JP2011175647A - Reader/writer system and reader system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reader/writer and a reader having a means for determining whether information recoded on an RF tag has been correctly and completely read or not, to determine whether all the information recorded on RF tags which have been read collectively are read normally or not. <P>SOLUTION: The reader/writer system includes a reader/writer (R/W) 100 for reading/writing information recorded on RF tags 200 attached to each of a plurality of envelopes (article) 35, and a PC (control means) 50 for controlling the reader/writer 100. The PC 50 includes an association information recording means 50a for recording, on each RF tag 200, association information associating the RF tags 200 attached to each of the plurality of envelopes 35; and a link determination means 50b for determining whether the association information read collectively by the reader/writer 100 are linked mutually. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a reader / writer and a reader that collectively read / write recorded information recorded on RF tags attached to a plurality of articles, and more particularly, to read information recorded on RF tags attached to a plurality of articles. The present invention relates to a reader / writer and a reader that can determine whether or not there is a drop.

In recent years, information recording media called IC cards are widely available on the market. The IC card is a generic name for cards having a card-like or sheet-like shape such as a credit card, a bank card, a point card, etc., and an IC (Integrated Circuit) incorporated in the card. Recently, RF tags that record information based on the same principle as IC cards have been attached to various products, contributing to efficiency in various fields such as product type and content discrimination, sorting and inventory management. . In the case of IC cards and RF tags attached to a plurality of articles that are handled in a batch, data is exchanged with reader / writers by radio waves in a lump. In particular, the IC card processed in units of one sheet has a particular problem that does not occur particularly.
For example, when sorting a plurality of envelopes attached with RF tags based on the record information of the RF tags, the record information of each RF tag attached to a large number of envelopes is collectively read in order to improve work efficiency. ing. At this time, it is more efficient to perform the reading without counting the number of envelopes to be read in advance, but when this working method is adopted, all the information recorded in the RF tag read by the reader / writer is correct. Whether it was read or not was unclear. That is, it has been difficult to distinguish whether or not there is a reading error or the like in the recording information read in a batch. For this reason, it is necessary to perform the reading after counting the quantity in advance, but this is a factor of reducing workability.
Note that Patent Document 1 has been filed by the same applicant for an article management system for managing articles in a packaging container. Further, Patent Document 2 has been filed by the same applicant for an apparatus that estimates the approximate number of sheets handled at one time when performing read / write processing on a plurality of IC cards at once.
As another conventional technique, Patent Document 3 discloses that after applying a pressing force from both ends of an article, a difference in resistance value is obtained based on the total resistance value of two types of electrode patterns having different resistance values. A technique for calculating the number of articles by dividing by the resistance value is disclosed. Patent Document 4 discloses a technique for determining the number of cards present in an envelope by calculating an output waveform that is a temporal change in an output voltage value due to a reflected wave or transmitted wave of electromagnetic waves.

JP 2002-145419 A JP 2001-319190 A JP 2002-197438 A Japanese Patent Laid-Open No. 06-241763

However, in the case of the conventional batch reading and writing, there is a problem that it is difficult to accurately manage articles because it is difficult to distinguish whether or not there is a read-out in the recorded information. .
In addition, the invention of Patent Document 1 attaches a collective information tag that records all individual information of articles to be packed in a packaging container to the packaging container, and compares the collective information tag information with the individual information without opening the container. The container contents are managed. However, the invention of Patent Document 1 requires an individual information tag and a batch information tag, which not only increases the number of tags, but also has a problem that the work for writing information to these tags is troublesome.
Further, since the invention of Patent Document 2 detects the load of the power amplifier and estimates the number of IC cards from the load, the number of sheets is only an estimated value and an accurate number cannot be detected.
Moreover, since it is necessary to apply pressure to an article, the invention of Patent Document 3 cannot be used when the strength of the article is weak.
In addition, since the invention of Patent Document 4 determines the number of sheets by calculating an output waveform that is a temporal change in the output voltage value due to the reflected wave or transmitted wave of electromagnetic waves, an error occurs in the number of sheets as in Patent Document 2.
In view of such a problem, the present invention provides a reader / writer that reads and writes recorded information recorded on an RF tag in a batch, and whether or not the recorded information recorded on the RF tag is read correctly without being read out. It is an object of the present invention to provide a reader / writer and a reader that can determine whether or not all of the recorded information recorded on the RF tags read in a batch has been normally read.

In order to solve this problem, the present invention provides a reader / writer that collectively reads and writes recorded information recorded on RF tags attached to a plurality of articles, and a control unit that controls the entire system. In the reader / writer system, the control means collectively records information relating the RF tags attached to the plurality of articles to the RF tags, and the reader / writer collectively. Link determination means for determining whether or not the read association information is linked to each other. When the link determination means determines that the association information is linked, the reader / writer collectively It is characterized in that it is determined that the recorded information read in this way is not read out.
In addition to the ID information included in each RF tag, the present invention relates to association information recording means for associating and recording association information, and when the association information is collectively read, Link determining means for determining whether or not the link information is linked, and when the link determination means determines that the association information is linked, the recorded information read in a batch by the reader / writer is read out. It is judged that there is not. That is, if even one piece of association information cannot be read, the link is not established, and therefore whether or not the reading is missed is determined based on the availability of the link.
According to a second aspect of the present invention, the association information is recorded in units of articles to be read in a batch, and does not overlap with any other RF tag association information.
The association information of the present invention is recorded on individual RF tags in units of articles that are read together. For example, when the number of articles to be collectively read is 10, the association is performed among the 10 articles, and the information is recorded so as not to overlap with the association information of any other RF tag.

