To develop a single-platform (JOYAi) synthesize and apply existing devices to maximize their ability and benefit the elderlies and their carers by providing real-time information and alert. To ensure more timely and effective response to elderlies and their carers, minimize the carers' stress. The JOYAi can also share the information to other social service providers and suggesting service referral when needed, increasing the participation of related service provider for assisting user to tackle their challenges