Emergency direct protection system, method and optical equipment for optical transmission loop / link

Abstract

The present invention belongs to the technical field of optical transmission networks, and specifically discloses an emergency direct protection system, method, and optical equipment for an optical transmission loop / link. The system includes an optical line protection controller connected in series to the optical transmission loop / link and connected to the optical equipment, as well as a centralized monitoring platform and an optical equipment network management platform. The optical line protection controller corresponds one-to-one with the optical equipment at the optical transmission loop / link site, the centralized monitoring platform is connected to the optical line protection controller, the optical equipment network management platform is connected to the optical equipment, and the centralized monitoring platform is connected to the optical equipment network management platform. The incoming optical fiber, outgoing optical fiber, and incoming and outgoing ends of the optical equipment at the access site are all connected to the optical line protection controller. If the optical equipment loses power or fails, the optical line protection controller allows the incoming optical fiber and the outgoing optical fiber at the site to be directly connected. By adopting this technical solution, in the event of a power outage or failure of the optical equipment, an emergency direct connection can be achieved, and an open-loop fault or a single-link fault can be quickly recovered.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical transmission networks, and in particular relates to an emergency direct protection system, method and optical equipment for an optical transmission loop / link. Background Art

[0002] Business drives network development. Under the new situation and new opportunities, the telecommunications business is constantly advancing network construction, and the construction of three-network integration is ready to go. The optical cross-connection box will play a very important role in the construction of the entire local optical cable network, and will help expand and continue the construction of optical cable.

[0003] The optical cable junction box is a junction device that provides optical cable termination and jumpering for the trunk layer optical cable and the distribution layer optical cable. After the optical cable is introduced into the optical cable junction box, it is fixed, terminated and fiber-matched, and then the trunk layer optical cable and the distribution layer optical cable are connected using jumpers.

[0004] Prior art, such as patent 201922240290.8, discloses an intelligent optical cable junction box that includes a signal acquisition controller located at the top of the box. This controller remotely monitors active links. This device only provides monitoring functionality and cannot promptly implement measures to maintain transmission line connectivity in the event of a power outage or malfunction. Summary of the Invention

[0005] The object of the present invention is to provide an emergency direct protection system, method and optical equipment for an optical transmission loop / link, so as to realize emergency direct connection and quickly recover from open loop fault or single link fault.

[0006] To achieve the above-mentioned object, the basic solution of the present invention is: an emergency direct-through protection system for an optical transmission loop / link, which adopts one of the following solutions:

[0007] Option 1:

[0008] It includes an optical line security controller connected in series to the optical transmission loop / link and connected to the optical equipment, as well as a centralized monitoring platform and an optical equipment network management platform. The optical line security controller corresponds one-to-one with the optical equipment at the optical transmission loop / link site, the centralized monitoring platform is connected to the optical line security controller, and the optical equipment network management platform is connected to the optical equipment;

[0009] The site's incoming optical fiber, outgoing optical fiber, and the incoming and outgoing ends of optical equipment can all be connected to the optical line security controller;

[0010] When the optical equipment loses power or fails, the optical line protection controller ensures that the incoming optical fiber and the outgoing optical fiber of the site are connected directly, ensuring that the bidirectional transmission line of the optical transmission loop / link is never disconnected;

[0011] The optical equipment network management platform monitors the working status and connection mode of the optical equipment and automatically adjusts or restores the configuration of the upstream and downstream sites of the site where the power-off or faulty optical equipment is located based on the bypass pass-through mode or normal working mode;

[0012] Alternatively, the centralized monitoring platform collects the bypass / normal working mode information of the optical line security controller of each site in real time and transmits it to the optical equipment network management platform. The optical equipment network management platform automatically adjusts / restores the configuration of the upstream and downstream sites where the power-off or faulty optical equipment is located based on the bypass / normal working mode of the optical line security controller corresponding to the optical ring / link site.

[0013] Alternatively, a centralized monitoring platform collects information about the bypass / normal working mode of the optical line assurance controller at each site in real time, transmits control commands to the optical equipment network management platform, and the optical equipment network management platform adjusts / restores the service network configuration of upstream and downstream sites where the power-off or faulty optical equipment is located.

