Apparatus for transmitting signal for group supervision of elevators
US5018604A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1989 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Aug 2, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B1/34
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An apparatus for transmitting signals for group supervision of elevators having a group supervising device which receives hall calling signals for and assigns the hall callings to different cages, a plurality of controllers in a machine room connected by signal lines to the group supervising device, signal transmitter/receivers provided in the controllers, and connected in series through signal lines for transmitting and receiving signals through the signal lines, call buttons connected to signal transmitters/receivers on respective floors for generating the hall calling signals, and calling signal transmitters provided in the controllers for transmitting the hall calling signal to the supervising device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.