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Z-wave
Z-Wave is a wireless communications protocol used primarily for residential and commercial building automation. It is a mesh network using low-energy radio waves to communicate from device to device, allowing for wireless control of smart home devices, such as smart lights, security systems, thermostats, sensors, smart door locks, and garage door openers. The Z-Wave brand and technology are owned by Silicon Labs. Over 300 companies involved in this technology are gathered within the Z-Wave Alliance. Like other protocols and systems aimed at the residential, commercial, MDU and building markets, a Z-Wave system can be controlled from a smart phone, tablet, or computer, and locally through a smart speaker, wireless keyfob, or wall-mounted panel with a Z-Wave gateway or central control device serving as both the hub or controller. Z-Wave provides the application layer interoperability between home control systems of different manufacturers that are a part of its alliance. There is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sigma Designs
Sigma Designs was an American public corporation that designed and built high-performance system-on-a-chip semiconductor technologies for Internet-based set-top boxes, DVD players/recorders, high-definition televisions, media processors, digital media adapters, portable media players and home connectivity products. In addition to platform processing and home network hardware, Sigma Designs also offered engineering support services and customized integrated circuit development. The company developed products for the following connected media platforms: IPTV (video over IP) set-top boxes, TV media players (such as Blu-ray), HDTVs, multimedia players, digital media adapters, portable media players, and home networking products, such as HomePlug AV, HomePNA and G.hn. Sigma Designs owns the intellectual property and was one of two chip makers for the Z-Wave home control technology. Sigma had alliances with other technology companies, including Microsoft, and their products are found in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeotec
Aeotec Group GmbH is a home automation and electronics company based in Hamburg, Germany and is known as Aeotec. It had previously been known as Aeon Labs and had been headquartered in Silicon Valley, California. It was founded in 2016. Its range of products utilises the Zigbee and Z-Wave communications protocol, the latter being a technology to which Aeotec owns the European rights. The group appointed a new CEO, Daniel P Dykes, in late 2018 shortly prior to acquiring German electronics maker Popp & Co., a company itself founded in 1930 and also focused on smart home hardware development. The acquisition allowed Aeotec to move both its headquarters and research-and-development operations to Germany. Aeotec has partnerships with multiple solutions providers including Alarm.com, ADT, AT&T, Huawei, for whom Aeotec is a core connected home accessory provider, Orange S.A., and Telefónica. Products The majority of the company's products have been released under the company's ow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicon Labs
Silicon Laboratories, Inc. (Silicon Labs) is a fabless global technology company that designs and manufactures semiconductors, other silicon devices and software, which it sells to electronics design engineers and manufacturers in Internet of Things (IoT) infrastructure worldwide. It is headquartered in Austin, Texas, Austin, Texas, United States. The company focuses on microcontrollers (MCUs) and wireless System on a chip, system on chips (SoCs) and modules. The company also produces Solution stack, software stacks including firmware libraries and protocol-based software, and a free software development platform called Simplicity Studio. Silicon Labs was founded in 1996 and released its first product, an updated Data access arrangement, DAA design that enabled manufacturers to reduce the size and cost of a modem, two years later. During its first three years, the company focused on Radio frequency, RF and CMOS integration, and developed the world's first CMOS RF Frequency synth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GFSK
Frequency-shift keying (FSK) is a frequency modulation scheme in which digital information is transmitted through discrete frequency changes of a carrier signal. The technology is used for communication systems such as telemetry, weather balloon radiosondes, caller ID, garage door openers, and low frequency radio transmission in the VLF and ELF bands. The simplest FSK is binary FSK (BFSK). BFSK uses a pair of discrete frequencies to transmit binary (0s and 1s) information. With this scheme, the 1 is called the mark frequency and the 0 is called the space frequency. Modulating and demodulating Reference implementations of FSK modems exist and are documented in detail. The demodulation of a binary FSK signal can be done using the Goertzel algorithm very efficiently, even on low-power microcontrollers. Variations Multiple frequency-shift keying Continuous-phase frequency-shift keying In principle FSK can be implemented by using completely independent free-running oscillat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency-shift Keying
Frequency-shift keying (FSK) is a frequency modulation scheme in which digital information is transmitted through discrete frequency changes of a carrier signal. The technology is used for communication systems such as telemetry, weather balloon radiosondes, caller ID, garage door openers, and low frequency radio transmission in the VLF and ELF bands. The simplest FSK is binary FSK (BFSK). BFSK uses a pair of discrete frequencies to transmit binary (0s and 1s) information. With this scheme, the 1 is called the mark frequency and the 0 is called the space frequency. Modulating and demodulating Reference implementations of FSK modems exist and are documented in detail. The demodulation of a binary FSK signal can be done using the Goertzel algorithm very efficiently, even on low-power microcontrollers. Variations Multiple frequency-shift keying Continuous-phase frequency-shift keying In principle FSK can be implemented by using completely independent free-running oscillat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wi-Fi
Wi-Fi () is a family of wireless network protocols, based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. These are the most widely used computer networks in the world, used globally in home and small office networks to link desktop and laptop computers, tablet computers, smartphones, smart TVs, printers, and smart speakers together and to a wireless router to connect them to the Internet, and in wireless access points in public places like coffee shops, hotels, libraries and airports to provide visitors with Internet access for their mobile devices. ''Wi-Fi'' is a trademark of the non-profit Wi-Fi Alliance, which restricts the use of the term ''Wi-Fi Certified'' to products that successfully complete interoperability certification testing. the Wi-Fi Alliance consisted of more than 800 companies from around the world. over 3.05 billion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manchester Code
In telecommunication and data storage, Manchester code (also known as phase encoding, or PE) is a line code in which the encoding of each data bit is either low then high, or high then low, for equal time. It is a self-clocking signal with no DC component. Consequently, electrical connections using a Manchester code are easily galvanically isolated. Manchester code derives its name from its development at the University of Manchester, where the coding was used for storing data on the magnetic drums of the Manchester Mark 1 computer. Manchester code was widely used for magnetic recording on 1600 bpi computer tapes before the introduction of 6250 bpi tapes which used the more efficient group-coded recording. Manchester code was used in early Ethernet physical layer standards and is still used in consumer IR protocols, RFID and near-field communication. Features Manchester coding is a special case of binary phase-shift keying (BPSK), where the data controls the pha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modulation
In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the ''carrier signal'', with a separate signal called the ''modulation signal'' that typically contains information to be transmitted. For example, the modulation signal might be an audio signal representing sound from a microphone, a video signal representing moving images from a video camera, or a digital signal representing a sequence of binary digits, a bitstream from a computer. The carrier is higher in frequency than the modulation signal. In radio communication the modulated carrier is transmitted through space as a radio wave to a radio receiver. Another purpose is to transmit multiple channels of information through a single communication medium, using frequency-division multiplexing (FDM). For example in cable television which uses FDM, many carrier signals, each modulated with a different television channel, are transported through a sing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless LAN
A wireless LAN (WLAN) is a wireless computer network A wireless network is a computer network that uses wireless data connections between network nodes. Wireless networking is a method by which homes, telecommunications networks and business installations avoid the costly process of introducing c ... that links two or more devices using wireless communication to form a local area network (LAN) within a limited area such as a home, school, computer laboratory, campus, or office building. This gives users the ability to move around within the area and remain connected to the network. Through a Gateway (telecommunications), gateway, a WLAN can also provide a connection to the wider Internet. Wireless LANs based on the IEEE 802.11 standards are the most widely used computer networks in the world. These are commonly called Wi-Fi, which is a trademark belonging to the Wi-Fi Alliance. They are used for home and small office networks that link together laptop computers, printer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IEEE 802
IEEE 802 is a family of Institute of Electrical and Electronics Engineers (IEEE) standards for local area networks (LAN), personal area network (PAN), and metropolitan area networks (MAN). The IEEE 802 LAN/MAN Standards Committee (LMSC) maintains these standards. The IEEE 802 family of standards has had twenty-four members, numbered 802.1 through 802.24, with a working group of the LMSC devoted to each. However, not all of these working groups are currently active. The IEEE 802 standards are restricted to computer networks carrying variable-size packets, unlike cell relay networks, for example, in which data is transmitted in short, uniformly sized units called cells. Isochronous signal networks, in which data is transmitted as a steady stream of octets, or groups of octets, at regular time intervals, are also outside the scope of the IEEE 802 standards. The number 802 has no significance: it was simply the next number in the sequence that the IEEE used for standards projects. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ring (company)
Ring LLC is a home security and smart home company owned by Amazon. Ring manufactures home security products that incorporate outdoor surveillance cameras, including the Ring Video Doorbell smart doorbell, and hosts an app, Neighbors, for online social sharing of captured footage among users. Ring also provides video footage from its cameras and data from its Neighbors app to law enforcement agencies on request. Its police partnerships have been criticized by civil rights advocacy groups as building an invasive private surveillance network. Privacy concerns have increased since Mayor London Breed of San Francisco has supported ordinances that would allow city police to be able to access Ring footage at any time. History Pre-acquisition (2013–2017) In 2013, Ring was founded as Doorbot by Jamie Siminoff. Doorbot was crowdfunded via Christie Street, and raised 364,000, more than the $250,000 requested. In 2013, Siminoff and Doorbot appeared on an episode of the reality s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assa Abloy
Assa Abloy AB is a Swedish conglomerate whose offerings include products and services related to locks, doors, gates, and entrance automation. Related products and services include controlling access and confirming identities with keys, cards, tags, mobile, and bio-metric identity verification systems. The company was formed in 1994, when Assa AB was separated from Swedish security firm Securitas AB. Shortly thereafter, Assa AB merged with the Finnish high security lock manufacturer Abloy Oy (based in Joensuu, a subsidiary of the Finnish company Wärtsilä). The company was introduced to the Stockholm Stock Exchange later the same year. Assa Abloy has since made over 200 acquisitions including Yale lock, Chubb Locks, Medeco in the United States, Mul-T-Lock in Israel and Fichet-Bauche in France. Its two largest shareholders are Latour and Melker Schörling AB. Name Assa Abloy was founded at the merger of the two companies Assa and Abloy in 1994. Assa stands for August Stenman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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