Infrared temperature measurement method, device and system

The invention relates to an infrared temperature measurement method, device and system. The method comprises the following steps: receiving an analog signal and a real-time temperature value of a detector, and converting the analog signal into an initial digital signal in real time; filtering the initial digital signal according to a real-time temperature value of a detector to obtain a target digital signal; and according to the target digital signal and a pre-constructed temperature-digital signal relational expression, obtaining the measurement temperature of the target object. According to the real-time temperature value of the detector, the initial digital signal corresponding to the infrared radiation energy of the target object is filtered to obtain the target digital signal; and the measured temperature is obtained according to the function relationship of the temperature-digital signal, so that circuit noise caused by temperature fluctuation of the detector is reduced, large fluctuation of the measur