Electronic device, communication method using NFC, system, and computer program

Abstract

To provide an electronic device, a communication method using NFC (Near Field Communication), and a system that increase a range and sensitivity sensed by a card reader.SOLUTION: An electronic device includes an NFC module. The NFC module includes a plurality of NFC tags with the same contents, and antennas of any two NFC tags do not completely overlap, thereby increasing a range and sensitivity in which the electronic device is sensed by a card reader, making it easier for the card reader to sense and read the NFC tags in the electronic device. This can improve the success rate and efficiency of sensing the NFC tags in the electronic device, and further improve communication efficiency and reliability when the electronic device, a communication method using NFC, and a system are used in different scenarios.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present specification relates to the field of communication technology, and in particular to an electronic device, a method and system for communication using NFC. [Background technology]

[0002] Near field communication is an emerging technology, and devices using near field communication technology (such as mobile phones) can exchange data when they are in close proximity to each other. For example, a card reader can sense a tag in a tag card device and read the tag data.

[0003] Since the communication distance supported by near field communication is relatively short, the success rate of a card reader being able to read a card is relatively low, and the response time is relatively long.

[0004] It should be noted that the content of the above related art is merely information personally known to the inventors, and the above information does not represent anything that has already entered the public field prior to the filing date of this disclosure, nor does it represent anything that can be considered prior art to the present disclosure. Summary of the Invention [Problem to be solved by the invention]

[0005] The present disclosure provides an electronic device, a method and system for communication using NFC to avoid the above technical problems. [Means for solving the problem]

[0006] According to a first aspect, the present disclosure provides an electronic device, the electronic device including an NFC module, the NFC module including a plurality of NFC tags with identical content, wherein the antennas of any two NFC tags do not completely overlap.

[0007] In some embodiments, different NFC tags among the plurality of NFC tags with the same content have different communication protocols.

[0008] In some embodiments, the antennas of any two NFC tags have no overlapping area.

[0009] In some embodiments, the antennas of each of the plurality of identical NFC tags are arranged in parallel to form an antenna array.

[0010] In some embodiments, the number of the plurality of NFC tags with the same content is a preset sensing range of the electronic device; a predetermined sensing range of a card reading device that communicates with the electronic device based on NFC; and information on the detuning effect that the NFC module has on the card reading device.

[0011] In some embodiments, the antennas of the plurality of identical NFC tags are located in pre-defined antenna areas of the electronic device.

[0012] According to a second aspect, the present disclosure provides a communication method using NFC, the communication method being used in the electronic device according to any one of the above embodiments, and the communication includes: determining type attributes of the NFC tags with the same content when receiving a current round of card search messages sent from the card reading device, the type attributes being used to indicate whether the NFC tags with the same content have been sensed by the card reading device, and including a sensed type and a non-sensed type; Responding to a card search message of the current round according to the sensing type, the response being used to read tag data.

[0013] In some embodiments, among a plurality of NFC tags having the same content, different NFC tags have different communication protocols; The step of determining the type attribute of the plurality of NFC tags having the same content includes: determining a type attribute of a current NFC tag, where the current NFC tag is any NFC tag among the plurality of NFC tags with identical content; Responding to a card search message of the current round according to the sensing type, the response being used to read tag data, If the type attribute of the current NFC tag is the sensing type, responding to the card search message of the current round based on the current NFC tag, wherein the response is used to read tag data of the current NFC tag.

[0014] In some embodiments, the communication protocols of the plurality of NFC tags with the same content are the same; The step of determining the type attribute of the plurality of NFC tags having the same content includes: obtaining a type attribute corresponding to each NFC tag among the plurality of NFC tags having the same content; Responding to a card search message of the current round according to the sensing type, the response being used to read tag data, Responding to the card search message of the current round according to each sensing type, the response being used to read tag data of the target NFC tag, where the target NFC tag is determined by the card reading device from among NFC tags corresponding to each sensing type.

[0015] According to a third aspect, the present disclosure provides a communication system using NFC, the communication system including a card reading device and an electronic device according to any one of the above embodiments, wherein the card reading device is a device that communicates with the electronic device based on NFC; The card reading device is used to send a polling card search message to the electronic device; The electronic device executes the communication method according to any one of the above embodiments based on the card search message of the current round, and responds to the card reading device, where the polling card search message includes the card search message of the current round; The card reading device is further used to read tag data in the electronic device based on the response. [Effects of the Invention]

[0016] As can be seen from the above technical solutions, the electronic device, the NFC communication method and system disclosed herein include an electronic device including an NFC module, the NFC module including multiple NFC tags with the same content, and the antennas of any two NFC tags not completely overlapping, which can increase the range and sensitivity of the electronic device to be detected by a card reading device, making it easier for the card reading device to detect and read the NFC tag in the electronic device, thereby improving the success rate and efficiency of detecting the NFC tag in the electronic device, and further improving the communication efficiency and reliability when the electronic device, the NFC communication method and system are used in different scenarios.

[0017] Other functions of the electronic device, the NFC communication method, and the system according to the present specification are partially listed in the following description. According to the description, the contents introduced by the following figures and examples will be clear to those skilled in the art. The inventive aspects of the electronic device, the NFC communication method, and the system according to the present specification can be fully understood by practicing or using the methods, devices, and combinations described in the following detailed examples. [Brief explanation of the drawings]

[0018] In order to more clearly explain the technical solutions in the embodiments of this specification, the following briefly introduces the drawings that need to be used in the description of the embodiments. It is obvious that the drawings in the following description are only some embodiments of this specification, and those skilled in the art can also derive other drawings based on these drawings without exerting any creative efforts. [Figure 1] 1 is a schematic diagram of a scenario based on an NFC communication method according to one embodiment of the present disclosure; [Figure 2] FIG. 1 is a schematic diagram of a scenario based on an NFC communication method according to another embodiment of the present disclosure. [Figure 3] FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the present disclosure. [Figure 4] 1 is a schematic diagram of antenna deployment of two identical NFC tags according to one embodiment of the present disclosure. FIG. [Figure 5] FIG. 10 is a schematic diagram of antenna deployments of two identical NFC tags according to another embodiment of the present disclosure. [Figure 6] FIG. 1 is a schematic diagram of a polling card search according to one embodiment of the present disclosure. [Figure 7] FIG. 10 is a schematic diagram of a polling card search according to another embodiment of the present disclosure. [Figure 8] FIG. 2 is a schematic diagram of an antenna area according to one embodiment of the present disclosure. [Figure 9] FIG. 10 is a schematic diagram of an antenna area of ​​another embodiment of the present disclosure. [Figure 10] 1 is a schematic diagram based on an NFC communication method according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0019] Reference will now be made in detail to illustrative embodiments, examples of which are illustrated in the drawings. When the following description refers to the drawings, like numerals in different drawings represent the same or similar elements unless otherwise noted. The embodiments described in the following illustrative examples do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0020] It should be understood that the terms "including" and "having" and any variations thereof in the embodiments of the present disclosure are intended to cover "including" in a non-exclusive manner, e.g., a product or device comprising a series of assemblies is not necessarily limited to those assemblies expressly listed, but may include other assemblies not expressly listed or that are inherent to those products or devices.

[0021] The term "and / or" in the embodiments of the present disclosure describes a relation between related objects and indicates that three relations may exist, for example, A and / or B can represent three cases: A alone, a combination of A and B, and B alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship.

[0022] In the embodiments of the present disclosure, the term "plurality" means two or more, and other quantifiers are similar thereto.

[0023] The terms "first," "second," "third," etc. in this disclosure are used to distinguish between similar or like objects or entities and do not necessarily imply a specific order or sequence of events unless otherwise indicated. It should be understood that terms so used are interchangeable where appropriate, and that, for example, embodiments of the present disclosure may be performed according to orders other than those given in the illustrations or descriptions thereof.

[0024] The term "unit / module" as used in this disclosure refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic or combination of hardware and / or software code that is capable of performing the function associated with that element.

[0025] To facilitate understanding of the present disclosure by the reader, at least some terms in the present disclosure will currently be interpreted as follows.

[0026] Radio Frequency Identification (RFID) is a contactless automatic identification technology that utilizes the transmission characteristics of radio frequency signals and their spatial coupling to realize automatic identification of stationary or moving objects. For example, its principle is to achieve the purpose of target identification through contactless data communication between a reader and a tag. RFID has a wide range of applications, including animal wafers, automobile wafer anti-theft devices, access control, parking control, production line automation, and material management.

[0027] Near Field Communication (NFC) is a new technology that allows devices using NFC (such as mobile phones) to exchange data when they are placed close to each other. NFC technology has evolved through the integration of RFID and interconnection technology, and by integrating the functions of a sensory card reader, sensory card, and point-to-point communication on a single chip, it enables applications such as mobile payment, electronic tickets, access control, mobile identification, and anti-counterfeiting using mobile devices.

