煤矿井下信息高速公路的研究

煤矿井下通信的信源主要来自电话和各种监测监控系统，图像监控将成为主要信源在一个大型矿井中，各种通信信息数字化后的总数码率目前不超过６８Ｍｂｐｓ。煤矿井下通信网是接入网，光结是井下接入网中最好的传输媒质，宜采用光纤到大巷，光纤到工作面的光纤接入网方案。煤矿井下信息高速公路涤光接入网，多功能终端和相关的软件组成，光纤通信的多点接入和低速数据的汇接适配是煤矿井下信息高速公路中的特殊技术。

STUDY ON UNDERGROUND INFORMATION HIGH WAY IN COAL MINE

The information sources of the underground communication systems in mine are mainly involved in various monitoring and controlling systems and telephone systems where image information will be an important. Now in a large scale mine the amount of the digitized information can be limited to 68 Mbps, and in an underground communication network, actually a kind of access network, optic fiber is considered the best medium for transmission which can be connected either to main roadway or to coal face when we plan the access system. An underground information highway system consists of the access network with optic fiber, multi functional terminals and related softwares where the particular technology includes the multi connection of optic fiber and the tandem adaptor for low speed data.