Mine communication system |
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| 申请号 | JP22147484 | 申请日 | 1984-10-22 | 公开(公告)号 | JPS61100032A | 公开(公告)日 | 1986-05-19 |
| 申请人 | Dowa Mining Co Ltd; | 发明人 | TSUMURA KAZUHIRO; NISHIDA YONEJI; ITO MASATOSHI; IKEDA KAZUO; | ||||
| 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. | ||||||
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