Smart card system, smart card detection method, device and medium

Abstract

The application discloses an intelligent card system, an intelligent card detection method and device and a medium. The intelligent card system comprises an intelligent card and an intelligent card socket. The intelligent card is provided with a chip module and an induction coil connected with the chip module. The intelligent card socket comprises a card slot and an induction antenna module. The induction coil is used for constructing an induction area electromagnetically coupled with the induction antenna module. The induction area comprises at least a first sub-induction area and a second sub-induction area. The first sub-induction area and the second sub-induction area are arranged at two ends of the intelligent card respectively. When the intelligent card is inserted into the card slot, the first sub-induction area or the second sub-induction area is covered by the induction antenna module. The system of the application is provided with the first sub-induction area and the second sub-induction area. No matter whether the intelligent card is inserted in a forward direction or a reverse direction, one sub-induction area can be effectively coupled with the induction antenna module in the insertion process, so that the user operation convenience is improved. When the sub-induction area is covered by the induction antenna module in the insertion process, the long-distance false triggering can be effectively inhibited.

Description

Technical Field

[0001] This invention relates to the field of near-field communication technology, and in particular to a smart card system, smart card detection method, device and medium. Background Technology

[0002] With the development of wireless technology, wireless smart cards, with their convenient and efficient contactless communication characteristics, have been widely adopted in daily life and business applications such as access control, public transportation, financial payments, and identity recognition. In the existing technological landscape, Near Field Communication (NFC) cards, as the mainstream form of wireless smart cards, are generally focused on extending the sensing distance and improving communication response speed through research and optimization. This is achieved by enhancing radio frequency signal strength and optimizing antenna coil layout, enabling rapid card and reader identification and data interaction to meet the convenient usage needs of the general public.

[0003] However, in specific application scenarios such as game authentication, financial transactions, confidential access control, and industrial equipment management, users have strict requirements for the precision of smart card communication triggering logic. Specifically, the card must be inserted into a designated slot before sensing and data transmission can be initiated. This effectively avoids the risk of false sensing when the card is near the reader, while also improving the security and controllability of data transmission. However, traditional contact integrated circuit (IC) cards rely on metal contacts within the card slot to achieve physical connection with the card chip. Frequent insertion and removal can lead to wear, oxidation, or deformation of the contacts, resulting in poor contact, communication interruptions, and other malfunctions. This not only increases equipment maintenance costs but also shortens the lifespan of the card slot and the card, and it also has the drawback of requiring the card to be inserted in a single, specific direction for use. Therefore, there is an urgent need for a near-field contactless smart card communication system with a lower risk of false sensing. Summary of the Invention

[0004] This invention provides a smart card system, smart card detection method, device, and medium to solve the problems in related technologies, such as the high risk of accidental touch due to long sensing distance and poor contact and unreliable communication due to frequent insertion and removal.

[0005] In a first aspect, the present invention provides a smart card system, characterized in that it includes a smart card and a smart card socket, wherein the smart card is provided with a chip module and an induction coil connected to the chip module, and the smart card socket includes a card slot and an induction antenna module. The induction coil is used to construct an induction area that is electromagnetically coupled to the induction antenna module. The induction area includes at least a first sub-induction area and a second sub-induction area. The first sub-induction area and the second sub-induction area are respectively located at both ends of the smart card, and the first sub-induction area or the second sub-induction area is covered by the induction antenna module when the smart card is inserted into the card slot.

[0006] In some embodiments, the induction coil is a coil with a segmented structure, wherein the coil includes at least a first segmented structure and a second segmented structure, the coil of the first segmented structure is used to form a first sub-induction region, the coil of the second segmented structure is used to form a second sub-induction region, and the first segmented structure and the second segmented structure are connected by a longitudinal coil segment.

[0007] In some embodiments, the induction coil includes at least a first coil group and a second coil group. The first coil group is used to form a first sub-induction area, and the second coil group is used to form a second sub-induction area. The first coil group and the second coil group are respectively connected to the chip module.

[0008] In some embodiments, the smart card socket also includes a removable card slot cover, with the induction antenna module disposed inside the card slot cover.

