Interaction processing method and apparatus based on near field communication, and near field communication device

Abstract

Disclosed in the embodiments of the present description are an interaction processing method and apparatus based on near field communication, and a near field communication device, which are conducive to improving the success rate and efficiency of near field communication between a near field communication device of a merchant and a mobile phone of a user. The solution comprises: by means of a plurality of signal sensing antennas deployed on a near field communication device, respectively sensing a currently approaching sensing object; on the basis of the difference in signal strengths respectively sensed by the plurality of signal sensing antennas, selecting, from a plurality of near field communication antennas deployed on the near field communication device, a near field communication antenna that is close to the sensing object to serve as a target near field communication antenna; and by means of the target near field communication antenna, establishing communication with the sensing object, so as to perform service interaction.

Description

Interactive processing methods, devices, and near-field communication equipment based on near-field communication Technical Field

[0001] This specification relates to the field of near-field communication technology, and in particular to interactive processing methods, apparatuses, and near-field communication devices based on near-field communication. Background Technology

[0002] Near Field Communication (NFC) is a short-range, high-frequency radio technology that operates at a frequency of 13.56 MHz within a range of 20 centimeters. It evolved from contactless radio frequency identification (RFID) and interconnection technologies, providing a highly secure and fast communication method for various electronic products.

[0003] With the widespread use of smartphones that support near-field communication (NFC) functionality, NFC technology has also been widely applied in areas such as payments. Merchants can use NFC devices as point-of-sale (POS) devices, allowing users to complete payments by bringing their phones close to the merchant's NFC device for inductive communication.

[0004] In existing technologies, near-field communication devices need to use larger antennas to expand their sensing range. However, the signal strength per unit area decreases after the antenna area is increased, resulting in a reduction in the reading distance. Moreover, the size of the near-field communication antenna, its position on the phone, the current status of the antenna, and the power consumption control logic vary among different mobile phones, which will also affect the actual sensing effect of the near-field communication device, and consequently affect the success rate and efficiency of near-field communication.

[0005] Therefore, there is a need for solutions that can help improve the success rate and efficiency of near-field communication between merchants' near-field communication devices and users' mobile phones.

[0006] Summary of the Invention

[0007] This specification provides one or more embodiments of an interactive processing method, apparatus, near-field communication device, and storage medium based on near-field communication to solve the following technical problem: the need for a solution that helps improve the success rate and efficiency of near-field communication between a merchant's near-field communication device and a user's mobile phone.

[0008] To solve the above-mentioned technical problems, one or more embodiments of this specification are implemented as follows.

[0009] This specification provides one or more embodiments of an interactive processing method based on near-field communication, comprising: sensing nearby objects using multiple signal sensing antennas deployed on a near-field communication device; selecting the near-field communication antenna closest to the object from among the multiple near-field communication antennas deployed on the near-field communication device, based on the differences in signal strength sensed by the multiple signal sensing antennas, as the target near-field communication antenna; and establishing communication with the object through the target near-field communication antenna to perform service interaction.

[0010] This specification provides an interactive processing device based on near-field communication (NFC) according to one or more embodiments, comprising: a multi-antenna sensing module, which senses nearby objects through multiple signal sensing antennas deployed on a near-field communication device; a near-field communication antenna filtering module, which selects the near-field communication antenna closest to the sensed object from among the multiple near-field communication antennas deployed on the near-field communication device, based on the differences in signal strength sensed by the multiple signal sensing antennas, as the target near-field communication antenna; and a near-field communication service interaction module, which establishes communication with the sensed object through the target near-field communication antenna to perform service interaction.

[0011] This specification provides an interactive processing device based on near-field communication (NFC) according to one or more embodiments, including multiple signal sensing antennas, multiple near-field communication antennas, and one or more control chips; at least two of the signal sensing antennas respectively sense an approaching object; the control chip, based on the difference in signal strength sensed by the at least two signal sensing antennas, selects the near-field communication antenna closest to the object from among the multiple near-field communication antennas as the target near-field communication antenna; the target near-field communication antenna establishes communication with the object to perform service interaction.

[0012] This specification provides an interactive processing device based on near-field communication (NFC) according to one or more embodiments, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform: sensing a currently approaching object through a plurality of signal sensing antennas deployed on the NFC device; selecting, based on the differences in signal strength sensed by the plurality of signal sensing antennas, selecting the NFC antenna closest to the object from among the plurality of NFC antennas deployed on the NFC device as a target NFC antenna; and establishing communication with the object through the target NFC antenna to perform service interaction.

[0013] This specification provides one or more embodiments of a non-volatile computer storage medium storing computer-executable instructions, which are configured to: sense nearby objects using multiple signal sensing antennas deployed on a near-field communication device; select the near-field communication antenna closest to the sensed object from among the multiple near-field communication antennas deployed on the near-field communication device based on the differences in signal strength sensed by the multiple signal sensing antennas, and designate it as a target near-field communication antenna; and establish communication with the sensed object through the target near-field communication antenna to perform service interaction.

[0014] The above-described at least one technical solution adopted in one or more embodiments of this specification can achieve the following beneficial effects: the antenna of the near-field communication device is separated at the functional and hardware levels, creating an architecture in which multiple signal sensing antennas work in conjunction with multiple near-field communication antennas. The multiple signal sensing antennas are mainly used to sense the sensing object (e.g., a mobile phone) to determine which near-field communication antenna is closer to the currently approaching sensing object. Then, this near-field communication antenna is used to establish communication with the sensing object for business interaction. In this way, the signal sensing antenna can be designed more lightweightly and deployed in a distributed manner on the near-field communication device, effectively expanding the sensing distance and sensing range while helping to balance cost. The near-field communication antennas can also be deployed in a distributed manner (optionally, the near-field communication antennas can be reduced to further reduce costs without affecting sensing), focusing on establishing communication. Through cooperation with the signal sensing antennas, the optimal antenna is selected each time (i.e., communication is established each time by the near-field communication antenna with the expected better effect), which helps to conduct near-field communication with various different sensing objects more efficiently and with a higher success rate, with better compatibility and a better experience for merchants and users. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 is a flowchart illustrating an interactive processing method based on near-field communication provided in one or more embodiments of this specification;

[0017] Figure 2 is a flowchart illustrating a near-field communication range dynamic control scheme provided in one or more embodiments of this specification;

[0018] Figure 3 is a flowchart illustrating a low-power mode control scheme for a sensing object provided in one or more embodiments of this specification;

