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

Chapter 10. Cloud and Fog Topologies

Without the cloud, the IoT growth and market would be non-existent. Essentially, billions of endpoint devices that were historically dumb and not connected would need to manage themselves without the ability to share data or aggregate data. Billions of small embedded systems add no marginal value for customers. The value of the IoT is in the data it produces—not at a single endpoint but in thousands or millions of endpoints. The cloud provides the ability to have simple sensors, cameras, switches, beacons, and actuators participate in a common language with each other. The cloud is the common denominator of the data currency.

The ubiquitous cloud metaphor refers to an infrastructure of computing services that are generally on-demand. The pool of resources (computing, networking, storage, and the associated software services) can dynamically scale up or down based on load average or quality of service. Clouds are typically large data centers that provide...