RFID tag availability detection device

The utility model discloses an RFID tag availability detection device, which further avoids economic loss caused by charging errors due to the fact that the number of environment-friendly bags which are put into use is inconsistent with the number of environment-friendly bags in a charging system, and ensures the fairness between a user and a service party. According to the technical scheme, the device comprises a portal frame, at least one RFID reader-writer, a sorting assembly, a camera with an image recognition function and an assembly line conveying belt, the assembly line conveying belt is used for placing and conveying the parcels, and the camera with the image recognition function is used for recognizing parcel label numbers on the parcels; the RFID reader-writer is used for identifying the information of the RFID tag in the parcel, and the sorting assembly 3 sorts out the abnormal parcel under the condition that the tag number of the parcel is identified but the RFID tag value is not identified. 本实用新型