Research on slope instability displacement monitoring technique based on laser spot video identification method

Xi Xu; Hao Liu; Xuefeng Zhao

doi:10.1117/12.2084069

27 March 2015 Research on slope instability displacement monitoring technique based on laser spot video identification method

Xi Xu, Hao Liu, Xuefeng Zhao

Author Affiliations +

Proceedings Volume 9435, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2015; 943530 (2015) https://doi.org/10.1117/12.2084069
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, California, United States

Abstract

Based on image processing technology, a laser identification method of displacement monitoring with high-efficiency and low-cost has been proposed. Using laser spot video identification method in landslide monitoring, displacement, the main specialty of the sliding slope may be obtained and the monitoring efficiency may be improved. Fix the laser on the object and project the laser spot onto a fixed screen. When the object movement occurs, the camera fixed in front of the screen will shoot the entire movement of the laser spot on the screen. In this way, the displacement of the object will be obtained by analyzing the movement state of the spot. Experiments have been conducted, which contain static displacement experiments including cyclic loading test experiments and random loading experiments, as well as dynamic displacement. Results are proved well by comparison with the data that a laser displacement sensor collected. A great quantity of tests demonstrated that laser identification method of displacement monitoring with high-accuracy and low-cost is now what we have explored.

Citation Download Citation

Xi Xu, Hao Liu, and Xuefeng Zhao "Research on slope instability displacement monitoring technique based on laser spot video identification method", Proc. SPIE 9435, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2015, 943530 (27 March 2015); https://doi.org/10.1117/12.2084069

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KEYWORDS

Sensors

Bridges

Video

Laser processing

Video processing

Landslide (networking)

Laser applications

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