The Internet of Things (IoT) is an interconnected network of objects which range from simple sensors to smartphones and tablets; it is a relatively novel paradigm that has been rapidly gaining ground in the scenario of modern wireless telecommunications with an expected growth of 25 to 50 billion of connected devices for 2020 Due to the recent rise of this paradigm, authors across the literature use inconsistent terms to address the devices present in the IoT, such as mobile device, smart device, mobile technologies or mobile smart device. Based on the existing literature, this paper chooses the term smart device as a starting point towards the development of an appropriate definition for the devices present in the IoT. This investigation aims at exploring the concept and main features of smart devices as well as their role in the IoT. This paper follows a systematic approach for reviewing compendium of literature to explore the current research in this field. It has been identified smart devices as the primary objects interconnected in the network of IoT, having an essential role in this paradigm. The developed concept for defining smart device is based on three main features, namely context-awareness, autonomy and device connectivity. Other features such as mobility and user-interaction were highly mentioned in the literature, but were not considered because of the nature of the IoT as a network mainly oriented to device-to-device connectivity whether they are mobile or not and whether they interact with people or not. What emerges from this paper is a concept which can be used to homogenise the terminology used on further research in the Field of digitalisation and smart technologies.

中文翻译：

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什么是智能设备？-物联网范式中的概念化

物联网（IoT）是一个互连的对象网络，其范围从简单的传感器到智能手机和平板电脑；它是一个相对新颖的范式，在现代无线通信中迅速发展，预计到2020年连接设备的数量将增长25到500亿个。解决物联网中存在的设备，例如移动设备，智能设备，移动技术或移动智能设备。根据现有文献，本文选择术语“智能设备”作为为物联网中存在的设备制定适当定义的起点。这项调查旨在探讨智能设备的概念和主要功能，以及它们在物联网中的作用。本文采用系统的方法来综述文献汇编，以探索该领域的当前研究。人们已经将智能设备确定为物联网网络中互连的主要对象，在这种范例中起着至关重要的作用。用于定义智能设备的已开发概念基于三个主要功能，即上下文感知，自治和设备连接。其他功能（例如移动性和用户交互性）在文献中被高度提及，但由于IoT作为主要面向设备到设备连接性的网络的性质而未被考虑，无论它们是否可移动以及它们是否与之交互人与否。