Lup Yuen Lee 李立源 @lupyuen@qoto.org

Wireless technologies are revolutionizing communications, with recent deployments, such as 5G, playing a key role in the future of the Internet of Things (IoT). Such progress is leading to an increasingly higher number of wirelessly connected devices. These require increased battery use and maintenance, consequently straining current powering solutions. Since most wireless systems rely on radiofrequency (RF) waves for communications and feature low-power technologies, it is increasingly feasible to develop and implement wireless power transfer solutions supported by RF. In this paper, a simultaneous wireless information and power transfer (SWIPT) solution targeting small mobile devices is presented. This solution uses beamforming to mitigate the path loss associated with the RF power propagation. It relies on an RF backscattering tracking algorithm to power moving devices. The feasibility to power wearable devices is demonstrated by tracking a walking individual (approximately 5 km/h) at a distance of 0.5 m while transferring a minimum of 6 dBm to a wearable device using 2 GHz RF signals. Simulations were used to determine the viability of such a solution to deliver useful power levels to a 1.2 × 1.4 m2 working area without exceeding specific absorption rate (SAR) limits.

Meshtastic is a mesh network system built on top of LoRa radio technology that can be used to exchange data and text messages in the absence of any other communications infrastructure.

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This book aims to sort out the clear logic of the development of machine learning-driven privacy preservation in IoTs, including the advantages and disadvantages, as well as the future directions in this under-explored domain. In big data era, an increasingly massive volume of data is generated and transmitted in Internet of Things (IoTs), which poses great threats to privacy protection. Motivated by this, an emer...

This book offers a basic understanding of the Internet of Things (IoT), its design issues and challenges for healthcare applications. It also provides details of the challenges of healthcare big data, role of big data in healthcare and techniques, and tools for IoT in healthcare. This book offers a strong foundation to a beginner. All technical details that include healthcare data collection unit, technologies and...

So, you are reading a book that aims to cover the field of recent innovations in network services and distributed systems. The book’s target audience includes university and technical college students, graduate engineers and teaching staff. If you are someone else, don’t worry, the topics covered may still be of interest to you!

Get to grips with key IoT aspects along with modern trends, architectures, and technologies that support IoT solutions, such as cloud computing, modern app architecture paradigms, and data analyticsKey Features Understand the big picture of designing production-grade IoT solutions from an industry expert Get up and running with the development and designing aspects of the Internet of Things Solve business pr...

The Product Security Verified Mark will tell you if that smart home device is secure.

Get started programming Rust applications for the Internet of Things (IoT). This book is a programming skills migration book that teaches you the Rust programming techniques most useful for IoT applications. You’ll step through from server to board development in creating a set of IoT applications.In Rust for the IoT, you’ll learn how to build a modern server-side application using Rust on the backend. Then you’ll...

As we kick off 2024, the IoT Analytics team has again evaluated last year’s main IoT developments in the global “Internet of Things” arena. This article highlights some general observations

The smart home year in review: Matter’s first year was a borderline disaster

We uncovered a novel multiplatform threat named “NKAbuse”. The malware utilizes NKN technology for data exchange between peers and equipped with both flooder and backdoor capabilities.

A community and blog for embedded software makers