On-board 3D terrain automatic measuring system and method

Abstract

The invention provides an on-board 3D terrain automatic measuring system and a method. The system comprises a laser transmitting device, a measuring rod, a GPS receiving device, a laser measuring receiving device and a controller; wherein, the laser measuring receiving device is arranged on the measuring rod and used for receiving a laser signal which is transmitted by the laser transmitting device. The measuring rod is arranged on a traveling vehicle; the laser measuring receiving device comprises a plurality of lengthways distributed silicon photocells and a plurality of measuring circuits, wherein, the measuring circuits are respectively connected with the silicon photocells; and the controller is respectively connected with the GPS receiving device and the laser measuring receiving device. The on-board 3D terrain automatic measuring system and the method thereof can automatically measure the 3D terrain in real time, generate the date of the 3D terrain, improve measuring efficiency and reduce measuring cost.

Description

technical field [0001] The invention relates to measurement technology, in particular to an airborne three-dimensional terrain automatic measurement system and method. Background technique [0002] Improving the leveling accuracy of the farmland ground can effectively improve the performance index of the ground irrigation system, and achieve a significant effect of saving water and increasing production. It is an important measure to improve the ground irrigation system by using laser-controlled leveling technology to achieve high-precision leveling of the farmland ground, thereby improving the terrain conditions of the farmland. In the leveling operation of the farmland ground, it is necessary to measure the three-dimensional topography before and after the leveling of the land in order to draw up a reasonable design scheme of the leveling project and quantitatively evaluate the leveling effect. [0003] Existing three-dimensional terrain surveying equipment mainly include...

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Problems solved by technology

[0005] However, when the above-mentioned prior art is measuring three-dimensional terrain, for each point to be measured, the measuring rod must be manually placed on the point to be measured, and the height of the measuring rod must be manually adjusted to reach the laser plane of the reference, and the elevation information also requires Manual input into the data collector is time-consuming and labor-intensive, especially when implementing large-scale ground leveling operations, it will consume a lot of time and manpower, and the measurement efficiency is low and the cost is high

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