Passive near field communication device, method and apparatus

Abstract

The present disclosure provides a passive near field communication device, method and apparatus, wherein the passive near field communication device comprises: a wake-up tuning coil and a communication antenna coil; the resonance point of the wake-up tuning coil is the same as the carrier frequency band of a card reading device, and is used to couple with the antenna of the card reading device when the antenna of the card reading device is close, and to release the low-power card detection mode of the card reading device; the communication antenna coil is used to communicate with the card reading device in the full-power card detection mode of the card reading device.

Description

[0001] This application is a divisional application of the invention application filed on November 27, 2023, with application number 202311607547.3 and invention title "A Passive Near Field Communication Device, Method and Apparatus". Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to a passive near-field communication device, method, and apparatus. Background Technology

[0003] Currently, NFC (Near Field Communication) payment methods are mainly used for public transportation / subway payments and some bank card payments. On the device side, NFC primarily operates in active mode, identifying and deducting funds from public transportation / subway cards, some bank cards, and simulated cards on mobile phones to complete offline payments. However, for scenarios such as small businesses that cannot be powered 24 / 7, even battery-powered devices may run out of power. To enable communication and payment completion in these situations, the payment device needs to operate in passive mode. Additionally, to accommodate users whose phones are incompatible with standalone card emulation systems, our payment device also needs to operate in passive mode.

[0004] Therefore, how to enable NFC payment devices to complete payments without power is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] The purpose of this disclosure is to provide a passive near-field communication device to at least solve the technical problem in the related art that NFC payment devices cannot complete payments under conditions of no power supply.

[0006] According to one aspect of the present disclosure, a passive near-field communication device is provided, comprising: a wake-up tuning coil and a communication antenna coil;

[0007] The wake-up tuning coil is a bare coil, and the resonant point of the wake-up tuning coil is the same as the carrier frequency band of the card reader.

[0008] An NFC chip is connected in series in the communication antenna coil and tuned to the carrier frequency band of the card reader;

[0009] The wake-up tuning coil is used to couple with the antenna of the card reader when the antenna of the card reader is close, thereby deactivating the low-power card detection mode of the card reader.

[0010] The communication antenna coil is used to communicate with the card reader in the full-power card detection mode of the card reader.

[0011] In one exemplary embodiment, the wake-up tuning coil includes: a first wake-up tuning coil;

[0012] The first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in the same plane, and the induced magnetic fields within the coils overlap.

[0013] In one exemplary embodiment, the first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device for coupling with the antenna in the middle or lower half of the card reader device.

[0014] In one exemplary embodiment, the first wake-up tuning coil is rectangular or oval in shape and is used to couple with the rectangular or oval antenna of the card reader.

[0015] In one exemplary embodiment, the wake-up tuning coil includes: a second wake-up tuning coil;

[0016] The second wake-up tuning coil is located on the upper side of the passive near-field communication device and is used to couple with the antenna on the upper side of the card reader device.

[0017] In one exemplary embodiment, the second wake-up tuning coil is strip-shaped and is used to couple with the strip antenna on the upper side of the card reader device.

[0018] According to another aspect of the embodiments of this disclosure, a passive near-field communication method is also provided, characterized in that it includes:

[0019] The low-power card detection carrier of the card reader is received by waking up the tuning coil, and the resonant point of the waking up tuning coil is the same as the carrier frequency band of the card reader.

[0020] Upon receiving a low-power card detection carrier from the card reader, the wake-up tuning coil generates a wake-up induction magnetic field, which is used to deactivate the low-power card detection mode of the card reader.

[0021] The communication antenna coil receives the full-power card detection carrier of the card reader, and the communication antenna coil contains an NFC chip connected in series and is tuned to the carrier frequency band of the card reader.

[0022] Upon receiving a full-power card detection carrier from the card reader, the communication antenna coil generates a communication induction magnetic field and communicates with the card reader based on the communication induction magnetic field.

[0023] In one exemplary embodiment, receiving a low-power card detection carrier from a card reader by waking up the tuning coil includes:

[0024] The low-power card detection carrier of the card reader is received by the first wake-up tuning coil. The first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in the same plane, and the induced magnetic fields within the coils overlap.

