CN2415367Y - Line diagnosis, inspection and connecting tester - Google Patents
Line diagnosis, inspection and connecting tester Download PDFInfo
- Publication number
- CN2415367Y CN2415367Y CN 00219802 CN00219802U CN2415367Y CN 2415367 Y CN2415367 Y CN 2415367Y CN 00219802 CN00219802 CN 00219802 CN 00219802 U CN00219802 U CN 00219802U CN 2415367 Y CN2415367 Y CN 2415367Y
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- line
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- inspection
- line inspection
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Abstract
The utility model relates to a computer control detecting instrument for line inspection, line alignment and line diagnosis. The computer control detecting instrument for line inspection, line alignment and line diagnosis is composed of a computer control unit, a parallel high-speed parallel input unit, an output interface unit, a serial input unit, an output large capacity interface unit, etc. and used for line inspection, line alignment and line diagnosis. The utility model is practical and effective detecting device and tool for detecting whether the line inspection, the line alignment and the line diagnosis are accurate or not.
Description
The utility model relates to a kind of wireline inspection instrument, especially to circuit diagnose, the line inspection, to the detector of line.
The engineering that is used for electric power, electronics, electric equipment manufacturing and electric power, electronics, communication construction to the cable of being laid, the lead that is connected, printed circuit board etc. need carry out the line inspection to circuit, to the inspection of line, wiring and wiring correctness.At present, people in the engineering of electric power, electronics, communication construction to the lead of the cable laid, connection, printed circuit board etc. do the line inspection, to line, and the wiring correctness check by manually carrying out, promptly by the root line carry out the line inspection, to line, cloth ray examination.Because circuit is various, the line inspection, dullness, repetition, factor such as loaded down with trivial details and cause the thing of multi-thread, few line, wrong line, cloth mistake to happen occasionally to ray examination, the line that locate errors or open circuit, short-circuit line time and effort consuming then, often get half the result with twice the effort.In addition, a large amount of electronics, electric elements are housed in electric power, electrical equipment, electronics, electromechanical equipment, control, operating system, instrument, the instrument, the joint thousands of strands and loose ends, the line inspection, that line is made us the heart is numerous, check also wrongly unavoidably repeatedly, prolong because of multi-thread, few line, wrong line cause debugging cycle.Sometimes single line can not transferred or performance index do not reach requirement in several days, and puzzle one's brains, even cause machine to ruin the bitter lesson that the people forgets, the related data record, the situation that domestic and international people really bring about great losses because of a line malunion when construction happens occasionally, and report is arranged repeatly.Such as the wiring of printed circuit board and circuit thereof, preferably also need a kind of instrument to solve to its quick and preliminary detection.
The purpose of this utility model is: provide a kind of practical and effective line inspection, to line, and the wiring correctness detecting instrument and instrument.
The purpose of this utility model is achieved in that a kind of line diagnosis, the line inspection, connecting tester, comprise power supply, chip microprocessor control circuit, circuit link address coding chip, the sequence signal of chip microprocessor control take place and signal acquisition circuit, sequence signal generation and signal acquisition circuit are for containing photoelectric isolating circuit, one end of the signal generation interface circuit input line inspection, the line inspection other end and line inspection end are provided with the signal circuit line.
Described power supply is an ac-dc dual power supply, also is provided with voice generation and audio frequency in addition and amplifies chip, loudspeaker, and chip microprocessor control voice generation chip can quoted by the wire size of the line inspection by the two ends of survey line with language by amplifier like this.Also be provided with keyboard input circuit, display output circuit, mini-printer, RS232 communication interface chip in addition, as external device easy to use.Print the annexation of measured point with mini-printer.Can also transmit data to PC with the RS232 communication interface chip.
Signal takes place and the signals collecting interface circuit has dual mode, and promptly parallel output interface chip forms high speed sequence signal generation circuit and parallel input interface chip composition high-speed signal acquisition circuit becomes the high speed test interface unit; Also can form high capacity sequence signal generation circuit and serial input interface chip by the serial output interface chip and form the high capacity signal acquisition circuit and become the detecting large volume interface unit, the many more test capacity of its serial connection chip are big more.
The input interface chip that walks abreast is formed between high-speed signal acquisition circuit and serial output interface chip composition high capacity signal acquisition circuit and computer control module and is isolated the back collection by photoelectric coupling, and each test interface of Acquisition Circuit all is connected in series pilot lamp do indication usefulness such as LED light emitting diode.Parallel output interface chip forms high speed sequence signal generation circuit and serial output interface chip composition high capacity sequence signal generation circuit all adopts power driving circuit to increase the load capacity of measuring point.
The voice of microprocessor control circuit take place and voice amplify between output by transformer B1 isolation.The power circuit of AC and DC dual-purpose provides working power by the DC/DC (direct current is to DC converting) that isolates to the computer control module, by linear stabilized power supply to interface unit working power is provided.With one group of power supply power supply, be convenient to the utility model is made portable.Adopt the photoelectricity isolated drive between the high capacity interface unit of computer control module and serial.
Characteristics of the present utility model are: with voice, acousto-optic report the institute wire size of looking into and associated wire size, it can print the on line of complexity connection table or be sent to PC in-depth processing with at random mini-printer at tested cable two ends for it.It improves the work efficiency to line, the line inspection more than 10 times, has increased the line inspection, end labour intensity is also fallen in the accuracy of line greatly.Also can judge the wiring correctness automatically.Avoid the various economic losses that cause because of multi-thread, few line, wrong line, broken string, short circuit, guaranteed project progress and quality simultaneously.And the mutual relationship that the computer operation circuit is diagnosed, line inspection connecting tester only once can be found a large amount of contacts with the time in several seconds.In time find multi-thread, few line, wrong line.Both guarantee the correctness of circuit, avoided the various economic losses that cause because of multi-thread, few line, wrong line again, guaranteed project progress and quality simultaneously.The utility model is applicable to electric system substation equipment maintenance and repair, accident maintenance, power construction unit, the line inspection, to the inspection of line, wiring and wiring correctness.Also be applicable to power equipment manufacturing plant produce switch cubicle, switch board and system wiring, to the inspection of line and wiring correctness.Also be applicable to wiring behind the signal, power, control cable laying of factory, mine, railway, postal and telecommunication entities, to the inspection of line and wiring correctness, more be applicable to the inspection of circuit such as building, resided in factory building, building by dress department power, illumination, communication and wiring.Join special-purpose anchor clamps, also can detect wiring, can find defectives such as the broken string of circuit board, abnormal on line and plated through-hole such as printed circuit board one class complicated circuit.
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment:
Fig. 1 is a block diagram of the present utility model;
Fig. 2 is microcomputer control circuit figure of the present utility model;
Fig. 3 is a high capacity interface schema of the present utility model;
Fig. 4 is high-speed interface figure of the present utility model;
Fig. 5 is the line inspection of the present utility model, to the line schematic diagram;
Fig. 6 is a line diagnosis schematic diagram of the present utility model.
In Fig. 1 block diagram: a kind of line diagnosis, the line inspection, connecting tester, the chip microprocessor control circuit sends sequence signal, behind circuit-under-test, obtain acquired signal by acquisition interface, the signals collecting interface circuit is for containing the photoelectricity isolated drive, is that to be provided with the signal circuit line be secondary machine end to the line inspection other end by survey line.Also be provided with sound circuit, mini-printer, power supply in addition.
The line inspection of the present utility model among Fig. 5, in the line schematic diagram, the line inspection, during to line, form by main frame (first end), secondary machine (second end), only have one to link to each other between secondary machine single line test interface and main frame with line, it utilizes by survey line forms direct current and audio loop, and secondary machine (second end) is made up of loudspeaker, external earphone, current-limiting resistance, isolation capacitance, LED light emitting diode.
The line inspection, the lineman is made the principle (see figure 5), the first end is by survey line and the main frame online other end (second end) that joins successively, with secondary machine to logical by the port point of survey line.At this moment, power supply+5V through photoelectric coupling circuit and the light emitting diode that is serially connected in port to the first port through by survey line to the second port, so far constitute a DC loop, be serially connected in the port two ends this moment, light emitting diode is lighted luminous, can be to the line person by this two ends diode indication, the current circuit of looking into of decidable, simultaneously, the signals collecting interface under the computer control collects the wire size of the current institute line inspection by photoelectric coupling circuit, and startup sound circuit, report produce through combination by the wire size voice of survey line, output to note amplifier through audio-frequency transformer (AFT), be coupled to secondary machine through electrolytic condenser.At this moment, the wire size of called line is all quoted at first, second two ends, and inductance L 1 blocking-up audio number constitutes the loop through battery.The glow current of general photoelectric coupling circuit, high brightness LED is more than 2mA, and present embodiment is set at 10mA, when voltage is 12V, and serial connection direct current resistance summation R
1=12V/10mA=12K.Get 1K and satisfy minimum working current R
2=12V/2mA=6K.R
2-R
1=6K-1K=5K be the resistance of circuit-under-test when 5K is following, can both judge wire size reliably.Detect from handbook, thereby general per hundred meters resistance of lead are the milliohm level to be extrapolated the theoretical detection length of present embodiment and reaches about 10 kilometers, this moment, the loudspeaker of secondary machine port added the audio frequency amplifying circuit in addition, if short circuit phenomenon is arranged by survey line, relevant photoelectric coupling circuit has electric current to flow through, at this moment, surveyed the relevant wire size of back report short circuit by computer--among the figure N velamen survey line is arranged.
Among the figure shown in Figure 2, microprocessor control circuit 89C51 control voice generation chip IC 2 1420 and audio frequency amplify between output isolates by transformer B1.The power circuit of AC and DC dual-purpose provides working power by the DC/DC (direct current is seen the lower left corner part of figure to DC converting) that isolates to the computer control module, by linear stabilized power supply to interface unit working power is provided.IC7 232 is a communication chip, and microprocessor control circuit 89C51 also sends chip (among Fig. 4) by the parallel sequence signal of coding chip control, adopts the photoelectricity isolated drive between the high capacity interface unit (Fig. 3) of computer control module and serial.
See Fig. 6, insert the measured point, sequence signal generator according to point, send " 1 " signal successively, through power amplifier, just become the very capable power driving circuit of current absorption, issue each test point, each driving circuit ABSORPTION CURRENT reaches 500mA, supposes that it is that 5mA can calculate each contact maximum detection so to connecting line: 500/5=100 root line that every road pours into electric current.
When tested end points is sent into " 0 " signal by sequence signal generator after, this moment, all relevant connection end point signal all can be passed through " VDD " and self current-limiting resistance, through self photoelectric coupling circuit and connect the analog line driver that LED flows into sequence signal generator, at this moment, microprocessor control circuit is all correlation signals of being found, come out or display shows the continuous relation of contact with printer prints at random, this moment, sequence signal generator signaled to the tested end points of the next one, by that analogy.
Fig. 3 forms the high capacity signal acquisition circuit and becomes the detecting large volume interface unit for is made of high capacity sequence signal generation circuit and serial input interface chip the serial output interface chip, and it is big more that it is connected in series the many more test capacity of chip.Serial output interface chip IC21, IC23 (74HC164) form high capacity sequence signal generation circuit, serial input interface chip IC30, IC31 (74HC165) form the high capacity signal acquisition circuit becomes the detecting large volume interface unit, isolating the back by photoelectric coupling IC26-29 between signal acquisition circuit and computer control module gathers, and each test interface of Acquisition Circuit all is connected in series pilot lamp do indication usefulness such as LED light emitting diode, and the many more test capacity of its serial connection chip are big more.TEST101-116 is the test side, and IC22-25 (2003) is a power driving circuit.
Signal shown in Figure 4 takes place and the signals collecting interface circuit is formed high speed sequence signal generation circuit and parallel input interface chip by parallel output interface chip and formed the high-speed signal acquisition circuit and become the high speed test interface unit; Parallel input interface chip IC10, IC11 (74HC373) form high speed sequence signal generation circuit and parallel output interface chip IC19, IC20 (74HC244) form the high-speed signal acquisition circuit, and the computer control module is isolated the back by photoelectric coupling IC15-18 and gathered.TEST101-116 is the test side, and IC22-25 (2003) is a power driving circuit.
Claims (8)
1. a line diagnosis, the line inspection, connecting tester, comprise power supply, chip microprocessor control circuit, circuit link address coding chip, the sequence signal of chip microprocessor control take place and signal acquisition circuit, sequence signal generation and signal acquisition circuit are for containing photoelectric isolating circuit, signal generation interface circuit is connected to by an end of the line inspection, by the line inspection other end be provided with the signal circuit line by line inspection end.
2. by the described line diagnosis of claim 1, the line inspection, connecting tester, it is characterized in that described signal takes place and the signals collecting interface circuit has dual mode, promptly parallel output interface chip forms high speed sequence signal generation circuit and parallel input interface chip composition high-speed signal acquisition circuit becomes the high speed test interface unit; Also can form high capacity sequence signal generation circuit and serial input interface chip by the serial output interface chip and form the high capacity signal acquisition circuit and become the detecting large volume interface unit, the many more test capacity of its serial connection chip are big more.
3. by the described line diagnosis of claim 1, the line inspection, connecting tester, it is characterized in that being provided with voice generation and audio frequency and amplify chip, loudspeaker, chip microprocessor control voice generation chip can quoted by the wire size of the line inspection by the two ends of survey line with language by amplifier like this.
4. by the described line diagnosis of claim 1, the line inspection, connecting tester, the input interface chip that it is characterized in that walking abreast is formed between high-speed signal acquisition circuit and serial output interface chip composition high capacity signal acquisition circuit and computer control module and is isolated the back collection by photoelectric coupling, and each test interface of Acquisition Circuit all is connected in series pilot lamp do indication usefulness such as LED light emitting diode.
5. by the described line diagnosis of claim 1, the line inspection, connecting tester, it is characterized in that parallel output interface chip is formed high speed sequence signal generation circuit and serial output interface chip composition high capacity sequence signal generation circuit all adopts power driving circuit to increase the load capacity of measuring point.
6. by the described line diagnosis of claim 1, the line inspection, connecting tester, the power circuit that it is characterized in that the AC and DC dual-purpose by the DC/DC (direct current is to DC converting) that isolates to the computer control module provide working power by linear stabilized power supply to interface unit provide working power, employing photoelectricity isolated drive between the high capacity interface unit of computer control module and serial.
7. by the described line diagnosis of claim 1, the line inspection, connecting tester, it is characterized in that voice take place to amplify between output by transformer B1 isolation with voice in the described computer control module.
8. by the described line diagnosis of claim 1, the line inspection, connecting tester, only it is characterized in that between test interface and main frame that route links to each other once, and formed direct current and audio loop by survey line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00219802 CN2415367Y (en) | 2000-03-30 | 2000-03-30 | Line diagnosis, inspection and connecting tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00219802 CN2415367Y (en) | 2000-03-30 | 2000-03-30 | Line diagnosis, inspection and connecting tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2415367Y true CN2415367Y (en) | 2001-01-17 |
Family
ID=33584948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00219802 Expired - Fee Related CN2415367Y (en) | 2000-03-30 | 2000-03-30 | Line diagnosis, inspection and connecting tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2415367Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539604B (en) * | 2009-04-20 | 2011-07-20 | 日立电梯（中国）有限公司 | Wiring detection system and wiring detection method |
| CN103063973A (en) * | 2012-12-24 | 2013-04-24 | 新乡职业技术学院 | Intelligent electricity wire signal-checking appliance |
| CN112394273A (en) * | 2019-08-12 | 2021-02-23 | 芯恩（青岛）集成电路有限公司 | Circuit inspection system and method |
-
2000
- 2000-03-30 CN CN 00219802 patent/CN2415367Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539604B (en) * | 2009-04-20 | 2011-07-20 | 日立电梯（中国）有限公司 | Wiring detection system and wiring detection method |
| CN103063973A (en) * | 2012-12-24 | 2013-04-24 | 新乡职业技术学院 | Intelligent electricity wire signal-checking appliance |
| CN112394273A (en) * | 2019-08-12 | 2021-02-23 | 芯恩（青岛）集成电路有限公司 | Circuit inspection system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |