JP2005157850A - Non-contact data communication system and non-contact identification tag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-contact data communication system and a non-contact identification tag with which a sum-up result and a calculation result can visually be inspected without using paper at the time of accounting. <P>SOLUTION: When a customer ends eating and drinking and plates are summed up in a revolving sushibar, a reader/writer receives management data including unit price data from the respective non-contact identification tags 3 fitted to the respective plates. Data showing that management data are normally received are transmitted to the respective non-contact identification tags 3. Thus, a whole surface of an electrophoresis display apparatus 37 of the non-contact identification tags 3 is changed into a dark color from a light color as shown in Figure (b). The reader/writer operates unit price data included in management data in an operation part and calculates a total amount. Total amount data are transmitted to one arbitrary non-contact identification tag 3. Thus, the total amount is displayed on the electrophoresis display apparatus 37 of the non-contact identification tag 3 as shown in Figure (c). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a contactless data communication system and a contactless identification tag.

  Conventionally, the accounting method in a sushi restaurant is, first of all, at the eating and drinking table where the customer eats and drinks, the store totals the dishes after eating and drinking for each dish of the same unit price, and fills the result of the counting on the form and passes it to the customer . The customer brings the received paper to the cash register and presents it to the store. The store calculates the total amount from the counting result written on the form and charges the customer, and the customer pays the amount.

  However, such an accounting method is inefficient because it takes time to count the dishes and input at the cash register, and has a problem that a counting error and an input error at the cash register tend to occur.

  For this reason, there has been proposed a method for efficiently and accurately performing accounting processing in a sushi restaurant using a non-contact data communication system including a reader / writer device and a non-contact identification tag (for example, Patent Documents). 1, 2).

  In the method disclosed in Patent Document 1, a non-contact identification tag storing information such as a product type and a unit price is attached to a plate in advance, and after eating and drinking, the non-contact identification attached to each plate at the eating and drinking table. The information stored in the tag is read by a reader / writer device and stored in a memory card. The store reads the information from the memory card that the customer brought to the cash register by a reading device connected to the computer, calculates the payment amount by the computer, and bills the customer.

  Further, in Patent Document 2, after reading the information on each dish with a reader / writer device equipped with a printer and calculating the payment amount with the reader / writer device, the payment amount is converted into characters and barcodes on the printer. A method is shown in which the customer brings this paper to the cash register.

JP-A-11-178694 JP 2003-44941 A

  However, in the method shown in Patent Document 1, since operations such as counting and calculation are automatically performed, accounting is efficient, but the customer cannot know the amount of payment until he goes to the cash register, so he is worried. Have the problem of In addition, whether the reader / writer device fails to read information on some of the dishes that have been eaten or eaten, or whether there is a tabulation error such as erroneously reading information on dishes that have been eaten or eaten by customers in the next seat, Both stores have a problem that they cannot be confirmed on the spot (dining table).

  On the other hand, in the method shown in Patent Document 2, since it is necessary to provide a printer for printing a barcode or the like on the reader / writer device, the reader / writer device is increased in size and waste of paper is caused. If the paper is soiled or folded before going to the cash register from the eating and drinking table, there is a problem that the bar code cannot be read and the accounting efficiency is lowered.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a non-contact data communication system and a non-contact identification tag capable of visually recognizing counting results and calculation results without using paper. It is in.

  The contactless data communication system of the present invention is a contactless data communication system including a reader / writer device and a plurality of contactless identification tags, wherein the reader / writer device is contactless with the contactless identification tag. A second data communication unit having a first data communication unit capable of data communication and a calculation unit capable of calculating data, wherein the non-contact identification tag is capable of data communication without contact with the reader / writer device; And a data storage unit capable of storing data received by the second data communication unit, and a display unit capable of displaying based on the data received by the second data communication unit, the reader The writer device receives the first data stored in the data storage unit of the plurality of contactless identification tags by the first data communication unit, and associates the first data with the first data. Said Lee The third data obtained by calculating the second data acquired by the writer device by the calculation unit is transmitted to at least one non-contact identification tag, and the non-contact identification tag is the display unit And displaying the third data.

  According to this, since the result calculated by the reader / writer device can be visually recognized on the display unit of the non-contact identification tag, the validity of the calculation result can be confirmed on the spot without using paper. Is possible.

  Furthermore, if the total result, breakdown, etc. which became the origin of calculation are displayed on this display part, the operation | work which confirms a calculation result in detail will become easy.

  In this non-contact data communication system, the reader / writer device includes a power supply electromagnetic wave transmission unit that transmits an electromagnetic wave for power supply to the non-contact identification tag during data communication by the first data communication unit. The contactless identification tag may include a driving power generation unit that generates driving power from an electromagnetic wave for power supply transmitted from the reader / writer device.

  According to this, since the non-contact identification tag can be driven by the electromagnetic wave transmitted from the reader / writer device, the non-contact identification tag does not need to have a power source, and is small and thin non-contact identification. A tag can be obtained.

  In the non-contact data communication system, the first data or the second data calculated by the calculation unit includes unit price data of a product, and the third data includes unit price data of the product. Total amount data may be included.

  According to this, since the total amount of the unit price obtained from the data stored in the plurality of contactless identification tags is displayed on the display unit of the contactless identification tag, after the reader / writer device receives the unit price data Soon, both the store clerk and the customer can confirm the total amount.

  In this non-contact data communication system, the non-contact identification tag is used by being attached to a predetermined object, and has a removal detection unit that detects whether or not the non-contact identification tag is removed from the predetermined object. Also good.

  According to this, since the non-contact identification tag has the removal detection unit that detects that the non-contact identification tag has been removed from the predetermined object, the plurality of non-contact identification tags that can communicate with one reader / writer device It is possible to perform different processing depending on what is attached to the object and what is removed. For example, it is possible to prohibit or limit the storage of new data in the data storage unit and the update of display on the display unit with respect to the non-contact identification tag removed from the predetermined object.

  In this contactless data communication system, access to the contactless identification tag may be restricted based on the detection result of the removal detection unit.

  According to this, since access from the outside to the non-contact identification tag removed from the predetermined object is restricted, it is possible to prevent illegal writing or the like to the removed non-contact identification tag.

  In this non-contact data communication system, the reader / writer device displays the first data stored in the data storage unit of the non-contact identification tag by displaying the third data on the display unit. You may show having received normally.

  According to this, since the result calculated by the reader / writer device can be visually recognized on the display unit, the validity of the calculation result can be confirmed on the spot without using paper. . Further, since the first data stored in the data storage unit can be distinguished from the data that is not normally received by the reader / writer device and the data that is not received by the display unit of the non-contact identification tag, reading failure occurs. It is easy to detect a contactless identification tag that has been read or erroneously read.

