Patent ID: 7860917
Filing Date: 2010-12-28
Classification: H04L,H04W

Abstract:
1. A sensor network system comprising: a plurality of mobile sensor nodes, each of which includes a sensor which obtains data from users of said sensor network, and a transmission unit which transmits the data including an identifier for identifying the data from an associated sensor node; a first base station and a second base station each of which receives the data; a first distributed processing server connected to said first base station and a second distributed processing server connected to said second base station, each of which includes a reception unit which receives the data transmitted from said sensor node through said base stations; an extractor which extracts said identifier from the received data; a memory which records a list which holds said identifier and the data corresponding to said identifier; a judging module which judges whether or not said extracted identifier is held in said list; an executer which stores said data in said memory based on the judgment results of said judging module; a management server which comprises a system manager which manages said identifier of each of said sensor nodes and an associated said first distributed processing server for holding the data associated with said identifier, wherein: when said first distributed processing server receives the data transmitted from said mobile sensor node, the executer of said first distributed processing server holds the data as a preset process, when said mobile sensor node moves from said first base station to said second base station and said second distributed processing server receives the data transmitted from said mobile sensor node, if said extracted identifier is held in said list, said executer of said second distributed processing server transfers the data to said first distributed processing server as said preset process, and if said extracted identifier is not held in said list, said second distributed processing server makes an inquiry to said management server, said management server transmits the location of said first distributed processing server, and said second distributed processing server holds said extracted identifier and the location of said first distributed processing server in said list and transfers the data to said first distributed processing server.