How automatic door works
来源： 索葛电子 Release time: 2017-03-07Source : Soge Electronics
First let's talk about his working principle:
When someone enters, the automatic sensor sends a pulse signal to the main controller. The main controller judges the motor to run after monitoring. At the same time, it monitors the number of revolutions of the motor. The sensor uses the chip to notify the motor to increase power and enter slow running at a certain time. After the motor obtains a certain running current, it runs in the forward direction, transmitting power to the synchronous belt, and then transmitting the power to the spreader system to open the door leaf. After the door is opened, the controller will make a judgment. If the door needs to be closed, the motor will be notified to reverse the movement and close the door, and the cycle will continue.
Automatic induction door is divided into two types of induction: microwave induction and infrared induction.
The microwave sensor responds to moving objects, so it has a fast response speed and is suitable for places where people with normal walking speeds pass. Its characteristic is that once the people near the door do not want to go out and stay still, the radar no longer responds.
The infrared sensor responds to existing objects, regardless of whether the object is moving or not, as long as it is within the sensing range of the sensor, it will respond.