Communication transmission device and line fault processing method

Abstract

The application discloses a communication transmission device and a line fault processing method. The device comprises a line module connected with a communication cable, used for generating a cable alarm signal; a communication control module, used for generating a first switching signal and a protection starting signal; a communication protection module, used for establishing a virtual private network channel with a communication transmission device at the other end through a wireless communication module; and a branch module, used for disconnecting the line module from a communication object and connecting the communication protection module with the communication object in response to the first switching signal. The communication control module is further used for supplying power to the branch module when the device is powered off, and generating the first switching signal, the protection starting signal and a first power supply alarm signal, or a second power supply alarm signal according to the data transmission state of the branch module. The embodiment can switch the wireless channel to maintain the dedicated line service coherent use when the cable fails, improve the user experience, and identify the abnormal power-off causes to guide the maintenance personnel to handle the abnormal power-off.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and in particular relates to a communication transmission equipment and a method for handling line faults. Background Technology

[0002] Currently, with the continuous development of communication technology, leased line products can provide end-to-end direct data channels between the headquarters and branches of government and enterprise customers based on the operator's transmission network, or provide data transmission services for customers to access cloud and Internet resources.

[0003] Existing leased line implementation methods typically combine communication optical cables with customer-side communication transmission equipment. This leased line method has high requirements for the stability of the optical cable and cannot maintain operation when the customer-side loses power.

[0004] The main reasons for anomalies in the above-mentioned dedicated line method include optical cable failures in the access section caused by municipal, water, power and other construction projects, and power outages on the customer side after get off work, which cause communication transmission equipment to malfunction. Of these two reasons, optical cable failures require timely maintenance by maintenance personnel, while power outages on the customer side do not require maintenance personnel to handle. Because the two reasons are difficult to distinguish quickly, relevant personnel consume a lot of time and communication costs. Summary of the Invention

[0005] This application provides a method for handling faults in communication transmission equipment and lines, which can improve the technical defects in related technologies that cannot identify the causes of abnormalities, thus consuming a lot of time and communication costs.

[0006] In a first aspect, embodiments of this application provide a communication transmission device, including:

[0007] The line module connects to the communication cable and is used to generate a cable alarm signal in the event of a communication cable failure.

[0008] The main control module, connected to the line module, is used to generate an enable signal in response to cable alarm signals;

[0009] The communication control module, connected to the main control module, is used to generate the first switching signal and the protection start signal in response to the start signal;

[0010] The communication protection module, connected to the communication control module, includes a wireless communication module for responding to protection activation signals and establishing a virtual private network channel with the communication transmission equipment at the other end through the wireless communication module.

[0011] The branch module is connected to the line module, the communication object, and the communication protection module. It is used to respond to the first switching signal to disconnect the line module from the communication object and connect the communication protection module to the communication object.

[0012] The communication control module is also used to temporarily supply power to the branch module when a power failure is detected in the device, and to generate a first switching signal, a protection start signal and a first power supply alarm signal according to the data transmission status of the branch module, or to generate a second power supply alarm signal.

[0013] The communication protection module is also used to report the first power supply alarm signal or the second power supply alarm signal.

[0014] In some embodiments, the communication control module is also used to report cable fault signals through the main control module when the communication protection module establishes a virtual private network channel with the communication transmission equipment at the other end.

[0015] In some embodiments, the line module is also configured to generate a recovery signal in the event of a fault recovery in the communication cable;

[0016] The main control module is used to generate a shutdown signal in response to a recovery signal;

[0017] The communication control module is also used to generate a second switching signal and a protection end signal in response to the shutdown signal;

[0018] The branch module is used to respond to the second switching signal to connect the line module to the communication object and disconnect the communication protection module from the communication object;

[0019] The communication protection module is used to close the virtual private network channel established with the communication transmission equipment on the other end in response to the protection termination signal.

[0020] In some embodiments, the communication control module is also used to report a fault clearing signal through the main control module when the line module establishes a wired link connection with the communication transmission equipment at the other end via a communication cable.

[0021] In some embodiments, the communication control module is further configured to generate a second switching signal and a protection end signal when the device is detected to be powered on;

[0022] The branch module is used to respond to the second switching signal to connect the line module to the communication object and disconnect the communication protection module from the communication object;

[0023] The communication protection module is used to close the virtual private network channel established with the communication transmission equipment on the other end in response to the protection termination signal.

