Elspec G4430 - Page 141

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ELSPEC
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 Compressed Data Files: The compressed harmonic d ata is being o rganized
in b locks o f u p t o 5 m inutes o f co ncurrent cy cles an d b eing s tored al ong
with the measured frequency of every cycle and reference time stamps into
a PQZIP file residing on the onboard flash memory. The typical compression
ratio expected as a ratio between incoming data volume on block 3 and the
data being stored is 1000:1.
 Compressed PQZIP Data File Transferral: The P QZIP f iles can b e
downloaded au tomatically o r m anually o ver a n umber o f c ommunication
gateways for further storage and analysis.
 SQL Database Server: The resulting data is stored in the SQL database for
long term storage. The compressed data is then reorganized and optimized
for fast access while in a compressed state.
 Parameterization: When required, the data is decompressed, recovering a
full s pectrum o f all t he el ectrical p arameters f or each cycle, at t he
associated time stamps.
 Waveform Reconstruction RMS Calculation: The sp ectral d ata can further
be used to reconstruct waveforms f or any individual cycle at an extremely
high r esolution w ith ac curate t ime an d cy cle duration. A ny p ossible
electrical p arameters can b e c alculated b ased o n the data b y r etrieving
precise accuracy and wave shape.
 Investigator: The w aveform d isplayed b y t he I nvestigator a pplication is
reconstructed based o n co mpressed spectral data o f ev ery c oncurrent
network cy cle. I n a ddition, v irtually an y el ectrical p arameter c an be
calculated based on that data and displayed at any resolution or time span.
SEE ALSO
 Default Settings
 PQZIP Recording - Configuration
 Enabling / Disabling PQZIP
 FIFO
 Fixed Quality vs. Fixed Ratio
 File Capacity
 FFT Mode
 Erase All PQZIP Data
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