发明名称 |
MINE COMMUNICATION SYSTEM |
摘要 |
PURPOSE:To attain mutual communication between workers in a mine and transmission of information to the center by connecting fixed relay transceivers decentralized to plural positions in a mine and mobile terminal transceivers by radio and connecting the fixed transceivers with a control transceiver by cable respectively. CONSTITUTION:The control transceiver 1 collecting the information of the entire mine is placed near the inlet at an X in a ore mine, and the fixed relay transceivers 2 arranged at a prescribed distance in the mine and decentralized at each part in the mine are connected to the transceiver 1 and mutually by a coaxial cable 3. Each transceiver 2 is mounted with an antenna 5 and an open coaxial cable 4 playing a role of an antenna is connected thereto freely removably. The worker in the mine carries a terminal transceiver 6, uses an earphone 8 and a microphone 9 mounted to a helmet 7 to transmit and receive the information with the transceivers 2 in radio and communicates information with a telephone set 11 of the control transceiver device 13 at a Y side at the outside of the mine and the device 13 gives various commands to the worker in the mine. |
申请公布号 |
JPS61100032(A) |
申请公布日期 |
1986.05.19 |
申请号 |
JP19840221474 |
申请日期 |
1984.10.22 |
申请人 |
DOWA MINING CO LTD |
发明人 |
TSUMURA KAZUHIRO;NISHIDA YONEJI;ITO MASATOSHI;IKEDA KAZUO |
分类号 |
H04B5/00;(IPC1-7):H04B5/00 |
主分类号 |
H04B5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|