automatic door sensor how it works？

When you gone to supermarket,getting ready to leave the supermarket,your hands are full of bags.The automatic door is very important.It can help you open the door.So are you interesting in how do automatic doors work?

Automatic Door Sensors are the key part of this advanced technology. These days, most automatic doors use motion detection sensors or optical sensors, which are installed on the sides of the door, to trigger the opening/closing of doors. These Automatic Door Sensors, as their names imply, detect or ‘look for’ motion in front of the gate. In these sensors, motion is detected by a microwave beam (10.5 GHz) produced by an antenna that is installed on the door header and generally points in the downward and outward direction.

These Automatic Door Sensors are quite effective, but have one major shortcoming: they can only detect motion. Therefore, a person who is standing still or walking very slowly (like senior citizens) might not be detected, which can lead to accidents or struggles to get the door to open.

The MicroRay is the first sensor to fully safeguard the hinge door edge of automatic doors while the TOF/Taxi uses Time-of-Flight technology to safeguard the leading edge of these doors when opening and closing. 

A ToF camera uses infrared light (lasers invisible to human eyes) to determine depth information - a bit like how a bat senses it surroundings. The sensor emits a light signal, which hits the subject and returns to the automatic door sensors. The time it takes to bounce back is then measured and provides depth-mapping capabilities. 

After the automatic door sensors detect the presence of an individual, the job of actually opening/closing the doors must be completed. automatic door sensors are connected to an electronic drive train, which is attached to the panels of the door through an auxiliary drive or cog wheel. The auxiliary drive is connected by rubber belts that regulate the opening and closing motions of the doors. At the bottoms of these doors are rollers that allow the doors to slide smoothly.

Advancement in automated door systems and their rapid adoption has resulted in unique solutions to impending industrial problems, especially those pertaining to the hospitality and healthcare sectors. Let’s look at some of the significant advantages of having automatic doors in this day and age.