KR20100097527A - Rfid system for refrigerator - Google Patents

Rfid system for refrigerator Download PDF

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Publication number
KR20100097527A
KR20100097527A KR1020090016512A KR20090016512A KR20100097527A KR 20100097527 A KR20100097527 A KR 20100097527A KR 1020090016512 A KR1020090016512 A KR 1020090016512A KR 20090016512 A KR20090016512 A KR 20090016512A KR 20100097527 A KR20100097527 A KR 20100097527A
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KR
South Korea
Prior art keywords
rfid
rfid tag
refrigerator
article
unit
Prior art date
Application number
KR1020090016512A
Other languages
Korean (ko)
Inventor
윤대성
Original Assignee
주식회사 하이스마텍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 하이스마텍 filed Critical 주식회사 하이스마텍
Priority to KR1020090016512A priority Critical patent/KR20100097527A/en
Publication of KR20100097527A publication Critical patent/KR20100097527A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07701—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction
    • G06K19/07703—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction the interface being visual
    • G06K19/07705—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction the interface being visual the visual interface being a single light or small number of lights capable of being switched on or off, e.g. a series of LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/08—Sensors using Radio Frequency Identification [RFID]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The present invention relates to an RFID system for a refrigerator, and provides an RFID system for a refrigerator that records additional information on a recordable RFID tag and turns on a light emitting unit when searching for an article, thereby easily managing and locating the article stored in the refrigerator. The present invention for this purpose is provided with a light emitting unit RFID tag capable of reading and writing; At least one antenna installed on an inner wall of the refrigerator; And an RFID terminal for recording additional information including article information on the RFID tag, reading identification information of the RFID tag through the at least one antenna, and generating and transmitting a control signal of the light emitting unit. do. According to the above configuration, the present invention can easily locate the article, and thus can effectively use the refrigerator, and at the same time, it is possible to reduce the waste factor by purchasing the article.

Description

RFID system for refrigerators {RFID system for Refrigerator}

The present invention relates to an RFID system for a refrigerator, and more particularly, to an RFID system for a refrigerator, which records additional information on a recordable RFID tag and emits a light emitting unit when searching for an article, thereby easily managing and locating the article stored in the refrigerator. .

In general, RFID (Radio frequency identification) system is a system that can obtain the information of the article by using a tag (tag) attached to the article wirelessly, high recognition rate, contactless recognition media, linkage with other communication networks, high Due to the advantages of scalability, the scope of application of logistics, distribution, and food is expanding.

On the other hand, refrigerators are becoming larger due to changes in consumer electronics manufacturing technology and consumer consumption patterns. Furthermore, refrigerators have been developed into intelligent devices that provide various user convenience functions in conjunction with IT technology.

In particular, in recent years, RFID systems have been applied to determine the existence and shelf life of items being stored without opening the door of the refrigerator.

However, such a conventional RFID system is limited in use because it provides only fixed information according to a tag attached in advance, and since the user does not know the actual position of the article, when a user puts a lot of items in the refrigerator mixed, It is often difficult to find a desired article.

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide an RFID system for a refrigerator that can easily grasp the location and related information of an article stored in the refrigerator.

The present invention for achieving the above object is an RFID tag having a light emitting unit and capable of reading and writing; At least one antenna installed on an inner wall of the refrigerator; And an RFID terminal for recording additional information including article information on the RFID tag, reading identification information of the RFID tag through the at least one antenna, and generating and transmitting a control signal of the light emitting unit. do.

Preferably, the RFID tag includes a communication unit for communicating with the RFID terminal through a tag antenna, a light emitting unit that is turned on according to the control signal, a memory unit for storing the additional information and identification information, and the tag antenna. Determine whether the received information matches the identification information or the additional information stored in the memory unit, perform communication with the RFID terminal, turn on the light emitting unit according to the control signal received from the RFID terminal, and request for recording. And a controller for controlling the stored additional information to be stored in the memory unit.

 Preferably, the controller may control the light emitting unit to blink at a predetermined time period.

Preferably, the RFID terminal comprises: an input unit for inputting additional information to be recorded on the RFID tag and item information to be searched; a display unit for displaying additional information received from the RFID tag and displaying a search screen of the article; And a communication unit for communicating with the RFID tag through the at least one antenna, an RFID tag corresponding to the input search object, and transmitting a control signal of the light emitting unit to the corresponding RFID tag, and inputting the additional information. It may include a control unit for controlling to be recorded in the RFID tag.

Preferably, the RFID terminal may further include an output unit connected to an external printer to output article information and additional information of the RFID tag.

Preferably, the RFID terminal can identify the position of the RFID tag according to the strength of the signal received from the antenna arranged in a grid form inside the refrigerator.

The RFID system for a refrigerator according to the present invention records additional information of an article on a recordable RFID tag and emits a light emitting unit when searching for an article, so that not only management of the article stored in the refrigerator but also easy to locate can be used efficiently. There is an effect that can reduce the waste factor by purchasing goods.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing a configuration of a refrigerator RFID system according to an embodiment of the present invention, Figure 2 is a perspective view showing a state in which the refrigerator RFID system according to an embodiment of the present invention mounted on the refrigerator.

The RFID system 10 communicates with the RFID tag 200 through the antenna 101 to record additional information on the RFID tag 200 and to control light emission of the RFID tag 200, and a light emitting unit. And a RFID tag 200 provided and recordable.

The RFID system 10 may be integrated with the refrigerator 300 or may be configured as stand-alone.

Here, at least one antenna 101 is provided. As shown in FIG. 1, the antenna 101 is installed on an inner wall surface of the refrigerator 300, that is, inside the freezing unit 310 and the refrigerating unit 320, and FIG. 2A. As shown in, it is preferable that a plurality of grids are installed to distinguish the teeth inside the refrigerator.

In addition, the RFID terminal 100 is preferably disposed in the door of the refrigerator 300, as shown in Figure 2b, the RFID tag 200 as shown in Figure 2a any position of the article 500 Is attached to.

RFID  Record additional information in tag and control light emission

3 is a block diagram showing a detailed configuration of the RFID terminal of FIG.

The RFID terminal 100 reads the identification information and the additional information of the RFID tag 200 through at least one antenna 101 and records the desired additional information in the RFID tag 200, and the position of the article 500. The light emission of the RFID tag 200 is controlled to easily grasp the mark.

More specifically, the RFID terminal 100 includes an input unit 110 to which a user's setting is input, a controller 120 for recording additional information on the RFID tag 200 and generating a light emission control signal, and an RFID tag 200. The communication unit 130 communicates through the antenna 101, the display unit 140 displaying the retrieved information, and the output unit 150 outputting the retrieved information through an external device.

The input unit 110 receives additional information to be recorded in the RFID tag 200 and article information to be searched. Here, the additional information includes information of the article 500 to which the RFID tag 200 is attached.

The controller 120 controls to record the additional information input through the input unit 110 to the RFID tag 200 through the communication unit 130. That is, the controller 120 records additional information about the article 500 to which the recordable RFID tag 200 is attached or the article 500 to be attached to the RFID tag 200.

This additional information includes item information for identifying the item and is not included in the information recorded at the time when the item 500 with the RFID tag 200 is shipped, for example, the price of the item, Expiration date, first storage date, etc.

In addition, when a search target item is input through the input unit 110, the controller 120 transmits a code and information corresponding to the article 500 to the RFID tag 200, and receives a response from the RFID tag 200. Receive and identify the article 500.

Here, the controller 120 controls the display unit 140 to display the identification information and the additional information about the search target article 500.

In addition, when a response is received from the plurality of antennas 101, the controller 120 identifies the position of the RFID tag 200 according to the strength of the received signal. To this end, when the plurality of antennas 101 are provided, the control unit 120 is preferably provided with a switching function so that independent communication can be made through each antenna.

Here, the plurality of antennas 101 are arranged in a lattice form inside the refrigerator 300. For example, as shown in FIG. 2A, the plurality of antennas 101 are arranged in each compartment on the inner side of the refrigerator 300 and have a similar height. It is preferably arranged at the inner front of the door, i.e. at the rear of the door.

That is, the controller 120 determines the approximate position of the article 500 partitioned according to the arrangement of the plurality of antennas 101 even without the door of the refrigerator 300 being opened.

In addition, the control unit 120 transmits a light emission control signal to the RFID tag 200 to emit the RFID tag 200 so that the user can easily determine the actual position of the article 500.

The communication unit 130 performs communication with the RFID tag 200 through at least one antenna 101. Here, the communication unit 130 sequentially communicates by the control unit 120 when there are two or more antennas 101.

The display unit 140 displays a search screen for a user to search for an item in the refrigerator 300, and displays additional information received from the RFID tag 200 identified by the controller 120.

The output unit 150 is connected to an external printer 400 and selectively outputs article information and additional information received from the RFID tag 200.

Emitting part  Equipped and recordable RFID  tag

4 is a block diagram showing a detailed configuration of the RFID tag of FIG.

The RFID tag 200 includes a tag antenna 210, a communication unit 220 that communicates with the RFID terminal 100 through the tag antenna 210, and a controller that controls a response according to a request of the RFID terminal 100. 230, a light emitting unit 240 that emits light according to the control signal of the RFID terminal 100, and a memory unit 250 storing additional information to be recorded.

The tag antenna 210 is mounted inside the RFID tag 200.

The communication unit 220 performs communication with the RFID terminal 100 through the tag antenna 210. When a signal for identifying the corresponding RFID tag 200 is received from the RFID terminal 100 while maintaining a reception standby state Is activated.

The controller 230 determines whether the information received by the communication unit 130 that is waiting to be received through the tag antenna 210 matches the identification information or additional information stored in the memory unit 250, and if it matches, communicates with the RFID terminal 100. Activate the communication unit 220 to perform.

In addition, the control unit 230 controls the lighting of the light emitting unit 240 according to the light emission control signal received from the RFID terminal 100, it is to control to repeatedly flash to clearly indicate the position of the article 500. desirable.

In addition, the control unit 230 receives a recording request from the RFID terminal 100, and receives additional information and controls to store in the memory unit 250. Here, the additional information is recorded by dividing items and contents.

The light emitting unit 240 may be turned on under the control of the control unit 230 by the control signal received from the RFID terminal 100, and may blink at regular intervals in order to be better identified by the user, and may be an infrared LED.

The memory unit 250 is a recording medium capable of recording, and stores additional information transmitted from the RFID terminal 100 and identification information recorded at the time of first shipment.

The operation of the RFID system 10 for a refrigerator according to the embodiment of the present invention configured as described above will be described.

First, when a recordable RFID tag 200 is attached to an article 500 to be stored in the refrigerator 300, the RFID terminal 100 reads the corresponding information from the RFID tag 200 and displays the information on the display unit 140. When the additional information not recorded through the input unit 110 is input, the input additional information is transmitted to the RFID tag 200 and recorded in the memory unit 250.

On the other hand, when the RFID tag 200 is not attached to the article 500, the RFID terminal 100 receives the additional information including the article information associated with the article 500 to the recordable RFID tag 200 RFID tag The RFID tag 200 stores the received additional information in the memory unit 250.

In addition, when the article 500 to which the RFID tag 200 to which the additional information is recorded is stored in the refrigerator 300, and the article to be stored is to be checked, through the display unit 140 of the RFID terminal 100. When the article is searched for, the RFID terminal 100 transmits the input article information, and the RFID tag 200 attached to the article 500 among the RFID tags 200 waiting for reception responds.

In this case, the RFID terminal 100 receives the information of the corresponding article from the RFID tag 200 and provides it through the display unit 140 so that a user can check it. Here, the RFID terminal 100 may also determine the approximate location of the article 500 according to the strength of the signal received through the plurality of antennas 101.

By such an operation, the RFID system 10 records information of a product desired by a user to more effectively manage the product, thereby preventing diseases through the expiration date, and reducing redundant purchase costs.

In addition, when the user wants to check the actual position of the article 500 by opening the door of the refrigerator 300, searching for the article through the RFID terminal 100 and selecting the positioning, the RFID terminal 100 corresponds The control signal of the light emitting unit 240 is transmitted to the RFID tag 200, and the light emitting unit 240 is turned on or repeatedly blinked according to the received control signal of the RFID tag 200.

By such an operation, the RFID system 10 can easily determine the location of the item desired by the user and efficiently use the space of the refrigerator.

In addition, the RFID terminal 100 outputs to the printer 400 connected through the output unit 150 when a user wants to refer to the contents of the found article.

By this operation, the user can make a list of items or use them as reference information of the household account book.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art.

1 is a configuration diagram schematically showing an RFID system for a refrigerator according to an embodiment of the present invention,

2 is a perspective view illustrating a state in which a refrigerator RFID system according to an embodiment of the present invention is mounted in a refrigerator,

3 is a block diagram showing a detailed configuration of the RFID terminal of FIG.

4 is a block diagram showing a detailed configuration of the RFID tag of FIG.

Explanation of symbols on the main parts of the drawings

10: RFID system 100: RFID terminal

101: antenna 110: input unit

120: control unit 130: communication unit

140: display unit 150: output unit

200: RFID tag 210: Tag antenna

220: communication unit 230: control unit

240: light emitting unit 250: memory unit

300: refrigerator 310: freezer

320: refrigerator 400: printer

Claims (6)

An RFID tag having a light emitting unit and capable of reading and writing; At least one antenna installed on an inner wall of the refrigerator; RFID terminal for recording additional information including article information in the RFID tag, and reads the identification information of the RFID tag through the at least one antenna to generate and transmit a control signal of the light emitting unit; system. The method of claim 1, The RFID tag, A communication unit for communicating with the RFID terminal through a tag antenna; A light emitting unit which is turned on according to the control signal; A memory unit for storing the additional information and the identification information; Determine whether the information received through the tag antenna matches the identification information or the additional information stored in the memory unit, and perform communication with the RFID terminal, and turn on the light emitting unit according to the control signal received from the RFID terminal. And a control unit controlling to store the recording request additional information in the memory unit. The method of claim 2, The control unit RFID system for a refrigerator, characterized in that for controlling the light emitting unit to blink at a predetermined time period. The method of claim 1, The RFID terminal, An input unit for inputting additional information to be recorded on the RFID tag and article information to be searched; A display unit displaying additional information received from the RFID tag and displaying a search screen of the article; A communication unit which communicates with an RFID tag through the at least one antenna; And a controller for identifying the RFID tag corresponding to the input search target article, transmitting a control signal of the light emitting unit to the corresponding RFID tag, and controlling the input additional information to be recorded in the RFID tag. RFID system for use. The method of claim 4, wherein The RFID terminal further comprises an output unit connected to an external printer to output article information and additional information of the RFID tag. The method of claim 1, The RFID terminal is a RFID system for a refrigerator, characterized in that for identifying the position of the RFID tag in accordance with the strength of the signal received from the antenna arranged in a grid form inside the refrigerator.
KR1020090016512A 2009-02-26 2009-02-26 Rfid system for refrigerator KR20100097527A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101589733B1 (en) * 2015-09-29 2016-01-28 (주)나인마케팅 Cold storage system
KR101632542B1 (en) * 2015-12-22 2016-06-21 송수한 Cosmetics management system and operating method thereof
JP2018527539A (en) * 2015-05-04 2018-09-20 アリババ・グループ・ホールディング・リミテッドＡｌｉｂａｂａ Ｇｒｏｕｐ Ｈｏｌｄｉｎｇ Ｌｉｍｉｔｅｄ Method, system, scanning device, terminal and encoder for monitoring product quality assurance period
KR20180131818A (en) * 2017-06-01 2018-12-11 국윤상 Tag system
CN109341191A (en) * 2018-09-14 2019-02-15 长虹美菱股份有限公司 A kind of combined refrigerator module position recognition methods
CN113915945A (en) * 2021-06-30 2022-01-11 海信（山东）冰箱有限公司 Refrigerator and control method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018527539A (en) * 2015-05-04 2018-09-20 アリババ・グループ・ホールディング・リミテッドＡｌｉｂａｂａ Ｇｒｏｕｐ Ｈｏｌｄｉｎｇ Ｌｉｍｉｔｅｄ Method, system, scanning device, terminal and encoder for monitoring product quality assurance period
JP2021103076A (en) * 2015-05-04 2021-07-15 アリババ・グループ・ホールディング・リミテッドＡｌｉｂａｂａ Ｇｒｏｕｐ Ｈｏｌｄｉｎｇ Ｌｉｍｉｔｅｄ Method, system, scanning device, terminal and encoder for monitoring product quality guarantee period
KR101589733B1 (en) * 2015-09-29 2016-01-28 (주)나인마케팅 Cold storage system
WO2017057808A1 (en) * 2015-09-29 2017-04-06 (주)나인마케팅 Article storage system having location identifying function
KR101632542B1 (en) * 2015-12-22 2016-06-21 송수한 Cosmetics management system and operating method thereof
KR20180131818A (en) * 2017-06-01 2018-12-11 국윤상 Tag system
CN109341191A (en) * 2018-09-14 2019-02-15 长虹美菱股份有限公司 A kind of combined refrigerator module position recognition methods
CN113915945A (en) * 2021-06-30 2022-01-11 海信（山东）冰箱有限公司 Refrigerator and control method thereof

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