JPH0586593B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an electronic card that has a read/write function to a magnetic card and allows information to be written to the magnetic card in accordance with product sales. This is related to the transaction register.

[Conventional technology]

Electronic cash registers (hereinafter referred to as
The ECR (abbreviated as ECR) is mainly composed of a microcomputer, and has the function of storing and managing shopping details for each customer, sales by item, sales details by time period, sales item details by time period, etc. are doing.

On the other hand, in recent years, some stores have appeared that offer services to their loyal customers, such as credit card sales or sending out prizes for the total amount of purchases made within a specific period. , ECR (including POS) has appeared that allows the magnetic card to update and record the cumulative total of each purchase.

This ECR has a magnetic recording/reproducing device connected to the ECR itself as a terminal, and the details of each customer's shopping are entered, and before the register closing process is performed, a magnetic card is inserted into the magnetic recording/reproducing device and the information is recorded in the recording unit. When you read the contents and then operate the register closing process, the ECR unit will tally up the purchases, and after the closing process is completed, the cumulative amount of purchases will be calculated and the data in the total amount column will be updated. is sent to a magnetic recording/reproducing device. Then, the magnetic recording/reproducing device records the data sent from the ECR main body in the magnetic recording section of the magnetic card, and then sends out the magnetic card. The cashier hands this magnetic card to the customer.

In this type of ECR, in the case of premium services, the total amount of purchased products is related to the rank of the prize, and in the case of credit sales, it affects subsequent payments and payment limit management, so the settlement process of purchased products, that is, the register closing process. In the same way as data is recorded on a previously read magnetic card, the data recorded on the magnetic card is read out before the closing process begins, and after the closing process, this data is edited and written again. In the case of a device, even if you intentionally or accidentally remove the magnetic card that has been read before completing the shopping process and replace it with another magnetic card, the magnetic card will not be checked when writing, so it will not be recorded on another person's card. is easy to do and has many problems. Furthermore, since there is no function to check if data is not being exchanged normally between the ECR and the magnetic recording/reproducing device, errors may occur, such as in the case of a momentary power outage. Data lacks reliability because it is unknown even if data is exchanged.

[Problem that the invention seeks to solve]

In this way, it has a magnetic recording and reproducing device for magnetic cards, and can read all the data contents of the magnetic cards.
The ECR sends the data to the ECR, the ECR side edits the data and sends it back after completing the closing process, and the magnetic recording/reproducing device records the sent data back onto the magnetic card. It reads out the contents of the magnetic card that the customer previously issued, edits this data after the closing process, and
Writing is performed again, but at that time, no check is made to see if it is the same card at the time of reading and writing.

Therefore, even if you intentionally remove the read magnetic card and replace it with another magnetic card before the closing process for purchased items, the magnetic card is not checked when writing, making it easy to record on another person's card. , there are many problems. Furthermore, even if data is not being sent or received correctly between the ECR and the magnetic recording/reproducing device, there is no function to check this, so even if incorrect data is sent or received, it will not be known. There were problems such as lack of reliability.

Therefore, the purpose of this invention is to prevent the replacement of magnetic cards, and also to have a function to check whether the data written on the magnetic card is equal to the data sent from the ECR main body, and to ensure the reliability of the data sent and received. An object of the present invention is to provide an electronic cash register which can hold the following information.

[Means for solving problems]

In order to achieve the above object, the present invention is configured as follows. In other words, if you have a magnetic recording and reproducing device that records and reproduces data on a magnetic card, and you make the magnetic recording and reproducing device read the recorded contents of the magnetic card received from the customer at the time of paying for shopping, this read data will be processed after the closing process. In the electronic cash register, the electronic cash register has a control section having a function of adding and editing data, transmitting the edited data to the magnetic recording/reproducing device, and commanding the edited data to be updated and recorded on the magnetic card. has a verification function that reads the recorded data of the magnetic card again when updating the data record of the magnetic card and compares it with the recorded data of the magnetic card read at the time of payment, and when the result of this verification matches, it permits the update of the magnetic card record. In addition, the control unit has a check function that reads data from the magnetic card and compares it with the given data after the update recording of the magnetic recording/reproducing device is performed, and a check function that reads the data from the magnetic card and checks the results of the data comparison.
Provide a function to rewrite when there is a mismatch.

