Automatic generation system of ground line data

Abstract

The invention provides an automatic generation system of ground line data. The system comprises a laser radar, a data processing system and a checking and editing system; the laser radar obtains point cloud data of a ground line; the data processing system processes the obtained point cloud data, carries out data modeling and elevation interpolation according to ground type points in the point cloud data to obtain the ground line; and the checking and editing system drafts the obtained ground line in a visual graph environment, checks the edits the generated ground line visually by overlapping LiDAR point cloud and DOM data, and generates ground line data finally. The system can extract the designed ground line rapidly and automatically, and integrate laser radar measurement with road production drawing design; and in an area with many structures, the ground line generated by the system reflects real land surface information of micro-landforms more accurately compared with that via a digital-analog interpolation method.

Description

Technical field [0001] The invention relates to the field of surveying and mapping, in particular to an automatic generation system for ground line data. Background technique [0002] At present, the efficiency and accuracy of obtaining ground line information in highway survey and design are low. The current mainstream method is to use total station or real-time differential positioning technology (rael-time kinematic, RTK) to stake out the middle pile first, and then use RTK to measure the elevation of each cross section. However, this method uses single-point contact measurement, resulting in slower operation speed. At the same time, due to natural conditions such as weather, traffic and terrain difficulties in the survey area, it is easy to cause low accuracy of surveying and mapping results, difficult to guarantee the construction period, and survey costs. Increased adverse consequences. Summary of the invention [0003] In order to solve the above technical problems, the p...

AI Technical Summary

Problems solved by technology

However, this method uses single-point contact measurement, which leads to a slow operation speed. At the same time, due to the limitations of natural conditions such as weather, traffic, and difficult terrain in the survey area, it is easy to cause low accuracy of surveying and mapping results, difficult to guarantee the construction period, and survey costs. Increased adverse consequences

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