Electronic chart information display device and electronic chart information display method

摘要

[Problem] To provide an electronic sea chart information display device which allows an operator to efficiently access maritime information without being perplexed by the display of high-density and large volume maritime information. [Solution] An ECDIS includes an electronic sea chart information storage unit, an AIO storage unit, an AIO change management unit, and a display unit. The electronic sea chart information storage unit stores electronic sea chart information. The AIO storage unit stores an AIO associated with the electronic sea chart information. The AIO change management unit manages the reset date of the AIO. The display unit displays the electronic sea chart information while changing the display mode of the AIO on the basis of the reset date of the AIO. Specifically, the display unit displays only the AIO that is updated and satisfies a prescribed condition, and adds a caption (32a) of "updated" thereto.