Research On Monitoring And Management Information System Of Unmanned Surface Vehicles Based On Cloud Platform

With the development of marine informatization,especially the implementation of "Digital Ocean" project,a number of information systems for ocean applications have been set up.As one of the new fashion computer technology,cloud technology has brought a great opportunity for the construction of the marine information system,the development of low-cost experiment,improvement of reusability and sharing property of the marine resource information as well as the expansibility of the system.Under this background,this paper proposes a monitoring and management information system for autonomous surface vehicles based on cloud service with the help of cloud platform,which provides some reference for the research of ocean information system.This monitoring and management information system based on cloud platform can be used for remote monitoring,scheduling and management of unmanned surface vehicles in rivers,lakes,ocean and other environment.This system is composed of three parts: the cloud server,the local monitoring station and the user terminal.As the data storage and sharing hub of the system,cloud server provides the services for real-time storage,management and sharing of the data of unmanned surface vehicles.The local monitoring station is the backstage management center,which undertakes the tasks of management of user authorization,the vehicle job and the system operation.The remote user terminal is a user-oriented operating platform,which offers the cloud monitoring services of the unmanned surface vehicle for users.This paper analyzes the disadvantages of the traditional shore-based station monitoring system in detail,and proposes a monitoring and management information system of unmanned surface vehicle based on cloud platform.The main content of this research is shown as follows:Firstly,the whole architecture and composition of the proposed system is introduced in detail.The operation relationship of the various units and the function modules are also studied here.And the software design framework is researched in this part as well.Secondly,the cloud server unit of the system is discussed in follow.The organization structure composes of the communication interface layer,the data preprocessing layer,the task logic layer,the global management layer and the data storage and sharing layer,which is designed based on Tornado framework.The communication interface between the cloud server and the local monitoring station as well as the user terminal is realized in HTTP protocol.The key technology including the high concurrent user access technology,big-data-oriented storage and sharing technology and cross-platform video transmission technology are also considered.Thirdly,the design of the local monitoring station is introduced.The Model-View-Controller(MVC)design pattern is adopted in this unit.The organization relationship of the domain logic,data and user-interface display for the three parts are summarized in detail.The function modules including serial communication,network communication,motion control,parameter display,dynamic drawing,simulation,video transmission and user authorization management are developed according to the design demands.The interactive interface of local monitoring station is also design and completed in this part.Fourthly,the user-oriented platform,which called the remote user terminal is discussed.The architecture is designed following the principle of practicability,friendliness and robustness.And this unit is composed of three parts: the user interface layer,the management layer and the auxiliary tool layer.The key modules such as the 3D scene layout,network communication,graphical user interface,motion control,perspective conversion,global management and auxiliary tool are developed for this unit.The user interactive interface of this unit is designed and realized by Unity 3D.Finally,unit testing is carried out for all the three parts of the system,and the testing results show that all the modules run as expected,and achieve the desired goals.Besides,the integrated experiment for the whole system is also performed in a lake,and the result demonstrate the feasibility and reliability of the system design scheme.