Longwall face support in an underground mine
US10404948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2015 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Jan 18, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D23/148
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to the longwall face support of an underground mine having supports (plates 1-18), which longwall face support comprises camera housings (35) each having two cameras (36), which record a monitoring area of the face having a plurality of plates in the longitudinal direction of the gallery and the most complete registration possible of the cross section of the gallery. The cameras in a monitoring area are assigned to a common power supply unit (48) for the power supply and are equipped with intrinsically safe electronics. The electronics have a radio device for high-frequency data transfer (transmission and reception) together with antenna 39 (W-LAN antenna) for the wire-free connection to the local camera network (Wireless Local Area Network). Each camera and each camera housing is assigned a camera code and an address code, which is added to the identification data. Each radio device is configured such that data marked with an extrinsic camera code and data and signals marked with an extrinsic address code is emitted to be transmitted following reception.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.