KR970004297A - Volume control method and device of car audio - Google Patents

Volume control method and device of car audio Download PDF

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Publication number
KR970004297A
KR970004297A KR1019950018337A KR19950018337A KR970004297A KR 970004297 A KR970004297 A KR 970004297A KR 1019950018337 A KR1019950018337 A KR 1019950018337A KR 19950018337 A KR19950018337 A KR 19950018337A KR 970004297 A KR970004297 A KR 970004297A
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KR
South Korea
Prior art keywords
car audio
ratio
vehicle
volume
current
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Application number
KR1019950018337A
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Korean (ko)
Inventor
백종철
Original Assignee
김주용
현대전자산업 주식회사
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Application filed by 김주용, 현대전자산업 주식회사 filed Critical 김주용
Priority to KR1019950018337A priority Critical patent/KR970004297A/en
Publication of KR970004297A publication Critical patent/KR970004297A/en

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Abstract

본 발명의 카 오디오의 음량 조절방법 및 조절장치는 카 오디오의 출력 음량을 차량의 주행속도에 따라 자동으로 가변시키는 것이다.The volume control method and control device of the car audio of the present invention is to automatically change the output volume of the car audio according to the running speed of the vehicle.

본 발명은 차량의 주행속도에 따라 카 오디오의 출력음량을 자동으로 조절하여 차량의 주행속도에 관계없이 카 오디오의 출력신호를 항상 적정한 크기로 청취할 수 있도록 하는 것으로서 운전자가 차량을 운전하면서 미리 설정한 출력음량의 크기를 신호대 잡음비로 설정하여 두고, 차량의 주행시 현재 출력하는 카 오디오의 출력음량과 차량의 주행속도에 따른 S/N비를 검출하며, 검출한 S/N비와 미리 설정한 S/N비를 비교하여 비교결과에 따라 카 오디오의 출력음량을 자동으로 조절한다.The present invention automatically adjusts the output volume of the car audio according to the driving speed of the vehicle so that the output signal of the car audio can always be heard at an appropriate size regardless of the driving speed of the vehicle. Set the output volume level as the signal-to-noise ratio, detect the car audio output volume and the S / N ratio according to the vehicle's driving speed when the vehicle is running, and detect the detected S / N ratio and the preset S. Compare the / N ratio and automatically adjust the car audio output volume according to the comparison result.

그러므로 본 발명에 의하면, 차량의 주행속도에 따라 운전자가 일일이 카 오디오의 출력음량을 조절할 필요없이 항상 적정한 크기로 카 오디오의 출력신호를 청취할 수 있고, 운전자가 차량의 안전운전에 보다 많은 신경을 쓸 수 있어 안전사고의 발생을 방지할 수 있다.Therefore, according to the present invention, the driver can always listen to the output signal of the car audio at an appropriate size without having to adjust the output volume of the car audio according to the driving speed of the vehicle, and the driver pays more attention to the safe driving of the vehicle. It can be used to prevent the occurrence of safety accidents.

Description

카 오디오의 음량 조절방법 및 조절장치Volume control method and device of car audio

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 음량 조절장치를 보인 회로도, 제2도는 본 발명의 음량 조절방법에 의한 마이크로 프로세서의 동작을 보인 신호 흐름도.1 is a circuit diagram showing a volume control device of the present invention, Figure 2 is a signal flow diagram showing the operation of the microprocessor according to the volume control method of the present invention.

Claims (4)

카오디오의 전원 온시 현재 카 오디오 볼륨조절의 자동모드가 설정되어 있는 지를 판별하는 제1과정과, 상기 제1과정에서 자동모드의 설정시 차량의 현재 소음값 및 카 오디오의 출력레벨을 입력하여 S/N비를 계산하는 제2과정과, 상기 제2과정에서 계산한 현재 S/N비와 미리 설정한 S/N비를 비교하고 비교결과 현재 S/N비〈설정 S/N비일 경우에 카 오디오의 출력음량을 증가시키고 현재 S/N비〉설정 S/N비일 경우에 카 오디오의 출력음량을 감소시키고 현재 S/N비=설정 S/N비일 경우에 카 오디오의 출력음량을 현재의 상태로 유지시키는 제3과정으로 제어됨을 특징으로 하는 카 오디오의 음량 조절방법.A first step of determining whether the current mode of the car audio volume control is set when the power of the car audio is turned on, and inputting the current noise value of the vehicle and the output level of the car audio when the automatic mode is set in the first step, The second process of calculating the / N ratio and the current S / N ratio calculated in the second process and the predetermined S / N ratio is compared and the comparison result is the current S / N ratio < Increases the audio output volume and decreases the car audio output volume when the current S / N ratio> is set to S / N ratio, and outputs the car audio output volume when the current S / N ratio = set S / N ratio. Volume control method of the car audio, characterized in that controlled by the third process to maintain. 제1항에 있어서, 제2과정의 소음값은 차량의 주행속도신호인 것을 특징으로 하는 카 오디오의 음량 조절 방법.The method of claim 1, wherein the noise value of the second process is a driving speed signal of the vehicle. 제1항에 있어서, 제2과정의 소음값은 차량 주변의 소음을 마이크로 입력한 것임을 특징으로 하는 카 오디오의 음량 조절방법.The method of claim 1, wherein the noise value of the second process is a microphone input of noise around a vehicle. 차량의 주행 속도신호를 파형 정형하여 입력하는 파형 정형부(1)와, 카 오디오의 볼륨(2)을 조절함에 따라 가변되는 출력음량을 파형정형하여 입력하는 파형 정형부(3)와, 볼륨조절의 자동모드를 설정하는 모드설정 스위치(SW)와, 상기 파형 정형부(1)(3)의 출력신호를 입력하여 현재 S/N비를 계산하고 이를 미리 설정된 S/N비와 비교하여 비교 결과에 따라 상기 볼륨(2)을 조절하는 마이크로 프로세서(4)로 구성됨을 특징으로 하는 카 오디오의 음량 조절장치.Waveform shaping section 1 for waveform shaping and input of the driving speed signal of the vehicle, Wave shaping section 3 for shaping and inputting the output volume which is varied by adjusting volume of car audio 2, Volume control A mode setting switch (SW) for setting the automatic mode of the input signal and the output signal of the waveform shaping unit (1) (3) to calculate the current S / N ratio and compare it with a preset S / N ratio to compare the result. Volume control device for car audio, characterized in that consisting of a microprocessor (4) for adjusting the volume (2) according to. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950018337A 1995-06-29 1995-06-29 Volume control method and device of car audio KR970004297A (en)

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KR1019950018337A KR970004297A (en) 1995-06-29 1995-06-29 Volume control method and device of car audio

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KR1019950018337A KR970004297A (en) 1995-06-29 1995-06-29 Volume control method and device of car audio

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980082776A (en) * 1997-05-09 1998-12-05 윤종용 Noise adaptive volume control device and method in car audio system
KR100804497B1 (en) * 2006-11-23 2008-02-20 주식회사 현대오토넷 Speed pulse stabilization apparatus at auto volume control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980082776A (en) * 1997-05-09 1998-12-05 윤종용 Noise adaptive volume control device and method in car audio system
KR100804497B1 (en) * 2006-11-23 2008-02-20 주식회사 현대오토넷 Speed pulse stabilization apparatus at auto volume control system

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