Steering Wheel Hands-Off Detection (HOD) is a key technology in Advanced Driver Assistance Systems (ADAS) for vehicles. It monitors whether the driver's hands have left the steering wheel to ensure driving safety in autonomous driving or assisted driving modes. Given that autonomous driving technology is not yet fully mature, assisted driving functions still require the driver to take over the vehicle at any time. Hands-Off Detection can issue a warning when the driver's hands leave the steering wheel, reminding them to grip the steering wheel again, thereby avoiding potential risks. This steering wheel adopts capacitive detection technology. A capacitive hands-off detection system usually consists of a hands-off monitoring controller and a sensor pad. The sensor pad is integrated between the steering wheel frame and the leather, forming a capacitive field. When the driver's hands approach or touch the steering wheel, the capacitive field changes, and the sensor determines whether the hands have left the steering wheel by detecting this change.