CN103760457B - A kind of cable method of calibration without common wire - Google Patents
A kind of cable method of calibration without common wire Download PDFInfo
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- CN103760457B CN103760457B CN201410038469.4A CN201410038469A CN103760457B CN 103760457 B CN103760457 B CN 103760457B CN 201410038469 A CN201410038469 A CN 201410038469A CN 103760457 B CN103760457 B CN 103760457B
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Abstract
A kind of cable method of calibration without common wire, the circuit crossing over checking signal transmitting terminal and checking signal receiving terminal only needs the tested cable itself without common reference end, each road tested cable checking circuit include current-limiting resistance and start tested cable, isolating diode and the signal coupler of checking signal receiving terminal being sequentially connected with from checking signal sending ending equipment interface；The negative electrode of described isolating diode is connected with the anode of signal coupler input, the negative electrode of signal coupler input is connected with the anode of described isolating diode, and the described isolating diode cathode terminal of the tested cable run in each road or the anode tap of signal coupler input are connected by wire.Transmitting terminal sends the distinct signal investing this cable to successively each tested cable, and receiving terminal shows the numbering of this cable after receiving signal, the present invention makes cable verify at a distance without common wire, can one man operation, cable verifies quick and precisely.
Description
Technical field
The present invention relates to multicore cable long distance leave school line technology, a kind of without common wire
Cable method of calibration.
Background technology
In power and lighting or intelligence system wiring installation, multicore cable can be used in a large number as respectively
Kind of field controlling instrument, signal transmission medium between equipment and Central Control Room control system, executing
During work wiring, need cable is insulated, conduction property test, it is especially desirable to confirm each
Whether two ends are corresponding, to ensure the various signal of instrument, power supply for cable marker corresponding to root heart yearn
Cable correctly connect, be called school line procedures.
Traditional school line method be need two that be skilled in technique and to drawing clearly, join
Close the technical staff of tacit agreement, use transmitter receiver and circuit tester, utilize shielding line etc. at cable two ends
Common wire, by the heart yearn of short-circuiting cable one end one by one, finds at the other end with circuit tester
Corresponding heart yearn the method measuring break-make, linked up by interphone communication, take multiple measurements short
Connect, opening operation confirms and labelling wire size.
But find in real work, owing to the skills involved in the labour of personnel are different, noisy
In environment use transmitter receiver carry out, in voice communication process, causing mistake or error unavoidably, with
After power on debugging in find instrument cisco unity malfunction, even cause instrument due to false wiring
Burn observations happens occasionally, and searches wiring error and correction can waste again a large amount of man-hour, Jin Erying
Ring being smoothed out of whole project progress.
Summary of the invention
The technical problem to be solved is to solve the problems referred to above, improves tradition school line method
Caused various disadvantages, it is provided that a kind of cable checking circuit structure and the cable school without common wire
Proved recipe method, it is achieved without common wire, only one man operation, obtain school line result rapidly and accurately,
Improve school line work efficiency and accuracy, reduce the requirement to on-the-spot test personnel.
Described cable checking circuit structure, is sent including the checking signal connected by tested cable
End circuitry and checking signal receiving device circuit, described tested cable is including at least having 2
The tested cable in road；
The circuit crossing over checking signal transmitting terminal and checking signal receiving terminal only needs without common reference end
Tested cable itself, each road tested cable checking circuit includes current-limiting resistance and from verification
Signal sending end equipment interface starts tested cable, isolating diode and the verification being sequentially connected with
The signal coupler of signal receiving end；The negative electrode of described isolating diode inputs with signal coupler
The anode of end connects, and the negative electrode of signal coupler input connects with the anode of described isolating diode
Connecing, described current-limiting resistance is serially connected in any position in above-mentioned circuit front end or circuit and each road
Current-limiting resistance link position consistent, the described isolating diode of the tested cable run in each road is cloudy
Extreme or signal coupler input anode tap is connected by a wire.
