diff --git a/controllers/Qcar.php b/controllers/Qcar.php
index 5a7ca6c..78566bb 100644
--- a/controllers/Qcar.php
+++ b/controllers/Qcar.php
@@ -10,8 +10,9 @@ class Qcar extends CI_Controller
 
 	function __construct()
 	{
-
-		header('Location: http://59.120.213.62/qcar2.html');
+		$client_ip = $this->my_ip();
+		
+		header('Location: http://{$client_ip}/qcar2.html');
     	exit;
 		parent::__construct();
         // ----- 程式開發階段log設定 -----
@@ -67,7 +68,23 @@ class Qcar extends CI_Controller
 		// ----- 歐付寶金流 (end) -----
 	}
 
+	// 取得 IP
+	function my_ip()
+	{
+		if (getenv('HTTP_X_FORWARDED_FOR')) 
+		{
+			$ip = getenv('HTTP_X_FORWARDED_FOR');
+		}
+		elseif (getenv('HTTP_X_REAL_IP')) 
+		{
+			$ip = getenv('HTTP_X_REAL_IP');
+		}
+		else {
+			$ip = $_SERVER['REMOTE_ADDR'];
+		}
 
+		return $ip;
+	}
 
     // 發生錯誤時集中在此處理
 	public function error_handler($errno, $errstr, $errfile, $errline, $errcontext)
diff --git a/models/Pks_model.php b/models/Pks_model.php
index 60da8ff..9862157 100644
--- a/models/Pks_model.php
+++ b/models/Pks_model.php
@@ -349,4 +349,13 @@ class Pks_model extends CI_Model
 		$this->db->query($sql);
 	}
 
+	//12171紅樹林特殊計數
+	public function carno_updata_12171()
+	{
+		$sql = "SELECT (B.parked - A.sum_parked) as parked, (B.tot - A.sum_tot) - (B.parked - A.sum_parked) as availables FROM (SELECT SUM(parked) as sum_parked,SUM(tot) as sum_tot FROM pks_groups WHERE group_id != \"M888\" AND group_id !=\"3F\" AND group_id != \"P1\" AND group_id != \"C888\") A, pks_groups B WHERE B.group_id = \"C888\"";
+		$result = $this->db->query($sql)->result_array();
+		$sql = "UPDATE `pks_groups` SET `parked`={$result[0]['parked']},`availables`={$result[0]['availables']} WHERE group_id = \"3F\";";
+		$this->db->query($sql);
+	}
+
 }