【摘要】 为了解决流速仪法测量水轮发电机组流量中多路流速信号的同步测量问题,提出一种现场可编程门阵列(FPGA)与神经元芯片相结合的测量方案。该成果实现了LonWorks现场总线技术和在线可编程技术的优势互补,灵活设定的计数范围和自动换挡的分频次数保证了测量值的准确性,采用状态寄存器的方法减小了神经元芯片控制功能对I/O引脚的依赖,提高了系统的实时性。更多还原

【Abstract】 A new measuring scheme of field programmable gate array (FPGA) with neuron chip is put forward to resolve the synchronization problem of multi-channel signals of the flow velocity in flow measurement of the hydroelectric generating set. By this method, the advantages of LonWorks field bus technology and in-system programmable technology are made to complement each other. The flexibly set counting range and automatic change of frequency can ensure the accuracy of the data. The status register is introduced to reduce the dependence of the control ability of neuron chip on I/O pins, and the real-time performance of the system is improved.更多还原