It's an analog sensor.
Because the signal perceived by the human infrared sensor is an analog signal, it needs to be processed by analog signal, and then output digital signals after signal amplification and filtering operations, and then further processed by the controller.
If it is a digital sensor, the digital signal can be directly output to the controller without analog signal processing.
Therefore, the human body infrared sensor belongs to a kind of analog sensor. In addition, the application of human infrared sensors is very wide, such as infrared radiation detectors, security monitoring systems, smart home systems, etc., can not be separated from human infrared sensors. In the field of smart home, human infrared sensors can control the opening and closing of lights, televisions, and electrical appliances, which has great convenience and energy saving effects.
In the future, with the continuous update and iteration of science and technology, human infrared sensors will have a wider range of applications.