Elevator system having dynamic sector assignments
US5317114A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1991 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Nov 27, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B1/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Method and apparatus is disclosed for operating an elevator system that includes a group of elevator cars servicing a plurality of floor landings divided into Sectors. The method includes the steps of, with a controller associated with each elevator car of the group, (a) determining when the elevator car has reached a Turn Around Point for returning the elevator car to a lobby; (b) initiating travel to the lobby; and (c) determining when the elevator car has reached a predetermined Sector Assignment Fixation Point. After reaching the predetermined Sector Assignment Fixation Point, the method further includes the steps of (d) communicating Sector-related information with other controller of other elevator cars of the group; and (e) based upon the communication, assigning to the elevator car a next Sector to be serviced after arrival at the lobby. A round-robin arbitration technique is disclosed for assigning Sectors among the elevator cars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.