| 摘要 |
<P>PROBLEM TO BE SOLVED: To make it possible to make a slave station attach to an appropriate master station without reducing communication throughput when a route is automatically constructed between a master station and a slave station. <P>SOLUTION: A master station 11 and a plurality of slave stations 12 perform communication by power line carrier communication by means of a low voltage distribution line 22 as a communication line. The master station 11 comprises: a transmission unit 111 for outputting a master station signal at prescribed timing; and an output adjustment unit 113 for adjusting the transmission level of the master station signal according to an adjustment request received through the low voltage distribution line 22. A slave station 12 comprises: a detection unit 123 for detecting a master station signal received through the low voltage distribution line 22; a request unit 124 for transmitting an adjustment request to the communication line when the detection unit 123 has detected a plurality of master station signals; a determination unit 125 for extracting a master station of which the link cost is the lowest based on master station signals transmitted by the master stations in response to the adjustment request; and a route establishment unit 126 for associating the own station with the master station such that the own station attaches to the master station extracted by the determination unit 125. <P>COPYRIGHT: (C)2013,JPO&INPIT |
