Passive tags are mounted on pallets or cartons. A tag consists of a chip used to store the identifying bit sequence and an antenna used to communicate with the reader. The assembled chip and antenna of this passive tag sits on a 3×5 in. a piece of material with a peel-and-stick adhesive back- ing. Multiple parts are stored in a carton which is packed on a pallet. One tag is used for one part of each type.
The information stored inside the tag is coding based on 16 bits of ASCII and each category can store 0~9 numbers and alphabetical A~F for English RFID. The RFID tag used in this study has a storage capacity of 12 bytes sufficient for storing 24 ASCII codes. The information stored in tag is a combination of part identification number, type, quantity, and adjustment date.