JP3674525B2 - Non-contact ID device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a non-contact ID device including a plurality of tags and a read / write device that reads / writes data to / from the plurality of tags in a non-contact manner. It is related with the non-contact ID apparatus handled as a tag.
[0002]
[Prior art]
By installing tags (storage media) on the surface and inside of assembly line parts and products, ski lift ticket or commuter pass, and placing reader / writer on assembly line, lift platform or ticket gate, There is known a non-contact ID device that performs data management efficiently by reading data recorded in a tag by contact (electromagnetic induction or radio wave) or writing data.
[0003]
FIG. 14 shows a block diagram of a conventional tag (storage medium). FIG. 4A shows a tag with a small memory capacity, and FIG. 4B shows a tag with a relatively large memory capacity. (A) In the figure, a tag 50 is a one-chip IC 52 having a coil 51 for transmitting or receiving data by electromagnetic induction with a reader / writer (not shown), a modem 53, a control logic 54, and a memory 55. It consists of. The memory 55 shows an example in which an EEPROM having a memory capacity of 256 bytes is used.
[0004]
The tag 50 configured as described above is driven by a power source (rectified and smoothed AC signal) supplied by electromagnetic induction from a reader / writer (not shown), and a command (request signal) supplied at the same time is received, and the control logic Data corresponding to the command (request signal) is read from the memory 55 via 54, modulated by the modem 53, and then transmitted from the coil 53 to the reader / writer by electromagnetic induction.
[0005]
On the other hand, when data is supplied by electromagnetic induction from a reader / writer (not shown), the modulation / demodulation unit 53 performs demodulation, and the data is written into the memory 55 via the control logic 54.
[0006]
(B) The tag 56 shown in the figure has the same configuration and operation as the tag 50 shown in (a) except that an EEPROM having a memory capacity of 1 kilobyte is used.
[0007]
As described above, since the conventional tag (storage medium) communicates data with the reader / writer by electromagnetic induction, it does not require a battery, and is small and lightweight. Therefore, the conventional tag (storage medium) is combined with the reader / writer. A non-contact ID device is realized. In place of using electromagnetic induction using a coil, a non-contact ID device using an antenna has been put into practical use.
[0008]
FIG. 15 shows a configuration diagram of a conventional non-contact ID apparatus. In FIG. 15, the non-contact ID device 60 includes a tag 61A and a tag 61B arranged on an object 70, and a reader / writer 62A and a reader / writer 62B arranged facing the tags 61A and 61B, respectively. Then, data communication by electromagnetic induction is executed between the reader / writer 62A and the tag 61A and between the reader / writer 62B and the tag 61B. The reader / writer 62A reads the data recorded in the tag 61A, writes the data and executes data management, and the reader / writer 62B reads the data recorded in the tag 61B in the same manner. Or write data management.
[0009]
FIG. 16 shows another configuration diagram of a conventional non-contact ID device. In FIG. 16, the non-contact ID device 63 includes tags 64A and tags 64B arranged on the object 70, and a reader / writer 65. The reader / writer 65 reads data recorded on the tags 64A and 64B. Or write data and execute data management.
[0010]
In the method shown in FIG. 16, for example, as disclosed in Japanese Patent Laid-Open No. 10-224279 by the present applicant, ID number identification data and a plurality of tags in a command are stored in each memory in response to a command from a reader / writer. Since the tag side sends back a response only when the ID number stored in the ID matches the reader / writer, the reader / writer can read the ID number of each tag. It is configured to identify the required tag.
[0011]
[Problems to be solved by the invention]
As shown in FIG. 14, in the conventional non-contact ID device, there are many cases where the tag is formed as a one-chip IC including a memory, and the memory capacity is fixed. However, there are issues that cannot be easily addressed.
[0012]
For this reason, when there is no tag having the optimum memory capacity for the required information amount, the customer selects a tag having a memory capacity larger than the required information amount, or a plurality of tags as shown in FIG. 15 or FIG. You must select a tag. Note that the price of the memory is the cheapest when it is used in large quantities, and the price of a memory different from this is generally significantly increased.
[0013]
In addition, the conventional contactless ID device is the same type of device in the case of expanding the system by increasing the information amount of the tag even if the optimum memory capacity is selected when the customer introduces the device. If there is no product lineup of compatible tags with large memory capacity, the device must be changed to another device, and if there is a specification change or design change to meet the customer's request, the device cost There is a risk of incurring up.
[0014]
Furthermore, some conventional contactless ID devices have a high rewrite frequency depending on information in the tag memory, and a tag using a memory (for example, EEPROM) having a rewrite life (number of times) has a high rewrite frequency. When a part of the memory area reaches the rewrite life, the tag must be exchanged. When a tag with a large memory capacity is used, there is a problem of economically generating waste.