[0019] Figure 4 is a schematic flowchart illustrating the working scheme of a near-field communication cash register device provided in one or more embodiments of this specification;

[0020] Figure 5 is a structural schematic diagram of a near-field communication device provided in one or more embodiments of this specification;

[0021] Figure 6 is a schematic diagram of the specific structure of a first near-field communication device in an application scenario provided by one or more embodiments of this specification;

[0022] Figure 7 is a schematic diagram of the specific structure of a second near-field communication device in an application scenario provided by one or more embodiments of this specification;

[0023] Figure 8 is a schematic diagram of the specific structure of a third near-field communication device in an application scenario provided by one or more embodiments of this specification;

[0024] Figure 9 is a schematic diagram of the specific structure of a fourth near-field communication device in an application scenario provided by one or more embodiments of this specification;

[0025] Figure 10 is a schematic diagram of the specific structure of a fifth near-field communication device in an application scenario provided by one or more embodiments of this specification;

[0026] Figure 11 is a schematic diagram of the structure of an interactive processing device based on near-field communication provided in one or more embodiments of this specification;

[0027] Figure 12 is a schematic diagram of the structure of a near-field communication device provided in one or more embodiments of this specification. Detailed Implementation

[0028] This specification provides embodiments of interactive processing methods, apparatuses, near-field communication devices, and storage media based on near-field communication.

[0029] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0030] To address the issues mentioned in the background, this application improves the performance of near-field communication (NFC) in the following ways by disassembling the antennas and distributing them in a distributed manner, along with the use of corresponding chip signal processing methods: it reliably and dynamically expands the sensing distance and range of the NFC antennas; it helps to increase the success rate and efficiency of NFC devices in reading different mobile phones, and increases the compatibility of NFC devices with different mobile phones; optionally, it can improve scalability by flexibly deploying the antennas to meet the performance requirements of different scenarios, while balancing cost control requirements.

[0031] Based on this overall approach, the solution proposed in this application will be further explained below.

[0032] Figure 1 is a flowchart illustrating an interactive processing method based on near-field communication provided in one or more embodiments of this specification. The executing entity of this process can be a near-field communication device or a module therein. From a software perspective, the executing entity can be an application on the near-field communication device, such as a point-of-sale (POS) application.

[0033] The process in Figure 1 includes the following steps S102 to S106.

[0034] S102: Using multiple signal sensing antennas deployed on the near-field communication device, the device senses the currently approaching objects.

[0035] In one or more embodiments of this specification, the signal sensing antenna is primarily responsible for inferring the location or direction from which the sensing object approaches the near-field communication device through sensing detection, without being responsible for the actual communication establishment or data transmission of services with the sensing object. Multiple signal sensing antennas are deployed on the near-field communication device. The signal sensing antennas that sense the sensing object in step S102 can be two or more of these multiple signal sensing antennas. The number of signal sensing antennas that can simultaneously sense the currently approaching object can be affected by controlling the sensing capability of the signal sensing antennas.

[0036] Multiple signal sensing antennas are deployed at different locations on the near-field communication device, especially in a distributed manner. This helps to have better sensing capabilities for objects in different directions, resulting in a larger global sensing range, higher reliability, and reduced operational requirements for users. Users can more freely and easily bring their mobile phones close to the near-field communication device from more directions to conduct near-field communication interactions.

[0037] S104: Based on the differences in signal strength sensed by the multiple signal sensing antennas, select the near-field communication antenna closest to the sensing object from among the multiple near-field communication antennas deployed on the near-field communication device, and use it as the target near-field communication antenna.

[0038] Among multiple signal sensing antennas capable of detecting an approaching object, those closer to the object and / or whose antenna orientation is more accurately aligned with the object's approach direction are more likely to detect a stronger signal. By strategically deploying these antennas at different locations on the near-field communication device, it is possible to ensure that, at least in most cases, the signal strengths detected by each antenna for the object differ. Based on these differences, calculations such as triangulation can be used to roughly estimate the object's approach direction, and potentially even more accurately, the object's dynamic relative position to the near-field communication device.

[0039] For example, the location of the sensing object can be attempted based on the difference in signal strength sensed by at least three signal sensing antennas deployed in different locations. Since the location of each near-field communication antenna is known for near-field communication devices, the near-field communication antenna closest to the sensing object can be selected from among the multiple near-field communication antennas deployed on the near-field communication device.

[0040] In one or more embodiments of this specification, similar to signal sensing antennas, multiple near-field communication antennas are deployed at different locations on the near-field communication device, particularly in a distributed manner. This facilitates distance differentiation, making it easier to select the target near-field communication antenna with the most prominent advantages in different directions. Near-field communication antennas that are relatively closer to the sensing object (especially the closest) are more likely to establish communication with the sensing object more efficiently and reliably. Therefore, such near-field communication antennas can be preferentially selected as the target near-field communication antennas.

[0041] It should be noted that in practical applications, distance can be used as an active filtering factor. Additionally, if necessary, other factors besides distance (such as antenna orientation, operating power, and idle time) can be combined to filter near-field communication antennas. In this case, the final target near-field communication antenna may not be the one closest to the sensing object, but rather a nearby near-field communication antenna that ranks highly.

[0042] Furthermore, this application aims to use the signal sensing antenna as a vanguard, capable of detecting the sensing object as early as possible, prior to the near-field communication antenna. Therefore, the signal sensing antenna can be given a positional advantage. For example, multiple signal sensing antennas deployed on the near-field communication device can be distributed outwards, and similarly, multiple near-field communication antennas can be distributed inwards. This deployment also has advantages, including avoiding the need for large antennas, and providing sufficient space on the outer edges to deploy a larger number (if needed) of signal sensing antennas, thereby effectively improving global sensing capability and avoiding large-scale sensing blind spots.

[0043] S106: Establish communication with the sensed object through the target near-field communication antenna to conduct service interaction.

[0044] In one or more embodiments of this specification, the near-field communication antenna is mainly used to establish communication with the sensed object and to conduct subsequent service interactions. Its task is relatively more complex. Compared to the near-field communication antenna, the signal sensing antenna can be implemented in a lighter and lower-cost manner. In terms of quantity, the number of signal sensing antennas deployed on the near-field communication device can also be greater than the number of near-field communication antennas. In this way, while ensuring sensing capability and subsequent formal interaction capability, cost requirements can also be met.

