单片机无线遥控小车毕业论文.doc

单片机无线遥控小车毕业论文 基于单片机 AT89S51 的无线遥控小车设计 摘要 近年来随着计算机在社会领域的渗透和大规模集成电路的发展， 单片机的应用正在不断地走向深入，由于它具有功能强，体积小，功耗低，价格便宜，工作可靠，使用方便等特点，因此特别适合于与控制有关的系统，越来越广泛地应用于自动控制，智能化仪器，仪表，数据采集，军工产品以及家用电器等各个领域，单片机往往是作为一个核心部件来使用，在根据具体硬件结构，以及针对具体应用对象特点的软件结合，以作完善。该无线遥控小车采用玩具小车车架，。采用 AT89S51 单片机作为主控制核心，通过编码、解码集成芯片 PT226/PT2272 无线传送操作指令，利用光电门分别精细检测小车左右驱动轮的速度，从而通过 PWM 动态调整、精确控制小车的速度与方向；该无线遥控小车的功能如下:在有障碍物的情况下实现 20米内的无线遥控；实现前进、后退、加速、减速、左转、右转以及对速度档的选择。关键词：无线遥控 单片机 PWM 无线数据采集 ABSTRACT ABSTRACT In recent years with computer penetration in the social sphere and the developmentof large-scale integrated circuits MCU applications are constantly deepening as it has afunction of strong small size low power consumption cheap reliable easy to use andother characteristics and therefore particularly suited to control the system more widelyused in automatic control intelligent instruments meters data acquisition militaryproducts and household appliances and other fields the MCU is often as a corecomponent to use in accordance with specific hardware and application-specificcharacteristics of the object with software to make perfect.The wireless remote controltoy car car uses frame. Using AT89S51 as control core through the encoding decodingintegration chip wireless transmission PT226 / PT2272 instructions using photoelectricdetection car doors were fine about driving wheel speed and through the dynamicadjustment the accurate control PWM velocity and direction of the car which isaimed for wireless remote control intelligent obstacle avoidance sound-light alarmmileage display function. The wireless remote control function is as follows: the car isunder the condition of the obstacles in realizing within 20 meters of wireless remotecontrol Achieve forward backward left right slowing down turned on the selectionand speed.Keywords: Wireless remote control SCM PWM Wireless data acquisition 目录 目录摘要................................................................................................................IIABSTRACT......