Vehicle-mounted communication system and vehicle

Abstract

The invention provides a vehicle-mounted communication system and a vehicle. The vehicle-mounted communication system comprises a vehicle-mounted controller, a first photoelectric module, a second photoelectric module and vehicle-mounted equipment. The vehicle-mounted controller is used for sending a first electric signal to the first photoelectric module. The first photoelectric module is used for performing protocol conversion and electro-optical conversion on the first electric signal to obtain a first optical signal, and sending the first optical signal to the second photoelectric module. And the second photoelectric module is used for performing photoelectric conversion and protocol conversion on the first optical signal to obtain a second electric signal, and sending the second electric signal to the vehicle-mounted equipment. By adopting the vehicle-mounted communication system, the communication rate and the communication bandwidth are improved.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a vehicle-mounted communication system and a vehicle. Background Art

[0002] With the development of new technologies such as driverless and intelligent transportation, and the increasing demand for in-vehicle audio and video entertainment, the performance of vehicle-mounted communication systems has gradually attracted people's attention. Existing vehicle-mounted communication systems are usually based on vehicle-mounted Ethernet. However, due to the continuous upgrading of requirements for autonomous driving, intelligent cockpits, etc. in automobiles, the number of Electronic Control Units (ECUs) and the demand for computing power have both shown an explosive growth, and the demand for real-time information transmission is also increasing. Therefore, the communication rate of vehicle-mounted communication systems based on vehicle-mounted Ethernet can no longer meet their usage requirements. So, how to improve the communication rate of vehicle-mounted communication systems has become one of the technical problems to be urgently solved. Summary of the Invention

[0003] An embodiment of this application provides a vehicle-mounted communication system and a vehicle, which improve the communication rate of the vehicle-mounted communication system.

[0004] In a first aspect, an embodiment of this application provides a vehicle-mounted communication system, which includes a vehicle-mounted controller, a first optoelectronic module, a second optoelectronic module, and vehicle-mounted devices. The vehicle-mounted controller is connected to the vehicle-mounted devices through the first optoelectronic module and the second optoelectronic module. The vehicle-mounted controller is configured to send a first electrical signal to the first optoelectronic module. The first optoelectronic module is configured to perform protocol conversion and electro-optical conversion on the first electrical signal to obtain a first optical signal, and send the first optical signal to the second optoelectronic module. The second optoelectronic module is configured to perform opto-electronic conversion and protocol conversion on the first optical signal to obtain a second electrical signal, and send the second electrical signal to the vehicle-mounted devices.

[0005] In the embodiment of this application, a vehicle-mounted communication system based on an optical transmission network is adopted inside the vehicle. Through the optoelectronic module, the optical network can adapt to the communication between the vehicle-mounted controller and each vehicle-mounted device. In this way, the communication rate of the vehicle-mounted communication system is greatly improved, its communication bandwidth is increased, and the structure is simpler, thereby enhancing its applicability and practicality.

[0006] In combination with the first aspect, in a feasible implementation manner, the first electrical signal carries target data, and the second electrical signal carries the target data.

[0007] In combination with the first aspect, in a feasible implementation manner, the first optical signal is obtained by the first optoelectronic module performing protocol conversion on the first electrical signal that complies with the first communication protocol to obtain a third electrical signal that complies with the second communication protocol, and then performing electro-optical conversion on the third electrical signal to obtain an optical signal that complies with the second communication protocol. Wherein, the first communication protocol is the communication transmission protocol set between the vehicle-mounted controller and the vehicle-mounted device, and the second communication protocol is the communication transmission protocol set between the first optoelectronic module and the second optoelectronic module.

[0008] In combination with the first aspect, in a feasible implementation manner, the second electrical signal is obtained by the second optoelectronic module performing optoelectronic conversion on the first optical signal to obtain a fourth electrical signal that complies with the second communication protocol, and then performing protocol conversion on the fourth electrical signal to obtain an electrical signal that complies with the first communication protocol.

[0009] In combination with the first aspect, in a feasible implementation manner, the first optoelectronic module includes a protocol conversion module and an optical module, and / or, the second optoelectronic module includes an optical module and a protocol conversion module. Wherein, the optical module is electrically connected to the protocol conversion module. The protocol conversion module is configured to convert the received electrical signal that complies with the first communication protocol into an electrical signal that complies with the second communication protocol, and / or, convert the received electrical signal that complies with the second communication protocol into an electrical signal that complies with the first communication protocol. The optical module is configured to convert the received electrical signal into a corresponding optical signal and output it, and / or, convert the received optical signal into a corresponding electrical signal and output it.

[0010] In combination with the first aspect, in a feasible implementation manner, the vehicle-mounted communication system further includes a third optoelectronic module. The vehicle-mounted controller is configured to be electrically connected to the third optoelectronic module and send the first electrical signal to the third optoelectronic module when there is a communication failure between the vehicle-mounted controller and the first optoelectronic module. The third optoelectronic module is configured to perform optoelectronic conversion and protocol conversion on the first electrical signal to obtain the first optical signal when there is a communication failure between the vehicle-mounted controller and the first optoelectronic module, and send the first optical signal to the second optoelectronic module.

[0011] In combination with the first aspect, in a feasible implementation, the vehicle-mounted communication system further includes a first controllable switch device, which is used to conduct the vehicle-mounted controller and the third optoelectronic module when a communication failure occurs between the vehicle-mounted controller and the first optoelectronic module, so that the vehicle-mounted controller sends the first electrical signal to the third optoelectronic module. The first controllable switch device is further used to turn off the connection between the vehicle-mounted controller and the third optoelectronic module when the communication between the vehicle-mounted controller and the first optoelectronic module is normal, so that the vehicle-mounted controller sends the first electrical signal to the first optoelectronic module.

[0012] In the above implementation, there can be multiple optoelectronic modules connected to the second optoelectronic module in the vehicle-mounted communication system, which can improve the communication rate and communication bandwidth of the vehicle-mounted communication system, and can also be used as a backup circuit to ensure the uninterrupted communication of the vehicle-mounted communication system and improve the reliability of the vehicle-mounted communication system.

[0013] In combination with the first aspect, in a feasible implementation, the vehicle-mounted communication system includes a first optical path and a second optical path, and both the first optical path and the second optical path are connected to the first optoelectronic module and the second optoelectronic module. The first optoelectronic module transmits the first optical signal through the first optical path and / or the second optical path.

[0014] In combination with the first aspect, in a feasible implementation, when the first optical path fails, the first optoelectronic module is used to transmit the first optical signal through the second optical path.

[0015] In combination with the first aspect, in a feasible implementation, the first optoelectronic module includes a first optical module, a second optical module and a first protocol conversion module, and the second optoelectronic module includes a third optical module, a fourth optical module and a second protocol conversion module. The first protocol conversion module is electrically connected to the first optical module and the second optical module respectively, and the second protocol conversion module is electrically connected to the third optical module and the fourth optical module respectively. The first optical path includes the first optical module and the third optical module. The second optical path includes the second optical module and the fourth optical module.

[0016] In combination with the first aspect, in a feasible implementation, the vehicle-mounted communication system includes a first optical switch disposed on the second optical path. The first optical switch is used to conduct when the first optical path fails, so that the first optoelectronic module transmits the first optical signal through the second optical path. And / or, the first optical switch is further used to turn off when the first optical path is unobstructed, so that the first optoelectronic module transmits the first optical signal through the first optical path.

[0017] In the above implementation, the first optoelectronic module and the second optoelectronic module can be connected through the first optical path, i.e., the primary optical path, or through the second optical path, i.e., the backup optical path. When the vehicle-mounted controller 11 determines that the primary optical path is interrupted, it can control the first optical switch to conduct, so that the vehicle-mounted communication system switches to use the backup optical path to transmit the first optical signal, ensuring that the communication of the vehicle-mounted communication system is not interrupted and improving the reliability of the vehicle-mounted communication system.

[0018] In combination with the first aspect, in a feasible implementation manner, the vehicle-mounted communication system further includes a second controllable switching device disposed between the first protocol conversion module and the second optical module. The second controllable switching device is configured to conduct when the first optical path fails, so that the first optoelectronic module transmits the first optical signal through the second optical path. And / or, the second controllable switching device is further configured to turn off when the first optical path is unobstructed, so that the first optoelectronic module transmits the first optical signal through the first optical path.

[0019] In combination with the first aspect, in a feasible implementation manner, the vehicle-mounted device includes a first vehicle-mounted device and a second vehicle-mounted device, and the second optoelectronic module is electrically connected to the first vehicle-mounted device and the second vehicle-mounted device respectively. The second optoelectronic module is further configured to send the second electrical signal to the first vehicle-mounted device and the second vehicle-mounted device respectively.

[0020] In combination with the first aspect, in a feasible implementation manner, the vehicle-mounted communication system further includes a first coupling optical splitter. The second optoelectronic module includes a first sub-optoelectronic module and a second sub-optoelectronic module. The vehicle-mounted device includes a third vehicle-mounted device and a fourth vehicle-mounted device. The first coupling optical splitter is optically connected to the first optoelectronic module, the first sub-optoelectronic module, and the second sub-optoelectronic module respectively. The first sub-optoelectronic module is electrically connected to the third vehicle-mounted device, and the second sub-optoelectronic module is electrically connected to the fourth vehicle-mounted device. The first coupling optical splitter is configured to receive the first optical signal, decompose the first optical signal into a second optical signal and a third optical signal, transmit the second optical signal to the first sub-optoelectronic module, and transmit the third optical signal to the second sub-optoelectronic module. The first sub-optoelectronic module is configured to perform optoelectronic conversion and protocol conversion on the second optical signal to obtain the second electrical signal, and send the second electrical signal to the third vehicle-mounted device. The second sub-optoelectronic module is configured to perform optoelectronic conversion and protocol conversion on the third optical signal to obtain the second electrical signal, and send the second electrical signal to the fourth vehicle-mounted device.

[0021] In the above implementation, by using the first coupling optical splitter, the in-vehicle communication system can significantly reduce the number of vehicle harnesses, lower the structural complexity of the in-vehicle communication system, increase the communication rate and communication bandwidth of the in-vehicle communication system, and enhance its applicability and practicality.

[0022] Combined with the first aspect, in a feasible implementation, the in-vehicle communication system includes a third optical path and a fourth optical path, and both the third optical path and the fourth optical path are connected to the first optoelectronic module and the first coupling optical splitter. The first optoelectronic module transmits the first optical signal through the third optical path and / or the fourth optical path.

[0023] Combined with the first aspect, in a feasible implementation, when the third optical path fails, the first optoelectronic module transmits the first optical signal through the fourth optical path.

[0024] Combined with the first aspect, in a feasible implementation, the first optoelectronic module includes a first optical module, a second optical module, and a first protocol conversion module, and the first protocol conversion module is electrically connected to the first optical module and the second optical module respectively. The third optical path includes the first optical module and the first coupling optical splitter. The fourth optical path includes the second optical module and the first coupling optical splitter.

[0025] Combined with the first aspect, in a feasible implementation, the in-vehicle communication system further includes a second optical switch disposed on the fourth optical path. The second optical switch is used to conduct when the third optical path fails, so that the first optoelectronic module transmits the first optical signal through the fourth optical path. And / or, the second optical switch is further used to turn off when the third optical path is in a conducting state, so that the first optoelectronic module transmits the first optical signal through the third optical path.

[0026] In the above implementation, the first optoelectronic module and the first coupling optical splitter can be connected through the third optical path, i.e., the primary optical path, or through the fourth optical path, i.e., the backup optical path. When the vehicle-mounted controller determines that the primary optical path is interrupted, it can control the first optical switch to conduct, so that the in-vehicle communication system switches to use the backup optical path to transmit the first optical signal, ensuring that the communication of the in-vehicle communication system is not interrupted and enhancing the reliability of the in-vehicle communication system.

[0027] In combination with the first aspect, in a feasible implementation manner, the vehicle-mounted communication system further includes a second coupling optical splitter. The second optoelectronic module includes a first sub-optoelectronic module, a second sub-optoelectronic module, a third sub-optoelectronic module, and a fourth sub-optoelectronic module. The vehicle-mounted devices include a third vehicle-mounted device, a fourth vehicle-mounted device, a fifth vehicle-mounted device, and a sixth vehicle-mounted device. The first coupling optical splitter is optically connected to the first optoelectronic module, the first sub-optoelectronic module, and the second sub-optoelectronic module respectively. The second coupling optical splitter is optically connected to the first coupling optical splitter, the third sub-optoelectronic module, and the fourth sub-optoelectronic module respectively. The first sub-optoelectronic module is electrically connected to the third vehicle-mounted device. The second sub-optoelectronic module is electrically connected to the fourth vehicle-mounted device. The third sub-optoelectronic module is electrically connected to the fifth vehicle-mounted device. The fourth sub-optoelectronic module is electrically connected to the sixth vehicle-mounted device. The first coupling optical splitter is configured to receive the first optical signal, decompose the first optical signal into a second optical signal, a third optical signal, and a fourth optical signal, and send the second optical signal to the first sub-optoelectronic module, send the third optical signal to the second sub-optoelectronic module, and send the fourth optical signal to the second coupling optical splitter. The second coupling optical splitter is configured to decompose the fourth optical signal into a fifth optical signal and a sixth optical signal, and send the fifth optical signal to the third sub-optoelectronic module, and send the sixth optical signal to the fourth sub-optoelectronic module. The third sub-optoelectronic module is configured to perform optoelectronic conversion and protocol conversion on the fifth optical signal to obtain the second electrical signal, and send the second electrical signal to the fifth vehicle-mounted device. The fourth sub-optoelectronic module is configured to perform optoelectronic conversion and protocol conversion on the sixth optical signal to obtain the second electrical signal, and send the second electrical signal to the sixth vehicle-mounted device.

