CN113890599A - Optical path protection device, method, electronic apparatus and storage medium - Google Patents
Optical path protection device, method, electronic apparatus and storage medium Download PDFInfo
- Publication number
- CN113890599A CN113890599A CN202111136963.0A CN202111136963A CN113890599A CN 113890599 A CN113890599 A CN 113890599A CN 202111136963 A CN202111136963 A CN 202111136963A CN 113890599 A CN113890599 A CN 113890599A
- Authority
- CN
- China
- Prior art keywords
- switching
- optical switch
- path
- input end
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
Abstract
The invention provides a light path protection device, a light path protection method, electronic equipment and a storage medium; the device comprises: the device comprises a control module and a multi-path protection module comprising a plurality of controlled optical switch assemblies; the controlled optical switch component is connected with the control module; the controlled optical switch component comprises a first input end, a second input end and an output end, wherein the first input end is connected with the first equipment through a first transmission line; the second input end is connected with the first equipment through a second transmission line; the output end is connected with second equipment; the first equipment corresponds to the second equipment one by one; the control module is used for acquiring power parameters of the first input end and the second input end and generating a control signal under the condition that the power parameters meet a preset switching condition; and the multi-path protection module is used for changing the connection conduction state between the first input end and the second input end of the corresponding controlled optical switch component and the output end according to the control signal.
Description
Technical Field
The invention relates to the technical field of automatic optical fiber switching protection systems, in particular to a light path protection device, a light path protection method, electronic equipment and a storage medium.
Background
An Optical Fiber automatic switching Protection system (OLP) is used as a system on an Optical cable link, has the characteristics of independent and transparent data transmission, high safety and fast fault recovery, can be matched with Equipment or devices in other Optical networks, and is constructed into an Optical communication network system with no blocking, high reliability, safety, flexibility and strong disaster resistance.
The OLP has two transmission links, a primary link and a backup link. OLP can use at least one of these two transmission links for the transmission of optical signals.
The stability of the optical network directly affects the design and construction of the network, and the protection and recovery of the optical path layer have a great influence on the safety and stability of the whole optical network. The optical path automatic switching protection system can effectively prevent and compress faults of an optical cable transmission system, and blocking resistance and disaster resistance of an optical communication network are improved. Therefore, the optical path automatic switching protection system is widely applied to the existing network of the DCI machine room of the internet manufacturer.
With the rapid growth of DCI data services and the emergence of novel high-capacity comprehensive data bearing networks, scheduling data networks and the like, new requirements are put forward on backbone transport network networks at present; conventional optical fiber automatic switching protection systems have been unable to meet the rapidly increasing business demands.
Disclosure of Invention
The embodiment of the invention provides a light path protection device, a light path protection method, electronic equipment and a storage medium. The technical scheme of the embodiment of the invention is realized as follows: an embodiment of the present invention further provides an optical path protection device, including: the system comprises a control module and a multi-path protection module;
the multi-path protection module comprises a plurality of controlled optical switch assemblies, and the controlled optical switch assemblies are connected with the control module; the controlled optical switch assembly comprises a first input end, a second input end and an output end, wherein the first input end is connected with first equipment through a first transmission line; the second input end is connected with the first equipment through a second transmission line; the output end is connected with second equipment; the first equipment corresponds to the second equipment one by one; the controlled optical switch assembly is used for switching a conduction path between the first device and the second device;
the control module is configured to obtain power parameters of the first input end and the second input end, determine whether the power parameters meet preset switching conditions, and generate a control signal when the power parameters meet the preset switching conditions;
and the multi-path protection module is used for changing the connection conduction state between the first input end and the second input end of the corresponding controlled optical switch component and the output end according to the control signal.
In the above solution, the control module includes: the device comprises a sampling component, a filtering component and a switching component; the sampling assembly is connected with the controlled optical switch assemblies, and the filtering assembly is respectively connected with the sampling assembly and the switching assembly;
the sampling component is used for acquiring power data of the first transmission line and the second transmission line in real time;
the filtering component is used for filtering the power data to obtain the power parameter;
and the switching component is used for sending the control signal to the multi-path protection module when the power parameter meets a preset switching condition.
In the above scheme, the apparatus further comprises: the parameter configuration module is connected with the control module;
the parameter configuration module is used for determining a switching mode and a switching threshold of the controlled optical switch component;
the control module is further configured to determine the preset switching condition according to the switching mode and the switching threshold.
In the foregoing solution, the parameter configuration module is further configured to: according to the power parameters at the power point before the conduction path is switched and after the conduction path is switched by the multi-path protection module, graphically displaying the change of the power parameters at the power point before and after switching; wherein the power point comprises: a first input, a second input, and an output of the controlled optical switch assembly.
In the foregoing solution, the control module is further configured to: when the switching mode is a forced switching mode, sending a switching instruction to the multi-path protection module according to switching information output by the parameter configuration module, and controlling the corresponding controlled optical switch component to switch the conduction path.
In the scheme, the control module is connected with a plurality of electric layer board cards;
the control module is further used for obtaining light path alarm information output by the electric layer board card and controlling the corresponding controlled optical switch assembly to switch the conduction path based on the light path alarm information.
The embodiment of the invention provides a light path protection method, which is applied to the light path protection device provided by the embodiment and comprises the following steps: acquiring power parameters of a first transmission line and a second transmission line of each first device;
judging whether the power parameters meet preset switching conditions or not, and switching conduction paths between the first equipment and second equipment corresponding to the first equipment under the condition that the power parameters meet the preset switching conditions.
In the above scheme, the method further comprises:
responding to a setting operation, determining a switching mode and the preset switching condition corresponding to the switching mode; wherein the switching mode includes: a forced switching mode, a manual switching mode and an automatic switching mode.
In the above scheme, the method further comprises:
determining a switching mode and a switching threshold of the controlled optical switch assembly in response to a setting operation;
and determining the preset switching condition according to the switching mode and the switching threshold.
In the above scheme, the method further comprises:
and obtaining a light path alarm message output by the electric layer board card, and switching a conduction path between each first device and the second device corresponding to the first device based on the light path alarm message.
An embodiment of the present invention further provides an electronic device, where the electronic device at least includes: a processor and a storage medium configured to store executable instructions, wherein: the processor is configured to execute stored executable instructions configured to perform the optical path protection method provided by the above-described embodiments.
The embodiment of the invention also provides a computer-readable storage medium, which stores executable instructions, and when the executable instructions are executed by a processor, the optical path protection method provided by the embodiment of the invention is realized.
In the embodiment of the invention, the optical path protection device with a plurality of controlled optical switch components and one control component is adopted to independently monitor the power parameters of the optical channels (the first transmission line and the second transmission line) of the optical path and automatically switch the corresponding optical channels according to the power parameters, so that the protection switching of multi-path optical signals is realized, and the influence of the switching of the optical channels of a plurality of optical paths is reduced, thereby meeting the rapidly increased service requirement.
Drawings
Fig. 1 is a schematic structural diagram of an optical path protection device provided in an embodiment of the present invention;
fig. 2 is a schematic flow chart of a method for protecting an optical path according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a multi-way OLP protection device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a connection of multiple OLP protection optical paths provided in the embodiment of the present invention;
fig. 5 is a schematic flowchart of a multi-way OLP protection method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, the described embodiments should not be construed as limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.
In the following description, references to the terms "first \ second \ third" are only to distinguish similar objects and do not denote a particular order, but rather the terms "first \ second \ third" are used to interchange specific orders or sequences, where appropriate, to enable embodiments of the invention described herein to be practiced in other than the order shown or described herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to be limiting of the invention.
The following describes an optical path protection apparatus provided in an embodiment of the present invention. Referring to fig. 1, fig. 1 is a schematic structural diagram of an optical path protection device provided in an embodiment of the present invention; in some embodiments, the optical path protection device may be applied to an optical fiber automatic switching protection system, and the optical path protection device 1000 provided in the embodiments of the present invention includes: a control module 110 and a multi-path protection module 120;
the multi-channel protection module 120 includes a plurality of controlled optical switch assemblies 130, and the controlled optical switch assemblies are connected to the control module 120; the controlled optical switch assembly comprises a first input terminal 1301, a second input terminal 1302 and an output terminal 1303, wherein the first input terminal 1301 is connected with a first device through a first transmission line; the second input 1302 is connected to the first device via a second transmission line; the output end 1303 is connected with a second device; the first equipment corresponds to the second equipment one by one; the controlled optical switch assembly is used for switching a conduction path between the first device and the second device;
the control module 120 is configured to obtain power parameters of the first input end 1301 and the second input end 1302, determine whether the power parameters meet a preset switching condition, and generate a control signal when the power parameters meet the preset switching condition;
and the multi-path protection module is used for changing the connection conduction state between the first input end and the second input end of the corresponding controlled optical switch component and the output end according to the control signal.
In an embodiment, the first device and the second device are an optical sending device and an optical receiving device, respectively, and a transmission path of an optical signal between the first device and the second device is an optical path corresponding to the optical signal.
In one embodiment, one controlled switch in the multi-path protection module can be used for protecting one optical path. The control module can respectively and independently control the controlled switches.
In one embodiment, the controlled optical switch module includes a plurality of input terminals and an output terminal, the plurality of input terminals are respectively connected to the plurality of cables carrying the output optical signals of the first device one by one, the output terminal is connected to the second device, and the controlled optical switch module switches the optical signal transmission path between the first device and the second device by turning on the connection between the selected input terminal and the selected output terminal. Wherein the controlled optical switch assembly includes, but is not limited to, a controllable multi-way optical switch.
In an embodiment, an output signal of the first device is subjected to optical splitting processing by an optical splitter to obtain a first optical signal and a second optical signal, and the first transmission line and the second transmission line are cables for transmitting the first optical signal and the second optical signal, respectively. In an embodiment, the cable comprises an optical fiber.
In one embodiment, the controlled optical switch assembly further comprises a controlled terminal for receiving the control signal. The control module is connected with the first input ends, the second input ends and the controlled ends of the controlled optical switch assemblies and used for obtaining the optical power of the first transmission line and the second transmission line. The preset switching condition may be set by a user, or may be a preset fixed switching condition. In some embodiments, the preset switching condition is a constraint condition set according to an actual requirement.
In an embodiment, when the optical powers of the first input terminal and the second input terminal of the controlled optical switch assembly satisfy the preset switching condition, the controlled optical switch assembly switches the conducting state of the connection between the first input terminal and the output terminal of the controlled optical switch assembly. For example: if the connection between the first input end and the output end of the current controlled optical switch assembly is in a conducting state and the connection between the second input end and the output end is in a disconnecting state, when the optical power of the first input end and the second input end of the controlled optical switch assembly meets the preset switching condition, the connection between the first input end and the output end of the controlled optical switch assembly is automatically disconnected, and the connection between the second input end and the output end is automatically conducted. Another example is: if the connection between the first input end and the output end of the current controlled optical switch assembly is in a disconnection state and the connection between the second input end and the output end is in a conduction state, when the optical power of the first input end and the second input end of the controlled optical switch assembly meets the preset switching condition, the connection between the first input end and the output end of the controlled optical switch assembly is automatically conducted, and the connection between the second input end and the output end is automatically disconnected.
In one embodiment, the plurality of input terminals of the controlled optical switch assembly cannot simultaneously conduct connections between more than two input terminals and output terminals.
In the embodiment of the invention, the optical path protection device with a plurality of controlled optical switch components and one control component is adopted to independently monitor the power parameters of the optical channels (the first transmission line and the second transmission line) of the optical path and automatically switch the corresponding optical channels according to the power parameters, so that the protection switching of multi-path optical signals is realized, and the influence of the switching of the optical channels of a plurality of optical paths is reduced, thereby meeting the rapidly increased service requirement.
In some embodiments, the control module comprises: the device comprises a sampling component, a filtering component and a switching component; the sampling assembly is connected with the controlled optical switch assemblies, and the filtering assembly is respectively connected with the sampling assembly and the switching assembly;
the sampling component is used for acquiring power data of the first transmission line and the second transmission line in real time;
the filtering component is used for filtering the power data to obtain the power parameter;
and the switching component is used for sending the control signal to the multi-path protection module when the power parameter meets a preset switching condition.
In one embodiment, the control module includes, but is not limited to, a processor with parallel processing functionality, e.g., a programmable device: a Field Programmable Gate Array (FP GA).
In an embodiment, the control module further includes a storage component, and the storage component is connected to the acquisition component and is configured to store the power data. The filtering unit weights and averages the power data and outputs the processed data to the switching assembly. The storage component includes, but is not limited to, a power register.
In one embodiment, the acquisition component continuously acquires power data of the first transmission line and the second transmission line, the filtering component filters the power data and outputs power parameters to the storage component, and the storage component refreshes the stored power parameters in real time based on the power parameters.
In one embodiment, the multi-channel protection device is mounted on a chassis and can share one chassis with a plurality of electrical layer cards.
In some embodiments, the apparatus further comprises: the parameter configuration module is connected with the control module;
the parameter configuration module is used for determining a switching mode and a switching threshold of the controlled optical switch component;
the control module is further configured to determine the preset switching condition according to the switching mode and the switching threshold.
In an embodiment, the switching mode includes an absolute switching mode and a relative switching mode. And the absolute switching mode and the relative switching mode both comprise: forced switching, manual switching and automatic switching 3 types of modes. The absolute switching mode and the relative switching mode respectively correspond to different switching thresholds.
In another embodiment, the switching modes include a forced switching mode, a manual switching mode, and an automatic switching mode, and each switching mode corresponds to a different switching threshold.
In an embodiment, the parameter configuration module is further configured to send the determined switching mode and/or switching threshold to the control module.
In an embodiment, the control module stores a preset switching condition corresponding to the switching mode, and when the control module receives the switching mode sent by the parameter configuration module, the control module can determine the preset switching condition corresponding to the switching mode and update the switching threshold parameter in the preset switching condition according to the switching threshold.
Specifically, in an embodiment, when the switching mode is the forced switching mode, the parameter configuration module directly sends the switching information input by the user to the control module, and the control module directly sends a control signal corresponding to the switching information to the controlled optical switch component of the multi-path protection module according to the switching information, controls the controlled optical switch component to perform the switching operation, and connects the first transmission line with the second device or connects the second transmission line with the second device. In one embodiment, the switching information is used to indicate a switching line selected by a user.
In an embodiment, when the switching mode is manual reverse, the control module determines whether the power parameter of the transmission line currently required to be switched is greater than a switching threshold, and controls the controlled optical switch module to perform the switching operation if the power parameter of the transmission line currently required to be switched is greater than the switching threshold.
In an embodiment, when the switching mode is automatic switching, the power parameters of the first transmission line and the second transmission line are compared with a switching threshold, and when the power parameter of the first transmission line is greater than or equal to the switching threshold and the power parameter of the second transmission line is smaller than the switching threshold, the controlled optical switch component switches on the connection between the first input end and the output end, and connects the first transmission line with the second device. When the power parameter of the first transmission line is smaller than the switching threshold and the power parameter of the second transmission line is larger than or equal to the switching threshold, the controlled optical switch component conducts the connection between the second input end and the output end, and the second transmission line is connected with the second device.