[0028] Here, mobile payment refers to electronic money payments made by mobile clients using electronic products such as mobile terminals (e.g., mobile phones), which effectively connect the Internet, terminal devices, and financial institutions to form a new type of payment system. Mobile payment can not only be used to make payments, but can also be used to pay living expenses such as telephone charges, gas, water, and electricity bills. Mobile payment has opened up a new payment method, and electronic money has begun to become popular.

[0029] A mobile terminal or mobile communication terminal is a computing device that can be used while moving, and broadly includes mobile phones, laptops, tablet computers, point of sale (POS) terminals, and even in-vehicle computers.

[0030] An electronic wallet is a payment tool commonly used in e-commerce shopping activities. Electronic money, such as electronic cash, electronic coins, and electronic credit cards, is stored in the electronic wallet.

[0031] Wireless network communication technology (Wi-Fi), also known as mobile hotspot, is a wireless local area network and wireless network transmission technology.

[0032] To facilitate the reader's understanding of the present disclosure, the application scenario of the present disclosure is currently described as follows.

[0033] The present disclosure provides an electronic device, a method and system for communication using NFC, and the electronic device is an NFC-enabled electronic device, such as a mobile terminal. Accordingly, as can be seen in conjunction with the above interpretation of the term "near field wireless communication," the electronic device, the method and system for communication using NFC of the present disclosure may be used in scenarios such as mobile payment, electronic tickets, access control, mobile identity verification, and anti-counterfeiting. Take the scenario in which the electronic device of the present disclosure is used for mobile payment as an example.

[0034] The electronic device may be an NFC payment device (which may include forward scan and reverse scan deposit devices). Figure 1 shows the flow of using an NFC reverse scan deposit device with a mobile phone. As shown in Figure 1, when a mobile phone is close to the NFC reverse scan deposit device, it reads the tag content in the NFC reverse scan device and pops up a payment page. The mobile phone obtains the corresponding payment information and completes the payment.

[0035] The electronic device can be an NFC code card that replaces the original QR code (e.g., meal ordering code). Figure 2 shows the flow of bringing a mobile phone close to an NFC code card to open the meal ordering applet. As shown in Figure 2, first unlock the mobile phone, and then touch the NFC code card, and the mobile phone can automatically jump to the corresponding meal ordering applet.

[0036] It should be understood that the above mobile payment scenario is only one of multiple usage scenarios according to the present specification, and the electronic device, NFC communication method and system according to the present specification can be used not only in the mobile payment scenario but also in other NFC-enabled scenarios, such as electronic tickets, access control, mobile identity verification, anti-counterfeiting, etc. It should be understood by those skilled in the art that the use of the electronic device described herein in other usage scenarios is also within the scope of protection of the present specification.

[0037] To facilitate the reader's understanding of the present disclosure, the relevant art of the present disclosure is currently described as follows.

[0038] NFC technology allows two electronic devices to communicate within a relatively short distance (e.g., a few centimeters), and with the continuous maturation of NFC technology, more and more mobile terminals (e.g., mobile phones and POS machines) are also integrating NFC functions.

[0039] For example, NFC technology was first used in smart cards, where a card reader was used to read the information stored on the smart card to complete mobile payment or identity authentication, etc. With the continuous maturation of technology, more and more devices (e.g., mobile phones) are integrating NFC functions, and generally, mobile phones are equipped with two NFC modes: card reader mode and card simulation mode.

[0040] When the mobile phone is in card reader mode, it can read tag information, which is commonly used for Bluetooth and Wi-Fi connection guidance. When the mobile phone is in card emulation mode, it can emulate a card, emulating a bank card or access control card, which can be used for mobile payment or access control by waving the mobile phone.

[0041] In the related art, the common mode of NFC in payment scenarios is that the POS machine is the card reader and the mobile phone or bank card is the (NFC) tag card (card), but in the present disclosure, it is also possible that the mobile phone is the card reader and the deposit machine / code card is the tag card.

[0042] When the NFC function of a mobile phone is turned on, the card reading function will be turned on by default when the mobile phone is unlocked. After reading the card information from the tag card device (such as a POS machine), the mobile phone will pop up an NFC recognition notification or directly display the payment page to complete the payment transaction.

[0043] Compared with the current trend of code scanning payment, the method of identifying NFC payment links with mobile phones can shorten the user's payment process and improve the user's payment experience, but there are many challenges when using mobile phones as card readers to read NFC payment links.

[0044] For example, compared to traditional card readers, mobile phones are battery-powered and very sensitive to power consumption. Therefore, when a mobile phone's screen is turned off, the card reading function is turned off. Most mobile phones will successfully read cards several times in a row after turning on the screen and unlocking, but then switch to low-power card detection (LPCD) mode. This creates a very tight space inside the mobile phone, making the size of the NFC antenna inside the mobile phone very small. In this mode, the degree of coupling between the NFC antenna inside the mobile phone and the card antenna significantly affects the card's detectability and detection time. From a user's perspective, when a mobile phone approaches a tag card device to read NFC data, the card reading success rate is relatively low and the response time is relatively long.

[0045] It should be noted that the content of the above related art is merely information known to the inventors personally, and does not represent that the above information has already entered the public field before the filing date of this disclosure, nor does it represent that it can be considered prior art for this disclosure.

[0046] In order to avoid at least one of the above problems, the present disclosure proposes a technical concept that has been creatively worked out to improve the success rate and efficiency of sensing NFC tags by installing multiple identical NFC tags on an electronic device and ensuring that the antennas of any two NFC tags do not completely overlap, thereby increasing the sensing range and sensitivity of the electronic device.

[0047] According to the above technical concept, the present disclosure provides an electronic device, which includes an NFC module, and the NFC module includes multiple NFC tags with the same content, and the antennas of any two NFC tags do not completely overlap.

[0048] Referring to Figure 3, Figure 3 is a schematic diagram of an electronic device according to an embodiment of the present disclosure. As shown in Figure 3, the electronic device includes an NFC module, which may include an NFC control module and n NFC tags, each of which is communicatively connected to the NFC control module, where n is an integer greater than 1, and the n NFC tags include NFC tag 1, NFC tag 2, through NFC tag n, as shown in Figure 3.

[0049] Here, the NFC control module may be connected to n NFC tags via a communication bus so as to be responsible for synchronizing NFC data in each NFC tag, controlling conflict prevention among the n NFC tags, synchronizing their states, and the like.

[0050] Each NFC tag includes an antenna, for example, the antenna of NFC tag 1 may be called antenna 1, the antenna of NFC tag 2 may be called antenna 2, and the antenna of NFC tag n may be called antenna n, where any two antennas among antenna 1, antenna 2 to antenna n do not completely overlap.

[0051] For example, any two antennas may include antenna 1 and antenna 2, and antenna 1 and antenna 2 may not completely overlap. For example, antenna 1 and antenna 2 may partially overlap, or antenna 1 and antenna 2 may not overlap.

[0052] In the above payment scenario, the electronic device is a POS machine and the card reader is a mobile phone. In this embodiment, multiple identical NFC tags are installed on the POS machine, and the antennas of any two NFC tags do not completely overlap. This increases the range and sensitivity of the POS machine to be detected by the mobile phone, making it easier for the mobile phone to detect and read the NFC tag on the POS machine. This improves the success rate and efficiency of detecting NFC tags on the POS machine, and further improves the efficiency and reliability of payment.

[0053] As can be seen from the above analysis, in some embodiments, any two antennas may partially overlap. As shown in Figure 4, any two antennas include Antenna 1 and Antenna 2, and Antenna 1 and Antenna 2 partially overlap.

[0054] In some other embodiments, any two antennas do not overlap.

[0055] In comparison, if any two antennas do not overlap, the area that each antenna can cover together can be made wider. In combination with the above example, this can greatly increase the range and sensitivity at which the POS is detected by a mobile phone, thereby further improving the success rate and efficiency at which NFC tags are detected by POS machines, thereby improving the efficiency and reliability of payments.

[0056] In some embodiments, the antennas of each of a plurality of identical NFC tags are arranged in parallel to form an antenna array.

[0057] Illustratively, in combination with the above example, when n is 2, that is, when the multiple NFC tags with the same content are two NFC tags with the same content, and the antennas of the two NFC tags with the same content include antenna 1 and antenna 2, as shown in FIG. 5, antenna 1 and antenna 2 are arranged in parallel to form an antenna array.

[0058] In some embodiments, different NFC tags among a plurality of NFC tags with the same content have different communication protocols.

[0059] Continuing with the above example and referring to FIG. 3, there is a one-to-one correspondence between NFC tags and communication protocols, for example, one NFC tag corresponds to one type of communication protocol.

[0060] For example, the current NFC supports four mainstream communication protocols, namely 14443 Type A, 14443 Type B, FeliCa, and 15693. In this case, n may be 4, and one NFC tag supports one of these four communication protocols, and each of the four NFC tags supports a different communication protocol.

[0061] Continuing with the example of the payment scenario above, when the mobile phone searches for a card, it may request polling of the four communication protocols in the above order. That is, when the mobile phone requests using a certain communication protocol, only the NFC tag in the POS machine that supports this protocol will respond, and other NFC tags will remain silent.

