基于DSP+单片机的主从式智能轮椅语音控制系统  

Design of voice control system for intelligent wheelchair based on DSP+MCU

作　　者：于庆栋[1] 王仁杰[1] 王龙[2] 刘志兵[2] 曾庆军[2] 

机构地区：[1]江苏科技大学计算机学院,江苏镇江212003 [2]江苏科技大学电子信息学院,江苏镇江212003

出　　处：《电子设计工程》2011年第15期167-169,175,共4页Electronic Design Engineering

基　　金：江苏省"青蓝工程"中青年学术带头人项目(16112000602);江苏科技大学大学生创新计划项目

摘　　要：设计了一种以凌阳公司SPCE061A单片机为语音信息处理器,以DSP为驱动控制器的主从式智能轮椅语音控制新方案。采用SPCE061A单片机进行语音指令的训练、识别和处理,DSP作为驱动电机转动的PWM控制信号发生器,SPCE061A单片机和DSP之间通过SCI接口电路进行通信。详细阐述了智能轮椅语音控制系统各部分硬件结构及系统总体软件实现,重点讨论了电机驱动电路的硬件设计和系统软件流程。实验结果表明,研制开发的智能轮椅语音控制系统能够在语音或手动模式下实现轮椅的多种运动,语音识别正确率高于95%。A new voice control program of intelligent wheelchair which takes SPCE061A MCU as voice information processor and DSP as drive controller is designed.SPCE061A MCU is used for training,recognition and processing of voice commands;DSP is used for driving the motor rotating as the PWM control signal generator;SPCE061A MCU communicates with DSP through the SCI interface circuit.The hardware structure and the overall system software of voice control system are described in detail.Then,the hardware design of motor drive circuit and system software processes are discussed.Experimental results show that the intelligent wheelchair can achieve a variety of sports in voice or manual mode controlled by voice control system,speech recognition accuracy is more than 95%.

关 键 词：凌阳SPCE061A单片机 TMS320LF2407A DSP 语音控制 电机驱动 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]