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Wireless tag reading device and control method

A technology of a wireless tag and a reading device, which is applied in the field of wireless tag reading device and control, and can solve the problems such as the decrease of reading accuracy.

Active Publication Date: 2022-04-19
TOSHIBA TEC KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, when the wireless tag reading device arranges items overlapping or when the items are made of metal, the radio waves may be affected by the items and the reading accuracy may decrease.

Method used

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  • Wireless tag reading device and control method
  • Wireless tag reading device and control method
  • Wireless tag reading device and control method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0066] figure 1 It is an explanatory diagram showing an example of the product registration system 1 according to the first embodiment. The product registration system 1 is a system for reading various information from a wireless tag 20 attached to a product 10 . The product registration system 1 includes a POS (Point Of Sales) terminal 30 , a wireless tag reading device 40 , an antenna driving device 50 , and an antenna 60 .

[0067] The wireless tag 20 is, for example, a tag such as an electronic tag, an IC tag, an RFID tag, or an RF tag. The wireless tag 20 transmits and receives information stored in the storage medium of the wireless tag 20 through short-range wireless communication. For example, the wireless tag 20 stores tag information in a storage medium. The tag information is, for example, information such as a product code that can identify the product 10 to which the wireless tag 20 is attached. When the wireless tag 20 receives radio waves for reading out inf...

no. 2 example

[0141] Next, a second embodiment will be described. In addition, differences from the first embodiment will be mainly described, and components having the same functions as those in the first embodiment will be assigned the same names and symbols as those in the first embodiment, and descriptions thereof will be omitted.

[0142] it's here, Figure 10 It is an explanatory diagram for explaining the product registration system 2 according to the second embodiment. Figure 11 It is a block diagram showing an example of the characteristic functional configuration of various devices included in the product registration system 2 according to the second embodiment. The product registration system 2 according to the second embodiment is different from the first embodiment in that it does not have the antenna driving device 50 but has a plurality of antennas 60a. In the first embodiment, the wireless tag reading device 40 moves the antenna 60 by the antenna driving device 50, reads ...

no. 3 example

[0146] Next, a third embodiment will be described. In addition, differences from the first embodiment will be mainly described, and components having the same functions as those in the first embodiment will be assigned the same names and symbols as those in the first embodiment, and descriptions thereof will be omitted.

[0147] it's here, Figure 12 It is an explanatory diagram for explaining the product registration system 3 according to the third embodiment. Figure 13 It is a block diagram showing an example of the characteristic functional configuration of various devices included in the product registration system 3 according to the third embodiment. The product registration system 3 according to the third embodiment is different from the first embodiment in that it has an antenna 60b that moves in the vertical direction and an antenna driving device 50b that moves the antenna 60b in the vertical direction.

[0148] The antenna driving device 50b according to the third...

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Abstract

The invention discloses a wireless tag reading device and a control method, which can determine whether the read information is information read from a wireless tag located inside a specified area. The wireless tag reading device includes: an input control part, extraction part, storage control part and judgment part. The input control unit receives an input of a signal obtained by converting radio waves received from an antenna for receiving radio waves from the wireless tag. The extraction unit extracts the phase of the radio wave received by the antenna from the signal received by the input control unit. The storage control unit causes the storage medium to store the phase of the radio wave extracted by the extracting unit corresponding to a receiving position of the radio wave received by the antenna. The determination unit determines whether or not the wireless tag that transmitted the radio wave is located inside a predetermined area based on the amount of change in the phase stored in the storage medium.

Description

[0001] This application claims the priority of the Japanese application with the filing date of December 13, 2017 and the application number JP2017-239034, and cites the content of the above application, which is incorporated herein by reference in its entirety. technical field [0002] Embodiments of the present invention relate to a wireless tag reading device and a control method. Background technique [0003] Conventionally, there is disclosed a technique for reading information on an item from a wireless tag such as an RFID (Radio Frequency IDentification: Radio Frequency Identification) tag attached to an item placed in a predetermined area. [0004] In such a technology, in order to prevent information from being read from a wireless tag attached to an item placed outside a predetermined area, the RSSI (Received Signal Strength Indicator: Received Signal Strength Indicator) of the radio wave sent to read the wireless tag is adjusted. signal strength indicator) value. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B5/00H04B17/00G06K7/10H04B5/48
CPCH04B17/00G06K7/10415H04B5/77G01S13/84G06K7/10009G06K7/10366G06Q20/208G06K19/0723
Inventor 鈴木茂晃
Owner TOSHIBA TEC KK
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