/// <summary>
/// Read PLC via SerialPort
/// </summary>
/// <param name="PlcPort">Serial Port address</param>
/// <returns></returns>
public static string ReadPLC(System.IO.Ports.SerialPort PlcPort)
{
string FCS_rxd;
string FCS = "";
string RXD = "";
string data = "";
Stopwatch stopwatch = new Stopwatch();
try
{
RXD = "";
data = "";
PlcPort.ReadTimeout = 1000;
RXD = PlcPort.ReadTo("\r");
}
catch (Exception)
{
return(null);
}
FCS_rxd = RXD.Substring(RXD.Length - 3, 2);
if (RXD.Substring(0, 1) == "@" && RXD.Length > 3) //response has data
{
RXD = RXD.Substring(0, RXD.Length - 3);
}
/*else if (RXD.Substring(0, 1) == "@" && RXD.Length == 11)//reponse has no data but error
* {
* MessageBox.Show("PLC comm error");
* return data;
* }*/
else if (RXD == "")
{
return(null);
}
FCS = GetFCS(RXD);
if (FCS == FCS_rxd)
{
data = RXD.Substring(23, RXD.Length - 23);
return(data);
}
else
{
return(null);
}
}
void ComPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
if (sender.GetType() != typeof(System.IO.Ports.SerialPort))
{
return;
}
System.IO.Ports.SerialPort comPort = (System.IO.Ports.SerialPort)sender;
try
{
string infoMessage1 = comPort.ReadTo("=>");
infoMessage1 = infoMessage1.Trim().Replace("\0", "").Replace("\n\r", "\r\n");
//实现委托
MyInvoke Invoke1 = new MyInvoke(UpdateForm);
this.BeginInvoke(Invoke1, infoMessage1);
comPort.DiscardInBuffer();
comPort.DiscardOutBuffer();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
// TODO постараться вынести инициализацию в метод Read
private InitializationData ReadInitialization(SerialPort readport)
{
while (true)
{
try
{
readport.ReadTo("\xAA\x55");
// Считывание данных для создания пакета
// Здесь важен строгий порядок считывания байтов, точно как в пакете.
byte recipient = (byte)readport.ReadByte();
byte sender = (byte)readport.ReadByte();
ushort dataLenght = BitConverter.ToUInt16(
new byte[] { (byte)readport.ReadByte(), (byte)readport.ReadByte() }, 0);
byte option1 = (byte)readport.ReadByte();
byte option2 = (byte)readport.ReadByte();
ushort crc = BitConverter.ToUInt16(
new byte[] { (byte)readport.ReadByte(), (byte)readport.ReadByte() }, 0);
// Счетчик количества итерация цикла while
int count = 0;
while (readport.BytesToRead < dataLenght)
{
count++;
Thread.Sleep(_sleepTime);
if (count > dataLenght)
{
break;
}
}
byte[] data = new byte[dataLenght];
readport.Read(data, 0, dataLenght);
var packet = new Packet.Packet(new Header(recipient, sender, option1, option2), data);
// Проверка crc и id клиента, id отправителя и типа пакета
if (packet.Header.Crc == crc && packet.Header.Recipient == ClietnId && packet.Header.Sender == 0 && packet.Data.Type == DataType.Initialization)
{
SendAcknowledge(packet);
var initialization = StructConvertor.FromBytes<InitializationData>(packet.Data.Content);
return initialization;
}
}
catch (InvalidOperationException)
{
IsPortAvailable(readport);
Thread.Sleep(3000);
}
catch (TimeoutException exception)
{
// TODO ограничить количество отправок запроса
SendInitializationRequest();
}
catch (Exception exception)
{
LogHelper.GetLogger<CommunicationUnit>().Error("Ошибка при чтение с порта", exception);
}
}
}
public string PCempfangen()
{
input = comPort.ReadTo("\r");
DecodeDaten(input);
return(input);
}
private void worker_DoWork(object sender, DoWorkEventArgs e)
{
// run all background tasks here
//autoSerialPort = FindPort();
IProgress <string> progress = null;
var ports = System.IO.Ports.SerialPort.GetPortNames().OrderBy(s => s);
if (ports.Count() <= 0)
{
MessageBox.Show(
"Error: No Serial Ports avaliable. Make sure the gps reciever is plugged in and installed. Contact your system administrator for help. \n"
, "Error 1: No Serial Ports Found",
MessageBoxButton.OK,
MessageBoxImage.Error);
_continue = false;
autoSerialPort = null;
return;
}
Application.Current.Dispatcher.Invoke((Action) delegate
{
prog = new autoscanProgress();
prog.Show();
});
int i = 0;
int portNum = 0;
int total = ports.Count() * 3;
prog.scanPercentLabel.Dispatcher.BeginInvoke((Action)(() => prog.scanPercentLabel.Content = "Beginning Scan..."));
prog.autoscanProgressBar.Dispatcher.BeginInvoke((Action)(() => prog.autoscanProgressBar.Value = 2));
foreach (var portName in ports)
{
portNum++;
using (var port = new System.IO.Ports.SerialPort(portName))
{
var defaultRate = port.BaudRate;
List <int> baudRatesToTest = new List <int>(new[] { 9600, 4800, 19200 }); //Ordered by likelihood // removed: 115200, 57600, 38400, 2400
//Move default rate to first spot
if (baudRatesToTest.Contains(defaultRate))
{
baudRatesToTest.Remove(defaultRate);
}
baudRatesToTest.Insert(0, defaultRate);
foreach (var baud in baudRatesToTest)
{
i++;
double test = (double)(i) / total;
int percent = (int)(test * 100);
Trace.WriteLine("Percent complete: " + percent + "%");
Application.Current.Dispatcher.Invoke((Action) delegate
{
prog.autoscanProgressBar.Value = percent;
prog.scanPercentLabel.Content = "Scanning Port " + portNum + " at Baud " + baud;
});
if (progress != null)
{
progress.Report(string.Format("Trying {0} @ {1}baud", portName, port.BaudRate));
worker.ReportProgress(percent);
}
port.BaudRate = baud;
port.ReadTimeout = 2500; //this might not be long enough
bool success = false;
try
{
port.Open();
if (!port.IsOpen)
{
continue; //couldn't open port
}
try
{
port.ReadTo("$GP");
success = true;
Trace.WriteLine("GPS Found at: " + port.PortName + " baud " + port.BaudRate);
}
catch (TimeoutException)
{
continue;
}
}
catch
{
//Error reading
}
finally
{
port.Close();
//prog.Close();
}
if (success)
{
Application.Current.Dispatcher.Invoke((Action) delegate
{
prog.Close();
});
autoSerialPort = new System.IO.Ports.SerialPort(portName, baud);
return;
}
}
}
}
//serialPort = new System.IO.Ports.SerialPort("COM6", 9600);
//return serialPort;
MessageBox.Show(
"Error: Could not AutoDetect a GPS device. Make sure the gps reciever is plugged in and installed. If you believe your device is properly installed, it may not be on a scanned baud rate (9600, 4800, 19200). " +
"If this is the case, please go to settings and manually enter the information for your GPS reciever. \n" +
"Contact your system administrator for help. \n"
, "Error 1: No Serial Ports Found",
MessageBoxButton.OK,
MessageBoxImage.Error);
autoSerialPort = null;
Application.Current.Dispatcher.Invoke((Action) delegate
{
prog.Close();
});
return;
}
private static System.IO.Ports.SerialPort FindPort(IProgress <string> progress = null)
{
var ports = System.IO.Ports.SerialPort.GetPortNames().OrderBy(s => s);
if (ports.Count() <= 0)
{
MessageBox.Show(
"Error: No Serial Ports avaliable. Make sure the gps reciever is plugged in and installed. Contact your system administrator for help. \n"
, "Error 1: No Serial Ports Found",
MessageBoxButton.OK,
MessageBoxImage.Error);
_continue = false;
return(null);
}
prog = new autoscanProgress();
prog.Show();
int i = 0;
int total = ports.Count() * 4;
prog.scanPercentLabel.Dispatcher.BeginInvoke((Action)(() => prog.scanPercentLabel.Content = "Beginning Scan..."));
prog.autoscanProgressBar.Dispatcher.BeginInvoke((Action)(() => prog.autoscanProgressBar.Value = 2));
foreach (var portName in ports)
{
i++;
int j = 0;
using (var port = new System.IO.Ports.SerialPort(portName))
{
j++;
var defaultRate = port.BaudRate;
List <int> baudRatesToTest = new List <int>(new[] { 9600, 4800, 19200 }); //Ordered by likelihood // removed: 115200, 57600, 38400, 2400
//Move default rate to first spot
if (baudRatesToTest.Contains(defaultRate))
{
baudRatesToTest.Remove(defaultRate);
}
baudRatesToTest.Insert(0, defaultRate);
foreach (var baud in baudRatesToTest)
{
//prog.autoscanProgressBar.Dispatcher.BeginInvoke((Action)(() => prog.autoscanProgressBar.Value = (double)(((i + j) / total) * 100)));
prog.SetProgress((int)(double)(((i + j) / total) * 100));
prog.scanPercentLabel.Dispatcher.BeginInvoke((Action)(() => prog.scanPercentLabel.Content = "Scanning Port " + i + " at Baud " + baud));
if (progress != null)
{
progress.Report(string.Format("Trying {0} @ {1}baud", portName, port.BaudRate));
}
port.BaudRate = baud;
port.ReadTimeout = 2000; //this might not be long enough
bool success = false;
try
{
port.Open();
if (!port.IsOpen)
{
continue; //couldn't open port
}
try
{
port.ReadTo("$GP");
success = true;
}
catch (TimeoutException)
{
continue;
}
}
catch
{
//Error reading
}
finally
{
port.Close();
//prog.Close();
}
if (success)
{
prog.Close();
return(new System.IO.Ports.SerialPort(portName, baud));
}
}
}
}
//serialPort = new System.IO.Ports.SerialPort("COM6", 9600);
//return serialPort;
MessageBox.Show(
"Error: Could not AutoDetect a GPS device. Make sure the gps reciever is plugged in and installed. If you believe your device is properly installed, it may not be on a scanned baud rate (9600, 4800, 19200). " +
"If this is the case, please go to settings and manually enter the information for your GPS reciever. \n" +
"Contact your system administrator for help. \n"
, "Error 1: No Serial Ports Found",
MessageBoxButton.OK,
MessageBoxImage.Error);
return(null);
}
/// <summary>
/// 一直读取到输入缓冲区中的指定 value 的字符串。
/// </summary>
/// <param name="value">一直读取到输入缓冲区中的指定 value 的字符串</param>
/// <returns>输入缓冲区中直到指定 value 的内容。</returns>
public string ReadTo(string value)
{
return(COM.ReadTo(value));
}
public static String[] Read(SerialPort port)
{
long Inlatitude;
long Inlongitude;
string strLatitude = "";
string strLongitude = "";
double latitude;
double longitude;
int Heart_Rate;
bool flag_badData = false;
string Date_Time;
string[] words = {""};
string data = "";
do
{
flag_badData = false;
data = port.ReadTo("]");
words = data.Split(',');
if (words.Length != 4 || words[0].Length < 8 || words[1].Length < 10 || words[2].Length > 3)
{
flag_badData = true;
}
else
{
strLatitude = words[0].Remove(0, words[0].Length - 8);
strLongitude = words[1].Remove(0, words[1].Length - 10);
if (!IsAllDigits(strLatitude) || !IsAllDigits(strLongitude) || !IsAllDigits(words[2]))
{
flag_badData = true;
}
}
} while ( flag_badData || Int64.Parse(strLatitude) > 90000000 || Int64.Parse(strLatitude) < -90000000 || Int64.Parse(strLongitude) < -180000000 || Int64.Parse(strLongitude) > 180000000);
// lat = 90 long = 180
if (words[0] != null && words[1] != null)
{
try
{
Inlatitude = Int64.Parse(strLatitude);
latitude = (Inlatitude / 1000000.0);
Inlongitude = Int64.Parse(strLongitude);
longitude = (Inlongitude / 1000000.0);
words[0] = ("" + latitude);
words[1] = ("" + longitude);
//Location_ShowAll_Tab.Text = ("Lat:" + latitude + " Lon:" + longitude);
}
catch (FormatException)
{
// Location_ShowAll_Tab.Text = ("Format Issue!!!!");
latitude = 38.556868;
words[0] = "38.556868";
longitude = -121.358592;
words[1] = "-121.358592";
Read(port);
}
if (words[2] == null)
{
Heart_Rate = 0; //set default heart rate
words[2] = ("N/A");
// Heart_Rate_ShowAll_Tab.Text = ("Set to default");
}
else
{
try
{
Heart_Rate = Convert.ToInt32(words[2]); // Convert String into int
words[2] = ("" + Heart_Rate);
}
catch (FormatException)
{
words[2] = ("Format Error");
}
}
if (words[3] == null)
{
words[3] = ("Not available");
}
else
{
try
{
Date_Time = words[3]; // Keeps string as a string
words[3] = ("" + Date_Time);
}
catch (FormatException)
{
words[3] = ("Format Error");
}
}
}
else
{
//set default lat/ long - csus
latitude = 38.556868;
words[0] = "38.556868";
longitude = -121.358592;
words[1] = "-121.358592";
Read(port);
}
return words;
}
