Cadastral surveying system based on multi-platform laser radar

Abstract

The invention provides a cadastral surveying system based on a multi-platform laser radar. The cadastral surveying system based on the multi-platform laser radar comprises a multi-platform laser radarsystem, a data resolving module and a point cloud data preprocessing module. The multi-platform laser radar system drives into a surveying area or flies over the surveying area from the outside of the surveying area, data acquisition is carried out according to an acquisition route surveyed and designed in the earlier stage of a project, whether the acquisition route and an acquisition area are complete or not is checked after the acquisition is completed, and supplementary surveying is timely carried out if omissions exist to ensure data integrity. The data resolving module is used for static data conversion of a base station and POS data fusion resolving. The point cloud data preprocessing module is used for converting original laser data into laser point clouds in las format under a WGS84 coordinate system. The cadastral surveying system based on the multi-platform laser radar can reduce the number of field surveying personnel, reduce the implementation cost, have little dependenceon weather and climate, have high acquisition efficiency, convert the main working time into office work production, and improve the operation efficiency by more than 7-10 times.

Description

technical field [0001] The invention relates to the field of cadastral surveying, in particular to a multi-platform laser radar-based cadastral surveying system. Background technique [0002] Cadastral survey is a professional survey that serves cadastral management. It is a survey and area calculation work to meet the needs of cadastral elements such as the ownership line, location, shape, and quantity of parcels in cadastral management. Cadastral surveying requires high precision and heavy workload inside and outside the field. The traditional method is to use RTK and total station for field work. Facing the survey environment with dense houses and dense trees, traditional surveying and mapping methods cannot obtain data quickly and accurately. Problems in traditional cadastral survey: 1. A large number of skilled field surveyors are required, and the implementation cost is high; 2. The environment in the cadastral survey area is harsh and complex, which increases the diff...

AI Technical Summary

Problems solved by technology

Cadastral surveying requires high precision and heavy workload inside and outside the field. The traditional method is to use RTK and total station for field work. Facing the survey environment with dense houses and dense trees, traditional surveying and mapping methods cannot obtain data quickly and accurately.

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