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  2. GPS tracking unit - Wikipedia

    en.wikipedia.org/wiki/GPS_tracking_unit

    A GPS tracking unit, geotracking unit, satellite tracking unit, or simply tracker is a navigation device normally on a vehicle, asset, person or animal that uses satellite navigation to determine its movement and determine its WGS84 UTM geographic position ( geotracking) to determine its location. [1] Satellite tracking devices may send special ...

  3. Mobile phone tracking - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_tracking

    Mobile phone tracking is a process for identifying the location of a mobile phone, whether stationary or moving. Localization may be affected by a number of technologies, such as the multilateration of radio signals between (several) cell towers of the network and the phone or by simply using GNSS. To locate a mobile phone using multilateration ...

  4. Geolocation Privacy and Surveillance Act - Wikipedia

    en.wikipedia.org/wiki/Geolocation_Privacy_and...

    One notable incident of warrantless GPS tracking in 2005 led to United States v. Jones, decided by the United States Supreme Court. In Jones the police obtained a warrant to attach a GPS device to the underside of the defendant's car but then violated the warrant's scope in both geography and in length of time.

  5. Vehicle tracking system - Wikipedia

    en.wikipedia.org/wiki/Vehicle_tracking_system

    A vehicle tracking system combines the use of automatic vehicle location in individual vehicles with software that collects these fleet data for a comprehensive picture of vehicle locations. Modern vehicle tracking systems commonly use GPS or GLONASS technology for locating the vehicle, but other types of automatic vehicle location technology ...

  6. Real-time locating system - Wikipedia

    en.wikipedia.org/wiki/Real-time_locating_system

    Real-time locating systems ( RTLS ), also known as real-time tracking systems, are used to automatically identify and track the location of objects or people in real time, usually within a building or other contained area. Wireless RTLS tags are attached to objects or worn by people, and in most RTLS, fixed reference points receive wireless ...

  7. Consumer Reports - Wikipedia

    en.wikipedia.org/wiki/Consumer_Reports

    Revenue. $241.7 million (2017) Employees (2019) 592. Website. www .consumerreports .org. Consumer Reports ( CR ), formerly Consumers Union ( CU ), is an American nonprofit consumer organization dedicated to independent product testing, investigative journalism, consumer-oriented research, public education, and consumer advocacy.

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