CN205068456U - Three blocks of a finance read write line - Google Patents

Abstract

The utility model discloses a financial three-in-one reader-writer, which comprises a central controller, a power management unit, a reset circuit, a communication interface, a non-contact IC card, a contact IC card and a magnetic stripe card, and a power supply for the power management circuit. The output end is connected with the power input end of the central controller, and the central controller is respectively connected with the communication interface, non-contact IC card, contact IC card and magnetic stripe card, and the signal output end of the reset circuit is connected with the reset end of the central controller. connect. The utility model provides a single central controller which simultaneously supports the reading and writing of three modes of magnetic stripe card, contact IC card and non-contact IC card, and can read and write the magnetic stripe card and contact IC card through the central controller. Send commands with contactless IC cards to switch and identify card types by themselves, and comply with the EMV issued by the International Banking Organization? L1 certification standard; the utility model has the advantages of simple structure, stable performance and long service life.

Description

A financial three-in-one reader

technical field

The utility model relates to the technical field of reader-writers, in particular to a financial three-card-in-one reader-writer.

Background technique

Most of the existing POS machines, ATM machines, and self-service inquiry terminal equipment only support magnetic stripe cards or IC cards, but there are more and more types of cards at this stage, most of which are magnetic stripe cards and contact IC cards. Cards and non-contact IC cards, but at the current stage, a single CPU is used to control a card reader type on financial terminals. Three types of cards require three CPUs to process, which causes waste of hardware resources and complicates product development during technology development.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a three-in-one financial card reader.

The technical scheme of the utility model is as follows: the utility model provides a financial three-in-one reader, including a central controller, a power management unit, a reset circuit, a communication interface, a non-contact IC card, a contact IC card and a magnetic bar card, the power output end of the power management circuit is connected to the power input end of the central controller, and the central controller is respectively connected to the communication interface, the non-contact IC card, and the contact IC card It is communicatively connected with the magnetic stripe card, and the signal output terminal of the reset circuit is connected with the reset terminal of the central controller.

Preferably in the present invention, the non-contact IC card includes a reader chip and an NFC antenna, the reader chip is communicatively connected to the central controller, and the reader chip is communicatively connected to the NFC antenna.

Preferably in the present invention, the contact IC card includes a single-chip microcomputer, and the single-chip microcomputer is connected to the central controller by communication.

Preferably in the present invention, the magnetic stripe card includes a magnetic head decoding chip, and the magnetic head decoding chip is communicatively connected with the central controller.

Preferably in the present invention, the model of the reader chip is AS3911.

Preferably in the utility model, the model of the single-chip microcomputer is DS8113-JNG+.

Preferably in the present invention, the model of the magnetic head decoding chip is PA1100.

Preferably in the present invention, the model of the central controller is STM32F103CBT6.

The beneficial effects of the utility model are as follows:

Adopting the above-mentioned scheme, the utility model provides a kind of reading and writing that supports three modes of magnetic stripe card, contact IC card and non-contact IC card on the basis of a single central controller at the same time, through the central controller to read and write the magnetic stripe card, The contact IC card and non-contact IC card send commands to switch and identify card types automatically, and conform to the EMVL1 certification standard issued by the International Banking Organization; the utility model has the advantages of simple structure, stable performance and long service life.

Description of drawings

Fig. 1 is a schematic diagram of the system structure of the financial three-in-one reader of the utility model;

Fig. 2 is the circuit diagram of central controller in the utility model;

Fig. 3 is the circuit diagram of magnetic stripe card in the utility model;

Fig. 4 is the circuit diagram of non-contact IC card in the utility model;

Fig. 5 is the circuit diagram of the contact IC card in the utility model.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.

Please refer to Figure 1, the utility model provides a financial three-in-one reader, including a central controller U3, a power management unit, a reset circuit, a communication interface, a non-contact IC card, a contact IC card and a magnetic stripe card , the power output end of the power management circuit is connected with the power input end of the central controller U3, and the central controller U3 is respectively connected with the communication interface, non-contact IC card, contact IC card and magnetic stripe card, and the signal output of the reset circuit The end is connected with the reset end of the central controller U3, and the model of the central controller U3 is STM32F103CBT6.

As shown in Figure 2 and Figure 4, the non-contact IC card includes a reader chip U5 and an NFC antenna J1, the reader chip U5 communicates with the central controller U3, the reader chip U5 communicates with the NFC antenna J1, and the reader chip The model of U5 is AS3911.

