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An inventory method capable of reading the tid number of an electronic tag

A technology of electronic tags and signs, applied in the field of radio frequency identification, can solve the problems of low efficiency and large workload.

Active Publication Date: 2022-02-22
南京杰思微电子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the number of tags is small, you can manually select the EPC number to be inventoried on the reader, and then choose to read the TID area to obtain it. Reading the TID number is inefficient and requires a lot of work, so it is necessary to design a new inventory method to quickly obtain the TID number

Method used

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  • An inventory method capable of reading the tid number of an electronic tag

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] Such as figure 1 As shown, an inventory method that can read the TID number of the electronic tag includes the following steps:

[0022] S1, the reader sends the Select command to set the inventory flags of all electronic tags to A; this command is mainly to select the electronic tags, set or change the flags of the tags. After the tag receives the SELECT command from the reader-writer, it sets its own state as specified in the SELECT command, but does not return any data to the reader-writer. The electronic tag is an RFID electronic tag.

[0023] S2. The reader / writer sends a Query comma...

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PUM

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Abstract

The invention discloses an inventory method capable of reading the TID number of an electronic tag. The reader / writer sends an ACK command to the electronic tag. The ACK command consists of a command field and a random number selected as the minimum value within the preset range ( That is, the 16-bit random number RN16 sent by the electronic tag whose random number is 0) is composed of RN16; after the electronic tag receives the ACK command, if the command field is parsed out to be 01, it will reflect the EPC number of the electronic tag to the reader; If the parsed command field is 10, reflect the TID number of the electronic tag to the reader; if the parsed command field is 11, reflect the EPC number and TID number of the electronic tag to the reader. This method can simultaneously feed back the TID number of the tag to the reader-writer when the reader-writer sends an inventory command.

Description

technical field [0001] The invention relates to an inventory method capable of reading TID numbers of electronic tags, belonging to the technical field of radio frequency identification. Background technique [0002] RFID radio frequency identification technology is currently widely used in society, the main application areas are logistics, warehouses, smart ID cards, highway tolls and so on. A typical UHF RFID system usually includes an RFID reader and multiple electronic tags. The RFID reader sends a read command to the electronic tag to read the electronic product code (Electronic Product Code, EPC) in the electronic tag. number, and then upload the EPC number to the background system to complete the information confirmation of the assets corresponding to the EPC number. [0003] The EPC number is unique for each electronic tag. At the same time, there is another tag identification number TID (Tag Identifer) inside the electronic tag. The TID number is the ID card of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/10
CPCG06K7/10
Inventor 章梁晴汤颢李畅张培金忠达民权喻洋
Owner 南京杰思微电子技术有限公司