目录一、引言.....................................................................1二、系统方案..................................................................1（一）方案论证与比较...........................................................................................................11、主控电路.....................................................................................................................12、角度传感器的选用.....................................................................................................23、按键选用.....................................................................................................................24、显示............................................................................................................................25、电机的驱动.................................................................................................................26、风扇............................................................................................................................37、电源............................................................................................................................3（二）总体设计方案.............................................................................................................3三、理论分析与计算............................................................3（一）距离计算.......................................................................................................................3（二）角度计算.......................................................................................................................4（三）控制算法.......................................................................................................................4四、电路与程序设计............................................................4（一）硬件设计.......................................................................................................................41、总体电路图（见附录1）..........................................................................................42、主控电路.....................................................................................................................43、风扇控制.....................................................................................................................54、显示模块.....................................................................................................................55、声光提示模块.............................................................................................................66、传感器模块.................................................................................................................6（二）软件设计.......................................................................................................................61、风扇控制算法设计.....................................................................................................62、声光提示算法设计.....................................................................................................73、系统流程图.................................................................................................................7五、系统测试...................................................
