CN207181713U - A kind of grounded screen mesh topology detection device based on array matrix distribution - Google Patents
A kind of grounded screen mesh topology detection device based on array matrix distribution Download PDFInfo
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- CN207181713U CN207181713U CN201721600925.5U CN201721600925U CN207181713U CN 207181713 U CN207181713 U CN 207181713U CN 201721600925 U CN201721600925 U CN 201721600925U CN 207181713 U CN207181713 U CN 207181713U
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- detection device
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Abstract
It the utility model is related to a kind of grounded screen mesh topology detection device based on array matrix distribution, receiving coil, transmitter module, receiving module, coil handover module and the power supply arranged under transmitting coil, Genter loop mode including array matrix-type arrangement with launching the array matrix-type to match, transmitter module connects transmitting coil, receiving module connects receiving coil, and coil handover module is according to receiving coil and transmitting coil corresponding to sequential while switching.Time-consuming when the purpose of this utility model is to solve the problems, such as coil device measurement grounded screen mesh topology small using transient electromagnetic, can improve 10 times or so of detection efficient.
Description
Technical field
A kind of grounded screen mesh topology detection device based on array matrix distribution is the utility model is related to, is applied to
Using transient electromagnetic method detection grounded screen mesh topology field.
Background technology
Grounded screen is to safeguard important the setting of power system security reliability service, guarantee operations staff and electrical equipment safety
It is standby.Because grounding grids material is mainly band steel, underground is embedded in throughout the year, corrosion-vulnerable attenuates or even is broken, so as to jeopardize electricity
The normal operation of Force system and the safety of staff.In recent years during Operation of Electric Systems, transformer station is because its grounded screen
Accident cause device damage power failure situation frequency have generation, it is up to several as the causality loss caused by ground networks failure
Hundred million yuan, therefore the ground connection performance for grasping ground networks is significant.But transmission transformer station earlier is built for some, by
Some reasons such as it is not inconsistent in the loss of firsthand information and work progress and drawing, the specific network topology of its grounded screen can not be learnt
Structure, grounding grids position just can not be accurately searched, this is all caused for the fault diagnosis and regular maintenance of grounded screen
Certain difficulty.So in the case where not influenceing transmission transformer station normal operation, its network topology structure is accurately detected
Periodic maintenance for follow-up fault diagnosis and transformer station grounding network, which all has, to be of great significance.
Electromagnetic prospecting is a kind of conventional geophysical method, mainly including transient electromagnetic method, frequency domain electromagnetic methods, spy
Ground radar method.Electromagnetic exploration is widely used in the fields such as geologic prospect, groundwater exploration, Detecting and surveying underground pipelines and cables in city at present.
Such method is also applied in the detection of grounded screen in recent years.
Chinese patent CN201210116045.6 discloses a kind of grounding net of transformer substation conductor position and network detection
Method, this method intervene sine-wave current source between lead under two ground connection of grounded screen, magnetic induction intensity are measured in earth's surface, according to
Peak coordinate is counter to push away ground connection web frame.
Chinese patent CN201220167792.8 discloses a kind of grounding net of transformer substation conductor position and network detection
System, part occurs by detectable signal for it and signal detection part forms, and the detectable signal generating unit is divided into electric current constant-current source,
Current source uses sine wave working method, and its signal output is terminated between twice guide bodies of grounded screen；The signal detection
Part includes search coil L, circuit, signal processing circuit and acquisition analysis system C, the search coil L occur for ranging burst
Signal output termination signal processing circuit input, signal processing circuit output termination acquisition analysis system input
End, the triggering input of the output termination data collecting card of ranging burst.
Chinese patent CN201410069150.8 discloses a kind of grounded screen breaking point diagnosis method of transient electromagnetic method, the party
Method application transient electromagnetic detection device is detected in grounded screen overhead surface, the induced voltage data that measurement obtains is carried out anti-
Drill to obtain apparent resistivity section diagram, the breakpoint situation of grounded screen is judged with this.
Chinese patent CN201510418318.6 discloses a kind of grounded screen breakpoint based on transient electromagnetic exception ring principle
Grounded screen is considered as abnormal coil by diagnostic method, this method, according to test position is intended to, measured zone is determined, using Genter loop
Device is detected, directly by judging that induced voltage form judges breakpoint location.
Approach described above is all to apply electromagnetic exploration grounded screen, and the method for Injection Current needs to rely on the lower lead of ground connection
Position；The detection method of transient electromagnetic does not provide to the size of measuring coil, and uses small coil to exist when measuring and survey
The problems such as point is more, time of measuring length, and workload is big.
The content of the invention
The purpose of this utility model is solve using the small coil device measurement grounded screen mesh topology of transient electromagnetic
When the problem of time-consuming, and provide a kind of grounded screen mesh topology detection device based on array matrix distribution.
The utility model is realized by the following technical solutions：
A kind of grounded screen mesh topology detection device based on array matrix distribution, including array matrix-type arrangement
Transmitting coil；The receiving coil arranged under Genter loop mode with launching the array matrix-type to match；To transmitter module and connect
Receive the coil handover module that module switches over；Connect the transmitter module of transmitting coil；Connect the receiving module of receiving coil；Line
Handover module is enclosed according to receiving coil and transmitting coil corresponding to sequential while switching.
Further：Transmitting coil is arranged using array matrix-type, the size of each transmitting coil, the number of turn, winding mode,
The material all same of line, and arranged by the way of half mulching, 3/4 covering or more than half mulching.
Further：Under Genter loop mode, receiving coil takes array square according to the position of corresponding transmitting coil
Configuration is arranged, size, the number of turn, winding mode, the material all same of line of same each receiving coil.
Further：For the size selection of transmitting coil less than 1m, the size of receiving coil is less than transmitting coil.
Further：Transmitter module is using STM32 types single-chip microcomputer connection H types transmitting bridge control bipolarity emission current
Produce.
Further：Receiving module includes acquisition module, control module, controlling machine box and computer display screen, acquisition module
Analog-to-digital conversion is carried out after being connected with the receiving coil, the control module is in controlling machine box, and acquisition module passes through control
Cabinet is connected to control module, and control module realizes man-machine interaction and visualizes and shown by the computer display screen of connection
Show.
Further：Coil handover module according to sequential, cut corresponding to switching simultaneously by receiving coil and transmitting coil, coil
Block is changed the mold by the chip microcontroller SECO, coil handover module includes one drive circuit and is connected with monolithic section, drives
Dynamic circuit connects 2 IGBT, 2 IGBT connect respectively an indicator lamp reconnect corresponding to transmitting coil and corresponding reception line
Circle.
Compared with prior art, beneficial effect is the utility model：For the sizing grid and buried depth of grounded screen, use
Small coil detection grounded screen less than 1m, it can accurately reflect the network topology knot of grounding grids position and grounded screen
Structure；Using the coil configuration mode of array matrix-type, between corresponding transmitting realizes that synchronous, different transmitting receives between receiving
Acquisition tasks are sequentially completed according to SECO, reduces the number moved in actual detection a little, saves the time.Solves use
The problem of time-consuming during transient electromagnetic small coil device measurement grounded screen mesh topology, can improve 10 times of left sides of detection efficient
It is right.
Brief description of the drawings
Fig. 1 is circuit module block diagram of the present utility model；
Fig. 2 is coil configuration schematic diagram,（a）Matrix arrangement is displayed for transmitting coil,（b）Centered on wire returning structure；
Fig. 3 is alternate emission principle assumption diagram.
Embodiment
Refer to shown in Fig. 1：A kind of grounded screen network topology knot based on array matrix distribution provided by the utility model
Structure detection device includes：The transmitting coil of array matrix-type arrangement, under Genter loop mode with launching the array matrix to match
Receiving coil, transmitter module, receiving module, coil handover module and the power supply of formula arrangement, transmitter module connection transmitting coil, connect
Module connection receiving coil is received, coil handover module is according to receiving coil and transmitting coil corresponding to sequential while switching.
