KR20220138148A - System to reduce interior noise in engine room - Google Patents

System to reduce interior noise in engine room Download PDF

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KR20220138148A
KR20220138148A KR1020210043915A KR20210043915A KR20220138148A KR 20220138148 A KR20220138148 A KR 20220138148A KR 1020210043915 A KR1020210043915 A KR 1020210043915A KR 20210043915 A KR20210043915 A KR 20210043915A KR 20220138148 A KR20220138148 A KR 20220138148A
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noise
rpm
measured
offset
indoor
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KR1020210043915A
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Korean (ko)
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KR102597082B1 (en
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전성진
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삼성중공업 주식회사
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/09—Reducing noise
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/121—Rotating machines, e.g. engines, turbines, motors; Periodic or quasi-periodic signals in general
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/128—Vehicles
    • G10K2210/1282—Automobiles
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3026—Feedback

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

An interior noise reduction system for an engine room is disclosed. An interior noise reduction system for an engine room according to an embodiment of the present invention, which is to reduce interior noise of an engine room where an engine is mounted, comprises an rpm measuring unit for measuring the rpm of the engine, and a cancelling noise generating unit for generating cancelling noise for cancelling engine noise of the engine based on the measurement rpm measured by the rpm measuring unit.

Description

엔진룸 실내 소음 저감 시스템{System to reduce interior noise in engine room}Engine room interior noise reduction system {System to reduce interior noise in engine room}

본 발명은 엔진룸 실내 소음 저감 시스템에 관한 것이다.The present invention relates to an engine room indoor noise reduction system.

선박에는 엔진을 탑재하기 위한 엔진룸이 별도로 존재한다.There is a separate engine room for mounting an engine on a ship.

엔진룸은 엔진의 작동 소음으로 인해 작업환경이 좋지 않다. 통상적으로 엔진룸에서 근무하는 작업자에게 난청이 발생하여 엔진룸의 작업 환경 개선이 시급한 실정이다.The engine room is not a good working environment due to the operating noise of the engine. In general, hearing loss occurs in workers working in the engine room, and there is an urgent need to improve the working environment of the engine room.

본 발명의 실시예는, 엔진룸의 실내 소음을 저감시키도록 구성된 시스템을 제공하고자 한다.SUMMARY OF THE INVENTION An embodiment of the present invention is to provide a system configured to reduce indoor noise of an engine room.

본 발명의 일 측면에 따르면, 엔진이 탑재된 엔진룸의 실내 소음을 저감하는 시스템으로서, 상기 엔진의 알피엠을 측정하는 알피엠 측정부; 및 상기 알피엠 측정부에 의해 측정된 측정 알피엠을 기초로 상기 엔진의 엔진 소음을 상쇄하는 상쇄 소음을 생성하는 상쇄 소음 생성부를 포함하는, 엔진룸 실내 소음 저감 시스템이 제공될 수 있다.According to an aspect of the present invention, there is provided a system for reducing indoor noise of an engine room in which an engine is mounted, comprising: an RPM measuring unit for measuring the RPM of the engine; and an offset noise generator configured to generate an offset noise for canceling the engine noise of the engine based on the measured RPM measured by the RPM measuring part.

상기 상쇄 소음 생성부는, 상기 측정 알피엠을 미리 저장된 알피엠 별 상쇄 소음 데이터에 대입하여 상쇄 소음을 결정할 수 있다.The offset noise generator may determine the offset noise by substituting the measured RPM to the preset noise cancellation data for each RPM.

상기 엔진룸 실내 소음 저감 시스템은 상기 엔진룸의 실내 소음을 측정하는 실내 소음 측정부; 및 상기 상쇄 소음 생성부에서 상쇄 소음이 생성된 후, 상기 실내 소음 측정부에서 측정된 측정 소음이 설정 범위에 부합하는지 여부를 검증하고, 검증 결과에 따라 상기 알피엠 별 상쇄 소음 데이터를 수정하는 검증부를 더 포함할 수 있다.The engine room indoor noise reduction system includes: an indoor noise measuring unit for measuring the indoor noise of the engine room; and a verification unit configured to verify whether the measured noise measured by the indoor noise measurement unit meets a setting range after the offset noise is generated by the offset noise generator, and to correct the offset noise data for each RPM according to the verification result may include more.

상기 검증부는, 상기 실내 소음 측정부에서 측정된 측정 소음이 설정 범위에 부합하면, 상기 알피엠 별 상쇄 소음 데이터를 유지하고, 상기 실내 소음 측정부에서 측정된 측정 소음이 설정 범위에 부합하지 않으면, 테스트 상쇄 소음을 변경하면서 상기 실내 소음 측정부에서 측정된 측정 소음이 상기 설정 범위에 부합하는 상쇄 소음을 도출하고, 상기 도출된 상쇄 소음을 상기 알피엠 별 상쇄 소음 데이터에 적용하여 수정할 수 있다.If the measured noise measured by the indoor noise measuring unit meets the set range, the verification unit maintains the offset noise data for each RPM, and if the measured noise measured by the indoor noise measuring unit does not meet the set range, test While changing the offset noise, the measured noise measured by the indoor noise measuring unit may derive an offset noise that meets the set range, and apply the derived offset noise to the offset noise data for each RPM.

본 발명의 실시예에 따르면, 상쇄 소음 생성부가 엔진에서 발생된 엔진 소음을 상쇄시키는 상쇄 소음을 발생시킴으로써, 엔진룸의 실내 소음을 효과적으로 저감시킨다.According to an embodiment of the present invention, the offset noise generating unit generates the offset noise to cancel the engine noise generated by the engine, thereby effectively reducing the indoor noise of the engine room.

도 1은 본 발명의 일 실시예에 따른 엔진룸 실내 소음 저감 시스템을 나타내는 도면이다.
도 2는 본 발명의 일 실시예에 따른 검증부의 동작을 설명하기 위한 도면이다.1 is a view showing an engine room indoor noise reduction system according to an embodiment of the present invention.
2 is a diagram for explaining an operation of a verification unit according to an embodiment of the present invention.

본 발명은 다양한 변환을 가할 수 있고 여러 가지 실시예를 가질 수 있는 바, 특정 실시예들을 도면에 예시하고 상세한 설명에 상세하게 설명하고자 한다. 그러나, 이는 본 발명을 특정한 실시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변환, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다. 본 발명을 설명함에 있어서 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

이하, 본 발명의 실시예를 첨부도면을 참조하여 상세히 설명하기로 하며, 첨부 도면을 참조하여 설명함에 있어, 동일하거나 대응하는 구성 요소는 동일한 도면번호를 부여하고 이에 대한 중복되는 설명은 생략하기로 한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and in the description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals, and the overlapping description thereof will be omitted. do.

도 1은 본 발명의 일 실시예에 따른 엔진룸 실내 소음 저감 시스템을 나타내는 도면이다. 도 1을 참조하면, 본 실시예에 따른 엔진룸 실내 소음 저감 시스템(10)은 알피엠 측정부(100)와, 상쇄 소음 생성부(200)를 포함하고, 엔진이 탑재된 엔진룸의 실내 소음을 저감한다.1 is a view showing an engine room indoor noise reduction system according to an embodiment of the present invention. Referring to FIG. 1 , the engine room indoor noise reduction system 10 according to the present embodiment includes an RPM measuring unit 100 and an offset noise generating unit 200, and reduces the indoor noise of the engine room in which the engine is mounted. reduce

알피엠 측정부(100)는 엔진의 알피엠을 측정한다. 알피엠 측정부(100)는 공지된 알피엠 센서를 포함한다.The RPM measuring unit 100 measures the RPM of the engine. The RPM measuring unit 100 includes a known RPM sensor.

