CN207304564U - With Backup lightpath and failure can self-healing double mode optic-fiber monitoring system - Google Patents

Abstract

With Backup lightpath and failure can self-healing double mode optic-fiber monitoring system; it is related to Fiber-optic Communication In Electric Power System field; solving existing power optical fiber monitoring device, there are monitoring pattern fixed single; the problems such as faulty line manual switching causes long-time fiber optic communication to be interrupted not in time; including at least one monitoring unit; each monitoring unit monitors a fibre circuit; realize the free switching of the monitoring of work fibre core and inoperative fibre core monitoring pattern, the vibration monitoring of protection fibre core for the fibre core that works and the self-healing of failure fibre core light path are automatically switched；Each monitoring unit is made of originator monitoring subelement and receiving end monitoring subelement, multiple originator monitoring subelements share originator light path handover module, and multiple receiving end monitoring subelements share control processor, data acquisition module, Optical Power Monitor Module, light detection module, inoperative fibre core monitoring modular, receiving end light path handover module, OTDR, vibrating alert module, light alarm module, the 6th photoswitch and the 7th photoswitch.

Description

Dual-mode optical fiber monitoring system with protection optical path and fault self-healing

technical field

The utility model relates to the field of optical fiber communication in power systems, in particular to a dual-mode optical fiber monitoring system with a protective optical path and self-healing faults.

Background technique

Because optical fiber communication has the characteristics of large capacity, low loss, and high speed, it has been widely used in power system communication. The power optical fiber communication private network can transmit more and more complex information, ensuring the reliability and reliability of the power optical fiber communication network. Availability is an important guarantee for safe production and efficient operation of power systems.

Since the power optical fiber communication network has the characteristics of high coverage, dense network, difficult maintenance, and great impact of failure, especially the optical fiber laying environment of the urban power system is more complicated and is easily affected by construction, etc. Once the optical fiber line in the power optical fiber transmission network fails , The communication interruption caused will affect the safe operation of the power company and bring great economic losses to the power company. Therefore, the optical fiber communication monitoring of power system needs to improve the degree of automation and intelligence. Most of the existing optical fiber monitoring equipment only provides a single function of optical power monitoring or fault detection, and the cost of the equipment is high. In order to improve the operation level of the optical fiber line, the online monitoring of the working fiber core is abandoned, and the non-working fiber core is used to monitor the optical fiber line. At this time, the online monitoring equipment of the working fiber core cannot meet the requirements. Once the power optical fiber communication system needs to change the non-working fiber core to the working fiber core due to the increase of business volume, the non-working fiber core monitoring equipment cannot operate. At the same time, when the existing optical fiber monitoring equipment detects the failure of the optical fiber line, the staff needs to go to the power communication room to manually implement the connection and configuration involved in the switching of the faulty optical fiber line. Losses such as long-term interruptions make it difficult to meet the needs of fiber optic monitoring automation and automatic fault removal. At the same time, its reliability is also difficult to meet the needs of some special fields.

Utility model content

The utility model solves the problem that the existing power optical fiber monitoring equipment has a fixed and single monitoring mode, only monitors the optical power of the optical fiber or monopolizes the monitoring mode of the fiber core, and cannot realize automatic and free switching of the working mode, which wastes optical fiber resources and manual labor. The low degree of sharing leads to high equipment costs, and the failure of manual switching of faulty lines leads to long-term fiber optic communication interruptions. A dual-mode fiber optic monitoring system with protective optical paths and self-healing faults is provided.

Dual-mode optical fiber monitoring system with protection optical path and fault self-healing, including at least one monitoring unit, each monitoring unit monitors an optical fiber line, and can realize free switching between working fiber core monitoring and non-working fiber core monitoring modes, working fiber Core protection Vibration monitoring of the fiber core and self-healing automatic switching of the optical path of the faulty fiber core;

Each monitoring unit is composed of a sending-end monitoring subunit and a receiving-end monitoring subunit, and multiple sending-end monitoring subunits share the sending-end optical path switching module, and each sending-end monitoring subunit includes a first wavelength division multiplexer and a first optical switch;

Multiple receiving end monitoring sub-units share control processor, data acquisition module, optical power monitoring module, optical detection module, non-working fiber core monitoring module, receiving end optical path switching module, OTDR, vibration alarm module, optical alarm module, sixth The optical switch and the seventh optical switch; each receiving end monitoring subunit includes an optical fiber vibration monitoring module, a second optical switch, a third optical switch, a fourth optical switch, a fifth optical switch, a second wavelength division multiplexer and an optical splitter device;

