Landslide monitoring and alarming method and device based on laser ranging

Abstract

The invention discloses a landslide monitoring and alarming method and device based on laser ranging. The landslide monitoring and alarming device is composed of a laser range finder, a rotary support, a monitoring and alarming host, a beeper, a data recorder, a solar panel, a solar controller and a storage battery. The landslide monitoring and alarming device and method have the advantages that a non-contact monitoring mode is realized, measurement accuracy is high, the anti-jamming capability is high, the influence from the environment is small, no influence from various terrains (particularly certain areas difficult for constructors to reach) exists, the device is small in size, light in weight and flexible and convenient to install, and no one needs to attend a monitoring site. A fixed sampling time interval or a method of spot check at any time is used, and therefore high-accuracy, high-reliability, real-time, continuous, remote and wireless monitoring and alarming are conducted automatically on multiple monitoring points. The landslide monitoring and alarming method and device based on laser ranging can be widely applied to automatic monitoring and alarming in the fields of landslides, collapse, rock falls and the like.

Description

Technical field: [0001] The invention relates to automatic and continuous monitoring of landslide body displacement by using a laser rangefinder, in particular to a landslide monitoring and alarm method and device based on laser rangefinder. It belongs to the technical field of disaster prevention and mitigation. Background technique: [0002] Landslide is a geological phenomenon of slope rock and soil sliding along the usual shear failure surface. Landslides often cause huge losses, some even devastating disasters, to industrial and agricultural production and people's lives and property. my country is a mountainous country, the mountainous area accounts for 69.4% of the total land area of ​​our country, and the population in the mountainous area accounts for more than half of the national total population. The geological structure of mountainous areas is complex and the ecological environment is fragile; with the accelerated construction of mountainous areas, the ecologic...

AI Technical Summary

Problems solved by technology

Each method has its own advantages and disadvantages, either the monitoring accuracy is low, and it cannot monitor and alarm 24 hours a day; or the investment is large, which is not easy to promote and apply

The first three methods all need to install sensors or equipment for monitoring displacement on the main cracks of the landslide body or on the edge of the cracks. If the main cracks are in areas that are not easy for construction personnel to reach, the difficulty and danger of installation will be increased.

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