CN203069800U - Underground cable detecting instrument with high precision - Google Patents
Underground cable detecting instrument with high precision Download PDFInfo
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- CN203069800U CN203069800U CN 201320110499 CN201320110499U CN203069800U CN 203069800 U CN203069800 U CN 203069800U CN 201320110499 CN201320110499 CN 201320110499 CN 201320110499 U CN201320110499 U CN 201320110499U CN 203069800 U CN203069800 U CN 203069800U
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- chip microcomputer
- receiver
- frequency
- filter circuit
- output terminal
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Abstract
The utility model discloses an underground cable detecting instrument with high precision, comprising a receiver. The receiver is internally provided with a receiving antenna module, an input tuning circuit, a program control amplifier, a frequency-selecting filter circuit and a singlechip microcomputer which are sequentially connected. The output end of the singlechip microcomputer is connected with a display unit and a loudspeaker. The receiver is further provided with a keyboard for inputting selecting frequency, and a gain control knob for controlling gain of the program control amplifier, wherein the keyboard and the gain control knob are respectively connected to the input end of the singlechip microcomputer. The output end of the singlechip microcomputer outputs a frequency control signal to the frequency-selecting filter circuit through a clock module. The output end of the singlechip microcomputer outputs a gain control signal to the program control amplifier through an A/D (Analog to Digital) converter. According to the detecting instrument provided by the utility model, no emitter is used, and an alternating magnetic field generated by an alternating current with frequency of 50-60Hz in a power cable, or higher harmonic of a power frequency signal in a coupling line pipe is directly detected. The detecting instrument is simple and practical in structure, high in detection precision and suitable for large-scale popularization and use.
Description
Technical field
The utility model relates to a kind of cable detector that descends accurately.
Background technology
When the underground utilities of electric power transmission line were followed the trail of, most pipe and cable detectors adopted inductive electromagnetic method to survey position, the trend of underground cable.Detection instrument mainly is made up of the transmitter and receiver two large divisions, transmitter generates electromagnetic waves and is sent to underground by dispensing device, after underground metallic cable is sensed electromagnetic wave, produce induction current in the metal surface, this electric current is propagated to the distant place along cable than the concentrated area, in communication process, this electric current is radiation electric signal earthward again, like this when receiver during at ground location, at the underground ground surface that cable is arranged, just can receive electric signal, this signal is position and the trend of underground cable.But because Urban Buried Pipeline Network kind complexity adheres to all trades and professions separately, bigger if metal pipe lines such as chance running water pipe, Gas Pipe disturb during detection, influence accuracy.In addition, when using, it needs transmitter and receiver two table apparatus, complex operation.
The utility model content
For solving the deficiencies in the prior art, the utility model purpose be to provide a kind of remove transmitter from descend cable detector accurately, it directly measures the electromagnetic wave that underground operating cable produces, avoid the interference of other metal pipe lines, this detection instrument is simple in structure, accuracy of detection is high, is applicable to that power industry is to the detection of underground cable line.
The utility model is that the technical scheme that the technical solution problem adopts is:
A kind of cable detector that descends accurately, formed by receiver, described receiver is built-in with the receiving antenna module that connects successively, input tuning circuit, programmable amplifier, selective frequency filter circuit, single-chip microcomputer, described receiving antenna module comprises the last horizontal coil parallel with surface level and following horizontal coil, between last horizontal coil and following horizontal coil, be provided with the vertical coil vertical with surface level, described input tuning circuit is connected with the output terminal of single-chip microcomputer, it receives from one group or two groups of coils selecting to connect the receiving antenna module after the control signal of single-chip microcomputer, and the two paths of signals of formation transfers to programmable amplifier I and programmable amplifier II respectively, give single-chip microcomputer behind selective frequency filter circuit I and the selective frequency filter circuit II and compare processing.When receiver adopts peak-mode, use two horizontal coils, use a horizontal coil when adopting the broad peak pattern, use a vertical coil when adopting the valley pattern.The output terminal of described single-chip microcomputer is connected with for showing display unit, loudspeaker, display unit is used for locating information such as display waveform figure signal, data-signal and direction instruction signal, and loudspeaker is for sending tone and the volume sound signal with the signal size variation.Described receiver also is provided with for input and selects the keyboard of frequency and the gain control handle of control programmable amplifier gain, described keyboard and gain control handle are connected to the input end of single-chip microcomputer respectively, the output terminal of described single-chip microcomputer controls signal to selective frequency filter circuit by the clock module output frequency, and the output terminal of described single-chip microcomputer passes through the A/D converter outputing gain control signal to programmable amplifier.The user customizes the receive frequency of present receiving machine by keyboard, and passes through the signal sensitivity that the gain control handle is regulated present receiving machine.
