Multi-path cascade photoelectric shunt equipment and communication protection method, device and system thereof

Abstract

The invention provides a multi-path cascade photoelectric shunt device and a communication protection method, device and system thereof, and the method, device and system achieve the step-by-step connection between the multi-path cascade photoelectric shunt devices through a group of backbone photoelectric composite wire harnesses and a group of protection photoelectric composite wire harnesses through cascade ports in the multi-path cascade photoelectric shunt devices. Therefore, the protection of the backbone optical fiber cable is realized by the photoelectric branching equipment in a cascade mode.

Description

Technical Field

[0001] This invention relates to the field of optical communication, and in particular to a multi-channel cascaded optoelectronic splitter and its communication protection method, device, and system. Background Technology

[0002] With the acceleration of global digitalization, the automotive industry is rapidly transforming towards electrification, connectivity, intelligence, and sharing. Intelligent driving involves synchronously collecting data from sensor terminals, processing it with intelligent algorithms, and obtaining real-time perception of the vehicle's operating environment. As the level of intelligent driving increases, the number and types of sensors will continue to grow.

[0003] Sensors and actuators in new energy vehicles typically use traditional CAN (Controller Area Network) and LIN (Local Interconnect Network) buses. High-speed cameras and high-definition displays, due to the rapid increase in communication bandwidth, are gradually adopting fiber optic communication technology to replace traditional LVDS (Low Voltage Differential Signaling) serial point-to-point high-speed cable connections. Therefore, different car manufacturers and different stages of intelligent driving have resulted in complex, hybrid networking situations in new energy vehicles, employing multiple communication protocols, requiring different communication bandwidths, and based on different transmission media. This necessitates a unified networking architecture and related technologies and products to solve this complex hybrid networking problem.

[0004] Meanwhile, globally, efforts are being accelerated to improve the level of intelligent driving in automobiles. When the level of intelligent driving reaches L3 or above, the network security level of in-vehicle communication networks will be correspondingly improved, and communication systems should provide complete protection measures to meet the security requirements of in-vehicle applications.

[0005] Figure 1 For existing vehicle-mounted PON communication systems, a 2:m optoelectronic splitter is used to protect against faults in the backbone optoelectronic composite wiring harness.

[0006] The system includes: Headend #1; Headend #2; 2:m optoelectronic splitter, where m is a positive integer greater than 2; Terminal #1; Terminal #2. Headend #1 is typically the primary optical line terminal (OLT), responsible for data transmission during normal operation; Headend #2 is a backup or redundant protection device. PON: (Passive Optical Network).

[0007] When the main equipment (head unit #1) or the backbone link (backbone optoelectronic composite harness) fails, the system will switch to head unit #2, and the protective optoelectronic composite harness will quickly take over its work to ensure uninterrupted service.

[0008] However, the deployment of vehicle terminals differs from that in the telecommunications market, being relatively dispersed. There is an objective requirement for cascading of optoelectronic splitters. Therefore, a new type of optoelectronic splitter that meets the requirements of vehicle cascading applications and supports protection is needed to adapt to the application scenarios of deeply intelligent, highly reliable, and highly secure vehicle optical networks.

[0009] Figure 2 This is a diagram illustrating the cascaded application architecture of existing optoelectronic splitters. (Example:) Figure 2 As shown, head-end #1 is connected to the 2:m optoelectronic splitter via backbone #1 optoelectronic composite cable harness; multiple levels of 2:m optoelectronic splitters are connected via backbone #2 optoelectronic composite cable harnesses and backbone #3 optoelectronic composite cable harnesses, where m is a positive integer greater than 2. The protection ports between head-end #1 and the 2:m optoelectronic splitter, and the protection ports of each level of the 2:m optoelectronic splitter, are independent of each other. Each level of the 2:m optoelectronic splitter is connected to its corresponding terminal via branch optoelectronic composite cable harnesses, such as... Figure 2 As shown: The terminals include: Terminal #1, Terminal #m-1; Terminal #m, Terminal #2m-1; Terminal #2m, Terminal #3m-1.

[0010] Figure 2 The 2:m optoelectronic splitters used cannot protect the backbone fiber in cascaded mode. The main reason is that the protection ports cannot be directly cascaded because the protection ports of each 2:m optoelectronic splitter are independent. In the cascaded architecture, the protection ports of each optoelectronic splitter cannot be connected in series to form an independent backup optical path; instead, the signals from multiple protection ports can only be "aggregated" together, which defeats the purpose of end-to-end protection.

