To enhance the home safety of elderly individuals living alone, a wireless home emergency safety bell combined with a fall detection system has been developed. Utilizing mmWave millimeter-wave radar technology, the system measures variations in distance, speed, height, time, and posture of objects. It performs human posture analysis to identify fall incidents. Upon detection, an alert is immediately sent to the 24-hour care and emergency support center operated by the Familyguard Association for prompt follow-up.