Southwest Jiaotong University

Yangfeng Lyu

Zhixiang Yu

Hu Xu

Jiaxin Chen

Xiaoyu Yang

Jiahui Tong

Lintao Ma

Yongding Tian

The invention relates to the technical field of intelligent construction and maintenance, and relates to a non-contact visual monitoring system and method for a flexible protective structure against rockfall disasters; it comprises a hardware system and a data analysis system, and the hardware system uses a multipoint distributed high-resolution high-speed camera to capture dynamic image sequences of a protective structure under the rockfall impact in a non-contact mode; the data analysis system comprises an impact deformation state full-field tracking module and a multipoint impact large deformation extraction module, and the impact deformation state full-field tracking module captures spatio-temporal changes of impact deformation of the protective system by adopting a full-field optical flow method, constructs a two-dimensional velocity amplitude distribution diagram and performs full-field spatio-temporal tracking of large deformation of the system.

Non-contact visual monitoring system and method for a flexible protective structure against rockfall disaster

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Chengdu, China

Yangfeng Lyu