[0024] In some embodiments, the communication control module is also used to report a power restoration signal through the communication protection module when the line module establishes a wired link connection with the communication transmission equipment at the other end via a communication cable.

[0025] Secondly, embodiments of this application provide a line fault handling method, applied to the communication transmission equipment of the first aspect, the line fault handling method including:

[0026] If a communication cable fault is detected, the line module will be disconnected from the communication object, and the communication protection module will be connected to the communication object.

[0027] Send a VPN enable command to the communication transmission equipment at the other end, and receive a VPN enable response command returned by the communication transmission equipment at the other end, in order to establish a VPN channel;

[0028] When communicating with the communication transmission equipment at the other end via a virtual private network channel, report cable fault signals.

[0029] In some embodiments, after reporting a cable fault signal when communicating with the communication transmission equipment at the other end via a virtual private network channel, the method further includes:

[0030] Upon detecting that the communication cable fault has been resolved, the line module is connected to the communication object, and the communication protection module is disconnected from the communication object.

[0031] Send a VPN shutdown command to the communication transmission equipment at the other end, and receive a VPN shutdown response command returned by the communication transmission equipment at the other end, so as to shut down the VPN channel;

[0032] When communicating with the communication transmission equipment at the other end via a communication cable, a fault clearing signal is reported.

[0033] In some embodiments, the communication transmission equipment is connected to the user-side data communication equipment, and the line fault handling method further includes:

[0034] Power is supplied to the branch module when a power failure is detected in the device;

[0035] When the branch module transmits data, a virtual private network channel is established with the communication transmission equipment at the other end, and a first power supply alarm signal is reported; wherein, the first power supply alarm signal is used to prompt maintenance personnel to perform maintenance on the communication transmission equipment;

[0036] If the branch module does not transmit data, a second power supply alarm signal is reported; the second power supply alarm signal is used to prompt maintenance personnel to disconnect the power on the user side.

[0037] In some embodiments, when the tributary module transmits data, after establishing a virtual private network channel with the communication transmission device at the other end and reporting the first power supply alarm signal, the method further includes:

[0038] When the device is detected to be powered on, the line module is connected to the communication object, and the communication protection module is disconnected from the communication object;

[0039] Send a VPN shutdown command to the communication transmission equipment at the other end, and receive a VPN shutdown response command returned by the communication transmission equipment at the other end, so as to shut down the VPN channel;

[0040] When communicating with the communication transmission equipment on the other end via a communication cable, a power restoration signal is reported.

[0041] Compared with existing technologies, the communication transmission equipment and line fault handling method provided in this application embodiment can switch the wired transmission channel to a wireless transmission channel when a communication cable fails. It also establishes a virtual private network (VPN) channel with the peer communication transmission equipment through the wireless communication module in the communication protection module. This VPN channel enables a dedicated line connection between the two communication objects, ensuring uninterrupted dedicated line service and improving user experience. Furthermore, when a power outage occurs, the method can detect whether the power outage is limited to the communication transmission equipment or involves a complete power outage on the user side, and report different power supply alarm signals accordingly. This allows maintenance personnel to respond promptly to power outages in the communication transmission equipment, eliminating the need for them to handle complete power outages on the user side. This effectively identifies power outage anomalies, guides maintenance personnel in precise handling, and reduces labor, time, and communication costs. Attached Figure Description

[0042] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the 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.

[0043] Figure 1 This is a schematic diagram of the module structure of a communication transmission device provided in an embodiment of this application;

[0044] Figure 2 This is a schematic flowchart of a line fault handling method provided in an embodiment of this application;

[0045] Figure 3 This is a flowchart illustrating a line fault handling method provided in another embodiment of this application;

[0046] Figure 4 This is a flowchart illustrating a line fault handling method provided in another embodiment of this application;

[0047] Figure 5This is a schematic flowchart of a line fault handling method provided in another embodiment of this application.

[0048] In the attached image:

[0049] 100. Communication transmission equipment; 10. Line module; 20. Main control module; 30. Communication control module; 40. Communication protection module; 50. Branch module; 60. Communication object; 61. User-side data communication equipment; 62. Transmission ring network. Detailed Implementation

[0050] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0052] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The embodiments will now be described in detail with reference to the accompanying drawings.

[0053] Currently, with the continuous development of communication technology, leased line products can provide end-to-end direct data channels between the headquarters and branches of government and enterprise customers based on the operator's transmission network, or provide data transmission services for customers to access cloud and Internet resources.

