多功能车辆总线控制器编码器设计  

A Design of Multifunction Vehicle Bus Controller Encoder

作　　者：李中奇[1] 杨丰萍[1] 郭万岭[2] 幸柒荣[1] 

机构地区：[1]华东交通大学电气与电子工程学院,江西南昌330013 [2]哈尔滨铁路局工业总公司无绝缘产品发展中心,黑龙江哈尔滨150030

出　　处：《华东交通大学学报》2009年第6期52-56,共5页Journal of East China Jiaotong University

基　　金：江西省教育厅科学研究项目(GJJ09203);华东交通大学校立科学研究基金(07DQ06)

摘　　要：分析了目前国内外多功能车辆总线的发展状况及自主研制MVB总线控制器及MVB网络接口卡对于我国轨道交通的现实意义,介绍了基于CRC循环冗余校验和偶校验的基本原理,并根据TCN协议,在MVB总线中设计了一个由7位CRC校验码和1位偶校验位构成的具有双重校验的8位校验序列,大大提高了数据传输中的检错能力与可靠性。设计采用QuartusⅡ软件与VHDL语言实现,最终得到校验序列编码器的正确仿真波形,结果表明完全达到了预期的设计要求。The paper analyzes the current domestic and international muhi-function vehicle bus and significance of the development of independent research and MVB（Multifunction Vehicle Bus） controller and the MVB network interface card for China＇ s rail transportation. In this paper,based on the principle of CRC and even parity, according to the protocol TCN（Train Communication Network）, a 8-bit check sequence composed of a 7-bit CRC and a 1-bit even parity is designed in MVB, which greatly enhances its error detecting capability and reliability during the data transmission due to its duplication check. The check sequence encoding is described with VHDL（Very-High-Speed Integrated Circuit Hardware Description Language） and Quartus II, and the correct simulation results indicate that the expected design requirement is accomplished.

关 键 词：列车通信网络 多功能车辆总线 偶校验 校验序列 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]