JP2013008073A - In-shop information distribution system, shop cart information processing device, cart, in-shop information distribution method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an in-shop information distribution system, a shop cart information processing device, a cart, an in-shop information distribution method, and a program.SOLUTION: The in-shop information distribution system includes: a radio tag device which has a unique tag ID; an information terminal which displays information associated with an article put in the cart; a layout storage part which transmits a question signal to the radio tag device and receives a response signal thereto from the radio tag device, and stores an arrangement of shelves in a shop and an antenna ID of an antenna; a respective shelf article information storage part which stores information associated with articles placed on shelves; and a store cart information processing device which obtains the antenna ID of the antenna having received the response signal for the tag ID included in the response signal while the question signal includes a signal inquiring the tag ID, compares those tag ID and antenna ID with an in-shop layout from the layout storage part so as to detect the position of the cart in the shop, and obtains and transmits information associated with articles placed on a shelf nearby the cart from the shelf article information storage part to the information terminal.

Description

  Embodiments described herein relate generally to an in-store information distribution system, a store cart information processing apparatus, a cart, an in-store information distribution method, and a program.

  A shopping cart provided with an information terminal called a smart cart is known as a conventional in-store information distribution system. For example, there is known an apparatus that specifies an in-store position of a cart using RFID and distributes product sales promotion information corresponding to the position to an information terminal (Patent Document 1).

  However, the in-store information distribution system with this structure has a high position detection resolution, such as changing sales promotion information for each product shelf, so the position cannot be specified unless it is close to the product for which information distribution is desired. There is a possibility that the information distribution cannot catch up with the movement of the moving customer and the information distribution cannot be performed in a timely manner. Further, depending on the direction of the cart and the direction of travel, there is a possibility that the customer is not facing the information terminal. Moreover, there is a possibility that screen information may be seen by others.

JP 2006-11617 A

  The problem to be solved by the present invention is to provide an in-store information distribution system that specifies the direction and traveling direction of a cart in order to prepare for information distribution before approaching a product. To provide a cart used in an in-store information distribution system and an in-store information distribution system for estimating the relative position of a cart and a customer from the direction and the direction of travel of the cart in order to prevent the information terminal screen from being viewed and operated by others. It is.

  In order to solve the above-described problems, an in-store information distribution system according to an embodiment is provided in a cart that carries a product placed on a shelf in the store, and is provided in a wireless tag device having a unique tag ID and the cart. An information terminal for displaying information on the product, an interrogator provided on the shelf, for transmitting a question signal to the wireless tag device and receiving a response signal from the wireless tag device, and an antenna having a unique antenna ID A layout storage unit that stores the arrangement of the shelves in the store and an antenna ID of the antenna, each shelf product information storage unit that stores information about the product placed on the shelf, and the tag in the question signal An antenna ID of an antenna that has received the response signal is obtained from the tag ID that includes a signal for inquiring an ID and is included in the response signal. The antenna ID is compared with the in-store layout from the layout storage unit to detect the position of the cart in the store, and the information on the product placed on the shelf near the cart from the shelf product information storage unit And a store cart information processing device to be sent to the information terminal.

The figure which shows schematic structure of one Embodiment. The block diagram showing the system of one embodiment. The figure for demonstrating the example of a wireless tag apparatus. The figure which shows the directivity of a wireless tag apparatus. The figure which shows the method of making it omnidirectional in a horizontal surface. The figure which shows the flowchart for demonstrating the flow of one Embodiment. The figure which shows the flowchart for demonstrating the timing which detects the position of a cart. The figure which shows the flowchart for demonstrating the timing which detects the position of a cart. The figure for demonstrating the timing of a position detection start. The figure which shows the flowchart for demonstrating information terminal display. The figure for demonstrating determination of whether to display advertisement information. The figure which shows the sticking method to the cart of a wireless tag apparatus. The figure which shows the example of a wireless tag apparatus sticking to a cart. The figure which shows wireless tag information. The figure which shows the positional relationship of the antenna for interrogators and a cart. The figure which shows the flowchart for demonstrating the detection of the direction and the advancing direction of a cart. The figure for demonstrating the example of a wireless tag apparatus sticking to a cart. The figure for demonstrating the direction of a movable caster.

  An in-store information distribution system according to an embodiment will be described with reference to the drawings.

<First Embodiment>
As shown in FIG. 1, an in-store information distribution system according to an embodiment includes an information terminal 2 placed on an upper portion of a cart 1 for transportation, a wireless tag device 3 provided on a lower surface of the cart 1, and a wireless device. An antenna 5 that wirelessly transmits an interrogation signal to the tag device 3, a wireless interrogator 4 that transmits the interrogation signal to the antenna 5, a wireless slave device 7, and product information of each shelf and a layout in the store are stored. A store that selects and outputs cart information such as the position and orientation of a cart sent from the store server 11 and the RFID tag device 3 on the cart 1 based on information stored in the store server 11 A cart information processing device 12 and a wireless master device 13 that sends information output from the store cart information processing device 12 to the wireless slave device 7 by wireless communication are provided.

  Since the RFID tag device 3 is provided at the lower side of the side surface of the cart 1, the position and moving direction of the cart 1 are detected by a signal emitted from the RFID tag device 3 as will be described in detail later.

  The store server 11 manages information on the cart 1 for transport used when carrying the product 10, the product shelf 9 on which various products 10 are arranged, and the product 10 placed on the cart 1 and the product shelf 9.

  FIG. 2 illustrates a configuration example of the store server 11 and the store cart information processing apparatus 12. The store server 11, the store cart information processing device 12, and the wireless master device 13 are connected by a LAN cable.

  The store server 11 includes an in-store layout storage unit 50 that stores the layout of the store, that is, the layout of the aisles and display shelves, and each shelf that stores what type of product is placed on each display shelf. Commodity information storage unit 51. The in-store layout storage unit 50 and each shelf merchandise information storage unit 51 exchange information with the provided information extraction unit 52.

  The store cart information processing device 12 includes a provided information extracting unit 52, a cart position detecting unit 53 that detects the position of the cart 1, a cart traveling direction detecting unit 54 that detects the traveling direction of the cart 1, and the direction of the cart 1. It comprises a cart orientation detection unit 55 that detects, a signal transmission / reception unit 56 that transmits / receives signals to / from the wireless master device 13, and a question signal generation unit 57 that generates a question signal.

  In general, a radio tag having directivity characteristics similar to that of a dipole antenna has strong directivity with respect to an incoming radio wave from a direction perpendicular to its length direction, and is partially null with respect to a radio wave from a horizontal direction. It has directivity to become. However, the wireless tag device 3 used in the present embodiment has a strong directivity only in a part of the vertical direction, and has a directivity without a null in the horizontal direction. A configuration example of the wireless tag device 3 of this example is shown in FIG. The wireless tag device 3 has a structure in which one surface is open and a side surface is surrounded by a metal plate 15, and a wireless tag 20 is provided on a metal bottom surface 16 a via an insulating spacer 16, for example. . Since it has such a structure, as shown in FIG. 4, the wireless tag device 3 can have a characteristic of receiving only radio waves from one direction, that is, from the opening. Since the directivity of the wireless tag device 3 is set to a part of the direction, the direction of the cart 1 can be specified. The relationship between the direction of arrival of radio waves and the direction of the cart 1 will be described later.

  In addition, in order to make the wireless tag device 3 non-directional in a horizontal plane, for example, as shown in FIG. 5A, there is a structure in which the wireless tag 20b having flexibility is formed in an annular shape and attached. In addition, as shown in FIG. 5B, there is a structure in which wireless tags 20c, 20d, and 20e having the same ID are provided concentrically. In the RFID tag device 3 shown in FIG. 5B, the positions of adjacent RFID tags 20c, 20d, and 20e are aligned so that the directions of the null directions coincide with each other, thereby minimizing the influence of each other's tag. Can be stopped. Since the directivity of the wireless tag device 3 is omnidirectional, it is possible to grasp that the cart 1 has entered the reading area of the interrogator 4 regardless of the direction of the cart 1.

  Each of the wireless tag devices 3 is previously assigned a tag ID that is an identification code thereof. The ID of the wireless tag device 3 disposed at each position is stored in the in-store layout storage unit 50. In response to the question signal transmitted from the wireless interrogator 4, the wireless tag device 3 answers its own tag ID.

