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Desenvolvimento de um tradutor NMEA para ASPN
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 3.65 MB | Adobe PDF |
Advisor(s)
Abstract(s)
A presente dissertação aborda a crescente complexidade e diversidade de sistemas de navegação que tornam essencial a criação de soluções capazes de integrar dados provenientes de diferentes fontes de forma fiável e acessível a múltiplas plataformas. Assim, foi desenvolvido um sistema modular destinado à interoperabilidade de dados de Posição, Navegação e Tempo (PNT), com foco na conversão de mensagens segundo o protocolo National Marine Eletronics Association (NMEA) para um formato padronizado em Extensible Markup Language (XML), seguindo a norma All Source Positioning and Navigation (ASPN).
O trabalho desenvolvido incidiu na conceção, implementação e validação de um sistema capaz de receber dados de um recetor GPS, interpretar e validar as mensagens NMEA, convertê-las para XML e redistribuí-las em rede via User Datagram Protocol (UDP) multicast. O sistema foi desenvolvido segundo uma arquitetura modular, o que permite a integração de componentes específicos em diferentes fases, como um módulo parser, tradutor de protocolo, e uma interface gráfica. Esta abordagem garante que existe facilidade na manutenção do sistema bem como o potencial para uma possível expansão futura.
A validação experimental passou por três fases distintas. Inicialmente foram utilizadas mensagens NMEA simuladas em ambiente local, garantindo que o sistema conseguia interpretar os dados recebidos. Uma vez concluída esta fase, integrou-se um módulo u blox 7M-NEO que fornecia dados Global Positioning System (GPS) reais. Os ensaios culminaram num contexto operacional, a bordo de um navio, onde foram testados todos os procedimentos implementados anteriormente. Os resultados obtidos demonstraram que o sistema manteve a consistência ao longo do processo, assegurando a tradução e posterior distribuição em rede.
Os resultados evidenciam que a solução desenvolvida é robusta e adequada para aplicação em cenários reais de interoperabilidade PNT, validando o uso do XML como formato comum para integração de sistemas heterógenos. Este trabalho contribui para a simplificação da gestão de dados de navegação, promovendo a interoperabilidade entre diferentes equipamentos e protocolos.
This dissertation addresses the increasing complexity and diversity of navigation systems, which makes it essential to develop solutions capable of integrating data from different sources in a reliable manner and making it accessible across multiple platforms. Accordingly, a modular system was developed aimed at the interoperability o Positioning, Navigation, and Timing (PNT) data, focusing on the conversion of messages following the National Marine Electronics Association (NMEA) protocol into a standardized format using Extensive Markup Language (XML), in accordance with the All Source Positioning and Navigation (ASPN) standard. The work carried out focused on the design, implementation, and validation of a system capable of receiving data from a GPS receiver, interpreting and validating NMEA messages, converting them to XML, and redistributing them over the network via User Datagram Protocol (UDP) multicast. The system was developed using modular architecture, allowing the integration of specific components at different stages, such as a parser module, protocol translator, and a graphical user interface. This approach ensures ease of system maintenance while providing for future expansion. The experimental validation was conducted in three distinct phases. Initially, simulated NMEA messages were used in a local environment to ensure the system could correctly interpret the received data. Once this phase was completed, a u-blox 7M NEO module providing real GPS data was integrated. The tests culminated in an operational context, aboard a ship, where all previously implemented procedures were evaluated. The results demonstrated that the system maintained consistency throughout the process, ensuring accurate translation and subsequent network distribution. The results indicate that the developed solution is robust and suitable for application in real PNT interoperability scenarios, validating the use of XML as a common format for the integration of heterogeneous systems. This work contributes to the simplification of navigation data management, promoting interoperability between different devices and protocols.
This dissertation addresses the increasing complexity and diversity of navigation systems, which makes it essential to develop solutions capable of integrating data from different sources in a reliable manner and making it accessible across multiple platforms. Accordingly, a modular system was developed aimed at the interoperability o Positioning, Navigation, and Timing (PNT) data, focusing on the conversion of messages following the National Marine Electronics Association (NMEA) protocol into a standardized format using Extensive Markup Language (XML), in accordance with the All Source Positioning and Navigation (ASPN) standard. The work carried out focused on the design, implementation, and validation of a system capable of receiving data from a GPS receiver, interpreting and validating NMEA messages, converting them to XML, and redistributing them over the network via User Datagram Protocol (UDP) multicast. The system was developed using modular architecture, allowing the integration of specific components at different stages, such as a parser module, protocol translator, and a graphical user interface. This approach ensures ease of system maintenance while providing for future expansion. The experimental validation was conducted in three distinct phases. Initially, simulated NMEA messages were used in a local environment to ensure the system could correctly interpret the received data. Once this phase was completed, a u-blox 7M NEO module providing real GPS data was integrated. The tests culminated in an operational context, aboard a ship, where all previously implemented procedures were evaluated. The results demonstrated that the system maintained consistency throughout the process, ensuring accurate translation and subsequent network distribution. The results indicate that the developed solution is robust and suitable for application in real PNT interoperability scenarios, validating the use of XML as a common format for the integration of heterogeneous systems. This work contributes to the simplification of navigation data management, promoting interoperability between different devices and protocols.
Description
Keywords
PNT Interoperability NMEA ASPN Interoperabilidade PNT
Pedagogical Context
Citation
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CC License
Without CC licence