Definition and Modelling of the Communication Architecture for the Control of a Helicopter-Drone

Galdun, Jan; Ghostine, Rony; Thiriet, Jean-Marc; Ligus, Jan; Sarnovsky, Jan

doi:10.3182/20070213-3-cu-2913.00041

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…Ethernet network with CSMA/CD mechanism has worse performance parameters in comparison with industrial networks, when the network is high loaded. For example, with the same bit rate as in technological networks, the Ethernet network is not able to transmit required data within the required time intervals [49] [50]. Ethernet is a type of non-deterministic network.…”

Section: Some Considerations On the Network For Cyber-physical Symentioning

confidence: 99%

Some Considerations on Dependability Issues and Cyber-Security of Cyber-Physical Systems

Thiriet

Mocanu

2018

2018 International Conference on Smart Communications in Network Technologies (SaCoNeT)

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For the last recent years, there has been a convergence between computer engineering approaches and automation aspects (industrial systems, internet of things) also called cyber-physical systems, for the development of processbased cyber-security strategies. Classically, security studies are based on risk analysis. Compared to classical IT approaches, the actual process (for instance a nuclear power plant or a chemical process) or system (autonomous car, drone) are taken into account in our approach for two reasons. The first reason is that the vulnerabilities of such systems or processes vary dynamically as a function of the time, the second reason is because the "standards" context is depending on the application domain and relationships with the IEC 61508 functional safety standard seems relevant. The paper presents a state of the art of problematics and proposed some approaches to these issues.

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Section: Some Considerations On the Network For Cyber-physical Symentioning

confidence: 99%

Some Considerations on Dependability Issues and Cyber-Security of Cyber-Physical Systems

Thiriet

Mocanu

2018

2018 International Conference on Smart Communications in Network Technologies (SaCoNeT)

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“…Figure 3.3b shows a second case when time to execute both necessary tasks is greater than the required sampling period. Thus, the controller will cause the delays which have significant influence to the system stability [12] [13]. Therefore, this delay could be known which allows its partially compensating by using several methods [14].…”

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confidence: 99%

Study of different load dependencies among shared redundant systems

Galdun

Thiriet

Ligus

2008

2008 International Multiconference on Computer Science and Information Technology

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Abstract. The paper presents features and implementation of a shared redundant approach to increase the reliability of networked control systems. Common approaches based on redundant components in control system use passive or active redundancy. We deal with quasi-redundant subsystems (shared redundancy) whereas basic features are introduced in the paper. This type of redundancy offers several important advantages such as minimizing the number of components as well as increasing the reliability. The example of a four-rotor mini-helicopter is presented in order to show reliability improving without using any additional redundant components. The main aim of this paper is to show the influence of the load increasing following different scenarios. The results could help to determine the applications where quasi-redundant subsystems are a good solution to remain in a significant reliability level even if critical failure appears.

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