【作者】 方恒耀；

【导师】 李波；

【作者基本信息】 武汉理工大学 ， 控制理论与控制工程， 2007， 硕士

【摘要】 汽车仪表是驾驶员与汽车进行信息交流的重要窗口，对汽车的安全与经济行驶起着重要的作用。近几年，随着嵌入式技术的发展，对人机界面的要求越来越高。嵌入式GUI作为人机界面的软件系统，已经被汽车仪表系统所采用。随着更好的人机交流，基于图形化界面的汽车仪表可以使驾驶员更方便了解整车目前的状态，准确地处理各种信息。本文研究的主要内容如下：分析了GUI在嵌入式系统中的地位以及嵌入式GUI的基本特征。同时，对几个主流的嵌入式GUI系统，如MiniGUI、MieroWindows、OpenGUI、μC／GUI等，并从组成结构、系统功能等方面进行了分析与比较。介绍了μC／GUI的可靠性、效率性等一般需求和可移植性、可裁减性等特殊性需求，并从图形子系统、事件子系统以及对象子系统三个方面详细描述其开发流程，归纳出了利用μC／GUI开发应用程序的步骤。在基于μC／GUI的基础上，根据仪表用户软件的硬件配置和软件的总体框架，研究了汽车仪表开发平台的总体设计方案。硬件配置包括控制器和液晶显示屏的选择，软件框架包括数据的处理与显示以及RS485总线通讯。仪表开发平台的总体设计包括软件的自动生成系统和参数代码的传输。研究了仪表开发平台实现过程中的几项关键技术，如图形用户界面的2-D图形库、位图转换器、汉字的输出等。同时，还对开发平台的两个以下创新点：利用图形化界面软件μC／GUI设计仪表和利用开发平台的思想设计仪表，进行了深入的讨论。更多还原

【Abstract】 The instrument of automobile is the key window for driver and automobile, and it is important to the automobile’s safety and move. In recent years, with the development of embedded system, the demand of human-machine interface is becoming higher and higher. As the software system of human-machine interface, embedded GUI has been adopted by the instrument of automobile. With the idevelopment of communication between human and machine, it is conveniently for the driver to know the condition of the car hardware’s condition and handle various kinds of information exactly.This dissertation’s main context are as follows:Aanalyzing the position of GUI in the embedded system in details.At the same time, introduce several popular GUI systems, such as MiniGUI、MicroWindows、OpenGUI、μC/GUI, mainly about how to form construction and function of the system.Introducing the general demand of uC/GUI, that is reliability and efficiency ,and special demand, that is transplant and reduction. In the same way, describing the development process from image sub system、incident sub system and object sub system,Summarizing the steps of application program based on uC/GUI.Based on this, according to instrument user software’s hardware configure and software framework, introduce the total design of the instrument development platform. Hardware configure includes the selection of controller and LCD. Software framework contains data’s process and demonstration, the communication between the instrument and the host machine throngh RS485, the total design of instrument development platform contains software’s auto produce system and parameter code’s transmission.Investigating in the several key factors of automobile instrument development platform, such as 2-D graphical library、figure graph convertor、the output of Chinese character etc.At the same time, deeply discussing the important characteristic and innovation of the system, that is design the instrument system by the graphical software uC/GUI and the thinking of development platform.更多还原