摘要
为解决盲人交通问题,研究开发了一种新型交通语音提示系统。采用AT89S51单片机结合无线射频芯片NRF401的方法,为盲人设计一套便携式的信号发送/接收终端,以半双工通信的方式和ISD1420语音录放模块来共同实现交通灯信号的无线语音提示功能,性能比现有语音提示系统有了较大提高。
To resolve the traffic problem of blindman, this paper introduces a new kind of method which uses MCU AT89S51 together with NRF401 to design a convenient signal transmitting/receiving terminal in stead of the existing traffic light system. It actualizes the function of wireless suggestive voice by using voice recording/playing back module ISD1420. The signal transmits by the method of half duplex communication. The new system＇s performance is better than the existing system＇s by testing and verifying.
出处
《电子技术应用》
北大核心
2007年第10期125-127,共3页
Application of Electronic Technique
