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How to respawn kobuki or turtlebot on Gazebo

asked 2019-01-17 06:32:27 -0500

poor_hirose gravatar image

I'm trying reinforcement learning on Gazebo. If robot hit the wall,bumper sensor reaction. So, I wanna respawn robot in start position. Sorry my poor English.Do you have any idea?

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answered 2019-01-17 06:53:26 -0500

Delb gravatar image

There is a service available to do this, all you have to do is call it with :

rosservice call /gazebo/reset_simulation "{}"

Just note that if you use AMCL or gmapping you will have to reset those nodes too, the service will only reset the robot in the gazebo world (so in case of gmapping that won't reset the map ).

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Thank you! It can work in terminal.

I want to do the script in Python.I tried the following code:

service = rospy.ServiceProxy('/gazebo/reset_simulation', Empty)

but robot doesn't reset the map.

How can I run it in Python?

poor_hirose gravatar image poor_hirose  ( 2019-01-17 07:39:50 -0500 )edit

The type isn't Empty but std_srvs/Empty so that should be :

service = rospy.ServiceProxy('/gazebo/reset_simulation', std_srvs.srv.Empty)

Delb gravatar image Delb  ( 2019-01-17 07:48:37 -0500 )edit

I made a mistake.

service = rospy.ServiceProxy('/gazebo/reset_simulation', Empty)
    response = service()

I can reset the map with this code.

Thank you!!

poor_hirose gravatar image poor_hirose  ( 2019-01-18 01:49:45 -0500 )edit

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Asked: 2019-01-17 06:32:27 -0500

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Last updated: Jan 17 '19