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gnss-sdr/src/core/receiver/control_thread.cc
Carles Fernandez 5f79053d65
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2018-12-09 22:00:09 +01:00

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/*!
* \file control_thread.cc
* \brief This class implements the receiver control plane
* \author Carlos Aviles, 2010. carlos.avilesr(at)googlemail.com
*
* GNSS Receiver Control Plane: connects the flowgraph, starts running it,
* and while it does not stop, reads the control messages generated by the blocks,
* process them, and apply the corresponding actions.
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* GNSS-SDR is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNSS-SDR is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNSS-SDR. If not, see <https://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#include "control_thread.h"
#include "concurrent_map.h"
#include "concurrent_queue.h"
#include "control_message_factory.h"
#include "file_configuration.h"
#include "galileo_almanac.h"
#include "galileo_ephemeris.h"
#include "galileo_iono.h"
#include "galileo_utc_model.h"
#include "geofunctions.h"
#include "glonass_gnav_ephemeris.h"
#include "glonass_gnav_utc_model.h"
#include "gnss_flowgraph.h"
#include "gnss_sdr_flags.h"
#include "gps_almanac.h"
#include "gps_ephemeris.h"
#include "gps_iono.h"
#include "gps_utc_model.h"
#include "pvt_interface.h"
#include "rtklib_conversions.h"
#include "rtklib_ephemeris.h"
#include "rtklib_rtkcmn.h"
#include <boost/chrono.hpp>
#include <boost/lexical_cast.hpp>
#include <glog/logging.h>
#include <gnuradio/message.h>
#include <algorithm>
#include <cmath>
#include <iostream>
#include <limits>
#include <map>
#include <string>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/types.h>
extern concurrent_map<Gps_Acq_Assist> global_gps_acq_assist_map;
extern concurrent_queue<Gps_Acq_Assist> global_gps_acq_assist_queue;
using google::LogMessage;
ControlThread::ControlThread()
{
if (!FLAGS_c.compare("-"))
{
configuration_ = std::make_shared<FileConfiguration>(FLAGS_config_file);
}
else
{
configuration_ = std::make_shared<FileConfiguration>(FLAGS_c);
}
delete_configuration_ = false;
restart_ = false;
init();
}
ControlThread::ControlThread(std::shared_ptr<ConfigurationInterface> configuration)
{
configuration_ = configuration;
delete_configuration_ = false;
restart_ = false;
init();
}
void ControlThread::init()
{
// Instantiates a control queue, a GNSS flowgraph, and a control message factory
control_queue_ = gr::msg_queue::make(0);
cmd_interface_.set_msg_queue(control_queue_); //set also the queue pointer for the telecommand thread
try
{
flowgraph_ = std::make_shared<GNSSFlowgraph>(configuration_, control_queue_);
}
catch (const boost::bad_lexical_cast &e)
{
std::cout << "Caught bad lexical cast with error " << e.what() << std::endl;
}
control_message_factory_ = std::make_shared<ControlMessageFactory>();
stop_ = false;
processed_control_messages_ = 0;
applied_actions_ = 0;
supl_mcc = 0;
supl_mns = 0;
supl_lac = 0;
supl_ci = 0;
msqid = -1;
agnss_ref_location_ = Agnss_Ref_Location();
agnss_ref_time_ = Agnss_Ref_Time();
std::string empty_string = "";
std::string ref_location_str = configuration_->property("GNSS-SDR.AGNSS_ref_location", empty_string);
std::string ref_time_str = configuration_->property("GNSS-SDR.AGNSS_ref_utc_time", empty_string);
if (ref_location_str.compare(empty_string) != 0)
{
std::vector<double> vect;
std::stringstream ss(ref_location_str);
double d;
while (ss >> d)
{
vect.push_back(d);
if ((ss.peek() == ',') or (ss.peek() == ' '))
ss.ignore();
}
// fill agnss_ref_location_
if (vect.size() >= 2)
{
if ((vect[0] < 90.0) and (vect[0] > -90) and (vect[1] < 180.0) and (vect[1] > -180.0))
{
agnss_ref_location_.lat = vect[0];
agnss_ref_location_.lon = vect[1];
agnss_ref_location_.valid = true;
}
else
{
std::cerr << "GNSS-SDR.AGNSS_ref_location=" << ref_location_str << " is not a valid position." << std::endl;
agnss_ref_location_.valid = false;
}
}
}
if (ref_time_str.compare(empty_string) == 0)
{
// Make an educated guess
time_t rawtime;
time(&rawtime);
agnss_ref_time_.d_tv_sec = rawtime;
agnss_ref_time_.valid = true;
}
else
{
// fill agnss_ref_time_
struct tm tm = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, nullptr};
if (strptime(ref_time_str.c_str(), "%d/%m/%Y %H:%M:%S", &tm) != nullptr)
{
agnss_ref_time_.d_tv_sec = timegm(&tm);
if (agnss_ref_time_.d_tv_sec > 0)
{
agnss_ref_time_.valid = true;
}
else
{
std::cerr << "GNSS-SDR.AGNSS_ref_utc_time=" << ref_time_str << " is not well-formed. Please use four digits for the year: DD/MM/YYYY HH:MM:SS" << std::endl;
}
}
else
{
std::cerr << "GNSS-SDR.AGNSS_ref_utc_time=" << ref_time_str << " is not well-formed. Should be DD/MM/YYYY HH:MM:SS in UTC" << std::endl;
agnss_ref_time_.valid = false;
}
}
}
ControlThread::~ControlThread()
{
if (msqid != -1) msgctl(msqid, IPC_RMID, NULL);
}
void ControlThread::telecommand_listener()