  The contactless data communication system of the present invention is a contactless data communication system including a reader / writer device and a plurality of contactless identification tags, wherein the reader / writer device is contactless with the contactless identification tag. A first data communication unit capable of data communication, wherein the contactless identification tag includes a second data communication unit capable of contactless data communication with the reader / writer device, and the second data communication. A data storage unit capable of storing the data received by the unit, and a display unit capable of display based on the data received by the second data communication unit, wherein the non-contact identification tag is stored in the data storage unit. When the stored first data is transmitted to the reader / writer device by the second data communication unit, the display unit indicates that the first data has been transmitted.

  According to this, since it is possible to distinguish between the first data transmitted to the reader / writer device and the one not transmitted by the display unit of the non-contact identification tag, the non-reading or misreading may occur. It becomes easy to detect the contact identification tag.

  The contactless data communication system of the present invention is a contactless data communication system including a reader / writer device and a plurality of contactless identification tags, wherein the reader / writer device is contactless with the contactless identification tag. A first data communication unit capable of data communication, wherein the contactless identification tag includes a second data communication unit capable of contactless data communication with the reader / writer device, and the second data communication. A data storage unit capable of storing data received by the unit, and a display unit capable of display based on the data received by the second data communication unit, wherein the reader / writer device includes a plurality of the non-contact devices The first data stored in the data storage unit of the identification tag is received by the first data communication unit, and the first data is stored when the first data is normally received. No. 4 on the contact identification tag The contactless identification tag transmits data, and based on the fourth data, the display unit indicates that the first data is normally received by the reader / writer device. .

  According to this, it is possible to distinguish between the first data received normally by the reader / writer device and the data not received by the display unit of the non-contact identification tag. It becomes easy to detect a non-contact identification tag.

  In this non-contact data communication system, the non-contact identification tag is used by being attached to a predetermined object, and has a removal detection unit that detects whether or not the non-contact identification tag is removed from the predetermined object. Also good.

  According to this, since the non-contact identification tag has the removal detection unit that detects that the non-contact identification tag has been removed from the predetermined object, the plurality of non-contact identification tags that can communicate with one reader / writer device It is possible to perform different processing depending on what is attached to the object and what is removed. For example, it is possible to prohibit or limit the storage of new data in the data storage unit and the update of display on the display unit with respect to the non-contact identification tag removed from the predetermined object.

  In this contactless data communication system, access to the contactless identification tag may be restricted based on the detection result of the removal detection unit.

  According to this, since access from the outside to the non-contact identification tag removed from the predetermined object is restricted, it is possible to prevent illegal writing or the like to the removed non-contact identification tag.

  The non-contact identification tag of the present invention includes a second data communication unit capable of non-contact data communication with a reader / writer device, a data storage unit capable of storing data received by the second data communication unit, A display unit capable of display based on data received by the second data communication unit, and the first data stored in the data storage unit is transferred to the reader / writer device by the second data communication unit. After the transmission, the reader / writer device calculates third data obtained by calculating the second data acquired by the reader / writer device in association with the first data or the first data. The third data is received and displayed on the display unit.

  According to this, since the result calculated by the reader / writer device can be visually recognized on the display unit, the validity of the calculation result can be confirmed on the spot without using paper. .

  Furthermore, if the total result, breakdown, etc. which became the origin of calculation are displayed on this display part, the operation | work which confirms a calculation result in detail will become easy.

  This non-contact identification tag may have a driving power generation unit that generates driving power from an electromagnetic wave for power supply transmitted from the reader / writer device.

  According to this, since the non-contact identification tag can be driven by the electromagnetic wave transmitted from the reader / writer device, the non-contact identification tag does not need to have a power source, and is small and thin non-contact identification. A tag can be obtained.

  In the contactless identification tag, the first data transmitted to the reader / writer device by the second data communication unit includes an ID number for identifying a product or unit price data of the product. In the second data communication unit, the third data received from the reader / writer device may include total amount data obtained by totaling unit price data of the products.

  According to this, since the total amount of the unit price obtained from the data stored in the plurality of contactless identification tags is displayed on the display unit of the contactless identification tag, after the reader / writer device receives the unit price data Soon, both the store clerk and the customer can confirm the total amount.

  The non-contact identification tag may include a removal detection unit that detects whether or not the non-contact identification tag is removed from a predetermined object.

  According to this, since the non-contact identification tag has the removal detection unit that detects that the non-contact identification tag has been removed from the predetermined object, the plurality of non-contact identification tags that can communicate with one reader / writer device It is possible to perform different processing depending on what is attached to the object and what is removed. For example, it is possible to prohibit or limit the storage of new data in the data storage unit and the update of display on the display unit with respect to the non-contact identification tag removed from the predetermined object.

  In this non-contact identification tag, access from the outside may be restricted based on the detection result of the removal detection unit.

  According to this, since the non-contact identification tag removed from the predetermined object restricts access from the outside, it is possible to prevent unauthorized writing or the like to the removed non-contact identification tag.

  In this non-contact identification tag, by displaying the third data on the display unit, the reader / writer device normalizes the first data stored in the data storage unit of the non-contact identification tag. May be received.

  According to this, since the result calculated by the reader / writer device can be visually recognized on the display unit, the validity of the calculation result can be confirmed on the spot without using paper. . Further, since the first data stored in the data storage unit can be distinguished from the data that is not normally received by the reader / writer device and the data that is not received by the display unit of the non-contact identification tag, reading failure occurs. It is easy to detect a contactless identification tag that has been read or erroneously read.

  The non-contact identification tag of the present invention includes a second data communication unit capable of non-contact data communication with a reader / writer device, a data storage unit capable of storing data received by the second data communication unit, A display unit capable of displaying based on the data received by the second data communication unit, and the reader / writer device stores the first data stored in the data storage unit by the second data communication unit. When the first data is transmitted, the display unit indicates that the first data has been transmitted.

  According to this, since it is possible to distinguish between the first data transmitted to the reader / writer device and the one not transmitted by the display unit of the non-contact identification tag, the non-reading or misreading may occur. It becomes easy to detect the contact identification tag.

  The non-contact identification tag of the present invention includes a second data communication unit capable of non-contact data communication with a reader / writer device, a data storage unit capable of storing data received by the second data communication unit, A display unit capable of displaying based on the data received by the second data communication unit, and the reader / writer device stores the first data stored in the data storage unit by the second data communication unit. After the first data is transmitted, the reader / writer device receives the fourth data to be transmitted when the first data is normally received, and the first data is transmitted to the reader based on the fourth data. The display unit indicates that the writer device has successfully received the data.

  According to this, it is possible to distinguish between the first data received normally by the reader / writer device and the data not received by the display unit of the non-contact identification tag. It becomes easy to detect a non-contact identification tag.

  The non-contact identification tag may include a removal detection unit that detects whether or not the non-contact identification tag is removed from a predetermined object.

  According to this, since the non-contact identification tag has the removal detection unit that detects that the non-contact identification tag has been removed from the predetermined object, the plurality of non-contact identification tags that can communicate with one reader / writer device It is possible to perform different processing depending on what is attached to the object and what is removed. For example, it is possible to prohibit or limit the storage of new data in the data storage unit and the update of display on the display unit with respect to the non-contact identification tag removed from the predetermined object.

  In this non-contact identification tag, access from the outside may be restricted based on the detection result of the removal detection unit.

  According to this, since the non-contact identification tag removed from the predetermined object restricts access from the outside, it is possible to prevent unauthorized writing or the like to the removed non-contact identification tag.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the embodiment shown below does not limit the content of the invention described in the claim at all. Further, all of the configurations shown below are not necessarily essential as means for solving the invention described in the claims.

  A configuration of a contactless data communication system according to the present invention will be described with reference to FIG. FIG. 1A is a schematic configuration diagram showing a configuration when the non-contact data communication system according to the present invention is applied to accounting for a sushi restaurant, and FIG. 1B is a non-contact identification tag attached thereto. FIG.

  As shown in FIG. 1A, the contactless data communication system 1 includes a reader / writer device 2 and a plurality of contactless identification tags 3. In this embodiment, contactless identification is performed. The tag 3 is attached to a tray 4 as a predetermined object.

  The reader / writer device 2 writes data such as product name and unit price to the contactless identification tag 3 attached to the plate 4 and reads the management data written to the contactless identification tag 3. Is performed in a non-contact manner.

  The non-contact identification tag 3 is attached to a support portion 4a provided on the side surface of the dish 4 as shown in FIG. The non-contact identification tag 3 is associated with the plate 4 on a one-to-one basis, and performs non-contact data communication using an ID number with the reader / writer device 2 to manage the plate 4. Further, the non-contact identification tag 3 includes a removal detection unit that detects that the tag 3 has been removed from the plate 4. When the tag 3 is removed from the plate 4, the non-contact identification tag 3 detects this and detects it in the reader / writer device 2. It comes to notify. The ID number is unique to each contactless identification tag 3 and is stored in the data storage unit 33 (see FIG. 3) of the contactless identification tag 3.

  The dish 4 is provided with a sushi and other foods and foods on the plate 4 and then transported along a counter or a table along a table. A non-contact identification tag 3 is attached. After the customer receives the sushi and other foods and drinks from the conveying path together with the dishes 4, the dishes 4 are stacked on a counter or table as shown in FIG. 1 (a).

  Next, the configuration of the reader / writer device 2 will be described with reference to FIG. FIG. 2 is a block diagram showing a schematic configuration of the reader / writer device 2.

  As shown in FIG. 2, the reader / writer device 2 includes a data reception unit 20, a data transmission unit 21, a control unit 22, an operation unit 23, a RAM (Random Access Memory) 24, a ROM (Read Only Memory) 25, and a calculation unit. 26, a display unit 27, and an antenna 28. Here, the data receiving unit 20, the data transmitting unit 21, and the antenna 28 constitute a data communication unit 2a as a first data communication unit, and data communication with the non-contact identification tag 3 is performed by the data communication unit 2a. Done.

  The data receiving unit 20 receives data from the non-contact identification tag 3 in a non-contact manner, such as management data stored in the non-contact identification tag 3 or data indicating that the non-contact identification tag 3 has been removed. Can be obtained via the antenna 28.

  The data transmitting unit 21 transmits data such as management data to be written to the contactless identification tag 3, commands, and the like via the antenna 28 in a contactless manner.

  Here, the data communication between the reader / writer device 2 and the non-contact identification tag 3 in the present embodiment mainly uses electromagnetic waves in a long / medium wave band of 250 kHz or less or 13.56 MHz band. An electromagnetic induction method for performing communication is used, and a selective access mode capable of communicating with a specific non-contact identification tag 3 among a plurality of non-contact identification tags 3 in the communication area is used. In this embodiment, since the carrier wave (electromagnetic wave) when transmitting data and commands is used to supply power to the contactless identification tag 3, the data transmission unit 21 and the antenna 28 are connected to the contactless identification tag 3. It also functions as a power supply electromagnetic wave transmission unit that transmits electromagnetic waves for power supply.

  Note that the types of commands for the non-contact identification tag 3 include a response request command, a memory write command, a display command, and the like. When the reader / writer device 2 transmits a response request command, all the non-contact identifications that have received this command are received. From the tag 3, the ID number, management data stored in the data storage unit 33, and the like are transmitted to the reader / writer device 2. The memory write command is a command for designating an ID number and writing data to the data storage unit 33 of the specific non-contact identification tag 3. This is for performing a predetermined display on the electrophoretic display device 37 (see FIG. 3) of the contact identification tag 3.

  The control unit 22 performs overall control of the operation of the reader / writer device 2 by executing a control program stored in the ROM 25 by a CPU (Central Processing Unit) (not shown). As the control contents, first, data by an electromagnetic induction method using the data receiving unit 20 and the data transmitting unit 21 such as reception of data from the non-contact identification tag 3 and transmission of data to the non-contact identification tag 3 is used. There is control of communication processing. Furthermore, control such as a process for changing setting values used when executing the control program according to the operation content of the operation unit 23, display process control for displaying information acquired from the non-contact identification tag 3 on the display unit 27, and the like are performed.

  The operation unit 23 includes an operation switch for turning on / off the power, resetting the program, a setting unit for data contents to be written in the non-contact identification tag 3, and the like.

  The RAM 24 is a memory for temporarily storing data necessary when the control program stored in the ROM 25 is executed by the CPU of the control unit 22. The ROM 25 is a control for controlling the reader / writer device 2 in an integrated manner. This is a read-only memory in which programs are stored.

  The arithmetic unit 26 performs arithmetic operations such as numerical values stored in the RAM 24 and the ROM 25. The display unit 27 includes a display area such as a liquid crystal display and has a function of displaying information acquired from the non-contact identification tag 3, current setting contents of the reader / writer device 2, processing execution status, and the like.

