• 대한임베디드공학회논문지
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• 제8권2호
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• pp.79-85
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• 2013

This paper proposes a system that utilizes USN(Ubiquitous Sensor Network), Bluetooth and smart phone to improve the function of senior houses. In typical approach, a system in a senior house either directly accesses the status of elderly people by its sensor or is alerted by elderly people who trigger an emergency bell, derive a decision and take an appropriate action. In addition, it is possible for a designated social worker to check the status of senior patients through monitoring system connected by UTP(Unshielded Uwisted Pair) cables, but the responsible person has to be present to monitor patients' status. However, the new system, suggested in this paper, embed Bluetooth function in a blood pressure gauge, thus the smart phone receives patients' health information such as blood pressure through Bluebooth, if any abnormal event occurs. Consequently, the smart phone sends SMS(Short Message Service) to a responsible social worker or a designated hospital. When this program in the paper becomes a reality, an unmanned system that is able to determine suitable actions for certain events will be established, even if a social worker were absence.

• 한국콘텐츠학회논문지
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• 제3권1호
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• pp.71-79
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• 2003

현재까지는 해양 어류의 생태와 양식과정 등을 연구하기 위해서 연구자가 직접 육안으로 실험환경을 관찰하였으며, 양어장의 영상, 온도와 같은 상태 등의 정보를 실험실 내에서만 모니터링 할 수 있었다. 기존의 이러한 방식은 과학적이고 체계적인 방법으로 어류의 생태를 관찰할 수 없고, 많은 연구 인력이 필요하다. 따라서 본 논문에서는 리눅스를 운영체제로 사용한 임베디드 시스템을 이용하여 원격지의 실험환경 상태를 언제, 어디서든 인터넷을 통하여 실시간으로 전송 받아, 그 상태를 종합적으로 검사 및 분석할 수 있는 양어장 모니터링 시스템을 설계 및 구현한다.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 1995년도 추계학술발표회논문집(1)
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• pp.185-190
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• 1995

Conventional alarm system has many difficulties in the operator's identifying the plant status during special situations such as design basis accidents. To solve the shortcomings, an on-line alarm annunciator system, called dynamic alarm console (DAC), was developed. In the DAC, a signal is generated as alarm by the use of an adaptive setpoint check strategy based on operating mode, and time delay technique is used not to generate nuisance alarms. After alarm generation, if activated alarm is a level precursor alarm or a consequencial alarm, it would be suppressed, and the residual alarms go through dynamic prioritization which provide the alarms with pertinent priorities to the current operating mode. Dynamic prioritization is achieved by going through the system- and mode-oriented prioritization. The DAC has the alarm hierarchical structure based on the physical and functional importance of alarms. Therefore the operator can perceive alarm impacts on the safety or performance of the plant with the alarm propagation from equipment level to plant functional level. In order to provide the operator with the most possible cause of the event and quick cognition of the plant status even without recognizing the individual alarms, reactor trip status tree (RTST) was developed. The DAC and the RTST have been simulated with on-line data obtained from the full-scope simulator for several abnormal cases. The results indicated that the system can provide the operator with useful and compact information fur the earlier termination and mitigation of an abnormal state.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2007년도 추계 종합학술대회 논문집
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• pp.517-521
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• 2007

국내 슈퍼컴퓨팅자원을 상호 연동하여 국가 과학기술 개발에 활용함으로써 공공 슈퍼컴퓨팅자원의 활용을 극대화 하기 위해 추진되고 있는 국가슈퍼컴퓨팅공동활용체제구축사업(PLSI)에서는 여러 기관의 자원을 국내 연구자들에게 서비스를 할 예정에 있다. PLSI사업에 참여한 기관들은 각자 환경에 적합한 시스템 모니터링 시스템을 구축하고 있으나 각 기관간에 서로 상이한 환경을 운영되고 있기 때문에 여러 기관들의 시스템 정보를 한번에 파악하기는 어려운 상태이다. 본고에서는 통합 관제센터에서 단일 GUI 환경을 통하여 PLSI 사업에 참여한 여러 기관들의 자원의 상태 및 사용자 작업 정보 등을 용이하게 파악하기 위한 통합 모니터링 시스템을 구축하였다.

