diff --git a/app/Models/CollectorModel.php b/app/Models/CollectorModel.php
index d66c29f..ac6fd44 100644
--- a/app/Models/CollectorModel.php
+++ b/app/Models/CollectorModel.php
@@ -26,4 +26,12 @@ class CollectorModel extends CommonModel
     {
         parent::__construct();
     }
+
+    public function getLastEntity($uid): CollectorEntity|null
+    {
+        return $this
+            ->where('trafficinfo_uid', $uid)
+            ->orderBy('created_at', 'DESC')
+            ->first(); // 첫 번째 레코드(=가장 최신)
+    }
 }
diff --git a/app/Services/CollectorService.php b/app/Services/CollectorService.php
index 91230bd..b6f71e6 100644
--- a/app/Services/CollectorService.php
+++ b/app/Services/CollectorService.php
@@ -109,11 +109,7 @@ class CollectorService extends CommonService
             throw new \Exception($message);
         }
         // 이전 데이터를 조회하여 Rate 계산에 사용
-        $lastEntity = $this->model
-            ->where('trafficinfo_uid', $trafficEntity->getPK())
-            ->orderBy('created_at', 'DESC')
-            ->first();
-        dd($lastEntity);
+        $lastEntity = $this->model->getLastEntity($trafficEntity->getPK());
         $inKbitsSec = 0.0;
         $outKbitsSec = 0.0;
         // 이전 데이터가 있어야만 Rate 계산 가능