Research on key techniques of publish/subscribe system in RFID information services

We introduced individual-based reasoning method in description logics into the publish/subscribe system of RFID information services, and the temporal relations between events were depicted using ontology of time. Semantic-based matching and the matching between composite events and composite subscriptions which have temporal relations were solved by judging the consistency between event assertion set and subscription. Also, a subscribing language and a matching algorithm were proposed. The results of testing show that the efficiency of the matching algorithm is able to satisfy the need of application.