Book Image

Mastering ROS for Robotics Programming

By : Lentin Joseph
Book Image

Mastering ROS for Robotics Programming

By: Lentin Joseph

Overview of this book

The area of robotics is gaining huge momentum among corporate people, researchers, hobbyists, and students. The major challenge in robotics is its controlling software. The Robot Operating System (ROS) is a modular software platform to develop generic robotic applications. This book discusses the advanced concepts in robotics and how to program using ROS. It starts with 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. After discussing robot manipulation and navigation in robots, you will get to grips with the interfacing I/O boards, sensors, and actuators of ROS. One of the essential ingredients of robots are vision sensors, and an entire chapter is dedicated to the vision sensor, its interfacing in ROS, and its programming. You will discuss the hardware interfacing and simulation of complex robot to ROS and ROS Industrial (Package used for interfacing industrial robots). Finally, you will get to know the best practices to follow when programming using ROS.
Table of Contents (19 chapters)
Mastering ROS for Robotics Programming
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Working with robot pick and place task using MoveIt!


We can do pick and place in various ways. One is by using pre defined sequences of joint values; in this case, we put the object in a predefined position and move the robot into that position by providing direct joint values or forward kinematics. Another method of pick and place is by using inverse kinematics without any visual feedback; in this case, we command the robot to go to an X,Y, and Z position with respect to the robot, and by solving IK, the robot can reach that position and pickup that object. One more method is vision assisted pick and place; in this case, a vision sensor is used to identify the object's position and the arm goes to that location by solving IK and picks the object.

In this section, we will demonstrate a pick and place in which we will give the grasping object position and the robot will move to that coordinate and pick the object. It can be tied up with vision in such a way that we need to tell the object...