CN110620600B

CN110620600B - Vehicle-mounted radio and control method

Info

Publication number: CN110620600B
Application number: CN201910858494.XA
Authority: CN
Inventors: 王建强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2021-10-26
Anticipated expiration: 2039-09-11
Also published as: CN110620600A

Abstract

The embodiment of the application discloses a vehicle-mounted radio and a control method, and the vehicle-mounted radio can be applied to vehicles such as intelligent vehicles and vehicles adopting the Internet of vehicles technology. The car radio includes: the signal intensity detection module is used for detecting the signal intensity of the vehicle-mounted radio; the positioning module is used for determining the type of the geographic position of the vehicle-mounted radio; the control module is used for acquiring the signal intensity of the vehicle-mounted radio; obtaining the type of the geographic position of the vehicle-mounted radio; determining that the signal strength is lower than a preset first threshold value, and the type of the geographic position belongs to a preset weak signal type, and executing noise reduction processing; wherein the weak signal type is of a type that would cause the car radio to generate noise at a geographic location. By adopting the vehicle-mounted radio and the control method, the accuracy of automatically executing noise reduction processing when noise is generated can be improved.

Description

Vehicle-mounted radio and control method

Technical Field

The application relates to the technical field of vehicle-mounted radios, in particular to a vehicle-mounted radio and a control method.

Background

A vehicle-mounted radio is a voice entertainment device installed on a vehicle. Like a general radio, a car radio receives a signal transmitted by radio broadcasting and restores it to sound. When the vehicle enters some areas with poor signals, such as underground garages, tunnels and the like, the signals are weakened, and the radio generates great noise, so that the hearing of people is damaged, and the emotion and the feeling of a user are influenced. When this is encountered, the user is required to manually turn the car radio off or mute. This may affect the driving safety and the use experience of the user.

In order to avoid manual operation by a user, some vehicle-mounted radios realize automatic noise reduction processing by detecting signal strength. That is, the car radio detects the signal strength, and when the signal strength is continuously lower than a preset threshold value within a preset time period, the noise reduction processing is performed, for example, the car radio is turned off, or the volume of the car radio is adjusted to be mute, etc.

However, in some scenarios, the signal strength of the car radio may be fluctuating above and below a predetermined threshold, rather than continuously falling below the threshold. Since the condition for performing the noise reduction processing is not satisfied, the in-vehicle radio is not automatically turned off or muted, so that the manual operation by the user is still required. Therefore, the accuracy of the existing car radio that automatically executes the noise reduction processing when noise is generated is low.

Disclosure of Invention

The application provides a vehicle-mounted radio and a control method. When noise is generated, the vehicle-mounted radio can automatically execute noise reduction processing, and the accuracy is high.

In a first aspect, the present application provides a car radio comprising: the signal intensity detection module is used for detecting the signal intensity of the vehicle-mounted radio; the positioning module is used for determining the type of the geographic position of the vehicle-mounted radio; the control module is used for acquiring the signal intensity of the vehicle-mounted radio; obtaining the type of the geographic position of the vehicle-mounted radio; determining that the signal strength is lower than a preset first threshold value, and the type of the geographic position belongs to a preset weak signal type, and executing noise reduction processing; wherein the weak signal type is of a type that would cause the car radio to generate noise at a geographic location.

By adopting the implementation mode, the control module utilizes the signal intensity and the type of the geographic position of the vehicle-mounted radio to jointly judge whether the noise reduction processing is required to be executed. Therefore, the problem that the noise reduction processing cannot be accurately and automatically executed when the signal intensity of the vehicle-mounted radio is above or below the threshold value in the prior art is solved, and the problem that the noise reduction processing cannot be executed mistakenly when the vehicle-mounted radio can be normally played in a weak signal area is also solved. The vehicle-mounted radio in the implementation mode can reduce the situation that the noise reduction processing is executed but not executed, and can also reduce the situation that the noise reduction processing is not executed, so that the accuracy of automatically executing the noise reduction processing is improved on the whole, and the user experience is improved.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the positioning module is further configured to determine geographic location information of the vehicle-mounted radio; the control module is also used for acquiring the geographic position information of the vehicle-mounted radio; determining that the geographic position information belongs to first type information, and executing noise reduction processing; wherein the first type of information includes at least one first location information describing a first geographic location; when the vehicle-mounted radio is located at the first geographic position, the cumulative times of the control module for executing the noise reduction processing exceed a preset first time, or when the vehicle-mounted radio is located at the first geographic position, the continuous times of the control module for executing the noise reduction processing exceed a preset second time.

By adopting the implementation mode, the information of the specific position for executing the noise reduction processing for a plurality of times in an accumulated way or continuously executing the noise reduction processing for a plurality of times is divided into the first type of information, so that the vehicle-mounted radio has the functions of statistics and self-learning. When the current geographic position of the vehicle-mounted radio is detected to belong to the first type of information, the control module can directly execute noise reduction processing without acquiring and judging the signal intensity of the vehicle-mounted radio, and the user experience is favorably improved.

With reference to the first aspect and the foregoing possible implementation manners, in a second possible implementation manner of the first aspect, the car radio further includes: the input and output module is used for displaying the signal intensity and the geographical position information; acquiring a first operation instruction; the first operation instruction is an operation instruction which is input by a user based on the signal intensity and is used for instructing the control module to divide the geographical position information into a second type of information; the control module is also used for dividing the geographical position information into second type information according to the first operation instruction; and determining that the geographic position information belongs to the second type of information, and executing noise reduction processing.

With the implementation mode, the information of the geographical position concerned by the user is set as the second type information manually by the user. Therefore, when the fact that the geographic position where the vehicle-mounted radio is located belongs to the second type of information is detected, the control module can directly execute noise reduction processing without acquiring and judging the signal intensity of the vehicle-mounted radio, and user experience is facilitated to be improved.

With reference to the first aspect and the foregoing possible implementation manners, in a third possible implementation manner of the first aspect, the control module is further configured to determine that the signal strength is lower than a preset second threshold, and record the geographic position information; determining that the recorded accumulated times of the same geographical position information exceed a preset third time, and indicating the input/output module to display the signal intensity and the geographical position information; wherein the second threshold value is less than or equal to the first threshold value.

By adopting the implementation mode, the control module judges whether the signal intensity and the geographical position information of the current vehicle-mounted radio are necessary to be displayed for the user according to the condition of the past signal intensity of the current geographical position of the vehicle-mounted radio, so that the problem that the signal intensity and the geographical position information of the vehicle-mounted radio are continuously displayed to cause interference to the user is avoided, and the user experience is improved.

With reference to the first aspect and the foregoing possible implementation manners, in a fourth possible implementation manner of the first aspect, the control module is further configured to determine that the signal strength is lower than a preset third threshold value, and record geographic location information of the vehicle-mounted radio; determining that the accumulated record of the same geographical position information exceeds a preset fourth time, and dividing the geographical position information into third type information; determining that the geographical position information of the vehicle-mounted radio is contained in the third type of information, and executing noise reduction processing; wherein the third threshold value is less than or equal to the first threshold value.

By adopting the implementation mode, the control module can automatically judge whether the geographical position information meeting the requirements is divided into the third type of information according to the signal intensity of the vehicle-mounted radio in different positions. Therefore, when the current geographic position of the vehicle-mounted radio is detected to belong to the third type of information, the control module can directly execute noise reduction processing without acquiring and judging the signal intensity of the vehicle-mounted radio, and the user experience is favorably improved.

With reference to the first aspect and the foregoing possible implementation manners, in a fifth possible implementation manner of the first aspect, the control module is further configured to delete any one of the first location information in the first class of information from the first class of information when the first location information is not used to trigger the step of performing noise reduction processing within a preset first time period; or, the control module is further configured to delete any one of the second location information in the second class of information from the second class of information when the second location information is not used to trigger the step of performing noise reduction processing within a preset second time period; or, the control module is further configured to delete any one of the third location information in the third type of information from the third type of information when the third location information is not used to trigger the step of performing noise reduction processing within a preset third time period.

By adopting the implementation mode, when the activity area of the vehicle where the vehicle-mounted radio is located changes, the vehicle-mounted radio can make adaptive change, the position information which is not used for triggering the execution of the noise reduction processing in the first type of information, the second type of information or the third type of information for a long time is automatically deleted, the occupation of a memory is avoided, the speed of judging whether the noise reduction processing is executed or not by utilizing the first type of information, the second type of information or the third type of information is improved, and the user experience is improved.

With reference to the first aspect and the foregoing possible implementation manners, in a sixth possible implementation manner of the first aspect, the control module is further configured to perform noise reduction processing when a duration of the signal strength that is lower than a preset fourth threshold reaches a preset fourth time period, where the fourth threshold is smaller than or equal to the first threshold.

By adopting the implementation mode, when the signal intensity of the vehicle-mounted radio is continuously poor, the control module can directly execute noise reduction processing.

With reference to the first aspect and the foregoing possible implementations, in a seventh possible implementation of the first aspect, the positioning module includes: a global positioning system GPS module, a vehicle wireless communication module or a Bluetooth communication module.

With reference to the first aspect and the foregoing possible implementation manners, in an eighth possible implementation manner of the first aspect, the control module is further configured to instruct to turn off the car radio; or indicating to reduce the volume of the vehicle-mounted radio to a preset volume; or, instructing to play the audio file in the local storage medium.

In a second aspect, the present application provides a vehicle comprising any of the car radios of the first aspect.

In a third aspect, the present application provides a control method for a car radio, a control module for being provided in the car radio, the method comprising: the control module acquires the signal intensity of the vehicle-mounted radio; the control module acquires the type of the geographic position of the vehicle-mounted radio; if the signal strength is lower than a preset first threshold value and the type of the geographic position belongs to a preset weak signal type, the control module executes noise reduction processing; wherein the weak signal type is of a type that would cause the car radio to generate noise at a geographic location.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the method further includes: the control module indicates and displays the signal intensity of the vehicle-mounted radio and the geographical position information of the vehicle-mounted radio; the control module divides the geographical position information into second type information according to a first operation instruction; the first operation instruction is an operation instruction which is input by a user based on the signal strength and is used for instructing the control module to divide the geographical position information into the second type of information; and if the geographic position information belongs to the second type of information, the control module executes noise reduction processing.

With reference to the third aspect and the foregoing possible implementation manners, in a second possible implementation manner of the third aspect, the step of the control module instructing to display the signal strength of the car radio and the geographic location information of the car radio includes: when the signal intensity is lower than a preset second threshold value, the control module records the geographical position information, wherein the second threshold value is smaller than or equal to the first threshold value; and if the recorded accumulated times of the same geographical position information exceed a preset third time, the control module indicates to display the signal strength and the geographical position information.

With reference to the third aspect and the foregoing possible implementation manners, in a third possible implementation manner of the third aspect, the method further includes: when the signal intensity is lower than a preset third threshold value, the control module records the geographical position information of the vehicle-mounted radio; wherein the third threshold value is less than or equal to the first threshold value; if the same geographical position information is cumulatively recorded for more than a preset fourth time, the control module divides the geographical position information into third type information; and if the geographical position information of the vehicle-mounted radio belongs to the third type of information, the control module executes noise reduction processing.

With reference to the third aspect and the foregoing possible implementation manners, in a fourth possible implementation manner of the third aspect, the method further includes: if any first position information in the first type information is not used for triggering the step of executing the noise reduction processing within a preset first time period, the control module deletes the first position information from the first type information; or, if any second location information in the second type of information is not used for triggering the step of performing noise reduction processing within a preset second time period, the control module deletes the second location information from the second type of information; or, if any third location information in the third type of information is not used to trigger the step of performing noise reduction processing within a preset third time period, the control module deletes the third location information from the third type of information.

With reference to the third aspect and the foregoing possible implementation manners, in a fifth possible implementation manner of the third aspect, the method further includes: and if the duration of the signal strength lower than a preset fourth threshold reaches a preset fourth time period, executing noise reduction processing by the control module, wherein the fourth threshold is smaller than or equal to the first threshold.

With reference to the third aspect and the foregoing possible implementation manners, in a sixth possible implementation manner of the third aspect, the method further includes: and if the duration of the signal strength lower than a preset fourth threshold reaches a preset fourth time period, executing noise reduction processing by the control module, wherein the fourth threshold is smaller than or equal to the first threshold.

