Motion discontinuance detection system and method

Details Motion discontinuance detection system and method Motion discontinuance detection system and method

G - Physics

01

P

340/124.4

G01P 13/00 (2006.01)

Patent

CA 1207863

MOTION DISCONTINUANCE DETECTION SYSTEM AND METHOD ABSTRACT OF THE DISCLOSURE A motion detection system is disclosed which uti- lizes a lens or other imaging means to be responsive to motion in a particular field of view in a room, for example, and pass illumination to a photoelectric means. The photo- electric cell or a screen in front thereof establishes an image distortion means so that there is a nonuniform electri- cal output from the photosensitive means upon motion of ob- jects in the given field of view. The nonuniform electrical output establishes pulses which are passed to a timer and continually reset the timer so long as there is motion detected. Upon discontinuance of any motion in the field of view, no further pulses are passed to reset the timer, and the timer times out to de-energize an electrical load. This may be an electrical lamp illuminating the field of view, or it may be an electric soldering iron or typewriter which is de-energized when the person has left the room. The fore- going abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.

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