title: Application of improved isochron method in ship’s minimum voyage time weather routing
metadata.name: dc.contributor.author
metadata.value: Wang, Hongbo
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Li, Pengfei
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Xue, Yuanyuan
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Korovkin, Maxim V.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2017-10-12T09:51:03Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2017-10-12T09:51:03Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2017-09
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Wang H., Li P., Xue Yu., Korovkin M. V. Application of improved isochron method in ship’s minimum voyage time weather routing. Vestnik of Saint Petersburg University. Applied Mathematics. Computer Science. Control Processes, 2017, vol. 13, iss. 3, pp. 286–299.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: 10.21638/11701/spbu10.2017.306
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/8514
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Optimal control theory is the core of modern control theory. The development of control theory
  comes from the requirements of the control object. With the continuous progress of social
  science and technology, optimal control theory is widely used for such issues as the minimum
  time problem, the minimum energy consumption problem, the linear quadratic index optimal
  problem, and others. In this paper, a method of calculating the minimum time route of the ship
  using rhumb lines combined with isochrones is proposed. Firstly, a mathematical model of the
  minimum time route is constructed and the ship motion equation is discretized. Secondly, the
  distance between the starting point and the end point is divided into several rhumb segments
  with equal traveling time so that each isochrone corresponds to different rhumb line. Then, N
  parallel lines of equal spacing ΔD are arranged on both sides of each rhumb segment to form 2N
  sub-channels. Stipulate that the ship can only sail within the interval of 2N×ΔD and constrain
  the navigation area in order to find the optimal solution faster. At each unit of discrete time the
  course of the ship remains constant. Select the optimal arrival points on each sub-lane interval
  in the same time to form the local optimal isochrone. After calculating the minimum time of the
  ship’s voyage, the minimum time route is derived using step-by-step recursion. In addition, in
  order to improve the obstacle avoidance capability of the improved isochrone method, the paper
  also proposes the algorithm based on a bitmap image in order to avoid a danger zone which
  may be encountered in the course of navigation, so as to ensure the safe navigation of the ship
  at sea. Finally, the improved isochrone method is applied to the problem of the minimum time
  route of the ship under meteorological conditions. The simulation results in MATLAB show
  that the algorithm can not only find the minimum time route from the starting point to the
  end point and ensure the route is relatively short, but also avoid dangerous areas encountered
  in the course of navigation in time and assure safety of navigation. Refs 16. Figs 9.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Applied Mathematics. Computer Science. Control Processes;Volume 13; Issue 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: improved isochrone method
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: meteorological navigation
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: route optimization
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: algorithm of avoiding the danger zone
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Application of improved isochron method in ship’s minimum voyage time weather routing
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 06-Van.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/8514/1/06-Van.pdf
resources.format: Adobe PDF
resources.size: 672,62 kB