• Journal of the Institute of Electronics Engineers of Korea CI
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• v.49 no.2
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• pp.75-82
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• 2012

In order to enable network robots to effectively collaborate with smart environments, it is crucial that various types of heterogeneous device platforms can communicate each other in flexible and efficient manners. Most of existing software platforms for network robots adopted general-purpose middlewares such as CORBA, which are not suitable to the communication between robots and smart environments due to their heavy size and complexity. Moreover, they do not provide network robot-specific features. Therefore, we propose a new TCP-based Remote Method Invocation framework. We devide the middleware into two layers i. e. transport layers and rmi layers and provide key features to each layer so that network robots can effectively communicate with various devices in smart environments.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10b
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• pp.436-438
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• 2003

상황인식은 사용자에 적응된 컴퓨팅 환경 및 서비스를 가능하게 한다. 상황인식이 추가된 홈 환경은 인간의 주거생활의 편리성을 향상시킨다. 상황인식을 지원하는 스마트 홈 환경은 상황데이터의 수집, 가공, 처리, 저장등의 기본적인 요구 뿐만 아니라 보안. 상황추론, 능동결정 등 복잡한 요구사항을 가진다. 그러므로, 홈 환경이 이러한 요구사항들을 지원하기 위해서는 특별한 미들웨어 구조가 필요하다. 본 논문에서는 스마트 홈 환경에서 상황인식 서비스를 지원하기 위한 능동 미들웨어 구조를 제안한다. 그리고 제안된 미들웨어를 적용한 시나리오를 설명한다.

• 한국정보통신설비학회:학술대회논문집
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• 2009.08a
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• pp.251-252
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• 2009

In smart cold chain, environment monitoring (for example temperature, humidity, and etc) is an important. Especially, because monitoring may be broken on passage, in order to success of cold chain management, it is important that seamless monitoring. To solve this problem, we implement mobile gateway supporting RFID and demonstrate using of RFID middleware emulator.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.10a
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• pp.116-118
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• 2018

This paper introduces oneM2M global IoT standard middleware platform based smart city service data model support and FIWARENGSI interworking for Orion Broker. Also, service data models implementation using flexContainer resource types and FIWARENGSI interworking using the Interworking Framework (TS-0033) from oneM2M Release 3 are also illustrated. In this system, data model element level access (e.g. for subscription/notification feature) is enabled, which is enhancement compared to contentInstance resource type before, and service agnostic FIWARE NGSI interworking is provided over the Interworking Framework for smart city platform data interworking.

• Journal of Korea Society of Digital Industry and Information Management
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• v.15 no.3
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• pp.1-14
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• 2019

The 4th Industrial Revolution, intelligent automobile application technology is evolving beyond the limit of the mobile device to a variety of application software and multi-media collective technology with big data-based AI(artificial intelligence) technology. with the recent commercialization of 5G mobile communication service, artificial intelligent automobile technology, which is a fusion of automobile and IT technology, is evolving into more intelligent automobile service technology, and each multimedia platform service and application developed in such distributed environment is being developed Accordingly, application software technology developed with a single system SoC of a portable terminal device through various service technologies is absolutely required. In this paper, smart device design for ontology design of intelligent automobile open platform enables to design intelligent automobile middleware software design technology such as Android based SVC Codec and real time video and graphics processing that is not expressed in single ASIC application software technology as SoC based application designWe have experimented in smart device environment through researches, and newly designed service functions of various terminal devices provided as open platforms and application solutions in SoC environment and applied standardized interface analysis technique and proved this experiment.

• Smart Media Journal
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• v.9 no.3
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• pp.116-121
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• 2020

Digital Information Display and KIOSK have a problem that initial introduction cost and maintenance cost due to the development cost of dedicated contents and installation cost are high due to the characteristics of the product. In order to solve these problems, We designed and implemented of voice transmission system using Open Source Hardware and Event based Non-Blocking I/O Algorithm.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.1067-1070
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• 2009

It is important to control environment information such as temperature in distribution & logistics systems. To manage temperature and environment information in realtime, SCCM(Smart Cold Chain Management) system must manage and integrate tags and various types sensor information. But, it needs standard code system to manage and integrate various types tags and sonsors. In this paper, we propose standard code system to apply the SCCM system.

• Journal of IKEEE
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• v.18 no.1
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• pp.140-145
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• 2014

OPC UA(IEC62541) is a communication protocol for SG(Smart Grid) application platform. It was standardized by IEC TC57 group in December 2012. The IEC61850 has been used in Digital Substation Systems and Smart Distributed Systems. The DNP3.0 has been used for device's data collection/control in Distributed Systems. The DLMS/COSEM has been used to control metering and collect information in the Smart Metering. The top-level SG management platform needs an independent middleware to manage transparently the Power Information Technology, including the IEC61850, DNP3.0, DLMS/COSEM. In this paper, we propose the SDG(Scada Data Gateway) platform. It manages Power Information Technology based Digital Substation Systems and Smart Distributed systems, Smart Metering through OPC UA.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.16 no.5
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• pp.256-264
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• 2023

Smart farm technology using IoT is one of the technologies that can increase productivity and improve the quality of agricultural products in agriculture, which is facing difficulties due to the decline in rural population, lack of rural manpower due to aging, and increase in diseases and pests due to climate change. . Smart farms using existing IoT simply monitor farms, implement smart plant growers, and have automatic greenhouse opening and closing systems. This paper implements a smart farm system based on MQTT, an industry standard protocol for the Internet of Things, and Node-RED, a representative development middleware for the Internet of Things. First, data is extracted from Arduino sensors, and data is collected and transmitted from IoT devices using the MQTT protocol. Then, Node-RED is used to process MQTT messages and store the sensing data in real time in MongoDB, a representative NoSQL, to store the data. Through this smart farm system, farm managers can use a computer or mobile phone to check sensing information on the smart farm in real time, anytime, anywhere, without restrictions on time and space.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.6
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• pp.85-91
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• 2014

Nowadays, Dynamic lighting control and management skills are studied and used. If the system which is to manage multiple intelligent spot applied ubiquitous service technology is built with decision making and used in the complex intelligent space like a apartment then will improve energy efficiency and provide comfortability in optimal conditions. To solve this problem distributed autonomous control middleware and energy management system which process data gathering by zigbee mesh network and search proper services to save energy by the existing state of things is necessary. In paper we designed DDLEMS (Distributed Dynamic Lighting Energy Management System) that is to service duplex communication embedded by software based home server platform to provide mobile services in the smart place and support decision making about energy saving to the best use of wireless censor node and controled network, energy display devices.