The Research of Energy Expenditure Detection Algorithm Based on Tri-Axial Acceleration Transducer

Aiming at the importance of the detection of physical activity energy expenditure(PAEE),a new system of detecting PAEE based on tri-axial acceleration transducer was presented.With collecting and analyzing data,a method for calculating the acceleration and a new algorithm of detecting PAEE was developed.Having done the comparative experiments between waist,knee and lip,the best position to wear the device is determined to be in the waist.The experiment with three different running speeds(1 km/h,5 km/h and 10 km/h)was also done.The experimental results showed that the accuracy of the system was above 93%.The system and interrelated algorithms was workable.