CN105589020A - Detector and method for power distribution equipment inspection and live detection - Google Patents
Detector and method for power distribution equipment inspection and live detection Download PDFInfo
- Publication number
- CN105589020A CN105589020A CN201610054311.5A CN201610054311A CN105589020A CN 105589020 A CN105589020 A CN 105589020A CN 201610054311 A CN201610054311 A CN 201610054311A CN 105589020 A CN105589020 A CN 105589020A
- Authority
- CN
- China
- Prior art keywords
- thermal image
- signals
- sensor
- unit
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 238000007689 inspection Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 16
- 238000004891 communication Methods 0.000 claims abstract description 42
- 238000004458 analytical method Methods 0.000 claims abstract description 31
- 238000001914 filtration Methods 0.000 claims abstract description 30
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 238000007781 pre-processing Methods 0.000 claims abstract description 13
- 230000000007 visual effect Effects 0.000 claims abstract description 13
- 230000003321 amplification Effects 0.000 claims abstract description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000005070 sampling Methods 0.000 claims description 20
- 230000007547 defect Effects 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000001228 spectrum Methods 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000010183 spectrum analysis Methods 0.000 description 5
- 238000001931 thermography Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1209—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using acoustic measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Radiation Pyrometers (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention provides a detector for power distribution equipment inspection and live detection, which comprises a composite sensor, a preprocessing unit, a thermal image acquisition unit, an atlas analysis unit and an analysis control and communication unit which are connected in sequence; the composite sensor is formed by an ultrasonic sensor, a geoelectric wave sensor and an infrared thermal image sensor, and is used for collecting signals and converting the signals into analog electric signals; the pre-processing unit carries out filtering amplification and denoising processing on the analog electric signal; the thermal image acquisition unit synchronously acquires the processed analog electric signals and forms mixed digital codes according to preset acquisition parameters and signal coding rules; the map analysis unit decodes the mixed digital codes and forms a visual partial discharge positioning thermal image map; the analysis control and communication unit displays the thermal image spectrogram and outputs the thermal image spectrogram to external equipment. By implementing the invention, the detection data of various detection methods can be comprehensively evaluated, the misjudgment rate of the detection result is reduced, the carrying is convenient, and the difficulty of the charged detection work is reduced.
Description
Technical Field
The invention relates to the technical field of power distribution equipment inspection and detection, in particular to a detector and a method for power distribution equipment inspection and live-line detection.
Background
In order to solve the increasing power supply demand and improve the power supply reliability, the power department continuously introduces advanced technologies, strengthens the operation and maintenance and management of the power distribution equipment, and adopts detection methods of ultrasonic waves, ground electric waves, infrared thermal imaging and the like, which become necessary means for inspection and live detection of the power distribution equipment. However, the detector for detecting the insulation of the power distribution equipment is still in a starting stage, and although insulation detection technologies such as an ultrasonic detection method, a ground electric wave detection method, an infrared thermal imaging detection method and the like are generally applied at home and abroad and achieve certain effect, the detection intelligence degree is low, so that the judgment of the insulation level and the operation state of the power distribution equipment is still based on manual experience.
In actual field detection, the three methods for detecting the insulativity and analyzing the state of the power distribution equipment have the following defects: firstly, the detection results of various detectors can only provide single index and threshold value alarm, so that the comprehensive judgment depends on manual experience, and the accuracy and reliability of the detection results cannot be guaranteed; secondly, because various detectors are independently used in the detection process, the detection data cannot be synchronized, and due to the difference of background environments in different time periods, the comparability of various detection data (including ultrasonic partial discharge level, earth electric wave partial discharge level, infrared thermal temperature rise and the like) is poor, so that comprehensive evaluation is difficult to perform, and the detection result is easily misjudged; and thirdly, the detector is carried too much and needs to be operated repeatedly, so that the difficulty of the electrified detection work is increased.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a detector and a method for power distribution equipment inspection and live-line detection, which can comprehensively evaluate detection data of multiple detection methods, reduce the false judgment rate of detection results, are convenient to carry, and reduce the difficulty of live-line detection work.
In order to solve the technical problems, the embodiment of the invention provides a detector for power distribution equipment inspection and live-line detection, which comprises a composite sensor, a preprocessing unit, a thermal image acquisition unit, an atlas analysis unit and an analysis control and communication unit, wherein the composite sensor, the preprocessing unit, the thermal image acquisition unit, the atlas analysis unit and the analysis control and communication unit are sequentially connected; wherein,
the composite sensor is formed by an ultrasonic sensor, a geoelectric wave sensor and an infrared thermal image sensor and is used for acquiring ultrasonic signals, geoelectric signals and infrared thermal image signals generated by power distribution equipment and respectively converting the acquired ultrasonic signals, geoelectric signals and infrared thermal image signals into corresponding analog electric signals;
the preprocessing unit is used for respectively carrying out filtering amplification and denoising processing on the converted analog electric signals;
the thermal image acquisition unit is used for synchronously acquiring the processed plurality of analog electric signals and forming a mixed digital code by the plurality of synchronously acquired analog electric signals according to preset acquisition parameters and signal coding rules;
the map analysis unit is used for decoding the mixed digital code and forming a visual local discharge positioning thermal image map;
and the analysis control and communication unit is used for displaying the thermal image spectrogram and outputting the thermal image spectrogram to external equipment.
The ultrasonic sensor, the earth electric wave sensor and the infrared thermal image sensor in the composite sensor are integrated together through a micro-electro-mechanical system (MEMS) technology.
The sampling amplitude range of the ultrasonic sensor is-20-65 dBmV, and the central frequency is 40 kHz; the sampling amplitude range of the ground electric wave sensor is 0-60 dBmV, and the signal bandwidth is 3-60 MHz; the sampling amplitude range of the infrared thermal image sensor is 0-100 ℃, and the thermal image pixels are 320x240 pixels.
The pre-processing unit comprises a first filtering and amplifying circuit for filtering, amplifying and denoising ultrasonic signals and a second filtering and amplifying circuit for filtering, amplifying and denoising the ground electric signals; wherein,
the first filtering and amplifying circuit is formed by a narrow-band filter with filtering frequency of 40 +/-2 kHz and a signal amplifier with one of power of 60dB, 80dB and 100 dB;
the second filtering and amplifying circuit is formed by a broadband filter with the filtering frequency of 3-60MHz and two stages of signal amplifiers with the power of 20dB and 40dB respectively.
The thermal image acquisition unit is formed by a Field Programmable Gate Array (FPGA).
Wherein, the atlas analysis unit is formed by a Digital Signal Processing (DSP) chip.
The analysis control and communication unit comprises a liquid crystal display module, a wireless communication module and a wired communication module, wherein the liquid crystal display module, the wireless communication module and the wired communication module are used for displaying the thermal image spectrogram; wherein,
the wireless communication module comprises one or more of a GPRS sub-communication module, a Zigbee communication sub-module, a WIFI communication sub-module and a Bluetooth communication sub-module;
the wired communication module comprises one or more of 10/100BASE-T self-adaptive Ethernet sub-module, RS-485 interface sub-module, RS-232 interface sub-module and optical fiber interface sub-module.
The detector also comprises a thermal image coding memory, and the thermal image coding memory is arranged between the thermal image acquisition unit and the atlas analysis unit and is used for storing the mixed digital codes.
The embodiment of the invention also provides a method for power distribution equipment inspection and live detection, which is realized on the detector, and the method comprises the following steps:
collecting ultrasonic signals, geoelectric wave signals and infrared thermal image signals generated by power distribution equipment, and respectively converting the collected ultrasonic signals, geoelectric wave signals and infrared thermal image signals into corresponding analog electric signals;
respectively carrying out filtering amplification and denoising treatment on the converted analog electric signals;
synchronously acquiring the processed plurality of analog electric signals, and forming a mixed digital code by the plurality of synchronously acquired analog electric signals according to preset acquisition parameters and signal coding rules;
decoding the mixed digital code and forming a visual partial discharge positioning thermal image spectrogram; and
and displaying the thermal image spectrogram and outputting the thermal image spectrogram to external equipment.
