双队列的打通 实时按钮的切换 补充测试用例

XP.Hardware.RaySource.Comet.Host/bin/Debug/XP.Hardware.RaySource.Comet.Host.exe.config

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <runtime>
-    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
-      <dependentAssembly>
-        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-13.0.0.0" newVersion="13.0.0.0" />
-      </dependentAssembly>
-    </assemblyBinding>
-  </runtime>
-</configuration>

XplorePlane.Tests/Services/CncExecutionServiceTests.cs

@@ -9,8 +9,10 @@ using FsCheck;
 using FsCheck.Fluent;
 using FsCheck.Xunit;
 using Moq;
+using Prism.Events;
 using XP.Common.Logging.Interfaces;
 using XP.Hardware.Detector.Abstractions;
+using XplorePlane.Events;
 using XplorePlane.Models;
 using XplorePlane.Services.Cnc;
 using XplorePlane.Services;
@@ -185,8 +187,14 @@ internal sealed class SynchronousProgress<T> : IProgress<T>
             var mockAppStateService = new Mock<IAppStateService>();
             var mockPipelineExecutionService = new Mock<IPipelineExecutionService>();
             var mockImageProcessingService = new Mock<IImageProcessingService>();
+            var mockEventAggregator = new Mock<IEventAggregator>();
             mockLogger.Setup(l => l.ForModule<CncExecutionService>()).Returns(mockLogger.Object);
 
+            // Set up GetEvent<DetectorDisconnectedEvent>() so the constructor subscription doesn't throw
+            mockEventAggregator
+                .Setup(ea => ea.GetEvent<DetectorDisconnectedEvent>())
+                .Returns(new DetectorDisconnectedEvent());
+
             mockStore.Setup(s => s.BeginRunAsync(
                     It.IsAny<InspectionRunRecord>(),
                     It.IsAny<InspectionAssetWriteRequest>()))
@@ -211,7 +219,8 @@ internal sealed class SynchronousProgress<T> : IProgress<T>
                 mockMainViewportService.Object,
                 mockAppStateService.Object,
                 mockPipelineExecutionService.Object,
-                mockImageProcessingService.Object);
+                mockImageProcessingService.Object,
+                mockEventAggregator.Object);
             return (service, mockStore, mockLogger, mockMainViewportService, mockAppStateService);
         }
 

XplorePlane.Tests/Services/ConfigCorrectionPropertyTests.cs

@@ -0,0 +1,101 @@
+using FsCheck;
+using FsCheck.Fluent;
+using FsCheck.Xunit;
+using Moq;
+using Prism.Events;
+using XP.Common.Logging.Interfaces;
+using XplorePlane.Services.MainViewport;
+
+namespace XplorePlane.Tests.Services
+{
+    /// <summary>
+    /// FsCheck property-based tests for DetectorFramePipelineService configuration correction.
+    /// Property 11 validates that values &lt;= 0 are corrected to 1.
+    /// </summary>
+    public class ConfigCorrectionPropertyTests
+    {
+        // ── Helpers ──────────────────────────────────────────────────────────
+
+        private static DetectorFramePipelineService CreateServiceWithConfig(
+            int acquireCapacity,
+            int processCapacity,
+            int processEveryN)
+        {
+            var mockLogger = new Mock<ILoggerService>();
+            mockLogger.Setup(l => l.ForModule<DetectorFramePipelineService>()).Returns(mockLogger.Object);
+
+            var mockMainViewport = new Mock<IMainViewportService>();
+            var eventAggregator = new EventAggregator();
+
+            return new DetectorFramePipelineService(
+                eventAggregator,
+                mockMainViewport.Object,
+                mockLogger.Object,
+                acquireCapacity,
+                processCapacity,
+                processEveryN);
+        }
+
+        // ── Property 11 ──────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 11: 配置值下界修正
+        // Validates: Requirements 6.3, 6.4
+        //
+        // For any integer config value <= 0 (ProcessEveryNFrames, AcquireQueueCapacity,
+        // ProcessQueueCapacity), DetectorFramePipelineService corrects it to 1.
+        [Property(MaxTest = 100)]
+        public Property InvalidConfigValues_AreCorrectedToOne()
+        {
+            // Generate values <= 0 (including 0 and negative integers)
+            var nonPositiveGen = Gen.Choose(int.MinValue / 2, 0);
+
+            var gen =
+                from acquireCapacity in nonPositiveGen
+                from processCapacity in nonPositiveGen
+                from processEveryN in nonPositiveGen
+                select (acquireCapacity, processCapacity, processEveryN);
+
+            return Prop.ForAll(
+                gen.ToArbitrary(),
+                tuple =>
+                {
+                    var (acquireCapacity, processCapacity, processEveryN) = tuple;
+
+                    using var service = CreateServiceWithConfig(acquireCapacity, processCapacity, processEveryN);
+
+                    // All three values must be corrected to 1
+                    bool acquireCorrected = service.AcquireQueueCapacity == 1;
+                    bool processCorrected = service.ProcessQueueCapacity == 1;
+                    bool everyNCorrected = service.ProcessEveryNFrames == 1;
+
+                    return acquireCorrected && processCorrected && everyNCorrected;
+                });
+        }
+
+        // Additional property: valid positive values are preserved as-is
+        [Property(MaxTest = 100)]
+        public Property ValidConfigValues_ArePreservedAsIs()
+        {
+            var positiveGen = Gen.Choose(1, 1000);
+
+            var gen =
+                from acquireCapacity in positiveGen
+                from processCapacity in positiveGen
+                from processEveryN in positiveGen
+                select (acquireCapacity, processCapacity, processEveryN);
+
+            return Prop.ForAll(
+                gen.ToArbitrary(),
+                tuple =>
+                {
+                    var (acquireCapacity, processCapacity, processEveryN) = tuple;
+
+                    using var service = CreateServiceWithConfig(acquireCapacity, processCapacity, processEveryN);
+
+                    return service.AcquireQueueCapacity == acquireCapacity
+                        && service.ProcessQueueCapacity == processCapacity
+                        && service.ProcessEveryNFrames == processEveryN;
+                });
+        }
+    }
+}

XplorePlane.Tests/Services/DetectorFramePipelineServicePropertyTests.cs

@@ -0,0 +1,194 @@
+using System;
+using System.Threading;
+using FsCheck;
+using FsCheck.Fluent;
+using FsCheck.Xunit;
+using Moq;
+using Prism.Events;
+using XP.Common.Logging.Interfaces;
+using XP.Hardware.Detector.Abstractions;
+using XP.Hardware.Detector.Abstractions.Events;
+using XplorePlane.Services.MainViewport;
+
+namespace XplorePlane.Tests.Services
+{
+    /// <summary>
+    /// FsCheck property-based tests for DetectorFramePipelineService.
+    /// Properties 6–8 validate queue bounds and sampling correctness.
+    /// </summary>
+    public class DetectorFramePipelineServicePropertyTests
+    {
+        // ── Helpers ──────────────────────────────────────────────────────────
+
+        /// <summary>
+        /// Creates a DetectorFramePipelineService with the given capacity/sampling config.
+        /// Uses the internal test constructor to bypass App.config reads.
+        /// Uses a real EventAggregator so we can publish ImageCapturedEvent to drive the service.
+        /// </summary>
+        private static (DetectorFramePipelineService Service, EventAggregator EventAggregator)
+            CreateService(int acquireCapacity = 16, int processCapacity = 8, int processEveryN = 1)
+        {
+            var mockLogger = new Mock<ILoggerService>();
+            mockLogger.Setup(l => l.ForModule<DetectorFramePipelineService>()).Returns(mockLogger.Object);
+
+            var mockMainViewport = new Mock<IMainViewportService>();
+            var eventAggregator = new EventAggregator();
+
+            var service = new DetectorFramePipelineService(
+                eventAggregator,
+                mockMainViewport.Object,
+                mockLogger.Object,
+                acquireCapacity,
+                processCapacity,
+                processEveryN);
+
+            return (service, eventAggregator);
+        }
+
+        /// <summary>
+        /// Publishes M frames via the EventAggregator and waits for background processing.
+        /// </summary>
+        private static void PublishFrames(EventAggregator eventAggregator, int frameCount, int width = 4, int height = 4)
+        {
+            for (int i = 0; i < frameCount; i++)
+            {
+                var args = new ImageCapturedEventArgs
+                {
+                    ImageData = new ushort[width * height],
+                    Width = (uint)width,
+                    Height = (uint)height,
+                    FrameNumber = i + 1,
+                    CaptureTime = DateTime.UtcNow
+                };
+                eventAggregator.GetEvent<ImageCapturedEvent>().Publish(args);
+            }
+
+            // Wait for background thread processing to complete.
+            // The subscription runs on BackgroundThread, so we need a brief wait.
+            Thread.Sleep(300);
+        }
+
+        // ── Property 6 ───────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 6: 采集队列有界不变量
+        // Validates: Requirements 2.2
+        [Property(MaxTest = 100)]
+        public Property AcquireQueueCount_NeverExceedsCapacity()
+        {
+            var gen =
+                from capacity in Gen.Choose(1, 10)
+                from frameCount in Gen.Choose(1, 100)
+                select (capacity, frameCount);
+
+            return Prop.ForAll(
+                gen.ToArbitrary(),
+                tuple =>
+                {
+                    var (capacity, frameCount) = tuple;
+                    var (service, eventAggregator) = CreateService(acquireCapacity: capacity);
+
+                    try
+                    {
+                        PublishFrames(eventAggregator, frameCount);
+                        return service.AcquireQueueCount <= service.AcquireQueueCapacity;
+                    }
+                    finally
+                    {
+                        service.Dispose();
+                    }
+                });
+        }
+
+        // ── Property 7 ───────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 7: 处理队列有界不变量
+        // Validates: Requirements 2.4
+        [Property(MaxTest = 100)]
+        public Property ProcessQueueCount_NeverExceedsCapacity()
+        {
+            var gen =
+                from capacity in Gen.Choose(1, 10)
+                from frameCount in Gen.Choose(1, 100)
+                select (capacity, frameCount);
+
+            return Prop.ForAll(
+                gen.ToArbitrary(),
+                tuple =>
+                {
+                    var (capacity, frameCount) = tuple;
+                    var (service, eventAggregator) = CreateService(processCapacity: capacity);
+
+                    try
+                    {
+                        PublishFrames(eventAggregator, frameCount);
+                        return service.ProcessQueueCount <= service.ProcessQueueCapacity;
+                    }
+                    finally
+                    {
+                        service.Dispose();
+                    }
+                });
+        }
+
+        // ── Property 8 ───────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 8: 隔帧抽样正确性
+        // Validates: Requirements 2.3
+        //
+        // For any N (ProcessEveryNFrames) and M frames, the number of frames entering
+        // the process queue equals ceil(M / N).
+        //
+        // We use a large process queue capacity to avoid overflow dropping frames,
+        // and count frames via ProcessFrameDequeued events.
+        [Property(MaxTest = 100)]
+        public Property ProcessQueueEntries_EqualsCeilMDivN()
+        {
+            var gen =
+                from n in Gen.Choose(1, 10)
+                from m in Gen.Choose(1, 50)
+                select (n, m);
+
+            return Prop.ForAll(
+                gen.ToArbitrary(),
+                tuple =>
+                {
+                    var (n, m) = tuple;
+
+                    // Use a large process queue capacity so no frames are dropped due to overflow
+                    var (service, eventAggregator) = CreateService(
+                        acquireCapacity: 200,
+                        processCapacity: 200,
+                        processEveryN: n);
+
+                    int dequeuedCount = 0;
+                    using var allDequeued = new SemaphoreSlim(0);
+                    int expected = (int)Math.Ceiling((double)m / n);
+
+                    service.ProcessFrameDequeued += (_, __) =>
+                    {
+                        int count = Interlocked.Increment(ref dequeuedCount);
+                        if (count >= expected)
+                            allDequeued.Release();
+                    };
+
+                    try
+                    {
+                        PublishFrames(eventAggregator, m);
+
+                        // Wait up to 5 seconds for all expected frames to be dequeued
+                        bool completed = allDequeued.Wait(TimeSpan.FromSeconds(5));
+
+                        // If we didn't get the expected count, give a bit more time
+                        if (!completed)
+                            Thread.Sleep(500);
+
+                        return dequeuedCount == expected;
+                    }
+                    finally
+                    {
+                        service.Dispose();
+                    }
+                });
+        }
+    }
+}

XplorePlane.Tests/Services/MainViewportServicePropertyTests.cs

@@ -0,0 +1,208 @@
+using System;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using FsCheck;
+using FsCheck.Fluent;
+using FsCheck.Xunit;
+using Moq;
+using XP.Common.Logging.Interfaces;
+using XplorePlane.Services.MainViewport;
+
+namespace XplorePlane.Tests.Services
+{
+    /// <summary>
+    /// FsCheck property-based tests for MainViewportService.
+    /// Uses the real MainViewportService (no mocking of the service itself).
+    /// </summary>
+    public class MainViewportServicePropertyTests
+    {
+        // ── Helpers ──────────────────────────────────────────────────────────
+
+        private static MainViewportService CreateService()
+        {
+            var mockLogger = new Mock<ILoggerService>();
+            mockLogger.Setup(l => l.ForModule<MainViewportService>()).Returns(mockLogger.Object);
+            return new MainViewportService(mockLogger.Object);
+        }
+
+        /// <summary>
+        /// Creates a frozen BitmapSource suitable for cross-thread use in tests.
+        /// </summary>
+        private static BitmapSource CreateFrozenBitmap(int width = 4, int height = 4)
+        {
+            var pixels = new byte[width * height * 4];
+            var bitmap = BitmapSource.Create(
+                width, height, 96, 96,
+                PixelFormats.Bgra32, null,
+                pixels, width * 4);
+            bitmap.Freeze();
+            return bitmap;
+        }
+
+        /// <summary>
+        /// Generator for DetectorFrame with a frozen BitmapSource.
+        /// </summary>
+        private static Gen<DetectorFrame> DetectorFrameGen =>
+            from frameId in Gen.Choose(1, 100000).Select(i => (long)i)
+            from width in Gen.Choose(1, 64)
+            from height in Gen.Choose(1, 64)
+            select new DetectorFrame(
+                frameId: frameId,
+                captureTime: DateTime.UtcNow,
+                width: width,
+                height: height,
+                rawPixels: new ushort[width * height],
+                previewImage: CreateFrozenBitmap(width, height));
+
+        // ── Property 1 ───────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 1: 实时模式下帧更新触发显示刷新
+        // Validates: Requirements 3.2
+        [Property(MaxTest = 100)]
+        public Property LiveDetector_RealtimeEnabled_UpdateDetectorFrame_UpdatesDisplayAndRaisesEvent()
+        {
+            return Prop.ForAll(
+                DetectorFrameGen.ToArbitrary(),
+                frame =>
+                {
+                    var service = CreateService();
+
+                    // Ensure we are in LiveDetector mode with realtime enabled (default state)
+                    service.SetSourceMode(MainViewportSourceMode.LiveDetector);
+                    service.SetRealtimeDisplayEnabled(true);
+
+                    bool stateChangedRaised = false;
+                    service.StateChanged += (_, __) => stateChangedRaised = true;
+
+                    service.UpdateDetectorFrame(frame);
+
+                    bool imageMatches = ReferenceEquals(service.CurrentDisplayImage, frame.PreviewImage);
+                    bool eventRaised = stateChangedRaised;
+
+                    return imageMatches && eventRaised;
+                });
+        }
+
+        // ── Property 2 ───────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 2: 实时关闭时帧更新不触发显示刷新
+        // Validates: Requirements 3.3
+        [Property(MaxTest = 100)]
+        public Property LiveDetector_RealtimeDisabled_UpdateDetectorFrame_NoEventAndImageUnchanged()
+        {
+            return Prop.ForAll(
+                DetectorFrameGen.ToArbitrary(),
+                frame =>
+                {
+                    var service = CreateService();
+
+                    // Set up: LiveDetector mode, realtime disabled
+                    service.SetSourceMode(MainViewportSourceMode.LiveDetector);
+                    service.SetRealtimeDisplayEnabled(false);
+
+                    // Capture the display image before the update
+                    var imageBefore = service.CurrentDisplayImage;
+
+                    bool stateChangedRaised = false;
+                    service.StateChanged += (_, __) => stateChangedRaised = true;
+
+                    service.UpdateDetectorFrame(frame);
+
+                    bool noEvent = !stateChangedRaised;
+                    bool imageUnchanged = ReferenceEquals(service.CurrentDisplayImage, imageBefore);
+
+                    return noEvent && imageUnchanged;
+                });
+        }
+
+        // ── Property 3 ───────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 3: ManualImage 模式下探测器帧不覆盖显示图像
+        // Validates: Requirements 3.4
+        [Property(MaxTest = 100)]
+        public Property ManualImage_MultipleUpdateDetectorFrame_DisplayAlwaysManualImage()
+        {
+            var gen =
+                from frameCount in Gen.Choose(1, 10)
+                from frames in Gen.ListOf<DetectorFrame>(DetectorFrameGen, frameCount)
+                select frames;
+
+            return Prop.ForAll(
+                gen.ToArbitrary(),
+                frames =>
+                {
+                    var service = CreateService();
+
+                    // Set a manual image first
+                    var manualImage = CreateFrozenBitmap(8, 8);
+                    service.SetManualImage(manualImage, "test.png");
+
+                    // Verify we are in ManualImage mode
+                    if (service.CurrentSourceMode != MainViewportSourceMode.ManualImage)
+                        return false;
+
+                    // Call UpdateDetectorFrame multiple times
+                    foreach (var frame in (System.Collections.Generic.IEnumerable<DetectorFrame>)frames)
+                    {
+                        service.UpdateDetectorFrame(frame);
+                    }
+
+                    // CurrentDisplayImage must still be the manual image
+                    return ReferenceEquals(service.CurrentDisplayImage, manualImage);
+                });
+        }
+
+        // ── Property 4 ───────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 4: CNC 运行时 SetManualImage 被忽略
+        // Validates: Requirements 3.10
+        [Property(MaxTest = 100)]
+        public Property CncRunning_SetManualImage_SourceModeRemainsLiveDetector()
+        {
+            return Prop.ForAll(
+                DetectorFrameGen.ToArbitrary(),
+                frame =>
+                {
+                    var service = CreateService();
+
+                    // Start CNC running
+                    service.SetCncRunning(true);
+
+                    // Attempt to set a manual image
+                    var manualImage = CreateFrozenBitmap(4, 4);
+                    service.SetManualImage(manualImage, "manual.png");
+
+                    // CurrentSourceMode must remain LiveDetector
+                    return service.CurrentSourceMode == MainViewportSourceMode.LiveDetector;
+                });
+        }
+
+        // ── Property 5 ───────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 5: CNC 运行时无法关闭实时刷新
+        // Validates: Requirements 3.11
+        [Property(MaxTest = 100)]
+        public Property CncRunning_SetRealtimeDisplayEnabledFalse_IsRealtimeDisplayEnabledRemainsTrue()
+        {
+            // No generator needed — fixed input
+            return Prop.ForAll(
+                Gen.Constant(true).ToArbitrary(),
+                _ =>
+                {
+                    var service = CreateService();
+
+                    // Ensure realtime is enabled first
+                    service.SetRealtimeDisplayEnabled(true);
+
+                    // Start CNC running
+                    service.SetCncRunning(true);
+
+                    // Attempt to disable realtime display
+                    service.SetRealtimeDisplayEnabled(false);
+
+                    // IsRealtimeDisplayEnabled must remain true
+                    return service.IsRealtimeDisplayEnabled;
+                });
+        }
+    }
+}

XplorePlane.Tests/ViewModels/ViewportPanelViewModelPropertyTests.cs

@@ -0,0 +1,216 @@
+using System;
+using System.Threading;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Threading;
+using FsCheck;
+using FsCheck.Fluent;
+using FsCheck.Xunit;
+using Moq;
+using Prism.Events;
+using XP.Common.Logging.Interfaces;
+using XplorePlane.Events;
+using XplorePlane.Models;
+using XplorePlane.Services.AppState;
+using XplorePlane.Services.MainViewport;
+using XplorePlane.ViewModels;
+
+namespace XplorePlane.Tests.ViewModels
+{
+    /// <summary>
+    /// FsCheck property-based tests for ViewportPanelViewModel.
+    /// Properties 9–10 validate IsAnimatedSwitchEnabled logic and ImageInfo protection.
+    /// </summary>
+    public class ViewportPanelViewModelPropertyTests
+    {
+        // ── Helpers ──────────────────────────────────────────────────────────
+
+        /// <summary>
+        /// Runs an action on a dedicated STA thread with a SynchronizationContext,
+        /// which satisfies Prism's UIThread requirement for EventAggregator.
+        /// </summary>
+        private static T RunOnStaThread<T>(Func<T> action)
+        {
+            T result = default;
+            Exception exception = null;
+
+            var thread = new Thread(() =>
+            {
+                SynchronizationContext.SetSynchronizationContext(new DispatcherSynchronizationContext());
+                try
+                {
+                    result = action();
+                }
+                catch (Exception ex)
+                {
+                    exception = ex;
+                }
+            });
+            thread.SetApartmentState(ApartmentState.STA);
+            thread.Start();
+            thread.Join();
+
+            if (exception != null)
+                throw new Exception("STA thread threw an exception", exception);
+
+            return result;
+        }
+
+        // ── Property 9 ───────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 9: AnimatedSwitch 可用状态与连接/CNC 状态一致
+        // Validates: Requirements 3.13, 7.5, 7.6
+        //
+        // For any combination of IsDetectorConnected and IsCncRunning,
+        // IsAnimatedSwitchEnabled always equals IsDetectorConnected && !IsCncRunning.
+        //
+        // The implementation in ViewportPanelViewModel computes:
+        //   IsAnimatedSwitchEnabled = _isDetectorConnected && !_isCncRunning
+        // We verify this formula holds for all boolean combinations.
+        [Property(MaxTest = 100)]
+        public Property IsAnimatedSwitchEnabled_AlwaysEqualsDetectorConnectedAndNotCncRunning()
+        {
+            var gen =
+                from isDetectorConnected in ArbMap.Default.GeneratorFor<bool>()
+                from isCncRunning in ArbMap.Default.GeneratorFor<bool>()
+                select (isDetectorConnected, isCncRunning);
+
+            return Prop.ForAll(
+                gen.ToArbitrary(),
+                tuple =>
+                {
+                    var (isDetectorConnected, isCncRunning) = tuple;
+
+                    // Run the entire test on a single STA thread with SynchronizationContext
+                    return RunOnStaThread(() =>
+                    {
+                        var mockViewport = new Mock<IMainViewportService>();
+                        mockViewport.Setup(s => s.CurrentDisplayImage).Returns((ImageSource)null);
+                        mockViewport.Setup(s => s.CurrentDisplayInfo).Returns("等待探测器图像...");
+                        mockViewport.Setup(s => s.IsRealtimeDisplayEnabled).Returns(true);
+                        mockViewport.Setup(s => s.IsCncRunning).Returns(isCncRunning);
+
+                        var mockAppState = new Mock<IAppStateService>();
+                        mockAppState.SetupAdd(s => s.DetectorStateChanged += It.IsAny<EventHandler<StateChangedEventArgs<DetectorState>>>());
+
+                        var mockLogger = new Mock<ILoggerService>();
+                        mockLogger.Setup(l => l.ForModule<ViewportPanelViewModel>()).Returns(mockLogger.Object);
+
+                        var eventAggregator = new EventAggregator();
+
+                        var vm = new ViewportPanelViewModel(
+                            mockViewport.Object,
+                            eventAggregator,
+                            mockAppState.Object,
+                            mockLogger.Object);
+
+                        // Simulate detector connection state change via DetectorStateChanged event.
+                        var detectorState = new DetectorState(isDetectorConnected, false, 0, "");
+                        var oldState = new DetectorState(!isDetectorConnected, false, 0, "");
+                        var stateChangedArgs = new StateChangedEventArgs<DetectorState>(oldState, detectorState);
+                        mockAppState.Raise(s => s.DetectorStateChanged += null, stateChangedArgs);
+
+                        // Pump the dispatcher to process BeginInvoke callbacks
+                        Dispatcher.CurrentDispatcher.Invoke(() => { }, DispatcherPriority.Background);
+
+                        // Simulate CNC running state via StateChanged on the viewport service
+                        mockViewport.Setup(s => s.IsCncRunning).Returns(isCncRunning);
+                        mockViewport.Raise(s => s.StateChanged += null, EventArgs.Empty);
+
+                        // Pump the dispatcher again
+                        Dispatcher.CurrentDispatcher.Invoke(() => { }, DispatcherPriority.Background);
+
+                        // The core invariant: IsAnimatedSwitchEnabled == IsDetectorConnected && !IsCncRunning
+                        return vm.IsAnimatedSwitchEnabled == (vm.IsDetectorConnected && !isCncRunning);
+                    });
+                });
+        }
+
+        // ── Property 10 ──────────────────────────────────────────────────────
+
+        // Feature: live-image-display, Property 10: 测量模式下 ImageInfo 不被覆盖
+        // Validates: Requirements 5.3
+        //
+        // For any active measurement mode (CurrentMeasurementMode != None) and any number
+        // of StateChanged triggers, ImageInfo always retains the measurement hint text
+        // and is not overwritten by service state.
+        //
+        // Implementation note: ViewportPanelViewModel.OnMainViewportStateChanged calls
+        //   UpdateFromState(updateInfo: CurrentMeasurementMode == MeasurementToolMode.None)
+        // When CurrentMeasurementMode != None, updateInfo is false, so ImageInfo is NOT updated.
+        // We verify this by directly setting CurrentMeasurementMode and triggering StateChanged.
+        [Property(MaxTest = 100)]
+        public Property ActiveMeasurementMode_ImageInfo_NotOverwrittenByStateChanged()
+        {
+            // Generate non-None measurement modes
+            var modeGen = Gen.Elements(
+                MeasurementToolMode.PointDistance,
+                MeasurementToolMode.PointLineDistance,
+                MeasurementToolMode.Angle,
+                MeasurementToolMode.ThroughHoleFillRate);
+
+            var gen =
+                from mode in modeGen
+                from triggerCount in Gen.Choose(1, 20)
+                select (mode, triggerCount);
+
+            return Prop.ForAll(
+                gen.ToArbitrary(),
+                tuple =>
+                {
+                    var (mode, triggerCount) = tuple;
+
+                    // Run the entire test on a single STA thread with SynchronizationContext
+                    return RunOnStaThread(() =>
+                    {
+                        var mockViewport = new Mock<IMainViewportService>();
+                        mockViewport.Setup(s => s.CurrentDisplayImage).Returns((ImageSource)null);
+                        mockViewport.Setup(s => s.CurrentDisplayInfo).Returns("等待探测器图像...");
+                        mockViewport.Setup(s => s.IsRealtimeDisplayEnabled).Returns(true);
+                        mockViewport.Setup(s => s.IsCncRunning).Returns(false);
+
+                        var mockAppState = new Mock<IAppStateService>();
+                        mockAppState.SetupAdd(s => s.DetectorStateChanged += It.IsAny<EventHandler<StateChangedEventArgs<DetectorState>>>());
+
+                        var mockLogger = new Mock<ILoggerService>();
+                        mockLogger.Setup(l => l.ForModule<ViewportPanelViewModel>()).Returns(mockLogger.Object);
+
+                        var eventAggregator = new EventAggregator();
+
+                        var vm = new ViewportPanelViewModel(
+                            mockViewport.Object,
+                            eventAggregator,
+                            mockAppState.Object,
+                            mockLogger.Object);
+
+                        // Directly set the measurement mode on the ViewModel.
+                        // This bypasses the UIThread event dispatch issue and directly
+                        // sets the backing field that controls ImageInfo protection.
+                        vm.CurrentMeasurementMode = mode;
+
+                        // Set ImageInfo to the measurement hint text (as OnMeasurementToolActivated would)
+                        vm.ImageInfo = vm.MeasurementModeText;
+                        string measurementInfo = vm.ImageInfo;
+
+                        // Verify measurement mode is active
+                        if (vm.CurrentMeasurementMode == MeasurementToolMode.None)
+                            return false;
+
+                        // Trigger StateChanged multiple times.
+                        // The handler calls BeginInvoke — we pump the dispatcher to process callbacks.
+                        for (int i = 0; i < triggerCount; i++)
+                        {
+                            mockViewport.Raise(s => s.StateChanged += null, EventArgs.Empty);
+                            // Pump the dispatcher to process BeginInvoke callbacks
+                            Dispatcher.CurrentDispatcher.Invoke(() => { }, DispatcherPriority.Background);
+                        }
+
+                        // ImageInfo must still be the measurement hint text, not the service info.
+                        // This holds because UpdateFromState is called with updateInfo: false
+                        // when CurrentMeasurementMode != None.
+                        return vm.ImageInfo == measurementInfo;
+                    });
+                });
+        }
+    }
+}

XplorePlane/Events/DetectorDisconnectedEvent.cs

@@ -0,0 +1,12 @@
+using Prism.Events;
+
+namespace XplorePlane.Events
+{
+    /// <summary>
+    /// 探测器断连事件。
+    /// 当探测器连接状态从已连接变为断开时，由 AppStateService 发布。
+    /// </summary>
+    public sealed class DetectorDisconnectedEvent : PubSubEvent
+    {
+    }
+}

XplorePlane/Services/AppState/AppStateService.cs

@@ -14,6 +14,7 @@ using XP.Hardware.MotionControl.Abstractions.Enums;
 using XP.Hardware.MotionControl.Abstractions.Events;
 using XP.Hardware.MotionControl.Services;
 using XP.Hardware.RaySource.Services;
+using XplorePlane.Events;
 using XplorePlane.Models;
 
 namespace XplorePlane.Services.AppState
@@ -367,6 +368,9 @@ namespace XplorePlane.Services.AppState
         {
             if (_disposed) return;
 
+            // 在更新状态前记录当前连接状态，用于检测断连转换
+            bool wasConnected = _detectorState?.IsConnected ?? false;
+
             // 从 IDetectorService 读取分辨率等补充信息
             string resolution = string.Empty;
             double frameRate = 0;
@@ -396,6 +400,13 @@ namespace XplorePlane.Services.AppState
                 "探测器状态已同步：{Status} → IsConnected={IsConnected} IsAcquiring={IsAcquiring} | " +
                 "Detector state synced: {Status} → IsConnected={IsConnected} IsAcquiring={IsAcquiring}",
                 status, isConnected, isAcquiring);
+
+            // 检测从已连接变为断开，发布断连事件
+            if (wasConnected && !isConnected)
+            {
+                _eventAggregator.GetEvent<DetectorDisconnectedEvent>().Publish();
+                _logger.Warn("探测器已断连，发布 DetectorDisconnectedEvent | Detector disconnected, publishing DetectorDisconnectedEvent");
+            }
         }
 
         /// <summary>

XplorePlane/Services/Cnc/CncExecutionService.cs

@@ -6,8 +6,10 @@ using System.Threading;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Media.Imaging;
+using Prism.Events;
 using XP.Common.Converters;
 using XP.Common.Logging.Interfaces;
+using XplorePlane.Events;
 using XplorePlane.Models;
 using XplorePlane.Services.AppState;
 using XplorePlane.Services.InspectionResults;
@@ -27,6 +29,10 @@ namespace XplorePlane.Services.Cnc
         private readonly IAppStateService _appStateService;
         private readonly IPipelineExecutionService _pipelineExecutionService;
         private readonly IImageProcessingService _imageProcessingService;
+        private readonly IEventAggregator _eventAggregator;
+
+        // Task 4.2: volatile field so reads/writes are not reordered across threads
+        private volatile CancellationTokenSource _executionCts;
 
         public CncExecutionService(
             IInspectionResultStore store,
@@ -34,7 +40,8 @@ namespace XplorePlane.Services.Cnc
             IMainViewportService mainViewportService,
             IAppStateService appStateService,
             IPipelineExecutionService pipelineExecutionService,
-            IImageProcessingService imageProcessingService)
+            IImageProcessingService imageProcessingService,
+            IEventAggregator eventAggregator)
         {
             _store = store ?? throw new ArgumentNullException(nameof(store));
             _logger = logger ?? throw new ArgumentNullException(nameof(logger));
@@ -42,12 +49,36 @@ namespace XplorePlane.Services.Cnc
             _appStateService = appStateService ?? throw new ArgumentNullException(nameof(appStateService));
             _pipelineExecutionService = pipelineExecutionService;
             _imageProcessingService = imageProcessingService;
+            _eventAggregator = eventAggregator ?? throw new ArgumentNullException(nameof(eventAggregator));
+
+            // Task 4.3: subscribe to DetectorDisconnectedEvent on a background thread
+            _eventAggregator.GetEvent<DetectorDisconnectedEvent>()
+                .Subscribe(OnDetectorDisconnected, ThreadOption.BackgroundThread);
+        }
+
+        // Task 4.3: callback – cancel the running execution when the detector disconnects
+        private void OnDetectorDisconnected()
+        {
+            var cts = _executionCts;
+            if (cts == null) return;
+            try
+            {
+                cts.Cancel();
+                _logger.ForModule<CncExecutionService>().Warn("探测器断连，已取消当前 CNC 执行");
+            }
+            catch (ObjectDisposedException) { }
         }
 
         public async Task ExecuteAsync(CncProgram program, IProgress<CncNodeExecutionProgress> progress, CancellationToken cancellationToken)
+        {
+            // Task 4.4: create a linked CTS so DetectorDisconnectedEvent can cancel independently
+            using var linkedCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
+            _executionCts = linkedCts;
+            _mainViewportService?.SetCncRunning(true);
+            try
             {
             // Pre-cancellation check - do NOT call BeginRunAsync if already cancelled
-            if (cancellationToken.IsCancellationRequested)
+            if (linkedCts.Token.IsCancellationRequested)
                 return;
 
             int inspectionNodeCount = program.Nodes.OfType<InspectionModuleNode>().Count();
@@ -91,7 +122,7 @@ namespace XplorePlane.Services.Cnc
 
             foreach (var node in program.Nodes.OrderBy(n => n.Index))
             {
-                if (cancellationToken.IsCancellationRequested)
+                if (linkedCts.Token.IsCancellationRequested)
                 {
                     cancelled = true;
                     break;
@@ -165,7 +196,7 @@ namespace XplorePlane.Services.Cnc
                         case WaitDelayNode waitNode:
                             try
                             {
-                                await ExecuteWaitDelayWithProgressAsync(waitNode, progress, cancellationToken);
+                                await ExecuteWaitDelayWithProgressAsync(waitNode, progress, linkedCts.Token);
                             }
                             catch (OperationCanceledException)
                             {
@@ -176,14 +207,14 @@ namespace XplorePlane.Services.Cnc
                         case PauseDialogNode pauseNode:
                             await Application.Current.Dispatcher.InvokeAsync(() =>
                                 MessageBox.Show(pauseNode.DialogMessage, pauseNode.DialogTitle));
-                            if (cancellationToken.IsCancellationRequested)
+                            if (linkedCts.Token.IsCancellationRequested)
                                 cancelled = true;
                             break;
 
                         case InspectionModuleNode inspectionNode:
                             try
                             {
-                                var img = await ExecuteInspectionNodeAsync(runId, inspectionNode, sourceImage, cancellationToken);
+                                var img = await ExecuteInspectionNodeAsync(runId, inspectionNode, sourceImage, linkedCts.Token);
                                 if (img != null) lastResultImage = img;
                             }
                             catch (Exception ex)
@@ -208,7 +239,7 @@ namespace XplorePlane.Services.Cnc
                 {
                     _logger.ForModule<CncExecutionService>().Error(ex,
                         "Unexpected error executing node '{0}' (Id={1})", node.Name, node.Id);
-                    if (cancellationToken.IsCancellationRequested)
+                    if (linkedCts.Token.IsCancellationRequested)
                         cancelled = true;
                     else
                         nodeSucceeded = false;
@@ -242,6 +273,12 @@ namespace XplorePlane.Services.Cnc
                 _logger.ForModule<CncExecutionService>().Error(ex,
                     "Failed to complete inspection run '{0}'", runId);
             }
+            } // end try
+            finally
+            {
+                _executionCts = null;
+                _mainViewportService?.SetCncRunning(false);
+            }
         }
 
         private BitmapSource TryGetSourceImage()
@@ -255,7 +292,7 @@ namespace XplorePlane.Services.Cnc
             if (detectorFrame?.ImageData == null || detectorFrame.Width <= 0 || detectorFrame.Height <= 0)
                 return null;
 
-            var bitmap = ImageConverter.ConvertGray16ToBitmapSource(
+            var bitmap = XP.Common.Converters.ImageConverter.ConvertGray16ToBitmapSource(
                 detectorFrame.ImageData,
                 (int)detectorFrame.Width,
                 (int)detectorFrame.Height);

XplorePlane/Services/MainViewport/DetectorFramePipelineService.cs

@@ -29,14 +29,32 @@ namespace XplorePlane.Services.MainViewport
             IEventAggregator eventAggregator,
             IMainViewportService mainViewportService,
             ILoggerService logger)
+            : this(eventAggregator, mainViewportService, logger,
+                   ReadInt("DetectorPipeline:AcquireQueueCapacity", 16, 1),
+                   ReadInt("DetectorPipeline:ProcessQueueCapacity", 8, 1),
+                   ReadInt("DetectorPipeline:ProcessEveryNFrames", 1, 1))
+        {
+        }
+
+        /// <summary>
+        /// Internal constructor for testing: accepts capacity and sampling values directly,
+        /// bypassing App.config reads.
+        /// </summary>
+        internal DetectorFramePipelineService(
+            IEventAggregator eventAggregator,
+            IMainViewportService mainViewportService,
+            ILoggerService logger,
+            int acquireQueueCapacity,
+            int processQueueCapacity,
+            int processEveryNFrames)
         {
             ArgumentNullException.ThrowIfNull(eventAggregator);
             _mainViewportService = mainViewportService ?? throw new ArgumentNullException(nameof(mainViewportService));
             _logger = logger?.ForModule<DetectorFramePipelineService>() ?? throw new ArgumentNullException(nameof(logger));
 
-            AcquireQueueCapacity = ReadInt("DetectorPipeline:AcquireQueueCapacity", 16, 1);
+            AcquireQueueCapacity = Math.Max(1, acquireQueueCapacity);
-            ProcessQueueCapacity = ReadInt("DetectorPipeline:ProcessQueueCapacity", 8, 1);
+            ProcessQueueCapacity = Math.Max(1, processQueueCapacity);
-            ProcessEveryNFrames = ReadInt("DetectorPipeline:ProcessEveryNFrames", 1, 1);
+            ProcessEveryNFrames = Math.Max(1, processEveryNFrames);
 
             eventAggregator.GetEvent<ImageCapturedEvent>()
                 .Subscribe(OnImageCaptured, ThreadOption.BackgroundThread);

XplorePlane/Services/MainViewport/IMainViewportService.cs

@@ -7,6 +7,7 @@ namespace XplorePlane.Services.MainViewport
     {
         MainViewportSourceMode CurrentSourceMode { get; }
         bool IsRealtimeDisplayEnabled { get; }
+        bool IsCncRunning { get; }
         ImageSource CurrentDisplayImage { get; }
         string CurrentDisplayInfo { get; }
         ImageSource LatestDetectorImage { get; }
@@ -21,5 +22,11 @@ namespace XplorePlane.Services.MainViewport
         void UpdateDetectorFrame(DetectorFrame frame);
 
         void SetManualImage(ImageSource image, string filePath);
+
+        /// <summary>
+        /// 通知 MainViewportService 当前 CNC 运行状态。
+        /// CNC 开始运行时传入 true，结束时传入 false。
+        /// </summary>
+        void SetCncRunning(bool isRunning);
     }
 }

XplorePlane/Services/MainViewport/MainViewportService.cs

@@ -13,6 +13,7 @@ namespace XplorePlane.Services.MainViewport
 
         private MainViewportSourceMode _currentSourceMode = MainViewportSourceMode.LiveDetector;
         private bool _isRealtimeDisplayEnabled;
+        private bool _isCncRunning;
         private ImageSource _currentDisplayImage;
         private string _currentDisplayInfo = "等待探测器图像...";
         private ImageSource _latestDetectorImage;
@@ -48,6 +49,17 @@ namespace XplorePlane.Services.MainViewport
             }
         }
 
+        public bool IsCncRunning
+        {
+            get
+            {
+                lock (_syncRoot)
+                {
+                    return _isCncRunning;
+                }
+            }
+        }
+
         public ImageSource CurrentDisplayImage
         {
             get
@@ -99,11 +111,21 @@ namespace XplorePlane.Services.MainViewport
             bool changed;
             lock (_syncRoot)
             {
-                changed = _isRealtimeDisplayEnabled != isEnabled;
+                if (!isEnabled && _isCncRunning)
+                {
+                    _logger.Warn("CNC 正在运行，忽略 SetRealtimeDisplayEnabled(false) 调用");
+                    return;
+                }
+
+                changed = _isRealtimeDisplayEnabled != isEnabled
+                       || (isEnabled && _currentSourceMode == MainViewportSourceMode.ManualImage);
+
                 _isRealtimeDisplayEnabled = isEnabled;
 
-                if (_currentSourceMode == MainViewportSourceMode.LiveDetector && isEnabled)
+                if (isEnabled)
                 {
+                    // 开启实时：无论当前是 ManualImage 还是 LiveDetector，都切回实时帧显示
+                    _currentSourceMode = MainViewportSourceMode.LiveDetector;
                     ApplyLiveDetectorDisplay_NoLock();
                 }
             }
@@ -173,6 +195,12 @@ namespace XplorePlane.Services.MainViewport
 
             lock (_syncRoot)
             {
+                if (_isCncRunning)
+                {
+                    _logger.Warn("CNC 正在运行，忽略 SetManualImage 调用");
+                    return;
+                }
+
                 _latestManualImage = image;
                 _latestManualInfo = $"手动加载图像  {fileName}";
                 _currentSourceMode = MainViewportSourceMode.ManualImage;
@@ -184,6 +212,23 @@ namespace XplorePlane.Services.MainViewport
             RaiseStateChanged();
         }
 
+        public void SetCncRunning(bool isRunning)
+        {
+            bool modeChanged = false;
+            lock (_syncRoot)
+            {
+                _isCncRunning = isRunning;
+                if (isRunning && _currentSourceMode == MainViewportSourceMode.ManualImage)
+                {
+                    _currentSourceMode = MainViewportSourceMode.LiveDetector;
+                    ApplyLiveDetectorDisplay_NoLock();
+                    modeChanged = true;
+                }
+            }
+            _logger.Info("CNC 运行状态已更新：{IsRunning}", isRunning);
+            if (modeChanged) RaiseStateChanged();
+        }
+
         private void ApplyLiveDetectorDisplay_NoLock()
         {
             _currentDisplayImage = _latestDetectorImage;

