Apparatus and method for controlling a plurality of elevator cars
US5884729A · kind A · utility
7Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1996 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Dec 23, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B1/18
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for controlling a plurality of elevator groups each of which has at least a pair of elevator cars. The apparatus includes a master car controller for collecting data from and controlling a plurality of hall calls, cage calls and motors to thereby manage a respective group of elevator cars, and at least one slave car controller for receiving and internally backing up an allocation command and control command value from the master car controller to thereby control the hall calls, the cage calls and the motors in accordance therewith, thereby enhancing the operating stability of the elevator system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.