[0062] As shown in Figure 6, some mobile phones perform multiple rounds of card search when unlocking, and as shown in Figure 7, if the detection is successful, the mobile phone performs one round of card search.

[0063] In this embodiment, the multiple communication protocol solution increases the probability that the NFC tag will respond to the card removal device, and isolates the problem of different NFC tags using different communication protocols causing conflicts during the communication process, thereby improving the effectiveness and reliability of communication between electronic devices.

[0064] In some embodiments, the number of NFC tags with the same content is determined based on at least one of the following:

[0065] Method 1: Pre-set sensing range of electronic device.

[0066] Method 2: A preset sensing range of a card reader, which is a device that communicates with electronic devices based on NFC.

[0067] Method 3: Information on the detuning impact of NFC modules on card reading devices.

[0068] As can be appreciated, in combination with FIG. 3, the above three types of schemes are merely intended to exemplify possible pricing schemes for n and should not be understood as limitations on the pricing schemes for n or the value of n.

[0069] Now, continuing to combine the above example with a payment scenario as an example, we will describe these three methods as follows:

[0070] In Method 1, n may be determined based on a preset detection range of the POS machine, where the preset detection range may be determined based on demand, application scenario, history, experiment, etc., and is not limited to this embodiment.

[0071] For example, in a scenario where the preset sensing range is relatively large, n may be a relatively large value to ensure that the NFC tag is sensed within a relatively large range, and in a scenario where the preset sensing range is relatively small, n may be a relatively small value.

[0072] In Scheme 2, n may be determined based on the preset sensing range of the mobile phone; similarly, this embodiment is not limited to the preset sensing range, and may be determined based on, for example, the performance of the mobile phone.

[0073] Accordingly, in a scenario where the preset sensing range is relatively large, n may be a relatively small value because the sensing capability of the mobile phone is strong and the NFC tag can be sensed within a relatively large range, and in a scenario where the preset sensing range is relatively small, n may be a relatively large value because the sensing capability of the mobile phone is relatively weak and the mobile phone can sense the NFC tag efficiently.

[0074] In Scheme 3, n may be determined based on information about the detuning effect that the NFC module has on the mobile phone, for example, n may be determined based on the largest possible detuning effect that the antenna of the NFC tag has on the antenna of the NFC tag in the mobile phone.

[0075] In this embodiment, by determining n by combining one or more of the above three methods, the flexibility and diversity of determining n can be improved, and the success rate and efficiency of a mobile phone detecting an NFC tag in a POS machine can be improved while avoiding resource waste.

[0076] In some embodiments, the antennas of multiple identical NFC tags are located in pre-defined antenna areas of the electronic device.

[0077] In comparison, the preset antenna area is an area where the card reader can easily sense the NFC tag. Similarly, the preset antenna area may be determined based on demand, application scenario, history, experiment, etc., and is not limited to this embodiment.

[0078] Here, the card reading device may have a corresponding antenna area. For example, if the card reading device is a mobile phone, the antenna area may be located at the position shown in Figure 8 or Figure 9. Of course, the antenna area may be in other areas, and they will not be listed here one by one.

[0079] In this embodiment, by distributing n antennas in a predetermined antenna area, it becomes easier for the card reading device to sense the NFC tag, and the effectiveness and reliability of communication between the electronic device and the card reading device are improved.

[0080] It should be noted that although many of the above examples describe electronic devices as sensed devices and mobile phones as card reading devices, electronic devices and card reading devices should not be understood as being limited; in some communication scenarios, electronic devices are sensed devices, i.e., sensed as cards, while in other scenarios, electronic devices may sense and read other cards as card reading devices.

[0081] For example, in a scenario where two mobile phones are performing payment communication, the electronic device may be the mobile phone of the payment user or the mobile phone of the deposit user.

[0082] As can be seen from the above analysis, the above examples mainly increase the sensing area and communication range in terms of the number of NFC tags, i.e., the number of antennas, but in some other embodiments, the sensing area and communication range may be increased and communication performance improved by improving the shape and size of the antenna, etc. However, there are relative limitations to improving the antenna, for example, using a larger antenna is limited by the relatively small antenna size of mobile phones, and for antennas exceeding a certain size, communication performance actually decreases.

[0083] Therefore, in some embodiments, n may be determined by combining dimensions such as the product realization of the electronic device, the shape of the antenna, and the size of the antenna to ensure improved reliability of communication performance by increasing the sensing area and communication range.

[0084] It should be noted that the present embodiment is not limited to any material of the antenna or chip of the NFC tag, and may be determined based on demand, application scenario, historical data, experiments, and the like.

[0085] For example, the antenna may employ an empty tuning coil without modulation capability, and the NFC tag chip may employ an NFC tag chip with active load modulation capability, which can increase the communication distance and increase the sensing range with the empty tuning coil, achieving a relatively good communication effect within the communication distance range of the chip.

[0086] According to the above technical concept, the present disclosure further provides an NFC communication method, which is based on the electronic device described in the above embodiment, and as shown in FIG. 10, the communication includes the following steps S101 and S102:

[0087] S101: When the electronic device obtains a current round of card search messages sent from the card reading device, determine type attributes of multiple NFC tags with the same content, where the type attribute is used to indicate whether multiple NFC tags with the same content are sensed by the card reading device, and includes a sense type and a silent type.

[0088] Illustratively, as can be seen from FIG. 10, the default state of the electronic device is the initial state, which is waiting for tag reading, that is, multiple NFC tags with the same content are waiting to be read.

[0089] The card reading device remains in the LPCD mode after being unlocked and transmits the LPCD signal in the LPCD mode, and the electronic device receives the LPCD signal in response.

[0090] If the card reading device determines that it has detected a card based on the transmitted LPCD signal and the monitored signal, it prepares to turn on the card search and then turns on the polling card search.

[0091] As can be seen from the above example combined with Figure 6, the polling card search by the card reading device is a multi-round card search, so for the card search of the current round, the card reading device sends a card search message of the current round to the electronic device, and in response, the electronic device receives the card search message of the current round.

[0092] Here, since the current round card search message may be sent by the card reading device based on a certain communication protocol, when the electronic device receives the current round card search message, the NFC tag corresponding to this communication protocol will respond and other NFC tags will remain silent, so the type attribute of the NFC corresponding to this communication protocol may be called a sensing type, and the type attribute of other NFC tags may be called a non-sensing type (or may be called a silent type).

[0093] S102: The electronic device responds to the card search message of the current round according to the sensing type, where the response is used to read the tag data.

[0094] In response, if the type attribute determined by the electronic device is a sensing type, the electronic device responds to the card search message of the current round so that the card reading device reads the tag data based on this response.

[0095] For example, as shown in Figure 10, when the card reading device receives a response, it starts reading the NFC data, and when the NFC data is completely read, it analyzes the NFC data and performs a page jump. Here, when the electronic device completes sending the NFC data to the card reading device and does not receive the LPCD signal from the card reading device, it returns to the initial state.

[0096] In some embodiments, if the card reading device does not detect a card within a preset period, it will proceed to search for the next card; the specific implementation principle may refer to the above example and will not be further described here.

[0097] As can be seen from the above analysis, there are at least two methods that can be adopted to avoid conflicts between multiple NFC tags with the same content: Method 1: Among multiple NFC tags with the same content, different NFC tags may have different communication protocols; Method 2: Different NFC tags have the same communication protocol. To make it easier for readers to understand the above conflict avoidance methods, they will be described separately here.

[0098] Method 1 - Among multiple NFC tags with the same content, different NFC tags may have different communication protocols: In the above S101, the electronic device determining the type attributes of the multiple NFC tags with the same content includes determining the type attribute of the current NFC tag, where the current NFC tag is any NFC tag among the multiple NFC tags with the same content.

[0099] And in the above S102, the electronic device responds to the card search message of the current round according to the sensing type, where the response is used to read the tag data, includes: if the type attribute of the current NFC tag is the sensing type, responding to the card search message of the current round based on the current NFC tag, where the response is used to read the tag data of the current NFC tag.

[0100] For example, combining the above example with FIG. 3, if the number of NFC tags with the same content is two, including NFC tag 1 and NFC tag 2, and the communication protocol supported by NFC tag 1 is 14443 Type A and the communication protocol supported by NFC tag 2 is 14443 Type B, then: If the communication protocol corresponding to the current round card search message sent by the card reading device is 14443 Type A, NFC tag 1 responds to the card reading device and the type attribute of NFC tag 1 is sensing type, and NFC tag 2 does not respond to the card reading device and the type attribute of NFC tag 2 is silent type.

[0101] In response, the card reading device receives the response and, knowing that this response is from NFC tag 1, starts reading the NFC data on NFC tag 1.

[0102] Method 2 - Different NFC tags have the same communication protocol: In the above S101, the electronic device determines the type attributes of the plurality of NFC tags having the same content, including obtaining type attributes corresponding to each of the plurality of NFC tags having the same content.

[0103] And in the above S102, the electronic device responds to the card search message of the current round according to the sensing type, where the response is used to read the tag data, including responding to the card search message of the current round according to each sensing type, where the response is used to read the tag data of the target NFC tag, where the target NFC tag is determined by the card reading device from among the NFC tags corresponding to each sensing type.

[0104] For example, combining the above example with FIG. 3, the number of NFC tags with the same content is two, including NFC tag 1 and NFC tag 2, and the communication protocols supported by both NFC tag 1 and NFC tag 2 are 14443 Type A and 14443 Type B, respectively; If it is determined that the communication protocol of the current round card search message sent by the card reading device is 14443 Type A and the type attributes of NFC tag 1 and NFC tag 2 are both sensing type, then both NFC tag 1 and NFC tag 2 will respond to the card reading device.

[0105] In response, the card reading device receives responses corresponding to NFC tag 1 and NFC tag 2 respectively, and selects one NFC tag from NFC tag 1 and NFC tag 2 to interact with, for example, by selecting NFC tag 2 to interact with it, NFC tag 2 becomes the target NFC tag, and NFC tag 2 enters active, so that the card reading device starts to read NFC data from NFC tag 2.

[0106] In some embodiments, when the card reading device finishes reading data from the target NFC tag, it turns off other NFC tags other than the target NFC tag to avoid the problem of the card reading device reading multiple NFC tags and the page being displayed repeatedly.

[0107] Here, after the radio frequency field of the card reading device moves far away from the device and exceeds the communication range, each NFC tag will return to its default initial state.

[0108] It should be noted that the above examples are merely illustrative of possible implementations of the NFC communication method of the present disclosure, and should not be understood as limitations on the implementation of the NFC communication method of the present disclosure. For example, based on the above technical concept, some of the above technical features can be combined to obtain new embodiments, new technical features can be added based on the above examples to obtain new embodiments, some technical features can be reduced based on the above examples to obtain new embodiments, some technical features in the above examples can be replaced with other technical features, and the order of some technical features in the above examples can be adjusted to obtain new embodiments, etc., and they will not be listed here one by one.

[0109] According to the above technical concept, the present disclosure further provides an NFC communication system, the communication system including a card reading device and an electronic device described in any one of the above embodiments, and the card reading device is a device that communicates with the electronic device based on NFC.

[0110] The card reading device is used to send a polling card search message to the electronic device.

[0111] The electronic device is used to execute the communication method described in any one of the above embodiments based on the card search message of the current round and respond to the card reading device, wherein the polling card search message includes the card search message of the current round.

[0112] The card reading device is further used to read tag data in the electronic device based on the response.

[0113] According to the above technical concept, the present disclosure further provides a processor-readable storage medium, the processor-readable storage medium storing a computer program, and the computer program being used to cause the processor to execute the NFC communication method described in any one of the above embodiments.

[0114] According to the above technical concept, the present disclosure further provides an NFC communication system, the communication system comprising: at least one memory containing at least one set of instructions for communicating based on NFC; at least one processor in communication with the at least one memory; Here, when the at least one processor executes the at least one set of instructions, the method for communicating via NFC described in any one of the above embodiments is implemented.

[0115] According to the above technical concept, the present disclosure further provides a computer program product, which includes a computer program, which, when executed by a processor, realizes the NFC communication method described in any one of the above embodiments.

[0116] According to the above technical concept, the present disclosure further provides an electronic device, the electronic device including: a processor; and a memory communicatively connected to the processor; the memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the NFC communication method described in any one of the above embodiments.

[0117] According to the above technical concept, the present disclosure further provides a non-transitory storage medium storing at least a set of executable instructions for communicating based on NFC. When the executable instructions are executed by a processor, the executable instructions direct the processor to perform steps of the NFC communication method described herein. In some possible embodiments, each aspect of the present specification may be realized in the form of a program product including program code.

[0118] Specific embodiments of the present specification have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the examples and still achieve desirable results. Also, the processes depicted in the figures do not necessarily require a particular order or sequential order to achieve desirable results. In some embodiments, multiple task processing and parallel processing may also be possible or advantageous.

[0119] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure may be presented by way of example only and is not limiting. Although not explicitly described herein, those skilled in the art will understand that the present specification must include various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are proposed by this specification and are within the spirit and scope of the exemplary embodiments of the present specification.

[0120] It should be noted that some terms in this specification have already been used to describe embodiments of this specification. For example, "one embodiment," "embodiment," and / or "some embodiments" means that a particular feature, structure, or characteristic described in this embodiment may be included in at least one embodiment of this specification when combined. Therefore, it should be emphasized and understood that two or more references to "an embodiment," "one embodiment," or "alternative embodiment" in various parts of this specification do not necessarily refer to the same embodiment. It should be noted that a particular feature, structure, or characteristic may be combined in any suitable manner in one or more embodiments of this specification.

