How is data stored on passive RFID tags?
Almost any data can be stored on RFID tags within the storage capacity limit. Generally, between 64 and 128 bits of encoded data fits onto an RFID tag, depending on the type of tag chosen. The data on the tag can be formatted according to global standards, such as EPC or ISO, or the data can have a custom format. RFID tags usually store binary or hexadecimal data that must be decoded in order to attain human readable data. For example, if the tag is a 96-bit EPC tag encoded using the Serial Global Trade Identifier Number (SGTIN-96) format, the hexadecimal data stored on the tag could be 30700048440663802E185523. After converting this into a binary value and decoding the binary, the URI representation of the data is urn:epc:tag:sgtin-96:3.0037000.06542.773346595. URI’s encoded using the SGTIN-96 format can be broken down into six components.
