KR20120041420A - Commercial trade supporting method using synchronization of time and location - Google Patents

Commercial trade supporting method using synchronization of time and location Download PDF

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Publication number
KR20120041420A
KR20120041420A KR1020100102864A KR20100102864A KR20120041420A KR 20120041420 A KR20120041420 A KR 20120041420A KR 1020100102864 A KR1020100102864 A KR 1020100102864A KR 20100102864 A KR20100102864 A KR 20100102864A KR 20120041420 A KR20120041420 A KR 20120041420A
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KR
South Korea
Prior art keywords
information
commerce
identification information
terminal
client
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KR1020100102864A
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Korean (ko)
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홍성렬
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(주)에이티솔루션
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Priority to KR1020100102864A priority Critical patent/KR20120041420A/en
Publication of KR20120041420A publication Critical patent/KR20120041420A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services

Abstract

The present invention relates to an electronic commerce supporting apparatus and method using time and position synchronization to support the e-commerce between the two by mapping the time information and location information received from each of the smart terminal and the merchant client having a motion sensor and GPS function will be.
The method for supporting e-commerce using time and location synchronization of the present invention is performed by the mapping server in a state where the mapping server is connected by a wired / wireless communication network with an offline merchant client having an affiliated application and a customer's smart terminal having an installed terminal application. (A) receiving terminal identification information, motion recognition time information, and current location information from the terminal; (B) receiving affiliate store identification information, electronic commerce request information, and request time information from an offline affiliate store client; After confirming the location of the offline affiliated client by the affiliated store identification information, the mobile terminal compares the current location information with the current location information, compares the motion recognition time information with the electronic commerce request time information, and offline the smart terminal that exists at the same location at the same time. (C) mapping an affiliated store client and supporting (d) an electronic commerce based on the terminal identification information and the affiliated store identification information between the mapped smart terminal and the affiliated store client.

Description

Apparatus and method for supporting e-commerce using time and location synchronization {commercial trade supporting method using synchronization of time and location}

The present invention relates to an apparatus and method for supporting electronic commerce using time and position synchronization, and in particular, by mapping time information and location information received from a smart terminal having a motion sensor and a GPS function and an affiliated client, respectively, to e-commerce between the two. An apparatus and method for supporting e-commerce using time and location synchronization to support the present invention are provided.

As is well known, smart phones are in the spotlight in recent years as personal portable terminals, which can be seen as mobile phones providing advanced functions such as PCs. These smartphones offer standardized interfaces and platforms for application developers such as iOS, Symbian OS, Palm WebOS, BlackBerry OS, Samsung Sea, Windows Mobile, Windows Phone 7, Google Android or Maemo. It is equipped with an open operating system that can run various applications.

As such, the key to using smartphones is in the App Store (abbreviated as 'App Store') where various applications can be used. These App Stores can easily download applications and contents that users want, such as games, ebooks, music, and videos. This service has been activated since the launch of Apple's App Store.

Smartphones also have relatively large displays, large memory, touch screens that provide a convenient input interface, and mobile communication modules and Wi-Fi modules that support wireless Internet. It provides a similar usage environment. Furthermore, most smartphones on the market are equipped with a GPS module and a multi-axis, for example, 6-axis G-sensor (hereinafter referred to as a "motion sensor") for motion recognition, which enables the development of various applications based on location or motion. have.

On the other hand, by adopting a larger display than such a smartphone, a smart terminal, for example, an Apple iPad, which is closer to a tablet PC than a mobile phone function, is also being prepared for release. It can be connected to the Internet through the internet network, and is used as a general term for a terminal equipped with a motion sensor and a GPS function.

On the other hand, payment through a conventional mobile terminal is offline payment by radio frequency identification (RFID) communication while e-money or credit card information is stored in a universal subscriber identity module (USIM) chip of the mobile terminal. It is made by transmitting information in a contact or contactless manner with the terminal, in this case, there was a limitation that both the mobile communication terminal and the payment terminal should have an RFID communication module.

In addition, when issuing an electronic coupon in an offline store, when a customer is asked for a phone number of a mobile terminal, the user enters a payment terminal. Delivered to the terminal, the customer has a problem that requires a cumbersome and time-consuming procedure for issuing an electronic coupon by connecting to the electronic coupon issuing server through such a text message.

The present invention has been made to solve the above-mentioned problems, the time and location to support the e-commerce between the two by mapping the time information and location information received from each of the smart terminal and the merchant client with a motion sensor and GPS function An object of the present invention is to provide an apparatus and method for supporting electronic commerce using motivation.

E-commerce support method using the time and location synchronization of the present invention for achieving the above object is a mapping server in a state in which the mapping server is connected by a wired or wireless communication network with the smart terminal of the customer is installed and the offline merchant client installed with the merchant application. (A) receiving terminal identification information, motion recognition time information, and current location information from the smart terminal; (B) receiving affiliate store identification information, electronic commerce request information, and request time information from an offline affiliate store client; After confirming the location of the offline affiliated client by the affiliated store identification information, the mobile terminal compares the current location information with the current location information, compares the motion recognition time information with the electronic commerce request time information, and offline the smart terminal that exists at the same location at the same time. (C) mapping an affiliated store client and supporting (d) an electronic commerce based on the terminal identification information and the affiliated store identification information between the mapped smart terminal and the affiliated store client.

In the above-described configuration, the electronic commerce is an electronic coupon issuance operation, and the mapping server requests a smart server having the terminal identification information mapped in step (c) by requesting itself or an external coupon server in step (d). Characterized in that the electronic coupon is issued as part of the e-commerce support.

The electronic commerce is an electronic coupon use operation, and the mapping server requests the electronic coupon to be used for the smart terminal having the terminal identification information mapped in the step (c) and receives the electronic coupon, and then inquires its own electronic coupon issuance database. In the case of validity by requesting approval from an external coupon server, the use of the electronic coupon is approved as part of the electronic commerce support in step (d), and the approval fact is transmitted to the offline merchant client.

The electronic commerce is an electronic coupon use operation, and the mapping server receives the electronic coupon along with the terminal identification information, the motion recognition time information, and the current location information in step (a), and then inquires its own electronic coupon issuance database. Or requesting an approval from an external coupon server, if it is valid, approving the use of the electronic coupon as part of the electronic commerce support in the step (d) and delivering the fact of approval to the offline merchant client.

The e-commerce is a credit card payment operation, the mapping server further receives payment information in addition to the merchant identification information, the e-commerce request information and the request time information from the offline merchant client in step (b),

The electronic device of the step (d) may be supported by requesting approval by transmitting the terminal identification information, the affiliated store identification information, and the payment information mapped to the external payment server to the external payment server.

On the other hand, an electronic commerce support apparatus using time and location synchronization according to another aspect of the present invention is the merchant identification information and the e-commerce request information from the database and the offline merchant stores the merchant identification information for the offline merchant with the location information And receiving request time information, receiving terminal identification information, motion recognition time information, and current location information from a smart terminal, and querying the affiliated store identification information to the database to confirm the location of the offline affiliated client. Compare the motion recognition time information with the e-commerce request time information and map the smart terminal and the offline affiliated client that exist at the same location at the same time. It comprises the desired mapping server.

According to the apparatus and method for supporting electronic commerce using time and location synchronization of the present invention, an electronic coupon is issued or used by simply installing and simply operating the associated application program for an offline merchant client or a smart terminal that does not have an RFID communication device. Or it can support various electronic commerce such as credit card payment.

1 is a network diagram of an electronic commerce support system using time and location synchronization of the present invention.
2 is a schematic functional block diagram of a smart terminal in FIG.
Figure 3 is an application example screen installed on the merchant client.
4 is a flowchart illustrating a coupon issuing process according to an embodiment of an electronic commerce support method using time and location synchronization according to the present invention.
5 is a flowchart illustrating a coupon use process according to an embodiment of an electronic commerce support method using time and location synchronization according to the present invention.
6 is a flowchart illustrating a credit card payment process according to another embodiment of an electronic commerce support method using time and location synchronization of the present invention.

Hereinafter, a preferred embodiment of an electronic commerce support system and method using time and location synchronization according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a network diagram of an electronic commerce support system using time and location synchronization of the present invention, and FIG. 2 is a schematic functional block diagram of a smart terminal in FIG. 3 illustrates an example of a user interface of an application program installed in an affiliated store client.

First, as shown in Figure 1, the network configuration of the electronic commerce support system using the time and location synchronization of the present invention is largely offline merchant client 100 mapping server 400 through a wired / wireless communication network, such as the Internet (200) And the electronic coupon server 500 or the payment server 600, the customer's smart terminal 300 is a mobile communication network 210, for example, 3G network or future 4G network or wireless Internet network 220 Is connected through).

In the above-described configuration, the offline merchant client 100 is provided with a communication module, a display and a key input means (also a touch screen) and the mapping server 400, the electronic coupon server 500, or the payment server 600. An application program (hereinafter referred to as a "merchant store application") that performs various procedures related to issuing or using an electronic coupon or paying a credit card is installed. FIG. 3 is an example of a user interface screen of such an application program.

In addition, the offline merchant client 100 may be provided with a touch sensor 110 for detecting a contact with the smart terminal 300, such a touch sensor 110 is a variety of means such as a conventional button switch or touch panel or vibration sensor. It can be implemented as The touch sensor 110 may be connected to an offline merchant client without any difficulty by, for example, RF-232 or RS-482 or a USB interface.

Meanwhile, as illustrated in FIG. 2, the smart terminal 300 includes a CPU 310 that collectively controls the operation of the terminal, and a Wi-Fi module 350 that supports Internet access through wireless communication with surrounding access points. ), The mobile communication module 360, the GPS module 320 for generating current position information (coordinate information) of the smart terminal 300, the motion sensor 330 for detecting the movement of the smart terminal 300, the keypad or It may include a key input unit 340 such as a touch screen, a display 380 implemented by an LCD or an active mode organic light emitting diode (AMOLED), and a large memory 370 implemented by an SD card. As described above, the smart terminal 300 may also be equipped with an open operating system to drive an application program (hereinafter, referred to as a “terminal application”) supporting electronic commerce according to the present invention.

4 is a flowchart illustrating a coupon issuing process according to an embodiment of an electronic commerce support method using time and location synchronization according to the present invention. As shown in FIG. 4, in order to issue an electronic coupon according to an embodiment of the present invention, both the smart terminal 300 and the offline merchant client 100 are each application according to the present invention, that is, the terminal application and the merchant application. Should be executed (step S10 and step S12). In addition, the offline merchant client 100 instructs to issue an electronic coupon by pressing the "issue coupon" button, for example, on the user interface screen of the merchant application as shown in FIG. 3 (step S14).

In this state, when the customer lightly contacts the smart terminal 300 that he carries with the contact sensor 110 connected to the offline merchant client 100 according to the guidance of the offline merchant clerk, the offline merchant client 100 contacts the sensor. Recognize the operation of 110 (step S20) and immediately deliver it to the merchant application, and the merchant application immediately receives the identification information of its own merchant, for example, merchant ID and contact time information (exactly visual information, for convenience, Time information) is transmitted to the mapping server 400 (step S22) to request issuance of an electronic coupon. In this regard, the merchant application stores the site address of the mapping server 400 in advance, and the mapping server 400 stores the merchant ID and location information of the affiliate store for the affiliated offline client 100 in advance as a database. Should be. Of course, the merchant application itself may store the location information of the merchant and may read it and transmit it together when transmitting the merchant identification information.

