CN117236350A - Method and device for displaying NFC analog card, electronic equipment and medium - Google Patents
Method and device for displaying NFC analog card, electronic equipment and medium Download PDFInfo
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Abstract
The application relates to the technical field of near field communication, and discloses a method for displaying an NFC analog card, which comprises the following steps: the method comprises the steps of obtaining a target signal waveform transmitted by a card reader within a preset field intensity range, and identifying the target signal waveform to obtain a waveform type. And under the condition that the waveform type is a preset type, pulling up the corresponding NFC analog card for display. In this way, through identifying the waveform of the target signal transmitted by the card reader, the corresponding NFC analog card is pulled up for display only when the waveform type is the preset type. Interference caused by signal waveforms of other waveform types with the same working frequency can be avoided. The NFC simulation card display method and device solve the problem that NFC application displays the NFC simulation card by false triggering, and therefore the NFC simulation card can be displayed more accurately. The application also discloses a device for displaying the NFC analog card, electronic equipment and a storage medium.
Description
Technical Field
The present application relates to the field of near field communication technologies, and for example, to a method and apparatus for displaying an NFC analog card, an electronic device, and a storage medium.
Background
Currently, application of NFC (Near Filed Comunication, near field communication) technology on mobile terminals has become more and more popular. NFC function mainly relies on NFC Controller chip to realize, and NFCC (NFC Controller) has realized the function of radio frequency front end, has realized functions such as non-contact technology detects, protocol activation, NFCEE (NFC Execution Environment ) management, route management, NCI (NFC Controller Interface ) simultaneously. The radio frequency front end is mainly responsible for establishing a near field communication link based on a 13.56MHz carrier with a remote endpoint.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
in the related art, the NFCC does not detect and identify the signal waveform sent by the card reader, so that a physical communication connection is established as long as the signal waveform of 13.56MHz exists, so that the NFC chip responds to the signal waveform. Therefore, the NFC application is triggered by mistake to display the corresponding NFC analog card, and the display of the NFC analog card is not accurate enough.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a method and a device for displaying an NFC analog card, electronic equipment and a storage medium, so that the NFC analog card can be displayed more accurately.
In some embodiments, a method for presenting an NFC emulated card, comprising: and acquiring a target signal waveform transmitted by the card reader within a preset field intensity range. And identifying the waveform of the target signal to obtain a waveform type. And under the condition that the waveform type is a preset type, pulling up the corresponding NFC analog card for display.
In some embodiments, acquiring a target signal waveform transmitted by a card reader within a preset range includes: and processing the received complete signal waveform to obtain an effective signal waveform. The valid signal waveform is determined as the target signal waveform transmitted by the reader.
In some embodiments, identifying the target signal waveform to obtain a waveform type includes: first characteristic information of a target signal waveform is acquired. And identifying and judging the first characteristic information of the target signal waveform to obtain the waveform type.
In some embodiments, when the waveform type is a preset type, pulling up the corresponding NFC analog card to display the waveform type, including: and under the condition that the waveform type is a preset type, determining a corresponding NFC analog card according to a target signal waveform of the preset type. And pulling up the NFC analog card for displaying.
In some embodiments, determining a corresponding NFC emulated card according to a target signal waveform of a preset type includes: and acquiring second characteristic information of the card reader. And determining a corresponding NFC analog card according to the target signal waveform of the preset type and the second characteristic information.
In some embodiments, determining a corresponding NFC emulated card according to a target signal waveform of a preset type and the second feature information includes: and matching the NFC analog card which corresponds to the second characteristic information and the target signal waveform of the preset type together from a preset database. The preset database stores the corresponding relation among the second characteristic information, the target signal waveform of the preset type and the NFC analog card.
In some embodiments, the identifying the signal waveform, after obtaining the waveform type, further includes: and under the condition that the waveform type is not the preset type, the corresponding NFC analog card is not pulled up for display.
In some embodiments, the apparatus for presenting an NFC emulated card includes a processor and a memory storing program instructions, the processor being configured to perform the above-described method for presenting an NFC emulated card when the program instructions are executed.
In some embodiments, the electronic device includes the apparatus for displaying an NFC emulated card described above.
In some embodiments, the storage medium stores program instructions that, when executed, perform the method for presenting an NFC emulated card described above.
The method and device for displaying the NFC analog card, the electronic device and the storage medium provided by the embodiment of the disclosure can realize the following technical effects: and identifying the target signal waveform by acquiring the target signal waveform transmitted by the card reader within the preset field intensity range, and obtaining the waveform type. And under the condition that the waveform type is a preset type, pulling up the corresponding NFC analog card for display. In this way, by identifying the signal waveform transmitted by the card reader, the corresponding NFC analog card is only displayed when the waveform type is a preset type. Interference caused by signal waveforms of other waveform types with the same working frequency can be avoided. The NFC simulation card display method and device solve the problem that NFC application displays the NFC simulation card by false triggering, and therefore the NFC simulation card can be displayed more accurately.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
fig. 1 is a schematic diagram of a first method for presenting an NFC emulated card provided by an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a second method for presenting an NFC emulated card provided by an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a Type a modulation waveform emitted by a metro gate according to an embodiment of the disclosure;
FIG. 4 is a schematic diagram of a Type B modulation waveform emitted by a security gate provided by an embodiment of the disclosure;
fig. 5 is a schematic circuit diagram of an NFC device according to an embodiment of the disclosure;
fig. 6 is a schematic structural diagram of an apparatus for displaying an NFC emulated card according to an embodiment of the present disclosure.
Reference numerals:
1: an NFC chip; 2: an antenna.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
The term "corresponding" may refer to an association or binding relationship, and the correspondence between a and B refers to an association or binding relationship between a and B.
In the embodiment of the disclosure, the electronic device is an NFC device, and an NFC chip is disposed in the NFC device. The NFC chip is an NFCC (NFC Controller). NFC equipment realizes NFC function through NFCC. Simultaneously, the NFCC realizes the functions of non-contact technology detection, protocol activation, NFCEE (NFC Execution Environment ) management, routing management, NCI (NFC Controller Interface ) and the like. In some embodiments, the NFC device is, for example, a smart phone, a wearable device, or the like. Wherein the wearable device comprises, for example: smart watches, smart bracelets, etc.
In some embodiments, at present, a user has a daily use scene of riding on a subway trip, and needs to go through a security check and a subway gate before entering the subway. The working frequency of the signal waveform transmitted by the security gate is the same as that of the signal waveform transmitted by the card reader in the subway gate, and the working frequency of the signal waveform transmitted by the security gate is 13.56MHz. The two waveforms are different in type but the same in operating frequency. Since the NFCC does not detect and identify the signal waveform at present, a physical communication connection is established as long as a 13.56MHz carrier radio frequency field exists. Therefore, the NFC equipment carrying the NFC chip has abnormal popup windows when passing through the security gate, and the NFC simulation card causes trouble to the subway travelling of the user. In the method for displaying the NFC analog card provided by the embodiment of the disclosure, the NFC device detects the radio frequency signal waveform emitted by the card reader, and identifies the detected signal waveform by using the NFCC, so as to obtain the waveform type. And displaying the corresponding NFC analog card under the condition that the waveform type is a preset type. In this way, the corresponding NFC emulated card is only displayed if the waveform type is of a preset type. Interference caused by signal waveforms of other waveform types with the same working frequency can be avoided. The NFC Application such as wallet APP (Application) can not be triggered by mistake to display the NFC analog card when the NFC is opened and passes through the security gate. NFC analog card display is only carried out when the subway gate passes through. Thereby realizing more accurate display of the NFC analog card.
Referring to fig. 1, an embodiment of the present disclosure provides a method for displaying an NFC emulated card, including:
step S101, the electronic equipment acquires a target signal waveform transmitted by a card reader within a preset field intensity range.
Step S102, the electronic equipment identifies the waveform of the target signal to obtain the waveform type.
Step S103, the electronic equipment pulls up the corresponding NFC analog card to display under the condition that the waveform type is a preset type.
By adopting the method for displaying the NFC analog card, which is provided by the embodiment of the disclosure, the waveform of the target signal is identified by acquiring the waveform of the target signal transmitted by the card reader within the range of the preset field intensity, and the waveform type is obtained. And displaying the corresponding NFC analog card under the condition that the waveform type is a preset type. In this way, by identifying the signal waveform transmitted by the card reader, the corresponding NFC analog card is only displayed when the waveform type is a preset type. Interference caused by signal waveforms of other waveform types with the same working frequency can be avoided. The NFC simulation card display method and device solve the problem that NFC application displays the NFC simulation card by false triggering, and therefore the NFC simulation card can be displayed more accurately.
In some embodiments, the preset field strength range is a range in which the NFCC in the NFC device can detect the field strength.
Optionally, the waveform types include a Type a modulated waveform, a Type B modulated waveform.
Further, the electronic device obtains a signal waveform emitted by the card reader within a preset field intensity range, including: the electronic equipment processes the received complete signal waveform to obtain an effective signal waveform. The valid signal waveform is determined as the target signal waveform transmitted by the reader.
In some embodiments, the electronic device processes the received complete signal waveform with the NFCC to obtain a valid signal waveform. Therefore, invalid signal waveforms can be screened out, and the identification and judgment of waveform types are more accurate.
Further, the electronic device identifies the waveform of the target signal, and obtains a waveform type, including: the electronic device obtains first characteristic information of the target signal waveform. And identifying and judging the first characteristic information of the target signal waveform to obtain the waveform type.
Optionally, the first characteristic information includes characteristics of amplitude, phase, rising and falling timing, modulation mode, modulation degree, and the like of the waveform.
Optionally, the electronic device identifies the target signal waveform to obtain a waveform type, including: after receiving the target signal waveform, the electronic equipment identifies the target signal waveform within a preset time period to obtain the waveform type. Wherein the preset time period is 20-50us. In this way, by setting the response delay of the preset time period, the NFC chip can have a certain time to judge the waveform type of the target signal waveform. Therefore, the corresponding NFC analog card can be pulled up to be displayed according to the waveform type. The NFC analog card can be accurately displayed.
Further, under the condition that the waveform type is a preset type, the electronic device pulls up the corresponding NFC analog card to display, and the method comprises the following steps: and under the condition that the waveform type is a preset type, the electronic equipment determines a corresponding NFC analog card according to the signal waveform of the preset type. And pulling up the NFC analog card for display.
In some embodiments, the preset Type is a Type a modulated waveform.
Further, the electronic device determines a corresponding NFC analog card according to a target signal waveform of a preset type, including: the electronic device obtains second characteristic information of the card reader. And determining a corresponding NFC analog card according to the target signal waveform of the preset type and the second characteristic information. In this way, the corresponding NFC analog card can be more accurately determined through the target signal waveform of the preset type and the second characteristic information.
Optionally, the second characteristic information includes, but is not limited to, switching field time, radio frequency field duration, and size of the transmit field, etc.
In some embodiments, when the preset Type of signal waveform is a Type a modulated waveform, the second characteristic information switch field time is 137.5ms, the radio frequency field duration is 628ms, and the size of the transmitting field is within the first preset range, the card reader sending the signal waveform is considered to be a subway gate, and the corresponding NFC analog card is determined to be a bus subway card. In some embodiments, the first preset range is 10cm.
In some embodiments, when the preset Type of signal waveform is a Type a modulated waveform, the second characteristic information switch field time is 85.9ms, the radio frequency field duration is 921ms, and the size of the transmitting field is within a second preset range, the card reader sending the signal waveform is considered to be a company entrance guard gate, and the corresponding NFC analog card is determined to be a company entrance guard card. In some embodiments, the second preset range is 10cm.
In some embodiments, when the preset Type of signal waveform is a Type a modulation waveform, the second characteristic information switch field time is 87.5ms, the radio frequency field duration is 625ms, and the size of the transmitting field is in the third preset range, the card reader sending the signal waveform is considered to be a cell gate, and the corresponding NFC analog card is determined to be a cell gate card. In some embodiments, the third preset range is 10cm.
Further, the electronic device determines a corresponding NFC analog card according to a target signal waveform of a preset type and second feature information, including: and the electronic equipment matches the NFC analog card which corresponds to the second characteristic information and the target signal waveform of the preset type together from a preset database. The preset database stores the corresponding relation among the second characteristic information, the target signal waveform of the preset type and the NFC analog card. Therefore, the second characteristic information, the target signal waveform of the preset type and the NFC analog card are stored in the database in advance, so that a user can conveniently and quickly confirm the corresponding NFC analog card, and the display efficiency of the NFC analog card is improved.
Further, the electronic device identifies the signal waveform, and after obtaining the waveform type, the method further includes: and under the condition that the waveform type is not the preset type, the electronic equipment does not display the corresponding NFC analog card.
In some embodiments, the preset Type is a Type a adjustment waveform, and if the waveform Type is a Type B adjustment waveform, the preset Type is considered to be a signal waveform sent by the security gate. At the moment, the corresponding NFC analog card is not displayed, and the problem that the NFC application displays the NFC analog card by false triggering can be solved. Therefore, the NFC analog card can be displayed more accurately.
In some embodiments, the electronic device receives the target signal waveform transmitted by the card reader and identifies the signal waveform using the NFCC, thereby identifying the waveform type of the target signal waveform. And under the condition that the waveform Type of the target signal waveform is the Type B modulation waveform, the card reader sending the target signal waveform is considered to be a security gate. At this time, the wallet application does not pull up the corresponding NFC emulated card for display. The non-sensing passing security gate can be realized, and after passing the security gate. Under the condition that the waveform Type of the signal waveform is the Type A modulation waveform, the card reader sending the signal waveform is considered to be a subway gate. At this time, the corresponding NFC analog card is pulled up through the wallet application and popup window display is performed. The normal subway card swiping is not affected, and the user does not need to repeatedly switch NFC when riding on the subway. And the user experience is improved.
As shown in conjunction with fig. 2, an embodiment of the present disclosure provides a method for displaying an NFC emulated card, including:
step S201, the electronic device obtains a target signal waveform transmitted by the card reader within a preset field intensity range. Step S202 is then performed.
In step S202, the electronic device identifies the waveform of the target signal, and obtains the waveform type. Then step S203 is performed.
Step S203, the electronic device judges whether the waveform type is a preset type; in case that the waveform type is a preset type, step S204 is performed; and/or, in case the waveform type is not a preset type, step S207 is performed.
In step S204, the electronic device obtains second feature information of the card reader. Then step S205 is performed.
In step S205, the electronic device determines a corresponding NFC analog card according to the target signal waveform of the preset type and the second feature information. Then step S206 is performed.
Step S206, the electronic equipment pulls up the corresponding NFC analog card to display. And then ends.
Step S207, the electronic device does not pull up the corresponding NFC analog card for display. And then ends.
By adopting the method for displaying the NFC analog card, which is provided by the embodiment of the disclosure, the waveform of the target signal is identified by acquiring the waveform of the target signal transmitted by the card reader within the preset range, and the waveform type is obtained. And judging the waveform types, and determining whether to display the corresponding NFC analog card according to different waveform types. In this way, whether the corresponding NFC analog card is pulled up or not is determined according to different waveform types for display. Interference caused by signal waveforms of other waveform types with the same working frequency can be avoided. The NFC simulation card display method and device solve the problem that NFC application displays the NFC simulation card by false triggering, and therefore the NFC simulation card can be displayed more accurately.
Referring to fig. 3 and fig. 4, fig. 3 is a schematic diagram of a Type a modulation waveform emitted by a metro gate according to an embodiment of the disclosure. Fig. 4 is a schematic diagram of a Type B modulation waveform emitted by a security gate according to an embodiment of the present disclosure. The abscissa in fig. 3 and 4 is time, and the ordinate is amplitude.
Fig. 5 is a schematic circuit diagram of an NFC device according to an embodiment of the present disclosure, with reference to fig. 5. The NFC device comprises an NFC chip 1 and an antenna 2. The NFC device receives the target signal waveform transmitted by the reader through the antenna 2. The antenna 2 transmits the received target signal waveform to the NFC chip 1 for identification through the receiving pin RXP and the receiving pin RXN. Thereby obtaining the waveform type of the received target signal waveform. After identifying the waveform Type of the received target signal waveform, the NFC chip 1 determines and displays the corresponding NFC analog card under the condition that the waveform Type of the target signal waveform is the Type a modulation waveform. And under the condition that the waveform Type of the target signal waveform is the Type B modulation waveform, the corresponding NFC analog card is not displayed. Thus, interference caused by signal waveforms of other waveform types with the same working frequency can be avoided. The NFC simulation card display method and device solve the problem that NFC application displays the NFC simulation card by false triggering, and therefore the NFC simulation card can be displayed more accurately.
As shown in connection with fig. 6, an embodiment of the present disclosure provides an apparatus 600 for presenting an NFC emulated card, the apparatus including a processor (processor) 604 and a memory (memory) 601. Optionally, the electronic device may also include a communication interface (Communication Interface) 602 and a bus 603. The processor 604, the communication interface 602, and the memory 601 may communicate with each other via the bus 603. The communication interface 602 may be used for information transfer. The processor 604 may invoke logic instructions in the memory 601 to perform the method for exposing an NFC emulated card of the above-described embodiments.
By adopting the device for displaying the NFC analog card, which is provided by the embodiment of the disclosure, the waveform of the target signal is identified by acquiring the waveform of the target signal transmitted by the card reader within the range of the preset field intensity, and the waveform type is obtained. And under the condition that the waveform type is a preset type, pulling up the corresponding NFC analog card for display. In this way, by identifying the signal waveform transmitted by the card reader, the corresponding NFC analog card is only displayed when the waveform type is a preset type. Interference caused by signal waveforms of other waveform types with the same working frequency can be avoided. The NFC simulation card display method and device solve the problem that NFC application displays the NFC simulation card by false triggering, and therefore the NFC simulation card can be displayed more accurately.
Further, the logic instructions in the memory 601 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 601 serves as a computer readable storage medium, and may be used to store a software program, a computer executable program, and program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 604 executes the functional applications and data processing by running the program instructions/modules stored in the memory 601, i.e. implements the method for presenting an NFC emulated card in the above-described embodiments.
The memory 601 may include a storage program area and a storage data area, wherein the storage program area may store an application program required to operate at least one function; the storage data area may store data created according to the use of the terminal device, etc. In addition, the memory 601 may include a high-speed random access memory, and may also include a nonvolatile memory.
Optionally, an embodiment of the present disclosure provides an electronic device, including the apparatus for displaying an NFC analog card described above.
By adopting the electronic equipment provided by the embodiment of the disclosure, the waveform of the target signal is identified by acquiring the waveform of the target signal emitted by the card reader within the preset field intensity range, and the waveform type is obtained. And under the condition that the waveform type is a preset type, pulling up the corresponding NFC analog card for display. In this way, by identifying the signal waveform transmitted by the card reader, the corresponding NFC analog card is only displayed when the waveform type is a preset type. Interference caused by signal waveforms of other waveform types with the same working frequency can be avoided. The NFC simulation card display method and device solve the problem that NFC application displays the NFC simulation card by false triggering, and therefore the NFC simulation card can be displayed more accurately.
Optionally, the electronic device is an NFC device mounted with an NFC chip, such as a smart phone, a smart watch, and the like.
The embodiment of the disclosure provides a storage medium, which stores program instructions that, when executed, perform the method for displaying an NFC emulated card.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for presenting an NFC emulated card.
The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, including one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this disclosure is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in the present disclosure, the terms "comprises," "comprising," and/or variations thereof, mean that the recited features, integers, steps, operations, elements, and/or components are present, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or apparatus comprising such elements. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus and unit described above may refer to the corresponding process in the foregoing method embodiment, which is not repeated herein.
In the embodiments disclosed herein, the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be practiced in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A method for displaying an NFC emulated card, comprising:
acquiring a target signal waveform transmitted by a card reader within a preset field intensity range;
identifying the waveform of the target signal to obtain a waveform type;
and under the condition that the waveform type is a preset type, pulling up the corresponding NFC analog card for display.
2. The method of claim 1, wherein acquiring the target signal waveform transmitted by the reader within the predetermined range comprises:
processing the received complete signal waveform to obtain an effective signal waveform;
the valid signal waveform is determined as the target signal waveform transmitted by the reader.
3. The method of claim 1, wherein identifying the target signal waveform to obtain a waveform type comprises:
acquiring first characteristic information of a target signal waveform;
and identifying and judging the first characteristic information of the target signal waveform to obtain the waveform type.
4. The method of claim 1, wherein, in the case that the waveform type is a preset type, pulling up the corresponding NFC analog card to display the waveform type, includes:
under the condition that the waveform type is a preset type, determining a corresponding NFC analog card according to a target signal waveform of the preset type;
and pulling up the NFC analog card for displaying.
5. The method of claim 4, wherein determining the corresponding NFC emulated card from the pre-set type of target signal waveform comprises:
acquiring second characteristic information of the card reader;
and determining a corresponding NFC analog card according to the target signal waveform of the preset type and the second characteristic information.
6. The method of claim 1, wherein determining the corresponding NFC emulated card according to the target signal waveform of the preset type and the second characteristic information comprises:
matching an NFC analog card which corresponds to the second characteristic information and the target signal waveform of the preset type together from a preset database; the preset database stores the corresponding relation among the second characteristic information, the target signal waveform of the preset type and the NFC analog card.
7. The method of claim 1, wherein identifying the signal waveform, after obtaining a waveform type, further comprises:
and under the condition that the waveform type is not the preset type, the corresponding NFC analog card is not pulled up for display.
8. An apparatus for presenting an NFC emulated card, comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for presenting an NFC emulated card as claimed in any of claims 1 to 7 when executing the program instructions.
9. An electronic device comprising the apparatus for presenting an NFC emulated card as claimed in claim 8.
10. A storage medium storing program instructions which, when executed, perform the method for presenting an NFC emulated card according to any of claims 1 to 7.
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