In an embodiment, the parameter configuration module is configured to determine a switching mode and a switching threshold of the controlled optical switch component in response to the user operation. In another embodiment, the parameter configuration module can individually set the switching mode and the switching threshold of each controlled optical switch component.
In another embodiment, the parameter configuration module is further configured to determine a switching condition of the controlled optical switch assembly in response to a setting operation of a user, and send the switching condition to the control module. The control module can control the switching operation of the corresponding controlled optical switch component in the multi-path protection module according to the received switching condition.
In an embodiment, the parameter configuration module is further configured to determine a switching mode of the controlled optical switch assembly and a switching condition corresponding to the switching mode in response to a setting operation of a user, and send the switching mode and the switching condition to the control module. And the control module updates the stored switching condition corresponding to the switching mode according to the received switching mode, stores the received switching mode and the corresponding switching condition if the switching mode does not exist in the control module, and controls the controlled optical switch component according to the switching condition.
In one embodiment, the parameter configuration module comprises: an operation panel and a communication module for configuring the switching mode, the switching threshold and the switching condition for the user. The parameter configuration module includes but is not limited to: a computer.
In some embodiments, the control module is further configured to: when the switching mode is a forced switching mode, sending a switching instruction to the multi-path protection module according to switching information output by the parameter configuration module, and controlling the corresponding controlled optical switch component to switch the conduction path. In an embodiment, the handover information includes at least one of: switching mode, switching threshold, switching condition.
In some embodiments, the parameter configuration module is further configured to: according to the power parameters at the power point before the conduction path is switched and after the conduction path is switched by the multi-path protection module, graphically displaying the change of the power parameters at the power point before and after switching; wherein the power point comprises: a first input, a second input, and an output of the controlled optical switch assembly.
In one embodiment, the control module collects power parameters of power points within a preset time before and after the controlled optical switch performs switching operation in real time, and sends the collected data to the parameter configuration module, and the parameter configuration module graphically displays the power parameter change of the power points. The preset duration is typically set to 80 ms.
In one embodiment, graphically displaying the change in the power parameter at the power point before and after the switching comprises: and drawing a change curve of the power parameters of the power points before and after switching in real time.
In the embodiment, through the display of the power parameters of the power points before and after the controlled optical switch component is switched, maintenance personnel can find problems in time to protect the normal transmission of optical signals.
In some embodiments, the parameter configuration module further comprises: and the display component is used for displaying data. Display components include, but are not limited to, liquid crystal displays.
In some embodiments, the control module is connected with a plurality of electrical layer boards;
the control module is further used for obtaining light path alarm information output by the electric layer board card and controlling the corresponding controlled optical switch assembly to switch the conduction path based on the light path alarm information.
In one embodiment, when the electric layer board card monitors that the signal transmission of the optical cable has faults such as instantaneous interruption and the like, light path alarm information is output, wherein the light path alarm information is used for indicating that the light path protected by the light path protection device is abnormal. And the control module can control the corresponding controlled optical switch component to switch the transmission route of the optical signal according to the optical path alarm information after receiving the optical path alarm information.
This embodiment, through the light path alarm information of electric layer integrated circuit board output, confirm whether current light path has the trouble to switch the light path when the light path breaks down, compare in the single judgement that passes through the light power value of light path, further promoted the security of light path, promoted light path protection device's protective properties.
In one embodiment, the apparatus further comprises a plurality of electrical layer cards coupled to the control module.
In some embodiments, the optical path protection device provided by the embodiment of the present invention may be applied to an optical fiber automatic switching protection system OLP, and in another embodiment, the optical path protection device provided by the embodiment of the present invention may also be applied to an OCH1+1 scene, so as to implement multi-path OLP line protection.
The following is a continuous description of the optical path protection method provided by the embodiment of the present invention. Referring to fig. 2, fig. 2 is a schematic flow chart of a method for protecting an optical path according to an embodiment of the present invention; in some embodiments, the optical path protection method may be applied to the optical path protection device, and the optical path protection method provided in an embodiment of the present invention includes:
s210: acquiring power parameters of a first transmission line and a second transmission line of each first device;
s220: judging whether the power parameters meet preset switching conditions or not, and switching conduction paths between the first equipment and second equipment corresponding to the first equipment under the condition that the power parameters meet the preset switching conditions.
In some embodiments, the method further comprises:
determining a switching mode and a switching threshold in response to a setting operation;
and determining the preset switching condition according to the switching mode and the switching threshold.
In an embodiment, the switching mode includes: a forced switching mode, a manual switching mode and an automatic switching mode.
In some embodiments, the setting operation comprises at least one of: selecting a switching mode; setting operation of a switching threshold; the operation of the optical signal transmission line is switched.
In an embodiment, the method further comprises: and responding to a setting operation, and determining a switching mode and the preset switching condition corresponding to the switching mode.
In some embodiments, the method further comprises:
and obtaining light path alarm information output by the electric layer board card, and switching a conduction path between each first device and the second device corresponding to the first device based on the light path alarm information.
In some embodiments, the method further comprises: and acquiring power parameters of the input ends of the first transmission line, the second transmission line and the second equipment, and graphically displaying the change of the power parameters before and after switching.
In an embodiment, the method further comprises: and analyzing power parameters of the first transmission line, the second transmission line and a signal receiving end of the second equipment to determine the stability of the switched optical signal.
In an embodiment, when a difference between a power value of the first transmission line or the second transmission line and a power value of the signal receiving end of the second device is smaller than a preset insertion loss threshold, it is determined that the switched optical signal is in a stable state.
The following are specific examples provided in connection with the above embodiments:
the traditional line side protection is that one OLP board card protects one optical fiber line side, and can not meet the rapidly-increased business requirement.
Based on this, the invention provides a multi-path OLP protection method and device, which can perform protection switching on multi-path OLP lines. The multi-path OLP protection device provided in this example is a high-density protection board card in an OCH1+1 scene, and is applied to an optical fiber automatic switching protection system, the multi-path OLP is independent, the switching of any one line in the multi-path OLP line does not affect the work of other OLP lines, for example, 6 lines may have switching at the same time, and the switching times cannot affect each other. The multi-path OLP protection device provided by the example is installed on a chassis and shares the same chassis with a plurality of electric layer boards.
In the optical fiber automatic switching protection system, the sending end of OLP equipment divides the service light 1 into 2, which are sent to the main working route and the standby working route respectively, and the receiving end of OLP compares the optical signals of the main working route (main route) and the standby working route (standby route), selects an available route for receiving, and selects a hot backup mechanism of double-sending-end single-end switching for preference. Two OLP devices are connected using optical fibers, which are referred to as "cables" in OLP routing.
The multi-way OLP protection device of the present example includes: the device comprises a plurality of optical switches, a programmable device connected with the optical switches and an upper computer connected with the programmable device. The structure of the multi-way OLP protection device is schematically shown in fig. 3.
The optical switch is used for switching the main path and the standby path of the OLP channel.
Each pair of line side optical ports (transmitting end and receiving end of optical signal) has an optical switch for switching the main and standby lines. The plurality of optical switches correspond to different OLP channels.
The programmable device can simultaneously monitor and protect multiple OLP channels in real time. Programmable devices include, but are not limited to: an FPGA device.
In this example, the programmable device may implement protection of the OLP channel using the max10 chip of altera. An ADC (Analog-to-Digital Converter) IP (intellectual Property) core and a flash memory (flash) are integrated in the max10, so that the complexity of external hardware of the FPGA is reduced, the monitoring and protection of the multiple OLP channels are well realized by utilizing the parallel processing capability of the FPGA, and the protection switching of each channel is independent and does not influence each other; the protection function can realize protection switching in an OLP board card uniformly, and is convenient for finding out problems, controlling the problems and solving the problems.
Illustratively, a schematic diagram of a multi-OLP protection optical circuit is shown in fig. 4. The 3-way OLP protection is illustrated as an example: the programmable device may use an altera FPGA max10, an AD (Analog-to-Digital) module of the programmable device has 9 channels, and the programmable device may sample the main and standby channels of the 3 channels of OLP channels and the power after passing through the optical switch, for example, the channels 1 to 3 channels of AD sample the main and standby channel powers R11 and R12 before the first channel of OLP channel optical switch and output the power R1x after passing through the optical switch; sampling main and standby channel power R21 and R22 before a second OLP channel optical switch and output power R2x after the second OLP channel optical switch by a channel 4-6 AD channel; channels 7-9 AD sampling the main and standby channel power R31 and R32 before the third OLP channel optical switch and the output power R3x after passing through the optical switch.
Specifically, the programmable device (FPGA) includes: the device comprises an OLP acquisition unit, an OLP mean value filtering unit and an OLP switching unit.
Under normal conditions, the OLP acquisition unit continuously acquires the power of the main and standby channels and the power after passing through the optical switch and refreshes the power register, the sampling value passes through the OLP mean value filtering unit to realize accumulation and mean value calculation of the AD value of each channel, and then the sampling value is output to the OLP switching unit.
When a line side is momentarily broken, the OLP switching unit performs OLP protection switching according to the main/standby power collected in real time and OLP protection switching conditions determined according to an OLP protection switching mode and a switching threshold value issued by an upper computer, and finally, switching of the main/standby lines is realized by controlling the optical switch. Specifically, the OLP switching unit compares the real-time collected main/standby power value with the switching threshold, and sends a switching instruction to the optical switch when the OLP protection switching condition is satisfied.
The upper computer is connected with the programmable device in a wired mode such as a network port or a serial port. The method comprises the steps that an upper computer sends a determined OLP protection switching mode and a switching threshold value to a programmable device in a wired mode, the OLP protection switching mode can be divided into absolute mode switching and relative mode switching, the switching threshold value is divided into an absolute switching threshold value and a relative switching threshold value, and the absolute switching threshold value is used as the switching threshold value in the absolute switching mode; in the relative switching mode, the switching threshold uses a relative switching threshold.
