Undetected fatigue is a major concern for long-distance drivers. iCabinGuard offers continuous monitoring of the driver’s status and provides real-time fatigue warning to ensure driving safety. It integrates a miniaturized physiological sensing radar and a flexible antenna into the car seat or cushion, wirelessly collecting data such as the driver’s vital signs and seating posture. Combined with proprietary AI fatigue analysis software, the device alerts the driver to potential risks. Compared to existing driving safety alert systems on the market, iCabinGuard boasts three key features: portability, easy installation, and wireless connectivity to personal handheld devices. It is expected to be widely applied in driver health protection and occupational safety management.