Position positioning system for surveying and mapping

Abstract

The invention discloses a position positioning system for surveying and mapping. The system comprises a measurement platform, a first supporting rod, a second supporting rod, a circular platform, a connecting rod, a placement platform, a target measurement device and a data processing system. The positioning system disclosed by the invention is applicable to measurement of a static target object and a low-speed operation target object (with the speed less than 1mm / 1min). According to the position positioning system, a GPS (Global Positioning System) position finder and a three-dimensional digital compass are arranged on a three-dimensional laser scanner, so that the three-dimensional laser scanner can be accurately positioned and orientated; when the three-dimensional laser scanner is usedfor continuously measuring under the driving of a rotary motor and a detection inclined angle is set under the driving of two motor driving hoisting devices, and rotary angle information of the three-dimensional laser scanner and inclined angle information of the three-dimensional laser scanner are extracted from observation attitude information obtained by the three-dimensional digital compass respectively; the operation of the rotary motor and the operation of the two motor driving hoisting devices are regulated and controlled according to a PID (Proportion Integration Differentiation) control algorithm, so that the measurement precision is improved.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping, and more specifically, to a position positioning system for surveying and mapping. Background technique [0002] Surveying and mapping refers to the measurement, collection and drawing of the shape, size, spatial location and attribute surveying and mapping of natural geographical elements or surface artificial facilities. The main research object of surveying and mapping is the earth and its surface morphology. During the development process, it formed geodesy, general surveying, photogrammetry, engineering surveying, marine surveying and cartography and other sub-disciplines. 3D laser scanning technology utilizes the principle of laser ranging, and can quickly reconstruct the 3D model of the measured object and the line, surface, volume by recording the 3D coordinates, reflectivity and texture of a large number of dense points on the surface of the measured object. and other map ...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a position positioning system for surveying and mapping, which is used to solve the problem in the prior art that when a three-dimensional laser scanner is used for surveying and mapping, the real-time coordinate positioning and orientation of the scanner itself cannot be realized, which affects the measurement efficiency and accuracy.

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