diff --git a/server/src/Services/HttpVideoStreamService.cs b/server/src/Services/HttpVideoStreamService.cs
index 960e8b3..f6260af 100644
--- a/server/src/Services/HttpVideoStreamService.cs
+++ b/server/src/Services/HttpVideoStreamService.cs
@@ -86,7 +86,7 @@ public class HttpVideoStreamService : BackgroundService
 {
     private static readonly NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();
     private HttpListener? _httpListener;
-    private readonly int _serverPort = 8080;
+    private readonly int _serverPort = 4321;
     private readonly int _frameRate = 30; // 30 FPS
 
     // 动态分辨率配置
@@ -412,9 +412,9 @@ public class HttpVideoStreamService : BackgroundService
             {
                 if (_usbCamera == null)
                 {
-                    _usbCamera = new VideoCapture(0);
+                    _usbCamera = new VideoCapture(1);
                     _usbCamera.Fps = _frameRate;
-                    _usbCamera.FrameWidth = _frameWidth;
+                    _usbCamera.FrameWidth = _frameWidth;    
                     _usbCamera.FrameHeight = _frameHeight;
                     _usbCameraEnable = _usbCamera.IsOpened();
                 }