CN103558638A - Non-contact electrification concealed wire recognizing device - Google Patents
Non-contact electrification concealed wire recognizing device Download PDFInfo
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- CN103558638A CN103558638A CN201310500137.9A CN201310500137A CN103558638A CN 103558638 A CN103558638 A CN 103558638A CN 201310500137 A CN201310500137 A CN 201310500137A CN 103558638 A CN103558638 A CN 103558638A
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Abstract
The invention discloses a non-contact electrification concealed wire recognizing device. The non-contact electrification concealed wire recognizing device comprises alternating current electric field detecting units, signal processing units and concealed wire position recognizing units, the alternating current electric field detecting units are of a plane array type structure, namely, the alternating current electric field detecting units are placed on a plane in an array mode, each electric field detecting unit is connected with one signal conditioning unit, the signal processing units receive output signals of the signal conditioning units to scan a plane array periodically and carry out coherent processing on known open wire signals, then the position of an electrification alternating current wire is judged, the concealed wire position recognizing units receive the position information of the signal processing units, and accordingly the position information of an electrification concealed wire is displayed. The electrification concealed wire is measured through an array sensor, coherent processing is carried out on the signals, and the effect on the measuring result from the outside electromagnetic interference is avoided. Meanwhile, the position and the direction of the electrification concealed wire can be accurately displayed through a plane array type display unit, and a safety guarantee is brought to power construction.
Description
Technical field
The present invention relates to a kind of charged concealed wire recognition device that is applied to, specifically refer to a kind ofly can identify the recognition device that buries live electric cable in other nonmetal shielding objects.
Background technology
The mode of now measuring for concealed wire is more, mainly contains following two kinds: 1 metal detection method: the metering system according to metal detection principle is very perfect, can not directly confirm that whether cable is charged in test process.2 notes ripple methods: adopt signal circuit principle to inject test signal in cable, in other positions, according to the signal intensity detecting, judge whether this position has cable, these class methods have indirect coupling and straight juncture, direct-coupling needs outage detection, due to the impact of signal radiation scope, conventionally cannot directly judge live electric cable position and trend.The direct measuring method of live electric cable is applied to the measurement of high-pressure electrified conductor conventionally, and the direct measurement of low-voltage electric body is comparatively rare.In actual Phase of Electric Power Projects, conventionally run into not position and the trend of outage detection live electric cable, the use of noting ripple method, metal detection method is restricted.
Summary of the invention
The object of the invention is, for the deficiency of noting ripple method, metal detection method, to develop a kind of novel contactless charged concealed wire recognition device.
To achieve these goals, the technical solution used in the present invention is: be applied to contactless charged concealed wire recognition device and mainly following components, consist of: AC field probe unit, signal processing unit, concealed wire location identification unit etc.AC field probe unit is plane configuration structure, in a plane, by array way, place several electric field detecting unit, each electric field detecting unit is connected with a signal condition unit, the output signal of signal processing unit receiving signal reason unit is carried out intermittent scanning to planar array, and do relevant processing with known open-wire line signal, judge accordingly the position of charged interchange wire, concealed wire location identification unit receives the positional information of signal processing unit and shows accordingly its positional information.
Above-mentioned contactless charged concealed wire recognition device, it is further characterized in that it takes plane configuration sensor, by the processing that is concerned with of measuring-signal and the open-wire line voltage signal tested, obtain the related coefficient between the two, thereby can effectively judge the relation between measured signal and power voltage line signal, get rid of the interference of external environment.
Above-mentioned contactless charged concealed wire recognition device, it is further characterized in that it takes plane configuration to show, at each back side, electric field detecting unit, a LED is housed, and according to the strong and weak brightness of electric field, changes, and makes observing the position of being convenient to judge live wire.
Above-mentioned contactless charged concealed wire recognition device, it is further characterized in that its plane configuration sensor takes multilayered printed technique on matrix, to form a pellicular cascade, this capacitive stack to external world electric field change is responsive.
Above-mentioned contactless charged concealed wire recognition device, it is further characterized in that because adopting plane configuration sensor and light-emitting diode display, simultaneously pair array signal carries out the processing that is concerned with of periodic scan and known open-wire line voltage signal, obtain the related coefficient between the two, define position and the trend of tested cable, can on both direction, determine and possess 2D measuring ability in the position of live electric cable.
The present invention adopts array-type sensor to realize the measurement to charged concealed wire, owing to adopting array measurement of inductance signal, signal coherence is processed simultaneously, has solved the impact of outside electromagnetic interference on measurement result.Planar array type display unit can accurately show position and the trend of charged concealed wire simultaneously, and this will bring larger safety guarantee in power construction process.
Accompanying drawing explanation
Fig. 1 is product knot signal composition of the present invention.
Fig. 2 is planar array type sensor of the present invention and display device structure figure (front).
Fig. 3 is planar array type sensor of the present invention and display device structure figure (back side).
Fig. 4 is principle of products block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail as follows:
A typical contactless charged concealed wire recognition device is comprised of AC field probe unit, signal processing unit, concealed wire position display unit etc., power supply.This device can carry out position, move towards identification the live electric cable not being hidden in the nonmetal shielding media such as body of wall, isolated pipe, concrete.Meet the requirement to safety in power construction.
[embodiment]
Referring to Fig. 1, example of the present invention is comprised of AC field probe unit, signal processing unit, concealed wire location identification unit etc., power supply.Wherein AC field probe unit is a kind of planar array type sensor, on an induction planes, respond to the distribution size of AC field, the vector size of electric field is directly proportional to the induced voltage at electric capacity two ends, and planar array type sensing unit also can reduce external electrical field to the impact of measuring; For reducing transmission, on the impact of electric capacity both end voltage, at each probe unit, there is a signal conditioning circuit that signal Low ESR is exported behind.The induced signal that signal processing unit scanning AC field is surveyed,, parses wherein and the component that installs the power supply homophase being connected the signal processing that be concerned with through A/D sample circuit, signal processor, sends instruction simultaneously and lights corresponding LED.Power supply unit mainly provides the working power of each ingredient, obtains the sampled signal of power supply from power supply sampling simultaneously.
Referring to Fig. 2, Fig. 3 this planar array type sensor assembly and display device structure figure for invention, sensor and display are distributed in the both sides of plate, sensor is comprised of pcb board, electric field induction device, LED lamp, AC field inductor, LED lamp adopt the encapsulation of SMT technique, reduce the installation dimension of device, electric field induction device is for taking printing technology to form a pellicular cascade on matrix, lamination forms a capacitor, when the normal direction along matrix has an electric field to pass, at lamination two ends, produce induced voltage, voltage swing is directly proportional to the size of electric field intensity.Signal conditioning circuit and LED are placed on the same face.Because of the position of charged concealed wire and the judgement precision of trend, take different arrays, be generally 100*100, level and vertical direction have 100 electric field induction devices and LED lamp.
Referring to Fig. 4, it is theory diagram of the present invention.Power supply unit, for whole device provides working power, obtains the sampled signal of surveyed power supply simultaneously; Signal conditioning circuit is realized impedance transformation, anti-aliasing, amplitude limit function, signal processing circuit realizes the scanning sample to sensor assembly output signal, read the sampled signal of power supply unit simultaneously, to both processing that is concerned with, obtain wherein the component with the sampled signal homophase of power supply unit, light corresponding LED simultaneously.
Although the present invention is described by concrete enforcement example and accompanying drawing, implements example and accompanying drawing and be not used for limiting the present invention.Those skilled in the art can make various distortion and improvement in spiritual scope of the present invention, and it is equally within protection scope of the present invention.Therefore the scope identical or that be equal to that protection scope of the present invention should be defined with the application's claim protection is as the criterion.
Claims (5)
1. a contactless charged concealed wire recognition device, it is characterized in that: it comprises AC field probe unit, signal processing unit, concealed wire location identification unit, described AC field probe unit is plane configuration structure, in a plane, by array way, place several electric field detecting unit, each electric field detecting unit is connected with a signal condition unit, described signal processing unit receives the output signal of described signal condition unit planar array is carried out to intermittent scanning, and do relevant processing with known open-wire line signal, judge accordingly the position of charged interchange wire, described concealed wire location identification unit receives the positional information of described signal processing unit and shows accordingly its positional information.
2. contactless charged concealed wire recognition device according to claim 1, it is characterized in that: it takes plane configuration sensor, by the processing that is concerned with of measuring-signal and the open-wire line voltage signal tested, obtain the related coefficient between the two, thereby effectively judge the relation between measured signal and power voltage line signal, get rid of the interference of external environment.
3. contactless charged concealed wire recognition device according to claim 2, is characterized in that: described plane configuration sensor takes multilayered printed technique on matrix, to form a pellicular cascade, and this capacitive stack to external world electric field change is responsive.
4. contactless charged concealed wire recognition device according to claim 1, it is characterized in that: it takes plane configuration to show, at each back side, electric field detecting unit, a LED is housed, according to the strong and weak brightness of electric field, changes, make observing the position of being convenient to judge live wire.
5. contactless charged concealed wire recognition device according to claim 1, it is characterized in that: it takes plane configuration sensor and light-emitting diode display, simultaneously pair array signal carries out the processing that is concerned with of periodic scan and known open-wire line voltage signal, obtain the related coefficient between the two, define position and the trend of tested cable, can on both direction, determine and possess 2D measuring ability in the position of live electric cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310500137.9A CN103558638B (en) | 2013-10-22 | 2013-10-22 | A kind of contactless charged concealed wire identification device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310500137.9A CN103558638B (en) | 2013-10-22 | 2013-10-22 | A kind of contactless charged concealed wire identification device |
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| CN103558638A true CN103558638A (en) | 2014-02-05 |
| CN103558638B CN103558638B (en) | 2016-08-17 |
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| CN201310500137.9A Active CN103558638B (en) | 2013-10-22 | 2013-10-22 | A kind of contactless charged concealed wire identification device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104216029A (en) * | 2014-07-30 | 2014-12-17 | 河南科技大学 | Temperature effect based concealed wire detector |
| CN110398779A (en) * | 2019-07-12 | 2019-11-01 | 四川建筑职业技术学院 | A kind of concealed wiring detection device and detection method |
Citations (6)
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| JPS56110069A (en) * | 1980-02-04 | 1981-09-01 | Kokusai Denshin Denwa Co Ltd <Kdd> | Cable tracking method |
| JPH03257321A (en) * | 1990-03-08 | 1991-11-15 | Komatsu Ltd | Relative position detecting apparatus of underground excavator |
| US20010010460A1 (en) * | 1999-08-02 | 2001-08-02 | Miller Lawrence F. | Method for locating energized electric conductor |
| CN1395115A (en) * | 2002-06-20 | 2003-02-05 | 钟伟章 | Hidden line detection instrument |
| CN2586970Y (en) * | 2002-11-15 | 2003-11-19 | 黄瑞华 | Buried wire detecting apparatus |
| CN203117341U (en) * | 2013-01-18 | 2013-08-07 | 李伟哲 | An electronic wire finding invisible automatic tracing pen |
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2013
- 2013-10-22 CN CN201310500137.9A patent/CN103558638B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56110069A (en) * | 1980-02-04 | 1981-09-01 | Kokusai Denshin Denwa Co Ltd <Kdd> | Cable tracking method |
| JPH03257321A (en) * | 1990-03-08 | 1991-11-15 | Komatsu Ltd | Relative position detecting apparatus of underground excavator |
| US20010010460A1 (en) * | 1999-08-02 | 2001-08-02 | Miller Lawrence F. | Method for locating energized electric conductor |
| CN1395115A (en) * | 2002-06-20 | 2003-02-05 | 钟伟章 | Hidden line detection instrument |
| CN2586970Y (en) * | 2002-11-15 | 2003-11-19 | 黄瑞华 | Buried wire detecting apparatus |
| CN203117341U (en) * | 2013-01-18 | 2013-08-07 | 李伟哲 | An electronic wire finding invisible automatic tracing pen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104216029A (en) * | 2014-07-30 | 2014-12-17 | 河南科技大学 | Temperature effect based concealed wire detector |
| CN110398779A (en) * | 2019-07-12 | 2019-11-01 | 四川建筑职业技术学院 | A kind of concealed wiring detection device and detection method |
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| Publication number | Publication date |
|---|---|
| CN103558638B (en) | 2016-08-17 |
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Address after: 210031 Nanjing high tech Zone, Liuzhou, North Road, No. 22, No. Applicant after: JIANGSU NARI TONGCHI AUTOMATION SYSTEM CO., LTD. Address before: 210031 Nanjing high tech Development Zone, Liuzhou, North Road, No. 22, No. Applicant before: Jiangsu Tongchi Automatization System Co., Ltd. |
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Effective date of registration: 20170209 Address after: 210031 Nanjing high tech Zone, Liuzhou, North Road, No. 22, No. Patentee after: STATE GRID NANRUI SANNENG ELECTRIC POWER INSTRUMENT (NANJING) CO., LTD. Address before: 210031 Nanjing high tech Zone, Liuzhou, North Road, No. 22, No. Patentee before: JIANGSU NARI TONGCHI AUTOMATION SYSTEM CO., LTD. |