Design of High-Speed Data Acquisition System Based on LabVIEW

In response to the construction requirements of electromagnetic interference monitoring equipment for substations, a high-speed data acquisition system with matching specifications is designed. LabVIEW language is employed to establish the upper computer data acquisition system. The principles of PXIe and Aurora transmission protocols, as well as the control characteristics of DDR3 SDRAM storage, are investigated. A human-machine interaction interface is provided to realize data acquisition, storage, various waveform displays, and data monitoring. Save the large capacity of real-time data to the PC. The system achieves an analog bandwidth of each channel ≥100MHz, synchronous continuous sampling rate ≥250MSa/s, total channel transmission rate ≥8GB/s, and continuous storage space ≥4TB. Practical operation demonstrates that the system's data acquisition process is stable and reliable, meeting the design requirements. This research has achieved a high-speed data acquisition function based on LabView and FPGA multi-channel signal synchronous acquisition system and delay acquisition function, which has certain application value and promotion space.