载货汽车车载运行状态监控网络设计与信息调度传输方法研究

项目名称： 载货汽车车载运行状态监控网络设计与信息调度传输方法研究

项目编号： No.51305181

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 机械、仪表工业

项目作者： 刘应吉

作者单位： 交通运输部公路科学研究所

项目金额： 24万元

中文摘要： 目前货车动态监控以定位和调度为主，缺乏对车辆工作单元技术状况的综合监控分析。课题以配置OBD系统货车为研究对象，采用理论分析、计算机仿真和实车工况试验相结合的方法，首先构建基于CAN总线的货车车载运行状态监控网络，结合OBD系统主要对发动机控制单元提供的运行状态信息进行提取；通过对国内外汽车总线调度算法的分析研究，研究适用于车载监控网络的车辆运行信息动态调度算法，根据安全优先级对实时信息进行调度分配采集；研究数据压缩算法对缓变信息进行冗余压缩处理以减少其无线传输量，制定监控参数混合组态打包协议并通过无线网络将处理后的数据传输给远程监控中心站。课题研究首先利用仿真网络对调度和压缩算法进行性能优化，最后组建系统台架及样车原型进行多行驶工况实车检测和性能评估。最终形成一套科学的、覆盖主流车型的运行信息调度与远程压缩传输共性技术。为研究货车远程性能监控系统奠定理论和技术基础，提高车辆安全运营水平。

中文关键词： 营运车辆；CAN网络；动态监控；信息调度；数据压缩

英文摘要： The existing dynamic monitoring technology of truck are mainly focus on positioning and dispatching,but monitoring and analysis on the technical condition of vehicle working unit was lacked. In this project, trucks equipped OBD will be selected as the research object, and the research method is consist of theoretical analysis, computer simulation and vehicle condition test, and the CAN-based monitoring network of truck operating condition will be built firstly, with the OBD system, which could extracted operation and fault information provided by units, for example, engine controlling unit. By analyzing the domestic and foreign operation informatron dispatching algorithms of vehicle data bus, the dynamic dispatching algorithm which is suitable for the vehicle monitoring networks will be researched, and real-time information will be dispatched and collected according to its security priority. the impact of data compression algorithm on the reduction of transmission flow will be analyzed, so the information varying slowly will be compressed, a mixed configuration package protocols of multi-state monitoring parameters will be developed to transmit the processed data to the remote monitoring center station through wireless network. This project firstly used the simulation network technology to optimized the performa

英文关键词： Commercial bus；Controller area network；Dynamic monitoring；Information scheduling；Data compression