qt5-legatus-legacy/Lts/Services/MeteoDataManagement/tcpwind.cpp

/**
  * Handle one wind sensor
  * Requests for wind sensor data in an given interval.
  * All data will be send by signal/slot connection in case of data change.
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by hjl, SLSE, 2016-09-22
  */

#include "tcpwind.h"
#include "settings.h"
#include "logger.h"

namespace MeteoDataManagement
{

TcpWind::TcpWind(QObject *parent)
  : TcpSocket("TcpWind", parent)
  , m_requestTimer(new QTimer(this))
  , m_requestTimeoutTimer(new QTimer(this))
  , m_direction(0)
  , m_speed(0)
  , m_dataChanged(false)
{
  // m_logger geerbt aus TcpSocket
  INFO_LOG(m_logger) << "CTOR  TcpWind... hat TcpSocket fuer connects initialisiert";

  connect(m_requestTimer, &QTimer::timeout, this, &TcpWind::onSensorDataRequest);
  connect(m_requestTimeoutTimer, &QTimer::timeout, this, &TcpWind::onRequestTimeout);

}
//-------------------------------------------------------------------

void TcpWind::start(const QString &converterIp, quint16 windPort)
{
  INFO_LOG(m_logger) << "startTcpWind()  ... call function TcpSocket::start()";

  TcpSocket::start(converterIp, windPort); // connect...
  m_requestTimer->start(Settings::getRequstIntervalWindSensor());
}
//-------------------------------------------------------------------

void TcpWind::init()
{
  // pure virtual function aus TcpSocket

  // WS-425 Einstellungen: NEMA-Extended, PollMode, 9600,8,N,1
  // Hier sind dann keine weiteren Einstellungen erforderlich.
  // Nach PowerOn ist der WS betriebsbereit.
}
//-------------------------------------------------------------------

void TcpWind::dataAvailable(const QByteArray &line)
{
  // pure virtual function aus TcpSocket

  // Nur lines mit Wetterdaten behandeln
  if (line.contains("PAMWV"))
  {
    m_requestTimeoutTimer->stop();

    bool windOk = extractDataFromLine(line);

    if (m_dataChanged)
    {
      m_dataChanged = false;
      emit sigWindDataChanged(m_direction, m_speed, windOk);
    }
  }
  else
  {
    DEBUG_LOG(m_logger) << "Other wind sensor data available  line: " << line ;
    // ggf. andere Meldungen behandeln
  }
}
//-------------------------------------------------------------------

void TcpWind::onSensorDataRequest()
{
  if (m_requestTimeoutTimer->isActive())
    return;

  INFO_LOG(m_logger) << "onSensorDataRequest()  ...";

  if (!sendCommand("$WIPAQ,*72\r\n"))
    return;

  m_requestTimeoutTimer->start(Settings::getRequstTimeoutWindSensor());
}
//-------------------------------------------------------------------

void TcpWind::onRequestTimeout()
{
  ERROR_LOG(m_logger) << "Timeout for wind sensor data request."
                      << " RS232-LAN Converter: " << m_hostName
                      << " Port: " << m_hostPort;

  emit sigWindDataChanged(0, 0, false);
  m_requestTimeoutTimer->stop();
}
//-------------------------------------------------------------------

bool TcpWind::extractDataFromLine(const QByteArray &line)
{
  bool bOk = true;
  DEBUG_LOG(m_logger) << "extractDataFromLine  line: " << line;

  QList<QByteArray> list = line.split(',');

  if (list.size() != 6)
  {
    WARNING_LOG(m_logger) << "Invalid number of data in line: " << line << " cnt: " << list.size();
    return false;
  }

  // NMEA-Extended line data format:
  // [0] $PAWMV  fixed    Remark: 'A' discribes the sensor-id
  // [1] float   direction in degree, or empty
  // [2] char    R = relativ, T = true
  // [3] float   speed, or empty
  // [4] char    M = m/s, K = Km/h, N = Knoten
  // [5] String  "<State> * <checksum>"
  //             State: A = Data valid, V = Data invalid
  //             *  fixed
  //             checksum 8bit XOR, excluding $ and *)

  if (list.at(5).contains('V'))
  {
    ERROR_LOG(m_logger) << "Invalid data from windsensor. "
                        << " RS232-LAN Converter: " << m_hostName
                        << " Port: " << m_hostPort
                        << " Line: " << line;
    return false;
  }

  float value;
  if (list.at(1).size() > 0)
  {
    value = list.at(1).toFloat(&bOk);
    if (bOk && !qFuzzyCompare(value, m_direction))
    {
      m_direction = value;
      m_dataChanged = true;
    }
  }

  if (list.at(3).size() > 0)
  {
    value = list.at(3).toFloat(&bOk);
    if (bOk && !qFuzzyCompare(value, m_speed))
    {
      m_speed = value;
      m_dataChanged = true;
    }
  }

  if (list.at(4).contains('K'))
  {
    // km/h -> m/s
    m_speed = m_speed * 0.2778f;
  }

  if (list.at(4).contains('N'))
  {
    // Kn -> m/s
    m_speed = m_speed * 0.5144f;
  }

  return bOk;
}
//-------------------------------------------------------------------


} // namespace MeteoDataManagement