KR20200114351A - Vehicle lamp brightness control device using camera - Google Patents

Vehicle lamp brightness control device using camera Download PDF

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KR20200114351A
KR20200114351A KR1020190035965A KR20190035965A KR20200114351A KR 20200114351 A KR20200114351 A KR 20200114351A KR 1020190035965 A KR1020190035965 A KR 1020190035965A KR 20190035965 A KR20190035965 A KR 20190035965A KR 20200114351 A KR20200114351 A KR 20200114351A
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South Korea
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brightness
headlamp
lamp
control device
camera
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KR1020190035965A
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Korean (ko)
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KR102171949B1 (en
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이재원
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쌍용자동차 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0017—Devices integrating an element dedicated to another function
    • B60Q1/0023—Devices integrating an element dedicated to another function the element being a sensor, e.g. distance sensor, camera
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0076—Switches therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/16—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger operated by remote control, i.e. initiating means not mounted on vehicle

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

The present invention relates to a vehicle lamp brightness control device using a camera which uses a camera for distance detection for an advanced emergency braking system (AEBS) provided in a vehicle as default without using a separate detection sensor to detect front illumination, and uses the front illumination to automatically adjust the brightness of a lamp. The vehicle lamp brightness control device using a camera comprises: a lamp switch to select a lamp to be turned on; an advanced emergency braking system (AEBS) to detect front illumination; an electronic control device to analyze an image photographed from the advanced emergency braking system to calculate brightness, and generate a headlamp brightness adjustment control signal in accordance with illumination based on the calculated brightness; and a voltage adjustment module to extract a brightness adjustment value of a headlamp corresponding to the headlamp brightness adjustment control signal generated by the electronic control device from an internal memory if a headlamp switch of the lamp switch is turned on, and output the extracted headlamp brightness adjustment value to automatically adjust the brightness of the headlamp.

Description

카메라를 이용한 차량 램프 밝기제어장치{Vehicle lamp brightness control device using camera}Vehicle lamp brightness control device using camera

본 발명은 카메라를 이용한 차량 램프(Lamp) 밝기제어에 관한 것으로, 특히 별도의 감지 센서를 이용하지 않고 차량에 기본적으로 구비된 자동긴급제동장치(Advanced Emergency Braking System, AEBS)를 위한 거리 감지용 카메라를 이용하여 전방 조도를 감지하고, 이를 이용하여 램프의 밝기를 자동으로 조절할 수 있도록 한 카메라를 이용한 차량 램프 밝기제어장치에 관한 것이다.The present invention relates to a vehicle lamp brightness control using a camera, and in particular, a distance sensing camera for an advanced emergency braking system (AEBS) basically provided in a vehicle without using a separate detection sensor The present invention relates to a vehicle lamp brightness control apparatus using a camera that detects the front illumination by using and automatically adjusts the brightness of the lamp using this.

차량에는 야간 주행 시 또는 비/눈 등으로 인해 시야 확보가 어려운 주간 주행 시에 차량 주변에 위치한 대상물을 운전자가 용이하게 확인하도록 하기 위해 램프(특히, 전조등)가 구비된다. 이러한 램프는 야간은 물론 짙은 안개 구간을 주행할 때에도 운전자의 시야를 확보하기 위해서 사용된다.Vehicles are equipped with lamps (in particular, headlights) to allow the driver to easily check objects located around the vehicle during night driving or during daytime driving where visibility is difficult due to rain/snow. These lamps are used to secure the driver's vision even when driving at night as well as in dense fog.

램프는 운전 환경에 따라 운전자가 수동 조작을 하여 점등 또는 소등을 한다.The lamp is turned on or off by the driver manually manipulating the lamp according to the driving environment.

도 1은 일반적인 차량에 적용된 램프 제어 장치의 구성도로서, 점등할 램프를 선택하기 위한 램프 스위치(10), 상기 램프 스위치(10)에 의해 선택된 램프의 점등을 위한 점등 전압을 출력하는 전압 조정 모듈(20), 상기 전압 조정 모듈(20)에서 발생하는 점등 전압에 따라 점등이 이루어지는 헤드램프(31)/콤비네이션 램프(32)/안개램프(33)를 포함한다.1 is a configuration diagram of a lamp control device applied to a general vehicle, a lamp switch 10 for selecting a lamp to be lit, and a voltage adjusting module outputting a lighting voltage for lighting a lamp selected by the lamp switch 10 (20), and a head lamp 31 / combination lamp 32 / fog lamp 33 that is lit according to the lighting voltage generated by the voltage adjustment module 20.

