All-optical communication device supporting optical fiber transmission and control method thereof

Abstract

The invention relates to an all-optical communication device supporting optical fiber transmission and a control method thereof. The all-optical communication device supporting optical fiber transmission comprises a first optical communication node which comprises a first acquisition structure and a first optical communication structure, the first acquisition structure is used for acquiring first environment information, and the first optical communication structure can transmit a first optical signal loaded with the first environment information to the outside; the first optical fiber node is used for receiving the first environment information, converting the first environment information into a first optical port signal and transmitting the first optical port signal to an optical fiber; the second optical fiber node can receive the first optical port signal and convert the first optical port signal into a first electric port signal; and the second optical communication node can receive the first electric port signal and extract the first environment information, and can also transmit a second optical signal loaded with the first environment information to the outside. According to the invention, long-distance wired optical communication is realized, an optical communication network with multi-scene coverage is established, and the application field of the optical communication technology is expanded.

Description

Technical Field

[0001] The present invention relates to the field of optical communication technology, and in particular to an all-optical communication device supporting optical fiber transmission and a control method thereof. Background Art

[0002] Optical communication technology transmits information by controlling the on and off of LEDs (light-emitting diodes). The current most advanced visible light communication can achieve a transmission rate of Gb / s. Traditional radio signal transmission equipment has many limitations, such as being expensive and inefficient. For example, millions of base stations are built around the world to enhance mobile phone transmission signals, but most of the energy is consumed in equipment cooling, and the energy efficiency is only 5%. In contrast, optical communication technology essentially transmits information through optical signals. The required transmission equipment only requires LEDs, and does not occupy existing frequency band resources, so there will be no mutual interference with existing frequency band equipment, making visible light communication have good communication quality and confidentiality, and more environmentally friendly. As a backup solution for radio frequency communication, optical communication is increasingly valued by universities and research institutions.

[0003] Wireless optical communication systems can establish high-speed, electromagnetically-interference-resistant optical transmission links in free space, and can realize relay networking of multiple optical transmission links based on transparent transmission mode, thereby building an all-optical communication network. However, traditional all-optical communication networks are limited to link combinations in free space, lack connectivity with optical fiber transmission systems or optical fiber backbone networks, and cannot establish ultra-long-distance information transmission, thus limiting the expansion of the field of all-optical communication technology.

[0004] Therefore, how to establish ultra-long-distance information transmission based on all-optical communication technology and expand the application field of optical communication technology is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The present invention provides an all-optical communication device supporting optical fiber transmission and a control method thereof, which are used to establish ultra-long distance information transmission based on all-optical communication technology, thereby realizing the expansion of the application field of optical communication technology.

[0006] According to some embodiments, the present invention provides an all-optical communication device supporting optical fiber transmission, comprising:

[0007] A first optical communication node includes a first acquisition structure and a first optical communication structure connected to the first acquisition structure, the first acquisition structure is used to acquire first environmental information, and the first optical communication structure can transmit a first optical signal loaded with the first environmental information to the outside;

[0008] a first optical fiber node, connected to the first optical communication node, the first optical fiber node being used to receive the first environmental information and convert the first environmental information into a first optical port signal, and the first optical fiber node being also used to transmit the first optical port signal to an optical fiber;

[0009] a second optical fiber node, connected to the first optical fiber node through the optical fiber, and the second optical fiber node is capable of receiving the first optical port signal and converting the first optical port signal into a first electrical port signal;

[0010] A second optical communication node is connected to the second optical fiber node, and the second optical communication node includes a second optical communication structure. The second optical communication structure can receive the first electrical port signal and extract the first environmental information in the first electrical port signal, and the second optical communication structure can also transmit a second optical signal loaded with the first environmental information to the outside world.

[0011] In some embodiments, the first optical communication node comprises:

[0012] A first mobile node includes the first acquisition structure and a first mobile optical communication structure, wherein the first mobile optical communication structure is used to transmit the first optical signal loaded with the first environmental information to the outside world;

[0013] The first fixed node includes a first fixed optical communication structure and a first fixed wireless optical communication main control structure, wherein the first fixed optical communication structure is used to detect the first optical signal and convert the first optical signal into a first electrical signal, and the first fixed wireless optical communication main control structure is used to extract the first environmental information from the first electrical signal.

[0014] In some embodiments, the first mobile node further includes a first mobile visual tracking structure, the first mobile visual tracking structure includes a first mobile video acquisition component and a first mobile controller, the first mobile video acquisition component includes a first mobile video acquisition window for acquiring a tracking picture, and the first mobile controller is connected to the first mobile video acquisition component and is used to adjust the posture of the first mobile video acquisition component so that the first fixed node is located in the middle of the tracking picture;

[0015] The first mobile optical communication structure includes a first mobile optical signal transceiving window, and the first mobile optical signal transceiving window is fixedly connected to the first mobile video acquisition window and arranged in the same direction.

[0016] In some embodiments, the first optical communication nodes include a plurality of the first mobile nodes, and bidirectional optical communication can be performed between any two adjacent first mobile nodes.

[0017] In some embodiments, the first fixed wireless optical communication main control structure in the first fixed node is connected to the first optical fiber node via a wireless network; or,

[0018] The first fixed wireless optical communication main control structure in the first fixed node is connected to the first optical fiber node via an RJ-45 network interface and a twisted pair cable.

[0019] In some embodiments, the second optical communication node comprises:

[0020] The second fixed node includes a second fixed optical communication structure and a second fixed wireless optical communication main control structure, wherein the second fixed wireless optical communication main control structure is capable of receiving the first electrical port signal and extracting the first environmental information from the first electrical port signal, and the second fixed optical communication structure is used to transmit the second optical signal loaded with the first environmental information to the outside world;

[0021] The second mobile node includes a second mobile optical communication structure and a second mobile wireless optical communication main control structure, the second mobile optical communication structure is used to detect the second optical signal and convert the second optical signal into a third electrical signal, and the second mobile wireless optical communication main control structure is used to extract the first environmental information from the third electrical signal.

[0022] In some embodiments, the second mobile node further includes a second collection structure, the second collection structure is used to collect second environmental information, and the second mobile optical communication structure is used to transmit a third optical signal loaded with the second environmental information to the outside world;

[0023] The second fixed optical communication structure in the second fixed node is used to detect the third optical signal and convert the third optical signal into a fourth electrical signal, and the second fixed wireless optical communication main control structure is used to extract the second environmental information in the fourth electrical signal and transmit it to the second optical fiber node;

[0024] The second optical fiber node is used to receive the second environmental information and convert the second environmental information into a second optical port signal, and the second optical fiber node is also used to transmit the second optical port signal to the optical fiber;

[0025] The first optical fiber node is capable of receiving the second optical port signal and converting the second optical port signal into a second electrical port signal, and the first optical fiber node is also used to transmit the second electrical port signal to the first fixed node;

[0026] The first fixed wireless optical communication main control structure in the first fixed node is used to receive the second electrical port signal and extract the second environmental information in the second electrical port signal, and the second fixed optical communication structure is used to transmit a fourth optical signal loaded with the second environmental information to the outside world;

[0027] The first mobile optical communication structure in the first mobile node is used to receive the fourth optical signal and convert the fourth optical signal into a fifth electrical signal;

[0028] The first mobile node also includes a first mobile wireless optical communication main control structure, and the first mobile optical communication main control structure is used to extract the second environmental information in the fifth electrical signal.

[0029] In some embodiments, the first mobile node is an underwater mobile node, and the first optical signal is a first blue optical signal;

[0030] The second mobile node is a high-altitude mobile node, and the second optical signal is a first deep ultraviolet optical signal.

[0031] In some embodiments, the length of the optical fiber is greater than 100 kilometers.

[0032] According to other embodiments, the present invention also provides a control method for the all-optical communication device supporting optical fiber transmission as described above, comprising the following steps:

[0033] Controlling the first collection structure in the first optical communication node to collect first environmental information;

[0034] Controlling the first optical communication structure in the first optical communication node to transmit a first optical signal loaded with the first environmental information to the outside, and transmitting the first environmental information to the first optical fiber node;

[0035] Controlling the first optical fiber node to convert the first environmental information into a first optical port signal and transmitting the first optical port signal to the optical fiber;

[0036] Control the second optical fiber node to receive the first optical port signal from the optical fiber and convert the first optical port signal into the first electrical port signal, and control the second optical fiber node to transmit the first electrical port signal to the second optical communication node;

[0037] The second optical communication node is controlled to extract the first environmental information from the first electrical port signal, and the second optical communication structure is controlled to transmit a second optical signal loaded with the first environmental information to the outside.

[0038] The all-optical communication device supporting optical fiber transmission provided by the present invention and its control method, collects the first environmental information through the first optical communication node and transmits the first optical signal carrying the first environmental information to the outside world, the first optical fiber node is connected to the first optical communication node, and the first optical fiber node is connected to the second optical fiber node through the optical fiber, so that the first optical fiber node can transmit the first environmental information to the second optical fiber node through the optical fiber after receiving the first environmental information, and then transmit it to the second optical communication node by the second optical fiber node, and the second optical communication node can load the first environmental information into the second optical signal and transmit it to the outside world, thereby realizing the combination of wireless optical communication and optical fiber communication, by accessing the optical fiber transmission network including the first optical fiber node, the optical fiber and the second optical fiber node, so as to not only realize long-distance wired optical communication, but also realize the use of different optical bands (such as the first optical signal and the second optical signal) to realize the transmission of environmental information (such as the first environmental information) in different media, and form an optical communication network covering multiple scenarios, expand the application field of optical communication technology, and greatly improve the flexibility and scalability of the optical fiber transmission network. In addition, the data in the present invention can be directly connected to the optical fiber transceiver node, and long-distance wired transmission can be carried out through a bidirectional single-mode optical fiber. In this full-duplex communication network structure, all communication nodes have equal and complete mapping characteristics, so data transparent transmission can be achieved completely in the form of light between any nodes in the network. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a structural block diagram of an all-optical communication device supporting optical fiber transmission in a specific embodiment of the present invention;

[0040] Figure 2 is a schematic diagram of signal transmission of an all-optical communication device supporting optical fiber transmission in a specific embodiment of the present invention;

[0041] Figure 3 It is a structural schematic diagram of an all-optical communication device supporting optical fiber transmission accessing an ocean-exploring OTN observation platform in a specific implementation manner of the present invention;

[0042] Figure 4 It is a flow chart of a control method of an all-optical communication device supporting optical fiber transmission in a specific implementation manner of the present invention. DETAILED DESCRIPTION

[0043] The specific implementation manner of the all-optical communication device supporting optical fiber transmission and the control method thereof provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0044] This specific embodiment provides an all-optical communication device supporting optical fiber transmission. Figure 1is a structural block diagram of an all-optical communication device supporting optical fiber transmission in a specific implementation manner of the present invention, Figure 2 FIG. 1 is a schematic diagram of signal transmission of an all-optical communication device supporting optical fiber transmission in a specific embodiment of the present invention. Figure 1 and Figure 2 As shown, the all-optical communication device supporting optical fiber transmission includes:

[0045] The first optical communication node 10 comprises a first acquisition structure and a first optical communication structure connected to the first acquisition structure, wherein the first acquisition structure is used to acquire first environmental information, and the first optical communication structure can transmit a first optical signal loaded with the first environmental information to the outside;

[0046] A first optical fiber node 11, connected to the first optical communication node 10, the first optical fiber node 11 is used to receive the first environmental information and convert the first environmental information into a first optical port signal, and the first optical fiber node 11 is also used to transmit the first optical port signal to an optical fiber;

[0047] A second optical fiber node 12 is connected to the first optical fiber node 11 through the optical fiber, and the second optical fiber node 12 is capable of receiving the first optical port signal and converting the first optical port signal into a first electrical port signal;

[0048] A second optical communication node 13 is connected to the second optical fiber node 12. The second optical communication node 13 includes a second optical communication structure. The second optical communication structure can receive the first electrical port signal and extract the first environmental information in the first electrical port signal, and the second optical communication structure can also transmit a second optical signal loaded with the first environmental information to the outside world.

[0049] In some embodiments, the first optical communication node 10 comprises:

[0050] The first mobile node 101 includes the first acquisition structure and a first mobile optical communication structure, where the first mobile optical communication structure is used to transmit the first optical signal loaded with the first environmental information to the outside world;

[0051] The first fixed node 102 includes a first fixed optical communication structure and a first fixed wireless optical communication main control structure, wherein the first fixed optical communication structure is used to detect the first optical signal and convert the first optical signal into a first electrical signal, and the first fixed wireless optical communication main control structure is used to extract the first environmental information from the first electrical signal.

[0052] For example, the first optical communication node 10 includes the first mobile node 101 suitable for installation underwater and the first fixed node 102 suitable for installation underwater, and the first environmental information is underwater information. The first mobile node 101 includes the first acquisition structure for collecting the first environmental information and the first mobile optical communication structure electrically connected to the first acquisition structure. In one example, the first acquisition structure may include deep-sea information capture structures such as underwater network cameras and temperature and humidity sensors. The first acquisition structure transmits the collected first environmental information to the first mobile optical communication structure through an RJ-45 network interface based on the transmission control protocol (TCP). The first mobile optical communication structure includes structures such as a quantum well light emitting diode and a processing circuit. After receiving the first environmental information, the first mobile optical communication structure loads the first environmental information into the first optical signal and transmits the first optical signal to the outside world. The first fixed optical communication structure in the first fixed node 102 may include a photodetector, etc., for receiving the first optical signal and converting the first optical signal into a first electrical signal through a photoelectric conversion circuit. The first fixed wireless optical communication main control structure includes a filtering circuit, a decoding circuit, etc., which are used to extract the first environmental information from the first electrical signal, that is, to restore the first optical signal to the first environmental information through the first fixed optical communication structure. By setting the first optical communication node 10 including the first mobile node 101 and the first fixed node 102, not only can the transparent transmission of the first environmental information be achieved in the first environment such as underwater, thereby improving the concealment and reliability of communication, but also the first optical communication node 10 can be interconnected with the first optical fiber node 11 through the first fixed node 102, thereby realizing seamless access of the wireless optical communication network to the optical fiber transmission network, thereby realizing long-distance wired optical transmission.

