Patent ID: 7673039

Claim:
A server apparatus, comprising: a notifying condition storing unit configured to store a predetermined condition, said predetermined condition identifying specified attribute information and a notifying condition; an identification information acquisition unit configured to acquire identification information of RF tags detected by RF tag readers; an RF tag storing unit configured to store attribute information of the RF tags by storing descriptive information corresponding to each of the separate identification information of the RF tags, wherein the descriptive information for each of the identification information includes a plurality of descriptors describing an object or person associated with a respective RF tag; an attribute information acquisition unit configured to acquire, from the RF tag storing unit, the attribute information of the RF tags having said identification information acquired by said identification information acquisition unit; a counting unit configured to count a number of RF tags corresponding to the specified attribute information identified in the predetermined condition from among said detected RF tags; a transmitting unit configured to transmit information corresponding to the predetermined condition to an external device, in the case where the number of said RF tags counted by said counting unit satisfies the predetermined condition; a receiving unit configured to receive, from the external device, the predetermined condition and destination information for the transmitting unit to use to transmit the information corresponding to the predetermined condition.