  The tag ID of the wireless tag device 3 in the cart position detection unit 53 of the store cart information processing device 12 is combined with the tag ID of the wireless tag device 3 stored in the store layout storage unit 50 via the provided information extraction unit 52. By collating, it is detected where the cart 1 is in the store.

  The cart advancing direction detector 54 detects the advancing direction of the cart 1 as needed based on information read from the RFID tag device 3 attached to the cart 1. Similarly, the cart orientation detection unit 55 detects the orientation of the cart 1 as needed based on the read information of the wireless tag device 3.

  The signal transmission / reception unit 56 transmits / receives signals to / from the wireless master device 13. By transmitting and receiving signals, information stored in the store cart information processing apparatus 12 is transmitted to the wireless master device 13 and information stored in the wireless master device 13 is received.

  The question signal creation unit 57 included in the store cart information processing apparatus 12 creates a question signal Q and transmits it to the wireless interrogator 4.

  The wireless interrogator 4 installed in the product shelf 9 is connected to the antenna 5 via the coaxial cable 6. The wireless interrogator 4 is connected to the wireless slave unit 7 via the LAN cable 8.

  The antenna 5 connected to the wireless interrogator 4 is installed so that the electric field surface and the horizontal plane coincide with the thickness portions of the shelf boards at the lower part of the shelf and the middle part of the shelf so that the immediate vicinity of the commodity shelf 9 does not become a dead zone. The antenna 5 transmits and receives linearly polarized radio waves, for example, and is arranged along the shelf. The antenna 5 is preferably thin and small so as not to be aesthetically observable.

  The wireless master device 13 is installed outside a sales office such as a store office. The wireless master device 13 communicates with the store server 11 that stores product information and the store cart information processing device 12 that controls the wireless interrogator 4.

  The wireless interrogator 4 radiates a question signal toward the cart 1 via the antenna 5 disposed on the product shelf 9 and reads the ID and the like of the wireless tag device 3. When the wireless tag device 3 attached to the cart 1 enters the tag reading area of the wireless interrogator 4, the wireless tag device 3 returns ID information to the wireless interrogator 4. The wireless interrogator 4 transmits the information of the wireless tag device 3 and the ID information of the antenna 5 to the store cart information processing device 12. Information transmission to the store cart information processing apparatus 12 is performed via the wireless slave device 7 and the wireless master device 13.

  The store cart information processing apparatus 12 associates the position information with the cart ID from the wireless interrogator 4 and the antenna ID of the antenna 5, and determines the associated in-store position. Based on the associated position and cart information, the product information is extracted from the store cart information processing device 12 and transmitted to the information terminal 2. The information terminal 2 is a device that receives the product information and displays the product information on the display screen.

  The operation of the first embodiment will be described according to the flowchart shown in FIG. First, in step S501, the question signal creating unit 57 creates a question signal Q. The question signal Q includes a signal for inquiring the tag ID of the wireless tag device 3 attached to the cart 1 and the address of the information terminal 2 installed in the cart 1.

  The created question signal is sent to the wireless interrogator 4 via the wireless master device 13 and the wireless slave device 7. In the next step S <b> 502, the wireless interrogator 4 transmits an inquiry signal Q to the wireless tag device 3 via the antenna 5.

  In step S503, it is detected whether or not there is a response from the wireless tag device 3. If there is no response in step S503, the process returns to step S502 and continues to transmit the inquiry signal Q.

  On the other hand, when the wireless tag device 3 enters the tag reading area of the wireless interrogator 4, the wireless tag device 3 transmits the tag ID of the wireless tag device 3 and the address of the information terminal 2 as a response to the wireless interrogator 4.

  When there is a response in step S503, the response signal is received by the antenna 5 in step S504. The response signal R includes the tag ID of the wireless tag device 3 and the address of the information terminal installed in the cart to which the wireless tag device 3 is attached.

  In step S505, the antenna 5 adds its own antenna ID to the response signal R, sends it to the wireless interrogator 4, and sends it to the store cart information processing device 12 via the wireless slave device 7 and the wireless master device 13. The response signal R and the antenna ID received by the signal transmission / reception of the store cart information processing apparatus 12 are sent to the provision information extraction unit 52.

  In step S506, the information provision extraction unit 52 of the store cart information processing apparatus 12 receives the store layout stored in the store layout storage unit 50 of the store server 11. The in-store layout storage unit 50 transmits in-store layout data based on the antenna ID to the provided information extraction unit 52. The provided information extraction unit 52 receives the layout data.

  The cart position detection unit 53, the cart advancing direction detection unit 54, and the cart direction detection unit 55 in the store cart information processing apparatus 12 associate the wireless tag ID with the layout data, respectively. Accordingly, in step S508, the cart position detection unit 53 detects the position of the cart, the cart movement direction detection unit 54 detects the movement direction of the cart, and the cart direction detection unit 55 detects the direction of the cart.

  In the next step S509, the provided information extraction unit 52 sends the position, traveling direction, and orientation of the cart 1 to each shelf product information storage unit 51, and requests information on the products on the shelf near the cart 1.

  In response to this request, each shelf product information storage unit 51 transmits data relating to products on the shelf near the cart 1 (proximity shelf product information) to the provision information extraction unit 52.

  In step S <b> 510, the signal transmission / reception unit 56 of the store cart information processing apparatus 12 transmits proximity shelf product information to the wireless master device 13, and the wireless master device 13 instructs the information terminal 2 to display this information. Upon receiving the instruction, the information terminal 2 displays this information.

  In the next step S511, the time is measured and if a predetermined time has elapsed, the process returns to step S501 to create the question signal Q and transmit it again to the wireless tag device 3. Therefore, the position of each cart can be detected every predetermined time.

  Normally, a plurality of carts 1 are moving in the store, and a question signal can be transmitted to them all at once. In response to the inquiry signal, a response signal is issued from the RFID tag device 3 provided with each cart.

  Since these response signals include the tag ID, the cart provided with the tag ID can be detected by the tag ID. Based on the tag ID and the antenna ID added to the response signal, it is possible to detect where the specific cart is in the store and in which direction it is moving. Therefore, even in a normal situation in which a plurality of carts move, it is possible to display information on products that are appropriately placed on nearby shelves on the information terminal of each cart.

  Next, the timing for starting the position detection of the cart 1 will be described. This will be described with reference to FIGS. 7A, 7B, and 8. FIG. The installation distance of a plurality of antennas 5-1, 5-2, 5-3, 5-4 provided on the shelf is a, the width of the antenna tag reading area is L, the shortest distance from the antenna 5 of the product 10 to be promoted B, and the reading area of the wireless tag device 3 is A.

  The moving speed of the cart 1 is, for example, about 0.2 m / s to 1.0 m / s. Further, the time required for determining the position information of the cart 1 and distributing the information is, for example, about 1 second. However, the position detection of the cart 1 is performed only when the distance between the cart 1 and the product 10 is 1 m or more. The reason why the speed is 1 m or more is that the maximum speed at which the cart 1 moves here is 1.0 m / s. Depending on the moving speed of the cart 1, the distance between the cart 1 and the product 10 may be changed.

  The timing at which the position detection of the cart 1 is started when the width L of the tag reading area is 2 m or more will be described.

  As shown in FIG. 8, the position detection is started when the cart 1 enters the reading area A of the antenna 5 closest to the product 10 in the direction of the cart 1. The antenna for the cart 1-1 traveling from the left to the right is 5-2, and the antenna for the cart 1-2 traveling from the right to the left is 5-3, and differs depending on the traveling direction of the cart 1.

  Next, the timing for starting the position detection of the cart 1 when the width L of the tag reading area is 2 m or less and the antenna interval a is larger than L will be described. The timing for starting the position detection of the cart 1-1 proceeding from the left to the right is when entering the tag reading area A of the antenna 5-2 when L / 2 + b> 1m is satisfied.

  The timing for starting the position detection of the cart 1-1 proceeding from the left to the right is when entering the tag reading area A of the antenna 5-1, when L / 2 + b> 1m is not satisfied.

