Book Image

IoT and Edge Computing for Architects - Second Edition

By : Perry Lea
Book Image

IoT and Edge Computing for Architects - Second Edition

By: Perry Lea

Overview of this book

Industries are embracing IoT technologies to improve operational expenses, product life, and people's well-being. An architectural guide is needed 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 IoT devices. IoT and Edge Computing for Architects, Second Edition encompasses the entire spectrum of IoT solutions, from IoT sensors to the cloud. It examines modern sensor systems, focusing on their power and functionality. It also looks at communication theory, paying close attention to near-range PAN, including the new Bluetooth® 5.0 specification and mesh networks. Then, the book explores IP-based communication in LAN and WAN, including 802.11ah, 5G LTE cellular, Sigfox, and LoRaWAN. It also explains edge computing, routing and gateways, and their role in fog computing, as well as the messaging protocols of MQTT 5.0 and CoAP. With the data now in internet form, you'll get an understanding of cloud and fog architectures, including the OpenFog standards. The book wraps up the analytics portion with the application of statistical analysis, complex event processing, and deep learning models. The book then concludes by providing a holistic view of IoT security, cryptography, and shell security in addition to software-defined perimeters and blockchains.
Table of Contents (17 chapters)
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Sensing devices

We begin by focusing on the sensing or input devices. These come in a variety of forms and complexities, from simple thermocouples to advanced video systems. One reason IoT is a large growth area is the fact that these sensing systems have been reduced in size and cost substantially, with advances in semiconductor fabrication and micromachining.

Thermocouples and temperature sensing

Temperature sensors are the most prevalent form of sensor products. They exist just about everywhere. From smart thermostats to IoT cold storage logistics, from refrigerators to industrial machinery, they are prevalent and most likely the first sensing device you will be exposed to in an IoT solution.


A thermocouple (or TC) is a form of temperature-sensing apparatus that doesn't rely on an excitation signal to operate. Therefore, they produce very small signals (often microvolts in amplitude). Two wires of two different materials meet where a...