| 摘要 |
PURPOSE:To observe a wide-range measurement result in real time at each time of measurement by receiving the position data of other ships measured by the other ship and the data on the state of the sea nearby the ship, and displaying plural wakes formed by this ship and other ships while sailing at the same time differently according to the state of the sea. CONSTITUTION:Plural ships for investigation are used basically and each ship measures its current position and the state (e.g. water temperature, tidal current, water depth, wind direction or wind speed) of the nearby sea. Namely, one ship and other ships sail in a sea area to be investigated at the same time and this ship measures its ship position and the state of the nearby sea and also receive position data and data on the sea states measured by the other ships. The wake TM of this ship and the wakes TS1 - TS6 of other ships are displayed on a CRT in different colors or with different line kinds by spe cific information among measurement items, e.g. temperature width set previous ly for water temperature, and consequently the distribution in an equal- temperature area comes to clear at a glance, so that a wide sea area can be investigated in a short time. |
