Research On The Application Of LonWorks Fieldbus In The Monitor And Control System Of Marine Il Tank

With the development of science, people request more about the ship automation, and hope that more intelligent marine control system will be developed. The marine control system with the type of network is the developmental direction, is also the mainstream production that the new ship adoptes. Lon Works fieldbus possesses the advantages of open interface, interoperability and better performance cost ratio. It has been widely adopted in industry control, building automation, data acquisition.This paper discusses the developmental actuality and trend of the marine control system, and sets forth to design the ship network control system with Lon Works. It also introduces the Lon Works technology including the Neuron chip, Neuron C programming language, LonTalk protocol and how to design the control network and so on.Based on the study of LonWorks technology, combining the experiences the author has developed the marine control system. Firstly, the paper discusses the design progress of intelligent node in detail, including the design of hardware and the application program. Secondly, the paper discusses the fixing and debugging progress of control network, including the physical connection, logical installation and network variables' binding of network node. At last, the paper discusses the designing method and operating progress of oil tank monitor and control interface.At present, most of marine control system is distributed control system. With the increasing of marine control objects, it is not able to fit the complicated objects. Appling the LonWorks fieldbus into marine control system may separate and simplify the control objects and improve the system's reliability.