Emergency straight-through protection system and method for optical transmission loop / link and optical equipment

Abstract

The invention belongs to the technical field of optical transmission networks, and particularly discloses an emergency straight-through protection system and method for an optical transmission loop / link and optical equipment, and the system comprises an optical line guarantee controller which is connected in series on the optical transmission loop / link and is connected with the optical equipment, a centralized monitoring platform and an optical equipment network management platform, the optical line guarantee controllers are in one-to-one correspondence with optical devices of optical transmission loop / link sites, the centralized monitoring platform is connected with the optical line guarantee controllers, the optical device network management platform is connected with the optical devices, and the centralized monitoring platform is connected with the optical device network management platform; an incoming optical fiber and an outgoing optical fiber of the access network station and an incoming end and an outgoing end of the optical equipment are all connected with the optical line guarantee controller, and the optical line guarantee controller enables the incoming optical fiber and the outgoing optical fiber of the station to be directly connected when the optical equipment is powered down or breaks down. By adopting the technical scheme, the emergency direct connection is realized aiming at the power failure or fault of the optical equipment, and the open-loop fault or the single link fault is 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 cables.

[0003] The optical cable junction box is a junction device that provides termination and jumpering for the trunk layer optical cables and the distribution layer optical cables. After the optical cables are introduced into the optical cable junction box, they are fixed, terminated and fiber-matched, and then jumper fibers are used to connect the trunk layer optical cables and the distribution layer optical cables.

[0004] In the prior art, patent 201922240290.8 discloses an intelligent optical cable junction box, including a signal acquisition controller, which is located at the upper end of the box and remotely monitors the opened links through the signal acquisition controller. The device can only achieve monitoring, and when the device loses power or fails, it cannot take timely measures to ensure the connectivity of the transmission line. 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] In order to achieve the above object, the basic scheme of the present invention is: an emergency direct protection system for an optical transmission loop / link, adopting one of the following schemes:

[0007] Solution 1:

[0008] It includes an optical line security controller connected in series on an optical transmission loop / link and connected to an optical device, as well as a centralized monitoring platform and an optical device network management platform, wherein the optical line security controller corresponds to the optical device at the optical transmission loop / link site one by one, the centralized monitoring platform is connected to the optical line security controller, and the optical device network management platform is connected to the optical device;

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

[0010] When the optical equipment loses power or fails, the optical line protection controller makes the incoming optical fiber and the outgoing optical fiber of the site directly connected to ensure that the bidirectional transmission line of the optical transmission loop / link is never cut off;

[0011] The optical equipment network management platform monitors the working status and connection mode of the optical equipment, and automatically adjusts / 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 / normal working mode;

[0012] Alternatively, the centralized monitoring platform collects the bypass direct mode / 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, and the optical equipment network management platform automatically adjusts / 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 direct mode / normal working mode of the optical line security controller corresponding to the optical ring / link site.

[0013] Or the centralized monitoring platform collects the bypass mode / normal working mode information of the optical line security controller of each site in real time, and transmits the control command to the optical equipment network management platform, and the optical equipment network management platform adjusts / restores the service network configuration of the 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 which is serially connected to the optical transmission loop / link and connected to the optical equipment. The optical line security controller corresponds to the optical equipment at the optical transmission loop / link site one by one. The incoming optical fiber, outgoing optical fiber, and the 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 main business network configuration and backup business network configuration 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 to ensure 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 the direct communication connection between the optical equipment of the two upstream and downstream sites of the site.

[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 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, 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 bidirectional transmission line of the optical transmission loop / link is never cut off, and 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 business that is not interrupted.

[0018] Furthermore, for packet network optical devices, when the optical device at any site on the transmission loop / link causes optical fiber direct bypass due to power failure or failure, 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, the optical device network management platform remotely and automatically adjusts the service network configuration data of the optical device on the transmission line;

[0019] For transmission equipment such as MSTP and SDH, when the optical equipment at any site on the transmission loop / link is bypassed due to power failure or failure, service direct access can be achieved without reconfiguring the 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 the 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] Further, 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-select optical switch is connected to the incoming optical fiber, the two output ends of the 1 / 2-select optical switch are respectively connected to the base station optical equipment and one input end of the 2 / 1-select optical switch, the other input end of the 2 / 1-select optical switch is connected to the base station optical equipment, and the output end of the 2 / 1-select 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 the scenario where the transmission line distance between the upstream and downstream sites of a site is too long, the optical line security controller must be equipped with an optical amplifier to ensure the stability of the service under the long-distance transmission of the optical cable core.

[0028] The present invention also provides an emergency direct 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 security controller of 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 protection controller allows the incoming optical fiber and the outgoing optical fiber of the site to be directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off;

[0032] The optical equipment network management platform automatically adjusts / 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 / normal working mode of the optical line assurance controller.

[0033] The 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 when the optical equipment is powered off or fails.

[0034] Solution 2 includes the following steps:

[0035] The optical equipment is preset with the main business network configuration data and the 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 to ensure 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 the direct communication connection of 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 of automatically adjusting the service network configuration of the upstream and downstream sites in Solution 1 is as follows:

[0038] For the optical transmission loop, when the optical equipment of a site loses power or fails, the reverse self-healing function of the optical equipment of the adjacent site of the optical transmission loop is used to ensure that the service is not interrupted. After the optical fiber of 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 to ensure that the optical transmission loop can be quickly self-healed in both directions without opening the loop;

[0039] For optical transmission links, when the optical equipment at a site loses power / 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 of the optical transmission link can quickly resume services.

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

[0041] For the optical transmission loop, after the optical line security controller is configured for the optical equipment at each site, the main service network configuration and backup service network configuration are built into 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 judges 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 security controller automatically switches to realize the optical fiber direct connection of 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 / or automatically starts the backup service network configuration to realize the direct communication connection of the optical equipment of the two upstream and downstream sites of the site, so as to realize that the optical transmission loop can be quickly bidirectionally self-healed without opening the loop and the service is not interrupted;

[0043] For optical transmission links, after the optical line security controller is configured for the optical equipment at each site, the main service network configuration and backup service network configuration are built into the optical equipment in advance on the optical equipment network management platform;

[0044] The optical equipment of any adjacent site upstream and downstream determines 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 realize the direct 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 realize the direct communication connection between the optical equipment of the two upstream and downstream sites of the site, so as to realize the uninterrupted station of the subsequent sites of the optical transmission link and the uninterrupted service.

[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 the optical device is faulty will facilitate 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 incoming optical fiber, outgoing optical fiber, and the incoming and outgoing ends of the optical equipment at the site can all be connected to the optical line security controller;

[0050] When the optical equipment loses power or fails, the optical line security controller allows the incoming optical fiber and the outgoing optical fiber of the site to be 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 an 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 the upstream and downstream sites is integrated inside the optical device. The specific service network configuration method is:

[0053] Method 1:

[0054] When the optical equipment at a site loses power / failure, 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 to ensure that the optical transmission loop can quickly self-heal in both directions without opening the loop, or ensure that subsequent sites of the unlooped optical transmission link can quickly resume business.

[0055] Method 2:

[0056] The optical equipment of each optical transmission loop / link site has the main service network configuration data and backup service network configuration data built-in in advance through 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 security controller automatically switches to realize the optical fiber direct connection of 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 realize the direct communication connection of the optical equipment of the two upstream and downstream sites of the site, so that the optical transmission loop still has the bidirectional self-healing capability 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;

[0057] Method 3: For the optical transmission loop, based on the implementation of method 1 or method 2, the optical equipment of the adjacent site where the optical equipment loses power or fails performs self-healing in the opposite direction to ensure that the service is not interrupted.

[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 schematic diagram of the emergency direct protection system of the optical transmission loop / link of the present invention;

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

[0061] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0062] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "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 a limitation on 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 connection 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] Solution 1:

[0066] It includes an optical line security controller connected in series on an optical transmission loop / link and connected to 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 one by one, 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 incoming optical fiber, outgoing optical fiber, and the incoming and outgoing ends of the optical equipment of the site can be electrically connected to the optical line security controller;

[0068] When the optical device 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 (the current self-healing mode is reverse self-healing. Although the service can be guaranteed to be normal after a certain optical device fails, the site is not directly connected, and only one of the two transmission lines remains. If another site fails, the entire link will be cut off);

[0069] The centralized monitoring platform collects the bypass pass-through mode / 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 transmission routing configuration of the upstream and downstream sites where the power-off or faulty optical equipment is located based on the bypass pass-through mode / normal working mode of the optical line security controller corresponding to the optical ring / link site.

[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 the 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 straight-through mode / 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 straight-through mode / normal working mode of the optical line security controller corresponding to the optical ring / link site.

[0072] Alternatively, the centralized monitoring platform collects the bypass direct mode / normal working mode information of the optical line security controller of each site in real time, and the centralized monitoring platform transmits the control command to the optical equipment network management platform, and the optical equipment network management platform adjusts / restores the service network configuration of the upstream and downstream sites of the site where the power-off or faulty optical equipment is located. The above methods all achieve the adjustment / restore of the transmission route configuration of the upstream and downstream sites of the site where the power-off or faulty optical equipment is located.

[0073] Option 2:

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

[0075] The optical device has the main service network configuration data and the backup service network configuration data preset by the optical device network management platform. The optical devices of the two adjacent sites upstream and downstream of any site can judge the communication status with the optical device of the site in real time. When the optical device 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 to ensure 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 devices of the upstream and downstream sites of the site automatically start the backup service network configuration data to realize the direct communication connection of the optical devices 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 device network management platform. The centralized monitoring platform can realize the automatic protection function without being interconnected with the optical device network management platform. The main service network configuration and the backup service network configuration are preset in the optical device through the optical device network management platform. When the optical device of a site loses power or fails, the optical devices of its upstream and downstream sites automatically start the backup routing to realize the direct communication connection of the optical devices 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 two upstream and downstream sites communicate directly. 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 straight-through mode / normal working mode of the optical line security controller of each site, when the optical equipment of a certain site loses power, the reverse direction self-healing function (clockwise to counterclockwise, or counterclockwise to clockwise) of the optical equipment of the adjacent site of the optical transmission loop is used 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-off site in real time to ensure that the loop is not open and the link is not disconnected.

[0078] For packet network optical devices, when the optical device at any site on the transmission loop / link causes fiber direct bypass due to power failure or failure, 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, the optical device network management platform remotely and automatically adjusts the service network configuration data of the optical device on the transmission line;

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

[0080] In a preferred embodiment of the present invention, for packet network optical devices such as PTN, when the optical device of any site on the transmission loop / link causes the optical fiber direct bypass due to power failure or failure, and the routing configuration of the upstream and downstream adjacent sites of the optical transmission loop / link needs to be adjusted to achieve service direct access, the optical device network management platform remotely and automatically adjusts the routing configuration of the optical device on the transmission line. For packet network optical devices such as IPRAN, when the optical fiber direct bypass is caused by power failure of any node device on the transmission loop, the operation and maintenance personnel need to remotely and timely adjust the transmission routing configuration through the network management system.

[0081] For transmission equipment such as MSTP and SDH, when the optical equipment at any site on the transmission loop / link is bypassed due to power failure or failure, service can be achieved 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 the 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-gated optical switch (i.e., optical switch 1) and a 2 / 1-gated optical switch (i.e., optical switch 2). The input end of the 1 / 2-gated optical switch is electrically connected to the incoming optical fiber, the two output ends of the 1 / 2-gated optical switch are electrically connected to the base station optical equipment and one input end of the 2 / 1-gated optical switch respectively, the other input end of the 2 / 1-gated optical switch is connected to the base station optical equipment, and the output end of the 2 / 1-gated optical switch is electrically connected to the outgoing optical fiber. Each gating path of the gating 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 direct protection system of the optical transmission loop / link also includes an optical amplifier, which is connected in series to the line connecting the optical line protection controller and the optical transmission loop / link. For the scenario where the transmission line distance between the upstream and downstream sites of a certain site is too far, the optical line protection controller must be equipped with an optical amplifier to ensure the stability of the service under the long-distance transmission of the optical cable core.

[0086] The present invention also provides an emergency direct 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 security controller of 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 protection controller allows the incoming optical fiber and the outgoing optical fiber of the site to be directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off;

[0090] The optical equipment network management platform automatically adjusts / 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 / normal working mode of the optical line assurance controller.

[0091] Solution 2 includes the following steps:

[0092] The optical equipment is preset with the main business network configuration and the backup business network configuration 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 to ensure 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 the direct communication connection of the optical equipment of the two upstream and downstream sites of the site.

[0093] The 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 when the optical equipment is powered off or fails.

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

[0095] For the optical transmission loop, when the optical equipment of a site loses power or fails, the reverse self-healing function of the optical equipment of the adjacent site of the optical transmission loop is used to ensure that the service is not interrupted. After the optical fiber of 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 to ensure that the optical transmission loop can be quickly self-healed in both directions without opening the loop;

[0096] For optical transmission links, when the optical equipment at a site loses power / 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 of the optical transmission link can quickly resume services.

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

[0098] For the optical transmission loop, after the optical line security controller is configured for the optical equipment at each site, the main service network configuration data and backup service network configuration data are pre-installed in the optical equipment network management platform.

[0099] The optical equipment of any site's upstream and downstream adjacent sites judges 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 security controller automatically switches to realize the optical fiber direct connection of 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 / or automatically starts the backup service network configuration data to realize the direct communication connection of the optical equipment of the two upstream and downstream sites of the site, so as to realize that the optical transmission loop can be quickly bidirectionally self-healed without opening the loop and the service is not interrupted;

[0100] For optical transmission links, after the optical line security controller is configured for the optical equipment at each site, the main service network configuration and backup service network configuration are built into the optical equipment in advance on the optical equipment network management platform;

[0101] The optical equipment of any adjacent site upstream and downstream determines 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 realize the direct 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 realize the direct communication connection between the optical equipment of the two upstream and downstream sites of the site, so as to realize the uninterrupted station of the subsequent sites of the optical transmission link and the uninterrupted service.

[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 in the optical device for detection), and the optical device is determined to be faulty when there is no optical signal output from the optical device.

[0103] The present invention also provides an optical device, in which the optical line security controller of the present invention is integrated, and the incoming optical fiber, outgoing optical fiber, and the incoming and outgoing ends of the optical device of 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 allows the incoming optical fiber and the outgoing optical fiber of the site to be directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off.

[0105] In a preferred solution of the present invention, the network configuration mode of automatically adjusting the upstream and downstream sites is integrated inside the optical device, and the specific service network configuration mode is:

[0106] Method 1:

[0107] When the optical equipment at a site loses power / failure, 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 to ensure that the optical transmission loop can quickly self-heal in both directions without opening the loop and without interrupting the service, or ensure that the subsequent sites of the optical transmission link that has not formed a ring 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 the 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 realize the direct fiber connection of 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 realize the direct communication connection of the optical equipment of the two upstream and downstream sites of the site, so that the optical transmission loop still has two-way self-healing capability without opening the loop, or the subsequent sites of the optical transmission link that has not formed a loop are disconnected, and the business is not interrupted.

[0110] Method 3: For the optical transmission loop, based on the implementation of method 1 or method 2, the optical equipment of the adjacent site where the optical equipment loses power or fails performs self-healing in the opposite direction to ensure that the service is not interrupted.

[0111] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0112] Although the 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 present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An emergency direct protection system for an optical transmission loop / link, characterized in that: Use one of the following options: Solution 1: It includes an optical line security controller connected in series on an optical transmission loop / link and connected to an optical device, as well as a centralized monitoring platform and an optical device network management platform, wherein the optical line security controller corresponds to the optical device at the optical transmission loop / link site one by one, the centralized monitoring platform is connected to the optical line security controller, and the optical device network management platform is connected to the optical device; The incoming optical fiber, outgoing optical fiber, and the incoming and outgoing ends of the optical equipment at the site can all be connected to the optical line security controller; When the optical equipment loses power or fails, the optical line protection controller makes the incoming optical fiber and the outgoing optical fiber of the site directly connected to ensure that the bidirectional transmission line of the optical transmission loop / link is never cut off; The optical equipment network management platform monitors the working status and connection mode of the optical equipment, and automatically adjusts / 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 / normal working mode; Alternatively, the centralized monitoring platform collects the bypass direct mode / 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, and the optical equipment network management platform automatically adjusts / 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 direct mode / normal working mode of the optical line security controller corresponding to the optical ring / link site. Or the centralized monitoring platform collects the bypass mode / normal working mode information of the optical line security controller of each site in real time, and transmits the control command to the optical equipment network management platform, and the optical equipment network management platform adjusts / restores the service network configuration of the upstream and downstream sites where the power-off or faulty optical equipment is located; Option 2: It includes an optical line security controller which is serially connected to the optical transmission loop / link and connected to the optical equipment. The optical line security controller corresponds to the optical equipment at the optical transmission loop / link site one by one. The incoming optical fiber, outgoing optical fiber, and the 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 main business network configuration data and the backup business network configuration data 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 to ensure 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 the direct communication connection of the optical equipment of the two upstream and downstream sites of the site.

2. The emergency direct protection system for an optical transmission loop / link as claimed in claim 1, characterized in that: For packet network optical devices, when the optical device at any site on the transmission loop / link causes fiber direct bypass due to power failure or failure, 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, the optical device network management platform remotely and automatically adjusts the service network configuration data of the optical device on the transmission line; For transmission equipment, when the optical equipment at any site on the transmission loop / link is bypassed due to fiber direct pass due to power failure or failure, business direct pass can be achieved without reconfiguring the business network configuration data.

3. The emergency direct protection system for an optical transmission loop / link as claimed in 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-select optical switch is connected to the incoming optical fiber, the two output ends of the 1 / 2-select optical switch are respectively connected to the base station optical equipment and one input end of the 2 / 1-select optical switch, the other input end of the 2 / 1-select optical switch is connected to the base station optical equipment, and the output end of the 2 / 1-select optical switch is connected to the outgoing optical fiber.

4. The emergency direct protection system for an optical transmission loop / link as claimed in claim 1, characterized in that: 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.

5. An emergency direct-through protection method for an optical transmission loop / link of a system according to any one of claims 1 to 4, characterized in that: Use one of the following options: Solution 1 includes the following steps: The centralized monitoring platform collects the bypass mode / normal working mode of the optical line security controller of each site in real time and transmits it to the optical equipment network management platform; When the optical equipment at a site loses power or fails, the optical line protection controller allows the incoming optical fiber and the outgoing optical fiber of the site to be directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off; The optical equipment network management platform automatically adjusts / restores the service network configuration of the upstream and downstream sites where the power-off or faulty optical equipment is located based on the bypass direct mode / normal working mode of the optical line assurance controller; Solution 2 includes the following steps: The optical equipment is preset with the main business network configuration data and the 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 to ensure 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 the direct communication connection of the optical equipment of the two upstream and downstream sites of the site.

6. The method for emergency direct-through protection of an optical transmission loop / link as claimed in claim 5, characterized in that: In Solution 1, the method for automatically adjusting the service network configuration of upstream and downstream sites is as follows: For the optical transmission loop, when the optical equipment of a site loses power or fails, the reverse self-healing function of the optical equipment of the adjacent site of the optical transmission loop is used to ensure that the service is not interrupted. After the optical fiber of 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 to ensure that the optical transmission loop can be quickly self-healed in both directions without opening the loop; For optical transmission links, when the optical equipment at a site loses power / 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 of the optical transmission link can quickly resume services.

7. The method for emergency direct protection of an optical transmission loop / link as claimed in claim 5, characterized in that: In Solution 2, the method for automatically adjusting the service network configuration of upstream and downstream sites is as follows: For the optical transmission loop, after the optical line security controller is configured for the optical equipment at each site, the main service network configuration data and backup service network configuration data are pre-installed in the optical equipment network management platform. The optical equipment of any site's upstream and downstream adjacent sites judges 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 security controller automatically switches to realize the optical fiber direct connection of 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 / or automatically starts the backup service network configuration data to realize the direct communication connection of the optical equipment of the two upstream and downstream sites of the site, so as to realize that the optical transmission loop can be quickly bidirectionally self-healed without opening the loop and the service is not interrupted; For optical transmission links, after the optical line security controller is configured for the optical equipment at each site, the main service network configuration data 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 adjacent site upstream and downstream determines 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 realize the direct 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 realize the direct communication connection between the optical equipment of the two upstream and downstream sites of the site, so as to realize the uninterrupted station of the subsequent sites of the optical transmission link and the uninterrupted service.

8. The method for emergency direct protection of an optical transmission loop / link as claimed in claim 6, characterized in that: 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.

9. An optical device, characterized in that: An optical line security controller according to any one of claims 1 to 5 is integrated in the optical device; The incoming optical fiber, outgoing optical fiber, and the incoming and outgoing ends of the optical equipment at the site can all be connected to the optical line security controller; When the optical equipment loses power or fails, the optical line security controller allows the incoming optical fiber and the outgoing optical fiber of the site to be directly connected, ensuring that the bidirectional transmission line of the optical transmission loop / link is never cut off.

10. The optical device according to claim 9, characterized in that The network configuration method for automatically adjusting upstream and downstream sites is integrated in the optical device. The specific service network configuration method is as follows: Method 1: 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 to ensure that the optical transmission loop can quickly self-heal in both directions without opening the loop, or ensure that the subsequent sites of the optical transmission link that has not formed a loop can quickly restore services; Method 2: The optical equipment of each optical transmission loop / link site has the main service network configuration data and backup service network configuration data built-in in advance through 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 security controller automatically switches to realize the optical fiber direct connection of 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 realize the direct communication connection of the optical equipment of the two upstream and downstream sites of the site, so that the optical transmission loop still has the bidirectional self-healing capability 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; Method 3: For the optical transmission loop, based on the implementation of method 1 or method 2, the optical equipment of the adjacent site where the optical equipment loses power or fails performs self-healing in the opposite direction to ensure that the service is not interrupted.

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