CN101750565B

CN101750565B - Cable proofreading tester

Info

Publication number: CN101750565B
Application number: CN2008102311349A
Authority: CN
Inventors: 杨继红; 王亚辉; 葛宪奎; 陈玉胜; 胥鸣; 秦文韬
Original assignee: Puyang Power Supply Co of Henan Electric Power Co Ltd
Current assignee: Puyang Power Supply Co of Henan Electric Power Co Ltd
Priority date: 2008-11-28
Filing date: 2008-11-28
Publication date: 2011-08-17
Anticipated expiration: 2028-11-28
Also published as: CN101750565A

Abstract

The invention discloses a cable proofreading tester. The tester comprises a main tester and a remote tester, wherein the main tester comprises a first clock circuit, a function display circuit and a second clock circuit. The invention adopts common electronic devices, the cost is cheap, the tester is easy to realize, the operation is easy and convenient to popularize; and the number of workers is reduced and even only one worker can finish the cable-proofreading task, thus disengaging the dependence on the interphones, increasing the efficiency, improving the accuracy of cable-proofreading and reducing the error probability caused by mismating.

Description

The cable proofreader tester

Technical field

The invention belongs to power test equipment, relate in particular to a kind of cable proofreader tester that adopts electron scanning.

Background technology

For many years, secondary construction cable proofreader and test job all want two people to carry out, and in line process, need ceaselessly get in touch with intercom.Because secondary cable is many, every cable core is many, cause the line workload greatly, in the work the bad core that insulate also is difficult for discovery, and have the carelessness also can be to wrong line slightly, the light work efficiency that influences prolongs the duration, for umbilical cable, also can influence safety in production when serious.

Summary of the invention

The purpose of this invention is to provide a kind of cable proofreader tester that adopts electron scanning, with solve cable proofreader work personnel selection many, easily make mistakes, efficient is low, have problems such as security risk.

For achieving the above object, the present invention adopts following technical scheme: a kind of cable proofreader tester, form by main tester and remote testing device, main tester comprises first clock circuit and function display circuit, the function display circuit is formed by thirty system counter cascade at least, the output terminal of first clock circuit links to each other with the input end of function display circuit, an output terminal of function display circuit links to each other with the input end of second clock circuit, the output terminal of second clock circuit links to each other with first lead-out terminal by first primary LED, on first primary LED, be parallel with first a major loop diode opposite polarity with it, at least two ten four output terminals of all the other of function display circuit respectively link to each other with a lead-out terminal by a primary LED, all lead-out terminals are numbered in regular turn, and have more than respectively being parallel with a major loop diode opposite polarity with it on half the primary LED of all the other output terminals sum; The remote testing device comprises and the same number of input terminal of main tester lead-out terminal, all input terminals are also numbered in regular turn, each input terminal links to each other with the positive pole of a test lead light emitting diode, the negative pole of all test lead light emitting diodes links to each other, respectively be parallel with a test lead opposite polarity loop diode on some test lead light emitting diodes with it, the number of test lead loop diode is identical with major loop number of diodes on the main tester, when being connected with the major loop diode on the lead-out terminal, also be connected with test lead loop diode on the input terminal identical with its numbering.

The function display circuit is formed by the cascade of thirty system counter, remove the output terminal that links to each other with the second clock circuit, 24 lead-out terminal number consecutivelies that output terminal connected of all the other of function display circuit are the second to the 25, respectively be parallel with a major loop diode opposite polarity on second primary LED to the, 14 primary LED with it, and each test lead loop diode in parallel on the second test lead light emitting diode to the, the 14 test lead light emitting diodes on the remote testing device.

The function display circuit is formed by four decade counter cascades, remove the output terminal that links to each other with the second clock circuit, 12 lead-out terminal number consecutivelies that output terminal connected of its excess-three of function display circuit are the second to the 33, respectively be parallel with a major loop diode opposite polarity on second primary LED to the, 18 primary LED with it, and each test lead loop diode in parallel on the second test lead light emitting diode to the, the 18 test lead light emitting diodes on the remote testing device.

Beneficial effect of the present invention is: adopt electron device commonly used, and with low cost, be convenient to realize that operation is simple, be convenient to popularization; The number of minimizing work, even can finish by a people lineman is done, broken away from dependence to intercom, improved efficient, improved accuracy to line, reduced the error probability that causes because of mismate.

Description of drawings

Fig. 1 is the circuit theory diagrams of one embodiment of the present of invention.

Fig. 2 is the circuit theory diagrams of another embodiment of the present invention.

Embodiment

Embodiment 1: a kind of cable proofreader tester, form by main tester and remote testing device, main tester comprises first clock circuit and function display circuit, the function display circuit is formed by the cascade of thirty system counter, the output terminal of first clock circuit links to each other with the input end of function display circuit, an output terminal of function display circuit links to each other with the input end of second clock circuit, the output terminal of second clock circuit links to each other with first lead-out terminal by first primary LED, on first primary LED, be parallel with first a major loop diode opposite polarity with it, 24 output terminals of all the other of function display circuit respectively link to each other with a lead-out terminal by a primary LED, remove the output terminal that links to each other with the second clock circuit, 24 lead-out terminal number consecutivelies that output terminal connected of all the other of function display circuit are the second to the 25, the primary LED that links to each other with this lead-out terminal also gives identical numbering, and has that half promptly respectively is parallel with a major loop diode opposite polarity with it on the second to the 14 primary LED more than all the other output terminal sums; The remote testing device comprises 25 input terminals, each input terminal links to each other with the positive pole of a test lead light emitting diode, the negative pole of all test lead light emitting diodes links to each other, and respectively is parallel with test lead opposite polarity with it loop diode on the first to the 14 test lead light emitting diode

As shown in Figure 1, first clock circuit is by time base circuit IC1, resistance R 1, R2 and capacitor C 1 are formed by connecting, time base circuit IC1 adopts NE555, the function display circuit comprises thirty system counter IC3, IC4, IC5, thirty system counter IC3, IC4, IC5 all adopts MC14017B, thirty system counter IC3, IC4, IC5 is by two AND circuit IC6, IC7 cascades up, AND circuit IC6, IC7 adopts 74LS08, the second clock circuit is by time base circuit IC2, resistance R 3, R4 and capacitor C 2 are formed by connecting, the frequency oscillator signal that IC1 produces outputs to the CLOCK end of IC3 from its 3rd pin, hold 4th pin of output signal from the Q0 of IC3 to IC2, the first primary LED A1 links to each other with the 3rd pin of IC2, the second primary LED A2 to the, 25 primary LED A25 successively with thirty system counter IC3, IC4, the output pin of IC5 links to each other, D1～D14 is the major loop diode, K1～K25 is a lead-out terminal, B1～B25 is the test lead light emitting diode, E1～E14 is a test lead loop diode, and W1～W25 is an input terminal.

Principle of work of the present invention is as follows: with 25 core cables is example, K1～K25 on the main tester is connected by the W1～W25 on cable and the remote testing device, system power-up, IC1 is under the cooperation of peripheral components R1, R2, C1, at its 3 pin output concussion rectangle square wave.The CLOCK end of IC3,2 pin of IC6 and 9 pin of IC7 are delivered in this pulse respectively, and the high level of the Q0 of IC3 output is at this moment delivered to 4 pin of IC2, makes IC2 work, produces oscillator signal, are outputed on the A1 by 3 pin of IC2, make the A1 flicker; The Q0 of IC3 delivers to the REST end of IC4 on the one hand, and IC4 is resetted, and the Q0 of IC4 also exports high level resets IC5.Have only the Q0 output high level of IC3 like this, Q1～Q9 of IC3, IC4, IC5 is a low level.At this moment oscillator signal can be seen and have only A1, B1 flicker from 3 pin → A1 → K1 → cable connection 1 → W1 → B1 → E2 → W2 → cable connection 2 → K2 → D2 → Q1 of IC2, and all the other light emitting diodes all do not work.When the rising edge of next pulse arrives, the Q1 output high level of IC3, current signal is from Q1 → A2 → K2 → cable connection 2 → W2 → B2 → E3 → W3 → cable connection 3 → K3 → D3 → Q2 of IC3, form the closed-loop path, this is to see A2, B2 Chang Liang, and the output on the Q2～Q8 on the IC3 all can be lighted the light emitting diode that is attached thereto respectively by that analogy.When another rising edge of a pulse arrives, the Q9 of IC3 output high level, the CE that outputs to itself on the one hand holds, and makes the output of IC3 keep current state always, promptly has only Q9 output high level, Q0～Q8 output low level.Therefore 1 pin of IC6 is high level, and this AND circuit is opened, and the scanning pulse signal that 2 pin are imported is outputed to the CLOCK end of IC4, makes IC4 begin counting output.Therefore when next pulse arrives, the Q1 of IC4 just exports high level, drive with A10, B10, with the similar light emitting diode that is connected of lighting one by one of the driving of IC3, when the Q9 of IC4 output high level, signal outputs to the CE end of IC4 on the one hand, the output state of IC4 is remained unchanged, on the one hand open IC7, make the scanning pulse signal IC5 that comes in and goes out, make IC5 begin counting output.Q1～Q8 of IC5 drives the light emitting diode that is connected respectively as mentioned above, when Q9 resets IC3, IC4, IC5 during for high level, thereby enters the scanning of next round.

The above is at line K1 connection W1, the situation of K2 connection W2......K25 connection W25, and the order that lamp is lighted on the at this moment main tester is that A1 is to A25, the order that lamp is lighted on the remote testing device is that B1 is to B25, very regular, and have only A1, B1 to glimmer, all the other are Chang Liang.But in use, owing to do not know the corresponding situation of core, so line is at random, such as K1 connection W8, K2 connection W25 etc., the order that the light emitting diode on the at this moment main tester is lighted remains A1 to A25, very regular, but the light emitting diode on the remote testing device is exactly to have lighted at random, as K1 connection W8, and K2 connection W25 etc., when main tester A1 glimmers, corresponding remote testing device B8 flicker, then A2 lights, and the B25 lamp is lighted on the corresponding remote testing device.During the scanning of main tester, light emitting diode light order always from A1, order is progressively increased, when scanning A1, this LED flash is with this beginning of reminding the user to scan.When scanning other light emitting diode, corresponding light emitting diode Chang Liang.And in remote testing device one side, when the user finds to have the diode flicker, mean that a new wheel scan begins, what glimmer is single line, the requirement user begins to write down the order that light emitting diode is lighted, and terminal head is enclosed within on the core by this order successively by the order the same with main tester get final product.

At the remote testing end, when having two light emitting diodes to light simultaneously, illustrate that the insulation of core is bad, this core can not be used; As light emitting diode do not work, illustrated that the broken string core exists.

When not enough 25 cores of cable, such as having only 10 cores, on the then main tester only with K1 to K10 totally 10 lead-out terminals clamp 10 cores of cable, and, also must make electric current can form the loop with W1 to these 10 input terminals of W10 in the other end of cable, and the test process of test process and 25 core cables is basic identical, have only A1 luminous successively on the promptly main tester, and, have only the B1 that links to each other with cable core to B10 light emitting diode random light emission in the other end of cable to A10.Require us to write down the luminous immediately order of B1 to B10, come to carry out correspondingly to A10 with A1, heart yearn can be to going out.

Embodiment 2: in the present embodiment, the structure of cable proofreader tester is substantially the same manner as Example 1, as shown in Figure 2, different is, a decade counter IC8 and an AND circuit IC9 have been increased, like this, the function display circuit is just formed by four decade counter cascades, remove the output terminal that links to each other with the second clock circuit, 12 lead-out terminal number consecutivelies that output terminal connected of its excess-three of function display circuit are the second to the 33, respectively be parallel with a major loop diode opposite polarity on second primary LED to the, 18 primary LED with it, and each test lead loop diode in parallel on the second test lead light emitting diode to the, the 18 test lead light emitting diodes on the remote testing device.And its principle of work is identical with embodiment 1.

In sum, every increase a slice counter can increase by 8 lead-out terminals, thereby can make the cable core number of checking increase by 8 cores.

Claims

1. cable proofreader tester, it is characterized in that: form by main tester and remote testing device, main tester comprises first clock circuit and function display circuit, the function display circuit is formed by thirty system counter cascade at least, the output terminal of first clock circuit links to each other with the input end of function display circuit, an output terminal of function display circuit links to each other with the input end of second clock circuit, the output terminal of second clock circuit links to each other with first lead-out terminal by first primary LED, on first primary LED, be parallel with first a major loop diode opposite polarity with it, at least two ten four output terminals of all the other of function display circuit respectively link to each other with a lead-out terminal by a primary LED, all lead-out terminals are numbered in regular turn, and have more than respectively being parallel with a major loop diode opposite polarity with it on half the primary LED of all the other output terminals sum; The remote testing device comprises and the same number of input terminal of main tester lead-out terminal, all input terminals are also numbered in regular turn, each input terminal links to each other with the positive pole of a test lead light emitting diode, the negative pole of all test lead light emitting diodes links to each other, respectively be parallel with a test lead opposite polarity loop diode on some test lead light emitting diodes with it, the number of test lead loop diode is identical with major loop number of diodes on the main tester, when being connected with the major loop diode on the lead-out terminal, also be connected with test lead loop diode on the input terminal identical with its numbering.

2. cable proofreader tester as claimed in claim 1, it is characterized in that: the function display circuit is formed by the cascade of thirty system counter, remove the output terminal that links to each other with the second clock circuit, 24 lead-out terminal number consecutivelies that output terminal connected of all the other of function display circuit are the second to the 25, respectively be parallel with a major loop diode opposite polarity on second primary LED to the, 14 primary LED with it, and each test lead loop diode in parallel on the second test lead light emitting diode to the, the 14 test lead light emitting diodes on the remote testing device.

3. cable proofreader tester as claimed in claim 1, it is characterized in that: the function display circuit is formed by four decade counter cascades, remove the output terminal that links to each other with the second clock circuit, 12 lead-out terminal number consecutivelies that output terminal connected of its excess-three of function display circuit are the second to the 33, respectively be parallel with a major loop diode opposite polarity on second primary LED to the, 18 primary LED with it, and each test lead loop diode in parallel on the second test lead light emitting diode to the, the 18 test lead light emitting diodes on the remote testing device.