How to split log/bin files, in-flight/on-command?

erikbaas · November 24, 2022, 5:11pm

I am planning on grouping my flight into sections. To make logfile analysis easier, I would like to end- and create a new logfile on command. Currently, the only way I know of is to power off- and on the battery, but I cannot do this in mid-air of course.

Does anyone know of a command to split logs as I would like to?

Kind regards,

Erik

Mustafa_Gokce · November 24, 2022, 6:42pm

Take a look at mavlogdump.py

github.com

ArduPilot/pymavlink/blob/master/tools/mavlogdump.py

#!/usr/bin/env python

'''
example program that dumps a Mavlink log file. The log file is
assumed to be in the format that qgroundcontrol uses, which consists
of a series of MAVLink packets, each with a 64 bit timestamp
header. The timestamp is in microseconds since 1970 (unix epoch)
'''
from __future__ import print_function

import array
import fnmatch
import json
import os
import struct
import sys
import time

# Detect python version
if sys.version_info[0] < 3:

This file has been truncated. show original

There are also some posts on the forum about it.
I dont think it is necessary though since all the logs are time stamped.

BrunoBagarini · November 25, 2022, 9:34pm

If this is useful for you, there is a parameter that creates a new log file for each flight, so this way you don’t need to plug/unplug your battery everytime:
https://ardupilot.org/copter/docs/parameters-Copter-stable-V4.0.8.html#log-file-dsrmrot-stop-logging-to-current-file-on-disarm

I think it is this one above.

Also, upgrade to the latest 4.3 stable if possible, it has many improvements over the 4.0 version.

amilcarlucas · January 22, 2024, 8:23pm

See How to trim down a log file? - #11 by amilcarlucas for an example