• Title/Summary/Keyword: auto-communication

Search Result 385, Processing Time 0.025 seconds

The Communication Method at the Auto-Startup System using TCP/IP and VXI and Expert System(G2)

  • Kim, Jung-Soo;Joon Lyon
    • Transactions on Control, Automation and Systems Engineering
    • /
    • v.1 no.2
    • /
    • pp.141-146
    • /
    • 1999
  • This paper describes the communication method of an auto-startup system. The Auto-Startup system is designed to operate a nuclear power plant automatically during the startup operation . In general , the operations during startup in existing plant have only been manually controlled by the operator. The manual operation caused to the operator mistake. The Auto-Startup system consists of the Distributed Control System(DCS) and G2 (Expert System). Also, Functional Test Facility(FTF) provides the plant's real-data for an Auto-Startup system. So, it is necessary to develop the communication method between these systems. We developed two methods ; one is a network and the other is a hardwire line. To communicate between these systems (DCS-G2 and DCS-FTF) , we developed the communication program. In case of DCS-FTF, we used the TCP/IP and VXI. BUt, in case of DCS-G2 , we , what it called , developed the bridge program using the GSI(G2 Standard Interface). We test to check the function of the important parameter, in time, for analysis of the developed communication method. The results are a good performance when we check the communication time of important parameter. We conclude that Auto-startup system could save heat-up time about at least 5 hours and reduced the change of the reactor operation and trip.

  • PDF

Classification of HTTP Automated Software Communication Behavior Using a NoSQL Database

  • Tran, Manh Cong;Nakamura, Yasuhiro
    • IEIE Transactions on Smart Processing and Computing
    • /
    • v.5 no.2
    • /
    • pp.94-99
    • /
    • 2016
  • Application layer attacks have for years posed an ever-serious threat to network security, since they always come after a technically legitimate connection has been established. In recent years, cyber criminals have turned to fully exploiting the web as a medium of communication to launch a variety of forbidden or illicit activities by spreading malicious automated software (auto-ware) such as adware, spyware, or bots. When this malicious auto-ware infects a network, it will act like a robot, mimic normal behavior of web access, and bypass the network firewall or intrusion detection system. Besides that, in a private and large network, with huge Hypertext Transfer Protocol (HTTP) traffic generated each day, communication behavior identification and classification of auto-ware is a challenge. In this paper, based on a previous study, analysis of auto-ware communication behavior, and with the addition of new features, a method for classification of HTTP auto-ware communication is proposed. For that, a Not Only Structured Query Language (NoSQL) database is applied to handle large volumes of unstructured HTTP requests captured every day. The method is tested with real HTTP traffic data collected through a proxy server of a private network, providing good results in the classification and detection of suspicious auto-ware web access.

Side Information Extrapolation Using Motion-aligned Auto Regressive Model for Compressed Sensing based Wyner-Ziv Codec

  • Li, Ran;Gan, Zongliang;Cui, Ziguan;Wu, Minghu;Zhu, Xiuchang
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.7 no.2
    • /
    • pp.366-385
    • /
    • 2013
  • In this paper, we propose a compressed sensing (CS) based Wyner-Ziv (WZ) codec using motion-aligned auto regressive model (MAAR) based side information (SI) extrapolation to improve the compression performance of low-delay distributed video coding (DVC). In the CS based WZ codec, the WZ frame is divided into small blocks and CS measurements of each block are acquired at the encoder, and a specific CS reconstruction algorithm is proposed to correct errors in the SI using CS measurements at the decoder. In order to generate high quality SI, a MAAR model is introduced to improve the inaccurate motion field in auto regressive (AR) model, and the Tikhonov regularization on MAAR coefficients and overlapped block based interpolation are performed to reduce block effects and errors from over-fitting. Simulation experiments show that our proposed CS based WZ codec associated with MAAR based SI generation achieves better results compared to other SI extrapolation methods.

Cost-effective Exchange Auto Back Monitoring in Mobile Communication System (교환기 장애 긴급 복구를 위한 중계선 절체 솔루션)

  • An, Jang-Hoon;Yoon, Dae-Hee;Kwon, June-Hyuk
    • 한국정보통신설비학회:학술대회논문집
    • /
    • 2008.08a
    • /
    • pp.242-245
    • /
    • 2008
  • Exchange System for mobile communication operator is very important for providing continuous services to customers. However traditional solution is too expensive for choosing in the real environment. In this paper, we suggest cost-effective auto backup monitoring solution, which is robust for system failure. And this suggested solution will also can be adopted to the $4^{th}$ generation of IP core network.

  • PDF

Analysis of Hybrid ARQ System Using Cross Layer (Cross Layer를 이용한 Hybrid ARQ System 분석)

  • Park, Tae-Doo;Kim, Min-Hyuk;Kim, Chul-Seong;Jung, Ji-Won
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
    • /
    • v.21 no.11
    • /
    • pp.1229-1234
    • /
    • 2010
  • High quality and high speed multimedia services will be required in the next generation mobile communications. To satisfy these services, powerful error correction techniques are used. ARQ(Auto Repeat Request) techniques, aspects of the throughput, and FEC(Forward Error Correct) techniques have disadvantages in terms of reliability. H-ARQ(Hybrid Auto Repeat Request) systems have been studied extensively as a solution of these disadvantages. In this paper introduce double layer coding and H-ARQ type, proposed H-ARQ system using double layer coding methods. Simulate BER performance and throughput. And we suggest that according to channel condition suitable H-ARQ type.

Design of Hybrid V2X Communication Module for Electromagnetic Confirmity Evaluation (전자파 적합성 평가를 위한 하이브리드 V2X 통신모듈 설계)

  • Seungkyu Choi;Juwon Lee;Kyuhyeon Kim
    • Journal of Auto-vehicle Safety Association
    • /
    • v.15 no.4
    • /
    • pp.65-70
    • /
    • 2023
  • In the paper, we propose a design method and process of a hybrid V2X communication module that combines WAVE communication, LTE-V2X communication, and legacy LTE communication in evaluating vehicle V2X electromagnetic compatibility. C-ITS is suitable for safety service applications due to its low latency, and legacy LTE is suitable for applications such as traffic information and infotainment due to its high latency and high capacity. In order to evaluate the V2X communication system, the evaluation equipment must have communication performance of the same level or higher. The main design contents presented in this paper will be applied to the implementation of a hybrid V2X communication module for electromagnetic compatibility evaluation.

Auto Sushi Conveyer-Belt Payment System Using UHF RFID Dishes (UHF RFID 접시를 사용한 자동회전초밥 자동결제시스템)

  • Nam, Seahyeon;Yim, Yongho;Jung, Haeyong;Seok, Juwan;Chung, You Chung
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.39C no.12
    • /
    • pp.1225-1229
    • /
    • 2014
  • This paper introduces a development of the auto sushi conveyer-belt payment system using UHF RFID dishes. In a sushi bar, instead of counting the number of the finished sushi dishes, sushi dishes with the UHF RFID have been used in the auto payment system to have accuracy and convenience. To recognize each dish, the UHF RFID tag has been designed, and auto-payment system has been developed. The UHF RFID tag under the dish has been recognized by an RFID reader, and the auto RFID payment system shows the total price of the finished dishes based on the color and number of dishes automatically. The performance of the developed UHF RFID tag and auto RFID payment system have been measured and verified.

A Cognitive Automation Based Mobility Robotic Process Automation System (인지 자동화 기반 모빌리티 로보틱스 프로세스 자동화 시스템)

  • Hong, Phil-Doo
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.23 no.8
    • /
    • pp.930-935
    • /
    • 2019
  • Our proposed system, MobiAutoBot, is a conceptual model of robotics process automation software at a cognitive automation level that can support mobile devices. MobiAutoBot consists of two parts: MobiAutoBot controller and MobiAutoBot runner. The MobiAutoBot controller directs, monitors, and interacts the Job on the mobile device, and the MobiAutoBot runner installed on the mobile device performs the commanded operation. If we provide automation for mobile devices to small businesses through our proposed MobiAutoBot, we can build low-cost robotic process automation functions that can be linked to existing information systems with mobile devices such as simple smartphones, even without an expensive information-based infrastructure. Our proposal is expected to serve as an opportunity to spread automation of robotics processes even to small and medium-sized companies and individual users who are difficult to equip with all information system infrastructure.

The Study of Auto Recogniton System by Using Zigbee (Zigbee를 이용한 자동 인식 시스템에 관한 연구)

  • Baek, Dong-Won;Yoon, Seon-Tae;Park, Seung-Yub;Ko, Bong-Jin
    • Journal of Advanced Navigation Technology
    • /
    • v.13 no.3
    • /
    • pp.393-398
    • /
    • 2009
  • In this paper, we study the design and implementation of an auto recognition system by using wireless sensor node. RFID system has a limited communication range and communication network is damaged, it is impossible to communicate. Therefore, easy installation and low cost wireless system are required in an area where the installation of communication between RFID system and monitoring system is difficult, or a portable RFID system is installed. The auto recognition system in this study is implemented by the combination of 13.56MHz RFID system using MLX12115 RFID chip of Melexis company and wireless sensor node system using CC2420 Zigbee chip of Chipcon company. As a result, we develop an auto recognition system which makes it possible to get tag's information wirelessly. Also, it has a simple circuit structure and is small in size.

  • PDF

The Damage Classification by Periodicity Detection of Ultrasonic Wave Signal to Occur at the Tire (타이어에서 발생하는 초음파 신호의 주기성 검출에 의한 손상 분별)

  • Oh, Young-Dal;Kang, Dae-Soo
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.10 no.6
    • /
    • pp.107-111
    • /
    • 2010
  • The damage of tire by damage material classification method is researched as used ultrasonic wave signal to occur at a tire during vehicle driving. Auto-correlation function after having passed through an envelope detecting preprocess is used for detecting periodicity because of occurring periodic ultrasonic waves signal with tire revolution. One revolution cycle time of a damaged tire and period that calculated auto-correlation function appeared equally in experiment. The result that can classification whether or not there was a tire damage is established.