... 1 Autonomous Room Air Cooler Using Fuzzy Logic Control System M. Abbas, M. Saleem Khan, Fareeha Zafar Abstract— This research paper describes the design and implementation of an autonomous room air cooler using fuzzy rule based control system. The rule base receives two crisp input values from temperature and humidity sensors, divides the universe of discourse into regions with each region containing two fuzzy variables, fires the rules, and gives the output singleton values corresponding to each output variable. Three defuzzifiers are used to control the actuators; cooler fan, water pump and room exhaust fan. The results obtained from the simulation were found correct according to the design model. This research work will increase the capability of fuzzy logic control systems in process automation with potential benefits. MATLAB-simulation is used to achieve the designed goal. Index Terms— Fuzzy Logic Control, Inference Engine, MATLAB simulation and Rule Selection. —————————— —————————— 1 INTRODUCTION ODERN processing systems are heavily dependent on automatic control systems. The control automation has become essential for machines and processes to run successfully for the achievement of consistent operation, better quality, reduced operating costs, and greater safety. The control system design, development and implementation need the specification of plants, machines or processes to be controlled. A control system consists of controller and plant, and requires...
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...Fuzzy Control Kevin M. Passino Department of Electrical Engineering The Ohio State University Stephen Yurkovich Department of Electrical Engineering The Ohio State University An Imprint of Addison-Wesley Longman, Inc. Menlo Park, California • Reading, Massachusetts Don Mills, Ontaria • Sydney • Bonn • Harlow, England • Berkeley, California • Amsterdam • Mexico City ii Assistant Editor: Laura Cheu Editorial Assistant: Royden Tonomura Senior Production Editor: Teri Hyde Marketing Manager: Rob Merino Manufacturing Supervisor: Janet Weaver Art and Design Manager: Kevin Berry Cover Design: Yvo Riezebos (technical drawing by K. Passino) Text Design: Peter Vacek Design Macro Writer: William Erik Baxter Copyeditor: Brian Jones Proofreader: Holly McLean-Aldis Copyright c 1998 Addison Wesley Longman, Inc. All rights reserved. No part of this publication may be reproduced, or stored in a database or retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Printed in the United States of America. Printed simultaneously in Canada. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and AddisonWesley was aware of a trademark claim, the designations have been printed in initial caps or in all caps. MATLAB is a registered trademark of The MathWorks...
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...stages of product design. The project is on schedule and an example of the programs functions and use of control structures will be introduced as we discuss the program updates. Part Number Input Module One of the major functions of the program will not only be footage production, which will be discussed in later program development reports but also part number tracking. Tracking what part number is ran within each run will provide a historical database for analysis providing improved inventory control procedures. The data will be tracked as currently tracked on paper but stored digitally into a database. This process can be realized within the program by the utilization of control structures and iteration control structures. Control Structures As discussed within (Venit & Drake, 2011) a selection control structure gives a computer the ability to take a defensive stance against incorrect data, which forces users to enter valid data as the input. Selection control structures additionally offer users the ability to make a decision within a program as discussed in (Venit & Drake, 2011). Without these control structures in place programs would be a strict point A to point B sequence with no data error checking capability. The standard control structure within this program offers users an option between multiple program functions. The functions in the example provided include asking the user if more information is needed after...
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...Speed Control of Induction Motor using Fuzzy Logic Approach A PROJECT THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Bachelor of Technology In Electrical Engineering By Varuneet Varun (Roll 108EE011) G. Bhargavi (Roll 108EE026) Suneet Nayak (Roll 108EE044) Under Supervision of Prof. Kanungo Barada Mohanty Department of Electrical Engineering National Institute of Technology, Rourkela Rourkela- 769008, Odisha © 2011 - 2012 National Institute of Technology Rourkela Certificate This is to certify that the work contained in this thesis, titled “SPEED CONTROL OF INDUCTION MOTOR USING FUZZY LOGIC APPROACH” submitted by Varuneet Varun, G. Bhargavi and Suneet Nayak is an authentic work that has been carried out by them under my supervision and guidance in partial fulfillment for the requirement for the award of Bachelor of Technology Degree in Electrical Engineering at National Institute of Technology, Rourkela. To the best of my knowledge, the matter embodied in the thesis has not been submitted to any other University/ Institute for the award of any Degree or Diploma. Place: Rourkela Date: 11th May, 2012 Dr. Kanungo Barada Mohanty Associate Professor Department of Electrical Engineering National Institute of Technology Rourkela – 769008 i Acknowledgment We are grateful to The Department of Electrical Engineering for giving us the opportunity to carry out this project, which is an integral...