{
int tcp_cmd_port = configuration_->property("GNSS-SDR.telecontrol_tcp_port", 3333);
cmd_interface_.run_cmd_server(tcp_cmd_port);
}
/*
* Runs the control thread that manages the receiver control plane
*
* This is the main loop that reads and process the control messages
* 1- Connect the GNSS receiver flowgraph
* 2- Start the GNSS receiver flowgraph
* while (flowgraph_->running() && !stop)_{
* 3- Read control messages and process them }
*/
int ControlThread::run()
{
// Connect the flowgraph
try
{
flowgraph_->connect();
}
catch (const std::exception &e)
{
LOG(ERROR) << e.what();
return 0;
}
if (flowgraph_->connected())
{
LOG(INFO) << "Flowgraph connected";
}
else
{
LOG(ERROR) << "Unable to connect flowgraph";
return 0;
}
// Start the flowgraph
flowgraph_->start();
if (flowgraph_->running())
{
LOG(INFO) << "Flowgraph started";
}
else
{
LOG(ERROR) << "Unable to start flowgraph";
return 0;
}
// launch GNSS assistance process AFTER the flowgraph is running because the GNU Radio asynchronous queues must be already running to transport msgs
assist_GNSS();
// start the keyboard_listener thread
keyboard_thread_ = boost::thread(&ControlThread::keyboard_listener, this);
sysv_queue_thread_ = boost::thread(&ControlThread::sysv_queue_listener, this);
// start the telecommand listener thread
cmd_interface_.set_pvt(flowgraph_->get_pvt());
cmd_interface_thread_ = boost::thread(&ControlThread::telecommand_listener, this);
bool enable_FPGA = configuration_->property("Channel.enable_FPGA", false);
if (enable_FPGA == true)
{
flowgraph_->start_acquisition_helper();
}
// Main loop to read and process the control messages
while (flowgraph_->running() && !stop_)
{
//TODO re-enable the blocking read messages functions and fork the process
read_control_messages();
if (control_messages_ != 0) process_control_messages();
}
std::cout << "Stopping GNSS-SDR, please wait!" << std::endl;
flowgraph_->stop();
stop_ = true;
flowgraph_->disconnect();
// Join keyboard thread
#ifdef OLD_BOOST
keyboard_thread_.timed_join(boost::posix_time::seconds(1));
sysv_queue_thread_.timed_join(boost::posix_time::seconds(1));
cmd_interface_thread_.timed_join(boost::posix_time::seconds(1));
#endif
#ifndef OLD_BOOST
keyboard_thread_.try_join_until(boost::chrono::steady_clock::now() + boost::chrono::milliseconds(1000));
sysv_queue_thread_.try_join_until(boost::chrono::steady_clock::now() + boost::chrono::milliseconds(1000));
cmd_interface_thread_.try_join_until(boost::chrono::steady_clock::now() + boost::chrono::milliseconds(1000));
#endif
LOG(INFO) << "Flowgraph stopped";
if (restart_)
{
return 42; // signal the gnss-sdr-harness.sh to restart the receiver program
}
return 0; // normal shutdown
}
void ControlThread::set_control_queue(gr::msg_queue::sptr control_queue)
{
if (flowgraph_->running())
{
LOG(WARNING) << "Unable to set control queue while flowgraph is running";
return;
}
control_queue_ = control_queue;
cmd_interface_.set_msg_queue(control_queue_);
}
/*
* Returns true if reading was successful
*/
bool ControlThread::read_assistance_from_XML()
{
// return variable (true == succeeded)
bool ret = false;
// getting names from the config file, if available
std::string eph_xml_filename = configuration_->property("GNSS-SDR.SUPL_gps_ephemeris_xml", eph_default_xml_filename);
std::string utc_xml_filename = configuration_->property("GNSS-SDR.SUPL_gps_utc_model_xml", utc_default_xml_filename);
std::string iono_xml_filename = configuration_->property("GNSS-SDR.SUPL_gps_iono_xml", iono_default_xml_filename);
std::string gal_iono_xml_filename = configuration_->property("GNSS-SDR.SUPL_gal_iono_xml", gal_iono_default_xml_filename);
std::string ref_time_xml_filename = configuration_->property("GNSS-SDR.SUPL_gps_ref_time_xml", ref_time_default_xml_filename);
std::string ref_location_xml_filename = configuration_->property("GNSS-SDR.SUPL_gps_ref_location_xml", ref_location_default_xml_filename);
std::string eph_gal_xml_filename = configuration_->property("GNSS-SDR.SUPL_gal_ephemeris_xml", eph_gal_default_xml_filename);
std::string eph_cnav_xml_filename = configuration_->property("GNSS-SDR.SUPL_gps_cnav_ephemeris_xml", eph_cnav_default_xml_filename);
std::string gal_utc_xml_filename = configuration_->property("GNSS-SDR.SUPL_gal_utc_model_xml", gal_utc_default_xml_filename);
std::string cnav_utc_xml_filename = configuration_->property("GNSS-SDR.SUPL_cnav_utc_model_xml", cnav_utc_default_xml_filename);
std::string eph_glo_xml_filename = configuration_->property("GNSS-SDR.SUPL_glo_ephemeris_xml", eph_glo_gnav_default_xml_filename);
std::string glo_utc_xml_filename = configuration_->property("GNSS-SDR.SUPL_glo_utc_model_xml", glo_utc_default_xml_filename);
std::string gal_almanac_xml_filename = configuration_->property("GNSS-SDR.SUPL_gal_almanac_xml", gal_almanac_default_xml_filename);
std::string gps_almanac_xml_filename = configuration_->property("GNSS-SDR.SUPL_gps_almanac_xml", gps_almanac_default_xml_filename);
