A communication optical module, a second communication device, a network system and a transmission method

Abstract

The application relates to the technical field of network communication, in particular to a communication optical module, a second communication device, a network system and a transmission method. The communication optical module comprises a first switch unit, a second switch unit, a first channel structure, a first transmission channel and a second transmission channel; the first transmission channel is connected between the first switch unit and the second switch unit, and the second transmission channel is connected between the first channel structure and the second switch unit; the first switch unit and the second switch unit are also connected with a first communication device; when the first communication device is in an abnormal state, optical signals input to the first switch unit are transmitted to the second switch unit through the first transmission channel, and optical signals input to the first channel structure are transmitted to the second switch unit through the second transmission channel. The communication optical module in the application is connected with the first communication device, and when the first communication device is in the abnormal state, the optical signals can bypass the first communication device, thereby ensuring the stable operation of the whole network.

Description

Technical Field

[0001] This application relates to the field of network communication technology, and in particular to a communication optical module, a second communication device, a network system, and a transmission method. Background Technology

[0002] In industrial switch group single-ring network scenarios, most networks adopt a single-ring network approach to save costs. However, in this approach, if any device in the single-ring network fails or loses power, the entire single-ring network will be affected, thus impacting its operation. Therefore, how to ensure that the entire single-ring network can still operate stably even when any device in the network malfunctions has become a pressing issue. Summary of the Invention

[0003] This application provides a communication optical module, a second communication device, a network system, and a transmission method. The communication optical module is connected to a first communication device. When the first communication device is in an abnormal state, the optical signal in the communication optical module can bypass the first communication device to ensure stable transmission of the optical signal, thereby ensuring the stable operation of the entire network.

[0004] In a first aspect, this application provides a communication optical module for connection to a first communication device. The communication optical module includes: a first switching unit, a second switching unit, a first channel structure, a first transmission channel, and a second transmission channel; the first transmission channel is connected between the first switching unit and the second switching unit, and the second transmission channel is connected between the first channel structure and the second switching unit; the first switching unit and the second switching unit are also connected to the first communication device; when the first communication device is in an abnormal state, the optical signal input to the first switching unit is transmitted to the second switching unit through the first transmission channel, and the optical signal input to the first channel structure is transmitted to the second switching unit through the second transmission channel.

[0005] In this embodiment, when the first communication device is in an abnormal state, the optical signal can bypass the first communication device and be transmitted to other communication optical modules through the first transmission channel and the second transmission channel, so as to ensure that the optical signal can be transmitted stably and thus ensure that the network system can work stably.

[0006] In one embodiment, the communication optical module further includes a receiving unit and a transmitting unit. The receiving unit is connected between the first switching unit and the first communication device, and the transmitting unit is connected between the second switching unit and the first communication device. When the first communication device is working normally, the optical signal input to the first switching unit is transmitted to the first communication device through the receiving unit, and the transmitting unit converts the electrical signal output by the first communication device into an optical signal and transmits it to the second switching unit. In this configuration, the receiving unit and the transmitting unit are used to convert between optical and electrical signals. The receiving unit and the transmitting unit can be integrated into the communication optical module. This can be understood as the communication optical module including a housing, in which the receiving unit and the transmitting unit are disposed.

[0007] In one embodiment, the communication optical module further includes a wavelength coupling unit, which is connected to the first transmission channel, the transmitting unit, and the second switching unit. The wavelength coupling unit is used to: couple the optical signal transmitted through the first transmission channel to the second switching unit when the first communication device malfunctions; and couple the optical signal transmitted by the transmitting unit to the second switching unit when the first communication device is working normally. The wavelength coupling unit ensures that the optical signal in the first transmission channel can be coupled to the second switching unit, guaranteeing the stability of the optical signal transmission. The wavelength coupling unit also ensures that the optical signal output from the transmitting unit is stably transmitted to the second switching unit, thereby ensuring stable transmission of the optical signal within the communication optical module.

[0008] In one embodiment, the communication optical module further includes a cross-coupling unit. The second switching unit includes a switching body and a second channel structure. The cross-coupling unit is connected to the second channel structure, the switching body, the transmitting unit, and the first transmission channel, respectively. The switching body is connected to the second transmission channel. The cross-coupling unit is used to: couple the optical signal transmitted through the first transmission channel to the second channel structure when the first communication device is in an abnormal state; and couple the optical signal transmitted by the transmitting unit to the switching body when the first communication device is working normally. The cross-coupling unit ensures stable transmission of the optical signal within the communication optical module. Furthermore, the second channel structure reduces the number of ports in the switching body, simplifies its structure, and ensures stable transmission of the optical signal passing through the second switching unit.

[0009] In the above embodiments, at least one of the first channel structure and the second channel structure includes a waveguide structure, an optical fiber structure, or a light guide structure.

[0010] Secondly, this application provides a second communication device, which includes a first communication optical module and a second communication optical module. Either the first communication optical module or the second communication optical module includes a first switching unit, a second switching unit, a first channel structure, a first transmission channel, and a second transmission channel. In either the first communication optical module or the second communication optical module: the first transmission channel is connected between the first switching unit and the second switching unit; the second transmission channel is connected between the first channel structure and the second switching unit; and the first switching unit and the second switching unit are also connected to the first communication device.

[0011] The second switching unit in the first communication optical module is connected to the first channel structure in the second communication optical module, and the first channel structure in the first communication optical module is connected to the second switching unit in the second communication optical module;

[0012] When the first communication device is in an abnormal state, the optical signal input to the first switching unit in the first communication optical module is transmitted to the second switching unit in the first communication optical module through the first transmission channel in the first communication optical module. The second switching unit in the first communication optical module transmits the received optical signal to the first channel structure in the second communication optical module. The optical signal input to the first channel structure in the second communication optical module is transmitted to the second switching unit in the second communication optical module through the second transmission channel in the second communication optical module.

[0013] In this embodiment, when the first communication device is in an abnormal state, the optical signal input to the first communication optical module can bypass the first communication device connected to the first communication optical module and be transmitted to the next second communication device, so that the optical signal can continue to be transmitted. This ensures that the entire network system can still work stably when any of the first communication optical modules in the entire network system is in an abnormal state, thereby improving the stability of the network system.

[0014] In one embodiment, when the first communication device is in an abnormal state, the optical signal input to the first switching unit in the second communication optical module is transmitted to the second switching unit in the second communication optical module through the first transmission channel in the second communication optical module. The second switching unit in the second communication optical module transmits the optical signal to the first channel structure in the first optical communication module. The optical signal is then transmitted to the second switching unit in the first communication optical module through the second transmission channel in the first communication optical module. The second optical switching unit then outputs the optical signal to the previous second communication device, allowing the optical signal to bypass the first communication device and be transmitted to the previous second communication device. This ensures that when any of the first communication devices 1 in the entire network system is in an abnormal state, the bidirectional signal in the entire network system can be transmitted stably, improving the stability of the network system.

