Ground elevation three-dimensional laser scanner and scanning method

Abstract

The invention provides a ground elevation three-dimensional laser scanner and a scanning method. Two aircrafts which fly synchronously one behind the other are used for carrying a laser scanning ranging system to form an air large-basal-spur laser triangular range finder, and a ground control assembly is used for controlling the flight and scanning of the aircrafts. The ground elevation three-dimensional laser scanner and scanning method disclosed by the invention are simple in model, reliable and stable in acquired ground elevation data and high in precision; and the device is high in overallcost performance, convenient in use and suitable for being popularized to use at a primary level.

Description

technical field

[0001] The invention relates to the technical field of ground three-dimensional scanning measurement. Background technique

[0002] The three-dimensional measurement of the ground is a long-term hot and difficult problem, which is of great relevance to all kinds of ground engineering, and even the most critical foundation. Due to the development of GPS technology, especially the improvement of laser ranging technology, numerical three-dimensional measurement and reconstruction have made great progress, and the laser three-dimensional scanner has become a symbol of the development of measurement technology.

[0003] The basic method of ground three-dimensional measurement is to measure the elevation value of grid surface elements on the basis of ground grid coordinates to obtain ground elevation data. The basic principle of the above method is based on the origin of the laser ranging three-dimensional scanning technology method.

[0004] Laser ranging 3D sca...

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