Referring to Fig. 2（a）With Fig. 2（b）Transmitting coil is arranged using array matrix-type, the size of each transmitting coil, the number of turn,
The material all same of winding mode, line, and arranged by the way of half mulching or 3/4 covering or more than half mulching.
Under Genter loop mode, receiving coil takes array matrix-type to arrange according to the position of corresponding transmitting coil,
Size, the number of turn, winding mode, the material all same of line of same each receiving coil.
For the size selection of transmitting coil less than 1m, the size of receiving coil is less than transmitting coil.
Transmitter module controls the generation of bipolarity emission current using STM32 types single-chip microcomputer connection H types transmitting bridge.
Receiving module includes acquisition module, control module, controlling machine box and computer display screen, is gathered using cRIO-9234
Module carries out analog-to-digital conversion, controlling machine box selection cRIO-9111, and acquisition module is connected to control by the interface in controlling machine box
In module, control module selection cRIO-9025, man-machine interaction and visualization are realized, and connect computer display screen and shown.
Transmitter module and receiving module are opened simultaneously by host computer, after every group of coil transmissions finish receiving, delay time,
The storage of data is completed, and changes subsequent point data name automatically.
Coil handover module is responsible for according to receiving coil and transmitting coil, coil handover module corresponding to sequential while switching
SECO is realized by 4 TIM of single-chip microcomputer, a TIM is as total control signal, which TIM of control selections, and in addition 3
Individual TIM has an I/O port to select to control as I/O port, and remaining each I/O port connects a drive circuit, drive circuit connection 2
Connect respectively indicator lamp of individual IGBT, 2 IGBT reconnects transmitting coil and corresponding receiving coil.Corresponding each reception line
Circle is provided with indicator lamp, and IGBT is FF300R12KS4 modules.It is shown in Figure 3, it is alternate emission principle assumption diagram, it is more
The individual corresponding multiple transmitting coils of switch, the controlling switch under the control of single-chip microcomputer.
During work:Transmitting coil is opened simultaneously with receiving coil, connects the circuit turn-on of first transmitting coil, corresponding
First receiving coil conducting, first group of indicator lamp is bright, and other coils are all off, and transmitting is synchronous with reception, when first group of line
After circle transmitting finishes receiving, first group of coil circuit is disconnected, and indicator lamp is closed；Be delayed 2s, completes data storage；Second group of coil
Circuit turn-on carry out that transmitting receives and data storage, other transmitting receiving coil conductings also successively carry out transmitting reception, when
Last group of coil closes system after finishing receiving.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of grounded screen mesh topology detection device based on array matrix distribution, it is characterised in that including array square
The transmitting coil of configuration arrangement；The receiving coil arranged under Genter loop mode with launching the array matrix-type to match；To hair
Penetrate module and coil handover module that receiving module switches over；Connect the transmitter module of transmitting coil；Connect receiving coil
Receiving module；Coil handover module is according to receiving coil and transmitting coil corresponding to sequential while switching.
2. according to the detection device described in claim 1, it is characterised in that：Transmitting coil is arranged using array matrix-type, each
Size, the number of turn, winding mode, the material all same of line of transmitting coil, and using half mulching, 3/4 covering or more than partly covering
The mode of lid is arranged.
3. according to the detection device described in claim 1, it is characterised in that：Under Genter loop mode, receiving coil is according to right
The position for the transmitting coil answered takes array matrix-type to arrange, the size of same each receiving coil, the number of turn, winding mode, line
Material all same.
4. according to the detection device described in claim 1, it is characterised in that：The size selection of transmitting coil receives less than 1m
The size of coil is less than transmitting coil.
5. according to the detection device described in claim 1, it is characterised in that：Transmitter module is using STM32 types single-chip microcomputer connection H types
Transmitting bridge controls the generation of bipolarity emission current.
6. according to the detection device described in claim 1, it is characterised in that：Receiving module includes acquisition module, control module, control
Cabinet and computer display screen processed, acquisition module carry out analog-to-digital conversion after being connected with the receiving coil, the control module is in
In controlling machine box, acquisition module is connected to control module by controlling machine box, and control module realizes man-machine interaction and visualization simultaneously
Shown by the computer display screen of connection.
