Research Of Household Security Monitoring System Based On Mobile Intelligent Terminal

Nowadays,with the popularization of mobile intelligent devices and the continuous development of live video technology,video processing and video transmission technology are gradually applied into video monitoring.Security monitoring for old solitary people is becoming one of the important topics of research.Through fail and try,researchers have proved that fall detection can be achieved effectively through the video data processing,which provides a good way to care for the old solitary people.At the same time,the privacy issues attract peoples' attention because of the video monitoring.Through reading related literature and doing experiments,this study aims to establish a convenient and effective video monitoring system,having the function of fall detection.This system consists of four modules:video capturing,video transmission,video receiving,video displaying and fall detection.Video collection is based on the embedded development platform and uses USB camera.Video acquisition have the fall detection module,the processes of which are as follows:video pre-processing,moving object detection,moving object extraction,obtaining contour of moving object and drawing rectangular envelope,extracting motion parameters,fall detection and alarming.And fall detection is based on the checking the ratio of width and height,the moving rate of center and the ratio of effective area.The alarming signal would be send to the Android Mobile Phone through the cloud platform.Video transmission consists of' these main steps:video coding and encapsulating.uploading video stream to server.The Android devices would receive real-time video stream after decoding and display the video.The alarming signal could be obtained from the server timely.The Android module also provides privacy protection mode for regulators to choose from.