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RFID Read and Write: How RFID Data Is Read, Written, Locked, and Verified in Real Deployments

In RFID systems, read means the reader detects a tag and retrieves data from its memory. Write means the reader changes data stored on the tag (for example, writing a new EPC or user data), sometimes followed by locking that data to prevent future changes. Most commercial RFID deployments use UHF (RAIN RFID) for longer range and fast bulk scanning. The core air-interface […]