Optical communication system, vehicle electronic and electrical system, and vehicle

Abstract

An optical communication system, a vehicle electronic and electrical system, and a vehicle. The optical communication system comprises: an optical line terminal (OLT) device and at least one optical network unit (ONU) device. The OLT device communicates with the at least one ONU device by means of an optical fiber; and the OLT device comprises at least one downstream optical transmitting module and at least one upstream optical transmitting module. The OLT device is configured to modulate a downstream optical carrier transmitted by the downstream optical transmitting module to generate a downstream optical signal, and send the downstream optical signal to the at least one ONU device by means of the optical fiber; and a first ONU device among the at least one ONU device is configured to receive an upstream optical carrier transmitted by the upstream optical transmitting module, modulate the upstream optical carrier to generate an upstream optical signal, and send the upstream optical signal to the OLT device by means of the optical fiber.

Description

Optical communication systems, vehicle electronic and electrical systems, and vehicles

[0001] This application claims priority to Chinese patent application No. 202411636624.2, filed on November 14, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of vehicle optical communication technology, and more particularly to an optical communication system, a vehicle's electronic and electrical system, and a vehicle. Background Technology

[0003] With the emergence of intelligent modules such as intelligent driving and intelligent cockpits, the demand for data volume and data transmission rate in vehicles is also growing rapidly. Summary of the Invention

[0004] This disclosure provides an optical communication system, an electronic and electrical system for a vehicle, and a vehicle.

[0005] On one hand, an optical communication system is provided. This optical communication system includes: an Optical Line Terminal (OLT) device and at least one Optical Network Unit (ONU) device. The OLT device and the at least one ONU device communicate via optical fiber; the OLT device includes at least one downlink optical transmitter module and at least one uplink optical transmitter module; the OLT device is configured to modulate a downlink optical carrier transmitted by the downlink optical transmitter module to generate a downlink optical signal, and transmit the downlink optical signal to the at least one ONU device via optical fiber; a first ONU device among the at least one ONU device is configured to receive an uplink optical carrier transmitted by the uplink optical transmitter module, modulate the uplink optical carrier to generate an uplink optical signal, and transmit the uplink optical signal to the OLT device via optical fiber.

[0006] The optical communication system provided in some embodiments of this disclosure, by setting up independent downlink and uplink optical transmission modules in the OLT device, provides optical carriers for downlink communication from the OLT device to the ONU device and for uplink communication from the ONU device to the OLT device, respectively. This makes the two signals completely independent at the physical level and prevents interference between them, thus avoiding communication failures caused by signal interference. Furthermore, for the two independently set optical transmission modules, when one optical transmission module fails, it will not affect the other optical transmission module, ensuring the continuity of communication, thereby improving the safety and reliability of the vehicle-mounted optical communication system.

[0007] In some embodiments, the at least one downlink optical transmitting module includes a plurality of downlink optical transmitting modules. The plurality of downlink optical transmitting modules includes at least a first downlink optical transmitting module and a second downlink optical transmitting module. The plurality of downlink optical transmitting modules satisfy at least one of the following: the first downlink optical transmitting module is configured to transmit a downlink optical carrier when the second downlink optical transmitting module fails; or, the second downlink optical transmitting module is configured to transmit a downlink optical carrier when the first downlink optical transmitting module fails.

[0008] In some embodiments, the at least one uplink optical transmitting module includes a plurality of uplink optical transmitting modules. The plurality of uplink optical transmitting modules includes at least a first uplink optical transmitting module and a second uplink optical transmitting module. The plurality of uplink optical transmitting modules satisfy at least one of the following: the first uplink optical transmitting module is configured to transmit an uplink optical carrier when the second uplink optical transmitting module fails; or, the second uplink optical transmitting module is configured to transmit an uplink optical carrier when the first uplink optical transmitting module fails.

[0009] In some embodiments, the uplink optical transmitter module is further configured to perform at least one of the following: transmit a downlink optical carrier when the downlink optical transmitter module fails; or, transmit an uplink optical carrier when the uplink optical transmitter module fails.

[0010] In some embodiments, the ONU device includes an optical switch module. The optical switch module is configured to: turn on during a transmission window allocated to the ONU device, so that the ONU device outputs an uplink optical signal; or turn off during a transmission window not allocated to the ONU device, so that the ONU device stops outputting an uplink optical signal.

[0011] In some embodiments, the optical switch module includes a variable optical attenuator configured to: adjust the power of the uplink optical signal to be greater than or equal to a power threshold within a transmission window allocated to the ONU device; or adjust the power of the uplink optical signal to be less than a power threshold within a transmission window not allocated to the ONU device.

[0012] In some embodiments, the ONU device further includes a control chip configured to: control the optical switch module to turn on within a transmission window allocated to the ONU device; or control the optical switch module to turn off within a transmission window not allocated to the ONU device.

[0013] In some embodiments, the ONU device is configured to: modulate an uplink optical carrier within a transmission window allocated to the ONU device to generate an uplink optical signal carrying data information; or, modulate an uplink optical carrier within a transmission window not allocated to the ONU device to generate an uplink optical signal carrying setting information.

[0014] In some embodiments, the optical communication system provided in this disclosure further includes a downlink splitter module. The input of the downlink splitter module is connected to an OLT device, and the output of the downlink splitter module is connected to at least one ONU device. The downlink splitter module is configured to split the downlink optical signal output by the OLT device into multiple parts and transmit them to at least one ONU device respectively.

[0015] In some embodiments, the optical communication system provided in this disclosure further includes an uplink splitter module and an uplink combiner module. The input of the uplink splitter module is connected to an OLT device, and the output of the uplink splitter module is connected to at least one ONU device. The uplink splitter module is configured to split the uplink optical carrier output by the OLT device into multiple parts and transmit them separately to at least one ONU device. The input of the combiner module is connected to at least one ONU device, and the output of the combiner module is connected to the OLT device. The combiner module is configured to combine and transmit the uplink optical signals sent by at least one ONU device to the OLT device.

[0016] On the other hand, an electronic and electrical system for a vehicle is provided. This electronic and electrical system includes the optical communication system described in any of the above embodiments. The electronic and electrical system also includes a central controller and electronic components of the vehicle, the electronic components including at least one of sensors or actuators; an OLT device is integrated into the central controller, or the OLT device is connected to the vehicle's central controller; an ONU device is connected to the electronic components via optical fiber communication or electrical communication, or the ONU device is integrated into the electronic components.

[0017] In another aspect, an optical communication system is provided. This optical communication system includes: multiple optical communication subnetworks. The multiple optical communication subnetworks include at least a first optical communication subnetwork and a second optical communication subnetwork connected to the first optical communication subnetwork. The first optical communication subnetwork includes a first OLT device and at least one first ONU device; the second optical communication subnetwork includes a second OLT device and at least one second ONU device. The first OLT device is configured to transmit at least one of a downlink optical signal or an uplink optical carrier to at least one second ONU device in the event of a failure of the second OLT device; the second OLT device is configured to transmit at least one of a downlink optical signal or an uplink optical carrier to at least one first ONU device in the event of a failure of the first OLT device.

[0018] In some embodiments, the second OLT device includes an uplink optical transmitter module and a downlink optical transmitter module. The uplink optical transmitter module is configured to transmit an uplink optical carrier, and the downlink optical transmitter module is configured to transmit a downlink optical carrier. The first OLT device is configured to perform at least one of the following: in the event of a failure of the downlink optical transmitter module of the second OLT device, transmitting a downlink optical signal to at least one second ONU device; or, in the event of a failure of the uplink optical transmitter module of the second OLT device, transmitting an uplink optical carrier to at least one second ONU device.

[0019] In some embodiments, the first OLT device includes an uplink optical transmitter module and a downlink optical transmitter module. The uplink optical transmitter module is configured to transmit an uplink optical carrier, and the downlink optical transmitter module is configured to transmit a downlink optical carrier. The second OLT device is configured to perform at least one of the following: in the event of a failure of the downlink optical transmitter module of the first OLT device, transmitting a downlink optical signal to at least one first ONU device; or, in the event of a failure of the uplink optical transmitter module of the first OLT device, transmitting an uplink optical carrier to at least one first ONU device.

[0020] In some embodiments, the first optical communication subnetwork and the second optical communication subnetwork are connected via a backup optical fiber.

[0021] In some embodiments, the backup optical fiber includes at least one of a first backup optical fiber, a second backup optical fiber, a third backup optical fiber, and a fourth backup optical fiber. The first backup optical fiber is configured to connect the first OLT device to the downlink signal transmission path of the second optical communication subnetwork; the second backup optical fiber is configured to connect the first OLT device to the uplink optical carrier transmission path of the second optical communication subnetwork; the third backup optical fiber is configured to connect the second OLT device to the downlink signal transmission path of the first optical communication subnetwork; and the fourth backup optical fiber is configured to connect the second OLT device to the uplink optical carrier transmission path of the first optical communication subnetwork.

[0022] In some embodiments, the second optical communication subnetwork further includes a second downlink splitter module. The input of the second downlink splitter module is connected to a second OLT device, and the output of the second downlink splitter module is connected to at least one second ONU device. The second downlink splitter module is configured to split the downlink optical signal input to the second downlink splitter module into multiple parts and transmit them to at least one second ONU device respectively. A first backup optical fiber is connected to the input of the first OLT device and the second downlink splitter module.

[0023] In some embodiments, the first optical communication subnetwork further includes a first downlink splitter module. The input of the first downlink splitter module is connected to a first OLT device, and the output of the first downlink splitter module is connected to at least one first ONU device. The first downlink splitter module is configured to split the downlink optical signal input to the first downlink splitter module into multiple parts and transmit them to at least one first ONU device respectively. A first backup optical fiber is connected to the output of the first downlink splitter module and the input of the second downlink splitter module.

[0024] In some embodiments, the second optical communication subnetwork further includes a second uplink splitter module. The input of the second uplink splitter module is connected to a second OLT device, and the output of the second uplink splitter module is connected to at least one second ONU device. The second uplink splitter module is configured to split the uplink optical carrier input to the second uplink splitter module into multiple parts and transmit them to at least one second ONU device respectively. A second backup optical fiber is connected to the input of the first OLT device and the second uplink splitter module.

[0025] In some embodiments, the first optical communication subnetwork further includes a first uplink splitter module. The input of the first uplink splitter module is connected to a first OLT device, and the output of the first uplink splitter module is connected to at least one first ONU device. The first uplink splitter module is configured to split the uplink optical carrier input to the first uplink splitter module into multiple parts and transmit them to at least one first ONU device respectively. A second backup optical fiber is connected to the output of the first uplink splitter module and the input of the second uplink splitter module.

[0026] In some embodiments, the first optical communication subnetwork further includes a first downlink splitter module. The input of the first downlink splitter module is connected to a first OLT device, and the output of the first downlink splitter module is connected to at least one first ONU device. The first downlink splitter module is configured to split the downlink optical signal input to the first downlink splitter module into multiple parts and transmit them to at least one first ONU device respectively. A third backup optical fiber connects a second OLT device and the input of the first downlink splitter module.

[0027] In some embodiments, the second optical communication subnetwork further includes a second downlink splitter module. The input of the second downlink splitter module is connected to a second OLT device, and the output of the second downlink splitter module is connected to at least one second ONU device. The second downlink splitter module is configured to split the downlink optical signal input to the second downlink splitter module into multiple parts and transmit them to at least one second ONU device respectively. A third backup optical fiber connects the output of the second downlink splitter module and the input of the first downlink splitter module.

[0028] In some embodiments, the first optical communication subnetwork further includes a first uplink splitter module. The input of the first uplink splitter module is connected to a first OLT device, and the output of the first uplink splitter module is connected to at least one first ONU device; the first uplink splitter module is configured to split the uplink optical carrier input to the first uplink splitter module into multiple parts and transmit them to at least one first ONU device respectively; a fourth backup optical fiber connects a second OLT device and the input of the first uplink splitter module.

[0029] In some embodiments, the second optical communication subnetwork further includes a second uplink splitter module. The input of the second uplink splitter module is connected to a second OLT device, and the output of the second uplink splitter module is connected to at least one second ONU device. The second uplink splitter module is configured to split the uplink optical carrier input to the second uplink splitter module into multiple parts and transmit them to at least one second ONU device respectively. A fourth backup optical fiber connects the output of the second uplink splitter module and the input of the first uplink splitter module.

[0030] In some embodiments, each of the plurality of optical communication subnetworks is configured to be responsible for communication between the vehicle’s central controller and electronics in a functional domain or body area.

[0031] In some embodiments, the OLT device of each of the multiple optical communication subnetworks is integrated in a central controller.

[0032] In some embodiments, at least one ONU device in each of the plurality of optical communication subnetworks is connected to electronic devices in a functional domain or vehicle body area via optical fiber communication or electrical communication.

[0033] In some embodiments, when the second OLT device provides an uplink optical carrier to at least one first ONU device, the controllers of some or all of the electronic devices connected to the at least one first ONU device are in a low-power operating state; or, when the first OLT device provides an uplink optical carrier to at least one second ONU device, the controllers of some or all of the electronic devices connected to the at least one second ONU device are in a low-power operating state.

[0034] In some embodiments, the OLT device is integrated into the vehicle's central controller, or the OLT device is connected to the vehicle's central controller.

[0035] In some embodiments, the ONU device is connected to the electronic devices in the vehicle via optical fiber communication or electrical communication, or the ONU device is integrated into the electronic devices in the vehicle, which include at least one of sensors or actuators.

[0036] In some embodiments, the uplink optical signal carries data information from electronic devices to be fed back to the central controller.

[0037] In some embodiments, the downlink optical signal carries instructions issued by the central controller to the electronic devices.

[0038] In another aspect, an electronic and electrical system for a vehicle is provided. This electronic and electrical system includes the optical communication system described according to any of the above embodiments. The electronic and electrical system also includes a central controller and vehicle electronics, the electronic devices including at least one of sensors or actuators; at least one of a first OLT device or a second OLT device is integrated into the central controller, or at least one of the first OLT device or the second OLT device is connected to the vehicle's central controller. An ONU device includes at least one first ONU device and at least one second ONU device. The ONU device is connected to the electronics via optical fiber communication or electrical communication, or the ONU device is integrated into the electronics.

[0039] In another aspect, a vehicle is provided. This vehicle includes the electronic and electrical systems described in the above embodiments. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. However, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 is an architecture diagram of a vehicle provided in an embodiment of this disclosure;

[0042] Figure 2 is an architecture diagram of an optical communication system provided in an embodiment of this disclosure;

[0043] Figure 3 is an architecture diagram of another optical communication system provided in an embodiment of this disclosure;

[0044] Figure 4 is an architecture diagram of another optical communication system provided in an embodiment of this disclosure;

[0045] Figure 5 is a schematic diagram of uplink time-division multiplexing optical signal modulation of an ONU device provided in an embodiment of this disclosure;

[0046] Figure 6 is a schematic diagram of another uplink time-division multiplexing optical signal modulation of the ONU device provided in the embodiment of this disclosure;

[0047] Figure 7 is an architecture diagram of another optical communication system provided in an embodiment of this disclosure;

[0048] Figure 8 is an architecture diagram of another optical communication system provided in an embodiment of this disclosure;

[0049] Figure 9 is an architecture diagram of another optical communication system provided in an embodiment of this disclosure. Detailed Implementation

[0050] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0051] In the description of this disclosure, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in practical applications, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0053] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0054] In some embodiments, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0055] In some embodiments, the words "exemplarily" or "for example" are used to indicate that something is an example, illustration, or illustration. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts by way of example.

[0056] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0057] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0058] With the development of artificial intelligence and wireless communication technologies, vehicles, as one of the most widely used tools, have become one of the best carriers for various new technologies. Intelligent driving and assisted driving services in vehicles place higher demands on in-vehicle communication (such as faster communication rates and wider communication bandwidth), and traditional in-vehicle communication systems can no longer meet the rapidly growing network needs.

[0059] Among related technologies, the advantages of optical fiber transmission have been proposed to meet the demands of high-speed, stable, and high-capacity vehicle-mounted communication. Optical fiber not only offers faster data transmission rates and larger spectrum resources, but also boasts low power consumption and strong anti-interference capabilities, making it more suitable for the complex electromagnetic environment within vehicles. Currently, the most mature solution is the vehicle-mounted passive optical network (PON) system.

[0060] The automotive PON system architecture divides the various components in the vehicle into Optical Line Terminal (OLT) and Optical Network Unit (ONU) sections. For example, the central computing platform, vehicle control, smart cockpit, and driver assistance control units can be classified as the OLT section; the intelligent sensors and actuators distributed throughout the vehicle can be classified as the ONU section; and the optical splitters and connectors distributed throughout the vehicle form the Optical Distribution Network (ODN) section of the automotive PON system. However, to ensure the safety requirements of vehicle production, vehicles need to operate normally within a temperature range of -40℃ to 105℃, while the optical transmitting modules in the automotive PON system are difficult to operate normally within this temperature range.

[0061] In related technologies, in order to solve the problem that the optical transmitting module in the vehicle-mounted PON system is difficult to operate normally in a temperature range of -40℃ to 105℃, it is proposed to combine silicon photonics technology with PON network application in vehicle-mounted communication systems.

[0062] Vehicle-mounted silicon photonics PON systems have the characteristics of high-speed transmission, high integration, and low power consumption. However, silicon itself does not emit light and requires an external light source. Therefore, a suitable optical communication system architecture for vehicle networks is proposed, which concentrates all the light-emitting units in the vehicle's water-cooling system for cooling. The optical bursts at the ONU rely on optical switches to control the central light source to complete the transmission of uplink signals.

[0063] However, this communication mechanism based on a central light source depends on the stability of the light source. If the light source malfunctions and cannot continue to emit light signals, it will affect the normal operation of the optical communication system, resulting in lower security and reliability of the optical communication system.

[0064] Against this backdrop, in order to address the issues of low security and reliability in traditional vehicle-mounted optical communication systems, this disclosure provides an optical communication system, a vehicle's electronic and electrical system, and a vehicle in some embodiments. The implementation of some embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0065] This disclosure provides a vehicle in some embodiments, including but not limited to electric drive vehicles, gasoline drive vehicles, or hybrid electric drive vehicles.

