The glass automatic door sensor is a kind of sensor product that belongs to the control sensor category. It realizes the automation of the door switch through microwave and infrared induction.

Automatic door sensors are mainly used for automatic doors, revolving doors, etc. There are two main types of glass automatic door sensors, automatic door microwave sensors and automatic door infrared sensors.

Glass automatic door sensor

1. Microwave sensor: also known as microwave radar, it reacts to the movement of objects, so it has a fast response speed and is suitable for places where people with normal walking speed pass. Its characteristic is that once people near the door do not want to go out and stay still , The radar will no longer respond, the glass automatic sensor door will be closed, and there may be a person trapping accident.

2. Infrared sensor: It responds to the existence of objects, no matter whether the person is moving or not, as long as it is within the scanning range of the sensor, it will respond. The reaction speed of infrared sensors is slower than that of microwave sensors.

Introduction to the working steps of automatic door sensor

When the glass automatic door sensor detects someone entering, it sends a pulse signal to the main controller. After the main controller judges, it notifies the motor to run, and at the same time monitors the number of motor revolutions, so as to notify the motor to increase force and enter slow running at a certain time. After the motor gets a certain running current, it runs in the forward direction, and transmits the power to the timing belt, and then the timing belt transmits the power to the spreader system to open the door leaf; after the door leaf is opened, the controller makes a judgment. If the door needs to be closed, the motor is notified to reverse Move towards, close the door leaf.