Power transmission line vegetation fire monitoring and early warning method based on geostationary satellite monitoring data

Abstract

The invention provides a power transmission line vegetation fire monitoring and early warning method based on geostationary satellite monitoring data. The method includes the steps that land cover types corresponding to the pixels of a landform picture are determined, and the weights of power transmission line units are calculated; the atmospheric profile of a monitoring area during monitoring isdetermined in real time; ground brightness temperature values measured by satellites in adjacent channels respectively are determined; inverse surface temperatures corresponding to the pixels are calculated; after being obtained, the inverse surface temperatures corresponding to the pixels are marked on the landform picture, centralized analysis of the distribution of the inverse surface temperatures on the landform picture is conducted, and then vegetation fire monitoring and early warning are conducted. The power transmission line vegetation fire monitoring and early warning method based onthe geostationary satellite monitoring data has the advantages that the precision of the inverse surface temperatures can be improved, and thus the accuracy of vegetation fire monitoring and early warning can be effectively improved when vegetation fire monitoring and early warning are conducted according to the inverse surface temperatures.

Description

technical field [0001] The invention belongs to the technical field of mountain fire monitoring and early warning, and in particular relates to a method for monitoring and early warning of mountain fires in power transmission lines based on static satellite monitoring data. Background technique [0002] In recent years, with global warming and frequent extreme weather, the inland areas of our country have more and more hot and sunny weather in spring and autumn; at the same time, as a large agricultural country, our country has a tradition of burning straw and other agricultural waste since ancient times; Although our country strictly prohibits tourists from carrying any fire source when traveling up the mountain, the supervision will be lax in some inaccessible areas, and some tourists' mistakes will cause mountain fires. With the implementation of the policy of returning farmland to forests in my country, the protection of vegetation in mountainous areas is getting better ...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with global warming and frequent extreme weather, the inland areas of our country have more and more hot and sunny weather in spring and autumn; at the same time, as a large agricultural country, our country has a tradition of burning straw and other agricultural waste since ancient times; Although our country strictly prohibits tourists from carrying any fire source when traveling up the mountain, but in some inaccessible areas, the supervision will be lax, and some tourists’ mistakes will lead to mountain fires

With the implementation of the policy of returning farmland to forests in our country, the protection of vegetation in mountainous areas is getting better and better. Once a wildfire occurs, it will spread rapidly. If it cannot be extinguished in time, it will cause the transmission line to trip due to the wildfire, which seriously threatens the safe and stable operation of the power grid.

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