[0066] The following describes some embodiments of this disclosure using an electrically driven vehicle as an example.

[0067] In some embodiments, as shown in FIG1, vehicle 01 includes an electronic and electrical system 10 and a battery 20.

[0068] In some embodiments, the electronic and electrical system 10 may be deployed throughout the vehicle body 01 to control devices or modules in various areas of the vehicle 01.

[0069] For example, the electronic and electrical system 10 may include an optical communication system 100 to transmit various data within the vehicle via silicon photonics communication.

[0070] Figure 2 is an architecture diagram of an optical communication system provided in some embodiments of this disclosure. As shown in Figure 2, the optical communication system 100 includes an OLT device 110 and at least one ONU device (such as a first ONU device 120). The OLT device 110 includes a downlink optical transmitter module 111 and an uplink optical transmitter module 112.

[0071] In some embodiments of this disclosure, the OLT device acts as an uplink device and the ONU device acts as a downlink device. The transmission of signals from the OLT device to the ONU device can be referred to as downlink communication, and the transmission of signals from the ONU device to the OLT device can be referred to as uplink communication.

[0072] For example, downlink communication from the OLT device to the ONU device uses a broadcast format.

[0073] For example, the uplink communication between the ONU device and the OLT device uses time-division multiplexing.

[0074] In some embodiments, the OLT device and at least one ONU device communicate via optical fiber. For example, the OLT device 110 and the first ONU device 120 communicate via optical fiber.

[0075] In some embodiments, the OLT device 110 is used to modulate the downlink optical carrier emitted by the downlink optical transmitter module 111 to generate a downlink optical signal, and transmit the downlink optical signal to at least one ONU device through an optical fiber.

[0076] For example, when the OLT device 110 needs to send a control command to the first ONU device 120, it can carry the control command in the downlink optical carrier provided by the downlink optical transmission module 111 and send it to the first ONU device 120.

[0077] In some embodiments, the first ONU device 120 is configured to receive an uplink optical carrier transmitted by the uplink optical transmitting module 112, modulate the uplink optical carrier to generate an uplink optical signal, and transmit the uplink optical signal to the OLT device 110 through an optical fiber.

[0078] For example, when the first ONU device 120 needs to upload data information to the OLT device 110, it can carry the data information in the uplink optical carrier provided by the received uplink optical transmission module 112 and send it to the OLT device 110.

[0079] In some embodiments, at least one of the downlink optical emitting module 111 or the uplink optical emitting module 112 is in continuous emission mode.

[0080] For example, both the downlink optical transmitter module 111 and the uplink optical transmitter module 112 can continuously transmit optical carriers. When downlink communication is required, the OLT device 110 communicates based on the downlink optical carrier provided by the downlink optical transmitter module 111; when uplink communication is required, the first ONU device 120 communicates based on the uplink optical carrier provided by the uplink optical transmitter module 112.

[0081] In some embodiments, the downlink optical transmitter module 111 is configured to transmit an uplink optical carrier when the uplink optical transmitter module 112 fails.

[0082] For example, if the uplink optical transmitter module 112 in the OLT device 110 fails and cannot provide an optical carrier, the downlink optical transmitter module 111 can take over from the uplink optical transmitter module 112, transmit the uplink optical carrier, and send it to the first ONU device 120.

[0083] In some embodiments, the uplink optical transmitter module 112 is configured to transmit a downlink optical carrier when the downlink optical transmitter module 111 fails.

[0084] For example, if the downlink optical transmitter module 112 in the OLT device 110 fails and cannot provide an optical carrier, the uplink optical transmitter module 112 can take over from the downlink optical transmitter module 111, transmit the downlink optical carrier, and send it to the first ONU device 120 after being modulated into a downlink optical signal.

[0085] In the optical communication system provided in some embodiments of this disclosure, by setting up independent downlink and uplink optical transmission modules in the OLT device, optical carriers are provided for downlink communication between the OLT device and the ONU device, and optical carriers are provided for uplink communication between the ONU device and the OLT device, respectively. This makes the two signals completely independent at the physical level and do not interfere with each other, avoiding communication failures caused by signal interference. Furthermore, for the two independently set optical transmission modules, when one optical transmission module fails, it will not affect the other optical transmission module, ensuring the continuity of communication, thereby improving the safety and reliability of the vehicle-mounted optical communication system.

[0086] In some embodiments, the OLT device described above may include multiple downlink optical transmitting modules and multiple uplink optical transmitting modules, with the multiple downlink optical transmitting modules being redundant with each other and the multiple uplink optical transmitting modules being redundant with each other.

[0087] The following description uses an OLT device, which includes two downlink optical transmitter modules and two uplink optical transmitter modules, as an example to introduce the OLT device.

[0088] Referring to Figure 2, as shown in Figure 3, the OLT device 110 may include a first downlink optical transmitter module 111a and a second downlink optical transmitter module 111b, as well as a first uplink optical transmitter module 112a and a second uplink optical transmitter module 112b.

[0089] In some embodiments, the first downlink optical transmitter module 111a is configured to transmit a downlink optical carrier when the second downlink optical transmitter module 111b fails.

[0090] For example, if the second downlink optical transmitter module 111b in the OLT device 110 fails and cannot provide an optical carrier, the first downlink optical transmitter module 111a can take over from the second downlink optical transmitter module 111b, transmit the downlink optical carrier, and send it to the first ONU device 120 after being modulated into a downlink optical signal.

[0091] In some embodiments, the second downlink optical transmitter module 111b is configured to transmit a downlink optical carrier when the first downlink optical transmitter module 111a fails.

[0092] For example, if the first downlink optical transmitter module 111a in the OLT device 110 fails and cannot provide an optical carrier, the second downlink optical transmitter module 111b can take over from the first downlink optical transmitter module 111a, transmit the downlink optical carrier, and send it to the first ONU device 120 after being modulated into a downlink optical signal.

[0093] Thus, by setting at least two redundant downlink optical transmitter modules in the OLT device, when one downlink optical transmitter module fails, the other downlink optical transmitter module can immediately take over the communication task, thereby ensuring the continuity of communication, avoiding communication interruption caused by the failure of a single light source module, and further improving the security and reliability of the optical communication system.

[0094] In some embodiments, the first uplink optical transmitter module 112a is configured to transmit an uplink optical carrier when the second uplink optical transmitter module 112b fails.

[0095] For example, if the second uplink optical transmitter module 112b in the OLT device 110 fails and cannot provide an optical carrier, the first uplink optical transmitter module 112a can take over from the second uplink optical transmitter module 112b and send the transmitted uplink optical carrier to the first ONU device 120.

[0096] In some embodiments, the second uplink optical transmitter module 112b is configured to transmit an uplink optical carrier when the first uplink optical transmitter module 112a fails.

[0097] For example, if the first uplink optical transmitter module 112a in the OLT device 110 fails and cannot provide an optical carrier, the second uplink optical transmitter module 112b can take over from the first uplink optical transmitter module 112a and send the transmitted uplink optical carrier to the first ONU device 120.

[0098] Thus, by setting at least two redundant uplink optical transmitter modules in the OLT device, when one uplink optical transmitter module fails, the other uplink optical transmitter module can immediately take over the communication task, thereby ensuring the continuity of communication, avoiding communication interruption caused by the failure of a single light source module, and further improving the security and reliability of the optical communication system.

[0099] The following describes some embodiments of this disclosure using an example of at least one ONU device in an optical communication system, including two first ONU devices.

[0100] Referring to Figure 2, as shown in Figure 4, the optical communication system 100 may also include a first ONU device 130, a downlink splitter module 140, an uplink splitter module 150, and a combining module 160.

[0101] The input of the downlink splitter module 140 is connected to the OLT device 110, and the output of the downlink splitter module 140 is connected to the first ONU devices 120 and 130. The input of the uplink splitter module 150 is connected to the OLT device 110, and the output of the uplink splitter module 150 is connected to the first ONU devices 120 and 130. The input of the combining module 160 is connected to the first ONU devices 120 and 130, and the output of the combining module 160 is connected to the OLT device 110.

[0102] In some embodiments, the downlink splitter module 140 is configured to split the downlink optical signal output by the OLT device 110 into multiple downlink optical signals and transmit them to at least one ONU device respectively.

[0103] For example, the downlink splitter module 140 can split the received downlink optical signal into two downlink optical signals at a ratio of 1:2 and send them to the first ONU device 120 and the first ONU device 130 respectively.

[0104] In some examples, the downlink splitter module 140 may also be referred to as a splitter.

[0105] In this way, by setting up a splitter to connect an OLT device and at least one ONU device, the optical signal sent by the OLT device can be distributed to each connected ONU device, thereby improving the communication efficiency of the optical communication system.

[0106] In some embodiments, the uplink splitter module 150 is configured to split the uplink optical carrier output by the OLT device 110 into multiple uplink optical carriers and transmit them to at least one ONU device respectively.

[0107] For example, the uplink splitter module 150 can split the received uplink optical carrier into two uplink optical carriers at a ratio of 1:2 and send them to the first ONU device 120 and the first ONU device 130 respectively.

[0108] In some examples, the uplink beam splitter module 150 may also be referred to as a beam splitter.

[0109] In this way, by setting up a splitter to connect one OLT device and at least one ONU device, multiple ONU devices can communicate using the optical signal sent by the same OLT device, which facilitates centralized management of the light source in the optical communication system.

[0110] In some embodiments, the optical combining module 160 is configured to combine uplink optical signals sent by at least one ONU device and send them to the OLT device 110.

[0111] For example, the optical combining module 160 can combine two uplink optical signals sent by the first ONU device 120 and the first ONU device 130 into one uplink optical signal, and send the combined uplink optical signal to the OLT device 110.

[0112] In some examples, the light combining module 160 may also be referred to as a coupler.

[0113] In this way, by setting up a coupler to connect an OLT device and at least one ONU device, multiple ONU devices can simultaneously send data information to the OLT device, which improves the uplink communication capacity. Furthermore, it can combine the optical signals sent by each ONU device into a single optical signal and send it to the OLT device, reducing the fiber optic lines and equipment required for uplink communication.

[0114] The internal structure of the OLT device in the optical communication system will be further explained below.

[0115] In some embodiments, as shown in FIG4, the OLT device 110 may further include a Medium Access Control (MAC) chip 113, a silicon-based optical modulator (such as an optical driver 114), a photoelectric conversion unit (such as an avalanche photodiode (APD) 115), and a trans-impedance amplifier (TIA) 116.

[0116] In some embodiments, the MAC chip 113 is configured to control the silicon-based optical modulator to modulate the downlink optical carrier transmitted by the downlink optical transmitter module 111 into a downlink optical signal.

[0117] For example, when the OLT device 110 needs to send control commands, the MAC chip 113 can send a high-speed modulated electrical signal containing the control commands to be sent, so as to control the optical driver 114 to modulate the downlink optical carrier provided by the downlink optical transmitter module 111 to generate a downlink optical signal, which contains the control commands to be sent.

[0118] In some embodiments, the photoelectric conversion unit in the OLT device 110 can be configured to receive uplink optical signals, convert the uplink optical signals into electrical signals, and feed them back to the MAC chip 113.

[0119] For example, APD 115 can convert the received uplink optical signal into an electrical signal and transmit it to TIA 116. TIA 116 can amplify the received electrical signal and send the amplified electrical signal to MAC chip 113. MAC chip 113 can parse the received electrical signal to obtain the data information carried in it.

[0120] The internal structure of the ONU device in the optical communication system is described below.

[0121] In some embodiments, as shown in FIG4, the first ONU device 120 includes a control chip (such as a MAC chip 121), a silicon-based optical modulator (such as a modulator 122), a photoelectric conversion unit (such as a photodiode (PD) 123), a TIA 124, an optical driver 125, and an optical switch module 126. The optical switch module 126 is connected to the output terminal of the silicon-based optical modulator (such as modulator 121).

[0122] In some embodiments, the MAC chip 121 can be configured to control a silicon-based optical modulator to modulate the uplink optical carrier input to the first ONU device into an uplink optical signal carrying modulation information.

[0123] For example, after receiving the uplink optical carrier, the first ONU device 120 can control the MAC chip 121 to send a high-speed modulated electrical signal carrying the data information to be sent, so as to control the modulator 122 to modulate the uplink optical carrier, generate an uplink optical signal containing data information, and send the uplink optical signal to the optical switch module 126.

[0124] In some embodiments, PD 123 is configured to receive downlink optical signals, convert the downlink optical signals into electrical signals, and feed them back to MAC chip 121.

[0125] For example, PD 123 can perform photoelectric conversion on the received downlink optical signal to obtain an electrical signal containing control commands, and send the electrical signal to TIA 124. TIA 124 can amplify the received electrical signal and send the amplified electrical signal to MAC chip 121. MAC chip 121 parses the received electrical signal to obtain the control commands contained therein.

[0126] In some embodiments, as shown in FIG4, the first ONU device 130 includes a control chip (such as a MAC chip 131), a silicon-based optical modulator (such as a modulator 132), a photoelectric conversion unit (such as a PD 133), a TIA 134, an optical driver 135, and an optical switch module 136. The optical switch module 136 is connected to the output terminal of the silicon-based optical modulator (such as modulator 133).

[0127] In some embodiments, the MAC chip 131 can be configured to control a silicon-based optical modulator to modulate the uplink optical carrier input to the first ONU device into an uplink optical signal carrying modulation information.

[0128] For example, after receiving the uplink optical carrier, the first ONU device 130 can control the MAC chip 131 to send a high-speed modulated electrical signal carrying the data information to be sent, so as to control the modulator 132 to modulate the uplink optical carrier, generate an uplink optical signal containing data information, and send the uplink optical signal to the optical switch module 136.

[0129] In some embodiments, PD 133 is configured to receive downlink optical signals, convert the downlink optical signals into electrical signals, and feed them back to MAC chip 131.

[0130] For example, PD 133 can perform photoelectric conversion on the received downlink optical signal to obtain an electrical signal containing control commands, and send the electrical signal to TIA 134. TIA 134 can amplify the received electrical signal and send the amplified electrical signal to MAC chip 131. MAC chip 131 parses the received electrical signal to obtain the control commands carried therein.

[0131] As described in Figure 2 above, for example, the uplink communication between the ONU device and the OLT device uses time-division multiplexing.

[0132] In one embodiment, the first ONU device 120 is configured to: modulate an uplink optical carrier to generate an uplink optical signal carrying data information within a transmission window allocated to the first ONU device 120; or, modulate an uplink optical carrier to generate an uplink optical signal carrying setting information within a transmission window not allocated to the first ONU device 120.

[0133] The transmission window refers to the working time slot of the first ONU device 120.

[0134] In some embodiments, the MAC chip can control the silicon-based optical modulator to modulate the uplink optical carrier input to the first ONU device into an uplink optical signal carrying data information during the working time slot corresponding to the first ONU device 120; and control the silicon-based optical modulator to modulate the uplink optical carrier input to the first ONU device into an uplink optical signal carrying set information during the non-working time slot corresponding to the first ONU device 120.

[0135] A non-working time slot refers to a time slot in which the first ONU device does not need to transmit data. The aforementioned uplink optical signal carrying the setting information can be a signal that is always 1 or always 0.

[0136] For example, as shown in Figure 5, taking the first ONU device including ONU1, ONU2, and ONU3 as an example, in the uplink physical frame between the ONU device and the OLT device, if ONU1 needs to transmit data in the first frame, the MAC chip in ONU1 can modulate the uplink optical carrier into an uplink optical signal carrying data information in the first frame of the uplink physical frame, and modulate the uplink optical carrier to a constant 0 or a constant 1 in the second and third frames.

[0137] Similarly, as shown in Figure 5, if ONU2 needs to transmit data in the second frame, the MAC chip in ONU2 can modulate the uplink optical carrier into an uplink optical signal carrying data information in the second frame of the uplink physical frame, while in the first and third frames, the uplink optical carrier is modulated to a constant 0 or a constant 1.

[0138] As shown in Figure 5, if ONU3 needs to transmit data in the third frame, the MAC chip in ONU3 can modulate the uplink optical carrier into an uplink optical signal carrying data information in the third frame of the uplink physical frame, while in the first and second frames, the uplink optical carrier is modulated to constant 0 or constant 1.

[0139] In this way, the MAC chip controls the ONU device to not send signals during non-working time slots, thus avoiding signal interference between multiple ONU devices.

[0140] In another implementation, the uplink communication from the first ONU device 120 to the OLT device 110 can be controlled by the optical switch module 126.

[0141] In some embodiments, the optical switch module 126 is configured to turn on within a transmission window allocated to the first ONU device 120, so that the first ONU device 120 outputs an uplink optical signal; or, to turn off within a transmission window not allocated to the first ONU device 120, so that the first ONU device 120 stops outputting an uplink optical signal.

[0142] For example, the MAC chip 121 can control the optical switch module 126 to turn on or off.

[0143] In some embodiments, the MAC chip 121 is configured to control the optical switch module to turn on within a transmission window allocated to the first ONU device 120; or, to control the optical switch module to turn off within a transmission window not allocated to the first ONU device 120.

[0144] For example, the optical switch module 126 may include a variable optical attenuator (VOA).

[0145] In some embodiments, VOA is configured to adjust the power of the uplink optical signal to be greater than or equal to a power threshold within a transmission window allocated to the first ONU device 120; or, to adjust the power of the uplink optical signal to be less than a power threshold within a transmission window not allocated to an ONU device.

[0146] The power threshold can be set manually and can be flexibly adjusted according to the actual scenario.

[0147] For example, as shown in Figure 6, taking the aforementioned first ONU device including ONU1, ONU2, and ONU3 as an example, in the uplink signal between the ONU device and the OLT device, if ONU1 needs to transmit data in the first time slot, the VOA in ONU1 can be turned off in the first time slot to avoid attenuating the uplink optical signal generated by the modulator in the first time slot; while it is turned on in the second and third time slots to attenuate the uplink optical signal in the second and third time slots until the power of the optical signal is attenuated to less than the power threshold.

