Vehicle-mounted hotspot frequency band switching method and device, medium and electronic equipment

Abstract

The invention discloses a frequency band switching method and device for a vehicle-mounted hot spot, a medium and electronic equipment. The method comprises the following steps: acquiring first signal intensity, first interference intensity and first network quality of the vehicle-mounted hot spot in a current connection frequency band; jointly judging whether the first signal strength, the first interference strength and the first network quality meet a first parameter condition or not; if yes, obtaining a target connection frequency band; and switching the vehicle-mounted hotspot from the current connection frequency band to the target connection frequency band. According to the invention, the frequency band switching speed can be improved.

Description

Background Art

[0002] A car hotspot is a wireless network device used in vehicles, also known as a car WIFI hotspot. On the one hand, it usually works in a fixed frequency band. When encountering interference in the same frequency band, it is easy to cause signal instability or even disconnection. On the other hand, when connecting to car peripherals with high network quality requirements, it is also easy to disconnect in some environments.

[0003] At present, in order to solve the problem of disconnection of the in-vehicle hotspot, the frequency band is usually switched manually, which has the disadvantages of slow switching speed and poor real-time performance. Summary of the invention

[0004] The embodiments of the present application provide a method, device, medium, and electronic device for switching the frequency band of a vehicle-mounted hotspot, which are used to solve the technical problem of slow switching speed when manually switching the frequency band of the vehicle-mounted hotspot.

[0005] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0006] According to a first aspect of the present application, a frequency band switching method for a vehicle-mounted hotspot is provided, comprising:

[0007] Obtaining a first signal strength, a first interference strength, and a first network quality of the vehicle hotspot in the current connection frequency band;

[0008] jointly determining whether the first signal strength, the first interference strength, and the first network quality meet a first parameter condition;

[0009] If yes, obtain the target connection frequency band;

[0010] The vehicle hotspot is switched from the current connection frequency band to the target connection frequency band.

[0011] In some embodiments, based on the foregoing solution, the jointly determining whether the first signal strength, the first interference strength, and the first network quality meet the first parameter condition includes:

[0012] scoring the first signal strength, the first interference strength, and the first network quality;

[0013] Performing a weighted summation on the scoring results of the first signal strength, the first interference strength, and the first network quality to obtain a first target score;

[0014] It is determined whether the first signal strength, the first interference strength, and the first network quality meet a first parameter condition according to the first target score.

[0015] In some embodiments, based on the foregoing solution, after obtaining the first signal strength, the first interference strength and the first network quality of the vehicle-mounted hotspot in the current connection frequency band, the following further includes:

[0016] When any one of the first signal strength, the first interference strength and the first network quality meets the corresponding second parameter condition, the step of acquiring the target connection frequency band is performed.

[0017] In some embodiments, based on the foregoing solution, the present invention further includes:

[0018] Obtaining a historical signal strength of the vehicle-mounted hotspot in a currently connected frequency band, and determining a signal strength change rate according to the historical signal strength and the first signal strength;

[0019] If the first signal strength is less than the preset signal strength or the signal strength change rate is less than the preset strength change rate, it indicates that the first signal strength meets the corresponding second parameter condition and the preset signal strength change rate is a negative value.

[0020] In some embodiments, based on the above solution, obtaining the target connection frequency band includes:

[0021] Obtaining second signal strengths, second interference strengths, and second network qualities of multiple first candidate frequency bands;

[0022] The target connection frequency band is acquired from the multiple first candidate frequency bands according to the second signal strength, the second interference strength and the second network quality.

[0023] In some embodiments, based on the foregoing solution, acquiring the target connection frequency band from the multiple first candidate frequency bands according to the second signal strength, the second interference strength, and the second network quality includes:

[0024] For each first candidate frequency band in the multiple first candidate frequency bands, score the second signal strength, the second interference strength, and the second network quality of the first candidate frequency band, and perform weighted summation on the scoring results of the second signal strength, the second interference strength, and the second network quality of the first candidate frequency band to obtain a second target score for the first candidate frequency band;

[0025] The target connection frequency band is acquired from the multiple first candidate frequency bands according to the second target score of each of the first candidate frequency bands.

[0026] In some embodiments, based on the above solution, obtaining the target connection frequency band includes:

[0027] Acquire historical connection data of a plurality of second candidate frequency bands, wherein the historical connection data represents the stability of the vehicle-mounted hotspot being connected to the second candidate frequency band within a historical period;

[0028] The target connection frequency band is acquired from the plurality of second candidate frequency bands according to the historical connection data.

[0029] According to a second aspect of the present application, a frequency band switching device for a vehicle-mounted hotspot is provided, the device comprising:

[0030] A first acquisition unit, which acquires a first signal strength, a first interference strength, and a first network quality of the vehicle-mounted hotspot in a current connection frequency band;

[0031] A first judging unit, jointly judging whether the first signal strength, the first interference strength and the first network quality meet a first parameter condition;

[0032] The second acquisition unit, if yes, acquires the target connection frequency band;

[0033] The first switching unit switches the vehicle-mounted hotspot from the current connection frequency band to the target connection frequency band.

[0034] In some embodiments, based on the foregoing solution, the first determination unit is configured as follows:

[0035] A first scoring unit, scoring the first signal strength, the first interference strength and the first network quality;

[0036] a first summing unit, performing weighted summation on the scoring results of the first signal strength, the first interference strength, and the first network quality to obtain a first target score;

[0037] The second judgment unit judges whether the first signal strength, the first interference strength, and the first network quality meet a first parameter condition according to the first target score.

