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Anti-collision resource competition method based on label number, mobile reader and readable storage medium

A resource competition and tag quantity technology, applied in the field of mobile readers and readable storage media, can solve the problems of low tag query efficiency and low communication resource utilization, and achieve the effect of maximizing tag query efficiency and improving utilization efficiency

Active Publication Date: 2020-06-26
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the existing reader anti-collision protocol, the present invention ignores the impact of the number of tags in the reader’s query range on the performance of the RFID application system, resulting in low utilization of communication resources and low efficiency of tag query, and provides a solution based on the number of tags The anti-collision resource competition method, mobile reader, and readable storage medium can effectively improve the tag query efficiency of the RFID system and efficiently utilize communication resources

Method used

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  • Anti-collision resource competition method based on label number, mobile reader and readable storage medium
  • Anti-collision resource competition method based on label number, mobile reader and readable storage medium
  • Anti-collision resource competition method based on label number, mobile reader and readable storage medium

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Embodiment 1

[0023] Such as figure 1 As shown, an anti-collision resource competition method based on the number of tags, the method executes the following stages in turn: a competition weight determination stage, a competition weight exchange stage, and a communication resource competition stage;

[0024] Wherein, the competition weight determination stage: each RFID mobile reader estimates the number of RFID electronic tags within the query range; and sets the competition weight of the reader according to the estimated number of RFID electronic tags;

[0025] The competition weight exchange stage: under the condition that the RFID mobile reader polls the server to broadcast the competition weight exchange signal, the RFID mobile reader exchanges and compares weight information with neighbor RFID mobile readers through competition rules; and according to the competition The result of the weight comparison is used to determine whether the reader enters the communication resource competition stag...

Embodiment 2

[0036] Based on the aforementioned anti-collision resource competition method based on the number of tags, this embodiment also provides an RFID mobile reader. The steps of the anti-collision resource competition method implemented by the mobile reader when interrogating electronic tags are as follows:

[0037] The following stages are executed in reincarnation: competition weight determination stage, competition weight exchange stage, communication resource competition stage;

[0038] Wherein, the competition weight determination stage: each RFID mobile reader estimates the number of RFID electronic tags within the query range; and sets the competition weight of the reader according to the estimated number of RFID electronic tags;

[0039] The competition weight exchange stage: under the condition that the RFID mobile reader polls the server to broadcast the competition weight exchange signal, the RFID mobile reader exchanges and compares weight information with neighbor RFID mobile ...

Embodiment 3

[0042] Based on the above-mentioned anti-collision resource competition method based on the number of tags, this embodiment also provides a readable storage medium on which a computer program is stored, and the anti-collision resource competition is realized when the computer program is executed by the processor. The method steps are as follows:

[0043] The following stages are executed in reincarnation: competition weight determination stage, competition weight exchange stage, communication resource competition stage;

[0044] Wherein, the competition weight determination stage: each RFID mobile reader estimates the number of RFID electronic tags within the query range; and sets the competition weight of the reader according to the estimated number of RFID electronic tags;

[0045] The competition weight exchange stage: under the condition that the RFID mobile reader polls the server to broadcast the competition weight exchange signal, the RFID mobile reader exchanges and compares ...

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Abstract

The invention discloses an anti-collision resource competition method based on the number of tags, a mobile reader and a readable storage medium. The method circularly executes the following stages: acompetition weight determination stage, a competition weight exchange stage and a communication resource competition stage. According to the invention, starting from the perspective of optimal allocation of RFID system communication resources; the . A reader determines a competition weight according to the number of the labels in the inquiry range; w. Whether the reader participates in the competition of the communication resources or not is determined by comparing the competition weight with the competition weight of the neighbor reader, and then the reader participating in the competition competes for the communication resources through a certain rule, so that the utilization efficiency of the communication resources is improved, and the label inquiry efficiency of the RFID system is maximized.

Description

Technical field [0001] The invention relates to the technical field of RFID radio frequency identification, and more specifically, to a method for collision avoidance resource competition based on the number of tags, a mobile reader, and a readable storage medium. Background technique [0002] Radio Frequency Identification (RFID) is one of the key technologies supporting the development of the Internet of Things. It has the characteristics of low cost and simple deployment, and is widely used in industries such as smart storage, supply chain management, and smart agriculture. A typical RFID system generally includes multiple RFID mobile readers (readers for short) and multiple RFID electronic tags (tags for short). When readers that are closer to each other use the same communication resources to inquire about tags, the readers may interfere with each other, causing the tags to not be interrogated correctly. This phenomenon is called reader collision. With the explosive growth ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/10
CPCG06K7/10019Y02D30/70
Inventor 李中华何冠男
Owner SUN YAT SEN UNIV