[0014] Option 2:

[0015] It includes an optical line security controller connected in series to the optical transmission loop / link and connected to the optical equipment. The optical line security controller corresponds one-to-one with the optical equipment at the optical transmission loop / link site. The incoming optical fiber, outgoing optical fiber, and incoming and outgoing ends of the optical equipment at the site can all be connected to the optical line security controller;

[0016] The optical equipment has the primary and backup business network configurations preset through the optical equipment network management platform. The optical equipment of the two adjacent sites upstream and downstream of any site can judge the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power or fails, the optical line security controller makes the incoming optical fiber and the outgoing optical fiber of the site directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off. If the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites automatically starts the business network configuration data to realize direct communication connection between the optical equipment of the two upstream and downstream sites.

[0017] The working principle and beneficial effects of this basic solution are as follows: This technical solution sets up an optical line security controller, and uses a centralized monitoring platform to collect bypass direct mode / normal working mode information of the optical line security controller. When the optical equipment of a certain site loses power, the reverse direction self-healing function of the optical equipment of the adjacent site of the optical transmission loop (clockwise to counterclockwise, or counterclockwise to clockwise) is used to ensure that the service is not interrupted. Then, the network management platform is used to automatically modify the routing configuration information of the upstream and downstream adjacent sites of the optical equipment line failure or power failure site in real time to ensure that the bidirectional transmission line of the optical transmission loop / link is never cut off, and to ensure that the loop is not open and the link is not disconnected. The optical line security controller can also be used to make the optical equipment automatically switch to another routing configuration connection to achieve a loop that is not open, a link that is not disconnected, and a service that is not interrupted.

[0018] Furthermore, for packet network optical equipment, when optical equipment at any site on a transmission loop / link loses power or fails, causing fiber direct bypass, and the service network configuration data of the upstream and downstream adjacent sites of the optical transmission loop / link needs to be adjusted to achieve service direct connection, the optical equipment network management platform remotely and automatically adjusts the service network configuration data of the optical equipment on the transmission line;

[0019] For transmission equipment such as MSTP and SDH, when optical equipment at any site on the transmission loop / link is bypassed due to power outage or failure, service direct connection can be achieved without reconfiguring service network configuration data.

[0020] The optical equipment network management platform can configure routing information for different devices when needed, making it easy to use.

[0021] Furthermore, the centralized monitoring platform obtains the working mode information of the optical line security controller and transmits it to the optical equipment network management platform. The optical equipment network management platform automatically adjusts / restores the transmission routing configuration of upstream and downstream sites based on whether the optical equipment at a certain site is working normally.

[0022] The operation is simple and convenient for line transmission.

[0023] Furthermore, the optical line security controller includes a 1 / 2-gated optical switch and a 2 / 1-gated optical switch;

[0024] The input end of the 1 / 2 gate optical switch is connected to the incoming optical fiber, the two output ends of the 1 / 2 gate optical switch are respectively connected to the base station optical equipment and one input end of the 2 / 1 gate optical switch, the other input end of the 2 / 1 gate optical switch is connected to the base station optical equipment, and the output end of the 2 / 1 gate optical switch is connected to the outgoing optical fiber.

[0025] A 2 / 1 optical switching switch is configured on the user side to access the ONU with a single port input. When any optical cable line is interrupted, it automatically switches to another backup route to ensure that the optical equipment service is not interrupted when the end optical cable line fails.

[0026] Furthermore, it also includes an optical amplifier, which is connected in series to the connection line between the optical line security controller and the optical transmission loop / link.

[0027] In scenarios where the transmission line distance between upstream and downstream sites is too long, the optical line assurance controller must be equipped with an optical amplifier to ensure the stability of services under long-distance transmission of the optical cable core.

[0028] The present invention also provides an emergency cut-through protection method for an optical transmission loop / link of the system of the present invention, which adopts one of the following schemes:

[0029] Solution 1 includes the following steps:

[0030] The centralized monitoring platform collects the bypass mode / normal working mode of the optical line assurance controller at each site in real time and transmits it to the optical equipment network management platform;

[0031] When the optical equipment at a site loses power or fails, the optical line security controller ensures that the incoming and outgoing optical fibers at the site are connected directly, ensuring that the bidirectional transmission line of the optical transmission loop / link is not disconnected.

[0032] The optical equipment network management platform automatically adjusts or restores the service network configuration of upstream and downstream sites where the power-off or faulty optical equipment is located based on the bypass pass-through mode or normal working mode of the optical line assurance controller.

