Patent ID: 7940300
Filing Date: 2011-05-10
Classification: E05F,E05Y,H04N

Abstract:
1. A door controlling system comprising: a video imaging device that monitors at least a door panel and a door panel travel area through which said door panel moves between said open and closed positions, said video imaging device being operable to receive images of the door panel within the door travel area; a detection system comprising a video signal processor and a memory, said video signal processor capable of communicating with said video imaging device, said memory containing a plurality of stored initial images of the door panel within the door travel area, each of said stored initial images corresponding to one of a plurality of positions of the door panel within the door travel area; a door operator constructed and arranged to be operatively connected to said door panel and adapted to communicate with said detection system, said door operator operable to move the door panel between the open and closed positions through the door panel travel area; a position sensor communicated to said detection system for monitoring the positions of the door panel within the door panel travel area; and the detection system operable to determine whether a person or object other than the door panel is within the door panel travel area by comparing the images of the field of view, including the door panel therein, against the stored initial images of the door panel within the door travel area for the corresponding positions of the door panel as monitored by the position sensor.