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Accurate early warning method for transmission line mountain fire

A technology for transmission lines and wildfires, applied in the field of accurate early warning of wildfires in transmission lines, can solve problems such as difficulties in accurately identifying wildfires, defects in the judgment of wildfire spread, and missed reports.

Active Publication Date: 2015-04-01
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

The literature "Flashover characteristics of vertical-type model power line in the presence of combustion flash" uses satellite remote sensing to monitor forest fires, which can reflect the local spatial distribution and detailed characteristics of fires, and studies the polar orbiting meteorological satellites in the transmission line The application in mountain fire monitoring, but the satellite-based monitoring system has shortcomings such as poor real-time performance, missing and false alarms, and defects in judging the spread of small-scale mountain fires, which brings certain difficulties to accurate identification of mountain fires

Method used

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  • Accurate early warning method for transmission line mountain fire
  • Accurate early warning method for transmission line mountain fire
  • Accurate early warning method for transmission line mountain fire

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Embodiment Construction

[0059] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0060] like figure 1 As shown, a method for accurate early warning of mountain fires on transmission lines includes the following four steps:

[0061] S1: Collect fire point information.

[0062] The current technology is used to collect fire point information, HJ-1B satellite data or remote sensing identification technology. The normal temperature of the surface is about 300K, and the flame temperature of forest fire can reach about 1000K. According to the Stefan-Boltzmann law and the Wien displacement law, as long as there is a small change in the temperature of the black body, the total amount of radiation is proportional to the fourth power of the temperature, which will cause a large change in the radiation, and the flame will be at a high temperature. The temperature of the heat source will cause a sharp change in radia...

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Abstract

The invention discloses an accurate early warning method for transmission line mountain fire. The method comprises four steps: collecting fire point information, performing wind speed signal decomposition, performing signal denoising and performing early warning on the transmission line mountain fire. The out-dated manual monitoring and early warning mode is changed by the accurate early warning method disclosed by the invention; the accurate early warning method has the characteristics that the calculation is convenient, the effect is remarkable, and the like, and is suitable for predicting and warning the transmission line mountain fire at different altitudes and in different regions; according to the accurate early warning method provided by the invention, help is provided for performing scientific and accurate early warning on the transmission line mountain fire; at the initial stage of mountain fire information, targeted action can be achieved, and line loss caused by blind prediction and warning is avoided.

Description

technical field [0001] The invention belongs to a method for accurate early warning of mountain fires in power transmission lines in the electric power engineering technology. Background technique [0002] In recent years, with the development of power resources, more and more transmission lines have passed through high mountains and steep mountains. The unique topography and climatic conditions in these areas can easily cause wildfires, which may cause tripping of transmission lines in the slightest and cause burning in severe cases. Iron towers, causing long-term unrecoverable major power accidents. Mountain fires are one of the main factors that cause transmission line trips. With the continuous expansion of the power grid scale and the frequent occurrence of extreme droughts in recent years, mountain fires have become one of the important factors that endanger the safe and stable operation of the power grid. According to the incomplete statistical data of the periodical...

Claims

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Application Information

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IPC IPC(8): G06Q50/06G06Q10/04
CPCG06Q10/04G06Q50/06
Inventor 沈鑫闫永梅曹敏马红升王昕张林山丁心志
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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