Speed estimating apparatus for vessel |
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| 申请号 | JP2221084 | 申请日 | 1984-02-09 | 公开(公告)号 | JPS60166820A | 公开(公告)日 | 1985-08-30 |
| 申请人 | Mitsubishi Electric Corp; | 发明人 | TACHIKI MASAAKI; KOJIMA TOSHIAKI; | ||||
| 摘要 | PURPOSE:To estimate the speed in real time with a speed estimating apparatus by inputting the engine power of own vessel and the wind direction and velocity data thereinto in real time. CONSTITUTION:The engine power 4 detected with an engine power output meter 3 and the wind direction and velocity 6 detected with an anemoscope 5 are converted with an S/D converter 7 from synchro to digital and inputted into a speed estimating apparatus 8, which holds engine power 10- speed curves 11 corresponding to the displacement 9 of own vessel. The engine power - speed curve 12 previously inputted into the speed estimating apparatus 8 indicate the speed in the carlm condition and the accuracy of the estimated speed can be improved by taking account of the influence of wind. The variation in the speed due to effect of wind can be estimated by the approximation formula as the increment of the power generally necessary for holding a specified speed. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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