diff --git a/source/application/common/logic/PassFlow.php b/source/application/common/logic/PassFlow.php
index c4cd4de..c341eaa 100644
--- a/source/application/common/logic/PassFlow.php
+++ b/source/application/common/logic/PassFlow.php
@@ -3,7 +3,6 @@
 namespace app\common\logic;
 
 use app\common\dm\Dm;
-use app\common\model\Pass;
 
 class PassFlow
 {
@@ -195,7 +194,7 @@ class PassFlow
         foreach ($data as $groupId => $val) {
             $proportion = $val['allEnter'] > 0 ? round($val['allEnter']/$threshold,2) : 0;
             $val['proportion'] = ($proportion * 100) . "%";
-            $val['congestion'] = Pass::getPassType($proportion);
+            $val['congestion'] = self::getPassType($proportion);
             $val['groupId'] = $groupId;
 
             $getGroup = $dm->find('bt_passenger_monitor_group',' "groupId" = ' . "'{$groupId}'");