[0009] In a second aspect, the present invention provides a smart card detection method, applied to the smart card system as described in the first aspect, characterized in that it includes: controlling an induction antenna module to send a smart card detection signal; Determine whether a detection feedback signal is received within a preset time window. The detection feedback signal is generated by the sensing area in response to the smart card detection signal. When a detection feedback signal is received within a preset time window, the signal transmission power of the induction antenna module is obtained; The smart card detection result is obtained based on the signal transmission power.

[0010] In some embodiments, obtaining the smart card detection result based on the signal transmission power includes: When the signal transmission power is greater than the preset power threshold, the smart card detection result is determined to be that the smart card is correctly inserted into the smart card socket; When the signal transmission power is less than or equal to the preset power threshold, the smart card detection result is determined to be that the smart card is not correctly inserted into the smart card socket.

[0011] In some embodiments, after obtaining the smart card detection result, the method further includes: When the smart card detection result indicates that the smart card is correctly inserted into the smart card socket, a communication connection is established between the smart card and the smart card socket. An alarm will be issued when the smart card detection result indicates that the smart card is not correctly inserted into the smart card socket.

[0012] In some embodiments, after determining whether a detection feedback signal is received within a preset time window, the method further includes: If no detection feedback signal is received within the preset time window, it is determined that the smart card is not inserted into the smart card socket, and the induction antenna module is controlled to resend the smart card detection signal.

[0013] Thirdly, the present invention provides a smart card detection device, comprising: a signal detection module for controlling an induction antenna module to send a smart card detection signal; The feedback judgment module is used to determine whether a detection feedback signal has been received within a preset time window. The detection feedback signal is generated by the sensing area in response to the smart card detection signal. The power acquisition module is used to acquire the signal transmission power of the induction antenna module when a detection feedback signal is received within a preset time window; The power processing module is used to obtain the smart card detection result based on the signal transmission power.

[0014] Fourthly, the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described smart card detection method.

[0015] In the above-mentioned smart card system, smart card detection method, device and medium, the smart card system includes a smart card and a smart card socket. The smart card contains a chip module and an induction coil connected to the chip module. The smart card socket includes a card slot and an induction antenna module. The induction coil is used to construct an induction area that is electromagnetically coupled to the induction antenna module. The induction area includes at least a first sub-induction area and a second sub-induction area. The first sub-induction area and the second sub-induction area are respectively located at both ends of the smart card, and the first sub-induction area or the second sub-induction area is covered by the induction antenna module when the smart card is inserted into the card slot. The system of this invention, by setting a first sub-sensing area and a second sub-sensing area, ensures that a sub-sensing area is effectively coupled to the induction antenna module regardless of whether the smart card is inserted in the forward or reverse direction, thereby improving the convenience of user operation. Furthermore, when the smart card is correctly inserted, the first or second sub-sensing area is covered by the induction antenna module, meaning that the area of ​​the first and second sub-sensing areas is smaller than the coverage area of ​​the induction antenna module. This requires the smart card to be precisely inserted to a specified depth in the card slot to trigger stable communication, thus achieving contactless near-field communication while avoiding the risk of false triggering over long distances. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural example diagram of a smart card system according to an embodiment of the present invention; Figure 2 This is a structural example diagram of a smart card in one embodiment of the present invention; Figure 3 This is a structural example diagram of a smart card in one embodiment of the present invention; Figure 4 This is a structural example diagram of a smart card in one embodiment of the present invention; Figure 5 This is a structural example diagram of a smart card socket according to an embodiment of the present invention; Figure 6 This is a flowchart of a smart card detection method according to an embodiment of the present invention; Figure 7 This is a schematic block diagram of a smart card detection device according to an embodiment of the present invention; Figure 8 This is a schematic block diagram of a computer device according to an embodiment of the present invention.

