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In order to solve different types of sensors incompatible issues,based on IEEE1451 standards proposed unified sensor TEDS Interface. A STIM designing scheme of IEEE1451.2 standard is proposed taking the temperature sensor AD590. A TEDS and its data formats are gave an outline,which is formed by MATLAB and Loaded in FPGA ROM IP core, So that it is with the advantage of both the virtual TEDS and The hardware TEDS; Using FPGA as the central processing unit controls the transfer of data between the main bus adapter . an protective circuit is designed to avoid damage caused by over-current when implementing plug and play.finally,the tansduser’s self-identification and self-mangement for information are achieved.