Automobile audio-on-vehicle noise monitoring and adjusting system and automobile

Abstract

The utility model discloses an automobile sound along with automobile noise monitoring and adjusting system and an automobile, the automobile sound along with automobile noise monitoring and adjusting system comprises a multimedia host and a loudspeaker assembly, the output end of the multimedia host is connected to the loudspeaker assembly, and the multimedia host is used for adjusting sound of the loudspeaker assembly; the adjusting system further comprises a noise sensor, the noise sensor is used for collecting the noise intensity in the vehicle, the output end of the noise sensor is connected to the multimedia host, and the multimedia host adjusts the sound intensity of the loudspeaker assembly based on the noise intensity. The sound volume adjusting device has the advantages that the sound volume of the multimedia loudspeaker in the vehicle is automatically adjusted through the collected noise, and the influence of the noise on the music in the vehicle is reduced by increasing the music playing sound.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile multimedia playing control, especially to a car sound vehicle noise monitoring and adjusting system and car. BACKGROUND

[0002] The automobile multimedia is an important entertainment function of the vehicle, and the driver usually starts music during driving. The existing technology usually adjusts the volume of the multimedia host through the button to meet the user's volume adjustment requirement. However, due to different designs of different vehicle models and different requirements for sealing conditions, the wind noise, tire noise and engine noise are different. Moreover, the noise is different with different vehicle speeds, and even in many cases, the noise covers or affects the music sound, resulting in poor user experience. The user needs to repeatedly adjust the volume of the multimedia, which affects the driving safety of the driver.

[0003] The existing technology usually reduces the noise in the vehicle to reduce the influence of the noise on the multimedia music in the vehicle. The ways to reduce or decrease the noise include: 1. reducing the engine noise by pasting sound-absorbing materials under the engine cover; 2. reducing the tire noise by pasting sound insulation materials on the door, door edge, upper part of wheel arch, wing panel and chassis; 3. reducing the wind noise by increasing the sealing of the whole vehicle, reducing the sealing gap of the four doors, and increasing the sealing of the joint, such as adding a sealing strip on the door frame and installing sound insulation cotton inside the door panel. Although these ways can reduce or decrease the noise into the vehicle, with the increase of the vehicle speed, the noise also increases. Moreover, due to the cost and material, the sound insulation measures are not set for every vehicle model, such as the low-end and low-price vehicle models, which can use less sound insulation materials, thus inevitably affecting the normal use of the user. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects of the prior art, and provides a car sound vehicle noise monitoring and adjusting system and car. The sound of the multimedia speaker in the vehicle is automatically adjusted according to the collected noise, and the influence of the noise on the music in the vehicle is reduced by increasing the sound of the music playing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a car sound vehicle noise monitoring and adjusting system, which comprises a multimedia host and a speaker assembly. The output end of the multimedia host is connected to the speaker assembly for adjusting the sound of the speaker assembly. The adjusting system further comprises a noise sensor for collecting the noise intensity in the vehicle. The output end of the noise sensor is connected to the multimedia host, and the multimedia host adjusts the sound intensity of the speaker assembly based on the noise intensity.

[0006] The multimedia host is connected with a start switch, and a user inputs an opening or closing signal of the user operation.

[0007] The multimedia host is connected with a volume adjustment button, and a user obtains an input signal of the volume adjustment button and controls the sound intensity of the speaker assembly based on the volume adjustment button.

[0008] The noise sensor comprises a plurality of sensors arranged at a plurality of monitoring points in the vehicle, and each noise sensor corresponds to one or more speaker assemblies.

[0009] The speaker assembly comprises a loudspeaker and a power amplifier module for driving the loudspeaker, and the output end of the multimedia host is connected to the loudspeaker through the power amplifier module.

[0010] The start switch is a soft switch integrated in the touch screen of the multimedia host.

[0011] The multimedia host is provided with a noise threshold, the output end of the multimedia host is connected to a vehicle-mounted alarm, and the multimedia host sends an alarm signal through the vehicle-mounted alarm when the noise is greater than the set threshold.

[0012] An automobile comprises the noise monitoring and adjusting system.

[0013] The utility model discloses the advantages are as follows: the sound volume of the multimedia loudspeaker in the vehicle is automatically adjusted through the collected noise, the influence of noise on the music in the vehicle is reduced through increasing the sound of music playing, the user experience is improved to a certain extent, the inconvenience caused by manual adjustment of noise is reduced, and the driving experience and driving safety are improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The content expressed by each drawing of the specification of the application and the marks in the drawing are briefly described as follows:

[0015] Figure 1 It is the structure principle drawing of the monitoring and adjusting system of the utility model. DETAILED DESCRIPTION

[0016] The specific embodiment of the application is further explained in detail through the description of the optimal embodiment by referring to the drawings.

[0017] The present scheme mainly aims at the defects of the prior art that noise affects the user's listening to music in the vehicle, and designs a noise monitoring and adjusting system, which can automatically increase the sound volume of the speaker according to the increase of the noise in the vehicle, so that the defects that the music cannot be clearly heard or the user's listening to music is affected due to the influence of noise can be avoided or reduced, and the specific scheme is as follows:

[0018] As shown in Figure 1 An automobile sound vehicle noise monitoring and adjusting system, comprising a multimedia host and a speaker assembly; wherein the multimedia host and the speaker assembly are both vehicle-mounted components, the output end of the multimedia host is connected to the speaker assembly, the multimedia host is used to drive the speaker assembly to emit sound and to drive the size of the sound volume of the speaker assembly to adjust. In this scheme, a noise sensor is provided in the automobile, the noise sensor is used to collect the noise intensity in the vehicle, and the output end thereof is connected to the multimedia host, the multimedia host adjusts the sound intensity of the speaker assembly based on the noise intensity. The noise sensor is used to collect the noise in the vehicle, and the size of the sound of the speaker assembly during the music playing of the multimedia host is adjusted and controlled based on the noise in the vehicle, so that the size of the sound emitted by the corresponding speaker assembly can be adjusted according to the size of the noise in the vehicle.

[0019] In a preferred embodiment, since the noise in the vehicle is superimposed with the noise after playing music, in order to realize accurate noise collection, the multimedia host can drive the speaker to pause the sound emission of the speaker assembly for less than a set time when driving the noise sensor to collect noise signals (the set time of the pause can be set, generally less than 1 second or even less than 0.5 seconds, mainly to reduce the influence on the user during the pause sound, and to obtain the noise without affecting the user experience), so that the noise collected by the noise sensor is only the noise in the vehicle and will not be superimposed with the music sound, so that the collected noise will be more accurate, avoiding the risk of superimposing the music sound. The multimedia host is connected with a timer, the timer can set a timing time of about three minutes, and the speaker assembly is paused for a small time every three minutes, and the vehicle noise is collected through the noise sensor in the small pause time, and the sound of the speaker assembly is dynamically adjusted through the size of the noise. Or the principle of microphone echo cancellation can be used, the signal emitted by the speaker is used as a reference signal, the microphone sound collection will contain echo and noise, the reference signal and the signal collected by the microphone are compared, the echo is filtered out through an algorithm, and the noise signal is obtained.

[0020] The multimedia host drives the speaker assembly to occur and can adjust the occurrence volume size thereof, wherein the speaker assembly comprises a power amplifier module and a loudspeaker, the output end of the multimedia host is connected to the loudspeaker through the power amplifier module, and the sound volume size emitted by the loudspeaker is adjusted by controlling the power amplifier module. The power size of the power amplifier module can be adjusted by the output electric signal of the multimedia host to adjust the sound size emitted by the loudspeaker, and the purpose of volume adjustment is achieved.

