/// <summary>
/// Given three of the four current channels, calculates the
/// missing channel based on the relationship IR = IA + IB + IC.
/// </summary>
private void CalculateMissingCurrentChannel()
{
Meter meter;
DataSeries missingSeries;
// If the data group does not have exactly 3 channels,
// then there is no missing channel or there is not
// enough data to calculate the missing channel
if (DefinedCurrents != 3)
{
return;
}
// Get the meter associated with the channels in this data group
meter = (IA ?? IB).SeriesInfo.Channel.Meter;
if (m_iaIndex == -1)
{
// Calculate IA = IR - IB - IC
missingSeries = IR.Add(IB.Negate()).Add(IC.Negate());
missingSeries.SeriesInfo = GetSeriesInfo(meter, m_dataGroup, "Current", "AN", IR.SeriesInfo.Channel.AssetID);
missingSeries.Calculated = true;
m_iaIndex = m_dataGroup.DataSeries.Count;
m_dataGroup.Add(missingSeries);
}
else if (m_ibIndex == -1)
{
// Calculate IB = IR - IA - IC
missingSeries = IR.Add(IA.Negate()).Add(IC.Negate());
missingSeries.SeriesInfo = GetSeriesInfo(meter, m_dataGroup, "Current", "BN", IR.SeriesInfo.Channel.AssetID);
missingSeries.Calculated = true;
m_ibIndex = m_dataGroup.DataSeries.Count;
m_dataGroup.Add(missingSeries);
}
else if (m_icIndex == -1)
{
// Calculate IC = IR - IA - IB
missingSeries = IR.Add(IA.Negate()).Add(IB.Negate());
missingSeries.SeriesInfo = GetSeriesInfo(meter, m_dataGroup, "Current", "CN", IR.SeriesInfo.Channel.AssetID);
missingSeries.Calculated = true;
m_icIndex = m_dataGroup.DataSeries.Count;
m_dataGroup.Add(missingSeries);
}
else
{
// Calculate IR = IA + IB + IC
missingSeries = IA.Add(IB).Add(IC);
missingSeries.SeriesInfo = GetSeriesInfo(meter, m_dataGroup, "Current", "RES", IA.SeriesInfo.Channel.AssetID);
missingSeries.Calculated = true;
m_irIndex = m_dataGroup.DataSeries.Count;
m_dataGroup.Add(missingSeries);
}
}
/// <summary>
/// Given three of the four current channels, calculates the
/// missing channel based on the relationship IR = IA + IB + IC.
/// </summary>
/// <param name="meterInfo">Data context for accessing configuration tables in the database.</param>
public DataSeries CalculateMissingCurrentChannel(MeterInfoDataContext meterInfo)
{
Meter meter;
DataSeries missingSeries;
// If the data group does not have exactly 3 channels,
// then there is no missing channel or there is not
// enough data to calculate the missing channel
if (DefinedCurrents != 3)
{
return(null);
}
// Get the meter associated with the channels in this data group
meter = (IA ?? IB).SeriesInfo.Channel.Meter;
if (m_iaIndex == -1)
{
// Calculate IA = IR - IB - IC
missingSeries = IR.Add(IB.Negate()).Add(IC.Negate());
missingSeries.SeriesInfo = GetSeriesInfo(meterInfo, meter, m_dataGroup, "Current", "General1");
m_iaIndex = m_dataGroup.DataSeries.Count;
m_dataGroup.Add(missingSeries);
}
else if (m_ibIndex == -1)
{
// Calculate IB = IR - IA - IC
missingSeries = IR.Add(IA.Negate()).Add(IC.Negate());
missingSeries.SeriesInfo = GetSeriesInfo(meterInfo, meter, m_dataGroup, "Current", "General2");
m_ibIndex = m_dataGroup.DataSeries.Count;
m_dataGroup.Add(missingSeries);
}
else if (m_icIndex == -1)
{
// Calculate IC = IR - IA - IB
missingSeries = IR.Add(IA.Negate()).Add(IB.Negate());
missingSeries.SeriesInfo = GetSeriesInfo(meterInfo, meter, m_dataGroup, "Current", "General3");
m_icIndex = m_dataGroup.DataSeries.Count;
m_dataGroup.Add(missingSeries);
}
else
{
// Calculate IR = IA + IB + IC
missingSeries = IA.Add(IB).Add(IC);
missingSeries.SeriesInfo = GetSeriesInfo(meterInfo, meter, m_dataGroup, "Current", "RES");
m_irIndex = m_dataGroup.DataSeries.Count;
m_dataGroup.Add(missingSeries);
}
return(missingSeries);
}