이러한 일반적인 차량에 적용된 램프 제어 장치는, 운전자가 점등한 램프를 램프 스위치(10)를 통해 선택하면, 전압 조정 모듈(20)은 선택된 램프를 인지하고, 해당 램프를 점등하기 위한 램프 점등 전압(13.5V)을 출력한다. 예컨대, 운전자가 헤드램프 스위치를 온 상태로 조작하면, 전압 조정 모듈(20)은 이를 인지하고, 헤드램프(31)를 점등하기 위한 13.5V의 점등 전압을 헤드램프(31)로 출력하여, 헤드램프(31)를 점등시킨다. 여기서 운전자가 콤비네이션 램프를 선택하거나 안개 램프를 선택한 경우에도, 동일한 점등 전압(13.5V)이 해당 램프로 출력되어, 해당 램프를 점등시키게 된다.In the lamp control device applied to such a general vehicle, when the driver selects a lighted lamp through the lamp switch 10, the voltage adjustment module 20 recognizes the selected lamp, and the lamp lighting voltage (13.5) for lighting the lamp. V) is output. For example, when the driver operates the headlamp switch in the on state, the voltage adjustment module 20 recognizes this and outputs a lighting voltage of 13.5V for lighting the headlamp 31 to the headlamp 31, The lamp 31 is turned on. Here, even when the driver selects a combination lamp or a fog lamp, the same lighting voltage (13.5V) is output to the lamp, and the lamp is turned on.

이후, 사용자가 상기 램프 스위치(10)를 통해 점등한 램프의 스위치를 오프하게 되면, 전압 조정 모듈(20)은 점등시킨 램프의 점등 전압을 오프시켜, 해당 램프를 소등시키게 된다.Thereafter, when the user turns off the switch of the lamp turned on through the lamp switch 10, the voltage adjustment module 20 turns off the lighting voltage of the turned on lamp and turns off the corresponding lamp.

이와 같이 일반적인 차량의 램프 제어장치는 운전자의 수동 조작에 의해 점등 또는 소등이 이루어지며, 이러한 조작은 운전에 방해될 수 있으며, 운전자에게 불편함을 주기도 한다.As described above, the lamp control device of a general vehicle is turned on or turned off by a driver's manual operation, and this operation may interfere with driving and may cause inconvenience to the driver.

따라서 근래에는 이러한 수동 조작에 따른 불편함을 해소하기 위해서 램프를 운전 환경에 따라 자동으로 점등 또는 소등시키는 자동 제어장치가 적용되고 있다.Therefore, in recent years, in order to solve the inconvenience caused by such manual operation, an automatic control device for automatically turning on or off the lamp according to the driving environment has been applied.

차량에 적용된 램프 자동 제어장치는 조도 센서를 이용하여 조도를 감지하고, 감지한 조도에 따라 낮과 밤을 구분하고, 밤의 상황에서 전조등을 자동으로 켜고, 낮의 상황에서는 자동으로 전조등을 끄게 된다.The automatic lamp control device applied to the vehicle detects the illuminance using an illuminance sensor, divides day and night according to the detected illuminance, automatically turns on the headlight in the night situation, and turns off the headlight automatically in the daytime situation. .

한편, 차량에서 램프를 자동으로 제어하기 위한 종래의 기술이 하기의 <특허문헌 1 > 내지 <특허문헌 2> 에 개시되어 있다.On the other hand, a conventional technique for automatically controlling a lamp in a vehicle is disclosed in <Patent Document 1> to <Patent Document 2> below.

