CN204694801U - Portable polycore cable fault locator - Google Patents
Portable polycore cable fault locator Download PDFInfo
- Publication number
- CN204694801U CN204694801U CN201520301975.8U CN201520301975U CN204694801U CN 204694801 U CN204694801 U CN 204694801U CN 201520301975 U CN201520301975 U CN 201520301975U CN 204694801 U CN204694801 U CN 204694801U
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- China
- Prior art keywords
- road
- counter
- road counter
- polycore cable
- input
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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 belongs to polycore cable troubleshooting apparatus technical field, and particularly the portable polycore cable fault locator of one, comprises shell, operating switch, pilot lamp, cable socket and testing circuit.Testing circuit comprises output A end, input B end, A road counter, B road counter, monostalbe trigger, oscillator, comparer, trigger, hummer and AND OR NOT gate integrated package; Wherein, export A end to be made up of A path analoging switch, code translator and output A road counter; Input B end is made up of B path analoging switch, code translator and input B road counter; Comparer is connected with A road counter, B road counter.The beneficial effect of the utility model portable polycore cable fault locator: can be accurate to disposable detections of fault such as the broken string of polycore cable, misconnection or interconnection, it is convenient to portably use, the low easy popularization of equipment cost, effectively reduces the working strength of polycore cable trouble hunting.
Description
Technical field:
The utility model belongs to polycore cable troubleshooting apparatus technical field, particularly the portable polycore cable fault locator of one.
Technical background:
Existing polycore cable fault detection approach many employings multimeter, need two people to coordinate during detection, control test is carried out in pointwise, bothersome effort and cannot detect misconnection and interconnection line situation.
Have part to design for the specialized equipment of polycore cable fault detect work at present, but generally need the device supports such as appliance computer, volume, weight cause more greatly portably using inconvenience, and equipment cost is high, have more application limitation.
Summary of the invention:
The utility model portable polycore cable fault locator goal of the invention: the polycore cable failure detector providing a kind of light, low cost, simplifies polycore cable fault detect work.
Portable polycore cable fault locator, comprises shell, operating switch, pilot lamp, cable socket and testing circuit.Testing circuit comprises output A end, input B end, A road counter, B road counter, monostalbe trigger, oscillator, comparer, trigger, hummer and AND OR NOT gate integrated package; Wherein, export A end to be made up of A path analoging switch, code translator and output A road counter; Input B end is made up of B path analoging switch, code translator and input B road counter; Comparer is connected with A road counter, B road counter.
Preferably, export A road counter, input B road counter, A road counter and B road counter and be binary bit five decade counter.
Testing circuit also comprises the display of A road and the display of B road; Wherein, the display of A road is made up of A road code translator and charactron, is connected with A road counter; The display of B road is made up of B road code translator and charactron, is connected with B road counter.
During measurement, cable two ends plug is inserted respectively the bull end of A path analoging switch and B path analoging switch, the a certain road conducting of counter and code translator control A path analoging switch is passed through in the pulse that oscillator produces, then it exports as high level, the a certain input end of B path analoging switch is added to by cable, make each road conducting of B path analoging switch successively, and whether compare two ends Counter Value by comparer device identical.When while receive high level, comparer exports simultaneously also be high level, then illustrate and create misconnection or interconnection, now pin oscillator, the counter signals of display two ends appearance.
The detection of trigger for breaking, when a certain road conducting of A path analoging switch, each road conducting successively of B path analoging switch, if all paths of B path analoging switch have all been scanned, the output terminal of B path analoging switch receives high level not yet, then a certain conductor cord disconnection in cable is described, now produces and report to the police and display counter value.Trigger resets when inputting B road counter one cycle period.Trigger manually can be reset to carry out follow up scan when there is break alarm.
Preferably, exporting A road counter with input B road counter is 74LS393.
Preferably, A road counter and B road counter are 74LS390.
The beneficial effect of the utility model portable polycore cable fault locator: can be accurate to disposable detections of fault such as the broken string of polycore cable, misconnection or interconnection, it is convenient to portably use, the low easy popularization of equipment cost, effectively reduces the working strength of polycore cable trouble hunting.
Accompanying drawing illustrates:
Fig. 1 is the utility model specific embodiment syndeton schematic diagram;
Fig. 2 is that the utility model specific embodiment profile arranges schematic diagram;
In figure.
Embodiment:
Portable polycore cable fault locator, comprises shell 1, operating switch 2, pilot lamp 3, cable socket 4 and testing circuit; Testing circuit comprises output A end, input B end, A road counter 5, B road counter 6, monostalbe trigger 7, oscillator 8, comparer 9, trigger 10, hummer 11, AND OR NOT gate integrated package, the display of A road and the display of B road; Wherein, export A end to be made up of A path analoging switch 101, code translator 102 and output A road counter 103; Input B end is made up of B path analoging switch 104, code translator 105 and input B road counter 106; Comparer 9 is connected with A road counter 5, B road counter 6; The display of A road is made up of A road display decoder 201 and charactron 202, is connected with A road counter 5; The display of B road is made up of B road display decoder 203 and charactron 204, is connected with B road counter 6.
