Indoor worker off-duty detection method based on video monitoring platform

Abstract

The invention relates to an indoor worker off-duty detection method based on a video monitoring platform. The method includes processing a video subjected to pre-processing treatment by using an inter-frame difference method so as to acquire differential images of each two frames; defining a state machine and implementing dynamic switch among four states specifically including an off-duty state, asuspected on-duty state, suspected off-duty state and an on-duty state; judging the state of an operator on duty according to mean value of the differential images, entering the state machine if themean value of the differential images is not greater than 200, and holding the original state when the mean value of the differential images is greater than 200, in order to eliminate interference caused by photographing luminance surge in monitoring video; performing state machine parameter initiation, defining an off-duty timer and a variable, and changing the state variable and the off-duty timer according to the staff on-duty state information obtained through state machine switch.

Description

technical field [0001] The invention belongs to the field of intelligent video monitoring, in particular to a system and method for detecting vacant posts of indoor personnel based on an existing video monitoring platform. Background technique [0002] In today's rapidly developing society, there are more and more unstable factors in all walks of life, and people pay more and more attention to safety issues, especially in the field of security protection. In order to ensure the safety of the country's important security departments and important unit facilities, and maintain the long-term stability of the society, post duty has become an inevitable choice. If the on-duty personnel leave their posts without authorization during the on-duty period, it is likely to cause immeasurable losses. In order to prevent this situation, many enterprises and departments adopt supervision methods to conduct vacancy inspections, so as to take timely countermeasures and eliminate potential ...

AI Technical Summary

Problems solved by technology

For example, in the patent CN104021653A, through the video dynamic analysis camera, the video analysis alarm and the central video monitoring server to run the early warning, alarm, and SMS alarm, the function of video analysis and alarm of the crossing on duty status is realized, mainly based on whether the video frame image dynamically changes. Judging whether there is someone on duty; in the patent CN102740059A, an image analysis and tracking algorithm is used to supervise the person on duty, and a recognition algorithm is used to identify whether there is anyone in the image. When the accumulated unmanned time reaches the preset time parameter, the unattended supervision signal is sent to the control center, wherein The specific process of the human detection algorithm is not clearly mentioned, and there are only two states: no one and people

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