optical port 3141 into a first signal. When the first optical module 300 in the first communication system 100 is Figure 2e When referring to the first optical module 331 shown, the optical receiver receives the above-mentioned first signal light through the fourth optical port 3122, converts the first signal light into the above-mentioned first signal, and then sends it to the first communication device 210 plugged into the first optical module 331 through the electrical interface 317. When the first optical module 300 in the first communication system 100 is Figure 2f When referring to the first optical module 332 shown, the difference from the first optical module 310 is that the optical transceiver converts the first signal light into the first signal. After the first communication device 210 receives the first signal through the network interface 217, the processor 212 responds to the first signal and controls the energy supply LD 218 to send the above-mentioned second energy transfer light to the first optical module 310 / 320 / 330 / 331 / 332 plugged in. The first optical module 310 / 320 / 330 / 331 / 332 receives the second energy transfer light through the second optical port 316. In the first optical module 310 / 331 / 332, the second energy transfer light directly reaches the first optical port 314 from the second optical port 316, and then is sent to the second communication system 400 through the optical fiber 313 by the first optical port 314. The difference is that in the first optical module 320, the optical circulator 319 guides the second energy transfer light received by the second optical port 316 to the first optical port 314; in the first optical module 330, the second energy transfer light is sent to the second communication system 400 through the optical fiber 313 by the first sub-optical port 3141.

[0458] For another example, when the first optical module 300 in the first communication system 100 is Figure 3b When referring to the first optical module 340 shown, the first optical port 314 receives the above-mentioned first signal light sent by the second communication system 400 through the optical fiber 313. In the first optical module 340, the first signal light reaches the second optical port 316 from the first optical port 314 and is provided to the first communication device 220 plugged in through the second optical port 316. When the first optical module 300 in the first communication system 100 is Figure 3c When referring to the first optical module 341 shown, the difference from the first optical module 340 is that after the first optical signal enters the first optical module 341 from the first optical port 314, it is guided to the second optical port 316 by the optical circulator 319. When the first optical module 300 in the first communication system 100 is Figure 3dWhen referring to the first optical module 342 shown, the difference from the first optical module 340 is that the second sub-optical port 3142 receives the above-mentioned first signal light sent by the second communication system 400 through the optical fiber 313; in the first optical module 342, this first signal light reaches the second optical port 316 from the second sub-optical port 3142. Figure 3a In the first communication device 220 shown, the signal PD 318 converts the first signal light provided by the second optical port 316 into the above-mentioned first signal and sends it to the processor 212. The processor 212 responds to this first signal and sends a second control signal to the first optical modules 340 / 341 / 342 through the network interface 217 to control the first optical modules 340 / 341 / 342 to send the above-mentioned second energy transfer light to the second communication system 400 through the optical fiber. In the first optical modules 340 / 341 / 342, the energy supply LD 218 emits this second energy transfer light in response to the second control signal received by the electrical interface 317. The difference is that in the first optical module 340, the second energy transfer light emitted by the energy supply LD 218 is sent to the second communication system 400 through the optical fiber 313 by the first optical port 314; in the first optical module 341, the second energy transfer light emitted by the energy supply LD 218 is guided by the optical circulator 319 to the first optical port 314, and then sent to the second communication system 400 through the optical fiber 313 by the first optical port 314; in the first optical module 342, the second energy transfer light emitted by the energy supply LD 218 is sent to the second communication system 400 through the optical fiber 313 by the first sub-optical port 3141.

[0459] Again, when the first optical module 300 in the first communication system 100 is Figure 4c the first optical module 350 shown, the first optical port 314 receives the above-mentioned first signal light sent by the second communication system 400 through the optical fiber 313. In the first optical module 350, this first signal light reaches the second optical port 316 from the first optical port 314 and is provided to the plugged-in first communication device 240 (as Figure 4b shown). The optical circulator 319 in the first communication device 240 guides the first signal light transmitted from the second optical port 316 to the signal PD 318. The signal PD 318 converts this first signal light into a first signal and sends it to the processor 212. The processor 212 responds to this first signal and controls the energy supply LD 218 to emit the above-mentioned second energy transfer light. This second energy transfer light is guided by the optical circulator 319 to the position docked with the second optical port 316 of the first optical module 350, so that this second energy transfer light enters the first optical module 350 through the second optical port 316. In the first optical module 350, this second energy transfer light reaches the first optical port 314 and is sent to the second communication system 400 through the optical fiber 313 by the first optical port 314.

[0460] Again, when the first optical module 300 in the first communication system 100 is Figure 4d When the first optical module 360 shown in the figure is involved, the second sub-optical port 3142 receives the above-mentioned first signal light sent by the second communication system 400 through the optical fiber 313. In the first optical module 360, this first signal light reaches the fourth sub-optical port 3162 from the second photon port 3142 and is provided to the plugged-in first communication device 230 (such as Figure 4a shown in the figure). When the first optical module 300 in the first communication system 100 is Figure 4e the first optical module 370 shown in the figure, the first optical port 314 receives the above-mentioned first signal light sent by the second communication system 400 through the optical fiber 313. In the first optical module 370, this first signal light is guided by the optical circulator 319 to the fourth sub-optical port 3162 and is provided to the plugged-in first communication device 230 through the fourth sub-optical port 3162. In the first communication device 230, the signal PD 318 converts the first signal light output from the fourth sub-optical port 3162 into the above-mentioned first signal and sends it to the processor 212. In response to this first signal, the processor 212 controls the energy supply LD 218 to emit the above-mentioned second energy transmission light. This second energy transmission light enters the first optical module 360 / 370 through the third sub-optical port 3161. In the first optical module 360, this second energy transmission light reaches the first sub-optical port 3141 from the third sub-optical port 3161 and is sent to the second communication system 400 through the first sub-optical port 3141 and the optical fiber 313. In the first optical module 370, this second energy transmission light is guided by the optical circulator 319 to the first optical port 314 and is sent to the second communication system 400 through the first optical port 314 and the optical fiber 313.

[0461] For another example, when the first communication device 200 in the first communication system 100 is Figure 5a the first communication device 250 shown in the figure, the optical port 252 receives the above-mentioned first signal light sent by the second communication system 400 through the optical fiber 313. The signal PD 318 converts this first signal light into the above-mentioned first signal and sends it to the processor 212. In response to this first signal, the processor 212 controls the energy supply LD 218 to emit the above-mentioned second energy transmission light. This second energy transmission light is sent to the second communication system 400 through the optical port 251 and the optical fiber 313. When the first communication device 200 in the first communication system 100 is Figure 5bWhen the first communication device 260 shown above is considered, the optical port 261 receives the above-mentioned first signal light transmitted by the second communication system 400 through the optical fiber 313. This first signal light is guided by the optical circulator 319 to the signal PD 318. The signal PD 318 converts this first signal light into the above-mentioned first signal and sends it to the processor 212. In response to this first signal, the processor 212 controls the energy supply LD 218 to emit the above-mentioned second energy transmission light. This second energy transmission light is guided by the optical circulator 319 to the optical port 261 and is sent by the optical port 261 through the optical fiber 313 to the second communication system 400. The first optical module plugged into the first communication device 250 / 260 can be Figure 5c the first optical module 380 shown above. The tail end and the front end of the first optical module 380 are provided with optical ports (openings), and there is also a space inside for the optical fiber connected to the first communication device 250 / 260 to pass through the first optical module 380.

