Ingenieur Vol 77 Jan-Mar 2019 ingenieur 2019 Jan-March | Page 14

INGENIEUR PURPOSE OF BUILDINGS About one million years ago, man began venturing into caves, primarily to seek shelter from the harsh weather, safety from wild animals and space for communal purposes. The discovery of fire that kept man warm, provided protection from wild animals and enabled cooking activities. Fast forward to today, Wikipedia describes buildings as serving several societal needs, “primarily as shelter from the weather, security, living space, privacy, to store belongings, and to comfortably live and work.” In today’s context, electricity takes the place of fire as an enabler. From caves to buildings, in one million years, man’s needs have remained pretty much the same. This is encapsulated in Abraham Maslow’s hierarchy of needs. Today’s buildings serve to fulfil man’s physiological needs by providing shelter, with comfortable indoor weather and environment controlled by the air-conditioning and lighting systems. Safety and security is provided by the fire systems with CCTV and card access for auto doors/gates. The telephony, network and lift systems on the other hand, enable communication and connectivity within the social community for collaborative activities. 6 12 VOL 2019 VOL 77 55 JANUARY–MARCH JUNE 2013 DEFINITIONS OF INTERNET OF THINGS (IoT) The Internet of Things, or IoT, is a system of inter-related computing devices, mechanical and digital machines, objects, animals or people that are provided with unique identifiers (UIDs) and the ability to transfer data over a network without requiring human- to-human or human-to-computer interaction (Whatls.com). The Internet of things is the network of devices, vehicles, and home appliances that contain electronics, software, actuators, and connectivity which allows these things to connect, interact and exchange data (Wikipedia). 4 th INDUSTRIAL REVOLUTION The automation and data exchange initiatives that began in the manufacturing industry have turned into a full-blown revolution cutting across other good-producing sectors including agriculture, mining, construction as well as service-producing sectors such as transportation, communication, utilities, finance, insurance, healthcare, and real estate. Automation is being increasingly employed, with more robotics taking over routine and labour- intensive tasks. Digitalisation is rife, with the use of apps and mobile devices across all workstreams. Cyber-physical systems enabled by the Internet of things and cloud computing are making drastic changes to the landscape. Industry 4.0 is the next step in evolution for buildings. Most buildings today, already have some form of Building Management System (BMS) or Building Automation System (BAS) which enables monitoring and control of the building remotely, without having to station people on site. Most of the time, this is limited to the air-conditioning and lighting systems. The advent of the Internet of things takes this one-step further by connecting these systems as well as other disparate systems in the building to the Internet, literally putting the entire building online.