diff --git a/car.cpp b/car.cpp
index 160b983..8b90720 100644
--- a/car.cpp
+++ b/car.cpp
@@ -98,7 +98,8 @@ void Car::setPath(Path *path)
     m_target.point = m_target.point - QPoint(20, 30);
     m_current = m_target;
     m_target.action = Road::none;
-    this->setPos(m_target.point);
+
+    this->setPos(m_target.point - 0.5*QPoint(M_WID, M_LEN));
     this->setRotation(m_target.dir+90);
 }
 
@@ -148,8 +149,8 @@ void Car::followPath()
         break;
     case Road::queueHead:
         Log::i("发送请求车位信号");
-        // emit queueHead(this);
-        emit back(this);
+        emit queueHead(this);
+        // emit back(this);
         break;
     case Road::none:
         break;
diff --git a/parkingLotManager.cpp b/parkingLotManager.cpp
index bfda235..1eb78a2 100644
--- a/parkingLotManager.cpp
+++ b/parkingLotManager.cpp
@@ -60,7 +60,7 @@ ParkingLotManager::ParkingLotManager(QObject* objectParent, QGraphicsScene* scen
 
     QTimer *timer = new QTimer(this);
     connect(timer, &QTimer::timeout, this, &ParkingLotManager::periodWork);
-   //  timer->start(1000);  // 轮询
+    timer->start(1000);  // 轮询
 }
 
 void ParkingLotManager::showParkingLot(uint pos)
@@ -216,7 +216,7 @@ void ParkingLotManager::requestIn(Car* car)
     if (!m_pool.empty()) {
         uint l = m_pool.first().first;
         int n = m_pool.first().second + 1;
-        l = 0;
+        // l = 0;
         m_pool.removeAt(0);
         Log::i(QString("分配第%1层%2号车位，剩余%3个空车位").arg(l).arg(n).arg(m_pool.size()));
         Path* p;