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DEVICE FOR DETERMINING INTERIOR WIRING TERMINAL STATE, PLC ADAPTOR AND METHOD FOR DETERMINING INTERIOR WIRING TERMINAL STATE
DEVICE FOR DETERMINING INTERIOR WIRING TERMINAL STATE, PLC ADAPTOR AND METHOD FOR DETERMINING INTERIOR WIRING TERMINAL STATE
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机译:用于确定内部接线端子状态的装置,PLC适配器和用于确定内部接线端子状态的方法
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摘要
PROBLEM TO BE SOLVED: To provide a technique capable of checking power consumption of a customer while reducing additional power consumption.SOLUTION: An output section 34 outputs scanning bit string data including a piece of information on scan frequency and initial power based on the frequency. The information is broken down into data based on the scan frequency, and is decomposed into time-series digital data by an IFFT module 19. After D/A conversion by an AFE 11, the data is transmitted to a power line 10 as scanning analogue data. The power line 10 receives reflected analog data. After A/D conversion by the AFE 11, the data is converted into frequency-series reflection spectral data by the FFT module 14 and sent to a collating section 31. The collating section 31 collates a set of attenuation rate based on scan frequency with pattern data registered in a pattern correlation storing section 32 and outputs a connection state of an associated outlet as a collation result.
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