Abstract: A temperature measuring method capable of switching calculation based on displacement detection includes a temperature measuring instrument and a displacement detecting unit. When the displacement detecting unit feeds back that the temperature measuring instrument is under an inactive state, a point calculation formula A is used to calculate and obtain a body temperature value. When the displacement detecting unit feeds back that the temperature measuring instrument is under an active state, a scanning calculation formula B is used to calculate and obtain the body temperature value.

Abstract: A nasal aspirator capable of effectively preventing backflow and a control method thereof are disclosed. The nasal aspirator includes a casing, a control board, a lower suction nozzle, an upper suction nozzle, a liquid storage cup, and an air pump unit. The control board is disposed in the casing. The lower suction nozzle is disposed on an upper end of the casing. The lower suction nozzle has a chamber and a suction passageway therein. The chamber has an opening facing upward. An upper end of the suction passageway communicates with the chamber. A detection system for detecting a liquid is provided in the chamber. The detection system is connected to the control board.