[866] | 1 | // Part of BNC, a utility for retrieving decoding and
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| 2 | // converting GNSS data streams from NTRIP broadcasters.
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| 3 | //
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| 4 | // Copyright (C) 2007
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| 5 | // German Federal Agency for Cartography and Geodesy (BKG)
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| 6 | // http://www.bkg.bund.de
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| 7 | // Czech Technical University Prague, Department of Geodesy
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| 8 | // http://www.fsv.cvut.cz
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| 9 | //
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| 10 | // Email: euref-ip@bkg.bund.de
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| 11 | //
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| 12 | // This program is free software; you can redistribute it and/or
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| 13 | // modify it under the terms of the GNU General Public License
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| 14 | // as published by the Free Software Foundation, version 2.
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| 15 | //
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| 16 | // This program is distributed in the hope that it will be useful,
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| 17 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | // GNU General Public License for more details.
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| 20 | //
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| 21 | // You should have received a copy of the GNU General Public License
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| 22 | // along with this program; if not, write to the Free Software
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| 23 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 24 |
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| 25 | /* -------------------------------------------------------------------------
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| 26 | * BKG NTRIP Client
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| 27 | * -------------------------------------------------------------------------
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| 28 | *
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| 29 | * Class: RTCM3coDecoder
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| 30 | *
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| 31 | * Purpose: RTCM3 Clock Orbit Decoder
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| 32 | *
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| 33 | * Author: L. Mervart
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| 34 | *
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| 35 | * Created: 05-May-2008
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| 36 | *
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| 37 | * Changes:
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| 38 | *
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| 39 | * -----------------------------------------------------------------------*/
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| 40 |
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[868] | 41 | #include <stdio.h>
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[920] | 42 | #include <math.h>
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[868] | 43 |
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[866] | 44 | #include "RTCM3coDecoder.h"
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[918] | 45 | #include "bncutils.h"
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[934] | 46 | #include "bncrinex.h"
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[936] | 47 | #include "bncapp.h"
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[1535] | 48 | #include "bncsettings.h"
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[866] | 49 |
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| 50 | using namespace std;
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| 51 |
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| 52 | // Constructor
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| 53 | ////////////////////////////////////////////////////////////////////////////
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[970] | 54 | RTCM3coDecoder::RTCM3coDecoder(const QString& staID) {
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[934] | 55 |
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[970] | 56 | _staID = staID;
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| 57 |
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[934] | 58 | // File Output
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| 59 | // -----------
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[1535] | 60 | bncSettings settings;
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[934] | 61 | QString path = settings.value("corrPath").toString();
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| 62 | if (!path.isEmpty()) {
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| 63 | expandEnvVar(path);
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| 64 | if ( path.length() > 0 && path[path.length()-1] != QDir::separator() ) {
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| 65 | path += QDir::separator();
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| 66 | }
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[970] | 67 | _fileNameSkl = path + staID;
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[934] | 68 | }
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[1582] | 69 | _out = 0;
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| 70 | _GPSweeks = -1.0;
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[934] | 71 |
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[974] | 72 | connect(this, SIGNAL(newCorrLine(QString, QString, long)),
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| 73 | (bncApp*) qApp, SLOT(slotNewCorrLine(QString, QString, long)));
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[866] | 74 | }
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| 75 |
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| 76 | // Destructor
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| 77 | ////////////////////////////////////////////////////////////////////////////
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| 78 | RTCM3coDecoder::~RTCM3coDecoder() {
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[935] | 79 | delete _out;
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[866] | 80 | }
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| 81 |
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[934] | 82 | // Reopen Output File
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| 83 | ////////////////////////////////////////////////////////////////////////
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| 84 | void RTCM3coDecoder::reopen() {
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| 85 |
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| 86 | if (!_fileNameSkl.isEmpty()) {
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| 87 |
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[1535] | 88 | bncSettings settings;
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[934] | 89 |
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[1154] | 90 | QDateTime datTim = currentDateAndTimeGPS();
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[934] | 91 |
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| 92 | QString hlpStr = bncRinex::nextEpochStr(datTim,
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| 93 | settings.value("corrIntr").toString());
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| 94 |
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| 95 | QString fileName = _fileNameSkl
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| 96 | + QString("%1").arg(datTim.date().dayOfYear(), 3, 10, QChar('0'))
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[938] | 97 | + hlpStr + datTim.toString(".yyC");
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[934] | 98 |
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| 99 | if (_fileName == fileName) {
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| 100 | return;
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| 101 | }
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| 102 | else {
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| 103 | _fileName = fileName;
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| 104 | }
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| 105 |
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| 106 | delete _out;
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| 107 | _out = new ofstream( _fileName.toAscii().data() );
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| 108 | }
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| 109 | }
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| 110 |
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[866] | 111 | //
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| 112 | ////////////////////////////////////////////////////////////////////////////
