RFID ELECTRONIC SHELF APPARATUS AND METHOD OF DETECTING POISITONS OF TAGS USING THE SAME
First Claim
1. A Radio Frequency IDentification (RFID) electronic shelf apparatus, comprising:
- electronic shelf units stacked and each the electronic shelf unit configured to have a plurality of reader antennas;
a reader configured to recognize the electronic shelf units individually or in a group in order to recognize a tag included in the electronic shelf unit; and
a position detection processing unit configured to group the plurality of reader antennas, included in the electronic shelf unit, and to obtain position information about the electronic shelf unit on which the tag is stacked based on tagging information provided by the reader.
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Accused Products
Abstract
A Radio Frequency IDentification (RFID) electronic shelf apparatus according to the present invention includes electronic shelf units stacked and each configured to have a plurality of reader antennas, a reader configured to recognize the electronic shelf units individually or in a group in order to recognize a tag included in the electronic shelf unit, and a position detection processing unit configured to group the plurality of reader antennas, included in the electronic shelf unit, and to obtain position information about the electronic shelf unit on which the tag is stacked based on tagging information provided by the reader. Accordingly, there are advantages of stability and accuracy in the transmission of information, reduced configuration costs, and efficient store management by solving the shadow region of an electric wave due to the stacking of items within an electronic shelf and the close arrangement of the items.
29 Citations
12 Claims
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1. A Radio Frequency IDentification (RFID) electronic shelf apparatus, comprising:
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electronic shelf units stacked and each the electronic shelf unit configured to have a plurality of reader antennas; a reader configured to recognize the electronic shelf units individually or in a group in order to recognize a tag included in the electronic shelf unit; and a position detection processing unit configured to group the plurality of reader antennas, included in the electronic shelf unit, and to obtain position information about the electronic shelf unit on which the tag is stacked based on tagging information provided by the reader. - View Dependent Claims (2, 3, 4)
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5. A method of detecting a position of a tag in an RFID electronic shelf apparatus including a plurality of electronic shelf units and having a plurality of reader antennas included in each of the electronic shelf units, the method comprising:
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a tag inventory step; a step of determining whether simultaneous recognition for the tag has been generated in the plurality of electronic shelf units; and if, as a result of the determination, the simultaneous recognition for the tag is determined to have been generated in the electronic shelf units, acquiring position information about the tag by comparing counts that the electronic shelf units have recognized the tag. - View Dependent Claims (6, 7, 8)
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9. An RFID electronic shelf unit, comprising:
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a top, a bottom, and lateral faces configured to form an external appearance; at least one bottom reader antenna provided at the bottom; and at least one lateral reader antenna provided in at least one of the top and the lateral faces. - View Dependent Claims (10, 11, 12)
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Specification