The control processor is respectively connected to the data acquisition module, the optical power monitoring module, the non-working fiber core monitoring module, the optical detection module, the optical fiber vibration monitoring module, the receiving end optical path switching module, the optical alarm module and the vibration alarm module through the electrical interface;

The control processor is connected to the information interaction bus through the RJ45 network port, and is connected with the optical path switching module at the sending end to realize remote control of the optical path switching module at the sending end; and is connected with the application server and the data server to realize remote control;

The data acquisition module is connected with the optical power monitoring module, optical fiber vibration monitoring module and OTDR through the electrical interface; realizes the collection of the optical power monitoring data of the working fiber core, the vibration monitoring data of the protection fiber core of the working fiber core and the monitoring data of the non-working fiber core;

The optical alarm module is connected to the data acquisition module through the electrical interface to realize the monitoring fiber core optical path failure alarm; the vibration alarm module is connected to the data acquisition module through the electrical interface to realize the protection of the working fiber core and the vibration failure alarm of the fiber core;

The optical power monitoring module is connected to the seventh optical switch through the optical interface, and the seventh optical switch realizes the optical power monitoring of the working fiber core by connecting the optical splitter;

The non-working fiber core monitoring module is connected to the OTDR through the electrical interface to realize the monitoring of the non-working fiber core;

The optical fiber vibration monitoring module is connected to the fifth optical switch through an optical interface to realize vibration monitoring of the working core and the protection core of the core group;

The optical detection module is connected to the OTDR through the electrical interface, and through the control of the OTDR, the fault detection of the working fiber core is realized;

The optical path switching module at the sending end is connected to the first optical switch through the electrical interface, and the optical path switching module at the receiving end is connected to the second optical switch, the third optical switch, the fourth optical switch, the sixth optical switch, and the seventh optical switch through the electrical interface, realizing Monitoring mode switch selection;

The receiving-end optical path switching module is connected to the fifth optical switch through an electrical interface to realize the selection of the working fiber core protection fiber core vibration monitoring mode;

The optical path switching module at the sending end is connected to the first optical switch through the electrical interface, and the optical path switching module at the receiving end is connected to the second optical switch and the fifth optical switch through the electrical interface, so as to realize the self-healing and automatic switching of the faulty working fiber core line to the protection line.

Beneficial effects of the utility model: the optical fiber monitoring system described in the utility model provides power system optical fiber communication with two monitoring modes: working fiber core monitoring with protection and non-working fiber core monitoring, and working fiber core faults can be self-healing Optical fiber line monitoring equipment, realize remote free and automatic switching of the monitoring equipment detection unit between the two monitoring modes, realize automatic switching of the faulty line in the event of a working optical fiber line failure, and automatic detection of fiber core failures, as well as monitoring of the working fiber The vibration monitoring of the core protection fiber core improves the reliability of the protection line, improves the sharing of components in the equipment on the basis of ensuring the function, and reduces the equipment cost. Problems such as communication interruption caused by untimely recovery of faulty lines ensure the normal operation of power optical fiber line communication and meet the needs of various monitoring fields.

Description of drawings

Fig. 1 is a schematic structural diagram of a dual-mode optical fiber monitoring system with a protective optical path and fault self-healing described in the present invention.

Fig. 2 is a schematic diagram of the relationship between modules in the self-healing dual-mode optical fiber monitoring system with a protected optical path according to the present invention.

Detailed ways

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 1. This embodiment is described in conjunction with FIG. 1 and FIG. 2, a dual-mode optical fiber monitoring system with a protective optical path and self-healing faults. The monitoring system includes at least one monitoring unit, and each monitoring unit includes a sending end monitoring subunit and a monitoring unit. The receiving end monitoring subunit, the sending end monitoring subunit includes a first optical switch and the first wavelength division multiplexer, the receiving end monitoring subunit includes an optical fiber vibration monitoring module, a second optical switch, a third optical switch, a fourth optical switch, The fifth optical switch, the second wavelength division multiplexer and optical splitter, each unit shares the control processor, data acquisition module, optical power monitoring module, non-working fiber core monitoring module, optical detection module, transmitting end optical path switching module, receiving end Optical path switching module, optical alarm module, vibration alarm module, sixth optical switch, seventh optical switch and OTDR. in:

The control processor is respectively connected with the data acquisition module, optical power monitoring module, non-working fiber core monitoring module, optical fiber vibration monitoring module, optical detection module, receiving end optical path switching module, optical alarm module, and vibration alarm module through electrical interfaces. The interactive bus is connected with the optical path switching module at the sending end to jointly realize the control of each sub-module, and then access the information interactive bus through the RJ45 network port, and connect with the application server and data server to realize remote control; the data acquisition module communicates with the non-working The fiber core monitoring module, the optical power monitoring module and the OTDR are connected to realize the collection of non-working fiber core monitoring data, optical power data and non-working fiber core monitoring data; the optical power monitoring module is connected to the seventh optical switch through the optical interface, and through Connect the optical splitter to realize the optical power monitoring of the working fiber core; the non-working fiber core monitoring module is connected to the OTDR through the electrical interface, and realize the monitoring of the non-working fiber core through the sixth optical switch; the fiber vibration monitoring module is connected to the fifth optical switch through the optical interface Connected to realize the vibration monitoring of the working fiber core and the protection fiber core in the fiber core group; the optical detection module is connected to the OTDR through the electrical interface, and realizes the fault detection of the working fiber core through the control of the OTDR;

The optical path switching module at the sending end is connected to the first optical switch through the electrical interface, and the optical path switching module at the receiving end is connected to the second optical switch, the third optical switch, the fourth optical switch, the sixth optical switch, and the seventh optical switch through the electrical interface, realizing Equipment monitoring mode switching selection; the optical path switching module at the receiving end is connected to the fifth optical switch through an electrical interface to realize the selection of the working fiber core protection fiber core vibration monitoring mode;

The optical path switching module at the sending end is connected to the first optical switch through the electrical interface, and the optical path switching module at the receiving end is connected to the second optical switch and the fifth optical switch through the electrical interface, so as to realize the self-healing and automatic switching of the working fiber core fault line to the protection fiber core line ;

The optical alarm module is connected with the data acquisition module through the electrical interface to realize the monitoring optical path failure alarm; the vibration alarm module is connected with the data acquisition module through the electrical interface to realize the protection of the working fiber core and the vibration failure alarm of the fiber core;

The dual-mode optical fiber monitoring system with protection optical path and fault self-healing described in this embodiment can refer to the working fiber core monitoring with protection and its protection fiber core vibration monitoring and non-working fiber core monitoring. switch freely. When the power system communication traffic increases and the idle non-working fiber core needs to be changed to the working fiber core, the monitoring system can remotely complete the switching of the corresponding unit of the monitoring equipment from the non-working fiber core monitoring mode to the working fiber monitoring mode; when in order to improve monitoring The independence of the system ensures the communication accuracy of the working fiber core, and the system can remotely switch from the working fiber core monitoring mode with protection to the non-working fiber core monitoring mode.

The first wavelength division multiplexer described in this implementation manner is a wavelength splitter. The first optical switch is a 1×2 optical switch, and the second optical switch is a 1×2 optical switch. The second wavelength division multiplexer is a multiplexer, the third optical switch is a 1×2 optical switch, and the optical splitter is a 1×2 optical splitter. The fourth optical switch is a 1×2 optical switch. The fifth optical switch is a 1×2 optical switch. The sixth optical switch is a 1×n optical switch. The seventh optical switch is a 1×n optical switch.

Described control processor adopts the single-chip microcomputer that model is STM32F205, and described data acquisition module adopts the chip that model is LTC2348-18, and described optical fiber vibration monitoring module is the optical fiber vibration detector of RJ45 interface, and described optical detection module adopts The model is the STM8S105 series single-chip microcomputer, the non-working fiber core monitoring module adopts the STM8S105 series single-chip microcomputer, the optical power monitoring module is an RS232 interface optical power meter, and the receiving end optical path switching module adopts the STM8S103 series model The single-chip microcomputer, the optical alarm module adopts MDZ12 series chips, and the vibration alarm module adopts MDZ12 series chips. The optical path switching module at the transmitting end adopts a single-chip microcomputer modeled as STM8S103 series.

