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145 Commits

Author SHA1 Message Date
Andrew Tridgell 9db618c73c AP_AHRS: disable EKF1 for plane 
we are running too close to the 1MByte limit for pixhawk. This
recovers nearly 100kbyte of flash
 2016-04-04 11:08:03 +10:00
Andrew Tridgell d0b67ce007 AP_AHRS: allow for EKF without GPS on plane in VTOL modes 
this allows for testing quadplanes indoors
 2016-03-05 08:58:08 +11:00
Jonathan Challinger cbf2309023 AP_AHRS: add get_mag_field_NED and get_mag_field_correction 2016-01-23 10:35:36 +09:00
Randy Mackay f6b909d0a5 AHRS_NavEKF: resolve compiler warning re signed vs unsigned comparison 2016-01-07 12:31:47 +09:00
Andrew Tridgell f8b52c6a67 AP_AHRS: try to start EKF2 slightly before EKF2 
this gives priority to EKF2 on memory
 2016-01-07 08:34:32 +11:00
Jonathan Challinger a2999ece54 AP_AHRS_NavEKF: add setTakeoffExpected, setTouchdownExpected 2015-12-28 13:51:24 +09:00
Jonathan Challinger 6682b27456 AP_AHRS: rename get_dcm_matrix to get_rotation_body_to_ned 2015-12-18 18:08:37 +11:00
Andrew Tridgell 1e8c391024 AP_AHRS: fixed float exception on start in SITL 
zero DCM matrix
 2015-12-01 15:19:45 +11:00
Andrew Tridgell b3e6129fd4 AP_AHRS: added EKF type 10 for SITL 
this bypasses all attitude and position estimators and uses the SITL
state directly. It can be used for when the SITL backend cannot
provide perfect sensor data
 2015-11-22 17:30:28 +11:00
Andrew Tridgell 7b38f2185f AP_AHRS: use the right DCM matrix for right EKF 
this fixes a bug where the EKF2 DCM matrix would be used for
get_dcm_matrix() when EKF1 was active
 2015-11-20 18:34:08 +11:00
Caio Marcelo de Oliveira Filho 4ea45b8df1 AP_AHRS_NavEKF: use millis/micros/panic functions 2015-11-20 12:28:53 +09:00
Paul Riseborough 803817821d AP_AHRS: Support changes to EKF2 interfaces that specify the instance 
An instance of -1 is specified which causes data for the primary instance to be returned.
 2015-11-08 15:37:28 +11:00
Paul Riseborough 7ed36d8e65 AP_AHRS: Enable pre-flight GPS check status reporting for EKF2 2015-11-02 14:12:17 +11:00
Randy Mackay 4e959ef6f9 AP_AHRS: constify getLastPosNorthEastReset 
Also constify getLastVelNortEastReset
 2015-10-30 12:24:13 +09:00
Randy Mackay 7c20577ee0 AP_AHRS: constify getLastYawResetAngle 2015-10-30 12:24:10 +09:00
Paul Riseborough f67f6b01f4 AP_AHRS: Publish the EKF position and velocity reset deltas 2015-10-30 12:24:05 +09:00
Caio Marcelo de Oliveira Filho 9d2e3157fe AP_AHRS: add a runtime flag for always using EKF 
The AHRS_EKF_USE_ALWAYS define is used to force EKF to be always
used. It is defined only for building ArduCopter. Change it to be a
runtime flag. Keep its default value still based on the original define,
once the Copter uses it the define will be removed.

