This paper presents a new real-time heading estimation method for an all-wheel steered single-articulated autonomous vehicle guided by a magnetic marker system. To achieve good guidance control for the vehicle, precise estimation of the position and heading angle during travel is necessary. The main concept of this study is to estimate the heading angle from the relative orientations of the magnetic markers and the vehicle motion. To achieve this, a kinematic model of the all-wheel steered vehicle is derived and combined with the motion of a magnetic ruler mounted near each axle underneath the vehicle. The position coordinates and polarities of the magnetic markers, which are provided a priori, are used to determine the vehicle position at every detection instance. A gyroscope is employed to assist real-time heading estimation at sample times when there are no marker detection data. The proposed method was tested on a real vehicle and evaluated by comparing the experimental results with those of the differential global positioning system (DGPS) in real-time kinematics (RTK) mode. Experimental results show that the proposed method exhibits good performance for heading estimation.
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July 2016
Research-Article
Heading Estimation Based on Magnetic Markers for Intelligent Vehicles
Yeun Sub Byun,
Yeun Sub Byun
Metropolitan Transportation Research Center,
Korea Railroad Research Institute,
#176 Cheoldobakmulkwan-ro, Uiwang-si,
Gyeonggi-do 16105, South Korea
e-mail: ysbyun@krri.re.kr
Korea Railroad Research Institute,
#176 Cheoldobakmulkwan-ro, Uiwang-si,
Gyeonggi-do 16105, South Korea
e-mail: ysbyun@krri.re.kr
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Young Chol Kim
Young Chol Kim
Department of Electronics Engineering,
Chungbuk National University,
1 Chungdae-ro, Seowon-Gu, Cheongju,
Chungbuk 28644, South Korea
e-mail: yckim@cbu.ac.kr
Chungbuk National University,
1 Chungdae-ro, Seowon-Gu, Cheongju,
Chungbuk 28644, South Korea
e-mail: yckim@cbu.ac.kr
Search for other works by this author on:
Yeun Sub Byun
Metropolitan Transportation Research Center,
Korea Railroad Research Institute,
#176 Cheoldobakmulkwan-ro, Uiwang-si,
Gyeonggi-do 16105, South Korea
e-mail: ysbyun@krri.re.kr
Korea Railroad Research Institute,
#176 Cheoldobakmulkwan-ro, Uiwang-si,
Gyeonggi-do 16105, South Korea
e-mail: ysbyun@krri.re.kr
Young Chol Kim
Department of Electronics Engineering,
Chungbuk National University,
1 Chungdae-ro, Seowon-Gu, Cheongju,
Chungbuk 28644, South Korea
e-mail: yckim@cbu.ac.kr
Chungbuk National University,
1 Chungdae-ro, Seowon-Gu, Cheongju,
Chungbuk 28644, South Korea
e-mail: yckim@cbu.ac.kr
1Corresponding author.
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received May 6, 2015; final manuscript received March 4, 2016; published online May 13, 2016. Assoc. Editor: Beshah Ayalew.
J. Dyn. Sys., Meas., Control. Jul 2016, 138(7): 071009 (8 pages)
Published Online: May 13, 2016
Article history
Received:
May 6, 2015
Revised:
March 4, 2016
Citation
Sub Byun, Y., and Chol Kim, Y. (May 13, 2016). "Heading Estimation Based on Magnetic Markers for Intelligent Vehicles." ASME. J. Dyn. Sys., Meas., Control. July 2016; 138(7): 071009. https://doi.org/10.1115/1.4033021
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