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6546 Commits

Author SHA1 Message Date
priseborough
f2c506339a AP_NavEKF: Reduce time required to recover from GPS timeouts 
The time required for GPS to be lost or rejected before vehicles with airspeed sensors either reset to GPS or invoke the zero side-slip assumption to constrain drift has been reduced from 15 to 10 seconds
A duplicate zeroing of the GPS position offset has been removed
If the vehicle is a non hovering vehicle (eg a plane) then the speed at which the GPS offset is pulled back to zero after a reset is increased from 1 to 3  m/s

This also improves recovery from bad inertial data for planes
 2014-12-18 21:50:40 +11:00
priseborough
f73816dbb5 AP_NavEKF: Improve robustness to long periods without GPS 2014-12-18 21:07:45 +11:00
Randy Mackay
a44b4b5e87 Mission: allow 15 do-jump commands on Pixhawk 2014-12-18 17:02:48 +09:00
priseborough
3afde0061f AP_NavEKF: Use named states for velocity reset 
Readibility improvement
 2014-12-18 17:29:50 +11:00
priseborough
f6ce25df2a AP_NavEKF: Do not reset vertical velocity state from GPS 
Doing this can cause large height and height rate errors if large GPS velocity errors cause the GPS tn be rejected for long enough to cause a timeout and reset of states.
 2014-12-18 17:29:47 +11:00
Andrew Tridgell
597273cfff AP_TECS: remove lag from height demand in landing 
this predicts ahead the height demand for landing, where we have a
continuous demanded descent. This removes the effect of the lag
introduced by the height demand filters
 2014-12-18 09:58:12 +11:00
Andrew Tridgell
b5a5b71512 GCS_MAVLink: reverse sense of check_and_forward() 
also increase number of routes on larger systems and improved route
learning logic
 2014-12-17 10:32:28 +11:00
Andrew Tridgell
a967a682a4 GCS_MAVLink: added routing test sketch 2014-12-17 10:32:28 +11:00
Andrew Tridgell
7f817502c4 GCS_MAVLINK: implement new routing rules 
see description in coments
 2014-12-17 10:32:28 +11:00
Andrew Tridgell
70f5ec60e8 AP_TECS: added get_land_sinkrate() 2014-12-15 21:51:07 +11:00
Andrew Tridgell
8c1cab84c7 AP_SpdHgtControl: added get_land_sinkrate() 2014-12-15 21:51:07 +11:00
Randy Mackay
21beb26484 Notify: minor event reordering 
No functional change
 2014-12-15 14:10:26 +09:00
Randy Mackay
e68a69e139 ToneAlarm_PX4: remove user_mode_init flag 
Replaced by an initialised check in the main ArduCopter flight code
 2014-12-15 14:10:21 +09:00
Randy Mackay
1c8ab375e2 Notify: rename failsafe_action event 2014-12-15 14:10:15 +09:00
Randy Mackay
972c8e47d2 Notify: rename notify_types to notify_flags_type 2014-12-15 14:10:10 +09:00
Randy Mackay
bfc86ac7c0 ToneAlarm_PX4: add comments 2014-12-15 14:10:06 +09:00
Randy Mackay
c75ab8f3e5 Notify: add comments re events 2014-12-15 14:09:15 +09:00
Jonathan Challinger
3dfcdde6be AP_Notify: Rework ToneAlarm_PX4 to play tones from local array 2014-12-15 14:09:04 +09:00
priseborough
e2d47f836e AP_TECS: Fix bug causing plane to fly high on landing approach 
The introduction of the height rate flare logic caused the demanded height rate to be zero except when a flare manouevre was being performed. This caused the plane to lag behind height changes if the D gain was non-zero, which caused it to fly high during landing approach.
