CN111010226A

CN111010226A - Optical fiber testing system based on cloud computing

Info

Publication number: CN111010226A
Application number: CN201911160251.5A
Authority: CN
Inventors: 洪波
Original assignee: Zhejiang Grandway Telecom Tech Co ltd
Current assignee: Zhejiang Grandway Telecom Tech Co ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-04-14

Abstract

The invention relates to an optical fiber testing system based on cloud computing, which comprises: the test subsystem is used for collecting optical fiber test data; the resource subsystem is connected with the test subsystem and used for carrying out parameter calculation on the optical fiber test data; the testing subsystem comprises a plurality of optical fiber testing devices, each optical fiber testing device is connected with the resource subsystem through a network, and the resource subsystem runs on the cloud computing platform. Compared with the prior art, the method has the advantages of fast deployment period, high reliability, flexibility, dynamic property, virtualization and expandability, low price, flexibility and good stability.

Description

Optical fiber testing system based on cloud computing

Technical Field

The invention relates to the field of optical fiber test systems, in particular to an optical fiber test system based on cloud computing.

Background

Conventional OTDR (optical time domain reflectometer) is used manually, decentralized, and not in real time. The device has the characteristics of low working efficiency and excessive dependence on the experience of a user, and needs a large amount of maintenance personnel. With the long-distance transmission of optical cables and the rapid expansion of the scale of local networks, the maintenance force is more insufficient. With the maturity of optical fiber networks and the advancement of technology, in order to guarantee the availability of communication, the demand of operators is higher and higher, and remote automatic maintenance means are required, especially in some important optical fiber lines. The need for a fiber optic test system with 1) real-time: when the optical fiber network is abnormal, the optical fiber network can be quickly found and positioned and can give an alarm in time; 2) maintainability; the use of OAM systems facilitates system operation and administrative maintenance. 3) Predictability: and detecting and tracking the quality condition of the optical cable network in real time, and judging the development trend of the optical cable network through data analysis.

In this context, remote automatic OTDR test systems have been developed. However, the OTDR device of the current remote automatic OTDR testing system is arranged in a machine room and is divided into an acquisition module, an optical switch module, a communication module, and the like, which has high deployment cost, cannot form a flexible optical fiber detection network, and has a limited coverage area. And because the system operates independently, network equipment, a storage system, a dedicated server, an OS and the like need to be built and deployed by self, the period from planning, project establishment, purchase, construction to delivery is long, the construction cost is high, the maintenance burden after the construction is heavy, and the system is not easy to upgrade.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the optical fiber testing system based on the cloud computing, which has the advantages of flexible detection, wide coverage range, low cost and convenient maintenance.

The purpose of the invention can be realized by the following technical scheme:

a cloud computing-based fiber optic testing system, comprising:

the test subsystem is used for collecting optical fiber test data;

the resource subsystem is connected with the test subsystem and used for performing parameter calculation and data storage on the optical fiber test data;

an operation administration maintenance subsystem (OAM domain) connected with the test subsystem for managing and maintaining the resource subsystem;

the testing subsystem comprises a plurality of optical fiber testing devices, each optical fiber testing device is connected with the resource subsystem through a network, and the resource subsystem runs on the cloud computing platform.

Further, optic fibre test equipment casing, for the power of whole equipment power supply, connect the display input module on the casing, and set up the circuit board inside the casing, the circuit board includes the treater circuit to and connect treater circuit's optic fibre test circuit, internet access module and photoswitch respectively, optic fibre test circuit passes through optic switch connects optic fibre, internet access module includes thing networking circuit and wiFi circuit, display input module, wiFi circuit and thing networking circuit all connect the treater circuit.

The optical fiber testing equipment can be configured into an AP mode through the WiFi circuit and used as a hotspot for other optical fiber testing equipment (used as STA (station)) to access to form a distributed testing system, so that the number and the topological structure of the optical fiber testing equipment accessed to the network can be changed along with the change of the scale of the optical cable network of a user, the system does not need to be changed, and the coverage range is wide.

Further, the internet of things circuit is a GPRS circuit, an LTE circuit or an NB-IoT circuit, and the GPRS circuit, the LTE circuit and the NB-IoT circuit are all connected with the processor circuit. The optical fiber testing equipment is connected with the cloud server through an IoT (Internet of things) circuit, so that the optical fiber testing equipment can be deployed in a machine room of an operator, can be deployed on monitoring acquisition nodes in any region, even in the field, and has the characteristics of flexibility. The number and the topological structure of the optical fiber testing equipment access network can also change along with the change of the scale of the optical cable network of the user, the system does not need to be changed, and the coverage range is wide.

Further, the network connection module includes an ethernet circuit, which is connected to the processor circuit. When the optical fiber testing equipment is deployed in a machine room of an operator, the optical fiber testing equipment can be accessed to the cloud server through the Ethernet circuit, and the stability of network connection is improved.

The optical fiber testing equipment provided with the Internet of things circuit, the WiFi circuit and the Ethernet circuit can be placed in a machine room of an operator, and the Ethernet circuit is accessed into the resource subsystem; the system can be arranged outside a machine room and can be accessed to a resource subsystem through a circuit of the Internet of things; if the optical fiber testing devices are relatively centralized, a small number of WiFi circuits of the optical fiber testing devices can be configured into an AP mode and used as hot spots for other optical fiber testing devices (STA) to access, and finally each optical fiber testing device is accessed to the resource subsystem through the circuit of the Internet of things.

Furthermore, the optical fiber test circuit comprises an optical fiber data acquisition unit and an optical fiber parameter calculation unit, wherein the optical fiber data acquisition unit and the optical fiber parameter calculation unit are both connected with the processor circuit;

when the optical fiber testing equipment is not connected with the resource subsystem, the optical fiber testing equipment operates the optical fiber data acquisition unit and the optical fiber parameter calculation unit, processes the acquired data by the optical fiber testing equipment, calculates optical fiber testing parameters and displays the optical fiber testing parameters on the liquid crystal display screen; when the optical fiber testing equipment is connected with the resource subsystem, the optical fiber testing equipment runs the optical fiber data acquisition unit and is only responsible for acquiring the testing data and performing primary processing, and the parameter calculation work is completed by the resource subsystem.

Furthermore, the circuit board further comprises a GPS positioning circuit and an electric quantity monitoring circuit, the GPS positioning circuit is connected with the processor circuit, and the GPS positioning circuit can rapidly find and position the optical fiber testing equipment when the optical fiber network is in an abnormal condition.

Furthermore, the optical fiber test equipment adopts MQTT and SNMP/CORBA protocol as communication protocol, which is convenient for butt joint and expansion with a resource subsystem or other network management systems running on a cloud computing platform, for example, combining with SDH network management alarm interface and the like to form a larger network management system; a JASON interpreter is adopted for a protocol instruction between the optical fiber testing equipment and the resource subsystem, so that protocol compatibility and system expansion are easy.

Further, the resource subsystem is deployed on a PaaS (platform as a service) of the cloud computing platform, and the data storage is specifically that the resource subsystem stores the optical fiber test data and the parameter calculation result thereof on a cloud disk.

Further, the operation, management and maintenance subsystem comprises a PC control terminal and/or a mobile phone control terminal.

Furthermore, the operation management maintenance subsystem comprises a resource configuration module, a detection module, an alarm module, a tool module and a display module;

the tool module comprises a window setting submodule, a test template setting submodule and an authority management submodule;

the display module comprises a display interface, wherein the display interface comprises a resource window, an electronic map window, a test curve window and an alarm window; in the resource window, displaying a geographical area, a site, a test node, test equipment and a cable in a tree diagram form;

the resource configuration module is used for configuring the test parameters of the optical fiber test equipment;

the detection module is used for carrying out comparative analysis on the test curves and data of the optical fiber at different periods;

and the alarm module is used for performing abnormal connection alarm and optical fiber test result alarm of the optical fiber test equipment.

Compared with the prior art, the invention has the following advantages:

(1) the optical fiber testing system based on cloud computing runs the resource subsystem on the cloud computing platform, so that the system is not only quick in deployment period, but also has the characteristics of high reliability, flexibility, dynamic property, virtualization, expandability and low price.

(2) The optical fiber testing equipment can be deployed in a machine room of an operator, can be deployed on monitoring acquisition nodes in any region, even in the field, and has the characteristics of flexibility; the number and the topological structure of the optical fiber testing equipment access network can also change along with the change of the scale of the optical cable network of the user without changing the system; compared with the traditional rack-type optical cable monitoring system, the multi-mode access mode is very convenient and flexible, greatly reduces the deployment difficulty and cost of OTDR test equipment, and enlarges the test range.

(3) When the optical fiber testing equipment is not connected with the resource subsystem, the optical fiber testing equipment operates the optical fiber data acquisition unit and the optical fiber parameter calculation unit, processes the acquired data by the optical fiber testing equipment, calculates optical fiber testing parameters and displays the optical fiber testing parameters on the liquid crystal display screen; when the optical fiber testing equipment is connected with the resource subsystem, the optical fiber testing equipment operates the optical fiber data acquisition unit and is only responsible for acquiring the testing data and performing primary processing, and the parameter calculation work is completed by the resource subsystem, so that the optical fiber testing equipment cannot be used by a network, and the stability of the optical fiber testing equipment is improved.

