Card swiping data processing device and method

Abstract

The invention relates to the technical field of magnetic stripe card signal processing, and discloses a card swiping data processing device and method.The processing device comprises a magnetic signal induction module used for generating a magnetic card interaction signal when a card swiping action occurs, and an ADC collection module used for collecting the magnetic card interaction signal to generate a digital signal; the processing control module is used for obtaining the digital signal and decoding the digital signal to obtain magnetic card storage information; the magnetic card sensing module is used for generating a motion trigger signal when a card swiping action occurs, the processing control module is used for calculating a card swiping rate based on the motion trigger signal and generating a voltage regulation control signal according to the card swiping rate, and the voltage regulation module is used for regulating a reference voltage to the magnetic signal sensing module according to the voltage regulation control signal. Therefore, the magnetic card interaction signal is in the acquisition range of the ADC acquisition module. According to the invention, the magnetic card interaction signal can be always in the acquisition range of the ADC acquisition module, so that different card swiping speeds can be adapted, and the stability of data acquisition is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic stripe card signal processing, and in particular to a card swiping data processing device and method. Background Art

[0002] With the continuous development of information technology, magnetic cards, as a common information storage and transmission medium, have been widely used in finance, transportation, access control and other fields. However, in the use of magnetic cards, due to the uncertainty of card swiping speed and the weakness of magnetic signals, it often leads to inaccurate data collection and decoding failure, which affects the use effect and reliability of magnetic cards.

[0003] The above information is presented as background information only to assist with understanding the present disclosure and no determination or admission is made as to whether any of the above may be used as prior art with respect to the present disclosure. Summary of the invention

[0004] The present invention provides a card swiping data processing device and method to solve the problems existing in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A card swiping data processing device comprises a magnetic signal sensing module, an ADC acquisition module and a processing control module, wherein the magnetic signal sensing module is used to generate a magnetic card interaction signal when a card swiping action occurs, the ADC acquisition module is used to collect the magnetic card interaction signal to generate a digital signal; the processing control module is used to obtain the digital signal and decode it to obtain the magnetic card storage information;

[0007] The card swiping data processing device also includes a magnetic card sensing module and a voltage regulating module; the magnetic card sensing module is used to generate a motion trigger signal when a card swiping action occurs, the processing control module is used to calculate the card swiping rate based on the motion trigger signal, and generate a voltage regulating control signal according to the card swiping rate, and the voltage regulating module is used to adjust the reference voltage to the magnetic signal sensing module according to the voltage regulating control signal so that the magnetic card interaction signal is within the acquisition range of the ADC acquisition module.

[0008] Optionally, the magnetic card sensing module is a Hall sensor, and the magnetic card sensing module is used to be triggered when a card swiping action occurs and send a pulse to the processing control module.

[0009] Optionally, the processing control module calculates the card swiping rate according to the following formula:

[0010]

[0011] in is the card swiping rate, is the pulse quantity t sent by the processing control module of the magnetic card sensing module, is the reference maximum voltage of the ADC acquisition module, and n is the ADC sampling accuracy.

[0012] Optionally, the processing control module is used to generate a voltage regulation control signal based on the negative correlation between the card swiping rate and the induced electromotive force of the magnetic signal sensing module.

[0013] Optionally, the magnetic signal sensing module includes a magnetic head sensor, and the magnetic head sensor is used to obtain a magnetic track signal generated by a magnetic card cutting magnetic field;

[0014] The magnetic signal sensing module also includes an operational amplifier module, which is used to amplify the input voltage signal of the magnetic head sensor to adjust the induced electromotive force of the magnetic head sensor; and is used to amplify the magnetic track signal output by the magnetic signal sensing module to form a magnetic card interaction signal.

[0015] Optionally, the magnetic card sensing module is further used to generate a power supply signal when identifying that a card is inserted, and the power supply signal is used to open a power supply path to the magnetic signal sensing module.

[0016] The present invention also provides a card swiping data processing method, which is implemented based on the card swiping data processing device as described in any one of the above items. When a card swiping action occurs, the card swiping data processing method includes: generating a magnetic card interaction signal, collecting the magnetic card interaction signal and generating a digital signal, and obtaining the magnetic card storage information based on the digital signal decoding;

[0017] When a card swiping action occurs, the card swiping data processing method also includes: generating a motion trigger signal; calculating the card swiping rate based on the motion trigger signal, and generating a voltage regulation control signal according to the card swiping rate; and adjusting the induced electromotive force of the magnetic signal sensing module according to the voltage regulation control signal so that the magnetic card interaction signal is within the effective collection range.

[0018] Optionally, the processing control module calculates the card swiping rate according to the following formula:

[0019]

[0020] in is the card swiping rate, is the pulse quantity t sent by the processing control module of the magnetic card sensing module, is the reference maximum voltage of the ADC acquisition module, and n is the ADC sampling accuracy.

[0021] Optionally, the processing control module is used to generate a voltage regulation control signal based on the negative correlation between the card swiping rate and the induced electromotive force of the magnetic signal sensing module.

[0022] Optionally, the magnetic signal sensing module is configured to include a magnetic head sensor and an operational amplifier module, wherein the magnetic head sensor is configured to obtain a magnetic track signal generated by a magnetic card cutting magnetic field; the operational amplifier module is configured to amplify an input voltage signal input to the magnetic head sensor to adjust the induced electromotive force of the magnetic head sensor; and is configured to amplify the magnetic track signal output by the magnetic signal sensing module to form a magnetic card interaction signal;

[0023] The magnetic card sensing module is configured to generate a power supply signal when a card is identified to be inserted, and the power supply signal is used to open a power supply path to the magnetic signal sensing module.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a card swiping data processing device and method, which generates a motion trigger signal when swiping a card, calculates the card swiping rate based on the signal, and generates a voltage regulation control signal according to the card swiping rate. Based on this, the reference voltage to the magnetic signal sensing module is adjusted to make the magnetic card interaction signal always within the acquisition range of the ADC acquisition module, thereby being able to adapt to different card swiping speeds and ensuring the stability of data acquisition.

[0026] The present invention has other features and advantages, which will be apparent from or will be described in detail in the accompanying drawings and the following detailed description incorporated herein, which together serve to explain the specific principles of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural block diagram of a card swiping data processing device provided in Embodiment 1 of the present invention;

[0029] Figure 2 It is a relationship diagram between the card swiping rate and the voltage data before fitting in a card swiping data processing device provided in the first embodiment of the present invention;

[0030] Figure 3 It is a waveform after the output is amplified corresponding to the input of 500mV in a card swiping data processing device provided in the first embodiment of the present invention;

[0031] Figure 4 It is a waveform after output amplification corresponding to an input of 1000mV in a card swiping data processing device provided in the first embodiment of the present invention;

[0032] Figure 5 It is a flowchart of a card swiping data processing method provided in Embodiment 2 of the present invention;

[0033] Figure 6 This is another flowchart of a card swiping data processing method provided in the second embodiment of the present invention.

[0034] Figure numerals: 10, magnetic signal sensing module; 20, ADC acquisition module; 30, processing control module; 40, magnetic card sensing module; 50, voltage regulation module; 60, operational amplifier module. DETAILED DESCRIPTION

[0035] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0036] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0037] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0038] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0039] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0040] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0041] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0042] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0043] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0044] Embodiment 1

[0045] Please refer to Figure 1An embodiment of the present invention provides a card swiping data processing device, including a magnetic signal sensing module 10, an ADC acquisition module 20 and a processing control module 30. The magnetic signal sensing module 10 is used to generate a magnetic card interaction signal when a card swiping action occurs, and the ADC acquisition module 20 is used to collect the magnetic card interaction signal to generate a digital signal; the processing control module 30 is a microprocessor, which is used to obtain the digital signal and decode it to obtain the magnetic card storage information.