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...Input Controls Assignment 3 Roseana Clark | CIS 210 Professor Nancy Romero | 11/15/2014 Application controls are used to refer to transactions and any data that relates to the computer based application system. They should be kept specific to each application. Application controls may be manual or programmed, but are necessary in the support of record accuracy as well as data validity. These controls are used in processing, output and input. The application controls will ensure the data is complete, accurate, and valid. This is where input controls assist in maintaining these goals. An input is a graphic the server displays with the report. The function of the input control will support the data is complete, accurate, and valid. The procedures include asking the user for input, validating its format, and then passing it to the report. When you create and name an input control, you would assign a predefined data type for the user to enter. The data types will define the input, as well as any restrictions the server enforces. The server uses the predefined data type to classify and validate the data. If the data type is named and the server cannot find a parameter by the same name, when the report runs, the input control will not function. Input controls are an essential part to designing a form. They will allow the user to perform any input functions. These functions may include typing in text, or to select items from a list, or even uploading a file. ...
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...Relion® 615 series Transformer Protection and Control RET615 Product Guide Transformer Protection and Control RET615 Product version: 5.0 1MRS756891 H Contents 1. Description.....................................................................3 16. Inputs and outputs......................................................21 2. Standard configurations.................................................3 17. Station communication................................................22 3. Protection functions......................................................14 18. Technical data.............................................................27 4. Application...................................................................14 19. Local HMI....................................................................49 5. Supported ABB solutions.............................................18 20. Mounting methods......................................................50 6. Control.........................................................................19 21. IED case and IED plug-in unit......................................50 7. Measurements.............................................................20 22. Selection and ordering data.........................................50 8. Disturbance recorder....................................................20 23. Accessories and ordering data....................................51 9. Event log...
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...Using the Output Compare & Input Capture Functions on the HC12 Dr. Stephen Canfield, TTU ME Dept. 9/25/03 RLH Introduction: (From Cady and Sibigtroth, 2000). The Input Capture (IC) and Output Compare (OC) functions are an important part of the HC12 timer system. Port T is the IC/OC external register and TIOS is the Timer Input Capture/Output Compare Select register. The input capture generates an interrupt on a rising or falling edge of an input signal and captures the current value of TCNT on this event. Examples of uses of the IC function include counting events and timing events. The output compare generates an interrupt when the free-running counter (TCNT) is equal to a 16 bit value stored in one of the Timer Output Compare Register. In addition to generating the interrupt, the state of the associated output pin can be controlled to go low, high or toggle. Examples of uses of the OC function include generating a wave form with desired frequency and duty cycle or making precise timing applications. Output Compare: When a pin on Port T is programmed as an output compare pin, a value is loaded into the corresponding Timer Input Capture/Output Compare register (TCn) for comparison with TCNT. When a successful comparison is made (between TCn and TCNT), one of four actions may occur at the output pin in Port T. It can be disconnected, toggled, cleared or set. In addition, an interrupt request is generated which may be serviced in an ISR (refer to discussion...
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...The function of input controls are: Making sure the data is accurate, complete and secure. also must have a good quality and gets entered in timely manner. An input device is any piece of hardware that provides data and controls various signals as they process through computer. if a computer did not use any input devices, users would watch the activity, as opposed to interacting with it. Each type of input device serves its own purpose, ranging from a simple pointing device to a webcam. Since there is always a human factor involved when it comes to entering in data, technology must be developed which can assist with overseeing and cross checking the information being entered against other information's such as databases, formulas or whatever other criteria is decided upon. one way of capturing input is through a source document or form. This form collects the input data and authorizes an action which then provides a record of the original transactions. These forms are typically designed in the beginning during the "input design stage" but can be changed later during their design to meet more specific needs. It wasn't too long ago that source documents were mainly paper based but now many of them have become web or online interfaces. it is important for the forms being used to have the correct layout and appearance in order to properly convey to the end user what information to enter into the computer. A well laid out form should have proper spacing and margins and have enough...
