• Journal of the Korea Safety Management & Science
• /
• v.11 no.1
• /
• pp.183-191
• /
• 2009

The purposes of this research are presenting a new business model by introducing USN/ZigBee and measuring productivity using BSC(Balanced scorecard), and becoming a cornerstone by presenting a prototype of ServiceScience which is getting more attention from Industrial Engineering and Management. The new business model consists of development of leak current monitoring sensor using USN/ZigBee and the adoption of RCM(Reliability-Centered Maintenance) using knowledge-based system at current distribution. Additionally, for the measurement of this new model's productivity, ESC is used, and the strategic map and measurement indices are produced. The main contributions of this paper are showing a concrete model of ServiceScience and demonstrating this model can be extended to similar areas like are gas, water etc.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.17 no.3
• /
• pp.145-152
• /
• 2017

In this paper, GNSS(global navigation satellite system) to monitoring the fine for the construction of structure displacement based on satellite communications signals of GNSS. At the same time on USN(ubiquitous sensor network) and proposed a new approach to precise positioning by analyzing the results. A major construction structure for the safety diagnosis and prevent disaster from the risk of collapse. Precision measurement methods to mm level GNSS in that case and experiments in the application of new technologies that can most commonly used to replace the current through the permanent. The way a GNSS baseline and tested it on to prove. As a result, at our country at precise positioning and fine displacement monitoring application virtual reference station(VRS) in a GNSS mm of a margin of error of horizontal and vertical directions can be found.

• Proceedings of the Korea Contents Association Conference
• /
• 2016.05a
• /
• pp.195-196
• /
• 2016

본 연구는 건설된 구조물의 주요 구조부재에 각종 계측 Sensor를 설치하여 이로부터 다양한 정보를 제공받아 Monitoring하는 계측 System은 대형구조물의 구조적 응답을 계측하여 분석하고, 구조물의 위험요소를 사전에 발견하고 분석하여 적절한 대책을 수립함으로써 대형 시설물의 수명연장 및 유지관리 비용의 효율성을 높이고, 구조물의 사용성 및 안전성을 확보하고, 그 설계수명을 유지할 수 있는 것이다. 계측전 초기치와의 비교 및 시간 경과에 따른 추이 분석을 통해 이상상태를 발견하는 신호 기반 감시 수행하고 있고, 상태판정 및 손상도 추정이 가능하므로 향후 계속해서 발전시켜 나갈 수 있는 지식기반 감시시스템이 필요하므로 본 연구에서는 공간 정보기반의 정보를 재생하여 GNSS/USN기술을 접목시켜감으로 대형시설물 안전관리가 매우 용이하게 적용할 수 있도록 하였다.

• International Journal of Fuzzy Logic and Intelligent Systems
• /
• v.9 no.4
• /
• pp.301-308
• /
• 2009

In the modern life, machines are used for various areas in industries as the advance of science and industrial development has proceeded. In many machines, the rotating machines play an important role in many processes. Therefore, the development of fault diagnosis and monitoring system for rotating machines is required. An ubiquitous sensor network (USN) is a combination of the key computer science and engineering area technology including the wireless network, embedded system hardware and software, communication, real-time system, etc. It collects environmental information to realize a variety of functions. In this work, a data reduction algorithm for USN based remote fault diagnostic system which can be easily applied to previously built factories is proposed. To verify the feasibility of the proposed scheme, some simulations and experiments are executed.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2009.01a
• /
• pp.255-258
• /
• 2009

본 논문은 USN시스템을 이용해서 실시간으로 병원의 각 병실에 대한 센서에서 측정된 정보를 관리자에게 실시간으로 모니터링 할 수 있도록 해주며 노드의 설정이나 프로그램 전송을 다른 프로그램을 사용하지 않고도 센서에 전송할 수 있게 한다. 또한 이 시스템에서는 단순한 모니터링뿐만 아니라 제어장비를 통해서 환경을 자동으로 제어할 수 있도록 하는 일체형 시스템 구축을 목표로 한다. 본 논문에서는 제안한 시스템과 기존의 병원 시스템과 비교해 보았다.

• Journal of the Korean Society of Hazard Mitigation
• /
• v.8 no.4
• /
• pp.9-16
• /
• 2008

Ubiquitous technology is proposed which is used wireless sensor network for deflection management at casting and after casting of FCM bridge. Proposed method are analyzed which are sensor experiment and existing FCM bridge using ubiquitous sensor network. Wireless sensor network enables low-cost sensing of environment. As a results, the field application shows that USN is useful method for structural health monitoring system which long distance away.

• 한국IT서비스학회:학술대회논문집
• /
• 2009.11a
• /
• pp.467-472
• /
• 2009

USN은 하드웨어와 유 무선 통신기술이 서로 네트워크로 연결되어 사물이나 환경의 정보를 획득하고 가공해 유용한 정보로 창출하는 것을 목표로 하고 있으며, 그 중 u-Healthcare는 의료 서비스 질 향상이라는 필요성에 의해 이슈가 되고 있다. 본 논문에서는 이 기종 센서 네트워크에서 획득한 데이터를 추상화하고 상황에 맞는 서비스를 제공하는 지능형 미들웨어를 설계하였다. 설계된 미들웨어를 사회적 이슈가 되고 있는 IT의료 분야에 적용해서 헬스 케어 모니터링 시스템을 구현했다. 센서를 통해 온도, 습도, 조도, 심박 수, 체온을 측정해서 실시간으로 관리하고 모니터링 하는 기능을 지원한다. 또한, 실시간으로 전달되는 바이오 정보를 통합 관리하는 부분에 초점을 맞추어 연구를 진행했다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2013.10a
• /
• pp.69-70
• /
• 2013

Through shipbuilding industry and IT convergence, high effiency of production facilities and process will be achieved. Using LTE based communicator, variable sensing data obtained from shipyard cabe be transmitted to central server. This agent system can be applied to total monitoring, sail test, and accident prevention, etc.

• Journal of Electrical Engineering and Technology
• /
• v.4 no.1
• /
• pp.143-148
• /
• 2009

About 70% of Korea consists of mountainous areas, and during the construction of many roads and railroads, cut slopes are inevitably formed. The rainy season, frost heaving in winter, and thawing in spring can all cause rockfalls and landslides. The failure of these slopes is increasing every year, causing damage to vehicles, personal injury and even death. To protect people and property from such damage, a real-time monitoring system is needed to detect the early stages of slope failures. The GMG placed TRS sensor units in the slopes to monitor them in real-time. But due to its reliance on data lines and power lines, the system is vulnerable to lightning damage. The whole system can be damaged by a single lighting strike. Consequently, for the purposes of this paper we propose the use of the Ubiquitous Sensor Network (USN) which follows the IEEE 802.1.4. By using the USN system we can minimize lightning damage and can monitor the movement of the slopes consistently.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.12 no.9
• /
• pp.1623-1632
• /
• 2008

In food choice, consumers consider importantly food safely and reliability focusing on a high qualify control. Also they are concerned about sustainable production and consumption considering of area and environment. In this paper, We propose and design the high-quality seafood production support system that is based on international sanitary standard haccp, traceability and eco-fiendly seafood certification for safety and reliability of the seafood production. The system is categorized into five part: aquafarm haccp, environmental control monitoring, traceability, disease prevention and messenger service and seafood price inquiry service. The proposed system utilize diverse ubiquitous-it technologies like usn, network cctv, mobile device etc.