Title:
SYSTEM, METHOD, AND PROGRAM FOR DISTRIBUTING FOOD BY USING BLOCKCHAIN
Document Type and Number:
WIPO Patent Application WO/2021/006506
Kind Code:
A1
Abstract:
A system for distributing food by using a blockchain according to an embodiment of the present invention comprises: a QR code printing device; multiple user terminals capable of recognizing the QR code; multiple nodes that the multiple user terminals can access; a blockchain in which the multiple nodes are registered; at least one processor; and at least one memory. The at least one processor produces a first QR code on the basis of QR data received from a server, and subjects the first QR code to image conversion processing, thereby producing a second QR code. The at least one processor prints the second QR code stored in the memory on an object having a curved surface (food itself) by means of the QR code printing device, and prints the first QR code on at least one of a packaging sheet and a packaging box of the food. When the first or second QR code is recognized by the user terminal, the at least one processor provides the user terminal with food information corresponding to the food via a URL, registers a block including a transaction comprising the food information in the block chain, and connects the block in a hash chain type. The at least one processor transmits the transaction, which has occurred on one of the multiple nodes registered in the blockchain, to the multiple nodes registered in the blockchain such that the transaction is shared by the multiple nodes. The image conversion processing maintains four vertices of the first QR code and deforms lines that connect the vertices into convex types, thereby producing the second QR code that can be QR-recognized even on the object having a curved surface.
Inventors:
LEE KWANG YUL (KR)
JANG MEE RAN (KR)
YOO TAE YEON (KR)
JANG MEE RAN (KR)
YOO TAE YEON (KR)
Application Number:
PCT/KR2020/008260
Publication Date:
January 14, 2021
Filing Date:
June 25, 2020
Export Citation:
Assignee:
LEE KWANG YUL (KR)
MNH SOFT CO LTD (KR)
MNH SOFT CO LTD (KR)
International Classes:
G06Q30/02; G01S19/01; G06K7/14; G06K19/06; G06Q50/10; G08B3/10; G08C17/02; H04M1/725
Foreign References:
| KR20190051321A | 2019-05-15 | |||
| KR101511918B1 | 2015-04-15 | |||
| US20180157946A1 | 2018-06-07 | |||
| KR20180115661A | 2018-10-23 | |||
| KR101943215B1 | 2019-01-28 | |||
| KR102085483B1 | 2020-04-14 |
Attorney, Agent or Firm:
OLIM IP& LAWFIRM (KR)
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