AEROSPACE
The standard in mission-critical connectivity
Figure 2: Notional diagram of transitioning federated hardware-centric platforms into an IMA system
architecture can save over one thousand pounds, opening up the opportunity to fl y further, as well as fl y more passengers, cargo or fuel, thanks to these SWAP-C savings. And today, IMA systems are proven in use. There are now over one hundred different commercial and military airframe types that employ an IMA architecture, including aircraft by Airbus, Boeing, KAI, KHI, IHI, Leonardo, Lockheed Martin Sikorsky, Mitsubishi, and Northrop Grumman.
Defi ning Supplier Roles: RTCA DO-297 In the commercial avionics industry, a business process was developed, RTCA DO-297, “Integrated Modular Avionics (IMA) Development Guidance and Certifi cation Considerations”, that defi nes three supplier roles that contribute hardware and software on a shared IMA platform to manage the complexity and cost of merging and integrating mixed safety level software components on a fl ight-critical platform. The overarching goal of DO-297 is that Application Suppliers should be able to independently work on their specifi c deliverable using only the IMA platform library supplied by the Platform Supplier, and not be exposed to unexpected responsibilities, cost and risk. DO-297 provides clear guidance and separation of all IMA suppliers and subcontractors, allowing them to focus on delivering their aspect of the system, including the relevant RTCA DO-178C avionics safety certifi cation artifacts.
The three DO-297 supplier roles are: 1. IMA Platform Supplier: Prepares the hardware compute environment, OS/ RTOS, board support package (BSP), aircraft platform capabilities and the communication infrastructure for applications, as well as all related safety and security certifi cation evidence 2. Multiple IMA Application Suppliers: Provide hosted functions, with appropriate certifi cation evidence, which execute
34 NOVEMBER 2022 | ELECTRONICS TODAY Figure 3: RTCA DO-297 supplier roles
protected ARINC 653 partitions 3. IMA System Integrator: Ties together this environment on a given airframe platform and achieves aircraft platform airworthiness This role separation on IMA platforms not only saves on hardware, but also saves on software development tool costs. Only the IMA Platform Supplier needs to procure a full array of tooling to create an ARINC 653 RTOS, board support packages, network drivers and more. The IMA software applications, many having different levels of safety criticality, only need to have enough tooling to compile/debug their software, create certifi cation evidence, and link it to the IMA Platform binary. In the spirit of ARINC 653 platform consistency and cost containment, this IMA Platform binary is provided at no cost to all suppliers, driving both uniformity and effi ciency throughout the DO-297 supply chain.
ARINC 653 and RTCA DO-297 provide a fantastic example of how, by using open industry standards reduces supplier cost and risk while driving supply chain effi ciencies throughout the aircraft, both during development and fl ight operations. The billions of dollars saved just by using these two standards allow commercial and military aircraft systems manufacturers to focus on production quality, airworthiness and operational effi ciency, while enabling the rapid and reliable transition to software- defi ned aircraft.
cloud. Connext DDS delivers also a proven framework to address the wide range of demanding data connectivity requirements in the healthcare inustry. For development teams designing complex systems, Connext DDS provides a lot of benefi ts like innovative data-centric connectivity that delivers full visibility into data in motion and a single solution to address the wide range of demanding data connectivity requirements. Plug-and-play interoperability between systems and system components, scalability for increasingly large and complex systems and self-forming and self-healing resilient systems with no single point of failure are some other great options. There is a proven integration with a fast local control loop and a secure connectivity over long distances including cloud infrastructure.
Additionally the company has low latency with real-time QoS (Quality of Service) and reliable systems operation over low- bandwidth communication links with long transmission delays. To round the whole thing off there is fully interoperable DDS Security support for confi dentiality, integrity and access control. The RTI Connext encompasses RTI’s proven technology and expertise have played a key role in mission-critical aerospace and defence systems around the world.
Real-Time Innovations, Inc.
www.rti.com
With its interoperability, portability, loose coupling and real-time Quality of Service (QoS), the Data Distribution Service (DDS) is the predominant standard for implementing mission-critical open architecture systems. As a leading DDS solution, RTI Connext provides a proven and productive environment for developing DDS compliant systems. Its broad support for programming languages, operating systems, processor architecture and network types make it ideally suited to integrating everything from sensors at the edge to track management in the
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