毕业设计(论文) 题目: 基于无线网络的小车远程控制系统的设计 作 者 阳 开 届 别 2015届 院 别 机械工程学院 专 业 机械电子工程 指导教师 李 锶 职 称 副教授 完成时间 2015年5月2日 摘 要 Wifi小车主要由电机、小车车底盘、STC89C52芯片、wif固化模块、电机驱动模块、舵机、电源、摄像头等主要部件组成。Wifi小车利用手提电脑或者android 系统手机等能连接无线路由器，通过专业应用软件在终端上显示路由器连接的摄像头所采集到的视频信号。而在控制方面，由电脑或手机上的特定软件发送控制指令到wifi板，通过wifi板转将控制指令传给单片机处理。然后通过单片机控制电机驱动电机转动，舵机转动，就实现了控制小车的运动和视频采集。
关键字 路由器；wifi;智能小车；89C52 Abstract The Wifi car mainly by the electrical machinery, the car chassis, the STC89C52 chip, the wif solidification module, the motor-driven module, the servo, the power source, the photograph prime major component is composed.The Wifi car use portable computer or the android system handset and so on can connect the wireless router, through the specialized application software in the terminal demonstrated the router connection the camera gathers video signal.But in the control aspect, from on the computer or the handset specific software transmission control command to the wifi board, the control command will pass to monolithic integrated circuit processing through the wifi rotary-inversion.Then through the monolithic integrated circuit control motor-driven electrical machinery rotation, the servo rotation, realized has controlled the car the movement and video frequency gathering.
Key words ：router; wifi; Intelligent car; 89C52 摘 要............................................................... 2 第1章 绪 论 ............................................................................................................................. 7
第2章 系统方案的选择与比较 ........................................................................................... 8
第3章 总体设计方案 ........................................................................................................... 9
3.1 功能描述 .......................................................................................................................... 9 3.2 总体设计框图 .................................................................................................................. 9 第4章 硬件电路设计 ......................................................................................................... 10
4.1 TP-LINK WR703N无线路由器 ...................................................................................... 10 4.1.1 刷机固件介绍 ..................................................................................................... 11 4.1.2 刷机步骤 ............................................................................................................. 11 4.2 单片机最小系统设计 ................................................................................................... 12 4.2.1 电源电路 ............................................................................................................. 13 4.2.2 时钟电路 ........................................................................................................... 13 4.2.3 复位电路 ............................................................................................................. 14 4.2.4 89C52单片机的使用 .......................................................................................... 15 4.3 电机驱动电路 ............................................................................................................... 16 4.3.1 电机驱动模块使用 ............................................................................................. 16 4.4 摄像头........................................................................................................................... 18 4.4.1 摄像头与路由器连接原理 ................................................................................. 18 4.4.2 涉及摄像头的固件升级 ................................................................................... 18 4.5 舵机............................................................................................................................... 19 4.5.1舵机的控制 .......................................................................................................... 20 4.5.2舵机的作用 .......................................................................................................... 20 4.6 电源模块 ....................................................................................................................... 21 4.6.1 稳压电路应用及其原理图、实物图 ................................................................. 21 4.7 小车底盘 ....................................................................................................................... 23 4.8 循迹传感模块 ............................................................................................................... 24 4.8.1 循迹模块具体电路图 ......................................................................................... 25 4.8.2 传感器的安装 ................................................................................................... 25 4.9 wifi板及驱动模块供电模块LM2596 ....................................................................... 26 第5章 软件设计 ...................................................................................................................... 28