Automação residencial usando Software OpenHAB

Abstract

The home automation scenario in Brazil shows that this market is in an emerging process. This sector is often insured by the mythification of the high costs of implementing home automation systems in the country. In view of this premise, this work proposes the development of a low-cost home automation system with good compatibility, capable of delivering an intuitive adaptation and highly comfortable interaction for the user. The main objective is, from the analysis of some software and devices available on the market, to develop an automation system focused on the development of user interfaces, in addition to the control of variables such as lighting, temperature monitoring, curtain and television using a centralizing software and an intelligent virtual assistant for activating variables via voice commands. The Open Home Automation Bus (OpenHAB) is used in this work to provide an intuitive interface from a good interconnectivity, showing itself to be efficient in delivering optimization and comfort in the routines of a home. OpenHAB has its server installed on a Raspberry Pi 3 B which, through a wi-fi connection, using the MQTT protocol, sends the commands received from the intelligent virtual assistant to the MQTT broker topic. The home automation system features an intuitive interface for controlling variables via the application or through software access credentials, as well as another interface fully dedicated to control via touch screens. Thus, first, the centralizing software chosen for the project is presented, as well as its main characteristics that qualify its use in low-cost home automation systems. Then, the main elements that make up automation are pointed out, the case studies and the analyzes necessary for choosing the equipment, in addition to the definition and function of each element in the system. Subsequently, the operating structure of the proposed system and the installation and development procedures of the project are discussed. Finally, the results obtained with the interfaces created for the functioning of the system are presented. It is then noticed that the low cost of implementing the project does not compromise its compatibility and the great interaction between user and system.