A UHF RFID reading system and its misreading removal method

Abstract

The invention discloses an ultrahigh frequency RFID identification and reading system and a misreading removing method. The identification and reading system comprises a control host, an ultrahigh frequency RFID reader and an RFID antenna. The control host is connected to the ultrahigh frequency RFID reader through an Ethernet interface or a serial port. The ultrahigh frequency RFID reader is connected to the RFID antenna through a radio frequency feed line. The RFID antenna carries out information transmission with an RFID label through an electromagnetic wave signal. The control host is provided with a parameter learning module and a misreading removing module. The misreading removing method comprises a parameter learning process and a misreading removing process. In the invention, accuracy of the ultrahigh frequency RFID reader to identify and read an object label can be greatly increased and a RFID label misreading problem can be solved.

Description

technical field [0001] The invention relates to a system and a method, in particular to an ultra-high frequency RFID reading system and a method for removing misreading thereof. Background technique [0002] With the rapid development of science and technology, RFID (Radio Frequency Identification, radio frequency identification) technology, as an important branch of the Internet of Things technology, is more and more widely used due to its non-contact, long-distance, and simultaneous reading of multiple tags. However, when UHF RFID technology is applied to specific industries, there are various application conditions and requirements, such as: when entering and exiting the warehouse bayonet type RFID reading equipment to read the tags of incoming and outgoing items, due to the different types of tags There are a large number of items, the reading distance is inconsistent, and there are other item tags in the warehouse, which will lead to the misreading of other items in the...

AI Technical Summary

Problems solved by technology

However, when UHF RFID technology is applied to specific industries, there are various application conditions and requirements, such as: when entering and exiting the warehouse bayonet type RFID reading equipment to read the tags of incoming and outgoing items, due to the different types of tags The quantity is large, the reading distance is inconsistent, and there are other item tags in the warehouse, which will lead to the misreading of other items in the warehouse during the reading process, and then it is impossible to accurately judge the actual label of the item in and out.

At present, this situation is generally dealt with by adjusting the radio frequency power of the antenna, but this method still cannot fundamentally solve the misreading problem

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