基于多载波宽带通信技术的煤矿综合业务数字网的研究  

Research on coal mine integrated service digital network based on multicarrier data communication systems

作　　者：王文星[1] 杨公训[1] 王文华[2] 

机构地区：[1]中国矿业大学（北京）机电与信息工程学院,北京100083 [2]北京理工大学信息科学技术学院,北京100081

出　　处：《煤炭学报》2005年第B08期153-156,共4页Journal of China Coal Society

摘　　要：在分析我国煤矿配电网基本结构的基础上，结合已有通信及监控网络，提出基于低压电力线的煤矿信息综合业务数字网系统．该系统采用多级分布式总线网结构，根据所传输信息及设备的不同采用不同的调制方式，包括正交频分复用（OFDM）、扩频、FSK、PSK等，利用宽带多载波数字通信技术，改进煤矿信息综合处理能力．综合业务数字网系统提高了线路的安全性和经济价值，改善了系统的兼容性，构筑成为包括自动化系统在内的综合数字化控制系统．并介绍了基于OFDM及扩频调制方式对以低压电力线的不同相线作为数据传输媒介的实验及分析，其吞吐量达到1～2M，证明了基于OFDM的数字通信技术在一定条件下可以应用于煤矿通信系统．The coal mine information integrated service digital network （ISDN） system was put forward based on the low-pressure electric power line after analyzing briefly the structure of coal mine distribution system, connected with communication and monitoring networks existed already. This system adopted the construction of bus structure and distributed system, used different modulation methods include orthogonal frequency division multiplexing （OFDM）, spread spectrum, FSK, PSK etc. according to a difference delivering information and equipment, making use of the broadband electrical multicarrier data communication techniques to improve capacity processing comprehensively coal mine information. This kind of ISDN increased the stability of the security and economy value, improved the compatibility of system, constituted the synthetical digital control systems including the automation inside. Introduced the experiment and analysis based on modulation method of OFDM and spread spectrum communication to transmit the data through different phase of the low-pressure electric power line as the medium, and the throughout reached 1 -2 M, this test proves that the digital communication technique based on OFDM can be used in coal mine communication systems under the certain condition.

关 键 词：多载波数字通信系统 电力线通信 煤矿通信 综合业务数字网 

分 类 号：TD655[矿业工程—矿山机电]