(4) When the optical fiber testing equipment is deployed in a machine room of an operator, the optical fiber testing equipment can also be accessed to a cloud server through an Ethernet circuit, so that the stability of network connection is improved.

(5) The optical fiber testing equipment is provided with the GPS positioning circuit, so that the optical fiber testing equipment can quickly find and position when an optical fiber network is in an abnormal condition.

(6) The optical fiber test equipment realizes standard MQTT, SNMP/CORBA protocol inside, is convenient to be butted and expanded with a resource subsystem or other network management systems running on a cloud computing platform, and forms a larger network management system by combining with SDH network management alarm interfaces and the like; a JASON interpreter is adopted for a protocol instruction between the optical fiber testing equipment and the resource subsystem, so that protocol compatibility and system expansion are easy.

(7) The optical fiber testing system based on cloud computing integrates the functions of testing, collecting, analyzing, positioning, alarming, managing and predicting through the testing subsystem, the resource subsystem and the operation management and maintenance subsystem, adopts an automatic distributed collecting and operation and maintenance system, and can greatly improve the operation and maintenance efficiency and quality of operators; the system maintenance personnel can conveniently carry out various tests on the optical fiber network and check the test result at any place through moving the control terminal by the mobile phone, and the system is managed and maintained. The system has strong analysis capability, and the performance of the optical fiber can be rapidly obtained through analysis; the optical fiber test data and the parameter calculation result thereof stored on the cloud disk by the resource subsystem are convenient for carrying out statistics and analysis on big data of optical fiber faults and predicting the change trend of the optical fiber quality.

Drawings

FIG. 1 is a schematic structural diagram of a cloud computing-based optical fiber testing system according to the present invention;

FIG. 2 is a perspective view of the fiber optic test apparatus of the present invention;

FIG. 3 is a left side view of the fiber optic test apparatus of the present invention;

FIG. 4 is a bottom view of the fiber optic testing apparatus of the present invention;

FIG. 5 is an internal schematic view of the fiber optic test apparatus of the present invention;

FIG. 6 is a schematic structural diagram of a circuit board of the optical fiber testing apparatus of the present invention;

FIG. 7 is a schematic diagram illustrating a state where the fiber testing device of the present invention accesses the resource subsystem through Ethernet;

FIG. 8 is a schematic diagram of a state in which the optical fiber testing device accesses the resource subsystem through the Internet of things according to the present invention;

in the figure, 1, a housing, 21, a power interface, 22, a rechargeable battery, 3, a display input module, 31, a liquid crystal display screen, 32, a keyboard, 4, a circuit board, 41, a processor circuit, 42, an optical fiber testing circuit, 43, a network connection module, 431, a WiFi circuit, 432, an ethernet circuit, 4321, a gigabit ethernet interface, 433, an internet of things circuit, 4331, an NB-IoT circuit, 44, an optical switch, 45, a GPS positioning circuit, 46, a power monitoring circuit, 47 and a peripheral circuit.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Example 1

As shown in fig. 1, the present embodiment is an optical fiber testing system based on cloud computing, including:

a test subsystem (test domain) for collecting fiber test data;

the resource subsystem (resource domain) is connected with the test subsystem and used for carrying out parameter calculation on the optical fiber test data;

an operation administration maintenance subsystem (OAM domain) connected with the resource subsystem for managing and maintaining the resource subsystem;

The following describes the optical fiber testing system of this embodiment in detail:

1. optical fiber testing equipment

As shown in fig. 1 to 5, the optical fiber testing device of this embodiment is configured to collect optical fiber testing data and transmit the optical fiber testing data to a resource subsystem, and includes a housing 1, a power supply for supplying power to the entire device, a display input module 3 connected to the housing 1, and a circuit board 4 disposed inside the housing 1, where the circuit board 4 includes a processor circuit 41, and an optical fiber testing circuit 42(OTDR testing circuit), a network connection module 43, an optical switch 44, and a peripheral circuit 47 respectively connected to the processor circuit 41, where the optical fiber testing circuit 42 is connected to an optical fiber to be tested through the optical switch 44, and the display input module 3 is connected to the processor circuit 41.

The processor circuit 41 comprises an ARM-A8 core CPU, and adopts a TIARM Cortex-A8 high-performance processor AM3352 with a main frequency of 1GHz and an operational capability of 1600 DMIPS. The processor circuit 41 processes all the communication, optical fiber test and optical path control, and data calculation processing, receives control and configuration information of the cloud via a wireless or wired network, and controls the optical switch 44 to switch the optical fiber to be tested and the route.

