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.

Global plan breaks in the middle.

asked 2021-02-15 09:04:50 -0500

miura

1908 ●1 ●171 ●24 https://twitter.com/miura

I'm using navigation forked from tag 1.16.3.

I specified a goal in a large room and tried to create a global plan. The global plan does not extend from the goal to the robot's position, and the robot gets stuck.

The distance between the goal and the robot is roughly 50 meters. At about 10 meters, the global plan is created and the robot proceeds towards the goal. ( The distance is a sensory value and may be off by a large margin. )

Therefore, we believe that there is a limit to the distance of the global plan.

What should I do to extend the global plan to the robot?

Environment

Linux distribution : Ubuntu 18.04 ROS
distribution : melodic

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2021-02-15 09:06:02 -0500

miura

1908 ●1 ●171 ●24 https://twitter.com/miura

I don't know if this is the best way, but I rewrote

pathStep = 0.5;

pathStep = 1.0;

in navfn/src/navfn.cpp, and now the global plan is created even at roughly 50 meters. The global plan is probably coarser as a backlash, but I don't feel it when I look at it with rviz, and it seems to be working fine now.

edit flag offensive delete link

Comments

It's been a while since I asked the question, but I didn't get any other answers, so I'll call this a solution. If I get additional good answers, I will change the best answer, so please let me know if there is a better way.

miura ( 2021-03-25 06:37:17 -0500 )edit

add a comment

Question Tools

Stats

Asked: 2021-02-15 09:04:50 -0500

Seen: 187 times

Last updated: Feb 15 '21

Global plan breaks in the middle. edit