Accuracy Analysis of the Indoor Location System Based on Bluetooth Low-Energy RSSI Measurements

Systems for determining the position of objects inside buildings have a wide range applications, such as surveillance people’s movements in hospitals, and goods or mobile robots warehouse spaces production halls. Hence, there is need development methods that could be applied those purposes. This paper presents results research on an experimental system localizing people being evacuated from building. The proposed solution was designed part building evacuation management system. method used finding location belongs to class proximity-type based Received Signal Strength Indicator (RSSI) information Bluetooth Low-Energy (BLE) devices. devices build (BLE receivers) evacuee’s wristband transmitters) are low-budget electronic modules. preliminary process selecting data processing methods, well tests network created measurements statistical analyses properties RSSI parameter BLE signal transmission between modules presented. In addition, recorded under varying environmental conditions choice its parameters made with use determined probabilities nearest locator node detection. Finally, performance installation evacuee tracking tested effectiveness proximity evaluated. aimed analyze detection impact shading. They also allowed mean error estimating maximum determination error. It should emphasized estimation has very low computational load, allowing implementation extensive real-time typical personal computer. Although classified coarse positioning system, features cost, simplicity, flexibility, commonly available components requirements load make it attractive. Such directly transferable other applications in, example, Industry 4.0.