车载终端车联网中间件技术研究与实现

Research and Implementation of Middleware Technology in Vehicle Intelligent Terminal

摘要:

为了解决因车身网络的数据协议差异造成的车载智能终端不能在多个车型上通用的问题,提出了一种车载智能终端中间件架构；在该架构中,采用多层结构隔离应用与网络直接访问；采用组件结构实现了应用的抽象与复用,降低应用开发难度；采用消息总线,负责管理组件之间的数据通信,为应用层提供一个统一接口的虚拟车身网络环境；通过消息的数据通信实现车载终端应用间的数据交互,底层采用通信服务层屏蔽了各种车身网络的差异性,解决了车载终端在不同网络协议车型上使用的通用性问题；最后,通过搭建实际的测试平台验证了该设计的可行性和有效性。

Abstract:

In order to solve the problem that vehicle intelligent terminal applications can't be used in multiple kinds of vehicle,this thesis put forward an architecture of vehicle intelligent terminal middleware. In this architecture,the multilayer structure is adopted to isolate application from the network; Component structure is adopted to fulfill reuse of the software,and to improve the car terminal software productivity and quality; Message Bus is used to manage the data communication between components,and to provide a unified virtual network environment for the upper application component; By using the data message,the data is delivered from different vehicle intelligent terminals to others,and the hardware system uses the communication service layer to shield the differences of various car networking,so that the terminal can be used in multiple kinds of vehichles that using different network protocols. The thesis designs in detail the core modules and the communication protocols based on the above architecture. Finally,the proposed scheme was demonstrated by experimental network test for its feasibility and practicality.