Elevator system

Details Elevator system Elevator system

H - Electricity

04

N

364/11, 364/35

H04N 7/18 (2006.01) B66B 1/34 (2006.01) G06T 5/20 (2006.01)

Patent

CA 1222582

50,875 ABSTRACT OF THE DISCLOSURE Apparatus and methods for determining the load in an elevator car including the preparation of a video image of the car which has a predetermined number of picture elements (pixels). The gray scale level of each pixel is determined and compared with a reference value related to the gray scale level of the same pixels when the elevator car is unloaded. Those pixels whose gray levels have a predetermined relationship with the prede- termined reference value are considered "loaded" pixels and the number of such loaded pixels is compared with the total number of pixels to obtain an indication of car load.

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