IC card data acquisition circuit

Abstract

The utility model discloses an IC card data acquisition circuit, which comprises a main control circuit, an IC card identification circuit, an indication circuit and a Bluetooth circuit, wherein the IC card identification circuit, the indication circuit and the Bluetooth circuit are all connected with the main control circuit; the IC card identification circuit is used for reading information of an IC card and transmitting the read information of the IC card to the main control circuit, the main control circuit is connected with a mobile device through the Bluetooth circuit, and the information of the IC card is displayed through the mobile device. According to the utility model, the main control circuit, the IC card identification circuit, the indication circuit and the Bluetooth circuit are arranged; after the IC card identification circuit identifies the IC card information, the IC card information is sent to the main control circuit, the main control circuit transmits the IC card information to the mobile device through the Bluetooth circuit, and the IC card information is displayed through the mobile device, so that the IC card reading circuit is simplified, and the IC card identification becomes more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of data acquisition, in particular to an IC card data acquisition circuit. Background Art

[0002] IC card (Integrated Circuit Card) has the ability to write and store data and is widely used in finance, transportation, medical treatment, identity verification and other industries, improving the modernization of people's work and life. The data in the IC card needs to be read by a corresponding card reader.

[0003] In the prior art, for example, the technical solution described in the patent with application number: CN202023269362.0: an IC card reader circuit, which implements the IC card reader circuit through a single-chip circuit, a power supply circuit, a software burning port circuit, an output port circuit, an input port circuit and a controller circuit. In addition, the controller circuit and the single-chip circuit are connected by communication to control the output port, the card learning button, the indicator light and the input port.

[0004] In the prior art, after the IC card reader circuit reads the card, an additional integrated display module is required to display the information in the IC card, which makes the overall IC card reader circuit more complicated and requires more hardware modules for support. Utility Model Content

[0005] The utility model aims to provide an IC card data acquisition circuit to solve the problem that in the prior art proposed in the background technology, an additional integrated display module is required to display the information in the IC card, resulting in a more complicated overall IC card reader circuit.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An IC card data acquisition circuit comprises a main control circuit, an IC card identification circuit, an indication circuit and a Bluetooth circuit; wherein the IC card identification circuit, the indication circuit and the Bluetooth circuit are all connected to the main control circuit; the IC card identification circuit is used to read IC card information and transmit the read IC card information to the main control circuit; the main control circuit is connected to a mobile device via the Bluetooth circuit, and the IC card information is displayed via the mobile device.

[0008] According to the above technical solution, the IC card identification circuit includes a chip U5, a chip U2, a resistor VR1, a resistor VR2, a resistor VR3, a resistor VR4, a resistor VR5, a diode D2, a diode D5, a diode D6, a diode D9 and a capacitor C5;

[0009] One end of the resistor VR1 is connected to the pin 7 of the chip U5, and the other end of the resistor VR1 is connected to the diode D2 and the main control circuit respectively; the other end of the diode D2 is grounded;

[0010] One end of the resistor VR2 is connected to the pin 2 of the chip U5; the other end of the resistor VR2 is respectively connected to the diode D5, one end of the capacitor C5 and the pin 7 of the chip U2; the other end of the diode D5 is connected to the other end of the capacitor C5, and the other ends of the diode D5 and the capacitor C5 are both grounded;

[0011] One end of the diode D7 is connected to one end of the resistor VR3 and the main control circuit respectively; the other end of the diode D7 is grounded; the other end of the resistor VR3 is connected to pin 3;

[0012] One end of the diode D6 is connected to one end of the resistor VR4 and the main control circuit respectively, and the other end of the diode D6 is grounded; the other end of the resistor VR4 is connected to the No. 10 pin of the chip U5;

[0013] One end of the diode D9 is connected to one end of the resistor VR5 and the pin 8 of the chip U2 respectively, and the other end of the resistor VR5 is connected to the pin 1 of the chip U5; the pins 5 and 9 of the chip U5 are grounded.

[0014] According to the above technical solution, the resistors VR1, VR2, VR3, VR4 and VR5 are all variable resistors.

[0015] According to the above technical solution, two ends of the indication circuit are respectively connected to the IC card identification circuit and the main control circuit; the indication circuit includes a first indication circuit and a second indication circuit.

[0016] According to the above technical solution, the first indication circuit includes a diode D11 and a resistor R13, one end of the diode D11 is connected to pin 8 of the chip U2, the other end of the diode D11 is connected to one end of the resistor R13, and the other end of the resistor R13 is connected to the main control circuit.

[0017] According to the above technical solution, the second indicating circuit includes a diode D12, a resistor R14, a resistor R17 and a transistor Q5;

[0018] One end of resistor R14 is connected to one end of diode D12, the other end of resistor R14 is connected to pin 8 of chip U2, the other end of diode D12 is connected to the emitter of transistor Q5, the collector of transistor Q5 is grounded, the base of transistor Q5 is connected to one end of resistor R17, and the other end of resistor R17 is connected to the main control circuit.

[0019] According to the above technical solution, the Bluetooth circuit includes a chip U6, a crystal oscillator B1, a capacitor C2, a capacitor C3, a capacitor C19, a resistor R11 and a transistor Q9;

[0020] Pin 1 of chip U6 is connected to one end of capacitor C19 and a power source respectively; the other end of capacitor C19 is connected to pin 3 of chip U6, and the other end of capacitor C19 and pin 3 of chip U6 are both grounded;

[0021] Pin 4 of chip U6 is connected to one end of capacitor C3, and the other end of capacitor C3 is connected to the wireless interface;

[0022] Pins 7 and 8 of chip U6 are both connected to the control chip; pins 5 and 6 of chip U6 are respectively connected to the two ends of crystal oscillator B1.

[0023] The base of transistor Q9 is connected to resistor R11, and the other end of resistor R11 is connected to the control chip; the emitter of transistor Q9 is connected to the power supply; the collector of transistor Q9 is connected to one end of capacitor C2, and the other end of capacitor C2 is grounded; the collector of transistor Q9 and capacitor C2 are both connected to the power supply.

[0024] According to the above technical solution, a reset circuit is also included: the reset circuit includes a reset switch SW1, and pin 1 of the reset switch SW1 is connected to the main control circuit; pin 2 and pin 3 of the reset switch SW1 are grounded.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] In the utility model, a main control circuit, an IC card recognition circuit, an indication circuit and a Bluetooth circuit are used; after the IC card recognition circuit recognizes the IC card information, the IC card information is sent to the main control circuit, and the main control circuit transmits the IC card information to the mobile device through the Bluetooth circuit, and the IC card information is displayed through the mobile device, thereby simplifying the IC card reader circuit and making IC card recognition more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is the IC card data acquisition circuit diagram of the utility model;

[0028] Figure 2 This is the voltage stabilizing circuit diagram of the utility model;

[0029] Figure 3 This is the indication circuit diagram of the utility model;

[0030] Figure 4 This is a circuit diagram of chip U5 of the utility model;

[0031] Figure 5This is a schematic diagram of the main control circuit of the utility model;

[0032] Figure 6 This is a circuit diagram of chip U2 of the utility model;

[0033] Figure 7 This is the Bluetooth circuit diagram of the utility model;

[0034] Figure 8 This is a reset circuit of the utility model. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Embodiment 1

[0037] like Figures 1 to 8 As shown, an IC card data acquisition circuit includes a main control circuit, an IC card identification circuit, an indication circuit and a Bluetooth circuit; wherein the IC card identification circuit, the indication circuit and the Bluetooth circuit are all connected to the main control circuit; the IC card identification circuit is used to read the IC card information and transmit the read IC card information to the main control circuit, the main control circuit is connected to the mobile device via the Bluetooth circuit, and the IC card information is displayed via the mobile device.

[0038] In the utility model, a main control circuit, an IC card recognition circuit, an indication circuit and a Bluetooth circuit are used; after the IC card recognition circuit recognizes the IC card information, the IC card information is sent to the main control circuit, and the main control circuit transmits the IC card information to the mobile device through the Bluetooth circuit, and the IC card information is displayed through the mobile device, thereby simplifying the IC card reader circuit and making IC card recognition more convenient.

[0039] Embodiment 2

[0040] This embodiment is a further refinement of the first embodiment.

[0041] like Figure 1 , Figure 4 as well as Figure 6 As shown; the IC card identification circuit includes a chip U5, a chip U2, a resistor VR1, a resistor VR2, a resistor VR3, a resistor VR4, a resistor VR5, a diode D2, a diode D5, a diode D6, a diode D9 and a capacitor C5;

[0042] One end of the resistor VR1 is connected to the pin 7 of the chip U5, and the other end of the resistor VR1 is connected to the diode D2 and the pin 37 of the main control circuit (such as Figure 5 The other end of the diode D2 is grounded;

[0043] One end of the resistor VR2 is connected to the pin 2 of the chip U5; the other end of the resistor VR2 is respectively connected to the diode D5, one end of the capacitor C5 and the pin 7 of the chip U2; the other end of the diode D5 is connected to the other end of the capacitor C5, and the other ends of the diode D5 and the capacitor C5 are both grounded;

[0044] One end of the diode D7 is connected to one end of the resistor VR3 and the 39th pin of the main control circuit (such as Figure 5 The other end of the diode D7 is connected to the ground; the other end of the resistor VR3 is connected to the pin 3;

[0045] One end of the diode D6 is connected to one end of the resistor VR4 and the pin 14 of the circuit (such as Figure 5 The other end of the diode D6 is connected to the ground; the other end of the resistor VR4 is connected to the pin 10 of the chip U5;

[0046] One end of the diode D9 is connected to one end of the resistor VR5 and the pin 8 of the chip U2 respectively, and the other end of the resistor VR5 is connected to the pin 1 of the chip U5; the pins 5 and 9 of the chip U5 are grounded.

