CN103456121A - Satellite-monitored hot spot identification method based on meteorological factor - Google Patents

Satellite-monitored hot spot identification method based on meteorological factor Download PDF

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Publication number
CN103456121A
CN103456121A CN2013104198271A CN201310419827A CN103456121A CN 103456121 A CN103456121 A CN 103456121A CN 2013104198271 A CN2013104198271 A CN 2013104198271A CN 201310419827 A CN201310419827 A CN 201310419827A CN 103456121 A CN103456121 A CN 103456121A
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CN
China
Prior art keywords
satellite
monitoring
fire
transmission line
temperature value
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Pending
Application number
CN2013104198271A
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Chinese (zh)
Inventor
陆佳政
张红先
徐勋建
李波
方针
赵纯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Hunan Electric Power Research Institute
Hunan Xiangdian Test Research Institute Co Ltd
Original Assignee
State Grid Corp of China SGCC
Hunan Electric Power Research Institute
Hunan Xiangdian Test Research Institute Co Ltd
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Publication date
Application filed by State Grid Corp of China SGCC, Hunan Electric Power Research Institute, Hunan Xiangdian Test Research Institute Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN2013104198271A priority Critical patent/CN103456121A/en
Publication of CN103456121A publication Critical patent/CN103456121A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a satellite-monitored hot spot identification method based on a meteorological factor. The satellite-monitored hot spot identification method comprises the following steps of (1) establishing an earth surface normal temperature calculation model, (2) obtaining the meteorological factor of a ground monitoring station, (3) working out the value of earth surface temperature, (4) obtaining the temperature value of a black body of a satellite fire monitoring channel, (5) calculating the temperature differential value, and (6) identifying a satellite-monitored hot spot. If the differential value is large than zero, the hot spot monitored by a satellite is the mountain fire spot of a power transmission line to be detected, and otherwise, identification judgment of the mountain fire spot cannot be based on the hot spot monitored by the satellite. The satellite-monitored hot spot identification method has the advantages that the specific position of a mountain fire scene of the power transmission line can be found out timely and accurately; the operability is strong and the practicability is good; ground real-time meteorological monitoring data and high altitude satellite monitoring data are fully utilized, so that the monitoring reliability is high; a power transmission line maintenance unit can be instructed in site to make mountain fire preventing measures and arrange mountain fire preventing tasks.

Description

A kind of satellite monitoring focus recognition methods based on meteorological factor
Technical field
The invention belongs to the power transmission and distribution technical field, relate in particular to a kind of satellite monitoring focus recognition methods based on meteorological factor that is applicable to the transmission line forest fire monitoring.
Background technology
Along with social progress, the mankind are more and more stronger to electric dependence, but the mountain fire that transmission line of electricity periphery occurs often causes the transmission line of electricity tripping operation, and the stability of electric network composition has been formed to serious threat, and then affect normal power supply, serious harm commercial production and people's lives.
Because transmission line of electricity spreads all over high and steep mountains, the terrain surface specifications complexity, only be difficult to reach the purpose of comprehensive monitoring mountain fire by manual patrol, only have the satellite monitoring of utilization focus, just may realize the monitoring of large tracts of land wide area mountain fire.But the satellite monitoring focus recognition methods based on monitoring earth's surface blackbody radiation temperature commonly used exists the defect that accuracy is not high, easily is subject to the interference of ground cloud layer and earth's surface temperature.
Summary of the invention
The technical problem to be solved in the present invention is: for the defect of prior art, provide a kind of satellite monitoring focus recognition methods based on meteorological factor.Use the method, can be in time, exactly the transmission line of electricity periphery is occurred mountain fire monitored, workable, practicality good.
Technical scheme of the present invention is: a kind of satellite monitoring focus recognition methods based on meteorological factor provided is according to the temperature on average in the meteorological factor of monitoring station, ground and the highest temperature, adopts earth's surface normal temperature computation model to draw earth's surface normal temperature.Obtain the blackbody temperature of satellite fire monitoring passage, and the difference of this blackbody temperature and earth's surface normal temperature.This method usings the size of this difference as the foundation of identification satellite monitoring focus, forms the recognition methods of satellite monitoring focus, and specifically, the method comprises the steps:
(1) build earth's surface normal temperature computation model.Investigate transmission line of electricity periphery mountain fire history to be measured, record transmission line of electricity periphery to be measured and the time of mountain fire, first combustion location coordinates, burnt area and satellite monitoring hot spot data occur over the years collect as historical meteorological factor, use conventional method to utilize collected historical meteorological factor to set up the surface temperature computation model;
(2) obtain the meteorological factor at ground monitoring station.Obtain local temperature on average and the highest temperature in real time from transmission line of electricity to be measured location weather monitoring system;
(3) calculate the surface temperature value.The surface temperature computation model that uses step (1) to build, calculate the surface temperature value in transmission line of electricity periphery radius Ф 3km to be measured;
(4) obtain the blackbody temperature value of satellite fire monitoring passage.Utilize the satellite monitoring hot spot data of step (1) record, use conventional method to obtain the blackbody temperature value of satellite fire monitoring passage;
(5) accounting temperature difference.Calculate the blackbody temperature value of above-mentioned satellite fire monitoring passage and the difference of above-mentioned surface temperature value;
(6) identification satellite monitoring focus.Size according to the difference of the blackbody temperature value of the above-mentioned satellite fire monitoring of step (5) gained passage and above-mentioned surface temperature value, judge whether described satellite monitoring focus is transmission line forest fire fire point to be measured.If described difference is greater than zero, make described satellite monitoring to focus be the identification judgement of transmission line forest fire fire point to be measured, otherwise make this satellite monitoring to focus do not form the identification judgement of transmission line forest fire fire point to be measured.
The invention has the beneficial effects as follows:
1, can find in time, exactly transmission line forest fire spot particular location;
2, workable, practicality good;
3, take full advantage of the real-time weather monitoring in ground and high altitude satellite Monitoring Data, monitor with a high credibility;
4, effectively on-the-spot guidance Maintenance of Electric Transmission Line unit formulates anti-mountain fire measure and disposes anti-mountain fire task, for the safe and stable operation of safeguarding mountain fire electrical network in season occurred frequently, plays vital effect.
Embodiment
Embodiment 1:
(1) investigate transmission line of electricity periphery mountain fire history to be measured, record transmission line of electricity periphery to be measured and the time of mountain fire, first combustion location coordinates, burnt area and satellite monitoring hot spot data occur over the years collect as historical meteorological factor, use conventional method to utilize collected historical meteorological factor to set up the surface temperature computation model;
(2) obtain local temperature on average value and highest temperature value in real time from transmission line of electricity to be measured location weather monitoring system;
(3) the surface temperature computation model that uses step (1) to build, calculate the surface temperature value in transmission line of electricity periphery radius Ф 3km to be measured;
(4) utilize the satellite monitoring hot spot data of step (1) record, use conventional method to obtain the blackbody temperature value of satellite fire monitoring passage;
(5) accounting temperature difference.Calculate the blackbody temperature value of above-mentioned satellite fire monitoring passage and the difference of above-mentioned surface temperature value;
(6) according to the size of the difference of the blackbody temperature value of the above-mentioned satellite fire monitoring of step (5) gained passage and above-mentioned surface temperature value, judge whether described satellite monitoring focus is transmission line forest fire fire point to be measured.Described difference is greater than zero, make described satellite monitoring to focus be the identification judgement of transmission line forest fire fire point to be measured.
Embodiment 2:
Step (1)~(5) are with embodiment 1;
(6) according to the size of the difference of the blackbody temperature value of the above-mentioned satellite fire monitoring of step (5) gained passage and above-mentioned surface temperature value, judge whether described satellite monitoring focus is transmission line forest fire fire point to be measured.Described difference is not more than zero, make this satellite monitoring to focus do not form the identification judgement of transmission line forest fire fire point to be measured.

