Method and apparatus for the remote controlled actuation of a control device
US6590504B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 2000 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Jul 7, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08C2201/71
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for remotely controlled operation of one of several control devices (13) for support frames in underground mining in which the control device (13′) to be actuated is selected by means of an infra-red remote operation and then the transmission of control data between a remote controller (16) and the selected control device (13) is effected by radio transmission. The remote controller, (16) has not only a radio transmitter (18) and the control devices (13) a radio receiver (15), but each control device (13) is additionally provided with at least one infra-red receiver (20), whereby by an infra-red data transmission, the control device (13′) to be actuated is first deliberately selected by the remote controller (16), before the control data is then subsequently transmitted by radio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.