INCREASE THE ACCURACY OF THE INDOOR LOCATION SYSTEM USING THE BLUETOOTH LOW ENERGY DEVICES

Abstract

Recently, the commerical applications using indoor positioning techniques are increasing rapidly, including many systems using Bluetooth Low Engergy (BLE) devices. However, these systems are facing the problem that the RSSI signal received is not stable in the indoor environment. This result leads to low positioning accuracy. In order to improve the accuracy of the indoor positioning system using BLE, we propse using multiple BLE devices to filter out the RSSI deviation, thereby reducing the instability of the RSSI signal. We also give the mathematical model to calculate the user's location. Our results show that the system has improved the positioning accuracy significantly compared to other systems.