- The read range of the UHF RFID we tested was 5–7 ft., and thus one reader may not be sufficient to cover the dock. Also, any barrier significantly reduces the read range. This can be handled by installing one reader (or one antenna) at each side of the gate. Readability is significantly affected by the position and placement of reader and tags.
- The signal was unable to penetrate the spool made of metal. Therefore, placement of tags must be carefully considered on the metal spools. Also, the tag is not scanned very well when it is directly attached on the surface of the metal. We performed a factorial design and analysis to study factors that affect the read performance and