ROS仿真小车与SLAM
- ROS中机器小车的仿真实验
- 一、建立模型
- 1.创建功能包
- 导入依赖:
- 创建urdf,launch文件:
- 2.可视化
- 二、添加雷达传感器
- 1.编写xacro文件
- 2.集成launch文件
- 3.添加摄像头和雷达传感器
- my_camera.urdf.xacro文件:
- my_laser.urdf.xacro文件:
- my_car_camer.urdf.xacro文件:
- 4.修改launch文件
- 5.启动
- 三、GAZEBO仿真
- my_base.urdf.xacro:
- my_camera.urdf.xacro:
- my_car_camera.urdf.xacro:
- my_laser.urdf.xacro:
- orbslam2+kitti数据序列图像
- 一.下载
- 1、下载依赖
- 2.下载Pangolin
- 3.下载Ceres
- 4.下载g2o
- 5.下载DBoW3
- 二、安装编译ORB_SLAM2
- 1.下载ORB_SLAM2的安装包
- 2.配置环境
- 3.使用ROS编译
- 运行Kitee数据集
- 1.准备数据集
- 2.运行ORB_SLAM2
- 4.下载g2o
- 5.下载DBoW3
ROS中机器小车的仿真实验
一、建立模型
1.创建功能包
mkdir -p catkin_ws/src
cd catkin_ws/src
catkin_init_workspace
导入依赖:
catkin_create_pkg jubot_demo urdf xacro
cd jubot_demo/
mkdir urdf
mkdir launch
mkdir meshes
mkdir config
创建urdf,launch文件:
<launch>
<!-- 将 urdf 文件内容设置进参数服务器 -->
<param name="robot_description" textfile="$(find jubot_demo)/urdf/box_urdf.urdf" />
<!-- 启动 rviz -->
<!-- <node pkg="rviz" type="rviz" name="rviz" /> -->
<node pkg="rviz" type="rviz" name="rviz" args="-d $(find jubot_demo)/config/rviz/show_four_wheel_car.rviz" />
<!-- 启动机器人状态和关节状态发布节点 -->
<node pkg="robot_state_publisher" type="robot_state_publisher" name="robot_state_publisher" />
<node pkg="joint_state_publisher" type="joint_state_publisher" name="joint_state_publisher" />
<!-- 启动图形化的控制关节运动节点 -->
<node pkg="joint_state_publisher_gui" type="joint_state_publisher_gui" name="joint_state_publisher_gui" />
</launch>
urdf:
<!-- <robot name="mycar">
<link name="base_link">
<visual>
<geometry>
<box size="0.5 0.2 0.1" />
</geometry>
</visual>
</link>
</robot> -->
<robot name="mycar">
<!-- 设置 base_footprint -->
<link name="base_footprint">
<visual>
<geometry>
<sphere radius="0.001" />
</geometry>
</visual>
</link>
<!-- 添加底盘 -->
<!--
参数
形状:圆柱
半径:10 cm
高度:8 cm
离地:1.5 cm
-->
<link name="base_link">
<visual>
<geometry>
<cylinder radius="0.1" length="0.08" />
</geometry>
<origin xyz="0 0 0" rpy="0 0 0" />
<material name="yellow">
<color rgba="0.8 0.3 0.1 0.5" />
</material>
</visual>
</link>
<joint name="base_link2base_footprint" type="fixed">
<parent link="base_footprint" />
<child link="base_link"/>
<origin xyz="0 0 0.055" />
</joint>
<!-- 添加驱动轮 -->
<!-- 添加驱动轮 -->
<!--
驱动轮是侧翻的圆柱
参数
半径: 3.25 cm
宽度: 1.5 cm
颜色: 黑色
关节设置:
x = 0
y = 底盘的半径 + 轮胎宽度 / 2
z = 离地间距 + 底盘长度 / 2 - 轮胎半径 = 1.5 + 4 - 3.25 = 2.25(cm)
axis = 0 1 0
-->
<link name="left_wheel">
<visual>
<geometry>
<cylinder radius="0.0325" length="0.015" />
</geometry>
<origin xyz="0 0 0" rpy="1.5705 0 0" />
<material name="black">
<color rgba="0.0 0.0 0.0 1.0" />
</material>
</visual>
</link>
<joint name="left_wheel2base_link" type="continuous">
<parent link="base_link" />
<child link="left_wheel" />
<origin xyz="0 0.1 -0.0225" />
<axis xyz="0 1 0" />
</joint>
<link name="right_wheel">
<visual>
<geometry>
<cylinder radius="0.0325" length="0.015" />
</geometry>
<origin xyz="0 0 0" rpy="1.5705 0 0" />
<material name="black">
<color rgba="0.0 0.0 0.0 1.0" />
</material>
</visual>
</link>
<joint name="right_wheel2base_link" type="continuous">
<parent link="base_link" />
<child link="right_wheel" />
<origin xyz="0 -0.1 -0.0225" />
<axis xyz="0 1 0" />
</joint>
<!-- 添加万向轮(支撑轮) -->
<!-- 添加万向轮(支撑轮) -->
<!--
参数
形状: 球体
半径: 0.75 cm
颜色: 黑色
关节设置:
x = 自定义(底盘半径 - 万向轮半径) = 0.1 - 0.0075 = 0.0925(cm)
y = 0
