Radio-frequency tag read-write equipment and positioning method and system

Abstract

The embodiments of the invention provide a piece of radio-frequency tag read-write equipment and a positioning method and system. The data information of a radio-frequency identification tag is collected through the antennas on the radio-frequency tag read-write equipment. The shorter the distance of an antenna from the radio-frequency identification tag is, the larger the actual number of times that the antenna collects the data information of the radio-frequency identification tag is. Thus, the actual number of times that each antenna collects the data information of the radio-frequency identification tag in a preset sampling period is determined. A target antenna is determined from the antennas according to the actual number of collection times corresponding to each antenna, and the coverage area of the target antenna is the area where the radio-frequency identification tag is located. In the embodiment of the invention, the radio-frequency identification tag is not positioned directly according to the data information fed back by the radio-frequency identification tag, and the target antenna nearest to the radio-frequency identification tag is determined according to the actualnumber of times that each antenna collects the data information of the radio-frequency identification tag. Therefore, even if the data signal is broken, the positioning of the radio-frequency identification tag will not be affected.

Description

technical field [0001] The embodiment of the present application relates to the technical field of positioning, and more specifically relates to a radio frequency tag reading and writing device, a positioning method and a system. Background technique [0002] Radio Frequency Identification (RFID, Radio Frequency Identification) technology, also known as radio frequency identification, is a communication technology that can identify specific targets through radio signals and read and write related data without the need for mechanical or optical contact between the identification system and specific targets . At present, radio frequency identification technology is more and more used in the field of positioning technology. [0003] At present, the positioning method based on radio frequency identification technology requires that the person or object to be located needs to carry a radio frequency identification tag, and the distance information fed back by the radio frequency...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a radio frequency tag reading and writing device, positioning method and system, to overcome the possible loss of the distance information signal of the radio frequency identification tag in the prior art during transmission, so that the radio frequency tag read and write The distance information collected by the writing device is not accurate, which leads to the problem of positioning failure

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