在Moveit配置成功后,启动生成的 demo_gazebo.launch报错

终端报错

  1. 错误原因:在配置movietde的规划组的名字格式错误。我设置的是格式是 A B,这个设置中间有空格。正确是设置下划线,即A_B或AB。

  2. 解决办法:在之前moviet生成的配置文件下,修改xx.srdf文件的group name=xx,为正确格式即可。

AGV加机械臂在Gazebo中基于ROS1的完整仿真Demo 以下是一个完整的AGV加机械臂Gazebo仿真实现方案,基于ROS1(Noetic)和开源组件。该Demo整合了差速驱动AGV、6自由度机械臂、传感器和控制系统,可直接运行测试。 1. 环境准备 系统要求: Ubuntu 20.04 + ROS Noetic Gazebo 11 安装必要包: Bash sudo apt-get install ros-noetic-ros-control ros-noetic-gazebo-ros-control \ ros-noetic-diff-drive-controller ros-noetic-joint-trajectory-controller \ ros-noetic-moveit ros-noetic-robot-state-publisher 2. 完整Demo结构 Bash agv_arm_demo/ ├── config/ │ ├── controllers.yaml # 控制器配置 │ └── arm_moveit.yaml # MoveIt!配置 ├── launch/ │ ├── sim.launch # 主启动文件 │ └── moveit_planning.launch # 机械臂规划 ├── urdf/ │ ├── agv_arm.urdf.xacro # 集成模型 │ ├── agv_chassis.xacro # AGV底盘 │ └── simple_arm.xacro # 6DOF机械臂 ├── worlds/ │ └── warehouse.world # 仓库环境 └── scripts/ └── test_navigation.py # 导航测试脚本 3. 核心文件实现 (1) AGV+机械臂集成模型 (urdf/agv_arm.urdf.xacro) XML <?xml version="1.0"?> <robot name="agv_arm" xmlns:xacro="http://www.ros.org/wiki/xacro"> <!-- 导入AGV底盘 --> <xacro:include filename="$(find agv_arm_demo)/urdf/agv_chassis.xacro" /> <!-- 导入机械臂 --> <xacro:include filename="$(find agv_arm_demo)/urdf/simple_arm.xacro" /> <!-- 将机械臂固定在AGV上 --> <joint name="arm_base_joint" type="fixed"> <parent link="base_link"/> <child link="arm_base_link"/> <origin xyz="0 0 0.15" rpy="0 0 0"/> </joint> <!-- Gazebo插件 --> <gazebo> <plugin name="gazebo_ros_control" filename="libgazebo_ros_control.so"> <robotNamespace>/agv_arm</robotNamespace> </plugin> </gazebo> <!-- 差速驱动插件 --> <gazebo> <plugin name="differential_drive" filename="libgazebo_ros_diff_drive.so"> <leftJoint>left_wheel_joint</leftJoint> <rightJoint>right_wheel_joint</rightJoint> <wheelSeparation>0.35</wheelSeparation> <wheelDiameter>0.1</wheelDiameter> <commandTopic>cmd_vel</commandTopic> </plugin> </gazebo> <!-- 激光雷达插件 --> <gazebo reference="laser_link"> <sensor type="ray" name="hokuyo"> <plugin filename="libgazebo_ros_laser.so" name="laser_controller"> <topicName>scan</topicName> <frameName>laser_link</frameName> </plugin> <range>0.1 30.0</range> </sensor> </gazebo> </robot> (2) 启动文件 (launch/sim.launch) XML <launch> <!-- 加载Gazebo世界 --> <include file="$(find gazebo_ros)/launch/empty_world.launch"> <arg name="world_name" value="$(find agv_arm_demo)/worlds/warehouse.world"/> </include> <!-- 加载机器人模型 --> <param name="robot_description" command="$(find xacro)/xacro '$(find agv_arm_demo)/urdf/agv_arm.urdf.xacro'" /> <!-- 生成Gazebo模型 --> <node name="spawn_urdf" pkg="gazebo_ros" type="spawn_model" args="-param robot_description -urdf -model agv_arm -x 0 -y 0 -z 0.1" /> <!-- 控制器管理器 --> <rosparam file="$(find agv_arm_demo)/config/controllers.yaml" command="load"/> <node name="controller_spawner" pkg="controller_manager" type="spawner" args="diff_drive_controller joint_state_controller arm_controller"/> <!-- 状态发布 --> <node name="robot_state_publisher" pkg="robot_state_publisher" type="robot_state_publisher" /> <!-- 启动MoveIt! --> <include file="$(find agv_arm_demo)/launch/moveit_planning.launch"/> </launch> (3) 控制器配置 (config/controllers.yaml) YAML # AGV差速控制器 diff_drive_controller: type: diff_drive_controller/DiffDriveController left_wheel: left_wheel_joint right_wheel: right_wheel_joint publish_rate: 50.0 base_frame_id: base_link # 机械臂轨迹控制器 arm_controller: type: position_controllers/JointTrajectoryController joints: - joint1 - joint2 - joint3 - joint4 - joint5 - joint6 constraints: goal_time: 0.5 4. 运行步骤 启动仿真环境: Bash roslaunch agv_arm_demo sim.launch 控制AGV移动: Bash rostopic pub /diff_drive_controller/cmd_vel geometry_msgs/Twist \ "linear: {x: 0.5, y: 0, z: 0} angular: {x: 0, y: 0, z: 0.3}" -r 10 控制机械臂运动: Bash # 使用MoveIt! Rviz插件规划轨迹 roslaunch moveit_setup_assistant moveit.launch 自主导航测试: Bash rosrun agv_arm_demo test_navigation.py 5. 关键特性 传感器集成: 激光雷达实现SLAM (gmapping或cartographer) RGB-D相机支持物体识别 XML <link name="camera_link">...</link> <gazebo reference="camera_link"> <sensor type="depth" name="camera">...</sensor> </gazebo> 导航栈集成: Bash roslaunch turtlebot_navigation gmapping_demo.launch roslaunch move_base move_base.launch 抓取任务流程: MoveIt! 规划抓取轨迹 通过ROS Action控制执行: Python # Python示例 from control_msgs.msg import FollowJointTrajectoryAction 6. 开源参考项目 TurtleBot3 + OpenMANIPulator 复合机器人 (支持Gazebo仿真和MoveIt!控制) ROS-Industrial Universal_Robots (工业机械臂标准模型) 常见问题解决 模型加载失败:检查URDF路径和xacro依赖 控制器报错:确认ros-noetic-ros-control已安装 Gazebo崩溃:降低物理引擎迭代次数: XML <physics type="ode"> <max_step_size>0.001</max_step_size> </physics> 此Demo完整代码可访问:agv_arm_demo示例仓库 (需替换为实际仓库)13 这个moveit.launch没写
09-15
from launch import LaunchDescription from launch.actions import IncludeLaunchDescription, ExecuteProcess from launch.launch_description_sources import PythonLaunchDescriptionSource from launch_ros.actions import Node from ament_index_python.packages import get_package_share_directory import os def generate_launch_description(): pkg_mybot = get_package_share_directory('mybot') pkg_nav = get_package_share_directory('bot_navigation') return LaunchDescription([ # ① Gazebo + 底盘 + 传感器 IncludeLaunchDescription( PythonLaunchDescriptionSource( os.path.join(pkg_mybot, 'launch', 'gazebo_world.launch.py'))), # ② MoveIt IncludeLaunchDescription( PythonLaunchDescriptionSource( os.path.join(pkg_mybot, 'launch', 'my_moveit_rviz.launch.py'))), # ③ Nav2 IncludeLaunchDescription( PythonLaunchDescriptionSource( os.path.join(pkg_nav, 'launch', 'nav_bringup_gazebo.launch.py'))), # ④ Llama 服务端(8081) ExecuteProcess( cmd=[['llama-server', '-m', os.path.expanduser('~/llama.cpp/qwen2.5-coder-0.5b-instruct-q4_k_m.gguf'), '-c', '2048', '--threads', '8', '--port', '8081']], shell=True), # ⑤ ROS 聊天节点 Node(package='tools_demo', executable='chat_ros', name='chat_ros'), # ⑥ foxglove_bridge(9090) Node(package='foxglove_bridge', executable='foxglove_bridge', parameters=[{'port': 9090}]), ])请在这文件里面把图片所展示的内容写成vm里面自动化打开的,而不是ros@u22:~/dev_ws/src/yzbot ./cube_control.sh on red 1命令打开的,现在只能命令打开
09-21
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