Research And Development Of Intelligent Shipborne Terminal For Network Platform Of Marine Instruments

Realizing the networking and intellectualization of ocean observation technology is the mainstream of future research.However,the incompatibility of the sensor bus interface and the diversity of protocol formats result in the complex wiring of ocean observation system,which is not conducive to expansion,maintenance,and upgrading.The design of the intelligent shipborne terminal of the marine instrument network platform is to solve this problem.So it has certain research value and long-term application prospects,which is conducive to the development of Chinese marine scientific research.Based on the researching and analysis of the general intelligent transducer interface standard IEEE1451,this thesis designs the overall system model of the intelligent shipborne terminal of the networked platform of ocean instruments,realizes the design of hardware and software of the shipborne intelligent terminal,constructs a small observation network for scientific research,and finally tests the overall function of the terminal.The main contents and innovations of this thesis include:(1)Referring to the IEEE1451 standard theory,a system model of networked intelligent shipborne terminal applied in the field of ocean observation is constructed.NCAP module and TIM module are designed and implemented.The NCAP module is responsible for data processing,interface communication,and task management.The TIM module is responsible for the underlying sensor data acquisition and transmitter electronic data sheet(TEDS)reading.At the same time,the IEEE1451 core technology TEDS technology has been deeply studied,and two kinds of necessary TEDS are designed and implemented.(2)On the basis of building the overall framework of the system,the terminal hardware and software architecture is designed.Considering power consumption,cost,scalability,flexibility,stability and reliability,the core processors used in NCAP and TIM modules,and sensors used in ocean observation networks,such as temperature and humidity,wind speed and direction,atmospheric pressure and visibility,are selected.Using the Beidou communication system independently developed by our country,the meteorological information and real-time sea conditions in the sea area where the scientific research ship is located are packaged according to the established communication protocol.The packaged data package is then sent to the shore-based command center.It also receives information from the shore-based command center.Finally,a comprehensive display interface is designed for the ship-borne intelligent terminal to provide a reference for the scientific researchers on board and to assist them in marine operations.(3)Video live broadcasting technology is applied to the offshore operation of the scientific research vessel.It is convenient for the researchers of the National Oceanic Laboratory to get real-time information about the offshore operation of the scientific research vessel even if they do not go out with the scientific research vessel.Combined with mobile object detection,face detection and face recognition technology,the network camera is used to record the unconventional personnel entering and leaving the key laboratory of the scientific research ship and key areas.To a certain extent,the work pressure of security personnel has been alleviated.