[756] | 1 | /* -------------------------------------------------------------------------
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| 2 | * BKG NTRIP Server
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| 3 | * -------------------------------------------------------------------------
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| 4 | *
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| 5 | * Class: bns
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| 6 | *
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| 7 | * Purpose: This class implements the main application behaviour
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| 8 | *
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| 9 | * Author: L. Mervart
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| 10 | *
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| 11 | * Created: 29-Mar-2008
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| 12 | *
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| 13 | * Changes:
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| 14 | *
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| 15 | * -----------------------------------------------------------------------*/
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| 16 |
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[858] | 17 | #include <math.h>
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[756] | 18 | #include <iostream>
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[800] | 19 | #include <newmatio.h>
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[756] | 20 |
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| 21 | #include "bns.h"
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[799] | 22 | #include "bnsutils.h"
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[847] | 23 | #include "bnsrinex.h"
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[848] | 24 | #include "bnssp3.h"
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[862] | 25 | extern "C" {
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| 26 | #include "RTCM/clock_orbit_rtcm.h"
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| 27 | }
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[756] | 28 |
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| 29 | using namespace std;
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| 30 |
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| 31 | // Constructor
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| 32 | ////////////////////////////////////////////////////////////////////////////
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[757] | 33 | t_bns::t_bns(QObject* parent) : QThread(parent) {
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[760] | 34 |
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[764] | 35 | this->setTerminationEnabled(true);
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[828] | 36 |
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[836] | 37 | connect(this, SIGNAL(moveSocket(QThread*)),
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| 38 | this, SLOT(slotMoveSocket(QThread*)));
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| 39 |
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[828] | 40 | // Thread that handles broadcast ephemeris
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| 41 | // ---------------------------------------
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| 42 | _bnseph = new t_bnseph(parent);
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[827] | 43 |
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[828] | 44 | connect(_bnseph, SIGNAL(newEph(gpsEph*)), this, SLOT(slotNewEph(gpsEph*)));
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| 45 | connect(_bnseph, SIGNAL(newMessage(QByteArray)),
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| 46 | this, SLOT(slotMessage(const QByteArray)));
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| 47 | connect(_bnseph, SIGNAL(error(QByteArray)),
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| 48 | this, SLOT(slotError(const QByteArray)));
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[760] | 49 |
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[827] | 50 | // Server listening for rtnet results
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| 51 | // ----------------------------------
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[786] | 52 | QSettings settings;
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[828] | 53 | _clkSocket = 0;
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[827] | 54 | _clkServer = new QTcpServer;
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| 55 | _clkServer->listen(QHostAddress::Any, settings.value("clkPort").toInt());
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[828] | 56 | connect(_clkServer, SIGNAL(newConnection()),this, SLOT(slotNewConnection()));
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[827] | 57 |
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[828] | 58 | // Socket and file for outputting the results
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| 59 | // -------------------------------------------
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[858] | 60 | _outSocket = 0;
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| 61 | _outSocketOpenTrial = 0;
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[827] | 62 |
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[816] | 63 | QString outFileName = settings.value("outFile").toString();
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| 64 | if (outFileName.isEmpty()) {
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[833] | 65 | _outFile = 0;
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| 66 | _outStream = 0;
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[811] | 67 | }
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[816] | 68 | else {
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| 69 | _outFile = new QFile(outFileName);
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[817] | 70 | if (_outFile->open(QIODevice::WriteOnly | QIODevice::Unbuffered)) {
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[816] | 71 | _outStream = new QTextStream(_outFile);
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| 72 | }
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| 73 | }
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[812] | 74 |
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| 75 | // Log File
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| 76 | // --------
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[816] | 77 | QString logFileName = settings.value("logFile").toString();
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| 78 | if (logFileName.isEmpty()) {
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| 79 | _logFile = 0;
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[812] | 80 | }
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[816] | 81 | else {
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| 82 | _logFile = new QFile(logFileName);
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[817] | 83 | if (_logFile->open(QIODevice::WriteOnly | QIODevice::Unbuffered)) {
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[816] | 84 | _logStream = new QTextStream(_logFile);
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| 85 | }
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| 86 | }
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[847] | 87 |
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| 88 | // RINEX writer
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| 89 | // ------------
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| 90 | if ( settings.value("rnxPath").toString().isEmpty() ) {
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| 91 | _rnx = 0;
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| 92 | }
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| 93 | else {
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[850] | 94 | QString prep = "BNS";
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[857] | 95 | QString ext = ".clk";
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[850] | 96 | QString path = settings.value("rnxPath").toString();
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| 97 | QString intr = settings.value("rnxIntr").toString();
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| 98 | int sampl = settings.value("rnxSampl").toInt();
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| 99 | _rnx = new bnsRinex(prep, ext, path, intr, sampl);
