CN113047728B - Call noise reduction method and device - Google Patents

Call noise reduction method and device Download PDF

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Publication number
CN113047728B
CN113047728B CN202010763448.4A CN202010763448A CN113047728B CN 113047728 B CN113047728 B CN 113047728B CN 202010763448 A CN202010763448 A CN 202010763448A CN 113047728 B CN113047728 B CN 113047728B
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window
preset
noise
copilot
driving position
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CN113047728A (en
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黄国平
李炳光
黄荣
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Huizhou Foryou General Electronics Co Ltd
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Huizhou Foryou General Electronics Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/71—Power-operated mechanisms for wings with automatic actuation responsive to temperature changes, rain, wind or noise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/55—Windows

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The invention provides a call noise reduction method and a device, wherein the method comprises the following steps: when the Bluetooth hands-free call is detected to be connected, detecting the states of a driving position window and a secondary driving position window; when the driving position window and the assistant driving position window are detected to be in the opening state, acquiring external environment noise and wind noise information outside the automobile; and controlling the lifting of at least one of the driving position window and the assistant driving position window according to the external environment noise and the wind noise. The invention realizes that the lifting of the car window can be automatically controlled under the condition of keeping the car window not completely closed when encountering noisy environmental noise in the conversation process, thereby keeping the conversation quality and improving the driving experience.

Description

Call noise reduction method and device
Technical Field
The invention relates to the technical field of auxiliary driving, in particular to a method and a device for reducing noise in a call.
Background
At present, vehicle-mounted infotainment systems are increasingly popularized in automobiles, and the travel experience of drivers and passengers is enriched, wherein the Bluetooth hands-free function (HFP) enables drivers to complete the communication with the other side through the vehicle-mounted infotainment systems and vehicle-mounted speakers.
However, when a driver calls through HFP during the process of driving with a window, the noise of the environment inside and outside the vehicle is too large, and the speech of the other party cannot be heard clearly, so that the call quality is reduced, and therefore, the driver needs to disperse more energy on the call, and traffic accidents are easily caused.
Therefore, the prior art is in need of further improvement.
Disclosure of Invention
The invention provides a conversation noise reduction method and device, aiming at overcoming the defects in the prior art, and realizing the purposes of automatically controlling the lifting of a vehicle window under the condition of keeping the vehicle window not completely closed when noisy environmental noise is encountered in the conversation process, keeping the conversation quality and improving the driving experience.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
one aspect of the present invention provides a method for reducing noise in a call, including:
step 1, detecting the states of a driving position window and a copilot window after detecting that the Bluetooth hands-free call is connected;
step 2, when the driving position window and the assistant driving position window are detected to be in an opening state, obtaining external environment noise and wind noise information outside the automobile;
and 3, controlling the lifting of at least one of the driving position window and the copilot window according to the external environment noise and the wind noise.
Specifically, the step 3 includes:
301, when the external environment noise is greater than a first preset environment noise threshold value, controlling the lifting of at least one of a driving position window and a copilot window according to a first preset strategy;
step 302, when the external environment noise is smaller than a second preset environment noise threshold value and the wind noise is larger than a first preset wind noise threshold value, controlling the lifting of at least one of a driving position window and a copilot window according to a second preset strategy;
and 303, when the external environment noise is smaller than a first preset environment noise threshold value and larger than a second preset environment noise threshold value, and the wind noise is larger than the first preset wind noise threshold value, controlling the lifting of at least one of the driving position window and the assistant driving position window according to a third preset strategy.
Specifically, the first preset policy includes:
step A1, obtaining position information of a driving position window and a copilot position window, judging whether the driving position window and the copilot position window reach preset window positions, if so, finishing, and if not, simultaneously lifting the driving position window and the copilot position window until the external environment noise is lower than a first preset environment noise threshold value;
step A2, judging whether the wind noise is smaller than a first preset wind noise threshold value, if so, stopping adjusting the driving position window and the copilot window, otherwise, entering the next step;
step A3, judging whether the passenger seat window reaches a preset window position, if so, entering the next step, otherwise, continuing to lift the passenger seat window, and returning to the step A2;
and step A4, sending out the prompt information of deceleration driving.
Specifically, the second preset policy includes:
step B1, obtaining the window position, judging whether the driving position window and the copilot position window reach the preset window position, if so, entering step B4, otherwise, reducing the driving position window until the external environment noise is equal to the second preset environment noise threshold value, and simultaneously raising the copilot position window;
step B2, judging whether the wind noise is smaller than the first preset wind noise threshold value, if so, stopping lifting the window of the copilot, otherwise, entering the next step;
step B3, judging whether the passenger car window reaches a preset car window position, if so, entering the next step, otherwise, continuing to lift the passenger car window, and returning to the step B2;
and step B4, sending out the prompt information of deceleration driving.
Specifically, the third preset policy includes:
step C1, obtaining the window position, judging whether the driving position window and the copilot position window reach the preset window position, if so, finishing, otherwise, lifting the copilot window;
step C2, judging whether the wind noise is smaller than the first preset wind noise threshold value, if so, stopping lifting the window of the copilot, otherwise, entering the next step;
step C3, judging whether the window of the copilot reaches the preset position, if so, entering the next step, otherwise, continuing to lift the window of the copilot, and returning to the step B2;
and step C4, sending out the prompt information of deceleration driving.
Further, after the step 3, the method further comprises the following steps:
and 4, if the preset window position is in a completely closed state, acquiring the temperature in the vehicle after all windows are closed, and if the temperature in the vehicle is not within a preset range, automatically starting the air conditioner.
Further, after the step 4, the method further comprises:
and 5, when the Bluetooth hands-free call is detected to be finished, restoring the driving position window and the auxiliary driving position window to the positions before the call.
Specifically, the second preset ambient noise threshold is smaller than the first preset ambient noise threshold.
Specifically, the first preset ambient noise threshold is 60dB, and the second preset ambient noise threshold is 40 dB.
Another aspect of the present invention provides a device for reducing noise in a call, including:
the system comprises a call monitoring module, a vehicle window position acquisition module, a noise acquisition module, a first execution module, a second execution module and a prompt module, wherein the call monitoring module, the vehicle window position acquisition module, the noise acquisition module, the first execution module, the second execution module and the prompt module are connected with a judgment control module;
the call monitoring module is used for detecting the call state of the Bluetooth telephone;
the vehicle window position acquisition module is used for acquiring states of a vehicle window at a driving position and a vehicle window at a copilot position;
the noise acquisition module is used for acquiring external environment noise and wind noise;
the first execution module is used for controlling the lifting of the windows of the driving position;
the second execution module is used for controlling the lifting of the window of the copilot;
the prompt module is used for outputting prompt information;
and the judgment control module is used for sending out a command for controlling the lifting of the window of the driving position and the window of the auxiliary driving position according to the volume relation between the external environment noise and the wind noise.
Furthermore, the conversation noise reduction device also comprises a temperature acquisition module and a third execution module;
the temperature acquisition module is used for acquiring the temperature in the vehicle;
and the third execution module is used for controlling the opening and closing of the air conditioner.
Further, the communication noise reduction device further comprises a storage module for storing the position information of the vehicle window.
The invention has the beneficial effects that: according to the invention, when the Bluetooth hands-free call is connected, after the driving position car window and the assistant driving position car window are detected to be in the opening state, the external environment noise and wind noise information outside the car are obtained, and the lifting of at least one car window of the driving position car window and the assistant driving position car window is controlled according to the external environment noise and the wind noise, so that the lifting of the car window can be automatically controlled under the condition that the car window is not completely closed when the noisy environment noise is met in the call process, the call quality is kept, and the driving experience is improved.
Drawings
Fig. 1 is a flow chart diagram of a call noise reduction method of the present invention;
fig. 2 is a schematic structural diagram of a call noise reduction device of the present invention;
fig. 3 is another schematic structural diagram of the call noise reduction device of the present invention;
fig. 4 is another schematic structural diagram of the call noise reduction device of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are for reference and illustrative purposes only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the present embodiment provides a call noise reduction method, including:
step 1, detecting the states of a driving position window and a copilot window after detecting that the Bluetooth hands-free call is connected.
And 2, when the driving position window and the assistant driving position window are detected to be in the opening state, acquiring external environment noise and wind noise information outside the automobile.
Wind noise is generated by turbulence created by the airflow as it passes over the microphone port or diaphragm, and the off-board wind noise information is captured by the wind noise microphone.
The external environment noise refers to noise other than wind noise.
When a microphone is installed, the wind noise and the external environment noise can be identified based on a voice recognition algorithm according to the characteristics of the wind noise and the external noise.
When two microphones are installed, one microphone may pick up ambient noise and the other microphone may pick up wind noise according to a differential recognition algorithm.
The method for acquiring wind noise and external environment noise through a microphone is the prior art, and is not described herein again.
And 3, controlling the lifting of at least one of the driving position window and the copilot window according to the external environment noise and the wind noise.
In one embodiment of the present invention, the step 3 comprises:
and 301, when the external environment noise is larger than a first preset environment noise threshold value, controlling the lifting of at least one of the driving position windows and the copilot windows according to a first preset strategy.
In this embodiment, the first predetermined ambient noise threshold is 60 dB.
In this embodiment, the first preset policy includes:
and A1, acquiring position information of a driving position window and a copilot position window, judging whether the driving position window and the copilot position window reach preset window positions, if so, finishing, and if not, simultaneously lifting the driving position window and the copilot position window until the external environment noise is lower than a first preset environment noise threshold value.
And A2, judging whether the wind noise is smaller than a first preset wind noise threshold value, if so, stopping adjusting the driving position window and the copilot window, and if not, entering the next step.
And A3, judging whether the passenger seat window reaches the preset window position, if so, entering the next step, otherwise, continuing to lift the passenger seat window, and returning to the step A2.
And step A4, sending out the prompt information of deceleration driving.
In specific implementation, the first preset wind noise threshold may be calibrated according to how much wind speed/wind pressure the microphone is subjected to when affecting a call.
The preset window position is 80% of the height of the whole window, or the user sets and adjusts the window height by himself.
And 302, when the external environment noise is smaller than a second preset environment noise threshold value and the wind noise is larger than a first preset wind noise threshold value, controlling the lifting of at least one of the driving position window and the copilot window according to a second preset strategy.
In this embodiment, the second preset ambient noise threshold is smaller than the first preset ambient noise threshold.
In this embodiment, the second preset ambient noise threshold is 40 dB.
In this embodiment, the second preset policy includes:
and B1, obtaining the position of the window, judging whether the driving position window and the passenger seat window reach the preset window position, if so, entering the step B4, otherwise, reducing the driving position window until the external environment noise is equal to the second preset environment noise threshold value, and simultaneously increasing the passenger seat window.
And step B2, judging whether the wind noise is smaller than the first preset wind noise threshold value, if so, stopping lifting the window of the copilot, and otherwise, entering the next step.
And B3, judging whether the passenger seat window reaches the preset window position, if so, entering the next step, otherwise, continuing to lift the passenger seat window, and returning to the step B2.
And step B4, sending out the prompt information of deceleration driving.
The higher the wind speed flowing through the microphone, the greater the wind pressure received by the microphone and the greater the wind noise. While the wind speed flowing through the microphone is proportional to the window lift height. Thus, lowering the driving position window can reduce wind noise by raising the passenger position window.
And 303, when the external environment noise is smaller than a first preset environment noise threshold value and larger than a second preset environment noise threshold value, and the wind noise is larger than the first preset wind noise threshold value, controlling the lifting of at least one of the driving position window and the assistant driving position window according to a third preset strategy.
In this embodiment, the third preset policy includes:
and C1, acquiring the window position, judging whether the driving position window and the copilot position window reach the preset window position, if so, finishing, and otherwise, lifting the copilot window.
And step C2, judging whether the wind noise is smaller than the first preset wind noise threshold value, if so, stopping lifting the window of the copilot, and otherwise, entering the next step.
And C3, judging whether the window of the copilot reaches the preset position, if so, entering the next step, otherwise, continuously lifting the window of the copilot, and returning to the step B2.
And step C4, sending out the prompt information of deceleration driving.
In another embodiment of the present invention, after the step 3, the method further comprises:
and 4, if the preset window position is in a completely closed state, acquiring the temperature in the vehicle after all windows are closed, and if the temperature in the vehicle is not within a preset range, automatically starting the air conditioner.
In another embodiment of the present invention, after the step 4, the method further comprises:
and 5, when the Bluetooth hands-free call is detected to be finished, restoring the driving position window and the auxiliary driving position window to the positions before the call.
Example 2
As shown in fig. 2, the present embodiment provides a call noise reduction apparatus, including:
the system comprises a call monitoring module, a vehicle window position acquisition module, a noise acquisition module, a first execution module, a second execution module and a prompt module, wherein the call monitoring module, the vehicle window position acquisition module, the noise acquisition module, the first execution module, the second execution module and the prompt module are connected with a judgment control module;
the call monitoring module is used for detecting the call state of the Bluetooth telephone;
the vehicle window position acquisition module is used for acquiring states of a vehicle window at a driving position and a vehicle window at a copilot position;
the noise acquisition module is used for acquiring external environment noise and wind noise;
the first execution module is used for controlling the lifting of the windows of the driving position;
the second execution module is used for controlling the lifting of the window of the copilot;
the prompt module is used for outputting prompt information;
and the judgment control module is used for sending out a command for controlling the lifting of the window of the driving position and the window of the auxiliary driving position according to the volume relation between the external environment noise and the wind noise.
In one embodiment of the present invention, the noise acquisition module is a microphone.
In specific implementation, the microphone is arranged on one side of a door of a driver seat close to the top of a window glass.
The working process of the communication noise reduction device is as follows:
when the communication monitoring module detects that the Bluetooth hands-free communication is connected, the judgment control module reads the states of the driving position car window and the auxiliary driving position car window detected by the control module from the car window position acquisition module. When judging control module and detecting driver's position door window, copilot position door window are in the open mode after, read its external environment noise and the wind noise information of obtaining the car from noise acquisition module to according to external environment noise and wind noise, the lift of at least one door window in control driver's position door window, the copilot position door window includes:
1) and when the judgment control module judges that the external environment noise is greater than a first preset environment noise threshold value, controlling the lifting of at least one of the driving position car window and the copilot car window according to a first preset strategy. The method comprises the following steps:
the judgment control module acquires position information of a driving position window and a copilot position window from the window position acquisition module, judges whether the driving position window and the copilot position window reach preset window positions or not, if so, the judgment is finished, and otherwise, the first execution module and the second execution module are controlled to simultaneously lift the driving position window and the copilot position window until the external environment noise is lower than a first preset environment noise threshold value;
the judgment control module judges whether the wind noise is smaller than a first preset wind noise threshold value or not, if so, the first execution module and the second execution module are controlled to stop regulating the driving position window and the copilot window, otherwise, the copilot window is judged whether to reach a preset window position or not, if so, the prompt module is controlled to send out prompt information for speed reduction driving, and otherwise, the second execution module is continuously controlled to lift the copilot window.
2) And when the judgment control module judges that the external environment noise is smaller than a second preset environment noise threshold value and the wind noise is larger than a first preset wind noise threshold value, controlling the lifting of at least one of the driving position car window and the assistant driving position car window according to a second preset strategy. The method comprises the following steps:
the judging control module acquires a window position from the window position acquisition module, judges whether a driving position window and a copilot position window reach a preset window position, controls the prompt module to send out prompt information for speed reduction driving if the driving position window and the copilot position window reach the preset window position, otherwise controls the first execution module to reduce the driving position window until the external environment noise is equal to the second preset environment noise threshold value, and simultaneously controls the second execution module to raise the copilot position window;
the judgment control module judges whether wind noise is smaller than a first preset wind noise threshold value or not, if so, the second execution module is controlled to stop lifting the window of the copilot, otherwise, whether the window of the copilot reaches a preset window position or not is judged, if so, the prompt module is controlled to send out prompt information for speed reduction driving, and otherwise, the second execution module is continuously controlled to lift the window of the copilot.
3) And when the judgment control module judges that the external environment noise is smaller than a first preset environment noise threshold value and larger than a second preset environment noise threshold value and the wind noise is larger than the first preset wind noise threshold value, controlling the lifting of at least one of the driving position car window and the assistant driving position car window according to a third preset strategy. The method comprises the following steps:
the judging control module acquires the window position from the window position acquiring module, judges whether the driving position window and the copilot window reach the preset window position, if so, ends the process, and otherwise, controls the second execution module to lift the copilot window;
the judgment control module judges whether wind noise is smaller than a first preset wind noise threshold value or not, if so, the second execution module is controlled to stop lifting the window of the copilot, otherwise, whether the window of the copilot reaches a preset position or not is judged, if so, the prompt module is controlled to send out prompt information for speed reduction driving, and otherwise, the second execution module is controlled to continue lifting the window of the copilot.
As shown in fig. 3, in another embodiment of the present invention, the call noise reduction apparatus further includes a temperature obtaining module and a third executing module;
the temperature acquisition module is used for acquiring the temperature in the vehicle;
and the third execution module is used for controlling the opening and closing of the air conditioner.
And the judgment control module acquires the in-vehicle temperature acquired by the temperature acquisition module after judging that all the vehicle windows are closed, and controls the third execution module to automatically start the air conditioner if the in-vehicle temperature is not within a preset range.
As shown in fig. 4, in another embodiment of the present invention, the conversation noise reduction device further includes a storage module, configured to store the position information of the window.
And when the judgment control module detects that the Bluetooth hands-free call is ended, reading the stored position information of the vehicle window from the storage module, and controlling the first execution module and the second execution module to restore the vehicle window at the driving position and the vehicle window at the auxiliary driving position to the positions before the call.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention.

Claims (7)

1. A method for reducing noise in a call, comprising:
step 1, detecting the states of a driving position window and a copilot window after detecting that the Bluetooth hands-free call is connected;
step 2, when the driving position window and the assistant driving position window are detected to be in an opening state, obtaining external environment noise and wind noise information outside the automobile;
step 3, controlling the lifting of at least one of the windows of the driving position and the windows of the copilot according to the external environment noise and the wind noise;
the step 3 comprises the following steps:
301, when the external environment noise is greater than a first preset environment noise threshold value, controlling the lifting of at least one of a driving position window and a copilot window according to a first preset strategy;
step 302, when the external environment noise is smaller than a second preset environment noise threshold value and the wind noise is larger than a first preset wind noise threshold value, controlling the lifting of at least one of a driving position window and a copilot window according to a second preset strategy;
and 303, when the external environment noise is smaller than a first preset environment noise threshold value and larger than a second preset environment noise threshold value, and the wind noise is larger than the first preset wind noise threshold value, controlling the lifting of at least one of the driving position window and the assistant driving position window according to a third preset strategy.
2. The call noise reduction method according to claim 1, wherein the first preset strategy comprises:
step A1, obtaining position information of a driving position window and a copilot position window, judging whether the driving position window and the copilot position window reach preset window positions, if so, finishing, and if not, simultaneously lifting the driving position window and the copilot position window until the external environment noise is lower than a first preset environment noise threshold value;
step A2, judging whether the wind noise is smaller than a first preset wind noise threshold value, if so, stopping adjusting the driving position window and the copilot window, otherwise, entering the next step;
step A3, judging whether the passenger seat window reaches a preset window position, if so, entering the next step, otherwise, continuing to lift the passenger seat window, and returning to the step A2;
and step A4, sending out the prompt information of deceleration driving.
3. The call noise reduction method according to claim 1, wherein the second preset strategy comprises:
step B1, obtaining the window position, judging whether the driving position window and the copilot position window reach the preset window position, if so, entering step B4, otherwise, reducing the driving position window until the external environment noise is equal to the second preset environment noise threshold value, and simultaneously raising the copilot position window;
step B2, judging whether the wind noise is smaller than the first preset wind noise threshold value, if so, stopping lifting the window of the copilot, otherwise, entering the next step;
step B3, judging whether the passenger car window reaches a preset car window position, if so, entering the next step, otherwise, continuing to lift the passenger car window, and returning to the step B2;
and step B4, sending out the prompt information of deceleration driving.
4. The call noise reduction method according to claim 1, wherein the third preset strategy comprises:
step C1, obtaining the window position, judging whether the driving position window and the copilot position window reach the preset window position, if so, finishing, otherwise, lifting the copilot window;
step C2, judging whether the wind noise is smaller than the first preset wind noise threshold value, if so, stopping lifting the window of the copilot, otherwise, entering the next step;
step C3, judging whether the window of the copilot reaches the preset position, if so, entering the next step, otherwise, continuing to lift the window of the copilot, and returning to the step B2;
and step C4, sending out the prompt information of deceleration driving.
5. The method of reducing noise in a call according to claim 1, further comprising, after the step 3:
and when the Bluetooth hands-free call is detected to be finished, restoring the driving position window and the auxiliary driving position window to the positions before the call.
6. A speech noise reduction apparatus, comprising:
the system comprises a call monitoring module, a vehicle window position acquisition module, a noise acquisition module, a first execution module, a second execution module and a prompt module, wherein the call monitoring module, the vehicle window position acquisition module, the noise acquisition module, the first execution module, the second execution module and the prompt module are connected with a judgment control module;
the call monitoring module is used for detecting the call state of the Bluetooth telephone;
the vehicle window position acquisition module is used for acquiring states of a vehicle window at a driving position and a vehicle window at a copilot position;
the noise acquisition module is used for acquiring external environment noise and wind noise;
the first execution module is used for controlling the lifting of the windows of the driving position;
the second execution module is used for controlling the lifting of the window of the copilot;
the prompt module is used for outputting prompt information;
and the judgment control module is used for sending out a command for controlling the lifting of the window of the driving position and the window of the auxiliary driving position according to the volume relation between the external environment noise and the wind noise.
7. The device of claim 6, further comprising a storage module for storing the position information of the window.
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