 2014-12-14 09:43:46 +11:00
Randy Mackay
b54b7b7448 GCS_MAVLink: fix compiler error 2014-12-11 16:26:26 +09:00
Randy Mackay
e581e81da5 AP_NavEKF: reorder declation to fix compiler warning 
No functional change
 2014-12-11 15:37:56 +09:00
Randy Mackay
ddda0d52ce Baro: reorder declaration to fix compiler warning 
No functional change
 2014-12-11 13:06:24 +09:00
Andrew Tridgell
ade7f9e1a9 GCS_MAVLink: fixed forwarding of non-targetted messages 2014-12-11 12:32:50 +09:00
Andrew Tridgell
fcf17829cc GCS_MAVLink: fixed addition to routing table 2014-12-11 12:32:48 +09:00
Andrew Tridgell
079158d4b8 GCS_MAVLink: strip out the old GCS_Class class 
this is not longer needed as we don't support multiple protocol
classes
 2014-12-11 12:32:45 +09:00
Andrew Tridgell
f198cdcf20 GCS_MAVLink: added support for a MAVLink snoop function 
this can be used to watch messages for different targets
 2014-12-11 12:32:32 +09:00
Andrew Tridgell
34be7f808e GCS_MAVLink: only try to fwd packets to active channels 2014-12-11 12:32:30 +09:00
Andrew Tridgell
411766f45a AP_Mount: removed use of mavlink_check_target() 2014-12-11 12:32:27 +09:00
Andrew Tridgell
4a9331c505 AP_Camera: removed use of mavlink_check_target() 2014-12-11 12:32:24 +09:00
Andrew Tridgell
f1edd1bafb GCS_MAVLink: removed use of mavlink_check_target() 
not needed now we do routing properly, as messages will only be
processed if they are for us
 2014-12-11 12:31:06 +09:00
Andrew Tridgell
aa88ba4158 GCS_MAVLink: only call message handler for our own messages 2014-12-11 12:30:59 +09:00
Andrew Tridgell
11f88f0f5d GCS_MAVLink: added routing object to GCS_MAVLink 2014-12-11 12:30:55 +09:00
Andrew Tridgell
b91529622b GCS_MAVLink: initial implementation of MAVLink routing object 
will be used to auto-route packets over all available links
 2014-12-11 12:30:50 +09:00
Andrew Tridgell
76c710f596 GCS_MAVLink: removed obsolete headers 2014-12-11 12:30:46 +09:00
Andrew Tridgell
3354cb37d0 AP_GPS: fixed vertical velocity in Replay 
fixed NavEKF use of velocity velocity
 2014-12-09 18:57:17 +11:00
Andrew Tridgell
4a91546ced HAL_PX4: FRAM does not support fsync 
the fsync just wastes time reopening /fs/mtd
 2014-12-09 14:35:36 +11:00
Randy Mackay
da247bacf8 GCS_MAVLink: add OPTICAL_FLOW to ap_message enum 2014-12-08 14:58:30 +09:00
Randy Mackay
3c23f00e81 OptFlow: remove ADNS3080 image grabber example 2014-12-08 14:58:24 +09:00
Andrew Tridgell
193bda068c HAL_Linux: run IO processes when we do a stop_clock() 
this has the effect of allowing logging to progress in Replay where we
are running at much more than realtime speeds
 2014-12-08 11:24:39 +11:00
Andrew Tridgell
cb9c518ab8 Revert "AP_NavEKF : Reduce ripple in estimates that can cause copter motor 'pulsing'" 
This reverts commit 13df6fb1c9.

This patch was a result of an incorrect merge of the optflow branch
into master. It reintroduced the bug fixed by this commit:

  AP_NavEKF : Fix bug in reset of GPS glitch offset
  8aa267f75f
 2014-12-08 07:53:47 +11:00
Andrew Tridgell
22a7b69260 AP_OpticalFlow: don't build optical flow example 
broken by library changes
 2014-12-06 22:05:42 +11:00
Andrew Tridgell
ed510d4f87 AP_OpticalFlow: run PX4 flow sensor at 10Hz 
Pair-Programmed-With: Paul Riseborough <p_riseborough@live.com.au>
 2014-12-06 18:16:51 +11:00
priseborough
a2bd3b4a42 AP_NavEKF: Add public method returning height above ground level 2014-12-06 18:16:51 +11:00
priseborough
d701cfcb75 AP_NavEKF: Output terrain relative PosD when relying on Optical Flow 2014-12-06 18:16:51 +11:00
priseborough
0156d846f1 AP_NavEKF: Increase height at which nav gain reduction starts 
Compensates for optical flow induced noise increase with height.
 2014-12-06 18:16:51 +11:00
priseborough
12ea1d6e85 AC_AttitudeControl: Scale angle demand noise filter 
Scales filter frequency using EKF nav gain scaler to take advantage of the reduced nav frequency whichcan tolerate a slower angle response.
This is required to reduce the effect of EKF optical flow noise increase with height.
 2014-12-06 18:16:51 +11:00
priseborough
a905432ffe AP_NavEKF: reduce height at which nav gain reduction starts 2014-12-06 18:16:51 +11:00
priseborough
5785272933 AP_NavEKF: Improve robustness to corrupted flow sensor data 2014-12-06 18:16:51 +11:00
priseborough
b1d44d4dde AP_NavEKF: Add protection for negative height above ground 2014-12-06 18:16:50 +11:00
priseborough
e80b1c67cd AC_AttitudeControl: Add EKF optical flow noise gain scaler 
Allows gains to be adjusted to compensate for optical flow noise
 2014-12-06 18:16:50 +11:00
priseborough
11fb51ceba AC_WPNav: Add nav velocity gain scaler to interfaces 
Allows gains to be adjusted to compensate for optical flow noise
 2014-12-06 18:16:50 +11:00
priseborough
5b8265ad6f AP_AHRS: Expand EKF speed limit public method to handle control limits 2014-12-06 18:16:50 +11:00
priseborough
d994da0886 AP_NavEKF: Expand EKF speed limit public method to handle control limits 2014-12-06 18:16:50 +11:00
priseborough
5fa0c59310 AC_WPNav: Add EKF ground speed limit to loiter speed control 
This is required to prevent the speed controller saturating the optical flow sensor during low altitude flying.
 2014-12-06 18:16:50 +11:00
priseborough
83775554ea AP_AHRS: Publish EKF ground speed limit 2014-12-06 18:16:50 +11:00
priseborough
bc2255d6b1 AP_NavEKF: Improve comments in setInhibitGPS public method 2014-12-06 18:16:50 +11:00
priseborough
416eaf4633 AP_NavEKF: Apply single definition of using optical flow 2014-12-06 18:16:50 +11:00
priseborough
b56b68ce10 AP_NavEKF: Add public method reporting horizontal speed limit 
This is required if using optical flow, as depending on height, the speed must be limited to prevent the sensor saturating
 2014-12-06 18:16:50 +11:00
priseborough
c8fb376cc4 AP_NavEKF: Fix bug in bias rate of change limiting 
This doesn't change the behaviour, but means the result is achieved using the correct parameters, and comments are consistent
 2014-12-06 18:16:50 +11:00
priseborough
599e53f3f2 AP_NavEKF: Prevent flow scale factor updating on ground 2014-12-06 18:16:49 +11:00
priseborough
083e22966c AP_NavEKF: Add public method to report available output data 2014-12-06 18:16:49 +11:00
priseborough
5532750a99 AP_AHRS: Add public method to inhibit GPS useage when using EKF 
This provides the calling vehicle software the abiity to request the EKF to not use GPS.
An integer is returned that indicates the type of operation available:
0 = request rejected (request will only be accepted if the EKF is in static mode, eg pre-armed)
1 = request accepted, attitude, vertical velocity and position estimates available
2 = request accepted, attitude, height rate, height, horizontal velocity and relative position estimates available
 2014-12-06 18:16:49 +11:00
priseborough
e53d28854e AP_NavEKF: Add public method to inhibit GPS use and clean-up GPS use logic 
This provides the calling vehicle software the abiity to request the EKF to not use GPS.
An integer is returned that indicates the type of operation available:
0 = request rejected (request will only be accepted if the EKF is in static mode, eg pre-armed)
1 = request accepted, attitude, vertical velocity and position estimates available
2 = request accepted, attitude, height rate, height, horizontal velocity and relative position estimates available
 2014-12-06 18:16:49 +11:00
priseborough
8fb1d9cf8d AP_NavEKF: Fix bug preventing opt flow scale factor estimation 
Also removes un-used variable declarations
 2014-12-06 18:16:49 +11:00
priseborough
a78920761c AP_NavEKF: Update comments in flow data interface 2014-12-06 18:16:49 +11:00
priseborough
063fb41748 AP_OpticalFlow: Add separate scale factors for X and Y axis. 
The resolution is also increased to take advantage of the planned introduction of automated calibration methods
 2014-12-06 18:16:49 +11:00
priseborough
52c7e56a4a AP_NavEKF: Add parameter for max valid optical flow rate magnitude 2014-12-06 18:16:49 +11:00
priseborough
6f8971d80a AP_NavEKF: Speed up flow sensor gyro bias correction 2014-12-06 18:16:49 +11:00
priseborough
d7ad45ebda AP_NavEKF: Don't fuse flow measurements if too big 2014-12-06 18:16:49 +11:00
priseborough
2dff76394d AC_PosControl: Add spike and noise filter to demanded angles 
This has been done to provide a smooth psotion hold when using an optical flow aided EKF which can be noisy.

