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Code Pull Requests Actions Releases 2 Activity

Record idle location to support zero speed when idle

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This commit is contained in:
Jimmy Shih
2013-07-12 13:21:19 -07:00
parent 3f99263b5a
commit a6e9412a69
2 changed files with 40 additions and 27 deletions
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MyTracks/src/com/google/android/apps/mytracks/services/TrackRecordingService.java
+23 -8
View File
@@ -93,6 +93,11 @@ public class TrackRecordingService extends Service {
public static final double PAUSE_LATITUDE = 100.0;
public static final double RESUME_LATITUDE = 200.0;
/**
* Anything faster than that (in meters per second) will be considered moving.
*/
public static final double MAX_NO_MOVEMENT_SPEED = 0.224;
private static final String TAG = TrackRecordingService.class.getSimpleName();
private static final long ONE_SECOND = 1000; // in milliseconds
private static final long ONE_MINUTE = 60 * ONE_SECOND; // in milliseconds
@@ -127,6 +132,7 @@ public class TrackRecordingService extends Service {
private SensorManager sensorManager;
private Location lastLocation;
private boolean currentSegmentHasLocation;
private boolean isIdle; // true if idle
private ServiceBinder binder = new ServiceBinder(this);
@@ -704,6 +710,7 @@ public class TrackRecordingService extends Service {
sensorManager = SensorManagerFactory.getSystemSensorManager(this);
lastLocation = null;
currentSegmentHasLocation = false;
isIdle = false;
startGps();
sendTrackBroadcast(trackStarted ? R.string.track_started_broadcast_action
@@ -932,10 +939,9 @@ public class TrackRecordingService extends Service {
}
double distanceToLastTrackLocation = location.distanceTo(lastValidTrackPoint);
if (distanceToLastTrackLocation < recordingDistanceInterval && sensorDataSet == null) {
Log.d(TAG, "Not recording location due to recording distance interval.");
} else if (distanceToLastTrackLocation > maxRecordingDistance) {
if (distanceToLastTrackLocation > maxRecordingDistance) {
insertLocation(track, lastLocation, lastValidTrackPoint);
Location pause = new Location(LocationManager.GPS_PROVIDER);
pause.setLongitude(0);
pause.setLatitude(PAUSE_LATITUDE);
@@ -943,13 +949,22 @@ public class TrackRecordingService extends Service {
insertLocation(track, pause, null);
insertLocation(track, location, null);
} else {
/*
* (distanceToLastTrackLocation >= minRecordingDistance ||
* hasSensorData) && distanceToLastTrackLocation <= maxRecordingDistance
*/
isIdle = false;
} else if (sensorDataSet != null
|| distanceToLastTrackLocation >= recordingDistanceInterval) {
insertLocation(track, lastLocation, lastValidTrackPoint);
insertLocation(track, location, null);
isIdle = false;
} else if (!isIdle && location.hasSpeed() && location.getSpeed() < MAX_NO_MOVEMENT_SPEED) {
insertLocation(track, lastLocation, lastValidTrackPoint);
insertLocation(track, location, null);
isIdle = true;
} else if (isIdle && location.hasSpeed() && location.getSpeed() >= MAX_NO_MOVEMENT_SPEED) {
insertLocation(track, lastLocation, lastValidTrackPoint);
insertLocation(track, location, null);
isIdle = false;
} else {
Log.d(TAG, "Not recording location, idle");
}
lastLocation = location;
} catch (Error e) {
MyTracks/src/com/google/android/apps/mytracks/stats/TripStatisticsUpdater.java
+17 -19
View File
@@ -17,8 +17,9 @@
package com.google.android.apps.mytracks.stats;
import static com.google.android.apps.mytracks.Constants.TAG;
import static com.google.android.apps.mytracks.services.TrackRecordingService.MAX_NO_MOVEMENT_SPEED;
import static com.google.android.apps.mytracks.services.TrackRecordingService.PAUSE_LATITUDE;
import com.google.android.apps.mytracks.services.TrackRecordingService;
import com.google.android.apps.mytracks.util.LocationUtils;
import com.google.common.annotations.VisibleForTesting;
@@ -66,11 +67,6 @@ public class TripStatisticsUpdater {
@VisibleForTesting
static final int SPEED_SMOOTHING_FACTOR = 25;
/**
* Anything faster than that (in meters per second) will be considered moving.
*/
private static final double MAX_NO_MOVEMENT_SPEED = 0.224;
/**
* Ignore any acceleration faster than this. Will ignore any speeds that imply
* acceleration greater than 2g's 2g = 19.6 m/s^2 = 0.0002 m/ms^2 = 0.02
@@ -142,7 +138,7 @@ public class TripStatisticsUpdater {
if (!LocationUtils.isValidLocation(location)) {
// Either pause or resume marker
if (location.getLatitude() == TrackRecordingService.PAUSE_LATITUDE) {
if (location.getLatitude() == PAUSE_LATITUDE) {
if (lastLocation != null && lastMovingLocation != null
&& lastLocation != lastMovingLocation) {
currentSegment.addTotalDistance(lastMovingLocation.distanceTo(lastLocation));
@@ -173,11 +169,11 @@ public class TripStatisticsUpdater {
}
double movingDistance = lastMovingLocation.distanceTo(location);
if (movingDistance < minRecordingDistance) {
if (!location.hasSpeed() || location.getSpeed() < MAX_NO_MOVEMENT_SPEED) {
lastLocation = location;
return;
}
if (movingDistance < minRecordingDistance
&& (!location.hasSpeed() || location.getSpeed() < MAX_NO_MOVEMENT_SPEED)) {
speedBuffer.reset();
lastLocation = location;
return;
}
long movingTime = location.getTime() - lastLocation.getTime();
if (movingTime < 0) {
@@ -203,7 +199,7 @@ public class TripStatisticsUpdater {
updateSpeed(
location.getTime(), location.getSpeed(), lastLocation.getTime(), lastLocation.getSpeed());
}
lastLocation = location;
lastMovingLocation = location;
}
@@ -231,13 +227,15 @@ public class TripStatisticsUpdater {
*/
@VisibleForTesting
void updateSpeed(long time, double speed, long lastLocationTime, double lastLocationSpeed) {
if (!isValidSpeed(time, speed, lastLocationTime, lastLocationSpeed)) {
if (speed < MAX_NO_MOVEMENT_SPEED) {
speedBuffer.reset();
} else if (isValidSpeed(time, speed, lastLocationTime, lastLocationSpeed)) {
speedBuffer.setNext(speed);
if (speed > currentSegment.getMaxSpeed()) {
currentSegment.setMaxSpeed(speed);
}
} else {
Log.d(TAG, "Invalid speed. speed: " + speed + " lastLocationSpeed: " + lastLocationSpeed);
return;
}
speedBuffer.setNext(speed);
if (speed > currentSegment.getMaxSpeed()) {
currentSegment.setMaxSpeed(speed);
}
}