A novel method for energy expenditure using multisensor based activity monitoring

In daily life, walking is an one of the most energy consumed activity. There are many researchers focuses on energy expenditure estimation using GPS and 3-axis accelerometer for location tracking and activity monitoring. However, in the case of walking on a slope, GPS location tracking method and 3-axis accelerometer method are failed to estimate the energy consumption while walking on a slope. In this study, we combining the information of GPS, the information of INS in smart phone and also the slope information from Google elevation database to estimate activity energy expenditure. Energy expenditure in static movement is calculated using accelerometer data. Therefore, the energy expenditure calculator is capable to calculate energy expenditure in static movement and also in dynamic movement. Experiment result shows that the increase in elevation in slope, there is an increase in activity energy expenditure. We also shows there is higher energy expenditure when jumping.