CN104090205B - A kind of cable connection test circuit - Google Patents
A kind of cable connection test circuit Download PDFInfo
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- CN104090205B CN104090205B CN201410255043.4A CN201410255043A CN104090205B CN 104090205 B CN104090205 B CN 104090205B CN 201410255043 A CN201410255043 A CN 201410255043A CN 104090205 B CN104090205 B CN 104090205B
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Abstract
The invention discloses a kind of cable connection test circuit, including CPU module, communication module, multiplexer channel selecting module, input interface, output interface and power module, power module is connected with CPU module, communication module is connected with CPU module, multiplexer channel selecting module is connected with CPU module, keystroke interface, LCDs interface and buzzer are connected with CPU module, input interface is connected with multiplexer channel selecting module, and output interface is connected with multiplexer channel selecting module.This cable connection test circuit has various modes switching, can realize multiple functions in different modes.So that the convenient test of cable is quick.In addition, the present invention is outer to be equipped with 13 electric wires, the test of 13 cables can be carried out simultaneously.Needing to test the situation of a large amount of cables, can measure multi-cable simultaneously will save the substantial amounts of time so that test is more quick.
Description
Technical field
The present invention relates to a kind of test circuit, more particularly, to a kind of cable connection test circuit.
Background technology
Cable is photosignal delivery means, be primarily used to control installation, connection equipment, transmit electric power and signal transmission
Deng being article common in daily life.Because cable is mainly used in the transmission of signal, therefore to the physical characteristic and electricity of cable
Gas performance has certain requirement.The test to cable progress each side is needed in use, whether just to detect its performance
Often and meet requirement.
It is traditional more using manually and by the way of the progress test step by step of individual event tester.Manual test is to rely on technical staff just
True connecting terminal is simultaneously detected, it is possible to can produce certain human error.Manual test is more time-consuming, and places one's entire reliance upon
Measuring technology personnel are likely to occur missing inspection to the fine degree of this work.Individual event tester carries out test step by step, test
A piece cable needs multiple testers to test respectively it, uses not convenient and swift enough.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of cable that can conveniently test multi-cable and connected
Connect test circuit.
Technical scheme is used by the present invention solves above-mentioned technical problem：A kind of cable connection test circuit, including CPU
Module, communication module, multiplexer channel selecting module, input interface, output interface and power module, described power module with
CPU module connects, and described communication module is connected with CPU module, and described multiplexer channel selecting module is connected with CPU module,
Keystroke interface, LCDs interface and buzzer, described input interface and multiplexer channel are connected with described CPU module
Selecting module is connected, and described output interface is connected with multiplexer channel selecting module.
Described power module includes voltage stabilizing chip, the 4th electric capacity, the 5th electric capacity and the 3rd diode of model 1117,
The first pin ground connection of described voltage stabilizing chip, the first pin of voltage stabilizing chip are connected to plug, and the of described voltage stabilizing chip
Three-prong passes sequentially through second resistance, the first diode, the first inductance connection to plug, the second pin of voltage stabilizing chip and the 3rd
The positive terminal connection of diode, the negative pole end of the 3rd described diode and the three-prong of voltage stabilizing chip connect, and described is steady
4th pin of pressure chip is connected with the positive terminal of the 3rd diode, and the second pin of voltage stabilizing chip and one end of the 4th electric capacity connect
Connect, the other end ground connection of the 4th described electric capacity, one end of the 4th electric capacity is connected with VCC output ends, the second pipe of voltage stabilizing chip
Pin is connected with one end of the 5th electric capacity, and the other end ground connection of the 5th described electric capacity, one end and the VDD output ends of the 5th electric capacity connect
Connect, the first pin of described voltage stabilizing chip is connected with three-prong with power outlet.
Described CPU module includes the 4th resistance, model PIC18F4685 the first chip with model SIP1X5's
Second chip, the 6th pin ground connection of the first described chip, the 7th pin of the first chip pass through the 20th electric capacity in parallel
With the 21st capacitance connection to ground, the 28th pin of the first described chip is by the 22nd capacity earth, and first
The 29th pin ground connection of chip, the 5th pin of the 16th pin of the first described chip and the second described chip connect
Connecing, the 17th pin of the first chip is connected with the 4th pin of the second chip, the three-prong ground connection of the second described chip,
Second pin of the second chip is connected to VCC output ends, and the first pin of the second chip and the 18th pin of the first chip connect
Connect, described one end of the 4th resistance is connected with the first pin of the second chip, and the other end of the 4th resistance passes through the 6th electric capacity
Ground connection, the other end of the 4th resistance are connected to VCC output ends by 3rd resistor.
Described multiplexer channel selecting module includes two pieces of model 74HC138 fifth chip and the 6th chip, described
Fifth chip the 5th pin be connected with the 6th pin of the 6th chip after be connected with the 15th pin of the first chip, it is described
Fifth chip the 4th pin ground connection, the 6th pin of fifth chip by being grounded after the 23rd electric capacity, fifth chip
8th pin is grounded, and the 16th pin of fifth chip is connected to VCC output ends, the 4th pin, the 5th pin of the 6th chip
It is grounded with the 8th pin, the 16th pin of the 6th chip is connected to VCC output ends.
Described output interface includes 12 the first light emitting diodes and 12 the first triodes, the described first hair
Optical diode and the first triode correspond, and the positive terminal of the first described light emitting diode is all connected to VCC output ends, the
The negative pole end of one light emitting diode is connected to multiplexer channel selecting module, the transmitting of the first described triode by resistance respectively
Pole is all connected to ground, and the colelctor electrode of the first triode is connected to accessory power outlet by resistance respectively.
Described input interface includes 12 the second light emitting diodes and 12 the second triodes, the described second hair
Optical diode and the second triode correspond, and the positive terminal of the second described light emitting diode is all connected to+12V power supplys electricity
Pressure, the negative pole end of the second light emitting diode are connected to input socket, the emitter stage of the second described triode by resistance respectively
Ground is all connected to, the colelctor electrode of the second triode is connected to VCC output ends by resistance respectively.
Described LCDs interface includes model DIP10X2 the 7th chip, the 7th described chip and first
Chip connects, the first pin of the 7th described chip ground connection, the second pin of the 7th chip by the 7th electric capacity of parallel connection with
It is grounded after 8th electric capacity, the second pin of the 7th chip is connected to VCC output ends, and the 4th pin of the 7th chip passes through the 5th electricity
Resistance is connected to VCC output ends.
Described keystroke interface includes button socket, and described button socket is connected with the first chip, and button socket passes through
Resistance is connected to VCC output ends.
The second triode and the 19th resistance, the first described chip are connected between described buzzer and the first chip
The 42nd pin by being connected after the 19th resistance with the base stage of the second triode, the emitter stage of the second described triode
VCC output ends are connected to, the colelctor electrode of the second triode and the first pin of buzzer connect, and the second pin of buzzer connects
Ground.
Compared with prior art, the advantage of the invention is that this cable connection test circuit has various modes switching,
Multiple functions can be realized under different patterns.So that the convenient test of cable is quick.In addition, the present invention is outer to be equipped with 13 electricity
Line, the test of 13 cables can be carried out simultaneously.Needing to test the situation of a large amount of cables, multi-cable can be measured simultaneously
The substantial amounts of time will be saved so that test is more quick.
Brief description of the drawings
Fig. 1 is the block diagram of the present invention；
Fig. 2 is the circuit diagram of the CPU module of the present invention；
Fig. 3 is the circuit diagram of the power module of the present invention；
Fig. 4 is the circuit diagram of the multiplexer channel selecting module of the present invention；
Fig. 5 is the circuit diagram of the output module of the present invention；
Fig. 6 is the circuit diagram of the input module of the present invention；
Fig. 7 is the circuit diagram of the LCDs interface of the present invention；
Fig. 8 is the circuit diagram of the keystroke interface of the present invention；
Fig. 9 is the circuit diagram of the buzzer part of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Figures 1 to 9：A kind of cable connection test circuit, including the choosing of CPU module 1, communication module 2, multiplexer channel
Select module 3, input interface 5, output interface 4 and power module 6, power module 6 to be connected with CPU module 1, communication module 2 and CPU
Module 1 is connected, and multiplexer channel selecting module 3 is connected with CPU module 1, and keystroke interface 7, liquid crystal display are connected with CPU module 1
Shield interface 8 and buzzer 9, input interface 5 is connected with multiplexer channel selecting module 3, output interface 4 and multiplexer channel selecting module
3 connections.
Power module 6 includes voltage stabilizing chip U1, the 4th electric capacity C4, the 5th electric capacity C5 and the 3rd diode of model 1117
D3, voltage stabilizing chip U1 the first pin ground connection, voltage stabilizing chip U1 the first pin are connected to plug, voltage stabilizing chip U1 the 3rd pipe
Pin passes sequentially through second resistance, the first diode, the first inductance connection to plug, voltage stabilizing chip U1 the second pin and the three or two
Pole pipe D3 positive terminal connection, the 3rd diode D3 negative pole end are connected with voltage stabilizing chip U1 three-prong, voltage stabilizing chip U1
The 4th pin be connected with the 3rd diode D3 positive terminal, voltage stabilizing chip U1 the second pin and the 4th electric capacity C4 one end connect
Connect, the 4th electric capacity C4 other end ground connection, the 4th electric capacity C4 one end is connected with VCC output ends, voltage stabilizing chip U1 the second pipe
Pin is connected with the 5th electric capacity C5 one end, and the 5th electric capacity C5 other end ground connection, the 5th electric capacity C5 one end and VDD output ends connect
Connect, voltage stabilizing chip U1 the first pin is connected with three-prong with power outlet.
CPU module 1 include the 4th resistance R4, model PIC18F4685 the first chip U2 and model SIP1X5 the
Two chip P2, the first chip U2 the 6th pin ground connection, the first chip U2 the 7th pin pass through the 20th electric capacity C20 in parallel
Ground is connected to the 21st electric capacity C21, the first chip U2 the 28th pin is grounded by the 22nd electric capacity C22, the
One chip U2 the 29th pin ground connection, the first chip U2 the 16th pin are connected with the second chip P2 the 5th pin,
First chip U2 the 17th pin is connected with the second chip P2 the 4th pin, the second chip P2 three-prong ground connection, the
Two chip P2 the second pin is connected to the 18th pipe of VCC output ends, the second chip P2 the first pin and the first chip U2
Pin is connected, and the 4th resistance R4 one end is connected with the second chip P2 the first pin, and the 4th resistance R4 other end passes through the 6th
Electric capacity C6 is grounded, and the 4th resistance R4 other end is connected to VCC output ends by 3rd resistor.
Multiplexer channel selecting module 3 includes two pieces of model 74HC138 fifth chip U5 and the 6th chip U6, the 5th core
Piece U5 the 5th pin is connected after being connected with the 6th chip U6 the 6th pin with the first chip U2 the 15th pin, the 5th core
Piece U5 the 4th pin ground connection, fifth chip U5 the 6th pin by being grounded after the 23rd electric capacity C23, fifth chip U5's
8th pin is grounded, and fifth chip U5 the 16th pin is connected to VCC output ends, the 6th chip U6 the 4th pin, the 5th
Pin is grounded with the 8th pin, and the 6th chip U6 the 16th pin is connected to VCC output ends.
Output interface 4 includes 12 the first light emitting diodes and 12 the first triodes, the first light emitting diode with
First triode corresponds, and the positive terminal of the first light emitting diode is all connected to VCC output ends, and the first light emitting diode is born
Multiplexer channel selecting module 3 is extremely connected to by resistance respectively, the emitter stage of the first triode is all connected to ground, the one or three pole
The colelctor electrode of pipe is connected to accessory power outlet P5 by resistance respectively.
Input interface 5 includes 12 the second light emitting diodes and 12 the second triodes, the second light emitting diode with
Second triode corresponds, and the positive terminal of the second light emitting diode is all connected to+12V supply voltages, the second light emitting diode
Negative pole end input socket P6 is connected to by resistance respectively, the emitter stage of the second triode is all connected to ground, the second triode
Colelctor electrode VCC output ends are connected to by resistance respectively.
LCDs interface 8 includes model DIP10X2 the 7th chip CZ2, the 7th chip CZ2 and the first chip U2
Connection, the 7th chip CZ2 the first pin ground connection, the 7th chip CZ2 the second pin pass through the 7th electric capacity C7 of parallel connection and the
It is grounded after eight electric capacity C8, the 7th chip CZ2 the second pin is connected to VCC output ends, and the 7th chip CZ2 the 4th pin passes through
5th resistance is connected to VCC output ends.
Keystroke interface 7 is connected including button socket P7, button socket P7 with the first chip U2, and button socket P7 passes through resistance
It is connected to VCC output ends.
The second triode Q2 and the 19th resistance R19 is connected between buzzer and the first chip U2, the first chip U2's
42nd pin after the 19th resistance R19 with the second triode Q2 base stage by being connected, the second triode Q2 emitter stage
VCC output ends are connected to, the second triode Q2 colelctor electrode and the first pin of buzzer connect, buzzer P4 the second pin
Ground connection.
Claims (6)
1. a kind of cable connection test circuit, including it is CPU module, communication module, multiplexer channel selecting module, input interface, defeated
Outgoing interface and power module, described power module are connected with CPU module, and described communication module is connected with CPU module, described
Multiplexer channel selecting module be connected with CPU module, keystroke interface, LCDs interface are connected with described CPU module
With buzzer, described input interface is connected with multiplexer channel selecting module, described output interface and multiplexer channel selection mould
Block connects, it is characterised in that the voltage stabilizing chip of described power module including model 1117, the 4th electric capacity, the 5th electric capacity and the
Three diodes, the first pin ground connection of described voltage stabilizing chip, the first pin of voltage stabilizing chip are connected to plug, described voltage stabilizing
The three-prong of chip passes sequentially through second resistance, the first diode, the first inductance connection to plug, the second pipe of voltage stabilizing chip
Pin is connected with the positive terminal of the 3rd diode, and the negative pole end of the 3rd described diode and the three-prong of voltage stabilizing chip connect,
4th pin of described voltage stabilizing chip is connected with the positive terminal of the 3rd diode, the second pin and the 4th electric capacity of voltage stabilizing chip
One end connection, the other end ground connection of the 4th described electric capacity, one end of the 4th electric capacity is connected with VCC output ends, voltage stabilizing chip
The second pin be connected with one end of the 5th electric capacity, the other end of the 5th described electric capacity ground connection, one end of the 5th electric capacity and VDD
Output end is connected, and the first pin of described voltage stabilizing chip is connected with three-prong with power outlet, and described CPU module includes
The first chip and the second chip of model SIP1 × 5 of 4th resistance, model PIC18F4685, the first described chip
6th pin is grounded, and the 7th pin of the first chip passes through the 20th electric capacity and the 21st capacitance connection in parallel to ground, institute
28th pin of the first chip stated is grounded by the 22nd capacity earth, the 29th pin of the first chip, institute
16th pin of the first chip stated is connected with the 5th pin of the second described chip, the 17th pin of the first chip with
The 4th pin connection of second chip, the three-prong ground connection of the second described chip, the second pin of the second chip are connected to
VCC output ends, the first pin of the second chip are connected with the 18th pin of the first chip, one end of the 4th described resistance with
The first pin connection of second chip, the other end of the 4th resistance are passed through by the 6th capacity earth, the other end of the 4th resistance
3rd resistor is connected to VCC output ends, and described LCDs interface includes the 7th chip of model DIP10 × 2, described
The 7th chip be connected with the first chip, the first pin of the 7th described chip ground connection, the second pin of the 7th chip passes through
For the 7th electric capacity in parallel with being grounded after the 8th electric capacity, the second pin of the 7th chip is connected to VCC output ends, and the of the 7th chip
Four pins are connected to VCC output ends by the 5th resistance.
A kind of 2. cable connection test circuit according to claim 1, it is characterised in that described multiplexer channel selection mould
Block includes two pieces of model 74HC138 fifth chip and the 6th chip, the 5th pin of described fifth chip and the 6th core
It is connected after the 6th pin connection of piece with the 15th pin of the first chip, the 4th pin ground connection of described fifth chip, the
6th pin of five chips after the 23rd electric capacity by being grounded, the 8th pin ground connection of fifth chip, and the tenth of fifth chip the
Six pins are connected to VCC output ends, and the 4th pin, the 5th pin of the 6th chip are grounded with the 8th pin, the 6th chip
16th pin is connected to VCC output ends.
3. a kind of cable connection test circuit according to claim 1, it is characterised in that described output interface includes ten
Two the first light emitting diodes and 12 the first triodes, the first described light emitting diode and the first triode one a pair
Should, the positive terminal of the first described light emitting diode is all connected to VCC output ends, and the negative pole end of the first light emitting diode leads to respectively
Cross a resistance and be connected to multiplexer channel selecting module, the emitter stage of the first described triode is all connected to ground, the one or three pole
The colelctor electrode of pipe is connected to accessory power outlet by a resistance respectively.
