基于LVDS环网总线的高可靠性技术研究  

Design of a High-Teliable Data Transmission System Based on LVDS

作　　者：郑文强[1,2] 苏淑靖[1,2] 雷建胜[1,2] 张海丽[1,2] 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,太原030051 [2]中北大学电子测试技术重点实验室,太原030051

出　　处：《计算机测量与控制》2013年第1期266-268,共3页Computer Measurement &Control

基　　金：国家自然科学基金重点项目(60871041)

摘　　要：针对高速远程数据通信的可靠性问题,提出了一种基于低压差分信号技术(LVDS,Low Voltage Differential Signaling)的高可靠性数据传输系统的研究方案。该系统主要从硬件电路和软件算法两个方面进行改进,在硬件上,对LVDS线缆电路进行了完善,使数据位信号在介质上传输损耗减小,再通过冗余技术使错误率减小到很低;在软件上,用差错控制编码对发送的数据进行检错和纠错。系统实现了以600Mbps的传输速率在25m长的双绞线上进行数据传输而无丢数、错数等现象。经过大量的数据传输试验,证明该系统使数据传输的可靠性大大的提高,具有良好的应用价值。According to the high-- speed remote data communication reliability problems, this paper put forward a high reliable data transmission system research approach based on the LVDS （Low Voltage Differential Signaling）. The system mainly improve from two as pects, hardware circuit and software algorithm. On hardware, it perfected the LVDS cable circuit to make data bit signal reduce less when transmit on the medium, and make the error rate reduce to a low level. On software, detect and correct the sent--data error by error control coding. The system is achieved with 600Mbps transmission rate in 25m long twisted pair for data transmission without losing data, wrong number. Verified by experiments, the system greatly improved the reliability of data transmission, and it has a good application value.

关 键 词：LVDS 高可靠性 线缆驱动均衡 冗余技术 差错控制 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]