串口:
串行接口简称串口,也称串行通信接口或串行通讯接口(通常指COM接口),是采用串行通信方式的扩展接口。串行接口 (Serial Interface) 是指数据一位一位地顺序传送,其特点是通信线路简单,只要一对传输线就可以实现双向通信(可以直接利用电话线作为传输线),从而大大降低了成本,特别适用于远距离通信,但传送速度较慢。
AIS接收机:
船舶自动识别系统,是指一种应用于船和岸、船和船之间的海事安全与通信的新型助航系统。常由VHF通信机、GPS定位仪和与船载显示器及传感器等相连接的通信控制器组成,能自动交换船位、航速、航向、船名、呼号等重要信息。装在船上的AIS在向外发送这些信息的同时,同样接收VHF覆盖范围内其他船舶的信息,从而实现了自动应答。此外,作为一种开放式数据传输系统,它可与雷达、ARPA、ECDIS、VTS等终端设备和INTERNET实现连接,构成海上交管和监视网络,是不用雷达探测也能获得交通信息的有效手段,可以有效减少船舶碰撞事故。
GitHub源码:https://github.com/Phoenixsmf/AIS
java实现串口通信:
基于java语言实现 对AIS接收机的数据解析,java代码:
package com.yang.serialport.manager;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.TooManyListenersException;
import com.yang.serialport.utils.ArrayUtils;
import com.yang.serialport.utils.ShowUtils;
import gnu.io.CommPort;
import gnu.io.CommPortIdentifier;
import gnu.io.NoSuchPortException;
import gnu.io.PortInUseException;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;
import gnu.io.UnsupportedCommOperationException;
/**
* 串口管理
*
* @author SMF
*/
@SuppressWarnings("all")
public class SerialPortManager {
/**
* 查找所有可用端口
*
* @return 可用端口名称列表
*/
public static final ArrayList findPorts() {
// 获得当前所有可用串口
Enumeration portList = CommPortIdentifier.getPortIdentifiers();
ArrayList portNameList = new ArrayList();
// 将可用串口名添加到List并返回该List
while (portList.hasMoreElements()) {
String portName = portList.nextElement().getName();
portNameList.add(portName);
}
return portNameList;
}
/**
* 打开串口
*
* @param portName
* 端口名称
* @param baudrate
* 波特率
* @return 串口对象
* @throws PortInUseException
* 串口已被占用
*/
public static final SerialPort openPort(String portName, int baudrate) throws PortInUseException {
try {
// 通过端口名识别端口
CommPortIdentifier portIdentifier = CommPortIdentifier.getPortIdentifier(portName);
// 打开端口,并给端口名字和一个timeout(打开操作的超时时间)
CommPort commPort = portIdentifier.open(portName, 2000);
// 判断是不是串口
if (commPort instanceof SerialPort) {
SerialPort serialPort = (SerialPort) commPort;
try {
// 设置一下串口的波特率等参数
// 数据位:8
// 停止位:1
// 校验位:None
serialPort.setSerialPortParams(baudrate, SerialPort.DATABITS_8, SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);
} catch (UnsupportedCommOperationException e) {
e.printStackTrace();
}
return serialPort;
}
} catch (NoSuchPortException e1) {
e1.printStackTrace();
}
return null;
}
/**
* 关闭串口
*
* @param serialport
* 待关闭的串口对象
*/
public static void closePort(SerialPort serialPort) {
if (serialPort != null) {
serialPort.close();
}
}
/**
* 往串口发送数据
*
* @param serialPort
* 串口对象
* @param order
* 待发送数据
*/
public static void sendToPort(SerialPort serialPort, byte[] order) {
OutputStream out = null;
try {
out = serialPort.getOutputStream();
out.write(order);
out.flush();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (out != null) {
out.close();
out = null;
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 从串口读取数据
*
* @param serialPort
* 当前已建立连接的SerialPort对象
* @return 读取到的数据
*/
public static byte[] readFromPort(SerialPort serialPort) {
InputStream in = null;
byte[] bytes = {};
try {
in = serialPort.getInputStream();
// 缓冲区大小为一个字节
byte[] readBuffer = new byte[1];
int bytesNum = in.read(readBuffer);
while (bytesNum > 0) {
bytes = ArrayUtils.concat(bytes, readBuffer);
bytesNum = in.read(readBuffer);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (in != null) {
in.close();
in = null;
}
} catch (IOException e) {
e.printStackTrace();
}
}
return bytes;
}
/**
* 添加监听器
*
* @param port
* 串口对象
* @param listener
* 串口存在有效数据监听
*/
public static void addListener(SerialPort serialPort, DataAvailableListener listener) {
try {
// 给串口添加监听器
serialPort.addEventListener(new SerialPortListener(listener));
// 设置当有数据到达时唤醒监听接收线程
serialPort.notifyOnDataAvailable(true);
// 设置当通信中断时唤醒中断线程
serialPort.notifyOnBreakInterrupt(true);
} catch (TooManyListenersException e) {
e.printStackTrace();
}
}
/**
* 串口监听
*/
public static class SerialPortListener implements SerialPortEventListener {
private DataAvailableListener mDataAvailableListener;
public SerialPortListener(DataAvailableListener mDataAvailableListener) {
this.mDataAvailableListener = mDataAvailableListener;
}
public void serialEvent(SerialPortEvent serialPortEvent) {
switch (serialPortEvent.getEventType()) {
case SerialPortEvent.DATA_AVAILABLE: // 1.串口存在有效数据
if (mDataAvailableListener != null) {
mDataAvailableListener.dataAvailable();
}
break;
case SerialPortEvent.OUTPUT_BUFFER_EMPTY: // 2.输出缓冲区已清空
break;
case SerialPortEvent.CTS: // 3.清除待发送数据
break;
case SerialPortEvent.DSR: // 4.待发送数据准备好了
break;
case SerialPortEvent.RI: // 5.振铃指示
break;
case SerialPortEvent.CD: // 6.载波检测
break;
case SerialPortEvent.OE: // 7.溢位(溢出)错误
break;
case SerialPortEvent.PE: // 8.奇偶校验错误
break;
case SerialPortEvent.FE: // 9.帧错误
break;
case SerialPortEvent.BI: // 10.通讯中断
ShowUtils.errorMessage("与串口设备通讯中断");
break;
default:
break;
}
}
}
/**
* 串口存在有效数据监听
*/
public interface DataAvailableListener {
/**
* 串口存在有效数据
*/
void dataAvailable();
}
}
界面 代码:
package com.yang.serialport.ui;
import java.awt.Color;
import java.awt.GraphicsEnvironment;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.List;
import javax.swing.BorderFactory;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.event.PopupMenuEvent;
import javax.swing.event.PopupMenuListener;
import com.nms.ais.AIS_Analyse;
import com.yang.serialport.manager.SerialPortManager;
import com.yang.serialport.utils.ByteUtils;
import com.yang.serialport.utils.ShowUtils;
import com.yang.serialport.utils.SqlSessionFactoryInit;
import gnu.io.PortInUseException;
import gnu.io.SerialPort;
/**
* 主界面
*
* @author SMF
*/
@SuppressWarnings("all")
public class MainFrame extends JFrame {
// 程序界面宽度
public final int WIDTH = 1000;
// 程序界面高度
public final int HEIGHT = 390;
// 数据显示区
private JTextArea mDataView = new JTextArea();
private JScrollPane mScrollDataView = new JScrollPane(mDataView);
//有效数据显示区域
public static JTextArea mDataValiableView = new JTextArea();
public static JScrollPane mScrollDataViewValiable = new JScrollPane(mDataValiableView);
// 串口设置面板
private JPanel mSerialPortPanel = new JPanel();
private JLabel mSerialPortLabel = new JLabel("串口");
private JLabel mBaudrateLabel = new JLabel("波特率");
private JComboBox mCommChoice = new JComboBox();
private JComboBox mBaudrateChoice = new JComboBox();
private ButtonGroup mDataChoice = new ButtonGroup();
private JRadioButton mDataASCIIChoice = new JRadioButton("ASCII", true);
private JRadioButton mDataHexChoice = new JRadioButton("Hex");
// 操作面板
private JPanel mOperatePanel = new JPanel();
private JTextArea mDataInput = new JTextArea();
private JButton mSerialPortOperate = new JButton("打开串口");
private JButton mSendData = new JButton("发送数据");
// 串口列表
private List mCommList = null;
// 串口对象
private SerialPort mSerialport;
public MainFrame() {
try{
SqlSessionFactoryInit.creatSqlSessionFactory();
initView();
initComponents();
actionListener();
initData();
}catch(Exception e){
e.printStackTrace();
}
}
/**
* 初始化窗口
*/
private void initView() {
// 关闭程序
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
// 禁止窗口最大化
setResizable(false);
// 设置程序窗口居中显示
Point p = GraphicsEnvironment.getLocalGraphicsEnvironment().getCenterPoint();
setBounds(p.x - WIDTH / 2, p.y - HEIGHT / 2, WIDTH, HEIGHT);
this.setLayout(null);
setTitle("串口通信");
}
/**
* 初始化控件
*/
private void initComponents() {
// 数据显示
mDataView.setFocusable(false);
mScrollDataView.setBounds(10, 10, 505, 200);
add(mScrollDataView);
// 数据显示
mDataValiableView.setFocusable(false);
mScrollDataViewValiable.setBounds(520, 10, 400, 200);
add(mScrollDataViewValiable);
// 串口设置
mSerialPortPanel.setBorder(BorderFactory.createTitledBorder("串口设置"));
mSerialPortPanel.setBounds(10, 220, 170, 130);
mSerialPortPanel.setLayout(null);
add(mSerialPortPanel);
mSerialPortLabel.setForeground(Color.gray);
mSerialPortLabel.setBounds(10, 25, 40, 20);
mSerialPortPanel.add(mSerialPortLabel);
mCommChoice.setFocusable(false);
mCommChoice.setBounds(60, 25, 100, 20);
mSerialPortPanel.add(mCommChoice);
mBaudrateLabel.setForeground(Color.gray);
mBaudrateLabel.setBounds(10, 60, 40, 20);
mSerialPortPanel.add(mBaudrateLabel);
mBaudrateChoice.setFocusable(false);
mBaudrateChoice.setBounds(60, 60, 100, 20);
mSerialPortPanel.add(mBaudrateChoice);
mDataASCIIChoice.setBounds(20, 95, 55, 20);
mDataHexChoice.setBounds(95, 95, 55, 20);
mDataChoice.add(mDataASCIIChoice);
mDataChoice.add(mDataHexChoice);
mSerialPortPanel.add(mDataASCIIChoice);
mSerialPortPanel.add(mDataHexChoice);
// 操作
mOperatePanel.setBorder(BorderFactory.createTitledBorder("操作"));
mOperatePanel.setBounds(200, 220, 315, 130);
mOperatePanel.setLayout(null);
add(mOperatePanel);
mDataInput.setBounds(25, 25, 265, 50);
mDataInput.setLineWrap(true);
mDataInput.setWrapStyleWord(true);
mOperatePanel.add(mDataInput);
mSerialPortOperate.setFocusable(false);
mSerialPortOperate.setBounds(45, 95, 90, 20);
mOperatePanel.add(mSerialPortOperate);
mSendData.setFocusable(false);
mSendData.setBounds(180, 95, 90, 20);
mOperatePanel.add(mSendData);
}
/**
* 初始化数据
*/
private void initData() {
mCommList = SerialPortManager.findPorts();
// 检查是否有可用串口,有则加入选项中
if (mCommList == null || mCommList.size() < 1) {
ShowUtils.warningMessage("没有搜索到有效串口!");
} else {
for (String s : mCommList) {
mCommChoice.addItem(s);
}
}
mBaudrateChoice.addItem("9600");
mBaudrateChoice.addItem("19200");
mBaudrateChoice.addItem("38400");
mBaudrateChoice.addItem("57600");
mBaudrateChoice.addItem("115200");
}
/**
* 按钮监听事件
*/
private void actionListener() {
// 串口
mCommChoice.addPopupMenuListener(new PopupMenuListener() {
@Override
public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
mCommList = SerialPortManager.findPorts();
// 检查是否有可用串口,有则加入选项中
if (mCommList == null || mCommList.size() < 1) {
ShowUtils.warningMessage("没有搜索到有效串口!");
} else {
int index = mCommChoice.getSelectedIndex();
mCommChoice.removeAllItems();
for (String s : mCommList) {
mCommChoice.addItem(s);
}
mCommChoice.setSelectedIndex(index);
}
}
@Override
public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
// NO OP
}
@Override
public void popupMenuCanceled(PopupMenuEvent e) {
// NO OP
}
});
// 打开|关闭串口
mSerialPortOperate.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if ("打开串口".equals(mSerialPortOperate.getText()) && mSerialport == null) {
openSerialPort(e);
} else {
closeSerialPort(e);
}
}
});
// 发送数据
mSendData.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
sendData(e);
}
});
}
/**
* 打开串口
*
* @param evt
* 点击事件
*/
private void openSerialPort(java.awt.event.ActionEvent evt) {
// 获取串口名称
String commName = (String) mCommChoice.getSelectedItem();
// 获取波特率,默认为9600
int baudrate = 9600;
String bps = (String) mBaudrateChoice.getSelectedItem();
baudrate = Integer.parseInt(bps);
// 检查串口名称是否获取正确
if (commName == null || commName.equals("")) {
ShowUtils.warningMessage("没有搜索到有效串口!");
} else {
try {
mSerialport = SerialPortManager.openPort(commName, baudrate);
if (mSerialport != null) {
mDataView.setText("串口已打开" + "\r\n");
mSerialPortOperate.setText("关闭串口");
}
} catch (PortInUseException e) {
ShowUtils.warningMessage("串口已被占用!");
}
}
// 添加串口监听
SerialPortManager.addListener(mSerialport, new SerialPortManager.DataAvailableListener() {
@Override
public void dataAvailable() {
byte[] data = null;
try {
if (mSerialport == null) {
ShowUtils.errorMessage("串口对象为空,监听失败!");
System.out.print("串口对象为空,监听失败!");
} else {
// 读取串口数据
data = SerialPortManager.readFromPort(mSerialport);
//System.out.println(data.toString());
// 以字符串的形式接收数据
if (mDataASCIIChoice.isSelected()) {
mDataView.append(new String(data) + "\r\n");
AIS_Analyse.comport1_DataReceived(new String(data));
//System.out.println(new String(data) + "\r\n");
}
// 以十六进制的形式接收数据
if (mDataHexChoice.isSelected()) {
mDataView.append(ByteUtils.byteArrayToHexString(data) + "\r\n");
///System.out.println(ByteUtils.byteArrayToHexString(data));
}
}
} catch (Exception e) {
ShowUtils.errorMessage(e.toString());
e.printStackTrace();
// 发生读取错误时显示错误信息后退出系统
System.exit(0);
}
}
});
}
/**
* 关闭串口
*
* @param evt
* 点击事件
*/
private void closeSerialPort(java.awt.event.ActionEvent evt) {
SerialPortManager.closePort(mSerialport);
mDataView.setText("串口已关闭" + "\r\n");
mSerialPortOperate.setText("打开串口");
mSerialport = null;
}
/**
* 发送数据
*
* @param evt
* 点击事件
*/
private void sendData(java.awt.event.ActionEvent evt) {
// 待发送数据
String data = mDataInput.getText().toString();
if (mSerialport == null) {
ShowUtils.warningMessage("请先打开串口!");
return;
}
if ("".equals(data) || data == null) {
ShowUtils.warningMessage("请输入要发送的数据!");
return;
}
// 以字符串的形式发送数据
if (mDataASCIIChoice.isSelected()) {
SerialPortManager.sendToPort(mSerialport, data.getBytes());
}
// 以十六进制的形式发送数据
if (mDataHexChoice.isSelected()) {
SerialPortManager.sendToPort(mSerialport, ByteUtils.hexStr2Byte(data));
}
}
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new MainFrame().setVisible(true);
}
});
}
}
AIS数据解析 此处较为复杂:
package com.nms.ais;
import java.util.ArrayList;
import java.util.List;
import com.nms.dao.config.BoatMapper;
import com.nms.model.config.Boat;
import com.nms.service.config.BoatHistoryService;
import com.nms.service.config.BoatService;
import com.yang.serialport.manager.SerialPortManager;
import com.yang.serialport.ui.MainFrame;
import com.yang.serialport.utils.AISLog;
import com.yang.serialport.utils.MiscUtil;
import com.yang.serialport.utils.Msg;
import com.yang.serialport.utils.SqlSessionFactoryInit;
import gnu.io.SerialPort;
/**
* @author smf
* @description ais数据解析
* */
public class AIS_Analyse {
public String AIS_msg = null; // 触发一次串口事件接收到的AIS数据
public static int i = 0;
public int j = 0;
public int k = 0;
/**单一语句长度*/
public static int data_length = 0; // 单一语句长度
/**语句字符位置*/
public int chars_count = 0; // 语句字符位置
/**完整的一条AIS语句*/
public static char[] SingleDataBuffer = new char[82]; // 完整的一条AIS语句
/**一条AIS语句的解封装结果*/
public static char[] sum_binary = new char[372]; // 一条AIS语句的解封装结果
/**单一语句字符数*/
public static int data_count; // 单一语句字符数
/** AIS语句接收窗口显示的AIS语句计数*/
public static int newline_count = 0; // AIS语句接收窗口显示的AIS语句计数
/**事件顺序(语句排列顺序)标识*/
public static int event_count = 0; // 事件顺序(语句排列顺序)标识
/**用户船(查询目标)识别码*/
public String TargetMMSI = null; // 用户船(查询目标)识别码
/**用户船(查询目标)查询结果标识*/
public static int MMSI_enable = 0; // 用户船(查询目标)查询结果标识
/**语句类型识别码*/
public static int defi_m = 0; // 语句类型识别码
/**当前AIS信息包含的经度*/
public static double RecentLongitude; // 当前AIS信息包含的经度
public static double RecentLatitude; // 当前AIS信息包含的纬度
public static double RecentCourse; // 当前AIS信息包含的航向信息
public static double ShipLongitude; // 用户船经度
public static double ShipLatitude; // 用户船纬度
public static double BaseLongitude; // 基站经度
public static double BaseLatitude; // 基站纬度
public static BoatMapper boatMapper = SqlSessionFactoryInit.getContext().getBean(BoatMapper.class);
public static BoatService boatService = SqlSessionFactoryInit.getContext().getBean(BoatService.class);
public static BoatHistoryService boatHistoryService = SqlSessionFactoryInit.getContext().getBean(BoatHistoryService.class);
public double PI = Math.PI; // 3.14159265358979323846
public double R = 6371.393; // 地球半径
public double Distance; // 两点间距离
/**天线转向的目的位置*/
public String DestinationAngle = null; // 天线转向的目的位置
public static int basechange; // 基站切换指令标识
public static int count_enable; // 指向角度计算控制指令标识 : 1.计算开始; 0.计算关闭
public static int angle_send; // 指向角度发送指令标识 : 1.发送开始; 0.发送关闭
// public bool bOpenPort; //1.串口2关闭; 0.串口2打开
public Boolean bCountDistanceAUTO; // 指向角计算使能信号: 1.计算开始; 0.计算关闭
public Boolean bChangeBase; // 基站选择使能信号: 1.选择船载移动基站; 0.选择岸基基站
public Boolean bAngleSendAUTO; // 目的位置自动发送使能型号: 1.发送开始; 0.发送关闭
private static List _buff = new ArrayList();
private static Boolean _recstatu = false; // 是否处于一个正在接收数据包的状态
/**数据域起始位*/
public static int data_start; // 数据域起始位
/**数据域终止位*/
public static int data_end; // 数据域终止位
/** 语句类型识别码*/
public static int sen_f; // 语句类型识别码
public static void Data_analyze_m123(String AISMessage ) // 消息1、2、3数据解析
{
int i=0;
Boat boat = new Boat();
AISMessage += "\r\n\r\n";
AISMessage += "解析后的数据如下:\r\n\r\n";
// 二进制数据向有效数据转换
char data_tr_bin; // 二进制数据中间变量初始化
int data_tr_valid = 0; // 有效数据中间变量初始化
int count_s = 0; // 数据位起始值
int count_e = 0; // 数据位终止值
int digit_num; // 数据位数
// 提取消息识别码
int message_identifier; // 消息识别码
digit_num = 6; // 消息识别码的位数为6位
count_e = count_s + digit_num - 1; // 计算数据终止位
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
message_identifier = data_tr_valid;
switch (message_identifier) {
case 1: {
AISMessage += "消息识别码: ";
AISMessage += String.valueOf(message_identifier);
AISMessage += " 即 消息类型为“定时的船位报告(A类船载移动设备)”。\r\n";
break;
}
case 2: {
AISMessage += "消息识别码: ";
AISMessage += String.valueOf(message_identifier);
AISMessage += " 即 消息类型为“定时的船位报告(A类船载移动设备)”。\r\n";
break;
}
case 3: {
AISMessage += "消息识别码: ";
AISMessage += String.valueOf(message_identifier);
AISMessage += " 即 消息类型为“特别船位报告,对询问的回复(A类船载移动设备)”。\r\n";
break;
}
}
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取消息识别码)
// 提取转发指示符
int transpond_indicate; // 转发指示符
digit_num = 2; // 转发指示符的位数为2位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
transpond_indicate = data_tr_valid;
AISMessage += "转发指示符: ";
AISMessage += String.valueOf(transpond_indicate);
AISMessage += " 即 该条消息被转发的次数为:";
AISMessage += String.valueOf(transpond_indicate);
AISMessage += " 次。\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取转发指示符)
// 提取用户识别码,即MMSI码
int MMSI; // 用户识别码
digit_num = 30; // 用户识别码,即MMSI码的位数为30位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
MMSI = data_tr_valid;
AISMessage += "用户识别码(即MMSI码): ";
AISMessage += String.valueOf(MMSI);
AISMessage += "\r\n";
//String MMSI_OUT = String.valueOf(MMSI); // 提取当前信息的MMSI码,用于船舶识别
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取用户识别码,即MMSI码)
// 提取航行状态
int navigation_status; // 航行状态
digit_num = 4; // 航行状态的位数为4位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
navigation_status = data_tr_valid;
AISMessage += "航行状态: ";
AISMessage += String.valueOf(navigation_status);
if (navigation_status == 15)
AISMessage += " 即 默认值(未定义)";
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取航行状态)
// 提取转向率ROT(AIS)
int ROT_AIS; // 转向率ROT(AIS)
digit_num = 8; // 转向率ROT(AIS)的位数为8位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
if (sum_binary[count_s] != '1') {
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
ROT_AIS = data_tr_valid;
AISMessage += "转向率ROT(AIS): ";
AISMessage += String.valueOf(ROT_AIS);
AISMessage += " 度/分钟";
AISMessage += "\r\n";
}
else if (sum_binary[count_s] == '1') {
// ("转向率是负数\n");
for (i = count_s + 1; i <= count_e; i++) {
if (sum_binary[i] == '0')
data_tr_bin = '1';
else
data_tr_bin = '0';
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
data_tr_valid = data_tr_valid + 1;
data_tr_valid = -data_tr_valid;
ROT_AIS = data_tr_valid;
AISMessage += "转向率ROT(AIS): ";
AISMessage += String.valueOf(ROT_AIS);
AISMessage += " 度/分钟";
if (ROT_AIS == -128)
AISMessage += " 即默认值(表示无法获得)";
AISMessage += "\r\n";
}
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取转向率ROT(AIS))
// 提取对地航速
double speed_over_ground; // 对地航速
digit_num = 10; // 对地航速的位数为10位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
speed_over_ground = (float) (data_tr_valid) / 10;
AISMessage += "对地航速: ";
AISMessage += String.valueOf(speed_over_ground);
boat.setSog(speed_over_ground+"kn");
AISMessage += " kn";
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取对地航速)
// 提取船位精确度
int position_accuracy; // 船位精确度
digit_num = 1; // 船位精确度的位数为1位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
position_accuracy = data_tr_valid;
AISMessage += "船位精确度: ";
AISMessage += String.valueOf(position_accuracy);
if (data_tr_valid == 1)
AISMessage += " 即 高精度(<10m,DGNSS接收机的差分模式)";
else if (data_tr_valid == 0)
AISMessage += " 即 低精度(>10m,GNSS接收机或其他电子定位装置的自主模式)";
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取船位精确度)