[0053] In some embodiments, the first mobile node 101 further includes a first mobile visual tracking structure, the first mobile visual tracking structure includes a first mobile video acquisition component and a first mobile controller, the first mobile video acquisition component includes a first mobile video acquisition window for acquiring a tracking picture, and the first mobile controller is connected to the first mobile video acquisition component and is used to adjust the posture of the first mobile video acquisition component so that the first fixed node 102 is located in the middle of the tracking picture;

[0054] The first mobile optical communication structure includes a first mobile optical signal transceiving window, and the first mobile optical signal transceiving window is fixedly connected to the first mobile video acquisition window and arranged in the same direction.

[0055] Specifically, the first mobile node also includes a vehicle, and the first acquisition structure, the first mobile visual tracking structure and the first mobile optical communication structure are all located on the vehicle. The vehicle can move (for example, translational motion or rotation), thereby driving the first acquisition structure, the first mobile visual tracking structure and the first mobile optical communication structure located on the vehicle to move synchronously. The first mobile video acquisition window is used to collect the tracking picture including the tracking target (for example, the first fixed node 102) during the wireless optical communication process. The first mobile video acquisition component can transmit the tracking picture to the visual tracking circuit through the video output port, and the visual tracking circuit processes the tracking picture and transmits it to the first mobile controller. The video output port can be but is not limited to an HDMI interface. In an example, the first mobile node 101 can be a mobile terminal such as an unmanned submersible, an underwater robot, etc. The first mobile controller can be a pan-tilt controller. After acquiring the tracking picture collected by the first mobile video acquisition component, the first mobile controller determines the current position of the tracking target in the tracking picture based on a real-time image processing algorithm and a target recognition technology. Afterwards, the first mobile controller controls the first mobile video acquisition component to adjust its posture according to the current position of the tracking target in the tracking screen, so that the tracking target is located in the middle position of the tracking screen acquired by the first mobile video acquisition component after the posture adjustment. In one example, the middle position may be the center of the tracking screen. In another example, the middle position may be located within the tracking screen and within a preset distance range from the center of the tracking screen. In this specific implementation, adjusting the posture of the first mobile video acquisition component means that the first mobile video acquisition component rotates in a three-dimensional space coordinate system, wherein the origin of the three-dimensional space coordinate system is located on the first mobile video acquisition component.

[0056] In this specific embodiment, the first mobile video acquisition component is fixedly connected to the first mobile optical communication structure, and the first mobile optical signal transceiver window is fixedly connected to the first mobile video acquisition window and arranged in the same direction. Therefore, when the first mobile controller drives the first mobile video acquisition component to adjust its posture, it can also drive the first mobile optical communication structure to adjust its posture synchronously and in the same direction. When the tracking target is located in the middle of the tracking screen, the first mobile optical communication structure can also be aligned with the tracking target, so that even when the first mobile node 101 and the tracking target (such as the first fixed node 102) move relative to each other, the alignment state can always be maintained, thereby ensuring that the first optical signal emitted by the first mobile optical communication structure through the first mobile optical signal transceiver window can be received by the tracking target, and ensuring that the optical signal emitted by the tracking target can enter the first mobile optical communication structure through the first mobile optical signal transceiver window, so that one or both parties of the wireless optical communication can communicate smoothly and stably during the movement, which greatly expands the application field of wireless optical communication technology.

[0057] In some embodiments, the first optical communication node 10 includes a plurality of the first mobile nodes 101 , and any two adjacent first mobile nodes 101 can perform bidirectional optical communication.

[0058] For example, if Figure 2 As shown, the first optical communication node 10 includes a plurality of the first mobile nodes 101 and one first fixed node 102, and any two adjacent first mobile nodes 101 can perform bidirectional optical communication. In one example, each of the first mobile nodes 101 is provided with the first mobile visual tracking structure, so that any two of the first mobile nodes 101 can also be aligned during relative motion (for example, the first mobile visual tracking structure on one of the first mobile nodes 101 takes another first mobile node 101 as a tracking target), ensuring the accuracy and integrity of signal transmission. In one example, the first fixed node 102 can detect and receive the first optical signal transmitted to the outside by any one of the first mobile nodes 101. In another example, any two of the first mobile nodes 101 in the first optical communication node 10 perform bidirectional transmission of optical signals through the fifth band optical signal λ5, and only one of the first mobile nodes 101 in the first optical communication node 10 can perform bidirectional transmission of optical signals with the first fixed node through the first band optical signal λ1 (for example, the first optical signal), thereby reducing the load of the first fixed node 102 and improving the efficiency of optical communication.

[0059] In some embodiments, the first fixed wireless optical communication main control structure in the first fixed node 102 is connected to the first optical fiber node 11 through a wireless network (Wi-Fi) to improve the flexibility of connecting the first optical communication node 10 with the first optical fiber node 11; or,

[0060] The first fixed wireless optical communication main control structure in the first fixed node 102 is connected to the first optical fiber node 11 via an RJ-45 network interface and a twisted pair cable to improve the reliability of the connection between the first optical communication node 10 and the first optical fiber node 11.

