KR100743171B1 - Rear obstacle distance display device using ultrasonic sensor - Google Patents

Rear obstacle distance display device using ultrasonic sensor Download PDF

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KR100743171B1
KR100743171B1 KR1020060035140A KR20060035140A KR100743171B1 KR 100743171 B1 KR100743171 B1 KR 100743171B1 KR 1020060035140 A KR1020060035140 A KR 1020060035140A KR 20060035140 A KR20060035140 A KR 20060035140A KR 100743171 B1 KR100743171 B1 KR 100743171B1
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distance information
display device
image
distance
ultrasonic sensor
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전민석
김정일
권대우
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대성전기공업 주식회사
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/56—Display arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/56—Display arrangements
    • G01S7/62—Cathode-ray tube displays

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Traffic Control Systems (AREA)

Abstract

본 발명은 초음파 센서를 이용한 후방 장애물 거리 표시장치에 관한 것으로서, 특히 차량 후방 사물의 거리를 감지하는 복수개의 초음파센서와, 상기 초음파센서에서 감지된 후방 사물의 거리정보를 입력 받아 그 거리정보에 대응하는 숫자정보가 CMOS 이미지 센서로 출력되도록 제어하는 제어부와, 거리정보에 대응하는 숫자 데이터를 저장하고 상기 제어부의 제어에 따라 해당 숫자정보를 CMOS 이미지 센서로 출력하는 EEPROM과, 차량의 후방 사물을 촬영하여 그 촬영영상과 EEPROM에서 공급되는 거리정보 데이터를 합성하여 영상표시기기로 공급하는 CMOS 이미지 센서로 구성하므로서, CMOS 이미지 센서에서 촬영된 영상정보에 초음파센서에서 감지된 거리정보를 미리 혼합하여 영상표시기기로 전송함에 따라 특별히 지정된 표시기기 이외에 다른 용도의 영상표시기기와의 호환성이 향상되고, 이로 인해 네비게이션, DMB 등과같이 영상입력단자를 구비한 모든 표시기기를 통해 후방 촬영영상 및 거리정보를 화면에 표시할 수 있으며, 거리표시정보의 전송을 위한 별도의 데이터 전송라인을 영상표시기기에 연결하지 않아도 되도록 한 초음파 센서를 이용한 후방 장애물 거리 표시장치에 관한 것이다.The present invention relates to an apparatus for displaying a rear obstacle distance using an ultrasonic sensor, and in particular, receives a plurality of ultrasonic sensors for sensing a distance of an object behind a vehicle, and receives distance information of a rear object detected by the ultrasonic sensor and corresponds to the distance information. A control unit for controlling the numeric information to be output to the CMOS image sensor, an EEPROM for storing the numeric data corresponding to the distance information and outputting the numerical information to the CMOS image sensor under the control of the controller, and photographing a rear object of the vehicle. And composed of the CMOS image sensor which synthesizes the captured image and distance information data supplied from EEPROM and supplies it to the image display device, and displays the image by mixing the distance information detected by the ultrasonic sensor in advance with the image information captured by the CMOS image sensor. By sending to the device, the use of the Compatibility with the display device is improved, so that the rear view image and distance information can be displayed on the screen through all the display devices equipped with image input terminals such as navigation and DMB. The present invention relates to a rear obstacle distance display device using an ultrasonic sensor so that a data transmission line does not need to be connected to an image display device.

Description

초음파 센서를 이용한 후방 장애물 거리 표시장치{Display device}Rear obstacle distance display device using ultrasonic sensor {Display device}

도 1 은 종래의 후방 장애물 거리 표시장치를 보인 블록도.1 is a block diagram showing a conventional rear obstacle distance display device.

도 2 는 본 발명의 후방 장애물 거리 표시장치를 보인 블록도.Figure 2 is a block diagram showing a rear obstacle distance display device of the present invention.

도 3 은 본 발명의 제어과정을 보인 플로우챠트.3 is a flow chart showing a control process of the present invention.

