Coincident call optimization in an elevator dispatching system
US4782921A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1988 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Mar 16, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B2201/233
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of optimizing the handling of coincident calls in an elevator system which employs ETA strategy in assigning hall calls to a plurality of elevator cars. The method dynamically biases the ETA value of a car having a car call for the floor of the hall call being assigned, with the bias being applied to favor assignment of the hall call to the car having the coincident car call. The amount of the bias is inversely proportional to the car travel distance between the advanced position (AVP floor) of the elevator car and the floor associated with the hall call (scan floor). The relative effect of the bias is predetermined for each floor by preselection of a constant K used in the bias calculation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.