The local discharge positioning thermal image spectrogram comprises defect position information, defect type information, local discharge state information and insulation information of the power distribution equipment.
The embodiment of the invention has the following beneficial effects:
1. in the embodiment of the invention, as the composite sensor of the detector is integrated with the ultrasonic sensor, the geoelectric wave sensor and the thermal infrared image sensor, the detector is convenient to carry and can be used in multiple purposes, the defect of carrying too many detectors is avoided, and the detection data of various detection methods can be synchronized through the thermal image acquisition unit, so that the detection data can be comprehensively evaluated, the misjudgment rate of detection results is reduced, and the difficulty of live detection work is reduced;
2. in the embodiment of the invention, the spectrum analysis unit of the detector can form a visual thermal image spectrum, and the visual thermal image spectrum can be displayed and output to the external equipment for further analysis through the analysis control and communication unit, so that the intelligent level of detection is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
Fig. 1 is a schematic system structure diagram of a detector for power distribution equipment inspection and live detection according to an embodiment of the present invention;
fig. 2 is a sampling flow chart of an application scene of a thermal image sampling unit in a detector for power distribution equipment inspection and live detection according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for inspection and live detection of power distribution equipment according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, in the embodiment of the present invention, the detector for power distribution equipment inspection and live-line detection includes a composite sensor 1, a pre-processing unit 2, a thermal image acquisition unit 3, a spectrum analysis unit 4, and an analysis control and communication unit 5, which are sequentially connected; wherein,
the composite sensor 1 is formed by an ultrasonic sensor, a geoelectric wave sensor and an infrared thermal image sensor, and is used for acquiring ultrasonic signals, geoelectric signals and infrared thermal image signals generated by power distribution equipment and respectively converting the acquired ultrasonic signals, geoelectric signals and infrared thermal image signals into corresponding analog electric signals;
the pre-processing unit 2 is used for respectively carrying out filtering amplification and denoising processing on the converted analog electric signals;
the thermal image acquisition unit 3 is used for synchronously acquiring the processed plurality of analog electric signals and forming a mixed digital code by the plurality of analog electric signals synchronously acquired through preset acquisition parameters and signal coding rules;
the map analysis unit 4 is used for decoding the mixed digital codes and forming a visual local discharge positioning thermal image map;
and the analysis control and communication unit 5 is used for displaying the thermal image spectrogram and outputting the thermal image spectrogram to external equipment.
In the embodiment of the invention, the composite sensor 1 is formed by an ultrasonic sensor, a geoelectric wave sensor and an infrared thermal image sensor, and the three sensors are integrated together by a Micro Electro Mechanical Systems (MEMS) technology, so that the composite sensor 1 can be integrated with the three sensors in a narrow space. It should be noted that the composite sensor 1 is processed by a special shielding device, so that electromagnetic interference can be suppressed and crosstalk between a plurality of signals can be prevented.
In one embodiment, the composite sensor 1 includes three sensors, an ultrasonic sensor, a geoelectric sensor, and a thermographic infrared sensor; wherein the sampling amplitude range of the ultrasonic sensor is-20-65 dBmV, and the central frequency is 40 kHz; the sampling amplitude range of the ground electric wave sensor is 0-60 dBmV, and the signal bandwidth is 3-60 MHz; the sampling amplitude range of the infrared thermal image sensor is 0-100 ℃, and the thermal image pixels are 320x240 pixels.
In order to resist electromagnetic interference and crosstalk suppression and output high-quality analog electric signals, the pre-processing unit 2 comprises a first filtering and amplifying circuit for filtering, amplifying and denoising ultrasonic signals and a second filtering and amplifying circuit for filtering, amplifying and denoising the ultrasonic signals; wherein,
the first filtering and amplifying circuit is formed by a narrow-band filter with filtering frequency of 40 +/-2 kHz and a signal amplifier with one of power of 60dB, 80dB and 100 dB;
the second filtering and amplifying circuit is formed by a broadband filter with the filtering frequency of 3-60MHz and a two-stage signal amplifier with the power of 20dB and 40dB respectively.
In the embodiment of the invention, the thermal image acquisition unit 3 is formed by a field programmable gate array FPGA which can configure a logic module CLB, an input/output module IOB and internal connecting lines, so that high-speed synchronous acquisition of a plurality of processed analog electric signals is realized, and mixed digital codes are output through preset acquisition parameters and signal coding rules.
In one embodiment, as shown in fig. 2, for the thermal image acquisition unit 3 to apply a sampling flow chart in a scene, in order to acquire different insulation signals synchronously, the thermal image acquisition unit 3 acquires infrared thermal image signals, ultrasonic partial discharge signals, and geoelectric partial discharge signals point by using a high-speed time division synchronous sampling technology.
The red thermal imaging pixel is 320x240=76800, the image frame frequency is 25Hz, and the sampling frequency is 76800x25=1.92 MHz; the sampling center frequency of the ultrasonic partial discharge signal is 40kHz, and the minimum undistorted sampling frequency is 80kHz according to the Nyquist law; the acquisition bandwidth of the local discharge signal of the ground electric wave is usually 3-60MHz, and in order to reduce the volume of the invention, an envelope sampling technology is adopted, and the sampling frequency is 2 MHz.
Therefore, the sampling frequency of the thermal image acquisition unit 3 formed by the FPGA is designed to be 20MHz, and the thermal image acquisition unit is used for high-fidelity synchronous sampling of infrared thermal image signals, ultrasonic partial discharge signals and geoelectric partial discharge signals,
in the embodiment of the invention, the map analysis unit 4 is formed by a digital signal processing DSP chip, and forms a visual partial discharge positioning thermal image map by analyzing information such as defect location information (e.g., specific position of insulation defect), defect type information (e.g., insulation defect type), partial discharge state information (e.g., partial discharge severity), and insulation information (e.g., insulation evaluation) of the power distribution equipment.
In the embodiment of the invention, the analysis control and communication unit 5 comprises a liquid crystal display module, a wireless communication module and a wired communication module which are used for displaying a thermal image spectrogram; wherein,
the wireless communication module comprises one or more of a GPRS sub-communication module, a Zigbee communication sub-module, a WIFI communication sub-module and a Bluetooth communication sub-module;
the wired communication module comprises one or more of 10/100BASE-T self-adaptive Ethernet sub-module, RS-485 interface sub-module, RS-232 interface sub-module and optical fiber interface sub-module.
In the embodiment of the invention, the detector further comprises a thermal image coding memory 6, wherein the thermal image coding memory 6 is arranged between the thermal image acquisition unit 3 and the spectrum analysis unit 4 and is used for storing the mixed digital codes and storing the mixed digital codes frame by frame.
The working principle for power distribution equipment inspection and live detection in the embodiment of the invention is as follows: the composite sensor 1 collects ultrasonic signals, geoelectric wave signals and temperature field distribution signals (obtained by an infrared thermal image sensor) generated by power distribution equipment, respectively converts the collected ultrasonic signals, geoelectric wave signals and temperature field distribution signals into corresponding recognizable analog electric signals, and performs filtering, amplification and denoising processing through the pre-processing unit 2 to form high-quality analog electric signals; performing cross sampling and digital mixed coding on the pre-processed mixed signal through a thermal image acquisition unit 3, and storing the mixed signal by using a thermal image coding memory 6; the stored digital mixed codes are processed and analyzed through the spectrum analysis unit 4 to form a visual local discharge positioning thermal image spectrum; and the analysis control and communication unit 5 is used for displaying data, controlling the acquisition process and carrying out communication transmission on the acquired data and the analysis result.
As shown in fig. 3, in an embodiment of the present invention, a method for inspection and live-line detection of power distribution equipment is provided, which is implemented on the foregoing detector, and the method includes:
s1, collecting ultrasonic signals, geoelectric signals and infrared thermal image signals generated by power distribution equipment, and respectively converting the collected ultrasonic signals, geoelectric signals and infrared thermal image signals into corresponding analog electric signals;
step S2, respectively carrying out filtering amplification and denoising processing on the converted analog electric signals;
step S3, synchronously acquiring the processed plurality of analog electric signals, and forming a mixed digital code by the plurality of synchronously acquired analog electric signals according to preset acquisition parameters and signal coding rules;
s4, decoding the mixed digital code, and forming a visual partial discharge positioning thermal image spectrogram;
and S5, displaying the thermal image spectrogram, and outputting the thermal image spectrogram to external equipment.
The local discharge positioning thermal image spectrogram comprises defect position information, defect type information, local discharge state information and insulation information of the power distribution equipment.
The embodiment of the invention has the following beneficial effects:
1. in the embodiment of the invention, as the composite sensor of the detector is integrated with the ultrasonic sensor, the geoelectric wave sensor and the thermal infrared image sensor, the detector is convenient to carry and can be used in multiple purposes, the defect of carrying too many detectors is avoided, and the detection data of various detection methods can be synchronized through the thermal image acquisition unit, so that the detection data can be comprehensively evaluated, the misjudgment rate of detection results is reduced, and the difficulty of live detection work is reduced;
2. in the embodiment of the invention, the spectrum analysis unit of the detector can form a visual thermal image spectrum, and the visual thermal image spectrum can be displayed and output to the external equipment for further analysis through the analysis control and communication unit, so that the intelligent level of detection is improved.
It will be understood by those skilled in the art that all or part of the steps in the method for implementing the above embodiments may be implemented by relevant hardware instructed by a program, and the program may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. A detector for power distribution equipment inspection and live detection is characterized by comprising a composite sensor (1), a preprocessing unit (2), a thermal image acquisition unit (3), an atlas analysis unit (4) and an analysis control and communication unit (5) which are sequentially connected; wherein,
the composite sensor (1) is formed by an ultrasonic sensor, a geoelectric wave sensor and an infrared thermal image sensor and is used for acquiring ultrasonic signals, geoelectric signals and infrared thermal image signals generated by power distribution equipment and respectively converting the acquired ultrasonic signals, geoelectric signals and infrared thermal image signals into corresponding analog electric signals;
the preprocessing unit (2) is used for respectively carrying out filtering amplification and denoising processing on the converted analog electric signals;
the thermal image acquisition unit (3) is used for synchronously acquiring the processed plurality of analog electric signals and forming a mixed digital code by the plurality of synchronously acquired analog electric signals according to preset acquisition parameters and signal coding rules;
the map analysis unit (4) is used for decoding the mixed digital code and forming a visual local discharge positioning thermal image map;
and the analysis control and communication unit (5) is used for displaying the thermal image spectrogram and outputting the thermal image spectrogram to external equipment.
2. The apparatus according to claim 1, wherein the ultrasonic sensor, the geoelectric sensor and the thermographic infrared sensor of the composite sensor (1) are integrated by MEMS technology.
3. The meter of claim 2, wherein the ultrasonic sensor has a sampling amplitude in the range of-20 to 65dBmV, a center frequency of 40 kHz; the sampling amplitude range of the ground electric wave sensor is 0-60 dBmV, and the signal bandwidth is 3-60 MHz; the sampling amplitude range of the infrared thermal image sensor is 0-100 ℃, and the thermal image pixels are 320x240 pixels.
4. The apparatus according to claim 1, wherein the pre-processing unit (2) comprises a first filter-amplifier circuit for filtering amplification and de-noising of the ultrasonic signals and a second filter-amplifier circuit for filtering amplification and de-noising of the ultrasonic signals; wherein,
the first filtering and amplifying circuit is formed by a narrow-band filter with filtering frequency of 40 +/-2 kHz and a signal amplifier with one of power of 60dB, 80dB and 100 dB;
the second filtering and amplifying circuit is formed by a broadband filter with the filtering frequency of 3-60MHz and two stages of signal amplifiers with the power of 20dB and 40dB respectively.
5. The detector according to claim 1, characterized in that the thermographic acquisition unit (3) is formed by a field programmable gate array FPGA.
6. The detector according to claim 1, characterized in that the profile analysis unit (4) is formed by a digital signal processing DSP chip.
7. The detector according to claim 1, characterized in that said analysis control and communication unit (5) comprises a liquid crystal display module, a wireless communication module and a wired communication module for displaying said thermographic spectrogram; wherein,
the wireless communication module comprises one or more of a GPRS sub-communication module, a Zigbee communication sub-module, a WIFI communication sub-module and a Bluetooth communication sub-module;
the wired communication module comprises one or more of 10/100BASE-T self-adaptive Ethernet sub-module, RS-485 interface sub-module, RS-232 interface sub-module and optical fiber interface sub-module.
8. The detector according to any one of claims 1 to 7, further comprising a thermographic code memory (6), the thermographic code memory (6) being arranged between the thermographic acquisition unit (3) and the atlas analysis unit (4) for storing the hybrid digital code.
9. A method for power distribution equipment inspection and live detection, implemented on a detector comprising any one of claims 1 to 8, the method comprising:
collecting ultrasonic signals, geoelectric wave signals and infrared thermal image signals generated by power distribution equipment, and respectively converting the collected ultrasonic signals, geoelectric wave signals and infrared thermal image signals into corresponding analog electric signals;
respectively carrying out filtering amplification and denoising treatment on the converted analog electric signals;
synchronously acquiring the processed plurality of analog electric signals, and forming a mixed digital code by the plurality of synchronously acquired analog electric signals according to preset acquisition parameters and signal coding rules;
decoding the mixed digital code and forming a visual partial discharge positioning thermal image spectrogram; and
and displaying the thermal image spectrogram and outputting the thermal image spectrogram to external equipment.
10. The method of claim 9, wherein the local discharge positioning thermal image spectrum comprises defect location information, defect type information, local discharge status information, and insulation information of the power distribution equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054311.5A CN105589020B (en) | 2016-01-27 | 2016-01-27 | Detector and method for power distribution equipment inspection and live detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610054311.5A CN105589020B (en) | 2016-01-27 | 2016-01-27 | Detector and method for power distribution equipment inspection and live detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105589020A true CN105589020A (en) | 2016-05-18 |
| CN105589020B CN105589020B (en) | 2019-04-16 |
Family
ID=55928754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610054311.5A Active CN105589020B (en) | 2016-01-27 | 2016-01-27 | Detector and method for power distribution equipment inspection and live detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105589020B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249114A (en) * | 2016-08-23 | 2016-12-21 | 上海华乘智能设备有限公司 | Multifunctional belt electric detection means based on WIFI transmission and method |
| CN106405345A (en) * | 2016-08-23 | 2017-02-15 | 上海局放软件技术有限公司 | Hand-held multi-functional hot-line detection apparatus and integrated detection diagnosis method thereof |
| CN106501651A (en) * | 2016-12-02 | 2017-03-15 | 深圳供电局有限公司 | Multi-sensor power distribution equipment detection device with bus structure |
| CN107544004A (en) * | 2017-06-28 | 2018-01-05 | 温州大学 | A kind of detection means of building body interior insulation electric wire broken skin damage |
| CN108303619A (en) * | 2017-01-13 | 2018-07-20 | 广州佳和立创科技发展有限公司 | A kind of controller switching equipment live detection method and device of Multi-sensor Fusion |
| CN108572030A (en) * | 2017-03-09 | 2018-09-25 | 基思利仪器有限责任公司 | Temperature and thermal map system |
| CN110244204A (en) * | 2019-06-27 | 2019-09-17 | 国网湖南省电力有限公司 | A kind of switchgear method for diagnosing faults, system and the medium of multiple characteristic values |
| CN113023293A (en) * | 2021-02-08 | 2021-06-25 | 精锐视觉智能科技（深圳）有限公司 | Inspection method, device, equipment and system for belt conveyor |
| CN114255522A (en) * | 2021-12-23 | 2022-03-29 | 河南宏博测控技术有限公司 | Multi-functional inspection device convenient to use |
| CN115865043A (en) * | 2022-11-04 | 2023-03-28 | 浙江黑卡电气有限公司 | Dynamic denoising circuit of multi-dimensional signal and processing method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5182513A (en) * | 1991-04-06 | 1993-01-26 | General Electric Company | Method and apparatus for a multi-channel multi-frequency data acquisition system for nondestructive eddy current inspection testing |
| CN202661585U (en) * | 2012-05-09 | 2013-01-09 | 广东电网公司佛山供电局 | Insulation state test system for insulation copper tube bus-bar |
| KR101235777B1 (en) * | 2011-09-26 | 2013-02-21 | 유성훈 | Artificial intelligent utilization on judgement diagnostic system for electrical power ficilities using comples diagnosis eqipment |
| CN103499776A (en) * | 2013-09-03 | 2014-01-08 | 华北电力大学（保定） | Power transmission and transformation equipment fault routing inspection core system based on ultrasonic waves and infrared thermal images |
| CN103675532A (en) * | 2013-11-30 | 2014-03-26 | 国网河南省电力公司南阳供电公司 | GIS (gas insulated switchgear) fault diagnosis device and GIS fault diagnosis method |
| CN104198896A (en) * | 2013-12-05 | 2014-12-10 | 国家电网公司 | Comprehensive monitoring device and comprehensive monitoring method for partial discharge of oil immersed transformer |
| CN104569763A (en) * | 2015-01-06 | 2015-04-29 | 国家电网公司 | Multi-means-integrated charged detection system for combined electric appliance |
| CN104865511A (en) * | 2015-06-23 | 2015-08-26 | 国家电网公司 | Partial discharge detection device |
| CN105021958A (en) * | 2014-07-27 | 2015-11-04 | 国家电网公司 | Switch cabinet partial discharge data recording and analyzing method based on multi-sensor detection |
| CN105021957A (en) * | 2015-08-03 | 2015-11-04 | 西南石油大学 | Power cable accessory fault identification method and system |
-
2016
- 2016-01-27 CN CN201610054311.5A patent/CN105589020B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5182513A (en) * | 1991-04-06 | 1993-01-26 | General Electric Company | Method and apparatus for a multi-channel multi-frequency data acquisition system for nondestructive eddy current inspection testing |
| KR101235777B1 (en) * | 2011-09-26 | 2013-02-21 | 유성훈 | Artificial intelligent utilization on judgement diagnostic system for electrical power ficilities using comples diagnosis eqipment |
| CN202661585U (en) * | 2012-05-09 | 2013-01-09 | 广东电网公司佛山供电局 | Insulation state test system for insulation copper tube bus-bar |
| CN103499776A (en) * | 2013-09-03 | 2014-01-08 | 华北电力大学（保定） | Power transmission and transformation equipment fault routing inspection core system based on ultrasonic waves and infrared thermal images |
| CN103675532A (en) * | 2013-11-30 | 2014-03-26 | 国网河南省电力公司南阳供电公司 | GIS (gas insulated switchgear) fault diagnosis device and GIS fault diagnosis method |
| CN104198896A (en) * | 2013-12-05 | 2014-12-10 | 国家电网公司 | Comprehensive monitoring device and comprehensive monitoring method for partial discharge of oil immersed transformer |
| CN105021958A (en) * | 2014-07-27 | 2015-11-04 | 国家电网公司 | Switch cabinet partial discharge data recording and analyzing method based on multi-sensor detection |
| CN104569763A (en) * | 2015-01-06 | 2015-04-29 | 国家电网公司 | Multi-means-integrated charged detection system for combined electric appliance |
| CN104865511A (en) * | 2015-06-23 | 2015-08-26 | 国家电网公司 | Partial discharge detection device |
| CN105021957A (en) * | 2015-08-03 | 2015-11-04 | 西南石油大学 | Power cable accessory fault identification method and system |
Non-Patent Citations (3)
| Title |
|---|
| 徐成龙 等: "基于局部放电图谱和X射线图像的GIS缺陷识别技术", 《电气应用》 * |
| 杨计强: "开关柜带电监测技术应用实例", 《新疆电力技术》 * |
| 金立军 等: "基于图像处理技术的电力设备局部放电紫外成像检测", 《电力系统保护与控制》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249114A (en) * | 2016-08-23 | 2016-12-21 | 上海华乘智能设备有限公司 | Multifunctional belt electric detection means based on WIFI transmission and method |
| CN106405345A (en) * | 2016-08-23 | 2017-02-15 | 上海局放软件技术有限公司 | Hand-held multi-functional hot-line detection apparatus and integrated detection diagnosis method thereof |
| CN106501651A (en) * | 2016-12-02 | 2017-03-15 | 深圳供电局有限公司 | Multi-sensor power distribution equipment detection device with bus structure |
