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TopThe Internet Of Things
Radio Frequency Identification (RFID) and Wireless Sensor Networks (WSN) have been in existence now for over two decades, but advances towards full use of the Internet of Things (IoT) offer much more and also pose more social challenges. There are many definitions of the Internet of Things and the CASAGRAS project sees it like this: “A global network infrastructure, linking physical and virtual objects through the exploitation of data capture and communication capabilities. This infrastructure includes existing and evolving Internet and network developments. It will offer specific object-identification, sensor and connection capability as the basis for the development of independent cooperative services and applications. These will be characterised by a high degree of autonomous data capture, event transfer, network connectivity and interoperability.” (CASAGRAS 2014:10). It can thus be seen as a network of physically connected objects in which embedded processing nodes with communication capability offer a means of networked functionality and communications. The goal is to make use of computer sensor information without any need for human intervention.
SAP Research defines the IoT like this: “A world where physical objects are seamlessly integrated into the information network, and where the physical objects can become active participants in business processes. Services are available to interact with these ‘smart objects’ over the Internet, query and change their state and any information associated with them, taking into account security and privacy issues.” (Haller 2009:12)
Pererez et al. (2014) note that the Internet of Things initially focused primarily on managing information through the use of RFID tags, to which Lazarescu (2014) adds Wireless Sensor Networks (WSN) as another key enabler, but that it now spans a wide variety of devices with different computing and communication capabilities. These are generically termed networked embedded devices (NED) in which sensors and actuators blend with the environment to share information across platforms and offers the possibility of measuring, inferring and understanding various environmental indicators (Gubbia, Buyyab, Marusic and Palaniswami 2013).