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Integration and Performances Analysis of a Data Distribution Service Middleware in Avionics
Technical Paper
2015-01-2554
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The amount of functionalities in modern aircrafts is increasing to satisfy performance, safety and economic benefits. Therefore, the communication needs of avionic systems are growing. Furthermore, the portability and reusability of applications are current challenges of the aerospace industry. The use of the Data Distribution Service (DDS) middleware technology would reduce the complexity of communications and ease the portability and reusability of applications with its standardised interface. Few previous works used a DDS middleware within the aerospace industry and those didn't take into account the impact of this technology on the applications performances. Therefore, this paper presents an impact evaluation of using a DDS middleware on the performances of avionic applications. To do so, a design methodology was proposed to design an automatic flight control system (AFCS) from a high abstraction level representation of a control loop to a low-level implementation on a development board. The AFCS was modeled with Simulink® to control a Boeing 747-400 simulated within the X-Plane flight simulator. The AFCS code was then ported on a Freescale 8572 embedded platform running VxWorks operating system to allow hardware-in-the-loop (HIL) testing. The performances of the AFCS were evaluated through the stabilisation of the aircraft's altitude, speed and roll angle. To measure the impact of using a DDS middleware, the performances of the AFCS with and without a DDS middleware were compared. The results shows that using a DDS middleware allows the aircraft to stabilise at the desired altitude, speed and roll angle without having any significant impact on the performances of the AFCS. However, due to the limitations of this paper's works, there is still much to do before using a DDS middleware in an actual aircraft becomes a common practice.
Authors
Citation
Landry, K., Boland, J., and Bois, G., "Integration and Performances Analysis of a Data Distribution Service Middleware in Avionics," SAE Technical Paper 2015-01-2554, 2015, https://doi.org/10.4271/2015-01-2554.Also In
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