| 6f7854b31a7d58e1319f3c00c2562f2dfb87a0cc |
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19-Feb-2016 |
Aurimas Liutikas <aurimas@google.com> |
Fix compiler warnings in sensorservice.
Bug: 26936282
Change-Id: Ibd43b3c2aaa32cb77b610ca9e1537e5db8827c87
/frameworks/native/services/sensorservice/Fusion.cpp
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| f66684a6fb2a2991e84a085673629db2a0494fc6 |
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23-Jul-2015 |
Peng Xu <pengxu@google.com> |
Add AOSP Geomag and Game Rotation, and Gravity
Providing AOSP software implementation of Geomag Rotation Vector, Game
Rotation Vector and Gravity sensors for platforms that does not have
hardware implementation of these sensors but do have primitive sensors
(accelerometers, gyrometers and magnetometers).
Previously, AOSP Gravity sensor is enabled only when all primitive sensors are
available. This is changed so that AOSP Gravity will be available even
no magnetometer is in the device.
Related bug/feature request:
* b/17508800
* b/22610016
Change-Id: I4e2d3e544884047d66e7fdbce2282f1f8234eae9
/frameworks/native/services/sensorservice/Fusion.cpp
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| 24f9bea8ebc752cee0047fce1c0cddbb431e886d |
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30-May-2013 |
Mathias Agopian <mathias@google.com> |
revert parts of dc5b63e40, which made gyro drift estimation unstable
initialize the system covariance matrix with non-zero
values for the gyro-bias part. this improves the initial
bias estimation speed significantly.
the initial covariance matrix should be small because the drift
changes slowly. the real problem is that we're not starting with
a good estimate of the drift, which this algorithm relies on.
so with this revert, it'll take a while for the drift to be estimated
but it won't be unstable.
Change-Id: Id5584bc114a2390d507643b2451b2650c1b90721
/frameworks/native/services/sensorservice/Fusion.cpp
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| bdf277355dcd647bd5d27b38fc107243a2247a02 |
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29-Jun-2012 |
Mathias Agopian <mathias@google.com> |
improve sensor fusion
we now use a better quaternion propagation equation
this is especially beneficial for lower gyroscope rates
Change-Id: Ifbf273c8a092a8849ca4fe4b9bca30787e924018
/frameworks/native/services/sensorservice/Fusion.cpp
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| 8f11b24a729c9779d75e09df27967091dc6e27c7 |
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28-Jun-2012 |
Mathias Agopian <mathias@google.com> |
add some comments
Change-Id: Ia2e2c9531715fc2bd5b51c4dc58389e01abfe7e6
/frameworks/native/services/sensorservice/Fusion.cpp
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| dc5b63e40ee697324d39fe105d6f12c2bb031fc6 |
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19-Jun-2012 |
Mathias Agopian <mathias@google.com> |
small improvement to sensor fusion
1) there was a typo when computing the system covariance
a term in dT^3 was ommitted; the impact was was very limited
because of how small this term is.
2) initialize the system covariance matrix with non-zero
values for the gyro-bias part. this improves the initial
bias estimation speed significantly.
3) added comments here and there
Change-Id: I4328c9cca73e089889d5e74b9fda99d7831762dc
/frameworks/native/services/sensorservice/Fusion.cpp
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| 3c20fbed7f3a916ced10f2ed5a272271b7d81ede |
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06-Jan-2012 |
Steve Block <steveblock@google.com> |
Rename (IF_)LOGW(_IF) to (IF_)ALOGW(_IF) DO NOT MERGE
See https://android-git.corp.google.com/g/157065
Bug: 5449033
Change-Id: I00a4b904f9449e6f93b7fd35eac28640d7929e69
/frameworks/native/services/sensorservice/Fusion.cpp
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| 667102f6b072582fe497599e0b760f9fc94ceffa |
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15-Sep-2011 |
Mathias Agopian <mathias@google.com> |
improve sensorservice dumpsys
Change-Id: I8b53d5cab884c3aca16d95df5fbf288368d52e8b
/frameworks/native/services/sensorservice/Fusion.cpp
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| a83f45c6c734084422f56733c25350625594bc00 |
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25-Aug-2011 |
Mathias Agopian <mathias@google.com> |
Fix a few style issues and remove LOG spam
Change-Id: I6b6f75373f4ac28f98dea6a6f1c2567a6aa02243
/frameworks/native/services/sensorservice/Fusion.cpp
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| 3e87d8dadefaf4b56bf15a15f1b53928d7a12cd2 |
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19-Aug-2011 |
Michael Johnson <mpj@google.com> |
More error checks to avoid div by zero.
Change-Id: I18e5b72d02bf5420c14334d3a03f18fa40572d31
/frameworks/native/services/sensorservice/Fusion.cpp
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| a01b4e237d57b74689576a3d486a2b2b903e74f4 |
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18-Aug-2011 |
Max Braun <braun@google.com> |
Fix occasional fusion divergence by detecting it and resetting the fusion.
Change-Id: I51186e12fb9b2316e3671e3908174f4495df89a0
/frameworks/native/services/sensorservice/Fusion.cpp
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| eaf2d0bfe37415ba1e42a97608823e8dbef53220 |
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14-Jun-2011 |
Mathias Agopian <mathias@google.com> |
cleanup Kalman filter parameters, add/fix comments/units
Change-Id: Iedcae7164af8f7ea0e048ea7c72d0f35d16d739f
/frameworks/native/services/sensorservice/Fusion.cpp
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| 3301542828febc768e1df42892cfac4992c35474 |
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28-May-2011 |
Mathias Agopian <mathias@google.com> |
use quaternions instead of MRPs
also use correct time propagation equation
disable the fused sensors when gyro is not present since
they were unusable in practice.
Change-Id: Iad797425784e67dc6c5690e97c71c583418cc5b5
/frameworks/native/services/sensorservice/Fusion.cpp
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| 984826cc158193e61e3a00359ef4f6699c7d748a |
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18-May-2011 |
Mathias Agopian <mathias@google.com> |
9-axis sensor fusion with Kalman filter
Add support for 9-axis gravity and linear-acceleration sensors
virtual orientation sensor using 9-axis fusion
Change-Id: I6717539373fce781c10e97b6fa59f68a831a592f
/frameworks/native/services/sensorservice/Fusion.cpp
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