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Currently the following drivers are available to convert sensor's raw data to NRT Data Format:

Name	Sensor types	Language
adcpToNrt	RDI ADCP instruments (format pd0 data format such as contained in files .enc, .enx, ...)	Python
ctdToNrt	Sea & Sun Technologies's CTD (format provided by STA acquisition software)	Python
ferryboxToNrt	4h-Jena Ferrybox	Python
sbe38ToNrt	Seabird SBE38 temperature probe (format provided by probe itself via serial line)	Python
snowbuoyToNrt		Python
toa5ToNrt		Python

Drivers can be programmed and installed in the NRT Ingester environment. Python is currently the prefered language.

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Plain-text table having columns for each parameter and rows for each individual time record.

What	How
Character encoding	UTF-8 The NRT Ingester can be manually configured to interprete other encodings, too, if necessary.
Field / column separator	Tabulator “\t”
End of record marker	New line “\n”
Header	The header must consist of a column named “datetime” and 1-n columns having a valid parameter URN (from Sensor.awi.de) as column header field. The “datetime” column must always be the first column. `datetime type:dev:parameter1 type:dev:parameter2`
Header - Units	Units may be given in square brackets [], following each parameter URN, separated by a space “ “: `datetime type:dev:parameter1 [°C] type:dev:parameter2 []` Units are optional depending on the O2A component and application. Data-WS exports the unit in a data request output (or [] if not defined). Data-WS ignores a passed unit when importing data NRT Ingester passes units to the Data-WS. Only if a new (not existing) parameter URN is created in the Data-WS the unit is added to that. Existing parameter URNs and their existing units are not updated by a change of the unit.
Quality Flags	Quality flags can be added to each data value. These are numbers from 0 to n defined in document not defined yet. Each data column needs an additional column titled with the same parameter URN followed by “ `(quality_flag)`”: `datetime vessel:mya:temp vessel:mya:temp (quality_flag)2019-02-28 15:50:00 56.00000 12019-02-28 15:50:01 566.0000 2`
Date time format	Expected time zone: UTC Allowed date formats: `yyyy-mm-dd HH:MM:SS.fffyyyy-mm-dd HH:MM:SSyyyy-mm-ddTHH:MM:SS.fffyyyy-mm-ddTHH:MM:SS`
Decimal symbol	Dot "."
Data values	Decimal values, integer numbers or characters (without containing tabulators!) `34.56556 23 334.43E-2 SAMPLE1` For use of Data-WS only: The Data-WS currently only accepts numbers as input. Given characters or words (such as “inf”, “NaN”, “SAMPLE1”) will result in an import error.
Error values	Empty field (simply give a null string, but do not forget to add tabs as data field separator)

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