Deep-hole geological observation system and method based on unmanned aerial vehicle

Abstract

The invention relates to a deep-hole geological observation system and method based on an unmanned aerial vehicle. According to the observation system, image collection equipment and a laser ranger are arranged on the unmanned aerial vehicle. The observation method comprises the steps that 1, the depth of a cavity is measured through the laser ranger, and a processing unit evenly divides the cavity into multiple image collecting layers; 2, the unmanned aerial vehicle is operated to rotate a circle on each image collecting layer to measure image information of the portion, at each image collecting layer, of the cavity side wall, the unmanned aerial vehicle is operated to fall layer by layer to the next image collecting layer to repeat the above-mentioned process to conduct image collecting till the unmanned aerial vehicle falls to the bottom of the cavity; 3, the processing unit conducts three-dimensional reconstruction on the geomorphologic shape in the cavity, and a three-dimensional model image is displayed by an observation terminal. Accordingly, the image information and depth information in the cavity are collected by carrying the image collection equipment and the laser ranger through the unmanned aerial vehicle, three-dimensional reconstruction is conducted through the processing unit, and then the real morphology in the cavity is restored conveniently.

Description

Technical field: [0001] The invention relates to the technical field of geological exploration, in particular to an unmanned aerial vehicle-based deep hole geological observation system. Background technique: [0002] With the rapid development of my country's national economy, large-scale pile foundation engineering construction is emerging, such as building pile foundations, bridge pile foundations and large building pile foundations. The above-mentioned pile foundation project is the most concerned issue for the construction personnel after the hole is opened during construction, the stratum below the hole, the landform, the collapsed hole, and the presence or absence of karst caves, soil caves, and partial holes. Especially during the construction process, it is found that there is a cavity in the ground, which will greatly hinder the progress of the project. Since the size of the underground cavity cannot be measured, it is impossible to accurately estimate the amount o...

AI Technical Summary

Problems solved by technology

Especially during the construction process, it is found that there is a cavity in the ground, which will greatly hinder the progress of the project. Since the size of the underground cavity cannot be measured, it is impossible to accurately estimate the amount of concrete required for pouring during construction, and it is easy to cause secondary problems caused by untimely pouring. The second back cover and broken piles, and the construction cost cannot be estimated, which brings great uncertainty to the construction

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