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7309 Commits

Author SHA1 Message Date
Paul Riseborough 5d0952ba23 AP_NavEKF: eliminate onGndBaroNoise 2015-04-03 15:15:10 -07:00
Paul Riseborough fafb898341 AP_NavEKF: tuning change to accel bias learning 2015-04-03 15:15:10 -07:00
Paul Riseborough 398accd151 AP_NavEKF: Improve pre-flight ready checking 2015-04-03 15:15:10 -07:00
Paul Riseborough 5c1a226bef AP_NavEKF : Improvements to pre-arm IMU bias estimation 2015-04-03 15:15:10 -07:00
Jonathan Challinger a5924acb3d AP_NavEKF: set dtIMU from ins expected sample rate 2015-04-03 15:15:10 -07:00
Paul Riseborough a1351e73ab AP_NavEKF : Compensate mag bias states for external copass offset changes 2015-04-03 15:15:09 -07:00
Paul Riseborough 14795719f6 AP_NavEKF: Add public function for estimated magnetometer offsets 2015-04-03 15:15:09 -07:00
Paul Riseborough 1c244af3d8 AP_NavEKF: Fix bug affecting in-flight GPS acquisition 
This bug caused velocities to be reset to zero
 2015-04-03 15:15:09 -07:00
Paul Riseborough b9b6938b1d AP_NavEKF: Add ability to start using GPS in-flight 
Improve the quality of the GPS required to set an EKF  origin
Eliminate repeated update of origin height - origin height updates once when EKF origin is set.
Operation in GPS mode is linked to setting of origin
 2015-04-03 15:15:09 -07:00
Paul Riseborough 98fa918b84 AP_NavEKF: Add new compass learning option 
Enables compass learning to be on continuously for non-position hold operation
 2015-04-03 15:15:09 -07:00
Paul Riseborough 961faa59d9 AP_NavEKF: Don't let reported GPS accuracy modify horiz vel data checks 2015-04-03 15:15:08 -07:00
Paul Riseborough a607eb8469 AP_NavEKF: Reduce the GPS glitch tether length from 100 to 50m 2015-04-03 15:15:08 -07:00
Paul Riseborough 496d31ab83 AP_NavEKF: Reduce max time Copters can reject GPS 
The maximum time copters can reject GPS has been reduced from 10 to 7 seconds as flight logs have show that inertial dead reckoning with vibration and calibration errors is not good enough to support 10 seconds without aiding.
 2015-04-03 15:15:08 -07:00
Paul Riseborough 8c2029d896 AP_NavEKF: Accel bias learning improvements 
Speed up pre-flight learning
Smoothen in-flight learning
 2015-04-03 15:15:08 -07:00
Paul Riseborough 19d1b3b813 AP_NavEKF: Update EKF origin height whilst disarmed 
This patch causes the EKF to update the height of its origin each time it receives a valid GPs message whislt disarmed.
The resultant EKF origin height represents the height of the zero baro alt datum relative to the GPS height datum.
 2015-04-03 15:15:08 -07:00
Paul Riseborough 70afcd7e70 AP_NavEKF: Add second stage alignment of yaw and earth field states 
Flight tests have shown that the magnetic field distortion associated with flight from steel structures can extend 3m or higher. To counteract this, a second and final yaw and magnetic field alignment has been added which is activated when the height exceeds 5m for the first time.
 2015-04-03 15:15:08 -07:00
Paul Riseborough ed9c05cf2a AP_NavEKF: Remove logic used to delay fusion for load levelling 
Logic used to delay optical flow and airspeed fusion to prevent it occurring on the same time step as magnetometer fusion has been removed. This is no longer required to efficiency improvements made at the firmware level.
 2015-04-03 15:15:07 -07:00
Paul Riseborough c0d23ffc30 AP_NavEKF: Filter accuracy and stability improvements 
Improvements in PX4 firmware have reduced the computational load  and mkae the previous practicwe of splitting magnetometer and optical flow fusion across multiple time steps unnecessary and make it possible to perform a covariance prediction prior to fusing data on the same time step. This patch:

1) Ensures that a covariance prediction is always performed prior to fusion of any observation
2) Removes the splitting of magnetometer fusion so that fusion of the X,Y and Z components occurs on the same time time step
3) Removes the splitting of optical flow fusion so that fusion of X and Y components occurs on the same time step
 2015-04-03 15:15:07 -07:00
Jonathan Challinger de1f7f5e63 AP_NavEKF: use published delta velocities and delta angles if available 2015-04-03 15:15:07 -07:00
priseborough 3421a320b5 AP_NavEKF: Compensate for ground effect when takeoff or landing expected 2015-04-03 15:15:07 -07:00
Jonathan Challinger 20d92f5f9d AP_NavEKF: floor GPS velocity noise at parameter value for conservatism 2015-04-03 15:15:07 -07:00
priseborough 9a797a5d49 AP_NavEKF: Use GPS reported speed accuracy if available 
UBlox receivers report an estimate of the speed accuracy that tests show correlates well to speed glitches. Using this to scale the GPS velocity observation noise will reduce the effect of bad GPS velocity data.
 2015-04-03 15:15:06 -07:00
Andrew Tridgell 45e016ea5b AP_InertialSensor: check for zero delta_velocity dt 2015-04-03 15:10:47 -07:00
Jonathan Challinger b306d7a356 AP_InertialSensor: accel cal sample for 400ms instead of 1s 2015-04-03 14:54:19 -07:00
Jonathan Challinger 1e1d8efa22 AP_InertialSensor: use expected update rate for accel cal sampling 2015-04-03 14:54:17 -07:00
Jonathan Challinger bd84328440 AP_InertialSensor: hack to "reset" the accel filter before taking a cal sample 2015-04-03 14:54:15 -07:00
Jonathan Challinger b2b42e081a AP_InertialSensor: use delta_velocity/dt for calibration if available 2015-04-03 14:54:10 -07:00
Jonathan Challinger 423160eaf8 AP_InertialSensor: publish delta_velocity_dt 2015-04-03 14:54:06 -07:00
Andrew Tridgell 4147825b87 AP_InertialSensor: fixed gyro calibration bug 
we must not update _gyro_offset[] until we have completed calibration
of that gyro, or we will end up using the new offsets when asking for
the raw gyro vector
 2015-04-03 06:57:30 -07:00
Andrew Tridgell 728dbf24db AP_Math: fixed vector inequality test 
many thanks to cat888

fixes issue #2039
 2015-04-01 20:40:37 -07:00
Randy Mackay d738eda59d GCS_MAVLink: integrate Serial Manager instance 2015-04-01 14:59:23 -07:00
Randy Mackay 1ed7737669 Mount: integrate Serial Manager instance 2015-04-01 14:59:21 -07:00
Randy Mackay cbcd32d698 GPS: integrate Serial Manager instance 2015-04-01 14:59:20 -07:00
Randy Mackay c148330c2b FrSkyTelem: integrate Serial Manager instance 2015-04-01 14:59:18 -07:00
Randy Mackay aef16160dc SerialManager: consolidate MAVLink1 and 2 2015-04-01 14:59:17 -07:00
Randy Mackay ca92821445 Filter: LowPassFilter gets another div-by-zero check 2015-04-01 10:34:28 -07:00
Jonathan Challinger 57f8a4d29d Filter: add get_cutoff_frequency 2015-04-01 10:15:07 -07:00
Jonathan Challinger 1828515b3b AP_Motors: bug fix to _batt_voltage_filt 2015-04-01 10:15:06 -07:00
Jonathan Challinger 89cdd02f58 AP_Motors: remove duplicate get_throttle function 2015-04-01 10:15:05 -07:00
Jonathan Challinger 0e53c0a892 AP_Motors: make output_armed() and output_disarmed() pure virtual 2015-04-01 10:14:38 -07:00
Andrew Tridgell 5acc4c333b AP_Arming: accept accel/gyro if OK in last 10 seconds 
this should prevent short periods of movement from triggering arming
status change alarms
 2015-03-31 15:37:24 -07:00
Randy Mackay 3f3e622be5 AC_PID: fix example sketch 2015-03-30 16:07:56 -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
Andrew Tridgell 3289d38339 AP_NavEKF: make the init functions return bool 
we need to know if it has initialised successfully
 2015-03-28 10:51:38 -07:00
Andrew Tridgell 7cd7ff89fd HAL_PX4: recover 12k of ram from USB buffers 
faster NuttX means we don't need such larger buffers
 2015-03-27 15:08:52 -07:00
Andrew Tridgell 10ec1b8290 DataFlash: example no longer builds with APM2 2015-03-26 06:32:00 -07:00
Andrew Tridgell 5cbfe4fd11 HAL_SITL: fixed copter interactive SITL 2015-03-25 12:27:27 -07:00
Andrew Tridgell 0c2232a4be HAL_SITL: don't sync clocks during system initialisation 2015-03-24 08:06:50 -07:00
Jonathan Challinger 127791127c AC_PosControl: fix double literals 2015-03-24 06:29:04 -07:00
Leonard Hall 09aa2f8114 AC_AttitudeControl: Fix function discription 2015-03-23 07:40:04 -07:00
Leonard Hall 6b104c0529 AC_AttitudeControl: No Overshoot limit for Stab 
This maybe done in a more obvious way using a switch rather than just
making the overshoot larger than 180 degrees.
 2015-03-23 07:40:02 -07:00
Andrew Tridgell 9748cb1e3e HAL_SITL: use a synthetic clock when possible 
this decouples wall clock time from simulation time if the FDM
supports it
 2015-03-22 18:57:30 -07:00
Randy Mackay 8a3a7bdcd1 Mount: add set_angle_target method 2015-03-21 21:52:22 +09:00
Randy Mackay f6021010c5 Mission: support do-mount-control 2015-03-21 21:52:19 +09:00
Randy Mackay 2189b16165 Mount_SToRM: remove message throttling 
recent versions of gimbal firmware can handle 50hz update rate
 2015-03-21 05:56:18 +09:00
Randy Mackay b3362d5829 Mount: calc_angle_to_location returns vehicle relative yaw 2015-03-21 05:56:16 +09:00
Randy Mackay d2739c5ce5 Mount_SToRM: slow updates to 10hz, reverse yaw, pitch 2015-03-20 20:46:45 +09:00
Randy Mackay c7dd6ae816 BattMon: SMBus becomes unhealthy after 5sec timeout 
Also remove unused internal variable
 2015-03-20 11:05:30 +09:00
Randy Mackay c44f304253 BattMon: analog monitor always healthy 2015-03-20 11:05:27 +09:00
Randy Mackay 98efcd5f03 AHRS: always use EKF for copter 2015-03-19 15:15:51 +09:00
Andrew Tridgell 5a4ed85588 AP_TECS: added TECS_LAND_PMAX 
this limits maximum pitch during the flare, which both reduces
integrator windup and prevents too high pitch which can cause a stall
 2015-03-19 14:46:41 +11:00
Randy Mackay 9aba885231 AC_Fence: fix prearm check 
before arming the EKF's pred_horiz_pos_abs flag should be used
 2015-03-18 21:25:47 +09:00
Andrew Tridgell ecd2a6f515 DataFlash: log temperature of IMUs 
this is the first step towards supporting temperature calibration of
IMUs
 2015-03-17 13:33:26 +11:00
Andrew Tridgell 23272e4013 AP_InertialSensor: added get_temperature() interface 
this will allow logging of individual temperature sensors
 2015-03-17 13:32:54 +11:00
Randy Mackay 7f25938834 AHRS: fix example sketch 2015-03-16 20:29:19 +09:00
Randy Mackay b01f9505b1 Mission: fix example sketch 
Also replace printf with print where possible
 2015-03-16 20:29:05 +09:00
Randy Mackay 385b3744ea MotorTri: check servo_out above min_throttle 2015-03-16 14:49:38 +09:00
Randy Mackay f9e29a7f77 MotorSingle: check servo_out above min_throttle 
We need to recalc radio_out or the motors could fall below min throttle
 2015-03-16 14:49:37 +09:00
Randy Mackay 8de5d16f96 MotorCoax: check servo_out above min_throttle 
We need to recalc radio_out or the motors could fall below min throttle
 2015-03-16 14:49:35 +09:00
Leonard Hall 9a3f48cc1f AC_PosControl: ensure throttle output above zero 2015-03-16 14:49:33 +09:00
Leonard Hall 31a55b2bd6 MotorsMatrix: fix div by zero by ensuring throttle is above min 2015-03-16 14:49:31 +09:00
Paul Riseborough 9c2f1ce869 AP_Mount: Fix bug in mavlink gimbal attitude control 2015-03-16 09:54:43 +11:00
ahcorde 103bb2a08d AP_InertialSensor: Fix orientation MPU6000 PXF 2015-03-16 09:50:51 +11:00
mirkix d4d42599b0 AP_HAL_Linux: Add RcInput and RcOutput with only one PRU when using a BBB. BBBMINI use the RC AIO PRU firmware already 2015-03-16 09:33:54 +11:00
mirkix a6b018eab9 AP_HAL_Linux: BBBMINI use kernel CS now 2015-03-16 09:15:06 +11:00
Jonathan Challinger dff899647f AP_Mount: use AP_AHRS_TYPE instead of AP_AHRS_MOUNT 2015-03-16 09:14:03 +11:00
Jonathan Challinger f92c711d14 AP_AHRS: define AP_AHRS_TYPE to be the type of AHRS in use 2015-03-16 09:14:03 +11:00
Andrew Tridgell 569626ac1a AP_TECS: fixed APM2 build 2015-03-16 08:40:18 +11:00
Andrew Tridgell cf2445dc97 AP_InertialSensor: prevent nested accelerometer calibration 2015-03-15 15:22:59 +11:00
Andrew Tridgell 8fc58d1cbe AP_Vehicle: expose LAND_FLARE_SEC in vehicle parameters for fixed wing 2015-03-15 13:52:34 +11:00
Andrew Tridgell 060f553097 AP_TECS: provide a much smoother transition before flare 
this moves the pitch constraint smoothly between unconstrained and
fully constrained over two time constants before the flare. This
greatly reduces the sudden pitch changes at flare
 2015-03-15 13:52:17 +11:00
Andrew Tridgell 9c0614c7bb AP_RangeFinder: default test to I2C Lidar 2015-03-15 13:50:59 +11:00
Andrew Tridgell c8b0970e61 AP_Compass: show compass count in example 2015-03-14 20:00:29 +11:00
Andrew Tridgell c565d3b805 AP_Airspeed: fixed example build 2015-03-14 20:00:15 +11:00
Andrew Tridgell f4455d063e AP_Compass: fixed example 2015-03-14 17:07:39 +11:00
Andrew Tridgell 585a105128 AP_AHRS: use compass->last_update_usec() 2015-03-14 12:31:50 +11:00
Andrew Tridgell de3f461a55 AP_NavEKF: use compass->last_update_usec() 2015-03-14 12:31:39 +11:00
Andrew Tridgell 1962706a33 AP_Compass: fixed last_update, using last_update_usec() 
this broke use of compass in the EKF
 2015-03-14 12:31:23 +11:00
Andrew Tridgell 86fc90f54c AP_Compass: removed spurious rotation in PX4 backend 
and cleanup rotation macros
 2015-03-14 08:52:37 +11:00
Andrew Tridgell d7bac39539 AP_Compass: removed two unused functions 2015-03-14 08:52:37 +11:00
Andrew Tridgell 73782c41a9 DataFlash: disable CLI on APM2 2015-03-13 22:52:55 +11:00
Andrew Tridgell 8a99cab535 AP_InertialSensor: load only HIL backend for hil_mode 2015-03-13 22:52:55 +11:00
Andrew Tridgell fec2025469 AP_Compass: added set_hil_mode() 2015-03-13 22:52:55 +11:00
Andrew Tridgell 2e9d2e6449 AP_Baro: load only HIL backend for hil_mode 2015-03-13 22:52:55 +11:00
Randy Mackay bb74b8dec8 AC_PosControl: fix twitch when entering RTL 
Also removed slow_cpu flag
Fixed bug in update to _accel_target_jerk_limited.
 2015-03-13 20:47:19 +09:00
Andrew Tridgell 8f6982860f AP_Compass: fixed devid for 2nd compass 2015-03-13 20:46:32 +11:00
Andrew Tridgell 7b51c907f5 AP_Compass: zero some more variables in constructor and init 2015-03-13 19:22:11 +11:00
Andrew Tridgell 4bc92b6373 AP_Compass: removed _product_id var 2015-03-13 18:59:52 +11:00
Andrew Tridgell 3a1cbaeb25 AP_Mission: fix for new compass API 2015-03-13 18:46:18 +11:00
Andrew Tridgell b488d6de00 AP_AHRS: fix for new compass API 2015-03-13 18:46:17 +11:00