비정형 건축설계 과정에서 사회적인 상호작용이 가능한 다중사용자 몰입형 가상현실의 유용성 평가

이윤길 사단법인 한국융합기술연구학회 2024 아시아태평양융합연구교류논문지 Vol.10 No.1

몰입형 가상현실 기기 및 기술은 산업 전 분야를 걸쳐 활용되고 있으며 건축 분야에서도 역시 적극적으로 도입되고 있는 실정이다. 최근 건축디자인 도구와 쉽게 접목되고 활용될 수 있는 소프트웨어 기술이 개발되고 몰입형 가상현실 기기의 활용이 원활해진 가운데서 건축디자인 과정에서의 도입이 가속화되고 있다. 즉, 몰입형 가상현실을 지원하는 기기가 있다면 디자인 과정 중에서 쉽게 디자인된 설계안을 기반으로 재현된 가상환경으로 들어가서 자신의 설계안을 경험할 수 있다. 그러나 아쉬운 것은 단순히 디자인된 공간을 탐험하는 것에 그치고 있어 몰입형 가상환경의 성능을 충분히 활용하고 있다고 평가할 수는 없다. 몰입형 가상현실 기술은 공간적인 체험과 함께 사회적인 체험, 상황적인 체험도 가능하기 때문이다. 본 연구는 건축디자인 과정에서 활용 가능한 몰입형 가상현실 기술의 개발 및 이의 유용성의 평가를 목표로 하고 있다. 본 연구에서 제시한 몰입형 가상현실 기술은 단순히 공간적인 체험에 그치지 않고 사회적인 상황을 동반한 체험이 가능한 기술이다. 특히, 실험 대상이 되는 공간을 비정형 건축공간으로 한정하여 경험에 대한 가상현실 공간의 장점을 극대화하였다. 본 연구의 목적을 달성하기 위하여 개발된 몰입형 가상현실 기술을 건축학과 학생들을 대상으로 활용하게 하고 설문조사 및 분석을 통하여 본 기술의 유용성을 평가하였다. 설문 및 분석을 통하여 다중사용자 몰입형 가상현실 기기 및 기술은 창의적인 문제해결 측면에서 몇 가지 유익한 점이 발견되었다. 이는 몰입형 가상현실 기기 및 기술을 통하여 건축가에게 새로운 것을 발견하고 적절한 설계를 지원하는 도구로 활용될 가능성이 있는 것을 시사한다. The integration of immersive virtual reality devices into the architectural design process has accelerated recently due to advancements in software technology that can be readily combined and deployed with these tools. In other words, if you have a device that supports immersive virtual reality, you can easily experience your design by entering a virtual environment recreated based on the design during the design process. However, what is disappointing is that it is limited to simply exploring the designed space, so it cannot be evaluated that the performance of the immersive virtual environment is fully utilized. This is because immersive virtual reality technology allows for social and situational experiences along with spatial experiences. This study aims to develop immersive virtual reality technology that can be used in the architectural design process and evaluate its effectiveness. The immersive virtual reality technology presented in this study is a technology that allows experiences that involve social situations rather than simply spatial experiences. In particular, the space subject to the experiment was limited to an atypical architectural space to maximize the benefits of virtual reality space for experience. To fulfill the purpose of this research, the developed immersive virtual reality technology was used by architecture students, and the usefulness of this technology was evaluated through surveys and analysis. Through surveys and analysis, it was discovered that multi-user immersive virtual reality devices and technologies have several benefits in terms of creative problem-solving. This suggests that immersive virtual reality devices and technologies have the potential to be used as a tool to help architects discover new things and support appropriate design.

A Case Study on Manufacturing Processes for Virtual Garment Sample

( Young Lim Choi ) 한국의류산업학회 2017 한국의류산업학회지 Vol.19 No.5

Advances in 3D garment simulation technology contribute greatly to consumers becoming more immersed in movies and games by realistically expressing the garments the characters in the movie or game are wearing. The fashion industry has reached a point where it needs to maximize efficiency in production and distribution to go beyond time and space in order to compete on the global market. The processes of design and product development in the fashion industry require countless hours of work and consume vast resources in terms of materials and energy to repeat sample production and assessment. Therefore, the design and product development tools and techniques must aim to reduce the sample making process. Therefore, this study aims to study a case for comparing the real garment sample making process to the virtual garment sample making process. In this study, we have analysed the differences between the real and virtual gar-ment making processes by choosing designated patterns. As we can see from the study results, the real and virtual gar-ments generally are made through similar processes in manufacturing, while the time consumed for each shows great variation. In real garment making, scissoring and sewing require the greatest number of work hours, whereas in virtual garment making, most of the time was spent in the simulation process.