[0018] Explanation of icon numbers 100 Smart Card 110 chip module 120 induction coil 121 First segment structure 122 Second segment structure 123 Longitudinal coil segment 124 First Coil Group 125 Second Coil Group 130 sensing area 131 First Sub-Sensing Zone 132 Second Sub-sensing Zone 133 Third Sub-Induction Zone 200 smart card socket 210 card slot 220 Induction Antenna Module 230 Slot Cover Detailed Implementation In one embodiment, such as Figure 1 As shown, a smart card system is provided, which includes a smart card 100 and a smart card socket 200. The smart card 100 is provided with a chip module 110 and an induction coil 120 connected to the chip module 110. The smart card socket 200 includes a card slot 210 and an induction antenna module 220. The induction coil 120 is used to construct an induction area 130 electromagnetically coupled to the induction antenna module 220. The induction area 130 includes at least a first sub-induction area 131 and a second sub-induction area 132. The first sub-induction area 131 and the second sub-induction area 132 are respectively disposed at both ends of the smart card 100, and when the smart card 100 is inserted into the card slot 210, the first sub-induction area 131 or the second sub-induction area 132 is covered by the induction antenna module 220.

[0019] It should be understood that the first sub-sensing area 131 and the second sub-sensing area 132 are wound by the induction coil 120. The area of ​​the first sub-sensing area 131 and the second sub-sensing area 132 should be less than or equal to the coverage area of ​​the induction antenna module 220. This ensures that the induction antenna module 220 can completely cover any sub-sensing area only when the smart card 100 is fully inserted into the card slot 210, thereby generating a stable electromagnetic coupling signal to avoid false triggering at long distances.

[0020] In this disclosure, the location of the chip module 110 is not limited; it can be located in the edge area of ​​the smart card 100 or in the middle area of ​​the smart card 100.

[0021] As an example, the inductive antenna module 220 can be a printed circuit board (PCB) antenna, but is not limited thereto, and can also be other miniaturized antennas capable of electromagnetic coupling, which is not limited in this invention.

[0022] As an example, the induction coil 120 is located inside the smart card 100, for example, in an embedded manner close to the card body substrate, thereby avoiding mechanical wear caused by being located on the card body surface and helping to improve the service life of the smart card.

[0023] As an example, the number of coil turns and area of ​​the first sub-sensing area 131 and the second sub-sensing area 132 may be the same or different, and the present invention does not limit this. In actual deployment, the number of coil turns and area of ​​the first sub-sensing area 131 and the second sub-sensing area 132 can be determined collaboratively based on parameters such as the thickness of the smart card 100, the depth of the card slot 210, and the transmission power of the sensing antenna module 220.

[0024] As an example, chip module 110 is used to implement smart card functions. For example, when smart card 100 is a game card, chip module 110 can be used to implement identity authentication and game data transmission; when smart card 100 is an access control card, chip module 110 is used to implement key verification and permission recognition, etc. The chip module 110 can be an integrated circuit IC chip, or a dedicated SoC chip with a security encryption coprocessor, etc., and the present invention does not limit it in this way.

[0025] As an example, the sensing antenna module 220 is disposed inside the smart card socket 200 and can be arranged parallel to the side wall of the card slot 210 so that the sensing area 130 and the sensing antenna module 220 form an optimal coupling posture when the smart card 100 is inserted.

[0026] As an example, the present invention does not limit the number of sub-sensing areas included in the sensing area 130, and it can be expanded according to actual needs, for example... Figure 2As shown, the sensing area 130 may also include a third sub-sensing area 133 to further improve the fault tolerance of the card insertion posture.

[0027] As an example, for instance Figure 3 As shown, the induction coil 120 is a coil with a segmented structure, wherein the coil includes at least a first segmented structure 121 and a second segmented structure 122. The first segmented structure 121 is used to construct a first sub-induction region 131, and the second segmented structure 122 is used to construct a second sub-induction region 132. The first segmented structure 121 and the second segmented structure 122 are connected by a longitudinal coil segment 123.

[0028] In other words, the first segment structure 121 is the structure of the induction coil 120 that constructs the first sub-induction area 131, and the second segment structure 122 is the structure of the induction coil 120 that constructs the second sub-induction area 132. Furthermore, the first sub-induction area 131 and the second sub-induction area 132 are not independent coils, but rather part of the same closed loop that is electrically connected through the longitudinal coil segment 123. This reduces the number of ports connected to the chip module 110, thereby reducing the cost of the smart card and the risk of signal crosstalk.

[0029] It should be understood that the longitudinal coil segment 123 can be located in the middle of the smart card 100 or in the edge area of ​​the smart card 100. Its length and bending angle can be flexibly adapted according to the material and type of the smart card 100. This invention does not limit this.

