Provided is a drying system capable of determining if the number of onoff switching unitings of a heating mechanism exceeds a preset number over a preset duration, and reducing the amount of heat that the heating mechanism radiates, in order to extend the service life of the heating mechanism and a switching uniting mechanism. The ultrasonic motor includes the vibrating body having a piezoelectric element, and a moving body which contacts the vibrating body. The first identifying code and the second identifying code are captured, and paired. The user is thus able to better identify the information signals. The present invention also proposes a corresponding method. The override condition is terminated when the vehicle is turned off, or when the operator deactivates the manual override switch.