| 摘要 |
PURPOSE: To avoid anticoincidence of information by sending a data packet representing an information item repetitively at a prescribed maximum repetitive interval, based on the absence of transmission of a coincidence counter signal. CONSTITUTION: This system is provided with a communication bus 1 consisting of data lines 11, 12, and in this case, three stations 2-4 are connected to the communication bus 1. Furthermore, each station (2-4) is provided with a device (21, 31, 41) and each device (21, 31, 41) is connected to the data lines 11,12 by each interface circuit (22, 32, 42). Then a specific station provided with a global area relating information item transmits a coincident counter signal by at least a relating subset of an interconnected station actually and transmits a data packet representing an information item based on absence of the transmission of the coincidence counter signal to start updating its own relation information item repetitively at a prescribed maximum repetitive interval. |
