摘要
针对市场上供盲人使用的导盲拐杖结构简单,功能单一,无法实现较好导盲效果的弱点,设计了一款以单片机AT89C52为主控件,具有GPS坐标定位、超声波测障、语音提示等功能的智能拐杖;介绍了智能拐杖的组成结构和工作原理;在分析GPS信号语句格式和处理流程的基础上,设计了硬件电路和实现软件编程;利用超声波发射和接受电路实现了测障报警功能;基于SYN6288语音合成芯片实现定位、时间信息的语音输出功能;有效地实现了导盲拐杖智能化操作和多功能扩展。
Aiming at the weakness of blind guide cane on the market with simple structure and function which is unable to achieve a good blind guiding function,an intelligent cane controlled by AT89C52 is designed,which has the function of GPS positioning,ultrasonic detection of obstacles and voice prompting.Described the composition and working principle of the intelligent cane;basis in the anglicizing of GPS signal statement format and process to make the hardware circuit design and realization of software programming.Use of ultrasonic transmitting and receiving circuit to achieve the functions of testing the barrier and alarm;also,achieved the function of voice outputting of the position coordinate and time information by using SYN6288 speech synthesis chip.So,intelligent operations and muti-functional expansion of the blind guide cane is realized effectively.
出处
《计算机测量与控制》
CSCD
北大核心
2011年第5期1154-1157,共4页
Computer Measurement &Control
基金
"西华杯"学生课外学术科技作品项目
四川省机械电子工程重点学科研究基金资助(SZD0409-08-01)
关键词
导盲拐杖
单片机
GPS定位
超声波测障
语音提示
guiding blind cane
singlechip
GPS positioning
ultrasonic detection of obstacles
voice prompts
