Rail transit AFC ticket card special reader-writer

The invention provides a special reader-writer for rail transit AFC tickets and cards, and relates to the technical field of rail transit equipment. The special reader-writer for the rail transit AFC ticket card comprises a reader-writer, a processor, a storage module, a radio frequency module and a hardware interface are arranged in the reader-writer, the storage module comprises a program memory, a data memory and an operation memory, the storage module is connected with an access module through the processor, and the processor is provided with a watchdog. Under the action of the watchdog, the reader-writer can reset a circuit after accidental crash, so that the reader-writer is restarted, the phenomenon that the reader-writer cannot be used is avoided, meanwhile, the service life of the reader-writer is prolonged under the condition that the storage module of the NANDFLASH nonvolatile solid-state memory is adopted, a loaded SAM card can be independently accessed through the SAM card seat provided by the re