Design And Implementation Of Remote Data Monitoring System For Ships

Ships occupy a very important position in the transportation system.In recent years,with the development of communication technology,the shipping industry and modern shipbuilding industry are also moving towards the direction of networking and intelligence.The importance of safe navigation and standardized management of ships is also becoming more and more prominent,which has put forward higher requirements for the data monitoring system of ships.Based on IOT technology,this paper explores the application of communication technology in the field of ship remote data monitoring and designs and realizes a remote data monitoring system based on Internet of Vessels,which breaks the situation that it is difficult to interoperate information and save data between different ships and different equipments.The shipboard information collection system is designed for the ship end,the remote data monitoring platform is designed for the remote end,and the remote transmission of data is carried out by a combination of satellite,4G and MANET.The main research contents of this paper include.(1)Systematically investigating the background and current situation of ship remote data monitoring,analysing the main means of current ship communication and the methods of data monitoring,designing a system framework for realising ship data remote monitoring by means of ship networking,and overall dividing the system into three parts:shipboard information acquisition,remote data transmission and remote data monitoring platform.(2)For shipboard information acquisition,a shipboard information acquisition system with embedded Linux as the core is designed to support multi-device and multi-sensor access by means of universal bus or LoRa wireless.(3)For remote data transmission,a combination of satellite network,3/4G network and MANET is used.The MANET network is implemented based on the VDES communication network,and a node movement model that conforms to the actual movement law of the ship is designed.ns-3 simulation platform is used to evaluate the performance of several The performance of several routing protocols was evaluated in terms of packet delivery rate and end-to-end average delay using the ns-3 simulation platform,and it was concluded that the AODV protocol is the most suitable routing protocol for MANET networks.(4)For the remote data monitoring platform,an interface for receiving information uploads from shipboard systems was designed and implemented using MQTT and Kafka.A combination of data forwarding tasks,data processing tasks and persistence tasks were used to implement real-time message alerting and interfacing with the MySQL database.Finally a web service was designed using Django and Ant Design to provide a web interface for the user,in addition to a way to access data via a RESTful API to facilitate further research and processing of the data.