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介绍了以同步计数为基础，用分割时间片的方法控制集散型测控系统的通信过程的基本原理，该方法解决了总线争用问题，大大提高了通信的有效性与实时性、并提高了设备的利用率。
The basic principle of controlling the communication process of distributed measurement and control system based on synchronous counting is introduced. The method solves the problem of bus contention, greatly improves the efficiency and real-time of communication, and improves the equipment Utilization rate.