7. according to the detection device described in claim 5, it is characterised in that：Coil handover module switches correspondingly simultaneously according to sequential
Receiving coil and transmitting coil, coil handover module included by the chip microcontroller SECO, coil handover module
There is one drive circuit to be connected with monolithic section, drive circuit connects 2 IGBT, and connect respectively indicator lamp of 2 IGBT reconnects
Corresponding transmitting coil and corresponding receiving coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721600925.5U CN207181713U (en) | 2017-11-27 | 2017-11-27 | A kind of grounded screen mesh topology detection device based on array matrix distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721600925.5U CN207181713U (en) | 2017-11-27 | 2017-11-27 | A kind of grounded screen mesh topology detection device based on array matrix distribution |
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| Publication Number | Publication Date |
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| CN207181713U true CN207181713U (en) | 2018-04-03 |
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| CN201721600925.5U Expired - Fee Related CN207181713U (en) | 2017-11-27 | 2017-11-27 | A kind of grounded screen mesh topology detection device based on array matrix distribution |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594312A (en) * | 2018-07-30 | 2018-09-28 | 吉林省电力科学研究院有限公司 | A kind of the grounded screen breakpoint detection device and method of arch form solenoid transmission coil |
| CN109507736A (en) * | 2018-12-12 | 2019-03-22 | 吉林大学 | A kind of novel array transient electromagnetic detecting system and detection method |
| CN110161365A (en) * | 2019-06-26 | 2019-08-23 | 国网上海市电力公司 | A kind of Fault Diagnosis for Grounding Grids method and system based on electromagnetic parameter feature |
| CN110346839A (en) * | 2019-07-30 | 2019-10-18 | 海南电网有限责任公司白沙供电局 | A kind of power distribution network shaft tower chassis, pulling plate and chuck detection system and method |
| CN110609330A (en) * | 2019-09-06 | 2019-12-24 | 北京理工大学 | Sparse array real-beam electric scanning rapid imaging system |
| CN112711721A (en) * | 2021-01-08 | 2021-04-27 | 南京中廷网络信息技术有限公司 | Method for accurately positioning ten-thousand network streets |
-
2017
- 2017-11-27 CN CN201721600925.5U patent/CN207181713U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594312A (en) * | 2018-07-30 | 2018-09-28 | 吉林省电力科学研究院有限公司 | A kind of the grounded screen breakpoint detection device and method of arch form solenoid transmission coil |
| CN109507736A (en) * | 2018-12-12 | 2019-03-22 | 吉林大学 | A kind of novel array transient electromagnetic detecting system and detection method |
| CN110161365A (en) * | 2019-06-26 | 2019-08-23 | 国网上海市电力公司 | A kind of Fault Diagnosis for Grounding Grids method and system based on electromagnetic parameter feature |
| CN110161365B (en) * | 2019-06-26 | 2021-03-19 | 国网上海市电力公司 | Grounding grid fault diagnosis method and system based on electromagnetic parameter characteristics |
| CN110346839A (en) * | 2019-07-30 | 2019-10-18 | 海南电网有限责任公司白沙供电局 | A kind of power distribution network shaft tower chassis, pulling plate and chuck detection system and method |
| CN110609330A (en) * | 2019-09-06 | 2019-12-24 | 北京理工大学 | Sparse array real-beam electric scanning rapid imaging system |
| CN110609330B (en) * | 2019-09-06 | 2021-03-26 | 北京理工大学 | Sparse array real-beam electric scanning rapid imaging system |
| CN112711721A (en) * | 2021-01-08 | 2021-04-27 | 南京中廷网络信息技术有限公司 | Method for accurately positioning ten-thousand network streets |
| CN112711721B (en) * | 2021-01-08 | 2024-02-09 | 南京中廷网络信息技术有限公司 | Precise positioning method for ten thousand net streets |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20181127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |