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I am writing data of turtlebot movement, and I want to write a paper. How can I get the data?

asked 2019-01-09 00:39:17 -0500

saito gravatar image

Hello. I am a ROS beginner. I am doing SLAM of turtlebot 2 in the ubuntu 14.04, ros (indigo) personal computer environment.

I need the following data to write a paper. How can I get the data? (In navigation, I want data from RViz where I specified the goal point myself)

  1. The global map and the trajectory that the robot actually moved in the global map

  2. Movement distance and travel time from the start point to the goal point

  3. Data for making graphs of speed and distance, speed and time

that's all. What should I do?rosbag? Thank you.

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answered 2019-01-09 01:51:50 -0500

jayess gravatar image

updated 2019-01-09 01:54:34 -0500

You should record a rosbag of all your runs so that you can playback your data whenever you want, even if you can't use your robot. Plus, this has the added benefit of recording your trajectories and setpoints that you send to your robot as well. Then you can focus on visualizing and analyzing your data without any pressure of getting it right while doing an experiment.

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thank you!!I want to use rosbag to make robot destinations every time. However, it does not work if you record and play it with this. why?rosbag record /move_base_simple/goal

saito gravatar imagesaito ( 2019-01-09 03:18:52 -0500 )edit

Try

rosbag record -O subset /move_base_simple/goal

to record only a subset of topics and see the rosbag tutorials

jayess gravatar imagejayess ( 2019-01-09 03:28:05 -0500 )edit

You can certainly record. Looking at rostopic echo /move_base_simple/goal during playback. The topic has been submitted. However, the robot does not move.

saito gravatar imagesaito ( 2019-01-09 03:45:27 -0500 )edit

I don't understand what you mean. Did the data get recorded?

jayess gravatar imagejayess ( 2019-01-09 03:53:28 -0500 )edit

yes!and publish.however, turtlebot dont move.

saito gravatar imagesaito ( 2019-01-09 03:57:09 -0500 )edit

Ok, well that problem can't be answered without more information which would be out of scope for this question. You should create a new question for the new problem.

jayess gravatar imagejayess ( 2019-01-09 03:59:48 -0500 )edit

If this answered your question about recording the data, then can you please mark the answer as correct by clicking on the checkmark (✅)?

jayess gravatar imagejayess ( 2019-01-09 04:00:40 -0500 )edit

yea!!thanks!!

saito gravatar imagesaito ( 2019-01-09 04:29:26 -0500 )edit

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Asked: 2019-01-09 00:39:17 -0500

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Last updated: Jan 09