Package com.irurueta.navigation.indoor.position

Class LinearRssiPositionEstimator2D

java.lang.Object

com.irurueta.navigation.indoor.position.PositionEstimator<com.irurueta.geometry.Point2D,RssiReading<? extends RadioSource>,RssiPositionEstimatorListener<com.irurueta.geometry.Point2D>>

com.irurueta.navigation.indoor.position.RssiPositionEstimator<com.irurueta.geometry.Point2D>

com.irurueta.navigation.indoor.position.LinearRssiPositionEstimator<com.irurueta.geometry.Point2D>

com.irurueta.navigation.indoor.position.LinearRssiPositionEstimator2D

public class LinearRssiPositionEstimator2D
extends LinearRssiPositionEstimator<com.irurueta.geometry.Point2D>

Linearly estimates 2D position using located radio sources and their RSSI readings at unknown locations. These kind of estimators can be used to determine the 2D position of a given device by getting RSSI readings at an unknown location of different radio sources whose locations are known.

Field Summary

Fields inherited from class com.irurueta.navigation.indoor.position.LinearRssiPositionEstimator

DEFAULT_USE_HOMOGENEOUS_LINEAR_SOLVER, homogeneousTrilaterationSolver, inhomogeneousTrilaterationSolver, laterationSolverListener, useHomogeneousLinearSolver

Fields inherited from class com.irurueta.navigation.indoor.position.PositionEstimator

estimatedPositionCoordinates, fingerprint, listener, sources

Constructor Summary

Constructors

Constructor	Description
LinearRssiPositionEstimator2D()	Constructor.
LinearRssiPositionEstimator2D(Fingerprint<? extends RadioSource,? extends RssiReading<? extends RadioSource>> fingerprint)	Constructor.
LinearRssiPositionEstimator2D(Fingerprint<? extends RadioSource,? extends RssiReading<? extends RadioSource>> fingerprint, RssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)	Constructor.
LinearRssiPositionEstimator2D(RssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)	Constructor.
LinearRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources)	Constructor.
LinearRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources, Fingerprint<? extends RadioSource,? extends RssiReading<? extends RadioSource>> fingerprint)	Constructor.
LinearRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources, Fingerprint<? extends RadioSource,? extends RssiReading<? extends RadioSource>> fingerprint, RssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)	Constructor.
LinearRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources, RssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)	Constructor.

Method Summary

Modifier and Type	Method	Description
com.irurueta.geometry.Point2D	getEstimatedPosition()	Gets estimated position.
private void	initialize()	Initializes lateration solver.
protected void	setPositionsAndDistances(List<com.irurueta.geometry.Point2D> positions, List<Double> distances)	Sets positions and distances on internal lateration solver.

Methods inherited from class com.irurueta.navigation.indoor.position.LinearRssiPositionEstimator

estimate, getDistances, getMinRequiredSources, getPositions, internalSetFingerprint, internalSetSources, isHomogeneousLinearSolverUsed, isLocked, isReady, setHomogeneousLinearSolverUsed

Methods inherited from class com.irurueta.navigation.indoor.position.PositionEstimator

getEstimatedPosition, getEstimatedPositionCoordinates, getFingerprint, getListener, getSources, setFingerprint, setListener, setSources

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LinearRssiPositionEstimator2D

public LinearRssiPositionEstimator2D()

Constructor.

LinearRssiPositionEstimator2D

public LinearRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources)

Constructor.

Parameters:

sources - located radio sources used for lateration.

Throws:

IllegalArgumentException - if provided sources is null or the number of provided sources is less than the required minimum.

LinearRssiPositionEstimator2D

public LinearRssiPositionEstimator2D(Fingerprint<? extends RadioSource,? extends RssiReading<? extends RadioSource>> fingerprint)

Constructor.

Parameters:

fingerprint - fingerprint containing RSSI readings at an unknown location for provided located radio sources.

Throws:

IllegalArgumentException - if provided fingerprint is null.

LinearRssiPositionEstimator2D

public LinearRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources,
 Fingerprint<? extends RadioSource,? extends RssiReading<? extends RadioSource>> fingerprint)

Constructor.

Parameters:

sources - located radio sources used for lateration.

fingerprint - fingerprint containing RSSI readings at an unknown location for provided located radio sources.

Throws:

IllegalArgumentException - if either provided sources or fingerprint is null or the number of provided sources is less than the required minimum.

LinearRssiPositionEstimator2D

public LinearRssiPositionEstimator2D(RssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)

Constructor.

Parameters:

listener - listener in charge of handling events.

LinearRssiPositionEstimator2D

public LinearRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources,
 RssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)

Constructor.

Parameters:

sources - located radio sources used for lateration.

listener - listener in charge of handling events.

Throws:

IllegalArgumentException - if provided sources is null or the number of provided sources is less than the required minimum.

LinearRssiPositionEstimator2D

public LinearRssiPositionEstimator2D(Fingerprint<? extends RadioSource,? extends RssiReading<? extends RadioSource>> fingerprint,
 RssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)

Constructor.

Parameters:

fingerprint - fingerprint containing RSSI readings at an unknown location for provided location radio sources.

listener - listener in charge of handling events.

Throws:

IllegalArgumentException - if provided fingerprint is null.

LinearRssiPositionEstimator2D

public LinearRssiPositionEstimator2D(List<? extends RadioSourceLocated<com.irurueta.geometry.Point2D>> sources,
 Fingerprint<? extends RadioSource,? extends RssiReading<? extends RadioSource>> fingerprint,
 RssiPositionEstimatorListener<com.irurueta.geometry.Point2D> listener)

Constructor.

Parameters:

sources - located radio sources used for lateration.

fingerprint - fingerprint containing RSSI readings at an unknown location for provided located radio sources.

listener - listener in charge of handling events.

Throws:

IllegalArgumentException - if either provided sources or fingerprint is null or the number of provided sources is less than the required minimum.

Method Details

getEstimatedPosition

public com.irurueta.geometry.Point2D getEstimatedPosition()

Gets estimated position.

Specified by:

getEstimatedPosition in class PositionEstimator<com.irurueta.geometry.Point2D,RssiReading<? extends RadioSource>,RssiPositionEstimatorListener<com.irurueta.geometry.Point2D>>

Returns:

estimated position.

setPositionsAndDistances

protected void setPositionsAndDistances(List<com.irurueta.geometry.Point2D> positions,
 List<Double> distances)

Sets positions and distances on internal lateration solver.

Specified by:

setPositionsAndDistances in class LinearRssiPositionEstimator<com.irurueta.geometry.Point2D>

Parameters:

positions - positions to be set.

distances - distances to be set.

Throws:

IllegalArgumentException - if something fails.

initialize

private void initialize()

Initializes lateration solver.