<특허문헌 1> 에 개시된 종래기술은 주행지역의 지리 정보 및 날씨 정보 중 적어도 어느 하나를 수집하는 운행정보 수집부, 지리 정보 및 날씨 정보 중 적어도 어느 하나를 이용하여 차량 주행지역의 안개 존재 여부를 판단하는 안개지역 판단부, 디스플레이부, 차량의 전방 영상을 촬영하여 디스플레이부에 출력하는 카메라부, 차량에 설치되어 소정의 광원을 조사하는 차량 램프부, 카메라부와 차량 램프부를 제어하는 제어부를 포함하고, 차량의 주행지역의 안개에 관한 날씨 정보에 근거하여 카메라부 및 차량 램프부를 상이하게 제어하여 차량의 주행 안전사고를 방지한다.The prior art disclosed in <Patent Document 1> uses at least one of a driving information collection unit that collects at least one of geographic information and weather information of a driving area, geographic information, and weather information to determine whether fog exists in a vehicle driving area. It includes a fog area determining unit to determine, a display unit, a camera unit that photographs and outputs a front image of the vehicle to the display unit, a vehicle lamp unit installed in the vehicle to irradiate a predetermined light source, and a control unit that controls the camera unit and the vehicle lamp unit. In addition, the camera unit and the vehicle lamp unit are controlled differently based on weather information about the fog in the driving area of the vehicle to prevent a driving safety accident of the vehicle.

또한, <특허문헌 2> 에 개시된 종래기술은 헤드램프, 전방 카메라, 전방 광센서부, 상기 전방 카메라에 의하여 촬영된 전방 영상의 밝기 값을 연산하는 밝기 연산부, 상기 연산된 밝기 값을 기초로 밝기 증감 값을 연산하여, 상기 밝기 증감 값에 따른 밝기 증감 신호를 생성하는 밝기 증감 연산부 및 상기 밝기 증감 신호를 제공받아 상기 헤드램프의 밝기를 조절하는 헤드램프 제어부를 포함한다. 이러한 구성을 통해 자동차 램프의 밝기를 자동으로 제어한다.In addition, the prior art disclosed in <Patent Document 2> includes a headlamp, a front camera, a front optical sensor unit, a brightness calculator that calculates a brightness value of a front image photographed by the front camera, and brightness based on the calculated brightness value. And a brightness increase/decrease operation unit that calculates an increase/decrease value to generate a brightness increase/decrease signal according to the brightness increase/decrease value, and a headlamp control unit which receives the brightness increase/decrease signal and adjusts the brightness of the headlamp. Through this configuration, the brightness of the car lamp is automatically controlled.

대한민국 등록특허 10-16-8664호(2016.03.29. 등록)(차량의 주행 안전사고 방지 시스템Korean Patent Registration No. 10-16-8664 (Registered on March 29, 2016) (Vehicle driving safety accident prevention system 대한민국 공개특허 10-2014-0080201(2014.06.30. 공개)(자동차 램프 제어 장치 및 방법)Republic of Korea Patent Publication 10-2014-0080201 (published on June 30, 2014) (Vehicle lamp control device and method)

그러나 상기와 같은 일반적인 차량의 램프 자동제어장치는 조도 센서와 같은 별도의 센서를 차량에 장착하고, 이를 이용하여 램프의 온 또는 오프를 제어하는 방식으로서, 별도의 감지 센서를 차량에 장착해야 하는 문제가 있으며, 아울러 조도에 따라 램프의 온/오프만 가능할 뿐 밝기 조정은 어려운 단점이 있다.However, the automatic lamp control device of a general vehicle as described above is a method of installing a separate sensor such as an illuminance sensor on the vehicle and using this to control the on or off of the lamp, and a separate detection sensor must be installed on the vehicle. In addition, it is only possible to turn on/off the lamp according to the illuminance, but it is difficult to adjust the brightness.

또한, <특허문헌 1> 로 언급한 종래기술은 날씨 정보 중 안개 정보를 기반으로 해당 지역에 차량이 진입하면 자동으로 램프를 점등해줄 수 있는 장점은 있으나, 이것은 실제 검출한 안개 정보를 이용하는 것이 아니고 단순히 날씨 정보만을 이용하므로 정확성이 결여되고, 아울러 밝기 조절은 불가능한 단점이 있다.In addition, the prior art mentioned in <Patent Document 1> has the advantage of automatically turning on a lamp when a vehicle enters the area based on fog information among weather information, but this is not using the actual detected fog information. Since only weather information is used, accuracy is lacking, and brightness adjustment is not possible.

또한, <특허문헌 2> 언급한 종래기술은 전방 카메라와 전방 광센서를 이용하여 자동으로 램프의 밝기를 조절할 수 있는 장점은 있으나, 조도 감지를 위해 별도의 카메라 및 광센서를 설치해야 하는 어려움이 있으며, 아울러 별도의 카메라 및 광센서의 장착으로 설치 비용이 많이 소요되는 단점도 있다.In addition, the prior art mentioned in <Patent Document 2> has the advantage of automatically adjusting the brightness of the lamp using the front camera and the front optical sensor, but it is difficult to install a separate camera and optical sensor for illuminance detection. In addition, there is a disadvantage that installation costs are high due to the installation of a separate camera and optical sensor.

따라서 본 발명은 상기와 같은 일반적인 램프 제어장치 및 종래기술에서 발생하는 제반 문제점을 해결하기 위해서 제안된 것으로서, 별도의 감지 센서를 이용하지 않고 차량에 기본적으로 구비된 자동긴급제동장치(Advanced Emergency Braking System, AEBS)를 위한 거리 감지용 카메라를 이용하여 전방 조도를 감지하고, 이를 이용하여 램프의 밝기를 자동으로 조절할 수 있도록 한 카메라를 이용한 차량 램프 밝기제어장치를 제공하는 데 그 목적이 있다.Accordingly, the present invention has been proposed to solve the problems that occur in the general lamp control device and the prior art as described above, and an Advanced Emergency Braking System basically provided in a vehicle without using a separate detection sensor. , AEBS) to detect the front illumination using a camera for distance detection, and to provide a vehicle lamp brightness control device using a camera capable of automatically adjusting the brightness of the lamp using this.

상기한 바와 같은 목적을 달성하기 위하여, 본 발명에 따른 "카메라를 이용한 차량 램프 밝기제어장치"는, 점등할 램프를 선택하기 위한 램프 스위치; 전방 조도 감지를 감지하는 자동긴급제동장치(AEBS); 상기 자동긴급제동장치로부터 촬영한 영상을 분석하여 밝기를 산출하고, 산출한 밝기를 기초로 조도에 따른 헤드램프 밝기 조정 제어신호를 발생하는 전자제어장치; 상기 램프 스위치의 헤드램프 스위치가 온 상태이면 상기 전자제어장치에서 발생한 헤드램프 밝기 조정 제어신호에 대응하는 헤드램프의 밝기 조정 값을 내부 메모리로부터 추출하고, 추출한 헤드램프 밝기 조정 값을 헤드램프에 출력하여 헤드램프의 밝기를 자동으로 조정하는 전압조정모듈을 포함하는 것을 특징으로 한다.In order to achieve the above object, the "vehicle lamp brightness control apparatus using a camera" according to the present invention includes a lamp switch for selecting a lamp to be lit; An automatic emergency braking system (AEBS) that detects front illumination detection; An electronic control device that analyzes an image captured by the automatic emergency braking device to calculate brightness, and generates a headlamp brightness adjustment control signal according to illuminance based on the calculated brightness; When the headlamp switch of the lamp switch is on, the brightness adjustment value of the headlamp corresponding to the headlamp brightness adjustment control signal generated by the electronic control device is extracted from the internal memory, and the extracted headlamp brightness adjustment value is output to the headlamp. It characterized in that it comprises a voltage adjustment module for automatically adjusting the brightness of the headlamp.

상기에서 자동긴급제동장치는 거리 감지용 카메라를 이용하여 차량 전방을 촬영하고, 촬영 영상을 전자제어장치에 전달하는 것을 특징으로 한다.In the above, the automatic emergency braking device is characterized in that the front of the vehicle is photographed using a distance sensing camera and the photographed image is transmitted to the electronic control device.

상기에서 전자제어장치는 촬영한 영상의 관심 영역(ROI; Region of Interest)내의 밝기를 조도 감지 값으로 산출하는 것을 특징으로 한다.In the above, the electronic control device is characterized in that it calculates the brightness within a region of interest (ROI) of the captured image as an illuminance detection value.

상기에서 전압조정모듈은 헤드램프의 점등 전압을 7V ~ 13.5V 영역에서 가변하여 밝기를 조정하는 것을 특징으로 한다.In the above, the voltage adjustment module is characterized in that it adjusts the brightness by varying the lighting voltage of the headlamp in the range of 7V to 13.5V.

