• Title, Summary, Keyword: USN (Ubiquitous Sensor Network)

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A Routing Scheme for Reducing the Power Consumption of USN Nodes (USN 노드의 소비전력 절감을 위한 경로설정 기법)

  • Lee, Moon-Ho
    • Journal of Information Technology Applications and Management
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    • v.14 no.2
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    • pp.1-10
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    • 2007
  • The ubiquitous computing system is expected to be widely utilized in digital home, logistics control, environment/disaster management, medical/health-care services and other applications. The ubiquitous sensor network (USN) is a key infra-structure of this system. Nodes in the USN are exposed to adverse environments and required to perform their missions with very limited power supply only. Also the sensor network is composed of much more nodes. In case some node consumes up its power capacity under a certain required level, the network topology should change and re-routing/ re-transmission of data is necessitated. Resultantly communication protocols studied for conventional wireless networks or ad-hoc networks are not suitable for the sensor network. Schemes should be devised to control the efficient usage of node power in the sensor network. This paper proposes a routing algorithm to enhance the efficiency of power consumption for USN node and analyzes its performance by simulation.

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Implementation of the Baby Care System Using Smart Sensor (스마트 센서를 이용한 Baby Care 시스템 구현)

  • Chung, Jae-Pil;Lee, Tae-Bong
    • Journal of Advanced Navigation Technology
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    • v.18 no.6
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    • pp.648-652
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    • 2014
  • The core of existing IT industry has been multimedia contents based on internet network. But nowadays, ubiquitous technology which combines sensors and network technology is emerging and is called USN (ubiquitous sensor network). Health care industry is one of suitable areas for USN application. In this paper, sensor network for baby care is proposed. The proposed baby care system consists of bluetooth network to transfer information which comes from various sensors like falling detecting, crying and fever detecting sensor to keep infant's status safe from external-potential threats. The effectiveness of the implemented system is showed through demonstration.

Control and acquisition system for USN sensors (USN 센서 제어 및 정보 취득 시스템)

  • Nam, Seung-Hyun
    • Journal of Sensor Science and Technology
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    • v.18 no.6
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    • pp.409-416
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    • 2009
  • A lot of valuable-piece of information are acquisited through ubiquitous sensor network(USN) system composed of man-made sensors. The telemetry system used for communicating to access informations between nature and human-beings monitors and estimates the status of infrastructure, utilities and natural environments to prevent hidden disasters, improving quality of life and productivity in multi-directional views. That would be the reason of USN subsistence. This paper will be a review on how to build long-term USN system. Therefore, this paper focuses on reviewing the sensor interface and the sensor network interface and its significance as the foundation stone for varying USN service profiles and showing its development example, and finally proposing a few of things to set up future-oriented USN open system.

A Study on the Application Service Model and Platform for Web Services Based on USN Application Developments (웹 서비스 기반의 USN 응용 개발을 위한 응용서비스 모델 및 플랫폼에 관한 연구)

  • Kim, Chang-Su;Cao, Ke-Rang;Jung, Hoe-Kyung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.485-488
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    • 2010
  • Recently, as the dissemination of the Internet and development of computer network technology, Research is actively underway for realization of the next-generation computing paradigm called Ubiquitous Computing. It will not be constrained by Space-time and It will be a cornerstone of human-oriented services. Such ubiquitous computing as a core technology for USN (Ubiquitous Sensor Network) is presented. In this paper, the sensor information into a standardized form to describe the information describing standards and USN sensor applications for the service standard for directory services protocols were investigated.

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Design of Presentation Language for Sensor Node Data Representation (센서 노드 데이터 표현을 위한 표현 언어 설계)

  • Kim, Chang-Su;Yu, Sang-Geun;Kim, Yong-Un;Kim, Hyeong-Jun;Jung, Hoe-Kyung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.2
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    • pp.378-383
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    • 2012
  • Nowadays, the study is going on develop USN(Ubiquitous Sensor Network) with diffusion of the internet and development of computer network technology. USN sensor nodes equipped with various types of sensors provide sensor information to each individual sensors. To do this there needs standardized data description language for allowing many people to use based on XML in web services environment. In this paper, USN sensor information required for application services in a standardized form to describe the sensor data representation language was designed. USN-based technology utilized in the field, and will be utilized for service activation.

The research of Sensor network service analysis based on OGC (OGC 기반의 센서 네트워크 서비스 분석 연구)

  • Kim, Nam-Hoon;Ham, Jong-Wan;Jung, Hoe-Kyung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.14 no.3
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    • pp.774-780
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    • 2010
  • USN(Ubiquitous Sensor Network) is a core infrastructure that u-life use to enable the realization in the ubiquitous society through various services of area such as u-city, u-Health. Therefore, we need a research for domestic standards to establish USN technique. Currently, status of USN standards is most standard and research that it is a technology for sensor node implementation and a protocol for energy-efficient communication and interlock with existing network. But, Standard and research for sensor network and integration management of heterogeneous sensor networks for USN application and sensing data management and USN database structure definition such as application and middleware is weak level. In this paper, we researched for standard development of domestic a sensor network and the relevant standard analysis to configure SWE(Sensor Web Enablement) of OGC(Open Geospatial Consortium) for standarded plattform technology. Also we researched that it's a connection between domestic ITA(Telecommunications Technology Association) standards and SWE Standard.

Development of Baby Care Mobile Application Using Smart Sensor (스마트 센서를 이용한 Baby Care 모바일 어플리케이션 개발)

  • Chung, Jae-Pil
    • Journal of Advanced Navigation Technology
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    • v.19 no.6
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    • pp.643-647
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    • 2015
  • Nowadays, ubiquitous technology which combines sensors and network technology is emerging and it is called ubiquitous sensor network (USN). In this paper, mobile application for baby care using smart sensor is proposed. The proposed mobile application consists of mobile networks to transfer the information. It detects various information such as falling detecting, crying and fever detecting of infants. It keeps infants from external threats. The developed mobile application will be examined by simulation.

A Study on the Improvement Alternatives using USN Technology on Bicycle and Infrastructures (USN 융합기술을 활용한 자전거 시설물의 안전향상에 관한 연구)

  • Chung, Sung-Hak
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.8
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    • pp.173-180
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    • 2010
  • This research aims to enhance the security and safety of bicycle facilities by utilizing convergence technology of ubiquitous sensor network in the transportation system. To achieve the aim, U-bike system has developed by utilizing sensor network technology, and the serviceability and safety function of public facilities in the system have enhanced. This research also presents a plan for the construction of U-bike using ubiquitous sensor network and safety infrastructure of facilities by analyzing bicycle traffic reports and characteristics of service through studying the literature on the security of bicycles and the safety of facilities on bicycle lanes. The result of this research will contribute to the enhancement of safety function of bicycle lanes and facilities around National 4 major rivers bicycle lanes in the future.

An Efficient USR system design and implementation based on the USN (USN을 이용한 효율적인 USR 시스템 설계 및 구현)

  • Jin, Woo-Jeong;Xiao, Huang;Jeong, Dae-Ryeong;Shin, Geuk-Jae;Jung, Hoe-Kyung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.451-453
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    • 2010
  • The world is rapidly evolving in the future society is based on intelligence. In such circumstances, USN(Ubiquitous Sensor Network) to implement the future ubiquitous(Ubiquitous) society have been highlighted as a key infrastructure. For realization of Ubiquitous computing(Ubiquitous Computing), The data recognized from each sensors must be collected on real-time and transferred to applied service so that they may be used as data for providing service to users. USN sensor data on the use for using a numerous sensor data provision service, service provider can publish its service in standardized registry for users to search and use the service registry. However, in previous studies using Web services standards WS-Eventing, and UDDI(Universal Description, Discovery, and Integration) as USR(USN Service Registry) for USN Application Service is unnecessary or insufficient. In this paper, data from sensors that provide information to service providers register their services and use the information for service users to explore and views on the registry of the system was designed and implemented.

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A Study on Method for Deflection Management in FCM Bridge using Sensor Network (센서네트워크를 이용한 FCM 교량의 처짐 관리 방안 연구)

  • Jo, Byung-Wan;Tea, Ghi-Ho;Kwon, Oh-Hyuk
    • Journal of the Korean Society of Hazard Mitigation
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    • v.8 no.4
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    • pp.9-16
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    • 2008
  • Ubiquitous technology is proposed which is used wireless sensor network for deflection management at casting and after casting of FCM bridge. Proposed method are analyzed which are sensor experiment and existing FCM bridge using ubiquitous sensor network. Wireless sensor network enables low-cost sensing of environment. As a results, the field application shows that USN is useful method for structural health monitoring system which long distance away.