Aplicação da tecnologia LoRa na automação de ambientes para controle de acesso

Abstract

There is a wide range of technologies being launched every time. Among them the LoRa technology, which allows the communication of simple devices with complex systems. An application of this technology is an electronic lock system that allows the administrators of a given environment to control and monitor the accesses by third parties to this environment with relatively low costs. In this work we elaborated a system composed by electronic lock, gateway and an application in a web server. This system controls access through electronic locks that perform RFID tag readings for individual identification. The data is transmitted through a LoRa technology module that transmits radio frequency to a gateway. The gateway is responsible for forwarding the transmitted data to a web application. The gateway acts as a bridge between the LoRa radio frequency transmission and the ethernet transmission. The data flows in both directions at the gateway, both from the latch to the web application and from the web application to the latch. The web application is responsible for accessing the data sent from the gateway to a server in the cloud and displaying the access data as reports and also controlling the access authorizations either by adding new users or by withdrawing access to others. The results obtained were reasonable, obtaining a functional system but with limitations in terms of reach and number of locks for the same gateway.