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A Study on Dynamic Safety Navigation Envelopes Considering a Ship’s Position Uncertainty

Authors
Pyo-Woong SonYoungki KimTae Hyun FangKiyeol Seo
Issue Date
9월-2023
Publisher
사단법인 항법시스템학회
Citation
Journal of Positioning, Navigation, and Timing, v.12, no.3, pp 289 - 294
Pages
6
Journal Title
Journal of Positioning, Navigation, and Timing
Volume
12
Number
3
Start Page
289
End Page
294
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/10400
ISSN
2288-8187
Abstract
As technologies such as cameras, Laser Imaging, Detection, and Ranging (LiDAR), and Global Navigation Satellite Systems (GNSS) become more sophisticated and common, their use in autonomous driving technologies is being explored in various fields. In the maritime area, technologies related to collision avoidance between ships are being developed to evaluate and avoid the risk of collision between ships by setting various scenarios. However, the position of each vessel used in the process of developing collision avoidance technology between vessels uses data obtained through GNSS, and may include a position error of 10 m or more depending on the situation. In this paper, a study on the dynamic safety navigation range including the positional inaccuracy of the ship is conducted. By combining the concept of the protection level obtained using GNSS raw data with a conventional safe navigation range, a safer navigation range can be calculated for dynamic navigation. The calculated range is verified using data obtained while sailing in an actual sea environment.
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