[0121] It should be understood that in the above description of the embodiments of this specification, in order to simplify the specification and to facilitate understanding of a single feature, this specification combines various features into a single embodiment, drawing, or description thereof. However, this does not mean that the combination of these features is required, and those skilled in the art will be able to fully understand some of the devices contained therein as a single embodiment when reading this specification. In other words, the embodiments in this specification may be understood as a combination of multiple sub-embodiments. However, the content of each sub-embodiment may be valid even when it contains fewer than all the features of a single previously disclosed embodiment.

[0122] Each patent, patent application, publication of a patent application, and other material, such as articles, books, specifications, publications, documents, articles, etc., incorporated herein by reference, except to the extent that such material is inconsistent with or conflicts with the present specification or has a limiting effect on the broadest scope of the claims, may be incorporated herein by reference and used for all purposes now or hereafter related to this specification. In the event of any inconsistency or conflict between the description, definition, and / or use of the relevant term in any material and / or the description, definition, and / or use of the relevant term in this specification, the term in this specification shall control.

[0123] Finally, it should be understood that the implementations of the application disclosed in this specification are intended to illustrate the principles of the implementations of the specification. Other modified embodiments are also within the scope of the specification. Therefore, the embodiments disclosed in this specification are merely examples and are not limiting. Those skilled in the art can adopt alternative configurations based on the embodiments herein to implement the application of the specification. Therefore, the embodiments of the specification are not limited to the embodiments precisely described in the application.

Claims

1. 1. An electronic device including an NFC module, the NFC module including a plurality of NFC tags with the same content, wherein the antennas of any two NFC tags do not completely overlap.

2. The electronic device according to claim 1 , wherein different NFC tags among the plurality of NFC tags having the same content have different communication protocols.

3. The electronic device according to claim 1 , wherein the antennas of any two NFC tags have no overlapping area.

4. 4. The electronic device according to claim 3, wherein the antennas of the plurality of NFC tags having the same content are arranged in parallel to form an antenna array.

5. The number of the plurality of NFC tags having the same content is a preset sensing range of the electronic device; a predetermined sensing range of a card reading device that communicates with the electronic device based on NFC; 2. The electronic device according to claim 1, wherein the determination is based on at least one of: information on the detuning effect that the NFC module has on the card reading device;

6. The electronic device according to claim 1 , wherein the antennas of the plurality of NFC tags with the same content are located in a preset antenna area of ​​the electronic device.

7. 7. A communication method using NFC for use in the electronic device according to claim 1, comprising: determining type attributes of the NFC tags with the same content when receiving a current round of card search messages sent from a card reading device, the type attributes being used to indicate whether the NFC tags with the same content have been sensed by the card reading device, and including a sensed type and a non-sensed type; and responding to a card search message of the current round according to the sensing type, the response being used to read tag data.

8. Among multiple NFC tags with the same content, different NFC tags have different communication protocols, The step of determining the type attribute of a plurality of NFC tags having the same content comprises: determining a type attribute of a current NFC tag, wherein the current NFC tag is any NFC tag among the plurality of identical NFC tags; Responding to a card search message of the current round according to the sensing type, the response being used to read tag data, 8. The communication method of claim 7, further comprising: responding to the card search message of the current round based on the current NFC tag when a type attribute of the current NFC tag is the sensing type, wherein the response is used to read tag data of the current NFC tag.

9. The communication protocols of the plurality of NFC tags having the same content are the same, The step of determining the type attribute of a plurality of NFC tags having the same content comprises: obtaining a type attribute corresponding to each NFC tag among the plurality of NFC tags having the same content; Responding to a card search message of the current round according to the sensing type, the response being used to read tag data, 8. The communication method of claim 7, further comprising: responding to the card search message of the current round according to each sensing type, the response being used to read tag data of a target NFC tag, wherein the target NFC tag is determined by the card reading device from among NFC tags corresponding to each sensing type.

10. 7. A communication system using NFC, comprising a card reading device and the electronic device according to claim 1, wherein the card reading device communicates with the electronic device based on NFC; The card reading device is used to send a polling card search message to the electronic device; The electronic device is used to execute the communication method according to any one of claims 7 to 9 and respond to the card reading device based on a card search message of a current round, wherein the polling card search message includes the card search message of the current round; The NFC communication system is characterized in that the card reading device is further used to read tag data in the electronic device based on the response.

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