Commit Graph

172 Commits

Author SHA1 Message Date
Andrew Tridgell ab05472e0e AP_AHRS: added EKF3 for EKF experimentation
Conflicts:
	libraries/AP_AHRS/AP_AHRS_NavEKF.cpp
2016-12-18 10:28:04 +11:00
Randy Mackay c615bac1cd AP_AHRS: add getLastPosDownReset accessor 2016-11-24 19:57:53 +09:00
Andrew Tridgell 772209b3f3 AP_AHRS: make posOffset a const reference 2016-10-27 15:45:24 +11:00
priseborough 6069c37b19 AP_AHRS: add position offset to optical flow interface 2016-10-27 14:54:42 +11:00
Mathieu OTHACEHE 152edf7189 Global: remove mode line from headers
Using a global .dir-locals.el file is a better alternative than
reincluding the same emacs header in every file of the project.
2016-10-24 09:42:01 -02:00
Jonathan Challinger 25a14fe0dc AP_AHRS: add interface to retrieve corrected delta velocities in NED frame 2016-10-14 10:45:58 +09:00
Jonathan Challinger 5ff78b8e47 AP_AHRS: fix rotation of acceleration into earth frame 2016-10-13 10:02:13 +11:00
Andrew Tridgell 334db0a1a5 AP_AHRS: added get_primary_accel_index() and get_primary_gyro_index() 2016-09-05 12:56:36 +10:00
Andrew Tridgell c62fc336cb AP_AHRS: use current EKF2 IMU core in gyro estimate
The EKF2 implementation uses one IMU per EKF2 core. When reporting the
gyro estimate, accel_ef estimate and gyro bias estimate we need to use
the values associated with the current IMU index being used by the
current EKF2 core. Otherwise we will have an inconsistency between the
gyro estimate and attitude estimate

This affects all multi-IMU systems using EKF2
2016-09-05 12:54:53 +10:00
Andrew Tridgell bf1e0e1536 AP_AHRS: fixed EKF GPS arming check for fixed wing
when in a quadplane mode we set fly_forward to zero. We need to ensure
the GPS checks for EKF health are applied when doing arming checks, so
we use the checks always when disarmed
2016-09-02 11:12:19 +10:00
Peter Barker 78fa23440c AP_AHRS: remove use of uninitialised variable
clang told us:

../../libraries/AP_AHRS/AP_AHRS_NavEKF.cpp:695:35: fatal error: variable 'posD' is used uninitialized whenever '&&' condition is false [-Wsometimes-uninitialized]
2016-07-20 00:06:49 -03:00
priseborough 01ce3e7f1e AP_AHRS: fix documentation errors 2016-07-19 12:16:49 +10:00
priseborough 5454f76702 AP_AHRS: Add separate interfaces for local horizontal and vertical position 2016-07-19 12:16:49 +10:00
Andrew Tridgell e82468a529 AP_AHRS: avoid ifdef for AP_MODULE_SUPPORTED 2016-07-14 13:39:47 +10:00
Andrew Tridgell 36181b78de AP_AHRS: fixed build for px4 2016-07-14 13:39:46 +10:00
Andrew Tridgell 15a01eefb1 AP_AHRS: added AHRS_update hook 2016-07-14 13:39:46 +10:00
Andrew Tridgell 2db2486b3a AP_AHRS: send zero EKF_STATUS_REPORT with EKF type 10 2016-06-19 22:02:25 +10:00
Andrew Tridgell d17e3b17bf AP_AHRS: special handling for flying fixed wing with no compass
we need to accept EKF having no absolute position and velocity before
takeoff with no compass
2016-05-27 10:18:53 +10:00
Paul Riseborough 597ec61673 AP_AHRS: extend ekf fault status reporting coverage 2016-05-21 15:13:50 +10:00
Ricardo de Almeida Gonzaga 2bf9aa94ad AP_AHRS: Fix typos 2016-05-13 19:20:06 -03:00
Andrew Tridgell 73d3797a7e AP_AHRS: finish implementing have_ekf_logging() 2016-05-07 18:27:20 +10:00
Andrew Tridgell 795080742e AP_AHRS: added have_ekf_logging() API 2016-05-07 18:27:19 +10:00
Andrew Tridgell 07060051cf AP_AHRS: added API for forcing EKF to start
used by Replay to sync start times
2016-05-07 18:27:18 +10:00
Andrew Tridgell 664ce5c16e AP_AHRS: don't use disabled gyro in rate controllers
obey INS_USE* parameters in gyro estimate
2016-05-01 22:16:06 +10:00
Randy Mackay 4419b3c617 AHRS_NavEKF: fix get_position by using ekf origin
The EKF's getPosNED returns a vertical position relative to the EKF origin but previously this function was using it as if it was relative to ahrs's home
2016-04-21 11:23:07 +10:00
Jonathan Challinger 6a5f1c0bec AP_AHRS_NavEKF: reflect changes to getMagOffsets 2016-04-21 09:53:03 +10:00
Jonathan Challinger 18240107f0 AP_AHRS_NavEKF: add getGpsGlitchStatus 2016-04-14 12:24:04 +09:00
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