[0011] Of course, an additional 1:2 optocoupler can be added at each optocoupler location to cascade multiple protection ports step by step, but this approach will increase the complexity of the network topology and increase the insertion loss of the protection ports, making the solution difficult to implement.

[0012] Figure 3 This is a schematic diagram illustrating an extreme failure of an existing optoelectronic composite wire harness, such as... Figure 3 As shown, if both the backbone optoelectronic composite wiring harness between head-end #1 and 2:m optoelectronic splitters, and the protective optoelectronic composite wiring harness between head-end #2 and 2:m optoelectronic splitters fail simultaneously, communication will be completely interrupted. To achieve service recovery and protection under such extreme failure conditions, new optoelectronic splitters need to possess this capability, thereby improving the reliability and security of optical communication networks.

[0013] Therefore, there is an urgent need for a new type of multi-channel cascaded optoelectronic splitter to solve the above-mentioned technical problems. Summary of the Invention

[0014] This invention provides a multi-channel cascaded optoelectronic splitter device and its communication protection method, device, and system. Through the cascade ports in the multi-channel cascaded optoelectronic splitter device, the multi-channel cascaded optoelectronic splitter devices are connected step by step through a set of backbone optoelectronic composite wire bundles and a set of protection optoelectronic composite wire bundles, so that the optoelectronic splitter device can protect the backbone optical fiber cable in cascade mode.

[0015] This specification provides a multi-channel cascaded optoelectronic splitter device for vehicle use, comprising: a built-in optoelectronic splitter unit, wherein the interface of the optoelectronic splitter unit includes: a pair of cascaded ports, the cascaded ports being multi-channel, including cascaded input ports and cascaded output ports; and multiple up / down ports; The cascaded port is connected to an external set of backbone optoelectronic composite wire harnesses and a set of protective optoelectronic composite wire harnesses. The multi-channel cascaded optoelectronic splitter devices are connected step by step through a set of backbone optoelectronic composite wire harnesses and a set of protective optoelectronic composite wire harnesses. The upper and lower ports are connected to the corresponding external branch optoelectronic composite wire harnesses, wherein each external branch optoelectronic composite wire harness is connected to the corresponding terminal.

[0016] Optionally, the uplink / downlink ports and the cascaded ports are mapped to each other.

[0017] Optionally, the optoelectronic splitter unit includes: one 2:m optoelectronic splitter 30, where m is a positive integer greater than 2; and two 1:2 optoelectronic splitters 10 and 20.

[0018] Optionally, ports #30.1 to #30.m of the optoelectronic splitter 30 are connected to the optoelectronic composite harness of the branch, and the optoelectronic composite harness of the branch is connected to terminals #1 to #m; port #31.1 of the optoelectronic splitter 30 is connected to port #11.1 of the optoelectronic splitter 10; and port #31.2 of the optoelectronic splitter 30 is connected to port #21.1 of the optoelectronic splitter 20. Port #10.1 of the optoelectronic splitter 10 is connected to the optoelectronic composite wire harness at the backbone outlet, and port #11.2 of the optoelectronic splitter 10 is connected to the optoelectronic composite wire harness at the backbone inlet. Port #20.1 of the optoelectronic splitter 20 is connected to the optoelectronic composite wire harness of the protection outlet, and port #21.2 of the optoelectronic splitter 20 is connected to the optoelectronic composite wire harness of the protection inlet.

[0019] Optionally, the splitting ratio of #11.1 of the optoelectronic splitter 10 is the same as that of #21.1 of the optoelectronic splitter 20; and the splitting ratio of #11.2 of the optoelectronic splitter 10 is the same as that of #21.2 of the optoelectronic splitter 20.

[0020] Optionally, the direction of the protective pathway may be the same as or opposite to that of the backbone pathway.

[0021] This specification also provides a communication protection method based on multi-channel cascaded optoelectronic splitter equipment, wherein a fault occurs in the backbone optoelectronic composite wire harness between the first signal source device and the multi-channel cascaded optoelectronic splitter equipment, or a fault occurs in the backbone optoelectronic composite wire harness between multiple multi-channel cascaded optoelectronic splitter equipment located on one side of the first signal source device; The protective optoelectronic composite wire harness between the first signal source device and the multi-channel cascaded optoelectronic splitter device, and the protective optoelectronic composite wire harnesses connected step-by-step between the multiple multi-channel cascaded optoelectronic splitter devices located on the side of the first signal source device communicate with each other. The first signal source device is an optical line terminal.

[0022] This specification also provides a communication protection method based on multi-channel cascaded optoelectronic splitter equipment, wherein the backbone optoelectronic composite wire harness and the protection optoelectronic composite wire harness between the first signal source equipment and the multi-channel cascaded optoelectronic splitter equipment fail simultaneously, or the backbone optoelectronic composite wire harness and the protection optoelectronic composite wire harness between multiple multi-channel cascaded optoelectronic splitter equipment located on one side of the first signal source equipment fail simultaneously. The second signal source device communicates through the protective optoelectronic composite wire harness between the multi-channel cascaded optoelectronic splitter devices connected to it, and the protective optoelectronic composite wire harness between the multiple multi-channel cascaded optoelectronic splitter devices located on the side of the second signal source device; The first signal source device and the second signal source device are optical line terminals.

[0023] This specification also provides a communication protection device based on a multi-channel cascaded optoelectronic splitter, including: a fault monitoring module and a communication recovery module; wherein, The fault monitoring module is used to monitor whether the backbone optoelectronic composite harness between the first signal source device and the multi-channel cascaded optoelectronic splitter device has failed, or whether the backbone optoelectronic composite harness between multiple multi-channel cascaded optoelectronic splitters located on one side of the first signal source device has failed. The recovery communication module is used to communicate between the first signal source device and the multi-channel cascaded optoelectronic splitter device, and between the protective optoelectronic composite wire harnesses that are connected in stages between the multiple multi-channel cascaded optoelectronic splitters located on the side of the first signal source device.

[0024] This specification also provides a communication protection system based on a multi-channel cascaded optoelectronic splitter, including a processor and a memory, wherein the memory stores a program, and the processor executes the program to implement the communication protection method based on a multi-channel cascaded optoelectronic splitter as described in any of the above-described technical solutions.

[0025] This invention provides a multi-channel cascaded optoelectronic splitter device and its communication protection method, device, and system. Through the cascade ports in the multi-channel cascaded optoelectronic splitter device, the multi-channel cascaded optoelectronic splitter devices are connected step by step through a set of backbone optoelectronic composite wire bundles and a set of protection optoelectronic composite wire bundles, so that the optoelectronic splitter device can protect the backbone optical fiber cable in cascade mode. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This refers to existing vehicle-mounted PON communication systems. Figure 2 This is a diagram illustrating the cascaded application architecture of existing optoelectronic splitters. Figure 3 This diagram illustrates an extreme failure of an existing optoelectronic composite wire harness. Figure 4 This is a schematic diagram of the vehicle-mounted multi-channel cascaded optoelectronic splitter provided in Embodiment 1 of this specification; Figure 5 This is a schematic diagram of the internal implementation of the vehicle-mounted dual-channel cascaded optoelectronic splitter provided in Embodiment 2 of this specification; Figure 6 This is a network topology diagram of a multi-stage optoelectronic splitter cascaded with backbone and protection paths provided in Embodiment 3 of this specification; Figure 7 This is a schematic diagram of the internal implementation of the vehicle-mounted dual-channel cascaded optoelectronic splitter provided in Embodiment 4 of this specification; Figure 8 This is a network topology diagram of a multi-stage optoelectronic splitter cascaded with a backbone and protection bidirectional path provided in Embodiment 5 of this specification; Figure 9 This is a schematic diagram of a communication protection device based on a multi-channel cascaded optoelectronic splitter provided in Embodiment 6 of this specification. Detailed Implementation

[0028] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0029] The following is in conjunction with the appendix Figures 4 to 9 A more complete description of exemplary embodiments of the present invention (see appendix) Figures 1 to 3 The technical solutions involved are all existing technologies, which have been described in the background section and will not be described again in the detailed implementation section. However, exemplary embodiments can be implemented in many forms and should not be construed as limiting the invention to the embodiments set forth herein. Rather, providing these exemplary embodiments makes the invention more comprehensive and complete, and facilitates a full communication of the inventive concept to those skilled in the art. The same reference numerals in the figures denote the same or similar elements, components, or parts, and therefore repeated descriptions of them are omitted.

