Video image based intelligent construction site regional management and intrusion detection method and system

Abstract

The invention belongs to the technical field of intelligent construction site management, and discloses a video image based intelligent construction site regional management and intrusion detection method and system. The method includes: automatically recognizing an area divided by placement markers in a monitoring area based on a video monitoring image, adopting a mixed Gaussian model to model avideo image background, and extracting a foreground image containing a moving object; performing median filtering and morphological preprocessing on the foreground image, extracting connected domain features and LBP texture features of the moving object, and adopting the two-level tracking strategy; performing intrusion detection on each extracted moving object and the region detected in the image; sending a sound and light alarm signal according to a regional management specification for a detected illegal intrusion event. The tracking of the moving target adopts the two-level tracking strategy of the connected domain block features and the LBP features, thus ensuring the real-time property and the 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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