도 4 는 본 발명의 다른 실시예를 보인 블록도.Figure 4 is a block diagram showing another embodiment of the present invention.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

10: 초음파센서, 11: 제어부,10: ultrasonic sensor, 11: control unit,

12: EEPROM, 13: CMOS 이미지 센서,12: EEPROM, 13: CMOS image sensor,

14: 렌즈, 5: 영상표시기기,14: lens, 5: image display device,

20: OSD 칩, 20: OSD chip,

본 발명은 초음파 센서를 이용한 후방 장애물 거리 표시장치에 관한 것으로서, 특히 CMOS 이미지 센서에서 촬영된 영상정보에 초음파센서에서 감지된 거리정보를 미리 혼합하여 영상표시기기로 전송함에 따라 특별히 지정된 표시기기 이외에 다른 용도의 영상표시기기와의 호환성이 향상되고, 이로 인해 네비게이션, DMB 등과같이 영상입력단자를 구비한 모든 표시기기를 통해 후방 촬영영상 및 거리정보를 화면에 표시할 수 있으며, 거리표시정보의 전송을 위한 별도의 데이터 전송라인을 영상표시기기에 연결하지 않아도 되도록 한 초음파 센서를 이용한 후방 장애물 거리 표시장치에 관한 것이다.The present invention relates to a rear obstacle distance display apparatus using an ultrasonic sensor, and in particular, the distance information sensed by the ultrasonic sensor is mixed with the image information photographed by the CMOS image sensor and transmitted to the image display apparatus. Compatibility with the video display device of the purpose is improved, and as a result, the rear shot image and distance information can be displayed on the screen through all display devices equipped with video input terminals such as navigation and DMB. The present invention relates to a rear obstacle distance display device using an ultrasonic sensor, so that a separate data transmission line does not need to be connected to an image display device.

도 1 은 종래의 초음파 센서를 이용한 후방 장애물 거리 표시장치를 도시한 것으로서, 1 illustrates a rear obstacle distance display device using a conventional ultrasonic sensor,

차량의 후미에 설치되어 후방 장애물과의 거리를 측정하는 복수개의 초음파센서(1)와;A plurality of ultrasonic sensors 1 installed at the rear of the vehicle and measuring a distance from the rear obstacle;

차량 후진 시 후방 촬영영상 및 후방 장애물과의 거리정보를 표시하기 위해 차량 내부에 설치되는 영상표시기기(4)와;An image display device 4 installed inside the vehicle to display rear photographed images and distance information with rear obstacles when the vehicle is reversed;

차량의 후미에 설치되어 차량 후진 시 후방 장애물을 촬영하고, 그 촬영된 영상신호를 영상전송라인을 통해 영상표시기기(4)에 공급하는 리어카메라(3)와;A rear camera 3 installed at the rear of the vehicle to photograph rear obstacles when the vehicle is retracted, and supply the photographed image signal to the image display device 4 through an image transmission line;

상기 초음파 센서(1)에서 감지된 후방 장애물 거리정보를 별도의 데이터라인을 통해 영상표시기기(15)에 송출하는 제어부(2)로 구성된다.The controller 2 is configured to transmit rear obstacle distance information detected by the ultrasonic sensor 1 to the image display device 15 through a separate data line.

이와같이 구성된 종래기술의 동작을 설명하면 다음과 같다.Referring to the operation of the prior art configured as described above is as follows.

차량 후진시 리어 카메라(3)가 작동하여 차량의 후방 장애물을 촬영하고, 그 촬영된 영상을 영상표시기기(4)로 전송하며, 초음파센서(1)는 작동하여 후방 장애물과의 거리를 감지하여 제어부(2)로 출력한다.When the vehicle reverses, the rear camera 3 operates to photograph the rear obstacle of the vehicle, and transmits the captured image to the image display device 4, and the ultrasonic sensor 1 operates to detect the distance from the rear obstacle. Output to the control unit 2.

상기 제어부(2)는 초음파센서(1)에서 감지된 거리정보를 별도의 데이터 라인 을 통해 영상표시기기(4)로 출력하므로서, 상기 영상표시기기(4)는 입력되는 영상정보에 별도의 데이터라인을 통해 공급되는 거리정보를 합성하여 화면상에 중첩시켜 출력하므로서 운전자가 영상표시기기(4) 화면을 통해 후방장애물을 식별함은 물론 후방 장애물과의 거리를 정확히 파악하여 후진 시 발생되는 접촉사고를 예방할 수 있게 되는 것이다.The controller 2 outputs the distance information detected by the ultrasonic sensor 1 to the image display device 4 through a separate data line, so that the image display device 4 has a separate data line to the input image information. By synthesizing the distance information supplied through the screen and overlaying it on the screen, the driver identifies the rear obstacle through the screen of the video display device 4 as well as accurately grasps the distance to the rear obstacle and detects a contact accident generated in the reverse direction. It can be prevented.