상쇄 소음 생성부(200)는 알피엠 측정부(100)에 의해 측정된 측정 알피엠을 기초로 엔진의 엔진 소음을 상쇄하는 상쇄 소음을 생성한다. 상쇄 소음 생성부(200)에서 생성된 상쇄 소음은 엔진에서 발생된 엔진 소음과 상쇄 간섭하여 엔진룸의 실내 소음을 효과적으로 저감시킨다. 상쇄 소음 생성부(200)에서 생성된 상쇄 소음은 예컨대 스피커(미도시)를 통해 출력될 수 있다.The canceling noise generating unit 200 generates an offsetting noise that cancels the engine noise of the engine based on the measured RPM measured by the RPM measuring unit 100 . The offset noise generated by the offset noise generating unit 200 cancels and interferes with the engine noise generated by the engine to effectively reduce the indoor noise of the engine room. The cancellation noise generated by the cancellation noise generator 200 may be output through, for example, a speaker (not shown).

본 실시예에서, 상쇄 소음 생성부(200)는 측정 알피엠을 미리 저장된 알피엠 별 상쇄 소음 데이터에 대입하여 상쇄 소음을 결정할 수 있다. 알피엠별 상쇄 소음 데이터는 저장부(300)에 저장될 수 있다.In the present embodiment, the offset noise generator 200 may determine the offset noise by substituting the measured RPMs into the previously stored offset noise data for each RPM. The offset noise data for each RPM may be stored in the storage unit 300 .

알피엠 별 상쇄 소음 데이터는 실험 또는 수치해석을 통해 알피엠별로 발생하는 엔진의 엔진 소음을 상쇄하기 위한 상쇄 소음을 정리한 데이터이다.The offset noise data for each RPM is data that summarizes the offset noise to cancel the engine noise of the engine generated by each RPM through experiments or numerical analysis.

상쇄 소음 생성부(200)는 알피엠 측정부(100)에서 측정된 측정 알피엠을 알피엠 별 상쇄 소음 데이터에 대입하여, 대응하는 상쇄 소음을 찾는다.The offset noise generator 200 substitutes the measured RPM measured by the RPM measuring part 100 into the offset noise data for each RPM to find a corresponding offset noise.

이와 같이 측정 알피엠을 미리 저장된 알피엠 별 상쇄 소음 데이터에 대입하여 상쇄 소음을 결정하는 경우, 엔진의 알피엠에 대응하여 신속히 상쇄 소음이 결정될 수 있고, 엔진룸의 실내 소음을 신속하게 저감시킬 수 잇다.In this way, when the offset noise is determined by substituting the measured RPM to the offset noise data for each RPM stored in advance, the offset noise can be quickly determined in response to the RPM of the engine, and the indoor noise of the engine room can be quickly reduced.

본 실시예에 따른 엔진룸 실내 소음 저감 시스템(10)은 실내 소음 측정부(400)와, 검증부(500)를 더 포함할 수 있다.The engine room indoor noise reduction system 10 according to the present embodiment may further include an indoor noise measurement unit 400 and a verification unit 500 .

실내 소음 측정부(400)는 엔진룸의 실내 소음을 측정한다. 실내 소음 측정부(400)는 공지된 소음 센서를 포함할 수 있다.The indoor noise measuring unit 400 measures the indoor noise of the engine room. The indoor noise measuring unit 400 may include a known noise sensor.

검증부(500)는 상쇄 소음 생성부(200)에서 상쇄 소음이 생성된 후, 실내 소음 측정부(400)에서 측정된 측정 소음이 설정 범위에 부합하는지 여부를 검증하고, 검증 결과에 따라 알피엠 별 상쇄 소음 데이터를 수정할 수 있다.After the offset noise is generated by the offset noise generator 200, the verification unit 500 verifies whether the measured noise measured by the indoor noise measurement unit 400 meets a set range, and according to the verification result, the You can edit the offset noise data.

