CN104090252A - Comprehensive detecting system and method for cable type fault indicator - Google Patents
Comprehensive detecting system and method for cable type fault indicator Download PDFInfo
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Abstract
The invention relates to a comprehensive detecting system and method for a cable type fault indicator. The comprehensive detecting system comprises a detection main control module, a man-machine interface module, a sending end detecting module, a receiving end detecting module and a serial port detecting module. The comprehensive detecting system can receive various external detection instructions to control the sending end detecting module and the receiving end detecting module to collect optical fiber signal waveforms of an optical fiber probe through IO interfaces, the optical fiber signal waveforms are sent out by a sending end and received by a receiving end, and the collected optical fiber signal waveforms are sent to the system to be analyzed or directly output. The serial port detecting module is electrically connected to a serial port of the cable type fault indicator and can send detected serial port communication data to the detection main control module, and the detected serial port communication data are analyzed or directly output to the man-machine interface module. The comprehensive detecting system and method can quickly locate faults of a cable type fault indicator system in researching, developing and in-site testing and improve the fault locating efficiency for power grids and detecting equipment.
Description
Technical field
The present invention relates to monitoring power distribution field, a kind of comprehensive detection system of cable-type fault detector and method are for the fault of monitoring cable type fault detector equipment, accurately record and the communication stability of location and aid in improved cable-type fault detector equipment.
Background technology
In distribution network system, particularly in large-scale distribution network system, if there is short trouble or earth fault in next stage distribution network system, the electric power system of upper level must have the ability to analyze judgement in official hour, timely and faulty line cuts off, to prevent follow-up accident.Cable-type fault detector, can clearly indicate the position of breaking down, the abort situation information that maintenance personal can provide according to cable-type fault detector finds rapidly the section breaking down, the instant power supply of disposing and recovering in time non-fault section, a large amount of investigation working times be can save, power off time and power failure range reduced.
The cable-type fault detector for distribution network system fault detect of prior art, its cable-type fault detect probe is connected with demonstration and the communicating terminal of cable-type fault detector by optical fiber, and the terminal of cable-type fault detector is connected to main website by GPRS or serial ports.
In actual applications, often there is the suggested inconsistent situation of failure message of physical fault situation and cable-type fault detector; Such as failing to report, there is fault in reality, but cable-type fault detector is not correlated with information reporting to main website by fault.
Conventionally cable-type fault detector is failed to report fault following several reason: 1. the fault detect of cable-type fault detector probe is unidentified to fault; 2. the optical fiber code of cable-type fault detector fault detect probe reporting fault is defective; 3. the fault detect of cable-type fault detector is popped one's head in the fiber-optic signal that sends through transmission, and waveform distortion is serious, causes terminal None-identified; 4. the terminal called fault of cable-type fault detector causes fault to be failed to report.
Therefore the cable-type fault detector of developing high reliability is very necessary, and due to the equipment characteristic of cable-type fault detector, the on-the-spot Grid covering of debugging is extensive, simulation difficulty; Especially the state of also debugging in a development due to cable-type fault detector equipment itself in the on-the-spot test process of cable-type fault detector, if the actual conditions of integration test electrical network complexity again, likely cause research and development test effectively to carry out fast.
In order to improve development and the testing efficiency of cable-type fault detector, and can carry out fast the localization of fault of cable-type fault detector when cable-type fault detector breaks down in practical application, the present invention has designed a kind of comprehensive detection system of cable-type fault detector and method and has assisted development and the test of cable-type fault detector, this system and method also can be with the synthetic operation of cable-type fault detector at electrical network scene simultaneously, increases the reliability that whole electric network fault detects.
Explanation of nouns: IO: be the abbreviation of English " Input Output ", the Chinese meaning is " I/O ".
Summary of the invention
The technical problem to be solved in the present invention is to avoid the development of cable-type fault detector, test and the low weak point of actual failure in service location efficiency of above-mentioned prior art, and a kind of comprehensive detection system and method for cable-type fault detector are proposed, can realize fast the localization of fault of cable-type fault detector under various scenes.
The present invention has designed a kind of comprehensive detection system of cable-type fault detector, comprises and detects main control module, human-machine interface module, transmitting terminal detection module, receiving end detection module and serial ports detection module; Described transmitting terminal detection module, receiving end detection module, serial ports detection module, human-machine interface module are all electrically connected with detection main control module; Described human-machine interface module is accepted the detection instruction of outside input, and detection instruction is sent to detection main control module, then is sent to transmitting terminal detection module, receiving end detection module and serial ports detection module by detecting main control module; Described transmitting terminal detection module detects instruction according to the transmitting terminal receiving and carries out transmitting terminal input; The fiber-optic signal waveform that described transmitting terminal detection module sends at transmitting terminal by the cable-type fibre-optical probe of IO interface collection cable-type fault detector; And the fiber-optic signal waveform collecting is sent to detection main control module; Described receiving end detection module detects instruction according to the receiving end receiving and carries out receiving end signal detection; Described receiving end detection module gathers the cable-type fibre-optical probe of cable-type fault detector at the fiber-optic signal waveform receiving of receiving end by IO interface; And the fiber-optic signal waveform collecting is sent to detection main control module; Described serial ports detection module detects instruction according to the serial ports receiving and carries out serial communication detection; Described serial ports detection module is connected to by serial port power on the serial communication interface of detection streamer type fault detector; The serial communication data that detect are sent to detection main control module by described serial ports detection module; Described detection main control module is comprehensively analyzed according to the above-mentioned fiber-optic signal waveform and the serial communication data that receive, and analysis result is sent to described human-machine interface module.
Described human-machine interface module is electrically connected with transmitting terminal detection module, receiving end detection module and serial ports detection module; Described human-machine interface module is accepted the detection instruction of outside input and is directly transmitted and detect instruction to described transmitting terminal detection module, receiving end detection module and serial ports detection module; Described transmitting terminal detection module, receiving end detection module and serial ports detection module receive respectively the transmitting terminal sending from described human-machine interface module and detect instruction, receiving end detection instruction and serial ports detection instruction; Described transmitting terminal detection module detects instruction according to the transmitting terminal receiving and carries out transmitting terminal input; The fiber-optic signal waveform that described transmitting terminal detection module sends at transmitting terminal by the cable-type fibre-optical probe of IO interface collection cable-type fault detector; And the fiber-optic signal waveform collecting is sent to human-machine interface module; Described receiving end detection module detects instruction according to the receiving end receiving and carries out receiving end signal detection; Described receiving end detection module gathers the cable-type fibre-optical probe of cable-type fault detector at the fiber-optic signal waveform receiving of receiving end by IO interface; And the fiber-optic signal waveform collecting is sent to human-machine interface module; Described serial ports detection module detects instruction according to the serial ports receiving and carries out serial communication detection; Described serial ports detection module is connected to by serial port power on the serial communication interface of detection streamer type fault detector; The serial communication data that detect are sent to human-machine interface module by described serial ports detection module.
The comprehensive detection system of described cable-type fault detector, also comprises the cable-type fault detector that is used to indicate electric network fault position; Described cable-type fault detector also comprises cable-type fault detector controlling center, cable-type failure indicator terminal, the cable-type probe of surveying for electric network fault and the optical fiber for the transmission of electric network fault signal; Described optical fiber comprises optical fiber delivery header and optical fiber Receiver; Described cable-type probe is connected with described optical fiber delivery header; Described optical fiber Receiver is connected with described cable-type failure indicator terminal; Described cable-type failure indicator terminal is electrically connected with cable-type fault detector controlling center by serial ports; Or described cable-type failure indicator terminal is by GPRS interface and the wireless connections of cable-type fault detector controlling center.
In the comprehensive detection system of described cable-type fault detector, described cable-type failure indicator terminal comprises the communication module for cable-type failure indicator terminal and the communication of cable-type fault detector controlling center; Described communication module is electrically connected with cable-type fault detector controlling center by serial ports; Or described communication module is by GPRS interface and the wireless connections of cable-type fault detector controlling center.
The comprehensive detection system of described cable-type fault detector also comprises the memory module for storing historical detection information; Detection instruction and testing result historical information that described memory module storage transmitting terminal detection module, receiving end detection module and serial ports detection module receive; Described memory module is electrically connected with detection main control module; Described memory module detects the storage of instruction and testing result historical information or reads according to detecting the main control module storage sending out from human-machine interface module or the reading command that receive, and by the main control module output or directly output to human-machine interface module after testing of storage or the information that reads.
The comprehensive detection system of described cable-type fault detector, also comprises the memory module for storing historical detection information; Detection instruction and testing result historical information that described memory module storage transmitting terminal detection module, receiving end detection module and serial ports detection module receive; Described memory module is electrically connected with human-machine interface module; Described memory module detects the storage of instruction and testing result historical information or reads according to the storage or the reading command that send out from human-machine interface module, and the information of storing or read is outputed to human-machine interface module.
The comprehensive detection system of described cable-type fault detector, also comprises the memory module for storing historical detection information; Described memory module is all electrically connected with human-machine interface module and cable-type fault detector; Detection instruction and testing result historical information that described memory module storage transmitting terminal detection module, receiving end detection module and serial ports detection module receive; The fault history information that described memory module storage cable-type fault detector detects; Described memory module is carried out the storage of information or reads according to the storage or the reading command that send out from human-machine interface module, and the information of storing or read is outputed to human-machine interface module.
The present invention has also designed a kind of method for comprehensive detection of cable-type fault detector, comprises the following steps:
A. accept the detection instruction of outside input by human-machine interface module; And instruction is sent to detection main control module;
B. detect the instruction of the outside input of main control module judgement; The instruction of outside input is that transmitting terminal detection instruction enters step c; The instruction of outside input is that receiving end detection instruction enters steps d; The instruction of outside input is that serial ports detection instruction enters step e;
C. described transmitting terminal detection module carries out transmitting terminal input, and the signal detecting is sent to detection main control module;
D. described receiving end detection module carries out receiving end signal detection, and the signal detecting is sent to detection main control module;
E. described serial ports detection module carries out serial communication input, and the signal detecting is sent to detection main control module;
F. any one or more signals that described detection main control module detects according to described step c, steps d step e are comprehensively analyzed, and analysis result is sent to human-machine interface module.
The method for comprehensive detection of described cable-type fault detector, described in described step f, comprehensive analysis is further comprising the steps of:
Described in f1.1, detect main control module and receive the correct fault-signal sending from receiving end detection module, judge that cable-type probe detects correct fault-signal at the receiving end of cable-type failure indicator terminal; Described detection main control module output cable type probe and fiber work normal information;
Described in f1.2, detect the fault-signal that main control module receives the distortion sending from receiving end detection module, described detection main control module has also received the correct fault-signal sending from receiving end detection module, the working properly and information fiber work abnormal information of described detection main control module output cable type probe, or described detection main control module output cable type probe output power abnormal information;
Described in f1.3, detect the fault-signal that main control module receives the distortion sending from receiving end detection module, described detection main control module has also received the fault-signal of the distortion sending from receiving end detection module, described detection main control module output cable type probe operation irregularity information;
Described in f1.4, detect the fault-signal that main control module does not receive the correct or distortion sending from receiving end detection module, receive only the correct fault-signal sending from transmitting terminal detection module, working properly the and fiber work abnormal information of described detection main control module output cable type probe;
Described in f1.5, detect the fault-signal that main control module does not receive the correct or distortion sending from receiving end detection module, receive only the fault-signal of the distortion sending from transmitting terminal detection module, described detection main control module output cable type probe operation irregularity and fiber work abnormal information;
Described in f1.6, detect the fault-signal that main control module does not receive the correct or distortion sending from receiving end detection module, do not receive the fault-signal of the distortion sending from transmitting terminal detection module, described detection main control module output cable type probe operation irregularity information yet.
The method for comprehensive detection of described cable-type fault detector, comprehensive analysis described in described step f comprises the following steps again:
The normal serial communication signal that described in f2.1, serial ports detection module collects, is judged as serial communication between cable-type fault detector controlling center and cable-type failure indicator terminal normal; Described detection main control module output serial communication normal information;
The abnormal serial communication signal that described in f2.2, serial ports detection module collects, is judged as serial communication between cable-type fault detector controlling center and cable-type failure indicator terminal abnormal; Described detection main control module output serial ports communication abnormality information;
Described in f2.3, serial ports detection module is adopted the abnormal or normal serial communication signal that collection does not arrive, but receiving end detection module has detected correct fault-signal, is judged as cable-type failure indicator terminal abnormal; Described detection main control module output cable type failure indicator terminal information;
Described in f2.4, serial ports detection module is adopted the abnormal or normal serial communication signal that collection does not arrive, and receiving end detection module does not detect fault-signal, transmitting terminal detection module does not detect fault-signal yet, described detection main control module output cable type probe abnormal information;
Described in f2.5, serial ports detection module is adopted the abnormal or normal serial communication signal that collection does not arrive, and receiving end detection module does not detect fault-signal, transmitting terminal detection module has detected normal fault-signal, and described detection main control module output cable type is popped one's head in normally and optical fiber abnormal information;
Described in f2.6, serial ports detection module is adopted the abnormal or normal serial communication signal that collection does not arrive; and receiving end detection module does not detect fault-signal; transmitting terminal detection module has detected the fault-signal of distortion, described detection main control module output cable type probe abnormal information.
Compared with the existing technology, the present invention designs the comprehensive detection system of cable-type fault detector and the beneficial effect of method is: 1. the comprehensive detection system of the designed cable-type fault detector of the present invention is respectively that cable-type fault detect probe and optical fiber interface place and cable-type failure indicator terminal and optical fiber interface place carry out signals collecting and detection at the two ends of the Transmission Fibers of cable-type fault detector; Obtain probe transmitted signal, and signal after Optical Fiber Transmission; With this judge cable-type fault detect probe and optical fiber whether working properly; Therefore possessed the hardware condition that obtains cable-type fault detect probe and fiber failure information from source fast, improved the comprehensive detection system of the designed cable-type fault detector of cable-type fault detector localization of fault efficiency .2. the present invention also at the communication interface that has detected cable-type failure indicator terminal and cable-type fault detector controlling center; Quick orientation and communication interface fault in the time of communication interface fault; Further promote cable-type fault detector localization of fault efficiency.3. there is memory module to preserve historical failure information and the historical detection information of the comprehensive detection system of cable-type fault detector and cable-type fault detector, guarantee that dependent failure information and detection information are recorded, and avoided information dropout, provide historical data reference for locating fast fault.4. the method for comprehensive detection of the designed cable-type fault detector of the present invention detects by these three main node of two ends of the communication interface for cable-type fault detector and Transmission Fibers the signal obtaining and carries out sectionalization test location; The method of this sectionalization test location, checks fault segmentation and location, can navigate to fast the abort situation of cable-type fault detector.
The method for comprehensive detection of the designed cable-type fault detector of the present invention, can be widely used among the research and development, production, test process of cable-type fault detector, also can, with cable-type fault detector simultaneously in the on-the-spot operation of electrical network, improve the reliability of electric network fault detection and localization.
Brief description of the drawings
Fig. 1 is the functional block diagram of cable-type fault detector integrated test system preferred embodiment of the present invention;
Fig. 2 is the optical fiber waveform schematic diagram of normal optical fiber waveform and distortion.
Embodiment
Below in conjunction with each accompanying drawing, content of the present invention is described in further detail.
As shown in Figure 1, one of comprehensive detection system preferred embodiment of a kind of cable-type fault detector comprises detection main control module 110, human-machine interface module 150, transmitting terminal detection module 120, receiving end detection module 130 and serial ports detection module 140 to the present invention's preferred embodiment; Described transmitting terminal detection module 120, receiving end detection module 130, serial ports detection module 140, human-machine interface module 150 are all electrically connected with detection main control module 110; Described human-machine interface module 150 is accepted the detection instruction of outside input, and detection instruction is sent to and detects main control module 110, then be sent to transmitting terminal detection module 120, receiving end detection module 130 and serial ports detection module 140 by detecting main control module 110; Described transmitting terminal detection module 120 detects instruction according to the transmitting terminal receiving and carries out transmitting terminal input; The fiber-optic signal waveform that described transmitting terminal detection module 120 sends at transmitting terminal by the cable-type fibre-optical probe of IO interface collection cable-type fault detector; And the fiber-optic signal waveform collecting is sent to and detects main control module 110; Described receiving end detection module 130 detects instruction according to the receiving end receiving and carries out receiving end signal detection; Described receiving end detection module 130 gathers the cable-type fibre-optical probe of cable-type fault detector at the fiber-optic signal waveform receiving of receiving end by IO interface; And the fiber-optic signal waveform collecting is sent to and detects main control module 110; Described serial ports detection module 140 detects instruction according to the serial ports receiving and carries out serial communication detection; Described serial ports detection module 140 is connected to by serial port power on the serial communication interface of detection streamer type fault detector; Described serial ports detection module 140 is sent to the serial communication data that detect to detect main control module 110; Described detection main control module 110 is comprehensively analyzed according to the above-mentioned fiber-optic signal waveform and the serial communication data that receive, and analysis result is sent to described human-machine interface module 150.
Two of a kind of comprehensive detection system preferred embodiment of cable-type fault detector, on the described scheme of one of preferred embodiment basis, described human-machine interface module 150 is electrically connected with transmitting terminal detection module 120, receiving end detection module 130 and serial ports detection module 140; Described human-machine interface module 150 is accepted the detection instruction of outside input and is directly transmitted and detect instruction to described transmitting terminal detection module 120, receiving end detection module 130 and serial ports detection module 140; Described transmitting terminal detection module 120, receiving end detection module 130 and serial ports detection module 140 receive respectively the transmitting terminal sending from described human-machine interface module 150 and detect instruction, receiving end detection instruction and serial ports detection instruction; Described transmitting terminal detection module 120 detects instruction according to the transmitting terminal receiving and carries out transmitting terminal input; The fiber-optic signal waveform that described transmitting terminal detection module 120 sends at transmitting terminal by the cable-type fibre-optical probe of IO interface collection cable-type fault detector; And the fiber-optic signal waveform collecting is sent to human-machine interface module 150; Described receiving end detection module 130 detects instruction according to the receiving end receiving and carries out receiving end signal detection; Described receiving end detection module 130 gathers the cable-type fibre-optical probe of cable-type fault detector at the fiber-optic signal waveform receiving of receiving end by IO interface; And the fiber-optic signal waveform collecting is sent to human-machine interface module 150; Described serial ports detection module 140 detects instruction according to the serial ports receiving and carries out serial communication detection; Described serial ports detection module 140 is connected to by serial port power on the serial communication interface of detection streamer type fault detector; The serial communication data that detect are sent to human-machine interface module 150 by described serial ports detection module 140.
Three of a kind of comprehensive detection system preferred embodiment of cable-type fault detector, also comprehensively in cable-type fault detector comprehensive detection system 100, form a cable-type fault detector comprehensive detection system with better function by cable-type fault detector 200.
Three of described preferred embodiment namely also comprises the cable-type fault detector 200 that is used to indicate electric network fault position on one of preferred embodiment scheme basis; Described cable-type fault detector 200 also comprises cable-type fault detector controlling center 210, cable-type failure indicator terminal 220, the cable-type probe 230 of surveying for electric network fault and the optical fiber 240 for the transmission of electric network fault signal.
Described optical fiber 240 comprises optical fiber delivery header 241 and optical fiber Receiver 242; Described cable-type probe 230 is connected with described optical fiber delivery header 241; Described optical fiber Receiver 242 is connected with described cable-type failure indicator terminal 220.
Described cable-type failure indicator terminal 220 is electrically connected with cable-type fault detector controlling center 210 by serial ports; Or described cable-type failure indicator terminal 220 is by GPRS interface and 210 wireless connections of cable-type fault detector controlling center.
Described cable-type failure indicator terminal 220 comprises the communication module 222 for cable-type failure indicator terminal 220 and 210 communications of cable-type fault detector controlling center; Described communication module 222 is electrically connected with cable-type fault detector controlling center 210 by serial ports; Or described communication module 222 is by GPRS interface and 210 wireless connections of cable-type fault detector controlling center.
Four of a kind of comprehensive detection system preferred embodiment of cable-type fault detector, also comprises the memory module 160 for storing historical detection information; Described memory module 160 is stored detection instruction and the testing result historical information that transmitting terminal detection module 120, receiving end detection module 130 and serial ports detection module 140 receive; Described memory module 160 is electrically connected with detection main control module 110; Described memory module 160 detects the storage of instruction and testing result historical information or reads according to detecting the storage sending out from human-machine interface module 150 or the reading command that main control modules 110 receive, and by storage or the information that reads after testing main control module 110 export or directly output to human-machine interface module 150.
Five of a kind of comprehensive detection system preferred embodiment of cable-type fault detector, also comprises the memory module 160 for storing historical detection information; Described memory module 160 is stored detection instruction and the testing result historical information that transmitting terminal detection module 120, receiving end detection module 130 and serial ports detection module 140 receive.Described memory module 160 is electrically connected with human-machine interface module 150; Described memory module 160 detects the storage of instruction and testing result historical information or reads according to the storage or the reading command that send out from human-machine interface module 150, and the information of storing or read is outputed to human-machine interface module 150.
Six of a kind of comprehensive detection system preferred embodiment of cable-type fault detector, also comprises the memory module 160 for storing historical detection information; Described memory module 160 is all electrically connected with human-machine interface module 150 and cable-type fault detector 200; Described memory module 160 is stored detection instruction and the testing result historical information that transmitting terminal detection module 120, receiving end detection module 130 and serial ports detection module 140 receive; Described memory module 160 is stored the fault history information that cable-type fault detector 200 detects; Described memory module 160 is carried out the storage of information or reads according to the storage or the reading command that send out from human-machine interface module 150, and the information of storing or read is outputed to human-machine interface module 150.
The present invention has also designed a kind of method for comprehensive detection of cable-type fault detector of the comprehensive detection system based on above-mentioned cable-type fault detector, comprises the following steps:
A. accept the detection instruction of outside input by human-machine interface module 150; And instruction is sent to and detects main control module 110;
B. detect the instruction of the outside input of main control module 110 judgement; The instruction of outside input is that transmitting terminal detection instruction enters step c; The instruction of outside input is that receiving end detection instruction enters steps d; The instruction of outside input is that serial ports detection instruction enters step e;
C. described transmitting terminal detection module 120 carries out transmitting terminal input, and the signal detecting is sent to and detects main control module 110;
D. described receiving end detection module 130 carries out receiving end signal detection, and the signal detecting is sent to and detects main control module 110;
E. described serial ports detection module 140 carries out serial communication input, and the signal detecting is sent to and detects main control module 110;
F. any one or more signals that described detection main control module 110 detects according to described step c, steps d step e are comprehensively analyzed, and analysis result is sent to human-machine interface module 150.
The method for comprehensive detection of described cable-type fault detector, described in described step f, comprehensive analysis is further comprising the steps of:
Described in f1.1, detect main control module 110 and receive the correct fault-signal sending from receiving end detection module 130, judge that cable-type probe detects correct fault-signal at the receiving end of cable-type failure indicator terminal 220; Described detection main control module 110 output cable type probe 230 and optical fiber 240 information working properly;
Described in f1.2, detect the fault-signal that main control module 110 receives the distortion sending from receiving end detection module 130, described detection main control module 110 has also received the correct fault-signal sending from receiving end detection module 130, described detection main control module 110 output cable the types 230 working properly and information optical fiber 240 operation irregularity information of popping one's head in, or the described detection main control module 110 output cable types 230 output power abnormal informations of popping one's head in;
Described in f1.3, detect the fault-signal that main control module 110 receives the distortion sending from receiving end detection module 130, described detection main control module 110 has also received the fault-signal of the distortion sending from receiving end detection module 130, the described detection main control module 110 output cable types 230 operation irregularity information of popping one's head in;
Described in f1.4, detect the fault-signal that main control module 110 does not receive the correct or distortion sending from receiving end detection module 130, receive only the correct fault-signal sending from transmitting terminal detection module 120, described detection main control module 110 output cable the types 230 working properly and optical fiber 240 operation irregularity information of popping one's head in;
Described in f1.5, detect the fault-signal that main control module 110 does not receive the correct or distortion sending from receiving end detection module 130, receive only the fault-signal of the distortion sending from transmitting terminal detection module 120, pop one's head in 230 operation irregularities and optical fiber 240 operation irregularity information of described detection main control module 110 output cable types;
Described in f1.6, detect the fault-signal that main control module 110 does not receive the correct or distortion sending from receiving end detection module 130, do not receive the fault-signal of the distortion sending from transmitting terminal detection module 120, the described detection main control module 110 output cable types 230 operation irregularity information of popping one's head in yet.
The method for comprehensive detection of described cable-type fault detector, comprehensive analysis described in described step f comprises the following steps again:
The normal serial communication signal that described in f2.1, serial ports detection module 140 collects, is judged as serial communication between cable-type fault detector controlling center and cable-type failure indicator terminal 220 normal; Described detection main control module 110 is exported serial communication normal information;
The abnormal serial communication signal that described in f2.2, serial ports detection module 140 collects, is judged as serial communication between cable-type fault detector controlling center and cable-type failure indicator terminal 220 abnormal; Described detection main control module 110 is exported serial ports communication abnormality information;
Described in f2.3, serial ports detection module 140 is adopted the abnormal or normal serial communication signal that collection does not arrive, but receiving end detection module 130 has detected correct fault-signal, is judged as cable-type failure indicator terminal 220 abnormal; Described detection main control module 110 output cable type failure indicator terminal 220 information;
Described in f2.4, serial ports detection module 140 is adopted the abnormal or normal serial communication signal that collection does not arrive, and receiving end detection module 130 does not detect fault-signal, transmitting terminal detection module 120 does not detect fault-signal yet, described detection main control module 110 output cable types 230 abnormal informations of popping one's head in;
Described in f2.5, serial ports detection module 140 is adopted the abnormal or normal serial communication signal that collection does not arrive, and receiving end detection module 130 does not detect fault-signal, transmitting terminal detection module 120 has detected normal fault-signal, and described detection main control module 110 output cable types pop one's head in 230 normally and optical fiber 240 abnormal informations;
Described in f2.6, serial ports detection module 140 is adopted the abnormal or normal serial communication signal that collection does not arrive; and receiving end detection module 130 does not detect fault-signal; transmitting terminal detection module 120 has detected the fault-signal of distortion, described detection main control module 110 output cable types 230 abnormal informations of popping one's head in.
In test process, the comprehensive detection system of detection streamer type fault detector uses IO interface to be connected to the data sending terminal of cable-type fault detect probe and the optical fiber receiving end of terminal, record the waveform that probe sends, and record the waveform of terminal receiver side, by judging high level and low level width, whether the data that can judge transmission are qualified, and whether the data that receive are failed to report etc.
The quality of detection and recording light optical fiber signaling, becomes the key of locating fault.As Fig. 2, provide normal optical fiber waveform and the contrast that the fiber-optic signal waveform distorting occurs, in figure, a is normal waveform, b is distorted waveform; It is larger that test shows that height temperature receives impact to optical fiber, is embodied in that receiver section pulsewidth narrows, optical fiber length and degree of crook also affect the signal quality that optical fiber receives to a great extent.
Identification cable-type fault detector failure cause comprises following several situation: if 1. broken down, probe transmitting terminal does not send data, is the reasons such as the inadequate or battery electric quantity of probe precision is not enough.If the optical fiber code distortion that 2. probe sends is larger, i.e. pulsewidth and different design is judged as cable-type fault detect probe abnormal, be likely the battery electric quantity deficiency of cable-type fault detect probe, or probe precision is inadequate.3. if to send signal normal for probe, larger but terminal receives distortion, consider that whether receiving sensitivity is enough, whether pop one's head in that it is inadequate to send light intensity, or the poor light intensity attenuation that causes of optical fiber quality is too many.If 4. fiber section communication is all normal, it is normal to be that receiving end collection receives the fiber-optic signal waveform received of optical fiber head, but the controlling center of cable-type fault detector is not received failure message, check whether serial communication reports, if do not reported, be terminal processes mistake, or correctly do not recognize the signal that probe sends.Also can know by communicating by letter of detection streamer type failure indicator terminal and cable-type fault detector main website the signal that the whether correct identification probe of cable-type failure indicator terminal sends.
The comprehensive detection system of cable-type fault detector can be widely applied among research and development, production and the test of cable-type fault detector, also can be applied in field failure location and plant maintenance.
Also the comprehensive detection system of cable-type fault detector and cable fault indicator can be combined, possess the function of cable fault indicator simultaneously, fault that also can detection streamer fault detector; Such comprehensive tester can facilitate location and the various faults of detection online, reduces the working strength of maintainer to field condition location fault, increases substantially the accuracy of localization of fault and the time of significantly saving localization of fault simultaneously.
The comprehensive detection system of the designed cable-type fault detector of first the present invention of the present invention design is respectively that cable-type fault detect probe and optical fiber interface place and cable-type failure indicator terminal and optical fiber interface place carry out signals collecting and detection at the two ends of the Transmission Fibers of cable-type fault detector; Obtain probe transmitted signal, and signal after Optical Fiber Transmission; With this judge cable-type fault detect probe and optical fiber whether working properly; Therefore possessed the hardware condition that obtains cable-type fault detect probe and fiber failure information from source fast, improved cable-type fault detector localization of fault efficiency.
The comprehensive detection system of the designed cable-type fault detector of the present invention is also at the communication interface that has detected cable-type failure indicator terminal and cable-type fault detector controlling center; Quick orientation and communication interface fault in the time of communication interface fault; Further promote cable-type fault detector localization of fault efficiency.
The comprehensive detection system of the designed cable-type fault detector of the present invention also has memory module to preserve historical failure information and the historical detection information of the comprehensive detection system of cable-type fault detector and cable-type fault detector, guarantee that dependent failure information and detection information are recorded, and avoided information dropout, provide historical data reference for locating fast fault.
The method for comprehensive detection of the designed cable-type fault detector of the present invention detects by these three main node of two ends of the communication interface for cable-type fault detector and Transmission Fibers the signal obtaining and carries out sectionalization test location; The method of this sectionalization test location, checks fault segmentation and location, can navigate to fast the abort situation of cable-type fault detector.
The comprehensive detection system of cable-type fault detector that the present invention is designed and the method for comprehensive detection of cable-type fault detector, can be widely used among the research and development, production, test process of cable-type fault detector, also can, with cable-type fault detector simultaneously in the on-the-spot operation of electrical network, improve the reliability of electric network fault detection and localization.
The comprehensive detection system of cable-type fault detector that the present invention is designed and the method for comprehensive detection of cable-type fault detector be the energy guilty culprit of positioning cable type fault detector system fast in research and development, test and the operation of cable-type fault detector, has extraordinary practical value.
Claims (10)
1. the comprehensive detection system of a cable-type fault detector, comprise and detect main control module (110) and human-machine interface module (150), it is characterized in that: also comprise transmitting terminal detection module (120), receiving end detection module (130) and serial ports detection module (140);
Described transmitting terminal detection module (120), receiving end detection module (130), serial ports detection module (140), human-machine interface module (150) are all electrically connected with detection main control module (110);
Described human-machine interface module (150) is accepted the detection instruction of outside input, and detection instruction is sent to and detects main control module (110), then be sent to transmitting terminal detection module (120), receiving end detection module (130) and serial ports detection module (140) by detecting main control module (110);
Described transmitting terminal detection module (120) detects instruction according to the transmitting terminal receiving and carries out transmitting terminal input;
The fiber-optic signal waveform that described transmitting terminal detection module (120) sends at transmitting terminal by the cable-type fibre-optical probe of IO interface collection cable-type fault detector; And the fiber-optic signal waveform collecting is sent to and detects main control module (110);
Described receiving end detection module (130) detects instruction according to the receiving end receiving and carries out receiving end signal detection;
Described receiving end detection module (130) gathers the cable-type fibre-optical probe of cable-type fault detector at the fiber-optic signal waveform receiving of receiving end by IO interface; And the fiber-optic signal waveform collecting is sent to and detects main control module (110);
Described serial ports detection module (140) detects instruction according to the serial ports receiving and carries out serial communication detection;
Described serial ports detection module (140) is connected to by serial port power on the serial communication interface of detection streamer type fault detector; Described serial ports detection module (140) is sent to the serial communication data that detect to detect main control module (110);
Described detection main control module (110) is comprehensively analyzed according to the above-mentioned fiber-optic signal waveform and the serial communication data that receive, and analysis result is sent to described human-machine interface module (150).
2. the comprehensive detection system of cable-type fault detector according to claim 1, is characterized in that:
Described human-machine interface module (150) is electrically connected with transmitting terminal detection module (120), receiving end detection module (130) and serial ports detection module (140);
Described human-machine interface module (150) is accepted the detection instruction of outside input and is directly transmitted and detect instruction to described transmitting terminal detection module (120), receiving end detection module (130) and serial ports detection module (140);
Described transmitting terminal detection module (120), receiving end detection module (130) and serial ports detection module (140) receive respectively the transmitting terminal sending from described human-machine interface module (150) and detect instruction, receiving end detection instruction and serial ports detection instruction;
Described transmitting terminal detection module (120) detects instruction according to the transmitting terminal receiving and carries out transmitting terminal input;
The fiber-optic signal waveform that described transmitting terminal detection module (120) sends at transmitting terminal by the cable-type fibre-optical probe of IO interface collection cable-type fault detector; And the fiber-optic signal waveform collecting is sent to human-machine interface module (150);
Described receiving end detection module (130) detects instruction according to the receiving end receiving and carries out receiving end signal detection;
Described receiving end detection module (130) gathers the cable-type fibre-optical probe of cable-type fault detector at the fiber-optic signal waveform receiving of receiving end by IO interface; And the fiber-optic signal waveform collecting is sent to human-machine interface module (150);
Described serial ports detection module (140) detects instruction according to the serial ports receiving and carries out serial communication detection;
Described serial ports detection module (140) is connected to by serial port power on the serial communication interface of detection streamer type fault detector; The serial communication data that detect are sent to human-machine interface module (150) by described serial ports detection module (140).
3. the comprehensive detection system of cable-type fault detector according to claim 1, is characterized in that:
Described system also comprises the cable-type fault detector (200) that is used to indicate electric network fault position;
Described cable-type fault detector (200) also comprises cable-type fault detector controlling center (210), cable-type failure indicator terminal (220), the cable-type probe (230) of surveying for electric network fault and the optical fiber (240) for the transmission of electric network fault signal;
Described optical fiber (240) comprises optical fiber delivery header (241) and optical fiber Receiver (242);
Described cable-type probe (230) is connected with described optical fiber delivery header (241);
Described optical fiber Receiver (242) is connected with described cable-type failure indicator terminal (220);
Described cable-type failure indicator terminal (220) is electrically connected with cable-type fault detector controlling center (210) by serial ports; Or described cable-type failure indicator terminal (220) is by GPRS interface and cable-type fault detector controlling center (210) wireless connections.
4. the comprehensive detection system of cable-type fault detector according to claim 3, is characterized in that:
Described cable-type failure indicator terminal (220) comprises the communication module (222) for cable-type failure indicator terminal (220) and cable-type fault detector controlling center (210) communication;
Described communication module (222) is electrically connected with cable-type fault detector controlling center (210) by serial ports; Or described communication module (222) is by GPRS interface and cable-type fault detector controlling center (210) wireless connections.
5. the comprehensive detection system of cable-type fault detector according to claim 1, is characterized in that:
Described system also comprises the memory module (160) for storing historical detection information;
Detection instruction and testing result historical information that described memory module (160) storage transmitting terminal detection module (120), receiving end detection module (130) and serial ports detection module (140) receive;
Described memory module (160) is electrically connected with detection main control module (110);
Described memory module (160) detects the storage of instruction and testing result historical information or reads according to detecting main control module (110) storage sending out from human-machine interface module (150) or the reading command that receive, and by main control module (110) output or directly output to human-machine interface module (150) after testing of storage or the information that reads.
6. the comprehensive detection system of cable-type fault detector according to claim 2, is characterized in that:
Described system also comprises the memory module (160) for storing historical detection information;
Detection instruction and testing result historical information that described memory module (160) storage transmitting terminal detection module (120), receiving end detection module (130) and serial ports detection module (140) receive;
Described memory module (160) is electrically connected with human-machine interface module (150);
Described memory module (160) detects the storage of instruction and testing result historical information or reads according to the storage or the reading command that send out from human-machine interface module (150), and the information of storing or read is outputed to human-machine interface module (150).
7. the comprehensive detection system of cable-type fault detector according to claim 3, is characterized in that:
Described system also comprises the memory module (160) for storing historical detection information;
Described memory module (160) is all electrically connected with human-machine interface module (150) and cable-type fault detector (200);
Detection instruction and testing result historical information that described memory module (160) storage transmitting terminal detection module (120), receiving end detection module (130) and serial ports detection module (140) receive;
The fault history information that described memory module (160) storage cable-type fault detector (200) detects;
Described memory module (160) is carried out respectively the storage of information or reads according to the storage or the reading command that send out from human-machine interface module (150), and the information of storing or read is outputed to human-machine interface module (150).
8. a method for comprehensive detection for cable-type fault detector, comprises the following steps:
A. accept the detection instruction of outside input by human-machine interface module (150); And instruction is sent to and detects main control module (110);
B. detect the instruction of the outside input of main control module (110) judgement; The instruction of outside input is that transmitting terminal detection instruction enters step c; The instruction of outside input is that receiving end detection instruction enters steps d; The instruction of outside input is that serial ports detection instruction enters step e;
C. described transmitting terminal detection module (120) carries out transmitting terminal input, and the signal detecting is sent to and detects main control module (110);
D. described receiving end detection module (130) carries out receiving end signal detection, and the signal detecting is sent to and detects main control module (110);
E. described serial ports detection module (140) carries out serial communication input, and the signal detecting is sent to and detects main control module (110);
F. any one or more signals that described detection main control module (110) detects according to described step c, steps d step e are comprehensively analyzed, and analysis result is sent to human-machine interface module (150).
9. the method for comprehensive detection of cable-type fault detector according to claim 8, described in described step f, comprehensive analysis is further comprising the steps of:
Described in f1.1, detect main control module (110) and receive the correct fault-signal sending from receiving end detection module (130), judge that cable-type probe detects correct fault-signal at the receiving end of cable-type failure indicator terminal (220); Described detection main control module (110) output cable type probe (230) and optical fiber (240) information working properly;
Described in f1.2, detect the fault-signal that main control module (110) receives the distortion sending from receiving end detection module (130), described detection main control module (110) has also received the correct fault-signal sending from receiving end detection module (130), working properly and information optical fiber (240) the operation irregularity information of described detection main control module (110) output cable type probe (230), or described detection main control module (110) output cable type probe (230) output power abnormal information;
Described in f1.3, detect the fault-signal that main control module (110) receives the distortion sending from receiving end detection module (130), described detection main control module (110) has also received the fault-signal of the distortion sending from receiving end detection module (130), described detection main control module (110) output cable type probe (230) operation irregularity information;
Described in f1.4, detect the fault-signal that main control module (110) does not receive the correct or distortion sending from receiving end detection module (130), receive only the correct fault-signal sending from transmitting terminal detection module (120), working properly and optical fiber (240) the operation irregularity information of described detection main control module (110) output cable type probe (230);
Described in f1.5, detect the fault-signal that main control module (110) does not receive the correct or distortion sending from receiving end detection module (130), receive only the fault-signal of the distortion sending from transmitting terminal detection module (120), described detection main control module (110) output cable type probe (230) operation irregularity and optical fiber (240) operation irregularity information;
Described in f1.6, detect the fault-signal that main control module (110) does not receive the correct or distortion sending from receiving end detection module (130), do not receive the fault-signal of the distortion sending from transmitting terminal detection module (120), described detection main control module (110) output cable type probe (230) operation irregularity information yet.