When the main path or the standby path of the OLP channel is momentarily broken, the programmable device controls the corresponding optical switch to switch the OLP channel according to the power values of the main path and the standby path acquired in real time and the OLP protection switching condition determined based on the OLP protection switching mode and the switching threshold value issued by the upper computer; and when the switching is finished, the power values of the power points before and after the switching are refreshed and reported to the upper computer. The upper computer can draw the change curve of the power point of the optical switch before and after switching in real time, and maintenance personnel can find problems in time. The power points are the input and output of the optical switch.
In this example, according to the number of optical paths output by the electrical layer card in the chassis, the control program may be further customized in the programmable device, that is, according to the number of lines to be protected by the electrical layer card in the chassis, the number of main and standby lines to be protected by the multi-path OLP protection device may be customized.
The multi-path OLP protection method provided in this example samples the multi-path power detection points to obtain the power value of each optical path, and determines whether each of the OLP protection switching conditions is satisfied according to the OLP protection switching mode and the switching threshold, and if so, performs switching of the optical switch, otherwise does not perform switching of the optical switch.
Fig. 5 is a schematic flow chart of a multi-way OLP protection method according to an embodiment of the present invention. The method comprises the following steps:
step S501, the upper computer configures an OLP protection switching mode and a switching threshold.
In step S502, the programmable device determines an OLP protection switching condition according to the OLP protection switching mode and the switching threshold.
Step S503, obtaining the power value of each optical path, determining whether the OLP protection switching condition is satisfied, and if so, executing switching optical switch.
As shown in fig. 4, the optical path 1 sending device sends one optical signal to pass through the optical splitter, outputs two optical signals, namely, a main optical signal and a standby optical signal, and transmits the two optical signals to the remote device through two cables, the programmable device samples the optical signals of the main and standby optical signals and compares the sampled optical signals with the switching threshold, and when the OLP protection switching condition is satisfied, performs switching optical switching to select one optical signal with better quality to the optical path 1 receiving device, thereby implementing protection of the optical link of the optical path 1; in the same way, the programmable device performs the same protection process on the optical path 2 and the optical path x. The programmable device can perform protection switching on multiple OLP channels in parallel, and each protection switching path is independent.
OLP protection switching mode: the method comprises two categories of absolute switching mode and relative switching mode; the absolute switching mode and the relative switching mode both comprise 3 types of modes of forced switching, manual switching and automatic switching, wherein the forced switching and the manual switching are realized by a user sending a command through an upper computer to switch the optical switch, and the switching of the optical switch in the automatic switching mode is determined by a judgment result of a switching condition of the programmable device.
The OLP switching threshold includes an absolute switching threshold abs _ thd and a relative switching threshold rela _ thd.
Judging whether the OLP protection switching condition meets the method: according to the OLP protection switching mode, the method is implemented by comparing the main/standby power values with the switching threshold value:
the absolute switching mode includes 3 types of modes of forced switching, manual switching and automatic switching.
And (4) forced switching (forced switching to a main circuit or forced switching to a standby circuit) directly executing switching of the optical switch.
And (3) manual switching: and judging whether the power value of the current optical path to be switched is greater than the absolute switching threshold value, if so, switching the optical switch, otherwise, not switching.
Automatic switching: comparing the power values of the main and standby paths with an absolute threshold, and when the main path power value R1 is not less than the main path absolute switching threshold abs _ thd1, that is, R1> -abs _ thd1, the standby path power value R2 is less than the standby path absolute switching threshold abs _ thd2, that is, R2< abs _ thd 2; when the two conditions are met simultaneously, the standby optical signal is abnormal, and the main optical signal is normal, the optical switch is switched to the main path; when the main path power value R1 is smaller than the main path absolute switching threshold abs _ thd1, i.e., R1< abs _ thd1, the standby path power value R2 is not smaller than the standby path absolute switching threshold abs _ thd2, i.e., R2> -abs _ thd 2; when the two conditions are met simultaneously, the main path optical signal is abnormal, and the standby path optical signal is normal, the optical switch is switched to the standby path.
The relative switching mode includes 3 types of modes of forced switching, manual switching and automatic switching.
And (4) forced switching (forced switching to a main circuit or forced switching to a standby circuit) directly executing switching of the optical switch.
And (3) manual switching: and judging whether the power value of the current optical path to be switched is greater than the relative switching threshold value, if so, switching the optical switch, otherwise, not switching.
Automatic switching: comparing the power values of the main and standby circuits with a relative threshold, and executing the optical switch to the main circuit when the difference value between the main circuit power value R1 and the standby circuit power value R2 is not less than the relative switching threshold value rela _ thd, namely R1-R2> -rela _ thd; when the difference between the standby power value R2 and the main power value R1 is not less than the relative switching threshold value rela _ thd, i.e., R2-R1> -rela _ thd, the optical switch is switched to the standby.
The multi-path OLP protection method and apparatus proposed in this example can perform protection switching on a multi-path OLP line; as a high-density protection board card in the OCH1+1 scenario, multiple OLPs are independent, where 1-way switching does not affect the operation of other ways, for example, 6 ways may have switching at the same time, and the switching times cannot affect each other.
