CN112003666A - Vehicle-mounted radio control method, device, equipment and storage medium - Google Patents
Vehicle-mounted radio control method, device, equipment and storage medium Download PDFInfo
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- CN112003666A CN112003666A CN202010851029.6A CN202010851029A CN112003666A CN 112003666 A CN112003666 A CN 112003666A CN 202010851029 A CN202010851029 A CN 202010851029A CN 112003666 A CN112003666 A CN 112003666A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
- H04H20/62—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast for transportation systems, e.g. in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/29—Arrangements for monitoring broadcast services or broadcast-related services
- H04H60/32—Arrangements for monitoring conditions of receiving stations, e.g. malfunction or breakdown of receiving stations
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Abstract
The embodiment of the invention discloses a method, a device, equipment and a storage medium for controlling a vehicle-mounted radio. The method comprises the following steps: acquiring signal characteristics of a radio signal received by a vehicle-mounted radio; collecting an audio signal played by the vehicle-mounted radio based on the radio signal; performing noise detection based on signal characteristics of the radio signal and signal characteristics of the audio signal; and controlling a signal source of the vehicle-mounted radio according to the noise detection result. The embodiment of the invention combines the front-end signal judgment and the back-end feedback judgment to avoid the conditions of delay and misjudgment, and improves the precision and the real-time performance of noise detection.
Description
Technical Field
The embodiment of the invention relates to the technical field of intelligent driving, in particular to a method, a device, equipment and a storage medium for controlling a vehicle-mounted radio.
Background
When a vehicle enters a place such as a basement, a parking building, a tunnel and the like, a radio station signal received by the vehicle-mounted radio becomes very weak, so that signal noise is serious (nourishing sound), auditory garbage is caused, and the pleasant listening environment is broken.
In the prior art, the noise initiation source is generally optimized, that is, the sensitivity and strength of radio reception are further improved through radio related circuit optimization, so that the signal quality is improved. However, there are dozens of sources of noise and they are not easy to screen; even if an initiating source is found, optimization is difficult due to technical limitations.
Disclosure of Invention
The invention provides a method, a device, equipment and a storage medium for controlling a vehicle-mounted radio so as to realize automatic control of a signal source of the vehicle-mounted radio.
In a first aspect, an embodiment of the present invention provides a method for controlling a car radio, including:
acquiring signal characteristics of a radio signal received by a vehicle-mounted radio;
collecting an audio signal played by the vehicle-mounted radio based on the radio signal;
performing noise detection based on signal characteristics of the radio signal and signal characteristics of the audio signal;
and controlling a signal source of the vehicle-mounted radio according to the noise detection result.
In a second aspect, an embodiment of the present invention further provides a car radio control apparatus, including:
the acquisition module is used for acquiring the signal characteristics of the radio signals received by the vehicle-mounted radio;
the acquisition module is used for acquiring audio signals played by the vehicle-mounted radio based on the radio signals;
the detection module is used for carrying out noise detection based on the signal characteristics of the radio signal and the signal characteristics of the audio signal;
and the control module is used for controlling the signal source of the vehicle-mounted radio according to the noise detection result.
In a third aspect, an embodiment of the present invention further provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the computer program to implement a car radio control method according to any one of the embodiments of the present invention.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a car radio control method according to any one of the embodiments of the present invention.
According to the embodiment of the invention, noise detection is carried out based on the signal characteristics of the radio signal and the signal characteristics of the audio signal, so that the situations of delay and misjudgment are avoided by combining a front-end signal judgment mode and a rear-end feedback judgment mode, and the precision and the real-time performance of noise detection are improved; the signal source of the vehicle-mounted radio is controlled according to the noise detection result, the noise source is not distinguished, but the signal source is automatically controlled through noise detection under the condition that noise possibly occurs, so that the operation of a driver is reduced, and higher driving experience is provided for the driver and passengers.
Drawings
FIG. 1 is a flow chart of a method for controlling a car radio according to an embodiment of the present invention;
FIG. 2a is a schematic flow chart illustrating another method for controlling a car radio according to an embodiment of the present invention;
FIG. 2b is a schematic structural diagram of an in-vehicle entertainment host provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a computer device provided in a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, subprograms, and the like.
Fig. 1 is a flowchart of a car radio control method according to an embodiment of the present invention, where the embodiment is applicable to a case of controlling a car radio, and the method may be executed by a car radio control apparatus, which may be implemented in software and/or hardware, and may be integrated in a computer device. The car radio may be integrated in the computer device or separate from and connected to the computer device.