Further, described display unit comprises image display, data disaply moudle, pointer display module, described image display, data disaply moudle, pointer display module are connected with the output terminal of single-chip microcomputer respectively, and it receives the pipeline field signal by oscillogram, numeral and direction arrow reflection receiver respectively.
The beneficial effects of the utility model are: the cable detector that descends accurately of the utility model design is removed transmitter from, the higher hamonic wave of the power frequency component that has in the alternating magnetic field that the exchange current that direct detection power cable medium frequency is 50-60Hz produces or its coupled line, simple and practical, the accuracy of detection height is fit to large-scale promotion and uses.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is described further.
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the structural representation of receiving antenna module.
Embodiment
With reference to Fig. 1-Fig. 2, a kind of cable detector that descends accurately that the utility model provides, formed by receiver 1, the higher hamonic wave of the power frequency component that has in the alternating magnetic field that the exchange current that its direct employing receiver 1 detection power cable medium frequency is 50-60Hz produces or its coupled line, described receiver 1 is built-in with the receiving antenna module 11 that connects successively, input tuning circuit 12, programmable amplifier, selective frequency filter circuit, single-chip microcomputer 15, described receiving antenna module 11 comprises the last horizontal coil parallel with surface level 110 and following horizontal coil 111, between last horizontal coil 110 and following horizontal coil 111, be provided with the vertical coil vertical with surface level 112, described input tuning circuit 12 is connected with the output terminal of single-chip microcomputer 15, it receives from one group or two groups of coils selecting to connect receiving antenna module 11 after the control signal of single-chip microcomputer 15, and the two paths of signals of formation transfers to programmable amplifier I131 and programmable amplifier II132 respectively, give single-chip microcomputer 15 behind selective frequency filter circuit I141 and the selective frequency filter circuit II142 and compare processing.When receiver 1 adopts peak-mode, use two horizontal coils, use a horizontal coil when adopting the broad peak pattern, use a vertical coil when adopting the valley pattern.The output terminal of described single-chip microcomputer 15 is connected with display unit 16, loudspeaker 17, display unit 16 is used for locating information such as display waveform figure signal, data-signal and direction instruction signal, and loudspeaker 17 is for sending tone and the volume sound signal with the signal size variation.Described receiver 1 also is provided with for input and selects the keyboard 18 of frequency and the gain control handle 19 of control programmable amplifier gain, described keyboard 18 and gain control handle 19 are connected to the input end of single-chip microcomputer 15 respectively, the output terminal of described single-chip microcomputer 15 controls signal to selective frequency filter circuit by clock module 20 output frequencies, and the output terminal of described single-chip microcomputer 15 passes through A/D converter 21 outputing gain control signals to programmable amplifier.The user customizes the receive frequency of present receiving machines 1 by keyboard 18, and passes through the signal sensitivity that gain control handle 19 is regulated present receiving machines 1.
Further, described display unit 16 comprises image display 161, data disaply moudle 162, pointer display module 163, described image display 161, data disaply moudle 162, pointer display module 163 are connected with the output terminal of single-chip microcomputer 15 respectively, and it receives the pipeline field signal by oscillogram, numeral and direction arrow reflection receiver respectively.
The above is preferred embodiment of the present utility model, and the utility model is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present utility model with identical means, all should belong to protection domain of the present utility model.
Claims (2)
1. one kind is descended cable detector accurately, it is characterized in that: formed by receiver (1), described receiver (1) is built-in with the receiving antenna module (11) that connects successively, input tuning circuit (12), programmable amplifier, selective frequency filter circuit, single-chip microcomputer (15), described receiving antenna module (11) comprises the last horizontal coil (110) parallel with surface level and following horizontal coil (111), between last horizontal coil (110) and following horizontal coil (111), be provided with the vertical coil vertical with surface level (112), described input tuning circuit (12) is connected with the output terminal of single-chip microcomputer (15), it receives from one group or two groups of coils selecting to connect receiving antenna module (11) after the control signal of single-chip microcomputer (15), the two paths of signals that forms transfers to programmable amplifier I (131) and programmable amplifier II (132) respectively, give single-chip microcomputer (15) behind selective frequency filter circuit I (141) and the selective frequency filter circuit II (142) and compare processing, the output terminal of described single-chip microcomputer (15) is connected with display unit (16), loudspeaker (17), described receiver (1) also is provided with for input and selects the keyboard (18) of frequency and the gain control handle (19) of control programmable amplifier gain, described keyboard (18) and gain control handle (19) are connected to the input end of single-chip microcomputer (15) respectively, the output terminal of described single-chip microcomputer (15) controls signal to selective frequency filter circuit by clock module (20) output frequency, and the output terminal of described single-chip microcomputer (15) passes through A/D converter (21) outputing gain control signal to programmable amplifier (13).
2. a kind of cable detector that descends accurately according to claim 1, it is characterized in that: described display unit (16) comprises image display (161), data disaply moudle (162), pointer display module (163), and described image display (161), data disaply moudle (162), pointer display module (163) are connected with the output terminal of single-chip microcomputer (15) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110499 CN203069800U (en) | 2013-03-11 | 2013-03-11 | Underground cable detecting instrument with high precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110499 CN203069800U (en) | 2013-03-11 | 2013-03-11 | Underground cable detecting instrument with high precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203069800U true CN203069800U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320110499 Expired - Fee Related CN203069800U (en) | 2013-03-11 | 2013-03-11 | Underground cable detecting instrument with high precision |
Country Status (1)
| Country | Link |
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| CN (1) | CN203069800U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459805A (en) * | 2014-12-16 | 2015-03-25 | 国家电网公司 | Digital underground pipeline detector |
| CN107817531A (en) * | 2017-09-25 | 2018-03-20 | 西安电子科技大学 | Pipeline instrument receiver loop construction and signal processing method, pipeline instrument receiver |
| CN109781836A (en) * | 2018-12-30 | 2019-05-21 | 上海微波技术研究所（中国电子科技集团公司第五十研究所） | Optical cable and cable sheath failure and route exploration instrument and its operating method |
| CN110266283A (en) * | 2019-07-17 | 2019-09-20 | 安图实验仪器(郑州)有限公司 | The circuit control system for having adjust automatically signal gain |
| CN110297275A (en) * | 2019-06-03 | 2019-10-01 | 南京工业职业技术学院 | A kind of band AGC two-way detection fence sensor |
-
2013
- 2013-03-11 CN CN 201320110499 patent/CN203069800U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459805A (en) * | 2014-12-16 | 2015-03-25 | 国家电网公司 | Digital underground pipeline detector |
| CN104459805B (en) * | 2014-12-16 | 2017-12-19 | 国家电网公司 | Digitally underground pipeline detecting instrument |
| CN107817531A (en) * | 2017-09-25 | 2018-03-20 | 西安电子科技大学 | Pipeline instrument receiver loop construction and signal processing method, pipeline instrument receiver |
| CN109781836A (en) * | 2018-12-30 | 2019-05-21 | 上海微波技术研究所（中国电子科技集团公司第五十研究所） | Optical cable and cable sheath failure and route exploration instrument and its operating method |
| CN110297275A (en) * | 2019-06-03 | 2019-10-01 | 南京工业职业技术学院 | A kind of band AGC two-way detection fence sensor |
| CN110297275B (en) * | 2019-06-03 | 2020-09-25 | 南京工业职业技术学院 | Take AGC double-circuit to detect electronic fence sensor |
| CN110266283A (en) * | 2019-07-17 | 2019-09-20 | 安图实验仪器(郑州)有限公司 | The circuit control system for having adjust automatically signal gain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20190311 |
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| CF01 | Termination of patent right due to non-payment of annual fee |