[0025] In one exemplary embodiment, the first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device for coupling with the antenna in the middle or lower half of the card reader device.

[0026] In one exemplary embodiment, the first wake-up tuning coil has the same shape as the rectangular or oval antenna of the card reader.

[0027] In one exemplary embodiment, receiving a low-power card detection carrier from a card reader by waking up the tuning coil includes:

[0028] The low-power card detection carrier transmitted by the antenna on the upper side of the card reader is received by the second wake-up tuning coil, which is located on the upper side of the passive near-field communication device.

[0029] In one exemplary embodiment, the second wake-up tuning coil has the same shape as the strip antenna on the upper side of the card reader.

[0030] According to another aspect of the present disclosure, a passive near-field communication device is also provided, characterized in that it comprises:

[0031] The first receiving module is used to receive the low-power card detection carrier of the card reader through a wake-up tuning coil, wherein the resonant point of the wake-up tuning coil is the same as the carrier frequency band of the card reader.

[0032] A wake-up module is used to generate a wake-up induction magnetic field by the wake-up tuning coil when a low-power card detection carrier is received from the card reader. The induction magnetic field is used to deactivate the low-power card detection mode of the card reader.

[0033] The second receiving module is used to receive the full-power card detection carrier of the card reader through a communication antenna coil, wherein an NFC chip is connected in series in the communication antenna coil and tuned to the carrier frequency band of the card reader;

[0034] The communication module is used to generate a communication induction magnetic field by the communication antenna coil when the card reader receives a full-power card detection carrier from the card reader, and to communicate with the card reader based on the communication induction magnetic field.

[0035] In an exemplary embodiment, the first receiving module includes:

[0036] The first receiving unit is used to receive the low-power card detection carrier of the card reader through the first wake-up tuning coil, wherein the first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in the plane they are in, and the induced magnetic fields within the coils overlap.

[0037] In one exemplary embodiment, the first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device for coupling with the antenna in the middle or lower half of the card reader device.

[0038] In one exemplary embodiment, the first wake-up tuning coil has the same shape as the rectangular or oval antenna of the card reader.

[0039] In an exemplary embodiment, the first receiving module includes:

[0040] The second receiving unit is used to receive a low-power card detection carrier transmitted by the antenna on the upper side of the card reader via a second wake-up tuning coil, wherein the second wake-up tuning coil is located on the upper side of the passive near-field communication device.

[0041] In one exemplary embodiment, the second wake-up tuning coil has the same shape as the strip antenna on the upper side of the card reader.

[0042] According to another aspect of the present disclosure, a computer device is also provided, the computer device comprising: a processor adapted to implement various instructions and a storage device storing a plurality of instructions adapted to be loaded by the processor and executed any of the above-described passive near-field communication methods.

[0043] According to another aspect of the present disclosure, there is also a computer-readable storage medium storing a computer program for performing any of the above-described passive near-field communication methods.

[0044] According to another aspect of the present disclosure, there is also a computer program product comprising a computer program that, when executed by a processor, implements any of the above-described passive near-field communication methods.

[0045] The technical solutions of this disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0046] The following figures are intended only to illustrate and explain this disclosure and do not limit the scope of this disclosure. Wherein:

[0047] Figure 1 This is a structural diagram of a passive near-field communication device according to an embodiment of the present disclosure; and,

[0048] Figure 2 This is a schematic diagram of the coil structure of a passive near-field communication device according to an optional embodiment of the present disclosure; and,

[0049] Figure 3 This is a flowchart of a passive near-field communication method according to embodiments of the present disclosure; and,

[0050] Figure 4 This is a structural diagram of a passive near-field communication device according to an embodiment of the present disclosure; and,

[0051] Figure 5 This is a schematic diagram of the structure of a computer device according to an embodiment of this disclosure. Detailed Implementation

[0052] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become clearer and more apparent.

[0053] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0054] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0055] To better illustrate the embodiments of the present invention, the technical terms involved in the embodiments of the present invention are explained as follows:

[0056] NFC: A short-range, high-frequency radio communication technology.

[0057] NFC Active Mode: In active mode, the NFC terminal can act as a card reader, emitting radio frequency fields to identify and read / write information from passive NFC devices.