[0046] When the card swiping action occurs, the magnetic signal sensing module 10 senses the magnetic field change of the magnetic card and generates a magnetic card interaction signal. Then the ADC acquisition module 20 acquires the magnetic card interaction signal and converts it into a digital signal. Finally, the processing control module 30 obtains the digital signal and decodes it to obtain the magnetic card storage information, thereby quickly and accurately reading the information in the magnetic card, providing an efficient and reliable solution for various scenarios that require magnetic card data processing, such as financial transactions, access control systems, etc.

[0047] In this embodiment, the card swiping data processing device also includes a magnetic card sensing module 40 and a voltage regulating module 50; the magnetic card sensing module 40 is used to generate a motion trigger signal when a card swiping action occurs, and the processing control module 30 is used to calculate the card swiping rate based on the motion trigger signal, and generate a voltage regulating control signal according to the card swiping rate, and the voltage regulating module 50 is used to adjust the reference voltage to the magnetic signal sensing module 10 according to the voltage regulating control signal, so that the magnetic card interaction signal is within the acquisition range of the ADC acquisition module 20.

[0048] Based on this, when the card swiping action occurs, the magnetic card sensing module 40 generates a motion trigger signal, the processing control module 30 calculates the card swiping rate based on the motion trigger signal, and generates a voltage regulation control signal according to the card swiping rate, so that the voltage regulation module 50 adjusts the reference voltage to the magnetic signal sensing module 10 according to the control signal, thereby ensuring that the magnetic card interaction signal is always within the acquisition range of the ADC acquisition module 20.

[0049] It can be understood that this embodiment dynamically adjusts the reference voltage by real-time monitoring of the card swiping rate to adapt to different card swiping speeds, thereby improving the adaptability of the device to different card swiping speeds and ensuring the stable collection and accurate processing of the magnetic card interaction signal. Regardless of the speed at which the user swipes the card, the magnetic card storage information can be efficiently obtained, thereby improving the reliability and practicality of the entire card swiping data processing device.

[0050] Specifically, the magnetic signal sensing module 10 includes a magnetic head sensor, which is used to obtain a magnetic track signal generated by a magnetic card cutting a magnetic field; when the magnetic card cuts the magnetic field, according to the principle of electromagnetic induction, the conductor loop in the magnetic head sensor will generate an induced electromotive force, thereby forming a magnetic track signal.

[0051] Furthermore, the magnetic signal sensing module 10 also includes an operational amplifier module 60, which is used to amplify the input voltage signal of the input head sensor, amplify the weak input voltage signal to a suitable amplitude, so as to adjust the induced electromotive force of the head sensor; and, for the magnetic track signal output by the magnetic signal sensing module 10, the operational amplifier module 60 amplifies it again to enhance the signal strength and form a magnetic card interaction signal that is easier to be processed by subsequent circuits.

[0052] This embodiment improves the quality and stability of the signal, does not require additional specified magnetic head sensors, can match a variety of magnetic head sensors, greatly improves the versatility and compatibility of the device, and can adapt to different usage scenarios and equipment requirements, reducing costs and complexity. At the same time, through the adjustable reference signal, the signal amplification threshold is increased by using the follower amplifier principle, so that the subsequent ADC acquisition module 20 can collect signals more accurately, thereby improving the success rate of decoding, reducing the transmission of error code elements, greatly improving the error correction rate, reducing the generation of error data, and improving the quality and efficiency of card swipe data processing.

[0053] Furthermore, the magnetic card sensing module 40 is a Hall sensor, and the magnetic card sensing module 40 is used to be triggered when a card swiping action occurs and send a pulse to the processing control module 30 .

[0054] For example, the specific implementation method of the card swiping action is to use the magnetic card to drive the pulley to move when swiping the card. The pulley cuts the magnetic field of the Hall sensor during the movement. When the pulley cuts the magnetic field, the Hall sensor will generate a corresponding electrical signal according to the change of the magnetic field, that is, the aforementioned pulse; the processing control module 30 receives the electrical signal from the Hall sensor, and calculates the movement speed of the pulley by analyzing the electrical signal, and then determines the card swiping speed of the magnetic card, so that the card swiping speed can be accurately monitored in real time, and reliable data support is provided for subsequent operations such as dynamically adjusting the reference voltage according to the card swiping speed, thereby ensuring the efficiency and stability of the entire card swiping data processing process.

[0055] In this embodiment, the processing control module 30 calculates the card swiping rate according to the following formula:

[0056]

[0057] in is the card swiping rate, The pulse quantity t sent by the magnetic card induction module 40 processing control module 30, is the reference maximum voltage of the ADC acquisition module 20, The value of is generally 3300, n is the ADC sampling accuracy, and the value of n is generally 2048.

[0058] Furthermore, the processing control module 30 is used to generate a voltage regulation control signal based on the negative correlation between the card swiping rate and the induced electromotive force of the magnetic signal sensing module 10 .

[0059] It is understandable that when the card swiping action occurs, the processing control module 30 performs voltage data fitting according to the calculated card swiping rate. Figure 2 , Figure 2 The figure is a relationship diagram between the card swiping rate and the voltage data before fitting, in which the horizontal axis is the card swiping rate and the vertical axis is the voltage value. In this embodiment, the microprocessor performs fitting based on the negative correlation between the card swiping rate and the induced electromotive force of the magnetic signal sensing module 10. The faster the card swiping rate, the lower the voltage, and vice versa. The processing control module 30 generates a voltage regulation control signal based on this relationship, and the voltage regulation module 50 adjusts the reference voltage to the magnetic signal sensing module 10 based on the signal to ensure that the magnetic card interaction signal is within the acquisition range of the ADC acquisition module 20, thereby ensuring the accuracy and stability of the card swiping data processing and effectively improving the adaptability of the device to different card swiping scenarios.

[0060] By simulating different input reference voltages of the operational amplifier module 60, the ADC acquisition module 20 can acquire corresponding waveforms. Figure 3 , Figure 4 As shown, Figure 3 The corresponding output waveform after amplification is 500mV input, where the amplification factor is 5 times and the simulated card swiping rate is 50cm / s; Figure 4 When the input is 1000mV, the corresponding output is amplified waveform, where the amplification factor is 5 times, and the simulated card swiping rate is 30cm / s. After processing, these waveforms can be stabilized within the collection range of the ADC acquisition module 20 of the microprocessor, thereby ensuring that the card swiping data processing device can accurately collect and process the magnetic card interaction signal, providing a reliable basis for subsequent decoding and information acquisition.

[0061] Furthermore, the magnetic card sensing module 40 is also used to generate a power supply signal when a card is identified to be inserted, and the power supply signal is used to open a power supply path to the magnetic signal sensing module 10. By detecting physical changes when a card is inserted, such as mechanical contact, magnetic field changes, etc., the power switch is triggered, and when no card is inserted, the system is in a low power consumption state, reducing unnecessary energy consumption.

[0062] In this embodiment, when no card is inserted, the leakage current of the system is 200uA, which reduces energy waste and meets the requirements of energy saving and environmental protection.

[0063] Embodiment 2

[0064] Please Figure 1 Based on this, continue to refer to Figure 5 and Figure 6 The present invention also provides a card swiping data processing method, which is implemented based on any of the card swiping data processing devices as described above.

[0065] In this embodiment, when a card swiping action occurs, the card swiping data processing method includes:

[0066] S11, generating a magnetic card interaction signal;

[0067] S12, collecting the magnetic card interaction signal and generating a digital signal, and obtaining the magnetic card storage information based on the digital signal decoding;

[0068] When the card swiping action occurs, the card swiping data processing method further includes:

[0069] S21, generating a motion trigger signal;

[0070] S22, calculating the card swiping rate based on the motion trigger signal, and generating a voltage regulation control signal according to the card swiping rate;

[0071] S23, adjusting the induced electromotive force of the magnetic signal sensing module 10 according to the voltage regulation control signal, so that the magnetic card interaction signal is within the effective collection range.

