Multi-source sensor-based landslide monitoring and early-warning device

A technology of early warning devices and source sensors, applied to instruments, alarms, etc., can solve the problems that it is difficult to fully indicate the occurrence of landslides, and achieve the effects of reducing disaster losses, avoiding casualties, and reducing transmission costs

Inactive Publication Date: 2016-10-05
TONGJI UNIV
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Problems solved by technology

Numerical models can simulate the occurrence of landslides to a certain extent, but landslides have their own attributes and characteristics, and numerical models cannot fully represent the occurrence of actual landslides.

Method used

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Embodiment

[0029] This embodiment is mainly to simulate the landslide in Hongkou Township, Dujiangyan City, Sichuan Province and monitor it by using the landslide monitoring and early warning device based on multi-source sensors of the device.

[0030] According to the fact that the slope of the landslide in Hongkou Township, Dujiangyan City, Sichuan Province is between 20 degrees and 40 degrees, it is determined that the slope of the simulated landslide body is 30 degrees, 15 degrees, and 5 degrees. The base frame of the simulated landslide is mainly constructed of red bricks with a width of 1.5 meters. The length of the three slopes of the landslide body is 2 meters, and the maximum height of the landslide body is 3 meters. According to the landslide in Hongkou Township, Dujiangyan City, which contains a lot of gravel and loose soil, the simulated landslide body is designed as two layers: the first clay layer 10 with a lower layer depth of 0.6 meters and the second clay layer with a sur...

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Abstract

The invention relates to a multi-source sensor-based landslide monitoring and early-warning device. The device comprises a data acquisition module, a data transmission module, a data processing module and a landslide early-warning module. The data acquisition module adopts a multi-source sensor to collect real-time data. The data transmission module comprises a broadband transmission unit and a narrowband transmission unit, wherein the broadband transmission unit and the narrowband transmission unit are respectively used for transmitting image data and non-image data. The data processing module is used for judging the working quality of the sensor and extracting a landslide monitoring factor through processing data collected by the sensor, and obtaining a digital elevation model through processing image data. The landslide early-warning module is used for checking whether the landslide monitoring factor exceeds a preset threshold range or not so as to figure out the occurrence risk of a landslide and send out an alarm. Compared with the prior art, the multi-source sensor is adopted for combined measurement, so that the landslide monitoring accuracy and the early-warning confidence are improved. Meanwhile, multiple data communication apparatuses different in characteristics are adopted according to the amount of the collected data of the sensor, so that the transmission cost is reduced.

Description

technical field [0001] The invention relates to a landslide early warning device, in particular to a landslide monitoring and early warning device based on multi-source sensors. Background technique [0002] Landslide hazards, that is, the synthesis of various landslides, collapses, and debris flows, are triggered by various external factors, such as earthquakes, volcanoes, river erosion, snowmelt, rainfall, and human activities. The destructive power of secondary disasters caused by large landslides even far exceeds its direct destructive power. Landslide risk assessment and management, early warning and forecasting have always been effective ways of disaster reduction and prevention advocated and promoted internationally. At present, there is an urgent need for direct and precise monitoring of large-scale landslides to keep abreast of the accumulation and triggering factors of landslides and surrounding environmental changes. How to effectively integrate multiple sensors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/10
Inventor 陆平吴杭彬乔刚冯甜甜李巍岳童小华刘春李荣兴张绚
Owner TONGJI UNIV
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