[0058] NFC Passive Mode (Card Emulation): In this mode, the NFC-enabled terminal is simulated as a card, which only passively responds to the radio frequency field emitted by other devices and has its information read / written.

[0059] LPCD (Low Power Card Detection) mode: When a mobile phone detects an NFC slave device, it will enter a low power mode after a certain period of time to save power. Card detection will also enter LPCD mode.

[0060] Normal card detection mode: To improve NFC speed and success rate, the phone will maintain full-power card detection for a period of time after unlocking, which is the normal card detection mode. Both the LPCD and normal detection modes mentioned above use a 13.56MHz sine wave emitted by the phone, differing only in transmission time and amplitude, and energy is coupled through a coil.

[0061] This embodiment provides a passive near-field communication device. Figure 1 This is a structural diagram of a passive near-field communication device according to an embodiment of the present disclosure, such as... Figure 1 As shown, it includes:

[0062] Wake up the tuning coil and the communication antenna coil.

[0063] The aforementioned wake-up tuning coil is a bare coil, and the resonant point of the aforementioned wake-up tuning coil is the same as the carrier frequency band of the card reader.

[0064] The bare coil can be an LC oscillating circuit without an NFC chip connected in series. The aforementioned card reader can be a mobile phone with NFC functionality.

[0065] An NFC chip is connected in series in the aforementioned communication antenna coil and tuned to the carrier frequency band of the aforementioned card reader.

[0066] The resonant point of the aforementioned wake-up tuning coil and the carrier frequency band of the card reader can be 13.56MHz.

[0067] The aforementioned wake-up tuning coil is used to couple with the antenna of the aforementioned card reader when the antenna of the aforementioned card reader is close, thereby deactivating the low-power card detection mode of the aforementioned card reader.

[0068] Once the low-power card detection mode of the aforementioned card reader is deactivated, it can enter the full-power card detection mode.

[0069] The card reader can approach the aforementioned wake-up tuning coil in a low-power card detection mode to induce the wake-up tuning coil to generate an induced magnetic field, thereby waking up the card reader in full-power card detection mode.

[0070] The aforementioned communication antenna coil is used to communicate with the aforementioned card reader in the full-power card detection mode of the aforementioned card reader.

[0071] The communication antenna coil can be modulated by the NFC chip to generate load modulation on the communication antenna coil, thereby completing communication with the card reader.

[0072] In this embodiment, the wake-up tuning coil is a bare coil, and its resonant point is the same as the carrier frequency band of the card reader. An NFC chip is connected in series in the communication antenna coil, and it is tuned to the carrier frequency band of the card reader. The wake-up tuning coil is used to couple with the antenna of the card reader when the antenna is close, thereby deactivating the low-power card detection mode of the card reader. The communication antenna coil is used to communicate with the card reader in its full-power card detection mode. This solves the technical problem in related technologies where NFC payment devices cannot complete payments without power. By waking up the card reader in low-power card detection mode using the wake-up tuning coil of the bare coil in the passive near-field communication device, and then communicating with the card reader in full power mode via the communication antenna coil, payment can be completed without power. Simultaneously, the coupling effect on the low-power mode card reader is improved.

[0073] In one exemplary embodiment, the wake-up tuning coil includes a first wake-up tuning coil.

[0074] The first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in their respective planes, and the induced magnetic fields within the coils overlap.

[0075] Preferably, the first wake-up tuning coil and the communication antenna coil can be arranged in a parallel, embedded manner in the passive near-field communication device.

[0076] Through the above embodiments, the first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in their respective planes, and the induced magnetic fields within the coils overlap, so that the passive near-field communication device can immediately communicate with the card reader device upon waking it up. At the same time, it can also achieve the technical effect of saving space.

[0077] In one exemplary embodiment, the first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device and is used to couple with the antenna in the middle or lower half of the card reader device.

[0078] For example, the aforementioned card reader can be a mainstream Android phone, and this type of card reader typically places the antenna in the middle or lower half of the device.

[0079] In the above embodiments, the first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device for coupling with the antenna in the middle or lower half of the card reader, thereby improving the convenience of coupling the passive near-field communication device with mainstream card readers.