The method specifically comprises the following steps:
and S110, acquiring the signal characteristics of the radio signals received by the vehicle-mounted radio.
The vehicle-mounted radio is a radio arranged on a vehicle, the quality of radio signals received by the vehicle-mounted radio is uneven due to the moving property of the vehicle, and when radio signals with good quality (such as stronger signals) are received, audio signals played by the vehicle-mounted radio based on the radio signals are clear and almost have no noise; when a radio signal of poor quality (e.g., a weak signal) is received, the audio signal played by the car radio based on the radio signal is scrambled, and the radio signal is considered to include a noise signal.
The radio signal is a signal received by the car radio from an antenna and may be referred to as a front-end signal. Whether the radio signal includes the noise signal or not causes the waveform of the radio signal to be different, thereby enabling the signal characteristic of the radio signal to reflect whether the radio signal includes the noise signal or not.
And S120, collecting audio signals played by the vehicle-mounted radio based on the radio signals.
After receiving the radio signal from the antenna, the vehicle-mounted radio performs filtering, amplification and other processing on the radio signal and then drives the loudspeaker to play. For convenience of description and distinction, the played-out signal is referred to as an audio signal. Optionally, the audio signal played by the car radio is collected by at least one microphone. The audio signal is a captured played signal relative to the front-end signal, and may be referred to as a back-end feedback signal. Whether the audio signal includes the noise signal or not results in the signal characteristics of the audio signal being different, thereby enabling the signal characteristics of the audio signal to reflect whether the audio signal includes the noise signal or not.
And S130, noise detection is carried out based on the signal characteristics of the radio signal and the signal characteristics of the audio signal.
Although the signal characteristics of the radio signal can reflect whether the radio signal includes a noise signal, the accuracy is limited, and the signal characteristics of the radio signal alone can be used for detection, so that a misjudgment situation can occur. The audio signal is a signal that is broadcast after a series of processing is performed on the radio signal, and the accuracy with which the signal characteristics of the radio signal can reflect whether the radio signal includes a noise signal is also limited, so that a situation that a delay and an erroneous judgment occur when the detection is performed by the signal characteristics of the audio signal alone may occur.
In order to solve the above problems, the present embodiment simultaneously performs noise detection based on the signal characteristics of the radio signal and the signal characteristics of the audio signal, combines the accuracy of the signal characteristics of the radio signal and the signal characteristics of the audio signal, and the timeliness of detecting the signal characteristics of the radio signal, and combines two ways of front-end signal judgment and back-end feedback judgment to avoid the occurrence of delay and misjudgment.
In most cases, the radio signal includes noise, only a difference in how much noise is present. In the field of intelligent driving, the listener of the vehicle radio is the driver, and if the noise included in the radio signal is within the hearing acceptance range of the driver, that is, the driver cannot hear obvious noise, the noise detection result can be regarded as undetected noise. Conversely, if the radio signal includes noise outside the hearing-acceptable range of the driver, i.e., the driver can hear a noticeable noise, the noise detection result is considered as detected noise.
Based on the above analysis, optionally, if the signal characteristics of the radio signal and the signal characteristics of the audio signal indicate that the signal-to-noise ratio exceeds a set threshold, no noise is detected, and if the set threshold is not exceeded, noise is detected. Alternatively, the set threshold may be 60%, and may be autonomously set depending on the situation.
And S140, controlling a signal source of the vehicle-mounted radio according to the noise detection result.
The signal source of the car radio is the signal source of the radio signal. Optionally, if the noise detection result is that noise is detected, the signal source of the car radio may be turned off or switched, for example, by controlling a mute key switch connected to the car radio to turn off, so as to turn off the signal source of the car radio, or the signal source of the car radio may be automatically switched to other audio, such as bluetooth audio, USB (Universal Serial Bus) audio, DVD (Digital Video Disc) audio, and the like.
It should be noted that the manner of controlling the signal source of the car radio according to the noise detection result may be preset by the driver, for example, if the signal source is turned off when the noise is detected, the signal source is turned off when the noise is detected by the computer device, and the car radio is muted. For another example, it is preset to switch the signal source to the bluetooth audio when detecting noise, and then the computer device switches the signal source to the bluetooth audio when detecting noise, so that the car radio plays the bluetooth audio.
In the embodiment, noise detection is performed based on the signal characteristics of the radio signal and the signal characteristics of the audio signal, so that the situations of delay and misjudgment are avoided by combining a front-end signal judgment mode and a rear-end feedback judgment mode, and the accuracy and the real-time performance of noise detection are improved; the signal source of the vehicle-mounted radio is controlled according to the noise detection result, the noise source is not distinguished, but the signal source is automatically controlled through noise detection under the condition that noise possibly occurs, so that the operation of a driver is reduced, and higher-quality driving experience is provided for the driver and passengers.
In the above-described embodiment and the following embodiments, the signal characteristics of the noise signals used for comparison are introduced in order to facilitate noise detection. Optionally, the noise detection is performed based on a signal characteristic of the radio signal and a signal characteristic of the audio signal, and includes: and comparing the signal characteristics of the radio signal and the audio signal with the set noise signal characteristics to obtain a noise detection result.
Wherein the signal characteristic of the noise signal and the signal characteristic of the radio noise signal. Optionally, in the case that the signal source is weak or turned off, the radio noise signal and the played noise signal are collected from the antenna and the speaker, respectively, and the signal characteristics of the radio noise signal and the noise signal are extracted. And comparing the signal characteristics of the radio signal with the signal characteristics of the radio noise signal, and comparing the signal characteristics of the audio signal with the signal characteristics of the noise signal to obtain a noise detection result.
The embodiment can improve the noise detection precision by introducing the set noise signal characteristic to carry out noise detection on the radio signal and the audio signal.
FIG. 2a is a flow chart of another method for controlling a car radio according to an embodiment of the present invention, which further optimizes the noise detection process. Optionally, the computer device is specifically an IVI (In-Vehicle-information In-Vehicle entertainment host), and is based on a service-oriented automotive Electronic/Electrical Architecture (Electrical/Electronic Architecture), and integrates multiple basic services. As shown in fig. 2b, the IVI is integrated with a noise intelligent processing system and a car radio, and the noise intelligent processing system executes the method provided by the invention.
With reference to fig. 2a and 2b, the car radio control method includes the following operations:
s210, acquiring the signal characteristics of the radio signals received by the vehicle-mounted radio.
When radio wave interference occurs in a car radio, there are many variations in the radio signal entering the IVI through the antenna, including: 1) the radio signal strength is weak; 2. the radio carrier frequency tends towards noise frequencies. Therefore, the IVI directly detects the signal characteristics of the radio signal and can be the first input to the intelligent noise processing system in the IVI.
Optionally, the signal characteristic of the radio signal includes at least one of strength, frequency of the radio signal, strength of a mobile communication network signal carried by the radio signal, and quality of service. Wherein, if the radio signal is collected by the antenna, the intensity and frequency of the radio signal are detected by adopting a detection method based on analog signals. With the future increase of digitized signals, radio receivers are increasingly broadcasted based on network digital signals, and the strength of mobile communication network signals (such as 4G or 5G) carried by the radio signals and the service quality of the mobile communication network signals can be detected.
It should be noted that, in addition to being connected to the computer device (such as IVI), the antenna of the car radio may also be connected to other in-car controllers, such as T-BOX (Telematics), in which case, it is necessary to integrate the detection logic of the signal characteristics (such as intensity, frequency) of the radio signal into the T-BOX and send the detected signal characteristics to the computer device (such as IVI) for noise detection.
S220, collecting audio signals played by the vehicle-mounted radio based on the radio signals.
As shown in fig. 2b, when the radio signal has been played through the power amplifier unit and the speaker, the microphone connected to the IVI may collect the audio signal, and then the IVI extracts the signal characteristics of the audio signal, and uses the speech recognition result and the semantic recognition result as the second input of the intelligent processing system for noise in the IVI. The speech recognition result and the semantic recognition result can reflect the high-dimensional characteristics of the audio signal, and both the speech recognition result and the semantic recognition result can be influenced when the audio signal contains a small amount of noise signals. Therefore, the voice recognition result and the semantic recognition result are sensitive to noise, and therefore, the accuracy of noise detection based on the voice recognition result and the voice recognition result is higher.
Optionally, the signal characteristic of the audio signal comprises at least one of a speech recognition result and a semantic recognition result of the audio signal. Specifically, the IVI has voice recognition and semantic recognition functions, performs voice recognition on the audio signal to obtain a voice recognition result, and performs semantic recognition to obtain a semantic recognition result.
Optionally, in some cases, the computer device (e.g. IVI) includes a power amplifier unit, which may directly drive a speaker; in other cases, the computer device (e.g., IVI) does not include a power amplifier unit, and the audio signal needs to be sent to the power amplifier unit, and then the power amplifier unit drives the speaker to sound.
S230, comparing the signal characteristics of the radio signal with the signal characteristics of the radio noise signal to obtain a first comparison result.
The signal characteristics of the radio noise signal include at least one of the strength, the frequency, the strength of the mobile communication network signal carried by the radio noise signal, and the quality of service, as well as the signal characteristics of the radio signal. Specifically, the signal features of the same type are compared, for example, a difference between the signal features of the same type is calculated as a first comparison result.
S240, comparing the signal characteristics of the audio signal with the signal characteristics of the noise signal to obtain a second comparison result.
The signal feature of the noise signal also includes at least one of a speech recognition result and a semantic recognition result, as well as the signal feature of the audio signal. In particular, the same types of signal features are compared. Since the speech recognition result and the semantic recognition result are generally in text form, the similarity of the speech recognition result in text form and the similarity of the semantic recognition result in text form are calculated as the second comparison result.
And S250, integrating the first comparison result and the second comparison result to obtain a noise detection result.
According to the above description, the first comparison result and the second comparison result can be individually subjected to noise detection, for example, when the first comparison result is a difference value of the same type of signal features, if the difference value does not exceed a difference threshold value, such as 5 or 10, it indicates that noise is detected; if the difference exceeds the difference threshold, it indicates that no noise is detected. For another example, when the second comparison result is the similarity of the signal features of the same type, if the similarity does not exceed the similarity threshold, such as 90%, it indicates that noise is detected; if the similarity exceeds the similarity threshold, it indicates that no noise is detected. In this embodiment, the first comparison result and the second comparison result are integrated to obtain the noise detection result.
In an alternative embodiment, the acquisition time of the radio signal is given priority over the audio signal, and the first comparison result is obtained correspondingly, and if the first comparison result indicates that the noise is detected, the noise detection result is considered as the detected noise; if the first comparison result indicates that no noise is detected, the second comparison results are combined. If the second comparison result indicates that noise is detected, the noise detection result is considered as the detected noise; and if the second comparison result indicates that the noise is not detected, the noise detection result is considered as the non-detected noise.
And S260, controlling a signal source of the vehicle-mounted radio according to the noise detection result.
As shown in fig. 2b, the IVI is connected to a signal source switch, which is optionally controlled to close if noise is detected, to mute the radio.
This embodiment obtains the noise detection result through synthesizing first comparison result and second comparison result to improve noise detection's accuracy and real-time.
In the above embodiment, the signal characteristics of the noise signal are obtained by performing machine learning on the signal characteristics of the radio signal when the noise playing condition is satisfied; the signal characteristics of the radio noise signal are obtained by machine learning the signal characteristics of the audio signal when the noise playback condition is satisfied.
Specifically, in the whole life cycle of vehicle driving, whether the noise playing condition is met or not is monitored in real time, and the noise playing condition is the condition for playing the noise signal. Optionally, the noise playing condition includes at least one of: the vehicle-mounted radio is positioned in a signal obstacle area; recognizing noise identification information from a voice signal emitted by a driver; the control operation of the driver on the signal source of the car radio is detected.
The signal obstacle area includes, but is not limited to, an area where objects such as building mountains are located, a bridge opening, an area close to a tower of a transmitting station and an area close to a tower of a transmitting station. And acquiring the positioning information of the vehicle as the positioning information of the vehicle-mounted radio, wherein if the positioning information of the vehicle-mounted radio is located in a signal obstacle area, the vehicle-mounted radio is possible to play a noise signal, and the noise playing condition is met.
The computer device collects voice signals sent by a driver and carries out voice recognition on the voice signals. If the noise identification information is identified from the voice signal, that is, the driver identifies the audio signal being played as noise, such as "too hard to hear", "loud", and "how loud", etc., it indicates that the car radio may play the noise signal, and the noise playing condition is satisfied.
The control operation of the driver on the signal source of the vehicle-mounted radio is specifically the closing or switching operation of the signal source, and comprises the following steps: the control device comprises a mute switch of the multifunctional steering wheel, a signal source switching button of the multifunctional steering wheel, a mute switch of a main machine switch panel and a switching control of the main machine switch panel. If the control operation of the driver on the signal source of the vehicle-mounted radio is detected, the fact that the vehicle-mounted radio possibly plays the noise signal is indicated, and the noise playing condition is met.
When the noise playing condition is met, the signal characteristics of the audio signal are subjected to machine learning to obtain the signal characteristics of the noise signal, and the signal characteristics of the radio signal are subjected to machine learning to obtain the signal characteristics of the radio noise signal.
It should be noted that, in order to avoid the false detection of noise, the driver controls the signal source of the car radio for the first time or sends out voice to trigger the start of the noise detection, and provides the machine learning result, and then automatically detects the noise according to the machine learning result. The present embodiment learns the signal characteristics of the noise signal and the signal characteristics of the radio noise signal by a machine learning triggering method based on driver confirmation, thereby detecting noise by artificial intelligence.
In an application scenario, as shown in fig. 2b, when the computer device is an IVI, the IVI needs to integrate machine learning algorithms and perform noise detection for signal features of radio signals and signal features of audio signals. When the vehicle-mounted radio is located in a signal obstacle area or when a driver considers that a noise signal is played for the first time, a voice signal comprising noise identification information is sent out or a signal source of the vehicle-mounted radio is controlled, the computer equipment carries out primary feature recognition and records a learning set noise signal according to signal features of a radio signal and signal features of an audio signal, and meanwhile, signal source closing or switching operation is executed. And then, in the whole life cycle of the vehicle, the IVI monitors two signal characteristics in real time, carries out intelligent monitoring and learning when the first comparison result and the second comparison result are integrated to obtain a noise detection result, and automatically executes signal source closing or switching operation. When the set noise signal learned by the IVI is not completely covered, new feature supplementary learning is carried out by meeting the noise playing condition, and the IVI gradually enriches the self-learning features until the intelligent noise processing system in the IVI is grown to the state that the driver thinks that all the noise can be automatically covered.
Fig. 3 is a schematic structural diagram of a car radio control apparatus according to an embodiment of the present invention. The vehicle-mounted radio control device provided by the embodiment of the invention can execute the vehicle-mounted radio control method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. As shown in fig. 3, the apparatus 300 includes:
an obtaining module 301, configured to obtain a signal characteristic of a radio signal received by a vehicle-mounted radio;
the acquisition module 302 is used for acquiring audio signals played by the vehicle-mounted radio based on the radio signals;
a detection module 303, configured to perform noise detection based on a signal characteristic of the radio signal and a signal characteristic of the audio signal;
and the control module 304 is used for controlling the signal source of the vehicle-mounted radio according to the noise detection result.
In the embodiment, noise detection is performed based on the signal characteristics of the radio signal and the signal characteristics of the audio signal, so that the situations of delay and misjudgment are avoided by combining a front-end signal judgment mode and a rear-end feedback judgment mode, and the accuracy and the real-time performance of noise detection are improved; the signal source of the vehicle-mounted radio is controlled according to the noise detection result, the noise source is not distinguished, but the signal source is automatically controlled through noise detection under the condition that noise possibly occurs, so that the operation of a driver is reduced, and higher-quality driving experience is provided for the driver and passengers.
Optionally, the detecting module 303 includes a detecting unit, configured to compare a signal characteristic of the radio signal and a signal characteristic of the audio signal with a set noise signal characteristic, so as to obtain a noise detection result.
Optionally, setting the noise signal characteristic includes: signal characteristics of the noise signal and signal characteristics of the radio noise signal; the detection unit comprises a first ratio pair subunit, a second ratio pair subunit and a synthesis subunit. The first comparison subunit is used for comparing the signal characteristics of the radio signal with the signal characteristics of the radio noise signal to obtain a first comparison result; the second comparison subunit is used for comparing the signal characteristics of the audio signal with the signal characteristics of the noise signal to obtain a second comparison result; the comprehensive subunit is used for synthesizing the first comparison result and the second comparison result to obtain a noise detection result.
Optionally, the signal characteristics of the noise signal are obtained by machine learning the signal characteristics of the radio signal when the noise playing condition is met; the signal characteristics of the radio noise signal are obtained by machine learning the signal characteristics of the audio signal when the noise playback condition is satisfied.
Optionally, the noise playing condition includes at least one of: the vehicle-mounted radio is positioned in a signal obstacle area; recognizing noise identification information from a voice signal emitted by a driver; the control operation of the driver on the signal source of the car radio is detected.
Optionally, the control module 304 is specifically configured to turn off or switch the signal source of the car radio if the noise detection result is that noise is detected.
Optionally, the signal characteristics of the radio signal include at least one of strength, frequency, strength of a mobile communication network signal carried by the radio signal, and quality of service; the signal characteristics of the audio signal include at least one of speech recognition results and semantic recognition results of the audio signal.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the above-described apparatus may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
Fig. 4 is a schematic structural diagram of a computer device provided in an embodiment of the present invention, and fig. 4 is a schematic structural diagram of an exemplary device suitable for implementing an embodiment of the present invention. The device 12 shown in fig. 4 is only an example and should not bring any limitation to the function and scope of use of the embodiments of the present invention.
As shown in FIG. 4, device 12 is in the form of a general purpose computing device. The components of device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 4, and commonly referred to as a "hard drive"). Although not shown in FIG. 4, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. System memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in system memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of embodiments described herein.
The processing unit 16 executes various functional applications and data processing by running a program stored in the system memory 28, for example, to implement a car radio control method provided by an embodiment of the present invention, including: acquiring signal characteristics of a radio signal received by a vehicle-mounted radio; collecting an audio signal played by the vehicle-mounted radio based on the radio signal; performing noise detection based on signal characteristics of the radio signal and signal characteristics of the audio signal; and controlling a signal source of the vehicle-mounted radio according to the noise detection result.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program (or referred to as computer-executable instructions) is stored, where the computer program, when executed by a processor, can implement a method for controlling a car radio according to any of the above embodiments, where the method includes: acquiring signal characteristics of a radio signal received by a vehicle-mounted radio; collecting an audio signal played by the vehicle-mounted radio based on the radio signal; performing noise detection based on signal characteristics of the radio signal and signal characteristics of the audio signal; and controlling a signal source of the vehicle-mounted radio according to the noise detection result.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, 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 disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for embodiments of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for controlling a car radio, comprising:
acquiring signal characteristics of a radio signal received by a vehicle-mounted radio;
collecting an audio signal played by the vehicle-mounted radio based on the radio signal;
performing noise detection based on signal characteristics of the radio signal and signal characteristics of the audio signal;
and controlling a signal source of the vehicle-mounted radio according to the noise detection result.
2. The method of claim 1, wherein the performing noise detection based on the signal characteristics of the radio signal and the signal characteristics of the audio signal comprises:
and comparing the signal characteristics of the radio signal and the audio signal with the set noise signal characteristics to obtain a noise detection result.
3. The method of claim 2, wherein said setting a noise signal characteristic comprises: signal characteristics of the noise signal and signal characteristics of the radio noise signal;
comparing the signal characteristics of the radio signal and the audio signal with the set noise signal characteristics to obtain a noise detection result, the method comprises the following steps:
comparing the signal characteristics of the radio signal with the signal characteristics of the radio noise signal to obtain a first comparison result;
comparing the signal characteristics of the audio signal with the signal characteristics of the noise signal to obtain a second comparison result;
and integrating the first comparison result and the second comparison result to obtain a noise detection result.
4. The method of claim 3,
the signal characteristics of the noise signals are obtained by machine learning of the signal characteristics of the radio signals when the noise playing conditions are met;
the signal characteristics of the radio noise signal are obtained by machine learning the signal characteristics of the audio signal when the noise playing condition is satisfied.
5. The method of claim 4, wherein the noise playing conditions comprise at least one of:
the vehicle-mounted radio is positioned in a signal obstacle area;
recognizing noise identification information from a voice signal emitted by a driver;
the control operation of the driver on the signal source of the vehicle-mounted radio is detected.
6. The method according to any one of claims 1-5, wherein the controlling the signal source of the car radio according to the noise detection result comprises:
and if the noise detection result is that the noise is detected, closing or switching the signal source of the vehicle-mounted radio.
7. The method according to any one of claims 1 to 5,
the signal characteristics of the radio signal comprise at least one of the strength, the frequency of the radio signal, the strength of a mobile communication network signal carried by the radio signal and the service quality;
the signal feature of the audio signal includes at least one of a speech recognition result and a semantic recognition result of the audio signal.
8. A car radio control apparatus, comprising:
the acquisition module is used for acquiring the signal characteristics of the radio signals received by the vehicle-mounted radio;
the acquisition module is used for acquiring audio signals played by the vehicle-mounted radio based on the radio signals;
the detection module is used for carrying out noise detection based on the signal characteristics of the radio signal and the signal characteristics of the audio signal;
and the control module is used for controlling the signal source of the vehicle-mounted radio according to the noise detection result.
9. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements a car radio control method according to any of claims 1-7 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a car radio control method according to any one of claims 1-7.
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