更新

ConeCalorimeter/Models/RealtimeDataRecord.cs

@@ -49,6 +49,14 @@ public sealed record RealtimeDataRecord(
             snapshot.TotalSmoke);
     }
 
+    public double MassLossRate =>
+        double.IsFinite(MassLoss) && TestSeconds > 0 ? MassLoss / TestSeconds : double.NaN;
+
+    public double HeatReleaseRateKw =>
+        double.IsFinite(HeatReleaseRate) ? HeatReleaseRate * 1000 : double.NaN;
+
     public double EffectiveHeatOfCombustion =>
-        TotalHeatRelease <= 0 ? 0 : HeatReleaseRate / Math.Max(TotalHeatRelease, 1);
+        double.IsFinite(HeatReleaseRate) && double.IsFinite(MassLossRate) && MassLossRate > 0
+            ? HeatReleaseRate / MassLossRate * 10
+            : double.NaN;
 }

ConeCalorimeter/Services/ExperimentDataService.cs

@@ -11,6 +11,8 @@ public sealed class ExperimentDataService : IExperimentDataService
     private readonly IRealtimeDataService _realtimeDataService;
     private readonly DispatcherTimer _timer;
     private readonly DateTime _startedAt = DateTime.Now;
+    private double _accumulatedTotalHeatRelease;
+    private double _accumulatedTotalSmoke;
 
     public ExperimentDataService(IRealtimeDataService realtimeDataService)
     {
@@ -38,18 +40,41 @@ public sealed class ExperimentDataService : IExperimentDataService
     public void ClearRecords()
     {
         Records.Clear();
+        _accumulatedTotalHeatRelease = 0;
+        _accumulatedTotalSmoke = 0;
     }
 
     private void RecordSnapshot(RealtimeSnapshot snapshot)
     {
-        CurrentSnapshot = snapshot;
-        Records.Add(RealtimeDataRecord.FromSnapshot(snapshot));
+        var accumulatedSnapshot = ApplyAccumulatedTotals(snapshot);
+
+        CurrentSnapshot = accumulatedSnapshot;
+        Records.Add(RealtimeDataRecord.FromSnapshot(accumulatedSnapshot));
 
         while (Records.Count > MaximumRows)
         {
             Records.RemoveAt(0);
         }
 
-        SnapshotUpdated?.Invoke(this, snapshot);
+        SnapshotUpdated?.Invoke(this, accumulatedSnapshot);
+    }
+
+    private RealtimeSnapshot ApplyAccumulatedTotals(RealtimeSnapshot snapshot)
+    {
+        if (double.IsFinite(snapshot.HeatReleaseRate))
+        {
+            _accumulatedTotalHeatRelease += snapshot.HeatReleaseRate;
+        }
+
+        if (double.IsFinite(snapshot.SmokeProduction))
+        {
+            _accumulatedTotalSmoke += snapshot.SmokeProduction;
+        }
+
+        return snapshot with
+        {
+            TotalHeatRelease = _accumulatedTotalHeatRelease,
+            TotalSmoke = _accumulatedTotalSmoke
+        };
     }
 }

ConeCalorimeter/Services/ModbusRealtimeDataService.cs

@@ -15,7 +15,6 @@ public sealed class ModbusRealtimeDataService : IRealtimeDataService
     private const ushort HeatReleaseRateRegister = 354;
     private const ushort Qa180Register = 366;
     private const ushort Qa300Register = 370;
-    private const ushort TotalHeatReleaseRegister = 372;
     private const ushort SmokeProductionRegister = 390;
     private const ushort IgnitionSecondsRegister = 1014;
     private const ushort TestSecondsRegister = 1015;
@@ -44,13 +43,13 @@ public sealed class ModbusRealtimeDataService : IRealtimeDataService
             HeatReleaseRate: ReadFloatOrEmpty(HeatReleaseRateRegister),
             Qa180: ReadFloatOrEmpty(Qa180Register),
             Qa300: ReadFloatOrEmpty(Qa300Register),
-            TotalHeatRelease: ReadFloatOrEmpty(TotalHeatReleaseRegister),
+            TotalHeatRelease: double.NaN,
             SmokeProduction: ReadFloatOrEmpty(SmokeProductionRegister),
             CurrentMass: double.NaN,
             MassLoss: double.NaN,
             IgnitionSeconds: ReadInt16OrEmpty(IgnitionSecondsRegister),
             TestSeconds: ReadInt16OrEmpty(TestSecondsRegister),
-            TotalSmoke: ReadFloatOrEmpty(SmokeProductionRegister));
+            TotalSmoke: double.NaN);
     }
 
     private double ReadFloatOrEmpty(ushort registerAddress)

ConeCalorimeter/Services/NpoiReportExportService.cs

@@ -18,9 +18,9 @@ public sealed class NpoiReportExportService : IReportExportService
         "CO (%)",
         "孔板压差 (Pa)",
         "孔板温度 (℃)",
-        "HRR50",
+        "HRR",
         "THR (MJ/m2)",
-        "SPR50",
+        "SPR",
         "TSR (m2)",
         "MLR (g/s)",
         "热释放KW/m2",
@@ -119,7 +119,7 @@ public sealed class NpoiReportExportService : IReportExportService
         {
             var row = sheet.CreateRow(i + 1);
             var record = records[i];
-            SetNumeric(row, 0, record.TestSeconds);
+            SetNumeric(row, 0, record.TestSeconds >= 0 ? record.TestSeconds : double.NaN);
             SetNumeric(row, 1, record.Oxygen);
             SetNumeric(row, 2, record.CarbonDioxide);
             SetNumeric(row, 3, record.CarbonMonoxide);
@@ -129,11 +129,11 @@ public sealed class NpoiReportExportService : IReportExportService
             SetNumeric(row, 7, record.TotalHeatRelease);
             SetNumeric(row, 8, record.SmokeProduction);
             SetNumeric(row, 9, record.TotalSmoke);
-            SetNumeric(row, 10, record.MassLoss);
-            SetNumeric(row, 11, record.HeatReleaseRate);
+            SetNumeric(row, 10, record.MassLossRate);
+            SetNumeric(row, 11, record.HeatReleaseRateKw);
             SetNumeric(row, 12, record.EffectiveHeatOfCombustion);
             SetNumeric(row, 13, record.MassLoss);
-            SetNumeric(row, 14, record.ConeTemperature);
+            SetNumeric(row, 14, record.SampleTemperature);
         }
 
         for (var i = 0; i < DataHeaders.Length; i++)
@@ -223,7 +223,10 @@ public sealed class NpoiReportExportService : IReportExportService
 
     private static void SetNumeric(IRow row, int columnIndex, double value)
     {
-        row.CreateCell(columnIndex).SetCellValue(double.IsFinite(value) ? value : 0);
+        if (double.IsFinite(value))
+        {
+            row.CreateCell(columnIndex).SetCellValue(value);
+        }
     }
 
     private static string FindTemplatePath()
@@ -270,7 +273,7 @@ public sealed class NpoiReportExportService : IReportExportService
 
     private static string FormatWithUnit(double? value, string unit)
     {
-        return value is null ? "" : $"{value.Value:0.00} {unit}";
+        return value is null || !double.IsFinite(value.Value) ? "" : $"{value.Value:0.00} {unit}";
     }
 
     private static string FirstNonEmpty(params string[] values)

ConeCalorimeter/ViewModels/RealtimeDataRowViewModel.cs

@@ -21,8 +21,8 @@ public sealed class RealtimeDataRowViewModel
         ThrText = Format(record.TotalHeatRelease);
         Spr50Text = Format(record.SmokeProduction);
         TsrText = Format(record.TotalSmoke);
-        MlrText = Format(record.MassLoss);
-        HeatReleaseText = Format(record.HeatReleaseRate);
+        MlrText = Format(record.MassLossRate);
+        HeatReleaseText = Format(record.HeatReleaseRateKw);
         EhcText = Format(record.EffectiveHeatOfCombustion);
         MassLossText = Format(record.MassLoss);
         SampleTemperatureText = Format(record.SampleTemperature, "0.0");

ConeCalorimeter/Views/RealtimeDataView.xaml

@@ -139,9 +139,9 @@
                         <DataGridTextColumn Header="CO (%)" Binding="{Binding CarbonMonoxideText}" Width="82" ElementStyle="{StaticResource RealtimeTextElementStyle}" />
                         <DataGridTextColumn Header="孔板压差 (Pa)" Binding="{Binding OrificePressureText}" Width="116" ElementStyle="{StaticResource RealtimeTextElementStyle}" />
                         <DataGridTextColumn Header="孔板温度 (℃)" Binding="{Binding OrificeTemperatureText}" Width="116" ElementStyle="{StaticResource RealtimeTextElementStyle}" />
-                        <DataGridTextColumn Header="HRR50" Binding="{Binding Hrr50Text}" Width="78" ElementStyle="{StaticResource RealtimeTextElementStyle}" />
+                        <DataGridTextColumn Header="HRR" Binding="{Binding Hrr50Text}" Width="78" ElementStyle="{StaticResource RealtimeTextElementStyle}" />
                         <DataGridTextColumn Header="THR (MJ/m2)" Binding="{Binding ThrText}" Width="108" ElementStyle="{StaticResource RealtimeTextElementStyle}" />
-                        <DataGridTextColumn Header="SPR50" Binding="{Binding Spr50Text}" Width="78" ElementStyle="{StaticResource RealtimeTextElementStyle}" />
+                        <DataGridTextColumn Header="SPR" Binding="{Binding Spr50Text}" Width="78" ElementStyle="{StaticResource RealtimeTextElementStyle}" />
                         <DataGridTextColumn Header="TSR (m2)" Binding="{Binding TsrText}" Width="88" ElementStyle="{StaticResource RealtimeTextElementStyle}" />
                         <DataGridTextColumn Header="MLR (g/s)" Binding="{Binding MlrText}" Width="92" ElementStyle="{StaticResource RealtimeTextElementStyle}" />
                         <DataGridTextColumn Header="热释放KW/m2" Binding="{Binding HeatReleaseText}" Width="122" ElementStyle="{StaticResource RealtimeTextElementStyle}" />