| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a communication system capable of excellently communicating information signals. <P>SOLUTION: A point-to-multipoint communication system includes: a determination means for determining the allowable amount of signals permitted to be transmitted to a slave unit for each kind of information relating to the signals on the basis of the amount of accumulated signals declared from the slave unit; a transmission wait time determination means for determining a transmission wait time so as to give a transmission permission to transmit, from among the signals, signals of a type whose allowable delay time is short, within a fixed time; and a transmission instruction means for periodically instructing the slave unit to transmit the signals based on the allowable amount determined by the determination means on the basis of the transmission wait time determined by the transmission wait time determination means for the signals of the type whose allowable delay time is short, and instructing the slave unit to transmit the signals based on the allowable amount determined by the determination means with the remaining transmission capacity after instructing the transmission of information signals of the type whose allowable delay time is short, for signals of a type whose allowable delay time is longer relatively to the signals of the type whose allowable delay time is short. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
