• Title/Summary/Keyword: virtual reality simulator

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PC Based Virtual Reality Ship Handling Simulator (PC 기반 가상현실 선박조종 시뮬레이터)

  • Lee Ku Dong;Yim Jeong Bin;Jung Jung Sik;Park Seong Hyeon;Kim Chang Kyeong;Sim Yeong Ho;Choi Ki Yeong
    • Proceedings of KOSOMES biannual meeting
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    • 2003.11a
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    • pp.53-57
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    • 2003
  • The last goof if the study is to develop a law cost and a readily available Virtual Reality (VR) based Ship Handling Simulator using Personal Computer. This paper mainly describes procedures and methods to control the dynamic motions if the 3D ship object with maneuvering coefficients in a virtual navigation world The creation if virtual navigation world, the mathematical background q a ship control, and the construction of the system are also discussed.

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A Team-based Firefighter Training Simulator for Complex Buildings (대형 복합건물을 대상으로 하는 소방관 팀 훈련용 시뮬레이터 개발)

  • Lee, Jai-Kyung;Cha, Moo-Hyun;Choi, Byung-Il;Kim, Tae-Sung
    • Korean Journal of Computational Design and Engineering
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    • v.16 no.5
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    • pp.370-379
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    • 2011
  • The increasing complexity of complex buildings, such as high-rise buildings and underground subway stations, presents new challenges to firefighters. In a fire in complex buildings, the importance of the collaboration between firefighters is clear. The increased demand on firefighter training for such environment is now evident. Due to cost, time, and safety issues, it is impossible to experience a real fire in such environments for training. In addition, the use of real fire for training does not enable repeatable training and the evaluation of the training is difficult. We developed a team-based firefighter training simulator for complex buildings using the virtual reality technology. It provides the training and evaluation of firefighting and mission-based team training. To model real fire phenomena in virtual space, a numerical analysis method based on fire dynamics is used. To achieve an immersive virtual environment, an augmented reality technique for the compensation of real world image and a haptic technique for heat experience are adopted. The developed training simulator can help the firefighter to respond to large and complex firefighting scenarios, while maintaining the safety of the trainees.

Framework of a Training Simulator for the Accident Response of Large-scale Facilities (대형 기계 설비의 사고 대응을 위한 훈련 시뮬레이터 프레임워크)

  • Cha, Moohyun;Huh, Young-Cheol;Mun, Duhwan
    • Korean Journal of Computational Design and Engineering
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    • v.19 no.4
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    • pp.423-433
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    • 2014
  • For the proper decision making and responsibility enhancement for an unexpected accident in large-scale facilities, it is important to train operators or first responders to minimize potential human errors and consequences resulted from them. Simulation technologies, including human-computer interaction and virtual reality, enables personnel to participate in simulated hazardous situations with a safe, interactive, repetitive way to perform these training activities. For the development of accident response training simulator, it is necessary to define components comprising the simulator and to integrate them for the given training purpose. In this paper, we analyze requirements of the training simulator, derive key components, and design the training simulator. Based on the design, we developed a prototype training simulator and verified the simulator through experiments.

Implementation of Background Scene in the Virtual Reality Ship Simulator (가상현실 선박 시뮬레이터의 배경 구현)

  • 임정빈
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.6 no.1
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    • pp.11-22
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    • 2000
  • The paper describes creation methods of background scenes to implement realistic virtual environments in the VRSS (Virtual Reality Ship Simulator). VRSS is next-generation system constructed with virtual tools in a virtual space. Thus, it could have many benefits compared to conventional ship simulators composed with heavy bridge mock-up system and wide visual presentations. In this work, we developed effective 3D object modeling techniques, and constructed virtual harbor scene by using 3D-Webmaster authoring tool. The virtual harbor was built with object-oriented 3D objects modeled to interact with user's action. With the immersion-type VR system, we created virtual harbor environments in a virtual space, and discussed on the naturalness of the scene with test results of SDMPA (Semantic Differential Method for Psychophysical Assessment) by 10 subjects. As the results of subject assessment, all of the participants could felt natural-like harbor. Therefore, we found that the proposed creation methods and procedures of background scene are enabling to fit to the full mission VRSS construction.

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Design of Next-Generation Ship Simulator System Using Virtual Reality (가상현실을 이용한 차세대 선박 시뮬레이터의 시스템 설계)

  • 임정빈;박계각
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.6 no.1
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    • pp.1-9
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    • 2000
  • The paper describes system design of next-generation Ship Simulator using Virtual Reality (VRSS), well known as human-computer interaction. VRSS system is required to have special condition that comprises multiple user participants such as captain, officer, pilot, and quartermaster. To cope with that condition, core technologies were explored and proposed multi-networking system with broker server. The evaluation of the proposed system was done with PC-based immersion-type VR device, constituted with HMD (Head Mounted Display), Head Tracking Sensor, Puck, Headphone, and Microphone. Using the VR device, assessment test was carried out in a virtual bridge with 3D objects, which are created by VRML (Virtual Reality Model Language) program. As results of tests, it is shown that the cybernetic 3D objects were act as if real things in a real ship's bridge. Therefore, interesting interaction with participants can be obtained in the system, Thus, we found that the proposed system architecture can be applicable to VRSS system construction.

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Aerial Working Platform Training Simulator (고소작업대 조종훈련용 시뮬레이터)

  • Ki, Jae-Sug
    • Proceedings of the Safety Management and Science Conference
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    • 2007.04a
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    • pp.133-141
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    • 2007
  • Aerial working platform is recently used broadly in heavy industry and construction field and also the utilization of it is growing. However, the raise of critical incident caused by unskilled operator is increasing gradually. To reduce and prevent such incident, the training for operating is essential. It's not easy to cover the requirements for the training with real platform because of the high price of it, safety and weather condition. This paper proposes a simulator for the training based on virtual reality to give the training safely regardless to the weather condition and the simulator is deliverable in lower price than real one. The simulator proposed in this paper is available to be set according to the level of trainee managing the assessment level and be also applied for the design of general heavy equipment training simulator based.

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Aerial Working Platform Training Simulator (고소작업대 조종훈련용 시뮬레이터)

  • Ki, Jae-Sug
    • Journal of the Korea Safety Management & Science
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    • v.9 no.4
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    • pp.57-62
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    • 2007
  • Aerial working platform is recently used broadly in heavy industry and construction field and also the utilization of it is growing. However, the raise of critical incident caused by unskilled operator is increased gradually. To reduce and prevent such incident, the training for operating is essential. It's not easy to cover the requirements for the training with real platform because of the high price of it, safety and weather condition. This paper proposes a simulator for the training based on virtual reality to give the training safely regardless to the weather condition and the simulator is deliverable in lower price than real one. The simulator proposed in this paper is available to be set according to the level of trainee's skill managing and be also applied for the design of general heavy equipment training simulator.

Cognitive Evaluation of Geometrical Structure on Express Highway with Driving Simulator (차량시뮬레이터를 이용한 고속도로 복합선형구간에서의 운전자 감성평가)

  • 이병주;박민수;이범수;남궁문
    • Journal of Korean Society of Transportation
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    • v.21 no.4
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    • pp.91-101
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    • 2003
  • This study modeled 4-lane highway in three-dimensional virtual reality in order to overcome difficulties of field experiment. and the research subject was placed in a driving simulator. We survey the driver's cognitive characteristics to the alignment changes in the three-dimensional virtual reality highway. Especially, maximizing the identity of driving movements and virtual scenery on the basis of the data obtained by dynamic analysis module. we minimized simulator sickness for the graphic module of driving simulator. And we carried out cognitive evaluation on the basis of adjective words extracted by dictionary and the opinion of specialist. In this study LISREL model was used to detect the causal relation between geometry and safety in cognitive side, and found that geometric change affects the safety of drivers by static and dynamic road safety model in three-dimensional combined alignments. As the result, for constructing safety road. we consider drivers' cognitive characteristics as human factors in road design, and we think that they are very important factors to improve road safety.

Human Sensibility Ergonomic Evaluation of Sense of Motion Perceived in a Vehicle Simulator (자동차 시뮬레이터의 운동감에 대한 감성평가)

  • Oh, Sang-Min;Son, Kwon;Choi, Kyung-Hyun;Han, Sang-Hyun
    • Transactions of the Korean Society of Automotive Engineers
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    • v.11 no.4
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    • pp.180-188
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    • 2003
  • The vehicle simulator is a useful virtual reality system. The simulator enables engineers to effectively research and analyze various experiments. Therefore, the development of a specific vehicle simulator is required, and its performance must be verified. This paper verifies the performance of Pusan National University Vehicle Simulator. Human sensibility ergonomic tests of vehicle simulator were also executed. The sense of simulator motion was chosen as the standard of performance evaluation. The driver's senses were subdivided into senses of rectilinear and rotational velocities. This study extracted ergonomic sensibility words that can be used to evaluate the performance of the simulator As a practical application of simulator, the relation was studied between the sense of simulator motion and the characteristics of drivers, who are classified into their sexes and driving careers. A statistical method was applied to human sensibility ergonomic tests of vehicle simulator.

3-D Sound-Field Creation Implementing the Virtual Reality Ship Handling Simulator(I): HRTF Modeling (가상 현실 선박 조종 시뮬레이터 구현을 위한 3차원 음장생성(I) : 머리전달함수 모델링)

  • 임정빈
    • Journal of the Korean Institute of Navigation
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    • v.22 no.3
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    • pp.17-25
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    • 1998
  • This paper describes elemental technologies for the creation of three-dimensional(3-D) sound-field to implement the next-generation Ship Handling Simulator with human -computer interaction, known as Virtual Reality. In the virtual reality system, Head-Related Transfer Functions(HRTF's) are used to generate 3-D sound environmental context. Where, the HRTF's are impulse response characterizing the acoustical transformation in a space. This work is divided into two parts, the part Ⅰis mainly for the model constructions of the HRTF's, the part Ⅱis for the control of 3-D sound-field by using the HRTF's . In this paper, as first part, we search for the theory to formulate models of the HRTF's which reduce the dimensionalityof the formulation without loss of any directional information . Using model HRTF's we report results from psychophysical tests used to asses the validity of the proposed modleing method.

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