Claims (1)

1. the satellite monitoring focus recognition methods based on meteorological factor, the method comprises the steps:
(1) build earth's surface normal temperature computation model, investigate transmission line of electricity periphery mountain fire history to be measured, record transmission line of electricity periphery to be measured and the time of mountain fire, first combustion location coordinates, burnt area and satellite monitoring hot spot data occur over the years collect as historical meteorological factor, use conventional method to utilize collected historical meteorological factor to set up the surface temperature computation model;
(2) obtain the meteorological factor at ground monitoring station, from transmission line of electricity to be measured location weather monitoring system, obtain local temperature on average value and highest temperature value in real time;
(3) calculate the surface temperature value, the surface temperature computation model that uses step (1) to build, calculate the surface temperature value in transmission line of electricity periphery radius Ф 3km to be measured;
(4) obtain the blackbody temperature value of satellite fire monitoring passage, utilize the satellite monitoring hot spot data of step (1) record, use conventional method to obtain the blackbody temperature value of satellite fire monitoring passage;
(5) accounting temperature difference, calculate the blackbody temperature value of above-mentioned satellite fire monitoring passage and the difference of above-mentioned surface temperature value;
(6) identification satellite monitoring focus, size according to the difference of the blackbody temperature value of the above-mentioned satellite fire monitoring of step (5) gained passage and above-mentioned surface temperature value, judge whether described satellite monitoring focus is transmission line forest fire fire point to be measured, if described difference is greater than zero, make described satellite monitoring to focus be the identification judgement of transmission line forest fire to be measured fire point, otherwise make this satellite monitoring to focus do not form the identification judgement of transmission line forest fire fire point to be measured.
CN2013104198271A 2013-09-16 2013-09-16 Satellite-monitored hot spot identification method based on meteorological factor Pending CN103456121A (en)

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Application Number Priority Date Filing Date Title
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5670938A (en) * 1991-01-18 1997-09-23 Hochiki Kabushiki Kaisha Fire alarm device
CN201069608Y (en) * 2007-08-03 2008-06-04 湖南省电力公司试验研究院 Transmission line disaster monitoring system
CN102708646A (en) * 2012-06-01 2012-10-03 湖南省电力公司科学研究院 Satellite-monitoring-based fire alarming method for mountain power transmission line

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5670938A (en) * 1991-01-18 1997-09-23 Hochiki Kabushiki Kaisha Fire alarm device
CN201069608Y (en) * 2007-08-03 2008-06-04 湖南省电力公司试验研究院 Transmission line disaster monitoring system
CN102708646A (en) * 2012-06-01 2012-10-03 湖南省电力公司科学研究院 Satellite-monitoring-based fire alarming method for mountain power transmission line

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
朱时阳等: "输电线路走廊山火监测技术研究与应用", 《广西电力》, vol. 36, no. 3, 28 June 2013 (2013-06-28) *
黄妙芬等: "地表温度和地表辐射温度差值分析", 《地球科学进展》, vol. 20, no. 10, 30 October 2005 (2005-10-30) *

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Application publication date: 20131218

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