Integration of indoor localization system using wi-fi fingerprint, bluetooth low energy beacon and pedometer based on android application platform

Abstract

Location-based service has become an important element in indoor positioning with increasing precision. Indoor technologies help with user navigation and positioning in specific locations. Many location-based services and applications have been developed to improve indoor positioning, especially to deal with the complexity of location awareness systems. This study proposes the use of Wi-Fi Fingerprint (Wi-Fi), pedometer and Bluetooth Low Energy 4.0 (BLE) beacon to measure and pinpoint user's indoor locations using received signal strength-based indoor localization. The system tracks, directs and guides user's indoor movements using an android application and assists first-time visitors to find a particular location. The networks are comparable and can be detected using smartphones. The phones will detect the strongest signal from the available networks. Wi-Fi, pedometer and BLE 4.0 beacon were able to identify the direction and location in indoor environments and assist user to find their specific destination easily. The map provided by the system based on position information has an accuracy of 91.5% at the third floor and 97.1 % at the second floor, and the signals have seamlessly worked together in integrated fashion when user is in indoor environment. The system is also able to highlight pathway according to user's current location and destination, in addition to being fast responding, secure and robust. The application enables seamless service in real-time operation and provides multiple pathways, guidance and highlighted map for indoor localization. The display of distance between the user and the destination as the user near the target destination is an extremely helpful feature in the application.