1. 重构 DeviceManagementService 类：

- 修改 CreateDeviceWithDetailsAsync 方法，在数据库创建成功后自动添加到内存
      - 修改 UpdateDeviceAsync 方法，在数据库更新成功后自动更新内存
      - 修改 DeleteDeviceByIdAsync 方法，在数据库删除成功后自动从内存移除
      - 修改 ToggleDeviceActiveStateAsync 方法，在数据库切换激活状态后更新内存

   2. 更新 DeviceDataService 类：
      - 移除了在 AddDevice 方法中的独立 AddDeviceToMemory 调用
      - 移除了在 DeleteDevice 方法中的独立 RemoveDeviceFromMemory 调用
      - 为 UpdateDevice 方法添加了注释，说明内存自动更新

   3. 更新 DeviceMonitoringService 类：
      - 在 OnDeviceActiveChanged 方法中使用 Task 运行异步的 UpdateDeviceAsync 调用

   4. 更新接口文档：
      - 在 IDeviceManagementService 接口中更新了内存操作方法的注释，说明通常由其他操作自动调用

DMS.Application/Services/Management/DeviceManagementService.cs

@@ -47,7 +47,15 @@ public class DeviceManagementService : IDeviceManagementService
     /// </summary>
     public async Task<CreateDeviceWithDetailsDto> CreateDeviceWithDetailsAsync(CreateDeviceWithDetailsDto dto)
     {
-        return await _deviceAppService.CreateDeviceWithDetailsAsync(dto);
+        var result = await _deviceAppService.CreateDeviceWithDetailsAsync(dto);
+        
+        // 创建成功后，将设备添加到内存中
+        if (result?.Device != null)
+        {
+            AddDeviceToMemory(result.Device);
+        }
+        
+        return result;
     }
 
     /// <summary>
@@ -55,7 +63,15 @@ public class DeviceManagementService : IDeviceManagementService
     /// </summary>
     public async Task<int> UpdateDeviceAsync(DeviceDto deviceDto)
     {
-        return await _deviceAppService.UpdateDeviceAsync(deviceDto);
+        var result = await _deviceAppService.UpdateDeviceAsync(deviceDto);
+        
+        // 更新成功后，更新内存中的设备
+        if (result > 0 && deviceDto != null)
+        {
+            UpdateDeviceInMemory(deviceDto);
+        }
+        
+        return result;
     }
 
     /// <summary>
@@ -63,7 +79,16 @@ public class DeviceManagementService : IDeviceManagementService
     /// </summary>
     public async Task<bool> DeleteDeviceByIdAsync(int deviceId)
     {
-        return await _deviceAppService.DeleteDeviceByIdAsync(deviceId);
+        var device = await _deviceAppService.GetDeviceByIdAsync(deviceId); // 获取设备信息用于内存删除
+        var result = await _deviceAppService.DeleteDeviceByIdAsync(deviceId);
+        
+        // 删除成功后，从内存中移除设备
+        if (result && device != null)
+        {
+            RemoveDeviceFromMemory(deviceId);
+        }
+        
+        return result;
     }
 
     /// <summary>
@@ -72,6 +97,13 @@ public class DeviceManagementService : IDeviceManagementService
     public async Task ToggleDeviceActiveStateAsync(int id)
     {
         await _deviceAppService.ToggleDeviceActiveStateAsync(id);
+        
+        // 更新内存中的设备状态
+        var device = await _deviceAppService.GetDeviceByIdAsync(id);
+        if (device != null)
+        {
+            UpdateDeviceInMemory(device);
+        }
     }
 
     /// <summary>

DMS.Application/Services/Monitoring/DeviceMonitoringService.cs

@@ -40,7 +40,11 @@ public class DeviceMonitoringService : IDeviceMonitoringService, IDisposable
     {
         if (_appDataStorageService.Devices.TryGetValue(e.DeviceId, out var device))
         {
-            _appDataCenterService.DeviceManagementService.UpdateDeviceAsync(device);
+            // 更新设备激活状态 - 同时更新数据库和内存
+            _ = Task.Run(async () =>
+            {
+                await _appDataCenterService.DeviceManagementService.UpdateDeviceAsync(device);
+            });
         }
     }