[0033] This method utilizes components such as an optical line security controller and an optical equipment network management platform to ensure direct line connectivity and uninterrupted important services in the event of a power outage or failure of the optical equipment.

[0034] Solution 2 includes the following steps:

[0035] Optical equipment is preset with primary and backup business network configuration data through the optical equipment network management platform. The optical equipment of the two adjacent sites upstream and downstream of any site can judge the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power or fails, the optical line security controller makes the incoming optical fiber and the outgoing optical fiber of the site directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off. When the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites of the site automatically starts the backup business network configuration data to realize direct communication connection between the optical equipment of the two upstream and downstream sites of the site.

[0036] Automatically adjust the transmission routing configuration of upstream and downstream sites to ensure stable transmission of the optical cable core.

[0037] Furthermore, the method for automatically adjusting the service network configuration of upstream and downstream sites in Solution 1 is as follows:

[0038] For an optical transmission loop, when the optical equipment at a site loses power or fails, the reverse self-healing function of the optical equipment at adjacent sites on the optical transmission loop is used to ensure uninterrupted services. After the optical fiber at the site is directly bypassed, the optical equipment network management platform automatically modifies the service network configuration information of the upstream and downstream adjacent sites of the optical equipment line failure or power failure point in real time, ensuring that the optical transmission loop can quickly and bidirectionally self-heal without loop failure.

[0039] For optical transmission links, when the optical equipment at a site loses power or fails, after the optical fiber is directly bypassed at the site, the optical equipment network management platform automatically modifies the service network configuration information of the upstream and downstream adjacent sites of the optical equipment line failure or power failure point in real time, ensuring that subsequent sites on the optical transmission link can quickly restore services.

[0040] Furthermore, in Solution 2, the method for automatically adjusting the service network configuration of upstream and downstream sites is as follows:

[0041] For optical transmission loops, after configuring the corresponding optical line security controller for the optical equipment at each site, configure the primary and backup service networks for the optical equipment in advance on the optical equipment network management platform.

[0042] The optical equipment of any site's upstream and downstream adjacent sites determines the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power / failures, the optical line assurance controller automatically switches to achieve direct optical fiber connection between the upstream and downstream sites. When the current routing communication connection fails N times consecutively or within a certain period of time, the optical equipment of the upstream and downstream sites uses the reverse direction self-healing function of the optical equipment of the adjacent sites of the upstream and downstream sites and / or automatically starts the backup service network configuration to achieve direct communication connection between the optical equipment of the two upstream and downstream sites, so as to achieve rapid bidirectional self-healing of the optical transmission loop without loop opening and uninterrupted service.

[0043] For optical transmission links, after configuring the corresponding optical line security controller for the optical equipment at each site, the primary and backup service network configurations are pre-installed for the optical equipment on the optical equipment network management platform.

[0044] The optical equipment of any site's upstream and downstream adjacent sites can judge the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power / failure, the optical line assurance controller automatically switches to achieve direct optical fiber connection between the upstream and downstream sites. When the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites automatically starts the backup service network configuration data to achieve direct communication connection between the optical equipment of the two upstream and downstream sites, so as to ensure that the subsequent sites of the optical transmission link are connected and the service is not interrupted.

[0045] Automatically adjust the transmission routing configuration of upstream and downstream sites to facilitate business transmission.

[0046] Furthermore, whether the optical device is faulty is determined by detecting whether there is an optical signal output, and when the optical device does not output an optical signal, it is determined that the optical device is faulty.

[0047] Detecting whether optical equipment is faulty is helpful for subsequent line adjustments.

[0048] The present invention also provides an optical device, in which the optical line security controller of the present invention is integrated;

[0049] The site's incoming optical fiber, outgoing optical fiber, and the incoming and outgoing ends of optical equipment can all be connected to the optical line security controller;

[0050] When the optical equipment loses power or fails, the optical line security controller ensures that the incoming optical fiber and the outgoing optical fiber of the site are directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off.

[0051] The optical equipment is based on the optical line security controller to ensure that the bidirectional transmission line of the optical transmission loop / link is never cut off.