The optical fiber testing circuit 42 tests a tested optical fiber, and includes an optical fiber data acquisition unit 421, an optical fiber parameter calculation unit 422, and four optical fiber interfaces 423, where the optical fiber data acquisition unit 421 and the optical fiber parameter calculation unit 422 are both connected to the processor circuit 41. The optical fiber test circuit 42 comprises an FPGA chip, the FPGA chip adopts EP4CE6F17I7N of ALTERA, the optical fiber data acquisition unit 421 and the optical fiber parameter calculation unit 422 are integrated on the FPGA chip, and the optical switch 44 is connected between the optical fiber interface 423 and the FPGA chip.

The network connection module 43 includes a WiFi circuit 431, an ethernet circuit 432, and an internet of things circuit 433, and the WiFi circuit 431, the ethernet circuit 432, and the internet of things circuit 433 are all connected to the processor circuit 41.

WiFi circuit 431 adopts the xPico Wi-Fi module of the company of Lantronix in the USA, when using, both can constitute AP (wireless access point) also can be STA (website), and this embodiment is equipped with the WiFi antenna at casing 1 upper end.

The ethernet circuit 432 includes two gigabit ethernet interfaces 4321, the gigabit ethernet interface 4321 is connected to a chip 88E1111, and the chip 88E1111 is connected to the processor circuit 41.

The internet of things circuitry 433 may include GPRS circuitry, LTE circuitry, or NB-IoT circuitry 4331, all connected to the processor circuitry 41. The GSM/GPRS circuit adopts an industrial communication module M6315; the LTE circuit adopts a full network communication module SLM 750; the NB-IoT circuit adopts a full-network communication module ME 33616; the GPRS/LTE/NB-IoT circuit forms an IoT communication interface. In this embodiment, an NB-IoT circuit 4331 is used, and an NB-IoT antenna is disposed at the upper end of the housing 1.

The optical switch 44 is a 1xN (1x16 or 1x32) MOEMS optical switch, which has the advantages of miniaturization, high switching speed, small insertion loss, etc., and the specific model of the optical switch 44 in this embodiment is HC-FSW-1 x 32.

The display input module 3 includes a liquid crystal display 31 and a keyboard 32.

The power supply comprises a power interface 21 and a rechargeable battery 22, and can be charged from the outside through the power interface 21 and can be supplied with power by the internal rechargeable battery 22.

The circuit board 4 also includes a GPS positioning circuit 45, the GPS positioning circuit 45 being connected to the processor circuit 41. The GPS circuit adopts a big Dipper and GPS dual-mode module L80 and is used for acquiring longitude and latitude positioning information of the optical fiber testing equipment.

The circuit board 4 further includes a power monitoring circuit 46, and the power monitoring circuit 46 monitors the remaining battery power at any time and transmits the battery power to the resource subsystem using a heartbeat packet.

In this embodiment, a distributed optical fiber test system may be formed among a plurality of optical fiber test devices, and the distributed optical fiber test system may be based on a LAN (wired local area network) or a WLAN (wireless local area network). And in the LAN-based mode, the network port is configured as an IP address of a local area network segment and is accessed to the cloud terminal through the switch and the router. In a WLAN-based mode, a small number of WiFi circuits of the optical fiber testing equipment are configured into an AP mode and used as hot spots for other optical fiber testing equipment (STA) to access, and finally, each optical fiber testing equipment is accessed to the resource subsystem through an IoT network.

The communication protocol in the optical fiber test equipment adopts standard MQTT and SNMP/CORBA protocol, and is convenient to be butted and expanded with a resource subsystem or other network management systems. A JASON interpreter is adopted for a protocol instruction between the optical fiber testing equipment and the resource subsystem, so that protocol compatibility and system expansion are easy.

After the optical fiber testing equipment is accessed to the cloud network, a clock synchronization mechanism after the optical fiber testing equipment is accessed to the network is provided, and the synchronization of the local clock and the network clock at any time is ensured.

The working principle of the optical fiber testing equipment is as follows:

the optical fiber test equipment has two working modes, one mode is used as independent optical fiber test equipment when the resource subsystem is not connected, the optical fiber test equipment operates an optical fiber data acquisition unit 421 and an optical fiber parameter calculation unit 422, processes acquired data by the optical fiber data acquisition unit and calculates optical fiber test parameters and displays the optical fiber test parameters on a liquid crystal screen; the other mode is that the fiber test equipment is connected with the resource subsystem, and only the fiber data acquisition unit 421 is operated at this time, and is only responsible for acquiring test data and performing preliminary processing, and the parameter calculation work is completed by the resource subsystem.

The optical fiber testing equipment can be placed in a machine room of an operator and is accessed into the resource subsystem through the Ethernet circuit 432; the system can be arranged outside a machine room and can be accessed to a resource subsystem through an Internet of things circuit 433; if the optical fiber testing devices are relatively centralized, a small number of WiFi circuits of the optical fiber testing devices can be configured into an AP mode and used as hot spots for other optical fiber testing devices (STA) to access, and finally each optical fiber testing device is accessed to the resource subsystem through the Internet of things circuit 433.

Therefore, the optical fiber testing equipment can be deployed in a machine room of an operator, can be deployed on monitoring acquisition nodes in any region, even in the field, and has the characteristics of flexibility; the number and the topological structure of the optical fiber testing equipment access network can also change along with the change of the scale of the optical cable network of the user without changing the system; compared with the traditional rack-type optical cable monitoring system, the multi-mode access mode is very convenient and flexible, greatly reduces the deployment difficulty and cost of OTDR test equipment, and enlarges the test range.

After the optical fiber testing device is connected with the resource subsystem through the internet of things circuit 433 or the ethernet:

the user client program manages the optical fiber testing equipment through the resource subsystem database, and comprises equipment registration, network node configuration, testing parameter setting, function mode configuration and the like. And the setting data and the control instruction are issued from the cloud to the optical fiber testing equipment. The optical fiber testing equipment operates the optical switch 44 regularly according to the configuration data to start the detection operation of the optical fiber network or receives the alarm test instruction in real time and then carries out real-time detection, the optical switch 44 is disconnected after the detection is finished and test data such as an SOR file and the like are automatically uploaded to the resource subsystem, the SOR file is stored by the resource subsystem and is compared and analyzed with preset parameters (reference curves), then alarm analysis and processing are carried out according to the alarm configuration data, and finally message distribution is carried out.

2. Resource subsystem

The system deploys resource subsystems using a platform as a service (PaaS) of the Alice cloud.

The resource subsystem includes a NoSQL type database, a background application program and an electronic map.

The resource subsystem completes the storage of SOR files, data management, data analysis, OTDR equipment (optical fiber testing equipment) management, test control, alarm processing and management and message distribution.

The database adopts HBase X-Pack. HBase X-Pack is a distributed, object-oriented open source database. The system stores test data files, IoTDR information and test resource information by using the system, and stores electronic map data.

The storage system uses the OSS of the airy cloud. The Aliyun OSS is a distributed object-oriented storage system, and based on a flying large-scale distributed computing system, the OSS has the capabilities of automatic data redundancy and automatic fault recovery.

The background application program development adopts an object-oriented JAVA language, supports multithreading high-load concurrent processing, and can meet the requirements of data throughput and input and output operation of a large amount of IoTDRs. The application provides a database and OSS data access interface.

The system provides a standardized network interface on the resource subsystem: MQTT, XML, SNMP/CORBA, which is convenient for the butt joint and the expansion with other network management systems.

The resource subsystem adopts an Aliskiun general type g5 platform. The g5 platform is configured as follows:

and 16 cores in the CPU. Memory: 64 GB. The maximum intranet bandwidth is 20 Gbps. The maximum network transceiving packet capability is 400 ten thousand PPS.

Providing resilient IP services.

The storage adopts cloud disk storage: the OSS object stores 10T resource packages.

A database: HBase X-Pack.

An electronic map: MAPINFO electronic map.

Software: and (5) background control program.

3. Operation management maintenance subsystem

The operation, administration and maintenance subsystem (OAM system) comprises a PC control terminal and a mobile phone control terminal, and a human-computer interface of the OAM system is realized through the PC control terminal (PC client) and the mobile phone control terminal (mobile phone client).

The OAM system adopts interactive graphical operation to graphically represent a topological graph formed by IoTDR nodes, stations, optical cables and the like on an electronic map. It supports multiple window management and directory tree management. The staff can conveniently carry out the management and the inquiry of the IoTDR node on the PC terminal or the mobile terminal: IoTDR, node deployment, test parameter setting, function configuration, test control, data query, alarm query and the like.

The control terminals can be multiple or multiple, and when the control terminals write the same object, the database of the resource subsystem performs mutual exclusion protection operation on the data.

And all the control terminals uniformly acquire the electronic map data from the server.

In order to ensure the performance of the OAM system, the PC client is configured as follows:

hardware configuration: core i7 CPU, 8G DDR4 memory, 256GSSD +1TB hard disk, 2-way gigabit network card, 29' color display;

operating the system: win10 Professional;

software: and the OAM application program of the PC end of the remote automatic OTDR test system.

The PC client is arranged in a system management center and a hierarchical management branch center, and a plurality of PC clients can coexist.

The mobile phone client side: operating the system: andriod 6.0; software: and the OAM application program at the mobile phone end of the remote automatic OTDR test system. The mobile phone client is carried by maintenance management personnel.

