Photoelectric conversion device, signal transmission method and system and carrier rocket

Abstract

The invention provides a photoelectric conversion device, a signal transmission method and system and a carrier rocket, and relates to the technical field of carrier rockets. The photoelectric conversion device comprises a signal control unit which comprises at least one instruction control module and a first indicating lamp corresponding to each instruction control module and is used for sending a control instruction in response to a trigger operation for any instruction control module; the first signal conversion unit is used for receiving the control instruction, obtaining a first optical signal through conversion based on the control instruction, and sending the first optical signal to the second signal conversion unit of the other photoelectric conversion device; and converting a second optical signal sent by the second signal conversion unit to obtain a second electric signal, and controlling the corresponding first indicating lamp to emit light based on the second electric signal. According to the embodiment of the invention, mutual conversion between an electric signal and an optical signal is realized, and the problems of limited electric signal transmission distance and susceptibility to electromagnetic environment interference are effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of launch vehicles. Specifically, the present application relates to a photoelectric conversion device, a signal transmission method, a system and a launch vehicle. Background Art

[0002] At present, remote control of the internal passages of a launch vehicle is generally carried out by connecting the control instructions to the front-end equipment through a dedicated cable, and then controlling it by the front-end equipment, or by using wireless remote control.

[0003] However, when using dedicated cables, due to the large number of control loops between the back-end equipment and the front-end equipment, the complex interface, the complex on-site environment, and the poor electromagnetic compatibility environment, the signal is easily interfered and erroneous control signals are easily generated. Moreover, when using electrical signals for long-distance transmission, the quality of the electrical signals is prone to deterioration and the transmission distance is limited. Summary of the invention

[0004] The present application proposes a photoelectric conversion device, a signal transmission method, a system and a launch vehicle to solve the technical problems existing in related technologies that the transmission distance of electrical signals is limited or they are susceptible to interference from the electromagnetic environment.

[0005] In a first aspect, an embodiment of the present application provides a photoelectric conversion device, which is applied to a launch vehicle including a rocket control system, and the photoelectric conversion device includes: A signal control unit, comprising at least one instruction control module and a first indicator light corresponding to each instruction control module, for sending a control instruction in response to a trigger operation for any instruction control module; A first signal conversion unit is connected to the signal control unit and is used to receive a control instruction, convert the first optical signal based on the control instruction, and send the first optical signal to a second signal conversion unit of another photoelectric conversion device; convert the second optical signal sent by the second signal conversion unit to obtain a second electrical signal, and control the corresponding first indicator light to emit light based on the second electrical signal; The second optical signal is converted by the second signal conversion unit based on the 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.

[0006] In a possible implementation, the command control module includes at least one of the following: an ignition and transmission button, a power-off button, a power-on button, and a power supply button; 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-on 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 power the electrical appliances in the launch vehicle.

[0007] In a possible implementation, the instruction control module is used to generate a control signal in response to a trigger operation; The signal control unit also includes: The switch input module is connected to the instruction control module and the first signal conversion unit, and is used to receive the control signal, convert the control signal into a control instruction, and send it to the first signal conversion unit; the control instruction is a switch signal recognizable by the first signal conversion unit.

[0008] In a possible implementation, the first signal conversion unit includes: The first signal processing module is connected to the signal control unit and 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 based on the decoded second electrical signal; the signal processing includes at least one of the following: filtering and signal coding; A first optical fiber sending module, connected to the first signal processing module, for converting the processed control instruction to obtain a first optical signal, and sending the first optical signal to a second signal conversion unit of another optoelectronic conversion device; The first optical fiber receiving module is connected to the first signal processing module, and is used to obtain a second electrical signal based on the second optical signal conversion, and send the second electrical signal to the first signal processing module.

[0009] In a possible implementation, the first signal conversion unit is further used to obtain a test instruction of the test system, convert the third optical signal based on the test instruction, and send the third optical signal to the second signal conversion unit; convert the fourth optical signal sent by the second signal conversion unit to obtain a fourth electrical signal, and return the fourth electrical signal to the test system; Among them, the fourth optical signal is obtained by converting the second feedback signal returned by the second signal conversion unit based on the rocket control system in response to receiving the third electrical signal, and the third electrical signal is obtained by the second signal conversion unit based on the third optical signal; the fourth electrical signal is used to characterize the test results of the rocket control system or receive test instructions.

[0010] In a possible implementation, the signal control unit further includes: The switch quantity 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 switch quantity signal recognizable by the first signal conversion unit; The switch 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 switch signal.

[0011] In a possible implementation, 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 when detecting that the first optical signal is sent to the second signal conversion unit; and / or, control the third indicator light when receiving the second optical signal sent by the second signal conversion unit.

[0012] In a possible implementation, the signal control unit further includes: A self-check module, connected to the first signal conversion unit, for generating a self-check signal in response to a trigger operation and sending the self-check signal to the first signal conversion unit; A fourth indicator light, connected to the first signal conversion unit, for indicating that the self-test of the photoelectric conversion device is normal; A fifth indicator light, connected to the first signal conversion unit, for indicating a self-test abnormality of the photoelectric conversion device; The first signal conversion unit is further used to detect the transmission link of the photoelectric conversion device based on the self-test signal to obtain a detection result; based on the detection result, control the fourth indicator light or the fifth indicator light to emit light; The transmission link includes at least one of the following: a transmission link inside the signal control unit, a transmission link between the signal control unit and the first signal conversion unit, and a transmission link inside the first signal conversion unit.

[0013] In a second aspect, an embodiment of the present application provides a signal transmission method, which is applied to the photoelectric conversion device of the first aspect, comprising: Receiving a control instruction sent by any instruction control module, and converting the control instruction to obtain a first optical signal; Sending the first optical signal to a second signal conversion unit of another photoelectric 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 a rocket control system, and converts the first electrical signal into a second optical signal based on a first feedback signal returned by the rocket control system; Obtain a second electrical signal based on the second optical signal sent by the second signal conversion unit; The first indicator light corresponding to the command control module is controlled to emit light based on the second electrical signal.

[0014] In a third aspect, an embodiment of the present application provides a signal transmission system, comprising: the photoelectric conversion device of the first aspect, and another photoelectric conversion device including a second signal conversion unit; The second signal conversion unit is connected to the first signal conversion unit, and is used to convert a 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 a 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.

[0015] In a possible implementation, the signal transmission system further includes: The test system is connected to the first signal conversion unit and is used to send a test signal to the first signal conversion unit so that the first signal conversion unit obtains a test instruction based on the test signal conversion; the test system includes at least one of the following: a power measurement and control system and a measurement and control system.

[0016] In a fourth aspect, an embodiment of the present application provides a launch vehicle, comprising: the optoelectronic conversion device of the first aspect; or, the signal transmission system of the third aspect.

[0017] The beneficial technical effects brought about by the technical solution provided by the embodiment of the present application include: The signal control unit of the embodiment of the present application can send a control instruction in response to a trigger operation for any instruction control module. The first signal conversion unit can convert the control instruction to obtain a first optical signal, and send the first optical signal to the second signal conversion unit of another photoelectric conversion device. The second signal conversion unit of the other photoelectric conversion device can convert the first optical signal to obtain a first electrical signal, that is, the signal can be transmitted by photoelectric conversion. At the same time, the rocket control system can return a first feedback signal in response to receiving the first electrical signal, and the second signal conversion unit can convert the first feedback signal to obtain a second optical signal. The first signal conversion unit can convert the second optical signal sent by the second signal conversion unit to obtain a second electrical signal, thereby controlling the corresponding first indicator light based on the second electrical signal, thereby realizing that the rocket control system receives the control instruction by means of the indicator light.

[0018] The embodiment of the present application uses a photoelectric conversion device to realize the mutual conversion between electrical signals and optical signals. The dedicated cables between the front and rear end equipment of the launch vehicle can be replaced by optical fibers, which effectively solves the problems of limited transmission distance of electrical signals and susceptibility to electromagnetic interference. At the same time, the embodiment of the present application replaces the dedicated cables with optical fibers, avoiding the problems of high cable cost, heavy weight, and inconvenience in on-site laying and withdrawal.

[0019] Additional aspects and advantages of the present application will be partially given 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

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 A schematic diagram of a signal transmission system provided in an embodiment of the present application; Figure 2 A schematic diagram of another signal transmission system provided in an embodiment of the present application; Figure 3 A schematic diagram of the structure of a photoelectric conversion device provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of a first signal conversion unit provided in an embodiment of the present application; Figure 5 A schematic diagram of the structure of a signal control unit provided in an embodiment of the present application; Figure 6 A schematic diagram of the structure of another photoelectric conversion device provided in an embodiment of the present application; Figure 7 A flowchart of a signal transmission method provided in an embodiment of the present application.

[0021] Reference numerals: 1-Signal transmission system; 10- Photoelectric conversion device; 11-signal control unit, 111-command control module, 112-first indicator light, 113-switch input module, 114-switch output module, 115-second indicator light, 116-third indicator light, 117-self-test module, 118-fourth indicator light, 119-fifth indicator light; 12-first signal conversion unit, 121-first signal processing module, 122-first optical fiber sending module, 123-first optical fiber receiving module; 20-Rocket control system; 30-Test the system. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0023] It will be understood by those skilled in the art that, unless specifically stated, the "said" and "the" used herein may also include plural forms. It should be further understood that the wording "including" used in the specification of the present application refers to the presence of the 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 combinations thereof supported by the present technical field. It should be understood that when we say that an element is "connected" or "coupled" to another element, the element may be directly connected or coupled to the other element, or it may refer to the connection relationship between the element and the other element through an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein refers to at least one of the items defined by the term, for example, "A and / or B" may be implemented as "A", or as "B", or as "A and B".

[0024] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0025] The following is a detailed description of the technical solution of the present application and how the technical solution of the present application solves the above technical problems with specific embodiments. It should be noted that the following implementations can refer to, draw on or combine with each other, and the same terms, similar features and similar implementation steps in different implementations will not be described repeatedly.

[0026] See also Figure 1 As shown, an embodiment of the present application provides a schematic diagram of a framework of a signal transmission system 1. The signal transmission system 1 includes: a photoelectric conversion device A, a photoelectric conversion device B, and a rocket control system 20. The photoelectric conversion device A and the photoelectric conversion device B are connected via optical communication, and the photoelectric conversion device B and the rocket control system 20 are connected via wired or wireless communication.

[0027] The photoelectric conversion device A is used as the photoelectric conversion device 10 of the embodiment of the present application, and the photoelectric conversion device B is used as another photoelectric conversion device 10 of the embodiment of the present application.

[0028] See also Figure 2 As shown, the embodiment of the present application provides a schematic diagram of the framework of another signal transmission system 1. The signal transmission system 1 includes: a photoelectric conversion device A, a photoelectric conversion device B, a rocket control system 20, and a test system 30. The test system 30 can output a test signal to the photoelectric conversion device A, so that the photoelectric conversion device A generates a test instruction, and transmits the test instruction by means of photoelectric conversion to output it to the rocket control system 20 for corresponding test operations.

[0029] See also Figure 3As shown, the embodiment of the present application provides a schematic structural diagram of a photoelectric conversion device 10. The photoelectric conversion device 10 is applied to a launch vehicle including a rocket control system 20, and the photoelectric conversion device 10 includes: a signal control unit 11 and a first signal conversion unit 12.

[0030] 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 on any instruction control module 111 .

[0031] The first signal conversion unit 12 is connected to the signal control unit 11. The first signal conversion unit 12 is used to receive a control instruction, convert a first optical signal based on the control instruction, and send the first optical signal to a second signal conversion unit of another photoelectric conversion device 10; convert a second optical signal sent by the second signal conversion unit to obtain a second electrical signal, and control the corresponding first indicator light 112 to emit light based on the second electrical signal. Among them, the second optical signal is converted by the second signal conversion unit based on the 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.

[0032] The signal control unit 11 of the embodiment of the present application can send a control instruction in response to a trigger operation for any instruction control module 111, and the first signal conversion unit 12 can convert the control instruction to obtain a first optical signal, and send the first optical signal to the second signal conversion unit of another photoelectric conversion device 10. The second signal conversion unit of another photoelectric conversion device 10 can convert the first optical signal to obtain a first electrical signal, that is, the signal can be transmitted in the form of photoelectric conversion. At the same time, the rocket control system 20 can return a first feedback signal in response to receiving the first electrical signal, and the second signal conversion unit can convert the first feedback signal to obtain a second optical signal. The first signal conversion unit 12 can convert the second optical signal sent by the second signal conversion unit to obtain a second electrical signal, thereby controlling the corresponding first indicator light 112 to emit light based on the second electrical signal, thereby realizing that the rocket control system 20 receives the control instruction by emitting the indicator light.

[0033] The embodiment of the present application uses a photoelectric conversion device 10 to realize the mutual conversion between electrical signals and optical signals, and the dedicated cables between the front and rear end equipment of the launch vehicle can be replaced by optical fibers, effectively solving the problems of limited transmission distance of electrical signals and susceptibility to electromagnetic interference. At the same time, the embodiment of the present application replaces the dedicated cables with optical fibers, avoiding the problems of high cable cost, heavy weight, and inconvenience in on-site laying and withdrawal.

[0034] Optionally, the first indicator light 112 lights up to indicate that the rocket control system 20 has received the control command. The rocket control system 20 returns a first feedback signal after receiving the first electrical signal. The first feedback signal is used to indicate that the rocket control system 20 has received the control command. The embodiment of the present application uses optical fiber transmission to send and receive control commands, which is suitable for scenarios where control commands are transmitted.

[0035] 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, and the first predetermined time can be set according to actual needs, such as 30 seconds, 1 minute, etc. The indicator light of the embodiment of the present application can be an LED light.

[0036] See also Figure 1 and Figure 3 As shown, the signal transmission system 1 includes: a photoelectric conversion device 10, and another photoelectric conversion device including a second signal conversion unit.

[0037] The second signal conversion unit is connected to the first signal conversion unit 12, and is used to convert a first optical signal sent by the first signal conversion unit 12 into a first electrical signal, and send the first electrical signal to the rocket control system 20, and to convert a 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.

[0038] See also Figure 2 As shown, the signal transmission system 1 also includes: a test system 30. The test system 30 is connected to the first signal conversion unit 12, and 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 obtains a test instruction based on the test signal conversion; the test system 30 includes at least one of the following: a power measurement and control system, a measurement and control system.

[0039] Optionally, the signal of the other photoelectric conversion device and the rocket control system 20 is output in the form of a switch quantity. The principle of photoelectric conversion and signal processing of the other photoelectric conversion device is consistent with that of the photoelectric conversion device 10 of the embodiment of the present application.

[0040] In some embodiments, the command control module 111 includes at least one of the following: an ignition and transmission button, a power-off button, a power-on button, and a power supply button; 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-on 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 power the electrical appliances in the launch vehicle.

[0041] Optionally, the ignition and launch button can output a rocket ignition and launch instruction, and the words "Master Order" can be marked near the ignition and launch button.

[0042] Optionally, the power-off button 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 of 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 an pyrotechnic 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-off instruction, and the words "instrument power-off" may be marked near the third power-off button.

[0043] Optionally, the power transfer button may include a first power transfer button and a second power transfer button, the first power transfer button may output an instruction for transferring the power of the instrument from the ground power to the battery power, and the words "B transfer" may be marked near the first power transfer button. The second power transfer button may output an instruction for transferring the power of the safety controller from the ground power to the battery power, and the words "A transfer" may be marked near the second power transfer button.

[0044] Optionally, the power button may include a first power button and a second power button, the first power button may output a solenoid valve power supply instruction, and the words "DI power on" may be marked near the first power button. The second power button may output an engine controller power supply instruction, and the words "FI power on" may be marked near the second power button.

[0045] See also Figure 4 As shown, the embodiment of the present application provides a schematic diagram of the structure of a first signal conversion unit 12. The first signal conversion unit 12 includes: a first signal processing module 121, a first optical fiber sending module 122 and a first optical fiber receiving module 123.

[0046] The first signal processing module 121 is connected to the signal control unit 11, and the first signal processing module 121 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 112 to light up based on the decoded second electrical signal; the signal processing includes at least one of the following: filtering, signal encoding.

[0047] The first optical fiber sending module 122 is connected to the first signal processing module 121 . The first optical fiber sending module 122 is used to convert the processed control instruction to obtain a first optical signal and send the first optical signal to a second signal conversion unit of another optoelectronic conversion device 10 .

[0048] The first optical fiber receiving module 123 is connected to the first signal processing module 121 . The first optical fiber receiving module 123 is used to obtain a second electrical signal based on the second optical signal conversion and send the second electrical signal to the first signal processing module 121 .

[0049] See also Figure 5As shown, an embodiment of the present application provides a structural schematic 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 also used to control the second indicator light 115 to emit light when detecting that the first light signal is sent to the second signal conversion unit; and / or, when receiving the second light signal sent by the second signal conversion unit, control the third indicator light 116 to emit light.

[0050] Specifically, the second indicator light 115 lights up to indicate that the photoelectric conversion device 10 has sent a signal. The third indicator light 116 lights up to indicate that the photoelectric conversion device 10 has received a signal. The first signal conversion unit 12 can control the second indicator light 115 to light up for a second preset time and / or control the third indicator light 116 to light up for a third preset time. The second preset time and the third preset time can be the same or different. The second preset time and the third preset time can be set according to actual needs, for example, 5 seconds, 30 seconds, etc.

[0051] See also Figure 5 As shown, the signal control unit 11 further includes: a self-check module 117 , a fourth indicator light 118 and a fifth indicator light 119 .

[0052] The self-check module 117 is connected to the first signal conversion unit 12 , and is used for generating a self-check signal in response to a trigger operation and sending the self-check signal to the first signal conversion unit 12 .

[0053] The fourth indicator light 118 is connected to the first signal conversion unit 12 , and is used to indicate that the self-test of the photoelectric conversion device 10 is normal.

[0054] The fifth indicator light 119 is connected to the first signal conversion unit 12 , and is used to indicate that a self-test abnormality of the photoelectric conversion device 10 occurs.

[0055] The first signal conversion unit 12 is further used to detect the transmission link of the photoelectric conversion device 10 based on the self-test signal to obtain a detection result; based on the detection result, the fourth indicator light 118 or the fifth indicator light 119 is controlled to emit light.

[0056] The transmission link includes at least one of the following: a transmission link inside the signal control unit 11 , a transmission link between the signal control unit 11 and the first signal conversion unit 12 , and a transmission link inside the first signal conversion unit 12 .

[0057] Specifically, the fourth indicator light 118 is lit, indicating that the self-test of the photoelectric conversion device 10 is normal and all transmission links can work normally. The fifth indicator light 119 is lit, indicating that the self-test of the photoelectric conversion device 10 is abnormal, and there is a transmission link that cannot work normally. The first signal conversion unit 12 can control the fourth indicator light 118 to light up for a fourth preset time and / or control the fifth indicator light 119 to light up for a fifth preset time. The fourth preset time and the fifth preset time can be the same or different. The fourth preset time and the fifth preset time can be set according to actual needs, for example, 5 seconds, 30 seconds, etc.

[0058] See also Figure 6 As shown, the present application embodiment provides a structural schematic diagram of another photoelectric conversion device 10. 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 also includes: a switch input module 113.

[0059] See also Figure 6 As shown, the switch input module 113 is connected to the instruction control module 111 and the first signal conversion unit 12. The switch input module 113 is used to receive the control signal, convert the control signal into a control instruction, and send it to the first signal conversion unit 12; the control instruction is a switch signal that can be recognized by the first signal conversion unit 12.

[0060] In some embodiments, the first signal conversion unit 12 is also used to obtain a test instruction of the test system 30, convert a third optical signal based on the test instruction, and send the third optical signal to the second signal conversion unit; convert a fourth optical signal sent by the second signal conversion unit to obtain a fourth electrical signal, and return the fourth electrical signal to the test system 30.

[0061] Among them, the fourth optical signal is obtained by converting the second feedback signal returned by the second signal conversion unit based on the rocket control system 20 in response to receiving the third electrical signal, and the third electrical signal is obtained by the second signal conversion unit based on the third optical signal; the fourth electrical signal is used to characterize the test results of the rocket control system 20 or receive test instructions.

[0062] See also Figure 6 As shown, the signal control unit 11 further includes: a switch value input module 113 and a switch value output module 114 .

[0063] The switch input module 113 is connected to the first signal conversion unit 12 , and is used to receive a test signal from the test system 30 and convert the test signal into a test instruction; the test instruction is a switch signal recognizable by the first signal conversion unit 12 .

[0064] The switch output module 114 is connected to the first signal processing module 121 , and is used 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 switch signal.

