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  2. GPS for the visually impaired - Wikipedia

    en.wikipedia.org/wiki/GPS_for_the_visually_impaired

    The Trinetra project aims to develop cost-effective, independence-enhancing technologies to benefit blind people. One such system addresses accessibility concerns of blind people using public transportation systems. Using GPS receivers and staggered Infrared sensors, information is relayed to a centralized fleet management server via a cellular ...

  3. Personal navigation assistant - Wikipedia

    en.wikipedia.org/wiki/Personal_navigation_assistant

    Bicycle navigation on a personal navigation assistant. According to the analyst firm Berg Insight, there were more than 150 million turn-by-turn navigation systems worldwide in mid-2009, including about 35 million factory installed and aftermarket in-dash navigation systems, over 90 million Personal Navigation Devices (PNDs) and an estimated 28 million navigation-enabled mobile handsets with GPS.

  4. Personal digital assistant - Wikipedia

    en.wikipedia.org/wiki/Personal_digital_assistant

    The Palm TX. A personal digital assistant (PDA) is a multi-purpose mobile device which functions as a personal information manager. Following a boom in the 1990s and 2000s, PDAs were mostly displaced by the widespread adoption of more highly capable smartphones, in particular those based on iOS and Android in the late 2000s, and thus saw a rapid decline.

  5. See Your Target Without It Seeing You From These Expert ... - AOL

    www.aol.com/lifestyle/best-hunting-blinds...

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  6. 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]

  7. Real-time locating system - Wikipedia

    en.wikipedia.org/wiki/Real-time_locating_system

    Some systems use optical (usually infrared) or acoustic (usually ultrasound) technology with, or in place of RF, RTLS tags. And fixed reference points can be transmitters, receivers, or both resulting in numerous possible technology combinations. RTLS are a form of local positioning system and do not usually refer to GPS or to mobile phone ...