| 摘要 |
PURPOSE:To improve the efficiency of usage of buses, by determining the user of the bus statistically from the usage state of the buses up to now, in a right of transmission control system of a transmission system where a plurality of stations are connected to a single bus. CONSTITUTION:Stations 1-4 make communication via the bus 5. The stations 1-4 consist of a communication body comprising a computer and a terminal, of a circuit 1e taking an interface, a transmission and reception control section 1c, a transmitter 1a, a receiver 1b, and a monitor 1d. The section 1d stores two sets of time; time interval Ti transmitting data by a station (i) at each station, and time ti from the final transmission, and calculates Ti-ti. When the bus is idle, the station (i) having the minimum value of Ti-ti controls the Ic for transmission. |
