Camera-based measurement for close-distance relative vessel positioning

Mizuchil, Yoshiaki; Ogura, Tadashi; Kim, Young-Bok; Hagiwara, Yoshinobu; Choi, Yongwoon

doi:10.1007/s12206-017-0338-3

Cited by 2 publications

(1 citation statement)

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“…Thus, a portable interface system is complete when it can be simultaneously used as a communication tool for operators and workers as needed. In this study, we propose a portable interface system that can determine the positional relationship, location, and orientation between a large ship and wharf for berthing by installing two sets of distance-measuring instruments [4,8,9] based on a stereo camera system on the vessel side, as shown in Figure 2. The background to the development of this system is that, while terminal devices that serve as interface systems [10] are widespread in many industrial fields in general society, there are relatively few interface systems that can be shared among workers in large-scale operations involving many workers, such as port-related berthing operations.…”

Section: Introductionmentioning

confidence: 99%

Development of a Portable Interface System Sharing the Positioning and Heading Information to Support a Berthing Vessel

Ito

Tsuyuzaki

Yuasa

et al. 2022

JMSE

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The study develops a portable interface system to inform berthing operators of the position and heading in relation to the quay when berthing a large vessel equipped with distance-measuring instruments. A portable interface system is indispensable for preventing collisions and improving the efficiency of berthing operations because it allows operators to intuitively grasp the movement status of the vessel based on the distance data measured during berthing. These data can not only be converted into the current position and heading of the vessel relative to the quay, but can also be visualized to predict the movement and speed of the vessel in a few seconds. Therefore, we developed a visualization system using Rviz, a 3D model visualization tool for a robot operating system, and verified the necessity for an interface system through simulations and experiments using a model vessel. Furthermore, we extended the function of the visualization interface using a wireless network, developed a web application to display the vessel’s positioning information on multiple operators’ terminals, and verified the drawing stability at 10 Hz using the extended application.

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