To provide an optimum sea route computation device and an optimum sea route computation method capable of automatically carrying out optimum sea route computation for an entire sea route including one or more ranges where a navigation-incapable region exists while suppressing a computation amount.SOLUTION: An optimum sea route computation device includes an input unit, a storage unit, and a computation unit. The storage unit stores data for sea route computation ranges for computing optimum sea routes and data for narrow waterway ranges that are each set beforehand for a part of the range in the sea route computation range, and the sea route computation range and the narrow waterway range include a first range where a vessel is capable of navigating and a second range where the vessel is incapable of navigating. The computation device generates a first sea route by computing the optimum sea route from a departure point to an arrival point by postulating that the narrow waterway range is a first range. Then, when the narrow waterway range is included in the first sea route, the computation device generates a second sea route by computing the optimum sea route to cause the second sea route to pass the first range in the narrow waterway range, taking the second range in the narrow waterway range into consideration regarding the sea route in a portion included in the narrow waterway range in the first sea route and then, connects the first sea route with the second sea route.SELECTED DRAWING: Figure 2
【課題】航行不能領域が存在する領域を含む航路全体の最適航路演算を、演算量を抑制しつつ自動的に行うことができる最適航路演算装置および最適航路演算方法を提供する。【解決手段】最適航路演算装置は、入力器と、記憶器と、演算器と、を備え、記憶器は、最適航路を演算する航路演算領域のデータと、航路演算領域の一部の領域に予め設定される狭水路領域のデータと、を記憶し、航路演算領域および狭水路領域は、船舶が航行可能な第1領域と船舶が航行不能な第2領域とを含み、演算器は、狭水路領域を第1領域とみなして、出発地から到着地までの最適航路を演算することにより第1航路を生成し、第1航路に狭水路領域が含まれる場合、第1航路のうちの狭水路領域に含まれる部分の航路について狭水路領域内の第2領域を考慮して狭水路領域内の第1領域を通過するように最適航路を演算することにより、第2航路を生成し、第1航路と第2航路とを接続する。【選択図】図2
OPTIMUM SEA ROUTE COMPUTATION DEVICE AND OPTIMUM SEA ROUTE COMPUTATION METHOD
最適航路演算装置および最適航路演算方法
2023-10-05
Patent
Electronic Resource
Japanese
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