[0052] Furthermore, the network configuration method of automatically adjusting upstream and downstream sites is integrated into the optical equipment. The specific service network configuration method is as follows:

[0053] Method 1:

[0054] When the optical equipment at a site loses power or fails, after the optical fiber is directly bypassed at the site, the upstream and downstream adjacent sites of the optical equipment failure or power failure point receive information from the optical equipment network management platform and automatically modify the service network configuration data information in real time, ensuring that the optical transmission loop can quickly and bidirectionally self-heal without loop opening, or ensuring that subsequent sites on the unlooped optical transmission link can quickly resume service.

[0055] Method 2:

[0056] The optical equipment at each optical transmission loop / link site has the primary service network configuration data and the backup service network configuration data pre-installed on the optical equipment network management platform. The optical equipment at any site's upstream and downstream adjacent sites can determine the communication status with the optical equipment at that site in real time. When the optical equipment at that site loses power / failures, the optical line assurance controller automatically switches to achieve direct fiber connection between the upstream and downstream sites. When the current routing communication connection fails N times consecutively or within a certain period of time, the optical equipment at the upstream and downstream sites automatically starts the backup service network configuration data to achieve direct communication connection between the optical equipment at the upstream and downstream sites, ensuring that the optical transmission loop still has bidirectional self-healing capabilities without loop opening, or that the subsequent sites of the unlooped optical transmission link remain disconnected, and that services are not interrupted.

[0057] Method 3: For optical transmission loops, based on the implementation of Method 1 or Method 2, the optical equipment at the site where the optical equipment loses power or fails will perform self-healing in the opposite direction to ensure uninterrupted services.

[0058] Optical equipment can automatically adjust the transmission routes of upstream and downstream sites to ensure information transmission and protect important business from interruption. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a structural diagram of the emergency direct-through protection system of the optical transmission loop / link of the present invention;

[0060] Figure 2 It is a structural diagram of a preferred optical line protection controller of the emergency direct protection system of the optical transmission loop / link of the present invention. DETAILED DESCRIPTION

[0061] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0062] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0063] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0064] The present invention discloses an emergency direct protection system for an optical transmission loop / link, such as Figure 1 As shown, use one of the following solutions:

[0065] Option 1:

[0066] It includes an optical line security controller connected in series to the optical transmission loop / link and connected to the optical equipment, as well as a centralized monitoring platform and an optical equipment network management platform. The optical line security controller corresponds to the optical equipment at the optical transmission loop / link site on a one-to-one basis. The centralized monitoring platform is connected to the optical line security controller, and the optical equipment network management platform is electrically connected to the optical equipment.

[0067] The site's incoming optical fiber, outgoing optical fiber, and the incoming and outgoing ends of optical equipment can all be electrically connected to the optical line security controller;

[0068] When an optical device loses power or fails, the optical line assurance controller ensures direct connection between the incoming and outgoing optical fibers at the site, ensuring that the bidirectional transmission line of the optical transmission loop / link is never disconnected. (The current self-healing mode is reverse self-healing. Although normal services can be guaranteed after an optical device failure, the site will not be directly connected, and only one of the two transmission lines will remain. If another site fails, the entire link will be disconnected.)

[0069] The centralized monitoring platform collects the bypass and direct mode / normal working mode information of the optical line security controller at each site in real time and transmits it to the optical equipment network management platform. Based on the bypass and direct mode / normal working mode of the optical line security controller corresponding to the optical ring / link site, the optical equipment network management platform automatically adjusts / restores the transmission routing configuration of the upstream and downstream sites where the power-off or faulty optical equipment is located.

[0070] The optical equipment network management platform monitors the working status and connection mode of the optical equipment (specifically, the working status and connection mode of the optical equipment can be determined by signal quality detection, link status detection, or performance indicator monitoring), and automatically adjusts / restores the configuration of upstream and downstream sites where the power-off or faulty optical equipment is located based on the bypass pass-through mode / normal working mode.

[0071] Alternatively, the centralized monitoring platform collects the bypass and straight-through mode / normal working mode information of the optical line security controller at each site in real time and transmits it to the optical equipment network management platform. The optical equipment network management platform automatically adjusts / restores the configuration of the upstream and downstream sites where the power-off or faulty optical equipment is located based on the bypass and straight-through mode / normal working mode of the optical line security controller corresponding to the optical ring / link site.

[0072] Alternatively, a centralized monitoring platform collects real-time information about the bypass / normal operating mode of each site's optical line assurance controller. The centralized monitoring platform transmits control commands to the optical equipment network management platform, which then adjusts / restores the service network configuration for sites upstream and downstream of the site where the power-down or faulty optical equipment is located. Both of these methods enable adjustment / restore of transmission routing configuration for sites upstream and downstream of the site where the power-down or faulty optical equipment is located.

