• Journal of Digital Contents Society
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• v.9 no.4
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• pp.601-606
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• 2008

U-Healthcare is one of the major applications in ubiquitous sensor network. U-Healthcare has potential to become a critical service for the people who immediately require emergency ambulatory attention. This paper describes about the real time pulse monitoring and reporting system, consisting of two components: thus, the one is a reliable bio-sensor that continuously monitors the pulse information of the subject, and the other is the automatic transfer system that transmits pulse information to both his/her family and hospital care system through the Base Station. In the hospital, this bio-information can be used to treat the patient accordingly. I designed the pulse information monitored by a bio-sensor module that transfers the pulse information to both the Base Station and the central monitoring system through transmitting protocols such as Zigbee and TCP/IP, as well as designed the architecture of information packets for the corresponding protocols. Furthermore, the central monitoring system automatically parses the pulse information of the subject into the web database server, which can continuously provides the real time information and status of the subject via an internet browser to the clients who are family members of the subject and the authenticated medical care personnel as well.

• Proceedings of the KSR Conference
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• 2007.11a
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• pp.989-993
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• 2007

It was intended in this study to seek for the measures to utilize the USN technique, which has high usability due to low price and low power consumption, in air quality monitoring. As a method, the sensors of temperature, humidity, particulate matters (PM10), and carbon dioxide ($CO_2$) were installed in the self-manufactured sensor nodes; the nodes were installed in the waiting rooms and platforms of a subway station and the measurements were collected at real time with use of a computer which micro gateway was built in. Collected data was to be processed by the statistics program installed in the computer; the collected data is to be used in managing the air quality of stations after transmission to the ventilation system of ventilation chambers.

• The Journal of the Korea Contents Association
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• v.10 no.4
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• pp.98-105
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• 2010

Health of the people involved in blood sugar, blood pressure, activity, and using bio-sensors to obtain biometric information, the system for monitoring health research for development is a lot. This paper analyzes the bio information by monitoring the u-health care agent system was developed. Activity measurement technology that uses 3-axis accelerometer sensor. 3-axis acceleration sensors, using information obtained from activity to activity analysis to calculate the exact algorithm was developed. More accurate than the existing system to calculate the calorie consumption, it is stored in the database management. and you can check your health status using of activity and bio-information.

• Journal of Internet Computing and Services
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• v.9 no.3
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• pp.129-139
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• 2008

This paper proposes a Ubiquitous Greenhouse Management System (UGMS) based on USN(Ubiquitous Sensor Network) which can be real-time monitoring and controlling of greenhouse's facilities by collecting environment and soil information with environment and soil sensors, and CCTV camera. The existing systems were controlled simply by temperature. Also, it was possible to monitor only at control room in a greenhouse. For solving problems of the exiting system, our system can remotely monitor and control greenhouse by considering environment information. The detail components are as follows. The system includes the sensor manager and the CCTV manager to gather and manage greenhouse information with soil and the environment sensors, and camera. Also the system has the greenhouse database storing greenhouse information and the greenhouse server transmitting greenhouse information to the GUI and controlling greenhouse. Finally, the GUI showing greenhouse condition to users exists in our system. To verify the executability of the UGMS, after developing the greenhouse model, we confirmed that our system could monitor and control the greenhouse condition at remote GUI by applying the UGMS's components to the model.

• Journal of the Korea institute for structural maintenance and inspection
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• v.16 no.1
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• pp.120-130
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• 2012

As long span and complex bridges are constructed often recently, safety estimation became a big issue. Various types of measuring instruments are installed in case of long span bridge. New wireless technologies for long span bridges such as sending information through a gateway at the field or sending it through cables by signal processing the sensing data are applied these days. However, The case of occurred accidents related to bridge in the world have been reported that serious accidents occur due to lack of real-time proactive, intelligent action based on recognition accidents. To solve this problem in this study, the idea of "communication among things", which is the basic method of RFID/USN technology, is applied to the bridge monitoring system. A sensor node module for USN based intelligent bridge system in which sensor are utilized on the bridge and communicates interactively to prevent accidents when it captures the alert signals and urgent events, sends RF wireless signal to the nearest traffic signal to block the traffic and prevent massive accidents, is designed and tested by performing TinyOS based middleware design and sensor test free Space trans-receiving distance.

• International Journal of Contents
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• v.12 no.2
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• pp.12-23
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• 2016

This paper presents a novel concept of Disaster Prevention Design (DPD) and its derived subjects and topics for the safety of folk villages in both Korea and Japan. Nowadays, design concepts are focused on 'human-oriented nature' as a whole and this tendency fits to be appropriate for disaster prevention against real dangers of a future society, which is expected to have far more complicated features. On the other hand, convergences have performed with other areas in the field of Information Communication Technology (ICT) so that we can easily find examples like 'the strategy of ICT-based convergence' of the Korean Government in 2014. Modern content designs including UI (user interface) and USN (ubiquitous sensor network) have been developed as one of the representative areas of ICT & UD (universal design) convergences. These days this novel concept of convergence is overcoming the existing limitations of the conventional design concept focused on product and/or service. First of all, from that point our deduced topic or subject would naturally be a monitoring system design of constructional structures in folk villages for safety. We offer an integrated model of maintenance and a management-monitoring scheme. Another important point of view in the research is a safety sign or sign system installed in folk villages or traditional towns and their standardization. We would draw up and submit a plan that aims to upgrade signs and sign systems applied to folk villages in Korea and Japan. According to our investigations, floods in Korea and earthquakes in Japan are the most harmful disasters of folk villages. Therefore, focusing on floods in the area of traditional towns in Korea would be natural. We present a water-level expectation model using deep learning simulation. We also apply this method to the area of 'Andong Hahoe' village which has been registered with the World Cultural Heritage of UNESCO. Folk village sites include 'Asan Oeam', 'Andong Hahoe' and 'Chonju Hanok' villages in Korea and 'Beppu Onsen' village in Japan. Traditional Streets and Markets and Safe Schools and Parks are also chosen as nearby test-beds for DPD based on ICT. Our final goal of the research is to propose and realize an integrated disaster prevention and/or safety system based on big data for both Korea and Japan.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.05a
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• pp.414-418
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• 2010

일반적으로 넓은 공간상에서 시간의 흐름에 따라 변화하는 이동객체의 '위치 정보'를 기반으로 사용자의 작업과 관련 있는 적절한 정보 또는 서비스를 제공하는 경우 이를 위치 추적(인식) 시스템으로 정의한다. RFID, USN, RTLS, GPS는 위치 인식 시스템의 대표적인 기술이며 해양, 농촌, 병원, 건축 등의 다양한 분야에서 적용 확산이 빠르게 진행되고 있다. 이러한 기술은 유비쿼터스 컴퓨팅의 핵심 기술로서 현대사회의 관심이 집중되고 있는 아동실종, 도난, 학교폭력 등의 문제를 해결하는데 적용될 수 있다. 본 논문에서는 이동객체를 모니터링하기 위한 접근법을 분석하고 이를 기반으로 RFID를 이용한 학생 이동 관리 시스템의 구축 내용을 기술한다. 이 시스템은 RFID로부터 획득되는 이동객체(학생)에 대한 실시간 데이터를 업무에 적절한 정보로 변환하여 사용자에게 알려준다. 이 시스템을 구축함으로써 관리자는 학교내부의 학생 위치를 실시간으로 식별 할 수 있고 미리 설정된 제한구역에 접근하는 학생을 신속하게 인지 할 수 있다. 또한 과거의 이력정보를 검색 할 수 있음으로써 실종, 도난 등에 대한 사후예측이 가능해짐에 따라 수동적이었던 학생 관리에 비해 융통적인 관리의 효과가 있고 안전한 학교생활을 학생들에게 제공해 줄 수 있게 된다.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.229-233
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• 2011

IT기술의 발달과 함께 최근 유비쿼터스 패러다임이 등장함에 따라 수자원분야의 정보화 환경이 변화하여야 한다는 논의가 활발하다. 빈번하게 발생하고 있는 자연재해에 있어서 주요 치수시설물의 안전모니터링은 새로운 기술의 적극적인 도입과 개발이 필수적이다. 또한 지속적인 수자원 관리 및 활용 고도화를 위해서도 정보화 경쟁력을 제고하고, 높아지는 사용자의 서비스 요구수준을 충족시켜야할 필요가 있다. 본 연구는 제방 및 보(수문)의 안전모니터링 선진화를 위해 다음과 같은 과정으로 연구하였다. 주요 치수시설물의 안전모니터링 요소를 분석하기 위해 붕괴원인 유형에 따른 주요 모니터링 취약성 인자를 도출한다. 취약성 인자 중 제방의 경우 침투, 침식, 월류, 구조물에 의한 붕괴 등에 의한 유형과 보(수문)의 경우 전도, 활동, 부유 등 다양한 관련 붕괴 현상을 검토하여 각각의 발생된 인자 특성별 모니터링이 가능하도록 최적 센서를 도출한다. 이러한 일련의 과정은 과거의 계측기를 통하거나 육안 및 수동적인 모니터링에서 벗어나, IT기술의 통신분야와 융합한 무선센서네트워크를 적용하여 경제성, 효율성, 현실성을 가지는 치수시설물의 모니터링이 가능하도록 하였다. 향후 이러한 USN(Ubiquitous Sensor Network) 등 유비쿼터스의 융합과 IT기술을 활용한 치수시설물 안전모니터링 선진화를 통해 홍수방어 및 관리시스템 구축에 활용되어 인명 및 재산피해를 절감하고 기술수준을 향상시킴으로서 홍수 재해로부터 안전한 국토 건설 및 국민의 삶의 질을 향상시킬 것이다. 또한, 국가 홍수관리 시스템 구축, 치수능력증대, 장래유역단위 통합홍수방어 및 관리기술 개발에 기여할 것으로 판단된다.

• Journal of the Korean Society for Railway
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• v.11 no.4
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• pp.364-370
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• 2008

In this paper, we proposed new sensor network architecture with autonomous robots based on beacon mode and implemented real time monitoring system in real test-bed environment. The proposed scheme offers beacon based real-time scheduling for reliable association process with parent nodes and dynamically assigns network address by using NAA (Next Address Assignment) mechanism. For the large scale multi-sensor processing, our real-time monitoring system accomplished the intelligent database processing, which can generate not only the alert messages to the civilians but also process various sensing data such as fire, air, temperature and etc. Moreover, we also developed mobile robot which can support network mobility. Though the performance evaluation by using real test-bed system, we illustrate that our proposed system demonstrates promising performance for emergence monitoring systems.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.561-564
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• 2009

This paper present design and implementation of U-city infrared image surveillance system based on the digital media processor. The hardware is designed and implemented by using commercial chips such as DM642 processor and video encoder, video decoder and the functions of software are to analyze temperature distribution of a monitoring image and to monitor disaster situation such as fire. The required functions and performances are confirmed by testing of the prototype and we verified practicality of the system.