NAVIGATION MONITORING DEVICE, NAVIGATION MONITORING METHOD, AND NAVIGATION MONITORING PROGRAM

• Main Authors: USUI KENTA, ITO SHINJI, SATO ATSUYA, WATABE ISAMU, FUJIMOTO HIROSHI, IKEDA TAKAO
• Format: Patent
• Language: English; Japanese
• Published: 13.12.2022
• Subjects: EQUIPMENT FOR SHIPPING; GYROSCOPIC INSTRUMENTS; INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PERFORMING OPERATIONS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; SIGNALLING; SURVEYING; TESTING; TRAFFIC CONTROL SYSTEMS; TRANSPORTING

To precisely evaluate whether a ship is sailing along a sea route.SOLUTION: A storage section 2 stores zone information 4 indicating zones 11-13 generated by dividing a sea route area 10 having a predetermined width along a sea route into polygonal shapes with respect to a sailing direction. A processing section 3 identifies the zone 12 where a sailing ship 20 is positioned among the zones 11-13 based on a current position of the sailing ship 20. The processing section 3 outputs evaluation information to evaluate whether the sailing ship 20 is sailing along the sea route based on the relation between a ground course direction of the sailing ship 20 and the identified zone 12.SELECTED DRAWING: Figure 1 【課題】船舶が航路に沿って航行しているかを精度よく評価する。【解決手段】記憶部２は、航路に沿った所定幅の航路領域１０を航行方向に対して多角形の形状に分割することで生成された区画１１～１３を示す区画情報４を記憶する。処理部３は、航行中の船舶２０の現在位置に基づいて、区画１１～１３の中から航行中の船舶２０が位置する区画１２を特定する。処理部３は、航行中の船舶２０の対地針路の方向と、特定された区画１２との関係に基づいて、航行中の船舶２０が航路に沿って航行しているかを評価する評価情報を出力する。【選択図】図１