[0073] Option 2:

[0074] It includes an optical line security controller connected in series to the optical transmission loop / link and connected to the optical equipment. The optical line security controller corresponds one-to-one with the optical equipment at the optical transmission loop / link site. The incoming optical fiber, outgoing optical fiber, and incoming and outgoing ends of the optical equipment at the site can all be connected to the optical line security controller;

[0075] The optical equipment contains the primary service network configuration data and the backup service network configuration data preset by the optical equipment network management platform. The optical equipment of the two adjacent sites upstream and downstream of any site can judge the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power or fails, the optical line protection controller makes the incoming optical fiber and the outgoing optical fiber of the site directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off. When the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites of the site automatically starts the backup service network configuration data to realize the direct communication connection between the optical equipment of the two upstream and downstream sites of the site. In this embodiment, the emergency direct protection system also includes a centralized monitoring platform and an optical equipment network management platform. The centralized monitoring platform can realize the automatic protection function without being interconnected with the optical equipment network management platform. The primary service network configuration and the backup service network configuration are preset in the optical equipment through the optical equipment network management platform. When the optical equipment of a site loses power or fails, the optical equipment of its upstream and downstream sites automatically starts the backup routing to realize the direct communication connection between the optical equipment of the two upstream and downstream sites of the site.

[0076] Specific business network configuration refers to the business network configuration data information that needs to be adjusted after the optical equipment of a certain site loses power or fails and the optical equipment of the upstream and downstream sites communicate directly with each other. It may include but is not limited to transmission route configuration, data configuration (bandwidth allocation, traffic monitoring, data synchronization, etc.), business configuration (business service docking, bandwidth management and other QOS strategies, etc.), network security configuration, IP address configuration, etc.

[0077] Preferably, based on the bypass mode / normal working mode of the optical line protection controller of each site, when the optical equipment of a certain site loses power, the reverse direction self-healing function of the optical equipment of the adjacent site of the optical transmission loop is used (clockwise to counterclockwise, or counterclockwise to clockwise) to ensure that the service is not interrupted, and then the network management platform is used to automatically modify the routing configuration information of the upstream and downstream adjacent sites of the optical equipment line failure or power failure site in real time to ensure that the loop is not open and the link is not disconnected.

[0078] For packet network optical equipment, when optical equipment at any site on a transmission loop / link loses power or fails, causing fiber direct bypass, and the service network configuration data of the upstream and downstream adjacent sites of the optical transmission loop / link needs to be adjusted to achieve service direct connection, the optical equipment network management platform remotely and automatically adjusts the service network configuration data of the optical equipment on the transmission line;

[0079] For transmission equipment, when the optical equipment at any site on the transmission loop / link is bypassed due to power outage or failure, business can be achieved without reconfiguring the business network configuration data.

[0080] In a preferred embodiment of the present invention, for packet network optical equipment such as PTN, when a power outage or failure at any node in a transmission loop / link causes fiber bypass, requiring adjustment of the routing configuration of adjacent sites upstream and downstream of the optical transmission loop / link to ensure direct service flow, the optical equipment network management platform remotely and automatically adjusts the routing configuration of the optical equipment on the transmission line. For packet network optical equipment such as IPRAN, if a power outage at any node in the transmission loop causes fiber bypass, operations and maintenance personnel must remotely and timely adjust the transmission routing configuration through the network management system.

[0081] For transmission equipment such as MSTP and SDH, when optical equipment at any site on the transmission loop / link is bypassed due to power outage or failure, service can be directly connected without reconfiguring routing information.

[0082] Preferably, the centralized monitoring platform obtains the working mode information of the optical line security controller and transmits it to the optical equipment network management platform. The optical equipment network management platform automatically adjusts / restores the transmission routing configuration of upstream and downstream sites based on whether the optical equipment at a certain site is working normally.

[0083] In a preferred embodiment of the present invention, Figure 2 As shown, the optical line security controller includes a 1 / 2-gate optical switch (i.e., optical switch 1) and a 2 / 1-gate optical switch (i.e., optical switch 2). The input end of the 1 / 2-gate optical switch is electrically connected to the incoming optical fiber, and the two output ends of the 1 / 2-gate optical switch are electrically connected to the base station optical equipment and one input end of the 2 / 1-gate optical switch respectively. The other input end of the 2 / 1-gate optical switch is connected to the base station optical equipment, and the output end of the 2 / 1-gate optical switch is electrically connected to the outgoing optical fiber. Each gate path of the gate switch contains a pair of fiber cores. Figure 2 Physically, choosing one out of two means choosing two out of four fiber cores.

[0084] A 2 / 1 optical switching switch is configured on the user side to access the ONU with a single port input. When any optical cable line is interrupted, it automatically switches to another backup route to ensure that the optical equipment service is not interrupted when the end optical cable line fails.

[0085] In a preferred embodiment of the present invention, the emergency cut-through protection system for the optical transmission loop / link also includes an optical amplifier connected in series between the optical line security controller and the optical transmission loop / link. For scenarios where the transmission line distance between upstream and downstream sites is excessive, the optical line security controller must be equipped with an optical amplifier to ensure service stability over the long transmission distances of the optical cable core.

[0086] The present invention also provides an emergency cut-through protection method for an optical transmission loop / link of the system of the present invention, which adopts one of the following schemes:

[0087] Solution 1 includes the following steps:

[0088] The centralized monitoring platform collects the bypass mode / normal working mode of the optical line assurance controller at each site in real time and transmits it to the optical equipment network management platform;

[0089] When the optical equipment at a site loses power or fails, the optical line security controller ensures that the incoming and outgoing optical fibers at the site are connected directly, ensuring that the bidirectional transmission line of the optical transmission loop / link is not disconnected.

[0090] The optical equipment network management platform automatically adjusts or restores the service network configuration of upstream and downstream sites where the power-off or faulty optical equipment is located based on the bypass pass-through mode or normal working mode of the optical line assurance controller.

[0091] Solution 2 includes the following steps:

[0092] Optical equipment is preset with primary and backup business network configurations through the optical equipment network management platform. The optical equipment of the two adjacent sites upstream and downstream of any site can judge the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power or fails, the optical line security controller makes the incoming optical fiber and the outgoing optical fiber of the site directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off. When the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites of the site automatically starts the backup business network configuration to realize direct communication connection between the optical equipment of the two upstream and downstream sites of the site.

[0093] This method utilizes components such as an optical line security controller and an optical equipment network management platform to ensure direct line connectivity and uninterrupted important services in the event of a power outage or failure of the optical equipment.

[0094] In a preferred embodiment of the present invention, the method for automatically adjusting the service network configuration of upstream and downstream sites in Solution 1 is as follows:

[0095] For an optical transmission loop, when the optical equipment at a site loses power or fails, the reverse self-healing function of the optical equipment at adjacent sites on the optical transmission loop is used to ensure uninterrupted services. After the optical fiber at the site is directly bypassed, the optical equipment network management platform automatically modifies the service network configuration information of the upstream and downstream adjacent sites of the optical equipment line failure or power failure point in real time, ensuring that the optical transmission loop can quickly and bidirectionally self-heal without loop failure.

[0096] For optical transmission links, when the optical equipment at a site loses power or fails, after the optical fiber is directly bypassed at the site, the optical equipment network management platform automatically modifies the service network configuration information of the upstream and downstream adjacent sites of the optical equipment line failure or power failure point in real time, ensuring that subsequent sites on the optical transmission link can quickly restore services.

[0097] In a preferred embodiment of the present invention, the method for automatically adjusting the service network configuration of upstream and downstream sites in Solution 2 is as follows:

[0098] For optical transmission loops, after configuring the corresponding optical line security controller for the optical equipment at each site, the primary and backup service network configuration data are pre-installed in the optical equipment on the optical equipment network management platform.

[0099] The optical equipment of any site's upstream and downstream adjacent sites determines the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power / failures, the optical line assurance controller automatically switches to achieve direct optical fiber connection between the upstream and downstream sites. When the current routing communication connection fails N times consecutively or within a certain period of time, the optical equipment of the upstream and downstream sites uses the reverse self-healing function of the optical equipment of the adjacent sites of the upstream and downstream sites and / or automatically starts the backup service network configuration data to achieve direct communication connection between the optical equipment of the two upstream and downstream sites, so as to achieve rapid bidirectional self-healing of the optical transmission loop without loop opening and service interruption.

[0100] For optical transmission links, after configuring the corresponding optical line security controller for the optical equipment at each site, the primary and backup service network configurations are pre-installed for the optical equipment on the optical equipment network management platform.

[0101] The optical equipment of any site's upstream and downstream adjacent sites can judge the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power / failure, the optical line assurance controller automatically switches to achieve direct optical fiber connection between the upstream and downstream sites. When the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites automatically starts the backup service network configuration data to achieve direct communication connection between the optical equipment of the two upstream and downstream sites, so as to ensure that the subsequent sites of the optical transmission link are connected and the service is not interrupted.

[0102] Preferably, whether the optical device is faulty is determined by detecting whether there is an optical signal output (an optical power detection module may be integrated into the optical device for detection), and the optical device is determined to be faulty when there is no optical signal output.

[0103] The present invention also provides an optical device, in which the optical line security controller of the present invention is integrated. The incoming optical fiber, outgoing optical fiber, and the incoming and outgoing ends of the optical device at the site can be electrically connected to the optical line security controller.

[0104] When the optical equipment loses power or fails, the optical line security controller ensures that the incoming optical fiber and the outgoing optical fiber of the site are directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off.

[0105] In a preferred embodiment of the present invention, the network configuration method for automatically adjusting upstream and downstream sites is integrated into the optical device. The specific service network configuration method is:

[0106] Method 1:

[0107] When the optical equipment at a site loses power or fails, after the optical fiber is directly bypassed at the site, the upstream and downstream adjacent sites of the optical equipment failure or power failure point receive information from the optical equipment network management platform and automatically modify the service network configuration data information in real time, ensuring that the optical transmission loop can quickly and bidirectionally self-heal without loop opening and service interruption, or ensuring that subsequent sites on the unlooped optical transmission link can quickly resume service.

[0108] Method 2:

[0109] The optical equipment of each optical transmission loop / link site has the main business network configuration and backup business network configuration built-in in advance through the optical equipment network management platform. The optical equipment of any upstream and downstream adjacent sites can judge the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power / failure, the optical line security controller automatically switches to achieve direct optical fiber connection between the upstream and downstream sites. When the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites automatically starts the backup business network configuration data to achieve direct communication connection between the optical equipment of the two upstream and downstream sites of the site, so that the optical transmission loop still has bidirectional self-healing capabilities without opening the loop, or the subsequent sites of the optical transmission link that has not formed a loop are disconnected and the service is not interrupted.

[0110] Method 3: For optical transmission loops, based on the implementation of Method 1 or Method 2, the optical equipment at the site where the optical equipment loses power or fails will perform self-healing in the opposite direction to ensure uninterrupted services.

[0111] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0112] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An emergency direct-through protection system for an optical transmission loop / link, characterized in that: Use the following solution: It includes an optical line security controller connected in series to the optical transmission loop / link and connected to the optical equipment. The optical line security controller corresponds one-to-one with the optical equipment at the optical transmission loop / link site. The incoming optical fiber, outgoing optical fiber, and incoming and outgoing ends of the optical equipment at the site can all be connected to the optical line security controller; The optical equipment contains the primary and backup service network configuration data preset through the optical equipment network management platform. The optical equipment of any two adjacent sites upstream and downstream can determine the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power or fails, the optical line assurance controller directly connects the incoming and outgoing optical fibers of the site, ensuring that the bidirectional transmission line of the optical transmission loop / link is never disconnected and that subsequent sites are disconnected. When the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites automatically activates the backup service network configuration data to achieve direct communication between the optical equipment of the two upstream and downstream sites. The optical transmission loop still has bidirectional self-healing capabilities and does not open the loop, or the subsequent sites of the optical transmission link that has not formed a loop are disconnected, and the service is not interrupted. For the optical transmission loop, if the optical device loses power or fails at the site where it is located, the optical device at the adjacent site will self-heal in the opposite direction to ensure uninterrupted service.

2. The emergency direct-through protection system for an optical transmission loop / link according to claim 1, characterized in that: The optical line security controller includes a 1 / 2-way optical switch and a 2 / 1-way optical switch; The input end of the 1 / 2 gate optical switch is connected to the incoming optical fiber, the two output ends of the 1 / 2 gate optical switch are respectively connected to the base station optical equipment and one input end of the 2 / 1 gate optical switch, the other input end of the 2 / 1 gate optical switch is connected to the base station optical equipment, and the output end of the 2 / 1 gate optical switch is connected to the outgoing optical fiber.

