• Title, Summary, Keyword: WSN

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A Study On The Design of Patient Monitoring System Using RFID/WSN Based on Complex Event Processing (복합 이벤트 처리기반 RFID/WSN을 이용한 환자모니터링 시스템 설계에 관한 연구)

  • Park, Yong-Min;Oh, Young-Hwan
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.46 no.10
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    • pp.1-7
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    • 2009
  • Nowadays there are many studies and there's huge development about RFID and WSN which have great developmental potential to many kinds of applications. In particular, the healthcare field is expected to could be securing international competitive power in u-Healthcare and combined medical treatment industry and service. More and more real time application apply RFID and WSN technology to identify, data collect and locate objects. Wide deployment of RFID and WSN will generate an unprecedented volume of primitive data in a short time. Duplication and redundancy of primitive data will affect real time performance of application. Thus, emerging applications must filter primitive data and correlate them for complex pattern detection and transform them to events that provide meaningful, actionable information to end application. In this paper, we design a complex event processing system. This system will process RFID and WSN primitive data and event and perform data transformation. Integrate RFID and WSN system had applied each now in medical treatment through this study and efficient data transmission and management forecast that is possible.

A Study on WSN based Low Power Fire Prevention System (무선 센서 네트워크 기반 저전력 화재방재 시스템을 위한 전송 프로토콜 연구)

  • Kim, Young-Hyuk;Lim, Il-Kwon;Li, Qi Gui;Kim, Myung-Jin;Lee, Jae-Kwang
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.535-538
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    • 2010
  • In this paper, this study goal is development for WSN-based fire prevention systems of using temperature/humidity Sensor. So, distributed sensor nodes structural and packet transfer characteristics study for fire monitoring. Battery-operated wireless sensor networks is data transfer manner of multi-hop. WSN fire prevention system need to sensor nodes management and energy consumption of efficient adjust for sustained action. Thus, study with efficient energy consumption the normal WSN environment is not, characteristics for WSN fire prevention environment.

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Design Construction of Test Bed for WSN and Effective Integral Test Simulation Settings (WSN을 위한 테스트베드와 가상환경의 효율적인 통합 테스트 시뮬레이션 환경 구축)

  • Park, Kyung-Joon;Choi, Dae-Dam;Seo, Min-Seok;Park, Hyun-Ju
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.3
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    • pp.584-596
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    • 2013
  • WSN (Wireless Sensor Network), to take advantage of the range was gradually expanded. So WSN access from public network to the desire to be increased. As a result, the test network environment for research has been progressing steadily. Because it requires a lot of sensor nodes, to establish of Testbed for WSN is difficult. in this paper suggests efficient integration test simulation environment of Testbed and Virtual environment for WSN. In addition to this paper suggests simulation environment able to integration of simulation time of Testbed and NS-3.

A Real-Time Message System of Wireless Sensor Network Using Rich Internet Application (RIA를 적용한 무선 센서네트워크의 실시간 메시지 시스템)

  • Kim, Hun;Jeon, Yeong-Jun;Sin, Seung-Ho
    • 한국HCI학회:학술대회논문집
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    • pp.654-659
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    • 2009
  • As web based software has developed recently, service via web has increased gradually. For this, many research organizations and reports call web is the platform of software. While web based technologies have developed, middleware of WSN and its application service has been developed from desktop based operation system. So WSN's technology reached uppermost limit of desktop application. There's difficulty in integrating, distributing and maintaining & repairing for WSN due to a tightly-coupled structure which's related closely to the hardware of sensor nod. Unlike this, web has a loosely-coupled structure and an opened system, so web service or Rich internet application (RIA) is helpful to solve the above limits. Especially, RIA is web application but can be the platform of WSN' application because it gives us various methods to communicate with user interface similar to desktop application. In this study, I suggest Message System for WSN Using RIA, expanding WSN's interconnectedness and accessibility to internet.

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A-PEGASIS : Advanced Power Efficient GAthering in Sensor Information Systems (개선된 센서 라우팅 방식 : A-PEGASIS)

  • Suh, Chang-Jin;Yang, Jin-Ung
    • Journal of KIISE:Information Networking
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    • v.34 no.6
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    • pp.458-465
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    • 2007
  • Wireless Sensor Network(WSN) is a special network that collects measured data by sensor nodes in the predefined sensor field and forwards them to the base station in a distance using their own routing scheme. WSN requires routing techniques to maximize energy efficiency because sensor nodes have non-rechargeable and thus limited energy. Characteristics of WSN are various according to applications, many of routing algorithms have been proposed. This paper proposes an algorithm called A-PEGASIS that basically bases on PEGASIS and enhances in two aspects - an elegant chain generation algorithm and periodical update of chains. We compare performance of the previous algorithm of LEACH, PEGASIS, PEDAP and PEDAP-PA with ours through simulation. It confirms that the A-PEGASIS is most superior in terms of average WSN lifetime and high probability of node survival rate during WSN life time.

Analyses of Intrusion Detection Model in Wireless Sensor Networks (무선 센서 네트워크에서의 침입탐지 모델의 분석)

  • Kim, Jung-Tae
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.857-860
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    • 2009
  • Intrusion detection in Wireless Sensor Network (WSN) is of practical interest in many applications such as detecting an intruder in a battlefield. The intrusion detection is defined as a mechanism for a WSN to detect the existence of inappropriate, incorrect, or anomalous moving attackers. For this purpose, it is a fundamental issue to characterize the WSN parameters such as node density and sensing range in terms of a desirable detection probability. In this paper, we consider this issue according to two WSN models: homogeneous and heterogeneous WSN.

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태양 에너지 수집형 무선 센서 네트워크의 연구 이슈

  • No, Dong-Geon
    • Information and Communications Magazine
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    • v.29 no.10
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    • pp.74-82
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    • 2012
  • 무선 센서 네트워크(WSN, Wireless Sensor Network)는 최근 주목 받고 있는 가상-물리 시스템 (CPS, Cyber-Physical System)의 입력을 담당하는 부분으로써 CPS를 구성하는 주요한 부분 중 하나이다. 본고에서는 기존의 배터리 기반 WSN의 짧은 수명 및 높은 유지관리 비용을 극복하기 위하여 최근 활발히 연구되고 있는 태양 에너지 기반 무선 센서 네트워크(SP-WSN, Solar-powered WSN)의 연구 동향과 이슈들을 살펴보고자 한다.

Design and Performance Analysis of Welfare Management System based on WSN (WSN 기반 복지 관리 시스템 설계 및 성능분석)

  • Kim, Ji-Seong;Kim, Kang-Hee;Hwang, Ho-Young;Suh, Hyo-Joong
    • Journal of Internet Computing and Services
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    • v.9 no.6
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    • pp.99-107
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    • 2008
  • Wireless sensor networks (WSN) based on low-power technologies become important portion of ubiquitous systems. In this paper, we introduce a WSN-based welfare management system as one of the WSN applications. Especially, we implement S-MAC (Sensor Medium Access control) protocol on our system that saves both cost and power consumption, and we evaluate system performances using the TOSSIM simulator. Sensors and a small database server are placed in the house of participant, which collects and stores some environment conditions of the house. The small servers are connected to each others by wireless ad-hoc network.

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Integration of RFID into Wireless Sensor Networks: Architecture and Meta-Model Applied for Supply Chain Management Systems (WSN과 RFID의 통합: SCM을 위한 아키텍처와 메타모델)

  • Nguyen, Xuan Quy;Vishnu, Kumar;Kyung, Min-Gi;Min, Dug-Ki
    • 한국IT서비스학회:학술대회논문집
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    • pp.431-436
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    • 2008
  • 지난 몇 년 동안 컴퓨터 네트워크에는 다음과 같은 중요한 일이 발생하였다. 장치 대 장치, 기계 대 기계의 통신이 컴퓨터 네트워크에서 주요한 이슈로 떠오른 것이다. 그 중에 가장 눈에 띄는 주제 중 하나인 WSN에 속한 RFID이다. 이 RFID와 WSN의 통합에 대한 아이디어는 퍼베이시브 컴퓨팅에서 나오게 되었다. RFID와 WSN은 퍼베이시브 컴퓨팅의 주요 요소이고, 이 두 가지 기술은 현실 세계와 가상 세계를 묶어주는 역할을 한다. 하지만 RFID와 WSN은 각각 병렬적으로 개발되고 있으며, 비즈니스 애플리케이션의 통합을 위해서는 자세한 규칙과 방법들이 연구되어야 한다. 본 논문에서는 RFID와 WSN가 통합된 비즈니스 도메인을 위한 시스템 아키텍처 프레임워크 모델링을 제안한다. RFID와 WSN을 동시에 이용해서 SCM을 관리하는 것이다. 이를 위해서 RFID와 WSN, 각각의 기술에 대한 요소를 제안한다. 본 논문에서는 그래픽 모델링 환경(GME)을 이용해서 비즈니스 도메인을 위한 시스템 아키텍처 프레임워크 모델을 만든다.

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Strongly-Connected Hierarchical Grid-Based Pairwise Key Predistribution Scheme for Static Wireless Sensor Networks (정적 무선 센서 네트워크를 위한 강한 연결성을 가진 계층적 그리드 기반의 키 선분배 기법)

  • Nyang Dae-Hun;Abedelaziz Mohaisen
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.43 no.7
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    • pp.14-23
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    • 2006
  • Wireless Sensor Network(WSN) consists of huge number of sensor nodes which are small and inexpensive with very limited resources. The public key cryptography is undesirable to be used in WSN because of the limitations of the resources. A key management and predistribution techniques are required to apply the symmetric key cryptography in such a big network. Many key predistribution techniques and approaches have been proposed, but most of-them didn't consider the real WSN assumptions, In this paper, we propose a security framework that is based on a hierarchical grid for WSN considering the proper assumptions of the communication traffic and required connectivity. We apply simple keying material distribution scheme to measure the value of our framework. Finally, we provide security analysis for possible security threats in WSN.