624 research outputs found

    Efficient authorized access security system control using ATMEL 89C55 & mobile bluetooth

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    Security is gaining awareness and importance in recent years. Authorized Access Security System (AASS) is a network device for validating, monitoring and controlling the security within buildings. Today, they are many building that are using security access approach to protect the building from unauthorized access. In this paper a low cost electronic system has been designed which can control different locking mechanisms. Low operating power consumption, small circuit, flexible mechanical design and user friendly interface are the salient features of this security system. The system implemented to meet both of these needs uses a user-friendly high-security interface that allows users to access an alarmed area, and authorized users to have field control of the access lists to that alarmed area. The paper presents the technology of Authorized Access Security System. This technology uses ATMEL 89C55 microcontroller and visual basic program to build data logger which provides multiple accesses to a protected area that can be an office, home, bank or whatever needed. The data logger was added to the system to make records of users who accessed the system at any time. Bluetooth-enabled mobile phones design is also proposed providing wireless and automatic unlockin

    Real-time application surveillance security system based on LabVIEW

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    Nowadays surveillance security system is very important for companies and factories. No facility can operate without a surveillance security system. Remote real-time surveillance systems are built in a network which improves the power of application. The main purpose of this paper is to know the exact location and type of problem that may occur in the facility by monitoring the system using computers. This system can be relayed on to do the suitable reaction automatically when the facility is in real danger, and as an advanced option the supervisor can monitor and connect to the system at any time or place using the internet. This system consists of hardware and software tools, and the main tools are PIC (16F877), LabVIEW, Parallel Port and different type of sensors. In this paper, we developed a Real-time Online Inspection System to control VI remotely using LabVIE

    Implementation of Fully Automated Electricity for large Building Using SCADA Tool like LabVIEW

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    This paper deals with the development and implementation of a framework of SCADA using LabVIEW based Data Acquisition and Management. A SCADA system is described in terms of architecture, process interfaces, functionality, and application development facilities. The system is low on system requirements and easy to implement. This paper describes configuration of Remote Terminal Units to access and transmit real time data over the Intranet, logging all the data in a historian for future references at a centralized location, keeping the human operator updated via Human Machine Interface, and providing measures for any emergency and enabling control via SMS giving true remote control capabilities. In addition, the project can automatically run the suitable generator from his reading of the foundation power; in short it’s the best solution of the foundation electricity problem

    A modified internal model control for unstable–time delayed system

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    A new approach of control design of internal model controller is proposed in this paper. The proposed design method focuses on modifying the old general structure of IMC and develops a new model structure while saving the same general concept of using the invertible version of the system in the controller design. The new approach combines the IMC structure and the traditional structure of a control problem and this demonstrates an excellent performance and behavior against different disturbance inputs and model uncertainty presented in model parameter mismatch. Beside that a smith predictor is added to promote the design to compensate the delayed time systems. Also a proposed stabilizer has mentioned to deal with unstable systems

    FPGA fuzzy controller design for magnetic ball levitation

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    this paper presents a fuzzy controller design for nonlinear system using FPGA. A magnetic levitation system is considered as a case study and the fuzzy controller is designed to keep a magnetic object suspended in the air counteracting the weight of the object. Fuzzy controller will be implemented using FPGA chip. The design will use a high-level programming language HDL for implementing the fuzzy logic controller using the Xfuzzy tools to implement the fuzzy logic controller into HDL code. This paper, advocates a novel approach to implement the fuzzy logic controller for magnetic ball levitation system by using FPGA

    Hybrid Takagi‐Sugeno Fuzzy FED PID Control of Nonlinear Systems

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    The new method of proportional‐integral‐derivative (PID) controller is proposed in this paper for a hybrid fuzzy PID controller for nonlinear system. The important feature of the proposed approach is that it combines the fuzzy gain scheduling method and a fuzzy fed PID controller to solve the nonlinear control problem. The resultant fuzzy rule base of the proposed controller contains one part. This single part of the rules uses the Takagi–Sugeno method for solving the nonlinear problem. The simulation results of a nonlinear system show that the performance of a fed PID Hybrid Takagi‐Sugeno fuzzy controller is better than that of the conventional fuzzy PID controller or Hybrid Mamdani fuzzy FED PID controller

    Design of Optimized Fuzzy logic Controller for Magnetic Levitation Using Genetic Algorithms

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    This paper presents an optimum approach for designing of fuzzy controller for nonlinear system using Genetic Algorithms (GA). In this paper, a magnetic levitation system is considered as a case study and the controller is designed to keep a magnetic object suspended in the air counteracting the weight of the object. Genetic Algorithm (GA) is used in this paper as optimization method that optimizes the membership, output gain and inputs gains of the fuzzy controllers. The proposed algorithms are implemented using Matlab and Simulin

    Two axes sun tracker using fuzzy controller via PIC16F877A

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    This paper presents sun tracking generating power system designed and implemented in real time. A tracking mechanism composed of photovoltaic module, stepper motor, sensors, input/output interface and expert FLC implemented on PIC, that to track the sun and keep the solar cells always face the sun in most of the day time. The proposed sun tracking controller is tested using Matlab/Simulink program, the results show that the controller have a good respons

    Fuzzy Controller Design Using FPGA for Sun and Maximum Power Point Tracking in Solar Array System

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    In this paper, Two fuzzy logic controllers are fabricated on modern FPGA card (Spartan-3AN, Xilinx Company, 2009) to increase the energy generation efficiency of solar cells. These controllers are, sun tracking controller and maximum power point tracking controller. Sun tracking generating power system is designed and implemented in real time. A tracking mechanism composed of photovoltaic module, stepper motor, sensors, input/output interface and expert FLC controller implemented on FPGA, that to track the sun and keep the solar cells always face the sun in most of the day time. The proposed sun tracking controller, and maximum power point tracking controller are tested using Matlab/Simulink program, Maximum power point tracking system is designed and implemented in real time. The results show that both controllers have a response better than conventional controller applied on the same system

    Fuzzy Controller for Dual Sensors Cardiac Pacemaker System in Patients with Bradycardias at Rest

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    Cardiovascular disease is defined as a heart rate that is less than 60 bpm. Implantable cardiac devices such as pacemakers are widely used nowadays. In this paper, design and implementation of the heart model can be controlled to be the heart of a patient suffering from a decrease in heart rate (Bradycardia). A system is designed to sense and calculate the heart rate per minute and it is considered as an input to the controller. The design and implementation of Mamdani fuzzy controller to generate electric pulses that mimic the natural pacing system of the heart maintains an adequate heart rate by delivering controlled, rhythmic electrical stimuli to the chambers of the patient heart. The proposed controller is tested by using Matlab/Simulink program
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