• Title, Summary, Keyword: smart sensor network

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MEM Temperature and Humidity Network Sensor for Wire and Wireless Network (유무선 통신용 MEMS 온습도 네트워크 센서)

  • Jung, Woo-Chul;Cha, Boo-Sang
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • pp.360-361
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    • 2006
  • This paper describes a wire and wireless network sensor for temperature and humidity measurements. The network sensor comprises PLC(Power Line Communication) and RF transmitter(433MHz) for acquiring an internal (on-board) sensor signal, and measured data is transmitted to a main processing unit. The network sensor module is consist of MEMS sensor, 10-bit A/D converter, pre-amp., gain-amp., ADUC812 one chip processor and PLC/RF transmitting unit. The temperature and humidity sensor is based on MEMS piezoelectric membrane structure and is implemented by using dual function sensor for smart home and smart building.

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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.

Design of Wireless Smart Plug for Energy Sensor Network (에너지 센서 네트워크를 위한 무선 스마트 플러그 설계)

  • Kim, Won-Ho
    • Journal of Satellite, Information and Communications
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    • v.6 no.2
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    • pp.131-135
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    • 2011
  • In this paper, we describe the design and implementation of wireless smart plug having AC power sensor and intelligent standby power control algorithm for energy sensor network. The adaptive standby power control algorithm has function to apply different threshold of standby power by using learning algorithm depending on electric equipments. As using the proposed algorithm, user convenience will be more better and power consumption can be more reduced. The implemented prototypes of wireless smart plug and wireless access point were tested to verify the required functions and performance. As a result, we confirmed practicality of wireless smart power sensor and satisfaction of given design specifications.

Implementation of Distributed Health-aware Bicycle System for Making Real-time Air-pollution Map (실시간 대기오염 지도 작성을 위한 분산형 건강인지 자전거 시스템 구현)

  • Cho, Joongjae;Yoo, Joonhyuk
    • IEMEK Journal of Embedded Systems and Applications
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    • v.9 no.4
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    • pp.229-235
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    • 2014
  • This paper presents an environmental navigation system which provides a guidance to the users of smart bicycle for a pollution-free route during their travel. The smart bicycle operates as a sensor node being composed of a distributed wireless sensor network over the whole urban area. Several environmental sensors measuring the amount of dust, CO, $CO_2$, $NO_2$ in the air are built into the smart bicycle to estimate the level of air pollution in the located area. Each smart bicycle sends/receives the measured sensor data and the city pollution map to/from the centralized server, which leads the bike-riders to a healthy route by providing the environmental navigation information. The proposed idea and its implementation give a useful insight on various application services with the distributed smart bicycles.

Design and Implementation of Multi-Sensor based Smart Sensor Network using Mobile Devices (모바일 디바이스를 사용한 멀티센서 기반 스마트 센서 네트워크의 설계 및 구현)

  • Koo, Bon-Hyun;Choi, Hyo-Hyun;Shon, Tae-Shik
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.45 no.5
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    • pp.1-11
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    • 2008
  • Wireless Sensor Networks is applied to improvement of life convenience or service like U-City as well as environment pollution, tunnel and structural health monitoring, storm, and earthquake diagnostic system. To increase the usability of sensor data and applicability, mobile devices and their facilities allow the applications of sensor networks to give mobile users and actuators the results of event detection at anytime and anywhere. In this paper, we present MUSNEMO(Multi-sensor centric Ubiquitous Smart sensor NEtwork using Mobile devices) developed system for providing more efficient and valuable information services with a variety of mobile devices and network camera integrated to WSN. Our system is performed based on IEEE 802.15.4 protocol stack. To validate system usability, we built sensor network environments where were equipped with five application sensors such magnetic, photodiode, microphone, motion and vibration. We also built and tested proposed MUSNEMO to provide a novel model for event detection systems with mobile framework.

Case Studies on Smart Sensor Application for the Next Generation High-Speed EMU (차세대 고속철도(동력분산식)에 적용할 스마트센서 사례 연구)

  • Chang, Duk-Jin;Kang, Song-Hee;Song, Dahl-Ho
    • Proceedings of the KSR Conference
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    • pp.1995-2005
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    • 2008
  • Recently, the smart sensors and USN (Ubiquitous Sensor Network) technologies are emerging. Smart sensors add the capability of storing local temporary data, processing instant operations, transmitting information outward, to the simple sensing devices. The USN is a wireless network of sensor/smart sensors that can collect data anywhere anytime and exchange the data within the network. In this research, case studies are performed on the smart sensors and USN applications. The cases were grouped in four categories, domestic private, domestic public, foreign private, and foreign public. Based on that survey, promising applications will be proposed and developed to be implemented to the next generation high-speed EMU.

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Smart Vision Sensor for Satellite Video Surveillance Sensor Network (위성 영상감시 센서망을 위한 스마트 비젼 센서)

  • Kim, Won-Ho;Im, Jae-Yoo
    • Journal of Satellite, Information and Communications
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    • v.10 no.2
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    • pp.70-74
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    • 2015
  • In this paper, satellite communication based video surveillance system that consisted of ultra-small aperture terminals with small-size smart vision sensor is proposed. The events such as forest fire, smoke, intruder movement are detected automatically in field and false alarms are minimized by using intelligent and high-reliable video analysis algorithms. The smart vision sensor is necessary to achieve high-confidence, high hardware endurance, seamless communication and easy maintenance requirements. To satisfy these requirements, real-time digital signal processor, camera module and satellite transceiver are integrated as a smart vision sensor-based ultra-small aperture terminal. Also, high-performance video analysis and image coding algorithms are embedded. The video analysis functions and performances were verified and confirmed practicality through computer simulation and vision sensor prototype test.

Development of Smart Sensor/Actuator Node using CAN (CAN을 이용한 Smart Sensor/Actuator Node 개발)

  • Lee, Won-Moo;Jung, Joon-Hong;Yoo, Sang-Jin;Cho, Yong-Suk;Park, Ki-Heon
    • Proceedings of the KIEE Conference
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    • pp.2132-2134
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    • 2002
  • 최근 분산제어시스템 설계시 CAN(Controller Area Network)을 적용하는 연구가 활발히 진행되고 있다. 본 논문에서는 분산제어에 필요한 각종 입출력 데이터를 CAN버스 상에서 송수신할 수 있는 Smart Sensor/Actuator Node를 직접 개발하고, 이를 이용한 실험용 Network를 구축하였다. Sensor Node에서 획득된 외부의 Analog신호를 CAN Bus를 통해 전송한 후, 원격지의 Actuator Node에서 출력하는 Data 송수신 실험을 통해서 설계된 Network와 각 Node의 효율성을 입증하였다.

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Sensor Node Design based on State Transition Model (상태천이모델 기반의 센서 노드 설계)

  • Shin, DongHyun;Kim, Changhwa
    • Journal of Korea Multimedia Society
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    • v.20 no.8
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    • pp.1357-1368
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    • 2017
  • Sensor networks are used in various fields such as marine, defense, and smart home etc. Among the components of the sensor network, the sensor node collects sensor data, as one of the representative sensor network roles, and the sensor node makes a greate influence on the overall performance of the sensor network. Therefore, how to design the sensor node is an important issue in the sensor network field. However, the research on the sensor network architecture suitable for the sensor network installation environment has been made more important than the research on how to configure the sensor node. In this paper, we propose to identify elements to be considered for designing a sensor node that makes a large influence on the performance of the sensor network, and to easily implement the sensor node through the state transition model based on these elements.

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.