Optoelectronic conversion device, signal transmission method, system and launch vehicle

Abstract

The present application provides an optoelectronic conversion device, a signal transmission method, a system and a launch vehicle, relating to the technical field of launch vehicles. The optoelectronic conversion device includes: a signal control unit, including at least one instruction control module and a first indicator light corresponding to each instruction control module, configured to send a control instruction in response to a triggering operation for any one of the instruction control modules; a first signal conversion unit, configured to receive the control instruction, convert the control instruction into a first optical signal based on the control instruction, and send the first optical signal to a second signal conversion unit of another optoelectronic conversion device; convert the second optical signal sent by the second signal conversion unit into a second electrical signal, and control the corresponding first indicator light to emit light based on the second electrical signal. The embodiments of the present application realize the mutual conversion between electrical signals and optical signals, and effectively solve problems such as limited transmission distance of electrical signals and susceptibility to electromagnetic environment interference.

Description

Technical Field

[0001] This application relates to the technical field of launch vehicles. Specifically, this application relates to an optoelectronic conversion device, a signal transmission method, a system, and a launch vehicle. Background Art

[0002] Currently, for remotely controlling the internal passage of a launch vehicle, control instructions are generally connected to the front-end device through a dedicated cable for control by the front-end device, or wireless remote control is used, etc.

[0003] However, in the case of using a dedicated cable, due to the large number of control loops and complex interfaces between the back-end device and the front-end device, and the complex on-site environment, when the electromagnetic compatibility environment is relatively poor, the signal is easily interfered, and incorrect control signals are likely to be generated. Moreover, when using electrical signals for long-distance transmission, the quality of the electrical signals is likely to deteriorate, and the transmission distance is limited. Summary of the Invention

[0004] This application provides an optoelectronic conversion device, a signal transmission method, a system, and a launch vehicle to solve the technical problems in the related art where the transmission distance of electrical signals is limited or easily affected by the electromagnetic environment.

[0005] In a first aspect, an embodiment of this application provides an optoelectronic conversion device applied to a launch vehicle including a rocket control system. The optoelectronic conversion device includes:

[0006] A signal control unit including at least one instruction control module and a first indicator light corresponding to each instruction control module, configured to send a control instruction in response to a triggering operation for any one of the instruction control modules;

[0007] A first signal conversion unit connected to the signal control unit, configured to receive the control instruction, convert it into a first optical signal based on the control instruction, and send the first optical signal to the second signal conversion unit of another optoelectronic conversion device; convert the second optical signal sent by the second signal conversion unit into a second electrical signal, and control the corresponding first indicator light to emit light based on the second electrical signal;

[0008] Wherein, the second optical signal is converted by the second signal conversion unit based on a first feedback signal, the first feedback signal is returned by the rocket control system in response to receiving the first electrical signal, and the first electrical signal is converted by the second signal conversion unit based on the first optical signal.

[0009] In a possible implementation, the instruction control module includes at least one of the following: an ignition launch button, a power-off button, a power transfer button, a power supply button;

[0010] Among them, the ignition and launch button is used to control the ignition and launch of the launch vehicle, the power-off button is used to control the power-off of the electrical appliances in the launch vehicle, the power transfer button is used to control the conversion of the electrical appliances in the launch vehicle from ground power supply to battery power supply, and the power supply button is used to supply power to the electrical appliances in the launch vehicle.

[0011] In a possible implementation, the instruction control module is used to generate a control signal in response to a trigger operation;

[0012] The signal control unit further includes:

[0013] The digital input module, connected to the instruction control module and the first signal conversion unit, is used to receive the control signal, convert the control signal into a control instruction, and send the control instruction to the first signal conversion unit; the control instruction is a digital signal recognizable by the first signal conversion unit.

[0014] In a possible implementation, the first signal conversion unit includes:

[0015] The first signal processing module, connected to the signal control unit, is used to perform signal processing on the control instruction to obtain the processed control instruction; decode the second electrical signal, and control the corresponding first indicator light to emit light based on the decoded second electrical signal; the signal processing includes at least one of the following: filtering, signal encoding;

[0016] The first optical fiber transmitting module, connected to the first signal processing module, is used to convert the processed control instruction into a first optical signal and send the first optical signal to the second signal conversion unit of another optoelectronic conversion device;

[0017] The first optical fiber receiving module, connected to the first signal processing module, is used to convert the second optical signal into a second electrical signal and send the second electrical signal to the first signal processing module.

[0018] In a possible implementation, the first signal conversion unit is further used to obtain a test instruction of the test system, convert the test instruction into a third optical signal, and send the third optical signal to the second signal conversion unit; convert the fourth optical signal sent by the second signal conversion unit into a fourth electrical signal and return the fourth electrical signal to the test system;

[0019] Among them, the fourth optical signal is converted by the second signal conversion unit based on the second feedback signal returned by the rocket control system in response to receiving the third electrical signal, and the third electrical signal is converted by the second signal conversion unit based on the third optical signal; the fourth electrical signal is used to represent the test result of the rocket control system or the received test instruction.

