CN107329039A - Cable pairing device based on ultrasonic signal processing and its to line method - Google Patents

Cable pairing device based on ultrasonic signal processing and its to line method Download PDF

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Publication number
CN107329039A
CN107329039A CN201710764778.3A CN201710764778A CN107329039A CN 107329039 A CN107329039 A CN 107329039A CN 201710764778 A CN201710764778 A CN 201710764778A CN 107329039 A CN107329039 A CN 107329039A
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China
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signal
cable
ultrasonic
ultrasonic transducer
line
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CN201710764778.3A
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CN107329039B (en
Inventor
张文
郑祥
胡武炎
徐鹏
乔龙洋
赵梦露
汤建伟
李智
孔玉梅
何涛
杨兵
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Super High Voltage Branch Of State Grid Anhui Electric Power Co ltd
State Grid Corp of China SGCC
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State Grid Corp of China SGCC
Maintenace Co of State Grid Anhui Electric Power Co Ltd
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Priority to CN201710764778.3A priority Critical patent/CN107329039B/en
Publication of CN107329039A publication Critical patent/CN107329039A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58Testing of lines, cables or conductors
    • G01R31/60Identification of wires in a multicore cable

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

The invention discloses a kind of cable pairing device based on ultrasonic signal processing, including to line signal generator, to line signal receiver;Described mainly to include Signal coding controller, at least one first ultrasonic transducer to line signal generator, the output end of Signal coding controller is connected by wire with the input of the first ultrasonic transducer;Described mainly to include signal solution code controller, at least one second ultrasonic transducer to line signal receiver, the output end of signal solution code controller is connected by wire with the input of the second ultrasonic transducer;The output end of first ultrasonic transducer is connected with tested cable head, and the output end of second ultrasonic transducer is connected with tested cable tail end.The cable pairing device is easy for operation, and tested cable also can determine that tested cable louding under charging operation state;The invention also discloses a kind of cable proofreader method based on ultrasonic signal processing, single channel cable or multiway cable signal can be carried out simultaneously to line.

Description

Cable pairing device based on ultrasonic signal processing and its to line method
Technical field
The present invention relates to power cable fields of measurement, more particularly to a kind of cable proofreader dress based on ultrasonic signal processing Put and its to line method.
Background technology
Cable is widely used in power Transmission and its Industry Control industry, and cable proofreader is electric power network high-efficiency high-quality applies Work and the important step of operation maintenance.Traditional cable line connector uses electric signal, by injecting electric signal in cable one end, Carried out in cable other end detection electric signal to line, i.e., every line is powered and carries out test determination by voltmeter, and needs will be by Survey cable out of service, it is impossible in the case where tested cable is in running status test line.
At present, in transformer station's exception handling procedure, because cable is in charging operation state, therefore can only manually it be looked into Look for.The cable loops such as signal, control are searched often to devote a tremendous amount of time and personnel's energy, delay faults processing time, shadow Ring equipment, power network to resume operation the time, more serious meeting causes fault spread.
Therefore a kind of offer new cable pairing device is provided badly and its line method is solved the above problems.
The content of the invention
The technical problems to be solved by the invention be to provide a kind of cable pairing device based on ultrasonic signal processing and its To line method, multichannel can be carried out under the tested powered running status of cable line is measured, improve power network to line operating efficiency.
In order to solve the above technical problems, first technical scheme that the present invention is used is:There is provided a kind of based on ultrasonic signal The cable pairing device of processing, including to line signal generator, to line signal receiver;
It is described that Signal coding controller, at least one first ultrasonic transducer, signal are mainly included to line signal generator The output end of coding controller is connected by wire with the input of the first ultrasonic transducer;
It is described that signal solution code controller, at least one second ultrasonic transducer, signal are mainly included to line signal receiver The output end of solution code controller is connected by wire with the input of the second ultrasonic transducer;
The output end of first ultrasonic transducer is connected with tested cable head, the output of second ultrasonic transducer End is connected with tested cable tail end.
In a preferred embodiment of the present invention, the Signal coding controller on the signal solution code controller with being all provided with Display control panel is equipped with, the display control panel includes touch-screen, operation button, facilitates operating personnel in Signal coding control Operated on device and signal solution code controller processed.
In a preferred embodiment of the present invention, first ultrasonic transducer, the output end of the second ultrasonic transducer with The insulating barrier contact connection of tested cable.Electric signal after coding is converted to ultrasonic signal by the first ultrasonic transducer, ultrasound Signal can pass through insulating barrier and be transmitted in metallic conductor;On the other hand, due to the material and structure of insulating barrier, ultrasonic signal is to exhausted The impingement rate of edge layer is very low, therefore outwards transmission causes the possibility for producing multigroup ultrasonic signal very low to adjacent cable.Second The ultrasonic signal of reception is converted to electric signal by ultrasonic transducer, then by wire feeding to the signal solution in line signal receiver Code controller carries out Decoding Analysis.
In order to solve the above technical problems, second technical scheme that the present invention is used is:There is provided and be based on described in a kind of be based on The cable pairing device of ultrasonic signal processing to line method, comprise the following steps:
Step 1:Opening signal coding controller, selects one to line signalling channel CHi on Signal coding controller, when It is when showing that CHi passages are in selected state, then etc. to be launched to line signal;
Step 2:One the first ultrasonic transducer is connected with tested cable head surface, manual operating signal coding-control Device starts to line signal, and the electric signal after coding is converted to ultrasonic signal by the first ultrasonic transducer, and starts starting of oscillation;
Step 3:Opening signal solution code controller, by second ultrasonic transducer and wherein one tested cable tail end table Face connect, see whether to receive and identify the ultrasonic signal sent on signal solution code controller, if can not if change An other tested cable, is investigated one by one, until can correctly show primary signal channel C Hi on signal solution code controller, is led to Cross the identification to signalling channel and compare completion cable proofreader.
In order to solve the above technical problems, the 3rd technical scheme that the present invention is also used is:There is provided a kind of based on the base In ultrasonic signal processing cable pairing device to line method, comprise the following steps:
Step 1:Opening signal coding controller, selected on Signal coding controller it is multiple to line signalling channel (CHi, CHi+1……CHi+k), when display is each to line signalling channel (CHi, CHi+1……CHi+k) when being in selected state, then wait Start to line signal;
Step 2:One the first ultrasonic transducer is connected with tested cable head surface, manual operating signal coding-control Device starts to line signal, and the electric signal after coding is converted to ultrasonic signal by the first ultrasonic transducer, and starts starting of oscillation;
Step 3:Opening signal solution code controller, by second ultrasonic transducer and wherein one tested cable tail end table Face connect, see whether to receive and identify the ultrasonic signal sent on signal solution code controller, if can not if change An other tested cable, is investigated one by one, until can correctly show each first ultrasonic transducer on signal solution code controller Corresponding primary signal passage (CHi, CHi+1……CHi+k), compared by the identification to signalling channel and complete cable proofreader.
In a preferred embodiment of the present invention, the first ultrasonic transducer by ultra wide band communication techniques in tested cable Ultrasonic signal is transmitted, ultrasonic signal is transmitted well through insulating barrier in metallic conductor, while being in tested cable Also ultrasonic signal can be preferably transmitted under charging operation state, makes cable direct current signal, industrial frequency AC signal and ultrasonic signal Transmission is irrelevant to disturb.
The beneficial effects of the invention are as follows:
(1) cable pairing device of the present invention is simple in construction, easy for operation, is tested cable in charging operation state Under can also be used, only need to add ultrasonic signal in tested cable side, you can any one in tested cable opposite side is put and connect Ultrasonic signal is received, and determines whether tested cable, cable louding is tested with this determination, power transformation station equipment is not interfered with not only Operation, but also drastically increase power network to line operating efficiency;
(2) the cable proofreader method passes through to the transducing of ultrasonic signal and electric signal, coding, decoding so that cable leads to Cross ultra wide band communication techniques and transmit ultrasonic signal well, single channel cable or multiway cable signal can be carried out simultaneously to line, is saved Shi Shengli, greatly improves power network to line operating efficiency.
Brief description of the drawings
Fig. 1 is the structured flowchart of the cable pairing device embodiment one of the present invention based on ultrasonic signal processing;
Fig. 2 is the flow chart of the cable proofreader embodiment of the method one based on ultrasonic signal processing;
Fig. 3 is the structured flowchart of the cable pairing device embodiment two based on ultrasonic signal processing;
Fig. 4 is the flow chart of the cable proofreader embodiment of the method two based on ultrasonic signal processing.
The mark of each part is as follows in accompanying drawing:1st, to line signal generator, 2, to line signal receiver, 3, Signal coding control Device processed, the 4, first ultrasonic transducer, 5, signal solution code controller, the 6, second ultrasonic transducer, 7, wire, 8, display control face Plate, 9, tested cable head, 10, tested cable tail end.
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Embodiment one:
Referring to Fig. 1, a kind of cable pairing device based on ultrasonic signal processing, including to line signal generator, to line Signal receiver.Tested cable includes cable core, the insulating barrier being wrapped in outside cable core, and cable core is metal material.
It is described that line signal generator is used to send to line signal, mainly the first surpass including Signal coding controller, one Sonic transducer, the output end of Signal coding controller is connected by wire with the input of the first ultrasonic transducer.It is described to line Signal receiver be used for receive it is described line signal generator is sent to line signal, mainly include signal solution code controller, one Individual second ultrasonic transducer, the output end of signal solution code controller is connected by wire with the input of the second ultrasonic transducer. The output end of first ultrasonic transducer contacts connection with the insulating barrier of tested cable head, second ultrasonic transducer Output end contacts connection with the insulating barrier of tested cable tail end.On the Signal coding controller and the signal solution code controller Display control panel is provided with, the display control panel includes touch-screen, operation button, facilitates operating personnel to be compiled in signal Operated on code controller and signal solution code controller.
In to line signal generator, Signal coding controller is encoded to sending to line signal, and the first ultrasound is changed Electric signal after coding is converted to ultrasonic signal by energy device, and cable core is metal material in tested cable, due to metal material Acoustic resistance it is smaller, ultrasonic signal can by ultra wide band (UWB) mechanics of communication well in metallic conductor transmit, while in quilt Survey cable be in charging operation state under also can preferably transmit ultrasonic signal, make cable direct current signal, industrial frequency AC signal with The transmission of ultrasonic signal is irrelevant to disturb;On the other hand, due to the material and structure of insulating barrier, incidence from ultrasonic signal to insulating barrier Rate is very low, and permeable insulating barrier is transmitted, therefore outwards transmission causes the possibility for producing multigroup ultrasonic signal to adjacent cable It is very low.The ultrasonic signal of reception is converted to electric signal by the second ultrasonic transducer, then line signal is received by wire feeding Signal solution code controller in device carries out Decoding Analysis.
The cable pairing device is simple in construction, easy for operation, and tested cable can also make under charging operation state With only ultrasonic signal need to be added in tested cable side, you can receive ultrasound in any one point of tested cable opposite side and believe Number, and determine whether tested cable, cable louding is tested with this determination, the operation of power transformation station equipment is not interfered with not only, But also power network is drastically increased to line operating efficiency.
With reference to Fig. 2, based on the cable pairing device based on ultrasonic signal processing to line method, including following step Suddenly:
Step 1:Opening signal coding controller, operating personnel are manual on the display control panel of Signal coding controller To line signalling channel for example to line signalling channel CHi needed for selection one, this pair of line signalling channel corresponds to a tested cable, when It is when showing that CHi passages are in selected state, then etc. to be launched to line signal;
Step 2:One the first ultrasonic transducer is contacted into connection, manual operating signal coding with tested cable head surface Controller starts to line signal, and the electric signal of Signal coding controller exports coding is converted to super on the first ultrasonic transducer Acoustical signal, and start starting of oscillation, contacted by the first ultrasonic transducer with tested cable head surface, the super of carrying channel signal The incoming cable of acoustical signal;
Step 3:After tested cable head enabling signal, waiting signal steadily starts to line, opening signal decoding control again Device processed, contacts connection, by the second surpassing by second ultrasonic transducer with wherein one tested cable tail end any place surface Sonic transducer contacts the ultrasonic signal that will be detected with tested cable tail end and is converted to original coding electric signal, then is sent by wire Enter in signal solution code controller, see whether to receive and identify the ultrasonic signal sent on signal solution code controller, such as Fruit can not then change an other tested cable, investigate one by one, until can correctly show original letter on signal solution code controller Number channel C Hi, passes through the identification to signalling channel and compares and complete cable proofreader.
The cable proofreader method passes through to the transducing of ultrasonic signal and electric signal, coding, decoding so that cable passes through super Broadband communications technology can transmit ultrasonic signal well, time saving and energy saving, greatly improve power network to line operating efficiency.
Embodiment two:
It is with the difference of embodiment one, referring to Fig. 3, described mainly include Signal coding control to line signal generator Device processed, at least two first ultrasonic transducers, each first ultrasonic transducer can connect with a tested cable head surface respectively Touch connection.
It is described that signal solution code controller, at least two second ultrasonic transducers are mainly included to line signal receiver, each Second ultrasonic transducer can contact connection with a tested cable tail end surface respectively.
Remaining content is identical with embodiment one, therefore repeats no more.
With reference to Fig. 4, based on the cable pairing device based on ultrasonic signal processing to line method, including following step Suddenly:
Step 1:Opening signal coding controller, operating personnel are manual on the display control panel of Signal coding controller Multiple desired signal passages are selected for example to line signalling channel CHi, CHi+1……CHi+k, it is each corresponding one to line signalling channel Tested cable, when display is each to line signalling channel CHi, CHi+1……CHi+kIt is when being in selected state, then etc. to be launched right Line signal;
Step 2:One the first ultrasonic transducer is contacted into connection, manual operating signal coding with tested cable head surface Controller starts to line signal, and the electric signal of Signal coding controller exports coding is converted to super on the first ultrasonic transducer Acoustical signal, and start starting of oscillation, contacted by the first ultrasonic transducer with tested cable head surface, the super of carrying channel signal The incoming cable of acoustical signal;
Step 3:After tested cable head enabling signal, waiting signal steadily starts to line, opening signal decoding control again Device processed, contacts connection, by the second surpassing by second ultrasonic transducer with wherein one tested cable tail end any place surface Sonic transducer contacts the ultrasonic signal that will be detected with tested cable tail end and is converted to original coding electric signal, then is sent by wire Enter in signal solution code controller, see whether to receive and identify the ultrasonic signal sent on signal solution code controller, such as Fruit can not then change an other tested cable, investigate one by one, until can correctly show each the on signal solution code controller Primary signal channel C Hi, CH corresponding to one ultrasonic transduceri+1……CHi+k, compared and completed by the identification to signalling channel Cable proofreader.
The cable proofreader method is by causing cable passes through super the transducing of ultrasonic signal and electric signal, coding, decoding Broadband communications technology transmits ultrasonic signal well, can carry out multiway cable signal simultaneously to line, time saving and energy saving, greatly improves Power network is to line operating efficiency.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims (6)

