• 디지털융복합연구
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• 제9권1호
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• pp.153-164
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• 2011

급신장하고 있는 소셜컴퓨팅은 사회 전반에 걸쳐 그 파급력과 영향력을 확대하고 있는데, 최근 정치 분야로도 영역을 넓혀가고 있다. 한편 시민들의 정치적 참여 추세는 '스마트시민정당'이란 혁신적 아이디어를 낳았고, 이는 정당의 개방성과 수용성을 요구하기에 이르렀다. 스마트시민정당은 기존의 ICT(Information Communication Technology)는 물론 소셜컴퓨팅을 기반으로 하는 원활한 소통구조를 요구한다. 즉 스마트시민정당을 구현하기 위해서는 소셜컴퓨팅 환경이 갖추어진 컴퓨팅 프레임워크가 필요한 것이다. 이에 본 연구는 스마트시민정당의 기술적 기반으로서 소셜컴퓨팅 프레임워크를 제안하는 데에 목적이 있다. 이를 위해 본 연구는 제2절에서 소셜웹의 부상, 공공(정치)부문에서의 ICT와 혁신, 소셜컴퓨팅의 개념과 영향 등을 다룰 것이다. 또한 제 3절에서는 문헌 연구와 전문가 심층면담 을 통해 스마트시민정당의 개념과 특성 및 서비스를 살펴본 다음, 이를 지원하기 위한 쇼셜컴퓨팅 프레임워크 구조와 구성요소 및 서비스 기능에 대해 다룰 것이다.

• Smart Structures and Systems
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• 제12권1호
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• pp.23-39
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• 2013

In this article, a smart multifunctional optical system-on-a-chip (SOC) sensor platform is presented and its application for fiber Bragg grating (FBG) sensor interrogation in optical sensor networks is investigated. The smart SOC sensor platform consists of a superluminescent diode as a broadband source, a tunable microelectromechanical system (MEMS) based Fabry-P$\acute{e}$rot filter, photodetectors, and an integrated microcontroller for data acquisition, processing, and communication. Integrated with a wireless sensor network (WSN) module in a compact package, a smart optical sensor node is developed. The smart multifunctional sensor platform has the capability of interrogating different types of optical fiber sensors, including Fabry-P$\acute{e}$rot sensors and Bragg grating sensors. As a case study, the smart optical sensor platform is demonstrated to interrogate multiplexed FBG strain sensors. A time domain signal processing method is used to obtain the Bragg wavelength shift of two FBG strain sensors through sweeping the MEMS tunable Fabry-P$\acute{e}$rot filter. A tuning range of 46 nm and a tuning speed of 10 Hz are achieved. The smart optical sensor platform will open doors to many applications that require high performance optical WSNs.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 1998년도 춘계학술대회논문집; 용평리조트 타워콘도, 21-22 May 1998
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• pp.664-669
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• 1998

This research is concerned with the active vibration controller design for smart structures by a modified LQG controller. The smart structure is defined as the structure equipped with smart actuators and sensors. Various analog and digital control, techniques aimed for the piezoceramic sensors and actuators have been proposed for the active vibration control of smart structures. In this paper, the modified LQG controller is developed for the active vibration suppression of smart structures to implement the predefined decay rate on modal displacements. The proposed modified LQG controller proved its effectiveness by experiments.

• 한국가구학회지
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• 제19권4호
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• pp.283-293
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• 2008

This study is intended to forecast changes in Ubiquitous technology-based residential environment since the digital revolution so as to suggest the direction of furniture design in the near future. Among Ubiquitous technologies, the intelligent digital technology applied to a residential environment is defined as "Smart Digital Technology." Ministry of Commerce, Industry and Energy named the residential environment where such technology is applied "Smart Home." Smart Home is strategically creating intelligent residential environment where interactivity is made between human, furniture and residential environment, based on home automation, home network and intelligent sensor technology. Smart furniture is based on strategic characteristics of smart home. Its convergence with IT equipments is being made. Largely, smart furniture has three characteristics as below: First, smart furniture provides users with information on home management, health management, education and fashion. not just functioning as storage space. Second, smart furniture that is a new lifestyle pattern will suggest a new aesthetic standard based on unsettled shapes and innovative structure. Finally, it gives convenience to users intelligently. Namely, smart furniture, "intelligent informative furniture", will be suggested as a new paradigm.

• 한국산학기술학회논문지
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• 제11권12호
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• pp.4962-4967
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• 2010

스마트 카드는 암호알고리즘의 개발과 더불어 전자상거래 환경이 구축되면서 가치이전의 수단 및 활용분야가 다양하기 때문에 정보 통신망 환경에서 중요한 보안 장치로 수요나 활용면에서 급격한 증가율을 보이고 있다. 따라서 본 논문에서 제안한 스마트 카드용 키 스케쥴러 블록은 다양한 멀티미디어 및 실시간 통신의 암호시스템에 적용할 경우 기존시스템과 호환성이 용이하여 하드웨어 설계와 비도 및 처리속도를 향상시킬 수 있다고 사료된다.

• ETRI Journal
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• 제42권3호
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• pp.366-375
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• 2020

The network traffic prediction of a smart substation is key in strengthening its system security protection. To improve the performance of its traffic prediction, in this paper, we propose an improved gravitational search algorithm (IGSA), then introduce the IGSA into a wavelet neural network (WNN), iteratively optimize the initial connection weighting, scalability factor, and shift factor, and establish a smart substation network traffic prediction model based on the IGSA-WNN. A comparative analysis of the experimental results shows that the performance of the IGSA-WNN-based prediction model further improves the convergence velocity and prediction accuracy, and that the proposed model solves the deficiency issues of the original WNN, such as slow convergence velocity and ease of falling into a locally optimal solution; thus, it is a better smart substation network traffic prediction model.

• 한국산업정보학회논문지
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• 제17권2호
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• pp.11-18
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• 2012

Smart Dynamic Pricing has been introduced to address the under-utilised network resources problem in mobile telecommunications systems. In this paper, we investigate the applicability of Smart Dynamic Pricing and its signalling models into Cognitive Radio Systems. Cognitive Radio System is defined as one in which cognitive radios are employed to access shared spectrum and/or dynamically allocated spectrum. Network elements, protocols, traffic and control channels, and system architecture are proposed for the implementation of Smart Dynamic Pricing in Cognitive Radio System. It is found that Smart Dynamic Pricing and its signalling models can be applied to Cognitive Radio Systems.

• 전기학회논문지P
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• 제52권4호
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• pp.141-147
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• 2003

Security of the electronic commercial transaction especially through the mobile communication network is gaining its significance due to rapid development of information and communication related fields. For that, some kind of cryptographic algorithm is already in use for the smart card. However, the growing needs of handling multimedia and real time communication bring the smart card into more stringent use of its resources. Therefore, we proposed a hybrid cryptosystem of the smart card to facilitate multimedia communication and real time communication.

• 디지털산업정보학회논문지
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• 제8권3호
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• pp.23-31
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• 2012

With the advance of Smart TV technologies, TV watchers can enjoy the Internet and games while watching TV programs. Besides retrieving with some keywords in the Internet, people may want to access local information such as notifications from town, messages from children's schools, shopping information from local marts, and even reminder messages for visiting from hospitals while watching TV without using web-browser. In this paper, we introduce the daily life notification service scenarios and its functional and non-functional requirements. Furthermore, we also propose a system that provides the notification services, consists of smart TV apps and server systems. We also introduce the system architecture and the component design of the system. Our work will help smart TV service developers because this paper will give them some service scenarios, requirements, and system architecture and its component design.

• 한국ITS학회 논문지
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• 제20권5호
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• pp.146-156
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• 2021

스마트시티는 도시의 인구 집중화로 인해 발생하는 문제를 IT 기술을 접목하여 해결하는 지능화된 도시를 뜻하며 안전, 교통, 환경, 교육, 의료 등 다양한 서비스가 제공되고 있으나 거주하는 시민들이 체감하는 서비스의 정도는 제공되는 기술적 성숙도에 비해 낮아 서비스 체감도의 향상이 필요하다. 본 연구에서는 스마트시티 내에 거주하는 시민들이 생활하면서 체감하는 스마트 서비스의 인지도 및 체감도를 향상시키고 서비스를 쉽게 받아들 일수 있는 수용 의도 분석을 위해 이용자 특성과 서비스 특성 변수를 구분하였다. 또한 서비스에 대한 인지 용이성과 인지 유용성의 유대관계 분석 및 시민과 공무원 집단에 대한 조절효과를 분석하여 서비스 수용의도에 영향을 미치는 요소를 확인하였다. 이러한 결과를 바탕으로 시민의 적극적인 참여와 정부 및 민간의 투자를 유도하여 도시의 다양한 문제해결을 통해 시민의 삶의 질 향상과 행복한 사회가 이루어지는 기반이 될 것으로 기대된다.