XplorePlane/ViewModels/Main/ViewportPanelViewModel.cs

@@ -6,6 +6,8 @@ using System.Windows;
 using System.Windows.Media;
 using XP.Common.Logging.Interfaces;
 using XplorePlane.Events;
+using XplorePlane.Models;
+using XplorePlane.Services.AppState;
 using XplorePlane.Services.MainViewport;
 
 namespace XplorePlane.ViewModels
@@ -18,6 +20,7 @@ namespace XplorePlane.ViewModels
         private readonly ILoggerService _logger;
         private readonly IMainViewportService _mainViewportService;
         private readonly IEventAggregator _eventAggregator;
+        private readonly IAppStateService _appStateService;
 
         private ImageSource _imageSource;
         private string _imageInfo = "等待探测器图像...";
@@ -26,21 +29,42 @@ namespace XplorePlane.ViewModels
         private Point? _measurePoint2;
         private string _measurementResult;
 
+        // Task 5.2: IsRealtimeEnabled backing field
+        private bool _isRealtimeEnabled;
+
+        // Task 5.3: IsDetectorConnected backing field
+        private bool _isDetectorConnected = true;
+
+        // Task 5.4: IsCncRunning backing field
+        private bool _isCncRunning;
+
         public ViewportPanelViewModel(
             IMainViewportService mainViewportService,
             IEventAggregator eventAggregator,
+            IAppStateService appStateService,
             ILoggerService logger)
         {
             _mainViewportService = mainViewportService ?? throw new ArgumentNullException(nameof(mainViewportService));
             _eventAggregator = eventAggregator ?? throw new ArgumentNullException(nameof(eventAggregator));
+            _appStateService = appStateService ?? throw new ArgumentNullException(nameof(appStateService));
             _logger = logger?.ForModule<ViewportPanelViewModel>() ?? throw new ArgumentNullException(nameof(logger));
 
             CancelMeasurementCommand = new DelegateCommand(ExecuteCancelMeasurement);
 
+            // Task 5.5: ToggleRealtimeCommand
+            ToggleRealtimeCommand = new DelegateCommand(() => IsRealtimeEnabled = !IsRealtimeEnabled);
+
             _mainViewportService.StateChanged += OnMainViewportStateChanged;
             _eventAggregator.GetEvent<MeasurementToolEvent>()
                 .Subscribe(OnMeasurementToolActivated, ThreadOption.UIThread);
 
+            // Task 5.6: Subscribe to DetectorStateChanged
+            _appStateService.DetectorStateChanged += OnDetectorStateChanged;
+
+            // Task 5.7: Subscribe to DetectorDisconnectedEvent on UI thread
+            _eventAggregator.GetEvent<DetectorDisconnectedEvent>()
+                .Subscribe(OnDetectorDisconnectedForUI, ThreadOption.UIThread);
+
             UpdateFromState(updateInfo: true);
         }
 
@@ -56,6 +80,31 @@ namespace XplorePlane.ViewModels
             set => SetProperty(ref _imageInfo, value);
         }
 
+        // Task 5.2: IsRealtimeEnabled property (two-way binding)
+        public bool IsRealtimeEnabled
+        {
+            get => _isRealtimeEnabled;
+            set
+            {
+                if (SetProperty(ref _isRealtimeEnabled, value))
+                    _mainViewportService.SetRealtimeDisplayEnabled(value);
+            }
+        }
+
+        // Task 5.3: IsDetectorConnected property (read-only, private setter)
+        public bool IsDetectorConnected
+        {
+            get => _isDetectorConnected;
+            private set
+            {
+                if (SetProperty(ref _isDetectorConnected, value))
+                    RaisePropertyChanged(nameof(IsAnimatedSwitchEnabled));
+            }
+        }
+
+        // Task 5.4: IsAnimatedSwitchEnabled computed property
+        public bool IsAnimatedSwitchEnabled => _isDetectorConnected && !_isCncRunning;
+
         public MeasurementToolMode CurrentMeasurementMode
         {
             get => _currentMeasurementMode;
@@ -100,6 +149,9 @@ namespace XplorePlane.ViewModels
 
         public DelegateCommand CancelMeasurementCommand { get; }
 
+        // Task 5.5: ToggleRealtimeCommand
+        public DelegateCommand ToggleRealtimeCommand { get; }
+
         public void ResetMeasurementState()
         {
             MeasurePoint1 = null;
@@ -151,10 +203,40 @@ namespace XplorePlane.ViewModels
         {
             ImageSource = _mainViewportService.CurrentDisplayImage;
 
+            // Task 5.8: Sync IsRealtimeEnabled from service
+            _isRealtimeEnabled = _mainViewportService.IsRealtimeDisplayEnabled;
+            RaisePropertyChanged(nameof(IsRealtimeEnabled));
+
+            // Task 5.8: Sync _isCncRunning from service and raise IsAnimatedSwitchEnabled
+            _isCncRunning = _mainViewportService.IsCncRunning;
+            RaisePropertyChanged(nameof(IsAnimatedSwitchEnabled));
+
             if (updateInfo)
             {
                 ImageInfo = _mainViewportService.CurrentDisplayInfo;
             }
         }
+
+        // Task 5.6: Handle DetectorStateChanged on background thread, dispatch to UI
+        private void OnDetectorStateChanged(object sender, StateChangedEventArgs<DetectorState> e)
+        {
+            Application.Current?.Dispatcher?.BeginInvoke(new Action(() =>
+            {
+                IsDetectorConnected = e.NewValue.IsConnected;
+            }));
+        }
+
+        // Task 5.7: Handle DetectorDisconnectedEvent on UI thread
+        private void OnDetectorDisconnectedForUI()
+        {
+            if (_isCncRunning)
+            {
+                MessageBox.Show(
+                    "探测器已断连，CNC 已自动停止。请检查探测器连接后再继续操作。",
+                    "探测器断连警告",
+                    MessageBoxButton.OK,
+                    MessageBoxImage.Warning);
+            }
+        }
     }
 }