Indoor localization system based on low power Wi-Fi technology

Recently, a lot of localization systems have been studied. These systems are successfully used in many real-world applications as inventory management, asset tracking, location detection of products stored in a warehouse, location detection of medical personnel, patients or equipment in a hospital, and so on. For finding location of an object, a system using Tag4M devices is proposed in this paper. The localization is based on distance measurement using received signal strength indicator. The distances between the Wi-Fi tag and each access point are represented as circles having the centre in the access point locations which have known coordinates. The target´s position is given by the point at the intersection of the circles.