| CN108303619A (en) * | 2017-01-13 | 2018-07-20 | 广州佳和立创科技发展有限公司 | A kind of controller switching equipment live detection method and device of Multi-sensor Fusion |
| CN108572030A (en) * | 2017-03-09 | 2018-09-25 | 基思利仪器有限责任公司 | Temperature and thermal map system |
| CN108572030B (en) * | 2017-03-09 | 2024-03-26 | 基思利仪器有限责任公司 | Temperature and heat map system |
| CN107544004A (en) * | 2017-06-28 | 2018-01-05 | 温州大学 | A kind of detection means of building body interior insulation electric wire broken skin damage |
| CN107544004B (en) * | 2017-06-28 | 2019-06-28 | 温州大学 | A kind of detection device of building body interior insulation electric wire broken skin damage |
| CN110244204A (en) * | 2019-06-27 | 2019-09-17 | 国网湖南省电力有限公司 | A kind of switchgear method for diagnosing faults, system and the medium of multiple characteristic values |
| CN113023293A (en) * | 2021-02-08 | 2021-06-25 | 精锐视觉智能科技（深圳）有限公司 | Inspection method, device, equipment and system for belt conveyor |
| CN114255522A (en) * | 2021-12-23 | 2022-03-29 | 河南宏博测控技术有限公司 | Multi-functional inspection device convenient to use |
| CN115865043A (en) * | 2022-11-04 | 2023-03-28 | 浙江黑卡电气有限公司 | Dynamic denoising circuit of multi-dimensional signal and processing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105589020B (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105589020B (en) | Detector and method for power distribution equipment inspection and live detection | |
| CN104346626A (en) | SF6 gas leakage online mode recognition method based on image recognition | |
| WO2016042675A1 (en) | Partial discharge measurement device, partial discharge measurement method, and program | |
| CN111277833A (en) | Multi-passband filter-based multi-target micro-vibration video amplification method | |
| CN113140229A (en) | Sound detection method based on neural network, industrial acoustic detection system and method | |
| US10928436B2 (en) | Evaluation of phase-resolved partial discharge | |
| CN106405349A (en) | Method and system of intrusion ultra high frequency and ultrasonic detection of partial discharge in transformer oil | |
| CN108937905A (en) | A kind of contactless heart rate detection method based on signal fitting | |
| CN110367961A (en) | Blood pressure data processing method, device, equipment and readable storage medium storing program for executing | |
| CN103606348A (en) | Fault detection device and method for displayer of video player | |
| CN114742096A (en) | Intrusion alarm method and system based on vibration optical fiber detection and complete action extraction | |
| CN109259748B (en) | System and method for extracting heart rate signal by processing face video through mobile phone | |
| CN103051829B (en) | Raw image data noise reduction system based on FPGA platform and noise-reduction method | |
| CN211453973U (en) | Natural source surface wave acquisition system based on virtual instrument | |
| CN115077722B (en) | Partial discharge and temperature comprehensive monitoring system and method applied to high-voltage cabinet | |
| CN106501651A (en) | Multi-sensor power distribution equipment detection device with bus structure | |
| CN105425126A (en) | Separation method for multiple partial discharge sources and conditioning device for three frequency centers | |
| CN110780162A (en) | Method for extracting partial discharge signal of primary and secondary fusion power distribution switch and detection device | |
| CN115980529A (en) | Partial discharge acoustic imaging detection positioning method, system and computer storage medium | |
| CN106375042B (en) | Short signal method for catching based on DPX and its system | |
| KR101616790B1 (en) | Sensor system and signal separation method for separating pir sensor signal into the person moving signal and the background noise signal | |
| JPWO2015059782A1 (en) | Video inspection method and audio inspection method | |
| CN108257364B (en) | Method for improving alarm reliability of distributed optical fiber monitoring system | |
| CN116973712A (en) | Partial discharge ultrahigh frequency signal fault diagnosis method | |
| CN214375023U (en) | Train electromagnetic radiation's measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |