CN101793935B - Non-contact type wire tracing method and device - Google Patents
Non-contact type wire tracing method and device Download PDFInfo
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- CN101793935B CN101793935B CN 201010019213 CN201010019213A CN101793935B CN 101793935 B CN101793935 B CN 101793935B CN 201010019213 CN201010019213 CN 201010019213 CN 201010019213 A CN201010019213 A CN 201010019213A CN 101793935 B CN101793935 B CN 101793935B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003321 amplification Effects 0.000 claims abstract description 65
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 65
- 230000005236 sound signal Effects 0.000 claims abstract description 12
- 238000007493 shaping process Methods 0.000 claims description 14
- 230000035945 sensitivity Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
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- 238000010586 diagram Methods 0.000 description 7
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Abstract
The invention discloses a non-contact type wire tracing device which comprises a transmitter and a receiver, wherein the transmitter comprises a signal generating module, a modulating module and an amplifying module. A main frequency signal generated by the signal generating module is used as a carrier signal, forms a modulating signal by a modulating module, and forms an amplifying modulating signal by the amplification of the amplifying module. The amplifying module is connected with a conducting wire and transmits the amplifying modulating signal through the conducting wire. The receiver comprises a receiving module, a frequency-selecting amplifying module, a demodulating module and an identification generation audio module, wherein the receiving module comprises a carbon rod coil for sensing the amplifying modulating signal transmitted by the transmitter, and the sensed and received amplifying modulating signal is sent to the frequency-selecting amplifying module to amplify and then demodulated by the demodulating module; the demodulated amplifying modulating signal enters the identification generation audio module to identify and generate a corresponding audio signal; and the output end of the identification generation audio module is connected with an indicator. The invention also discloses a non-contact type wire tracing method.
Description
Technical field
The present invention relates to a kind of module detecting instrument, relate more specifically to the non-contact line haunting device that a kind of communication, computer network are used.
Background technology
Along with network and the communications industry develop rapidly, communication becomes how much quantity increases with network capacity, the difficulty of wiring is further improve also.Line finder becomes the indispensable instrument of searching cable in the various metallic circuit construction works such as network cable, communication cable and the daily servicing process.It can be rapidly, find required cable efficiently from a large amount of wire harness cables.
At present, known line finder has two kinds, and a kind of is contact: with the direct osculatory core metal of metal probe part, judge in conjunction with universal electric meter again.This mode needs the insulating covering of strip off metal wire, because inconvenient less use.A kind of is contactless: be comprised of audio-frequency generator and audio receiver, because do not need the insulating covering of strip off metal wire to survey, replace gradually the contact line finder to come into operation.
Usually, the non-contact line haunting device accesses on the port of target cable by the sound signal that clapp oscillator sends by general-purpose interfaces such as RJ45/RJ11, make produce around the target cord loop one around signal field, utilize the very fast signal field that it sends with end identification in the loop of receiver on the way, thereby find the cable of these clauses and subclauses.
But what the generator of existing non-contact line haunting device and receiver were used is sound signal, and insufficient strength uses sound effect not good enough, and sensitivity is not high and have noise, thereby has increased the detection operations difficulty.
Therefore, be necessary to provide a kind of non-contact line haunting apparatus and method to overcome defects.
Summary of the invention
The purpose of this invention is to provide a kind of non-contact line haunting device, can reduce noise, improve hunting sensitivity, thereby improved the antijamming capability of work efficiency and pick-up unit, reduced detection operations intensity; And extend within the walls in investigative range, light current and the forceful electric power wiring in the inferior deep layer.
Another object of the present invention provides a kind of high sensitivity line-hunting method, can reduce noise, improves hunting sensitivity, thereby has improved the antijamming capability of work efficiency and pick-up unit, has reduced detection operations intensity; And extend within the walls in investigative range, light current and the forceful electric power wiring in the inferior deep layer.
For achieving the above object, the invention provides a kind of non-contact line haunting device, comprise transmitter and receiver, described transmitter comprises signal generating module, modulation module and amplification module, the dominant frequency signal that described signal generating module produces as carrier signal after described modulation module forms modulation signal, amplify formation through described amplification module and amplify modulation signal, described amplification module connects wire and launches described amplification modulation signal by described wire; Described receiver comprises that receiver module, frequency-selecting amplification module, demodulation module and identification produce audio-frequency module, described receiver module comprises that a carbon-point coil is to receive the amplification modulation signal of described transmitter emission, and the amplification modulation signal that will receive is delivered to described frequency-selecting amplification module and is amplified by described demodulation module and carry out demodulation, amplification modulation signal after demodulation enters described identification generation audio-frequency module and identifies and produce corresponding sound signal, and the output terminal that described identification produces audio-frequency module is connected with indicator.
Preferably, described modulation module is FM circuit or modulation circuit.
Preferably, described transmitter also comprises frequency division module, and the dominant frequency signal that described signal generating module produces enters described modulation module as carrier signal behind described frequency division module frequency division.
Preferably, described signal generating module comprises vibration generation unit and shaping unit, and the dominant frequency signal that described vibration generation unit produces is exported after the shaping unit shaping; Described modulation module comprises microprocessor and signal modulating unit, and the dominant frequency signal as carrier signal that the square-wave modulation signal that described microprocessor produces and described signal generating module produce is modulated at described signal modulating unit.
Preferably, described receiver also comprises the audio frequency amplification module, described identification produce sound signal that audio-frequency module produces after described audio frequency amplification module amplifies again by described indicator for displaying.
Preferably, described frequency-selecting amplification module comprises an adjustable potentiometer.
Preferably, described wire is concentric cable, telephone wire, netting twine or other wire rope.
Preferably, described indicator is LCD liquid crystal display, LED light emitting diode, loudspeaker or earphone.
A kind of high sensitivity line-hunting method may further comprise the steps: utilize vibration that module occurs and produce the dominant frequency signal; Described dominant frequency signal is formed modulation signal as carrier signal through modulation module; Launch with described modulation signal amplification formation amplification modulation signal and by wire; Utilize the reaction of carbon-point coil to receive the amplification modulation signal of described emission; The amplification modulation signal that induction is received further amplifies; Amplification modulation signal after amplifying is carried out demodulation form restituted signal; Pass through indicator for displaying after identifying restituted signal and producing corresponding sound signal.
Compared with prior art, non-contact line haunting device of the present invention adopts the carbon-point coil that signal is received frequency-selecting and processes, and can reduce noise, improves hunting sensitivity, thereby improved the antijamming capability of work efficiency and pick-up unit, reduced detection operations intensity; And extend within the walls in investigative range, light current and the forceful electric power wiring in the inferior deep layer.
By following description also by reference to the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used for explaining embodiments of the invention.
Description of drawings
Fig. 1 is the schematic diagram of non-contact line haunting device of the present invention.
Fig. 2 is the theory diagram of the transmitter of non-contact line haunting device the first embodiment of the present invention.
Fig. 3 is the theory diagram of the transmitter of non-contact line haunting device the second embodiment of the present invention.
Fig. 4 is the theory diagram of the receiver of non-contact line haunting device of the present invention.
Fig. 5 is the flow chart of steps of non-contact line haunting method of the present invention.
Embodiment
With reference now to accompanying drawing, describe embodiments of the invention, similar element numbers represents similar element in the accompanying drawing.As mentioned above, the invention provides a kind of non-contact line haunting device and line-hunting method, can reduce noise, improve hunting sensitivity, thereby improved the antijamming capability of work efficiency and pick-up unit, reduced detection operations intensity.
Please refer to Fig. 1, described non-contact line haunting device 10 comprises transmitter 100 and receiver 200.On the port of described transmitter 100 by general-purpose interface access target cable, make produce around the target cord loop one around signal field, described receiver 200 utilizes its probe to identify the signal field that described transmitter 100 sends with end on the way in the loop, thereby finds the cable of these clauses and subclauses.
With reference to figure 2, be the theory diagram of the transmitter 100 of non-contact line haunting device 10 first embodiment of the present invention.Described transmitter 100 comprises signal generating module 110, modulation module 120 and amplification module 130, described signal generating module 110 comprises vibration generation unit 111 and shaping unit 112, and the dominant frequency signal that described vibration generation unit 111 produces is exported after shaping unit 112 shapings; Described modulation module 120 comprises microprocessor 121 and signal modulating unit 122, and the dominant frequency signal as carrier signal that the square-wave modulation signal that described microprocessor 121 produces and described signal generating module 110 produce is modulated at described signal modulating unit 122; Described modulation module 120 adopt frequency modulation modulation or amplitude-modulating modulation all can, the invention process effect is not affected.Described amplifying circuit 130 comprises the first amplifying unit 132 and second amplifying unit 134 in parallel with described the first amplifying unit 132.The dominant frequency signal that the vibration generation unit 112 of described signal generating module 110 produces forms modulation signal as carrier signal through described modulation module 120 after the shaping unit 112 of signal generating module 110 carries out rectification, described modulation signal amplifies formation amplification modulation signal through the first amplifying unit 131 of described amplification module 130, described amplification module 130 connects wire and launches described amplification modulation signal by wire, described wire is concentric cable, telephone wire, netting twine or other wire rope.The circuit structure of described the second amplifying unit 132 is similar to described the first amplifying unit 132, is used for preventing that whole transmitter 100 is burned.
Please refer to Fig. 3, be the theory diagram of the transmitter 300 of non-contact line haunting device the second embodiment of the present invention.Described transmitter 300 comprises signal generating module 310, frequency division module 340, modulation module 320 and amplification module 330, described signal generating module 310 comprises vibration generation unit 311 and shaping unit 312, and the dominant frequency signal that described vibration generation unit 311 produces forms fractional frequency signal through shaping unit 312 shapings by described frequency dividing circuit 340 frequency divisions; Described modulation module 320 comprises microprocessor 321 and signal modulating unit 322, and the dominant frequency signal that the square-wave modulation signal that described microprocessor 321 produces and described signal generating module 310 produce is modulated at described signal modulating unit 322 as carrier signal through the fractional frequency signal that described frequency dividing circuit 340 frequency divisions form; Described modulation module 320 adopt frequency modulation modulation or amplitude-modulating modulation all can, the invention process effect is not affected.Described amplifying circuit 330 comprises the first amplifying unit 332 and second amplifying unit 334 in parallel with described the first amplifying unit 332.The dominant frequency signal that the vibration generation unit 312 of described signal generating module 310 produces carries out rectification through the shaping unit 312 of signal generating module 310 and forms modulation signals as carrier signal through described modulation module 320 by the fractional frequency signal that described frequency dividing circuit 340 frequency divisions form, described modulation signal amplifies formation amplification modulation signal through the first amplifying unit 331 of described amplification module 330, and described amplification module 330 connects wires and launches described amplification modulation signal by described wire; The circuit structure of described the second amplifying unit 332 is similar to described the first amplifying unit 332, is used for preventing that whole transmitter 300 is burned.Described wire is concentric cable, telephone wire, netting twine or other wire rope.
With reference to figure 4, be the theory diagram of the receiver 200 of non-contact line haunting device 10 of the present invention.Described receiver 200 comprises receiver module 210, frequency-selecting amplification module 220, demodulation module 230, identification produces audio-frequency module 240 and audio frequency amplification module 250, described receiver module 210 comprises that a carbon-point coil 211 is to receive the amplification modulation signal of described transmitter 100 emissions, and the amplification modulation signal that will receive is delivered to described frequency-selecting amplification module 220 and is amplified, described frequency-selecting amplification module 220 comprises one-level amplifying unit 221, secondary amplifying unit 222 and three grades of amplifying units 223, all resonant selecting frequency multistage amplifier circuits during described one-level amplifying unit 221 and secondary amplifying unit 222 form, described three grades of amplifying units 223 are operational amplification circuit.Carry out three grades of amplifications adjustment signals after the amplification through described frequency-selecting amplification module 220 and carry out demodulation through described demodulation module 230, amplification modulation signal after demodulation enters described identification generation audio-frequency module 240 and identifies and produce corresponding sound signal, and described identification produces the sound signal of audio-frequency module 240 generations and pass through an indicator 50 demonstrations again after described audio frequency amplification module 250 amplifies.The one-level amplifying unit 221 of described frequency-selecting amplification module 220 comprises an adjustable potentiometer 2211, described adjustable potentiometer 2211 is used for when seeking the target cable, adjust gradually the sensitivity of described receiver 200 with the distance of target cable according to receiver 200 probes, thereby more effectively seek out the target wire.Described demodulation module 230 and described transmitter 100(or transmitter 300) modulation module corresponding, can effectively demodulate the square-wave modulation signal that the modulation module of described transmitter 100 produces.Described indicator 50 is LCD liquid crystal display, LED light emitting diode, loudspeaker or earphone.
With reference to figure 5, a kind of high sensitivity line-hunting method of the present invention may further comprise the steps:
S101: utilize vibration that module occurs and produce the dominant frequency signal;
S102: described dominant frequency signal is formed modulation signal as carrier signal through modulation module;
S103: launch with described modulation signal amplification formation amplification modulation signal and by wire;
S104: utilize the coil-induced frequency-selecting of carbon-point to receive described amplification modulation signal;
S105: the amplitude through the just described amplification modulation signal of third stage amplifier is amplified;
S106: the amplification modulation signal after will amplifying carries out demodulation;
S107: identify the amplification modulation signal after the demodulation and produce corresponding sound signal and amplify after pass through indicator for displaying.
In the hunting process, if metal wire does not have breakpoint, receiver just can be sensed the signal that transmitter is launched, and indicator just has the indication sound, if metal wire has breakpoint, receiver just can not receive signal, and indicator is without indication sound.In concrete operations, locate by survey line according to the power of indication sound by the continuous moving receiver, determine diminishing suddenly or disappear to determine the position of breakpoint by indication sound behind the survey line.Thereby realize easily and fast hunting purpose.Since the emission the amplification modulation signal have stronger penetrability, so within the walls in addition the metal wire of underground deep layer equally applicable.
Above invention has been described in conjunction with most preferred embodiment, but the present invention is not limited to the embodiment of above announcement, and should contain various modification, equivalent combinations of carrying out according to essence of the present invention.
Claims (9)
1. non-contact line haunting device, comprise transmitter and receiver, it is characterized in that: described transmitter comprises signal generating module, modulation module and amplification module, the dominant frequency signal that described signal generating module produces as carrier signal after described modulation module forms modulation signal, amplify formation through described amplification module and amplify modulation signal, described amplification module connects wire and launches described amplification modulation signal by described wire; Described receiver comprises that receiver module, frequency-selecting amplification module, demodulation module and identification produce audio-frequency module, described receiver module comprises that a carbon-point coil receives the amplification modulation signal of described transmitter emission with induction, and the amplification modulation signal that induction receives is delivered to described frequency-selecting amplification module amplify by described demodulation module and carry out demodulation, amplification modulation signal after demodulation enters described identification generation audio-frequency module and identifies and produce corresponding sound signal, and the output terminal that described identification produces audio-frequency module is connected with indicator.
2. non-contact line haunting device as claimed in claim 1, it is characterized in that: described modulation module is FM circuit or modulation circuit.
3. non-contact line haunting device as claimed in claim 1, it is characterized in that: described transmitter also comprises frequency division module, the dominant frequency signal that described signal generating module produces enters described modulation module as carrier signal behind described frequency division module frequency division.
4. non-contact line haunting device as claimed in claim 1 is characterized in that: described signal generating module comprises vibration generation unit and shaping unit, and the dominant frequency signal that described vibration generation unit produces is exported after the shaping unit shaping; Described modulation module comprises microprocessor and signal modulating unit, and the dominant frequency signal as carrier signal that the square-wave modulation signal that described microprocessor produces and described signal generating module produce is modulated at described signal modulating unit.
