基于同线通信技术的应急指挥系统应用研究  

Application Research of Emergency Command System Based on the Same Line Communication Technology

作　　者：肖继军 

机构地区：[1]江西联创通信有限公司,江西南昌330000

出　　处：《科技广场》2012年第1期153-155,共3页Science Mosaic

摘　　要：本文围绕应急指挥系统的应用需求,选用合适的同线通信体制及技术完成数话同传功能,系统综合考虑的因素包括通信距离、传输带宽、功耗、传输误码率等,在此基础上选用PL2000调制解调器完成线路信号调制功能,选用AMBE2000编解码芯片完成64K话音信号转换为2K话音信号,选用ARM7处理器完成全系统的硬件初始化、数据包业务处理。本文的创新点在于采用电力线载波通信技术为基础构建同线通信系统平台,完成多路节点之间的数话同传功能,这在国内相关产品的实现中尚属首次。This paper focuses on emergency command system application requirements,selection of suitable with the line communications system and technology to complete data and audio transfer function,system factors considered include the communication distance,transmission bandwidth,power consumption,transmission error rate,on the basis of selection of PL2000 modem to complete the line signal modulation function,using AMBE2000 codec chip to complete the 64K voice signal conversion for the 2K voice signal,using ARM7 processor to complete the whole system hardware initialization,data packet processing.The innovation of this paper lies in the power line carrier communication technology based on the same line communication system platform,channel between nodes in the data and audio transfer function,which in the domestic product realization in the first time.

关 键 词：PLC OFDM MBE编码 数话同传 

分 类 号：TN914[电子电信—通信与信息系统]