• Journal of the Institute of Electronics Engineers of Korea TC
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• v.49 no.1
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• pp.31-46
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• 2012

The most critical technology to implement ubiquitous health care is Ubiquitous Sensor Network (USN) technology which makes use of various sensor technologies, processor integration technology, and wireless network technology-Radio Frequency Identification (RFID) and Wireless Sensor Network (WSN)-to easily gather and monitor actual physical environment information from a remote site. With the feature, the USN technology can make the information technology of the existing virtual space expanded to actual environments. However, although the RFID and the WSN have technical similarities and mutual effects, they have been recognized to be studied separately, and sufficient studies have not been conducted on the technical integration of the RFID and the WSN. Therefore, EPCglobal which realized the issue proposed the EPC Sensor Network to efficiently integrate and interoperate the RFID and WSN technologies based on the international standard EPCglobal network. The proposed EPC Sensor Network technology uses the Complex Event Processing method in the middleware to integrate data occurring through the RFID and the WSN in a single environment and to interoperate the events based on the EPCglobal network. However, as the EPC Sensor Network technology continuously performs its operation even in the case that the minimum conditions are not to be met to find complex events in the middleware, its operation cost rises. Moreover, since the technology is based on the EPCglobal network, it can neither perform its operation only for the sake of sensor data, nor connect or interoperate with each information system in which the most important information in the ubiquitous computing environment is saved. Therefore, to address the problems of the existing system, we proposed the design and implementation of USN integration management system. For this, we first proposed an integration system that manages RFID and WSN data based on Session Initiation Protocol (SIP). Secondly, we defined the minimum conditions of the complex events to detect unnecessary complex events in the middleware, and proposed an algorithm that can extract complex events only when the minimum conditions are to be met. To evaluate the performance of the proposed methods we implemented SIP-based integration management system.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2005.11a
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• pp.199-202
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• 2005

최근 디지털 기기들이 융복합화 되며 다양한 기능을 갖춘 제품이 출시되고 있고, 유비쿼터스 환경을 이끌어갈 제품으로 스마트폰이 주목받고 있다. 스마트폰에서 실행되는 다양한 사용자 행동 정보들 중에 중요한 의미를 지닌 행동들을 찾아내고 기록해서 사용자의 중요했던 기억을 찾는데 도움을 줄 수 있다. 스마트폰을 사용하면서 얻어지는 행동 정보들은 양이 방대하여 기존의 시간대별 또는 카테고리식의 나열은 사용자가 필요한 정보를 쉽게 얻기에는 한계가 있다. 따라서 본 연구에서는 키그래프를 사용해 사용자 행동 정보를 분석하고 핵심 이벤트 중심의 사용자 정보 관리 방법을 제안한다. 키그래프는 단순히 행동 정보의 빈도수가 많다고 높은 점수를 부여하는 것이 아니라 빈도수가 낮더라도 중요한 이벤트 정보를 발견할 수 있다. 시나리오를 바탕으로 만들어진 사용자 정보를 분석해서 시간의 흐름에 따른 핵심 이벤트와 그와 관련된 이벤트를 찾아내는 서비스를 생성하고 제안한 시스템의 유용성을 보인다.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10b
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• pp.112-114
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• 2003

오늘날은 지능화된 사물이 스스로 공간의 상황을 인식하여 필요한 행위를 대신해 주는 유비쿼터스 컴퓨팅 환경으로 빠르게 발전하고 있다. 이러한 변화는 언제 어디서나 상황 정보를 분석하여 원하는 사용자에게 실시간으로 알려줄 수 있는 알림 서비스에 대한 관심으로 이어지고 있으며, 현 물류 시스템에서도 실물의 흐름과 정보의 흐름간에 불일치와 같은 문제점들을 해결하기 위한 변화를 요구하고 있다. 알림 서비스 또는 이벤트 통지 서비스는 정보의 제공자 측에서 발생한 새로운 이벤트에 대해 관심있는 사용자에게 알려주는 서비스로, 정보의 제공자와 관심있는 사용자를 연결하는 역할을 한다. 이 논문에서는 통합물류운송 시스템에 적용 가능한 알림시스템의 응용 시나리오를 기술하고, 전체 시스템의 구조, 데이터 모델을 제안한다. 또한 이벤트 대수를 이용하여 복합 이벤트를 정의함으로써 응용하는 시스템의 적합함을 설명한다.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06a
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• pp.425-427
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• 2012

본 논문에서는 상황인지 시스템에서 규칙들간에 발생하는 충돌을 실행 이전에 탐지하기 위한 기법을 소개한다. 사용자가 새로운 규칙을 입력하면, 이벤트, 조건, 액션 정보를 단계적으로 분석하여, 동일한 이벤트가 상이한 서비스를 요구하는 규칙들을 탐지한다. 이는 실행 중에 발생되는 충돌을 감소시킴으로써, 동적 충돌 탐지 및 해결 대상을 감소시킨다. 제안된 기법은 규칙 기반 상황인지 미들웨어 상에 구현되었다.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.46 no.10
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• pp.1-7
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• 2009

Nowadays there are many studies and there's huge development about RFID and WSN which have great developmental potential to many kinds of applications. In particular, the healthcare field is expected to could be securing international competitive power in u-Healthcare and combined medical treatment industry and service. More and more real time application apply RFID and WSN technology to identify, data collect and locate objects. Wide deployment of RFID and WSN will generate an unprecedented volume of primitive data in a short time. Duplication and redundancy of primitive data will affect real time performance of application. Thus, emerging applications must filter primitive data and correlate them for complex pattern detection and transform them to events that provide meaningful, actionable information to end application. In this paper, we design a complex event processing system. This system will process RFID and WSN primitive data and event and perform data transformation. Integrate RFID and WSN system had applied each now in medical treatment through this study and efficient data transmission and management forecast that is possible.

• The KIPS Transactions:PartD
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• v.17D no.4
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• pp.259-270
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• 2010

Information systems nowadays are heterogeneous and distributed which integrate the enterprise information by processes. They are also very complex, because they are linked together by processes. It aims to integrate the systems so that these systems work as one system. A process is a framework which contains all of the business activities in an enterprise, and has a lot of information which is needed for measuring performance. A process consists of activities, and an activity contains events which can be considered information sources. In most cases, it is very valuable to determine if a process is meaningful, but it is difficult because of the complexity in measuring performance, and also because finding relationships between business factors and events is not a simple problem. So it would reduce operation cost and allow efficient process execution if I could evaluate the process before it ends. In this paper we propose an event based process measurement model. First, we propose the concept of process performance measurement, and a model for selecting process and activity indexes from the events which are collected from information systems. Second, we propose at methodologies and data schema that can store and manage the selected process indexes, the mapping methods between indexes and events. Finally, we propose a process Performance measurement model using the collected events which gives users a valuable managerial information.

• Journal of Digital Convergence
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• v.16 no.11
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• pp.553-560
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• 2018

The purpose of this study is to investigate whether the job engagement mediates relationship between positive psychological capital and turnover intention in the event worker. For it, a questionnaire survey is performed for 394 participants consisted of male and female living in BUSAN. Their age is from 20 to 50. Afterwards, the collected data is analyzed using the regression analysis. Positive psychological capital is significantly positive to the job engagement. Meanwhile, positive psychological capital is significantly negative to the turnover intention. Likewise, job engagement is significantly negative to the level of turnover intention. Also, job engagement partially mediated relationship between positive psychological capital and turnover intention. Therefore, this study suggests that it will be developed the mediation program that improves both work environment and positive psychological capital to increase job engagement as well as reduce turnover intention in the event worker.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.17 no.6
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• pp.173-184
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• 2018

As the portable traffic information collection system using probe vehicles spreads, it is becoming possible to collect road hazard information such as portholes, falling objects, and road surface freezing using in-vehicle sensors in addition to existing traffic information. In this study, we developed a integration and decision algorithm that integrates time and space in real time when multiple probe vehicles detect events such as road hazard information based on GPS coordinates. The core function of the algorithm is to determine whether the road hazard information generated at a specific point is the same point from the result of detecting multiple GPS probes with different GPS coordinates, Generating the data, (3) continuously determining whether the generated event data is valid, and (4) ending the event when the road hazard situation ends. For this purpose, the road risk information collected by the probe vehicle was processed in real time to achieve the conditional probability, and the validity of the event was verified by continuously updating the road risk information collected by the probe vehicle. It is considered that the developed hybrid processing algorithm can be applied to probe-based traffic information collection and event information processing such as C-ITS and autonomous driving car in the future.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2015.05a
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• pp.215-221
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• 2015

본 연구는 대표적인 지식기반산업인 생명의료산업클러스터인 첨단의료복합단지 조성정책의 형성과정을 분석하고자 한다. 첨단의료복합단지는 미래첨단산업육성정책, 국가산업진흥정책 그리고 지역균형발전정책이 첨예하게 대립했던 첨단의료산업 발전정책과 그 산물로서 2005년부터 시작한 첨단의료복합단지의 건립과정에 대한 경과를 분석하여 그 과정, 절차 그리고 결과를 분석해 보고자 한다. 첨단의료복합단지를 둘러싼 정책형성과정에 대한 분석은 단지 하나의 이벤트나 사건으로 머물지 않고 우리나라의 미래첨단산업정책, 국가신성장동력육성정책, 및 지역균형발전정책 등과 밀접히 관련되어 있다는 데 그 의의를 두고자 한다. 분석결과 첨단 의료산업분야의 정책형성 과정은 여러 정책행위자들이 간여하였다. 특히 해당 정책형성과정은 경제발전과정에서 보여준 한국 산업정책 고유특성이 반영된 합리적 행위자로서의 정부역할이 강하게 나타났다. 아울러 분석결과 다양한 정책행위자의 역동적인 역할이 정책형성의 여러 지점에 반영되었다는 점을 조명하였다.

• Journal of Digital Convergence
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• v.15 no.5
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• pp.431-442
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• 2017

The purpose of this study was to investigate the relations among amateur tennis tournament through Sponsorship, brand knowledge and purchase intention. The results drawn through study, First, event contribution, event improve sub-factors of sponsorship of amateur tennis tournament, were indicated positively influential on its brand awareness. Second, communication, event contribution sub-factors of sponsorship of amateur tennis were indicated positively influential on its brand attitude. Third, event contribution, event improve sub-factors of sponsorship of amateur tennis tournament, were indicated positively influential on its brand image Fourth, brand knowledge was found to have a positive effect on repurchase intention.