[0038] In some embodiments, based on the foregoing solution, a first execution unit is further included. After acquiring the first signal strength, the first interference strength and the first network quality of the vehicle-mounted hotspot in the current connection frequency band, the first execution unit is configured to:

[0039] The second execution unit executes the step of acquiring the target connection frequency band when any one of the first signal strength, the first interference strength and the first network quality meets the corresponding second parameter condition.

[0040] In some embodiments, based on the foregoing solution, the present invention further includes:

[0041] A third acquisition unit, acquiring a historical signal strength of the vehicle-mounted hotspot in a current connection frequency band, and determining a signal strength change rate according to the historical signal strength and the first signal strength;

[0042] The first compliance unit is configured to indicate that if the first signal strength is less than a preset signal strength or the signal strength change rate is less than a preset strength change rate, it indicates that the first signal strength meets the corresponding second parameter condition, and the preset signal strength change rate is a negative value.

[0043] In some embodiments, based on the foregoing solution, the second acquisition unit is configured as follows:

[0044] A fourth acquisition unit, acquiring second signal strengths, second interference strengths, and second network qualities of the plurality of first candidate frequency bands;

[0045] A fifth acquisition unit is configured to acquire the target connection frequency band from the multiple first candidate frequency bands according to the second signal strength, the second interference strength, and the second network quality.

[0046] In some embodiments, based on the foregoing solution, the fifth acquisition unit is configured as follows:

[0047] a second scoring unit, for each first candidate frequency band in the multiple first candidate frequency bands, scoring the second signal strength, the second interference strength, and the second network quality of the first candidate frequency band, and performing a weighted summation on the scoring results of the second signal strength, the second interference strength, and the second network quality of the first candidate frequency band to obtain a second target score for the first candidate frequency band;

[0048] A sixth acquisition unit is configured to acquire the target connection frequency band from the plurality of first candidate frequency bands according to the second target score of each of the first candidate frequency bands.

[0049] In some embodiments, based on the foregoing solution, the second acquisition unit is configured as follows:

[0050] a seventh acquisition unit, which acquires historical connection data of a plurality of second candidate frequency bands, wherein the historical connection data represents the stability of the vehicle-mounted hotspot being connected to the second candidate frequency band within a historical period;

[0051] An eighth acquiring unit acquires the target connection frequency band from the plurality of second candidate frequency bands according to the historical connection data.

[0052] According to the third aspect of the present application, a computer-readable storage medium is provided, on which a computer program is stored, characterized in that the computer program includes executable instructions, and when the executable instructions are executed by a processor, the method described in any embodiment of the first aspect of the present application is implemented.

[0053] According to the fourth aspect of the present application, an electronic device is provided, comprising: one or more processors; and a memory for storing executable instructions of the processors, wherein when the executable instructions are executed by the one or more processors, the one or more processors implement the method described in any embodiment of the first aspect of the present application.

[0054] The beneficial effects of this application are as follows:

[0055] According to the first signal strength, the first interference intensity and the first network quality of the vehicle hotspot in the current connection frequency band, it is jointly judged whether the first signal strength, the first interference intensity and the first network quality meet the first parameter condition. If so, the vehicle hotspot is switched from the current connection frequency band to the target connection frequency band. On the one hand, manual switching is not required, which improves the switching speed. On the other hand, multiple parameters are used for joint judgment to reduce the probability of erroneous switching and the possibility of frequent switching.

[0056] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0058] Figure 1 A flow chart of a frequency band switching method of a vehicle-mounted hotspot in an embodiment of the present application is shown;

[0059] Figure 2 A block diagram of a frequency band switching device for a vehicle-mounted hotspot in an embodiment of the present application is shown;

[0060] Figure 3 A schematic diagram showing a computer-readable storage medium in an embodiment of the present application is shown;

[0061] Figure 4 A schematic diagram showing the system structure of an electronic device in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions 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 are within the scope of protection of this application.

[0063] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0064] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0065] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0066] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0067] In order to better understand the embodiment of the present application, the vehicle-mounted hotspot is described as follows:

[0068] Car hotspots usually operate in fixed frequency bands such as 2.4GHz or 5GHz. When encountering interference in the same frequency band (such as other wireless devices or dense network environments), the signal is prone to unstable or even disconnection. Different frequency bands have different penetration capabilities and transmission distances. Current technology cannot select the best frequency band based on the internal and external environment of the vehicle or the location of the connected device, resulting in inconsistent signal quality. In traditional technology, frequency band switching often requires users to manually set it or go through a long detection process, and the switching time is long, which can easily cause signal instability. Current technology cannot flexibly adjust the frequency band according to the needs of different peripherals, resulting in some devices with higher signal sensitivity (such as mobile phones, navigation devices) being prone to disconnection under certain conditions.

[0069] Figure 1 A flow chart showing a frequency band switching method of a vehicle-mounted hotspot in an embodiment of the present application is shown. Figure 1 , provides a frequency band switching method for a vehicle-mounted hotspot, including at least S1 to S4, which are described in detail as follows:

[0070] In step S1, a first signal strength, a first interference strength, and a first network quality of the vehicle hotspot in the current connection frequency band are obtained.

[0071] In some embodiments, the obtaining of the first signal strength, the first interference strength and the first network quality of the vehicle-mounted hotspot in the current connection frequency band includes: obtaining the first signal strength, the first interference strength and the first network quality through the environment where the vehicle-mounted hotspot is located by the environment monitoring module. The environment monitoring module can monitor the interference conditions inside and outside the vehicle (the environment where the vehicle-mounted hotspot is located) in real time, such as the signal interference strength of the 2.4GHz or 5GHz frequency band, and can also detect the location information and signal requirements of the connected device in real time. The connected device is a peripheral device connected to the vehicle-mounted hotspot, such as a mobile phone. The signal requirements of the connected device can be the requirements of navigation and streaming media devices for network quality. The environment monitoring module can detect the signal quality and external interference of different frequency bands through the built-in signal receiving antenna and signal analysis algorithm. The signal quality is the signal-to-noise ratio and RSS I, etc. The external interference is the interference of other WI FI and Bluetooth devices to the vehicle-mounted hotspot. The environment detection module can output the surrounding signal environment data of the vehicle-mounted hotspot so that the frequency band management module can make a decision. The surrounding signal environment data includes the first signal strength, the first interference strength and the first network quality. The first signal strength can be obtained by monitoring the signal strength of each frequency band, such as RSS I value is obtained. When monitoring the signal strength of each frequency band, the signal strength can be averaged by sliding window to reduce the error caused by signal fluctuation. Each frequency band includes the current connection frequency band. The first interference strength can be judged by monitoring the signals of other wireless devices, such as using interference detection algorithm to judge, and quantifying the interference strength (Interference Level) through frequency domain analysis methods such as fast Fourier transform (FFT) to compare with the set threshold. The first network quality can be obtained by monitoring the signal-to-noise ratio (SNR) of the vehicle-mounted hotspot in the current frequency band. In addition, the environmental monitoring module can record signal parameters in real time to update short-term historical data such as the signal strength change trend in the last 5 minutes.

[0072] In step S2, it is jointly determined whether the first signal strength, the first interference strength, and the first network quality meet the first parameter condition, that is, the stability and interference evaluation of the current connection frequency band is performed. According to the detected signal and interference conditions, it is determined whether the frequency band needs to be switched. If the frequency band switching requirement is met, the frequency band selection (obtaining the target connection frequency band) and switching decision are entered.

[0073] In some embodiments, the joint determination of whether the first signal strength, the first interference strength, and the first network quality meet the first parameter condition includes: determining through a frequency band management module whether the first signal strength, the first interference strength, and the first network quality meet the first parameter condition, so as to output control information on whether to obtain the target connection frequency band. The frequency band management module analyzes the current signal interference and frequency band quality according to the data provided by the environment monitoring module, such as setting a signal strength threshold and an interference strength threshold, and triggers frequency band switching when the signal quality is lower than the threshold or the interference exceeds the threshold, and intelligently selects the optimal frequency band, i.e., the target connection frequency band, such as combining machine learning or a rule engine, on the one hand, analyzing historical connection data and current environment data (signal quality and interference situation) to dynamically select the most suitable frequency band (optimal frequency band) to reduce the fluctuation caused by frequent switching, and on the other hand, predicting the peak interference period and the period of poor signal through historical connection records and real-time detection data, so as to switch the frequency band in advance, and the frequency band management module can also output frequency band switching time information, determine the frequency band switching time and the target connection frequency band, and pass the decision information (control information for obtaining the target connection frequency band and frequency band switching time information) to the frequency band switching module.

[0074] In this way, a joint judgment is made based on multiple parameters such as the first signal strength, the first interference strength and the first network quality, which is more accurate than a judgment based on a single parameter.

[0075] In step S3, if yes, the target connection frequency band is obtained. If the frequency band switching requirement is met (the first signal strength, the first interference strength and the first network quality meet the first parameter condition), the system selects a target connection frequency band such as 5 GHz or 2.4 GHz according to the environmental data and historical data.

[0076] In step S4, the vehicle hotspot is switched from the current connection frequency band to the target connection frequency band.

[0077] In some embodiments, the joint judgment of whether the first signal strength, the first interference intensity, and the first network quality meet the first parameter condition includes: scoring the first signal strength, the first interference intensity, and the first network quality; weighted summing the scoring results of the first signal strength, the first interference intensity, and the first network quality to obtain a first target score; and judging whether the first signal strength, the first interference intensity, and the first network quality meet the first parameter condition based on the first target score.

[0078] In this way, judging whether the first signal strength, the first interference intensity and the first network quality meet the first parameter condition according to the first target score can be understood as a weighted average algorithm, assigning different weights to the first signal strength, the first interference intensity (interference level) and the first network quality (connection requirement), and determining whether the first parameter condition is met through weighted calculation, that is, using a fuzzy logic algorithm, considering the three dimensions of signal quality, interference intensity and user needs, and assigning a weight to each factor through the fuzzy logic algorithm, to achieve multi-factor comprehensive evaluation and improve decision-making flexibility.

[0079] In some embodiments, the scoring of the first signal strength, the first interference strength, and the first network quality includes: the smaller the first signal strength, the lower the score of the first signal strength, the larger the first interference strength, the lower the score of the first interference strength, the worse the first network quality, the lower the score of the first network quality. The first signal strength is positively correlated with the score of the first signal strength, the score of the first interference strength is negatively correlated with the score of the first interference strength, and the first network quality is positively correlated with the score of the first network quality. In this case, the scoring standard of the first signal strength, the first interference strength, and the first network quality is the first scoring standard.

[0080] In some embodiments, the scoring of the first signal strength, the first interference strength, and the first network quality includes: the smaller the first signal strength, the higher the score of the first signal strength, the larger the first interference strength, the higher the score of the first interference strength, and the worse the first network quality, the higher the score of the first network quality. The first signal strength is inversely correlated with the score of the first signal strength, the score of the first interference strength is positively correlated with the score of the first interference strength, and the first network quality is inversely correlated with the score of the first network quality. In this case, the scoring criteria of the first signal strength, the first interference strength, and the first network quality are the second scoring criteria.

[0081] In some embodiments, judging whether the first signal strength, the first interference intensity, and the first network quality meet the first parameter condition according to the first target score includes: when the scoring standard of the first signal strength, the first interference intensity, and the first network quality is the first scoring standard, if the first target score is greater than the first scoring threshold, it indicates that the first signal strength, the first interference intensity, and the first network quality meet the first parameter condition; when the scoring standard of the first signal strength, the first interference intensity, and the first network quality is the second scoring standard, if the first target score is less than the second scoring threshold, it indicates that the first signal strength, the first interference intensity, and the first network quality meet the first parameter condition.

[0082] In some embodiments, the first network quality includes a first network speed, a first network delay time, and a first signal-to-noise ratio. When the scoring criteria of the first signal strength, the first interference strength, and the first network quality are the first scoring criteria, the slower the first network speed, the higher the score of the first network quality; the longer the first network delay time, the higher the score of the first network quality; and the lower the first signal-to-noise ratio, the higher the score of the first network quality.

[0083] In some embodiments, the first network quality includes a first network speed, a first network delay time, and a first signal-to-noise ratio. When the scoring criteria of the first signal strength, the first interference strength, and the first network quality are the second scoring criteria, the slower the first network speed, the lower the score of the first network quality; the longer the first network delay time, the lower the score of the first network quality; the lower the first signal-to-noise ratio, the lower the score of the first network quality.

[0084] In some implementations, it also includes: scoring the first network speed, the first network delay time, and the first signal-to-noise ratio; weighted summing the scoring results of the first network speed, the first network delay time, and the first signal-to-noise ratio to obtain a score for the first network quality. Wherein, when the scoring standard of the first signal strength, the first interference strength, and the first network quality is the second scoring standard, the slower the first network speed, the higher the score, the longer the first network delay time, the higher the score, and the lower the first signal-to-noise ratio, the higher the score; when the scoring standard of the first signal strength, the first interference strength, and the first network quality is the second scoring standard, the slower the first network speed, the lower the score, the longer the first network delay time, the lower the score, and the lower the first signal-to-noise ratio, the lower the score.

[0085] In some embodiments, the joint judgment of whether the first signal strength, the first interference strength and the first network quality meet the first parameter condition includes: if the first signal strength is less than the first signal threshold, the first interference strength is greater than the first interference threshold, and the first network quality is worse than the first quality threshold, it indicates that the first signal strength, the first interference strength and the first network quality meet the first parameter condition.

[0086] In this way, by setting the threshold, the frequency band can be adaptively adjusted to make the frequency band switching more intelligent and humane, and reduce user intervention.

[0087] In some embodiments, the joint judgment of whether the first signal strength, the first interference strength and the first network quality meet the first parameter condition includes: if the first signal strength is less than a second signal threshold and the first interference strength is greater than a second interference threshold, it indicates that the first signal strength, the first interference strength and the first network quality meet the first parameter condition.

[0088] Exemplarily, based on the rule engine algorithm, logical rules are set, such as "if RSS I < threshold 1 (the first signal strength is less than the second signal threshold) and interference strength > threshold 2 (the first interference strength is greater than the second interference threshold), then trigger switching requirements" so that the system can make quick judgments.

[0089] In some embodiments, after obtaining the first signal strength, first interference strength and first network quality of the vehicle-mounted hotspot in the current connection frequency band, it also includes: when any one of the first signal strength, the first interference strength and the first network quality meets the corresponding second parameter condition, executing the step of obtaining the target connection frequency band.

[0090] In some embodiments, after obtaining the first signal strength, first interference strength and first network quality of the vehicle-mounted hotspot in the current connection frequency band, it also includes: if any one of the first signal strength, the first interference strength and the first network quality does not meet the corresponding second parameter condition, the step of obtaining the target connection frequency band is not performed.

[0091] In some embodiments, it also includes: obtaining the historical signal strength of the vehicle-mounted hotspot in the current connection frequency band, and determining the signal strength change rate according to the historical signal strength and the first signal strength; if the first signal strength is less than the preset signal strength or the signal strength change rate is less than the preset strength change rate, it indicates that the first signal strength meets the corresponding second parameter condition, and the preset signal strength change rate is a negative value. When the first signal strength is an RSS I value, the fact that the first signal strength is less than the preset signal strength can be understood as the RSS I value being lower than the set threshold, indicating that the signal quality is poor.

[0092] In this way, when the first signal strength is less than the preset signal strength, that is, when the signal strength is small, the target connection frequency band is triggered to be acquired; when the signal strength change rate is less than the preset strength change rate, that is, the change trend of the signal strength is decreasing and the decreasing speed is fast, the acquisition of the target connection frequency band is triggered. This is particularly suitable for signal attenuation scenarios. For example, when a vehicle is driving at high speed or turning, the signal strength may be attenuated due to changes in the antenna direction. After the frequency band management module detects that the signal strength change rate is less than the preset strength change rate, that is, the signal strength drops rapidly, it is predicted that the signal is unstable, and switching to other frequency bands (target connection frequency bands) can be considered.

[0093] In some implementations, it also includes: if the first interference intensity is greater than a preset interference intensity, it indicates that the first interference intensity meets the corresponding second parameter condition, that is, it is monitored that the interference intensity of other devices on the current connection frequency band is high, and it is determined that interference exists.

[0094] In this way, if the first interference intensity is greater than the preset interference intensity, the target connection frequency band is triggered to be acquired. This is particularly suitable for high-interference scenarios. For example, when there are multiple WI FI or Bluetooth devices in the car using the same frequency band, the interference signal will increase, resulting in an increase in the data packet loss rate. At this time, the frequency band management module determines that the first interference intensity is greater than the preset interference intensity, that is, when it determines that the interference exceeds the threshold, it triggers the acquisition of the target connection frequency band.

