Abstract

This article provides an overview of sensors commonly used in low-cost, low-power systems, exploring key concepts in IoT, Big Data, and the operation of smart sensory devices. These terms are closely related to Telemedicine & E-health and specifically they are the tools that shape the methods and machines used in there areas. As such, the article defines sensors, their characteristics, and the technological advancements leading to the rise of ‘smart sensors.’ This is the first step in understanding the brick and mortar of the machines used. Additionally, the paper discusses mini-computing devices that interface with sensors, highlighting their capabilities beyond simple actuation. This is the second step to understand these devices and their components as these devices are affordable and energy-efficient, making them ideal for instrumentation of telemedicine and e-health applications, such as system monitoring and prototype validation. The article aims to educate graduates on integrating various types of sensors, understanding how they operate, and applying them in wireless sensor networks, IoT systems, and Big Data edge node computing in real-world scenarios so they can understand how these are fused into eHealth, telehealth, telemedicine and the revolutionization of the healthcare industry.

Keywords:Minicomputer; Signal processing sensor devices; IoT (Internet of Things); Low-power IoT systems; Sensors; Measurements; Instrumentation; Telehealth; Telemedicine; Healthcare sensors; Healthcare IoT