Abstract

To ensure continuity of a UPnP A/V session following a user's movement trajectory in the home, we designed a RFID-based UPnP A/V session manager. It automatically detects a user's movement with an RFID reader, and captures or restores the states of playing A/V contents using the UPnP AVTransport service which defines a common model for A/V transport control. We present the functions and control flow operation of the designed session manager, and describe how its state is changed by the event messages generated by an RFID reader or its internal timer, and explain an algorithm for controlling access of multi-users at the same time.

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