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Early warning system for geological disaster of landslide and early warning method thereof

A technology for geological disasters and landslides, applied to alarms, instruments, etc., can solve the problems of easy false alarms, false contact with animals, etc., and achieve the effect of improving accuracy

Active Publication Date: 2018-09-04
GUANGZHOU ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional landslide early warning systems use a single sensor for related monitoring. For example, the invention patent with the patent application number 201510224345.x is composed of a single sensor and related communication chips. touch or running water, etc.), it is easy to form false alarms. Therefore, how to establish a reliable early warning system has become a top priority for disaster prevention departments.

Method used

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  • Early warning system for geological disaster of landslide and early warning method thereof
  • Early warning system for geological disaster of landslide and early warning method thereof
  • Early warning system for geological disaster of landslide and early warning method thereof

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Embodiment 1

[0023] The early warning system for landslide geological disasters in this embodiment consists of a monitoring unit and an early warning unit. The key point is that there are multiple monitoring units, which are respectively connected by communication with the early warning units; the monitoring units are distributed at intervals to form a monitoring network. Such as figure 2 As shown, specifically, the monitoring unit includes a MEMS three-axis acceleration sensor 1, a main control module 2, a communication module 3 and a power supply for the MEMS three-axis acceleration sensor 1, the main control module 2, and the communication module 3. The main control module 2 is connected with the MEMS three-axis acceleration sensor 1 and the communication module 3 respectively. The MEMS three-axis acceleration sensor 1 is deeply buried in the rock and soil of the observed area, and the MEMS three-axis acceleration sensor 1 will automatically obtain the component of the acceleration of ...

Embodiment 2

[0030] Different from Embodiment 1, in this embodiment, the monitoring unit also includes a hard tubular housing 7 with an open top, the top of the hard tubular housing 7 is connected to the bracket 5, the MEMS triaxial acceleration sensor 1, the main Both the control module 2 and the battery 6 are fixed on the inner wall of the casing 7, and the casing wall (including the side wall and the bottom wall) of the casing 7 is provided with water-permeable holes; Osmometer 8, to monitor water seepage situation. The casing 7 can protect the MEMS triaxial acceleration sensor 1 , and when the soil or rock formation is loose, the casing 7 can amplify the change of its inclination angle, which is equivalent to improving the detection sensitivity of the MEMS triaxial acceleration sensor 1 . More importantly, the monitoring unit can also monitor the water seepage while monitoring the change of the inclination angle. As we all know, when the water content in the rock and soil increases, th...

Embodiment 3

[0034] Different from Embodiment 2, in this embodiment, there are three piezometers 8 arranged vertically to monitor water seepage at different depths. After adopting the monitoring unit that a plurality of osmometers 8 are housed, the early warning method of the early warning system of the landslide geological disaster proposes following improvement: the monitoring unit utilizes MEMS three-axis acceleration sensor 1 to monitor the inclination angle variation, utilizes a plurality of osmometers simultaneously The piezometer 8 monitors the amount of water seepage and the amount of water seepage change; the early warning unit judges whether a landslide will occur based on the inclination change Δu, water seepage change ΔV and the current monitored water seepage V of two adjacent monitorings, and the landslide risk coefficient w=(KΔu +JΔV) / T+MV, ΔV=(A 1 ΔV 1 + A 2 ΔV 2 + A 2 ΔV N ) / N; V=(A 1 V 1 + A 1 V 2 +A 3 V N ) / N; where K, J, M, A 1 、A 2 、A 3 is a preset coeffi...

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Abstract

The invention aims to provide an early warning system for a geological disaster of landslide and an early warning method thereof. The system is formed by multiple monitoring units and an early warningunit and is characterized in that the multiple monitoring units are in communication connection with the early warning unit, and the monitoring units are spaced apart to form a monitoring network. Amethod of the gridded deployment of the monitoring units is adopted by landslide warning, the influence of the abnormal data of a single monitoring unit can be shielded, an osmometer is creatively introduced to monitor the water seepage inside rock and soil, the possibility of a landslide is assessed with the combination of the change of an inclination angle and water seepage, and the accuracy ofearly warning is improved.

Description

technical field [0001] The invention relates to the technical field of geological disaster observation, in particular to an early warning system and an early warning method for landslide geological disasters. Background technique [0002] Landslides will threaten and damage people's lives and property, so it is necessary to establish a monitoring and early warning system for geological disasters. Realize timely monitoring of geological disasters in mountainous areas through a professional monitoring system, and provide scientific basis and technical support for the government and relevant departments to prevent and control geological disasters, protect people's lives and property, and make decisions and implementations of disaster prevention and mitigation. [0003] Traditional landslide early warning systems use a single sensor for related monitoring. For example, the invention patent with the patent application number 201510224345.x is composed of a single sensor and relat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/10G08B29/18
CPCG08B21/10G08B29/188Y02A50/00
Inventor 陈斌曾旭畅郭壮龙龚正平肖国龙武果
Owner GUANGZHOU ELECTRONICS TECH
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