[0072] In this embodiment, first, a magnetic card interaction signal is generated when a card swiping action occurs. The specific process is that the magnetic head sensor in the magnetic signal sensing module 10 obtains the magnetic track signal generated by the magnetic card cutting magnetic field under the card swiping action, and at the same time, the operational amplifier module 60 amplifies the input voltage signal of the input magnetic head sensor to adjust the induced electromotive force of the magnetic head sensor, and amplifies the magnetic track signal output by the magnetic signal sensing module 10 again to form a magnetic card interaction signal that is easy to process later. Then, the ADC acquisition module 20 acquires the magnetic card interaction signal and generates it into a digital signal, and then the processing control module 30 decodes the digital signal to obtain the magnetic card storage information. In this way, the information in the magnetic card can be read quickly and accurately, providing efficient and reliable solutions for various scenarios such as financial transactions and access control systems.

[0073] When the card swiping action occurs, the card swiping data processing method also includes generating a motion trigger signal. It is understandable that in actual operation, when the card is swiped, the Hall sensor in the magnetic card sensing module 40 drives the pulley to move, and the pulley cuts the magnetic field of the Hall sensor to generate a corresponding electrical signal, i.e., a motion trigger signal.

[0074] The processing control module 30 calculates the card swiping rate based on the motion trigger signal, and the calculation formula is:

[0075]

[0076] in is the card swiping rate, The pulse quantity t sent by the magnetic card induction module 40 processing control module 30, is the reference maximum voltage of the ADC acquisition module 20, and n is the ADC sampling accuracy.

[0077] In this embodiment, the processing control module 30 is used to generate a voltage regulation control signal based on the negative correlation between the card swiping rate and the induced electromotive force of the magnetic signal sensing module 10 .

[0078] When the card swiping action occurs, the processing control module 30 fits the voltage data according to the calculated card swiping rate. Since the card swiping rate is negatively correlated with the induced electromotive force of the magnetic signal sensing module 10, the microprocessor fits the data output according to the card swiping rate to control the voltage value of the voltage regulating unit. The faster the card swiping rate, the lower the voltage, and vice versa. The processing control module 30 generates a voltage regulation control signal based on this relationship, and the voltage regulation module 50 adjusts the reference voltage to the magnetic signal sensing module 10 according to the signal to ensure that the magnetic card interaction signal is within the acquisition range of the ADC acquisition module 20, thereby ensuring the accuracy and stability of the card swiping data processing and effectively improving the adaptability of the device to different card swiping scenarios.

[0079] Furthermore, the magnetic signal sensing module 10 is configured to include a magnetic head sensor and an operational amplifier module 60. The operational amplifier module 60 amplifies the input voltage signal of the magnetic head sensor and amplifies the weak input voltage signal to a suitable amplitude to adjust the induced electromotive force of the magnetic head sensor. For the magnetic track signal output by the magnetic signal sensing module 10, the operational amplifier module 60 amplifies it again to enhance the signal strength and form a magnetic card interaction signal that is easier to be processed by subsequent circuits.

[0080] The magnetic card sensing module 40 is further configured to generate a power supply signal when a card is identified to be inserted, and the power supply signal is used to open a power supply path to the magnetic signal sensing module 10 .

[0081] It can be understood that when the magnetic card sensing module 40 recognizes that a card is inserted, it generates a power supply signal to open the power supply path to the magnetic signal sensing module 10, and triggers the power switch based on the physical changes when the card is inserted, such as mechanical contact, magnetic field changes, etc.; when no card is inserted, the system is in a low power consumption state to reduce unnecessary energy consumption, and the leakage current is only 200uA, which meets the requirements of energy saving and environmental protection.

