KR100663930B1 - Room mirror for providing rear moving picture system etc. - Google Patents

Abstract

The present invention relates to a vehicle room mirror, and in particular, by adding a multi-function video function to the vehicle room mirror, it is usually used as a room mirror and the direction, distance, and the like observed and detected from the rear of the vehicle and obstacles when the vehicle is reversed or stopped. The present invention relates to a room mirror having a comprehensive rear image providing system for providing a user with an LCD output unit provided at a side of the room mirror.

The present invention provides a drive unit for providing a signal input from the adapter and the switching board unit to the LCD output unit and the signal output unit, a signal output unit for outputting a buzzer sound or audio signal provided from the drive unit, and the input signal received from the drive unit An LCD output unit provided to the user through the screen, a switching board unit for inverting the camera operation and photographed image installed at the rear of the vehicle through a user selection signal, and is connected to a reversing light, a rear camera, an ultrasonic sensor, and an external device. The present invention provides a room mirror having a rear image providing system comprising an adapter for providing an input signal from a connecting device to a driver through a connection.

According to the present invention, by using the camera selection button and the image inversion selection button configured in the switching board, it is possible to constantly watch the image of the rear of the vehicle in any situation of stopping, driving and reversing the vehicle, and also by connecting an external device There is an effect that can increase the range of utilization through the device.

Rearview Mirror, Rear View Camera, Ultrasonic Sensor, External Devices, Adapter

Description

Room mirror with multi-function image providing system }

1 is a state diagram used in the room mirror for a vehicle according to the prior art

2 is a system schematic diagram of FIG.

3 is a perspective view of a rearview image providing room mirror system according to the present invention;

4 is a block diagram of a rearview image providing room mirror system according to the present invention;

5 is a perspective view of a switching board according to the present invention

6 is a circuit diagram of an adapter according to the present invention;

7 is a perspective view of a remote control according to the present invention

Explanation of symbols on the main parts of the drawings

100: drive unit 101: adapter connection unit

102: reverse light detection unit 103: selection unit

104: microcomputer unit 105: signal amplification unit

107: power supply unit 150: signal output unit

200: LCD output unit 201: LCD driver

202: LCD display unit 300: switching board unit

301: light emitting element 302: power / video reverse selection button

303: external device / camera selection button 304: volume control lever

305: screen brightness adjustment lever 306: light receiving unit

400: adapter 401: external device connection

402: drive connection portion 403: reversing light connection portion

404: ultrasonic sensor connection 405: rear camera connection

406: adapter power supply 500: remote control

501: power button 502: external device / camera selection button

503: video reverse button 504: volume control button

505: screen brightness adjustment button 600: ultrasonic sensor

700: reversing light 800: rear camera

900: external device

The present invention relates to a vehicle room mirror system, and in particular, by adding an image function to the vehicle room mirror, it is usually used as a room mirror, and the direction, distance, etc. of images and obstacles observed and detected from the rear of the vehicle when the vehicle is reversed or stopped. It relates to a rear image providing room mirror system for providing a user with an LCD output unit provided on the side of the room mirror.

In general, a vehicle is provided with a room mirror and a left / right side mirror, and when the user reverses while driving the vehicle, the rear view is secured through side mirrors and room mirrors installed on both sides of the vehicle.

However, the rear has a problem that it is difficult to adjust the distance compared to the front and sometimes to directly check the objects in the rear directly down from the vehicle.

Therefore, in order to solve the above problems, the applicant has proposed Utility Model Publication No. 273120, "Room rear view mirror for easy rearviewing," as of January 22, 2002.

According to the above application, Figure 1 is a state diagram of the room mirror for the vehicle easy to use rear view according to the prior art, Figure 2 is a use system diagram according to FIG.

According to FIG. 1, a mirror 12 mounted on the front of the frame 11 and indicating the rear of the vehicle, a frame 11 formed at an edge thereof, and mounted on one side of the front surface of the room mirror 10 are mounted. TFT-LCD 20 for displaying an image and a measurement distance, an operation button 30 installed at the bottom center of the room mirror 10, and a bolt function of the license plate 41, and at the same time continuously monitor the rear of the vehicle. Surveillance camera 40 photographed and provided to the TFT-LCD 20, the ultrasonic sensor 50 and the control box and auxiliary to measure the distance between the vehicle and the obstacles in the vicinity thereof provided to the TFT-LCD 20 Consists of a control unit 60 including a control box and a buzzer.

The operation description according to the above configuration is as follows.

When the driver presses the operation button 30 installed at the bottom center of the room mirror 10 or stops the reverse gear in the reverse position to stop the vehicle in operation, the surveillance camera 40 installed on the license plate of the vehicle is located at the rear of the vehicle. Shoot the situation continuously.

The image signal according to the photographing is transmitted to the control box 42, and is transmitted to the TFT-LCD 20 via the signal amplifier 43 to output an image representing the rear situation.

In addition, as the control circuit operates normally, the auxiliary control box 52 outputs a driving pulse signal having a predetermined frequency, and the ultrasonic sensor 50 detects the direction and distance of the obstacle.

The detected result value is transmitted to the control box 42 and output to the TFT-LCD 20 via the signal amplifier 43.

At this time, the measurement distance is output to the upper left side of the TFT-LCD 20 when the obstacle is on the left side, and the measurement distance is output to the upper right side of the TFT-LCD 20 when the obstacle is on the right side.

When the distance between the obstacle and the car is less than a predetermined value, the buzzer sounds through the control of the auxiliary control box 52.

However, the present invention can not (1) use an external device such as a navigation or DVD other than TFT-LCD, and (2) because the rear image is simply displayed on the TFT-LCD, there are letters or numbers in the form of obstacles in the rear. In this case, there was a problem in that the driver was not properly aware of the problem displayed in reverse.

Accordingly, the present invention has been made in view of the above-mentioned problems of the prior art, and includes a driver for providing a signal input from the adapter and the switching board to the LCD output unit and the signal output unit, and a buzzer sound transmitted from the driver or A signal output unit for outputting an audio signal, an LCD output unit for providing a user with an input signal received from the driver through a screen, and a switching board unit for inverting camera operation and photographed images installed at the rear of the vehicle through a user selection signal And a rearview mirror, a rearview camera, an ultrasonic sensor, and an external device, the rearview image providing system including an adapter configured to provide an input signal from the connecting device to the driver through the connection.

In order to achieve the object of the present invention will be described with reference to the accompanying drawings.

3 is a perspective view of a room mirror system according to the present invention.

Referring to FIG. 3, the room mirror system includes an LCD display unit 202 on the side of the room mirror provided inside the vehicle, and a volume control lever 304 and a screen brightness control lever 305 on the side of the room mirror system. Configure to be provided.

Here, the side refers to a position most suitable for the driver's field of view. When the driver's seat is provided on the left side, the LCD display unit 202 is provided on the left side and a mirror is provided on the right side. When provided, it is preferable that the LCD display unit 202 is provided on the right side and a mirror is provided on the left side.

In addition, the room mirror may be configured to be used as an option in the production process of the automobile, in addition to the case in which the room mirror is used in addition to the basically provided room mirror. Since this is a problem of the simple arrangement of the components disclosed in the present invention, a detailed description thereof will be omitted.

In addition, the light emitting device 301 indicating the operation of the switching board unit 300 to the side of the LCD display unit 202, the power / image inversion selection button 302, the external device / camera selection button 303, the remote control unit The light receiving unit 306 for receiving a signal output from the 500 is configured to be provided.

In addition, the left and right sides of the lower rear portion of the vehicle is provided with an ultrasonic sensor 600, and the rear camera 800 is provided on the rear of the vehicle for capturing the rear image. In consideration of the field of view and performance of the camera, it may be provided in the bumper which can secure the widest range of field of view, and most preferably, after removing the right or left bolt which is a fixing means of the rear license plate, It is good. This structure is a bolt structure having a body having the same size and size as the fixing means of the license plate, the camera is provided on the head of the bolt, the body is formed in the hollow can transmit the detection signal of the camera Wires are stored.

4 is a block diagram of a room mirror system according to the present invention.

According to FIG. 4, a driver 100 controlling to provide input signals transmitted from the switching board unit 300 or the adapter 400 to the LCD output unit 200 and the signal output unit 150, respectively, and the driver unit ( Signal output unit 150 for outputting the buzzer sound or voice signal transmitted from the 100, and the LCD output unit 200 for providing a user with a signal input from the adapter 400 in the state connected to the driver 100 on the screen And, the switching board 300 for providing an input signal to the driver 100 according to the user's selection, the driver 100, the ultrasonic sensor 600, the reversing light 700, the rear camera 800 and the external device Adapter 400 provides a connection means between the 900 and the remote control unit 500 is provided with a respective function button to perform the role of the switching board unit 300 remotely.

The driving unit 100 includes an adapter connection unit 101 for connecting with the adapter 400, a backward light detection unit 102 for detecting the operation of the reverse light 700, a switching board unit 300, or a remote control unit 500. In response to the user selection signal input from the input unit 300, the selection unit 103 for selecting the ultrasonic sensor 600 or the rear camera 800, and receives the operation signal detected from the reversing light detector 102, A microcomputer 104 for controlling the operation of the ultrasonic sensor 600 and the rear camera 800 connected to the adapter 400 through the 103 and the sensing distance of the obstacle behind the vehicle of the ultrasonic sensor 600 are generated. A signal amplifier 105 for amplifying a buzzer sound or an audio signal output from the external device 900, and a power supply 106 for supplying power to the power supply 406 of the driver 100 and the adapter 400. .

The signal output unit 150 is configured to output the buzzer sound or the audio signal amplified by the signal amplifier 105.

The LCD output unit 200 is interlocked with the driving unit 100 and controls the distance detection signal of the vehicle rear obstacle detected by the ultrasonic sensor 600 and the image signal transmitted from the rear camera 800 by the microcomputer unit 104. LCD driver 201 for controlling output to the LCD display unit 202 according to the signal, and LCD display unit 202 for outputting an image signal transmitted from the rear camera 800 through the control of the LCD driver 201. .

Here, when the user presses the power / image inversion selection button 302, the microcomputer unit 104 converts the video signal transmitted from the rear camera into an inverted video signal by using a video mixing means composed of a multiplexer or the like for processing. It is transferred to the LCD driver 201 and displayed through the LCD display unit 202.

In addition, an OSD processing unit (not shown) is additionally provided on the LCD output unit to display the image, direction, distance, etc. detected by the rear camera and the ultrasonic sensor as captions to inform the user. It is configured to be used in synchronism with the transmission signal input to the audio output means when it is notified by an alarm sound or a voice, so that the user can use the image and direction of the dangerous goods by means of an image through the LCD display unit and a voice through the audio output means. , Distance and so on.

5 shows a configuration diagram of a switching board according to the present invention.

According to FIG. 5, the switching board unit 300 includes a light emitting element 301 for identifying whether power is supplied, and a power / image inversion selection button 302 for performing power operation and left / right inversion of an image. And an external device / camera selection button 303 for performing selection of an external device or rear camera 800 connected to the adapter 400, a volume control lever 304 for adjusting the output level, and an LCD. The display unit 202 includes a screen brightness adjusting lever 305 for adjusting the brightness of the screen, and a light receiving unit 306 for receiving an operation signal output from the remote control unit 500.

The switching board unit 300 is configured to supply a power of 12V ~ 24V for driving, the maximum consumption current is configured to be 550mA.

FIG. 6 is a circuit diagram illustrating an adapter corresponding to FIG. 4 in a block diagram form.

According to FIG. 6, the adapter 400 includes an external device connector 401 for inputting a video / audio signal of an external device, a driver connector 402 for transmitting a signal to the driver 100, and a reversing light connector 403. And, the ultrasonic sensor connection unit 404 for the transmission of the signal provided from the ultrasonic sensor 600 and the reversing light 700, the rear camera connection unit 405 for the transmission of the signal provided from the rear camera 800, It consists of an adapter power supply 406 for providing power for driving the adapter 400.

The external device connection unit 401 includes a video signal input terminal ④ of an external output device such as a DVD, a TV, a navigation device, and left and right audio signal input terminals ⑤ and ⑥.

The driving unit connection unit 401 includes a reversing light signal input terminal ②, a rear camera signal input terminal ③ and a rear camera power supply terminal ⑧ associated with the rear camera, and an image signal input terminal related to an external device ( ④) and left and right audio signal input terminals (⑤) (⑥) and other buzzer sound input signal terminals (①), ultrasonic sensor signal input terminals (⑩), adapter power terminals (⑦), and ground terminals (⑨). .

On the other hand, the adapter power supply unit 406 is configured to receive power directly from the power source 107 of the drive unit 100 directly from the outside.

7 is a block diagram of a remote control unit according to the present invention.

According to FIG. 7, the remote control unit 500 uses a general infrared remote control method and the like, and refers to a remote control transmitter for generating a user manipulation signal. The remote control receiver is a light receiving unit 306 provided on a switching board, and the light receiving unit ( The remote signal received by the 306 automatically operates the switching semiconductor element by the selection buttons 302 and 303 and the levers 304 and 305 of the switching board unit 300 according to the user's selection (by remote control operation). Let's do it.

Looking at the appearance of the remote control unit, the power button 501 for water transmission operation, the rear camera / external device selection button 502 for the selection of the rear camera 800 or the external device 900, and the left / right of the image Image inverting button 503 for performing the right inversion, volume control button 504 for adjusting the output level, and LCD display unit 202 screen brightness control button 505 for adjusting the brightness of the screen .

The operation description according to the above configuration is as follows.

The drive unit 100 and the switching board unit 300 are installed inside the room mirror structure having a predetermined shape in the vehicle, and the LCD output unit 200 connected to the drive unit 100 is left of the mirror outside the room mirror structure. Or arranged adjacent to the right side to be provided.

In addition, the rear left and right bottom of the vehicle (preferably to the bumper of the vehicle) to the ultrasonic sensor 600 to detect the distance, the direction of the obstacle behind the vehicle and the ultrasonic sensor connecting portion 404 of the adapter 400 Connect with.

A rear camera 800 is installed to capture the rear of the vehicle at the rear middle portion of the vehicle (preferably in the seal portion and the screw cover portion of the license plate), and the other side is the rear camera connection portion 405 of the adapter 400. To be connected to.

In addition, in order to detect the operation of the reverse light 700 is connected to the reverse light connecting portion 401 of the adapter 400, the external device 900 to be connected to the external device connecting portion 401 of the adapter 400.

The adapter 400 connected to each device is connected to the adapter connecting portion 101 of the driving unit 100 installed inside the room mirror.

In the connected state of the adapter 400 and the driving unit 100, power is applied to the power supply unit 106 of the driving unit 100 as the user sets the on / off state of the vehicle's ignition key. The power supply unit 406 is also provided with power. The power source may be a cigar jack power for the vehicle, or may be connected separately using a power terminal of the vehicle.

On the other hand, the power supply unit 406 of the adapter 400 may be supplied directly from the auxiliary power supply (battery, etc.) when power is not provided from the power supply unit 106 of the driving unit 100.

Power is also supplied to the ultrasonic sensor 600 and the reversing light 700, the rear camera 800, and the external device 900 connected to each other while the power is supplied to the power supply 406 of the adapter 400.

As the power supply is supplied to the driving unit 100 and the adapter 400, the ultrasonic sensor 600, the reversing light 700, the rear camera 800, and the external device 900, the reversing light detecting unit of the driving unit 100 ( In 102, the vehicle reverse light operation is checked.

That is, the backward light detecting unit 102 of the driving unit 100 detects whether an operation signal according to the operation of the reverse light 700 is input, and the detected reverse light operating signal is input to the microcomputer unit 104 of the driving unit 100. do.

In the state of detecting whether the reverse light 700 is operated, the user presses the power / image reversal selection button 302 of the switching board 300 for about 1 second to turn on the power, and selects an external device / camera selection button ( When the 303 is operated and the rear camera selection signal is transmitted to the microcomputer unit 104, the microcomputer unit 104 transmits the rear camera selection signal to the selection unit 103 of the driving unit 100.

On the other hand, when the switching board unit 300 is in operation, when the power / image inversion selection button 302 is pressed for 1 second, the power of the switching board unit 300 is turned off.

In addition, the volume control lever 304 and the screen brightness control lever 305 of the switching board 300 is adjusted to control the volume and screen brightness.

As the rear camera selection signal is transmitted from the switching board unit 300, the selection unit 103 of the driving unit 100 transmits the rear camera selection signal to the adapter 400 connected to the adapter connection unit 101 of the driving unit 100. The operation signal is output to the rear camera 800 connected to the adapter 400 according to the rear camera selection signal transmitted through the adapter connection unit 101 of the driving unit 100 to capture a screen or an obstacle behind the vehicle. Done.

The photographed screen of the rear of the vehicle is converted into an image signal and provided to an input terminal of the LCD output unit 200, and the display unit 202 of the LCD output unit 200 is controlled by controlling the driving unit 201 of the LCD output unit 200. ) Is displayed on the screen of the rear of the vehicle.

At this time, the photographing screen appearing on the display unit 202 of the LCD output unit 200 is normal, but in the case of characters or letters on the photographing screen, left and right are displayed in reverse.

In the situation in which the letter or letters are inverted left and right, the user presses the power / image inversion selection button 302 of the switching board 300 to transmit the image inversion selection signal to the microcomputer 104. The driving unit 201 of the LCD output unit 200 associated with the control unit receives the signal to display a character or a character on a photographing screen normally displayed on the display unit 202 of the LCD output unit 200.

At this time, the photographing screen is reversed to the left and right as opposed to the above.

As shown in the above, the rear image captured by the rear camera 800 according to the power / image inversion selection button 302 of the switching board unit 300 is output by the LCD output unit 200 according to a desired shape of the user. Can be displayed on the display unit 202 of the.

When the user presses the external device / camera selection button 303 of the switching board 300 to transmit the external device selection signal to the microcomputer 104, the microcomputer 104 transmits the external device selection signal of the driving unit 100. The data is transmitted to the selector 103.

According to the transmission, the selector 103 transmits an external device selection signal to the adapter 400 connected to the adapter connection unit 101 of the driving unit 100, and is transmitted through the adapter connection unit 101 of the driving unit 100. The external device 900 such as a DVD or a TV connected to the adapter 400 is selected according to the external device selection signal.

In response to the external device selection signal, the user may transmit the A / V through the LCD display unit 202 and a speaker (a speaker, which may be provided in a vehicle or separately provided in a room mirror structure), through an image or audio signal of the external device 900. Enjoy.

In this case, when the user selects the reverse gear of the vehicle, the reverse gear signal is transmitted to the microcomputer unit, and the selection unit 103 is configured to automatically switch from the A / V system mode to the rear image mode, so that the driver operates the A / V function. Even if you do, make sure you can see the rear view as you back up.

On the other hand, the ultrasonic sensor 600 provided at the rear left and right bottom of the vehicle outputs a frequency in the form of a predetermined driving pulse to detect the direction and distance of the obstacle behind the vehicle.

The distance value and the direction value with respect to the obstacle behind the vehicle detected by the driving pulse signal output from the ultrasonic sensor 600 are the microcomputer 104 of the driving unit 100 through the driving unit connection unit 402 of the adapter 400. Is entered.

The distance value input to the microcomputer 104 is converted into a digital value and provided to the LCD output unit 200, which is connected to the digital output unit according to the OSD processing signal of the driving unit 201 of the LCD output unit 200. Digital values are displayed on the LCD display unit 202.

In addition, while the distance value with the obstacle behind the vehicle detected by the ultrasonic sensor is converted into a digital value in the microcomputer unit 104, a buzzer or a voice according to the value is generated and transmitted to the signal amplifier 105.

