In spite of economic down turns and various political events, global air traffic continues to grow. As a result, and to take advantage of the considerable technology advances in the past decade, global programs are underway to re-architect air traffic management (ATM) systems and to develop system wide information management (SWIM). These programs include SESAR in Europe, and NextGen in the United States.
Leveraging Standards and New Technologies
These new SWIM and ATM systems will make much more intensive use of information technology for the distribution of all information concerning air traffic, including aircraft trajectories and flight conditions, weather, status of airports, and enroute navigation aids. These new systems are designed to be extensible so that new information services can be added as required. These information services will be based on open standards (e.g. AIXM, WXXM) and will be accessible by all service consumers with suitable access rights.
One of the first systems being developed is the management and delivery of NOTAMS. The current system of NOTAMS (Notices to Airmen) is being gradually replaced by a more machine and database compatible digital NOTAM system. Going digital helps to ensure better synchronization of data between the pilots and the onboard and ground-based navigation components. Instead of pilots picking up a collection of printed notices before preparing for take off (with the not uncommon risk of not getting all the relevant notices for their specific flight), pilots now have devices that display digital notices. Notices and updates can be automatically transmitted to these devices, with much less risk of missing something important.
Registry for SWIM Data
The Aeronautical Information Exchange Model (AIXM) was developed by the Federal Aviation Administration (FAA) and Eurocontrol as a global standard for the representation and exchange of aeronautical information. It was designed as a basis for digital aeronautical information exchange and for enabling the transition to a net-centric, global aeronautical management capability. Applications such as the Galdos Registry for System Wide Information Management (SWIM) implement these standards.
Architecture of the SWIM Registry
The SAA Dissemination Pilot project was conducted by the Federal Aviation Administration (FAA) and the Open Geospatial Consortium (OGC) to demonstrate the feasibility of using OGC Web Services to automate the dissemination and portrayal of Special Activity Airspace (SAA) information (including updates) to National Airspace System (NAS) stakeholders and other external users. The objective of the project was to explore and develop next generation concepts for air traffic control, in particular the ability to automatically and reliably distribute aeronautical and weather information, on a request or on an “as changed” basis, to pilots and to avionics systems.
The main focus of the project was to implement a message brokering system based on a Publication/Subscription infrastructure to mediate and transform xNOTAM messages based on the AIXM5 GML application schema between publishers and subscribers and to integrate other data sources based on different XML schemas such as WXXM.
Aviation resources such as AIXM features, portrayal rules, schemas, and metadata for datasets and services, were harvested in the OWS-9 project and published into the Galdos INdicio web registry service (OGC CSW-ebRIM) to enable optimal discovery and retrieval of these resources. Over one million registry objects representing the aviation resources and association between them were loaded into the aviation registry.
How Galdos Can Help
Galdos Systems has played a significant role in these developments, being the original author of Geography Markup Language (GML) on which AIXM and WXXM are based, and having contributed to the development of AIXM and WXXM. Galdos has also developed key technology components such as the SWIM Registry which can be deployed as part of the next generation air traffic management information infrastructure.
Galdos technology components for ATM include both INdicio™ and INtune™. These products offer superior performance and flexibility relative to either open source or commercial products, and Galdos can offer controlled source-code solutions on request.
Contact Galdos Systems to learn more about the SWIM Registry and our work with aviation standards.