Commit Graph

85 Commits

Author SHA1 Message Date
Andy Piper faf9bbbf3a AP_InertialSensor: make the backend fast gyro rate configurable
raise gyro rate default on F7 and H7
clean up gyro rate docs and output startup banner
2020-07-10 16:45:29 +10:00
Andy Piper 61bb42cc0c AP_InertialSensor: allow up to four distinct notch center frequencies to be updated
apply the LPF after the notch filters to reduced notch-induced noise
2020-06-21 19:09:35 +10:00
Andy Piper 8ac79da643 AP_InertialSensor: FFT gyro window would overflow on windows >= 256
convert FFT buffers to ObjectBuffer<float> for lock-free access
push gyro samples directly into the FFT ring buffer from the gyro thread
2020-05-24 07:43:34 +10:00
Andrew Tridgell 5c6749ee54 AP_InertialSensor: use wait_pin() to wait for DRDY pin if available 2020-04-23 07:28:13 +10:00
Andy Piper 0e9b2a26c5 AP_InertialSensor: SITL the raw sample rate is not the same as the sensor rate
use regulated time for frequency noise to avoid spurious harmonics
SITL sensors must be true separate instances
don't compile in FFT structures if DSP disabled
2020-02-22 11:15:37 +11:00
Andy Piper 3d9776dd6d AP_InertialSensor: expose statically filtered gyro values for FFT analysis and allow sampling to gyro window for FFT analysis.
FFT windows can be dynamically allocated
add harmonic notch dynamic tracking mode
unwind gyro window allocation in the case of failure
allow access to harmonic notch harmonics
2020-02-22 11:15:37 +11:00
Andy Piper 143a071788 AP_InertialSensor: add rpm-based motor noise to gyros and accels
Remove sample time error in backend.
2019-12-17 10:07:06 +11:00
Andrew Tridgell 236ce28339 AP_InertialSensor: updated for heater changes 2019-11-02 16:31:04 +11:00
Andy Piper 8e385d7453 AP_InertialSensor: correct formatting 2019-09-11 18:41:05 +10:00
Andy Piper 5b7f9f6bea AP_InertialSensor: while sensors are converging update the filters sample rates. if gyro filtering produces invalid output, keep the previous value 2019-09-11 18:41:05 +10:00
Andy Piper 3261677e01 AP_InertialSensor: remove _ prefix from methods. use changed filter methods. 2019-09-11 18:41:05 +10:00
Andy Piper 50f7e50634 AP_InertialSensor: add harmonic notch filter to gyro filter chain
Allow dynamic updates to the calculated frequency. Convert bandwidth and frequency to floats.
backend variables do not need to be indexed per-backed
2019-09-11 18:41:05 +10:00
Andrew Tridgell 09d3392aee AP_InertialSensor: zero accumulators on time step
this zeros the delta angle and delta velocity accumulators when a
sensor is unavailable for a period of 0.1s. This prevents garbage
values being passed into the EKF when a sensor dies and then becomes
available again some time later
2019-07-07 19:03:01 +10:00
Andrew Tridgell 3444e82ef9 AP_InertialSensor: added RC switch for killing IMUs 2019-07-07 19:03:01 +10:00
Andy Piper fff81a2163 AP_InertialSensor: Make sure the LPF output is used by the notch input. 2019-06-06 17:09:17 +10:00
Andy Piper 18d403c3ac AP_InertialSensor: Rework notch filter allocation and sampling
https://github.com/ArduPilot/ardupilot/issues/11346

