Read and convert Mechbase files (.dr) to known file formats
Project description
DR Files
Read and convert MECHBASE files (.dr) to known file formats
MECHBASE
MECHBASE® is a complete preventive solution that was developed by Arpedon, P.C., in order to help you store and trend your equipment status.
MECHBASE files format
MECHBASE files have the following structure:
- 2 bytes - the size of the header in bytes, in little-endian short integer format
- next N bytes - the header, in this protobuf format
- remaining bytes - the values of the signals, with each value represented in 2 bytes, like below (signal has 3 channels in this example):
- next 2 bytes - first value of the first channel, in little-endian short integer format
- next 2 bytes - first value of the second channel, in little-endian short integer format
- next 2 bytes - first value of the third channel, in little-endian short integer format
- next 2 bytes - second value of the first channel, in little-endian short integer format
- next 2 bytes - second value of the second channel, in little-endian short integer format
- next 2 bytes - second value of the third channel, in little-endian short integer format
- ...
Converting values to actual measured values
- divide the value by the maximum short value (32767)
- multiply the value with the channel reference value
- add the channel offset to the value
- multiply the value with 1000 and divide by the channel sensitivity value
- if channel db_reference exists and is positive
- multiply the log10 of the absolute value divided by the db_reference with 20 -
20 * log10(abs(value) / db_reference)
- add the channel pregain to the value
- multiply the log10 of the absolute value divided by the db_reference with 20 -
Reference code can be found in the value_converter
function.
Project details
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
dr_files-0.1.2.tar.gz
(6.0 kB
view hashes)