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Authors
Abstract(s)
Este projecto surgiu no contexto da solicitação de um dos clientes da empresa Castros
Iluminações que pretendia um sistema de iluminação decorativa (baseada em LED) de dois
conjuntos de 288 janelas, pertencendo cada conjunto a uma fachada diferente do edifício.
Este sistema teria que prever a possibilidade de controlar a cor de cada janela
individualmente, dando ao cliente a possibilidade de alterar o ambiente decorativo das
fachadas do edifício.
A utilização de comunicação sem fios foi justificada pela necessidade de evitar a
quantidade enorme de cabos que seria necessário passar utilizando os sistemas comerciais
convencionais e a impossibilidade de os esconder. Esta solução foi pensada para ser
implementada num edifício com 14 Andares, facto que por si só inviabiliza a passajem de
cabos.
Para interligar todos os dispositivos de iluminação decorativa com um controlador portátil,
e eliminar os problemas ligados à cablagem, foi utilizado o protocolo de comunicações
sem fios ZigBee™. A escolha recaiu neste protocolo devido a factores como os seus baixos
consumos, simplicidade do protocolo comparativamente com outras redes e o seu baixo
custo. No desenvolvimento deste projecto foi utilizada a stack da Microchip©, versão
gratuita, disponibilizada na internet e os seus transceivers de comunicação Zigbee™,
MRF24j40MA.
Para fazer a interface de comunicação com o utilizador, foi desenvolvida uma aplicação de
Software para correr em computadores com ambiente Windows™. Esta aplicação foi
desenvolvida em Visual Studio™ utilizando a linguagem C#.
Foram efectuados alguns testes para se perceber a eficiência e robustez da comunicação
ZigBee™ e apesar do número de dispositivos disponíveis para ensaios ser muito reduzido,
foi possível verificar que, mesmo funcionando correctamente, o desempenho do sistema
poderá ser melhorado, quer seja a nível da gestão das comunicações, quer a nível do
software informático para controlo do ambiente decorativo das fachadas do edifício. O sistema, no actual estado de desenvolvimento, permite controlar a cor dos vários
dispositivos da rede através do computador, com uma resolução de 24bits. A aplicação
desenvolvida em Visual Studio™ permite controlar de forma simples e intuitiva para o
utilizador, a cor do material iluminativo dos vários dispositivos da rede.
This project arose in the context of a request from the company's customers Castros Illuminations which wanted a decorative lighting system (based on LED) of two sets of 288 windows, each set belonging to a different facade of the building. This system would have to provide that control the colour of each window individually, giving the customer the ability to change the environment of the decorative facades of the building. The use of wireless communication was justified by the need to avoid the huge amount of cables that would need to spend using the conventional commercial systems and the inability to hide them. This solution was designed to be implemented in a building with 14 floors, which in itself undermines the darning cables. To interconnect all the decorative lighting controller with a laptop and eliminate the problems beset the wiring, we used the protocol wireless ZigBee™. The choice fell on this protocol due to factors such as its low consumption, simplicity of the protocol compared with other systems and their low cost. In this project we used the stack from Microchip©, free version available on the Internet and its communication transceivers Zigbee™, MRF24J40MA. To make the communication interface with the user, we developed an application software to run on Windows™ computers. This application was developed in Visual Studio™ using C #. Some tests were made to realize the efficiency and robustness of communication ZigBee™ and despite the number of devices available for testing to be very low, we observed that even functioning properly, system performance can be improved, whether the management communications, both within the computer software for environmental monitoring of the decorative facades of the building. The system, in the current state of development, allows you to control the colour of various network devices via a computer with a resolution of 24bits. The application developed in Visual Studio™ allows you to control a simple and intuitive to the user, the colour of the illuminating equipment of various network devices.
This project arose in the context of a request from the company's customers Castros Illuminations which wanted a decorative lighting system (based on LED) of two sets of 288 windows, each set belonging to a different facade of the building. This system would have to provide that control the colour of each window individually, giving the customer the ability to change the environment of the decorative facades of the building. The use of wireless communication was justified by the need to avoid the huge amount of cables that would need to spend using the conventional commercial systems and the inability to hide them. This solution was designed to be implemented in a building with 14 floors, which in itself undermines the darning cables. To interconnect all the decorative lighting controller with a laptop and eliminate the problems beset the wiring, we used the protocol wireless ZigBee™. The choice fell on this protocol due to factors such as its low consumption, simplicity of the protocol compared with other systems and their low cost. In this project we used the stack from Microchip©, free version available on the Internet and its communication transceivers Zigbee™, MRF24J40MA. To make the communication interface with the user, we developed an application software to run on Windows™ computers. This application was developed in Visual Studio™ using C #. Some tests were made to realize the efficiency and robustness of communication ZigBee™ and despite the number of devices available for testing to be very low, we observed that even functioning properly, system performance can be improved, whether the management communications, both within the computer software for environmental monitoring of the decorative facades of the building. The system, in the current state of development, allows you to control the colour of various network devices via a computer with a resolution of 24bits. The application developed in Visual Studio™ allows you to control a simple and intuitive to the user, the colour of the illuminating equipment of various network devices.
Description
Keywords
Controlo da iluminação ZigBee™ LED RGB USB Comunicação sem fios C# Visual Studio™ 2008 PIC18LF4620 PIC18LF2550 Zena™ DMX RS485 Castros Iluminações ml-200486812 Lighting control Wireless communication
Pedagogical Context
Citation
Publisher
Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto.