基于飞思卡单片机的智能汽车设计.doc

基于飞思卡尔单片机的智能汽车设计 摘 要 本智能车系统设计以 MC9S12DG128B 微控制器为核心，通过一个CMOS 摄像头检测模型车的运动位置和运动方向，使用LM1881视频分离芯片对图像进行处理，用光电传感器检测模型车的速度并使用PID 控制算法调节驱动电机的转速和舵机的方向，完成对模型车运动速度和运动方向的闭环控制。为了提高智能车的行驶速度和可靠性，采用了自制的电路板，在性能和重量上有了更大的优势，对比了各种方案的优缺点。实验结果表明，系统设计方案可行 关键词：MC9S12DG128，CMOS 摄像头，PID The Research of Small and Medium-sized Electric Machines in Fuan City Author：Yao fang Tutor：Ma shuhua Abstract Fujian Fuan City industry of electric motor and electrical equipment is the one of the most representative phenomenon of industry cluster in Fujian Province mechanical industry. Its output value of small and medium-sized electric machines accounts for 20% of the whole province’s electrical equipment industry. The output amount of small and medium-sized electric machines from this region takes up 1/3 of that of the whole nation. Fuan electric motor and electrical equipment industry plays a significant role in the development of local national economy, being considered to be the main growth point of local economy and called the Chinese electric motor and electrical equipment city . This paper launched a research on small and medium- sized electric machines in Fuan city from two angles. The first one inferred the situation of Fuan electric machine industrial cluster as well as the analysis of the temporary existed problems, and then propose a few of suggestions on the part of local government. The second part focus on the improvement of the competitiveness of Fuan electric machine enterprises, through the application of Michael Porters Five Forces Model into the local industry of electric machine, consequently carried out some strategies local enterprises should take. Key Words: small and medium-sized electric machines, Five Forces Model, industrial cluster目 录 1 绪论 1 1.1 智能车竞赛背景介绍 1 1.2 智能车系统设计思路及方案分析 2 1.3 系统整体设计结构图 3 2 机械结构的调整与设计 4 2.1 机械安装结构调整 4 2.2 舵机安装方式的调整 4 2.3 摄像头的安装 5 2.4 测速码盘的安装 5 2.5 前轮倾角的调整 6 2.6 地盘高度的调整 7 2.7 齿