Elevator system with varying motion profiles and parameters base

Details Elevator system with varying motion profiles and parameters base Elevator system with varying motion profiles and parameters base

1993-02-08

1994-03-29

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

187125, 187116, B66B 128, B66B 124

Patent

active

052986950

ABSTRACT:
An elevator system (FIG. 1) employing a microprocessor-based group controller (FIG. 2) communicating with elevator cars (3, 4, . . . ) to affect the assignment of cars to hall calls at a plurality of floors in the building, using different, speedier car motion profiles and system motion parameters when the presence of a passenger crowd is predicted (FIGS. 3-5). When a large passenger crowd presence is predicted, each of the assigned car(s) going to the relevant floor(s) is given a higher jerk and acceleration and deceleration rates for improved service time and decreased waiting time. (See FIG. 5.) When such a passenger crowd presence is no longer predicted (crowd signal reset), the car reverts back to a profile with a lower jerk and acceleration and deceleration rates for enhanced passenger comfort. The prediction methodology used for the predicted presence of a crowd utilizes "artificial intelligence" logic.

REFERENCES:
patent: 3891064 (1975-06-01), Clark
patent: 4658935 (1987-04-01), Holland
patent: 5022497 (1991-06-01), Thanagavelu
patent: 5241141 (1993-08-01), Cominelli
G. C. Barney and S. M. dos Santos "Lift Traffic Analysis Design & Control" pub. by Peter Peregrinus Ltd Southgate House, Stevenage, Herts SG1 1HQ England (1977).

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