Multi-layered Process Isolation Management in Virtual Environment

Tian Junfeng,Zheng Junfang,Cai Hongyun 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.6

For the problem that the process running is not security in the virtual environment, a multi-level process isolation management scheme is proposed. In this scheme, the processes and the basic runtime environment is defined as the process space. It takes a level hierarchical division strategy to classify the processes from the process space into two levels. One of which is the level of credible processes and another is the level data confidential processes. Under the strategy, the processes operate with different permission to ensure the security of sensitive information, prevent data leaking, operate legally and operate under authority. Finally simulation experiment results show that the method has a good protection to the process running in a virtual environment and it can meet the needs of data confidentiality. At the same time, the overhead of running processes is not obvious.

Effective Process Design and Robust Manufacturing for Hydroformed Parts

Stefan Werner,Bart Carleer,Chan-Ho Lee,Dong-Won Jung 대한기계학회 2007 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.21 No.2

A general trend and one of the important strategies in the automotive industry is reducing the lead time of a new car development. In order to obtain this goal the efficient use of simulation software is needed to effectively design a hydroformed part. The stages of the design chain are integrated in one simulation tool. The outcome of this feasibility analysis is a virtual prototype saying that it is possible to produce the part. In fact one process point has been defined whereas when going into production a process window must be know to guarantee a stable production process. In order to achieve this latter we are suggesting a process performance analysis. Based on multiple simulations the influence and sensitivity various process parameters on the forming process can be identified. Besides combining the analysis with statistical process control evaluation the process capability (Cpk-values) can be defined. This design chain analysis will be applied on a hydro formed part. The process performance analysis is the identification of the process window and process capability in advance, so before any tool has been milled. This will be demonstrated on a second hydroformed part.

Development of a Virtual Machine Tool-Part 4: Mechanistic Cutting Force Model, Machined Surface Error Model, and Feed Rate Scheduling Model

Yun, Won-Soo,Ko, Jeong-Hoon,Cho, Dong-Woo Korean Society for Precision Engineering 2003 International Journal of the Korean Society of Pre Vol.4 No.2

A virtual machine tool (VMT) is presented in this two-part paper. In Part 1, the analytical foundation for a virtual machining system is developed, which is envisioned as the foundation for a comprehensive simulation environment capable of predicting the outcome of cutting processes. The VHT system undergoes "pseudo-real machining", before actual cutting with a CNC machine tool takes place, to provide the proper cutting conditions for process planners and to compensate or control the machining process in terms of the productivity and attributes of the products. The attributes can be characterized by the machined surface error, dimensional accuracy, roughness, integrity, and so forth. The main components of the VMT are the cutting process, application, thermal behavior, and feed drive modules. In Part 1, the cutting process module is presented. When verified experimentally, the proposed models gave significantly better prediction results than any other methods. In Part 2 of this paper, the thermal behavior and feed drive modules are developed, and the models are integrated into a comprehensive software environment.vironment.

SE Vehicle 문제점 분석을 통한 DMU 검증력 강화

김현주(Hyunju Kim),김용석(Yongsuk Kim),주용진(Yongjin Choo),이경호(Kyoungho Lee) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11

This paper presents enhanced virtual design review process to improve virtual engineering performance and reduce potential risk in physical build. To understand what we did not conduct virtual load case and what we need to improve, thousands of physical issues were analyzed by categories such as virtual available area or not, development phase, and etc. The proposed virtual design review is to integrate alternatives concerning potential risks based on expert’s experience, lessons learned from existing problem-solving database. About 28% potential issues could be reduced though enhanced virtual design review process.

Process Monitoring and Part Program Optimization Using Virtual Machine Tools

김창주(Chang-Ju Kim),허세곤(Segon Heo),이찬영(Chan-Young Lee),오정석(Jung Seok Oh) Korean Society for Precision Engineering 2022 한국정밀공학회지 Vol.39 No.12

A virtual machine tool, a computer simulation model of the machine motion and cutting process with a level of accuracy and consistency that can replace an accurate machine tool, is one of the critical digital transformation technologies in the manufacturing industry. During the machine development phase, cost and time can be reduced by evaluating machining efficiency and quality through virtual prototyping. In the machine application phase, virtual machine tools can be used to accurately assess the condition of equipment and processes by analyzing actual data combined with simulated data. This paper introduces a virtual machine tool system that can analyze the behavior of an accurate machine tool by integrating physical models of structure, numerical controller, and cutting process. The key features of the virtual machine tool, synchronous machining simulation, machining stability detection, machining error estimation, and part program optimization, were evaluated through various machining tests with a vertical 3-axis milling machine.

Real-time Monitoring of Packet Processing Time for Virtual Network Functions

James Won-Ki Hong,Jae-Hyoung Yoo,Nguyen Van Tu 한국통신학회 2020 한국통신학회 APNOMS Vol.2020 No.09

By enabling the deployment of softwarelized network functions on commodity servers, Network Function Virtualization (NFV) brings many benefits such as rapid development and deployment, simplicity and flexibility in network operations and management. Monitoring the performance characteristics of Virtual Network Functions (VNFs), such as packet processing time, is crucial to achieving maximum benefit from NFV. In this paper, we present Packer Processing Time Monitoring (PPTMon) - a solution for real-time and lightweight VNF packet processing time monitoring. PPTMon embeds timestamp information directly into the packets. PPTMon is implemented using extended Berkeley Packet Filter (eBPF) - a new Linux framework that allows high-speed packet processing. Our experiments showed that PPTMon can monitor VNFs with high accuracy and low performance overhead.

반도체 공정에서의 APC 기법 및 이상감지 및 분류 시스템

하대근,구준모,박담대,한종훈,Ha, Dae-Geun,Koo, Jun-Mo,Park, Dam-Dae,Han, Chong-Hun 제어로봇시스템학회 2015 제어·로봇·시스템학회 논문지 Vol.21 No.9

Traditional semiconductor process control has been performed through statistical process control techniques in a constant process-recipe conditions. However, the complexity of the interior of the etching apparatus plasma physics, quantitative modeling of process conditions due to the many difficult features constraints apply simple SISO control scheme. The introduction of the Advanced Process Control (APC) as a way to overcome the limits has been using the APC process control methodology run-to-run, wafer-to-wafer, or the yield of the semiconductor manufacturing process to the real-time process control, performance, it is possible to improve production. In addition, it is possible to establish a hierarchical structure of the process control made by the process control unit and associated algorithms and etching apparatus, the process unit, the overall process. In this study, the research focused on the methodology and monitoring improvements in performance needed to consider the process management of future developments in the semiconductor manufacturing process in accordance with the age of the APC analysis in real applications of the semiconductor manufacturing process and process fault diagnosis and control techniques in progress.

반도체 공정에서의 APC 기법 및 이상감지 및 분류 시스템

하대근(Dae-Geun Ha),구준모(Jun-Mo Koo),박담대(Dam-Dae Park),한종훈(Chong-Hun Han) 제어로봇시스템학회 2015 제어·로봇·시스템학회 논문지 Vol.21 No.4

Traditional semiconductor process control has been performed through statistical process control techniques in a constant process-recipe conditions. However, the complexity of the interior of the etching apparatus plasma physics, quantitative modeling of process conditions due to the many difficult features constraints apply simple SISO control scheme. The introduction of the Advanced Process Control (APC) as a way to overcome the limits has been using the APC process control methodology run-to-run, wafer-to-wafer, or the yield of the semiconductor manufacturing process to the real-time process control, performance, it is possible to improve production. In addition, it is possible to establish a hierarchical structure of the process control made by the process control unit and associated algorithms and etching apparatus, the process unit, the overall process. In this study, the research focused on the methodology and monitoring improvements in performance needed to consider the process management of future developments in the semiconductor manufacturing process in accordance with the age of the APC analysis in real applications of the semiconductor manufacturing process and process fault diagnosis and control techniques in progress.