ViewModels/PoreDistributionViewModel.cs

@@ -251,7 +251,7 @@ namespace MembranePoreTester.ViewModels
         public ICommand RemoveDataPointCommand { get; }
         public ICommand CalculateCommand { get; }
         public ICommand GenerateReportCommand { get; }
-
+        private System.Windows.Threading.DispatcherTimer _timer;  // 添加定时器字段
         public PoreDistributionViewModel()
         {
             _plcService = App.PlcService;
@@ -272,11 +272,24 @@ namespace MembranePoreTester.ViewModels
 
             Record.DataPoints.CollectionChanged += (s, e) => UpdatePlot();
 
-            // 加到构造函数最后即可
             ClearAllCommand = new RelayCommand(ClearAllData);
 
             RemoveDataPointCommand = new RelayCommand(RemoveSelectedDataPoint, () => SelectedDataPoint != null);
 
+
+            // 启动定时器，每秒读取一次
+            _timer = new System.Windows.Threading.DispatcherTimer();
+            _timer.Interval = TimeSpan.FromSeconds(1);
+            _timer.Tick += async (s, e) =>
+            {
+                if (StationId > 0 && !IsDisposed)
+                {
+                    await ReadSpeedRateAsync();
+                }
+            };
+            _timer.Start();
+
+
             // 延迟2秒后读取，确保连接稳定
             Task.Delay(2000).ContinueWith(async _ =>
             {
@@ -290,6 +303,38 @@ namespace MembranePoreTester.ViewModels
             ClearData();
         }
 
+        private string _speedRate1;
+        public string SpeedRate1
+        {
+            get => _speedRate1;
+            set => SetProperty(ref _speedRate1, value);
+        }
+
+
+
+
+        private async Task ReadSpeedRateAsync()
+        {
+            try
+            {
+                float speedRate = 0;
+                switch (StationId)
+                {
+                    case 1:
+                        speedRate = await _plcService.ReadFloatAsync(_plcConfig.HPCoeff11); // 使用正确的地址
+                        SpeedRate1 = speedRate.ToString("F3");
+                        break;
+                        // case 2,3 可类似添加
+                }
+                // 如果需要刷新 Record 中的绑定（可选）
+                OnPropertyChanged(nameof(SpeedRate1));
+            }
+            catch (Exception ex)
+            {
+                System.Diagnostics.Debug.WriteLine($"读取加压速率失败: {ex.Message}");
+            }
+        }
+
         private async Task ReadPressureModeAsync()
         {
             await SafeExecuteAsync($"ReadPressureModeAsync{StationId}", async () =>