1、 语音遥控小汽车控制系统设计 摘 要 语音信号处理是许多信息领域应用的的核心技术之一，是目前发展 最为迅速的的信息科学研究领域中的一个。本文将语音技术与单片机结 合起来，设计了小汽车语音控制系统，通过语音指令对小汽车的行驶状 态进行控制，实现小汽车的前进、后退、左转、右转及停车。本设计主 要利用AT89C52单片机作为核心器件实现对电动小汽车行驶过程进行控 制，采用语音识别芯片AP7003，实现对特定人的语音识别，并通过I/O 口将识别信息传递给单片机，实现对小汽车行驶状态的控制；利用红外 传感器探测小汽车行驶路线中的障碍物，并将探测信息传递给单片机， 实现小汽车的自动避障；用光电开关检测履带
2、转过的次数，实现对小汽 车行驶里程的检测，并用数码管显示小汽车的行驶里程。 关键词：语音识别；单片机；红外传感器；光电开关 Abstract Voice signal processing is a nuclear technology which is used in many information fields. It is one of the fastest developed technologies. This paper designs a voice control system of autocar though integrating of MCU and voice s
3、ignal processing. It is available to control autocars situation, such as moveforward, moveback, turnleft, turnright and stop by voice command. AT89C52 is used in this paper as the core device to control the motion process of the car. Voice recognition chip AP7003 allows the voice recognitin of speci
4、al person, then send the information of I/O port back to MCU which control the cars situation by this information. By infrared sensor detecting obstacles in the way of the car, the car can avoid obstacles automatically by the control of MCU based on the information of inspection. The milegae of the car is recorded by photoelectric switches, which count numbers of the wheels passed, and is displayed by 7-seg LED. Keywords: voice recognition; Micro Control Unit（MCU）; infrared sensor; photoele
