private ParsingResult ParsingPsti50(String[] param, NmeaTypeIdentify.NmeaType t)
{
if (param.Length != 18)
{
return ParsingResult.None;
}
int total = Convert.ToInt32(param[2]);
int current = Convert.ToInt32(param[3]);
int totalSate = Convert.ToInt32(param[4]);
if (current == 1)
{
totalPsti50 = total;
lastPsti50 = current;
}
int MaxParam = 17;
for (int i = 5; i < MaxParam; i += 3)
{
String pi = param[i];
if (pi.Length <= 0)
{
break;
}
String pi2 = param[i + 2];
int id = Convert.ToInt32(pi);
int snr = (pi2.Length <= 0) ? 0 : Convert.ToInt32(pi2);
parsingStat.UpdateGlonassSnr(id, snr);
}
if (total == current)
{
totalGsv = -1;
lastGsv = -1;
return ParsingResult.UpdateSate;
}
return ParsingResult.None;
}
private ParsingResult ParsingGsv(String s, NmeaTypeIdentify.NmeaType t)
{
char[] delimiterChars = { ',', '*' };
String[] param = s.Split(delimiterChars);
if (param.Length != 9 && param.Length != 13 && param.Length != 17 && param.Length != 21)
{
return ParsingResult.None;
}
int total = Convert.ToInt32(param[1]);
int current = Convert.ToInt32(param[2]);
int totalSate = Convert.ToInt32(param[3]);
if(current==1)
{
totalGsv = total;
lastGsv = current;
}
int MaxParam;
switch (param.Length)
{
case 9:
MaxParam = 8;
break;
case 13:
MaxParam = 12;
break;
case 17:
MaxParam = 16;
break;
case 21:
MaxParam = 20;
break;
default:
MaxParam = 0;
break;
}
for (int i = 4; i < MaxParam; i += 4)
{
String pi = param[i];
if (pi.Length <= 0)
{
break;
}
String pi3 = param[i + 3];
int id = Convert.ToInt32(pi);
int snr = (pi3.Length <= 0) ? 0 : Convert.ToInt32(pi3);
switch (t)
{
case NmeaTypeIdentify.NmeaType.GPGSV:
parsingStat.UpdateGNSnr(id, snr);
break;
case NmeaTypeIdentify.NmeaType.GLGSV:
parsingStat.UpdateGlonassSnr(id, snr);
break;
case NmeaTypeIdentify.NmeaType.BDGSV:
parsingStat.UpdateBeidouSnr(id, snr);
break;
case NmeaTypeIdentify.NmeaType.GNGSV:
parsingStat.UpdateGNSnr(id, snr);
break;
}
}
if(total==current)
{
totalGsv = -1;
lastGsv = -1;
return ParsingResult.UpdateSate;
}
return ParsingResult.None;
}
private ParsingResult ParsingPsti(String s, NmeaTypeIdentify.NmeaType t)
{
char[] delimiterChars = { ',', '*' };
String[] param = s.Split(delimiterChars);
if (param[1] == "050")
{
return ParsingPsti50(param, t);
}
return ParsingResult.None;
}
private ParsingResult ParsingGsa(String s, NmeaTypeIdentify.NmeaType t)
{
char[] delimiterChars = { ',', '*' };
String[] param = s.Split(delimiterChars);
if (param.Length < 18)
{
return ParsingResult.None;
}
int posFix = Convert.ToInt32(param[2]);
//parsingStat.Clear();
for (int i = 3; i < 15; i++)
{
String pi = param[i];
if(pi.Length <= 0)
{
break;
}
int prn = Convert.ToInt32(pi);
switch (t)
{
case NmeaTypeIdentify.NmeaType.GPGSA:
parsingStat.AddInUseGpsPrn(prn);
break;
case NmeaTypeIdentify.NmeaType.GLGSA:
parsingStat.AddInUseGlonassPrn(prn);
break;
case NmeaTypeIdentify.NmeaType.BDGSA:
parsingStat.AddInUseBeidouPrn(prn);
break;
case NmeaTypeIdentify.NmeaType.GNGSA:
parsingStat.AddInUseGNPrn(prn);
break;
}
}
if(posFix != parsingStat.positionFixResult)
{
parsingStat.positionFixResult = posFix;
return ParsingResult.UpdateFixPosition;
}
return ParsingResult.None;
}
