Book Image

Mastering IOT

By : Colin Dow, Perry Lea
Book Image

Mastering IOT

By: Colin Dow, 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. We’ll begin our journey with an introduction to Raspberry Pi and quickly jump right into Python programming. We’ll learn all concepts through multiple projects, and then reinforce our learnings by creating an IoT robot car. We’ll examine modern sensor systems and focus on what their power and functionality can bring to our system. We’ll also gain insight into cloud and fog architectures, including the OpenFog standards. The Learning Path will conclude by discussing three forms of prevalent attacks and ways to improve the security of our IoT infrastructure. By the end of this Learning Path, we will have traversed the entire spectrum of technologies needed to build a successful IoT system, and will have the confidence to build, secure, and monitor our IoT infrastructure. This Learning Path includes content from the following Packt products: Internet of Things Programming Projects by Colin Dow Internet of Things for Architects by Perry Lea
Table of Contents (34 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Free Chapter
1
The IoT Story
Index

Sensor fusion


One aspect that needs consideration with all the sensor devices described in this chapter is the concept of sensor fusion. Sensor fusion is the process of combining several different kinds of sensor data to reveal more about context than a single sensor can provide. This is important in the IoT space, since a single thermal sensor has no notion of what causes a rapid temperature change. However, when combined with data from other sensors nearby that look at PIR motion detection and light intensity, an IoT system could discern that a large number of people are congregating in a certain area while the sun is shining, and could then make the decision to increase air circulation in a smart building. A simple thermal sensor only records the current temperature value, and has no contextual awareness that the heat is rising due to people congregating and sunlight shining.   

With time-correlated data from multiple sensors (edge and cloud), processing can make better decisions based...