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RFID tag reading method for mass data

An RFID tag, massive data technology, applied in the field of electronic information, can solve the problems of many reader requests and too large amount of data returned by the tag.

Inactive Publication Date: 2016-07-06
青海城市云大数据技术有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The above binary search algorithm has problems such as too many requests from the reader and too much data returned by the tag for the reading of massive data.

Method used

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  • RFID tag reading method for mass data
  • RFID tag reading method for mass data
  • RFID tag reading method for mass data

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Embodiment Construction

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] In RFID radio frequency identification system, anti-collision technology is an important research content. In view of the current situation that the existing binary search anti-conflict algorithm is not efficient in reading massive data tags, this paper analyzes the characteristics of the existing management systems (such as warehouse management systems, library management systems, etc.) that the number of tags is massive data and that the tag encoding is regular. Based on the unique characteristics, a method for reading RFID tags for massive data is proposed. Based on the coding law of massive data tags in the management system and the idea of ​​the existing binary search algorithm, this method proposes a multi-tree search...

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Abstract

The invention relates to a method for reading RFID (radio frequency identification) tags for mass data. The method specifically comprises the following steps of enabling a reader to send instructions to all tags; when one bit of the tags has a conflict, enabling the reader to send 2<1> instructions 1 and 0 to identify the tags; when two bits of the tags have the conflict, enabling the reader to send 4(2<2>) instructions 00, 01, 10 and 11 to identify the tags; and when N bits of the tags have the conflict, enabling the reader to send all 2<N> instructions for the conflict bits of the tags, so as to respectively identify the tags. The invention aims at providing the method for reading the RFID tags for mass data, the number of request times is effectively reduced, and the tag identifying speed is improved.

Description

technical field [0001] The invention relates to the technical field of electronic information, in particular to a mass data-oriented RFID tag reading method. Background technique [0002] Radio Frequency Identification (RFID) technology is a non-contact automatic identification technology. Its basic principle is to use the spatial coupling transmission characteristics of radio frequency signals to realize automatic identification of target objects. Usually, all electronic tags working in the same RFID system have the same working frequency band. When there are multiple electronic tags within the range of the reader, and at the same time, multiple electronic tags send information to the reader, there will be mutual interference of information, so that the reader cannot correctly identify the information of the electronic tag, so There is a conflict of RFID electronic tags. The key problem of anti-collision algorithm research is to solve how to quickly and accurately identif...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K17/00
Inventor 何泾沙张航赵斌豆陪陪
Owner 青海城市云大数据技术有限公司
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