CN106154114A - Fault testing apparatus and method - Google Patents

Fault testing apparatus and method Download PDF

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Publication number
CN106154114A
CN106154114A CN201610626488.8A CN201610626488A CN106154114A CN 106154114 A CN106154114 A CN 106154114A CN 201610626488 A CN201610626488 A CN 201610626488A CN 106154114 A CN106154114 A CN 106154114A
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CN
China
Prior art keywords
resistance
against ground
insulation against
under test
preset
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610626488.8A
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Chinese (zh)
Inventor
陈维
杨祖明
尤刚
尤龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Network Technology Co Ltd
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Sichuan Network Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan Network Technology Co Ltd filed Critical Sichuan Network Technology Co Ltd
Priority to CN201610626488.8A priority Critical patent/CN106154114A/en
Publication of CN106154114A publication Critical patent/CN106154114A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08Locating faults in cables, transmission lines, or networks
    • G01R31/081Locating faults in cables, transmission lines, or networks according to type of conductors
    • G01R31/083Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground

Abstract

The invention provides a kind of fault testing apparatus and method, relate to fault test equipment field.This fault testing apparatus and method are by accessing an element under test after obtaining detection instruction;Gather the DC resistance of described element under test and the insulation against ground resistance value of described element under test;Judge whether described element under test breaks down according to the DC resistance detected with insulation against ground resistance value, and generate object information.This fault testing apparatus and method can carry out the most real-time monitoring to cable fault, it is achieved the instantaneity of fault pre-alarming;Whether railway signal transmission cable produces fault, and measurement result accuracy is high, and can provide concrete accident analysis analysis;And it is without the most on duty, convenient and swift.

