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本文在分析了各种多机通讯优劣的基础上，采取主从式总线形网络结构，利用多片单片机，构成带有主控室的多点测速监控网络。
Based on the analysis of the advantages and disadvantages of various multi-machine communication, this paper adopts the master-slave bus network structure, using multi-chip single-chip microcomputer to form multi-point speed monitoring network with main control room.