diff --git a/controllers/Carpark.php b/controllers/Carpark.php
index 798b3d0..510eef5 100644
--- a/controllers/Carpark.php
+++ b/controllers/Carpark.php
@@ -240,7 +240,7 @@ class Carpark extends CI_Controller
 			exit;
 		}
 		
-        $data = $this->carpark_model->get_last_unbalanced_cario($lpr, $station_no);
+        $data = $this->sync_data_model->get_last_unbalanced_cario($lpr, $station_no);
         echo json_encode($data, JSON_UNESCAPED_UNICODE);
 	}
 	
diff --git a/models/Sync_data_model.php b/models/Sync_data_model.php
index a53ccfb..3f80b8a 100644
--- a/models/Sync_data_model.php
+++ b/models/Sync_data_model.php
@@ -448,12 +448,12 @@ class Sync_data_model extends CI_Model
 	}
 	
 	// 取得最新未結清 （功能: 行動支付）
-	public function get_last_unbalanced_cario($lpr) 
+	public function get_last_unbalanced_cario($lpr, $station_no) 
 	{                    
 		$sql = "SELECT station_no, cario_no, in_time, pay_time, out_time, out_before_time, member_no
 					FROM cario 
 				WHERE 
-					obj_id = '{$lpr}' AND finished = 0 AND err = 0
+					station_no = '{$station_no}' AND obj_id = '{$lpr}' AND finished = 0 AND err = 0
 				ORDER BY cario_no DESC
 				LIMIT 1
 				";