| 摘要 |
PURPOSE:To simplify a software and to reduce the number of lines by sending a synchronous signal with different phase from a collecting data intensive device to plural data collecting devices respectively and using the software of the data collecting device to detect the signal. CONSTITUTION:The information representing the use of a shared device and a line of two exchange units, 1a,1b at first is collected respectively by a scanner in collection data intensive devices DET-A2,3 and a DET-B4 via scanning leads 6a-6d. In this case, the DET-B4 sends the synchronous signal A having a period T to the DET-A2 via a lead 9 and sends a synchronous signal having a period T with a phase lag by a time t0 than that of the synchronous signal A to the DET-A3. Thus, the software of the DET-A2,3 uses the scanner to detect respec tively the synchronous signals A,B, the detection signal is used as a basic clock and the data collecting processing and the collection data transfer processing to the DET-B4 are attained based on the time schedule of the software proces sing. |
