KR20160121121A - Electronic shelf label tag, electronic shelf label server and color data transmitting method of electronic shelf label system - Google Patents

Electronic shelf label tag, electronic shelf label server and color data transmitting method of electronic shelf label system Download PDF

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Publication number
KR20160121121A
KR20160121121A KR1020150050667A KR20150050667A KR20160121121A KR 20160121121 A KR20160121121 A KR 20160121121A KR 1020150050667 A KR1020150050667 A KR 1020150050667A KR 20150050667 A KR20150050667 A KR 20150050667A KR 20160121121 A KR20160121121 A KR 20160121121A
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KR
South Korea
Prior art keywords
color data
color
electronic price
data
price display
Prior art date
Application number
KR1020150050667A
Other languages
Korean (ko)
Inventor
여동협
Original Assignee
주식회사 솔루엠
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.)
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Publication date
Application filed by 주식회사 솔루엠 filed Critical 주식회사 솔루엠
Priority to KR1020150050667A priority Critical patent/KR20160121121A/en
Publication of KR20160121121A publication Critical patent/KR20160121121A/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
    • G06K19/077—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
    • G06K19/07707—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 display, e.g. LCD or electronic ink

Abstract

According to an embodiment of the present invention, a color data transmitting method of an electronic shelf label system comprises the steps of: generating first color data based on original color data; generating second color data on an area except a space where the first color data exists; generating color data by compressing the first color data and the second color data; and transmitting the color data. When a display unit of an electronic shelf label tag is implemented as a color display, an amount of data transmitted to the electronic shelf label tag from an electronic shelf label server can be significantly reduced, thereby preventing a decrease in system performance caused by transmitting a massive amount of color data.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic price indicator, an electronic price display server, and an electronic price display system,

The present invention relates to an electronic price indicator, an electronic price display server, and a color data transmission method of an electronic price display system.

An electronic shelf label (ESL) system is a system for displaying product information including price information of a product in a retail industry such as a mart or a department store through an electronic price indicator. The electronic price display server includes an electronic price display server, A display repeater (for example, a gateway), and a plurality of electronic price indicators (e.g., electronic tags) connected to the electronic price display repeater through a wireless network.

Here, the electronic price indicator may include a display unit for displaying product information, and the display unit may be implemented as a monochrome display capable of displaying only monochrome information or a color display capable of displaying color information.

However, when the display unit of the electronic price indicator is implemented as a color display, the amount of data to be transmitted from the electronic price display server to the electronic price indicator increases. In addition, when the electronic price display server transmits data to the electronic price indicator through wireless communication, the performance of the entire electronic price display system can be greatly affected due to the transmission of the color data.

In this connection, Patent Document 1 described in the following prior art document discloses a differential frame input method of an electronic paper display device.

Korean Published Patent Application No. 2009-0070422 (published on July 1, 2009).

There is a need in the art to reduce the amount of data transmitted from the electronic price display server to the electronic price indicator when the display portion of the electronic price indicator is implemented as a color display.

In order to solve the above problems, an embodiment of the present invention provides an electronic price display server.

An electronic price display server according to an embodiment of the present invention includes a communication unit for performing wired communication with an electronic price display repeater, a database for storing product information including color information, An encoder for generating color data to be transmitted to the display repeater, and a control unit for controlling the color data generated by the encoder to be transmitted to the electronic price display repeater through the communication unit.

Here, the encoder generates the first color data based on the product information, generates the second color data for the area excluding the space in which the first color data exists, compresses the first and second color data, Lt; / RTI >

Further, the encoder can identify the specific gravity of the first color and the second color in the product information, and generate the first color data for the color that occupies a larger specific gravity.

Further, an embodiment of the present invention provides an electronic price indicator.

An electronic price indicator according to an embodiment of the present invention includes a communication unit that performs wireless communication with an electronic price display repeater, a decoder that decodes the color data received from the electronic price display repeater through the communication unit and restores the original color data, And a display unit for displaying the product information according to the original color data restored by the decoder.