With reference to the third aspect and the foregoing possible implementation manners, in a seventh possible implementation manner of the third aspect, the step of the control module acquiring the geographic location information of the vehicle-mounted radio includes: and acquiring the geographical position information of the vehicle-mounted radio through a global positioning system, a vehicle wireless communication technology or a Bluetooth communication technology.

With reference to the third aspect and the foregoing possible implementation manners, in an eighth possible implementation manner of the third aspect, the step of performing noise reduction processing by the control module includes: the control module instructs to turn off the vehicle-mounted radio; or the control module instructs to reduce the volume of the vehicle-mounted radio to a preset volume; or the control module instructs to play the audio file in the local storage medium.

In a fourth aspect, the present application provides a chip system comprising at least one processor and an interface; the interface is used for receiving code instructions and transmitting the at least one processor; the at least one processor executes the code instructions to perform any of the methods of the third aspect.

In a fifth aspect, the present application provides a computer readable storage medium for storing a computer program or instructions for causing an electronic device to perform any of the methods of the third aspect when the computer program or instructions are run on the electronic device.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings in the embodiments will be briefly described below.

FIG. 1 is a schematic diagram of an implementation manner of a car radio in the embodiment of the present application;

fig. 2 is a schematic flowchart of a first implementation manner of a control method executed by a control module in an embodiment of the present application;

fig. 3 is a schematic diagram of a user interface of an input/output module when displaying signal strength and geographical location information in an implementation manner of the embodiment of the present application;

FIG. 4 is a schematic diagram of a user interface when a user interacts with an input/output module in an implementation manner according to an embodiment of the present application;

FIG. 5 is a flowchart illustrating a second implementation manner of a control method executed by a control module in an embodiment of the present application

Fig. 6 is a schematic structural diagram of an implementation manner of a chip system in the embodiment of the present application.

Detailed Description

In addition to the method for implementing automatic noise reduction processing by detecting signal strength, in order to avoid manual operation by a user, some car radios implement automatic noise reduction processing by determining the position of the car radio, i.e., the geographical position of the vehicle. Specifically, the vehicle-mounted radio acquires a low signal area marked in advance and then judges whether the current geographical position of the vehicle is in the low signal area. If the signal is in the weak signal area, noise reduction processing is executed.

For different vehicle-mounted radios, the vehicle-mounted radios are located in the same weak signal area, some vehicle-mounted radios can normally play, and some vehicle-mounted radios can generate noise. When the same vehicle-mounted radio is in the same weak signal area at different time points, the same vehicle-mounted radio can be normally played sometimes, and noise is generated sometimes. That is, at some point, the car radio is still playing normally, although it is in the low signal area. In this case, the on-board radio should not perform the noise reduction processing originally, but the noise reduction processing may be erroneously performed by using the scheme of determination based on the geographical location. This also results in a low accuracy of the car radio in automatically performing the noise reduction processing when noise is generated, which affects the user experience.

To this end, embodiments of the present application provide a car radio that can be mounted on a vehicle, such as an automobile, a motorcycle, a train, a ship, and the like. The vehicle-mounted radio can accurately and automatically execute noise reduction processing when generating noise, avoids manual operation of a user as much as possible, and improves user experience.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an implementation manner of a car radio in an embodiment of the present application. The car radio comprises an antenna 101, a signal receiving module 102, a signal strength detecting module 103, a control module 104, an audio processing module 105, a loudspeaker 106, a positioning module 107, an input and output module 108 and a power supply module 109.

The antenna 101 is a radio antenna for receiving electromagnetic wave signals. The antenna 101 may be a Frequency Modulation (FM) antenna or an Amplitude Modulation (AM) antenna. In addition, FM and AM may share one antenna.

The signal receiving module 102 is connected to the antenna 101 and the control module 104, and is configured to convert an electromagnetic wave signal (analog signal) received by the antenna 101 into a digital signal. In the embodiment of the present application, the digital signal converted by the signal receiving module 102 is referred to as a wireless digital signal. The signal receiving module 102 is further configured to output the wireless digital signal to the control module 104.

The signal strength detection module 103 is disposed on a connection path between the antenna 101 and the signal receiving module 102, and is configured to detect the signal strength of the car radio.

The ratio between the intensity of the sound Signal transmitted by the sound source (hereinafter referred to as the Signal intensity of the sound source) received by the radio antenna and the Signal intensity of the Noise is referred to as the Signal-to-Noise ratio (Signal/Noise). Generally, the larger the signal-to-noise ratio is, the larger the sound source signal in the signal received by the antenna 101 is, the smaller the noise signal is; the larger the signal-to-noise ratio, the smaller the sound source signal in the signal received by the antenna 101, the larger the noise signal. The signal strength of the car radio detected by the signal strength detection module 103 is a parameter representing the signal strength of the sound source received by the antenna 101, and the unit is dB. In one implementation, the signal strength of the car radio may be represented using the aforementioned signal-to-noise ratio.

The signal strength detection module 103 is matched to the type of the antenna 101. For example, when the antenna 101 is an FM antenna, the signal strength detection module 103 may be a conventional FM detection unit. The signal strength detection module 103 may directly output the detected signal strength to the control module 104, or may output the detected signal strength to the signal receiving module 102, and the signal receiving module 102 transmits the detected signal strength to the control module 104.

The control module 104 is connected to the audio processing module 105, and is configured to process the wireless digital signal to obtain an audio digital signal, and output the audio digital signal to the audio processing module 105. The control module 104 may also perform noise reduction processing according to other information obtained, such as the signal strength of the car radio, the type of geographic location of the car radio, and so on. The process of the control module 104 performing these control methods will be described in detail later.

The audio processing module 105 is connected to the speaker 106, and is configured to convert the audio digital signal input by the control module 104 into an audio analog signal, and output the audio analog signal to the speaker 106.

The speaker 106, also called a "speaker", is used to convert an audio analog signal into a sound signal so that a user can listen to music or the like through the speaker 106.

The positioning module 107 is connected to the control module 104, and is configured to determine the type of the geographic location where the car radio is located (hereinafter referred to as the geographic location of the car radio), and output the type of the geographic location to the control module 104.

The geographic location in the embodiment of the present application may be a point location or an area, which is not limited in the present application. The point location can be seen as a special case of a zone. The types of the geographic positions can comprise urban roads, tunnels, underground garages, valleys, deserts, cliffs and other types.

The positioning module 107 may be implemented using an existing positioning module. For example, in one implementation, the location module 107 may be a Global Positioning System (GPS) that may send the type of geographic location of the current vehicle radio to the control module. For another example, in another implementation, the positioning module 107 may be a vehicle to evolution (V2X) module. The "X" in "V2X" may be any possible person or thing such as an infrastructure, a vehicle, a cloud server, or a person. The V2X module may communicate with these infrastructures, vehicles, cloud servers, etc., to determine the type of geographic location of the vehicle radio. For yet another example, in another implementation, the location module 107 may be a bluetooth communication module. The Bluetooth communication module on the vehicle communicates with the base station so as to determine the type of the geographic position where the Bluetooth communication module is located, and the type of the geographic position of the vehicle-mounted radio is used as the type of the geographic position of the vehicle-mounted radio. The control module 104 interfaces with the location module 107 to obtain the type of geographic location of the car radio.

It should be noted that the type of the geographic location of the vehicle-mounted radio in the embodiment of the present application may be obtained by one positioning module, or may be obtained by multiple positioning modules. At different times, the type of the geographic location may be determined by the same positioning module, or may be determined by different positioning modules, which is not limited in this application. For example, the type of geographic location of the vehicle radio may be determined by GPS when the vehicle is traveling on an urban road; the type of geographic location of the car radio may be determined by the V2X module as the vehicle travels to an underground garage.

The location module 107 may also be used to determine the geographic location information of the car radio, which is output to the control module 104.

The geographic location information in the embodiment of the present application may include coordinates of a geographic location, and may also include a name of the geographic location. For example, the current geographic position of the vehicle-mounted radio is a parking space in a Shenzhen Huaqiang plaza underground parking lot A101, and then the acquired geographic position information of the vehicle-mounted radio may include: the name "Shenzhen Huaqiang square underground parking lot", coordinates (116.386, 39.873).

The manner in which the positioning module 107 determines the geographic location information of the car radio is similar to the manner in which the type of the geographic location of the car radio is determined, and is not described herein again.

The input/output module 108 is connected to the control module 104, and is configured to receive an instruction input by a user, transmit the instruction to the control module 104, and display information transmitted by the control module 104 to the user. In practical applications, the input/output module 108 may be implemented by a device, for example, a touch screen may implement functions of receiving instructions and displaying information. The input/output module 108 may also include a plurality of devices, for example, a key to implement the function of receiving instructions, and a display to implement the function of displaying information.

The power supply module 109 is connected to the control module 104 and configured to supply power to the control module 104, the signal receiving module 102, the signal strength detecting module 103, the audio processing module 105, the speaker 106, the positioning module 107, the input/output module 108, and the like.

The process of the control module 104 performing the control method will be described in detail below. Referring to fig. 2, fig. 2 is a flowchart illustrating a first implementation manner of the control method executed by the control module 104. The control method may include the following steps of S201 to S203.

S201: the control module acquires the signal intensity of the vehicle-mounted radio.

As described above, the signal strength of the car radio is a parameter representing the signal strength of the sound source received by the antenna 101. After the signal strength detection module 103 detects the signal strength of the car radio, the signal strength may be directly output to the control module 104, or may be output to the signal receiving module 102, and the signal receiving module 102 transmits the signal strength to the control module 104, so that the control module 104 obtains the signal strength of the car radio.

S202: the control module obtains the type of the geographic location of the car radio.

As described above, the control module 104 is connected to the positioning module 107 so as to acquire the type of the geographic location of the car radio determined by the positioning module 107.

S203: and if the signal strength is lower than a preset first threshold value and the type of the geographic position belongs to a preset weak signal type, executing noise reduction processing by the control module.

The first threshold may be a preset threshold, and when the signal strength of the car radio is lower than the preset threshold, the car radio may generate noise due to weak signal strength. For example, the first threshold value may be set to-3 dB.

As previously mentioned, the types of geographic locations may include urban roads, tunnels, underground garages, and the like. The weak signal type is part of the type of geographical location. Generally, when the car radio is located in a geographical location where a large obstruction exists (such as a tunnel, an underground garage, etc.) or other remote geographical locations (such as a desert, a cliff, a valley, etc.), the radio antenna receives a small sound source signal, and a large noise signal easily causes noise to be generated by the radio. Therefore, the type of the geographical location, which is likely to cause noise generation, can be set as the weak signal type.

At some point, if the signal strength of the car radio is below a first threshold and the type of geographic location of the car radio is of a weak signal type, then control module 104 may perform noise reduction processing. The noise reduction processing may specifically be an instruction to turn off the car radio, or an instruction to reduce the volume of the speaker 106 of the car radio to a preset volume, for example, 5% or 0% of the maximum volume (i.e., mute). In addition, the noise reduction processing may be an instruction to play an audio file in a local storage medium such as an in-vehicle CD, a usb disk, or the like, so that the speaker 106 plays sound in the local storage medium.

The steps S201 to S203 describe a process of determining whether or not the noise reduction processing needs to be executed after the signal strength and the type of the geographic position of the car radio are acquired at a certain time. In practice, this process may be repeated continuously to continually adjust for real-time conditions of the type of geographic location and signal strength of the vehicle radio.

With the above control method, when the car radio is in a position of a weak signal type that may generate noise, the control module may perform the noise reduction process upon detecting that the signal strength is below the first threshold value. As the signal strength of the vehicle-mounted radio does not need to be judged whether to be continuously below the threshold value or not like the prior art, the problem that the noise reduction processing cannot be automatically executed under the condition that the signal strength fluctuates up and down on the threshold value is solved. As mentioned above, for different car radios, in the same weak signal area, some car radios can play normally, and some car radios will generate noise. When the same vehicle-mounted radio is in the same weak signal area at different time points, the same vehicle-mounted radio can be normally played sometimes, and noise is generated sometimes. Compared with the method for separately judging whether the vehicle-mounted radio is in the weak signal area to determine whether to execute the noise reduction processing, the control module of the vehicle-mounted radio in the embodiment of the application can avoid the problem that the noise reduction processing is wrongly executed under the condition that the vehicle-mounted radio is in the weak signal area and can be normally played. Therefore, the vehicle-mounted radio in the embodiment of the application can reduce the situation that the noise reduction processing should be executed but not executed, and can also reduce the situation that the noise reduction processing should not be executed but executed, thereby improving the accuracy of automatically executing the noise reduction processing on the whole and improving the user experience.

When the car radio is in a particular location, the control module 104 performs noise reduction processing due to the satisfaction of the two aforementioned conditions regarding the type of geographic location and signal strength. If such a situation occurs multiple times over a certain period of time, or such a situation has occurred multiple times in succession, it is an indication that the probability of noise generation is very high when the car radio is in that particular location. To this end, the control module 104 may classify such geographic location information into a first type of information. Thus, when detecting that the geographic location of the car radio belongs to the first type of information, the control module 104 can directly perform noise reduction processing without acquiring and judging the signal strength of the car radio. Through the mode, the vehicle-mounted radio has the functions of statistics and self-learning, and the user experience is favorably improved.

It should be noted that the division of the first type of information, and the subsequent second type of information and third type of information is only one way to distinguish the geographical location information according to the user requirement, and is not necessarily linked to the aforementioned type of geographical location, etc. The first type of information, the second type of information and the third type of information can be understood as three sets, and each set can comprise one or more pieces of geographical location information which are divided according to user requirements. For a certain geographic location information, it may belong to only a certain type of information, or may belong to several types of information at the same time, which is not limited in the present application.

The first type information, the second type information and the third type information may be implemented in a list manner, or may be implemented in other manners, which is not limited in this application. The following specifically describes a scheme of performing noise reduction processing using the first type information, the second type information, and the third type information, respectively, by taking the first list, the second list, and the third list as examples.

Based on this, please refer to fig. 2, the control method may further include the following steps S204 and S205.

S204: and the control module acquires the geographical position information of the vehicle-mounted radio.

As mentioned above, the geographic location information of the car radio may include the coordinates of the geographic location, and may also include the name of the geographic location, etc. The control module 104 is connected with the positioning module 107 so as to acquire the geographical position information of the car radio determined by the positioning module 107.

S205: if the geographical location information is contained in the first list, the control module performs noise reduction processing.

When the car radio is in a certain specific position, the cumulative number of times of performing the noise reduction processing by the control module 104 exceeds a preset first number, or when the car radio is in a certain specific position, the consecutive number of times of performing the noise reduction processing by the control module 104 exceeds a preset second number, such specific position is referred to as a first geographical position in the embodiment of the present application, and information describing the first geographical position is referred to as first location information. The first location information may include a name, coordinates, etc. of the first geographic location. A first list is constructed and such one or more first location information is stored in the first list.

Whenever the control module 104 judges that the car radio should be instructed to perform the noise reduction processing according to the aforementioned step of S203, the control module 104 records the geographical location information of the car radio at that time. In this way, the control module 104 may count the cumulative number of times that noise reduction processing was performed when the car radio was in the geographic location for a certain period of time. If the accumulated number of times exceeds a preset first number of times, the geographical location is determined as a first geographical location, and first location information describing the first geographical location is added to the first list. If the car radio executes the noise reduction processing each time it is located at the geographic location, the control module 104 may further determine whether the number of times the noise reduction processing is continuously executed in this way exceeds a preset second number of times. If the second number of times is exceeded, the control module 104 determines the geographic location as a first geographic location and adds first location information describing the first geographic location to the first list.

It should be noted that, the two methods for determining the first geographic position may be used in combination or separately, and the present application is not limited thereto.

The geographical location described by the first location information may be a point location or an area. The current geographical location information of the car radio may also describe a point location or an area. When judging whether the acquired current geographical location information is contained in the first list, if the current geographical location information is the same as one of the first location information in the first list, or if the area indicated by the current geographical location information is contained in the area indicated by one of the first location information in the first list, the current geographical location information is considered to be contained in the first list. The principle according to which the second list and the third list are subsequently used for judgment is similar to that, and will not be described in detail later.

Compared with the method for judging whether to execute the noise reduction processing according to the signal intensity or the weak signal area, the control method is adopted to enable the vehicle-mounted radio to automatically execute the noise reduction processing, and the accuracy rate is still higher than that of the method for judging whether the signal intensity or the weak signal area is in the signal intensity or the weak signal area. Meanwhile, compared with the method of the steps from S201 to S203, the step of S205 is added, the speed of automatically executing the noise reduction processing is also improved, and the user experience is improved.

In geographic locations where some users are more concerned, the user may wish the car radio to perform noise reduction processing. But the type of these geographical locations may not belong to the preset weak signal type. For example, each time a user passes a certain section of road, a high-voltage line near the road interferes with a signal, so that a car radio generates noise, but the type of the geographical position of the section of road does not belong to the weak signal type of the tunnel, the underground parking lot and the like. In this case, with the foregoing control method, the car radio cannot automatically perform the noise reduction processing while on the road segment. For this reason, in the embodiment of the present application, such information of the geographical location of interest to the user may be manually classified into the second type of information by the user. In this way, the control module 104 can directly perform the noise reduction processing whenever it is detected that the geographic location of the car radio belongs to the second type of information, without acquiring and judging the signal strength of the car radio.

As will be described below with reference to fig. 2, the control method may further include the following steps S206 to S208:

s206: the control module indicates and displays the signal intensity of the vehicle-mounted radio and the geographical position information of the vehicle-mounted radio;

s207: the control module adds the geographical position information to a second list according to the first operation instruction;

s208: if the geographic location information is included in the second list, the control module performs noise reduction processing on the car radio.

The control module 104 is connected to an input/output module 108 (e.g., a touch screen display, etc.) for instructing the input/output module 108 to display signal strength and geographical location information. When the signal strength is displayed, the input/output module 108 may directly display the value of the signal strength, or may display an icon or the like that can represent the signal strength; when displaying the geographic location information, the input/output module 108 may directly display the content of the geographic location information, or may display a schematic diagram or the like that can embody the geographic location information, which is not limited in this application.

After seeing the signal strength and the geographical position information displayed by the input and output module 108, the user inputs a first operation instruction through touch operation, voice and the like. The first operation instruction is used to instruct the control module 104 to add the geographical location information to the second list.

For example, please refer to fig. 3 to 4, fig. 3 is a schematic view of a user interface of an input/output module when displaying signal strength and geographical location information in an implementation manner of the embodiment of the present application; fig. 4 is a schematic view of a user interface when a user interacts with an input/output module in an implementation manner of the embodiment of the present application.

