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Improve Safe Strat State Machine #777

Merged
muellerr merged 5 commits from safe-strat-improvement into main 2023-08-15 13:19:15 +02:00
Conversation 0 Commits 5 Files Changed 5 +29 -18
5 changed files with 29 additions and 18 deletions
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2
CHANGELOG.md
View File

@ -40,6 +40,8 @@ will consitute of a breaking change warranting a new major release:
return the actual GPS data will be ignored once SPG4 is running. However, by setting the
according parameter, the ACS Controller can be directed to ignore the SGP4 solution.
- Skyview dataset for more GPS TM has been added
- The MGM and SUS vectors being too close together does not prevent the usage of the safe
mode controller anymore.
- Parameter to disable usage of MGM4, which is part of the MTQ and therefore cannot be
disabled without disabling the MTQ itself.

6
mission/controller/AcsController.cpp
View File

@ -204,8 +204,7 @@ void AcsController::performSafe() {
acs::SafeModeStrategy safeCtrlStrat = safeCtrl.safeCtrlStrategy(
mgmDataProcessed.mgmVecTot.isValid(), not mekfInvalidFlag,
gyrDataProcessed.gyrVecTot.isValid(), susDataProcessed.susVecTot.isValid(),
fusedRotRateData.rotRateOrthogonal.isValid(), fusedRotRateData.rotRateTotal.isValid(),
acsParameters.safeModeControllerParameters.useMekf,
fusedRotRateData.rotRateTotal.isValid(), acsParameters.safeModeControllerParameters.useMekf,
acsParameters.safeModeControllerParameters.useGyr,
acsParameters.safeModeControllerParameters.dampingDuringEclipse);
switch (safeCtrlStrat) {
@ -223,7 +222,8 @@ void AcsController::performSafe() {
safeCtrlFailureCounter = 0;
break;
case (acs::SafeModeStrategy::SAFECTRL_SUSMGM):
safeCtrl.safeSusMgm(mgmDataProcessed.mgmVecTot.value, fusedRotRateData.rotRateParallel.value,
safeCtrl.safeSusMgm(mgmDataProcessed.mgmVecTot.value, fusedRotRateData.rotRateTotal.value,
fusedRotRateData.rotRateParallel.value,
fusedRotRateData.rotRateOrthogonal.value,
susDataProcessed.susVecTot.value, sunTargetDir, magMomMtq, errAng);
safeCtrlFailureFlag = false;

29
mission/controller/acs/control/SafeCtrl.cpp
View File

@ -9,10 +9,12 @@ SafeCtrl::SafeCtrl(AcsParameters *acsParameters_) { acsParameters = acsParameter
SafeCtrl::~SafeCtrl() {}
acs::SafeModeStrategy SafeCtrl::safeCtrlStrategy(
const bool magFieldValid, const bool mekfValid, const bool satRotRateValid,
const bool sunDirValid, const bool fusedRateSplitValid, const bool fusedRateTotalValid,
const uint8_t mekfEnabled, const uint8_t gyrEnabled, const uint8_t dampingEnabled) {
acs::SafeModeStrategy SafeCtrl::safeCtrlStrategy(const bool magFieldValid, const bool mekfValid,
const bool satRotRateValid, const bool sunDirValid,
const bool fusedRateTotalValid,
const uint8_t mekfEnabled,
const uint8_t gyrEnabled,
const uint8_t dampingEnabled) {
if (not magFieldValid) {
return acs::SafeModeStrategy::SAFECTRL_NO_MAG_FIELD_FOR_CONTROL;
} else if (mekfEnabled and mekfValid) {
@ -20,7 +22,7 @@ acs::SafeModeStrategy SafeCtrl::safeCtrlStrategy(
} else if (sunDirValid) {
if (gyrEnabled and satRotRateValid) {
return acs::SafeModeStrategy::SAFECTRL_GYR;
} else if (not gyrEnabled and fusedRateSplitValid) {
} else if (not gyrEnabled and fusedRateTotalValid) {
return acs::SafeModeStrategy::SAFECTRL_SUSMGM;
} else {
return acs::SafeModeStrategy::SAFECTRL_NO_SENSORS_FOR_CONTROL;
@ -95,9 +97,10 @@ void SafeCtrl::safeGyr(const double *magFieldB, const double *satRotRateB, const
calculateMagneticMoment(magMomB);
}
void SafeCtrl::safeSusMgm(const double *magFieldB, const double *rotRateParallelB,
const double *rotRateOrthogonalB, const double *sunDirB,
const double *sunDirRefB, double *magMomB, double &errorAngle) {
void SafeCtrl::safeSusMgm(const double *magFieldB, const double *rotRateTotalB,
const double *rotRateParallelB, const double *rotRateOrthogonalB,
const double *sunDirB, const double *sunDirRefB, double *magMomB,
double &errorAngle) {
// convert magFieldB from uT to T
VectorOperations<double>::mulScalar(magFieldB, 1e-6, magFieldBT, 3);
@ -105,8 +108,14 @@ void SafeCtrl::safeSusMgm(const double *magFieldB, const double *rotRateParallel
double dotSun = VectorOperations<double>::dot(sunDirRefB, sunDirB);
errorAngle = acos(dotSun);
std::memcpy(satRotRateParallelB, rotRateParallelB, sizeof(satRotRateParallelB));
std::memcpy(satRotRateOrthogonalB, rotRateOrthogonalB, sizeof(satRotRateOrthogonalB));
if (VectorOperations<double>::norm(rotRateParallelB, 3) != 0 and
VectorOperations<double>::norm(rotRateOrthogonalB, 3) != 0) {
std::memcpy(satRotRateParallelB, rotRateParallelB, sizeof(satRotRateParallelB));
std::memcpy(satRotRateOrthogonalB, rotRateOrthogonalB, sizeof(satRotRateOrthogonalB));
} else {
splitRotationalRate(rotRateTotalB, sunDirB);
}
calculateRotationalRateTorque(acsParameters->safeModeControllerParameters.k_parallelSusMgm,
acsParameters->safeModeControllerParameters.k_orthoSusMgm);
calculateAngleErrorTorque(sunDirB, sunDirRefB,

8
mission/controller/acs/control/SafeCtrl.h
View File

@ -14,7 +14,6 @@ class SafeCtrl {
acs::SafeModeStrategy safeCtrlStrategy(const bool magFieldValid, const bool mekfValid,
const bool satRotRateValid, const bool sunDirValid,
const bool fusedRateSplitValid,
const bool fusedRateTotalValid, const uint8_t mekfEnabled,
const uint8_t gyrEnabled, const uint8_t dampingEnabled);
@ -25,9 +24,10 @@ class SafeCtrl {
void safeGyr(const double *magFieldB, const double *satRotRateB, const double *sunDirB,
const double *sunDirRefB, double *magMomB, double &errorAngle);
void safeSusMgm(const double *magFieldB, const double *rotRateParallelB,
const double *rotRateOrthogonalB, const double *sunDirB, const double *sunDirRefB,
double *magMomB, double &errorAngle);
void safeSusMgm(const double *magFieldB, const double *rotRateTotalB,
const double *rotRateParallelB, const double *rotRateOrthogonalB,
const double *sunDirB, const double *sunDirRefB, double *magMomB,
double &errorAngle);
void safeRateDampingGyr(const double *magFieldB, const double *satRotRateB,
const double *sunDirRefB, double *magMomB, double &errorAngle);

2
tmtc

@ -1 +1 @@
Subproject commit 4b054b7628e43975e2401c7db10c358824f7a2d3
Subproject commit 403657110b1555b0e15702cb96d7fe43e815a036