// 提取经度
double longitude; // 经度
digit_num = 28; // 经度的位数为28位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
int hour;
int minute;
double second;
if (sum_binary[count_s] != '1') {
// ("经度是正数,即东经\n");
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
longitude = (float) ((data_tr_valid) / 10000);
hour = (int) (data_tr_valid / 10000 / 60);
minute = (int) (longitude - hour * 60);
second = (longitude - hour * 60 - minute) * 60;
RecentLongitude = longitude / 60; // 将经度信息传递给全局变量,单位为度
AISMessage += "经度: ";
AISMessage += "东经 ";
AISMessage += String.valueOf(hour);
AISMessage += "度";
AISMessage += String.valueOf(minute);
AISMessage += "分";
AISMessage += String.valueOf(0.0000);
AISMessage += "秒";
AISMessage += "\r\n";
}
else if (sum_binary[count_s] == '1') {
// ("经度是负数,即西经\n");
for (i = count_s + 1; i <= count_e; i++) {
if (sum_binary[i] == '0')
data_tr_bin = '1';
else
data_tr_bin = '0';
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
data_tr_valid = data_tr_valid + 1; // 经度的绝对值
longitude = (float) ((data_tr_valid) / 10000);
hour = (int) (data_tr_valid / 10000 / 60);
minute = (int) (longitude - hour * 60);
second = (longitude - hour * 60 - minute) * 60;
longitude = -longitude; // 经度的真实值
RecentLongitude = longitude / 60; // 将经度信息传递给全局变量
AISMessage += "经度: ";
AISMessage += "西经 ";
AISMessage += String.valueOf(hour);
AISMessage += "度";
AISMessage += String.valueOf(minute);
AISMessage += "分";
AISMessage += String.valueOf(0.0000);
AISMessage += "秒";
AISMessage += "\r\n";
}
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取经度)
// 提取纬度
double latitude; // 纬度
digit_num = 27; // 纬度的位数为27位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
if (sum_binary[count_s] != '1') {
//// ("纬度是正数,即北纬\n");
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
latitude = (float) (data_tr_valid) / 10000;
hour = (int) (data_tr_valid / 10000 / 60);
minute = (int) (latitude - hour * 60);
second = (latitude - hour * 60 - minute) * 60;
RecentLatitude = latitude / 60; // 将当前纬度传递给全局变量
AISMessage += "纬度: ";
AISMessage += "北纬 ";
AISMessage += String.valueOf(hour);
AISMessage += "度";
AISMessage += String.valueOf(minute);
AISMessage += "分";
AISMessage += String.valueOf(0.0000);
AISMessage += "秒";
AISMessage += "\r\n";
}
else if (sum_binary[count_s] == '1') {
// ("纬度是负数,即南纬\n");
for (i = count_s + 1; i <= count_e; i++) {
if (sum_binary[i] == '0')
data_tr_bin = '1';
else
data_tr_bin = '0';
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
data_tr_valid = data_tr_valid + 1; // 纬度的绝对值
latitude = (float) (data_tr_valid) / 10000;
hour = (int) (data_tr_valid / 10000 / 60);
minute = (int) (latitude - hour * 60);
second = (latitude - hour * 60 - minute) * 60;
latitude = -latitude; // 纬度的真实值
RecentLatitude = latitude / 60; // 将当前纬度传递给全局变量
AISMessage += "纬度: ";
AISMessage += "南纬 ";
AISMessage += String.valueOf(hour);
AISMessage += "度";
AISMessage += String.valueOf(minute);
AISMessage += "分";
AISMessage += String.valueOf(0.0000);
AISMessage += "秒";
AISMessage += "\r\n";
}
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取纬度)
// 提取对地航向
double course_over_the_ground;
digit_num = 12; // 对地航向的位数为12位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
course_over_the_ground = (float) (data_tr_valid) / 10;
AISMessage += "对地航向: ";
AISMessage += String.valueOf(course_over_the_ground);
boat.setCog(course_over_the_ground+"度");
AISMessage += "度";
if (course_over_the_ground >= 360)
AISMessage += " 即 默认值(不可用)";
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取对地航向)
// 提取真航向
int true_course; // 真航向
digit_num = 9; // 真航向的位数为9位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
true_course = data_tr_valid;
AISMessage += "真航向: ";
AISMessage += String.valueOf(true_course);
AISMessage += "度";
if (true_course == 511)
AISMessage += " 即 默认值(不可用)";
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取真航向)
// 提取时间标记
int time_marker; // 时间标记
digit_num = 6; // 时间标记的位数为6位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
time_marker = data_tr_valid;
AISMessage += "时间标记: ";
AISMessage += "报告产生时的UTC秒: ";
AISMessage += String.valueOf(time_marker);
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取时间标记)
// 提取为地区性应用所保留
digit_num = 4; // 为地区性应用所保留的位数为4位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
AISMessage += "为地区性应用所保留: ";
AISMessage += String.valueOf(data_tr_valid);
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取为地区性应用所保留)
// 提取备用位
digit_num = 1; // 备用位的位数为1位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
AISMessage += "备用位: ";
AISMessage += String.valueOf(data_tr_valid);
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取备用位)
// 提取RAIM标志
int RAIM; // RAIM标志
digit_num = 1; // RAIM标志的位数为1位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
RAIM = data_tr_valid;
AISMessage += "RAIM标志: ";
AISMessage += String.valueOf(RAIM);
if (RAIM == 1)
AISMessage += " 即 RAIM使用";
else
AISMessage += " 即 RAIM未使用(默认)";
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// END(提取RAIM标志)
// 提取通信状态
// fprintf(w1,"%s","通信状态: ");
AISMessage += "通信状态: ";
if (message_identifier == 1 || message_identifier == 2) // 通信状态为SOTDMA
{
AISMessage += "SOTDMA通信状态";
AISMessage += "\r\n";
// 提取同步状态
int synchronization_status; // 同步状态
digit_num = 2; // 同步状态的位数为2位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
synchronization_status = data_tr_valid;
AISMessage += " 同步状态: ";
AISMessage += String.valueOf(synchronization_status);
if (synchronization_status == 0) {
AISMessage += " 即 直接获取UTC";
AISMessage += "\r\n";
} else if (synchronization_status == 1) {
AISMessage += " 即 间接获取UTC";
AISMessage += "\r\n";
} else if (synchronization_status == 2) {
AISMessage += " 即 台站同步于基地台";
AISMessage += "\r\n";
} else if (synchronization_status == 3) {
AISMessage += " 即 台站同步于另一个接受台数量最多的台站";
AISMessage += "\r\n";
}
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// 提取时隙超时
int TS_overtime; // 时隙超时
digit_num = 3; // 时隙超时的位数为3位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
TS_overtime = data_tr_valid;
AISMessage += " 时隙超时: ";
AISMessage += String.valueOf(TS_overtime);
if (TS_overtime == 0) {
AISMessage += " 即 这是该时隙最后一次传输";
AISMessage += "\r\n";
} else {
AISMessage += " 即 在时隙改变前将保留该时隙 ";
AISMessage += String.valueOf(TS_overtime);
AISMessage += " 帧";
AISMessage += "\r\n";
}
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// 提取子信息
int child_information; // 子信息
digit_num = 14; // 子信息的位数为14位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
AISMessage += " 子信息: ";
if (TS_overtime == 3 || TS_overtime == 5 || TS_overtime == 7) {
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
child_information = data_tr_valid;
AISMessage += " 本台当前接收到其他台站数量为:";
AISMessage += String.valueOf(child_information);
AISMessage += "\r\n";
}
else if (TS_overtime == 2 || TS_overtime == 4 || TS_overtime == 6) {
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
child_information = data_tr_valid;
AISMessage += " 用于该发射的时隙号为:";
AISMessage += String.valueOf(child_information);
AISMessage += "\r\n";
}
else if (TS_overtime == 1) {
int UTC_hour;
int UTC_min;
AISMessage += " UTC: ";
for (i = count_s; i <= count_s + 4; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_s + 4 - i));
}
UTC_hour = data_tr_valid;
data_tr_valid = 0;
AISMessage += String.valueOf(UTC_hour);
AISMessage += " 小时";
count_s = count_s + 5;
for (i = count_s; i <= count_s + 6; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_s + 6 - i));
}
UTC_min = data_tr_valid;
AISMessage += String.valueOf(UTC_min);
AISMessage += " 分";
AISMessage += "\r\n";
}
else if (TS_overtime == 0) {
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
child_information = data_tr_valid;
AISMessage += " 时隙偏移量为:";
AISMessage += String.valueOf(child_information);
AISMessage += "\r\n";
}
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
}
else if (message_identifier == 3) // 通信状态为ITDMA
{
AISMessage += "ITDMA通信状态";
AISMessage += "\r\n";
// 提取同步状态
int synchronization_status; // 同步状态
digit_num = 2; // 同步状态的位数为2位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
synchronization_status = data_tr_valid;
AISMessage += " 同步状态: ";
AISMessage += String.valueOf(synchronization_status);
if (synchronization_status == 0) {
AISMessage += " 即 直接获取UTC";
AISMessage += "\r\n";
} else if (synchronization_status == 1) {
AISMessage += " 即 间接获取UTC";
AISMessage += "\r\n";
} else if (synchronization_status == 2) {
AISMessage += " 即 台站同步于基地台";
AISMessage += "\r\n";
} else if (synchronization_status == 3) {
AISMessage += " 即 台站同步于另一个接受台数量最多的台站";
AISMessage += "\r\n";
}
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// 提取时隙增量
int TS_add; // 时隙增量
digit_num = 13; // 时隙增量的位数为13位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
TS_add = data_tr_valid;
AISMessage += " 时隙增量: ";
AISMessage += String.valueOf(TS_add);
if (TS_add == 0) {
AISMessage += " 即 不在进行进一步的传输";
AISMessage += "\r\n";
} else {
AISMessage += " 即 到下一个将要使用的时隙的偏移为:";
AISMessage += String.valueOf(TS_add);
AISMessage += "帧";
AISMessage += "\r\n";
}
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// 提取时隙数
int TS_num; // 时隙数
digit_num = 3; // 时隙数的位数为3位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
TS_num = data_tr_valid;
AISMessage += " 时隙数: ";
AISMessage += " 应分配的连续时隙的数量为:";
AISMessage += String.valueOf(TS_num);
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
// 提取保持标记
int maintain_marker; // 保持标记
digit_num = 1; // 保持标记的位数为1位
count_e = count_s + digit_num - 1; // 计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++) {
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int) (Math.pow(2, count_e - i));
}
maintain_marker = data_tr_valid;
AISMessage += " 保持标记: ";
AISMessage += String.valueOf(maintain_marker);
if (maintain_marker == 1)
AISMessage += " 即 时隙分配应多保留一帧";
AISMessage += "\r\n";
count_s = count_e + 1; // 提取完毕后,重置数据位起始值
}
