Automatic doors have a way of knowing when to open. How?

The automatic door opens once the door controller activates the gear motor to drive the belt and pulley after receiving an activation signal from the sensor. After a predetermined amount of time, the Automatic boom barrier companies in India door begins to close if no one is seen inside the activation area.

There are three popular automatic door openers.


  • Utilizing a motion sensor is the most typical. Some motion detectors merely broadcast a sound at a frequency that is audible to us. Then, as the sound reflects off the surfaces near the door, it listens for variations in volume and tone. Some people employ a passive infrared sensor (PIR). The PIR measures the temperature differences between your body and the environment.
  • Sensor for break-beams. A light beam is cast across the door opening by a break beam sensor. Additionally, a sensor is situated directly opposite the light emitter. The door opens when someone approaches it, breaking the light's beam in the process. On garage door openers, these are frequently employed as safety sensors.
  • A pressure plate on the floor in front of the door is used in the most straightforward type. A circuit is finished, and the door is opened by stepping on the scale.
  • Compared to optical door sensors, infrared sensors have one advantage. Even when a person is motionless in front of the door, they are activated. These sensors pick up on changes in thermal energy that pass in front of them. The door will slide open if a person walks across the sensor's field of vision because the sensor will detect the temperature change brought on by body heat.


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