본 발명에 따르면 별도의 감지 센서를 이용하지 않고 차량에 기본적으로 구비된 자동긴급제동장치(Advanced Emergency Braking System, AEBS)를 위한 거리 감지용 카메라를 이용하여 전방 조도를 감지하고, 이를 이용하여 램프의 밝기를 자동으로 조절함으로써, 별도의 비용을 추가하지 않으면서도 헤드램프의 밝기를 조도에 따라 최적으로 조절할 수 있는 장점이 있다.According to the present invention, the front illumination is sensed using a distance detection camera for an automatic emergency braking system (AEBS) basically provided in the vehicle without using a separate detection sensor, and using this By automatically adjusting the brightness, there is an advantage in that the brightness of the headlamp can be optimally adjusted according to the illuminance without adding additional cost.

도 1은 일반적인 차량의 램프 제어장치 블록 구성도,
도 2는 본 발명에 따른 카메라를 이용한 차량 램프 밝기제어장치가 적용되는 차량 시스템의 개략 구성도,
도 3은 본 발명에 따른 카메라를 이용한 차량 램프 밝기제어장치의 블록 구성도이다.1 is a block diagram of a typical vehicle lamp control device;
2 is a schematic configuration diagram of a vehicle system to which a vehicle lamp brightness control apparatus using a camera according to the present invention is applied;
3 is a block diagram of an apparatus for controlling brightness of a vehicle lamp using a camera according to the present invention.

이하 본 발명의 바람직한 실시 예에 따른 카메라를 이용한 차량 램프 밝기제어장치를 첨부된 도면을 참조하여 상세하게 설명한다.Hereinafter, an apparatus for controlling brightness of a vehicle lamp using a camera according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 바람직한 실시 예에 따른 카메라를 이용한 차량 램프 밝기제어장치가 적용되는 차량 시스템의 개략 구성도로서, AEB 스위치와 보디 제어 모듈(BCM)과 클러스터(Cluster)와 연동하고, 위험 상황 시 자동으로 긴급 제동을 수행하는 자동긴급제동장치(AEBS)(40), 상기 자동긴급제동장치(40)와 연동하여 조도에 따라 헤드램프(31)의 밝기를 자동으로 조정하는 전압조정모듈(60)로 구성된다.2 is a schematic configuration diagram of a vehicle system to which a vehicle lamp brightness control device using a camera according to a preferred embodiment of the present invention is applied, in conjunction with an AEB switch, a body control module (BCM), and a cluster, and a dangerous situation An automatic emergency braking system (AEBS) 40 that automatically performs emergency braking during the event, and a voltage adjustment module 60 that automatically adjusts the brightness of the headlamp 31 according to the illuminance in connection with the automatic emergency braking device 40 ).

도 3은 본 발명에 따른 "카메라를 이용한 차량 램프 밝기제어장치"의 블록 구성도로서, 점등할 램프를 선택하기 위한 램프 스위치(10), 전방 조도 감지를 감지하는 자동긴급제동장치(AEBS)(40), 상기 자동긴급제동장치(40)로부터 촬영한 영상을 분석하여 밝기를 산출하고, 산출한 밝기를 기초로 조도에 따른 헤드램프 밝기 조정 제어신호를 발생하는 전자제어장치(50), 상기 램프 스위치(10)의 헤드램프 스위치가 온 상태이면 상기 전자제어장치(50)에서 발생한 헤드램프 밝기조정 제어신호에 대응하는 헤드램프의 밝기 조정 값을 내부 메모리로부터 추출하고, 추출한 헤드램프 밝기 조정 값을 헤드램프에 출력하여 헤드램프의 밝기를 자동으로 조정하는 전압조정모듈(VSM)(60), 상기 전압조정모듈(60)에서 출력되는 전압으로 점등되는 헤드램프(31)/콤비네이션 램프(32)/안개 램프(33)를 포함한다.3 is a block diagram of a “vehicle lamp brightness control device using a camera” according to the present invention, a lamp switch 10 for selecting a lamp to be lit, and an automatic emergency braking device (AEBS) for detecting front illumination ( 40), an electronic control device 50 that analyzes the image captured by the automatic emergency braking device 40 to calculate brightness, and generates a headlamp brightness adjustment control signal according to the illuminance based on the calculated brightness, the lamp When the headlamp switch of the switch 10 is turned on, the brightness adjustment value of the headlamp corresponding to the headlamp brightness adjustment control signal generated from the electronic control device 50 is extracted from the internal memory, and the extracted headlamp brightness adjustment value is A voltage adjustment module (VSM) 60 that outputs to the headlamp and automatically adjusts the brightness of the headlamp, and the headlamp 31/combination lamp 32 that is lit with the voltage output from the voltage adjustment module 60/ It includes a fog lamp (33).

