Computer readable storage medium and radio frequency identification reader adopting medium

Abstract

The invention relates to the field of radio frequency tag identification, in particular to a computer readable storage medium and a radio frequency identification reader adopting the medium. A computer program is stored in the medium, and the computer program can be executed by a processor of the radio frequency identification reader. By recording the number m of identified tags in a tag matchingstep, the tag identification process is ended when the number m of the identified tags reaches a value of the number M of all to-be-identified tags, it is guaranteed that unidentified tags cannot be omitted, and overall time of tag identification can be shortened. According to the method of realizing anti-conflict tag identification when multiple tags are identified in a short time based on a timeslot technology, through the three judgments of CRC (cyclic redundancy check), UID matching and tag number self-check, the problems that irrelevant tags are identified by mistake and relevant tags are omitted in the anti-conflict clearing process are avoided to a great extent.

Description

technical field [0001] The invention relates to the field of radio frequency tag identification, in particular to a computer-readable storage medium and a radio frequency identification reader using the medium. There is a computer program stored in the medium, and the computer program can be executed by a processor of the radio frequency identification reader. Background technique [0002] With the rapid development of the Internet of Things, radio frequency identification (RFID, Radio Frequency Identification) technology is widely used in today's field of automatic identification and data collection. At present, the radio frequency identification technology using smart labels is mainly used to identify a specific target in the radio frequency identification area in a short period of time, and in some complex cases, it is necessary to identify multiple different targets in a short period of time, such as supermarkets and warehouses. Automatic commodity inventory and settleme...

AI Technical Summary

Problems solved by technology

However, this method of judging whether all tags are recognized takes a long time on the one hand, and on the other hand, there may be conflicts between multiple tags in the process of searching for multiple times in a row, that is to say, the reader does not recognize the tag after several consecutive searches. When the response signal is received to judge the end of tag recognition, the unrecognized tag will be missed

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