G - Physics – 08 – B
Patent
G - Physics
08
B
340/124.1
G08B 1/08 (2006.01) G07C 9/00 (2006.01)
Patent
CA 1143816
Object and People Counting System Abstract The perimeter of an area is scanned along two adjacent paths which define spacially resolved gates through which objects and people must pass to enter and leave the area. As the gates are scanned, the-presence of objects and people are detected. A complete scan produces a gate signa- ture which includes information indicative of the presence and location of objects and people in each gate during the scan. Successive signatures are compared in sequence as scans are made in order to determine changes caused by movement of objects and people in or out of the area. From this comparison an up/down counter is controlled to maintain a dynamic count of the number of objects or people in the area following each scan of the gates. The counter counts up as objects and people enter the area and counts down as they leave.
362376
Gowling Lafleur Henderson Llp
Otis Elevator Company
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