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A method and device capable of quickly and accurately inventorying the number of RFID radio frequency tags

A technology of radio frequency tags and tags, which is applied in the direction of cooperative devices, electromagnetic radiation induction, instruments, etc., can solve the problems of long arbitration time and time-consuming, etc., achieve obvious effects, speed up, and reduce repeated transmission of information

Active Publication Date: 2022-02-18
SHANDONG HUAYI MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One is the information transmission between the reader and the host computer, that is, the unique identification code of the tag is repeatedly transmitted, and the host computer needs to compare the results of the transmission multiple times to determine the number of tags in the RF workplace; the second is the reader and the host computer. Repeated multiple anti-collision arbitration identification between tags, which takes a long time due to the long arbitration time

Method used

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  • A method and device capable of quickly and accurately inventorying the number of RFID radio frequency tags
  • A method and device capable of quickly and accurately inventorying the number of RFID radio frequency tags
  • A method and device capable of quickly and accurately inventorying the number of RFID radio frequency tags

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Experimental program
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Effect test

Embodiment 1

[0036] Such as Figure 1-3 shown.

[0037] A method capable of rapidly and accurately inventorying the quantity of RFID radio frequency tags comprises the following steps:

[0038] (1) When the reader receives the inventory command from the host computer: send a reset and power-on command to the tags in the workplace through the radio frequency module and antenna, and the tags in the workplace will convert their own roll call marks into "unrolled", Blind spot markings remain unchanged;

[0039] (2) The reader reads a tag unique identification code in the tag unique identification code list in the memory, and sends a roll call command to the tag in the workplace through the radio frequency module and antenna: if the tag is in the workplace, the tag will send its own The roll call mark is converted to "rolled", the blind spot mark remains unchanged, and the unique identification code is returned to the reader, the reader receives the unique identification code, and the tag uni...

Embodiment 2

[0049] Such as Figure 4 shown.

[0050] A device for counting the number of radio-frequency tags in the workplace, including: a reader-writer and a host computer, the reader-writer includes a RAM memory connected to a microprocessor and a radio-frequency module, and the radio-frequency module communicates with the radio-frequency tags in the workplace through an antenna radio frequency tag wireless communication; the host computer is connected with the microprocessor. After the radio frequency module is connected to the antenna, the radio frequency signal is transmitted to the workplace for data communication with the radio frequency tag, and the interactive data is returned to the microprocessor, and the microprocessor saves the data to the RAM memory;

[0051] The RAM memory is used to save the unique identification codes of all identified tags;

[0052] The reader / writer adopts the following methods to carry out an inventory of the tags in the radio frequency workplace: 1)...

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PUM

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Abstract

A method that can quickly and accurately inventory the number of RFID radio frequency tags, which improves the existing reader-writer inventory process, increases the work method of roll-calling, reduces the number of anti-collision arbitration identifications for tags by the reader-writer, and speeds up the inventory; at the same time In the internal memory of the reader, a "tag pool" for recording the unique identification code information of the tag is added, and the statistical work of the tag information in the RF workplace is completed by the reader, reducing the duplication of information between the reader and the host computer transmission. The present invention is suitable for application occasions such as intelligent bookshelf cabinet, intelligent catering, intelligent freezer, aviation logistics, production line management, etc., especially in the application occasions with more than hundreds of labels, the effect is more obvious.

Description

technical field [0001] The invention relates to a method and device capable of quickly and accurately inventorying the quantity of RFID radio frequency tags, and belongs to the technical field of counting the quantity of RFID radio frequency labels. Background technique [0002] The Internet of things (Internet of things) technology is an important trend in the development of contemporary information technology. It is called the third wave of the world's information industry after computers and the Internet. RFID technology is one of the key technologies of the Internet of things. As an item identification technology, RFID technology makes up for the weaknesses of barcode information that cannot be rewritten, small storage capacity, and poor security. It has wireless non-line-of-sight reading and writing, strong signal penetration, long distance, long service life, and good environmental adaptability. , Multiple tags can be identified at the same time, etc., and have been wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10G06K17/00
CPCG06K7/10108G06K17/0029
Inventor 王伟曾为民李向宏
Owner SHANDONG HUAYI MICRO ELECTRONICS