机车综合无线通信设备语音单元的设计与实现  

Design and Implementation of Voice Unit for Cab Integrated Radio Communication Equipment

作　　者：谢晓燕[1] 石晓龙[1] 

机构地区：[1]西安邮电大学计算机学院,陕西西安710061

出　　处：《计算机技术与发展》2016年第2期136-139,共4页Computer Technology and Development

基　　金：陕西省自然科学基础研究计划项目(2013JC2-32)

摘　　要：机车综合无线通信设备(Cab Integrated Radio communication equipment,CIR)是目前国际流行的列车无线调度通信用车载设备。设备的语音单元主要负责机车在铁路移动通信系统(GSM-Railway,GSM-R)网络覆盖下进行语音调度通信,在系统中起着至关重要的作用。为了满足CIR通过GSM-R进行语音通话的实际需求,文中设计了一种基于Cinterion-MC55i无线通信模块、单片机和复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD)组成的CIR语音通信单元。在分析实际系统功能需求和应用特点的基础上,提出了系统的总体结构,并给出了主控电路、无线通信电路等主要硬件电路的详细设计。在此基础上,对单片机主控程序及看门狗芯片控制、串口数据传输等系统核心软件模块进行了详细说明。测试结果表明,设计的语音通信单元运行状态稳定,能够满足CIR设备的通信要求。Recently,Cab Integrated Radio communication equipment（ CIR） becomes a kind of popular vehicle equipment for train radio dispatching. The voice unit is an important part of CIR equipment,mainly in charge of locomotive voice dispatching communication function via GSM- R network. In order to meet the needs of practical application,a kind of CIR voice communications unit based on wireless communication module Cinterion- MC55 i,MCU and CPLD was designed in this paper. Based on the function requirements and application features of voice unit,put forward an overall design scheme of the system,and gives the hardware design principle diagram. The design details of key components are involved in,such as main control unit,GSMperipheral circuit. And then,the software design of some kernel modules are given,such as watchdog chip control,serial data transmission,and master control program etc. The test results show that the voice communication module operating is stable,which can meet the communication requirements of the CIR equipment.

关 键 词：机车综合无线通信设备 语音单元 铁路移动通信系统 无线通信模块 单片机 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]