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Optical Triangulation Sensors are commonly used to provide door mounted safety detection on swinging automatic doors.These types of sensors are common in North America.When automatic swinging doors open and close, it is important that they do not come into contact with pedestrians passing through the door.
Electric eye for a garage door opener. An electric eye is a photodetector used for detecting obstruction of a light beam. An example is the door safety system used on garage door openers that use a light transmitter and receiver at the bottom of the door to prevent closing if there is any obstruction in the way that breaks the light beam. The ...
Laser based sensors increase the safety by learning the surroundings of the door and dynamically adapt their detection fields to only ignore the wall next to the door. Safety beam—this beam crosses the path of the user past the swing side. If interrupted, the operator assumes that a person has crossed into the swing area, and it is not safe ...
The simplest sensor consists of a light beam aimed across the opening: when the beam is broken by an obstacle, the operator prevents the door from closing. Infrared and radar safety sensors are also commonly used. Other sensors such as resistance-sensing motors can be used to reverse the closing action of the door after an obstacle is encountered.
Conceptual through-beam system to detect unauthorized access to a secure door. If the beam is interrupted, the detector triggers an alarm. A photoelectric sensor is a device used to determine the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver. They are largely used in ...
A pair of automatic doors. An automatic door, also known as an auto door, is a door that opens automatically, without the need for human intervention or usually upon sensing the approach of a person. A person can be detected by microwave pulses, infrared sensors, or pressure-sensing pads. [1]