Wherein, exporting A road counter 103 with input B road counter 106 is 74LS393 type binary bit five decade counter; A road counter 5 and B road counter 6 are 74LS390 type binary bit five decade counter; Monostalbe trigger 7 is 74LS123; Oscillator 8 is NE555; A path analoging switch 101, B path analoging switch 104 are CD4051; A road code translator 102, B road code translator 105 are 74LS138; A road display decoder 201, B road display decoder 203 are 74LS48; Comparer 9 is 74LS688; Trigger 10 is 74LS74.
During measurement, cable two ends plug is inserted respectively the bull end of A path analoging switch 101 and B path analoging switch 104, the a certain road conducting of counter and code translator control A path analoging switch 101 is passed through in the pulse that oscillator 8 produces, then it exports as high level, the a certain input end of B path analoging switch 104 is added to by cable, make each road conducting of B path analoging switch 104 successively, and whether compare two ends Counter Value by comparer 9 identical.When while receive high level, comparer 9 exports simultaneously is also high level, then illustrate and create misconnection or interconnection, now pin oscillator 8, the counter signals that display two ends occur.
The detection of trigger 10 for breaking, when a certain road conducting of A path analoging switch 101, each road conducting successively of B path analoging switch 104, if all paths of B path analoging switch 104 have all been scanned, the output terminal of B path analoging switch 104 receives high level not yet, then a certain conductor cord disconnection in cable is described, now produces and report to the police and display counter value.Trigger 10 resets when inputting B road counter 106 51.Trigger is manually reset to carry out follow up scan by panel-switch 2 when there is break alarm.
Claims (5)
1. portable polycore cable fault locator, comprise shell, operating switch, pilot lamp, cable socket and testing circuit, it is characterized in that: testing circuit comprises output A end, input B end, A road counter, B road counter, monostalbe trigger, oscillator, comparer, trigger, hummer and AND OR NOT gate integrated package;
Wherein, export A end to be made up of A path analoging switch, code translator and output A road counter; Input B end is made up of B path analoging switch, code translator and input B road counter;
Comparer is connected with A road counter, B road counter.
2. portable polycore cable fault locator as claimed in claim 1, is characterized in that: described output A road counter, input B road counter, A road counter and B road counter are binary bit five decade counter.
3. portable polycore cable fault locator as claimed in claim 2, is characterized in that: described output A road counter is 74LS393 with input B road counter.
4. portable polycore cable fault locator as claimed in claim 2, is characterized in that: described A road counter and B road counter are 74LS390.
5. portable polycore cable fault locator as claimed in claim 1, is characterized in that: described testing circuit also comprises the display of A road and the display of B road; Wherein, the display of A road is made up of A road code translator and charactron, is connected with A road counter; The display of B road is made up of B road code translator and charactron, is connected with B road counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520301975.8U CN204694801U (en) | 2015-05-12 | 2015-05-12 | Portable polycore cable fault locator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520301975.8U CN204694801U (en) | 2015-05-12 | 2015-05-12 | Portable polycore cable fault locator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204694801U true CN204694801U (en) | 2015-10-07 |
Family
ID=54235077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520301975.8U Expired - Fee Related CN204694801U (en) | 2015-05-12 | 2015-05-12 | Portable polycore cable fault locator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204694801U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106872849A (en) * | 2017-02-24 | 2017-06-20 | 今创科技有限公司 | The device interior IO method of samplings, device and system |
| CN108107285A (en) * | 2016-11-24 | 2018-06-01 | 中航贵州飞机有限责任公司 | A kind of Portable aircraft electrical malfunction somascope |
| CN113156338A (en) * | 2021-03-25 | 2021-07-23 | 山西中航天拓科技股份有限公司 | Line production control method for automatic detection of multi-core cable with plug |
-
2015
- 2015-05-12 CN CN201520301975.8U patent/CN204694801U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107285A (en) * | 2016-11-24 | 2018-06-01 | 中航贵州飞机有限责任公司 | A kind of Portable aircraft electrical malfunction somascope |
| CN106872849A (en) * | 2017-02-24 | 2017-06-20 | 今创科技有限公司 | The device interior IO method of samplings, device and system |
| CN106872849B (en) * | 2017-02-24 | 2019-12-31 | 今创科技有限公司 | Equipment internal IO sampling method, device and system |
| CN113156338A (en) * | 2021-03-25 | 2021-07-23 | 山西中航天拓科技股份有限公司 | Line production control method for automatic detection of multi-core cable with plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |