The world trend in ship automation is to integrate the monitoring, intelligent control and systematic management of the instruments and equipments both on bridge and in engine room. The paper presents a design scheme ...The world trend in ship automation is to integrate the monitoring, intelligent control and systematic management of the instruments and equipments both on bridge and in engine room. The paper presents a design scheme of the ship integrated monitoring and operating system based on two layers distributed and redundant computer network. The lower layer network is the field bus network connected mainly by CAN bus; the upper one is the PC local network in TCP/IP protocol, which consisted of a database server, monitoring and operating computers, industrial computers and a set of switches. Distributed schemes are fully applied to both software and hardware. This paper specifically describes the composition, software distribution and redundant technology of the upper local network and gives some important sample codes for the implement of the redundant and distributed design. The technologies here have been proved in the many applications and it may be applied to other industrial fields.展开更多
基于现场总线的配电监控已成为当前船舶电力系统重要的发展方向,有必要开展大型船舶配电监控系统组网技术研究。针对区域配电监控控制器域网络(Controller Area Network,CAN)和现场配电监控CAN网络,通过理论分析和计算,给出网络数据采...基于现场总线的配电监控已成为当前船舶电力系统重要的发展方向,有必要开展大型船舶配电监控系统组网技术研究。针对区域配电监控控制器域网络(Controller Area Network,CAN)和现场配电监控CAN网络,通过理论分析和计算,给出网络数据采样频率、最大长度、传输速率和最大节点数量等网络技术参数选择的依据,为大型船舶配电监控系统的组网设计提供参考。展开更多
基金the Special Doctorial Point Fund of National Education Department of China(1999015103),the Doctor Foundation of Liaoning (001057)and the Outstanding Youth Fund of Dalian City(2001122).
文摘The world trend in ship automation is to integrate the monitoring, intelligent control and systematic management of the instruments and equipments both on bridge and in engine room. The paper presents a design scheme of the ship integrated monitoring and operating system based on two layers distributed and redundant computer network. The lower layer network is the field bus network connected mainly by CAN bus; the upper one is the PC local network in TCP/IP protocol, which consisted of a database server, monitoring and operating computers, industrial computers and a set of switches. Distributed schemes are fully applied to both software and hardware. This paper specifically describes the composition, software distribution and redundant technology of the upper local network and gives some important sample codes for the implement of the redundant and distributed design. The technologies here have been proved in the many applications and it may be applied to other industrial fields.
文摘基于现场总线的配电监控已成为当前船舶电力系统重要的发展方向,有必要开展大型船舶配电监控系统组网技术研究。针对区域配电监控控制器域网络(Controller Area Network,CAN)和现场配电监控CAN网络,通过理论分析和计算,给出网络数据采样频率、最大长度、传输速率和最大节点数量等网络技术参数选择的依据,为大型船舶配电监控系统的组网设计提供参考。
