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mpc_gazebo's Introduction

Four Wheel Skid Drive using MPC

Four Wheel Skid Drive Simulation in gazebo using linearized unicyclic Model Prodective Control.

Rendered Image


Simulation

cd catkin_ws/src
git clone https://github.com/rishabhdevyadav/MPC_Gazebo
cd ..
catkin_make
source devel/setup.zsh

# Finally launch the simulation
roslaunch skid4wd_description sim_with_controller.launch

The simulation is started in paused state. Resume the simulation by clicking on the play button on the lower panel in Gazebo.


How To Run

  1. Terminal 1st:-
cd catkin_ws
roslaunch skid4wd_description sim_with_controller.launch
  1. Terminal 2nd:-
cd catkin_ws/
source devel/setup.zsh
roscd skid4wd_control
cd scripts/V0_working
python3 MPC.py
  1. Terminal 3rd:-
cd catkin_ws/
source devel/setup.zsh
roscd skid4wd_control
cd scripts/V0_working
python control.py

Note:- For MPC optimization, "cvxpy" has been used which works only with python3, while ROS worls in python2 by default. So "Python Socket" has been used to communicate between MPC.py and control.py.

MPC.py receive current state [x,y,yaw,v,omega] and send new [v, omega].

mpc_gazebo's People

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Rishabh Dev Yadav avatar

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mpc_gazebo's Issues

Error with roslaunch skid4wd_description sim_with_controller.launch

Hi! Thank you for your work. When I type roslaunch skid4wd_description sim_with_controller.launch, it returns to me the following errors:
[ERROR] [1648663077.645835511]: No p gain specified for pid. Namespace: /skid4wd/gazebo_ros_control/pid_gains/joint_front_left
[ERROR] [1648663077.646878641]: No p gain specified for pid. Namespace: /skid4wd/gazebo_ros_control/pid_gains/joint_front_right
[ERROR] [1648663077.648027281]: No p gain specified for pid. Namespace: /skid4wd/gazebo_ros_control/pid_gains/joint_rear_left
[ERROR] [1648663077.653682387]: No p gain specified for pid. Namespace: /skid4wd/gazebo_ros_control/pid_gains/joint_rear_right

And, when i start the simulation in Gazebo, the robot doesn't move. Why?
Thank you

Hello

image
Can you tell me how can I use robot steering?I do not have this window

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