CN105157847B - A kind of online accurate temp measuring method of power equipment and temp measuring system - Google Patents
A kind of online accurate temp measuring method of power equipment and temp measuring system Download PDFInfo
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- CN105157847B CN105157847B CN201510401476.0A CN201510401476A CN105157847B CN 105157847 B CN105157847 B CN 105157847B CN 201510401476 A CN201510401476 A CN 201510401476A CN 105157847 B CN105157847 B CN 105157847B
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000003331 infrared imaging Methods 0.000 claims abstract description 11
- 230000007613 environmental effect Effects 0.000 claims abstract description 7
- 230000017525 heat dissipation Effects 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims 1
- 238000009529 body temperature measurement Methods 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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Abstract
The invention discloses a kind of online accurate temp measuring method of power equipment and and temp measuring system, it measures the temperature of power equipment using online infrared imaging temperature measuring instrument, and temperature, wind speed and humidity sensor are installed near power equipment, environmental condition is normalized；Current caused hot type equipment converts the temperature measured under low temperature to the temperature that temperature is 20 DEG C, while heat dissipation caused by wind speed is influenced to convert.In real time according to current environment climatic condition amendment can be normalized to the temperature measurement data of power equipment, reducing is influenced by amblent air temperature factor, is achieved the purpose that the accurate thermometric of power equipment key position in the present invention.
Description
Technical field
The present invention relates to a kind of power equipment temp measuring method and system, especially a kind of online accurate thermometric of power equipment
Method and temp measuring system.
Background technology
Existing power equipment infrared measurement of temperature mainly has following manner：1st, using handheld thermometer；2nd, using intelligent machine
Device people；3rd, online monitoring.Handheld thermometer, personnel specialty of being taken pictures quality, environmental influence are serious, and cannot be real
When monitoring electrical equipment operating status, temperature measurement data can not really reflect state of the equipment under certain environmental conditions；Intelligent machine
Device people's thermometric is not only influenced by amblent air temperature, while wants accurate positioning equipment detection position there is also problems；It is current to close both at home and abroad
Carrying out, but thermometric mode is rough in the monitoring of online infrared measurement of temperature, the accurate thermometric of power equipment key position is not achieved
Purpose.And these temperature sensing means are confined to thermal map candid photograph, ex-post analysis or the thermometric for being confined to same picture fixed quantity more
Object thermometric.
Invention content
The technical problems to be solved by the invention are that provide a kind of reduction is influenced by amblent air temperature factor, and realization regards in real time
The thermometric and observed temperature of frequency full frame can reflect the online accurate temp measuring method of the power equipment of the true operating status of equipment and
Temp measuring system, so as to overcome above-mentioned the deficiencies in the prior art.
In order to solve the above technical problems, technical scheme is as follows：
A kind of online accurate temp measuring method of power equipment, this method set electric power using online infrared imaging temperature measuring instrument
Standby temperature measures, and temperature, wind speed and humidity sensor are installed near power equipment, and normalizing is carried out to environmental condition
Change is handled；The temperature measured under low temperature is converted to temperature and is 20 DEG C of temperature, while wind speed is drawn by current caused hot type equipment
The heat dissipation influence risen is converted, and formula is as follows：T20=β TS+(20–T0)/α2, wherein：T20Connect for conversion to equipment at 20 DEG C
Connection point super heat temp (DEG C), TSApparatus overheat point temperature (DEG C), T during for test0Environment temperature (DEG C), α are rolled over for temperature during for test
Coefficient is calculated, β is wind speed conversion factor.
A kind of online accurate temp measuring system of power equipment, the composition of the system include online infrared imaging temperature measuring instrument,
A/D converter and monitoring computer, online infrared imaging temperature measuring instrument are used for the power equipment infrared chart of shot detection point, and
Output includes the relevant infrared chart analog signal of infrared chart of measured temperature；A/D converter is used for will be online red
The infrared chart analog signal of outer image-forming temperature measurement instrument output is transformed to infrared digital signal and is transmitted to monitoring computer；It is online red
Outer image-forming temperature measurement instrument connects A/D converter, and A/D converter is connected with monitoring computer；Pacify near the power equipment of test point
Equipped with temperature sensors of high precision, air velocity transducer and humidity sensor, environmental condition is normalized.
In the online accurate temp measuring system of above-mentioned power equipment, online infrared imaging temperature measuring instrument is pan and tilt head binocular
Video camera, there are one visible channel and an infrared channels, can shoot the infrared chart of power equipment and visible ray figure simultaneously
Picture.
Beneficial effects of the present invention：Compared with prior art, the present invention realizes current infrared measurement of temperature and can only be confined to
The technological break-through of the temperature measuring point of quantity or the thermal map analysis of single point in time is limited, it can be right in real time according to current environment climatic condition
Amendment is normalized in the temperature measurement data of power equipment, and reducing is influenced by amblent air temperature factor, reaches to power equipment key portion
The purpose of the accurate thermometric in position, and the thermometric analysis expert of real-time video full frame is realized, it is the real-time prison of status of electric power
The effective technical support of video consultation offer and technological break-through are shared in control, Real Time Expert analysis.
