1,394 research outputs found

    A Low Bit Rate Audio Coder based on Segmental Sinusoidal Model

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    Audio signal information with high quality would help the television audience to increase the perception of the information displayed. Transmission channel capacity will become limited, while the need of channel communication is increased. The research aim is coding the audio signal on the low bit rate for saving the channel communication usage for digital television broadcasting. The research will be done is develop an audio signal coder on the low bit rate with the suitable decoder. The proposed audio signal coder consists of signal existention detector, period width detector, average amplitude counter, separation of the vibrating and the nonvibrating signal, determination of the period signal and parameters coding. One period signal is coded using sinusoidal model. The decoder consists of the parameters detector, signal synthesizer, and the periodic signal generator. The research results contribution for digital broadcasting is the method developing for decreasing the audio signal rate. So that the communication channel usage can be saved

    A CONTACTLESS POWER STATION FOR CELLULAR BATTERY CHARGER

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    A Contactless Power Station (CLPS) is a new breakthrough to transmit power without wires in electronic devices such as cellular phones. Power transfer capability of a CPLS system can be increased if the system is designed to operate under resonance condition. The power transfer is then controlled by controlling the inverter frequency. In order to ensure that the power transfer is maximum, a maximum power point tracker is employed to control the CLPS. Several simulated and experimental results are included

    Development Of Planning Support System For Urban Rehabilitation And Reconstruction In Case Sidoarjo Mud Flow Post Disaster

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    Sidoarjo mud disaster impact that has lasted more than 3 years are very influential on other aspects of life in Porong and surrounding areas. The need for information systems that can inform the public about the catastrophic conditions is absolutely necessary. In previous research has established a disaster management information system that is treated with the approach to Geographic Information Systems (GIS) consisting of the phases of mitigation, evacuation and warning his own. Mitigation system that was built covering the field of catastrophe risk modeling using network analysis, mapping mudguard embankment area, information about alternative routes and other public facilities information. Evacuation system provides information on areas that can be used as an evacuation site if a disaster occurs, such as health centers and referral hospitals and information about the stages of evacuation if the disaster occurs. Early warning system that allows agencies related to the Sidoarjo Mud Mitigation Agency (BPLS) provide information directly via WEB and SMS that can be accessed by the public via the WEB and SMS. Mitigation system that was built covering the field of catastrophe risk modeling using network analysis, mapping mudguard embankment area, information about alternative routes and other public facilities information. Evacuation system provides information on areas that can be used as an evacuation site if a disaster occurs, such as health centers and referral hospitals and information about the stages of evacuation if the disaster occurs. Early warning system that allows agencies related to the Sidoarjo Mud Mitigation Agency (BPLS) provide information directly via WEB and SMS that can be accessed by the public via the WEB and SMS. Mitigation system that was built covering the field of catastrophe risk modeling using network analysis, mapping mudguard embankment area, information about alternative routes and other public facilities information. Evacuation system provides information on areas that can be used as an evacuation site if a disaster occurs, such as health centers and referral hospitals and information about the stages of evacuation if the disaster occurs. Early warning system that allows agencies related to the Sidoarjo Mud Mitigation Agency (BPLS) provide information directly via WEB and SMS that can be accessed by the public via the WEB and SMS. The next stage is the stage of recovery. To that end, the research platform designed with integrated GIS Decision Systems (DSS) for regional development planning. Platform that includes a planned relocation of the transportation system and the relocation industry. Relocation of industrial zones by the method of analytical hierarchy process to produce recommendations relocate industrial park. Modeling facility relocation alternative transport route network transformation results

    OCP Based Online Multisensor Data Fusion for Autonomous Ground Vehicle

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    In this paper, online multisensor data fusion algorithm using CORBA event channel is proposed, in order to deal with simplifying problem in sensor registration and fusion for vehicle’s state estimation. The networked based navigation concept for Autonomous Ground Vehicle (AGV) using several sensors is presented. A simulation of various application scenarios are considered by choosing several parameters of UKF, i.e. weighting constant for sigma points and square root matrix. Normalized mean-square error (MSE) of Monte Carlo simulations are computed and reported in the simulation results. Furthermore, the middleware infrastructure based on Open Control Platform (OCP) to support the interconnection between the whole filter structures also reported

    Advancement of Monitoring Scheme in FTTH-PON Using Access Control System (ACS)

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    This paper proposes a new developed system named Access Control System (ACS) which is designed to enhance the monitoring, scalability and survivability of Passive Optical Network (PON) toward the implementation of full & Complete edition of Fiber-to-the Network (FTTH) network. The system automatically identifies faults and controls each optical fiber line to provide the restoration against failure in the drop region of PON downwardly from optical line terminal at the central office to the optical network unit of the subscriber. ACS manages the Optical Time Domain Reflectometer (OTDR) troubleshooting wavelength to enable the status of each line which can be displayed onto one single screen in the central office. Our proposed mechanism in this paper is the first reported thus far. Keywords: ACS, monitoring, path routing, experimental, FTTH-PO

    Visual Perception for a Partner Robot Based on Computational Intelligent

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    We propose computational intelligence for partner robot perception in which the robot requires the capability of visual perception to interact with human beings. Basically, robots should conduct moving object extraction, clustering, and classification for visual perception used in interactions with human beings. We propose total human visual tracking by long-term memory, k-means, self-organizing map, and a fuzzy controller is used for movement output. Experimental results show that the partner robot can conduct the human visual tracking

