diff --git a/deviceservice.cpp b/deviceservice.cpp
index 38ec1c7..8a99dcf 100644
--- a/deviceservice.cpp
+++ b/deviceservice.cpp
@@ -9,7 +9,7 @@
 #define WIRING_PIN_KEY 3    //GPIO.3
 #define Click_Overtime 50
 #define Press_Overtime 1500
-#define DblClick_Difftime 2000
+#define DblClick_Difftime 500
 
 DeviceService::DeviceService(QObject *parent) : QObject(parent)
 {
@@ -103,7 +103,7 @@ quint8 DeviceService::keyDetection()
     //判定上次有行为，且上次行为产生时间间隔大于组合行为最长时间间隔，说明行为结束（不在判定组合行为），发送行为信号，并清空key.flag
     if(key.flag != None && lastFlagTime.msecsTo(QTime::currentTime()) >= DblClick_Difftime)
     {
-//        emit keyWorked(key.flag);
+        emit keyWorked(key.flag);
         qDebug() << "keyWorked = " << key.flag;
         key.flag = None;
     }
@@ -156,7 +156,7 @@ quint8 DeviceService::keyDetection()
         lastStateTime = QTime::currentTime();
         if(key.state != KEY_Up)
         {
-//            emit keyDown();//发送至mainwidget，用于记录按下时操作的患者是哪个
+            emit keyDown();//发送至mainwidget，用于记录按下时操作的患者是哪个
             qDebug() << "key.state = " << key.state;
         }
       }
diff --git a/mainwidget.cpp b/mainwidget.cpp
index d833578..500cdef 100644
--- a/mainwidget.cpp
+++ b/mainwidget.cpp
@@ -236,6 +236,7 @@ void MainWidget::onKeyClicked()
 
 void MainWidget::onKeyDown()
 {
+    qDebug() << "emit keyDown()";
     if(m_patientEmergencyInfos.length() > 0){
         keyDownPInfo = m_patientEmergencyInfos[m_patientIndex];
     }
@@ -243,6 +244,7 @@ void MainWidget::onKeyDown()
 
 void MainWidget::onKeyWorked(KeyFlag flag)
 {
+    qDebug() << "emit keyWork()" << flag;
     if(flag == Click){
         m_ledTurnTimer.stop();
         m_deviceService->m_ledStatus = 0;