CN113470606A - Method, system, medium and device for realizing active noise reduction in vehicle - Google Patents
Method, system, medium and device for realizing active noise reduction in vehicle Download PDFInfo
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/128—Vehicles
- G10K2210/1282—Automobiles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention provides a method, a system, a medium and a device for realizing active noise reduction in a vehicle, wherein the method comprises the following steps: judging whether the vehicle enters an automatic driving mode or not; and starting the active noise reduction function when the vehicle enters the automatic driving mode. The method, the system, the medium and the device for realizing the active noise reduction in the vehicle are used for reducing the noise in the vehicle under the condition that the vehicle enters an automatic driving mode, so that a user can have a better rest and is not disturbed by environmental noise.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a method, a system, a medium and a device for realizing active noise reduction in a vehicle.
Background
The vehicle driving process may generate large environmental noise, and certainly, when a user drives the vehicle, the user needs to obtain external sound to drive the vehicle better, so that the sound insulation effect of the vehicle is determined to be not good, otherwise, the user cannot obtain whistling sounds, horn sounds and the like outside the vehicle, and traffic safety is affected.
However, as vehicle technology advances, automated driving technology has become more advanced, and automated driving may be selected for vehicle driving when a user is tired. However, in this case, the external environmental noise may affect the rest of the user.
Therefore, it is desirable to solve the problem of how to reduce the environmental noise of the vehicle when the vehicle enters the automatic driving mode.
Disclosure of Invention
In view of the above drawbacks of the prior art, an object of the present invention is to provide a method, a system, a medium, and a device for implementing active noise reduction in a vehicle, which are used to solve the problem of how to reduce environmental noise of the vehicle when the vehicle enters an automatic driving mode in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a method for actively reducing noise in a vehicle, comprising the following steps: judging whether the vehicle enters an automatic driving mode or not; and starting the active noise reduction function when the vehicle enters the automatic driving mode.
In an embodiment of the present invention, the turning on the active noise reduction function when the vehicle enters the automatic driving mode includes the following steps: acquiring environmental noise through a vehicle-mounted sound input device; generating sound waves with opposite phases and same amplitudes as the environmental noise based on the environmental noise; and playing the sound wave through a vehicle-mounted sound output device.
In an embodiment of the invention, at least two of the car audio output devices are provided.
In an embodiment of the invention, the environmental noise is low-frequency noise recognizable to human ears.
In order to achieve the above object, the present invention further provides a system for implementing active noise reduction in a vehicle, including: the device comprises a judging module and a noise reduction module; the judging module is used for judging whether the vehicle enters an automatic driving mode or not; the noise reduction module is used for starting an active noise reduction function when the vehicle enters an automatic driving mode.
In an embodiment of the present invention, the noise reduction module is configured to activate an active noise reduction function when the vehicle enters the automatic driving mode, and includes: acquiring environmental noise through a vehicle-mounted sound input device; generating sound waves with opposite phases and same amplitudes as the environmental noise based on the environmental noise; and playing the sound wave through a vehicle-mounted sound output device.
In an embodiment of the invention, at least two of the car audio output devices are provided.
In an embodiment of the invention, the environmental noise is low-frequency noise recognizable to human ears.
To achieve the above object, the present invention further provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements any of the above implementation methods for active noise reduction in a vehicle.
In order to achieve the above object, the present invention further provides an implementation apparatus for active noise reduction in a vehicle, including: a processor and a memory; the memory is used for storing a computer program; the processor is connected with the memory and is used for executing the computer program stored in the memory so as to enable the device for realizing the active noise reduction in the vehicle to execute any method for realizing the active noise reduction in the vehicle.
As described above, the method, system, medium and apparatus for implementing active noise reduction in a vehicle according to the present invention have the following advantages: the method is used for reducing the noise in the vehicle under the condition that the vehicle enters an automatic driving mode, so that a user can have a better rest and is not disturbed by environmental noise.
Drawings
FIG. 1a is a schematic view of an application scenario architecture of an embodiment of a method for implementing active noise reduction in a vehicle according to the present invention;
FIG. 1b is a flowchart illustrating a method for implementing active noise reduction in a vehicle according to an embodiment of the present invention;
FIG. 1c is a flow chart illustrating a method for implementing active noise reduction in a vehicle according to another embodiment of the present invention;
FIG. 1d is a flow chart illustrating a method for implementing active noise reduction in a vehicle according to still another embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of an active noise reduction system in a vehicle according to the present invention;
fig. 3 is a schematic structural diagram of an implementation apparatus for active noise reduction in a vehicle according to an embodiment of the present invention.
Description of the element reference numerals
21 judging module
22 noise reduction module
31 processor
32 memory
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, so that the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, the type, quantity and proportion of the components in actual implementation can be changed freely, and the layout of the components can be more complicated.
The method, the system, the medium and the device for realizing the active noise reduction in the vehicle are used for reducing the noise in the vehicle under the condition that the vehicle enters an automatic driving mode, so that a user can have a better rest and is not disturbed by environmental noise.
As shown in fig. 1a, the implementation method, system, medium, device and vehicle of the active noise reduction in the vehicle of the present invention are applied in an application scenario where the vehicle enters an automatic driving mode. An automatic driving vehicle (also called an unmanned vehicle or a computer-driven vehicle) is an intelligent vehicle which realizes unmanned driving through the control of a computer system. Autonomous vehicles rely on the cooperative cooperation of artificial intelligence (intelligence), visual computing (visual computing), radar, monitoring devices (monitoring devices) and Global Positioning Systems (GPS) to allow computers to operate motor vehicles automatically and safely without any human active operations. The automatic driving mode is a mode that the vehicle is controlled by a computer system to realize unmanned driving, and certainly, the vehicle is provided with an automatic driving mode and a manual driving mode, wherein the manual driving mode is that the existing common user drives the automobile by himself. And the vehicle can be switched from a manual driving mode to an automatic driving mode and also can be switched from the automatic driving mode to the manual driving mode. When the user does not want to drive by oneself when feeling tired, can select the autopilot mode, this time does not need the user to go by oneself to feel external vehicle condition, external sound condition, can influence customer's experience on the contrary if external noise is too big this moment, influences customer's rest. Therefore, there is a need to reduce noise and allow a user to have a better rest in the case where the vehicle enters the automatic driving mode.
As shown in fig. 1b, in an embodiment, the method for implementing active noise reduction in a vehicle according to the present invention includes the following steps:
step S11, it is determined whether the vehicle is in the automatic driving mode.
Specifically, the current driving mode information of the vehicle is acquired through the CAN bus, so that whether the vehicle enters an automatic driving mode or not is judged. For example, whether a steering wheel of a current vehicle is touched is obtained through a sensor to judge a current driving mode of the vehicle, if the steering wheel is touched by a person, the current driving mode is an artificial driving mode, and if the steering wheel is not touched by the person, the current driving mode is an automatic driving mode. Or the current driving mode information is acquired through the bus, whether the current driving mode is the manual driving mode or the automatic driving mode is judged, and when the current driving mode is the automatic driving mode, the vehicle enters the automatic driving mode. The CAN is a short name for Controller Area Network (CAN), developed by BOSCH company of germany, which is a well-known automotive electronics research and production, and finally becomes an international standard (ISO 11898). Is one of the most widely used field buses internationally. In north america and western europe, the CAN bus protocol has become the standard bus for automotive computer control systems and embedded industrial control area networks, and possesses the J1939 protocol designed for large trucks and heavy work machinery vehicles with CAN as the underlying protocol. In recent years, the high reliability and good error detection capability of the sensor are emphasized, and the sensor is widely applied to an automobile computer control system and an industrial environment with severe environmental temperature, strong electromagnetic radiation and large vibration. The CAN bus principle is that the CAN bus, the sensor, the controller and the actuator are connected by a serial data line. The network can detect and correct data errors caused by electromagnetic interference in the data transmission process according to the protocol, and the communication protocol of the network is equivalent to a data link layer in an ISO/OSI reference model. CAN networks are easier to deploy, allowing direct communication between any station without having to aggregate all data to a host computer for processing. When a node (station) on the CAN bus sends data, it broadcasts in a message to all nodes in the network. Each node receives data whether or not it is addressed to itself. The 11-bit character at the beginning of each group of messages is an identifier, which defines the priority of the messages, and the message format is called a content-oriented addressing scheme.
And step S12, starting the active noise reduction function when the vehicle enters the automatic driving mode.
Specifically, as shown in fig. 1c, in an embodiment, the turning on the active noise reduction function when the vehicle enters the automatic driving mode includes the following steps:
and step S121, acquiring the environmental noise through the vehicle-mounted sound input device.
In particular, the vehicle-mounted sound input device includes, but is not limited to, a microphone or the like, a transducer that converts sound into an electrical signal.
In the human ear range, 20Hz to 200Hz is low frequency, and the irregular sound is called low frequency noise which is generated by 20 to 200 times of vibration in one second. The frequency is a medium frequency at 500Hz to 2KHz, and the high frequency is 2KHz to 16 KHz. If the numerical value is more distributed above 2KHz and the numerical value is less distributed below 500Hz to 2KHz, the noise is called high-frequency noise. The value is largely distributed in the frequency band of 500Hz to 2KHz, and can be called as intermediate frequency noise. The larger distribution of the values is below 200Hz, so the noise is called low-frequency noise. The frequency of sound that human ear can hear is 20 to 2000 Hz, and low frequency noise refers to the sound below 200Hz (octave), although the decibel is not high, the propagation distance is far, the influence range is large, if a person receives its invasion for a long time, neurasthenia, insomnia, headache, hypomnesis, comprehensive judgment ability are reduced, etc. are easily caused. Specifically, the environmental noise is low-frequency noise recognizable to human ears. Since the noise is more comfortable and less troubled by the user when the vehicle is running, only low frequency noise recognizable to the human ear, specifically 20Hz to 200Hz, needs to be acquired. Thus, although the technical difficulty is lower without aiming at all noises, a better noise reduction effect can be achieved.
Of course, noise is also recognizable to the human ear if conditions permit. Therefore, the noise reduction effect is better, but the frequency range of the environmental noise which needs to be acquired is wider.
And step S122, generating sound waves with opposite phases and same amplitudes with the environmental noise based on the environmental noise.
Specifically, the method further comprises the steps of identifying the frequency band where the environmental noise is located, and generating sound waves with the same amplitude and opposite phases of each frequency band and the environmental noise based on different frequency bands.
And S123, playing the sound wave through the vehicle-mounted sound output device.
Specifically, the vehicle-mounted sound output device includes, but is not limited to, a sound box and a loudspeaker. A speaker refers to a device that can convert an audio signal into sound. The popular way is that a power amplifier is arranged in a main box body or a bass box body of the sound box, and the sound is emitted back by the sound box after the audio signal is amplified, so that the sound is increased. The loudspeaker box is a terminal of the whole sound system and is used for converting audio electric energy into corresponding sound energy and radiating the sound energy into a space. It is an extremely important component of an audio system and is responsible for the task of converting electrical signals into acoustic signals for direct listening by the human ear.
Specifically, the vehicle-mounted sound output devices are at least two. The left and right sides that are located carriage the place ahead respectively plays better noise reduction effect like this.
