Method and system for smart construction site area management and intrusion detection based on video images

Abstract

The invention belongs to the technical field of intelligent construction site management, and discloses a method and system for intelligent construction site area management and intrusion detection based on video images. The Gaussian model models the background of the video image, extracts the foreground image containing the moving target; performs median filtering and morphological preprocessing on the foreground image, extracts the connected domain features and LBP texture features of the moving target, and adopts a two-level tracking strategy; Intrusion detection is performed on each extracted moving target and the detected area in the image; for detected illegal intrusion events, an audible and visual alarm signal is issued according to the regional management regulations. The tracking strategy of the moving target in the present invention adopts the two-level tracking strategy of the connected area block feature and the LBP feature, which ensures the real-time performance and accuracy of the target tracking.

Description

technical field [0001] The invention belongs to the technical field of smart construction site management, and in particular relates to a video image-based smart construction site area management and intrusion detection method and system. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: [0003] At present, our country is in the stage of large-scale construction of various infrastructures. In 2017, more than 600,000 construction sites are under construction, and the investment is large. At the same time, my country's infrastructure construction is in the transition stage from extensive to intensive. It is urgent to improve management level, reduce costs and increase efficiency. There are many types of construction sites, the site characteristics are also different, and the site conditions are constantly changing, but there is one thing in common: they will be managed in different areas, such as: dangerous area...

AI Technical Summary

Problems solved by technology

[0006] (1) Electronic fences are used for regional division management. In complex construction sites, there are physical boundary problems first. When the area monitoring is temporarily disabled for construction related to the area, the physical isolation itself becomes an obstacle.

Although there is no such problem in the way of infrared radiation, the false alarm rate of the infrared radiation method is high in outdoor and complex environments, and it is mainly suitable for indoors.

[0007] (2) The current personnel positioning solution solves the problem of where the known people or things are, and cannot complete the problem of breaking into unknown targets

[0008] (3) Insufficient adaptability to site changes

[0009] (4) Positioning accuracy problem

The positioning accuracy of the current wireless positioning system is in "meters", and is greatly affected by the environment and is not stable

The area of ​​a certain monitoring area on the construction site may only be a few square meters, which is obviously difficult to meet the requirements in terms of accuracy.

[0010] (5) Application cost issues

In addition to the above problems, the current regional management system is an independent subsystem, which requires initial installation and maintenance. It is an additional cost for on-site management, and it is not cheap. The initial installation cost ranges from tens of thousands to tens of thousands. tens of millions

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