Design of a Base Station for MEMS CCR Localization in an Optical Sensor Network
This paper introduces a design and implementation of a base station, capable of positioning sensor nodes using an optical scheme. The base station consists of a pulse laser module, optical detectors and beam splitter, which are mounted on a rotation-stage, and a Time to Digital Converter (TDC). The...
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MDPI AG
2014-05-01
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Series: | Sensors |
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Online Access: | http://www.mdpi.com/1424-8220/14/5/8313 |
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author | Chan Gook Park Hyun Cheol Jeon Hyoun Jin Kim Jae Yoon Kim |
author_facet | Chan Gook Park Hyun Cheol Jeon Hyoun Jin Kim Jae Yoon Kim |
author_sort | Chan Gook Park |
collection | DOAJ |
description | This paper introduces a design and implementation of a base station, capable of positioning sensor nodes using an optical scheme. The base station consists of a pulse laser module, optical detectors and beam splitter, which are mounted on a rotation-stage, and a Time to Digital Converter (TDC). The optical pulse signal transmitted to the sensor node with a Corner Cube Retro-reflector (CCR) is reflected to the base station, and the Time of Flight (ToF) data can be obtained from the two detectors. With the angle and flight time data, the position of the sensor node can be calculated. The performance of the system is evaluated by using a commercial CCR. The sensor nodes are placed at different angles from the base station and scanned using the laser. We analyze the node position error caused by the rotation and propose error compensation methods, namely the outlier sample exception and decreasing the confidence factor steadily using the recursive least square (RLS) methods. Based on the commercial CCR results, the MEMS CCR is also tested to demonstrate the compatibility between the base station and the proposed methods. The result shows that the localization performance of the system can be enhanced with the proposed compensation method using the MEMS CCR. |
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institution | Directory Open Access Journal |
issn | 1424-8220 |
language | English |
last_indexed | 2024-04-13T01:03:00Z |
publishDate | 2014-05-01 |
publisher | MDPI AG |
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series | Sensors |
spelling | doaj.art-2495eb7e9f5d4482af5a37634171ee712022-12-22T03:09:26ZengMDPI AGSensors1424-82202014-05-011458313832910.3390/s140508313s140508313Design of a Base Station for MEMS CCR Localization in an Optical Sensor NetworkChan Gook Park0Hyun Cheol Jeon1Hyoun Jin Kim2Jae Yoon Kim3Department of Mechanical and Aerospace Engineering/IAAT, Seoul National University, Seoul 151-741, KoreaDepartment of Mechanical and Aerospace Engineering/ASRI, Seoul National University, Seoul 151-741, KoreaDepartment of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-741, KoreaHyundai Mobis, 17-2, Mabuk-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 446-505, KoreaThis paper introduces a design and implementation of a base station, capable of positioning sensor nodes using an optical scheme. The base station consists of a pulse laser module, optical detectors and beam splitter, which are mounted on a rotation-stage, and a Time to Digital Converter (TDC). The optical pulse signal transmitted to the sensor node with a Corner Cube Retro-reflector (CCR) is reflected to the base station, and the Time of Flight (ToF) data can be obtained from the two detectors. With the angle and flight time data, the position of the sensor node can be calculated. The performance of the system is evaluated by using a commercial CCR. The sensor nodes are placed at different angles from the base station and scanned using the laser. We analyze the node position error caused by the rotation and propose error compensation methods, namely the outlier sample exception and decreasing the confidence factor steadily using the recursive least square (RLS) methods. Based on the commercial CCR results, the MEMS CCR is also tested to demonstrate the compatibility between the base station and the proposed methods. The result shows that the localization performance of the system can be enhanced with the proposed compensation method using the MEMS CCR.http://www.mdpi.com/1424-8220/14/5/8313CCRlocalizationsensor networksensor nodeTDCTOF |
spellingShingle | Chan Gook Park Hyun Cheol Jeon Hyoun Jin Kim Jae Yoon Kim Design of a Base Station for MEMS CCR Localization in an Optical Sensor Network Sensors CCR localization sensor network sensor node TDC TOF |
title | Design of a Base Station for MEMS CCR Localization in an Optical Sensor Network |
title_full | Design of a Base Station for MEMS CCR Localization in an Optical Sensor Network |
title_fullStr | Design of a Base Station for MEMS CCR Localization in an Optical Sensor Network |
title_full_unstemmed | Design of a Base Station for MEMS CCR Localization in an Optical Sensor Network |
title_short | Design of a Base Station for MEMS CCR Localization in an Optical Sensor Network |
title_sort | design of a base station for mems ccr localization in an optical sensor network |
topic | CCR localization sensor network sensor node TDC TOF |
url | http://www.mdpi.com/1424-8220/14/5/8313 |
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