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The international RFID Standards Organization launched the C1G2 Standard

the international RFID standards organization EPCglobal recently launched a standard called class 1, generation 2 (C1G2)

this standard specifies the communication protocol between RFID tags and readers operating in the ultra-high frequency (UHF), i.e. 860 ~ 960MHz frequency range. C1G2 labels in test batches have been shipped, and standard products in production batches will be available in the third quarter of this year

c1g2 provides a specification that is faster, safer, globally recognized, and ultimately cheaper to deploy. It also provides a royalty free framework for all major technology products (including chips, readers, labels, printers, etc.), which helps to promote the adoption of RFID and reduce costs. This standard has been recognized by Europe and North America, and China is expected to approve C1G2 standard before the end of the year. C1G2 will increase the label reading speed in the United States to about 1500 times per second (Europe has simple and convenient operation, 600 times per second), while the current label reading speed is 100 ~ 300 times

c1g2 also improves the security of labels. C1G2 standard has the function of password protecting read access and permanently locking memory content, and the length of password is increased from 8 bits to 32 bits

c1g2 adopts a complex anti-collision algorithm, which greatly improves the reader's ability to read a large number of tags at one time in the reading area. With the adoption of this algorithm and spread spectrum technology, readers can selectively communicate with different tags at acceptable distances and different frequencies. C1G2 specification also solves the problem of interference between readers. In open space, if u wants to change this situation, the reading distance of HF can reach 10 ~ 20 feet. C1G2 standard defines three different modes or reader types: single reader mode, which is only used when there are no other readers within the kilometer radius of the fixture with a small experimental force; Multi reader mode, deployed in an environment with 10 or fewer readers within a 1 km radius; Dense reader mode, used in an environment with 50 or more readers within a radius of 1 km

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