• Title/Summary/Keyword: SmartThings

검색결과 938건 처리시간 0.034초

Towards Open Interfaces of Smart IoT Cloud Services

  • Kim, Kyoung-Sook;Ogawa, Hirotaka
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2016년도 춘계학술대회
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    • pp.235-238
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    • 2016
  • With the vision of Internet of Things (IoT), physical world itself is becoming a connected information system on the Internet and cyber world is computing as a physical act to sense and respond to real-world events collaboratively. The systems that tightly interlink the cyber and physical worlds are often referred to as Smart Systems or Cyber-Physical Systems. Smart IoT Clouds aim to provide a cyber-physical infrastructure for utility (pay-as-you-go) computing to easily and rapidly build, modify and provision auto-scale smart systems that continuously monitor and collect data about real-world events and automatically control their environment. Developing specifications for service interoperability is critical to enable to achieve this vision. In this paper, we bring an issue to extend Open Cloud Computing Interface for uniform, interoperable interfaces for Smart IoT Cloud Services to access services and build a smart system through orchestrating the cloud services.

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A Distributed Coexistence Mitigation Scheme for IoT-Based Smart Medical Systems

  • Kim, BeomSeok
    • Journal of Information Processing Systems
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    • 제13권6호
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    • pp.1602-1612
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    • 2017
  • Since rapidly disseminating of Internet of Things (IoT) as the new communication paradigm, a number of studies for various applications is being carried out. Especially, interest in the smart medical system is rising. In the smart medical system, a number of medical devices are distributed in popular area such as station and medical center, and this high density of medical device distribution can cause serious performance degradation of communication, referred to as the coexistence problem. When coexistence problem occurs in smart medical system, reliable transmitting of patient's biological information may not be guaranteed and patient's life can be jeopardized. Therefore, coexistence problem in smart medical system should be resolved. In this paper, we propose a distributed coexistence mitigation scheme for IoT-based smart medical system which can dynamically avoid interference in coexistence situation and can guarantee reliable communication. To evaluate the performance of the proposed scheme, we perform extensive simulations by comparing with IEEE 802.15.4 MAC protocol which is a traditional low-power communication technology.

스마트공항과 차세대 보안검색 기술 (Smart Airport and Next Generation Security Screening Technology)

  • 홍진우;오정훈;이한규
    • 전자통신동향분석
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    • 제34권2호
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    • pp.73-82
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    • 2019
  • Airport is shifted airport 1.0 to airport 4.0 called smart airport and services paradigm is changed into direction to point the customer targeted benefits. Smart airports make use of integrated Internet of Things components to provide added-value services. By integrating smart components, airports are being exposed to a larger attack surface and new attack vectors. Self-services such as web or mobile check-in, self check-in/tagging/back drop/boarding, etc. should be strengthened to make airport processes smarter, and technologies such as automatic immigration, smart security search, and automatic AI-based baggage search should be applied. In this paper, we describe the necessity and importance of smart airports and next generation security screening technology. Further, we describe a walk through-type smart security screening system.

IoT Device Classification According to Context-aware Using Multi-classification Model

  • Zhang, Xu;Ryu, Shinhye;Kim, Sangwook
    • 한국멀티미디어학회논문지
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    • 제23권3호
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    • pp.447-459
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    • 2020
  • The Internet of Things(IoT) paradigm is flourishing strenuously for the last two decades. Researchers around the globe have their dreams to transmute every real-world object to the virtual object. Consequently, IoT devices are escalating exponentially. The abrupt evolution of these IoT devices has caused a major challenge i.e. object classification. In order to classify devices comprehensively and accurately, this paper proposes a context-aware based multi-classification model for devices, which classifies the smart devices according to people's contexts. However, the classification features of contextual data of different contexts are difficult to extract. The deep learning algorithm has the capability to solve this problem. This paper proposes a context-aware based multi-classification model of devices, which classifies the smart devices according to people's contexts.

Design of Lightweight JavaScript Software Platform for the Internet of Things

  • Lee, Wonjun;Na, Yeoul;Kim, Seon Wook
    • IEIE Transactions on Smart Processing and Computing
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    • 제3권6호
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    • pp.393-396
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    • 2014
  • Recently, the internet of things (IoT) has become increasingly attractive in many areas to realize smart worlds. JavaScript has become prevalent for IoT programming because of its familiarity with web programmers. On the other hand, JavaScript does not allow the direct control of IoT hardware due to its language limitation. This paper proposes the IoT software platform for JavaScript programming to resolve the limitation. For proof of concept, the platform based on SpiderMonkey and Raspberry Pi was implemented.

Logical Activity Recognition Model for Smart Home Environment

  • Choi, Jung-In;Lim, Sung-Ju;Yong, Hwan-Seung
    • 한국컴퓨터정보학회논문지
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    • 제20권9호
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    • pp.67-72
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    • 2015
  • Recently, studies that interact with human and things through motion recognition are increasing due to the expansion of IoT(Internet of Things). This paper proposed the system that recognizes the user's logical activity in home environment by attaching some sensors to various objects. We employ Arduino sensors and appreciate the logical activity by using the physical activitymodel that we processed in the previous researches. In this System, we can cognize the activities such as watching TV, listening music, talking, eating, cooking, sleeping and using computer. After we produce experimental data through setting virtual scenario, then the average result of recognition rate was 95% but depending on experiment sensor situation and physical activity errors the consequence could be changed. To provide the recognized results to user, we visualized diverse graphs.

Implementation of IoT-based Automatic Inventory Management System

  • Choi, Eun-Soo;Kang, Min-Soo;Jung, Yong Gyu;Paik, Jean Kyung
    • International Journal of Advanced Culture Technology
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    • 제5권1호
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    • pp.70-75
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    • 2017
  • Recent development of IT industry including smart phones and communication technologies has resulted in rapid growth of Internet of Things (IoT) technology and relevant markets. The access to IoT is becoming easier thanks to the boards and IoT products, such as Arduino and Raspberry Pi. Large-scale business sites use IoT technology to manage inventories, but small-scale business sites do not. In the present study, We ported Linux-based Raspbian to Raspberry Pi, It utilizes web server communication to control the Arduino through the application We used a color sensor to figure out the kind of inventory. We also built a database using MySQL to store the data. We used raspberry pi to check whether the proposed system works and apply it to small-scale business.

사물 인터넷 환경에 적합한 커뮤니티 질의 응답 시스템 개발 (Development of Community Question Answering System suitable for Internet of Things Environment)

  • 김강섭;이호준
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2015년도 춘계학술발표대회
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    • pp.1005-1007
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    • 2015
  • 사물 인터넷(Internet of Things)의 확산으로 가까운 미래에는 사물 인터넷 환경에서 질의 응답 시스템이 활발하게 이용될 것으로 예상된다. 본 논문에서는 사물 인터넷 환경에 적합한 초소형, 저사양 하드웨어를 이용하여 커뮤니티 질의 응답 시스템(Community Question Answering System)을 구축하는 방안에 대해 살펴본다. 하드웨어는 700Mhz 싱글 코어 CPU와 512MB의 메인 메모리를 장착한 라즈베리 파이를 이용하였고, 질의 응답 시스템으로는 Apache Solr를 기본 시스템으로 활용하였다. 성능 분석 결과 실시간 응답성은 매우 훌륭하지만 정확도는 앞으로 보완이 필요한 것으로 분석되었다.

대규모 디바이스의 자율제어를 위한 EdgeCPS 기술 동향 (EdgeCPS Technology Trend for Massive Autonomous Things)

  • 전인걸;강성주;나갑주
    • 전자통신동향분석
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    • 제37권1호
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    • pp.32-41
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    • 2022
  • With the development of computing technology, the convergence of ICT with existing traditional industries is being attempted. In particular, with the recent advent of 5G, connectivity with numerous AuT (autonomous Things) in the real world as well as simple mobile terminals has increased. As more devices are deployed in the real world, the need for technology for devices to learn and act autonomously to communicate with humans has begun to emerge. This article introduces "Device to the Edge," a new computing paradigm that enables various devices in smart spaces (e.g., factories, metaverse, shipyards, and city centers) to perform ultra-reliable, low-latency and high-speed processing regardless of the limitations of capability and performance. The proposed technology, referred to as EdgeCPS, can link devices to augmented virtual resources of edge servers to support complex artificial intelligence tasks and ultra-proximity services from low-specification/low-resource devices to high-performance devices.

A Comparative Study and Analysis of LoRaWAN Performance in NS3

  • Arshad Farhad;Jae-Young Pyun
    • 스마트미디어저널
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    • 제13권1호
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    • pp.45-51
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    • 2024
  • Long Range Wide Area Network (LoRaWAN) is a widely adopted Internet of Things (IoT) protocol due to its high range and lower energy consumption. LoRaWAN utilizes Adaptive Data Rate (ADR) for efficient resource (e.g., spreading factor and transmission power) management. The ADR manages these two resource parameters on the network server side and end device side. This paper focuses on analyzing the ADR and Gaussian ADR performance of LoRaWAN. We have performed NS3 simulation under a static scenario by varying the antenna height. The simulation results showed that antenna height has a significant impact on the packet delivery ratio. Higher antenna height (e.g., 50 m) has shown an improved packet success ratio when compared with lower antenna height (e.g., 10 m) in static and mobility scenarios. Based on the results, it is suggested to use the antenna at higher allevation for successful packet delivery.