Positionable wearable fall detection system for elderly assisted living applications

Along with the degradation of the body function, the elderly are more likely to fall accidentally. And if they don´t get timely and effective help, severe consequences may take place, even to death. Traditional medical monitoring equipment are bulk and not convenient to carry, difficult to achieve real-time monitoring of anytime and anywhere. This article designs a positionable wearable fall detection system based on GSM, GPS and ZigBee, using tri-axis acceleration as monitoring objects, transmitted by ZigBee, positioned by GPS, using GSM to send position and alarm short messages, fall action judged by PC using a fall detection algorithm which can distinguish falling down and daily activities.