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讨论了远程数据采集系统中的通信技术，提出了采用调制解调器作为采集系统通信接口的方案，介绍了该方案的系统构成和通讯协议，并给出了Ｗｉｎｄｏｗｓ９５下对调制解调器的编程．该方案已应用于某导航站监控系统，并取得了理想效果．
The communication technology in the remote data acquisition system is discussed. The scheme of using the modem as the communication interface of the acquisition system is proposed. The system constitution and communication protocol of the scheme are introduced. The programming of the modem under Windows95 is also given. The program has been applied to a navigation station monitoring system, and achieved the desired results.