JP2004265112A - Wireless tag reading device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To highly maintain reading accuracy of a wireless tag, and to downsize a device. <P>SOLUTION: An item placing part 12 on which a plurality of items are put together, for example, merchandise on which the wireless tag is each attached, is rotatable with the items placed on. Besides, an antenna 13 is each prepared at least either on the lower side or on the upper side of the item placing part 12 and the backside of the item placing part 12. The antenna 13 conducts reference by wireless electromagnetic wave to the wireless tag attached to each item which is placed on the item placing part 12, and sequentially receives information responded from each wireless tag by the wireless electromagnetic wave to the reference. Therefore, information stored in the storing part of the wireless tag attached to each item which is placed on the item placing part 12, for example, merchandise distinguishing code or the like is read from the information of the wireless tag received by each antenna 13. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wireless tag reader that collectively reads information stored in a storage unit of each product, for example, each wireless tag attached to the product.
[0002]
[Prior art]
A product registration system that simplifies product registration using a wireless tag reader that collectively reads information stored in memories of a plurality of wireless tags has been developed. This system attaches a wireless tag in which a product identification code or the like unique to the product is stored for each product. Then, memory information such as a product identification code is collectively read from the wireless tag attached to the product for one customer put in the shopping basket by the wireless tag reader, and the product for one customer is read based on the memory information. (For example, see Patent Document 1).
[0003]
By the way, in order to read the memory information from the wireless tags attached to all the articles put in the shopping basket or the like without omission, an inquiry is made to each wireless tag by a wireless electromagnetic wave, and the wireless electromagnetic wave is transmitted from each wireless tag. Therefore, it is necessary to provide an antenna for receiving information transmitted to the inquiry partner in all directions of the shopping basket. For this reason, conventionally, as shown in FIG. 6, a tunnel-shaped antenna mounting portion 2 through which a shopping basket 4 can pass is provided substantially at the center of a horizontally long counter 1, and six antennas 3 are provided around the antenna mounting portion 2. -1,3-2,3-3,3-4,3-5,3-6 are arranged. Then, by passing a shopping basket (products not shown) 4 containing the products of one customer through the tunnel of the antenna mounting portion 2, the memory information of the wireless tag attached to each product is read. Was.
[0004]
[Patent Document 1]
JP-A-10-049756
[Problems to be solved by the invention]
However, the conventional wireless tag reader requires the tunnel-shaped antenna mounting portion 2 that can pass through the container in which the article with the wireless tag is stored, so that the area occupied by the antenna mounting portion 2 increases. , It had to be a large device. In addition, a space for placing the housing like the counter 1 is required on both sides of the antenna mounting portion 2, and it is difficult to reduce the size of the device from this point, and the space efficiency is low.
[0006]
Further, it is required to push the container such as the shopping basket 4 into the tunnel of the antenna mounting portion 2 or to pull it out of the tunnel, which is very labor intensive for the worker. In addition, there is also a restriction that in order to collectively pass a large number of items through the tunnel, the items must be put in a container such as the shopping basket 4.
[0007]
The present invention has been made based on such circumstances, and an object of the present invention is to collectively read information stored in a storage unit of each wireless tag attached to a plurality of articles with high accuracy. Needless to say, an object of the present invention is to provide a wireless tag reader that can reduce the size of the device, improve the space efficiency, and greatly reduce the burden on the operator.
[0008]
[Means for Solving the Problems]
The wireless tag reading device according to the present invention is capable of rotating a plurality of articles to which the wireless tags are respectively attached, for example, an article mounting section on which articles are collectively mounted, with the articles placed thereon. Further, an antenna is provided on at least one of the lower side and the upper side of the article placement section and the rear of the article placement section. Each antenna makes an inquiry by a radio electromagnetic wave to the wireless tag attached to each article placed on the article mounting section, and sequentially responds to the inquiry with information responded by the wireless electromagnetic wave from each wireless tag. To receive. Then, based on information from the wireless tag received by each antenna, information stored in the storage section of the wireless tag attached to each article placed on the article placement section, such as a product identification code, is read. I made it.
[0009]
By adopting such a configuration, each product placed on the product placement unit always approaches the antenna provided behind the product placement unit by rotation of the product placement unit. The information of each wireless tag attached to each product is accurately read by the provided antenna and the antenna provided at least one of below and above the article placement unit. Therefore, there is no need to provide an antenna in front of or on the side of the article placement unit. Therefore, the articles can be placed on the article placement section from the front or the side of the article placement section, so that the work is easy. In addition, there is no need to provide a table on both sides of the article placement section, and space can be utilized.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In this embodiment, the wireless tag reader of the present invention is used as a product identification code input device of a product registration system.
[0011]
1A and 1B are external perspective views of a wireless tag reader 10 according to this embodiment, and FIG. 2 is a block diagram illustrating a main part configuration of the wireless tag reader 10. The wireless tag reader 10 has a circular rotating plate (hereinafter, abbreviated as a rotating plate) 12 as an article mounting portion attached to the center of the upper surface of a rectangular reading table 11. The rotating plate 12 can be rotated substantially horizontally by a rotating mechanism 15 incorporated in the reading stand 11 with the article and the shopping basket 4 in which the article is placed.
[0012]
The wireless tag reader 10 has a first antenna 13-1 embedded in a reading stand 11 located below the rotating plate 12. Further, a C-shaped antenna mounting portion 14 is provided integrally with the reading stand 11 from the rear end of the reading stand 11 toward the upper part of the rotary plate 12. The second antenna 13-2 and the third antenna 13-3 are vertically embedded in a portion of the antenna mounting portion 14 located behind the rotary plate 12, and the second antenna 13-2 and the third antenna 13-3 are embedded in a portion located above the rotary plate 12. 4 antenna 13-4 is embedded.
[0013]
In the present embodiment, as shown in FIG. 3, a wireless tag 31 in which a tag code and a product code are stored in a memory is attached to each product 30. As the tag code, a different value is set for each wireless tag 31 and functions as a tag identification code. In the product code, a different value is set for the type of the product, and functions as a product identification code. The first to fourth antennas 13-1 to 13-4 make inquiries by wireless electromagnetic waves to the wireless tags 31 attached to the respective products 30, and in response to the inquiry, the wireless tags 31 , The tag information and the product code are received.
[0014]
The wireless tag reader 10 is provided with a microprocessor 21 as a control unit main body. The microprocessor 21 controls the weighing scale 22, the drive motor 23, the product sensor 24, the antenna circuit 25, the operation display unit 26, the communication interface 27, the product information file 28, and the work memory 29, respectively. .
[0015]
The weighing scale 22 measures the weight of the article placed on the rotating plate 12, and constitutes a total weight measuring means.
The drive motor 23 is a drive source of the rotation mechanism 15. When the driving motor 23 is turned on and power is transmitted, the rotating mechanism 15 rotates the rotating plate 12 clockwise, for example. The rotating plate 12 may be rotated counterclockwise, or the motor 23 may be rotated clockwise and counterclockwise alternately by normal rotation and reverse rotation.
[0016]
The product sensor 24 detects a state in which a product 30 or an article such as the shopping basket 4 is placed on the rotating plate 12, and functions as a detection unit. As the product sensor 24, a weight sensor that detects that the weight is changed by an article placed on the rotating plate 12, an optical sensor that detects that light is blocked by the article placed on the rotating plate 12, or the like is used. be able to.
[0017]
The antenna circuit 25 controls wireless electromagnetic wave transmission and reception of each of the antennas 13-1 to 13-4.
The operation display unit 26 includes a basket presence button 261, a reading lamp 262, and a reading end lamp 263, and is attached to, for example, the back side of the antenna attachment unit 14. The basket presence button 261 is a button for an operator (usually a cashier) to declare that a product for one customer has been placed on the rotating plate 12 in a state of being put in the shopping basket 4. It has a declaration receiving means for detecting that the presence button 261 has been operated.
[0018]
The communication interface 27 performs data communication with the POS terminal 40 using a wired or wireless connection. The POS terminal 40 functions as a payment device that processes payment for a product 30 purchased by a customer.
[0019]
As shown in FIG. 4, the product information file 28 stores and stores the product code, product name, product price, and product weight set for each product 30 for each product. The product price and the product weight are the selling price and the weight value of one product for which the corresponding product code is set.
The work memory 29 forms a product total weight area 291, a total weight area 292, and a product data area 293 as memory areas for one customer.
[0020]
The microprocessor 21 executes the processing shown in the flowchart of FIG. 5 for one customer. Note that, as an initial state, the areas 291 to 293 of the work memory 29 have been cleared. The lamps 262 and 263 of the operation display unit 26 are turned off. The drive motor 23 is stopped.
[0021]
The microprocessor 21 waits for the commodity sensor 24 to be turned on as ST (step) 1. When the product 30 or the shopping basket 14 containing the product 30 is placed on the rotating plate 12, the product sensor 24 is turned on. Therefore, when the microprocessor 21 detects that the product sensor 24 is turned on, the microprocessor 21 proceeds to ST2. The weighing value by the weighing scale 22 is read. Then, this weighing value is stored in the total product weight area 291 of the work memory 29 as ST3.
[0022]
Next, the microprocessor 21 starts the drive motor 23 in ST4, rotates the rotating plate 12 via the rotating mechanism 15 (rotation control means), and turns on or blinks the reading lamp 262 of the operation display unit 26. Then, the operator is notified that the memory information of the wireless tag 31 is being read.
[0023]
Next, the microprocessor 21 reads the memory information (tag code, product code) of each wireless tag 31 attached to each product 30 placed on the rotary plate 12 in ST5 (tag information reading means). That is, the microprocessor 21 controls the antenna circuit 25 to cause the antennas 13-1 to 13-4 to transmit a signal for inquiring the wireless tag 31 about memory information by wireless electromagnetic waves. Upon receiving the inquiry signal, the wireless tag 31 transmits the tag code and the product code information stored in the memory by wireless electromagnetic waves, and the wireless electromagnetic waves are received by the antennas 13-1 to 13-4 of the inquiry signal transmission source. Therefore, the microprocessor 21 reads the memory information of each wireless tag 31 via the antenna circuit 25.
[0024]
Each time the microprocessor 21 reads the memory information of the wireless tag 31, the microprocessor 21 determines whether or not the tag code of the memory information is a new code not stored in the product data area 293 at ST6. If the tag code has already been stored in the product data area 293 and is not a new code, the process returns to ST5 to read the next memory information of the wireless tag 31.
[0025]
If the tag code of the memory information read from the wireless tag 31 is a new code, the microprocessor 21 acquires a product code from the memory information in ST7. In step ST8, the product information file 28 is searched to read the product information of the product name, the product price, and the product weight set corresponding to the product code, and stored in the product data area 293 together with the tag code and the product code. I do. In step ST9, the product weight of the product information is added to the value of the total weight area 293.
[0026]
Next, the microprocessor 21 compares the value of the product total weight area 291 and the value of the total weight area 292 to determine whether or not they match (ST10) (reception completion determining means). If they do not match, the process returns to ST5 to read the next memory information of the wireless tag 31.
[0027]
If the microprocessor 21 detects that the basket presence button 261 of the operation display unit 26 has been operated in ST11 before the memory information of the wireless tag 31 is read in ST5, the microprocessor 21 determines in ST12 the value of the total weight area 292. Is added to the preset weight value of the shopping basket 4. Thereafter, the process proceeds to ST10, where the value of the product total weight area 291 and the value of the total weight area 292 are compared to determine whether they match (reception completion determination means). If they do not match, the process returns to ST5 to acquire the memory information of the next wireless tag 31.
[0028]
If the value of the total weight area 292 matches the value of the product total weight area 291 in ST10, the microprocessor 21 sets the wireless tags attached to the products for one customer placed on the rotating plate 12 respectively. It is determined that the reception of the memory information responded from 31 has been completed. Then, in ST13, the driving motor 23 is stopped to stop the rotation of the rotating plate 12 (rotation stopping means). Further, transmission of wireless electromagnetic waves from each of the antennas 13-1 to 13-4 is also stopped. Further, the reading lamp 62 is turned off, and the reading end lamp 263 is turned on or blinks to notify the worker of the end of reading the wireless tag of the product for one customer.
[0029]
It should be noted that the determination as to whether or not the value of the total weight area 292 matches the value of the product total weight area 291 does not need to be a perfect match, but has a slight tolerance. That is, when the value of the total weight area 292 becomes substantially equal to the value of the commodity total weight area 291, it is determined that they match.
[0030]
Thereafter, the microprocessor 21 reads the product code, the product name, and the product price from the data stored in the product data area 293 in ST14, and transmits them to the POS terminal 40 via the communication interface 27 (information output means). As a result, the POS terminal 40 processes the sales of merchandise for one customer based on the information on the merchandise code, the merchandise name, and the merchandise price sent from the wireless tag reader 10. Here, the wireless tag reading device 10 functions as a product code input device of the product registration system.
[0031]
After transmitting the information of the product data area 293 to the POS terminal 40, the microprocessor 21 waits for the product sensor 24 to be turned off in ST15. When the product 30 for one customer placed on the rotating plate 12 or the shopping basket 4 containing the product 30 is removed, the product sensor 24 is turned off. 21 clears each area 291, 292, 293 of the work memory 29 as ST16. Further, the reading end lamp 263 is turned off, and the processing for one customer is ended.
[0032]
If the product sensor 24 is turned off in ST17 before the memory information of the wireless tag 31 is read in ST5, the product is removed during the wireless tag reading process of the product for one customer and the transaction is performed. Is interrupted, the microprocessor 21 clears the areas 291, 292, and 293 of the work memory 29, turns off the reading lamp 262, and ends the processing for one customer.
[0033]
In the present embodiment configured as described above, all the commodities 30 purchased by one customer are collectively placed on the rotating plate 12 of the wireless tag reader 10. At this time, each product 30 may be placed after being placed in the shopping basket 4, or only the product 30 may be placed without being placed in the shopping basket 4.
[0034]
When the product 30 is placed on the rotating plate 12, the total weight of the product 30 is measured by the weighing scale 22, that is, the total weight of each product 30 when the shopping basket 4 is not used, and the total weight of each product 30 when the shopping basket 4 is used. The weight obtained by adding the weight of the shopping basket 4 to the total weight is measured. The measured total weight is stored in the product total weight area 291.
[0035]
After weighing the total weight, the rotating plate 12 starts rotating. In addition, wireless antennas for inquiring each wireless tag 31 about memory information are transmitted from the antennas 13-1 to 13-4. Thereby, the wireless tag 31 attached to the product 30 placed near the center axis of the rotating plate 12 can be attached to the first antenna 13-1 provided below the rotating plate 12 or the fourth antenna provided above. Responds to wireless electromagnetic waves from antenna 13-4. Also, even if the wireless tag 31 attached to the product 30 placed near the periphery of the rotating plate 12 does not respond to the wireless electromagnetic wave from the first antenna 13-1 or the fourth antenna 13-4, The second antenna 13-2 or the third antenna 13-2 or the third antenna 13-3, which is always provided behind the rotary plate 12 with the rotation of the rotary plate 12, approaches the second antenna 13-2 and the third antenna 13-3. Respond to wireless electromagnetic waves from 13-3. Therefore, the memory information of each wireless tag 31 attached to the product 30 for one customer placed on the rotating plate 12 is stored in the wireless tag reader regardless of whether the product 30 is put in the shopping basket 4. 10 ensures reading.
[0036]
When the memory information of the wireless tag 31 is read, it is determined from the tag code of the memory information whether or not the information of the wireless tag 31 has already been read. Only when a new tag code is read, a product code stored in the memory of the wireless tag 31 is acquired together with the tag code, and a product set in the product information file 28 corresponding to the product code is acquired. The name, product price and product weight are read. Then, the tag code, the product code, the product name, the product price, and the product weight are accumulated and stored in the product data area 293. Further, the product weight is added to the value of the total weight area 292.
[0037]
Therefore, when the product 30 is placed directly on the rotating plate 12 without entering the shopping basket 4, the total weight area is read when the memory information of the wireless tags 31 of all the products 30 in the basket 4 is read. Since the value of 292 substantially matches the value of the total product weight area 291, it is determined that reading has been completed, and the rotating plate 12 stops.
[0038]
On the other hand, when the purchased product 30 is put in the shopping basket 4, the value of the total weight area 292 is not changed even if the memory information of the wireless tags 31 of all the products 30 placed on the rotating plate 12 is read as it is. The value of the total weight area 291 is not reached. Therefore, in this case, the basket presence button 261 is operated. Then, since the basket weight is added to the value of the total weight area 292, the value of the total weight area 292 becomes the value of the product total weight area 291 when the memory information of the wireless tags 31 of all the products 30 is read. They substantially coincide with each other, and the rotation of the rotating plate 12 stops.
[0039]
If the operator has forgotten to operate the basket presence button 261, the value of the total weight area 292 is shorter than the value of the total product weight area 291 by the weight of the shopping basket 4. Absent. By the way, when the shopping basket 4 is not used and the button is operated to subtract the basket weight from the total weight area 292, if the user forgets to operate the button, the product weighs substantially equal to the basket weight. Even if the information of the attached wireless tag has not been read, the value of the total weight area 292 substantially coincides with the value of the product total weight area 291, and it may be erroneously determined that the reading is completed.
[0040]
As described above, according to the present embodiment, a product for one customer is simply placed on the rotating plate 12 from the front or both sides of the wireless tag reader 10, and the wireless tag attached to the product for one customer is read. Since it is possible to collectively and accurately read the memory information 31, the burden on the operator can be greatly reduced as compared with the case where a conventional device provided with the tunnel-shaped antenna mounting portion 2 is used. Further, there is no restriction that the product 30 for one customer must be put in the shopping basket 4.
[0041]
Further, since the antenna mounting portion 14 is not provided in front of or on the side of the rotary plate 12, the area occupied by the antenna mounting portion 14 can be reduced, and the space for placing the shopping basket 4 on both sides of the antenna mounting portion 14 is also reduced. Since it is not necessary, the wireless tag reader 10 can be made compact. As a result, a large-sized structure such as the counter 1 can be eliminated, so that the store can use the space of the accounting place efficiently. Incidentally, it is preferable that the shopping basket 4 has a square horizontal section or a circular shape so that the antennas 13-2 and 13-3 behind the rotating plate 12 and the products in the basket come as close as possible.
[0042]
In the above-described embodiment, it is detected that the product 30 for one customer is placed on the rotating plate 12, and the rotating plate 12 is automatically rotated, and the wireless tag attached to the product for one customer is detected. When it is determined that the reading of the memory information of the rotary plate 12 is completed, the rotary plate 12 is automatically stopped. However, for example, a button for commanding the stop of the rotary plate 12 is provided on the operation display unit 26, and only the stop of the rotary plate 12 is manually performed. It may be performed in. By doing so, the hardware and software configurations of the reception completion determination unit using the weight value can be completely eliminated, and the configuration can be simplified.
[0043]
Further, even when the drive motor 23 and the rotation mechanism 22 are omitted and the rotary plate 12 is manually rotated, the operator rotates the rotary plate 12 by hand after placing the product on the rotary plate 12. Therefore, the workability is good, and the burden on the worker is reduced as compared with the related art in which the shopping basket 4 is passed through the tunnel-shaped antenna mounting portion 2.
[0044]
In the above-described embodiment, the four antennas 13-1 to 13-4 are used, but at least one is provided below or above the rotating plate 12, and one is provided behind the rotating plate 12. I just need to get it. Further, the rotating plate 12 as the article placement unit does not necessarily need to be a disk. Any shape may be used as long as it does not hinder rotation while the article is placed.
[0045]
In the above embodiment, the product information file 28 is provided to store the product name, price, and weight of each product for each product code. However, at least a part of the information is stored in the memory of the wireless tag 31, You may make it read by the wireless tag reader 10 with a code and a product code.
[0046]
Further, in the above embodiment, when the total of the product total weight for one customer and the product weight value set corresponding to the product code read from the wireless tag 31 match, the product placement unit (the rotating plate 12). )), It is determined that the information responding from the wireless tags 31 attached to all the articles placed on the antennas 13-1 to 13-4 has been received, but the reception completion determining means is not limited to this. Instead, for example, the reception completion may be determined when a new tag code is not read for a certain period of time.
[0047]
Further, the tagless tag reader of the present invention can be applied to devices other than the product identification code input device of the product registration system. For example, the present invention can also be applied to a management system or an inspection system for articles that are put in and taken out.
[0048]
【The invention's effect】
As described in detail above, according to the wireless tag reading apparatus of the present invention, it is possible to accurately and collectively read information stored in the storage sections of the wireless tags attached to a plurality of articles, respectively. It is possible to achieve an excellent effect that the size of the device can be reduced, the space efficiency can be improved, and the burden on the operator can be greatly reduced.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a wireless tag reader according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a main configuration of the wireless tag reader.
FIG. 3 is a schematic diagram for explaining a relationship between a product and a wireless tag in the embodiment.
FIG. 4 is a schematic diagram showing a data structure of a product information file included in the wireless tag reader in the embodiment.
FIG. 5 is a flowchart showing a main part of main processing executed by a microprocessor of the wireless tag reading device in the embodiment.
FIG. 6 is a perspective view showing an example of a conventional wireless tag reader.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Wireless tag reader, 12 ... Rotating plate, 13-1, 13-2, 13-3, 13-4 ... Antenna, 14 ... Antenna mounting part, 15 ... Rotating mechanism, 21 ... Microprocessor, 22 ... Weight scale , 24 ... product sensor, 26 ... operation display unit, 27 ... communication interface, 28 ... product information file, 31 ... wireless tag.

Claims (8)

In a wireless tag reader that reads information stored in a storage section of a wireless tag attached to each of a plurality of articles,
An article mounting portion rotatable in a state in which a plurality of articles each having the wireless tag attached thereto are collectively mounted,
Tag information reading means provided with an antenna for wirelessly receiving the information from the wireless tag at least one of below and above the article placement section and behind the article placement section,
A wireless tag reader, comprising: Detection means for detecting that an article has been placed on the article placement section, and rotation control means for rotating the article placement section in response to detecting that the article has been placed by the detection section. ,
The wireless tag reader according to claim 1, further comprising: Reception completion determination means for determining whether or not the information has been received by the antenna from the wireless tags attached to all the articles placed on the article placement section,
Rotation stop means for stopping the rotation of the article mounting part when the reception completion is determined by the reception completion determination means,
The wireless tag reader according to claim 2, further comprising: In a wireless tag reading device that reads information such as a product identification code stored in a storage unit of a wireless tag attached to each of a plurality of products,
An article placement section rotatable in a state where articles for one customer each having the wireless tag attached thereto are placed together;
An antenna for wirelessly communicating with the wireless tag is provided at least at one of a lower side and an upper side of the article placement section and a rear side of the article placement section, and the antenna is attached to a product for one customer from the wireless tag. Tag information reading means for reading information such as a product identification code;
Information output means for outputting information such as a product identification code read by the tag information reading means,
A wireless tag reader, comprising: Detecting means for detecting that one customer's product has been placed on the product placement unit;
Rotation control means for rotating the article placement section in response to detecting that the article for one customer has been placed by the detection means,
The wireless tag reader according to claim 4, further comprising: Reception completion determination means for determining whether or not all of the information has been received by the antenna from each wireless tag attached to a product for one customer placed on the product placement unit,
Rotation stop means for stopping the rotation of the article mounting part when the reception completion is determined by the reception completion determination means,
The wireless tag reader according to claim 5, further comprising: Product weight storage means for storing, for each product, a unit weight value which is a weight per product corresponding to the product identification code;
Total weight measuring means for measuring the total weight of the product for one customer placed on the product placement section,
The completion determination means reads out the unit weight stored by the commodity weight storage means in correspondence with the commodity identification code read from the wireless tag by the tag information reading means and totals the total weight, and the total weight is the total weight. 7. The wireless tag reader according to claim 6, wherein it is determined whether or not the weight value matches the weight value measured by the measuring means, and if it is determined that the weight value matches, the reception is completed. Providing a declaration receiving means for receiving a declaration that a product for one customer placed on the product placing portion is placed in a container,
The completion determination means reads out the unit weight stored by the commodity weight storage means in correspondence with the commodity identification code read from the wireless tag by the tag information reading means and totals the total weight, and the total weight is the total weight. Judgment is made as to whether or not the weight value matches the weight value measured by the measuring means, and when the declaration receiving means receives a declaration that the product for one customer is placed in the container, the total weight is added to the total weight. 8. The reception device according to claim 7, wherein the weight of the container is added to determine whether or not the weight value matches the weight value measured by the total weight measuring means, and if it is determined that the weight value matches, the reception is completed. Wireless tag reader.

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