5. non-contact line haunting device as claimed in claim 1, it is characterized in that: described receiver also comprises the audio frequency amplification module, described identification produce sound signal that audio-frequency module produces after described audio frequency amplification module amplifies again by described indicator for displaying.
6. non-contact line haunting device as claimed in claim 1, it is characterized in that: described frequency-selecting amplification module comprises an adjustable potentiometer.
7. non-contact line haunting device as claimed in claim 1, it is characterized in that: described wire is concentric cable, telephone wire, netting twine or other wire rope.
8. non-contact line haunting device as claimed in claim 1, it is characterized in that: described indicator is LCD liquid crystal display, LED light emitting diode, loudspeaker or earphone.
9. high sensitivity line-hunting method is characterized in that may further comprise the steps:
Utilize vibration that module occurs and produce the dominant frequency signal;
Described dominant frequency signal is formed modulation signal as carrier signal through modulation module;
Launch with described modulation signal amplification formation amplification modulation signal and by wire;
Utilize the described amplification modulation signal of the coil-induced reception of carbon-point;
The amplification modulation signal that induction is received further amplifies;
Amplification modulation signal after amplifying is carried out demodulation form restituted signal;
Pass through indicator for displaying after identifying restituted signal and producing corresponding sound signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010019213 CN101793935B (en) | 2010-01-05 | 2010-01-05 | Non-contact type wire tracing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010019213 CN101793935B (en) | 2010-01-05 | 2010-01-05 | Non-contact type wire tracing method and device |
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| Publication Number | Publication Date |
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| CN101793935A CN101793935A (en) | 2010-08-04 |
| CN101793935B true CN101793935B (en) | 2013-01-23 |
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| CN 201010019213 Expired - Fee Related CN101793935B (en) | 2010-01-05 | 2010-01-05 | Non-contact type wire tracing method and device |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730403A (en) * | 2013-06-25 | 2015-06-24 | 李国胜 | Underground cable electric leakage detection device |
| CN104007350A (en) * | 2014-06-16 | 2014-08-27 | 欧阳庆丰 | Multifunctional line tracking device |
| CN103995217A (en) * | 2014-06-16 | 2014-08-20 | 雷鸣 | Novel line hunting instrument |
| CN104020494A (en) * | 2014-06-16 | 2014-09-03 | 雷鸣 | Novel line hunting method |
| CN104007474A (en) * | 2014-06-16 | 2014-08-27 | 欧阳庆丰 | High-sensitivity line tracking method |
| CN104007359A (en) * | 2014-06-16 | 2014-08-27 | 欧阳庆丰 | Multifunctional noiseless line tracking device |
| CN104020493A (en) * | 2014-06-16 | 2014-09-03 | 欧阳庆丰 | High-sensitivity line finder |
| CN106341196B (en) * | 2015-07-16 | 2019-08-20 | 苏州宝时得电动工具有限公司 | Breaking point detection device and method |
| CN106998227B (en) * | 2017-02-10 | 2023-12-22 | 北京邮电大学世纪学院 | Non-contact optical cable identification instrument and optical cable identification method |
| CN109490698B (en) * | 2019-01-08 | 2024-07-23 | 上海市安全生产科学研究所 | Line identification system |
| CN112305620A (en) * | 2020-10-30 | 2021-02-02 | 贵州电网有限责任公司 | Cable hunting recognition device and hunting method |
| CN118367964A (en) * | 2024-04-26 | 2024-07-19 | 浙江信测通信股份有限公司 | Non-contact type cable signal coupling device and method for hunting by adopting same |
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Patent Citations (8)
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| CN2046633U (en) * | 1989-03-30 | 1989-10-25 | 王钟 | Electronic wire matching instrument |
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Effective date of registration: 20160831 Address after: Nancheng Street Golden Road 523000 Guangdong city of Dongguan province No. 1 days of the digital city C District No. 1 building room 407 Patentee after: Dongguan fir Electronics Co., Ltd. Address before: 523000 Guangdong Province, Dongguan city's Eddie Garden District 14 floor 2 block 301 Patentee before: Lin Ye |
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