FI123468B - Checkout terminal system comprising an RFID reader and a transmitter - Google Patents

Description

CASH TERMINAL SYSTEM INCLUDING RFID READER AND TRANSMITTER

The present invention relates to a point of sale (5 POS) system.

background

European Patent EP 1372097 discloses a cash register system 10 arranged to print advertising information on a receipt.

Summary

It is an object of the present invention to provide a cash register system. It is an object of the present invention to provide a method for operating a cash register terminal system.

According to a first aspect of the invention there is provided a system according to claim 1.

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According to another aspect of the invention there is provided a method according to claim 4.

The cash terminal system 500 may comprise: 25 - a reading device for reading the first information INF1 stored in the first radio frequency identification tag cvj, 5 - a payment unit for confirming a payment related to said first information INF1, - a control unit arranged to send the second information INF2 the £ charge associated with the information INF1 is confirmed, - a transmitter for transmitting the second information to said second RF identification tag, and 5 - a dispenser to said second RF identification tag.

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35 such that said second tag tag is affixed to the article.

2 System 500 may be located, for example, in a store. A number of identical or different products with identification tags may be on sale at a store 100.

The first information INF1 may comprise, for example, identification data, which enables the product to be identified and the price to be associated with the product.

The first information INF1 may also be used in other ways, for example, when calculating multiple products remotely and substantially 10 simultaneously. This can be useful, for example, for in-store inventory or electronic article surveillance (EAS). It may then be advantageous to transmit the first information by far-field communication.

The second information INF2 sent to the sticker is stored in the sticker memory for later reading. The second information, INF2, may be used later to indicate, for example, that the product in question has been sold from a particular store. The other information, INF2, can be used, for example, to prevent a chargeback if a customer attempts to return to 20 stores a product 100 purchased from a different store. Refunds may be denied if a customer attempts to return a product that has not been purchased from an authorized (pre-determined) store.

25 The second information INF2 may be of significant economic value. Thus, recording of the second information INF2 in the second portion 20 may be prevented until the payment associated with the product 100 is actually confirmed.

The first information may be stored on a first label attached to a product, and the second information may be stored on a second label affixed to said product.

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Brief Description of the Drawings

Embodiments of the invention will be described in more detail in the following examples, with reference to the accompanying drawings, in which Figure 1 illustrates a cash register system (POS) and a product positioned near an RFID transmitter of the cash register system; Figure 2 shows subsequent reading of a label affixed to Figure 4 illustrates a method steps for reading first information 15 from a label affixed to a product and storing second information, Figure 5 illustrates a cash register system comprising a ticket dispenser, and Figure 6 illustrates an RFID tag in three-dimensional view.

DETAILED DESCRIPTION 25 Referring to Figure 1, the product 100 may have a Radio Frequency Identification (RFID) tag 50 attached thereto. The tag 50 may include product information ° INF1. In particular, the tag may comprise information INF1 which identifies the product.

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A point of sales (POS) system 500 may comprise your reading device 210 for reading the first information INF1 from the first portion 10 of the radio frequency ™ tag tag. The system 500 may include a g transmitter (220) for transmitting the second information INF2 to the second The first data area may also be referred to as the first data area. The second part 20 may also be referred to as a second data area.

System 500 may comprise a payment unit 300 for confirming payments. System 500 may comprise a control unit 400 for controlling the operation of system 500. System 500 may comprise memory MEM1 for storing, for example, price-5 information. The memory MEM1 may also be an external database.

The cash terminal may comprise a reader 210, a transmitter 220 and a payment unit 300.

A single tag 50 may comprise a first portion 10 and a second portion 20 (see Figure 3). Alternatively, the first portion 10 and the second portion 20 may be located on different flags 50.

Radio frequency tag tags 50 may be attached or attached to articles 100 15 in other ways to identify articles and / or track product movements. The information stored in the tags 50 can be read wirelessly by a portable (mobile) reader 201 or a fixed reader 210.

The radio frequency identification tag 50 comprises a transponder connected to an antenna. The tag 50 may respond to the interrogation signal by sending a response. The response may include first information INF1 indicating, for example, the identification number of the product 100 affixed to the tag 50.

The unobstructed line of sight between the tag 50 and the reading device 210, 600 is not indispensable (the reading device 600 is shown in Figure 2). The orientation of the product 100 relative to the reading device 210, 600 is generally not critical. Multiple products of 100 A can be remotely identified substantially simultaneously.

