Double-frequency RFID tag for clothing management

Abstract

The invention relates to a double-frequency RFID tag for clothing management. The dual-frequency RFID tag comprises a UHF tag antenna, an HF NFC coil antenna and a dual-frequency RFID electronic tag chip. The UHF tag antenna and the HF NFC coil antenna are connected with the double-frequency RFID electronic tag chip, and the UHF tag antenna and the HF NFC coil antenna are connected to work by using one double-frequency RFID electronic tag chip. The double-frequency RFID electronic tag chip has a UHF frequency band and an HF frequency band, the UHF frequency band accords with an ISO18000 6C protocol, and the HF frequency band accords with an ISO15693 protocol. The UHF tag antenna and the double-frequency RFID electronic tag chip form a UHF tag, and the HF NFC coil antenna and the double-frequency RFID electronic tag chip form an HF tag. By means of the double-frequency RFID tag, the double-frequency tag is a double-frequency RFID electronic tag chip integrating a UHF frequency band conforming to an ISO18000 6C protocol and an HF frequency band conforming to an ISO15693 protocol. By using one chip to integrate the electronic tags of two frequency bands, the mutual coordination work of the two frequency bands is realized, and the problems of power supply conflicts and memory read-write conflicts caused by the simultaneous work of the two frequency bands are avoided.

Description

technical field [0001] The invention relates to a dual-frequency RFID tag used for clothing management, and belongs to the technical field of RFID tag design. Background technique [0002] High-frequency tags work by inductive coupling, and the reading distance is relatively short, generally within 20 cm. The high-frequency chip has NFC function, and customers can confirm product information at any time; while UHF tags use electromagnetic waves to work. It can better achieve long-distance and multi-tag reading in complex environments, but it has disadvantages in near-field reading. At this time, high-frequency tags are needed to reflect the advantages of reading in the near-field; RFID tags When used in clothing and other fields, because it needs to be applied in multiple scenarios, in order to meet the application of tags in different scenarios, it is often necessary to use the working frequency band at 13.56Mhz high frequency and the working frequency band at 860~960Mhz ul...

AI Technical Summary

Problems solved by technology

[0002] High-frequency tags work by inductive coupling, and the reading distance is relatively short, generally within 20 cm. The high-frequency chip has NFC function, and customers can confirm product information at any time; while UHF tags use electromagnetic waves to work. It can better achieve long-distance and multi-tag reading in complex environments, but it has disadvantages in near-field reading. At this time, high-frequency tags are needed to reflect the advantages of reading in the near-field; RFID tags When used in clothing and other fields, because it needs to be applied in multiple scenarios, in order to meet the application of tags in different scenarios, it is often necessary to use the working frequency band at 13.56Mhz high frequency and the working frequency band at 860~960Mhz ultra high frequency on one product at the same time frequency tag

[0003] At present, there are several conventional ways to solve the problem of working together with high-frequency and ultra-high-frequency band tags: 1) One product uses two tags, one high-frequency tag and one ultra-high frequency tag. Since two chips need to be matched, the cost Relatively high; 2) Use a dual-frequency chip with a dual-frequency tag, but due to the different design of the tag, it is often only inclined to a single European frequency band or American frequency band

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