[0020] In a possible implementation, the signal control unit further includes:

[0021] The digital input module is connected to the first signal conversion unit and is used to receive the test signal of the test system and convert the test signal into a test instruction; the test instruction is a digital signal recognizable by the first signal conversion unit.

[0022] The digital output module is connected to the first signal processing module and is used to send the fourth electrical signal sent by the first signal processing module to the corresponding test system in the form of a digital signal.

[0023] In a possible implementation manner, the signal control unit further includes at least one of the following: a second indicator light and a third indicator light;

[0024] The first signal conversion unit is further used to control the second indicator light to emit light when detecting that the first optical signal is sent to the second signal conversion unit; and / or, control the third indicator light to emit light when receiving the second optical signal sent by the second signal conversion unit.

[0025] In a possible implementation manner, the signal control unit further includes:

[0026] The self-check module is connected to the first signal conversion unit and is used to generate a self-check signal and send it to the first signal conversion unit in response to a trigger operation;

[0027] The fourth indicator light is connected to the first signal conversion unit and is used to indicate that the self-check of the optoelectronic conversion device is normal;

[0028] The fifth indicator light is connected to the first signal conversion unit and is used to indicate that the self-check of the optoelectronic conversion device is abnormal;

[0029] Wherein, the first signal conversion unit is further used to detect the transmission link of the optoelectronic conversion device based on the self-check signal to obtain a detection result; and control the fourth indicator light or the fifth indicator light to emit light based on the detection result;

[0030] The transmission link includes at least one of the following: the transmission link inside the signal control unit, the transmission link between the signal control unit and the first signal conversion unit, and the transmission link inside the first signal conversion unit.

[0031] In a second aspect, an embodiment of the present application provides a signal transmission method, which is applied to the optoelectronic conversion device in the first aspect and includes:

[0032] Receiving a control instruction sent by any instruction control module, and converting the control instruction to obtain a first optical signal;

[0033] Send the first optical signal to the second signal conversion unit of another optoelectronic conversion device, so that the second signal conversion unit converts the first optical signal into a first electrical signal, send the first electrical signal to the rocket control system, and convert the first feedback signal returned by the rocket control system into a second optical signal;

[0034] Convert the second optical signal sent by the second signal conversion unit into a second electrical signal;

[0035] Control the first indicator light corresponding to the command control module to emit light based on the second electrical signal.

[0036] In a third aspect, an embodiment of the present application provides a signal transmission system, including: the optoelectronic conversion device in the first aspect, and another optoelectronic conversion device including a second signal conversion unit;

[0037] The second signal conversion unit is connected to the first signal conversion unit, and is configured to convert the first optical signal sent by the first signal conversion unit into a first electrical signal, send the first electrical signal to the rocket control system, and convert the first feedback signal returned by the rocket control system into a second optical signal, and send the second optical signal to the first signal conversion unit.

[0038] In a possible implementation, the signal transmission system further includes:

[0039] A test system, connected to the first signal conversion unit, for sending a test signal to the first signal conversion unit, so that the first signal conversion unit converts the test signal into a test instruction; the test system includes at least one of the following: a power measurement and control system, a launch measurement and control system.

[0040] In a fourth aspect, an embodiment of the present application provides a launch vehicle, including: the optoelectronic conversion device in the first aspect; or, the signal transmission system in the third aspect.

[0041] The beneficial technical effects brought by the technical solutions provided by the embodiments of the present application include:

[0042] The signal control unit of the embodiment of the present application can send a control instruction in response to a triggering operation for any instruction control module. The first signal conversion unit can convert the control instruction into a first optical signal and send the first optical signal to the second signal conversion unit of another optoelectronic conversion device. The second signal conversion unit of another optoelectronic conversion device can convert the first optical signal into a first electrical signal, that is, the signal can be transmitted in the form of optoelectronic conversion. At the same time, the rocket control system can return a first feedback signal in response to receiving the first electrical signal. The second signal conversion unit converts the first feedback signal into a second optical signal, and the first signal conversion unit can convert the second optical signal sent by the second signal conversion unit into a second electrical signal, so as to control the corresponding first indicator light to emit light based on the second electrical signal, and further realize indicating that the rocket control system has received the control instruction by the way of the indicator light emitting.

[0043] The embodiment of the present application realizes the mutual conversion between electrical signals and optical signals by using optoelectronic conversion devices, and can replace the special cables between the front and rear end devices of the launch vehicle with optical fibers, effectively solving the problems such as limited transmission distance of electrical signals and susceptibility to electromagnetic environment interference. At the same time, the embodiment of the present application avoids the problems of high cable cost, large weight, and inconvenience in on-site laying and withdrawal by replacing the special cable with an optical fiber.

[0044] Additional aspects and advantages of the present application will be given in part in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. Brief Description of the Drawings

[0045] The above-mentioned and / or additional aspects and advantages of the present application will become apparent and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0046] Figure 1 is a schematic framework diagram of a signal transmission system provided by an embodiment of the present application;

[0047] Figure 2 is a schematic framework diagram of another signal transmission system provided by an embodiment of the present application;

[0048] Figure 3 is a schematic structural diagram of an optoelectronic conversion device provided by an embodiment of the present application;

[0049] Figure 4 is a schematic structural diagram of a first signal conversion unit provided by an embodiment of the present application;

[0050] Figure 5 is a schematic structural diagram of a signal control unit provided by an embodiment of the present application;

[0051] Figure 6Schematic diagram of another optoelectronic conversion device provided by an embodiment of the present application;

[0052] Figure 7 Flowchart of a signal transmission method provided by an embodiment of the present application.

[0053] Reference numerals:

[0054] 1 - Signal transmission system;

[0055] 10 - Optoelectronic conversion device;

[0056] 11 - Signal control unit, 111 - Instruction control module, 112 - First indicator light, 113 - Digital input module, 114 - Digital output module, 115 - Second indicator light, 116 - Third indicator light, 117 - Self - test module, 118 - Fourth indicator light, 119 - Fifth indicator light;

[0057] 12 - First signal conversion unit, 121 - First signal processing module, 122 - First optical fiber transmitting module, 123 - First optical fiber receiving module;

[0058] 20 - Rocket control system;

[0059] 30 - Test system. Detailed implementation manners

[0060] The embodiments of the present application will be described below with reference to the accompanying drawings in the present application. It should be understood that the implementation manners described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions of the embodiments of the present application.

[0061] Those skilled in the art of the present technology can understand that unless specifically stated, the "the" and "this" used here may also include the plural form. It should be further understood that the term "including" used in the specification of the present application means the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the implementation of other features, information, data, steps, operations, elements, components and / or their combinations, etc. supported by the art of the present technology. It should be understood that when we say an element is "connected" or "coupled" to another element, this element can be directly connected or coupled to the other element, or it can mean that this element and the other element establish a connection relationship through an intermediate element. In addition, the "connection" or "coupling" used here can include wireless connection or wireless coupling. The term "and / or" used here means at least one of the items defined by this term. For example, "A and / or B" can be implemented as "A", or implemented as "B", or implemented as "A and B".

[0062] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0063] The following will use specific embodiments to elaborate in detail on the technical solutions of this application and how the technical solutions of this application solve the above technical problems. It should be noted that the following embodiments can refer to, draw on, or combine with each other. For the same terms, similar features, and similar implementation steps in different embodiments, they will not be described repeatedly.

[0064] See Figure 1 As shown, the embodiments of this application provide a schematic framework diagram of a signal transmission system 1. The signal transmission system 1 includes: an optoelectronic conversion device A, an optoelectronic conversion device B, and a rocket control system 20. The optoelectronic conversion device A and the optoelectronic conversion device B are communicatively connected by light, and the optoelectronic conversion device B and the rocket control system 20 are communicatively connected by wire or wirelessly.

[0065] Among them, the optoelectronic conversion device A serves as the optoelectronic conversion device 10 of the embodiments of this application, and the optoelectronic conversion device B serves as another optoelectronic conversion device 10 of the embodiments of this application.

[0066] See Figure 2 As shown, the embodiments of this application provide another schematic framework diagram of a signal transmission system 1. The signal transmission system 1 includes: an optoelectronic conversion device A, an optoelectronic conversion device B, a rocket control system 20, and a test system 30. The test system 30 can output a test signal to the optoelectronic conversion device A, causing the optoelectronic conversion device A to generate a test instruction, and transmitting the test instruction through optoelectronic conversion for signal transmission to output to the rocket control system 20 for corresponding test operations.

[0067] See Figure 3 As shown, the embodiments of this application provide a schematic structural diagram of an optoelectronic conversion device 10. The optoelectronic conversion device 10 is applied to a launch vehicle including a rocket control system 20. The optoelectronic conversion device 10 includes: a signal control unit 11 and a first signal conversion unit 12.

[0068] The signal control unit 11 includes at least one instruction control module 111 and a first indicator light 112 corresponding to each instruction control module 111. The signal control unit 11 is used to send a control instruction in response to a trigger operation for any one of the instruction control modules 111.

[0069] The first signal conversion unit 12 is connected to the signal control unit 11. The first signal conversion unit 12 is configured to receive a control instruction, convert the control instruction into a first optical signal based on the control instruction, and send the first optical signal to the second signal conversion unit of another optoelectronic conversion device 10; convert the second optical signal sent by the second signal conversion unit into a second electrical signal, and control the corresponding first indicator light 112 to emit light based on the second electrical signal.

[0070] Wherein, the second optical signal is converted by the second signal conversion unit based on a first feedback signal, the first feedback signal is returned by the rocket control system 20 in response to receiving the first electrical signal, and the first electrical signal is converted by the second signal conversion unit based on the first optical signal.

[0071] In the embodiment of the present application, the signal control unit 11 can send a control instruction in response to a trigger operation on any instruction control module 111. The first signal conversion unit 12 can convert the control instruction into a first optical signal based on the control instruction, and send the first optical signal to the second signal conversion unit of another optoelectronic conversion device 10. The second signal conversion unit of another optoelectronic conversion device 10 can convert the first optical signal into a first electrical signal, that is, the signal can be transmitted in the form of optoelectronic conversion. At the same time, the rocket control system 20 can return a first feedback signal in response to receiving the first electrical signal. The second signal conversion unit converts the first feedback signal into a second optical signal, and the first signal conversion unit 12 can convert the second optical signal sent by the second signal conversion unit into a second electrical signal, so as to control the corresponding first indicator light 112 to emit light based on the second electrical signal, and further indicate that the rocket control system 20 has received the control instruction by the way of the indicator light emitting.

[0072] In the embodiment of the present application, the optoelectronic conversion device 10 is used to realize the mutual conversion between electrical signals and optical signals, and the special cable between the front-end and rear-end devices of the launch vehicle can be replaced by an optical fiber, effectively solving the problems such as limited transmission distance of electrical signals and susceptibility to electromagnetic environment interference. At the same time, in the embodiment of the present application, by replacing the special cable with an optical fiber, the problems of high cable cost, large weight, and inconvenience in on-site laying and withdrawal are avoided.

[0073] Optionally, the emission of the first indicator light 112 indicates that the rocket control system 20 has received the control instruction. The rocket control system 20 will return a first feedback signal when receiving the first electrical signal. The first feedback signal is used to indicate that the rocket control system 20 has received the control instruction. The embodiment of the present application can send and receive control instructions by means of optical fiber transmission, which is applicable to the scenario of transmitting control instructions.

[0074] The first signal conversion unit 12 can control the corresponding first indicator light 112 to emit light for a first predetermined time based on the second electrical signal. The first predetermined time can be set according to actual needs, such as 30 seconds, 1 minute, etc. The indicator lights in the embodiments of the present application can be LED lights.

[0075] See Figure 1 and Figure 3 As shown, the signal transmission system 1 includes: an optoelectronic conversion device 10, and another optoelectronic conversion device including a second signal conversion unit.

[0076] The second signal conversion unit is connected to the first signal conversion unit 12, and is used to convert the first optical signal sent by the first signal conversion unit 12 into a first electrical signal, send the first electrical signal to the rocket control system 20, and convert the first feedback signal returned by the rocket control system 20 into a second optical signal, and send the second optical signal to the first signal conversion unit 12.

[0077] See Figure 2 As shown, the signal transmission system 1 further includes: a test system 30. The test system 30 is connected to the first signal conversion unit 12. The test system 30 is used to send a test signal to the first signal conversion unit 12, so that the first signal conversion unit 12 converts the test signal into a test instruction; the test system 30 includes at least one of the following: a power measurement and control system, a launch measurement and control system.

[0078] Optionally, the signals of another optoelectronic conversion device and the rocket control system 20 are output in the form of switch quantities. The optoelectronic conversion and signal processing principles of another optoelectronic conversion device and the optoelectronic conversion device 10 in the embodiments of the present application are the same.

[0079] In some embodiments, the instruction control module 111 includes at least one of the following: an ignition and launch button, a power-off button, a power transfer button, a power supply button;

[0080] Among them, the ignition and launch button is used to control the ignition and launch of the launch vehicle, the power-off button is used to control the power-off of the electrical appliances in the launch vehicle, the power transfer button is used to control the conversion of the electrical appliances in the launch vehicle from ground power supply to battery power supply, and the power supply button is used to supply power to the electrical appliances in the launch vehicle.

[0081] Optionally, the ignition and launch button can output a rocket ignition and launch instruction, and the words "main command" can be marked near the ignition and launch button.

[0082] Optionally, the power-off buttons may include a first power-off button, a second power-off button, and a third power-off button. The first power-off button may output an emergency power-off instruction for the rocket control system 20, and the words "Emergency Shutdown" may be marked near the first power-off button. The second power-off button may output a pyrotechnic device power-off instruction, and the words "Pyrotechnic Power-off" may be marked near the second power-off button. The third power-off button may output an instrument power supply power-off instruction, and the words "Instrument Power-off" may be marked near the third power-off button.

[0083] Optionally, the power transfer buttons may include a first power transfer button and a second power transfer button. The first power transfer button may output an instruction to transfer the instrument power supply from ground power supply to battery power supply, and the words "B Power Transfer" may be marked near the first power transfer button. The second power transfer button may output an instruction to transfer the power supply of the safety controller from ground power to battery power, and the words "A Power Transfer" may be marked near the second power transfer button.

[0084] Optionally, the power supply buttons may include a first power supply button and a second power supply button. The first power supply button may output a solenoid valve power supply instruction, and the words "DI Power On" may be marked near the first power supply button. The second power supply button may output an engine controller power supply instruction, and the words "FI Power On" may be marked near the second power supply button.

[0085] See Figure 4 As shown, an embodiment of the present application provides a structural schematic diagram of a first signal conversion unit 12. The first signal conversion unit 12 includes: a first signal processing module 121, a first optical fiber transmitting module 122, and a first optical fiber receiving module 123.

[0086] The first signal processing module 121 is connected to the signal control unit 11. The first signal processing module 121 is configured to perform signal processing on the control instruction to obtain a processed control instruction; decode the second electrical signal, and control the corresponding first indicator light 112 to emit light based on the decoded second electrical signal; the signal processing includes at least one of the following: filtering, signal encoding.

[0087] The first optical fiber transmitting module 122 is connected to the first signal processing module 121. The first optical fiber transmitting module 122 is configured to convert the processed control instruction into a first optical signal, and send the first optical signal to the second signal conversion unit of another optoelectronic conversion device 10.

[0088] The first optical fiber receiving module 123 is connected to the first signal processing module 121. The first optical fiber receiving module 123 is configured to convert the second optical signal into a second electrical signal, and send the second electrical signal to the first signal processing module 121.

[0089] See Figure 5As shown in the figure, an embodiment of the present application provides a schematic structural diagram of a signal control unit 11. The signal control unit 11 includes at least one of the following: a second indicator light 115 and a third indicator light 116. The first signal conversion unit 12 is further configured to control the second indicator light 115 to emit light when detecting that the first optical signal is sent to the second signal conversion unit; and / or, control the third indicator light 116 to emit light when receiving the second optical signal sent by the second signal conversion unit.

[0090] Specifically, the emission of the second indicator light 115 indicates that the optoelectronic conversion device 10 has sent out a signal. The emission of the third indicator light 116 indicates that the optoelectronic conversion device 10 has received a signal. The first signal conversion unit 12 can control the second indicator light 115 to emit light for a second preset time and / or control the third indicator light 116 to emit light for a third preset time. The second preset time and the third preset time can be the same or different, and the second preset time and the third preset time can be set according to actual needs. For example, 5 seconds, 30 seconds, etc.

[0091] See Figure 5 As shown in the figure, the signal control unit 11 further includes: a self-check module 117, a fourth indicator light 118, and a fifth indicator light 119.

[0092] The self-check module 117 is connected to the first signal conversion unit 12. The self-check module 117 is configured to generate a self-check signal and send it to the first signal conversion unit 12 in response to a trigger operation.

[0093] The fourth indicator light 118 is connected to the first signal conversion unit 12. The fourth indicator light 118 is used to indicate that the self-check of the optoelectronic conversion device 10 is normal.

[0094] The fifth indicator light 119 is connected to the first signal conversion unit 12. The fifth indicator light 119 is used to indicate that the self-check of the optoelectronic conversion device 10 is abnormal.

[0095] Wherein, the first signal conversion unit 12 is further configured to detect the transmission link of the optoelectronic conversion device 10 based on the self-check signal to obtain a detection result; and control the fourth indicator light 118 or the fifth indicator light 119 to emit light based on the detection result.

[0096] The transmission link includes at least one of the following: the transmission link inside the signal control unit 11, the transmission link between the signal control unit 11 and the first signal conversion unit 12, and the transmission link inside the first signal conversion unit 12.

[0097] Specifically, when the fourth indicator light 118 emits light, it indicates that the self-check of the optoelectronic conversion device 10 is normal and all transmission links can work properly. When the fifth indicator light 119 emits light, it indicates that the self-check of the optoelectronic conversion device 10 is abnormal and there is a transmission link that cannot work properly. The first signal conversion unit 12 can control the fourth indicator light 118 to emit light for a fourth preset time and / or control the fifth indicator light 119 to emit light for a fifth preset time. The fourth preset time and the fifth preset time can be the same or different, and the fourth preset time and the fifth preset time can be set according to actual needs. For example, 5 seconds, 30 seconds, etc.

[0098] See Figure 6 As shown, an embodiment of the present application provides another structural schematic diagram of the optoelectronic conversion device 10. In combination with Figure 3 As shown, the instruction control module 111 is used to generate a control signal in response to a trigger operation. The signal control unit 11 further includes: a digital input module 113.

[0099] See Figure 6 As shown, the digital input module 113 is connected to the instruction control module 111 and the first signal conversion unit 12. The digital input module 113 is used to receive a control signal, convert the control signal into a control instruction, and send the control instruction to the first signal conversion unit 12; the control instruction is a digital signal recognizable by the first signal conversion unit 12.

[0100] In some embodiments, the first signal conversion unit 12 is further used to obtain a test instruction of the test system 30, convert the test instruction into a third optical signal, and send the third optical signal to the second signal conversion unit; convert the fourth optical signal sent by the second signal conversion unit into a fourth electrical signal, and return the fourth electrical signal to the test system 30.

[0101] Among them, the fourth optical signal is converted by the second signal conversion unit based on the second feedback signal returned by the rocket control system 20 in response to receiving the third electrical signal. The third electrical signal is converted by the second signal conversion unit based on the third optical signal; the fourth electrical signal is used to represent the test result of the rocket control system 20 or the received test instruction.

[0102] See Figure 6 As shown, the signal control unit 11 further includes: a digital input module 113 and a digital output module 114.

[0103] The digital input module 113 is connected to the first signal conversion unit 12. The digital input module 113 is used to receive a test signal of the test system 30 and convert the test signal into a test instruction; the test instruction is a digital signal recognizable by the first signal conversion unit 12.

[0104] The digital output module 114 is connected to the first signal processing module 121. The digital output module 114 is configured to send the fourth electrical signal sent by the first signal processing module 121 to the corresponding test system 30 in the form of a digital signal.

[0105] See Figure 6 As shown, the optoelectronic conversion device 10 further includes an optical fiber transceiver interface and a digital input / output interface. The optical fiber transceiver interface is used to connect to another optoelectronic conversion device, and the digital input / output interface is used to connect to the test system 30. The optoelectronic conversion device 10 is also connected to a power supply module. The power supply module can receive a 28V power input and output voltages of 3.3V and 5V to supply power to the optoelectronic conversion device 10. Buttons and indicator lights are provided on the surface of the optoelectronic conversion device 10. The button can also be a button with an indicator light. When the button is pressed and triggered, a control signal and light can be emitted.

[0106] Optionally, the buttons can include an ignition emission button, a power-off button, a power transfer button, and a power supply button. The indicator lights can include a first indicator light 112, a second indicator light 115, a third indicator light 116, a fourth indicator light 118, and a fifth indicator light 119.

[0107] Optionally, the first signal processing module 121 can be an FPGA signal processing module, and the first signal processing module 121 can also be replaced by other modules with equivalent processing functions, such as a dedicated SOC chip, a DSP chip, etc.

[0108] See Figure 6 As shown, the power supply module can supply power to other modules of the optoelectronic conversion device 10; the first signal processing module 121 can filter and encode the digital signals generated by the buttons, indicator lights, or digital input module 113, and send the encoded data through the first optical fiber sending module 122; at the same time, the first signal processing module 121 can also decode the signals received by the first optical fiber receiving module 123 and output the decoded data as a digital command control signal.

[0109] The first optical fiber receiving module 123 is configured to convert the optical signal into an electrical signal and output it to the first signal processing module 121; the first optical fiber sending module 122 is configured to convert the electrical signal into an optical signal and send it out; the digital input module 113 is configured to collect external digital commands and button commands and output them to the first signal processing module 121; the digital output module 114 sends out the control signal output by the first signal processing module 121 in the form of a digital signal.

[0110] The button can generate button instructions and transmit them to the first signal processing module 121, and can display the instruction status received by the first signal processing module 121 through the LED indicator light; the optical fiber transceiver interface is connected to the first optical fiber receiving module 123 and the first optical fiber transmitting module 122, and is responsible for receiving and transmitting optical fiber signals; the digital input / output interface is connected to the digital input module 113 and the digital output module 114, and is responsible for transmitting digital signals.

[0111] Optionally, the second signal conversion unit of another optoelectronic conversion device 10 includes a second signal processing module, a second optical fiber transmitting module, and a second optical fiber receiving module. The functions of the second signal processing module, the second optical fiber transmitting module, and the second optical fiber receiving module respectively correspond to those of the first signal processing module 121, the first optical fiber transmitting module 122, and the first optical fiber receiving module 123. Another optoelectronic conversion device 10 may further include a digital input module 113 and a digital output module 114, and input and output the transmitted signals in digital form.

[0112] Combined Figure 1 and Figure 6 As shown, the optoelectronic conversion device A is a front-end device, and the optoelectronic conversion device B is a back-end device. The back-end optoelectronic conversion device B is connected to the internal control signal of the rocket through the digital input / output interface, and the front-end optoelectronic conversion device A is connected to the back-end optoelectronic conversion device B through an optical fiber. When the front end needs to send a control instruction to the rocket control system 20, the front end can send an instruction through the button. After the front-end optoelectronic conversion device A receives the corresponding button instruction, it converts the electrical signal into an optical signal and sends it to the back-end optoelectronic conversion device B. After the back-end optoelectronic conversion device B receives the optical fiber signal, it converts the optical signal into an electrical signal and sends it to the rocket control system 20, thereby realizing the control of the internal signals of the rocket by the front end.

[0113] The digital signal generated inside the rocket can be transmitted to the back-end optoelectronic conversion device B through the digital input / output interface. The back-end optoelectronic conversion device B converts the electrical signal into an optical signal and sends it back to the front-end optoelectronic conversion device A through the optical fiber. The back-end optoelectronic conversion device B then converts the received optical signal into an electrical signal and displays it through the LED indicator light, thereby realizing the monitoring of the internal variables of the rocket by the front-end device.

[0114] In the embodiment of the present application, using an optical fiber to replace a dedicated cable can increase the signal transmission distance. The optical fiber is light in weight, convenient for on-site laying and withdrawal, and avoids the problems of high cable cost, large weight, and inconvenience for on-site laying and withdrawal. The first signal processing module 121, the first optical fiber transmitting module 122, the first optical fiber receiving module 123, the digital input module 113, and the digital output module 114, etc., for receiving and transmitting optoelectronic signals in the optoelectronic conversion device 10 of the embodiment of the present application can adopt a dual-redundancy design, which can effectively increase the reliability of signal transmission and avoid generating incorrect control signals.

[0115] Based on the same inventive concept, an embodiment of the present application provides a launch vehicle, including: the optoelectronic conversion device 10 of the embodiment of the present application; or, the signal transmission system 1 of the embodiment of the present application.

[0116] The launch vehicle provided by the embodiment of the present application includes the optoelectronic conversion device 10 of the embodiment of the present application, and has the same inventive concept and the same beneficial effects as the embodiments described above for the optoelectronic conversion device 10. The content not shown in detail in this launch vehicle can be referred to the above-described embodiments and will not be elaborated herein.

[0117] See Figure 7 As shown, an embodiment of the present application provides a flowchart of a signal transmission method. This signal transmission method is applied to the optoelectronic conversion device 10 of the embodiment of the present application, and the signal transmission method includes: S701 to S704.

[0118] S701. Receive a control instruction sent by any instruction control module 111, and convert the control instruction into a first optical signal based on the control instruction.

[0119] S702. Send the first optical signal to the second signal conversion unit of another optoelectronic conversion device 10, so that the second signal conversion unit converts the first optical signal into a first electrical signal, sends the first electrical signal to the rocket control system 20, and converts the first feedback signal returned by the rocket control system 20 into a second optical signal.

[0120] S703. Convert the second optical signal sent by the second signal conversion unit into a second electrical signal.

[0121] S704. Control the first indicator light 112 corresponding to the instruction control module 111 to emit light based on the second electrical signal.

[0122] Optionally, in step S701, converting the control instruction into a first optical signal based on the control instruction includes: performing signal processing on the control instruction to obtain a processed control instruction, and converting the first optical signal based on the processed control instruction; the signal processing includes at least one of the following: filtering, signal encoding.

[0123] Optionally, in step S704, controlling the first indicator light 112 corresponding to the instruction control module 111 to emit light based on the second electrical signal includes: decoding the second electrical signal and controlling the corresponding first indicator light 112 to emit light based on the decoded second electrical signal.

[0124] Optionally, the signal transmission method further includes: obtaining a test instruction of the test system 30, converting the test instruction into a third optical signal, and sending the third optical signal to the second signal conversion unit; converting the fourth optical signal sent by the second signal conversion unit into a fourth electrical signal, and returning the fourth electrical signal to the test system 30. Wherein, the fourth optical signal is converted by the second signal conversion unit based on the second feedback signal returned by the rocket control system 20 in response to receiving the third electrical signal, and the third electrical signal is converted by the second signal conversion unit based on the third optical signal; the fourth electrical signal is used to represent the test result of the rocket control system 20 or the received test instruction.

[0125] Optionally, the signal transmission method further includes: controlling the second indicator light 115 to emit light when detecting that the first optical signal is sent to the second signal conversion unit; and / or, controlling the third indicator light 116 to emit light when receiving the second optical signal sent by the second signal conversion unit.

[0126] Optionally, the signal transmission method further includes: detecting the transmission link of the optoelectronic conversion device 10 based on the self-check signal to obtain a detection result; controlling the fourth indicator light 118 or the fifth indicator light 119 to emit light based on the detection result.

[0127] The signal transmission method provided by the embodiment of the present application is applied to the optoelectronic conversion device 10 of the embodiment of the present application, and has the same inventive concept and the same beneficial effects as the various embodiments described in the first signal conversion unit 12 of the previous optoelectronic conversion device 10. For the content not shown in detail in the signal transmission method, reference may be made to the previous embodiments, and details will not be described herein again.

[0128] Those skilled in the art of the present technology can understand that the steps, measures, and solutions in the various operations, methods, and processes discussed in the present application can be alternated, changed, combined, or deleted. Further, the other steps, measures, and solutions in the various operations, methods, and processes discussed in the present application can also be alternated, changed, rearranged, decomposed, combined, or deleted. Further, the steps, measures, and solutions in the related technologies that are the same as those disclosed in the present application can also be alternated, changed, rearranged, decomposed, combined, or deleted.

[0129] In the description of the present application, the directions or position relationships indicated by the words "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are the exemplary directions or position relationships based on the drawings, which are for the convenience of describing or simplifying the embodiments of the present application, rather than indicating or implying that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0130] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0131] In the description of this application, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application may be understood according to specific circumstances.

[0132] In the description of this specification, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0133] The above are only some embodiments of this application. It should be pointed out that for those of ordinary skill in the art, without departing from the technical concept of the solution of this application, other similar implementation means based on the technical idea of this application also belong to the protection scope of the embodiments of this application.

Claims

1. A photoelectric conversion device, characterized in that, Applied to a launch vehicle including a rocket control system, the optoelectronic conversion device includes: A signal control unit, including at least one instruction control module and a first indicator light corresponding to each of the instruction control modules, for sending a control instruction in response to a trigger operation for any one of the instruction control modules; A first signal conversion unit, including: a first signal processing module, connected to the signal control unit, for receiving the control instruction and performing signal processing on the control instruction to obtain a processed control instruction; decoding a second electrical signal and controlling the corresponding first indicator light to emit light based on the decoded second electrical signal; the signal processing includes at least one of the following: filtering, signal encoding; A first optical fiber transmitting module, connected to the first signal processing module, for converting the processed control instruction into the first optical signal and transmitting the first optical signal to the second signal conversion unit of another optoelectronic conversion device; A first optical fiber receiving module, connected to the first signal processing module, converting the second optical signal transmitted by the second signal conversion unit into a second electrical signal and transmitting the second electrical signal to the first signal processing module; Wherein, the second optical signal is converted by the second signal conversion unit based on a first feedback signal, the first feedback signal is returned by the rocket control system in response to receiving a first electrical signal, and the first electrical signal is converted by the second signal conversion unit based on the first optical signal; The first signal conversion unit is further configured to obtain a test instruction of a test system, convert the test instruction into a third optical signal, and transmit the third optical signal to the second signal conversion unit; convert the fourth optical signal transmitted by the second signal conversion unit into a fourth electrical signal and return the fourth electrical signal to the test system; Wherein, the fourth optical signal is converted by the second signal conversion unit based on a second feedback signal returned by the rocket control system in response to receiving a third electrical signal, and the third electrical signal is converted by the second signal conversion unit based on the third optical signal; the fourth electrical signal is used to represent the test result of the rocket control system or the received test instruction.

2. The optoelectronic conversion device according to claim 1, characterized in that, The instruction control module includes at least one of the following: an ignition and launch button, a power-off button, a power transfer button, a power supply button; Wherein, the ignition and launch button is used to control the ignition and launch of the launch vehicle, the power-off button is used to control the power-off of the electrical appliances in the launch vehicle, the power transfer button is used to control the conversion of the electrical appliances in the launch vehicle from ground power supply to battery power supply, and the power supply button is used to supply power to the electrical appliances in the launch vehicle.

3. The optoelectronic conversion device according to claim 1, characterized in that The instruction control module is configured to generate a control signal in response to a trigger operation; The signal control unit further includes: A switch input module, connected to the instruction control module and the first signal conversion unit, for receiving the control signal, converting the control signal into the control instruction, and sending the control instruction to the first signal conversion unit; the control instruction is a switch signal recognizable by the first signal conversion unit.

4. The optoelectronic conversion device according to claim 1, characterized in that, The signal control unit further includes: A digital input module, connected to the first signal conversion unit, for receiving a test signal from a test system and converting the test signal into a test instruction; the test instruction is a digital signal recognizable by the first signal conversion unit; A digital output module, connected to the first signal processing module, for sending the fourth electrical signal sent by the first signal processing module to the corresponding test system in the form of a digital signal.

5. The optoelectronic conversion device according to claim 1, characterized in that, The signal control unit further includes at least one of the following: a second indicator light, a third indicator light; The first signal conversion unit is further configured to control the second indicator light to emit light when detecting that the first optical signal is sent to the second signal conversion unit; and / or, control the third indicator light to emit light when receiving the second optical signal sent by the second signal conversion unit.

6. The optoelectronic conversion device according to claim 1, wherein, The signal control unit further includes: A self-check module, connected to the first signal conversion unit, for generating a self-check signal and sending it to the first signal conversion unit in response to a trigger operation; A fourth indicator light, connected to the first signal conversion unit, for indicating that the self-check of the optoelectronic conversion device is normal A fifth indicator light, connected to the first signal conversion unit, for indicating that the self-check of the optoelectronic conversion device is abnormal; Wherein, the first signal conversion unit is further configured to detect the transmission link of the optoelectronic conversion device based on the self-check signal to obtain a detection result; and control the fourth indicator light or the fifth indicator light to emit light based on the detection result; The transmission link includes at least one of the following: the transmission link inside the signal control unit, the transmission link between the signal control unit and the first signal conversion unit, the transmission link inside the first signal conversion unit.

7. A signal transmission method, characterized in that, Applied to the optoelectronic conversion device according to any one of claims 1-6, including: Receiving a control instruction sent by any instruction control module, and converting the control instruction into a first optical signal; Sending the first optical signal to the second signal conversion unit of another optoelectronic conversion device, so that the second signal conversion unit converts the first optical signal into a first electrical signal, sends the first electrical signal to the rocket control system, and converts the first feedback signal returned by the rocket control system into a second optical signal; Converting the second optical signal sent by the second signal conversion unit into a second electrical signal; Controlling the first indicator light corresponding to the instruction control module to emit light based on the second electrical signal.

8. A signal transmission system, characterized in that, Including: The optoelectronic conversion device according to any one of claims 1-6, and another optoelectronic conversion device including a second signal conversion unit; The second signal conversion unit is connected to the first signal conversion unit, and is configured to convert the first optical signal sent by the first signal conversion unit into a first electrical signal, send the first electrical signal to the rocket control system, and convert the first feedback signal returned by the rocket control system into a second optical signal, and send the second optical signal to the first signal conversion unit.

9. The signal transmission system according to claim 8, characterized in that, Further includes: A test system, connected to the first signal conversion unit, is configured to send a test signal to the first signal conversion unit, so that the first signal conversion unit converts the test signal into a test instruction; the test system includes at least one of the following: a power measurement and control system, a launch measurement and control system.

10. A launch vehicle, characterized in that, Comprising: The optoelectronic conversion device according to any one of claims 1-6; Or, the signal transmission system according to any one of claims 8-9.

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