Proximity detection system for doors and the like

Details Proximity detection system for doors and the like Proximity detection system for doors and the like

G - Physics

01

S

349/33, 340/79,

G01S 15/88 (2006.01) B66B 13/26 (2006.01) E05F 15/00 (2006.01) E05F 15/20 (2006.01) G01S 17/02 (2006.01) G01S 17/87 (2006.01) G01S 17/88 (2006.01) H04B 3/54 (2006.01)

Patent

CA 1285627

2651 ABSTRACT A movable door incorporates a proximity detection system for sensing obstructions in the path of the door. The system comprises an array of transmitter/receiver pairs (21, 22 and 23), each pair comprising a transmitter (1) for transmitting an energy pulse, a receiver (2) located adjacent the transmitter and directed to to receive any reflected transmitter pulses, and a shielding (3) for shielding the receiver (2) from receiving energy pulses directly from the transmitter (1). At least two transmitter/receiver pairs (21, 23) are mounted on a leading edge or face of the door (12) to transmit energy pulses in a direction which is not at right angles to the leading surface or edge of the door, to monitor for obstructions in the path of the door (12). Another two transmitter/receiver pairs (26 and 28) are mounted on the leading edge or surface of the door (12) to transmit energy pulses at right angles to the surface or edge of the door (12). One of the latter two receiver pair (26) has a different response to the other pair (27) so that when the door (12) approaches a stationary object the one pair (26) detects the object ahead of the other pair (27). Means are provided to respond to the output of the one pair (26) indicating the detection of an object to inhibit the output of the other pair (27).

522201

Affiliated with

Also associated with

Rating

Proximity detection system for doors and the like does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Proximity detection system for doors and the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proximity detection system for doors and the like will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1259423