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发明公开
CN102361389A 基于VME总线的多CPU变流器同步控制系统及其同步方法 无效 - 撤回

基于VME总线的多CPU变流器同步控制系统及其同步方法
摘要：
一种基于VME总线的多CPU变流器同步控制系统及其同步方法，该控制系统包含主CPU和若干从CPU，所述的主CPU和从CPU通过VME总线连接，该控制系统还包含与主CPU和若干从CPU分别连接的时钟信号产生电路，时钟信号产生电路产生固定的共用时钟信号，同时触发主CPU和从CPU的外部中断，主CPU和从CPU的计数器同时清零，重新计数，从而实现主CPU的外部中断处理任务和从CPU的外部中断处理任务的同步执行。本发明大大提高了控制系统的控制性能，增强了系统运行的可靠性和安全性。
摘要（英）：

The invention provides a multi-CPU current transformer synchronization control system based on a VME (versa module eurocard) bus and a synchronization method thereof. The control system comprises a main CPU and a plurality of secondary CPUs. The main CPU and the secondary CPUs are connected through the VME bus. The control system also comprises a clock signal generation circuit which is connected with the main CPU and the secondary CPUs respectively. The clock signal generation circuit generates a fixed common clock signal and triggers external interruption processing tasks of the main CPU and the secondary CPUs, counters of the main CPU and the secondary CPUs are cleared, counting is started again, and synchronous execution of the external interruption processing tasks of the main CPU and the secondary CPUs is realized. According to the system and the method in the invention, control performance of the control system is substantially raised, and reliability and security of system operation are enhanced.

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