## 1 Introduction  
In 2006, the International Maritime Organization (IMO) officially confirmed the e-Navigation concept proposed by the International Association of Marine Aids to Navigation and Lighthouse Authorities (IALLA), which aims to form a unified model of maritime information collection, exchange, storage, analysis and visualization shipside and at the shore, so as to enhance the berth-to-berth navigation capability, Maritime safety assurance capability, and Marine environmental protection capability [1]. The ship user, for example, should not only have an electronic navigation chart, an Automatic Identification System (AIS) and information collected by the ship itself but also have historical and real-time meteorological data, dynamic water depth data near the port, navigation safety data and other types of information, so that ship users can judge navigation safety through data collected by themselves and the cloud. E-Navigation is not a thorough subversion or replacement of traditional navigation concepts and methods, but an attempt to optimize the traditional navigation mode by integrating and integrating existing technical tools and maximizing the respective advantagesof man and machine. Compared with the traditional mode of navigation, e-Navigation helps to improve the standard of safe navigation, reduce the collision, stranding and oil spill risk, improve the efficiency of the ship and shore-based supervision, strengthen the quality of the ship's personnel, promote the increase in navigation safety and be conducive to the protection of the marine environment and the management of human resources. European and American countries started early in the study of the e-Navigation Test Beds, and have completed the development of several Test Beds, which provides experience for the study of China. This paper will give a more comprehensive introduction in Section 2.1. The purpose of the development of these Test Beds is to provide maritime users with more comprehensive and perfect services according to the content of the Maritime Service Portfolio (MSP), which is introduced in detail in Section 2.2 of this paper. However, there are still many unsolved problems. For example, the level of maritime safety infrastructure in various countries is uneven, the traffic situation is complex, ship collision accidents occur from time to time [2], the navigation of small ships is difficult to supervise [3], the efficiency of search and rescue emergency needs to be improved [4] and the navigation safety of ships is difficult to guarantee [5]. Maritime departments, ports, ships and other users in all countries need to be able to quickly obtain data such as route information, environmental information, navigation information and emergency management information, to ensure the safety of ships through further analysis. The purpose of this paper is to integrate the advanced experience of the international e-Navigation Test Beds, integrate existing maritime data, unify data standards and structures and provide users with as many services as possible through the fusion and analysis of maritime data. Therefore, this paper develops a multi-source data fusion maritime safety management platform. Considering hydrometeorology, navigation information and risk prevention, a four-layer system architecture is designed to manage and analyze geographic information, marine environment, ship dynamics and other data uniformly on the cloud platform. Users can obtain maritime data in mobile, web and client, and support to display on the electronic chart. The platform improves the efficiency of data exchange between the ship, the shore and other users, facilitates the shore-based facilities for vessel traffic monitoring and management and improves the efficiency of shipping and logistics. This paper gives a brief review of related work and background of the international e-Navigation Test Beds and MSP in Section 2 and discusses the design method of the maritime data security management platform in Section 3.