JP4811030B2 - Radio tag transmission / reception device and program capable of visually recognizing reading result - Google Patents

Description

  The present invention enables an operator to easily determine whether or not the wireless tag transmission / reception apparatus has read the wireless tag information when the wireless tag transmission / reception apparatus reads information on the wireless tag attached to the article. The present invention relates to the provision of a wireless tag transmission / reception device and the provision of a program for enabling discrimination.

  In recent years, a method for identifying and managing articles using a wireless tag instead of a conventional bar code has become widespread.

  The wireless tag stores data in a wireless tag for identifying an object and communicates with the wireless tag transmission / reception device by radio waves or electromagnetic waves. Some wireless tags can be used semi-permanently without a battery by a non-contact power transmission technique from the antenna side of the wireless tag transceiver.

  In the conventional management of articles using bar codes, the bar code reader device can read only one bar code per reading. Therefore, when reading is possible, a response indicating that reading has been performed is output, and when reading is not possible, a response indicating that reading was not possible is performed. Therefore, it was easy to confirm the result of readability.

  A feature of the wireless tag is that a plurality of wireless tags can be read simultaneously. This is because when the reading process is performed by the wireless tag transmission / reception device, all the information of the wireless tag existing within the range that can be read by the wireless tag transmission / reception device can be read. When this process operates normally, it is possible to increase the efficiency of work such as inspection of articles with wireless tags attached.

In addition, in order to prevent reading errors when reading a plurality of wireless tags at the same time, if there is association information among a plurality of wireless tags and the association is not possible when the wireless tag transmission / reception apparatus reads them, a reading error occurs. There is also a method of outputting as there is (see, for example, Patent Document 1).
JP 2002-92114 A

  However, in the actual article management by the wireless tag, there are cases where the wireless tag cannot be read due to some factors when the wireless tag is read.

  When reading of a single wireless tag fails, it can be easily determined that reading has failed. However, when a plurality of wireless tags are read at the same time and some of the wireless tags cannot be read, which wireless tag is successfully read and which wireless tag is a read failure. Is unknown. Therefore, it is necessary to reread the wireless tags one by one. This re-reading operation requires a large amount of work and time.

  Also, in the case of a method in which a plurality of wireless tags are associated with each other in advance and managed, it can be seen that reading has failed, but it is necessary to repeat over and over unless all wireless tags are successfully read. there were. There is also a problem that cannot be dealt with when the wireless tag is replaced.

  The present invention includes a receiving unit that receives the RFID tag information from the RFID tag when reading the RFID tag information, and a transmitting unit that transmits a display request to the RFID tag when the RFID tag information is received. It is characterized by having.

  In addition, the wireless communication device further includes second transmission means for transmitting the read request information to the wireless tag.

  Further, the second transmission means further transmits color information.

  In addition, a color table in which product information and color information are associated is provided, and the color information is transmitted based on the color information in the color table.

  Further, the second transmitting means further transmits display time information.

  According to the present invention, since the display is changed only for at least the wireless tag for which the RFID tag information has been successfully read, the operator can easily distinguish between the RFID tag that cannot be read and the RFID tag that has been read, and the work efficiency is improved. Can be realized.

  In addition, according to the present invention, since it is possible to transmit color information, it is possible to change a display color, and furthermore, it is possible to specify a color according to a combination with a product, so that identification is easy.

  In addition, according to the present invention, since the display time can be transmitted, it is possible to eliminate waste of batteries and the like due to continuing display.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing a system configuration diagram.

  In this embodiment, a system in which the wireless tag information transmitting / receiving apparatus 10 obtains information of the wireless tag 20 via the wireless radio wave 30 is taken as an example.

  The wireless tag information transmitting / receiving device 10 includes a wireless tag information transmitting / receiving unit 11 and a processing unit 12, and is connected to the response wireless tag management table 40, the wireless tag product related table 50, and the product management table 60.

  The wireless tag information transmitting / receiving unit 11 is a unit for accessing information held by the wireless tag 20 via the wireless radio wave 30 or the like.

  The processing means 12 performs processing for temporarily storing the information received by the wireless tag information transmitting / receiving means 11 from the wireless tag 20 in the response wireless tag management table 40, or is stored in the wireless tag product related table 50 and the product management table 60. Based on the received information, a process of transmitting to the wireless tag 20 via the wireless tag information transmitting / receiving means 11 is performed.

  FIG. 2 is a diagram illustrating a data configuration of the response wireless tag management table 40.

  In the response wireless tag management table 40, the readable wireless tag 41 is temporarily registered. The readable wireless tag 41 is information temporarily stored by the processing unit 12 when the information of the wireless tag 20 is successfully read by the wireless tag information transmitting / receiving unit 11 and is identifier information for identifying the wireless tag. .

  When a plurality of wireless tags are read, the wireless tag that has been successfully read is stored as the readable wireless tag 41.

  FIG. 3 is a diagram showing a data configuration of the RFID tag product related table 50.

  The wireless tag product related table 50 is a table in which wireless tag identifier information (for example, an individual product identification number referred to in the RFID technology) and a product identification code (for example, JAN (Japan Article Number) code) are combined. 51 and a product identification code 52. The RFID tag product related table 50 is registered in advance.

  The identifier information 51 is information for identifying each wireless tag 20. The product identification code 52 is an identifier for distinguishing the type of product to which the wireless tag 20 is attached, and is, for example, a JAN code.

  FIG. 4 is a diagram illustrating a data configuration of the product management table 60.

  The product management table 60 is a table in which information for each type of product is registered, and includes a product identification code 61, a product name 62, product color information 63, and a light emission color 64. The product management table 60 is registered in advance.

  The product identification code 61 is the same data as the product identification code 52, and is an identifier attached to each type of product. The product name 62 is a product name corresponding to the product identification code 61, and the product color information 63 is product color information corresponding to the product identification code 61. The light emission color information 64 is color information for setting the light emission color when the wireless tag 20 is instructed of the light emission color. Depending on the color balance between the product color information 63 and the light emission color 64, the operator may overlook the light emission, so that the light emission color can be changed according to the color of the product to eliminate such a problem. Information. When the emission color of the wireless tag 20 is a single color or when there is no need to change the color, the setting of the emission color 64 is not necessary.

  FIG. 8 is a diagram illustrating an example of a hardware configuration of the wireless tag transmission / reception device 10. An antenna 18 is attached to the wireless tag information transmitting / receiving device 10. The wireless tag information transmitting / receiving device 10 performs reading and writing processing of information of the wireless tag 20 attached to the article via the antenna 18.

  The wireless tag information transmitting / receiving device 10 includes a CPU (Central Processing Unit) 11 as a calculation unit via a bus, a memory (for example, a RAM (Random Access Memory), etc.) 12 that stores temporary information generated in accordance with the calculation, An input unit 13 including a keyboard and a touch pad, an output unit 14 such as a liquid crystal display, a storage unit 15 such as a hard disk, a network connection unit 16 such as a modem, an antenna 18 and the like are connected.

The CPU 11 is connected to the above-described hardware units via the bus 17, and the CPU 11 controls them and performs various software functions including read and write control according to a control program stored in the storage unit 15. Execute.

  Note that the above-described configuration may be integrated, or a portable terminal that performs transmission / reception with a wireless tag and a computer device that manages product information are configured separately, and wireless communication is performed between the portable terminal and the computer device. Alternatively, the information may be transmitted by a wired or portable storage medium.

  The wireless tag 20 includes a data transmitting / receiving unit 21, a light emitting unit 22, and a time measuring unit 23, and is connected to the light emission color table 70.

  The data transmission / reception means 21 transmits the information when the wireless tag information transmission / reception device 10 receives an information acquisition request for the wireless tag 20, and the wireless tag information transmission / reception device 10 requests the information rewriting of the wireless tag 20. If there is, update or addition of stored information is performed.

  The light emitting means 22 has a function of emitting light when a light emission instruction is received from the wireless tag information transmitting / receiving device 10.

  The time measuring means 23 is a means for measuring time. In this embodiment, the light emission for a predetermined time is continued after the light emission instruction is received. This is a function for measuring the predetermined time.

  FIG. 5 is a diagram illustrating a data configuration of the emission color table 70.

  The light emission color table 70 is a table for emitting a color corresponding to the number in advance when a light emission color number instruction is received. Number 71 is a number for managing colors. The emission color 72 is a color corresponding to the number 71.

  Although not shown, the hardware configuration of the wireless tag 20 includes an IC chip and wireless communication means, and the IC chip includes a calculation unit, a storage unit, a power supply rectification unit, and a transmission / reception unit. The wireless communication means is a coiled antenna connected to the transmission / reception unit of the IC chip, and transmits / receives data via the antenna.

  When the antenna receives a radio signal from the wireless tag transmitting / receiving device 10, an electromotive force is generated by a resonance action because the antenna wire of the antenna is coiled. The IC chip is activated by the generated electromotive force, converts the information stored in the storage unit into a signal, performs calculation processing in the calculation unit based on the signal received from the transmission / reception unit, and stores the calculation result in the storage unit To do. The calculation unit transmits the calculation result stored in the storage unit from the antenna to the wireless tag transmission / reception device 10 via the transmission / reception unit. When there is a light emission instruction, the signal is transmitted to the light emitting unit to emit light. This light emission is possible with a separate power source. Light emission is performed by an LED, liquid crystal, lamp, or the like. When the power for light emission is sufficient by the electromotive force of the antenna, no external power supply is required. Further, since it is only necessary to be able to visually recognize the reading, it is not limited to light emission. For example, according to the principle of electronic paper or the like, it may be in a state where it can be visually discriminated between when light is not emitted but when reading is possible.

  Hereinafter, a flow of processing when the worker reads a plurality of wireless tags at the same time using the wireless tag information transmitting / receiving device 10 will be described.

  FIG. 6 is an operation flowchart of the wireless tag information transmitting / receiving apparatus 10.

  The wireless tag transmitting / receiving apparatus 10 transmits an instruction to read the identifier information of the wireless tag 20 to the wireless tag 20 (S101).

  The wireless tag 20 transmits the identifier information of the wireless tag based on the radio signal of S101, and the wireless tag transmitting / receiving device 10 receives the identifier information (S102).

  When the wireless tag transmission / reception device 10 cannot receive the information of the wireless tag (S102: No), the wireless tag transmission / reception device 10 tries again. Alternatively, an output indicating that reception is not possible is performed.

  On the other hand, when the information can be received (S102: Yes), the wireless tag transmitting / receiving device 10 temporarily stores the received information in the readable wireless tag 41. In this case, the readable wireless tag 41 information may be displayed on the output unit 14 of the wireless tag transceiver 10.

  Thereafter, the identifier information 51 corresponding to the readable wireless tag 41 is searched from the wireless tag product related table 50, and the corresponding product identification code 52 is read (S103).

  The wireless tag transmitting / receiving apparatus 10 reads the emission color information 64 of the data record of the product identification code 61 of the product management table 60 corresponding to the product identification code 52 read in S103 (S104).

  The wireless tag transmitting / receiving device 10 transmits a light emission instruction signal and a light emission color 64 to the wireless tag 20 that has read the information (S105).

  FIG. 7 is a diagram showing an operation flowchart of the wireless tag 20.

  When receiving the read request signal from the wireless tag transceiver 10 (S201), the wireless tag 20 returns the identifier information of the wireless tag (S202).

  Thereafter, when the wireless tag 20 receives a light emission instruction with the light emission color information 64 from the wireless tag transmitting / receiving apparatus 10 (S203), the wireless tag 20 emits light with a corresponding light emission color (S204).

  Furthermore, it is determined that a predetermined time has elapsed (S205), and when the predetermined time has elapsed (S205: Yes), the light emission is stopped (S206). The predetermined time may be set by the wireless tag information transmitting / receiving device 10, and the predetermined time information may be transmitted to the wireless tag together with the light emission instruction information, or may be set in the wireless tag 20 in advance. . For example, when the predetermined time is set to 30 seconds, the wireless tag 20 emits light for 30 seconds when receiving a light emission instruction.

  As described above, according to the present invention, when a plurality of wireless tags are read simultaneously, when reading fails for any wireless tag among the plurality of wireless tags, Since the light is not emitted, the operator can easily select the RFID tag that has failed to be read, and the efficiency of the reading operation can be improved.

  In addition, it is possible not to turn off the light after a certain time from light emission but to continue light emission when light is emitted. This is because it is not necessary to turn off the light if there is no problem with the power even in the light emitting state. For example, it is a system that is turned on at the first inspection, and is continuously turned on thereafter, and is turned off at the second inspection.

  Moreover, it is good also as what changes to the color in each state, whenever a process is completed. For example, it is a system in which the color changes to red at the first inspection and changes to blue at the second inspection.

  In the present embodiment, the description has been made using a so-called passive wireless tag that is a wireless tag that can communicate at a short distance without a built-in battery. It can also be implemented using a wireless tag.

  In the case of an active wireless tag, the wireless tag itself can emit wireless tag information and can operate without the need to transmit non-contact power from the reader. Therefore, at the time of inspection, the reader device can realize the present invention by transmitting a light emission signal to the wireless tag when receiving information from the wireless tag.

In that case, a configuration in which a power source for light emission is shared is also possible.
(Appendix 1)
A transmission / reception device for transmitting / receiving information to / from a wireless tag,
Receiving means for receiving identification information of the wireless tag;
A transmission means for transmitting a display request to the wireless tag when the identification information is received;
A transmission / reception device comprising:
(Appendix 2)
When reading the information of the wireless tag by the receiving means,
The transmission / reception apparatus according to appendix 1, further comprising second transmission means for transmitting read request information to the wireless tag.
(Appendix 3)
The transmission / reception apparatus according to appendix 1, wherein the transmission means further transmits color information together with a display request.
(Appendix 4)
It has a color table that associates product information and color information,
The transmission / reception apparatus according to appendix 3, wherein the transmission means transmits color information based on color information of the color table.
(Appendix 5)
The transmission / reception apparatus according to appendix 1, wherein the transmission means further transmits display time information.
(Appendix 6)
A transmission / reception program for transmitting / receiving information to / from a wireless tag,
Computer
Receiving means for receiving identification information of the wireless tag;
A transmission means for transmitting a display request to the wireless tag when the identification information is received;
A transmission / reception program characterized by functioning as:
(Appendix 7)
When reading the information of the wireless tag in the receiving means,
The transmission / reception program according to appendix 6, further comprising second transmission means for transmitting read request information to the wireless tag.
(Appendix 8)
The transmission / reception program according to appendix 6, wherein the transmission means further transmits color information together with a display request.
(Appendix 9)
It has a color table that associates product information and emission color information,
The transmission / reception program according to appendix 8, wherein the transmission means transmits color information based on the color information of the color table.
(Appendix 10)
The transmission / reception program according to appendix 6, wherein the transmission means further transmits display time information.

System Configuration Data structure of response wireless tag management table 40 Data structure of wireless tag product related table 50 Data structure of product management table 60 Data structure of emission color table 70 Operation flow chart of wireless tag information transmitting / receiving device 10 Operation flowchart of the wireless tag 20 Example of hardware configuration

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Radio tag information transmitter / receiver 20 Radio tag 30 Radio 40 Response radio tag management table 50 Radio tag product related table 60 Product management table 70 Light emission color table

Claims (3)

A transceiver for transmitting and receiving light emitting possible wireless tag information of a plurality of colors,
A tag product related table in which tag identification information indicating an identifier of the wireless tag and product identification information indicating a product identifier are associated;
A product management table storing the product identification information and the emission color information in which the color emitted by the wireless tag is set;
Receiving means for receiving tag identification information from the wireless tag,
Processing means for reading product identification information corresponding to the received tag identification information from the tag product related table, and reading emission color information corresponding to the searched product identification information from the product management table;
Transmission means for transmitting a display request including the emission color information corresponding to the product identification information to the wireless tag that has received the tag identification information by the reception unit and read the product identification information. be that sending and receiving devices. The transmission / reception apparatus according to claim 1, wherein the product management table further stores color information of a product . A transceiver program for executing a plurality of color transmission and reception of light emission can be wireless tag information into the computer,
The computer includes a tag product association table in which tag identification information indicating an identifier of the wireless tag is associated with product identification information indicating a product identifier, and a light emission color in which the product identification information and a color emitted by the wireless tag are set A memory for storing a product management table stored in association with information;
To the computer,
Receiving the tag identification information from the wireless tag,
Read the product identification information corresponding to the received tag identification information from the tag product related table,
Read light emission color information corresponding to the searched product identification information from the product management table,
A display request including the emission color information corresponding to the product identification information is transmitted to the wireless tag that has received the tag identification information by the receiving unit and has read the product identification information.
A transmission / reception program characterized by executing processing .

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