그러나, 종래기술은 초음파센서(1)에서 감지된 후방 장애물과의 거리정보를 영상표시기기(4) 내부에서 리어카메라(3)에서 촬영된 영상신호에 합성시키는 것이기 때문에 특별히 제작된 영상표시기기를 통해서만 후방 촬영영상과 후방 장애물 거리가 표시되는 영상을 얻을 수 있게 되고, 이에 의해 범용적으로 사용되는 모든 영상표시기기를 적용하지 못하는 등 제품의 호환성이 나빠지게 되는 문제점이 있었고, 또한, 초음파센서(1)에서 감지된 거리정보를 영상표시기기(4)에 공급하기 위하여 별도의 데이터라인을 연결해야만 하므로 제품의 차량내 설치가 용이해지지 못하게 되는 문제점이 발생하고 있었다.However, since the conventional art synthesizes the distance information of the rear obstacle detected by the ultrasonic sensor 1 into the image signal photographed by the rear camera 3 inside the image display device 4, a specially manufactured image display device is used. Only the rear shot image and the rear obstacle distance image can be obtained through this, and there is a problem that the compatibility of the product becomes worse, such as not being able to apply all the image display devices that are used universally, and the ultrasonic sensor ( In order to supply the distance information detected in 1) to the image display device 4, a separate data line has to be connected, which causes a problem in that it is not easy to install the product in a vehicle.

따라서, 상기 문제점을 해결하기 위한 본 발명은 차량 후방 사물의 거리를 감지하는 복수개의 초음파센서와, 상기 초음파센서에서 감지된 후방 사물의 거리정보를 입력받아 그 거리정보에 대응하는 숫자정보가 CMOS 이미지 센서로 출력되도록 제어하는 제어부와, 거리정보에 대응하는 숫자데이터를 저장하고 상기 제어부의 제어에 따라 해당 숫자정보를 CMOS 이미지 센서로 출력하는 EEPROM과, 차량의 후방 사물을 촬영하여 그 촬영영상과 EEPROM에서 공급되는 거리정보 데이터를 합성하여 영상표시기기로 공급하는 CMOS 이미지 센서로 구성하므로서, CMOS 이미지 센서에서 촬영된 영상정보에 초음파센서에서 감지된 거리정보를 미리 혼합하여 영상표시기기로 전송함에 따라 특별히 지정된 표시기기 이외에 다른 용도의 영상표시기기와의 호환성이 향상되고, 이로 인해 네비게이션, DMB 등과같이 영상입력단자를 구비한 모든 표시기기를 통해 후방 촬영영상 및 거리정보를 화면에 표시할 수 있으며, 거리표시정보의 전송을 위한 별도의 데이터 전송라인을 영상표시기기에 연결하지 않아도 되도록 한 초음파 센서를 이용한 후방 장애물 거리 표시장치를 제공함을 목적으로 한다.Accordingly, the present invention for solving the problem is a plurality of ultrasonic sensors for detecting the distance of the object behind the vehicle, and receiving the distance information of the rear object detected by the ultrasonic sensor, numeric information corresponding to the distance information is CMOS image A control unit for controlling the sensor to be output to the sensor, an EEPROM for storing numerical data corresponding to the distance information and outputting the numerical information to the CMOS image sensor under control of the controller, a photographed image and an EEPROM for photographing an object in the rear of the vehicle It consists of CMOS image sensor which synthesizes distance information data supplied from and supplies it to image display device. In particular, distance information detected by ultrasonic sensor is mixed with image information captured by CMOS image sensor and transmitted to image display device. In addition to the display device specified, compatibility with video display devices for other purposes is improved. Due to this, rear display images and distance information can be displayed on the screen through all display devices equipped with image input terminals such as navigation and DMB, and a separate data transmission line for transmitting distance display information is connected to the image display device. An object of the present invention is to provide a rear obstacle distance display device using an ultrasonic sensor.

이하, 첨부된 도면 도 2 와 도 3을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, FIGS. 2 and 3.