  The timing for starting the position detection of the cart 1-2 that proceeds from right to left is when the tag 5 enters the tag reading area A of the antenna 5-3 when L / 2 + a−b> 1m is satisfied. The timing for starting the position detection of the cart 1-2 that proceeds from right to left is when the tag 5 enters the tag reading area A of the antenna 5-4 when L / 2 + a−b> 1m is not satisfied.

  Similarly, the position detection of the cart 1 starts from a position 1 m or more before the product 10 for the reason described above.

 Next, with reference to FIG. 9 and FIGS. 10 (a) to 10 (b), determination of presence / absence of product information display on the information terminal 2 will be described. The arrow indicates the traveling direction of the cart 1.

 FIG. 10A is an explanatory diagram illustrating a case where the direction of the cart 1 matches the traveling direction of the cart 1. When the direction of the cart 1 matches the traveling direction of the cart 1, it is determined that the customer using the cart 1 is facing the screen of the information terminal 2. In this case, information is displayed on the information terminal 2.

 FIG. 10B is an explanatory diagram showing a case where the direction of the cart 1 and the traveling direction of the cart 1 do not match. When the direction of the cart 1 and the traveling direction of the cart 1 do not match, it is determined that the customer is facing a different direction from the screen of the information terminal 2. In this case, information is not displayed on the information terminal 2.

  In addition, although demonstrated here about the moving speed of the cart 1 as about 1.0 m / s, when the moving speed of the cart 1 is slow, you may deliver the information regarding the latest goods 10. FIG. The moving speed of the cart 1 can be obtained from the residence time of the cart 1 or the like.

  Next, details of equipment used for specifying the orientation of the cart 1 and the traveling direction of the cart 1 are described.

 The wireless tag 20 is a UHF band that can secure a communication distance with a passage width of several meters. A wireless tag 20 having a dipole-type directivity is inexpensive and suitable. The wireless tag 20 preferably has a general size of about 10 cm × 1 cm.

  As shown in FIG. 11, the wireless tag device 3 is preferably attached in a direction in which the horizontal plane and the electric field plane coincide with the lower portion of the cart 1. This is to consider that the cart 1 is stacked and stored in the store and the product 10 is loaded.

  By using the non-directional RFID tag device 3, the response signal emitted from the RFID tag device 3 is read by the antenna 5 regardless of the orientation of the cart 1. In addition, a wireless tag device 3 having directivity that strongly responds to radio waves from a specific direction is provided. Thereby, the direction of the cart 1 is estimated. The directivity of the wireless tag device 3 is as described above.

 By setting the wireless tag device 3 and the antenna 5 as described above, the polarization planes of both can be matched. In addition, the communication distance can be minimized. Therefore, the influence of reflected waves and obstacles can be minimized.

  Next, a method for determining the direction of the cart 1 and the traveling method will be described. The wireless tag device 3-1 shown in FIG. 12 has omnidirectionality and detects in the wireless tag reading area of the antenna 5 regardless of the direction of the cart 1. The wireless tag devices 3-2 and 3-3 have directivity and are attached to the left and right sides of the cart 1, respectively. Of the wireless tag devices 3-2 and 3-3, only the device on the side where the cart 1 faces the antenna 5 is detected in the wireless tag reading area A.

  FIG. 13 shows an identifier 19 held by the wireless tag device 3. The wireless tag device 3 holds an identifier 19 for identifying a cart in the ID information. The identifier 19 specifies whether the RFID tag device 3 is on the left or right side of the cart 1. The identifier 19 holds information of Vender ID, store code, Reserved, Cart No., and tag position.

  When the antenna 5 provided on the product shelf 9 reads the wireless tag device 3-2, the left side of the cart 1 faces the product shelf 9 as shown in FIG. When the antenna 5 provided on the commodity shelf 9 reads the wireless tag 3-3, the right side of the cart 1 faces the shelf as shown in FIG. When the antenna 5 provided on the product shelf 9 does not read the wireless tag devices 3-2 and 3-3 but reads only the wireless tag device 3-1, as shown in FIG. It faces the direction of the shelf 9.

  A case where the RFID tag 20 having the directivity of the dipole antenna type is used as a device that is not suitable as the RFID device 3 used for specifying the orientation of the cart 1 can be cited. If the wireless tag 20 is used as it is, it has directivity on both sides of the cart 1, so that the wireless tag devices 3-2 and 3-3 detect either of the cases shown in FIGS. 14 (a) and 14 (b). The direction in which 1 is facing cannot be specified. Further, since there is a null direction in the horizontal plane that makes it difficult to receive radio waves, the direction in which the cart 1 faces cannot be specified depending on the orientation of the cart 1.

  Next, determination of the traveling direction of the cart 1 will be described with reference to FIGS. 15 and 16. The cart 1 normally moves in a direction along the product shelf 9 as shown in FIGS. 14 (a) and 14 (b). The RFID tag 3 attached to the front and rear of the cart 1 is read along with the movement. For example, as shown in FIG. 16, the RFID tag device 3-1 attached to the front portion of the cart 1, the RFID tag device 3-2 attached to the rear portion, or the RFID tag device 3-3 is read in this order. It can be seen that is pressed. Further, as described above, the direction in which the cart 1 is facing the antenna 5 can be determined by reading either the RFID tag device 3-2 or 3-3 having directivity. By combining these, the traveling direction of the cart 1 is specified.

<Second Embodiment>
Next, a second embodiment will be described with reference to FIG. The difference from the first embodiment is a method for determining the traveling direction of the cart 1. Description of other points similar to those of the first embodiment is omitted.

 FIGS. 17A and 17B are views showing the direction of the movable caster 17 when the cart 1 travels in the direction of the arrow. As shown in FIG. 17A, the wireless tag device 3 is attached to the outer side surface of the movable caster 17 when the cart 1 is facing the traveling direction. Here, the outer side of the movable caster 17 represents the side that can be seen from the side surface when FIG. 17A is the side surface of the cart 1. As shown in FIG. 17A, when the cart 1 is pushed, the movable caster 17 has the wireless tag device 3 facing outward from the cart 1. At this time, the RFID tag device 3 has directivity with respect to the left side of the cart, and the customer views information on products on the shelf on the left side with respect to the traveling direction on the screen of the information terminal provided in the cart. It becomes possible.

 On the other hand, when the customer grasps the handle of the cart and pulls the cart 1, the movable caster 17 is rotated halfway so that the RFID tag device 3 is located inside the cart as shown in FIG. The arrow in FIG. 17C represents the traveling direction of the cart, and the antenna 5 reads the RFID tag device 3-1, the RFID tag device 3-2, or the RFID tag device 3-3. When the cart 1 is directed from the bottom to the top, the RFID tag device 3-2 is read. When the cart 1 is directed from top to bottom, the RFID tag device 3-3 is read. The direction in which the cart 1 comes to the antenna 5 is determined according to the reading status of the wireless tag devices 3-2 and 3-3. Further, the orientation of the cart 1 is determined based on the reading order of the wireless tag device 3. By combining these, the traveling direction of the cart 1 is specified.

 When the antennas 5 on the left and right shelves of the cart 1 read the RFID tag device 3, the RFID tag device 3 may be attached to only one caster 17. The RFID tag device 3 attached to the casters need only be attached to the casters 17 on one side.

  According to the embodiment described above, preparation for information distribution can be made before the cart 1 approaches the product 10. Further, by estimating the relative position of the cart 1 and the customer from the direction and the traveling direction of the cart 1, it is possible to prevent the information terminal screen from being viewed and operated by others.

  Although an embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

1 ... cart,
2 Information terminal,
3 ... wireless tag device 4 ... wireless interrogator,
5 ... Antenna,
6 ... Coaxial cable,
7 ... Wireless cordless handset,
8 ... LAN cable,
9 ... Product shelf,
10 ... commodity,
11 ... store server,
12 ... Store cart information processing device,
13 ... Wireless master unit,
15 ... metal plate,
16 ... spacer,
17 ... movable caster,
18 ... customers,
19 ... identifier,
20 ... wireless tag,
50: In-store layout storage unit,
51... Each shelf product information storage unit,
52 ... Provided information extraction unit,
53 ... Cart position detector,
54... Cart traveling direction detection unit,
55 ... Cart orientation detection unit,
56: Signal transmission / reception unit,
A: RFID tag reading area.

