Design And Implementation Of Communication Network Scheme For A 10,000-ton Maritime Ship

With the growing economic strength of our country,the party and the state attach great importance to the strategic deployment of the maritime power,including carrying out life assistance,maritime safety supervision,Maritime Command and management in the East China Sea and the South China Sea,cracking down on various illegal activities at sea,and safeguarding China’s maritime rights and interests.The development of maritime patrol ships is faced with good development opportunities.The existing 1000 ton maritime patrol ships have made great contributions,but at present,there are several common problems: due to the low tonnage,the ability to fight against severe sea conditions is limited,and it is unable to carry out ocean missions;there are few means of system connectivity,offshore communication depends on the mobile network of operators,and microwave is used where the mobile base station cannot cover,but micro Wave communication will also be restricted by distance,which will affect the ability to carry out tasks in the high seas;the low configuration of communication equipment of kiloton maritime patrol ships will affect the formation command and comprehensive command ability of maritime ships.it is necessary to build a comprehensive capability as soon as possible and adapt to the implementation of the global sea area.A new type of 10,000-ton maritime ship for maritime emergency response tasks.Based on the demand survey of a 10,000-ton maritime ship communication network,It is determined that the communication network is composed of a maritime service network,a navigation support network and a daily support network.The technologies to be developed for the communication network include: IP address allocation,multicast routing,quality of service(QOS),etc.The overall architecture draws on the theoretical basis of the military information network system,adopts the idea of service-oriented architecture technology and the separation of business,control,and bearer,and adopts a "four-tier,two-sided" architecture on the technical level.Through in-depth research on the overall architecture of the system,the basic part of the three networks adopts a unified technical system to build a bearing platform,so that all business systems are uniformly carried by the IP system.Based on the business requirements,the network architecture of the basic part of the three networks,the routing protocols of the LAN and WAN,and VLAN division are designed.Clarify the functions,performance,internal and external interfaces of the three subnet systems,complete the plan design of each subsystem,and select the equipment used in the plan.Parameter configuration by setting up the environment,it is verified that the 10,000-ton maritime ship communication network plan is reasonable and feasible.The communication network solution satisfies requirements for network bearability of different service subsystems,different access modes,and different types of services.Through the use of service classification,traffic monitoring,queue scheduling,bandwidth control,and hierarchical QOS policies,services such as refined traffic control and end-to-end reliable transmission are implemented on demand.The program achieved the expected design goals and played a guiding role in the implementation of the subsequent projects.