[0148] Similarly, as shown in Figure 6, if ONU2 needs to transmit data in the second time slot, the VOA in ONU2 can be turned off in the second time slot to avoid attenuating the uplink optical signal generated by the modulator in the second time slot; while it can be turned on in the first and third time slots to attenuate the uplink optical signal in the first and third time slots until the power of the optical signal is attenuated to less than the power threshold.

[0149] As shown in Figure 6, if ONU3 needs to transmit data in the third time slot, the VOA in ONU3 can be turned off in the third time slot to avoid attenuating the uplink optical signal generated by the modulator in the third time slot; while it can be turned on in the first and second time slots to attenuate the uplink optical signal in the first and second time slots until the power of the optical signal is attenuated to less than the power threshold.

[0150] In this way, by setting up an optical switch module, the timing of uplink signal transmission by the ONU device can be flexibly controlled, ensuring that there is no signal interference between different ONU devices.

[0151] In some examples, as shown in Figure 3, the OLT device 110 can be integrated into the vehicle's central controller (such as the central computing platform 11).

[0152] In some examples, the OLT device 110 can also be connected to the vehicle’s central controller (such as the central computing platform 11).

[0153] In some examples, the ONU device can be connected to the vehicle's electronics via fiber optic communication or electrical communication.

[0154] In some examples, the ONU device can be integrated into the vehicle's electronics.

[0155] Here, the vehicle's electronics include at least one of sensors or actuators.

[0156] In some embodiments, the uplink optical signal sent from the ONU device to the OLT device carries data information from electronic components to be fed back to the central controller.

[0157] In some embodiments, the downlink optical signal sent from the OLT device to the ONU device carries instructions issued by the central controller to the electronic devices.

[0158] In some embodiments, the electronic and electrical system 10 provided in some embodiments of this disclosure may further include a central controller and vehicle electronics, the electronics including at least one of sensors or actuators.

[0159] In some embodiments, the OLT device is integrated into the central controller, or the OLT device is connected to the vehicle's central controller.

[0160] In some embodiments, the ONU device can be connected to electronic devices via optical fiber communication or electrical communication, or the ONU device can be integrated into electronic devices.

[0161] In some embodiments, the optical communication system provided in some embodiments of this disclosure may include multiple optical communication subnetworks, each optical communication subnetwork including an OLT device and at least one ONU device, and each optical communication subnetwork operates independently.

[0162] The following uses an optical communication system comprising two optical communication sub-networks (a first optical communication sub-network and a second optical communication sub-network) as an example to further illustrate the optical communication system provided in some embodiments of this disclosure.

[0163] Referring to Figure 3, as shown in Figure 7, the optical communication system 100 may further include: a first optical communication subnetwork 101 and a second optical communication subnetwork 102. The first optical communication subnetwork 101 is connected to the second optical communication subnetwork 102.

[0164] The first optical communication subnetwork 101 includes a first OLT device 110 and at least one first ONU device (such as first ONU device 120, first ONU device 130).

[0165] The second optical communication subnetwork 102 includes a second OLT device 210 and at least one second ONU device (such as second ONU device 220, second ONU device 230).

[0166] In some embodiments, the first OLT device is configured to send at least one of a downlink optical signal or an uplink optical carrier to at least one second ONU device in the event of a failure of the second OLT device.

[0167] In some embodiments, the second OLT device is configured to send at least one of a downlink optical signal or an uplink optical carrier to at least one first ONU device in the event of a failure of the first OLT device.

[0168] As shown in Figure 7, the second OLT device 210 includes a downlink optical transmitter module 211 and an uplink optical transmitter module 212. The downlink optical transmitter module 211 is configured to transmit downlink optical carriers, and the uplink optical transmitter module 212 is configured to transmit uplink optical carriers.

[0169] In some embodiments, the first OLT device 110 is configured to send a downlink optical signal to at least one second ONU device in the event of a failure of the downlink optical transmitter module 211 of the second OLT device 210.

[0170] For example, when the second OLT device 210 needs to send control commands to the second ONU device 220 and the second ONU device 230, if the downlink optical transmitter module 211 of the second ONU device 220 fails and cannot provide a light source, the first OLT device 110 can take over from the second OLT device 210, transmit the downlink optical carrier, and carry the control commands with the downlink optical signal obtained on the downlink optical carrier, and send them to the second ONU device 220 and the second ONU device 230.

[0171] In some embodiments, the first OLT device 110 is configured to send an uplink optical carrier to at least one second ONU device in the event of a failure of the uplink optical transmitter module 212 of the second OLT device 210.

[0172] For example, when the second ONU device 220 and the second ONU device 230 need to send data information to the second OLT device 210, if the uplink optical transmission module 212 of the second OLT device 210 fails and cannot provide a light source, the first OLT device 110 can take over from the second OLT device 210 and transmit the uplink optical carrier. The second ONU device 220 and the second ONU device 230 can carry data information in the received uplink optical carrier and send it to the second OLT device 210.

[0173] In some embodiments, at least one of the downlink optical emitting module 211 or the uplink optical emitting module 212 is in continuous emission mode.

[0174] For example, both the downlink optical transmitter module 211 and the uplink optical transmitter module 212 can continuously transmit optical carriers. When downlink communication is required, the second OLT device 210 communicates based on the downlink optical carrier provided by the downlink optical transmitter module 211; when uplink communication is required, at least one of the second ONU device 220 or the second ONU device 230 communicates based on the uplink optical carrier provided by the uplink optical transmitter module 212.

[0175] As shown in Figure 7, the first OLT device 110 includes a downlink optical transmitter module 111 and an uplink optical transmitter module 112. The downlink optical transmitter module 111 is configured to transmit downlink optical carriers, and the uplink optical transmitter module 112 is configured to transmit uplink optical carriers.

[0176] In some embodiments, the second OLT device 210 is configured to send a downlink optical signal to at least one first ONU device in the event of a failure of the downlink optical transmitter module 111 of the first OLT device 110.

[0177] For example, when the first OLT device 110 needs to send control commands to the first ONU device 120 and the first ONU device 130, if the downlink optical transmitter module 111 of the first OLT device 110 fails and cannot provide a light source, the second OLT device 210 can take over from the first OLT device 110, transmit downlink optical carriers, and carry the control commands with the downlink optical signals obtained on the downlink optical carriers, and send them to the first ONU device 120 and the first ONU device 130.

[0178] In some embodiments, the second OLT device 210 is configured to send an uplink optical carrier to at least one first ONU device in the event of a failure of the uplink optical transmitter module 112 of the first OLT device 110.

[0179] For example, when the first ONU device 120 and the first ONU device 130 need to send data information to the first OLT device 110, if the uplink optical transmission module 112 of the first OLT device 110 fails and cannot provide a light source, the second OLT device 210 can take over from the first OLT device 110 and transmit the uplink optical carrier. The first ONU device 120 and the first ONU device 130 can carry data information in the received uplink optical carrier and send it to the first OLT device 110.

[0180] In this way, by setting up multiple OLT devices in the optical communication system to correspond to the uplink and downlink communication of different ONU devices, and adopting a distributed deployment approach, the management is divided and the interference between various controllers is avoided, thereby further improving the security and reliability of the vehicle-mounted optical communication system.

[0181] As shown in Figure 7, the first optical communication sub-network 101 also includes a first optical combining module 160. The input end of the first optical combining module 160 is connected to the first ONU device 120 and the first ONU device 130, and the output end of the first optical combining module 160 is connected to the OLT device 110.

[0182] In some embodiments, the first optical combining module 160 is configured to combine uplink optical signals sent by at least one ONU device and send them to the first OLT device 110.

[0183] For example, the first optical combining module 160 can combine two uplink optical signals sent by the first ONU device 120 and the first ONU device 130 into one uplink optical signal, and send the combined uplink optical signal to the first OLT device 110.

[0184] In some examples, the first light combining module 160 may also be referred to as a coupler.

[0185] As shown in Figure 7, the second optical communication sub-network 102 also includes a second optical combining module 260. The input end of the second optical combining module 260 is connected to the second ONU device 220 and the second ONU device 230, and the output end of the second optical combining module 260 is connected to the second OLT device 210.

[0186] In some embodiments, the second optical combining module 260 is configured to combine uplink optical signals sent by at least one ONU device and send them to the second OLT device 210.

[0187] For example, the second optical combining module 160 can combine two uplink optical signals received from the second ONU device 220 and the second ONU device 230 into one uplink optical signal, and send the combined uplink optical signal to the second OLT device 210.

[0188] In some examples, the second light combining module 260 may also be referred to as a coupler.

[0189] In this way, by setting up a coupler to connect an OLT device and at least one ONU device, multiple ONU devices can simultaneously send data information to the OLT device, improving the uplink communication capacity. At the same time, it can combine the optical signals sent by each ONU device into a single optical signal and send it to the OLT device, reducing the fiber optic lines and equipment required for uplink communication.

