2009全国大学生电子设计竞赛 题目B：
参赛学生：指导教师：学 校：院 系：
《声音导引系统》
信息 学院
目 录
一、设计任务与要求 .................................................................................................................................................. 1 二、系统整体设计方案比较与选择 .......................................................................................................................... 1 三、设计与论证 .......................................................................................................................................................... 1
1、电机运行速度设计 ........................................................................................................................................ 1 2、误差信号的产生 ............................................................................................................................................ 2 3、控制理论简单计算 ........................................................................................................................................ 2 四、电路设计 .............................................................................................................................................................. 2
1、系统整体设计框 ............................................................................................................................................ 2 2、单元电路设计 ................................................................................................................................................ 3
1）可移动声源及声音接收器 .................................................................................................................... 3 2）电机驱动电路设计 ................................................................................................................................ 4 3）无线收发模块 ........................................................................................................................................ 5 3、电源设计 ........................................................................................................................................................ 5 五、软件设计 .............................................................................................................................................................. 6 六、运行情况测试 ...................................................................................................................................................... 7
1、声源速度测试 ................................................................................................................................................ 7 2.测试方法 .......................................................................................................................................................... 7 3.测试数据 .......................................................................................................................................................... 7 4.误差分析 .......................................................................................................................................................... 8 七．设计总结 .............................................................................................................................................................. 8 八．参考文献 .............................................................................................................................................................. 8 九. 附录 ...................................................................................................................................................................... 8 十、结束语 ................................................................................................................................................................ 13
声音导引系统设计与总结报告
摘要：
本文描述了声音导引系统的设计原理和实现方法。该系统由AT89S52单片机控制，双直流电机双轮驱动小车。通过NEC公司的ASSP电机控制芯片和单片机之间的串行通信实现可移动声源的运动。主控制器利用不同声音接收器间产生的误差信号，并用无线通信方式将此误差信号传输至可移动声源，引导其运动。到达目的地，发出声光信号。系统最大特点在于软件设计采用层次化、模块化的设计方法，使得复杂数学模型和控制算法得以简化和快速开发。经调试和测试，系统各项性能参数已基本达到设计指标。且本系统在设计中注意低功耗处理和力求高性价比等细节。 关键词：
声音导引 89S52单片机 ASSP芯片 算法
Abstract
This system use two STC12C5A60S2 enhanced 51-series microcomputer, double dc motor
drive car outfit. Through different voice signal method-the peak-trough received from various terminal, the car of distance, through wireless transmission module control vehicle, and control chip car movement, destination, a sound signal. This system in the design of low power consumption and high performance to such details.