Design of a Smart Meter Recorder with Mass Storage Based on DL/T645-2007 Protocol

A new software and hardware design which make use of C8051F410 MCU to gather and save the parameter of Smart meter. Research and Analysis the Communication Protocol of DL/T645-2007.On basis of this Protocol .we develop a communication software which is maintained with national standards to exchange data with Smart meter .We also make use of the RS-485 circuit to connect the recorder with the Smart meter . Develop the SPI interfaces in MCU to achieve reading and writing the great capacity SD card and the card has been initialized by FAT16 file system .The active power data , reactive power data and shape data are saved in the SD card together. The experiment showed that the design can gather and save a great number of data exactly and reliably .It can be satisfied with the need of testing and analyzing the power.