Design of Feeder Terminal Unit Storage Based on SD Card

In order to record the real-time effective data of the power grid collected by the feeder terminal unit, the large-capacity SD card is used as the storage device, and based on the FatFs file system, the real-time storage of key data of power grid operation is realized through the HC32F4A0 micro-controller control, ADC acquisition module, PHY communication module, FLASH storage module, SRAM cache module and SD card module. The user monitors the data on the PC via the network.