[0028] In combination with the first aspect, in a feasible implementation manner, the vehicle-mounted system includes a fifth optical path and a sixth optical path. Both the fifth optical path and the sixth optical path connect the first coupling optical splitter and the second coupling optical splitter. The first coupling optical splitter transmits the fourth optical signal through the fifth optical path and / or the sixth optical path.

[0029] In combination with the first aspect, in a feasible implementation manner, when the fifth optical path fails, the first coupling optical splitter transmits the fourth optical signal through the sixth optical path.

[0030] In combination with the first aspect, in a feasible implementation, the vehicle-mounted communication system includes a third optical switch disposed on the sixth optical path. The third optical switch is configured to conduct when the fifth optical path fails, so that the first coupled optical splitter transmits the fourth optical signal through the sixth optical path. And / or, the third optical switch is further configured to turn off when the fifth optical path is in a conducting state, so that the first coupled optical splitter transmits the fourth optical signal through the fifth optical path.

[0031] In combination with the first aspect, in a feasible implementation, the vehicle-mounted communication system further includes a seventh optical path, and the seventh optical path connects the first optoelectronic module and the second coupled optical splitter. The first optoelectronic module transmits the first optical signal through the third optical path and / or the seventh optical path.

[0032] In combination with the first aspect, in a feasible implementation, when the third optical path fails, the first optoelectronic module transmits the first optical signal through the seventh optical path.

[0033] In combination with the first aspect, in a feasible implementation, the vehicle-mounted communication system includes a fourth optical switch disposed on the seventh optical path. The fourth optical switch is configured to conduct when the third optical path fails, so that the first optoelectronic module transmits the first optical signal through the seventh optical path. And / or, the fourth optical switch is further configured to turn off when the third optical path is in a conducting state, so that the first optoelectronic module transmits the first optical signal through the third optical path.

[0034] In combination with the first aspect, in a feasible implementation, the vehicle-mounted communication system includes a third optical switch and a fourth optical switch. The first optoelectronic module is connected to the first coupling optical splitter through a third optical path. The first coupling optical splitter and the second coupling optical splitter are respectively connected through a fifth optical path and a sixth optical path. The first optoelectronic module is connected to the second coupling optical splitter through a seventh optical path. The sixth optical path includes the third optical switch, and the seventh optical path includes the fourth optical switch. If the vehicle-mounted controller determines that the third optical path and the fifth optical path are interrupted, it controls the third optical switch and the fourth optical switch to conduct, so that the first optoelectronic module and the second optoelectronic module transmit the first optical signal through the sixth optical path and the seventh optical path. If the vehicle-mounted controller determines that the third optical path and the fifth optical path are in a conducting state, it controls the third optical switch and the fourth optical switch to turn off, so that the first optoelectronic module and the second optoelectronic module transmit the first optical signal through the third optical path and the fifth optical path. If the vehicle-mounted controller determines that the third optical path is interrupted, it controls the fourth optical switch to conduct, so that the first optoelectronic module and the second optoelectronic module transmit the first optical signal through the seventh optical path and the fifth optical path. If the vehicle-mounted controller determines that the third optical path is in a conducting state, it controls the fourth optical switch to turn off, so that the first optoelectronic module and the second optoelectronic module transmit the first optical signal through the third optical path and the fifth optical path. If the vehicle-mounted controller determines that the fifth optical path is interrupted, it controls the third optical switch to conduct, so that the first optoelectronic module and the second optoelectronic module transmit the first optical signal through the third optical path and the sixth optical path. If the vehicle-mounted controller determines that the fifth optical path is in a conducting state, it controls the third optical switch to turn off, so that the first optoelectronic module and the second optoelectronic module transmit the first optical signal through the third optical path and the fifth optical path.

[0035] In the above implementation, the first optoelectronic module and the second optoelectronic module can be connected through the primary optical path or the backup optical path. When the vehicle-mounted controller determines that the primary optical path is interrupted, it can switch to using the backup optical path to transmit the first optical signal, ensuring that the communication of the vehicle-mounted communication system is not interrupted and improving the reliability of the vehicle-mounted communication system.

[0036] In combination with the first aspect, in a feasible implementation manner, the vehicle-mounted communication system further includes a seventh vehicle-mounted device and a fifth optical switch. The second optoelectronic module includes a fifth sub-optoelectronic module and a sixth sub-optoelectronic module. The seventh vehicle-mounted device is electrically connected to the fifth sub-optoelectronic module and the sixth sub-optoelectronic module respectively. The first coupling optical splitter is connected to the fifth sub-optoelectronic module and the sixth sub-optoelectronic module through an eighth optical path and a ninth optical path respectively. The ninth optical path includes the fifth optical switch. If the vehicle-mounted controller determines that the eighth optical path is interrupted, it controls the fifth optical switch to turn on, so that the first coupling optical splitter and the seventh vehicle-mounted device transmit the first optical signal through the sixth sub-optoelectronic module. If the vehicle-mounted controller determines that the eighth optical path is unobstructed, it controls the fifth optical switch to turn off, so that the first coupling optical splitter and the seventh vehicle-mounted device transmit the first optical signal through the fifth sub-optoelectronic module.

[0037] In a second aspect, an embodiment of the present application provides a vehicle, which includes the vehicle-mounted communication system described in the first aspect above, so as to achieve the beneficial effects of the vehicle-mounted communication system provided in the first aspect above.

[0038] By implementing the embodiments of the present invention, the vehicle enables the optical network to adapt to the communication between the vehicle-mounted controller and each vehicle-mounted device through the optoelectronic module, greatly improving the communication rate and communication bandwidth of the vehicle-mounted communication system, and the structure is simpler, thereby enhancing its applicability and practicality. Description of the Drawings

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0040] Figure 1 is a schematic structural diagram of a vehicle-mounted communication system provided by an embodiment of the present application;

[0041] Figure 2 is a schematic structural diagram of an optoelectronic module provided by an embodiment of the present application;

[0042] Figure 3 is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0043] Figure 4 is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0044] Figure 5It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0045] Figure 6 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0046] Figure 7 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0047] Figure 8 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0048] Figure 9 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0049] Figure 10 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0050] Figure 11 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0051] Figure 12 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0052] Figure 13 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0053] Figure 14 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0054] Figure 15 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0055] Figure 16 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0056] Figure 17 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0057] Figure 18 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0058] Figure 19 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0059] Figure 20 It is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application;

[0060] Figure 21 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0061] Figure 22 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0062] Figure 23 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0063] Figure 24 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0064] Figure 25 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0065] Figure 26 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0066] Figure 27 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0067] Figure 28 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0068] Figure 29 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0069] Figure 30 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0070] Figure 31 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0071] Figure 32 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0072] Figure 33 It is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application;

[0073] Figure 34 It is a schematic structural diagram of a vehicle provided by an embodiment of the present application. Detailed implementation manners

[0074] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application.

[0075] Existing vehicle-mounted communication systems are usually implemented based on in-vehicle Ethernet. However, due to the continuous upgrading of automotive requirements for autonomous driving, intelligent cockpits, etc., the number of Electronic Control Units (ECUs) and the demand for computing power have shown an explosive growth, and the demand for real-time information transmission is also increasing. Therefore, the communication rate of the vehicle-mounted communication system implemented based on in-vehicle Ethernet can no longer meet its usage requirements, and the communication network structure is complex. Therefore, the technical problem to be solved by this application is: how to improve the communication rate of the vehicle-mounted communication system.

[0076] To solve the above problems, this application provides a vehicle-mounted communication system based on an optical communication network, which realizes optical-electric conversion and communication protocol conversion through an optical-electric module. The vehicle-mounted communication system includes a first optical-electric module and a second optical-electric module. The first optical-electric module can convert the electrical signal that meets the first communication protocol sent by the vehicle-mounted controller into an optical signal that meets the second communication protocol, and send it to the second optical-electric module. The second optical-electric module can convert the optical signal that meets the second communication protocol into an electrical signal that meets the first communication protocol, and send it to the vehicle-mounted device to realize vehicle-mounted communication. In the vehicle-mounted communication system provided by this application, the optical network can be adapted to the vehicle-mounted communication system through the optical-electric module, which can improve the communication rate and communication bandwidth of the vehicle-mounted communication system, and its structure is simpler, thereby enhancing its applicability and practicality.

[0077] It should be understood that in actual use, both the vehicle-mounted controller and the vehicle-mounted device in the vehicle-mounted communication system provided by this application have the function of transmitting and receiving electrical signals, that is, the vehicle-mounted controller can send an electrical signal for carrying data to the vehicle-mounted device and the vehicle-mounted device can receive it, and the vehicle-mounted device can also send an electrical signal for carrying data to the vehicle-mounted controller and the vehicle-mounted controller can receive it. Moreover, each optical element in the vehicle-mounted communication system provided by this application is also reversible. Therefore, for the vehicle-mounted communication system provided by this application, the specific processes of the bidirectional transmission of electrical signals between the vehicle-mounted controller and the vehicle-mounted device are similar. Therefore, to avoid redundancy, the embodiments of this application will take the working scenario of the vehicle-mounted controller sending an electrical signal to the vehicle-mounted device as an example to describe the structure and working principle of the vehicle-mounted communication system provided by this application.

[0078] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a vehicle-mounted communication system provided by an embodiment of this application. As Figure 1As shown in the figure, the vehicle-mounted communication system 10 may include a vehicle-mounted controller 11, a first optoelectronic module 12, a second optoelectronic module 13, and vehicle-mounted devices 14. The vehicle-mounted controller 11 is electrically connected to the first optoelectronic module 12, the first optoelectronic module 12 is optically connected to the second optoelectronic module 13, and the second optoelectronic module 13 is electrically connected to the vehicle-mounted devices 14.

[0079] In the embodiment of the present application, the vehicle-mounted controller 11 may be a controller in any form that can control the vehicle-mounted devices 14, such as an IVC300 controller. The embodiment of the present application does not specifically limit the implementation form of the vehicle-mounted controller 11.

[0080] In the embodiment of the present application, the vehicle-mounted devices 14 may be electronic devices in any form that can communicate, such as cameras, displays, lidars, speakers, vehicle-mounted navigators, dash cams, sensors, etc. The embodiment of the present application does not specifically limit the implementation form of the vehicle-mounted devices 14.

[0081] In actual work, after the vehicle-mounted controller 11 determines the transmission target data, it can be used for the first electrical signal and send the first electrical signal to the first optoelectronic module 12. The first optoelectronic module 12 can be used to perform protocol conversion and electro-optical conversion on the first electrical signal after receiving it to obtain a first optical signal, and send the first optical signal to the second optoelectronic module 13. The second optoelectronic module 13 can be used to perform optoelectronic conversion and protocol conversion on the first optical signal after receiving it to obtain a second electrical signal, and send the second electrical signal to the vehicle-mounted devices 14.

[0082] Optionally, both the first electrical signal and the second electrical signal may carry the target data. It can be understood that the optical signal also carries the target data. Moreover, the above first electrical signal and second electrical signal may be the same electrical signal, or different electrical signals that both carry the target data. The vehicle-mounted devices 14 can be used to receive the second electrical signal to obtain the target data.

[0083] Optionally, the number of vehicle-mounted devices 14 connected to the second optoelectronic module 13 may be one or multiple. The embodiment of the present application does not specifically limit the number of the vehicle-mounted devices 14. Preferably, the number of vehicle-mounted devices 14 may be 1 to 128.

[0084] Optionally, when there are multiple vehicle-mounted devices 14, the vehicle-mounted controller 11 sends signals to each of the multiple vehicle-mounted devices. After each of the multiple vehicle-mounted devices receives the signal sent by the vehicle-mounted controller 11, each vehicle-mounted device can determine whether the signal is sent to itself. If it is determined that the signal is sent to itself, the target data carried therein can be obtained according to the signal to perform related operations. If it is determined that the signal is not sent to itself, the signal can be cleared.

