• Title/Summary/Keyword: Processing Module

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Implementation and performance evaluation of the communications module of TNAS in the advanced CPS (대용량 통신처리시스템의 전화망 정합 장치의 통신 모듈 구현 및 성능 분석)

  • 김건석;조평동
    • Journal of the Korean Institute of Telematics and Electronics S
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    • v.34S no.7
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    • pp.9-18
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    • 1997
  • In this paper, we implemented the communication module in the Telephone Network Access Subsystem(TNAS) of the Advanced Communications Processing System(ACPS). We defined some kinds of communication tasks and related resources like several queues which are executed in real-time operating system, and implemented the procedures for processing the user information. Through traffic modeling and simulation, the performance of the Service Processing board Assembly(SPA) is evaluated in the aspets of system utilization and buffer size. The ACPS should accommodate various public networks such as public switch telephone network, packet switchen data network, frame realy netork, and ATM network. The communications module proposed in this paper could be used inthe interface beween the SPA and the High Speed Network Adaptor of other network interface subsystems.

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PUM: Processing Unit Module Design of Intrusion Detector for Large Scale Network (대규모 네트워크를 위한 침입 탐지결정모듈 설계)

  • 최인수;차홍준
    • Journal of the Korea Society of Computer and Information
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    • v.7 no.2
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    • pp.53-58
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    • 2002
  • the popularity of uses for internet has been needed to information security. thereforce, intrusion, information leakage and modification, change or intentional efflux to computer system aspects of information security have been resulted in requirement of intrusion detection from outer at user authentication. this problem Presents design of PUM(Processing Unit Module) which analyze both the host log generated by sever host systems that various case for intellectualized intrusion method and network_packet on networks in large scale network.

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Implementation of Measuring Modules & Data Processing Unit for Unmanned Remote Supervisory System (무인 원격감시 시스템용 계측 모듈 및 데이터 처리장치의 구현)

  • Park, Jung-Hoon;Hong, Sung-Hoon;Seo, Kang-Myun;Kang, Moon-Sung
    • Proceedings of the KIEE Conference
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    • 2001.07d
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    • pp.2209-2211
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    • 2001
  • Unmanned remote supervisory system consists of data processing unit and measuring systems-temperature measuring module, humidity measuring module and human body sensing module. The data processing unit to collect and process informations of each measuring modules has functions of data communication between a mobile cellular-telephone and measuring systems.

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A Study on the RRMC Implementation for the Efficient Resource Management in DBS System (DBS 시스템에서 효율적인 자원 관리를 위한 RRMC 구현에 관한 연구)

  • Shin, Cheon-Sig;Kim, Shin-Hong
    • The Transactions of the Korea Information Processing Society
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    • v.4 no.12
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    • pp.3133-3138
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    • 1997
  • The Digital Broadcasting Satallite System consists of the Transmitter station, the Resource and Subscriber Management System, and the Receiver Test Unit. The RSMS consists or several modules such as Resource Main Module, Resource User Interface Module, Transmitter Station Interface Module, Receiver Test Unit Interface Module, Subscriber sales Outlets Module and Monitor & Control Module. In this paper we suppose the new RRMC Algorithms that is to manage efficiently the Resource and subscriber information in the Direct Broadcasting Satellite system based on client-sever features and demonstrates the implementation method of monitoring and control the system in real time. Also we explain the communication procedure between resource and subscriber managment and other equipment.

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On the Quantitative Metrics of Software Reusability (소프트웨어 재사용가능성의 정략적 측도)

  • Jang, Hwa-Sik;Park, Man-Gon
    • The Transactions of the Korea Information Processing Society
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    • v.2 no.2
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    • pp.176-184
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    • 1995
  • The software reuse is a prospective way to improve software productivity and quality but not applied very well in practice, because there is no quantitative metric for software quality. In this paper we proposed the quantification of the reuse of software that we can measure the possibility of the reuse by applying the reuse assessment metric to the module after the extraction of a module from existing software. For measuring the module that can be reused, we divided the factors of quality by the generality, simplicity, maintainability and modularity, and identified and measured the module by the factors and finally decided the possibility of the software reuse. The advantage of the proposed metric is that we can find the inappropriate reuse of module exactly at the beginning by measuring quantitatively the module to be reused.

