KR20160039951A - Vehicle's external sound output system and method - Google Patents

Vehicle's external sound output system and method Download PDF

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Publication number
KR20160039951A
KR20160039951A KR1020140133294A KR20140133294A KR20160039951A KR 20160039951 A KR20160039951 A KR 20160039951A KR 1020140133294 A KR1020140133294 A KR 1020140133294A KR 20140133294 A KR20140133294 A KR 20140133294A KR 20160039951 A KR20160039951 A KR 20160039951A
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KR
South Korea
Prior art keywords
sound
external
vehicle
external sound
collected
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Application number
KR1020140133294A
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Korean (ko)
Inventor
유현재
박성두
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현대모비스 주식회사
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Priority to KR1020140133294A priority Critical patent/KR20160039951A/en
Publication of KR20160039951A publication Critical patent/KR20160039951A/en

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    • 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
    • B60R16/037—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 for occupant comfort, e.g. for automatic adjustment of appliances according to personal settings, e.g. seats, mirrors, steering wheel
    • 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
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/04—Sound-producing devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/005—Moving wireless networks

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

Provided are a system and a method for outputting an external sound of a vehicle. The system for outputting an external sound of a vehicle comprises: an external sound collection unit attached to the external surface of a vehicle to collect external sounds on the outside of the vehicle; an external sound extraction unit extracting an external sound which matches a sound model from the collected external sounds through a comparison between the collected external sounds and the sound model; and an external sound output unit outputting the extracted external sound to the inside of the vehicle. According to the present invention, the system enables a driver to recognize an external emergency situation and helps the driver drive safely, by removing unwanted noise from sound coming from the outside of the vehicle and selectively outputting only required sound to the inside of the vehicle.

Description

[0001] VEHICLE'S EXTERNAL SOUND OUTPUT SYSTEM AND METHOD [0002]

The present invention relates to a system for outputting sounds generated from the outside to a vehicle interior, and more particularly, to a system for outputting sound generated from the outside of the vehicle to a vehicle interior in a state where a window and a door are closed, To an external sound output system of a vehicle and a method thereof.

There are various kinds of noise generated by the vehicle, for example, the noise generated in the engine room, the wind noise generated when the wind blows against the vehicle body while running, and the noise generated by the tire rolling on the road surface.

Especially, the biggest noise of the vehicle is the engine sound, and the engine sound is caused by noise during intake or exhaust, explosion of the mixer or sound during combustion, and sound of the timing belt rotating. Therefore, a soundproof panel is attached to the inside of most vehicle doors.

Specifically, the door of the vehicle is made up of an outer panel and an inner door trim, and a door window, an indoor speaker, and a soundproof panel are installed therebetween. At this time, the role of the soundproof panel in the vehicle door is particularly important because the soundproof panel suppresses external noise passing through the door and into the interior of the vehicle.

However, the soundproof panel technology of the conventional vehicle door has a problem that not only the external noise of the vehicle but also the sound (e.g., siren sound, horn sound, screaming sound) required by the driver is blocked (Publication No. 10-2013-0075403).

Accordingly, since the driver can not hear the sound generated from the outside, it is impossible to recognize the external emergency situation, which may hinder safe driving of the vehicle.

In order to solve the above-mentioned problems, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a sound processing method and a sound processing method, Screaming sound, etc.) and outputting the extracted sound to the inside of the vehicle, and a method thereof.

According to an aspect of the present invention, there is provided an external sound output system for a vehicle, the external sound output system comprising: an external negative collector attached to an external surface of a vehicle for collecting external sounds outside the vehicle; An external sound extracting unit for extracting an external sound corresponding to the sound model from the collected external sounds, and an external sound output unit for outputting the extracted external sound into the vehicle.

The external sound collector communicates with the external sound extractor using Bluetooth communication or network communication of the vehicle.

The external sound extracting unit may include a preprocessing unit for pre-processing the collected external sounds, a feature extracting unit for extracting the preprocessed external sound features, and a determination unit for determining whether the extracted sound model matches the previously stored external sound database And a comparison determination unit for extracting an external sound corresponding to the sound model from the collected external sounds according to the determination result.

The preprocessor preprocesses the collected external sounds using at least one of sampling, frequency modulation, and noise processing.

The external sound output unit may be an audio device or an AVN (Audio Video Navigation) device mounted on the vehicle.

The sound model is modeled as at least one of sirens, horns, and screams.

According to another aspect of the present invention, there is provided a method for outputting an external sound of a vehicle, the method comprising the steps of: collecting outside sounds from a vehicle; comparing the collected external sounds with sound models; Extracting the sound and outputting the extracted external sound into the vehicle.

The step of extracting the external sound may include the steps of pre-processing the collected external sound, extracting the characteristics of the preprocessed external sound, and determining whether the extracted external sound matches the previously stored sound model And extracting an external sound corresponding to the sound model from the collected external sounds according to the determination result.

The step of pre-processing the collected external sounds may include pre-processing the collected external sounds using at least one of sampling, frequency modulation, and noise processing.

The step of judging whether or not the sound model matches with the sound model is to judge whether or not the sound model of at least one of a siren sound, a horn sound and a scream sound matches the collected external sound.

According to the present invention, unnecessary noise is removed from the sound generated from the outside of the vehicle, and only a necessary sound is selectively output to the inside of the vehicle, thereby providing an advantage that the driver can recognize the emergency situation outside and can safely operate the vehicle.

1 is a block diagram showing a configuration of an external sound output system of a vehicle according to an embodiment of the present invention.
FIG. 2 is a detailed block diagram of the external sound extracting unit shown in FIG. 1. Referring to FIG.
3 is a flowchart illustrating a method of outputting an external sound of a vehicle according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The scope of the present invention is defined by the description of the claims.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms herein include plural forms unless the context clearly dictates otherwise. &Quot; comprises " and / or "comprising" when used in this specification is taken to specify the presence or absence of one or more other components, steps, operations and / Or add-ons. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a configuration of an external sound output system of a vehicle according to an embodiment of the present invention.

1, an external sound output system of a vehicle according to an embodiment of the present invention includes an external negative sound collector 100, an external sound extractor 110, and an external sound output unit 120. [

The external minus collector 100 is mounted on the outer surface of the vehicle and collects external sounds outside the vehicle and collects the collected external sounds using a communication method such as Bluetooth communication or vehicle network communication (e.g., LIN communication) (111). At this time, the external negative electrode collector 100 may be a microphone-type device having a permanent magnet attached thereto for freely attaching or detaching the external negative electrode collector 100 to the external surface of the vehicle, May be further included.

In the present invention, the external sound refers to a sound generated in the vicinity of the vehicle. For example, the external sound indicates a danger such as noise between the vehicle and the road surface, ambient noise such as engine noise and horn sound, siren sound, Sound, and the like.

The external sound extraction unit 110 extracts an external sound corresponding to the sound model among the external sounds collected through comparison between the external sound provided by the external negative electrode collector 100 and the pre-stored sound model.

Hereinafter, the detailed configuration of the external sound extraction unit 110 and the detailed operation thereof will be described in detail with reference to FIG.

FIG. 2 is a detailed block diagram of the external sound extraction unit 110 shown in FIG.

2, the external sound extraction unit 110 of the external sound output system of the vehicle according to the embodiment of the present invention includes a preprocessing unit 111, a feature extraction unit 112, a comparison determination unit 113, And a database 114.

The preprocessing unit 111 performs a noise process for sampling and modulating the external sound provided by the external negative electrode collector 100 and removing noise from the modulated external sound. The preprocessing unit 111 provides the preprocessed external sound to the feature extraction unit 112.

In addition to the above-described sampling, frequency modulation, and noise processing, various types of preprocessing processes may be added to improve feature extraction performance of the feature extraction unit 112 to be described later.

The feature extraction unit 112 extracts feature parameters such as a pitch period, a height, an intensity, and the like by analyzing a frequency pattern and a waveform of the external sound provided by the preprocessing unit 111, ).

The comparison determination unit 113 compares the extracted external sounds provided by the feature extraction unit 112 with the previously stored sound models in the database 114 to determine whether they match or not. Only the external sounds that match the model are selectively extracted. At this time, sound models modeling the frequency characteristics of the sounds indicating danger such as sirens, horns, and screams are stored in the database 114 in advance.

For example, when the frequency band of the feature extracted external sound provided by the feature extraction unit 112 is similar to the sound model frequency band of the syllable sound previously stored in the database 114 within a certain error range , It is possible to selectively extract only the external sound of this section.

The comparison determination unit 113 outputs the extracted external sound to the interior of the vehicle through the external sound output unit 120. [ Accordingly, the external sound output unit 120 may be an audio device mounted inside the vehicle, and may include an AVN (Audio) unit including a display device capable of outputting a danger signal (a message, a warning sound, Video Navigation) device.

That is, the present invention provides an external sound output system that filters out only sound (siren sound, horn sound, scream sound, etc.) required from the outside of the vehicle and outputs it to the interior of the vehicle, thereby assuring safe operation of the driver.

3 is a flowchart illustrating a method of outputting an external sound of a vehicle according to an embodiment of the present invention.

3, an external sound output method of a vehicle according to an embodiment of the present invention first acquires external sounds generated in the vicinity of a vehicle (S300), samples the collected external sounds, and performs frequency modulation and noise (S310). In addition to the above-described sampling, frequency modulation, and noise processing, various preprocessing methods may be added.

Then, the preprocessed external sound is analyzed to extract characteristics such as the pitch period, height, and strength of the external sound (S320).

As described above, a technique of pre-processing and feature extraction for extracting a sound of a specific pattern from the collected sounds may be performed by any known method, so that a detailed description of the operation will be omitted.

When the feature extraction process of the external sound is completed, a sound model indicating a danger such as a syllable sound, a horn sound, a scream sound modeled in advance and the sound model modeled in advance in the database are compared (S330) .

If it is determined that there is an external sound matching the sound model among the collected external sounds, only the external sound corresponding to the sound model is selectively extracted (S350). For example, if the frequency band of the pre-modeled syllable sound is compared with the frequency band of the received external sound and the frequency bands of the two sounds are similar within a certain error range, the external sound of the syllable sound can be selectively extracted.

When extraction of the external sound corresponding to the sound model is completed, the extracted external sound is output through the audio device or the display device mounted on the vehicle (S360).

Background Art [0002] With recent advances in soundproofing technology for vehicles, noise and noise such as engine noise between a vehicle and a road surface are excellent. However, when the external sound is completely cut off, there is a problem that all the sounds required for safe operation of the vehicle are blocked. Accordingly, it is an object of the present invention to provide an external sound selective output system and method for a vehicle that can eliminate unnecessary noise among sound generated from the outside of a vehicle, .

The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made without departing from the essential characteristics of the present invention. Therefore, the embodiments of the present invention are not intended to limit the scope of the present invention, and the scope of the present invention is not limited by these embodiments. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents, which fall within the scope of the present invention as claimed.

Claims (10)

An outer negative collector attached to an outer surface of the vehicle for collecting an outer sound outside the vehicle;
An external sound extracting unit for extracting an external sound corresponding to the sound model among the collected external sounds through comparison between the collected external sound and the sound model; And
An external sound output unit for outputting the extracted external sound into the vehicle,
Wherein the external sound output system of the vehicle includes:
The sound output apparatus according to claim 1, wherein the external sound extracting unit
A preprocessor for preprocessing the collected external sounds;
A feature extraction unit for extracting features of the preprocessed external sound; And
And a comparison judging unit for judging whether or not the feature extracted external sounds match the sound model previously stored in the database and extracting an external sound corresponding to the sound model from the collected external sounds according to the judgment result
The external sound output system of the vehicle.
3. The apparatus of claim 2, wherein the pre-
Sampling the collected external sound to perform frequency modulation, and noise-processing the modulated external sound
The external sound output system of the vehicle.
2. The method of claim 1,
Modeling at least one sound of sirens, horns, and screams
The external sound output system of the vehicle.
2. The apparatus of claim 1, wherein the external sound collector
Communicating with the external sound extraction unit using Bluetooth communication or network communication of the vehicle
The external sound output system of the vehicle.
The sound output apparatus according to claim 1, wherein the external sound output section
An audio device mounted on the vehicle or an AVN (Audio Video Navigation) device
The external sound output system of the vehicle.
Collecting external sounds outside the vehicle;
Extracting an external sound corresponding to the sound model from the collected external sounds through comparison between the collected external sound and the sound model; And
And outputting the extracted external sound into the vehicle
And outputting the external sound to the vehicle.
8. The method of claim 7, wherein extracting the external sound comprises:
Pre-processing the collected external sounds;
Extracting features of the preprocessed external sound; And
Determining whether the feature extracted external sound coincides with the previously stored sound model;
And extracting an external sound corresponding to the sound model from the collected external sounds according to the determination result
Of the vehicle.
9. The method according to claim 8, wherein the step of pre-processing the collected external sounds
Preprocessing the collected external sounds using at least one of sampling, frequency modulation, and noise processing
Of the vehicle.
9. The method of claim 8, wherein the step of determining whether or not the sound model matches
Determining whether a sound model of at least one of a siren sound, a horn sound, and a scream sound matches the collected external sound
Of the vehicle.
KR1020140133294A 2014-10-02 2014-10-02 Vehicle's external sound output system and method KR20160039951A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107757537A (en) * 2016-08-15 2018-03-06 上海汽车集团股份有限公司 The audio control method and device of a kind of on-board engine
US11898870B2 (en) 2021-09-02 2024-02-13 Here Global B.V. Apparatus and methods for providing a route using a map layer of one or more sound events

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107757537A (en) * 2016-08-15 2018-03-06 上海汽车集团股份有限公司 The audio control method and device of a kind of on-board engine
US11898870B2 (en) 2021-09-02 2024-02-13 Here Global B.V. Apparatus and methods for providing a route using a map layer of one or more sound events

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