Patent ID: 7762022
Filing Date: 2010-07-27
Classification: E05F,E05Y

Abstract:
1. A method of controlling a swinging automatic door comprising: (a) providing means for acquiring images of a first area where the door swings when opening or closing, wherein the means for acquiring images is stationary; (b) providing means for detecting motion in a second area that fronts a non-swinging side of the door when said door is closed, wherein the means for detecting motion is stationary; (c) causing the means for acquiring images to acquire a first image and a second image of the first area when the door is closed and open, respectively, and the first area includes no object that would interfere with the opening or closing of the door; (d) causing the door to transition from closed to open when the means for detecting motion detects motion in the second area and a third image of the first area acquired by the means for acquiring images when the door is closed is the same as the first acquired image; (e) temporarily ceasing at least one of the following when the door is opening: the acquisition of images from the first area or the processing of images acquired from the first area; (f) causing the door to transition from open to closed when a fourth image of the first area acquired by the means for acquiring images when the door is open is the same as the second acquired image and the means for detecting motion does not detect motion in the second area; and (g) temporarily ceasing at least one of the following when the door is closing: the acquisition of images from the first area or the processing of images acquired from the first area.