  Next, the configuration of the non-contact identification tag 3 will be described with reference to FIG. FIG. 3 is a block diagram showing a schematic configuration of the contactless identification tag 3.

  As shown in FIG. 3, the contactless identification tag 3 includes a data communication unit 3a as a second data communication unit, a control unit 3b, a data storage unit 33, a removal detection unit 35, and an electrophoretic display device 37 as a display unit. And a power generation unit 38 as a drive power generation unit.

  The data communication unit 3a includes a data receiving unit 30, a data transmitting unit 31, and a coil antenna 39. The data receiving unit 30 transmits the data transmitted from the reader / writer device 2 to the electromagnetic wave. It has a function to receive by the guidance method. Further, the data transmission unit 31 has a function of transmitting data stored in the data storage unit 33 to the reader / writer device 2 by an electromagnetic induction method. Note that these transmissions and receptions are performed via the coil antenna 39.

  The control unit 3b includes a data control unit 32, a voltage monitoring unit 34, and a display processing unit 36. The operation of each unit of the non-contact identification tag 3 is controlled by a logic circuit. Yes. In the present embodiment, the operation of the contactless identification tag 3 is controlled by a logic circuit. However, the present invention is not limited to this, and the operation may be controlled by the CPU executing a control program. .

  The data control unit 32 controls transmission / reception of data in the data communication unit 3a, storage processing of received data, and the like.

  The voltage monitoring unit 34 monitors the voltage of a predetermined circuit in the non-contact identification tag 3.

  The display processing unit 36 performs control for displaying predetermined information on the electrophoretic display device 37 in accordance with a command from the data control unit 32.

  The data storage unit 33 is composed of a non-volatile memory such as a flash memory or a ferroelectric memory (FeRAM), and the management data received from the reader / writer device 2 in response to a command from the data control unit 32. Store the data.

  The removal detection unit 35 includes a mechanism for detecting this as a voltage change in the voltage monitoring unit 34 when the non-contact identification tag 3 attached to the plate 4 is removed from the plate 4.

  The electrophoretic display device 37 is a display device using an electrophoretic phenomenon, and displays data received from the reader / writer device 2. In addition, since the electrophoretic display device 37 has display image holding performance (memory property), if an image is displayed once by applying a voltage, the image can be held even after the voltage is released. It has become.

  Here, the electrophoresis phenomenon is a phenomenon in which fine particles migrate by Coulomb force when an electric field is applied to a dispersion liquid in which charged fine particles (electrophoretic particles) are dispersed in a liquid phase dispersion medium. In this embodiment, a dispersion liquid in which light-colored electrophoretic particles are dispersed in a dark liquid phase dispersion medium is used.

  The power generation unit 38 generates power from a carrier wave (electromagnetic wave) when the reader / writer device 2 transmits data and commands, and supplies the generated power to each unit.

  Next, the configuration of the removal detection unit 35 of the non-contact identification tag 3 will be described with reference to FIG. FIG. 4 is a schematic configuration diagram showing the configuration of the removal detection unit 35.

  As illustrated in FIG. 4, the removal detection unit 35 includes a first detection resistance unit 35 a and a second detection resistance unit 35 b. One end of the first detection resistor 35a is connected to the power supply, the other end is connected to one end of the second detection resistor 35b, and the other end of the second detection resistor 35b is grounded. Yes. A connection portion between the first detection resistor 35 a and the second detection resistor 35 b is connected to the voltage monitoring unit 34.

  That is, the voltage monitoring unit 34 monitors the voltage E3 of the connection portion divided by the first detection resistance unit 35a and the second detection resistance unit 35b.

  Next, a detailed configuration of the non-contact identification tag 3 will be described with reference to FIGS. 5 and 6. Fig.5 (a) is a schematic schematic diagram of the non-contact identification tag 3, FIG.5 (b) is AA sectional drawing in Fig.5 (a). 6A is a cross-sectional view taken along the line AA in a state in which the non-contact identification tag 3 of FIG. 5A is attached to the plate 4, and FIG. 6B is a cross-sectional view of FIG. It is sectional drawing which shows the state from which the non-contact identification tag 3 was removed from the plate | plate 4 in sectional drawing.

  As shown in FIG. 5A, a coil antenna 39 is formed on the substrate 300b by forming a metal spiral in a single stroke along the circumferential shape of the substrate 300b. Here, in this embodiment, the coil antenna 39 is formed by, for example, an ink jet method using metal ink.

  Furthermore, each component 30 to 36, 38 is mounted as one IC chip 301 on the substrate 300b, and an electrophoretic display device 37 is further mounted. Here, in part of the removal detection unit 35, the first detection resistance unit 35 a and the wiring 300 a connected thereto are formed outside the IC chip 301. As shown in FIG. 5B, the first detection resistor 35a and the wiring 300a are in contact with each other so as to be conductive. In addition, the back surface of the non-contact identification tag 3 is provided with an adhesive portion 300c for attaching the non-contact identification tag 3 to the plate 4, but the back surface of the first detection resistor portion 35a includes A different adhesive part 300e is provided in a state where it can be separated from the adhesive part 300c. Here, the adhesive part 300e provided in the first detection resistor part 35a has a stronger adhesive force than the adhesive part 300c.

  For this reason, as shown in FIG. 6A, when the non-contact identification tag 3 attached to the support portion 4a of the plate 4 is removed from the plate 4, the first detection resistor portion 35a becomes as shown in FIG. 6B. As shown in FIG. 3, the non-contact identification tag 3 is separated from the main body and remains on the plate 4.

  Thus, by removing the non-contact identification tag 3 from the plate | plate 4, the 1st resistance part 35a for a detection will be cut | disconnected from the circuit shown in FIG. Therefore, the voltage E3 changes because the voltage divided by the first detection resistor 35a and the second detection resistor 35b is not divided. This voltage change is detected by the voltage monitoring unit 34, and it is detected that the non-contact identification tag 3 has been removed from the dish 4.

  Next, a specific operation when the non-contact data communication system 1 is applied to the accounting for the sushi restaurant will be described with reference to FIG. FIG. 7 is a state diagram showing a display state of the electrophoretic display device 37 of the non-contact identification tag 3, FIG. 7A is a diagram showing a state before counting, and FIG. 7B is a diagram immediately after counting. The figure which shows a state and FIG.7 (c) are figures which show the state which displayed the total amount after aggregation.

  First, as shown in FIG. 1 (b), non-contact identification tags 3 each having a unique ID number stored in advance are attached to the support portions 4a of the plurality of dishes 4. Here, as shown in FIG. 7A, the electrophoretic display device 37 of the non-contact identification tag 3 is set so that the entire surface is light-colored. Then, in the operation unit 23 of the reader / writer device 2, management data to be written to the non-contact identification tags 3 attached to the dishes 4 is set. Here, the management data to be set includes a product name, unit price data, and the like. When these settings are completed, the management data is transmitted via the data transmission unit 21 together with the ID number of the contactless identification tag 3 to be written.

  Each non-contact identification tag 3 receives the management data and ID number transmitted from the reader / writer device 2 through the data receiving unit 30 under the control of the data control unit 32, and the ID number is its own ID number. Management data is stored in the data storage unit 33. Then, response data indicating that these processes have been executed is transmitted to the reader / writer device 2 via the data transmission unit 31.

  The dish 4 in which the management data is stored in the non-contact identification tag 3 is loaded with sushi and other foods and drinks according to the management data on the transport path provided along the counter or table where customers eat and drink. Is delivered to customers. A customer receives arbitrary sushi and food and drink from the conveyance path together with the dishes 4 and stacks the dishes 4 after eating and drinking on a counter or a table.

  When the customer finishes eating and drinking and totals the dishes 4, as shown in FIG. 1A, the store clerk brings the reader / writer device 2 close to the stacked dishes 4 and operates the operation unit 23. As a result, a response request command is transmitted. Each contactless identification tag 3 attached to the stacked dishes 4 receives the response request command, and transmits its own ID number and management data as first data to the reader / writer device 2. By receiving this, the reader / writer device 2 recognizes all the non-contact identification tags 3 that are subject to accounting, and stores the received management data in the RAM 24. Further, fourth data indicating that the management data has been normally received is transmitted together with the display command to the contactless identification tag 3 that has transmitted the management data. As shown in FIG. 7B, the entire surface of the electrophoretic display device 37 is changed to a dark color. Here, the electrophoretic display device 37 of the non-contact identification tag 3 whose management data has not been normally received by the reader / writer device 2 remains light as shown in FIG. Both of the customers can easily know that there is a dish 4 that has been leaked from the tabulation.

  Next, the reader / writer device 2 calculates the total price by calculating the unit price data included in each management data by the calculation unit 26, and uses the accounting details including the product name, unit price, etc. and the total price as the accounting data in the RAM 24. To remember. Thereafter, the reader / writer device 2 transmits the accounting data together with the memory write command to any one contactless identification tag 3 to store it in the data storage unit 33 of the contactless identification tag 3. The total amount data as the third data is transmitted together with the display command, and the total amount is displayed on the electrophoretic display device 37 of the non-contact identification tag 3 as shown in FIG.

  The customer removes the non-contact identification tag 3 on which the total amount is displayed from the tray 4 and brings it to the cash register. At the cash register, the other store clerk receives the accounting data from the non-contact identification tag 3 brought by the customer with the other reader / writer device 2, thereby recognizing the total amount and accounting.

  In addition, when a customer removes the non-contact identification tag 3 from the plate | board 4, this is detected by the voltage monitoring part 34, and the data control part 32 restrict | limits the access to the non-contact identification tag 3 after this. In the present embodiment, when the non-contact identification tag 3 is removed from the dish 4, writing of data to the data storage unit 33 is prohibited, but the display state of the electrophoretic display device 37 can be changed by a display command. It has become.

  Next, the flow of operation processing of the reader / writer device 2 will be described with reference to FIGS. FIG. 8 is a flowchart showing an operation process at the time of counting of the reader / writer device 2, and FIG. 9 is a flowchart showing a flow of an operation process when the reader / writer device 2 writes accounting data to the contactless identification tag 3. It is.

  When the customer's eating and drinking is finished and the dishes 4 after the eating and drinking are totaled, the store clerk operates the operation unit 23 of the reader / writer device 2 to shift to step S700 shown in FIG.

  In step S700, under the control of the control unit 22, a response request command is transmitted to all the contactless identification tags 3 to be accounted for via the data transmission unit 21, and the process proceeds to step S702.

  In step S702, it is determined whether or not a response including the ID number and management data (first data) has been received from any one contactless identification tag 3. If received, the process proceeds to step S704. If not, the process proceeds to step S720.

  In step S704, the received ID number is stored (registered) in the RAM 24, and the process proceeds to step S706.

  In step S706, the management data received together with the ID number is similarly stored (registered) in the RAM 24, and the process proceeds to step S708.

  In step S708, the fourth data indicating that the ID number and the management data are normally received is transmitted together with the display command to the contactless identification tag 3 having the ID number. The entire surface of the electrophoretic display device 37 is changed to a dark color (see FIG. 7B). Furthermore, a command for setting so as not to respond to the subsequent response request command is transmitted to the contactless identification tag 3 once registered, and the process returns to step S700. When this operation is repeated and registration of ID numbers and management data is completed for all contactless identification tags 3 in the communication area, no response is obtained in step S702, and the process proceeds to step S720.

  In step S720, it is determined whether or not a predetermined time has elapsed since a response was not initially obtained. If the predetermined time has not been reached, the process returns to step S700. If the predetermined time has elapsed, it is determined that reception of management data from all the contactless identification tags 3 in the communication area has been completed, and the process proceeds to step S722.

  In step S722, the unit price included in all the registered management data is calculated by the calculation unit 26 to calculate the total amount, and this is stored in the RAM 24. As a result, accounting data including accounting details and a total amount including a plurality of management data is completed. Further, a message indicating that the counting has been completed and the transaction data are displayed on the display unit 27 of the reader / writer device 2, and the processing is completed.

  Next, a flow of operation processing when the reader / writer device 2 writes the transaction data in the contactless identification tag 3 will be described.

  After the counting of the dishes 4 is completed and the clerk confirms the accounting data displayed on the display unit 27, the operation unit 23 of the reader / writer device 2 is operated, and the process proceeds to step S724 shown in FIG.

  In step S724, in order to store the accounting data in the data storage unit 33 of the contactless identification tag 3, the accounting data is transmitted together with a memory write command to any one contactless identification tag 3, The process moves to S726.

  In step S726, it is determined whether a response from the contactless identification tag 3 to the memory write command has been received. If received, the process proceeds to step S732, and if not received, the process proceeds to S728.

  In step S728, when a response from the non-contact identification tag 3 to the memory write command is not received in step S726, it is determined whether or not a predetermined time has elapsed, and if the predetermined time has not been reached, Step S724 is repeated, and if the predetermined time has elapsed, the process proceeds to step S730.

  In step S730, the display unit 27 of the reader / writer device 2 displays the fact that the writing of the accounting data has failed as “write error”, and the process proceeds to step S744.

  In step S732, when a response from the non-contact identification tag 3 to the memory write command is received in step S726, it is determined from the response content whether the non-contact identification tag 3 has been removed from the plate 4. If it has been removed, the process moves to step S734 and a message to that effect is displayed on the display unit 27, and the process moves to step S744. If not removed, the process proceeds to step S736.

  In step S736, in order to display the total amount on the electrophoretic display device 37 of the non-contact identification tag 3, total amount data (third data) is transmitted to the non-contact identification tag 3 together with a display command. Then, the process proceeds to step S738.

  In step S738, it is determined whether a response indicating that the total amount has been normally displayed has been received from the contactless identification tag 3. If received, the process proceeds to step S746, and if not received, the process proceeds to S740.

  In step S740, it is determined whether or not a predetermined time has elapsed when a response indicating that the total amount is normally displayed on the electrophoretic display device 37 of the contactless identification tag 3 is not received in step S738. If the predetermined time has not been reached, step S736 is repeated, and if the predetermined time has elapsed, the process proceeds to step S742.

  In step S742, the display unit 27 of the reader / writer device 2 displays a message indicating that the display of the total amount has failed as “display error”, and the process proceeds to step S744.

  In step S744, when writing to the non-contact identification tag 3 or display of the total amount fails, one other arbitrary non-contact identification tag is selected and the process is repeated from step S724.

  In step S746, the display 27 of the reader / writer device 2 displays a message indicating that the work has been completed normally, and the work is completed.

  According to the above flow, the accounting data is written to the data storage unit 33 of any one of the plurality of contactless identification tags 3 to be checked out, and the electrophoresis of the contactless identification tag 3 is performed. The total amount is displayed on the display device 37.

  Next, the flow of processing of the non-contact identification tag 3 at the time of accounting will be described with reference to FIG. FIG. 10 is a flowchart showing a flow of processing of the contactless identification tag 3 at the time of accounting.

  As shown in FIG. 10, first, in step S800, when the contactless identification tag 3 receives any command from the reader / writer device 2 via the data receiving unit 30, the process proceeds to step S802.

  In step S802, the control unit 3b determines the content of the received command. Here, it is determined whether or not the received command is a memory write command. If the received command is a memory write command, the process proceeds to step S804. If it is any other command, the process proceeds to step S820.

  When the process proceeds to step S804, the voltage monitoring unit 34 determines whether or not a change in the voltage E3 has been detected. If it is detected, the process proceeds to step 806, and if not detected, the process proceeds to step S810. Transition.

  When the process proceeds to step S806, the display processing unit 36 displays on the electrophoretic display device 37 to indicate that the tag has been removed, such as an “x” mark, and the process proceeds to step S808. To do.

  In step S808, the ID number and the data indicating that the tag has been removed are transmitted to the reader / writer device 2 via the data transmission unit 31, and the process ends.

  If no change in voltage E3 is detected in step S804 and the process proceeds to S810, the transaction data received together with the memory write command is stored in the data storage unit 33, and the process proceeds to step S812.

  In step S812, the ID number and the data indicating that the memory writing has been normally performed are transmitted to the reader / writer device 2 via the data transmission unit 31, and the process is terminated.

  In step S802, if the received command is not a memory write command and the process proceeds to step S820, it is determined whether the command is a display command. As a result, if it is a display command, the process proceeds to step 822, and if not, the process proceeds to step S840.

  In step S822, it is determined whether or not the content to be displayed is a display indicating that the reader / writer device 2 has successfully received the management data. If so (if the fourth data is transmitted together with the display command) ) Goes to Step S824, and otherwise, goes to Step S826.

  In step S824, the display processing unit 36 darkens the entire surface of the electrophoretic display device 37, indicating that the reader / writer device 2 has successfully received the management data. Thereafter, the process proceeds to step S812, where the ID number and the data indicating normal display are transmitted to the reader / writer device 2, and the process ends.

  When the process proceeds to step S826, it is determined whether or not the content to be displayed is a display of the total amount. If so, the process proceeds to step S828, and if not, the process proceeds to step S830. .

  In step S828, the display processing unit 36 displays the total amount received as the third data together with the display command on the electrophoretic display device 37. Thereafter, the process proceeds to step S812, where the ID number and the data indicating normal display are transmitted to the reader / writer device 2, and the process ends.

  In step S830, if the content to be displayed is other than the above in the display command, the display process is performed, and the process proceeds to step S812.

  In step S820, if the received command is not a display command and the process proceeds to step S840, it is determined whether or not the command is a response request command. As a result, if it is a response request command, the process proceeds to step S842, and if not, the process proceeds to step S844.

  In step S842, the self ID number and the management data as the first data stored in the data storage unit 33 are transmitted to the reader / writer device 2, and the process ends.

  In step S844, if the received command is other than the commands described above, processing corresponding to each command is performed, and the process ends.

  As described above, according to the contactless data communication system and the contactless identification tag of the present embodiment, the following effects can be obtained.

  (1) According to this embodiment, the reader / writer device 2 calculates the unit price included in the management data of the plurality of contactless identification tags 3 to calculate the total amount, and the total amount is calculated as the contactless identification tag 3. Therefore, both the store clerk and the customer can visually recognize the total amount, and the validity of the calculation result can be confirmed on the spot without using paper.

  (2) According to the present embodiment, the reader / writer device 2 has a power supply electromagnetic wave transmission unit that transmits an electromagnetic wave for power supply to the non-contact identification tag 3. Since it has a driving power generation unit (power generation unit 38) that generates driving power from an electromagnetic wave for power supply transmitted from the writer device 2, a non-contact identification tag can be used with the electromagnetic wave transmitted from the reader / writer device 2. 3 can be driven, and the non-contact identification tag 3 does not need to have a power source such as a battery. As a result, a small and thin non-contact identification tag 3 can be obtained.

  (3) According to this embodiment, since the non-contact identification tag 3 has the removal detection unit 35 that detects whether or not the non-contact identification tag 3 is removed from the dish 4, the non-contact is removed from the dish 4. The identification tag 3 can be prohibited from storing new data in the data storage unit, and unauthorized writing to the removed non-contact identification tag can be prevented.

  (4) According to the present embodiment, after the reader / writer device 2 receives the management data as the first data from the non-contact identification tag 3, the fourth data indicating that the management data is normally received. When transmitting to the non-contact identification tag 3 and receiving the fourth data, the non-contact identification tag 3 changes its own electrophoretic display device 37 to a dark color on the entire surface. For this reason, it is possible to distinguish between the first data received normally by the reader / writer device 2 and the one not received by the electrophoretic display device 37 of the non-contact identification tag 3. As a result, it becomes easy to detect the non-contact identification tag 3 that has been read incorrectly or read incorrectly.

(Modification)
In addition, you may change embodiment of this invention as follows.

  In the embodiment, the unit price of the product mounted on the tray 4 is stored in the non-contact identification tag 3 attached to the tray 4, but the reader / writer device 2 has each ID number of the non-contact identification tag 3. The unit price associated with the above may be provided in a memory such as its own RAM 24 or ROM 25.

  According to this, only the ID number is received as the first data from the non-contact identification tag 3, and the unit price associated with each ID number is read from the own memory as the second data. It is possible to calculate (third data). Furthermore, the unit price associated with each ID number may be stored in advance in a memory such as the RAM 24 or the ROM 25, or after receiving the ID number, a database stored in another storage device is accessed. The unit price associated with each ID number may be obtained and stored in its own memory.

  In the embodiment, the accounting data is written and the total amount is displayed for only one contactless identification tag 3 among the plurality of contactless identification tags 3. You may perform with respect to all the non-contact identification tags 3 of.

  According to this, since the accounting data is written and the total amount is displayed on the non-contact identification tags 3 attached to all the dishes 4 that have been eaten or consumed, the customer can select the non-contact identification tag 3 attached to any of the dishes 4. It may be brought to the cash register, and there is no need to search for the non-contact identification tag 3 on which the total amount is displayed.

  Further, in this case, by displaying the total amount (third data) on the non-contact identification tag 3, it indicates that the management data (first data) has been normally received from the non-contact identification tag 3. May be. According to this, it is not necessary to transmit the display command and the fourth data in order to indicate that the data has been normally received.

  In the embodiment, after the reader / writer device 2 receives the management data (first data) from the contactless identification tag 3, the reader / writer device 2 receives the fourth data indicating that the management data has been normally received. The information is transmitted to the identification tag 3, and the display of the electrophoretic display device 37 of the non-contact identification tag 3 is changed to dark color on the entire surface. The non-contact identification tag 3 transmits management data to the reader / writer device 2. After that, the display of the electrophoretic display device 37 may be changed by itself.

  According to this, since it is possible to distinguish between the management data transmitted to the reader / writer device 2 and the one not transmitted by the display unit of the non-contact identification tag, the fourth data is transmitted together with the display command. Therefore, it is easy to detect the non-contact identification tag 3 that has been read incorrectly or read incorrectly.

  In the embodiment, the reader / writer device 2 transmits accounting data including accounting details and total amount data to the non-contact identification tag 3 together with the memory write command, and then transmits the total amount data together with the display command. The total amount is displayed on the electrophoretic display device 37 of the non-contact identification tag 3. Alternatively, the contactless identification tag 3 may extract the total amount from the transaction data and display it on the electrophoretic display device 37 simply by transmitting the transaction data together with the memory write command.

  According to this, the operation process of the reader / writer device 2 can be simplified. In this case, the accounting data transmitted together with the memory write command is the third data.

  In the above-described embodiment, only the total amount is displayed on the electrophoretic display device 37 of the non-contact identification tag 3, but more detailed information such as accounting details may be displayed.

  According to this, more detailed confirmation is possible, and by allowing customers to bring back the non-contact identification tag 3, it becomes possible to substitute the non-contact identification tag 3 for a receipt, thereby suppressing waste of paper resources. It becomes possible to do. In this case, the contactless identification tag 3 can be collected from the customer by giving the contactless identification tag 3 the role of a discount coupon or coupon. Further, at this time, an advertisement display or a display indicating that it is a coupon may be performed on the electrophoretic display device 37.

  In the above-described embodiment, the voltage monitoring unit 34 and the removal detection unit 35 detect that the non-contact identification tag 3 has been removed from the plate 4 due to a change in the voltage value. You may make it detect that the non-contact identification tag 3 was removed from the plate | plate 4 by other methods, such as detecting the change of an electric current value, utilizing a switch.

  In the embodiment, the first detection resistor 35a is separated from the substrate 300b by removing the non-contact identification tag 3 attached to the plate 4, so that the voltage changes. The location may be the second detection resistor 35b. Furthermore, this is not limited to the detection resistor, but may be a part of the wiring from the power source to the ground potential in FIG.

  -In the said embodiment, although the non-contact data communication system 1 is applied to the accounting of a rotating sushi, an application field is not limited to this, It can apply to the production management of goods, the management of the expiration date of food and drink, etc. is there. In the embodiment, the first data is management data including unit price data, and the third data is accounting data including total amount data. However, the configuration of each data is not limited to this. For example, the number of non-contact identification tags 3 to which the reader / writer device 2 has transmitted the first data may be totaled, and this may be used as the third data. It is also possible to calculate the maximum value, the minimum value, the average value, or the like of these time limits by calculation in the reader / writer device 2 using the management data including the period information, and use this as the third data. .

(A) is a schematic block diagram which shows the structure at the time of applying the non-contact data communication system of this invention to accounting of a rotary sushi restaurant, (b) is a perspective view of the plate with which the non-contact identification tag was attached. 1 is a block diagram showing a schematic configuration of a reader / writer device. The block diagram which shows schematic structure of a non-contact identification tag. The schematic block diagram which shows the structure of the removal detection part of a non-contact identification tag. (A) is a schematic diagram of a non-contact identification tag, (b) is AA sectional drawing in (a). (A) is an expanded sectional view in the state where the non-contact identification tag was attached to the plate, (b) is an enlarged cross-sectional view in the state where the non-contact identification tag was removed from the plate. It is a figure which shows the display state of the electrophoretic display device of a non-contact identification tag, (a) is a figure which shows the state before totaling, (b) is a figure which shows the state immediately after totaling, (c) is totaling The figure which shows the state which displayed the total amount later. The flowchart which shows the flow of the operation | movement process at the time of aggregation of a reader / writer apparatus. The flowchart which shows the flow of the operation | movement process when a reader / writer apparatus writes accounting data in a non-contact identification tag. The flowchart which shows the flow of a process of a non-contact identification tag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Non-contact data communication system, 2 ... Reader / writer apparatus, 2a ... Data communication part as 1st data communication part, 20 ... Data receiving part, 21 ... Data transmission part which comprises the electromagnetic wave transmission part for electric power supply, DESCRIPTION OF SYMBOLS 22 ... Control part, 23 ... Operation part, 24 ... RAM, 25 ... ROM, 26 ... Operation part, 27 ... Display part, 28 ... Antenna which comprises electromagnetic wave transmission part for electric power supply, 3 ... Non-contact identification tag, 3a ... Data communication unit as second data communication unit, 3b ... control unit, 30 ... data reception unit, 31 ... data transmission unit, 32 ... data control unit, 33 ... data storage unit, 34 ... voltage monitoring unit, 35 ... removal Detection unit, 35a ... first detection resistor unit, 35b ... second detection resistor unit, 36 ... display processing unit, 37 ... electrophoretic display device as display unit, 38 ... power source as drive power generation unit Generation unit, 39 ... Ruantena, 300a ... wiring, 300b ... substrate, 300c, 300e ... adhesive portion, 301 ... IC chip, 4 ... dishes as the predetermined material, 4a ... support.

Claims (20)

A contactless data communication system including a reader / writer device and a plurality of contactless identification tags,
The reader / writer device includes a first data communication unit capable of data communication with the non-contact identification tag in a non-contact manner, and an arithmetic unit capable of calculating data,
The non-contact identification tag includes a second data communication unit capable of non-contact data communication with the reader / writer device, a data storage unit capable of storing data received by the second data communication unit, and the first And a display unit capable of display based on the data received by the data communication unit,
The reader / writer device receives first data stored in a data storage unit of a plurality of the contactless identification tags by the first data communication unit, and stores the first data or the first data in the first data communication unit. The third data obtained by calculating the second data associated with the second data acquired by the reader / writer device is transmitted to at least one non-contact identification tag, and the non-contact identification The tag displays the third data on the display unit. The contactless data communication system according to claim 1,
The reader / writer device has a power supply electromagnetic wave transmission unit that transmits an electromagnetic wave for power supply to the contactless identification tag during data communication by the first data communication unit,
The non-contact data communication system, wherein the non-contact identification tag includes a drive power generation unit that generates drive power from an electromagnetic wave for power supply transmitted from the reader / writer device.   The contactless data communication system according to claim 1 or 2, wherein the first data or the second data calculated by the calculation unit includes unit price data of a product, and the third data is A non-contact data communication system including total amount data obtained by summing unit price data of the products.   The contactless data communication system according to any one of claims 1 to 3, wherein the contactless identification tag is used by being attached to a predetermined object, and whether or not the contactless identification tag is removed from the predetermined object. A non-contact data communication system comprising a removal detection unit for detecting the above.   5. The contactless data communication system according to claim 4, wherein access to the contactless identification tag is limited based on a detection result of the removal detection unit.   The contactless data communication system according to any one of claims 1 to 5, wherein the reader / writer device displays the data of the contactless identification tag by displaying the third data on the display unit. A non-contact data communication system, wherein the first data stored in the storage unit is normally received. A contactless data communication system including a reader / writer device and a plurality of contactless identification tags,
The reader / writer device has a first data communication unit capable of non-contact data communication with the non-contact identification tag,
The non-contact identification tag includes a second data communication unit capable of non-contact data communication with the reader / writer device, a data storage unit capable of storing data received by the second data communication unit, and the first A display unit capable of displaying based on data received by the data communication unit of No. 2,
The non-contact identification tag transmits the first data when the first data stored in the data storage unit is transmitted to the reader / writer device by the second data communication unit. A non-contact data communication system characterized by being indicated by the display unit. A contactless data communication system including a reader / writer device and a plurality of contactless identification tags,
The reader / writer device has a first data communication unit capable of non-contact data communication with the non-contact identification tag,
The non-contact identification tag includes a second data communication unit capable of non-contact data communication with the reader / writer device, a data storage unit capable of storing data received by the second data communication unit, and the first A display unit capable of displaying based on data received by the data communication unit of No. 2,
The reader / writer device receives the first data stored in the data storage unit of the plurality of contactless identification tags by the first data communication unit, and receives the first data normally. The fourth data is transmitted to the contactless identification tag storing the first data, and the contactless identification tag is configured to send the first data to the reader / writer based on the fourth data. A non-contact data communication system, wherein the display unit indicates that the data has been normally received by the apparatus.   The contactless data communication system according to claim 8, wherein the contactless identification tag is attached to a predetermined object and used to detect whether the contactless identification tag has been removed from the predetermined object. A contactless data communication system comprising:   The contactless data communication system according to claim 9, wherein access to the contactless identification tag is limited based on a detection result of the removal detection unit. A second data communication unit capable of non-contact data communication with a reader / writer device; a data storage unit capable of storing data received by the second data communication unit; and a second data communication unit A display unit capable of display based on data,
After the first data stored in the data storage unit is transmitted to the reader / writer device by the second data communication unit, the reader / writer device corresponds to the first data or the first data. And receiving the third data obtained by calculating the second data acquired by the reader / writer device, and displaying the third data on the display unit. tag.   12. The non-contact identification tag according to claim 11, further comprising a driving power generation unit that generates driving power from an electromagnetic wave for power supply transmitted from the reader / writer device.   The contactless identification tag according to claim 11 or 12, wherein the first data transmitted to the reader / writer device by the second data communication unit is an ID number for identifying a product or unit price data of the product. And the third data received from the reader / writer device by the second data communication unit includes total amount data obtained by summing unit price data of the products. Contact identification tag.   14. The non-contact identification tag according to claim 11, further comprising a removal detection unit that detects whether or not the non-contact identification tag is removed from a predetermined object. .   15. The non-contact identification tag according to claim 14, wherein access from outside is limited based on a detection result of the removal detection unit.   The contactless identification tag according to any one of claims 11 to 15, wherein the reader / writer device displays a data storage unit of the contactless identification tag by displaying the third data on the display unit. A contactless identification tag, which indicates that the first data stored in is received normally. A second data communication unit capable of non-contact data communication with a reader / writer device; a data storage unit capable of storing data received by the second data communication unit; and a second data communication unit A display unit capable of display based on data,
When the first data stored in the data storage unit is transmitted to the reader / writer device by the second data communication unit, the display unit indicates that the first data has been transmitted. Characteristic contactless identification tag. A second data communication unit capable of non-contact data communication with a reader / writer device; a data storage unit capable of storing data received by the second data communication unit; and a second data communication unit A display unit capable of display based on data,
When the reader / writer device receives the first data normally after the first data stored in the data storage unit is transmitted to the reader / writer device by the second data communication unit. Receiving the fourth data to be transmitted, and based on the fourth data, the display unit indicates that the first data is normally received by the reader / writer device; Identification tag.   19. The non-contact identification tag according to claim 18, further comprising a removal detection unit that detects whether or not the non-contact identification tag has been removed from a predetermined object. The non-contact identification tag according to claim 19, wherein access from outside is limited based on a detection result of the removal detection unit.

Images