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The information INF1 stored in the tag 50 can be remotely read by the reading device £ 210. The maximum reading distance between the tag 50 and the reading device 210 can be? For example 5 dots and 3 m depending on the frequency band used and g communication protocol.

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The first information INF1 may comprise, for example, identification data. The identification data may, for example, determine the type of product 100, the batch of said product and / or the unique serial number of said product.

In particular, the information INF1 may comprise an electronic product code (EPC). The unique product code assigned to the product may be stored on the tag 50 as a binary number such as 64 or 96 bits. In particular, the bit string may include product information such as its manufacturer, product type, serial number.

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The first information INF1 may be transmitted by far-field communication, and the second information INF2 may be transmitted by near-field communication (NFC).

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The first information INF1 may be transmitted, for example, according to EPC Gen2, ISO 18000-4, ISO 18000-6 or ISO 18000-7.

The other information INF2 can be transferred, for example, according to ISO 15693 or ISO 14443.

However, the first information INF1 and the second information INF2 may also be transmitted according to the same standard or protocol.

25 cvj Another information INF2 may be associated with significant economic value. Therefore, the storage of the second information INF2 in the second portion 20 may be prevented until the payment associated with the product 100 is actually confirmed.

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System 500 may comprise a control unit 400 configured to allow the transmission of £ second information INF2 only after payment for the product ™ 100 has been confirmed,

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The system may comprise a payment unit 300 for confirming payments. The payment unit 300 may comprise a display 390 for displaying price information on a 6 display as well as a user interface 380 (e.g., a keyboard) for receiving instructions.

Payment can be confirmed in different ways.

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The customer can confirm the payment himself by bringing the payment card 700 close to the card reader 370 or by bringing the payment card 700 into contact with the card reader 370.

10 In certain payment systems, it may also be necessary for the customer to enter a confidential personal identification number (PIN) before confirming a payment.

In certain payment systems, the customer may need to confirm payment by pressing the 15-bar sensor pad with his finger to verify his identity with fingerprint authentication.

When using a payment card 700, the payment confirmation is logged into a database in the cash register system.

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Payment card 700 can be a Money Card, Credit Card or Debit Card. In the case of a money card, the price of the product 100 may pass from the card's internal memory to the store account. That is, the amount stored on the card 700 may be subtracted from the amount corresponding to the first information INF1, and said amount may be added to the register in the cash terminal system 500. cm In the case of a credit card or debit card, payment card 700 may specify a ^ bank account or credit account to be deducted.

Certain payment systems do not require a payment card because otherwise the identity of a customer can be reliably linked to a bank account or a * credit account. For example, the customer can prove his identity and confirm £! payment at the same time as fingerprint authentication or

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g through the interface 380, δ

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35 The seller can visually identify the customer and the seller can confirm payment through interface 380. Typically, the customer is also asked 7 to sign a paper showing the date and the amount paid. However, from a technical point of view, typing a signature on paper is typically legal approval, not a payment confirmation.

According to one embodiment, the second information INF2 may determine the amount of money so that the second portion 20 can then be used as a voucher for, for example, the purchase of other products or services. In this case, the corresponding amount may be deducted from the seller's bank account when the second information INF2 is stored in the second part 20 of the tag 50.

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The payment unit 300 may comprise a card reader 370 for reading information INF3 from the payment card 700. The information INF3 transmitted from the payment card 700 to the payment unit 300 may determine, for example, the identification code associated with the payment card 700.

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As usual, the customer can also give the seller money (banknotes, coins) to make the payment. If the amount of money given to the seller corresponds to the price of the first information INF1, the seller may technically confirm the payment through interface 380, for example, by pressing 20 keys on keyboard 380.

The payment confirmation can be entered into the cash register system database. This reduces the risk that the dishonest seller could steal the money.

With reference to Fig. 2, the second information INF2 (m) stored in the second part 20 can be read (retrieved) at a later stage by a reader 600.

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-A Other information INF2 may determine, for example, that the product w 100 has been sold from a particular store. The other information, INF2, can be used to prevent a refund, for example, if a customer attempts to return a £ 100 product purchased from a different store. The other ™ information in INF2 can be used, for example, for a refund

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g to prevent the thief from trying to return a product stolen from the store and δ trying to recover the price.

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35 8

The second information INF2 may, for example, determine the amount of the payment made.

For example, the second information INF2 may determine the amount to be refunded if the product is returned to the store.

The second information INF2 may, for example, determine the date of the payment confirmation.