AISLog.logInfo(AIS_Analyse.class, "Analysie123,"+"经度:"+RecentLongitude+",纬度:"+RecentLatitude+",mmsi:"+MMSI+",航速:"+boat.getCog()+",航向:"+boat.getSog());
System.out.println("经度:"+RecentLongitude+",纬度:"+RecentLatitude+",mmsi:"+MMSI);
boat.setLongitude(String.valueOf(RecentLongitude));
boat.setLatitude(String.valueOf(RecentLatitude));
boat.setMmsiId(String.valueOf(MMSI));
BoatData(boat);
System.out.println("AISMessage:"+AISMessage);
}
public void SendToRoll(double angle,SerialPort serialPort)
{
if(serialPort!=null)
{
String ctrPosition;
ctrPosition = "PX";
ctrPosition += String.valueOf(angle);
ctrPosition += "\n\r";
SerialPortManager.sendToPort(serialPort, ctrPosition.getBytes());
}
}
public double point_remove(double a, int point_num)
{
int k;
double b;
k = (int)(a * Math.pow(10, point_num));
b = k / (Math.pow(10, point_num));
return b;
}
public void PointAngleCount(String textBox12,String textBox13) //指向角计算函数
{
double ship_true_angle = RecentCourse; //对地航向
double base_angle; //基站(点B)相对于船(点A)的方位角
double base_angle_rad = 0; //基站(点B)相对于船(点A)的方位角的弧度值
double BaseToShip_rot_angle; //基站对于船首向的方位角,即天线的目的位置
double x, y;
String temp;
String temp1;
String temp_send;
String temp_send1;
double Base_Long = 0.0; //基站经度
double Base_Lat = 0.0; //基站纬度
double Ship_Long = point_remove((Math.PI/180*(ShipLongitude)), 8); //船舶经度,角度转换为弧度
double Ship_Lat = point_remove(Math.PI/180*(ShipLatitude), 8);
//double Ship_Lat = rad(90-RecentLatitude) ; //船舶相对于正北的纬度(90-纬度)
switch (basechange)
{
case 0:
{
if (textBox12 != "")
{
Base_Long = Double.parseDouble(textBox12);
}
else
{
Base_Long = 0.0;
textBox12 = "0";
}
Base_Long = rad(Base_Long); //岸基基站经度(单位为弧度)
if (textBox13 != "")
{
Base_Lat = Double.parseDouble(textBox13);
}
else
{
Base_Lat = 0.0;
textBox13 = "0";
}
Base_Lat = rad(Base_Lat); //岸基基站纬度(单位为弧度)
break;
}
case 1:
{
Base_Long = rad(BaseLongitude); //船载移动基站经度(单位为弧度)
Base_Lat = rad(BaseLatitude); //船载移动基站纬度(单位为弧度)
break;
}
}
//Base_Long = point_remove(rad(BaseLongitude), 8); //基站经度(单位为弧度)
//Base_Lat = point_remove(rad(BaseLatitude), 8); //基站纬度(单位为弧度)
double Dif_Long = Base_Long - Ship_Long; //两点经度之差
y = Math.sin(Dif_Long) * Math.cos(Base_Lat);
x = Math.cos(Ship_Lat) * Math.sin(Base_Lat) - Math.sin(Ship_Lat) * Math.cos(Base_Lat) * Math.cos(Dif_Long);
if (y > 0)
{
if (x > 0)
{
base_angle_rad = Math.atan(y / x);
}
else if (x < 0)
{
base_angle_rad = PI - Math.atan(-y / x);
}
else if (x == 0)
{
base_angle_rad = PI / 2;
}
}
else if (y < 0)
{
if (x > 0)
{
base_angle_rad = -Math.atan(-y / x);
}
else if (x < 0)
{
base_angle_rad = Math.atan(y / x) - PI;
}
else if (x == 0)
{
base_angle_rad = PI * 3 / 2;
}
}
else if (y == 0)
{
if (x > 0)
{
base_angle_rad = 0;
}
else if (x < 0)
{
base_angle_rad = PI;
}
else if (x == 0)
{
temp = "两点重合";
}
}
base_angle = unrad(base_angle_rad);
//point_num=2;
base_angle = point_remove(base_angle, 2);
if (base_angle < 0)
{
base_angle = base_angle + 360;
}
temp = String.valueOf(base_angle) + " 度"; //基站方位角
temp_send = String.valueOf(base_angle);
//如天线通信协议中以目的位置作为参数时,基站对于船首向的方位角,即天线的目的位置,直接根据通信协议写入控制信号
if (base_angle > ship_true_angle) //当基站方位角(β)大于航向角(α)时,则基站相对于船舶的方位角θ为(θ=β-α)
{
BaseToShip_rot_angle = base_angle - ship_true_angle;
}
else //当基站方位角(β)小于航向角(α)时,则基站相对于船舶的方位角θ为(θ=360-(α-β))
{
BaseToShip_rot_angle = 360 - (ship_true_angle - base_angle);
}
temp1 = String.valueOf(BaseToShip_rot_angle) + " 度"; //天线指向角
temp_send1 = String.valueOf(BaseToShip_rot_angle);
DestinationAngle = temp_send1;
}
public double rad(double angle) //角度转换为弧度
{
return angle * PI / 180.0; //弧度 = 角度 * π / 180
}
public double unrad(double radian) //弧度转换为角度
{
return radian * 180.0 / PI; //角度 = 弧度 * 180 / π
}
/**串口数据接收*/
public static void comport1_DataReceived(String AIS_msg )//, SerialDataReceivedEventArgs e)
{
//Boat boat = new Boat();
{
try
{
/*
* int num = port.getDataBits(); char[] buffer = new char[num];
* SerialPortManager.readFromPort(port);//(buffer, 0, num);
*/ //AIS_msg = new String(buffer);
char[] buffer = AIS_msg.toCharArray();
//#region CXY 获取GPRMC
for (char b: buffer)
{
if (b == '$')
{
_recstatu = true;
_buff.clear();
}
if (_recstatu) //是否处于接收数据包状态
{
_buff.add(String.valueOf(b));
}
if (b == '\n') //帧尾
{
_recstatu = false;
// HandleData(_buff.toArray());
_buff.clear();
}
}
//#endregion
//textBox1 += AIS_msg;
int number;
number = buffer.length;
String Window_TEXT = null;
// textBox1.SelectionStart = textBox1.TextLength;
//textBox1.ScrollToCaret();
data_length = 0; //单一语句长度
int exclamation_num = 0; //‘!’在语句中的位置
int exclamation_count = 0;
int enter_num = 0; //‘\n’在语句中的位置
int enter_count = 0;
if (AIS_msg.contains("!")) //查找语句起始符‘!’
{
exclamation_count++; //‘!’计数
exclamation_num = AIS_msg.indexOf('!'); //‘!’在语句中的位置
}
if (AIS_msg.contains("\n")) //查找语句终止符‘\n’
{
enter_count++; //‘\n’计数
enter_num = AIS_msg.indexOf('\n'); //‘\n’在语句中的位置
newline_count++; //累计计算换行符个数
}
if (newline_count == 100) //如果“AIS数据接收显示”窗口显示的数据超过100行,则清空窗口
{
//textBox1.Clear();
newline_count = 0;
}
//一个事件中语句传输完毕:
if (exclamation_count != 0 && enter_count != 0 && exclamation_num < enter_num) //一个事件中语句传输完毕,即语句中包含语句起始符‘!’和语句终止符‘\n’,且‘!’在前,‘\n’在后
{
data_count = 0;
//CXY 解析GPS数据
// MyFun.GPS_RMC_Parse(AIS_msg.substring(exclamation_num, enter_num - exclamation_num));
for (int i = 0; i < AIS_msg.length(); i++)
{
SingleDataBuffer[i] = buffer[i];
data_count++;
}
data_length = data_count - 1; //获取语句长度
if (Data_check() != 0) //语句传输完毕,开始解析
{
System.out.println("通过检查的数据------------------:"+AIS_msg);
Data_repro();
MainFrame.mDataValiableView.append(new String(AIS_msg) + "\r\n");
//System.out.println("defi_m-----------------------------"+defi_m);
switch (defi_m)
{
case 1:
Data_analyze_m123(AIS_msg);
break;
case 2:
Data_analyze_m123(AIS_msg);
break;
case 3:
Data_analyze_m123(AIS_msg);
break;
//case 5:
//Data_analyze_m5();
//break;
case 18:
Data_analyze_m18(AIS_msg);
break;
case 19:
Data_analyze_m19(AIS_msg);
break;
default:
break;
}
if (basechange == 0)
{
if (count_enable == 1 && MMSI_enable == 1)
{
// BaseDistanceCount();
//PointAngleCount();
if (angle_send == 1)
{
// AngleSend();
}
}
}
else if (basechange == 1)
{
// if (count_enable == 1 && MMSI_enable != 0 && textBox5.Text != null)
{
// BaseDistanceCount();
//PointAngleCount();
if (angle_send == 1)
{
// AngleSend();
}
}
}
// AIS_filesave_and_timer();
}
else
{
//textBox2.Clear();
Window_TEXT = "当前语句未通过数据检查,无需解析\r\n";
//textBox2.Text = Window_TEXT;
System.out.println("当前语句未通过数据检查,无需解析");
//textBox3.Clear();
Window_TEXT = "当前语句未通过数据检查,无解析结果\r\n";
//textBox3.Text = Window_TEXT;
}
}
//一个事件中语句传输未完毕,使用多次事件传输:
if (exclamation_count != 0 && enter_count == 0) //一个事件中语句传输未完成,且该条数据为语句的第一条数据,即检测到语句起始符‘!’,没有语句终止符‘\n’
{
event_count = 1; //将该事件编号设为1,即该语句的第一条数据
data_count = 0;
for (i = 0; i < AIS_msg.length(); i++)
{
SingleDataBuffer[data_count] = buffer[i];
data_count++;
}
}
else if (event_count != 0 && enter_count == 0) //一个事件中语句传输未完成,且该条数据为语句的第二条数据,即检测到事件计数为1,且没有语句终止符‘\n’
{
event_count = 2; //将该事件编号设为2,即该语句的第二条数据
for (i = 0; i < AIS_msg.length(); i++)
{
SingleDataBuffer[data_count] = buffer[i];
data_count++;
}
}
else if (enter_count != 0) //一个事件中语句的剩余传输完成,且不包含下一条语句的起始部分,即该条数据为不包含语句起始符,且有语句终止符‘\n’
{
if (event_count != 0)
{
event_count = 0; //语句的剩余传输完成,该条语句的传输事件结束,事件计数归零
for (i = 0; i < enter_num; i++)
{
SingleDataBuffer[data_count] = buffer[i];
data_count++;
}
data_length = data_count; //获取语句长度
if (Data_check() != 0) //语句传输完毕,开始解析
{
Data_repro();
switch (defi_m)
{
case 1:
Data_analyze_m123(AIS_msg);
break;
case 2:
Data_analyze_m123(AIS_msg);
break;
case 3:
Data_analyze_m123(AIS_msg);
break;
//case 5:
//Data_analyze_m5();
//break;
case 18:
Data_analyze_m18(AIS_msg);
break;
case 19:
Data_analyze_m19(AIS_msg);
break;
default:
break;
}
if (basechange == 0)
{
if (count_enable == 1 && MMSI_enable == 1)
{
//BaseDistanceCount();
//PointAngleCount();
if (angle_send == 1)
{
// AngleSend();
}
}
}
else if (basechange == 1)
{
// if (count_enable == 1 && MMSI_enable != 0 && textBox5.Text != null)
{
//BaseDistanceCount();
//PointAngleCount();
if (angle_send == 1)
{
//AngleSend();
}
}
}
//AIS_filesave_and_timer(); //
}else
{
// textBox2.Clear();
//textBox2.Text = "1.当前语句未通过数据检查,无需解析\r\n";
System.out.println("当前语句未通过数据检查,无需解析");
//textBox3.Clear();
//textBox3.Text = "2.当前语句未通过数据检查,无解析结果\r\n";
}
}
if (event_count == 0 && exclamation_count != 0 && exclamation_num > enter_num) //上一条语句传输完成,且该事件中包含下一条语句的起始部分
{
event_count = 1;
data_count = 0;
for (i = exclamation_num; i < AIS_msg.length(); i++)
{
SingleDataBuffer[data_count] = buffer[i];
data_count++;
}
}
}
}catch (Exception e) {
// TODO: handle exception
AISLog.error(AIS_Analyse.class, e.getMessage());
e.printStackTrace();
}
}
}
public static int Data_check()
{
int i;
int check_number_count = 0;
String StatusForAIS = null;
String SingleAISData =""; //语句解析结果
int nt = 0; //","分隔符计数器
int dn = 0; //需校验的有效字符计数器SSS
int data_xor = 0; //异或计算中间变量
int check_end = 0; //校验终止位
int separate_num = 0; //消息分解总条数-
int serial_num = 0; //语句序号
int id_num = 0; //顺序语句标识
int return_num = 0; //数据返回码(消息识别码+数据起始位+数据终止位+拆分信息)
//查找到校验和
int check_sum = 0;
int[] n = new int[2];
for (i = 0; i < data_count; i++)
{
if (SingleDataBuffer[i] == '*' && SingleDataBuffer[i] != '\0')
{
// puts("check_sum_in:");
if (SingleDataBuffer[i + 1] >= '0' && SingleDataBuffer[i + 1] <= '9') //校验和最高位转为十六进制
n[1] = SingleDataBuffer[i + 1] - '0';
else if (SingleDataBuffer[i + 1] >= 'A' && SingleDataBuffer[i + 1] <= 'Z')
n[1] = (SingleDataBuffer[i + 1] - 'A') + 10;
else if (SingleDataBuffer[i + 1] >= 'a' && SingleDataBuffer[i + 1] <= 'z')
n[1] = (SingleDataBuffer[i + 1] - 'a') + 10;
if (SingleDataBuffer[i + 2] >= '0' && SingleDataBuffer[i + 2] <= '9') //校验和最低位转为十六进制
n[0] = SingleDataBuffer[i + 2] - '0';
else if (SingleDataBuffer[i + 2] >= 'A' && SingleDataBuffer[i + 2] <= 'Z')
n[0] = (SingleDataBuffer[i + 2] - 'A') + 10;
else if (SingleDataBuffer[i + 2] >= 'a' && SingleDataBuffer[i + 2] <= 'z')
n[0] = (SingleDataBuffer[i + 2] - 'a') + 10;
check_sum = n[1] * 16 + n[0]; //生成校验和
}
else if (SingleDataBuffer[i] == '\0')
break;
}
//END
//查找地址域,并判断语句是否为AIVDM或AIVDO消息
char[] ad_f = new char[5];
char[] AIVDM = { 'A', 'I', 'V', 'D', 'M' };
char[] AIVDO = { 'A', 'I', 'V', 'D', 'O' };
for (i = 0; i < 5; i++)
{
ad_f[i] = SingleDataBuffer[i + 1];
if (ad_f[i] != AIVDM[i] && ad_f[i] != AIVDO[i])
{
StatusForAIS ="设备类型及语句类型不符合要求,无需解析\r\n";
// textBox4.Clear(); //清空“当前语句解析状态显示”窗口
//textBox4.Text = StatusForAIS;
System.out.println("status-------------"+StatusForAIS);
sen_f = 0;
return 0;
}
else if (ad_f[i] == AIVDM[i])
{
sen_f = 1; //接收到其他船舶的AIS信息,则语句类型识别码为1
}
else if (ad_f[i] == AIVDO[i])
{
sen_f = 2; //接收到其他船舶的AIS信息,则语句类型识别码为2
}
}
if (sen_f == 1)
{
StatusForAIS ="该语句为AIVDM消息,可以进行解析\r\n";
System.out.println("status-------------"+StatusForAIS);
check_number_count += 1;
}
else if (sen_f == 2)
{
StatusForAIS ="该语句为AIVDO消息,可以进行解析\r\n";
System.out.println("status-------------"+StatusForAIS);
check_number_count += 1;
}
// END
//找到数据域,并进行异或运算,并对数据进行校验
for (i = 0; i < data_count; i++)
{
if (SingleDataBuffer[i] == ',')
{
nt++;
if (nt == 5) //根据分隔符,查找数据域起始位
{
data_start = i + 2;
continue;
}
else if (nt == 6) //根据分隔符,查找数据域终止位
{
check_end = i + 2;
data_end = i;
}
}
else
continue;
}
dn = check_end - 2; //异或运算次数
data_xor = SingleDataBuffer[1]; //异或运算中间变量初始化
for (i = 1; i <= dn; i++) //对数据进行异或运算
{
data_xor = data_xor ^ SingleDataBuffer[i + 1];
}
if (data_xor != check_sum) //判断校验结果是否正确
{
StatusForAIS = "校验和错误\r\n";
System.out.println("校验和错误");
// textBox4.Text = StatusForAIS;
//textBox4.Clear(); //清空“当前语句解析状态显示”窗口
return 0;
}
else
{
check_number_count += 1;
System.out.println("校验和正确");
StatusForAIS = "校验和正确\r\n";
}
if (check_number_count == 3)
{
// textBox2.Clear(); //清空“当前AIS数据显示”窗口
for (i = 0; i < data_length; i++)
{
SingleAISData += SingleDataBuffer[i];
}
System.out.println("aisdata"+SingleAISData);
//textBox2.Text = SingleAISData;
}
// END
//拆分语句识别
//int separate_num = 0; //消息分解总条数
// int serial_num = 0; //语句序号
//int id_num = 0; //顺序语句标识
//int return_num = 0; //数据返回码(消息识别码+数据起始位+数据终止位+拆分信息)
nt = 0; //","分隔符计数器归零
for (i = 0; i < 82; i++)
{
if (SingleDataBuffer[i] == ',')
{
nt++;
if (nt == 1) //根据分隔符,查找消息分解总条数
{
separate_num = SingleDataBuffer[i + 1] - '0';
continue;
}
else if (nt == 2) //根据分隔符,查找语句序号
{
serial_num = SingleDataBuffer[i + 1] - '0';
continue;
}
else if (nt == 3 && separate_num > 1) //根据分隔符,查找顺序语句标识
{
id_num = SingleDataBuffer[i + 1] - '0';
continue;
}
}
else
continue;
}
//查找数据域的第一个参数:“消息识别码”,并判断该消息是否含有可用信息,及是否进行解析
//char start_char = SingleDataBuffer[data_start - 1];
defi_m = 0;
char[] y;//消息识别码初始化
y = str_to_bi( SingleDataBuffer[data_start - 1] ).toCharArray();
System.out.println("y-----"+new String(y));
for (i = 1; i <= 6; i++)
{
defi_m = defi_m + (y[i-1] - '0') * (int)(Math.pow(2, 6 - i));
//System.out.println(i+"-----"+defi_m+",y.i="+y[i-1]);
}
System.out.println("解析到的数据:defi_m--------"+defi_m);
if (separate_num == 1 || serial_num == 1) //对单一语句或拆分语句的
{
if (defi_m != 1 && defi_m != 2 && defi_m != 3 && defi_m != 18 && defi_m != 19) //暂时不考虑静态信息,只解析带有经纬度信息的AIS语句 2017.10.26
{
//textBox4.Clear(); //清空“当前语句解析状态显示”窗口
System.out.println("此消息不属于需使用的消息类型(消息1、2、3、5、18、19),无需解析");
return 0;
}
else
{
check_number_count += 1;
StatusForAIS = "该消息内包含可用信息,可以进行参数提取\r\n";
System.out.println(StatusForAIS);
//textBox4.Text = StatusForAIS;
}
}
else
//AfxMessageBox("该消息为拆分语句的后续语句,可以直接进行参数提取\n");
{
StatusForAIS += "该消息为拆分语句的后续语句,可以合并后进行参数提取\r\n";
//textBox4.Clear(); //清空“当前语句解析状态显示”窗口
System.out.println(StatusForAIS);
return 0;
}
//textBox4.Clear(); //清空“当前语句解析状态显示”窗口
if (check_number_count == 3)
{
//textBox2.Clear(); //清空“当前AIS数据显示”窗口
for (i = 0; i < data_length; i++)
{
SingleAISData += SingleDataBuffer[i];
}
System.out.println("SingleAISData--------"+SingleAISData);
}
// END
// 返回值整合(当语句未拆分时,返回消息识别码、数据域起始值和数据域结束值;当拆分语句时,返回值增加语句序号和顺序语句标识)
if (separate_num == 1)
{
//("该条语句未进行拆分\n\n");
return_num = defi_m * 10000000 + data_start * 100000 + data_end * 1000 + 100;
// textBox4.Text = StatusForAIS;
return return_num;
}
else
{
//("该条语句为拆分语句,共拆分为%d条,该条语句的语句序号为:%d\n\n");
return_num = defi_m * 10000000 + data_start * 100000 + data_end * 1000 + separate_num * 100 + serial_num * 10 + id_num;
return return_num;
}
}
public static int Data_repro()
{
//消息识别完毕,取数据域内容
int dn_data; //数据域有效字符计数器
int i;
//string temp;
StringBuilder AISDataUnpack = new StringBuilder();
StringBuilder y = new StringBuilder();
dn_data = data_end - data_start + 1;
for (i = 0; i < dn_data; i++)
{
String tempStr = str_to_bi(SingleDataBuffer[data_start + i - 1]).toString();
if(tempStr!=null) {
y =y.append(tempStr);
} else {
System.out.println("null Error");
}
}
AISDataUnpack = y;
// textBox3.Clear(); //清空“数据解封装结果显示”窗口
// textBox3.Text += "\r\n";
// textBox3.Text += "语句解封装后对应的二进制码:\r\n";
//textBox3.Text += AISDataUnpack;
//
sum_binary = AISDataUnpack.toString().toCharArray();
return 0;
}
/**有效字符转化为6位二进制*/
public static String str_to_bi(char a) //有效字符转化为6位二进制
{
int rb; //转化中间变量return_binary
rb = a + 0x28;
if (rb > 0x80)
rb = rb + 0x20;
else
rb = rb + 0x28; //将有效字符转化成十六进制,
rb = rb & 0x3f; //取后六位
//将十六进制数转化为二进制字符
char[] bi = new char[6]; //保留数组数据至程序执行完成
int i;
int r, n; //声明余数和除数
n = rb;
for (i = 1; i <= 6; i++)
{
if (n != 0)
{
r = n % 2;
n = n / 2;
if(r == 1)
{
bi[i - 1] = '1';
}
else
{
bi[i - 1] = '0';
}
}
else
{
bi[i - 1] = '0';
}
}
for (i = 1; i <= 3; i++) //逆序输出
{
char m;
m = bi[i - 1];
bi[i - 1] = bi[6 - i];
bi[6 - i] = m;
}
String str = new String(bi);
return str;
}
/**消息18数据解析*/
public static void Data_analyze_m18(String AISMessage) //消息18数据解析
{
int i=0;
Boat boat = new Boat();
String temp1;
String temp2;
String temp3;
String temp4;
//String AISMessage = null;
String MMSI_OUT;
//String temp_MMSI;
String temp_BaseShipMMSI = null;
MMSI_enable = 0;
//temp_MMSI = textBox5.Text; //读取目前跟踪的用户船MMSI码
//temp_BaseShipMMSI = textBox18.Text; //读取当前基站船的MMSI码
AISMessage += "\r\n\r\n";
AISMessage += "解析后的数据如下:\r\n\r\n";
// 二进制数据向有效数据转换
char data_tr_bin = 0; //二进制数据中间变量初始化
int data_tr_valid = 0; //有效数据中间变量初始化
int count_s = 0; //数据位起始值
int count_e = 0; //数据位终止值
int digit_num; //数据位数
// 提取消息识别码
int message_identifier; //消息识别码
digit_num = 6; //消息识别码的位数为6位
count_e = count_s + digit_num - 1; //计算数据终止位
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
message_identifier = data_tr_valid;
if (message_identifier == 18)
{
AISMessage += "消息识别码: ";
AISMessage += message_identifier;
AISMessage += " 即 消息类型为“标准B类设备位置报告”。\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取消息识别码)
// 提取转发指示符
int transpond_indicate; //转发指示符
digit_num = 2; //转发指示符的位数为2位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
transpond_indicate = data_tr_valid;
AISMessage += "转发指示符: ";
AISMessage += transpond_indicate;
AISMessage += " 即 该条消息被转发的次数为:";
AISMessage += transpond_indicate;
AISMessage += " 次。\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取转发指示符)
// 提取用户识别码,即MMSI码
int MMSI; //用户识别码
digit_num = 30; //用户识别码,即MMSI码的位数为30位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
MMSI = data_tr_valid;
AISMessage += "用户识别码(即MMSI码): ";
AISMessage += MMSI;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
MMSI_OUT = String.valueOf(MMSI); //提取当前信息的MMSI码,用于船舶识别
System.out.print("MMSI_OUT:"+MMSI_OUT);
// END(提取用户识别码,即MMSI码)
// 提取为地区或区域应用保留
digit_num = 8; //为地区或区域应用保留的位数为8位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
AISMessage += "为地区性应用所保留: ";
AISMessage += data_tr_valid;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取为地区或区域应用保留)
// 提取对地航速
double speed_over_ground; //对地航速
digit_num = 10; //对地航速的位数为10位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
speed_over_ground = (float)(data_tr_valid) / 10;
AISMessage += "对地航速: ";
AISMessage += speed_over_ground;
boat.setSog(speed_over_ground+"kn");
AISMessage += " kn";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取对地航速)
// 提取船位精确度
int position_accuracy; //船位精确度
digit_num = 1; //船位精确度的位数为1位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
position_accuracy = data_tr_valid;
AISMessage += "船位精确度: ";
AISMessage += position_accuracy;
if (data_tr_valid == 1)
AISMessage += " 即 高精度(<10m,DGNSS接收机的差分模式)";
else if (data_tr_valid == 0)
AISMessage += " 即 低精度(>10m,GNSS接收机或其他电子定位装置的自主模式)";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取船位精确度)
// 提取经度
double longitude; //经度
digit_num = 28; //经度的位数为28位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
int hour;
int minute;
double second;
if (sum_binary[count_s] != '1')
{
//("经度是正数,即东经\n");
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
//System.out.print("原始经度数据:"+data_tr_valid);
}
longitude = (float)(data_tr_valid) / 10000;
hour = (int)(data_tr_valid / 10000 / 60);
minute = (int)(longitude - hour * 60);
second = (longitude - hour * 60 - minute) * 60;
RecentLongitude = longitude / 60; //将经度信息传递给全局变量,单位为度
AISMessage += "经度: ";
AISMessage += "东经 ";
AISMessage += hour;
AISMessage += "度";
AISMessage += minute;
AISMessage += "分";
AISMessage += second;
AISMessage += "秒";
AISMessage += "\r\n";
}
else if (sum_binary[count_s] == '1')
{
//("经度是负数,即西经\n");
for (i = count_s + 1; i <= count_e; i++)
{
if (sum_binary[i] == '0')
data_tr_bin = '1';
else
data_tr_bin = '0';
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
//System.out.print("原始经度数据:"+data_tr_valid);
}
data_tr_valid = data_tr_valid + 1; //经度的绝对值
longitude = (float)(data_tr_valid) / 10000;
hour = (int)(data_tr_valid / 10000 / 60);
minute = (int)(longitude - hour * 60);
second = (longitude - hour * 60 - minute) * 60;
longitude = -longitude; //经度的真实值
RecentLongitude = longitude / 60; //将经度信息传递给全局变量
AISMessage += "经度: ";
AISMessage += "西经 ";
AISMessage += hour;
AISMessage += "度";
AISMessage += minute;
AISMessage += "分";
AISMessage += second;
AISMessage += "秒";
AISMessage += "\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取经度)
// 提取纬度
double latitude; //纬度
digit_num = 27; //纬度的位数为27位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
if (sum_binary[count_s] != '1')
{
//("纬度是正数,即北纬\n");
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
//System.out.print("原始经度数据:"+data_tr_valid);
}
latitude = (float)(data_tr_valid) / 10000;
hour = (int)(data_tr_valid / 10000 / 60);
minute = (int)(latitude - hour * 60);
second = (latitude - hour * 60 - minute) * 60;
RecentLatitude = latitude / 60; //将当前纬度传递给全局变量
AISMessage += "纬度: ";
AISMessage += "北纬 ";
AISMessage += hour;
AISMessage += "度";
AISMessage += minute;
AISMessage += "分";
AISMessage += second;
AISMessage += "秒";
AISMessage += "\r\n";
}
else if (sum_binary[count_s] == '1')
{
//("纬度是负数,即南纬\n");
for (i = count_s + 1; i <= count_e; i++)
{
if (sum_binary[i] == '0')
data_tr_bin = '1';
else
data_tr_bin = '0';
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
//System.out.print("原始经度数据:"+data_tr_valid);
}
data_tr_valid = data_tr_valid + 1; //纬度的绝对值
latitude = (float)(data_tr_valid) / 10000;
hour = (int)(data_tr_valid / 10000 / 60);
minute = (int)(latitude - hour * 60);
second = (latitude - hour * 60 - minute) * 60;
latitude = -latitude; //纬度的真实值
RecentLatitude = latitude / 60; //将当前纬度传递给全局变量
AISMessage += "纬度: ";
AISMessage += "北纬 ";
AISMessage += hour;
AISMessage += "度";
AISMessage += minute;
AISMessage += "分";
AISMessage += second;
AISMessage += "秒";
AISMessage += "\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取纬度)
// 提取对地航向
double course_over_the_ground;
digit_num = 12; //对地航向的位数为12位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
course_over_the_ground = (float)(data_tr_valid) / 10;
AISMessage += "对地航向: ";
AISMessage += course_over_the_ground;
boat.setCog(course_over_the_ground+"度");
AISMessage += "度";
if (course_over_the_ground >= 360)
AISMessage += " 即 默认值(不可用)";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取对地航向)
// 提取真航向
int true_course; //真航向
digit_num = 9; //真航向的位数为9位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
true_course = data_tr_valid;
AISMessage += "真航向: ";
AISMessage += true_course;
AISMessage += "度";
if (true_course == 511)
AISMessage += " 即 默认值(不可用)";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取真航向)
// 提取时间标记
int time_marker; //时间标记
digit_num = 6; //时间标记的位数为6位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
time_marker = data_tr_valid;
AISMessage += "时间标记: ";
AISMessage += "报告产生时的UTC秒: ";
AISMessage += time_marker;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取时间标记)
// 提取为地区性应用所保留
digit_num = 4; //为地区性应用所保留的位数为4位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
AISMessage += "为地区性应用所保留: ";
AISMessage += data_tr_valid;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取为地区性应用所保留)
// 提取备用位
digit_num = 4; //备用位的位数为4位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
AISMessage += "备用位: ";
AISMessage += data_tr_valid;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取备用位)
// 提取RAIM标志
int RAIM; //RAIM标志
digit_num = 1; //RAIM标志的位数为1位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
RAIM = data_tr_valid;
AISMessage += "RAIM标志: ";
AISMessage += RAIM;
if (RAIM == 1)
AISMessage += " 即 RAIM使用";
else
AISMessage += " 即 RAIM未使用(默认)";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取RAIM标志)
// 提取通信状态选择标志
int conmunication_choose;
digit_num = 1; //通信状态选择标志的位数为1位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
conmunication_choose = data_tr_valid;
AISMessage += "通信状态选择标志: ";
AISMessage += conmunication_choose;
switch (conmunication_choose)
{
case 0:
AISMessage += " 即 SOTDMA通信状态";
break;
case 1:
AISMessage += " 即 ITDMA通信状态";
break;
default:
break;
}
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取通信状态选择标志)
// 提取通信状态
AISMessage += "通信状态: ";
if (conmunication_choose == 0) //通信状态为SOTDMA
{
AISMessage += "SOTDMA通信状态";
AISMessage += "\r\n";
//提取同步状态
int synchronization_status; //同步状态
digit_num = 2; //同步状态的位数为2位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
synchronization_status = data_tr_valid;
AISMessage += " 同步状态: ";
AISMessage += synchronization_status;
if (synchronization_status == 0)
{
AISMessage += " 即 直接获取UTC";
AISMessage += "\r\n";
}
else if (synchronization_status == 1)
{
AISMessage += " 即 间接获取UTC";
AISMessage += "\r\n";
}
else if (synchronization_status == 2)
{
AISMessage += " 即 台站同步于基地台";
AISMessage += "\r\n";
}
else if (synchronization_status == 3)
{
AISMessage += " 即 台站同步于另一个接受台数量最多的台站";
AISMessage += "\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
//提取时隙超时
int TS_overtime; //时隙超时
digit_num = 3; //时隙超时的位数为3位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
TS_overtime = data_tr_valid;
AISMessage += " 时隙超时: ";
AISMessage += TS_overtime;
if (TS_overtime == 0)
{
AISMessage += " 即 这是该时隙最后一次传输";
AISMessage += "\r\n";
}
else
{
AISMessage += " 即 在时隙改变前将保留该时隙 ";
AISMessage += TS_overtime;
AISMessage += " 帧";
AISMessage += "\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
//提取子信息
int child_information; //子信息
digit_num = 14; //子信息的位数为14位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
AISMessage += " 子信息: ";
if (TS_overtime == 3 || TS_overtime == 5 || TS_overtime == 7)
{
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
child_information = data_tr_valid;
AISMessage += " 本台当前接收到其他台站数量为:";
AISMessage += child_information;
AISMessage += "\r\n";
}
else if (TS_overtime == 2 || TS_overtime == 4 || TS_overtime == 6)
{
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
child_information = data_tr_valid;
AISMessage += " 用于该发射的时隙号为:";
AISMessage += child_information;
AISMessage += "\r\n";
}
else if (TS_overtime == 1)
{
int UTC_hour;
int UTC_min;
AISMessage += " UTC: ";
for (i = count_s; i <= count_s + 4; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_s + 4 - i));
}
UTC_hour = data_tr_valid;
data_tr_valid = 0;
AISMessage += UTC_hour;
AISMessage += " 小时";
count_s = count_s + 5;
for (i = count_s; i <= count_s + 6; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_s + 6 - i));
}
UTC_min = data_tr_valid;
AISMessage += UTC_min;
AISMessage += " 分";
AISMessage += "\r\n";
}
else if (TS_overtime == 0)
{
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
child_information = data_tr_valid;
AISMessage += " 时隙偏移量为:";
AISMessage += child_information;
AISMessage += "\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
}
else if (conmunication_choose == 1) //通信状态为ITDMA
{
AISMessage += "ITDMA通信状态";
AISMessage += "\r\n";
//提取同步状态
int synchronization_status; //同步状态
digit_num = 2; //同步状态的位数为2位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
//printf("%d\n",data_tr_valid);
}
synchronization_status = data_tr_valid;
AISMessage += " 同步状态: ";
AISMessage += synchronization_status;
if (synchronization_status == 0)
{
AISMessage += " 即 直接获取UTC";
AISMessage += "\r\n";
}
else if (synchronization_status == 1)
{
AISMessage += " 即 间接获取UTC";
AISMessage += "\r\n";
}
else if (synchronization_status == 2)
{
AISMessage += " 即 台站同步于基地台";
AISMessage += "\r\n";
}
else if (synchronization_status == 3)
{
AISMessage += " 即 台站同步于另一个接受台数量最多的台站";
AISMessage += "\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
//提取时隙增量
int TS_add; //时隙增量
digit_num = 13; //时隙增量的位数为13位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
TS_add = data_tr_valid;
AISMessage += " 时隙增量: ";
AISMessage += TS_add;
if (TS_add == 0)
{
AISMessage += " 即 不在进行进一步的传输";
AISMessage += "\r\n";
}
else
{
AISMessage += " 即 到下一个将要使用的时隙的偏移为:";
AISMessage += TS_add;
AISMessage += "帧";
AISMessage += "\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
//提取时隙数
int TS_num; //时隙数
digit_num = 3; //时隙数的位数为3位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
TS_num = data_tr_valid;
AISMessage += " 时隙数: ";
AISMessage += " 应分配的连续时隙的数量为:";
AISMessage += TS_num;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
//提取保持标记
int maintain_marker; //保持标记
digit_num = 1; //保持标记的位数为1位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
maintain_marker = data_tr_valid;
AISMessage += " 保持标记: ";
AISMessage += maintain_marker;
if (maintain_marker == 1)
AISMessage += " 即 时隙分配应多保留一帧";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
}
/*
//仅提取“通信状态”数值
for(i=count_s;i<=count_e;i++)
{
data_tr_bin=s[i];
data_tr_valid =data_tr_valid+(data_tr_bin-'0')*(int)(Math.Pow(2,count_e-i));
//printf("%d\n",data_tr_valid);
}
fprintf(w18,"%s","通信状态: ");
fprintf(w18,"%d",data_tr_valid);
fprintf(w18,"%s","\n");
count_s=count_e+1; //提取完毕后,重置数据位起始值
*/
// END(提取通信状态)
//if (MMSI_OUT == temp_MMSI) //如果该条信息是选中的用户船舶信息,则可进行参数提取和方位计算
if (sen_f == 2)
{
AISMessage += "\r\n";
AISMessage += "该条信息是选中的用户船舶信息,可进行参数提取和方位计算";
MMSI_enable = 1;
//textBox5.Clear();
//textBox5.Text = MMSI_OUT;
temp1 = String.valueOf(speed_over_ground);
//textBox19.Clear();
// textBox19.Text = temp1;
temp2 = String.valueOf(RecentLongitude);
//temp2 = RecentLongitude.ToString();
//textBox22.Clear(); //清空“船舶信息显示的经度”窗口
// textBox22.Text = temp2;
ShipLongitude = RecentLongitude;
temp3 = String.valueOf(RecentLatitude);
//temp3 = RecentLatitude.ToString();
//textBox20.Clear(); //清空“船舶信息显示的纬度”窗口
//textBox20.Text = temp3;
ShipLatitude = RecentLatitude;
RecentCourse = course_over_the_ground; //将对地航向信息传递给全局变量
//RecentCourse=true_course; //将真航向信息传递给全局变量
if (RecentCourse >= 0 && RecentCourse < 360)
{
temp4 = String.valueOf(RecentCourse);
}
else
{
RecentCourse = 0; //当航向信息不可用时,则指向角的计算将不考虑航向信息
temp4 = "不可用";
}
/*
if(RecentCourse!=511)
{
temp4.Format( "%d",RecentCourse);
}
else
{
RecentCourse=0;
temp4="不可用";
}
*/
//textBox21.Clear(); //清空“船舶信息显示的真航向”窗口
//textBox21.Text = temp4;
}
else if (MMSI_OUT == temp_BaseShipMMSI) //如果该条信息是跟踪的基站船舶信息,则可进行参数提取和方位计算
{
AISMessage += "\r\n";
AISMessage += "该条信息是跟踪的基站船舶信息,则可进行参数提取和方位计算";
MMSI_enable = 2;
temp2 = String.valueOf(RecentLongitude);
//temp2 = RecentLongitude.ToString();
//textBox17.Clear(); //清空“船载基站信息显示的经度”窗口
//textBox17.Text = temp2;
BaseLongitude = RecentLongitude;
temp3 =String.valueOf(RecentLatitude);
//temp3 = RecentLatitude.ToString();