상기 도면에 의하면, 본 발명은,According to the drawings, the present invention,

청구범위 제 1 항에 의하여,According to claim 1,

차량 후방 사물의 거리를 감지하는 복수개의 초음파센서(10)와;A plurality of ultrasonic sensors 10 for sensing a distance of an object behind the vehicle;

상기 초음파센서(10)에서 감지된 후방 사물의 거리정보를 입력받아 그 거리정보에 대응하는 숫자정보가 CMOS 이미지 센서(13)로 출력되도록 제어하는 제어부(11)와; A controller 11 for receiving distance information of the rear object sensed by the ultrasonic sensor 10 and controlling numerical information corresponding to the distance information to be output to the CMOS image sensor 13;

거리정보에 대응하는 숫자데이터를 저장하고 상기 제어부(11)의 제어에 따라 해당 숫자정보를 CMOS 이미지 센서(13)로 출력하는 EEPROM(12)과;An EEPROM (12) for storing numerical data corresponding to distance information and outputting the numerical information to the CMOS image sensor (13) under the control of the controller (11);

차량의 후방 사물을 촬영하여 그 촬영영상과 EEPROM(12)에서 공급되는 거리 정보 데이터를 합성하여 영상표시기기(15)로 공급하는 CMOS 이미지 센서(13)로 구성된 것을 특징으로 한다.It is characterized by consisting of a CMOS image sensor 13 for taking a photograph of the rear object of the vehicle and synthesizes the photographed image and the distance information data supplied from the EEPROM (12) to the image display device (15).

청구범위 제 2 항에 의하여,According to claim 2,

상기 제어부(11)는 복수개의 초음파센서(10)에서 감지된 거리정보 중 제일 가까운 거리정보를 채택하여 CMOS 이미지 센서(13)로 공급하는 것을 특징으로 한다.The control unit 11 adopts the closest distance information among the distance information detected by the plurality of ultrasonic sensors 10 and supplies the same to the CMOS image sensor 13.

청구범위 제 3 항에 의하여,According to claim 3,

상기 제어부(11)는 초음파센서(10)에서 감지된 후방 장애물과의 거리가 특정 범위내에 존재할 경우 접촉사고 방지를 위한 경고문구가 EEPROM(12)에서 CMOS 이미지 센서(13)로 공급되도록 제어하는 것을 특징으로 한다.The controller 11 controls to supply a warning sentence for preventing a contact accident from the EEPROM 12 to the CMOS image sensor 13 when the distance from the rear obstacle detected by the ultrasonic sensor 10 exists within a specific range. It features.

청구범위 제 4 항에 의하여,According to claim 4,

상기 제어부(11)는 초음파센서(10)에서 감지되는 변동된 거리정보와 영상표시기기(15)상에 화면 표시된 거리정보를 비교하고, 그 비교결과 5cm 이상의 오차가 발생했을 때 변동된 거리정보가 표시되도록 제어하는 것을 특징으로 한다.The controller 11 compares the changed distance information detected by the ultrasonic sensor 10 with the distance information displayed on the screen on the image display device 15, and when the error occurs 5 cm or more, the changed distance information is displayed. Control to display.

이와 같이 구성된 본 발명의 동작을 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above are as follows.

후진기어가 작동하면, 초음파센서(10)가 작동하여 차량 후방에 존재하는 장애물과의 거리를 감지하여 제어부(11)로 공급하고, CMOS 이미지 센서(13)는 차량 후방 장애물을 촬영한다.When the reverse gear is operated, the ultrasonic sensor 10 operates to detect the distance from the obstacle behind the vehicle and supply it to the controller 11, and the CMOS image sensor 13 photographs the obstacle behind the vehicle.

이때, 제어부(11)는 복수개의 초음파센서(10)에서 감지된 후방 장애물과의 거리정보 중 가장 가깝게 감지된 정보를 채택하여 그 채택된 거리정보에 대응하는 숫자데이터가 EEPROM(12)에서 CMOS 이미지 센서(13)로 공급되도록 한다.At this time, the controller 11 adopts the closest sensed information of the distance information with the rear obstacle detected by the plurality of ultrasonic sensors 10, so that the numeric data corresponding to the adopted distance information is stored in the CMOS image in the EEPROM 12. It is supplied to the sensor 13.

이에따라, 상기 CMOS 이미지 센서(13)는 촬영된 영상신호에 EEPROM(12)에서 공급되는 거리정보를 오버레이시켜 영상표시기기(15)로 공급한다.Accordingly, the CMOS image sensor 13 overlays the distance information supplied from the EEPROM 12 onto the captured image signal and supplies the overlayed distance information to the image display device 15.

즉, 상기 CMOS 이미지 센서(13)는 영상신호에 거리정보를 합성하여 복합영상신호를 영상표시기기(15)로 공급하는 것이다.That is, the CMOS image sensor 13 synthesizes distance information into an image signal and supplies a composite image signal to the image display device 15.

상기 복합영상신호는 영상표시기기(15)의 화면상에 도 2 와 같이 후방장애물 영상이 표시되고, 화면의 우측 상단에 작은 크기로 후방 장애물과의 거리정보가 표시되는 것이다.In the composite video signal, the rear obstacle image is displayed on the screen of the image display device 15 as shown in FIG. 2, and the distance information with the rear obstacle is displayed in a small size on the upper right side of the screen.

그리고, 차량의 후진에 의해 초음파센서(10)에서 감지되는 거리정보에 변동이 생기게 되면, 제어부(11)는 변동된 거리정보와 영상표시기기(15)에 표시되고 있는 거리정보를 비교하고, 그 비교결과 오차가 5cm 이상일 때 새롭게 변동된 거리정보가 CMOS 이미지 센서(13)로 공급되도록 하여 새로인 업데이트되도록 한다.When the distance information detected by the ultrasonic sensor 10 occurs due to the reverse of the vehicle, the controller 11 compares the changed distance information with the distance information displayed on the image display device 15, and As a result of the comparison, when the error is 5 cm or more, the newly changed distance information is supplied to the CMOS image sensor 13 to be newly updated.

또한, 상기 제어부(11)는 초음파센서(10)에서 감지된 후방 장애물과의 거리가 특정 범위(차량과 후방장애물이 접촉될 수 있는 근접거리)내에 존재할 경우 접촉사고 방지를 위한 경고문구가 EEPROM(12)에서 CMOS 이미지 센서(13)로 공급되도록 제어한다.In addition, the control unit 11, if the distance to the rear obstacle detected by the ultrasonic sensor 10 is within a certain range (close distance that the vehicle and the rear obstacle can be contacted) the warning statement for preventing contact accidents EEPROM ( The control is supplied to the CMOS image sensor 13 at 12).

이러한 제어에 의해 EEPROM(12)에서 CMOS 이미지 센서(13)로 "충돌위험" 등과 같은 경고데이터가 출력되고, CMOS 이미지 센서(13)는 촬영영상과 경고데이터를 합성하여 영상표시기기(15)로 출력하므로서, 운전자는 영상표시기기(15)를 통해 표시되는 경고문구를 인식하여 차량의 후진을 중지하게 되므로 후진 시 빈번히 발생 되는 접촉사고를 예방할 수 있게 되는 것이다.By such control, warning data such as “collision risk” is output from the EEPROM 12 to the CMOS image sensor 13, and the CMOS image sensor 13 synthesizes the captured image and the warning data to the image display device 15. By outputting, the driver recognizes the warning text displayed through the image display device 15 to stop the reverse of the vehicle, thereby preventing contact accidents frequently generated during the reverse.

상기 설명과 같이 동작하는 본 발명에 의하면, 촬영영상과 거리정보가 CMOS 이미지 센서(13)에서 미리 합성되어 영상표시기기(15)에 공급됨에 따라 영상표시기기(15)에 별도의 데이터라인을 연결하지 않아도 되고, 또한 영상입력단자를 구비한 통상적인 영상표시기기로서 본 발명의 장치를 구현할 수 있게 되므로 제품의 호환성이 향상되는 효과를 기대할 수 있게 된다.According to the present invention operating as described above, as the captured image and the distance information is pre-synthesized by the CMOS image sensor 13 and supplied to the image display device 15, a separate data line is connected to the image display device 15. Since it is possible to implement the apparatus of the present invention as a conventional video display device having a video input terminal, it is possible to expect the effect of improving the compatibility of the product.

한편, 도 4 는 본 발명의 다른 실시예를 도시한 것으로서,On the other hand, Figure 4 shows another embodiment of the present invention,

다른 실시예의 설명에 있어서 본 발명과 동일한 구성요소에 대해서는 동일부호 표기하여 중복설명을 피하기로 한다.In the description of another embodiment, the same components as the present invention will be denoted by the same reference numerals to avoid redundant description.