if (configuration_->property("GNSS-SDR.AGNSS_XML_enabled", false) == true)
{
eph_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gps_ephemeris_xml", eph_default_xml_filename);
utc_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gps_utc_model_xml", utc_default_xml_filename);
iono_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gps_iono_xml", iono_default_xml_filename);
gal_iono_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gal_iono_xml", gal_iono_default_xml_filename);
ref_time_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gps_ref_time_xml", ref_time_default_xml_filename);
ref_location_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gps_ref_location_xml", ref_location_default_xml_filename);
eph_gal_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gal_ephemeris_xml", eph_gal_default_xml_filename);
eph_cnav_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gps_cnav_ephemeris_xml", eph_cnav_default_xml_filename);
gal_utc_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gal_utc_model_xml", gal_utc_default_xml_filename);
cnav_utc_xml_filename = configuration_->property("GNSS-SDR.AGNSS_cnav_utc_model_xml", cnav_utc_default_xml_filename);
eph_glo_xml_filename = configuration_->property("GNSS-SDR.AGNSS_glo_ephemeris_xml", eph_glo_gnav_default_xml_filename);
glo_utc_xml_filename = configuration_->property("GNSS-SDR.AGNSS_glo_utc_model_xml", glo_utc_default_xml_filename);
gal_almanac_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gal_almanac_xml", gal_almanac_default_xml_filename);
gps_almanac_xml_filename = configuration_->property("GNSS-SDR.AGNSS_gps_almanac_xml", gps_almanac_default_xml_filename);
}
std::cout << "Trying to read GNSS ephemeris from XML file(s)..." << std::endl;
if (configuration_->property("Channels_1C.count", 0) > 0)
{
if (supl_client_ephemeris_.load_ephemeris_xml(eph_xml_filename) == true)
{
std::map<int, Gps_Ephemeris>::const_iterator gps_eph_iter;
for (gps_eph_iter = supl_client_ephemeris_.gps_ephemeris_map.cbegin();
gps_eph_iter != supl_client_ephemeris_.gps_ephemeris_map.cend();
gps_eph_iter++)
{
std::cout << "From XML file: Read NAV ephemeris for satellite " << Gnss_Satellite("GPS", gps_eph_iter->second.i_satellite_PRN) << std::endl;
std::shared_ptr<Gps_Ephemeris> tmp_obj = std::make_shared<Gps_Ephemeris>(gps_eph_iter->second);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
ret = true;
}
if (supl_client_acquisition_.load_utc_xml(utc_xml_filename) == true)
{
std::shared_ptr<Gps_Utc_Model> tmp_obj = std::make_shared<Gps_Utc_Model>(supl_client_acquisition_.gps_utc);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
std::cout << "From XML file: Read GPS UTC model parameters." << std::endl;
ret = true;
}
if (supl_client_acquisition_.load_iono_xml(iono_xml_filename) == true)
{
std::shared_ptr<Gps_Iono> tmp_obj = std::make_shared<Gps_Iono>(supl_client_acquisition_.gps_iono);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
std::cout << "From XML file: Read GPS ionosphere model parameters." << std::endl;
ret = true;
}
if (supl_client_ephemeris_.load_gps_almanac_xml(gps_almanac_xml_filename) == true)
{
std::map<int, Gps_Almanac>::const_iterator gps_alm_iter;
for (gps_alm_iter = supl_client_ephemeris_.gps_almanac_map.cbegin();
gps_alm_iter != supl_client_ephemeris_.gps_almanac_map.cend();
gps_alm_iter++)
{
std::cout << "From XML file: Read GPS almanac for satellite " << Gnss_Satellite("GPS", gps_alm_iter->second.i_satellite_PRN) << std::endl;
std::shared_ptr<Gps_Almanac> tmp_obj = std::make_shared<Gps_Almanac>(gps_alm_iter->second);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
ret = true;
}
}
if ((configuration_->property("Channels_1B.count", 0) > 0) or (configuration_->property("Channels_5X.count", 0) > 0))
{
if (supl_client_ephemeris_.load_gal_ephemeris_xml(eph_gal_xml_filename) == true)
{
std::map<int, Galileo_Ephemeris>::const_iterator gal_eph_iter;
for (gal_eph_iter = supl_client_ephemeris_.gal_ephemeris_map.cbegin();
gal_eph_iter != supl_client_ephemeris_.gal_ephemeris_map.cend();
gal_eph_iter++)
{
std::cout << "From XML file: Read ephemeris for satellite " << Gnss_Satellite("Galileo", gal_eph_iter->second.i_satellite_PRN) << std::endl;
std::shared_ptr<Galileo_Ephemeris> tmp_obj = std::make_shared<Galileo_Ephemeris>(gal_eph_iter->second);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
ret = true;
}
if (supl_client_acquisition_.load_gal_iono_xml(gal_iono_xml_filename) == true)
{
std::shared_ptr<Galileo_Iono> tmp_obj = std::make_shared<Galileo_Iono>(supl_client_acquisition_.gal_iono);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
std::cout << "From XML file: Read Galileo ionosphere model parameters." << std::endl;
ret = true;
}
if (supl_client_acquisition_.load_gal_utc_xml(gal_utc_xml_filename) == true)
{
std::shared_ptr<Galileo_Utc_Model> tmp_obj = std::make_shared<Galileo_Utc_Model>(supl_client_acquisition_.gal_utc);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
std::cout << "From XML file: Read Galileo UTC model parameters." << std::endl;
ret = true;
}
if (supl_client_ephemeris_.load_gal_almanac_xml(gal_almanac_xml_filename) == true)
{
std::map<int, Galileo_Almanac>::const_iterator gal_alm_iter;
for (gal_alm_iter = supl_client_ephemeris_.gal_almanac_map.cbegin();
gal_alm_iter != supl_client_ephemeris_.gal_almanac_map.cend();
gal_alm_iter++)
{
std::cout << "From XML file: Read Galileo almanac for satellite " << Gnss_Satellite("Galileo", gal_alm_iter->second.i_satellite_PRN) << std::endl;
std::shared_ptr<Galileo_Almanac> tmp_obj = std::make_shared<Galileo_Almanac>(gal_alm_iter->second);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
ret = true;
}
}
if ((configuration_->property("Channels_2S.count", 0) > 0) or (configuration_->property("Channels_L5.count", 0) > 0))
{
if (supl_client_ephemeris_.load_cnav_ephemeris_xml(eph_cnav_xml_filename) == true)
{
std::map<int, Gps_CNAV_Ephemeris>::const_iterator gps_cnav_eph_iter;
for (gps_cnav_eph_iter = supl_client_ephemeris_.gps_cnav_ephemeris_map.cbegin();
gps_cnav_eph_iter != supl_client_ephemeris_.gps_cnav_ephemeris_map.cend();
gps_cnav_eph_iter++)
{
std::cout << "From XML file: Read CNAV ephemeris for satellite " << Gnss_Satellite("GPS", gps_cnav_eph_iter->second.i_satellite_PRN) << std::endl;
std::shared_ptr<Gps_CNAV_Ephemeris> tmp_obj = std::make_shared<Gps_CNAV_Ephemeris>(gps_cnav_eph_iter->second);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
ret = true;
}
if (supl_client_acquisition_.load_cnav_utc_xml(cnav_utc_xml_filename) == true)
{
std::shared_ptr<Gps_CNAV_Utc_Model> tmp_obj = std::make_shared<Gps_CNAV_Utc_Model>(supl_client_acquisition_.gps_cnav_utc);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
std::cout << "From XML file: Read GPS CNAV UTC model parameters." << std::endl;
ret = true;
}
}
if ((configuration_->property("Channels_1G.count", 0) > 0) or (configuration_->property("Channels_2G.count", 0) > 0))
{
if (supl_client_ephemeris_.load_gnav_ephemeris_xml(eph_glo_xml_filename) == true)
{
std::map<int, Glonass_Gnav_Ephemeris>::const_iterator glo_gnav_eph_iter;
for (glo_gnav_eph_iter = supl_client_ephemeris_.glonass_gnav_ephemeris_map.cbegin();
glo_gnav_eph_iter != supl_client_ephemeris_.glonass_gnav_ephemeris_map.cend();
glo_gnav_eph_iter++)
{
std::cout << "From XML file: Read GLONASS GNAV ephemeris for satellite " << Gnss_Satellite("GLONASS", glo_gnav_eph_iter->second.i_satellite_PRN) << std::endl;
std::shared_ptr<Glonass_Gnav_Ephemeris> tmp_obj = std::make_shared<Glonass_Gnav_Ephemeris>(glo_gnav_eph_iter->second);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
ret = true;
}
if (supl_client_acquisition_.load_glo_utc_xml(glo_utc_xml_filename) == true)
{
std::shared_ptr<Glonass_Gnav_Utc_Model> tmp_obj = std::make_shared<Glonass_Gnav_Utc_Model>(supl_client_acquisition_.glo_gnav_utc);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
std::cout << "From XML file: Read GLONASS UTC model parameters." << std::endl;
ret = true;
}
}
if (ret == false)
{
std::cout << "Error reading XML files" << std::endl;
std::cout << "Disabling GNSS assistance..." << std::endl;
}
// Only look for {ref time, ref location} if SUPL is enabled
bool enable_gps_supl_assistance = configuration_->property("GNSS-SDR.SUPL_gps_enabled", false);
if (enable_gps_supl_assistance == true)
{
// Try to read Ref Time from XML
if (supl_client_acquisition_.load_ref_time_xml(ref_time_xml_filename) == true)
{
LOG(INFO) << "SUPL: Read XML Ref Time";
std::shared_ptr<Agnss_Ref_Time> tmp_obj = std::make_shared<Agnss_Ref_Time>(supl_client_acquisition_.gps_time);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
else
{
LOG(INFO) << "SUPL: could not read Ref Time XML";
}
// Try to read Ref Location from XML
if (supl_client_acquisition_.load_ref_location_xml(ref_location_xml_filename) == true)
{
LOG(INFO) << "SUPL: Read XML Ref Location";
std::shared_ptr<Agnss_Ref_Location> tmp_obj = std::make_shared<Agnss_Ref_Location>(supl_client_acquisition_.gps_ref_loc);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
else
{
LOG(INFO) << "SUPL: could not read Ref Location XML";
}
}
return ret;
}
void ControlThread::assist_GNSS()
{
//######### GNSS Assistance #################################
// GNSS Assistance configuration
bool enable_gps_supl_assistance = configuration_->property("GNSS-SDR.SUPL_gps_enabled", false);
bool enable_agnss_xml = configuration_->property("GNSS-SDR.AGNSS_XML_enabled", false);
if ((enable_gps_supl_assistance == true) and (enable_agnss_xml == false))
{
std::cout << "SUPL RRLP GPS assistance enabled!" << std::endl;
std::string default_acq_server = "supl.google.com";
std::string default_eph_server = "supl.google.com";
supl_client_ephemeris_.server_name = configuration_->property("GNSS-SDR.SUPL_gps_ephemeris_server", default_acq_server);
supl_client_acquisition_.server_name = configuration_->property("GNSS-SDR.SUPL_gps_acquisition_server", default_eph_server);
