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ROS Robotics Projects

ROS Robotics Projects

By : Lentin Joseph
4.1 (11)
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ROS Robotics Projects

ROS Robotics Projects

4.1 (11)
By: Lentin Joseph

Overview of this book

Robot Operating System is one of the most widely used software frameworks for robotic research and for companies to model, simulate, and prototype robots. Applying your knowledge of ROS to actual robotics is much more difficult than people realize, but this title will give you what you need to create your own robotics in no time! This book is packed with over 14 ROS robotics projects that can be prototyped without requiring a lot of hardware. The book starts with an introduction of ROS and its installation procedure. After discussing the basics, you’ll be taken 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 ROS robotics applications for beginner, intermediate, and expert levels inside! This book will be the perfect companion for a robotics enthusiast who really wants to do something big in the field.
Table of Contents (13 chapters)
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Simulating GPS in Gazebo

In this section, we will see how to simulate a GPS sensor in Gazebo. As you know, GPS is one of the essential sensors in a self-driving car. You can start a GPS simulation using the following command:

$ roslaunch sensor_sim_gazebo gps.launch

Now, you can list out the topic and find the GPS topics published from the Gazebo plugin. Here is a list of topics from the GPS plugin:

Simulating GPS in Gazebo

Figure 20: List of topics from the Gazebo GPS plugin

You can echo the /gps/fix topic to confirm that the plugin is publishing the values correctly.

You can use the following command to echo this topic:

$ rostopic echo /gps/fix

Simulating GPS in Gazebo

Figure 21: Values published to the /gps/fix topic

If you look at the code in sensor_sim_gazebo/urdf/gps.xacro, you will find <plugin name="gazebo_ros_gps" filename="libhector_gazebo_ros_gps.so">; these plugins belong to the hector_gazebo_ros_plugins package, which we installed at the beginning of the sensor interfacing. We can set all parameters...

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