How automatic sensing doors work

When the automatic door sensor detects that someone enters, it transmits the pulse signal to the main controller. After the main controller judges, it notifies the motor to run, and monitors the motor rotation number. The sensor uses the chip to notify the motor to force and enter the slow running at a certain time. . After the motor obtains a certain running current, it performs forward operation, transmits the power to the timing belt, and then transmits the power to the spreader system by the timing belt to open the door leaf. After the door is opened, the controller makes a judgment. If the door needs to be closed, the motor is notified to perform reverse movement and the door leaf is closed. When the inductive detector detects that someone wants to enter, the signal is transmitted to the main controller. After receiving the information, the main controller notifies the motor to run and monitors the number of revolutions of the motor, and notifies the motor to accelerate or slow down at a certain time. After the motor receives the information and some current, it performs the forward motion, and then transmits the power to the timing belt. The timing belt transmits the power to the spreader system to open the door leaf. After the door leaf is opened, the controller determines whether it needs to close the door. The controller then notifies the motor to make a reverse motion, closes the door leaf, and so on.

Also known as microwave radar, it reacts to the movement of objects, so the reaction speed is fast. It is suitable for places where people with normal walking speed pass. It is characterized in that once the person near the door does not want to go out and is still, the radar will no longer respond. The automatic door will be closed and there may be a phenomenon of pinching.

Infrared sensor

Reacts to the presence of an object, regardless of whether the person is moving or not, as long as it is within the scanning range of the sensor, it will react. Infrared sensors respond more slowly than microwave sensors.

Clean the oil and dust inside the chassis; check the wear of the parts of the automatic sensing door, check the deviation of the automatic door and the tightening of the screws; check the tightness of the belt; check the output of the controller, the width of the door, the speed, and the brake Wait for the situation; check whether the voltage parameters are normal; repair or replace the damaged parts; the owner also needs to pay attention to the regular maintenance and maintenance of the automatic door. Due to the influence of the installation quality and the use environment, the automatic door will inevitably have problems during use. If the long-term lack of maintenance, the hidden dangers and glitch of the automatic door will not be processed in time, it will turn from a small fault to a big fault, which may eventually lead to the failure of the automatic door.

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Label: How automatic sensing doors work

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