//textBox15.Clear(); //清空“船载基站信息显示的纬度”窗口
//textBox15.Text = temp3;
BaseLatitude = RecentLatitude;
}
else //如果该条语句不是选中船舶(用户船或基站船)的信息,则无需进行参数提取和方位计算
{
AISMessage += "\r\n";
AISMessage += "该条信息不是选中的船舶信息,无需进行方位计算";
MMSI_enable = 0;
}
AISLog.logInfo(AIS_Analyse.class, "Analysie18,"+"经度:"+RecentLongitude+",纬度:"+RecentLatitude+",mmsi:"+MMSI+",航速:"+boat.getCog()+",航向:"+boat.getSog());
System.out.println("经度:"+RecentLongitude+",纬度:"+RecentLatitude+",mmsi:"+MMSI);
boat.setLongitude(String.valueOf(RecentLongitude));
boat.setLatitude(String.valueOf(RecentLatitude));
boat.setMmsiId(String.valueOf(MMSI));
BoatData(boat);
System.out.println(AISMessage);
//textBox3.Text += AISMessage;
}
/**船舶经纬度是否改变*/
public static Boolean PlaceChange(Boat boat,String Longtitude,String Latitude){
if(!Longtitude.equals(boat.getLongitude())||!Latitude.equals(boat.getLatitude())){
return true;
} else {
return false;
}
}
/**判断是否是新船*/
public static Boolean NewBoat(Boat boat){
List nowBoatList = boatMapper.getAllBoat();
if(nowBoatList!=null){
for(Boat boatx:nowBoatList){
if(boat.getMmsiId().equals(boatx.getMmsiId())){
return false;
}
}
} else{
System.out.print("没有船只");
return true;
}
return true;
}
/**船舶数据入库*/
public static void BoatData(String Longitude,String Latitude,String MMSI){
Boat boat = new Boat();
boat.setLatitude(Latitude);
boat.setLongitude(Longitude);
boat.setMmsiId(MMSI);
boat.setId(MiscUtil.getUUID());
boat.setStatus("1");
if(NewBoat(boat)){
Msg msg = boatService.insert(boat);
System.out.print(msg.getMsg());
} else {
boat = boatMapper.selectByMMSI(MMSI);
if(PlaceChange(boat, Longitude, Latitude)){
boat.setLongitude(Longitude);
boat.setLatitude(Latitude);
int result = boatService.updateByPrimaryKey(boat);
System.out.print(result);
} else {
System.out.print("位置没有改变");
}
}
}
/**船舶数据入库*/
public static void BoatData(Boat boat){
Boat boat2 = new Boat();
boat2.setLatitude(boat.getLatitude());
boat2.setLongitude(boat.getLongitude());
boat2.setMmsiId(boat.getMmsiId());
boat2.setId(MiscUtil.getUUID());
boat2.setStatus("1");
boat2.setCog(boat.getCog());
boat2.setSog(boat.getSog());
if(NewBoat(boat2)){
Msg msg = boatService.insert(boat2);
System.out.print(msg.getMsg());
Msg msg2 = boatHistoryService.insert(boat2);
System.out.print(msg2.getMsg());
} else {
boat = boatMapper.selectByMMSI(boat.getMmsiId());
boat.setCog(boat2.getCog());
boat.setSog(boat2.getSog());
boat.setLatitude(boat.getLongitude());
boat.setLatitude(boat.getLatitude());
Msg msg2 = boatHistoryService.insert(boat);
System.out.print(msg2.getMsg());
boatMapper.updateByPrimaryKey(boat);
/*if(PlaceChange(boat, boat.getLongitude(), boat.getLatitude())){
boat.setLongitude(boat.getLongitude());
boat.setLatitude(boat.getLatitude());
int result = boatService.updateByPrimaryKey(boat);
System.out.print(result);
} else {
System.out.print("位置没有改变");
} */
}
}
/**消息19数据解析*/
public static void Data_analyze_m19(String AISMessage) //消息19数据解析
{
int i=0, j=0;
Boat boat = new Boat();
String temp1;
String temp2;
String temp3;
String temp4;
// String AISMessage = null;
String MMSI_OUT;
String temp_MMSI;
String temp_BaseShipMMSI = null;
MMSI_enable = 0;
//temp_MMSI = textBox5.Text; //读取目前跟踪的用户船MMSI码
//temp_BaseShipMMSI = textBox18.Text; //读取当前基站船的MMSI码
AISMessage += "\r\n\r\n";
AISMessage += "解析后的数据如下:\r\n\r\n";
// 二进制数据向有效数据转换
char data_tr_bin = 0; //二进制数据中间变量初始化
int data_tr_valid = 0; //有效数据中间变量初始化
int count_s = 0; //数据位起
// 提取消息识别码
int message_identifier; //消息识别码
int digit_num = 6; //消息识别码的位数为6位
int count_e = count_s + digit_num - 1; //计算数据终止位
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
message_identifier = data_tr_valid;
if (message_identifier == 19)
{
AISMessage += "消息识别码: ";
AISMessage += message_identifier;
AISMessage += " 即 消息类型为“扩展B类设备位置报告”。\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取消息识别码)
// 提取转发指示符
int transpond_indicate; //转发指示符
digit_num = 2; //转发指示符的位数为2位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
transpond_indicate = data_tr_valid;
AISMessage += "转发指示符: ";
AISMessage += transpond_indicate;
AISMessage += " 即 该条消息被转发的次数为:";
AISMessage += transpond_indicate;
AISMessage += " 次。\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取转发指示符)
// 提取用户识别码,即MMSI码
int MMSI; //用户识别码
digit_num = 30; //用户识别码,即MMSI码的位数为30位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
MMSI = data_tr_valid;
AISMessage += "用户识别码(即MMSI码): ";
AISMessage += MMSI;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
MMSI_OUT = String.valueOf(MMSI); //提取当前信息的MMSI码,用于船舶识别
// END(提取用户识别码,即MMSI码)
// 提取为地区或区域应用保留
digit_num = 8; //为地区或区域应用保留的位数为8位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
AISMessage += "为地区性应用所保留: ";
AISMessage += data_tr_valid;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取为地区或区域应用保留)
// 提取对地航速
double speed_over_ground; //对地航速
digit_num = 10; //对地航速的位数为10位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
speed_over_ground = (float)(data_tr_valid) / 10;
AISMessage += "对地航速: ";
AISMessage += speed_over_ground;
boat.setSog(speed_over_ground+"kn");
AISMessage += " kn";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取对地航速)
// 提取船位精确度
int position_accuracy; //船位精确度
digit_num = 1; //船位精确度的位数为1位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
position_accuracy = data_tr_valid;
AISMessage += "船位精确度: ";
AISMessage += position_accuracy;
if (data_tr_valid == 1)
AISMessage += " 即 高精度(<10m,DGNSS接收机的差分模式)";
else if (data_tr_valid == 0)
AISMessage += " 即 低精度(>10m,GNSS接收机或其他电子定位装置的自主模式)";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取船位精确度)
// 提取经度
double longitude; //经度
digit_num = 28; //经度的位数为28位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
int hour;
int minute;
double second;
if (sum_binary[count_s] != '1')
{
//("经度是正数,即东经\n");
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
//System.out.print("原始经度数据:"+data_tr_valid);
}
longitude = (float)(data_tr_valid) / 10000;
hour = (int)(data_tr_valid / 10000 / 60);
minute = (int)(longitude - hour * 60);
second = (longitude - hour * 60 - minute) * 60;
RecentLongitude = longitude / 60; //将经度信息传递给全局变量,单位为度
AISMessage += "经度: ";
AISMessage += "东经 ";
AISMessage += hour;
AISMessage += "度";
AISMessage += hour;
AISMessage += "分";
AISMessage += second;
AISMessage += "秒";
AISMessage += "\r\n";
}
else if (sum_binary[count_s] == '1')
{
//("经度是负数,即西经\n");
for (i = count_s + 1; i <= count_e; i++)
{
if (sum_binary[i] == '0')
data_tr_bin = '1';
else
data_tr_bin = '0';
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
//System.out.print("原始经度数据:"+data_tr_valid);
}
data_tr_valid = data_tr_valid + 1; //经度的绝对值
longitude = (float)(data_tr_valid) / 10000;
hour = (int)(data_tr_valid / 10000 / 60);
minute = (int)(longitude - hour * 60);
second = (longitude - hour * 60 - minute) * 60;
longitude = -longitude; //经度的真实值
RecentLongitude = longitude / 60; //将经度信息传递给全局变量
AISMessage += "经度: ";
AISMessage += "西经 ";
AISMessage += hour;
AISMessage += "度";
AISMessage += minute;
AISMessage += "分";
AISMessage += second;
AISMessage += "秒";
AISMessage += "\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取经度)
// 提取纬度
double latitude; //纬度
digit_num = 27; //纬度的位数为27位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
System.out.print("18经度终止位数,count_e:" + count_e+ ",count_s:"+ count_s + ",data_tr_bin" + data_tr_bin);
if (sum_binary[count_s] != '1')
{
//("纬度是正数,即北纬\n");
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
latitude = (float)(data_tr_valid) / 10000;
hour = (int)(data_tr_valid / 10000 / 60);
minute = (int)(latitude - hour * 60);
second = (latitude - hour * 60 - minute) * 60;
RecentLatitude = latitude / 60; //将当前纬度传递给全局变量
AISMessage += "纬度: ";
AISMessage += "北纬 ";
AISMessage += hour;
AISMessage += "度";
AISMessage += minute;
AISMessage += "分";
AISMessage += second;
AISMessage += "秒";
AISMessage += "\r\n";
}
else if (sum_binary[count_s] == '1')
{
//("纬度是负数,即南纬\n");
for (i = count_s + 1; i <= count_e; i++)
{
if (sum_binary[i] == '0')
data_tr_bin = '1';
else
data_tr_bin = '0';
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
//System.out.print("原始经度数据:"+data_tr_valid);
}
data_tr_valid = data_tr_valid + 1; //纬度的绝对值
latitude = (float)(data_tr_valid) / 10000;
hour = (int)(data_tr_valid / 10000 / 60);
minute = (int)(latitude - hour * 60);
second = (latitude - hour * 60 - minute) * 60;
latitude = -latitude; //纬度的真实值
RecentLatitude = latitude / 60; //将当前纬度传递给全局变量
AISMessage += "纬度: ";
AISMessage += "北纬 ";
AISMessage += hour;
AISMessage += "度";
AISMessage += minute;
AISMessage += "分";
AISMessage += second;
AISMessage += "秒";
AISMessage += "\r\n";
}
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取纬度)
// 提取对地航向
double course_over_the_ground;
digit_num = 12; //对地航向的位数为12位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
course_over_the_ground = (float)(data_tr_valid) / 10;
AISMessage += "对地航向: ";
AISMessage += course_over_the_ground;
boat.setCog(course_over_the_ground+"度");
AISMessage += "度";
if (course_over_the_ground >= 360)
AISMessage += " 即 默认值(不可用)";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取对地航向)
// 提取真航向
int true_course; //真航向
digit_num = 9; //真航向的位数为9位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
true_course = data_tr_valid;
AISMessage += "真航向: ";
AISMessage += true_course;
AISMessage += "度";
if (true_course == 511)
AISMessage += " 即 默认值(不可用)";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取真航向)
// 提取时间标记
int time_marker; //时间标记
digit_num = 6; //时间标记的位数为6位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
time_marker = data_tr_valid;
AISMessage += "时间标记: ";
AISMessage += "报告产生时的UTC秒: ";
AISMessage += time_marker;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取时间标记)
// 提取为地区性应用所保留
digit_num = 4; //为地区性应用所保留的位数为4位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
AISMessage += "为地区性应用所保留: ";
AISMessage += data_tr_valid;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取为地区性应用所保留)
// 提取名称
char ASC_trans; //ASC码转换中间变量
digit_num = 120; //名称的位数为120位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
AISMessage += "名称: ";
for (i = count_s; i <= count_e; i++)
{
for (j = 0; j < 6; j++)
{
data_tr_bin = sum_binary[i + j];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, 5 - j));
}
ASC_trans = six_to_eight_ASC(data_tr_valid);
data_tr_valid = 0;
AISMessage += ASC_trans;
i = i + 5;
}
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取名称)
// 提取船舶及载货类型
int ship_type;
int ship_type_A; //船舶类型的第一个字符
int ship_type_B; //船舶类型的第二个字符
digit_num = 8; //船舶及载货类型的位数为8位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
ship_type = data_tr_valid;
AISMessage += "船舶及载货类型: ";
AISMessage += ship_type;
ship_type_A = (int)(ship_type / 10);
ship_type_B = ship_type - ship_type_A * 10;
if (ship_type_A == 5)
{
switch (ship_type)
{
case 50:
AISMessage += " 即 领航船";
break;
case 51:
AISMessage += " 即 搜救船";
break;
case 52:
AISMessage += " 即 拖轮";
break;
case 53:
AISMessage += " 即 港口供应船";
break;
case 54:
AISMessage += " 即 载有防污染装置和设备的船舶";
break;
case 55:
AISMessage += " 即 执法船";
break;
case 56:
AISMessage += " 即 备用一分配给当地船舶使用";
break;
case 57:
AISMessage += " 即 备用一分配给当地船舶使用";
break;
case 58:
AISMessage += " 即 医疗船(如1949年日内瓦公约及附加条款所规定)";
break;
case 59:
AISMessage += " 即 符合《无线电规则》第18号决议(Mob-83)的船舶";
break;
default:
break;
}
}
if (ship_type_A == 3)
{
switch (ship_type_B)
{
case 0:
AISMessage += " 即 从事捕鱼的船舶";
break;
case 1:
AISMessage += " 即 从事拖带作业的船舶";
break;
case 2:
AISMessage += " 即 从事拖带作业,且拖带长度超过200m,或宽度超过25m的船舶";
break;
case 3:
AISMessage += " 即 从事疏浚或水下作业的船舶";
break;
case 4:
AISMessage += " 即 从事潜水作业的船舶";
break;
case 5:
AISMessage += " 即 参与军事行动的船舶";
break;
case 6:
AISMessage += " 即 驶帆航行的船舶";
break;
case 7:
AISMessage += " 即 娱乐船";
break;
case 8:
AISMessage += " 即 为将来使用保留";
break;
case 9:
AISMessage += " 即 为将来使用保留";
break;
default:
break;
}
}
switch (ship_type_A)
{
case 1:
AISMessage += " 即 为将来使用保留";
break;
case 2:
AISMessage += " 即 地效应船";
break;
case 4:
AISMessage += " 即 高速船";
break;
case 6:
AISMessage += " 即 客船";
break;
case 7:
AISMessage += " 即 货船";
break;
case 8:
AISMessage += " 即 油轮";
break;
case 9:
AISMessage += " 即 其他类型的船舶";
break;
default:
break;
}
if (ship_type_A != 3 && ship_type_A != 5)
{
switch (ship_type_B)
{
case 0:
AISMessage += " 这一类型的所有船舶";
break;
case 1:
AISMessage += " 载有危险品(DG),有害物质(HS)或海上污染物,属IMO规定的A类有害或污染物质";
break;
case 2:
AISMessage += " 载有危险品,有害物质或海上污染物(MP),属IMO规定的B类有害或污染物质";
break;
case 3:
AISMessage += " 载有危险品,有害物质或海上污染物,属IMO规定的C类有害或污染物质";
break;
case 4:
AISMessage += " 载有危险品,有害物质或海上污染物,属IMO规定的D类有害或污染物质";
break;
case 9:
AISMessage += " 无附加信息";
break;
default:
AISMessage += " 为将来使用保留";
break;
}
}
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取船舶及载货类型)
// 提取船舶尺度/位置参照
int ship_size_A;
int ship_size_B;
int ship_size_C;
int ship_size_D;
digit_num = 30; //船舶尺度/位置参照的位数为30位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
AISMessage += "船舶尺度/位置参照: ";
for (i = count_s; i <= (count_s + 8); i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, 8 + count_s - i));
}
ship_size_A = data_tr_valid;
count_s = count_s + 9;
data_tr_valid = 0;
AISMessage += "距船首 ";
AISMessage += ship_size_A;
AISMessage += " m;";
for (i = count_s; i <= (count_s + 8); i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, 8 + count_s - i));
}
ship_size_B = data_tr_valid;
count_s = count_s + 9;
data_tr_valid = 0;
AISMessage += "距船尾 ";
AISMessage += ship_size_B;
AISMessage += " m;";
for (i = count_s; i <= (count_s + 5); i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, 5 + count_s - i));
}
ship_size_C = data_tr_valid;
count_s = count_s + 6;
data_tr_valid = 0;
AISMessage += "距左舷 ";
AISMessage += ship_size_C;
AISMessage += " m;";
for (i = count_s; i <= (count_s + 5); i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, 5 + count_s - i));
}
ship_size_D = data_tr_valid;
AISMessage += "距右舷 ";
AISMessage += ship_size_D;
AISMessage += " m;";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取船舶尺度/位置参照)
// 提取电子定位装置类型
int locate_type;
digit_num = 4; //电子定位装置类型的位数为4位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
locate_type = data_tr_valid;
AISMessage += "电子定位装置类型: ";
AISMessage += locate_type;
switch (locate_type)
{
case 0:
AISMessage += " 即 未定义(预设)";
break;
case 1:
AISMessage += " 即 GPS";
break;
case 2:
AISMessage += " 即 GLONASS";
break;
case 3:
AISMessage += " 即 组合 GPS/GLONASS";
break;
case 4:
AISMessage += " 即 罗兰";
break;
case 5:
AISMessage += " 即 Chayka";
break;
case 6:
AISMessage += " 即 综合导航系统";
break;
case 7:
AISMessage += " 即 观测";
break;
default:
AISMessage += " 即 不用";
break;
}
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取电子定位装置类型)
// 提取RAIM标志
int RAIM; //RAIM标志
digit_num = 1; //RAIM标志的位数为1位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
RAIM = data_tr_valid;
AISMessage += "RAIM标志: ";
AISMessage += RAIM;
if (RAIM == 1)
AISMessage += " 即 RAIM使用";
else
AISMessage += " 即 RAIM未使用(默认)";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取RAIM标志)
// 提取数据终端设备指示符
int data_sys;
digit_num = 1; //数据终端设备指示符的位数为1位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
//System.out.print("原始经度数据:"+data_tr_valid);
}
data_sys = data_tr_valid;
AISMessage += "数据终端设备指示符: ";
AISMessage += data_sys;
if (data_sys == 0)
AISMessage += " 即 数据终端设备可用";
else
AISMessage += " 即 数据终端设备不可用(默认)";
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取数据终端设备指示符)
// 提取备用位
digit_num = 5; //备用位的位数为1位
count_e = count_s + digit_num - 1; //计算数据终止位
data_tr_valid = 0;
for (i = count_s; i <= count_e; i++)
{
data_tr_bin = sum_binary[i];
data_tr_valid = data_tr_valid + (data_tr_bin - '0') * (int)(Math.pow(2, count_e - i));
}
AISMessage += "备用位: ";
AISMessage += data_tr_valid;
AISMessage += "\r\n";
count_s = count_e + 1; //提取完毕后,重置数据位起始值
// END(提取备用位)
//if (MMSI_OUT == temp_MMSI) //如果该条信息是选中的用户船舶信息,则可进行参数提取和方位计算
if (sen_f == 2)
{
AISMessage += "\r\n";
AISMessage += "该条信息是选中的用户船舶信息,可进行参数提取和方位计算";
MMSI_enable = 1;
//textBox5.Clear();
//textBox5.Text = MMSI_OUT;
temp1 = String.valueOf(speed_over_ground);
//textBox19.Clear();
//textBox19.Text = temp1;
temp2 = String.valueOf(RecentLongitude);
//temp2 = RecentLongitude.ToString();
//textBox22.Clear(); //清空“船舶信息显示的经度”窗口
// textBox22.Text = temp2;
ShipLongitude = RecentLongitude;
temp3 = String.valueOf(RecentLatitude);
//temp3 = RecentLatitude.ToString();
//textBox20.Clear(); //清空“船舶信息显示的纬度”窗口
//textBox20.Text = temp3;
ShipLatitude = RecentLatitude;
RecentCourse = course_over_the_ground; //将对地航向信息传递给全局变量
//RecentCourse=true_course; //将真航向信息传递给全局变量
if (RecentCourse >= 0 && RecentCourse < 360)
{
temp4 = String.valueOf(RecentCourse);
}
else
{
RecentCourse = 0; //当航向信息不可用时,则指向角的计算将不考虑航向信息
temp4 = "不可用";
}
/*
if(RecentCourse!=511)
{
temp4.Format( "%d",RecentCourse);
}
else
{
RecentCourse=0;
temp4="不可用";
}
*/
//textBox21.Clear(); //清空“船舶信息显示的真航向”窗口
//textBox21.Text = temp4;
}
else if (MMSI_OUT == temp_BaseShipMMSI) //如果该条信息是跟踪的基站船舶信息,则可进行参数提取和方位计算
{
AISMessage += "\r\n";
AISMessage += "该条信息是跟踪的基站船舶信息,则可进行参数提取和方位计算";
MMSI_enable = 2;
temp2 = String.valueOf(RecentLongitude);
//temp2 = RecentLongitude.ToString();
//textBox17.Clear(); //清空“船载基站信息显示的经度”窗口
//textBox17.Text = temp2;
BaseLongitude = RecentLongitude;
temp3 = String.valueOf(RecentLatitude);
//temp3 = RecentLatitude.ToString();
//textBox15.Clear(); //清空“船载基站信息显示的纬度”窗口
//textBox15.Text = temp3;
BaseLatitude = RecentLatitude;
}
else //如果该条语句不是选中船舶(用户船或基站船)的信息,则无需进行参数提取和方位计算
{
AISMessage += "\r\n";
AISMessage += "该条信息不是选中的船舶信息,无需进行方位计算";
MMSI_enable = 0;
}
AISLog.logInfo(AIS_Analyse.class, "Analysie19,"+"经度:"+RecentLongitude+",纬度:"+RecentLatitude+",mmsi:"+MMSI+",航速:"+boat.getCog()+",航向:"+boat.getSog());
System.out.println("经度:"+RecentLongitude+",纬度:"+RecentLatitude+",mmsi:"+MMSI);
boat.setLongitude(String.valueOf(RecentLongitude));
boat.setLatitude(String.valueOf(RecentLatitude));
boat.setMmsiId(String.valueOf(MMSI));
BoatData(boat);
System.out.println(AISMessage);
}
/**ASC码转换函数*/
public static char six_to_eight_ASC(int t)
{
char code = '\0';
switch (t)
{
case 0:
code = '@';
break;
case 1:
code = 'A';
break;
case 2:
code = 'B';
break;
case 3:
code = 'C';
break;
case 4:
code = 'D';
break;
case 5:
code = 'E';
break;
case 6:
code = 'F';
break;
case 7:
code = 'G';
break;
case 8:
code = 'H';
break;
case 9:
code = 'I';
break;
case 10:
code = 'J';
break;
case 11:
code = 'K';
break;
case 12:
code = 'L';
break;
case 13:
code = 'M';
break;
case 14:
code = 'N';
break;
case 15:
code = 'O';
break;
case 16:
code = 'P';
break;
case 17:
code = 'Q';
break;
case 18:
code = 'R';
break;
case 19:
code = 'S';
break;
case 20:
code = 'T';
break;
case 21:
code = 'U';
break;
case 22:
code = 'V';
break;
case 23:
code = 'W';
break;
case 24:
code = 'X';
break;
case 25:
code = 'Y';
break;
case 26:
code = 'Z';
break;
case 27:
code = ' ';
break;
case 28:
code = ' ';
break;
case 29:
code = ' ';
break;
case 30:
code = '^';
break;
case 31:
code = '_';
break;
case 32:
code = ' ';
break;
case 33:
code = '!';
break;
case 34:
code = '“';
break;
case 35:
code = '#';
break;
case 36:
code = '$';
break;
case 37:
code = '%';
break;
case 38:
code = '&';
break;
case 39:
code = '‘';
break;
case 40:
code = '(';
break;
case 41:
code = ')';
break;
case 42:
code = '*';
break;
case 43:
code = '+';
break;
case 44:
code = ',';
break;
case 45:
code = '—';
break;
case 46:
code = '.';
break;
case 47:
code = '/';
break;
case 48:
code = '0';
break;
case 49:
code = '1';
break;
case 50:
code = '2';
break;
case 51:
code = '3';
break;
case 52:
code = '4';
break;
case 53:
code = '5';
break;
case 54:
code = '6';
break;
case 55:
code = '7';
break;
case 56:
code = '8';
break;
case 57:
code = '9';
break;
case 58:
code = ':';
break;
case 59:
code = ';';
break;
case 60:
code = '<';
break;
case 61:
code = '=';
break;
case 62:
code = '>';
break;
case 63:
code = '?';
break;
default:
break;
}
return code;
}
}