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Having a system that tracks movement typically relies on an active RFID system. That means setting up ultra-wideband (UWB) or Bluetooth Low Energy (BLE) sensors. The latest specifications of BLE technology, for instance, can track movement and identify location within a meter or less. UWB provides very precise location, even to within a matter of centimeters. Passive RFID, such as UHF or HF RFID tags, while less expensive and battery-free, would not provide the kind of location reference to enable movement detection. Good luck with your project!
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