| 摘要 |
PURPOSE:To enable a CPU to collect data efficiently by transmitting data from terminals to the CPU when the terminals originates dial information automatically to the CPU at the specified time by time information and the CPU responds to the dial information. CONSTITUTION:The time information of a timer part 42 in each terminal 41-4n is subtracted by a timer subtracting part 43 in each prescribed value at a fixed period. When the time information value reaches ''0'', the fact is informed to a dial information storing part 41 and a control part 46. Consequently, the dial information of the CPU1 stored in the storing part 41 is automatically sent to a switching network 2 through a communication controlling part 47 and an originating device and then sent from the switching network 2 to the CPU1. When the CPU1 sends a response signal to the terminals 41-4n and the terminals 41-4n recognize the signal, the terminals 41-4n transmit data accumulated in a data accumulating part 45 to the CPU1. |
