What is the principle of automatic door?

Automatic door refers to a control unit that can recognize the action of people approaching the door (or some kind of access authorization) as an opening signal, open the door through the driving system, and then automatically close the door after people leave, and control the opening and closing process.

All automation is based on three points:

1) induction;

2) actuator;

3) algorithm.

Traditional automatic doors are very important for the current market and technicians. Smart doors have also appeared recently. An intelligent automaton that can be matched with the intelligent system will give the automatic door an opening signal, and the automatic door will open. A technician who has been engaged in the automatic door industry for many years can make a simple door device. It is said that this equipment has strong combination and high openness. The principle is simple. When you pass the door, the probe (technical term infrared sensor) in front of the automatic door will sense the infrared ray you send, and then the relay in the sensor will close, giving the internal controller of the automatic door a signal to open the door. The motor will start running and the belt will drive the automatic door to open. After a certain period of time, the automatic door will automatically close. Some companies or office buildings do not use sensors, but use access control credit card machines and fingerprint machines. When the access control card reader or fingerprint reader verifies your identity, it will give an opening signal to the automatic door, and the automatic door will open. A technician who has been engaged in the automatic door industry for many years will simply answer: the induction automatic door has a microwave transmitter above the door body. When an object moves in the sensing area, the wavelength of the electric wave emitted by the microwave transmitter on the door body will change, and then the microwave transmitter will feed back a signal to the controller of the automatic door, and the door body will drive the door body to open through the motor device.