摘  要

现如今最潮流的词汇就是智能化，它的出现改变了整个世界的发展，给人们的生活带来了更加人性化的享受，智能化也在逐渐渗透各个领域，得到了广泛的普及和发展。而关于智能化的玩具小车也在悄悄地走进人们的娱乐生活，传统的玩具小车只有一些基本的操作，控制小车的前进方向，比较单一，而智能化的运用让小车更加灵活，可玩性更高。关于智能小车也应用到军事，工业，交通等领域，它们直接间接地带来了更高的经济效益和研究价值。

本次设计是基于单片机为核心控制的智能玩具小车，完成这次设计主要是由两部分组成，一个是小车主体部分，另一个是遥控控制部分，同时还需要各个软硬件的相互配合来共同完成。其中小车主体部分包含单片机控制芯片，各种传感器，电机驱动器等，遥控器的结构比较简单，只有单一的HT6221编码芯片。由于智能玩具小车综合性比较高，所以涉及的技术比较多，如单片机技术、智能玩具电动小车技术、无线遥控技术、红外传感技术等等。

完成本设计的智能小车，具有自动避障功能，自动循迹，无线电遥控，实时显示速度、路程等功能。

关键词：智能车；避障；红外线；遥控；单片机

Abstract

Nowadays the trend of the vocabulary is intelligent, it changed the whole development of the world, has brought people's lives more human enjoyment, intelligence has also been gradually permeate all areas, has been widely spread and development. About intelligent toy cars are also quietly walked into people's entertainment life, traditional toy car with some basic operation, control of the direction of the car, is a single, intelligent and apply make the car more flexible, playability is higher. Smart cars are also used in military, industrial, transportation and other fields. They bring higher economic benefits and research value directly and indirectly.

This design is intelligent toy car based on single chip microcomputer as control core, complete the design mainly consists of two parts, one is the small car body, the other is a remote control part, at the same time also need the various hardware and software together to complete together. The main body of the car consists of a single chip microcomputer control chip, various sensors, motor drivers, etc. The structure of the remote control is relatively simple, with only a single HT6221 coding chip. Due to the high comprehensiveness of intelligent toy cars, there are many technologies involved, such as single-chip microcomputer technology, intelligent toy electric car technology, wireless remote control technology, infrared sensing technology and so on.

The intelligent car designed in this design has the function of automatic obstacle avoidance, automatic tracking, radio remote control, real-time display speed, distance and other functions.

Key words:Smartcar; 51 single chip microcomputer; obstacle avoidance; infrared; remote control.