列车时刻问讯电话自动应答系统设计

The Design of Automatic Speeching-answer System for Phone Calls to Ask the Railway Schedule

本文介绍了一个以微机控制和数字语音技术为基础的列车时刻问讯电话自动应答系统的功能、总体方案以及ＣＲＴ显示、语音产生、二次拨号接收等关键电路的结构和工作原理．

This article introduces an automatic speeching-answer system for phone calls to ask railway schedule, which is based on microcomputer and voice digital processing technology. The function and scheme of this system and the design of some circuits including CRT dispay,s econd dial receiving and speech producing are also mentioned.