[0030] Subject to the technical concept of this invention, the features, structures, characteristics or other details described in a particular embodiment may be combined in one or more other embodiments in a suitable manner.

[0031] In the description of specific embodiments, the features, structures, characteristics, or other details described in this invention are intended to enable those skilled in the art to fully understand the embodiments. However, it is not excluded that those skilled in the art can practice the technical solutions of this invention without one or more of the specific features, structures, characteristics, or other details.

[0032] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0033] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0034] The terms “and / or” or “and / or” include all combinations of any one or more of the listed items.

[0035] This invention provides a multi-channel cascaded optoelectronic splitter device and its communication protection method, device, and system. Through the cascade ports in the multi-channel cascaded optoelectronic splitter device, the multi-channel cascaded optoelectronic splitter devices are connected step by step through a set of backbone optoelectronic composite wire bundles and a set of protection optoelectronic composite wire bundles, so that the optoelectronic splitter device can protect the backbone optical fiber cable in cascade mode.

[0036] The specific principle is described as follows: This specification provides a multi-channel cascaded optoelectronic splitter device for vehicle use, comprising: a built-in optoelectronic splitter unit, wherein the interface of the optoelectronic splitter unit includes: a pair of cascaded ports, the cascaded ports being multi-channel, including cascaded input ports and cascaded output ports; and multiple up / down ports; The cascaded port is connected to an external set of backbone optoelectronic composite wire harnesses and a set of protective optoelectronic composite wire harnesses. The multi-channel cascaded optoelectronic splitter devices are connected step by step through a set of backbone optoelectronic composite wire harnesses and a set of protective optoelectronic composite wire harnesses. The upper and lower ports are connected to the corresponding external branch optoelectronic composite wire harnesses, wherein each external branch optoelectronic composite wire harness is connected to the corresponding terminal.

[0037] Optionally, the uplink / downlink ports and the cascaded ports are mapped to each other.

[0038] Optionally, the optoelectronic splitter unit includes: one 2:m optoelectronic splitter 30, where m is a positive integer greater than 2; and two 1:2 optoelectronic splitters 10 and 20.

[0039] Optionally, ports #30.1 to #30.m of the optoelectronic splitter 30 are connected to the optoelectronic composite harness of the branch, and the optoelectronic composite harness of the branch is connected to terminals #1 to #m; port #31.1 of the optoelectronic splitter 30 is connected to port #11.1 of the optoelectronic splitter 10; and port #31.2 of the optoelectronic splitter 30 is connected to port #21.1 of the optoelectronic splitter 20. Port #10.1 of the optoelectronic splitter 10 is connected to the optoelectronic composite wire harness at the backbone outlet, and port #11.2 of the optoelectronic splitter 10 is connected to the optoelectronic composite wire harness at the backbone inlet. Port #20.1 of the optoelectronic splitter 20 is connected to the optoelectronic composite wire harness of the protection outlet, and port #21.2 of the optoelectronic splitter 20 is connected to the optoelectronic composite wire harness of the protection inlet.

[0040] Optionally, the splitting ratio of #11.1 of the optoelectronic splitter 10 is the same as that of #21.1 of the optoelectronic splitter 20; and the splitting ratio of #11.2 of the optoelectronic splitter 10 is the same as that of #21.2 of the optoelectronic splitter 20.

[0041] Optionally, the direction of the protective pathway may be the same as or opposite to that of the backbone pathway.

[0042] This specification also provides a communication protection method based on multi-channel cascaded optoelectronic splitter equipment, wherein a fault occurs in the backbone optoelectronic composite wire harness between the first signal source device and the multi-channel cascaded optoelectronic splitter equipment, or a fault occurs in the backbone optoelectronic composite wire harness between multiple multi-channel cascaded optoelectronic splitter equipment located on one side of the first signal source device; The protective optoelectronic composite wire harness between the first signal source device and the multi-channel cascaded optoelectronic splitter device, and the protective optoelectronic composite wire harnesses connected step-by-step between the multiple multi-channel cascaded optoelectronic splitter devices located on the side of the first signal source device communicate with each other. The first signal source device is an optical line terminal.

