本文介绍基于M30620SFP 和多线程技术设计的一种低成本、高可靠性计算机单串口对16 个远程终端双音多频(DTMF)并行通信的计算机控制系统,分析了系统的控制原 理,给出了系统的硬件设计电路和软件设计思想。 关键字: 双音多频;并行通信;控制系统 Abstract:The paper introduces a low price and high stable computer single serial port to 16 remote terminals DTMF parallel communication computer control system designed with M30620SFP and multithread technology, analyzes the system control principle, and gives the system’s hardware design electric circuit and the software design idea. Key words:DTMF; parallel communication; control system;