[0080] In one exemplary embodiment, the first wake-up tuning coil is rectangular or oval in shape and is used to couple with the rectangular or oval antenna of the card reader.

[0081] For example, the aforementioned card reader can be an Android phone, and this type of card reader typically has a rectangular or oval antenna.

[0082] In the above embodiments, the first wake-up tuning coil is shaped as a rectangle or a flat circle, which is used to couple with the rectangular or flat circle antenna of the card reader, thereby improving the coupling effect between the passive near-field communication device and the mainstream card reader.

[0083] In one exemplary embodiment, the wake-up tuning coil includes a second wake-up tuning coil.

[0084] The aforementioned second wake-up tuning coil is located on the upper side of the aforementioned passive near-field communication device and is used to couple with the antenna on the upper side of the aforementioned card reader device.

[0085] For example, the aforementioned card reader could be an iOS phone, and this type of card reader typically places the antenna on the top side of the device.

[0086] In the above embodiments, the second wake-up tuning coil is located on the upper side of the passive near-field communication device for coupling with the antenna on the upper side of the card reader, thereby improving the convenience of coupling the passive near-field communication device with an iOS system type card reader.

[0087] In one exemplary embodiment, the second wake-up tuning coil is strip-shaped and is used to couple with the strip antenna on the upper side of the card reader device.

[0088] For example, the aforementioned card reader could be an iOS phone, and this type of card reader typically has a strip-shaped antenna.

[0089] In the above embodiments, the first wake-up tuning coil is shaped like a strip for coupling with the strip antenna of the card reader, thereby improving the coupling effect between the passive near-field communication device and the iOS system type card reader.

[0090] Figure 2 This is a schematic diagram of the coil structure of a passive near-field communication device according to an optional embodiment of this disclosure, as shown below. Figure 2 As shown, it includes: a first wake-up tuning coil 201, a second wake-up tuning coil 202, and a communication antenna coil 203.

[0091] The rectangular second wake-up tuning coil 202 and the communication antenna coil 203 are embedded and arranged in parallel around the lower half of the passive near-field communication device. The strip-shaped first wake-up tuning coil 201 is arranged on the upper side of the passive near-field communication device.

[0092] According to another aspect of the embodiments of this disclosure, a passive near-field communication method is also provided. Figure 3 This is a flowchart of a passive near-field communication method according to an embodiment of the present disclosure, such as... Figure 3 As shown, it includes:

[0093] Step 302: Receive the low-power card detection carrier of the card reader by waking up the tuning coil. The resonant point of the waking up tuning coil is the same as the carrier frequency band of the card reader.

[0094] The bare coil can be an LC oscillating circuit without an NFC chip connected in series. The aforementioned card reader can be a mobile phone with NFC functionality.

[0095] Step 304: Upon receiving a low-power card detection carrier from the card reader, the wake-up tuning coil generates a wake-up induction magnetic field, which is used to deactivate the low-power card detection mode of the card reader.

[0096] The resonant point of the aforementioned wake-up tuning coil and the carrier frequency band of the card reader can be 13.56MHz. Once the low-power card detection mode of the card reader is deactivated, it can enter the full-power card detection mode.

[0097] Step 306: Receive the full-power card detection carrier of the card reader through the communication antenna coil. The communication antenna coil contains an NFC chip connected in series and is tuned to the carrier frequency band of the card reader.

[0098] The card reader can approach the aforementioned wake-up tuning coil in a low-power card detection mode to induce the wake-up tuning coil to generate an induced magnetic field, thereby waking up the card reader in full-power card detection mode.

[0099] Step 308: Upon receiving a full-power card detection carrier from the card reader, the communication antenna coil generates a communication induction magnetic field and communicates with the card reader based on the communication induction magnetic field.

[0100] The communication antenna coil can be modulated by the NFC chip to generate load modulation on the communication antenna coil, thereby completing communication with the card reader.

[0101] Through steps 302 to 308 above, a low-power card detection carrier from the card reader is received via a wake-up tuning coil, the resonant point of which is the same as the carrier frequency band of the card reader. Upon receiving the low-power card detection carrier from the card reader, the wake-up tuning coil generates a wake-up induction magnetic field, which is used to deactivate the low-power card detection mode of the card reader. A full-power card detection carrier from the card reader is received via a communication antenna coil, which contains an NFC chip and is tuned to the carrier frequency band of the card reader. Upon receiving the full-power card detection carrier from the card reader, the communication antenna coil generates a communication induction magnetic field and communicates with the card reader based on this magnetic field. This solves the technical problem in related technologies where NFC payment devices cannot complete payments without power. By waking up the card reader in low-power card detection mode using a wake-up tuning coil of a bare coil in the passive near-field communication device, and then communicating with the card reader at full power via the communication antenna coil, payment can be completed without power, while also improving the coupling effect on the low-power mode card reader.

[0102] In one exemplary embodiment, receiving a low-power card detection carrier from a card reader by waking up the tuning coil includes:

[0103] The low-power card detection carrier of the card reader is received by the first wake-up tuning coil. The first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in the plane they are in, and the induced magnetic fields in the coil overlap.

[0104] Preferably, the first wake-up tuning coil and the communication antenna coil can be arranged in a parallel, embedded manner in the passive near-field communication device.

[0105] Through the above embodiments, the first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in their respective planes, and the induced magnetic fields within the coils overlap, so that the passive near-field communication device can immediately communicate with the card reader device upon waking it up. At the same time, it can also achieve the technical effect of saving space.

[0106] In one exemplary embodiment, the first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device and is used to couple with the antenna in the middle or lower half of the card reader device.

[0107] For example, the aforementioned card reader can be a mainstream Android phone, and this type of card reader typically places the antenna in the middle or lower half of the device.

[0108] In the above embodiments, the first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device for coupling with the antenna in the middle or lower half of the card reader, thereby improving the convenience of coupling the passive near-field communication device with mainstream card readers.

[0109] In one exemplary embodiment, the first wake-up tuning coil described above has the same shape as the rectangular or oval antenna of the card reader device described above.

[0110] For example, the aforementioned card reader can be an Android phone, and this type of card reader typically has a rectangular or oval antenna.

[0111] In the above embodiments, the first wake-up tuning coil is shaped as a rectangle or a flat circle, which is used to couple with the rectangular or flat circle antenna of the card reader, thereby improving the coupling effect between the passive near-field communication device and the mainstream card reader.

[0112] In one exemplary embodiment, receiving a low-power card detection carrier from a card reader by waking up the tuning coil includes:

[0113] The second wake-up tuning coil receives the low-power card detection carrier transmitted by the antenna on the upper side of the card reader device. The second wake-up tuning coil is located on the upper side of the passive near-field communication device.

[0114] For example, the aforementioned card reader could be an iOS phone, and this type of card reader typically places the antenna on the top side of the device.

[0115] In the above embodiments, the second wake-up tuning coil is located on the upper side of the passive near-field communication device for coupling with the antenna on the upper side of the card reader, thereby improving the convenience of coupling the passive near-field communication device with an iOS system type card reader.

[0116] In one exemplary embodiment, the second wake-up tuning coil has the same shape as the strip antenna on the upper side of the card reader.

[0117] For example, the aforementioned card reader could be an iOS phone, and this type of card reader typically has a strip-shaped antenna.

[0118] In the above embodiments, the first wake-up tuning coil is shaped like a strip for coupling with the strip antenna of the card reader, thereby improving the coupling effect between the passive near-field communication device and the iOS system type card reader.

[0119] According to another aspect of the embodiments of this disclosure, a passive near-field communication device is also provided. Figure 4 This is a structural diagram of a passive near-field communication device according to an embodiment of the present disclosure, such as... Figure 4As shown, it includes:

[0120] The first receiving module 401 is used to receive the low-power card detection carrier of the card reader through a wake-up tuning coil, wherein the resonant point of the wake-up tuning coil is the same as the carrier frequency band of the card reader.

[0121] The bare coil can be an LC oscillating circuit without an NFC chip connected in series. The aforementioned card reader can be a mobile phone with NFC functionality.

[0122] The wake-up module 402 is used to generate a wake-up induction magnetic field by the wake-up tuning coil when a low-power card detection carrier of the card reader is received. The induction magnetic field is used to deactivate the low-power card detection mode of the card reader.

