RFID portable class attendance check system and method based on campus one-card-pass

The invention relates to an RFID portable class attendance check system and method based on campus one-card-pass. The system comprises a power module, an input module, a central processing unit, a display module, an indication module, a storage module, an RFID read-write module and a low voltage detection module, wherein the central processing unit, the display module, the indication module, the storage module, the RFID read-write module and the low voltage detection module are connected with the power module. Campus IC cards are combined with the radio frequency identification (RFID) technology, campus card resources are fully used, attendance burdens of teachers are reduced, and the system is small in size and convenient to use. The average achievement of every student can be automatically counted according to the attendance condition of the student in the end of term, manual calculation of teachers is omitted, attendance check and achievement counting integration is achieved, and the system is responsible