[0015]
The present invention has been made to solve such a problem, and its object is to treat a plurality of tags as one tag when viewed from the reader / writer side, and to set the memory capacity of the plurality of tags. It is to provide a highly convenient non-contact ID device having flexibility and extensibility by increasing or decreasing within the total range.
[0016]
[Means for Solving the Problems]
To solve the above problems In A non-contact ID device according to the present invention comprises a plurality of tags, and a read / write device for writing and reading data without contact with the plurality of tags. In a non-contact ID device The plurality of tags include data storage means, and the plurality of tags are provided in the memory area of the data storage means. Large memory capacity A system area for setting data to be aggregated into one tag is provided.
[0017]
The tag of the contactless ID device according to the present invention is provided with a system area for setting data for aggregating a plurality of tags into one tag in the memory area of the data storage means. In combination, a plurality of tags can be handled as a single tag, the memory capacity can be expanded, the degree of freedom of the device can be increased, and the expandability and convenience can be improved.
[0018]
This Non-contact ID device according to the invention Tags Comprises a plurality of tags and a read / write device for writing and reading data without contact with the plurality of tags. In non-contact ID device The plurality of tags include data storage means, and a system area for setting an offset value and a memory capacity value specific to each tag is provided in a memory area of the data storage means.
[0019]
Furthermore, the read / write device according to the present invention can store a plurality of tags based on the tag-specific offset value and memory capacity value set in the memory area of the data storage means. Aggregated It is characterized by being handled as one tag with a large memory capacity.
[0020]
The contactless ID device according to the present invention includes a plurality of tags provided with a system area for setting an offset value and a memory capacity value specific to each tag in a memory area of the data storage means, Since the read / write device that handles a plurality of tags as one tag having a large memory capacity based on the memory capacity value is included, the designated address of the memory area that includes the offset value and the memory capacity value from the read / write device is included. By sending a command to each tag, a plurality of tags can be processed as a single tag having a memory capacity value that is the sum of the memory capacity values of each tag, increasing the degree of freedom of the device, expandability and convenience It is possible to improve the performance.
[0021]
This The non-contact ID device according to the invention comprises a plurality of tags, and a read / write device for writing and reading data without contact with the plurality of tags. In non-contact ID device The plurality of tags includes data storage means, and a unique number unique to each tag and a memory area of the data storage means One large-capacity memory that aggregates the plurality of tags A system area for setting an ID number table corresponding to a unique number of a tag is provided.
[0022]
Furthermore, the read / write device according to the present invention is set in the memory area of the data storage means. plural Tag-specific unique number and One large memory with multiple tags Multiple tags based on the ID number table corresponding to the tag's unique number , Aggregated multiple tags It is characterized by being handled as one tag with a large memory capacity.
[0023]
The contactless ID device according to the present invention includes a plurality of tags provided with a system area for setting an ID number table corresponding to a unique number of each tag and a unique number of all tags in the memory area of the data storage means. Read / handle a plurality of tags as one tag having a large memory capacity based on a unique number unique to the tag set in the memory area of the data storage means and an ID number table corresponding to the unique number of all tags. Since the writing device is provided, by sending the ID number table command corresponding to the unique number and the unique number of all tags from the read / write device to each tag, a plurality of tags are arranged by the unique number and ID number table. In addition, the total memory capacity of each tag can be processed as one tag, increasing the degree of freedom of the device and expandability. It is possible to enhance the convenience in rabbi.
[0024]
According to another aspect of the present invention, there is provided a non-contact ID device comprising: a plurality of tags; and a read / write device for writing and reading data without contact with the plurality of tags. In a non-contact ID device , Multiple tags Each Data storage means, In addition, a specific tag of the specific tag is stored in a memory area of the data storage unit in the specific tag, with one tag selected in advance as a specific tag among the plurality of tags, and the plurality of tags A system area for setting an ID number table corresponding to all tags other than the specific tag is provided, and a memory area of the data storage unit in all the tags other than the specific tag among the plurality of tags And all the tags other than the specific tag among the plurality of tags. A system area for setting a unique number is provided.
[0025]
Furthermore, the read / write device according to the present invention provides: Related to a specific tag A unique number of a specific tag set in the memory area of the data storage means and Other than specific tags An ID number table corresponding to the unique numbers of all tags; Other than specific tags A plurality of tags are handled as one tag having a large memory capacity based on the unique numbers of all tags.
[0026]
The contactless ID device according to the present invention includes a specific tag (master tag) provided with a system area for setting an ID number table corresponding to a unique number and a unique number of all tags in a memory area, and a specific tag A specific tag is specified with the unique number command, and all tags including the specific tag are arranged according to the ID number table corresponding to the unique number of all the tags included in the specific tag, and the memory capacity of all the tags Can be processed as a single tag, increasing the degree of freedom of the device, and improving the expandability and convenience.
[0027]
Further, the read / write device according to the present invention provides: plural An ID number table creating means for creating an ID number table based on the unique number of the tag is provided.