supl_client_ephemeris_.server_port = configuration_->property("GNSS-SDR.SUPL_gps_ephemeris_port", 7275);
supl_client_acquisition_.server_port = configuration_->property("GNSS-SDR.SUPL_gps_acquisition_port", 7275);
supl_mcc = configuration_->property("GNSS-SDR.SUPL_MCC", 244);
supl_mns = configuration_->property("GNSS-SDR.SUPL_MNC ", 5);
std::string default_lac = "0x59e2";
std::string default_ci = "0x31b0";
std::string supl_lac_s = configuration_->property("GNSS-SDR.SUPL_LAC", default_lac);
std::string supl_ci_s = configuration_->property("GNSS-SDR.SUPL_CI", default_ci);
try
{
supl_lac = std::stoi(supl_lac_s, nullptr, 0);
}
catch (const std::invalid_argument &ia)
{
std::cerr << "Invalid argument for SUPL LAC: " << ia.what() << '\n';
supl_lac = -1;
}
try
{
supl_ci = std::stoi(supl_ci_s, nullptr, 0);
}
catch (const std::invalid_argument &ia)
{
std::cerr << "Invalid argument for SUPL CI: " << ia.what() << '\n';
supl_ci = -1;
}
if (supl_lac < 0 or supl_lac > 65535)
{
supl_lac = 0x59e2;
}
if (supl_ci < 0 or supl_ci > 268435455) // 2^16 for GSM and CDMA, 2^28 for UMTS and LTE networks
{
supl_ci = 0x31b0;
}
bool SUPL_read_gps_assistance_xml = configuration_->property("GNSS-SDR.SUPL_read_gps_assistance_xml", false);
if (SUPL_read_gps_assistance_xml == true)
{
// Read assistance from file
if (read_assistance_from_XML())
{
std::cout << "GNSS assistance data loaded from local XML file(s)." << std::endl;
std::cout << "No SUPL request has been performed." << std::endl;
}
}
else
{
// Request ephemeris from SUPL server
int error;
supl_client_ephemeris_.request = 1;
std::cout << "SUPL: Try to read GPS ephemeris data from SUPL server..." << std::endl;
error = supl_client_ephemeris_.get_assistance(supl_mcc, supl_mns, supl_lac, supl_ci);
if (error == 0)
{
std::map<int, Gps_Ephemeris>::const_iterator gps_eph_iter;
for (gps_eph_iter = supl_client_ephemeris_.gps_ephemeris_map.cbegin();
gps_eph_iter != supl_client_ephemeris_.gps_ephemeris_map.cend();
gps_eph_iter++)
{
std::cout << "SUPL: Received ephemeris data for satellite " << Gnss_Satellite("GPS", gps_eph_iter->second.i_satellite_PRN) << std::endl;
std::shared_ptr<Gps_Ephemeris> tmp_obj = std::make_shared<Gps_Ephemeris>(gps_eph_iter->second);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
// Save ephemeris to XML file
std::string eph_xml_filename = configuration_->property("GNSS-SDR.SUPL_gps_ephemeris_xml", eph_default_xml_filename);
if (supl_client_ephemeris_.save_ephemeris_map_xml(eph_xml_filename, supl_client_ephemeris_.gps_ephemeris_map) == true)
{
std::cout << "SUPL: XML ephemeris data file created" << std::endl;
}
else
{
std::cout << "SUPL: Failed to create XML ephemeris data file" << std::endl;
}
}
else
{
std::cout << "ERROR: SUPL client request for ephemeris data returned " << error << std::endl;
std::cout << "Please check your network connectivity and SUPL server configuration" << std::endl;
std::cout << "Trying to read AGNSS data from local XML file(s)..." << std::endl;
if (read_assistance_from_XML() == false)
{
std::cout << "ERROR: Could not read XML files: Disabling SUPL assistance." << std::endl;
}
}
// Request almanac, IONO and UTC Model data
supl_client_ephemeris_.request = 0;
std::cout << "SUPL: Try to read Almanac, Iono, Utc Model, Ref Time and Ref Location data from SUPL server..." << std::endl;
error = supl_client_ephemeris_.get_assistance(supl_mcc, supl_mns, supl_lac, supl_ci);
if (error == 0)
{
std::map<int, Gps_Almanac>::const_iterator gps_alm_iter;
for (gps_alm_iter = supl_client_ephemeris_.gps_almanac_map.cbegin();
gps_alm_iter != supl_client_ephemeris_.gps_almanac_map.cend();
gps_alm_iter++)
{
std::cout << "SUPL: Received almanac data for satellite " << Gnss_Satellite("GPS", gps_alm_iter->second.i_satellite_PRN) << std::endl;
std::shared_ptr<Gps_Almanac> tmp_obj = std::make_shared<Gps_Almanac>(gps_alm_iter->second);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
supl_client_ephemeris_.save_gps_almanac_xml("gps_almanac_map.xml", supl_client_ephemeris_.gps_almanac_map);
if (supl_client_ephemeris_.gps_iono.valid == true)
{
std::cout << "SUPL: Received GPS Ionosphere model parameters" << std::endl;
std::shared_ptr<Gps_Iono> tmp_obj = std::make_shared<Gps_Iono>(supl_client_ephemeris_.gps_iono);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
if (supl_client_ephemeris_.gps_utc.valid == true)
{
std::cout << "SUPL: Received GPS UTC model parameters" << std::endl;
std::shared_ptr<Gps_Utc_Model> tmp_obj = std::make_shared<Gps_Utc_Model>(supl_client_ephemeris_.gps_utc);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
}
// Save iono and UTC model data to xml file
std::string iono_xml_filename = configuration_->property("GNSS-SDR.SUPL_gps_iono_xml", iono_default_xml_filename);
if (supl_client_ephemeris_.save_iono_xml(iono_xml_filename, supl_client_ephemeris_.gps_iono) == true)
{
std::cout << "SUPL: Iono data file created" << std::endl;
}
else
{
std::cout << "SUPL: Failed to create Iono data file" << std::endl;
}
