fix: 阻止重复遥操作节点继续运行

xr_rm_bringup/launch/arm_debug.launch.py

@@ -8,7 +8,7 @@
 from pathlib import Path
 
 from launch import LaunchDescription
-from launch.actions import DeclareLaunchArgument, OpaqueFunction
+from launch.actions import DeclareLaunchArgument, OpaqueFunction, Shutdown
 from launch.substitutions import LaunchConfiguration, PathJoinSubstitution
 from launch_ros.actions import Node
 from launch_ros.substitutions import FindPackageShare
@@ -47,6 +47,9 @@ def _udp_receiver_node() -> Node:
         executable="udp_controller_receiver",
         name="udp_controller_receiver",
         output="screen",
+        on_exit=Shutdown(
+            reason="XR UDP receiver exited; stopping arm_debug launch"
+        ),
         parameters=[{
             "udp_host": LaunchConfiguration("udp_host"),
             "udp_port": LaunchConfiguration("udp_port"),