基于单片机的语音控制小车

基于单片机的语音控制小车摘要随着科技的发展，人们对美好生活向往的想法愈加强烈，从而进一步促进科技的再一次深度发展与改革，减轻劳动力，满足人们的愿望。通过语音控制可以对其被控智能设备进行控制与操作，只需要发出语音指令，使语音智能设备做出相对应操作，摆脱了对遥控器的依赖，不需要到设备旁边进行近距离手控操作。该设计为语音智能小车系统，以ST℃89C52系列为核心的单片机作为系统的控制中心，通过语音识别模块采集语音指令，并进行语音指令的比对，当语音指令与存储的程序指令一致时输出不同占空比的PWM波的信号给单片机，经过单片机处理后输出相对应指令控制小车的前进、后退、左转、右转、停止以及从语音控制转循迹模式：但是当小车前进时检测到前方50cm范围内有障碍物时小车停止前进，清理障碍物后小车保持原有状态继续前进。目前市面上已经有多种玩具小车，在满足更多功能性的同时，语音智能小车具有更好的控制性，以及按照地面黑色路线进行循迹模式行走，降低了操控者对遥控器的依赖，小车更加智能化的走向生活，使儿童一代更加了解到科技的进步，所以说本次语音智能小车的设计研究非常具有实用性。关键词：科技：语音智能：语音控制：单片机：语音指令IAbstractWith the development of science and technology,people's yearning for a better life isbecoming more and more intense,so as to further promote the in-depth development and reformof science and technology,reduce labor force,and meet people's wishes.Through voice control,the controlled smart device can be controlled and operated,and only voice commands need to beissued to make the voice smart device make corresponding operations,getting rid of thedependence on the remote control,and there is no need to go to the device for close hand controloperation.The design is a voice intelligent trolley system,with the single-chip microcomputer with theSTC89C52 series as the core as the control center of the system,the voice command is collectedby the voice recognition module,and the comparison of the voice command is carried out,andwhen the voice command is consistent with the stored program instruction,the correspondinginstruction is output to control the forward,backward,left,right,stop and from voice control totracing mode;However,when the trolley is advancing,it detects that there is an obstacle within50CM in front of it,the trolley stops moving forward,and the trolley continues to move forwardin the original state after clearing the obstacle.At present,there are a variety of toy cars on the market,while meeting more functionality,the voice intelligent car has better control,and walking in the tracking mode according to theground black route,which reduces the operator's dependence on the remote control,and the caris more intelligent to life,so that the child generation is more aware of the progress of scienceand technology,so the design research of the voice intelligent car is very practical.Key words:Technology;voice intelligence;voice control;microcontroller;voice commandsII目录摘要.Abstract....第一章绪论11.1研究目的与意义.1.2研究的背景.11.3国内外研究现状.21.4本文主要研究的内容和要求3第二章系统整体设计….52.1系统整体设计方案52.2方案论证….62.2.1最小控制系统的选用..62.2.2语音识别模块的选用.62.2.3避障模块的选用·>2.2.4循迹模块的选用.…82.2.5稳压模块的选用2.2.6电源的选用.92.2.7电机驱动模块的选用.92.2.8电机的选用92.3本章小结10第三章系统硬件设计……113.1系统硬件介绍.113.1.1单片机父3.1.2语音识别传感器和喇以133.1.3避障模块…143.1.4循迹模块153.1.5直流稳压模块4444444444444444444444444444444423.1.6电源、开关和电量显示.16III