[0095] In some embodiments, it further includes: if the first network speed is less than a preset network speed or the first network delay time is greater than a preset delay time or the first signal-to-noise ratio is less than a preset signal-to-noise ratio, it indicates that the first network quality meets the corresponding second parameter condition. The slower the first network speed or the longer the first network delay time or the smaller the first signal-to-noise ratio, the worse the first network quality. The first signal-to-noise ratio being less than the preset signal-to-noise ratio can be understood as the SNR being lower than a set threshold, indicating that the signal quality is poor.

[0096] In some embodiments, obtaining the target connection frequency band includes: obtaining the second signal strength, the second interference strength, and the second network quality of multiple first candidate frequency bands; and obtaining the target connection frequency band from the multiple first candidate frequency bands according to the second signal strength, the second interference strength, and the second network quality.

[0097] In some embodiments, obtaining the target connection frequency band from the multiple first candidate frequency bands based on the second signal strength, the second interference strength, and the second network quality includes: for each first candidate frequency band in the multiple first candidate frequency bands, scoring the second signal strength, the second interference strength, and the second network quality of the first candidate frequency band, and weighted summing the scoring results of the second signal strength, the second interference strength, and the second network quality of the first candidate frequency band to obtain the second target score of the first candidate frequency band; obtaining the target connection frequency band from the multiple first candidate frequency bands based on the second target score of each of the first candidate frequency bands.

[0098] In this way, according to the second target score of each of the first candidate frequency bands, obtaining the target connection frequency band from the multiple first candidate frequency bands can be understood as adopting a weighted average algorithm, assigning different weights to the second signal strength, the second interference strength (interference level) and the second network quality (connection requirement), and selecting the best frequency band (target connection frequency band) through weighted average calculation.

[0099] In some embodiments, the second signal strength, the second interference strength and the second network quality of the second candidate frequency band are scored, including: the smaller the second signal strength, the lower the score of the second signal strength; the larger the second interference strength, the lower the score of the second interference strength; the worse the second network quality, the lower the score of the second network quality.

[0100] In this way, the second signal strength is positively correlated with the score of the second signal strength, the score of the second interference strength is negatively correlated with the score of the second interference strength, and the second network quality is positively correlated with the score of the second network quality. At this time, the scoring criteria of the second signal strength, the second interference strength and the second network quality are the third scoring criteria.

[0101] In some embodiments, the scoring of the second signal strength, the second interference strength and the second network quality includes: the smaller the second signal strength, the higher the score of the second signal strength; the larger the second interference strength, the higher the score of the second interference strength; the worse the second network quality, the higher the score of the second network quality.

[0102] In this way, the second signal strength is negatively correlated with the score of the second signal strength, the score of the second interference strength is positively correlated with the score of the second interference strength, and the second network quality is negatively correlated with the score of the second network quality. At this time, the scoring criteria of the second signal strength, the second interference strength and the second network quality are the fourth scoring criteria.

[0103] In some embodiments, the target connection frequency band is obtained from the multiple first candidate frequency bands according to the second target score of each first candidate frequency band, including: when the scoring standard of the second signal strength, the second interference strength, and the second network quality is the third scoring standard, the first candidate frequency band with the largest second target score is used as the target connection frequency band; when the scoring standard of the second signal strength, the second interference strength, and the second network quality is the fourth scoring standard, the first candidate frequency band with the smallest second target score is used as the target connection frequency band.

[0104] In some embodiments, the second network quality includes a second network speed, a second network delay time, and a second signal-to-noise ratio. When the scoring criteria of the second signal strength, the second interference strength, and the second network quality are the third scoring criteria, the slower the second network speed, the higher the score of the second network quality; the longer the second network delay time, the higher the score of the second network quality; and the lower the second signal-to-noise ratio, the higher the score of the second network quality.

[0105] In some embodiments, the second network quality includes a second network speed, a second network delay time, and a second signal-to-noise ratio. When the scoring criteria of the second signal strength, the second interference strength, and the second network quality are the fourth scoring criteria, the slower the second network speed, the lower the score of the second network quality; the longer the second network delay time, the lower the score of the second network quality; the lower the second signal-to-noise ratio, the lower the score of the second network quality.

[0106] In some implementations, it also includes: scoring the second network speed, the second network delay time, and the second signal-to-noise ratio; weighted summing the scoring results of the second network speed, the second network delay time, and the second signal-to-noise ratio to obtain a score for the second network quality. Wherein, when the scoring criteria of the second signal strength, the second interference strength, and the second network quality are the third scoring criteria, the slower the second network speed, the higher the score, the longer the second network delay time, the higher the score, and the lower the second signal-to-noise ratio, the higher the score; when the scoring criteria of the second signal strength, the second interference strength, and the second network quality are the fourth scoring criteria, the slower the second network speed, the lower the score, the longer the second network delay time, the lower the score, and the lower the second signal-to-noise ratio, the lower the score.

[0107] In some embodiments, obtaining the target connection frequency band includes: obtaining historical connection data of multiple second candidate frequency bands, the historical connection data representing the stability of connecting to the second candidate frequency band within a historical period of the vehicle-mounted hotspot; and obtaining the target connection frequency band from the multiple second candidate frequency bands based on the historical connection data.

[0108] In some embodiments, the target connection frequency band is obtained from the multiple second candidate frequency bands based on the historical connection data, including: for each second candidate frequency band, determining the offline time within the target time period based on the historical connection data of the second candidate frequency band; taking the second candidate frequency band with the shortest offline time as the target connection frequency band, that is, within the target time period, the second candidate frequency band with the shortest offline time is the target connection frequency band, and the target connection frequency band thus obtained has performed well in past historical records, such as less offline and high stability, and has a higher priority.

[0109] In some embodiments, the historical connection data includes historical connection environment data and historical connection stability data, and the acquiring the target connection frequency band from the multiple second candidate frequency bands according to the historical connection data includes: predicting the target connection frequency band according to the historical connection environment data and the historical connection stability data through a machine learning module. The target connection frequency band can be understood as an optimal frequency band, and the machine learning module can be a decision tree or a random forest, etc., which analyzes and learns the performance of different frequency bands in various scenarios according to historical data to improve the accuracy of frequency band selection.

[0110] In this way, the historical connection data is used to learn the frequency band selection mode, thereby improving the accuracy and efficiency of the frequency band selection.

[0111] In some embodiments, the acquisition of the target connection frequency band includes: acquiring the third interference strength and the third signal strength of multiple third candidate frequency bands; for each third candidate frequency band, if the third interference strength of the third candidate frequency band is less than the third interference threshold, the third candidate frequency band is used as the fourth candidate frequency band, and the fourth candidate frequency band can be understood as a frequency band with less interference; for each fourth candidate frequency band, if the third signal strength of the fourth candidate frequency band is greater than the third signal threshold, the fourth candidate frequency band is used as the target connection frequency band, and the target connection frequency band can be understood as a frequency band with higher signal strength among frequency bands with less interference, which is suitable for situations where signal strength is prioritized or scenarios where peripherals have high requirements for signal quality (such as navigation or video calls). The third signal strength and the third signal threshold can be RSS I values.

[0112] In some implementations, after the third candidate frequency band is used as the fourth candidate frequency band, the method further includes: using the fourth candidate frequency band with the largest third signal strength as the target connection frequency band.

[0113] In some embodiments, the obtaining of the target connection frequency band includes: obtaining the current interference strength of the first frequency band and the second frequency band; if the current interference strength of the first frequency band is less than the fourth interference threshold, the first frequency band is used as the target connection frequency band, that is, when the interference of the first frequency band is low, such as in remote areas, the first frequency band is preferably selected as the target connection frequency band; if the current interference strength of the second frequency band is greater than the fifth interference threshold, the second frequency band is used as the target connection frequency band, that is, when the interference is high or the coverage requirement is large, the second frequency band is selected as the target connection frequency band to ensure the coverage effect. The first frequency band can be 5GHz, and the second frequency band can be 2.4GHz.

[0114] In some implementations, before switching the vehicle hotspot from the current connection frequency band to the target connection frequency band, the method further includes: acquiring network configuration parameters of the target connection frequency band; and configuring the vehicle hotspot according to the network configuration parameters.

[0115] In this way, a seamless switching algorithm is adopted. Before switching, the connection parameters of the target connection frequency band are established (the vehicle-mounted hotspot is configured according to the network configuration parameters), and the current connection frequency band is disconnected after the connection of the target connection frequency band is stable, thereby reducing the risk of disconnection during switching. Through the pre-configuration mechanism, smooth switching is performed to avoid data loss or interruption during the switching process. The original connection is disconnected after a new frequency band connection is established, reducing the user-perceived connection interruption, connection freeze and switching delay (switching time), making the switching faster and more seamless, so as to ensure uninterrupted connection and improve user experience.

[0116] Exemplarily, when a seamless switching algorithm is adopted, dual-band connection technology (establishing dual connections between 2.4 GHz and 5 GHz) is used to achieve seamless connection during the switching process, ensuring connection stability and data continuity.

[0117] In some embodiments, after switching the vehicle hotspot from the current connection frequency band to the target connection frequency band, it also includes: determining whether the vehicle hotspot is connected to the target connection frequency band, and if so, jointly determining whether the signal strength, interference strength and network quality of the vehicle hotspot in the target connection frequency band meet the first parameter conditions, and if not, returning the vehicle hotspot to the current connection frequency band.

[0118] In this way, based on the adaptive feedback mechanism, the signal status after switching is monitored in real time through the state feedback mechanism (jointly judging whether the signal strength, interference strength and network quality of the vehicle-mounted hotspot in the target connection frequency band meet the first parameter conditions), that is, the connection stability is re-determined, and the signal monitoring parameters are re-monitored according to the new environment. If the signal is not good after the switch (the signal strength, interference strength and network quality of the vehicle-mounted hotspot in the target connection frequency band do not meet the first parameter conditions), it will fall back to the current connection frequency band or try other candidate frequency bands. Through the feedback mechanism, the connection interruption and freeze perceived by users are reduced, and the user experience is improved.

[0119] In some embodiments, after the joint determination of whether the signal strength, interference strength and network quality of the vehicle hotspot in the target connection frequency band meet the first parameter conditions, it also includes: if so, disconnecting the vehicle hotspot from the current connection frequency band, and maintaining the state of the vehicle hotspot connected to the target connection frequency band, that is, the vehicle hotspot does not fall back to the current connection frequency band.

[0120] In this way, the frequency band switching module executes the frequency band switching instruction of the frequency band management module, and monitors the connection status during the switching process to ensure that the connection of the vehicle hotspot is not interrupted, and ensure the connection stability and data transmission continuity during the switching process. After the switching is completed, it is determined whether the vehicle hotspot is connected to the target connection frequency band, that is, the current signal status is reconfirmed. If the vehicle hotspot enters a stable connection mode (the signal strength, interference strength and network quality of the vehicle hotspot in the target connection frequency band meet the first parameter conditions), the stability of the target connection frequency band is continuously monitored.

[0121] In some embodiments, it also includes: in response to the user's control signal, sorting the candidate frequency bands, or not executing the step of switching the vehicle-mounted hotspot from the current connection frequency band to the target connection frequency band, or setting a preset signal strength, or setting a preset interference strength, or setting a preset network speed, or setting a preset delay time, or setting a preset signal-to-noise ratio. Sorting the candidate frequency bands can be understood as setting the frequency band priority (such as giving priority to 5GHz or 2.4GHz). When obtaining the target connection frequency band, the candidate frequency band with the highest ranking (highest priority) is used as the target connection frequency band. Not executing the step of switching the vehicle-mounted hotspot from the current connection frequency band to the target connection frequency band can be understood as locking the current connection frequency band to meet the use requirements in special circumstances. The user can send a control signal through the control interface, or view the current connection frequency band, signal quality, and frequency band switching history through the control interface, so as to help the user understand the connection status and realize visual feedback. Setting a preset signal strength, or setting a preset interference strength, or setting a preset network speed, or setting a preset delay time, or setting a preset signal-to-noise ratio can be understood as setting the switching sensitivity to meet personalized needs.

[0122] The present application can be understood as an adaptive frequency band adjustment technology. On the one hand, it detects the interference of the current connection frequency band and automatically switches to the frequency band with less interference, namely, the target connection frequency band, thereby reducing the impact of signal congestion. On the other hand, it can dynamically switch between multiple frequency bands according to actual conditions, thereby improving the transmission effect and stability of the signal, that is, improving the stability of the peripheral connection and the data transmission quality. On the one hand, it realizes fast and real-time frequency band adjustment, effectively avoiding long-term signal instability. On the one hand, it can give priority to the selection of a better frequency band to ensure signal quality, so that key equipment always maintains the best connection state. On the one hand, according to the first signal strength, the first interference strength and the first network quality of the vehicle-mounted hotspot in the current connection frequency band, it is jointly judged whether the first signal strength, the first interference strength and the first network quality meet the first parameter condition. If so, the vehicle-mounted hotspot is switched from the current connection frequency band to the target connection frequency band. On the one hand, manual switching is not required, which improves the switching speed. On the other hand, the use of multiple parameters for joint judgment can more comprehensively judge the switching needs and reduce the probability of erroneous switching and the possibility of frequent switching.

[0123] According to a second aspect of the present application, a frequency band switching device 100 for a vehicle-mounted hotspot is provided, the device comprising:

[0124] A first acquisition unit 101 acquires a first signal strength, a first interference strength, and a first network quality of the vehicle-mounted hotspot in a current connection frequency band;

[0125] A first judging unit 102 jointly judges whether the first signal strength, the first interference strength and the first network quality meet a first parameter condition;

[0126] The second acquisition unit 103, if yes, acquires the target connection frequency band;

[0127] The first switching unit 104 switches the vehicle-mounted hotspot from the current connection frequency band to the target connection frequency band.

[0128] In some embodiments, the first judgment unit is configured as: a first scoring unit, which scores the first signal strength, the first interference strength, and the first network quality; a first summing unit, which weightedly sums the scoring results of the first signal strength, the first interference strength, and the first network quality to obtain a first target score; and a second judgment unit, which judges whether the first signal strength, the first interference strength, and the first network quality meet a first parameter condition based on the first target score.

[0129] In some embodiments, a first execution unit is further included. After obtaining the first signal strength, the first interference intensity and the first network quality of the vehicle-mounted hotspot in the current connection frequency band, the first execution unit is configured as: a second execution unit, when any one of the first signal strength, the first interference intensity and the first network quality meets the corresponding second parameter condition, executes the step of obtaining the target connection frequency band.

[0130] In some embodiments, it also includes: a third acquisition unit, which acquires the historical signal strength of the vehicle hotspot in the current connection frequency band, and determines the signal strength change rate based on the historical signal strength and the first signal strength; a first compliance unit, if the first signal strength is less than the preset signal strength or the signal strength change rate is less than the preset strength change rate, it indicates that the first signal strength meets the corresponding second parameter condition, and the preset signal strength change rate is a negative value.

[0131] In some embodiments, the second acquisition unit is configured as: a fourth acquisition unit, acquiring the second signal strength, the second interference strength, and the second network quality of multiple first candidate frequency bands; a fifth acquisition unit, acquiring the target connection frequency band from the multiple first candidate frequency bands according to the second signal strength, the second interference strength, and the second network quality.

[0132] In some embodiments, the fifth acquisition unit is configured as: a second scoring unit, which scores the second signal strength, the second interference strength and the second network quality of each first candidate frequency band in the multiple first candidate frequency bands, and weightedly sums the scoring results of the second signal strength, the second interference strength and the second network quality of the first candidate frequency band to obtain the second target score of the first candidate frequency band; a sixth acquisition unit, which acquires the target connection frequency band from the multiple first candidate frequency bands according to the second target score of each of the first candidate frequency bands.

[0133] In some embodiments, the second acquisition unit is configured as: a seventh acquisition unit, acquiring historical connection data of multiple second candidate frequency bands, wherein the historical connection data characterizes the stability of connecting to the second candidate frequency band within a historical period of the vehicle-mounted hotspot; and an eighth acquisition unit, acquiring the target connection frequency band from the multiple second candidate frequency bands based on the historical connection data.

[0134] Based on the same inventive concept, as a third aspect, the present application also provides a computer-readable storage medium on which is stored a program product capable of implementing the frequency band switching method of a vehicle-mounted hotspot described above in this specification. In some possible implementations, various aspects of the present application can also be implemented in the form of a program product, which includes a program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps described in the above "Exemplary Method" section of this specification according to various exemplary implementations of the present application.

[0135] refer to Figure 3 As shown, a program product 200 for implementing the above method according to an embodiment of the present application is described, which can adopt a portable compact disk read-only memory (CD-ROM) and include program code, and can be run on a terminal device, such as a personal computer. However, the program product of the present application is not limited thereto. In this document, a readable storage medium can be any tangible medium containing or storing a program, which can be used by or in combination with an instruction execution system, an apparatus or a device.

[0136] The program product may use any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0137] Computer readable signal media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Readable signal media may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0138] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0139] Program code for performing the operations of the present application may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., using an Internet service provider to connect through the Internet).

[0140] As another aspect, the present application also provides an electronic device capable of implementing the above method.

[0141] Those skilled in the art will appreciate that various aspects of the present application may be implemented as a system, method or program product. Therefore, various aspects of the present application may be specifically implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to as "circuit", "module" or "system" herein.

[0142] Refer to the following Figure 4 The electronic device 300 according to this embodiment of the present application is described. Figure 4 The electronic device 300 shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0143] like Figure 4 As shown, the electronic device 300 is in the form of a general computing device. The components of the electronic device 300 may include but are not limited to: at least one processing unit 310, at least one storage unit 320, and a bus 330 connecting different system components (including the storage unit 320 and the processing unit 310).

[0144] The storage unit stores program codes, which can be executed by the processing unit 310, so that the processing unit 310 executes the steps described in the above “Example Method” section of this specification according to various exemplary implementations of the present application.

[0145] The storage unit 320 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 321 and / or a cache memory unit 322 , and may further include a read-only memory unit (ROM) 323 .

[0146] The storage unit 320 may also include a program / utility 324 having a set (at least one) of program modules 325, such program modules 325 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0147] Bus 330 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0148] The electronic device 300 may also communicate with one or more external devices 400 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), one or more devices that enable a user to interact with the electronic device 300, and / or any device that enables the electronic device 300 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed through an input / output (I / O) interface 350. Furthermore, the electronic device 300 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 360. Figure 4 As shown, the network adapter 360 communicates with other modules of the electronic device 300 via the bus 330. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the electronic device 300, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0149] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on a computer-readable medium or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these. In addition, each functional unit may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit.

[0150] The above description is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A frequency band switching method for a vehicle-mounted hotspot, characterized in that: include: Obtaining a first signal strength, a first interference strength, and a first network quality of the vehicle hotspot in the current connection frequency band; jointly determining whether the first signal strength, the first interference strength, and the first network quality meet a first parameter condition; If yes, obtain the target connection frequency band; The vehicle hotspot is switched from the current connection frequency band to the target connection frequency band.

2. The frequency band switching method of a vehicle-mounted hotspot according to claim 1, characterized in that: The jointly determining whether the first signal strength, the first interference strength, and the first network quality meet a first parameter condition includes: scoring the first signal strength, the first interference strength, and the first network quality; Performing a weighted summation on the scoring results of the first signal strength, the first interference strength, and the first network quality to obtain a first target score; It is determined whether the first signal strength, the first interference strength, and the first network quality meet a first parameter condition according to the first target score.

3. The frequency band switching method of a vehicle-mounted hotspot according to claim 1, characterized in that: After obtaining the first signal strength, the first interference strength and the first network quality of the vehicle-mounted hotspot in the current connection frequency band, the method further includes: When any one of the first signal strength, the first interference strength and the first network quality meets the corresponding second parameter condition, the step of acquiring the target connection frequency band is performed.

4. The frequency band switching method of a vehicle-mounted hotspot according to claim 3, characterized in that: Also includes: Obtaining a historical signal strength of the vehicle-mounted hotspot in a currently connected frequency band, and determining a signal strength change rate according to the historical signal strength and the first signal strength; If the first signal strength is less than the preset signal strength or the signal strength change rate is less than the preset strength change rate, it indicates that the first signal strength meets the corresponding second parameter condition and the preset signal strength change rate is a negative value.

5. A frequency band switching method for a vehicle-mounted hotspot according to any one of claims 1 to 4, characterized in that: The obtaining of the target connection frequency band includes: Obtaining second signal strengths, second interference strengths, and second network qualities of multiple first candidate frequency bands; The target connection frequency band is acquired from the multiple first candidate frequency bands according to the second signal strength, the second interference strength and the second network quality.

6. The frequency band switching method of a vehicle-mounted hotspot according to claim 5, characterized in that: The acquiring the target connection frequency band from the multiple first candidate frequency bands according to the second signal strength, the second interference strength, and the second network quality includes: For each first candidate frequency band in the multiple first candidate frequency bands, score the second signal strength, the second interference strength, and the second network quality of the first candidate frequency band, and perform weighted summation on the scoring results of the second signal strength, the second interference strength, and the second network quality of the first candidate frequency band to obtain a second target score for the first candidate frequency band; The target connection frequency band is acquired from the multiple first candidate frequency bands according to the second target score of each of the first candidate frequency bands.

7. A frequency band switching method for a vehicle-mounted hotspot according to any one of claims 1 to 4, characterized in that: The obtaining of the target connection frequency band includes: Acquire historical connection data of a plurality of second candidate frequency bands, wherein the historical connection data represents the stability of the vehicle-mounted hotspot being connected to the second candidate frequency band within a historical period; The target connection frequency band is acquired from the plurality of second candidate frequency bands according to the historical connection data.

8. A frequency band switching device for a vehicle-mounted hotspot, characterized in that: The device comprises: A first acquisition unit, which acquires a first signal strength, a first interference strength, and a first network quality of the vehicle-mounted hotspot in a current connection frequency band; A first judging unit, jointly judging whether the first signal strength, the first interference strength and the first network quality meet a first parameter condition; The second acquisition unit, if yes, acquires the target connection frequency band; The first switching unit switches the vehicle-mounted hotspot from the current connection frequency band to the target connection frequency band.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The computer program includes executable instructions, and when the executable instructions are executed by a processor, the method described in any one of claims 1 to 7 is implemented.

10. An electronic device, characterized in that: include: one or more processors; A memory for storing executable instructions of the processor, wherein when the executable instructions are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 7.

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