| US 7,475,757 B2 | ||
| Elevator dispatching with balanced passenger perception of waiting | ||
| Mary Ann T. Valk, Glastonbury, Conn. (US); and David J. Sirag, Ellington, Conn. (US) | ||
| Assigned to Otis Elevator Company, Farmington, Conn. (US) | ||
| Appl. No. 10/554,131 PCT Filed Jun. 23, 2003, PCT No. PCT/US03/19944 § 371(c)(1), (2), (4) Date Oct. 20, 2005, PCT Pub. No. WO2005/009879, PCT Pub. Date Feb. 03, 2005. |
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| Prior Publication US 2006/0196732 A1, Sep. 07, 2006 | ||
| Int. Cl. B66B 1/18 (2006.01) | ||
| U.S. Cl. 187—382 [187/247] | 3 Claims |
| 1. A method of assigning selected ones of a plurality of elevator cars to answer hall calls outstanding in a multifloor building,
comprising the steps of:
for each car available to serve a particular hall call outstanding in a building,
(a) determining (45) an estimate of the wait time that will elapse after being registered before each said call will be answered;
(b) providing (46) a perceived wait time as a first constant times a first non-linear function of each said wait time;
(c) determining (47) an estimate of the travel time that will elapse after said each call is answered before reaching an estimated destination
of a passenger registering said each call;
(d) providing (51) a perceived travel time as a second constant times a second non-linear function of each said travel time;
(e) providing (52) a perceived service time as a summation of said perceived wait time and said perceived travel time for each said wait time
and corresponding travel time; and
(f) allocating (59) said available cars to respond to said outstanding hall calls based on said perceived service times.
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