| 摘要 |
PURPOSE:To allow free operation as an operator intends to do in emergency without placing an excessive load on a prime mover by displaying a power-up state varying with time through an information processor on a CRT according to whether the actual number of revolutions of a propeller is within the upper and lower limit range of an operation reference polygonal characteristic graph. CONSTITUTION:The information processor 8 which is applied with pieces of information from a controller 5, driving prime mover 2, generator 3 for propulsion, prime mover 4, propeller tachometer 7, ship speed meter 9, etc., decides on the number of revolutions of an upper and a lower limit propeller corresponding to elapsed time based of upper limit and lower limit lines L1U(T) and L1L(T), L2U(T) and L2L(T)... determined by the operation reference polygonal characteristic graph at intervals of elapsed time. Then, an actual revolution number image or flickering actual revolution number image 14 is displayed on the CRT10 together with a reference revolution number image 13 according to whether the actual number of revolutions of propeller is within the upper and lower limit range or not. Therefore, the free operation is carried out without placing an excessive load on the prime mover normally and as the operator intends to do in emergency such as entry into and departure from a port. |