[0190] In some embodiments, as shown in FIG7, the second OLT device 210 may further include a MAC chip 213, a silicon-based optical modulator (such as an optical driver 214), a photoelectric conversion unit (such as an APD 215), and a TIA 216. The second ONU device 220 includes a MAC chip 221, a silicon-based optical modulator (such as a modulator 222), a photoelectric conversion unit (such as a PD 223), a TIA 224, an optical driver 225, and an optical switch module 226, the optical switch module 226 being connected to the output terminal of the silicon-based optical modulator (such as modulator 222). The second ONU device 230 includes a MAC chip 231, a silicon-based optical modulator (such as a modulator 232), a photoelectric conversion unit (such as a PD 233), a TIA 234, an optical driver 235, and an optical switch module 236, the optical switch module 236 being connected to the output terminal of the silicon-based optical modulator (such as modulator 232).

[0191] For a detailed description of the internal structure of the second OLT device 210, the second ONU device 220, and the second ONU device 230, please refer to the relevant description of the internal structure of the first OLT device 110, the first ONU device 120, and the first ONU device 130 in Figure 4 above. To avoid repetition, it will not be repeated here.

[0192] In some embodiments, the first optical communication subnetwork 101 and the second optical communication subnetwork 102 are connected via backup optical fibers. The backup optical fibers include one or more of the following: a first backup optical fiber, a second backup optical fiber, a third backup optical fiber, and a fourth backup optical fiber.

[0193] In some embodiments, the first backup fiber is configured to connect the first OLT device 110 to the downlink signal transmission path of the second optical communication subnetwork 102. The third backup fiber is configured to connect the second OLT device 210 to the downlink signal transmission path of the first optical communication subnetwork 101.

[0194] Referring to Figure 7, as shown in Figure 8, the second optical communication sub-network 102 may further include a second downlink splitter module 240. The input of the second downlink splitter module 240 is connected to the second OLT device 210, and the output of the second downlink splitter module 240 is connected to at least one second ONU device (such as the second ONU device 220 and the second ONU device 230).

[0195] In some embodiments, the second downlink splitter module 240 is configured to split the downlink optical signal input to the second downlink splitter module 240 into multiple parts and transmit them to at least one second ONU device respectively.

[0196] For example, the second downlink splitter module 240 can split the received downlink optical signal into two downlink optical signals at a ratio of 1:2 and send them to the second ONU device 220 and the second ONU device 230 respectively.

[0197] For example, the first backup optical fiber is connected to the input of the first OLT device 110 and the second downlink splitter module 240.

[0198] In some examples, the second downlink splitter module 240 may also be referred to as a splitter.

[0199] As shown in Figure 8, the first optical communication sub-network 101 may further include a first downlink splitter module 140. The input of the first downlink splitter module 140 is connected to the first OLT device 110, and the output of the first downlink splitter module 140 is connected to at least one first ONU device (such as the first ONU device 120 and the first ONU device 130).

[0200] In some embodiments, the first downlink optical splitter 140 is configured to split the downlink optical signal input to the first downlink optical splitter 140 into multiple parts and transmit them to at least one first ONU device respectively.

[0201] For example, the first downlink splitter module 140 can split the received downlink optical signal into two downlink optical signals at a ratio of 1:2 and send them to the first ONU device 120 and the first ONU device 130 respectively.

[0202] For example, the first backup optical fiber connects the output of the first downlink splitter module 140 and the input of the second downlink splitter module 240.

[0203] In some embodiments, the third backup fiber connects the second OLT device 210 and the input of the first downlink splitter module 140.

[0204] For example, the third backup optical fiber connects the output of the second downlink splitter module 240 and the input of the first downlink splitter module 140.

[0205] In some examples, the first downlink splitter module 140 may also be referred to as a splitter.

[0206] In this way, by setting up a splitter to connect an OLT device and at least one ONU device, the optical signal sent by the OLT device can be distributed to each connected ONU device, thereby improving the communication efficiency of the optical communication system.

[0207] In some embodiments, the second backup fiber is configured to connect the first OLT device 110 to the uplink optical carrier transmission path of the second optical communication subnetwork 102. The fourth backup fiber is configured to connect the second OLT device 210 to the uplink optical carrier transmission path of the first optical communication subnetwork 101.

[0208] As shown in Figure 8, the second optical communication sub-network 102 may further include a second uplink splitter module 250. The input of the second uplink splitter module 250 is connected to the second OLT device 210, and the output of the second uplink splitter module 250 is connected to at least one second ONU device (such as the second ONU device 220 and the second ONU device 230).

[0209] In some embodiments, the second uplink splitter module 250 is configured to split the uplink optical carrier input to the second uplink splitter module 250 into multiple parts and transmit them to at least one second ONU device respectively.

[0210] For example, the second uplink splitter module 250 can split the received uplink optical carrier into two uplink optical carriers at a ratio of 1:2 and send them to the second ONU device 220 and the second ONU device 230 respectively.

[0211] For example, the second backup fiber is connected to the input of the first OLT device 110 and the second uplink splitter module 250.

[0212] In some examples, the second uplink splitter module 250 may also be referred to as a splitter.

[0213] As shown in Figure 8, the first optical communication sub-network 101 also includes a first uplink splitter module 150. The input end of the first uplink splitter module 150 is connected to the first OLT device 110, and the output end of the first uplink splitter module 150 is connected to at least one first ONU device (such as the first ONU device 120 and the first ONU device 130).

[0214] In some embodiments, the first uplink optical splitter 150 is configured to split the uplink optical carrier input to the first uplink optical splitter 150 into multiple parts and transmit them to at least one first ONU device respectively.

[0215] For example, the first uplink splitter module 150 can split the received uplink optical carrier into two uplink optical carriers at a ratio of 1:2 and send them to the first ONU device 120 and the first ONU device 130 respectively.

[0216] For example, the second backup optical fiber is connected to the output of the first uplink splitter module 150 and the input of the second uplink splitter module 250.

[0217] In some embodiments, the fourth backup fiber connects the second OLT device 210 and the input of the first uplink splitter module 150.

[0218] For example, the fourth backup fiber connects the output of the second uplink splitter module 250 and the input of the first uplink splitter module 150.

[0219] In some examples, the first uplink splitter module 150 may also be referred to as a splitter.

[0220] In this way, by setting up a splitter to connect one OLT device and at least one ONU device, multiple ONU devices can communicate using the optical signal sent by the same OLT device, which facilitates centralized management of the light source in the optical communication system.

[0221] In some embodiments, the optical communication system provided in some embodiments of this disclosure can divide multiple functions of a vehicle into multiple functional domains, with different communication devices configured for different functional domains.

[0222] In some embodiments, a first OLT device is configured to provide an optical carrier for communication in a first functional domain, and at least one first ONU device is configured to be responsible for data communication in the first functional domain; a second OLT device is configured to provide an optical carrier for communication in a second functional domain, and at least one second ONU device is configured to be responsible for data communication in the second functional domain.

[0223] The first functional domain can be the multimedia domain, and the second functional domain can be the intelligent driving domain.

[0224] In this way, by configuring different functional domains in the vehicle to use different communication devices for data communication, the data communication between the various functional domains does not affect each other, thus improving the reliability of data communication.

[0225] In some embodiments, the OLT device of each of the multiple optical communication subnetworks is integrated in a central controller.

[0226] As shown in Figure 9, at least one of the first OLT device 110 or the second OLT device 210 is located in the central control platform 11.

[0227] In some embodiments, each of the plurality of optical communication subnetworks is configured to be responsible for communication between the vehicle’s central controller and electronics in a functional domain or body area.

[0228] In some embodiments, at least one ONU device in each of the plurality of optical communication subnetworks is connected by optical fiber communication or electrical communication with electronic devices in a functional domain or vehicle body area.

[0229] In some embodiments, when the second OLT device provides an uplink optical carrier to at least one first ONU device, the controllers of some or all of the electronic devices connected to the at least one first ONU device are in a low-power operating state.

[0230] When the first OLT device provides an uplink optical carrier to at least one second ONU device, the controllers of some or all of the electronic devices connected to the at least one second ONU device are in a low-power operating state.

[0231] In some embodiments, the electronic devices may include multiple in-vehicle devices. For example, a functional domain may include an electronic control unit (ECU), sensors, actuators, etc.

[0232] In some embodiments, multiple ECUs within an ONU device can operate independently, and a rogue ONU device monitoring and isolation mechanism can also be used to ensure the normal operation of the network.

[0233] In some embodiments, the electronic and electrical system 10 provided in some embodiments of this disclosure may further include a central controller and vehicle electronics, the electronics including at least one of sensors or actuators.

[0234] Referring to Figure 8, as shown in Figure 9, the first OLT device 110 and the second OLT device 210 can be integrated into the vehicle's central controller (such as the central computing platform 11).

[0235] In some embodiments, the first OLT device 110 and the second OLT device 210 may be connected to the vehicle’s central controller.

[0236] In some embodiments, the ONU device can be connected to electronic devices via optical fiber communication or electrical communication, or the ONU device can be integrated into electronic devices.

[0237] In this way, by deploying in an integrated manner, the number of wiring harnesses connecting various devices can be reduced, which not only reduces wiring harness costs but also improves data transmission rates.

[0238] In addition to deploying multiple uplink optical transmitting modules or multiple downlink optical transmitting modules within the OLT device, the optical communication system provided in some embodiments of this disclosure can also deploy additional optical transmitting modules to replace any OLT device in providing optical carriers.

[0239] As shown in Figure 9, the optical communication system 100 also includes a backup optical transmitter module 310, which is connected to the first OLT device 110 and the second OLT device 210 respectively.