[0054] Existing leased line implementation methods typically combine communication optical cables with customer-side communication transmission equipment. This leased line method has high requirements for the stability of the optical cable and cannot maintain operation when the customer-side loses power.

[0055] The main reasons for anomalies in the above-mentioned dedicated line method include optical cable failures in the access section caused by municipal, water, power and other construction projects, and power outages on the customer side after get off work, which cause communication transmission equipment to malfunction. Of these two reasons, optical cable failures require timely maintenance by maintenance personnel, while power outages on the customer side do not require maintenance personnel to handle. Because the two reasons are difficult to distinguish quickly, relevant personnel consume a lot of time and communication costs.

[0056] To address the aforementioned technical problems, embodiments of this application provide a communication transmission device and a method for handling line faults. The communication transmission device provided in this application embodiment will be described below first.

[0057] Figure 1 A schematic diagram of a communication transmission device according to an embodiment of this application is shown. The communication transmission device 100 may include a line module 10, a main control module 20, a communication control module 30, a communication protection module 40, and a branch module 50.

[0058] The line module 10 can be connected to a communication cable, with two communication transmission devices 100 connected to each end of the cable. One communication transmission device 100 is connected to a user-side data communication device 61, and the other communication transmission device 100 is connected to a transmission ring network 62. The user-side data communication device 61 can establish a dedicated line connection with the transmission ring network 62 through the two communication transmission devices 100 and the communication cable.

[0059] The communication transmission device 100 used in this embodiment can be either a communication transmission device 100 connected to the transmission ring network 62 or a communication transmission device 100 connected to the user-side data communication device 61.

[0060] The line module 10 can generate a cable alarm signal in the event of a communication cable failure. For example, the line module 10 can identify a communication cable failure when no optical signal is received and generate an R_LOS alarm signal as an alarm signal for the cable failure.

[0061] The main control module 20 can be connected to the line module 10. When the main control module 20 receives the cable alarm signal sent by the line module 10, it can generate an enable signal to enable the protection mode when the communication cable fails.

[0062] The communication control module 30 can be connected to the main control module 20, and when it receives an enable signal, it generates a first switching signal and a protection start signal in response to the enable signal.

[0063] The communication protection module 40 is connected to the communication control module 30. The communication protection module 40 may include a wireless communication module. When the communication protection module 40 receives a protection start signal, it can respond to the protection start signal and establish a virtual private network (VPN) channel with the communication transmission device 100 at the other end through the wireless communication module.

[0064] As an optional implementation, the communication control module 30 can be a DNCM (Double Network Control Module), and the communication protection module 40 can be an SHPM (Self-Healing Protection Module). The wireless communication module included in the communication protection module 40 can be a 5G wireless communication module, or other modules or chips capable of wireless communication. Taking a 5G wireless communication module as an example, when paired with a 5G SIM card, it can realize wireless data transmission based on the 5G network, while being backward compatible with 4G. When the 5G signal is insufficient, the 4G network can be activated.

[0065] Both communication transmission devices 100 connected to the two ends of the communication cable include a communication protection module 40. These two communication protection modules 40 can establish a virtual private network (VPN) channel based on a 5G wireless communication module. For example, after receiving a protection start signal from the communication control module 30 connected to it, one of the communication protection modules 40 can enter a protection switching state and initiate a VPN activation command via its 5G wireless communication module. Upon receiving the VPN activation command, the 5G wireless communication module of the other communication protection module 40 can quickly respond with a VPN response command. Based on pre-set VPN parameters, the two 5G wireless communication modules can establish a VPN channel. Specifically, after receiving the VPN activation command, the 5G wireless communication module can return a VPN response command within 5ms, and the two 5G wireless communication modules can establish a 5G-based VPN channel within 10ms.

[0066] The branch module 50 can be connected to the line module 10, the communication object 60, and the communication protection module 40. When the first switching signal sent by the communication control module 30 is not received, the branch module 50 can connect the line module 10 to the communication object 60 and disconnect the communication protection module 40 from the communication object 60. At this time, the communication object 60 connected to the communication transmission device 100 is connected to the communication object 60 connected to another communication transmission device 100 through a communication cable. That is, the two communication objects 60 are connected by a dedicated line through a wired transmission channel.

[0067] The two communication objects 60 mentioned above are the user-side data communication device 61 and the transmission ring network 62.

