diff --git a/VideoProsessing/src/main.cpp b/VideoProsessing/src/main.cpp
index 9670759..e607120 100644
--- a/VideoProsessing/src/main.cpp
+++ b/VideoProsessing/src/main.cpp
@@ -266,10 +266,21 @@ void warnThread()
                     //刚进入报警状态
                     isAlarming = true;
                     setGPIOLevel(alarmLevel);
-                    //保存报警图片
-                    saveAlarmImage(videoDeque.back());
-                    //保存报警视频
-                    saveAlarmVideo(videoDeque);
+                    {
+                        lock_guard<mutex> lk(bufferMutex);
+                        Mat framToSave;
+                        deque<Mat> bufferToSave;
+                        if(!videoDeque.empty())
+                        {
+                            framToSave = videoDeque.back().clone();
+                            bufferToSave = videoDeque;
+                        }
+                        //保存报警图片
+                        saveAlarmImage(framToSave);
+                        //保存报警视频
+                        saveAlarmVideo(bufferToSave);
+                    }
+                    
 
                     cout << "保存成功" << endl;
                 }