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WO2014051199A1 - Method and device for reducing traffic noise using vehicle sensor - Google Patents

Method and device for reducing traffic noise using vehicle sensor Download PDF

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Publication number
WO2014051199A1
WO2014051199A1 PCT/KR2012/009594 KR2012009594W WO2014051199A1 WO 2014051199 A1 WO2014051199 A1 WO 2014051199A1 KR 2012009594 W KR2012009594 W KR 2012009594W WO 2014051199 A1 WO2014051199 A1 WO 2014051199A1
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WO
WIPO (PCT)
Prior art keywords
noise reduction
vehicle
reduction signal
detector
noise
Prior art date
Application number
PCT/KR2012/009594
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French (fr)
Korean (ko)
Inventor
문학룡
홍인기
한대철
Original Assignee
한국건설기술연구원
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Publication of WO2014051199A1 publication Critical patent/WO2014051199A1/en

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
    • 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
    • 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
    • G10K11/1781—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17821—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
    • G10K11/17823—Reference signals, e.g. ambient acoustic environment
    • 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
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • 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
    • G10K11/1787—General system configurations
    • G10K11/17873—General system configurations using a reference signal without an error signal, e.g. pure feedforward
    • 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
    • G10K2210/3047—Prediction, e.g. of future values of noise

Definitions

  • the present invention selects a noise reduction signal to be generated by using traffic information acquired through a vehicle detector already installed on the road, calculates the occurrence time of the noise reduction signal, and outputs the selected noise reduction signal at the corresponding occurrence time.
  • the present invention relates to a traffic noise reduction apparatus and method using a vehicle detector for reducing.
  • ANC active noise cancellation
  • the moving speed is different for each vehicle passing the road and moves at a high speed
  • the time to generate the anti-phase frequency sound according to the variables such as the vehicle model, the passing speed, and the passage lane is determined. Difficult to do
  • the noise when the noise is far from the time and the point where the noise occurs, the sound pressure is weakened and the level of the noise is different according to the speed of the vehicle, and appropriate information about this cannot be measured by the microphone.
  • the present invention has been made to solve the above problems of the prior art, by selecting the noise reduction signal to be generated by using the traffic information acquired through a vehicle detector installed on the road and calculating the occurrence time of the noise reduction signal
  • An object of the present invention is to provide an apparatus and method for reducing traffic noise using a vehicle detector capable of reducing traffic noise by outputting a selected noise reduction signal at a time of occurrence.
  • Traffic noise reduction apparatus using a vehicle detector is characterized in that the communication unit for receiving the vehicle detection information transmitted from the vehicle detector and the noise level and frequency characteristics based on the vehicle detection information received through the communication unit And a controller for determining a noise reduction signal and a generation time to be predicted to generate, and a noise reduction signal generator for generating the noise reduction signal at the generation time under the control of the controller.
  • the vehicle detector is characterized by consisting of a vehicle detection device, such as an image detector, radar detector, loop detector, geomagnetic detector, car type classifier, dynamic weighing device.
  • a vehicle detection device such as an image detector, radar detector, loop detector, geomagnetic detector, car type classifier, dynamic weighing device.
  • the communication unit may perform wired or wireless communication with the vehicle detector.
  • the vehicle detection information may include information such as a detection time, a vehicle speed, a detection lane, and a vehicle type.
  • the control unit may calculate a noise reduction signal generation time using the detection time and the vehicle speed.
  • the control unit may select a noise reduction signal to reduce traffic noise by predicting a noise level and a frequency characteristic based on the vehicle speed, a detection lane, and a vehicle type.
  • the noise reduction signal generator may further include a digital / analog converter for converting the noise reduction signal determined by the controller into an analog signal, and amplifying the noise reduction signal converted into an analog signal by the digital / analog converter.
  • An amplifier and a speaker for outputting the noise reduction signal amplified by the amplifier to the outside.
  • the noise reduction signal generator is characterized in that the front of the predetermined distance from the point where the vehicle detector is installed.
  • a method for reducing traffic noise using a vehicle detector comprising: acquiring vehicle detection information from a vehicle detector installed on a road, selecting a noise reduction signal based on the vehicle detection information, and reducing the selected noise Calculating a generation time of the signal, and outputting the selected noise reduction signal at the calculated generation time.
  • the noise reduction signal may be selected based on a vehicle speed, a vehicle type, and a detection lane of the vehicle detection information.
  • the occurrence time of the noise reduction signal is characterized in that it is calculated using the detection time and the vehicle speed of the vehicle detection information.
  • the selected noise reduction signal is characterized in that generated in front of a predetermined distance from the point where the vehicle detector is installed.
  • the present invention selects the noise reduction signal to be generated by predicting the noise level and frequency characteristics based on the passing time, passing lane, vehicle type, and speed of the vehicle provided by the vehicle detector already installed on the road, and calculating the occurrence time of the noise reduction signal. Traffic noise can be reduced by outputting the selected noise reduction signal at the time of occurrence.
  • the present invention can use the vehicle detectors already installed in major cities and highways with the spread of intelligent transportation system, thereby reducing the investment cost.
  • FIG. 1 is a view showing an installation state of a traffic noise reduction device using a vehicle sensor according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing a traffic noise reduction device using a vehicle sensor according to an embodiment of the present invention.
  • FIG. 3 is a flowchart illustrating a traffic noise reduction method using a vehicle sensor according to an exemplary embodiment of the present invention.
  • the present invention relates to a traffic noise reduction apparatus 20 for reducing traffic noise by using traffic data collected through a vehicle detector 10 installed on a road.
  • FIG. 1 is a view showing an installation state of a traffic noise reduction apparatus using a vehicle detector according to an embodiment of the present invention
  • Figure 2 is a block diagram showing a traffic noise reduction apparatus using a vehicle detector according to an embodiment of the present invention It is also.
  • a vehicle detector 10 is installed on a road, and a traffic noise reduction device is installed at a point away from the vehicle detector 10 at a predetermined distance.
  • the vehicle detector 10 collects data detected (measured) by each sensor, and transmits the collected data to the traffic noise reduction apparatus 20 through wired / wireless communication.
  • the traffic noise reduction device 20 selects a noise reduction signal to be generated by predicting a noise level and a frequency characteristic of the noise based on the detected data received from the vehicle detector 10, and generating the selected noise reduction signal. Determine the time of day
  • the vehicle detector 10 may include a detector 11 for detecting a vehicle traveling on a road, a collector 12 for collecting vehicle detection information acquired by the detector 11, and a vehicle collected by the collector 12.
  • a first communication unit 13 for transmitting the detection information.
  • the detection unit 11 detects the speed, the vehicle type, the passing lane, the detection time, and the like of the vehicle passing through the road.
  • the detector 11 includes a loop detector, an image detector, a radar detector, a geomagnetic detector, an automatic vehicle classification (AVC), a weight in motion (WIM), and the like.
  • the collection unit 12 collects detection data detected through the detection unit 11. At this time, the collecting unit 12 converts the detected data into a digital signal and outputs it.
  • the first communication unit 13 transmits the detection data collected by the collection unit 12 through wired or wireless communication.
  • the wired and wireless communication includes Bluetooth communication, infrared communication, high frequency communication, microwave communication, mobile communication, Wi-Fi (Wi-Fi), wireless communication such as over the air (OTA), and wired communication such as the Internet.
  • the first communication unit may use any one of the communication methods described above.
  • the traffic noise reduction apparatus 20 includes a second communication unit 21, a storage unit 22, a control unit 23, and a noise reduction signal generator 24.
  • the second communication unit 21 is a communication module for performing wired or wireless communication with the first communication unit 13 of the vehicle detector 10.
  • the second communication unit 21 receives the vehicle detection information detected by the detection unit 11 of the vehicle detector 10 through the first communication unit 13.
  • the storage unit 22 stores noise reduction signals according to the vehicle detection information, and stores a noise reduction signal selection algorithm programmed.
  • the noise reduction signal is for canceling traffic noise generated by a vehicle traveling on a road, and has a phase opposite to that of traffic noise.
  • the control unit 23 selects a noise reduction signal using the vehicle detection information received through the second communication unit 21 and calculates a noise reduction signal generation time.
  • the controller 23 selects a noise reduction signal to be generated by predicting a noise level and a noise frequency characteristic generated based on a vehicle speed, a vehicle type, and a detection lane.
  • the control unit 23 calculates a noise reduction signal generation time using the vehicle detection time and the vehicle speed.
  • the noise reduction signal generator 24 generates a noise reduction signal selected at an occurrence time calculated under the control of the controller 23.
  • the noise reduction signal generator 24 includes a digital to analog converter, an amplifier, and a speaker.
  • the digital-to-analog converter converts the selected noise reduction signal into a digital signal and outputs the analog signal.
  • the amplifier amplifies the noise reduction signal converted into an analog signal to a predetermined level and outputs it to the speaker, and the speaker outputs the amplified noise reduction signal output from the amplifier to the outside.
  • the noise reduction signal generator 24 is installed at a front point spaced apart from a point (detection point) at which the vehicle detector 10 is installed.
  • the present invention predicts the level and frequency characteristics of the traffic noise generated when the vehicle passes the point where the traffic noise reducing device 20 is installed by using the vehicle detection information detected by the vehicle detector 10.
  • the noise reduction signal capable of canceling the traffic noise is output to reduce the traffic noise.
  • FIG. 3 is a flowchart illustrating a traffic noise reduction method using a vehicle detector according to the present invention.
  • the control unit 23 of the traffic noise reduction apparatus 20 receives vehicle detection information transmitted from the first communication unit 11 of the vehicle detector 10 through the second communication unit 21. (S11).
  • the vehicle detection information includes a detection time, a vehicle speed and a vehicle type, and a detection lane.
  • the control unit 23 selects a noise reduction signal based on the vehicle detection information, and calculates a noise reduction signal generation time (S12).
  • the controller 23 calculates a noise reduction signal generation time using the detection time and the vehicle speed.
  • the controller 23 selects a noise reduction signal by predicting a noise level and a frequency characteristic based on the vehicle speed, the vehicle type, and the detection lane.
  • the controller 23 generates the selected noise reduction signal at the calculated occurrence time and outputs the signal to the road side through the speaker (S13). Traffic noise generated on the road is canceled by the noise reduction signal to reduce the noise.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)

Abstract

The present invention relates to a device for reducing traffic noise using a vehicle sensor. The device for reducing traffic noise using a vehicle sensor includes: a communication unit receiving vehicle detection information transmitted from the vehicle sensor; a controller for predicting noise level and frequency characteristics based on the vehicle detection information received via the communication unit, and determining a noise reduction signal to be generated and a generating time; and a noise reduction signal generating unit for generating the noise reduction signal at the generating time according to the control of the controller.

Description

차량검지기를 이용한 교통소음 저감장치 및 방법Traffic noise reduction device and method using vehicle detector
본 발명은 도로상에 기설치된 차량검지기를 통해 획득한 교통정보를 이용하여 발생시킬 소음저감신호를 선택하고 소음저감신호의 발생시각을 산출하여 해당 발생시각에 선택된 소음저감신호를 출력하여 교통소음을 저감시키는 차량검지기를 이용한 교통소음 저감장치 및 방법에 관한 것이다.The present invention selects a noise reduction signal to be generated by using traffic information acquired through a vehicle detector already installed on the road, calculates the occurrence time of the noise reduction signal, and outputs the selected noise reduction signal at the corresponding occurrence time. The present invention relates to a traffic noise reduction apparatus and method using a vehicle detector for reducing.
경제성장에 따라 국민 소득수준이 증가하면서 높은 증가율로 차량대수가 증가함에 따라 고속도로는 물론 국도나 지방도 등 주요간선도로는 24시각 교통이 끊이지 않아 도로변 도로교통소음으로 인한 피해가 심각한 수준이다.As the national income level increases due to economic growth, and the number of vehicles increases at a high rate of increase, the damage caused by road traffic noise on the roadside is severe because 24 hour traffic is not cut off on major highways such as highways, national roads and provincial roads.
이에 교통소음을 줄이기 위해 방음벽 및 저소음 노면을 설치하고, 능동소음저감(Active Noise Cancellation, ANC) 기술의 적용을 시도하고 있다. 능동소음저감 기술은 디지털 신호 처리(Digital Signal Processing) 기법을 이용하여 능동적으로 소음을 제어하는 기술로, 소음을 마이크로폰으로 수집하고 분석기를 통해 수집된 소음을 분석하여 소음원을 향해 역위상 주파수의 음향을 스피커를 통해 발생시킴으로써 소음을 저감한다.In order to reduce traffic noise, noise barriers and low noise roads are installed, and active noise cancellation (ANC) technology is being applied. Active noise reduction technology actively controls noise by using digital signal processing, which collects the noise through a microphone and analyzes the noise collected by the analyzer. Noise is generated through the speaker.
이러한 능동소음저감 기술을 적용한 종래기술에 따르면, 도로를 통과하는 차량마다 이동속도가 다르고, 빠른 속도로 이동하므로 차종 및 통과 속도, 통과 차로 등가 같은 변수에 따른 역위상 주파수 음향을 발생시키는 시각을 결정하기가 어렵다.According to the prior art applying the active noise reduction technology, since the moving speed is different for each vehicle passing the road and moves at a high speed, the time to generate the anti-phase frequency sound according to the variables such as the vehicle model, the passing speed, and the passage lane is determined. Difficult to do
이를 극복하기 위해 종래에는 마이크로폰으로 수집된 소음을 분석하고 처리하여 역위상 주파수 음향의 생성 소요 시각을 줄이기 위한 관련 알고리즘이 다수 있으나, 그 효용성은 시스템 구성 및 통신속도 등으로 인해 한계가 있어 실용성이 떨어진다.In order to overcome this problem, conventionally, there are many related algorithms for reducing the time required to generate the antiphase frequency sound by analyzing and processing the noise collected by the microphone, but its utility is limited due to the system configuration and communication speed, and thus is not practical. .
또한, 소음은 발생한 시각과 지점으로부터 멀어지면 음압이 약해지고 차량의 속도에 따른 소음의 수준이 상이하게 되는데, 이에 대한 적절한 정보를 마이크로폰으로 측정할 수 없다.In addition, when the noise is far from the time and the point where the noise occurs, the sound pressure is weakened and the level of the noise is different according to the speed of the vehicle, and appropriate information about this cannot be measured by the microphone.
본 발명은 상기한 종래기술의 문제점을 해결하기 위하여 안출된 것으로, 도로상에 기설치된 차량검지기를 통해 획득한 교통정보를 이용하여 발생시킬 소음저감신호를 선택하고 소음저감신호의 발생시각을 산출하여 해당 발생시각에 선택된 소음저감신호를 출력하여 교통소음을 저감시킬 수 있는 차량검지기를 이용한 교통소음 저감장치 및 방법을 제공하기 위한 것이다.The present invention has been made to solve the above problems of the prior art, by selecting the noise reduction signal to be generated by using the traffic information acquired through a vehicle detector installed on the road and calculating the occurrence time of the noise reduction signal An object of the present invention is to provide an apparatus and method for reducing traffic noise using a vehicle detector capable of reducing traffic noise by outputting a selected noise reduction signal at a time of occurrence.
본 발명의 일 실시예에 따른 차량검지기를 이용한 교통소음 저감장치는 차량검지기로부터 전송되는 차량검지정보들을 수신하는 통신부와, 상기 통신부를 통해 수신된 차량검지정보들에 근거하여 소음레벨 및 주파수 특성을 예측하여 발생시킬 소음저감신호와 발생시각을 결정하는 제어부와, 상기 제어부의 제어에 따라 상기 발생시각에 상기 소음저감신호를 발생시키는 소음저감신호 발생부를 포함하는 것을 특징으로 한다.Traffic noise reduction apparatus using a vehicle detector according to an embodiment of the present invention is characterized in that the communication unit for receiving the vehicle detection information transmitted from the vehicle detector and the noise level and frequency characteristics based on the vehicle detection information received through the communication unit And a controller for determining a noise reduction signal and a generation time to be predicted to generate, and a noise reduction signal generator for generating the noise reduction signal at the generation time under the control of the controller.
또한, 상기 차량검지기는 영상 검지기, 레이더 검지기, 루프 검지기, 지자기 검지기, 자동차종분류기, 동적중량측정기와 같은 차량검지장치로 구성되는 것을 특징으로 한다.In addition, the vehicle detector is characterized by consisting of a vehicle detection device, such as an image detector, radar detector, loop detector, geomagnetic detector, car type classifier, dynamic weighing device.
또한, 상기 통신부는 상기 차량검지기와 유무선통신을 수행하는 것을 특징으로 한다.The communication unit may perform wired or wireless communication with the vehicle detector.
또한, 상기 차량검지정보는 검지시각, 차량속도, 검지차로 및 차종과 같은 정보를 포함하는 것을 특징으로 한다.The vehicle detection information may include information such as a detection time, a vehicle speed, a detection lane, and a vehicle type.
또한, 상기 제어부는 상기 검지시각 및 차량속도를 이용하여 소음저감신호 발생시각을 연산하는 것을 특징으로 한다.The control unit may calculate a noise reduction signal generation time using the detection time and the vehicle speed.
또한, 상기 제어부는 상기 차량속도, 검지차로 및 차종에 근거하여 소음레벨 및 주파수 특성을 예측하여 교통소음을 저감시킬 소음저감신호를 선택하는 것을 특징으로 한다.The control unit may select a noise reduction signal to reduce traffic noise by predicting a noise level and a frequency characteristic based on the vehicle speed, a detection lane, and a vehicle type.
또한, 상기 소음저감신호 발생부는, 상기 제어부에 의해 결정된 소음저감신호를 디지털 신호에서 아날로그 신호로 변환하는 디지털/아날로그 변환기와, 상기 디지털/아날로그 변환기에 의해 아날로그 신호로 변환된 소음저감신호를 증폭시키는 증폭기와, 상기 증폭기에 의해 증폭된 소음저감신호를 외부로 출력하는 스피커를 포함하는 것을 특징으로 한다.The noise reduction signal generator may further include a digital / analog converter for converting the noise reduction signal determined by the controller into an analog signal, and amplifying the noise reduction signal converted into an analog signal by the digital / analog converter. An amplifier and a speaker for outputting the noise reduction signal amplified by the amplifier to the outside.
또한, 상기 소음저감신호 발생부는, 상기 차량검지기가 설치된 지점으로부터 일정 거리 떨어진 전방에 설치되는 것을 특징으로 한다.In addition, the noise reduction signal generator is characterized in that the front of the predetermined distance from the point where the vehicle detector is installed.
본 발명의 일 실시예에 따른 차량검지기를 이용한 교통소음 저감방법은 도로상에 설치된 차량검지기로부터 차량검지정보를 획득하는 단계와, 상기 차량검지정보에 근거하여 소음저감신호를 선택하며 그 선택된 소음저감신호의 발생시각을 산출하는 단계와, 상기 선택된 소음저감신호를 산출된 발생시각에 출력하는 단계를 포함하는 것을 특징으로 한다.In accordance with an aspect of the present invention, there is provided a method for reducing traffic noise using a vehicle detector, the method comprising: acquiring vehicle detection information from a vehicle detector installed on a road, selecting a noise reduction signal based on the vehicle detection information, and reducing the selected noise Calculating a generation time of the signal, and outputting the selected noise reduction signal at the calculated generation time.
또한, 상기 소음저감신호는 상기 차량검지정보의 차량속도, 차종, 검지차로에 근거하여 선택되는 것을 특징으로 한다.The noise reduction signal may be selected based on a vehicle speed, a vehicle type, and a detection lane of the vehicle detection information.
또한, 상기 소음저감신호의 발생시각은 상기 차량검지정보의 검지시각 및 차량속도를 이용하여 산출되는 것을 특징으로 한다.In addition, the occurrence time of the noise reduction signal is characterized in that it is calculated using the detection time and the vehicle speed of the vehicle detection information.
또한, 상기 선택된 소음저감신호는 상기 차량검지기가 설치된 지점으로부터 일정 거리 떨어진 전방에서 발생되는 것을 특징으로 한다.In addition, the selected noise reduction signal is characterized in that generated in front of a predetermined distance from the point where the vehicle detector is installed.
본 발명은 도로상에 기설치된 차량검지기에서 제공하는 차량의 통과시각, 통과차로, 차종, 속도를 토대로 소음레벨 및 주파수 특성을 예측하여 발생시킬 소음저감신호를 선택하고 소음저감신호 발생시각을 산출하여 해당 발생시각에 선택된 소음저감신호를 출력하여 교통소음을 저감시킬 수 있다.The present invention selects the noise reduction signal to be generated by predicting the noise level and frequency characteristics based on the passing time, passing lane, vehicle type, and speed of the vehicle provided by the vehicle detector already installed on the road, and calculating the occurrence time of the noise reduction signal. Traffic noise can be reduced by outputting the selected noise reduction signal at the time of occurrence.
또한, 본 발명은 지능형교통체계의 보급으로 주요도시 및 간선도로에 기설치된 차량검지기를 이용하므로, 투자비용을 절감할 수 있다.In addition, the present invention can use the vehicle detectors already installed in major cities and highways with the spread of intelligent transportation system, thereby reducing the investment cost.
도 1은 본 발명의 실시예에 따른 차량감지기를 이용한 교통소음 저감장치의 설치 상태를 도시한 도면.1 is a view showing an installation state of a traffic noise reduction device using a vehicle sensor according to an embodiment of the present invention.
도 2는 본 발명의 실시예에 따른 차량감지기를 이용한 교통소음 저감장치를 도시한 블록구성도.Figure 2 is a block diagram showing a traffic noise reduction device using a vehicle sensor according to an embodiment of the present invention.
도 3은 본 발명의 실시예에 따른 차량감지기를 이용한 교통소음 저감방법을 도시한 흐름도.3 is a flowchart illustrating a traffic noise reduction method using a vehicle sensor according to an exemplary embodiment of the present invention.
이하, 도면들을 참조하여 본 발명의 실시예를 상세하게 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
본 발명은 도로상에 기존에 설치된 차량검지기(10)를 통해 수집한 교통자료를 이용하여 교통소음을 저감하는 교통소음 저감장치(20)에 관한 것이다.The present invention relates to a traffic noise reduction apparatus 20 for reducing traffic noise by using traffic data collected through a vehicle detector 10 installed on a road.
도 1은 본 발명의 실시예에 따른 차량검지기를 이용한 교통소음 저감장치의 설치상태를 도시한 도면이고, 도 2는 본 발명의 실시예에 따른 차량검지기를 이용한 교통소음 저감장치를 도시한 블록구성도이다.1 is a view showing an installation state of a traffic noise reduction apparatus using a vehicle detector according to an embodiment of the present invention, Figure 2 is a block diagram showing a traffic noise reduction apparatus using a vehicle detector according to an embodiment of the present invention It is also.
도 1에 도시된 바와 같이, 도로상에 차량검지기(10)가 설치되고, 차량검지기(10)로부터 일정 거리 떨어진 전방 지점에 교통소음 저감장치가 설치된다. 상기 차량검지기(10)는 각 센서들에 의해 검출(측정)된 데이터를 수집하고, 그 수집된 데이터를 유무선 통신을 통해 상기 교통소음 저감장치(20)로 전송한다.As shown in FIG. 1, a vehicle detector 10 is installed on a road, and a traffic noise reduction device is installed at a point away from the vehicle detector 10 at a predetermined distance. The vehicle detector 10 collects data detected (measured) by each sensor, and transmits the collected data to the traffic noise reduction apparatus 20 through wired / wireless communication.
상기 교통소음 저감장치(20)는 상기 차량검지기(10)로부터 전달받은 검출된 데이터에 근거하여 소음레벨 및 소음의 주파수 특성을 예측하여 발생시킬 소음저감신호를 선택하고, 그 선택된 소음저감신호의 발생시각을 결정한다.The traffic noise reduction device 20 selects a noise reduction signal to be generated by predicting a noise level and a frequency characteristic of the noise based on the detected data received from the vehicle detector 10, and generating the selected noise reduction signal. Determine the time of day
차량검지기(10)는 도로를 통행하는 차량을 검지하는 검지부(11), 상기 검지부(11)에 획득된 차량검지정보를 수집하는 수집부(12), 상기 수집부(12)에 의해 수집된 차량검지정보를 전송하는 제1통신부(13)를 포함한다.The vehicle detector 10 may include a detector 11 for detecting a vehicle traveling on a road, a collector 12 for collecting vehicle detection information acquired by the detector 11, and a vehicle collected by the collector 12. A first communication unit 13 for transmitting the detection information.
검지부(11)는 도로상에 설치되어 통과하는 차량의 속도, 차종, 통과차로, 검지시각 등을 검출한다. 상기 검지부(11)는 루프 검지기, 영상 검지기, 레이더 검지기, 지자기 검지기, 차종분류장치(automatic vehicle classification, AVC), 동적중량측정기(weight in motion, WIM) 등으로 구성된다.The detection unit 11 detects the speed, the vehicle type, the passing lane, the detection time, and the like of the vehicle passing through the road. The detector 11 includes a loop detector, an image detector, a radar detector, a geomagnetic detector, an automatic vehicle classification (AVC), a weight in motion (WIM), and the like.
수집부(12)는 상기 검지부(11)를 통해 검출된 검출데이터를 수집한다. 이때, 수집부(12)는 상기 검출데이터를 디지털 신호로 변환하여 출력한다.The collection unit 12 collects detection data detected through the detection unit 11. At this time, the collecting unit 12 converts the detected data into a digital signal and outputs it.
제1통신부(13)는 상기 수집부(12)에 의해 수집된 검출데이터를 유무선 통신을 통해 전송한다. 상기 유무선 통신은 블루투스 통신, 적외선 통신, 고주파 통신, 마이크로파 통신, 이동통신, 와이파이(Wi-Fi), OTA(Over the Air)와 같은 무선통신 및 인터넷과 같은 유선통신이 있다. 상기 제1통신부는 상기한 통신방식 중 어느 하나의 통신방식을 이용할 수 있다.The first communication unit 13 transmits the detection data collected by the collection unit 12 through wired or wireless communication. The wired and wireless communication includes Bluetooth communication, infrared communication, high frequency communication, microwave communication, mobile communication, Wi-Fi (Wi-Fi), wireless communication such as over the air (OTA), and wired communication such as the Internet. The first communication unit may use any one of the communication methods described above.
교통소음 저감장치(20)는 제2통신부(21), 저장부(22), 제어부(23), 소음저감신호 발생부(24)를 포함한다.The traffic noise reduction apparatus 20 includes a second communication unit 21, a storage unit 22, a control unit 23, and a noise reduction signal generator 24.
제2통신부(21)는 차량검지기(10)의 제1통신부(13)와 유무선 통신을 수행하기 위한 통신모듈이다. 상기 제2통신부(21)는 상기 제1통신부(13)를 통해 상기 차량검지기(10)의 검지부(11)에 의해 검지된 차량검지정보를 수신한다.The second communication unit 21 is a communication module for performing wired or wireless communication with the first communication unit 13 of the vehicle detector 10. The second communication unit 21 receives the vehicle detection information detected by the detection unit 11 of the vehicle detector 10 through the first communication unit 13.
저장부(22)에는 차량검지정보에 따른 소음저감신호들이 저장되며, 소음저감신호 선택 알고리즘이 프로그램화되어 저장된다. 상기 소음저감신호는 도로를 주행하는 차량에 의해 발생되는 교통소음을 상쇄하기 위한 것으로, 교통소음의 위상과 반대되는 위상을 갖는다.The storage unit 22 stores noise reduction signals according to the vehicle detection information, and stores a noise reduction signal selection algorithm programmed. The noise reduction signal is for canceling traffic noise generated by a vehicle traveling on a road, and has a phase opposite to that of traffic noise.
제어부(23)는 상기 제2통신부(21)를 통해 수신한 차량검지정보를 이용하여 소음저감신호를 선택하고 소음저감신호 발생시각을 산출한다. 상기 제어부(23)는 차량속도 및 차종, 검지차로에 근거하여 발생되는 소음레벨 및 소음 주파수 특성을 예측하여 발생시킬 소음저감신호를 선택한다. 그리고, 상기 제어부(23)는 차량 검지시각 및 차량속도를 이용하여 소음저감신호 발생시각을 산출한다.The control unit 23 selects a noise reduction signal using the vehicle detection information received through the second communication unit 21 and calculates a noise reduction signal generation time. The controller 23 selects a noise reduction signal to be generated by predicting a noise level and a noise frequency characteristic generated based on a vehicle speed, a vehicle type, and a detection lane. The control unit 23 calculates a noise reduction signal generation time using the vehicle detection time and the vehicle speed.
소음저감신호 발생부(24)는 상기 제어부(23)의 제어에 따라 산출된 발생시각에 선택된 소음저감신호를 발생시킨다. 상기 소음저감신호 발생부(24)는 디지털/아날로그 변환기, 증폭기, 스피커로 구성된다.The noise reduction signal generator 24 generates a noise reduction signal selected at an occurrence time calculated under the control of the controller 23. The noise reduction signal generator 24 includes a digital to analog converter, an amplifier, and a speaker.
상기 디지털/아날로그 변환기는 상기 선택된 소음저감신호를 디지털 신호에서 아날로그 신호로 변환하여 출력한다. 상기 증폭기는 아날로그 신호로 변환된 소음저감신호를 소정 레벨로 증폭시켜 스피커로 출력하고, 스피커는 상기 증폭기로부터 출력되는 증폭된 소음저감신호를 외부로 출력한다.The digital-to-analog converter converts the selected noise reduction signal into a digital signal and outputs the analog signal. The amplifier amplifies the noise reduction signal converted into an analog signal to a predetermined level and outputs it to the speaker, and the speaker outputs the amplified noise reduction signal output from the amplifier to the outside.
상기 소음저감신호 발생부(24)는 상기 차량검지기(10)가 설치된 지점(검지 지점)으로부터 일정 거리 이격되게 전방 지점에 설치된다. The noise reduction signal generator 24 is installed at a front point spaced apart from a point (detection point) at which the vehicle detector 10 is installed.
이와 같이, 본 발명은 차량검지기(10)에 의해 검출된 차량검지정보를 이용하여 차량이 교통소음 저감장치(20)가 설치된 지점을 통과할 때 발생되는 교통소음의 레벨 및 주파수 특성을 예측하여 해당 교통소음을 상쇄시킬 수 있는 소음저감신호를 차량이 교통소음 저감장치(20)가 설치된 지점을 통과할 때 출력하여 교통소음을 저감한다.As described above, the present invention predicts the level and frequency characteristics of the traffic noise generated when the vehicle passes the point where the traffic noise reducing device 20 is installed by using the vehicle detection information detected by the vehicle detector 10. When the vehicle passes the point where the traffic noise reduction device 20 is installed, the noise reduction signal capable of canceling the traffic noise is output to reduce the traffic noise.
도 3은 본 발명에 따른 차량검지기를 이용한 교통소음 저감방법을 도시한 흐름도이다.3 is a flowchart illustrating a traffic noise reduction method using a vehicle detector according to the present invention.
도 3에 도시된 바와 같이, 교통소음 저감장치(20)의 제어부(23)는 제2통신부(21)를 통해 차량검지기(10)의 제1통신부(11)로부터 전송되는 차량검지정보를 수신한다(S11). 상기 차량검지정보는 검지시각, 차량속도 및 차종, 검지차로를 포함한다.As shown in FIG. 3, the control unit 23 of the traffic noise reduction apparatus 20 receives vehicle detection information transmitted from the first communication unit 11 of the vehicle detector 10 through the second communication unit 21. (S11). The vehicle detection information includes a detection time, a vehicle speed and a vehicle type, and a detection lane.
상기 제어부(23)는 상기 차량검지정보를 토대로 소음저감신호를 선택하고, 소음저감신호 발생시각을 산출한다(S12). 여기서, 제어부(23)는 상기 검지시각 및 차량속도를 이용하여 소음저감신호 발생시각을 산출한다. 그리고, 제어부(23)는 상기 차량속도, 차종, 검지차로에 근거하여 소음레벨 및 주파수 특성을 예측하여 소음저감신호를 선택한다.The control unit 23 selects a noise reduction signal based on the vehicle detection information, and calculates a noise reduction signal generation time (S12). Here, the controller 23 calculates a noise reduction signal generation time using the detection time and the vehicle speed. The controller 23 selects a noise reduction signal by predicting a noise level and a frequency characteristic based on the vehicle speed, the vehicle type, and the detection lane.
이후, 제어부(23)는 산출된 발생시각에 선택된 소음저감신호를 발생시켜 스피커를 통해 도로측으로 출력한다(S13). 상기 소음저감신호에 의해 도로상에서 발생되는 교통소음이 상쇄되어 소음을 저감시킬 수 있다.Thereafter, the controller 23 generates the selected noise reduction signal at the calculated occurrence time and outputs the signal to the road side through the speaker (S13). Traffic noise generated on the road is canceled by the noise reduction signal to reduce the noise.
본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서 본 발명의 기술적 보호범위는 특허청구범위에 의해서 정하여져야 할 것이다. Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. Will understand. Therefore, the technical protection scope of the present invention will be defined by the claims.

Claims (12)

  1. 차량검지기로부터 전송되는 차량검지정보들을 수신하는 통신부와,A communication unit for receiving vehicle detection information transmitted from the vehicle detector;
    상기 통신부를 통해 수신된 차량검지정보들에 근거하여 소음레벨 및 주파수 특성을 예측하여 발생시킬 소음저감신호와 발생시각을 결정하는 제어부와,A control unit for determining a noise reduction signal and an occurrence time to be generated by predicting a noise level and a frequency characteristic based on vehicle detection information received through the communication unit;
    상기 제어부의 제어에 따라 상기 발생시각에 상기 소음저감신호를 발생시키는 소음저감신호 발생부를 포함하는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감장치.And a noise reduction signal generator for generating the noise reduction signal at the occurrence time under the control of the control unit.
  2. 제1항에 있어서,The method of claim 1,
    상기 차량검지기는 영상 검지기, 레이더 검지기, 루프 검지기, 지자기 검지기, 자동차종분류기, 동적중량측정기와 같은 차량검지장치로 구성되는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감장치.The vehicle detector is a traffic noise reduction device using a vehicle detector, characterized in that composed of a vehicle detector, such as an image detector, radar detector, loop detector, geomagnetic detector, car type classifier, dynamic weighing device.
  3. 제1항에 있어서,The method of claim 1,
    상기 통신부는 상기 차량검지기와 유무선통신을 수행하는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감장치.The communication unit reduces traffic noise using the vehicle detector, characterized in that for performing wired and wireless communication with the vehicle detector.
  4. 제1항에 있어서,The method of claim 1,
    상기 차량검지정보는 검지시각, 차량속도, 검지차로 및 차종과 같은 정보를 포함하는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감장치.The vehicle detection information is a noise reduction device using a vehicle detector, characterized in that it includes information such as detection time, vehicle speed, detection lane and vehicle type.
  5. 제4항에 있어서,The method of claim 4, wherein
    상기 제어부는 상기 검지시각 및 차량속도를 이용하여 소음저감신호 발생시각을 연산하는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감장치.The control unit is a noise reduction device using a vehicle detector, characterized in that for calculating the noise reduction signal generation time using the detection time and the vehicle speed.
  6. 제4항에 있어서,The method of claim 4, wherein
    상기 제어부는 상기 차량속도, 검지차로 및 차종에 근거하여 소음레벨 및 주파수 특성을 예측하여 교통소음을 저감시킬 소음저감신호를 선택하는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감장치.And the control unit selects a noise reduction signal to reduce traffic noise by predicting a noise level and a frequency characteristic based on the vehicle speed, a detection lane, and a vehicle type.
  7. 제1항에 있어서,The method of claim 1,
    상기 소음저감신호 발생부는,The noise reduction signal generator,
    상기 제어부에 의해 결정된 소음저감신호를 디지털 신호에서 아날로그 신호로 변환하는 디지털/아날로그 변환기와,A digital / analog converter for converting the noise reduction signal determined by the controller into a digital signal and an analog signal;
    상기 디지털/아날로그 변환기에 의해 아날로그 신호로 변환된 소음저감신호를 증폭시키는 증폭기와,An amplifier for amplifying the noise reduction signal converted into an analog signal by the digital / analog converter;
    상기 증폭기에 의해 증폭된 소음저감신호를 외부로 출력하는 스피커를 포함하는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감장치.Traffic noise reduction device using a vehicle detector, characterized in that it comprises a speaker for outputting the noise reduction signal amplified by the amplifier to the outside.
