| 摘要 |
PROBLEM TO BE SOLVED: To control a plurality of nodes distributed and arranged in a wide area in a short time and with high reliability even under phasing environment, in a wireless mesh network.SOLUTION: A wireless mesh network system comprises: a controlling node C; a plurality of multicasting nodes M; and a plurality of controlled nodes N. The controlling node C sequentially transmits a multicast generating frame including the same control data by unicast to each of multicasting nodes M. The multicasting nodes M generate a multicast frame including control data on the basis of the multicast generating frame and transmit it to the controlled nodes N by multicast. The controlled node N analyzes the control data of the received multicasting frame and perform application processing on the basis of the control data of the received multicast frame. The frame including the same control data is discarded if it has already been received to prevent duplication. |