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...circuit. The best way of investigating an electronic system is to monitor signals at the input and output of each system block, checking that each block is operating as expected and is correctly linked to the next. With a little practice, we will be able to find and correct faults quickly and accurately. The screen of a CRO is very similar to a TV, except it is much simpler. We will not go into the similarities except to say that the "picture tube" on a TV and the "screen" on a CRO are both a special type of valve called a Cathode Ray Tube. It is a vacuum tube with a cathode (negative electrode) at one end that emits electrons and anodes (positive electrodes) to accelerate the electron beam up/down and left/right to hit a phosphor coating at the end of the tube, called the screen. The electrons are called cathode rays because they are emitted by the cathode and this gives the oscilloscope its full name: Cathode Ray Oscilloscope or CRO. Internal Components 1. An indirectly heated cathode which provides a source of electrons for the beam by "boiling" them out of the cathode. 2. The anode (or plate) which is circular with a small central hole. The potential of P creates an electric field which accelerates the electrons, some of which emerge from the hole as a fine beam. This beam lies along the central axis of the tube. 3. The grid: Controlling the potential of the grid controls the number of electrons for the beam, and hence the intensity of the spot on the screen...
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...[Fourier analysis of Control System] [Fourier analysis of Control System] Submitted to: Dr. S. K. Raghuwanshi Submitted By: Rishi Kant Sharan Semester: V Branch: Electronics & Communication Engineering Submitted to: Dr. S. K. Raghuwanshi Submitted By: Rishi Kant Sharan Adm. No: 2010JE1117 Semester: V Branch: Electronics & Communication Engineering Abstract The assignment focuses on the Fourier analysis of Control System. Which leads to frequency domain analysis of control system. The scope of estimation and controlling the behavior a system by means of Fourier transformation of its transfer function and analyzing its frequency response. Abstract The assignment focuses on the Fourier analysis of Control System. Which leads to frequency domain analysis of control system. The scope of estimation and controlling the behavior a system by means of Fourier transformation of its transfer function and analyzing its frequency response. ACKNOWLEDGEMENT There is an old adage that says that you never really learn a subject until you teach it. I now know that you learn a subject even better when you write about it. Preparing this term paper has provided me with a wonderful opportunity to unite my love of concept in CONTROL SYSTEM. This term paper is made possible through the help and support from everyone, including: professor, friends, parents, family, and in essence, all sentient beings. Especially, please allow me to dedicate...
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...1 INTRODUCTION Control engineering has evolved over time. In the past humans were the main method for controlling a system. More recently electricity has been used for control and early electrical control was based on relays. These relays allow power to be switched on and off without a mechanical switch. It is common to use relays to make simple logical control decisions. The development of low cost computer has brought the most recent revolution, the Programmable Logic Controller (PLC). The advent of the PLC began in the 1970s, and has become the most common choice for manufacturing controls. PLCs have been gaining popularity on the factory floor and will probably remain predominant for some time to come. Most of this is because of the advantages they offer. • Cost effective for controlling complex systems. • Flexible and can be reapplied to control other systems quickly and easily. • Computational abilities allow more sophisticated control. • Trouble shooting aids make programming easier and reduce downtime. • Reliable components make these likely to operate for years before failure. 2.1.1 Ladder Logic Ladder logic is the main programming method used for PLCs. As mentioned before, ladder logic has been developed to mimic relay logic. The decision to use the relay logic diagrams was a strategic one. By selecting ladder logic as the main programming method, the amount of retraining needed for engineers and tradespeople was greatly reduced. Modern control systems still include...
