KR101342149B1 - Apparatus and method for separating acoustic sound in vehicle - Google Patents

Abstract

In a vehicle with a plurality of speakers corresponding to each seat, a method for separating a sound according to each seat by a network management device includes the steps of: receiving source information requested in at least one seat through a multimedia network; determining an output weight of each source to be applied to each speaker based on the source information requested in each seat and speaker location information; and outputting a corresponding source at each speaker based on the output weight of each source determined according to the speaker. [Reference numerals] (110,110,120,130) Source device;(200,210,220,300,310,320,400,410,500,510) Speaker;(600) Network management device;(AA) Driver's seat;(BB) Passenger seat;(CC) Multi-media network;(DD) Left rear seat;(EE) Right rear seat

Description

Acoustic separation method for vehicles, and network management apparatus for performing the same {APPARATUS AND METHOD FOR SEPARATING ACOUSTIC SOUND IN VEHICLE}

The present invention relates to a vehicle acoustic separation method, and a network management apparatus for performing the same.

The car has a plurality of speakers inside. Vehicle occupants want to enjoy the content according to their preferences. For example, the driver may want to navigate, the passenger in front of the passenger seat may watch a movie, the game in the left rear seat passenger, or the music in the right rear seat passenger. Or the driver may want to hear the audio, but the passenger occupant may not want to hear the audio. In order to satisfy the needs of each vehicle occupant, there is a need for a method of efficiently separating and transmitting sound.

An object of the present invention is to provide a vehicle acoustic separation method for controlling the output of a plurality of speakers installed in a vehicle to listen to different contents for each seat in the vehicle, and a network management apparatus for performing the same.

In a vehicle equipped with a plurality of speakers corresponding to each seat according to an embodiment of the present invention, as a method for separating a sound for each seat by a network management apparatus, receiving source information requested from at least one seat through a multimedia network Determining an output weight for each source to be applied to each speaker based on source information requested from each seat and speaker position information, and outputting a corresponding source from each speaker based on the output weight for each source determined for each speaker. Include.

The step of determining the output weight for each source may determine the volume size and phase for each source output from each speaker.

The determining of the output weight for each source may include outputting the first source requested by the first seat as a first weight value, and requesting the second source from the side seat of the first seat as the second weight value. Outputting, when the third source is requested from the rear seat or the front seat of the first seat, outputting the third source with a third weight value, and requesting the fourth source from the diagonal seat of the first seat, the fourth The output weight for each source to be applied to the speaker of the first seat is output to output the source at the fourth weight value, and the magnitudes of the second weight value, the third weight value, and the fourth weight value are smaller than the first weight value. Can be.

The determining of the output weight for each source may include: the second source output from the speaker of the side seat, the third source output from the speaker of the rear seat, or the front seat, and the fourth output from the speaker of the diagonal seat. The second weight value, the third weight value, and the fourth weight value may be determined such that each of the sources is offset in the first seat.

The determining of the output weight for each source may include outputting the phases of the second source, the third source, and the fourth source output from the speaker of the first seat to be opposite to the speaker of the seat requesting the source. A second weight value, the third weight value, and the fourth weight value may be determined.

In a vehicle equipped with a plurality of speakers corresponding to each seat according to another embodiment of the present invention, as a network management device that separates sound for each seat, source request information for receiving source information requested from at least one seat through a multimedia network A speaker output control unit for determining an output weight for each source to be applied to each speaker based on the receiver, source information requested from each seat, and speaker position information, and a corresponding source from each speaker based on the output weight for each source determined for each speaker It includes an output unit.

The output weight for each source may include a volume size of each source and a phase of each source.

The speaker output control unit may be configured to output a source requested in the arbitrary seat in the normal phase of the speaker of any seat and output the source requested in the surrounding seat of the arbitrary seat in the opposite phase. The output weight of each star can be determined.

According to an embodiment of the present invention, each vehicle occupant may independently listen to content desired by the vehicle occupant. In addition, according to an embodiment of the present invention each vehicle occupant can enjoy the content desired by them without being disturbed by the sound output from the surrounding speakers.

1 and 2 are diagrams schematically illustrating a multimedia network according to an embodiment of the present invention.
3 is a flowchart of a vehicle acoustic separation method according to an exemplary embodiment of the present invention.
4 is a block diagram of a network management apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, except to exclude other components unless otherwise stated.

Now, with reference to the drawings will be described a vehicle acoustic separation method and a network management apparatus for performing the same according to an embodiment of the present invention.

1 and 2 are diagrams schematically illustrating a multimedia network according to an embodiment of the present invention.

Referring to FIG. 1, the multimedia network 10 in a vehicle may be configured in a ring shape. Referring to FIG. 2, the multimedia network 20 in the vehicle may be configured in a star shape.

The multimedia network 10, 20 includes a plurality of source devices 100, 110, 120, and 130 that play content, and a plurality of speakers 200, 210, 220, 300, 310, 320, 400, 410, which output sound. 500 and 510 and a network management device 600 for managing them.

The plurality of source devices 100, 110, 120, and 130 may be, for example, an MP3 player, a DVD player, a radio, a DMB receiving device, a navigation device, or the like.

The plurality of speakers may be arranged for each seat. For example, the speakers 200, 210, and 220 are arranged around the driver's seat. Speakers 300, 310, and 320 are disposed around the passenger seat. Speakers 400 and 410 are disposed in the left rear seat, and speakers 500 and 510 are disposed in the right rear seat.

The network management apparatus 600 manages the multimedia networks 10 and 20 collectively. The network management device 600 collects the requested source at each seat. The network management apparatus 600 controls the output of the plurality of speakers 200-220, 300-320, 400-410, and 500-510 based on the speaker location information when requesting different sources from the plurality of seats. The speaker location information includes speaker positions for each seat, distances between the speakers, and the like. The network management apparatus 600 controls the volume of the source output from each speaker by assigning a weight to each source. In addition, the network management apparatus 600 may control the phase of each source output from the speaker based on the speaker position to cancel the sound output from the other seat speaker.

3 is a flowchart of a vehicle acoustic separation method according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the network management apparatus 600 receives source information requested from at least one seat through the multimedia network 10/20 (S110). For example, the driver's seat requests the content of the source device 100, the passenger seat requests the content of the source device 110, the left rear seat requests the content of the source device 120, and the right rear seat the source device ( 130) may be requested.

The network management apparatus 600 determines an output weight for each source to be applied to each speaker based on source information requested from each seat and speaker location information (S120). At this time, the network management device 600 controls the volume size and phase for each source so that the network management device 600 cancels the sound output from the speakers of the surrounding seats to enjoy the content independently in each seat. Here, the output weight for each source includes a volume size of each source and a phase of each source. For example, if source 1 is requested from any seat, the speaker of any seat outputs source 1 with weight a, source 2 requested from the side seat with weight b, and source 3 requested from the front or rear seat is weighted. c is outputted, and source 4 requested from the diagonal seat can be outputted with weight d. For example, the weight a may be +90, the weight b may be -20, the weight c may be -10, and the weight d may be -5. Here, the '+' and '-' of the weight indicates the sound for transferring the phase in reverse. When the network management apparatus 600 requests content of different source devices in each seat, the network management apparatus 600 may apply an output weight for each source as shown in Table 1 below.

Driver's seat
speaker Passenger seat
speaker Left rear seat
speaker Right rear seat
speaker Source device (100) +90 -20 -10 -5 Source device 110 -20 +90 -5 -10 Source device 120 -10 -5 +90 -20 Source device 130 -5 -10 -20 +90

If the driver's speaker sends source 1 in the '+' phase and the passenger speaker sends source 1 in the '-' phase, the source 1 output from the driver's speaker and the passenger speaker may be canceled at some point. At this time, the network management apparatus 600 may adjust the volume of each speaker so that the source 1 output from the driver's seat speaker and the passenger seat speaker in a specific seat, for example, the passenger seat. For example, the driver's seat speaker may output source 1 at +90 and the passenger seat speaker may output source 1 at −20 so that source 1 is canceled in the passenger seat. At this time, the volume size 90 of the driver's seat speaker and the volume size 20 of the passenger seat speaker are calculated based on the distance between the passenger seat and each speaker. This allows the passenger sitting in the passenger seat to listen to the source of their choice instead of Source 1 of the driver's choice.

The network management apparatus 600 outputs a corresponding source from each speaker based on the output weight for each source determined for each speaker (S130). The network management apparatus 600 does not output the same sound from the vehicle, but outputs a plurality of sounds. For example, the driver's seat speaker 200-220 outputs the content of the source device 100 at a volume of +90, outputs the content of the source device 110 at a volume of -20, and the source device 120. Outputs the content of -10 in a volume of -10 and outputs the content of the source device 130 in a volume of -5. Then, when the driver listens to the content selected by the driver, the sound of the source device 110 selected by the occupant in the passenger seat is canceled, and the sound of the source device 120 and 130 selected by the occupant in the back seat is canceled.

4 is a block diagram of a network management apparatus according to an embodiment of the present invention.

Referring to FIG. 4, the network management apparatus 600 is an apparatus for integrated management of devices connected to the multimedia networks 10 and 20. The network management apparatus 600 includes a source request information receiver 610, a speaker output controller 630, and an output unit 650.

The source request information receiver 610 receives source information requested by at least one seat through the multimedia network 10/20. The source request information receiver 610 may receive a request for a source, that is, content, of different source devices 110 from a plurality of seats.

The speaker output control unit 630 determines an output weight for each source applied to each speaker based on source information requested by each seat and speaker location information. Here, the output weight for each source includes a volume size of each source and a phase of each source. Each speaker outputs the requested source from all seats based on the output weight for each source.

The speaker output control unit 630 controls the volume size and phase for each source, so that the content can be enjoyed independently in each seat regardless of the content selected in the surrounding seats. That is, the speaker output control unit 630 outputs the source requested from the corresponding seat in the normal phase, and outputs the source requested from the surrounding seats such as the side seat, the front seat, and the rear seat in the opposite phase. Determine the output weight for each source applied to the speaker of. At this time, the speaker output controller 630 controls the volume size of the sources requested from the surrounding seats based on the speaker position information, so that the sources requested from the surrounding seats are not heard in any seat.

The output unit 650 outputs sources from each speaker based on the output weight for each source applied to each speaker.

As such, according to an exemplary embodiment of the present invention, each vehicle occupant may independently listen to content desired by the vehicle occupant. In addition, according to an embodiment of the present invention each vehicle occupant can enjoy the content desired by them without being disturbed by the sound output from the surrounding speakers.

The embodiments of the present invention described above are not implemented only by the apparatus and method, but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

Claims (8)

In a vehicle in which a plurality of speakers corresponding to each seat are installed, the network management apparatus separates sound for each seat.
Receiving source information requested by at least one seat through a multimedia network;
Determining an output weight for each source to be applied to each speaker based on source information requested from each seat and speaker location information, and
Outputting the corresponding source from each speaker based on the output weight for each source determined for each speaker
Vehicle acoustic separation method comprising a. In claim 1,
Determining the output weight for each source is
Acoustic separation method for vehicles that determines the volume level and phase for each source output from each speaker. In claim 1,
Determining the output weight for each source is
Outputting the first source requested from the first seat as a first weight value, and outputting the second source as the second weight value when the second source is requested from the side seat of the first seat, the back seat of the first seat or Outputting the third source as the third weight value when the third source is requested from the front seat, and outputting the fourth source as the fourth weight value when the fourth source is requested by the diagonal seat of the first seat. Determine the output weight for each source to apply to the speaker of the seat,
And the magnitudes of the second weight value, the third weight value, and the fourth weight value are smaller than the first weight value. 4. The method of claim 3,
Determining the output weight for each source is
The second source output from the speaker of the side seat, the third source output from the speaker of the rear seat or front seat, and the fourth source output from the speaker of the diagonal seat cancel each other in the first seat. And determining the second weight value, the third weight value, and the fourth weight value. 4. The method of claim 3,
Determining the output weight for each source is
The second weight value, the third weight value, and output the phase of each of the second source, the third source, and the fourth source output from the speaker of the first seat to be opposite to the speaker of the seat requesting the source. And acoustic separation method for determining the fourth weight. In a vehicle equipped with a plurality of speakers corresponding to each seat, as a network management device for separating the sound for each seat,
A source request information receiver configured to receive source information requested by at least one seat through a multimedia network;
A speaker output control unit for determining an output weight for each source to be applied to each speaker based on source information requested from each seat and speaker location information, and
Output unit for outputting the corresponding source from each speaker based on the output weight for each source determined for each speaker
The network management apparatus comprising: The method of claim 6,
The output weight for each source includes a volume size of each source and a phase of each source. The method of claim 6,
The speaker output control unit
In the speaker of any seat, determine the output weight per source applied to the speaker of the arbitrary seat to output the source requested in the arbitrary seat in the normal phase, and output the source requested in the surrounding seat of the arbitrary seat in the opposite phase. Network management device.

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