[0061] In some embodiments, the second optical communication node 13 comprises:

[0062] The second fixed node 132 includes a second fixed optical communication structure and a second fixed wireless optical communication main control structure, wherein the second fixed wireless optical communication main control structure is capable of receiving the first electrical port signal and extracting the first environmental information from the first electrical port signal, and the second fixed optical communication structure is used to transmit the second optical signal loaded with the first environmental information to the outside world;

[0063] The second mobile node 131 includes a second mobile optical communication structure and a second mobile wireless optical communication main control structure, wherein the second mobile optical communication structure is used to detect the second optical signal and convert the second optical signal into a third electrical signal, and the second mobile wireless optical communication main control structure is used to extract the first environmental information from the third electrical signal.

[0064] For example, after the first fixed node 102 transmits the first environmental information to the first optical fiber node 11 through the RJ-45 network interface and the twisted pair (i.e., the network cable), the first photoelectric / electrical-optical conversion circuit in the first optical fiber node 11 converts the received first environmental information in the form of the RJ-45 electrical port signal into the first environmental information in the form of the SC optical port signal (i.e., the first optical port signal), and transmits the first optical port signal to the optical fiber through the first optical port transmitter in the first optical fiber node 11. The optical fiber transmits the first optical port signal to the second optical port receiver in the second optical fiber node 12, and the second photoelectric / electrical-optical conversion circuit in the second optical fiber node 12 converts the first environmental information in the form of the SC optical port signal into the first environmental information in the form of the RJ-45 electrical port signal (i.e., the first electrical port signal), and transmits the first environmental information in the form of the RJ-45 electrical port signal to the second fixed node 132 in the second optical communication node 13 through the RJ-45 network interface and the twisted pair. The second fixed wireless optical communication main control structure in the second fixed node 132 is capable of receiving the first electrical port signal and extracting the first environmental information from the first electrical port signal, and transmitting the second optical signal loaded with the first environmental information to the outside through the second fixed optical communication structure. The photodetector in the second mobile node 131 receives the second optical signal and converts the second optical signal into a third electrical signal, and the second mobile wireless optical communication main control structure is used to extract the first environmental information from the third electrical signal. Afterwards, the second mobile node 131 can transmit the first environmental information to other devices by means of wireless optical communication. In one example, the second mobile node 131 also includes a second mobile visual tracking structure, and the second fixed node 132 also includes a second fixed visual tracking structure, and the second mobile visual tracking structure and the second fixed time tracking structure are the same as the first mobile visual tracking structure, so as to realize real-time alignment of the second fixed node 132 with the second mobile node 131.

[0065] In order to achieve full-duplex communication, in some embodiments, the second mobile node 131 further includes a second collection structure, the second collection structure is used to collect second environmental information, and the second mobile optical communication structure is used to transmit a third optical signal loaded with the second environmental information to the outside world;

[0066] The second fixed optical communication structure in the second fixed node 132 is used to detect the third optical signal and convert the third optical signal into a fourth electrical signal, and the second fixed wireless optical communication main control structure is used to extract the second environmental information in the fourth electrical signal and transmit it to the second optical fiber node 12;

[0067] The second optical fiber node 12 is used to receive the second environmental information and convert the second environmental information into a second optical port signal, and the second optical fiber node 12 is also used to transmit the second optical port signal to the optical fiber;

[0068] The first optical fiber node 11 is capable of receiving the second optical port signal and converting the second optical port signal into a second electrical port signal, and the first optical fiber node 11 is also used to transmit the second electrical port signal to the first fixed node;

[0069] The first fixed wireless optical communication main control structure in the first fixed node 102 is used to receive the second electrical port signal and extract the second environmental information in the second electrical port signal, and the second fixed optical communication structure is used to transmit a fourth optical signal loaded with the second environmental information to the outside world;

[0070] The first mobile optical communication structure in the first mobile node 101 is used to receive the fourth optical signal and convert the fourth optical signal into a fifth electrical signal;

[0071] The first mobile node 101 further includes a first mobile wireless optical communication main control structure, and the first mobile optical communication main control structure is used to extract the second environmental information in the fifth electrical signal.

