An Error Model of Pylons Tilt Monitoring Using Horizontal Section Method

doi:10.13474/j.cnki.11-2246.2018.0146

Abstract

Abstract:

Aiming at the inclination monitoring method of the high-voltage tower based on three-dimensional laser scanning technology,the inclination principle of high-voltage using the offsets of the horizontal-split dough center and the source of error are analyzed.The research shows that the amount of inclination error of the tower is mainly related to the tilt amount and the asymmetry of the upper and lower.Based on the formula,the tilt error correction model on the main inclined profile is established,and the special point cloud data processing software is developed.With the example of the inclined high-voltage tower in the mining area of in Shanxi province,the inclination value of the tower is calculated by this method.The results are compared with that of the feature point method,and the validity and accuracy of the algorithm and data processing program are verified.The research of the correction of errors in this paper has a strong meaning reference about tilt measurement of the asymmetric higher-smaller structure,such as chimneys,towers,measured by laser scanning technology.

Key words: terrestrial laser scanning, pylons, deformation monitoring, error correction

CLC Number:

P258

CAI Lailiang, WANG Shanshan, YUAN Guanglin, GU Shudan, SONG Deyun. An Error Model of Pylons Tilt Monitoring Using Horizontal Section Method[J]. 测绘通报, 2018, 0(5): 71-76.

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