步进电机智能小车控制系统.doc

 毕 业 设 计 课题： 步进电机智能小车控制系统 英文题目: The control system of intelligent car based on Stepping motor 姓 名： 学 号： 专 业： 指导老师： 2012年 5 月20日 东华理工大学机械工程系 摘 要 本文设计了智能小车系统，能在跷跷板上前进后退，能够自找平衡点并声光提示。 本设计由电源模块、单片机控制模块、电机驱动电路模块、声光提示模块、光电对管组成的检测模块按键模块、平衡检测模块等7个模块组成。选择步进电机来带动小车的运动，由LM7805输出+5V电压的电源，用LM7815输出+15V的步进电机驱动电源，用STK672-040组成步进电机的驱动模块，探测模块利用一前一后两个RPR220光电对管元件，用于A、B端检测并传出停止信号，利用APR9600芯片和发光二极管构成声光提示模块，平衡检测模块利用双接头平衡检测仪，通过检测摆针的电信号来控制小车的前进后退，利用一个平衡检测模块来检测平衡位置，并相应的给出红绿信号。 本设计可使小车在检测到信号后自行停止，并相应发出声光提示，且在行驶过程中让小车能自动找到平衡点。 关键词：单片机；小车；控制 AbSTRACT This paper designs a control of intelligent car based on Stepping motor system that can retreat in the seesaw,and self-inflicted to balance and light hint . This design consists of power supply module,single-chip microcomputer control module, motor drive circuit module, light hint module, photoelectric detecting module of pipe of key module, balance testing module 7 modules. Choose steppting motor to drive the car, using LM7805 output + 5V voltage power, using LM7815 output + 15V stepping motor driving power, using STK672-040 composition stepping motor driver module, detecting module using RPR220 two photoelectric element , using itdetecting detection terminal of A,B and output stop signalsspread to stop.using APR9600 chip and signal light emitting diode composition hints module, balance testing modules using double joint balance testing, through testing the signals to control needle set forward and backward, the car using A balance testing modules to detect balance position, and the corresponding signal are red, green. This design can make the car to stop, and after signal hint, and A corresponding sound in the course of driving cars can be found to balanc