[0021] In the adjustment control, the noise sensor is used to monitor the noise in the car, the noise level in the car is judged according to the decibel value, and then the sound of the loudspeaker assembly of the multimedia host is dynamically adjusted according to the noise value, and the sound of the music playing can be automatically adjusted. Because the audio file drives the loudspeaker assembly to emit music sound when playing music in the car, it is only necessary to adjust the sound volume of the loudspeaker assembly. For noise level value: the weighted average algorithm can be used, and the average value of the noise in 10s or 20s can be used to judge the noise level, so that the noise level is more accurate. After detecting that the decibel value of the noise is greater than the set threshold, the value is classified, and then the sound volume of the loudspeaker assembly is adjusted according to the classified level. The sound volume is adjusted by classifying the noise level and the corresponding volume. Each noise level corresponds to an intensity of electrical signal, and then different levels of electrical signal are used to drive the loudspeaker assembly to work in different states to achieve the purpose of adjusting and controlling different music volume levels. For example, the noise value is divided into eight levels: 40-46, 46-52, 52-58, 58-64, 64-70, 70-76, 76-82, and 82 above. Each level corresponds to a sound volume intensity of the loudspeaker output, and when the noise in the car is detected in one of the levels, the corresponding loudspeaker assembly is controlled according to the volume intensity of the level.

[0022] In a preferred embodiment, the multimedia host is connected with a start switch, the user enters the start or stop signal of the user operation, and the start switch is used to start or stop the sound of the car noise function. When the start switch is started, the multimedia host controls the sound volume of the loudspeaker assembly by detecting the noise in the car; when the start switch is closed, the multimedia host prohibits the control of the volume of the loudspeaker assembly according to the noise in the car. The start switch is realized by software, that is, a soft switch integrated in the touch screen of the multimedia host, which realizes the start and stop of the system function through the soft switch, gives the user full freedom of choice, and improves the user experience.

[0023] In a preferred embodiment of this application, a priority is set, with the volume control buttons inside the vehicle having a higher priority than adjusting the volume based on in-vehicle noise. That is, the multimedia host is connected to the volume control buttons. The user receives the input signal from the volume control buttons and controls the sound intensity of the speaker components based on the volume control buttons, while simultaneously prohibiting adjustments to the speaker components based on in-vehicle noise. Because automatic adjustment may not always perfectly meet the user's actual needs, if the multimedia host detects that the user is adjusting the volume using the in-vehicle volume control buttons, it immediately executes the corresponding volume adjustment command, while simultaneously prohibiting volume adjustment based on in-vehicle noise. This is equivalent to turning off the start switch, with manual adjustment by the user having the highest priority, and automatic adjustment following the user's settings.

[0024] In another preferred embodiment of this invention, multiple noise sensors are disposed at multiple monitoring points within the vehicle. Each noise sensor corresponds to one or more speaker components. The multimedia host controls the sound intensity of the speaker component corresponding to the noise sensor based on the noise data collected by the noise sensors. Figure 1 As shown, two noise sensors are set up: noise sensor 1 and noise sensor 2, which detect noise near the front driver's cabin and noise in the rear passenger cabin, respectively. Since there are many speaker components in the car, the noise collected by noise sensor 1 is used to adjust the volume of the speaker components in the passenger cabin, and the noise collected by noise sensor 2 is used to adjust the volume of the speaker components in the front driver's cabin. In this way, the volume of the speakers can be adjusted according to the noise in different locations in the car, thereby meeting the needs of users and improving the user experience.

[0025] In one preferred scheme in the embodiment, a noise threshold is set in the multimedia host, the output end of the multimedia host is connected to the vehicle-mounted alarm, and the multimedia host sends an alarm signal through the vehicle-mounted alarm when the noise is greater than the set threshold. Since the general automobile noise is below 60dB, and the noise level in the passenger car is not greater than 82dB in the operating safety technical conditions of the motor vehicle, the noise in the vehicle actually has a certain threshold requirement, and when the noise exceeds the threshold, it indicates that the vehicle has a fault or an abnormality, and the user is suggested to go for maintenance, so that according to the comparison of the set noise threshold and the actual threshold, when the noise threshold is exceeded, the vehicle-mounted alarm can send a reminder information to remind the user to timely handle and maintain the vehicle. The vehicle-mounted alarm can use the display screen of the multimedia host or the instrument display screen to display the alarm reminder information, so as to monitor the noise anomaly in the vehicle from the side and give a maintenance reminder. In order to avoid the alarm false triggering caused by the user actively opening the window and causing the noise to be too large, the application also detects the window opening state, wherein the window sensor is connected to the multimedia host, and the multimedia host obtains the opening and closing state of the window through the window sensor. When the noise exceeds the noise threshold, it is detected whether the window is opened, if yes, the vehicle-mounted alarm is not driven to send an alarm reminder, and if not, it may be that the vehicle has some sealing or other problems, and the vehicle-mounted alarm can give a reminder.

[0026] The scheme also provides an automobile including the vehicle noise monitoring and adjusting system in the above embodiment, which has all the technical advantages of the vehicle noise monitoring and adjusting system in the above embodiment, including: automatically adjusting the sound volume of the multimedia speaker in the vehicle through the collected noise, reducing the influence of noise on the music in the vehicle through increasing the sound of music playing, improving the user experience to a certain extent, reducing the inconvenience caused by manual adjustment, and improving the driving experience and driving safety.

[0027] Obviously, the specific implementation of the application is not limited by the above manner, and various non-essential improvements made by adopting the method concept and technical scheme of the application are within the protection scope of the application.

Claims

1. A vehicle sound and noise monitoring and adjusting system, comprising a multimedia host and a speaker assembly, an output end of the multimedia host being connected to the speaker assembly for adjusting sound of the speaker assembly; characterized in that: The adjusting system further comprises a noise sensor for collecting noise intensity in the car, and an output of the noise sensor is connected to the multimedia host, and the multimedia host adjusts sound intensity of the speaker assembly based on the noise intensity; The multimedia host is provided with a noise threshold, an output of the multimedia host is connected to a car alarm, and the multimedia host sends an alarm signal through the car alarm when noise is greater than the set threshold; the multimedia host is connected to a window sensor, and the window sensor is used for collecting a car window opening and closing state signal.

2. A system for monitoring and adjusting the sound of a vehicle according to claim 1, wherein: The multimedia host is connected to a start switch, and a user inputs an opening or closing signal of user operation into the start switch.

3. A system for monitoring and adjusting the sound of a vehicle according to claim 1 or 2, characterized in that: The multimedia host is connected to a volume adjusting button, and a user obtains an input signal of the volume adjusting button and controls sound intensity of the speaker assembly based on the volume adjusting button.

4. A system for monitoring and adjusting the sound of a vehicle according to claim 1 or 2, characterized in that: The noise sensor comprises a plurality of noise sensors, which are respectively arranged at a plurality of monitoring points in the car, each noise sensor corresponds to one or more speaker assemblies, and the multimedia host controls sound intensity of the speaker assembly corresponding to the noise sensor based on noise collected by the noise sensor.

5. A system for monitoring and adjusting the sound of a vehicle according to claim 1 or 2, wherein: The speaker assembly comprises a loudspeaker and a power amplifier module for driving the loudspeaker, and an output of the multimedia host is connected to the loudspeaker through the power amplifier module, and sound volume of the loudspeaker is adjusted by controlling the power amplifier module.

6. A system for monitoring and adjusting the sound of a vehicle according to claim 2, wherein: The start switch is a soft switch integrated in a touch screen of the multimedia host.

7. An automobile characterized by comprising: The car comprises the noise monitoring and adjusting system according to any one of claims 1-6.

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