JP3582439B2 - Dish and reader / writer - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a plate formed in a crescent shape in which a peripheral portion is partially concave in an arc shape, and a reader / writer that reads and writes an ID tag provided on the plate.
[0002]
[Problems to be solved by the invention]
For example, in a rotating sushi shop, a circular or square plate is transported using an endless loop conveyor. In recent rotating sushi shops, there is a tendency to increase the size of the sushi material in order to increase customer satisfaction, and with the increase in the size of the sushi material, the dishes used are also changing to larger ones.
[0003]
However, when the size of the plate is increased, the number of plates that can be placed on the conveyor decreases. In a rotating sushi shop, usually, a plurality of dishes are provided for one kind of sushi material. Therefore, a decrease in the number of dishes that can be placed on the conveyor means that the number of kinds of rotating sushi material is reduced, and many kinds of sushi materials are reduced. The special feature of rotating sushi shops is that they can freely select any of the sushi ingredients.
[0004]
Recently, a rotating sushi shop has been adopting a system for shortening the settlement time by attaching an ID tag for reading and writing information by a radio signal to a plate. In this payment system, a reader / writer reads price information from an ID tag attached to a plate and writes it on a payment card, and a customer takes the payment card to a cash register and makes payment.
[0005]
The ID tag has an antenna coil, and communicates with a reader / writer by radio waves via the antenna coil. As the ID tag, a type external to a power supply without a battery is used, and an operation power supply is obtained by a power radio signal transmitted from a reader / writer. In this case, in order to efficiently transmit electric power radio waves from the reader / writer to the ID tag side of the plate, it is preferable to bring the reader / writer close to the antenna coil of the plate. Has a limit.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to increase the number that can be put on a conveyor of a rotating sushi shop, and to bring a dish antenna coil and a reader / writer antenna closer to each other. An object of the present invention is to provide a dish and a reader / writer capable of transmitting and receiving a radio signal in a state.
[0007]
[Means for Solving the Problems]
The dish according to the first aspect of the present invention is a dish main body formed in a crescent shape in which a peripheral portion is partially concave in an arc shape, and a peripheral portion is provided at a bottom portion of the dish main body, and the peripheral portion partially follows the crescent shape of the dish main body. A thread bottom formed in a crescent shape concaved in an arc shape, an ID tag provided on the dish main body or the thread bottom, and a thread bottom provided along the periphery forming the crescent shape to read and write to the ID tag An antenna coil for transmitting and receiving data to and from an external reader / writer by a radio signal is provided .
According to this configuration, the number of dishes that can be placed on the conveyor is increased by placing the dishes on the conveyor such that portions other than the recessed portions of the adjacent dishes fall into the arc-shaped recessed portions of the dishes. Also , since the antenna coil of the ID tag is provided on the thread bottom of the dish body, if the reader / writer is inserted inside the recessed part, the antenna of the reader / writer can be brought closer to the antenna coil of the ID tag. Can be. For this reason, transmission and reception of a radio signal between the ID tag and the reader / writer can be performed efficiently. In addition, the thread bottom of the dish is formed in a crescent shape following the crescent shape of the dish body, and the antenna coil of the ID tag is provided along the crescent-shaped periphery of the thread bottom. The antenna of the reader / writer can be moved closer within a certain length range, and the transmission and reception of the radio signal can be more efficiently performed.
[0008]
According to a second aspect of the present invention, there is provided a reader / writer which is formed to have a radius of curvature substantially equal to a radius of curvature of an arc-shaped concave portion of the dish main body, and is located inside the arc-shaped concave portion of the dish main body. A main body having a convex portion, and an antenna disposed on the convex portion of the main body and transmitting and receiving a radio signal between the antenna coil of the plate and the antenna; The coil for use is arranged so as to face the same direction as the direction of the convex portion, and is formed in an arc shape following the arc-shaped convex portion of the main body .
In this configuration, an arc-shaped convex portion is provided in the reader / writer, and the antenna arranged on the convex portion is formed in an arc shape following the convex portion, so that the antenna of the reader / writer is brought closer to the antenna coil of the dish. be able to.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings, applying to a tallying system of a rotating sushi shop.
First, a rotating sushi shop is a shop with the following system. An endless closed-loop conveyor is provided in the store, and customer seats are provided along the conveyor. Sushi is placed on a plate and transported to the audience by a conveyor. Customer is, from among the dishes that come carried by a conveyor, take the dish sushi tastes have been placed, dishes finished eating is going to put superimposed on the table. The shop places the sushi on a plate of a color or pattern corresponding to the price, so that the customer can know the approximate amount to be paid to the store from the type and the number of the stacked plates. After the meal, the clerk counts the number of dishes by color or pattern, and calculates the amount to be paid to the store.