상기 자동긴급제동장치(40)는 거리 감지용 카메라를 이용하여 차량 전방을 촬영하고, 촬영 영상을 전자제어장치(50)에 전달한다.The automatic emergency braking device 40 photographs the front of the vehicle using a distance sensing camera and transmits the photographed image to the electronic control device 50.

이와 같이 구성된 본 발명에 따른 카메라를 이용한 차량 램프 밝기제어장치의 동작을 구체적으로 설명하면 다음과 같다.The operation of the vehicle lamp brightness control apparatus using the camera according to the present invention configured as described above will be described in detail as follows.

먼저, 차량 운전 중 운전자가 램프를 점등하고자 하면, 램프 스위치(10)를 통해 점등시킬 램프를 선택한다. 여기서 램프 스위치(10)에는 헤드램프 스위치, 콤비네이션 램프 스위치, 안개 램프 스위치 등이 구비되어 있다. 본 발명에서는 운전자가 헤드램프 스위치를 온 상태로 조작한 것으로 가정한다.First, when the driver wants to light the lamp while driving the vehicle, the lamp to be lit is selected through the lamp switch 10. Here, the lamp switch 10 includes a head lamp switch, a combination lamp switch, and a fog lamp switch. In the present invention, it is assumed that the driver has operated the headlamp switch in the ON state.

전압 조정 모듈(20)은 상기 램프 스위치(10)로부터 헤드램프 스위치가 온 상태로 조작되면, 헤드램프 선택으로 인지한다. 이어, 전자제어장치(50)와 연동하여 헤드램프 밝기조정 제어신호를 확인한다.When the headlamp switch is operated from the lamp switch 10 to the ON state, the voltage adjustment module 20 recognizes that the headlamp is selected. Subsequently, in conjunction with the electronic control device 50, a control signal for adjusting the brightness of the headlamp is checked.

여기서 자동긴급제동장치(AEBS)(40)는 차량 운행이 시작되면 거리 감지용 카메라를 이용하여 전방을 촬영하게 되고, 전방 촬영 영상을 전자제어장치(50)에 전달한다. 상기 자동긴급제동장치(40)는 차량 위험 상황 시 자동으로 제동을 수행하여 위험으로부터 차량 및 운전자를 보호하기 위한 장치로서, 라이다, 레이더, 거리 감지용 카메라 등을 필수적으로 구비하고 있다. 따라서 본 발명에서는 상기와 같이 필수적으로 구비된 장비 중 거리 감지용 카메라를 이용하여 조도 감지용 정보로 활용한다.Here, when the vehicle starts to operate, the automatic emergency braking system (AEBS) 40 photographs the front using a distance sensing camera, and transmits the photographed image in front to the electronic control device 50. The automatic emergency braking device 40 is a device for protecting a vehicle and a driver from danger by automatically performing braking in a vehicle danger situation, and essentially includes a lidar, a radar, and a camera for distance detection. Therefore, in the present invention, a camera for distance detection is used among the equipment essentially provided as described above, and is used as information for detecting illumination.

상기 전자제어장치(50)는 상기 자동긴급제동장치(40)로부터 촬영한 전방 영상을 분석하여 밝기를 조도 감지 값으로 산출한다.The electronic control device 50 analyzes the front image captured by the automatic emergency braking device 40 and calculates the brightness as an illuminance detection value.

즉, 촬영한 영상으로부터 관심 영역(ROI; Region of Interest) 추출 기법을 이용하여 관심 영역을 추출하고, 추출한 관심 영역의 화소 값을 연산하여 밝기를 산출한다. 이렇게 산출한 밝기를 조도 감지로 하고, 감지한 조도 값에 대응하여 헤드램프 밝기조정 제어신호를 전압조정모듈(60)에 전달한다.That is, a region of interest (ROI) extraction technique is used to extract a region of interest from the captured image, and brightness is calculated by calculating a pixel value of the extracted region of interest. The calculated brightness is used as illuminance detection, and a headlamp brightness adjustment control signal is transmitted to the voltage adjusting module 60 in response to the detected illuminance value.

