Localização indoor de beacons bluetooth low energy em ambiente de interferência de sinal

Abstract

In this work, a software and hardware system for localization is implemented. For this job, an experiment that evolves multilateralization of beacon BLE with six anchors to define its positioning in a cartesian coordinate system was performed. An old concept known in the literature as IPS, that resembles the working system of a GPS but in a lesser environment and with different applicability. The environment in which the experiment was carried out had signal interference, making the distance calculation between the sender and receiver device more inaccurate, resulting in a median error of 11,82m2. So, as a way to prevent reading errors, two beacons were fixedly positioned to predict the environment coefficient, improving the results by about 52,3%.