[0068] When the branch module 50 receives the first switching signal, it can respond to the first switching signal by disconnecting the line module 10 from the communication object 60 and connecting the communication protection module 40 to the communication object 60. This is equivalent to closing the wired transmission channel and opening the wireless transmission channel.

[0069] Taking the communication target 60 connected to the communication transmission device 100 in this embodiment as the user-side data communication device 61 as an example, after the wireless transmission channel is opened, the data that the user-side data communication device 61 needs to send can be transmitted to the communication protection module 40 through the tributary module 50, and then sent to the wireless communication module of the communication protection module 40 of the peer communication transmission device 100 through the wireless communication module of the communication protection module 40, and then enter the transmission ring network 62 through the tributary module 50 of the peer communication transmission device 100. Correspondingly, the data sent by the transmission ring network 62 can be sent to the communication protection module 40 of the local communication transmission device 100 in sequence through the tributary module 50 and the communication protection module 40 of the peer communication transmission device 100, and then sent to the user-side data communication device 61 through the tributary module 50.

[0070] In the above-described embodiment, in the event of a fault or blockage in the communication cable connected to the communication transmission device 100, a wireless virtual private network channel is established through the communication protection modules 40 of the two communication transmission devices 100 to realize a dedicated line connection between the user-side data communication device 61 and the transmission ring network 62.

[0071] The communication control module 30 can also detect the power failure when the device is powered off and provide temporary power to the branch module 50.

[0072] The communication control module 30 and the communication protection module 40 are equipped with large capacitors, which can provide temporary power supply when the equipment is powered off, so as to realize the delayed power-off function. The communication control module 30 can also provide temporary power supply to the branch module 50 when the equipment is powered off.

[0073] During the process of temporarily powering the branch module 50, the communication control module 30 can acquire data from the branch module 50 to determine the data transmission status of the branch module 50.

[0074] If the port of the branch module 50 can transmit data, it indicates that the user-side data communication device 61 has not experienced a power outage, but rather that the power supply line of the communication transmission device 100 has malfunctioned, causing the communication transmission device 100 to lose power. At this time, the communication control module 30 can generate a first switching signal, a protection start signal, and a first power supply alarm signal.

[0075] Similar to the implementation method for communication cable failure described above, the communication protection module 40 can switch the communication connection between the communication transmission device 100 and the peer communication transmission device 100 from a wired connection to a wireless connection based on the protection start signal. The branch module 50 can close the wired transmission channel and open the wireless transmission channel based on the first switching signal. At this time, the branch module 50, the communication control module 30 and the communication protection module 40 are in a temporary power supply state. The communication protection module 40 can report the first power supply alarm signal so that the relevant maintenance personnel can deal with the power outage problem of the communication transmission device 100 in a timely manner.

[0076] If there is no data transmission at the port of tributary module 50, it indicates that the user-side data communication equipment 61 has also lost power. This anomaly is usually caused by the customer cutting off power to the equipment room. In this case, the communication control module 30 can generate a second power supply alarm signal. Under temporary power supply conditions, the communication protection module 40 can report the second power supply alarm signal. After receiving the second power supply alarm signal, maintenance personnel can determine that the power outage is caused by a power outage on the user side and no action is required.

[0077] In this embodiment, when a communication cable fails, the communication control module 30, communication protection module 40, and branch module 50 can switch the wired transmission channel to a wireless transmission channel. A virtual private network (VPN) channel is established with the peer communication transmission device 100 via the wireless communication module in the communication protection module 40. This VPN channel enables a dedicated line connection between the two communication objects 60, ensuring uninterrupted dedicated line service and improving the user experience. Furthermore, when a power outage occurs, the system can detect whether the power outage is limited to the communication transmission device 100 or involves a complete power outage on the user side, and report different power supply alarm signals. This allows maintenance personnel to respond promptly to power outages on the communication transmission device 100, eliminating the need for a full power outage response on the user side. This effectively identifies power outage anomalies, guides maintenance personnel in precise handling, and reduces labor, time, and communication costs.

[0078] In some embodiments, the communication control module 30 can also report cable fault signals through the main control module 20 when the communication protection module 40 establishes a virtual private network channel with the communication transmission device 100 at the other end, so as to guide maintenance personnel to handle the faults of the communication cable.

[0079] The aforementioned cable fault signal can be an OCB alarm signal.

[0080] It should be noted that in the above embodiments, regardless of whether the communication optical cable experiences a dual-fiber total blockage abnormality, or a single-fiber fault or poor quality scenario, the wired transmission channel can be switched to a wireless transmission channel in a timely manner to ensure that the leased line service is not affected by the fault and to ensure the continuous use of the service.

