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Robot Operating System Cookbook

You're reading from   Robot Operating System Cookbook Over 70 recipes to help you master advanced ROS concepts

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Product type Paperback
Published in Jun 2018
Publisher Packt
ISBN-13 9781783987443
Length 484 pages
Edition 1st Edition
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Author (1):
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Kumar Bipin Kumar Bipin
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Kumar Bipin
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Table of Contents (12) Chapters Close

Preface 1. Getting Started with ROS FREE CHAPTER 2. ROS Architecture and Concepts I 3. ROS Architecture and Concepts – II 4. ROS Visualization and Debugging Tools 5. Accessing Sensors and Actuators through ROS 6. ROS Modeling and Simulation 7. Mobile Robot in ROS 8. The Robotic Arm in ROS 9. Micro Aerial Vehicles in ROS 10. ROS-Industrial (ROS-I) 11. Other Books You May Enjoy

Understanding the ROS nodelets

ROS provides nodelets as an execution unit; these are a type of ROS node that allow you to run multiple nodes in an umbrella of a single process. They correspond to threads and processes in the Linux system, and they're called threaded nodes. These could communicate with each other efficiently without overloading the network transport layer between two nodes. Moreover, these threaded nodes can also communicate with external nodes.

In the ROS framework, nodelets are used when the volume of data transferred among nodes is very high, for example, when transferring data from laser sensors or when a camera points to an object like a cloud, respectively.

Getting ready

In the previous section,...

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