In this fast developing period the use of RFID have become more significant in many applicationdomaindue to drastic cut down in the price of the RFID tags. This technology is evolving as a means oftracking objects and inventory items. One such diversified application domain is in Supply ChainManagement where RFID is being applied as the manufacturers and distributers need to analyse productand logistic information in order to get the right quantity of products arriving at the right time to the rightlocations. Usually the RFID tag information collected from RFID readers is stored in remote database andthe RFID data is being analyzed by querying data from this database based on path encoding method bythe property of prime numbers. In this paper we propose an improved encoding scheme that encodes theflows of objects in RFID tag movement. A Trajectory of moving RFID tags consists of a sequence oftagsthat changes over time. With the integration of wireless communications and positioning technologies,the concept of Trajectory Database has become increasingly important, and has posed great challenges tothe data mining community.The support of efficient trajectory similarity techniques is indisputably veryimportant for the quality of data analysis tasks in Supply Chain Traffic which will enable similar productmovements.
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