Design of unmanned ship communication and navigation system based on Beidou+4G communication
In response to the current situation where unmanned ships heavily rely on their communication and naviga-tion systems,and on the basis of leveraging the advantages of electronic chart autonomous route planning technology,fully utilizing the mature and reliable characteristics of 4G network communication,combined with the autonomous and control-lable short message communication function of the BeiDou satellite navigation and positioning system,a unmanned ship autonomous navigation and communication system based on BeiDou short message+4G network communication is designed,It can not only leverage the mature data transmission advantages of stable and reliable communication in 4G networks,but also solve the communication problem of unmanned ships in remote sea areas that cannot be covered by 4G networks.At the same time,the unmanned ship navigation system based on Beidou short message and 4G network communication was veri-fied through actual ship experiments.The experimental results showed that within the 4G network coverage area,both 4G network communication and Beidou short message communication methods met the communication requirements for autonomous and intelligent navigation of unmanned ships;Outside the 4G network coverage area,Beidou short message communication can independently achieve the communication function of unmanned ships to meet autonomous intelligent navigation.