Meanwhile, at the same time, the terminal application of the smart terminal 300 determines whether the motion is recognized by the motion sensor 330 (step S30), and if there is motion recognition, the terminal identification information, for example, the mobile phone number and the like. The recognition time information and the position information received from the GPS module 320 are transmitted to the mapping server 400 (step S32).

Then, the mapping server 400 checks the time information and location information received from the offline merchant client 100 and the smart terminal 300, respectively, and maps the offline merchant client and the smart terminal to match (step S40). Not only is the module's positioning capability accurate to a few meters in radius, but it also uses GPS time, so it is extremely unlikely that there will be different smart terminals and off-line merchant clients at the same location at the same time, thus ensuring mapping accuracy. There is a number.

As a result of the mapping, when the smart terminal and the offline merchant client exist at the same time (for example, within 2 seconds are regarded as the same time and within 10 meters within the same position) (step S42), the coupon server ( Sending the merchant identification information and the terminal identification information to the request 500 to request the electronic coupon to the smart terminal 300 (step S44).

Then, the coupon server 500 issues an electronic coupon to the smart terminal 300 having the terminal identification information (wireless transmission) (step S46) and transmits the electronic coupon occurrence fact to the offline merchant client 100, the terminal. The application stores the received electronic coupon in a predetermined storage (folder) of the memory. Finally, the coupon server 500 stores the electronic coupon issuance history in its own database. Meanwhile, in the above-described embodiment, the mapping server 400 and the coupon server 500 are separately operated. However, the mapping server 400 and the coupon server 500 may be integrated and operated by the same authority. Could be

5 is a flowchart illustrating a coupon use process according to an embodiment of an electronic commerce support method using time and location synchronization according to the present invention. As shown in FIG. 5, in order to issue an electronic coupon according to an embodiment of the present invention, the smart terminal 300 and the offline merchant client 100 may also use each application according to the present invention, that is, the terminal application and the merchant application. Execution (step S110 and step S112). In addition, the offline merchant client 100 notifies the merchant application that the procedure to be performed in the future is a procedure related to the use of the electronic coupon by pressing a "use coupon" button on the user interface screen of the merchant application as shown in FIG. Step S114).

In this state, when the customer lightly contacts the smart terminal 300 that he carries with the contact sensor 110 connected to the offline merchant client 100 according to the guidance of the offline merchant clerk, the offline merchant client 100 contacts the sensor. Recognizing the operation of the operation 110 (step S120) and immediately delivers it to the merchant application, and the merchant application immediately receives the identification information of the own merchant, for example, the merchant ID and the contact time information to the mapping server 400. Transfer (step S122) to request the use of the electronic coupon. In this regard, the merchant application stores the site address of the mapping server 400 in advance, and the mapping server 400 stores the merchant ID and location information of the affiliate store for the affiliated offline client 100 in advance as a database. Should be. Of course, the merchant application itself may store the location information of the merchant and may read it and transmit it together when transmitting the merchant identification information.

Meanwhile, at the same time, the terminal application of the smart terminal 300 determines whether the motion is recognized by the motion sensor 330 (step S130), and if there is motion recognition, the terminal identification information, for example, the mobile phone number and the like. The recognition time information and the location information received from the GPS module 320 are transmitted to the mapping server 400 (step S132).

Then, the mapping server 400 checks the time information and the location information received from the offline merchant client 100 and the smart terminal 300, respectively, and maps the matching offline merchant client and the smart terminal to each other (step S140). If there is a matching smart terminal and offline merchant client (step S142), the merchant server identification information and the terminal identification information is transmitted to the coupon server 500 to request to issue an electronic coupon to the smart terminal 300 (step S144).

Then, the coupon server 500 requests the wireless transmission of the electronic coupon to be used for the smart terminal 300 having the terminal identification information (step S150), and in response, the terminal application transmits the electronic coupon to be used to the coupon server 500 ( Step S152). Then, the coupon server 500 checks whether the electronic coupon received in the electronic coupon issuance history stored in the database to check whether it is a valid electronic coupon (step S160) and if it is not valid, the smart terminal 300 cannot be used. On the other hand, if it is valid (step S162), if the validity is notified to the offline merchant client 100 (step S164), the electronic coupon usage history is stored in its own database (step S168).

On the other hand, unlike the above-described embodiment, the user interface screen of the terminal application is provided with a coupon use button, when the customer presses the coupon use button, the terminal application in the terminal application stores the electronic coupon stored in the predetermined storage terminal identification information and time and When transmitting the location information can be delivered to the mapping server 400, in this case, the mapping server 400, as soon as the mapping between the smart terminal 300 and the offline merchant client 100 is made to the coupon server 500 The coupon server 500 may be changed in a manner of notifying the off-line merchant client 100 if the electronic coupon is valid after checking it in the electronic coupon issuance history stored in its database.

6 is a flowchart illustrating a credit card payment process according to another embodiment of an electronic commerce support method using time and location synchronization of the present invention. As shown in FIG. 6, in order to make a credit card payment according to an embodiment of the present invention, the smart terminal 300 and the offline merchant client 100 may also use the respective applications according to the present invention, that is, the terminal application and the merchant application. Execution (step S210 and step S212). In addition, the offline merchant client 100 notifies the merchant application that a future procedure is related to credit card payment by pressing a "credit card payment" button on the user interface screen of the merchant application as shown in FIG. Step S214).

In this state, when the customer lightly contacts the smart terminal 300 that he carries with the contact sensor 110 connected to the offline merchant client 100 according to the guidance of the offline merchant clerk, the offline merchant client 100 contacts the sensor. Recognize the operation of the operation 110 (step S220) and immediately deliver it to the merchant application, and the merchant application immediately receives the identification information of the own merchant, for example, the merchant ID and the contact time information to the mapping server 400. The transfer request (step S222) to approve the use of the electronic coupon. In this regard, the merchant application stores the site address of the mapping server 400 in advance, and the mapping server 400 stores the merchant ID and location information of the affiliate store for the affiliated offline client 100 in advance as a database. Should be. Of course, the merchant application itself may store the location information of the merchant and may read it and transmit it together when transmitting the merchant identification information.

Meanwhile, at the same time, the terminal application of the smart terminal 300 determines whether the motion is recognized by the motion sensor 330 (step S230), and if there is motion recognition, the terminal identification information, for example, the mobile phone number and the like. The recognition time information and the location information received from the GPS module 320 are transmitted to the mapping server 400 (step S232).

Then, the mapping server 400 checks the time information and location information received from the offline merchant client 100 and the smart terminal 300, respectively, and maps the matched offline merchant client and the smart terminal to each other (step S240). If there is a matching smart terminal and offline merchant client (step S242), the merchant terminal identification information, terminal identification information and payment information (payment amount or installment, etc.) to the payment server 600, the corresponding smart terminal 300 Request to approve the credit card payment (step S244).

Then, the payment server 600 requests the payment processing to the smart terminal 300 having the terminal identification information (step S246). In response, the user selects a credit card to be used for payment from the electronic credit card stored in the USIM chip or the secure memory on the terminal application (step S250), and then inputs the corresponding password in the password input window (step S252). Then, the terminal application transmits the selected and input credit card information (card number and expiration date, etc.) and password to the payment server 600, which is preferably encrypted and transmitted for security.

Next, the payment server 600 determines whether the password for the credit card information received in this way matches the pre-registered password, and if it does not match the smart terminal 300 notifies that the authorization is impossible while matching In the case of approving the payment (step S264), the fact is also notified to the offline merchant client 100. Finally, the payment server 600 stores the payment details in its database (step S268).

On the other hand, unlike the above-described embodiment, the mapping server may be integrated with the payment server.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the technical idea of the present invention. For example, if the smart terminal is not equipped with a GPS module, even though it is incorrect, the base station of the mobile communication network may identify the location of the smart terminal by triangulation according to the sensitivity of the wireless signal received from the smart terminal. Furthermore, the time when the touch sensor is pressed is replaced with the time when the touch sensor is pressed while the "contact check button" is provided on the user interface screen as shown in FIG. 3 without connecting the touch sensor to the offline merchant client. It may be possible to operate the method of the present invention.

100: offline merchant client, 110: contact sensor,
200: internet, 210: mobile network,
220: wireless internet network (access point), 300: smart terminal,
310: CPU, 320: GPS module,
330: motion sensor, 340: key input,
350: Wi-Fi module, 360: mobile communication module,
370: memory, 380: display,
400: mapping server, 500: coupon server,
600: payment server

Claims (7)

The mapping server is performed by the mapping server in a state of being connected by a wired / wireless network with an offline merchant client having a merchant application and a smart terminal of a customer who has a terminal application installed.
(A) receiving terminal identification information, motion recognition time information, and current location information from the smart terminal;
(B) receiving affiliate store identification information, electronic commerce request information, and request time information from an offline affiliate store client;
After confirming the location of the offline affiliated client by the affiliated store identification information, the mobile terminal compares the current location information with the current location information, compares the motion recognition time information with the electronic commerce request time information, and offline the smart terminal that exists at the same location at the same time. (C) mapping the merchant client and
And (d) supporting electronic commerce between the mapped smart terminal and the affiliated store client based on the terminal identification information and the affiliated store identification information. The method of claim 1,
The electronic commerce is an electronic coupon issuance operation, and the mapping server requests a smart terminal having the terminal identification information mapped in the step (c) by requesting itself or an external coupon server of the electronic commerce support in the step (d). E-commerce support method using time and location synchronization, characterized in that for issuing the electronic coupon as part. The method of claim 2,
The electronic commerce is an electronic coupon use operation, and the mapping server requests the electronic coupon to be used for the smart terminal having the terminal identification information mapped in the step (c) and receives the electronic coupon, and then inquires its own electronic coupon issuance database. (D) Approving the use of the electronic coupon as part of the e-commerce support in step (d), and transmitting the fact of approval to the offline merchant client if the external coupon server requests approval. E-commerce support method using a. The method of claim 2,
The electronic commerce is an electronic coupon use operation, and the mapping server receives the electronic coupon along with the terminal identification information, the motion recognition time information, and the current location information in step (a), and then inquires its own electronic coupon issuance database. Or requesting an approval from an external coupon server, if it is valid, approving the use of the electronic coupon as part of the e-commerce support in step (d) and delivering the approval fact to the offline merchant client. How to support e-commerce using motivation. The method of claim 1,
The e-commerce is a credit card payment operation, the mapping server further receives payment information in addition to the merchant identification information, the e-commerce request information and the request time information from the offline merchant client in step (b),
Time to the electronic payment of the step (d) characterized in that the request for approval by passing the terminal identification information, the merchant identification information and the payment information mapped in the step (c) to an external payment server; How to support e-commerce using location synchronization. A computer-readable recording medium containing a program for executing the method of any one of claims 1 to 5. A database that stores merchant identification information for offline merchant clients with location information.
Receiving the merchant identification information, the e-commerce request information, and the request time information from an offline merchant client, receiving terminal identification information, motion recognition time information, and current location information from a smart terminal, and querying the merchant identification information in the database. After confirming the location of the offline affiliated client client and comparing the current location information and the motion recognition time information with the e-commerce request time information to map the smart terminal and the offline merchant client existing in the same location at the same time E-commerce supporting apparatus using time and location synchronization made by including a mapping server for supporting the requested e-commerce.
KR1020100102864A 2010-10-21 2010-10-21 Commercial trade supporting method using synchronization of time and location KR20120041420A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101466962B1 (en) * 2012-07-09 2014-12-03 주식회사 케이티 Method and system for providing service

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101466962B1 (en) * 2012-07-09 2014-12-03 주식회사 케이티 Method and system for providing service

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