1. a kind of cable pairing device based on ultrasonic signal processing, it is characterised in that including believing to line signal generator, to line Number receiver;
It is described that Signal coding controller, at least one first ultrasonic transducer, Signal coding are mainly included to line signal generator The output end of controller is connected by wire with the input of the first ultrasonic transducer;
It is described mainly to include signal solution code controller, at least one second ultrasonic transducer, signal decoding to line signal receiver The output end of controller is connected by wire with the input of the second ultrasonic transducer;
The output end of first ultrasonic transducer is connected with tested cable head, the output end of second ultrasonic transducer with Tested cable tail end connection.
2. the cable pairing device according to claim 1 based on ultrasonic signal processing, it is characterised in that the signal is compiled Code controller includes touching with being provided with display control panel, the display control panel on the signal solution code controller Screen, operation button.
3. the cable pairing device according to claim 1 based on ultrasonic signal processing, it is characterised in that described the first to surpass Sonic transducer, the output end of the second ultrasonic transducer contact connection with the insulating barrier of tested cable.
4. line method is comprised the following steps based on the cable pairing device based on ultrasonic signal processing described in claim 1:
Step 1:Opening signal coding controller, selects one to line signalling channel CHi on Signal coding controller, works as display It is when CHi passages are in selected state, then etc. to be launched to line signal;
Step 2:One the first ultrasonic transducer is connected with tested cable head surface, manual operating signal coding controller is opened Move to line signal, the electric signal after coding is converted to ultrasonic signal by the first ultrasonic transducer, and starts starting of oscillation;
Step 3:Opening signal solution code controller, second ultrasonic transducer is connected with wherein one tested cable tail end surface Connect, see whether to receive and identify the ultrasonic signal sent on signal solution code controller, if can not if change in addition A piece tested cable, is investigated one by one, until can correctly show primary signal channel C Hi on signal solution code controller, by right The identification of signalling channel, which is compared, completes cable proofreader.
5. line method is comprised the following steps based on the cable pairing device based on ultrasonic signal processing described in claim 1:
Step 1:Opening signal coding controller, selected on Signal coding controller it is multiple to line signalling channel (CHi, CHi+1……CHi+k), when display is each to line signalling channel (CHi, CHi+1……CHi+k) when being in selected state, then wait Start to line signal;
Step 2:One the first ultrasonic transducer is connected with tested cable head surface, manual operating signal coding controller is opened Move to line signal, the electric signal after coding is converted to ultrasonic signal by the first ultrasonic transducer, and starts starting of oscillation;
Step 3:Opening signal solution code controller, second ultrasonic transducer is connected with wherein one tested cable tail end surface Connect, see whether to receive and identify the ultrasonic signal sent on signal solution code controller, if can not if change in addition A piece tested cable, is investigated one by one, until can correctly show that each first ultrasonic transducer institute is right on signal solution code controller Primary signal passage (CHi, the CH answeredi+1……CHi+k), compared by the identification to signalling channel and complete cable proofreader.
6. the cable proofreader method based on ultrasonic signal processing according to claim 4 or 5, it is characterised in that the first surpass Sonic transducer transmits ultrasonic signal by ultra wide band communication techniques in tested cable.
CN201710764778.3A 2017-08-30 2017-08-30 Cable alignment method based on ultrasonic signal processing Active CN107329039B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108279358A (en) * 2018-01-31 2018-07-13 章森洁 Portable cable label hunting tool
CN114062974A (en) * 2021-11-12 2022-02-18 国网山东省电力公司高密市供电公司 Cable checking device and method

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2233587Y (en) * 1995-11-14 1996-08-21 镇江供电局 Intelligent digital wire selector
US20080081954A1 (en) * 2006-09-28 2008-04-03 Meyer Peter F Cable monitoring apparatus
CN101458290A (en) * 2008-12-31 2009-06-17 江苏省电力公司苏州供电公司 Multi-core cable sequence measuring method based on frequency modulation digital code and apparatus thereof
CN101611459A (en) * 2007-02-19 2009-12-23 矢崎总业株式会社 Cable, cable is painted and equipment and the method made
CN201421483Y (en) * 2009-03-17 2010-03-10 魏桐国 Digital direct-reading cable line checking device
CN101799513A (en) * 2009-11-07 2010-08-11 姚晴洲 Multicore communication cable comprehensive tester
CN202049207U (en) * 2011-02-21 2011-11-23 中国石油化工集团公司 Electronic type cable sorter
CN203191486U (en) * 2013-04-22 2013-09-11 国家电网公司 RFID-based intelligent detection device for power grounding wire
CN103869204A (en) * 2013-07-05 2014-06-18 山东电力集团公司青岛供电公司 Cable core line aligner
CN104330990A (en) * 2014-10-16 2015-02-04 航天科工惯性技术有限公司 Parity check cable model identification method and device thereof
CN104515809A (en) * 2015-01-15 2015-04-15 重庆大学 Device and method for identifying identities of power cables based on ultrasonic wave
CN204346986U (en) * 2015-01-15 2015-05-20 重庆大学 A kind of based on hyperacoustic power cable identity recognition device