The motivation is to move vehicle specifc code out of the general
libraries. This patch shouldn't change behavior.
 2015-10-21 11:01:10 +11:00
Andrew Tridgell eac91430a2 AP_AHRS: update _dcm_attitude() on reset() 
this prevents the roll/pitch being overwritten by the AHRS_NavEKF
update code on next update
 2015-10-21 08:58:30 +11:00
Paul Riseborough 0722ebe8a0 AP_AHRS: Add EKF variance checks 2015-10-20 15:21:38 +11:00
Paul Riseborough ae830b44c4 AP_AHRS: Make EKF2 PosDownDerivative interface follow coding conventions 
Updates arising from peer review.
 2015-10-20 15:21:37 +11:00
Paul Riseborough e8037f94ad AP_AHRS: Make EKF2 PosDownDerivative interface follow coding conventions 
Updates arising from peer review
 2015-10-20 15:21:37 +11:00
Paul Riseborough 58d57994f4 AP_AHRS: Rectify coding errors found during peer review 
Fixes code that didn't take into account fall-through behaviour of C++ switch statements
Makes get_rigin furnction more generic allowing the consumer to decide what to do with an invalid origin
 2015-10-20 15:21:36 +11:00
Paul Riseborough e65ae51564 AP_AHRS: Enable AP_InertialNav to access all EKF functions via AP_AHRS 
This patch adds additional methods to the the AHRS library so that the AP_InertialNav library dow nto have to access the EKF directly. This enables Copter to fly using the EKF nominated by AHRS_EKF_TYPE.
It will also pave the way to elimination of the AP_InertialNav library.
 2015-10-20 15:21:36 +11:00
Andrew Tridgell 232fc8a64d AP_AHRS: added send_ekf_status_report() 2015-09-29 10:58:54 +10:00
Randy Mackay 9f59b6f7b5 AP_AHRS: getLastYawResetAngle returns reset time 2015-09-24 16:57:41 +09:00
Paul Riseborough f77bdd90fc AP_AHRS: Update EKF2 data logging 2015-09-24 12:58:44 +10:00
Andrew Tridgell dde8330077 AP_AHRS: rename using_EKF to active_EKF_type() 
thanks to Randy for the suggestion
 2015-09-23 17:53:44 +10:00
Andrew Tridgell f9348887c5 AP_AHRS: added getLastYawResetAngle() and resetHeightDatum() 2015-09-23 17:46:51 +10:00
Andrew Tridgell 0677c2c80c AP_AHRS: run astyle for formatting 2015-09-23 17:31:00 +10:00
Andrew Tridgell 7ba45444a2 AP_AHRS: added selection of EKF type using AHRS_EKF_TYPE 2015-09-23 11:57:18 +10:00
Andrew Tridgell c18c6d894e AP_AHRS: added prearm_failure_reason() 2015-09-08 15:50:22 +10:00
Randy Mackay a7569e3a61 AHRS_NavEKF: integrate INS use_accel 2015-08-19 16:44:22 +09:00
Gustavo Jose de Sousa 54d5277842 AP_AHRS: standardize inclusion of libaries headers 
This commit changes the way libraries headers are included in source files:

 - If the header is in the same directory the source belongs to, so the
 notation '#include ""' is used with the path relative to the directory
 containing the source.

 - If the header is outside the directory containing the source, then we use
 the notation '#include <>' with the path relative to libraries folder.

Some of the advantages of such approach:

 - Only one search path for libraries headers.

 - OSs like Windows may have a better lookup time.
 2015-08-11 16:28:42 +10:00
Randy Mackay 9067abc037 AHRS_NavEKF: fix blended accel to use primary accel 2015-08-01 17:19:45 +09:00
Andrew Tridgell 5514a9f690 AP_NavEKF: base EKF decisions on vehicle class 
using the vehicle class rather than the build macros allows this to
work correctly in replay
 2015-05-19 15:21:22 +10:00
Andrew Tridgell 92daa15ccc AP_AHRS: on plane and rover make AHRS unhealthy when EKF not initialised 
planes and rovers need full absolute position from the EKF if the EKF
is going to be used. We don't want users to arm without full
capabilities
 2015-05-19 15:21:21 +10:00
Andrew Tridgell 29f0561ce4 AP_AHRS: reject EKF for plane when we have GPS and aren't fusing 
plane users would prefer to use GPS in this case
 2015-05-17 21:24:57 +10:00
Paul Riseborough c2ac80cc63 AP_AHRS: Prevent copter from switching to DCM unless EKF has severe errors 2015-05-13 16:11:13 +09:00
Andrew Tridgell 3529e02675 AP_AHRS: if we have 3 gyros then only use first two 
the 3rd gyro on a PH2 has a lot more noise as it is not vibration
isolated
 2015-05-09 21:00:49 +10:00
Paul Riseborough 7f1749dc1c AP_AHRS: Allow EKF to pull data from range finder object 2015-04-24 10:56:58 +09:00
Paul Riseborough 405862bd8f AP_AHRS: Reduce time delay for EKF initialisation 2015-04-23 20:35:52 +09:00
Randy Mackay c6f71ea2e0 AHRS: make get_error_rp and get_error_yaw const 2015-04-21 22:42:17 +09:00
Andrew Tridgell d7249cc1e6 AP_AHRS: only use EKF for plane and rover if all data available 
we need position and velocity to be working for plane and rover
 2015-04-14 09:57:45 +10:00
Paul Riseborough ff9917d338 AP_AHRS: Fix bug preventing EKF from initialising 2015-04-10 11:07:42 +09:00
Jonathan Challinger dc5bdd5ad8 AP_AHRS: use filtered INS output to compute _accel_ef_blended 2015-04-09 20:19:56 +09:00
Paul Riseborough d44cf14178 AP_AHRS : Publish EKF learned compass offsets 2015-04-03 15:24:47 -07:00
Andrew Tridgell 8ba043e593 AP_AHRS: fixed EKF startup bug 
This fixes the EKF for when GPS lock takes more than 10 seconds

