In this paper, a successfully studied and developed master - slave muld - microcomputers control system based on PC - BUS for hollow spindle fancy yarn spinning machine, mainly Its overall scheme, software and hardwar...In this paper, a successfully studied and developed master - slave muld - microcomputers control system based on PC - BUS for hollow spindle fancy yarn spinning machine, mainly Its overall scheme, software and hardware construction, is introduced. Spinning experiments show that the system achieves satisfactory result. This system can solve the diftkultles of mechatronical fusion between domestic hollow splndk fancy yarn spuming muchine and its microcomputer control technology.展开更多
IEEE 1588标准为新一代智能变电站基于网络的测量和控制系统提供了一种完全基于通信网络的精密时钟协议(Precision Time Protocol,PTP)。该协议支持冗余主钟,并且对于主钟之间的动态切换有比较详尽的规定,但是却没有关于多端口冗余的从...IEEE 1588标准为新一代智能变电站基于网络的测量和控制系统提供了一种完全基于通信网络的精密时钟协议(Precision Time Protocol,PTP)。该协议支持冗余主钟,并且对于主钟之间的动态切换有比较详尽的规定,但是却没有关于多端口冗余的从钟的描述。文章利用PTP的现有技术,提出了一种基于IEEE 1588多端口冗余的从钟同步系统设计方法,实验结果表明,该方法能够快速、择优在从钟之间动态切换,最大限度地保证系统时钟同步的精度和可靠性。展开更多
文摘In this paper, a successfully studied and developed master - slave muld - microcomputers control system based on PC - BUS for hollow spindle fancy yarn spinning machine, mainly Its overall scheme, software and hardware construction, is introduced. Spinning experiments show that the system achieves satisfactory result. This system can solve the diftkultles of mechatronical fusion between domestic hollow splndk fancy yarn spuming muchine and its microcomputer control technology.
文摘IEEE 1588标准为新一代智能变电站基于网络的测量和控制系统提供了一种完全基于通信网络的精密时钟协议(Precision Time Protocol,PTP)。该协议支持冗余主钟,并且对于主钟之间的动态切换有比较详尽的规定,但是却没有关于多端口冗余的从钟的描述。文章利用PTP的现有技术,提出了一种基于IEEE 1588多端口冗余的从钟同步系统设计方法,实验结果表明,该方法能够快速、择优在从钟之间动态切换,最大限度地保证系统时钟同步的精度和可靠性。