Environmental Control for Plants Using Intelligent Control Systems

Environmental Control for Plants Using Intelligent Control Systems
Author: Ibrahim A. Hameed
Publisher: GRIN Verlag
Total Pages: 153
Release: 2012-03
Genre: Computers
ISBN: 3656152454

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Master's Thesis from the year 2005 in the subject Engineering - Artificial Intelligence, grade: MSc, course: Intelligent Control, language: English, abstract: [...] In practice, conventional controllers were used to control the system however their parameters are empirically adjusted. Besides, the operation of these controllers relies on the measurements provided by sensors located inside and near the greenhouse. If the information provided by one or several of these sensors is erroneous, the controllers will not operate properly. Similarly, failure of one or several of the actuators to function properly will impair the greenhouse operation. Therefore, an automatic diagnosis system of failures in greenhouses is proposed. The diagnosis system is based on deviations observed between measurements performed in the system and the predictions of a model of the failure-free system. This comparison is done through a bank of fuzzy observers, where each observer becomes active to a specific failure signature and inactive to the other failures. Neural networks are used to develop a model for the failure-free greenhouse. The main objective of this thesis is to explore and develop intelligent control schemes for adjusting the climate inside a greenhouse. The thesis employs the conventional Pseudo- Derivative Feedback (PDF) Controller. It develops the fuzzy PDF controller (FPDF). The thesis also, develops two genetic algorithm (GA) based climatic control schemes, one is genetic PDF (GPDF) and the other is genetic FPDF (GFPDF). The former uses GA to adjust the gains of the Pseudo-Derivative Feedback Controller (GPDF) and the later uses genetic algorithm to optimize the FPDF controller parameters (i.e., scale factors and/or parameters of the membership functions). Finally, the thesis develops a fuzzy neural fault detection and isolation system (FNFDIS), in which a bank of fuzzy observers are designed to detect faults that m

Greenhouse Design and Control

Greenhouse Design and Control
Author: Pedro Ponce
Publisher: CRC Press
Total Pages: 382
Release: 2014-09-11
Genre: Science
ISBN: 1138026298

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Agricultural production is one of the main keys to the development of healthy societies. It is anticipated that agricultural systems will increasingly have to contend with temperature, humidity and water stress in the near future. This makes the need to increase the efficiency of land and water use ever more urgent. The control and design of greenhouses allows to increase dramatically the quality of crops and extend the cultivation period year-round. A properly designed autonomous greenhouse based on hydroponics can greatly reduce the amounts of nutrients and energy expended in agricultural production. This book deals with different types of greenhouses, materials, structures, advanced control techniques and tendencies that are needed for designing and controlling an advanced greenhouse. The control system is presented as an integral system which covers the explanation of basic and advanced concepts for a real time controller. Also, structural analysis is introduced, whereby mechanical design is regarded as a key factor. The book incorporates simulations and experimental results, and utilizes LabVIEW and ADAMS software. Finally, it provides a perspective on the present state and future of greenhouses globally. Written in a highly accessible manner, this book will prove useful to horticulturalists, agricultural engineers, greenhouse engineers and designers. Its easy-to-absorb contents are also suitable for (under)graduate students and researchers in agricultural and electronic engineering, horticulture, crop cultivation and soft computing.

Intelligent Control Systems Using Computational Intelligence Techniques

Intelligent Control Systems Using Computational Intelligence Techniques
Author: A.E. Ruano
Publisher: IET
Total Pages: 478
Release: 2005-07-18
Genre: Computers
ISBN: 0863414893

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Intelligent Control techniques are becoming important tools in both academia and industry. Methodologies developed in the field of soft-computing, such as neural networks, fuzzy systems and evolutionary computation, can lead to accommodation of more complex processes, improved performance and considerable time savings and cost reductions. Intelligent Control Systems using Computational Intellingence Techniques details the application of these tools to the field of control systems. Each chapter gives and overview of current approaches in the topic covered, with a set of the most important references in the field, and then details the author's approach, examining both the theory and practical applications.

High-Tech and Micropropagation I

High-Tech and Micropropagation I
Author: Y. P. S. Bajaj
Publisher: Springer Science & Business Media
Total Pages: 570
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 3642764150

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Presented here is another classic from this series and deals with general aspects of micropropagation of plants for commercial exploitation. It includes chapters on setting up a commercial laboratory, meristem culture, somatic embryogenesis, factors affecting micropropagation, disposable vessels, vitrification, acclimatization, induction of rooting, artificial substrates, cryopreservation and artificial seed. Special emphasis is given on modern approaches and developing technologies such as automation and bioreactors, robots in transplanting, artificial intelligence, information management and computerized greenhouses for en masse commercial production of plants.

Intelligent Control: Principles, Techniques And Applications

Intelligent Control: Principles, Techniques And Applications
Author: Zixing Cai
Publisher: World Scientific
Total Pages: 469
Release: 1997-12-18
Genre: Technology & Engineering
ISBN: 9814499323

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This book introduces the development process, structural theories and research areas of intelligent control; explains the knowledge representations, searching and reasoning mechanisms as the fundamental techniques of intelligent control; studies the theoretical principles and architectures of various intelligent control systems; analyzes the paradigms of representative applications of intelligent control; and discusses the research and development trends of the intelligent control.From the general point of view, this book possesses the following features: updated research results both in theory and application that reflect the latest advances in intelligent control; closed connection between theory and practice that enables readers to use the principles to their case studies and practical projects; and comprehensive materials that helps readers in understanding and learning.

Modeling and Control of Greenhouse Crop Growth

Modeling and Control of Greenhouse Crop Growth
Author: Francisco Rodríguez
Publisher: Springer
Total Pages: 275
Release: 2014-11-01
Genre: Technology & Engineering
ISBN: 3319111345

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A discussion of challenges related to the modeling and control of greenhouse crop growth, this book presents state-of-the-art answers to those challenges. The authors model the subsystems involved in successful greenhouse control using different techniques and show how the models obtained can be exploited for simulation or control design; they suggest ideas for the development of physical and/or black-box models for this purpose. Strategies for the control of climate- and irrigation-related variables are brought forward. The uses of PID control and feedforward compensators, both widely used in commercial tools, are summarized. The benefits of advanced control techniques—event-based, robust, and predictive control, for example—are used to improve on the performance of those basic methods. A hierarchical control architecture is developed governed by a high-level multiobjective optimization approach rather than traditional constrained optimization and artificial intelligence techniques. Reference trajectories are found for diurnal and nocturnal temperatures (climate-related setpoints) and electrical conductivity (fertirrigation-related setpoints). The objectives are to maximize profit, fruit quality, and water-use efficiency, these being encouraged by current international rules. Illustrative practical results selected from those obtained in an industrial greenhouse during the last eight years are shown and described. The text of the book is complemented by the use of illustrations, tables and real examples which are helpful in understanding the material. Modeling and Control of Greenhouse Crop Growth will be of interest to industrial engineers, academic researchers and graduates from agricultural, chemical, and process-control backgrounds.

Plant Factory

Plant Factory
Author: Toyoki Kozai
Publisher: Academic Press
Total Pages: 516
Release: 2019-11-03
Genre: Business & Economics
ISBN: 0128166924

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Plant Factory: An Indoor Vertical Farming System for Efficient Quality Food Production, Second Edition presents a comprehensive look at the implementation of plant factory (PF) practices to yield food crops for both improved food security and environmental sustainability. Edited and authored by leading experts in PF and controlled environment agriculture (CEA), the book is divided into five sections, including an Overview and the Concept of Closed Plant Production Systems (CPPS), the Basics of Physics and Physiology – Environments and Their Effects, System Design, Construction, Cultivation and Management and Plant Factories in Operation. In addition to new coverage on the rapid advancement of LED technology and its application in indoor vertical farming, other revisions to the new edition include updated information on the status of business R&D and selected commercial PFALs (plant factory with artificial lighting). Additional updates include those focused on micro and mini-PFALs for improving the quality of life in urban areas, the physics and physiology of light, the impact of PFAL on the medicinal components of plants, and the system design, construction, cultivation and management issues related to transplant production within closed systems, photoautotrophic micro-propagation and education, training and intensive business forums on PFs. Includes coverage of LED technology Presents case-studies for real-world insights and application Addresses PF from economics and planning, to operation and lifecycle assessment

