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2016-05-31 09:08:27 -0500 | marked best answer | How to set the initial pose for the robot in navigation? Hi! I followed the tutorials of navigation , but I meet some problems. I joysticked the robot and used Gmapping to generate a map . Next I turn off the robot and restart it . The laser scan and odometry work well. Then I use that map with AMCL. When I load the map with Map_Sever,the rviz shows that the robot always stays in the original point of the map by defalut although the robot is in other places actually.I donot know how to set the initial pose for the robot . Can the robot match the laser date with the environment of the map and make itself localized autonomously ? Or do I need to set the initialpose for the robot manully? Any suggestion will be appreciated!Thank you very much! |
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2015-05-31 19:14:57 -0500 | marked best answer | How to mark victims in hector slam? Hi, I am using Hector_Slam for mapping.And I use hector_geotiff to save maps.But what should I do to mark victims on maps ?Any advice will be appreciated !Thank you very much! |
2015-03-25 05:29:20 -0500 | marked best answer | I run into an error when using move_base package of navigation Hi,everyone!when I was setting up my robot for navigation ,I followed the navigation tutorial like this .But when I roslaunch the move_base.launch ,I ran into an error.It says , I know maybe something is wrong with costmap_common_params.yaml setting "footprint:[[x0,y0],[x1,y1]...[xn,yn]]".But I donot know how to solve the problem.Can anyone help me ??? I add the costmap_common_params.yaml: |
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2014-06-08 21:58:50 -0500 | commented answer | move_base crashed when call clear_costmaps service And I thought maybe calling clear costmaps periodically can solve the problem.Then the error occured like I have described above. Is there another way to solve the previous problem? |
2014-06-08 21:55:34 -0500 | commented answer | move_base crashed when call clear_costmaps service Thank you very much for your answer,Michael.The problem I came across is described here. http://answers.ros.org/question/172915/why-the-costmaps-dont-clear-obstacles-in-time-when-using-move_base-package/ |
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2014-06-06 11:04:20 -0500 | asked a question | move_base crashed when call clear_costmaps service I download the latest updated navigation package from github.And I come across a problem .move_base crashed when I call clear_costmaps service at high rate,such as 2Hz. below is the error infomation: Has anyone met the problem before?Any advice will be appreciated! |
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2014-06-05 22:37:43 -0500 | asked a question | why the costmaps don't clear obstacles in time when using move_base package? Hello all, I am using gmapping and move_base to navigate and generate a map.But I ran into a problem.Becaust of the interference of external factors to laser(URG04LX),the map may take several points as obstacles.But with the robot moving ,the map updates and the points (fake obstacles) are cleared.But the costmap donot clear the points in time ,even several minutes after the map have already cleared those points.Picture 1 is the costmap and Picture2 is the map at the same time.As we can see ,the costmap take those yellow points as obstacles including those around the robot which actually has already been cleared on the map.As a result the robot was stuck and can't rotate. I donot know if I have something wrong with configuration of costmap,so I paste the files below. base_local_planner_params.yaml: costmap_common_params.yaml: global_costmap_params.yaml: local_costmap_params.yaml: move_base.launch: Has anyone met the problem before?Any advice will be appreciated.Thank you very much. Yuichi |
2014-06-05 03:26:16 -0500 | commented question | Could not clear the obstacle_layer of costmap_2d package in ros hydro Hi ,tl20003 ,I am coming across the same problem with you now .And I have tried almost all the ways that proposed by others,but in vain.Have you worked out the problem? |
2014-05-26 16:32:12 -0500 | commented answer | while using hector_object_tracker,I run into a warning:project_objects is true, but GetDistanceToObstacle service is not (yet) available That's right!Thank you very much! |
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