• Title/Summary/Keyword: 엔진베드

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Architecture and Path-Finding Behavior of An Intelligent Agent Deploying within 3D Virtual Environment (3차원 가상환경에서 동작하는 지능형 에이전트의 구조와 경로 찾기 행위)

  • Kim, In-Cheol;Lee, Jae-Ho
    • The KIPS Transactions:PartB
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    • v.10B no.1
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    • pp.1-12
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    • 2003
  • In this paper, we Introduce the Unreal Tournament (UT) game and the Gamebots system. The former it a well-known 3D first-person action game and the latter is an intelligent agent research testbed based on UT And then we explain the design and implementation of KGBot, which is an intelligent non-player character deploying effectively within the 3D virtual environment provided by UT and the Gamebots system. KGBot is a bot client within the Gamebots System. KGBot accomplishes its own task to find out and dominate several domination points pro-located on the complex surface map of 3D virtual environment KGBot adopts UM-PRS as its control engine, which is a general BDI agent architecture. KGBot contains a hierarchical knowledge base representing its complex behaviors in multiple layers. In this paper, we explain details of KGBot's Intelligent behaviors, tuck af locating the hidden domination points by exploring the unknown world effectively. constructing a path map by collecting the waypoints and paths distributed over the world, and finding an optimal path to certain destination based on this path graph. Finally we analyze the performance of KGBot exploring strategy and control engine through some experiments on different 3D maps.

A Development of Integrated Control System for Platform Equipments of Unmanned Surface Vehicle (USV) (무인수상정 플랫폼 장비의 통합 제어 시스템 개발)

  • Hwang, Hun-Gyu;Kim, Hyun-Woo;Kim, Bae-Sung;Woo, Yun-Tae;Shin, Il-Sik;Shin, Ji-Hwan;Lee, Young-Jin;Choi, Byung-Woong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.8
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    • pp.1611-1618
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    • 2017
  • Recently, the development for USV-related technologies are actively growing up in military domain. The USV (unmanned surface vehicle) conducts various missions for national defense at maritime environment. For succeed the missions, the USV essentially needs an automatic and remote control platform which includes propulsion system, steering system, control system, power system and so on. In this paper, we developed an integrated control system for the platform equipments and verified effectiveness of the developed system. To do this, we designed a system architecture and implemented a main control system that processes and controls platform equipments by received command. Also we developed components of designed architecture such as engine control device, water-jet control device and power control device. For test and verify the developed system, we designed and made a test-bed of engine and water-jet with related parts, and proceeded a basin test for verifying the developed system based on the test-bed.

Novel Ramjet Propulsion System with H2O2-Kerosene Rocket as an Initial Accelerator (H2O2-케로신 로켓을 초기 가속장치로 갖는 새로운 램젯 추진기관)

  • Park, Geun-Hong;Lim, Ha-Young;Kwon, Se-Jin
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.36 no.5
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    • pp.491-496
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    • 2008
  • New concept ramjet propulsion system with liquid bipropellant rocket using "Green Propellant" hydrogen peroxide for launch stage is proposed. In this novel concept, hydrogen peroxide gas generator produces hot oxygen at launch stage and kerosene injects to this jet in combustor. For basic study of this new concept ramjet system, investigation of auto-ignition characteristics and combustion of decomposed hydrogen peroxide and kerosene was conducted. In various test cases, auto-ignition and stable combustion was verified. The combustion temperature of 400°C and Fuel/Oxidizer mixture ratio of 0.6 were the limit of auto ignition. Through the experiment results, the possibility of novel concept combined propulsion system using hydrogen peroxide gas generator is ascertained.

A Design of Context Prediction Structure using Homogeneous Feature Extraction (동질적 특징추출을 이용한 상황예측 구조의 설계)

  • Kim, Hyung-Sun;Im, Kyoung-Mi;Lim, Jae-Hyun
    • Journal of Internet Computing and Services
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    • v.11 no.4
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    • pp.85-94
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    • 2010
  • In this paper, we propose a location-prediction structure that can provide user service in advance. It consists of seven steps and supplies intelligent services which can forecast user's location. Context information collected from physical sensors and a history database is so difficult that it can't present importance of data and abstraction of data because of heterogeneous data type. Hence, we offer the location-prediction that change data type from heterogeneous data to homogeneous data. Extracted data is clustered by SOFM, then it gets user's location information by ARIMA and realizes the services by a reasoning engine. In order to validate the proposed location-prediction, we built a test-bed and test it by the scenario.

An Implementation and Performance Evaluation of IPsec System engaged IKEv2 Protocol Engine (IPsec System에서 IKEv2 프로토콜 엔진의 구현 및 성능 평가)

  • Kim, Sung-Chan;Chun, Jun-Ho;Jun, Moon-Seog
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.16 no.5
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    • pp.35-46
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    • 2006
  • The current Internet Key Exchange protocol(IKE) which has been used for key exchange of security system was pointed out the faults of scalability, speed, efficiency and stability. In this research, we tried to resolve those faults, and implemented the newly designed IKEv2 protocol in the IPsec test bed system. In the trend of network expansion, the current Internet Key Exchange protocol has a limitation of network scalability, so we implemented the new Internet Key Exchange protocol as a recommendation of RFC proposal, so as to resolve the fault of the key exchange complexity and the speed of authentication process. We improved the key exchange speed as a result of simplification of complex key exchange phase, and increased efficiency with using the preexistence state value in negotiation phase.

Heterogeneous Interface Decision Engine and Architecture for Constructing Low Power Home Networks (저전력의 홈 네트워크 구축을 위한 이기종 인터페이스 결정 엔진 및 아키텍처)

  • Bae, Puleum;Jo, Yeong-Myeong;Moon, Eui-Kyum;Ko, Young-Bae
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.40 no.2
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    • pp.313-324
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    • 2015
  • In this paper, in order to support the construction of a smart home environment of low power consumption, we propose a heterogeneous interface determination engine and architecture. Technology of "smart home" is in the spotlight according to the development of IT technology nowadays. Smart homes are configured with multiple sub-networks, and each sub-network is formed by the smart devices using various communication interfaces. Thus, in the smart home environment, interlocking technology between heterogeneous interfaces is essentially required for supporting communication between different networks. Further, each communication interface is a difference in power consumption, and home smart devices are often operated in 24 hours, especially smart phones and other wireless devices are sensitive to power consumption. Therefore, in order to build a energy efficient home network, It is important to select the appropriate interface to handle traffic depending on the situation. In this paper, we propose "The Heterogeneous Interface Decision Engine and Architecture for constructing of Low Power Home Network," and analyze the performance of the proposed method and verify the validity through experiments on the test bed.

Study on Co-Simulation Method of Dynamics and Guidance Algorithms for Strap-Down Image Tracker Using Unity3D (Unity3D를 이용한 스트랩 다운 영상 추적기의 동역학 및 유도 법칙 알고리즘의 상호-시뮬레이션 방법에 관한 연구)

  • Marin, Mikael;Kim, Taeho;Bang, Hyochoong;Cho, Hanjin;Cho, Youngki;Choi, Yonghoon
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.46 no.11
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    • pp.911-920
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    • 2018
  • In this study, we performed a study to track the angle between the guided weapon and the target by using the strap-down image seeker, and constructed a test bed that can simulate it visually. This paper describes a method to maintain high-performance feature distribution in the implementation of sparse feature tracking algorithm such as Lucas Kanade's optical flow algorithm for target tracking using image information. We have extended the feature tracking problem to the concept of feature management. To realize this, we constructed visual environment using Unity3D engine and developed image processing simulation using OpenCV. For the co-simulation, dynamic system modeling was performed with Matlab Simulink, the visual environment using Unity3D was constructed, and computer vision work using OpenCV was performed.

A Hardwired Location-Aware Engine based on Weighted Maximum Likelihood Estimation for IoT Network (IoT Network에서 위치 인식을 위한 가중치 방식의 최대우도방법을 이용한 하드웨어 위치인식엔진 개발 연구)

  • Kim, Dong-Sun;Park, Hyun-moon;Hwang, Tae-ho;Won, Tae-ho
    • Journal of the Institute of Electronics and Information Engineers
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    • v.53 no.11
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    • pp.32-40
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    • 2016
  • IEEE 802.15.4 is the one of the protocols for radio communication in a personal area network. Because of low cost and low power communication for IoT communication, it requires the highest optimization level in the implementation. Recently, the studies of location aware algorithm based on IEEE802.15.4 standard has been achieved. Location estimation is performed basically in equal consideration of reference node information and blind node information. However, an error is not calculated in this algorithm despite the fact that the coordinates of the estimated location of the blind node include an error. In this paper, we enhanced a conventual maximum likelihood estimation using weighted coefficient and implement the hardwired location aware engine for small code size and low power consumption. On the field test using test-beds, the suggested hardware based location awareness method results better accuracy by 10 percents and reduces both calculation and memory access by 30 percents, which improves the systems power consumption.

A Technology on the Framework Design of Virtual based on the Synthetic Environment Test for Analyzing Effectiveness of the Weapon Systems of Underwater Engagement Model (수중대잠전 교전모델의 무기체계 효과도 분석을 위한 합성환경기반 가상시험 프레임워크 설계 기술)

  • Hong, Jung-Wan;Park, Yong-Min;Park, Sang-C.;Kwon, Yong-Jin(James)
    • Journal of the Korea Society for Simulation
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    • v.19 no.4
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    • pp.291-299
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    • 2010
  • As recent advances in science, technology and performance requirements of the weapons system are getting highly diversified and complex, the performance requirements also get stringent and strict. Moreover, the weapons system should be intimately connected with other systems such as watchdog system, command and control system, C4I system, etc. However, a tremendous amount of time, cost and risk being spent to acquire new weapons system, and not being diminished compared to the rapid pace of its development speed. Defense Modeling and Simulation(M&S) comes into the spotlight as an alternative to overcoming these difficulties as well as constraints. In this paper, we propose the development process of virtual test framework based on the synthetic environment as a tool to analyze the effectiveness of the weapons system of underwater engagement model. To prove the proposed concept, we develop the test-bed of virtual test using Delta3D simulation engine, which is open source S/W. We also design the High Level Architecture and Real-time Infrastructure(HLA/RTI) based Federation for the interoperation with heterogeneous simulators. The significance of the study entails (1)the rapid and easy development of simulation tools that are customized for the Korean Theater of War; (2)the federation of environmental entities and the moving equations of the combat entities to manifest a realistic simulation.