import?java.io.*;
import?java.util.*;
import?javax.comm.*;
import?java.util.ArrayList;
import?java.sql.*;


public?class?SimpleRead?implements?Runnable?SerialPortEventListener?{
????static?CommPortIdentifier?portId;
????static?Enumeration	??????portList;
????InputStream		??????inputStream;
????SerialPort		??????serialPort;
????Thread		??????readThread;
????SensorNode?sn;
	int?flag;
	int?id;
	String??i;
	static?Statement?stmt;
	
	

	static?double?tmaxhmax;

????public?static?void?main（String[]?args）?{
????boolean		??????portFound?=?false;
????String		??????defaultPort?=?“COM1“;

?	if?（args.length?>?0）?{
	????defaultPort?=?args[0];
	}?
	

	portList?=?CommPortIdentifier.getPortIdentifiers（）;

	while?（portList.hasMoreElements（））?{
	????portId?=?（CommPortIdentifier）?portList.nextElement（）;
	????if?（portId.getPortType（）?==?CommPortIdentifier.PORT_SERIAL）?{
		if?（portId.getName（）.equals（defaultPort））?{
		????System.out.println（“Found?port:?“+defaultPort）;
		????portFound?=?true;
		????SimpleRead?reader?=?new?SimpleRead（）;
		}?
	????}?
	}?
	if?（!portFound）?{
	????System.out.println（“port?“?+?defaultPort?+?“?not?found.“）;
	}?
?	
????}?

????
????public?SimpleRead（）?{
????	flag=0;
????	sn=new?SensorNode（）;
		try?{
		????serialPort?=?（SerialPort）?portId.open（“SimpleReadApp“?2000）;
		}?catch?（PortInUseException?e）?{}
	
		try?{
		????inputStream?=?serialPort.getInputStream（）;
		}?catch?（IOException?e）?{}
	
		try?{
		????serialPort.addEventListener（this）;
		}?catch?（TooManyListenersException?e）?{}
	
		serialPort.notifyondataavailable（true）;
	
		try?{
		????serialPort.setSerialPortParams（9600?SerialPort.DATABITS_8?
						???SerialPort.STOPBITS_1?
						???SerialPort.PARITY_NONE）;
		}?catch?（UnsupportedCommOperationException?e）?{}
	
		readThread?=?new?Thread（this）;
	
		readThread.start（）;
	}

???
????public?void?run（）?{
		try?{
		????Thread.sleep（20000）;
		}?catch?（InterruptedException?e）?{}
????}?

????
????public?void?serialEvent（SerialPortEvent?event）?{
	switch?（event.getEventType（））?{

	case?SerialPortEvent.BI:

	case?SerialPortEvent.OE:

	case?SerialPortEvent.FE:

	case?SerialPortEvent.PE:

	case?SerialPortEvent.CD:

	case?SerialPortEvent.CTS:

	case?SerialPortEvent.DSR:

	case?SerialPortEvent.RI:

	case?SerialPortEvent.OUTPUT_BUFFER_EMPTY:
	????break;

	case?SerialPortEvent.DATA_AVAILABLE:
	????byte[]?readBuffer?=?new?byte[20];
	????String?ts=new?String（）;
		
	????try?{
		while?（inputStream.available（）?>?0）?{
		????int?numBytes?=?inputStream.read（readBuffer）;
		????ts=ts+toHex（readBuffernumBytes）;
		????
		?}
		?if（flag==0）{
		?	if（ts.startsWith（“37“））{
		?		flag=1;
		?		sn.clearAll（）;
		?		sn.setType（swap（ts.sub