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Bluetooth beacons are hardware transmitters — a class of Bluetooth Low Energy (LE) devices that broadcast their identifier to nearby portable electronic devices. The technology enables smartphones, tablets and other devices to perform actions when in close proximity to a beacon. Bluetooth beacons use Bluetooth Low Energy proximity sensing to ...
Bluetooth Low Energy ( Bluetooth LE, colloquially BLE, formerly marketed as Bluetooth Smart [1]) is a wireless personal area network technology designed and marketed by the Bluetooth Special Interest Group (Bluetooth SIG) [2] aimed at novel applications in the healthcare, fitness, beacons, [3] security, and home entertainment industries. [4]
Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is limited to 2.5 milliwatts, giving it a very short range of up to 10 metres (33 ft).
Bluetooth Mesh is a computer mesh networking standard based on Bluetooth Low Energy that allows for many-to-many communication over Bluetooth radio. The Bluetooth Mesh specifications were defined in the Mesh Profile [1] and Mesh Model [2] specifications by the Bluetooth Special Interest Group (Bluetooth SIG).
Video conferencing profile (VCP): This profile is to be compatible with 3G-324M, and support videoconferencing over a 3G high-speed connection. Tempow Audio Profile (TAP): this new audio profile was presented at Bluetooth World 2017 in Santa Clara. It enables new audio functions, upgrading current A2DP profile.
802.11 WLAN, Bluetooth standards US$25 (active tags) microwave: 3.1–10 GHz Ultra wide band up to 200 m (700 ft) High Not defined Requires semi-active or active tags US$5 projected mm-wave: 24.125 GHz : ISM band worldwide 10–200 m (30–700 ft) High Not defined Requires semi-passive tags.
This Linksys WRT54GS, a combined router and Wi‑Fi access point, operates using the 802.11g standard in the 2.4 GHz ISM band using signalling rates up to 54 Mbit/s. For comparison, this Netgear product, a combined router and Wi‑Fi access point from 2013, uses the 802.11ac standard in the 5 GHz band, with signalling rates up to 6933 Mbit/s.
A sonar beacon is an underwater device which transmits sonic or ultrasonic signals for the purpose of providing bearing information. The most common type is that of a rugged watertight sonar transmitter attached to a submarine and capable of operating independently of the electrical system of the boat.
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