[0030] As an example, for instance Figure 4 As shown, the induction coil 120 includes at least a first coil group 124 and a second coil group 125. The first coil group 124 is used to construct a first sub-induction area 131, and the second coil group 125 is used to construct a second sub-induction area 132. The first coil group 124 and the second coil group 125 are independently connected to the chip module 110 to form a dual-channel coupling path. When one end of the smart card 100 fails due to wear or obstruction, the other channel can still maintain stable communication, which can improve the environmental adaptability of the smart card 100.

[0031] It should be understood that the induction coil 120 may also include a third coil group for constructing a third sub-induction area, which together with the first 124 and the second coil group 125 constitutes a multi-redundant coupling network; it may also include more coil groups according to the actual application scenario requirements, and the present invention does not limit the number of coil groups.

[0032] As an example, such as Figure 5As shown, the smart card socket 200 also includes a detachable card slot cover 230, and the induction antenna module 220 is embedded inside the card slot cover 230. The card slot cover 230 can be quickly assembled through a magnetic structure or a snap-fit ​​structure. When the card slot cover 230 is removed, the induction antenna module 220 is moved out as a whole without disconnecting any wiring connections, which simplifies the maintenance process.

[0033] In one embodiment, such as Figure 6 As shown, a smart card detection method is provided, applicable to, for example... Figure 1-5 The smart card system shown can be executed by a card reader or control unit on the smart card socket side. The following description uses a card reader as an example, including: S601 controls the induction antenna module to send smart card detection signals; S602, determine whether a detection feedback signal is received within a preset time window. The detection feedback signal is generated by the sensing area in response to the smart card detection signal. S603: When a detection feedback signal is received within a preset time window, the signal transmission power of the induction antenna module is obtained. S604 obtains the smart card detection result based on the signal transmission power.

[0034] As an example, in step S601, the card reader can periodically or non-periodically (e.g., at fixed times) control the sensing antenna module to send a detection signal to the smart card to ensure timely detection when the smart card is inserted.

[0035] The smart card detection signal is, for example, an electromagnetic wave signal, the frequency and amplitude of which can be determined according to the material of the smart card and the number of turns of the induction coil. This invention does not limit this.

[0036] As an example, in step S602, after the smart card detection signal is transmitted, the card reader can continuously detect whether the sensing antenna module receives a detection feedback signal from the sensing area within a preset time window, thereby determining whether a smart card exists in the card slot.

[0037] In other words, when a smart card is in the card slot, the induction coil and the induction antenna module form an electromagnetic coupling. At this time, the induction coil can generate a detection feedback signal based on the smart card detection signal and send it back to the induction antenna module. Therefore, the card reader can determine whether there is a smart card in the card slot based on whether it receives the feedback signal within a preset time window.

[0038] As an example, in step S603, when a detection feedback signal is received within a preset time window, it indicates that a smart card exists in the card slot. At this time, the card reader further acquires the real-time signal transmission power value of the induction antenna module in the coupled state with the smart card.

[0039] As an example, in step S604, since the signal transmission power is positively correlated with the coupling strength between the smart card and the sensing antenna module, when the smart card is correctly inserted into the smart card socket, the antenna module is closer to the sensing area of ​​the smart card, and the coverage area is larger, resulting in higher coupling strength and higher transmission power. Conversely, if the smart card is not correctly inserted into the smart card socket, the coupling distance increases and the coverage shifts, leading to a decrease in coupling strength and a corresponding decrease in transmission power. Therefore, by comparing the acquired signal transmission power with a preset power threshold, it can be determined whether the smart card is correctly inserted into the smart card socket, thereby obtaining the smart card detection result.

[0040] Specifically, when the signal transmission power is greater than the preset power threshold, the smart card detection result is determined to be that the smart card is correctly inserted into the smart card socket; when the signal transmission power is less than or equal to the preset power threshold, the smart card detection result is determined to be that the smart card is not correctly inserted into the smart card socket.

[0041] In summary, this invention proposes a smart card detection method, comprising: controlling an induction antenna module to send a smart card detection signal; determining whether a detection feedback signal is received within a preset time window, wherein the detection feedback signal is generated by the sensing area in response to the smart card detection signal; when a detection feedback signal is received within the preset time window, acquiring the signal transmission power of the induction antenna module; and obtaining the smart card detection result based on the signal transmission power. This method detects whether a smart card is inserted into a smart card socket in real time by sending a detection signal, and determines whether the smart card insertion status is compliant based on the signal transmission power. This achieves high-precision, low-false-rate smart card status recognition without physical contact, significantly improving the automated detection capability and user experience of smart cards.

[0042] In one embodiment, when the signal transmission power is greater than a preset power threshold, the smart card detection result is determined to be that the smart card is correctly inserted into the smart card socket; when the signal transmission power is less than or equal to the preset power threshold, the smart card detection result is determined to be that the smart card is not correctly inserted into the smart card socket.

[0043] In other words, when the signal transmission power is greater than the preset power threshold, it means that the distance between the smart card's sensing area and the sensing antenna module is close enough and the coupling area is sufficient. At this time, it can be determined that the smart card is correctly inserted into the smart card socket. When the signal transmission power is less than or equal to the preset threshold, it means that the smart card is not fully inserted into the smart card socket or there is an obstruction, resulting in an excessive coupling distance or insufficient coverage area. At this time, it can be determined that the smart card is not correctly inserted into the smart card socket.

[0044] It should be understood that a smart card is correctly inserted into the smart card socket when one end of the smart card is fully inserted into the card slot and the sensing area at that end is completely covered by the sensing antenna module.

[0045] Furthermore, when the smart card detection result indicates that the smart card is correctly inserted into the smart card socket, it means that a stable electromagnetic coupling has been established between the smart card and the smart card socket. At this time, a communication connection can be established between the smart card and the smart card socket. The card reader can then interact with the smart card's chip module through this communication connection to complete operations such as identity authentication, transaction authorization, or permission verification. When the detection result indicates that the card is not correctly inserted, an alarm is triggered to guide the user to reinsert the card, thereby avoiding communication failures or data errors caused by poor contact and ensuring the security and stability of the smart card system.

[0046] The alarm prompts may include flashing visual indicator lights, short beeps from a buzzer, or pop-up notifications on the screen, etc., and this invention does not limit them.

[0047] In one embodiment, if no detection feedback signal is received within a preset time window, it indicates that the sensing antenna module has not detected any response. At this time, it can be determined that the smart card is not inserted into the smart card socket, and the sensing antenna module is controlled to resend the smart card detection signal to perform cyclic detection of the smart card.

[0048] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0049] In one embodiment, a smart card detection device is provided, which corresponds one-to-one with the smart card detection method described in the above embodiments. For example... Figure 7 As shown, the smart card detection device includes a signal detection module 701, a feedback judgment module 702, a power acquisition module 703, and a power processing module 704. Detailed descriptions of each functional module are as follows: Signal detection module 701 is used to control the induction antenna module to send smart card detection signals; The feedback judgment module 702 is used to determine whether a detection feedback signal is received within a preset time window. The detection feedback signal is generated by the sensing area in response to the smart card detection signal. The power acquisition module 703 is used to acquire the signal transmission power of the induction antenna module when a detection feedback signal is received within a preset time window; The power processing module 704 is used to obtain the smart card detection result based on the signal transmission power.

[0050] In one embodiment, the power processing module 704 is further configured to determine that the smart card detection result is that the smart card is correctly inserted into the smart card socket when the signal transmission power is greater than a preset power threshold. When the signal transmission power is less than or equal to the preset power threshold, the smart card detection result is determined to be that the smart card is not correctly inserted into the smart card socket.

[0051] In one embodiment, the power processing module 704 is further configured to establish a communication connection between the smart card and the smart card socket when the smart card detection result indicates that the smart card is correctly inserted into the smart card socket; An alarm will be issued when the smart card detection result indicates that the smart card is not correctly inserted into the smart card socket.

[0052] In one embodiment, the power acquisition module 703 is further configured to determine that the smart card is not inserted into the smart card socket when no detection feedback signal is received within a preset time window, and control the induction antenna module to resend the smart card detection signal.

