Elevator car passenger detection system and method

Abstract

The invention provides an elevator car passenger detection system. A camera for collecting videos in a car in real time is arranged in the elevator car. The detection system comprises an image processing unit, a background updating unit and a judgment unit, wherein the image processing unit is used for obtaining brightness information of each pixel point in each image frame in the videos shot by the camera; the background updating unit is used for obtaining and updating a background image by comparing brightness differences of corresponding pixel points in two adjacent image frames; the judgment unit is used for determining that no person is in the elevator car when the brightness difference of a current image frame and a pixel point of the background image is smaller than a first threshold value, and determining that a person is in the elevator car when the brightness difference of the current image frame and the pixel point of the background image is not smaller than the first threshold value. The invention further provides a corresponding method. The image frames of the on-site videos collected by the original camera in the elevator car are compared with the background image, and accordingly whether the person is in the car can be judged, extra detection devices do not need to be increased, and whether the person is in the car can be accurately judged.

Description

technical field [0001] The invention relates to the field of elevators, and more specifically, to a system and method for detecting people in an elevator car. Background technique [0002] With the development of society, elevators are increasingly important as a means of transportation for upper and lower floors in high-rise buildings. The new generation of information technology - Internet of Things technology is also more and more applied to the elevator system. The real-time monitoring video and real-time status information of the elevator in the elevator Internet of Things system (including the floor, the opening and closing status of the elevator door, the running direction, etc.) can provide users at all levels with more intuitive, clear, accurate and stable monitoring of the elevator running status. Equipment maintenance and fault diagnosis offer a wide range of possibilities. [0003] The elevator IoT system generally adopts the method of adding an infrared module...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an elevator car personnel detection system and method for the above-mentioned problem of increased cost and low accuracy of using infrared detection for elevator car personnel

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