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Method and system for remote sensing, monitoring and pre-warning of farmland fire

A remote sensing monitoring and farmland technology, applied in fire alarms, alarms, instruments, etc., can solve the problems of complex fire area monitoring, low early warning efficiency, and low accuracy

Active Publication Date: 2016-05-04
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the existing farmland fire monitoring and early warning method has the problems of complex fire area monitoring, low accuracy and low early warning efficiency

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  • Method and system for remote sensing, monitoring and pre-warning of farmland fire

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Embodiment Construction

[0057] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0058] figure 1 A schematic diagram of a method for remote sensing monitoring and early warning of farmland fires according to an embodiment of the present invention is shown. Such as figure 1 As shown, the method includes:

[0059] S1: Obtain the area of ​​mature crops in the farmland according to satellite remote sensing data;

[0060] S2: According to the area of ​​the mature crops, obtain the number of fire occurrences and the area of ​​each burning trace in the farmland within a certain period of time, and calculate the occurrence intensity of the farmland fire according to the number of fire occurrences in the farmland and the area of ​​the burning traces ;

[0061] S3: Determine the possibility of a fire according to the intensity of the fire and the water content of the canopy of the farmland crops; if the possibility of the fire exceeds a pr...

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Abstract

The invention relates to a method and system for remote sensing, monitoring and pre-warning of a farmland fire. The method for remote sensing, monitoring and pre-warning of a farmland fire comprises following steps: the area of mature crops in a farmland is obtained according to satellite remote sensing data; the times of fire within a certain time period in the farmland and the burnt area of each fire are obtained according to the area of mature crops; the farmland fire intensity is calculated according to the times of fire in the farmland and the burnt area of each fire; the possibility of a fire is determined according to the farmland fire intensity and the canopy water content of crops; if the possibility of a fire exceeds a preset threshold, a farmland fire pre-warning is sent out. The method is based on statistics of fire intensity for many years and remote sensing inversion of crop canopy water content in a monitored region to give fire pre-warning. The method for monitoring the times of fire and area of a fire is easy and highly precise, and the efficiency of pre-warning is high.

Description

technical field [0001] The invention relates to the field of ecological remote sensing, in particular to a method and system for remote sensing monitoring and early warning of farmland fires. Background technique [0002] The burned area of ​​farmland refers to the area where the crops in the farmland have been burned by fire. The farmland fire refers to the damage caused by the uncontrolled burning of the crops in the farmland in time and space. The farmland fire emphasizes the disastrous impact caused by the burning of the crops in the farmland. Moisture content of combustion, that is, the initial spreading moisture content, refers to the moisture content that can spread without extinguishing after the crop is ignited even if the fire source is removed. [0003] The existing fire area remote sensing estimation methods have the characteristics of macroscopic, objective, fast and cheap, and have gradually been widely used. At present, this method is mainly divided into meth...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/00G08B31/00
CPCG08B17/00G08B31/00
Inventor 王树东王玉娟汲玉河张立福田静国张潇元
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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