飞思卡尔智能车位上机设计PPT参考课件.ppt
2021/3/10,授课：XXX,1,基于SD卡的智能车上位机软件 的设计与实现,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,2,背景及意义,智能车技术以汽车电子为背景，涵盖了控制、模式识别、传感、电子、电气、计算机和机械等多个学科。 通过本课题的研究，我们将通过程序的编写使上位机对SD卡中存储的数据进行快速、有条理的读取和显示，从而可以方便的智能车的调试，使智能车更加灵敏和高速。,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,3,内容介绍,文中主要介绍了智能车的整体框架、软件设计、摄像头图像采集模块、光电编码器速度采集模块、舵机控制、电机控制模块以及电源管理模块。软件系统以飞思卡尔单片FreescaleXS128作为系统控制处理器，采用CMOS数字摄像头OV6620。,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,4,硬件原理,智能小车在摄像头的配合下自动识别指定赛道并沿着赛道上的引导线行驶。利用了摄像头对赛道进行感测后得到的数据送交单片机，单片机根据得到的数据，通过PWM波控制舵机的转动，通过MC33886控制电机的转动，以达到自动寻迹的目的。,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,5,硬件设计框图,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,6,单片机与SD卡的连接,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,7,驱动电路,采用直流脉冲调速（PWM），主要部分是由MOS管构成的H桥，并由半桥驱动器进行辅助作用。它主电路简单，需要的功率器件少；开关频率高，电流容易连续，电机损耗和发热都小；动态响应快，动态抗干扰能力强；功率开关器件工作在开关状态，导通损耗小，稳定性强。,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,8,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,9,软件总体设计,软件设计总体框图如图4-1所示。,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,10,SD卡初始化,SD卡与单片机的硬件链接，选用PM口的SPI模式，将其与SD卡连在一块。SD卡的软件设计主要包括两部分内容：SD卡的上电初始化过程和对SD卡的读写操作。对SD卡初始化步骤如下图所示。,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,11,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,12,SD卡读写流程,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,13,生成图想模块,将八个点组合成为一个字节，每位与1相与，若结果为1，黑色绘出，0用白色绘出，按照字节从高位到低位画出各个位的颜色，从左向右画出，即可得出每个小方格的颜色。,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,14,打开图像,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,15,删除图像,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,16,放大缩小图像,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,17,图像大小自适应,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,2021/3/10,授课：XXX,18,总体界面,图像界面如下图。在该界面的右面有中心线参数，黑点数参数，当前速度，给定速度值，参考行，偏差，图像行数，图像列数，生成图片数量九个LABLE文本框，用来显示每幅图的对应参数。,Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.,素材和资料部分来自网络，如有帮助请下载!,
