Most automatic doors use motion detection sensors or op […]
Most automatic doors use motion detection sensors or optical sensors installed on both sides of the door to trigger the opening/closing of the door. All automatic doors, regardless of their type or design, include sensors, which can help trigger opening/closing when needed. Let's take a look at the various sensors used in automatic doors:
Pressure sensor: In the 1960s, the'control pad' was used as a sensor to detect pedestrians. These mats detect weight/pressure changes in specific areas on the ground before and after the gate. If the weight of a specific area exceeds the set limit (the "trigger limit" is set to be lower than the average human body weight), the door will open. The advantage of using this system is that as long as there is pressure on the mat, or in other words, if someone is standing/walking near the door, the door will remain open. This not only allows quick entry/exit, but also prevents the door from "closing" on the individual.
Motion detector or optical sensor: Most automatic doors now use a motion detection sensor or optical sensor installed on the side of the door to trigger the opening/closing of the door. These sensors, as their name implies, detect or "look for" movement in front of the door. In these sensors, motion is detected by a microwave beam (10.5GHz) generated by an antenna mounted on the door head, which generally points downward and outward.