4. Network architecture

A Client/Server (Client/Server) structure is adopted between the operation management maintenance subsystem and the resource subsystem and between the optical fiber testing equipment and the resource subsystem. The operation management maintenance subsystem manages and accesses the optical fiber testing equipment through the access resource subsystem. And a TCP/IP protocol is adopted among the operation management maintenance subsystem, the resource subsystem and the optical fiber testing equipment.

5. Working process

The user is connected to the resource subsystem through the PC client and the mobile phone client.

The IoTDR equipment is connected with the resource subsystem through an IoT network or an Ethernet.

The user client program manages the IoTDR device through the resource subsystem database: device registration, network node configuration, test parameter setting, functional mode configuration, and the like. And the setting data and the control instruction are issued from the cloud to the IoTDR equipment. The IoTDR equipment operates the optical switch to start detection operation on the optical fiber network at regular time according to configuration data or receives an alarm test instruction in real time, then carries out real-time detection, disconnects the optical switch after detection is finished, automatically uploads test data such as an SOR file and the like to the cloud server, the resource subsystem stores the SOR file, carries out comparative analysis on the SOR file and preset parameters (reference curves), then carries out alarm analysis and processing according to alarm configuration data, and finally carries out message distribution.

6. OAM system software implementation

The OAM client software is in a WINDOWS window style. The function menus include the following menus: file, configuration, detection, alarm, report and tool. The tool menu includes: window setting, test template setting and authority management. The status bar displays longitude and latitude coordinate values. The main body interface is divided into a resource window (displaying test nodes/cables/test equipment), an electronic map window, a test curve window and an alarm window.

6.1 File Menu

The file menu has submenus of opening, deleting, copying, pasting, closing and the like, and can open the historical data files stored in the system for analysis by a user.

6.2, configuration Menu

The configuration menu comprises resource management and configuration, and geographical areas, sites, test nodes, test equipment and cables are displayed and displayed in a tree diagram form in a resource window. And displaying each level of sub-objects in a folding and unfolding mode, and realizing the addition and deletion of all objects through a right-click menu.

The managed data includes the type and length of optical cable, equipment connection port, optical path route, optical cable node, sub-box, etc. Remote monitoring stations, group information, landmark information, etc. may also be managed.

The objects in the configuration navigation window may flash in different colors depending on the alert level when an alert occurs.

The user can conduct test management and IoTDR management in the window. Management functions for the IoTDR include:

IoTDR Enable: IoTDR is enabled/disabled according to the configuration situation of the field.

IoTDR and test resource mapping: and establishing a mapping relation between the IoTDR and the tested resource.

IoTDR parameter configuration: the test mode is configured, and the periodic test can set the test interval according to minutes, hours, days, weeks and months. And configuring test parameters such as test wavelength, test length range, pulse width, test data point, refractive index, scattering coefficient, test averaging time and the like. Initializing a quality reference curve, setting a test threshold, setting system working parameters, and selecting one of a plurality of reference tests as a reference; the clocks are synchronized.

IoTDR acquisition: and acquiring instant IoTDR operation information.

IoTDR connection test: and testing whether the connection between the system and the IoTDR is normal.

Inquiring test parameters and results: and extracting a test result to come to a test analysis window for analysis.

6.3, detection Menu

The detection menu packet is tested and subjected to data analysis, the curve display analysis window of the test result displays an OTDR data curve and an event point of the test optical fiber, a plurality of curves can be displayed simultaneously, and the test curves and data of the optical fiber in different periods can be conveniently compared and analyzed. Automatic analysis data of the event table is also given for each test curve.

Single test: when a certain site is selected in the resource window, the right mouse button menu can jump out of the 'test' menu item, and the menu item is clicked to carry out single test. And after the test is finished, the system automatically jumps out of the analysis window. Analysis of the test data was performed. The analysis functions include plotting the IoTDR data for the test link, and marking event points and distances. A plurality of curves can be displayed in an overlapping mode, comparison is carried out with a preset reference curve, and zooming and translation of the image can be carried out.

An AB line can be added, and when the AB line is moved, the analysis window can calculate and display the length between the AB lines, the total loss between two points, the average attenuation per kilometer between the two points, the insertion loss of the B point, the reflection loss of the B point and the accumulated loss of the B point.

6.4 alarm Menu

The alarm window displays the current alarm received by the system, the alarm comprises an OTDR equipment connection abnormal alarm and various optical cable test alarms, and different colors are defined to represent different alarm levels. The whole current alarm processing flow and test can be completed through the right-click menu. When the alarm occurs, a corresponding sound reminding function is also provided.

The alarm function comprises an optical fiber test alarm and an IoTDR self network equipment alarm.

The optical fiber test alarm can be an alarm sent by a real-time alarm test or an alarm generated by a periodic test.

The initiation of the real-time alarm test is initiated by an alarm message from the external network alarm interface. The alarm interface is connected with a network management system of the transmission equipment.

The optical fiber test alarm function comprises: alarm display, alarm clearing, alarm filtering, alarm inquiry, alarm statistics and the like.

The optical network device alarm comprises: and alarming for network connection and alarming for insufficient electric quantity.

And clicking the alarm item of the alarm window to display detailed alarm information, including an alarm area, an alarm node, an IoTDR number, a cable segment, an alarm type, alarm content, an alarm level, discovery/fault receiving time, test positioning time, occurrence time, ending time, acceptance time, a reporting unit, a maintenance responsible person and a repair process.

6.5 report Menu

All the test, alarm and maintenance records have corresponding report forms, and the report forms are automatically stored by taking the date and the time as the file names and are displayed in a report form menu.

6.6 electronic map window

Areas, sites, nodes/IoTDR test equipment, test links (routes), optical cable trunk lines, optical cable segments, cable segments (including landmark segments), landmarks (including welding points), and topological relationships between these objects are all displayed in a graphical form on an electronic map. The connection relation graph between the optical cable connection devices such as optical cable nodes and branch boxes and the optical cable, the optical cable routing graph and the like can be displayed. And the cable fault point and the distance between the cable fault point and the central node can be arranged on an electronic map.

The system includes two basic types of graphical objects: point objects and line objects. Point objects correspond primarily to objects of the landmark type; the line objects mainly correspond to objects of the landmark type. The site, the OTDR and the welding point belong to specific types of landmarks, and the landmarks are displayed on a map by various marks representing one point characteristic according to different attributes; the test links (routes), trunk lines, optical cable segments, and cable segments are represented by landmark segments, which are displayed on the map in straight lines of different thicknesses according to the type. And displaying the optical cable segment, the landmark segment and the landmark on the map. The right-click menu contains a query for the object properties.

7. OAM system software functions

OAM system software functions include test functions, analysis functions, alarm functions, device and resource management, topology management, and system management.

The following is a detailed description:

test function

1) The system controls the IoTDR to perform fiber testing. And the method supports periodic test, batch test, individual test and alarm test. Each fiber optic network may be individually configured with a test period.

The periodic test is that a user sets an independent test plan for each test fiber core according to maintenance requirements, and tests are carried out periodically, wherein the periodic unit can be from minutes to days, months and years. After the periodic test is finished, the actually measured curve and the reference curve in the RTU are automatically compared, and when the actually measured curve exceeds a set threshold, alarm information is generated. The periodic test can track the transmission quality of the line for a long time and can find the problems of degradation and the like in time.

The independent test is carried out according to temporary requirements, and a user manually sets parameters such as a measuring range, a pulse width, a backscattering coefficient, an optimization mode and the like to realize the monitoring and analysis of the target optical cable and optical fiber line.

And a batch of nodes can be tested independently to form batch testing.

Alarm testing is testing triggered by incoming messages through an external alarm interface.

2) Each IoTDR can independently set test parameters such as a test mode, a test wavelength, a test length range, a pulse width, a test data point, a refractive index, a scattering coefficient, test averaging time and the like. Initializing a quality reference curve, setting a test threshold, setting system working parameters and the like.

3) And the test result is collected to a cloud server database in the form of an SOR file and is compared and analyzed with a preset reference curve.

4) By controlling the switching on and off of the remote optical switch of the relay station, the cascade test can be performed.

(II) analysis function

1) Fiber data analysis and display: length, total loss, average attenuation per kilometer, event point.

2) Event point analysis and display: event point number, location, event type, insertion loss, reflection loss, cumulative loss, average attenuation per kilometer.

3) And setting AB lines and displaying various parameters between the AB lines.

4) The curves are superimposed to show the comparison function.

5) And analyzing the data record of the long-term detection of the optical fiber to obtain the change trend of the optical fiber performance. Carrying out transverse comparison analysis on the optical fiber monitoring test data in a period of time to form an optical fiber performance index curve graph serving as a health archive of the line; the user can check the historical change situation at any time.

6) Support test database content export.

(III) alarm function:

1) the alert information may be extracted from the alert interface.

2) And analyzing and comparing the test data with the alarm threshold parameter to generate alarm information.

3) Alarm thresholds can be set individually for each fiber and station.

4) And the OAM software of the control terminal can display the alarm points and the alarm optical cables in different colors on the electronic map according to the alarm level.

5) And (3) alarm information management: alarm inquiry, alarm shielding/filtering, alarm statistics, alarm file export and log function.

