void port_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
#region LER SIRF BINARY
//byte[] bData = new byte[1];
//port.Read(bData, 0, 1);
//binary = binary + BitConverter.ToString(bData);
//if (binary.EndsWith("B0B3"))
//{
// //remove start sequence
// binary = binary.Substring(4);
// //pega o tamanho do payload
// string payloadLength = binary.Substring(0, 4);
// int length = Convert.ToInt32(payloadLength, 16) * 2;
// binary = binary.Substring(4);
// //pegar o payload
// payloadMessage = binary.Substring(0, length);
// binary = binary.Substring(length);
// //pega o checksum
// string checksum = binary.Substring(0, 4);
// if (lstAvisos.InvokeRequired)
// {
// lstAvisos.Invoke(new Action(() => { lstAvisos.Items.Add(payloadMessage); }));
// lstAvisos.Invoke(new Action(() => { lstAvisos.SelectedIndex = lstAvisos.Items.Count - 1; }));
// }
// binary = "";
// //é uma measure navigation data out - message id 2
// if (payloadMessage.StartsWith("02"))
// {
// payloadMessage = payloadMessage.Substring(2);
// string xPosition = payloadMessage.Substring(0, 4);
// payloadMessage = payloadMessage.Substring(4);
// string yPosition = payloadMessage.Substring(0, 4);
// }
//}
#endregion
#region LER NMEA
byte[] bData = new byte[1];
try
{
port.Read(bData, 0, 1);
nmea = nmea + System.Text.Encoding.UTF8.GetString(bData, 0, 1);
if (System.Text.Encoding.UTF8.GetString(bData, 0, 1).Equals("\n") && nmea.Length > 1)
{
if (txtLat.InvokeRequired)
{
if (nmea.Contains("$GPGGA"))
{
GeoFramework.Gps.Nmea.GpggaSentence gpgga = new GeoFramework.Gps.Nmea.GpggaSentence(nmea);
GeoFramework.Position position = gpgga.Position;
base.lat = Math.Round(position.Latitude.DecimalDegrees, 6).ToString();
base.txtSatelites = gpgga.FixedSatelliteCount.ToString();
base.lon = Math.Round(position.Longitude.DecimalDegrees, 6).ToString();
accuracy = Convert.ToDouble(gpgga.HorizontalDilutionOfPrecision.EstimatedPrecision.ToMeters().ToString());
txtLat.Invoke(new Action(() => { txtLat.Text = base.lat; }));
txtLon.Invoke(new Action(() => { txtLon.Text = base.lon; }));
txtSatelites.Invoke(new Action(() => { txtSatelites.Text = "" + base.txtSatelites; }));
txtAcuracia.Invoke(new Action(() => { txtAcuracia.Text = "" + accuracy; }));
if (Math.Round(accuracy, 2) < 20)
{
this.BeginInvoke(new MethodInvoker(delegate()
{
if (!menuItemSalvar.Enabled)
{
menuItemSalvar.Enabled = true;
menuItemSalvar.Text = "Salvar";
MessageBeep();
}
}
));
}
else
{
this.BeginInvoke(new MethodInvoker(delegate()
{
menuItemSalvar.Enabled = false;
menuItemSalvar.Text = "Salvar (Dados incompletos)";
}
));
}
}
}
nmea = "";
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
#endregion
//if (port.IsOpen)
//{
// System.IO.Ports.SerialPort sp = (System.IO.Ports.SerialPort)sender;
// string s = sp.ReadExisting();
// if (lstAvisos.InvokeRequired)
// {
// lstAvisos.Invoke(new Action(() => { lstAvisos.Items.Add(s); }));
// lstAvisos.Invoke(new Action(() => { lstAvisos.SelectedIndex = lstAvisos.Items.Count - 1; }));
// }
//}
}
private void timerCoordenada_Tick(object sender, EventArgs e)
{
System.Windows.Forms.Application.DoEvents();
System.Net.Sockets.NetworkStream stream =
Usuario.btClient.GetStream();
//primeiro pega a data e hora com GPZDA
while (!displayString.Contains("$GPRMC"))
{
byte[] data = new byte[1];
int numOfBytesRead = stream.Read(data, 0, data.Length);
displayString = displayString + Encoding.ASCII.GetString(data, 0, numOfBytesRead);
}
displayString = "$GPRMC";
while (!displayString.Contains("\r"))
{
byte[] data = new byte[1];
int numOfBytesRead = stream.Read(data, 0, data.Length);
displayString = displayString + Encoding.ASCII.GetString(data, 0, numOfBytesRead);
}
gprmc = displayString;
try
{
GeoFramework.Gps.Nmea.GprmcSentence gprmcSetence =
new GeoFramework.Gps.Nmea.GprmcSentence(gprmc);
dataHora = gprmcSetence.UtcDateTime;
}
catch (Exception ex)
{
Library.log(ex.Message, "gprmc sentença falhou", this.Name);
}
//GPGGA
displayString = "";
while (!displayString.Contains("$GPGGA"))
{
byte[] data = new byte[1];
int numOfBytesRead = stream.Read(data, 0, data.Length);
displayString = displayString + Encoding.ASCII.GetString(data, 0, numOfBytesRead);
}
displayString = "$GPGGA";
while (!displayString.Contains("\r"))
{
byte[] data = new byte[1];
int numOfBytesRead = stream.Read(data, 0, data.Length);
displayString = displayString + Encoding.ASCII.GetString(data, 0, numOfBytesRead);
}
gpgga = displayString;
try
{
GeoFramework.Gps.Nmea.GpggaSentence gpggaSetence =
new GeoFramework.Gps.Nmea.GpggaSentence(gpgga);
accuracy = gpggaSetence.HorizontalDilutionOfPrecision.Value;
lat = Math.Round(gpggaSetence.Position.Latitude.DecimalDegrees, 10).ToString();
lon = Math.Round(gpggaSetence.Position.Longitude.DecimalDegrees, 10).ToString();
LatLon latlon = new LatLon();
latlon.Lat = lat;
latlon.Lon = lon;
filaLatLon.Enqueue(latlon);
if (filaLatLon.Count == 4)
{
if ((filaLatLon.All(l => l.Lat == latlon.Lat)) &&
(filaLatLon.All(l => l.Lon == latlon.Lon)))
{
salvar = true;
}
else
{
salvar = false;
}
filaLatLon.Dequeue();
}
//quantSatelites = nmea[7];
quantSatelites = gpggaSetence.FixedSatelliteCount.ToString();
if (Int32.Parse(quantSatelites) < 4)
{
txtSatelites = quantSatelites + " (Ruim)";
}
else
{
txtSatelites = quantSatelites + " (Bom)";
}
displayString = string.Empty;
atualizaInfoGPS();
}
catch (Exception ex)
{
Library.log(ex.Message, "gpgga sentença falhou", this.Name);
}
}
