~$ rostopic list
/cmd_vel
/control_vel
/encoder/odom
/imu/data
/imu_data
/md49_data
/md49_encoders
/pr2_base_odometry/odom
/ref_pose
/ref_vel
/robot_pose_ekf/odom_combined
/rosout
/rosout_agg
/tf
/tf_static
/vo
~$ rosnode info /robot_pose_ekf
Node [/robot_pose_ekf]
Publications:
* /robot_pose_ekf/odom_combined [geometry_msgs/PoseWithCovarianceStamped]
* /rosout [rosgraph_msgs/Log]
* /tf [tf2_msgs/TFMessage]
Subscriptions:
* /imu_data [unknown type]
* /pr2_base_odometry/odom [unknown type]
* /tf [tf2_msgs/TFMessage]
* /tf_static [unknown type]
* /vo [unknown type]
Services:
* /robot_pose_ekf/get_loggers
* /robot_pose_ekf/get_status
* /robot_pose_ekf/set_logger_level
contacting node http://192.168.43.230:42337/ ...
Pid: 3826
Connections:
* topic: /rosout
* to: /rosout
* direction: outbound (38899 - 192.168.43.230:42576) [13]
* transport: TCPROS
* topic: /tf
* to: /robot_pose_ekf
* direction: outbound
* transport: INTRAPROCESS
* topic: /robot_pose_ekf/odom_combined
* to: /kin_controller_3834_1590954489145
* direction: outbound (38899 - 192.168.43.230:42588) [10]
* transport: TCPROS
* topic: /robot_pose_ekf/odom_combined
* to: /dyn_controller_3855_1590954494644
* direction: outbound (38899 - 192.168.43.230:42600) [11]
* transport: TCPROS
* topic: /tf
* to: /robot_pose_ekf (http://192.168.43.230:42337/)
* direction: inbound
* transport: INTRAPROCESS
* topic: /tf
* to: /imu_to_base (http://192.168.43.204:39589/)
* direction: inbound (51902 - 192.168.43.204:43869) [16]
* transport: TCPROS
* topic: /tf
* to: /imu/i2c_imu_node (http://192.168.43.204:44281/)
* direction: inbound (37934 - 192.168.43.204:42235) [17]
* transport: TCPROS
* topic: /tf
* to: /base_odometry_node (http://192.168.43.230:43997/)
* direction: inbound (53868 - 192.168.43.230:56183) [15]
* transport: TCPROS
There are no response for this command
~$ rostopic echo /robot_pose_ekf/odom_combined
I want to echo the output of "robot_pose_ekf"
Originally posted by Ahmed_Desoky on ROS Answers with karma: 23 on 2020-05-31
Post score: 0
Original comments
Comment by Dragonslayer on 2020-05-31:
I had a similar issue the answer was to delete the "/" at the beginning of the topic name. rostopic echo robot_pose_ekf/odom_combined
Comment by Ahmed_Desoky on 2020-05-31:
There are no response also
Comment by Dragonslayer on 2020-05-31:
What does "rostopic hz ..." print? What does "rostopic info ..." print? "roswtf --all"?
Comment by Ahmed_Desoky on 2020-05-31:
This the launch file of the robot pose ekf
<launch>
<node pkg="robot_pose_ekf" type="robot_pose_ekf" name="robot_pose_ekf">
<param name="output_frame" value="odom_combined"/>
<param name="base_footprint_frame" value="base_footprint"/>
<param name="freq" value="30.0"/>
<param name="sensor_timeout" value="1.0"/>
<param name="odom_used" value="true"/>
<param name="imu_used" value="true"/>
<param name="vo_used" value="true"/>
<remap from="odom" to="pr2_base_odometry/odom" />
</node>
</launch>
Comment by Ahmed_Desoky on 2020-05-31:
~$ rostopic hz /robot_pose_ekf/odom_combined
subscribed to [/robot_pose_ekf/odom_combined]
no new messages
no new messages
no new messages
no new messages
no new messages
no new messages
Comment by Ahmed_Desoky on 2020-05-31:
I have edited the post and have showed the :
rosnode info /robot_pose_ekf
Comment by Dragonslayer on 2020-05-31:
Does the tf work? rosrun tf view_frames - whats the output tree?
Comment by Dragonslayer on 2020-05-31:
Are the odom imu and vo actually publishing? What do their rostopic info say?
Comment by Ahmed_Desoky on 2020-05-31:
rosrun tf view_frames
https://drive.google.com/file/d/1Q6uNMweQiyzAyT2Naefa7H9jIXY01yNj/view?usp=sharing
Comment by Ahmed_Desoky on 2020-05-31:
Are the odom imu and vo actually publishing?
/encoder/odom
/imu/data
/imu_data >>>>>>>> No output
/md49_data
/md49_encoders
/pr2_base_odometry/odom >>>> No output
/ref_pose
/ref_vel
/robot_pose_ekf/odom_combined >>>>>>>> No output
/vo >>>>>>>> No output
Comment by Ahmed_Desoky on 2020-05-31:
What do their rostopic info say?
~$ rosnode info /robot_pose_ekf
Node [/robot_pose_ekf]
Publications:
* /robot_pose_ekf/odom_combined [geometry_msgs/PoseWithCovarianceStamped]
* /rosout [rosgraph_msgs/Log]
* /tf [tf2_msgs/TFMessage]
Subscriptions:
* /imu_data [unknown type]
* /pr2_base_odometry/odom [unknown type]
* /tf [tf2_msgs/TFMessage]
* /tf_static [unknown type]
* /vo [unknown type]
Services:
* /robot_pose_ekf/get_loggers
* /robot_pose_ekf/get_status
* /robot_pose_ekf/set_logger_level
the reminder of the rostopic info in the main post. I have edited the post and have showed the rostopic info, please take a look again to the main post
Comment by Ahmed_Desoky on 2020-05-31:
Are the launch file as is showed above is correct ?
Comment by Dragonslayer on 2020-05-31:
Moved to answer.