To make the wireless sensor network used for intelligent workshop products tracking system, firstly, the moving target tracking technology of wireless sensor networks was introduced and the target positioning technique based on ranging was emphatically analysed, which laid the technical foundation for the construction of moving target tracking system of wireless sensor network. Then, the extended Kalman filter algorithm with less calculation and high tracking accuracy and implementation steps

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... untraced Kalman algorithm were analysed and summarized. C++ programming language was used to transform untraced Kalman filtering algorithm into intelligent workshop product practical tracking algorithm module. Moreover, the two algorithms were used in the workshop product tracking system based on wireless sensor network. The result showed that the system could realize the tracking effect of high precision and low power consumption. To sum up, the comparison of many groups of experiments also proves the performance difference of these two algorithms in the practical application.