The Research Of Automobile Instrument's Development Platform Based On Graphical User Interface Technology

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.