| 摘要 |
PROBLEM TO BE SOLVED: To avoid uncollection of data due to expiration of time of a data request. SOLUTION: A control means 13 of the slave radio equipment 1 discriminates whether or not a retrial request comes within a prescribed time when a data request from a center equipment sent via a master radio equipment means through a radio channel is not normally finished due to expiration of time, and controls a radio communication circuit 10 to send data stored in a storage means 12 to the center equipment via a meter radio equipment means when a retrial request is received from the center equipment. Furthermore, when no retrial request is received from the center equipment within a prescribed time, the control means 13 controls the radio communication circuit 10 to send the data stored in the storage means 12 to the center equipment by the transmission of the slave radio equipment. |
