Estimating number of people waiting for an elevator car based on

Details Estimating number of people waiting for an elevator car based on Estimating number of people waiting for an elevator car based on

1992-05-04

1993-09-07

Stephan, Steven L.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187131, 187138, B66B 120

Patent

active

052431550

ABSTRACT:
The number of hall passengers waiting at a stop for service by an elevator car is determined by first calculating instantaneous passenger rates whenever a hall call button is pressed or whenever passengers board an elevator car. The instantaneous passenger rates are scaled to compensate for the inherent differences in service rates of the stops. The scaled rates are averaged into one or more of an up, down, or off peak quantities depending upon the mode of the elevator system. The number of hall passengers waiting at a stop is then calculated by multiplying one or more of the up, down, or off peak quantities, depending upon the mode of the elevator system, by the elapsed time since the stop was last serviced.

REFERENCES:
patent: 4411337 (1988-10-01), Schroder et al.
patent: 4458787 (1984-07-01), Uetani
patent: 4553639 (1985-11-01), Uetani
patent: 4760896 (1988-08-01), Yamaguchi
patent: 4947965 (1990-08-01), Kuzunuki et al.
patent: 4984174 (1991-01-01), Yasunobu et al.
patent: 5012430 (1991-04-01), Sakurai
patent: 5022498 (1991-06-01), Sasaki et al.

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