Intelligent control strategy of ship stowage based on expert system

Based on analysing the multiple hierarchy control strategy with the combination of reverse inference and inference, the control rules of the loading position, loading turn and loading capacity, restrictive condition and realization principle of ship stowage and discharge were presented.Through the control of ship buoyancy and strength, the ballast water rate and discharging ability of ship could be increased to ensure the equivalence level of ship ballast water and cargo operation during ship loading, the strength of ship could satisfy the requirement of cargo operation, ship stowage plan, loading and discharging turns could be ensured.Calculation results of real ship show that the method provides the property indices in every step during cargo operation, such as the loading order, time and buoyancy of ship, etc, confirms ship stowage plan and operation procedure quickly and reasonably, improves the efficiency and avoids the blindness during ship stowage.