The other information INF2 can be used, for example, to determine whether the warranty period has expired. The second information INF2 may comprise, for example, a warranty certificate.

The other information in the INF2 may include an internet link to the product's user guide 15 or a similar internet user support page or online discussion forum. The User's Guide and / or Support / Discussion Forum Page may be related to the country or country of purchase. The second information INF2 may include an internet link to an official importer / dealer. The second information INF2 may include an internet-20 link to a discussion forum in a predetermined language.

The other information INF2 stored on the ticket may justify membership of a club. For example, buying a kitchen appliance can later justify a buyer's membership in a cooking club, which in turn 25 provides access to a recipe library and entitles the buyer to buy supplies at a reduced price, δ

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The other information INF2 may comprise, for example, a password for the client to download and / or use a computer game via the Internet. Second

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The information INF2 may comprise an activation code (password) for activating a £ computer program downloaded from the Internet. The second information INF2 may comprise a ™ password that allows access to the Internet Magazine.

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m o o The second information, INF2, can provide, for example, free access to 35 nightclubs for a limited time after purchasing 100 items.

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The second information INF2 may comprise advertising information. For example, the client's mobile phone or computer may have a reading device 600 such that the client can read at least some of the second information INF2 itself.

The second information INF2 may comprise an electronic receipt.

It is known that a conventional cash register paper printer may be arranged to print a receipt. According to the invention, the paper printer may be replaced by an RFID transmitter 220 or the RFID transmitter 220 may be used in addition to the paper printer 10. The second information INF2 sent to the second portion 20 of the tag 50 may comprise an electronic receipt. Transmitter 220 may be arranged to receive electronic print data and convert the electronic print data into a radio frequency signal comprising the second information INF2.

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In particular, a conventional receipt printer connected to a conventional cash register may be replaced by an RFID transmitter 220 with minimal changes. In particular, the transmitter 220 may communicate with the control unit 400 according to a conventional (paper) receipt printer protocol or standard.

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An RFID tag 50 comprising a second portion 20 may be permanently attached to the product. This minimizes the risk that your receipt will be lost or lost after purchase. In contrast, conventional paper receipts are usually quite large and can easily disappear after purchase. Particularly with a thermal printer, the text of the receipt printed on heat-sensitive paper typically disappears over time.

It is known that a conventional cash register paper printer may be arranged to print a warranty certificate upon purchase of a product. The paper printer ΰ can be replaced with an RFID transmitter 220 to store a warranty certificate

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30 to the second portion 20 of the label 50 in electronic form.

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If the product 100 does not already have a label 50 comprising a second portion 20, a label 50 comprising a second g portion 20 may be obtained from the label dispenser 280 δ (see Figure 5). The ticket dispenser 280 may be connected to an RFID transmitter

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35 220.

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The second information INF2 associated with each product 100 may be unique, i.e. the second information INF2 may be different even when a customer purchases several similar products. Each guarantee certificate should unambiguously relate to only one product 100, especially when the other information INF2 comprises a guarantee certificate.

In another embodiment, the same other information INF2 may be associated with a plurality of products 100. For example, the same advertising information may be stored on a plurality of product tags.

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Referring to Figure 3, a single tag 50 may comprise tag portions 10, 20.

Figure 4 illustrates method steps for storing information on a second portion 20 of a tag 50.

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In step 910, the product 100 can be identified by reading (retrieving) the first information INF1 stored in the first portion 10.

In step 920, the control unit 400 may retrieve the price information corresponding to the first 20 information INF1 from the memory MEM1 of the cash terminal system 500. The memory MEM1 may also be an external database.

At step 930, the price information may be displayed to the user (seller) and / or customer. Price information can also be read aloud.

25 c \ j The customer can accept the price and make the payment. At step 940, the payment is confirmed.

i w In step 950, the control unit can check whether the payment of 30 corresponding to item 100 has been confirmed. The transmission of the second information INF2 may be blocked until the payment corresponding to the first information INF1 is confirmed.

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o o In step 960, the control unit may retrieve another information INF2 from memory ™ 35 MEM1.

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In step 970, the second information INF2 may be transmitted to the second flag portion 20 and stored in the second flag portion 20.

Thereafter, the cash register system 500 may be configured to verify that the second information INF2 is properly stored in section 20. For example, the reader 210 or another cash register system reader may be configured to send a test query signal and receive information INF2 from tag 50 to verify that information INF2 is stored correctly.