[Effect]

In such a configuration, a magnetic recording and reproducing device that records and reproduces data on a magnetic card is made to read the recorded contents of a magnetic card received from a customer when paying for shopping. Then, this read data is sent to the control section of the electronic cash register and held in the control section. When the cashier inputs and aggregates the data of the products purchased by the customer and performs closing processing, the control unit edits the customer's shopping data to update the necessary items with respect to the previously read data. Then, a command is given to the magnetic recording/reproducing device again to read the data recorded on the magnetic card. When the data recorded on the magnetic card is read, it is compared with the previously read data to check whether the magnetic card has been replaced. As a result of this check, if there is a match, the data is sent to the magnetic recording/reproducing device to instruct it to update and record the edited data on the magnetic card. Furthermore, once the update recording is completed, the recorded contents are read out again and compared with the edited data. If they do not match, writing and checking are repeated. Therefore, according to the present invention, it is possible to prevent the magnetic card from being replaced, and it is also possible to check whether the data written on the magnetic card is equal to the data sent from the electronic cash register main body, and to check whether the data being exchanged is the same. It is possible to provide an electronic cash register that can be trusted.

〔Example〕

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

A schematic external view of the device according to the present invention is shown in FIG. 1, a block diagram of its main parts is shown in FIG. 2, and the functions of the control section are shown in flowcharts in FIG. show.

In FIG. 1, 1 is the ECR main body, and 2 is a keyboard. The keyboard 2 is provided with a number key, a cash/total key, a subtotal key, a total key for magnetic card processing, and other function keys. 3 is the display of the ECR main body 1;
Input contents, setting mode, error display, calculation results,
Used to display change, etc. 4 is a magnetic recording/reproducing device (reader/writer), which is electrically connected to the ECR main body 1, reads the recorded contents from the magnetic track of the inserted magnetic card, sends it to the ECR main body 1, and also reads the recorded contents from the magnetic track of the inserted magnetic card. It has the function of recording data sent from 1 onto a magnetic card.
Reference numeral 5 denotes a magnetic card insertion/ejection port of the magnetic recording/reproducing device 4. Figure 2 shows the basic block of this device. In the figure, 2 is the keyboard, 3 is the display, and 21 is
The control unit 21 is a control unit of the ECR, and the control unit 21 has various calculation processes necessary for ECR on input data, necessary display of the processing results on the display 3, data editing processing, data check function, and other control functions. ing. 22 is a memory that stores input data, information for checking magnetic card negative (NEGA; stolen card information), and positive (POSI).
information for credit checks), storage of magnetic card read data, storage of edited data, etc.
In addition to storing aggregated data for each purchased item, RAM (Random Access Memory) is used for program work areas, temporary data storage, key buffers, etc., and ROM (read/read memory) is used to store processing programs for the control unit 21. (only memory). 4 is a magnetic recording/reproducing device connected to the control section 21, and 23 is a journal printer connected to the control section 21 for issuing receipts and printing stored data.

In such a configuration, referring to the flowchart in FIG. 3, when a customer uses a magnetic card to make a purchase, the customer receives the magnetic card,
This is applied to the magnetic recording/reproducing device 1 to first read the recorded data on the card. As shown in Figure 4, a standard magnetic card consists of 72 digits (one digit consists of one byte) of data recorded on the card, including a start code, ID, PIN, membership code, membership number, etc. A necessary information group is recorded in , and an end code and the like are recorded at the end. The necessary information group includes the total purchase price, etc.

This read data is the terminal body, i.e.
It is sent to the control unit 21 of the ECR. The control unit 21 temporarily stores this in the buffer, and then stores it in the memory 22.
By referring to the negative (NEGA) and positive (POSI) data (for example, using the membership number or membership code, etc.) stored in the RAM in advance, the negative (NEGA; stolen) and positive (POSI; credit) data of the card are determined. (or expiration date, etc., if necessary) to confirm that the card is valid for use. In the event of an error, the card cannot be used, so a message to that effect is displayed. When it is determined that the card can be used, the control unit 22 stores this card information in the terminal main body 22 (this is assumed). Thereafter, the cashier performs various product registration operations, and then performs closing processing by pressing the ``total'' key, which is a payment key using a card.

The closing process is carried out by the control unit 21, and its details are specifically as follows. In other words, add the current purchase total amount to the previous purchase total amount in the card reading data stored in the above method, replace the purchase total amount area in the data with this total amount, and re-read the data as the cumulative amount. Edit (let this be).

At this point, read the contents of the magnetic card again (this is assumed).

Here, data of 72 digits (here, each digit has a size of 1 byte) is compared with . As a result of this comparison, if everything matches, it is considered normal, and if there is a mismatch, it is considered a card error.

In the event of a card error, payment by card is prohibited for credit sales, and updating of records on the card is prohibited for service cards. Then, that effect is displayed on the display 3.

If normal, proceed to the next step of writing. That is, the data is recorded on the magnetic card via the magnetic recording/reproducing device, and after the recording is completed, the control unit 21 gives a read command to the magnetic recording/reproducing device 4 to read out the recorded contents of the magnetic card (this data is read out). do). Here, 72 digits of data are compared and checked, and if they do not match, control is performed to return to the writing step and write again.

Note that rewriting is performed for a predetermined limit number of times, and if the rewriting does not match even after reaching this limit number of times, it is stopped and the card is treated as defective.

As a result of checking the data with the
The printer 23 prints, issues a receipt, returns the magnetic card, and completes the process for the customer.

When updating data on magnetic cards in circulation, partial recording is not possible, and it is necessary to write all 72 digits of data at once. Therefore, before executing the update record, check whether the cards are the same or not.
This device, which re-checks updated data, is extremely important in terms of reliability. In particular, even if magnetic cards are exchanged by mistake or on purpose within section A in the flowchart of Figure 3a, it can be accurately determined that the cards are different, and accidents such as writing on another person's card can be prevented. In addition, writing of incorrect data due to an accident during writing can be prevented, and the reliability of the card system can be greatly improved. This will lead to the spread of cards and increase in sales.
As a result of the above, the reliability of cards, which are personal assets, is further increased, and they become a major pillar of credit transactions.

It goes without saying that the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications within the scope without changing the gist.

〔Effect of the invention〕

As described in detail above, according to the present invention, it is possible to prevent the magnetic card from being replaced, and it is also possible to check whether the data written on the magnetic card is equal to the data sent from the electronic cash register main body. It is possible to provide an electronic cash register in which data sent and received can be trusted.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the external appearance of this device, Fig. 2 is a block diagram showing an embodiment of the invention, Fig. 3 is a flowchart for explaining its operation, and Fig. 4 is data on a magnetic card. FIG. 3 is a diagram showing a format. 1... ECR body, 2... Keyboard, 3...
Display unit, 4... Magnetic recording/reproducing device (card reader/writer), 5... Card insertion/ejection port, 21...
...Control unit, 22...Memory, 23...Journal printer.

Claims (1)

[Claims] 1. A magnetic recording and reproducing device that records and reproduces data on a magnetic card, and when the magnetic recording and reproducing device reads the recorded contents of the magnetic card received from a customer at the time of paying for shopping, the read data is On the other hand, in an electronic cash register having a control section having a function of adding and editing data after closing processing, sending the edited data to the magnetic recording/reproducing device, and commanding the edited data to be updated and recorded on the magnetic card. , the control section has a verification function that reads the recorded data of the magnetic card again when updating the data record of the magnetic card and compares it with the recorded data read at the time of payment, and when the result of this verification matches, the record of the magnetic card is updated. An electronic cash register characterized by having a record update permission function. 2. The control unit according to claim 1, characterized in that the control unit is provided with a check function for reading data from the magnetic card and comparing it with the given data after the update recording of the magnetic recording/reproducing device is performed. Electronic cash register. 3. The electronic cash register as set forth in claim 2, wherein the control section is further provided with a function of executing rewriting when there is a discrepancy as a result of data verification.