As shown in fig. 1d, in an embodiment, the method for implementing active noise reduction in a vehicle according to the present invention includes the following steps: specifically, the following example performs a summary explanation of all steps. When the vehicle runs on the road, the current vehicle is known to be in the automatic driving mode through the CAN bus. The environmental noise of the vehicle at that time is acquired through the in-vehicle sound input device. And generating sound waves with opposite phases and same amplitudes with the environmental noise based on the environmental noise. And playing the sound wave through a vehicle-mounted sound output device. Therefore, under the condition that the vehicle enters the automatic driving mode, the noise in the vehicle is reduced, and a user can have a good rest without being disturbed by environmental noise.
As shown in fig. 2, in an embodiment, the system for implementing active noise reduction in a vehicle according to the present invention includes a determining module 21 and a noise reducing module 22.
The judging module 21 is used for judging whether the vehicle enters an automatic driving mode.
Specifically, the current driving mode information of the vehicle is acquired through the CAN bus, so that whether the vehicle enters an automatic driving mode or not is judged. For example, whether a steering wheel of a current vehicle is touched is obtained through a sensor to judge a current driving mode of the vehicle, if the steering wheel is touched by a person, the current driving mode is an artificial driving mode, and if the steering wheel is not touched by the person, the current driving mode is an automatic driving mode. Or the current driving mode information is acquired through the bus, whether the current driving mode is the manual driving mode or the automatic driving mode is judged, and when the current driving mode is the automatic driving mode, the vehicle enters the automatic driving mode.
The noise reduction module 22 is configured to activate an active noise reduction function when the vehicle enters an autonomous driving mode.
Specifically, in one embodiment, the noise reduction module 22 is configured to activate the active noise reduction function when the vehicle enters the automatic driving mode, and includes:
the ambient noise is acquired through the vehicle-mounted sound input device.
In particular, the vehicle-mounted sound input device includes, but is not limited to, a microphone or the like, a transducer that converts sound into an electrical signal.
In the human ear range, 20Hz to 200Hz is low frequency, and the irregular sound is called low frequency noise which is generated by 20 to 200 times of vibration in one second. The frequency is a medium frequency at 500Hz to 2KHz, and the high frequency is 2KHz to 16 KHz. If the numerical value is more distributed above 2KHz and the numerical value is less distributed below 500Hz to 2KHz, the noise is called high-frequency noise. The value is largely distributed in the frequency band of 500Hz to 2KHz, and can be called as intermediate frequency noise. The larger distribution of the values is below 200Hz, so the noise is called low-frequency noise. The frequency of sound that human ear can hear is 20 to 2000 Hz, and low frequency noise refers to the sound below 200Hz (octave), although the decibel is not high, the propagation distance is far, the influence range is large, if a person receives its invasion for a long time, neurasthenia, insomnia, headache, hypomnesis, comprehensive judgment ability are reduced, etc. are easily caused. Specifically, the environmental noise is low-frequency noise recognizable to human ears. Since the noise is more comfortable and less troubled by the user when the vehicle is running, only low frequency noise recognizable to the human ear, specifically 20Hz to 200Hz, needs to be acquired. Thus, although the technical difficulty is lower without aiming at all noises, a better noise reduction effect can be achieved.
Of course, noise is also recognizable to the human ear if conditions permit. Therefore, the noise reduction effect is better, but the frequency range of the environmental noise which needs to be acquired is wider.
And generating sound waves with opposite phases and same amplitudes with the environmental noise based on the environmental noise.
Specifically, the method further comprises the steps of identifying the frequency band where the environmental noise is located, and generating sound waves with the same amplitude and opposite phases of each frequency band and the environmental noise based on different frequency bands.
And playing the sound wave through a vehicle-mounted sound output device.
Specifically, the vehicle-mounted sound output device includes, but is not limited to, a sound box and a loudspeaker. A speaker refers to a device that can convert an audio signal into sound. The popular way is that a power amplifier is arranged in a main box body or a bass box body of the sound box, and the sound is emitted back by the sound box after the audio signal is amplified, so that the sound is increased. The loudspeaker box is a terminal of the whole sound system and is used for converting audio electric energy into corresponding sound energy and radiating the sound energy into a space. It is an extremely important component of an audio system and is responsible for the task of converting electrical signals into acoustic signals for direct listening by the human ear.
Specifically, the vehicle-mounted sound output devices are at least two. The left and right sides that are located carriage the place ahead respectively plays better noise reduction effect like this.
It should be noted that the structures and principles of the determining module 21 and the noise reduction module 22 correspond to the steps in the implementation method for active noise reduction in the vehicle one to one, and therefore, the description is omitted here.
It should be noted that the division of the modules of the above system is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the x module may be a processing element that is set up separately, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the x module may be called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
In an embodiment of the present invention, the present invention further includes a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements any one of the above-mentioned methods for implementing active noise reduction in a vehicle.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the above method embodiments may be performed by hardware associated with a computer program. The aforementioned computer program may be stored in a computer readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
As shown in fig. 3, in an embodiment, the device for actively reducing noise in a vehicle according to the present invention includes: a processor 31 and a memory 32; the memory 32 is for storing a computer program; the processor 31 is connected to the memory 32 and configured to execute the computer program stored in the memory 32, so that the implementation apparatus for active noise reduction in a vehicle executes any implementation method for active noise reduction in a vehicle.
Specifically, the memory 32 includes: various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.
Preferably, the Processor 31 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components.
In summary, the method, the system, the medium and the device for realizing the active noise reduction in the vehicle are used for reducing the noise in the vehicle under the condition that the vehicle enters the automatic driving mode, so that a user can have a better rest and is not disturbed by environmental noise. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A method for realizing active noise reduction in a vehicle is characterized by comprising the following steps:
judging whether the vehicle enters an automatic driving mode or not;
and starting the active noise reduction function when the vehicle enters the automatic driving mode.
2. The method for implementing active noise reduction in a vehicle according to claim 1, wherein the step of starting the active noise reduction function when the vehicle enters an automatic driving mode comprises the following steps:
acquiring environmental noise through a vehicle-mounted sound input device;
generating sound waves with opposite phases and same amplitudes as the environmental noise based on the environmental noise;
and playing the sound wave through a vehicle-mounted sound output device.
3. The method for implementing active noise reduction in a vehicle according to claim 2, wherein there are at least two vehicular sound output devices.
4. The method for implementing active noise reduction in the vehicle according to claim 2, wherein the ambient noise is low-frequency noise recognizable to human ears.
5. The utility model provides an implementation system that initiative was fallen and is made an uproar in car which characterized in that includes: the device comprises a judging module and a noise reduction module;
the judging module is used for judging whether the vehicle enters an automatic driving mode or not;
the noise reduction module is used for starting an active noise reduction function when the vehicle enters an automatic driving mode.
6. The system of claim 5, wherein the noise reduction module is configured to turn on the active noise reduction function when the vehicle enters the automatic driving mode, and comprises:
acquiring environmental noise through a vehicle-mounted sound input device;
generating sound waves with opposite phases and same amplitudes as the environmental noise based on the environmental noise;
and playing the sound wave through a vehicle-mounted sound output device.
7. The system for actively reducing noise in a vehicle according to claim 6, wherein there are at least two vehicular sound output devices.
8. The system of claim 6, wherein the ambient noise is low frequency noise recognizable to human ears.
9. A computer-readable storage medium, on which a computer program is stored, wherein the computer program is executed by a processor to implement the method for implementing in-vehicle active noise reduction according to any one of claims 1 to 4.
10. The utility model provides an implementation device that active noise reduction in car, its characterized in that includes: a processor and a memory;
the memory is used for storing a computer program;
the processor is connected with the memory and is used for executing the computer program stored in the memory so as to enable the device for realizing active noise reduction in the vehicle to execute the method for realizing active noise reduction in the vehicle as claimed in any one of claims 1 to 4.
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