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The tag 50 may include an electronic article surveillance (EAS) function to prevent product theft, and in an optional further step 980 the electronic article surveillance (EAS) function may be disabled after payment has been confirmed.

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In an optional further step 990, the first information INF1 stored in the first part 10 may be erased (erased). In other words, the first flag portion 10 can be "" amortized "after purchase.

At a later stage 1010, the second information INF2 stored in the second flag section 20 may be read by the reader 600 (Fig. 2).

The first information INF1 may be stored on a product-related label. After confirming the purchase, the second information INF2 can be stored on the same label.

Alternatively, a first label and a second label may be affixed to the product. The first information INF1 may be stored on the first cc j flag before purchase. One information INF2 may be stored in another

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30 tickets after confirmation of purchase.

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Referring to Figure 5, system 500 may comprise a tag dispenser for delivering 280 g of tags 50 comprising second information o INF2. In this case, the first information INF1 may be stored

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35, and the second information may be stored on the second label, whereby the second label may be affixed to the product after purchase 12. The dispenser may be configured to operate such that printing and / or recording is allowed only after confirmation of purchase.

Referring to Fig. 6, the radio frequency identification tag 50 may comprise a first portion 10 and a second portion 20. The portions 10,20 may be separate or partially overlapping. The first part 10 may also be referred to as the first data area. The second part 20 may also be referred to as a second data area.

The first part 10 may comprise a first transponder 11 connected to the first antenna structure A1, A2. The second portion may comprise a second transponder 21 connected to the second antenna structure CA3.

The transponders 11, 21 may be implemented on the same semiconductor chip 30. The chip 30 15 and the antennas A1, A2, CA3 may be supported on a substrate 40. The substrate 90 may be, for example, paper, cardboard or plastic film.

Alternatively, the first transponder 11 may be implemented on a first semiconductor chip and the second transponder 21 may be implemented on a second semiconductor chip.

SX, SY and SZ mean directions perpendicular to each other.

The reading terminal 210 (pict) of the cash terminal system 500 may be capable of transmitting an inquiry signal 25 in accordance with protocol c1 of the first transponder 11. The first transponder 11 may send a response to the interrogation signal. The response transmitted by the first transponder 11 may comprise -A first information INF1.

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The portable or fixed reader 600 (Fig. 2) may be able to transmit a signal which is the communication protocol £ of the second transponder 21! adequate. The second transponder 21 may send a response to the interrogation signal.

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The response transmitted by the second transponder 21 may comprise the second information δ INF2.

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The transponders 11, 21 of the tag 50 may operate according to different protocols. The first transponder 11 may be connected to a dipole antenna A1, A2. The second transponder 21 may be connected to an inductive antenna CA3. The antenna CA3 may be a coil antenna.

5 The RFID tag may be an active device with a battery to provide power.

The tag 50 may be a passive device operating, for example, on electromagnetic energy transmitted from the readers 210, 10,600. In particular, the combination of the radio frequency unit of the antenna structure A1, A2, CA3 and the transponders 11, 21 may be arranged to provide the transponders 11,21 with power by drawing energy from the incoming electromagnetic signal.

The tag 50 may also be a semi-passive (battery-assisted) tag.

The antennas A1, A2, CA3 may be implemented, for example, by pressing the conductive material onto the substrate 40 or by etching the material locally away from the layer of conductive material. The conductive material may be, for example, copper or aluminum.

The total thickness of the tag 50 (in the SZ direction) may be less than or equal to 1 mm. Label 50 may be flexible. The label 50 may further comprise an adhesive layer (not shown). The label 50 may further comprise a release liner that separates the adhesive layer. The release liner can be removed before the 50 cvj label is applied to the product with 100 adhesive layers, δ

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The label 50 may be affixed to or attached to the product 100. The product may be an item, such as a television, a cell phone, or a part of a car. The product can be a commodity

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30 pack, food pack, medicine pack, chemical pack.

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g The cash register, comprising a reading device 210, a transmitter 220 and a payment unit 300, may be portable (mobile). The portable reader 210 may be exported

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35, so that the distance between the reader and the tag 50 is less than the maximum reading distance. The cash terminal may communicate with the memory MEM1 via a wireless connection (e.g., Bluetooth or cellular network). As a result, the seller is free to walk among potential customers without having to return to a specific location to confirm payment.

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Alternatively, the labeled product may be brought (moved) close to the fixed reading device 210 such that the distance between the reading device and the tag is less than the maximum reading distance.

10 According to one embodiment, the customer can even use the cash register himself.

The second information INF2 may be associated with significant economic value. Thus, the recording of the second information INF2 in the second portion 20 may be prevented until the payment associated with the object 100 is actually confirmed.

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The interrogation signal transmitted by the reader 210, the response containing the first information INF1 and the signal containing the second information INF2 may be transmitted in electromagnetic waves, for example, in the frequency range 100 kHz to 10 GHz.

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According to one embodiment, the first information INF1 may be transmitted according to the far field communication protocol and the second information INF2 may be transmitted according to the near field communication (NFC) protocol.

In particular, the first information INF1 may be transmitted according to one of the following ° standards: c / j ISO / IEC 18000-2A (frequency band 125 / 134.2 kHz, read range, for example, ° 30 up to 2 m) £ ISO / IEC 18000- 2B (125 / 134.2 kHz bandwidth) ISO 18000-3 (frequency band 13.56 MHz, reading distance up to 3 m, for example) g ISO 18000-7 (433 MHz band) o ISO 18000-6A (860-960 MHz band) , for example, reading distance up to 3 m

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35 up to) ISO 18000-6B (Frequency band 860-960 MHz) 15 ISO 18000-6C (Frequency band 860-960 MHz) EPCglobal Class 0 (Frequency band 860-960 MHz) EPCglobal Class 1 (Frequency band 860-960 MHz) EPCglobal Class 1 Gen 2 (frequency band 860-960 MHz) 5 ISO 18000-4 (frequency band 2.45 GHz, reading distance up to 12 m, for example) (Reference is made to the latest versions of the standards in effect as of January 1, 2010). according to the following standard:

Proximity Cards ·. ISO / IEC 14443 (frequency band 13.56 MHz, reading range up to 12.5 cm, for example) 15 Nearby cards: ISO / IEC 15693 (frequency band 13.56 MHz, reading range up to 1.5 m, for example) (Reference is made to the most recent edition of the Standards effective as of 1 January 2010)

The first information INF1 may comprise, for example, identification data, which enables the product to be identified and the product to be combined at a price.

The first information INF1 may also be used in other ways, for example, when calculating a plurality of products remotely and substantially simultaneously. This can be useful, for example, for in-store inventory or electronic article A surveillance (EAS). In this case, it may be advantageous to send the first information via far field communication 30.

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™ However, remote field communication may have a large reading distance and there may be a g risk that false labels will affect reading. If the reader has a plurality of labels at a reading distance, a particular product may be mistakenly associated with a response sent from the wrong label.

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Prior to transmitting the second information INF2, the product in question should be uniquely identified, i.e., it should be ensured that the first information INF1 is read from a sticker associated with that product and that the corresponding second information INF2 is stored only on a sticker associated with said product.

The first information INF1 and the second information INF2 may be stored on the same label associated with the product. Alternatively, the first information INF1 and the second information INF2 may be stored on different labels 10 associated with the same product.

The reading of false labels (related to other products) can be prevented, for example, by limiting the transmitter's transmit power, using a directional (transmitting and / or receiving) antenna, and / or additionally using a radiation-shielding cover. Thus, in the method of the present invention, transmission of second information INF2 from other tags to the reader can be prevented, for example, by limiting transmit power, using directional antennas and / or using radiation-insulating structures. The cash terminal system may comprise means for preventing communication with the wrong tags.

When reading the first information INF1, the maximum reading distance of the first information INF1 may be limited such that the distance between the tag 50 of the first portion 10 and the reader 210 is, for example, less than 0.5 meters, preferably less than 0.2 meters or even less than 0.05 meters.

This ensures that the first information INF1 to be transmitted in response to the interrogation signal A originates from only one tag in the vicinity of the reading device 210;

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£ The maximum reading distance can be determined, for example, by setting the transmitter ™ transmit power, setting the reader sensitivity and / or setting the transmit power of the tag g, δ

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When reading the first information INF1, the maximum read range may be limited, for example, by keeping the level of the interrogation signal transmitted from the reader 17 210 below a predetermined level. Thus, only the tag 50 adjacent to the reader 210 receives a sufficient signal level to initiate the transmission of a response containing the first information INF1.

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The maximum number range can also be limited by specifying a minimum signal level for the response. The reader 201 can accept a response containing the first information INF1 only when the response signal level exceeds a predetermined minimum signal level. Thus, only a tag 50 in the vicinity of the reader 210 10 can provide a sufficiently high signal level. If the distance between the tag and the reader is greater than said maximum reading distance, the low signal level of the response indicates that the distance between the tag and the reader is greater than a predetermined maximum reading distance.

