• Fire Science and Engineering
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• v.23 no.6
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• pp.75-81
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• 2009

In this paper, USN of wireless communication with easy to install and effectiveness with variety information gathering has been proposed as a alternative of wired-based line for transmission of fire sensing data. But, The sensor node using USN should be considered for wireless transmission range and reliability of information. In this study, the zigbee protocol sensor node was implemented and then tested transmission range of sensor node as 10m interval using voltage information of DC 3V & 5V. Here, maximum transmission distance was confirmed 90m inside-outside. When used mesh routing relay node, distance was not limited. In USN network building, when fire sensing data transmitted, the sensing data same between direct sensing data from sensor and collecting data at USN. Therefore, was confirmed reliability for transmission range and information of proposed zigbee sensor node.

• 한국ITS학회:학술대회논문집
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• 2008.11a
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• pp.301-308
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• 2008

• 프린팅코리아
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• v.11 no.11
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• pp.102-103
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• 2012

'RFID/USN코리아 2012'가 지난 9월 25일부터 27일까지 서울 삼성동 코엑스 홀C에서 개최됐다. 올해로 8회를 맞는 이번 전시회는 '스마트 센싱으로 IT융합 가속화!'라는 주제로 최근 산업전반에 확산하는 IT융합 추세에 맞춰 IT융합의 핵심기반으로서 RFID 및 USN의 중요성을 조명했다.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2006.07a
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• pp.476-476
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• 2006

• Information and Communications Magazine
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• v.24 no.8
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• pp.33-39
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• 2007

USN은 BcN을 포함하는 포괄적인 서비스의 개념으로 정의되어야 하며, USN과 BcN의 연동은 WSN과 BcN의 연동으로 정의되어야 한다. 이에 따라 BcN과 WSN의 연동에 관해 그 구조 및 각 구성 요소의 기능을 기술한다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11a
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• pp.658-660
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• 2005

최근 인터넷의 성장과 CDMA등의 무선 통신의 활성화로 인하여 이동 중인 차량 내에서 다양한 정보를 사용하기 위한 기술이 개발 중이다. 본 논문에서는 차량 단말에 여러가지 텔레매틱스 서비스를 제공하기 위한 차량 단말, 텔레매틱스 서비스 서버, 텔레매틱스 컨텐츠 서버의 3단계 구조를 가지는 텔레매틱스 서비스 시스템을 제안한다. 제안하는 시스템은 차량 단말과 서비스 서버 사이의 통신 방법 및 서비스 서버 내의 서비스 응용이 다양한 컨텐츠를 제공하기 위한 프레임워크를 제공한다.

• Proceedings of the KIEE Conference
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• 2008.04a
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• pp.180-181
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• 2008

Recently, USN applications are in the early stage of commercialization. But, there are still several problems to develop USN applications. It is mainly due to the current development scheme that solution vendors makes all of them including HW, SW, sensor modules. The development of USN applications could be revitalized if three entities such as PC platform developers, PC device vendors, and application developers would do their best as in PC development. In this paper, we suggest an sensor node platform architecture supporting sensor independency to overcome the difficulty of developing USN applications. Traditional platforms like Tiny-OS and Nano-Q+ do not support such sensor independency. At first, we present a unified API for sensor independency, and also suggest an architecture to support sensor independancy. Our architecture results in the revitalization of developing USN applications.

• IEMEK Journal of Embedded Systems and Applications
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• v.1 no.1
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• pp.14-19
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• 2006

Integrated development environment (IDE) plays an important role in reducing the developm ent time, thereby improving software development productivity. In recent years, ubiquitous sensor networks (USNs) have become increasingly popular. However their application software is developed mostly using command-line-based tools. Such a development process is not only likely to be error-prone but also inconvenient to debug errors. This paper describes a novel IDE for USN application developers called Nano Esto that provides a single, consistent, and integrated environment for building and executing USN applications. The Nano Esto helps the developers edit and cross-compile source code and download the executable image to the program memory of sensor nodes with just a few button clicks. It also provides support for configuring an application-specific kernel, simulating a wireless sensor network, and estimating power consumption in each sensor node. Currently, Nano Esto runs on Linux as well as on Windows with the same look and feel.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.141-142
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• 2008

According as USN's application field is magnified, various results are appearing. Efforts to apply this results in life are progressing. In car field, is used in control that level of significance is less. In home network, is used in a household electric appli-ance control and electric lamp control, security etc.. In factory, is used in process control, and is used in various application because is involved with RFID leader recently. In this paper, patient's status monitoring, USN use wish to. Because USN can utilize existent network, it is system that can transmit various data as that change passed information.Wish to send information that get in health-care board. Information that can get in health-care board is blood pressure, blood sugar, stroke, SPO2, ECG, the activity amount, position. Also, wish to forecast use possibility to involved various service, silver industry with database.

• The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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• v.19 no.6
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• pp.60-71
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• 2008

RFID 기술은 ISO/IEC 18000 표준문서에서 정의한 규격에 기반하여 기술 개발이 진행되고 있으며, USN 기술은 IEEE 802.15.4에 기반한 Zigbee 표준문서를 따르는 센서 노드를 중심으로 기술이 발전하고 있다. 이러한 기본적인 통신 기능과 더불어 RFID/USN 정보 보호를 위한 보안 기술 논의도 활발하게 전개되고 있으며, 그 결과로서 RFID/USN 보안 취약점, 보안 필요성 및 보안 요구사항 등에 대한 분석 자료들은 지속적으로 발표되고 있다. 그러나 요구사항 분석 자료와 달리 기술적인 해결 방안을 제시하는 자료들은 단편적인 기능에 중점을 둔 학술적인 이론 분석에 머무르고 있을 뿐 실제 상용화 수준의 개발 내용들을 제공하는 발표는 미흡한 실정이다. 따라서 본 고에서는 기본적인 보안 요구사항 정리 수준을 넘어보다 구체적인 RFID/USN 보안 기술의 개발 결과를 제시하고자 한다.