Investigating Satisfaction and Usability of an Embedded Multi-Sensors Based Autonomous Walker Assistive Device

ABSTRACT The ability of the elderly to live freely depends on the living space and resident safety. An assisted living solution was developed to reduce the number of falls and increase the mobility of the elderly. A smart assist tool based on a traditional medical walker was modified. The Atmega328p microcontroller interfaces with multi-function sensors and modules that can detect obstacles and notify users. A walker with an integrated force sensor was carried out to assess how much strength a person can generate. Users' satisfaction responses related to the QUEST questionnaire were assessed using a set of ten items. The walker received great marks for user satisfaction. The three most crucial elements were safety, haptic feedback, and comfort. The most unsatisfactory issue was found to be the weight issue. Interviews were conducted with a total of twelve volunteers. As a result, the recommended walker encompasses all aspects of aged care in addition to providing support and assistance