Electronic door closing device and sensor for detecting moving objects by microwaves, namely, an opto-electronic device designed to detect the presence and movement of persons or objects on the elevator landing by use of an electromagnetic wave sensing device provided at the upper part of the elevator car entrance, which senses the infrared rays or micro-waves radiated or reflected by passengers coming close to the car and generates signals for controlling the open/close operation of elevator doors.
Electronic door closing device and sensor for detecting moving objects by microwaves, namely, an opto-electronic device designed to detect the presence and movement of persons or objects on the elevator landing by use of an electromagnetic wave sensing device provided at the upper part of the elevator car entrance, which senses the infrared rays or micro-waves radiated or reflected by passengers coming close to the car and generates signals for controlling the open/close operation of elevator doors.
