车载仪表GUI真彩前屏系统的设计  

Design of vehicle GUI true color front screen system

作　　者：王琼[1] 钱润生[1] 孙保群[2] 

机构地区：[1]合肥工业大学计算机与信息学院,安徽合肥230009 [2]合肥工业大学汽车工程技术研究院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2013年第8期938-942,共5页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学青年基金资助项目(51205101)

摘　　要：针对乘用车驾驶室车载电子、电器和仪表设备多且安装分立、占用空间大、显示精度低及可读性差不利于驾驶员观察等问题,文章提出了一种基于Qt技术的车载多功能GUI显示前屏的集成设计方案。系统以内核为ARM920T的嵌入式处理器S3C2440A为硬件控制核心,以群创7寸TFT-LCD为触摸显示屏,在Linux2.6.34和Qt4.6开发平台上,实现了集车辆行驶信息GUI显示。实验结果表明,系统能够图形化实时显示车速和行驶里程、发动机转速、油量、水温、方向灯指示和时间日期等车辆行驶参数,该系统具有图形界面友好、反应灵敏、体积小、成本低和可扩展性强等特点。An integred design scheme of vehicle GUI true color front screen system based on Qt tech nology is put forward, which can solve the problem of passenger car cab full of automotive electron ics, electrical and instrumentation equipments with low accuracy and poor readability. A front screen display system integrating the vehicle GUI display and other functions is designed and implemented on the Linux2. 6. 34 and Qt4.6 development platform. The embedded processor S3C2440A with ARM920T core is used as the hardware control kernel and the Innolux 7inch TFTLCD as the touch screen. The experimental results show that the system can display vehicle parameters of speed and mileage, the engine speed, fuel capacity, water temperature, turn signals, instructions and the time and date graphically in real time. It has characteristics of a friendly graphical interface, high respons ivity, small size, low cost and good scalability.

关 键 词：车载前屏 图形用户界面显示 Qt技术 

分 类 号：TP391.1[自动化与计算机技术—计算机应用技术]