[0123] The resonant point of the aforementioned wake-up tuning coil and the carrier frequency band of the card reader can be 13.56MHz. Once the low-power card detection mode of the card reader is deactivated, it can enter the full-power card detection mode.

[0124] The second receiving module 403 is used to receive the full-power card detection carrier of the card reader through the communication antenna coil. The communication antenna coil contains an NFC chip and is tuned to the carrier frequency band of the card reader.

[0125] The card reader can approach the aforementioned wake-up tuning coil in a low-power card detection mode to induce the wake-up tuning coil to generate an induced magnetic field, thereby waking up the card reader in full-power card detection mode.

[0126] The communication module 404 is used to generate a communication induction magnetic field in the communication antenna coil when the full-power card detection carrier of the card reader is received, and to communicate with the card reader based on the communication induction magnetic field.

[0127] The communication antenna coil can be modulated by the NFC chip to generate load modulation on the communication antenna coil, thereby completing communication with the card reader.

[0128] In this embodiment, the wake-up tuning coil is a bare coil, and its resonant point is the same as the carrier frequency band of the card reader. An NFC chip is connected in series in the communication antenna coil, and it is tuned to the carrier frequency band of the card reader. The wake-up tuning coil is used to couple with the antenna of the card reader when the antenna is close, thereby deactivating the low-power card detection mode of the card reader. The communication antenna coil is used to communicate with the card reader in its full-power card detection mode. This solves the technical problem in related technologies where NFC payment devices cannot complete payments without power. By waking up the card reader in low-power card detection mode using the wake-up tuning coil of the bare coil in the passive near-field communication device, and then communicating with the card reader in full power mode via the communication antenna coil, payment can be completed without power. Simultaneously, the coupling effect on the low-power mode card reader is improved.

[0129] In one exemplary embodiment, the first receiving module described above includes:

[0130] The first receiving unit is used to receive the low-power card detection carrier of the card reader through the first wake-up tuning coil. The first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in the plane they are in, and the induced magnetic fields within the coil overlap.

[0131] Preferably, the first wake-up tuning coil and the communication antenna coil can be arranged in a parallel, embedded manner in the passive near-field communication device.

[0132] Through the above embodiments, the first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in their respective planes, and the induced magnetic fields within the coils overlap, so that the passive near-field communication device can immediately communicate with the card reader device upon waking it up. At the same time, it can also achieve the technical effect of saving space.

[0133] In one exemplary embodiment, the first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device and is used to couple with the antenna in the middle or lower half of the card reader device.

[0134] For example, the aforementioned card reader can be a mainstream Android phone, and this type of card reader typically places the antenna in the middle or lower half of the device.

[0135] In the above embodiments, the first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device for coupling with the antenna in the middle or lower half of the card reader, thereby improving the convenience of coupling the passive near-field communication device with mainstream card readers.

[0136] In one exemplary embodiment, the first wake-up tuning coil described above has the same shape as the rectangular or oval antenna of the card reader device described above.

[0137] For example, the aforementioned card reader can be an Android phone, and this type of card reader typically has a rectangular or oval antenna.

[0138] In the above embodiments, the first wake-up tuning coil is shaped as a rectangle or a flat circle, which is used to couple with the rectangular or flat circle antenna of the card reader, thereby improving the coupling effect between the passive near-field communication device and the mainstream card reader.

[0139] In one exemplary embodiment, the first receiving module described above includes:

[0140] The second receiving unit is used to receive the low-power card detection carrier transmitted by the antenna on the upper side of the card reader via the second wake-up tuning coil, wherein the second wake-up tuning coil is located on the upper side of the passive near-field communication device.

[0141] For example, the aforementioned card reader could be an iOS phone, and this type of card reader typically places the antenna on the top side of the device.

[0142] In the above embodiments, the second wake-up tuning coil is located on the upper side of the passive near-field communication device for coupling with the antenna on the upper side of the card reader, thereby improving the convenience of coupling the passive near-field communication device with an iOS system type card reader.

[0143] In one exemplary embodiment, the second wake-up tuning coil has the same shape as the strip antenna on the upper side of the card reader.

[0144] For example, the aforementioned card reader could be an iOS phone, and this type of card reader typically has a strip-shaped antenna.

[0145] In the above embodiments, the first wake-up tuning coil is shaped like a strip for coupling with the strip antenna of the card reader, thereby improving the coupling effect between the passive near-field communication device and the iOS system type card reader.

[0146] This disclosure also provides a computer device. Figure 5 This is a schematic diagram of a computer device in an embodiment of the present disclosure. The computer device is capable of implementing all steps of the passive near-field communication method in the above embodiments. Specifically, the computer device includes the following components:

[0147] Processor 501, memory 502, communications interface 503, and communications bus 504.

[0148] The processor 301, memory 302, and communication interface 503 communicate with each other via the communication bus 504. The communication interface 503 is used to realize information transmission between related devices.

[0149] The processor 501 is used to call the computer program in the memory 502. When the processor executes the computer program, it implements the passive near-field communication method in the above embodiment.

[0150] Optionally, in an embodiment, when the above-described computer program instructions are executed by the processor, the following steps are implemented:

[0151] Step S1: Receive the low-power card detection carrier of the card reader by waking up the tuning coil. The resonant point of the waking up tuning coil is the same as the carrier frequency band of the card reader.

[0152] In step S2, upon receiving a low-power card detection carrier from the card reader, the wake-up tuning coil generates a wake-up induction magnetic field, which is used to deactivate the low-power card detection mode of the card reader.

[0153] Step S3: Receive the full-power card detection carrier of the card reader through the communication antenna coil. The communication antenna coil contains an NFC chip and is tuned to the carrier frequency band of the card reader.

[0154] In step S4, upon receiving a full-power card detection carrier from the card reader, the communication antenna coil generates a communication induction magnetic field and communicates with the card reader based on the communication induction magnetic field.

[0155] This disclosure also provides a computer-readable storage medium storing a computer program that, in response to the computer program being executed by a processor, performs the operation of the passive near-field communication method described above.

[0156] This disclosure also provides a computer program product, which includes a computer program that, when executed by a processor, implements the aforementioned passive near-field communication method.

[0157] While this disclosure provides the method operation steps described in the embodiments or flowcharts, more or fewer operation steps may be included based on conventional or non-inventive labor. The order of steps listed in the embodiments is merely one possible execution order among many and does not represent the only execution order. In actual device or client product execution, the method can be executed sequentially as shown in the embodiments or drawings, or in parallel (e.g., using parallel processors or multi-threaded processing).

[0158] Those skilled in the art will understand that the embodiments of this specification can be provided as methods, apparatus (systems), or computer program products. Therefore, the embodiments of this specification can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0159] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0160] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0161] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0162] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments. In this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0163] It should be noted that, unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other. This disclosure is not limited to any single aspect, nor to any single embodiment, nor to any combination and / or substitution of these aspects and / or embodiments. Moreover, each aspect and / or embodiment of this disclosure can be used alone or in combination with one or more other aspects and / or embodiments thereof.

[0164] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and not to limit them. Although this disclosure 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 or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure, and all should be covered within the scope of the claims and specification of this disclosure.

Claims

1. A passive near-field communication device, characterized in that, include: Wake up the tuning coil and the communication antenna coil; The resonant point of the wake-up tuning coil is the same as the carrier frequency band of the card reader; The wake-up tuning coil is used to couple with the antenna of the card reader when the antenna of the card reader is close to it, generate a wake-up induction magnetic field, and release the low-power card detection mode of the card reader through the wake-up induction magnetic field; The communication antenna coil is used to communicate with the card reader in the full-power card detection mode of the card reader.

2. The passive near-field communication device according to claim 1, characterized in that, The wake-up tuning coil includes: a first wake-up tuning coil; The first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in the same plane, and the induced magnetic fields within the coils overlap.

3. The passive near-field communication device according to claim 2, characterized in that, The first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device and is used to couple with the antenna in the middle or lower half of the card reader device.

4. The passive near-field communication device according to any one of claims 2 to 3, characterized in that, The first wake-up tuning coil is rectangular or oval in shape and is used to couple with the rectangular or oval antenna of the card reader.

5. The passive near-field communication device according to any one of claims 1 to 3, characterized in that, The wake-up tuning coil includes: a second wake-up tuning coil; The second wake-up tuning coil is located on the upper side of the passive near-field communication device and is used to couple with the antenna on the upper side of the card reader device.

