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sliding-scan problem when gmaping

asked 2016-10-31 23:04:14 -0500

sonictl gravatar image

updated 2016-11-03 00:47:58 -0500

I met error when i use gmaping:

in rviz , i see the simulated position is 1/2 of the reality, when i was using gmapping + laser_scaner to build the map.

when I echo the topic /odom , it shows me the right value. is there experts tell me how to configure this?

please see the figure below:

Thank You Very Much!!

image description

I refered the gmaping wiki page and met the tf requirements. I'm using ros_indigo.

my Question is: How to configure my gmapping or other things to make the /scan can be relative static with /map? so I can build reasonable map.

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using arduino_ros_bridge; neato_xv11_driver; robot_setup_tf and teleop_twist_keyboard

sonictl gravatar image sonictl  ( 2016-10-31 23:05:23 -0500 )edit

What is the actual question here?

mgruhler gravatar image mgruhler  ( 2016-11-02 10:45:06 -0500 )edit

How to configure my gmapping or other things to make the /scan can be relative static with /map? so I can build reasonable map.

sonictl gravatar image sonictl  ( 2016-11-02 20:39:58 -0500 )edit

What you describe is similar to what is mentioned in this tutorial on setting up a navigation stack. It seems as if your transnational odometry is underestimated. How eactly are you checking that the /odom topic is correct? Are you comparing it with a physical measurement?

shoemakerlevy9 gravatar image shoemakerlevy9  ( 2016-11-02 20:57:33 -0500 )edit

thank shoemakerlevy9! I did check the /odom data and the real distance robot moved. less than 5% error. I correct this sliding-scan problem by using the launch file. but I met another problem.

sonictl gravatar image sonictl  ( 2016-11-03 00:45:01 -0500 )edit

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answered 2016-11-03 00:47:30 -0500

sonictl gravatar image

updated 2016-11-03 05:33:22 -0500

it seems like that some parameters for gmapping/slam_gmaping are incorrectly configured.

I did check the /odom data and the real distance robot moved. less than 5% error.

Finally, I corrected this sliding-scan problem by using the launch file given by rbx1 . but I met another problem: http://answers.ros.org/question/24711...

The map is like drawn with light strockes. And there are many emissive lines which is not as the reality and should be get rid of.

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Asked: 2016-10-31 23:04:14 -0500

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Last updated: Nov 03 '16