Digital key calibration method and device, medium and equipment

Abstract

The invention provides a digital key calibration method and device, a medium and equipment, and the method comprises the steps: interacting a positioning signal with auxiliary equipment at a first frequency, and obtaining the position information of a digital key carrier having a physical binding relationship with the auxiliary equipment; in the process of obtaining the position information of the digital key carrier, collecting signal intensity information of the digital key carrier at a second frequency; and generating calibration parameters of the digital key based on the position information and the signal intensity information of the digital key carrier so as to calibrate the digital key according to the calibration parameters. The method is simple and efficient to implement.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a digital key calibration method, device, medium and equipment. Background Art

[0002] With the rapid development of the automobile industry, consumers pay more and more attention to the convenience of car keys. Car keys have experienced a development process from physical keys to digital keys, and digital car keys have ushered in strong growth. Digital keys can use different communication technologies such as Bluetooth, UWB, NFC and more secure key management, and use smart terminal devices such as smart phones and smart watches as car keys, thereby realizing keyless entry and starting, remote key authorization for others, personalized vehicle settings and other comfortable and convenient car experience.

[0003] Bluetooth key is a digital key that uses Bluetooth for communication and positioning. It is widely used in the market. The carrier of Bluetooth key is mainly mobile phone. However, in the process of Bluetooth positioning, on the one hand, due to the large number of smart phone brands, there are differences in radio frequency performance between mobile phones; on the other hand, for different models, the installation position of the Bluetooth module on the vehicle side may be different, and the sheet metal environment inside the car may also be different. Therefore, it is necessary to perform real-car calibration for different users' mobile phones to ensure the compatibility of different mobile phones on different models. At present, car manufacturers select multiple mobile phones for real-car calibration, and then store the calibration data in the cloud or on the vehicle side to ensure the stability and reliability of the sensorless control car function. However, the cycle of calibrating a mobile phone is long and the efficiency is low. There is no way to cover all mobile phones on the market. Mobile phones that have not been calibrated on the market will not be able to use Bluetooth car control normally and have abnormal functions, which seriously affects the user experience of digital keys. Summary of the invention

[0004] In view of this, the present application provides a digital key calibration method, device, medium and electronic device, the main purpose of which is to provide a simple and efficient digital key binding solution.

[0005] According to one aspect of the present application, a digital key calibration method is provided for a vehicle, the method comprising:

[0006] Interacting positioning signals with the auxiliary device at a first frequency to obtain location information of a digital key carrier that is physically bound to the auxiliary device;

[0007] In the process of obtaining the position information of the digital key carrier, collecting the signal strength information of the digital key carrier at a second frequency;

[0008] Based on the location information and signal strength information of the digital key carrier, calibration parameters of the digital key are generated to calibrate the digital key according to the calibration parameters.

[0009] In one implementation, before exchanging positioning signals with the auxiliary device at the first frequency, the method further includes:

[0010] The vehicle is set to a calibration mode, so that when the digital key carrier is also in the calibration mode, a communication connection is established with the digital key carrier, wherein the auxiliary device and the digital key carrier are physically bound in advance, and the auxiliary device and the digital key carrier are located within a specified position range of the vehicle or move within a specified position range.

[0011] In one implementation, the method further includes:

[0012] The calibration parameters are sent to the cloud or the digital key carrier, so that the calibration parameters and the model information of the digital key carrier are stored in the cloud, or the digital key carrier stores the calibration parameters.

[0013] According to one aspect of the present application, a digital key calibration method is provided for a digital key carrier, the method comprising:

[0014] In response to a request from the vehicle, during the process of the vehicle obtaining the location information of the digital key carrier, signal strength information is sent to the vehicle at a second frequency, so that the vehicle generates calibration parameters of the digital key based on the location information and signal strength information of the digital key carrier.

[0015] The vehicle exchanges a positioning signal with an auxiliary device physically bound to the digital key carrier at a first frequency, and the positioning signal is used by the vehicle to obtain the location information of the digital key carrier.

[0016] In one implementation, before responding to the request of the vehicle, the method further includes:

[0017] The digital key carrier is set to be in a calibration mode, and a communication connection is established with the vehicle which is also in the calibration mode, and a physical binding relationship between the digital key carrier and the auxiliary device carrier is established.

[0018] In one implementation, after establishing the physical binding relationship between the digital key carrier and the auxiliary device carrier, the method further includes:

[0019] When the digital key carrier is in the calibration mode, guide information is output to guide the auxiliary device and the digital key carrier to be located within a specified position range of the vehicle or to move within a specified position range according to the guide information.

[0020] According to one aspect of the present application, a digital key calibration device is provided for a vehicle, the device comprising:

[0021] A positioning unit, configured to exchange positioning signals with the auxiliary device at a first frequency to obtain position information of a digital key carrier physically bound to the auxiliary device;

[0022] A signal acquisition unit, configured to acquire signal strength information of the digital key carrier at a second frequency during the process of acquiring the position information of the digital key carrier;

[0023] The calibration unit is used to generate calibration parameters of the digital key based on the position information and signal strength information of the digital key carrier, so as to calibrate the digital key according to the calibration parameters.

[0024] According to one aspect of the present application, a digital key calibration device is provided for a digital key carrier, the device comprising:

[0025] a signal sending unit, configured to send signal strength information to the vehicle at a second frequency in response to a request from the vehicle, during a process in which the vehicle obtains the position information of the digital key carrier, so that the vehicle generates a calibration parameter of the digital key based on the position information and the signal strength information of the digital key carrier,

[0026] The vehicle exchanges a positioning signal with an auxiliary device physically bound to the digital key carrier at a first frequency, and the positioning signal is used by the vehicle to obtain the location information of the digital key carrier.

[0027] According to one aspect of the present application, a storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the above-mentioned digital key calibration method when running.

[0028] According to one aspect of the present application, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the above-mentioned digital key calibration method.

[0029] Through the above technical scheme, the present application provides a digital key calibration method, device, medium and equipment, which establishes a physical binding relationship between a digital key carrier (such as a mobile phone, smart watch, smart bracelet, PAD and other mobile devices with Bluetooth function) and an auxiliary device with a positioning function (such as a physical key) by placing them together or placing them at a close distance. Thus, the purpose of measuring the distance of the digital key carrier is achieved through the positioning signal between the vehicle and the auxiliary device. During the ranging process, the vehicle receives the signal strength information of the digital key carrier, and finally calibrates the digital key according to the location information and signal strength information of the digital key carrier.

[0030] The present application scheme solves the problems of insufficient calibration data and calibration error caused by the inability of the mobile phone to be in the expected position in the existing method, and can enable users to achieve good self-calibration effects with less operation, which is simple and efficient.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0033] Figure 1 A schematic diagram of an implementation scenario of a digital key calibration method provided in an embodiment of the present application is shown;

[0034] Figure 2 A flow chart of a digital key calibration method applied to a vehicle provided in an embodiment of the present application is shown;

[0035] Figure 3 A flow chart of a digital key calibration method applied to a digital key carrier provided in an embodiment of the present application is shown;

[0036] Figure 4 A schematic diagram of the structure of a digital key calibration device applied to a vehicle provided in an embodiment of the present application is shown;

[0037] Figure 5 A schematic diagram of the structure of a digital key calibration device applied to a digital key carrier provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other in the absence of conflict. In order to solve the problem of using

[0039] The conventional method is to use the mobile phone app to guide users to calibrate themselves by placing the mobile phone in a certain area or position to collect mobile phone signals (such as 2m, 4m outside the car, and other specific positions inside and outside the car) to achieve the calibration effect. However, the problem with this method is that, considering the user experience, the collection position is limited, so the amount of calibration data is small and cannot achieve good results. Another problem is that users cannot accurately place the mobile phone in the expected position, and the position of the mobile phone will deviate from the preset position, resulting in insufficient accuracy of the collected data.

[0040] Another approach is to actively collect data when the phone is in a recognizable position (such as the NFC card swiping area outside the car or the wireless charging area inside the car). The disadvantage of this approach is that the number of locations is small, the amount of calibration data is insufficient, and good results cannot be achieved. In addition, there is a high degree of uncertainty about when the phone is in the preset position, and the timeliness is poor.

[0041] Therefore, in order to solve the calibration error problems caused by insufficient calibration data and the inability of the mobile phone to be in the expected position during the user's self-calibration process, the embodiments of the present application can enable the user to achieve good self-calibration effects with less operations.

[0042] In an embodiment of the present application, a digital key carrier (such as a mobile device with a Bluetooth function, such as a mobile phone, a smart watch, a smart bracelet, a PAD, etc.) and an auxiliary device with a positioning function (such as a physical key) are placed together or placed at a close distance to establish a physical binding relationship between the two. Thus, the positioning signal between the vehicle and the auxiliary device is used to achieve the purpose of measuring the distance of the digital key carrier. During the ranging process, the vehicle receives the signal strength (Received Signal Strength Indication, RSSI) information of the digital key carrier, and finally calibrates the digital key according to the location information and RSSI information of the digital key carrier.

[0043] See also Figure 1 , showing a schematic diagram of an implementation scenario of a digital key calibration method provided in an embodiment of the present application.

[0044] In this scenario, a vehicle 10, a mobile phone (an example of a digital key carrier) 20, and a physical key (an example of an auxiliary device) 30 are shown, wherein the mobile phone 20 and the physical key 30 have a physical binding relationship, that is, the mobile phone 20 and the physical key 30 are placed together, or the distance between the mobile phone 20 and the physical key 30 does not exceed a threshold, for example, a distance of no more than 10 cm, so as to ensure that the positioning of the physical key 30 by the vehicle 10 is equivalent to the positioning of the mobile phone 20, so as to determine the position of the mobile phone 20 relative to the vehicle. In actual operation, the positioning between the vehicle 10 and the physical key 30 can be achieved based on technologies such as ultra-wideband (UWB) and high-precision ranging (HAMD). Since the physical key 30 and the mobile phone 20 are very close to each other or placed together, it is equivalent to positioning the mobile phone 20. The mobile phone 20 and the physical key 30 are within a certain range of the vehicle (for example Figure 1 When the physical key 30 moves within the semicircle area shown by the middle dotted line, for example, when approaching the vehicle from far to near, the vehicle 10 continuously sends UWB signals to the physical key 30, so as to locate the mobile phone that is together with the physical key (or very close to it). During this process, the vehicle 10 also measures the signal strength information of the mobile phone 20, that is, collects RSSI information in real time.

[0045] In one case, if the mobile phone 20 also has a UWB or HAMD module, the vehicle 10 can be used to directly locate the mobile phone 20. In this case, the mobile phone 20 itself acts as an auxiliary device (or it is understood that no auxiliary device is needed).

[0046] See also Figure 2 A flow chart of a digital key calibration method for a vehicle provided in an embodiment of the present application is shown, including the following steps S201-S203.

[0047] S201: Interacting positioning signals with the auxiliary device at a first frequency to obtain location information of a digital key carrier that is physically bound to the auxiliary device.

[0048] As described above, an auxiliary device is a device with a positioning function, such as a device with a UWB or HAMD module, including but not limited to a physical key, a mobile phone, etc. A digital key carrier refers to a mobile device with a Bluetooth function, such as a mobile phone, a smart watch, a smart bracelet, a PAD, etc., which provides a digital key function. In actual situations, the relationship between the auxiliary device and the vehicle end is generally that the auxiliary device and the vehicle end interact with each other, and the vehicle end calculates the position of the auxiliary device based on the signal.

[0049] A physical binding relationship is predetermined between the auxiliary device and the digital key carrier, that is, the auxiliary device and the digital key carrier are placed together, or the distance between the two is less than a threshold, for example, less than 10 cm, so as to ensure that the vehicle's positioning of the auxiliary device is equivalent to the positioning of the digital key carrier.

[0050] Therefore, in one implementation, before exchanging positioning signals with the auxiliary device at the first frequency, it also includes: setting the vehicle to a calibration mode, thereby establishing a communication connection with the digital key carrier when the digital key carrier is in the calibration mode at the same time, wherein the auxiliary device and the digital key carrier are physically bound in advance, and the auxiliary device and the digital key carrier are located within the specified position range of the vehicle or move within the specified position range. It can be understood that the specified position range of the vehicle can be a certain range (for example, a maximum of no more than 5 meters from the vehicle) that moves according to a certain rule (for example, from far to near the vehicle or from inside the vehicle to outside the vehicle).

[0051] In one implementation, sending a positioning signal with a physical key at a first frequency includes: interacting with an auxiliary device at the first frequency with a positioning signal based on UWB or HAMD, thereby measuring the distance of a digital key carrier according to UWB.

[0052] S202: In the process of obtaining the position information of the digital key carrier, signal strength information of the digital key carrier is collected at a second frequency.

[0053] In practice, when the digital key carrier and the auxiliary device are moving within the specified position range, for example, when the mobile phone and the physical key are approaching the vehicle from far to near, the vehicle continuously sends UWB signals to the physical key, thereby locating the mobile phone that is together with the physical key (or very close to it). During this process, the vehicle will also measure the signal strength information of the mobile phone, that is, collect RSSI information in real time. In order to collect enough RSSI information during positioning, in a preferred method, the second frequency for collecting RSSI information can be set to be at least equal to the first frequency, or the second frequency can be set to be greater than the first frequency. However, in other methods, the second frequency can also be set to be less than the first frequency, and there is no specific limitation on this.

[0054] S203: Generate calibration parameters of the digital key based on the location information and signal strength information of the digital key carrier, so as to calibrate the digital key according to the calibration parameters.

[0055] In one implementation, the vehicle also sends the calibration parameters to the cloud or a digital key carrier to store the calibration parameters and the model information of the digital key carrier in the cloud, or stores the calibration parameters in the digital key carrier to ensure that the sensorless control vehicle function is stable and reliable.

[0056] See also Figure 3 , shows a flow chart of a digital key calibration method applied to a digital key carrier provided in an embodiment of the present application;

[0057] S301: Setting the digital key carrier to a calibration mode, establishing a communication connection with a vehicle that is also in the calibration mode, and establishing a physical binding relationship between the digital key carrier and the auxiliary device carrier.

[0058] Among them, the physical key and the digital key carrier are placed together or at a distance not exceeding a maximum threshold so as to physically bind the digital key carrier to the physical key.

[0059] S302: When the digital key carrier is in the calibration mode, output guidance information to guide the auxiliary device and the digital key carrier to be located within a specified position range of the vehicle or to move within the specified position range according to the guidance information.

[0060] S303: In response to a request from the vehicle, in the process of the vehicle obtaining the location information of the digital key carrier, sending signal strength information to the vehicle at a second frequency, so that the vehicle generates calibration parameters of the digital key based on the location information and the signal strength information of the digital key carrier;

[0061] The vehicle exchanges positioning signals with an auxiliary device physically bound to the digital key carrier at a first frequency, and the positioning signals are used by the vehicle to obtain location information of the digital key carrier.

[0062] The following is a specific example to illustrate the implementation process of the digital key calibration method provided in the embodiment of the present application.

[0063] In this example, the calibration of the Bluetooth digital key is mainly achieved through the physical key and vehicle with UWB function, in conjunction with mobile phone operation.

[0064] The devices involved in this example are mainly: Bluetooth digital key carriers such as mobile phones, vehicle calibration modules and storage devices, physical keys with UWB function, and vehicle-side UWB ranging / positioning modules.

[0065] in:

[0066] The Bluetooth digital key carrier is the mobile terminal carried by the user when using the Bluetooth digital key function, including mobile phones, smart watches, smart bracelets, PADs and other mobile devices with Bluetooth function.

[0067] The vehicle calibration module and storage device are mainly used to support and implement the calibration of the digital key carrier, the interaction between the user and the digital key carrier, and record the calibration data.

[0068] A physical key with UWB function is a physical key with UWB radio frequency capability or function, and is usually provided to users in the form of an accessory.

[0069] The vehicle-side UWB ranging / positioning module is a module that contains UWB radio frequency function and certain processing capabilities. It can measure the distance or position the UWB physical key through UWB precise ranging or positioning.

[0070] The main implementation method is: the user carries a mobile phone and a physical key at the same time, and places the mobile phone and the physical key within a certain distance (such as putting them together, or not exceeding a certain distance). The user opens the mobile phone calibration program and walks around the vehicle according to the guidance. At this time, the vehicle will use UWB ranging or positioning to obtain the distance or position of the physical key from the car, thereby indirectly obtaining the position relationship between the mobile phone and the car. At the same time, the vehicle calibration module will record the RSSI value of the mobile phone, compare the RSSI value with the position relationship of the mobile phone, generate corresponding calibration parameters and save them.

[0071] The specific steps are:

[0072] 1. The user opens the phone and enters the calibration function through the APP, and the vehicle is also configured to support calibration.

[0073] 2. The user holds the mobile phone and the physical key, and places the physical key within a certain range of the mobile phone. To reduce errors, the physical key and the mobile phone can be placed together or kept within a certain distance (for example, 10 cm);

[0074] 3. The calibration function guides the user to move inside and outside the vehicle, usually by moving around the vehicle, getting on the vehicle from far to near, or getting off the vehicle from the cockpit area and leaving the vehicle a certain distance;

[0075] 4. When the user moves in and out of the car, the UWB ranging / positioning module on the vehicle measures the distance or positions the physical key at a certain frequency, and indirectly obtains the position relationship between the mobile phone and the vehicle;

[0076] 5. When the user moves in and out of the car, the vehicle calibration module and storage device will collect the RSSI value of the mobile phone Bluetooth. The collection frequency is consistent with or higher than the ranging / positioning frequency in 4 above. The RSSI value and location information will be integrated and recorded;

[0077] 6. After movement and data collection are completed, calibration parameters are generated based on the data information recorded in 5 and stored on the vehicle side. The mobile phone side and the cloud side can also be stored according to the situation. The stored content includes but is not limited to the mobile phone model, calibration parameters, etc.

[0078] In addition, in the implementation method, the technology used to realize the location perception of the mobile phone can be UWB technology or other perception technologies including HAMD. The auxiliary equipment used is not limited to physical keys. If the mobile phone itself has functions such as UWB, the mobile phone itself can also be used.

[0079] It can be seen that by obtaining the location information of the UWB physical key through the vehicle-side UWB module, and placing the mobile phone together with this device with positioning capability, the accurate location information of the mobile phone can be obtained indirectly; by collecting the mobile phone RSSI information at a certain frequency through the user's movement in and out of the car, a continuous and large number of original data based on different locations can be obtained; the vehicle-side automatically associates the collected mobile phone RSSI information with the location, without limiting the user to a fixed area, and the user does not need to find the location of the mobile phone by himself; the movement rules include stationary, or movement that meets certain preset rules.

[0080] Therefore, on the first aspect, this example uses the perception of the UWB physical key and effectively obtains the exact position of the mobile phone by placing and moving the mobile phone and the UWB physical key in parallel, eliminating the error caused by the user's own search for the calibration position, making the calibration result more accurate; on the second aspect, data can be continuously obtained through the movement of the user in and out of the car, and the amount of data collected at each position is large, which is conducive to the generation of calibration parameters and improves the calibration accuracy; on the third aspect, the requirements for users during the calibration process are relatively low, which improves operability and user experience; the fourth aspect is the UWB physical key and the vehicle-side UWB module. The number of UWB physical keys and vehicle-side UWB modules installed in vehicles is increasing, and existing equipment can be used to reduce costs.

[0081] In summary, the problem of insufficient calibration data and calibration error caused by the inability of the mobile phone to be in the expected position in the existing method is solved, which can enable users to achieve good self-calibration effects with less operation, and the implementation is simple and efficient.

[0082] Figure 4 The structure diagram of the digital key calibration device applied to a vehicle provided in an embodiment of the present application is shown, and the device includes:

[0083] The positioning unit 401 is used to exchange positioning signals with the auxiliary device at a first frequency to obtain the position information of the digital key carrier physically bound to the auxiliary device;

[0084] A signal acquisition unit 402, configured to acquire signal strength information of the digital key carrier at a second frequency during the process of obtaining the position information of the digital key carrier;

[0085] The calibration unit 403 is used to generate calibration parameters of the digital key based on the location information and signal strength information of the digital key carrier, so as to calibrate the digital key according to the calibration parameters.

[0086] In one implementation, the vehicle is set to a calibration mode, so that when the digital key carrier is in the calibration mode at the same time, a communication connection is established with the digital key carrier, wherein the auxiliary device and the digital key carrier are physically bound in advance, and the auxiliary device and the digital key carrier are located within a specified position range of the vehicle or move within a specified position range.

[0087] The calibration unit 403 is further used to: send the calibration parameters to the cloud or the digital key carrier, so as to store the calibration parameters and the model information of the digital key carrier in the cloud, or the digital key carrier stores the calibration parameters.

[0088] See also Figure 5 , shows a schematic diagram of the structure of a digital key calibration device applied to a digital key carrier provided in an embodiment of the present application, the device comprising:

[0089] The calibration mode unit 501 is used to set the digital key carrier to be in the calibration mode, establish a communication connection with the vehicle which is also in the calibration mode, and establish a physical binding relationship between the digital key carrier and the auxiliary device carrier; and, when the digital key carrier is in the calibration mode, output guidance information to guide the auxiliary device and the digital key carrier to be located within a specified position range of the vehicle or to move within the specified position range according to the guidance information;

[0090] wherein the physical key and the digital key carrier are placed together or at a distance not exceeding a maximum threshold, so as to physically bind the digital key carrier to the physical key;

[0091] The signal strength information sending unit 502 is used to send signal strength information to the vehicle at a second frequency in response to a request from the vehicle, when the vehicle obtains the position information of the digital key carrier, so that the vehicle generates a calibration parameter of the digital key based on the position information and the signal strength information of the digital key carrier;

[0092] The vehicle exchanges positioning signals with an auxiliary device physically bound to the digital key carrier at a first frequency, and the positioning signals are used by the vehicle to obtain location information of the digital key carrier.

[0093] An embodiment of the present application further provides a storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0094] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0095] Interacting positioning signals with the auxiliary device at a first frequency to obtain location information of a digital key carrier that is physically bound to the auxiliary device;

[0096] In the process of obtaining the position information of the digital key carrier, collecting the signal strength information of the digital key carrier at a second frequency;

[0097] Based on the location information and signal strength information of the digital key carrier, generating calibration parameters of the digital key, so as to calibrate the digital key according to the calibration parameters;

[0098] or,

[0099] In response to a request from the vehicle, during the process of the vehicle obtaining the location information of the digital key carrier, signal strength information is sent to the vehicle at a second frequency, so that the vehicle generates calibration parameters of the digital key based on the location information and signal strength information of the digital key carrier.

[0100] The vehicle exchanges a positioning signal with an auxiliary device physically bound to the digital key carrier at a first frequency, and the positioning signal is used by the vehicle to obtain the location information of the digital key carrier.

[0101] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0102] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0103] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0104] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0105] Interacting positioning signals with the auxiliary device at a first frequency to obtain location information of a digital key carrier that is physically bound to the auxiliary device;

[0106] In the process of obtaining the position information of the digital key carrier, collecting the signal strength information of the digital key carrier at a second frequency;

[0107] Based on the location information and signal strength information of the digital key carrier, generating calibration parameters of the digital key, so as to calibrate the digital key according to the calibration parameters;

[0108] or,

[0109] In response to a request from the vehicle, during the process of the vehicle obtaining the location information of the digital key carrier, signal strength information is sent to the vehicle at a second frequency, so that the vehicle generates calibration parameters of the digital key based on the location information and signal strength information of the digital key carrier.

[0110] The vehicle exchanges a positioning signal with an auxiliary device physically bound to the digital key carrier at a first frequency, and the positioning signal is used by the vehicle to obtain the location information of the digital key carrier.

[0111] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0112] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0113] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0114] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0115] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0116] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0117] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0118] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A digital key calibration method, It is characterized in that For a vehicle, the method comprises: Interacting positioning signals with the auxiliary device at a first frequency to obtain location information of a digital key carrier that is physically bound to the auxiliary device; In the process of obtaining the position information of the digital key carrier, collecting the signal strength information of the digital key carrier at a second frequency; Based on the location information and signal strength information of the digital key carrier, calibration parameters of the digital key are generated to calibrate the digital key according to the calibration parameters.

2. The method according to claim 1, It is characterized in that Before exchanging positioning signals with the auxiliary device at the first frequency, the method further includes: The vehicle is set to a calibration mode, so that when the digital key carrier is also in the calibration mode, a communication connection is established with the digital key carrier, wherein the auxiliary device and the digital key carrier are physically bound in advance, and the auxiliary device and the digital key carrier are located within a specified position range of the vehicle or move within a specified position range.

3. The method according to claim 1 or 2, It is characterized in that Also includes: The calibration parameters are sent to the cloud or the digital key carrier, so that the calibration parameters and the model information of the digital key carrier are stored in the cloud, or the digital key carrier stores the calibration parameters.

4. A digital key calibration method, It is characterized in that For a digital key carrier, the method comprises: In response to a request from the vehicle, during the process of the vehicle obtaining the location information of the digital key carrier, signal strength information is sent to the vehicle at a second frequency, so that the vehicle generates calibration parameters of the digital key based on the location information and signal strength information of the digital key carrier. The vehicle exchanges positioning signals with an auxiliary device physically bound to the digital key carrier at a first frequency, and the positioning signals are used by the vehicle to obtain location information of the digital key carrier.

5. The method according to claim 4, It is characterized in that Before responding to the request of the vehicle, the method further includes: The digital key carrier is set to be in a calibration mode, and a communication connection is established with the vehicle which is also in the calibration mode, and a physical binding relationship between the digital key carrier and the auxiliary device carrier is established.

6. The method according to claim 5, It is characterized in that After establishing the physical binding relationship between the digital key carrier and the auxiliary device carrier, the method further includes: When the digital key carrier is in the calibration mode, guide information is output to guide the auxiliary device and the digital key carrier to be located within a specified position range of the vehicle or to move within a specified position range according to the guide information.

7. A digital key calibration device, It is characterized in that For a vehicle, the device comprises: A positioning unit, configured to exchange positioning signals with the auxiliary device at a first frequency to obtain position information of a digital key carrier physically bound to the auxiliary device; A signal acquisition unit, configured to acquire signal strength information of the digital key carrier at a second frequency during the process of acquiring the position information of the digital key carrier; The calibration unit is used to generate calibration parameters of the digital key based on the position information and signal strength information of the digital key carrier, so as to calibrate the digital key according to the calibration parameters.

8. A digital key calibration device, It is characterized in that For a digital key carrier, the device comprises: a signal sending unit, configured to send signal strength information to the vehicle at a second frequency in response to a request from the vehicle, during a process in which the vehicle obtains the position information of the digital key carrier, so that the vehicle generates a calibration parameter of the digital key based on the position information and the signal strength information of the digital key carrier, The vehicle exchanges a positioning signal with an auxiliary device physically bound to the digital key carrier at a first frequency, and the positioning signal is used by the vehicle to obtain the location information of the digital key carrier.

9. A storage medium, It is characterized in that The storage medium stores a computer program, wherein the computer program is configured to execute the method according to any one of claims 1 to 6 when executed.

10. An electronic device comprising a memory and a processor, It is characterized in that A computer program is stored in the memory, and the processor is configured to run the computer program to perform the method according to any one of claims 1 to 6.

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