Low Power ASIC for Monitoring Human Motion Activity
Fumihiro Washino, Yuki Matsumoto, Tomoya Tanaka, Koji Sonoda, Kensuke Kanda, Takayuki Fujita, Kazusuke Maenaka · IEEJ Transactions on Sensors and Micromachines · 2015
We designed and evaluated low power ASIC (Application Specific Integrated Circuits) for the human activity and health monitoring systems to reduce the total power consumption. The ASIC extracts walking and running steps and holds the maximum and minimum values from raw data of acceleration sensor. To realize ultra-low power consumption, the algorithm is designed to reduce the amount of the data calculation for pedometer. Power consumption was reduced to 15% from previous prototype system by using the designed ASIC.