[0081] In a dual-fiber fully blocked scenario, neither of the communication transmission devices 100 at both ends can receive the optical signal. The phenomenon is that both communication transmission devices 100 at both ends report a cable fault signal, which can be an R_LOS alarm signal.

[0082] When a single fiber core failure or quality exceeding the threshold occurs in a communication cable, taking the communication transmission device 100 connected to the user-side data communication device 61 as an example, its line module 10 cannot receive optical signals. The communication transmission device can report cable alarm signals, such as R_LOS alarm signals or input optical power (dBm) exceeding the limit alarm signals.

[0083] In some embodiments, the line module 10 can receive an optical signal and determine that the fault has been recovered when recovering from a dual-fiber total resistance abnormality, a single-fiber fault, or a quality difference abnormality. At this time, the line module 10 can generate a recovery signal.

[0084] When the main control module 20 receives a recovery signal, it can generate a shutdown signal in response to the recovery signal.

[0085] The communication control module 30 can respond to the shutdown signal and generate a second switching signal and a protection end signal.

[0086] When the communication protection module 40 receives the protection termination signal, it can respond to the protection termination signal and close the virtual private network channel established with the communication transmission device 100 at the other end.

[0087] When the branch module 50 receives the second switching signal, it can connect the line module 10 to the communication object 60 and disconnect the communication protection module 40 from the communication object 60. This is equivalent to closing the wireless transmission channel and opening the wired transmission channel.

[0088] For the wireless communication module in the communication protection module 40, a VPN shutdown command can be initiated based on the protection end signal. The wireless communication module in the peer communication transmission device 100 can respond to the VPN shutdown command and return a VPN shutdown response command. The two wireless communication modules can then shut down the virtual private network channel.

[0089] After closing the wireless transmission channel and reopening the wired transmission channel, the data that the user-side data communication device 61 needs to send can be transmitted to the peer communication transmission device 100 via the communication cable through the tributary module 50 and the line module 10, and then transmitted to the transmission ring network 62 via the line module 10 and the tributary module 50 of the peer communication transmission device 100. Correspondingly, the data sent by the transmission ring network 62 can also be transmitted to the user-side data communication device 61 through the above-mentioned channels.

[0090] In some embodiments, the communication control module 30 can also report a fault clearing signal through the main control module 20 when establishing a wired link connection with the communication transmission device 100 at the other end via a communication cable after closing the wireless transmission channel and reopening the wired transmission channel, so as to indicate to maintenance personnel that the fault has been resolved.

[0091] In some embodiments, when the device receives a call, the communication control module 30 can also identify the device's power-on status, i.e., detect that the device is powered on.

[0092] When the device is powered on, the line module 10 of the communication transmission device 100 can receive the optical signal transmitted by the communication cable. At this time, the main control module 20 can generate a recovery signal, and the communication control module 30 can generate a second switching signal and a protection end signal based on the recovery signal.

[0093] Similar to the above implementation, the branch module 50 can respond to the second switching signal to connect the line module 10 to the communication target 60 and disconnect the communication protection module 40 from the communication target 60, that is, switch the wireless transmission channel to a wired transmission channel. The communication protection module 40 can respond to the protection end signal to close the virtual private network channel established with the communication transmission device 100 at the other end.

[0094] In some embodiments, after the device is powered on again, and the line module 10 establishes a wired link connection with the communication transmission device 100 at the other end via a communication cable, the communication control module 30 can report a power restoration signal through the communication protection module 40 so that maintenance personnel are aware that the power supply abnormality problem has been resolved.

[0095] As an optional implementation, the aforementioned communication transmission device 100 may be a PTN (Packet Transport Network) device, an OTN (Optical Transport Network) device, or an SPN (Slicing Packet Network) device.

[0096] This application also provides a line fault handling method, applied to the communication transmission equipment described in the above embodiments. Figure 2A schematic flowchart of a line fault handling method according to an embodiment of this application is shown. The method may include the following steps:

[0097] S110, in the event of a detected communication cable fault, disconnect the line module from the communication object and connect the communication protection module to the communication object;

[0098] S120: Send a VPN activation command to the communication transmission equipment at the other end and receive a VPN activation response command returned by the communication transmission equipment at the other end to establish a VPN channel.

[0099] S130 reports a cable fault signal when communicating with the communication transmission equipment at the other end via a virtual private network channel.

[0100] In this embodiment, the application object is one of two communication transmission devices connected between the user-side data communication device and the transmission ring network.

[0101] In this embodiment, when a communication cable fails, the communication transmission device can disconnect the line module from the communication object and connect the communication protection module to the communication object, thereby shutting down the wired transmission channel and opening the wireless transmission channel. By sending a virtual private network (VPN) shutdown command to the peer communication transmission device, a wireless VPN channel can be established with the peer communication transmission device. This allows the two communication objects connected to the two communication transmission devices to continue their leased line connection through the VPN channel, ensuring uninterrupted leased line service and improving the user experience.

[0102] In S110, the communication transmission equipment can determine that a fiber optic cable has failed when the line module cannot receive an optical signal. Upon detecting the failure, it disconnects the line module from the communication target and connects the communication protection module to the communication target. This is equivalent to shutting down the wired transmission channel and opening the wireless transmission channel.

[0103] In S120, the communication transmission device can send a VPN activation command to the peer communication transmission device through the wireless communication module in the communication protection module. The peer communication transmission device can return a VPN activation response command through the wireless communication module in the communication protection module. The two wireless communication modules can establish a VPN channel according to pre-set VPN parameters.

[0104] In S130, when the user-side data communication equipment and the transmission ring network establish a virtual private network channel through the wireless communication module to achieve a leased line connection, the communication transmission equipment can report cable fault signals to guide maintenance personnel in handling communication cable faults.

[0105] It should be noted that before a communication cable failure occurs, the communication transmission equipment is wired to the communication equipment on the other end through the line module. The user-side data communication equipment and the transmission ring network connected to the two communication transmission equipment can achieve a dedicated line connection.

[0106] After a communication cable failure, the communication transmission equipment wirelessly connects with the communication equipment at the other end through the communication protection module. The wireless communication module in the communication protection module can establish a virtual private network channel with the communication protection module at the other end. At this time, the user-side data communication equipment and the transmission ring network achieve a dedicated line connection through the virtual private network channel established by the wireless communication module.

[0107] In the event of a communication cable failure, timely switching to the wireless communication module and establishing a virtual private network channel can ensure uninterrupted use of the dedicated line service and improve the user experience.

[0108] Please refer to Figure 3 In some embodiments, after S130 above, the following may also be included:

[0109] S210, upon detecting the recovery of a fault in the communication cable, connect the line module to the communication object and disconnect the communication protection module from the communication object;

[0110] S220: Send a VPN shutdown command to the peer communication transmission device and receive a VPN shutdown response command returned by the peer communication transmission device to shut down the VPN channel.

[0111] S230 reports a fault clearing signal when the communication transmission equipment at the other end is connected via a communication cable.

[0112] In this embodiment, when the communication transmission device detects that the cable fault has been resolved, it can close the wireless transmission channel and reopen the wired transmission channel. It then closes the virtual private network (VPN) channel established with the peer communication transmission device by sending a VPN shutdown command to the peer device. The two communication transmission devices can then reconnect via the communication cable and notify maintenance personnel that the fault has been resolved.

[0113] In S210, when switching to the wireless communication module and establishing a dedicated line connection through a virtual private network channel, the communication transmission equipment can detect whether the fault in the communication cable has been resolved.

[0114] When a fault in the communication cable is detected and the communication cable is restored, the line module can be connected to the communication object, and the communication protection module can be disconnected from the communication object, that is, the wireless transmission channel is turned off and the wired transmission channel is turned on.

[0115] In S220, the communication transmission device can send a VPN shutdown command to the peer communication transmission device through the wireless communication module in the communication protection module. The peer communication transmission device can return a VPN shutdown response command through the wireless communication module in the communication protection module. Both wireless communication modules can shut down the VPN channel.

[0116] In S230, when the user-side data communication equipment and the transmission ring network are connected to a dedicated line via a communication cable connected by a line module, the communication transmission equipment can report a fault clearing signal to inform maintenance personnel that the cable fault has been resolved.

[0117] Please refer to Figure 4 In some embodiments, when the communication transmission equipment is connected to the user-side data communication equipment, the above-mentioned line fault handling method may further include:

[0118] S310 supplies power to the branch module when a power failure is detected in the device;

[0119] S320, when the branch module is transmitting data, establishes a virtual private network channel with the communication transmission equipment at the other end and reports a first power supply alarm signal; wherein, the first power supply alarm signal is used to prompt maintenance personnel to perform maintenance on the communication transmission equipment;

[0120] S330 reports a second power supply alarm signal when the branch module is not transmitting data; the second power supply alarm signal is used to prompt maintenance personnel to disconnect the power on the user side.

[0121] In this embodiment, the communication transmission equipment can also detect abnormal power outages. Under temporary power supply, by detecting whether there is data transmission in the branch module, it can determine whether the power outage is on the communication transmission equipment or the entire user side. The corresponding power supply alarm signal is then sent to the maintenance personnel to effectively push the cause of the power outage to the maintenance personnel, helping to guide the maintenance personnel to accurately handle abnormal problems and reduce the time and manpower costs of maintenance.

[0122] In S310, the communication transmission equipment can also handle equipment power failure anomalies. When a power failure is detected, the communication control module in the communication transmission equipment can provide temporary power to the branch module.

[0123] In S320, under temporary power supply conditions, the communication transmission equipment can detect whether the tributary module is transmitting data. If the tributary module is transmitting data, it indicates that the user-end data communication equipment or the transmission ring network has not experienced a power outage, and only the communication transmission equipment has a power supply failure. At this time, the communication transmission equipment can establish a virtual private network channel with the communication transmission equipment at the other end and report the first power supply alarm signal. After receiving the first power supply alarm signal, maintenance personnel can determine that the communication transmission equipment has a power supply failure and requires maintenance.

[0124] The first power supply alarm signal can be a PSD-D alarm message, and the second power supply alarm signal can be a PSD-C alarm message.

[0125] Please refer to Figure 5 In some embodiments, after S320 above, the following may also be included:

[0126] S410, upon detecting that the device is powered on, connects the line module to the communication object and disconnects the communication protection module from the communication object;

[0127] S420 sends a VPN shutdown command to the peer communication transmission device and receives a VPN shutdown response command returned by the peer communication transmission device to shut down the VPN channel.

[0128] S430 reports a power restoration signal when it is connected to the communication transmission equipment at the other end via a communication cable.

[0129] In this embodiment, when the communication transmission device detects that the device has been powered on again, it can close the wireless transmission channel and reopen the wired transmission channel. It then closes the virtual private network (VPN) channel established with the peer communication transmission device by sending a VPN shutdown command to the peer device. The two communication transmission devices can then reconnect via the communication cable and notify maintenance personnel that the power outage fault has been resolved.

[0130] In S410, when switching to the wireless communication module and establishing a dedicated line connection through a virtual private network channel, the communication transmission equipment can detect whether the device is powered on.

[0131] When the device is detected to be powered on again, the line module can be connected to the communication object, and the communication protection module can be disconnected from the communication object, that is, the wireless transmission channel is turned off and the wired transmission channel is turned on.

[0132] In S420, the communication transmission device can send a VPN shutdown command to the peer communication transmission device via the wireless communication module in the communication protection module. The peer communication transmission device can return a VPN shutdown response command via the wireless communication module in the communication protection module. The two wireless communication modules can shut down the VPN channel.

[0133] In S430, when the user-side data communication equipment and the transmission ring network are connected by a dedicated communication cable via a line module, the communication transmission equipment can report a power restoration signal to inform maintenance personnel that the power supply fault has been resolved.

[0134] In S330, under temporary power supply, the communication transmission equipment can detect whether the tributary module is transmitting data. If the tributary module is transmitting data, it indicates a complete power outage on the user side. At this time, the communication transmission equipment can report a second power supply alarm signal. After receiving the second power supply alarm signal, maintenance personnel can confirm that the user side is completely powered down without needing to take any action.

[0135] It should be noted that the above-mentioned detection of power outage anomalies and reporting of corresponding power supply alarm signals are performed when the communication transmission equipment is connected to the user-side data communication equipment. That is, this embodiment is only applicable to communication transmission equipment connected to the user-side data communication equipment.