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Design and Implementation of a Bluetooth Baseband Module based on IP (IP에 기반한 블루투스 기저대역 모듈의 설계 및 구현)

  • Lim, Ji-Suk;Chun, Ik-Jae;Kim, Bo-Gwan
    • Proceedings of the Korea Information Processing Society Conference
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    • 2002.04b
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    • pp.1285-1288
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    • 2002
  • Bluetooth wireless technology is a publicly available specification proposed for Radio Frequency (RF) communication for short-range and point-to- multipoint voice and data transfer. It operates in the 2.4GHz ISM(Industrial, Scientific and Medical) band and offers the potential for low-cost, broadband wireless access for various mobile and portable devices at range of about 10 meters. In this paper, we describe the structure and the test results of the bluetooth baseband module we have developed. This module was developed based on IP reuse. So Interface of each module such as link controller UART, and audio CODEC is designed based on ARM7 comfortable processor. We also considered various interfaces of related external chips. The fully synthesizable baseband module was fabricated in a $0.25{\mu}m$ CMOS technology occupying $2.79{\times}2.8mm^2$ area including the ARM TDMI processor. And a FPGA implementation of this module is tested for file and bit-stream transfers between PCs.

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Design and Implementation of MongoDB-based Unstructured Log Processing System over Cloud Computing Environment (클라우드 환경에서 MongoDB 기반의 비정형 로그 처리 시스템 설계 및 구현)

  • Kim, Myoungjin;Han, Seungho;Cui, Yun;Lee, Hanku
    • Journal of Internet Computing and Services
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    • v.14 no.6
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    • pp.71-84
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    • 2013
  • Log data, which record the multitude of information created when operating computer systems, are utilized in many processes, from carrying out computer system inspection and process optimization to providing customized user optimization. In this paper, we propose a MongoDB-based unstructured log processing system in a cloud environment for processing the massive amount of log data of banks. Most of the log data generated during banking operations come from handling a client's business. Therefore, in order to gather, store, categorize, and analyze the log data generated while processing the client's business, a separate log data processing system needs to be established. However, the realization of flexible storage expansion functions for processing a massive amount of unstructured log data and executing a considerable number of functions to categorize and analyze the stored unstructured log data is difficult in existing computer environments. Thus, in this study, we use cloud computing technology to realize a cloud-based log data processing system for processing unstructured log data that are difficult to process using the existing computing infrastructure's analysis tools and management system. The proposed system uses the IaaS (Infrastructure as a Service) cloud environment to provide a flexible expansion of computing resources and includes the ability to flexibly expand resources such as storage space and memory under conditions such as extended storage or rapid increase in log data. Moreover, to overcome the processing limits of the existing analysis tool when a real-time analysis of the aggregated unstructured log data is required, the proposed system includes a Hadoop-based analysis module for quick and reliable parallel-distributed processing of the massive amount of log data. Furthermore, because the HDFS (Hadoop Distributed File System) stores data by generating copies of the block units of the aggregated log data, the proposed system offers automatic restore functions for the system to continually operate after it recovers from a malfunction. Finally, by establishing a distributed database using the NoSQL-based Mongo DB, the proposed system provides methods of effectively processing unstructured log data. Relational databases such as the MySQL databases have complex schemas that are inappropriate for processing unstructured log data. Further, strict schemas like those of relational databases cannot expand nodes in the case wherein the stored data are distributed to various nodes when the amount of data rapidly increases. NoSQL does not provide the complex computations that relational databases may provide but can easily expand the database through node dispersion when the amount of data increases rapidly; it is a non-relational database with an appropriate structure for processing unstructured data. The data models of the NoSQL are usually classified as Key-Value, column-oriented, and document-oriented types. Of these, the representative document-oriented data model, MongoDB, which has a free schema structure, is used in the proposed system. MongoDB is introduced to the proposed system because it makes it easy to process unstructured log data through a flexible schema structure, facilitates flexible node expansion when the amount of data is rapidly increasing, and provides an Auto-Sharding function that automatically expands storage. The proposed system is composed of a log collector module, a log graph generator module, a MongoDB module, a Hadoop-based analysis module, and a MySQL module. When the log data generated over the entire client business process of each bank are sent to the cloud server, the log collector module collects and classifies data according to the type of log data and distributes it to the MongoDB module and the MySQL module. The log graph generator module generates the results of the log analysis of the MongoDB module, Hadoop-based analysis module, and the MySQL module per analysis time and type of the aggregated log data, and provides them to the user through a web interface. Log data that require a real-time log data analysis are stored in the MySQL module and provided real-time by the log graph generator module. The aggregated log data per unit time are stored in the MongoDB module and plotted in a graph according to the user's various analysis conditions. The aggregated log data in the MongoDB module are parallel-distributed and processed by the Hadoop-based analysis module. A comparative evaluation is carried out against a log data processing system that uses only MySQL for inserting log data and estimating query performance; this evaluation proves the proposed system's superiority. Moreover, an optimal chunk size is confirmed through the log data insert performance evaluation of MongoDB for various chunk sizes.

