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Method and system for predicting debris flow after forest fires in alpine and valley areas

A forest fire and prediction method technology, which is applied to fire alarms, instruments, alarms, etc., can solve the problems of post-disaster debris flow data secondary debris flow prediction and other issues

Active Publication Date: 2022-06-10
四川省安全科学技术研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a method and system for predicting debris flows after forest fires in alpine and canyon areas, which solves the difficulty in obtaining data on debris flows after forest fires in alpine and canyon areas and the prediction of secondary debris flows after disasters. The problem

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  • Method and system for predicting debris flow after forest fires in alpine and valley areas
  • Method and system for predicting debris flow after forest fires in alpine and valley areas
  • Method and system for predicting debris flow after forest fires in alpine and valley areas

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Embodiment 1

[0049] as Figure 1 As shown in the present embodiment, the present invention provides a method for predicting landslides after forest fires in alpine canyon areas, comprising the forest fire data acquisition stage in alpine canyon areas, and the prediction stage of landslides after forest fires:

[0050] The forest fire data acquisition phase in the alpine canyon area includes the following steps:

[0051] A1. Using the spectral characteristics of the high-resolution remote sensing thermal infrared band and the texture characteristics of visible light, the fire field combustion point, fire point, fire line and fire field emergency rescue information are obtained;

[0052] The fire emergency rescue information in step A1 includes aviation water intake point, fire water intake point location, helicopter diversion point, fire rescue material depot, rescue entry route, accessible roads, settlements, schools and gas stations information;

[0053] A2. Based on the spectral texture chara...

Embodiment 2

[0079] as Figure 4 As shown, the present invention also provides a system for predicting landslides after forest fires in alpine canyon areas, comprising:

[0080] Data acquisition subsystem for using high-resolution remote sensing thermal infrared band spectral features and visible light texture features to obtain spatio-temporal distribution data of heavy and medium over-fire zones and potential debris flow ditch data;

[0081] The data acquisition subsystem comprises:

[0082] Fire field combustion and emergency rescue information acquisition module, which is used to obtain fire field combustion point, fire point, fire line and fire field emergency rescue information by using high-resolution remote sensing thermal infrared band spectral features and visible light texture features;

[0083] Fire situation evolution and fire development information acquisition module, which is used for dynamic detection of fire field situation evolution and fire development information based on t...

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Abstract

The invention discloses a method and system for predicting debris flow after forest fires in alpine and canyon areas, and belongs to the technical field of early warning of debris flows after forest fire disasters, including the forest fire data acquisition stage in alpine and canyon areas, and the prediction stage of debris flow after forest fires: In the stage of forest fire data acquisition in alpine and valley areas, high-resolution remote sensing thermal infrared spectrum features are used to sense abnormal brightness temperature, quickly discover fire points, burning points, monitor fire scene evolution and fire development; The susceptibility evaluation of secondary hidden dangers after fire such as debris flow ditch provides important decision-making support basis for disaster prevention and mitigation activities such as predicting secondary hidden dangers after fire and post-disaster reconstruction; Post-debris flow data and the problem of post-disaster secondary debris flow prediction.

Description

Technical field [0001] The present invention belongs to the field of debris flow early warning technology after forest fire disaster, in particular to a prediction method and system for landslides after forest fires in alpine canyon areas. Background [0002] Forest fires seriously threaten the safety of human life and property, and the hidden dangers of secondary disasters that occur frequently after fires often lead to more casualties and property losses, hinder the development of post-disaster reconstruction work, and cause major negative impacts on social and people's livelihood. Forest fire is a kind of natural disaster that is difficult to perceive and warn before the disaster, extremely harmful during the disaster, and difficult to make emergency fire fighting decisions. After a forest fire, it is easy to cause secondary disasters such as mudslides in the areas near the river basin. [0003] Traditional forest fires are affected by the terrain of high mountains and valleys...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B17/00G08B21/10G08B31/00
Inventor 唐尧胡光中石宇徐陈王立娟靳晓庞全罗玉婷廖军皮雅绮黄昌萍万真魏恩容
Owner 四川省安全科学技术研究院