Study on autoalarm of body slipping up by short message of mobile telephone
Dai Yu-hang · Computer Engineering and Applications Journal · 2008
Though the study of automatic alarm method on body slipping up,propose a kind of technology to detect the signal of falls and send alarm GSM Short Messages (SMS).The detection system is mainly composed of a low power MCU MSP430F449,an acceleration sensor MMA7260Q and the GSM module.By using the AT instruction program,the MCU can control the GSM module to send SMS.The system can detect the body slipping up signal about gradient or vertical or impact signal.It also can eliminate the error alarm signal in the appointed time,so the system alarm is veracious.Via the experiment of the stance simulation about error alarm,no miss alarm and no false alarm happen,which proves that the technology is feasible and has its practical value.