In the user interface shown in fig. 3, an icon showing the signal intensity and the name "XX building parking lot" of the geographical position are displayed. The user clicks on the area on the touch display screen displaying "XX building parking lot", pops up a dialog window, prompting the user whether to add the geographical location information to the second list, as shown in fig. 4. If the user clicks a confirmation button in the dialog window, the first operation instruction is input.

The input output module 108, after receiving the first operation instruction, passes it to the control module 104. The control module 104 adds the user-indicated geographic location information to the second list. For the sake of distinction, the geographical location information in the second list is referred to as second location information in the embodiments of the present application. The control module 104 may determine whether the geographic location information of the current car radio is included in the second list. And if the signal strength of the vehicle radio is contained, the noise reduction processing is directly executed without acquiring and judging the signal strength of the vehicle radio. Thus, each time the car radio is in the geographic location, the control module 104 will directly instruct the car radio to perform noise reduction processing.

It should be noted that the second list and the first list may be two different lists, or may be the same list. The control module 104 may put the first location information added by itself according to the number of times of performing the noise reduction processing and the second location information manually added by the user in the same list. The control module 104 may perform the noise reduction process directly as long as the geographic location where the car radio is currently located is included in this list.

The input and output module 108 does not need to display the signal strength and the geographical location information of the car radio anytime and anywhere, and displaying too much unnecessary information may cause interference to users. For this reason, the control module 104 may determine in advance whether display to the user is necessary, so as to reduce interference to the user and improve user experience.

In an implementation manner, the foregoing step of S206 may include: when the signal strength is lower than the preset second threshold, the control module 104 instructs the input/output module 108 to display the acquired current geographical location information.

In another implementation, the foregoing step of S206 may include: when the signal intensity is lower than a preset second threshold value, the control module 104 records the geographical position information of the vehicle-mounted radio; if the cumulative number of times that the same geographical location information is recorded exceeds a preset third number of times, the control module 104 instructs the input-output module 108 to display the signal strength and the geographical location information. Wherein the second threshold value is less than or equal to the first threshold value.

It should be noted that the type of the geographic location indicated by the geographic location information may or may not be a preset weak signal type. When it belongs to the preset weak signal type, the car radio may automatically perform the noise reduction process at this time according to the aforementioned step of S203. This and the corresponding signal strength are displayed to the user, who decides whether to add to the second list manually. If added to the second list, the control module 104 may perform noise reduction processing based directly on the second list the next time the car radio is at the geographic location, without having to re-acquire and determine whether the signal strength satisfies the condition. When the geographical location information does not belong to the weak signal type, the car radio has not automatically performed the noise reduction processing at this time because the condition of S203 is not satisfied. This and the corresponding signal strength are displayed to the user, who decides whether to add to the second list manually. If added to the second list, the control module 104 may perform noise reduction processing based directly on the second list if the car radio is currently still in the geographic location.

As previously mentioned, in some scenarios, although the signal strength of the car radio is below a preset threshold, the type of geographic location where the car radio is located may not be of a preset weak signal type. In such a case, the car radio adopting the aforementioned control method cannot automatically perform the noise reduction process. For this reason, in the embodiment of the present application, a third type of information may be set, and the geographic location information may be automatically classified into the third type of information by the control module with respect to the geographic location and the past signal strength. When the fact that the geographical position where the vehicle-mounted radio is located belongs to the third type of information is detected, noise reduction processing can be directly executed without acquiring and judging the signal intensity of the vehicle-mounted radio.

Based on this, please refer to fig. 5, fig. 5 is a flowchart illustrating a second implementation manner of the control method executed by the control module 104. Optionally, the control method described above may further include the following steps S209 to S211:

s209: when the signal intensity is lower than a preset third threshold value, a control module records the geographical position information of the vehicle-mounted radio; wherein the third threshold is less than or equal to the first threshold;

s210: if the same geographical position information is cumulatively recorded for more than a preset fourth time, the control module adds the geographical position information to a third list;

s211: and if the geographical position information of the vehicle-mounted radio is contained in the third list, executing noise reduction processing by a control module.

Similarly to the foregoing, the type of the geographical location information may or may not be a preset weak signal type. When it is of the preset weak signal type, the execution condition of the aforementioned step S203 is also satisfied whenever the execution condition of the step S209 is satisfied. The car radio can now automatically perform the noise reduction process. Whether the geographic location information is added to the first list or the third list last, the control module 104 may perform noise reduction processing based directly on the first list or the third list without further acquiring and determining whether the signal strength satisfies the condition when the car radio is thereafter at the geographic location. When the geographical location information does not belong to the weak signal type, the control module 104 has not automatically performed the noise reduction processing at this time because the condition of S203 is not satisfied. The control module 104 will not add the geographical location information to the third list until the geographical location information is cumulatively recorded more than a preset fourth number of times due to the signal strength being lower than the third threshold value a number of times. Thereafter, when the car radio is in the geographic location, the control module 104 may perform noise reduction processing based directly on the third list.

It should be noted that the third list may be a different list from the first list and the second list, or may be the same list. That is, the first position information that the control module 104 adds by itself according to the number of times the noise reduction processing is performed, the second position information that the user manually adds, and the third position information that the control module 104 adds by itself according to the number of times the signal difference are performed may be placed in the same list. Thus, the control module 104 can directly perform noise reduction processing as long as the geographic location where the car radio is currently located is included in the list.

In some scenarios, the vehicle is often active in a certain area for a period of time, so that some geographical location information in that area is added to the first, second or third list as a result of the aforementioned conditions being met. And for a long time thereafter the vehicle is no longer active in this area. At this time, the geographic location information in the first list, the second list, or the third list does not trigger the car radio to perform the noise reduction process for a long time.

For example, the user 2018 is resident in Shenzhen, and the geographic position information of some Shenzhen is added to the first list, the second list or the third list. And by 2019, the traditional Chinese medicine always stays in the root due to work movement. At this time, the vehicle 2019 of the user is active in Chenzhen for a long time. Therefore, the geographic location information of these Shenzhen in the first list, the second list or the third list does not trigger the car radio to perform the noise reduction processing. At this time, the geographic location information of these Shenzhen can be deleted, so as to save memory space and improve the speed of judgment based on the first list, the second list or the third list.

Based on this, the control method described above may further include any one or more steps of S212 to S214 below.

S212: if any of the first location information in the first list is not used to trigger the step of performing noise reduction processing within a preset first time period, the control module deletes the first location information from the first list.

S213: if any second location information in the second list is not used for triggering the step of performing noise reduction processing within a preset second time period, the control module deletes the second location information from the second list.

S214: if any of the third location information in the third list is not used to trigger the step of performing noise reduction processing within a preset third time period, the control module deletes the third location information from the third list.

The first time period, the second time period, and the third time period may be the same or different, and the present application is not limited thereto.

In other scenarios, a certain geographic location will always cause the car radio to generate noise due to weak signals for a period of time. Is added to the first list, the second list or the third list manually or automatically due to the aforementioned conditions for adding to the first list, the second list or the third list being fulfilled while in the geographical location. However, since the signal of the geographical position is enhanced later due to the change of the external environment, such as the removal of the shelter, the removal of the signal interference object and the like, the noise of the car radio can not be generated any more. In this case, although the car radio can be normally played when it is at the geographic location, the control module 104 may still perform the noise reduction process because the information of the geographic location has been added to the first list, the second list, or the third list.

For this reason, any of the control methods described above may further include the following step of S215 or S216.

S215: when the vehicle-mounted radio is located at the first geographical position, the second geographical position or the third geographical position, and the corresponding signal strength is higher than a preset fifth threshold value, the control module deletes the corresponding first position information in the first list, the corresponding second position information in the second list or the corresponding third position information in the third list.

S216: when the vehicle-mounted radio is located at a first geographical position, a second geographical position or a third geographical position, if the cumulative times of the corresponding signal strength higher than a preset sixth threshold value exceed a sixth time, or the continuous times of the corresponding signal strength higher than a preset seventh threshold value exceed a seventh time, the control module deletes the corresponding first position information in the first list, the corresponding second position information in the second list or the corresponding third position information in the third list.

By the method, when the activity area of the vehicle-mounted radio changes or the external environment changes, the vehicle-mounted radio can change adaptively, so that whether noise reduction processing needs to be automatically executed or not is judged more accurately, and user experience is improved.

Optionally, referring to fig. 5, any of the control methods may further include the following step S217.

S217: and if the duration of the signal intensity lower than the preset fourth threshold value reaches the preset fourth time period, the control module executes noise reduction processing. Wherein the fourth threshold value is less than or equal to the first threshold value.

Thus, the control module 104 may also directly perform noise reduction when the signal strength continues to be poor. In particular, this step may be combined with the step of S205, in which the number of times the control module 104 performs the noise reduction processing is also recorded, so as to facilitate more quickly determining whether certain geographical location information needs to be added to the first list.

It should be noted that, when any of the foregoing conditions for performing the noise reduction processing is not satisfied, the control module 104 may instruct to turn on the car radio again, or instruct to increase the volume of the speaker 106 of the car radio to the volume before the noise reduction processing, or instruct to switch from playing of the audio file in the local storage medium to playing of the car radio.

Embodiments of the present application also provide a vehicle, which may include any of the aforementioned car radios.

The embodiment of the application also provides a chip system. Referring to fig. 6, fig. 6 is a schematic structural diagram of an implementation manner of a chip system according to an embodiment of the present disclosure. The chip system includes: at least one processor 301 and an interface 302, wherein the interface 302 is configured to receive the code instructions and transmit the code instructions to the at least one processor 301, and the at least one processor 301 executes the code instructions to perform any one of the control methods performed by the aforementioned control module.

The processor 301 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof. A general purpose processor may be a microprocessor or any conventional processor or the like.

It should be understood that the above chip system may include one chip, and may also include a chip module composed of a plurality of chips, which is not limited in this application.

The present embodiments also provide a computer-readable storage medium. The computer readable storage medium is used for storing a computer program or instructions, which when run on an electronic device, causes the electronic device to perform part or all of the steps of any one of the control methods performed by the aforementioned control module.

The readable storage medium may be a magnetic disk, an optical disk, a DVD, a USB, a Read Only Memory (ROM), a Random Access Memory (RAM), etc., and the specific form of the storage medium is not limited in this application.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions described in accordance with the present application are generated, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

It should be understood that, in the various embodiments of the present application, the execution sequence of each step should be determined by its function and inherent logic, and the size of the sequence number of each step does not mean the execution sequence, and does not limit the implementation process of the embodiments. For example, the aforementioned step S201 may be executed before the step S202, may be executed after the step S201, or may be executed simultaneously with the step S201. For example, the step S204 may be executed before the step S201 or S202, or may be executed after the step S201 or S202, but it is necessary to execute the step S205 before.

The term "plurality" in this specification means two or more unless otherwise specified. In the embodiments of the present application, the words "first", "second", and the like are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

It should be understood that like parts are referred to each other in this specification for the same or similar parts between the various embodiments. In particular, for the embodiments of the vehicle, the chip system and the computer readable storage medium, since they are basically similar to the car radio and the control method embodiment, the description is simple, and the relevant points can be referred to the description in the method embodiment. The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention.

Claims

1. A car radio, comprising:

the signal intensity detection module is used for detecting the signal intensity of the vehicle-mounted radio;

the positioning module is used for determining the type of the geographic position of the vehicle-mounted radio and the geographic position information of the vehicle-mounted radio;

the control module is used for acquiring the signal intensity of the vehicle-mounted radio; acquiring the type of the geographic position of the vehicle-mounted radio and the geographic position information of the vehicle-mounted radio; determining that the signal strength is lower than a preset first threshold value, the type of the geographic position belongs to a preset weak signal type, determining that the geographic position information belongs to first type information, and executing noise reduction processing; wherein the weak signal type is a type of geographical location that would cause the car radio to generate noise, and the first type of information includes at least one first location information describing a first geographical location; when the vehicle-mounted radio is located at the first geographic position, the cumulative times of the control module for executing the noise reduction processing exceed a preset first time, or when the vehicle-mounted radio is located at the first geographic position, the continuous times of the control module for executing the noise reduction processing exceed a preset second time.

2. The car radio of claim 1, further comprising:

the input and output module is used for displaying the signal intensity and the geographical position information; acquiring a first operation instruction; the first operation instruction is an operation instruction which is input by a user based on the signal intensity and is used for instructing the control module to divide the geographical position information into a second type of information;

the control module is also used for dividing the geographical position information into second type information according to the first operation instruction; and determining that the geographic position information belongs to the second type of information, and executing noise reduction processing.

3. The car radio according to claim 2,

the control module is further used for determining that the signal intensity is lower than a preset second threshold value and recording the geographical position information; determining that the recorded accumulated times of the same geographical position information exceed a preset third time, and indicating the input/output module to display the signal intensity and the geographical position information; wherein the second threshold value is less than or equal to the first threshold value.

4. The car radio according to claim 1,

the control module is also used for determining that the signal intensity is lower than a preset third threshold value and recording the geographical position information of the vehicle-mounted radio; determining that the accumulated record of the same geographical position information exceeds a preset fourth time, and dividing the geographical position information into third type information; determining that the geographic position information of the vehicle-mounted radio belongs to the third type of information, and executing noise reduction processing; wherein the third threshold value is less than or equal to the first threshold value.

5. The car radio according to any of claims 2 to 4,

the control module is further used for deleting the first position information from the first type information when any first position information in the first type information is not used for triggering the step of executing the noise reduction processing within a preset first time period; alternatively, the first and second electrodes may be,

the control module is further configured to delete any one of second location information in second class information from the second class information when the second location information is not used to trigger the step of performing noise reduction processing within a preset second time period; alternatively, the first and second electrodes may be,

the control module is further configured to delete any one of third location information in third type information from the third type information when the third location information is not used to trigger the step of performing noise reduction processing within a preset third time period.

6. The car radio according to any of claims 1 to 4,

the control module is further configured to perform noise reduction processing when the duration of the signal strength that is lower than a preset fourth threshold reaches a preset fourth time period, where the fourth threshold is smaller than or equal to the first threshold.

7. The car radio according to any of claims 1 to 4,

the positioning module includes: a global positioning system GPS module, a vehicle wireless communication module or a Bluetooth communication module.

8. The car radio according to any of claims 1 to 4,

the control module is also used for indicating to close the vehicle-mounted radio; or indicating to reduce the volume of the vehicle-mounted radio to a preset volume; or, instructing to play the audio file in the local storage medium.

9. A vehicle, characterized in that it comprises a car radio according to any of claims 1-8.

10. A control method of a car radio, characterized in that a control module is provided in the car radio, the method comprising:

the control module acquires the signal intensity of the vehicle-mounted radio;

the control module acquires the type of the geographic position of the vehicle-mounted radio and the geographic position information of the vehicle-mounted radio;

if the signal strength is lower than a preset first threshold value, the type of the geographic position belongs to a preset weak signal type, and the geographic position information belongs to first type information, the control module executes noise reduction processing; wherein the weak signal type is a type of geographical location that would cause the car radio to generate noise, and the first type of information includes at least one first location information describing a first geographical location; when the vehicle-mounted radio is located at the first geographic position, the cumulative times of the control module for executing the noise reduction processing exceed a preset first time, or when the vehicle-mounted radio is located at the first geographic position, the continuous times of the control module for executing the noise reduction processing exceed a preset second time.

11. The method of claim 10, further comprising:

the control module indicates and displays the signal intensity of the vehicle-mounted radio and the geographical position information of the vehicle-mounted radio;

the control module divides the geographical position information into second type information according to a first operation instruction; the first operation instruction is an operation instruction which is input by a user based on the signal strength and is used for instructing the control module to divide the geographical position information into the second type of information;

and if the geographic position information belongs to the second type of information, the control module executes noise reduction processing.

12. The method of claim 11, wherein the step of the control module instructing the display of the signal strength of the car radio and the geographical location information of the car radio comprises:

when the signal intensity is lower than a preset second threshold value, the control module records the geographical position information, wherein the second threshold value is smaller than or equal to the first threshold value;

and if the recorded accumulated times of the same geographical position information exceed a preset third time, the control module indicates to display the signal strength and the geographical position information.

13. The method of claim 10, further comprising:

when the signal intensity is lower than a preset third threshold value, the control module records the geographical position information of the vehicle-mounted radio; wherein the third threshold value is less than or equal to the first threshold value;

if the same geographical position information is cumulatively recorded for more than a preset fourth time, the control module divides the geographical position information into third type information;

and if the geographical position information of the vehicle-mounted radio belongs to the third type of information, the control module executes noise reduction processing.

14. The method according to any one of claims 10-13, further comprising:

if any first position information in the first type information is not used for triggering the step of executing the noise reduction processing within a preset first time period, the control module deletes the first position information from the first type information; alternatively, the first and second electrodes may be,

if any second position information in second information is not used for triggering the step of executing the noise reduction processing within a preset second time period, the control module deletes the second position information from the second information; alternatively, the first and second electrodes may be,

and if any one of the third position information in the third type of information is not used for triggering the step of executing the noise reduction processing within a preset third time period, the control module deletes the third position information from the third type of information.

15. The method according to any one of claims 10-13, further comprising:

and if the duration of the signal strength lower than a preset fourth threshold reaches a preset fourth time period, executing noise reduction processing by the control module, wherein the fourth threshold is smaller than or equal to the first threshold.

16. The method according to any one of claims 10-13, wherein the step of the control module obtaining geographical location information of the vehicle radio comprises: and acquiring the geographical position information of the vehicle-mounted radio through a global positioning system, a vehicle wireless communication technology or a Bluetooth communication technology.

17. The method according to any one of claims 10-13, wherein the step of performing noise reduction processing by the control module comprises:

the control module instructs to turn off the vehicle-mounted radio; alternatively, the first and second electrodes may be,

the control module indicates that the volume of the vehicle-mounted radio is reduced to a preset volume; alternatively, the first and second electrodes may be,

and the control module instructs to play the audio file in the local storage medium.

18. A chip system comprising at least one processor and an interface; the interface is used for receiving code instructions and transmitting the at least one processor; the at least one processor executes the code instructions to perform the method of any of claims 10-17.

19. A computer-readable storage medium storing a computer program or instructions for causing an electronic device to perform the method of any one of claims 10-17 when the computer program or instructions are run on the electronic device.