Here, the display unit may be implemented with 3-color E-paper.

In addition, the decoder may extract the first and second color data from the received color data, and restore the original color data using the first and second color data.

Further, an embodiment of the present invention provides a method of transmitting color data of an electronic price display system.

According to the method for transmitting color data in the electronic price display system according to an embodiment of the present invention, first color data is generated based on original color data, and a second color is generated for a region excluding a space in which first color data exists, After generating the data, the first color data and the second color data may be compressed to generate and transmit color data.

Also, before generating the first color data, the specific gravity of the first color and the second color in the original color data can be confirmed, and it is possible to generate the first color data for the color that occupies a larger specific gravity.

In addition, the means for solving the above-mentioned problems are not all enumerating the features of the present invention. The various features of the present invention and the advantages and effects thereof will be more fully understood by reference to the following specific embodiments.

According to an embodiment of the present invention, when the display unit of the electronic price indicator is implemented as a color display, the amount of data transmitted from the electronic price display server to the electronic price indicator can be greatly reduced. This makes it possible to prevent deterioration of the system performance caused by transmission of a large amount of color data.

1 is a block diagram of an electronic price display system according to an embodiment of the present invention.
2 is a diagram for explaining a concept of generating color data according to an embodiment of the present invention.
3 is a block diagram of an electronic price display server according to an embodiment of the present invention.
4 is a block diagram of an electronic price indicator according to an embodiment of the present invention.
5 is a flowchart of a color data transmission method of an electronic price display system according to an embodiment of the present invention.
6 is a flowchart of a method of transmitting color data in an electronic price display system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order that those skilled in the art can easily carry out the present invention. In the following detailed description of the preferred embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In the drawings, like reference numerals are used throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to "include" an element means that it may include other elements, rather than excluding other elements, unless specifically stated otherwise.

1 is a block diagram of an electronic price display system according to an embodiment of the present invention.

1, an electronic price display system according to an embodiment of the present invention includes an electronic price display server 100 (for example, an ESL server), a plurality of electronic price display repeaters 200 (for example, And a plurality of electronic price indicators 300 (e.g., electronic tags).

The electronic price display server 100 can transmit merchandise information including price information and the like to a plurality of electronic price display repeaters 200 through a wired communication network (for example, Ethernet).

Here, when the electronic price display server 300 is implemented to display color information as will be described later, the electronic price display server 100 transmits the above-described product information to a plurality of electronic price display relays 200 in the form of color image data, Lt; / RTI >

In this case, the electronic price display server 100 may generate color data as described below with reference to Fig. 2 in order to minimize the amount of data to be transmitted to the plurality of electronic price display repeaters 200. [

Each of the plurality of electronic price display repeaters 200 can perform wireless communication with a plurality of electronic price indicators 300. For example, each of the plurality of electronic price indicating repeaters 200 may communicate with a plurality of electronic price indicators 300 through Zigbee communication (wireless communication standard IEEE 802.15.4), but is not limited thereto.

Here, each of the plurality of electronic price display relays 200 may transmit the product information received from the electronic price display server 100 to the plurality of electronic price display devices 300. [

Each of the plurality of electronic price indicators 300 may display product information received from at least one of the plurality of electronic price display relays 200.

Here, each of the plurality of electronic price indicators 300 includes a display unit for displaying product information as described later with reference to FIG. 4, and the display unit can be implemented as a color display capable of displaying color information.

In this case, each of the plurality of electronic price indicators 300 may receive product information in the form of color image data from the electronic price display server 100.

Hereinafter, the detailed configuration and function of the electronic price display system according to the embodiment of the present invention and the color data transmission method therefor will be described in more detail with reference to FIG. 2 to FIG.

2 is a diagram for explaining a concept of generating color data according to an embodiment of the present invention.

According to an embodiment of the present invention, a display unit provided in the plurality of electronic price indicators 300 may be implemented as a color display. For example, the display unit may display colors using three colors of black, red, and white 3 color E-paper.

In this case, for example, in order to represent an image of 100x100 pixels, conventionally, it has been implemented to generate black image data and red image data for the entire pixel, respectively.

However, according to an embodiment of the present invention, when encoding the original color data 20, first, black image data 21 is generated, and then black image data 21 is generated It is possible to generate the red image data 22 after excluding the existing space. Alternatively, after generating the red image data 22 first, the black image data 21 may be generated except for the space where the red image data 22 exists.

Thereafter, the generated black image data 21 and red image data 22 may be compressed to generate color data to be transmitted to the plurality of electronic price display repeaters 200.

In the color data, a region in which black and red overlap is indicated as black. By using this, the amount of color data can be reduced by omitting the data for unnecessary overlapping parts.

3 is a block diagram of an electronic price display server according to an embodiment of the present invention.

3, the electronic price display server 100 according to an exemplary embodiment of the present invention may include a communication unit 110, a database 120, an encoder 130, and a controller 140.

The communication unit 110 is for performing wire communication with a plurality of electronic price display relays (200 of FIG. 1), and may be implemented by a wired communication technology such as Ethernet, for example.

The database 120 is for storing information necessary for operation of the electronic price display system.

For example, the database 120 may store product information including product price information and the like and update information thereof. Here, the product information may be color data including color information.

The encoder 130 may generate color data to be transmitted to the plurality of electronic price display repeaters 200 based on the product information stored in the database 120 under the control of the controller 140. [

For example, the encoder 130 generates first color data (e.g., black image data) based on original color data that is product information stored in the database 120, and thereafter, The second color data (e.g., red image data) can be generated. In this case, the encoder 130 may determine the specific gravity occupied by the first color and the second color in the original color data, and may preferentially generate the color data by determining the color occupying a larger specific gravity as the first color.

In addition, the encoder 130 may generate the color data to be transmitted to the plurality of electronic price display repeaters 200 by compressing the generated first and second color data.

The control unit 140 is a unit for performing overall operation control of the electronic price display server 100 and includes a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor, an application specific integrated circuit ASIC, Field Programmable Gate Arrays (FPGA), or the like, and may include a plurality of cores.

For example, when the controller 140 wants to transmit the merchandise information including the color information to a plurality of electronic price display relays (200 of FIG. 1), the controller 140 controls the encoder 130 to perform the above- It is possible to generate color data as well as to transmit the generated color data through the communication unit 110. [

4 is a block diagram of an electronic price indicator according to an embodiment of the present invention.

4, an electronic price indicator 300 according to an embodiment of the present invention may include a communication unit 310, a decoder 320, a display unit 330, and a control unit 340.

The communication unit 310 is for performing wireless communication with a plurality of electronic price display relays (200 in FIG. 1), and may be implemented by a wireless communication technology such as ZigBee.

The decoder 320 receives the color data from at least one of the plurality of electronic price display relays (200 in FIG. 1) through the communication unit 310, decodes the received color data, and transmits the product information That is, the original color data.

For example, the decoder 320 may extract the first and second color data from the received color data, and restore the original color data using the first and second color data. Specifically, since the second color data is omitted in the space in which the first color data exists, the original color data can be restored by filling the second color data with respect to the space.

The display unit 330 displays product information received from the electronic price display repeater 200 (FIG. 1). For example, the display unit 330 may include an electrophoretic display (EPD) capable of displaying color information such as three- ), Or the like.

For example, the display unit 330 may display the product information according to the original color data restored by the decoder 320.

The control unit 340 is a unit for performing overall operation control of the electronic price indicator 300 and includes a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor, an application specific integrated circuit ), Field Programmable Gate Arrays (FPGA), and the like.

For example, the control unit 340 may control the decoder 320 to restore the color data received from at least one of the plurality of electronic price display relays (200 in FIG. 1) through the communication unit 310.

In addition, the controller 340 may control the original color data restored by the decoder 320 to be displayed through the display unit 330.

FIG. 5 is a flowchart of a method of transmitting color data in an electronic price display system according to an embodiment of the present invention, and may be performed by an encoder included in an electronic price display server.

Referring to FIG. 5, an encoder provided in an electronic price display server receives original color data corresponding to product information (S50).

Thereafter, first color data (for example, black image data) is generated based on the input original color data (S51), second color data (for example, (Red image data) (S52).

Thereafter, the first and second color data are compressed to generate color data to be transmitted to the plurality of electronic price display relays 200 (S53), and the generated color data is transmitted to a plurality of electronic price display relays (S54).

FIG. 6 is a flowchart of a method of transmitting color data in an electronic price display system according to an exemplary embodiment of the present invention, and may be performed by an encoder included in an electronic price display server.

Referring to FIG. 6, an encoder provided in the electronic price display server receives original color data corresponding to product information (S60).

Then, the specific gravity occupied by the first color and the second color in the input original color data is checked (S61). This is for determining which color is to be preferentially generated, and if the color that occupies a larger weight is preferentially selected, the amount of data to be transmitted can be further reduced.

If it is determined that the first color has a larger specific gravity (S62), the first color data is preferentially generated (S63) as described above with reference to steps S51 through S54 of FIG. 5, (S64), and generates and transmits color data on the basis of this (S67, S68).

On the other hand, if the second color occupies a larger specific gravity (S62), the second color data is preferentially generated (S65), and then the first color data is generated (S66), and color data is generated and transmitted based on the generated first color data (S67, S68).

The present invention is not limited to the above-described embodiments and the accompanying drawings. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. In addition, all or a part of each of the above-described embodiments of the present invention may be selectively combined with each other.

20: Original color data
21: Black image data
22: Red image data
100: Electronic price display server
110:
120: Database (DB)
130: Encoder
140:
200: Electronic price display repeater
300: Electronic price indicator
310:
320: decoder
330:
340:

Claims (8)

A communication unit for performing wire communication with the electronic price display repeater;
A database for storing product information including color information;
An encoder for generating color data to be transmitted to the electronic price display repeater based on merchandise information stored in the database; And
And control to transmit color data generated by the encoder to the electronic price display repeater through the communication unit.
The method according to claim 1,
The encoder generates first color data based on the product information, generates second color data for a region excluding the space in which the first color data exists, compresses the first and second color data And generates the color data.
3. The method of claim 2,
Wherein the encoder confirms a specific weight occupied by the first color and the second color in the product information and generates the first color data with respect to a color occupying a larger weight.
A communication unit for performing wireless communication with the electronic price display repeater;
A decoder for decoding the color data received from the electronic price display repeater through the communication unit to restore the original color data; And
And a display unit for displaying product information according to the original color data restored by the decoder.
5. The method of claim 4,
Wherein the display unit is implemented with 3-color E-paper.
6. The method of claim 5,
Wherein the decoder extracts first and second color data from the received color data and restores the original color data using the first and second color data.
Generating first color data based on original color data;
Generating second color data for a region excluding the space in which the first color data exists;
Compressing the first color data and the second color data to generate color data; And
And transmitting the color data.
8. The method of claim 7,
Before the step of generating the first color data,
Further comprising the step of confirming a specific gravity occupied by the first color and the second color in the original color data,
Wherein the first color data is generated for a color that occupies a larger weight.
KR1020150050667A 2015-04-10 2015-04-10 Electronic shelf label tag, electronic shelf label server and color data transmitting method of electronic shelf label system KR20160121121A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102395271B1 (en) * 2020-12-01 2022-05-09 아주대학교산학협력단 Esl(electronic shelf label managing server, display device and controlling method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090070422A (en) 2007-12-27 2009-07-01 한국과학기술원 The method for inputting differential frame of electronic paper display device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090070422A (en) 2007-12-27 2009-07-01 한국과학기술원 The method for inputting differential frame of electronic paper display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102395271B1 (en) * 2020-12-01 2022-05-09 아주대학교산학협력단 Esl(electronic shelf label managing server, display device and controlling method thereof
WO2022119316A1 (en) * 2020-12-01 2022-06-09 아주대학교산학협력단 Esl management server, display device, and method for controlling same

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