To provide a construction method for an environment potential filed model, capable of automatically adjusting a safety range of different kinds of obstacles so as to approach reality of sailing according to information on the obstacle in a vector electronic chart, and securing safety in sailing of a ship due to the constructed model satisfying demand of collision avoidance of the ship under different conditions.SOLUTION: A construction method for an environment potential field model based on polygon outward equidistance externally expanding method, includes: acquiring data of an electronic chart of a predetermined sea area to obtain a distribution of an obstacle in an environment to be modeled through extraction of the data; constructing a potential field for a rugged polygon of the obstacle with the equidistance externally expanding method; setting parameters to automatically adjust a safety range of obstacles having different attributes; and overlapping potential filed models of the different obstacles with each other to obtain the perfect potential field model of the obstacle.SELECTED DRAWING: Figure 1
【課題】ベクトル電子海図にある障害物についての情報に従って、航海の現実に近づくことができるように異なる種類の障害物の安全範囲を自動的に調整することができ、構築されたモデルが異なる状況での船舶の衝突回避の需要を満たして船舶の航行の安全性を確保できる環境ポテンシャル場モデルの構築方法を提供する。【解決手段】多角形外向き等距離外拡がり法に基づく環境ポテンシャル場モデルの構築方法は、所定の海域の電子海図のデータを取得し、データの抽出を通してモデル化される環境における障害物の分布を得ることと、障害物の凹凸多角形に対してポテンシャル場を等距離外拡がり法で構築することと、パラメータを設定して、異なる属性を有する障害物の安全範囲を自動的に調整することと、異なる障害物のポテンシャル場モデルを重ね合わせて、完全な障害物のポテンシャル場モデルを得ることと、を含む。【選択図】図1
CONSTRUCTION METHOD FOR ENVIRONMENTAL POTENTIAL FIELD MODEL BASED ON POLYGON OUTWARD EQUIDISTANCE EXTERNALLY EXPANDING METHOD
多角形外向き等距離外拡がり法に基づく環境ポテンシャル場モデルの構築方法
2024-08-22
Patent
Electronic Resource
Japanese
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