Research On Vehicle Scheduling System For Ship Unloading Operation In Bulk Cargo Port

With the advancement of the global economic integration process,international trade has developed rapidly,and maritime transportation has occupied a leading position in the transportation of international trade.As a hub for maritime transportation,the efficiency of the port directly affects the efficiency of the supply chain.In recent years,due to the rapid growth of bulk cargo transportation,bulk cargo ports are facing serious problems of how to improve the efficiency of loading and unloading operations and reduce the production cost of ports.The unloading operation of a large ship is one of the core businesses of a bulk cargo port.The process of unloading operations involves the dispatching of transport vehicles and the rational allocation of transport vehicles in the unloading operation of ships,which has the effect of reducing the logistics cost of the port and improving the operational efficiency of the port.Very important meaning.At present,China’s bulk cargo port is mainly dominated by manual experience in the dispatching of transport vehicles in unloading operations.This method has problems such as lack of rationality and low efficiency.Therefore,this paper studies the problem of vehicle dispatching in bulk cargo port unloading operation,and proposes a vehicle dispatching system based on multi-agent technology and ant colony algorithm for bulk cargo port unloading.The research results of this paper are as follows:(1)Constructing a multi-agent based bulk cargo port unloading operation scheduling system model.By analyzing the flow of unloading operations in bulk cargo ports and combining the advantages of multi-agent technology in the calculation of distributed systems,a model of bulk cargo port unloading operation scheduling system based on multi-agent is constructed,and the Agent in the model is described in detail.Function and communication method.(2)Constructing a mathematical model for vehicle dispatching in bulk cargo port unloading operations.Through the research on the vehicle dispatching problem in the port,the corresponding mathematical model is established,and the ant colony algorithm and the actual production data of the port are combined to verify the validity of the model and algorithm,and provide decision support for the actual production scheduling of the port.(3)Designing a vehicle dispatching system for bulk cargo port ship unloading operations.Combined with J2EE technology,the vehicle dispatching system of bulk cargo port ship unloading operation was designed from three levels:system architecture system,system function structure and system database structure.The system prototype was realized.