Alternative architecture approaches for distributed control of smart buildings

• Autor(a) principal: Cuco, Débora Eulália Manhique
• Data de Publicação: 2023
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10071/30607
• topic: Internet das coisas -- Internet of things; Domótica -- Home automation; Distributed control; Controle distribuído

With the increasing distribution and density of devices in smart communities or buildings, factors like reliability and integrity are put to the test in the resource and management processes of automation platforms, when delegation of device control is intended. For this reason, there is a need for an architecture that can address such challenges. This work aims to study different approaches for distributed control in IoT (Internet of Things) environments and their architectures, and it also intends to analyze how these approaches can be installed and performed in the context of distributed control in smart building management platforms. The main goal of this dissertation is to design and compare alternative architectures for the integration of building automation platforms envisaging the distributed management of resources. To achieve the aim of this dissertation, four integration alternatives have been proposed combining two approaches for communication, MQTT and Rest API, with two placements of communications services, in edge and cloud servers. According to tests, all alternatives achieve the desired integration, and the best response time result was 33.49ms when communicating via Rest API edge services. However, the integration via Rest API left exposed items that could be undesirably controlled and, as such, it is less secure. However, this is not the case when communication via MQTT, which presents an acceptable response time of slightly over 100ms, whether using edge or cloud servers.