基于51单片机的遥控汽车设计

xxxxxxxxxx 学号： xxxxxxdxxx 本科毕业论文

基于51单片机的遥控汽车设计

专业名称： 电子信息工程 年级班别： xxxxxx 姓 名： xxx 指导教师： xxxxxxx

2013年5月

河南师范大学新联学院本科毕业论文

基于51单片机的遥控汽车设计

摘 要

遥控小汽车按照人们对其需求的不同，设计的方案也不同。有的需要近距离遥控，比如十米以内的儿童玩具，其要求结构简单、易于控制、外观显示信息丰富，价格适宜；有的则需要远距离控制，语音识别、避障、轨迹检测等，比如让遥控小汽车成为取代人的自动化劳动工具，让它从事一些需要劳动力大、威胁性大的工作，如从事考古、机器人、医疗器械等方面的工作，为人门带来很大的方便。而本设计是将遥控小汽车用于儿童玩具。

本设计以AT89C51单片机为核心，采用芯片L298N控制两个直流永磁式电动机运转，两个直流永磁式电动机为别用为后轮驱动和前轮转向， 用红外遥控芯片HT6221和红外一体化接收头1838控制遥控小汽车的前进、后退、左转弯、右转弯、停止、自动等功能。而且采用4位LED8段数码显示管显示遥控小汽车的运行时间，采用发光LED显示管的不同颜色显示遥控小汽车前进、停止、左转弯、右转弯。这样就使得遥控小汽车的遥控范围在十米左右，而且结构简单，易于操作，价格适宜，更重要的是前进、停止、左转弯、右转弯指示灯的显示颜色丰富，尤其在夜晚显示时很漂亮，能增加儿童和家长对此款遥控小汽车的喜爱和乐趣。

关键词：红外遥控；单片机；小汽车

I

河南师范大学新联学院本科毕业论文

Based on 51 single chip microcomputer remote control car

design Abstrct

Remote control cars according to the people of their different needs, design

programs. Some need to close remote, such as toys for children less than ten meter, and its simple structure, easy to control the appearance of the display information-rich, affordable; others require remote control, voice recognition, obstacle avoidance, trajectory detection, such as remote control cars to replace automation instruments of labor, it engaged in some of the needed labor, threatening, such as in archeology, robotics, medical equipment and other aspects of the work, and his door to bring great convenience. The design is the remote control cars for children's toys.

Designed to AT89C51 microcontroller chip L298N to control two DC

permanent magnet motor running, two DC permanent magnet motors do not use rear-wheel drive and front wheel steering, using the infrared remote control chip HT6221, and infrared integration receiver received the first 1838 control of a remote control car forward, backward, turn left, turn right, stop, auto and other functions. And 4 LED8 segment digital display tubes display remote control cars running time, using different colors of light-emitting LED display tube remote control car forward, stop, turn left, turn right. This makes the remote control car remote control range of ten meters, and a simple structure, easy to operate, affordable and, more importantly, forward, stop, left turn, right turn indicator light to display color, especially in the night show beautiful children and parents to increase the love and fun remote control cars of this section.

Keywords: Infrared remote control; SCM; Cars

II