본 발명의 다른 실시예는,Another embodiment of the present invention,

차량 후방 사물의 거리를 감지하는 복수개의 초음파센서(10)와;A plurality of ultrasonic sensors 10 for sensing a distance of an object behind the vehicle;

상기 초음파센서(10)에서 감지된 후방 사물의 거리정보를 입력 받아 그 거리정보에 대응하는 숫자정보가 OSD 칩(20)으로 출력되도록 제어하는 제어부(11)와; A controller 11 for receiving distance information of the rear object sensed by the ultrasonic sensor 10 and controlling the numeric information corresponding to the distance information to be output to the OSD chip 20;

차량의 후방 사물을 촬영하여 그 촬영영상을 OSD 칩(20)으로 출력하는 CMOS 이미지 센서(13)와; A CMOS image sensor 13 which photographs a rear object of the vehicle and outputs the captured image to the OSD chip 20;

상기 제어부(11)의 제어에 따라 출력된 거리정보에 대응하는 숫자정보와, CMOS 이미지 센서(13)에서 출력된 영상신호를 합성하여 영상표시기기(15)로 출력하는 OSD 칩(20)으로 구성한다. The OSD chip 20 synthesizes numerical information corresponding to the distance information output by the control unit 11 and the image signal output from the CMOS image sensor 13 and outputs the synthesized image signal to the image display device 15. do.

상기 제어부(11)는 복수개의 초음파센서(10)에서 감지된 거리정보 중 제일 가까운 거리정보를 채택하여 OSD 칩(20)으로 공급하는 것을 특징으로 하며, The control unit 11 adopts the closest distance information among the distance information detected by the plurality of ultrasonic sensors 10 and supplies it to the OSD chip 20,

상기 제어부(11)는 초음파센서(10)에서 감지된 후방 장애물과의 거리가 특정 범위내에 존재할 경우 접촉사고 방지를 위한 경고문구가 OSD 칩(20)에서 영상신호와 합성하여 영상표시기(15)에 공급되도록 제어하는 것을 특징으로 한다. When the distance between the rear obstacle detected by the ultrasonic sensor 10 is within a specific range, the control unit 11 combines an image signal in the OSD chip 20 with an image signal in the OSD chip 20 to display the warning message. And controlled to be supplied.

또한 상기 제어부(11)는 초음파센서(10)에서 감지되는 변동된 거리정보와 영상표시기기(15)상에 화면 표시된 거리정보를 비교하고, 그 비교결과 5cm 이상의 오차가 발생했을 때 변동된 거리정보가 표시되도록 제어하는 것을 특징으로 한다. In addition, the control unit 11 compares the distance information detected by the ultrasonic sensor 10 with the distance information displayed on the screen on the image display device 15, and when the error occurs 5cm or more as a result of the comparison, the changed distance information It characterized in that the control to display.

이와같이 구성되는 본 발명의 다른 실시예의 동작을 설명하면 다음과 같다.Referring to the operation of another embodiment of the present invention configured as described above are as follows.

전체적인 동작은 본원 발명과 동일하며, 상이한 부분에 대해서 추가적으로 설명한다.The overall operation is the same as that of the present invention, and further description of different parts will be given.

후진기어의 작동에 의해 차량이 후진하기 시작하면, 제어부(11)는 초음파센서(10)에서 감지되는 거리정보에 해당하는 숫자정보가 출력되도록 OSD 칩(20)을 제어하고, 상기 OSD 칩(20)은 제어부(11)의 제어에 따라 소정의 거리정보와 영상신호를 합성하여 출력한다.When the vehicle starts to reverse by the operation of the reverse gear, the controller 11 controls the OSD chip 20 to output numerical information corresponding to the distance information detected by the ultrasonic sensor 10, and the OSD chip 20 ) Synthesizes and outputs the predetermined distance information and the image signal under the control of the controller 11.

그리고, OSD 칩(20)에서 출력되는 거리정보와 영상신호가 합성된 데이터를 영상표시기기(15)로 출력하므로서 운전자가 영상표시기기(15)를 통해 후방영상정보와 후방장애물과의 거리를 한눈에 볼 수 있게 되는 것이다.In addition, the distance information output from the OSD chip 20 and the data combined with the image signal are output to the image display device 15 so that the driver glances at the distance between the rear image information and the rear obstacle through the image display device 15. Will be seen.

