Foundation pit deformation intelligent monitoring method and system

Abstract

The invention discloses an intelligent monitoring method and system for deformation of a foundation pit, and the method comprises the following steps: S1, arranging a small number of network video monitoring cameras outside a settlement influence range at the periphery of the foundation pit according to the size and shape of the foundation pit, and taking pictures of deformation of the foundation pit; s2, after each camera is erected, taking an initial picture as an original reference, and independently transmitting the initial picture to a server for storage through a wireless network; and S3, in the foundation pit monitoring process, according to monitoring needs, each monitoring camera shoots a foundation pit deformation process picture at regular intervals, and independently transmits the picture to the server for storage through the wireless network. According to the method, the pictures of the same part of the foundation pit at different moments are compared and calculated through related search, an integer pixel search algorithm and a sub-pixel interpolation algorithm on a server, the displacement of image pixel points between the different pictures is obtained, and the displacement of the pixel points between the pictures is converted into actual deformation of the foundation pit through a conversion coefficient.

Description

technical field [0001] The invention relates to an intelligent monitoring method, in particular to an intelligent monitoring method and system for foundation pit deformation, belonging to the technical field of foundation pit monitoring. Background technique [0002] Generally, foundation pits with a safety level of one or two are designed, or the excavation depth is greater than or equal to 5m, or the excavation depth is less than 5m, but the foundation pit with complex geological conditions and surrounding environment should implement foundation pit engineering monitoring. Engineering foundation pit deformation mainly includes vertical and horizontal deformation of the top of the foundation pit, horizontal deformation of the side wall of the foundation pit, and vertical deformation of the bottom of the foundation pit. [0003] The traditional method of foundation pit deformation monitoring is mainly to arrange professional deformation measuring instruments or sensors such ...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a method and system for intelligent monitoring of foundation pit deformation to solve the problem that the traditional foundation pit deformation monitoring method proposed in the above background technology requires monitoring personnel to set up measuring instruments around the foundation pit for observation, which is easily affected by the surrounding environment of the foundation pit. Due to limited conditions, there may not be enough space for observation or safety accidents may occur due to people falling from heights. In the reality of shortage of surveyors, high-frequency or continuous real-time monitoring cannot be carried out.

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