Predictor elevator for traffic during peak conditions

Details Predictor elevator for traffic during peak conditions Predictor elevator for traffic during peak conditions

1990-09-11

1994-01-04

Gaffin, Jeffrey A.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187127, 187131, B66B 120

Patent

active

052762955

ABSTRACT:
A computer controlled elevator system (FIG. 1) including signal processing means for dynamically computing the population spread or density of the buildings, i.e., the number of elevator users in a building on a floor-by-floor basis, including the lobby, and to use such information to compensate for traffic shifts occuring in connection with the up-peak period in which dynamic channeling is used for an elevator car assignment scheme based on prediction methodology, all in accordance with an algorithm (FIG. 3). If, for example, the prediction methodology predicts that the up-peak dynamic channeling scheme should begin but the real time data has not detected any beginnings of an up-peak traffic pattern, the prediction methodology is over-ridden until the real time data finally picks up such a pattern. Additionally, if the floor population spread which is derived from real time data indicates that one or more floors individually have received all of their expected floor population, those floors are devalued to a nominal "priority" basis of "1" in the dynamic channeling scheme, even though the prediction methodology predicts the arrival of additional people for those floor(s) in the remaining up-peak time set by the system. Thus, "too early start" (FIG. 2A) and "too late end" (FIG. 2B) of dynamic channeling are avoided.

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