问题描述
我有一台名为 Picarro G2401 的仪器，我需要从中查看数据。为了查看数据，仪器有自己的命令，即 (_Meas_GetConc)。当我在腻子中执行并输入命令时，它会显示数据。见下图。
我不知道把这个命令放在哪里才能让它工作。
在下面找到一张图片，它说它已连接但没有给出数据。
MainForm.cs
public partial class MainForm : Form
{
public MainForm()
{
InitializeComponent();
}
private PicarroG2401 sensor = new PicarroG2401(new IPAddress(new byte[] {10,71,3,4}));
private void MainForm_Load(object sender,EventArgs e)
{
this.sensor.Connected += Sensor_Connected;
this.sensor.disconnected += Sensor_disconnected;
this.sensor.DataReceived += Sensor_DataReceived;
this.sensor.Startup();
}
private void Sensor_DataReceived(object sender,DataReading reading)
{
this.data.AppendText(reading.ToString() + Environment.NewLine);
}
private void Sensor_disconnected(object sender,Tcpsensor sensor)
{
this.data.AppendText("disconnected" + Environment.NewLine);
}
private void Sensor_Connected(object sender,Tcpsensor sensor)
{
this.data.AppendText("Connected" + Environment.NewLine);
}
private void MainForm_FormClosing(object sender,FormClosingEventArgs e)
{
this.sensor.Shutdown();
}
}
PicarroG2401 - 类
namespace SensorDriverLibrary.Instruments
{
[Serializable]
public class PicarroG2401 : Tcpsensor
{
public PicarroG2401(IPAddress ip) : base(ip,51020)
{
}
public override SensorTypes GetSensorType()
{
return SensorTypes.PicarroG2401;
}
protected override DataReading processData()
{
base.processData();
if (this.tcpClient != null && this.tcpClient.Connected && this.tcpClient.Available > 0)
{
StreamReader reader = new StreamReader(this.tcpClient.GetStream());
string line = reader.ReadLine();
PicarroG2401_DataReading reading = new PicarroG2401_DataReading(line);
this.lastRead = DateTime.Now;
this.OnDataReceived(reading);
return reading;
}
return null;
}
}
}
PicarroG2401_DataReading
namespace SensorDriverLibrary.Instruments
{
[Serializable]
public class PicarroG2401_DataReading : DataReading
{
public PicarroG2401_DataReading() : base()
{ }
public PicarroG2401_DataReading(string data) : base()
{
//409.541;1.940;0.123;1.301
//012345678901234567890123456789
//0 1 2
//CO2 CH4 CO H2O
data = data.Substring(29);
string[] elements = data.Replace("\n\r","").Split(';');
this.CO2 = float.Parse(elements[0]);
this.CH4 = float.Parse(elements[1]);
this.CO = float.Parse(elements[2]);
this.H2O = float.Parse(elements[3]);
}
public override void ReadFromFile(FileStream file)
{
byte[] bytes = new byte[8];
file.Read(bytes,8);
this.Timestamp = new DateTime(BitConverter.ToInt64(bytes,0));
file.Read(bytes,4);
this.co2 = BitConverter.ToSingle(bytes,0);
file.Read(bytes,4);
this.ch4 = BitConverter.ToSingle(bytes,4);
this.co = BitConverter.ToSingle(bytes,4);
this.h2o = BitConverter.ToSingle(bytes,0);
}
public override void WritetoFile(FileStream file)
{
byte[] bytes = BitConverter.GetBytes(this.Timestamp.Ticks);
file.Write(bytes,bytes.Length);
bytes = BitConverter.GetBytes(this.co2);
file.Write(bytes,bytes.Length);
bytes = BitConverter.GetBytes(this.ch4);
file.Write(bytes,bytes.Length);
bytes = BitConverter.GetBytes(this.co);
file.Write(bytes,bytes.Length);
bytes = BitConverter.GetBytes(this.h2o);
}
public override string ToString()
{
return base.ToString() +
this.CO2.ToString("0.000") + " " +
this.CH4.ToString("0.000") + " " +
this.CO.ToString("0.000") + " " +
this.H2O.ToString("0.000");
}
public override string GetHTMLTable()
{
string table = "<table>";
table += "<tr><td>CO2</td><td>" + this.CO2.ToString("0.000") + " ppm" + "</td></tr>";
table += "<tr><td>CH4</td><td>" + this.CH4.ToString("0.000") + " ppm" + "</td></tr>";
table += "<tr><td>CO</td><td>" + this.CO.ToString("0.000") + " ppm" + "</td></tr>";
table += "<tr><td>H2O</td><td>" + this.H2O.ToString("0.000") + " %" + "</td></tr>";
table += "</table>";
return table;
}
private float co2 = 0; //ppm
public float CO2
{
get
{
return this.co2;
}
set
{
this.co2 = value;
}
}
private float ch4 = 0; //ppm
public float CH4
{
get
{
return this.ch4;
}
set
{
this.ch4 = value;
}
}
private float co = 0; //ppm
public float CO
{
get
{
return this.co;
}
set
{
this.co = value;
}
}
private float h2o = 0; // %
public float H2O
{
get
{
return this.h2o;
}
set
{
this.h2o = value;
}
}
}
解决方法
免责声明：我没有足够的信息来验证这个答案，但是这是吃不消oomment
在PicarroG2401.processData（），则需要尝试读取结果之前，命令字符串发送到传感器。像这样：
StreamWriter writer = new StreamWriter(this.tcpClient.GetStream());
StreamReader reader = new StreamReader(this.tcpClient.GetStream());
writer.WriteLine("_Meas_GetConc");
writer.Flush();
string line = reader.ReadLine();
我想你将要删除的条件this.tcpClient.Available > 0，作为直到它接收到该命令的传感器将不会发送的任何数据。
现在，这是假定该线路终止的StreamWriter和StreamReader的选择匹配终止传感器所需/发送的线路。如果没有，您可能还有其他工作要做。
,我设法做到了，下面的代码是问题-
protected override DataReading processData()
{
base.processData();
if (this.tcpClient != null && this.tcpClient.Connected)
{
StreamWriter writer = new StreamWriter(tcpClient.GetStream());
writer.WriteLine("_Meas_GetConc\n\r");
writer.Flush();
StreamReader reader = new StreamReader(tcpClient.GetStream());
string line = reader.ReadLine();
PicarroG2401_DataReading reading = new PicarroG2401_DataReading(line);
lastRead = DateTime.Now;
OnDataReceived(reading);
return reading;
}
return null;
}