[0045] Devices supporting near-field communication (NFC) (including the NFC devices and mobile phones mentioned above) can operate in either card emulation mode or card reader mode. Card emulation mode means the device functions as an RFID-enabled IC card for a card reader to read. Card reader mode means the device functions as a card reader, for example, reading information from RFID-enabled IC cards, posters, or electronic tags for exhibition information.

[0046] In traditional technologies, taking the payment field as an example, merchants' near-field communication (NFC) payment devices operate in card reader mode. The user's mobile phone operates in card emulation mode, simulating a credit or debit card. The user can achieve a similar effect to swiping a card by bringing the phone close to the payment device for sensor interaction. However, in practical applications, the above interaction method may have compatibility issues, such as compatibility problems between some applications and mobile phone manufacturers, which may introduce unreliability factors into the interaction and even affect the normal development of some businesses.

[0047] Based on this, considering breaking through the limitations of traditional thinking, the merchant's near-field communication (NFC) equipment is no longer limited to the card reader working mode, but is also compatible with the card emulation working mode in terms of business operations, and can preferentially use the card emulation working mode to interact with the user's mobile phone. In this case, for step S106, after establishing communication with the sensing object (such as a mobile phone) through the target NFC antenna, assuming that the interaction is a payment business, specifically, the merchant's NFC equipment acts as a simulated card and generates payment information, so that the user's mobile phone, as the sensing object, acts as a card reader to read the simulated card to obtain the payment information, and makes payment based on the payment information (such as the user confirming payment for an order on their mobile phone).

[0048] Using the method shown in Figure 1, the antennas of the near-field communication (NFC) device are decomposed at both the functional and hardware levels, creating an architecture where multiple signal sensing antennas work in conjunction with multiple NFC antennas. The signal sensing antennas are primarily used to sense objects (e.g., mobile phones) to determine which NFC antenna is closest to the currently approaching object. This chosen NFC antenna then establishes communication with the object for business interaction. This allows for a lighter design of the signal sensing antennas and their distributed deployment on the NFC device, effectively expanding the sensing distance and range while maintaining cost-effectiveness. The NFC antennas can also be appropriately distributed (optionally, the number of NFC antennas can be reduced to further lower costs without affecting sensing performance), focusing on establishing communication. Through cooperation with the signal sensing antennas, the antenna is selected based on its optimal performance (i.e., communication is established each time by the NFC antenna with the expected better performance). This facilitates more efficient and higher success rates of NFC communication with various objects, resulting in better compatibility and a better experience for both businesses and users.

[0049] Based on the method in Figure 1, this specification also provides some specific implementation schemes and extension schemes of the method, which will be further explained below.

[0050] In one or more embodiments of this specification, for a currently approaching sensing object, a target near-field communication antenna is selected from multiple near-field communication antennas to further establish communication. As described above, the near-field communication antenna can preferably be deployed in a more inward position compared to the signal sensing antenna. Considering this, in order to enable the target near-field communication antenna to establish communication more reliably and efficiently, while also saving resources globally, the performance of the target near-field communication antenna can be temporarily enhanced, and optionally, the performance of other near-field communication antennas can be reduced. Based on this idea, one or more embodiments of this specification provide a flow chart of a dynamic control scheme for near-field communication range. Figure 2 is a schematic diagram of this flow chart, which mainly represents antenna performance from the perspective of transmitted signals or control signals.

[0051] The process in Figure 2 includes the following steps S202 to S204.

[0052] S202: Among the multiple near-field communication antennas deployed on the near-field communication device, the near-field communication antenna closest to the sensing object is selected as the target near-field communication antenna, and then the signal enhancement of the target near-field communication antenna is controlled.

[0053] After the signal (including the transmitted signal) of the target near-field communication antenna is enhanced, it becomes easier to establish communication with the sensed object and helps maintain the stability of subsequent communication. After communication is completed, the signal of the target near-field communication antenna can be restored in a timely manner to avoid potential interference with the signal sensing antenna or other near-field communication antennas.

[0054] The specific degree of signal enhancement by the target near-field communication antenna can be determined based on the actual situation. For example, if the signal strength sensed by the signal sensing antenna for the target object is relatively low, the signal strength of the target near-field communication antenna can be enhanced more significantly; conversely, the enhancement degree can be less. In this way, the near-field communication range can be adaptively and flexibly controlled in conjunction with the signal sensing antenna to better accommodate sensing objects with different performance characteristics, thereby providing users with a more consistent and satisfactory experience.

[0055] S204: Temporarily shut down the control signals of the other near-field communication antennas among the plurality of near-field communication antennas except for the target near-field communication antenna, or temporarily reduce or shut down the signals of the other near-field communication antennas among the plurality of near-field communication antennas except for the target near-field communication antenna.

[0056] By performing step S204, the performance of other near-field communication antennas can be temporarily suppressed, thereby further highlighting the current superiority of the target near-field communication antenna. This allows the sensing object to more accurately connect to the target near-field communication antenna and reduces global resource consumption. After communication is completed, the performance of other near-field communication antennas can be restored in a timely manner. Following a similar approach, multiple near-field communication antennas can be controlled during normal use, dynamically taking turns to degrade the performance of some of them.

[0057] As mentioned earlier, this application aims to have the merchant's near-field communication (NFC) device operate in card emulation mode, while the user's mobile phone, acting as the sensing object, operates in card reader mode. During in-depth testing, the applicant discovered potential problems with low-power mode. Specifically, the user's mobile phone's NFC signal might enter low-power mode to conserve resources. In this case, during traditional NFC interactions, even in low-power mode, if the mobile phone is in card emulation mode, it is unlikely to hinder normal data reading, thus ensuring a high probability of normal service. However, if the mobile phone is in card reader mode, it may be difficult to communicate normally with the NFC device acting as a card emulation device in low-power NFC signal mode. To address this issue, one or more embodiments of this specification provide a flowchart illustrating a control scheme for low-power mode of the sensing object, as shown in Figure 3.

[0058] The process in Figure 3 includes the following steps S302 to S304.

[0059] S302: Detect whether the near-field communication signal of the sensing object has entered a low-power mode through the signal sensing antenna.

[0060] The system can detect whether a low-power mode has been entered by judging the strength of the sensed signal.

[0061] S304: If so, the near-field communication device is put into card reader mode, and a signal is sent to the sensing object in card reader mode to make the near-field communication signal of the sensing object exit the low-power mode.

[0062] After exiting low-power mode, the near-field communication device can switch to card emulation mode so that the sensed object can be read as a card reader (card reader mode is required).

[0063] The scheme shown in Figure 3, through active intervention by the near-field communication device, enables the near-field communication signal of the sensed object to exit low-power mode, thereby allowing for more reliable communication between the two parties. This also avoids the target's near-field communication antenna excessively amplifying its signal strength to cope with the low-power mode.

[0064] In one or more embodiments of this specification, since this application employs multiple signal sensing antennas, and in conjunction with a scheme that selectively selects a target near-field communication antenna among the multiple near-field communication antennas for the current sensing object, it is possible to support serving multiple sensing objects simultaneously by performing parallel processing at the back end of the multiple near-field communication antennas (which can be achieved through relative hardware and software modifications).

[0065] In this scenario, there can be multiple sensing objects approaching in step S102. These objects can approach the near-field communication device from different directions, allowing communication to be established with multiple sensing objects simultaneously via different target near-field communication antennas for business interaction. From the user's perspective, this means multiple users holding mobile phones can simultaneously interact with the same near-field communication device from different directions, effectively improving service efficiency. Furthermore, it enables new business models, bringing more convenience to users. For ease of understanding and intuitive visualization, one or more embodiments of this specification provide a flowchart illustrating the working scheme of a near-field communication POS device, see Figure 4.

[0066] The process in Figure 4 includes the following steps S402 to S408.

[0067] S402: Determine different target near-field communication antennas for multiple sensing objects that are currently approaching the near-field communication cash register from different directions.

[0068] These multiple sensors belong to multiple users who may be acquaintances, such as friends, colleagues, or relatives. By sensing their proximity, they can share the cost of an order. Specific scenarios could include paying the bill after a meal or group-buying.

[0069] Of course, this solution can also be implemented for multiple users who do not know each other, such as in scenarios involving group buying with discounts.

[0070] S404: Establish communication with multiple sensing objects correspondingly through different target near-field communication antennas.

[0071] S406: Determine the amount due for payment in the current order.

[0072] Whether it's a single payment or a group purchase, merchants only need to generate one order for each group using near-field communication (NFC) POS devices. This greatly simplifies the merchant's operations, reduces the operational efficiency of the group, and is less likely to cause disputes.

[0073] S408: The amount to be paid is split and sent to multiple sensing objects through the established communication, so that each sensing object pays a portion of the split amount to be paid.

[0074] Here, the splitting strategy can be differentiated according to the specific needs of the scenario. For example, in a group-buying scenario with discounts, the splitting can be differentiated based on the user profile characteristics (such as status, spending habits, and friend relationships), so that different users may receive different amounts of the outstanding payment, and consequently, different users may actually receive different discounts. Another example is in a friend gathering scenario, where the outstanding payment amount can be split evenly.

[0075] It should be noted that the example in Figure 4 takes into full account the relationships between multiple users who are sensing simultaneously. In reality, it is certainly possible for multiple users to independently and in parallel perform their own tasks even if they interact through simultaneous sensing.

[0076] The interactive processing scheme proposed in this application has been described above. Based on the same idea, this application also provides the main structure of a near-field communication device that can be used to implement the above scheme, as well as several exemplary specific implementation structures based on the main structure, for a more intuitive understanding. The description is in conjunction with Figures 5 to 10.

[0077] Figure 5 is a schematic diagram of the structure of a near-field communication device provided in one or more embodiments of this specification. It presents the main structure of the device in a relatively abstract way, but does not limit the specific module layout and connection relationship.

[0078] The near-field communication device in Figure 5 includes multiple signal sensing antennas, multiple near-field communication antennas, and one or more control chips. At least two of the signal sensing antennas sense nearby objects. The control chip selects the near-field communication antenna closest to the object from among the multiple near-field communication antennas based on the difference in signal strength sensed by the at least two signal sensing antennas, and designates it as the target near-field communication antenna. The target near-field communication antenna establishes communication with the object to perform service interaction.

[0079] These devices can be carried using rigid PCBs or flexible circuit boards, or a combination of both, connected together via connectors.

[0080] In antenna layout, to achieve a better sensing range and facilitate better coordination between the signal sensing antenna and the near-field communication antenna, multiple signal sensing antennas can be circumferentially distributed on the near-field communication device, positioned towards the outer edge. Similarly, multiple near-field communication antennas can be circumferentially distributed on the near-field communication device, positioned towards the inner edge. Regarding the control chip layout, these antennas can be controlled uniformly, or multiple sub-control chips can be used for distributed control. The specific connection structure is also diverse, and the choice depends on actual needs. For a visual reference, see the five specific implementation examples in Figures 6 to 10.

[0081] Figure 6 is a schematic diagram of the specific structure of a first near-field communication device in an application scenario provided by one or more embodiments of this specification.

[0082] In Figure 6, the number of signal sensing antennas (8) is greater than the number of near-field communication antennas, and a control structure is adopted to directly control all antennas with a single control chip. When the mobile phone approaches the near-field communication device from direction 1, signal sensing antennas 1, 2, and 3 will simultaneously sense the signal emitted by the mobile phone's communication coil. Combining the signal strength sensed by signal sensing antennas 1, 2, and 3, the control chip determines that the mobile phone's near-field communication antenna is closer to the near-field communication antenna 1 of the near-field communication device. The control chip then forms control logic to amplify the signal of near-field communication antenna 1 while simultaneously turning off the control signals of near-field communication antennas 2, 3, and 4. In this case, near-field communication antenna 1 can establish communication with the mobile phone's near-field communication antenna for data transmission.

[0083] Similarly, when the mobile phone approaches the near-field communication device from direction 2, the near-field communication antenna 2 of the near-field communication device can establish communication with the near-field communication antenna of the mobile phone; when the mobile phone approaches the near-field communication device from direction 3, the near-field communication antenna 3 of the near-field communication device can establish communication with the near-field communication antenna of the mobile phone.

[0084] A socket can be reserved on the near-field communication device to facilitate the expansion of the signal sensing antenna or near-field communication antenna by plugging it in.

[0085] Figure 7 is a schematic diagram of the specific structure of a second near-field communication device in an application scenario provided by one or more embodiments of this specification.

[0086] The antenna layout and its working logic in Figure 7 are largely the same as in Figure 6. The main difference lies in the control chip layout. Control chip 1 controls the signal sensing antenna, while control chip 2 controls the near-field communication antenna of the near-field communication device. Control chip 1 receives signals from different signal sensing antennas, makes a judgment, and then transmits the judgment result to control chip 2. Control chip 2 then controls which near-field communication antenna of the near-field communication device establishes communication with the near-field communication antenna of the mobile phone based on the result. This separate control method reduces the workload of the control chip and also reduces the coupling between the structures involved in different types of antennas, making it easier to expand.

[0087] Figure 8 is a schematic diagram of the specific structure of a third near-field communication device in an application scenario provided by one or more embodiments of this specification.

[0088] In Figure 8, the control chip adopts a unified direct control scheme, while the antenna layout has been changed. The signal sensing antenna and the near-field communication antenna on the near-field communication device are deployed in a one-to-one correspondence, with the signal sensing antenna and its corresponding near-field communication antenna positioned close together. This facilitates more efficient identification of the target near-field communication antenna. For example, based on the differences in signal strength sensed by multiple signal sensing antennas, the approach direction of the sensing object relative to the near-field communication device can be determined. Based on this approach direction, among the multiple near-field communication antennas deployed on the near-field communication device, the near-field communication antenna closest to the sensing object is selected. Since the signal sensing antenna and its corresponding near-field antenna are very close and their directions relative to the sensing object are essentially the same, it is more convenient to use the near-field communication antenna corresponding to the signal sensing antenna with the strongest sensed signal as the target near-field communication antenna.

[0089] In Figure 8, when the mobile phone approaches the near-field communication device from direction 1, signal sensing antennas 2, 3, and 4 will simultaneously sense the signal emitted by the mobile phone's communication coil. Due to differences in distance from the mobile phone's near-field communication antenna, the signal strength sensed by antennas 2, 3, and 4 varies. Based on the collected signals, the control chip determines that the mobile phone's near-field communication antenna is closer to antenna 3 of the near-field communication device. The control chip then generates control logic to amplify the signal from antenna 3 while simultaneously shutting down the control signals of the other near-field communication antennas. In this situation, near-field communication antenna 3 and the mobile phone's near-field communication... The antenna establishes communication for data transmission. When the mobile phone approaches the near-field communication device from direction 2, signal sensing antennas 1 and 6 simultaneously sense the signal emitted by the mobile phone's communication coil. Due to the difference in distance between signal sensing antennas 1 and 6 and the mobile phone's near-field communication antenna, the signal strength at the bottom of the antennas differs. The control chip determines, based on the collected signals, that the mobile phone's near-field communication antenna is closer to the near-field communication antenna 6 of the near-field communication device. The control chip then forms control logic to enhance the signal of near-field communication antenna 6 while simultaneously shutting down the control signals of the other near-field communication antennas. In this situation, near-field communication antenna 6 establishes communication with the mobile phone's near-field communication antenna for data transmission.

[0090] Figure 9 is a schematic diagram of the specific structure of a fourth near-field communication device in an application scenario provided by one or more embodiments of this specification.

[0091] Figure 9 illustrates a finer-grained control chip layout. A main control chip deployed on the near-field communication (NFC) device controls multiple sub-control chips deployed on the same device. Each sub-control chip corresponds to a pair of signal sensing antennas and a NFC antenna. The sub-control chip controls its corresponding pair of signal sensing antennas and NFC antennas. This facilitates better internal coordination between each pair of antennas and helps reduce the impact on other antennas.

[0092] In Figure 9, when the mobile phone approaches the near-field communication device from direction 1, signal sensing antennas 2, 3, and 4 will simultaneously sense the signal emitted by the mobile phone's communication coil. Control chips 2, 3, and 4 respectively transmit the signals sensed by signal sensing antennas 2, 3, and 4 to the main control chip. Due to the difference in distance from the mobile phone's near-field communication antenna, the signal strength sensed by sensing antennas 2, 3, and 4 varies. The main control chip determines that the mobile phone's near-field communication antenna is closer to the near-field communication antenna 3 of the near-field communication device based on the collected signals. The main control chip forms control logic and transmits control signals to control chips 1, 2, 3, 4, 5, and 6 respectively to enhance the signal of near-field communication antenna 3 and simultaneously shut down the control signals of the other near-field communication antennas. In this case, near-field communication antenna 3 establishes communication with the mobile phone's near-field communication antenna to transmit data.

[0093] When the mobile phone approaches the near-field communication device from direction 2, signal sensing antennas 1 and 6 simultaneously sense the signal emitted by the mobile phone's communication coil. Control chips 1 and 6 respectively transmit the signals sensed by signal sensing antennas 1 and 6 to the main control chip. Because the signal strength varies depending on the distance from the mobile phone's near-field communication antenna, the main control chip determines that the mobile phone's near-field communication antenna is closer to the near-field communication antenna 6 of the near-field communication device based on the collected signals. The control chip then forms control logic and transmits control signals to control chips 1, 2, 3, 4, 5, and 6 respectively to amplify the signal of near-field communication antenna 6 while simultaneously turning off the control signals of the other near-field communication antennas. In this situation, near-field communication antenna 6 establishes communication with the mobile phone's near-field communication antenna to transmit data.

[0094] Figure 10 is a schematic diagram of the specific structure of a fifth near-field communication device in an application scenario provided by one or more embodiments of this specification.

[0095] Figure 10 shows an alternative control chip layout scheme, in which the main control chip directly controls the near-field communication antenna, and the sub-control chip controls the signal sensing antenna.

[0096] In Figure 9, when the mobile phone approaches the near-field communication device from direction 1, signal sensing antennas 2, 3, and 4 will simultaneously sense the signal emitted by the mobile phone's communication coil. Control chips 2, 3, and 4 respectively transmit the signals sensed by signal sensing antennas 2, 3, and 4 to the main control chip. Due to the difference in distance from the mobile phone's near-field communication antennas, the signal strength sensed by sensing antennas 2, 3, and 4 varies. The main control chip determines that the mobile phone's near-field communication antenna is closer to the near-field communication antenna 3 of the near-field communication device based on the collected signals. The main control chip then forms control logic to enhance the signal of near-field communication antenna 3 while simultaneously shutting down the control signals of the other near-field communication antennas. In this case, near-field communication antenna 3 establishes communication with the mobile phone's near-field communication antenna to transmit data.

[0097] When the mobile phone approaches the near-field communication device from direction 2, signal sensing antennas 1 and 6 simultaneously sense the signal emitted by the mobile phone's communication coil. Control chips 1 and 6 respectively transmit the signals sensed by signal sensing antennas 1 and 6 to the main control chip. Because the signal strength varies depending on the distance from the mobile phone's near-field communication antenna, the main control chip determines that the mobile phone's near-field communication antenna is closer to the near-field communication antenna 6 of the near-field communication device based on the collected signals. The control chip then forms control logic to enhance the signal of near-field communication antenna 6 and simultaneously shut down the control signals of the other near-field communication antennas. In this case, near-field communication antenna 6 establishes communication with the mobile phone's near-field communication antenna to transmit data.

[0098] Of course, in addition to the exemplary layouts shown in Figures 6 to 10, there are many other specific layout options that can be selected and implemented as needed.

[0099] In one or more embodiments of this specification, when multiple signal sensing antennas are arranged circumferentially, the near-field communication device may also have a corresponding screen (e.g., around the circumference) on the circumference. The screen can visually display the sensing capability of the signal sensing antennas in graphical form. For example, the more the graphic protrudes outward at a corresponding position, the higher the sensing capability. This allows the user to intuitively move closer to the protruding part, which helps to improve the sensing success rate. Furthermore, near-field communication devices can dynamically adjust the sensing capabilities of multiple signal sensing antennas based on sensing conditions over a period of time (e.g., by increasing signal power or dynamically changing antenna shape). For different signal sensing antennas, visual graphic shapes displayed on the screen (e.g., corresponding graphic shapes can be designed based on relevant business elements, or text prompts can be used) can be used to indicate different services. In this case, users can refer to the graphic shape of the sensing object and, based on the available services (e.g., payment, discount redemption, advertising, content download, etc.), approach the graphic shape corresponding to the target service, i.e., approach the signal sensing antenna corresponding to that graphic shape. Thus, the subsequent business interaction will be the interaction of that target service, rather than other business interactions.

[0100] This visual graphical aid makes sensing capabilities more intuitive, while also allowing users to flexibly select services and facilitating efficient business execution.

[0101] Based on the same approach, one or more embodiments of this specification also provide apparatus and devices corresponding to the above methods, as shown in Figures 11 and 12. The apparatus and devices are capable of executing the above methods and related optional solutions accordingly.

[0102] Figure 11 is a schematic diagram of an interactive processing device based on near-field communication provided in one or more embodiments of this specification. The device includes: a multi-antenna sensing module 1102, which senses nearby objects through multiple signal sensing antennas deployed on a near-field communication device; a near-field communication antenna filtering module 1104, which selects the near-field communication antenna closest to the sensed object from among the multiple near-field communication antennas deployed on the near-field communication device, based on the differences in signal strength sensed by the multiple signal sensing antennas, as the target near-field communication antenna; and a near-field communication service interaction module 1106, which establishes communication with the sensed object through the target near-field communication antenna to perform service interaction.

[0103] Optionally, it also includes: an antenna signal control module 1108, which selects the near-field communication antenna closest to the sensing object from among the multiple near-field communication antennas deployed on the near-field communication device as the target near-field communication antenna, and then controls the signal enhancement of the target near-field communication antenna.

[0104] Optionally, it also includes: an antenna signal control module 1108, which, among the multiple near-field communication antennas deployed on the near-field communication device, selects the near-field communication antenna closest to the sensing object as the target near-field communication antenna, and then temporarily shuts down the control signals of the other near-field communication antennas among the multiple near-field communication antennas besides the target near-field communication antenna, or temporarily reduces or shuts down the signals of the other near-field communication antennas among the multiple near-field communication antennas besides the target near-field communication antenna.

[0105] Optionally, it further includes: a low-power mode control module 1110, which detects whether the near-field communication signal of the sensing object has entered a low-power mode through the signal sensing antenna; if so, it enables the near-field communication device to operate in a card reader operating mode and sends a signal to the sensing object in the card reader operating mode so that the near-field communication signal of the sensing object exits the low-power mode.

[0106] Optionally, there are multiple sensing objects that are currently approaching, and they approach the near-field communication device from different directions. The near-field communication service interaction module 1106 establishes communication with multiple sensing objects through multiple target near-field communication antennas to perform service interaction simultaneously.

[0107] Optionally, the near-field communication device is a near-field communication cash register device; the near-field communication service interaction module 1106 determines the amount to be paid for the current order; the amount to be paid is split and sent to multiple sensing objects through the established communication, so that each sensing object pays a portion of the split amount to be paid.

[0108] Optionally, the near-field communication antenna screening module 1104, based on the difference in signal strength sensed by at least three signal sensing antennas deployed at different locations, screens the near-field communication antennas that are closest to the sensing object from among the multiple near-field communication antennas deployed on the near-field communication device.

[0109] Optionally, the near-field communication antenna screening module 1104 determines the approach direction of the sensing object toward the near-field communication device based on the differences in signal strength sensed by the plurality of signal sensing antennas.

[0110] Based on the approach direction, among the multiple near-field communication antennas deployed on the near-field communication device, the near-field communication antenna closest to the sensing object is selected.

[0111] Optionally, the multiple signal sensing antennas deployed on the near-field communication device are distributed on the outer side; and / or, the multiple near-field communication antennas deployed on the near-field communication device are distributed on the inner side.

[0112] Optionally, the plurality of signal sensing antennas are circumferentially distributed in the near-field communication device; and / or, the plurality of near-field communication antennas are circumferentially distributed in the near-field communication device.

[0113] Optionally, the signal sensing antenna and the near-field communication antenna on the near-field communication device are deployed in a one-to-one correspondence, and the signal sensing antenna and its corresponding near-field communication antenna are deployed close to each other.

[0114] Optionally, it further includes: an antenna signal control module 1108, which controls multiple sub-control chips deployed on the near-field communication device through a main control chip deployed on the near-field communication device, wherein each sub-control chip corresponds to a pair of signal sensing antennas and a near-field communication antenna; and controls its corresponding pair of signal sensing antennas and near-field communication antennas through the sub-control chip.

[0115] Optionally, the number of signal sensing antennas deployed on the near-field communication device is greater than the number of near-field communication antennas.

[0116] Figure 12 is a schematic diagram of a near-field communication device provided in one or more embodiments of this specification. The device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein...

[0117] The memory stores instructions executable by the at least one processor. These instructions, when executed by the at least one processor, enable the at least one processor to perform the following: sensing nearby objects using multiple signal sensing antennas deployed on the near-field communication device; selecting the near-field communication antenna closest to the object from among the multiple near-field communication antennas deployed on the near-field communication device based on the differences in signal strength sensed by the multiple signal sensing antennas, and designating it as the target near-field communication antenna; and establishing communication with the object through the target near-field communication antenna to perform service interaction.

[0118] Based on the same idea, one or more embodiments of this specification also provide a non-volatile computer storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured as follows:

[0119] Multiple signal sensing antennas deployed on the near-field communication device are used to sense the currently approaching objects.

[0120] Based on the differences in signal strength sensed by the multiple signal sensing antennas, the near-field communication antenna closest to the sensing object is selected from among the multiple near-field communication antennas deployed on the near-field communication device and used as the target near-field communication antenna.

[0121] Communication is established with the sensed object through the target near-field communication antenna to conduct service interaction.

[0122] In the 1990s, improvements to a technology could be clearly distinguished as either hardware improvements (e.g., improvements to the circuit structure of diodes, transistors, switches, etc.) or software improvements (improvements to the methodology). However, with technological advancements, many methodological improvements today can be considered direct improvements to the hardware circuit structure. Designers almost always obtain the corresponding hardware circuit structure by programming the improved methodology into the hardware circuit. Therefore, it cannot be said that a methodological improvement cannot be implemented using hardware physical modules. For example, a Programmable Logic Device (PLD) (such as a Field Programmable Gate Array (FPGA)) is such an integrated circuit whose logic function is determined by the user programming the device. Designers can program and "integrate" a digital system onto a PLD themselves, without needing chip manufacturers to design and manufacture dedicated integrated circuit chips. Furthermore, nowadays, instead of manually manufacturing integrated circuit chips, this programming is mostly implemented using "logic compiler" software. Similar to the software compiler used in program development, the original code before compilation must also be written in a specific programming language, called a Hardware Description Language (HDL). There are many HDLs, such as ABEL (Advanced Boolean Expression Language), AHDL (Altera Hardware Description Language), Confluence, CUPL (Cornell University Programming Language), HDCal, JHDL (Java Hardware Description Language), Lava, Lola, MyHDL, PALASM, and RHDL (Ruby Hardware Description Language). Currently, the most commonly used are VHDL (Very-High-Speed ​​Integrated Circuit Hardware Description Language) and Verilog. Those skilled in the art should also understand that by simply performing some logic programming on the method flow using one of these hardware description languages ​​and programming it into an integrated circuit, the hardware circuit implementing the logical method flow can be easily obtained.

[0123] The controller can be implemented in any suitable manner. For example, it can take the form of a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro)processor, logic gates, switches, application-specific integrated circuits (ASICs), programmable logic controllers, and embedded microcontrollers. Examples of controllers include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20, and Silicon Labs C8051F320. A memory controller can also be implemented as part of the control logic of the memory. Those skilled in the art will also recognize that, in addition to implementing the controller in purely computer-readable program code form, the same functionality can be achieved by logically programming the method steps to make the controller take the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers. Therefore, such a controller can be considered a hardware component, and the means included therein for implementing various functions can also be considered as structures within the hardware component. Alternatively, the means for implementing various functions can be considered as both software modules implementing the method and structures within the hardware component.

[0124] The systems, devices, modules, or units described in the above embodiments can be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, a computer can be, for example, a personal computer, laptop computer, cellular phone, camera phone, smartphone, personal digital assistant, media player, navigation device, email device, game console, tablet computer, wearable device, or any combination of these devices.

[0125] For ease of description, the above devices are described in terms of function, divided into various units. Of course, in implementing this specification, the functions of each unit can be implemented in one or more software and / or hardware components.

[0126] Those skilled in the art will understand that the embodiments of this specification can be provided as methods, systems, or computer program products. Therefore, the embodiments of this specification can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the embodiments of this specification can take the form of a computer program product implemented 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.

[0127] This specification is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this specification. 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 means for implementing the functions specified in one or more flowchart illustrations and / or one or more block diagrams.

[0128] 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 that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0129] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0130] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0131] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0132] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0133] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0134] This specification can be described in the general context of computer-executable instructions that are executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform a specific task or implement a specific abstract data type. This specification can also be practiced in distributed computing environments, where tasks are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer storage media, including storage devices.

[0135] 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 embodiments of apparatus, devices, and non-volatile computer storage media are basically similar to the method embodiments, so the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0136] The foregoing has described specific embodiments of this specification. 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 that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0137] The above description is merely one or more embodiments of this specification and is not intended to limit this specification. Various modifications and variations can be made to the one or more embodiments of this specification by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of one or more embodiments of this specification should be included within the scope of the claims of this specification.

Claims

1. A method for processing interaction based on near field communication, comprising: sensing a current close-in sensing object by a plurality of signal sensing antennas deployed on a near field communication device; selecting a near field communication antenna close to the sensing object as a target near field communication antenna from a plurality of near field communication antennas deployed on the near field communication device according to a difference in signal strength sensed by the plurality of signal sensing antennas respectively; establishing communication with the sensing object by the target near field communication antenna to conduct business interaction. 2.The method of claim 1, after the selecting a near field communication antenna close to the sensing object as a target near field communication antenna from a plurality of near field communication antennas deployed on the near field communication device according to a difference in signal strength sensed by the plurality of signal sensing antennas respectively, the method further comprises: controlling signal enhancement of the target near field communication antenna. 3.The method of claim 1, after the selecting a near field communication antenna close to the sensing object as a target near field communication antenna from a plurality of near field communication antennas deployed on the near field communication device according to a difference in signal strength sensed by the plurality of signal sensing antennas respectively, the method further comprises: temporarily shutting down control signals of other near field communication antennas except the target near field communication antenna from the plurality of near field communication antennas, or temporarily reducing or shutting down signals of other near field communication antennas except the target near field communication antenna from the plurality of near field communication antennas. 4.The method of claim 1, further comprising: detecting whether a near field communication signal of the sensing object enters a low power consumption mode by the signal sensing antenna; if yes, making the near field communication device work in a card reader working mode, and sending a signal to the sensing object in the card reader working mode to make the near field communication signal of the sensing object exit the low power consumption mode. 5.The method of claim 1, the current close-in sensing object has a plurality of sensing objects respectively approaching the near field communication device from different directions; the establishing communication with the sensing object by the plurality of target near field communication antennas to conduct business interaction specifically comprises: correspondingly establishing communication with a plurality of the sensing objects by different target near field communication antennas to simultaneously conduct business interaction. 6.The method of claim 5, the near field communication device is a near field communication cash register device; the simultaneously conducting business interaction specifically comprises: determining a to-be-paid amount of a current order; splitting the to-be-paid amount and sending the to-be-paid amount to a plurality of the sensing objects through the established communication to make each of the sensing objects pay a part of the to-be-paid amount received. 7.The method of claim 1, the selecting a near field communication antenna close to the sensing object from a plurality of near field communication antennas deployed on the near field communication device according to a difference in signal strength sensed by the plurality of signal sensing antennas respectively specifically comprises: selecting a near field communication antenna close to the sensing object from a plurality of near field communication antennas deployed on the near field communication device according to a difference in signal strength sensed by at least three signal sensing antennas deployed at different positions respectively.

8. The method of claim 1, wherein the selecting, according to the difference between the signal strengths sensed by the plurality of signal sensing antennas, the near-field communication antenna close to the inductive object from the plurality of near-field communication antennas deployed on the near-field communication device, comprises: determining a direction of approach of the inductive object to the near-field communication device according to the difference between the signal strengths sensed by the plurality of signal sensing antennas; and selecting the near-field communication antenna close to the inductive object from the plurality of near-field communication antennas deployed on the near-field communication device according to the direction of approach.

9. The method of claim 1, wherein the plurality of signal sensing antennas are dispersed on an outer side of the near-field communication device; and / or the plurality of near-field communication antennas are dispersed on an inner side of the near-field communication device.

10. The method of claim 9, wherein the plurality of signal sensing antennas are dispersed on a circumference of the near-field communication device; and / or the plurality of near-field communication antennas are dispersed on the circumference of the near-field communication device.

11. The method of claim 1, wherein the signal sensing antennas and the near-field communication antennas are one-to-one corresponding on the near-field communication device, and the signal sensing antennas and the corresponding near-field communication antennas are disposed close to each other.

12. The method of claim 11, further comprising: controlling, by a master chip deployed on the near-field communication device, a plurality of slave chips deployed on the near-field communication device, wherein each of the slave chips corresponds to a pair of signal sensing antenna and near-field communication antenna; and controlling, by the slave chip, the pair of signal sensing antenna and near-field communication antenna corresponding to the slave chip.

13. The method of claim 1, wherein the number of signal sensing antennas deployed on the near-field communication device is greater than the number of near-field communication antennas.

14. An apparatus for processing near-field communication interaction, comprising: a plurality of signal sensing antennas deployed on a near-field communication device, for sensing an inductive object currently close thereto; a near-field communication antenna selecting module, for selecting, according to the difference between the signal strengths sensed by the plurality of signal sensing antennas, a near-field communication antenna close to the inductive object from a plurality of near-field communication antennas deployed on the near-field communication device, as a target near-field communication antenna; and a near-field communication service interaction module, for establishing communication with the inductive object through the target near-field communication antenna to perform service interaction.

15. The apparatus of claim 14, further comprising: an antenna signal control module, for controlling signal enhancement of the target near-field communication antenna after the target near-field communication antenna is selected from the plurality of near-field communication antennas deployed on the near-field communication device.

16. The apparatus of claim 14, further comprising: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The antenna signal control module screens a near-field communication antenna close to the inductive object from a plurality of near-field communication antennas deployed on the near-field communication device as a target near-field communication antenna, and then temporarily closes a control signal of the other near-field communication antennas except the target near-field communication antenna in the plurality of near-field communication antennas, or temporarily reduces or closes the signal of the other near-field communication antennas except the target near-field communication antenna in the plurality of near-field communication antennas.

17. The apparatus of claim 14, further comprising: The low-power mode control module detects whether the inductive object's near-field communication signal enters a low-power mode through the signal induction antenna; If yes, the near-field communication device works in a card reader mode, and sends a signal to the inductive object in the card reader mode to make the inductive object's near-field communication signal exit the low-power mode.

18. The apparatus of claim 14, wherein the inductive object currently close to the near-field communication device is multiple, and approaches the near-field communication device from different directions respectively; The near-field communication service interaction module correspondingly establishes communication with the multiple inductive objects through the multiple target near-field communication antennas to simultaneously perform service interaction.

19. The apparatus of claim 18, wherein the near-field communication device is a near-field communication cash register device; The near-field communication service interaction module determines the amount of money to be paid of a current order; The amount of money to be paid is split, and is sent to the multiple inductive objects through the established communication to make the inductive objects respectively pay a part of the amount of money to be paid received.

20. The apparatus of claim 14, wherein the multiple signal induction antennas deployed on the near-field communication device are dispersedly deployed on the outer side; and / or, The multiple near-field communication antennas deployed on the near-field communication device are dispersedly deployed on the inner side.

21. The apparatus of claim 20, wherein the multiple signal induction antennas are dispersedly deployed on the near-field communication device in a circumferential direction; and / or, The multiple near-field communication antennas are dispersedly deployed on the near-field communication device in a circumferential direction.

22. The apparatus of claim 14, wherein the signal induction antenna and the near-field communication antenna on the near-field communication device are one-to-one correspondingly deployed, and the signal induction antenna and the corresponding near-field communication antenna are close to each other in position.

23. The apparatus of claim 14, wherein the number of signal induction antennas deployed on the near-field communication device is greater than the number of near-field communication antennas.

24. A near-field communication device, comprising a plurality of signal induction antennas, a plurality of near-field communication antennas, and one or more control chips; At least two signal induction antennas respectively induct an inductive object currently close to the near-field communication device; The control chip screens a near-field communication antenna close to the inductive object from the plurality of near-field communication antennas as a target near-field communication antenna according to the difference of signal strength inducted by the at least two signal induction antennas respectively; The target near-field communication antenna establishes communication with the inductive object to perform service interaction. 25.A near field communication device, comprising: at least one processor; and a memory in communication with the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform: sensing, by a plurality of signal sensing antennas deployed on the near field communication device, a current close-in sensing object; selecting, according to a difference in signal strength sensed by the plurality of signal sensing antennas respectively, a near field communication antenna close to the sensing object from a plurality of near field communication antennas deployed on the near field communication device as a target near field communication antenna; establishing, by the target near field communication antenna, communication with the sensing object to perform service interaction.

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