一、系统环境准备

1.1 安装ROS2 Humble(如未安装)

具体见:Ubuntu的基础配置

1.2 安装依赖包

打开终端,安装基础工具:

sudo apt install -y \
    git \
    build-essential \
    cmake \
    libssl-dev \
    libusb-1.0-0-dev \
    libudev-dev \
    pkg-config \
    libgtk-3-dev

打开终端,安装ROS2相关包:

sudo apt install -y \
    ros-humble-image-transport \
    ros-humble-cv-bridge \
    ros-humble-tf2 \
    ros-humble-tf2-ros \
    ros-humble-tf2-geometry-msgs \
    ros-humble-nav2-bringup \
    ros-humble-depth-image-proc \
    ros-humble-imu-tools \
    ros-humble-imu-filter-madgwick \
    ros-humble-robot-localization

二、安装RealSense SDK和ROS2驱动

注意如果是树莓派上的系统的安装流程不一样,以下方法不适用。

2.1 安装Intel RealSense SDK

(1)打开终端,注册服务器密钥:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key F6E65AC044F831AC80A06380C8B3A55A6F3EFCDE || sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-key F6E65AC044F831AC80A06380C8B3A55A6F3EFCDE
sudo add-apt-repository "deb https://librealsense.intel.com/Debian/apt-repo $(lsb_release -cs) main" -u

(2)安装SDK。在终端输入:

sudo apt-get install librealsense2-dkms librealsense2-utils librealsense2-dev librealsense2-dbg

(3)验证安装。在终端输入:

realsense-viewer

        显示下面的窗口,则安装成功:

        使用数据线将D435i深度相机连上电脑,可以看到:

        连接正常。左边工具栏可以选择显示深度图像或者彩色图像。右上角的2D|3D可以切换为2D或者3D视角。

ros2 run realsense2_camera realsense2_camera_node

2.2 安装RealSense ROS2驱动

参考官方提供的安装步骤:realsense-ros

方法一:直接apt二进制安装(推荐)

        打开终端,输入:

sudo apt install ros-humble-realsense2-*

        深度相机连接电脑后,在终端中输入:

ros2 run realsense2_camera realsense2_camera_node

        打开一个新终端,可以查看话题内容:

ros2 topic list -t

        具体如下。可以看到包括彩色、深度等信息:

/camera/camera/color/camera_info [sensor_msgs/msg/CameraInfo]
/camera/camera/color/image_raw [sensor_msgs/msg/Image]
/camera/camera/color/image_raw/compressed [sensor_msgs/msg/CompressedImage]
/camera/camera/color/image_raw/compressedDepth [sensor_msgs/msg/CompressedImage]
/camera/camera/color/image_raw/theora [theora_image_transport/msg/Packet]
/camera/camera/color/metadata [realsense2_camera_msgs/msg/Metadata]
/camera/camera/depth/camera_info [sensor_msgs/msg/CameraInfo]
/camera/camera/depth/image_rect_raw [sensor_msgs/msg/Image]
/camera/camera/depth/image_rect_raw/compressed [sensor_msgs/msg/CompressedImage]
/camera/camera/depth/image_rect_raw/compressedDepth [sensor_msgs/msg/CompressedImage]
/camera/camera/depth/image_rect_raw/theora [theora_image_transport/msg/Packet]
/camera/camera/depth/metadata [realsense2_camera_msgs/msg/Metadata]
/camera/camera/extrinsics/depth_to_color [realsense2_camera_msgs/msg/Extrinsics]
/camera/camera/extrinsics/depth_to_infra1 [realsense2_camera_msgs/msg/Extrinsics]
/camera/camera/extrinsics/depth_to_infra2 [realsense2_camera_msgs/msg/Extrinsics]
/camera/camera/infra1/camera_info [sensor_msgs/msg/CameraInfo]
/camera/camera/infra1/image_rect_raw [sensor_msgs/msg/Image]
/camera/camera/infra1/image_rect_raw/compressed [sensor_msgs/msg/CompressedImage]
/camera/camera/infra1/image_rect_raw/compressedDepth [sensor_msgs/msg/CompressedImage]
/camera/camera/infra1/image_rect_raw/theora [theora_image_transport/msg/Packet]
/camera/camera/infra1/metadata [realsense2_camera_msgs/msg/Metadata]
/camera/camera/infra2/camera_info [sensor_msgs/msg/CameraInfo]
/camera/camera/infra2/image_rect_raw [sensor_msgs/msg/Image]
/camera/camera/infra2/image_rect_raw/compressed [sensor_msgs/msg/CompressedImage]
/camera/camera/infra2/image_rect_raw/compressedDepth [sensor_msgs/msg/CompressedImage]
/camera/camera/infra2/image_rect_raw/theora [theora_image_transport/msg/Packet]
/camera/camera/infra2/metadata [realsense2_camera_msgs/msg/Metadata]
/parameter_events [rcl_interfaces/msg/ParameterEvent]
/rosout [rcl_interfaces/msg/Log]
/tf_static [tf2_msgs/msg/TFMessage]

方法一:源码编译安装(易出错,不推荐)

(1)创建工作空间,打开终端,输入:

mkdir -p ~/ros2_ws/src
cd ~/ros2_ws/src

(2)克隆仓库。在终端中输入:

git clone https://github.com/IntelRealSense/realsense-ros.git -b ros2-development

拉取失败可以多试试几次,或者换个网。

(3)安装依赖。在终端中输入:

cd ~/ros2_ws
rosdep update

rosdep install -i --from-path src --rosdistro humble -y

注意要提前安装好rosdep:

sudo apt-get install python3-rosdep

rosdep初始化:

sudo rosdep init
rosdep update

(4)编译。在终端中输入:

colcon build
source ~/ros2_ws/install/setup.bash

        会出现以上报错,提示编译失败,需要对源码进行修改调整。

因此不太推荐方法二!

三、安装RTAB-Map ROS2

3.1 安装RTAB-Map核心库

方法一:从apt二进制安装(推荐)

        打开终端,输入:

sudo apt install ros-humble-rtabmap

方法二:从源码编译

        打开终端,输入:        

cd ~/ros2_ws/src

        拉取代码:

git clone https://github.com/introlab/rtabmap.git

        编译:

cd rtabmap/build
cmake -DWITH_QT=OFF ..
make -j4

        安装:

sudo make install

3.2 安装RTAB-Map ROS2包

方法一:从apt二进制安装(推荐)

        打开终端,输入:

sudo apt install ros-$ROS_DISTRO-rtabmap-ros

        同样,还可以安装其他相关包:

sudo apt install ros-humble-rtabmap-rviz
sudo apt install ros-humble-rtabmap-*

方法二:从源码编译

注意:若要进行源码安装,请先确保二进制清除干净。打开终端,运行下行命令:

sudo apt remove ros-$ROS_DISTRO-rtabmap*

         拉取代码。打开终端,输入:  

cd ~/ros2_ws/src
git clone https://github.com/introlab/rtabmap_ros.git -b ros2

        安装依赖:

cd ~/ros2_ws
rosdep install -i --from-path src --rosdistro humble -y

        编译:

colcon build --symlink-install
source ~/ros2_ws/install/setup.bash

至此,我们完成了环境的配置工作。

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