An embodiment of the present invention further provides an electronic device, where the electronic device at least includes: a processor and a storage medium configured to store executable instructions, wherein:
the processor is configured to execute stored executable instructions configured to perform the optical path protection method provided by the embodiments of the present invention.
It should be noted that fig. 6 is a schematic structural diagram of an electronic device provided in an embodiment of the present application, and as shown in fig. 6, the device 600 at least includes: a processor 610, a communication interface 620, and a memory 630, wherein:
the processor 610 generally controls the overall operation of the device 600.
The Memory 630 is configured to store instructions and applications executable by the processor 610, and may also buffer data (e.g., image data, audio data, voice communication data, and video communication data) to be processed or already processed by the processor 610 and modules in the device 600, and may be implemented by a FLASH Memory (FLASH) or a Random Access Memory (RAM).
It should be noted that, in the embodiment of the present application, if the optical path protection method is implemented in the form of a software functional module and is sold or used as a standalone product, the optical path protection method may also be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a server to execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the present application are not limited to any specific combination of hardware and software.
Correspondingly, the embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps in the optical path protection method provided by the above embodiment.
Here, it should be noted that: the above description of the storage medium and device embodiments is similar to the description of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the storage medium and apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.
Of course, the apparatus in the embodiment of the present application may have other similar protocol interaction implementation cases, and those skilled in the art can make various corresponding changes and modifications according to the embodiment of the present application without departing from the spirit and the spirit of the present application, but these corresponding changes and modifications should fall within the scope of the claims appended to the method of the present application.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the modules is only one logical functional division, and there may be other division ways in actual implementation, such as: multiple modules or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or modules may be electrical, mechanical or other.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules; the network module can be located in one place or distributed on a plurality of network modules; some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above description is only for the embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (11)
1. An optical path protection device, comprising: the system comprises a control module and a multi-path protection module;
the multi-path protection module comprises a plurality of controlled optical switch assemblies, and the controlled optical switch assemblies are connected with the control module; the controlled optical switch assembly comprises a first input end, a second input end and an output end, wherein the first input end is connected with first equipment through a first transmission line; the second input end is connected with the first equipment through a second transmission line; the output end is connected with second equipment; the first equipment corresponds to the second equipment one by one; the controlled optical switch assembly is used for switching a conduction path between the first device and the second device;
the control module is configured to obtain power parameters of the first input end and the second input end, determine whether the power parameters meet preset switching conditions, and generate a control signal when the power parameters meet the preset switching conditions;
and the multi-path protection module is used for changing the connection conduction state between the first input end and the second input end of the corresponding controlled optical switch component and the output end according to the control signal.
2. The apparatus of claim 1, wherein the control module comprises: the device comprises a sampling component, a filtering component and a switching component; the sampling assembly is connected with the controlled optical switch assemblies, and the filtering assembly is respectively connected with the sampling assembly and the switching assembly;
the sampling component is used for acquiring power data of the first transmission line and the second transmission line in real time;
the filtering component is used for filtering the power data to obtain the power parameter;
and the switching component is used for sending the control signal to the multi-path protection module when the power parameter meets a preset switching condition.
3. The apparatus of claim 1, further comprising: the parameter configuration module is connected with the control module;
the parameter configuration module is used for determining a switching mode and a switching threshold of the controlled optical switch component;
the control module is further configured to determine the preset switching condition according to the switching mode and the switching threshold.
4. The apparatus of claim 3, wherein the parameter configuration module is further configured to: according to the power parameters at the power point before the conduction path is switched and after the conduction path is switched by the multi-path protection module, graphically displaying the change of the power parameters at the power point before and after switching; wherein the power point comprises: a first input, a second input, and an output of the controlled optical switch assembly.
5. The apparatus of claim 3, wherein the control module is further configured to: when the switching mode is a forced switching mode, sending a switching instruction to the multi-path protection module according to switching information output by the parameter configuration module, and controlling the corresponding controlled optical switch component to switch the conduction path.
6. The apparatus of claim 1, wherein the control module is coupled to a plurality of electrical layer cards;
the control module is further used for obtaining light path alarm information output by the electric layer board card and controlling the corresponding controlled optical switch assembly to switch the conduction path based on the light path alarm information.
7. An optical path protection method is applied to an optical path protection device, and is characterized by comprising the following steps:
acquiring power parameters of a first transmission line and a second transmission line of each first device;
judging whether the power parameters meet preset switching conditions or not, and switching conduction paths between the first equipment and second equipment corresponding to the first equipment under the condition that the power parameters meet the preset switching conditions.
8. The method of claim 7, further comprising:
determining a switching mode and a switching threshold in response to a setting operation;
and determining the preset switching condition according to the switching mode and the switching threshold.
9. The method of claim 7, further comprising:
and obtaining a light path alarm message output by the electric layer board card, and switching a conduction path between each first device and the second device corresponding to the first device based on the light path alarm message.