3. The emergency direct-through protection system for an optical transmission loop / link according to claim 1, wherein: It also includes an optical amplifier, which is connected in series to the line connecting the optical line security controller and the optical transmission loop / link.

4. An emergency cut-through protection method for an optical transmission loop / link of a system according to any one of claims 1 to 3, characterized in that: Use the following solution: The steps include: Optical equipment is preset with primary and backup business network configuration data through the optical equipment network management platform. The optical equipment of the two adjacent sites upstream and downstream of any site can judge the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power or fails, the optical line security controller makes the incoming optical fiber and the outgoing optical fiber of the site directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off / subsequent sites are disconnected. When the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites of the site automatically starts the backup business network configuration data to realize direct communication connection between the optical equipment of the two upstream and downstream sites of the site.

5. The method for emergency cut-through protection of an optical transmission loop / link according to claim 4, wherein: The method for automatically adjusting the business network configuration of upstream and downstream sites is as follows: For optical transmission loops, after configuring the corresponding optical line security controller for the optical equipment at each site, the primary and backup service network configuration data are pre-installed in the optical equipment on the optical equipment network management platform. The optical equipment of any site's upstream and downstream adjacent sites determines the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power or fails, the optical line assurance controller automatically switches to achieve direct optical fiber connection between the upstream and downstream sites. When the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites uses the reverse self-healing function of the optical equipment of the adjacent sites of the upstream and downstream sites and automatically starts the backup service network configuration data to achieve direct communication connection between the optical equipment of the two upstream and downstream sites, so that the optical transmission loop can quickly and bidirectionally self-heal without opening the loop and without service interruption. For optical transmission links, after configuring the corresponding optical line security controller for the optical equipment at each site, the primary and backup service network configuration data are pre-installed in the optical equipment on the optical equipment network management platform. The optical equipment of any site's upstream and downstream adjacent sites can judge the communication status with the optical equipment of the site in real time. When the optical equipment of the site loses power / failure, the optical line assurance controller automatically switches to achieve direct optical fiber connection between the upstream and downstream sites. When the current routing communication connection fails N times in a row or within a certain period of time, the optical equipment of the upstream and downstream sites automatically starts the backup service network configuration data to achieve direct communication connection between the optical equipment of the two upstream and downstream sites, so as to ensure that the subsequent sites of the optical transmission link are connected and the service is not interrupted.

6. The method for emergency cut-through protection of an optical transmission loop / link according to claim 4, wherein: Whether the optical device is faulty is determined by detecting whether there is an optical signal output. If the optical device does not output an optical signal, it is determined that the optical device is faulty.

7. An optical device, characterized in that: An emergency cut-through protection system for an optical transmission loop / link as claimed in any one of claims 1 to 3; The site's incoming optical fiber, outgoing optical fiber, and the incoming and outgoing ends of optical equipment can all be connected to the optical line security controller; When the optical equipment loses power or fails, the optical line security controller ensures that the incoming optical fiber and the outgoing optical fiber of the site are directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off.

8. The optical device according to claim 7, wherein The network configuration method for automatically adjusting upstream and downstream sites is integrated into the optical equipment. The specific service network configuration method is as follows: Method 1: The optical equipment at each optical transmission loop / link site has the primary service network configuration data and the backup service network configuration data pre-installed on the optical equipment network management platform. The optical equipment at any site's upstream and downstream adjacent sites can determine the communication status with the optical equipment at that site in real time. When the optical equipment at that site loses power / failures, the optical line assurance controller automatically switches to achieve direct fiber connection between the upstream and downstream sites. When the current routing communication connection fails N times consecutively or within a certain period of time, the optical equipment at the upstream and downstream sites automatically starts the backup service network configuration data to achieve direct communication connection between the optical equipment at the upstream and downstream sites, ensuring that the optical transmission loop still has bidirectional self-healing capabilities without loop opening, or that the subsequent sites of the unlooped optical transmission link remain disconnected, and that services are not interrupted. Method 2: For optical transmission loops, based on the implementation of Method 1, the optical equipment at the site where the optical equipment loses power or fails will perform self-healing in the opposite direction to ensure uninterrupted services.

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