[0072] Specifically, after the second mobile node 131 collects the second environmental information through the second collection structure, the quantum well diode and other structures in the second mobile optical communication structure transmit the third optical signal loaded with the second environmental information to the outside. The photoelectric detector in the second fixed node 132 detects the third optical signal and converts the third optical signal into a fourth electrical signal, and the second fixed wireless optical communication main control structure in the second fixed node 132 extracts the second environmental information in the fourth electrical signal, and transmits the second environmental information to the second optical fiber node 12 through the RJ-45 network interface and the twisted pair (i.e., the network cable), the second photoelectric / electrical-optical conversion circuit in the second optical fiber node 12 converts the received second environmental information in the form of the RJ-45 electrical port signal into the second environmental information in the form of the SC optical port signal (i.e., the second optical port signal), and transmits the second optical port signal to the optical fiber through the second optical port transmitter in the second optical fiber node 12. The optical fiber transmits the second optical port signal to the first optical port receiver in the first optical fiber node 11, and the first photoelectric / electrical-optical conversion circuit in the first optical fiber node 11 converts the second environmental information in the form of the SC optical port signal into the second environmental information in the form of the RJ-45 electrical port signal (i.e., the second electrical port signal), and transmits the second environmental information in the form of the RJ-45 electrical port signal to the first fixed node 102 in the first optical communication node 11 through the RJ-45 network interface and the twisted pair. The first fixed wireless optical communication main control structure in the first fixed node 102 can receive the second electrical port signal and extract the second environmental information in the second electrical port signal, and transmit the fourth optical signal loaded with the second environmental information to the outside through the first fixed optical communication structure. The photoelectric detector in the first mobile node 101 receives the fourth optical signal and converts the fourth optical signal into a fifth electrical signal, and the first mobile wireless optical communication main control structure is used to extract the second environmental information from the fifth electrical signal. Afterwards, the first mobile node 101 can transmit the second environmental information to other devices by wireless optical communication.

[0073] In some embodiments, the second optical communication node 13 includes a plurality of second mobile nodes 131 , and any two adjacent second mobile nodes 131 can perform bidirectional optical communication.

[0074] For example, if Figure 2As shown, the second optical communication node 13 includes a plurality of the second mobile nodes 131 and one second fixed node 132, and any two adjacent second mobile nodes 131 can perform bidirectional optical communication. In one example, each of the second mobile nodes 131 is provided with a second mobile visual tracking structure, so that any two of the second mobile nodes 131 can also be aligned during relative motion (for example, the second mobile visual tracking structure on one of the second mobile nodes 131 takes another second mobile node 131 as a tracking target), ensuring the accuracy and integrity of signal transmission. In one example, the second fixed node 132 can detect and receive the third optical signal transmitted by any of the second mobile nodes 131 to the outside world. In another example, any two of the second mobile nodes 131 in the second optical communication node 13 perform bidirectional transmission of optical signals through the sixth-band optical signal λ6, and only one of the second mobile nodes 131 in the second optical communication node 13 can perform bidirectional transmission of optical signals with the second fixed node 132 through the fourth-band optical signal λ4 (for example, the third optical signal), thereby reducing the load of the second fixed node 132 and improving the efficiency of optical communication.

[0075] In some embodiments, the first mobile node 101 is an underwater mobile node, and the first optical signal is a first blue light signal;

[0076] The second mobile node 131 is a high-altitude mobile node, and the second optical signal is a first deep ultraviolet light signal.

[0077] Figure 3It is a structural schematic diagram of an all-optical communication device supporting optical fiber transmission accessing a sea exploration OTN observation platform in a specific embodiment of the present invention. For example, the first mobile node 101 is an unmanned submersible or an underwater robot, and the first mobile optical communication structure includes a blue light LED and a photodetector. The first fixed node 102 is a seabed fixed node, and the first fixed optical communication structure includes a blue light LED and a photodetector. The first optical fiber node 11 is a deep-sea OTN (optical transport network) equipment node, the second optical fiber node 12 is a bottom OTN equipment node, the second fixed node 132 is a ground fixed node, and the second mobile node 131 is a drone. Since the blue light band has a smaller attenuation in water, and the infrared band has a smaller attenuation in the atmosphere, it is suitable for long-distance communication, and the deep ultraviolet light band is located in the solar blind area and is more suitable for communication in a strong sunlight environment. Therefore, the first optical communication node 10 uses a 450nm band of blue light communication, and the second optical communication node 13 uses a 275nm deep ultraviolet light band for communication. The first optical fiber node 11 transmits the first optical port signal (i.e., downlink) in the 1550nm band (i.e., the second band optical signal λ2) to the optical fiber, and the second optical fiber node 12 transmits the second optical port signal (i.e., uplink) in the 1310nm band (i.e., the third band optical signal λ3) to the optical fiber.

[0078] For example, after the first acquisition structure such as the network camera, temperature and humidity sensor based on the transmission control protocol in the unmanned submersible or underwater robot captures the deep-sea information (i.e., the first environmental information), it is transmitted to the first mobile wireless optical communication main control structure through the RJ-45 network interface, and the blue light LED in the unmanned submersible or underwater robot is modulated to emit a 450nm band optical pulse signal (i.e., the first optical signal) underwater. After the photoelectric detector in the seabed fixed node captures the optical pulse signal emitted by the unmanned submersible or underwater robot, it converts the optical pulse signal into an electrical signal (i.e., the first electrical signal) and restores it to the original data (i.e., the first environmental information). Then, the seabed fixed node transmits the restored original data to the deep-sea OTN device node through the RJ-45 network interface and twisted pair cable, and converts the RJ-45 electrical port signal to the SC optical port signal through the first photoelectric / electrical-optical conversion circuit in the deep-sea OTN device node to obtain the first optical port signal. Then, the first optical port signal is sent out through the first optical port transmitter, transmitted to the second optical port receiver in the ground OTN device node through 100 public optical fiber, and the SC optical port signal is converted into an RJ-45 electrical port signal (i.e., the first electrical port signal) through the second optoelectronic / electro-optical conversion circuit in the ground OTN device node. After that, the ground OTN device node transmits the RJ-45 electrical port signal to the ground fixed node through the RJ-45 network interface and twisted pair. The second fixed wireless optical communication main control structure in the ground fixed node encodes and modulates the received data again onto the deep ultraviolet LED, and sends it to the drone in the form of deep ultraviolet light to achieve day-blind communication and networking in a strong sunlight environment. Using the above method, an unmanned submersible or underwater robot located in the deep sea can transmit the real-time working conditions or collected information to the ground network node through the optical fiber backbone network, and the ground network node supports a small range of mobile optical networking. The drone can receive these data infinitely and reversely control the underwater equipment in the deep sea.

[0079] In some embodiments, the length of the optical fiber is greater than 100 kilometers.

[0080] This specific embodiment also provides a control method for the all-optical communication device supporting optical fiber transmission as described above. Figure 4 is a flow chart of a control method of an all-optical communication device supporting optical fiber transmission in a specific embodiment of the present invention. The structural schematic diagram of the all-optical communication device supporting optical fiber transmission can be found in Figure 1-Figure 3 .like Figure 1-Figure 4 As shown, the control method of the all-optical communication device supporting optical fiber transmission comprises the following steps:

[0081] Step S41, controlling the first collection structure in the first optical communication node 10 to collect first environmental information;

[0082] Step S42, controlling the first optical communication structure in the first optical communication node 10 to transmit a first optical signal loaded with the first environmental information to the outside, and transmitting the first environmental information to the first optical fiber node 11;

[0083] Step S43, controlling the first optical fiber node 11 to convert the first environmental information into a first optical port signal and transmitting the first optical port signal to the optical fiber;

[0084] Step S44, controlling the second optical fiber node 12 to receive the first optical port signal from the optical fiber and convert the first optical port signal into the first electrical port signal, and controlling the second optical fiber node to transmit the first electrical port signal to the second optical communication node 13;

[0085] Step S45: Control the second optical communication node 13 to extract the first environmental information from the first electrical port signal, and control the second optical communication structure to transmit a second optical signal loaded with the first environmental information to the outside.

[0086] The all-optical communication device supporting optical fiber transmission and the control method thereof provided in this specific embodiment collect first environmental information through a first optical communication node and transmit the first optical signal carrying the first environmental information to the outside world. The first optical fiber node is connected to the first optical communication node, and the first optical fiber node is connected to the second optical fiber node through an optical fiber, so that the first optical fiber node can transmit the first environmental information to the second optical fiber node through an optical fiber after receiving the first environmental information, and then the second optical fiber node transmits it to the second optical communication node. The second optical communication node can load the first environmental information into the second optical signal and transmit it to the outside world, thereby realizing the combination of wireless optical communication and optical fiber communication. By accessing the optical fiber transmission network including the first optical fiber node, the optical fiber and the second optical fiber node, not only long-distance wired optical communication is realized, but also the use of different optical bands (such as the first optical signal and the second optical signal) to realize the transmission of environmental information (such as the first environmental information) in different media, forming an optical communication network covering multiple scenarios, expanding the application field of optical communication technology, and greatly improving the flexibility and scalability of the optical fiber transmission network.

[0087] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An all-optical communication device supporting optical fiber transmission, characterized in that: include: A first optical communication node includes a first acquisition structure and a first optical communication structure connected to the first acquisition structure, the first acquisition structure is used to acquire first environmental information, and the first optical communication structure can transmit a first optical signal loaded with the first environmental information to the outside; a first optical fiber node, connected to the first optical communication node, the first optical fiber node being used to receive the first environmental information and convert the first environmental information into a first optical port signal, and the first optical fiber node being also used to transmit the first optical port signal to an optical fiber; a second optical fiber node, connected to the first optical fiber node through the optical fiber, and the second optical fiber node is capable of receiving the first optical port signal and converting the first optical port signal into a first electrical port signal; A second optical communication node is connected to the second optical fiber node, and the second optical communication node includes a second optical communication structure. The second optical communication structure can receive the first electrical port signal and extract the first environmental information in the first electrical port signal, and the second optical communication structure can also transmit a second optical signal loaded with the first environmental information to the outside world.

2. The all-optical communication device supporting optical fiber transmission according to claim 1, characterized in that: The first optical communication node comprises: A first mobile node includes the first acquisition structure and a first mobile optical communication structure, wherein the first mobile optical communication structure is used to transmit the first optical signal loaded with the first environmental information to the outside world; The first fixed node includes a first fixed optical communication structure and a first fixed wireless optical communication main control structure, wherein the first fixed optical communication structure is used to detect the first optical signal and convert the first optical signal into a first electrical signal, and the first fixed wireless optical communication main control structure is used to extract the first environmental information from the first electrical signal.