• Smart Structures and Systems
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• 제31권6호
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• pp.573-583
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• 2023

Although unmanned aerial vehicles have been used to overcome the limited accessibility of human-based visual inspection, unresolved issues still remain. Onsite inspectors face difficulty finding previously detected damage locations and tracking their status onsite. For example, an inspector still marks the damage location on a target structure with chalk or drawings while comparing the current status of existing damages to their previous status, as documented onsite. In this study, an augmented-reality-based structural inspection system with onsite damage information marking was developed to enhance the convenience of inspectors. The developed system detects structural damage, creates a holographic marker with damage information on the actual physical damage, and displays the marker onsite via an augmented reality headset. Because inspectors can view a marker with damage information in real time on the display, they can easily identify where the previous damage has occurred and whether the size of the damage is increasing. The performance of the developed system was validated through a field test, demonstrating that the system can enhance convenience by accelerating the inspector's essential tasks such as detecting damages, measuring their size, manually recording their information, and locating previous damages.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.344-348
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• 2015

The image data of the web camera is used to identify the construction status of the site in a remote office and it can be used for safety management. This study develops a construction schedule simulation system based on the active nD object linked with real image data of web camera from the construction site. The progress control method by 4D object uses a method that the progress of each activity is represented with different colors by progress status. Since this method is still based on a virtual reality object, it is less realistic description for practical engineers. Therefore, in order to take advantage of BIM more realistic, the real image of actual construction status and 4D object of planned schedule in a data date should be compared in a screen simultaneously. Those methodologies and developed system are verified in a case project where a web camera is installed for the verification of the system.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2001년도 추계학술대회 학술발표 논문집
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• pp.271-274
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• 2001

Recently, most vehicles has the Automatic transmission system as their transmission system. The automatic transmission system operates with fixed shift patterns. In the opposite of manual operation, it is easy and convenient for driving. Though these merit, the system can not evaluate the driver's intension because of usage of fixed shift pattern, To consider driver's intension, we must consider both the driving intensity of driver and the status of vehicle. In this paper, we developed flexible automatic transmission system by using the proposed moduled neural networks which can learn the status of the vehicle and driver's intensity As a result, we compare the transmission system using fixed shift pattern and the proposed transmission system and show the good performance in the change of shift position.

• 한국생산제조학회지
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• 제9권1호
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• pp.128-135
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• 2000

This paper presents a polishing expert system integrated with sensor information which can modify the polishing sequence and conditions initially determined by the system depending on the on-site polishing status. A practical system using AE sensor to detect the on-line polishing status is developed for the rotational polishing and the smoothly curved sur-face. Database and knowledge base for polishing processes are established by using the results of experiments and also expert's experience. Evaluations are performed for a die of headlight lamp by using both the sensor integrated expert sys-tem and the expert system without sensor. The test results show that the sensor integrated expert system provides more optimal polishing conditions since the proposed system takes advantage of on-line sensor information.

• 한국컴퓨터정보학회논문지
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• 제3권2호
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• pp.161-168
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• 1998

본 논문은 상호참여형 CBM(Computer Based Multimedia) 기반의 원격지 방범시스템 기술에 관한 연구이고, 이는 방범진행중에 각 실의 모니터링을 통한 추가기능이 지원된다. 본 시스템은 ISDN 망을 이용한 센서에 의한 상황을 체킹하고 방범상황을 송신하게 된다. 본 원격지 방범시스템은 El/Tl 의 초고속정보통신망을 이용한 빠르고 안전한 시스템이다. 또한, 본 시스템은 ISDN 공중망을 이용한 방범시스템을 지원하고 있으며, 또한 모니터링 시스템은 방범시스템의 중앙 통제자에게 각 지역의 상황을 전송하여 모니터링하게 한다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 춘계학술대회 논문집
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• pp.708-713
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• 1997

A remote data communication system for monitoring of NC machine fault diagnosis and status is developed. This system communicates with host PC by using dial-up communication method on PSTN. The developed system consists of (1)remote communication module among NC's and host PC using PSTN, (2) 8 channels analog data sensing module, (3) digital I/O module for control of NC machine, (4) communication module between NC machine and remote data communication system using RS-232c, and (5) Software man-machine interface. This system may be applied for remote sensing of the status in Fms. To show the veridity of the developed system, several examples are illustrated.