CN206281938U

CN206281938U - A kind of cable fault detector

Info

Publication number: CN206281938U
Application number: CN201621423366.0U
Authority: CN
Inventors: 李俊江
Original assignee: Guangzhou Bei Silan Mdt Infotech Ltd
Current assignee: Guangzhou Beth blue environmental protection & Technology Co., Ltd.
Priority date: 2016-12-23
Filing date: 2016-12-23
Publication date: 2017-06-27
Anticipated expiration: 2026-12-23

Abstract

The utility model discloses a kind of cable fault detector, including tested cable, universal contact, pulse signal generator, insulaion resistance electric circuit inspection module, shift register group, on off test circuit module, A D converters, pulsed signal device, host computer, LCD display, operation button, database, alarm unit, single-chip microcomputer, relay group, resistance and clock chip.The utility model can be realized inserting survey and self study intelligence test, accurate testing, test speed is fast, automatically recorded by database and preserved coherent detection and the test information of cable, it is easy to the later stage to check, also allow for the performance that research improves cable, the pulse signal being provided with occurs and receiver, can quickly position the abnormal position of cable, accurate positioning, it is easy to maintenance of operating personnel etc., fault detection efficiency is improved, at the same it is changeable during detection, can simultaneously realize on-off circuit detection and insulaion resistance detection, sensitivity is high, simple to operate.

Description

A kind of cable fault detector

Technical field

The utility model is related to a kind of fault locator, specially a kind of cable fault detector, belongs to cable detection and sets Standby applied technical field.

Background technology

All kinds of cables are often thick with electric product, these cables have various models, specification, with various types of Connector, their quality directly influences the total quality situation of electric product, when cable breaks down, it is necessary to right Failure is detected, to recover its function in time, so the detection and fault detect of cable are all the indispensabilities that cable is normally used Equipment.

Detection includes two aspects of Detection results and detection speed, and good detection means requirement detection speed is fast, test essence Degree is high, accuracy rate is high, in current industry generally by the way of manually measuring, by the break-make at universal meter survey line cable two ends Situation, this method efficiency is low, error is big, the situation of missing inspection false retrieval usually occurs, in the market some special cable testers Device, such as netting twine on off test instrument, can only docking port model fix cable tested, do not possess versatility, it is difficult to meet general Test of the general family to all kinds of cables in rack.Therefore, a kind of cable fault detector is proposed regarding to the issue above.

Utility model content

The purpose of this utility model is that and provide a kind of cable fault detector in order to solve the above problems.

The utility model is achieved through the following technical solutions above-mentioned purpose, a kind of cable fault detector, including is tested Cable, insulaion resistance electric circuit inspection module, on off test circuit module, host computer and single-chip microcomputer, the tested cable pass through ten thousand Energy interface connects pulse signal generator, relay group and pulsed signal device, and pulse signal generator and pulse respectively Signal receiver connects single-chip microcomputer respectively；The single-chip microcomputer connects relay group by shift register, and relay group is connected Resistance；Between the single-chip microcomputer and insulaion resistance electric circuit inspection module by A D converters connect, and single-chip microcomputer connection it is upper Machine, on off test circuit module and clock chip；The host computer includes that LCD display, operation button, database and alarm are single Unit.

Preferably, the single-chip microcomputer connects host computer by CAN.

Preferably, the shift register group is a kind of shift register group of built-in six high-speed silicons door cmos device, And shift register group is bi-directionally connected single-chip microcomputer.

Preferably, the relay group is a kind of relay group of DPDT formula.

Preferably, the alarm unit is the alarm unit of a kind of use LED charactrons and buzzer composition.

The beneficial effects of the utility model are：This kind of cable fault detector, is capable of achieving to insert and survey and self study intelligence Test, accurate testing, test speed is fast, is recorded by database and preserved coherent detection and the test information of cable automatically, is easy to Later stage checks that also allow for the performance that research improves cable, the pulse signal being provided with occurs and receiver, can quickly position cable Abnormal position, accurate positioning is easy to maintenance of operating personnel etc., improves fault detection efficiency, at the same it is changeable during detection, can be same Shi Shixian on-off circuits detect and insulaion resistance detection that sensitivity is high, simple to operate, detection number of cable can sets itself, fit The detection of multi-core cable is closed, there is good economic benefit and social benefit, be adapted to promote the use of.

Brief description of the drawings

Fig. 1 is the utility model Integral connection structure schematic diagram.

1 in figure, tested cable, 2, universal contact, 3, pulse signal generator, 4, insulaion resistance electric circuit inspection module, 5, Shift register group, 6, on off test circuit module, 7, A D converters, 8, pulsed signal device, 9, host computer, 91, LCD Display screen, 92, operation button, 93, database, 94, alarm unit, 10, single-chip microcomputer, 11, relay group, 12, resistance, 13, when Clock chip.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.

Refer to shown in Fig. 1, a kind of cable fault detector, including tested cable 1, insulaion resistance electric circuit inspection module 4, On off test circuit module 6, host computer 9 and single-chip microcomputer 10, the tested cable 1 connects pulse respectively by universal contact 2 to be believed Number generator 3, relay group 11 and pulsed signal device 8, it is easy to connect by the connected mode of universal contact 2, insert at any time Enter and detect at any time, realize being used for quickly detecting short-circuit, the breaking heteromophism of cable, and realize essence by way of pulse signal Certainly position, 48 output ends of the shift register group 5 connect relay group 11 respectively, and the relay group 11 is connected respectively Core, can at most connect 48 cores, and obstruct detection, the pulse signal generator 3 and pulsed signal are carried out to core Device 8 connects single-chip microcomputer 10 respectively, is controlled to send pulse signal in pulse signal generator 3 by single-chip microcomputer 10, is running into high resistant Will be reflected when open circuit, short circuit or destination terminal, received by pulsed signal device 8, in this way the abnormal cable of accurate detection Position；The single-chip microcomputer 10 connects relay group 11, the connection resistance 12 of the relay group 11 by shift register 5；Institute State between single-chip microcomputer 10 and insulaion resistance electric circuit inspection module 4 by A D converters 7 connect, realize the conversion of detection signal, institute State the connection of single-chip microcomputer 10 host computer 9, on off test circuit module 6 and clock chip 13；The host computer 9 includes LCD display 91st, operation button 92, database 93 and alarm unit 94, when exception is found and alarm, while by the cable number of Jiang Ce According to being stored in inside database 93.

Used as a kind of technical optimization scheme of the present utility model, the single-chip microcomputer 10 connects host computer 9 by CAN, Realize the transmission of information.

Used as a kind of technical optimization scheme of the present utility model, the shift register group 5 is a kind of built-in six high speeds The shift register group 5 of silicon door cmos device, and shift register group 5 is bi-directionally connected single-chip microcomputer 10, realizes the side inspection of cable Survey.

Used as a kind of technical optimization scheme of the present utility model, the relay group 11 is a kind of relay of DPDT formula Device group 11, realizes switching.

As a kind of technical optimization scheme of the present utility model, the alarm unit 94 for it is a kind of using LED charactrons and The alarm unit 94 of buzzer composition, realizes sound and light alarm.

When in use, this kind of cable fault detector, records strange at the automatic identification of host computer 9 during connection to the utility model Cable, stores in database 93；Controlled to send pulse signal in pulse signal generator 3 by single-chip microcomputer 10, running into high resistant Breaking, short-circuit or destination terminal when will be reflected, received by pulsed signal device 8, simultaneously put chip 13 to good use and record Time, single-chip microcomputer 10 can accurately show the position of abnormal cable by calculating, by when side break-make is carried out, by multi-core cable One end short-circuited conducting sleeve connection makes the short at one end of cable, and by operation button 92, the output high level of control single chip computer 10 makes displacement Register group 5 is connected with relay group 11, and relay group 11 is chosen into survey on off operating mode, connects relay group 11 and by survey line Cable 1, you can the break-make of detection core, is shown by LCD display 91, removes short-circuited conducting sleeve, and relay group 11 is transformed into measuring resistance State, adds 500V voltages, and its resistance can be calculated by single-chip microcomputer 10, is shown by LCD display 91.

Wherein, the single-chip microcomputer 10 uses AT89S52, has reset circuit, crystal oscillating circuit and pin to constitute, and is capable of achieving data Calculate and change, the clock chip 13 using DS1302 structure it can to year, month, day, Sunday, when, minute, second counts When, time record is accurate.

It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation Involved claim.

Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined May be appreciated other embodiment.

Claims

1. a kind of cable fault detector, including tested cable（1）, insulaion resistance electric circuit inspection module（4）, on off test circuit Module（6）, host computer（9）And single-chip microcomputer（10）, it is characterised in that：The tested cable（1）By universal contact（2）Connect respectively Connect pulse signal generator（3）, relay group（11）With pulsed signal device（8）, and pulse signal generator（3）And pulse Signal receiver（8）Single-chip microcomputer is connected respectively（10）；The single-chip microcomputer（10）By shift register group（5）Connection relay group （11）, and relay group（11）Connection resistance（12）；The single-chip microcomputer（10）With insulaion resistance electric circuit inspection module（4）Between lead to Cross A D converters（7）Connection, and single-chip microcomputer（10）Connection host computer（9）, on off test circuit module（6）And clock chip （13）；The host computer（9）Including LCD display（91）, operation button（92）, database（93）And alarm unit（94）.

2. a kind of cable fault detector according to claim 1, it is characterised in that：The single-chip microcomputer（10）By CAN Bus connects host computer（9）.

3. a kind of cable fault detector according to claim 1, it is characterised in that：The shift register group（5）For A kind of shift register group of built-in six high-speed silicons door cmos device（5）, and shift register group（5）It is bi-directionally connected single-chip microcomputer （10）.

4. a kind of cable fault detector according to claim 1, it is characterised in that：The relay group（11）It is one kind The relay group of DPDT formula（11）.

5. a kind of cable fault detector according to claim 1, it is characterised in that：The alarm unit（94）It is one kind The alarm unit constituted using LED charactrons and buzzer（94）.