Design of Temperature Measurement Identification Instrument based on OpenMV and MLX90614

A non-contact temperature measurement and recognition device based on OpenMV camera module and MLX90614 temperature recognition module is designed. OpenMV is used for identification and MLX90614 module is used for initial temperature measurement. The measured data can be compensated and posted on the LCD screen. Identity recognition adopts multi-template storage, LBP value and threshold value comparison and matching method, after multiple verifications, the accuracy rate reaches 94%. Temperature measurement adopts Kalman filter algorithm to reduce instrument error. The error range of measured object temperature after algorithm compensation is closed to 0.2 centigrade, and the error range of body temperature measurement is 1.7 centigrade. Finally, if the identification process fails or the temperature measurement value is higher than the preset value, the buzzer and LCD screen will issue a warning.