Test
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@ -92,7 +92,7 @@ public class AccelerometerActivity extends AppCompatActivity implements SensorEv
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}
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});
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mAccelerometerViewModel.getAccelerometerAlarmDetected().observe(this, new Observer<Boolean>() {
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mAccelerometerViewModel.getMovementDetectedValue().observe(this, new Observer<Boolean>() {
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@Override
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public void onChanged(Boolean aBoolean) {
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if (aBoolean) {
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@ -6,59 +6,86 @@ import androidx.lifecycle.ViewModel;
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import com.example.greenwatch.models.Device;
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import com.example.greenwatch.repositories.DeviceRepository;
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import com.example.greenwatch.sensors.AccelerometerSensor;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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public class AccelerometerViewModel extends ViewModel implements ViewModelInterface {
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private MutableLiveData<List<Device>> mDeviceList;
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private MutableLiveData<Boolean> mAccelerometerAlarmDetected;
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private MutableLiveData<Boolean> mMovementDetected = new MutableLiveData<>();
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private MutableLiveData<List<Device>> mAlarmHistoryList;
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private MutableLiveData<Boolean> mStartAlarmRecording;
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private AccelerometerSensor mAccelerometerSensor;
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private DeviceRepository mDeviceRepository;
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private ArrayList<Float> Gesamt_be;
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int arraySize = 500;
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int functionCallCount;
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float meanValue;
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float offsetValue;
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float thresholdValue;
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boolean startMeasuring;
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@Override
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public void init() {
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if (mDeviceRepository == null) {
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mDeviceRepository = DeviceRepository.getInstance();
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}
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if (mAccelerometerSensor == null) {
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mAccelerometerSensor = AccelerometerSensor.getInstance();
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}
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if (mDeviceList == null) {
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mDeviceRepository = DeviceRepository.getInstance();
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mDeviceList = mDeviceRepository.getConnectedDeviceList();
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}
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if (mAlarmHistoryList == null) {
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mAlarmHistoryList = mDeviceRepository.getAlarmHistoryDeviceList();
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}
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if (mStartAlarmRecording == null) {
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mStartAlarmRecording = mDeviceRepository.getStartAlarmRecording();
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}
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if (mAccelerometerAlarmDetected == null) {
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mAccelerometerAlarmDetected = mAccelerometerSensor.getAccelerometerAlarmDetected();
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initGesamtBE();
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mMovementDetected.setValue(false);
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functionCallCount = 0;
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meanValue = 0f;
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offsetValue = 0.1f;
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thresholdValue = 0.15f;
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startMeasuring = false;
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}
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public void initGesamtBE() {
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Gesamt_be = new ArrayList<>(arraySize);
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for (int i = 0; i < arraySize; i++) {
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Gesamt_be.add(0f);
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}
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}
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public void addValueToGesamtBE(float newValue) {
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mAccelerometerSensor.addValueToGesamtBE(newValue);
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if (Gesamt_be.size() == arraySize) {
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Gesamt_be.remove(Gesamt_be.size() -1);
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}
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Gesamt_be.add(0, newValue);
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functionCallCount++;
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}
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public void meanValueCalculation() {
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mAccelerometerSensor.meanValueCalculation();
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for (float element : Gesamt_be) {
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meanValue += Math.abs(element);
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}
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meanValue = meanValue/arraySize;
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}
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public void calibrateAccelerometerSensor() {
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mAccelerometerSensor.calibrateAccelerometerSensor();
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if (functionCallCount <= arraySize) {
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offsetValue = meanValue;
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}
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else {
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startMeasuring = true;
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}
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}
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public void checkAlarmCondition() {
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mAccelerometerSensor.checkAlarmCondition();
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if (meanValue > (thresholdValue + offsetValue) && startMeasuring && !mMovementDetected.getValue()) {
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mMovementDetected.setValue(true);
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}
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else if (meanValue < (thresholdValue + offsetValue) && mMovementDetected.getValue()){
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mMovementDetected.setValue(false);
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}
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}
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public LiveData<Boolean> getAccelerometerAlarmDetected() {
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return mAccelerometerAlarmDetected;
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public LiveData<Boolean> getMovementDetectedValue() {
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return mMovementDetected;
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}
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@Override
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