Radio-Frequency communication in a SCADA system for the monitoring and control of intelligent building and office blocks

• Autor(a) principal: Coppens, Tom
• Data de Publicação: 2017
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.22/9912
• topic: Intelligent building; SCADA system; Matlab®; MODBUS TCP/IP; ARM-SE; Radio transmission

The efficient use of electricity and how people approach it, is a topic that has a big impact on the environment and society. The consumption management will be improved by the monitoring and the controlling of electrical installations. By creating a management of the industrial installations people will use the existing and new energy resources more careful. Communication is a key part in this process and that is why the improvement of data transmission is very important to obtain a controlled process. Transferring data is achieved by sending an electromagnetic signal by means of radio waves, electrical voltage, etc. by means of different types of communications channels. The main goal of this report is to contribute GECAD developing a connection between a superior network and an external one to create the possibility of monitoring and controlling devices linked to the networks. The communication devices used are modems which use radio waves to make the transmission. The two advanced radio modems (ARM-SE) that are used during this assignment have the ability to connect with slave devices using different types of communication protocols. All the different protocols to achieve a data transfer between the two networks have been investigated and analyzed to find the best solution to connect a programmable logic controller to the network of GECAD. A program has been created to access the data of an analyzer to obtain knowledge on how to implement analyzers in a SCADA system to improve monitoring of an electrical installation. This assignment will achieve a better understanding of the different protocols and operation modes used in the industrial sector to create intelligent buildings and office blocks. The whole assignment is set up to monitor the data of a power analyzer (CIRCUTOR) which makes it possible to test all the operation modes and develop the program to retrieve data from the analyzer. Thereafter the program was used to create a SCADA system to retrieve data from other analyzers (PM130) connected to a PLC on an extern location. This is made possible because both analyzers are compatible so after changing some parameters, data could be retrieved easily. Despite a lot of difficulties with the modems, which creates a doubt of their reliability, it concludes that they are useful devices to transmit data for the intelligent buildings.