diff --git a/Rfid/Rfid/RfidReadWriteTool.cs b/Rfid/Rfid/RfidReadWriteTool.cs
index b72e67c..f0505b2 100644
--- a/Rfid/Rfid/RfidReadWriteTool.cs
+++ b/Rfid/Rfid/RfidReadWriteTool.cs
@@ -200,7 +200,7 @@ public class RfidReadWriteTool
 
     #endregion 结构体
 
-    public RfidReadModel RfidReadModel;
+    public RfidReadModel? RfidReadModel;
 
     /// <summary>
     /// RFID读写器连接
@@ -254,27 +254,29 @@ public class RfidReadWriteTool
 
                 strTemps = strResult.Split(';');
 
-                if (strTemps.Length == 4)
+                if (strTemps.Length >= 2)
                 {
-                    if (strTemps[3] != "")
+                    if (strTemps[1] != "")
                     {
-                        byte[] bytesVelNo = ToByteByHexStr(strTemps[3]);
+                        byte[] bytesVelNo = ToByteByHexStr(strTemps[1]);
                         Encoding gbEcoding = Encoding.GetEncoding("gb2312");
                         strVelNo = gbEcoding.GetString(bytesVelNo);
                     }
                 }
             }
 
-            strResult = "VIN码：" + strTemps[0] + ";车型号：" + strTemps[1] + ";车辆MAC：" + strTemps[2] + ";车牌号：" + strVelNo;
-            SetRecvMsgEvent(strResult);
-
-            RfidReadModel = new RfidReadModel()
+            if (strTemps.Length > 0)
             {
-                Result = 1,
-                VelVin = strTemps[0],
-                VelMac = strTemps[2],
-                VelNo = strTemps[3],
-            };
+                strResult = "VIN码：" + strTemps[0] + ";车牌号：" + strVelNo;
+                SetRecvMsgEvent(strResult);
+
+                RfidReadModel = new RfidReadModel()
+                {
+                    Result = 1,
+                    VelVin = strTemps[0],
+                    VelNo = strVelNo,
+                };
+            }
         }
         catch (Exception ex)
         {
@@ -383,6 +385,7 @@ public class RfidReadWriteTool
     {
         try
         {
+            RfidReadModel = null;
             if (_rfid_reader != null)
             {
                 _rfid_reader.Inventry_stop();