Adaptive terrain mapping system based on laser scanning

By using an adaptive terrain surveying and mapping system based on laser scanning in terraced terrain surveying and mapping, using drones and information association modules and other technologies, the problem of inadaptive terrain measurement point layout and scanning parameter setting in the existing technology is solved, and the problem of inadequate terrain measurement point layout and scanning parameter setting in the existing technology is realized. High-precision mapping of terraced terrain.

CN118960679BActive Publication Date: 2025-01-03BEIJING HENGCHUANG ZHICHENG AUTOMATION TECH CO LTD +1
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Patent Information

Application Number
CN202411426387.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-14
Publication Date
2025-01-03
Estimated Expiration
2044-10-14

AI Technical Summary

Technical Problem

The prior art has failed to adjust the layout and scanning parameters of terrain measurement points according to the actual terrain characteristics of terraced fields, affecting the data accuracy of terraced fields.

Method used

Adaptive terrain surveying and mapping system based on laser scanning is adopted, and the drone scans the terraced field collection sub-paragraphs along the preset flight trajectory. The information correlation module establishes the relationship between real-time position coordinates and terraced field collection sub-paragraphs, and terrain feature aggregation The module calculates the difference in the number of fields and area, the characteristic characterization unit calculates the terrain runoff characterization coefficient, and the scan control module adds auxiliary hover points to the runoff impact terrain area and adjusts the scanning parameters.

Benefits of technology

The data accuracy of terraced terrain mapping is improved, and the layout of terrain measurement points and scanning parameters are adaptively adjusted, which enhances the screening and data representation of complex terraced terrain areas, ensuring the accuracy of terrain mapping.

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Abstract

The invention relates to the technical field of topographic surveying and mapping, and in particular to an adaptive topographic surveying and mapping system based on laser scanning. The invention uses an unmanned aerial vehicle to scan a terraced field acquisition sub-plot and determine real-time position coordinates, establishes an association relationship with the terraced field acquisition sub-plot based on the real-time position coordinates through an information association module, determines the number of field surfaces in the terraced field acquisition sub-plot and the area difference of adjacent terraced field surfaces through a measuring unit, determines whether the terraced field acquisition sub-plot is a runoff disturbance feature plot through a feature characterization unit, determines a runoff impact terrain area through a scanning control module, adds an auxiliary hovering point in the runoff impact terrain area, and controls the scanning parameters of the unmanned aerial vehicle at the auxiliary hovering point, thereby realizing the screening of complex landform areas in the terraced field terrain, adaptively adjusting the layout of terrain measurement points and the setting of scanning parameters, and improving the data accuracy of terraced field terrain surveying and mapping.
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