• 제목/요약/키워드: Service Plug-In

검색결과 86건 처리시간 0.024초

스마트플러그를 위한 서비스 디자인 및 서비스모델 (Service Design and Service Model for Smart Plug)

  • 이희주;윤세환;김용세
    • 한국과학예술포럼
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    • 제19권
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    • pp.561-568
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    • 2015
  • A lot of electrical energy is used in our daily life. While energy saving concerns are overall, consumption practices of people in general are very different. People want to control their energy use and by knowing the amount of energy they use. Smart plug is a new device that measures electricity usage through each plug at an outlet with on/off control. User experience for electrical devices in regards to electricity usage should be newly designed. In this study, based on the survey, personas have been devised and their energy use experience in relation with smart plugs have been designed. Service models have been designed as well. By designing service with smart plug, user could enhance the experience of energy usage and saving and energy consumption practices could be improved in a sustainable manner.

Smart Sensor Management System Supporting Service Plug-In in MQTT-Based IIoT Applications

  • Lee, Young-Ran;Kim, Sung-Ki
    • Journal of Multimedia Information System
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    • 제9권3호
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    • pp.209-218
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    • 2022
  • Industrial IoT applications, including smart factories, require two problem-solving to build data monitoring systems required by services from distributed IoT sensors (smart sensors). One is to overcome proprietary protocols, data formats, and hardware differences and to uniquely identify and connect IoT sensors, and the other is to overcome the problem of changing the server-side data storage structure and sensor data transmission format according to the addition or change of service or IoT sensors. The IEEE 1451.4 standard-based or IPMI specification-based smart sensor technology supports the development of plug-and-play sensors that solve the first problem. However, there is a lack of research that requires a second problem-solving, which requires support for the plug-in of IoT sensors into remote services. To propose a solution for the integration of these two problem-solving, we present a IoT sensor platform, a service system architecture, and a service plugin protocol for the MQTT-based IIoT application environment.

멀티서비스 멀티플러그인 교환 시스템 (Multi-Service Multi-Plug-In Switching System)

  • 이정규;김영부
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 1999년도 하계종합학술대회 논문집
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    • pp.145-148
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    • 1999
  • The ability to rapidly create and deploy new and novel services in response to market demands will be the key factor in determining the success of the future service provider. This goal may be approached from different directions. One of them is an open interface making the functionalities of a network element programmable and usable by outside entities. In this paper, we describe several aspects of this new, hot technical area and introduce related standard activities. In addition, we present a new switching system called MSMP (Multi-Service Multi-Plug-In), which is based on the open programmable interface concept, and describe its architecture and main functionalities of its components.

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뿌리기업 자동화·스마트 공정을 위한 Plug-in 구조의 IOT 미들웨어 구축 방법 (Structure Method for IOT Middle Ware with Plug-in module for Automation & Smart processing of Ppuri Manufacturing Factory)

  • 이정훈;김의룡;김신령;김영곤
    • 한국인터넷방송통신학회논문지
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    • 제19권2호
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    • pp.229-236
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    • 2019
  • 우리나라 산업의 근간인 뿌리기업의 자동화 스마트 공정상 IOT 미들웨어는 사물인터넷 기기(센서 등)의 데이터 정보를 해석하고 관리하며 제어할 수 있는 중추적 역할이 요구된다. 특히 뿌리산업은 산업별 공정 흐름이 상이하고 기업별 데이터 처리요구도 다양해 이를 수용하기 위한 범용 IOT 미들웨어가 필요한 상황이다. 본 논문이 제시한 IOT 미들웨어 구조는 그에 대한 해결책으로 통신, 데이터 수집과 처리, 서비스 연계 등 미들웨어 기본 프로세스는 엔진부로 범용화 시키고 뿌리산업 분야별 사물인터넷 기기와 기업별 처리 요구사항은 개별적으로 대응할 수 있는 Plug-in 구조를 도입함으로서 유연하고 효과적인 뿌리산업 스마트 공정을 제안하였다. 또한 미들웨어 Plug-in과 연계 서비스 계층 간 네트워크 데이터에 대한 암호화를 통해 변조, 탈취 등에 대한 예방과 보안을 강화하는 방안을 제시하였다. 향후 MQTT, COAP, XAMP 등 다양한 네트워크 프로토콜에서 확장 가능할 수 있도록 뿌리산업에 특성화된 IOT 미들웨어 플랫폼으로 발전시킬 시스템을 제안하고자 한다.

지능형 협업환경에서 서비스 발견을 위한 다중 에이전트 시스템 적용 방법 (Multi-agent-based approach for service discovery in smart meeting spaces)

  • 배창혁;한상우;김종원
    • 한국HCI학회:학술대회논문집
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    • 한국HCI학회 2008년도 학술대회 1부
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    • pp.669-673
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    • 2008
  • 지능형 협업환경에서 사용자가 원하는 서비스를 제공받기 위해 선행되어야 할 기술은 사용자가 원하는 협업기능 요구사항에 따라 협업환경 내 서비스들을 적절히 발견하는 서비스 발견(service discovery) 기술이다. 일반적인 서비스 발견과 관련하여, UPnP(universal plug & play) 의 SSDP(simple service discovery protocol)을 비롯한 여러 종류의 서비스 발견 기술이 존재하나, 지능형 협업환경이 요구하는 서비스 발견 특정을 만족시키기에는 일부 제약 사항이 존재한다. 이에 본 논문에서는 지능형 협업환경에서 제공되어야 하는 서비스 발견 기술의 요구사항을 살펴보고, 이를 만족하기 위한 방법으로써 다중 에이전트 시스템 (multi-agent system,, MAS)을 적용한 실용적인 서비스 발견 방법을 제시한다. 또한 지능형 협업환경의 일부 서비스에 제안된 방법을 적용하여, 본 접근방법의 타당성을 구현 결과를 통해 확인하고자 한다.

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홈 네트워크를 위한 QOS 보장형 매체접속제어 프로토콜의 구현 (Implementation of QoS-awared MAC Protocol for Home Networks)

  • 황원주
    • 한국정보통신학회논문지
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    • 제7권2호
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    • pp.228-238
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    • 2003
  • 댁내에 이미 가설된 배선이나 무선을 이용하여 저 비용으로 댁내의 정보가전들을 하나의 망으로 연결할 수 있는 HomePNA, HomePlug 또는 HomeRF가 장래 유망한 홈 네트워크 기술이 될 것으로 전망되고 있다. 그러나 HomePNA와 HomePlug는 우선 순위 기법을 이용하여 Class of Service(CoS)만을 제공하며, HomeRF는 실시간 트래픽중 음성만을 고려하여 설계되었기 때문에 홈 네트워크 상의 주요 트래픽인 오디오나 비디오의 QoS를 보장할 수가 없다. 본 논문에서는 홈 네트워크 상에서 QoS를 보장하기 위한 새로운 매체접속제어(Medium Access Control; MAC) 프로토콜을 제안하고, 제안 프로토콜의 프로토타입 구현과 실험을 통한 성능평가를 수행하였다. 소프트웨어 구현을 통한 실험결과 제안 프로토콜은 각 실시간 트래픽별로 대역폭을 할당함으로써 우수한 전송 지연, 지터 그리고 손실의 특성을 가짐을 알 수 있었다.

비즈니스 모델의 진화: 플러그에서 플랫폼으로 -다원 DNS IoT 기술의 사례- (Evolution of Business Model: From Plug To Platform - Dawon DNS Business Case-)

  • 박민혁;여운남;이정우
    • 한국IT서비스학회지
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    • 제20권5호
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    • pp.105-118
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    • 2021
  • As we enter the era of the 4th industrial revolution, information and communication technologies, including artificial intelligence and big data, are converging throughout society. Especially, as the importance of the social foundation of hyper-connection grows, the social influence of IoT, a network of connecting objects, people, and various entities, is also gradually expanding. In addition, as a pandemic, COVID-19, continues, interests in untact-oriented technology and service development are growing more than ever, and each company is trying to establish a core competency strategy to gain an edge in competition in the changing society. This study is a case study centered on Dawon DNS, a company that provides an IoT-based AI smart plug platform. Dawon DNS is broadening its services while developing products by applying advanced technologies, and this study is aiming to investigate the core competencies of the business evolution process. The obtained result of this study will provide implications for companies to become more competitive by suggesting the attitudes and strategies that startups should have during the transforming business environment.

Closure of patent ductus arteriosus with a vascular plug in a German Shepherd dog

  • Han-Joon Lee;Taehyung Kwon;Gyeonggook Park;Dong-Kwan Lee;Joong-Hyun Song;Kun-Ho Song
    • 한국동물위생학회지
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    • 제47권1호
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    • pp.55-59
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    • 2024
  • A 4-year-old, spayed female German Shepherd dog (GSD) weighing 22.4 kg was referred to Chungnam National University Veterinary Medicine Teaching Hospital with the chief complaint of a cardiac murmur. A continuous murmur was detected at the left basilar region upon auscultation. In the thoracic radiographs, slight bulging of the aorta, the main pulmonary artery, and the left atrium were observed. Echocardiography revealed continuous turbulent flow directed from the main pulmonary artery towards the pulmonary valve and consistently within the main pulmonary artery. Based on all the results, a diagnosis of type II A patent ductus arteriosus (PDA) was made, and plans were established to treat it with transcatheter occlusion. Transcatheter occlusion was performed using a vascular plug and successfully deployed at the PDA. The patient did not exhibit any complications. GSDs are relatively less common compared to small-breed dogs in South Korea. Considering that GSDs are predisposed to PDA, it is crucial to periodically assess the presence of PDA through auscultation and echocardiography, even in the absence of clinical signs. Transcatheter occlusion using a vascular plug can be an option for treatment and can yield favorable outcomes.

USB에 기반한 홈 제어 시스템 개발 (Development of The Home Control System Base on USB)

  • 이창구;김희선
    • 제어로봇시스템학회논문지
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    • 제12권4호
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    • pp.405-410
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    • 2006
  • This paper presents the design of a USB home controller and a home control system that specially is focused on controlling home appliances as a part of home network systems, the implementation of the USB device access class in an OSGi service platform and a home security system as an application. Designed USB home controllers are able to control various home appliances. They can be used not only to control big home appliances like a boiler but also to control small home appliances like a toaster because they are low-cost solutions. The USB home controller supports real time control using the interrupt transfer of the USB specification. And It is easy to use by homemakers who have no technical knowledge of the system because they just plug and unplug it in a home server then it automatically joins and leaves a home control system. This technique is based on hot-plug and the USB Device Access class in an OSGi Service Platform. The USB Device Access class supports the coordination of automatic detection and attachment of the USB home controller on an OSGi Service Platform, and it downloads and installs device drivers on demand. For an application, we implemented and tested a home security system using two USB home controllers and a CDMA module.