The invention discloses an old people tumble alarm
system and method based on multiple sensors, and relates to the technical field of intelligent monitoring, and the
system collects the body data of old people through an intelligent bracelet and a sensor group, transmits the body data to a cloud platform through a
wireless network, carries out the
processing, and generates a state data group. The acceleration modulus length, the
angular velocity modulus length, the
gait cycle and the posture angle of the old people are calculated, so that the motion state and the
falling risk are accurately judged, a
falling risk assessment coefficient is calculated based on the data, old people falling assessment is performed according to the
falling risk assessment coefficient and a preset falling
risk threshold value, and an alarm is triggered and a guardian is notified when the risk exceeds the standard. The
heart rate variability index and the blood
oxygen content are analyzed, a comprehensive
health index is obtained through calculation, possible body injury after falling is evaluated, and injury alarm information is generated. The
system can accurately monitor the health state of the old people in real time, timely send out early warning and alarm information, and provide comprehensive
fall prevention and health monitoring guarantee.