Multimodal Indoor Localization: Fusion Possibilities of Ultrasonic and Bluetooth Low-Energy Data

The resilience of indoor localization systems is a main concern their industrial application. A combination different techniques can enhance the overall robustness such systems. In this work, we present fusion possibilities coarse Bluetooth Low Energy based on received signal strength indicator and finer ultrasound time difference arrival (TDOA) technique. This approach offers advantage to robustify high-accuracy ultrasonic in areas with non-optimal coverage. Moreover, data enables area cost effective manner. contribution proposes evaluates (i) novel methods how system be extended constrained (ii) possibility incorporate available information TDOA algorithm improve accuracy.