Exemple #1
0
        /// <summary>
        /// Builds a measurement
        /// </summary>
        /// <param name="PRT_m">The PRT being used in the measurement</param>
        /// <param name="MUX_m">The MUX type that the PRT is pluged into</param>
        /// <param name="bridge_m">The type of resistance bridge the PRT is plugged into</param>
        /// <param name="bridge_m">The channel for the measurement</param>
        /// <param name="bridge_m">A delegate to be called when temperature data becomes available</param>
        public TemperatureMeasurement(ref PRT PRT_m, ref MUX MUX_m, ref ResistanceBridge bridge_m, short channel, long measurement_index)
        {
            prt                     = PRT_m;
            mux                     = MUX_m;
            bridge                  = bridge_m;
            lab_location            = "";
            filename                = "";
            channel_for_measurement = channel;
            result                  = 0.0;
            measurement_index_      = measurement_index;
            //thread_count = measurement_index+1;
            x_data = new StringBuilder("");
            y_data = new StringBuilder("");
            date   = DateTime.Now;
            assigned_thread_priority = 1;  //make the fresh measurement added have the highest execution priority.

            //everytime we add a new measurement change the size of the thread array
            //Array.Resize(ref threads_running,(int) measurement_index);
            Array.Resize(ref current_measurements, (int)measurement_index + 1);
            current_measurements[measurement_index] = this;

            //Array.Resize(ref threadexecution, (int)measurement_index);

            //threadexecution[measurement_index] = true;
        }
Exemple #2
0
        public static void MeasureAll()
        {
            string init_string = String.Concat(TemperatureMeasurement.MeasurementList[0].bridge.GPIBSICL, TemperatureMeasurement.MeasurementList[0].bridge.GPIBAddr);

            ResistanceBridge.createInteropObject();
            TemperatureMeasurement.MeasurementList[0].bridge.InitIO(init_string);
            //TemperatureMeasurement measuring = (TemperatureMeasurement)stateInfo;

            while (TemperatureMeasurement.MeasurementList.Length != 30)
            {
                TemperatureMeasurement.thread_running.Join(1000);
            }
            //The file paths
            string path;
            string path2;

            //create a file stream writer to put the data into
            System.IO.StreamWriter writer = null;

            //record the month we are in
            int month_ = System.DateTime.Now.Month;

            thread_running.Join(3000);
            while (true)
            {
                int i = 0;
                foreach (TemperatureMeasurement current_m in TemperatureMeasurement.MeasurementList)
                {
                    TemperatureMeasurement.thread_running.Join(500);
                    bool appenditure = false;

                    path  = TemperatureMeasurement.MeasurementList[i].directory + TemperatureMeasurement.MeasurementList[i].Filename + ".txt";
                    path2 = @"G:\Shared drives\MSL - Length\Length\Temperature Monitoring Data\" + TemperatureMeasurement.MeasurementList[i].Filename + "_" + System.DateTime.Now.Ticks.ToString() + ".txt";


                    try
                    {
                        //if the file exists append to it otherwise create a new file
                        if (System.IO.File.Exists(path))
                        {
                            appenditure = true;
                            writer      = System.IO.File.AppendText(path);
                        }
                        else
                        {
                            writer = System.IO.File.CreateText(path);
                        }
                    }
                    catch (System.IO.IOException e)
                    {
                        //Caused because a file is already open for editing, solve by creating a new file and appending the date onto the filename
                        writer = System.IO.File.CreateText(path2);
                    }
                    using (writer)
                    {
                        //if appending we don't need this again
                        if (!appenditure)
                        {
                            writer.WriteLine("Automatically Generated File!\n");
                        }



                        //set the current (incoming) measurements priority to be the lowest (biggest number)
                        //measuring.AssignedThreadPriority = thread_count;


                        //make the current thread wait until its priority reaches 1
                        //lock (lockthis) while (measuring.AssignedThreadPriority != 1) Monitor.Wait(lockthis);

                        //---------------------------------------------------------------------START OF CRITICAL SECTION-------------------------------------------------------------
                        //lock(lockthis)
                        //{


                        //make sure the channel is correct (it may have been changed by another thread)
                        TemperatureMeasurement.MeasurementList[i].setMUXChannel();

                        //sleep the thread for the specified dead time
                        //Thread.Sleep((int)(measuring.Inverval * 1000));

                        //take the measurement
                        double measurement_result = TemperatureMeasurement.MeasurementList[i].Measure();
                        TemperatureMeasurement.MeasurementList[i].Result = measurement_result;
                        TemperatureMeasurement.MeasurementList[i].y_data.Append(measurement_result.ToString() + ",");

                        //record the time of the measurement
                        TemperatureMeasurement.MeasurementList[i].date_time = System.DateTime.Now;
                        double ole_date = TemperatureMeasurement.MeasurementList[i].date_time.ToOADate();
                        TemperatureMeasurement.MeasurementList[i].x_data.Append(ole_date.ToString() + ",");

                        //invoke the GUI to print the temperature data
                        data(measurement_result
                             , TemperatureMeasurement.MeasurementList[i].filename + " on CH" + TemperatureMeasurement.MeasurementList[i].channel_for_measurement.ToString() + " in " + TemperatureMeasurement.MeasurementList[i].lab_location + "\n"
                             , i);

                        TemperatureMeasurement.MeasurementList[i].Result = measurement_result;

                        try
                        {
                            if ((measurement_result < 25.0) || (measurement_result > 15.0))
                            {
                                measurement_anomalies++;
                            }
                        }
                        catch (Exception)
                        {
                            continue;
                        }


                        try
                        {
                            //write the measurement to file
                            writer.WriteLine(string.Concat(measurement_result.ToString() + ", " + TemperatureMeasurement.MeasurementList[i].MUX.getCurrentChannel().ToString()
                                                           , "," + TemperatureMeasurement.MeasurementList[i].date_time.ToString() + ", " + TemperatureMeasurement.MeasurementList[i].lab_location
                                                           , ", " + TemperatureMeasurement.MeasurementList[i].Filename));
                            writer.Flush();
                        }
                        catch (System.IO.IOException)
                        {
                            MessageBox.Show("Issue writing to file - Check Drive");
                            writer.Close();
                            //writer = System.IO.File.CreateText("c:" + TemperatureMeasurement.MeasurementList[i].Filename);
                        }



                        //now that the critical section has finished let the exiting thread decrement all the measurement priorities
                        //for (int i = 0; i < TemperatureMeasurement.ThreadCount; i++)
                        //{


                        //    current_measurements[i].AssignedThreadPriority--;
                        //    Monitor.PulseAll(lockthis);

                        //}

                        //if we have removed an item then we need to reorder the priorities
                        //if (measuring.measurementRemoved)
                        //{
                        //    measuring.measurementRemoved = false;
                        //    for (long i = measuring.measurementRemovalIndex; i < TemperatureMeasurement.ThreadCount; i++)
                        //    {


                        //        current_measurements[i].AssignedThreadPriority--;
                        //        Monitor.PulseAll(lockthis);

                        //    }
                        //}
                        writer.Close();
                    }

                    i++;
                }
            }
            //thread_count--;
        }