GEOTAGGING PHOTO SMARTPHONE APP USING GALILEO DIFFERENTIATORS
EGNSS4ALL is an Open-Source mobile phone application for IOS and Android. It takes advantage of GNSS raw measurements, EGNSS differentiators (EGNOS, dual frequency capabilities and Open Service – Navigation Message Authentication – OS-NMA) for trustworthy and accurate geotagging. Inside the App, the user can perform several different tasks:
•Taking photos, storing the position data (PVT) and representing them on the map;
•Retrieving raw data about a specific point on the map through GNSS Raw Data;
•Having access to GNSS SkyMap, showing the location of the satellites of the four global constellations (GPS, GALILEO, GLONASS, BeiDou) allowing for Two-Line Element (TLA) cross-check
•Assisted-NMA architecture providing authenticated positioning.
EGNSS4ALL unique functionalities improve the performance and trustworthiness of smartphone photo geotagging, mapping and tracing, serving multiple domains including urban planning, logistics and insurance.