DE19547363A1 - Cash register with data memory in form of secure chip card - Google Patents

Abstract

The electronic cash register is operated by software such that it cannot function unless a chip card (3) is inserted into its card reader (2) with information on the rights of usufruct e.g. with a VAT account. The control unit (4) checks via communication lines (5) that the card is present, that its period of validity has not expired and that the amt. of VAT on recorded transactions is within the authorised limit. If these conditions are not satisfied no receipt can be issued and the drawer cannot be opened.

Description

The invention relates to a cash register with egg nem data storage, which can be used by a authorized third parties can be read out.

It is known in the prior art to register cash registers to be provided with a data memory. The data memory is permanently stored in the cash register in installed and, if necessary, by an authorized third party read. It is preferred as data storage uses a hard drive.

The installation of a data memory in the registry kasse pursues the goal of a comparison of a increased with the VAT payment to be listed enable.

The usual process of the billing process supports electronic cash registers on the Printout of a daily report. These prints the as evidence of various bills at Tax office. Due to the execution of the cash registers Neither manipulation possibilities be closed. The laws of different states therefore write a cash register with one Financial data store, which stores the financial Transactions logged, mandatory before. On this is intended to protect against tampering  be enough. Among other things, the cash register will also sealed. The data acquisition is easy best case by printing via a built-in Printer on site.

Main problem with a built-in Financial data storage is the high administrative Effort when introducing the cash registers (Obligation to provide evidence, certification of suppliers, Sealing) and with ongoing controls what that Questioning reaching the goal.

The known designs have the disadvantage that that with the introduction of this cash register system a ho administrative effort is required. Au It is also disadvantageous that a hard drive mechanical influences from outside are destroyed can. The allowable accelerations for today usual hard drives were significantly enlarged eats, however, the possibility of destruction due to short, strong shocks in normal use cases cannot be excluded.

Installation of a memory in the registry Cash register also has the disadvantage that for controls an employee of the facility, which the data needed to take over the data at the location of the regi strierkasse must appear, which means additional Ko and time expenditure.

The invention has for its object a Re cash register with data storage to which the Data in a simple manner and at short intervals  taken and sent to an evaluation point can.

According to the invention, the problem is solved there by that a memory with a removable and easily transportable storage medium in the form of a chip card at the registrar cash register is attached and the portable storage about safety devices to protect against un has authorized access to the file.

An advantageous embodiment of the fiction According to the arrangement, the cash register has a network connection via which the Data is transferred to a server that is over the data storage.

The card can be used in the Checkout remains, it is not necessary to re-introduce the card every booking process.

It is also possible that at the cash register an additional time memory is attached.

The inventive method is that the data at the cash register with a Le segerät be read into a chip card, whereby the cash register only when the chip card is inserted is functional and the cash register with no or wrong Chip card is disabled and that the last accounting data in a fixed in the Cash register arranged storage can be registered.  

A special embodiment of the invention The procedure provides that the booking process is completed by Establishing contact with the chip card begins there after initially the presence of the smart card ge checks and this result to one in the Registration card existing control device is reported, if the result is negative in the Cash register registers this attempt and the further booking blocks and if the result is positive the right of use and the existing tax credit checked, again with a negative result this is registered and the function is blocked and if the result is positive, the booking process released and logged on the chip card becomes.

The arrangement according to the invention and the fiction according methods have the advantage that the Data exchange in any, even very short, Ab stands can be done without much effort. In order to the other advantage is that in the cash register only a data storage with low capacity turned on must be set.

Another advantage of the arrangement according to the invention The solution is that it succeeds in to use portable data storage, the nevertheless the required high security meets requirements.

The invention is based on an off management example explained in more detail.

In the accompanying drawing:  

Fig. 1 is a schematic representation of the register with cash register and financial data storage

Fig. 2 is a schematic diagram of the arrangement according to the Invention.

The example describes a use case for Transfer of data between an operator ner cash register, the more to be paid VAT automatically and counterfeit-proof at the Register the cash register and send the amounts to the tax office telt.

Chip cards are used as portable data carriers used. At the cash register is this Purpose a reader for smart cards attached. The Cash register is designed so that it is only functional if a correct chip card was inserted. Is none or one If the wrong chip card is inserted, the cash register remains inoperable. To avoid data loss most, for example through loss or wanton Destroy the chip card, the data of the last billing periods additionally in one on the The short-term memory attached to the cash register is saved. Only after inserting the billed chip card this data is released for overwriting. If the chip card is destroyed, it is possible that an authorized person can still transfer the data on site can take. From use cases of High security areas, it is known practically tried and true to those who rule there  Requests specially aligned chip cards add that are forgery-proof. You can for security either a password protection and / or who uses special encryption methods the. In addition to the chip cards, it is also possible Lich, memory cards, data cartridges, floppy disks, only write-once CDs and similar storage media use service.

It is also possible that a direct data Exchange in online procedure between registrants checkout and the evaluation office, here the finance office, via a communication network. For this For example, the telephone network can be used the. The chip card solution enables the Limit the validity of the chip card ken, so that it is guaranteed that after the expiry of the Deadline can no longer be used. The deadline can be extended at the tax office, which z. B. from dependent on the tax payment made that can.

It is still possible to extend the period of validity Restrict the value of the chip card, so that according to Er the chip is sufficient for a predetermined amount card must be approved again at the tax office. Debiting procedures and similar options are also possible options applicable.

The described method according to the invention allows relief of processing both for Fi nanzamt as well as with the user, since the data in the invoice ner readable and in any overview ren parts can be called. With that Controls can be automated and in a simple manner  anytime possible. A ban on setting the clock by the user is no longer necessary. All that is recorded on the chip card is when the clock was adjusted. In addition, with a special security procedure also the clock be put by yourself without yourself limit the control options. Thereby can the accuracy requirements on the clock ge be reduced what the total expenditure for the till lowers.

It is also possible that the store from the cash register separately at the authorized facility, e.g. B. the tax office, is attached, the cash register over a communication network with the authorized one direction is connected.

A major advantage is that Manipula options are largely eliminated.

Fig. 1 explains the use of egg nes movable, protected financial data store in the form of a chip card. For this purpose, a smart card reader 2 is integrated in the cash register 1 , which can hold the smart card 3 .

The software of the electronic cash register is designed so that the cash register without a chip card can't work. When the chip card is inserted in the cash register forms over the groove rights that are recorded on the chip card are. For example, a chip card can be used have a VAT credit, according to which Consumption of further operation of the cash register blocked  becomes. The user must now contact the tax office renewed VAT credit on the chip card strive. The tax offices can with the help of portable financial data storage all added value control tax payments based on settlements with the cash register.

To rule out manipulation, Siche measures for the use of the cash register be seen. So the chip cards have that contain an integrated processor, via Zu gang protection measures with password and data ver encryption that only the cash register and the Allow tax office access to data. At Loss or damage to the card is on it VAT tax credit booked automatically lig. A smaller part of the data can additionally can also be saved in the cash register to Be to be able to prove fraudulent attempts. Opposite one Cash register with built-in financial data memory is advantageous that neither sealed Kas a civil servant apparatus that controls on site must be necessary. The cash register can be mass-produced and without supervision are traded as the data on the smart cards be personalized.

As can be seen from Fig. 2, the control electronics of the cash register 4 is connected via a communication line 5 with the reader 2 and the chip card 3 . Before all relevant financial matters, the cash register provides a test sequence in which contact is made with the chip card via the communication line and the chip card, which itself represents a computer system, answers questions of the cash register. Depending on the answers, the desired process is then either carried out or rejected.

For the booking process with a final off printing the receipt and opening the drawer applies following procedure:

• 1. The cash register checks whether the chip card is present. If this is not the case, then no booking is possible, the process will not executed but in the register protokol liert.
• 2. If the chip card is inserted, the Re checks cash register, whether the chip card for the cash register is permitted and whether a usage authorization on the part of the tax office whether the Gül period of validity has been exceeded etc. For nega The booking outcome is the effective outcome of the check not executed, but the attempt logged on the chip card.
• 3. Was a debiting procedure with Fi nanzamt agreed, so in a third Step checked whether the be with the chip card VAT already collected exceeds the limit steps. If this is the case, the bu process not carried out. Otherwise it is executed and the financial Data is logged on the chip card.

The chip card basically works in all of them Control processes of the cash register. The example the procedure explained in the booking process applicable to all cash register functions. It is also possible the financial function with functions of the Zu coupling permission and thus the at Kas to replace the usual key switch.

As an exception, the trial run without Chip card are made possible. He always guarantees but only checking the individual functions the cash register, but not the cashier. It in this case no receipts are issued, no calculations etc.

The booking process begins by creating the Contact to the chip card. Then the front checked the presence of the chip card and this result to an existing one in the registration card Control device reported. If the result is negative this attempt is registered in the cash register and the further booking process is blocked. If the result is positive, the next thing is Right of use and the existing tax credit checked, again a negative result registered and the further booking function is blocked. If the result is positive, the Booking process released and on the chip card logged.

Claims (7)

1. Cash register with data storage for control capable of storing data, characterized net that a memory with a removable and easily transportable storage medium in the form of a chip card at the registrar cash register is attached and the portable storage about safety devices to protect against un has authorized access to the file. 2. Cash register according to claim 1, characterized records that the cash register has a Network connection has the data to a server that is transmitted over the data memory. 3. Cash register according to claim 1 or 2, characterized marked that at the cash register a too additional time memory is attached. 4. Cash register according to one of claims 1 to 3, characterized in that the memory of the Cash register separately at an authorized facility is attached, the cash register via a commun cation network with the authorized facility is bound.   5. Cash register according to one of claims 1 to 4, characterized in that the security direction from one on the storage medium brought, read-only memory exists. 6. Procedure for the Controllable Storage of Da at cash registers, characterized by that the data at the cash register with a Le segerät be read into a chip card, whereby the cash register only when the chip card is inserted is functional and the cash register with no or wrong Chip card is disabled and that the last accounting data in a fixed in the Cash register arranged storage can be registered. 7. The method according to claim 4, characterized in net that the booking process by producing the Contact with the chip card begins, then at first the presence of the chip card checked and this Result to an existing one in the registration card Control device is reported when negative Result in the cash register this attempt right registered and blocks the further booking and at positive result the right of use and that before Existing tax credits checked, whereby again if the result is negative, this is registered and the Function is blocked and if the result is positive the booking process released and on the chip card is logged.