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amcl odom dynamic obstacles

asked 2014-09-05 12:36:01 -0500

alex920a gravatar image

Hello everybody! I have a problem: I'm running amcl and navigation stack on husky in a empty room. If I add some obstacles in the room the global costmap will update but unfortunately the odom frame will have a wrong position. Can somebody help me please? I'm using hydro on ubuntu 12.04lts

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answered 2014-09-05 14:28:51 -0500

bvbdort gravatar image

updated 2014-09-05 14:35:07 -0500

Which map are you using ? if your map is for empty room and if you use amcl for room with obstacles localization will not be accurate. if your obstacles are moving at high rate and dont cover most of the view of sensor, amcl gives sufficient result which is not same if obstacle are static or very slow and big.

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I'm using a static map of an empty room created with gmapping. Now I add to the stage some obstacles and trying moving the robot, but it's position will jump around and localization will not be accurated. Any suggestion? Should I use laser scan matcher instead of robot pose ekf?

alex920a gravatar image alex920a  ( 2014-09-06 04:13:06 -0500 )edit

You need to update map with obstacle for correct localization. Currently no packages for available this. this topic is still in research. Google "localization in changing environments" for some papers.

bvbdort gravatar image bvbdort  ( 2014-09-06 04:30:38 -0500 )edit

So with robot pose ekf and laserscan matcher the position will always fail?

alex920a gravatar image alex920a  ( 2014-09-06 04:38:38 -0500 )edit

if you know initial position, you can use robot pose ekf and laserscan matcher

bvbdort gravatar image bvbdort  ( 2014-09-06 04:59:49 -0500 )edit

I'll try and let you know!

alex920a gravatar image alex920a  ( 2014-09-06 05:00:48 -0500 )edit

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Asked: 2014-09-05 12:36:01 -0500

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Last updated: Sep 05 '14