Indoor Navigation System Using Bluetooth Low Energy Beacons

Global Positioning System (GPS) has been proven to be a boon for navigation across the globe using the geographical coordinates. Although, when we have to navigate inside an enclosed space or a building these coordinates do not help in this type of navigation. So, to facilitate Indoor Navigation, there are various techniques used such as Wi-Fi Fingerprinting, Digital Compass Technologies, QR Code, RFID etc. We propose to use BLE (Bluetooth Low Energy) Beacons for this Indoor Navigation System (INS) as it is more proficient than all the other technologies in terms of range, accuracy, privacy and security. BLE is a wireless personal area technology designed and marketed by Special Interest Group (SIG) aimed at novel applications in various domains. In this paper, we have implemented an INS using these BLE Beacons which calculate the available shortest path using Dijkstra's algorithm. This algorithm finds the shortest path tree from the source by building a set of available destinations that have a minimum distance from the source to the desired destination.