• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.950-953
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• 2013

본 논문은 헬스케어 서비스에 대한 소비자 인식의 변화에 따라 최근 대두되고 있는 웰니스 서비스에 관한 연구이다. 현재 많은 소비자들이 여러 가지의 홈 헬스케어 개인건강기기를 통해 자신의 건강을 관리하고 있지만 제조사 별 고유의 소프트웨어와 통신 프로토콜을 내장되어있어 개인건강기기마다 각기 다른 방식의 서비스가 제공되고 있다. 이처럼 현재 제공되고 있는 헬스케어 서비스를 보다 효율적으로 제공하기 위해서는 다양한 개인건강기기와 서비스 제공 시스템간의 표준화된 인터페이스를 지원하기 위해서는 통합 게이트웨이 솔루션이 필요하다. 특히, 각 시스템 구성요소 간에 IEEE11073 PHD(Pelsonal Health Devices), HL7(Health Level Seven) 등의 표준을 통하여 건강정보 데이터 센싱, 취합 및 전송, 분석 및 피드백이 표준적인 방법으로 운용되어야한다. 이에 본 논문에서는 스마트 TV 환경에서 ISO/IEEE11073 표준을 준용하여 다양한 통신 인터페이스를 통한 개인건강기기의 연결성을 지원하는 통합 게이트웨이 솔루션 및 헬스케어, 건강관리와 관련된 서비스를 위한 건강정보 모니터링 앱을 설계하였다.

• The KIPS Transactions:PartA
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• v.11A no.2
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• pp.181-188
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• 2004

Recently most of the study about home-networking middleware take the way of web-control through the internet. Although the way of control using wire and PDA also be taken, but does not use standard techniques like UPnP and is limited in the technique controlling simple device. This paper is about the development of a Voice Gateway controlling many kinds of UPnP controlling devices connected to network. voice gateway is consisted of MPC850 module and phone interface and the set-top box, a part of computer in voice gateway is consisted of PSTN interface, information controlling process and the process of UPnP protocol. And I tried to implement this through entire system board.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.06a
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• pp.695-698
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• 2007

The control of electrical appliances residing in the home network can be accomplished via Internet with the UPnP expansion without modifying an existing UPnP. In this paper, we propose the Internet Gateway that consists of an UPnP IGD(Internet Gateway Device) DCP(Device Control Protocol) and an UPnP Bridge as a system to control electrical appliances of home network. UPnP IGD DCP is to enable the configurable initiation and sharing of Internet connections as well as assuring advanced connection-management features and management of host configuration service. It also supports transparent Internet access by non-UPnP-certified devices. UPnP Bridge searches for local home network devices by sending control messages, while control point of UPnP Bridge looks up devices of interest on the Internet, subsequently furnishing the inter-networking controlling among devices which belong to different home network systems. With our approach, devices on one home network can control home electrical appliances on the other hone network via Internet through IGD DCP with control commands of UPnP.

• Journal of the Korea Computer Industry Society
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• v.9 no.1
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• pp.11-20
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• 2008

Home network service, which is a part of Ubiquitous application service provides remote control and monitoring service, other appliance and peristaltic service, security service of appliance is connected to network in the home. <중략> By using gateway which is implemented undertook control of each function and using main server for controlling and monitoring of appliance, implemented system which is able to control the appliance in home from inter/outside is implemented.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.256-259
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• 2016

The growth of mobile devices in Internet of Things (IoT) leads to a number of intelligent buildings related IoT applications. For instance, home automation controlling system uses client system such web apps on smartphone or web service to access the home server by sending control commands. The home server receives the command, then controls for instance the light system. The gateway based RESTful technology responsible for handling clients' requests attests an internet latency in case a large number of clients' requests submit toward the gateway increases. In this paper, we propose the design tasks of the IoT gateway for handling concurrency events. In the procedure of designing tasks, concurrency is best understood by employing multiple levels of abstraction. The way that is eminently to accomplish concurrency is to build an object-oriented environment with support for messages passing between concurrent objects. We also investigate the performance of event-driven architecture for building IoT gateway using node.js on one side and communication protocol based message-oriented middleware known as XMPP to handle communications of intelligent building control devices connected to the gateway through a centralized hub. The Node.JS is 40% faster than the traditional web server side features thread-based approach. The use of Node.js server-side handles a large number of clients' requests, then therefore, reduces delay in performing predefined actions automatically in intelligent building IoT environment.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.11
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• pp.2113-2119
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• 2006

In this paper, we design the r-Sensor protocol for reliable data transmission in the Intelligent Home Service based on the wireless sensor network environment. The r-Sensor protocol improve the reliability of data transmission and node fairness using simple routing algorithm, congestion control, and loss recovery method that minimize the load of relay node. Reposed routing algorithm find out upstream and downstream nodes using the Network Management packet. Meanwhile, loss recovery algorithm uses the Aggregated-Nack. To apply supposed algorithm, the IHS-AMR(Intelligent Home Service - Automatic Meter Reader) and sensor node are designed and implemented in hardware. The IHS-AMR provides remote metering service and also offers home safety service by internetworking with sensor network, mobile phone network and internet.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.2
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• pp.173-178
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• 2019

Recently, the types and amount of data generated, collected, and measured in IoT such as smart home, security, and factory are increasing. The technologies for IoT service include sensor devices to measure desired data, embedded software to control the devices such as signal processing, wireless network protocol to transmit and receive the measured data, and big data and AI-based analysis. In this paper, we focused on developing a gateway for interfacing heterogeneous sensor network protocols that are used in various IoT devices and propose a heterogeneous network interface IoT gateway. We utilized a OpenWrt-based wireless routers and used 6LoWAN stack for IP-based communication via BLE and IEEE 802.15.4 adapters. We developed a software to convert Z-Wave and LoRa packets into IP packet using our Python-based middleware. We expect the IoT gateway to be used as an effective device for collecting IoT big data.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2006.06a
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• pp.431-434
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• 2006

홈네트워크 시스템을 구성하기 위해서는 유무선 네트워크 기술과 미들웨어 기술, 홈게이트웨이 기술 등의 다양한 기술들을 필요로 한다. 이러한 홈네트워크 환경에서 공격에 대한 가능성이 점차 증대할 것이고, 따라서 홈네트워크 보안에 대한 연구 및 개발에 대한 필요성 또한 증대되고 있다. 따라서 본 논문에서는 홈네트워크 보안의 필요성과 이에 저해되는 요소 및 그에 대한 대응책을 기술하고자 한다.

• Annual Conference of KIPS
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• 2005.11a
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• pp.761-764
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• 2005

컨텍스크 기반 미들웨어는 응용 도메인에서 실제 상황을 구현할 수 있다. 전형적으로 실제 위치를 환경에 메핑시킴으로서 실제상황을 가변적으로 변화시킬 수 있다. 또한 실제 위치에 센서와 actuator 를 이용한 서비스의 라이프사이클을 원격지에서도 가변적으로 변경할 수 있다. 이 시스템은 CAMUS[1] 시스템에서 라이프 사이클 관리를 OSGi 기반으로 한 내용을 구현하였다. OSGi 는 홈 네트워크 관련 개방형 시스템 게이트웨이 시스템으로서 OSGi 를 이용함으로써 다양한 유비쿼터스 통신, 가정, 컴퓨터 시스템간의 쉽게 라이프 사이클 관리를 할 수 있는 장점이 있다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2006.05a
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• pp.417-420
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• 2006

UPnP presents home network middleware for local home electrical appliances basedon internet protocols that is available access and control electrical appliances just in local home network. Itis designed to bring easy-to-use, flexible, standards-based connectivity to ad-hoc or unmanaged networks in the home, a small business, public spaces, or attached to the Internet. In this paper, Internet Gateway expands UPnP IGD(Internet Gateway Device) DCP(Device Control protocol) and UPnP IGP Bridge for Internet Home Network Electrical Appliance Control. UPnP IGD DCP is configurable initiation and sharing of internet connections, advanced connection-management features, management of host configuration service, and supports transparent Internet access by non-UPnP-certified devices. UPnP Bridge search for local home network devices by sending control messages. Control Point of UPnP Bridge search for devices of interest on the network and can control or be controlled all of functions by IGD DCP with control commands. Outside client, approach to UPnP IGD DCP, send control messages UPnP Bridge, and invoke each UPnP device. As a result, Electrical Appliance of Home Network base on UPnP, can control and be controlled via the Internet like ones in the one Home Network without modification of existing UPnP.