diff --git a/source/CaptureThread/MainDataGrabber.cpp b/source/CaptureThread/MainDataGrabber.cpp
index 92ac2cd..8b3f7a9 100644
--- a/source/CaptureThread/MainDataGrabber.cpp
+++ b/source/CaptureThread/MainDataGrabber.cpp
@@ -252,6 +252,7 @@ int CMainDataGrabber::SetupMsgPipelines()
 
 	connect(this, &CMainDataGrabber::SignalGrabOnceFinished, this, &CMainDataGrabber::GrabOnceFinished);
 	connect(m_psScheduler, &Scheduler::SignalGrabOnce, this, &CMainDataGrabber::OnTimeCounter);
+	connect(m_psScheduler, &Scheduler::SignalZeroHoldCurrent, this, &CMainDataGrabber::OnZeroHoldCurrent);
 	connect(this, &CMainDataGrabber::SignalStartGrab, this, &CMainDataGrabber::StartGrabTimer);
 	connect(this, &CMainDataGrabber::SignalGrabOnceFinished_Signal, this, &CMainDataGrabber::GrabOnceFinished_Signal);
 	connect(this, &CMainDataGrabber::SignalGrabOnceFinished_Dark, this, &CMainDataGrabber::GrabOnceFinished_Dark);
@@ -443,6 +444,15 @@ int CMainDataGrabber::GrabOnceFinished()
 		 m_pControlThread[i]->ClearBuffer();
 	 }
 
+
+	 ////hold current
+	 bool bRes = m_ctrlLS.SetHoldCurrent(0.4f);
+	 if (!bRes)
+	 {
+		qDebug() << "SetHoldCurrent 0.4 Failed";
+	 }
+	 Delay_MSec(1000);
+	 ////
 	 for (int i=0;i< m_struAcqPosSetting.iTotalPosition-1;i++)
 	 {
 		 ResetThreadStatus();
@@ -479,9 +489,15 @@ int CMainDataGrabber::GrabOnceFinished()
 		 {
 			 Delay_MSec(1000);
 		 }
-
 	 }
-
+	 ////hold current
+	 bRes = m_ctrlLS.SetHoldCurrent(0);
+	 if (!bRes)
+	 {
+		qDebug() << "SetHoldCurrent 0 Failed";
+	 }
+     Delay_MSec(1000);
+	 ////
 	 std::vector<std::vector<DataFrame>> vecData;
 	
 	 for (ZZ_U8 i = 0; i < m_struDeviceContext.ucDeviceNumber; i++)
@@ -544,3 +560,14 @@ int CMainDataGrabber::GrabOnceFinished()
  	return 0;
  }
 
+ int CMainDataGrabber::OnZeroHoldCurrent()
+ {
+	bool bRes = m_ctrlLS.SetHoldCurrent(0);
+	if (!bRes)
+	{
+		qDebug() << "OnZeroHoldCurrent Failed";
+	}
+
+	 return 0;
+ }
+
diff --git a/source/CaptureThread/MainDataGrabber.h b/source/CaptureThread/MainDataGrabber.h
index a440052..0fd2df4 100644
--- a/source/CaptureThread/MainDataGrabber.h
+++ b/source/CaptureThread/MainDataGrabber.h
@@ -75,6 +75,7 @@ public slots:
 	int InitLS();
 	int StartGrabTimer();
 	int OnTimeCounter();
+	int OnZeroHoldCurrent();
 
 	int HandleThreadEvent_Signal(int iThreadID, int iFlagStatus);
 	int HandleThreadEvent_Dark(int iThreadID, int iFlagStatus);
diff --git a/source/CaptureThread/Scheduler.cpp b/source/CaptureThread/Scheduler.cpp
index b455a8d..986ad29 100644
--- a/source/CaptureThread/Scheduler.cpp
+++ b/source/CaptureThread/Scheduler.cpp
@@ -79,7 +79,8 @@ int Scheduler::OnTimeCounter()
 		{
 			m_iFlagIsOnRestart = 1;
 		}
-		system("gpio write 1 0");//�豸�ϵ�
+		emit SignalZeroHoldCurrent();
+		system("gpio write 1 0");//É豸¶Ïµç
 		qDebug() << "gpio write 1 0......"<<endl;
 		qDebug() << "Non working time. Idling......";
 		return 0;
diff --git a/source/CaptureThread/Scheduler.h b/source/CaptureThread/Scheduler.h
index 213240a..ae454b5 100644
--- a/source/CaptureThread/Scheduler.h
+++ b/source/CaptureThread/Scheduler.h
@@ -22,6 +22,7 @@ public:
 public slots:
 	int OnTimeCounter();
 signals:
+	void SignalZeroHoldCurrent();
 	void SignalGrabOnce();
 	void SignalSelfStart();
 };
\ No newline at end of file