| 摘要 |
A safety network system (1) of an underground mine (2), comprising a monitoring system (3), plurality of reader devices (6, 6a, 6b, 6c, 6d), each of which being arranged in a known location in a gallery (5) of said mine, and being capable to communicate with the monitoring system, at least one wireless safety device having capacity to communicating with the reader devices. The location of said at least one wireless safety device in the mine is arranged to be provided by the monitoring system. Said communication is arranged to operate at 433MHz. |