3. The all-optical communication device supporting optical fiber transmission according to claim 2, characterized in that: The first mobile node further includes a first mobile visual tracking structure, the first mobile visual tracking structure includes a first mobile video acquisition component and a first mobile controller, the first mobile video acquisition component includes a first mobile video acquisition window for acquiring a tracking picture, and the first mobile controller is connected to the first mobile video acquisition component and is used to adjust the posture of the first mobile video acquisition component so that the first fixed node is located in the middle of the tracking picture; The first mobile optical communication structure includes a first mobile optical signal transceiving window, and the first mobile optical signal transceiving window is fixedly connected to the first mobile video acquisition window and arranged in the same direction.

4. The all-optical communication device supporting optical fiber transmission according to claim 2, characterized in that: The first optical communication nodes include a plurality of the first mobile nodes, and any two adjacent first mobile nodes can perform bidirectional optical communication.

5. The all-optical communication device supporting optical fiber transmission according to claim 2, characterized in that: The first fixed wireless optical communication main control structure in the first fixed node is connected to the first optical fiber node via a wireless network; or, The first fixed wireless optical communication main control structure in the first fixed node is connected to the first optical fiber node via an RJ-45 network interface and a twisted pair cable.

6. The all-optical communication device supporting optical fiber transmission according to claim 2, characterized in that: The second optical communication node comprises: The second fixed node includes a second fixed optical communication structure and a second fixed wireless optical communication main control structure, wherein the second fixed wireless optical communication main control structure is capable of receiving the first electrical port signal and extracting the first environmental information from the first electrical port signal, and the second fixed optical communication structure is used to transmit the second optical signal loaded with the first environmental information to the outside world; The second mobile node includes a second mobile optical communication structure and a second mobile wireless optical communication main control structure, the second mobile optical communication structure is used to detect the second optical signal and convert the second optical signal into a third electrical signal, and the second mobile wireless optical communication main control structure is used to extract the first environmental information from the third electrical signal.

7. The all-optical communication device supporting optical fiber transmission according to claim 6, characterized in that: The second mobile node further includes a second collection structure, the second collection structure is used to collect second environmental information, and the second mobile optical communication structure is used to transmit a third optical signal loaded with the second environmental information to the outside world; The second fixed optical communication structure in the second fixed node is used to detect the third optical signal and convert the third optical signal into a fourth electrical signal, and the second fixed wireless optical communication main control structure is used to extract the second environmental information in the fourth electrical signal and transmit it to the second optical fiber node; The second optical fiber node is used to receive the second environmental information and convert the second environmental information into a second optical port signal, and the second optical fiber node is also used to transmit the second optical port signal to the optical fiber; The first optical fiber node is capable of receiving the second optical port signal and converting the second optical port signal into a second electrical port signal, and the first optical fiber node is also used to transmit the second electrical port signal to the first fixed node; The first fixed wireless optical communication main control structure in the first fixed node is used to receive the second electrical port signal and extract the second environmental information in the second electrical port signal, and the second fixed optical communication structure is used to transmit a fourth optical signal loaded with the second environmental information to the outside world; The first mobile optical communication structure in the first mobile node is used to receive the fourth optical signal and convert the fourth optical signal into a fifth electrical signal; The first mobile node also includes a first mobile wireless optical communication main control structure, and the first mobile optical communication main control structure is used to extract the second environmental information in the fifth electrical signal.

8. The all-optical communication device supporting optical fiber transmission according to claim 7, characterized in that: The first mobile node is an underwater mobile node, and the first optical signal is a first blue light signal; The second mobile node is a high-altitude mobile node, and the second optical signal is a first deep ultraviolet optical signal.

9. The all-optical communication device supporting optical fiber transmission according to claim 1, characterized in that: The length of the optical fiber is more than 100 kilometers.

10. A control method for an all-optical communication device supporting optical fiber transmission as claimed in claim 1, characterized in that: The steps include: Controlling the first collection structure in the first optical communication node to collect first environmental information; Controlling the first optical communication structure in the first optical communication node to transmit a first optical signal loaded with the first environmental information to the outside, and transmitting the first environmental information to the first optical fiber node; Controlling the first optical fiber node to convert the first environmental information into a first optical port signal and transmitting the first optical port signal to the optical fiber; Control the second optical fiber node to receive the first optical port signal from the optical fiber and convert the first optical port signal into the first electrical port signal, and control the second optical fiber node to transmit the first electrical port signal to the second optical communication node; The second optical communication node is controlled to extract the first environmental information from the first electrical port signal, and the second optical communication structure is controlled to transmit a second optical signal loaded with the first environmental information to the outside.

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