• 제목/요약/키워드: S-SMART system

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A Case Study of Smart Node System by using 3D Printing Technology (3D 프린팅을 활용한 스마트노드 시스템의 적용 사례)

  • Na, Sangho;Lee, JangHyun;Park, YoungMi;Kim, SungJin
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 한국건축시공학회 2021년도 봄 학술논문 발표대회
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    • pp.6-7
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    • 2021
  • 3D printing has the unique advantage of the ability to customize freeform products even in small quantities. It was recently applied successfully in the node connection system for the irregular shaped glass design of Gwanggyo Galleria Department Store. This was achieved by applying 3D printing technology for an innovative smart node design. The novel system offers flexibility to address various design challenges in addition to maximizing construction quality and reducing construction period. In this paper, we aim to examine the use of 3D printing based innovative technologies in the construction industry. With this aim in mind, we present the case of the Gwanggyo Galleria Department Store's smart nodes. The key objective of this study is creating awareness in the construction industry of the need to utilize fourth industrial revolution technology in architecture.

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Smart Device Based Localization for Ship Block Logistics

  • Song, Kwon-Soo;Lee, Sangdon;Cho, Doo-Yeoun
    • Journal of Korea Multimedia Society
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    • 제15권12호
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    • pp.1506-1516
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    • 2012
  • In a ship block logistics application, acquisition of locations is required in order to identify location of the ship blocks. A Smart device equipped with a GPS sensor can be used as a mobile client for a ship block logistics application. However the precision of GPS components on a commercial smart device is not high enough. Therefore, using the GPS for localization may produce significant positioning errors in a ship block logistics system. This paper proposes a method to reduce errors in measuring locations using a smart device. Based on the knowledge of how the location information is used in a ship block logistics application, and the predictability of the client's moving line based on geographical layout of a shipyard area, our proposed technique enables a better prediction of the ship blocks location. Performance evaluation shows that the proposed technique can significantly reduce the positional error.

Development of Energy Efficient Smart Module with Variable Direction of Heat Flow, Heat Capacity and Surface Absorptivity (Thermo-Diode식 태양열 이용 모듈(Smart Module)개발)

  • Lee, K.J.;Chun, W.G.
    • Solar Energy
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    • 제18권3호
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    • pp.119-128
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    • 1998
  • This study has been carried out to develop a thermo-diode system capable of adjusting heat flow direction, solar absorptivity and thermal capacity. What we call "Smart Module" here has emerged from a series of repeated processes involving design, construction and test. In all, it is found that liquid thermo-diode systems are viable in harnessing the sun's energy. The module can be applied for space heating in winter and reduce the cooling load of buildings in summer.

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A Study on Location Supporting System for Smart Home (Smart Home을 위한 위치 정보 지원 시스템에 관한 연구)

  • Lee Sangbin;Han Kyuho;Lim Kyungsu;Ahn Sunshin
    • Proceedings of the Korean Information Science Society Conference
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    • 한국정보과학회 2005년도 한국컴퓨터종합학술대회 논문집 Vol.32 No.1 (A)
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    • pp.610-612
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    • 2005
  • Ubiquitous Computing 시대가 도래 하면서 집이나 빌딩 같은 실내 환경에서도 Ubiquitous Computing을 도입하려는 여러 연구가 진행되고 있다. 특히 Smart Home은 집 안에 여러 종류의 센서를 설치하여 센서로부터 얻는 정보를 바탕으로 사용자에게 다양한 서비스를 제공한다. 이와 같은 Smart Home을 구현하기 위해서는 사용자나 물체의 위치 정보가 매우 중요하다. 본 논문에서는 Smart Home에서 위치 정보를 지원하기 위해 초음파와 IEEE 802.15.4 기반의 센서 시스템을 제안한다. 이 시스템에서는 초음파를 사용함으로써 생기는 문제와 센서의 효율적인 에너지 관리를 위해 IEEE 802.15.4를 적용하였다. 이 시스템은 초음파 송신부를 가지고 있는 S-node 와 수신부를 가지고 있는 R-node 로 구성되어 있으며 본문에서 각각의 구조와 알고리즘에 대해 기술할 것이다.

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A Study on Tools for Agent System Development (음주측정 스마트키)

  • Choi, Kang-Hyeon;Yu, Jong-Won;Yu, Kang-Hyeon;Joo, Dong-Chul;Park, Hyun Joo;Park, Dae Woo
    • Annual Conference of KIPS
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    • 한국정보처리학회 2019년도 추계학술발표대회
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    • pp.172-175
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    • 2019
  • South Korea's per capita alcohol consumption ranking is 14th in the world, but it ranks first in the world for binge drinking. In society, dining and dining culture is developed, which leads to drinking. He often puts his hands on the wheel in a relaxed way after drinking. To prevent this situation from happening in advance, a Bluetooth module is installed in the aduino circuit to transmit the measured alcohol level to the smartphone and measure the blood alcohol level.

A Study on Implementation of the Push System Based on FCM Service Inducing Communication of Candidates and Influence on Voters: Using Smart Devices Application (FCM 서비스를 이용한 후보자 소통 유도 푸시 시스템의 구현과 유권자에게 미치는 영향에 관한 연구 : 스마트 디바이스 어플리케이션을 활용하여)

  • Lee, Seungwon;Lee, Ook
    • Journal of the Korea Academia-Industrial cooperation Society
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    • 제18권9호
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    • pp.454-463
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    • 2017
  • Advancement of science and technology have led to development of the media, which has evolved election campaign strategies. Nowadays, media development has made communication more important, and it is a growing trend where smart-device applications are widely used to facilitate communication with electors. Based on Google's Fire base Cloud Messaging (FCM) push service, which keeps up with the fast-changing election trends and supports election campaigns systematically, this research aims to help accomplish the goals of an election campaign by developing an information system and performing empirical analysis of the variables that the information system affects. The system consists of an elector's application and a management system. The management system includes browsing and management of received-and sent-message history, and direct management of the application. By managing the push system in more progressive ways, this system will help to improve the effectiveness of election campaigns and accomplish election goals.

Smart Passive System Based on MR Damper (MR댐퍼 기반의 스마트 수동제어 시스템)

  • Cho, Sang-Won;Jo, Ji-Seong;Kim, Chun-Ho;Lee, In-Won
    • Journal of the Earthquake Engineering Society of Korea
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    • 제9권1호통권41호
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    • pp.51-59
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    • 2005
  • Magnetorheological(MR) dampers are one of the most promising semi active control devices, because they have advantages such as small power requirement, reliability, and low price to manufacture. To reduce the responses of structures with MR dampers, a control system including power supply, controller, and sensors is required. However, when a mount of MR dampers are used to a large?scale civil structure such as cable stayed bridges, the control system becomes complex. Therefore, it is not easy to install and maintain the MR damper based control system. To resolve above difficulties, This paper proposes a smart passive system that consists of a MR damper and an electromagnetic induction(EMI) system. According to the Faraday’s law of induction, EMI system that is attached to the MR damper produces electric energy. The produced energy is supplied to the MR damper. Thus, the MR damper with EMI system does not require any power at all. Furthermore, the induced electric energy is proportional to external loads like earthquakes, which means the MR damper with EMI system is adaptable to external loads without any controller and corresponding sensors. Therefore, it is easy to build up and maintain the proposed smart passive system.

The Design of Hybrid Cryptosystem for Smart Card (스마트카드용 Hybrid 암호시스템 설계)

  • Song, Je-Ho;Lee, Woo-Choun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • 제12권5호
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    • pp.2322-2326
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    • 2011
  • General cryptosystem uses differently the data and key value for the increment of security level, processes the repetition of limited number and increases the periodic feature of LFSR similar infinite series. So, it cause the efficiency of the cryptosystem. In this thesis, proposed algorithm is composed of reformat, permutation, data cipher block and key scheduler which is applied the new function by mixed symmetric cryptography and asymmetric cryptography. We design the cryptosystem of smart card using the common Synopsys and simulate by ALTERA MAX+PLUS II at 40MHz. Consequently, we confirm the 52% increment of processing rate and the security level of 16 rounds.

User Motion Recognition Healthcare System Using Smart-Band (스마트밴드를 이용한 사용자 모션인식 헬스 케어 시스템 구현)

  • Park, Jin-Tae;Hwang, Hyun-Seo;Yun, Jun-Soo;Park, Gyung-Soo;Moon, Il-Young
    • Journal of Advanced Navigation Technology
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    • 제18권6호
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    • pp.619-624
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    • 2014
  • Nowadays there are various smart devices and development with the development of smart phones and that can be attached to the human body wearable computing device has been in the spotlight. In this paper, we proceeded developing wearable devices in watch type which can detect user's movement and developing a system which connects the wearable devices to smart TVs, or smart phones so that users can save and manage their physical information in those devices. Health care wearable devices already existing save information by connecting their systems to smart phones. And, smart TV health applications usually include motion detecting systems using cameras. However, there is a limit when connecting smart phone systems to different devices from various companies. Also, in case of smart TV, because some devices may not have cameras, there can be a limit for users who wants to connect their devices to smart TVs. Wearable device and user information collected by using the smart phone and when it is possible to exercise and manage anywhere. This information can also be confirmed by the smart TV applications. By using this system will be able to take advantage of the study of the behavior of the future work of the user more accurately be measured in recognition technology and other devices.

Comparative Analysis of ViSCa Platform-based Mobile Payment Service with other Cases (스마트카드 가상화(ViSCa) 플랫폼 기반 모바일 결제 서비스 제안 및 타 사례와의 비교분석)

  • Lee, June-Yeop;Lee, Kyoung-Jun
    • Journal of Intelligence and Information Systems
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    • 제20권2호
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    • pp.163-178
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    • 2014
  • Following research proposes "Virtualization of Smart Cards (ViSCa)" which is a security system that aims to provide a multi-device platform for the deployment of services that require a strong security protocol, both for the access & authentication and execution of its applications and focuses on analyzing Virtualization of Smart Cards (ViSCa) platform-based mobile payment service by comparing with other similar cases. At the present day, the appearance of new ICT, the diffusion of new user devices (such as smartphones, tablet PC, and so on) and the growth of internet penetration rate are creating many world-shaking services yet in the most of these applications' private information has to be shared, which means that security breaches and illegal access to that information are real threats that have to be solved. Also mobile payment service is, one of the innovative services, has same issues which are real threats for users because mobile payment service sometimes requires user identification, an authentication procedure and confidential data sharing. Thus, an extra layer of security is needed in their communication and execution protocols. The Virtualization of Smart Cards (ViSCa), concept is a holistic approach and centralized management for a security system that pursues to provide a ubiquitous multi-device platform for the arrangement of mobile payment services that demand a powerful security protocol, both for the access & authentication and execution of its applications. In this sense, Virtualization of Smart Cards (ViSCa) offers full interoperability and full access from any user device without any loss of security. The concept prevents possible attacks by third parties, guaranteeing the confidentiality of personal data, bank accounts or private financial information. The Virtualization of Smart Cards (ViSCa) concept is split in two different phases: the execution of the user authentication protocol on the user device and the cloud architecture that executes the secure application. Thus, the secure service access is guaranteed at anytime, anywhere and through any device supporting previously required security mechanisms. The security level is improved by using virtualization technology in the cloud. This virtualization technology is used terminal virtualization to virtualize smart card hardware and thrive to manage virtualized smart cards as a whole, through mobile cloud technology in Virtualization of Smart Cards (ViSCa) platform-based mobile payment service. This entire process is referred to as Smart Card as a Service (SCaaS). Virtualization of Smart Cards (ViSCa) platform-based mobile payment service virtualizes smart card, which is used as payment mean, and loads it in to the mobile cloud. Authentication takes place through application and helps log on to mobile cloud and chooses one of virtualized smart card as a payment method. To decide the scope of the research, which is comparing Virtualization of Smart Cards (ViSCa) platform-based mobile payment service with other similar cases, we categorized the prior researches' mobile payment service groups into distinct feature and service type. Both groups store credit card's data in the mobile device and settle the payment process at the offline market. By the location where the electronic financial transaction information (data) is stored, the groups can be categorized into two main service types. First is "App Method" which loads the data in the server connected to the application. Second "Mobile Card Method" stores its data in the Integrated Circuit (IC) chip, which holds financial transaction data, which is inbuilt in the mobile device secure element (SE). Through prior researches on accept factors of mobile payment service and its market environment, we came up with six key factors of comparative analysis which are economic, generality, security, convenience(ease of use), applicability and efficiency. Within the chosen group, we compared and analyzed the selected cases and Virtualization of Smart Cards (ViSCa) platform-based mobile payment service.