Book Image

ROS Programming: Building Powerful Robots

By : Anil Mahtani, Aaron Martinez, Enrique Fernandez Perdomo, Luis Sánchez, Lentin Joseph
Book Image

ROS Programming: Building Powerful Robots

By: Anil Mahtani, Aaron Martinez, Enrique Fernandez Perdomo, Luis Sánchez, Lentin Joseph

Overview of this book

This learning path is designed to help you program and build your robots using open source ROS libraries and tools. We start with the installation and basic concepts, then continue with the more complex modules available in ROS, such as sensor and actuator integration (drivers), navigation and mapping (so you can create an autonomous mobile robot), manipulation, computer vision, perception in 3D with PCL, and more. We then discuss advanced concepts in robotics and how to program using ROS. You'll get a deep overview of the ROS framework, which will give you a clear idea of how ROS really works. During the course of the book, you will learn how to build models of complex robots, and simulate and interface the robot using the ROS MoveIt motion planning library and ROS navigation stacks. We'll go through great projects such as building a self-driving car, an autonomous mobile robot, and image recognition using deep learning and ROS. You can find beginner, intermediate, and expert ROS robotics applications inside! It includes content from the following Packt products: ? Effective Robotics Programming with ROS - Third Edition ? Mastering ROS for Robotics Programming ? ROS Robotics Projects
Table of Contents (37 chapters)
Title page
Copyright and Credits
Packt Upsell
Preface
Bibliography
Index

Understanding the Moveit! configuration of a universal robotic arm


The changes that we need to make in the industrial MoveIt! configuration are almost the same as the arm we already worked with.

First, we have to define the controller.yaml file, which has to create inside ur10_moveit_config/config. Here is the definition of the controller.yaml of UR-10:

controller_list: 
  - name: "" 
    action_ns: follow_joint_trajectory 
    type: FollowJointTrajectory 
    joints: 
      - shoulder_pan_joint 
      - shoulder_lift_joint 
      - elbow_joint 
      - wrist_1_joint 
      - wrist_2_joint 
      - wrist_3_joint

The kinematics.yaml file inside the config folder contains the IK solvers used for this arm; we can use the following IK solvers. The contents of this file are given as follows:

#manipulator: 
#  kinematics_solver: ur_kinematics/UR10KinematicsPlugin 
#  kinematics_solver_search_resolution: 0.005 
#  kinematics_solver_timeout: 0.005 
#  kinematics_solver_attempts: 3 
manipulator: 
  kinematics_solver...