[0047] The resistor VR1, the resistor VR2, the resistor VR3, the resistor VR4 and the resistor VR5 are all variable resistors.

[0048] like Figure 3 As shown, two ends of the indication circuit are respectively connected to the IC card identification circuit and the main control circuit; the indication circuit includes a first indication circuit and a second indication circuit.

[0049] The first indication circuit includes a diode D11 and a resistor R13. One end of the diode D11 is connected to the pin 8 of the chip U2, the other end of the diode D11 is connected to one end of the resistor R13, and the other end of the resistor R13 is connected to the pin 14 of the main control circuit (such as Figure 5 as shown) connection.

[0050] The second indicating circuit includes a diode D12, a resistor R14, a resistor R17 and a transistor Q5;

[0051] One end of the resistor R14 is connected to one end of the diode D12, the other end of the resistor R14 is connected to the 8th pin of the chip U2, the other end of the diode D12 is connected to the emitter of the transistor Q5, the collector of the transistor Q5 is grounded, the base of the transistor Q5 is connected to one end of the resistor R17, the other end of the resistor R17 is connected to the 38th pin of the main control circuit (such as Figure 5 as shown) connection.

[0052] like Figure 7 As shown, the Bluetooth circuit includes a chip U6, a crystal oscillator B1, a capacitor C2, a capacitor C3, a capacitor C19, a resistor R11 and a transistor Q9;

[0053] Pin 1 of chip U6 is connected to one end of capacitor C19 and a power source respectively; the other end of capacitor C19 is connected to pin 3 of chip U6, and the other end of capacitor C19 and pin 3 of chip U6 are both grounded;

[0054] Pin 4 of chip U6 is connected to one end of capacitor C3, and the other end of capacitor C3 is connected to the wireless interface;

[0055] Pins 7 and 8 of chip U6 are both connected to the control chip; pins 5 and 6 of chip U6 are respectively connected to the two ends of crystal oscillator B1.

[0056] The base of transistor Q9 is connected to resistor R11, and the other end of resistor R11 is connected to the control chip; the emitter of transistor Q9 is connected to the power supply; the collector of transistor Q9 is connected to one end of capacitor C2, and the other end of capacitor C2 is grounded; the collector of transistor Q9 and capacitor C2 are both connected to the power supply.

[0057] like Figure 8 As shown, a reset circuit is also included: the reset circuit includes a reset switch SW1, and the pin 1 of the reset switch SW1 is connected to the pin 7 of the main control circuit (such as Figure 5 Pin 2 and pin 3 of the reset switch SW1 are grounded.

[0058] It also includes voltage stabilization circuits, such as Figure 2 As shown, the voltage stabilizing circuit includes a first voltage stabilizing circuit and a second voltage stabilizing circuit; wherein the first voltage stabilizing circuit includes a capacitor C10, a resistor R4, a resistor R5, and a transistor Q3;

[0059] One end of the resistor R5 is connected to the No. 7 pin of the chip U2 of the main control circuit and the collector of the transistor Q3; the other end of the resistor R5 is connected to one end of the capacitor C10 and the No. 8 pin of the chip U2; the other end of the capacitor C10 is grounded;

[0060] The emitter of transistor Q3 is grounded; the base of transistor Q3 is connected to one end of resistor R4, and the other end of resistor R4 is connected to pin 15 of the main control circuit (such as Figure 5 as shown) connection;

[0061] The second voltage stabilizing circuit includes a capacitor C9, a resistor R3, and a transistor Q1; one end of the resistor R3 is connected to the pin 23 of the main control circuit (such as Figure 5 The other end of the resistor R3 is connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to the power supply, the collector of the transistor Q1 is connected to one end of the capacitor C9 and the pin 8 of the chip U2 respectively; the other end of the capacitor C9 is grounded.

[0062] The working principle of the utility model is as follows: the circuit is a new type of IC card data acquisition circuit, including an IC card identification circuit, a main control circuit, a Bluetooth circuit, a voltage stabilizing circuit and a reset circuit. The voltage stabilizing circuit provides a stable DC power supply, the manual reset circuit prevents the main control program from being disordered and unable to recover by itself, and adopts manual reset to ensure the normal operation of the whole. The Bluetooth circuit enables the circuit to be paired with a mobile phone Bluetooth, and the mobile phone can be used on site to perform IC card reading and writing operations, and the main control circuit controls the overall IC card reading and writing process, and transmits the entire operation process and the read and written data information to the background management system.

