Synthesis of sampling modes for adaptive control

Raha, Rajorshee ; Hazra, Aritra ; Mondal, Akash ; Dey, Soumyajit ; Chakrabarti, Partha Pratim ; Dasgupta, Pallab (2014) Synthesis of sampling modes for adaptive control In: 2014 IEEE International Conference on Control System, Computing and Engineering (ICCSCE), 28-30 November 2014, Penang, Malaysia.

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Recent studies have shown that adaptively regulating the sampling rate results in significant reduction in the computational resources of embedded software based control. Selecting a uniform sampling rate for a control loop is robust, but pessimistic for sharing processors among multiple control loops. Fine-grained regulation of periodicity achieves better resource utilization, but is hard to implement online in a robust way. However, an offline control theoretic analysis of the system illustrates the benefits of proper period selection for different modes. Such analysis reveals the necessity to automatically derive a multi-mode scheduler and converge on suitable periods for each mode. This paper proposes a methodology to automatically generate such a scheduler for an embedded real-time control system leveraging its design attributes. The proposed method provides significant gains in computational efficiency without trading off the performance.

Item Type:Conference or Workshop Item (Paper)
Source:Copyright of this article belongs to Institute of Electrical and Electronics Engineers.
Keywords:Automata; Switches; Stability Criteria; Vehicles; Frequency Control
ID Code:101586
Deposited On:12 Dec 2016 11:21
Last Modified:12 Dec 2016 11:21

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