CN207007972U - A kind of multi-core cable tester - Google Patents
A kind of multi-core cable tester Download PDFInfo
- Publication number
- CN207007972U CN207007972U CN201621293539.1U CN201621293539U CN207007972U CN 207007972 U CN207007972 U CN 207007972U CN 201621293539 U CN201621293539 U CN 201621293539U CN 207007972 U CN207007972 U CN 207007972U
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- China
- Prior art keywords
- circuit
- measured
- test circuit
- chip microcomputer
- cable
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- Expired - Fee Related
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model provides a kind of multi-core cable tester, including cable to be measured, single-chip microcomputer and test circuit, switching power circuit, buzzer and display circuit, the first end to be measured and the second end to be measured of cable to be measured are connected with test circuit respectively；Single-chip microcomputer is connected with the display circuit, buzzer and test circuit respectively, and test circuit is connected with cable to be measured, and the single-chip microcomputer is used for the sounding for controlling the buzzer, and the switching power circuit is powered to buzzer, display circuit and the test circuit；Single-chip microcomputer model ATMEGA32, the test circuit are 16 path analoging switch chips；The display circuit is reversion transparent latch and corresponding LED light.Using technical scheme provided by the utility model, the automatic measurement of multi-core cable break-make is realized, ensures the accuracy of test result, improves operating efficiency, cable can detected in each quasi-instrument and control device extensively and used.
Description
Technical field
Testing lines technical field is the utility model is related to, more particularly to a kind of multi-core cable tester.
Background technology
In each quasi-instrument and control device, communication cable and controlling cable are widely used.Whether cable turns on well,
Whether insulated between line and directly influence the normal operation of equipment.The qualified basic demand of multi-core cable is：The pin one of two-port
One corresponding welding is intact.Normal produced problem has cored wire open circuit, short circuits between conductors and Core misalignment weldering in using and producing
Connect.At present, the line inspection is typically carried out manually, and workload is big, and efficiency is low.Therefore, multi-core cable tester is developed, it is right
Line inspection accuracy and efficiency is improved just to be particularly important.
Utility model content
In view of this, the utility model is directed to a kind of multi-core cable tester, to carry out one-to-one cable survey
Examination, the automatic measurement of multi-core cable break-make can be realized, ensure the accuracy of test result, and then improve operating efficiency.
To achieve the above object, technical solution of the present utility model is：A kind of multi-core cable tester, including it is to be measured
Cable, single-chip microcomputer and test circuit, switching power circuit, buzzer and display circuit, the first end to be measured of the cable to be measured
It is connected respectively with the test circuit with the second end to be measured；
The single-chip microcomputer is connected with the display circuit, the buzzer and the test circuit respectively, the test electricity
Road is connected with the cable to be measured, and the single-chip microcomputer is used for the sounding for controlling the buzzer, and the switching power circuit is to institute
State buzzer, the display circuit and test circuit power supply；
The single-chip microcomputer model ATMEGA32, the test circuit are 16 path analoging switch chips；
The display circuit is reversion transparent latch and corresponding LED light.
Optionally, the test circuit includes one or more 16 path analoging switch chips.
Optionally, the model AD7506 of the 16 path analoging switch chip.
Optionally, the tester also includes first and the charactron of charactron second, and the charactron uses common cathode type
Charactron.
Optionally, the Switching Power Supply is adopted as model LM2675M-5.0 switching power source chip.
Multi-core cable tester of the present utility model, including cable to be measured, single-chip microcomputer and test circuit, switch power supply
Road, buzzer and display circuit, the first end to be measured and the second end to be measured of the cable to be measured respectively with the test circuit phase
Even；The single-chip microcomputer is connected with the display circuit, the buzzer and the test circuit respectively, the test circuit and institute
State cable to be measured to be connected, the single-chip microcomputer is used for the sounding for controlling the buzzer, and the switching power circuit gives the buzzing
Device, the display circuit and test circuit power supply；The single-chip microcomputer model ATMEGA32, the test circuit are 16 tunnels
Analog switch chip；The display circuit is reversion transparent latch and corresponding LED light.By by the two of single line cable
Terminate into tester, the result of measurement can be directly obtained, and the mode of the result progress buzzing alarm of measurement is fed back.This reality
The automatic measurement of multi-core cable break-make is realized with New Energy, ensures the accuracy of test result, improves operating efficiency, can be extensive
Cable is detected in each quasi-instrument and control device to use.
Brief description of the drawings
Form a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form to improper restriction of the present utility model.
In accompanying drawing.
Fig. 1 is the structural representation of multi-core cable tester.
Fig. 2 is the circuit diagram of display circuit.
Fig. 3 is the circuit diagram of buzzer.
Fig. 4 is the circuit diagram of test circuit.
Fig. 5 is switching power circuit.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The present embodiment is related to a kind of multi-core cable tester, as shown in figure 1, the structure of Fig. 1 positions multi-core cable tester is shown
It is intended to, cable to be measured, single-chip microcomputer and test circuit, switching power circuit, buzzer and display circuit, cable to be measured can be included
The first end to be measured and the second end to be measured be connected respectively with test circuit；Single-chip microcomputer respectively with display circuit, buzzer and test
Circuit is connected, and test circuit is connected with cable to be measured, and single-chip microcomputer is used for the sounding for controlling buzzer, and switching power circuit is to buzzing
Device, display circuit and test circuit power supply；Single-chip microcomputer model ATMEGA32, test circuit are 16 path analoging switch chips；It is aobvious
Show circuit for reversion transparent latch and corresponding LED light.
