DCPA simulation model for automatic collision avoidance decision making systems using fuzzy sets

Zhao, J.; Tan, Mingyi; Price, W. G.; Wilson, P.A.

doi:10.1109/oceans.1994.364049

Cited by 9 publications

(3 citation statements)

References 5 publications

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“…Another popular safety criterion, which was first proposed by Fujii and Tanaka (1971) is the use of ship domain – a physical spacing around the ship to ensure sufficient separation between ships. Ship domain has been adopted in collision-risk assessments (Fujii and Tanaka, 1971; Goodwin, 1975; Pietrzykowski, 2008; Pietrzykowski and Uriasz, 2009), collision-avoidance pre-emption (Dove et al, 1986; Zhao et al, 1994), traffic simulation (Davis et al, 1980; Coldwell, 1983; Hansen et al, 2013), as well as navigational path planning (Smierzchalski and Michalewicz, 2000; Szlapczynski, 2011).…”

Section: Introductionmentioning

confidence: 99%

An Empirically-Calibrated Ship Domain as a Safety Criterion for Navigation in Confined Waters

Wang

Chin

2015

J. Navigation

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There are limited studies on the use of ship domain as the safety criterion for ship navigation within confined waters. In this paper, a free-form ship domain has been developed empirically for navigation in confined waters. Two individual domains of an asymmetrical polygonal shape have been assumed around the own ship and target ship, and the size of the ship domains is assumed to be dynamically enlarged with increased ship speeds. The required safe distance modelled using the proposed ship domain takes into account dynamic changes in relative bearing and heading. The model is calibrated using the data of vessel movements in Singapore Strait and Singapore Port. An innovative process has been adopted that iteratively adjusts the parameters in the basic ship domain of a stationary ship; a speed function as well as a weight function to maximise the usage of the dataset. The resulting ship domain model compares well with existing ship domains for typical encounters, such as those of Fujii and Coldwell but represents non-typical encounters more effectively than existing models.

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Section: Introductionmentioning

confidence: 99%

An Empirically-Calibrated Ship Domain as a Safety Criterion for Navigation in Confined Waters

Wang

Chin

2015

J. Navigation

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“…Since ship domain is a psychological barrier (Fujii & Tanaka, 1971) and does not have a hard boundary between safety and danger (J. S. Zhao, Wu, & Wang, 1993), researchers suggested to use the fuzzy ship domain with fuzzy boundaries, see (J. Zhao, Tan, Price, & Wilson, 1994;J. S. Zhao et al, 1993), to fit the OOW's judgments.…”

Section: Collision Risk Indexmentioning

confidence: 99%

Ship collision avoidance methods: State-of-the-art

et al. 2020

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“…The first study pertains to fuzzy neural networks, which use fuzzy rules to infer the static and dynamic degrees of danger (Hiraga et al, 1995). The second analytical method uses fuzzy logic to describe an operator's recognition rules for collision avoidance (Hammer and Hara, 1990; Shimada et al, 1991; Zhao et al, 1994). In addition to these methods, a probabilistic framework has been presented for designing and analysing existing Collision Avoidance (CA) algorithms, enabling on-line risk computation for faulty intervention and the consequences of different actions based on Monte Carlo techniques (Jansson and Gustafsson, 2008).…”

Section: Literature Reviewmentioning

confidence: 99%

Optimal Collision-Avoidance Manoeuvres to Minimise Bunker Consumption under the Two-Ship Crossing Situation

2017

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This paper optimises two-ship collision-avoidance manoeuvres accounting for both collision risk and fuel use. A collision-avoidance manoeuvring optimisation model is developed to minimise fuel consumption while assuring ships' operational safety. The model can optimally determine when to begin collision-avoidance actions, how to change courses, and what rudder angles are needed. A quantitative scenario simulation is developed to illustrate the model application. The methodology can be further developed to guide practical ship collision-avoidance manoeuvring decisions made under more operational scenarios. In particular, this research can contribute to the development of computer-aided collision-avoidance operations to improve the safety and energy efficiency of maritime transportation.

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DCPA simulation model for automatic collision avoidance decision making systems using fuzzy sets

Cited by 9 publications

References 5 publications

An Empirically-Calibrated Ship Domain as a Safety Criterion for Navigation in Confined Waters

An Empirically-Calibrated Ship Domain as a Safety Criterion for Navigation in Confined Waters

Ship collision avoidance methods: State-of-the-art

Optimal Collision-Avoidance Manoeuvres to Minimise Bunker Consumption under the Two-Ship Crossing Situation

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