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Authors
Advisor(s)
Abstract(s)
O objectivo desta Tese/Dissertação é conceber um sistema para a EFACEC – Sistemas
de Electrónica, S.A. que permita efectuar a monitorização, controlo e supervisão, de
forma remota, de um vasto conjunto de equipamentos geograficamente
distribuídos. Estes equipamentos são recursos críticos – Carregadores Industriais de
Baterias (CIB) e Unidades de Alimentação Ininterrupta (UPS) – e requerem uma
monitorização constante a fim de garantir uma elevada disponibilidade de serviço e,
consequentemente, contribuir para a satisfação final do cliente.
Em primeiro lugar efectuou-se um estudo relativo à monitorização integrada de
equipamentos geograficamente distribuídos para se determinar qual a arquitectura
mais apropriada às necessidades do sistema e do mercado. O facto de, na maioria
dos casos, se utilizarem as infra-estruturas físicas de comunicação já existentes
facilita o seu desenvolvimento e evita efectuar grandes investimentos em
telecomunicações. Adicionalmente, o tipo de controlo que estes sistemas atribuem a
um operador, permite uniformizar e optimizar sistemas produtivos de forma a obter
maiores margens de lucro, além de interligar quase todos os sectores de uma
indústria.
Em segundo lugar concebeu-se a solução a realizar. Optou-se por uma
aplicação Web, organizada em quatro camadas (navegador, servidor de aplicações,
servidor de bases de dados e equipamentos remotos) destinadas a disponibilizar
uma interface com o utilizador, implementar as funcionalidades necessárias para,
em tempo real, recolher, armazenar e processar a informação dos equipamentos
remotos. Dado que se decidiu dotar o sistema da capacidade de estabelecer ligações
via Ethernet e modem com os equipamentos remotos, foi concebido um módulo
específico dedicado ao estabelecimento destes tipos de ligações. Dado que o
processamento de alarmes é uma actividade crítica do sistema, propôs-se a
construção de um módulo adicional dedicado a esta actividade. Este módulo deverá
incluir a capacidade de interrogar periodicamente todos os equipamentos sob
monitorização e actualizar a base de dados do sistema. No seu todo, a aplicação
Monitorização Integrada para Sistemas de Alimentação Distribuídos
x Jorge Costa Lopes
destina-se a permitir que um utilizador autorizado possa aceder ao sistema através
de uma qualquer ligação à Internet para supervisionar o estado de todo os
equipamentos remotos.
Seguiu-se o desenvolvimento do projecto, tendo-se implementado todos os
módulos propostos. O conjunto de funcionalidades que possibilitam a supervisão
remota dos equipamentos e que desencadeiam, sempre que necessário, a
intervenção automática dos técnicos dos serviços de assistência foi realizado. A
depuração da aplicação decorreu da realização de testes funcionais extensivos. No
final, resultou um sistema com características e funcionalidades bastante atractivas
para os clientes da EFACEC, permitindo explorar novas formas de gerir o sistema,
optimizando a assistência e a monitorização, garantindo uma maior disponibilidade
de serviço com redução de custos operacionais e cumprindo os objectivos propostos.
Por último, efectuou-se uma análise do impacto da adopção desta solução na
empresa que permitiu constatar os benefícios decorrentes da sua utilização, tanto ao
nível operacional como financeiro.
The aim of this Thesis / Dissertation is to devise a system for EFACEC – Sistemas de Electrónica S.A. to remotely control and supervise a large set of geographically distributed equipments. These equipments are critical resources – Switching Mode Rectifier Cabinets (CIB) and Uninterruptible Power Supplies (UPS) – that require constant monitoring to ensure a high availability of service to customers. First, a study was carried out on integrated monitoring of distributed systems to determine the most appropriate architecture and to identify the requirements of both the system and market. Since, in most cases, a physical communications infrastructure is already available, it facilitates the development of these systems without the need for large communications investments. Additionally, such systems not only connect the distributed elements to a central office, but provide the operator with an overall type of control that allows the standardisation and optimisation of production systems, resulting in greater profit margins. Secondly, a solution was designed. The proposed solution is a Web application, organized in four layers (client browser, application server, database server and remote equipments) aimed to provide a graphical interface to the end-user, implement all the features required to gather, store and process the information from the remote equipments. Since the application must communicate with the remote equipments, a communications module must be provided to establish connections via modem and via the Ethernet interface. An additional module, fully dedicated to alarm processing – a critical activity of this system – is also required. This module must periodically poll the set of remote equipments under supervision and update the database. The overall application is intended to provide authorised users with access to the distributed system through any Internet connection and, thus, monitor the state of all equipments. During the project’s development phase, the different modules were built. The set of functionalities that enable the monitoring of the remote equipments and that trigger, whenever necessary, the automatic intervention of assistance service were Monitorização Integrada para Sistemas de Alimentação Distribuídos xii Jorge Costa Lopes developed. The application’s debugging was made through the realisation of extensive functional tests. The resulting system includes very attractive features and functionalities for EFACEC’s customers, providing new ways of managing remote equipments, optimizing the monitoring and assistance, ensuring greater availability of service and, thus, contributing to a reduction of operational costs and meeting the initial objectives. Finally, the impact of the adoption of this solution was analysed and it was possible to identify the benefits of its use, at both operational and financial level.
The aim of this Thesis / Dissertation is to devise a system for EFACEC – Sistemas de Electrónica S.A. to remotely control and supervise a large set of geographically distributed equipments. These equipments are critical resources – Switching Mode Rectifier Cabinets (CIB) and Uninterruptible Power Supplies (UPS) – that require constant monitoring to ensure a high availability of service to customers. First, a study was carried out on integrated monitoring of distributed systems to determine the most appropriate architecture and to identify the requirements of both the system and market. Since, in most cases, a physical communications infrastructure is already available, it facilitates the development of these systems without the need for large communications investments. Additionally, such systems not only connect the distributed elements to a central office, but provide the operator with an overall type of control that allows the standardisation and optimisation of production systems, resulting in greater profit margins. Secondly, a solution was designed. The proposed solution is a Web application, organized in four layers (client browser, application server, database server and remote equipments) aimed to provide a graphical interface to the end-user, implement all the features required to gather, store and process the information from the remote equipments. Since the application must communicate with the remote equipments, a communications module must be provided to establish connections via modem and via the Ethernet interface. An additional module, fully dedicated to alarm processing – a critical activity of this system – is also required. This module must periodically poll the set of remote equipments under supervision and update the database. The overall application is intended to provide authorised users with access to the distributed system through any Internet connection and, thus, monitor the state of all equipments. During the project’s development phase, the different modules were built. The set of functionalities that enable the monitoring of the remote equipments and that trigger, whenever necessary, the automatic intervention of assistance service were Monitorização Integrada para Sistemas de Alimentação Distribuídos xii Jorge Costa Lopes developed. The application’s debugging was made through the realisation of extensive functional tests. The resulting system includes very attractive features and functionalities for EFACEC’s customers, providing new ways of managing remote equipments, optimizing the monitoring and assistance, ensuring greater availability of service and, thus, contributing to a reduction of operational costs and meeting the initial objectives. Finally, the impact of the adoption of this solution was analysed and it was possible to identify the benefits of its use, at both operational and financial level.
Description
Mestrado em Engenharia Electrotécnica e de Computadores
Keywords
CIB UPS Sistema Distribuído de Monitorização Controlo Remoto
Citation
Publisher
Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto