Supporting RFID-based Item Tracking Applications in Oracle DBMS Using a Bitmap Datatype Ying Hu, Seema Sundara, Timothy Chorma, Jagannathan Srinivasan Oracle New England Development Center One Oracle Drive, Nashua, NH 03062
A Bitmap Datatype
Radio Frequency Identification
RFID uses radio frequency to automatically detect and identify individual items, which have RFID tags associated with them.
RFID technology is increasingly being used in applications such as
Supply Chain Management, and
Electronic Product Codes (EPCs)
EPC is a standard naming scheme proposed by Auto-Id Center for RFID applications.
An EPC uniquely identifies an item. It contains
< Header , Manager No., Object Class , Serial No.>
The header identifies the format of the EPCtype, the next two components identify the product, whereas the last component uniquely identifies the item within the product.
RFID Technology enables item tracking applications
However, there is a need for efficient mechanism for managing the high volume of item tracking information .
A Bitmap Type for Item Tracking
Key Observation : RFID Items can be efficiently tracked by tracking the groups to which an item belongs. For example
Groups of items in the same proximity : e.g. on a shelf, on a shipment
Groups of items with same property : e.g. items of a single product, items of a single product with same expiry date
Our Solution : Use a bitmap type for modeling a collection of EPCs that can occur in item tracking applications.