10. the method for comprehensive detection of cable-type fault detector according to claim 8, comprehensive analysis described in described step f comprises the following steps again:
The normal serial communication signal that described in f2.1, serial ports detection module (140) collects, is judged as serial communication between cable-type fault detector controlling center and cable-type failure indicator terminal (220) normal; Described detection main control module (110) output serial communication normal information;
The abnormal serial communication signal that described in f2.2, serial ports detection module (140) collects, is judged as serial communication between cable-type fault detector controlling center and cable-type failure indicator terminal (220) abnormal; Described detection main control module (110) output serial ports communication abnormality information;
Described in f2.3, serial ports detection module (140) is adopted the abnormal or normal serial communication signal that collection does not arrive, but receiving end detection module (130) has detected correct fault-signal, is judged as cable-type failure indicator terminal (220) abnormal; Described detection main control module (110) output cable type failure indicator terminal (220) information;
Described in f2.4, serial ports detection module (140) is adopted the abnormal or normal serial communication signal that collection does not arrive, and receiving end detection module (130) does not detect fault-signal, transmitting terminal detection module (120) does not detect fault-signal yet, described detection main control module (110) output cable type probe (230) abnormal information;
Described in f2.5, serial ports detection module (140) is adopted the abnormal or normal serial communication signal that collection does not arrive, and receiving end detection module (130) does not detect fault-signal, transmitting terminal detection module (120) has detected normal fault-signal, and described detection main control module (110) output cable type is popped one's head in (230) normally and optical fiber (240) abnormal information;
Described in f2.6, serial ports detection module (140) is adopted the abnormal or normal serial communication signal that collection does not arrive; and receiving end detection module (130) does not detect fault-signal; transmitting terminal detection module (120) has detected the fault-signal of distortion, described detection main control module (110) output cable type probe (230) abnormal information.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443326A (en) * | 2016-08-30 | 2017-02-22 | 上海金智晟东电力科技有限公司 | Test system and method for fault locator of power distribution network |
| CN107449454A (en) * | 2017-08-30 | 2017-12-08 | 红云红河烟草(集团)有限责任公司 | A kind of ROFA transport trolleys high frequency cable Anti-scratching detection means and method |
| CN107907919A (en) * | 2017-12-15 | 2018-04-13 | 合肥国为电子有限公司 | A kind of Distributed seismic prospecting instrument Cable Test Platform and its test method |
| CN108413922A (en) * | 2018-05-10 | 2018-08-17 | 新疆维吾尔自治区地震局 | A kind of fast detector for Borehole strain observation instrument |
| CN109975728A (en) * | 2017-12-28 | 2019-07-05 | 国网山东省电力公司电力科学研究院 | Fault detector intelligence full-automatic assembly line comprehensive detection system and method |
| CN109976302A (en) * | 2017-12-28 | 2019-07-05 | 沈阳新松机器人自动化股份有限公司 | Transmission state signal detection device and robot |
| CN111968344A (en) * | 2020-07-31 | 2020-11-20 | 中国铁道科学研究院集团有限公司 | Signal interface detection equipment and method for railway earthquake early warning monitoring system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7315169B1 (en) * | 2001-10-26 | 2008-01-01 | Schweitzer Engineering Laboratories, Inc. | Microprocessor controlled fault indicator having inrush restraint circuit |
| CN202383280U (en) * | 2011-12-19 | 2012-08-15 | 南京丹迪克科技开发有限公司 | Detection device of power line fault indicator |
| CN202886581U (en) * | 2012-10-26 | 2013-04-17 | 广西电网公司电力科学研究院 | Line fault indicator detecting system |
| CN103529885A (en) * | 2013-10-14 | 2014-01-22 | 国家电网公司 | Output control device for power distribution line fault indicator detection |
| CN103529417A (en) * | 2013-10-14 | 2014-01-22 | 国家电网公司 | Automatic detection system for fault indicators for distributing line |
| CN103605046A (en) * | 2013-11-14 | 2014-02-26 | 航天科工深圳（集团）有限公司 | Fault indicator and transmission method thereof |
-
2014
- 2014-06-19 CN CN201410274638.4A patent/CN104090252B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7315169B1 (en) * | 2001-10-26 | 2008-01-01 | Schweitzer Engineering Laboratories, Inc. | Microprocessor controlled fault indicator having inrush restraint circuit |
| CN202383280U (en) * | 2011-12-19 | 2012-08-15 | 南京丹迪克科技开发有限公司 | Detection device of power line fault indicator |
| CN202886581U (en) * | 2012-10-26 | 2013-04-17 | 广西电网公司电力科学研究院 | Line fault indicator detecting system |
| CN103529885A (en) * | 2013-10-14 | 2014-01-22 | 国家电网公司 | Output control device for power distribution line fault indicator detection |
| CN103529417A (en) * | 2013-10-14 | 2014-01-22 | 国家电网公司 | Automatic detection system for fault indicators for distributing line |
| CN103605046A (en) * | 2013-11-14 | 2014-02-26 | 航天科工深圳（集团）有限公司 | Fault indicator and transmission method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李克文等: "配电线路故障指示器测试仪的设计", 《广东电力》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443326A (en) * | 2016-08-30 | 2017-02-22 | 上海金智晟东电力科技有限公司 | Test system and method for fault locator of power distribution network |
| CN107449454A (en) * | 2017-08-30 | 2017-12-08 | 红云红河烟草(集团)有限责任公司 | A kind of ROFA transport trolleys high frequency cable Anti-scratching detection means and method |
| CN107907919A (en) * | 2017-12-15 | 2018-04-13 | 合肥国为电子有限公司 | A kind of Distributed seismic prospecting instrument Cable Test Platform and its test method |
| CN107907919B (en) * | 2017-12-15 | 2024-01-26 | 合肥国为电子有限公司 | Distributed seismic prospecting instrument cable testing platform and testing method thereof |
| CN109975728A (en) * | 2017-12-28 | 2019-07-05 | 国网山东省电力公司电力科学研究院 | Fault detector intelligence full-automatic assembly line comprehensive detection system and method |
| CN109976302A (en) * | 2017-12-28 | 2019-07-05 | 沈阳新松机器人自动化股份有限公司 | Transmission state signal detection device and robot |
| CN108413922A (en) * | 2018-05-10 | 2018-08-17 | 新疆维吾尔自治区地震局 | A kind of fast detector for Borehole strain observation instrument |
| CN111968344A (en) * | 2020-07-31 | 2020-11-20 | 中国铁道科学研究院集团有限公司 | Signal interface detection equipment and method for railway earthquake early warning monitoring system |
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