更新20260622

Footwear Test methodsfor wholeshoe Slipresistanceperformance/Services/SlipResistanceDeviceService.cs

@@ -50,6 +50,12 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Services
         private double verticalLoadN;
         private double horizontalFrictionN;
         private double displacementMm;
+
+        // 轻量滑动平均：滤掉力信号的高频抖动，但窗口很短（默认 3 点≈30ms@100Hz）以保留静摩擦首峰，
+        // 满足 GB/T 3903.6 数据采集频率（≥30Hz、0.3~0.6s 内≥10 点）的前提下让曲线更接近标准。
+        private const int ForceFilterWindow = 3;
+        private readonly Queue<double> pressureFilterSamples = new();
+        private readonly Queue<double> frictionFilterSamples = new();
         private int pressureRawValue;
         private int frictionRawValue1;
         private int frictionRawValue2;
@@ -315,8 +321,8 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Services
                         hasAdcRawValues = true;
                         if (conversion.IsValid)
                         {
-                            verticalLoadN = conversion.Pressure;
-                            horizontalFrictionN = conversion.Friction;
+                            verticalLoadN = MovingAverage(pressureFilterSamples, conversion.Pressure);
+                            horizontalFrictionN = MovingAverage(frictionFilterSamples, conversion.Friction);
                             adcLastError = string.Empty;
                             isAdcConnected = true;
                         }
@@ -324,6 +330,8 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Services
                         {
                             verticalLoadN = 0;
                             horizontalFrictionN = 0;
+                            pressureFilterSamples.Clear();
+                            frictionFilterSamples.Clear();
                             adcLastError = conversion.Error;
                             isAdcConnected = false;
                         }
@@ -633,6 +641,23 @@ namespace Footwear_Test_methodsfor_wholeshoe_Slipresistanceperformance.Services
         private static double ConvertAdc(int rawValue, double zero, double coefficient) =>
             (rawValue - zero) / coefficient;
 
+        private static double MovingAverage(Queue<double> window, double sample)
+        {
+            window.Enqueue(sample);
+            while (window.Count > ForceFilterWindow)
+            {
+                window.Dequeue();
+            }
+
+            var sum = 0.0;
+            foreach (var value in window)
+            {
+                sum += value;
+            }
+
+            return sum / window.Count;
+        }
+
         private static void TryParseSetting(string value, string label, bool requireNonZero, List<string> invalid, out double numericValue)
         {
             if (!TryParseDouble(value, out numericValue))