Research On Vessel Scheduling Method River Estuary Based On Digital Channel

The inland river estuary is generally connected to the sea and inline the inland waterway.Due to its proximity to the open sea and convenient transportation,a large number of inland river ports are built along the inland river mouth section.Due to the impact of tides and currents,the channel of the estuary section will be eroded by silt,which will make the channel shallower or even diverted.Because the cost of the dredging estuary channel is high and frequently needed,it is difficult to maintain the coastal non-significant national level project continuity.The rectification has resulted in the complexity of the navigation channel of the general estuary section,the high traffic risk of ships in the waters,the high traffic safety pressure,and the difficulty in dispatching ships into and out of the port.How to use modern information technology to realize the navigation of the ship.At the same time,using intelligent scheduling algorithm to provide auxiliary decision support for the ship's inbound and outbound dispatch is an urgent problem need to be solved.Aiming at the above requirements,combined with "Internet Plus" technology,information technology,and optimized scheduling theory,the thesis proposes a method for ship in and out of the inland river mouth section based on digital dynamic channel.The main research work of the specific implementation is as follows:(1)The dynamic digital channel map design of the inland river mouth section based on Baidu map.By analyzing the characteristics of the navigation channel of the inland river estuary,based on the Baidu map,using the AIS historical data,the navigation channel boundary and the main route of the estuary section are combined with the dynamic contour line of the tidal water depth to form a digital channel map capable of dynamically refreshing the navigable waters of the ship in real time,which is used to support the dynamic control of the inbound and outbound dispatch of the inland river estuary.(2)Establish an inbound and outbound dispatching model for tidal channel vessels based on dynamic digital navigation channels in the inland estuary.Considering the process of entering and leaving the port,such as tidal,mooring,inbound,unloading,and exiting,and the constraints,and the corresponding model modifications are proposed for the characteristics of the port channel in the inland river estuary.Then a complete port scheduling model for the inland river is constructed.(3)The simulated annealing genetic algorithm is used to design an inbound and outbound port dispatching algorithm for inland river mouths,which is used to manage the inbound and outbound ships and avoid congestion in the navigation channel and port.An improved simulated annealing genetic algorithm is used to design a solution algorithm suitable for this model..The cross mutation operator and probability are improved,and the performance of the algorithm is improved.Finally,the effectiveness and rationality of the algorithm are verified by actual data.(4)The design of the inbound and outbound dispatching system of the inland river mouth section based on the digital channel is realized.According to the system requirements,combined with the digital channel,the visualization of the whole dispatching process and the design of the navigation safety warning scheme are completed.Through the functional and performance tests,the effectiveness of the system functions and the availability of the system are clarified.The research results above will provide a new informational management method for the inbound and outbound dispatch of ships in the inland river mouth of digital navigation channels,greatly improve the efficiency of existing ship in and out port dispatching,reduce channel blockage,eliminate accidents and reduce ship navigation.The accident rate.The above research has important theoretical and practical significance.