Closed loop fuzzy logic controller for elevator dispatching
US5786551A · kind A · utility
15Cited by
33References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1995 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Nov 30, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B2201/403
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A group controller for controlling elevator cars in a building having a plurality of floors includes a traffic and traffic rate estimator for providing fuzzy estimates of traffic and traffic rate; a closed loop fuzzy logic controller for providing a control parameter in response to the fuzzy estimates of traffic and traffic rate and in response to an elevator control system output variable; and an elevator dispatcher for controlling the operation of the elevator cars during single source traffic conditions in response to the control parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.