The shipbuilding industry is accelerating its intelligent process in a world where artificial intelligence, big data, Internet of Things, cloud computing are experiencing rapid development and wide adaptation in various industries. Today's intelligent ships can be roughly divided into six modules: intelligent navigation, intelligent hull, intelligent cabin, intelligent energy efficiency, intelligent cargo management, and intelligent integration platform. This paper targets intelligent energy efficiency and develops a practical software system for energy efficiency monitoring and management. An HMI-friendly integrated system of data monitoring, acquisition, analysis, storage and backup running on the Windows platform, this design uses Visual C#.NET as a development tool and conducts class-based object-oriented programming. The software adopts the MODBUS-RTU protocol and the NEMA-0183 protocol to conduct software-hardware data communication and stores data in the SQL server database. In order to ensure the security of ship data, the system backups both hardware and software data: RAID disk array technology on the hardware level and on the software level synchronous replication which remotely synchronizes data to shore-based databases through 4G networks and which performs a second backup to facilitate the monitoring operation of shore personnel. Also the speed optimization module of the system processes and conducts analysis of the collected data and arrives at an optimal speed that improves energy efficiency and reduces emission.
The shipping industry, while making considerable progress in recent decades, is also a major polluter in the transportation industry and a large contributor of greenhouse gases. In order to curb environmental pollution caused by ship operations, in order to effectively control the pollution damage caused by ship operations to the global environment, the International Maritime Organization (IMO) officially incorporated rules on ship energy efficiency into the MARPOL Annex VI at the 62nd Environmental Conference, making technical emission reduction measures (such as EEDI) and operational emission reduction measures (such as SEEMP) mandatory for the first time. Since then, topics of ship energy efficiency and ship-related data collection mechanisms have been discussed in various environment conferences. In 2016, the 70th session of IMO's Marine Environment Protection Committee (MEPC) adopted an amendment to the ship' fuel consumption data collection system, which went into effect on March 1, 2018. According to the amendments, ships weighing 5000GT and above shall formulate a fuel consumption data collection plan in accordance with what's stipulated in Part II of the SEEMP Guidelines before December 31, 2018. Such is the backdrop of the day that the international community, government authorities, and industry organizations, shipping companies all seek to improve energy efficiency management. And "Intelligent energy efficiency management system" has emerged as a popular trend in ship application development.