【作者】 韩江洪； 常安云； 周国祥； 张本宏； 胡庆新；

【Author】 HAN Jiang-hong1,2 CHANG An-yun1 ZHOU Guo-xiang1 ZHANG Ben-hong1 HU Qin-xing1,21 School of Computer & Information, Hefei University of Technology, Hefei, 230009 2 Engineering Research Center of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei, 230009

【机构】 合肥工业大学计算机与信息学院；

【摘要】 通过对车身控制系统现场升级的研究,提出一种基于LIN总线,可支持"断点下载"功能的在线编程方法。对系统体系架构和控制策略进行深入探讨,阐述了通信层、控制层等各个层次的设计。研究并解决断点下载、中断向量重映射等问题。采用超时重传、错误重传等机制提高在线编程系统的可靠性,健壮性以及适用性。该方法采用优化控制策略和协议平台无关设计,因而有效提高了下载效率和通用性,可应用于各种总线环境和在线升级场合。更多还原

【Abstract】 A method for IAP based on Local Interconnect Network is put forward,by researching the updating of vehicle body controlling system. It can support broken point download. This paper presentation the system structure and control strategy .Also It expatiate the design of communications layers and control layer. These problem such as broken point download、interrupt vector re-mapping are analyzed and solved. This IAP provide its reliability and applicability by overtime resend mechanism、error resend mechanism and self- synchronization. This method adopts a optimal control strategy and a design of protocol platform-free, therefore it can improve the download efficiency and its generality markedly, which enable the method to be applied to various bus systems and on-line upgrade occasions.更多还原