Telematics系统的软件构架与应用

发布时间：2018-07-08 17:43

本文选题：Telematics + XAML中间件　；参考：《上海交通大学》2015年硕士论文

【摘要】：当今中国社会,随着汽车的普及以及互联网的超高速发展,一方面,用户对于车辆养护、安全防护等有了更高的要求;另一方面,日益严重的环境问题也促使人们希望能够低碳、绿色出行;再者,人对于车辆以及互联网的依赖程度越来越高,车辆信息化、娱乐化的需求也随之迫切。因此,车辆、资源、互联网,三者融合的趋势不可避免,由此也催生出Telematics这一新兴技术。所谓Telematics,是由Telecommunications和Informatics组合而成,广义上指通过远距离无线通信技术进行实时数据传输和交换的技术,狭义上指的是通信技术与汽车技术结合,通过无线网络将车载智能系统整合进入互联网的新兴技术。通过Telematics技术延伸出一系列诸如:车辆远程监控、实时路况信息反馈、车友在线等等的Telematics服务,这些服务作为车辆周边第三产业必将成为汽车工业乃至整个社会,新的经济增长点[1]。然而,对比Telematics的需求的高速增长,Telematics系统TCU端的开发周期冗长造成了Telematics系统开发赶不上多变的系统需求,其核心问题在于Telematics系统庞大,功能繁多造成的软件危机,为解决这一问题,本文对现有国内外Telematics系统现状以及相关需求进行分析,研究以及应用以下三种技术手段:1、在车载嵌入式系统中创新中间件技术,提出并阐述嵌入式系统中间件的设计原则以及实现方法,实现TCU端的Telematics系统应用模块的快速整合。2、创新使用ACP245通讯协议作为车载单元与服务供应商的数据交换格式,通过分析以及应用ACP245通讯协议,实现Telematics系统传输数据的标准化对接。3、CAN模块的研究与应用,整车系统中,通过将CAN软件模块进行良好分层,增强CAN模块的复用性和移植性,缩短由于CAN模块移植带来的时间以及资源成本。本文从系统构架层面上设计实现了以快速整合应用为目的,跨平台的XAML中间件,使不同成熟功能模块可以快速整合进入TCU端的Telematics系统;研究并应用acp245通讯协议使车载单元与服务供应商以标准化数据格式进行快速通信,避免了不同品牌的车载单元以及不同的服务提供商由于数据格式不统一所造成无法通信的情况;通过对车辆内部中控单元与各车身控制模块之间通讯的通信模块:CAN模块结构性的分层,实现在车载嵌入式系统中间件下各个应用模块与整车网络硬件模块的对接,从而构成一个基于车载单元的完整、高效的Telematics系统。
[Abstract]:In today's Chinese society, with the popularity of automobiles and the rapid development of the Internet, on the one hand, users have higher requirements for vehicle maintenance and safety protection; on the other hand, The increasingly serious environmental problems also urge people to be able to low-carbon, green travel; in addition, people rely more and more on vehicles and the Internet, the need for vehicle information, entertainment is also urgent. As a result, the convergence of vehicles, resources, and the Internet is inevitable, giving rise to the emerging technology of Telematics. The so-called Telematics is a combination of Telecommunications and Informatics. In a broad sense, it refers to the technology of real-time data transmission and exchange through remote wireless communication technology. In a narrow sense, it refers to the combination of communication technology and automotive technology. The emerging technology of integrating the vehicle intelligent system into the Internet through wireless network. Through Telematics technology, we extend a series of Telematics services such as remote vehicle monitoring, real-time traffic information feedback, vehicle-friendly online and so on. These services will certainly become the automobile industry and even the whole society as the third industry around the vehicle. A new economic growth point [1]. However, the rapid growth in the demand for Telematics and the lengthy development cycle at the TCU end of the Telematics system have resulted in the inability of the Telematics system to keep up with the changing system requirements. The core problem lies in the software crisis caused by the large and versatile Telematics system. In order to solve this problem, this paper analyzes the current situation and related requirements of Telematics system at home and abroad, studies and applies the following three kinds of technical means: 1, innovates middleware technology in vehicle embedded system. The design principle and implementation method of embedded system middleware are put forward and expounded, which can realize the rapid integration of Telematics application module in TCU, and use ACP245 communication protocol as the data exchange format between vehicle unit and service provider. Through the analysis and application of ACP245 communication protocol, the research and application of the can module of Telematics system is realized. In the whole vehicle system, the can software module is stratified well to enhance the reusability and portability of the can module. Shorten the time and resource cost due to can module transplantation. This paper designs and implements a cross-platform XAML middleware for the purpose of fast integration application from the system architecture level, so that different mature functional modules can be quickly integrated into the Telematics system of TCU terminal. The research and application of acp245 communication protocol enable vehicle unit and service provider to communicate quickly with standardized data format. Avoid different brands of on-board units and different service providers because the data format is not uniform caused by the inability to communicate; Through the structural stratification of the communication module: can module between the vehicle internal control unit and the vehicle body control module, each application module and the whole vehicle network hardware module are connected under the vehicle embedded system middleware. Thus constitute a complete and efficient Telematics system based on vehicle unit.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U495;U463.67;TP311.52

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