WIRELESS SENSOR NETWORK SYSTEM, WIRELESS TERMINAL, AND DATA COLLECTION METHOD USING WIRELESS SENSOR NETWORK

摘要

PROBLEM TO BE SOLVED: To mitigate deterioration in an arrival factor caused by communication congestion around a collection destination by making data transmitted from a data generation source arrive at the collection destination while being data-transmitted in a spiral shape.;SOLUTION: A data generation source W performs data transmission by selecting a data generation source O which exists in a clockwise direction from the data generation source W and belongs to a zone closer to a collection destination than that of the data generation source W and having a smaller number than that of the data generation source W. Similarly, the data generation source O performs data transmission by selecting a data generation source P which exists in the clockwise direction from the data generation source O and belongs to the same zone as the data generation source O. The data generation source P performs data transmission by selecting a data generation source H which belongs to a zone closer to the collection destination than that of the data generation source P and having a smaller number than that of the data generation source P. Similarly to the data generation source O, the data generation source H performs data transmission by selecting a data generation source I which exists in the clockwise direction from the data generation source H and belongs to the same zone as the data generation source H. The data generation source I performs data transmission by selecting a data generation source C which belongs to a zone closer to the collection destination than that of the data generation source I and having a smaller number than that of the data generation source I. Finally, the data generation source C transfers data to the collection destination.;COPYRIGHT: (C)2014,JPO&INPIT