Objective
Study of the executive software required for use in future Integrated Modular Avionic(IMA) systems and evaluation of the use of ADA language for this purpose.
In regard to the Executive Software, all the services have been defined, namely the Real time Executive features, Communication management, Health Monitoring function, Downloading and Debugging kernels, Memory Management, initialisation, Interrupt and Exception handling, and the Avionics components library.
In order to control the workstate of the whole cabinet in the aircraft and the management of reconfiguration, a new function named "Supervisor" was analysed.
In the IMA concept, the Executive Software must be able to manage multiple application programs written in Ada, each application having several tasks. In the IMAGES project it has been assumed that the Ada Run Time System was resident within the Executive Software and shared by all the applications.
In order to have portable applications, a standardized Application/Executive interface was defined. This interface provides three different sections:
1) Operational services.
2) A standard Ada RTS interface used by the Ada compiler to provide the executable code of the applications.
3) Ada real time extensions involved by the avionics applications.
Point 2) was raised but solutions depend on agreement between Ada compiler suppliers more than between the aeronautical companies.
In regard to the development process, a study of the applications integration highlights the need for a new life cycle. Thus, initial contacts with airworthiness authorities were made to initiate the new process of certification in IMA context.
In future integrated modular avionics, complete independence between hardware and software will be provided by standardized executive software. This proposal aims to study this executive software through the following research tasks:
Definition of the functional requirements for executive software, including software needed for testing purposes. Drawing up the executive-applications interface requirements followed by writing the ADA specification for this interface. The architecture of a typical application will be studied, taking into account this interface, in order to be make a pre-validation of the technique.
Study of the impact of different system architectures on the executive software requirements, in order to complete the requirements, if necessary.
Study of the impact of the use of ADA on specific features in avionic applications in the executive software. This may mean completing the functional requirements and will influence the preparation of the ADA specification.
Study of the certification problems that may be raised by the new concept. Study of integration and validation techniques that assist the certification authority.
Study of communications aspects, between applications and between applications and the outside world, through the executive.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences computer and information sciences software
- engineering and technology mechanical engineering vehicle engineering aerospace engineering aircraft
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Coordinator
75781 Paris
France
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