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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。
In order to solve the problem of simultaneous measurement of multichannel flow velocity signals in flow measurement of hydroelectric generating units, a measurement scheme based on Field Programmable Gate Array (FPGA) and neuron chips is proposed. The achievement of LonWorks fieldbus technology and online programmable technology complement each other, the flexible setting of the count range and automatic shift frequency to ensure the accuracy of the measured value, the use of state registers to reduce the neuronal chip Control functions rely on the I / O pins, improve the system’s real-time.