Communication scheduling data generation for pre-configured IMA network
Aircraft Engineering and Aerospace Technology
ISSN: 0002-2667
Article publication date: 9 December 2020
Issue publication date: 16 February 2021
Abstract
Purpose
In modern integrated modular avionics (IMA), it plays an important role to guarantee safety and reliability of the system. The safety and reliability of communication scheduling plays a crucial role in this IMA platforms-based network system. To verify the safety and reliability of the communication scheduling in this network, sufficient and typical test data must be generated to input into the network, obtain and evaluate the corresponding output.
Design/methodology/approach
To generate communication scheduling data, this paper presents an iterative communication scheduling data generation algorithm for a configured network of IMA platforms. First, the algorithm generates all possible communication schedules for the first timestamp. Then, constraint is introduced to decrease the quantity of communication schedules to improve the efficiency. The communication schedules are gradually extended to the second timestamp until the final timestamp, i.e. length of communication scheduling sequence.
Findings
To verify the efficiency and feasibility of the algorithm, a model is built based on the architecture analysis and design language (AADL) by mapping the correlation time of generated communication scheduling data into task properties. Schedulability is analyzed by loading this model into AADL Inspector. The simulation result illustrates that the proposed algorithm is efficient and feasible.
Practical implications
The proposed method can provide data support for communication scheduling test for the network of IMA platforms.
Originality/value
A constraint-based iterative communication scheduling data generation algorithm is proposed for the network of IMA platforms automatically.
Keywords
Acknowledgements
This work is supported by National Science Foundation for Young Scientists of China (Grant No. 61703406) and Tianjin Natural Science Foundation Project (18JCQNJC05000).
The author(s) declare(s) that there is no conflict of interest regarding the publication of this paper.
Citation
Zhao, Z., Fan, Z., Sun, Y. and Liu, Z. (2021), "Communication scheduling data generation for pre-configured IMA network", Aircraft Engineering and Aerospace Technology, Vol. 93 No. 1, pp. 150-158. https://doi.org/10.1108/AEAT-01-2020-0014
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited