Book Image

Internet of Things for Architects

By : Perry Lea
Book Image

Internet of Things for Architects

By: Perry Lea

Overview of this book

The Internet of Things (IoT) is the fastest growing technology market. Industries are embracing IoT technologies to improve operational expenses, product life, and people's well-being. An architectural guide is necessary if you want to traverse the spectrum of technologies needed to build a successful IoT system, whether that's a single device or millions of devices. This book encompasses the entire spectrum of IoT solutions, from sensors to the cloud. We start by examining modern sensor systems and focus on their power and functionality. After that, we dive deep into communication theory, paying close attention to near-range PAN, including the new Bluetooth® 5.0 specification and mesh networks. Then, we explore IP-based communication in LAN and WAN, including 802.11ah, 5G LTE cellular, Sigfox, and LoRaWAN. Next, we cover edge routing and gateways and their role in fog computing, as well as the messaging protocols of MQTT and CoAP. With the data now in internet form, you'll get an understanding of cloud and fog architectures, including the OpenFog standards. We wrap up the analytics portion of the book with the application of statistical analysis, complex event processing, and deep learning models. Finally, we conclude by providing a holistic view of the IoT security stack and the anatomical details of IoT exploits while countering them with software defined perimeters and blockchains.
Table of Contents (18 chapters)
Title Page
Packt Upsell
Contributors
Preface
Free Chapter
1
The IoT Story

MQTT


The IBM Websphere Message Queue technology was first conceived in 1993 to address problems in independent and non-concurrent distributed systems to securely communicate. A derivative of the WebSphere Message Queue was authored by Andy Stanford-Clark and Arlen Nipper at IBM in 1999 to address the particular constraints of connecting remote oil and gas pipelines over a satellite connection. That protocol became known as the MQTT. The goals of this IP-based transport protocol are:

  • It must be simple to implement
  • To provide a form of quality of service
  • To be very lightweight and bandwidth efficient
  • To be data agnostic
  • To have continuous session awareness
  • To address security issues

MQTT provides for these requirements. A way to think of the protocol is best defined by the standard body (mqtt.org) which presents a very well-defined summary of the protocol:

"MQTT stands for MQ Telemetry Transport. It is a publish/subscribe, extremely simple and lightweight messaging protocol, designed for constrained...