The command is sent by a dedicated mavlink command and forwarded to the fixed wing position controller.
The pattern is defined by the radius of the major axis, the radius of the minor axis and the orientation. The pattern is then defined by:
The upper part of the pattern consist of a clockwise circle with radius defined by the minor axis. The center of the circle is defined by the major axis minus the minor axis away from the pattern center.
The lower part of the pattern consist of a counter-clockwise circle with the same definitions as above.
In between, the circles are connected with straight lines in a cross configuration. The lines are always tangetial to the circles.
The orientation rotates the major axis around the NED down axis.
The loitering logic is defined inside its own class used by the fixed wing position control module. It defines which segment (one of the circles or lines) is active and uses the path controller (npfg or l1-control) to determine the desired roll angle.
A feedback mavlink message is send with the executed pattern parameters.
This switches from the horribly intertwined ringbuffer implementation to
the new VariableLengthRingbuffer implementation.
By ditching the previous implementation, we fix MAVLink message
forwarding, which didn't work reliably. The reason it didn't work is
that multiple mavlink messages could be added but only one of them was
sent out because the buffer didn't keep track of the messages properly
and only read the first one.
Signed-off-by: Julian Oes <julian@oes.ch>
This prevents the mavlink transmit loop from waiting on the module mutex
thus not stopping transmissions when the mutex is already taken.
This can happen when calling `mavlink status` from the mavlink shell,
where `Mavlink::get_status_all_instances()` takes the mutex and then
prints the status via pipes to the mavlink transmit buffer.
If that pipe cannot be emptied a deadlock happens.
Since the MavlinkReceiver thread also waits on the module mutex, both
reception and transmission of Mavlink packets are then prevented thus
disabling communications entirely.
When the yaw estimate is converging, the controller makes the drone yaw
in order to follow the current setpoint. This is unintuitive for the
pilot and it is preferable if the drone continues to fly towards the
same physical direction.
If the measured voltage is more than 65v we need to split the voltage
over multiple cells in order to avoid overflowing the uint16. This is
according to the MAVLink spec.
Signed-off-by: Julian Oes <julian@oes.ch>
The extension fields need to be 0 by default according to the MAVLink
spec. This is because extensions are 0 by default and need to be 0 when
unknown/unused for backwards compatibility.
The patch also simplifies the flow slightly in that it doesn't create a
temporary array but just fills in the cell voltages directly.
Signed-off-by: Julian Oes <julian@oes.ch>
- Enable arbitrary euler angle for Mag rotation
- new CUSTOM rotation enum out of the normal enum range
- mag_rot: automatically change to custom if euler rot is set
- sensor_calibration: Magnetometer save custom rotation parameters
- mag_cal: cross mention rotation parameters
- This allows the user to see the RPY options when searching for the rotation parameter
---------
Co-authored-by: Junwoo Hwang <junwoo@auterion.com>
Co-authored-by: bresch <[brescianimathieu@gmail.com](mailto:brescianimathieu@gmail.com)>
Co-authored-by: Daniel Agar <daniel@agar.ca>
In the mavlink_receiver code, after a while it will try to resend some
parameter update through the MAVLink instance. But for Iridium links
those are not a good idea. So this adds a condition that prevent the
sending if the MAVLink instance is in Iridium mode.
Related to issue #21496
- simplify vehicle_status.arming_state down to just armed and disarmed
- ARMING_STATE_INIT doesn't matter
- ARMING_STATE_STANDBY is effectively pre_flight_checks_pass
- ARMING_STATE_STANDBY_ERROR not needed
- ARMING_STATE_SHUTDOWN effectively not used (all the poweroff/shutdown calls loop forever in place)
- ARMING_STATE_IN_AIR_RESTORE doesn't exist anymore
- collapse ArmStateMachine into commander
- all requests already go through Commander::arm() and Commander::dismarm()
- other minor changes
- VEHICLE_CMD_DO_FLIGHTTERMINATION undocumented (unused?) test command (param1 > 1.5f) removed
- switching to NAVIGATION_STATE_TERMINATION triggers parachute command centrally (only if armed)
---------
Co-authored-by: Matthias Grob <maetugr@gmail.com>
If at the last powercycle one mission was uploaded, the counter in dataman was 1. On the next powercycle the mavlink mission counter was reset to zero and on first mission upload updated to 1 again. Other modules check, if the mission was changed based on the counter, like the mission.cpp loaded the mission counter from the dataman. On a new mission, the comparison of the counters failed, because both were the same value even if the mission was completely different.
It turns out that I had omitted implementing the gimbal_device_id which
is the component ID of the gimbal device that the gimbal manager (in
this case PX4) is responsible for.
Signed-off-by: Julian Oes <julian@oes.ch>
- mavlink in PX4/Firmware (73104cab2e49118903cf32bdf11f6ea917fa394e): 2bdcab78b5
- mavlink current upstream: e1e68da5e6
- Changes: 2bdcab78b5...e1e68da5e6
e1e68da5 2023-03-08 Hamish Willee - Add quickstart to the README (#1960)
9b92bf2e 2023-03-08 Hamish Willee - Fix enum value for payload battery (#1959)
81e9fcd5 2023-03-08 Hamish Willee - Allocate range for ras-a and indicate next free range (#1957)
abbda253 2023-03-02 Hamish Willee - Indicate preference for COMMAND_INT (#1955)
d3a8e4b8 2023-02-08 Julian Oes - development: add command to configure SiK radio
