KR20090016837A - System and method for shopping using smart cart - Google Patents

Abstract

A shopping system and a shopping method using a smart cart that helps payment are provided to offer the shortest path capable of finding all items included in a wish list of a user who goes to a store, and to display information on products included in the wish list and purchased products in real time, then to help payment by using a smart cart. A smart cart(140) comprises as follows. An RFID reader obtains RFID tag information by recognizing an RFID tag. A wireless transceiver(146) is capable of performing wireless communication with a server of a large mart. A display unit displays at least one of information recognized by the RFID reader and information received by the wireless transceiver. The server of the large mart enables a user to purchase and obtain all products included in a wish list and information on the products to be purchased.

Description

Shopping system and shopping method using smart cart {SYSTEM AND METHOD FOR SHOPPING USING SMART CART}

The present invention relates to a shopping system and a shopping method using a smart cart, and more particularly, to provide a shortest path for finding all items included in a wish list that a user looking for a store wants to purchase, The present invention relates to a shopping system and a shopping method using a smart cart that displays information about goods included in and purchased in real time and helps payment.

With the development of the Internet, an internet purchasing system for purchasing goods online has been developed and commercialized, and it is now an era in which goods can be purchased without going to an offline shopping space. However, in the Internet shopping malls, the delivery accidents occur frequently, and the reliability of the purchased goods is often a problem due to the characteristics of the online. Accordingly, as more customers feel the need to use the conventional offline shopping, offline shopping spaces such as large discount stores are created.

However, in the case of conventional offline shopping, a customer uses a cart prepared in a store to store an item, takes it to a checkout, takes out all the items in the cart, and calculates each barcode. The longer the time, the greater the inconvenience for customers.

In addition, it is very difficult to find an item to be purchased in an increasingly large store, and thus the time required to find all the items to be purchased is gradually increasing.

On the other hand, even if you create a wish list, that is, a wish list and bring it to a store, you cannot immediately check whether you have purchased all the items included in the wish list, and to check this, you must take out and check all the items contained in the cart. There is such a difficulty.

Therefore, the wish list is transmitted by using RF communication or by sending it to the smart cart using internet communication, so that the wish list can be checked directly from the smart cart and the goods contained in the cart are recognized by using RFID technology. You need a technique to check whether you have purchased all the items on the list.

In addition, there is a need for a technology that provides a method of purchasing all the items to be purchased in an increasingly large store in the shortest possible time with the minimum amount of effort. Skill is also needed.

The present invention has been made in accordance with the above-described needs, by providing a shortest path to find all the items included in the wish list (wish list) that the user looking for a store can shorten the time of shopping, the store is enlarged In addition to being able to easily find a desired item in the, and to provide a shopping system and a shopping method using a smart cart that allows only the desired item can be purchased.

On the other hand, another object of the present invention is to display the information contained in the wish list and the purchased goods in real time, and the payment is made by the wireless communication of the cart to update the purchased goods in real time, payment errors It is to provide a shopping system and a shopping method using a smart cart that prevents and shortens the payment time at the cash register.

According to an embodiment of the present invention for achieving the above object, a shopping system including a smart cart and a server of a large mart, the smart cart, an RFID reader for recognizing the RFID tag to obtain RFID tag information, the A wireless transmission and reception unit capable of wireless communication with a server of a large mart, and a display unit for displaying at least one of the information recognized by the RFID reader, the information received by the wireless transceiver, The server of the large mart, There is provided a shopping system for searching for information on an item included in a wish list which is a list of items to be purchased and a shortest path for purchasing all items included in the wish list and transmitting the same to the wireless transceiver.

The RFID tag recognized by the RFID reader may be an RFID tag attached to an item contained in the smart cart or an RFID tag storing a wish list which is a list of items to be purchased.

The wish list stored in the RFID tag may be created in a personal PC and then transmitted to the RFID tag through wireless communication.

The wish list stored in the RFID tag may be created by selecting a desired item through a kiosk provided in a store of a large mart and then transmitted to the RFID tag.

The wish list may be created by a personal PC and stored in a server of the hypermarket through a network communication network.

