Using fuzzy logic to determine the traffic mode of an elevator system
US5252789A · kind A · utility
18Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1992 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | May 4, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B2201/403
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The traffic mode of an elevator system is set according to the number and frequency of passengers departing and arriving at a building lobby. The traffic mode is expressed as a fuzzy logic set having a term indicative of up peak mode, a term indicative of down peak mode, and a term indicative of off peak mode. The degrees of membership of each term are indicative of the degrees to which the elevator system exhibits characteristics of the respective modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.