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Method and system for counting labels

A tagged and unlabeled reply technology, applied in the field of communication, can solve the problems of large idle time slots, large difference between the number of groups and the number of tags, etc., and achieve the effect of reducing idle time slots and improving inventory efficiency

Active Publication Date: 2012-11-28
苏州医疗器械产业发展集团有限公司
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Problems solved by technology

[0029] In view of the problem in the related art that there is a large difference between the number of groups and the number of tags in the radio frequency identification system, a large number of idle time slots occur, the present invention provides a tag inventory method and system to solve at least one of the above problems

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  • Method and system for counting labels
  • Method and system for counting labels
  • Method and system for counting labels

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Embodiment Construction

[0052] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0053] image 3 is a flow chart of a tag counting method according to an embodiment of the present invention. like image 3 As shown, the label inventory method includes:

[0054] Step S302: After there is no tag reply time slot (that is, an idle time slot), the tag in the counting state receives a successful confirmation command from the reader, wherein the successful confirmation command carries a parameter value;

[0055] Step S304: Each tag adjusts the counter value according to the parameter value.

[0056] In related technologies, when there is a large difference between the number of groups and the number of tags in the radio frequency identification system, there will be a large number of...

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Abstract

The invention provides a method and a system for counting labels. According to the method, when a label replay time slot does not exist, the labels in a counting state receive a success confirmation instruction from a reader, wherein the success confirmation instruction carries parameter values; and each label adjusts a counter value according to the parameter values. According to the technical scheme provided by the invention, idle time slots can be reduced, and the counting efficiency is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a label counting method and system. Background technique [0002] In practical applications of passive radio frequency identification (Radio Frequency Identify, referred to as RFID), in many cases there is one reader corresponding to multiple electronic tags in the radio frequency field. When the reader counts multiple electronic tags at the same time, there will be channel contention and collision, and the electronic tags cannot send the information to the reader correctly. Therefore, certain mechanisms need to be adopted to avoid collisions or reduce collisions. [0003] In the existing International Standardization Organization (ISO) 18000-6, Class A and Class C use the slotted ALOHA algorithm, while Class B uses the Binary Tree algorithm to solve the collision problem. Both slotted ALOHA and Binary Tree are based on the time division multiple access method, and the algori...

Claims

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Application Information

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IPC IPC(8): G06K7/00
CPCG06K7/10029
Inventor 王立
Owner 苏州医疗器械产业发展集团有限公司
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