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Many different systems take advantage of existing wireless infrastructure for indoor positioning. There are three primary system topology options for hardware and software configuration, network-based, terminal-based, and terminal-assisted. Positioning accuracy can be increased at the expense of wireless infrastructure equipment and installations.
Magnetic positioning is an IPS (Indoor positioning system) solution that takes advantage of the magnetic field anomalies typical of indoor settings by using them as distinctive place recognition signatures. The first citation of positioning based on magnetic anomaly can be traced back to military applications in 1970. [1]
Wi-Fi positioning system (WPS, WiPS or WFPS) is a geolocation system that uses the characteristics of nearby Wi‑Fi access points to discover where a device is located. [1]It is used where satellite navigation such as GPS is inadequate due to various causes including multipath and signal blockage indoors, or where acquiring a satellite fix would take too long.
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In 2011, Navizon unveiled Indoor Triangulation System (I.T.S.), a Wi-Fi positioning system for businesses that tracks Wi-Fi enabled smart phones, tablets and notebooks, and gives a view of people traffic inside a building or throughout a campus with room-and floor-level accuracy.
A major subclass is made of geopositioning systems, used for determining an object's position with respect to Earth, i.e., its geographical position; one of the most well-known and commonly used geopositioning systems is the Global Positioning System (GPS) and similar global navigation satellite systems (GNSS).
In most cases, the more RTLS reference points that are installed, the better the location accuracy, until the technology limitations are reached. A number of disparate system designs are all referred to as "real-time locating systems". Two primary system design elements are locating at choke points and locating in relative coordinates.
RACELOGIC design and develop high accuracy test and positioning systems for a wide range of industries. VBOX GPS data logging products vary from the 10 Hz VBOX Mini, a rugged unit for simple testing to the VBOX 3i which logs at a 100 Hz, and which forms the basis of the VBOX Advanced driver-assistance systems testing packages.
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