【作者】 陈伟；

【导师】 贺忠海；

【作者基本信息】 东北大学 ， 检测技术与自动装置， 2010， 硕士

【摘要】 智能车辆助理系统为车主提供了温度检测、车载语音电话、防盗报警、可视倒车、多媒体文件播放和游戏等多种服务,极大地提升了汽车性能,使车主的汽车更加安全,不开车时有更多的休闲娱乐活动。现在各种高性能、高集成度、低价格、低功耗的嵌入式处理器代表了当今主流电子应用技术的方向。它们集成了丰富的控制接口,有效的降低了成本和系统设计难度,为智能车辆助理系统提供了一个可行又实用的解决方案。本系统在硬件方面采用了三星公司的ARM处理器S3C2440,该芯片处理速度快、片上资源丰富,应用广泛,能够满足本系统的设计要求。为了实现丰富的功能,本系统扩展了几个功能模块。其中温度检测模块的传感器采用最常用的DS18B20,简单实用,而且适合本系统的设计；车载语音电话模块和短信报警模块采用中兴的ME3000GSM/GPRS无线模块和科大讯飞的语音合成芯片XF-S3011,XF-S3011是一款高性价比的中文语音合成芯片,它将语音合成系统集成到单一的处理器内部,通过串口接收并合成任意文本；可视倒车模块利用USB摄像头来实现可视倒车功能。在软件方面,本系统以嵌入式Linux作为操作系统,以嵌入式Qt图形用户界面库作为应用程序界面开发工具来编写图形用户界面。本系统的软件部分分为系统软件和应用软件开发两个方面,系统软件包括Bootloader、Linux内核、根文件系统的移植、交叉编译环境的建立和驱动程序的开发,应用软件开发包括温度检测程序、车载语音电话程序、可视倒车程序等等以及相关的界面程序。智能车辆助理系统使得车主有了一个更加舒适和安全的驾车环境,本课题的研究在汽车电子产品领域有着重要的意义。更多还原

【Abstract】 Intelligent vehicle assistant system provides a variety of services to owner, including temperature detection, vehicle-mounted voice call, anti-theft alarm, visual reversing, multimedia play, games, etc. It greatly promotes the performance of atuomobile, makes car safer and more easy park. Nowadays, all kinds of embedded processor have following characteristic:high performance, high integration, low-cost, low power consumption, which are the direction of electronic application technology. The processor integrates abundant of control interface. Meanwhile, it effectively reduces the cost and difficulty of design. Embedded processor is a feasible and practical solution to intelligent vehicle assistant.The system adopts S3C2440of Samsung as processor. This chip has the characteristic of high process speed and abundant resources, which meet the design requirement. In order to realize plenty of functions, the system expands several function modules. Temperature detection module adopts commenly used DS18B20as sensor. Message warning module is composed of ME3000wireless module from ZTE. Vehicle-mounted voice call module also includes speech synthesis chip XF-S3011of KEDAXUNFEI corporation. XF-S3011is a cost-effective Chinese speech synthesis chip. It integrates speech synthesis into a single processor through a serial port receives and synthetizes text. CCD camera with USB interface is used in the visual reversing module.The system uses embedded Linux as operating system, and uses embedded Qt graphical user interface library as development tool to compile graphical user interface. The software part of system is divided into system software and application software development. System software is composed of some parts, including Bootloader, Linux kernel, root file system transplantation, establishment of cross-compiler environment and device driver development. Application software development is composed of following parts: temperature detection program, vehicle-mounted voice call program, visual reversing program and relevant interface program.Intelligent vehicle assistant system provides a more comfortable and safe driving environment. It is of great significance in the field of automobile electronic.更多还原