133 lines
4.0 KiB
C++
133 lines
4.0 KiB
C++
#include "components/motion/MotionController.h"
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//#include <task.h>
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#include "utility/Math.h"
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using namespace Pinetime::Controllers;
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namespace {
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constexpr inline int32_t Clamp(int32_t val, int32_t min, int32_t max) {
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return val < min ? min : (val > max ? max : val);
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}
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// only returns meaningful values if inputs are acceleration due to gravity
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int16_t DegreesRolled(int16_t y, int16_t z, int16_t prevY, int16_t prevZ) {
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int16_t prevYAngle = Pinetime::Utility::Asin(Clamp(prevY * 32, -32767, 32767));
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int16_t yAngle = Pinetime::Utility::Asin(Clamp(y * 32, -32767, 32767));
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if (z < 0 && prevZ < 0) {
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return yAngle - prevYAngle;
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}
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if (prevZ < 0) {
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if (y < 0) {
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return -prevYAngle - yAngle - 180;
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}
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return -prevYAngle - yAngle + 180;
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}
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if (z < 0) {
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if (y < 0) {
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return prevYAngle + yAngle + 180;
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}
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return prevYAngle + yAngle - 180;
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}
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return prevYAngle - yAngle;
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}
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}
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void MotionController::Update(int16_t x, int16_t y, int16_t z, uint32_t nbSteps) {
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// if (this->nbSteps != nbSteps && service != nullptr) {
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// service->OnNewStepCountValue(nbSteps);
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// }
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//
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// if (service != nullptr && (this->x != x || yHistory[0] != y || zHistory[0] != z)) {
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// service->OnNewMotionValues(x, y, z);
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// }
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//
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// lastTime = time;
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// time = xTaskGetTickCount();
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lastX = this->x;
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this->x = x;
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yHistory++;
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yHistory[0] = y;
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zHistory++;
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zHistory[0] = z;
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stats = GetAccelStats();
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int32_t deltaSteps = nbSteps - this->nbSteps;
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if (deltaSteps > 0) {
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currentTripSteps += deltaSteps;
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}
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this->nbSteps = nbSteps;
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}
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MotionController::AccelStats MotionController::GetAccelStats() const {
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AccelStats stats;
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for (uint8_t i = 0; i < AccelStats::numHistory; i++) {
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stats.yMean += yHistory[histSize - i];
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stats.zMean += zHistory[histSize - i];
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stats.prevYMean += yHistory[1 + i];
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stats.prevZMean += zHistory[1 + i];
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}
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stats.yMean /= AccelStats::numHistory;
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stats.zMean /= AccelStats::numHistory;
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stats.prevYMean /= AccelStats::numHistory;
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stats.prevZMean /= AccelStats::numHistory;
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for (uint8_t i = 0; i < AccelStats::numHistory; i++) {
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stats.yVariance += (yHistory[histSize - i] - stats.yMean) * (yHistory[histSize - i] - stats.yMean);
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stats.zVariance += (zHistory[histSize - i] - stats.zMean) * (zHistory[histSize - i] - stats.zMean);
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}
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stats.yVariance /= AccelStats::numHistory;
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stats.zVariance /= AccelStats::numHistory;
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return stats;
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}
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bool MotionController::ShouldRaiseWake() const {
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return false;
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// constexpr uint32_t varianceThresh = 56 * 56;
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// constexpr int16_t xThresh = 384;
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// constexpr int16_t yThresh = -64;
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// constexpr int16_t rollDegreesThresh = -45;
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//
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// if (x < -xThresh || x > xThresh) {
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// return false;
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// }
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//
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// // if the variance is below the threshold, the accelerometer values can be considered to be from acceleration due to gravity
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// if (stats.yVariance > varianceThresh || (stats.yMean < -724 && stats.zVariance > varianceThresh) || stats.yMean > yThresh) {
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// return false;
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// }
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//
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// return DegreesRolled(stats.yMean, stats.zMean, stats.prevYMean, stats.prevZMean) < rollDegreesThresh;
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}
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bool MotionController::ShouldShakeWake(uint16_t thresh) {
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return false;
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// /* Currently Polling at 10hz, If this ever goes faster scalar and EMA might need adjusting */
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// int32_t speed =
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// std::abs(zHistory[0] - zHistory[histSize - 1] + (yHistory[0] - yHistory[histSize - 1]) / 2 + (x - lastX) / 4) * 100 / (time - lastTime);
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// // (.2 * speed) + ((1 - .2) * accumulatedSpeed);
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// accumulatedSpeed = speed / 5 + accumulatedSpeed * 4 / 5;
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//
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// return accumulatedSpeed > thresh;
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}
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void MotionController::Init(Pinetime::Drivers::Bma421::DeviceTypes types) {
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switch (types) {
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case Drivers::Bma421::DeviceTypes::BMA421:
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this->deviceType = DeviceTypes::BMA421;
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break;
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case Drivers::Bma421::DeviceTypes::BMA425:
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this->deviceType = DeviceTypes::BMA425;
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break;
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default:
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this->deviceType = DeviceTypes::Unknown;
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break;
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}
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}
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