Falling Detection Device for the Elderly Based on Short Message of Mobile Phone
Zhao Ru-ru · Chinese Medical Equipment Journal · 2012
Objective To design a falling detection device based on the short message of mobile phone for the elderly. Methods The detection system was composed of a low power microcontroller STC12C5204AD,an acceleration sensor MMA7260Q and a TC35 GMS module.The falling event was judged by the acceleration sensor,and then with the AT command,the microcontroller could conduct the message module to send SMS.ResultB There were four groups of experiments done by the A,B testers,25 times for each group respectively,including:group 1 normal walking or standing; group 2 siting down quickly;group 3 forward,backward,falling sideways;group 4 jumping up and down.Statistically,group 1 pre-alarmed 5 times,alarmed 0 times,group 2 pre-alarmed 5-15 times,alarmed 0 times,group 3 pre-alarmed 25 times, alarmed 25 times,group 4 pre-alarmed 15-23 times,alarmed 0 times.Conclusion Through the human body wearing experiment,this detection system can distinguish falling event from normal activities,and raise falling alarm automatically to guarantee the user getting timely and effective medical care.