That is, the buzzer sound and the audio signal input to the signal amplifying unit 105 through the control of the microcomputer unit 104 are intervals of 50Cm, 40Cm, 30Cm, and 20Cm, depending on the distance between the vehicle and the obstacle behind the vehicle. By specifying the buzzer sound interval or voice signal (for example, "There is an obstacle in the right direction behind 50cm," etc.), the distance between the vehicle and the obstacle behind the car can be determined through the buzzer sound interval. . When generating the voice signal, the voice signal data corresponding to the direction and distance signals received through the ultrasonic sensor unit may be stored in a separate memory in advance and matched.

On the other hand, the remote control unit 500 is provided to play the same role as the switching board unit 300 while the user watches the room mirror structure while using a remote control or the like without directly adjusting the buttons or levers provided in the room mirror structure. The screen and the audio signal may be adjusted, and other users in the vehicle may also adjust the rear screen of the vehicle while driving or stopping through the remote controller 500.

That is, when the external device / camera selection button 502 of the remote control unit 500 is pressed, the selection signal is input to the light receiving unit 306 of the switching board unit 300.

The input signal performs the same function as the operation signal of the external device / camera selection button of the switching board 300 to perform the operation of the rear camera 800 installed at the rear of the vehicle.

In addition, when the image reverse button 503 of the remote control unit 500 is pressed, the selection signal is input to the light receiving unit 306 of the switching board unit 300 as described above.

The input signal plays the same role as the operation signal of the power / image reversal selection button of the switching board unit 300, and the rear screen captured by the rear camera 800 of the vehicle is the LCD output unit 200. Is displayed in reverse on the LCD display unit 202.

Through the remote control as described above, the image of the rear of the vehicle can be constantly monitored through a button operation easily and simply.

According to the present invention, while the driving unit, the switching board unit and the LCD output unit are provided in the room mirror system, the image of the rear of the vehicle can be constantly monitored by simply pressing the camera selection button and the image inversion selection button included in the switching board unit. In addition, it is possible to increase the usability of the external device by operating the adapter connected to the external device connected to the drive unit, and the stop of the vehicle compared to the conventional room mirror system was unable to check the rear image when driving or reversing the vehicle In the reverse and driving situation, the rear view of the vehicle can be easily observed.                     

In addition, even when the driver activates the A / V function, when the reverse is automatically switched to the rear image mode, there is an effect of preventing the backward accident.

Claims (4)

delete  In a normal room mirror installed inside the vehicle, A switching board unit which provides a function selection to invert a camera operation and a photographed image installed at the rear of the vehicle through an operation signal input according to a user's selection; An adapter connected to a reversing light, a rear camera, an ultrasonic sensor, and an external device, the adapter including a drive connection for providing each input signal provided from the devices to the drive; A driver providing a signal input from the adapter and the switching board to an LCD output unit and a signal output unit; A signal output unit configured to output a voice and a buzzer signal provided from the driver; An LCD driver configured to control an input signal transmitted from the driver and transmit the input signal to an LCD display, and an LCD display configured to receive an output signal transmitted from the LCD driver and provide the user through a screen;  The driving unit An adapter connecting portion which is a connecting means with the adapter; A reversing light detector for detecting the operation of the reversing light and transmitting it to the microcomputer unit; A selection unit for selecting an ultrasonic sensor, a rear camera, and an external device connected to the adapter through the control of the microcomputer unit as a signal according to a user selection of the switching board unit or the remote control unit is input; The operation signal is input from the reversing light detection unit, and controls the operation of the ultrasonic sensor, the rear camera, and the external device connected to the adapter through the selection unit. A microcomputer unit which automatically switches to the rear image mode according to the reverse gear signal during the A / V operation; A signal amplifier for amplifying a buzzer sound or an audio signal output from an external device generated according to a distance detection of an obstacle behind the vehicle by the ultrasonic sensor; And a power supply unit for supplying power to a power supply unit of the driving unit and the adapter. The method of claim 2, wherein the switching board unit performs the same function, but further comprises a remote control capable of remotely power / video reverse selection, external device / camera selection, volume control and screen brightness adjustment Room mirror with rear view system. The rear image providing system as claimed in claim 2, wherein the LCD driving unit further comprises an OSD processing unit to display the LCD display by captioning the direction and distance determined by signals from the rear camera and the ultrasonic sensor. Equipped room mirror.

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