Two level control system for FMS - an object oriented approach

Iliev, O.L.; Percinkova, B.; Gough, N.E.; Zakeri, Ahmad

doi:10.1016/s1474-6670(17)56064-4

Cited by 2 publications

(3 citation statements)

References 13 publications

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“…This approach is intuitive, input and output variables are linguistically described, and design of control algorithm is primarily based on if-then-else rules. Fuzzy Logic Controllers are widely used in different engineering areas [21], [8], [9], [10], [7] including AI, Expert systems, Robotics and Biotechnology. There are few researches in applying this promising method into control of greenhouses [2], [5], [14].…”

Section: Fuzzy Logic Based Control Designmentioning

confidence: 99%

“…Fuzzy logic controllers are widely used in different engineering areas (Zadeh, 1993;Iliev et al, 1996a;Iliev et al, 1999;Horiuchi, 2002), including AI, expert systems, robotics and biotechnology. There are few researches in applying this promising method into control of greenhouses (Baturone et al, 2005;Dozier et al, 2001;Mitra et al, 2008).…”

Section: Fuzzy Logic-based Control Designmentioning

confidence: 99%

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A fuzzy logic-based controller for integrated control of protected cultivation

Iliev

Sazdov

Zakeri

2014

Management of Environmental Quality: An International Journal

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In terms of systems theory, the greenhouse represents a complex nonlinear system with emphasized subsystem interactions. System decoupling is used in order to obtain simplified control structures for independent control loops. This gives limited results because of the strong interaction between system variables. Such system does not allow system behaviour optimization primarily in terms of energy efficiency and/or water consumption. This paper presents a design of fuzzy logic based controller, which optimizes the Greenhouse heating, energy and water consumption. The design includes the main linguistic variables for sensors and actuators. Membership functions of Fuzzy Inference System (FIS) are generated and simulation and analysis of the behaviour of the designed control system is performed.

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Section: Fuzzy Logic Based Control Designmentioning

confidence: 99%

Section: Fuzzy Logic-based Control Designmentioning

confidence: 99%

A fuzzy logic-based controller for integrated control of protected cultivation

Iliev

Sazdov

Zakeri

2014

Management of Environmental Quality: An International Journal

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“…The company survival must lie in constant product innovation, low-cost product customization, improved customer service, and delivering the product which best meets customer requirements. Due to globalization, these trends will even increase in the future [14]. It is very difficult to estimate what will be the business requirements in the 21st century, but the current requirements of producing goods of a specific quality at low costs will certainly remain.…”

Section: Introductionmentioning

confidence: 99%

Intelligent Supervisory Control of Discrete Event Systems - A Holon based Approach

Iliev¹,

Jakimovski²,

Zakeri³

2016

ERSICT

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Abstract. Supervisory Control of Discrete Event Systems (DEVS) requires potential capabilities for constant adaptation and fast responses to the frequent unexpected disturbances occur in process and changes in production orders. Both hierarchical and heterarchical architecture control systems being developed so far have had limited success in achieving such potential capabilities. Hierarchical architecture systems due to their rigid structures inhibit inadequate responses to the process disturbances. Heterarchical architecture systems are quite good in dealing with the disturbances and are highly adaptable, but such structures cannot guarantee high performance due to unpredictable behavior. The shortcomings of the said systems develops the need for designing Holon based structure in which entities are able to communicate, cooperate, and have certain level of intelligence that enable them to be highly autonomous. In this paper we present a methodology that encapsulates individual needs of the physical layer, in general discrete event objects, in order to promote a goal orientated infrastructure with negotiation and cooperation capabilities at the computational layer of Discrete Event Systems. This methodology propagates chains of cooperation between holons seeking satisfactory goal realization. Architecture for a Holonic-based intelligent Supervisory Control of DEVS has been proposed along with a guideline for its product ionisation. The newly proposed taxonomy of individual holons occurring in a discrete event system as a supervisory controller will allow to understand interaction mechanisms in a complex Holon's society, and to obtain design methodology for a Holonic based control of DEVS.

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Two level control system for FMS - an object oriented approach

Cited by 2 publications

References 13 publications

A fuzzy logic-based controller for integrated control of protected cultivation

A fuzzy logic-based controller for integrated control of protected cultivation

Intelligent Supervisory Control of Discrete Event Systems - A Holon based Approach

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