Secure method and system of video detection for automatically controlling a mechanical system such as a moving staircase or a travelator
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United States of America Patent
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Aug 12, 2003
Grant Date -
Jan 9, 2003
app pub date -
Jul 9, 2002
filing date -
Jul 9, 2001
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Expired
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Abstract
A method for detecting persons or objects in a detection zone covering a mechanical system that is to be controlled as a function of propel or objects being detected at present in the detection zone an initialization phase consisting in checking the hardware and software elements of a monitoring processor coupled to a control device for controlling the mechanical system; a processing loop comprises for active camera connected to the processor and covering the detection zone: acquiring and processing an image supplied by the camera in order to generate detection data and determine which commands to apply to the control device; and checking both the image quality and the position of the camera relative to the detection zone; and a phase in which the control device is controlled using commands determined in the processing loop and as a function of any faults detected while carrying out the checks.
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