도 2는 본 발명의 일 실시예에 따른 검증부의 동작을 설명하기 위한 도면이다. 이하, 도 1 및 도 2를 참조하여 검증부(500)의 동작을 구체적으로 설명한다.2 is a diagram for explaining an operation of a verification unit according to an embodiment of the present invention. Hereinafter, the operation of the verification unit 500 will be described in detail with reference to FIGS. 1 and 2 .

검증부(500)는 실내 소음 측정부(400)에서 측정된 측정 소음이 설정 범위(ex. 60db 이하)에 부합하면, 알피엠 별 상쇄 소음 데이터를 유지할 수 있다.When the measured noise measured by the indoor noise measuring unit 400 meets a set range (eg, 60 db or less), the verification unit 500 may maintain offset noise data for each RPM.

측정 소음이 설정 범위(ex. 60db 이하)에 부합하면, 기존 알피엠 별 상쇄 소음 데이터를 통해 결정된 상쇄 소음이 적절하고, 기존 알피엠 별 상쇄 소음 데이터가 유효하다고 볼 수 있다.If the measured noise meets the set range (ex. 60db or less), the offset noise determined through the existing offset noise data for each RPM is appropriate, and it can be considered that the offset noise data for each RPM is valid.

이 경우, 검증부(500)는 측정 소음이 설정 범위(ex. 60db 이하)에 부합하면 알피엠 별 상쇄 소음 데이터를 유지한다.In this case, the verification unit 500 maintains the offset noise data for each RPM when the measured noise meets the set range (ex. 60db or less).

검증부(500)는 실내 소음 측정부(400)에서 측정된 측정 소음이 설정 범위(ex. 60db 이하)에 부합하지 않으면, 테스트 상쇄 소음을 변경하면서 실내 소음 측정부(400)에서 측정된 측정 소음이 설정 범위(ex. 60db 이하)에 부합하는 상쇄 소음을 도출하고, 도출된 상쇄 소음을 알피엠 별 상쇄 소음 데이터에 적용하여 수정할 수 있다. 검증부(500)에서 생성되고 변경되는 테스트 상쇄 소음은 예컨대 스피커(미도시)를 통해 출력될 수 있다.If the measured noise measured by the indoor noise measuring unit 400 does not match the set range (ex. 60db or less), the verifying unit 500 changes the test offset noise and the measured noise measured by the indoor noise measuring unit 400 . The offset noise that meets this setting range (ex. 60db or less) can be derived, and the derived offset noise can be applied to the offset noise data for each RPM to be modified. The test cancellation noise generated and changed by the verification unit 500 may be output through, for example, a speaker (not shown).

측정 소음이 설정 범위(ex. 60db 이하)에 부합하지 않으면, 기존 알피엠 별 상쇄 소음 데이터를 통해 결정된 상쇄 소음이 적절하지 않고, 기존 알피엠 별 상쇄 소음 데이터가 유효하지 않다고 볼 수 있다.If the measured noise does not meet the set range (ex. 60db or less), the offset noise determined through the existing offset noise data for each RPM is not appropriate, and it can be considered that the existing offset noise data for each RPM is invalid.

이 경우, 검증부(500)는 테스트 상쇄 소음을 변경하면서 실내 소음 측정부(400)에서 측정된 측정 소음이 설정 범위(ex. 60db 이하)에 부합하는지를 검증하여, 측정된 소음이 설정 범위(ex. 60db 이하)에 부합하는 상쇄 소음을 도출한다.In this case, the verification unit 500 verifies whether the measured noise measured by the indoor noise measurement unit 400 meets the set range (ex. 60 db or less) while changing the test offset noise, and the measured noise is within the set range (ex. .60db or less) to derive an offsetting noise.

그리고 검증부(500)는 도출된 상쇄 소음을 알피엠 별 상쇄 소음 데이터에 적용하여 수정한다. 이때, 검증부(500)는 기존 알피엠 별 상쇄 소음 데이터 중 측정 알피엠에 대응하는 상쇄 소음의 기존값을 도출된 값으로 수정한다.And the verification unit 500 applies the derived offset noise to the offset noise data for each RPM and corrects it. At this time, the verification unit 500 corrects the existing value of the offset noise corresponding to the measured RPM among the existing offset noise data for each RPM to the derived value.

수정된 알피엠별 상쇄 소음 데이터는 저장부(300)에 저장되고, 추후 상쇄 소음 생성부(200)가 측정 알피엠에 대응하여 효과적인 상쇄 소음을 생성하기 위한 기초 자료로 사용된다.The corrected offset noise data for each RPM is stored in the storage unit 300 , and later the offset noise generator 200 is used as basic data for generating effective offset noise in response to the measured RPM.

이와 같이 실내 소음 측정부(400)와 검증부(500)를 포함하는 엔진룸 실내 소음 저감 시스템(10)은 상쇄 소음을 결정하기 위한 기초 자료인 알피엠 별 상쇄 소음 데이터를 효과적인 방향으로 업데이트하여 엔진룸 실내 소음을 효과적으로 저감시킬 수 있다.As described above, the engine room indoor noise reduction system 10 including the indoor noise measuring unit 400 and the verifying unit 500 updates the offset noise data for each RPM, which is the basic data for determining the offset noise, in an effective direction in the engine room. It can effectively reduce indoor noise.

이상, 본 발명의 실시예들에 대하여 설명하였으나, 해당 기술 분야에서 통상의 지식을 가진 자라면 특허청구범위에 기재된 본 발명의 사상으로부터 벗어나지 않는 범위 내에서, 구성 요소의 부가, 변경, 삭제 또는 추가 등에 의해 본 발명을 다양하게 수정 및 변경시킬 수 있을 것이며, 이 또한 본 발명의 권리범위 내에 포함된다고 할 것이다.In the above, although embodiments of the present invention have been described, those of ordinary skill in the art can add, change, delete or add components within the scope that does not depart from the spirit of the present invention described in the claims. The present invention may be variously modified and changed by such as, and it will be said that it is also included within the scope of the present invention.

10 : 엔진룸 실내 소음 저감 시스템 100 : 알피엠 측정부
200 : 상쇄 소음 생성부 300 : 저장부
400 : 실내 소음 측정부 500 : 검증부10: engine room indoor noise reduction system 100: RPM measuring unit
200: offset noise generation unit 300: storage unit
400: indoor noise measurement unit 500: verification unit

Claims (4)

엔진이 탑재된 엔진룸의 실내 소음을 저감하는 시스템으로서,
상기 엔진의 알피엠을 측정하는 알피엠 측정부; 및
상기 알피엠 측정부에 의해 측정된 측정 알피엠을 기초로 상기 엔진의 엔진 소음을 상쇄하는 상쇄 소음을 생성하는 상쇄 소음 생성부를 포함하는, 엔진룸 실내 소음 저감 시스템.As a system for reducing indoor noise of an engine room equipped with an engine,
an RPM measuring unit for measuring the RPM of the engine; and
and an offset noise generator configured to generate an offset noise for canceling the engine noise of the engine based on the measured RPM measured by the RPM measurement part. 제1항에 있어서,
상기 상쇄 소음 생성부는,
상기 측정 알피엠을 미리 저장된 알피엠 별 상쇄 소음 데이터에 대입하여 상쇄 소음을 결정하는, 엔진룸 실내 소음 저감 시스템.The method of claim 1,
The offset noise generating unit,
An engine room indoor noise reduction system for determining the offset noise by substituting the measured RPM to the offset noise data for each RPM stored in advance. 제2항에 있어서,
상기 엔진룸의 실내 소음을 측정하는 실내 소음 측정부; 및
상기 상쇄 소음 생성부에서 상쇄 소음이 생성된 후, 상기 실내 소음 측정부에서 측정된 측정 소음이 설정 범위에 부합하는지 여부를 검증하고, 검증 결과에 따라 상기 알피엠 별 상쇄 소음 데이터를 수정하는 검증부를 더 포함하는, 엔진룸 실내 소음 저감 시스템.3. The method of claim 2,
an indoor noise measuring unit for measuring the indoor noise of the engine room; and
After the offset noise is generated by the offset noise generation unit, a verification unit that verifies whether the measured noise measured by the indoor noise measurement unit meets a setting range, and corrects the offset noise data for each RPM according to the verification result further Including, engine room interior noise reduction system. 제3항에 있어서,
상기 검증부는,
상기 실내 소음 측정부에서 측정된 측정 소음이 설정 범위에 부합하면, 상기 알피엠 별 상쇄 소음 데이터를 유지하고,
상기 실내 소음 측정부에서 측정된 측정 소음이 설정 범위에 부합하지 않으면, 테스트 상쇄 소음을 변경하면서 상기 실내 소음 측정부에서 측정된 측정 소음이 상기 설정 범위에 부합하는 상쇄 소음을 도출하고, 상기 도출된 상쇄 소음을 상기 알피엠 별 상쇄 소음 데이터에 적용하여 수정하는, 엔진룸 실내 소음 저감 시스템.4. The method of claim 3,
The verification unit,
If the measured noise measured by the indoor noise measuring unit meets the set range, the offset noise data for each RPM is maintained,
If the measured noise measured by the indoor noise measuring unit does not meet the set range, the measured noise measured by the indoor noise measuring unit derives the offset noise that meets the set range while changing the test offset noise, and An engine room indoor noise reduction system that applies the offset noise to the offset noise data for each RPM.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3146023B2 (en) * 1991-07-02 2001-03-12 本田技研工業株式会社 Engine noise control device
EP1124218A1 (en) * 1999-08-20 2001-08-16 Matsushita Electric Industrial Co., Ltd. Noise reduction apparatus
US20130182865A1 (en) * 2011-12-30 2013-07-18 Agco Corporation Acoustic fault detection of mechanical systems with active noise cancellation
KR20160059043A (en) * 2014-11-17 2016-05-26 현대중공업 주식회사 system for reducing noise of construction equipment
KR20170128938A (en) * 2016-05-16 2017-11-24 현대자동차주식회사 An apparatus for controlling engine noise to reflect engine vibration and driving condition
US20190051283A1 (en) * 2017-08-14 2019-02-14 GM Global Technology Operations LLC Distant microphones for noise cancellation
KR20190088261A (en) * 2018-01-18 2019-07-26 동명대학교산학협력단 Method and System for Noise Reducing of Engine Room

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3146023B2 (en) * 1991-07-02 2001-03-12 本田技研工業株式会社 Engine noise control device
EP1124218A1 (en) * 1999-08-20 2001-08-16 Matsushita Electric Industrial Co., Ltd. Noise reduction apparatus
US7020288B1 (en) * 1999-08-20 2006-03-28 Matsushita Electric Industrial Co., Ltd. Noise reduction apparatus
US20130182865A1 (en) * 2011-12-30 2013-07-18 Agco Corporation Acoustic fault detection of mechanical systems with active noise cancellation
KR20160059043A (en) * 2014-11-17 2016-05-26 현대중공업 주식회사 system for reducing noise of construction equipment
KR20170128938A (en) * 2016-05-16 2017-11-24 현대자동차주식회사 An apparatus for controlling engine noise to reflect engine vibration and driving condition
US20190051283A1 (en) * 2017-08-14 2019-02-14 GM Global Technology Operations LLC Distant microphones for noise cancellation
KR20190088261A (en) * 2018-01-18 2019-07-26 동명대학교산학협력단 Method and System for Noise Reducing of Engine Room

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