    Robot Cartesian 3 Sumbu (X,Y,Z) Untuk Aplikasi Pengambilan dan Penempatan Benda Kerja

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    Labiartorium Otomasi Program Studi Teknik Elektronika Politeknik Manufaktur Negeri Bangka Belitung (Polman Babel), sejak didirikannya telah difasilitasi dengan sebuah robot cartesian merk Festo, Namun, robot ini hanya memiliki 2 sumbu (X,Y) dan tidak dapat beroperasi lagi dikarenakan kedua sensor jarak sumbu X,Y dan kontrol PLC yang digunakannya mengalami kerusakan. Untuk itu, perlu dilakukan tindakan perbaikan terhadap robot. Perbaikan robot dimaksudkan untuk mengoperasikan kembali robot cartesian tersebut sebagai bahan ajar praktikum. Agar pemanfaatannya dapat lebih maksimal untuk para mahasiswa, pada robot yang diperbaiki dilakukan modifikasi dengan tujuan agar robot dapat berkgerak secara 3 sumbu(X,Y,Z) untuk melakukan aplikasi pengambilan dan penempatan benda kerja. Adapaun peralatan yang dibutuhkan untuk modifikasi tersebut antara lain menggunakan sebuah double acting cylinder sebagai sumbu z, dengan vacuum gripper pada ujungnya untuk mencekam benda kerja, 2 buah reed switches sebagai sensor sumbu z, 3 buah sensor benda kerja, yaitu sensor optik, sensor kapasitif, dan sensor induktif, untuk proses pemilihan benda kerja agar dapar ditempatkan sesuai stasiunnya masing-masing. Untuk konrtol PLC diganti dengan IC Mikrokontroler ATMega 16L, menggunakan bahasa pemrograman CodeVisionAVR. Begitu juga sensor jarak sumbu X, Y diganti dengan sensor sumbu yang baru. Sebagai hasil pengujian dengan metode On-Off yang dilakukan, didapat bahwa robot dapat melakukan fungsi aplikasi pengambilan dan penempatan benda sesuai stasiunnya masing-masing dengan baik walaupun untuk posisi koordinat yang dicapai masih terdapat error dengan kisaran +1-+3(mm) untuk sumbu X dan +3 - +5 (mm) untuk sumbu

    Decoder of the 48 kbps Audio Coder based on Segmental Sinusoidal Model

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    The recent technology of the television is implementation the digital system over transmitter, transmission channel and receiver. Therefore, television system in Indonesia is dominated by analog system, that less flexible for system development and communication on digital communication system. So that, it need actions to develop the digital broadcasting system to replace the analog broadcasting system. Audio signal information with high quality would help the television audience to increase the perception of the information displayed. Transmission channel capacity will become limited, while the need of channel communication is increased. The limited channel capacity endorse to save all aspect on the telecommunication system. There are some research on audio signal coding to obtain the lower bit rate for transmission channel usage saving. The audio signal is processed, so that the redundant component can be decreased, then we obtain the simple size of information that reliable to be transmitted. The research aim is coding the audio signal on the low bit rate for saving the channel communication usage for digital television broadcasting. The research will be done is develop an audio signal coder on the low bit rate with the suitable decoder. The decoder consists of the parameters detector, signal synthesizer, and the periodic signal generator. The encoder and the decoder development is implemented using C++ software. The hardware for the simulation process consists of microphone, digital signal processor and the personal computer equiped with sound card for audio signal acquisition

    SOLUSI BISNIS BERBASIS AJAX : STUDI KASUS SISTEM POS (POINT OF SALE)

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    Retailers find themselves up against fierce competition. They must fight for every sale, and work hard to build customer loyalty and protect already slim margins. Today, an increasing number of smaller retailers understand the urgent need to catch up to larger players to remain competitive. They also recognize the important role that IT investments play in organizations� strategic decision-making and operational efficiency in all areas of the business, including point of sale, supply chain management, and inventory. The savvy retailer knows that POS (Point Of Sale) data and functionality has quickly become critical to business rather than a mere convenience. In recent time Ajax based applications have become very popular. Ajax is a new model for web applications to provide more responsive and faster user interfaces resembling more closely to dekstop applications. Typical usage areas are user input validation without page submission, integrating small elements from several servers on a single page, and simulating push-services. Especially the latter are promising for enhancing web applications and for realizing them directly in browsers without plug-ins or additional software. Many frameworks and libraries (open source or comercial) are available which support Ajax development. In this final project, we will integrate some open-source Ajax framework to build low-cost, interactive and integrate POS (Point Of Sale) systems which is accessible to a wide retailer through the Internet. This is we call as iPOS. We hope it�s will become a solution for retailers to run their business more efective and effisien

    Decision Boundaries and Classification Performance Of SVM And KNN Classifiers For 2-Dimensional Dataset

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    Support Vector Machines (SVM) and K-Nearest Neighborhood (k-NN) are two most popular classifiers in machine learning. In this paper, we intend to study the generalization performance of the two classifiers by visualizing the decision boundary of each classifier when subjected to a two-dimensional (2-D) dataset. Four different sets of database comprising of 2-D datasets namely the eigenpostures of human (EPHuman), the breast cancer (BCancer), the Swiss roll (SRoll) and Twinpeaks (Tpeaks) were used in this study. Results obtained confirmed SVM classifier superb generalization performance since it contributed the lower classification error rate when compared to the k-NN classifier during the training for binary classification of all 2-D datasets. This is evident and can be clearly visualized through the plots depicting the decision boundaries of the binary classification task
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