Book Image

ROS Robotics By Example, Second Edition - Second Edition

By : Carol Fairchild, Lentin Joseph, Dr. Thomas L. Harman
Book Image

ROS Robotics By Example, Second Edition - Second Edition

By: Carol Fairchild, Lentin Joseph, Dr. Thomas L. Harman

Overview of this book

ROS is a robust robotics framework that works regardless of hardware architecture or hardware origin. It standardizes most layers of robotics functionality from device drivers to process control and message passing to software package management. But apart from just plain functionality, ROS is a great platform to learn about robotics itself and to simulate, as well as actually build, your first robots. This does not mean that ROS is a platform for students and other beginners; on the contrary, ROS is used all over the robotics industry to implement flying, walking and diving robots, yet implementation is always straightforward, and never dependent on the hardware itself. ROS Robotics has been the standard introduction to ROS for potential professionals and hobbyists alike since the original edition came out; the second edition adds a gradual introduction to all the goodness available with the Kinetic Kame release. By providing you with step-by-step examples including manipulator arms and flying robots, the authors introduce you to the new features. The book is intensely practical, with space given to theory only when absolutely necessary. By the end of this book, you will have hands-on experience on controlling robots with the best possible framework.
Table of Contents (18 chapters)
ROS Robotics By Example Second Edition
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
Index

Chapter 9. Flying a Mission with Crazyflie

Robots are fun and sometimes frustrating to program. Quadrotors are particularly difficult to control due to the number of flight factors and the complexity of flight programs required to manage these factors. Quadrotors are currently being tested for surveillance cameras and delivery vehicles for packages and fast food. In this chapter, we will explore the subject of programming quadrotors to fly to specific destinations. This application may be handy for delivering coffee and paperwork around the office. We will begin by using a barebones quadrotor and an inexpensive depth camera to sense the quadrotor's location.

This chapter will highlight the use of ROS communication to coordinate the locations of the quadrotor and the target. A Kinect sensor will be used to visualize the environment and the position of the quadrotor in it to coordinate its landing at a marked location. ROS tf transforms and pose messages will be generated to identify the reference...