[0082] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A card swiping data processing device, characterized in that: It includes a magnetic signal sensing module, an ADC acquisition module and a processing control module. The magnetic signal sensing module is used to generate a magnetic card interaction signal when a card swiping action occurs. The ADC acquisition module is used to collect the magnetic card interaction signal to generate a digital signal. The processing control module is used to obtain the digital signal and decode it to obtain the magnetic card storage information. The card swiping data processing device also includes a magnetic card sensing module and a voltage regulating module; the magnetic card sensing module is used to generate a motion trigger signal when a card swiping action occurs, the processing control module is used to calculate the card swiping rate based on the motion trigger signal, and generate a voltage regulating control signal according to the card swiping rate, and the voltage regulating module is used to adjust the reference voltage to the magnetic signal sensing module according to the voltage regulating control signal so that the magnetic card interaction signal is within the acquisition range of the ADC acquisition module.

2. The card swiping data processing device according to claim 1, characterized in that: The magnetic card sensing module is a Hall sensor, which is used to be triggered when a card swiping action occurs and send a pulse to the processing control module.

3. The card swiping data processing device according to claim 1, characterized in that: The processing control module calculates the card swiping rate according to the following formula: ； in is the card swiping rate, is the pulse quantity t sent by the processing control module of the magnetic card sensing module, is the reference maximum voltage of the ADC acquisition module, and n is the ADC sampling accuracy.

4. The card swiping data processing device according to claim 3, characterized in that: The processing control module is used to generate a voltage regulation control signal based on the negative correlation between the card swiping rate and the induced electromotive force of the magnetic signal sensing module.

5. The card swiping data processing device according to claim 1, characterized in that: The magnetic signal sensing module includes a magnetic head sensor, and the magnetic head sensor is used to obtain the magnetic track signal generated by the magnetic card cutting magnetic field; The magnetic signal sensing module also includes an operational amplifier module, which is used to amplify the input voltage signal of the magnetic head sensor to adjust the induced electromotive force of the magnetic head sensor; and is used to amplify the magnetic track signal output by the magnetic signal sensing module to form a magnetic card interaction signal.

6. The card swiping data processing device according to claim 1, characterized in that: The magnetic card sensing module is also used to generate a power supply signal when identifying that a card is inserted, and the power supply signal is used to open a power supply path to the magnetic signal sensing module.

7. A card swiping data processing method, characterized in that: Based on the card swiping data processing device according to any one of claims 1 to 6, when a card swiping action occurs, the card swiping data processing method comprises: generating a magnetic card interaction signal, collecting the magnetic card interaction signal and generating a digital signal, and obtaining the magnetic card storage information based on the digital signal decoding; When a card swiping action occurs, the card swiping data processing method also includes: generating a motion trigger signal; calculating the card swiping rate based on the motion trigger signal, and generating a voltage regulation control signal according to the card swiping rate; and adjusting the induced electromotive force of the magnetic signal sensing module according to the voltage regulation control signal so that the magnetic card interaction signal is within the effective collection range.

8. The card swiping data processing method according to claim 7, characterized in that: The processing control module calculates the card swiping rate according to the following formula: ； in is the card swiping rate, is the pulse quantity t sent by the processing control module of the magnetic card sensing module, is the reference maximum voltage of the ADC acquisition module, and n is the ADC sampling accuracy.

9. The card swiping data processing method according to claim 7, characterized in that: The processing control module is used to generate a voltage regulation control signal based on the negative correlation between the card swiping rate and the induced electromotive force of the magnetic signal sensing module.

10. The card swiping data processing method according to claim 1, characterized in that: The magnetic signal sensing module is configured to include a magnetic head sensor and an operational amplifier module, wherein the magnetic head sensor is configured to obtain a magnetic track signal generated by a magnetic card cutting magnetic field; the operational amplifier module is configured to amplify an input voltage signal input to the magnetic head sensor to adjust the induced electromotive force of the magnetic head sensor; and is configured to amplify the magnetic track signal output by the magnetic signal sensing module to form a magnetic card interaction signal; The magnetic card sensing module is configured to generate a power supply signal when a card is identified to be inserted, and the power supply signal is used to open a power supply path to the magnetic signal sensing module.

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