A Study on Digital Fault Locator for Transmission Line (송전선로용 디지털 고장점 표정장치에 관한 연구)

  • Lee, Kyung-Min;Park, Chul-Won
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.64 no.4
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    • pp.291-296
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    • 2015
  • Transmission line is exposed to a large area, and then faults are likely to occur than the other component of power system. When a fault occurs on a transmission line, fault locator helps fast recovery of power supply on power system. This paper deals with the design of a digital fault locator for improvement accuracy of the fault distance estimation and a fault occurrence position for transmission line. The algorithm of a fault locator uses a DC offset removal filter and DFT filter. The algorithm utilizes a fault data of GPS time synchronized. The computed fault information is transmitted to the other side substation through communication. The digital fault locator includes MPU module, ADPU module, SIU module, and a power module. The MMI firmware and software of the fault locator was implemented.

A Scheduling Support System for Non-identical Parallel Machine Lines (이종병렬기계생산의 일정계획지원 시스템)

  • 정남기;정민영
    • Korean Management Science Review
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    • v.17 no.2
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    • pp.67-73
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    • 2000
  • This paper describes a scheduling support system for a plant where the machine environment may be modeled as non-identical parallel machine lines (NPML). That is, there are a number of stages in series with various different-capability-machines at each stage. Arriving continuously are jobs with their specific due dates, processing times and candidate processing machines. We’ve developed a real-time scheduling module in conjunction with a supporting production information system which supplies necessary data to the module. This scheduling module is one of the 9 modules in this system, and is composed of both a scheduling interface and a production monitoring interface. This module allows users to generate many candidate schedules by selecting their business policies. The selective arguments which are available consist of allocation costs, batch sizes and machine selection intervals. They are now being implemented at a powder metallurgy plant.

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Wearable Computing System for the bland persons (시각 장애우를 위한 Wearable Computing System)

  • Kim, Hyung-Ho;Choi, Sun-Hee;Jo, Tea-Jong;Kim, Soon-Ju;Jang, Jea-In
    • Proceedings of the KIEE Conference
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    • 2006.04a
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    • pp.261-263
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    • 2006
  • Nowadays, technologies such as RFID, sensor network makes our life comfortable more and more. In this paper we propose a wearable computing system for blind and deaf person who can be easily out of sight from our technology. We are making a wearable computing system that is consisted of embedded board to processing data, ultrasonic sensors to get distance data and motors that make vibration as a signal to see the screen for a deaf person. This system offers environmental informations by text and voice. For example, distance data from a obstacle to a person are calculated by data compounding module using sensed ultrasonic reflection time. This data is converted to text or voice by main processing module, and are serviced to a handicapped person. Furthermore we will extend this system using a voice recognition module and text to voice convertor module to help communication among the blind and deaf persons.

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