摘 要:本设计基于飞思卡尔Kinetis®KL26P121M48SF4RM 单片机,通过LD3320 语音芯片接收语音信息,并传输到Kinetis®KL26 单片机依次通过语音信息预处理、语音信息优化处理和特殊语音信息处理,对采集到的语音信息进行处理,提高对语音命令的执行力与准确性。针对语音信息以及其他传感器采集到的路况信息进行识别与跟踪监测。并将语音识别模块、超声波传感器、电机驱动模块等有效联结起来,组成了轮椅控制系统的主要部分,经由编程实现了轮椅的自动行驶、自动避障、语音控制等功能。本设计经验证明完全可以解放使用者的双手做到轮椅的自由操控,特别是超声波传感器的加入更是加大了轮椅的安全保障。
关键词:KL26P121M48SF4RM 单片机;语音识别;LD3320
中图分类号:TN912.34;TP368.12 文献标识码:A 文章编号:2096-4706(2019)08-0032-03
Intelligent Wheelchair Based on Voice Control
JIA Hao
(Linyi University,Linyi 276000,China)
Abstract:This design is based on Freescale Kinetis®KL26P121M48SF4RM single-chip computer. It receives voice information through LD3320 voice chip and transmits it to Kinetis®KL26 single-chip computer through voice information preprocessing,voice information optimization processing and special voice information processing in turn. The collected voice information is processed to improve the execution and accuracy of voice commands. Speech information and road condition information collected by other sensors are identified and monitored. The speech recognition module,ultrasonic sensor and motor drive module are effectively connected to form the main part of the wheelchair control system. The functions of automatic driving,obstacle avoidance and voice control of wheelchair are realized by programming. The design experience proves that the user’s hands can be freely manipulated,especially the addition of ultrasonic sensors enhances the safety of the wheelchair.
Keywords:KL26P121M48SF4RM MCU;speech recognition;LD3320
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作者简介:贾豪(1997.05-),男,汉族,山东菏泽人,本科,研究方向:自动化。