[0462] Again, when the first optical module 300 in the first communication system 100 is Figure 6a the first optical module 390 shown above, the first optical port 314 receives the above-mentioned first signal light transmitted by the second communication system 400 through the optical fiber 313. The signal PD 318 converts this first signal light into the above-mentioned first signal and sends it to the processor 311. In response to this first signal, the processor 311 controls the energy supply LD 218 to emit the above-mentioned second energy transmission light. This second energy transmission light is sent by the first optical port 314 through the optical fiber 313 to the second communication system 400. When the first optical module 300 in the first communication system 100 is Figure 6b or Figure 6c the first optical module 391 / 392 shown above, the difference from the first optical module 390 is that the fourth optical port 3122 receives the above-mentioned first signal light transmitted by the second communication system 400 through the optical fiber 313, and the optical receiver or optical transceiver converts this first signal light into the above-mentioned first signal and sends it to the processor 311.

[0463] To improve the energy supply safety, the power of the energy transmission light can also be increased step by step to a preset power value. This preset power value is the power value at which the energy transmission light meets the electrical energy demand of the second communication system 400.

[0464] For example Fig.13b as shown above, the process of the first communication system 100 supplying energy to the second communication system 400 further includes a power supply start stage.

[0465] During the power supply start-up phase, after the first communication system 100 receives the first signal light, it enters the power supply start-up mode and gradually increases the power of the energy transfer light. For example, assuming that the power of the energy transfer light is 50 mW to meet the power demand of the second communication system 400, and the power of the first energy transfer light is 3 mW, then the light power is increased to generate a second energy transfer light with a power of 5 mW. After that, the power is increased by 5 mW each time. After increasing 9 times in total, the generated energy transfer light can meet the power demand of the second communication system 400. Optionally, the power supply start-up phase includes steps 1321 to 1324.

[0466] Step 1321: The first communication system 100 increases the power of the energy transfer light to obtain a second energy transfer light. This step is similar to step 1313 above.

[0467] Step 1322: The first communication system 100 sends the second energy transfer light to the second communication system 400 through an optical fiber. This step is similar to step 1314 above.

[0468] Since the power of the second energy transfer light does not reach the preset value, that is, the power of the second energy transfer light does not meet the power demand of the second communication system, therefore, the next step is to continue with step 1323.

[0469] Step 1323: The first communication system 100 increases the power of the energy transfer light to obtain the (i + 1)-th energy transfer light. This step is similar to step 1321. For example, in the first communication devices 210 / 230 / 240 / 250 / 260, the processor 212 controls the energy supply LD 218 to emit the (i + 1)-th energy transfer light with a higher power. Or, the first communication device 220 sends a control signal to the first optical modules 340 / 341, and the energy supply LD 218 in the first optical modules 340 / 341 responds to this control signal and emits the (i + 1)-th energy transfer light with a higher power. Or, in the first optical modules 390 / 391 / 392, the processor 311 controls the energy supply LD 218 to emit the (i + 1)-th energy transfer light with a higher power. i is a natural number greater than 1. The initial value of i is 2. Each time step 1323 is executed, the value of i is incremented by 1.

[0470] Step 1324: The first communication system 100 sends the (i + 1)-th energy transfer light through an optical fiber. This step is similar to step 1322.

[0471] When the power of the (i + 1)-th energy transfer light does not reach the preset value, step 1323 is still executed next. When i = n and the power of the (i + 1)-th energy transfer light reaches the preset value, the power supply process enters the normal power supply stage. For example, when the power of the second energy transfer light is 5 mW, increasing by 5 mW each time, and the preset value is 50 mW, step 1323 needs to be executed 9 times in a loop to obtain the third energy transfer light, the fourth energy transfer light, …, the eleventh energy transfer light in sequence, and the powers of these energy transfer lights increase in sequence. When i = 10, the power of the eleventh energy transfer light meets the power demand of the second communication system. Step 1324 needs to be executed 8 times in a loop to send the third energy transfer light, the fourth energy transfer light, …, the tenth energy transfer light to the second communication system in sequence. The power increase of 5 mW each time and the preset value of 50 mW are only for illustrative purposes. For example, the preset value can also be 35 mW, 45 mW, 48 mW, 52 mW, etc., and the power increase each time can also be 4.5 mW, 5.1 mW, etc. Or, the power increase each time may not be the same. For example, the power increase value in the next time can be greater than or less than that in the previous time, and can be set arbitrarily according to actual needs.

[0472] The normal power supply stage includes step 1325.

[0473] Step 1325: The first communication system 100 enters the normal power supply mode and sends the (n + 1)-th energy transfer light. For example, when the power of the second energy transfer light is 5 mW, increasing by 5 mW each time, and the preset power value is 50 mW, this step sends the eleventh energy transfer light. The sending method of the (n + 1)-th energy transfer light is similar to that of the (i + 1)-th energy transfer light described above.

[0474] The generation principles of the above-mentioned first energy transfer light, second energy transfer light, and (i + 1)-th energy transfer light are similar. All the energy transfer lights sent by the first communication system 100 are converted into electrical energy by the second communication system 400 to obtain energy.

[0475] To further improve the power supply safety, at the beginning of the power supply stage, the first communication system 100 can also increase the power of the energy transfer light as needed according to the feedback of the second communication system 400.

[0476] As Fig.13c shown, after the first communication system 100 sends the second energy transfer light at the beginning of the power supply stage, that is, after step 1322, steps 1331 to 1333 are included.

[0477] Step 1331: The second communication system 400 sends the second optical signal to the first communication system 100 for the j-th time to instruct the first communication system 100 to increase the power of the energy transmission optical signal. Specifically, after the second communication system 400 receives the second energy transmission optical signal, the MPD monitors its power and reports the monitoring result to the processor. The processor determines, based on the monitoring result, that the electrical energy demand of the second communication system 400 is not satisfied, and sends a second signal. After being converted into the second optical signal by the electro-optical converter, it is sent to the first communication system 100. The generation and transmission of this second optical signal are similar to those of the first optical signal described above. The initial value of j is 1, and each time step 1331 is executed, the value of j is incremented by 1.

[0478] Step 1332: After the first communication system 100 receives the second optical signal sent by the second communication system for the j-th time, it increases the power of the energy transmission optical signal for the j-th time to obtain the (i + 1)-th energy transmission optical signal, where i is a natural number greater than 1 and j = i - 1. The difference between this step and step 1323 described above is that, in response to this second optical signal, the power of the energy transmission optical signal is increased. The method by which the first communication system 100 receives and responds to this second optical signal is similar to the method of receiving and responding to the first optical signal described above.

[0479] Step 1333: The first communication system 100 sends the (i + 1)-th energy transmission optical signal to the second communication system 400 through an optical fiber. This step is similar to step 1324 described above.

[0480] After the second communication system 400 receives the (i + 1)-th energy transmission optical signal, it determines whether the electrical energy demand of the second communication system 400 is satisfied. If not, the next step is to continue executing step 1331. When i = n, the power of the (i + 1)-th energy transmission optical signal satisfies the electrical energy demand of the second communication system 400, and the next step is to enter the normal power supply stage.

[0481] Correspondingly, the normal power supply stage includes step 1334 and step 1325.

[0482] Step 1334: The second communication system 400 sends out a third signal. After being converted into the third optical signal by the electro-optical converter, it is sent to the first communication system 100. The generation and transmission of this third optical signal are similar to those of the second optical signal described above.

