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.