Geolocalização indoor utilizando a tecnologia bluetooth de baixa energia

Abstract

The exact or approximate location of an object or person is not limited only to applications in external environments, the indoor location is of great importance in technological scenarios where there is already demand generated by consumers both for commercial and industrial purposes as well as for personal applications. Radio frequency and light transmission technologies are already studied in indoor localization projects, where through communication between the components with measurement techniques, it can measure the location in indoor environments with the help of a smartphone or receiving devices. Going through some technologies, possible applications, programming languages and calculations, this work applied in practice the use of a localization system with the use of BLE technology through ESP32 devices and Android smartphone, using the trilateration technique in addition to the development of an application to carry out the experiment. It is possible to validate in this project that BLE despite its particularities is a mature technology that can and is already used for localization applications. In this project we present theoretical and practical foundations, together with the description of calculations and methods used to achieve the proposed objective, as well as the results of the tests carried out.