Would I able to load a Gazebo world as a training model into rlSimulinkEnv function ?

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Jen-Yu Lee
Jen-Yu Lee 2021-2-18
评论： Vishal Jadhav 2022-7-11
Hi, I'm trying to use Simulink to apply turtlebot3 to do deep reinforcement learning simulation, the tutorial I'm following is from Robotics Arena DRL for Walking Robots.
I face a problem is that I want to load the Gazebo model such like turtlebot3_world.world instead of the walking robot model, but I didn't find any tutorial about it.
Here is the code at the file createWalkingAgent2D.m
% Environment
mdl = 'walkingRobotRL2D';
load_system(mdl);
blk = [mdl,'/RL Agent'];
env = rlSimulinkEnv(mdl,blk,observationInfo,actionInfo);
If there is anyone knows it, please give me some advicess. Thank you!!
  1 个评论
Vishal Jadhav
Vishal Jadhav 2022-7-11
Hello Jen,
I am trying to use Matlab script to apply TB3 to deep reinforcemnet learning simulation. Can you share how you defined custom gazebo world as env for this project? I have my custom world and python script for resetting world in ROS-Gazebo but I need to do that with MATLAB.

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采纳的回答

Cam Salzberger
Cam Salzberger 2021-2-18
Hello Jen-Yu,
Loading a Simulink model that simulates a robot is very different than loading a Gazebo world. There is currently no capability for loading a Gazebo model inside of Simulink and accessing data from it directly.
You can, however, run Gazebo externally and load the model into that. You can then communicate with Gazebo using Gazebo Co-Simulation, ROS, or ROS 2, and feed the data received from that into your reinforcement learning algorithm. Gazebo Co-Simulation will provide a higher level of control over the Gazebo simulation, and may have more consistent performance. It may be easier to get started with ROS or ROS 2, though, since TurtleBot3 is set up to use it already.
-Cam
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Emmanouil Tzorakoleftherakis
Emmanouil Tzorakoleftherakis 2021-2-19
If you don't use Simulink, you don't need to use rlSimulinkEnv. But you would need to create a custom environment in MATLAB following directions here.

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