Elevator system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 26, 1985
Grant Date -
N/A
app pub date -
Oct 21, 1983
filing date -
Oct 21, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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 predetermined 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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Family
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Cited Art Landscape
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