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Module 2: Digital Twin (Gazebo/Unity)

Welcome to the Digital Twin module. In this module, you'll learn how to create simulation environments using Gazebo and Unity for robotics applications.

Learning Objectives​

By the end of this module, you will be able to:

  • Create and configure simulation environments
  • Model robot physics and sensor systems
  • Integrate with Gazebo simulation engine
  • Work with Unity for advanced visualization
  • Implement sensor simulation and data processing
  • Validate robot behaviors in simulation

Overview​

A digital twin is a virtual representation of a physical system. In robotics, simulation environments allow us to test algorithms, validate behaviors, and develop complex systems without requiring physical hardware. This module covers simulation tools including Gazebo for physics-based simulation and Unity for advanced visualization.

Topics Covered​

  • Simulation environments and physics engines
  • Gazebo integration with ROS 2
  • Robot modeling (URDF/SDF)
  • Sensor simulation (cameras, LIDAR, IMU)
  • Unity integration for advanced visualization
  • Simulation control and monitoring
  • Testing and validation in simulation

Prerequisites​

  • Understanding of ROS 2 concepts (Module 1)
  • Basic knowledge of physics and kinematics
  • Familiarity with 3D modeling concepts

Let's start by exploring Gazebo simulation and how to create your first robot model in simulation.