[0065] See also Figure 6 As shown, the photoelectric conversion device 10 also includes an optical fiber transceiver interface and a switch input and output interface, the optical fiber transceiver interface is used to connect to another photoelectric conversion device, and the switch input and output interface is used to connect to the test system 30. The photoelectric conversion device 10 is also connected to a power module, which can be connected to a 28V power input and output 3.3V and 5V voltages for powering the photoelectric conversion device 10. The surface of the photoelectric conversion device 10 is provided with a button and an indicator light. The button can also be a button with an indicator light, which can send a control signal and emit light when the button is pressed and triggered.

[0066] Optionally, the button may include an ignition launch button, a power off button, a power transfer button and a power supply button. The indicator light may 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 .

[0067] Optionally, the first signal processing module 121 may be an FPGA signal processing module, and the first signal processing module 121 may also be replaced by other modules with equivalent processing functions, such as a dedicated SOC chip, a DSP chip, etc.

[0068] See also 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 switch signal generated by the button, indicator light or switch 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 signal received by the first optical fiber receiving module 123, and output the decoded data as a switch instruction control signal.

[0069] The first optical fiber receiving module 123 realizes converting the optical signal into an electrical signal and outputting it to the first signal processing module 121; the first optical fiber sending module 122 realizes converting the electrical signal into an optical signal and sending it out; the switch quantity input module 113 realizes collecting external switch quantity instructions and key command collection and outputs them to the first signal processing module 121; the switch quantity output module 114 sends out the control signal output by the first signal processing module 121 in the form of switch quantity.

[0070] The button can generate a button command and transmit it to the first signal processing module 121, and can display the command status received by the first signal processing module 121 through the LED indicator light; the optical fiber transceiver interface connects the first optical fiber receiving module 123 and the first optical fiber sending module 122, and is responsible for receiving and sending optical fiber signals; the switch input and output interface connects the switch input module 113 and the switch output module 114, and is responsible for the transmission of switch signals.

[0071] Optionally, the second signal conversion unit of another optoelectronic conversion device 10 includes a second signal processing module, a second optical fiber sending module and a second optical fiber receiving module. The second signal processing module, the second optical fiber sending module and the second optical fiber receiving module correspond to the functions of the first signal processing module 121, the first optical fiber sending module 122 and the first optical fiber receiving module 123, respectively. Another optoelectronic conversion device 10 may also include a switch quantity input module 113 and a switch quantity output module 114, which input and output the transmitted signal in the form of switch quantity.

[0072] Combination Figure 1 and Figure 6 As shown, the photoelectric conversion device A is the front-end device, and the photoelectric conversion device B is the back-end device. The back-end photoelectric conversion device B is connected to the rocket internal control signal through the switch input and output interface, and the front-end photoelectric conversion device A is connected to the back-end photoelectric 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 the instruction by pressing a button. After receiving the corresponding button instruction, the front-end photoelectric conversion device A converts the electrical signal into an optical signal and sends it to the back-end photoelectric conversion device B. After receiving the optical fiber signal, the back-end photoelectric conversion device B converts the optical signal into an electrical signal and sends it to the rocket control system 20, thereby realizing the front-end control of the internal signal of the rocket.

[0073] The switching signal generated inside the rocket can be transmitted to the back-end photoelectric conversion device B through the switching input and output interface. The back-end photoelectric conversion device B converts the electrical signal into an optical signal and transmits it back to the front-end photoelectric conversion device A through the optical fiber. The back-end photoelectric conversion device B then converts the received optical signal into an electrical signal and displays it through the LED indicator light, thereby realizing the front-end equipment's monitoring of the internal variables of the rocket.

[0074] The embodiment of the present application uses optical fiber to replace the dedicated cable, which can increase the signal transmission distance. The optical fiber is light in weight and is convenient for on-site laying and withdrawal, avoiding the problems of high cable cost, heavy weight, and inconvenience in on-site laying and withdrawal. The first signal processing module 121, the first optical fiber sending module 122, the first optical fiber receiving module 123, the switch input module 113, and the switch output module 114 for receiving and sending the photoelectric signal in the optoelectronic conversion device 10 of the embodiment of the present application can adopt a dual redundant design, which can effectively increase the reliability of signal transmission and avoid generating erroneous control signals.

[0075] Based on the same inventive concept, an embodiment of the present application provides a launch vehicle, including: the photoelectric conversion device 10 of the embodiment of the present application; or, the signal transmission system 1 of the embodiment of the present application.

[0076] The launch vehicle provided in the embodiment of the present application includes the photoelectric conversion device 10 of the embodiment of the present application, which has the same inventive concept and the same beneficial effects as the various embodiments described in the previous photoelectric conversion device 10. The contents not shown in detail in the launch vehicle can be referred to the various embodiments described in the previous embodiments and will not be repeated here.

[0077] See also Figure 7 As shown, the present embodiment provides a flow chart of a signal transmission method. The signal transmission method is applied to the photoelectric conversion device 10 of the present embodiment, and the signal transmission method includes: S701 to S704.

[0078] S701 . Receive a control instruction sent by any instruction control module 111 , and obtain a first optical signal based on conversion of the control instruction.

[0079] 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 obtains a first electrical signal based on the first optical signal, sends the first electrical signal to the rocket control system 20, and obtains a second optical signal based on the first feedback signal returned by the rocket control system 20.

[0080] S703: Obtain a second electrical signal based on the second optical signal sent by the second signal conversion unit.

[0081] S704 , controlling the first indicator light 112 corresponding to the instruction control module 111 to emit light based on the second electrical signal.

[0082] Optionally, in step S701, obtaining the first optical signal based on the control instruction conversion includes: performing signal processing on the control instruction to obtain a processed control instruction, and obtaining the first optical signal based on the processed control instruction conversion; the signal processing includes at least one of the following: filtering, signal encoding.

[0083] Optionally, in step S704, controlling the first indicator light 112 corresponding to the instruction control module 111 to illuminate based on the second electrical signal includes: decoding the second electrical signal and controlling the corresponding first indicator light 112 to illuminate based on the decoded second electrical signal.

[0084] Optionally, the signal transmission method further includes: obtaining a test instruction of the test system 30, converting a third optical signal based on the test instruction, and sending the third optical signal to the second signal conversion unit; converting a fourth optical signal sent by the second signal conversion unit to obtain a fourth electrical signal, and returning the fourth electrical signal to the test system 30. 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 characterize the test result of the rocket control system 20 or the received test instruction.

[0085] Optionally, the signal transmission method further includes: controlling the second indicator light 115 to illuminate when detecting that the first optical signal is sent to the second signal conversion unit; and / or controlling the third indicator light 116 to illuminate when receiving the second optical signal sent by the second signal conversion unit.

[0086] Optionally, the signal transmission method further includes: detecting a transmission link of the photoelectric conversion device 10 based on the self-test signal to obtain a detection result; and controlling the fourth indicator light 118 or the fifth indicator light 119 to emit light based on the detection result.

[0087] The signal transmission method provided in the embodiment of the present application is applied to the photoelectric conversion device 10 in the embodiment of the present application, and has the same inventive concept and the same beneficial effect as the various embodiments described in the first signal conversion unit 12 of the photoelectric conversion device 10. The contents not shown in detail in the signal transmission method can be referred to the various embodiments described in the previous embodiments, and will not be repeated here.

[0088] Those skilled in the art will appreciate that the various operations, methods, steps, measures, and schemes in the processes discussed in this application may be alternated, changed, combined, or deleted. Furthermore, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application may also be alternated, changed, rearranged, decomposed, combined, or deleted. Furthermore, steps, measures, and schemes in the related art that are similar to those disclosed in this application may also be alternated, changed, rearranged, decomposed, combined, or deleted.

[0089] In the description of the present application, the directions or positional relationships indicated by words such as "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the exemplary directions or positional relationships shown in the accompanying drawings. They are for the convenience of describing or simplifying the description of the embodiments of the present application, and do not indicate or imply that the referred device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0090] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0091] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0092] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0093] The above is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the scheme of the present application, other similar implementation methods based on the technical ideas of the present application are also within the protection scope of the embodiments of the present application.

Claims

1. A photoelectric conversion device, characterized in that: Applied to a launch vehicle including a rocket control system, the photoelectric conversion device comprises: A signal control unit, comprising 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 of the instruction control modules; a first signal conversion unit, connected to the signal control unit, configured to receive the control instruction, convert the control instruction to obtain a first optical signal, and send the first optical signal to a second signal conversion unit of another photoelectric conversion device; convert the second optical signal sent by the second signal conversion unit to obtain a second electrical signal, and control the corresponding first indicator light to emit light based on the second electrical signal; The second optical signal is converted by the second signal conversion unit based on the 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.

2. The photoelectric conversion device according to claim 1, characterized in that The command control module includes at least one of the following: an ignition and transmission button, a power-off button, a power-on button, and a power supply button; Among them, the ignition and launch button is used to control the ignition and launch of the carrier rocket, the power-off button is used to control the power-off of the electrical appliances in the carrier rocket, the power-on button is used to control the electrical appliances in the carrier rocket to be converted from ground power supply to battery power supply, and the power supply button is used to power the electrical appliances in the carrier rocket.

3. The photoelectric conversion device according to claim 1, characterized in that The instruction control module is used to generate a control signal in response to a trigger operation; The signal control unit also includes: The switch quantity input module is connected to the instruction control module and the first signal conversion unit, and is used to receive the control signal, convert the control signal into the control instruction, and send it to the first signal conversion unit; the control instruction is a switch quantity signal recognizable by the first signal conversion unit.

4. The photoelectric conversion device according to claim 1, characterized in that The first signal conversion unit comprises: A first signal processing module is connected to the signal control unit and is used 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 based on the decoded second electrical signal; the signal processing includes at least one of the following: filtering and signal coding; a first optical fiber sending module, connected to the first signal processing module, configured to convert the first optical signal based on the processed control instruction and send the first optical signal to a second signal conversion unit of another optoelectronic conversion device; The first optical fiber receiving module is connected to the first signal processing module and is used to obtain a second electrical signal based on the conversion of the second optical signal and send the second electrical signal to the first signal processing module.

5. The photoelectric conversion device according to claim 1, characterized in that The first signal conversion unit is further used to obtain a test instruction of the test system, convert a third optical signal based on the test instruction, and send the third optical signal to the second signal conversion unit; convert a fourth optical signal sent by the second signal conversion unit to obtain a fourth electrical signal, and return the fourth electrical signal to the test system; Among them, the fourth optical signal is obtained by converting the second feedback signal returned by the second signal conversion unit based on the rocket control system in response to receiving the third electrical signal, and the third electrical signal is obtained by converting the second signal conversion unit based on the third optical signal; the fourth electrical signal is used to characterize the test results of the rocket control system or receive test instructions.

6. The photoelectric conversion device according to claim 5, characterized in that The signal control unit also includes: A switch quantity input module, connected to the first signal conversion unit, for receiving a test signal from a test system and converting the test signal into the test instruction; the test instruction is a switch quantity signal recognizable by the first signal conversion unit; The switch 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 switch signal.

7. The photoelectric 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 used to control the second indicator light when detecting that the first optical signal is sent to the second signal conversion unit; and / or to control the third indicator light when receiving the second optical signal sent by the second signal conversion unit.

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

9. A signal transmission method, characterized in that: A photoelectric conversion device as claimed in any one of claims 1 to 8, comprising: Receiving a control instruction sent by any instruction control module, and converting the control instruction to obtain a first optical signal; The first optical signal is sent to a second signal conversion unit of another photoelectric conversion device, so that the second signal conversion unit obtains a first electrical signal based on the first optical signal, sends the first electrical signal to a rocket control system, and converts the first electrical signal to obtain a second optical signal based on a first feedback signal returned by the rocket control system; Obtain a second electrical signal based on the second optical signal sent by the second signal conversion unit; A first indicator light corresponding to the instruction control module is controlled to emit light based on the second electrical signal.

10. A signal transmission system, characterized in that: include: The photoelectric conversion device according to any one of claims 1 to 8, and another photoelectric conversion device comprising a second signal conversion unit; The second signal conversion unit is connected to the first signal conversion unit, and is used to convert a first optical signal sent by the first signal conversion unit into a first electrical signal, and send the first electrical signal to a rocket control system, and to convert a 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.

11. The signal transmission system according to claim 10, characterized in that: Also includes: A test system is connected to the first signal conversion unit and is used to send a test signal to the first signal conversion unit so that the first signal conversion unit obtains a test instruction based on the test signal conversion; the test system includes at least one of the following: a power measurement and control system and a measurement and control system.

12. A launch vehicle, characterized in that: include: The photoelectric conversion device according to any one of claims 1 to 8; Or, a signal transmission system as claimed in any one of claims 10-11.

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