Computer readable storage medium and radio frequency identification reader adopting medium

A storage medium, radio frequency identification technology, applied in the field of radio frequency tag identification, can solve the problems of long time, missing unrecognized tags, tag conflicts, etc., to achieve the effect of reducing the overall time

Active Publication Date: 2018-03-13
GUANGDONG CHUTIAN DRAGON SMART CARD
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  • Abstract
  • Description
  • Claims
  • Application Information

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 time

Method used

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  • Computer readable storage medium and radio frequency identification reader adopting medium
  • Computer readable storage medium and radio frequency identification reader adopting medium

Examples

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Example Embodiment

[0020] In scenarios such as automatic inventory and settlement of commodities in supermarkets and warehouses, and inflow and outflow of books in libraries and bookstores, readers are used to read electronic labels on commodities and books, so as to complete commodity inventory settlement or book inventory in a short time. Work. like figure 1 As shown, under the condition that the target number M of tags to be read and the unique identifiers UIDs of all tags can be obtained from the system, the following steps are used to realize anti-collision when identifying multiple tags in a short time based on the time slot technology. Label recognition.

[0021] UID acquisition step: the reader acquires the unique identifier UID of the tag to be identified from the system to obtain a UID library storing the unique identifier UID of all the tags to be identified, and records the number of all tags to be identified as M.

[0022] Time slot division step: The reader divides the searched r...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): G06K7/10G06K17/00
CPCG06K7/10019G06K17/0032
Inventor 刘冬生邬亮彭浩毅何云波袁天柱
Owner GUANGDONG CHUTIAN DRAGON SMART CARD
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