Claims (10)

A wireless tag device provided in a cart carrying goods placed on a shelf in a store and having a unique tag ID;
An information terminal for displaying information about the product provided in the cart;
An interrogator provided on the shelf, for transmitting an interrogation signal to the radio tag device and receiving a response signal from the radio tag device, and an antenna having a unique antenna ID;
A layout storage unit for storing the arrangement of the shelves in the store and the antenna ID of the antenna;
Each shelf product information storage unit that stores information about the product placed on the shelf;
The interrogation signal includes a signal for inquiring the tag ID, and the tag ID included in the response signal obtains the antenna ID of the antenna that has received the response signal. The tag ID and the antenna ID are obtained from the layout storage unit. The position in the store of the cart is detected in comparison with the in-store layout, the information on the product placed on the shelf near the cart is obtained from the shelf product information storage unit, and the information terminal A store cart information processing device to send,
In-store information distribution system.   The store cart information processing apparatus includes a cart traveling direction detection unit that detects a traveling direction of the cart, and a plurality of wireless tag devices provided in the cart are provided in the traveling direction of the cart. The in-store information distribution system according to claim 1, wherein a traveling direction of the cart is detected based on a timing at which the antenna receives a response signal.   The in-store information distribution system according to claim 2, wherein the store cart information processing apparatus includes a cart orientation detection unit that detects the orientation of the cart.   The in-store information according to claim 3, wherein the wireless tag device includes a first wireless tag device provided at a front center of the cart and second wireless tag devices provided on both sides of a rear portion of the cart. Distribution system.   The in-store information distribution system according to any one of claims 1 to 3, wherein the wireless tag device has directivity only in one direction perpendicular to a length direction thereof.   The in-store information distribution system according to claim 5, wherein the wireless tag device is provided in one of the casters rotating the cart. The wireless tag device is provided in a cart carrying goods placed on a shelf in a store and transmits a question signal to the wireless tag device having a unique tag ID, and the wireless tag device is provided by an antenna provided on the shelf and having a unique antenna ID. Based on the tag ID and the antenna ID obtained by receiving the response signal from
The tag ID and antenna ID are compared with the store layout to detect the position of the cart in the store, to obtain information on the product placed on a shelf near the cart, and to the cart Send to the information terminal to display information about the product provided;
Store cart information processing device. Whether to store products placed on shelves in the store,
A caster that holds the car movably and is rotatable about a direction perpendicular to the floor surface;
Two of the casters located on both sides of the car, each provided on the side of the caster, and having a directivity in a part of the horizontal plane,
An omnidirectional RFID tag device provided at a position that does not overlap with the directional RFID tag device and having omnidirectionality in a horizontal plane;
Cart with. Transmitting a question signal to a wireless tag device provided in a cart carrying goods placed on a shelf in a store and having a unique tag ID;
A response signal receiving step of receiving a response signal from the wireless tag device by an antenna provided on the shelf and having a unique antenna ID;
Adding the antenna ID of the antenna that has received the response signal to the response signal;
The position of the cart in the store is detected by comparing the tag ID and the antenna ID with the layout in the store obtained from the layout of the shelf in the store and the layout storage unit that stores the antenna ID of the antenna. And steps to
Obtaining information on the product placed on a shelf near the cart from each shelf product information storage unit storing information on the product placed on the shelf;
Sending information about the product to an information terminal that displays information about the product provided in the cart;
In-store information distribution method comprising: Transmitting a question signal to a wireless tag device provided in a cart carrying goods placed on a shelf in a store and having a unique tag ID;
A response signal receiving step of receiving a response signal from the wireless tag device by an antenna provided on the shelf and having a unique antenna ID;
Adding the antenna ID of the antenna that has received the response signal to the response signal;
The position of the cart in the store is detected by comparing the tag ID and the antenna ID with the layout in the store obtained from the layout of the shelf in the store and the layout storage unit that stores the antenna ID of the antenna. And steps to
Obtaining information on the product placed on a shelf near the cart from each shelf product information storage unit storing information on the product placed on the shelf;
Sending information about the product to an information terminal that displays information about the product provided in the cart;
A program that causes a computer to execute.

Images