Signal sensing principle of automatic door
The reason why the automatic door can operate freely is mainly due to the sensor information of the door opening signal, which shows the nature of the door opening signal for the automatic door. There are two main types of door opening signals for automatic doors in the current market: The first type-microwave radar. This kind of door opening signal is a response to the displacement of the object, so the reaction speed is fast, and it is suitable for places where people with normal walking speed pass. Its characteristic is that once the people near the door do not want to go out and stand still, the radar will no longer respond. , The automatic door will be closed, which has a certain protective effect on the door machine. The second type-infrared sensor. This kind of door opening signal responds to the existence of objects, no matter whether the person moves or not, as long as it is within the scanning range of the sensor, it will respond and send out a contact signal. However, the d...