diff --git a/Correlator/Util/MethodExtensions.cs b/Correlator/Util/MethodExtensions.cs
index 37a42c0..601d732 100644
--- a/Correlator/Util/MethodExtensions.cs
+++ b/Correlator/Util/MethodExtensions.cs
@@ -368,14 +368,27 @@
         public static void SaveSensorResponse(this List<string> response, string devCode)
         {
             var rootDir = Constant.GetLocateDataDir(short.MaxValue);
+            if (Directory.GetDirectories(rootDir).Length > 0 || Directory.GetFiles(rootDir).Length > 0)
+            {
+                //防止数据混乱，存数据之前先将之前发的数据清空
+                var dir = new DirectoryInfo(rootDir);
+                if (dir.Exists)
+                {
+                    foreach (var fileInfo in dir.GetFiles())
+                    {
+                        fileInfo.Delete();
+                    }
+                }
+            }
+
             string fileName;
             if (devCode == DevCode.Dev1)
             {
-                fileName = rootDir + "\\原始数据." + DateTime.Now.ToString("HHmmss") + ".txt";
+                fileName = rootDir + "\\原始数据." + DevCode.Dev1 + ".txt";
             }
             else
             {
-                fileName = rootDir + "\\原始数据." + DateTime.Now.ToString("HHmmss") + ".txt";
+                fileName = rootDir + "\\原始数据." + DevCode.Dev2 + ".txt";
             }
 
             var builder = new StringBuilder();