[0028]
Since the reading / writing device according to the present invention includes the ID number table creating means for creating the ID number table based on the unique number of the tag, the ID number can be set to the tag, and the required memory capacity By assigning ID numbers to a plurality of tags corresponding to, the plurality of tags can be processed as one tag.
[0029]
Also The read / write device according to the present invention is: plural An ID number table updating means for updating the ID number table based on the unique number of the tag is provided.
[0030]
Since the reading / writing device according to the present invention includes ID number table updating means for updating the ID number table based on the unique number of the tag, the ID number table is updated to add or delete tags. As a result, the number of tags can be arbitrarily increased or decreased to be processed as one tag, and the memory capacity can be freely changed.
[0031]
In the non-contact ID device according to the present invention, when a read / write device reads / writes data by moving an object on which a plurality of tags are mounted in the horizontal direction, the specific tag is read first. A plurality of tags are arranged so as to enter the communication area of the writing device.
[0032]
Furthermore, the non-contact ID device according to the present invention first reads a specific tag when data is read / written by the read / write device by moving an object on which a plurality of tags are mounted in the vertical direction. A plurality of tags are arranged so as to enter the communication area of the writing device.
[0033]
The non-contact ID device according to the present invention specifies when a read / write device reads / writes data of a plurality of tags even if an object having a plurality of tags is moved in a horizontal direction or a vertical direction. Since the first tag (master tag) enters the communication area of the read / write device, data read / write of a plurality of tags can be executed accurately and quickly.
[0034]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. In the present invention, a system area is provided in the tag memory, and a plurality of tags are treated as one tag when viewed from the reader / writer side based on data to be written in the system area. It is an object of the present invention to provide a highly convenient non-contact ID device having flexibility and extensibility by increasing / decreasing within the range of the total memory capacity of tags.
[0035]
FIG. 1 is a basic configuration diagram of an embodiment of a non-contact ID apparatus according to the present invention. In FIG. 1, a contactless ID device 1 includes a plurality of tags (T1 to T6) 3 and a read / write device (reader / writer) that reads and writes data without contact with a plurality of tags (T1 to T6) 3. 2). The communication between the plurality of tags (T1 to T6) 3 and the read / write device 2 realizes non-contact data transmission by using electromagnetic induction or radio waves on which data is superimposed.
[0036]
The read / write device 2 transmits a request command for reading or writing data to a plurality of tags (T1 to T6) 3, and data set in the system area provided in the memory of the tags (T1 to T6) 3, For example, the tags T1 to T6 are identified based on the tag offset value, the tag memory capacity value, the tag unique number, the tag ID number table, etc., the memory areas of the tags T1 to T6 are arranged, and the tags T1 to T6 By combining these memory areas, data processing is performed as one tag in which the memory capacities of the independent tags T1 to T6 are totaled.
[0037]
The tags (T1 to T6) 3 are provided with a memory such as an EEPROM having the same memory capacity, for example, and are arranged on the surface or inside of a plate-like label 4 made of, for example, a resin material. Affixed to the object 20 or a commuter pass or the like is formed by the label 4 itself, and used close to the communication area of the read / write device 2.
[0038]
The tags T1 to T6 have various data written and rewritten in their respective memories, and in the present invention, a plurality of tags T1 to T6 are added to the total memory capacity of the tags T1 to T6. Are handled as individual tags.
[0039]
FIG. 2 is an image diagram in which a plurality of tags are used as one tag. In FIG. 2, a plurality of tags T1 to T6 are aggregated into one tag T. This is because the six tags T1 to T6 do not physically become one tag T, but six tags T1 to T6. This means that data processing is performed by regarding the memory capacity M of the tags T1 to T6 as one tag T having a total memory capacity 6M.
[0040]
FIG. 3 is a block diagram of a main part of one embodiment of the tag according to the present invention. FIG. 2A is a block diagram, and FIG. 2B is a block diagram of a memory area of data storage means (memory). (A) In the figure, the tag (T1 to T6) 3 includes a space transmission means 5, a tag control means 6, and a data storage means 7. Note that a rectifying / smoothing circuit for a power supply (high-frequency signal) supplied by spatial transmission from the modulation / demodulation circuit or the read / write device 2 is omitted.
[0041]
The spatial transmission means 5 comprises a coil and a radio circuit, receives a request command and write data supplied from the read / write device 2 by electromagnetic induction or radio waves, and demodulates the data by a modulation / demodulation circuit (not shown). The demodulated data is supplied to the tag control means 6.
[0042]
The space transmission means 5 reads the data stored in the data storage means 7 under the control of the tag control means 6, modulates it by a modulation / demodulation circuit (not shown), and reads the modulated data by electromagnetic induction or radio waves. / Supplied to writing device 2
[0043]
The tag control means 6 is basically composed of a microprocessor, and performs control for reading data from the data storage means 7 and control for writing data to the data storage means 7 based on a request command supplied from the read / write device 2.
[0044]
The data storage means 7 is composed of a memory such as an EEPROM, and a system area 8A and a data area 8B are provided in the memory area 8. (B) As shown in the figure, in the system area 8A, tags T1 to T6 such as tag offset value, tag memory capacity value, tag unique number, tag ID number table, etc. are aggregated into one tag T. System data Di to be stored, and data (e.g., memory capacity M = 256 bytes) normally written to the tag is stored in the data area 8B. In order to consolidate a plurality of tags T1 to T6 into one tag T, the system data Di are combined, the arrangement is changed, or the data is updated.
[0045]
Thus, the tags T1 to T6 of the contactless ID device 1 according to the present invention set the data Di for aggregating the plurality of tags T1 to T6 into one tag T in the memory area of the data storage means 7. Since the system area 8A is provided, the data Di of the respective tags T1 to T6 can be combined to handle a plurality of tags as one tag, the memory capacity can be expanded, the degree of freedom of the device is increased, and the expandability is increased. In addition, the convenience can be improved.
[0046]
FIG. 4 is an operation flowchart of one embodiment of the tag according to the present invention. In this embodiment, the tag-specific offset value NO and memory capacity value NM are set in the system area 8A as system data Di in the memory area 8 of the data storage means 7.
[0047]
First, in step S1, a request command is received from the read / write device 2. Next, in step S2, the offset value NO is read from the system area 8A, in step S3, the memory capacity value NM is read from the system area 8A. In step S4, the offset value NO and the memory capacity value NM are added and summed. The value NA (= NO + NM) is calculated.
[0048]
In step S5, it is determined whether or not the designated address NS of the request command is within the range of the offset value NO and the total value NA (NO <NS <NA). If so, the process proceeds to step S6. On the other hand, if the designated address NS is outside the range of the offset value NO and the total value NA, the process is terminated without performing any processing.
[0049]
In step S6, command processing is executed, and in step S7, a response is sent to the read / write device 2.
[0050]
In addition, the operation | movement of step S1 and step S7 is performed by the spatial transmission means 5, and the operation | movement of step S2-step S6 is performed by the tag control means 6.
[0051]
FIG. 5 is an explanatory view of an embodiment of tag memory aggregation according to the present invention. A case where the tag T1 and the tag T2 are aggregated into the tag T will be described. The memory capacity of the tag T1 and the tag T2 is 256 bytes in hexadecimal. Further, the control for consolidating the tag T1 and the tag T2 into the tag T is performed by the read / write device 2 with the offset value N0 and the memory set in the memory area 8 (system area 8A) of the data storage means 7 of the tag T1 and tag T2. The process is executed based on the capacity value NM.
[0052]
In FIG. 5, the offset value NO of the system area 8A of the tag T1 is "0000", the memory capacity value NM is "0100", the offset value NO of the system area 8A of the tag T2 is "0100", and the memory capacity value NM is " 0100 ". The address of the data area 8B of the tag T1 and the tag T2 is 256 bytes from “0000 address” to “00FF address”, respectively.
[0053]
By applying the present invention to the tag T1 and the tag T2, the apparent offset value NO of the system area 8A of the tag T is "0000", the memory capacity value NM is "0200", and the address of the data area 8B is " “0000” to “01FF”
Thus, two tags T1 and T2 having a memory capacity of 256 bytes can be integrated into one tag T having a memory capacity of 512 bytes. Note that although FIG. 5 illustrates an example in which two tags are integrated into one tag, the present invention can be applied to a plurality of tags (how many).
[0054]
As described above, the non-contact ID device 1 according to the present invention includes a plurality of tags provided with the system area 8A for setting the offset value NO and the memory capacity value NM specific to each tag in the memory area 8 of the data storage means 7. Since T1 and T2 are provided, and the read / write device 2 that handles a plurality of tags T1 and T2 as one tag T having a large memory capacity based on the tag-specific offset value N0 and memory capacity value NM is provided. A command including a specified address in the memory area obtained by adding the offset value N0 and the memory capacity value NM is sent from the writing device 2 to each tag T1, T2, thereby adding a plurality of tags to the memory capacity value NM of each tag. It can be processed as one tag having a memory capacity value of 2NM, increasing the degree of freedom of the device, and improving the expandability and convenience.
[0055]
FIG. 6 is a block diagram showing the principal part of an embodiment of the read / write device according to the present invention. In FIG. 6, the read / write device 2 includes an external interface 9, a control unit 10, a space transmission unit 11, and a memory 12.
[0056]
The external interface 9 is an interface such as RS232C or GPIB that exchanges data between the read / write device 2 and an external connection device (not shown).
[0057]
The control unit 10 has various calculation functions and processing functions based on a microprocessor, and includes an ID number table creation unit 13 and an ID number table update unit 14. The control means 10 controls the operation and sequence of the entire read / write device 2.
[0058]
Moreover, the control means 10 is provided with the simultaneous access function to a plurality of tags. In order to handle one tag with a large memory capacity in the system area 8A of a plurality of tags, an ID number table set by arranging unique numbers in memory order in advance is read, and each tag is specified from information in the ID number table. The corresponding tag is selected and data reading / writing is executed.
[0059]
Further, the control means 10 has a specific tag selection access function. In order to handle a plurality of tags as one large-capacity tag in the system area of one tag (master tag), the master tag ID number table set by previously arranging the unique numbers in memory order is read, and the ID By identifying the ID number and address of each tag from the information in the number table, the corresponding tag is selected and data reading / writing is executed.
[0060]
Further, the control means 10 includes an ID number table creation means 13, creates an ID number table based on the unique number of the tag, supplies the created ID number table to the memory 12, stores it, or creates the created ID number. The table is supplied to the plurality of tags (T1 to T6) 3 shown in FIG. Since the ID number table creating means 13 is provided, a plurality of tags can be processed as one tag having a large memory capacity by giving ID numbers to a plurality of tags corresponding to the required memory capacity. .
[0061]
Further, the control means 10 includes an ID number table update means 14, updates the ID number table based on the unique number of the tag, supplies the updated ID number table to the memory 12, stores it, or updates the ID number table The table is supplied to the plurality of tags (T1 to T6) 3 shown in FIG. Since the ID number table update means 14 is provided, the tag can be arbitrarily increased or decreased to be processed as one tag by adding or deleting tags by updating the ID number table. The memory capacity can be changed freely.
[0062]
The space transmission means 11 is constituted by a coil or a radio circuit, and information such as a read / write command and an ID number table supplied from the control means 10 are electromagnetically induced or received by a plurality of tags (T1 to T6) shown in FIG. ) 3 is supplied.
[0063]
Further, the space transmission means 11 includes an offset value supplied by electromagnetic induction or radio waves from a plurality of tags (T1 to T6) 3 shown in FIG. 1, a tag memory capacity value, a tag unique number, a tag ID number table, and the like. Is received and provided to the control means 10.
[0064]
The memory means 12 is composed of a memory such as a ROM and a RAM, and a read / write command to the plurality of tags (T1 to T6) 3 shown in FIG. 1 and a memory capacity value from the plurality of tags (T1 to T6) 3 , Information such as a tag unique number and a tag ID number table is stored.
[0065]
FIG. 7 is an explanatory diagram of another embodiment of tag memory aggregation according to the present invention. In FIG. 7, ID numbers corresponding to the unique numbers of the tags and the unique numbers of all the tags are set in the system areas of all the tags T1 to T4.
[0066]
In FIG. 7, the system area of the tag T1 includes a unique number “0012” and unique numbers “0012”, “0018”, “1234”, “3333” of all (here, four) tags T1 to T4. Table numbers “0”, “1”, “2”, and “3” corresponding to are set. In the table number “4”, “FFFF” indicating the end of memory consolidation is set as a unique number.
[0067]
Similarly, unique numbers “0018”, “1234”, and “3333” are set in the system areas of the tags T2 to T4, respectively, and the ID numbers in the ID number table are the same as the unique numbers “0012” of the tags T1 to T4, respectively. ”,“ 0018 ”,“ 1234 ”,“ 3333 ”, table numbers“ 0 ”,“ 1 ”,“ 2 ”,“ 3 ”are set.
[0068]
By setting a unique number and an ID number table corresponding to the unique number in all the system areas of the tags T1 to T4, the read / write device 2 shown in FIG. 6 starts with an arbitrary tag from the tags T1 to T4. The ID number table of the tags T1 to T4 can be recognized by reading the unique number by the simultaneous access function to the plurality of tags described above and then executing a command for the tag having the unique number.
[0069]
Then, by specifying the tags T1 to T4 with commands in the order of ID numbers described in the ID number table and accessing the memory addresses of the respective data areas, the individual memory capacity of the tags T1 to T4 (for example, 256 bytes) Can be obtained as a memory capacity (256 × 4 = 1024 bytes). In the present embodiment, the case of the tags T1 to T4 has been described, but the number of tags may be five or more.
[0070]
Thus, the non-contact ID apparatus 1 according to the present invention is a system area in which the unique number unique to each tag and the unique ID number table for all tags are set in the memory area 8 of the data storage means 7. A plurality of tags T1 to T4 provided with 8A, and a plurality of tags based on a unique number of tags set in the memory area 8 of the data storage means 7 and an ID number table corresponding to the unique numbers of all tags Since the read / write device 2 that handles T1 to T4 as a single tag with a large memory capacity is provided, each tag receives commands from the read / write device 2 and ID number table commands corresponding to the unique numbers of all tags. Multiple tags are arranged according to a unique number and ID number table, and the memory capacity of each tag is summed up to be processed as one tag. The degree of freedom of the apparatus can be increased, and the expandability and convenience can be improved.
[0071]
FIG. 8 is an explanatory diagram of another embodiment of tag memory aggregation according to the present invention. In FIG. 8, a specific tag (master tag) TM is set in one of a plurality of tags TM and T2 to T4, and the master tag TM has a unique number and all tags TM and T2 to T4 are unique in the system area of the master tag TM. An ID number table corresponding to the number is set, and a unique number is set in the system area of all the remaining tags T2 to T4.
[0072]
In FIG. 8, the system area of the master tag TM includes a unique number “0000” and all (here, four) unique numbers “0000”, “0018”, “1234”, “1” of the tags TM, T2 to T4. Table numbers “0”, “1”, “2”, “3” corresponding to “3333” are set. In the table number “4”, “FFFF” indicating the end of memory consolidation is set as a unique number.
[0073]
On the other hand, only the unique numbers “0018”, “1234” and “3333” are set in the system areas of the tags T2 to T4, respectively.
[0074]
By setting an ID number table corresponding to the unique number in the system area of the master tag TM, and specifying the master tag TM with the command of the unique number from the read / write device 2 shown in FIG. 6, the master tag TM and the tag T2 The ID number table of ~ T4 can be recognized.
[0075]
Then, by specifying the master tag TM and tags T2 to T4 in the order of the ID numbers described in the ID number table with commands and accessing the memory addresses of the respective data areas, the individual memory capacities of the master tag TM and tags T2 to T4 A memory capacity (256 × 4 = 1024 bytes) obtained by consolidating (for example, 256 bytes) into one is obtained. In the present embodiment, the case of the master tag TM and the tags T2 to T4 has been described. However, the number of tags may be four or more.
[0076]
The ID number table method shown in FIG. 7 or 8 is not applicable unless the memory capacities of a plurality of tags aggregated as one tag are all the same, and therefore the ID number table when the memory capacities are different will be described. .
[0077]
FIG. 9 is a configuration diagram of another embodiment of an ID number table according to the present invention. In FIG. 9, the ID number table of three tags is composed of a table number, an ID number corresponding to these, and a memory capacity.
[0078]
Consists of ID numbers corresponding to table numbers “0”, “1”, “2” + ID number tables of memory capacity “001234” + “0100”, “001845” + “0400”, “123456” + “0100” To do. It consists of two tags with a memory capacity “100 = 256 bytes” and one tag with a memory capacity “400 = 1024 bytes”.
[0079]
By configuring the ID number table with ID number + memory capacity, the present invention described with reference to FIG. 7 or FIG. 8 can be applied even to a plurality of tags having different memory capacities.
[0080]
FIG. 10 is a configuration diagram of a modified embodiment of the ID number table shown in FIG. 10 differs from FIG. 9 in that it is configured with a start address + end address for accessing the memory instead of the memory capacity of the ID number table.
[0081]
By configuring the ID number table with ID number + start address + end address, the present invention described with reference to FIG. 7 or FIG. 8 can be applied even to a plurality of tags having different memory capacities.
[0082]
7 to 10 can be created by the ID number table creation means 13 provided in the control means 10 of the read / write device 2 shown in FIG.
[0083]
As described above, the contactless ID device 1 according to the present invention has a specific tag (master tag) in which the system area 8A for setting the ID number table corresponding to the unique number and the unique number of all tags is provided in the memory area 8. A specific tag is specified by a command of a specific number of a specific tag and includes a specific tag by an ID number table corresponding to the specific numbers of all the tags TM and T2 to T4 included in the specific tag. All tag tags TM, T2 to T4 can be arranged and the total memory capacity of all tags can be processed as one tag, increasing the degree of freedom of the device and improving the expandability and convenience. Can do.
[0084]
Further, since the reading / writing device 2 according to the present invention includes the ID number table creating means 13 for creating the ID number table based on the unique number of the tag, the ID number can be set to the tag. By assigning an ID number to a plurality of tags corresponding to the memory capacity to be processed, the plurality of tags can be processed as one tag.
[0085]
Next, the case where the memory capacity is increased by adding a new tag in the tag configuration shown in FIG. 8 will be described. FIG. 11 is an explanatory diagram of an embodiment of tag addition according to the present invention. In FIG. 11, when the tag T5 is added to the ID number table of FIG. 8, the table number “4” is updated to the unique number “9999”, and the table number “5” is updated to the unique number “FFFF”.
[0086]
By updating the table number “4” and the table number “5”, it is possible to add a new tag and increase the memory capacity of the tags aggregated into one by the memory capacity of the added tag.
[0087]
In addition, by updating the table number, the number of tags constituting the ID number table can be reduced, and the memory capacity of tags consolidated into one can be reduced.
[0088]
Further, FIG. 11 illustrates an example in which the ID number table of the system area of the master tag TM shown in FIG. 8 has been described. However, as shown in FIG. 7, the system areas of all tags T1 to T4 including the tag T5 to be added. The ID number table can be updated.
[0089]
Note that the ID number table in the system area can be updated by an ID number table updating unit 14 provided in the control unit 10 of the read / write device 2 shown in FIG.
[0090]
As described above, since the reading / writing device 2 according to the present invention includes the ID number table updating unit 14 that updates the ID number table based on the unique number of the tag, the tag is updated by updating the ID number table. By deleting or deleting, the number of tags can be arbitrarily increased or decreased to be processed as one tag, and the memory capacity can be freely changed.
[0091]
FIG. 12 is a layout view of one embodiment of a tag according to the present invention. In FIG. 12, the tag includes a master tag TM, and the tag moves in the horizontal direction with respect to the read / write device 2.
[0092]
(B) As shown in the figure, when the tag passes through the communication area of the read / write device 2 in the horizontal direction, all the tags are arranged so that the master tag TM first enters the communication area.
[0093]
When the master tag TM first communicates with the read / write device 2, the read / write device 2 can read the ID number table stored in the system area of the master tag TM and recognize all tags.
[0094]
FIG. 13 is a layout view of another embodiment of the tag according to the present invention. In FIG. 13, the tag includes a master tag TM, and the tag moves in the vertical direction with respect to the read / write device 2.
[0095]
(B) As shown in the figure, when the tag moves in the communication area of the read / write device 2 in the vertical direction, all the tags are arranged so that the master tag TM enters the communication area first.
[0096]
When the master tag TM first communicates with the read / write device 2, the read / write device 2 can read the ID number table stored in the system area of the master tag TM and recognize all tags.
[0097]
As described above, when the read / write device 2 reads / writes data of a plurality of tags, the non-contact ID device 1 according to the present invention moves an object on which a plurality of tags are mounted in a horizontal direction or a vertical direction. Even if it moves to, a specific tag (master tag) TM first enters the communication area of the read / write device 2, so that data of a plurality of tags can be read / written accurately and quickly.
[0098]
【The invention's effect】
As described above, the tag of the non-contact ID device according to the present invention is provided with a system area for setting data for aggregating a plurality of tags into one tag in the memory area of the data storage means. By combining the data of each tag, a plurality of tags can be handled as one tag, the memory capacity can be expanded, the degree of freedom of the device can be increased, and the expandability and convenience can be improved.
[0099]
The contactless ID device according to the present invention includes a plurality of tags provided with a system area for setting an offset value and a memory capacity value specific to each tag in a memory area of the data storage means, and includes a tag-specific offset. Since there is a read / write device that handles multiple tags as one tag with a large memory capacity based on the value and the memory capacity value, a command that adds the offset value and the memory capacity value from the read / write device to each tag By transmitting, a plurality of tags can be processed as one tag having a memory capacity value that is the sum of the memory capacity values of each tag, thereby increasing the degree of freedom of the device and improving the expandability and convenience. be able to.
[0100]
Furthermore, the contactless ID device according to the present invention includes a plurality of system areas in which a unique number unique to each tag and an ID number table corresponding to the unique number of all tags are provided in the memory area of the data storage means. A plurality of tags are handled as one tag having a large memory capacity based on a unique number unique to the tag set in the memory area of the data storage means and an ID number table corresponding to the unique number of all tags. Since the read / write device is provided, a plurality of tags can be assigned to the unique number and ID number table by transmitting the ID number table command corresponding to the unique number and the unique number of all tags from the read / write device to each tag. The total memory capacity of each tag can be processed as one tag, increasing the degree of freedom of the device It is possible to achieve the scalability and improve convenience.
[0101]
In addition, the contactless ID device according to the present invention includes a specific tag (master tag) provided with a system area for setting an ID number table corresponding to a unique number and a unique number of all tags in the memory area. A specific tag is specified by the command of the unique number of the tag, and all tags including the specific tag are arranged by the ID number table corresponding to the unique number of all the tags included in the specific tag, The total memory capacity can be processed as one tag, so that the degree of freedom of the device can be increased and the expandability and convenience can be improved.
[0102]
Furthermore, since the reading / writing device according to the present invention includes the ID number table creating means for creating the ID number table based on the unique number of the tag, the ID number can be set to the tag and is required. By assigning ID numbers to a plurality of tags corresponding to the memory capacity, the plurality of tags can be processed as one tag.
[0103]
In addition, since the reading / writing device according to the present invention includes ID number table updating means for updating the ID number table based on the unique number of the tag, the ID number table is updated to add or delete tags. As a result, the number of tags can be arbitrarily increased or decreased to be processed as one tag, and the memory capacity can be freely changed.
[Brief description of the drawings]
FIG. 1 is a basic configuration diagram of an embodiment of a contactless ID device according to the present invention.
FIG. 2 is an image diagram of a plurality of tags as one tag.
FIG. 3 is a block diagram of a main part of an embodiment of a tag according to the present invention.
FIG. 4 is an operation flowchart of one embodiment of a tag according to the present invention.
FIG. 5 is an explanatory diagram of an embodiment of tag memory aggregation according to the present invention;
FIG. 6 is a block diagram of a main part of an embodiment of a read / write device according to the present invention.
FIG. 7 is an explanatory diagram of another embodiment of tag memory aggregation according to the present invention;
FIG. 8 is an explanatory diagram of another embodiment of tag memory aggregation according to the present invention;
FIG. 9 is a configuration diagram of another embodiment of an ID number table according to the present invention.
10 is a configuration diagram of a modified embodiment of the ID number table shown in FIG. 9;
FIG. 11 is an explanatory diagram of an embodiment of tag addition according to the present invention.
FIG. 12 is a layout view of an embodiment of a tag according to the present invention.
FIG. 13 is a layout view of another embodiment of a tag according to the present invention.
FIG. 14 is a block diagram of a conventional tag (storage medium)
FIG. 15 is a configuration diagram of a conventional non-contact ID device.
FIG. 16 is another configuration diagram of a conventional contactless ID device.
[Explanation of symbols]
1 Non-contact ID device
2 Read / write device
3 tags
4 labels
5,11 Spatial transmission means
6 Tag control means
7 Data storage means
8 Memory area
8A System area
8B data area
9 External interface
10 Control means
12 memory
13 ID number table creation means
14 ID number table update means

Claims (11)

In a non-contact ID device comprising a plurality of tags and a read / write device for writing and reading data without contact with the plurality of tags,
The plurality of tags includes data storage means, and a system area for setting data for aggregating the plurality of tags into one tag having a large memory capacity is provided in a memory area of the data storage means. A contactless ID device. In a non-contact ID device comprising a plurality of tags and a read / write device for writing and reading data without contact with the plurality of tags,
The plurality of tags includes data storage means, and a system area for setting an offset value and a memory capacity value specific to each tag is provided in a memory area of the data storage means. The read / write device, characterized in that handled as one tag big set in the memory area tag-specific offset value and a memory capacity that aggregates the plurality of tags based on the memory capacity value of the data storage means The non-contact ID device according to claim 2. In a non-contact ID device comprising a plurality of tags and a read / write device for writing and reading data without contact with the plurality of tags,
The plurality of tags include data storage means, and the memory area of the data storage means corresponds to a unique number unique to each tag and a unique number of one tag having a large memory capacity in which the plurality of tags are aggregated . A non-contact ID apparatus comprising a system area for setting an ID number table. The read / write device includes a unique number unique to the plurality of tags set in a memory area of the data storage unit and an ID number corresponding to a unique number of one tag having a large memory capacity in which the plurality of tags are aggregated . 5. The contactless ID device according to claim 4 , wherein the plurality of tags are treated as one tag having a large memory capacity obtained by collecting the plurality of tags based on a table. In a non-contact ID device comprising a plurality of tags and a read / write device for writing and reading data without contact with the plurality of tags,
Each of the plurality of tags includes data storage means, and one tag selected in advance among the plurality of tags is set as a specific tag in the memory area of the data storage means in the specific tag. A system area is provided for storing a unique number of the tag and setting an ID number table corresponding to all tags other than the specific tag among the plurality of tags, and further, other than the specific tag among the plurality of tags A non-contact ID characterized in that a system area for setting unique numbers related to all tags other than the specific tag among the plurality of tags is provided in the memory area of the data storage means in all the tags apparatus. The read / write device, said data storage means is set in the memory region a the specific tag unique ID and the ID number table corresponding to the unique number of all tags other than the specific tag according to the particular tag The contactless ID device according to claim 6, wherein the plurality of tags are handled as one tag having a large memory capacity based on unique numbers of all tags other than the specific tag . The read / write apparatus, according to any one of claims 5 to claim 7, characterized in that with the ID number table creating means for creating the ID number table based on the unique number of the plurality of tags Non-contact ID device. The read / write apparatus, according to any one of claims 5 to claim 7, characterized in that with the ID number table updating means for updating the ID number table based on the unique number of the plurality of tags Non-contact ID device. When data is read / written by the reading / writing device by moving an object on which the plurality of tags are mounted in the horizontal direction, the specific tag first enters the communication area of the reading / writing device. wherein the plurality of the claims 6 or, characterized in that a tag contactless ID system according to claim 7, wherein as. When data is read / written by the read / write device by moving an object on which the plurality of tags are mounted in the vertical direction, the specific tag first enters the communication area of the read / write device. wherein the plurality of the claims 6 or, characterized in that a tag contactless ID system according to claim 7, wherein as.

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