Signed-off-by: priseborough <p_riseborough@live.com.au>
 2014-12-06 18:16:49 +11:00
priseborough
84944fdd4e AP_NAvEKF: Revert back to 10Hz fusion 2014-12-06 18:16:49 +11:00
priseborough
f4f0dfc45c AP_OpticalFlow: efficiency improvements to data processing 2014-12-06 18:16:49 +11:00
priseborough
1f78a73cdb AP_NavEKF: Make flow measurement delay vehicle specific 
This takes into account the inter-sampling delay between the flow driver and the APM software which depends on the rate at which the dirver is being checked. This is 50Hz for plane and rover, and 200Hz for Copter.
 2014-12-06 18:16:49 +11:00
priseborough
5f941655a8 AP_NavEKF: changes to support to 20Hz flow fusion rate 2014-12-06 18:16:48 +11:00
priseborough
0bf991eef9 AP_NavEKF: Fix bug in optical flow fusion smoothing 2014-12-06 18:16:48 +11:00
priseborough
7d27a22f77 DataFlash : Fix EKF optical flow logging bug 2014-12-06 18:16:48 +11:00
priseborough
7ec8dfebcf AP_OpticalFlow : Remove gyro scale factor user adjustable parameter 
No longer required because bug in flow sensor has been fixed.
 2014-12-06 18:16:48 +11:00
priseborough
2baa1e56ed Dataflash : Fix bug in EKF opt flow logging 2014-12-06 18:16:48 +11:00
priseborough
df59f3311a AP_OpticalFlow : Add gyro scale factor correction parameter 2014-12-06 18:16:48 +11:00
priseborough
eec49ce1dd AP_OpticalFlow : Add parameter for flow rate scale factor correction 2014-12-06 18:16:48 +11:00
priseborough
839b814d12 AP_NavEKF : Inhibit flow and range fusion in static mode 2014-12-06 18:16:47 +11:00
priseborough
9b9934ac06 AP_NavEKF : fix velocity timeout bug during optical flow operation 2014-12-06 18:16:47 +11:00
priseborough
cc8e6dbfad DataFlash : Add EKF additional fault and timeout logging 2014-12-06 18:16:47 +11:00
priseborough
517026980b AP_NavEKF : Add fault and timeout logging 2014-12-06 18:16:47 +11:00
priseborough
f640ec30ff AP_NavEKF : Reset held velocity on arming 
This held velocity is used to constrain the drift in the optical flow solution before the vehicle is high enough for the optical flow sensor to work.
 2014-12-06 18:16:47 +11:00
priseborough
4616721b0d DataFlash : Update EKF debug logging 2014-12-06 18:16:47 +11:00
priseborough
06c19a3a4d AP_NavEKF : Update optical flow debug logging 2014-12-06 18:16:47 +11:00
priseborough
1791dec622 AP_NavEKF : Fix velocity hold mode 2014-12-06 18:16:47 +11:00
priseborough
84421e0a35 AP_NavEKF : Adjust initial flow scale factor and limits 2014-12-06 18:16:47 +11:00
priseborough
573633daf7 AP_NavEKF : Fix incorrect use of flow sensor time-stamp 
flow sensor time stamp is now issued by the flow sensor and is on a different time-base
 2014-12-06 18:16:47 +11:00
priseborough
92e9336fe1 AP_OpticalFlow : prevent divide by zero 2014-12-06 18:16:47 +11:00
priseborough
9ea97c1a38 AP_NavEKF : Modify optical flow data interface 
Sign conventions have changed
 2014-12-06 18:16:46 +11:00
priseborough
8faeb190de AP_NavEKF : Rework logic to cope with bad flow data 2014-12-06 18:16:46 +11:00
priseborough
44e1695d5a AP_AHRS : Enable EKF start without GPS 2014-12-06 18:16:46 +11:00
priseborough
41f0231cfb AP_NavEKF : improve logic dealing with lack of flow or range data 2014-12-06 18:16:46 +11:00
priseborough
9ba46ad795 AP_NavEKF : Improve handling of flow sensor failure 2014-12-06 18:16:46 +11:00
priseborough
2ee1c549be AP_NavEKF : improve criteria used to inhibit scale factor estimation 2014-12-06 18:16:46 +11:00
priseborough
e09ff84218 AP_NavEKF : Don't estimate focal length scale factor without reliable velocity 2014-12-06 18:16:46 +11:00
priseborough
4c92a5f23f AP_NavEKF : Use GPS velocity if PX4Flow sensor fails 2014-12-06 18:16:46 +11:00
priseborough
283811edcb AP_NavEKF : stop velocity change when flow measurements drop out 2014-12-06 18:16:46 +11:00