Book Image

The Azure IoT Handbook

By : Dan Clark
Book Image

The Azure IoT Handbook

By: Dan Clark

Overview of this book

With the rise of cloud-based computing, deploying IoT systems has become more cost-effective for businesses. This transformation has led to developers and architects shouldering the responsibility of creating, managing, and securing these systems, even if they are new to the IoT technology. The Azure IoT Handbook is a comprehensive introduction to quickly bring you up to speed in this rapidly evolving landscape. Starting with the basic building blocks of any IoT system, this book guides you through mobile device management and data collection using an IoT hub. You’ll explore essential tools for system security and monitoring. Following data collection, you’ll delve into real-time data analytics using Azure Stream Analytics and view real-time streaming on a Power BI dashboard. Packed with real-world examples, this book covers common IoT use as well. By the end of this IoT book, you’ll know how to design and develop IoT solutions leveraging intelligent edge-to-cloud technologies implemented on Azure.
Table of Contents (18 chapters)
1
Part 1: Capturing Data from Remote Devices
7
Part 2: Processing the Data
12
Part 3: Processing the Data

Message routing queries

In the context of an IoT hub, routing refers to the process of directing and forwarding incoming messages from IoT devices to different endpoints or destinations within the IoT ecosystem. IoT Hub is a cloud-based service that acts as a central hub for managing and communicating with many connected devices.

Routing in an IoT hub enables you to define rules and conditions based on the message content or device metadata and then automatically route the messages to appropriate endpoints. These endpoints can include other Azure services, custom applications, storage systems, databases, or even other IoT hubs.

Here’s a high-level overview of how routing works in an IoT hub:

  1. The device sends a message: An IoT device connected to the IoT hub sends a telemetry message, event, or state update to the hub.
  2. Routing rules: The IoT hub evaluates the routing rules defined by the user. These rules specify conditions and filters based on message properties...