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[1227] | 113 | t_irc RTCM3coDecoder::Decode(char* buffer, int bufLen, vector<string>& errmsg) {
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[868] | 114 |
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[1218] | 115 | errmsg.clear();
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| 116 |
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[1227] | 117 | _buffer.append(QByteArray(buffer,bufLen));
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[868] | 118 |
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[1023] | 119 | t_irc retCode = failure;
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| 120 |
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[869] | 121 | while (true) {
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[908] | 122 |
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| 123 | memset(&_co, 0, sizeof(_co));
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[906] | 124 |
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[879] | 125 | int bytesused = 0;
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| 126 | GCOB_RETURN irc = GetClockOrbitBias(&_co, &_bias, _buffer.data(),
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| 127 | _buffer.size(), &bytesused);
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| 128 |
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[906] | 129 | // Not enough Data
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| 130 | // ---------------
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[879] | 131 | if (irc == GCOBR_SHORTBUFFER ||
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[906] | 132 | irc == GCOBR_MESSAGEEXCEEDSBUFFER) {
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[1582] | 133 | if (retCode != success) {
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| 134 | _GPSweeks = -1.0;
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| 135 | }
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[1023] | 136 | return retCode;
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[869] | 137 | }
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[879] | 138 |
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[906] | 139 | // Message correctly decoded
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| 140 | // -------------------------
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[908] | 141 | else if ( (irc == GCOBR_OK || irc == GCOBR_MESSAGEFOLLOWS) &&
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| 142 | bytesused > 0) {
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[881] | 143 | reopen();
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[918] | 144 |
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| 145 | int GPSweek;
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[1582] | 146 | currentGPSWeeks(GPSweek, _GPSweeks);
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[919] | 147 | if (_co.NumberOfGPSSat > 0) {
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[1582] | 148 | if (_GPSweeks > _co.GPSEpochTime + 86400.0) {
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[919] | 149 | GPSweek += 1;
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| 150 | }
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[1582] | 151 | else if (_GPSweeks < _co.GPSEpochTime - 86400.0) {
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[919] | 152 | GPSweek -= 1;
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| 153 | }
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[1582] | 154 | _GPSweeks = _co.GPSEpochTime;
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[918] | 155 | }
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[919] | 156 | else {
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[1582] | 157 | double GPSdaysec = fmod(_GPSweeks, 86400.0);
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| 158 | int weekDay = int((_GPSweeks - GPSdaysec) / 86400.0);
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[919] | 159 | if (GPSdaysec > _co.GLONASSEpochTime + 3600.0) {
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| 160 | weekDay += 1;
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| 161 | if (weekDay > 6) {
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| 162 | weekDay = 0;
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| 163 | GPSweek += 1;
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| 164 | }
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| 165 | }
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| 166 | else if (GPSdaysec < _co.GLONASSEpochTime - 3600.0) {
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| 167 | weekDay -= 1;
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| 168 | if (weekDay < 0) {
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| 169 | weekDay = 6;
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| 170 | GPSweek -= 1;
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| 171 | }
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| 172 | }
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[1582] | 173 | _GPSweeks = weekDay * 86400.0 + _co.GLONASSEpochTime;
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[918] | 174 | }
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| 175 |
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[869] | 176 | for(int ii = 0; ii < _co.NumberOfGPSSat; ++ii) {
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[875] | 177 | QString line;
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[971] | 178 | line.sprintf("%d %.1f G%2.2d %3d %8.3f %8.3f %8.3f %8.3f",
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[1582] | 179 | GPSweek, _GPSweeks, _co.Sat[ii].ID, _co.Sat[ii].IOD,
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[918] | 180 | _co.Sat[ii].Clock.DeltaA0,
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| 181 | _co.Sat[ii].Orbit.DeltaRadial,
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| 182 | _co.Sat[ii].Orbit.DeltaAlongTrack,
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[869] | 183 | _co.Sat[ii].Orbit.DeltaCrossTrack);
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[1582] | 184 | long coTime = GPSweek * 7*24*3600 + long(floor(_GPSweeks+0.5));
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[974] | 185 | printLine(line, coTime);
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[869] | 186 | }
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[903] | 187 | for(int ii = CLOCKORBIT_NUMGPS;
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| 188 | ii < CLOCKORBIT_NUMGPS + _co.NumberOfGLONASSSat; ++ii) {
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| 189 | QString line;
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[971] | 190 | line.sprintf("%d %.1f R%2.2d %3d %8.3f %8.3f %8.3f %8.3f",
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[1582] | 191 | GPSweek, _GPSweeks, _co.Sat[ii].ID, _co.Sat[ii].IOD,
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[918] | 192 | _co.Sat[ii].Clock.DeltaA0,
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| 193 | _co.Sat[ii].Orbit.DeltaRadial,
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| 194 | _co.Sat[ii].Orbit.DeltaAlongTrack,
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[903] | 195 | _co.Sat[ii].Orbit.DeltaCrossTrack);
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[1582] | 196 | long coTime = GPSweek * 7*24*3600 + long(floor(_GPSweeks+0.5));
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[974] | 197 | printLine(line, coTime);
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[903] | 198 | }
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[1222] | 199 | _buffer = _buffer.mid(bytesused);
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[1023] | 200 | retCode = success;
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[869] | 201 | }
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[879] | 202 |
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[906] | 203 | // All other Cases
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| 204 | // ---------------
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[869] | 205 | else {
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[1222] | 206 | _buffer = _buffer.mid(1);
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[869] | 207 | }
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[868] | 208 | }
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[866] | 209 | }
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[934] | 210 |
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| 211 | //
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| 212 | ////////////////////////////////////////////////////////////////////////////
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[974] | 213 | void RTCM3coDecoder::printLine(const QString& line, long coTime) {
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[934] | 214 | if (_out) {
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[971] | 215 | *_out << line.toAscii().data() << endl;
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[934] | 216 | _out->flush();
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| 217 | }
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| 218 |
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[974] | 219 | emit newCorrLine(line, _staID, coTime);
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[934] | 220 | }
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