상기 전압조정모듈(60)은 상기 램프 스위치(10)의 헤드램프 스위치가 온 상태이면, 상기 전자제어장치(50)에서 발생한 헤드램프 밝기 조정 제어신호에 대응하는 헤드램프의 밝기 조정 값을 내부 메모리로부터 추출한다. 여기서 콤비네이션 램프나 안개 램프의 점등 요구 시에는 상기 헤드램프 밝기조정 제어신호를 이용하지 않는다. 이어, 추출한 헤드램프 밝기 조정 값(점등 전압)을 헤드램프(31)에 출력하여 헤드램프의 밝기를 조도에 따라 자동으로 조정한다.When the headlamp switch of the lamp switch 10 is turned on, the voltage adjustment module 60 stores the brightness adjustment value of the headlamp corresponding to the headlamp brightness adjustment control signal generated from the electronic control device 50 in the internal memory. Extract from Here, when the combination lamp or fog lamp is requested to be lit, the headlamp brightness adjustment control signal is not used. Then, the extracted headlamp brightness adjustment value (lighting voltage) is output to the headlamp 31 to automatically adjust the brightness of the headlamp according to the illuminance.

여기서 기존에는 헤드램프의 점등 전압으로 고정된 램프 점등 전압(13.5V)을 이용하였다. 이것은 조도와 무관하게 항상 최상의 헤드램프 점등 전압 값이므로, 조도가 좋은 상태에서는 전력 낭비를 유발한다. 따라서 본 발명에서는 자동긴급제동장치의 거리 감지용 카메라를 이용하여 조도를 감지하고, 감지한 조도에 따라 헤드램프의 밝기를 조정하여 전력 낭비를 방지하면서도 항상 최적의 헤드램프 밝기를 유지하게 된다. 이를 위해서, 조도에 따라 헤드램프(31)의 점등 전압을 7V ~ 13.5V로 가변하여, 헤드램프(31)의 밝기를 자동으로 조정하게 된다.Here, conventionally, the lamp lighting voltage (13.5V) fixed as the lighting voltage of the headlamp was used. Since this is always the best headlamp lighting voltage value regardless of the illuminance, it causes power waste in a good illuminance condition. Therefore, in the present invention, the brightness of the headlamp is controlled by using the camera for distance detection of the automatic emergency braking device, and the brightness of the headlamp is adjusted according to the detected illuminance to prevent power waste while always maintaining the optimal headlamp brightness. To this end, the lighting voltage of the headlamp 31 is varied from 7V to 13.5V according to the illuminance, so that the brightness of the headlamp 31 is automatically adjusted.

가변되는 점등 전압은 헤드램프 밝기조정 값에 대응하며, 이는 조도에 따른 가변되는 전압이라고 할 수 있다.The variable lighting voltage corresponds to the headlamp brightness adjustment value, which can be said to be a variable voltage according to the illuminance.

이상 본 발명자에 의해서 이루어진 발명을 상기 실시 예에 따라 구체적으로 설명하였지만, 본 발명은 상기 실시 예에 한정되는 것은 아니고 그 요지를 이탈하지 않는 범위에서 여러 가지로 변경 가능한 것은 이 기술분야에서 통상의 지식을 가진 자에게 자명하다.Although the invention made by the present inventor has been described in detail according to the above embodiment, the present invention is not limited to the above embodiment, and it is common knowledge in the art that various changes can be made without departing from the gist of the invention. It is self-evident to those who have

10: 램프 스위치 31: 헤드램프
32: 콤비네이션 램프 33: 안개 램프
40: 자동긴급제동장치(AEBS) 50: 전자제어장치(ECU)
60: 전압조정모듈(VSM)10: lamp switch 31: head lamp
32: combination lamp 33: fog lamp
40: automatic emergency braking system (AEBS) 50: electronic control unit (ECU)
60: voltage regulation module (VSM)

Claims (3)

