我只能一个摄像机运行
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我需要同时运行两个摄像机
在运行第二台摄像机时，输出：
[ INFO] [1550737732.951379947]: Initializing nodelet with 4 worker threads.
[FATAL] [1550737734.651595532]: Failed to load nodelet '/camera/rgb_rectify_mono` of type `image_proc/rectify` to manager `camera_nodelet_manager'
[camera/rgb_rectify_mono-4] process has died [pid 12535, exit code 255, cmd /opt/ros/indigo/lib/nodelet/nodelet load image_proc/rectify camera_nodelet_manager --no-bond image_mono:=rgb/image_mono image_rect:=rgb/image_rect_mono __name:=rgb_rectify_mono __log:=/home/turtlebot/.ros/log/4c3c5ce6-35a0-11e9-97f4-6c71d9e07c7b/camera-rgb_rectify_mono-4.log].
log file: /home/turtlebot/.ros/log/4c3c5ce6-35a0-11e9-97f4-6c71d9e07c7b/camera-rgb_rectify_mono-4*.log
openni.launch，此文件导致它们之间发生冲突
<!-- Entry point for using OpenNI devices -->
<launch>
<!-- "camera" should uniquely identify the device. All topics are pushed down
into the "camera" namespace, and it is prepended to tf frame ids. -->
<arg name="camera" default="camera" />
<arg name="rgb_frame_id" default="$(arg camera)_rgb_optical_frame" />
<arg name="depth_frame_id" default="$(arg camera)_depth_optical_frame" />
<!-- device_id can have the following formats:
"B00367707227042B": Use device with given serial number
"#1" : Use first device found
"2@3" : Use device on USB bus 2, address 3
"2@0" : Use first device found on USB bus 2
-->
<arg name="device_id" default="#1" />
<!-- By default, calibrations are stored to file://${ROS_HOME}/camera_info/${NAME}.yaml,
where ${NAME} is of the form "[rgb|depth]_[serial#]", e.g. "depth_B00367707227042B".
See camera_info_manager docs for calibration URL details. -->
<arg name="rgb_camera_info_url" default="" />
<arg name="depth_camera_info_url" default="" />
<!-- Use OpenNI's factory-calibrated depth->RGB registration? -->
<arg name="depth_registration" default="false" />
<!-- Arguments for remapping all device namespaces -->
<arg name="rgb" default="rgb" />
<arg name="ir" default="ir" />
<arg name="depth" default="depth" />
<arg name="depth_registered" default="depth_registered" />
<arg name="depth_registered_filtered" default="depth_registered" />
<arg name="projector" default="projector" />
<!-- Optionally suppress loading the driver nodelet and/or publishing the default tf
tree. Useful if you are playing back recorded raw data from a bag, or are
supplying a more accurate tf tree from calibration. -->
<arg name="load_driver" default="true" />
<arg name="publish_tf" default="true" />
<!-- Processing Modules -->
<arg name="rgb_processing" default="true"/>
<arg name="ir_processing" default="true"/>
<arg name="depth_processing" default="true"/>
<arg name="depth_registered_processing" default="true"/>
<arg name="disparity_processing" default="true"/>
<arg name="disparity_registered_processing" default="true"/>
<arg name="hw_registered_processing" default="true" />
<arg name="sw_registered_processing" default="true" />
<!-- Disable bond topics by default -->
<arg name="bond" default="false" /> <!-- DEPRECATED, use respawn arg instead -->
<arg name="respawn" default="$(arg bond)" />
<!-- Worker threads for the nodelet manager -->
<arg name="num_worker_threads" default="4" />
<!-- Push down all topics/nodelets into "camera" namespace -->
<group ns="$(arg camera)">
<!-- Start nodelet manager in top-level namespace -->
<arg name="manager" value="$(arg camera)_nodelet_manager" />
<arg name="debug" default="false" /> <!-- Run manager in GDB? -->
<include file="$(find rgbd_launch)/launch/includes/manager.launch.xml">
<arg name="name" value="$(arg manager)" />
<arg name="debug" value="$(arg debug)" />
<arg name="num_worker_threads" value="$(arg num_worker_threads)" />
</include>
<!-- Load driver -->
<include if="$(arg load_driver)"
file="$(find openni_launch)/launch/includes/device.launch.xml">
<!-- Could really use some syntactic sugar for this -->
<arg name="manager" value="$(arg manager)" />
<arg name="device_id" value="$(arg device_id)" />
<arg name="rgb_frame_id" value="$(arg rgb_frame_id ...
freenect.launch
<!-- Entry point for using OpenNI devices -->
<launch>
<!-- "camera" should uniquely identify the device. All topics are pushed down
into the "camera" namespace, and it is prepended to tf frame ids. -->
<arg name="camera" default="camera" />
<arg name="rgb_frame_id" default="$(arg camera)_rgb_optical_frame" />
<arg name="depth_frame_id" default="$(arg camera)_depth_optical_frame" />
<arg name="data_skip" default="0" />
<!-- device_id can have the following formats:
"B00367707227042B": Use device with given serial number
"#1" : Use first device found
-->
<arg name="device_id" default="#1" />
<!-- By default, calibrations are stored to file://${ROS_HOME}/camera_info/${NAME}.yaml,
where ${NAME} is of the form "[rgb|depth]_[serial#]", e.g. "depth_B00367707227042B".
See camera_info_manager docs for calibration URL details. -->
<arg name="rgb_camera_info_url" default="" />
<arg name="depth_camera_info_url" default="" />
<!-- Use OpenNI's factory-calibrated depth->RGB registration? -->
<arg name="depth_registration" default="false" />
<!-- Arguments for remapping all device namespaces -->
<arg name="rgb" default="rgb" />
<arg name="ir" default="ir" />
<arg name="depth" default="depth" />
<arg name="depth_registered" default="depth_registered" />
<arg name="projector" default="projector" />
<!-- Optionally suppress loading the driver nodelet and/or publishing the default tf
tree. Useful if you are playing back recorded raw data from a bag, or are
supplying a more accurate tf tree from calibration. -->
<arg name="load_driver" default="true" />
<arg name="publish_tf" default="true" />
<!-- Processing Modules -->
<arg name="rgb_processing" default="true"/>
<arg name="ir_processing" default="true"/>
<arg name="depth_processing" default="true"/>
<arg name="depth_registered_processing" default="true"/>
<arg name="disparity_processing" default="true"/>
<arg name="disparity_registered_processing" default="true"/>
<arg name="hw_registered_processing" default="true" />
<arg name="sw_registered_processing" default="true" />
<!-- Disable bond topics by default -->
<arg name="bond" default="false" /> <!-- DEPRECATED, use respawn arg instead -->
<arg name="respawn" default="$(arg bond)" />
<!-- Worker threads for the nodelet manager -->
<arg name="num_worker_threads" default="4" />
<!-- enable libfreenect debug logging -->
<arg name="libfreenect_debug" default="false" />
<!-- enable diagnostics support for freenect_camera -->
<arg name="enable_rgb_diagnostics" default="false" />
<arg name="enable_ir_diagnostics" default="false" />
<arg name="enable_depth_diagnostics" default="false" />
<arg name="diagnostics_max_frequency" default="30.0" />
<arg name="diagnostics_min_frequency" default="30.0" />
<arg name="diagnostics_tolerance" default="0.05" />
<arg name="diagnostics_window_time" default="5.0" />
<!-- Push down all topics/nodelets into "camera" namespace -->
<group ns="$(arg camera)">
<!-- Start nodelet manager in provided namespace -->
<arg name="manager" value="$(arg camera)_nodelet_manager" />
<arg name="debug" default="false" /> <!-- Run manager in GDB? -->
<include file="$(find rgbd_launch)/launch/includes/manager.launch.xml">
<arg name="name" value="$(arg manager)" />
<arg name="debug" value="$(arg debug)" />
<arg name="num_worker_threads" value="$(arg num_worker_threads)" />
</include>
<!-- Load driver -->
<include if="$(arg load_driver)"
file="$(find freenect_launch)/launch/includes/device.launch.xml">
<!-- Could really use some syntactic sugar for this -->
<arg name="manager" value="$(arg manager)" />
<arg name="device_id" value="$(arg device_id)" />
<arg name="rgb_frame_id" value="$(arg rgb_frame_id)" />
<arg name="depth_frame_id" value="$(arg depth_frame_id)" />
<arg name="rgb_camera_info_url" value="$(arg rgb_camera_info_url)" />
<arg name="depth_camera_info_url" value="$(arg depth_camera_info_url)" />
<arg name="depth_registration" value="$(arg depth_registration)" />
<arg name="data_skip" value="$(arg data_skip)" />
<arg name="rgb" value="$(arg rgb)" />
<arg name="ir" value="$(arg ir)" />
<arg name="depth" value="$(arg depth)" />
<arg name="depth_registered" value="$(arg depth_registered)" />
<arg name="projector" value="$(arg projector)" />
<arg name="respawn" value="$(arg respawn)" />
<arg name="libfreenect_debug" value="$(arg libfreenect_debug)" />
<arg name="enable_rgb_diagnostics" value="$(arg enable_rgb_diagnostics)" />
<arg name="enable_ir_diagnostics" value="$(arg enable_ir_diagnostics)" />
<arg name="enable_depth_diagnostics" value="$(arg enable_depth_diagnostics)" />
<arg name="diagnostics_max_frequency" value="$(arg diagnostics_max_frequency)" />
<arg name="diagnostics_min_frequency" value="$(arg diagnostics_min_frequency)" />
<arg name="diagnostics_tolerance" value="$(arg diagnostics_tolerance)" />
<arg name="diagnostics_window_time" value="$(arg diagnostics_window_time)" />
</include>
<!-- Load standard constellation of processing nodelets -->
<include file="$(find rgbd_launch)/launch/includes/processing.launch.xml">
<arg name="manager" value="$(arg manager)" />
<arg name="rgb" value="$(arg rgb)" />
<arg name="ir" value="$(arg ir)" />
<arg name="depth" value="$(arg depth)" />
<arg name="depth_registered" value="$(arg depth_registered)" />
<arg name="projector" value="$(arg projector)" />
<arg name="respawn" value="$(arg respawn)" />
<arg name="rgb_processing" value="$(arg rgb_processing)" />
<arg name="ir_processing" value="$(arg ir_processing)" />
<arg name="depth_processing" value="$(arg depth_processing)" />
<arg name="depth_registered_processing" value="$(arg depth_registered_processing)" />
<arg name="disparity_processing" value="$(arg disparity_processing)" />
<arg name="disparity_registered_processing" value="$(arg disparity_registered_processing)" />
<arg name="hw_registered_processing" value="$(arg hw_registered_processing)" />
<arg name="sw_registered_processing" value="$(arg sw_registered_processing)" />
</include>
</group> <!-- camera -->
<!-- Load reasonable defaults for the relative pose between cameras -->
<include if="$(arg publish_tf)"
file="$(find rgbd_launch)/launch/kinect_frames.launch">
<arg name="camera" value="$(arg camera)" />
</include>
</launch>
我正在运行Kinect
roslaunch freenect_launch freenect.launch
我经营华硕和Kinect
roslaunch openni_launch openni.launch
将ASUS终端中的第二台摄像机作为第二台摄像机运行后，输出：
[ERROR] [1550795336.052843598]: Failed to find nodelet with name '/camera/disparity_registered_hw' to unload
此外，Kinect的输出变为：
[FATAL] [1550795336.061536430]: Failed to unload nodelet '/camera/disparity_registered_hw` from manager `camera_nodelet_manager'
请帮助我
先谢谢您
答案 0 :(得分：0)
我建议尝试在各自的名称空间中启动每个节点。查看启动文件，您应该可以运行：
roslaunch freenect_launch freenect.launch camera:=cam_kinect
和
roslaunch openni_launch openni.launch camera:=cam_asus
这应该避免与节点名称和主题名称冲突。