Controle de Ambiente por Voz usando Serviços em Nuvem e Microcontrolador de Baixo Custo

• Autor(a) principal: Almeida, Livia de Oliveira
• Data de Publicação: 2022
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/215982
• topic: Home automation; Automação; Automação residencial; Microcontroladores

Following a strong trend of creating technologies designed with the purpose of guaranteeing the individual’s comfort, home automation has been gaining more and more space in the market. Recently, with the evolution of virtual assistants, this automation model has invested in voice commands. At first, voice commands were used for short searches and reading messages on cell phones. However, this feature has come a long way with the possibility of smarter interactions. The capabilities of virtual assistants are being rethought so that communication between humans and machines is as natural as possible. Within this context, devices such as Alexa emerged, meant to follow small commands, such as turning on music and giving information about the weather. With the evolution of home automation, it is now possible to give commands to various household appliances, which gradually adapt to the new reality. However, these solutions are still expensive and timeconsuming. The work in question seeks to find a solution for remote control of environments. With just a smartphone, using a cloud service and a low-cost microcontroller, the user should be able to manage digital and analog inputs and outputs from sensors and other devices miles away. One option defined in this study was to use the Google Home application. With this tool, which integrates Google Assistant, it is possible to know and change the conditions of a remote environment through voice commands using a cell phone. Thus, the user activates the Google Assistant by voice, the Google Home app interprets the command and links it to the devices already configured on their platform. Devices present in the app communicate with an environment on Node-RED through the Smart NORA service. The Node-RED environment is created in a virtual machine inside the Google Cloud. The microcontroller communicates with the Node-RED environment using the MQTT protocol. Moreover, commands can be made to only receive information received by the microcontroller or to command signals that come out of the microcontroller.