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[847] | 100 | }
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[848] | 101 |
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| 102 | // SP3 writer
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| 103 | // ----------
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| 104 | if ( settings.value("sp3Path").toString().isEmpty() ) {
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| 105 | _sp3 = 0;
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| 106 | }
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| 107 | else {
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[850] | 108 | QString prep = "BNS";
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[857] | 109 | QString ext = ".sp3";
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[850] | 110 | QString path = settings.value("sp3Path").toString();
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| 111 | QString intr = settings.value("sp3Intr").toString();
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| 112 | int sampl = settings.value("sp3Sampl").toInt();
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| 113 | _sp3 = new bnsSP3(prep, ext, path, intr, sampl);
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[848] | 114 | }
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[756] | 115 | }
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| 116 |
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| 117 | // Destructor
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| 118 | ////////////////////////////////////////////////////////////////////////////
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[757] | 119 | t_bns::~t_bns() {
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[763] | 120 | deleteBnsEph();
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[769] | 121 | delete _clkServer;
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[837] | 122 | delete _clkSocket;
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[770] | 123 | delete _outSocket;
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[816] | 124 | delete _outStream;
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| 125 | delete _logStream;
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[812] | 126 | delete _outFile;
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| 127 | delete _logFile;
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[779] | 128 | QMapIterator<QString, t_ephPair*> it(_ephList);
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| 129 | while (it.hasNext()) {
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| 130 | it.next();
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| 131 | delete it.value();
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| 132 | }
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[849] | 133 | delete _rnx;
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| 134 | delete _sp3;
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[756] | 135 | }
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| 136 |
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[763] | 137 | // Delete bns thread
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| 138 | ////////////////////////////////////////////////////////////////////////////
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| 139 | void t_bns::deleteBnsEph() {
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| 140 | if (_bnseph) {
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| 141 | _bnseph->terminate();
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[764] | 142 | _bnseph->wait(100);
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[763] | 143 | delete _bnseph;
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| 144 | _bnseph = 0;
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| 145 | }
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| 146 | }
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| 147 |
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[756] | 148 | // Write a Program Message
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| 149 | ////////////////////////////////////////////////////////////////////////////
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[758] | 150 | void t_bns::slotMessage(const QByteArray msg) {
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[816] | 151 | if (_logStream) {
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| 152 | *_logStream << msg << endl;
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[818] | 153 | _logStream->flush();
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[812] | 154 | }
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[757] | 155 | emit(newMessage(msg));
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[756] | 156 | }
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| 157 |
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[760] | 158 | // Write a Program Message
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| 159 | ////////////////////////////////////////////////////////////////////////////
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| 160 | void t_bns::slotError(const QByteArray msg) {
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[816] | 161 | if (_logStream) {
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| 162 | *_logStream << msg << endl;
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[818] | 163 | _logStream->flush();
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[812] | 164 | }
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[763] | 165 | deleteBnsEph();
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[760] | 166 | emit(error(msg));
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| 167 | }
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| 168 |
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[769] | 169 | // New Connection
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| 170 | ////////////////////////////////////////////////////////////////////////////
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| 171 | void t_bns::slotNewConnection() {
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[786] | 172 | slotMessage("t_bns::slotNewConnection");
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[787] | 173 | delete _clkSocket;
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[769] | 174 | _clkSocket = _clkServer->nextPendingConnection();
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| 175 | }
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| 176 |
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[770] | 177 | // Start the Communication with NTRIP Caster
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| 178 | ////////////////////////////////////////////////////////////////////////////
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| 179 | void t_bns::openCaster() {
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[858] | 180 |
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| 181 | delete _outSocket; _outSocket = 0;
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| 182 |
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| 183 | double minDt = exp2(_outSocketOpenTrial);
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| 184 | if (++_outSocketOpenTrial > 8) {
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| 185 | _outSocketOpenTrial = 8;
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| 186 | }
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| 187 | if (_outSocketOpenTime.isValid() &&
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| 188 | _outSocketOpenTime.secsTo(QDateTime::currentDateTime()) < minDt) {
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| 189 | return;
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| 190 | }
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| 191 | else {
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| 192 | _outSocketOpenTime = QDateTime::currentDateTime();
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| 193 | }
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| 194 |
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[770] | 195 | QSettings settings;
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| 196 | _outSocket = new QTcpSocket();
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[811] | 197 | _outSocket->connectToHost(settings.value("outHost").toString(),
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| 198 | settings.value("outPort").toInt());
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[770] | 199 |
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[819] | 200 | const int timeOut = 100; // 0.1 seconds
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| 201 | if (!_outSocket->waitForConnected(timeOut)) {
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| 202 | delete _outSocket;
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| 203 | _outSocket = 0;
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| 204 | emit(error("bns::openCaster Connect Timeout"));
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[840] | 205 | return;
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[819] | 206 | }
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| 207 |
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[770] | 208 | QString mountpoint = settings.value("mountpoint").toString();
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| 209 | QString password = settings.value("password").toString();
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| 210 |
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| 211 | QByteArray msg = "SOURCE " + password.toAscii() + " /" +
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| 212 | mountpoint.toAscii() + "\r\n" +
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| 213 | "Source-Agent: NTRIP BNS/1.0\r\n\r\n";
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| 214 |
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| 215 | _outSocket->write(msg);
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[820] | 216 | _outSocket->waitForBytesWritten();
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[770] | 217 |
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[820] | 218 | _outSocket->waitForReadyRead();
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[770] | 219 | QByteArray ans = _outSocket->readLine();
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| 220 |
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| 221 | if (ans.indexOf("OK") == -1) {
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| 222 | delete _outSocket;
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| 223 | _outSocket = 0;
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[831] | 224 | slotMessage("bns::openCaster socket deleted");
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[770] | 225 | }
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[831] | 226 | else {
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| 227 | slotMessage("bns::openCaster socket OK");
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[858] | 228 | _outSocketOpenTrial = 0;
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[831] | 229 | }
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[770] | 230 | }
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| 231 |
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[784] | 232 | //
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| 233 | ////////////////////////////////////////////////////////////////////////////
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| 234 | void t_bns::slotNewEph(gpsEph* ep) {
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| 235 |
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| 236 | QMutexLocker locker(&_mutex);
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| 237 |
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| 238 | t_ephPair* pair;
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| 239 | if ( !_ephList.contains(ep->prn) ) {
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| 240 | pair = new t_ephPair();
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| 241 | _ephList.insert(ep->prn, pair);
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| 242 | }
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| 243 | else {
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| 244 | pair = _ephList[ep->prn];
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| 245 | }
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| 246 |
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| 247 | if (pair->eph == 0) {
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| 248 | pair->eph = ep;
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| 249 | }
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| 250 | else {
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| 251 | if (ep->GPSweek > pair->eph->GPSweek ||
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| 252 | (ep->GPSweek == pair->eph->GPSweek && ep->TOC > pair->eph->TOC)) {
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| 253 | delete pair->oldEph;
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| 254 | pair->oldEph = pair->eph;
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| 255 | pair->eph = ep;
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| 256 | }
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| 257 | else {
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| 258 | delete ep;
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| 259 | }
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| 260 | }
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| 261 | }
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| 262 |
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[756] | 263 | // Start
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| 264 | ////////////////////////////////////////////////////////////////////////////
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[757] | 265 | void t_bns::run() {
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[769] | 266 |
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[758] | 267 | slotMessage("============ Start BNS ============");
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[770] | 268 |
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[828] | 269 | // Start Thread that retrieves broadcast Ephemeris
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| 270 | // -----------------------------------------------
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[758] | 271 | _bnseph->start();
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[769] | 272 |
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[770] | 273 | // Endless loop
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| 274 | // ------------
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[769] | 275 | while (true) {
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[836] | 276 |
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| 277 | if (_clkSocket && _clkSocket->thread() != currentThread()) {
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| 278 | emit(moveSocket(currentThread()));
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| 279 | }
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| 280 |
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[796] | 281 | if (_clkSocket && _clkSocket->state() == QAbstractSocket::ConnectedState) {
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| 282 | if ( _clkSocket->canReadLine()) {
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[832] | 283 | if (_outSocket == 0 ||
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| 284 | _outSocket->state() != QAbstractSocket::ConnectedState) {
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[830] | 285 | openCaster();
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| 286 | }
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[796] | 287 | readEpoch();
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| 288 | }
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[809] | 289 | else {
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| 290 | _clkSocket->waitForReadyRead(10);
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| 291 | }
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[769] | 292 | }
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| 293 | else {
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[794] | 294 | msleep(10);
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[769] | 295 | }
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| 296 | }
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[756] | 297 | }
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| 298 |
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[778] | 299 | //
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| 300 | ////////////////////////////////////////////////////////////////////////////
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[784] | 301 | void t_bns::readEpoch() {
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[778] | 302 |
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[784] | 303 | QByteArray line = _clkSocket->readLine();
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[786] | 304 |
