JP6775100B1 - Billing information management device, billing information management method and program - Google Patents

Abstract

The billing information management device 1 associates the billing amount described in the plurality of invoices, the issuer identification information for identifying the business operator who issued the plurality of invoices, and the issue date of the plurality of invoices. The storage unit 13 to be stored, the amount or quantity of goods described in the first invoice issued on the first issue date, one or more second issue dates before the first issue date, and the first invoice. A comparison unit 142 and a comparison unit that compare the amount or number of products described in one or more second invoices stored in the storage unit 13 in association with the issuer identification information of the business operator that issued the document. It has an output unit 143 that outputs notification information indicating that the difference has occurred when the result of the comparison of 142 indicates a difference satisfying a predetermined condition.

Description

The present invention relates to a billing information management device, a billing information management method and a program.

There is known an accounting system that reads a product name and amount from image data of an invoice and creates journal data based on the read product name and amount (see, for example, Patent Document 1).

JP-A-2018-173935

Companies may purchase the same product on a regular basis. Even in such a case, the amount of the product to be purchased is changed without the manager of the company purchasing the product knowing, or the number of orders is increasing without the manager of the company knowing. Sometimes. If the price of a product has been raised, the company that purchases the product may consider asking the company that issued the invoice for the reason or switching to another company's product. If the number of orders is increasing, there is room for discount negotiations. However, since the administrator processes a large number of invoices, even if the issuer of the invoice changes the price of the product or the number of ordered products increases, it may be left unnoticed. There was a problem.

Therefore, the present invention has been made in view of these points, and an object of the present invention is to make it easier for the recipient of the invoice to notice that the purchase price or the number of purchases of the product has changed.

The billing information management device according to the first aspect of the present invention includes a billing amount described in a plurality of bills, an issuing business identification information for identifying a business operator who has issued the plurality of bills, and the plurality of bills. A storage unit that stores the issue date of the document in association with it, the amount or number of products stated in the first invoice issued on the first issue date, and one or more items before the first issue date. The amount or number of the goods described in the second issue date and one or more second invoices stored in the storage unit in association with the issuer identification information of the business operator who issued the first invoice. It has a comparison unit for comparing with and, and an output unit for outputting notification information indicating that a difference has occurred when the result of comparison by the comparison unit indicates a difference satisfying a predetermined condition.

The comparison unit compares the first amount of money, which is the amount of goods stated in the first invoice, with the second amount of money, which is the amount of goods described in one or more of the second invoices. The output unit may output the notification information when the first amount of money is higher than the second amount of money by a difference corresponding to the predetermined condition or more.

The comparison unit may compare the same amount of money continuously described within a preset period with the first amount of money as the second amount of money.

The comparison unit compares the first quantity, which is the number of the products described in the first invoice, with the second quantity, which is the number of the products described in the one or more second invoices. The output unit may output the notification information when the first number is larger than the second number by a difference corresponding to the predetermined condition or more.

The comparison unit includes the amount or quantity of the product described in the first invoice and the product described in the subsequent invoice issued by the business operator who issued the first invoice after the first issue date. The amount or quantity of the above may be further compared, and the output unit may output the notification information on condition that the comparison results match.

The comparison unit compares each of the plurality of products described in the first invoice with the amount or number of the same products described in the one or more second invoices, and the output unit is the output unit. Among a plurality of products, the notification information including information for identifying a product in which the result of comparison by the comparison unit indicates a difference satisfying a predetermined condition may be output.

The storage unit further stores the change date, which is the date when the price or the number of orders for the product is changed in association with the product, and the comparison unit is used in the first invoice issued on the first issue date. The amount or quantity of the stated goods and the said goods described in the one or more second invoices whose second issue date is before the first issue date and after the change date. You may compare it with the amount or quantity.

The output unit may output the notification information when the amount of the product described in the first invoice is larger than a predetermined reference amount by a threshold value or more.

The billing information management method according to the second aspect of the present invention includes a billing amount described in a plurality of invoices executed by a computer and an issuer identification information for identifying a business operator who has issued the plurality of invoices. , The step of associating the issue dates of the plurality of invoices with each other and storing them in the storage unit, the amount or quantity of the products described in the first invoice issued on the first issue date, and the first issue date. Described in one or more second issue dates prior to the above, and in one or more second invoices stored in the storage unit in association with the issuer identification information of the business operator that issued the first invoice. It has a step of comparing the amount or quantity of the product, and a step of outputting notification information indicating that the difference has occurred when the comparison result shows a difference satisfying a predetermined condition. ..

In the program of the third aspect of the present invention, the computer is subjected to the billing amount described in the plurality of invoices, the issuer identification information for identifying the business operator who issued the plurality of invoices, and the plurality of bills. The storage control unit that stores the issue date of the document in the storage unit, the amount or quantity of the product described in the first invoice issued on the first issue date, and the amount or quantity of the product before the first issue date. The product described in one or more second issue dates and one or more second invoices stored in the storage unit in association with the issuer identification information of the business operator that issued the first invoice. As a comparison unit that compares the amount or number of items, and an output unit that outputs notification information indicating that a difference has occurred when the comparison result of the comparison unit indicates a difference that satisfies a predetermined condition. Make it work.

According to the present invention, it is possible for the recipient of the invoice to easily notice that the purchase price or the number of purchases of the product has changed.

It is a figure for demonstrating the outline of the billing information management apparatus. It is a figure which shows an example of the invoice received by the business operator who manages an invoice using a billing information management device. It is a figure which shows the functional structure of the billing information management apparatus. It is a figure which shows an example of the invoice information database which a storage part stores. It is a flowchart which shows the operation flow of the billing information management apparatus.

[Overview of billing information management device 1]
FIG. 1 is a diagram for explaining an outline of the billing information management device 1. The billing information management device 1 uses the result of acquiring the billing image data generated by the reading device 2 (for example, a scanner or a digital camera) reading the bill and analyzing the character string included in the billing image data. It is a device for managing invoices, for example, a computer. The billing information management device 1 may be composed of one computer or a plurality of computers.

FIG. 2 is a diagram showing an example of an invoice received by a business operator who manages the invoice using the billing information management device 1. The invoice shown in FIG. 2 contains the name, address, and contact information of the business operator that issued the invoice (hereinafter referred to as "issuing business operator"). In addition, the number of purchased products and the amount of purchased products (that is, the billed amount) are described. The billing information management device 1 registers and manages this information in the billing information database.

The billing information management device 1 analyzes the contents of a plurality of invoices issued by the same business operator on a regular basis, and when the amount of goods or the number of goods described in the invoices changes. Notify the administrator that changes are occurring and the details of the changes. The manager is, for example, a person who is involved in the accounting business of the company, such as the accounting staff of the company who received the invoice, a person who is involved in the purchasing business of the company, or a representative of the company.

It is not easy for an administrator who processes a large number of invoices to notice changes in the amount of goods and the number of purchases of goods, but the billing information management device 1 changes the amount of goods and purchases of goods. By notifying that the number is changing, the administrator can notice the change early. When the price of the product is high, the manager can confirm the price with the business operator who issued the invoice or the person in charge of ordering the product, and it is possible to pay more than necessary. It becomes possible to prevent it. In addition, when the number of purchases of goods is increasing, the manager negotiates the price with the company that issued the invoice and confirms with the person in charge of ordering whether the number of purchases is appropriate. It will be possible to reduce costs.

[Functional configuration and operation of billing information management device 1]
FIG. 3 is a diagram showing a functional configuration of the billing information management device 1. The billing information management device 1 includes a display unit 11, a communication unit 12, a storage unit 13, and a control unit 14. The control unit 14 includes a character string specifying unit 141, a comparison unit 142, and an output unit 143.

The display unit 11 is a display for displaying information. Based on the instruction of the output unit 143, the display unit 11 displays a list of various data included in the invoice, and displays notification information indicating that the content of the invoice has changed.

The communication unit 12 is a communication interface for connecting to a network (for example, an intranet or the Internet), and has a communication controller for transmitting and receiving data to and from another computer. The communication unit 12 transmits, for example, various data included in the invoice and notification information indicating that the contents of the invoice have changed to another computer.

Other computers are, for example, computers used by administrators. When the notification information arrives at its computer, the administrator can recognize that the amount or quantity stated on the invoice is different from the amount or quantity stated on the past invoice. .. The notification information includes link information for accessing the invoice information database, and the administrator can click the link information to display the data contained in multiple invoices corresponding to the notification information. Can be viewed in chronological order.

The storage unit 13 has a storage medium such as a ROM (Read Only Memory), a RAM (Random Access Memory), and a hard disk. The storage unit 13 stores a program executed by the control unit 14. In addition, the storage unit 13 stores the invoice image data acquired from the reading device 2.

The storage unit 13 further stores an invoice information database in which various data described in the invoice are registered, which is extracted from the invoice image data. Specifically, the storage unit 13 includes the billing amount described in the plurality of invoices, the issuer identification information for identifying the business operator that issued the plurality of invoices, the issue date of the plurality of invoices, and the like. Stores the invoice information database associated with.

FIG. 4 is a diagram showing an example of an invoice information database stored in the storage unit 13. In the invoice information database shown in FIG. 4, the issuer name as an example of the issuer identification information, the issue date of the invoice, the invoice amount for each of the plurality of products, and the number of purchases for each of the plurality of products are used. Is associated. The invoice information database may further include invoice identification information (eg, invoice number) for identifying invoices.

In the example shown in FIG. 4 (a), among a large number of information associated with a large number of invoices issued by a plurality of issuers, the information described in the invoice issued by "Tanaka Shoji" at the end of each month. Only are shown in the extracted state. In the example shown in FIG. 4B, among a large number of information associated with a large number of invoices issued by a plurality of issuers, the information described in the invoice issued by "Sato Foods" at the end of each month. Only are shown in the extracted state. The administrator who received the notification information can browse the list data as shown in FIG. 4, for example. The administrator can also display the invoice image data of the invoice in which the data is described by clicking a part of the list data.

The control unit 14 is, for example, a CPU (Central Processing Unit). The control unit 14 functions as the character string specifying unit 141, the comparison unit 142, and the output unit 143 by executing the program stored in the storage unit 13.

The character string specifying unit 141 acquires the invoice image data generated by the reading device 2, and identifies a plurality of character strings included in the invoice based on the acquired invoice image data. The character string specifying unit 141 identifies the character string included in the invoice based on the invoice image data, for example, by executing the OCR process. The character string specified by the character string specifying unit 141 is, for example, the issuer name, the issue date, the billing amount of each product, and the number of purchases of each product, and the characters corresponding to the information registered in the invoice information database. It is a column. The character string identification unit 141 is equipped with, for example, an artificial intelligence engine, and for example, by using a machine learning model constructed by deep learning the relationship between image data and a character string as teacher data, with high accuracy. Identify the string.

The character string identification unit 141 stores the invoice amounts described in the plurality of invoices, the issuer identification information that identifies the business operator that issued the plurality of invoices, and the issue dates of the plurality of invoices in association with each other. It functions as a storage control unit to be stored in the unit 13. That is, when the character string specifying unit 141 specifies the character string included in the invoice, the character string to be registered in the invoice information database among the specified character string corresponds to the character string in the storage unit 13. Store in the area. The character string specifying unit 141 may notify the comparison unit 142 of the specified character string.

By referring to the invoice information database, the comparison unit 142 refers to the first invoice issued on the first issue date and the first invoice on one or more second issue dates prior to the first issue date. Compare with the second invoice issued by the business that issued the. The first issue date is the issue date of the invoice for which the amount or quantity stated in the invoice is to be checked, for example, the issue date of the invoice newly registered in the invoice information database.

The comparison unit 142 stores the amount or quantity of the goods described in the first invoice in association with the issuer identification information of one or more second issue dates and the issuer of the first invoice. Compare with the amount or quantity of goods stated in one or more stored second invoices. For example, the comparison unit 142 compares each of the plurality of products described in the first invoice with the amount or number of the same products described in one or more second invoices. As a result of the comparison, the comparison unit 142 notifies the output unit 143 of the amount difference or the number difference.

The output unit 143 outputs notification information based on the comparison result notified from the comparison unit 142. In the output unit 143, for example, the amount or number of goods described in the latest invoice (first invoice) is significantly different from the amount or number of goods described in the past invoice (second invoice). If so, the notification information including the name of the issuing company of the first invoice and the second invoice, the corresponding product name, and the amount of change in the amount or the number of items is output. The output unit 143 may output notification information including link information for accessing the data corresponding to the first invoice and the second invoice. The output unit 143 may output the notification information to the display unit 11 for display, or may transmit the notification information to an external computer via the communication unit 12. The administrator can take appropriate measures by checking the output notification information.

The details of the operation of the comparison unit 142 and the output unit 143 will be described below. As an example, the comparison unit 142 compares the first amount, which is the amount of goods stated in the first invoice, with the second amount, which is the amount of goods described in one or more second invoices.

In the example of the invoice information database shown in FIG. 4 (a), assuming that the first issue date, which is the date when the latest invoice was issued, is August 31, 2019, the comparison unit 142 determines that 2019. The first amount (5,830 yen), which is the amount of copy paper stated on the invoice issued on August 31, and multiple invoices issued before August 31, 2019, respectively. Compare with the second amount, which is the amount of copy paper listed in. Similarly, the comparison unit 142 has the first amount (4,400 yen), which is the amount of ink stated in the invoice issued on August 31, 2019, and the amount before August 31, 2019. Compare with the second amount, which is the amount of ink stated in each of the plurality of invoices issued in.

In the comparison unit 142, the amount of copy paper stated in the invoice issued in August 2019 does not match the amount of copy paper stated in the invoice issued in August 2019. Is determined. The comparison unit 142 notifies the output unit 143 that a difference of 330 yen has occurred. The comparison unit 142 determines that there is no change in the amount of ink.

By the way, for products whose monthly billing amount or number of orders fluctuates, it is considered that it is not important for the manager to monitor changes in the amount or quantity, and even in such a case, the amount or quantity has changed. If the output unit 143 outputs the notification information indicating the above, the work of the administrator becomes complicated. Therefore, the comparison unit 142 compares the same amount of money continuously described within a preset period with the first amount of money as the second amount of money. The comparison unit 142 does not compare the first amount and the second amount when the same amount does not continue for a preset period. The same applies to the number.

In the example shown in FIG. 4A, it is assumed that the preset period is 6 months. In this case, the output unit 143 has a copy paper amount of 5,500 yen stated in the invoice issued during the six months from February to July 2019 in August 2019, and August 2019. Compare with the amount of copy paper of 5,830 yen stated on the invoice issued in. In the comparison unit 142, the amount of the copy paper stated in the invoice issued in August 2019 is the copy stated in all the invoices issued from February 2019 to July 2019. It is determined that the amount of money is higher than the same amount of paper, and the output unit 143 outputs the notification information. By operating the comparison unit 142 and the output unit 143 in this way, products with the same monthly billing amount are compared, so that the administrator is notified that the prices of other products have changed. It is suppressed.

Further, the comparison unit 142 compares the first quantity, which is the number of products described in the first invoice, with the second quantity, which is the number of products described in one or more second invoices. In the example of the invoice information database shown in FIG. 4 (b), assuming that the first issue date, which is the date when the latest invoice was issued, is August 31, 2019, the comparison unit 142 determines that 2019. The first number (20), which is the number of teas listed on the invoice issued on August 31, and the number of teas issued before August 31, 2019, respectively. Compare with the second number of teas.

In the comparison unit 142, the number of teas stated in the invoice issued in August 2019 is one with the number of teas stated in the invoices issued in June 2019 and July 2019. Judge that you are doing it. In addition, the comparison unit 142 indicates that the number of teas stated in the invoice issued in August 2019 is the number of teas stated in the invoice issued from January 2019 to May 2019. Judge more than. The comparison unit 142 determines that there is no change in the number of coffee beans.

Further, in the comparison unit 142, the amount of tea stated in the invoice issued in August 2019 is the amount of tea stated in the invoice issued from January 2019 to May 2019. Judge more than. The comparison unit 142 notifies the output unit 143 of the determination result, and the output unit 143 outputs notification information indicating that the number has changed.

When both the amount and the number of goods have changed as shown in FIG. 4B, the comparison unit 142 may calculate the unit price of the goods and compare the unit prices. In the case of the example shown in FIG. 4B, the comparison unit 142 determines that the unit price of tea has not changed and the ordered quantity has increased. When the unit price is increasing, the comparison unit 142 notifies the output unit 143 that both the number and the unit price are increasing, and the output unit 143 indicates that both the number and the unit price are increasing. Output notification information.

The output unit 143 may output notification information indicating that a difference has occurred when the result of comparison by the comparison unit 142 indicates a difference satisfying a predetermined condition. The predetermined condition is, for example, an amount difference or a quantity difference set by the administrator. The predetermined condition is that the result of the comparison is equal to or greater than a value obtained by multiplying a fixed amount or number of bills issued in succession by a ratio set by the administrator. May be good.

When the comparison result that the amount of money is different is input from the comparison unit 142, the output unit 143 is, for example, the second issue in which the first amount corresponding to the first issue date is earlier than the first issue date. Notification information is output when the difference is higher than the second amount corresponding to the day by a difference corresponding to a predetermined condition. In the example shown in FIG. 4A, assuming that the amount difference corresponding to the predetermined condition is 5% or more with respect to the fixed amount up to the immediately preceding month, the invoice issued on August 31, 2019 The amount of copy paper of 5,830 yen is more than 5% higher than the amount of 5,500 yen up to the previous month. Therefore, the output unit 143 outputs notification information indicating that the amount of money is increasing when the invoice on July 31, 2019 is registered in the invoice information database.

The output unit 143 provides notification information when a comparison result indicating that there is a difference in the number is input from the comparison unit 142, for example, when the first number is larger than the second number by a difference corresponding to a predetermined condition or more. Output. In the example shown in FIG. 4 (b), assuming that the number difference corresponding to the predetermined condition is more than twice the number in the immediately preceding month, the tea in the invoice issued on June 30, 2019 The number of 20 is double that of 10 which is a fixed number up to the previous month. Therefore, the output unit 143 outputs notification information indicating that the number of invoices is increasing when the invoice on June 30, 2019 is registered in the invoice information database.

By the way, if the amount or number of items changes in one invoice, it is assumed that the administrator does not need to grasp the change. Therefore, the comparison unit 142 sets the amount or quantity of the goods described in the first invoice (for example, the invoice issued on August 31, 2019) and the business operator who issued the first invoice after the first issue date. May be further compared with the amount or quantity of goods stated in subsequent invoices issued by (eg, invoices issued on September 30, 2019). The number of subsequent invoices to be compared with the amount or number of first invoices is arbitrary and is set, for example, by the administrator.

When the comparison unit 142 operates in this way, the output unit 143 has the same comparison result between the amount or number described in the first invoice and the amount or number described in the subsequent invoice, and the first On the condition that the amount or quantity stated in one invoice is different from the amount or quantity stated in the second invoice in the past, notification information indicating that the amount or quantity has changed is output. By operating the comparison unit 142 and the output unit 143 in this way, the administrator does not notify the change even if the amount or the number of items in one invoice changes, so the administrator confirms. The number of target cases can be reduced.

Here, even if the amount or quantity has changed, if the manager knows that the price or the number of orders for the product has changed, the amount or quantity will change to the amount or quantity stated on the invoice. Even if the above occurs, it is not necessary for the output unit 143 to output the notification information. Therefore, the communication unit 12 may further store the change date, which is the date when the price or the number of orders for the product is changed, in association with the product. The change date is set, for example, by the administrator.

In this case, the comparison unit 142 indicates that the amount or quantity of the goods stated in the first invoice issued on the first issue date and the second issue date are before the first issue date and from the change date. Also compare with the amount or quantity of goods stated in one or more second invoices later. That is, the comparison unit 142 does not compare the amount or quantity stated in the invoice issued before the time when the manager knows that the price or the number of orders of the product has changed. Invoices issued during periods when the administrator is not aware that the price or number of orders has changed are subject to comparison. By operating the comparison unit 142 in this way, it is possible to prevent the administrator from being notified of the notification information even though the administrator knows that the price of the product or the number of orders has changed. ..

By the way, if the price of the product stated in the first invoice deviates significantly from the market price of the product, whether or not the price of the product has changed from the price stated in the past invoice. It doesn't matter. Therefore, the output unit 143 may output notification information indicating that the price of the product described in the first invoice deviates from the market price when the price of the product is larger than the predetermined reference price by a threshold value or more. .. The predetermined reference amount may be stored in the storage unit 13 in advance, or may be acquired from an external device that provides the market price. The threshold value is a value set in advance by the administrator. By operating the output unit 143 in this way, it is possible to reduce the risk of the person in charge of ordering fraudulently obtaining a kickback from the business partner. In addition, when the market price drops, it is possible to prevent the purchase of a product higher than the market price.

[Operation flow of billing information management device 1]
FIG. 5 is a flowchart showing the operation flow of the billing information management device 1. The flowchart shown in FIG. 5 starts from the time when the invoice image data is input to the character string specifying unit 141.

When the invoice image data of the first invoice is input to the character string specifying unit 141, the character string specifying unit 141 specifies the character string included in the invoice image data (S11). The comparison unit 142 identifies the issuer name among the character strings specified by the character string identification unit 141 (S12), accesses the invoice information database, and accesses the past invoice data (that is, the data of the second invoice). ) (S13).

The comparison unit 142 determines whether or not the same product name is included in the first invoice and the second invoice (S14). When the comparison unit 142 determines that the names of the same products are not included (NO in S14), the comparison unit 142 ends the process. When the comparison unit 142 determines that the same product name is included (YES in S14), the comparison unit 142 proceeds to S15 and determines whether or not the amount of the product has increased (S15).

When the comparison unit 142 determines that the price of the product is increasing (YES in S15), the output unit 143 creates the first notification information indicating that the price is increasing (S16), and in S17. move on. When the comparison unit 142 determines that the price of the product has not increased (NO in S15), the output unit 143 does not create the first notification information.

Subsequently, the comparison unit 142 determines whether or not the number of products is increasing (S17). When the comparison unit 142 determines that the number of products has increased, the output unit 143 creates a second notification information indicating that the number of products has increased (S18). If the comparison unit 142 determines that the number of products has not increased, the second notification information is not created. The output unit 143 outputs notification information indicating that the amount or quantity has changed when at least one of the first notification information and the second notification information is created (S19).

[Modification example]
In the above description, the case where the output unit 143 outputs the notification information when the amount or quantity described in the invoice becomes larger than the amount or quantity described in the past invoice has been illustrated. The conditions under which the output unit 143 outputs notification information are not limited to this. The output unit 143 may output notification information when the amount or quantity stated in the invoice becomes smaller than the amount or quantity stated in the past invoice. By operating the output unit 143 in this way, the administrator who uses the billing information management device 1 can confirm with the invoice issuing company whether or not the invoice is correct.

[Effect of billing information management device 1]
As described above, the comparison unit 142 has the amount or quantity of the goods stated in the first invoice issued on the first issue date and one or more second issue dates prior to the first issue date. Compare the amount or quantity of goods stated in one or more second invoices issued by the business operator that issued the first invoice. Then, when the result of comparison by the comparison unit 142 satisfies a predetermined condition, the output unit 143 outputs notification information indicating that fact. By operating the comparison unit 142 and the output unit 143 in this way, for example, when the administrator confirms the notification information, it is possible to take measures according to the change contents of the amount or the number described in the invoice.

For example, if the price of a product has been raised, the manager can confirm the reason with the company that issued the invoice or switch to another company's product. In addition, when the number of orders is increasing, the manager can negotiate a discount.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes can be made within the scope of the gist. is there. For example, all or part of the device can be functionally or physically distributed / integrated in any unit. Also included in the embodiments of the present invention are new embodiments resulting from any combination of the plurality of embodiments. The effect of the new embodiment produced by the combination has the effect of the original embodiment.

For example, in the above description, the case where the storage unit 13 is provided in the billing information management device 1 has been illustrated, but the storage unit 13 may be provided in the external device of the billing information management device 1. In this case, the billing information management device 1 and the external device are combined to function as a billing information management device.

1 Billing information management device 2 Reading device 11 Display unit 12 Communication unit 13 Storage unit 14 Control unit 141 Character string identification unit 142 Comparison unit 143 Output unit

Claims (10)

A storage unit that stores the invoice amounts described in the plurality of invoices, the issuer identification information that identifies the business operator that issued the plurality of invoices, and the issue dates of the plurality of invoices in association with each other. ,
The amount or quantity of goods stated in the first invoice issued on the first issue date, one or more second issue dates prior to the first issue date, and the business that issued the first invoice. A comparison unit that compares the amount or quantity of the goods described in one or more second invoices stored in the storage unit in association with the issuer identification information of the person.
When the comparison result of the comparison unit shows a difference satisfying a predetermined condition, an output unit that outputs notification information indicating that the difference has occurred and an output unit.
Billing information management device having. The comparison unit compares the first amount of goods, which is the amount of goods stated in the first invoice, with the second amount of money, which is the amount of goods described in one or more of the second invoices.
The output unit outputs the notification information when the first amount of money is higher than the second amount of money by a difference corresponding to the predetermined condition or more.
The billing information management device according to claim 1. The comparison unit compares the same amount of money continuously described within a preset period with the first amount of money as the second amount of money.
The billing information management device according to claim 2. The comparison unit compares the first quantity, which is the number of the products described in the first invoice, with the second quantity, which is the number of the products described in the one or more second invoices. ,
The output unit outputs the notification information when the first number is larger than the second number by a difference corresponding to the predetermined condition or more.
The billing information management device according to any one of claims 1 to 3. The comparison unit includes the amount or quantity of the product described in the first invoice and the product described in the subsequent invoice issued by the business operator who issued the first invoice after the first issue date. Further compare with the amount or quantity of
The output unit outputs the notification information on condition that the comparison results match.
The billing information management device according to any one of claims 1 to 4. The comparison unit compares each of the plurality of products described in the first invoice with the amount or number of the same products described in the one or more second invoices.
The output unit outputs the notification information including information for identifying a product among the plurality of products whose results of comparison by the comparison unit indicate a difference satisfying a predetermined condition.
The billing information management device according to any one of claims 1 to 5. The storage unit further stores the change date, which is the date when the price or the number of orders of the product is changed in association with the product.
In the comparison unit, the amount or quantity of the goods stated in the first invoice issued on the first issue date and the second issue date are before the first issue date and from the change date. Compare with the amount or quantity of the goods stated in the one or more second invoices later.
The billing information management device according to any one of claims 1 to 6. The output unit outputs the notification information when the amount of the product described in the first invoice is larger than a predetermined reference amount by a threshold value or more.
The billing information management device according to any one of claims 1 to 7. Computer runs,
The invoice amount described in the plurality of invoices, the issuer identification information that identifies the business operator that issued the plurality of invoices, and the issue date of the plurality of invoices are associated and stored in the storage unit. Steps and
The amount or quantity of goods stated in the first invoice issued on the first issue date, one or more second issue dates prior to the first issue date, and the business that issued the first invoice. A step of comparing the amount or quantity of the goods described in one or more second invoices stored in the storage unit in association with the issuer identification information of the person.
When the comparison result shows a difference that satisfies a predetermined condition, a step of outputting notification information indicating that the difference has occurred, and a step
Billing information management method with. Computer,
The invoice amount described in the plurality of invoices, the issuer identification information that identifies the business operator that issued the plurality of invoices, and the issue date of the plurality of invoices are associated and stored in the storage unit. Memory control unit,
The amount or quantity of goods stated in the first invoice issued on the first issue date, one or more second issue dates prior to the first issue date, and the business that issued the first invoice. A comparison unit for comparing the amount or quantity of the goods described in one or more second invoices stored in the storage unit in association with the issuer identification information of the person, and the comparison unit for comparison. An output unit that outputs notification information indicating that a difference has occurred when the result indicates a difference that satisfies a predetermined condition.
A program to function as.

Images