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A real-time operating system supporting distributed shared memory for embedded control systems

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Pubblicato in:Cluster Computing vol. 22 (Jan 2019), p. 989
Autore principale: Tamura, Yuji
Altri autori: Doan, Truong Thi, Chiba, Takahiro, Yoo, Myungryun, Yokoyama, Takanori
Pubblicazione:
Springer Nature B.V.
Soggetti:
Operating systems
Data transfer (computers)
Software
Source code
Control algorithms
Control systems design
Communication
Controllers
Variables
Distributed control systems
Design
Embedded systems
Time Division Multiple Access
Modules
Time synchronization
Real time
Distributed memory
Distributed processing
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Abstract:The paper presents a real-time operating system (RTOS) that provides a distributed shared memory (DSM) service for distributed embedded control systems. Model-based design is widely adopted in embedded control software design and the source code of software modules can be generated from a controller model. The generated software modules exchange their input and output values through shared variables. We develop a RTOS with a DSM service to provide a location-transparent environment, in which distributed software modules can exchange input and output values through the DSM. The RTOS is an extension to OSEK OS. We use a real-time network called FlexRay, which is based on a time division multiple access (TDMA) protocol. The consistency of the DSM is maintained according to the order of data transfer through FlexRay, not using inter-node synchronization. The worst case response time of the DSM is predictable if the FlexRay communication is well configured.
ISSN:1386-7857
1573-7543
DOI:10.1007/s10586-017-1140-9
Fonte:Advanced Technologies & Aerospace Database