A real-time remote data acquisition system based on Ethernet is presented. The whole scheme of the system is analyzed and the hardware design of the system is discussed in detail. The work principle of A/D conversion circuit and the key problem to be paid attention to in designing A/D conversion is elaborated. This system solves the problem of interface between data acquisition board and Ethernet. By analyzing the real-time display data or history data on Labview platform, people can easily find the law of health of big structural.
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