4. a kind of cable connection test circuit according to claim 1, it is characterised in that described input interface includes ten
Two the second light emitting diodes and 12 the second triodes, the second described light emitting diode and the second triode one a pair
Should, the positive terminal of the second described light emitting diode is all connected to+12V supply voltages, the negative pole end point of the second light emitting diode
Input socket is not connected to by a resistance, the emitter stage of the second described triode is all connected to ground, the second triode
Colelctor electrode is connected to VCC output ends by a resistance respectively.
5. a kind of cable connection test circuit according to claim 1, it is characterised in that described keystroke interface includes pressing
Key socket, described button socket are connected with the first chip, and button socket is connected to VCC output ends by resistance.
A kind of 6. cable connection test circuit according to claim 1, it is characterised in that described buzzer and the first core
The second triode and the 19th resistance are connected between piece, the 42nd pin of the first described chip passes through the 19th resistance
The base stage with the second triode is connected afterwards, and the emitter stage of the second described triode is connected to VCC output ends, the second triode
First pin of colelctor electrode and buzzer connects, the second pin ground connection of buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410255043.4A CN104090205B (en) | 2014-06-10 | 2014-06-10 | A kind of cable connection test circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255043.4A CN104090205B (en) | 2014-06-10 | 2014-06-10 | A kind of cable connection test circuit |
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| CN104090205A CN104090205A (en) | 2014-10-08 |
| CN104090205B true CN104090205B (en) | 2018-01-16 |
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| CN201410255043.4A Active CN104090205B (en) | 2014-06-10 | 2014-06-10 | A kind of cable connection test circuit |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261738A (en) * | 2019-07-18 | 2019-09-20 | 广东电网有限责任公司 | A kind of substation cable core is to measuring instrument |
| CN110596520B (en) * | 2019-08-30 | 2024-05-03 | 上海西电高压开关有限公司 | Plug-in detector for detecting cable connecting control cabinet and combined electrical appliance |
| CN110672975B (en) * | 2019-10-15 | 2020-07-14 | 浙江中控太阳能技术有限公司 | Automatic detection method and device for heliostat power supply cable connection reliability |
| CN111398861B (en) * | 2020-03-24 | 2023-06-16 | 广西电网有限责任公司梧州供电局 | 2M cable fault detection circuit |
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|---|---|---|---|---|
| CN201373901Y (en) * | 2009-02-27 | 2009-12-30 | 天津市森特尔新技术有限公司 | Cable tester |
| CN101937038A (en) * | 2009-07-02 | 2011-01-05 | 中国第一汽车集团公司无锡油泵油嘴研究所 | Intelligent multi-core cable harness detection device |
| CN202916390U (en) * | 2012-10-08 | 2013-05-01 | 四川金信石信息技术有限公司 | High-precision wireless detector for cable partial discharge |
| US8717927B2 (en) * | 2012-03-15 | 2014-05-06 | Telefonaktiebolaget L M Ericsson (Publ) | Combining channel quality measurements based on sounding reference signals and demodulation reference signals |
| CN203981819U (en) * | 2014-06-10 | 2014-12-03 | 宁波长壁流体动力科技有限公司 | A kind of cable connecting test circuit |
-
2014
- 2014-06-10 CN CN201410255043.4A patent/CN104090205B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201373901Y (en) * | 2009-02-27 | 2009-12-30 | 天津市森特尔新技术有限公司 | Cable tester |
| CN101937038A (en) * | 2009-07-02 | 2011-01-05 | 中国第一汽车集团公司无锡油泵油嘴研究所 | Intelligent multi-core cable harness detection device |
| US8717927B2 (en) * | 2012-03-15 | 2014-05-06 | Telefonaktiebolaget L M Ericsson (Publ) | Combining channel quality measurements based on sounding reference signals and demodulation reference signals |
| CN202916390U (en) * | 2012-10-08 | 2013-05-01 | 四川金信石信息技术有限公司 | High-precision wireless detector for cable partial discharge |
| CN203981819U (en) * | 2014-06-10 | 2014-12-03 | 宁波长壁流体动力科技有限公司 | A kind of cable connecting test circuit |
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