Specific Embodiment 2. This embodiment is described in conjunction with FIG. 1 and FIG. 2. This embodiment is an embodiment of the dual-mode optical fiber monitoring system with a protected optical path and fault self-healing described in Embodiment 1. In FIG. 1, black Thick connection lines represent fiber cores and optical paths, and black thin connection lines represent data connections. The system equipment is divided into n monitoring units, and the monitoring unit i includes the sending end monitoring subunit i_1 and the receiving end monitoring subunit i_2, 1≤i≤n, and the sending end monitoring subunit includes the first wavelength division multiplexer, the first optical switch , the sending end monitoring subunit 1_1, subunit 2_1...subunit n-1 share the sending end optical path switching module; the receiving end monitoring subunit includes an optical fiber vibration monitoring module, a second optical switch, a second wavelength division multiplexer, and a third optical switch , optical splitter, fourth optical switch, fifth optical switch, receiving end monitoring subunit 1_2, subunit 2_2...subunit n_2 share control processor, data acquisition module, optical power monitoring module, non-working fiber core monitoring module, optical Detection module, receiving end optical path switching module, optical alarm module, vibration alarm module, sixth optical switch, seventh optical switch and OTDR, each monitoring unit can realize two working modes monitoring of one optical fiber core and working fiber Core fault optical path self-healing switching function.

The application server controls the sending end optical path switching module through the control processor to make the first optical switch select the fiber core group to monitor the fiber core optical path b, and controls the receiving end optical path switching module through the control processor to make the second optical switch select the fiber core group to monitor the fiber core Optical path f, optical path g selected by the third optical switch, optical path i selected by the fourth optical switch, optical path b selected by the fifth optical switch, optical path a1 selected by the sixth optical switch, optical path b1 selected by the seventh optical switch, the monitoring unit of the monitoring device at this time 1 is in working mode 1; the application server controls the optical path switching module at the sending end through the control processor to make the first optical switch select the fiber core group to monitor the optical path a of the fiber core, and controls the optical path switching module at the receiving end through the control processor to make the second optical switch select the fiber core The group monitors the fiber core optical path c, the third optical switch selection optical path h, the fourth optical switch selection optical path j, and the sixth optical switch selection optical path a1. At this time, the monitoring unit 1 of the monitoring device is in the working mode 2. According to the needs of optical fiber communication monitoring in the power system, different monitoring units of the equipment can independently select different monitoring modes, and the two monitoring working modes of each monitoring unit can be switched to each other, realizing remote fiber optic line monitoring with free switching working modes.

When the monitoring unit 1 of the monitoring device is in working mode 2, the application server controls the optical path switching module at the sending end through the control processor to make the first optical switch select the fiber core group protection core optical path b, and controls the optical path switching at the receiving end through the control processor The module enables the second optical switch to select the optical path f of the fiber core group protection fiber, and the fifth optical switch to select the optical path d. At this time, the monitoring unit 1 of the monitoring equipment realizes the self-healing switching of the faulty optical path of the working fiber core, realizes continuous communication of the optical fiber line, and improves the optical path of the optical fiber line. Communication reliability and availability.

The working mode 1 is a non-working fiber core monitoring mode, and the working mode monitoring principle is as follows: in Fig. 1, the non-working fiber core from the optical distribution frame is connected to the monitoring unit 1 of the device through the optical interface, and the first The wavelength division multiplexer is connected; the second wavelength division multiplexer multiplexes the OTDR monitoring light into the non-fiber core for monitoring, and the first wavelength division multiplexer demultiplexes the OTDR monitoring light; the control processor controls the non-working fiber core The monitoring module starts the OTDR to monitor the non-working fiber core, and controls the data acquisition module to collect the OTDR monitoring data; the data acquisition module uploads the collected OTDR monitoring data to the data server through the control processor; the optical alarm module realizes the failure of the non-working fiber core Alarm; the optical alarm module uploads the alarm information to the data server through the control processor, so that the monitoring unit 1 of the monitoring equipment can remotely monitor the optical fiber lines of the power system in the working mode 1.

The working mode 2 described is a working fiber core monitoring mode with protection, and the working mode monitoring principle is as follows: in Fig. 1, the working fiber core containing service data from the optical transceiver is connected to the monitoring unit 1 of the device through the optical interface, and The first wavelength division multiplexer is connected; the optical path of the working fiber core is divided into a communication optical path and a monitoring optical path through the optical splitter; the control processor controls the optical power monitoring module to monitor the monitoring optical path of the working fiber core through the seventh optical switch, and controls data acquisition. The module collects optical power data; the optical fiber vibration monitoring module monitors the vibration of the protection core of the working fiber core in the fiber core group through the fifth optical switch, and collects the optical fiber vibration data through the data acquisition module; the data acquisition module collects the collected optical power data and vibration data are uploaded to the data server through the control processor;

The optical alarm module realizes the fault alarm of the working optical fiber line; and uploads the optical alarm information to the application server and the data server through the control processor; the control processor controls the second optical switch to select the optical path e and the fifth optical switch through the optical path switching module at the receiving end Select optical path d; the control processor realizes the first optical switch to select optical path a through the optical path switching module at the sending end; realizes automatic switching of the faulty optical path of the working fiber core to the protection fiber core; the optical detection module starts the OTDR, and the second wavelength division multiplexer detects the OTDR The light is multiplexed into the working fiber core for fault detection of the working fiber core, and the first wavelength division multiplexer demultiplexes the OTDR detection light, which does not affect the work of the optical transceiver; and the fault detection result data is uploaded to the data server through the control processor, Realize the remote monitoring of the state of the optical fiber line of the power system by the monitoring unit 1 in the working mode 2.

The control processor controls the optical path switching module at the sending end through the information interaction bus, which can be realized by directly controlling the optical path switching module at the sending end through the information interaction bus by the application server.

Claims (2)

1. Dual-mode optical fiber monitoring system with protection optical path and fault self-healing, including at least one monitoring unit, each monitoring unit monitors one optical fiber line, and realizes free switching between working fiber core monitoring and non-working fiber core monitoring modes, working fiber Core protection, vibration monitoring of the fiber core and self-healing and automatic switching of the optical path of the faulty fiber core; its characteristics are; Each monitoring unit is composed of a sending-end monitoring subunit and a receiving-end monitoring subunit, and multiple sending-end monitoring subunits share the sending-end optical path switching module, and each sending-end monitoring subunit includes a first wavelength division multiplexer and a first optical switch; Multiple receiving end monitoring sub-units share control processor, data acquisition module, optical power monitoring module, optical detection module, non-working fiber core monitoring module, receiving end optical path switching module, OTDR, vibration alarm module, optical alarm module, sixth The optical switch and the seventh optical switch; each receiving end monitoring subunit includes an optical fiber vibration monitoring module, a second optical switch, a third optical switch, a fourth optical switch, a fifth optical switch, a second wavelength division multiplexer and an optical splitter device; The control processor is respectively connected to the data acquisition module, the optical power monitoring module, the non-working fiber core monitoring module, the optical detection module, the optical fiber vibration monitoring module, the receiving end optical path switching module, the optical alarm module and the vibration alarm module through the electrical interface; The control processor is connected to the information interaction bus through the RJ45 network port, and is connected with the optical path switching module at the sending end to realize remote control of the optical path switching module at the sending end; and is connected with the application server and the data server to realize remote control; The data acquisition module is connected with the optical power monitoring module, optical fiber vibration monitoring module and OTDR through the electrical interface; realizes the collection of the optical power monitoring data of the working fiber core, the vibration monitoring data of the protection fiber core of the working fiber core and the monitoring data of the non-working fiber core; The optical alarm module is connected to the data acquisition module through the electrical interface to realize the monitoring fiber core optical path failure alarm; the vibration alarm module is connected to the data acquisition module through the electrical interface to realize the protection of the working fiber core and the vibration failure alarm of the fiber core; The optical power monitoring module is connected to the seventh optical switch through the optical interface, and the seventh optical switch realizes the optical power monitoring of the working fiber core by connecting the optical splitter; The non-working fiber core monitoring module is connected to the OTDR through the electrical interface to realize the monitoring of the non-working fiber core; The optical fiber vibration monitoring module is connected to the fifth optical switch through an optical interface to realize vibration monitoring of the working core and the protection core of the core group; The optical detection module is connected to the OTDR through the electrical interface, and through the control of the OTDR, the fault detection of the working fiber core is realized; The optical path switching module at the sending end is connected to the first optical switch through the electrical interface, and the optical path switching module at the receiving end is connected to the second optical switch, the third optical switch, the fourth optical switch, the sixth optical switch, and the seventh optical switch through the electrical interface, realizing Monitoring mode switch selection; The receiving-end optical path switching module is connected to the fifth optical switch through an electrical interface to realize the selection of the working fiber core protection fiber core vibration monitoring mode; The optical path switching module at the sending end is connected to the first optical switch through the electrical interface, and the optical path switching module at the receiving end is connected to the second optical switch and the fifth optical switch through the electrical interface, so as to realize the self-healing and automatic switching of the faulty working fiber core line to the protection line. 2. The dual-mode optical fiber monitoring system with protection optical path and fault self-healing according to claim 1, characterized in that; The control processor controls the optical path switching module at the sending end through the information interaction bus, which can be realized by directly controlling the optical path switching module at the sending end through the information interaction bus by the application server.