| 摘要 |
PURPOSE:To speed up the detection of an abnormal state of each station by converting a demodulated short/long signal into an equal length signal and monitoring the status of a slave station depending on the selected equal length signal. CONSTITUTION:Conversion means 2-1-2-n convert a short/long signal fed from demodulation means 1-1-1-n into an equal length signal and stores the result. The status information being the equal length signal stored in the conversion means 2-1-2-n is selected by a selecting means 3 and fed to a centralized monitoring means 4 in the unit of a series of status information. Then the centralized monitoring means 4 monitors the state of each slave station depending on the status information. For example, the average transfer speed of an FSK signal fed to the demodulation means 1-1-1-n is 50 Baud and since the conversion means 2-1-2-n store the speed corresponding to each station, the speed selected by the selecting means 3 and given to the centralized monitoring means 4 is far faster. Thus, a series of information in the FSK signal sent from each slave station is fed to the centralized monitoring means at nearly the same time as the longest time. |
