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Indoor Positioning System

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Why there is need of Indoor Positioning system? 1.        GPS (Global Positioning System) is used for outdoor Global Positioning. 2.        GPS requires connection with GPS satellites for positioning. 3.        For positioning inside building, PS satellite signals are weakened by roofs or wall of buildings. 4.        In such cases we need to have own positioning system called IPS (Indoor Positioning System) How IPS (Indoor Positioning System) is different from GPS? IPS works on the same lines as GPS except you use different signals than GPS satellites. What are the ways to achieve Indoor Positioning System? 1.        Wi-Fi Triangulation – Use existing Wi-Fi Routers as signal sending devices to accurately pinpoint location inside a building. ·      Every Wi-Fi router sends signals in Circular pattern. ·          Device which falls in the range of Wi-Fi router can read the signal strength without even connecting to the router. ·