[0136] The functional blocks shown in the above-described structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0137] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0138] This document uses specific examples to illustrate the principles and implementation methods of this application. The examples are merely for the purpose of helping to understand the method and core ideas of this application. The above are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of this application to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A communication transmission device, characterized in that, The communication transmission device includes: A line module, connected to a communication cable, is used to generate a cable alarm signal in the event of a failure in the communication cable; The main control module, connected to the line module, is used to generate an enable signal in response to the cable alarm signal; A communication control module, connected to the main control module, is used to generate a first switching signal and a protection start signal in response to the start signal; A communication protection module, connected to the communication control module, includes a wireless communication module for responding to a protection activation signal and establishing a virtual private network channel with the communication transmission equipment at the other end through the wireless communication module; A branch module, connected to the line module, the communication object, and the communication protection module, is used to respond to a first switching signal to disconnect the line module from the communication object and connect the communication protection module to the communication object; The communication control module is also used to temporarily supply power to the branch module when a power failure is detected in the device, and generate a first switching signal, a protection start signal and a first power supply alarm signal when the branch module is transmitting data, or generate a second power supply alarm signal when the branch module is not transmitting data, depending on the data transmission status of the branch module. The communication protection module is also used to report the first power supply alarm signal or the second power supply alarm signal.

2. The communication transmission device according to claim 1, characterized in that, The communication control module is also used to report cable fault signals through the main control module when the communication protection module establishes a virtual private network channel with the communication transmission equipment at the other end.

3. The communication transmission device according to claim 1, characterized in that, The line module is also used to generate a recovery signal in the event of a fault recovery in the communication cable; The main control module is used to generate a shutdown signal in response to the recovery signal; The communication control module is also used to generate a second switching signal and a protection end signal in response to the shutdown signal; The branch module is used to respond to the second switching signal to connect the line module to the communication object and disconnect the communication protection module from the communication object; The communication protection module is used to close the virtual private network channel established with the communication transmission equipment on the other end in response to the protection termination signal.

4. The communication transmission device according to claim 3, characterized in that, The communication control module is also used to report a fault clearing signal through the main control module when the line module establishes a wired link connection with the communication transmission equipment at the other end via a communication cable.

5. The communication transmission device according to claim 3, characterized in that, The communication control module is also used to generate a second switching signal and a protection end signal when the device is detected to be powered on. The branch module is used to respond to the second switching signal to connect the line module to the communication object and disconnect the communication protection module from the communication object; The communication protection module is used to close the virtual private network channel established with the communication transmission equipment on the other end in response to the protection termination signal.

6. The communication transmission device according to claim 5, characterized in that, The communication control module is also used to report a power restoration signal through the communication protection module when the line module establishes a wired link connection with the communication transmission equipment at the other end via a communication cable.

7. A method for handling line faults, characterized in that, The line fault handling method, applied to any one of claims 1-6, comprises: If a communication cable fault is detected, the line module will be disconnected from the communication object, and the communication protection module will be connected to the communication object. Send a VPN enable command to the communication transmission equipment at the other end, and receive a VPN enable response command returned by the communication transmission equipment at the other end, in order to establish a VPN channel; When communicating with the communication transmission equipment at the other end through the virtual private network channel, a cable fault signal is reported.

8. The line fault handling method according to claim 7, characterized in that, After reporting a cable fault signal when communicating with the communication transmission equipment at the other end via the virtual private network channel, the method further includes: Upon detecting that the communication cable has recovered from a fault, the line module is connected to the communication object, and the communication protection module is disconnected from the communication object. Send a VPN shutdown command to the communication transmission device at the other end, and receive a VPN shutdown response command returned by the communication transmission device at the other end, so as to shut down the VPN channel; When a communication connection is established with the communication transmission equipment at the other end via the communication cable, a fault clearing signal is reported.

9. The line fault handling method according to claim 7, characterized in that, The communication transmission equipment is connected to the user-side data communication equipment, and the line fault handling method further includes: Power is supplied to the branch module when a power failure is detected in the device; When the branch module transmits data, a virtual private network channel is established with the communication transmission equipment at the other end, and a first power supply alarm signal is reported; wherein, the first power supply alarm signal is used to prompt maintenance personnel to perform maintenance on the communication transmission equipment; If the branch module does not transmit data, a second power supply alarm signal is reported; wherein, the second power supply alarm signal is used to prompt maintenance personnel to disconnect the power on the user side.

10. The line fault handling method according to claim 9, characterized in that, After establishing a virtual private network channel with the communication transmission equipment at the other end and reporting the first power supply alarm signal when the branch module transmits data, the method further includes: When the device is detected to be powered on, the line module is connected to the communication object, and the communication protection module is disconnected from the communication object; Send a VPN shutdown command to the communication transmission device at the other end, and receive a VPN shutdown response command returned by the communication transmission device at the other end, so as to shut down the VPN channel; When a communication connection is established with the communication transmission equipment at the other end via the communication cable, a power restoration signal is reported.

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