RFID reader, RFID reading precision improving method and storage device

A storage device and reader technology, applied in the field of RFID readers, can solve the problems of low recognition rate, long time delay, complicated operation, etc., and achieve the effect of small external interference, strong signal and high reading accuracy

Active Publication Date: 2018-04-03
QINGDAO HAIER SMART TECH R & D CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of low recognition rate, long time limit, long time delay and complicated operation in the wine cabinet/refrigerator appl

Method used

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  • RFID reader, RFID reading precision improving method and storage device
  • RFID reader, RFID reading precision improving method and storage device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example one

[0027] This embodiment proposes an RFID reader, such as figure 1 As shown, the RFID reading chip 11 and the ceramic antenna 12 are included. The reading chip 11 is fixed on the ceramic antenna 12, and the circumference and back of the ceramic antenna 12 are covered with a metal shielding layer 13. The RFID reader of this embodiment uses a ceramic antenna to increase the radiation of electromagnetic signals to the RFID reader space, and by covering the circumference and back of the ceramic antenna with a metal shielding layer, electromagnetic signals can be prevented from going to the back of the ceramic antenna Radiation, that is to say, the working principle of this RFID reader is set externally. By setting it outside the storage device, it is used to detect the electronic label information set on the item taken out or put into it. It is a dynamic detection. When the electronic tag is placed in the storage device with the item, the RFID reader cannot read th...

Example Embodiment

[0030] Example two

[0031] This embodiment proposes a method for improving the accuracy of RFID reading. The hardware module involved in the method includes an RFID reader, such as figure 1 As shown, the RFID reader includes an RFID reading chip 11 and a ceramic antenna 12. The reading chip 11 is fixed on the ceramic antenna 12. The circumference and back of the ceramic antenna 12 are covered with a metal shielding layer 13. The RFID reader When installed and used, it is set on the outside of the storage device. The method for improving the RFID reading accuracy includes the following steps:

[0032] S1. The RFID reader reads the detected electronic tag information, and obtains the code of the electronic tag and counts the number of times the electronic tag is read; when the electronic tag is in the reading range of the RFID reader When it is within, the number of times of reading the electronic tag continuously increases;

[0033] S2. Arrange the reading times of the electronic ta...

Example Embodiment

[0040] Example three

[0041] This embodiment proposes a storage device, such as figure 2 As shown, it includes a door 21, the door 21 is hinged to the box 22, and an RFID reader 1 is provided on the outside of the door 21, such as figure 1 As shown, the RFID reader 1 includes an RFID reading chip 11 and a ceramic antenna 12. The reading chip 11 is fixed on the ceramic antenna 12. The circumference and back of the ceramic antenna 12 are covered with a metal shielding layer 13. By setting it on the outside of the storage device, it is used to detect the electronic tag information set on the removed or put item, which is a dynamic detection. When the electronic tag is placed in the storage device with the item, due to the metal shielding layer The RFID reader cannot read the electronic tag information. The dynamic reading method completes the reading when the item is taken out or put in, and the taking out or reading process is less disturbed by the outside world, and the signal i...

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PUM

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Abstract

The invention discloses an RFID reader, RFID reading precision improving method and storage device. The RFID reader includes an RFID reading chip and a ceramic antenna. The reading chip is fixed on the ceramic antenna. The periphery and the back face of the ceramic antenna are covered with a metal shielding layer. According to the invention, through arranging the ceramic antenna, radiation of electromagnetic signals towards the space of RFID reader can be enhanced. Since the periphery and the back face of the ceramic antenna is covered with the metal shielding layer, radiation of the electromagnetic signals towards the rear side of the ceramic antenna is prevented. Dynamic detection is achieved by adopting the method. When an electronic tag is disposed in the storage device statically along with an item, the RFID reader cannot read the information of the electronic tag. Reading is implemented during the process when the item is taken out or put in according to dynamic detection. Besides, external interference is small during the taking out or putting in process, the signal strength is high and the reading precision is high. Therefore, problems of low reading rate due to built-in arrangement of a reader and adopting of a static reading method and long ageing due to multiple times of reading of a prior reader.

Description

technical field [0001] The invention relates to an RFID reader, a method for improving RFID reading accuracy and a storage device. Background technique [0002] In the application of wine cabinets / refrigerators, the algorithms for wine / foodstuff recognition mainly include image recognition, spectrum recognition, and odor recognition. Complicated operation and other disadvantages. RFID (Radio Frequency Identification) is a non-contact automatic identification technology that uses radio waves to identify objects by attaching microchips and antennas to them. It is widely used in wine cabinets / refrigerators. When RFID is used for identification, when wine After the ingredients are still inside the wine cabinet / refrigerator, since the outer shell of the wine cabinet / refrigerator is made of metal, the inner wall is made of metal, and the distance between the upper and lower shelves of the wine cabinet / refrigerator is narrow, the static reading method (after closing the door , wh...

Claims

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Application Information

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IPC IPC(8): G06K7/00
CPCG06K7/0008
Inventor 徐想李德祥
Owner QINGDAO HAIER SMART TECH R & D CO LTD
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