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안내 로봇 실용화를 위한 비 관성센서 기반 옥외용 위치평가

Non-Inertial Sensor-Based Outdoor Localization for Practical Application of Guide Robots

Journal of the Korean Society for Precision Engineering 2017;34(5):315-321.
Published online: May 1, 2017

1 제주대학교 메카트로닉스공학과

2 제주관광대학교 해군기술부사관계열

1 Department of Mechatronics Engineering, Jeju National University

2 Major of Technical Petty Officer, Jeju Tourism University

#E-mail: jhlim@jejunu.ac.kr, TEL: +82-64-754-3712, FAX: +82-64-751-3710
• Received: September 5, 2016   • Revised: November 4, 2016   • Accepted: February 7, 2017

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Non-Inertial Sensor-Based Outdoor Localization for Practical Application of Guide Robots
J. Korean Soc. Precis. Eng.. 2017;34(5):315-321.   Published online May 1, 2017
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Non-Inertial Sensor-Based Outdoor Localization for Practical Application of Guide Robots
J. Korean Soc. Precis. Eng.. 2017;34(5):315-321.   Published online May 1, 2017
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Non-Inertial Sensor-Based Outdoor Localization for Practical Application of Guide Robots
Image Image Image Image Image Image Image Image Image Image
Fig. 1 System model
Fig. 2 Flowchart for localization simulation
Fig. 3 Simulation results
Fig. 4 Error characteristics
Fig. 5 Pioneer robot with navigation sensors
Fig. 6 Experimental environment
Fig. 7 Localization results without compass
Fig. 8 Localization results with compass
Fig. 9 Comparison of errors for each position
Fig. 10 Experimental results for complex environments
Non-Inertial Sensor-Based Outdoor Localization for Practical Application of Guide Robots

Statistical characteristic of errors for simulation

Sensor Std. Mean
DGPS x(m) 3.0 0.0
y(m) 3.0 0.0
Compass θ(°) 3.0 0.0
DR (Encoder) x(m) 0.2 0.0
y(m) 0.2 0.0
x(m) 0.2 0.1

Specifications of sensors

Sensor Model Accuracy
DGPS ASCEN 680 2.5 m
Compass Honeywell HMC 6325 ±2.5°

Error characteristics of each localization method

(unit : m)

Method Max. Avg. Std.
DGPS only 4.6 2.0 1.7
EKF without compass 3.2 1.6 0.8
EKF with compass 2.2 0.9 0.6
Table 1 Statistical characteristic of errors for simulation
Table 2 Specifications of sensors
Table 3 Error characteristics of each localization method (unit : m)