std::string utc_xml_filename = configuration_->property("GNSS-SDR.SUPL_gps_utc_model_xml", utc_default_xml_filename);
if (supl_client_ephemeris_.save_utc_xml(utc_xml_filename, supl_client_ephemeris_.gps_utc) == true)
{
std::cout << "SUPL: UTC model data file created" << std::endl;
}
else
{
std::cout << "SUPL: Failed to create UTC model data file" << std::endl;
}
}
else
{
std::cout << "ERROR: SUPL client for almanac data returned " << error << std::endl;
std::cout << "Please check your network connectivity and SUPL server configuration" << std::endl;
}
// Request acquisition assistance
supl_client_acquisition_.request = 2;
std::cout << "SUPL: Try to read acquisition assistance data from SUPL server..." << std::endl;
error = supl_client_acquisition_.get_assistance(supl_mcc, supl_mns, supl_lac, supl_ci);
if (error == 0)
{
std::map<int, Gps_Acq_Assist>::const_iterator gps_acq_iter;
for (gps_acq_iter = supl_client_acquisition_.gps_acq_map.cbegin();
gps_acq_iter != supl_client_acquisition_.gps_acq_map.cend();
gps_acq_iter++)
{
std::cout << "SUPL: Received acquisition assistance data for satellite " << Gnss_Satellite("GPS", gps_acq_iter->second.i_satellite_PRN) << std::endl;
global_gps_acq_assist_map.write(gps_acq_iter->second.i_satellite_PRN, gps_acq_iter->second);
}
if (supl_client_acquisition_.gps_ref_loc.valid == true)
{
std::cout << "SUPL: Received Ref Location data (Acquisition Assistance)" << std::endl;
agnss_ref_location_ = supl_client_acquisition_.gps_ref_loc;
std::shared_ptr<Agnss_Ref_Location> tmp_obj = std::make_shared<Agnss_Ref_Location>(agnss_ref_location_);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
supl_client_acquisition_.save_ref_location_xml("agnss_ref_location.xml", agnss_ref_location_);
}
if (supl_client_acquisition_.gps_time.valid == true)
{
std::cout << "SUPL: Received Ref Time data (Acquisition Assistance)" << std::endl;
agnss_ref_time_ = supl_client_acquisition_.gps_time;
std::shared_ptr<Agnss_Ref_Time> tmp_obj = std::make_shared<Agnss_Ref_Time>(agnss_ref_time_);
flowgraph_->send_telemetry_msg(pmt::make_any(tmp_obj));
supl_client_acquisition_.save_ref_time_xml("agnss_ref_time.xml", agnss_ref_time_);
}
}
else
{
std::cout << "ERROR: SUPL client for acquisition assistance returned " << error << std::endl;
std::cout << "Please check your network connectivity and SUPL server configuration" << std::endl;
std::cout << "Disabling SUPL acquisition assistance." << std::endl;
}
}
}
if ((enable_gps_supl_assistance == false) and (enable_agnss_xml == true))
{
// read assistance from file
if (read_assistance_from_XML())
{
std::cout << "GNSS assistance data loaded from local XML file(s)." << std::endl;
}
}
// If AGNSS is enabled, make use of it
if ((agnss_ref_location_.valid == true) and ((enable_gps_supl_assistance == true) or (enable_agnss_xml == true)))
{
// Get the list of visible satellites
arma::vec ref_LLH = arma::zeros(3, 1);
ref_LLH(0) = agnss_ref_location_.lat;
ref_LLH(1) = agnss_ref_location_.lon;
time_t ref_rx_utc_time = 0;
if (agnss_ref_time_.valid == true)
{
ref_rx_utc_time = agnss_ref_time_.d_tv_sec;
}
std::vector<std::pair<int, Gnss_Satellite>> visible_sats = get_visible_sats(ref_rx_utc_time, ref_LLH);
// Set the receiver in Standby mode
flowgraph_->apply_action(0, 10);
// Give priority to visible satellites in the search list
flowgraph_->priorize_satellites(visible_sats);
// Hot Start
flowgraph_->apply_action(0, 12);
}
}
void ControlThread::read_control_messages()
{
DLOG(INFO) << "Reading control messages from queue";
gr::message::sptr queue_message = control_queue_->delete_head();
if (queue_message != 0)
{
control_messages_ = control_message_factory_->GetControlMessages(queue_message);
}
else
{
control_messages_->clear();
}
}
// Apply the corresponding control actions
void ControlThread::process_control_messages()
{
for (unsigned int i = 0; i < control_messages_->size(); i++)
{
if (stop_) break;
if (control_messages_->at(i)->who == 200)
{
apply_action(control_messages_->at(i)->what);
}
else
{
if (control_messages_->at(i)->who == 300) // some TC commands require also actions from control_thread
{
apply_action(control_messages_->at(i)->what);
}
flowgraph_->apply_action(control_messages_->at(i)->who, control_messages_->at(i)->what);
}
processed_control_messages_++;
}
control_messages_->clear();
DLOG(INFO) << "Processed all control messages";
}
void ControlThread::apply_action(unsigned int what)
{
std::shared_ptr<PvtInterface> pvt_ptr;
std::vector<std::pair<int, Gnss_Satellite>> visible_satellites;
switch (what)
{
case 0:
LOG(INFO) << "Received action STOP";
stop_ = true;
applied_actions_++;
break;
case 1:
LOG(INFO) << "Received action RESTART";
stop_ = true;
restart_ = true;
applied_actions_++;
break;
case 11:
LOG(INFO) << "Receiver action COLDSTART";
// delete all ephemeris and almanac information from maps (also the PVT map queue)
pvt_ptr = flowgraph_->get_pvt();
pvt_ptr->clear_ephemeris();
// todo: reorder the satellite queues to the receiver default startup order.
// This is required to allow repeatability. Otherwise the satellite search order will depend on the last tracked satellites
break;
case 12:
LOG(INFO) << "Receiver action HOTSTART";
visible_satellites = get_visible_sats(cmd_interface_.get_utc_time(), cmd_interface_.get_LLH());
// reorder the satellite queue to acquire first those visible satellites
flowgraph_->priorize_satellites(visible_satellites);
// start again the satellite acquisitions (done in chained apply_action to flowgraph)
break;
case 13:
LOG(INFO) << "Receiver action WARMSTART";
// delete all ephemeris and almanac information from maps (also the PVT map queue)
pvt_ptr = flowgraph_->get_pvt();
pvt_ptr->clear_ephemeris();
// load the ephemeris and the almanac from XML files (receiver assistance)
read_assistance_from_XML();
// call here the function that computes the set of visible satellites and its elevation
// for the date and time specified by the warm start command and the assisted position
get_visible_sats(cmd_interface_.get_utc_time(), cmd_interface_.get_LLH());
// reorder the satellite queue to acquire first those visible satellites
flowgraph_->priorize_satellites(visible_satellites);
// start again the satellite acquisitions (done in chained apply_action to flowgraph)
break;
default:
LOG(INFO) << "Unrecognized action.";
break;
}
}
std::vector<std::pair<int, Gnss_Satellite>> ControlThread::get_visible_sats(time_t rx_utc_time, const arma::vec &LLH)
{
// 1. Compute rx ECEF position from LLH WGS84
arma::vec LLH_rad = arma::vec{degtorad(LLH(0)), degtorad(LLH(1)), LLH(2)};
arma::mat C_tmp = arma::zeros(3, 3);
arma::vec r_eb_e = arma::zeros(3, 1);
arma::vec v_eb_e = arma::zeros(3, 1);
Geo_to_ECEF(LLH_rad, arma::vec{0, 0, 0}, C_tmp, r_eb_e, v_eb_e, C_tmp);
// 2. Compute rx GPS time from UTC time
gtime_t utc_gtime;
utc_gtime.time = rx_utc_time;
utc_gtime.sec = 0;
gtime_t gps_gtime = utc2gpst(utc_gtime);
// 3. loop through all the available ephemeris or almanac and compute satellite positions and elevations
// store visible satellites in a vector of pairs <int,Gnss_Satellite> to associate an elevation to the each satellite
std::vector<std::pair<int, Gnss_Satellite>> available_satellites;
std::vector<unsigned int> visible_gps;
std::vector<unsigned int> visible_gal;
std::shared_ptr<PvtInterface> pvt_ptr = flowgraph_->get_pvt();
struct tm tstruct = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, nullptr};
char buf[80];
tstruct = *gmtime(&rx_utc_time);
strftime(buf, sizeof(buf), "%d/%m/%Y %H:%M:%S ", &tstruct);
std::string str_time = std::string(buf);
std::cout << "Get visible satellites at " << str_time
<< "UTC, assuming RX position " << LLH(0) << " [deg], " << LLH(1) << " [deg], " << LLH(2) << " [m]" << std::endl;
std::map<int, Gps_Ephemeris> gps_eph_map = pvt_ptr->get_gps_ephemeris();
for (std::map<int, Gps_Ephemeris>::iterator it = gps_eph_map.begin(); it != gps_eph_map.end(); ++it)
{
eph_t rtklib_eph = eph_to_rtklib(it->second);
double r_sat[3];
double clock_bias_s;
double sat_pos_variance_m2;
eph2pos(gps_gtime, &rtklib_eph, &r_sat[0], &clock_bias_s,
&sat_pos_variance_m2);
double Az, El, dist_m;
arma::vec r_sat_eb_e = arma::vec{r_sat[0], r_sat[1], r_sat[2]};
arma::vec dx = r_sat_eb_e - r_eb_e;
topocent(&Az, &El, &dist_m, r_eb_e, dx);
// push sat
if (El > 0)
{
std::cout << "Using GPS Ephemeris: Sat " << it->second.i_satellite_PRN << " Az: " << Az << " El: " << El << std::endl;
available_satellites.push_back(std::pair<int, Gnss_Satellite>(floor(El),
(Gnss_Satellite(std::string("GPS"), it->second.i_satellite_PRN))));
visible_gps.push_back(it->second.i_satellite_PRN);
}
}
std::map<int, Galileo_Ephemeris> gal_eph_map = pvt_ptr->get_galileo_ephemeris();
for (std::map<int, Galileo_Ephemeris>::iterator it = gal_eph_map.begin(); it != gal_eph_map.end(); ++it)
{
eph_t rtklib_eph = eph_to_rtklib(it->second);
double r_sat[3];
double clock_bias_s;
double sat_pos_variance_m2;
eph2pos(gps_gtime, &rtklib_eph, &r_sat[0], &clock_bias_s,
&sat_pos_variance_m2);
double Az, El, dist_m;
arma::vec r_sat_eb_e = arma::vec{r_sat[0], r_sat[1], r_sat[2]};
arma::vec dx = r_sat_eb_e - r_eb_e;
topocent(&Az, &El, &dist_m, r_eb_e, dx);
// push sat
if (El > 0)
{
std::cout << "Using Galileo Ephemeris: Sat " << it->second.i_satellite_PRN << " Az: " << Az << " El: " << El << std::endl;
available_satellites.push_back(std::pair<int, Gnss_Satellite>(floor(El),
(Gnss_Satellite(std::string("Galileo"), it->second.i_satellite_PRN))));
visible_gal.push_back(it->second.i_satellite_PRN);
}
}
std::map<int, Gps_Almanac> gps_alm_map = pvt_ptr->get_gps_almanac();
for (std::map<int, Gps_Almanac>::iterator it = gps_alm_map.begin(); it != gps_alm_map.end(); ++it)
