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Scheduling and reconfiguration of re...

Wang, Xi.

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Scheduling and reconfiguration of real-time systems = a supervisory control approach /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Scheduling and reconfiguration of real-time systems/ by Xi Wang, ZhiWu Li.
其他題名:	a supervisory control approach /
作者:	Wang, Xi.
其他作者:	Li, ZhiWu.
出版者:	Cham :Springer International Publishing : : 2023.,
面頁冊數:	xix, 205 p. :illustrations, digital ;24 cm.
內容註:	Introduction -- Preliminaries of Supervisory Control Theory -- Real-Time Scheduling and Reconfiguration -- Non-Preemptive Scheduling/Reconfiguration Based on Supervisory Control of TDES -- Priority-Free Conditionally-Preemptive Real-Time Scheduling Based on R-W Method -- Modular Scheduling/Reconfiguration with Exact Execution Time Based on R-W Method -- Scheduling/Reconfiguration Based on Supervisory Control of STS -- Conclusion and Future Work.
Contained By:	Springer Nature eBook
標題:	Real-time control. -
電子資源:	https://doi.org/10.1007/978-3-031-41969-0
ISBN:	9783031419690

Scheduling and reconfiguration of real-time systems = a supervisory control approach /
Wang, Xi.

Scheduling and reconfiguration of real-time systemsa supervisory control approach /[electronic resource] :by Xi Wang, ZhiWu Li. - Cham :Springer International Publishing :2023. - xix, 205 p. :illustrations, digital ;24 cm.

Introduction -- Preliminaries of Supervisory Control Theory -- Real-Time Scheduling and Reconfiguration -- Non-Preemptive Scheduling/Reconfiguration Based on Supervisory Control of TDES -- Priority-Free Conditionally-Preemptive Real-Time Scheduling Based on R-W Method -- Modular Scheduling/Reconfiguration with Exact Execution Time Based on R-W Method -- Scheduling/Reconfiguration Based on Supervisory Control of STS -- Conclusion and Future Work.

This book presents a methodology for the real-time scheduling problems of real-time systems (RTS) from the viewpoint of control theory. Generally, any system can be viewed as an RTS if it performs real-time application functions and behaves correctly depending on given logical activities and satisfying specified deadlines for the activities. This monograph provides broad views and detailed introductions to supervisory control theory (SCT) and its application in real-time scheduling and reconfiguration. Based on three popular SCT modelling frameworks, discrete-event system (DES), timed DES (TDES), and state-tree structures (STS), the authors provide RTS modelling frameworks; thereafter, SCT is used to find their safe execution sequences. As the main contribution, we use (untimed) DES events to represent the execution and preemption of each individual RTS task. This modelling formalism brings the possibilities to model the preemptions of tasks' executions. Furthermore, in some cases, priorities cannot be assigned to real-time tasks. In order to solve this problem, a matrix-based priority-free conditional-preemption (PFCP) relation is provided, which generalizes fixed-priority (FP) RTS scheduling. As a natural extension, a generalized modular modelling framework is presented to model the task parameters instead of the global real-time task. The modular models are taken to be generic entities, which also considers the exact execution time of real-time tasks. STS are undoubtedly recognized as a computationally efficient SCT framework which manages the state explosion problem significantly. Hence, building on the (untimed) modular RTS models, a novel STS-based RTS modeling framework is formulated, by assigning dynamic priorities as specified optimality criteria, which can be utilized to model sporadic RTS processing both sporadic and (multi-period) periodic tasks, providing a small set of the safe execution sequences which rank at the top.

ISBN: 9783031419690

Standard No.: 10.1007/978-3-031-41969-0doiSubjects--Topical Terms:

653323
Real-time control.

LC Class. No.: TJ217.7

Dewey Class. No.: 629.89

Scheduling and reconfiguration of real-time systems = a supervisory control approach /
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