[0015] Thirdly, this application also provides a network system comprising a first communication device and a second communication device as described in the second aspect, wherein the first and second communication devices are connected, and the number of both the first and second communication devices is greater than or equal to two, with each first communication device corresponding to one second communication device. When any of the first communication devices is in an abnormal state, the optical signal in the second communication device can be directly transmitted to the next or previous second communication device, bypassing the first communication device in an abnormal state, thereby ensuring that the entire network system can operate normally.

[0016] Fourthly, this application also provides a method for transmitting optical signals in a communication optical module, the method comprising:

[0017] The first communication device was determined to be in an abnormal state.

[0018] The optical signal input to the first switching unit is transmitted to the second switching unit through the first transmission channel, and the optical signal input to the first channel structure is transmitted to the second switching unit through the second transmission channel;

[0019] The communication optical module includes: a first switching unit, a second switching unit, a first channel structure, a first transmission channel, and a second transmission channel; the first transmission channel is connected between the first switching unit and the second switching unit, and the second transmission channel is connected between the first channel structure and the second switching unit; the first switching unit and the second switching unit are also connected to the first communication device.

[0020] It is confirmed that the first communication device is in normal working condition;

[0021] The optical signal input to the first switching unit is transmitted to the receiving unit, and the optical signal input to the transmitting unit is transmitted to the second switching unit;

[0022] The receiving unit is connected between the first switching unit and the first communication device, and the transmitting unit is connected between the second switching unit and the first communication device.

[0023] This method can control the transmission path of optical signals in the communication optical module when the first communication device is in an abnormal state, allowing the optical signals in the communication optical module to bypass the first communication device in an abnormal state. This method can also control the transmission path of optical signals in the communication optical module when the first communication device is in a normal working state, ensuring that the optical signals pass through the first communication device in a normal working state.

[0024] Fifthly, this application also provides a method for transmitting optical signals in the second communication device of the second aspect, the method comprising:

[0025] The first communication device was determined to be in an abnormal state.

[0026] The optical signal input to the first switching unit in the first communication optical module is transmitted to the second switching unit in the first communication optical module through the first transmission channel in the first communication optical module. The second switching unit in the first communication optical module transmits the received optical signal to the first channel structure in the second communication optical module. The optical signal input to the first channel structure in the second communication optical module is transmitted to the second switching unit in the second communication optical module through the second transmission channel in the second communication optical module.

[0027] This method can control the transmission path of optical signals in the first and second communication optical modules when the first communication device is in an abnormal state, so that the optical signals in the second communication device can bypass the first communication device in an abnormal state, thus ensuring stable transmission of optical signals. Attached Figure Description

[0028] Figure 1 A schematic diagram of the structure of a network system provided in an embodiment of this application;

[0029] Figure 2 This is another schematic diagram of the network system provided in the embodiments of this application;

[0030] Figure 3 This is a schematic diagram of the structure of a second communication device provided in an embodiment of this application;

[0031] Figure 4 This is another schematic diagram of the structure of the second communication device provided in the embodiments of this application;

[0032] Figure 5This is another schematic diagram of the structure of the second communication device provided in the embodiments of this application;

[0033] Figure 6 This is a schematic diagram of the structure of a communication optical module provided in an embodiment of this application;

[0034] Figure 7 Another structural schematic diagram of the communication optical module provided in the embodiments of this application;

[0035] Figure 8 Another structural schematic diagram of the communication optical module provided in the embodiments of this application;

[0036] Figure 9 Another structural schematic diagram of the communication optical module provided in the embodiments of this application;

[0037] Figure 10 Another structural schematic diagram of the communication optical module provided in the embodiments of this application;

[0038] Figure 11 Another structural schematic diagram of the communication optical module provided in the embodiments of this application;

[0039] Figure 12 Another structural schematic diagram of the communication optical module provided in the embodiments of this application;

[0040] Figure 13 Another structural schematic diagram of the communication optical module provided in the embodiments of this application;

[0041] Figure 14 for Figure 13 A schematic diagram of the interconnection between two communication optical modules;

[0042] Figure 15 This is another structural schematic diagram of the communication optical module provided in an embodiment of this application. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0044] In industrial switch group single-ring network scenarios, most networks adopt a single-ring network to save costs. All devices in a single-ring network are connected through a single loop, forming a closed loop. Because a single-ring network includes multiple communication devices and has only one transmission path, its fault tolerance is relatively low. If a communication device in the loop fails, it may cause the entire network to lose communication.

[0045] Therefore, ensuring that the entire network system can still operate stably when any communication device malfunctions has become an urgent problem to be solved.

[0046] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more” unless the context clearly indicates otherwise.

[0047] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0048] Figure 1 A schematic diagram of the structure of a network system provided in an embodiment of this application; Figure 2 This is another schematic diagram of the network system provided in an embodiment of this application. (Refer to...) Figure 1 and Figure 2 The network system may include a first communication device 1 and a second communication device 2. The first communication device 1 is connected to the second communication device 2. The number of first communication devices 1 can be two, three, four, or more, and the number of second communication devices 2 can also be two, three, four, or more. Specifically, the number of second communication devices 2 can be the same as the number of first communication devices 1, with one first communication device 1 corresponding to one second communication device 2. The first communication device 1 can be a switch, a Wi-Fi access point, or other device connected to the second communication device. The second communication device can be a signal converter or a switch structure. When the first communication device is in an abnormal operating state, the optical signal in the corresponding second communication device 2 can bypass the first communication device 1 and be transmitted to the next or previous second communication device 2 to ensure the stable operation of the entire network system. The abnormal state of the first communication device 1 may include at least one of the following: the first communication device 1 is powered off, the first communication device 1 is damaged, or the first communication device 1 is under maintenance.

[0049] Figure 3 This is a schematic diagram of a second communication device provided in an embodiment of this application. (Refer to...) Figure 1 , Figure 2 and Figure 3 The second communication device 2 may include two communication optical modules, namely a first communication optical module 2a and a second communication optical module 2b. Either the first communication optical module 2a or the second communication optical module 2b includes a first switching unit 20, a second switching unit 21, a first channel structure 29, a first transmission channel 23, and a second transmission channel 24. In either the first communication optical module 2a or the second communication optical module 2b, the first transmission channel 23 is connected between the first switching unit 20 and the second switching unit 21. The first switching unit 20 and the second switching unit 21 are also connected to the first communication device 1. The second switching unit 21 in the first communication optical module 2a is connected to the first channel structure 29 in the second communication optical module 2b, and the second switching unit 21 in the second communication optical module 2b is connected to the first channel structure 29 in the first communication optical module 2a. The first switching unit 20 of either the first communication optical module 2a or the second communication optical module 2b may also be connected to a receiving unit 26, and the second switching unit 21 of the first communication optical module 2a may also be connected to a transmitting unit 25. Similarly, the first switching unit 20 in the second communication optical module 2b can also be connected to a receiving unit 26, and the second switching unit 21 in the second communication optical module 2b can also be connected to a transmitting unit 25. Both the receiving unit 26 and the transmitting unit 25 are connected to the first communication device 1.

[0050] It is worth mentioning that the receiving unit 26 and transmitting unit 25 connected to the first communication optical module 2a can also be integrated into the first communication optical module 2a. This can be understood as the first communication optical module 2a including a housing, with the receiving unit 26 and transmitting unit 25 disposed within the housing. Alternatively, the receiving unit 26 and transmitting unit 25 connected to the first communication optical module 2a can also be disposed outside the housing. Correspondingly, the receiving unit 25 and transmitting unit 26 connected to the second communication optical module 2b can also be integrated into the second communication optical module 2b. This can be understood as the second communication optical module 2b including a housing, with the receiving unit 25 and transmitting unit 26 disposed within the housing. Alternatively, the receiving unit 25 and transmitting unit 26 connected to the second communication optical module 2b can also be disposed outside the housing.

[0051] When the first communication device 1 is in an abnormal state, the optical signal input to the first switching unit 20 in the first communication optical module 2a is transmitted through the first transmission channel 23 to the second switching unit 21 in the first communication optical module 2a. The second switching unit 21 in the first communication optical module 2a transmits the received optical signal to the first channel structure 29 in the second communication optical module 2b. The first channel structure 29 in the second communication optical module 2b transmits the optical signal to the second switching unit 21 in the second communication optical module 2b, and then through the second switching unit 21 to the next second communication device. This ensures that when the first communication device 1 is in an abnormal state, the optical signal input to the first communication optical module 2a can bypass the first communication device 1 and be transmitted to the next second communication device, allowing the optical signal to continue transmitting. This ensures that even when any one of the first communication optical modules 1 in the entire network system is in an abnormal state, the entire network system can still operate stably, improving the stability of the network system.

[0052] When the first communication device 1 is in an abnormal state, the optical signal input to the first switching unit 20 in the second communication optical module 2b is transmitted to the second switching unit 21 in the second communication optical module 2b through the first transmission channel 23 in the second communication optical module 2b. The second switching unit 21 in the second communication optical module 2b transmits the optical signal to the first channel structure 29 in the first optical communication module 2a. The optical signal is transmitted to the second switching unit 21 in the first communication optical module 2a through the second transmission channel 24 in the first communication optical module 2a. The second optical switching unit 21 then outputs the optical signal to the previous second communication device, so that the optical signal can bypass the first communication device 1 and be transmitted to the previous second communication device, allowing the optical signal to continue to be transmitted. This ensures that when any of the first communication devices 1 in the entire network system is in an abnormal state, the bidirectional signal in the entire network system can be transmitted stably, improving the stability of the network system.

[0053] Wherein, the optical signal input to the first switching unit 20 in the first communication optical module 2a is an uplink signal, and the optical signal input to the first optical switching unit 20 in the second communication optical module 2b is a downlink signal. Alternatively, the optical signal input to the first switching unit 20 in the first communication optical module is a downlink signal, and the optical signal input to the first optical switching unit 20 in the second communication optical module 2b is an uplink signal.

[0054] When the first communication device 1 is working normally, the optical signal input to the first switching unit 20 in the first communication optical module 2a is transmitted to the receiving unit 26 through the first switching unit 20 in the first communication optical module 2a. The receiving unit 26 converts the optical signal into an electrical signal and transmits it to the first communication device 1. The first communication device 1 transmits the electrical signal to the transmitting unit 25 in the second communication optical module 2b. The transmitting unit 25 converts the electrical signal into an optical signal and transmits the optical signal to the second switching unit 21 in the second communication optical module 2b. The second switching unit 21 transmits the optical signal to the next second communication device.

[0055] The optical signal input to the first switching unit 20 in the second communication optical module 2b is transmitted to the receiving unit 26 via the first switching unit 20 in the second communication optical module 2b. The receiving unit 26 converts the optical signal into an electrical signal and outputs it to the first communication device 1. The first communication device 1 transmits the electrical signal to the transmitting unit 25 in the first communication optical module 2a. The transmitting unit 25 converts the electrical signal into an optical signal and transmits the optical signal to the second switching unit 21 in the first communication optical module 2a. The second switching unit 21 transmits the optical signal to the preceding second communication device. In this method, the bidirectional signal transmission in the entire network system can be guaranteed when the first communication device 1 is working normally. It can also be guaranteed that when the first communication device 1 is malfunctioning, the optical signal can bypass the first communication device 1, and the bidirectional signal in the entire network system can still be transmitted stably, thereby improving the stability of the network system.

[0056] Figure 4 This is another structural schematic diagram of the second communication device provided in an embodiment of this application. (Continue referring to...) Figure 1 and Figure 4 Both the first communication optical module 2a and the second communication optical module 2b include a wavelength coupling unit 22. The wavelength coupling unit 22 in either the first communication optical module 2a or the second communication optical module 2b is connected to the first transmission channel 23, the transmitting unit 27, and the second switching unit 21, respectively. When the first communication device 1 is in an abnormal state, the optical signal output through the first transmission channel 23 is coupled to the second switching unit 21 through the wavelength coupling unit 22 to ensure that the optical signal can be transmitted to the second switching unit 21. When the first communication device 1 is working normally, the optical signal emitted by the transmitting unit 25 is coupled to the second switching unit 21 through the wavelength coupling unit 22 to ensure that the optical signal transmitted by the transmitting unit 25 can be transmitted to the second switching unit 21.

[0057] Figure 5 This is another structural schematic diagram of the second communication device provided in an embodiment of this application. (Continue referring to...) Figure 2 and Figure 5In some other embodiments, the first communication optical module 2a and the second communication optical module 2b further include a cross-coupling unit 22a. The second switching unit in either the first communication optical module 2a or the second communication optical module 2b includes a switching body 210 and a second channel structure 211. The cross-coupling unit 22a is connected to the second channel structure 211, the switching body 210, and the transmitting unit 25, respectively. The switching body 210 and the first channel structure 29 are connected through a second transmission channel 23. When the first communication device 1 is in an abnormal state, the optical signal input to the first switching unit 20 in the first communication optical module 2a is transmitted through the first transmission channel 23 to the cross-coupling unit 22a in the first communication optical module 2a. The cross-coupling unit 22a couples the optical signal to the second channel structure 211 and transmits it through the second channel structure 211 to the first channel structure 29 in the second communication optical module 2b. The first channel structure 29 in the second communication optical module 2b guides the optical signal to the switching body 210 in the second communication optical module 2b, and then conducts it to the next second communication device through the switching body 210. To ensure that when the first communication device 1 is in an abnormal state, the optical signal input to the first communication optical module 2a can bypass the first communication device and be transmitted to the next second communication device. The cross-coupling unit 22a allows the optical signal in the first transmission channel to be coupled into the second channel structure, ensuring the stability of the optical signal transmission. The second channel structure 211 reduces the number of ports in the switch body 210, simplifies the structure of the switch body 210, and ensures stable transmission of the optical signal passing through the second switching unit 20.

[0058] When the first communication device 1 is in an abnormal state, the optical signal input to the first switching unit 20 in the second communication optical module 2b is transmitted through the first transmission channel 23 in the second communication optical module 2b to the cross-coupling unit 22a in the second communication optical module 2b. The cross-coupling unit 22a couples the optical signal to the second channel structure 211 of the second communication optical module 22a, and transmits the optical signal through the second channel structure 211 to the first channel structure 29 in the first optical communication module 2a. The optical signal is then transmitted through the second transmission channel 24 in the first communication optical module 2a to the switching body 210 in the first communication optical module 2a, and output to the previous second communication device through the switching body 210. This allows the optical signal to bypass the first communication device and be transmitted to the previous second communication device, ensuring that the optical signal continues to be transmitted. This ensures that even when any first communication optical module in the entire network system is in an abnormal state, the entire network system can still operate stably, thus improving the stability of the network system.

[0059] When the first communication device 1 is working normally, the optical signal input to the first switching unit 20 in the first communication optical module 2a is transmitted to the receiving unit 26 through the first switching unit 20 in the first communication optical module 2a. The receiving unit 26 converts the optical signal into an electrical signal and transmits it to the first communication device 1. The first communication device 1 transmits the electrical signal to the transmitting unit 25 in the second communication optical module 2b. The transmitting unit 25 converts the electrical signal into an optical signal and transmits the optical signal to the cross-coupling unit 22a. The cross-coupling unit 22a couples the optical signal to the switching body 210 and outputs it to the next second communication device through the switching body 210.

[0060] The optical signal input to the first switching unit 20 in the second communication optical module 2b is transmitted to the receiving unit 26 via the first switching unit 20 in the first communication optical module 2a. The receiving unit 26 converts the optical signal into an electrical signal and outputs it to the first communication device 1. The first communication device 1 transmits the electrical signal to the transmitting unit 25 in the first communication optical module 2a. The transmitting unit 25 converts the electrical signal into an optical signal and transmits it to the cross-coupling unit 22a in the first communication optical module 2a. The cross-coupling unit 22a couples the optical signal to the switching body 210 in the first communication optical module 2a. The second switching unit then transmits the optical signal to the preceding second communication device. The cross-coupling unit couples the optical signal transmitted by the transmitting unit to the switching body 210, ensuring stable optical signal transmission even when the first communication device is operating normally.

[0061] In the above embodiments, the first communication optical module 2a may include a wavelength coupling unit 22, the second communication optical module 2b may include a cross-coupling unit 22a, and the second switching unit 21 in the second communication optical module 2b may include a switch body 210 and a second channel structure 211. Alternatively, the second communication optical module 2b may include a wavelength coupling unit 22, the first communication optical module 2a may include a cross-coupling unit 22a, and the second switching unit 21 in the first communication optical module 2a may include a switch body 210 and a second channel structure 211. Or, the structures in the first communication optical module 2a and the second communication optical module 2b may be identical. The first channel structure 29 may include a waveguide structure, an optical fiber structure, or a light-guiding structure, etc., and the second channel structure 211 may include a waveguide structure, an optical fiber structure, or a light-guiding structure, etc. The structures of the first channel structure 29 and the second channel structure 211 may be the same or different, and can be specifically configured according to actual needs; no specific limitations are made here.

[0062] In the above embodiments, the first switching unit 20 and the receiving unit 26 corresponding to the first switching unit 20 can be connected through the first coupling unit 28 to ensure that the optical signal output by the first switching unit 20 can be output to the receiving unit 26. The transmitting unit 25 and the wavelength coupling unit 22 can also be connected through the second coupling unit 27. In some other embodiments, the transmitting unit 25 and the cross-coupling unit 22a can also be connected through the second coupling unit 27. This is to ensure that the optical signal output by the transmitting unit 25 can be output to the wavelength coupling unit 22 or the cross-coupling unit 22a. The first coupling unit and the second coupling unit can be optical fibers, spatial light, or waveguide mode converters, etc.

[0063] To better understand the signal transmission path, the following explanation uses the example of the first and second communication optical modules having the same structure. (Refer to...) Figure 1 and Figure 4 The first switching unit 20 may include at least a first input port 20a, a first output port 20b, and a second output port 20c. The second switching unit 21 may include at least a second input port 21d, a third input port 21c, a third output port 21a, and a fourth output port 21b. When both the first communication optical module 2a and the second communication optical module 2b include a wavelength coupling unit 22, the first output port 20b is connected to one input terminal of the wavelength coupling unit 22 through the first transmission channel 23, and the second output port 20c is used to connect to the receiving unit 26. The second input port 21d is connected to the output terminal of the wavelength coupling unit 22, and the other input terminal of the wavelength coupling unit 22 is used to connect to the output terminal of the transmitting unit 25. When the first communication device 1 is working normally, in the first switching unit 20, the first input port 20a is connected to the second output port 20c, that is, the first input port 20a and the second output port 20c are in a conducting state. In the second switching unit 21, the second input port 21d is connected to the fourth output port 21b, that is, the second input port 21d and the fourth output port 21b are in a conducting state. The optical signal input to the first communication optical module 2a enters the first switching unit 20 through the first input port 20a, and is sent to the receiving unit 26 through the second output port 20c within the first switching unit 20. The receiving unit 26 converts the optical signal into an electrical signal and outputs it to the first communication device 1. The first communication device 1 outputs the electrical signal to the transmitting unit 25 in the second communication optical module 20b. The transmitting unit 25 converts the electrical signal into an optical signal and transmits the optical signal to the wavelength coupling unit 22 in the second communication optical module 2b. The wavelength coupling unit 22 couples the optical signal to the second input port 21d of the second switching unit 21 in the second communication optical module 2b, and outputs it to the next second communication device through the fourth output port 21b of the second switching unit 21.

[0064] Thus, when the first communication device 1 is working normally, the optical signal input to the second communication optical module 2b enters the first switching unit 20 through the first input port 20a in the second communication optical module 2b, and is sent to the receiving unit 26 through the second output port 20c in the first switching unit 20. The receiving unit 26 converts the optical signal into an electrical signal and outputs it to the first communication device 1. The first communication device 1 outputs the electrical signal to the transmitting unit 25 in the first communication optical module 2a. The transmitting unit 25 converts the electrical signal into an optical signal and transmits the light to the wavelength coupling unit 22 in the first communication optical module 2a. The wavelength coupling unit 22 couples the optical signal to the second input port 21d of the second switching unit 20, and outputs it to the previous second communication device through the fourth output port 21b of the second switching unit 21. This ensures that when the first communication device 1 is working normally, the optical signal can stably pass through the first communication optical module 2a, the first communication device 1, and the second communication optical module 2b.

[0065] When the first communication device 1 is in an abnormal state, in the first switching unit 20, the first input port 20a is connected to the first output port 20b, that is, the first input port 20a and the first output port 20b are conductive. In the second switching unit 21, the second input port 21d is connected to the third output port 21a, that is, the second input port 21d and the third output port 21a are conductive; the third input port 21c is connected to the fourth output port 21b, that is, the third input port 21c and the fourth output port 21b are conductive. An optical signal enters the first switching unit 20 through the first input port 20a of the first switching unit 20 in the first communication optical module 2a. The optical signal is then sent to the first transmission channel 23 through the first output port 20b of the first switching unit 20. The first transmission channel 23 transmits the optical signal to the wavelength coupling unit 22. The wavelength coupling unit 22 couples the optical signal to the second input port 21d of the second switching unit 21 and transmits it through the third output port 21a of the second switching unit 21 to the first channel structure 29 in the second communication optical module 2b. The first channel structure 29 in the second communication optical module 2b guides the optical signal through the second transmission channel 24 to the third input port 21c in the second communication optical module 2b. The optical signal is then output to the next second communication device through the fourth output port 21b of the second switching unit 21 in the second communication optical module 2b. To ensure that when the first communication device is in an abnormal state, the optical signal input to the first communication optical module 2a can bypass the first communication device and be transmitted to the next second communication device, so that the optical signal can continue to be transmitted, and to ensure that the entire network system can still work stably when any of the first communication optical modules is in an abnormal state, thereby improving the stability of the network system.

[0066] Thus, when the first communication device 1 is in an abnormal state, the optical signal enters the first switching unit 20 through the first input port 20a of the first switching unit 20 in the second communication optical module 2b. The optical signal is then sent to the first transmission channel 23 through the first output port 20b of the first switching unit 20. The first transmission channel 23 transmits the optical signal to the wavelength coupling unit 22. The wavelength coupling unit 22 couples the optical signal to the second input port 21d of the second switching unit 21 in the second communication optical module 2b, and transmits it through the third output port 21a of the second switching unit 21 to the first channel structure 29 in the first communication optical module 2a. The first channel structure 29 in the first communication optical module 2a guides the optical signal to the third input port 21c in the first communication optical module 2a through the second transmission channel 24. The optical signal is then output to the next second communication device through the fourth output port 21b of the second switching unit 21 in the first communication optical module 2a. This allows the optical signal to continue transmitting, ensuring that even if any of the first communication optical modules in the entire network system is in an abnormal state, the bidirectional signal in the entire network system can still be transmitted stably, thereby improving the stability of the network system.

[0067] Specifically, the wavelength coupling unit can be an upper waveguide wavelength coupler or an optical fiber waveguide coupler.

[0068] In the above embodiments, the first switching unit 20 in the first communication optical module 2a and the second communication optical module 2b is connected to the receiving unit 26 and the first transmission channel 23, respectively. The second switching unit 21 is connected to the wavelength coupling unit 22 and the second transmission connection 24, respectively. The wavelength coupling unit 22 is connected to the transmitting unit 25 and the first transmission channel 23, respectively. This architecture ensures that when the first communication device 1 connected to the first communication optical module 2a and the second communication optical module 2b is in an abnormal state, the optical signal bypasses the first communication device 1 when passing through the second communication device, thus guaranteeing the transmission of the optical signal to the next second communication device and the previous second communication device. This prevents any abnormal state of the first communication device from affecting the operation of the entire system, improving the stability of the system.

[0069] Reference Figure 2 and Figure 5The first switching unit 20 may include at least a first input port 20a, a first output port 20c, and a second output port 20b. The second switching unit includes a switch body 210 and a second channel structure 211. The switch body 210 includes a first sub-input port 21d1, a third input port 21c, and a fourth output port 21b. The second channel structure 211 includes a second sub-input port 21d2 and a third output port 21a. Both the first communication optical module 2a and the second communication optical module 2b also include a cross-coupling unit 22a. One input port of the cross-coupling unit 22a is connected to the first transmission channel 23, the other input port of the cross-coupling unit 22a is connected to the transmitting unit 25, one output port of the cross-coupling unit 22a is connected to the first sub-input port 21d1, and the other output port of the cross-coupling unit 22a is connected to the second sub-input port 21d2. When the first communication device 1 is working normally, in the first switching unit 20, the first input port 20a is connected to the second output port 20c, that is, the first input port 20a and the second output port 20c are in a conducting state. In the second switching unit 21, the first sub-input port 21d1 is connected to the fourth output port 21b, that is, the first sub-input port 21d1 and the fourth output port 21b are in a conducting state. The optical signal input to the first communication optical module 2a enters the first switching unit 20 through the first input port 20a, and is transmitted to the receiving unit 26 through the second output port 20c within the first switching unit 20. The receiving unit 26 converts the optical signal into an electrical signal and outputs it to the first communication device 1. The first communication device 1 outputs the electrical signal to the transmitting unit 25 in the second communication optical module 2b. The transmitting unit 25 converts the electrical signal into an optical signal and transmits the optical signal to the cross-coupling unit 22a in the second communication optical module 2b. The cross-coupling unit 22a couples the optical signal to the first sub-input port 21d1 of the switch body 210 in the second communication optical module 2b, and outputs it to the next second communication device through the fourth output port 21b of the switch body 210. The cross angle of the cross-coupling unit 22a is 0 to 90 degrees.

[0070] When the first communication device 1 is working normally, the optical signal input to the second communication optical module 2b enters the first switching unit 20 through the first input port 20a in the second communication optical module 2b, and is sent to the receiving unit 26 through the second output port 20c in the first switching unit 20. The receiving unit 26 converts the optical signal into an electrical signal and outputs it to the first communication device 1. The first communication device 1 outputs the electrical signal to the transmitting unit 25 in the first communication optical module. The transmitting unit 25 converts the electrical signal into an optical signal and transmits the optical signal to the cross-coupling unit 22a in the first communication optical module 2a. The cross-coupling unit 22a couples the optical signal to the first sub-input port 21d1 of the switch body 210, and outputs it to the previous second communication device through the fourth output port 21b of the switch body 210, so as to ensure that when the first communication device is working normally, the optical signal can stably pass through the first communication optical module, the first communication device, and the second communication optical module.

[0071] When the first communication device is in an abnormal state, in the first switch unit 20, the first input port 20a is connected to the first output port 20b, that is, the first input port 20a and the first output port 20b are conductive. In the second switch unit 21, the second sub-input port 21d2 of the second channel structure 211 is connected to the third output port 21a, that is, the second sub-input port 21d2 and the third output port 21a are conductive; the third input port 21c of the switch body 210 is connected to the fourth output port 21b, that is, the third input port 21c and the fourth output port 21b are conductive. The optical signal enters the first switching unit 20 through the first input port 20a of the first switching unit 20 in the first communication optical module 2a. The optical signal is sent to the first transmission channel 23 through the first output port 20b of the first switching unit 20. The first transmission channel 23 transmits the optical signal to the cross-coupling unit 22a. The cross-coupling unit 22a couples the optical signal to the second sub-input port 21d2 and transmits it through the third output port 21a of the second channel structure 211 to the first channel structure 29 in the second communication optical module 2b. The first channel structure 29 in the second communication optical module 2b guides the optical signal to the third input port 21c in the second communication optical module 2b. The optical signal is then output to the next second communication device through the fourth output port 21b of the switching body 210 in the second communication optical module 2b. To ensure that when the first communication device is in an abnormal state, the optical signal input to the first communication optical module can bypass the first communication device and be transmitted to the next second communication device, so that the optical signal can continue to be transmitted, and to ensure that the entire network system can still work stably when any of the first communication optical modules in the entire network system is in an abnormal state, thereby improving the stability of the network system.

[0072] When the first communication device is in an abnormal state, the optical signal enters the first switching unit 20 in the second communication optical module 2b through the first input port 20a. The optical signal then passes through the first output port 20b of the first switching unit 20 to the first transmission channel 23. The first transmission channel 23 transmits the optical signal to the cross-coupling unit 22a. The cross-coupling unit 22a couples the optical signal to the second sub-input port 21d2 in the second communication optical module, and transmits it through the third output port 21a in the second channel structure 211 to the first channel structure 29 in the first communication optical module 2a. The first channel structure 29 in the first communication optical module 2a guides the optical signal to the third input port 21c in the first communication optical module 2a. Finally, the optical signal is output through the fourth output port 21b of the switch body 210 in the first communication optical module 2a to the next second communication device. This ensures that the optical signal continues to transmit, guaranteeing that the entire network system can still operate stably even when any of the first communication optical modules is in an abnormal state, thus improving the stability of the network system.

[0073] In the above embodiments, the first switching unit 20 in the first communication optical module 2a and the second communication optical module 2b is connected to the receiving unit 26 and the first transmission channel 23, respectively. The second switching unit 21 includes a switching body 210 and a second channel structure 211. Both the switching body 210 and the second channel structure 211 are connected to the cross-coupling unit 22a. The cross-coupling unit 2a is also connected to the transmitting unit 25 and the first transmission channel 23. The switching body 210 is connected to the second transmission channel 24. This architecture ensures that when the first communication device connected to the first communication optical module 2a and the second communication optical module 2b is in an abnormal state, the optical signal bypasses the first communication device when passing through the second communication device, thus guaranteeing the transmission of the optical signal to the next second communication device and the previous second communication device. This prevents any abnormal state of the first communication device from affecting the operation of the entire system, improving the stability of the system.

[0074] Figure 6 This is a schematic diagram of a communication optical module provided in an embodiment of this application. (Refer to...) Figure 6The communication optical module is used to connect to a first communication device. The communication optical module includes a first switching unit 20, a second switching unit 21, a first channel structure 29, a first transmission channel 23, and a second transmission channel 24. The first transmission channel is connected between the first switching unit 20 and the second switching unit 21, and the second transmission channel 24 is connected between the first channel structure 29 and the second switching unit 21. The first switching unit 20 and the second switching unit 21 are also connected to the first communication device 1. The communication optical module also includes a receiving unit 26 and a transmitting unit 25. The receiving unit 26 is connected between the first switching unit 20 and the first communication device 1, and the transmitting unit 25 is connected between the second switching unit 21 and the first communication device 1. When the first communication device 1 is working normally, the optical signal input to the first switching unit 20 is output to the first communication device 1 through the receiving unit 26, and the transmitting unit 25 converts the signal output by the first communication device into an optical signal and transmits it to the second switching unit. When the first communication device 1 is in an abnormal state, the optical signal input to the first switching unit 20 is transmitted to the second switching unit 21 through the first transmission channel 23, and then to the next communication optical module through the second switching unit 21. Similarly, the optical signal input to the first channel structure is transmitted to the second switching unit 21 through the second transmission channel, and then to the previous communication optical module through the second switching unit 21. In this architecture, when the first communication device 1 is in an abnormal state, the optical signal can bypass the first communication device 1 and be transmitted to other communication optical modules through the first transmission channel 23 and the second transmission channel 24, ensuring stable transmission of the optical signal and thus ensuring stable operation of the network system.

[0075] Figure 7 Another structural schematic diagram of the communication optical module provided in the embodiments of this application; Figure 8 This is another structural schematic diagram of the communication optical module provided in an embodiment of this application. Figure 7 The communication optical module does not include the receiving unit 26 and the transmitting unit 25. The receiving unit 26 and the transmitting unit 25 are photoelectric conversion modules that are independent of the communication optical module and the first communication device 1. Figure 8 The communication optical module includes a receiving unit 26 and a transmitting unit 25. (See reference...) Figure 7 and Figure 8The communication optical module includes a wavelength coupling unit 22, which is connected to a first transmission channel 23, a transmitting unit 25, and a second switching unit 21. When the first communication device 1 is in an abnormal state, the optical signal output from the first transmission channel 23 is coupled to the second switching unit 21 through the wavelength coupling unit 22 to ensure that the optical signal can be transmitted to the second switching unit 21. When the first communication device 1 is working normally, the optical signal emitted by the transmitting unit 25 is coupled to the second switching unit 21 through the wavelength coupling unit 22 to ensure that the optical signal transmitted by the transmitting unit 25 can be transmitted to the second switching unit 21.

[0076] Figure 9 Another structural schematic diagram of the communication optical module provided in the embodiments of this application; Figure 10 Another structural schematic diagram of the communication optical module provided in this application embodiment. Figure 9 The communication optical module does not include the receiving unit 26 and the transmitting unit 25. The receiving unit 26 and the transmitting unit 25 are photoelectric conversion modules that are independent of the communication optical module and the first communication device 1. Figure 10 The communication optical module includes a receiving unit 26 and a transmitting unit 25. (See reference...) Figure 9 and Figure 10 The communication optical module also includes a cross-coupling unit 22a. The second switching unit includes a switch body 210 and a second channel structure 211. The cross-coupling unit 22a is connected to the second channel structure 211, the first transmission channel 23, the switch body 210, and the transmitting unit 25, respectively. The switch body 210 and the first channel structure 23 are connected through the second transmission channel 24. When the first communication device is malfunctioning, the cross-coupling unit 22a couples the light transmitted through the first transmission channel 23 to the second channel structure 211, and the second channel structure 211 outputs the optical signal to the communication optical module to ensure stable transmission of the optical signal. When the first communication device is working normally, the optical signal transmitted through the transmitting unit 25 is coupled to the switch body 211 and output to the communication optical module through the switch body 210. Figure 5 This is a schematic diagram of a communication optical module provided in an embodiment of this application. The first communication optical module may further include a power supply unit 31, which can be connected to the first switch unit 20, the second switch unit 21, the receiving unit 26 and the transmitting unit 25 respectively, and provides power to the first switch unit 20, the second switch unit 21, the receiving unit 26 and the transmitting unit 25.

[0077] Figure 11 This is another structural schematic diagram of the communication optical module provided in an embodiment of this application. (Refer to...) Figure 11The communication optical module may also include a power supply unit 31, which can be connected to the first switching unit 20, the second switching unit 21, the receiving unit 26, and the transmitting unit 25 respectively, and provides power to these units. Specifically, Q1 in the power supply unit 31 is connected to Q1 in the second switching unit 21, Q2 in the power supply unit 31 is connected to Q2 in the transmitting unit 25, and Q3 in the power supply unit 31 is connected to Q3 in the controller 30. The communication optical module may also include a controller 30, which can be connected to the power supply unit 31, the first switching unit 20, and the second switching unit 21 respectively. Q4 in the controller 30 is connected to Q4 in the first switching unit 20, and Q5 in the controller 30 is connected to Q5 in the second switching unit 21. The controller 30 can receive information about the operating status of the first communication device and determine whether the first communication device is working properly. Based on its determination, the controller 30 controls the optical signals transmitted through the first switching unit 20 and the second switching unit 21 to be output through different ports, thereby controlling the transmission path of the optical signals. The first switching unit 20 and the corresponding receiving unit 26 are connected via a first coupling unit 28 to ensure that the optical signal output by the first switching unit 20 can be output to the receiving unit 26. The transmitting unit 25 and the wavelength coupling unit 22 are connected via a second coupling unit 27. In some other embodiments, the transmitting unit 25 and the cross-coupling unit 22a are connected via the second coupling unit 27. This ensures that the optical signal output by the transmitting unit 25 can be output to the wavelength coupling unit 22 or the cross-coupling unit 22a. The first coupling unit and the second coupling unit can be one of an optical fiber, spatial light, or waveguide mode converter.

[0078] Figure 12 Another structural schematic diagram of the communication optical module provided in the embodiments of this application; Figure 13 Another structural schematic diagram of the communication optical module provided in the embodiments of this application; Figure 14 for Figure 13 A schematic diagram of the interconnection between two communication optical modules; Figure 14 This can also be understood as another structural diagram of the second communication device; Figure 15 This is another structural schematic diagram of the communication optical module provided in an embodiment of this application. (Refer to...) Figure 12 , Figure 13 , Figure 14 and Figure 15The first switching unit 20 may include a first optical wave coupling part 200, a second optical wave coupling part 201, a first interconnecting arm 202, and a second interconnecting arm 203. One end of the first interconnecting arm 202 is connected to the first optical wave coupling part 200, and the other end of the first interconnecting arm 202 is connected to the second optical wave coupling part 201. One end of the second interconnecting arm 203 is connected to the first optical wave coupling part, and the other end of the second interconnecting arm 203 is connected to the second optical wave coupling part. The first optical wave coupling part 200 is used to connect to the first input port 20a, and the second optical wave coupling part 201 is connected to the first output port 20b and the second output port 20c. The first interconnecting arm 202 is provided with a first switching electrode 205, and the second interconnecting arm 203 is provided with a second switching electrode 206.

[0079] When an optical signal enters the first switching unit 20 through the first input port 20a, the controller can drive the opening and closing of the first switching electrode 205 and the second switching electrode 206 according to the operating state of the first communication device. When the first communication device is in an abnormal state, the controller controls the second switching electrode 206 on the second interconnecting arm 203 to be in the closed state, and controls the first switching electrode 205 on the first interconnecting arm 202 to be in the open state, so that the optical signal enters through the first input port 20a of the first switching unit 20 and is output from the first output port 20c of the first switching unit 20. If the first communication device is working normally, the controller controls the second switching electrode 206 on the second interconnecting arm 203 to be in the open state, and controls the first switching electrode 205 on the first interconnecting arm 202 to be in the closed state, so that the optical signal enters through the first input port 20a of the first switching unit and is output from the second output port 20b of the first switching unit 20.

[0080] In the above embodiments, the first optical wave coupling unit is an interference coupling structure or a direct coupling structure, and the second optical wave coupling unit is an interference coupling structure or a direct coupling structure. The second switching unit has the same structure as the first switching unit, and will not be described again here.

[0081] This application also provides a method for transmitting optical signals in a communication optical module, wherein the communication optical module is either the first communication optical module or the second communication optical module in any of the above embodiments; the method includes:

[0082] Determine the working status of the first communication device;

[0083] The first communication device was determined to be in an abnormal state.

[0084] The optical signal input to the first switching unit is transmitted to the second switching unit through the first transmission channel, and the optical signal input to the first channel structure is transmitted to the second switching unit through the second transmission channel.

[0085] It is confirmed that the first communication device is in normal working condition;

[0086] The optical signal input to the first switching unit is transmitted to the receiving unit, and the optical signal transmitted by the transmitting unit is transmitted to the second switching unit; wherein, the communication optical module includes: a first switching unit, a second switching unit, a first channel structure, a first transmission channel, and a second transmission channel; the first transmission channel is connected between the first switching unit and the second switching unit, and the second transmission channel is connected between the first channel structure and the second switching unit; the first switching unit and the second switching unit are also connected to a first communication device; the receiving unit is connected between the first switching unit and the first communication device, and the transmitting unit is connected between the second switching unit and the first communication device.

[0087] In this method, when the first communication device is detected to be in an abnormal state, the optical signal input to the first switching unit can be transmitted to the second switching unit through the first transmission channel, and then output to the next communication optical module through the second switching unit. Correspondingly, the optical signal input to the first channel structure is transmitted to the second switching unit through the second transmission channel, and then output to the next communication optical module through the second switching unit. This ensures that the optical signal transmitted through this communication optical module can be stably transmitted to other communication optical modules, so that when the first communication device connected to the communication optical module is in an abnormal state, the optical signals between the various communication optical modules can also be stably transmitted. When the first communication device is detected to be in a normal working state, the optical signal input to the first switching unit is transmitted to the receiving unit. The receiving unit can convert the optical signal into an electrical signal and output the electrical signal to the first communication device. The transmitting unit converts the electrical signal output by the first communication device into an optical signal and outputs it to the second switching unit, ensuring stable transmission of the photoelectric signal.

[0088] This application also provides a method for transmitting optical signals in a second communication device, the method comprising:

[0089] The first communication device was determined to be in an abnormal state.

[0090] The optical signal input to the first switching unit in the first communication optical module is transmitted to the second switching unit in the first communication optical module through the first transmission channel in the first communication optical module. The second switching unit in the first communication optical module transmits the received optical signal to the first channel structure in the second communication optical module. The optical signal input to the first channel structure in the second communication optical module is transmitted to the second switching unit in the second communication optical module through the second transmission channel in the second communication optical module.

[0091] In this method, when the first communication device is in an abnormal state, the optical signal input to the first switching unit in the first communication optical module can be transmitted through the first transmission channel in the first communication optical module to the second switching unit in the first communication optical module. The second switching unit can transmit the received optical signal to the first channel structure in the second communication optical module, and output it through the second transmission channel in the second communication optical module to the second switching unit in the second communication optical module. The second switching unit can then output the optical signal to the next second communication device, ensuring that the optical signal can bypass the first communication device in an abnormal state and guaranteeing stable transmission of the optical signal. The optical signal input to the first switching unit in the second communication optical module can be transmitted through the first transmission channel in the second communication optical module to the second switching unit in the second communication optical module, and then through the second switching unit to the first channel structure in the first communication optical module, and through the second transmission channel in the first communication optical module to the second switching unit in the first communication optical module, and finally through the second switching unit to another second communication device. This architecture ensures that bidirectional optical signal communication can still be performed in the second communication device even when the first communication device is in an abnormal state.

[0092] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope and intent of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and variations.

Claims

1. A communication optical module, the communication optical module being used to connect to a first communication device, characterized in that, The communication optical module includes: a first switching unit, a second switching unit, a first channel structure, a first transmission channel, and a second transmission channel; The first transmission channel is connected between the first switching unit and the second switching unit, and the second transmission channel is connected between the first channel structure and the second switching unit; the first switching unit and the second switching unit are also connected to the first communication device; When the first communication device is in an abnormal state, the optical signal input to the first switching unit is transmitted to the second switching unit through the first transmission channel, and the optical signal input to the first channel structure is transmitted to the second switching unit through the second transmission channel.

2. The communication optical module as described in claim 1, characterized in that, The communication optical module further includes a receiving unit and a transmitting unit. The receiving unit is connected between the first switching unit and the first communication device, and the transmitting unit is connected between the second switching unit and the first communication device. When the first communication device is working normally, the optical signal input to the first switching unit is transmitted to the first communication device through the receiving unit, and the transmitting unit converts the electrical signal output by the first communication device into an optical signal and transmits it to the second switching unit.

3. The communication optical module as described in claim 2, characterized in that, The communication optical module further includes a wavelength coupling unit, which is connected to the first transmission channel, the transmitting unit and the second switching unit respectively. The wavelength coupling unit is used to: couple the optical signal transmitted through the first transmission channel to the second switching unit when the first communication device is malfunctioning; and couple the optical signal transmitted by the transmitting unit to the second switching unit when the first communication device is working normally.

4. The communication optical module as described in claim 2, characterized in that, The communication optical module further includes a cross-coupling unit, and the second switching unit includes a switching body and a second channel structure; the cross-coupling unit is connected to the second channel structure, the switching body, the transmitting unit and the first transmission channel respectively, and the switching body is connected to the second transmission channel; The cross-coupling unit is used to: couple the optical signal transmitted through the first transmission channel to the second channel structure when the first communication device is in an abnormal state; and couple the optical signal transmitted by the transmitting unit to the switch body when the first communication device is working normally.

5. The communication optical module as described in claim 4, characterized in that, At least one of the first channel structure and the second channel structure includes a waveguide structure, an optical fiber structure, or a light guide structure.

6. A second communication device, characterized in that, The system includes a first communication optical module and a second communication optical module. Each of the first and second communication optical modules includes a first switching unit, a second switching unit, a first channel structure, a first transmission channel, and a second transmission channel. In either the first or second communication optical module, the first transmission channel is connected between the first and second switching units, and the second transmission channel is connected between the first channel structure and the second switching unit. The first and second switching units are also connected to a first communication device. The second switching unit in the first communication optical module is connected to the first channel structure in the second communication optical module, and the first channel structure in the first communication optical module is connected to the second switching unit in the second communication optical module; When the first communication device is in an abnormal state, the optical signal input to the first switching unit in the first communication optical module is transmitted to the second switching unit in the first communication optical module through the first transmission channel in the first communication optical module, and the second switching unit in the first communication optical module transmits the received optical signal to the first channel structure in the second communication optical module. The optical signal input to the first channel structure in the second communication optical module is transmitted to the second switching unit in the second communication optical module through the second transmission channel in the second communication optical module.

7. A network system, characterized in that, include: The first communication device and the second communication device as described in claim 6, wherein the first communication device is connected to the second communication device.

8. A method for transmitting optical signals in a communication optical module, characterized in that, include: The first communication device was determined to be in an abnormal state. The optical signal input to the first switching unit is transmitted to the second switching unit through the first transmission channel, and the optical signal input to the first channel structure is transmitted to the second switching unit through the second transmission channel; The communication optical module includes: a first switching unit, a second switching unit, a first channel structure, a first transmission channel, and a second transmission channel; the first transmission channel is connected between the first switching unit and the second switching unit, and the second transmission channel is connected between the first channel structure and the second switching unit; the first switching unit and the second switching unit are also connected to the first communication device.

9. The transmission method as described in claim 8, characterized in that, Also includes: It is confirmed that the first communication device is in normal working condition; The optical signal input to the first switching unit is transmitted to the receiving unit, and the optical signal input to the transmitting unit is transmitted to the second switching unit; The receiving unit is connected between the first switching unit and the first communication device, and the transmitting unit is connected between the second switching unit and the first communication device.

10. A method for transmitting optical signals in the second communication device as claimed in claim 6, characterized in that, include: The first communication device was determined to be in an abnormal state. The optical signal input to the first switching unit in the first communication optical module is transmitted to the second switching unit in the first communication optical module through the first transmission channel in the first communication optical module, and the second switching unit in the first communication optical module transmits the received optical signal to the first channel structure in the second communication optical module. The optical signal input to the first channel structure in the second communication optical module is transmitted to the second switching unit in the second communication optical module through the second transmission channel in the second communication optical module.

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