Infrared non-contact testing has great prospects under epidemic prevention and control. The current infrared thermometer on the market generally has low-temperature measurement accuracy and weak anti-interference. This paper designs and implements an infrared thermography thermometer, which can detect the body temperature of a wide range of people at the same time, quickly find out the abnormal temperature of people, and issue alarms through the implementation of powerful front-end processing and back-end conversion algorithms, outputting high-quality infrared thermography video with full-screen detection, non-contact, fast, and intuitive characteristics. The thermometer implemented in this paper is as high as ±0.2℃ in temperature measurement accuracy, optimizes the correspondence between grayscale value and temperature, and designs the temperature control system to make corresponding compensation for ambient temperature and testing distance. The experiment proves that the pyrometer designed in this paper has strong anti-interference and high accuracy, and can be applied to various application scenarios.
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