The server of the large mart,

(a) find the shelf closest to the entrance among the shelves on which the items included in the wish list are displayed;

(b) coordinate the items in the wish list on the found shelves and sort them in order;

(c) save the alignment result as a movement path,

(d) set the last article of the travel route to A,

(e) select the shelf closest to the shelf on which A is located among the shelves on which items included in the wish list are displayed;

(f) coordinate and sort the items in the wish list on the shelf found in (e),

(g) setting the highest and lowest of the items in the wish list sorted in (f) to B and C, respectively,

(h) select the goods of B and C that have the shortest length by comparing the lengths of all the paths from A to B and all the paths from A to C,

(i) After reordering the wish list of the shelf based on the item selected in (h), the sorted result may be stored as a moving path to search for the shortest path.

After (i) the server:

(j) if it is determined that all wish lists existing in the store are found, the route from the store to the parking lot is searched and stored, and then all stored routes are transmitted to the smart cart,

(k) If it is determined that all the wish list existing in the store has not been found, the shortest route can be searched by moving to another floor of the store and returning to (a).

The smart cart may further include an operation unit configured to add up the amount of the goods contained in the smart cart based on the information recognized by the RFID reader.

The wireless transmission / reception unit may transmit the amount of money information of the items added by the operation unit to a payment system.

On the other hand, according to another embodiment of the present invention for achieving the above object, as a shopping method in a system comprising a smart cart and a server of a large mart, the article to be purchased through the RFID reader included in the smart cart Recognizing an RFID tag storing a wish list, which is a list of items, transmitting a wish list obtained through the RFID tag recognition, and searching for the shortest path to purchase all items included in the transmitted wish list A shopping method is provided that includes receiving a result.

The wish list stored in the RFID tag may be created in a personal PC and then transmitted to the RFID tag through wireless communication.

The wish list stored in the RFID tag may be created by selecting a desired item through a kiosk provided in a store of a large mart and then transmitted to the RFID tag.

The shortest path is,

(a) finding a shelf closest to the entrance among shelves on which items included in the wish list are displayed,

(b) coordinate and sort the items in the wish list existing on the found shelf in order;

(c) storing the alignment result as a movement path,

(d) setting the last article of the travel route to A,

(e) selecting a shelf closest to the shelf on which A is located among shelves on which items included in the wish list are displayed,

(f) coordinate and sort items in the wish list existing on the shelf found in step (e),

(g) setting the highest and lowest items among the items in the wish list arranged in step (f) to B and C, respectively;

(h) selecting an article having the shortest length by comparing the lengths of all the paths from A to B with all the paths from A to C, among B and C, and

(i) the search may be performed by rearranging the wish list of the shelf based on the article selected in step (h), and storing the sorting result as a movement path.

The algorithm is

(j) if it is determined that all wish lists existing in the store are found, searching for and storing the route from the store to the parking lot, and transmitting all stored routes to the smart cart, and

(k) If it is determined that all the wish list existing in the store has not been found, the method may further include returning to step (a) after moving to another floor of the store.

The shopping method includes a step of recognizing an RFID tag attached to an article contained in the smart cart by the RFID reader included in the smart cart, and

The method may further include summing an amount of the goods contained in the smart cart based on the RFID tag information attached to the goods.

The shopping method may further include transmitting information about the sum of the sum of the sums of the articles to the payment system.

On the other hand, according to another embodiment of the present invention for achieving the above object, as a shopping method in a system including a server of a smart cart and a large mart, based on a wish list created on a PC and transmitted through a network communication network And performing an algorithm for searching the shortest path from which all items included in the wish list can be purchased, and transmitting information on the shortest path found in the step of performing the algorithm to the smart cart. A shopping method is provided.

Performing the algorithm,

(a) finding a shelf closest to the entrance among shelves on which items included in the wish list are displayed,

(b) coordinate and sort the items in the wish list existing on the found shelf in order;

(c) storing the alignment result as a movement path,

(d) setting the last article of the travel route to A,

(e) selecting a shelf closest to the shelf on which A is located among shelves on which items included in the wish list are displayed,

(f) coordinate and sort items in the wish list existing on the shelf found in step (e),

(g) setting the highest and lowest items among the items in the wish list arranged in step (f) to B and C, respectively;

(h) selecting an article having the shortest length by comparing the lengths of all the paths from A to B with all the paths from A to C, among B and C, and

(i) rearranging the wish list of the shelf based on the article selected in step (h), and storing the sorting result as a movement path.

Performing the algorithm,

(j) if it is determined that all wish lists existing in the store are found, searching for and storing the route from the store to the parking lot, and transmitting all stored routes to the smart cart, and

(k) If it is determined that all the wish list existing in the store has not been found, the method may further include returning to step (a) after moving to another floor of the store.

The shopping method may include: recognizing, by an RFID reader included in the smart cart, an RFID tag attached to an article contained in the smart cart, and an article contained in the smart cart based on RFID tag information attached to the article. It may further comprise the step of summing the amount of.

The shopping method may further include transmitting information on the sum of the sum of the sums of the articles to the payment system.

On the other hand, according to another embodiment of the present invention for achieving the above object, there is provided a computer-readable recording medium having recorded thereon a program for executing any one of the above shopping methods on a computer.

According to the present invention, the user looking for a store can shorten the time for shopping by providing the shortest path to find all the items included in the wish list (wish list) to be purchased, and can easily find the desired item in a large-sized store. In addition, you can buy only what you want.

On the other hand, by displaying the information on the goods and the goods included in the wish list in real time, the payment is made by wireless communication of the cart to update the purchased goods in real time, thereby preventing payment errors, payment at the cash register It can save time.

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

1 shows a schematic configuration of a shopping system 100 according to an embodiment of the present invention.

As shown in FIG. 1, the shopping system 100 of the present invention includes a personal PC 110, an RFID tag 111, a network communication network 120, a server 130 of a large mart, and a smart cart 140. do.

The personal PC 110 is a conventional PC and may communicate with the server 130 of the large mart through the network communication network 120. The user may obtain information about the goods provided by the server 130 of the large mart through the personal PC 110 through a network communication network 120 such as the Internet.

The RFID tag 111 is a tag capable of storing predetermined RFID information. The RFID tag 111 stores user's personal information along with a user's wish list, that is, information about items to be purchased in a large mart. The RFID tag 111 may be a shopping-only tag or a compatible tag compatible with other functions.

The user may configure a wish list through the personal PC 110, the RFID tag 111, or the like connected to the network communication network 120. Specifically, after confirming the goods information provided by the server 130 of the large mart through the personal PC 110 connected to the network communication network 120, and selects the items to purchase their own after configuring the list The wish list can be configured by storing the list in the RFID tag 111.

Alternatively, the wish list may be configured by selecting a desired item through a kiosk provided in the store and displaying the item information and storing the information in the RFID tag 111. In this case, since the wish list is created directly in the store, the wish list can be configured without the personal PC 110.

Meanwhile, after logging in to a web page provided by the server 130 of the large mart using the RFID tag 111 in which the wish list and the personal information are stored, the user stores the wish list in the server 130 of the large mart. You can also make it. Of course, it is also possible to log in directly to the server 130 of a large mart through the personal PC 110 without using the RFID tag 111 in which personal information is stored.

The server 130 of the large mart can communicate with the personal PC 110 through the network communication network 120, provides information on the goods provided in the store of the mart, and the user logs in through the RFID tag 111. A web page can be provided, and a user can upload his / her Wish list using the RFID tag 111 or create the personal Wish list. In addition, based on the wish list to provide an optimal path for the user to find the desired article, which will be described in detail later.

The smart cart 140 may wirelessly communicate with the server 130 of the large mart, and may include a display unit 148 that may display a wish list by recognizing the RFID tag 111. The detailed configuration of the smart cart 140 will be described in detail with reference to FIG. 2.

As shown in FIG. 2, the smart cart 140 includes an RFID reader 142, an RFID antenna 144, a wireless transceiver 146, and a display unit 148.

The RFID reader 142 recognizes the RFID tag 111 in which the wish list and the personal information of the user are stored, so that the information can be displayed on the display unit 148.

The RFID antenna 144 may be provided inside the smart cart 140 to scan an RFID tag attached to an article contained in the cart. That is, when the user shopping in a large mart puts the purchased goods in the cart, the RFID antenna 144 recognizes the RFID tag attached to the goods. This recognition can distinguish between items purchased on the wish list and items not yet purchased.

The wireless transceiver 146 performs wireless communication with the server 130 of the large mart. When the user uploads his wish list to the server 130 of the large mart via the network communication network 120, the server 130 may transmit the wish list to the wireless transceiver 146 of the smart cart 140. The transmitted wish list is displayed on the display unit 148.

On the other hand, the server 130 transmits the information about the items on the wish list, for example, event information, inventory status, price, location in the store together with the wish list or alone, to the display unit 148 To be displayed. To this end, it is also possible to transmit the wish list read from the tag to the server 130 of the hypermarket. Meanwhile, when the RFID reader 142 included in the smart cart 140 does not recognize the RFID tag 111 in which the wish list is stored, the wish list and the article information may be received together from the server 130 of the large mart. .

Information about the article may be stored in a database (not shown) associated with the server 130 of the hypermarket. In addition, the server 130 may perform an algorithm for finding an optimal path of shopping by identifying a location in a store of goods on the wish list and transmit the result, and the wireless transceiver 146 may provide information about the optimum path. To receive and display on the display unit 148. When all the shopping is over and the user arrives at the checkout counter, the wireless transceiver 146 transmits the information about the total amount of the purchased goods to the payment system, and the user pays the amount through the credit card or the RFID tag 111. can do.

The display unit 148 displays a user's wish list, information on items in the wish list, the location of the items, information on whether to purchase the items in the wish list, and the like. On the other hand, the display unit 148 may be provided with a calculation unit inside or connected to a separate calculation unit to automatically calculate and display the total price of the goods purchased to date.

3 illustrates an algorithm for finding an optimal path of shopping performed by the server 130, and FIG. 4 illustrates an example of a shopping process to which the optimal path algorithm is applied.

As shown in FIG. 3, the optimal path algorithm is started by the server receiving a wish list (S310). Receiving the wish list of the server may be performed by the user uploading his wish list to a server of a large mart using an RFID tag or a personal PC, as described above, the RFID tag is recognized by an RFID reader of the smart cart, It may also be achieved by allowing the wireless transceiver to transmit the recognized information to the server.

When the wish list is received, the server stores the location information of each item in the temporary memory (S320). Location information of each item may be stored in a database. When the location information of each item is stored, the shelf 411 nearest to the entrance of the store among the shelves displaying the item is found (S330). Each shelf may be assigned a serial number.

Thereafter, the wish list is extracted from the items displayed on the found shelves (S340), and the respective wish lists are coordinated and sorted in order (S350). In the coordinate method, the direction parallel to the shelf is set in the x direction and the direction perpendicular to the shelf in the y direction with respect to the entire store, and then the position where each wish list is placed corresponds to the x and y coordinates. The serial number assigned to each shelf becomes the coordinate in the y direction, so that the wish list displayed on each shelf has different y coordinates.

If the wish list of the shelf 411 closest to the entrance of the store is coordinated and sorted accordingly, the sorting result is stored as a shopping path (S360). Since the size of the x-coordinate is sorted from the small wish list in step S350, it may be stored as a path passing through the wish list displayed on the shelf in sequence. If the path passing through all the wish lists of the shelf is stored, the position of the last item A and 421 which is excessively stored on the shelf is stored (S370).

Next, it is determined whether all the wish lists existing on the floor currently located in the store are found (S380).

If none is found, the closest shelf 412 among the shelves on which the wish list is displayed is selected from the current shelf, that is, the shelf 411 corresponding to the position of (A) (S381). When the shelf is selected, the wish list existing on the shelf is extracted (S382), and the wish list is coordinated and sorted (S383). The method of coordinate and alignment is the same as the method described in step S350. Then, the first articles B and 422 and the last articles C and 423 are selected in the alignment (S384), and the distances between A-B and A-C are compared. The distance between A-B and A-C is not a straight line distance, and considers the distance from the currently placed shelf 411 to the shelf where B and C exist. For example, the distance between A-B can be considered in two cases. That is, when exiting from the shelf 411 to the left of the shelf 412, there may be a case of exiting from the shelf 411 to the right and entering the right side of the shelf 412. Each distance may be calculated using the x-coordinates of articles A, B, and C. For example, if you exit left from shelf 411 and enter the left side of shelf 412, the distance between AB is the x-coordinate of A plus the x-coordinate of B, and this calculation is the distance between AB and AC Since the distance between the two is to be compared, the vertical distance between the shelves does not need to be considered. In this way, a path having the shortest distance is selected by comparing the distance between A-B and the distance between A-C (all four distances are calculated) (S385). In FIG. 4, C is selected because the distance of AC, i.e., the path of the path starting from A 421 to the right of shelf 411 to the right of shelf 412 and then to C 423 is the shortest. do. If B or C is selected as the selection, the wish list of the corresponding shelves (the shelves in which B and C are displayed) is rearranged (S386) based on the selected B or C and stored as a path (S360). In FIG. 4, C 423 is assigned to the top and B 422 is assigned to the bottom, so that the movement path is stored in the direction from C 423 to B 422 on the shelf 412.

If it is determined in step S380 that all the wish lists existing on the current floor have been found, it is determined whether all items on the wish list of the user have been found (S390). If the wish list is not found, the best path algorithm is repeatedly performed by exiting the floor and moving to another floor (S391) and searching for the item closest to the entrance of the moved other floor (S330). On the other hand, if all the wish list is found, the shortest path from the floor where the final article is located to the parking lot is searched (S400).

Through this process, if the optimum path to purchase all the items in the wish list is obtained, the result may be transmitted to the wireless transceiver 146 of the smart cart 140 (S410) and displayed on the display unit 148. Make sure

The display unit 148 may sequentially display the items to be purchased along with the optimal path for shopping.

Through this optimal path algorithm, by providing the shortest path to find all the items in the wish list, it is possible to shorten the time for shopping, and to easily find only the desired items in the store where the desired size is increased. By doing so, the effect of preventing excessive consumption can also be obtained.

On the other hand, such an optimal path algorithm, based on a wish list obtained through the RFID reader 142 of the smart cart 140 or a wish list stored in the server 130 of the large mart and then transmitted to the smart cart 140, It may be performed in the smart cart 140.

5 illustrates an example of the display unit 148 provided in the smart cart 140.

As shown in FIG. 5, the display unit 148 may provide a window for viewing a wish list, a window for viewing an optimal path of shopping, a window for viewing event information, and a payment window. The display unit 148 may be a touch screen type, and a user may acquire desired information by selecting one of a wish list, an optimal route, event information, and a payment item. For example, in a window displaying a wish list, the purchased goods and the items not yet purchased may be divided and displayed in various ways, and the calculation unit of the display unit 148 calculates the amount to be paid by adding up the prices of the purchased goods. can do. On the other hand, if all items are selected after the payment, the total amount information is transmitted to the payment system through the wireless transmission and reception unit 146, and payment is made through various payment means such as a credit card and an RFID tag.

By doing so, the user can grasp in real time how much the goods he has purchased and the amount of purchase in real time, and the payment is made by communication with a cart that updates the purchased goods in real time, thereby preventing payment errors. You can also minimize the time it takes to calculate by eliminating the time to calculate each item on the counter.

Embodiments according to the present invention can be implemented in the form of program instructions that can be executed by various computer means can be recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

In the present invention as described above has been described by the specific embodiments, such as specific components and limited embodiments and drawings, but this is provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and all the things that are equivalent to or equivalent to the claims as well as the following claims will belong to the scope of the present invention. .

1 is a schematic diagram showing an overall configuration of a shopping system according to an embodiment of the present invention.

2 is a block diagram showing the configuration of a smart cart according to an embodiment of the present invention.

3 is a flowchart illustrating an optimal path algorithm according to an embodiment of the present invention.

4 is an example of a shopping path according to an optimal path algorithm.

5 is an example of a display unit of a smart cart according to an embodiment of the present invention.

Claims (22)

A shopping system including a smart cart and a server of a large mart, wherein the smart cart includes: An RFID reader recognizing the RFID tag to obtain RFID tag information; A wireless transceiving unit capable of wireless communication with the server of the large mart; And A display unit for displaying at least one of information recognized by the RFID reader and information received by the wireless transceiver; The server of the large mart, the shopping system for searching for information on the items included in the wish list that is a list of items to be purchased and the shortest path for purchasing all the items included in the wish list and transmitting them to the wireless transceiver. . The method of claim 1, The RFID tag recognized by the RFID reader is an RFID tag that stores an RFID tag attached to an item contained in the smart cart or a wish list that is a list of items to be purchased. The method of claim 2, The wish list stored in the RFID tag is created in a personal PC and transmitted to the RFID tag via wireless communication. The method of claim 2, The wish list stored in the RFID tag is created by selecting a desired item through a kiosk (kiosk) provided in a store of a large-scale mart, and then transmitted to the RFID tag. The method of claim 1, And the wish list is created by a personal PC and stored in a server of the hypermarket through a network communication network. The method of claim 1, The server of the large mart, (a) find the shelf closest to the entrance among the shelves on which the items included in the wish list are displayed; (b) coordinate the items in the wish list on the found shelves and sort them in order; (c) save the alignment result as a movement path, (d) set the last article of the travel route to A, (e) select the shelf closest to the shelf on which A is located among the shelves on which items included in the wish list are displayed; (f) coordinate and sort the items in the wish list on the shelf found in (e), (g) setting the highest and lowest of the items in the wish list sorted in (f) to B and C, respectively, (h) select the goods of B and C that have the shortest length by comparing the lengths of all the paths from A to B and all the paths from A to C, (i) reordering the wish list of the shelf based on the item selected in (h), and storing the sorting result as a moving path to search for the shortest path. The method of claim 6, After (i) the server: (j) if it is determined that all wish lists existing in the store are found, the route from the store to the parking lot is searched and stored, and then all stored routes are transmitted to the smart cart, (k) If it is determined that not all the wish lists present in the store have been found, the shopping system searches for the shortest route by moving to another floor of the store and returning to (a). The method of claim 1, The smart cart, And a calculator configured to add up the amount of the item contained in the smart cart based on the information recognized by the RFID reader. The method of claim 8, The wireless transceiver, Shopping system for transmitting the amount of money information of the products summed by the operation unit to the payment system. A shopping method in a system including a smart cart and a server of a large mart, Recognizing an RFID tag storing a wish list which is a list of items to be purchased through an RFID reader included in the smart cart; Transmitting a wish list acquired through the RFID tag recognition; And And receiving a search result of the shortest path from which all items included in the transmitted wish list can be purchased. The method of claim 10, The wish list stored in the RFID tag is created in a personal PC and transmitted to the RFID tag through wireless communication. The method of claim 10, The wish list stored in the RFID tag is created by selecting a desired item through a kiosk (kiosk) provided in a store of a large mart, and then transmitted to the RFID tag. The method of claim 10, The shortest path is, (a) finding a shelf closest to the entrance among shelves on which items included in the wish list are displayed; (b) coordinate and sort the items in the wish list existing on the found shelf in order; (c) storing the alignment result as a movement path; (d) setting the last article of the travel route to A; (e) selecting a shelf closest to the shelf in which A is located among shelves on which items included in the wish list are displayed; (f) coordinate and sort the items in the wish list existing on the shelf found in step (e); (g) setting the highest and lowest items among the items in the wish list arranged in step (f) to B and C, respectively; (h) selecting an article having the shortest length by comparing the lengths of all the paths from A to B with all the paths from A to C; And (i) searching by performing an algorithm including rearranging the wish list of the shelf based on the item selected in step (h), and storing the sorting result as a movement path. The method of claim 13, The algorithm is (j) if it is determined that all wish lists existing in the store are found, searching for and storing the route from the store to the parking lot, and transmitting all stored routes to the smart cart; And (k) if it is determined that all the wish list existing in the store has not been found, the method further comprises the step of returning to step (a) after moving to another floor of the store. The method of claim 10, Recognizing, by an RFID reader included in the smart cart, an RFID tag attached to an article contained in the smart cart; And And summing an amount of the goods contained in the smart cart based on the RFID tag information attached to the goods. The method of claim 15, And in the step of adding up the amount of the item, transmitting information about the sum of the amount of the item to a payment system. A shopping method in a system including a smart cart and a server of a large mart, Performing an algorithm for searching the shortest path to purchase all the items included in the wish list, based on the wish list created in the PC and transmitted through a network communication network; And Transmitting information on the shortest path found in the step of performing the algorithm to the smart cart. The method of claim 17, Performing the algorithm, (a) finding a shelf closest to the entrance among shelves on which items included in the wish list are displayed; (b) coordinate and sort the items in the wish list existing on the found shelf in order; (c) storing the alignment result as a movement path; (d) setting the last article of the travel route to A; (e) selecting a shelf closest to the shelf in which A is located among shelves on which items included in the wish list are displayed; (f) coordinate and sort the items in the wish list existing on the shelf found in step (e); (g) setting the highest and lowest items among the items in the wish list arranged in step (f) to B and C, respectively; (h) selecting an article having the shortest length by comparing the lengths of all the paths from A to B with all the paths from A to C; And (i) reordering the wish list of the shelf based on the item selected in step (h), and storing the sorting result as a movement path. The method of claim 18, Performing the algorithm, (j) if it is determined that all wish lists existing in the store are found, searching for and storing the route from the store to the parking lot, and transmitting all stored routes to the smart cart; And (k) if it is determined that all the wish list existing in the store has not been found, the method further comprises the step of returning to step (a) after moving to another floor of the store. The method of claim 17, Recognizing, by an RFID reader included in the smart cart, an RFID tag attached to an article contained in the smart cart; And And summing the amount of the item contained in the smart cart based on the RFID tag information attached to the item. The method of claim 20, And in the step of adding up the amount of the item, transmitting information about the sum of the amount of the item to a payment system. A computer-readable recording medium having recorded thereon a program for executing the method of any one of claims 10 to 21 on a computer.

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