CYCLIC TELEGRAPHIC MESSAGE TRANSFER METHOD, AND RELAY SLAVE STATION

摘要

PROBLEM TO BE SOLVED: To provide a relay slave station constituting a multistage relay data collecting system for exchanging a cyclic telegraphic message when collision occurs in data transfer. SOLUTION: The station includes a near distance communication means 11; a cyclic telegraphic message relay means 12; a cyclic telegraphic message storing means 13; a data collection addition means 14; a cyclic telegraphic message generating means 15; a capacity comparing means 16; a transfer rejection generating means 17; a dense arrangement transfer requesting means 18; and a cyclic telegraphic dense arrangement means 19. A cyclic telegraphic message for the portion of at most the free capacity is densely arranged and transferred to the relay slave station with a large free area in the cyclic telegraphic storing means. The cyclic telegraphic message transferred at first from the relay slave station with the large free area is stored in the free area of a cyclic telegraphic message storage area which is generated as the result of the transfer. The remaining of the densely arranged cyclic telegraphic message is transferred to the relay slave station with the large free area. COPYRIGHT: (C)2005,JPO&NCIPI