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2. Indoor positioning system - Wikipedia

   en.wikipedia.org/wiki/Indoor_positioning_system

   An indoor location tracking map on a mobile phone. An indoor positioning system (IPS) is a network of devices used to locate people or objects where GPS and other satellite technologies lack precision or fail entirely, such as inside multistory buildings, airports, alleys, parking garages, and underground locations. [1]

3. Real-time locating system - Wikipedia

   en.wikipedia.org/wiki/Real-time_locating_system

   First, service providers have access to network-based and handset-based technologies that can locate a phone for emergency purposes. Second, historical location can frequently be discerned from service provider records. Thirdly, other devices such as Wi-Fi hotspots or IMSI catchers can be used to track nearby mobile devices in real time.

4. Tracking system - Wikipedia

   en.wikipedia.org/wiki/Tracking_system

   This enables non-vehicle centric applications and can bridge the indoor location gap, typically the domain of RFID and Real-time locating system (RTLS) systems, with an off the shelf cellular device. Currently, A-GPS enabled handsets are still highly dependent on the LBS carrier system, so handset device choice and application requirements are ...

5. Cambridge Consultants develops indoor tech to pick up where ...

   www.aol.com/news/2013-03-08-cambridge...

   Indoor navigation isn't a new concept, but it often requires wireless signals or custom infrastructure, neither of which are entirely reliable. Cambridge Consultants has come up with an as-yet ...

6. Wi-Fi positioning system - Wikipedia

   en.wikipedia.org/wiki/Wi-Fi_positioning_system

   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.

7. Asset tracking - Wikipedia

   en.wikipedia.org/wiki/Asset_tracking

   Such devices are known as GPS asset trackers and are different from other GPS tracking units in that they rely on an internal battery for power rather than being hard-wired to a vehicle's battery. The frequency with which the position of the device must be known or available dictates the quality, size or type of GPS asset tracker required.