Control method and apparatus for vehicle-mounted NFC module, and vehicle

Abstract

A vehicle, having a control apparatus for a vehicle-mounted NFC module. The control apparatus for a vehicle-mounted NFC module uses a control method for a vehicle-mounted NFC module. The method comprises: determining that a mobile terminal is located within a preset distance range of a vehicle-mounted NFC module; and suppressing the signal strength of the vehicle-mounted NFC module, so as to reduce the occurrence of the mobile terminal accidentally popping up an NFC interface.

Description

Control methods, devices, and vehicles for in-vehicle NFC modules

[0001] Cross-references to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 202411020085.X, filed on July 29, 2024, entitled "Control Method, Apparatus and Vehicle for Vehicle-mounted NFC Module", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of vehicle communication control technology, and in particular to a control method, device, and vehicle for an on-board NFC module. Background Technology

[0004] In related technologies, to facilitate driver use, the WCM (Wireless Charging Module) and NCM (Near Field Communication Module) are usually located very close to each other or integrated together. When the user activates the NCM, the NFC (Near Field Communication) signal emitted by the NCM may interfere with the charging mobile terminal, causing the mobile terminal to unexpectedly pop up the NFC verification interface. This not only affects the user experience but may also cause potential damage to the device.

[0005] Public content

[0006] The purpose of this disclosure is to provide a control method, device, and vehicle for an in-vehicle NFC module to prevent mobile terminals from accidentally displaying the NFC interface and improve user experience.

[0007] To achieve the above objectives, in a first aspect, this disclosure provides a control method for an in-vehicle NFC module, comprising:

[0008] Ensure the mobile terminal is within the preset distance range of the vehicle-mounted NFC module;

[0009] Suppress the signal strength of the vehicle's NFC module to reduce the chance of mobile terminals accidentally displaying the NFC interface.

[0010] Optionally, determining that the mobile terminal is within a preset distance range of the vehicle-mounted NFC module includes:

[0011] Obtain detection information for mobile terminals;

[0012] Based on the detection information, it was determined that the mobile terminal was within the preset distance range of the vehicle-mounted NFC module.

[0013] Optionally, an onboard wireless charger is positioned within a preset distance range of the onboard NFC module, or the onboard NFC module and the onboard wireless charger are integrated together, and the detection information for the mobile terminal includes:

[0014] Detection information for mobile terminals can be obtained through the vehicle's NFC module and / or vehicle wireless charger.

[0015] Optionally, the detection information includes at least one of the following:

[0016] Charging status information indicates the charging status of the vehicle wireless charger for the mobile terminal.

[0017] Weight detection information is used to indicate the weight detected by the vehicle's NFC module or wireless charger for the mobile terminal.

[0018] Pressure detection information is used to indicate the pressure detected by the mobile terminal by the vehicle's NFC module or vehicle wireless charger.

[0019] Location detection information is used to indicate the relative position of the vehicle's NFC module or vehicle's wireless charger to the mobile terminal.

[0020] Optionally, determining that the mobile terminal is within a preset distance range of the vehicle-mounted NFC module based on the detection information includes:

[0021] When the charging status information indicates that the vehicle wireless charger is in a charging state or waiting to be charged, it is determined that the mobile terminal is within a preset distance range of the vehicle NFC module.

[0022] Optionally, the method further includes:

[0023] When the vehicle is powered off, it sends out detection signals through the onboard wireless charger according to a preset transmission cycle.

[0024] Upon receiving a return signal from the mobile terminal, it is determined that the vehicle-mounted wireless charger is in a ready-to-charge state.

[0025] Optionally, the method further includes:

[0026] When the vehicle is powered on and the onboard wireless charger has established a charging connection with the mobile terminal, it is determined that the onboard wireless charger is in a charging state.

[0027] Optionally, suppressing the signal strength of the on-board NFC module includes:

[0028] The signal strength of the on-board NFC module is suppressed by reducing the field strength voltage and / or signal transmission power of the on-board NFC module.

[0029] Optionally, before determining that the mobile terminal is within a preset distance range of the in-vehicle NFC module, the process includes:

[0030] In response to the activation control of the vehicle NFC module, the vehicle NFC module is switched from a low-power state to an active state.

[0031] Secondly, this disclosure also provides a control device for an in-vehicle NFC module, comprising:

[0032] A memory on which computer programs are stored;

[0033] A processor for executing a computer program in memory to implement the method of the first aspect of this disclosure.

[0034] Thirdly, this disclosure also provides a vehicle, including an onboard wireless charger and an onboard NFC module;

[0035] The vehicle-mounted NFC module is used to obtain detection information from the vehicle-mounted wireless charger for the mobile terminal. When the detection information determines that the mobile terminal is within a preset distance range of the vehicle-mounted NFC module, the signal strength of the vehicle-mounted NFC module is suppressed to reduce the possibility of the mobile terminal accidentally popping up the NFC interface.

[0036] By detecting the mobile terminal using the above method, the vehicle-mounted NFC module can be controlled to send NFC signals of different strengths when activated, thus avoiding the phenomenon of the mobile terminal accidentally popping up the NFC interface, improving the user experience, and enhancing the stability and reliability of the vehicle-mounted NFC module.

[0037] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0038] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0039] Figure 1 is a flowchart of a control method for an in-vehicle NFC module according to an exemplary embodiment of the present disclosure.

[0040] Figure 2 is a schematic diagram of the arrangement of an in-vehicle NFC module and a wireless charging module according to an exemplary embodiment of the present disclosure.

[0041] Figure 3 is a voltage timing diagram of a first operating mode proposed in an exemplary embodiment of the present disclosure.

[0042] Figure 4 is a voltage timing diagram of a second operating mode proposed in an exemplary embodiment of the present disclosure.

[0043] Figure 5 is a block diagram of a control device for an in-vehicle NFC module according to an exemplary embodiment of the present disclosure.

[0044] Figure 6 is a block diagram of a vehicle according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0045] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0046] With the widespread use of mobile devices in daily life, WCM and NCM have become important components in vehicles. In related technical solutions, to address the issue of mobile devices accidentally popping up the NFC interface, the in-vehicle NFC module (NCM) typically uses a combination of LPCD (Low Power Card Detection) and Polling modes. When NFC functionality is not triggered, the NCM is in LPCD mode. LPCD mode is used to periodically wake up in a low-power state to detect potential NFC transactions, aiming to minimize power consumption while maintaining awareness of the PICC (Passive Integrated Circuit Card). When the NCM detects potential NFC activity in LPCD mode, such as an NFC-enabled mobile phone approaching the NCM, the NCM switches to Polling mode to improve detection sensitivity and facilitate faster NFC transactions. However, even in LPCD mode, the NCM can switch to Polling mode due to minor disturbances, such as a smartwatch entering the NCM's near-field communication range. This makes it difficult to avoid unexpected card pop-ups and limits the system's stability and reliability.

[0047] In view of this, the present disclosure provides a control method for an in-vehicle NFC module. Figure 1 is a flowchart of a control method for an in-vehicle NFC module according to an exemplary embodiment of the present disclosure. Referring to Figure 1, the method includes:

[0048] Step S11: Determine that the mobile terminal is within the preset distance range of the vehicle-mounted NFC module.

[0049] Step S12: Suppress the signal strength of the vehicle-mounted NFC module to reduce the chance of the mobile terminal accidentally popping up the NFC interface.

[0050] It's worth noting that the mobile terminal can be a smartphone, watch, or tablet with NFC functionality. The in-vehicle NFC module is used for vehicle start-up and authorization functions. Given these functions, for driver convenience, the in-vehicle NFC module is typically installed near the vehicle's dashboard. In some scenarios, the driver's mobile terminal is usually placed on a mobile terminal holder or in-vehicle wireless charger for easy navigation or charging. These holders are also located near the dashboard, meaning the mobile terminal and the in-vehicle NFC module may be very close. Some vehicles have separate in-vehicle wireless chargers and in-vehicle NFC modules. The modules are even integrated together. When the user does not perform activation control, the vehicle NFC module is in a low-power state or a powered-off state. At this time, the vehicle NFC module will not send NFC signals. If the signal generated by the user's activation control is detected, the vehicle NFC module is activated and sends NFC signals. Mobile terminals within its communication range will pop up an NFC verification interface, such as mobile terminals placed on mobile terminal holders or in-vehicle wireless chargers. Since some mobile terminals do not have vehicle NFC verification functions, or users need to use vehicle keys or NFC cards to complete the vehicle's NFC function verification, the frequent pop-up of the NFC verification interface by mobile terminals seriously affects the user experience.

[0051] In one implementation, when the vehicle-mounted NFC module is activated, the strength of the NFC signal to be transmitted can be determined based on whether a mobile terminal is present within its preset distance range, thereby transmitting NFC signals of different strengths.

[0052] The preset distance range can be determined based on the near-field communication range of the vehicle's NFC module.

[0053] If no mobile terminal is detected within the preset distance range of the vehicle NFC module, the signal strength of the vehicle NFC module is not suppressed, and the NFC signal is sent out with the preset normal signal strength. If a mobile terminal is detected within the preset distance range of the vehicle NFC module, the signal strength sent out by the vehicle NFC module is suppressed, so as to reduce the communication distance of the vehicle NFC module and prevent mobile terminals within its preset distance range from accidentally popping up the NFC interface.

[0054] For example, without suppressing the signal strength of the vehicle NFC module, the preset communication distance corresponding to the normal signal strength is 10cm. With the signal strength of the vehicle NFC module suppressed, the communication distance of the vehicle NFC module is 3cm, so that the mobile terminal will not accidentally pop up the NFC interface. If the user needs to complete NFC verification with the mobile terminal or NFC card, the mobile terminal or NFC card can be kept close to the vehicle NFC module until the mobile terminal or NFC card is within the communication distance range suppressed by the vehicle NFC module.

[0055] By detecting the mobile terminal using the above method, the vehicle-mounted NFC module can be controlled to send NFC signals of different strengths when activated, thus avoiding the phenomenon of the mobile terminal accidentally popping up the NFC interface, improving the user experience, and enhancing the stability and reliability of the vehicle-mounted NFC module.

[0056] Optionally, determining that the mobile terminal is within a preset distance range of the vehicle-mounted NFC module includes:

[0057] Obtain detection information for the mobile terminal.

[0058] Based on the detection information, it is determined that the mobile terminal is within a preset distance range of the vehicle-mounted NFC module.

[0059] In one embodiment, the detection information of the mobile terminal can be obtained directly through the vehicle-mounted NFC module, or through other vehicle-mounted devices, to determine whether a mobile terminal exists within a preset distance range of the vehicle-mounted NFC module. Other vehicle-mounted devices include at least one of the following adjacent to the vehicle-mounted NFC module: a vehicle-mounted wireless charger, a position sensor, a pressure sensor, a signal sensor, and an image sensor.

[0060] Detecting mobile terminals when the vehicle NFC module is activated can increase the preset verification distance of the vehicle NFC module without the mobile terminal accidentally popping up the NFC verification interface. For example, if there are no mobile terminals within the preset distance range of the vehicle NFC module, the preset verification distance of the vehicle NFC module can be set to be larger, so that users can complete NFC verification without bringing the NFC card close to the vehicle NFC module, which significantly improves the user experience.

[0061] Optionally, an in-vehicle wireless charger is arranged within the preset distance range of the in-vehicle NFC module, or the in-vehicle NFC module and the in-vehicle wireless charger are integrated together.

[0062] In one embodiment, as shown in Figure 2, the vehicle NFC module and the vehicle wireless charger are arranged side by side on the vehicle's dashboard. The vehicle NFC module provides users with services such as start authorization and NFC key activation, while the vehicle wireless charger provides wireless charging services for user devices. When the vehicle NFC module is activated, the mobile terminal on the vehicle wireless charger accidentally pops up the NFC card eject interface.

[0063] The acquisition of detection information for the mobile terminal includes:

[0064] The detection information for the mobile terminal is obtained through the vehicle-mounted NFC module and / or the vehicle-mounted wireless charger.

[0065] In one implementation, the detection information of the mobile terminal can be directly obtained through the vehicle-mounted NFC module to determine whether the mobile terminal exists within a preset distance range.

[0066] For example, the preset detection distance of the vehicle NFC module is greater than the preset verification distance. The preset detection distance is the maximum distance at which the vehicle NFC module can detect other NFC devices or tags, such as 15cm. The preset verification distance is the maximum distance at which the vehicle NFC module can complete verification or transactions with other NFC devices or tags, such as 10cm. After the vehicle NFC module is activated, it continuously detects whether there is a mobile terminal within the range corresponding to its detection distance through high-frequency wireless signals to determine the detection information.

[0067] In another implementation, since users typically place their phones on the in-vehicle wireless charger, the presence of a mobile terminal within a preset distance range of the in-vehicle NFC module can be determined by the in-vehicle wireless charger. For example, a position sensor or pressure sensor can be installed on the in-vehicle wireless charger to obtain detection information of the mobile terminal.

[0068] In another implementation, the detection information for the mobile terminal can be determined by the vehicle NFC module in collaboration with other vehicle devices. For example, the vehicle NFC module can obtain the first detection information for the mobile terminal, and then the second detection information obtained by the vehicle wireless charger can be used to verify the first detection information to determine whether there is a mobile terminal within the preset distance range of the vehicle NFC.

[0069] Obtaining detection information through the above methods can improve the accuracy and reliability of mobile terminal detection, and provide effective data support for signal strength control of vehicle-mounted NFC modules.

[0070] Optionally, the detection information includes at least one of the following:

[0071] First, charging status information, which is used to indicate the charging status of the vehicle-mounted wireless charger for the mobile terminal.

[0072] It's worth noting that in-car wireless chargers are devices used to wirelessly charge mobile devices inside a car. They typically use Qi wireless charging technology, which is based on the principle of electromagnetic induction. Energy is transferred through the electromagnetic field between induction coils to achieve wireless charging. Based on Qi wireless charging technology, the charging process mainly includes four stages: Ping (probing stage), Configuration stage, Negotiation stage, and Power Transfer stage.

[0073] During the detection phase, when the TX (Transmitter) of the in-vehicle wireless charger is activated or a potential charging demand is detected, the in-vehicle wireless charger initiates the Ping phase. During the Ping phase, the in-vehicle wireless charger emits specific signals, such as RF (Radio Frequency) signals or magnetic field change signals, to detect whether there is a compatible RX (Receiver) within the operating range of the in-vehicle charger, such as a mobile phone's power receiver, and attempts to establish communication with the mobile terminal's RX. When the mobile terminal's RX enters the signal range of the TX and receives the signal sent by the TX, the RX sends a return signal to the TX in response. After the TX receives the return signal sent by the RX, the in-vehicle wireless charger begins to identify whether the mobile terminal is a rechargeable device and performs foreign object detection. If the RX identifies the mobile terminal as a rechargeable device and there is no foreign object interference, the TX and RX establish a stable communication connection and proceed to the next phase.

[0074] During the configuration phase, once the RX of the vehicle-mounted wireless charger and the TX of the mobile terminal establish a communication connection, the necessary parameters are configured, including at least one of the following: communication rate, data format, encoding method, device identity, encryption protocol, security parameters, access control, resource allocation, and service startup.

[0075] During the negotiation phase, the vehicle-mounted wireless charger and the mobile terminal exchange their device information, confirm the protocols or standards they both support, and negotiate specific parameters for the charging connection, such as transmission speed, data packet size, and session mode. At the same time, they also conduct identity authentication and authorization negotiations.

[0076] During the power transfer phase, after identity authentication, TX selects the appropriate power and other parameters based on the device type of RX to charge the mobile terminal.

[0077] In one implementation, if the charging status information indicates that the vehicle wireless charger is charging the mobile terminal, it means that the mobile terminal is within the preset distance range of the vehicle NFC; if the charging status information indicates that the vehicle wireless charger is not charging the mobile terminal, it means that the mobile terminal is not within the preset distance range of the vehicle NFC.

[0078] Second, weight detection information, which is used to indicate the weight detected by the vehicle NFC module or the vehicle wireless charger for the mobile terminal.

[0079] In one implementation, if the weight sensor on the vehicle NFC module or vehicle wireless charger detects that the weight exceeds a preset weight threshold, it is determined that a mobile terminal exists within a preset distance range of the vehicle NFC module.

[0080] Third, pressure detection information, which is used to indicate the pressure detected by the mobile terminal by the vehicle NFC module or the vehicle wireless charger.

[0081] In one embodiment, both the vehicle-mounted wireless charger and the vehicle-mounted NFC module are equipped with a weight sensor and a pressure sensor. The weight sensor and the pressure sensor are used to detect the force generated by placing the mobile terminal. At the same time, based on the weight detection information or the pressure detection signal, the type of device placed on the vehicle-mounted wireless charger can be determined and foreign object detection can be performed.

[0082] Fourth, location detection information, which is used to indicate the relative position of the vehicle-mounted NFC module or the vehicle-mounted wireless charger to the mobile terminal.

[0083] In one embodiment, the vehicle-mounted wireless charger and / or vehicle-mounted NFC module can also determine the relative position of the mobile terminal and the vehicle-mounted wireless charger by at least one of the following methods: electromagnetic induction positioning, optical sensor positioning, magnetic field positioning, and wireless signal positioning. Then, if the relative position is less than or equal to a preset relative position, it is determined that the mobile terminal will be subject to card opening interference from the vehicle-mounted NFC module.

[0084] The above methods can detect mobile terminals in various ways, effectively increasing the accuracy of distance judgment between mobile terminals and vehicle-mounted NFC modules and improving the reliability of signal strength control of vehicle-mounted NFC modules.

[0085] Optionally, determining that the mobile terminal is within a preset distance range of the vehicle-mounted NFC module based on the detection information includes:

[0086] When the charging status information indicates that the vehicle wireless charger is in a charging state or a waiting-to-charge state, it is determined that the mobile terminal is within a preset distance range of the vehicle NFC module.

[0087] In one implementation, the charging state is used to characterize the state in which the vehicle wireless charger is charging the mobile terminal, that is, the vehicle wireless charger is in the aforementioned energy transfer phase. The waiting-to-charge state includes the following situations: First, the mobile terminal has been placed on the vehicle wireless charger, but the vehicle is powered off, and the charging circuit of the vehicle wireless charger is closed and cannot charge the mobile terminal. Second, the configuration phase and negotiation phase after the vehicle wireless charger detects the mobile terminal through the Ping phase and before the vehicle wireless charger enters the energy transfer phase. Third, the vehicle wireless charger's sensing range of the mobile terminal in the Ping phase is greater than the range of the vehicle wireless charger's wireless power transfer to the mobile terminal in the energy transfer phase. In other words, the mobile terminal has been sensed by the vehicle wireless charger, but since it has not reached the wireless charging distance, the vehicle wireless charger is in the waiting-to-charge phase.

[0088] For example, obtaining detection information through an in-vehicle wireless charger to control the signal strength of the in-vehicle NFC module includes the following steps:

[0089] The first step is to obtain the detection information of the mobile terminal through the vehicle wireless charger and send the detection information to the vehicle NFC module through the CAN (Controller Area Network) bus.

[0090] The detection information can be determined based on the charging status of the mobile terminal by the vehicle-mounted wireless charger.

[0091] The second step is for the vehicle's NFC module to determine whether the NFC activation conditions are met.

[0092] The NFC activation conditions of the vehicle NFC module include detecting user activation control, such as detecting user card activation via APP (Application), or detecting user card swiping operation, such as driver pressing the brake or start button.

[0093] If the condition is met, proceed to step three; otherwise, return to step one.

[0094] The third step is for the vehicle-mounted NFC module to receive detection information sent by the vehicle-mounted wireless charger on the CAN bus, and to determine whether the mobile terminal is within the preset distance range of the vehicle-mounted NFC module based on the detection information.

[0095] If yes, proceed to step four; otherwise, return to step one.

[0096] The fourth step is to suppress the signal strength of the vehicle's NFC module.

[0097] When the in-vehicle wireless charger is in charging or waiting-to-charge state, it means that the mobile terminal is within the preset distance range of the in-vehicle NFC module. This avoids the phenomenon of the mobile terminal accidentally popping up the NFC interface, reduces the signal strength of the in-vehicle NFC module, and improves the user experience.

[0098] Optionally, the method further includes:

[0099] When the vehicle is powered off, the on-board wireless charger sends out detection signals according to a preset transmission cycle.

[0100] Upon receiving a return signal from the mobile terminal, it is determined that the vehicle-mounted wireless charger is in the charging-ready state.

[0101] In one implementation, the vehicle is in the OFF position, i.e., the power is off. At this time, the vehicle's power is off, but some devices inside the vehicle are in a low-power standby state, such as the in-vehicle wireless charger. When the in-vehicle wireless charger is in standby mode, it only retains the function of detecting mobile terminals, but the charging circuit is closed. The in-vehicle wireless charger communicates with the mobile terminal and detects the location of the mobile terminal through the Ping stage. For example, if the in-vehicle wireless charger detects that the mobile terminal is placed on the in-vehicle wireless charger, it can determine that the in-vehicle wireless charger is in a charging state. Once the vehicle switches from the OFF position to the ON position, the whole vehicle is powered on, the charging circuit of the in-vehicle wireless charger is turned on, and the in-vehicle wireless charger enters the charging state. The above method can avoid the phenomenon of the mobile terminal placed on the in-vehicle wireless charger accidentally popping up the NFC verification interface when the vehicle is started.

[0102] Optionally, the method further includes:

[0103] When the vehicle is powered on and the onboard wireless charger has established a charging connection with the mobile terminal, the onboard wireless charger is determined to be in the charging state.

[0104] In one embodiment, the user places their mobile phone on the in-vehicle wireless charger to charge. At this time, the in-vehicle wireless charger is charging. If the user activates the in-vehicle NFC module, for example, when the user performs security authentication or personalization settings through the in-vehicle control panel, the in-vehicle NFC module will be activated to verify the user's identity. At this time, the signal strength of the in-vehicle NFC module is suppressed to avoid interfering with the charging mobile phone. The user can complete the NFC transaction by bringing the vehicle start key and / or the vehicle NFC card close to the sensing plate where the in-vehicle NFC module is located.

[0105] The above method can prevent the NFC verification interface from accidentally popping up when a mobile terminal placed on the in-vehicle wireless charger is moved after the vehicle is started.

[0106] Optionally, suppressing the signal strength of the vehicle-mounted NFC module includes:

[0107] The signal strength of the vehicle NFC module is suppressed by reducing the field strength voltage and / or signal transmission power of the vehicle NFC module.

[0108] In one implementation, the signal strength of the vehicle-mounted NFC module can also be reduced by adjusting the modulation depth, communication frequency, and strong signal filtering of the vehicle-mounted NFC module.

[0109] By adjusting the field strength voltage or signal transmission power of the vehicle NFC module, the communication distance of the vehicle NFC module can be adjusted while ensuring the vehicle's NFC verification function, so as to avoid the mobile terminal accidentally popping up the NFC verification interface.

[0110] Optionally, the method further includes:

[0111] Determine whether the mobile terminal is an authentication device.

[0112] When the mobile terminal is the authentication device, stop suppressing the signal strength of the vehicle NFC module.

[0113] The authentication devices include a vehicle owner's terminal with a digital key and a terminal authorized by the vehicle owner for family and friends. The authentication devices can complete the transaction process of the vehicle's NFC module.

[0114] In one implementation, the mobile terminal's terminal ID (Identification) can be verified by the sensing device in the in-vehicle wireless charging device and / or the in-vehicle NFC module to determine whether the mobile terminal has an authenticated and recorded device, or whether the mobile terminal has a vehicle digital key. If so, the mobile terminal is an authenticated device; otherwise, the mobile terminal is an unauthenticated device. If the mobile terminal is an authenticated device, the signal strength of the in-vehicle NFC module is stopped from being suppressed, so that the authenticated device can complete the NFC transaction activated by the user while wireless charging is in progress.

[0115] The above methods improve the practicality and convenience of in-vehicle NFC modules and enhance the user experience.

[0116] Optionally, in response to the activation control of the vehicle NFC module, the vehicle NFC module is switched from a low-power state to an active state.

[0117] In one implementation, the vehicle-mounted NFC module is in a low-power state when not activated. In this low-power state, the vehicle-mounted NFC module does not send NFC signals or perform wake-up detection at a low frequency. This avoids accidental activation when an NFC-enabled mobile terminal is present within the signal range of the vehicle-mounted NFC module. The activation signal is used to characterize the signal generated by the user's NFC card activation operation, which includes starting the vehicle, verifying the card, and matching the card. For example, during the vehicle start-up phase, when the user presses the brake or the vehicle start button, the vehicle-mounted NFC module is activated and sends an NFC signal, requiring the user to perform NFC verification to complete the vehicle start-up.

[0118] After the vehicle-mounted NFC module is activated, it is determined whether there is a mobile terminal within the preset distance range of the vehicle-mounted NFC module, so as to avoid the impact of mobile terminals within the range accidentally popping up the NFC interface.

[0119] In one implementation, step S12 may include:

[0120] Suppress the signal strength of the vehicle-mounted NFC module in the active state.

[0121] In one implementation, the vehicle-mounted NFC module has multiple operating modes, each corresponding to a different field strength voltage, that is, each operating mode corresponds to a different near-field communication range.

[0122] For example, referring to the voltage timing (V / t) diagrams for different operating modes shown in Figures 3 and 4, the operating mode of the vehicle NFC module is switched to control the NFC module in the active state to emit NFC signals of different strengths. Specifically, if the vehicle NFC module receives an activation signal, it switches from a low-power state to a Poling state (i.e., the aforementioned active state). In the Poling state, the vehicle NFC module has a first operating mode as shown in Figure 3 and a second operating mode as shown in Figure 4. In the first operating mode, the field strength voltage corresponding to the vehicle NFC module is a first preset voltage, and in the second operating mode, the field strength voltage corresponding to the vehicle NFC module is a second preset voltage, wherein the first preset voltage is greater than the second preset voltage. In this way, when the vehicle is active, if no mobile terminal is detected within the preset distance range of the vehicle NFC module, the vehicle NFC module is controlled to operate in the first operating mode. If a mobile terminal is detected within the preset distance range of the vehicle NFC module, the vehicle NFC module is controlled to operate in the second operating mode. This achieves the suppression of the signal strength of the vehicle NFC module only when it is active, thereby eliminating the need to detect whether the mobile terminal is within the preset distance range of the vehicle NFC module when the vehicle NFC module is in a low-power state, thus reducing power consumption.

[0123] The above implementation method can avoid the mobile terminal from accidentally popping up the NFC interface while saving power consumption as much as possible, thus enhancing the user experience.

[0124] This disclosure also provides a control device for an in-vehicle NFC module, including:

[0125] A memory that stores computer programs.

[0126] A processor for executing the computer program in the memory to implement the method described in this disclosure.

[0127] In one embodiment, the control device for the vehicle-mounted NFC module can be the vehicle-mounted NFC module or a controller within the vehicle-mounted NFC module, or the control device for the vehicle-mounted NFC module can be an on-board wireless charger or a controller within the on-board wireless charger.

[0128] The vehicle-mounted NFC module includes an NFC antenna, MCU1 (Micro controller Unit-1, the first microcontroller), and a first CAN transceiver. The vehicle-mounted wireless charger includes a wireless charging coil, MCU2 (the second microcontroller), and a second CAN transceiver.

[0129] For example, the controller of the vehicle NFC module can be MCU1 in the vehicle NFC module. In step S12 above, when it is determined that the mobile terminal is within the preset distance range of the vehicle NFC module, MCU1 can control the NFC antenna to reduce the strength of the NFC signal it sends.

[0130] In another example, the controller of the vehicle NFC module can be MCU2 in the vehicle wireless charger. In step S12 above, when it is determined that the mobile terminal is within the preset distance range of the vehicle NFC module, MCU2 sends a suppression command to the vehicle NFC module through the second CAN transceiver. After receiving the suppression command through the first CAN transceiver, the vehicle NFC module controls the NFC antenna through MCU1 to reduce the strength of the NFC signal it transmits.

[0131] Referring to Figure 5, this disclosure also provides a control device 200 for an in-vehicle NFC module, the control device 200 for the in-vehicle NFC module including a determining module 201 and a suppressing module 202.

[0132] The determination module 201 is configured to determine that the mobile terminal is within a preset distance range of the vehicle-mounted NFC module.

[0133] The suppression module 202 is configured to suppress the signal strength of the vehicle-mounted NFC module in order to reduce the chance of the mobile terminal accidentally popping up the NFC interface.

[0134] Optionally, the determining module 201 is configured to:

[0135] Obtain detection information for the mobile terminal.

[0136] Based on the detection information, it is determined that the mobile terminal is within the preset distance range of the vehicle-mounted NFC module.

[0137] Optionally, an in-vehicle wireless charger is arranged within the preset distance range of the in-vehicle NFC module, or the in-vehicle NFC module and the in-vehicle wireless charger are integrated together.

[0138] The determining module 201 is configured as follows:

[0139] The detection information for the mobile terminal is obtained through the vehicle-mounted NFC module and / or the vehicle-mounted wireless charger.

[0140] Optionally, the detection information includes at least one of the following:

[0141] Charging status information, which is used to indicate the charging status of the vehicle-mounted wireless charger for the mobile terminal.

[0142] Weight detection information, which is used to indicate the weight detected by the vehicle NFC module or the vehicle wireless charger for the mobile terminal.

[0143] Pressure detection information, which is used to indicate the pressure detected by the mobile terminal by the vehicle NFC module or the vehicle wireless charger.

[0144] Location detection information, which is used to indicate the relative position of the vehicle-mounted NFC module or the vehicle-mounted wireless charger to the mobile terminal.

[0145] Optionally, the determining module 201 is configured to:

[0146] When the charging status information indicates that the vehicle wireless charger is in a charging state or a waiting-to-charge state, it is determined that the mobile terminal is within a preset distance range of the vehicle NFC module.

[0147] Optionally, the determining module 201 is configured to:

[0148] When the vehicle is powered off, the on-board wireless charger sends out detection signals according to a preset transmission cycle.

[0149] Upon receiving a return signal from the mobile terminal, it is determined that the vehicle-mounted wireless charger is in the charging-ready state.

[0150] Optionally, the determining module 201 is configured to:

[0151] When the vehicle is powered on and the onboard wireless charger has established a charging connection with the mobile terminal, the onboard wireless charger is determined to be in the charging state.

[0152] Optionally, the suppression module 202 is configured to:

[0153] The signal strength of the vehicle NFC module is suppressed by reducing the field strength voltage and / or signal transmission power of the vehicle NFC module.

[0154] Optionally, the determining module 201 is configured to:

[0155] In response to the activation control of the vehicle NFC module, the vehicle NFC module is switched from a low-power state to an active state.

[0156] This disclosure also provides a control device for an in-vehicle NFC module, including:

[0157] A memory that stores computer programs.

[0158] A processor for executing the computer program in the memory to implement the methods provided in this disclosure.

[0159] This disclosure also provides a vehicle, including an onboard wireless charger and an onboard NFC module.

[0160] The vehicle-mounted NFC module is used to acquire the detection information of the vehicle-mounted wireless charger for the mobile terminal, and when it is determined from the detection information that the mobile terminal is within a preset distance range of the vehicle-mounted NFC module, it suppresses the signal strength of the vehicle-mounted NFC module to reduce the possibility of the mobile terminal accidentally popping up the NFC interface.

[0161] Figure 6 is a block diagram illustrating a vehicle 600 according to an exemplary embodiment. For example, vehicle 600 may be a hybrid vehicle, a non-hybrid vehicle, an electric vehicle, a fuel cell vehicle, or other types of vehicle. Vehicle 600 may be an autonomous vehicle, a semi-autonomous vehicle, or a non-autonomous vehicle.

[0162] Referring to Figure 6, the vehicle 600 may include various subsystems, such as an infotainment system 610, a perception system 620, a decision control system 630, a drive system 640, and a computing platform 650. The vehicle 600 may also include more or fewer subsystems, and each subsystem may include multiple components. Furthermore, each subsystem and each component of the vehicle 600 can be interconnected via wired or wireless means.

[0163] In some embodiments, the infotainment system 610 may include a communication system, an entertainment system, and a navigation system, etc.

[0164] The perception system 620 may include several sensors for sensing information about the environment surrounding the vehicle 600. For example, the perception system 620 may include a global positioning system (which may be GPS, BeiDou, or other positioning systems), an inertial measurement unit (IMU), lidar, millimeter-wave radar, ultrasonic radar, and a camera device.

