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Multilayer cell forest fire spread algorithm

A forest fire spread, cellular technology, applied in the field of multi-layer cellular forest fire spread algorithm, to achieve the effect of avoiding deterioration

Inactive Publication Date: 2016-05-18
CHENGDU GKHB INFORMATION TECH
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Problems solved by technology

[0004] The purpose of the present invention is: for the above-mentioned existing problems, in order to overcome the limitation of decision-making and command caused by considering the fire field as a whole in the existing fire spread algorithm, a kind of multi-layer cellular forest fire spread algorithm is provided to improve the fire spread algorithm. The practicability and accuracy of the fire spread algorithm can effectively solve the above-mentioned technical problems existing in the existing fire spread algorithm

Method used

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  • Multilayer cell forest fire spread algorithm

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Embodiment 1

[0026] Embodiment 1: the concrete steps of a kind of multilayer cellular forest fire spreading algorithm are as follows:

[0027] First, the fire scene is divided into multiple layers according to the needs, and the lower layer is a further decomposition of the upper layer cells. Therefore, it is divided into different layers according to the calculation accuracy and the size of the fire field. Each layer is divided into multiple cells, and these cells calculate the future development trend of this cell according to the fire development factor of this layer. The development trend includes three aspects, one is the direction of development, represented by θ; the other is the intensity of development, represented by γ; the third is the line of fire, represented by μ.

[0028] Among them: the fire development factors include the burning bed depth of combustibles, the moisture content of dead combustibles, the fuel load, surface area to volume ratio, moisture content, slope, slope...

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Abstract

The invention discloses a multilayer cell forest fire spread algorithm. The algorithm comprises following steps: step 1, layering downwards: separating a fire scene from top to bottom successively according to 0, 1, 2, ..., N; step 2, decomposing layer by layer: wherein the lower layer is the further decomposed layer of corresponding upper layer cells, every lower layer is decomposed into a plurality of cells, the cells calculate the development tendency of the cells according to the fire behavior development factors of the layer, the development tendency comprises a development direction Theta, development strength Gamma and a fire line Mu; step 3, calculating spread: starting from the Nth layer, collecting the development tendency respectively calculated by the cells of each layer to generate a development tendency corresponding to the upper layer cells, calculating until to the 0th layer, and calculating the fire line spread range corresponding to the 0th layer through a cell collection algorithm. According to the multilayer cell forest fire spread algorithm of the invention, the fire behavior development can be effectively predicted so as to schedule and deploy in advance; the fire behavior is controlled as early as possible; and the fire behavior is prevented from deteriorating.

Description

technical field [0001] The invention relates to a multi-layer cellular forest fire spreading algorithm, which belongs to the technical field of forest fire intelligent prediction and control. Background technique [0002] Forest fires not only cause huge losses to the property of the country and the people, but also destroy the ecosystem, reduce soil fertility, and cause natural disasters such as soil erosion and mudslides. When a fire is discovered, to control the fire as early as possible and avoid its deterioration, it is necessary to scientifically and effectively predict the development of the fire and make arrangements in advance to effectively control the fire. Due to the temporality, spatiality and randomness of forest fires, it is necessary to intelligently predict the behavior of forest fires, and analyze the spread of forest fires in combination with factors such as temperature, humidity, wind speed, wind direction, and topography of the place where the fire occur...

Claims

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Application Information

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IPC IPC(8): G06F19/00
CPCY02A40/28
Inventor 李梁羊绍春吴磊陈鹏徐睿赵刚
Owner CHENGDU GKHB INFORMATION TECH
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