Desenvolvimento do protótipo de um sistema de localização com módulo Wi-Fi

Abstract

This paper aims developing a prototype of a location system composed of by a Wi-Fi (Wireless Fidelity) module and a Android mobile application, which will detect the presence of this module by the Wi-Fi scan service of Android and will calculate the distance between the module and the cellphone, defined by the position of the smartphone to the module, through the signal strenght of the module received by the cellphone., using the technique of the Received Signal Strenght Indicator (RSSI). The main motivation of this Project is the creation of a product to find domestic animals, a leash with the Wi-Fi module “embedded” which will be find by the mobile application developed. However, this system can be used for several other applications, such as finding other objects in several environments, example: lugages at an airport. This applications are directly related with the concept of the Internet of Things, which says that objects of our dayly use can connect to the internet to perform various functions. Tests were perfomed, battery consuption by the module and calculed distance by the application, to validate the operation of the developed system, based on the results obtained an adjustment was made to improve the accuracy of the system.