상기 설명과 같은 본 발명의 다른 실시예는 CMOS 이미지 센서(13)가 오버레이(OVERLAY)기능을 지원하지 않을 경우 OSD 칩(20)을 이용하여 후방거리 데이터와 영상신호를 합성시켜 영상표시기(15)로 출력하도록 하는 것이다.According to another embodiment of the present invention as described above, when the CMOS image sensor 13 does not support the overlay function, the image display unit 15 synthesizes the rear distance data and the image signal using the OSD chip 20. To output

이상에서 설명한 바와같이 본 발명은 차량 후방 사물의 거리를 감지하는 복수개의 초음파센서와, 상기 초음파센서에서 감지된 후방 사물의 거리정보를 입력 받아 그 거리정보에 대응하는 숫자정보가 CMOS 이미지 센서로 출력되도록 제어하는 제어부와, 거리정보에 대응하는 숫자데이터를 저장하고 상기 제어부의 제어에 따라 해당 숫자정보를 CMOS 이미지 센서로 출력하는 EEPROM과, 차량의 후방 사물을 촬영하여 그 촬영영상과 EEPROM에서 공급되는 거리정보 데이터를 합성하여 영상표시기기로 공급하는 CMOS 이미지 센서로 구성하므로서, CMOS 이미지 센서에서 촬영된 영상정보에 초음파센서에서 감지된 거리정보를 미리 혼합하여 영상표시기기로 전송함에 따라 특별히 지정된 표시기기 이외에 다른 용도의 영상표시기기와의 호환성이 향상되고, 이로 인해 네비게이션, DMB 등과같이 영상입력단자를 구비한 모든 표시기기를 통해 후방 촬영영상 및 거리정보를 화면에 표시할 수 있으며, 거리표시정보의 전송을 위한 별도의 데이터 전송라인을 영상표시기기에 연결하지 않아도 되도록 한 초음파 센서를 이용한 후방 장애물 거리 표시장치를 제공하는 효과를 기대할 수 있다.As described above, the present invention receives a plurality of ultrasonic sensors for detecting a distance of an object behind the vehicle, and receives distance information of the rear object detected by the ultrasonic sensor, and outputs numerical information corresponding to the distance information to the CMOS image sensor. A control unit for controlling the controller, an EEPROM storing numerical data corresponding to the distance information, and outputting the numerical information to the CMOS image sensor under control of the controller; and photographing a rear object of the vehicle and supplying the photographed image and the EEPROM. It consists of a CMOS image sensor that synthesizes distance information data and supplies it to an image display device.As a result, the distance information detected by the ultrasonic sensor is premixed with the image information captured by the CMOS image sensor and transmitted to the image display device. In addition, the compatibility with other video display device is improved, It is possible to display the rear shot image and distance information on the screen through all display devices equipped with video input terminals such as navigation and DMB, and do not connect a separate data transmission line for transmitting distance display information to the video display device. The effect of providing a rear obstacle distance display device using an ultrasonic sensor can be expected.

Claims (8)

