Logs

Boreas features an on-board high capacity data logging system. Logging is enabled by default, but by default no specific data is configured to be logged. To enable logging of specific data packets or messages, see the Logging section on the Data Ports page (in the Configuration Menu).

If any log files exist on the Boreas they will appear on this page in a list, with the most recent at the top. The log file name includes the date and time the log file recording commenced, using UTC time, in the format BoreasLog_yy-mm-dd_hh-mm-ss.xxx. The log file extension identifies the file type.

If the time and date in the log file name is incorrect, this usually indicates that Boreas does not have a GNSS fix and has therefore not yet determined the correct time.

Note that the logging configuration and recorded log files can only be accessed by the web UI. You cannot use the serial port interfaces.

Note: If there is a requirement not to store potentially sensitive information, it is possible to order Boreas without internal storage. If this is the case, no internal logging will be possible.

Enabling and Disabling Logging

To enable or disable the logging functionality, select or deselect the Enable Logging check box and click Save Changes.

The log file currently being recorded is highlighted in green.

If recording an ANPP-format log file, the log file will include the current Boreas device configuration.

Limiting the Maximum Log File Size

If you wish to limit the maximum file size for individual log files, select the Enable Splitting check box, enter a Max Log Size (in MiB), and then click the Save Changes button. This will not affect pre-existing log files but will affect the currently recording log file. Note this will round down to an integer if you enter a number with decimal places.

Downloading Log Files

You can download individual log files by simply clicking on them. Note, only one log file can be downloaded at a time using this method.

To download multiple log files, first select the files required, and then click the Download Selected button. This will download all the files to your computer and compress them into one ZIP file. Note, it may appear that nothing is happening during this process, and it can take some time to complete.

You can select all log files using the Select All button, or individually select log files using the check box on the left of the log file name.

Deleting Log Files

You can delete log files by selecting the specific log file(s) using the check box to the left of the log file name, or using the Select All button, and then click the Delete Selected button.

For bulk erasing ALL log files you can use the Format button. This will erase all log files irrecoverably. Note, it can take some time.

Starting New Log Files

The Start New Log button will stop writing the current log file and commence writing a new file. This new file will also include the current Boreas device configuration. If logging is currently not enabled, this button will not do anything.

Viewing Logged Data

The ANPP log files are binary data and are therefore not in a human-readable format. To convert the ANPP log files you can use the Log Converter function of Boreas Manager, see section Log Converter. This will create CSV and KML files for your analysis.

All the ANPP packets are described in detail in Advanced Navigation Packet Protocol.

NMEA0183 log files are ASCII text and can be opened in any text editor.