Design Of Information Network And Control System Of Unmanned Surface Vessel

Since maritime rights and marine environmental issues have become increasingly prominent, the study of USV has attached great importance around the world, and it is also stepping up in China. As an important tool for maintaining maritime rights and detecting marine environmental, USV will be intelligent, standardization and networked. USV is not controlled according to personnel observation, but relied on various devices and sensors installed in the vessel. In order to realize the intelligent control of USV, it’s necessary to fully get all the equipment information on vessel and the environmental parameters around to make the right decisions order. For this purpose, the thesis designs a suitable information network and control system for USV.This thesis is based on a USV by independently researching. The main content is selecting appropriate communication modes to interconnect the various electronic devices on the vessel and build an information network and associated control systems for the USV. The information and control system is combined with NMEA2000network, Ethernet and serial communication. It can obtain real-time information on the USV and send accurate control commands. First of all, the overall structure of the information network and the control system of the USV is designed. According to the different communication protocol, the structure is divided into three parts: serial communication, NMEA2000network, and Ethernet. And then the communication protocol is elaborated. Firstly design the content and format of serial communication agreement, including the NMEA0183protocol implementation principle and the communication with host propulsion system. Then the NMEA2000protocol message composition, message sending and receiving are analyzed. Finally make the content of Ethernet TCP packet, and set the rules of the definition of user data packets, complete data conversion from NMEA2000, serial to Ethernet. In the thesis, the software design of information network and control system, including the interfacial design of USV information integrated processing system and ground station comprehensive monitoring system, is completed using c++programming language. The system realizes the function such as the real-time data acquisition, display, command sending, communication protocol conversion, and using the access database to store data, achieves the effect of remote access, remote control, finally realizes the intelligent and networked of USV.