6) Alarm processing management: and informing corresponding field maintenance personnel through the mobile phone client, and tracking the fault processing flow.

7) And collecting statistic alarm data and providing various fault statistics and analysis reports.

8) And monitoring and alarming of the network connection condition of the system per se are supported.

(IV) device and resource management

1) Management of the IoTDR: enabling/disabling, parameter configuration, synchronous OTDR clock, OTDR connection test.

2) The matching relation between the IoTDR and the link to be tested, a user can establish the corresponding relation between the port to be tested and the optical fiber route through the system, and the corresponding relation between the optical cable route and the optical switch port, the area configuration, the site configuration, the link test and the route test are set.

3) And the management of basic information of line resources to be monitored and tested is supported, wherein the basic information comprises optical cable types, lengths, equipment connecting ports, optical path routing, pipeline routing, GIS positioning information and the like. Remote monitoring stations, group information, landmark information, etc. may be managed. Trunk line, optical cable section, landmark section, station, fiber core and transmission system.

4) And displaying the topological relations of sites, IoTDRs, test links, optical cable trunk lines, optical cable sections, landmark sections, landmarks and the like.

(V) topology management

The network topology refers to a network formed by communication optical cables, and comprises a connection relation graph between optical cable connection devices such as optical cable nodes, an optical cross-connecting box, a branch box and a branch fiber box and the optical cables, and graphical display and GIS positioning display of optical cable routing graphs and the like. The topological graph vividly and intuitively shows the optical cable networking condition, and can clearly mark the optical cable fault point and the distance between the optical cable fault point and the central node on the basis.

(VI) System management

The system management comprises user and authority management, file backup management and log management.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. A cloud computing-based optical fiber testing system, comprising:

the test subsystem is used for collecting optical fiber test data;

the operation management maintenance subsystem is connected with the test subsystem and is used for managing and maintaining the resource subsystem;

2. The optical fiber testing system based on cloud computing according to claim 1, wherein the optical fiber testing device comprises a housing (1), a power supply for supplying power to the whole device, a display input module (3) connected to the housing (1), and a circuit board (4) arranged inside the housing (1), the circuit board (4) comprises a processor circuit (41), and an optical fiber testing circuit (42), a network connection module (43) and an optical switch (44) which are respectively connected with the processor circuit (41), the optical fiber testing circuit (42) is connected with an optical fiber through the optical switch (44), the network connection module (43) comprises a WiFi circuit (431) and an Internet of things circuit (433), and the display input module (3), the WiFi circuit (431) and the Internet of things circuit (433) are all connected with the processor circuit (41).

3. A cloud computing-based fiber optic test system according to claim 2, wherein the internet of things circuit (433) is a GPRS circuit, an LTE circuit, or an NB-IoT circuit (4331), the GPRS circuit, LTE circuit, and NB-IoT circuit (4331) each being connected to the processor circuit (41).

4. A cloud computing-based fiber optic test system according to claim 2, wherein the network connection module (43) further comprises an ethernet circuit (432), the ethernet circuit (432) being connected to the processor circuit (41).

5. A cloud computing-based optical fiber test system according to claim 2, wherein the optical fiber test circuit (42) comprises an optical fiber data acquisition unit and an optical fiber parameter calculation unit, both of which are connected to the processor circuit (41);

when the optical fiber testing equipment is not connected with the resource subsystem, the optical fiber testing equipment operates the optical fiber data acquisition unit and the optical fiber parameter calculation unit; when the optical fiber testing equipment is connected with the resource subsystem, the optical fiber testing equipment operates the optical fiber data acquisition unit.

6. A cloud computing based fiber optic test system according to claim 2, wherein the circuit board (4) further comprises a GPS positioning circuit (45) and a power monitoring circuit (46), the GPS positioning circuit (45) being connected to the processor circuit (41).

7. The cloud-computing-based optical fiber test system as claimed in claim 1, wherein the optical fiber test device adopts MQTT, SNMP/CORBA protocol as a communication protocol, and a JASON interpreter is adopted for a protocol instruction between the optical fiber test device and the resource subsystem.

8. The optical fiber testing system based on cloud computing according to claim 1, wherein the resource subsystem is deployed in PaaS of a cloud computing platform, and the data storage is specifically that the resource subsystem stores optical fiber testing data and parameter computing results thereof on a cloud disk.

9. The optical fiber testing system based on cloud computing of claim 1, wherein the operation, management and maintenance subsystem comprises a PC control terminal and/or a mobile phone control terminal.

10. The cloud computing-based optical fiber testing system of claim 9, wherein the operation management maintenance subsystem comprises a resource configuration module, a detection module, an alarm module, a tool module, and a display module;