Intelligent Control for Agricultural Applications 2001

Intelligent Control for Agricultural Applications 2001
Author: H.K. Purwadaria
Publisher: Pergamon
Total Pages: 340
Release: 2002-05-14
Genre: Technology & Engineering
ISBN:

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This Proceedings contains the papers presented at the second IFAC-CIGR Workshop on Intelligent Control For Agricultural Applications, held in Bali, Indonesia, 22-24 August 2001. The workshop provided a forum for the presentation and discussion of new results and approaches in the area of intelligent control application in agriculture and industry. The topics covered in the Proceedings range from precision farming to applications of control, neural networks and fuzzy algorithms in greenhouse technology, agricultural production and industrial processes. Also covered are quality evaluation using non-destructive methods such as ultrasonic, visible light and near infrared reflectance (NIR), as well as agricultural commodities, including fishery products as well as plants. Altogether over 50 papers are presented, including keynote papers by leading world experts.

Intelligent Modeling, Diagnosis And Control Of Manufacturing Processes

Intelligent Modeling, Diagnosis And Control Of Manufacturing Processes
Author: B-t Chu
Publisher: World Scientific
Total Pages: 273
Release: 1992-08-31
Genre: Phase space (Statistical physics)
ISBN: 9814520446

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This volume demonstrates that the key to the modeling, diagnosis and control of the next generation manufacturing processes is to integrate knowledge-based systems with traditional techniques. An up-to-date study is given here of this relatively recent development.The book is for those working primarily with traditional techniques and those working in the knowledge-based systems field. Both sets of readers will find it to be a source of many specific ideas about the integration of knowledge-based systems with traditional techniques, and carrying a wealth of useful references.

Intelligent Control Systems with an Introduction to System of Systems Engineering

Intelligent Control Systems with an Introduction to System of Systems Engineering
Author: Thrishantha Nanayakkara
Publisher: CRC Press
Total Pages: 441
Release: 2018-09-03
Genre: Technology & Engineering
ISBN: 1420079255

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From aeronautics and manufacturing to healthcare and disaster management, systems engineering (SE) now focuses on designing applications that ensure performance optimization, robustness, and reliability while combining an emerging group of heterogeneous systems to realize a common goal. Use SoS to Revolutionize Management of Large Organizations, Factories, and Systems Intelligent Control Systems with an Introduction to System of Systems Engineering integrates the fundamentals of artificial intelligence and systems control in a framework applicable to both simple dynamic systems and large-scale system of systems (SoS). For decades, NASA has used SoS methods, and major manufacturers—including Boeing, Lockheed-Martin, Northrop-Grumman, Raytheon, BAE Systems—now make large-scale systems integration and SoS a key part of their business strategies, dedicating entire business units to this remarkably efficient approach. Simulate Novel Robotic Systems and Applications Transcending theory, this book offers a complete and practical review of SoS and some of its fascinating applications, including: Manipulation of robots through neural-based network control Use of robotic swarms, based on ant colonies, to detect mines Other novel systems in which intelligent robots, trained animals, and humans cooperate to achieve humanitarian objectives Training engineers to integrate traditional systems control theory with soft computing techniques further nourishes emerging SoS technology. With this in mind, the authors address the fundamental precepts at the core of SoS, which uses human heuristics to model complex systems, providing a scientific rationale for integrating independent, complex systems into a single coordinated, stabilized, and optimized one. They provide readers with MATLAB® code, which can be downloaded from the publisher's website to simulate presented results and projects that offer practical, hands-on experience using concepts discussed throughout the book.