As shown in Fig. 2 and Fig. 5, the contact IC card includes a single-chip microcomputer U2, and the single-chip microcomputer U2 communicates with the central controller U3. The model of the single-chip microcomputer U2 is DS8113-JNG+.

As shown in Fig. 2 and Fig. 3, the magnetic stripe card includes a magnetic head decoding chip U1, and the magnetic head decoding chip U1 communicates with the central controller U3. The model of the magnetic head decoding chip U1 is PA1100.

The working principle of the utility model is as follows:

As shown in Figure 2 and Figure 3, the central processing unit U3 communicates with the magnetic stripe card so that the card reader supports the magnetic stripe card. The magnetic stripe card selects the magnetic head decoding chip U1 for communication. The VCOM end, A end, and The B terminal and the C terminal are sequentially connected with the MSR_COM terminal, the MSR_A terminal, the MSR_B terminal and the MSR_C terminal of the central processing unit U3 to realize communication.

As shown in Figure 2 and Figure 5, the central processing unit U3 communicates with the contact IC card so that the card reader supports the contact IC card, and the contact IC card selects the single-chip microcomputer U2 for communication, and the CLKDIV1 terminal and the PRES terminal of the single-chip microcomputer U2 communicate with each other in turn The Card_3v5v terminal of the central processing unit U3 is connected to the ICCARD_PRES terminal, and the AUX2 terminal, AUX1 terminal, I/OUC terminal, XTAL1 terminal, OFF terminal, RSTIN terminal, CMDVCC terminal and PORADJ terminal of the single-chip microcomputer U2 are connected in series with the central processing unit U3 The ICCARD_AUX2 terminal, ICCARD_AUX1 terminal, Card_IO terminal, Card_CLK terminal, Card_OFF terminal, Card_RST terminal, Card_CMD terminal and Card_PS terminal are connected to realize communication.

As shown in Fig. 2 and Fig. 4, the central processing unit U3 communicates with the reader chip U5, and the reader chip U5 communicates with the NFC antenna J1, so that the card reader supports non-contact IC cards. The BSS end of the reader chip U5, The MISO terminal, MOSI terminal, SCLK terminal, IPQ terminal and MCU_CLK terminal are connected in series with the RF_EN terminal, MISO terminal, MOSI terminal, SCLK terminal, RF_INT terminal and RF_MCUCLK terminal of the central processing unit U3, and the VSS terminal of the reader chip , GND_A terminal, GND_D terminal, GND_RF terminal and GND terminal are all connected to the GNDHF terminal of the central processing unit U3 to realize communication, and the RFI1 terminal RFI2 terminal of the reader chip is respectively connected to the first terminal and the second terminal of the NFC antenna J1.

In summary, with the above scheme, the utility model provides a single central controller that simultaneously supports the reading and writing of the three modes of magnetic stripe card, contact IC card and non-contact IC card, through the central controller Send commands to magnetic stripe cards, contact IC cards and non-contact IC cards to automatically switch and identify card types, and comply with the EMVL1 certification standard issued by the International Banking Organization; the utility model has the advantages of simple structure, stable performance and long service life. advantage.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (8)

1. A financial three-in-one reader, characterized in that it includes a central controller, a power management unit, a reset circuit, a communication interface, a non-contact IC card, a contact IC card and a magnetic stripe card, and the power supply The power output end of the management circuit is connected to the power input end of the central controller, and the central controller is respectively connected to the communication interface, the non-contact IC card, the contact IC card and the magnetic stripe card Communication connection, the signal output terminal of the reset circuit is connected with the reset terminal of the central controller. 2. The financial three-in-one reader according to claim 1, wherein the non-contact IC card includes a reader chip and an NFC antenna, and the reader chip is communicatively connected to the central controller , the reader chip is communicatively connected to the NFC antenna. 3. The financial three-in-one reader-writer according to claim 2, characterized in that, the contact IC card includes a single-chip microcomputer, and the single-chip microcomputer is communicatively connected with the central controller. 4 . The three-in-one financial card reader according to claim 3 , wherein the magnetic stripe card includes a magnetic head decoding chip, and the magnetic head decoding chip is communicatively connected to the central controller. 5. The financial three-in-one reader-writer according to claim 2, characterized in that the model of the reader chip is AS3911. 6. The three-in-one financial card reader according to claim 3, wherein the model of the single-chip microcomputer is DS8113-JNG+. 7. The three-in-one financial card reader according to claim 4, characterized in that the model of the magnetic head decoding chip is PA1100. 8. The three-in-one financial card reader according to claim 1, wherein the model of the central controller is STM32F103CBT6.