Further, the outfan of described signal coupler is connected to receive signal processing or instruction
Device, exports the verification letter that the checking signal transmitting terminal of this signal coupler place circuit is exported
Number.
A kind of embodiment is, described signal coupler be input be the optocoupler of light emitting diode.
A kind of embodiment is that each described tested cable is at described checking signal transmitting terminal warp
Overdrive circuit is connected to checking signal generator module.
A kind of cable verification side without common wire utilizing above-mentioned cable checking circuit structure to realize
Method, is characterized in that:
The checking signal sending ending equipment with described cable verification structure and checking signal is used to receive
At least 2 tested cables of tested cable are appointed respectively by end equipment in one end of tested cable
Meaning is connected to the output port of described checking signal sending ending equipment, at the other end by this tested electricity
The input being the most arbitrarily connected to described checking signal receiving device by survey line that cable is to be numbered
Mouthful, make each connected tested cable take the most alone a connectivity port, and without
Common wire and common wire port are set；
Each output port is set different numberings by described checking signal transmitting terminal, to each
Individual output port sends the checking signal of correspondence successively, and remaining port is set to high level, described school
Test signal sequence to be followed successively by: low level first dielectric signal, synchronization end signal, port coding
Signal, high level waiting signal；
Each input port is set different numberings by described checking signal receiving terminal, receives
Port after initial signal receives data signal, receives and stores after terminating or show input slogan
Coding corresponding with the other side's port received；
The corresponding identification labelling that mark is detected on the tested cable surveyed.
A kind of embodiment, wherein first dielectric signal accounts for 2～10 clock cycle, believes with EOS
Number accounting for 1 clock cycle, port coding signal accounts for 3～8 clock cycle, port coding signal
Corresponding 3～8 codings.
Typically, described port coding signal accounts for 5 clock cycle, corresponding 5 codings and
The tested cable of many 32 cores.
As prioritization scheme, during detection, described checking signal transmitting terminal ceaselessly circulates
Sending checking signal to each port, described checking signal receiving terminal often finishes receiving a port
Checking signal i.e. rewrites the other side's checking signal correspondence coding received by a corresponding ports, with
Timely respond to the wiring change of the other side's port.
As prioritization scheme, the numbering of the input port setting of described checking signal receiving terminal and institute
The number order of the output port setting stating checking signal transmitting terminal is contrary.
As prioritization scheme, described checking signal receiving terminal be provided with cleaning and/or locking recorded or
The button of the encoded digital information of display.
The present invention compared with prior art, has the advantage that
1, school line accuracy 100%；
2, can one man operation, it is to avoid the two traditional people cooperations at the school line of cable two ends intercommunication
Problem, eliminates communication tool；
3, tested one and controlled cable (being set to 21 cores), use the time to survey than break-make resistance
Examination minimizing 90%；
4, any bridging line (including earth lead) is not utilized, it is possible to easily cable is carried out
School line；
6, need not professional electrician also can complete paired cable school lineman make.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present invention,
Fig. 2 is a kind of checking signal oscillogram,
Fig. 3 is transmitting terminal circuit structure block diagram,
Fig. 4 is receiving terminal circuit structured flowchart.
In figure: 1 checking signal drive end, 2 current-limiting resistances, 3 tested cables, 4 every
From diode, 5 signal coupler inputs, 6 signal couplers, 7 tested cables,
8 drive circuits, 9 checking signal generator modules.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings: as shown in fig. 1, institute
State cable checking circuit structure, set including the checking signal transmitting terminal connected by tested cable 3
Standby circuit and checking signal receiving device circuit, described tested cable 3 is including at least there being 2 tunnels
Tested cable 7.
With signal coupler be optocoupler as embodiment, cross over checking signal transmitting terminal and checking signal
The circuit of receiving terminal only needs the tested cable 7 without common reference end itself, the tested electricity in each road
Cable checking circuit includes current-limiting resistance 2 and starts to connect successively from checking signal sending ending equipment interface
The signal coupler 6 of the tested cable 7, isolating diode 4 and the checking signal receiving terminal that connect；
The negative electrode of described isolating diode 4 and the signal coupler input 5 i.e. anode of optocoupler luminous tube
Connect, the negative electrode of the signal coupler input 5 i.e. negative electrode of optocoupler luminous tube and described isolation two
The anode of pole pipe 4 connects, and described current-limiting resistance 2 is serially connected in above-mentioned circuit front end or circuit
The current-limiting resistance link position on any position and each road is consistent, and the current-limiting resistance 2 in Fig. 1 sets
Before the tested cable of checking signal transmitting terminal.The tested cable run in each road described every
Anode tap from diode 4 cathode terminal or optocoupler luminous tube is connected by a wire.
The outfan of described signal coupler 6 is connected to receive signal processing or instruction device, defeated
Go out the checking signal that the checking signal transmitting terminal of this optocoupler place circuit is exported.Described in each
Tested cable 7 is connected to checking signal at described checking signal transmitting terminal through overdrive circuit 8
Generator module 9.
All DOL Data Output Lines are connected together as all light by isolating diode by transmitting terminal
The LED anode of coupling, this isolating diode serves low and high level electric current difference path simultaneously
Selection.Such as when transmitting terminal sends high level time, the present embodiment first passes through current limliting
Resistance followed by diode arrives all optocoupler LED anode, if transmitting terminal output in a certain road is low
Level, then electric current can from isolating diode negative electrode flow out and by with described isolating diode 4
The wire that cathode terminal is all connected flows into, and pours into low level drive end after the LED of optocoupler.
By such compound use, offsetting a public ground wire in road, the most any route can be public
Conllinear.Remain during use that only one tunnel is for including that low level signal exports, due to each
The output encoding setting on road is different, and sending ending equipment circulation exports each road coding so that receive
End circulation one by one receives the check code on each road, such that it is able to it is corresponding to identify every single line
Transmitting terminal numbering.
A kind of cable verification side without common wire utilizing above-mentioned cable checking circuit structure to realize
Method is: use the described checking signal sending ending equipment with described cable checking circuit structure and institute
State checking signal receiving device, in one end of tested cable by least 2 quilts of tested cable
Survey cable and be the most arbitrarily connected to the output port of described checking signal sending ending equipment, separately
The described checking signal that is the most arbitrarily connected to by survey line to be numbered for this tested cable is received by one end
The input port of end equipment, makes each connected tested cable take the most alone a company
Connect port, and without arranging common wire and common wire port.
Each output port is set different numberings by described checking signal transmitting terminal, to each
Individual output port sends the checking signal of correspondence successively, and remaining port is set to high level, described school
Test signal sequence to be followed successively by: low level first dielectric signal, synchronization end signal, port coding
Signal, high level waiting signal；A kind of embodiment, when wherein first dielectric signal accounts for 2～10
In the clock cycle, synchronizing end signal and account for 1 clock cycle, port coding signal accounts for 3～8 clocks
Cycle, corresponding 3～8 codings of port coding signal.Typically, described port coding signal accounts for 5
Individual clock cycle, corresponding 5 codings and the tested cable of most 32 cores.
Each input port is set different numberings by described checking signal receiving terminal, receives
After initial signal, this port receives data signal, receives and stores after terminating or show input port
Number corresponding with the other side's port that this port receives coding；The tested cable surveyed marks
The corresponding identification labelling detected.
Further, in order to realize one man operation, transmitting terminal needs transmitting terminal to connect cable
Wire size tells receiving terminal.Therefore transmitting terminal needs the wire size of sender to be encoded and accurately send
Go out.If tested cable has 32 lines, transmitting terminal is sent out from the 32 of transmitting terminal connection jaws successively
Sending 32 data: such as binding post 0 sends data 0, binding post 1 sends data 1,
Binding post 2 sends data 2, the most by that analogy until binding post 31 sends data 31,
Then this process is repeated.But the simplest data receiver that sends is cannot Exact Solutions
Analysis, it is necessary to before sending each data, ensure data syn-chronization, this example sends one greatly
The low level synchronous head of time is sent, as in figure 2 it is shown, send data in 2 haplotype datas
Synchronous head and the substantially waveform of data.Having had synchronous head, receiving terminal just can first detect this
Synchronous head, just receives data below after detecting.
During detection, described checking signal transmitting terminal ceaselessly circulates and sends school to each port
Testing signal, the checking signal that described checking signal receiving terminal often finishes receiving a port is i.e. rewritten
The other side's checking signal correspondence coding received by corresponding ports, to timely respond to square end
The wiring change of mouth.
Described checking signal receiving terminal is provided with cleaning and/or locking the coded data recording or showing
The button of information.
As a example by the tested cable of 32 cores, each binding post of tester is labelled with this end
The wire size of son, in terms of front, the receiving terminal sequence number of transmitting terminal and receiving terminal cable is anti-(sending out
Sending end from left to right sequence number 0-31 successively；Receiving terminal from left to right sequence number 31-0), this is for side
Just during measurement of near distance cable will not intersect disorderly around.Because binding post is quick crimp type terminal,
The connecting line of many band wire clamps, the tested cable of convenient connection can be connected according to tested cable core number.
See Fig. 3,4,32 cable test instrument of the present invention, be made up of 2 parts, a part is
Transmitting terminal, a part is receiving terminal.Receiving terminal and transmitting terminal binding post can be according to tested cables
Core number crimps many connecting lines on terminal, utilizes connecting line wire clamp to connect successively with transmitting terminal terminal
Connect, then transmitting terminal switch is opened.Again by tested wire other end with connecting line successively with
Receiving terminal terminal is connected, and then opens receiving terminal switch.At this moment will reveal whether on display to connect
The connected cable of receiving end be connected cable with transmitting terminal corresponding to terminal number, finally can be by tested wire
The wire size thereto that shows according to display or put number marking tube.
Each embodiment of above-mentioned application can intersect use, the application knot required for obtaining
Really.
Claims (6)
1. without a cable method of calibration for common wire, it is characterized in that: utilize following cable school
Test structure:
This cable verification structure includes that the checking signal transmitting terminal connected by tested cable (3) is set
Standby circuit and checking signal receiving device circuit, described tested cable (3) is including at least having 2
The tested cable in road (7)；
The circuit crossing over checking signal transmitting terminal and checking signal receiving terminal only needs without common reference end
Tested cable (7) itself, each road tested cable checking circuit includes current-limiting resistance (2)
With tested cable (7), the isolation starting to be sequentially connected with from checking signal sending ending equipment interface
The signal coupler (6) of diode (4) and checking signal receiving terminal；Described isolating diode (4)
Negative electrode be connected with the anode of signal coupler input (5), signal coupler input (5)
Negative electrode be connected with the anode of described isolating diode (4), described current-limiting resistance (2) concatenate
The limit of any position and each road tested cable checking circuit in above-mentioned circuit front end or circuit
Leakage resistance link position is consistent, the described isolating diode (4) of each road tested cable checking circuit
The anode tap of cathode terminal or signal coupler input is connected by a wire；
The outfan of described signal coupler (6) is connected to receive signal processing or instruction device,
Export the checking signal that the checking signal transmitting terminal of this signal coupler place circuit is exported；
Each described tested cable (7) at described checking signal transmitting terminal through overdrive circuit
(8) checking signal generator module (9) it is connected to；
The checking signal sending ending equipment with described cable verification structure and checking signal is used to receive
At least 2 tested cables are the most arbitrarily connected to institute in one end of tested cable by end equipment
State the output port of checking signal sending ending equipment, at the other end, this tested cable is appointed respectively
Meaning is connected to the input port of described checking signal receiving device, makes each connected quilt
Survey cable and take the most alone a connectivity port, and without arranging common wire and common wire port；
Each output port is set different numberings by described checking signal transmitting terminal, to each
Individual output port sends the checking signal of correspondence successively, and remaining port is set to high level, described school
Test signal sequence to be followed successively by: low level first dielectric signal, synchronization end signal, port coding
Signal, high level waiting signal；
Each input port is set different numberings by described checking signal receiving terminal, receives
Input port after low level first dielectric signal receives data signal, receive after terminating storage or
Display input slogan coding corresponding with the other side's output port received；
The corresponding identification labelling that mark is detected on the tested cable surveyed.
Cable method of calibration without common wire the most according to claim 1, is characterized in that:
Wherein low level first dielectric signal accounts for 2～10 clock cycle, when synchronization end signal accounts for 1
In the clock cycle, port coding signal accounts for 3～8 clock cycle, corresponding 3～8 of port coding signal
Coding.
Cable method of calibration without common wire the most according to claim 2, is characterized in that:
Described port coding signal accounts for 5 clock cycle, and corresponding 5 codings are tested with most 32 cores
Cable.
Cable method of calibration without common wire the most according to claim 1, is characterized in that:
During detection, described checking signal transmitting terminal ceaselessly circulates and sends school to each output port
Testing signal, the checking signal that described checking signal receiving terminal often finishes receiving a port is i.e. rewritten
The other side's checking signal correspondence coding received by corresponding ports, to timely respond to square end
The wiring change of mouth.
Cable method of calibration without common wire the most according to claim 1, is characterized in that:
The numbering that the input port of described checking signal receiving terminal sets and described checking signal transmitting terminal
The number order that output port sets is contrary.
Cable method of calibration without common wire the most according to claim 1, is characterized in that:
Described checking signal receiving terminal is provided with cleaning and/or locking the encoded digital information recording or showing
Button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038469.4A CN103760457B (en) | 2014-01-27 | 2014-01-27 | A kind of cable method of calibration without common wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038469.4A CN103760457B (en) | 2014-01-27 | 2014-01-27 | A kind of cable method of calibration without common wire |
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| Publication Number | Publication Date |
|---|---|
| CN103760457A CN103760457A (en) | 2014-04-30 |
| CN103760457B true CN103760457B (en) | 2016-09-21 |
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| CN201410038469.4A Active CN103760457B (en) | 2014-01-27 | 2014-01-27 | A kind of cable method of calibration without common wire |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104330990B (en) * | 2014-10-16 | 2017-02-01 | 航天科工惯性技术有限公司 | Parity check cable model identification method and device thereof |
| CN105445605A (en) * | 2015-11-12 | 2016-03-30 | 国家电网公司 | Wire tester and wire test method thereof |
| CN109061367A (en) * | 2018-08-28 | 2018-12-21 | 国网新疆电力有限公司伊犁供电公司 | Fast pairing device for multicore cable |
| CN112014771A (en) * | 2020-09-04 | 2020-12-01 | 国网冀北电力有限公司检修分公司 | Cable calibration device and cable calibration control method and system thereof |
| CN113552508A (en) * | 2021-08-23 | 2021-10-26 | 沈阳铁路信号有限责任公司 | Separable cable multi-core cable checking device and method based on zigbee technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2359704Y (en) * | 1998-12-10 | 2000-01-19 | 边永盛 | No-screen double-twisted-line tester |
| CN2849738Y (en) * | 2005-11-07 | 2006-12-20 | 上海豪泊威通信技术有限公司 | Number quantity detecting circuitboard capable of warning connecting cable damage |
| CN101126789A (en) * | 2007-09-09 | 2008-02-20 | 山东信通电器有限公司 | Cable break alarm front end device |
| CN203673014U (en) * | 2014-01-27 | 2014-06-25 | 中铁建电气化局集团南方工程有限公司 | Cable check circuit structure |
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