[0043] This specification also provides a communication protection method based on multi-channel cascaded optoelectronic splitter equipment, wherein the backbone optoelectronic composite wire harness and the protection optoelectronic composite wire harness between the first signal source equipment and the multi-channel cascaded optoelectronic splitter equipment fail simultaneously, or the backbone optoelectronic composite wire harness and the protection optoelectronic composite wire harness between multiple multi-channel cascaded optoelectronic splitter equipment located on one side of the first signal source equipment fail simultaneously. The second signal source device communicates through the protective optoelectronic composite wire harness between the multi-channel cascaded optoelectronic splitter devices connected to it, and the protective optoelectronic composite wire harness between the multiple multi-channel cascaded optoelectronic splitter devices located on the side of the second signal source device; The first signal source device and the second signal source device are optical line terminals.

[0044] This specification also provides a communication protection system based on a multi-channel cascaded optoelectronic splitter, including a processor and a memory, wherein the memory stores a program, and the processor executes the program to implement the communication protection method based on a multi-channel cascaded optoelectronic splitter as described in any of the above-described technical solutions.

[0045] Figure 4 The schematic diagram of the vehicle-mounted multi-channel cascaded optoelectronic splitter provided in Embodiment 1 of this specification is described in detail below: In this embodiment, the multi-channel cascaded optoelectronic splitter is composed of a built-in optoelectronic splitting unit; wherein, the interface of the optoelectronic splitting unit includes cascaded input / output ports #11.1~11.k and cascaded output / input ports #12.1~12.k used in pairs.

[0046] The cascade port connects to the external backbone optoelectronic composite wire harness (2 groups #1~g) and the protection optoelectronic composite wire harness (2 groups #h~k) to realize the step-by-step connection of the multi-channel cascaded optoelectronic splitter.

[0047] In this embodiment, the interface of the optoelectronic splitter unit includes upper and lower ports #10.1~10.m, which are connected to the external branch optoelectronic composite harness (1 group #1~m) to achieve connection with m terminals.

[0048] In this embodiment, the optoelectronic splitter unit can map the up and down ports #10.1~10.m to any port of the cascaded ports #11.1~11.k or #12.1~12.k.

[0049] The technical solution in this embodiment supports a multi-channel cascaded g:k optoelectronic hybrid wire harness protection mode; it also supports a multi-channel cascaded bidirectional g:k optoelectronic hybrid wire harness protection mode.

[0050] Figure 4 The vehicle-mounted multi-channel cascaded optoelectronic splitter in this system enables the splitting of optoelectronic signals. This vehicle-mounted multi-channel cascaded optoelectronic splitter enables the splitting and combining of optoelectronic signals; it has built-in multi-channel cascading ports for multi-channel cascading of optoelectronic signals; and it connects to a backbone optoelectronic composite harness (one set) and a protection optoelectronic composite harness (one set) to achieve backup and protection functions for services. Figure 5 This is a schematic diagram of the internal implementation of the vehicle-mounted dual-channel cascaded optoelectronic splitter provided in Embodiment 2 of this specification. The specific details are as follows: This embodiment demonstrates a vehicle-mounted dual-channel cascaded optoelectronic splitter, which consists of one 2:m optoelectronic splitter 30 and two 1:2 optoelectronic splitters 10 and 20.

[0051] Ports #30.1 to #30.m of the optoelectronic splitter 30 are connected to the branch optoelectronic composite wire harness and to terminals #1 to #m. Port #31.1 of the optoelectronic splitter 30 is connected to port #11.1 of the optoelectronic splitter 10. Port #31.2 of the optoelectronic splitter 30 is connected to port #21.1 of the optoelectronic splitter 20.

[0052] Port #10.1 of the optoelectronic splitter 10 is connected to the backbone outlet optoelectronic composite wire harness, and port #11.2 of the optoelectronic splitter 10 is connected to the backbone inlet optoelectronic composite wire harness.

[0053] Port #20.1 of the optoelectronic splitter 20 is connected to the protection output optoelectronic composite wire harness, and port #21.2 of the optoelectronic splitter 20 is connected to the protection input optoelectronic composite wire harness.

[0054] The splitting ratio of #11.1 of optoelectronic splitter 10 is the same as that of #21.1 of optoelectronic splitter 20. Similarly, the splitting ratio of #11.2 of optoelectronic splitter 10 is the same as that of #21.2 of optoelectronic splitter 20.