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...belts must be protected with securely mounted metal guards that are of sufficient thickness to provide protection against flying particles such as keys, bolts and coupling parts. Even when the motor is stopped, it should be considered “alive” as long as its controller is energized. Automatic circuits may start the motor at any time. Keep hands away from the output shaft until the motor has completely stopped and power is disconnected from the controller. Motor control equipment and electronic controls are connected to hazardous line voltages. When servicing drives and electronic controls, there will be exposed components at or above line potential. Extreme care should be taken to protect against shock. Stand on an insulating pad and make it a habit to use only one hand when checking components. Always work with another person in case of an emergency. Disconnect power whenever possible to check controls or to perform maintenance. Be sure equipment is properly grounded. Wear safety glasses whenever working on electric control or rotating equipment. The drive must be disconnected from the AC line before any service work is done. The...
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...called controls.” These controls are commonly referred to as input controls, according to the World Wide Web Consortium. There are many types of input controls that can be used in a web form. They help to provide a framework for the kind of data that will be submitted by users. Selecting the correct input control for a data field is critical. Text input, select box, radio button, and checkboxes are four examples of input controls. As pointed out by Ponce de Leon, most input controls are visual and interactive. There is also something called a hidden input control. They can be used to store system critical data, such as database key data, that the user does not need to interact with. Text type input controls are used to input text. They provide a single-line input field in which any text can be entered. The text type input controls are useful for form data such as names, street addresses, and user names. This data is viewable on the screen, so it ought to not be used for passwords. In user interface design, input controls are an integral part of any form and allows users to perform a variety of functions to ensure that input data is correct complete and secure. Data input controls ensure the accuracy, completeness, and timeliness of data during its conversion from its original source into computer data, or into a computer application. Data can be entered into a computer application from either manual online input or by scheduled automated processing. The input control designer...
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...Assignment 3: Input Controls CIS 210 – Systems Analysis and Development Ibrahim Elhag Marc Espos November 12, 2013 In the realm of input security and control, input controls allow users to perform various commands to ensure that the date is correct, complete, and cohesive. When data is entered from an application or automated process, the computer can produce an input log file that identifies and documents the data entered. As a system analyst must determine the importance of automatized and manual controls over data being transpired. Another important aspect a system analyst must determine is to promote data accuracy and quality. Overall the main purpose of this system is to serve as a checkpoint towards ensuring that the data is entered into the system correctly. One thing to consider is that there are numerous types of input controls. Also that most input controls are designed to be visual and interactive. Some of these input controls are: text boxes, drop-down list box, input masks, and validation rules. The first input control is text boxes. The standard textbox displays messages or provides a place for a user to enter data. These messages usually include entities of zip codes, addresses, cities, numbers, names, and serial codes. Once a form is submitted, a script can change the structure of a textbox. When designing a text box, the designer should implement the function called auto complete function. The purpose of this...
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...quick start. Breakdown of Specs • Input Jacks XLR-3-31 Female x16 / -62dBu -+ dBu. • Omni Out Jacks XLR-3-32 Male x8/ Matrix/Mix output level +4 dBu. • Slots x1 = mini YGDAI (each card holds 16 channels. Sold separately). • Network connector = Windows PC Via a CAT 3 (transfer rate 10Mbps) or CAT5 (Max 100 Mbps) Ethernet cable. • Word clock in/out connectors. • 2TR Out Digital Jack. • 2TR In Digital Jack. • MIDI In/Out. • AC Connector. • Power Switch. • Ground Screw. • Cooling Vent. • Phones Level Control. • Phones Out. Functions of the LS9 This section is a brief breakdown of the devices functions; what are they, what are they used for & how to use them. Some of the functions are similar to other sound desks so explanations of depth are not required. Any queries of functions that aren’t explained in this guide can be searched for in the Yamaha LS9 manual: http://www.yamaha.co.jp/manual/english/result.php?WORD=ls9&div=pa Breakdown Channel Mode Section This section of the desk controls the main parameters of the input/outout channels along with any monitor outputs too. In conjunction with this, the LAYER section is used to select channels that will be used for this section. Functions of this section • ‘SEL’ Key This key is to highlight what channel is to be operated. • ‘Cue’ Key This selects the channel to be cue-monitored. • Meter LEDs This displays the audio signal level of the input/output channels. • ‘On’ Key Basically switches...
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