10. An electronic device, characterized in that the device comprises at least: a processor and a storage medium configured to store executable instructions, wherein:
the processor is configured to execute stored executable instructions configured to perform the optical path protection method provided by any of the above claims 7 to 9.
11. A computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, and the computer-executable instructions are configured to execute the optical path protection method provided by any one of the above claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111136963.0A CN113890599B (en) | 2021-09-27 | 2021-09-27 | Optical path protection device, optical path protection method, electronic equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111136963.0A CN113890599B (en) | 2021-09-27 | 2021-09-27 | Optical path protection device, optical path protection method, electronic equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113890599A true CN113890599A (en) | 2022-01-04 |
| CN113890599B CN113890599B (en) | 2023-05-05 |
Family
ID=79007122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111136963.0A Active CN113890599B (en) | 2021-09-27 | 2021-09-27 | Optical path protection device, optical path protection method, electronic equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113890599B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115021803A (en) * | 2022-06-02 | 2022-09-06 | 中国电信股份有限公司 | Optical channel protection method, device and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2312499A1 (en) * | 1999-07-12 | 2001-01-12 | The Furukawa Electric Co., Ltd. | Optical line switching system |
| CN110995336A (en) * | 2019-11-15 | 2020-04-10 | 武汉光迅信息技术有限公司 | OLP transmission link switching method and device, storage medium and OLP |
| CN111917462A (en) * | 2020-06-23 | 2020-11-10 | 深圳震有科技股份有限公司 | Protection control method and device for 5G forward transmission equipment and computer equipment medium |
| CN112953641A (en) * | 2021-02-09 | 2021-06-11 | 长飞光纤光缆股份有限公司 | OPEN-WDM device and control method |
| CN113098597A (en) * | 2021-03-31 | 2021-07-09 | 北京百度网讯科技有限公司 | Optical protection device and optical power detection method |
-
2021
- 2021-09-27 CN CN202111136963.0A patent/CN113890599B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2312499A1 (en) * | 1999-07-12 | 2001-01-12 | The Furukawa Electric Co., Ltd. | Optical line switching system |
| CN110995336A (en) * | 2019-11-15 | 2020-04-10 | 武汉光迅信息技术有限公司 | OLP transmission link switching method and device, storage medium and OLP |
| CN111917462A (en) * | 2020-06-23 | 2020-11-10 | 深圳震有科技股份有限公司 | Protection control method and device for 5G forward transmission equipment and computer equipment medium |
| CN112953641A (en) * | 2021-02-09 | 2021-06-11 | 长飞光纤光缆股份有限公司 | OPEN-WDM device and control method |
| CN113098597A (en) * | 2021-03-31 | 2021-07-09 | 北京百度网讯科技有限公司 | Optical protection device and optical power detection method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115021803A (en) * | 2022-06-02 | 2022-09-06 | 中国电信股份有限公司 | Optical channel protection method, device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113890599B (en) | 2023-05-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5712942A (en) | Optical communications system having distributed intelligence | |
| CN1251429C (en) | Passive light network device | |
| US8244123B2 (en) | System and method for optical transmission | |
| CN103222213B (en) | Wavelength-multiplexed optical transport system, transmitter device and receiver device | |
| EP2466800A2 (en) | Electronic patch apparatus, network system, and operating method in a network system | |
| CN104221311A (en) | An arrangement at a remote node, a remote node, a central office and respective methods therein for supervision of a wavelength division multiplexed passive optical network | |
| CN106788699A (en) | The detecting system and method and ROADM equipment of optical fiber connection status | |
| US20160203930A1 (en) | Power feed line switching circuit, branching device, submarine cable system, and power feed line switching method | |
| CN113890599B (en) | Optical path protection device, optical path protection method, electronic equipment and storage medium | |
| US20130073232A1 (en) | Source Power Anomaly and Load Power Consumption Monitoring and Analysis | |
| CN108270479A (en) | A kind of light back board system and optical channel control method | |
| CN107809278B (en) | Optical fiber protection device and method of electric passive optical network | |
| JP2005318567A (en) | Optical transmission system, optical repeating apparatus and quality supervising method | |
| CN104521159A (en) | Wavelength multiplexing device, impairment occurrence location identification method and program | |
| US9112617B2 (en) | Method and device for monitoring a detachable fiber-optic connection, especially in a fiber-optic transmission device or system | |
| CN114816092A (en) | Output card compensator based on KVM (keyboard, video and mouse) seat and compensation method | |
| CN114745517A (en) | Double-machine control switcher, video transmission system and train control display system | |
| US6912337B2 (en) | Network healing smart fiber optic switch | |
| CN101217496A (en) | A data transmission method, system and device | |
| EP4037206A1 (en) | Submarine device, submarine device monitoring method, and optical communication system | |
| KR100893752B1 (en) | Terminal board using monitoring system of fiber line | |
| JP2002353907A (en) | Method for detecting fault occurrence spot in optical communication network and optical communication system | |
| CN102893531B (en) | Wireless communication apparatus and wireless communication method | |
| CN111277301B (en) | Power communication fault analysis method and system based on N-X principle | |
| CN115882935A (en) | Optical line protector and optical line protection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |