89 lines
2.6 KiB
C#
89 lines
2.6 KiB
C#
///
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/// Copyright (c) 2016 Sensus Metering Systems
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///
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using System;
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using log4net;
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namespace TBF.Rig.Operations
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{
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/// <summary>
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/// Implements Eoperation to calculate (accumulate) enthalpies of heat meters
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///
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/// Events: Event.None (always)
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/// </summary>
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public class EnthalpyCalculationOp : IOperation
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{
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private static readonly ILog log = LogManager.GetLogger(typeof(EnthalpyCalculationOp));
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public override string ToString() { return string.Format("EnthalpyCalculationOp(.,{0})", path.Name); }
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///
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/// Private fields
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///
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HeatMetersPath path;
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double[] enthalpy;
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int lastRefPulses;
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public static EnthalpyCalculationOp GetOp(double[] enthalpy, HeatMetersPath path)
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{
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try
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{
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EnthalpyCalculationOp op = new EnthalpyCalculationOp(enthalpy, path);
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return op;
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}
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catch (Exception exc)
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{
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log.ErrorFormat("Failed to create 'EnthalpyCalculationOp' operation: {0}", exc.Message);
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return null;
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}
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}
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/// <summary>
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/// Constructors, optional argument is a timer name (you can create more then one timer)
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/// </summary>
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public EnthalpyCalculationOp(double[] enthalpy, HeatMetersPath path)
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{
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if (enthalpy == null) throw new Exception("enthalpy[] array missing");
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this.enthalpy = enthalpy;
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if (path == null) throw new Exception("path argument in EnthalpyCalculationOp constructor");
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}
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/// <param name="obj">Time period (TimeSpan)</param>
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public void Start()
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{
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lastRefPulses = Rig.Sequences.ProcessData.RefPulses;
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for (int i = 0; i < enthalpy.Length; i++) enthalpy[i] = 0;
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}
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public Event Run()
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{
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AccumulateEnthalpy();
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return Event.None;
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}
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public void Stop()
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{
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AccumulateEnthalpy();
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}
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private void AccumulateEnthalpy()
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{
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/// Calculate # of reference pulses
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int newRefPulses = Rig.Sequences.ProcessData.RefPulses;
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int deltaPulses = newRefPulses - lastRefPulses;
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lastRefPulses = newRefPulses;
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/// Calculate volume [l]
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double deltaVolume = deltaPulses * Rig.Sequences.ProcessData.LtrPerRefPulse;
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for (int i = 0; i < enthalpy.Length; i++)
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{
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//enthalpy[i] += deltaVolume * (path.TempMetersWarm[i].ReadTemperature() - path.TempMetersCold[i].ReadTemperature());
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}
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}
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}
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}
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