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[784] | 305 | if (line.indexOf('*') == -1) {
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| 306 | return;
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[778] | 307 | }
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| 308 |
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[784] | 309 | QTextStream in(line);
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| 310 |
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| 311 | QString hlp;
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[798] | 312 | int GPSweek, numSat;
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| 313 | double GPSweeks;
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[784] | 314 |
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[798] | 315 | in >> hlp >> GPSweek >> GPSweeks >> numSat;
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[784] | 316 |
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| 317 | for (int ii = 1; ii <= numSat; ii++) {
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[792] | 318 | line = _clkSocket->readLine();
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[791] | 319 |
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[784] | 320 | QTextStream in(line);
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| 321 |
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| 322 | QString prn;
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| 323 | ColumnVector xx(4);
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| 324 |
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[795] | 325 | in >> prn >> xx(1) >> xx(2) >> xx(3) >> xx(4);
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[797] | 326 | xx(4) *= 1e-6;
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[784] | 327 |
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[798] | 328 | processSatellite(GPSweek, GPSweeks, prn, xx);
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[780] | 329 | }
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[778] | 330 | }
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[784] | 331 |
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| 332 | //
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| 333 | ////////////////////////////////////////////////////////////////////////////
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[798] | 334 | void t_bns::processSatellite(int GPSweek, double GPSweeks, const QString& prn,
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[784] | 335 | const ColumnVector& xx) {
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| 336 |
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[795] | 337 | // No broadcast ephemeris available
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| 338 | // --------------------------------
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| 339 | if ( !_ephList.contains(prn) ) {
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| 340 | return;
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| 341 | }
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| 342 |
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| 343 | t_ephPair* pair = _ephList[prn];
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| 344 | gpsEph* ep = pair->eph;
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| 345 |
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[799] | 346 | ColumnVector xB(4);
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[802] | 347 | ColumnVector vv(3);
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[799] | 348 |
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[803] | 349 | satellitePosition(GPSweek, GPSweeks, ep, xB(1), xB(2), xB(3), xB(4),
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[802] | 350 | vv(1), vv(2), vv(3));
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[799] | 351 |
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[804] | 352 | ColumnVector dx = xx.Rows(1,3) - xB.Rows(1,3);
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| 353 | double dClk = (xx(4) - xB(4)) * 299792458.0;
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| 354 | ColumnVector rsw(3);
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[800] | 355 |
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[806] | 356 | XYZ_to_RSW(xB.Rows(1,3), vv, dx, rsw);
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[804] | 357 |
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[811] | 358 | QString line;
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[817] | 359 | line.sprintf("%d %.1f %s %3d %3d %8.3f %8.3f %8.3f %8.3f\n",
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[811] | 360 | GPSweek, GPSweeks, ep->prn.toAscii().data(),
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| 361 | int(ep->IODC), int(ep->IODE), dClk, rsw(1), rsw(2), rsw(3));
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| 362 |
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[816] | 363 | if (_outStream) {
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| 364 | *_outStream << line;
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[818] | 365 | _outStream->flush();
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[811] | 366 | }
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| 367 | if (_outSocket) {
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[862] | 368 | struct ClockOrbit co;
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| 369 | memset(&co, 0, sizeof(co));
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| 370 | co.GPSEpochTime = (int)GPSweeks;
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| 371 | co.ClockDataSupplied = 1;
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| 372 | co.OrbitDataSupplied = 1;
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| 373 | co.SatRefPoint = POINT_CENTER;
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| 374 | co.SatRefDatum = DATUM_ITRF;
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| 375 | co.NumberOfGPSSat = 1;
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| 376 |
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| 377 | struct ClockOrbit::SatData* sd = co.Sat;
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| 378 | /// sd->ID = prn;
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| 379 | sd->IOD = int(ep->IODE);
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| 380 | sd->Clock.DeltaA0 = dClk;
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| 381 | sd->Orbit.DeltaRadial = rsw(1);
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| 382 | sd->Orbit.DeltaAlongTrack = rsw(2);
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| 383 | sd->Orbit.DeltaCrossTrack = rsw(3);
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| 384 |
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| 385 | char obuffer[CLOCKORBIT_BUFFERSIZE];
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| 386 | int len = MakeClockOrbit(&co, COTYPE_AUTO, 0, obuffer, sizeof(obuffer));
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| 387 | if (len > 0) {
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| 388 | _outSocket->write(obuffer, len);
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| 389 | _outSocket->flush();
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| 390 | }
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[811] | 391 | }
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[847] | 392 | if (_rnx) {
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| 393 | _rnx->write(GPSweek, GPSweeks, prn, xx);
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| 394 | }
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[848] | 395 | if (_sp3) {
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| 396 | _sp3->write(GPSweek, GPSweeks, prn, xx);
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| 397 | }
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[784] | 398 | }
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[836] | 399 |
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| 400 | //
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| 401 | ////////////////////////////////////////////////////////////////////////////
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| 402 | void t_bns::slotMoveSocket(QThread* tt) {
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| 403 | _clkSocket->setParent(0);
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| 404 | _clkSocket->moveToThread(tt);
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| 405 | slotMessage("bns::slotMoveSocket");
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| 406 | }
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