한국산업융합학회 논문집 (Journal of the Korean Society of Industry Convergence)
- 제10권2호
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- Pages.105-113
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- 2007
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- 1226-833X(pISSN)
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- 2765-5415(eISSN)
무선 센서 네트워크에서 이동성 로봇을 이용한 센서 위치 인식 기법에 관한 연구
A Localization Scheme Using Mobile Robot in Wireless Sensor Networks
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김우현
(영남이공대학 로보테크과)
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Kim, Woo-Hyun
(Dpt. of Robotech Engineering Yeungnam College of Science & Technology)
- 투고 : 2007.01.08
- 심사 : 2007.05.23
- 발행 : 2007.05.31
초록
Accurate and low-cost sensor localization is a critical requirement for the deployment of wireless sensor networks in a wide variety of application. Sensor position is used for its data to be meaningful and for energy efficient data routing algorithm especially geographic routing. The previous works for sensor localization utilize global positioning system(GPS) or estimate unknown-location nodes position with help of some small reference nodes which know their position previously. However, the traditional localization techniques are not well suited in the senor network for the cost of sensors is too high. In this paper, we propose the sensor localization method with a mobile robot, which knows its position, moves through the sensing field along pre-scheduled path and gives position information to the unknown-location nodes through wireless channel to estimate their position. We suggest using the sensor position estimation method and an efficient mobility path model. To validate our method, we carried out a computer simulation, and observed that our technique achieved sensor localization more accurately and efficiently than the conventional one.