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A Debris Flow Imminent Early Warning Method Based on Beidou Satellite and GPRS

A Beidou satellite and GPRS module technology, applied in the field of short-term early warning of debris flow, to achieve the effect of improving monitoring and early warning, reducing casualties and economic losses

Inactive Publication Date: 2015-11-25
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(4) How to comprehensively define the early warning threshold of the influencing factors leading to the occurrence of debris flow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Taking the typical terrain of debris flow gullies in western mountainous areas—Ganbao Tibetan Village in Lixian County, Sichuan Province as an example, the implementation method of the early warning model will be explained in detail.

[0022] The short-term early warning method of debris flow based on Beidou satellite and GPRS includes the following steps:

[0023] (1) Determine the position of the sensor node of the positioning system. It is determined that the debris flow early warning information that can be obtained through monitoring under the current technical conditions includes landform conditions, geological conditions, and meteorological and hydrological conditions. With the help of Beidou satellite navigation system and GPRS, the specific location information of each sensor node with GPRS positioning system is determined. The node sends a request to the ground central station, and the ground central station sends a signal to the satellite, and then transmits ...

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PUM

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Abstract

The invention relates to a mudslide short-term and impending prewarning method based on a Beidou satellite and a GPRS, and belongs to the technical field of geological disaster risk analysis. The prewarning method includes the following steps: (1) the position of a sensing node of a positioning system is determined; (2) a pressure sensor and a rain gauge are set; (3) a Beidou satellite navigation mobile phone is modified; (4) monitoring is carried out, wherein according to pressure data and changes and existence conditions of GPRS signals, whether a mudslide occurs and where the mudslide occurs can be judged, monitoring staff make a final prewarning policy through the monitoring data, when the magnitude of the mudslide reaches a prewarning level, the monitoring staff immediately submit the information to a management conducting department so that information of a corresponding level can be published. Due to the fact that a mudslide short-term and impending prewarning system is built, monitoring and prewarning of a mudslide disaster are improved, and accordingly casualties and a large amount of economic loss are reduced.

Description

technical field [0001] The invention relates to a short-impending debris flow early warning method based on Beidou satellite and GPRS, and belongs to the technical field of geological disaster risk analysis. Background technique [0002] Debris flow refers to a special torrent carrying a large amount of sediment and stones due to landslides caused by heavy rain, snowstorm or other natural disasters in mountainous areas or other areas with deep valleys and steep terrain. Due to the complex geological conditions, our country is a place where debris flow disasters frequently occur. Debris flow is a geological action between running water and landslides. A typical debris flow is composed of viscous mud with coarse solid debris suspended and rich in silt and clay. Under appropriate terrain conditions, a large amount of water soaks the solid accumulation in the hillside or ditch bed, reducing its stability, and the water-saturated solid accumulation moves under its own gravity, f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/10
Inventor 丁明涛王青程尊兰颜竟王骏黄龙阳
Owner SOUTHWEAT UNIV OF SCI & TECH