| 摘要 |
FIELD: information technologies. ^ SUBSTANCE: system comprises central device for collection and transmission of data to communication channels with parties interested in data accounting, AC electric circuit, terminal devices for data collection and transmission, central data collection and transmission device (DCTD), measuring instruments, at that central DCTD comprises the first coupler, band filter, analog-to-digital converter, external interface unit, unit of fast Fourier transformation and solving unit, and every terminal DCTD contains the second coupler, digital-to-analog converter, low pass filter, microcontroller, modulator and generator of sinusoidal signal. ^ EFFECT: improved reliability of system operation. ^ 2 dwg
|