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2233587Y (en) * 1995-11-14 1996-08-21 镇江供电局 Intelligent digital wire selector
US20080081954A1 (en) * 2006-09-28 2008-04-03 Meyer Peter F Cable monitoring apparatus
CN101611459A (en) * 2007-02-19 2009-12-23 矢崎总业株式会社 Cable, cable is painted and equipment and the method made
CN101458290A (en) * 2008-12-31 2009-06-17 江苏省电力公司苏州供电公司 Multi-core cable sequence measuring method based on frequency modulation digital code and apparatus thereof
CN201421483Y (en) * 2009-03-17 2010-03-10 魏桐国 Digital direct-reading cable line checking device
CN101799513A (en) * 2009-11-07 2010-08-11 姚晴洲 Multicore communication cable comprehensive tester
CN202049207U (en) * 2011-02-21 2011-11-23 中国石油化工集团公司 Electronic type cable sorter
CN203191486U (en) * 2013-04-22 2013-09-11 国家电网公司 RFID-based intelligent detection device for power grounding wire
CN103869204A (en) * 2013-07-05 2014-06-18 山东电力集团公司青岛供电公司 Cable core line aligner
CN104330990A (en) * 2014-10-16 2015-02-04 航天科工惯性技术有限公司 Parity check cable model identification method and device thereof
CN104515809A (en) * 2015-01-15 2015-04-15 重庆大学 Device and method for identifying identities of power cables based on ultrasonic wave
CN204346986U (en) * 2015-01-15 2015-05-20 重庆大学 A kind of based on hyperacoustic power cable identity recognition device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108279358A (en) * 2018-01-31 2018-07-13 章森洁 Portable cable label hunting tool
CN114062974A (en) * 2021-11-12 2022-02-18 国网山东省电力公司高密市供电公司 Cable checking device and method

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