[0165] The decision control system 630 may include a computing system, a vehicle controller, a steering system, a throttle, and a braking system.

[0166] The drive system 640 may include components that provide powered motion to the vehicle 600. In one embodiment, the drive system 640 may include an engine, an energy source, a transmission system, and wheels. The engine may be one or a combination of internal combustion engines, electric motors, and compressed air engines. The engine is capable of converting energy provided by the energy source into mechanical energy.

[0167] Some or all of the functions of vehicle 600 are controlled by computing platform 650. Computing platform 650 may include at least one processor 651 and memory 652, processor 651 can execute instructions 653 stored in memory 652.

[0168] Processor 651 can be any conventional processor, such as a commercially available CPU. The processor may also include, for example, a Graphics Processing Unit (GPU), a Field Programmable Gate Array (FPGA), a System on Chip (SOC), an Application Specific Integrated Circuit (ASIC), or a combination thereof.

[0169] The memory 652 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0170] In addition to instruction 653, memory 652 can also store data, such as road maps, route information, vehicle position, direction, speed, and other data. The data stored in memory 652 can be used by computing platform 650.

[0171] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0172] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0173] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A control method of a vehicle-mounted NFC module, wherein, The method comprises: determining that the mobile terminal is within a preset distance range of the vehicle-mounted NFC module; suppressing the signal strength of the vehicle-mounted NFC module to reduce the case that the mobile terminal mistakenly pops up the NFC interface.

2. The method of claim 1, wherein, The determination that the mobile terminal is within the preset distance range of the vehicle-mounted NFC module comprises: obtaining detection information for the mobile terminal; determining that the mobile terminal is within the preset distance range of the vehicle-mounted NFC module according to the detection information.

3. The method of claim 2, wherein, The preset distance range of the vehicle-mounted NFC module is arranged with a vehicle-mounted wireless charger, or the vehicle-mounted NFC module and the vehicle-mounted wireless charger are integrated together, and the obtaining of the detection information for the mobile terminal comprises: obtaining the detection information for the mobile terminal through the vehicle-mounted NFC module and / or the vehicle-mounted wireless charger.

4. The method of claim 3, wherein, The detection information comprises at least one of: charging state information for indicating the charging state of the vehicle-mounted wireless charger for the mobile terminal; weight detection information for indicating the weight detected by the vehicle-mounted NFC module or the vehicle-mounted wireless charger for the mobile terminal; pressure detection information for indicating the pressure detected by the vehicle-mounted NFC module or the vehicle-mounted wireless charger for the mobile terminal; position detection information for indicating the relative position of the vehicle-mounted NFC module or the vehicle-mounted wireless charger for the mobile terminal.

5. The method of claim 4, wherein, The determination that the mobile terminal is within the preset distance range of the vehicle-mounted NFC module according to the detection information comprises: in a case that the charging state information represents that the vehicle-mounted wireless charger is in a charging state or a standby charging state, determining that the mobile terminal is within the preset distance range of the vehicle-mounted NFC module.

6. The method of claim 5, wherein, The method further comprises: in a case that the vehicle is in a powered-off state, sending a detection signal outward at a preset sending period through the vehicle-mounted wireless charger; in a case that a return signal sent by the mobile terminal is received, determining that the vehicle-mounted wireless charger is in the standby charging state.

7. The method of claim 5, wherein, The method further comprises: in a case that the vehicle is in a powered-on state and the vehicle-mounted wireless charger establishes a charging connection with the mobile terminal, determining that the vehicle-mounted wireless charger is in the charging state.

8. The method of any one of claims 1-7, wherein, The suppression of the signal strength of the vehicle-mounted NFC module comprises: suppressing the signal strength of the vehicle-mounted NFC module by reducing the field strength voltage and / or signal transmission power of the vehicle-mounted NFC module.

9. The method of any one of claims 1-8, wherein, Before the determination that the mobile terminal is within the preset distance range of the vehicle-mounted NFC module, the method comprises: in response to the on-field control of the vehicle-mounted NFC module, adjusting the vehicle-mounted NFC module from a low-power consumption state to an active state.

10. A control device of a vehicle-mounted NFC module, wherein, The device comprises: a memory having a computer program stored thereon; a processor configured to execute the computer program in the memory to implement the method in any one of claims 1-9.

11. A vehicle, wherein, The device comprises a vehicle-mounted wireless charger and a vehicle-mounted NFC module. The vehicle-mounted NFC module is used to acquire detection information of the vehicle-mounted wireless charger for a mobile terminal, and in the case that it is determined according to the detection information that the mobile terminal is within a preset distance range of the vehicle-mounted NFC module, the signal strength of the vehicle-mounted NFC module is inhibited to reduce the case that the mobile terminal mistakenly pops up an NFC interface.

Images