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Ground elevation three-dimensional laser scanner and scanning method

A three-dimensional laser and ground elevation technology, applied in the direction of instruments, height/level measurement, and measuring devices, can solve the problems of insufficient height measurement accuracy, no stable reference, and inconvenient use, so as to overcome instability, intuitive data, good stability effect

Active Publication Date: 2018-05-04
NANJING CHINA UNIV INTPROP CO LTD
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Problems solved by technology

The current high-altitude scanning still relies on pulse ranging or phase ranging methods, which have problems such as large point cloud intervals, insufficient height measurement accuracy, and no stable and strict benchmarks. In addition, there are high requirements and high costs, and ordinary users cannot easy to use

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  • Ground elevation three-dimensional laser scanner and scanning method

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings.

[0041] Such as figure 1 As shown, a ground elevation three-dimensional laser scanner provided by the present invention includes an aerial flight scanning component, a ground control component, and a latitude and longitude collector.

[0042] The aerial flight scanning assembly includes a No. 1 aircraft 1 and a No. 2 aircraft 2. The aircraft selected in this embodiment are unmanned aerial vehicles, wherein the No. 1 aircraft 1 is equipped with a laser marking image acquisition device, and the No. 2 aircraft 2 is equipped with a laser marking image acquisition device. Equipped with a laser marking generator, the scanning directions indicated by the arrows in the figure 1 and 2 of the first aircraft 1 and the second aircraft 2 fly synchronously one after the other. quite high.

[0043] The laser marking generator projects laser light to the ground to be measured. In thi...

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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...

Claims

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Application Information

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IPC IPC(8): G01C5/00G01C3/00
CPCG01C3/00G01C5/00
Inventor 贺润峰贺宁贺安之
Owner NANJING CHINA UNIV INTPROP CO LTD
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