{
alm_t rtklib_alm = alm_to_rtklib(it->second);
double r_sat[3];
double clock_bias_s;
gtime_t aux_gtime;
aux_gtime.time = fmod(utc2gpst(gps_gtime).time + 345600, 604800);
alm2pos(aux_gtime, &rtklib_alm, &r_sat[0], &clock_bias_s);
double Az, El, dist_m;
arma::vec r_sat_eb_e = arma::vec{r_sat[0], r_sat[1], r_sat[2]};
arma::vec dx = r_sat_eb_e - r_eb_e;
topocent(&Az, &El, &dist_m, r_eb_e, dx);
// push sat
std::vector<unsigned int>::iterator it2;
if (El > 0)
{
it2 = std::find(visible_gps.begin(), visible_gps.end(), it->second.i_satellite_PRN);
if (it2 == visible_gps.end())
{
std::cout << "Using GPS Almanac: Sat " << it->second.i_satellite_PRN << " Az: " << Az << " El: " << El << std::endl;
available_satellites.push_back(std::pair<int, Gnss_Satellite>(floor(El),
(Gnss_Satellite(std::string("GPS"), it->second.i_satellite_PRN))));
}
}
}
std::map<int, Galileo_Almanac> gal_alm_map = pvt_ptr->get_galileo_almanac();
for (std::map<int, Galileo_Almanac>::iterator it = gal_alm_map.begin(); it != gal_alm_map.end(); ++it)
{
alm_t rtklib_alm = alm_to_rtklib(it->second);
double r_sat[3];
double clock_bias_s;
gtime_t gal_gtime;
gal_gtime.time = fmod(utc2gpst(gps_gtime).time + 345600, 604800);
alm2pos(gal_gtime, &rtklib_alm, &r_sat[0], &clock_bias_s);
double Az, El, dist_m;
arma::vec r_sat_eb_e = arma::vec{r_sat[0], r_sat[1], r_sat[2]};
arma::vec dx = r_sat_eb_e - r_eb_e;
topocent(&Az, &El, &dist_m, r_eb_e, dx);
// push sat
std::vector<unsigned int>::iterator it2;
if (El > 0)
{
it2 = std::find(visible_gal.begin(), visible_gal.end(), it->second.i_satellite_PRN);
if (it2 == visible_gal.end())
{
std::cout << "Using Galileo Almanac: Sat " << it->second.i_satellite_PRN << " Az: " << Az << " El: " << El << std::endl;
available_satellites.push_back(std::pair<int, Gnss_Satellite>(floor(El),
(Gnss_Satellite(std::string("Galileo"), it->second.i_satellite_PRN))));
}
}
}
// sort the visible satellites in ascending order of elevation
std::sort(available_satellites.begin(), available_satellites.end(), [](const std::pair<int, Gnss_Satellite> &a, const std::pair<int, Gnss_Satellite> &b) { // use lambda. Cleaner and easier to read
return a.first < b.first;
});
// provide list starting from satellites with higher elevation
std::reverse(available_satellites.begin(), available_satellites.end());
return available_satellites;
}
void ControlThread::gps_acq_assist_data_collector()
{
// ############ 1.bis READ EPHEMERIS/UTC_MODE/IONO QUEUE ####################
Gps_Acq_Assist gps_acq;
Gps_Acq_Assist gps_acq_old;
while (stop_ == false)
{
global_gps_acq_assist_queue.wait_and_pop(gps_acq);
if (gps_acq.i_satellite_PRN == 0) break;
// DEBUG MESSAGE
std::cout << "Acquisition assistance record has arrived from SAT ID "
<< gps_acq.i_satellite_PRN
<< " with Doppler "
<< gps_acq.d_Doppler0
<< " [Hz] " << std::endl;
// insert new acq record to the global ephemeris map
if (global_gps_acq_assist_map.read(gps_acq.i_satellite_PRN, gps_acq_old))
{
std::cout << "Acquisition assistance record updated" << std::endl;
global_gps_acq_assist_map.write(gps_acq.i_satellite_PRN, gps_acq);
}
else
{
// insert new acq record
LOG(INFO) << "New acq assist record inserted";
global_gps_acq_assist_map.write(gps_acq.i_satellite_PRN, gps_acq);
}
}
}
void ControlThread::sysv_queue_listener()
{
typedef struct
{
long mtype; // required by SysV queue messaging
double stop_message;
} stop_msgbuf;
bool read_queue = true;
stop_msgbuf msg;
double received_message = 0.0;
int msgrcv_size = sizeof(msg.stop_message);
key_t key = 1102;
if ((msqid = msgget(key, 0644 | IPC_CREAT)) == -1)
{
perror("GNSS-SDR cannot create SysV message queues");
exit(1);
}
while (read_queue && !stop_)
{
if (msgrcv(msqid, &msg, msgrcv_size, 1, 0) != -1)
{
received_message = msg.stop_message;
if ((std::abs(received_message - (-200.0)) < 10 * std::numeric_limits<double>::epsilon()))
{
std::cout << "Quit order received, stopping GNSS-SDR !!" << std::endl;
std::unique_ptr<ControlMessageFactory> cmf(new ControlMessageFactory());
if (control_queue_ != gr::msg_queue::sptr())
{
control_queue_->handle(cmf->GetQueueMessage(200, 0));
}
read_queue = false;
}
}
}
}
void ControlThread::keyboard_listener()
{
bool read_keys = true;
char c = '0';
while (read_keys && !stop_)
{
std::cin.get(c);
if (c == 'q')
{
std::cout << "Quit keystroke order received, stopping GNSS-SDR !!" << std::endl;
std::unique_ptr<ControlMessageFactory> cmf(new ControlMessageFactory());
if (control_queue_ != gr::msg_queue::sptr())
{
control_queue_->handle(cmf->GetQueueMessage(200, 0));
}
read_keys = false;
}
usleep(500000);
}
}
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