[0055] Figure 6 This is a network topology diagram of a multi-stage optoelectronic splitter cascaded with a backbone and protection paths, provided in Embodiment 3 of this specification.

[0056] like Figure 6 The diagram illustrates a network topology with cascaded optoelectronic splitters featuring a backbone and protection paths. It utilizes a multi-channel cascaded optoelectronic splitter as described in Example 2. Figure 6 When multiple faults occur in the backbone optoelectronic composite harness, head end #1 will lose service connection. However, head end #2 will quickly complete service switching through the protection path to ensure that users are unaware of the fault.

[0057] Figure 7 This is a schematic diagram of the internal implementation of the vehicle-mounted dual-channel cascaded optoelectronic splitter provided in Embodiment 4 of this specification.

[0058] This embodiment demonstrates a vehicle-mounted dual-channel cascaded optoelectronic splitter, which internally consists of one 2:m optoelectronic splitter 30 and two 1:2 optoelectronic splitters 10 and 20, and the logical relationship of the internal port connections remains unchanged. For detailed description, please refer to... Figure 5 The description of Example 2 in the text.

[0059] and Figure 5 The difference in Example 2 is that the direction of the protection pathway is opposite to that of the backbone pathway. The backbone pathway runs from right to left, i.e., in the northward cascading direction, while the protection pathway runs from left to right, i.e., in the southward cascading direction.

[0060] Figure 8 This is a network topology diagram of a multi-stage optoelectronic splitter cascaded with a backbone and protection bidirectional path, as provided in Example 5 of this specification.

[0061] Figure 8 This demonstrates a network topology with cascaded optoelectronic splitters featuring a backbone and protection bidirectional paths, employing... Figure 7 The vehicle-mounted dual-channel cascaded optoelectronic splitter provided in Example 4.

[0062] like Figure 8 As shown in the diagram, when both the backbone optoelectronic composite harness and the protection optoelectronic composite harness fail simultaneously, head end #1 will lose the service connection to the right of the breakpoint. However, head end #2 will quickly restore the service to the right of the breakpoint through the protection path, ensuring that the user is unaware of the fault.

[0063] Figure 9 The schematic diagram of the communication protection device based on multi-channel cascaded optoelectronic splitter provided in Embodiment 6 of this specification includes: a fault monitoring module 601 and a communication recovery module 602; in, The fault monitoring module 601 is used to monitor whether the backbone optoelectronic composite harness between the first signal source device and the multi-channel cascaded optoelectronic splitter device has failed, or whether the backbone optoelectronic composite harness between multiple multi-channel cascaded optoelectronic splitters located on one side of the first signal source device has failed. The recovery communication module 602 is used to communicate between the first signal source device and the multi-channel cascaded optoelectronic splitter device, and between the protective optoelectronic composite wire harnesses that are connected step-by-step between the multiple multi-channel cascaded optoelectronic splitters located on the side of the first signal source device.

[0064] In this embodiment, the cascading ports in the multi-channel cascaded optoelectronic splitter enable the multi-channel cascaded optoelectronic splitter to be connected step by step through a set of backbone optoelectronic composite wire harnesses and a set of protection optoelectronic composite wire harnesses, so that the optoelectronic splitter can protect the backbone optical fiber cable in the cascaded mode.

[0065] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the present invention is not inherently related to any specific computer, virtual device, or electronic device, and various general-purpose devices can also implement the present invention. The above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0066] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0067] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A multi-channel cascaded optoelectronic splitter, characterized in that, This multi-channel cascaded optoelectronic splitter device is used in vehicles and includes: a built-in optoelectronic splitter unit, wherein the interface of the optoelectronic splitter unit includes: a pair of cascaded ports, the cascaded ports being multi-channel, including cascaded input ports and cascaded output ports; and multiple up / down ports; The cascaded port is connected to an external set of backbone optoelectronic composite wire harnesses and a set of protective optoelectronic composite wire harnesses. The multi-channel cascaded optoelectronic splitter devices are connected step by step through a set of backbone optoelectronic composite wire harnesses and a set of protective optoelectronic composite wire harnesses. The upper and lower ports are connected to the corresponding external branch optoelectronic composite wire harnesses, wherein each external branch optoelectronic composite wire harness is connected to the corresponding terminal.