[0053] This invention provides a smart card detection device, comprising: a signal detection module for controlling an induction antenna module to send a smart card detection signal; a feedback judgment module for judging whether a detection feedback signal is received within a preset time window, the detection feedback signal being generated by the sensing area in response to the smart card detection signal; a power acquisition module for acquiring the signal transmission power of the induction antenna module when the detection feedback signal is received within the preset time window; and a power processing module for obtaining the smart card detection result based on the signal transmission power. This device detects whether a smart card is inserted into a smart card socket in real time by sending a detection signal, and judges whether the smart card's insertion status is compliant based on the signal transmission power. This achieves high-precision, low-false-rate smart card status recognition without physical contact, significantly improving the automated detection capability and user experience of smart cards.

[0054] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 8 As shown, the computer device includes a processor, memory, network interface, and database connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and database. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The network interface is used for communication with external terminals via a network connection. When executed by the processor, the computer program can implement a smart card detection method.

[0055] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement a smart card detection method.

[0056] In one embodiment, a computer-readable storage medium is provided, the computer-readable storage medium storing a computer program that, when executed by a processor, implements a smart card detection method.

[0057] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), IAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0058] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is used as an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0059] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A smart card system, characterized in that, The device includes a smart card and a smart card socket. The smart card contains a chip module and an induction coil connected to the chip module. The smart card socket includes a card slot and an induction antenna module. The induction coil is used to construct an induction area that is electromagnetically coupled to the induction antenna module. The induction area includes at least a first sub-induction area and a second sub-induction area. The first sub-induction area and the second sub-induction area are respectively disposed at both ends of the smart card, and the first sub-induction area or the second sub-induction area is covered by the induction antenna module when the smart card is inserted into the card slot.

2. The smart card system according to claim 1, characterized in that, The induction coil is a segmented coil structure, wherein the coil includes at least a first segment structure and a second segment structure. The coil of the first segment structure is used to form the first sub-induction area, and the coil of the second segment structure is used to form the second sub-induction area. The first segment structure and the second segment structure are connected by a longitudinal coil segment.

3. The smart card system according to claim 1, characterized in that, The induction coil includes at least a first coil group and a second coil group. The first coil group is used to form the first sub-induction area, and the second coil group is used to form the second sub-induction area. The first coil group and the second coil group are respectively connected to the chip module.

4. The smart card system according to claim 1, characterized in that, The smart card socket also includes a removable card slot cover, and the induction antenna module is disposed inside the card slot cover.

5. A smart card detection method, characterized in that, The smart card system as described in any one of claims 1-4 includes: Control the induction antenna module to send smart card detection signals; Determine whether a detection feedback signal is received within a preset time window. The detection feedback signal is generated by the sensing area in response to the smart card detection signal. When the detection feedback signal is received within the preset time window, the signal transmission power of the sensing antenna module is obtained; The smart card detection result is obtained based on the signal transmission power.

6. The method according to claim 5, characterized in that, The process of obtaining the smart card detection result based on the signal transmission power includes: When the signal transmission power is greater than a preset power threshold, the smart card detection result is determined to be that the smart card is correctly inserted into the smart card socket; When the signal transmission power is less than or equal to the preset power threshold, the smart card detection result is determined to be that the smart card is not correctly inserted into the smart card socket.

7. The method according to claim 5, characterized in that, After obtaining the smart card detection result, the following is also included: When the smart card detection result indicates that the smart card is correctly inserted into the smart card socket, a communication connection is established between the smart card and the smart card socket; An alarm is issued when the smart card detection result indicates that the smart card is not correctly inserted into the smart card socket.

8. The method according to claim 5, characterized in that, After determining whether a detection feedback signal is received within a preset time window, the method further includes: If the detection feedback signal is not received within the preset time window, it is determined that the smart card is not inserted into the smart card socket, and the sensing antenna module is controlled to resend the smart card detection signal.

9. A smart card detection device, characterized in that, include: The signal detection module is used to control the induction antenna module to send smart card detection signals; The feedback judgment module is used to determine whether a detection feedback signal is received within a preset time window. The detection feedback signal is generated by the sensing area in response to the smart card detection signal. The power acquisition module is used to acquire the signal transmission power of the induction antenna module when the detection feedback signal is received within the preset time window; The power processing module is used to obtain the smart card detection result based on the signal transmission power.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the smart card detection method as described in any one of claims 5 to 8.

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