Description

Fault testing apparatus and method
Technical field
The present invention relates to fault test equipment field, in particular to a kind of fault testing apparatus and method.
Background technology
Railway signal transmission cable is usually used in possessing data in railway signal system to be transmitted, communicates and carry electric energy etc. Function.Railway signal cable usually can cause breaking down because of some external factor, such as, rain erosion, high temperature expose and Artificial damages etc., once railway signal circuit breaks down, then train cannot be properly functioning, and therefore detection railway signal cable is No can normally work necessary.
In prior art, the method for detection railway signal transmission cable is usually in the one end by two railway signal cables Short circuit, then two railway signal cables the other end with circuit tester check railway signal transmission cable D.C. resistance size and Railway signal transmission cable insulation against ground value is checked by megger, and by the experience of survey crew according to the direct current detected Resistance and insulation against ground value judge whether railway signal transmission cable breaks down, thus record testing result.Then people is passed through The mode of work detection includes following shortcoming: 1, cable fault cannot be carried out the most real-time monitoring, it is impossible to realize fault pre-alarming Instantaneity 2, whether railway signal transmission cable is produced fault, often by the experience of testing staff, measurement result is inadequate Accurately;3, manual detection needs certain human cost.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of fault testing apparatus and method.
First aspect, embodiments provides a kind of fault testing apparatus, accesses circuit, direct current including element under test Electrical resistance collection module, insulation against ground electrical resistance collection module and controller, described controller accesses circuit with described element under test Electrical connection, described controller for after the detection instruction obtaining input, controls described element under test and accesses circuit and to be measured Element connects, and it is the most electric that described element under test accesses circuit and described D.C. resistance acquisition module, insulation against ground electrical resistance collection module Connecting, described D.C. resistance Acquisition Circuit gathers the unidirectional current of described element under test for accessing circuit by described element under test Resistance, described insulation against ground electrical resistance collection module gathers the right of described element under test for accessing circuit by described element under test Ground insulating resistance value, described controller is additionally operable to described in the DC resistance detected and the judgement of insulation against ground resistance value treat Survey whether element breaks down, and generate object information.
Second aspect, the embodiment of the present invention additionally provides a kind of fault testing method, and described fault testing method includes:
Obtain the detection instruction of input, and access an element under test after obtaining detection instruction;
Gather the DC resistance of described element under test and the insulation against ground resistance value of described element under test;
Judge whether described element under test breaks down according to the DC resistance detected with insulation against ground resistance value, and Generate object information.
Compared with prior art, a kind of fault testing apparatus of present invention offer and method, by obtaining detection instruction Rear access one element under test;Gather the DC resistance of described element under test and the insulation against ground resistance value of described element under test; Judge whether described element under test breaks down according to the DC resistance detected with insulation against ground resistance value, and generate result Information.This fault testing apparatus and method can carry out the most real-time monitoring to cable fault, it is achieved the instantaneity of fault pre-alarming; Whether railway signal transmission cable produces fault, and measurement result accuracy is high, and can provide concrete accident analysis analysis; And it is without the most on duty, convenient and swift.
For making the above-mentioned purpose of the present invention, feature and advantage to become apparent, preferred embodiment cited below particularly, and coordinate Appended accompanying drawing, is described in detail below.
Accompanying drawing explanation
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is The a part of embodiment of the present invention rather than whole embodiments.Generally implement with the present invention illustrated described in accompanying drawing herein The assembly of example can be arranged with various different configurations and design.Therefore, reality to the present invention provided in the accompanying drawings below The detailed description executing example is not intended to limit the scope of claimed invention, but is merely representative of the selected enforcement of the present invention Example.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise Every other embodiment, broadly falls into the scope of protection of the invention.
The circuit of the failure detector that Fig. 1 provides for the embodiment of the present invention connects block diagram;
Fig. 2 accesses the circuit diagram of circuit for the element under test that the embodiment of the present invention provides;
The program flow diagram of the fault detection method that Fig. 3 provides for the embodiment of the present invention.
Wherein, the corresponding relation between reference and component names is as follows: fault testing apparatus 100, element under test connects Enter circuit 101, D.C. resistance acquisition module 102, insulation against ground electrical resistance collection module 103, controller 104, power module 105, Button inputting circuits 106, display screen 107, communication module 108, alarm 109.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Ground describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Generally exist Can arrange and design with various different configurations with the assembly of the embodiment of the present invention that illustrates described in accompanying drawing herein.Cause This, be not intended to limit claimed invention to the detailed description of the embodiments of the invention provided in the accompanying drawings below Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing The every other embodiment obtained on the premise of going out creative work, broadly falls into the scope of protection of the invention.
