基于自动寻迹的智能公交车系统设计报告.docVIP

东北电力大学第八届“长通杯”大学生电子设计竞赛 基于自动寻迹的智能公交车系统设计报告 基于自动寻迹的智能公交车系统 摘要：本设计选用STC89C52单片机作为智能公交车的控制核心，实现公交车自动识别轨迹并沿轨迹行驶，提前语音提示下车，公交站点精确停位等功能。同时，公交车可实时显示运行速度，距公交站点距离及预计到站时间等信息。反射式光电传感器通过感知与地面颜色有较大差别的导引线实现轨迹识别。PWM控制实现了对驱动马达的动态精确控制。 关键词：光电传感器 智能控制 PWM脉宽调制 The design of Intelligent bus system Based on Automatic tracing Abstract: This design selects STC89C52 the monolithic integrated circuit to take the intelligent public transportations control core, realizes the public transportation automatic diagnosis path and along the path travel, the voice prompt gets out ahead of time, the public transportation stand stops functions precisely and so on position. At the same time, the public transportation may the real time display running rate, be apart from the public transportation stand to be away from and information and so on estimate station of arrival time. The reflection type photoelectric sensor has the wide difference clearance line through the sensation and the ground color to realize the track identification. The PWM control realized to actuated motors tendency accuracy control. Key word: Photoelectric sensor intelligent control PWM pulse-duration modulation 目 录 一、任务概述……………………………………………………………………4 1、任务………………………………………………………………………4 2、要求………………………………………………………………………4 二、系统方案……………………………………………………………………5 三、主要模块的方案选择与论证………………………………………………5 1、电源模块…………………………………………………………………5 2、控制器模块………………………………………………………………6 3、电机驱动模块……………………………………………………………6 4、轨迹检测模块……………………………………………………………6 5、路程测量模块……………………………………………………………6 6、寻光模块…………………………………………………………………6 7、语音模块…………………………………………………………………7 8、显示模块…………………………………………………………………7 四、系统的硬件设计与实现……………………………………………………7 1、电源模块的设计…………………………………………………………8 2、控制器模块的设计………………………………………………………8 3、电机驱动模块的设计……………………………………………………9 4、轨迹检测模块的设计……………………………………………………9 5、寻光模块的设计…………………………………………………………10 6、路程检测模块的设计……………………………………………………11 7、语音模块的设计…………………………………………………………11 8、显示模块的设计…………………………………………………………12 五、系统的软件设计与实现……………………………………………………12 六、总结…………………………………………………………………………13 参考文献…………………………