  8. 제1항에 있어서,The method of claim 1,
    상기 소음저감신호 발생부는,The noise reduction signal generator,
    상기 차량검지기가 설치된 지점으로부터 일정 거리 떨어진 전방에 설치되는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감장치.Traffic noise reduction device using a vehicle detector, characterized in that the front of the vehicle detector is installed in a predetermined distance away from the installation point.
  9. 도로상에 설치된 차량검지기로부터 차량검지정보를 획득하는 단계와,Obtaining vehicle detection information from a vehicle detector installed on a road;
    상기 차량검지정보에 근거하여 소음저감신호를 선택하며 그 선택된 소음저감신호의 발생시각을 산출하는 단계와,Selecting a noise reduction signal based on the vehicle detection information and calculating an occurrence time of the selected noise reduction signal;
    상기 선택된 소음저감신호를 산출된 발생시각에 출력하는 단계를 포함하는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감방법.And outputting the selected noise reduction signal at a calculated occurrence time.
  10. 제9항에 있어서,The method of claim 9,
    상기 소음저감신호는 상기 차량검지정보의 차량속도, 차종, 검지차로에 근거하여 선택되는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감방법.The noise reduction signal is selected based on a vehicle speed, a vehicle type, and a detection lane of the vehicle detection information.
  11. 제9항에 있어서,The method of claim 9,
    상기 소음저감신호의 발생시각은 상기 차량검지정보의 검지시각 및 차량속도를 이용하여 산출되는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감방법.The generation time of the noise reduction signal is a noise reduction method using a vehicle detector, characterized in that calculated using the detection time and the vehicle speed of the vehicle detection information.
  12. 제9항에 있어서,The method of claim 9,
    상기 선택된 소음저감신호는 상기 차량검지기가 설치된 지점으로부터 일정 거리 떨어진 전방에서 발생되는 것을 특징으로 하는 차량검지기를 이용한 교통소음 저감방법.And the selected noise reduction signal is generated in front of a predetermined distance from a point at which the vehicle detector is installed.
PCT/KR2012/009594 2012-09-28 2012-11-14 Method and device for reducing traffic noise using vehicle sensor WO2014051199A1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105242271A (en) * 2014-07-03 2016-01-13 通用汽车环球科技运作有限责任公司 Object classification for vehicle radar systems
KR101671223B1 (en) * 2015-10-08 2016-11-01 한국철도기술연구원 Real-time noise analyzing system and a method for analyzing a real-time noise using the same
CN110867082A (en) * 2019-10-30 2020-03-06 中国科学院自动化研究所南京人工智能芯片创新研究院 System for detecting whistle vehicles in no-sounding road section
CN112878221A (en) * 2021-03-01 2021-06-01 刘范德 Noise device falls in road and bridge
CN113924616A (en) * 2019-03-29 2022-01-11 伯斯有限公司 System and method for detecting divergence in adaptive systems

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111696367B (en) * 2020-06-11 2022-06-07 西安电子科技大学 Multi-geomagnetic sensor speed measurement system and speed measurement method
CN113622332B (en) * 2021-09-17 2023-12-29 阿贝龙(北京)智能科技有限公司 Vibration and noise reduction method based on overhead traffic flow howling outside building

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06186986A (en) * 1992-07-04 1994-07-08 Blaupunkt Werke Gmbh Method and circuit for masking of running noise
KR20080107820A (en) * 2007-06-08 2008-12-11 레인보우스케이프주식회사 Roadside noise reduction device and method using frequency cancellation
KR100953211B1 (en) * 2009-10-08 2010-04-15 차상곤 Noise reducing apparatus
KR20110133361A (en) * 2010-06-04 2011-12-12 주식회사 국원토건 Road noise reduction device and method using frequency cancellation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06186986A (en) * 1992-07-04 1994-07-08 Blaupunkt Werke Gmbh Method and circuit for masking of running noise
KR20080107820A (en) * 2007-06-08 2008-12-11 레인보우스케이프주식회사 Roadside noise reduction device and method using frequency cancellation
KR100953211B1 (en) * 2009-10-08 2010-04-15 차상곤 Noise reducing apparatus
KR20110133361A (en) * 2010-06-04 2011-12-12 주식회사 국원토건 Road noise reduction device and method using frequency cancellation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105242271A (en) * 2014-07-03 2016-01-13 通用汽车环球科技运作有限责任公司 Object classification for vehicle radar systems
US9664779B2 (en) 2014-07-03 2017-05-30 GM Global Technology Operations LLC Object classification for vehicle radar systems
KR101671223B1 (en) * 2015-10-08 2016-11-01 한국철도기술연구원 Real-time noise analyzing system and a method for analyzing a real-time noise using the same
CN113924616A (en) * 2019-03-29 2022-01-11 伯斯有限公司 System and method for detecting divergence in adaptive systems
CN110867082A (en) * 2019-10-30 2020-03-06 中国科学院自动化研究所南京人工智能芯片创新研究院 System for detecting whistle vehicles in no-sounding road section
CN112878221A (en) * 2021-03-01 2021-06-01 刘范德 Noise device falls in road and bridge

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