Heliostat reference position positioning method based on RFID

The invention provides a heliostat reference position positioning method based on RFID. The method comprises the following steps of 1, reading equipment configuration from a configuration storage region, and building a reference point physical angle mapping table corresponding to a reference point RFID number, 2, heliostat angle initialization: reading angle data before power failure from a powerfailure data storage area for heliostat angle initialization, 3, detecting whether the current position is in a reference point position or not, and if not, executing the step 4, and if so, executingthe step 6, 4, judging the current position area of the heliostat, determining the rotating direction, and executing the step 5, 5, searching for edge positions on two sides of the reference point, reading the RFID number, and executing the step 8, 6, rotating in the positive direction until exiting from the reference point sensing area, and executing the step 7, 7, searching edge positions on twosides of the reference poi