Referring to Fig. 1, a kind of fault testing apparatus 100 that the embodiment of the present invention provides, for carrying out an element under test Detection, in the present embodiment, is that a cable under test illustrates with element under test.Specifically, fault testing apparatus 100 includes to be measured Element accesses circuit 101, D.C. resistance acquisition module 102, power module 105, button inputting circuits 106, display screen 107, right Ground insulation resistance acquisition module 103 and controller 104.Controller 104 and element under test access circuit 101, key-press input electricity Road 106, power module 105 and display screen 107 all electrically connect.Button inputting circuits 106 is for obtaining the detection of user's input Instruction, controller 104 is for, after the detection instruction obtaining input, controlling element under test and access circuit 101 and a cable under test Connect.Many groups 12 are used to select 1 relay circuit as in figure 2 it is shown, element under test accesses circuit 101, can be to different cable under test Carry out selecting to connect.Wherein, the mode of input detection instruction can be to need the to be measured of detection in button inputting circuits 106 input The sequence number of cable, and click on confirmation.
Element under test accesses circuit 101 and D.C. resistance acquisition module 102, insulation against ground electrical resistance collection module 103 all electricity Connecting, D.C. resistance Acquisition Circuit gathers the DC resistance of cable under test, over the ground for accessing circuit 101 by element under test Insulation resistance acquisition module 103 gathers the insulation against ground resistance value of cable under test for accessing circuit 101 by element under test.This In embodiment, the acquisition mode of D.C. resistance is as follows: after guaranteeing that element under test accesses the input of circuit 101 two-way, reading straight The sampled value of leakage resistance, controller 104 is calculated initial resistivity value by computing formula, then is calculated by non-liner revision algorithm Go out DC resistance, be saved in memorizer;After test completes D.C. resistance, then test cable under test correspondence insulating resistance value, Also memorizer it is saved in after having tested.
Controller 104 is additionally operable to according to whether the DC resistance detected and insulation against ground resistance value judge element under test Break down, and generate object information, and object information transmission is shown to display screen 107.Display screen 107 can be liquid Crystal display or touch control display.If touch control display, it can be to support single-point and the capacitance touching control of multi-point touch operation Screen or resistance type touch control screen etc..Support that single-point and multi-point touch operation refer to touch control display can sense from this touch-control and show The touch control operation that on device, one or more positions produce simultaneously, and the touch control operation this sensed transfers to controller 104 to enter Row calculates and processes.
Specifically, the mode of controller 104 failure judgement is specifically as follows: it is straight that controller 104 judges to detect respectively Whether leakage resistance value is in default scope and whether the insulation against ground resistance value that detects is more than the threshold value preset, if detecting DC resistance in default scope and the insulation against ground resistance value that detects less than or equal to the threshold value preset time, generate Fisrt fault object information.Wherein, Fisrt fault object information is that cable failure causes short-circuit between conductors.If the unidirectional current detected Resistance in default scope and the insulation against ground resistance value that detects more than the threshold value preset time, according to pre-stored multiple absolutely The variation tendency of insulation values is predicted by edge value data, and generation predicts the outcome.
Controller 104 is additionally operable to judge respectively that the DC resistance detected is whether in default scope and detect Whether insulation against ground resistance value is more than the threshold value preset, if the DC resistance detected less than the scope preset and detects When insulation against ground resistance value is more than the threshold value preset, generate the second fail result information, if the DC resistance detected is less than When the scope preset and the insulation against ground resistance value detected are less than or equal to the threshold value preset, generate the 3rd fail result letter Breath.Wherein, the second fail result information is that cable under test short-circuit conditions occurs, and the 3rd fail result information can be cable under test Certain the situation of shorted to earth occurs.
Controller 104 is additionally operable to judge respectively that the DC resistance detected is whether in default scope and detect Whether insulation against ground resistance value is more than the threshold value preset, if the DC resistance detected more than the scope preset and detects When insulation against ground resistance value is more than the threshold value preset, generate the 4th fail result information.If the DC resistance detected is more than When the scope preset and the insulation against ground resistance value detected are less than or equal to the threshold value preset, generate the 5th fail result letter Breath.Wherein the 4th fail result information is the situation that cable under test occurs that void is disconnected or opens a way, and the 5th fail result information is for treating Surveying cable and the situation of open circuit occur, and it is bad to insulate, may there is breakage in somewhere in cable under test.
It addition, in the present embodiment, described fault testing apparatus 100 also includes communication module 108 and alarm module, communication mould Block 108 and alarm 109 all electrically connect with controller 104.Wherein, communication module 108 can use wire communication module or nothing Line communication module, wire communication module can use WIFI module or bluetooth module, when cable under test breaks down, controller Fail result information can will be sent to a handheld terminal by 104 by wireless communication module so that staff learns in time and treats Survey the information that cable breaks down, and in time cable under test is keeped in repair.Wire communication module uses CAN, when to be measured When cable breaks down, fail result information can be transmitted to an intelligent terminal by controller 104 by CAN, such as, on duty The work computer of room), staff can view fail result information in the work computer of night shift room.It addition, controller 104 After determining cable under test appearance extremely, control alarm 109 and report to the police, obtain staff and learn that event occurs in cable under test in time Barrier.
Referring to Fig. 3, the embodiment of the present invention additionally provides a kind of fault testing method, it should be noted that the present embodiment The fault testing method provided, the technique effect of its ultimate principle and generation is identical with above-described embodiment, for briefly describing, this The not mentioned part of embodiment part, refers to corresponding contents in the above embodiments.Described fault testing method includes:
Step S301: obtain the detection instruction of input, and access an element under test after obtaining detection instruction.
Step S302: gather the DC resistance of described element under test and the insulation against ground resistance value of described element under test.
Step S303: judge respectively the DC resistance detected whether in default scope and detect the most exhausted Edge resistance value whether more than the threshold value preset, if the DC resistance detected in default scope and detect the most exhausted When edge resistance value is less than the threshold value preset, perform step S304;If the DC resistance detected is in default scope and examines When the insulation against ground resistance value measured is more than the threshold value preset, perform step S305;If the DC resistance detected is less than pre- If scope and the insulation against ground resistance value that detects more than the threshold value preset time, perform step S306;If the direct current detected When resistance value is less than or equal to, less than the scope preset and the insulation against ground resistance value detected, the threshold value preset, perform step S307;If the DC resistance detected is more than, more than the scope preset and the insulation against ground resistance value detected, the threshold value preset Time, perform step S308;If the DC resistance detected is little more than the scope preset and the insulation against ground resistance value detected In or equal to preset threshold value time, perform step S309.
Step S304: generate Fisrt fault object information.
Step S305: according to multiple insulation values data of pre-stored, the variation tendency of insulation values is predicted, and generates Predict the outcome.
Step S306: generate the second fail result information.
Step S307: generate the 3rd fail result information.
Step S308: generate the 4th fail result information.
Step S309: generate the 5th fail result information.
To sum up, a kind of fault testing apparatus of present invention offer and method, by accessing one after obtaining detection instruction Element under test;Gather the DC resistance of described element under test and the insulation against ground resistance value of described element under test;According to detection To DC resistance judge whether described element under test breaks down with insulation against ground resistance value, and generate object information.Should Fault testing apparatus and method can carry out the most real-time monitoring to cable fault, it is achieved the instantaneity of fault pre-alarming;To railway Whether signal-transmitting cable produces fault, and measurement result accuracy is high, and can provide concrete accident analysis analysis;And nothing Need the most on duty, convenient and swift.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it is also possible to pass through Other mode realizes.Device embodiment described above is only schematically, such as, and the flow chart in accompanying drawing and block diagram Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product, Function and operation.In this, each square frame in flow chart or block diagram can represent a module, program segment or the one of code Part, a part for described module, program segment or code comprises holding of one or more logic function for realizing regulation Row instruction.It should also be noted that at some as in the implementation replaced, the function marked in square frame can also be to be different from The order marked in accompanying drawing occurs.Such as, two continuous print square frames can essentially perform substantially in parallel, and they are the most also Can perform in the opposite order, this is depending on involved function.It is also noted that every in block diagram and/or flow chart The combination of the square frame in individual square frame and block diagram and/or flow chart, can be with function or the special base of action performing regulation System in hardware realizes, or can realize with the combination of specialized hardware with computer instruction.
It addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation Point, it is also possible to it is modules individualism, it is also possible to two or more modules are integrated to form an independent part.
If described function is using the form realization of software function module and as independent production marketing or use, permissible It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is the most in other words The part contributing prior art or the part of this technical scheme can embody with the form of software product, this meter Calculation machine software product is stored in a storage medium, including some instructions with so that a computer equipment (can be individual People's computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention. And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only Memory), random access memory are deposited The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.Need Illustrate, in this article, the relational terms of such as first and second or the like be used merely to by an entity or operation with Another entity or operating space separate, and there is any this reality between not necessarily requiring or imply these entities or operating The relation on border or order.And, term " includes ", " comprising " or its any other variant are intended to the bag of nonexcludability Contain, so that include that the process of a series of key element, method, article or equipment not only include those key elements, but also include Other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment. In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that including described key element Process, method, article or equipment in there is also other identical element.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies Change, equivalent, improvement etc., should be included within the scope of the present invention.It should also be noted that similar label and letter exist Figure below represents similar terms, therefore, the most a certain Xiang Yi accompanying drawing is defined, is then not required in accompanying drawing subsequently It is defined further and explains.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that Including process, method, article or the equipment of described key element there is also other identical element.

Claims (10)

1. a fault testing apparatus, it is characterised in that include that element under test accesses circuit, D.C. resistance acquisition module, over the ground Insulation resistance acquisition module and controller, described controller accesses circuit with described element under test and electrically connects, described controller For after the detection instruction obtaining input, control described element under test and access circuit and element under test connection, described to be measured Element accesses circuit and all electrically connects with described D.C. resistance acquisition module, insulation against ground electrical resistance collection module, described D.C. resistance Acquisition Circuit gathers the DC resistance of described element under test, described insulation against ground for accessing circuit by described element under test Electrical resistance collection module gathers the insulation against ground resistance value of described element under test for accessing circuit by described element under test, described Controller is additionally operable to judge whether described element under test occurs event according to the DC resistance detected and insulation against ground resistance value Barrier, and generate object information.
Fault testing apparatus the most according to claim 1, it is characterised in that described controller is additionally operable to judge to detect Whether DC resistance is in default scope and whether the insulation against ground resistance value that detects is more than the threshold value preset, and generates Object information.
Fault testing apparatus the most according to claim 2, it is characterised in that described controller is additionally operable to judge detection respectively To DC resistance whether in default scope and whether the insulation against ground resistance value that detects more than the threshold value preset, if The DC resistance detected is in default scope and the insulation against ground resistance value that detects is less than or equal to the threshold value preset Time, generate Fisrt fault object information, if the DC resistance detected is in default scope and the insulation against ground that detects When resistance value is more than the threshold value preset, according to multiple insulation values data of pre-stored, the variation tendency of insulation values is predicted, And generation predicts the outcome.
Fault testing apparatus the most according to claim 2, it is characterised in that described controller is additionally operable to judge detection respectively To DC resistance whether in default scope and whether the insulation against ground resistance value that detects more than the threshold value preset, if When the DC resistance detected is more than, less than the scope preset and the insulation against ground resistance value detected, the threshold value preset, generate Second fail result information, if the DC resistance detected is little less than the scope preset and the insulation against ground resistance value detected In or equal to preset threshold value time, generate the 3rd fail result information.
Fault testing apparatus the most according to claim 2, it is characterised in that described controller is additionally operable to judge detection respectively To DC resistance whether in default scope and whether the insulation against ground resistance value that detects more than the threshold value preset, if When the DC resistance detected is more than, more than the scope preset and the insulation against ground resistance value detected, the threshold value preset, generate 4th fail result information, if the DC resistance detected is little more than the scope preset and the insulation against ground resistance value detected In or equal to preset threshold value time, generate the 5th fail result information.
6. a fault testing method, it is characterised in that described fault testing method includes:
Obtain the detection instruction of input, and access an element under test after obtaining detection instruction;
Gather the DC resistance of described element under test and the insulation against ground resistance value of described element under test;
Judge whether described element under test breaks down according to the DC resistance detected with insulation against ground resistance value, and generate Object information.
Fault testing method the most according to claim 6, it is characterised in that the DC resistance that described foundation detects with Insulation against ground resistance value judges whether described element under test breaks down, and the step generating object information includes:
Judge that the DC resistance that detects is whether in default scope and whether the insulation against ground resistance value that detects is more than The threshold value preset, and generate object information.
Fault testing method the most according to claim 7, it is characterised in that the DC resistance that described foundation detects with Insulation against ground resistance value judges whether described element under test breaks down, and the step generating object information includes:
Judge respectively the DC resistance detected whether in default scope and the insulation against ground resistance value that detects whether More than the threshold value preset, if in default scope and the insulation against ground resistance value that detects is less than the DC resistance detected The threshold value preset, then generate Fisrt fault object information, if the DC resistance detected and detects in default scope Insulation against ground resistance value more than the threshold value preset time, according to multiple insulation values data of pre-stored variation tendency to insulation values It is predicted, and generation predicts the outcome.
Fault testing method the most according to claim 7, it is characterised in that the DC resistance that described foundation detects with Insulation against ground resistance value judges whether described element under test breaks down, and the step generating object information includes:
Judge respectively the DC resistance detected whether in default scope and the insulation against ground resistance value that detects whether More than the threshold value preset, if the DC resistance detected is more than less than the scope preset and the insulation against ground resistance value detected During the threshold value preset, generate the second fail result information, if the DC resistance detected less than the scope preset and detects Insulation against ground resistance value less than or equal to preset threshold value time, generate the 3rd fail result information.
Fault testing method the most according to claim 7, it is characterised in that the DC resistance that described foundation detects Judge whether described element under test breaks down with insulation against ground resistance value, and the step generating object information include:
Judge respectively the DC resistance detected whether in default scope and the insulation against ground resistance value that detects whether More than the scope preset, if the DC resistance detected is more than more than the scope preset and the insulation against ground resistance value detected During the threshold value preset, generate the 4th fail result information, if the DC resistance detected more than the scope preset and detects Insulation against ground resistance value less than or equal to preset threshold value time, generate the 5th fail result information.
CN201610626488.8A 2016-08-03 2016-08-03 Fault testing apparatus and method Pending CN106154114A (en)

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CN106644170A (en) * 2016-12-27 2017-05-10 福建宁德核电有限公司 Thermal resistor fault diagnosis device and method
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CN111077360A (en) * 2019-12-05 2020-04-28 湖南一二三智能科技有限公司 Target resistance live line measurement method and device and related components

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