Evaluation of the Cost-Effective Indoor Wireless Positioning System Using RSSI Method

This paper deals with using low-cost radio modules for indoor localization purposes. A comparison of the various positioning techniques is introduced in the beginning parts. In addition, the trilateration method’s mathematical background is briefly introduced. Bluetooth Low Energy has been chosen for real environment tests and deployment of the proposed methods. The system consists of newly developed and manufactured hardware units. The paper then describes the microprocessor and post-processing algorithms used. The designed system was installed in the laboratory room for verification and measurement purposes. Finally, the platform was evaluated regarding the final accuracy in the real installation.