【摘要】 随着船舶自动化技术的发展,船载电子设备之间的数据通信越来越广泛,船舶设备网络的建立需要统一的传输标准.阐述基于CAN总线的NMEA 2000协议,提出了GPS设备接入NMEA 2000网络系统的连接方法和设备组成,通过分析NMEA 2000协议的数据帧和GPS消息参数群,提出了GPS在不同协议版本条件下语句转换的处理方法.更多还原

【Abstract】 As the fast development of automation techniques,the data communication of electronic equipments on board is more extensive.The unitive transportation standard is necessary in the shipboard device net.The paper introduces the NMEA 2000 protocol based on CAN bus,and puts forward the connection method and build up of GPS receiver that is joined into NMEA2000 network.According to the data frame of NMEA2000 protocol and the parameter group numbers of GPS,the paper advances the method of sentences translation in the condition of NMEA protocol with different version.更多还原