A method and device for visual detection of mountain landslides that overcome the self-jitter of the monitoring platform

Abstract

The invention relates to a method for detecting deformation of mountain landslides, and provides a method and device for visual detection of mountain landslides which overcome the shaking of the monitoring platform itself. The invention comprehensively utilizes computer vision and photogrammetry technology to realize a method and a device for visually detecting landslide risks in geological areas such as mountains and slopes. The initial coordinate system of the monitoring platform in the initial coordinate system establishment step of the present invention and the coordinate system of the monitoring platform at the current moment are transformed through the coordinate system to calculate the shaking amount of the monitoring platform at the current moment; calculate the multiple characteristic points of the mountain slope at the initial moment point, and obtain The coordinate position under the coordinate system; based on the image coordinate position obtained in the current moment coordinate acquisition step of the feature point on the mountain slope and the geodetic coordinates of the feature point on the mountain slope, the displacement of the feature point on the mountain slope is obtained, and finally the entire mountain slope is analyzed The overall displacement deformation.

Description

Technical field [0001] The invention relates to a mountain landslide deformation detection method, in particular to a mountain landslide visual detection method and device that overcomes the jitter of the monitoring platform itself. Background technique [0002] The phenomenon that the rock and soil on the slope slide down along a certain weak surface due to various reasons under the action of gravity is called a landslide, which causes casualties, property losses, damage to buildings and ecological environment, and resource loss, etc. It is called a landslide disaster. The hazards caused by landslides are both direct and indirect. Sometimes they are accompanied by earthquakes and floods or cause mudslides. The consequences are quite serious. my country is one of the countries with the most landslides and the heaviest losses in the world. Since landslides are a common natural geological disaster, in order to avoid serious losses to national construction and people’s lives and p...

AI Technical Summary

Problems solved by technology

Domestic landslide monitoring mostly sets up long-term observation stations for hydrological and geological departments, erecting displacement sensors (surface displacement, deep displacement), groundwater pressure, soil moisture content, regional rainfall, cracks and other monitoring sensors. The common disadvantage is that the instruments are expensive and need special personnel on duty , and the ability of continuous observation is poor, which requires regular on-site data collection and processing

Traditional deformation detection also has defects such as low degree of automation, poor displacement detection accuracy, difficulty in reflecting the overall deformation of the mountain, and inability to monitor and warn in real time, and the monitoring effect is difficult to meet the requirements

In recent years, a variety of deformation detection methods based on navigation satellite positioning technology have emerged. Due to the need to arrange high-precision detection equipment at key points in mountainous areas, there are also problems such as large amount of engineering, low efficiency, and high construction risk.

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