processing application written in QT and C++ is used to analyse the raw
records transmitted by the firmware. This has following functions:
raw incoming data records generated between time records into a single
csv record for the
particular time instant. These are stored in a csv file for import into
spreadsheet program. This conversion allows the values for each entity
to be aligned in columns in a spreadsheet. The "Dump All" button
produces the full file having all fields present.
- Extract all such records between specified time intervals and/or for up to 5 specified fields.
raw data files and extract records automatically into separate
contiguous "day" files. This reduces the size of a large dataset to a
more manageable series of files.
- Analyse the energy in ampere-hours generated by the module and used by the loads for all interfaces over a given period.
plots of currents and voltages for the batteries and solar module to
assist in identification of problems. These are generated from the csv
files produced from a full dump of the data.
analysis that attempts to identify when the charger is not allocated
despite there being a battery that can be put under charge. Fault
analysis is still under development. This will be used to identify
problems with the automatic battery monitoring algorithms.
The plots can use any csv data file that has been created by this utility.
This means that the utility must be used first to transform
of the raw data files to an output csv file either over the whole period
or into a day by day set of files. At this stage the entire csv file is
graphed and there is no facility to zoom or pan the graphs.
Plot of battery voltages over a day using the plot functions.