Tools for the Care of Elderly People Applying Information and Communications Technology to Fall Risk Assessment
Assistive devices have been used to improve the quality of life in elderly society, and information and communication technology (ICT) and robotics have been applied extensively to this end. Falls are a common problem and fall risk assessments are created. This study involved assessment related to an application of information technology. First, to monitor and record falls during daily activities, wearable inertial sensors were used . The threshold of acceleration was used to detect falls. To prevent injury during falls, we also developed a wearable airbag system using an accelerometer, angular velocity, and airbags. The subjects wore the airbag vest with a motion detection belt. When the subject fell, the combination of acceleration and angular velocity signals detected the fall and inflated the airbag.