基于CAN总线仿真平台的数据缩减算法的研究  

Development and Implementation of a Data-Reduction Algorithm Based on CAN Simulation Platform

作　　者：姚远达[1] 徐榕[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《计算机仿真》2007年第2期249-251,310,共4页Computer Simulation

摘　　要：为了提高控制局域网总线的传输效率,改善总线的实时性能,在现有仿真试验平台的基础上,提出了使用数据缩减算法来改善总线上各种智能结点单元之间信息传递效率。数据缩减技术可以应用于总线的所有数据层,包括控制车身的低速CAN和控制引擎相关的高速CAN,可以明显的提高总线的利用率,减少平均报文延时,减少最大延迟时间,缩短平均报文队列长度,大大改善了总线的运行效率。Aiming at improving the communication efficiency of the CAN bus ,and meeting the requirement of Realtime activities . On the basis of existent simulation platform , this paper introduces a Data - Reduction Algorithm that can be applied to all data classes found in automotive multiplexing including body CAN and engine - related CAN to improve the information exchange rate among various intelligent nodes . It can be also applied to nonautomotive applications in which extensive information exchange is performed among control modules via a multiplex bus. Which can greatly improve the utilization of the bus , reduce average message delay time , max delay time and average message queue length .

关 键 词：控制局域网络总线 硬件在环 数据缩减 通讯 仿真 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置] TP368[自动化与计算机技术—控制科学与工程]