카메라를 이용하여 조도를 감지하고, 감지한 조도에 따라 차량 램프의 밝기를 제어하기 위한 장치로서,
점등할 램프를 선택하기 위한 램프 스위치;
전방 조도 감지를 감지하는 자동긴급제동장치(AEBS);
상기 자동긴급제동장치로부터 촬영한 영상을 분석하여 밝기를 산출하고, 산출한 밝기를 기초로 조도에 따른 헤드램프 밝기 조정 제어신호를 발생하는 전자제어장치; 및
상기 램프 스위치의 헤드램프 스위치가 온 상태이면 상기 전자제어장치에서 발생한 헤드램프 밝기 조정 제어신호에 대응하는 헤드램프의 밝기 조정 값을 내부 메모리로부터 추출하고, 추출한 헤드램프 밝기 조정 값을 헤드램프에 출력하여 헤드램프의 밝기를 자동으로 조정하는 전압조정모듈을 포함하는 것을 특징으로 하는 카메라를 이용한 차량 램프 밝기제어장치.
As a device for detecting illuminance using a camera and controlling the brightness of a vehicle lamp according to the detected illuminance,
A lamp switch for selecting a lamp to be lit;
An automatic emergency braking system (AEBS) that detects front illumination detection;
An electronic control device that analyzes an image captured by the automatic emergency braking device to calculate brightness, and generates a headlamp brightness adjustment control signal according to illuminance based on the calculated brightness; And
When the headlamp switch of the lamp switch is on, the brightness adjustment value of the headlamp corresponding to the headlamp brightness adjustment control signal generated by the electronic control device is extracted from the internal memory, and the extracted headlamp brightness adjustment value is output to the headlamp. Vehicle lamp brightness control device using a camera, characterized in that it comprises a voltage adjustment module for automatically adjusting the brightness of the headlamp.
 청구항 1에서, 상기 자동긴급제동장치는 거리 감지용 카메라를 이용하여 차량 전방을 촬영하고, 촬영 영상을 전자제어장치에 전달하는 것을 특징으로 하는 카메라를 이용한 차량 램프 밝기제어장치.
The vehicle lamp brightness control device using a camera according to claim 1, wherein the automatic emergency braking device photographs the front of the vehicle using a distance sensing camera and transmits the photographed image to the electronic control device.
 청구항 1에서, 상기 전자제어장치는 촬영한 영상의 관심 영역(ROI; Region of Interest)내의 밝기를 조도 감지 값으로 산출하는 것을 특징으로 하는 카메라를 이용한 차량 램프 밝기제어장치.







The vehicle lamp brightness control device using a camera according to claim 1, wherein the electronic control device calculates a brightness within a region of interest (ROI) of the captured image as an illuminance detection value.
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KR20000039268A (en) * 1998-12-11 2000-07-05 윤종용 Adjustment device of illumination and rotation angle for headlight, and the method
JP2004189114A (en) * 2002-12-12 2004-07-08 Hitachi Ltd Irradiation system
KR20120018613A (en) * 2010-08-23 2012-03-05 현대모비스 주식회사 Auto-light controlling apparatus and controlling method for vehicles
KR20140080201A (en) 2012-12-20 2014-06-30 현대오트론 주식회사 Apparatus and method for controlling lighting device of vehicle
KR101686640B1 (en) 2015-05-14 2016-12-14 부산대학교 산학협력단 Preparation method for Nitrogen doped graphene having a polymer coating-sulfur complexes, the prepared complexes and lithium-sulfur battery using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000039268A (en) * 1998-12-11 2000-07-05 윤종용 Adjustment device of illumination and rotation angle for headlight, and the method
JP2004189114A (en) * 2002-12-12 2004-07-08 Hitachi Ltd Irradiation system
KR20120018613A (en) * 2010-08-23 2012-03-05 현대모비스 주식회사 Auto-light controlling apparatus and controlling method for vehicles
KR20140080201A (en) 2012-12-20 2014-06-30 현대오트론 주식회사 Apparatus and method for controlling lighting device of vehicle
KR101686640B1 (en) 2015-05-14 2016-12-14 부산대학교 산학협력단 Preparation method for Nitrogen doped graphene having a polymer coating-sulfur complexes, the prepared complexes and lithium-sulfur battery using the same

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