[0063] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An IC card data acquisition circuit, characterized in that: It includes a main control circuit, an IC card identification circuit, an indication circuit and a Bluetooth circuit; wherein the IC card identification circuit, the indication circuit and the Bluetooth circuit are all connected to the main control circuit; the IC card identification circuit is used to read the IC card information and transmit the read IC card information to the main control circuit, the main control circuit is connected to the mobile device via the Bluetooth circuit, and the IC card information is displayed via the mobile device.

2. The IC card data acquisition circuit according to claim 1, characterized in that: The IC card identification circuit includes a chip U5, a chip U2, a resistor VR1, a resistor VR2, a resistor VR3, a resistor VR4, a resistor VR5, a diode D2, a diode D5, a diode D6, a diode D9 and a capacitor C5; One end of the resistor VR1 is connected to the pin 7 of the chip U5, and the other end of the resistor VR1 is connected to the diode D2 and the main control circuit respectively; the other end of the diode D2 is grounded; One end of the resistor VR2 is connected to the pin 2 of the chip U5; the other end of the resistor VR2 is respectively connected to the diode D5, one end of the capacitor C5 and the pin 7 of the chip U2; the other end of the diode D5 is connected to the other end of the capacitor C5, and the other ends of the diode D5 and the capacitor C5 are both grounded; One end of the diode D7 is connected to one end of the resistor VR3 and the main control circuit respectively; the other end of the diode D7 is grounded; the other end of the resistor VR3 is connected to pin 3; One end of the diode D6 is connected to one end of the resistor VR4 and the main control circuit respectively, and the other end of the diode D6 is grounded; the other end of the resistor VR4 is connected to the No. 10 pin of the chip U5; One end of the diode D9 is connected to one end of the resistor VR5 and the pin 8 of the chip U2 respectively, and the other end of the resistor VR5 is connected to the pin 1 of the chip U5; the pins 5 and 9 of the chip U5 are grounded.

3. An IC card data acquisition circuit according to claim 2, characterized in that: The resistor VR1, the resistor VR2, the resistor VR3, the resistor VR4 and the resistor VR5 are all variable resistors.

4. The IC card data acquisition circuit according to claim 1, characterized in that: The two ends of the indication circuit are respectively connected to the IC card identification circuit and the main control circuit; the indication circuit comprises a first indication circuit and a second indication circuit.

5. An IC card data acquisition circuit according to claim 4, characterized in that: The first indication circuit includes a diode D11 and a resistor R13. One end of the diode D11 is connected to pin 8 of the chip U2. The other end of the diode D11 is connected to one end of the resistor R13. The other end of the resistor R13 is connected to the main control circuit.

6. The IC card data acquisition circuit according to claim 4, characterized in that: The second indicating circuit includes a diode D12, a resistor R14, a resistor R17 and a transistor Q5; One end of resistor R14 is connected to one end of diode D12, the other end of resistor R14 is connected to pin 8 of chip U2, the other end of diode D12 is connected to the emitter of transistor Q5, the collector of transistor Q5 is grounded, the base of transistor Q5 is connected to one end of resistor R17, and the other end of resistor R17 is connected to the main control circuit.

7. The IC card data acquisition circuit according to claim 1, characterized in that: The Bluetooth circuit includes chip U6, crystal oscillator B1, capacitor C2, capacitor C3, capacitor C19, resistor R11 and transistor Q9; Pin 1 of chip U6 is connected to one end of capacitor C19 and a power source respectively; the other end of capacitor C19 is connected to pin 3 of chip U6, and the other end of capacitor C19 and pin 3 of chip U6 are both grounded; Pin 4 of chip U6 is connected to one end of capacitor C3, and the other end of capacitor C3 is connected to the wireless interface; Pins 7 and 8 of chip U6 are connected to the control chip; pins 5 and 6 of chip U6 are connected to the two ends of crystal oscillator B1 respectively; The base of transistor Q9 is connected to resistor R11, and the other end of resistor R11 is connected to the control chip; the emitter of transistor Q9 is connected to the power supply; the collector of transistor Q9 is connected to one end of capacitor C2, and the other end of capacitor C2 is grounded; the collector of transistor Q9 and capacitor C2 are both connected to the power supply.

8. The IC card data acquisition circuit according to claim 1, characterized in that: It also includes a reset circuit: the reset circuit includes a reset switch SW1, and pin 1 of the reset switch SW1 is connected to the main control circuit; pin 2 and pin 3 of the reset switch SW1 are grounded.

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