diff --git a/Rs.DeweyTester/Flow/SubFlow/ProductLocationFlow.cs b/Rs.DeweyTester/Flow/SubFlow/ProductLocationFlow.cs
index 9815ee2..9a26fd3 100644
--- a/Rs.DeweyTester/Flow/SubFlow/ProductLocationFlow.cs
+++ b/Rs.DeweyTester/Flow/SubFlow/ProductLocationFlow.cs
@@ -44,6 +44,7 @@ namespace Rs.MotionPlat.Flow.SubFlow
             }
         }
 
+        int reTakePicNum = 0;
         AlarmEntity alarmEntity = new AlarmEntity();
         public void Grab(ETrayType trayType, int slotIndex)
         {
@@ -158,18 +159,53 @@ namespace Rs.MotionPlat.Flow.SubFlow
                         }
                         break;
                     case EProductLocationFlowStep.拍照结果处理:
-                        string vmsg  = VisionHelper.loadTakeProductVision.OneGrabSixteen(10000);
-                        if(!string.IsNullOrEmpty(vmsg)&& vmsg.TrimEnd(new char[] { '#', ',' }).Split('#').Length==16)
+                        if (GlobalVar.RunSpace)
                         {
-                            OneGrabSixteenManager.Instance.ParseResult(vmsg, slotIndex);
+                            reTakePicNum = 0;
                             finished = true;
                         }
                         else
                         {
-                            alarmEntity = AlarmCollection.Get(AlarmConstID.一拍十六拍照失败报警);
-                            Msgbox.ShowDialog(alarmEntity, EButtonType.Retry, true);
-                            //Msgbox.ShowTipDialog(EButtonType.Retry, "一拍十六拍照失败，请处理后点击重试","grab fail",true);
-                            flowStep = EProductLocationFlowStep.到料仓拍照起始位;
+                            string vmsg = VisionHelper.loadTakeProductVision.OneGrabSixteen(10000);
+                            string[] msgs = vmsg.Split(new string[] { "#," }, StringSplitOptions.RemoveEmptyEntries);
+
+                            //if (!string.IsNullOrEmpty(vmsg)&& vmsg.TrimEnd(new char[] { '#', ',' }).Split('#').Length==16)
+                            if (!string.IsNullOrEmpty(vmsg) && msgs.Length == 16)
+                            {
+                                List<string> snList = new List<string>();
+                                foreach (string msg in msgs)
+                                {
+                                    string[] items = msg.Split(new char[] { ',' });
+                                    if (items[1] == "0")
+                                    {
+                                        snList.Add(items[2]);
+                                    }
+                                }
+                                if (snList.GroupBy(a => a).Where(k => k.Count() >= 2).Count() == 0)
+                                {
+                                    reTakePicNum = 0;
+                                    OneGrabSixteenManager.Instance.ParseResult(vmsg, slotIndex);
+                                    finished = true;
+                                }
+                                else
+                                {
+                                    MessageQueue.Instance.Warn("Duplicate barcode");
+                                    reTakePicNum++;
+                                    if (reTakePicNum > 4)
+                                    {
+                                        Msgbox.ShowTipDialog(EButtonType.Retry, "Duplicate barcode alarm", "alarm", true);
+                                        reTakePicNum = 0;
+                                    }
+                                    flowStep = EProductLocationFlowStep.到料仓拍照起始位;
+                                }
+                            }
+                            else
+                            {
+                                alarmEntity = AlarmCollection.Get(AlarmConstID.一拍十六拍照失败报警);
+                                Msgbox.ShowDialog(alarmEntity, EButtonType.Retry, true);
+                                //Msgbox.ShowTipDialog(EButtonType.Retry, "一拍十六拍照失败，请处理后点击重试","grab fail",true);
+                                flowStep = EProductLocationFlowStep.到料仓拍照起始位;
+                            }
                         }
                         break;
                 }