[0010]
As shown in FIGS. 1 and 2, the dish 1 on which sushi is placed is made of plastic such as melamine resin, and has an antenna coil 2 for transmitting and receiving radio signals and a tag body 3 inside. An ID tag 4 is embedded as a data carrier consisting of. As shown in FIG. 7, the tag main body 3 is configured by mounting a resonance capacitor 5, a control IC chip 6, and a smoothing unit 7 on a printed circuit board 8.
[0011]
The control IC chip 6 is a one-chip semiconductor element constituting a rectifier 10, a modulator / demodulator 11, a memory 12, etc., in addition to an MPU (microprocessor unit) 9 as a control means. The antenna coil 2 and the resonance capacitor 5 are connected in parallel to form a resonance circuit. When a predetermined high-frequency power radio signal is transmitted from the outside, the signal is received by the antenna coil 2 and received. The obtained power radio signal is input to the rectifier 10. The rectification unit 10 constitutes a power supply circuit as an operation power supply forming unit together with the smoothing unit 7, rectifies and smoothes the electric power radio signal and supplies it to the MPU 9 and the like as a constant voltage DC power supply (operation power supply). I do.
[0012]
A signal such as a command or data sent from an external reader / writer is transmitted by being superimposed on a power radio signal, and the signal is demodulated by the modem unit 11 and provided to the MPU 9. The MPU 9 operates in accordance with an operation program stored in a ROM included in the memory unit 12, executes a process corresponding to a signal input from the modem unit 11, and erases received data from an EEPROM or the like included in the memory unit 12. The data is written to a possible non-volatile memory, or data is read from the memory unit 12, modulated by the modem unit 11, and transmitted as a radio signal from the antenna coil 2.
[0013]
FIG. 5 shows a handheld totalizer 13 as a reader / writer that communicates with the ID tag 4 of the plate 1. The counting device 13 is for detecting the number of dishes of each type eaten by the customer and calculating the amount of payment, and has a built-in battery as a power supply for operation. The counting device 13 is provided with a head 15 at the tip of a hand-held operation unit 14, and the operation unit 14 is provided with various keys (not shown). The display unit 16 (see FIG. 8) is provided.
[0014]
As shown in FIG. 8, an MPU 17, a ROM 18, a RAM 19, and the like are provided inside the handheld totalizer 13. When receiving a signal from the operation unit 14, the MPU 17 operates according to the operation program stored in the ROM 18, and the operation content of the operation unit 14, the total amount, and the like are displayed on the display 16.
[0015]
Further, the head 15 of the counting device 13 is provided with a transmission antenna 20 and a reception antenna 21 for performing communication with the ID tag 4 of the plate 1. When communicating with the plate 1, the MPU 17 first modulates only the carrier signal by the modulating unit 22 and transmits it as a power radio signal from the transmitting unit 23 via the transmitting antenna 20. After that, the MPU 17 reads out the data to be transmitted from the RAM 19, modulates the data to be superimposed on the electric power radio signal by the modulation unit 22, and transmits the data from the transmission unit 23 via the transmission antenna 20.
[0016]
On the other hand, the radio signal transmitted from the dish 1 is received by the receiving unit 24 via the receiving antenna 21, demodulated by the demodulating unit 25, and discriminated as data. The MPU 17 stores the data sent from the demodulation unit 25 in the RAM 19, and finally calculates, for example, the amount to be paid by the customer from the data stored in the RAM 19.
[0017]
As shown in FIGS. 1 and 2, the plate 1 includes a plate body 26 and a thread bottom 27 provided integrally with the outer bottom of the plate body 26. Pan body 26 is formed in a crescent shape peripheral portion forming a circular recessed arcuately portion. The yarn bottom 27 has a relatively large annular shape, and a portion corresponding to the arc-shaped concave portion 28 on the peripheral edge of the dish main body 26 is similarly formed in a crescent shape in which it is concave in an arc shape.
[0018]
The antenna coil 2 is embedded in the thread bottom 27. Therefore, the antenna coil 2 has a crescent shape in which a portion corresponding to the arc-shaped concave portion 29 of the thread bottom 27 is formed in an arc concave shape. The tag main body 3 is embedded in the dish main body 26.
Head 15 of the aggregate 13, the front face is formed in an arc-shaped convex, arcuate convex portion 15a the transmitting antenna 20 and receiving antenna 21 on the inside of the arc-shaped convex portion 15a with the positional relationship between the front and rear It is arranged to be in the same direction as . In this case, the transmitting antenna 20 and the receiving antenna 21 are each formed of a rectangular coil having two opposing sides formed in an arc shape, as shown in FIG. Are positioned so as to follow the arc-shaped convex surface portion 15a. The radius of curvature of the arc-shaped convex portion 15a is set to be substantially the same as the radius of curvature of the arc-shaped concave portion 28 of the plate 1.
[0019]
As described above, according to the present embodiment, since the plate main body 26 has a crescent shape, when the plates 1 are arranged on a conveyor (not shown), as shown in FIG. The plate 1 is placed such that the arc-shaped outer edge of the other plate 1 enters the arc-shaped concave portion 28 of the other plate 1. In this way, the adjacent plates 1 are placed on the conveyor in a state where they are partially overlapped with each other, so that even if the same number of plates 1 are not provided with the arc-shaped concave portions 28, the length of the Is shorter and more dishes 1 can be placed on the conveyor.
[0020]
In addition, since the conveyor has a closed loop shape, there always exists a curved portion. When the plates 1 approach the curve of the conveyor, two plates 1 adjacent to each other are rotated back and forth in time, so that the two plates 1 rub against each other. Since the plate 1 is placed on the conveyor so that the arc-shaped outer edge portion enters, there is a problem that the adjacent plates 1 overlap each other at the curved portion of the conveyor, and the plate 1 is ejected from the conveyor. This can be prevented as much as possible.
[0021]
When totaling the payments of the customers who have finished the meal, as shown in FIG. 4, the dishes 1 are stacked such that the arc-shaped concave portions 28 are aligned at one place. Then, the counting device 13 is turned sideways, and the head 15 is positioned inside the arc-shaped concave portion 28 of the plate 1, and the counting device 13 is moved up and down to communicate with the ID tag 4 of the plate 1 by radio signals. Thereby, the counting device 13 calculates the payment amount based on the data read from the ID tag 4 of the plate 1. Data such as the totaled payment amount is written in the checkout tag, and the customer brings the checkout tag to a cash register and makes a checkout.
[0022]
At the time of communication between the counting device 13 and the ID tag 4 of the plate 1, since the head 15 of the counting device 13 is placed inside the arcuate concave surface 28 of the plate body 26, the antenna 15 embedded in the thread bottom 27 is used. Communication can be performed with the transmission / reception antennas 20 and 21 of the counting device 13 approaching the coil 2. In addition, the arcuate concave portion 2 a of the antenna coil 2 of the ID tag 4 located in the arcuate concave portion 29 of the thread bottom 27 follows the arcuate concave portion 28 of the dish main body 26, and the two antennas 20 and 21 has the arc-shaped portions 20a and 21a that follow the arc-shaped convex portion 15a, so that the antenna coil 2 of the ID tag 4 and both antennas 20 and 21 of the counting device 13 approach each other within a certain length range. In this state, transmission and reception of radio signals can be performed more efficiently.
[0023]
The present invention is not limited to the embodiment described above and shown in the drawings, but can be extended or modified as follows.
The antenna coil 2 and the tag body 3 of the ID tag 4 may be fixed to the plate 1 with an adhesive.
Tag main body 3 may be provided on Itozoko 2 7.
The thread bottom 27 may be circular without the arc-shaped recess 29.
The front surface of the head 15 of the counting device 13 may be a flat surface without the arc-shaped convex portion 15a.
The transmitting antenna 20 and the receiving antenna 21 may not have the arc-shaped portions 20a and 21a.
[Brief description of the drawings]
FIG. 1 is a bottom view of a dish showing one embodiment of the present invention. FIG. 2 is a perspective view of the dish seen from below. FIG. 3 is a plan view showing the dish arranged side by side. FIG. FIG. 5 is a plan view of the counting device. FIG. 6 is a perspective view of an antenna of the counting device. FIG. 7 is a block diagram showing an electrical configuration of the ID tag. FIG. 8 is a block diagram showing an electrical configuration of the counting device. Explanation of code]
In the drawing, 1 is a plate, 2 is an antenna coil, 2a is an arc-shaped concave portion, 3 is a tag body, 4 is an ID tag, 13 is a counting device (reader / writer), 15 is a head, 15a is an arc-shaped convex portion, 20 is a transmitting antenna, 21 is a receiving antenna, 20a and 21a are arc-shaped portions, 26 is a dish main body, 27 is a thread bottom, and 28 and 29 are arc-shaped concave portions.

Claims (2)

In a plate that moves while being placed on a conveyor configured in a closed loop,
A dish main body formed in a crescent shape in which a peripheral portion is partially concave in an arc shape ,
A thread bottom formed on the bottom of the dish body, formed in a crescent shape in which a peripheral portion is partially concave in an arc shape following the crescent shape of the dish body,
An ID tag provided on the dish body or the thread bottom;
A dish provided on the bottom of the yarn along a crescent-shaped periphery thereof, the antenna comprising an antenna coil for transmitting / receiving data read / written to / from the ID tag to / from an external reader / writer by a radio signal. . A reader / writer which exchanges data with the ID tag provided on the dish according to claim 1 by a radio signal,
A body having an arc-shaped convex surface portion which is formed to have substantially the same radius of curvature as the radius of curvature of the dish-shaped concave portion of the dish main body and is located inside the arc-shaped concave portion of the dish main body;
An antenna disposed on the convex surface of the main body, for transmitting and receiving a radio signal between the antenna coil of the dish;
The antenna is composed of a coil, and the antenna coil is arranged so as to face in the same direction as the direction of the convex surface portion, and is formed in an arc shape following the circular convex surface portion of the main body. Reader / writer .

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