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Anti-collision method based on cluster competition, mobile reader, readable storage medium

A reader and anti-collision technology, applied in the field of RFID radio frequency identification, can solve the problems of low tag query efficiency and large reader loss, and achieve the effect of maximizing tag query efficiency, improving efficiency and reducing loss.

Active Publication Date: 2021-07-13
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 problem of low tag inquiry efficiency in the existing RFID system and the large loss of readers when competing for communication resources, the present invention proposes an anti-collision method based on clustering competition, a mobile reader, and a readable storage medium. The method can realize hierarchical competition for communication resources, improve tag query efficiency, and reduce loss of readers when competing for communication resources

Method used

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  • Anti-collision method based on cluster competition, mobile reader, readable storage medium
  • Anti-collision method based on cluster competition, mobile reader, readable storage medium
  • Anti-collision method based on cluster competition, mobile reader, readable storage medium

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Embodiment 1

[0029] Such as figure 1 As shown, an anti-collision method based on clustering competition, each round of execution includes the stage of competing for the cluster head reader, the stage of inter-cluster communication resource competition, the stage of intra-cluster communication resource competition and the stage of reader changing clusters:

[0030] Wherein said competitive cluster head RFID mobile reader stage: the RFID mobile reader competes with the cluster head RFID mobile reader by randomly sending competition signals to each other under the synchronization of the server broadcasting the cluster head competition signal, and each reader is to the cluster head Competition; the reader that successfully competes for a cluster head is a cluster head reader, and the reader that fails to compete for a cluster head is a non-cluster head reader; the RFID mobile reader that becomes a cluster head broadcasts cluster information to readers within the communication range, and receive...

Embodiment 2

[0048] Based on the above-mentioned anti-collision method based on clustering competition, this embodiment also provides a mobile RFID reader, and the steps of the anti-collision method implemented by the mobile reader when inquiring about electronic tags are as follows:

[0049] Each round of execution includes the stage of competing for the cluster head reader, the stage of inter-cluster communication resource competition, the stage of intra-cluster communication resource competition and the stage of reader changing clusters:

[0050] Wherein said competitive cluster head RFID mobile reader stage: the RFID mobile reader competes with the cluster head RFID mobile reader by randomly sending competition signals to each other under the synchronization of the server broadcasting the cluster head competition signal, and each reader is to the cluster head Competition; the reader that successfully competes for a cluster head is a cluster head reader, and the reader that fails to comp...

Embodiment 3

[0055] Based on the above-mentioned anti-collision method based on clustering competition, this embodiment also provides a readable storage medium on which a computer program is stored, and the steps of the anti-collision method realized when the computer program is executed by a processor are as follows :

[0056] Each round of execution includes the stage of competing for the cluster head reader, the stage of inter-cluster communication resource competition, the stage of intra-cluster communication resource competition and the stage of reader changing clusters:

[0057] Wherein said competitive cluster head RFID mobile reader stage: the RFID mobile reader competes with the cluster head RFID mobile reader by randomly sending competition signals to each other under the synchronization of the server broadcasting the cluster head competition signal, and each reader is to the cluster head Competition; the reader that successfully competes for a cluster head is a cluster head read...

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Abstract

The invention discloses an anti-collision method based on cluster competition, a mobile reader, and a readable storage medium. The anti-collision method includes the following stages in each round of execution: the stage of competition for cluster head RFID mobile readers, inter-cluster communication Resource competition stage, intra-cluster communication resource competition stage, RFID mobile reader cluster change stage. From the perspective of optimal allocation of communication resources in the RFID system, the invention firstly determines the cluster head reader, which competes for the communication resources of the cluster on behalf of the cluster, and the readers in the cluster compete for the communication resources of the cluster again. In this way, hierarchical competition for communication resources is realized, the efficiency of competing for communication resources is improved, the utilization efficiency of communication resources is also improved, and the tag query efficiency of the RFID system is maximized.

Description

technical field [0001] The present invention relates to the technical field of RFID radio frequency identification, and more specifically, relates to an anti-collision method based on clustering competition, a mobile reader, and a readable storage medium. Background technique [0002] Radio Frequency Identification (RFID) is widely regarded as one of the most promising information technologies in the 21st century, and it is also a key technology supporting the development of the Internet of Things. The system built using RFID technology is cheap, easy to deploy, and has strong environmental adaptability. It is widely used in supply chain management, intelligent access control, intelligent warehouse and other industries. A typical RFID system generally includes components such as RFID readers (referred to as readers), servers, RFID electronic tags (referred to as tags), and middleware. When readers using the same communication resources inquire about tags at the same time, t...

Claims

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Application Information

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