ros2 bag pause
时间: 2024-08-16 12:05:55 浏览: 102
在ROS 2(Robot Operating System)中,`ros2 bag pause`命令用于暂停当前记录的bag文件(一种数据记录工具,类似于日志,通常用于回放和分析机器人系统的运行数据)。当你想要暂时停止捕获正在发生的传感器数据或其他消息流时,可以使用这个命令。例如,如果你正在进行一项实验,并希望在某个阶段暂停记录以便进行干预或调整,就可以通过`ros2 bag pause`来操作。
如果你想继续录制,你可以使用`ros2 bag resume`命令。如果想查看当前的bag状态(如是否处于暂停或运行),可以使用`ros2 bag info`命令查看详细信息。
相关问题
humble ros1bag转ros2bag
As an AI language model, I cannot perform any actions beyond providing information. However, I can provide you with some guidance on how to convert a ROS1 bag file to a ROS2 bag file.
There are different approaches to converting ROS1 bag files to ROS2 bag files. One of the simplest ways is to use the ROS1-ROS2 bridge, which allows communication between ROS1 and ROS2 systems. To convert a ROS1 bag file to a ROS2 bag file using the bridge, you can follow these steps:
1. Install the ROS1-ROS2 bridge package on your ROS2 system. You can do this by running the following command in your terminal:
```
sudo apt-get install ros-<distro>-ros1-bridge
```
Make sure to replace `<distro>` with the ROS2 distribution you are using (e.g., foxy, galactic).
2. Source the ROS1 and ROS2 environments in separate terminal windows:
```
source /opt/ros/<distro>/setup.bash # for ROS1
source /opt/ros/<distro>/setup.bash # for ROS2
```
3. Launch the ROS1-ROS2 bridge node in one terminal window:
```
ros2 run ros1_bridge dynamic_bridge
```
4. In another terminal window, use the rosbag tool to play the ROS1 bag file and publish its messages to the ROS2 bridge:
```
ros1bag play <ros1_bag_file> --clock --pause --loop
```
5. In a third terminal window, use the ROS2 bag tool to record the messages published by the bridge:
```
ros2 bag record -a
```
This will record all the messages published by the ROS1-ROS2 bridge and save them to a ROS2 bag file.
Note that the conversion process may take some time, depending on the size of the ROS1 bag file and the complexity of the messages it contains. Also, not all message types are currently supported by the ROS1-ROS2 bridge, so you may encounter some errors or limitations during the conversion process.
利用zed相机为rtabmap_ros录制rosbag包及其使用
利用 ZED 相机为 rtabmap_ros 录制 rosbag 包的步骤如下:
1. 安装 ZED 相机驱动和 SDK。可以在官网上下载对应的安装包,然后按照官方文档进行安装。
2. 安装 rtabmap 和 rtabmap_ros。可以使用以下命令进行安装:
```
sudo apt-get install ros-<distro>-rtabmap ros-<distro>-rtabmap-ros
```
其中, `<distro>` 表示 ROS 版本,比如 `melodic`。
3. 启动 ZED 相机节点。可以使用以下命令启动 ZED 相机节点:
```
roslaunch zed_wrapper zed.launch
```
4. 启动 rtabmap_ros 节点。可以使用以下命令启动 rtabmap_ros 节点:
```
roslaunch rtabmap_ros rtabmap.launch rtabmap_args:="--delete_db_on_start" depth_topic:=/zed/depth/depth_registered rgb_topic:=/zed/rgb/image_rect_color
```
其中,`depth_topic` 和 `rgb_topic` 分别指定 ZED 相机发布的深度图和彩色图的 ROS 话题。
5. 手动控制 ZED 相机采集数据,或者使用 ROS 工具录制 rosbag 包。可以使用以下命令录制 rosbag 包:
```
rosbag record -O data.bag /zed/depth/depth_registered /zed/rgb/image_rect_color /rtabmap/odom
```
其中,`data.bag` 是保存的 rosbag 包的文件名,`/zed/depth/depth_registered` 和 `/zed/rgb/image_rect_color` 分别是 ZED 相机发布的深度图和彩色图的 ROS 话题,`/rtabmap/odom` 是 rtabmap_ros 发布的位姿信息的 ROS 话题。
录制完成后,可以使用以下命令播放 rosbag 包并查看 rtabmap 工作效果:
```
rosbag play data.bag --pause
roslaunch rtabmap_ros rtabmap.launch rtabmap_args:="--delete_db_on_start" depth_topic:=/camera/depth/image_rect_raw rgb_topic:=/camera/color/image_raw localization:=true
```
`localization:=true` 表示在 rtabmap 工作时只进行定位,不进行建图。在播放 rosbag 包时,先暂停,然后使用 rtabmap_ros 启动节点,最后按下空格键开始播放 rosbag 包。
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