Embedded System For Monitoring Human Activities Using 3-axis Accelerometer

Abstract

The last decade has witnessed a surge of interest in new sensing and monitoring devices for health care. In several medical and non-medical applications it is necessary to measure the human activities. Detection and monitoring of human activities requires the use of external sensors around the body. The reported design provides a systematic approach for characterization of states. The design employs a 3-axis accelerometer, a microcontroller and RS232 based communication protocol for sensing the activities of a person and the output will be seen on a PC with a graphical user interface. Experiments were conducted on human test subjects and various samples are collected to estimate the accuracy of the system. The major achievements of the system are improved accuracy and precision than the previous proposed systems. The proposed system minimizes the caregiver's effort and serves a good monitoring system for bedridden elderly person.