[0240] In some embodiments, the backup optical transmitter module 310 is configured to provide an optical carrier to the first OLT device 110 in the event of a failure of at least one of the downlink optical transmitter module 111 or the uplink optical transmitter module 112 of the first OLT device 110.

[0241] The optical carrier can be either a downlink optical carrier or an uplink optical carrier. In the event of a failure of the downlink optical transmitter module 111, the optical carrier is a downlink optical carrier; in the event of a failure of the uplink optical transmitter module 112, the optical carrier is an uplink optical carrier.

[0242] In some examples, if the downlink optical transmitter module 111 fails and cannot provide an optical carrier when the first OLT device 110 needs to perform downlink communication, the backup optical transmitter module 310 can take over from the downlink optical transmitter module 111 to provide downlink optical carriers for downlink communication between the first OLT device 110 and the first ONU device 120, and between the first OLT device 110 and the first ONU device 130.

[0243] In some examples, if the first OLT device 110 needs to perform downlink communication and the first ONU device 120 and the first ONU device 130 need to perform uplink communication, and both the downlink optical transmitter module 111 and the uplink optical transmitter module 112 fail and cannot provide optical carriers, then the backup optical transmitter module 310 can simultaneously take over from the downlink optical transmitter module 111 and the uplink optical transmitter module 112 to provide downlink optical carriers for downlink communication between the first OLT device 110 and the first ONU device 120, and to provide uplink optical carriers for uplink communication between the first OLT device 110 and the first ONU device 130.

[0244] In some embodiments, the backup optical transmitter module 310 is configured to provide an optical carrier to the second OLT device 210 in the event of a failure of at least one of the downlink optical transmitter module 211 or the uplink optical transmitter module 212 of the second OLT device 210.

[0245] The optical carrier can be either a downlink optical carrier or an uplink optical carrier. In the event of a failure in the downlink optical transmitter module 211, the optical carrier is a downlink optical carrier; in the event of a failure in the uplink optical transmitter module 212, the optical carrier is an uplink optical carrier.

[0246] In some examples, when the second ONU device 220 and the second ONU device 230 need to perform uplink communication, if the uplink optical transmitter module 212 fails and cannot provide an optical carrier, the backup optical transmitter module 310 can take over from the uplink optical transmitter module 212 to provide uplink optical carriers for uplink communication between the second OLT device 210 and the second ONU device 220, and between the second OLT device 210 and the second ONU device 230.

[0247] In some examples, if the second OLT device 210 needs to perform downlink communication and the second ONU device 220 and the second ONU device 230 need to perform uplink communication, and both the downlink optical transmitter module 211 and the uplink optical transmitter module 212 fail and cannot provide optical carriers, then the backup optical transmitter module 310 can simultaneously take over from the downlink optical transmitter module 211 and the uplink optical transmitter module 212 to provide downlink optical carriers for downlink communication between the second OLT device 210 and the second ONU device 220, and for uplink communication between the second OLT device 210 and the second ONU device 230.

[0248] Thus, by setting up an additional backup optical transmitter module, the system can take over providing the optical carrier in the event that any OLT device fails and cannot provide the optical carrier, ensuring the continuity of communication and further improving the security and reliability of the optical communication system.

[0249] In the several embodiments provided in this disclosure, it should be understood that the disclosed systems and vehicles can be implemented in other ways. For example, the device embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0250] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0251] In addition, the functional units in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0252] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An optical communication system (100), comprising: An optical line terminal (OLT) device (110) and at least one optical network unit (ONU) device, wherein the OLT device and the at least one ONU device communicate via optical fiber; The OLT device (110) includes at least one downlink optical transmitter module (111) and at least one uplink optical transmitter module (112); The OLT device (110) is configured to modulate the downlink optical carrier emitted by the downlink optical transmitter module (111) to generate a downlink optical signal, and transmit the downlink optical signal to the at least one ONU device through the optical fiber; The first ONU device (130) in the at least one ONU device is configured to receive the uplink optical carrier transmitted by the uplink optical transmitting module (112), modulate the uplink optical carrier to generate an uplink optical signal, and transmit the uplink optical signal to the OLT device (110) through the optical fiber.

2. The optical communication system (100) of claim 1, wherein, The at least one downlink optical transmitting module (111) includes a plurality of downlink optical transmitting modules (111), the plurality of downlink optical transmitting modules (111) including at least a first downlink optical transmitting module (111a) and a second downlink optical transmitting module (111b); the plurality of downlink optical transmitting modules (111) satisfies at least one of the following: The first downlink optical transmitter module (111a) is configured to transmit the downlink optical carrier in the event of a failure of the second downlink optical transmitter module (111b); or The second downlink optical transmitter module (111b) is configured to transmit the downlink optical carrier when the first downlink optical transmitter module (111a) fails.

3. The optical communication system (100) of claim 1 or 2, wherein The at least one uplink optical transmitting module (112) includes a plurality of uplink optical transmitting modules (112), the plurality of uplink optical transmitting modules (112) including at least a first uplink optical transmitting module (112a) and a second uplink optical transmitting module (112b); the plurality of uplink optical transmitting modules (112) satisfies at least one of the following: The first uplink optical transmitter module (112a) is configured to transmit the uplink optical carrier in the event of a failure of the second uplink optical transmitter module (112b); or The second uplink optical transmitter module (112b) is configured to transmit the uplink optical carrier when the first uplink optical transmitter module (112a) fails.

4. The optical communication system (100) according to any one of claims 1 to 3, wherein The uplink optical transmitting module (112) is also configured to perform at least one of the following: Transmit the downlink optical carrier when the downlink optical transmitting module (111) fails; or The uplink optical carrier is transmitted when the uplink optical transmitting module (112) fails.

5. The optical communication system (100) according to any one of claims 1 to 4, wherein, The ONU device includes an optical switch module (126); the optical switch module (126) is configured to: Enabled within the transmission window allocated to the ONU device, so that the ONU device outputs the uplink optical signal; or Close within the transmission window not allocated to the ONU device, so that the ONU device stops outputting the uplink optical signal.

6. The optical communication system (100) of claim 5, wherein The optical switch module (126) includes a variable optical attenuator, which is configured to: Within the transmission window allocated to the ONU device, adjust the power of the uplink optical signal to be greater than or equal to a power threshold; or Within the transmission window not allocated to the ONU device, adjust the power of the uplink optical signal to be less than the power threshold.

7. The optical communication system (100) of claim 5, wherein, The ONU device also includes a control chip, which is configured to: Control the optical switch module (126) to turn on within the transmission window allocated to the ONU device; or The optical switch module (126) is controlled to shut down within the transmission window not assigned to the ONU device.

8. The optical communication system (100) according to any one of claims 1 to 7, wherein, The ONU device is configured as follows: Within the transmission window allocated to the ONU device, the uplink optical carrier is modulated to generate an uplink optical signal carrying data information; or The uplink optical carrier is modulated within the transmission window not allocated to the ONU device to generate an uplink optical signal carrying setting information.

9. The optical communication system (100) according to any one of claims 1 to 8, further comprising: A downlink optical splitter (140) is provided, the input of which is connected to the OLT device (110), and the output of which is connected to the at least one ONU device. The downlink optical splitter (140) is configured to split the downlink optical signal output by the OLT device (110) into multiple parts and transmit them to the at least one ONU device respectively.

10. The optical communication system (100) according to any one of claims 1 to 9, further comprising: An uplink optical splitter module (150) is provided, the input of which is connected to the OLT device (110), and the output of which is connected to the at least one ONU device. The uplink optical splitter module (150) is configured to split the uplink optical carrier output by the OLT device (110) into multiple parts and transmit them to the at least one ONU device respectively. as well as A light combining module (160) is provided, wherein the input end of the light combining module (160) is connected to the at least one ONU device, and the output end of the light combining module (160) is connected to the OLT device (110); the light combining module (160) is configured to combine and transmit the uplink optical signals sent by the at least one ONU device to the OLT device (110).

11. The optical communication system (100) according to any one of claims 1 to 10, wherein, The OLT device (110) is integrated into the central controller of the vehicle (01), or the OLT device (110) is connected to the central controller of the vehicle (01).

12. The optical communication system (100) according to any one of claims 1 to 11, wherein, The ONU device is connected to the electronic devices in the vehicle (01) via optical fiber communication or electrical communication, or the ONU device is integrated into the electronic devices in the vehicle (01), and the electronic devices in the vehicle (01) include at least one of sensors or actuators.

13. An electronic and electrical system (10) for a vehicle, comprising an optical communication system (100) according to any one of claims 1 to 12, the electronic and electrical system (10) further comprising a central controller and electronic devices of the vehicle, the electronic devices comprising at least one of sensors or actuators; The OLT device (110) is integrated into the central controller, or the OLT device (110) is connected to the central controller of the vehicle; The ONU device is connected to the electronic device via optical fiber communication or electrical communication, or the ONU device is integrated into the electronic device.

