Sistema de automação residencial com configuração de cenas

Abstract

This paper aims to propose a modular home automation system, expandable and low-cost, where the user can control via Internet elements of residence, such as light bulbs, home appliances and air conditioners, besides view measured values by sensors and real-time streaming video. The system consists of two man-machine interfaces, automation central, sensors/actuators and monitoring modules. The main man-machine interface is an application for Android platform, which provides the user all system functions. The secondary interface is a supervision screen embedded in the central microcomputer Raspberry Pi designed for devices with HDMI connection. Per the monitoring screen, it is possible to view the status of eight sensors/actuators modules and the real-time video streaming provided by the monitoring module. The central, besides provide HDMI supervision screen, is responsible for executing the requests coming from the user via TCP/IP protocol, communicating with the sensors/actuator modules via radio frequency. The sensors/actuators modules are responsible for measuring environmental variables such as temperature and humidity or alter states of devices as lamps, electrical outlets and devices controlled by infrared. The protocol is Plug & Play, with automatic addition and removal of devices. The system also contains events scheduling and scene setting, where the user can configure a combination of actuators states to be changed simultaneously. The estimated cost of the system is R$ 941,94.