[0085] For example, each of the multiple vehicle-mounted devices can identify whether the signal is sent to itself through the identifier of the vehicle-mounted device. If the vehicle-mounted device determines that the signal contains its own vehicle-mounted device identifier, it can determine that the signal is sent to itself, and further obtain the target data carried in the signal to perform related operations. If the vehicle-mounted device determines that the signal does not contain its own vehicle-mounted device identifier, it can determine that the signal is not sent to itself, and further clear the signal.

[0086] Optionally, the communication mode of the vehicle-mounted communication system 10 can be time-division multiplexing communication or wavelength-division multiplexing communication.

[0087] In the embodiment of the present application, a vehicle-mounted communication system based on an optical transmission network is adopted in the vehicle. Through the optoelectronic module, the optical network can adapt to the communication between the vehicle-mounted controller 11 and each vehicle-mounted device, which greatly improves the communication rate of the vehicle-mounted communication system 10, increases its communication bandwidth, and has a simpler structure, thereby enhancing its applicability and practicability.

[0088] In an optional implementation manner, the first optical signal is obtained by the first optoelectronic module performing protocol conversion on the first electrical signal that meets the first communication protocol to obtain a third electrical signal that meets the second communication protocol, and performing electro-optical conversion on the third electrical signal to obtain an optical signal that meets the second communication protocol.

[0089] That is to say, the first optoelectronic module 12 can be used to perform protocol conversion on the first electrical signal after receiving the first electrical signal that meets the first communication protocol to obtain a third electrical signal that meets the second communication protocol, perform electro-optical conversion on the third electrical signal to obtain the first optical signal that meets the second communication protocol, and send the first optical signal to the second optoelectronic module 13.

[0090] In an optional implementation manner, the second electrical signal is obtained by the second optoelectronic module performing opto-electronic conversion on the first optical signal to obtain a fourth electrical signal that meets the second communication protocol, and performing protocol conversion on the fourth electrical signal to obtain an electrical signal that meets the first communication protocol.

[0091] That is to say, the second optoelectronic module 13 can be used to perform optoelectronic conversion on the received first optical signal to obtain a fourth electrical signal that meets the second communication protocol, perform protocol conversion on the fourth electrical signal to obtain a second electrical signal that meets the first communication protocol, and send the second electrical signal to the vehicle-mounted device 14.

[0092] Optionally, the vehicle-mounted device 14 can be used to receive the second electrical signal to obtain target data.

[0093] Among them, the first communication protocol is the communication transmission protocol set between the vehicle-mounted controller 11 and the vehicle-mounted device 14. For example, the CAN (Controller Area Network) bus protocol. The second communication protocol is the communication transmission protocol set between the first optoelectronic module 12 and the second optoelectronic module 13. For example, the Passive Optical Network (PON).

[0094] In an alternative embodiment, the present application provides multiple optoelectronic modules, such as the first optoelectronic module 12 and the second optoelectronic module 13. Optionally, the first optoelectronic module 12 may include a protocol conversion module and an optical module, and / or the second optoelectronic module 13 may include an optical module and a protocol conversion module. Among them, the optical module is electrically connected to the protocol conversion module. Since the structures and functions of these optoelectronic modules are the same, any one of the optoelectronic modules 20 is taken as an example for description here. Please refer to Figure 2 , Figure 2 which is a schematic structural diagram of an optoelectronic module provided by an embodiment of the present application. As Figure 2 shown, the optoelectronic module 20 may include an optical module 21 and a protocol conversion module 22. The optical module 21 is electrically connected to the protocol conversion module 22.

[0095] In the embodiment of the present application, the protocol conversion module 22 may be a processor capable of performing protocol conversion in any form, such as a gateway, etc. The present application does not specifically limit the implementation form of the protocol conversion module 22.

[0096] In a specific implementation, the protocol conversion module 22 can be used to convert the received electrical signal that complies with the first communication protocol into an electrical signal that complies with the second communication protocol, and / or convert the received electrical signal that complies with the second communication protocol into an electrical signal that complies with the first communication protocol. The optical module 21 can be used to convert the received electrical signal into a corresponding optical signal and output it, and / or convert the received optical signal into a corresponding electrical signal and output it. Or rather, the optical module 21 can be used to perform optoelectronic conversion on the received optical signal that complies with the second communication protocol to obtain a corresponding electrical signal that complies with the second communication protocol, and send this electrical signal to the protocol conversion module 22 to perform communication protocol conversion on this electrical signal to obtain an electrical signal that complies with the first communication protocol. At the same time, the protocol conversion module 22 can be used to perform communication protocol conversion on the received electrical signal that complies with the first communication protocol to obtain an electrical signal that complies with the second communication protocol, and send this electrical signal to the optical module 21 to perform electro-optical conversion on this electrical signal to obtain a corresponding optical signal and output it.

[0097] Exemplarily, please refer to Figure 3 , Figure 3 which is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application. As Figure 3 shown, the first optoelectronic module 12 can include a fifth optical module 215 and a third protocol conversion module 223. The second optoelectronic module 13 can include a sixth optical module 216 and a fourth protocol conversion module 224. The third protocol conversion module 223 can be electrically connected to the vehicle-mounted controller 11, the third protocol conversion module 223 can be electrically connected to the fifth optical module 215, the fifth optical module 215 can be optically connected to the sixth optical module 216, the sixth optical module 216 can be electrically connected to the fourth protocol conversion module 224, and the fourth protocol conversion module 224 can be electrically connected to the vehicle-mounted device 14.

[0098] Specifically, the third protocol conversion module 223 can be used to receive a first electrical signal that complies with the first communication protocol sent by the vehicle-mounted controller 11, perform protocol conversion on this first electrical signal to obtain a third electrical signal that complies with the second communication protocol, and send this third electrical signal to the fifth optical module 215. The fifth optical module 215 can be used to perform electro-optical conversion on this third electrical signal to obtain a first optical signal that complies with the second communication protocol, and send this first optical signal to the sixth optical module 216. The sixth optical module 216 can be used to perform optoelectronic conversion on the received first optical signal to obtain a fourth electrical signal that complies with the second communication protocol, and send this fourth electrical signal to the fourth protocol conversion module 224. The fourth protocol conversion module 224 can be used to perform protocol conversion on this fourth electrical signal to obtain a second electrical signal that complies with the first communication protocol, and send this second electrical signal to the vehicle-mounted device 14.

[0099] In an alternative implementation, please refer to Figure 4 ,Figure 4 This is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the present application. As Figure 4 shown, the in-vehicle communication system 10 may further include a third optoelectronic module 17. The third optoelectronic module 17 may be electrically connected to the vehicle-mounted controller 11, and the third optoelectronic module 17 may also be optically connected to the second optoelectronic module 13.

[0100] Optionally, the second optoelectronic module 13 may be connected to the first optoelectronic module 12 and the third optoelectronic module 17 respectively through waveguides. Specifically, both the first optoelectronic module 12 and the third optoelectronic module 17 may be connected to the second optoelectronic module 13 through a first waveguide.

[0101] In a specific implementation, the vehicle-mounted controller 11 may be used to electrically connect to the third optoelectronic module 17 and send a first electrical signal to the third optoelectronic module 17 when there is a communication failure between the vehicle-mounted controller 11 and the first optoelectronic module 12. The third optoelectronic module 17 may be used to perform optoelectronic conversion and protocol conversion on the first electrical signal to obtain a first optical signal when there is a communication failure between the vehicle-mounted controller 11 and the first optoelectronic module 12, and send the first optical signal to the second optoelectronic module 13.

[0102] Or rather, the vehicle-mounted controller 11 may be used to control the electrical connection to the third optoelectronic module 17 and send a first electrical signal that meets the first communication protocol to the third optoelectronic module 17 if it is determined that there is an open circuit between the vehicle-mounted controller 11 and the first optoelectronic module 12. The third optoelectronic module 17 may be used to perform protocol conversion on the first electrical signal to obtain a third electrical signal that meets the second communication protocol, perform optoelectronic conversion on the third electrical signal to obtain a first optical signal that meets the second communication protocol, and send the first optical signal to the second optoelectronic module 13 if it is determined that there is an open circuit between the vehicle-mounted controller 11 and the first optoelectronic module 12.

[0103] In the above implementation, the vehicle-mounted controller 11 in the in-vehicle communication system 10 can be connected to the second optoelectronic module through multiple optoelectronic modules, which can improve the communication rate and communication bandwidth of the in-vehicle communication system. At the same time, when there is a communication failure between the vehicle-mounted controller 11 and one optoelectronic module, the first optical signal can be transmitted to the second optoelectronic module through another optoelectronic module. Therefore, it can also be used as a backup circuit to ensure the uninterrupted communication of the in-vehicle communication system 10 and improve the reliability of the in-vehicle communication system 10.

[0104] In an optional implementation manner, please refer to Figure 5 , Figure 5 This is a schematic structural diagram of another in-vehicle communication system provided by an embodiment of the application. As Figure 5As shown, the vehicle-mounted communication system 10 may further include a controllable switching device (referred to as the first controllable switching device for easy distinction) 181. The third optoelectronic module 17 may be electrically connected to the vehicle-mounted controller 11 through the first controllable switching device 181.

[0105] In a specific implementation, the first controllable switching device 181 may be used to conduct the vehicle-mounted controller 11 and the third optoelectronic module 17 when a communication failure occurs between the vehicle-mounted controller 11 and the first optoelectronic module 12, so that the vehicle-mounted controller 11 sends a first electrical signal to the third optoelectronic module 17. The first controllable switching device 181 may also be used to turn off the connection between the vehicle-mounted controller 11 and the third optoelectronic module 17 when the communication between the vehicle-mounted controller 11 and the first optoelectronic module 12 is normal, so that the vehicle-mounted controller 11 sends a first electrical signal to the first optoelectronic module 12.

[0106] Or rather, the vehicle-mounted controller 11 may be used to control the first controllable switching device 181 to conduct if it determines that the vehicle-mounted controller 11 is open-circuited from the first optoelectronic module 12, so as to send a first electrical signal that complies with the first communication protocol to the third optoelectronic module 17. The vehicle-mounted controller 11 may be used to control the first controllable switching device 181 to turn off if it determines that the vehicle-mounted controller 11 is in a conducting state with the first optoelectronic module 12, so as to send a first electrical signal that complies with the first communication protocol to the first optoelectronic module 12.

[0107] It should be understood that the vehicle-mounted controller 11 preferentially sends the first electrical signal to the first optoelectronic module 12. When the vehicle-mounted controller 11 determines that it is open-circuited from the first optoelectronic module 12, it may control the first controllable switching device 181 to conduct to send a first electrical signal to the third optoelectronic module 17, so as to ensure that the communication of the vehicle-mounted communication system 10 is not interrupted.

[0108] In an alternative embodiment, please refer to Figure 6 , Figure 6 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 6 shown, the vehicle-mounted communication system 10 may include a first optical path and a second optical path. Both the first optical path and the second optical path may connect the first optoelectronic module 12 and the second optoelectronic module 13. Or rather, the first optoelectronic module 12 may establish an optical connection with the second optoelectronic module 13 through a waveguide. Specifically, the first optoelectronic module 12 may establish an optical connection with the second optoelectronic module 13 through a first waveguide, and the above-mentioned first optical path includes this first waveguide. The first optoelectronic module 12 may also establish an optical connection with the second optoelectronic module 13 through a second waveguide, and the above-mentioned second optical path may include this second waveguide.

[0109] In actual operation, the first optoelectronic module 12 may transmit a first optical signal through the first optical path and / or the second optical path.

[0110] Optionally, when the first optical path fails, the first optoelectronic module 12 can be used to transmit the first optical signal through the second optical path. That is, if the vehicle-mounted controller 11 determines that the first optical path fails, it can control the first optoelectronic module 12 to transmit the first optical signal through the second optical path.

[0111] Optionally, please refer to Figure 7 , Figure 7 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 7 shown, the first optoelectronic module 12 may include a first optical module 211, a second optical module 212, and a first protocol conversion module 221, and the second optoelectronic module 13 may include a third optical module 213, a fourth optical module 214, and a second protocol conversion module 222. The first protocol conversion module 221 may be electrically connected to the first optical module 211 and the second optical module 212 respectively, and the second protocol conversion module 222 may be electrically connected to the third optical module 213 and the fourth optical module 214 respectively.

[0112] Among them, the first optical path may include the first optical module 211 and the third optical module 213. The second optical path may include the second optical module 212 and the fourth optical module 214.

[0113] In a specific implementation, the vehicle-mounted controller 11 may send a first electrical signal that meets the first communication protocol to the first protocol conversion module 221. Then, the first protocol conversion module 221 may perform protocol conversion on the first electrical signal to obtain a third electrical signal that meets the second communication protocol.

[0114] When the vehicle-mounted communication system 10 uses the first optical path for communication, the first protocol conversion module 221 may send the third electrical signal to the first optical module 211. Then, the first optical module 211 may perform electro-optical conversion on the third electrical signal to obtain a first optical signal that meets the second communication protocol, and send it to the third optical module 213. The third optical module 213 may perform opto-electronic conversion on the first optical signal to obtain a fourth electrical signal that meets the second communication protocol, and send it to the second protocol conversion module 222. Then, the second protocol conversion module 222 may perform protocol conversion on the fourth electrical signal to obtain a second electrical signal that meets the first communication protocol, and send it to the vehicle-mounted device 14.

[0115] In an alternative embodiment, please refer to Figure 8 , Figure 8 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 8As shown, the vehicle-mounted communication system 10 may further include a first optical switch 151 disposed on the second optical path. Specifically, the first optoelectronic module 12 may also establish an optical connection with the second optoelectronic module 13 through a third waveguide and a fourth waveguide. The third waveguide and the fourth waveguide may be connected through the first optical switch 151, and the second optical path may include the third waveguide and the fourth waveguide.

[0116] In specific implementation, the first optical switch 151 can be used to conduct when the first optical path fails, so that the first optoelectronic module 12 transmits the first optical signal through the second optical path. And / or, the first optical switch 151 can also be used to turn off when the first optical path is in a conductive state, so that the first optoelectronic module 12 transmits the first optical signal through the first optical path.

[0117] Or rather, if the vehicle-mounted controller 11 determines that the first optical path is interrupted, it can control the first optical switch 151 to conduct, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the second optical path. If the vehicle-mounted controller 11 determines that the first optical path is in a conductive state, it controls the first optical switch 151 to turn off, so that the first optoelectronic module and the second optoelectronic module transmit the first optical signal through the first optical path.

[0118] Optionally, after the vehicle-mounted controller 11 sends an electrical signal to the vehicle-mounted device 14 through the first optical path, if it is determined that no feedback signal sent by the vehicle-mounted device 14 is received through the first optical path within a preset duration, it can be determined that the first optical path is interrupted. Among them, the preset duration can be an empirical value obtained through multiple experiments. And this preset duration can be the factory default of the vehicle-mounted communication system, or can be temporarily configured by the administrator.

[0119] It should be understood that the vehicle-mounted communication system 10 preferably uses the first optical path, that is, the primary optical path, to transmit the first optical signal. When the vehicle-mounted controller 11 determines that the primary optical path is interrupted, the vehicle-mounted controller 11 can switch to using the second optical path, that is, the backup optical path (redundant optical path), to transmit the first optical signal.

[0120] It should be noted here that the optical switch may include two ports, and these two ports are respectively connected to two optoelectronic modules to enable the two optoelectronic modules to be in a conductive state.

[0121] Optionally, when the vehicle-mounted controller 11 determines that the first optical path is interrupted, it can control the first optical switch 151 to conduct, so as to switch to using the second optical path for communication. The first protocol conversion module 221 can send the third electrical signal to the second optical module 212. Then, the second optical module 212 can perform electro-optical conversion on the third electrical signal to obtain a first optical signal that meets the second communication protocol, and send it to the fourth optical module 214. The fourth optical module 214 can perform opto-electrical conversion on the first optical signal to obtain a fourth electrical signal that meets the second communication protocol, and send it to the second protocol conversion module 222. Then, the second protocol conversion module 222 can perform protocol conversion on the fourth electrical signal to obtain a second electrical signal that meets the first communication protocol, and send it to the vehicle-mounted device 14.

[0122] In the above implementation, the first opto-electrical module 12 and the second opto-electrical module 13 can be connected through the first optical path, i.e., the primary optical path, or through the second optical path, i.e., the backup optical path. When the vehicle-mounted controller 11 determines that the primary optical path is interrupted, it can control the first optical switch 151 to conduct, so that the vehicle-mounted communication system 10 switches to using the backup optical path to transmit the first optical signal, ensuring that the communication of the vehicle-mounted communication system 10 is not interrupted and improving the reliability of the vehicle-mounted communication system 10.

[0123] Optionally, please refer to Figure 9 , Figure 9 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 9 shown, the vehicle-mounted communication system 10 may further include a second controllable switch device 182 disposed between the first protocol conversion module 221 and the second optical module 212. That is to say, the first protocol conversion module 221 and the second optical module 212 can be electrically connected through the second controllable switch device 182.

[0124] In a specific implementation, the second controllable switch device 182 can be used to conduct when the first optical path fails, so that the first opto-electrical module 12 transmits the first optical signal through the second optical path. And / or, the second controllable switch device 182 can be used to turn off when the first optical path is unobstructed, so that the first opto-electrical module 12 transmits the first optical signal through the first optical path.

[0125] Or rather, if the vehicle-mounted controller 11 determines that the first optical path is interrupted, it can control the second controllable switch device 182 to conduct, so that the first opto-electrical module 12 and the second opto-electrical module 13 transmit the first optical signal through the second optical path. If the vehicle-mounted controller 11 determines that the first optical path is unobstructed, it can control the second controllable switch device 182 to turn off, so that the first opto-electrical module 12 and the second opto-electrical module 13 transmit the first optical signal through the first optical path.

[0126] Among them, the first optical path can be used as the primary optical path of the vehicle-mounted communication system 10, and the second optical path can be used as the backup optical path of the vehicle-mounted communication system 10.

[0127] It should be understood that when the vehicle-mounted controller 11 determines that the primary optical path is interrupted, the vehicle-mounted controller 11 can switch to using the backup optical path to transmit the first optical signal. Specifically, when the vehicle-mounted controller 11 determines that the first optical path is interrupted, it can control the second controllable switch device 182 to conduct to transmit the first optical signal through the second optical path.

[0128] In the embodiments of the present application, the controllable switch device can be any form of switch device that can be correspondingly controlled according to the signal of the vehicle-mounted controller 11, such as a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET, abbreviated as MOS, also known as a field-effect transistor or MOS transistor). The field-effect transistor is divided into a PMOS transistor (P-channel type) and an NMOS transistor (N-channel type). The embodiments of the present application do not specifically limit the form of the controllable switch device.

[0129] In the above implementation, the first optoelectronic module 12 and the second optoelectronic module 13 can be connected through the first optical path, i.e., the primary optical path, or through the second optical path, i.e., the backup optical path. When the vehicle-mounted controller 11 determines that the primary optical path is interrupted, it can control the second controllable switch device 182 to conduct, so that the vehicle-mounted communication system 10 switches to use the backup optical path to transmit the first optical signal, ensuring that the communication of the vehicle-mounted communication system 10 is not interrupted and improving the reliability of the vehicle-mounted communication system 10.

[0130] It should be noted that the two optical modules in the first optoelectronic module 12 can share a protocol conversion module to implement the conversion of the communication protocol of the electrical signal. Similarly, the two optical modules in the second optoelectronic module 13 can also share a protocol conversion module to implement the conversion of the communication protocol of the electrical signal.

[0131] Optionally, the second optoelectronic module 13 may include M sub-optoelectronic modules, where M is a positive integer greater than or equal to 1. Since there may be a backup optical path between the first optoelectronic module 12 and the second optoelectronic module 13, each of the M sub-optoelectronic modules may have two optical modules, and there may be 2M optical modules in the first optoelectronic module 12. Specifically, the two optical modules included in each of the M sub-optoelectronic modules and the two optical modules in the first optoelectronic module 12 can be respectively connected through the primary optical path and the backup optical path. That is to say, one optical module in the first optoelectronic module 12 is connected to one optical module in the second optoelectronic module 12 in a one-to-one correspondence.

[0132] Among them, the vehicle-mounted communication system 10 preferably uses the primary optical path to transmit signals. If the vehicle-mounted controller 11 determines that the primary optical path is interrupted, the input / output port in the first optoelectronic module 12 can be switched to the backup optical path to use the backup optical path for signal transmission.

[0133] It should also be supplemented that when there are 2M optical modules in the first optoelectronic module 12, and each sub-optoelectronic module in the M sub-optoelectronic modules included in the second optoelectronic module 13 has two optical modules, there can be only one protocol conversion module in each of the first optoelectronic module 12 and the second optoelectronic module 13. That is to say, when there are multiple optical modules in the optoelectronic module, the multiple optical modules can share one protocol conversion module to realize the conversion of the communication protocol of the electrical signal.

[0134] For ease of understanding, here, taking the second optoelectronic module 13 including two sub-optoelectronic modules, namely the first sub-optoelectronic module 131 and the second sub-optoelectronic module 132 as an example for illustration. Please refer to Figure 10 , Figure 10 is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 10 shown, the first optoelectronic module 12 can include a first optical module 211, a second optical module 212, a seventh optical module 217, an eighth optical module 218, and a first protocol conversion module 221. The first sub-optoelectronic module 131 can include a third optical module 213, a fourth optical module 214, and a second protocol conversion module 222. The second sub-optoelectronic module 132 can include a ninth optical module 219, a tenth optical module 210, and a fifth protocol conversion module 225. The vehicle-mounted device 14 can include an eighth vehicle-mounted device 148 and a ninth vehicle-mounted device 149.

[0135] There can be a first optical path between the first optical module 211 and the third optical module 213. There can be a second optical path between the second optical module 212 and the fourth optical module 214, and the second optical path can include a first optical switch 151. There can be a tenth optical path between the seventh optical module 217 and the ninth optical module 219, and there can be an eleventh optical path between the eighth optical module 218 and the tenth optical module 210, and the eleventh optical path can include a sixth optical switch 156. The first protocol conversion module 221 can be electrically connected to the first optical module 211, the second optical module 212, the seventh optical module 217, and the eighth optical module 218 respectively. The second protocol conversion module 222 can be electrically connected to the third optical module 213 and the fourth optical module 214 respectively. The fifth protocol conversion module 225 can be electrically connected to the ninth optical module 219 and the tenth optical module 210 respectively. The second protocol conversion module 222 can be electrically connected to the eighth vehicle-mounted device 148. The fifth protocol conversion module 225 can be electrically connected to the ninth vehicle-mounted device 149.

[0136] Among them, the first optical path and the tenth optical path can be used as the primary optical paths of the vehicle-mounted communication system 10, and the second optical path and the eleventh optical path can be used as the backup optical paths of the vehicle-mounted communication system 10.

[0137] It should be understood that when the vehicle-mounted controller 11 determines that the primary optical path is interrupted, the vehicle-mounted controller 11 can switch to using the backup optical path to transmit the first optical signal. Specifically, when the vehicle-mounted controller 11 determines that the first optical path is interrupted, it can control the first optical switch 151 to conduct to transmit the first optical signal through the second optical path. When the vehicle-mounted controller 11 determines that the tenth optical path is interrupted, it can control the sixth optical switch 156 to conduct to transmit the first optical signal through the eleventh optical path.

[0138] Optionally, please refer to Figure 11 , Figure 11 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 11 shown, the vehicle-mounted communication system 10 may further include an optical path selector 19. The first optoelectronic module 12 may include a first optical module 211, a seventh optical module 217, an eighth optical module 218, and a first protocol conversion module 221. The second optoelectronic module 13 may include a first sub-optoelectronic module 131 and a second sub-optoelectronic module 132. The first sub-optoelectronic module 131 may include a third optical module 213, a fourth optical module 214, and a second protocol conversion module 222. The second sub-optoelectronic module 132 may include a ninth optical module 219, a tenth optical module 210, and a fifth protocol conversion module 225. The vehicle-mounted device 14 may include an eighth vehicle-mounted device 148 and a ninth vehicle-mounted device 149.

[0139] The first protocol conversion module 221 may be electrically connected to the first optical module 211, the seventh optical module 217, and the eighth optical module 218 respectively. The second protocol conversion module 222 may be electrically connected to the third optical module 213 and the fourth optical module 214 respectively. The fifth protocol conversion module 225 may be electrically connected to the ninth optical module 219 and the tenth optical module 210 respectively. The second protocol conversion module 222 may be electrically connected to the eighth vehicle-mounted device 148. The fifth protocol conversion module 225 may be electrically connected to the ninth vehicle-mounted device 149.

[0140] The first optical module 211 may be optically connected to the third optical module 213 and the fourth optical module 214 respectively through the optical path selector 19. Specifically, the first optical module 211, the optical path selector 19, and the third optical module 213 may form the first optical path, and the first optical module 211, the optical path selector 19, and the fourth optical module 214 may form the second optical path.

[0141] There may be a tenth optical path between the seventh optical module 217 and the ninth optical module 219, and there may be an eleventh optical path between the eighth optical module 218 and the tenth optical module 210. The eleventh optical path may include a sixth optical switch 156.

[0142] Among them, the first optical path and the tenth optical path can be used as the main optical paths of the vehicle-mounted communication system 10, and the second optical path and the eleventh optical path can be used as the backup optical paths of the vehicle-mounted communication system 10.

[0143] In specific implementation, when the vehicle-mounted controller 11 determines that the first optical path is interrupted, it can control the optical path selector 19 to make the second optical path passable. That is to say, the vehicle-mounted communication system 10 transmits the first optical signal through the second optical path. When the vehicle-mounted controller 11 determines that the second optical path is interrupted, it can control the optical path selector 19 to make the first optical path passable. That is to say, the vehicle-mounted communication system 10 transmits the first optical signal through the first optical path. If the vehicle-mounted controller 11 determines that the tenth optical path is interrupted, it can control the sixth optical switch 156 to conduct, so that the vehicle-mounted communication system 10 transmits the first optical signal through the eleventh optical path. If the vehicle-mounted controller determines that the eleventh optical path is passable, it can control the sixth optical switch 156 to turn off, so that the vehicle-mounted communication system 10 transmits the first optical signal through the tenth optical path.

[0144] It should be noted here that the optical path selector 19 includes at least three ports, which are respectively connected to the first optical module 211, the third optical module 213, and the fourth optical module 214. The optical path selector 19 can be used to connect the first optical module 211 to the third optical module 213 and switch it to be connected to the fourth optical module 214 when the vehicle-mounted controller 11 detects that the first optical path is interrupted.

[0145] In the above implementation, the first optical module 211 can be optically connected to the third optical module 213 and the fourth optical module 214 respectively through the optical path selector 19 to realize the switching between the main optical path and the backup optical path, thereby reducing the structural complexity of the vehicle-mounted communication system 10 and ensuring the uninterrupted communication of the vehicle-mounted communication system 10, and improving the reliability of the vehicle-mounted communication system 10.

[0146] Optionally, please refer to Figure 12 , Figure 12 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 12 shown, the vehicle-mounted communication system 10 may further include a seventh optical switch 157 disposed on the first optical path.

[0147] In specific implementation, if the vehicle-mounted controller 11 determines that the first optical path is interrupted, it can control the seventh optical switch 157 to turn off and the first optical switch 151 to conduct, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the second optical path.

[0148] Among them, the first optical path may include the first optical module 211, the seventh optical switch 157, and the third optical module 213.

[0149] Optionally, after a preset duration, the vehicle-mounted controller 11 can be used to control the seventh optical switch 157 to conduct and the first optical switch 151 to turn off, so as to determine whether the first optical path is unblocked. The vehicle-mounted controller 11 can be used to, if it is determined that the first optical path is unblocked, keep the seventh optical switch 157 conducting and the first optical switch 151 turned off, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the first optical path. The vehicle-mounted controller 11 can be used to, if it is determined that the first optical path is still interrupted, control the seventh optical switch 157 to turn off and the first optical switch to conduct, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the second optical path.

[0150] Wherein, the preset duration can be an empirical value obtained through multiple experiments. Moreover, the preset duration can be the factory default of the vehicle-mounted communication system 10, or can be temporarily configured by the management personnel.

[0151] In an alternative embodiment, please refer to Figure 13 , Figure 13 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 13 shown, the vehicle-mounted device 14 can include a first vehicle-mounted device 141 and a second vehicle-mounted device 142, and the second optoelectronic module 13 can be electrically connected to the first vehicle-mounted device 141 and the second vehicle-mounted device 142 respectively.

[0152] In a specific implementation, the second optoelectronic module 13 can be used to perform optoelectronic conversion on the received first optical signal to obtain a fourth electrical signal that meets the second communication protocol, perform optoelectronic conversion on the fourth electrical signal to obtain a second electrical signal that meets the first communication protocol, and send the second electrical signal to the first vehicle-mounted device 141 and the second vehicle-mounted device 142 respectively.

[0153] It should be noted that the foregoing describes the case where the second optoelectronic module 13 is connected to two vehicle-mounted devices. In an actual implementation, the second optoelectronic module 13 can be connected to 3 or more vehicle-mounted devices. For the specific structure and function, reference can be made to the structure and function described above when connecting two vehicle-mounted devices. To avoid redundancy, it will not be elaborated here.

[0154] In an alternative embodiment, please refer to Figure 14 , Figure 14 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 14As shown, the vehicle-mounted communication system 10 may further include a first coupling optical splitter 161. The second optoelectronic module 13 may include a first sub-optoelectronic module 131 and a second sub-optoelectronic module 132, and the vehicle-mounted devices 14 may include a third vehicle-mounted device 143 and a fourth vehicle-mounted device 144. The first coupling optical splitter 161 is optically connected to the first optoelectronic module 12, the first sub-optoelectronic module 131, and the second sub-optoelectronic module 132 respectively. The first sub-optoelectronic module 131 is electrically connected to the third vehicle-mounted device 143, and the second sub-optoelectronic module 132 is connected to the fourth vehicle-mounted device 144.

[0155] In a specific implementation, the first coupling optical splitter 161 can be used to receive the first optical signal sent by the first optoelectronic module 12, decompose the first optical signal into a second optical signal and a third optical signal, transmit the second optical signal to the first sub-optoelectronic module 131, and transmit the third optical signal to the second sub-optoelectronic module 132. The first sub-optoelectronic module 131 can be used to perform optoelectronic conversion and protocol conversion on the second optical signal to obtain a second electrical signal, and send the second electrical signal to the third vehicle-mounted device 143. The second sub-optoelectronic module 132 can be used to perform optoelectronic conversion and protocol conversion on the third optical signal to obtain a second electrical signal, and send the second electrical signal to the fourth vehicle-mounted device 144.

[0156] Optionally, the first coupling optical splitter 161 can evenly divide the optical energy of the first optical signal to obtain a second optical signal and a third optical signal. The first coupling optical splitter 161 can also distribute the optical energy of the first optical signal according to any ratio as required to obtain a second optical signal and a third optical signal.

[0157] It should be understood that the ratio of the optical energy of the second optical signal and the third optical signal is determined by the splitting ratio of the first coupling optical splitter 161. Optionally, the splitting ratio of the coupling optical splitter is set at the factory and its splitting ratio is fixed. For example, the splitting ratio of the coupling optical splitter can be 0%:100%, 50%:50%, or 10%:90%.

[0158] In the above implementation, by using the first coupling optical splitter 161, the vehicle-mounted communication system 10 can significantly reduce the number of vehicle harnesses, reduce the structural complexity of the vehicle-mounted communication system 10, improve the communication rate and communication bandwidth of the vehicle-mounted communication system 10, and enhance its applicability and practicality.

[0159] Optionally, please refer to Figure 15 , Figure 15 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 15As shown in the figure, the first coupling optical splitter 161 may include port 201, port 401, and port 402. Port 201 may be connected to the first optoelectronic module 12 to transmit a first optical signal, port 401 may be connected to the first sub-optoelectronic module 131 to transmit a second optical signal, and port 402 may be connected to the second sub-optoelectronic module 132 to transmit a third optical signal.

[0160] It should be noted that here, the example of the first coupling optical splitter 161 being connected to the first sub-optoelectronic module 131 and the second sub-optoelectronic module 132 is used for illustration. When the second optoelectronic module 13 connected by the first coupling optical splitter 161 includes N sub-optoelectronic modules, ports 401, 402,..., 40N may be respectively connected to these N sub-optoelectronic modules one by one.

[0161] In an alternative embodiment, please refer to Figure 16 , Figure 16 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As shown in Figure 16 the figure, the vehicle-mounted communication system 10 may include a third optical path and a fourth optical path, and both the third optical path and the fourth optical path may be connected to the first optoelectronic module 12 and the first coupling optical splitter 161.

[0162] In specific implementation, the first optoelectronic module 12 may transmit the first optical signal through the third optical path and / or the fourth optical path.

[0163] Optionally, please refer to Figure 17 , Figure 17 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As shown in Figure 17 the figure, the first coupling optical splitter 161 may include port 201, port 202, port 401, and port 402. Port 201 may be connected to the first optoelectronic module 12 to transmit a first optical signal, port 202 may be connected to the first optoelectronic module 12 to transmit a first optical signal, port 401 may be connected to the first sub-optoelectronic module 131 to transmit a second optical signal, and port 402 may be connected to the second sub-optoelectronic module 132 to transmit a third optical signal.

[0164] Optionally, when the third optical path fails, the first optoelectronic module 12 may transmit the first optical signal through the fourth optical path.

[0165] In an alternative embodiment, please refer to Figure 18 , Figure 18 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As shown in Figure 18 the figure, the first optoelectronic module 12 may include a first optical module 211, a second optical module 212, and a first protocol conversion module 221, and the first protocol conversion module 221 may be electrically connected to the first optical module 211 and the second optical module 212 respectively.

[0166] Among them, the third optical path may include the first optical module 211 and the first coupling beam splitter 161. The fourth optical path may include the second optical module 212 and the first coupling beam splitter 161.

[0167] In an alternative embodiment, please refer to Figure 19 , Figure 19 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 19 shown, the vehicle-mounted communication system 10 may further include a second optical switch 152 disposed on the fourth optical path. Optionally, the first optoelectronic module 12 may establish an optical connection with the first coupling beam splitter 161 through a waveguide. Specifically, the first optoelectronic module 12 may establish an optical connection with the first coupling beam splitter 161 through a fifth waveguide, and the above-mentioned third optical path includes this fifth waveguide. The first optoelectronic module 12 may also establish an optical connection with the first coupling beam splitter 161 through a sixth waveguide and a seventh waveguide, and the sixth waveguide and the seventh waveguide may be connected through the second optical switch, and the above-mentioned fourth optical path may include this fifth, sixth, and seventh waveguides.

[0168] In a specific implementation, the second optical switch 152 may be used to conduct when the third optical path fails, so that the first optoelectronic module 12 transmits the first optical signal through the fourth optical path. And / or, the second optical switch 152 may also be used to turn off when the third optical path is in a conducting state, so that the first optoelectronic module 12 transmits the first optical signal through the third optical path.

[0169] Or rather, if the vehicle-mounted controller 11 determines that the third optical path is interrupted, it may control the second optical switch 152 to conduct, so that the first optoelectronic module 12 and the first coupling beam splitter 161 transmit the first optical signal through the fourth optical path. If the vehicle-mounted controller 11 determines that the third optical path is in a conducting state, it may control the second optical switch 152 to turn off, so that the first optoelectronic module 12 and the first coupling beam splitter 161 transmit the first optical signal through the third optical path.

[0170] Optionally, after the vehicle-mounted controller 11 sends an electrical signal to the vehicle-mounted device 14 through the third optical path, if it is determined that no feedback signal sent by the vehicle-mounted device 14 is received through the third optical path within a preset duration, it may be determined that the third optical path is interrupted. Among them, the preset duration may be an empirical value obtained through multiple experiments. And this preset duration may be the factory default of the vehicle-mounted communication system, or may be temporarily configured by the administrator.

[0171] It should be understood that the vehicle-mounted communication system 10 preferably uses the third optical path, that is, the primary optical path, to transmit the first optical signal. When the vehicle-mounted controller 11 determines that the primary optical path is interrupted, the vehicle-mounted controller 11 may switch to using the fourth optical path, that is, the backup optical path, to transmit the first optical signal.

[0172] In the above implementation, the first optoelectronic module 12 and the first coupling optical splitter 161 can be connected through the third optical path, i.e., the primary optical path, or through the fourth optical path, i.e., the standby optical path. When the vehicle-mounted controller 11 determines that the primary optical path is interrupted, it can control the second optical switch 152 to conduct, so that the vehicle-mounted communication system 10 switches to use the standby optical path to transmit the first optical signal, ensuring that the communication of the vehicle-mounted communication system 10 is not interrupted and improving the reliability of the vehicle-mounted communication system 10.

[0173] Optionally, please refer to Figure 20 , Figure 20 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 20 shown, the vehicle-mounted communication system 10 may further include a second coupling optical splitter 162. The second optoelectronic module 13 may include a first sub-optoelectronic module 131, a second sub-optoelectronic module 132, a third sub-optoelectronic module 133, and a fourth sub-optoelectronic module 134. The vehicle-mounted device 14 may include a third vehicle-mounted device 143, a fourth vehicle-mounted device 144, a fifth vehicle-mounted device 145, and a sixth vehicle-mounted device 146. The first coupling optical splitter 161 may be optically connected to the first optoelectronic module 12, the first sub-optoelectronic module 131, and the second sub-optoelectronic module 132 respectively. The second coupling optical splitter 162 may be optically connected to the first coupling optical splitter 161, the third sub-optoelectronic module 133, and the fourth sub-optoelectronic module 134 respectively. The first sub-optoelectronic module 131 may be electrically connected to the third vehicle-mounted device 143. The second sub-optoelectronic module 132 may be electrically connected to the fourth vehicle-mounted device 144. The third sub-optoelectronic module 133 may be electrically connected to the fifth vehicle-mounted device 145. The fourth sub-optoelectronic module 134 may be electrically connected to the sixth vehicle-mounted device 146.

[0174] In a specific implementation, the first coupling optical splitter 161 can be used to receive the first optical signal sent by the first optoelectronic module 12, decompose the first optical signal into a second optical signal, a third optical signal, and a fourth optical signal, send the second optical signal to the first sub-optoelectronic module 131, send the third optical signal to the second sub-optoelectronic module 132, and send the fourth optical signal to the second coupling optical splitter 162. The second coupling optical splitter 162 can be used to receive the fourth optical signal sent by the first coupling optical splitter 161, decompose the fourth optical signal into a fifth optical signal and a sixth optical signal, send the fifth optical signal to the third sub-optoelectronic module 133, and send the sixth optical signal to the fourth sub-optoelectronic module 134. The first sub-optoelectronic module 131 can be used to perform optoelectronic conversion and protocol conversion on the second optical signal to obtain a second electrical signal, and send the second electrical signal to the third vehicle-mounted device 143. The second sub-optoelectronic module 132 can be used to perform optoelectronic conversion and protocol conversion on the third optical signal to obtain a second electrical signal, and send the second electrical signal to the fourth vehicle-mounted device 144. The third sub-optoelectronic module 133 can be used to perform optoelectronic conversion and protocol conversion on the fifth optical signal to obtain a second electrical signal, and send the second electrical signal to the fifth vehicle-mounted device 145. The fourth sub-optoelectronic module 134 can be used to perform optoelectronic conversion and protocol conversion on the sixth optical signal to obtain a second electrical signal, and send the second electrical signal to the sixth vehicle-mounted device 146.

[0175] It should be noted that the proportion of the optical energy of the second optical signal, the third optical signal, and the fourth optical signal can be determined by the splitting ratio of the first coupling optical splitter 161. The proportion of the optical energy of the fifth optical signal and the sixth optical signal can be determined by the splitting ratio of the second coupling optical splitter 162.

[0176] It should be noted that the foregoing description is about the case where the vehicle-mounted communication system 10 includes two coupling optical splitters, namely the first coupling optical splitter 161 and the second coupling optical splitter 162. In an actual implementation, the vehicle-mounted communication system 10 can include three or more coupling optical splitters. For the specific structure and functions, reference can be made to the structure and functions of the vehicle-mounted communication system 10 including two coupling optical splitters described above. To avoid redundancy, it will not be elaborated here. Preferably, the vehicle-mounted communication system 10 can include 1 to 20 coupling optical splitters.

[0177] Optionally, please refer to Figure 21 , Figure 21 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 21As shown, the first coupling optical splitter 161 may include port 201, port 301, port 401, and port 402. The second coupling optical splitter 162 may include port 231, port 411, and port 412. Port 201 may be connected to the first optoelectronic module 12 to transmit a first optical signal, and divide the first optical signal into two parts. One part transmits the signal to the second coupling optical splitter through port 301, and the other part is divided into two paths and transmitted to the first sub-optoelectronic module 131 and the second sub-optoelectronic module 132 through port 401 and port 402 respectively. Port 401 may be connected to the first sub-optoelectronic module 131 to transmit a second optical signal, port 402 may be connected to the second sub-optoelectronic module 132 to transmit a third optical signal, port 301 may be connected to port 211 to transmit a fourth optical signal, port 411 may be connected to the third sub-optoelectronic module 133 to transmit a fifth optical signal, and port 412 may be connected to the fourth sub-optoelectronic module 134 to transmit a sixth optical signal.

[0178] In an alternative embodiment, please refer to Figure 22 , Figure 22 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 22 shown, the vehicle-mounted communication system 10 may include a fifth optical path and a sixth optical path. Both the fifth optical path and the sixth optical path may be connected to the first coupling optical splitter 161 and the second coupling optical splitter 162. It should be noted that the third optical path may be connected to the first optoelectronic module 12 and the first coupling optical splitter 161.

[0179] In a specific implementation, the first coupling optical splitter 161 may transmit the fourth optical signal through the fifth optical path and / or the sixth optical path.

[0180] Optionally, when the fifth optical path fails, the first coupling optical splitter 161 may transmit the fourth optical signal through the sixth optical path.

[0181] Optionally, please refer to Figure 23 , Figure 23 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 23As shown, the first coupling optical splitter 161 may include port 201, port 301, port 302, port 401, and port 402. The second coupling optical splitter 162 may include port 231, port 232, port 411, and port 412. Port 201 may be connected to the first optoelectronic module 12 to transmit a first optical signal, and divide the first optical signal into two parts. One part transmits the signal to the second coupling optical splitter through port 301, and the other part is divided into two paths and transmitted to the first sub-optoelectronic module 131 and the second sub-optoelectronic module 132 through port 401 and port 402 respectively. Port 401 may be connected to the first sub-optoelectronic module 131 to transmit a second optical signal, port 402 may be connected to the second sub-optoelectronic module 132 to transmit a third optical signal, port 301 may be connected to port 231 to transmit a fourth optical signal, port 411 may be connected to the third sub-optoelectronic module 133 to transmit a fifth optical signal, and port 412 may be connected to the fourth sub-optoelectronic module 134 to transmit a sixth optical signal.

[0182] In an alternative embodiment, please refer to Figure 24 , Figure 24 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 24 shown, the vehicle-mounted communication system 10 may further include a third optical switch 153 disposed on the sixth optical path.

[0183] In a specific implementation, the third optical switch 153 may be used to conduct when the fifth optical path fails, so that the first coupling optical splitter 161 transmits the fourth optical signal through the sixth optical path. And / or, the third optical switch 153 may also be used to turn off when the fifth optical path is unobstructed, so that the first coupling optical splitter 161 transmits the fourth optical signal through the fifth optical path.

[0184] Or rather, if the vehicle-mounted controller 11 determines that the fifth optical path is interrupted, it may control the third optical switch 153 to conduct, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the third optical path and the sixth optical path. If the vehicle-mounted controller 11 determines that the fifth optical path is unobstructed, it may control the third optical switch 153 to turn off, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the third optical path and the fifth optical path.

[0185] Among them, the third optical path may include the first optoelectronic module 12 and the first coupling optical splitter 161. The fifth optical path may include the first coupling optical splitter 161 and the second coupling optical splitter 162. The sixth optical path may include the first coupling optical splitter 161, the third optical switch 153, and the second coupling optical splitter 162.

[0186] It should be understood that the vehicle-mounted communication system 10 preferably uses the fifth optical path, i.e., the primary optical path, to transmit the first optical signal. When the vehicle-mounted controller 11 determines that the primary optical path is interrupted, the vehicle-mounted controller 11 can switch to using the sixth optical path, i.e., the backup optical path, to transmit the first optical signal.

[0187] In an alternative embodiment, please refer to Figure 25 , Figure 25 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 25 shown, the vehicle-mounted communication system 10 may further include a seventh optical path. The seventh optical path can connect the first optoelectronic module 12 and the second coupling optical splitter 162. It should be noted that the third optical path can connect the first optoelectronic module 12 and the first coupling optical splitter 161, and the fifth optical path can connect the first coupling optical splitter 161 and the second coupling optical splitter 162.

[0188] In a specific implementation, the first optoelectronic module 12 can transmit the first optical signal through the third optical path and / or the seventh optical path.

[0189] Optionally, when the third optical path fails, the first optoelectronic module 12 can transmit the first optical signal through the seventh optical path.

[0190] Optionally, please refer to Figure 26 , Figure 26 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 26 shown, the first coupling optical splitter 161 may include ports 201, 301, 401, 402. The second coupling optical splitter 162 may include ports 231, 232, 411, 412. The port 201 can be connected to the first optoelectronic module 12 to transmit the first optical signal, and divide the first optical signal into two parts. One part transmits the signal to the second coupling optical splitter through the port 301, and the other part is divided into two paths and transmitted to the first sub-optoelectronic module 131 and the second sub-optoelectronic module 132 through the ports 401 and 402 respectively. The port 401 can be connected to the first sub-optoelectronic module 131 to transmit the second optical signal, the port 402 can be connected to the second sub-optoelectronic module 132 to transmit the third optical signal, the port 301 can be connected to the port 231 to transmit the fourth optical signal, the port 411 can be connected to the third sub-optoelectronic module 133 to transmit the fifth optical signal, and the port 412 can be connected to the fourth sub-optoelectronic module 134 to connect the sixth optical signal.

[0191] In an alternative embodiment, please refer to Figure 27 , Figure 27 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 27 shown, the vehicle-mounted communication system 10 may further include a fourth optical switch 154 provided on the seventh optical path.

[0192] In a specific implementation, the fourth optical switch 154 can be used to conduct when the third optical path fails, so that the first optoelectronic module 12 transmits the first optical signal through the seventh optical path. And / or, the fourth optical switch 154 can also be used to turn off when the third optical path is unobstructed, so that the first optoelectronic module 12 transmits the first optical signal through the third optical path.

[0193] Or, if the vehicle-mounted controller 11 determines that the third optical path is interrupted, it can control the fourth optical switch 154 to conduct, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the fifth optical path and the seventh optical path. If the vehicle-mounted controller 11 determines that the ninth optical path is unobstructed, it can control the fourth optical switch 154 to turn off, so that the first optical signal is transmitted between the first optoelectronic module 12 and the second optoelectronic module 13 through the third optical path and the fifth optical path.

[0194] Among them, the third optical path may include the first optoelectronic module 12 and the first coupling beam splitter 161. The fifth optical path may include the first coupling beam splitter 161 and the second coupling beam splitter 162. The seventh optical path may include the first optoelectronic module 12, the fourth optical switch 154, and the second coupling beam splitter 162.

[0195] It should be understood that the vehicle-mounted communication system 10 preferably uses the third optical path, that is, the primary optical path, to transmit the first optical signal. When the vehicle-mounted controller 11 determines that the primary optical path is interrupted, the vehicle-mounted controller 11 can switch to using the seventh optical path, that is, the backup optical path, to transmit the first optical signal.

[0196] In an alternative embodiment, the sixth optical path and the seventh optical path described above may exist simultaneously in the vehicle-mounted communication system 10. Please refer to Figure 28 , Figure 28 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 28 shown, the vehicle-mounted communication system 10 may include a third optical path, a fifth optical path, a sixth optical path, and a seventh optical path. The third optical path can connect the first optoelectronic module 12 and the first coupling beam splitter 161. Both the fifth optical path and the sixth optical path can connect the first coupling beam splitter 161 and the second coupling beam splitter 162. The seventh optical path can connect the first optoelectronic module 12 and the second coupling beam splitter 162.

[0197] In a specific implementation, the first optoelectronic module can transmit the first optical signal through the third optical path and / or the seventh optical path, and the fifth optical path and / or the sixth optical path.

[0198] Optionally, when the third optical path fails, the first optoelectronic module 12 can transmit the first optical signal through the seventh optical path. When the fifth optical path fails, the first coupling beam splitter 161 can transmit the fourth optical signal through the sixth optical path.

[0199] Optionally, please refer to Figure 29 ,Figure 29 is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 29 shown, the first coupling optical splitter 161 may include a port 201, a port 202, a port 301, a port 401, and a port 402. The second coupling optical splitter 162 may include a port 231, a port 232, a port 312, a port 411, and a port 412. The port 201 may be connected to the first optoelectronic module 12 to transmit a first optical signal, and divide the first optical signal into two parts. One part transmits the signal to the second coupling optical splitter through the port 301, and the other part is divided into two paths and transmitted to the first sub-optoelectronic module 131 and the second sub-optoelectronic module 132 through the ports 401 and 402 respectively. The port 232 may be connected to the first optoelectronic module 12 to transmit a first optical signal, the port 401 may be connected to the first sub-optoelectronic module 131 to transmit a second optical signal, the port 402 may be connected to the second sub-optoelectronic module 132 to transmit a third optical signal, the port 301 may be connected to the port 231 to transmit a fourth optical signal, the port 312 may be connected to the port 202 through the third optical switch 153 to transmit a fourth optical signal, the port 411 may be connected to the third sub-optoelectronic module 133 to transmit a fifth optical signal, and the port 412 may be connected to the fourth sub-optoelectronic module 134 to connect a sixth optical signal.

[0200] Please refer to Figure 30 , Figure 30 is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 30 shown, the vehicle-mounted communication system 10 may include a third optical switch 153 disposed in the sixth optical path and a fourth optical switch 154 disposed in the seventh optical path.

[0201] In a specific implementation, the third optical switch 153 may be used to conduct when the fifth optical path fails, so that the first coupling optical splitter 161 transmits the fourth optical signal through the sixth optical path. The third optical switch 153 may also be used to turn off when the fifth optical path is in a conducting state, so that the first coupling optical splitter 161 transmits the fourth optical signal through the fifth optical path. The fourth optical switch 154 may be used to conduct when the third optical path fails, so that the first optoelectronic module 12 transmits the first optical signal through the seventh optical path. The fourth optical switch 154 may also be used to turn off when the third optical path is in a conducting state, so that the first optoelectronic module 12 transmits the first optical signal through the third optical path.

[0202] Alternatively, if the vehicle-mounted controller 11 determines that the third optical path is interrupted and the fifth optical path is unobstructed, it can control the fourth optical switch 154 to conduct, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the seventh optical path and the fifth optical path. Optionally, if the vehicle-mounted controller 11 determines that the third optical path is interrupted, it can also control the third optical switch 153 to conduct, so that the first coupling beam splitter 161 and the second optoelectronic module 13 can also transmit the first optical signal through the sixth optical path. If the vehicle-mounted controller 11 determines that the third optical path is unobstructed and the fifth optical path is unobstructed, it can control the fourth optical switch 154 to turn off, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the third optical path and the fifth optical path.

[0203] If the vehicle-mounted controller 11 determines that the fifth optical path is interrupted and the third optical path is unobstructed, it can control the third optical switch 153 to conduct, so that the first coupling beam splitter 161 and the second optoelectronic module 13 transmit the first optical signal through the third optical path and the sixth optical path. If the vehicle-mounted controller 11 determines that the fifth optical path is unobstructed and the third optical path is unobstructed, it can control the third optical switch 153 to turn off, so that the first coupling beam splitter 161 and the second optoelectronic module 13 transmit the first optical signal through the third optical path and the fifth optical path.

[0204] If the vehicle-mounted controller 11 determines that both the third optical path and the fifth optical path are interrupted, it can control the third optical switch 153 to conduct and the fourth optical switch 154 to conduct, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the seventh optical path and the sixth optical path. If the vehicle-mounted controller 11 determines that both the third optical path and the fifth optical path are unobstructed, it can control the third optical switch 153 to turn off and the fourth optical switch 154 to turn off, so that the first optoelectronic module 12 and the second optoelectronic module 13 transmit the first optical signal through the third optical path and the fourth optical path.

[0205] Among them, the third optical path may include the first optoelectronic module 12 and the first coupling beam splitter 161. The fifth optical path may include the first coupling beam splitter 161 and the second coupling beam splitter 162. The sixth optical path may include the first coupling beam splitter 161, the third optical switch 153 and the second coupling beam splitter 162. The seventh optical path may include the first optoelectronic module 12, the fourth optical switch 154 and the second coupling beam splitter 162.

[0206] It should be understood that the vehicle-mounted communication system 10 preferably uses the third optical path and the fifth optical path, that is, the main optical path, to transmit the first optical signal. When the vehicle-mounted controller 11 determines that the main optical path is interrupted, the vehicle-mounted controller 11 can switch to using the sixth optical path and the seventh optical path, that is, the backup optical path, to transmit the first optical signal.

[0207] In the above implementation, the first optoelectronic module 12 and the second optoelectronic module 13 can be connected through the main optical path composed of the third optical path and the fifth optical path, or can be connected through the backup optical path composed of the sixth optical path and the seventh optical path. When the vehicle-mounted controller 11 determines that the main optical path is interrupted, it can control the third optical switch 153 and the fourth optical switch 154 to conduct, so that the vehicle-mounted communication system 10 switches to use the backup optical path to transmit the first optical signal, ensuring that the communication of the vehicle-mounted communication system 10 is not interrupted and improving the reliability of the vehicle-mounted communication system 10.

[0208] In an alternative embodiment, please refer to Figure 31 , Figure 31 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 31 shown, the vehicle-mounted communication system may further include an eighth optical path and a ninth optical path. The vehicle-mounted device 14 may include a seventh vehicle-mounted device 147. The second optoelectronic module 13 may include a fifth sub-optoelectronic module 135 and a sixth sub-optoelectronic module 136. The seventh vehicle-mounted device 147 may be electrically connected to the fifth sub-optoelectronic module 135 and the sixth sub-optoelectronic module 136 respectively. The eighth optical path may connect the first coupling beam splitter 161 to the fifth sub-optoelectronic module 135, and the ninth optical path may connect the first coupling beam splitter 161 to the sixth sub-optoelectronic module.

[0209] In a specific implementation, the first coupling beam splitter 161 may transmit an optical signal through the eighth optical path and / or the ninth optical path. Optionally, the first coupling beam splitter 161 may decompose the received first optical signal into a second optical signal and a third optical signal. The first coupling beam splitter 161 may transmit the second optical signal through the eighth optical path, and the first coupling beam splitter 161 may transmit the third optical signal through the ninth optical path.

[0210] Optionally, when the eighth optical path fails, the first coupling beam splitter 161 may transmit an optical signal through the ninth optical path.

[0211] In an alternative embodiment, please refer to Figure 32 , Figure 32 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 32 shown, the vehicle-mounted communication system 10 may further include a fifth optical switch 155 disposed on the ninth optical path.

[0212] In a specific implementation, the fifth optical switch 155 can be used to conduct when the eighth optical path fails, so that the first coupling beam splitter 161 transmits an optical signal through the ninth optical path. The fifth optical switch 155 can also be used to turn off when the eighth optical path is unobstructed, so that the first coupling beam splitter 161 transmits an optical signal through the eighth optical path.

[0213] Alternatively, if the vehicle-mounted controller 11 determines that the eighth optical path is interrupted, it can control the fifth optical switch 155 to conduct, so that the first coupling and splitting optical device 161 and the sixth sub-optical and electrical module 136 transmit the third optical signal through the ninth optical path. The sixth sub-optical and electrical module 136 can be used to perform optoelectronic conversion and protocol conversion on the third optical signal to obtain a second electrical signal, and send the second electrical signal to the seventh vehicle-mounted device 147. If the vehicle-mounted controller 11 determines that the eighth optical path is unobstructed, it can control the fifth optical switch 155 to turn off, so that the first coupling and splitting optical device 161 and the fifth sub-optical and electrical module 135 transmit the second optical signal through the eighth optical path. The fifth sub-optical and electrical module 135 can be used to perform optoelectronic conversion and protocol conversion on the second optical signal to obtain a second electrical signal, and send the second electrical signal to the seventh vehicle-mounted device 147.

[0214] Among them, the eighth optical path may include the first coupling and splitting optical device 161 and the fifth sub-optical and electrical module 135. The ninth optical path may include the first coupling and splitting optical device 161, the fifth optical switch 155, and the sixth sub-optical and electrical module 136.

[0215] It should be understood that the vehicle-mounted communication system 10 preferably uses the eighth optical path, i.e., the primary optical path, to transmit the first optical signal. When the vehicle-mounted controller 11 determines that the primary optical path is interrupted, the vehicle-mounted controller 11 will switch to using the ninth optical path, i.e., the redundant optical path, to transmit the first optical signal.

[0216] Optionally, in the vehicle-mounted communication system 10, the vehicle-mounted controller 11 and the vehicle-mounted device 14 can implement point-to-multipoint vehicle-mounted communication through the first optoelectronic module 12, the coupling and splitting optical device, and the second optoelectronic module 13, or can directly implement point-to-point vehicle-mounted communication through the first optoelectronic module 12 and the second optoelectronic module 13. That is to say, among the multiple vehicle-mounted devices included in the vehicle-mounted communication system 10, some vehicle-mounted devices can be connected to the vehicle-mounted controller 11 through the first optoelectronic module 12, the coupling and splitting optical device, and the second optoelectronic module 13 to transmit signals, and some other vehicle-mounted devices can be directly connected to the vehicle-mounted controller 11 through the first optoelectronic module 12 and the second optoelectronic module 13 to transmit signals.

[0217] Exemplarily, please refer to Figure 33 , Figure 33 which is a schematic structural diagram of another vehicle-mounted communication system provided by an embodiment of the present application. As Figure 33 shown, the second optoelectronic module 13 may further include a seventh sub-optoelectronic module 137, and the vehicle-mounted device 14 may further include an eighth vehicle-mounted device 148. The seventh sub-optoelectronic module 137 can be optically connected to the first optoelectronic module 12, and the seventh sub-optoelectronic module 137 can be electrically connected to the eighth vehicle-mounted device 148.

[0218] In a specific implementation, the first optoelectronic module 12 can be used to receive an electrical signal that meets the first communication protocol sent by the vehicle-mounted controller 11, perform electro-optical conversion and protocol conversion on the first electrical signal to obtain a first optical signal that meets the second communication protocol, and send the first optical signal to the first coupling optical splitter 161 and the seventh sub-optoelectronic module 137 respectively. The seventh sub-optoelectronic module 137 can perform electro-optical conversion and protocol conversion on the first optical signal to obtain a second electrical signal that meets the first communication protocol, and send the second electrical signal to the eighth vehicle-mounted device 148. The first coupling optical splitter 161 can be used to decompose the first optical signal into a second optical signal and a third optical signal, send the second optical signal to the first sub-optoelectronic module 131, and send the third optical signal to the second sub-optoelectronic module 132. The first sub-optoelectronic module 131 can perform electro-optical conversion and protocol conversion on the second optical signal to obtain a second electrical signal that meets the first communication protocol, and send the second electrical signal to the third vehicle-mounted device 143. The second sub-optoelectronic module 132 can perform electro-optical conversion and protocol conversion on the third optical signal to obtain a second electrical signal that meets the first communication protocol, and send the second electrical signal to the fourth vehicle-mounted device 144.

[0219] It should be noted that the foregoing describes the case where the vehicle-mounted communication system 10 includes two coupling optical splitters, namely the first coupling optical splitter 161 and the second coupling optical splitter 162. In actual implementation, the vehicle-mounted communication system 10 may include three or more coupling optical splitters. For the specific structure and functions, reference can be made to the structure and functions of the vehicle-mounted communication system 10 described above when it includes two coupling optical splitters. To avoid redundancy, it will not be elaborated here. Preferably, the vehicle-mounted communication system 10 may include 1 to 20 coupling optical splitters.

[0220] It should be noted that the foregoing describes the case where there is one coupling optical splitter in the vehicle-mounted communication system 10, and one vehicle-mounted device is directly connected to the vehicle-mounted controller 11 through the first optoelectronic module 12 and the second optoelectronic module 13 to transmit signals. In actual implementation, the vehicle-mounted communication system 10 may also include two or more coupling optical splitters, and furthermore, multiple vehicle-mounted devices may be directly connected to the vehicle-mounted controller 11 through the first optoelectronic module 12 and the second optoelectronic module 13 to transmit signals.

[0221] In the above implementation, the vehicle-mounted controller 11 and the vehicle-mounted device 14 can achieve point-to-multipoint communication in the vehicle-mounted communication system through the coupling optical splitter, or directly achieve point-to-point communication in the vehicle-mounted communication system through the optoelectronic module, thereby improving the communication rate and communication bandwidth and reducing the structural complexity of the vehicle-mounted communication system.

[0222] In the embodiments of the present application, in-vehicle communication system 10 can be optically connected through a waveguide. Optionally, the waveguide can be an optical fiber, which can be used to transmit the first optical signal. Exemplarily, the optical fiber can be a special fiber optic composite cable, which can provide communication functions and power supply functions simultaneously in in-vehicle communication system 10. The optical fiber can be a single-mode optical fiber, a multi-mode optical fiber, a plastic optical fiber, etc. The embodiments of the present application do not specifically limit the implementation form of the waveguide.

[0223] In the embodiments of the present application, the optoelectronic module, the coupling optical splitter, the optical switch, the controllable switch, etc. can be controlled by vehicle-mounted controller 11, or can be controlled by other controllers. The embodiments of the present application do not specifically limit this.

[0224] In the embodiments of the present application, in-vehicle communication system 10 can be electrically connected through a line. Optionally, the line can be a circuit integrated on a circuit board, or can be a communication cable. The embodiments of the present application do not specifically limit the implementation form of the line.

[0225] The embodiments of the present application also provide a vehicle. Please refer to Figure 34 , Figure 34 which is a schematic structural diagram of a vehicle provided by the embodiments of the present application. As Figure 34 shown, the vehicle can include the in-vehicle communication system 10 described in the above embodiments. The vehicle can also include multiple wheels, a seat, an in-vehicle power supply, electrical equipment, etc.

[0226] It should be noted that for any of the above embodiments of the in-vehicle communication system and the vehicle, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present application is not limited by the described action sequence, because according to the present application, some of its steps can be in other sequences or be carried out simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential to the present application.

[0227] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps is not limited to the listed steps, but optionally further includes steps not listed, or optionally further includes other steps inherent to these processes, methods, products or devices.

[0228] References to "embodiments" in this specification mean that particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will understand explicitly and implicitly that the embodiments described herein can be combined with other embodiments.

[0229] Although the present application has been described in connection with various embodiments, those skilled in the art will appreciate and achieve other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims during the implementation of the claimed application. In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plurality. Certain measures are recited in mutually different dependent claims, but this does not indicate that these measures cannot be combined to achieve a favorable effect.

[0230] The above has introduced the embodiments of the present application in detail. Specific examples are used herein to illustrate the principles and implementation manners of a vehicle-mounted communication system and a vehicle of the present application. The description of the above embodiments is intended to help understand the method and core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of a vehicle-mounted communication system and a vehicle of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

[0231] Those skilled in the art should be able to realize that in one or more of the above examples, the functions described in the present application can be implemented by hardware, software, firmware, or any combination thereof. When implemented in software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, where communication media includes any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium accessible by a general or special-purpose computer.

[0232] The specific implementation manners described above further elaborate on the purpose, technical solutions, and beneficial effects of the present application. It should be understood that the above is only the specific implementation manners of the present application and is not used to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the present application should be included in the protection scope of the present application.

Claims

1. A vehicle-mounted communication system, characterized in that, the vehicle-mounted communication system includes a vehicle-mounted controller, a first optoelectronic module, a second optoelectronic module and vehicle-mounted equipment, and the vehicle-mounted controller is connected to the vehicle-mounted equipment through the first optoelectronic module and the second optoelectronic module; the vehicle-mounted controller is configured to send a first electrical signal to the first optoelectronic module; the first optoelectronic module is configured to perform protocol conversion and optoelectronic conversion on the first electrical signal to obtain a first optical signal, and send the first optical signal to the second optoelectronic module; the second optoelectronic module is configured to perform optoelectronic conversion and protocol conversion on the first optical signal to obtain a second electrical signal, and send the second electrical signal to the vehicle-mounted equipment.

2. The vehicle-mounted communication system according to claim 1, characterized in that, the first electrical signal carries target data, and the second electrical signal carries the target data.

3. The vehicle-mounted communication system according to claim 2, characterized in that, the first optical signal is that the first optoelectronic module performs protocol conversion on the first electrical signal that meets the first communication protocol to obtain a third electrical signal that meets the second communication protocol, and performs electro-optical conversion on the third electrical signal to obtain an optical signal that meets the second communication protocol, wherein the first communication protocol is the communication transmission protocol set between the vehicle-mounted controller and the vehicle-mounted equipment, and the second communication protocol is the communication transmission protocol set between the first optoelectronic module and the second optoelectronic module.

4. The vehicle-mounted communication system according to claim 3, characterized in that, the second electrical signal is that the second optoelectronic module performs optoelectronic conversion on the first optical signal to obtain a fourth electrical signal that meets the second communication protocol, and performs protocol conversion on the fourth electrical signal to obtain an electrical signal that meets the first communication protocol.

5. The vehicle-mounted communication system according to any one of claims 1-4, characterized in that, the first optoelectronic module includes a protocol conversion module and an optical module, and / or the second optoelectronic module includes an optical module and a protocol conversion module; wherein, the optical module is electrically connected to the protocol conversion module; the protocol conversion module is configured to convert the received electrical signal that meets the first communication protocol into an electrical signal that meets the second communication protocol, and / or convert the received electrical signal that meets the second communication protocol into an electrical signal that meets the first communication protocol; the optical module is configured to convert the received electrical signal into a corresponding optical signal and output it, and / or convert the received optical signal into a corresponding electrical signal and output it.

6. The vehicle-mounted communication system according to any one of claims 1-5, characterized in that, the vehicle-mounted communication system further includes a third optoelectronic module, and the vehicle-mounted controller is configured to be electrically connected to the third optoelectronic module and send the first electrical signal to the third optoelectronic module when a communication failure occurs between the vehicle-mounted controller and the first optoelectronic module. The third optoelectronic module is used to perform optoelectronic conversion and protocol conversion on the first electrical signal to obtain the first optical signal when there is a communication failure between the vehicle-mounted controller and the first optoelectronic module, and to send the first optical signal to the second optoelectronic module.

7. The vehicle-mounted communication system according to claim 5, wherein, the vehicle-mounted communication system further includes a first controllable switch device, and the first controllable switch device is used to conduct the vehicle-mounted controller and the third optoelectronic module when there is a communication failure between the vehicle-mounted controller and the first optoelectronic module, so that the vehicle-mounted controller sends the first electrical signal to the third optoelectronic module; the first controllable switch device is further used to turn off the connection between the vehicle-mounted controller and the third optoelectronic module when the communication between the vehicle-mounted controller and the first optoelectronic module is normal, so that the vehicle-mounted controller sends the first electrical signal to the first optoelectronic module.

8. The vehicle-mounted communication system according to any one of claims 1-5, wherein, the vehicle-mounted communication system includes a first optical path and a second optical path, and both the first optical path and the second optical path are connected to the first optoelectronic module and the second optoelectronic module; the first optoelectronic module transmits the first optical signal through the first optical path and / or the second optical path.

9. The vehicle-mounted communication system according to claim 8, wherein, when the first optical path fails, the first optoelectronic module is used to transmit the first optical signal through the second optical path.

10. The vehicle-mounted communication system according to claim 9, wherein, the first optoelectronic module includes a first optical module, a second optical module and a first protocol conversion module, the second optoelectronic module includes a third optical module, a fourth optical module and a second protocol conversion module, the first protocol conversion module is electrically connected to the first optical module and the second optical module respectively, and the second protocol conversion module is electrically connected to the third optical module and the fourth optical module respectively; the first optical path includes the first optical module and the third optical module; the second optical path includes the second optical module and the fourth optical module.

11. The vehicle-mounted communication system according to claim 10, wherein, the vehicle-mounted communication system includes a first optical switch disposed on the second optical path; the first optical switch is used to conduct when the first optical path fails, so that the first optoelectronic module transmits the first optical signal through the second optical path; and / or, the first optical switch is further used to turn off when the first optical path is unobstructed, so that the first optoelectronic module transmits the first optical signal through the first optical path.

12. The vehicle-mounted communication system according to claim 10, wherein, the vehicle-mounted communication system further includes a second controllable switch device disposed between the first protocol conversion module and the second optical module; the second controllable switch device is used to conduct when the first optical path fails, so that the first optoelectronic module transmits the first optical signal through the second optical path; And / or, the second controllable switch device is further configured to turn off when the first optical path is in communication, so that the first optoelectronic module transmits the first optical signal through the first optical path.

13. The vehicle-mounted communication system according to any one of claims 10-12, wherein, the vehicle-mounted device includes a first vehicle-mounted device and a second vehicle-mounted device, and the second optoelectronic module is electrically connected to the first vehicle-mounted device and the second vehicle-mounted device respectively; the second optoelectronic module is further configured to send the second electrical signal to the first vehicle-mounted device and the second vehicle-mounted device respectively.

14. The vehicle-mounted communication system according to any one of claims 1-5, wherein, the vehicle-mounted communication system further includes a first coupling optical splitter, the second optoelectronic module includes a first sub-optoelectronic module and a second sub-optoelectronic module, the vehicle-mounted device includes a third vehicle-mounted device and a fourth vehicle-mounted device, the first coupling optical splitter is optically connected to the first optoelectronic module, the first sub-optoelectronic module and the second sub-optoelectronic module respectively, the first sub-optoelectronic module is electrically connected to the third vehicle-mounted device, and the second sub-optoelectronic module is electrically connected to the fourth vehicle-mounted device; the first coupling optical splitter is configured to receive the first optical signal, decompose the first optical signal into a second optical signal and a third optical signal, and transmit the second optical signal to the first sub-optoelectronic module and transmit the third optical signal to the second sub-optoelectronic module; the first sub-optoelectronic module is configured to perform photoelectric conversion and protocol conversion on the second optical signal to obtain the second electrical signal, and send the second electrical signal to the third vehicle-mounted device; the second sub-optoelectronic module is configured to perform photoelectric conversion and protocol conversion on the third optical signal to obtain the second electrical signal, and send the second electrical signal to the fourth vehicle-mounted device.

15. The vehicle-mounted communication system according to claim 14, wherein, the vehicle-mounted communication system includes a third optical path and a fourth optical path, and both the third optical path and the fourth optical path are connected to the first optoelectronic module and the first coupling optical splitter; the first optoelectronic module transmits the first optical signal through the third optical path and / or the fourth optical path.

16. The vehicle-mounted communication system according to claim 15, wherein, when the third optical path fails, the first optoelectronic module transmits the first optical signal through the fourth optical path.

17. The vehicle-mounted communication system according to claim 16, wherein, the first optoelectronic module includes a first optical module, a second optical module and a first protocol conversion module, and the first protocol conversion module is electrically connected to the first optical module and the second optical module respectively; the third optical path includes the first optical module and the first coupling optical splitter; the fourth optical path includes the second optical module and the first coupling optical splitter.

18. The vehicle-mounted communication system according to claim 17, wherein, the vehicle-mounted communication system further includes a second optical switch disposed on the fourth optical path; The second optical switch is used to conduct when the third optical path fails, so that the first optoelectronic module transmits the first optical signal through the fourth optical path; and / or, the second optical switch is further used to turn off when the third optical path is unobstructed, so that the first optoelectronic module transmits the first optical signal through the third optical path.

19. The vehicle-mounted communication system according to any one of claims 15-18, characterized in that the vehicle-mounted communication system further includes a second coupling optical splitter, the second optoelectronic module includes a first sub-optoelectronic module, a second sub-optoelectronic module, a third sub-optoelectronic module and a fourth sub-optoelectronic module, the vehicle-mounted devices include a third vehicle-mounted device, a fourth vehicle-mounted device, a fifth vehicle-mounted device and a sixth vehicle-mounted device, the first coupling optical splitter is optically connected to the first optoelectronic module, the first sub-optoelectronic module and the second sub-optoelectronic module respectively, the second coupling optical splitter is optically connected to the first coupling optical splitter, the third sub-optoelectronic module and the fourth sub-optoelectronic module respectively, the first sub-optoelectronic module is electrically connected to the third vehicle-mounted device, the second sub-optoelectronic module is electrically connected to the fourth vehicle-mounted device, the third sub-optoelectronic module is electrically connected to the fifth vehicle-mounted device, and the fourth sub-optoelectronic module is electrically connected to the sixth vehicle-mounted device; The first coupling optical splitter is used to receive the first optical signal, decompose the first optical signal into a second optical signal, a third optical signal and a fourth optical signal, and send the second optical signal to the first sub-optoelectronic module, send the third optical signal to the second sub-optoelectronic module, and send the fourth optical signal to the second coupling optical splitter; The second coupling optical splitter is used to decompose the fourth optical signal into a fifth optical signal and a sixth optical signal, and send the fifth optical signal to the third sub-optoelectronic module and the sixth optical signal to the fourth sub-optoelectronic module; The third sub-optoelectronic module is used to perform optoelectronic conversion and protocol conversion on the fifth optical signal to obtain the second electrical signal, and send the second electrical signal to the fifth vehicle-mounted device; The fourth sub-optoelectronic module is used to perform optoelectronic conversion and protocol conversion on the sixth optical signal to obtain the second electrical signal, and send the second electrical signal to the sixth vehicle-mounted device.

20. The vehicle-mounted communication system according to claim 19, characterized in that the vehicle-mounted system further includes a fifth optical path and a sixth optical path, and both the fifth optical path and the sixth optical path connect the first coupling optical splitter and the second coupling optical splitter; The first coupling optical splitter transmits the fourth optical signal through the fifth optical path and / or the sixth optical path.

21. The vehicle-mounted communication system according to claim 20, characterized in that when the fifth optical path fails, the first coupling optical splitter transmits the fourth optical signal through the sixth optical path.

22. The vehicle-mounted communication system according to claim 21, characterized in that the vehicle-mounted communication system includes a third optical switch disposed on the sixth optical path; The third optical switch is used to conduct when the fifth optical path fails, so that the first coupled optical splitter transmits the fourth optical signal through the sixth optical path; and / or, the third optical switch is further used to turn off when the fifth optical path is in a conducting state, so that the first coupled optical splitter transmits the fourth optical signal through the fifth optical path.

23. The vehicle-mounted communication system according to claim 22, wherein, the vehicle-mounted communication system further includes a seventh optical path, and the seventh optical path connects the first optoelectronic module and the second coupled optical splitter; the first optoelectronic module transmits the first optical signal through the third optical path and / or the seventh optical path.

24. The vehicle-mounted communication system according to claim 23, wherein, when the third optical path fails, the first optoelectronic module transmits the first optical signal through the seventh optical path.

25. The vehicle-mounted communication system according to claim 24, wherein, the vehicle-mounted communication system includes a fourth optical switch disposed on the seventh optical path; the fourth optical switch is used to conduct when the third optical path fails, so that the first optoelectronic module transmits the first optical signal through the seventh optical path; and / or, the fourth optical switch is further used to turn off when the third optical path is in a conducting state, so that the first optoelectronic module transmits the first optical signal through the third optical path.

26. A vehicle, wherein, the vehicle includes the vehicle-mounted communication system according to any one of claims 1-25.

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