2. The multi-channel cascaded optoelectronic splitter according to claim 1, characterized in that, The uplink and downlink ports are mapped to each other.

3. The multi-channel cascaded optoelectronic splitter according to claim 1 or 2, characterized in that, The optoelectronic splitter unit includes: one 2:m optoelectronic splitter 30, where m is a positive integer greater than 2; and two 1:2 optoelectronic splitters 10 and 20.

4. The multi-channel cascaded optoelectronic splitter according to claim 3, characterized in that, Ports #30.1 to #30.m of the optoelectronic splitter 30 are connected to the optoelectronic composite wire harness of the branch, and the optoelectronic composite wire harness of the branch is connected to terminals #1 to #m; port #31.1 of the optoelectronic splitter 30 is connected to port #11.1 of the optoelectronic splitter 10; port #31.2 of the optoelectronic splitter 30 is connected to port #21.1 of the optoelectronic splitter 20. The port # of the optoelectronic splitter 10 10.1 Connected to the optoelectronic composite harness at the backbone outlet; Port #11.2 of the optoelectronic splitter 10 is connected to the optoelectronic composite harness at the backbone inlet. Port #20.1 of the optoelectronic splitter 20 is connected to the optoelectronic composite wire harness of the protection outlet, and port #21.2 of the optoelectronic splitter 20 is connected to the optoelectronic composite wire harness of the protection inlet.

5. The multi-channel cascaded optoelectronic splitter according to claim 4, characterized in that, The splitting ratio of #11.1 of the optoelectronic splitter 10 is the same as that of #21.1 of the optoelectronic splitter 20; the splitting ratio of #11.2 of the optoelectronic splitter 10 is the same as that of #21.2 of the optoelectronic splitter 20.

6. The multi-channel cascaded optoelectronic splitter according to claim 4, characterized in that, The direction of the protective pathway is the same as or opposite to that of the backbone pathway.

7. A communication protection method based on multi-channel cascaded optoelectronic splitter equipment, characterized in that, The backbone optoelectronic composite wiring harness between the first signal source device and the multi-channel cascaded optoelectronic splitter device fails, or the backbone optoelectronic composite wiring harness between multiple multi-channel cascaded optoelectronic splitters located on one side of the first signal source device fails. The protective optoelectronic composite wire harness between the first signal source device and the multi-channel cascaded optoelectronic splitter device, and the protective optoelectronic composite wire harnesses connected step-by-step between the multiple multi-channel cascaded optoelectronic splitter devices located on the side of the first signal source device communicate with each other. The first signal source device is an optical line terminal.

8. A communication protection method based on multi-channel cascaded optoelectronic splitter equipment, characterized in that, The backbone optoelectronic composite harness and the protection optoelectronic composite harness between the first signal source device and the multi-channel cascaded optoelectronic splitter device both fail simultaneously; or, the backbone optoelectronic composite harness and the protection optoelectronic composite harness between multiple multi-channel cascaded optoelectronic splitters located on one side of the first signal source device both fail simultaneously. The second signal source device communicates through the protective optoelectronic composite wire harness between the multi-channel cascaded optoelectronic splitter devices connected to it, and the protective optoelectronic composite wire harness between the multiple multi-channel cascaded optoelectronic splitter devices located on the side of the second signal source device; The first signal source device and the second signal source device are optical line terminals.

9. A communication protection device based on multi-channel cascaded optoelectronic splitter equipment, characterized in that, include: Fault monitoring module, communication recovery module; among which, The fault monitoring module is used to monitor whether the backbone optoelectronic composite harness between the first signal source device and the multi-channel cascaded optoelectronic splitter device has failed, or whether the backbone optoelectronic composite harness between multiple multi-channel cascaded optoelectronic splitters located on one side of the first signal source device has failed. The recovery communication module is used to communicate between the first signal source device and the multi-channel cascaded optoelectronic splitter device, and between the protective optoelectronic composite wire harnesses that are connected in stages between the multiple multi-channel cascaded optoelectronic splitters located on the side of the first signal source device.

10. A communication protection system based on a multi-channel cascaded optoelectronic splitter, comprising a processor and a memory, wherein the memory stores a program, characterized in that, When the processor executes the program, it implements the method of any one of claims 7 or 8.

Images