Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

/tf suddenly missing

asked 2022-03-27 03:53:45 -0500

Kevin1719
58 ●7 ●17 ●25

Hi, I'm using a robot run with Raspberry Pi 3, and I'm controlling it from my computer using ROS_MASTER_URI. As usual, after loading my robot_description parameter and run robot_state_publisher node, I can view my robot in Rviz from /tf, but suddenly, when I re-run the process, Rviz said "no tf data", although the topic /tf still exist and there still have the robot_description parameter. What could be the problem? I have struggled with this for days.

edit retag flag offensive close merge delete

Comments

Did you restart the ros-master (roscore)? All ros nodes must be restarted if the ros-master restarts, including rviz.

Mike Scheutzow ( 2022-03-27 08:50:50 -0500 )edit

Thanks Mike for your reply, good to see you. I figured out the problem and will post the answer.

Kevin1719 ( 2022-03-27 09:58:19 -0500 )edit

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2022-03-27 10:01:27 -0500

Kevin1719
58 ●7 ●17 ●25

After a while, I found the solution. When I echo the /tf topic in my computer's terminal, nothing is displayed, but when I did that in the Pi3's terminal, those data appeared. Then I think it may be the connection problem. I realized that there were many devices using the Wifi, so I turn off some of them and restart the machine, then everything back to normal.

edit flag offensive delete link

add a comment

Question Tools

1 follower

Stats

Asked: 2022-03-27 03:53:45 -0500

Seen: 145 times

Last updated: Mar 27 '22

/tf suddenly missing edit

Comments

1 Answer

Question Tools

Stats

Related questions

/tf suddenly missing