[0483] Step 1325: After the first communication system 100 receives the third optical signal, it enters the normal power supply mode and continues to send the (n + 1)-th energy transmission optical signal to the second communication system 400. The way the first communication system 100 receives this third optical signal and converts it into the above-mentioned third signal is similar to the way it receives the above-mentioned second optical signal and converts the second optical signal into the above-mentioned second signal. After that, the first communication system 100 continues to send the (n + 1)-th energy transmission optical signal in response to this third signal. For example, in the first communication devices 210 / 230 / 240 / 250 / 260, the processor 212 controls the energy supply LD 218 to continue emitting the (n + 1)-th energy transmission optical signal in response to this third signal. Or, the first communication device 220 sends a control signal to the first optical modules 340 / 341 in response to this third signal, and the energy supply LD 218 in the first optical modules 340 / 341 continues to emit the (n + 1)-th energy transmission optical signal in response to this control signal. Or, in the first optical modules 390 / 391 / 392, the processor 311 controls the energy supply LD 218 to continue emitting the (n + 1)-th energy transmission optical signal in response to this third signal. The way the first communication system 100 continues to send the (n + 1)-th energy transmission optical signal is similar to the way it sends the (i + 1)-th energy transmission optical signal mentioned above.

[0484] To further improve the energy supply safety, the process of the first communication system 100 supplying energy to the second communication system 400 may further include a power-off protection operation. For example Fig.13d As shown, the power-off protection includes Step 1341 and Step 1342.

[0485] Step 1341: In case of an abnormality, the second communication system 400 stops emitting the first optical signal. Specifically, the first optical signal is a heartbeat signal. Under normal circumstances, the second communication system 400 sends the first optical signal to the first communication system 100 at a certain period or frequency. The first communication system 100 will continuously send the energy transmission optical signal to the second communication system 400 when it receives the first optical signal at this period or frequency according to the predetermined energy supply protocol. When the second communication system 400 detects an abnormality, for example, when the optical fiber breaks, the monitoring result of the MPD is that the current suddenly weakens to below the threshold, and the processor stops emitting the first optical signal according to this situation. Or, for example, when the second communication system 400 fails and causes a sudden increase in current, it stops emitting the first optical signal.

[0486] Specifically, for example, when the second communication device 500 in the second communication system 400 is Figure 7bWhen the second communication device 510 as shown is involved, when there is an optical fiber abnormality (such as the supply current dropping below the threshold) or an abnormality in the second communication system 400 (such as a surge in current in the circuit of the second communication system 400, etc.), the processor 511 stops sending the above-mentioned first signal to the second optical module. In this case, in the second optical modules 610 / 620 / 630 / 640 / 641 / 642 plugged into the second communication device 510, the electrical interface 317 cannot receive this first signal. In the second optical modules 610 / 620, when the electrical interface cannot receive this first signal, the signal LD 611 stops sending the above-mentioned first signal light. In the second first optical port 314 / second sub-optical port 3142, when the signal LD 611 stops sending this first signal light, it stops sending this first signal light to the first communication system 100 through the optical fiber 313. In the second optical modules 630 / 640, when the electrical interface 317 cannot receive this first signal, the signal modulator 632 stops sending the above-mentioned first signal light. In the first optical port 314 / second sub-optical port 3142, when the signal modulator 632 stops sending this first signal light, it stops sending this first signal light to the first communication system 100 through the optical fiber 313. In the second optical modules 641 / 642, when the electrical interface 317 cannot receive this first signal, the optical transmitter / optical transceiver stops sending the above-mentioned first signal light. In the third optical port 3121, when the optical transmitter stops sending this first signal light, it stops sending this first signal light to the first communication system 100 through the optical fiber 313. For another example, when the second communication device 500 in the second communication system 400 is Figure 8a the second communication device 520 as shown, when the above-mentioned abnormality occurs, the processor 511 stops sending the above-mentioned first signal to the signal LD 611. When the processor 511 stops sending this first signal, the signal LD 611 stops sending the above-mentioned first signal light to the second optical module. In the second optical modules 650 / 660 plugged into the second communication device 520, when the signal LD 611 stops sending this first signal light, no such first signal light enters the second optical port 316. Correspondingly, the first optical port 314 / second sub-optical port 3142 stops sending this first signal light to the first communication system 100. Again, when the second communication device 500 in the second communication system 400 is Figure 8dWhen the second communication device 530 shown is involved, in the above abnormal situation, the processor 511 stops sending the above first signal to the signal modulator 632. When the processor 511 stops sending this first signal, the signal modulator 632 stops sending the above first signal light to the second optical module. Among the second optical modules 670 / 680 plugged into the second communication device 530, when the signal modulator 632 stops sending this first signal light, the first signal light does not enter the second optical port 316. Correspondingly, the first optical port 314 / second sub-optical port 3142 stops sending this first signal light to the first communication system 100. For another example, when the second communication device 500 in the second communication system 400 is Figure 9a the second communication device 540 shown, or Figure 9b the second communication device 550 shown, or Fig.9e the second communication device 560 shown, or Figure 9f the second communication device 570 shown, in the above abnormal situation, the processor 511 stops sending the above first signal to the signal LD 611 / signal modulator 632. When the processor 511 stops sending this first signal, the signal LD 611 / signal modulator 632 stops sending the above first signal light to the second optical module. Among the second optical modules 690 / 6100 plugged into the second communication device 540 / 550, the fourth sub-optical port 3162 does not have this first signal light enter. Correspondingly, the second sub-optical port 3142 / first optical port 314 stops sending this first signal light to the first communication system 100. Among the second optical modules 6110 plugged into the second communication device 560 / 570, the second optical port 316 does not have this first signal light enter. Correspondingly, the first optical port 314 stops sending this first signal light to the first communication system 100. For another example, when the second communication device 500 in the second communication system 400 is the second communication device 580 (as shown in Figure 9h ), the second communication device 590 (as shown in Figure 9i ), the second communication device 5100 (as shown in Figure 9j ), the second communication device 5110 (as shown in Figure 9k ), in the above abnormal situation, the processor 511 stops sending the above first signal to the signal LD 611 / signal modulator 632. When the processor 511 stops sending this first signal, the signal LD 611 / signal modulator 632 stops sending the above first signal light. Correspondingly, the second optical port 5172 / optical port 518 stops sending this first signal light to the first communication system 100 when the signal LD 611 / signal modulator 632 stops sending this first signal light. For yet another example, when the second optical module 600 in the second communication system 400 is the second optical module 6120 (as shown in Fig.10a ), the second optical module 6130 (as shown in Fig.10bas shown) / the second optical module 6140 (such as Fig.10c as shown) / the second optical module 6150 (such as Fig.10d as shown) / the second optical module 6160 (such as Fig.10e as shown) / the second optical module 6170 (such as Fig.10f as shown), when an abnormal situation occurs, the processor 311 stops sending the above-mentioned first signal to the signal LD 611 / signal modulator 632 / optical transmitter / optical transceiver. When the signal LD 611 / signal modulator 632 / optical transmitter / optical transceiver stops receiving the first signal sent by the processor 311, it stops sending the above-mentioned first optical signal. Correspondingly, the first optical port 314 / second sub-optical port 3142 / third optical port 3121 stops sending the first optical signal to the first communication system 100 when the signal LD 611 / signal modulator 632 / optical transmitter / optical transceiver stops sending the first optical signal.

[0487] Step 1342: When the first communication system 100 does not receive the first optical signal within a preset time period, it stops sending the energy transmission optical signal. In this way, when the optical fiber connecting the first communication system 100 and the second communication system 400 breaks due to external force under normal energy supply conditions, the first communication system 100 for energy supply can respond quickly, stop the emission of high-power laser, avoid accidental injury to people caused by the laser, and effectively improve the energy supply safety.

[0488] For example, when the first optical module 300 in the first communication system 100 is the first optical module 310 (such as Figure 2b as shown) / the first optical module 320 (such as Figure 2c as shown) / the first optical module 330 (such as Figure 2d as shown) / the first optical module 331 (such as Figure 2e as shown) / the first optical module 332 (such as Figure 2fWhen the first optical port 314 / second sub-optical port 3142 / fourth optical port 3122 / third optical port 3121, as shown, stops receiving the first signal light when the second communication system 400 stops transmitting the first signal light. Correspondingly, the signal PD 318 / optical receiver / optical transceiver stops sending the first signal to the plugged-in first communication device 210 through the electrical interface 317. When the processor 212 in the communication device 210 does not receive the first signal within a preset time period, it controls the power supply LD 218 to stop sending the energy transmission light to the first optical module. When the first optical module 310 / 320 / 330 / 331 / 332 plugged into the first communication device 210 stops receiving the energy transmission light from the communication device 210, the second optical port 316 stops receiving the energy transmission light. When there is no energy transmission light entering the second optical port 316, the first optical port 314 / first sub-optical port 3141 stops sending the energy transmission light to the second communication system 400. For another example, when the first optical module 300 in the first communication system 100 is the first optical module 340 (as Figure 3b shown) / the first optical module 341 (as Figure 3c shown) / the first optical module 342 (as Figure 3d shown), the first optical port 314 / second sub-optical port 3142 stops receiving the first signal light when the second communication system 400 stops transmitting the first signal light. Correspondingly, the second optical port 316 stops providing the first signal light to the first communication device 220 plugged with the first optical module 340 / 341 / 342. When the signal PD 318 in the first communication device 220 stops receiving the first signal light provided by the second optical port 316, it stops sending the first signal to the processor 212. When the processor 212 does not receive the first signal within a preset time period, it sends a control signal to the first optical module 340 / 341 / 342 through the network interface 217 to control the first optical module 340 / 341 / 342 to stop sending the energy transmission light to the second communication system. In the first optical module 340 / 341 / 342, the power supply LD 218 stops sending the energy transmission light in response to the control signal received by the electrical interface 317. When the power supply LD 218 stops sending the energy transmission light, the first optical port 314 / first sub-optical port 3141 stops sending the energy transmission light to the second communication system 400. For another example, when the first optical module 300 in the first communication system 100 is Figure 4cWhen the first optical module 350 shown is involved, when the second communication system 400 stops transmitting the first signal light, the first optical port 314 stops receiving the first signal light. Correspondingly, the second optical port 316 stops providing the first signal light to the first communication device 240 plugged into the first optical module 350. The signal PD 318 in the first communication device 240 stops transmitting the first signal to the processor 212 when the second optical port 316 stops providing the first signal light. When the processor 212 does not receive the first signal within a preset time period, it controls the power supply LD 218 to stop emitting energy transmission light to the optical circulator 319. No energy transmission light in the optical circulator 319 is guided to the second optical port 316 of the first optical module 350. The first optical port 314 stops transmitting energy transmission light to the second communication system 400 when no energy transmission light enters the second optical port 316. For another example, when the first optical module 300 in the first communication system 100 is the first optical module 360 (as Figure 4d shown) / the first optical module 370 (as Figure 4e shown), the second sub-optical port 3142 / the first optical port 314 stops receiving the first signal light when the second communication system 400 stops transmitting the first signal light. Correspondingly, the fourth sub-optical port 3162 stops providing the first signal light to the first communication device 230 plugged into the first optical module 360 / 370. The signal PD 318 in the first communication device 230 stops transmitting the first signal to the processor 212 when the fourth sub-optical port 3162 stops providing the first signal light. When the processor 212 does not receive the first signal within a preset time period, it controls the power supply LD 218 to stop emitting energy transmission light to the first optical module 360 / 370. No energy transmission light enters the third sub-optical port 3161 in the first optical module 360 / 370 when the power supply LD 218 is controlled to stop emitting energy transmission light. The first sub-optical port 3141 / the first optical port 314 stops transmitting energy transmission light to the second communication system 400 when no energy transmission light enters the third sub-optical port 3161. For yet another example, when the first communication device 200 in the first communication system 100 is the first communication device 250 as Figure 5a shown, the optical port 252 stops receiving the first signal light when the second communication system 400 stops transmitting the first signal light. The signal PD 318 stops transmitting the first signal to the processor 212 when the optical port 252 does not receive the first signal light. When the processor 212 does not receive the first signal within a preset time period, it controls the power supply LD 218 to stop emitting energy transmission light. The optical port 251 stops transmitting energy transmission light to the second communication system 400 when the power supply LD 218 is controlled to stop emitting energy transmission light. When the first communication device 200 in the first communication system 100 is Figure 5bWhen referring to the first communication device 260 shown, the difference from the first communication device 250 is that the optical port 261 stops receiving the first optical signal, and the optical circulator 319 stops guiding the first optical signal to the signal PD 318. When the energy-supplying LD 218 stops emitting the energy-transmitting light, the optical circulator 319 stops guiding the energy-transmitting light to the optical port 261, and the optical port 261 stops sending the energy-transmitting light to the second communication system 400. Correspondingly, for the first optical module 380 plugged into the first communication device 260, the optical fiber 313 passing through it stops transmitting the energy-transmitting light to the second communication system 400. For another example, when the first optical module 300 of the first communication system 100 is the first optical module 390 / 391 / 392, the first optical port 314 / fourth optical port 3122 stops receiving the first optical signal when the second communication system 400 stops sending the above-mentioned first optical signal. In this case, the signal PD 318 / optical receiver / optical transceiver stops sending the above-mentioned first signal to the processor 311. When the processor 311 does not receive the first signal within a preset time period, it controls the energy-supplying LD 218 to stop emitting the energy-transmitting light. Correspondingly, the optical port 314 stops sending the energy-transmitting light to the second communication system 400.

[0489] Another feasible way of power-off protection is that in an abnormal situation, the second communication system 400 sends a fourth optical signal to the first communication system 100 to instruct the first communication system 100 to stop sending the energy-transmitting light, so as to achieve the purpose of safety protection.

[0490] For example, when the second communication device 500 in the second communication system 400 is Figure 7b the second communication device 510 shown, the processor 511 sends a fourth signal to the second optical module in the above abnormal situation to instruct the first communication system 100 to stop sending the energy-transmitting light. In this case, among the second optical modules 610 / 620 / 630 / 640 / 641 plugged into the second communication device 510, the electrical interface 317 receives the fourth signal. In the second optical modules 610 / 620, the signal LD 611 converts the fourth signal received by the electrical interface 317 into the above-mentioned fourth optical signal and sends it to the first optical port 314 / second sub-optical port 3142. The first optical port 314 / second sub-optical port 3142 sends the fourth optical signal to the first communication system 100 through the optical fiber 313. In the second optical modules 630 / 640, the signal modulator 632 modulates the fourth signal received by the electrical interface 317 onto the energy-transmitting light to obtain the fourth optical signal. The fourth optical signal is sent to the first communication system 100 by the first optical port 314 / second sub-optical port 3142 through the optical fiber 313. In the second optical module 641, the optical transmitter converts the fourth signal received by the electrical interface 317 into the above-mentioned fourth optical signal, and the fourth optical signal is sent to the first communication system 100 by the third optical port 3121 through the optical fiber 313.

[0491] For another example, when the second communication device 500 in the second communication system 400 is Figure 8a the second communication device 520 shown in the figure, in the above abnormal situation, the processor 511 sends the above fourth signal to the signal LD 611. The signal LD 611 converts the fourth signal into the above fourth signal light and sends it to the optical module. In the second optical modules 650 / 660 plugged on the second communication device 520, the fourth signal light enters from the second optical port 316 and reaches the first optical port 314 / second sub-optical port 3142. The first optical port 314 / second sub-optical port 3142 sends the fourth signal light to the first communication system 100 through the optical fiber 313.

[0492] For another example, when the second communication device 500 in the second communication system 400 is Figure 8d the second communication device 530 shown in the figure, in the above abnormal situation, the processor 511 sends the above fourth signal to the signal modulator 632. The signal modulator 632 converts the fourth signal into the above fourth signal light and sends it to the second optical module. In the second optical modules 670 / 680 plugged on the second communication device 530, the fourth signal light enters from the second optical port 316 and reaches the first optical port 314 / second sub-optical port 3142. The first optical port 314 / second sub-optical port 3142 sends the fourth signal light to the first communication system 100 through the optical fiber 313.

[0493] For another example, when the second communication device 500 in the second communication system 400 is the second communication devices 540 / 550 / 560 / 570, in the above abnormal situation, the processor 511 sends the above fourth signal to the signal LD 611 / signal modulator 632. The signal LD 611 / signal modulator 632 converts the fourth signal into the above fourth signal light and sends it to the second optical module. In the second optical modules 690 / 6100 plugged on the second communication devices 540 / 550, the fourth signal light enters from the fourth sub-optical port 3162 and reaches the second sub-optical port 3142 / first optical port 314. The second sub-optical port 3142 / first optical port 314 sends the fourth signal light to the first communication system 100 through the optical fiber 313. In the second optical module 6110 plugged on the second communication devices 560 / 570, the fourth signal light enters from the second optical port 316 and reaches the first optical port 314. The first optical port 314 sends the fourth signal light to the first communication system 100 through the optical fiber 313.

[0494] For another example, when the second communication device 500 in the second communication system 400 is the second communication device 580 / 590 / 5100 / 5110, the processor 511 sends the above-mentioned fourth signal to the signal LD 611 / signal modulator 632 in the above abnormal situation. The signal LD 611 / signal modulator 632 converts the fourth signal into the above-mentioned fourth signal light. The fourth signal light reaches the second optical port 5172 / optical port 518, and is sent from the second optical port 5172 / optical port 518 to the first communication system 100 through the optical fiber 313.

[0495] For yet another example, when the second optical module 600 in the second communication system 400 is the second optical module 6120 / 6130 / 6140 / 6150 / 6160 / 6170, the processor 311 sends the above-mentioned fourth signal to the signal LD 611 / signal modulator 632 / optical transmitter / optical transceiver in the above abnormal situation. The signal LD 611 / signal modulator 632 / optical transmitter / optical transceiver converts the fourth signal into the above-mentioned fourth signal light, and sends it to the first optical port 314 / second sub-optical port 3142 / third optical port 3121. The first optical port 314 / second sub-optical port 3142 / third optical port 3121 sends the fourth signal light to the first communication system 100 through the optical fiber 313.

[0496] Correspondingly, for example, when the first optical module 300 in the first communication system 100 is the first optical module 310 / 320 / 330 / 331 / 332, the first optical port 314 / second sub-optical port 3142 / fourth optical port 3122 / third optical port 3121 receives the fourth signal light through the optical fiber 313. The signal PD 318 / optical receiver / optical transceiver converts the fourth signal light into the above-mentioned fourth signal, and sends it to the plugged first communication device 210 through the electrical interface 317. The processor 212 in the first communication device 210 controls the power supply LD 218 to stop sending the energy transmission light to the first optical module in response to the fourth signal. The second optical port 316 in the first optical module 310 / 320 / 330 / 331 / 332 does not have the energy transmission light entering and reaching the first optical port 314 / first sub-optical port 3141 when the first communication device 210 stops sending the energy transmission light. The first optical port 314 / first sub-optical port 3141 stops sending the energy transmission light to the second communication system 400.

[0497] For another example, when the first optical module 300 in the first communication system 100 is the first optical module 340 / 341 / 342, the first optical port 314 / second sub-optical port 3142 receives the fourth signal light through the optical fiber 313. The fourth signal light reaches the second optical port 316 and reaches the plugged first communication device 220 through the second optical port 316. The signal PD 318 in the first communication device 220 converts the fourth signal light provided by the second optical port 316 into the above-mentioned fourth signal and provides it to the processor 212. In response to the fourth signal, the processor 212 sends a control signal to the first optical module 340 / 341 / 342 through the network interface 217 to control the first optical module 340 / 341 / 342 to stop sending energy transmission light to the second communication system. In the first optical module 340 / 341 / 342, the energy supply LD 218 stops emitting energy transmission light in response to the control signal received by the electrical interface 317. The first optical port 314 / first sub-optical port 3141 stops sending energy transmission light to the second communication system 400 when the energy supply LD 218 stops emitting energy transmission light.

[0498] For yet another example, when the first optical module 300 in the first communication system 100 is Figure 4c the first optical module 350 as shown, the first optical port 314 receives the fourth signal light through the optical fiber 313. The fourth signal light reaches the second optical port 316 and reaches the plugged first communication device 240 through the second optical port 316. The signal PD 318 in the first communication device 240 converts the fourth signal light into the above-mentioned fourth signal and provides it to the processor 212. In response to the fourth signal, the processor 212 controls the energy supply LD 218 to stop sending energy transmission light to the optical circulator 319. No energy transmission light in the optical circulator 319 is guided to the second optical port 316 of the first optical module 350. The first optical port 314 stops sending energy transmission light to the second communication system 400 when no energy transmission light enters the second optical port 316.

[0499] For another example, when the first optical module 300 in the first communication system 100 is the first optical module 360 / 370, the second sub-optical port 3142 / first optical port 314 receives the fourth signal light through the optical fiber 313. The fourth signal light reaches the fourth sub-optical port 3162 and reaches the plugged-in first communication device 230 through the fourth sub-optical port 3162. The signal PD 318 in the first communication device 230 converts the fourth signal light into the above-mentioned fourth signal and provides it to the processor 212. In response to the fourth signal, the processor 212 controls the energy supply LD 218 to stop emitting the energy transmission light to the first optical module 360 / 370. In the third sub-optical port 3161 of the first optical module 360 / 370, no energy transmission light enters when the energy supply LD 218 stops emitting the energy transmission light. The first sub-optical port 3141 / first optical port 314 stops transmitting the energy transmission light to the second communication system 400 when no energy transmission light enters the third sub-optical port 3161.

[0500] For another example, when the first communication device 200 in the first communication system 100 is Figure 5a the first communication device 250 as shown, the optical port 252 receives the fourth signal light through the optical fiber 313. The signal PD 318 converts the fourth signal light into the above-mentioned fourth signal and provides it to the processor 212. In response to the fourth signal, the processor 212 controls the energy supply LD 218 to stop emitting the energy transmission light. The optical port 251 stops transmitting the energy transmission light to the second communication system 400 when the energy supply LD 218 stops emitting the energy transmission light.

[0501] For another example, when the first communication device 200 in the first communication system 100 is Figure 5b the first communication device 260 as shown, the difference from the first communication device 250 is that the optical port 261 receives the fourth signal light through the optical fiber 313, and the optical circulator 319 guides the fourth signal light to the signal PD 318. When the energy supply LD 218 stops emitting the energy transmission light, the optical circulator 319 stops guiding the energy transmission light to the optical port 261, and the optical port 261 stops transmitting the energy transmission light to the second communication system 400. For the first optical module 380 plugged into the second communication device 260, the optical fiber 313 passing through it stops transmitting the energy transmission light to the second communication system 400.

[0502] For another example, when the first optical module 300 of the first communication system 100 is the first optical module 390 / 391 / 392, the first optical port 314 / fourth optical port 3122 receives the fourth signal light through the optical fiber 313. The signal PD 318 / optical receiver / optical transceiver converts the fourth signal light into the above-mentioned fourth signal and provides it to the processor 311. In response to the fourth signal, the processor 311 controls the energy supply LD 218 to stop emitting the energy transmission light. Accordingly, the optical port 314 stops transmitting the energy transmission light to the second communication system 400.

[0503] When the first communication system 100 stops sending the energy-transmitting light to the second communication system 400, the second communication system 400 stops receiving the energy-transmitting light to obtain energy.

[0504] For example, when the second optical module 600 in the second communication system 400 is Figure 7c the second optical module 610 shown in the figure, when the first communication system 100 stops sending the energy-transmitting light, the first optical port 314 stops receiving the energy-transmitting light. No energy-transmitting light enters the optical circulator 319 through the first optical port 314, and no energy-transmitting light is guided to the second optical port 316. The second optical port 316 stops providing the energy-transmitting light for the second communication device 510 plugged into the second optical module 610. The second communication device 510 stops obtaining energy from the first communication system 100. When the second optical module 600 is Figure 7d the second optical module 620 shown in the figure, the difference from the second opti...

Claims

1. An energy supply method, characterized in that, Including: The first communication system sends first energy - transmitting light to the second communication system through an optical fiber, and the first energy - transmitting light is used to provide energy to the second communication system; The first communication system receives a first signal light sent by the second communication system, and the generation and transmission of the first signal light are based on the first energy - transmitting light; In response to the first signal light, the first communication system sends second energy - transmitting light to the second communication system, and the power of the second energy - transmitting light is greater than the power of the first energy - transmitting light.

2. The method according to claim 1, characterized in that, After the first communication system sends the second energy - transmitting light to the second communication system, it further includes: Sending the (i + 1) - th energy - transmitting light to the second communication system. Each time the (i + 1) - th energy - transmitting light is sent, the value of i is incremented by 1 until i = n. Here, i is a natural number greater than 1, and the power of the (n + 1) - th energy - transmitting light meets the electrical energy demand of the second communication system. As the value of i increases, the power of the (i + 1) - th energy - transmitting light increases successively.

3. The method according to claim 2, wherein After the first communication system sends the second energy - transmitting light to the second communication system, it further includes: Receiving m times of second signal lights sent by the second communication system. The second signal lights are used to indicate an increase in the power of the energy - transmitting light, where m = n - 1; Sending the (i + 1) - th energy - transmitting light to the second communication system includes: in response to the second signal light received for the j - th time, sending the (i + 1) - th energy - transmitting light to the second communication system, where j = i - 1.

4. The method according to any one of claims 1 to 3, characterized in that, After the first communication system sends the second energy - transmitting light to the second communication system, it further includes: Receiving a third signal light sent by the second communication system. The third signal light is used to indicate that the currently sent energy - transmitting light meets the electrical energy demand; In response to the third signal light, determining that the currently sent energy - transmitting light meets the electrical energy demand of the second communication system and continuously sending the currently sent energy - transmitting light.

5. The method according to any one of claims 1 to 4, characterized in that, The first signal light is a heartbeat signal. When the first communication system does not receive the first signal light within a preset time period, it stops sending energy - transmitting light to the second communication system.

6. The method according to any one of claims 1 to 4, characterized in that After the first communication system sends the second energy - transmitting light to the second communication system, it further includes: Receiving a fourth signal light sent by the second communication system. The fourth signal light is used to indicate stopping the sending of energy - transmitting light; In response to the fourth signal light, stopping sending energy - transmitting light to the second communication system.

7. A first communication device, characterized in that, Including A processor and a memory. The memory includes instructions. The processor reads and executes the instructions, causing the first communication device to perform the following operations: Sending first energy - transmitting light to the second communication system through an optical fiber. The first energy - transmitting light is used to provide energy to the second communication system; In response to a first signal, sending second energy - transmitting light to the second communication system through the optical fiber. The first signal is obtained from the first signal light received from the second communication system through the optical fiber. The generation and transmission of the first signal light are based on the first energy - transmitting light, and the power of the second energy - transmitting light is greater than the power of the first energy - transmitting light.

8. The communication device according to claim 7, wherein The first communication device is electrically connected to a first optical module. The first optical module is connected to the second communication system through the optical fiber. The first communication device further includes an electro-optical converter, which is connected to the processor. The optical output of the electro-optical converter is docked with the end optical port of the first optical module; The processor is configured to control the electro-optical converter to emit the first energy transmission light to the first optical module through the end optical port; The processor is further configured to, through the electrical connection, in response to the first signal obtained from the first signal light received by the first optical module through the optical fiber, control the electro-optical converter to emit the second energy transmission light to the first optical module through the end optical port; The first optical module sends the first energy transmission light and the second energy transmission light to the second communication system through the optical fiber.

9. The communication device according to claim 7, wherein, The first communication device is electrically connected to a first optical module. The first optical module is connected to the second communication system through the optical fiber. The first communication device further includes an opto-electric converter, which is connected to the processor. The optical input of the opto-electric converter is docked with the end optical port of the first optical module; The processor is configured to send a first control signal to the first optical module through the electrical connection. The first control signal is used to instruct the first optical module to send the first energy transmission light to the second communication system through the optical fiber; The opto-electric converter is configured to obtain, through the end optical port, the first signal light received by the first optical module through the optical fiber, convert the first signal light into the first signal, and send the first signal to the processor; The processor is further configured to, in response to the first signal, send a second control signal to the first optical module through the electrical connection. The second control signal is used to instruct the first optical module to send the second energy transmission light to the second communication system through the optical fiber.

10. The communication device according to claim 7, wherein The first communication device is electrically connected to a first optical module. The first optical module is connected to the second communication system through the optical fiber. The first communication device further includes an electro-optical converter and an opto-electric converter; both the electro-optical converter and the opto-electric converter are connected to the processor. The optical output of the electro-optical converter and the optical input of the opto-electric converter are respectively docked with the end optical port of the first optical module; The processor is configured to control the electro-optical converter to emit the first energy transmission light to the first optical module through the end optical port; The opto-electric converter is configured to obtain, through the end optical port, the first signal light received by the first optical module through the optical fiber, convert the first signal light into the first signal, and send the first signal to the processor; The processor is further configured to, in response to the first signal, control the electro-optical converter to send the second energy transmission light to the first optical module through the end optical port; The first optical module sends the first energy transmission light and the second energy transmission light to the second communication system through the optical fiber.

11. The communication device according to claim 7, wherein, The first communication device further includes an electro-optical converter, an opto-electronic converter, and an optical port for connecting the optical fiber. The processor is respectively connected to the electro-optical converter and the opto-electronic converter. The optical output of the electro-optical converter and the optical input of the opto-electronic converter are docked to the optical port, and the optical fiber is connected to the second communication system; The processor is configured to control the electro-optical converter to emit the first energy transmission light to the optical port; The optical port is configured to send the first energy transmission light to the second communication system through the optical fiber, and receive the first signal light sent by the second communication system through the optical fiber; The opto-electronic converter is configured to convert the first signal light into the first signal; The processor is further configured to, in response to the first signal, control the electro-optical converter to emit the second energy transmission light to the optical port; The optical port is further configured to send the second energy transmission light to the second communication system through the optical fiber.

