uwcse.location.objects.cricket
Class CricketDriver

java.lang.Object
  |
  +--com.intel.research.rain.Service
        |
        +--uwcse.location.LocationService
              |
              +--uwcse.location.FusionClientService
                    |
                    +--uwcse.location.objects.SensorDriver
                          |
                          +--uwcse.location.objects.cricket.CricketDriver

All Implemented Interfaces:

MessageHandler

public class CricketDriver

extends SensorDriver

A CricketDriver interacts with receiver hardware of the Cricket indoor location system from MIT and generates LinearDistanceMeasurements.

Version:

$Revision: 1.2 $

Author:

Jeffrey Hightower

See Also:

LinearDistanceMeasurement

Nested Class Summary

 

Nested classes inherited from class uwcse.location.LocationService

LocationService.RediscoverServices

 

Field Summary
static int	BEACON_OFFSET_BODHI
static int	CLOCK_FREQ_HZ
protected  String	m_cricketName
protected  ProducerConsumerQueue	m_packetQueue
protected  CricketDriver.CricketPacketThread	m_packetThread
protected  javax.comm.SerialPort	m_serialPort
protected  CricketSerialPortThread	m_serialPortThread
static double	SPEED_OF_SOUND

 

Fields inherited from class uwcse.location.objects.SensorDriver

m_measurementSinkServiceIDSet, SINK_DISCOVERY_QUERY

 

Fields inherited from class uwcse.location.FusionClientService

FUSION_DISCOVERY_QUERY, m_fusionServiceIDSet

 

Fields inherited from class uwcse.location.LocationService

CONFIG_FILENAME, MESSAGE_ELEMENT, MESSAGE_EXTENSION, RPC_ELEMENT, RPC_EXCEPTION_ELEMENT, RPC_EXTENSION, RPC_RESULT_ELEMENT

 

Constructor Summary

CricketDriver(String portName, String cricketName)

 

Method Summary
static double	bodhisToMeters(double bodhis)           This method converts "bodhis", the internal distance measurement units of the crickets to meters.
protected  void	closeSerialPort()           Close serial port and remove the event listener.
static void	main(String[] argv)           Run the CricketDriver.
protected  void	openSerialPort(String portName)           Open the specified serial port at the given baud rate.
protected static void	printUsageAndExit()           Show the program argument usage and then exit.
protected  void	withdraw()           Overridden to close the serial port if necessary before withdrawing from Rain.

 

Methods inherited from class uwcse.location.objects.SensorDriver

sendMeasurement

 

Methods inherited from class uwcse.location.FusionClientService

callFusionServiceRpc, getFusionServiceIDSet

 

Methods inherited from class uwcse.location.LocationService

addObject, callLocationRpc, correctedTimeMillis, getObject, getSysclockError, handleTerminalCommand, multicastLocationMsg, multicastLocationMsgs, processLocationMsg, processLocationRpc, runTerminalCommandLoop, sendLocationMsg, sendLocationMsgs, setDescription

 

Methods inherited from class com.intel.research.rain.Service

getDaemon, getDispatcher, getServiceID, process, receive, setDaemon

 

Methods inherited from class java.lang.Object

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

 

Field Detail

CLOCK_FREQ_HZ

public static final int CLOCK_FREQ_HZ

BEACON_OFFSET_BODHI

public static final int BEACON_OFFSET_BODHI

SPEED_OF_SOUND

public static final double SPEED_OF_SOUND

m_serialPortThread

protected CricketSerialPortThread m_serialPortThread

m_serialPort

protected javax.comm.SerialPort m_serialPort

m_cricketName

protected String m_cricketName

m_packetThread

protected CricketDriver.CricketPacketThread m_packetThread

m_packetQueue

protected ProducerConsumerQueue m_packetQueue

CricketDriver

public CricketDriver(String portName,
                     String cricketName)
              throws RainException,
                     LocationException,
                     IOException

Throws:

RainException

LocationException

IOException

openSerialPort

protected void openSerialPort(String portName)
                       throws javax.comm.NoSuchPortException,
                              javax.comm.PortInUseException,
                              IOException,
                              javax.comm.UnsupportedCommOperationException,
                              TooManyListenersException

Open the specified serial port at the given baud rate.

Throws:

javax.comm.NoSuchPortException

javax.comm.PortInUseException

IOException

javax.comm.UnsupportedCommOperationException

TooManyListenersException

closeSerialPort

protected void closeSerialPort()

Close serial port and remove the event listener.

bodhisToMeters

public static double bodhisToMeters(double bodhis)

This method converts "bodhis", the internal distance measurement units of the crickets to meters. Bodhis are nonstandard units derived from processor the clock speed of the crickets and the speed of sound.

withdraw

protected void withdraw()

Overridden to close the serial port if necessary before withdrawing from Rain.

Overrides:

withdraw in class SensorDriver

printUsageAndExit

protected static void printUsageAndExit()

Show the program argument usage and then exit.

main

public static void main(String[] argv)

Run the CricketDriver.