Allocate a notch filter per-IMU.
Update the notch filters in the backend at the sensor sample rate.
Allow raw logging of post-filtered gyro and accel values.
2019-06-06 17:09:17 +10:00
Peter Barker ef860db558 AP_InertialSensor: add floating point constant designators 2019-04-05 23:04:17 -07:00
Tom Pittenger 3eeaa2c8df AP_InertialSensor: rename dataflash to logger 2019-03-28 16:40:57 +11:00
Tom Pittenger 9347e6d36f AP_InertialSensor: unify singleton naming to _singleton and get_singleton() 2019-02-10 19:09:58 -07:00
Peter Barker b47733142f GLOBAL: rename DataFlash_Class to AP_Logger 2019-01-18 18:08:20 +11:00
Andrew Tridgell 755dc8dc5d AP_InertialSensor: use WITH_SEMAPHORE()
and removed usage of hal.util->new_semaphore()
2018-10-17 12:54:22 +11:00
Peter Barker 1a640e3405 AP_InertialSensor: parameterise sensor-rate logging, generalise it
AP_InertialSensor: add parameters for push-to-log interval and count

AP_InertialSensor: rename BAT_RAW to BAT_OPT

This becomes a bitmask of options for the BatchSampler

AP_InertialSensor: rename 'fast sample' to 'sensorrate sample'

AP_InertialSensor: const sensor-rate filter method

AP_InertialSampler: remove hard-coding of sample rate multiplier

AP_InertialSensor: use parameter to enable/disable sensor-rate logging

AP_InertialSensor: use a parameter to control sensor-rate logging

AP_InertialSensor: allow backends to override sensor data multiplier

e.g. some accelerometers are sensitive over wider ranges than the default 16G

AP_Inertialsensor: correct sample rate multiplier
2018-05-01 09:35:29 +10:00
Andrew Tridgell 44131202cd AP_InertialSensor: 4kHz batch sampling 2018-05-01 09:35:29 +10:00
Jacob Walser ad4e928e7d AP_InertialSensor: add support for custom board orientations 2018-04-24 13:04:37 +01:00
Andrew Tridgell 0e6497aa85 AP_InertialSensor: merged in Revo driver 2018-02-10 09:14:41 +11:00
Peter Barker 9566abb3a8 AP_InertialSensor: add IMU batch sampling 2017-10-27 16:33:45 +11:00
Peter Barker 5096e2fca9 AP_InertialSensor: use df singleton, factor out log_{gyro,accel}_raw 2017-10-27 16:33:45 +11:00
Peter Barker 6ae86a0b8c AP_InertialSensor: use DataFlash should_log to determine raw logging 2017-06-29 15:26:27 +01:00
Andrew Tridgell 2876f1467c AP_InertialSensor: converge sensor rate quickly, then slowly
converge fast for the first 60 seconds, then more slowly to reduce
noise
2017-05-01 15:13:56 +10:00
Andrew Tridgell db25b6e966 AP_InertialSensor: estimate and log sensor rates for all IMUs
this adds IMU.GHz and IMU.AHz log fields so we can see the actual
observed sensor rates of each IMU
2017-05-01 15:06:46 +10:00
Andrew Tridgell 49cc0965c0 AP_InertialSensor: separate handling of FIFO and non-FIFO sensors
FIFO sensors produce data at a well known rate, but samples come in
bunches, so we can't use the system clock to calculate deltaT.

non-FIFO sensors produce data when we sample them, but that rate is
less regular due to timing jitter.

For FIFO sensors this changes makes us use a learned sample rate,
which allows for different clock speeds on sensor and system board.

For non-FIFO sensors we use the system clock to measure deltaT

the overall effect is a fix for sensors that produce samples at other
than the claimed datasheet rate.
2017-05-01 15:06:46 +10:00
murata a3f5b4f319 AP_InertialSensor: Change from magic number 0 to definition name. 2017-02-18 14:12:36 +00:00
Julien Beraud 3d9dacb227 AP_InertialSensor: push gyro data for opticalflow
Do it only if there is an optical flow in the current HAL
2017-01-23 21:23:16 +11:00
Andrew Tridgell d9c8db7024 AP_InertialSensor: implement a new strategy for fast sampling
this moves to using a 1p filter on the high rate data, followed by
averaging down to 1kHz then a 2p filter to apply configured cutoff
frequency.

It also fixes the FIFO reset to not cause data corruption. We need to
disable all FIFO channels before doing the reset, and wait for the
FIFO to stop in the sensor.

Finally it moves sampling of the MPU6000 and MPU9250 into the main
thread. That significantly improves scheduling performance as we no
longer get long FIFO SPI transfers happening during other tasks. All
transfers happen at the start of the fast loop. That makes timing much
more predictable.

Thanks to Leonard and Paul for help with this design!
2016-11-25 17:49:57 +11:00
Andrew Tridgell cb1a5d4c74 AP_InertialSensor: take semaphore for update of accumulators
this fixes a race in update of delta angle and delta velocity between
backend and frontend
2016-11-18 06:32:17 +11:00
Andrew Tridgell 3289e90134 AP_InertialSensor: added error count increments in drivers 2016-11-11 08:08:55 +11:00
Lucas De Marchi ace61087a1 AP_InertialSensor: remove product_id
We only leave the parameter there for backward-compatibility. However
product id on the inertial sensor is not much useful since it's only
kept for the first instance.

A better implementation per-gyro and per-accel is needed in order to
avoid problems with sensors taking the offsets configured for another
sensor.
2016-11-09 17:08:05 +11:00
Andrew Tridgell a5c5e033d2 AP_InertialSensor: fixed threading and locking in remaining backends
use a backend semaphore for shared data and use thread per bus where
available
2016-11-09 17:08:01 +11:00
Andrew Tridgell 2df6ed08c2 AP_InertialSensor: added optional per-instance orientation
this is needed for multi-sensor boards to get orientation right for
each sensor
2016-11-09 17:08:00 +11:00
murata c808ee2f49 Global: To nullptr from NULL.
RC_Channel: To nullptr from NULL.

AC_Fence: To nullptr from NULL.

AC_Avoidance: To nullptr from NULL.

AC_PrecLand: To nullptr from NULL.

DataFlash: To nullptr from NULL.

SITL: To nullptr from NULL.

GCS_MAVLink: To nullptr from NULL.

DataFlash: To nullptr from NULL.

AP_Compass: To nullptr from NULL.

Global: To nullptr from NULL.

Global: To nullptr from NULL.
2016-11-02 16:04:47 -02:00
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
Andrew Tridgell 6f9530ebaa AP_InertialSensor: added optional FSYNC external sync bit
used to synchronise with image sensor on Disco
2016-09-05 12:55:32 +10:00
Andrew Tridgell eee9fc88a1 AP_InertialSensor: avoid ifdef for AP_MODULE_SUPPORTED 2016-07-14 13:39:47 +10:00
Andrew Tridgell 33ce1213a2 AP_InertialSensor: call gyro_sample and accel_sample AP_Module hooks 2016-07-14 13:39:47 +10:00
Andrew Tridgell 834acaffee AP_InertialSensor: provide IMU temperature to HAL for all boards 2016-07-01 15:29:52 +10:00
Andrew Tridgell ee453783eb AP_InertialSensor: added get_delta_angle_dt() API 2016-01-19 09:50:21 +11:00
Tom Pittenger 3aaf2b1d2b AP_InertialSensor: add pos/neg peak detector
new functions that get a filtered min/max accel peaks on each axis with fixed 500ms timeout:
    Vector3f get_accel_peak_hold_pos()
    Vector3f get_accel_peak_hold_neg()

This allows slower mechanisms, such as is_flying, to detect accel spikes which would indicate ground or object impacts. Vibe is too filtered. Independent positive and negative peaks are available
2016-01-02 09:58:31 +11:00
Jonathan Challinger bae16a61e2 AP_InertialSensor: fix segfault 2015-12-29 23:10:56 -08:00
Jonathan Challinger 492223cb84 AP_InertialSensor: support AP_AccelCal 2015-12-29 10:46:34 -08:00
Andrew Tridgell 9cdd5f3944 AP_InertialSensor: catch NAN errors in accel and gyro filters 2015-11-22 17:30:29 +11:00