KR20190143731A - Method, apparatus and system for processing product information - Google Patents

Abstract

According to one embodiment, disclosed are a method and an apparatus for processing product information by connecting through a broadcast scan signal. Specifically, provided are a gateway for broadcasting a scan signal, and the apparatus for processing product information for receiving product information by connecting to the gateway through the broadcast scan signal.

Description

Method, apparatus and system for processing product information

The present disclosure discloses a method, apparatus, and system for processing product information via communication.

In the case of displaying and selling various items in a predetermined space such as a distribution store, a means for transmitting information about the product to a customer is required. In general, paper labels that display product information, such as sales price, discount information, unit price, country of origin, etc., are displayed on a shelf in a retail store. The price display method using the paper label requires the disposal of the paper label and the creation of a new paper label when the product information is changed or the display position of the product is changed. Therefore, there is a constant cost for maintenance and furthermore, the environmental aspect. The waste of raw materials called paper has a negative impact on environmental protection.

Therefore, research and development of various means for replacing the existing paper label is being actively made. For example, research and development of electronic price indicators (or Electronic Shelf Labels (ESLs)) is being actively conducted.

However, when a plurality of product information processing apparatuses for processing and displaying product information are used in this way, there is a problem that collision between signals occurs.

The present disclosure can provide a method, apparatus, and system for processing product information through communication. In particular, a method and system in which a product information processing apparatus communicates with a gateway using a plurality of frequency domains is disclosed. The technical problem to be solved is not limited to the technical problems as described above, and various technical problems may be further included within the scope apparent to those skilled in the art.

The product information processing system according to the first aspect includes a gateway; And a product information processing device in communication with the gateway, wherein the gateway broadcasts a scan signal including access information for the gateway in a first frequency domain, and the product information processing device is configured to perform a scan signal on the scan signal. Without request, accessing the gateway according to the access information, sending operation status information to the gateway in a second frequency domain and receiving an operation status request from the gateway, and receiving product information from the gateway in a third frequency domain Can be displayed.

In addition, the gateway may broadcast the scan signal at a random frequency within a preset time range.

Also, the product information processing apparatus may access the gateway that transmits the strongest scan signal among the plurality of gateways.

Also, the product information processing apparatus may access the gateway that transmits the strongest scan signal among the scan signals received during a predetermined time interval.

The gateway may stop broadcasting of the scan signal or reduce the frequency of broadcasting the scan signal when traffic of more than a predetermined value occurs in the gateway.

In addition, the operation state request may include information indicating the wake-up slot time of the product information processing device.

In addition, the wake-up slot time may be determined according to the number of product information processing devices connected to the gateway.

According to a second aspect, there is provided a product information processing method comprising: receiving, from a gateway, a scan signal including access information for the gateway and broadcast in a first frequency domain; Accessing the gateway according to the access information without a request for the scan signal; Transmitting operational status information to the gateway in a second frequency domain; Receiving an operation state request corresponding to the operation state information from the gateway; And receiving and displaying product information from the gateway in a third frequency domain.

The receiving of the scan signal may include receiving the scan signal broadcasted at a random frequency within a preset time range.

The accessing of the gateway may include accessing the gateway that transmits the strongest scan signal among a plurality of gateways.

In addition, the receiving of the scan signal may reduce the frequency at which the scan signal is broadcasted when traffic equal to or greater than a predetermined value occurs in the gateway.

The third aspect may also provide a computer readable recording medium having recorded thereon a program for executing the method of the second aspect on a computer.

In addition, the product information processing apparatus according to the fourth aspect includes a transceiver comprising access information for a gateway, and receiving a scan signal broadcast from a first frequency domain from the gateway; Connect to the gateway according to the access information, transmit operation state information to the gateway in a second frequency domain, and receive an operation state request corresponding to the operation state information from the gateway, without a request for the scan signal; A processor controlling the transceiver; And a display for receiving and displaying product information from the gateway in a third frequency domain.

The present disclosure may provide a method, apparatus, and system for processing product information through communication.

1 is a diagram illustrating an apparatus for processing product information according to an exemplary embodiment.
2 is a block diagram illustrating an example of a product information processing system according to an exemplary embodiment.
3 is a block diagram illustrating an example of a product information processing apparatus according to an exemplary embodiment.
4 is a diagram illustrating an example in which product information processing apparatuses operate in a situation in which a plurality of gateways operate.
5 is a flowchart illustrating an example in which the product information processing apparatus operates in cooperation with a first gateway and a second gateway.
6 is a flowchart illustrating a method of displaying, by a product information processing apparatus, product information by communicating with a gateway using a plurality of frequency domains.
7 is a diagram illustrating side and front surfaces of a product information processing apparatus according to an exemplary embodiment.

The terminology used in the embodiments is a general term that has been widely used as much as possible in consideration of the functions of the present invention, but may vary according to the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. In addition, in certain cases, there is also a term arbitrarily selected by the applicant, in which case the meaning will be described in detail in the description of the invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents throughout the present invention, rather than the names of the simple terms.

When a part of the specification is said to "include" any component, this means that it may further include other components, except to exclude other components unless otherwise stated. In addition, the “…” described in the specification. Wealth ”,“… Module ”means a unit for processing at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

Hereinafter, with reference to the drawings will be described embodiments of the present invention;

1 is a diagram for describing a product information processing device 11, 12, 21, 22, 23, 24, and 25, according to an exemplary embodiment.

The product information processing apparatuses 11 and 12 according to an exemplary embodiment may display product information. For example, the product information processing devices 11 and 12 may include a product name, a product price, an expiration date, a product source, an origin of the product, a uniform resource locator (URL) for the product, and a QR code (Quick Response Code) for the product. , The barcode for the product, the date of manufacture of the product, the capacity of the product, the price per unit weight of the product, the price per unit number of the product, the weight of the product, the size of the product, the evaluation of the product, the quantity sold of the product, Discount period, discounted price, whether 1 + 1 or 2 + 1, discount card type, discount by discount card, etc.), product preference, installment period, etc. may be displayed. The product information may include information about a product displayed by the product information processing devices 11 and 12. For example, the product information may include information about the above-mentioned displayed matter.

In addition, the product information may include location information indicating a location of a product in a store, location information determined from identification information, and the like, and the product information may broadly include various information about the product and the product information processing device. have.

The product information processing apparatuses 11 and 12 according to an exemplary embodiment may receive product information from the servers 41 and 42. The first server 41 may be a server managing a plurality of stores, and the second server 42 may be a server managing one store. The first server 41 not only transmits product information to a plurality of stores, but also transmits product related information (eg, inventory information, sales information, sales volume information, return information, price change information, etc.) from the plurality of stores. Can be received and processed. When the amount of data processed by the first server 41 is sufficiently large, the first server 41 may process data received through a big data processing scheme to derive a result. For example, the first server 41 may analyze product related information to obtain an analysis result about a relationship between a location where a product is displayed and a sale amount of the product, a location where a product is displayed, and a relationship between an age group of a purchaser and the like. have.

The second server 42 transmits the product information to the first network device 31, and the first network device 31 is the product information processing devices 11, 12 and / or the product information processing devices 21, 22, 23, 24, 25) can be sent to the product information. When the product information processing apparatuses 21, 22, 23, 24, and 25 do not have a wireless communication function, the product information processing apparatuses 21, 22, 23, 24, and 25 are connected to the product information processing apparatuses 11 and 12. Product information can be received by wire.

The first network device 31 and the second network device 32 may be routers or repeaters. For example, the first network device 31 may operate as a gateway, and the first network device 31 may include the product information processing devices 11 and 12 and / or the product information processing devices 21, 22, 23, 24 and 25) to communicate with the IEEE.

