diff --git a/Rs.SkyLine/Commom/Ops.cs b/Rs.SkyLine/Commom/Ops.cs
index 1b00b30..7d97e8d 100644
--- a/Rs.SkyLine/Commom/Ops.cs
+++ b/Rs.SkyLine/Commom/Ops.cs
@@ -152,39 +152,47 @@ namespace Rs.MotionPlat.Commom
 
         public static void Start()
         {
-            bool run = true;
-            if(GlobalVar.EnableVirtuleBarCode)
+            //先检测门禁
+            if(IoManager.Instance.ReadIn("后安全门禁")==0)
             {
-                DialogResult dr = Msg.ShowQuestion("device run use virtual bar code?");
-                if(dr== DialogResult.Cancel)
-                {
-                    run = false;
-                }
+                MessageQueue.Instance.Warn("door opened,please close door!!!");
             }
-            if(run)
+            else
             {
-                Task.Run(() => {
-                    if (MachineManage.Instance.MachineStatus == EMachineStatus.Homed || MachineManage.Instance.MachineStatus == EMachineStatus.Stop)
+                bool run = true;
+                if (GlobalVar.EnableVirtuleBarCode)
+                {
+                    DialogResult dr = Msg.ShowQuestion("device run use virtual barcode?");
+                    if (dr == DialogResult.Cancel)
                     {
-                        MachineManage.Instance.SetLocalMachineStatus(EMachineStatus.Working);
-                        On("启动灯");
-                        Off("停止灯");
-                        LightManger.Instance.SetStatus(ELightStatus.Green);
-                        if (!WorkEnvironment.Instance.IsRunning())
-                        {
-                            WorkEnvironment.Instance.Ready();
-                        }
-                        WorkEnvironment.Instance.EnvReadyOkEvent.WaitOne();
-                        DischargeFlow.Instance.Start();
-                        TurnoverFlow.Instance.Start();
-                        MachineManage.Instance.SetCenterMachineStatus(ERunStatus.Started);
-                        //if (DischargeFlow.Instance.GetCurStep() == "等待任务" && TurnoverFlow.Instance.GetStep() == "等待任务")
-                        if (MachineManage.Instance.GetLoadUnloadStatus() != ERunState.Busying)
+                        run = false;
+                    }
+                }
+                if (run)
+                {
+                    Task.Run(() => {
+                        if (MachineManage.Instance.MachineStatus == EMachineStatus.Homed || MachineManage.Instance.MachineStatus == EMachineStatus.Stop)
                         {
-                            MachineManage.Instance.SetLoadUnloadStatus(ERunState.Waiting);
+                            MachineManage.Instance.SetLocalMachineStatus(EMachineStatus.Working);
+                            On("启动灯");
+                            Off("停止灯");
+                            LightManger.Instance.SetStatus(ELightStatus.Green);
+                            if (!WorkEnvironment.Instance.IsRunning())
+                            {
+                                WorkEnvironment.Instance.Ready();
+                            }
+                            WorkEnvironment.Instance.EnvReadyOkEvent.WaitOne();
+                            DischargeFlow.Instance.Start();
+                            TurnoverFlow.Instance.Start();
+                            MachineManage.Instance.SetCenterMachineStatus(ERunStatus.Started);
+                            //if (DischargeFlow.Instance.GetCurStep() == "等待任务" && TurnoverFlow.Instance.GetStep() == "等待任务")
+                            if (MachineManage.Instance.GetLoadUnloadStatus() != ERunState.Busying)
+                            {
+                                MachineManage.Instance.SetLoadUnloadStatus(ERunState.Waiting);
+                            }
                         }
-                    }
-                });
+                    });
+                }
             }
         }