| 摘要 |
<p>PURPOSE:To obtain invariably accurate information on the bow azimuth by providing receiving antennas for a worldwide position measurement system at two positions of a ship body, measuring those installation positions at intervals of time, and smoothing and correcting data obtained by a bow azimuth arithmetic means and a turning speed measurement means for the ship. CONSTITUTION:The whole bow azimuth measuring instrument is controlled by using an arithmetic controller 10 composed of a microprocessor. Namely, received signals from the receiving antennas provided to the bow 2 and stern 3 of the ship 1 are received by the GPS receiver 11 of the worldwide position measurement system to find the absolute positions of the bow 2 and stern 3, which are outputted to the controller 10 to compute the bow azimuth based on of longitude and latitude information and also smooth the latent data with past data. Further, a ring laser gyrocompass 12 and a turning speed detecting device 13 which uses laser light to detect the turning speed, which is sent to the controller 10 to display the bow direction based on the output, thereby knowing the turning quantity of the ship 1 with high accuracy.</p> |