The first network device 31 according to an embodiment may communicate with the product information processing devices 11 and 12 and / or the product information processing devices 21, 22, 23, 24, and 25 in a wired or wireless manner. However, the range of devices that can be directly communicated may vary according to the functions of the product information processing devices 11 and 12 or the product information processing devices 21, 22, 23, 24, and 25. For example, when the product information processing apparatuses 11 and 12 and the product information processing apparatuses 21, 22, 23, 24, and 25 are wired and mutually wired communication is performed, the product information processing apparatuses 21, 22 , 23, 24, 25 and wireless communication between the first network device 31 may not be performed. The product information processing apparatuses 21, 22, 23, 24, and 25 may receive necessary information (eg, product information, etc.) from the product information processing apparatuses 11 and 12 connected by wire.

The product information processing apparatuses 11 and 12 according to an exemplary embodiment may communicate with various types of external devices according to various types of communication methods. The product information processing devices 11 and 12 may communicate with various external devices through wired communication or wireless communication. The product information processing devices 11 and 12 may include a Wi-Fi chip, a Bluetooth chip, a wireless communication chip, an NFC chip, and the like. The product information processing apparatuses 11 and 12 may communicate with various external devices using a Wi-Fi chip, a Bluetooth chip, a wireless communication chip, an NFC chip, and the like.

The Wi-Fi chip and the Bluetooth chip may communicate with each other via Wi-Fi and Bluetooth. In the case of using a Wi-Fi chip or a Bluetooth chip, various connection information such as SSID and session key may be transmitted and received first, and then various communication information may be transmitted and received by using the same. The wireless communication chip may perform communication according to various communication standards such as IEEE, Zigbee, 3rd Generation (3G), 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE), and the like. The NFC chip may operate in a near field communication (NFC) method using a 13.56 MHz band among various RF-ID frequency bands such as 135 kHz, 13.56 MHz, 433 MHz, 860 to 960 MHz, and 2.45 GHz.

The product information processing apparatuses 21, 22, 23, 24, and 25 may correspond to specific products. For example, the first product information processing device 21 may correspond to a first product, the second product information processing device 22 may correspond to a second product, and the third product information processing device 23 may correspond to a third product. .

There may be a variety of methods for determining products corresponding to each of the product information processing apparatuses 21, 22, 23, 24, and 25.

The product information processing apparatus 21, 22, 23, 24, or 25 may determine a corresponding product through wireless communication. For example, each of the product information processing devices 21, 22, 23, 24, and 25 may determine a corresponding product through a local area network, NFC, Bluetooth WiFi, or the like. For example, when the first product information processing apparatus 21 receives the identification information about the first product through the NFC communication method, the memory included in the first product information processing apparatus 21 may include the first product information. Identification information may be stored. For example, when a user sequentially tags an identification symbol (for example, a barcode or a QR code) of the first product and an NFC tag of the first product information processing apparatus 21 using a PDA, the first product information processing apparatus 21 may be used. ) May determine the first product as a product corresponding to the first product information processing apparatus 21. In this case, the first product information processing device 21 requests the first product information processing device 11 for information about the first product, and the information about the first product from the first product information processing device 11. Can be received and displayed.

The product information processing apparatuses 21, 22, 23, 24, and 25 may determine corresponding products through wired communication. According to one embodiment, each product information processing device (21, 22, 23, 24, 25) is associated with unique identification information (e.g., physically determined identification information, software determined identification information) and Each of the product information processing apparatuses 21, 22, 23, 24, and 25 may receive product information from the product information processing apparatuses 11 and 12 by wire in accordance with unique identification information.

For example, the identification information of the first product information processing device 21 is determined according to the distance from the first product information processing device 11 to the first product information processing device 21, and the first product information processing device. 11 may transmit the product information corresponding to the determined identification information to the first product information processing device 21. According to an embodiment of the present disclosure, when there are a plurality of product information processing devices 21 and 22 connected to the first product information processing device 11, the first product information processing device 11 may include the first product information processing device 11. ), Identification information (eg, ID) can be determined according to the distance from the product information processing apparatuses 21, 22.

For example, the first product information processing device 11 may be configured such that a distance between the respective product information processing devices 21 and 22 and the first product information processing device 11 connected by wire to the first product information processing device 11 is determined. Identification information for each of the product information processing apparatuses 21 and 22 can be determined in this order. In this case, the first product information processing device 21 closest to the first product information processing device 11 corresponds to the first identification information, and the second product closest to the first product information processing device 11. The information processing device 22 can correspond to the second identification information.

