Add common functions, implemented for nuttx, and link to architecture specific libraries
Make a separate library to wrap nuttx random number generator as "os_random".
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
By adding the sequence number we can avoid double triggering due to
command retransmissions. This is according to the mavlink spec for
MAV_CMD_IMAGE_START_CAPTURE.
VTOL planes are getting lift from the wing when flying in MC mode at
high speed. They (and some other drones) also get extra drag when
climbing and descending at high speed, corrupting the hover thrust
estimate.
To avoid this, two speed thresholds (vertical and horizontal) are defined
above which the sensitivity of the estimator is decreased by linearly
increasing the observation noise.
Using mixers on the IO side had a remote benefit of being able to
override all control surfaces with a radio remote on a fixed wing.
This ended up not being used that much and since the original design
10 years ago (2011) we have been able to convince ourselves that the
overall system stability is at a level where this marginal benefit,
which is not present on multicopters, is not worth the hazzle.
Co-authored-by: Beat Küng <beat-kueng@gmx.net>
Co-authored-by: Daniel Agar <daniel@agar.ca>
- sitl_gazebo in PX4/Firmware (e800e7c27663ae0a08ae1e377cbccd2272657ad0): 53d606b32f
- sitl_gazebo current upstream: d8366bf238
- Changes: 53d606b32f...d8366bf238
d8366bf 2021-09-19 Mohamed ElDewany - Fix gazebo plugin for laser sensor
37a3a64 2021-09-16 Julian Oes - camera: fix stream URI
2561ff0 2021-09-01 Julian Oes - mavlink_interface: enable HITL over UDP
9216dab 2021-09-01 Julian Oes - mavlink_interface: remove poll before writing
8e9eb3f 2021-09-01 Julian Oes - mavlink_interface: clean up switch case
a009174 2021-09-01 Julian Oes - mavlink_interface: use flag from mavlink_interface
6f1243a 2021-09-01 Julian Oes - mavlink_interface: remove redundant inline keyword
Currently only for the Z axis. If the current downward velocity is more
than twice the maximum allowed value, the emergency braking mode is
activated. In this mode, a higher vertical acceleration and jerk is used
until the vehicle stops moving.
* fix disable airspeed check with negative ASPD_FS_INTEG
* improve logic when nav velocity data is not good
* simplify logic. Reset integrator state when the check is not run.
Jukka Laitinen
Julian Oes
Daniel Agar
PX4 BuildBot
bresch
achim
Beat Küng
David Sidrane
Igor Mišić
Hamish Willee
Thomas Debrunner
Matthias Grob
Thomas Stauber
Claudio Micheli
David Jablonski