115 lines
4.5 KiB
Markdown
115 lines
4.5 KiB
Markdown
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# Deprecated!!
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The following markers are defined:
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1. CF (0x 43 46)
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1. CK (0x 43 4b)
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1. NO (0x 4e 4f)
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1. CG (0x 43 47)
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1. CD (0x 43 44)
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1. NT (0x 4e 54)
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1. CC (0x 43 43)
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1. CP (0x 43 50)
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1. CR (0x 43 52)
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1. CN (0x 43 4e)
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1. Cb (0x 43 62)
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1. CS (0x 43 53)
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Each of these markers are followed by multiple commata (0x 2c) separated parameters
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and are terminated by a semicolon `;` = 0x 3b, except for the sequence following
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the data marker CS, that may have any number of 0x3b occurencies, while still
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terminated by a semicolon at the very end of the file (since CS is the last marker
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section in the file). The markers have the following meaning:
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- *CF* (3 parameters)
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`|CF,2,1,1;`
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specifies file format, key length and processor
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- *CK* (4 parameters)
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`|CK,1,3,1,1;`
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start of group of keys
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- *NO* (6 parameters)
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`|NO,1,85,0,77,imc STUDIO 5.0 R3 (10.09.2015)@imc DEVICES 2.8R7 (26.8.2015)@imcDev__15190567,0,;`
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origin of the file, provides some info about the software package/device
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and its version
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- *CB* (6 parameters)
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group definition
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- *CT* (8 parameters)
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text definition
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- *CG* (5 parameters)
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`|CG,1,5,1,1,1;`
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definition of a data field
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|CG,1,KeyLang,AnzahlKomponenten,Feldtyp,Dimension;
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- *CD* (mostly 11 parameters)
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since we're dealing with measured entities from the lab this markers contains
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info about the measurement frequency, i.e. sample rate. For instance
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`|CD,2, 63, 5.0000000000000001E-03,1,1,s,0,0,0, 0.0000000000000000E+00,1;`
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indicates a measured entity every 0.005 seconds, i.e. a sample rate = 200Hz
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- *NT* (7 parameters)
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`|NT,1,16,1,1,1980,0,0,0.0;`
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|NT,1,KeyLang,Tag,Monat,Jahr,Stunden,Minuten,Sekunden;
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triggerzeit
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- *CC* (mostly 4 parameters)
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`|CC,1,3,1,1;`
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Start einer Komponente (component)
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- *CP* (9 parameters)
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`|CP,1,16,1,4,7,32,0,0,1,0;`
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Pack-Information zu dieser Komponente
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CP,1,KeyLang,BufferReferenz,Bytes,Zahlenformat,SignBits,Maske,Offset,DirekteFolgeAnzahl,AbstandBytes;
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Bytes = 1...8
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Zahlenformat : 1 = unsigned byte
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2 = signed byte
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3 = unsigned short
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4 = signed short
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5 = unsigned long
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6 = signed long
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7 = float
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8 = double
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9 = imc Devices
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10 = timestamp ascii
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11 =
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12 =
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13 =
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- *CR* (7 parameters)
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Wertebereich der Komponente, nur bei analogen, nicht bei digitalen Daten.
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|CR,1,KeyLang,Transformieren,Faktor,Offset,Kalibriert,EinheitLang, Einheit;
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provides the _physical unit_ of the measured entity, maybe shows the
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minimum and maximum value during the measurment, e.g.
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`|CR,1,60,0, 1.0000000000000000E+00, 0.0000000000000000E+00,1,4,mbar;`
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Transformieren : 0 = nein
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1 = ja, mit faktor und offset transformieren (für ganzzahlige Rohdaten)
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Faktor,Offset: physikalischer Wert = Faktor * Rohdatenwerten + Offset
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- *CN* (mostly 9 parameters)
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gives the _name_ of the measured entity
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|CN,1,KeyLang,IndexGruppe,0,IndexBit,NameLang,Name,KommLang,Kommentar;
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`|CN,1,27,0,0,0,15,pressure_Vacuum,0,;`
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- *Cb* (mostly 14 paramters) (optional?)
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this one probably gives the minimum/maximum measured values!!
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`|Cb,1,117,1,0,1,1,0,341288,0,341288,1,0.0000000000000000E+00,1.1781711390000000E+09,;`
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- *CS* (mostly 4 parameters)
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this markers announces the actual measurement data in binary format,
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provide the number of values and the actual data,
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e.g. `|CS,1, 341299, 1, ...data... ;`
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### Open Issues and question?
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- which parameter indicate(s) little vs. big endian?
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## .parquet-file writer
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The extracted and converted data originating from the *.raw file format may be efficiently grouped and
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written as .parquet files
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[parquet file writer example](https://github.com/apache/parquet-cpp/blob/master/examples/low-level-api/reader-writer.cc)
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## References
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- https://ch.mathworks.com/matlabcentral/fileexchange/30187-sequnce-to-read-famos-data-into-matlab-workspace
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- https://community.ptc.com/t5/PTC-Mathcad/FAMOS-IMC-raw-data-in-MathCAD/td-p/130378
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- http://marmatek.com/wp-content/uploads/2014/04/imc_STUDIO_Manual.pdf
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### Parquet
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- https://github.com/apache/parquet-cpp
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- https://github.com/apache/parquet-cpp/tree/master/examples
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