For example, the first product information processing device 11 may have a distance between each of the product information processing devices 21 and 22 and the first product information processing device 11 connected by wire to the first product information processing device 11. Identification information for each of the product information processing apparatuses 21 and 22 can be determined according to which of the predetermined sections is included. In this case, the first product information processing device 21 located within a distance of 1 m from the first product information processing device 11 is associated with the first identification information, and the first product information processing device 11 is 1 m or more and 2 m or less. The second product information processing device 22 located in the compartment can correspond to the second identification information.

As another example, the identification information of the first product information processing device 21 is determined according to the physical characteristics (eg, serial number, etc.) of the first product information processing device 21, and the first product information processing device 11 is Product information corresponding to the identification information determined according to the physical characteristics of the first product information processing apparatus 21 can be transmitted to the first product information processing apparatus 21. For example, when the serial number of the first product information processing device 21 is 123, the first product information processing device 11 corresponds to the first product with respect to the serial number of 123, and corresponds to the serial number of 123. Information about the first product can be transmitted to the first product information processing device 21.

The product information processing apparatuses 11 and 12 may receive product information wirelessly from the first network device 31 (eg, a gateway), and each product information processing apparatus 11 or 12 may transmit corresponding product information. Can be received. For example, the first product information processing device 11 may receive product information corresponding to the first product information processing device 11 among the product information transmitted by the first network device 31.

The product information may include information about the plurality of products and / or location information. For example, the product information may include first product information and second product information. According to an embodiment, when the information about the first product is the first product information and the information about the second product is the second product information, the first product information processing apparatus 21 receives and displays the first product information. The second product information processing device 22 may receive and display the second product information. In addition, the first product information may include identification information indicating the first product information processing device 21 among the plurality of product information processing devices 21 and 22.

The product information processing apparatuses 11 and 12 according to an exemplary embodiment may transmit product information and / or display product information. For example, the product information processing apparatuses 11 and 12 may transmit the product information to the product information processing apparatuses 21, 22, 23, 24, and 25 and may not display the product information. In this case, the product information processing devices 11 and 12 may not include a display. As another example, the product information processing devices 11 and 12 may display the product information as well as transmit the product information to the product information processing devices 21, 22, 23, 24, and 25. In this case, the product information processing apparatuses 11 and 12 display product information about the product corresponding to the product information processing apparatuses 11 and 12, or in the product information processing apparatuses 21, 22, 23, 24, and 25, The information on the displayed products can be comprehensively displayed.

The second network device 32 may transmit and receive data in cooperation with the first server 41. For example, the second network device 32 includes a portable terminal 51, a second server 42, a first network device 31, product information processing devices 11 and 12, and a product information processing device 21; 22, 23, 24, 25) and the like can transmit and receive data.

The portable terminal 51 according to an embodiment may refer to a terminal including a communication function without limitation. For example, the portable terminal 51 may be a smart phone, a personal digital assistant (PDA), a notebook computer, a tablet PC, an e-book, a portable multimedia player (PMP), a netbook, or the like. The portable terminal 51 may be used for communication (eg, transmission and reception of identification information, product information, etc.) with the product information processing devices 11 and 12 and / or the product information processing devices 21, 22, 23, 24 and 25. Can be.

The display included in the product information processing device 11, 12 and / or the product information processing device 21, 22, 23, 24, 25 is a liquid crystal display, a thin film transistor-liquid. crystal displays, organic light-emitting diodes, flexible displays, 3D displays, electrophoretic displays, and the like. In addition, the product information processing apparatus 11, 12 and / or the product information processing apparatus 21, 22, 23, 24, 25 may include two or more displays, depending on the implementation form. In this case, the two or more display units 1210 may be disposed to face each other using a hinge. In addition, when the display is configured as a touch screen by forming a touch pad in a layer structure, the display may be used as an input device in addition to the output device.

The product information processing devices 11 and 12 may be connected to the product information processing devices 21, 22, 23, 24, and 25 by wire. For example, the first product information processing device 11 is connected to the plurality of product information processing devices 21 and 22 by the first line 61, and the second product information processing device 12 is the plurality of product information. The processing apparatuses 23, 24, 25 may be connected to the second line 62. The first line 61 and the second line 62 may have a rail shape.

2 is a block diagram illustrating an example of a product information processing system 100 according to an exemplary embodiment.

As illustrated in FIG. 2, the product information processing system 100 may include a gateway 120 and a product information processing device 130.

However, it will be understood by those skilled in the art that other general purpose components other than the components shown in FIG. 2 may be further included in the product information processing system 100. For example, the product information processing system 100 may further include a server 140. Or according to another embodiment, it will be understood by those skilled in the art that some of the components shown in FIG. 2 may be omitted.

The gateway 120 according to an embodiment may communicate with the server 140 and / or the product information processing device 130.

The gateway 120 according to an embodiment may broadcast a scan signal including access information about the gateway 120 in the first frequency domain. The gateway 120 may broadcast a scan signal including connection information necessary to access the gateway 120 even when there is no special request. Accordingly, the product information processing apparatus 130 may receive the scan signal from the gateway 120 and access the gateway 120 without requesting the scan signal from the gateway 120. When the process of requesting the gateway 120 for the scan signal from the product information processing apparatus 130 may be omitted, the probability of signal collision may decrease. For example, when there are a plurality of product information processing apparatus 130, when the plurality of product information processing apparatus 130 requests the scan signal in the first frequency domain, the probability of collision between signals in the first frequency domain is increased. . However, when the plurality of product information processing apparatuses 130 do not transmit the scan signal and receive the broadcasted broadcast signal and access the gateway 120 when the gateway 120 needs to be connected, the product information processing apparatus 130 may be located in the first frequency domain. The probability of collision between signals can be lowered.

The product information processing apparatus 130 according to an embodiment accesses the gateway 120 according to the access information without requesting a scan signal, and transmits the operation state information and the operation state request with the gateway 120 in the second frequency domain. Can send and receive The product information processing apparatus 130 may transmit operation state information to the gateway 120 in the second frequency domain, and receive an operation state request from the gateway 120.

An example of the operation status information may be a keep-alive report, and an example of the operation status request may be a keep-alive response.

The product information processing apparatus 130 may access the gateway 120 using the access information included in the broadcasted scan signal. The product information processing apparatus 130 may transmit / receive operation state information and an operation state request with the gateway 120 in a second frequency domain different from the frequency domain in which the scan signal is broadcast.

Since the scan signal is broadcast in the first frequency domain and the operation state information and the operation state request are transmitted and received in the second frequency domain, mutual interference may not occur.

The operation state information may be a message for notifying the gateway 120 of information indicating that the product information processing device 130 is in an operable state. In addition, the operation state request may be a message that the gateway 120 requests the operation state from the product information processing device 130. For example, the operation state request may include information indicating the wakeup slot time of the product information processing device 130. The wakeup slot time may refer to a period during which the product information processing device 130 waits. For example, when the wake-up slot time is 10 seconds, the product information processing apparatus 130 may transmit the operation state information to the gateway 120 after waiting for 10 seconds.

The product information processing apparatus 130 according to an embodiment may receive and display product information from the gateway 120 in the third frequency domain.

The product information may be transferred from the server 140 to the product information processing device 130 via the gateway 120. The product information may broadly include various information about the product and the product information processing device. In addition, the product information may be transmitted and received in the third frequency domain so as not to collide with information transmitted and received in the first frequency domain or the second frequency domain.

3 is a block diagram illustrating an example of a product information processing apparatus 130 according to an embodiment.

As shown in FIG. 3, the product information processing apparatus 130 may include a transceiver 310 and a processor 320.

However, it will be understood by those skilled in the art that other general-purpose components other than the components shown in FIG. 3 may be further included in the product information processing apparatus 130. For example, the product information processing device 130 may further include a display (not shown), a memory 330, and the like. Alternatively, according to another embodiment, some of the elements shown in FIG. 3 may be omitted by those of ordinary skill in the art.

The transceiver 310 according to an embodiment may receive a scan signal from a gateway. The scan signal may include connection information for the gateway 120. The scan signal may be broadcast in the first frequency domain.

Since the gateway 120 broadcasts a scan signal including the connection information even without a request for the scan signal, the processor 320 may access the gateway 120 according to the connection information without a request for the scan signal.

After connecting to the gateway 120, the processor 320 according to an embodiment transmits operation state information to the gateway 120 in the second frequency domain, and sends an operation state request corresponding to the operation state information to the gateway 120. The transceiver 310 may be controlled to receive from.

After receiving the operation state request, the transceiver 310 receives the product information in the third frequency domain from the gateway 120, and a display (not shown) according to an embodiment may display the product information.

4 is a diagram illustrating an example in which the product information processing apparatuses 131 to 135 operate in a situation where the plurality of gateways 121 and 122 operate.

According to an embodiment, the plurality of gateways 121 and 122 may broadcast a scan signal in the first frequency domain. For example, the plurality of gateways 121 and 122 may broadcast a scan signal at random frequencies within a preset time range. For example, the plurality of gateways 121 and 122 may broadcast the scan signal once at any time within 1500 ms. Alternatively, the plurality of gateways 121 and 122 may broadcast the scan signal at random frequencies within different time ranges. For example, the first gateway 121 may broadcast the scan signal once at any time within 150 ms, and the second gateway 122 may broadcast the scan signal once at any time within 200 ms.

Since the plurality of gateways 121 and 122 broadcast the scan signal at a random frequency within a predetermined time range, a case where the scan signal is continuously collided can be prevented.

The product information processing apparatuses 131 to 135 according to an embodiment may access the first gateway 121 that transmits the strongest scan signal among the plurality of gateways 121 and 122. Regardless of the positions of the plurality of gateways 121 and 122, a gateway (eg, the first gateway 121) to be connected may be determined based on the strength of the scan signal.

The product information processing apparatuses 131 to 135 according to an embodiment may access a gateway that transmits the strongest scan signal among the scan signals received during a preset time interval. For example, the product information processing device 135 may access a gateway (eg, the first gateway 121) that transmits the strongest scan signal among the scan signals received for 150 ms.

The connected gateways 131, 132, 133, and 134 may transmit operating state information to the connected first gateway 121 in a second frequency domain different from the first frequency domain. The first gateway 121 may transmit an operation state request in response to the operation state information.

The gateway 121 according to an embodiment may stop the broadcast of the scan signal or reduce the frequency of broadcasting the scan signal when traffic more than a predetermined value occurs in the gateway 121. Alternatively, the gateway 121 may reduce the strength of the broadcast scan signal when traffic more than a predetermined value occurs in the gateway 121. When the traffic is high, the gateway 121 may control the traffic by reducing the number of additionally connected product information processing apparatuses.

5 is a flowchart illustrating an example in which the product information processing apparatus 130 operates in cooperation with the first gateway 121 and the second gateway 122.

In operation S510, the second gateway 122 broadcasts a scan signal, and in operation S520, the first gateway 121 broadcasts the scan signal. The product information processing apparatus 130 may receive the scan signal broadcast by the first gateway 121 after receiving the scan signal broadcast by the second gateway 122. The product information processing apparatus 130 may access the first gateway 121 that broadcasts a scan signal having a greater intensity regardless of the order of the received scan signals. The product information processing apparatus 130 transmits the operation state information to the first gateway 121 in step S530, and receives the operation state request from the first gateway 121 in step S540.

The product information processing apparatus 130 that transmits and receives the operation state information and the operation state request at least once may receive the product information from the first gateway 121 in step S550. In addition, the product information processing device 130 may display the received product information.

6 is a flowchart illustrating a method in which the product information processing apparatus 130 communicates with the gateway 120 using a plurality of frequency domains to display product information.

The product information processing apparatus 130 according to an embodiment receives the scan signal broadcast in the first frequency domain in step S610, and accesses the gateway 120 according to the access information without request for the scan signal in step S620. do.

In step S630, the product information processing device 130 transmits the operation state information to the gateway 120 connected in step S620 through the second frequency domain different from the first frequency domain, and the operation state corresponding to the operation state information in step S640. Receive the request from gateway 120.

In operation S650, the product information processing apparatus 130 receives and displays the product information from the gateway 120 in a third frequency domain different from the first and second frequency domains.

7 is a diagram illustrating a side and a front surface of the product information processing apparatus 130 according to an embodiment.

The product information processing apparatus 130 according to an embodiment may perform wired or wireless communication. In addition, the product information processing apparatus 130 according to an embodiment may display one or more product information. For example, the product information processing device 130 may display a product name, a product price, and the like.

On the other hand, the above-described method can be written as a program that can be executed in a computer, it can be implemented in a general-purpose digital computer to operate the program using a computer-readable recording medium. In addition, the structure of the data used in the above-described method can be recorded on the computer-readable recording medium through various means. The computer-readable recording medium may include a storage medium such as a magnetic storage medium (eg, ROM, RAM, USB, floppy disk, hard disk, etc.), an optical reading medium (eg, CD-ROM, DVD, etc.). do.

Those skilled in the art will appreciate that the present invention may be embodied in a modified form without departing from the essential characteristics of the above-described substrate. Therefore, the disclosed methods should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

11, 12: product information processing device 31: the first network device
32: second network device 41: first server
42: second server 51: portable terminal
61: first line 62: second line
21, 22, 23, 24, 25: product information display device
100: product information processing system 120: gateway
130: product information processing unit 140: server
310: transceiver 320: processor
330: memory

Claims (13)

Gateway; And
A product information processing device in communication with the gateway;
The gateway broadcasts a scan signal including access information for the gateway in a first frequency domain,
The product information processing apparatus connects to the gateway according to the access information without request for the scan signal, transmits operation state information to the gateway and receives an operation state request from the gateway in a second frequency domain, A product information processing system for receiving and displaying product information from the gateway in three frequency domains.
The method of claim 1,
The gateway is
Product information processing system for broadcasting the scan signal at a random frequency within a predetermined time range.
The method of claim 1,
The product information processing device
A product information processing system, connected to the gateway that transmits the strongest scan signal of the plurality of gateways.
The method of claim 1,
The product information processing device
And access the gateway for transmitting the strongest scan signal among the scan signals received for a predetermined time interval.
The method of claim 1,
The gateway stops broadcasting of the scan signal or decreases the frequency of broadcasting the scan signal when traffic equal to or greater than a predetermined value occurs in the gateway.
The method of claim 1,
And said operation status request includes information indicative of a wake-up slot time of said product information processing device.
The method of claim 6,
And the wake-up slot time is determined according to the number of product information processing devices connected to the gateway.
Receiving a scan signal from the gateway, the scan signal including access information for the gateway and broadcast in a first frequency domain;
Accessing the gateway according to the access information without a request for the scan signal;
Transmitting operational status information to the gateway in a second frequency domain;
Receiving an operation state request corresponding to the operation state information from the gateway; And
Receiving and displaying product information from the gateway in a third frequency domain.
The method of claim 8,
Receiving the scan signal
And receiving the scan signal broadcast at a random frequency within a preset time range.
The method of claim 8,
Accessing the gateway
Connecting to said gateway transmitting the strongest scan signal of a plurality of gateways.
The method of claim 8,
Receiving the scan signal
When the traffic of the gateway exceeds a predetermined value, the frequency at which the scan signal is broadcast is reduced.
A computer program stored on a record carrier for implementing the method of any one of claims 8-11.
A transceiver including access information for a gateway, the transceiver for receiving a scan signal broadcast from a first frequency domain from the gateway;
Access the gateway according to the access information without a request for the scan signal,
A processor for transmitting the operation state information to the gateway in a second frequency domain and controlling the transceiver to receive an operation state request corresponding to the operation state information from the gateway; And
And a display for receiving and displaying product information from the gateway in a third frequency domain.

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