2020-09-24
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A smart TV, sometimes referred to as connected TV or hybrid TV, is a television set with integrated Internet and interactive "Web 2.0" features. Smart TV is a technological convergence between computers and flatscreen television sets and set-top boxes. Besides the traditional functions of television sets and set-top boxes provided through traditional broadcasting media, these devices can also provide Internet TV, online interactive media, over-the-top content (OTT), as well as on-demand streaming media, and home networking access.
Smart TV should not be confused with Internet TV, IPTV or Web television. Internet TV refers to receiving television content over the Internet instead of traditional systems (terrestrial, cable and satellite) (although Internet itself is received by these methods). IPTV is one of the Internet television technology standards for use by television broadcasters. Web television is a term used for programs created by a wide variety of companies and individuals for broadcast on Internet TV.
In smart TVs, the operating system is preloaded or is available through the set-top box. The software applications or "apps" can be preloaded into the device, or updated or installed on demand via an app store or marketplace, in a similar manner to how the apps are integrated in modern smartphones.
The technology that enables smart TVs is also incorporated in external devices such as set-top boxes and some Blu-ray players, game consoles, digital media players, hotel television systems, smartphones, and other network-connected interactive devices that utilize television-type display outputs. These devices allow viewers to find and play videos, movies, TV shows, photos and other content from the Web, cable or satellite TV channel, or from a local storage device.
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The BT Smart Hub (formerly BT Home Hub) is a family of wireless residential gateway router modems distributed by BT for use with their own products and services and those of wholesale resellers (i.e. LLUs) but not with other Internet services. Since v 5 Home/Smart Hubs support the faster Wi-Fi 802.11ac standard, in addition to the 802.11b/g/n standards. All models of the Home Hub prior to Home Hub 3 support VoIP Internet telephony via BT's Broadband Talk service, and are compatible with DECT telephone handsets. Since the Home Hub 4, all models have been dual band (i.e. both 2.4 GHz and 5 GHz).
The BT Home Hub works with the now defunct[3] BT Fusion service and with the BT Vision video on demand service.[4] The BT Home Hub 1.0, 1.5 and 2.0 devices connect to the Internet using a standard ADSL connection. The BT Home Hub 3 and 4 models support PPPoA for ADSL and PPPoE for VDSL2, in conjunction with an Openreach-provided VDSL2 modem to support BT's FTTC network (BT Infinity). Version 5 of the Home Hub, released in August 2013, includes a VDSL2 modem for fibre-optic connections. New firmware is pushed out to Home Hubs connected to the Internet automatically by BT.
The Home Hub 5 was followed on 20 June 2016 by the Smart Hub, a further development of the Home Hub sometimes referred to as "Home Hub 6".[5] It has more WiFi antennas than its predecessor, and a USB 3.0 rather than USB 2.0 port. It supports Wave 2 802.11ac WiFi, found on review to be 50% faster than non-Wave 2.
Home automation or domotics[1] is building automation for a home, called a smart home or smart house. A home automation system will control lighting, climate, entertainment systems, and appliances. It may also include home security such as access control and alarm systems.[2] When connected with the Internet, home devices are an important constituent of the Internet of Things.
A home automation system typically connects controlled devices to a central hub or "gateway". The user interface for control of the system uses either wall-mounted terminals, tablet or desktop computers, a mobile phone application, or a Web interface, that may also be accessible off-site through the Internet.
While there are many competing vendors, there are very few worldwide accepted industry standards and the smart home space is heavily fragmented.[3] Manufacturers often prevent independent implementations by withholding documentation and by litigation.
The home automation market was worth US$5.77 billion in 2013, predicted to reach a market value of US$12.81 billion by the year 2020
