In recent years, smart home devices and systems have been health-oriented, IOT-oriented, and people-oriented. Infrared sensing, voice and semantic recognition, facial recognition, smart security, Wi-Fi control, smart cloud, gesture recognition and other sensing technologies lead the current market in the smart home field. As a long-distance non-contact temperature measurement technology, infrared thermal imaging can be applied in the sensing terminals for smart homes without violating privacy, achieving such functions as temperature measurement, judgment of personnel location and posture, and fire monitoring.