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Multi-tag RFID System Enables Localization and Tracking
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DOI：10.1088/1742-6596/1168/2/022103.png)
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摘要
En 中文
In many applications, we have to locate and track the object. RFID technology has been widely adopted in logistics, one of whose most promising applications is to play an important role in high tracking accurately. In this paper, a new localization and tracking scheme by an antenna arranged in advance and multiple tags attached to the object has been proposed, a fine-grained backscatter positioning technique detects phase which is used to reflect positional relationship between the tag and the antenna, but challenged by its periodicity and tag's diversity. Some phase changes of multiple tags construct a series of velocity chains, and the relationship between velocity projections solve the velocity of the object. Our system exhibits several benefits : 1) Only arrange one antenna. 2) Battery-free RFID avoids increasing the burden of power and load on the mobile platform. Many experiments have been conducted on linear motion and nonlinear motion. Compared with the other two schemes, our scheme has obvious advantages in accuracy and efficiency.
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