On the principle of induction of automatic doors
No matter what kind of object as long as it is moving, it can be sensed to, if it is still it can not be sensed!
Automatic door sensor, probe is the eyes of the automatic door control system, sensor sensors through the induction sensor to the pedestrian or moving objects, this signal into a passive dry contact short-circuit signal transmission to the automatic door controller, in order to achieve automatic door open . Automatic door sensor classification: common sensor according to the principle is divided into two categories, one for the microwave sensor, one for the infrared sensor. According to the sensor distance can be divided into: convenience store popular sensors, long distance sensors.
According to the appearance and installation location is divided into: conventional sensors, ceiling sensors, etc. Microwave sensor principle: based on a unique microwave transmission technology, the ultra-thin antenna can achieve a variety of spectrum;
