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本文探讨了实时工业控制计算机系统中的有限词汇语音合成技术。在分析这类系统的特点和基本要求的基础上，提出了实现的一般方法。介绍了具有RS－422A通信接口的语音合成系统的设计。该系统采用ADPCM语音合成方式，由双80C31控制，其中一个80C31增强通信功能。系统音质好、可靠性高，能满足工业控制计算机系统的实时性的要求，并已应用于工业测控计算机系统。
This article explores the finite word speech synthesis technology in real-time industrial control computer systems. Based on the analysis of the characteristics and basic requirements of such systems, a general method of implementation is proposed. The design of speech synthesis system with RS-422A communication interface is introduced. The system uses ADPCM voice synthesis, controlled by dual 80C31, one of the 80C31 enhanced communication. System sound quality, high reliability, industrial control computer systems to meet the real-time requirements, and has been applied to industrial monitoring and control computer systems.