diff --git a/Healthbeat.py b/Healthbeat.py
index bf0ddb4..443907a 100644
--- a/Healthbeat.py
+++ b/Healthbeat.py
@@ -15,12 +15,15 @@ class Camera:
 
     def healthbeat(self):
         try:
-            cap = cv2.VideoCapture(self.rtsp)
-            ret, _ = cap.read()
-            cap.release()
-
             # 摄像头状态: 1 在线, 2 离线
-            status = 1 if ret == True else 2
+            status = 2
+
+            cap = cv2.VideoCapture(self.rtsp)
+            if cap.isOpened():
+                ret, _ = cap.read()
+                cap.release()
+                if ret == True:
+                    status = 1
 
             if status == 1:
                 logging.info("摄像头ID: %s, 状态: 在线" % (self.id))
@@ -32,7 +35,7 @@ class Camera:
 
                 with conn:
                     with conn.cursor() as cursor:
-                        cursor.execute("update devices set status = %s, updated_at = %s where id = %s", (status, self.id, datetime.datetime.now()))
+                        cursor.execute("update devices set status = %s, updated_at = %s where id = %s", (status, datetime.datetime.now(), self.id))
 
                 conn.close()
         except Exception as e: