Book Image

Hands-On Azure Digital Twins

By : Alexander Meijers
Book Image

Hands-On Azure Digital Twins

By: Alexander Meijers

Overview of this book

In today’s world, clients are using more and more IoT sensors to monitor their business processes and assets. Think about collecting information such as pressure in an engine, the temperature, or a light switch being turned on or off in a room. The data collected can be used to create smart solutions for predicting future trends, creating simulations, and drawing insights using visualizations. This makes it beneficial for organizations to make digital twins, which are digital replicas of the real environment, to support these smart solutions. This book will help you understand the concept of digital twins and how it can be implemented using an Azure service called Azure Digital Twins. Starting with the requirements and installation of the Azure Digital Twins service, the book will explain the definition language used for modeling digital twins. From there, you'll go through each step of building digital twins using Azure Digital Twins and learn about the different SDKs and APIs and how to use them with several Azure services. Finally, you'll learn how digital twins can be used in practice with the help of several real-world scenarios. By the end of this book, you'll be confident in building and designing digital twins and integrating them with various Azure services.
Table of Contents (25 chapters)
1
Section 1: Azure Digital Twin Essentials
4
Section 2: Getting Started with Azure Digital Twins
11
Section 3: Digital Twins Advanced Techniques
19
Section 4: Digital Twin Implementations in Real-world Scenarios

Chapter 7: Querying Digital Twins

From reading this book, you should now have mastered managing digital twin models and their relationships. In this chapter, we will explain the query language and how to query the data from these models and their relationships. We will start by setting up a usable set demo graph in an Azure Digital Twins instance. After that, we will execute several different types of queries using Azure Digital Twins Explorer and discuss the results. Finally, we will examine several examples of using the .NET SDK to query using C# code.

In this chapter, we will learn how to query and filter models and relationships of an Azure Digital Twins instance using Azure Digital Twins Explorer, and through .NET code.

The following sections can be found in this chapter:

  • Setting up a demo graph
  • Basic querying
  • Querying by model
  • Querying relationships
  • Filtering results
  • Querying using code
  • Querying asynchronous calls using code