According to a third aspect of the present invention, the link determination unit reads the ID information of each RF tag attached to the plurality of articles and the association information recorded by the association information recording unit by the reader / writer and stores them in a memory. When the association information stored in the memory and the ID information of each RF tag are all provided, it is determined that the association information is linked.
In the reader / writer memory, ID information and association information of the RF tags read in a batch are stored in association with each other. When the record information of all the RF tags is read, it is determined by the link determination means whether the association information stored in the memory and the ID information of each RF tag are all available. If there is no overwriting, all of the association information and the ID information of each RF tag are provided.
According to a fourth aspect of the present invention, there is provided a reader / writer system comprising: a reader / writer that collectively reads and writes recorded information recorded on RF tags attached to a plurality of articles; and a control unit that controls the entire system. The means is a sequence number recording means for recording a sequence number on each RF tag attached to the plurality of articles, and whether there is a missing number in the sequence number recorded on each RF tag attached to the plurality of articles. Missing number judging means for judging whether or not there is no missing number in the sequence number by the missing number judging means, it is judged that the recorded information read in a batch by the reader / writer is not read out. It is characterized by that.
In the present invention, preparation for collective reading is performed while recording a sequence number in advance on each RF tag of an article to be read collectively. When all the sequence numbers are recorded, the plurality of articles are collectively read as a unit. Of course, if the RF tags of all articles can be read normally, the sequence numbers should match the numbers recorded without any missing numbers.

According to a fifth aspect of the present invention, there is provided a reader / writer system comprising: a reader / writer that collectively reads and writes recorded information recorded on RF tags attached to a plurality of articles; and a control unit that controls the entire system. The means includes a weighing means for weighing the article, a weight recording means for recording weight information of each article weighed by the weighing means on an RF tag attached to the individual article, and the weight information is recorded. When the recorded information of a plurality of articles attached with the RF tag is collectively read, the total weight of the plurality of articles is measured and compared with the total value of the individual weight information recorded on the RF tag Comparison means, and when the total weight of the plurality of articles and the total value of the individual weight information recorded in the RF tag match by the weight comparison means match, The recording information read collectively by the serial writer, characterized in that it is determined that there is no failure in reading.
The present invention measures the weight of a plurality of articles to be read at once and prepares for batch reading while recording the measured values on each RF tag. When all the measurement values are recorded, the plurality of articles are collectively read as one unit, and the weights of all the articles are measured at the same time. The total of the measurement values recorded on each RF tag and the weight of all the articles are obtained. If they match, it is determined that the recorded information is not read out.
A reader / writer system comprising: a reader / writer that collectively reads and writes recorded information recorded on RF tags respectively attached to a plurality of articles; and a control unit that controls the entire system. The means is a number recording means for recording the total number information of the plurality of articles on at least one representative RF tag, and the total number when the plurality of articles are collectively read and recorded on the representative RF tag. And a total number information recorded in the representative RF tag and a total number when the plurality of articles are collectively read by the number comparison means. When the comparison results match, it is determined that the recorded information read in a batch by the reader / writer is not read out.
In the present invention, the number of articles to be read at a time is known in advance, and that number is recorded in one representative RF tag. Then, if the number of articles read by starting collective reading of articles matches the number recorded on the representative RF tag, it is determined that the recorded information is not read out.

A reader / writer comprising: a reader / writer that collectively reads / writes recorded information recorded on RF tags attached to a plurality of articles whose number is fixed; and a control unit that controls the entire system. In the writer system, the control means includes number comparison means for comparing the total number information obtained by collectively reading the RF tags attached to the plurality of articles for which the number is determined, and the determined number counted in advance. And when the total number of the RF tags attached to the articles whose number has been determined by the number comparison means is collectively read and the determined number matches, the reader / writer collectively Thus, it is determined that the recorded information read is not read out.
In the present invention, the number of articles is determined in advance, and batch reading is performed in units of the number. When the number of articles read after the batch reading of the articles matches the determined number, it is determined that the recorded information is not read out.
Claim 8 is a reader system comprising: a reader that collectively reads recorded information recorded on RF tags attached to a plurality of articles; and a control unit that controls the entire system. A link for determining whether or not the association information is linked to each other when the RF tags in which association information for associating the RF tags attached to each of a plurality of articles is recorded in advance by the reader. A determination unit, and when the link determination unit determines that the association information recorded in all the RF tags is linked, it is determined that the recorded information collectively read by the reader is not read out. It is characterized by doing.
The present invention has the same effect as that of the first aspect.

According to a ninth aspect of the present invention, the association information is recorded in units of articles to be read in a lump and does not overlap with any other RF tag association information.
The present invention has the same effect as that of the second aspect.
According to a tenth aspect of the present invention, the link determination unit reads the ID information and the association information of each RF tag attached to the plurality of articles collectively by the reader and stores it in a memory, and the association stored in the memory When the information and the ID information of each RF tag are all available, it is determined that the association information is linked.
The present invention has the same effect as that of the third aspect.
An eleventh aspect of the present invention is a reader system comprising: a reader that collectively reads record information recorded on RF tags attached to a plurality of articles; and a control unit that controls the entire system. It is provided with a missing number judging means for judging whether or not there is a missing number in the sequence number recorded in each RF tag attached to a plurality of articles, and it is judged by the missing number judging means that there is no missing number in the sequence number. In this case, it is determined that the recorded information read by the reader at a time is not read out.
The present invention has the same effect as that of the fourth aspect.

