• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2002년도 추계학술발표논문집 (하)
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• pp.2261-2264
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• 2002

미션 크리티컬 영역의 실시간 소프트웨어의 프로세스들은 시스템 요구사항에 맞게 제한된 시간안에 수행되도록 프로세스를 설계되고 구현되어야 한다. 본 논문에서는 원자력발전소의 감시와 제어를 담당하는 MMIUNIX 소프트웨어 실시간 프로세스들을 관리 통제하는 방법을 제안한다. 제안한 방법이 원자력 발전소의 특수한 환경에 적합하게 사용할 수 있는지 알아보기 위해서 시간제약 조건 관점에서 성능평가를 수행한다.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2002년도 봄 학술발표논문집 Vol.29 No.1 (B)
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• pp.379-381
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• 2002

소프트웨어 개발 프로젝트에서 소프트웨어 요구사항의 잦은 변경 또는 요구사항 확정의 지연은 소프트웨어의 품질저하, 납기지연, 개발요구자와 개발담당자 간의 의견충돌을 야기한다. 특히 원자력발전소 환경과 같은 mission-critical 영역의 경우에는 발전소 건설자체를 지연시킬 수 있는 심각한 결과를 초래한다. 본 논문에서는 원자력발전소의 감시와 제어를 담당하는 MMIS(Man Machine Interface System) 환경을 동적으로 모의하는 소프트웨어 개발 과정에서 요구사항 변경의 가능성을 최소화시킬 의도로 시도하였던 요구사항 우선순위 설정에 대한 경험과 교훈을 살펴본다. 또한, 요구사항 우선순위를 기반으로 한 소프트웨어 개발 공정 활동을 토의한다

• 시스템엔지니어링학술지
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• 제11권1호
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• pp.33-39
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• 2015

This paper describes a development of aircraft carrier aviation support system architecture using DoDAF. The aircraft carrier, a warship performing a role of mobile sea air base in offensive and defense mission, is super system that is comprised of carrier itself and carrier-based airwing. Performing critical role in step with aviation operations in carrier-airwing interactions, the aviation support system of aircraft carrier is also system of systems. It requires a complex and integrated approach based on systems engineering in establishing concept of this complex systems. In this view, this study establishes an operational scenario and derives operational requirements by identifying aviation operations environment on deck of aircraft carrier. The study presents the operational architecture of the carrier aviation support system by using DoDAF and CASE tool CORE.

• 한국군사과학기술학회지
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• 제25권2호
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• pp.177-186
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• 2022

A network QoS model for the joint integrated C4I structure was proposed for the integration of network infrastructure and network operations(NetOps) for NCOE. Detailed QoS requirements process of the joint integrated C4I systems are needs in the Multi-Domain Operation Environment(MDOE). A process is proposed for identifying QoS requirements and establishing in the MDOE using JMT(Joint Mission Thread) reference architecture and solution architecture. Mission analysis identify JCOAs(Joint Critical Operational Activities) and related activities based on JMT & System architecture's OVs, and Information analysis identify QoS attributes using System architecture's SVs. Identifying QoS attributes will be registered at PPS Registry by pre-regulated process, and will be set-up by NetOps. MDOE QoS requirement Process will support efficiently MUM-T and smart defense platform users under the future uncertain battlefield circumstances.

• 대한원격탐사학회지
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• 제16권2호
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• pp.157-175
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• 2000

A synthetic aperture radar (SAR) system is able to provide all-weather, day-and- night superior imaging capability of the earth surface, and thus is extremely useful in surveillance for both civil and military applications. In this paper, the X-band high resolution spaceborne SAR system design is demonstrated with the key design performance for a given mission and system requirements characterized by the small satellite system. The SAR multi-mode imaging technique is presented with a critical parameter assessment, and the standard mode results are analyzed in terms of the image quality performances. In line with the system requirement X-band SAR payload and ground reception/processing subsystems are designed and the major design results are presented with the key performance characteristics. This small satellite SAR system shows the wide range of imaging capability with high resolution, and proves to be an effective surveillance systems in the light weight, high performance and cost-effective points of view.

• 대한임베디드공학회논문지
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• 제9권4호
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• pp.211-217
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• 2014

Cyber-Physical Systems(CPS) that mostly provides safety-critical and mission-critical services requires high reliability, so that system testing is an essential and important process. Hardware-In-the-Loop Simulation(HILS) is one of the extensively used techniques for testing hardware systems. However, most conventional HILS has problems that it is difficult to support a distributed operating environment and to reuse a HILS platform. In this paper, we introduce EcoHILS(ETRI CPS Open Human-Interactive hardware-in-the-Loop Simulator) in order to test CPS effectively. Moreover, feasibility tests and performance tests of EcoHILS are performed to confirm its effectiveness.

• 항공우주시스템공학회지
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• 제3권1호
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• pp.6-11
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• 2009

It is anticipated that quality assurance for the Ka band Communication Payload System(COPS) development program of the communication, Ocean & Meteorological Satellite(COMS) may be a core technical factor to be concerned in order to avoid any failure, and to assure its final performance during the mission lifetime in space. Those can be managed and verified and assessed by performing the Quality Assurance (QA) and risk management which helps to prevent and to reduce the critical fails. This paper introduces the Product Assurance (PA) system and procedures for controlling and monitoring sub-contractors which were participated in Ka band Communication Payload System (COPS) development. Also this paper shows Quality Assurance (QA) procedures and detailed their processes for assured the product performed by local companies from site survey for selecting companies to delivery of their equipment.

• 항공우주시스템공학회지
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• 제2권1호
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• pp.22-27
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• 2008

It is anticipated that quality assurance for the Ka band Communication Payload System(COPS) development program of the Communication, Ocean & Meteorological Satellite(COMS) may be a core technical factor to be concerned in order to avoid any failure, and to assure its performance during the mission lifetime in space. Those can be managed and verified and assessed by performing the Quality Assurance (QA) and risk management which helps to prevent and reduce the critical fails. This paper introduces the Product Assurance (PA) system and procedures for Ka band Communication Payload System which was established and performed during the Qualification Model (QM) manufacturing phase. In this paper, we present detailed process for the products manufactured by local companies according to PA procedures operated through whole phases from design to test of equipment. Also this paper shows Quality Assurance (QA) procedures and detailed their processes for assured the product quality manufactured by local companies.

• 제어로봇시스템학회논문지
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• 제10권6호
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• pp.557-565
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• 2004

The Korean space program was marked by the successful launching of a KSR-III liquid propelled sounding rocket. The Inertial Navigation System (INS) which carries out critical mission functions of navigation, guidance and control was domestically developed and perfectly certified through the flight test. The system consists of a strapdown inertial measurement, an onboard computer and flight software. This paper will describes the development works of the inertial navigation system, including top level system design, hardware and software. And it summarizes flight results.

• 한국안전학회지
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• 제28권1호
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• pp.132-136
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• 2013

Even though most of domestic corporations are doing various activities to reduce disasters, it is true that those are actually limited to some parts of business or the formalities in order to obtain specific certificates. For that reason, this writer study a efficient utilization of a guideline about accident provision and business continuity management for less disasters of companies, prevent interruption of critical mission. In short, it is required to operate an effective disaster recovery system and safety management system integrated by a mutual recognition on the relevant parts and different parts. And there is a need to establish a integrated recovery center in order to manage disaster recovery system realistic and effective.