14. An optical communication system (100) comprising: Multiple optical communication subnetworks, the multiple optical communication subnetworks including at least a first optical communication subnetwork (101) and a second optical communication subnetwork (102) connected to the first optical communication subnetwork (101); the first optical communication subnetwork (101) includes a first OLT device (110) and at least one first ONU device (130); the second optical communication subnetwork (102) includes a second OLT device (210) and at least one second ONU device (230); The first OLT device (110) is configured to send at least one of a downlink optical signal or an uplink optical carrier to the at least one second ONU device (230) in the event of a failure of the second OLT device (210); The second OLT device (210) is configured to send at least one of the downlink optical signal or the uplink optical carrier to the at least one first ONU device (130) in the event of a failure of the first OLT device (110).

15. The optical communication system (100) of claim 14, wherein, The second OLT device (210) includes an uplink optical transmitting module (212) and a downlink optical transmitting module (211). The uplink optical transmitting module (212) is configured to transmit the uplink optical carrier, and the downlink optical transmitting module (211) is configured to transmit the downlink optical carrier. The first OLT device (110) is configured to perform at least one of the following: In the event of a failure in the downlink optical transmission module (211) of the second OLT device (210), the downlink optical signal is transmitted to the at least one second ONU device (230); or, In the event of a failure of the uplink optical transmission module (212) of the second OLT device (210), the uplink optical carrier is transmitted to the at least one second ONU device (230).

16. The optical communication system (100) of claim 14 or 15, wherein The first OLT device (110) includes an uplink optical transmitting module (112) and a downlink optical transmitting module (111). The uplink optical transmitting module (112) is configured to transmit the uplink optical carrier, and the downlink optical transmitting module (111) is configured to transmit the downlink optical carrier. The second OLT device (210) is configured to perform at least one of the following: In the event of a failure in the downlink optical transmission module (111) of the first OLT device (110), the downlink optical signal is transmitted to at least one first ONU device (130); or In the event of a failure of the uplink optical transmission module (112) of the first OLT device (110), the uplink optical carrier is transmitted to the at least one first ONU device (130).

17. The optical communication system (100) according to any one of claims 14 to 16, wherein, The first optical communication subnetwork (101) and the second optical communication subnetwork (102) are connected via a backup optical fiber.

18. The optical communication system (100) of claim 17, wherein, The backup optical fiber includes at least one of a first backup optical fiber, a second backup optical fiber, a third backup optical fiber, and a fourth backup optical fiber; The first backup fiber is configured to connect the first OLT device (110) to the transmission path of the downlink signal of the second optical communication subnetwork (102); The second backup fiber is configured to connect the first OLT device (110) to the transmission path of the uplink optical carrier of the second optical communication subnetwork (102); The third backup fiber is configured to connect the second OLT device (210) to the transmission path of the downlink signal of the first optical communication subnetwork (101); The fourth backup fiber is configured to connect the second OLT device (210) to the transmission path of the uplink optical carrier of the first optical communication subnetwork (101).

19. The optical communication system (100) of claim 18, wherein, The second optical communication subnetwork (102) further includes a second downlink splitter module (240), the input of which is connected to the second OLT device (210), and the output of which is connected to the at least one second ONU device (230). The second downlink splitter module (240) is configured to split the downlink optical signal input to the second downlink splitter module (240) into multiple parts and transmit them to the at least one second ONU device (230) respectively. The first backup optical fiber is connected to the input of the first OLT device (110) and the second downlink splitter module (240).

20. The optical communication system (100) of claim 19, wherein, The first optical communication sub-network (101) further includes a first downlink splitter module (140), the input of which is connected to the first OLT device (110), and the output of which is connected to the at least one first ONU device (130); the first downlink splitter module (140) is configured to split the downlink optical signal input to the first downlink splitter module (140) into multiple parts and transmit them to the at least one first ONU device (130) respectively; The first backup optical fiber connects the output of the first downlink splitter module (140) and the input of the second downlink splitter module (240).

21. The optical communication system (100) according to any one of claims 18 to 20, wherein, The second optical communication sub-network (102) further includes a second uplink splitter module (250), the input of which is connected to the second OLT device (210), and the output of which is connected to the at least one second ONU device (230); the second uplink splitter module (250) is configured to split the uplink optical carrier input to the second uplink splitter module (250) into multiple parts and transmit them to the at least one second ONU device (230) respectively; The second backup optical fiber connects the first OLT device (110) and the input of the second uplink splitter module (250).

22. The optical communication system (100) of claim 21, wherein, The first optical communication sub-network (101) further includes a first uplink splitter module (150), the input of which is connected to the first OLT device (110), and the output of which is connected to the at least one first ONU device (130); the first uplink splitter module (150) is configured to split the uplink optical carrier input to the first uplink splitter module (150) into multiple parts and transmit them to the at least one first ONU device (130) respectively; The second backup optical fiber connects the output of the first uplink splitter module (150) and the input of the second uplink splitter module (250).

23. The optical communication system (100) according to any one of claims 18 to 22, wherein, The first optical communication sub-network (101) further includes a first downlink splitter module (140), the input of which is connected to the first OLT device (110), and the output of which is connected to the at least one first ONU device (130); the first downlink splitter module (140) is configured to split the downlink optical signal input to the first downlink splitter module (140) into multiple parts and transmit them to the at least one first ONU device (130) respectively; The third backup optical fiber connects the input of the second OLT device (210) and the first downlink splitter module (140).

24. The optical communication system (100) according to claim 23, wherein, The second optical communication subnetwork (102) further includes a second downlink splitter module (240), the input of which is connected to the second OLT device (210), and the output of which is connected to the at least one second ONU device (230). The second downlink splitter module (240) is configured to split the downlink optical signal input to the second downlink splitter module (240) into multiple parts and transmit them to the at least one second ONU device (230) respectively. The third backup optical fiber connects the output of the second downlink splitter module (240) and the input of the first downlink splitter module (140).

25. The optical communication system (100) according to any one of claims 18 to 24, wherein, The first optical communication sub-network (101) further includes a first uplink splitter module (150), the input of which is connected to the first OLT device (110), and the output of which is connected to the at least one first ONU device (130); the first uplink splitter module (150) is configured to split the uplink optical carrier input to the first uplink splitter module (150) into multiple parts and transmit them to the at least one first ONU device (130) respectively; The fourth backup optical fiber connects the second OLT device (210) and the input of the first uplink splitter module (150).

26. The optical communication system (100) of claim 25, wherein, The second optical communication sub-network (102) further includes a second uplink splitter module (250), the input of which is connected to the second OLT device (210), and the output of which is connected to the at least one second ONU device (230); the second uplink splitter module (250) is configured to split the uplink optical carrier input to the second uplink splitter module (250) into multiple parts and transmit them to the at least one second ONU device (230) respectively; The fourth backup optical fiber connects the output of the second uplink splitter module (250) and the input of the first uplink splitter module (150).

27. The optical communication system (100) according to any one of claims 14 to 26, wherein, Each of the plurality of optical communication subnetworks is configured to be responsible for communication between the central controller of the vehicle (01) and electronic devices in a functional domain or body area.

28. The optical communication system (100) of claim 27, wherein, The OLT device (110) of each of the multiple optical communication sub-networks is integrated in the central controller.

29. The optical communication system (100) of claim 27 or 28, wherein At least one ONU device in each of the plurality of optical communication subnetworks is connected to electronic devices in the functional domain or vehicle body area via optical fiber communication or electrical communication.

30. The optical communication system (100) of claim 29, wherein, When the second OLT device (210) provides the uplink optical carrier to the at least one first ONU device (130), the controllers of some or all of the electronic devices connected to the at least one first ONU device (130) are in a low-power operating state. or, When the first OLT device (110) provides the uplink optical carrier to the at least one second ONU device (230), the controllers of some or all of the electronic devices connected to the at least one second ONU device (230) are in the low-power operating state.

31. The optical communication system (100) according to any one of claims 14 to 30, wherein, The OLT device (110) is integrated into the central controller of the vehicle (01), or the OLT device (110) is connected to the central controller of the vehicle (01).

32. The optical communication system (100) according to any one of claims 14 to 31, wherein The ONU device is connected to the electronic devices in the vehicle (01) via optical fiber communication or electrical communication, or the ONU device is integrated into the electronic devices in the vehicle (01), and the electronic devices in the vehicle (01) include at least one of sensors or actuators.

33. The optical communication system (100) of claim 32, wherein, The uplink optical signal carries the data information that the electronic device needs to feed back to the central controller.

34. The optical communication system (100) of claim 32 or 33, wherein The downlink optical signal carries instructions issued by the central controller to the electronic device.

35. An electronic and electrical system (10) for a vehicle, comprising an optical communication system (100) according to any one of claims 14 to 34, the electronic and electrical system (10) further comprising a central controller and electronic devices of the vehicle (01), the electronic devices comprising at least one of sensors or actuators; At least one of the first OLT device (110) or the second OLT device (210) is integrated into the central controller, or at least one of the first OLT device (110) or the second OLT device (210) is connected to the central controller of the vehicle (01); The ONU device includes at least one first ONU device (130) and at least one second ONU device (230), wherein the ONU device is connected to the electronic device via optical fiber communication or electrical communication, or the ONU device is integrated into the electronic device.

36. A vehicle (01) comprising at least one of the following: The electronic and electrical system (10) according to claim 13; or The electronic and electrical system (10) according to claim 35.

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