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광신호를 이용한 센서노드 위치 인식 기법에서의 광학 오차율 측정
Measurement of Position Error in the Sensor Node Localization Scheme Using Optical Signal

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Authors
김재윤; 유영민; 장우협; 박찬국
Issue Date
2010-05-27
Publisher
ICROS
Citation
2010년도 ICROS 학술대회, 2010년 5월 27-28일, 강원대학교
Keywords
Base stationSensor nodeLocalizationPSDCCR
Abstract
This paper describes a conceptual design of sensor node localization system,
called "base station", for obtaining position of sensor node. The base station consists of the
laser, two of beam splitters, PSD(Position Sensing Detector) and two of optical detectors
with TDC(Time to Digital Convertor). The optical signal transmitted to the sensor node
equipped with the CCR(Corner Cube Retro-reflector) is reflected to the base station and
the PSD measures pixel data where the beam is hit. With the pixel data from the PSD
and the distance data from the TDC, we can calculate the position of the sensor node. In
this paper, we propose the setup to prove this localization scheme. In the experiment, for
verifying this localization scheme, we change the horizontal position of the sensor node
from the center position with fixing the depth element of the sensor node at 30cm distance
and measure the point data from the PSD. With the given 30cm distance, we compare
measurement with theoretical value and analyze the error according to the horizontal
change due to the optical elements. The experimental result shows that our proposed
scheme has less than few millimeter position error in the limited field of view range.
Language
Korean
URI
https://hdl.handle.net/10371/70919
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Others_기계항공공학부
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