Further, test circuit includes one or more 16 path analoging switch chips.
Further, the model AD7506 of 16 path analoging switch chips.
Further, in addition to first and the charactron of charactron second, charactron use common cathode type charactron.
Further, Switching Power Supply is adopted as model LM2675M-5.0 switching power source chip.
Referring to Fig. 3, Fig. 3 is the circuit diagram of buzzer.Single-chip microcomputer can measure cable in the shape disconnected in test circuit
Buzzing alarm is carried out during state.
Referring to Fig. 2, Fig. 2 is the circuit diagram of display circuit.
So that the input of cable is data0-data7 as an example, the other end difference the street 5V voltages of cable, each circuit difference
Test circuit is accessed, the output of test circuit is PC0-PC7, is joined directly together with the PC0-PC7 of single-chip microcomputer pin, and pin is as schemed
Shown in 2.When a certain service interruption, the level on the pin is low level, exemplary, data5 service interruptions, is exported to be low
Level, corresponding PC5 are also low level, and so as to cause the OUT5 of AD7506 in Fig. 2 outputs to be low level, indicator lamp 5 is low
To go out in the state of level, so can determine that corresponding circuit breaks down from indicator lamp.
When once needing to input multiple cables, multiple AD7506 can be used, corresponding circuit is attached, tool
The expanded circuit of body is prior art, the embodiment of the present invention again this it is not repeated.
Fig. 4 is the circuit diagram of test circuit.
Fig. 5 is switching power circuit.
As shown in figure 5, Switching Power Supply 4 is used by manufacturer as National Semiconductor, model LM2675M-
5.0 switching power source chip and its peripheral circuit, manufacturer are National Semiconductor, model LM1117-3.3
Linear power supply chip and its peripheral circuit form.LM2675M-5.0 switching power source chips produce after 24V supply voltages are depressured
5V voltages, 5V voltage step-downs are then produced into 3.3V voltages supply governor circuit 2 with LM1117-3.3 linear power supplies chip again,
LM2675M-5.0 switching power source chips have current limit and the function of Thermal protection.It is if directly linear using LM1117-3.3
24V supply voltages are directly dropped to 3.3V voltages by power supply chip, then LM1117-3.3 linear power supplies chip can hot and voltage not
Steadily.The LM2675M-5.0 switching power source chips used in the utility model not only can be excessively depressured, and be generated by it
5V voltages can also power to peripheral circuit.Due to the noise very little very little on simulation ground, but noise digitally is very big, if
Directly by simulation, digitally it is connected together and can be mutually concerned with, causes circuit operation irregularity.Therefore the utility model use will simulate ground
Digitally it is separately arranged, and after eventually passing through filter capacitor, by simulating and is digitally linked together by 0 Ω resistance.
To be powered to single-chip microcomputer, display circuit, buzzer and display circuit.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (6)
- A kind of 1. multi-core cable tester, it is characterised in that：Including cable to be measured, single-chip microcomputer and test circuit, switch power supply Road, buzzer and display circuit, the first end to be measured and the second end to be measured of the cable to be measured respectively with the test circuit phase Even；The single-chip microcomputer is connected with the display circuit, the buzzer and the test circuit respectively, the test circuit and institute State cable to be measured to be connected, the single-chip microcomputer is used for the sounding for controlling the buzzer, and the switching power circuit gives the buzzing Device, the display circuit and test circuit power supply；The test circuit is 16 path analoging switch chips；The display circuit is reversion transparent latch and corresponding LED light.
- A kind of 2. multi-core cable tester according to claim 1, it is characterised in that：The test circuit include one or Multiple 16 path analoging switch chips.
- A kind of 3. multi-core cable tester according to claim 2, it is characterised in that：The 16 path analoging switch chip Model AD7506.
- 4. a kind of multi-core cable tester according to claim 1, it is characterised in that also including first and charactron second Charactron, the charactron use common cathode type charactron.
- A kind of 5. multi-core cable tester as described in claim any one of 1-4, it is characterised in that：The Switching Power Supply adopt for Model LM2675M-5.0 switching power source chip.
- A kind of 6. multi-core cable tester according to claim 1, it is characterised in that the model of the single-chip microcomputer ATMEGA32。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621293539.1U CN207007972U (en) | 2016-11-29 | 2016-11-29 | A kind of multi-core cable tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621293539.1U CN207007972U (en) | 2016-11-29 | 2016-11-29 | A kind of multi-core cable tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207007972U true CN207007972U (en) | 2018-02-13 |
Family
ID=61427746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621293539.1U Expired - Fee Related CN207007972U (en) | 2016-11-29 | 2016-11-29 | A kind of multi-core cable tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207007972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406931A (en) * | 2018-11-01 | 2019-03-01 | 上海开通数控有限公司 | Servo drive system cable detecting device |
-
2016
- 2016-11-29 CN CN201621293539.1U patent/CN207007972U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406931A (en) * | 2018-11-01 | 2019-03-01 | 上海开通数控有限公司 | Servo drive system cable detecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20181129 |