Description of the drawings
Fig. 1 is the structural principle block diagram of the present invention；
Fig. 2 is the operation principle schematic diagram of the present invention.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Specific embodiment
Embodiment 1.As shown in Figure 1, including online infrared imaging temperature measuring instrument, A/D converter and monitoring computer, online
Formula infrared imaging temperature measuring instrument is used for the power equipment infrared chart of shot detection point, and exports and include the infrared of measured temperature
The relevant infrared chart analog signal of thermal map；A/D converter is used for the infrared chart for exporting online infrared imaging temperature measuring instrument
Analog signal is transformed to infrared digital signal and is transmitted to monitoring computer；Online infrared imaging temperature measuring instrument connects A/D converter,
A/D converter is connected with monitoring computer；Temperature sensors of high precision is installed near the power equipment of test point, wind speed passes
Sensor and humidity sensor, are normalized environmental condition.For current caused hot type equipment, can will be measured under low temperature
Temperature to convert to temperature be 20 DEG C of temperature, while heat dissipation caused by wind speed is influenced to convert, formula is as follows：T20=β
TS+(20–T0)/α2, wherein：T20For conversion to equipment tie point overtemperature (DEG C), T at 20 DEG CSApparatus overheat point during for test
Temperature (DEG C), T0Environment temperature (DEG C) during for test, α are temperature conversion factor, and β is wind speed conversion factor.It is online it is infrared into
For picture temperature measurer using pan and tilt head binocular camera, there are one visible channel and an infrared channels, can shoot electric power simultaneously
The infrared chart and visible images of equipment.
Operation principle：As shown in Fig. 2, online infrared imaging temperature measuring instrument 1 is during infrared video code stream 2 is transmitted,
Carry full video temperature measurement data 3 simultaneously, realize on real-time video can to electric device maintenance position into the analysis of line temperature, etc.
Temperature analysis, temperature gradient distributional analysis and maximum continuous loading heat spot temperature analysis, can also be by temperature measurement data and video
Data carry out video recording storage together, pass through the line temperature analysis at video recording progress electric device maintenance position, isothermal analysis, temperature field ladder
Spend distributional analysis and maximum continuous loading heat spot temperature analysis.
Claims (1)
1. a kind of online accurate temp measuring method of power equipment, it is characterised in that：Using online infrared imaging temperature measuring instrument to electricity
The temperature of power equipment measures, and temperature, wind speed and humidity sensor are installed near power equipment, and environmental condition is carried out
Normalized；Current caused hot type equipment converts the temperature measured under low temperature to the temperature that temperature is 20 DEG C, while to wind
Heat dissipation caused by fast influences to be converted, and formula is as follows：T20=βTS + (20–T0)/α2, wherein：T20It is set during to convert to 20 DEG C
Standby tie point overtemperature, TSApparatus overheat point temperature during for test, T0For test when environment temperature, α be temperature conversion factor, β
For wind speed conversion factor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510401476.0A CN105157847B (en) | 2015-07-10 | 2015-07-10 | A kind of online accurate temp measuring method of power equipment and temp measuring system |
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| CN201510401476.0A CN105157847B (en) | 2015-07-10 | 2015-07-10 | A kind of online accurate temp measuring method of power equipment and temp measuring system |
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| CN105157847A CN105157847A (en) | 2015-12-16 |
| CN105157847B true CN105157847B (en) | 2018-06-22 |
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| CN201510401476.0A Active CN105157847B (en) | 2015-07-10 | 2015-07-10 | A kind of online accurate temp measuring method of power equipment and temp measuring system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110530432A (en) * | 2019-09-30 | 2019-12-03 | 国网山东省电力公司电力科学研究院 | A kind of grid equipment electrification detection system, thermal infrared imager and method |
| US11953379B2 (en) * | 2019-09-30 | 2024-04-09 | State Grid Shandong Electric Power Research Institute | Live detection system, method, and thermal infrared imager for power grid equipment |
| CN111506093A (en) * | 2020-04-09 | 2020-08-07 | 陕西省地方电力(集团)有限公司延安供电分公司 | A system and method for power inspection based on unmanned aerial vehicle |
| CN111631597A (en) * | 2020-06-18 | 2020-09-08 | 广东美的厨房电器制造有限公司 | Cooking appliance, control method and computer-readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721479A (en) * | 2012-04-16 | 2012-10-10 | 沈阳华岩电力技术有限公司 | Online monitoring method for temperature rise of outdoor electrical device |
| CN203337262U (en) * | 2013-05-31 | 2013-12-11 | 韩忠健 | On-line imaging temperature measurement and detection system based on infrared technology |
| CN203519173U (en) * | 2013-04-12 | 2014-04-02 | 天津瑞能电气有限公司 | Automatic recording device for temperature data of wind power frequency converter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02159581A (en) * | 1988-12-13 | 1990-06-19 | Tokyo Electric Power Co Inc:The | Method for determining insulation deterioration of insulators |
| JPH11272343A (en) * | 1998-03-19 | 1999-10-08 | Toshiba Corp | Isothermal performance inspecting device/method for stabilized power source |
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2015
- 2015-07-10 CN CN201510401476.0A patent/CN105157847B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721479A (en) * | 2012-04-16 | 2012-10-10 | 沈阳华岩电力技术有限公司 | Online monitoring method for temperature rise of outdoor electrical device |
| CN203519173U (en) * | 2013-04-12 | 2014-04-02 | 天津瑞能电气有限公司 | Automatic recording device for temperature data of wind power frequency converter |
| CN203337262U (en) * | 2013-05-31 | 2013-12-11 | 韩忠健 | On-line imaging temperature measurement and detection system based on infrared technology |
Non-Patent Citations (1)
| Title |
|---|
| 影响电力设备红外检测准确性因素的分析研究;马继先等;《华北电力技术》;20121231(第8期);第55~60页 * |
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