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The reading device 210 may be able to read a plurality of labels substantially simultaneously to identify, for example, all products in a shopping cart. On the other hand, for the purpose of writing the second information INF2 on a label associated with a particular product, the maximum reading distance 20 may be temporarily limited to uniquely identify the label in the vicinity of the reader 210 (product unambiguous identification). In other words, the reader 210 may have two modes of operation. The first method may be to uniquely identify one tag (product). Another approach may be to read multiple products. In the second mode of operation, the reading distance may be substantially longer than in the first mode of operation. In the first mode of operation, for example, the maximum reading distance may be less than 0.5 meters. In the second mode of operation A, for example, the maximum reading distance may be more than 2 meters.

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o 30 The reading sector can also be determined using, for example, directional antennas £. The reader antenna may be sensitive to a signal from a position within the read sector (reading area) and may be g insensitive to a signal from a position outside the read sector δ. For example, the angular width of the reading sector may be less than 70 degrees (when the signal level or sensitivity of the 35 antennas at the sector boundaries is 3 dB lower than the center of the sector).

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For additional assurance, the type of product in question may, for example, be represented on screen 390 as written information and / or graphic information. For example, if the charge is related to a microwave oven, the display may show the text "MIK-5 OVEN" and / or a graphic image of the microwave oven. This allows the seller and / or customer to visually check that the payment is made for the correct product.

If very high reliability is required, the identification of a particular product may also be supplemented, for example, by reading the optical barcode 10 associated with the product and / or reading an identification word or number affixed to said product and typing said word or number into the cash register system. information INF1.

It will be apparent to one skilled in the art that modifications and variations of the devices and methods of the present invention are possible. The drawings are schematic. The specific embodiments described above with reference to the accompanying drawings are illustrative only and are not intended to limit the scope of the invention as defined in the appended claims.

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Claims (10)

1. Cash register system (500) comprising - a reader (210) for reading first information (INF1) stored on a first radio frequency identification tag (50), - a payment unit (300) for confirming a payment relating to said first information (INF1), - a controller (400) arranged to allow transmission of second information (INF2) after a payment relating to said first information 10 (INF1) has been confirmed, and - a transmitter (220) to transmitting the second information (INF2) to said second radio frequency identification tag (50), characterized in that the cassette terminal system also includes a dispenser (280) for supplying said second radio frequency identification tag (50) in such a way that said second identification tag (50) can be attached to a product. The system (500) of claim 1, comprising means (210) for removing the first information (INF1) stored in the first identification tag (50). 20 The system (500) of claim 1 or 2, wherein said reader (210) is arranged to communicate according to the remote field communication protocol (ISO 18000-6), and said transmitter (220) is arranged to communicate according to the near-field communication protocol (ISO 15693) . 25 cm A method of using a cash register system (500), wherein said cash register system (500) comprises a reader, a payment unit (300), -A a controller (400), and a transmitter (220), wherein said method: c j - Reading first information (INF1) with said reader (210), which information is stored on a first radio frequency identification tag (50), £ - confirming a payment relating to said first information ™ (INF1) with said payment unit (300), g - allows transmission of other information (INF2) with said controller δ (400) after payment is confirmed, and 35. Sends the second information (INF2) to a second radio frequency identification tag (50) with said transmitter (220). characterized in that said other radio frequency identification tag is affixed or attached to a product (100). The method of claim 4, wherein said second tag (50) for storing said second information (INF2) is affixed to said product (100) even before the confirmation of payment. Method according to claim 4, in which the tag (50) is supplied with a dispenser (100) for tags after the confirmation of payment. 10 The method of claim 6, wherein said second tag (50) is supplied with a dispenser (280) for tags after the confirmation of payment. A method according to any one of claims 4-7, wherein said first information (INF1) is read according to the remote field communication protocol (ISO 18000-6) and said second information (INF2) is transmitted according to the near field communication protocol (ISO 15693). The method of claim 8, wherein the reading distance for reading the first information (INF1) with the reader (210) is limited to a maximum below 0.5 meters, preferably below 0.2 meters. A method according to any of claims 4-9, comprising removing the first information (INF1) stored in the first radio frequency identification tag (50). CM δ CM i CM O X cc CL CM δ m o δ CM