fixes issue #2010
 2015-03-28 10:52:22 -07:00
Randy Mackay 98efcd5f03 AHRS: always use EKF for copter 2015-03-19 15:15:51 +09:00
Andrew Tridgell 6781a8d329 AP_AHRS: fixed get_position for EKF to use correct relative altitude 
we need to use the EKF relative height plus the current AHRS home
 2015-02-21 10:12:53 +11:00
Andrew Tridgell 68f64fa11c AP_AHRS: make the healthy() method const 2015-02-01 14:13:52 +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 83775554ea AP_AHRS: Publish EKF ground speed limit 2014-12-06 18:16:50 +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 44e1695d5a AP_AHRS : Enable EKF start without GPS 2014-12-06 18:16:46 +11:00
priseborough a4984a1e76 AP_AHRS : Add range finder health status to EKF optical flow data 2014-12-06 18:16:44 +11:00
priseborough 12b012a00e AP_AHRS : temporary mods to test use of flow sensor internal gyro data 2014-12-06 18:16:44 +11:00
priseborough 7b76fc29fb AP_AHRS : EKF optical flow fusion support preliminary changes 2014-12-06 18:16:44 +11:00
Jonathan Challinger 9261dfdefb AP_AHRS_NavEKF: overload get_accel_ef and get_accel_ef_blended functions 2014-12-05 19:40:08 +09:00
priseborough 2c07299c04 AP_AHRS : Add reset of EKF gyro bias states 2014-10-29 15:32:18 +09:00
Randy Mackay dffcfb42bc AHRS: add reset_gyro_drift method 2014-10-28 20:25:33 +09:00
Andrew Tridgell 270bac4472 AP_AHRS: make get_position() const 
This allows use from within AP_Mission
 2014-10-20 08:36:20 +11:00
Andrew Tridgell 4ad643b233 AP_AHRS: use a common function for updating the CD values 
this ensures the wrapping of yaw is consistent between the 3 use cases
 2014-10-15 13:18:08 +11:00
Andrew Tridgell eec5cd5add AP_AHRS: restore DCM attitude before update() 
The DCM drift correction code uses the current attitude to calculate
error values to update its gyro drift correction. If we were using EKF
then without this patch the DCM code running as an alternative AHRS
source would be using the EKF attitude for calculating the error
value, leading to very bad gyro drift estimation
 2014-10-15 11:15:33 +11:00
Randy Mackay 85eee31510 AHRS: rename ekfNotStarted method to initialised 
Also created default implementation in AP_AHRS class so AP_AHRS_DCM does
not need to implement it.
 2014-10-02 14:40:54 +09:00
priseborough 7cea7c6a18 AP_AHRS : add method to report if EKF is waiting to start 2014-10-02 14:38:29 +09:00
priseborough 7370e07c8d AP_AHRS : Prevent EKF starting if GPS sats less than AHRS_GPS_MINSATS 2014-10-01 12:55:29 +10:00
Andrew Tridgell e9a9e33280 AP_AHRS: use EKF use_compass() if EKF enabled 
this allows magfailed status to show on console via SYS_STATUS health
bits
 2014-08-24 21:00:56 +10:00
Andrew Tridgell 28fedba4d8 AP_AHRS: fixed gyro_bias sign, and pre-calculate gyro_estimate for EKF 
this allows us to return a constant vector for the corrected gyro
estimate. Based on discussions with Jon Challinger
 2014-07-13 21:56:39 +10:00
Jonathan Challinger 966d66ef40 AP_AHRS_NavEKF: use gyro drift states from EKF in get_gyro 2014-07-13 21:34:44 +10:00
Andrew Tridgell 1a05c27bbb AP_AHRS: added healthy() function 
this will be used to report when the AHRS subsystem becomes unhealthy
 2014-05-15 21:14:21 +10:00
Andrew Tridgell b7350118a6 AP_AHRS: enable EKF wind estimate with no airspeed sensor 
EKF can now estimate with IMU and GPS only

Pair-Programmed-With: Paul Riseborough <p_riseborough@live.com.au>
 2014-04-13 19:42:49 +10:00
Andrew Tridgell 27a3b5fb36 AP_AHRS: fixed wind reporting with EKF and no airspeed sensor 
the EKF does not estimate wind without an airspeed sensor
 2014-04-10 06:49:23 +10:00
Andrew Tridgell f07e4dee52 AP_AHRS: convert to new GPS API 2014-04-01 06:38:24 +11:00
Paul Riseborough 15a44571c2 AP_NavEKF : enable operation without a compass for planes 2014-03-09 20:01:45 +11:00
Jonathan Challinger f321a5f241 AP_AHRS: Change airspeed_estimate to const in children of AP_AHRS 
Allows roll/pitch controllers to use DCM's airspeed estimate. Thanks to Kevin Hester for assistance in finding this.
 2014-02-25 18:49:16 +11:00
Paul Riseborough 9f3c19c03a AP_AHRS : change initialisation requirements for EKF and use dynamic method 2014-02-23 19:50:34 +11:00
Andrew Tridgell fad0b2b233 AP_AHRS: added get_correct_centrifugal() 
used by NavEKF to force static mode
 2014-02-19 10:28:14 +11:00
Andrew Tridgell be33a9634e AP_AHRS: move using_EKF to .cpp to make it easier in gdb 2014-02-15 09:25:40 +11:00
Andrew Tridgell 801ceacaf2 AP_AHRS: re-run update_trig() after EKF AHRS update 2014-02-15 05:48:24 +11:00
Andrew Tridgell 25ef0d5a7b AP_AHRS: don't allow get_velocity_NED() and get_relative_position_NED() without EKF 
this avoids some linking issues, plus the functions are inaccurate
without EKF
 2014-02-15 05:48:24 +11:00
Paul Riseborough b4171853b1 AP_NavEKF: allow initialisation before GPS lock to aid indoor testing 2014-02-15 05:48:21 +11:00
Paul Riseborough 0599817aa9 AP_AHRS : EKF initialisation changed to use bootstrap method 2014-02-15 05:48:21 +11:00
Randy Mackay 9f130b40a0 AP_AHRS_NavEKF: override set_correct_centrifugal 2014-02-15 05:48:20 +11:00
Paul Riseborough a87df0ad56 AP_AHRS : set NavEKF staticMode using call to set_correct_centrigual 2014-02-15 05:48:20 +11:00
Paul Riseborough ab08a5c7d6 AP_AHRS : altered NavEKF set home to reset position instead of reset filter 2014-02-15 05:48:18 +11:00
Andrew Tridgell 574946f0aa AP_AHRS: start EKF 5 seconds after getting GPS lock 2014-02-15 05:48:17 +11:00
Andrew Tridgell df271fbd59 AP_AHRS: fill in _dcm_matrix whenever EKF started 
this ensures get_dcm_matrix() always returns valid data
 2014-02-15 05:48:17 +11:00
Andrew Tridgell ada7d4fb98 AP_AHRS: use the right DCM matrix when EKF not enabled 2014-02-15 05:48:17 +11:00
Andrew Tridgell 5d43a1d704 AP_AHRS: added inertial nav interfaces to AHRS 2014-02-15 05:48:16 +11:00
Andrew Tridgell 392995ef84 AP_AHRS: make AHRS handle altitude 
AHRS now holds the home position
 2014-02-15 05:29:47 +11:00
Andrew Tridgell 84c7b0d7fd AP_AHRS: check for NavEKF health 2014-02-15 05:29:46 +11:00
Andrew Tridgell b39a5062e9 AP_AHRS: use NavEKF for ground vector when available 2014-02-15 05:29:45 +11:00
Andrew Tridgell b6bc50051f AP_AHRS: allow reporting of secondary AHRS solution 2014-02-15 05:29:45 +11:00
Andrew Tridgell 8c5cde4efd AP_AHRS: allow NavEKF to be enabled at runtime with AHRS_EKF_USE=1 2014-02-15 05:28:10 +11:00
Andrew Tridgell 7ac78ff991 AP_AHRS: create AP_AHRS_NavEKF class 
subclass of AP_AHRS_DCM, just a wrapper for now, will add EKF calls
next
 2014-02-15 05:28:09 +11:00