A twelfth aspect of the present invention relates to a reader system comprising: a reader that collectively reads record information recorded on RF tags attached to a plurality of articles; and a control unit that controls the entire system. A plurality of articles when collectively reading record information of a plurality of articles to which weighing means for weighing the articles and an RF tag on which weight information of each article weighed by the weighing means is recorded Weight comparison means for measuring the total weight of each item and comparing it with the total value of the individual weight information recorded on the RF tag, and recording the total weight of the plurality of articles and the RF tag by the weight comparison means. When the result of comparison with the total value of the individual pieces of weight information coincided with each other, it is determined that the recorded information read by the reader at a time is not read out.
The present invention has the same effect as that of the fifth aspect.
A thirteenth aspect of the present invention is a reader system comprising: a reader that collectively reads record information recorded on RF tags attached to a plurality of articles; and a control unit that controls the entire system. A representative RF tag that records the total number information of a plurality of articles, and a number comparison unit that compares the total number when the plurality of articles are collectively read with the total number information recorded on the representative RF tag; And when the result of comparing the total number when the plurality of articles are collectively read by the number comparison means and the total number information recorded in the representative RF tag matches, the reader collectively Thus, it is determined that the recorded information read is not read out.
The present invention has the same effect as that of the sixth aspect.
Claim 14 is a reader system comprising: a reader that collectively reads record information recorded on RF tags attached to articles whose number is fixed; and a control unit that controls the entire system. The control means includes number comparison means for comparing the total number information obtained by collectively reading the RF tags attached to the plurality of articles whose number has been determined and the determined number counted in advance, and the number comparison When the total number of the RF tags attached to the articles whose number is determined by the means is collectively read and the result of comparison of the determined number matches, the recording information read collectively by the reader It is characterized in that it is judged that there is no reading over.
The present invention has the same effect as that of the seventh aspect.

According to the first and eighth aspects of the present invention, association information is associated and recorded in the RF tag, and when the association information is collectively read, it is determined whether or not each association information is linked. Thus, since it is determined that the record information read in a batch is not read out, it is possible to determine whether the information is always linked even if the reading order is out of order.
Further, in claims 2 and 9, the association information is recorded in units of articles to be read at a time, and does not overlap with any other RF tag association information, and any of the ID information included in each RF tag. Therefore, it is always possible to link in units of articles that are read collectively.
Further, in the third and tenth aspects, when all the association information stored in the memory and the ID information of each RF tag are prepared, it is determined that the association information is linked, so that the link determination becomes easy.
Further, according to claims 4 and 11, since the sequence number is recorded in advance on each RF tag of the articles to be read in a batch, and when all the sequence numbers are recorded, the batch reading is performed in that unit. Thus, it is possible to reliably detect the presence or absence of reading-out.

Further, in claims 5 and 12, the weight of articles to be read in batch is measured, the measured value is recorded in each RF tag, and when all the measured values are recorded, the batch reading is performed in the unit and all articles are simultaneously read. If the total weight recorded on each RF tag matches the weight of all articles, it is determined that the recorded information has not been read out. The total weight of the article to be read can also be confirmed.
Further, in claims 6 and 13, the number of articles that are collectively read and recorded in advance is recorded in one representative RF tag, and the number of articles that are read by starting collective reading of the articles and the representative RF tag is recorded. If the numbers match, it is determined that the recorded information has not been read out. Therefore, when the number of articles to be read at a time is changed, it is possible to cope with it by simply rewriting the information of the representative RF tag.
Further, in claims 7 and 14, batch reading is performed in units of a fixed number that has been determined in advance, and if the number of articles read matches the fixed number, it is determined that there is no overwriting in the recorded information. When reading a certain article at a time, it is only necessary to manage the number of read articles.

The block diagram which shows the structure of the reader / writer for general RF tags. The block diagram which shows the structure of a general RF tag. (A) and (B) are external perspective views of a general RF tag. (A) is a block diagram of the reader / writer system according to the first embodiment of the present invention, and (b) is a diagram in which recorded information of the RF tag 200 attached to a plurality of envelopes 35 is collectively read by the reader / writer 100. . (A) is a figure explaining the relationship between the tag ID information 31 recorded on the RF tag 200 attached to the envelope and the association information 30, and (b) is the tag ID information and the association information when read in the reading order of the figure. The figure explaining the relationship of (2), The figure explaining the memory content memorize | stored in the memory of PC50. (A) is a figure explaining the relationship between the tag ID information 31 recorded on the RF tag 200 attached to the envelope and the association information 30, and (b) is the tag ID information and the association information when read in the reading order of the figure. The figure explaining the relationship of (2), The figure explaining the memory content memorize | stored in the memory of PC50. The flowchart explaining operation | movement of the 1st Embodiment of this invention. (A) is a block diagram of a reader / writer system according to the second embodiment of the present invention, and (b) is a diagram in which the reader / writer 100 collectively reads recorded information of the RF tag 200 attached to a plurality of envelopes 35. (C) is a figure explaining the memory | storage content memorize | stored in the memory of PC50. The flowchart explaining operation | movement of the 2nd Embodiment of this invention. (A) is a block diagram of a reader / writer system according to the third embodiment of the present invention. (B) is a block diagram of reading information recorded on the RF tag 200 attached to a plurality of envelopes 35 by the reader / writer 100 and measuring it. The figure which measures the total weight of the some envelope 35 by the means 110, (c) is a figure explaining the memory content memorize | stored in the memory of PC50. The flowchart explaining operation | movement of the 3rd Embodiment of this invention. (A) is a block diagram of a reader / writer system according to the fourth embodiment of the present invention, and (b) is a block diagram of recording information of the RF tag 200 and the representative RF tag 210 attached to a plurality of envelopes 35 by the reader / writer 100. FIG. 8C is a diagram for explaining the operation of comparing the total number counted by the PC 50 with the number of representative RF tags 210. The flowchart explaining operation | movement of the 4th Embodiment of this invention. (A) The block diagram of the reader / writer system which concerns on the 5th Embodiment of this invention, (b) The figure which reads collectively the recording information of RF tag 200 attached to the several envelope 35 with the reader / writer 100, ( (c) is a diagram for explaining the operation of comparing the total number counted by the PC 50 with the determined number. The flowchart explaining operation | movement of the 5th Embodiment of this invention.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the components, types, combinations, shapes, relative arrangements, and the like described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention only unless otherwise specified. .
FIG. 1 is a block diagram showing a configuration of a general RF tag reader / writer. This RF tag reader / writer (hereinafter simply referred to as a reader / writer) 100 is controlled by a PC 50 that exchanges data with the reader / writer 100 and controls the entire system. The reader / writer 100 includes a transmission / reception device 1 that controls a data communication protocol with an external PC 50, a control device 2 that controls the operation of the entire reader / writer 100, firmware that records a procedure for operating the control device 2, and read data A memory device 3 for storing data, a modulator 4 for modulating data from the control device 2 on a carrier wave, an input device 5 for inputting an operation command, and a display device 6 for displaying information controlled by the control device 2 A power amplifier 7 that amplifies the power supply signal that is an AC signal from the control device 2 and a write command from the modulator 4, and a detector demodulator that converts the carrier wave received from the loop antenna 9 into binary data 8 and a loop antenna 9 for exchanging power and data with an RF tag (not shown).
Next, before describing the operation of the reader / writer 100 according to this configuration, the configuration of the RF tag will be described first. FIG. 2 is a block diagram showing a configuration of a general RF tag. The RF tag 200 of the present embodiment receives a loop antenna 20 that transmits and receives data using a power carrier wave from the reader / writer 100, a transmission / reception circuit 21 that generates a write command read command, and a power carrier wave from the loop antenna 20. A power generation circuit 22 that rectifies and converts it into DC power, a memory device 23 that manages storage of control firmware and data, a modulator 24 that modulates a transmission command from the control circuit 26 with a carrier wave, The detector 25 is configured to convert the carrier wave data from the transmission / reception circuit 21 into binarized data, and the control circuit 26 controls the overall operation of the RF tag 200.

Next, each operation will be described with reference to FIGS. 1 and 2 together. When a power supply (not shown) is turned on, the reader / writer 100 starts an operation according to a program stored in the memory device 3 after the initial operation of the control device 2. First, initialization is performed. Next, the control device 2 alternately transmits a power supply signal supplied to the RF tag 200 and a polling signal from the power amplifier 7. The signal is radiated to the outside from the loop antenna 9 as an electromagnetic wave. Next, when the RF tag 200 comes close to the reader / writer 100, the loop antenna 20 rectifies the carrier wave by the power generation circuit 22 to convert it into DC power and supplies it to all the circuits in the RF tag. When power is supplied and the control circuit 26 is driven, control is started in accordance with a program stored in the memory device 23.
Next, the control circuit 26 first demodulates the command from the transmission / reception circuit 21 by the detector 25, converts it to a binary signal, and analyzes the command. As a result, when it is recognized that it is called, the response is modulated by the modulator 24 and transmitted from the loop antenna 20 via the transmission / reception circuit 21. The reader / writer 100 receives this response with the loop antenna 9, converts it into a binarized code with the detector demodulator 8, analyzes it with the control circuit 2, and recognizes that the RF tag 200 is a tag conforming to the standard. Thereby, data is exchanged between the reader / writer 100 and the RF tag 200 thereafter.
This RF tag 200 includes an inlet 31 in which a loop antenna 20 and a control IC are integrated on a PVC sheet or the like, a loop antenna 20 formed along the periphery of the inlet 31, and a predetermined modulation method via the loop antenna 20. And a control IC 201 that controls transmission / reception of carrier power based on the above and data exchange between the reader / writer 100.

FIG. 3 is an external perspective view of the RF tag of the present invention. Hereinafter, the entire configuration is referred to as an RF tag. FIG. 3A is a top view, and FIG. 3B is a side view. As is clear from the top view of FIG. 3A, the RF tag 200 includes an inlet 31 in which the loop antenna 20 and the control IC 201 are integrated on a PVC sheet or the like, and a loop formed along the periphery of the inlet 31. The antenna 20 includes a control IC 201 that controls transmission of carrier power based on a predetermined modulation method and data exchange between the reader / writer 100 via the loop antenna 20.
Note that the reader / writer 100 of FIG. 1 described in the following embodiment may have a function as the reader 100 that only reads information recorded in the RF tag 200.

FIG. 4A is a configuration diagram of the reader / writer system according to the first embodiment of the present invention. In this embodiment, a reader / writer (R / W) 100 that collectively reads and writes recorded information recorded on RF tags 200 attached to a plurality of envelopes (articles) 35 and a PC that controls the reader / writer 100. (Control means) 50. The PC 50 collects the association information 30 (see FIG. 5) for associating each RF tag 200 attached to each of the plurality of envelopes 35 into each RF tag 200 and the reader / writer 100 collectively. Link determining means 50b for determining whether or not the association information 30 read in this way is linked to each other. FIG. 4B is a diagram in which the recording information of the RF tag 200 attached to the plurality of envelopes 35 is collectively read by the reader / writer 100.
As described above, the PC 50 of the present embodiment reads the association information recording means 50a for associating and recording association information in addition to the ID information included in each RF tag, and the association information in a batch. Link determining means 50b for determining whether or not each piece of association information is linked. When the link determination means 50b determines that the association information is linked, the reader / writer 100 collectively It is determined that the read record information is not read out. That is, if even one piece of association information cannot be read, the link is not established, and therefore whether or not the reading is missed is determined based on the availability of the link.

FIG. 5 is a diagram for explaining the first embodiment of FIG. FIG. 5A is a diagram for explaining the relationship between the tag ID information 31 and the association information 30 recorded on the RF tag 200 attached to the envelope. FIG. 5B is a diagram for explaining the relationship between the tag ID and the association information when read in the reading order shown in the figure. FIG. 5C is a diagram for explaining the stored contents stored in the memory of the PC 50.
The operation will be described with reference to FIG. When the RF tag 200 attached to each envelope 35 reads, for example, six envelopes having tag ID information A, B, C, D, E, and F as shown in FIG. In the ID information “A”, tag ID information “B” is recorded as association information, and in the same manner, adjacent tag ID information is recorded as association information, and the tag ID information “F” is linked to link the whole. Assume that the first tag ID information “A” is recorded as association information. This recording operation is performed in advance by the reader / writer 100 in accordance with an instruction from the association information recording unit 50a of the PC 50. The association is not limited to adjacent RF tags, and the order is not limited as long as it is within the RF tags that are read collectively.

First, the case where no reading is missed will be described with reference to FIG. As shown in FIG. 4B, the plurality of envelopes 35 for which the association information has been recorded are stored in the container 36, and the RF tag association information 30 and the tag ID information 31 are collectively read by the reader / writer 100. The information is temporarily stored in the memory of the PC 50. In this example, it is assumed that the tag ID information “A”, “E”, “F”, “C”, “B”, and “D” are read in this order. As a result, the tag ID information 31 and the association information 30 are stored in association with each other in the memory of the PC 50 as shown in FIG. From this result, the link determination means 50b of the PC 50 determines that all of the read tag ID information 31 and their associated information 30 are available, and the PC 50 reads each RF tag 200 collectively read by the reader / writer 100 from this result. It is determined that the recorded information is not read out. That is, as is apparent from FIG. 5B, the association information “B” is read from the tag ID information “A” in the reading order, the association information “F” is read from the tag ID information “E”, and the tag ID The association information “A” is read from the information “F”, the association information “D” is read from the tag ID information “C”, the association information “C” is read from the tag ID information “B”, and the tag ID information “ When the association information “E” is read from “D” and the association information is traced in alphabetical order, arrows (1) to (6) are obtained, and it is finally understood that the arrows are linked.
In the memory of the PC 50, the ID information and association information of the RF tags read in a batch are stored in association with each other. When the record information of all the RF tags is read, it is determined by the link determination means 50b whether the association information stored in the memory and the ID information of each RF tag are all available. If there is no overwriting, all of the association information and the ID information of each RF tag are provided.

  Next, a case where there is a reading error will be described with reference to FIG. As shown in FIG. 4B, the plurality of envelopes 35 for which the association information has been recorded are stored in the container 36, and the RF tag association information 30 and the tag ID information 31 are collectively read by the reader / writer 100. The information is temporarily stored in the memory of the PC 50. In this example, it is assumed that the tag ID information “A”, “E”, “F”, “C”, “B”, and “D” are read in this order. As a result, for example, if the tag ID information “E” read second is read out, the tag ID information 31 and the association information 30 are stored in association with each other in the memory of the PC 50 as shown in FIG. However, the tag ID information “E” and the association information “F” are not stored. From this result, the link determination means 50b of the PC 50 determines that the read tag ID information 31 and their associated information 30 are not all prepared, and the PC 50 reads each RF tag 200 collectively read by the reader / writer 100 from this result. The recorded information is judged to have been read over. That is, as apparent from FIG. 6B, the association information “B” is read from the tag ID information “A” in the reading order, the association information “F” is not read from the tag ID information “E”, and the tag ID The association information “A” is read from the information “F”, the association information “D” is read from the tag ID information “C”, the association information “C” is read from the tag ID information “B”, and the tag ID information “ When the association information “E” is read from “D” and the association information is traced in alphabetical order, arrows (1) to (4) are obtained, and it can be seen that the link is finally broken at the dotted arrows.

  FIG. 7 is a flowchart for explaining the operation of the first embodiment of the present invention. First, association information is recorded one by one on each RF tag attached to an envelope that is read collectively by the association information recording means 50a (S1). Next, the tag ID information and the association information are collectively read by the reader / writer 100 and stored in the memory of the PC 50 (S2). Then, it is determined whether or not all of the tag ID information and the association information recorded in the memory are prepared by the link determination means 50b (S3). If they are ready (YES route in S3), it is determined that they are linked (S4), and the PC 50 determines that the RF tag 200 recorded information collectively read by the reader / writer 100 is not read out (S5). ). If it is not complete in step S3 (NO route in S3), it is determined that there is no link (S6), and the PC 50 determines that each RF tag 200 recorded information read in batch by the reader / writer 100 is read out. Then (S7), the process returns to step S2 to restart the batch reading. At this time, if there is a reading error even if the batch reading is performed a predetermined number of times, an error may be displayed and stopped.

FIG. 8A is a configuration diagram of a reader / writer system according to the second embodiment of the present invention. The same components will be described with the same reference numerals. In this embodiment, a reader / writer 100 that collectively reads and writes recorded information recorded on RF tags 200 attached to a plurality of envelopes (articles) 35 and a PC (control means) 50 that controls the reader / writer 100. And comprising. The PC 50 has a missing number in the sequence number recording means 50c for recording the sequence number on each RF tag attached to a plurality of articles and the sequence number recorded on each RF tag 200 attached to the plurality of envelopes 35. A missing number determining means 50d for determining whether or not to perform is provided. FIG. 8B is a diagram in which the recording information of the RF tag 200 attached to the plurality of envelopes 35 is collectively read by the reader / writer 100. FIG. 8C is a diagram for explaining the stored contents stored in the memory of the PC 50.
As described above, the present embodiment prepares for batch reading while recording the sequence number in advance on each RF tag of the articles to be read at once. When all sequence numbers have been recorded, batch reading is performed in that unit. Naturally, if the RF tags of all envelopes can be read normally, the sequence numbers should match the numbers recorded without any missing numbers.

  FIG. 9 is a flowchart for explaining the operation of the second embodiment of the present invention. This will be described with reference to FIG. First, the sequence number recording means 50c records the sequence numbers one by one on each RF tag attached to the envelope to be collectively read (S11). In step S12, it is determined whether or not the sequence numbers have been recorded in all the RF tags (S12). When the recording is completed (YES route in S12), the tag ID information and the sequence numbers are read by the reader / writer 100 in a batch. Store in the memory (S13). Next, it is determined whether or not there is a missing number in the sequence number recorded in the memory by the missing number determining means 50d (S14). If there is no missing number (YES route in S14), the PC 50 determines that the RF tag 200 record information read in batch by the reader / writer 100 is not read out (S15). If there is a missing number in step S14 (NO route in S14), the PC 50 determines that each RF tag 200 recorded information read in batch by the reader / writer 100 has been read out (S16) and returns to step S13 to batch. Resume reading. At this time, if there is a reading error even if the batch reading is performed a predetermined number of times, an error may be displayed and stopped.

FIG. 10A is a configuration diagram of a reader / writer system according to the third embodiment of the present invention. The same components will be described with the same reference numerals. In the present embodiment, a reader / writer 100 that collectively reads and writes recorded information recorded on RF tags 200 attached to a plurality of envelopes (articles) 35, a weighing unit 110 that measures the weight of the envelope 35, a reader And a writer 100 and a PC 50 for controlling the weighing means 110. Note that the reader / writer 100 may be integrally provided with the weighing means 110. The PC 50 includes weight recording means 50e for recording the weight of each envelope 35 measured by the weighing means 110 on the RF tag 200 attached to the envelope 35, and a plurality of envelopes attached with the RF tag on which the weight is recorded. Weight reading means 50f for weighing the total weight of the plurality of envelopes 35 and comparing them with the total weight value of the individual envelopes 35 recorded in the record information when the 35 pieces of recorded information are collectively read. FIG. 10B is a diagram in which the recording information of the RF tags 200 attached to the plurality of envelopes 35 is read at once by the reader / writer 100 and the total weight of the plurality of envelopes 35 is measured by the measuring means 110. FIG. 10C is a diagram for explaining the stored contents stored in the memory of the PC 50.
As described above, the present embodiment measures the weight of articles to be read at once and prepares for batch reading while recording the measured value on each RF tag. When all the measured values have been recorded, all the envelopes are weighed at the same time as reading in units, and if the total measured value recorded on each RF tag matches the weight of all envelopes, the recorded information will be recorded. Means that there is no overwriting.

  FIG. 11 is a flowchart for explaining the operation of the third embodiment of the present invention. This will be described with reference to FIG. First, the weight of the envelope is weighed and recorded by the weighing means 110 on each RF tag attached to the envelope that is collectively read by the weight recording means 50e, and is also recorded in the memory of the PC 50 (S21). When all the envelopes have been weighed, the envelopes are stored in the containers 36, and the weight data of the RF tags attached to the envelopes are collectively read by a reader / writer, and the total weight of the envelopes is weighed by the weighing means 110. (S22). These data are stored in the memory of the PC 50. Next, the weight data of the RF tag stored in the memory is summed (S23), and the weight data and the total weight stored in the memory are compared by the weight comparison means 50f (S24). If they are equal (YES route in S24) The PC 50 determines that the RF tag 200 recorded information read in batch by the reader / writer 100 is not read out (S25). Here, when the RF tag “C” is read out among the RF tags read at once as shown in FIG. 10C, the total weight data becomes “550 g”, and all the weights measured by the weighing means 110 are obtained. It no longer matches the weight “650 g” (NO route in S24). As a result, the PC 50 determines that each RF tag 200 recorded information read together by the reader / writer 100 has been read out (S26), and returns to step S22 to resume batch reading and weighing. At this time, if there is a reading error even if the batch reading is performed a predetermined number of times, an error may be displayed and stopped.

FIG. 12A is a configuration diagram of a reader / writer system according to the fourth embodiment of the present invention. The same components will be described with the same reference numerals. The present embodiment includes a reader / writer 100 that collectively reads and writes recorded information recorded on RF tags 200 attached to a plurality of envelopes (articles) 35, and a PC 50 that controls the reader / writer 100. The The PC 50 records the total number of the plurality of envelopes 35 on at least one representative RF tag 210, the total number when the plurality of envelopes 35 are collectively read, and the representative RF tag 50g. Number comparison means 50h for comparing the total number recorded in the table. FIG. 12B is a diagram in which the reader / writer 100 reads the recorded information of the RF tag 200 and the representative RF tag 210 attached to the plurality of envelopes 35. FIG. 12C is a diagram for explaining the operation of comparing the total number counted by the PC 50 with the number of representative RF tags 210.
As described above, in the present embodiment, the number of envelopes to be read at once is known in advance, and the number is recorded in one representative RF tag 210. Then, if the number of envelopes read by starting the batch reading of envelopes and the number recorded on the representative RF tag 210 coincide with each other, it is determined that the recorded information is not read out.

  FIG. 13 is a flowchart for explaining the operation of the fourth embodiment of the present invention. This will be described with reference to FIG. First, the number of envelopes to be read at once is counted (S31). Next, the total number counted by the number recording means 50g is recorded on the representative RF tag 210 (S32). Next, all envelopes including the representative RF tag 210 are stored in the container 36, and the record information of the RF tag attached to each envelope is read at once with a reader / writer, and the number data of the representative RF tag 210 is read ( S33). These data are stored in the memory of the PC 50. Next, the number of recorded information of the RF tag stored in the memory is summed, and the total number and the total number of representative RF tags 210 stored in the memory are compared by the number comparing means 50h (S34). YES route) The PC 50 determines that the RF tag 200 recorded information collectively read by the reader / writer 100 is not read out (S35). Here, when the RF tag “C” is read out among the RF tags read in a lump as shown in FIG. 12C, the total number becomes “25” and is recorded in the representative RF tag 210. The total number “26” does not match (NO route in S34). As a result, the PC 50 determines that each RF tag 200 recorded information read together by the reader / writer 100 has been read out (S36), returns to step S33, and resumes the batch reading. At this time, if there is a reading error even if the batch reading is performed a predetermined number of times, an error may be displayed and stopped.

FIG. 14A is a configuration diagram of a reader / writer system according to the fifth embodiment of the present invention. The same components will be described with the same reference numerals. The present embodiment includes a reader / writer 100 that collectively reads and writes recorded information recorded on RF tags 200 attached to a plurality of envelopes (articles) 35, and a PC 50 that controls the reader / writer 100. The The PC 50 is provided with a number comparison means 50i that compares the total number when articles whose number has been confirmed are collectively read with a predetermined number. FIG. 14B is a diagram in which recorded information of the RF tag 200 attached to the plurality of envelopes 35 is read at once by the reader / writer 100. FIG. 14C is a diagram for explaining the operation of comparing the total number counted by the PC 50 with the determined number.
As described above, in this embodiment, the number of articles is determined in advance, and batch reading is performed in units of the number. Then, if the number of envelopes read by starting batch reading of envelopes matches the determined number, it is determined that the recorded information is not read out.

  FIG. 15 is a flowchart for explaining the operation of the fifth embodiment of the present invention. This will be described with reference to FIG. First, the number of envelopes to be read in a batch is determined and input from an operation unit (not shown) of the PC 50 (S41). Next, all the envelopes 35 are accommodated in the container 36, and the record information of the RF tag attached to each envelope is read together by the reader / writer 100 (S42). These data are stored in the memory of the PC 50. Next, the number of recorded information of the RF tag stored in the memory is summed, and the total number and the determined number stored in the memory are compared by the number comparison means 50i (S43), and if they are equal (YES route in S43). The PC 50 determines that the RF tag 200 record information read in batch by the reader / writer 100 is not read out (S44). Here, when the RF tag “C” is read out among the RF tags read at once as shown in FIG. 14C, the total number is “25”, which matches the fixed number “26”. It disappears (NO route in S43). As a result, the PC 50 determines that each RF tag 200 recorded information read together by the reader / writer 100 has been read out (S45), and returns to step S42 to resume batch reading. At this time, if there is a reading error even if the batch reading is performed a predetermined number of times, an error may be displayed and stopped.

  As described above, the case of determining the number of envelopes has been described. However, the present invention is not limited to envelopes, and any article may be used as long as an RF tag is attached. In each embodiment, the case where the reader / writer 100 is used has been described. However, the reader / writer 100 may be a read-only reader if it is not necessary to newly record information in the RF tag. That is, in the case of FIG. 4, the association information 30 may be recorded in advance on the RF tag. In the case of FIG. 8, the sequence number may be recorded in advance on the RF tag. In the case of FIG. 10, weight data may be recorded in advance on the RF tag. In the case of FIG. 12, the number data may be recorded in the representative RF tag 210 in advance. In the above embodiment, the PC 50 is provided as a control means for controlling the reader / writer 100. However, the reader / writer 100 may be provided with all functions.

  30 association information, 35 envelope, 36 container, 50 PC (control device), 50a association information recording means, 50b link determination means, 100 reader / writer (R / W), 200 RF tag

Claims (14)

In a reader / writer system including a reader / writer that collectively reads and writes recorded information recorded on RF tags attached to a plurality of articles, and a control unit that controls the entire system,
The control means includes an association information recording means for recording information relating each RF tag attached to each of the plurality of articles on each RF tag, and the association information collectively read by the reader / writer. Link determination means for determining whether or not there is a link,
A reader / writer system characterized in that, when the link determination means determines that the association information is linked, the recorded information collectively read by the reader / writer is determined not to be read out.   2. The reader / writer system according to claim 1, wherein the association information is recorded in units of articles to be read at a time and does not overlap with association information of any other RF tag.   The link determination means collectively reads ID information of each RF tag attached to the plurality of articles and association information recorded by the association information recording means by the reader / writer and stores the information in a memory. 3. The reader / writer system according to claim 1, wherein, when the stored association information and the ID information of each RF tag are all provided, it is determined that the association information is linked. 4. In a reader / writer system including a reader / writer that collectively reads and writes recorded information recorded on RF tags attached to a plurality of articles, and a control unit that controls the entire system,
The control means includes a sequence number recording means for recording a sequence number on each RF tag attached to the plurality of articles, and a missing number in the sequence number recorded on each RF tag attached to the plurality of articles. Missing number determining means for determining whether or not,
A reader / writer system characterized in that, when the missing number judging means judges that there is no missing number in the sequence number, it is judged that the recorded information read at once by the reader / writer is not read out. In a reader / writer system including a reader / writer that collectively reads and writes recorded information recorded on RF tags attached to a plurality of articles, and a control unit that controls the entire system,
The control means includes weighing means for weighing the article, weight recording means for recording weight information of each article weighed by the weighing means on an RF tag attached to the individual article, and the weight A total value of individual weight information recorded on the RF tag by weighing the total weight of the plurality of articles when collectively reading the record information of the plurality of articles attached with the RF tag on which the information is recorded; A weight comparison means for comparing,
When the result of comparing the total weight of the plurality of articles and the total value of the individual weight information recorded on the RF tag by the weight comparison means matches, the recorded information read in a batch by the reader / writer A reader / writer system characterized in that it is determined that there is no reading over. In a reader / writer system including a reader / writer that collectively reads and writes recorded information recorded on RF tags attached to a plurality of articles, and a control unit that controls the entire system,
The control means includes a number recording means for recording total number information of the plurality of articles on at least one representative RF tag, a total number when the plurality of articles are collectively read, and the representative RF tag. A number comparison means for comparing the total number information recorded,
When the total number when the plurality of articles are collectively read by the number comparison means matches the result of comparison of the total number information recorded on the representative RF tag, the total number is read by the reader / writer. A reader / writer system characterized in that the recorded information is judged not to be read out. In a reader / writer system comprising: a reader / writer that collectively reads and writes recorded information recorded on RF tags attached to a plurality of articles whose number is fixed; and a control unit that controls the entire system.
The control means includes number comparison means for comparing total number information obtained by collectively reading RF tags attached to a plurality of articles whose number is determined, and a predetermined number counted in advance.
When the total number of the RF tags attached to the articles whose number has been determined by the number comparison unit is collectively read and the result of comparing the determined number is the same, the reader / writer collectively A reader / writer system characterized in that the read record information is judged not to be read out. In a reader system comprising a reader that collectively reads record information recorded on RF tags attached to a plurality of articles, and a control unit that controls the entire system,
Whether the association information is linked to each other when the reader collectively reads each RF tag in which association information associated with each RF tag attached to each of the plurality of articles is recorded in advance. Link determining means for determining whether or not,
When it is determined by the link determination means that the association information recorded in all the RF tags is linked, it is determined that the recorded information collectively read by the reader is not read out. Reader system.   9. The reader system according to claim 8, wherein the association information is recorded in units of articles to be read in a lump and does not overlap with association information of any other RF tag.   The link determination means collectively reads ID information and association information of each RF tag attached to the plurality of articles by the reader and stores them in a memory. The association information stored in the memory and each RF tag 10. The reader system according to claim 8, wherein the association information is determined to be linked when all the ID information is collected. In a reader system comprising a reader that collectively reads record information recorded on RF tags attached to a plurality of articles, and a control unit that controls the entire system,
The control means includes missing number determination means for determining whether or not there is a missing number in a sequence number recorded in each RF tag attached to the plurality of articles,
The reader system according to claim 1, wherein when the missing number determining unit determines that there is no missing number in the sequence number, the recorded information read by the reader at a time is determined not to be read out. In a reader system comprising a reader that collectively reads record information recorded on RF tags attached to a plurality of articles, and a control unit that controls the entire system,
When the control means collectively reads the record information of a plurality of articles attached with a measurement means for measuring the weight of the article and an RF tag on which the weight information of the individual articles weighed by the measurement means is recorded. And a weight comparison means for weighing the total weight of the plurality of articles and comparing it with a total value of individual weight information recorded in the RF tag,
When the weight comparison means matches the total weight of the plurality of articles with the total value of the individual weight information recorded on the RF tag, the recorded information read in batch by the reader is not read. A reader system that judges that there is no drop. In a reader system comprising a reader that collectively reads record information recorded on RF tags attached to a plurality of articles, and a control unit that controls the entire system,
The control means includes a representative RF tag that records the total number information of the plurality of articles, a total number when the plurality of articles are collectively read, and a total number information recorded on the representative RF tag. A number comparison means for comparing,
When the total number when the plurality of articles are collectively read by the number comparison unit and the total number information recorded on the representative RF tag match, the total number is read by the reader. A reader system characterized in that it is determined that there is no overwriting in recorded information. In a reader system comprising: a reader that collectively reads record information recorded on RF tags attached to articles whose number is fixed; and a control unit that controls the entire system.
The control means includes number comparison means for comparing total number information obtained by collectively reading RF tags attached to a plurality of articles whose number is determined, and a predetermined number counted in advance.
When the total number of the RF tags attached to the articles whose number is determined by the number comparison means is collectively read and the result of comparison of the determined number is the same, the reading is collectively performed by the reader. A reader system characterized in that the recorded information is determined not to be read out.

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