12. A first optical module, characterized in that, It includes a first optical port, and the first optical port is configured to connect to a second communication system through an optical fiber; The first optical port is further configured to send a first energy transmission light to the second communication system through the optical fiber, where the first energy transmission light is used to provide energy to the second communication system, and receive a first signal light sent by the second communication system through the optical fiber, where the generation and transmission of the first signal light are based on the first energy transmission light, and send a second energy transmission light to the second communication system through the optical fiber, where the generation of the second energy transmission light responds to the first signal light, and the power of the second energy transmission light is greater than that of the first energy transmission light.

13. The optical module according to claim 12, wherein The first optical module further includes a second optical port, an opto-electronic converter, and an electrical interface. The electrical interface is used to be electrically connected to the first communication device. The second optical port is used to dock with the first communication device. The optical input of the opto-electronic converter is docked to the first optical port, and the output end is connected to the electrical interface. The first energy transmission light and the second energy transmission light can reach the first optical port through the second optical port; The opto-electronic converter is configured to convert the first signal light into a first signal and send the first signal to the first communication device through the electrical interface.

14. The optical module according to claim 12, characterized in that, The first optical module further includes an electrical interface, an electro-optical converter, and a second optical port. The electrical interface is connected to the input end of the electro-optical converter. The electrical interface is used to be electrically connected to the first communication device. The second optical port is used to dock with the first communication device. The first signal light can reach the first communication device through the second optical port; The electro-optical converter is configured to receive a first control signal sent by the first communication device through the electrical interface, and in response to the first control signal, emit the first energy transmission light to the first optical port, where the first control signal is used to instruct the optical module to send the first energy transmission light to the second communication system; The electro-optical converter is further configured to receive a second control signal sent by the first communication device through the electrical interface, and in response to the second control signal, emit the second energy transmission light to the first optical port.

15. The optical module according to claim 12, wherein The first optical module further includes a second optical port for docking with the first communication device, and the first signal light can reach the second optical port through the first optical port; The second optical port is used for receiving the first energy transmission light and the second energy transmission light sent by the first communication device, and providing the first signal light to the first communication device. The first energy transmission light and the second energy transmission light can reach the first optical port.

16. The optical module according to claim 12, wherein The first optical module further includes an electrical interface, a processor, an electro-optical converter, and an opto-electrical converter. The electrical interface is used for electrically connecting with the first communication device. The processor is connected to the electro-optical converter and the opto-electrical converter. The optical outlet of the electro-optical converter and the optical inlet of the opto-electrical converter are docked with the first optical port. The processor, the electro-optical converter, and the opto-electrical converter are connected to the electrical interface, and the processor, the electro-optical converter, and the opto-electrical converter obtain electrical energy from the first communication device through the electrical interface; The processor is used to control the electro-optical converter to emit the first energy transmission light to the first optical port based on the electrical energy; The opto-electrical converter is used to convert the first signal light into the first signal based on the electrical energy obtained through the electrical interface; The processor is further used to control the electro-optical converter to emit the second energy transmission light to the first optical port in response to the first signal based on the electrical energy obtained through the electrical interface.

17. A first communication system, characterized in that, Comprising the first communication device according to any one of claims 7 to 11 above, and the first optical module according to any one of claims 12 to 16 above, the first optical module is plugged into the first communication device, and the first communication device provides electrical energy for the first optical module.

18. A power receiving method, characterized in that, Comprising: The second communication system receives the first energy transmission light sent by the first communication system through an optical fiber, and the first energy transmission light is used to provide energy for the second communication system; The second communication system generates the first signal light based on the first energy transmission light, and sends the first signal light to the first communication system based on the first energy transmission light; Receiving the second energy transmission light sent by the first communication system in response to the first signal light, the power of the second energy transmission light is greater than that of the first energy transmission light, and the second communication system obtains energy through the second energy transmission light.

19. The method according to claim 18, characterized in that, After receiving the second energy transmission light sent by the first communication system in response to the first signal light, it further includes: The second communication system receives the (i + 1)-th energy transmission light sent by the first communication system. Each time the (i + 1)-th energy transmission light is received, the value of i is incremented by 1 until i = n. The power of the (n + 1)-th energy transmission light meets the electrical energy requirement of the second communication system. As the value of i increases, the power of the (i + 1)-th energy transmission light increases sequentially, and the second communication system obtains energy from the (i + 1)-th energy transmission light.

20. The method according to claim 19, wherein After receiving the second energy transmission light sent by the first communication system in response to the first signal light, it further includes: When the energy transmission light sent by the first communication system does not meet the power demand of the second communication system, a second signal light is sent to the first communication system, where the second signal light is used to instruct the first communication system to increase the power of the energy transmission light, and the (i + 1)-th energy transmission light is obtained by the first communication system in response to the second signal light.

21. The method according to any one of claims 18 to 20, characterized in that, After receiving the second energy transmission light sent by the first communication system in response to the first signal light, it further includes: when the energy transmission light sent by the first communication system meets the power demand of the second communication system, a third signal light is sent to the first communication system, where the third signal light is used to indicate that the currently sent energy transmission light meets the power demand; After receiving the second energy transmission light sent by the first communication system in response to the first signal light, it further includes: Receiving the currently sent energy transmission light continuously sent by the first communication system in response to the third signal light, and continuously obtaining energy through the currently sent energy transmission light.

22. The method according to any one of claims 18 to 21, characterized in that The first signal light is a heartbeat signal. After the second communication system detects an abnormality, it stops sending the first signal light to the first communication system; The method further includes: when the first communication system stops sending the first signal light in response to the second communication system and stops sending the energy transmission light, stop receiving the energy transmission light from the first communication system.

23. The method according to any one of claims 18 to 21, characterized in that, In the case of an abnormality of the second communication system, a fourth signal light is sent to the first communication system, where the fourth signal light is used to instruct the first communication system to stop sending the energy transmission light; The method further includes: when the first communication system stops sending the energy transmission light in response to the fourth signal light, stop receiving the energy transmission light from the first communication system.

24. A second communication device, characterized in that, It includes a processor and a memory. The memory includes instructions. The processor reads and executes the instructions, so that the second communication device performs the following operations: Receiving the first energy transmission light sent by the first communication system through an optical fiber, and obtaining electric energy based on the first energy transmission light, where the first energy transmission light is used to provide energy to the second communication device; Based on the first energy transmission light, sending a first signal, and sending a first signal light to the first communication system through the optical fiber, and receiving the second energy transmission light sent by the first communication system through the optical fiber, where the first signal light is obtained from the first signal, and the second energy transmission light is obtained by the first communication system in response to the first signal light, and the power of the second energy transmission light is greater than the power of the first energy transmission light.

25. The communication device according to claim 24, wherein, The second communication device is electrically connected to a second optical module. The second communication device further includes an optical-electric converter and a monitor, where the optical-electric converter and the monitor are connected to the processor, and the optical inlet of the optical-electric converter is docked with the second optical module; The optical-electric converter is used to convert the first energy transmission light and the second energy transmission light received by the second optical module through the optical fiber into first electric energy and second electric energy respectively, and provide the first electric energy and the second electric energy to the processor; The monitor is used to monitor the power of the first energy - transmitting light, send the monitoring result to the processor, and provide the current obtained through the monitoring for the second optical module; The processor is used to send the first signal to the second optical module through the electrical connection based on the first electrical energy and the monitoring result. After the second optical module converts the first signal into the first signal light, the first signal light is sent to the first communication system through the optical fiber.

