diff --git a/drone_controller/base_control.py b/drone_controller/base_control.py
index f7be1ea..bddcf38 100644
--- a/drone_controller/base_control.py
+++ b/drone_controller/base_control.py
@@ -5,7 +5,7 @@ from pymavlink import mavutil
 
 
 class DroneController:
-    def __init__(self, connection_string='/dev/ttyUSB0', baud=115200):
+    def __init__(self, connection_string='udpout:127.0.0.1:14550', baud=115200):
         self.connection_string = connection_string
         self.baud = baud
         self.master = None
diff --git a/infer_camera_modular.py b/infer_camera_modular.py
index 7a3c71a..0b23c26 100644
--- a/infer_camera_modular.py
+++ b/infer_camera_modular.py
@@ -231,7 +231,7 @@ class UAVControlLoop:
     """ 🛸 无人机飞控闭环控制核心 """
 
     def __init__(self, fc_cfg, pid_y_cfg, pid_z_cfg):
-        connection_string = fc_cfg.get("connection_string", "udpout:172.0.0.1:14550")
+        connection_string = fc_cfg.get("connection_string", "udpout:127.0.0.1:14550")
         baud_rate = fc_cfg.get("baud_rate", 57600)
 
         # 初始化控制驱动端