z = 底盘长度 / 2 + 离地间距 / 2 = 0.08 / 2 + 0.015 / 2 = 0.0475 axis= 1 1 1
-->
<link name="front_wheel">
<visual>
<geometry>
<sphere radius="0.0075" />
</geometry>
<origin xyz="0 0 0" rpy="0 0 0" />
<material name="black">
<color rgba="0.0 0.0 0.0 1.0" />
</material>
</visual>
</link>
<joint name="front_wheel2base_link" type="continuous">
<parent link="base_link" />
<child link="front_wheel" />
<origin xyz="0.0925 0 -0.0475" />
<axis xyz="1 1 1" />
</joint>
<link name="back_wheel">
<visual>
<geometry>
<sphere radius="0.0075" />
</geometry>
<origin xyz="0 0 0" rpy="0 0 0" />
<material name="black">
<color rgba="0.0 0.0 0.0 1.0" />
</material>
</visual>
</link>
<joint name="back_wheel2base_link" type="continuous">
<parent link="base_link" />
<child link="back_wheel" />
<origin xyz="-0.0925 0 -0.0475" />
<axis xyz="1 1 1" />
</joint>
</robot>
2.可视化
先编译配置launch文件,退到主目录catkin_ws下,执行catkin_make。
成功之后,再执行 catkin_make install。
然后在主目录catkin_make下配置环境变量source devel/setup.bash。
检测环境变量是否配置成功echo $ROS_PACKAGE_PATH。
再启动launch文件,完成可视化的建立:
roslaunch jubot_demo box_launch.launch
模型:
二、添加雷达传感器
1.编写xacro文件
在urdf文件夹下建一个xacro文件夹,在文件夹中新建my_base.urdf.xacro文件,编写xacro文件:
<robot name="my_base" xmlns:xacro="http://www.ros.org/wiki/xacro">
<xacro:property name="PI" value="3.141"/>
<material name="black">
<color rgba="0.0 0.0 0.0 1.0" />
</material>
<xacro:property name="base_footprint_radius" value="0.001" />
<xacro:property name="base_link_radius" value="0.1" />
<xacro:property name="base_link_length" value="0.08" />
<xacro:property name="earth_space" value="0.015" />
<link name="base_footprint">
<visual>
<geometry>
<sphere radius="${base_footprint_radius}" />
</geometry>
</visual>
</link>
<link name="base_link">
<visual>
<geometry>
<cylinder radius="${base_link_radius}" length="${base_link_length}" />
</geometry>
<origin xyz="0 0 0" rpy="0 0 0" />
<material name="yellow">
<color rgba="0.5 0.3 0.0 0.5" />
</material>
</visual>
</link>
<joint name="base_link2base_footprint" type="fixed">
<parent link="base_footprint" />
<child link="base_link" />
<origin xyz="0 0 ${earth_space + base_link_length / 2 }" />
</joint>
<xacro:property name="wheel_radius" value="0.0325" />
<xacro:property name="wheel_length" value="0.015" />
<xacro:macro name="add_wheels" params="name flag">
<link name="${name}_wheel">
<visual>
<geometry>
<cylinder radius="${wheel_radius}" length="${wheel_length}" />
</geometry>
<origin xyz="0.0 0.0 0.0" rpy="${PI / 2} 0.0 0.0" />
<material name="black" />
</visual>
</link>
<joint name="${name}_wheel2base_link" type="continuous">
<parent link="base_link" />
<child link="${name}_wheel" />
<origin xyz="0 ${flag * base_link_radius} ${-(earth_space + base_link_length / 2 - wheel_radius) }" />
<axis xyz="0 1 0" />
</joint>
</xacro:macro>
<xacro:add_wheels name="left" flag="1" />
<xacro:add_wheels name="right" flag="-1" />
<xacro:property name="support_wheel_radius" value="0.0075" /> <!-- 支撑轮半径 -->
<xacro:macro name="add_support_wheel" params="name flag" >
<link name="${name}_wheel">
<visual>
<geometry>
<sphere radius="${support_wheel_radius}" />
</geometry>
<origin xyz="0 0 0" rpy="0 0 0" />
<material name="black" />
</visual>
</link>
<joint name="${name}_wheel2base_link" type="continuous">
<parent link="base_link" />
<child link="${name}_wheel" />
<origin xyz="${flag * (base_link_radius - support_wheel_radius)} 0 ${-(base_link_length / 2 + earth_space / 2)}" />
<axis xyz="1 1 1" />
</joint>
</xacro:macro>
<xacro:add_support_wheel name="front" flag="1" />
<xacro:add_support_wheel name="back" flag="-1" />
</robot>
2.集成launch文件
在 launch 文件加载 xacro,box_launch文件:
<launch>
<!-- <param name="robot_description" textfile="$(find jubot_demo)/urdf/box_urdf.urdf" /> -->
<param name="robot_description" command="$(find xacro)/xacro $(find jubot_demo)/urdf/xacro/my_base.urdf.xacro" />
<!-- <node pkg="rviz" type="rviz" name="rviz" /> -->
<node pkg="rviz" type="rviz" name="rviz" args="-d $(find jubot_demo)/config/rviz/show_four_wheel_car.rviz" />
<node pkg="robot_state_publisher" type="robot_state_publisher" name="robot_state_publisher" />
<node pkg="joint_state_publisher" type="joint_state_publisher" name="joint_state_publisher" />
<node pkg="joint_state_publisher_gui" type="joint_state_publisher_gui" name="joint_state_publisher_gui" />
</launch>
加载robot_description时使用command属性,属性值就是调用 xacro 功能包的 xacro 程序直接解析 xacro 文件,然后启动launch文件
3.添加摄像头和雷达传感器
在xacro文件夹中建my_camera.urdf.xacro my_car_camera.urdf.xacro my_laser.urdf.xacro文件
my_camera.urdf.xacro文件:
<robot name="my_camera" xmlns:xacro="http://wiki.ros.org/xacro">
<!-- 摄像头属性 -->
<xacro:property name="camera_length" value="0.01" /> <!-- 摄像头长度(x) -->
<xacro:property name="camera_width" value="0.025" /> <!-- 摄像头宽度(y) -->
<xacro:property name="camera_height" value="0.025" /> <!-- 摄像头高度(z) -->
<xacro:property name="camera_x" value="0.08" /> <!-- 摄像头安装的x坐标 -->
<xacro:property name="camera_y" value="0.0" /> <!-- 摄像头安装的y坐标 -->
<xacro:property name="camera_z" value="${base_link_length / 2 + camera_height / 2}" />
<link name="camera">
<visual>
<geometry>
<box size="${camera_length} ${camera_width} ${camera_height}" />
</geometry>
<origin xyz="0.0 0.0 0.0" rpy="0.0 0.0 0.0" />
<material name="black" />
</visual>
</link>
<joint name="camera2base_link" type="fixed">
<parent link="base_link" />
<child link="camera" />
<origin xyz="${camera_x} ${camera_y} ${camera_z}" />
</joint>
</robot>
my_laser.urdf.xacro文件:
<robot name="my_camera" xmlns:xacro="http://wiki.ros.org/xacro">
<xacro:property name="camera_length" value="0.01" />
<xacro:property name="camera_width" value="0.025" />
<xacro:property name="camera_height" value="0.025" />
<xacro:property name="camera_x" value="0.08" />
<xacro:property name="camera_y" value="0.0" />
<xacro:property name="camera_z" value="${base_link_length / 2 + camera_height / 2}" />
<link name="camera">
<visual>
<geometry>
<box size="${camera_length} ${camera_width} ${camera_height}" />
</geometry>
<origin xyz="0.0 0.0 0.0" rpy="0.0 0.0 0.0" />
<material name="black" />
</visual>
</link>
<joint name="camera2base_link" type="fixed">
<parent link="base_link" />
<child link="camera" />
<origin xyz="${camera_x} ${camera_y} ${camera_z}" />
</joint>
</robot>
my_car_camer.urdf.xacro文件:
<!-- 组合小车底盘与摄像头与雷达 -->
<robot name="my_car_camera" xmlns:xacro="http://wiki.ros.org/xacro">
<xacro:include filename="my_base.urdf.xacro" />
<xacro:include filename="my_camera.urdf.xacro" />
<xacro:include filename="my_laser.urdf.xacro" />
</robot>
4.修改launch文件
<launch>
<!-- <param name="robot_description" command="$(find xacro)/xacro $(find jubot_demo)/urdf/xacro/my_base.urdf.xacro" /> -->
<param name="robot_description" command="$(find xacro)/xacro $(find jubot_demo)/urdf/xacro/my_car_camera.urdf.xacro" />
<node pkg="rviz" type="rviz" name="rviz" args="-d $(find jubot_demo)/config/rviz/show_four_wheel_car.rviz" />
<node pkg="robot_state_publisher" type="robot_state_publisher" name="robot_state_publisher" />
<node pkg="joint_state_publisher" type="joint_state_publisher" name="joint_state_publisher" />
<node pkg="joint_state_publisher_gui" type="joint_state_publisher_gui" name="joint_state_publisher_gui" />
</launch>
5.启动
三、GAZEBO仿真
修改碰撞属性和惯性矩阵,导入到gazebo中。
my_base.urdf.xacro:
<robot name="base" xmlns:xacro="http://wiki.ros.org/xacro">
<xacro:macro name="sphere_inertial_matrix" params="m r">
<inertial>
<mass value="${m}" />
<inertia ixx="${2*m*r*r/5}" ixy="0" ixz="0"
iyy="${2*m*r*r/5}" iyz="0"
izz="${2*m*r*r/5}" />
</inertial>
</xacro:macro>
<xacro:macro name="cylinder_inertial_matrix" params="m r h">
<inertial>
<mass value="${m}" />
<inertia ixx="${m*(3*r*r+h*h)/12}" ixy = "0" ixz = "0"
iyy="${m*(3*r*r+h*h)/12}" iyz = "0"
izz="${m*r*r/2}" />
</inertial>
</xacro:macro>
<xacro:macro name="Box_inertial_matrix" params="m l w h">
<inertial>
<mass value="${m}" />
<inertia ixx="${m*(h*h + l*l)/12}" ixy = "0" ixz = "0"
iyy="${m*(w*w + l*l)/12}" iyz= "0"
izz="${m*(w*w + h*h)/12}" />
</inertial>
</xacro:macro>
</robot>
my_camera.urdf.xacro:
<robot name="my_camera" xmlns:xacro="http://wiki.ros.org/xacro">
<xacro:property name="camera_length" value="0.01" />
<xacro:property name="camera_width" value="0.025" />
<xacro:property name="camera_height" value="0.025" />
<xacro:property name="camera_x" value="0.08" />
<xacro:property name="camera_y" value="0.0" />
<xacro:property name="camera_z" value="${base_link_length / 2 + camera_height / 2}" />
<xacro:property name="camera_m" value="0.01" />
<link name="camera">
<visual>
<geometry>
<box size="${camera_length} ${camera_width} ${camera_height}" />
</geometry>
<origin xyz="0.0 0.0 0.0" rpy="0.0 0.0 0.0" />
<material name="black" />
</visual>
<collision>
<geometry>
<box size="${camera_length} ${camera_width} ${camera_height}" />
</geometry>
<origin xyz="0.0 0.0 0.0" rpy="0.0 0.0 0.0" />
</collision>
<xacro:Box_inertial_matrix m="${camera_m}" l="${camera_length}" w="${camera_width}" h="${camera_height}" />
</link>
<joint name="camera2base_link" type="fixed">
<parent link="base_link" />
<child link="camera" />
<origin xyz="${camera_x} ${camera_y} ${camera_z}" />
</joint>
<gazebo reference="camera">
<material>Gazebo/Blue</material>
</gazebo>
</robot>
my_car_camera.urdf.xacro:
<robot name="my_laser" xmlns:xacro="http://wiki.ros.org/xacro">
<xacro:property name="support_length" value="0.15" />
<xacro:property name="support_radius" value="0.01" />
<xacro:property name="support_x" value="0.0" />
<xacro:property name="support_y" value="0.0" />
<xacro:property name="support_z" value="${base_link_length / 2 + support_length / 2}" />
<xacro:property name="support_m" value="0.02" />
<link name="support">
<visual>
<geometry>
<cylinder radius="${support_radius}" length="${support_length}" />
</geometry>
<origin xyz="0.0 0.0 0.0" rpy="0.0 0.0 0.0" />
<material name="red">
<color rgba="0.8 0.2 0.0 0.8" />
</material>
</visual>
<collision>
<geometry>
<cylinder radius="${support_radius}" length="${support_length}" />
</geometry>
<origin xyz="0.0 0.0 0.0" rpy="0.0 0.0 0.0" />
</collision>
<xacro:cylinder_inertial_matrix m="${support_m}" r="${support_radius}" h="${support_length}" />
</link>
<joint name="support2base_link" type="fixed">
<parent link="base_link" />
<child link="support" />
<origin xyz="${support_x} ${support_y} ${support_z}" />
</joint>
<gazebo reference="support">
<material>Gazebo/White</material>
</gazebo>
<xacro:property name="laser_length" value="0.05" />
<xacro:property name="laser_radius" value="0.03" />
<xacro:property name="laser_x" value="0.0" />
<xacro:property name="laser_y" value="0.0" />
<xacro:property name="laser_z" value="${support_length / 2 + laser_length / 2}" />
<xacro:property name="laser_m" value="0.1" />
<link name="laser">
<visual>
<geometry>
<cylinder radius="${laser_radius}" length="${laser_length}" />
</geometry>
<origin xyz="0.0 0.0 0.0" rpy="0.0 0.0 0.0" />
<material name="black" />
</visual>
<collision>
<geometry>
<cylinder radius="${laser_radius}" length="${laser_length}" />
</geometry>
<origin xyz="0.0 0.0 0.0" rpy="0.0 0.0 0.0" />
</collision>
<xacro:cylinder_inertial_matrix m="${laser_m}" r="${laser_radius}" h="${laser_length}" />
</link>
<joint name="laser2support" type="fixed">
<parent link="support" />
<child link="laser" />
<origin xyz="${laser_x} ${laser_y} ${laser_z}" />
</joint>
<gazebo reference="laser">
<material>Gazebo/Black</material>
</gazebo>
</robot>
my_laser.urdf.xacro:
<robot name="my_car_camera" xmlns:xacro="http://wiki.ros.org/xacro">
<xacro:include filename="gazebo_head.xacro" />
<xacro:include filename="gazebo_car.xacro" />
<xacro:include filename="gazebo_laser.xacro" />
<xacro:include filename="gazebo_camera.xacro" />
</robot>
在launch文件夹下创建文件gazebo_car.launch,在gazebo_car.launch文件中编写:
<launch>
<param name="robot_description" command="$(find xacro)/xacro $(find urdf_gazebo)/urdf/xacro/gazebo_car_union.xacro" />
<include file="$(find gazebo_ros)/launch/empty_world.launch" />
<node pkg="gazebo_ros" type="spawn_model" name="model" args="-urdf -model mycar -param robot_description" />
</launch>
orbslam2+kitti数据序列图像
一.下载
1、下载依赖
链接:https://gitcode.com/raulmur/ORB_SLAM2/overview?tab=readme-ov-file&utm_source=csdn_github_accelerator&isLogin=1
2.下载Pangolin
cd Pangolin
mkdir build && cd build
cmake ..
sudo make -j8
3.下载Ceres
sudo apt-get install liblapack-dev libsuitesparse-dev libcxsparse3 libgflags-dev libgoogle-glog-dev libgtest-dev
cd ceres-solver
mkdir build && cd build
cmake ..
sudo make -j8
sudo make install
4.下载g2o
sudo apt-get install qt5-qmake qt5-default libqglviewer-dev-qt5 libsuitesparse-dev libcxsparse3 libcholmod3
cd g2o
mkdir build && cd build
cmake ..
sudo make -j8
sudo make install
5.下载DBoW3
mkdir build
cd build/
cmake ..
make
sudo make install
二、安装编译ORB_SLAM2
1.下载ORB_SLAM2的安装包
2.配置环境
cd ~/catkin_ws/src/ORB_SLAM2
sudo chmod +x build.sh
./build.sh
3.使用ROS编译
sudo chmod +x build_ros.sh
./build_ros.sh
运行Kitee数据集
1.准备数据集
下载链接:https://www.cvlibs.net/datasets/kitti/eval_odometry.php
2.运行ORB_SLAM2
make -j8
sudo make install
4.下载g2o
sudo apt-get install qt5-qmake qt5-default libqglviewer-dev-qt5 libsuitesparse-dev libcxsparse3 libcholmod3
cd g2o
mkdir build && cd build
cmake …
sudo make -j8
sudo make install
5.下载DBoW3
mkdir build
cd build/
cmake …
make
sudo make install