26. The communication device according to claim 24, characterized in that, The second communication device is electrically connected to the second optical module. The second communication device further includes an electro - optical converter. The processor is connected to the electro - optical converter, and the light outlet of the electro - optical converter is used to dock with the second optical module; The processor is used to obtain the first electrical energy, the second electrical energy, and the first monitoring result from the second optical module through the electrical connection, and send the first signal to the electro - optical converter based on the first electrical energy and the monitoring result. The first electrical energy is obtained by the second optical module receiving the first energy - transmitting light sent by the first communication system through the optical fiber. The first monitoring result includes the power information of the first energy - transmitting light. The second electrical energy is obtained by the second optical module receiving the second energy - transmitting light through the optical fiber; The electro - optical converter is used to convert the first signal into the first signal light under the drive of the first current provided by the second optical module through the electrical connection, and the first signal light is sent to the first communication system through the optical fiber by the second optical module. The generation of the first current is based on the first energy - transmitting light by the second optical module.

27. The communication device according to claim 24, wherein The second communication device is electrically connected to the second optical module. The second communication device further includes a photo - electric converter, a monitor, and an electro - optical converter. The processor is respectively connected to the photo - electric converter, the monitor, and the electro - optical converter. The monitor is connected to the processor and the electro - optical converter. The light inlet of the photo - electric converter and the light outlet of the electro - optical converter are docked with the second optical module; The photo - electric converter is used to convert the first energy - transmitting light and the second energy - transmitting light received by the second optical module through the optical fiber into the first electrical energy and the second electrical energy respectively, and provide the first electrical energy and the second electrical energy to the processor; The monitor is used to monitor the power of the first energy - transmitting light, send the monitoring result to the processor, and provide the current obtained through the monitoring to the electro - optical converter; The processor is used to send the first signal to the electro - optical converter based on the electrical energy and the monitoring result; The electro - optical converter is used to convert the first signal into the first signal light under the drive of the current, and the first signal light is sent to the first communication system through the optical fiber by the second optical module.

28. The communication device according to claim 24, wherein The second communication device further includes an optical port, an optical-electric converter, a monitor, and an electro-optical converter. The optical port is connected to the optical inlet of the optical-electric converter. The output end of the optical-electric converter is connected to the processor. The monitor is connected to the processor and the electro-optical converter. The input end of the electro-optical converter is connected to the processor. The optical outlet of the electro-optical converter is connected to the optical port. The optical port is connected to the first communication system through an optical fiber. The optical port is used to receive the first energy-carrying light and the second energy-carrying light sent by the first communication system through the optical fiber. The optical-electric converter is used to convert the first energy-carrying light and the second energy-carrying light into first electric energy and second electric energy respectively, and provide the first electric energy and the second electric energy to the processor. The monitor is used to monitor the power of the first energy-carrying light, send the monitoring result to the processor, and provide the current obtained through monitoring to the electro-optical converter. The processor is used to send the first signal to the electro-optical converter based on the first electric energy and the monitoring result. The first signal is used to instruct the first communication system to send the second energy-carrying light. The electro-optical converter is used to convert the first signal into first signal light under the drive of the current. The optical port is further used to send the first signal light to the first communication system through the optical fiber.

29. A second optical module, characterized in that, It includes a first optical port which is used to connect to the first communication system through an optical fiber. The first optical port is further used to receive the first energy-carrying light sent by the first communication system through the optical fiber. The first energy-carrying light is used to provide energy for the second communication device. And it is used to send the first signal light to the first communication system through the optical fiber, receive the second energy-carrying light sent by the first communication system through the optical fiber. The generation and sending of the first signal light are based on the first energy-carrying light. The generation of the second energy-carrying light responds to the first signal light. The power of the second energy-carrying light is greater than that of the first energy-carrying light.

30. The optical module according to claim 29, wherein The second optical module further includes a second optical port, an electrical interface, and an electro-optical converter. The second optical port is used to connect to the second communication device. The electrical interface is used to be electrically connected to the second communication device. The input end of the electro-optical converter is connected to the electrical interface, and the optical outlet is connected to the first optical port. The first energy-carrying light and the second energy-carrying light received by the first optical port can reach the second optical port. The second optical port is used to provide the first energy-carrying light and the second energy-carrying light for the second communication device. The electro-optical converter is used to receive the first signal and the current sent by the second communication device through the electrical interface, convert the first signal into the first signal light under the drive of the current, and send the first signal light to the first communication system through the first optical port. The generation and sending of the first signal and the current are based on the first energy-carrying light.

31. The optical module according to claim 29, characterized in that, The second optical module further includes an optical-electric converter, a monitor, an electrical interface, and a second optical port. The first optical port is docked with the optical inlet of the optical-electric converter. The output end of the optical-electric converter is connected to the electrical interface. The monitor is connected to the electrical interface. The electrical interface is used for electrically connecting to a second communication device. The second optical port is used for docking with the second communication device; The optical-electric converter is used for respectively converting the first energy-carrying light and the second energy-carrying light received by the first optical port through the optical fiber into first electric energy and second electric energy, and providing the first electric energy and the second electric energy to the second communication device through the electrical interface; The monitor is used for monitoring the power of the first energy-carrying light to obtain a first monitoring result, and sending the first monitoring result and a first current obtained during the monitoring process to the second communication device through the electrical interface. The first monitoring result includes the power information of the first energy-carrying light; The second optical port is used for receiving the first signal light sent by the second communication device. The generation and sending of the first signal light are based on the first monitoring result, the first current, and the first electric energy. The first signal light can reach the first optical port.

32. The optical module according to claim 29, wherein The second optical module further includes a second optical port for docking with the second communication device; The first energy-carrying light and the second energy-carrying light can reach the second optical port through the first optical port. The second optical port provides the first energy-carrying light and the second energy-carrying light to the second communication device; The second optical port is further used for receiving the first signal light sent by the second communication device. The first signal light can reach the first optical port through the second optical port.

33. The optical module according to claim 29, wherein, The second optical module further includes an optical-electric converter, a monitor, a processor, an electrical interface, and an electro-optical converter. The first optical port is docked with the optical inlet of the optical-electric converter. The output end of the optical-electric converter is connected to the processor and the electrical interface. The input end of the electro-optical converter is connected to the processor. The optical outlet of the electro-optical converter is docked with the first optical port. The monitor is connected to the processor and the electro-optical converter. The electrical interface is used for electrically connecting to a second communication device; The optical-electric converter is used for respectively converting the first energy-carrying light and the second energy-carrying light into first electric energy and second electric energy, providing the first electric energy and the second electric energy to the processor, and providing the first electric energy and the second electric energy to the second communication device through the electrical interface; The monitor is used for monitoring the power of the first energy-carrying light, sending the monitoring result to the processor, and providing the current obtained through the monitoring to the electro-optical converter; The processor is used for sending a first signal to the electro-optical converter based on the first electric energy and the monitoring result. The first signal is used for instructing the first communication system to send the second energy-carrying light; The electro-optical converter is used for converting the first signal into the first signal light under the drive of the current, and sending the first signal light to the first optical port. The first optical port is further used for sending the first signal light to the first communication system through the optical fiber.

34. A second communication system, characterized in that, A second communication device according to any one of claims 24 to 28 above, and a second optical module according to any one of claims 29 to 33 above, wherein the second optical module is plugged into the second communication device.

35. An electronic device, characterized in that, It includes a memory for storing computer program instructions and a processor for executing the program instructions. Wherein, when the computer program instructions are executed by the processor, the electronic device is caused to execute the method according to any one of claims 1 to 6, 18 to 23.

36. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein when the program runs, it controls the device where the computer-readable storage medium is located to execute the method according to any one of claims 1 to 6, 18 to 23.

37. A computer program product, characterized in that, The computer program product contains executable instructions, which when executed on a computer, cause the computer to execute the method according to any one of claims 1 to 6, 18 to 23.

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