6. The passive near-field communication device according to claim 5, characterized in that, The second wake-up tuning coil is strip-shaped and is used to couple with the strip antenna on the upper side of the card reader.

7. A passive near-field communication method, characterized in that, include: The low-power card detection carrier of the card reader is received by waking up the tuning coil, and the resonant point of the waking up tuning coil is the same as the carrier frequency band of the card reader. Upon receiving a low-power card detection carrier from the card reader, the wake-up tuning coil generates a wake-up induction magnetic field, which is used to deactivate the low-power card detection mode of the card reader. The card reader receives the full-power card detection carrier from the card reader via the communication antenna coil. Upon receiving a full-power card detection carrier from the card reader, the communication antenna coil generates a communication induction magnetic field and communicates with the card reader based on the communication induction magnetic field.

8. The passive near-field communication method according to claim 7, characterized in that, Receive the low-power card detection carrier from the card reader by waking up the tuning coil, including: The low-power card detection carrier of the card reader is received by the first wake-up tuning coil. The first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in the same plane, and the induced magnetic fields within the coils overlap.

9. The passive near-field communication method according to claim 8, characterized in that, The first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device and is used to couple with the antenna in the middle or lower half of the card reader device.

10. The passive near-field communication method according to any one of claims 8 to 9, characterized in that, The first wake-up tuning coil has the same shape as the rectangular or oval antenna of the card reader.

11. The passive near-field communication method according to any one of claims 7 to 9, characterized in that, Receive the low-power card detection carrier from the card reader by waking up the tuning coil, including: The low-power card detection carrier transmitted by the antenna on the upper side of the card reader is received by the second wake-up tuning coil, which is located on the upper side of the passive near-field communication device.

12. The passive near-field communication method according to claim 11, characterized in that, The second wake-up tuning coil has the same shape as the strip antenna on the upper side of the card reader.

13. A passive near-field communication device, characterized in that, include: The first receiving module is used to receive the low-power card detection carrier of the card reader through a wake-up tuning coil, wherein the resonant point of the wake-up tuning coil is the same as the carrier frequency band of the card reader. A wake-up module is used to generate a wake-up induction magnetic field by the wake-up tuning coil when a low-power card detection carrier is received from the card reader. The induction magnetic field is used to deactivate the low-power card detection mode of the card reader. The second receiving module is used to receive the full-power card detection carrier of the card reader through the communication antenna coil; The communication module is used to generate a communication induction magnetic field by the communication antenna coil when the card reader receives a full-power card detection carrier from the card reader, and to communicate with the card reader based on the communication induction magnetic field.

14. The passive near-field communication device according to claim 13, characterized in that, The first receiving module includes: The first receiving unit is used to receive the low-power card detection carrier of the card reader through the first wake-up tuning coil, wherein the first wake-up tuning coil and the communication antenna coil are coplanar or parallel to each other in the plane they are in, and the induced magnetic fields within the coils overlap.

15. The passive near-field communication device according to claim 14, characterized in that, The first wake-up tuning coil is located in the middle or lower half of the passive near-field communication device and is used to couple with the antenna in the middle or lower half of the card reader device.

16. The passive near-field communication device according to any one of claims 14 to 15, characterized in that, The first wake-up tuning coil has the same shape as the rectangular or oval antenna of the card reader.

17. The passive near-field communication device according to any one of claims 13 to 15, characterized in that, The first receiving module includes: The second receiving unit is used to receive a low-power card detection carrier transmitted by the antenna on the upper side of the card reader via a second wake-up tuning coil, wherein the second wake-up tuning coil is located on the upper side of the passive near-field communication device.

18. The passive near-field communication device according to claim 17, characterized in that, The second wake-up tuning coil has the same shape as the strip antenna on the upper side of the card reader.

19. A computer device, characterized in that, The computer device includes: a processor adapted to implement various instructions and a storage device, the storage device storing multiple instructions adapted to be loaded by the processor and executed by the passive near-field communication method according to any one of claims 7 to 12.

20. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program for performing the passive near-field communication method according to any one of claims 7 to 12.

21. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the passive near-field communication method according to any one of claims 7 to 12.

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