Device and method for enhancing read-write capacity of RFID tag and intelligent checking device

A technology of RFID tags and capabilities, applied in antenna supports/installation devices, electromagnetic radiation induction, instruments, etc., can solve problems such as time-consuming, laborious, unreachable, and complex device structures, and achieve technical bottlenecks and small field strength differences , easy to read and write effect

Inactive Publication Date: 2018-08-21
李卫星
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Having to disassemble the bundled items and read them one by one becomes time-consuming and laborious, which makes the application of RFID technology lose the convenience
Researching and solving batch reading has always been an important research project of RFID application technology. Although many methods and devices have been disclosed, they are still far from meeting the needs of practical applications, and the structure of the device is complex and low efficiency is still the main problem. Existence phenomenon

Method used

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  • Device and method for enhancing read-write capacity of RFID tag and intelligent checking device
  • Device and method for enhancing read-write capacity of RFID tag and intelligent checking device
  • Device and method for enhancing read-write capacity of RFID tag and intelligent checking device

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Such as Figure 1-3 As shown, the device for enhancing the read-write ability of RFID tags includes at least one RFID reader-writer antenna 1 and at least one RFID read-write tag 2, and the RFID reader-writer antenna 1 and the RFID read-write tag 2 are respectively arranged on two Between the reflectors 3 parallel to each other, the radiation beam direction of the RFID reader antenna 1 is perpendicular to any reflector 3 , and the RFID read-write tag 2 is not close to the RFID reader antenna 1 and any reflector 3 . The radiated waves passing through the RFID reader antenna 1 irradiate the reflecting plate 3 approximately vertically, approximately forming total reflection, and making the reflected wave and the incident wave perform positive superposition to achieve an enhanced effect. At the same time, because the RFID reader antenna 1 is sandwiched between the parallel reflectors 3, the reflected wave is reflected twice by the opposite reflector, superimposed twice, and...

Embodiment 2

[0048] Such as Figure 4-8 As shown, this embodiment is mainly aimed at the specific embodiment that the device for enhancing the reading and writing ability of RFID tags is applied to the intelligent inventory device based on UHF RFID technology.

[0049] The intelligent inventory device based on UHF RFID technology in this embodiment includes a metal box 4 with an inner cavity, the front side of the metal box 4 has an opening 41 communicating with the inner cavity, and the upper and lower ends of the metal box 4 respectively form reflectors 3. The opening 41 of the metal box 4 is provided with a non-metallic liner 5 that can be drawn and located in the inner cavity. Interlayers 6 are formed between the inner sides of the upper and lower ends of the metal box 4 and the outer sides of the non-metallic liner 5, and the interlayer 6 At least one RFID reader antenna 1 is arranged inside, and at least one RFID read-write tag 2 is arranged inside the non-metallic liner 5 .

[0050...

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Abstract

The invention relates to a device and method for enhancing the read-write capacity of an RFID tag and an intelligent checking device. The problem that an existing RFID tag is poor in read-write capability is solved. The device enhancing the read-write capacity of the RFID tag comprises at least one RFID reader-writer antenna and at least one RFID read-written tag which are arranged between two mutually parallel reflection plates respectively; the radiation beam direction of the RFID reader-writer antenna is perpendicular to any reflection plate, and the RFID read-written tag is not close to the RFID reader-writer antenna or any reflection plate. The device has the advantages that total reflection is approximatively formed because radiation waves of the read-write antenna are approximatively perpendicular to a metal conductor plate; reflection waves and incident waves are superposed in the forward direction to achieve the enhancing effect, the electromagnetic wave radiation power density is multiplied, the field intensity difference is small, and therefore the tag is easy to read and write; batch dense tags which are close to one another are also successful and fast read and written, and the stability of system acquisition data is improved.

Description

technical field [0001] The invention belongs to the technical field of wireless radio frequency equipment, and in particular relates to a device, a method and an intelligent inventory device for enhancing the reading and writing capabilities of RFID tags. Background technique [0002] The application of RFID technology for item management realizes convenience and intelligence, and its convenience is mainly reflected in the information reading of bundled items. The so-called clustered items refer to more items clustered together, with a large number and denser items. When large items are bundled, due to the large size of the items, the size of the tag antenna is relatively large, and the spacing is also large. This method is easier to read tags, which is also the most widely used method of RFID technology. However, RFID technology is facing more technological bottlenecks in the application of small items. First of all, due to the small size of the small items, the size of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/10H01Q1/22
CPCG06K7/10356H01Q1/2216H01Q1/2225
Inventor 李卫星
Owner 李卫星
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