차량 후방 사물의 거리를 감지하는 복수개의 초음파센서(10)와;A plurality of ultrasonic sensors 10 for sensing a distance of an object behind the vehicle; 상기 복수개의 초음파센서(10)에서 감지된 후방 사물의 거리정보 중 제일 가까운 거리정보를 채택하여 그 거리정보에 대응하는 숫자정보가 CMOS 이미지 센서(13)로 출력되도록 제어하는 제어부(11)와; A control unit (11) which adopts the closest distance information among distance information of the rear object detected by the plurality of ultrasonic sensors (10) and outputs numerical information corresponding to the distance information to the CMOS image sensor (13); 거리정보에 대응하는 숫자데이터를 저장하고 상기 제어부(11)의 제어에 따라 해당 숫자정보를 CMOS 이미지 센서(13)로 출력하는 EEPROM(12)과;An EEPROM (12) for storing numerical data corresponding to distance information and outputting the numerical information to the CMOS image sensor (13) under the control of the controller (11); 차량의 후방 사물을 촬영하여 그 촬영영상과 EEPROM(12)에서 공급되는 거리정보 데이터를 합성하여 영상표시기기(15)로 공급하는 CMOS 이미지 센서(13)로 구성된 것을 특징으로 하는 초음파 센서를 이용한 후방 장애물 표시장치.Rear by using an ultrasonic sensor, characterized by comprising a CMOS image sensor 13 for taking a photograph of the rear object of the vehicle and synthesizing the photographed image and distance information data supplied from the EEPROM 12 to the image display device 15. Obstacle display. 제 1 항에 있어서, The method of claim 1, 상기 제어부(11)는 초음파센서(10)에서 감지된 후방 장애물과의 거리가 특정 범위내에 존재할 경우 접촉사고 방지를 위한 경고문구가 EEPROM(12)에서 CMOS 이미지 센서(13)로 공급되도록 제어하는 것을 특징으로 하는 초음파 센서를 이용한 후방 장애물 표시장치.The controller 11 controls to supply a warning sentence for preventing a contact accident from the EEPROM 12 to the CMOS image sensor 13 when the distance from the rear obstacle detected by the ultrasonic sensor 10 exists within a specific range. Rear obstacle display device using an ultrasonic sensor. 제 1 항에 있어서, The method of claim 1, 상기 제어부(11)는 초음파센서(10)에서 감지되는 변동된 거리정보와 영상표시기기(15)상에 화면 표시된 거리정보를 비교하고, 그 비교결과 5cm 이상의 오차가 발생했을때 변동된 거리정보가 표시되도록 제어하는 것을 특징으로 하는 초음파 센서를 이용한 후방 장애물 표시장치.The control unit 11 compares the distance information detected by the ultrasonic sensor 10 with the distance information displayed on the screen on the image display device 15, and when the error is 5 cm or more, the changed distance information is displayed. Rear obstacle display device using an ultrasonic sensor, characterized in that the control to display. 차량 후방 사물의 거리를 감지하는 복수개의 초음파센서(10)와;A plurality of ultrasonic sensors 10 for sensing a distance of an object behind the vehicle; 상기 복수개의 초음파센서(10)에서 감지된 후방 사물의 거리정보 중 제일 가까운 거리정보를 채택하여 그 거리정보에 대응하는 숫자정보가 OSD 칩(20)으로 출력되도록 제어하는 제어부(11)와; A control unit (11) which adopts the closest distance information among distance information of the rear object detected by the plurality of ultrasonic sensors (10) and outputs numerical information corresponding to the distance information to the OSD chip (20); 차량의 후방 사물을 촬영하여 그 촬영영상을 OSD 칩(20)으로 출력하는 CMOS 이미지 센서(13)와; A CMOS image sensor 13 which photographs a rear object of the vehicle and outputs the captured image to the OSD chip 20; 상기 제어부(11)의 제어에 따라 출력된 거리정보에 대응하는 숫자정보와, CMOS 이미지 센서(13)에서 출력된 영상신호를 합성하여 영상표시기기(15)로 출력하는 OSD 칩(20)으로 구성한 것을 특징으로 하는 초음파 센서를 이용한 후방 장애물 표시장치.And the OSD chip 20 for synthesizing the numerical information corresponding to the distance information output under the control of the controller 11 and the image signal output from the CMOS image sensor 13 and outputting the synthesized image signal to the image display device 15. Rear obstacle display device using an ultrasonic sensor, characterized in that. 제 4 항에 있어서, The method of claim 4, wherein 상기 제어부(11)는 초음파센서(10)에서 감지된 후방 장애물과의 거리가 특정 범위내에 존재할 경우 접촉사고 방지를 위한 경고문구가 OSD 칩(20)에서 영상신호와 합성하여 영상표시기(15)에 공급되도록 제어하는 것을 특징으로 하는 초음파 센서를 이용한 후방 장애물 표시장치.When the distance between the rear obstacle detected by the ultrasonic sensor 10 is within a specific range, the control unit 11 combines an image signal in the OSD chip 20 with an image signal in the OSD chip 20 to display the warning message. Rear obstacle display device using an ultrasonic sensor, characterized in that the control to be supplied. 제 4 항에 있어서, The method of claim 4, wherein 상기 제어부(11)는 초음파센서(10)에서 감지되는 변동된 거리정보와 영상표시기기(15)상에 화면 표시된 거리정보를 비교하고, 그 비교결과 5cm 이상의 오차가 발생했을 때 변동된 거리정보가 표시되도록 제어하는 것을 특징으로 하는 초음파 센서를 이용한 후방 장애물 표시장치.The controller 11 compares the changed distance information detected by the ultrasonic sensor 10 with the distance information displayed on the screen on the image display device 15, and when the error occurs 5 cm or more, the changed distance information is displayed. Rear obstacle display device using an ultrasonic sensor, characterized in that the control to display. 삭제delete 삭제delete
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