Based On Kinect's Fall Detection Alarm Monitoring System

With the situation of the global aging and empty nest intensified, the health problems of the old people have attracted more attention of the society. Among them, falling has become the first killer of the elderly accident, there are about 300,000 elderly people who die from falls each year all over the world and 40 million elderly people who fall down at least once each year in china. The aged will miss the best opportunity of therapy because they can not help themselves and increase the cost of treatment and mortality. For example, the people will die up to 80% mortality rate if he can’t get the prompt rescue after faint because of the first heart attack.The system realizes the fall detection and alarm in fixed area under different illumination conditions. Firstly, calculating the two human characteristics: the average height of the detected joints and the the speed of the joints over the head and shoulders, and distinguishing the fall event by the threshold method. After detecting the fall, the speaker sounds to get the attention and help from around people, and it sends messages by GSM module and mails using SMTP protocol to the guardians and the community management staffs simultaneously.The system also implement the server of the real-time monitoring. It maily implements the conversion from the RGB format data captured by kinect to the YUV420 format data, compresses the data based on the H.264 compression coding standard, controls the transmission by the RTSP protocol, packages the encoded data based on the RTP protocol and sends the packages to the aodianyun’s server by the publishing address. The guardians and the community management staffs can examine the situation of the scene by loging in the playing address with browsers.Through experiments, the accuracy of fall detection of the system can reach more than 96%, and at the same time the aged can get 24-hour real-time monitoring. It has some practical value!...