JP2001114048A - On-vehicle operation supporting information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To visually display not only the information required for navigating a vehicle, such as a navigation device, but also the information on the safety of peripheral conditions of an automobile. SOLUTION: The indication screen of a means 5 of displaying, which is mounted on a vehicle 10, is horizontally divided into three parts. The left side screen 5L usually reflects the image photographed by a camera installed to the left, diagonally rear side of an automobile, the right side screen 5R usually reflects the image photographed by a camera installed to the right diagonally rear side of the automobile, and a central screen 5C reflects the images photographed by cameras installed to the front, or the right and left sides which are in the dead angle, or the rear of the automobile, or displays the multipurpose screen comprising a map-display screen obtained as output of a navigation device. Further, only an image of other automobile approaching the own automobile can be displayed so that it can be accurately visually confirmed, a bird' eye view centered at the own automobile, which is composed from the images photographed by plural cameras installed to the automobile, can be displayed on the central screen, and image data from a camera installed above the position at which a vehicle is to be stopped, can be taken in on a radio to be displayed on the central screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle driving support which is mounted on a vehicle such as an automobile and displays information necessary or useful for driving the vehicle to a driver or a passenger on display means such as a display. The present invention relates to an information display device.

[0002]

2. Description of the Related Art Heretofore, a navigation device has been known as a typical example of this kind of on-board driving support information display device. This is based on the current position information of the vehicle obtained by the current position detecting means such as a GPS receiver,
The map information recorded on a recording medium such as a ROM is read and stored in an image storage means, and a map near the current position is displayed on a display means such as a liquid crystal display together with the obtained current position of the vehicle. In addition, a recommended route from the departure point of the own vehicle to the destination is calculated by the route searching means, and when the driver is approaching the intersection based on the vehicle position information and the recommended route, voice or sound is generated by the guidance means. Guidance can be provided on a screen, and further, facility information such as sightseeing spots, restaurants, and gas stations can be displayed. In addition to displaying the map near the current position not only two-dimensionally on the screen but also three-dimensionally the view seen by the driver, the displayed map and the actual road on which the vehicle is traveling can be displayed. It can also make it easier to respond.

[0003]

However, a vehicle-mounted driving support information display device such as a conventional navigation device can detect the current position information of the own vehicle,
Information on the relationship between the vehicle and other vehicles and obstacles around the vehicle was not obtained. Such information is usually obtained from a rearview mirror or a side mirror. In recent years, a device that captures an image of the rear of the vehicle using a camera mounted on the vehicle and displays the image on a display is also known. Did not come out of the side mirror replacement.

The present invention has been made to solve such a conventional problem. In-vehicle driving support capable of displaying not only information necessary for navigation of a vehicle such as a navigation device but also information related to safety around the own vehicle. An information display device is provided.

[0005]

In order to solve the above-mentioned problems, an on-vehicle driving support information display device of the present invention divides a display device mounted on a vehicle and a display screen of the display device into three parts in a horizontal direction. , The left screen always displays the camera image that reflects the diagonally backward left of the vehicle, the right screen constantly displays the camera image that reflects the diagonally backward right of the vehicle, and the center screen displays the image in front of the vehicle. Alternatively, it has a configuration provided with a display control means for displaying a multipurpose screen including a camera image showing the rear or a map display screen obtained as an output of the car navigation device. With this configuration, a camera image in front of or behind the vehicle or map information from a navigation device is displayed in the center of the screen, and left and right screens include:
Since the camera images of the left and right rear of the vehicle are displayed, it is possible to provide the driver with not only the information necessary for the navigation of the vehicle but also information about the safety around the vehicle, and the left and right screens are always displayed. Since the same information is output, there is an advantage that the driver can easily recognize the information without giving any embarrassment to the driver.

Further, in the vehicle driving support information display apparatus according to the present invention, the display control means displays, on the left and right screens, an image obtained by inverting the camera image which shows the left and right obliquely backward of the own vehicle. Therefore, the driver can recognize the display screen with a feeling similar to that of a video projected on a normal side mirror.

Further, in the vehicle driving support information display device according to the present invention, when the display control means displays a camera image for projecting the rear of the vehicle on the center screen, the image is displayed by reversing the left and right images. Is characterized in that
The driver can recognize the display screen with the same feeling as a video projected on a normal rearview mirror.

[0008] Further, the on-vehicle driving support information display device according to the present invention is characterized in that the display control means displays a camera image of a blind spot in front of the vehicle on the center screen. Since the driver can check the blind spots at the front left and right of the vehicle, as at a T-junction intersection, the driver can drive safely.

Further, in the vehicle-mounted driving support information display device according to the present invention, the display control means recognizes another vehicle from a camera image which reflects the left, right, diagonally rearward, forward and rearward of the own vehicle; When the image of the other vehicle gradually increases, approach determination means for judging that the other vehicle is approaching the own vehicle, and caution switching only the image portion of the approaching other vehicle to the caution display And a display unit. With this configuration, it is possible to clearly recognize that another vehicle has approached from the screen displayed on the display means.

Further, the on-vehicle driving support information display device of the present invention synthesizes one overhead view centered on the own vehicle from a plurality of camera images including the left and right diagonally backward and forward and backward of the own vehicle, and It has a configuration provided with a vehicle surrounding information display control means for displaying on a central screen. Such a display control means is disclosed by the present applicant in Japanese Patent Application No. 10-2172.
No. 61 and others. By using this technology, an image around the own vehicle position and its surroundings can be displayed on the display means as a bird's-eye view just viewed from directly above. And very useful obstacle information when parking in a crowded parking lot.

The vehicle-mounted driving support information display device according to the present invention includes: a camera installed above a parking space or an intersection; video data transmitting means for wirelessly transmitting video data captured by the camera; And a display control means for displaying the received video data on a central screen of the display means, the video data receiving means being configured to receive video data from the transmission means. . With this configuration, an image from a camera installed above a parking lot of an own house or a facility, an intersection, or the like is captured on a central screen of a display means of the own vehicle via wireless communication, so that the own vehicle and another vehicle or The positional relationship with an obstacle or the like can be clearly recognized.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 shows a schematic configuration of an in-vehicle driving support information display device according to Embodiment 1 of the present invention, in which a plurality of cameras 1 with a vehicle attached thereto and video data from each camera 1 are shown. A plurality of video processing units 2 for processing
A navigation device 3, display control means 4 for converting video data from each video processing unit 2 and the navigation device 3 into data suitable for display, and display means 5 such as a liquid crystal display having a horizontally long rectangular display screen And

FIG. 2 shows the relationship between the positions of the plurality of cameras 1 installed in the vehicle and the display screen of the display means 5 according to the first embodiment. The vehicle 10 has a front camera 11 mounted at the center of the roof front to image the front of the vehicle, a rear camera 12 mounted at the center of the roof rear of the vehicle 10 to image the rear of the vehicle, and a rearward facing rear left mirror of the vehicle 10. A left rear camera 13 is attached and captures an image of the vehicle diagonally left behind, and a right rear camera 14 is mounted on the right door mirror of the vehicle 10 rearward and captures an image of the vehicle diagonally backward.

The image signals picked up by the camera 1 are subjected to A / D conversion after performing preprocessing such as correlated double sampling and automatic gain control in a video processing unit 2, and further generate a luminance signal and a color difference signal. Then, white balance, gamma processing, and the like are performed, and output as a video signal. In the display control unit 4, as shown in FIG. 2, the image captured by the left rear camera 13 is displayed on the left screen 5L of the display unit 5, and the image captured by the front camera 11 or the rear camera 12 is displayed on the center screen 5C. Then, the image captured by the right rear camera 14 is divided into screens so as to be displayed on the right screen 5R, and based on a user's operation command from an operation unit (not shown), for example, a touch panel provided on the display screen. On the center screen 5C, control is performed to switch the video from the front camera 11, the video from the rear camera 12, or the video from the navigation device 3. Furthermore, when connection with communication means such as the Internet is possible and the user selects it, control is performed so that the video input via the communication means is displayed. The left and right screens 5
The left and right sides of the video data to be displayed on the L and 5R and the video data behind the vehicle displayed on the center screen 5C are inverted by the display control means 4 so that the same visual sense as a normal side mirror or rearview mirror can be obtained. It is preferable to display as a mirror image.

As described above, the navigation device 3 includes a means for detecting the current position of the own vehicle, such as a GPS device, and reads map data from a recording medium, such as a DVD, in accordance with the detected position of the own vehicle. A means for storing in a memory, a means for searching for a recommended route to a destination, a means for displaying map data read from an image memory on a display means 4, and the like, and further described in JP-A-9-292254. Display conversion that converts the map data read from the image memory to bird's-eye view data where the viewpoint position is located above and behind the vehicle, or converts it to bird's-eye view data that is placed directly above the vehicle Means. In order to obtain road traffic information from the VICS center, V
An ICS receiver is provided.

As shown in FIG. 3, a left front camera 15 attached to the left side of the front bumper of the vehicle 10 to image the left front of the vehicle, and a right front camera attached to the right side of the front bumper to image the right front of the vehicle. 1
By further attaching the camera 6 and displaying the camera image on the center screen 5C, it is possible to check the blind spots at the front left and right of the own vehicle, such as at a T-junction intersection, so that it is possible to drive safely.

As described above, according to the first embodiment, the plurality of cameras 1 attached to the front, rear, left and right of the vehicle, and the plurality of video processing units 2 for processing the video data from each camera 1
A navigation device 3, display control means 4 for converting video data from each video processing unit 2 and the navigation device 3 into data suitable for display, and display such as a liquid crystal display having a horizontally long rectangular display screen. Means 5
In the center of the screen of the display means 5, the camera image of the front of the vehicle, the front left and right or the rear, or the map information from the navigation device is displayed, and the left and right screens display the camera images of the left and right rear of the vehicle. Therefore, not only information necessary for the navigation of the vehicle but also information about safety around the own vehicle can be appropriately provided to the driver.

(Embodiment 2) FIG. 4 shows a schematic configuration of an on-vehicle driving support information display device according to Embodiment 2 of the present invention, and the basic configuration is the same as that shown in FIG. . That is, a plurality of cameras 1 having a vehicle attached thereto, a plurality of video processing units 2 for processing video data from each camera 1, a navigation device 3, and video data from each video processing unit 2 and the navigation device 3. The apparatus includes a display control unit 4 for converting data into data suitable for display, and a display unit 5 such as a liquid crystal display having a horizontally long rectangular display screen. The image processing unit 2 includes another vehicle recognizing means 6 for recognizing another vehicle from a camera image that reflects the left, right, diagonally rearward, forward, and rearward of the own vehicle, and when the image of the other vehicle gradually increases. Determining means 7 for determining that another vehicle is approaching the own vehicle
And a caution display means 8 for switching only the image location of the approaching other vehicle to the caution display.

The other vehicle recognizing means 6 of the video processing unit 2 extracts an edge portion of the vehicle from the image signal picked up by the rear camera and the image signal picked up by the left and right cameras, and the approach judging means 7 surrounds the edge portion. By detecting a temporal change in the area of the inferred area, it is determined whether or not the vehicle is approaching.
However, a signal is sent to the display control means 4 so that the signal of the vehicle area portion is displayed in the first color tone and that of the vehicle that goes away is displayed in the second color tone. Upon receiving this signal, the display control means 4, as shown in FIG.
In the case of the first color tone, the vehicle portion is displayed in a cloudy color tone, and in the case of the second color tone, the vehicle portion is controlled to be displayed in a translucent color tone or to be transparently displayed. As a result, the driver can clearly recognize whether the other vehicle behind is approaching or moving away, and can cope with the approaching vehicle with a margin. In addition, the warning display of the approaching vehicle may change the brightness in addition to the color tone, blink the display, and / or alert the driver by voice or character telop.

(Embodiment 3) FIG. 6 shows a schematic configuration of an on-vehicle driving support information display device according to Embodiment 3 of the present invention, and the basic configuration is the same as that shown in FIG. . That is, a plurality of cameras 1 having a vehicle attached thereto, a plurality of video processing units 2 for processing video data from each camera 1, a navigation device 3, and video data from each video processing unit 2 and the navigation device 3. A display control means 4 for converting the data into data suitable for display and a display means 5 such as a liquid crystal display having a horizontally long rectangular display screen are provided. Then, the display control unit 4 combines one overhead view centered on the own vehicle from a plurality of camera images including the left, right, diagonally rearward, forward, and rearward of the own vehicle, and displays the synthesized image on the center screen 5C of the display unit 5. The vehicle surrounding information display control means 9 is provided.

The own vehicle peripheral information display control means 9 utilizes the technology described in Japanese Patent Application No. 10-217261 and the like, and as shown in FIG. A front camera 21 mounted at the center to capture the front of the vehicle, a rear camera 22 mounted at the center of the rear of the roof of the vehicle 20 to capture the rear of the vehicle, and a rear camera mounted to the left door mirror of the vehicle 20 to capture the diagonally rear left of the vehicle. Rear camera 23, which is attached rearward to the right door mirror of the vehicle 20 to capture an image of the vehicle diagonally rearward, and right rear camera 24, which is mounted laterally to the left front pillar of the vehicle 20 and captures the vehicle diagonally forward left. A camera 25 and a right front camera 26 mounted laterally on a right front pillar of the vehicle 20 to capture an image of the vehicle diagonally forward are provided. The image data captured by these cameras is
After being processed by a predetermined algorithm, as shown in FIG. 7 (b), it is synthesized as one overhead view viewed from directly above the own vehicle and displayed on the center screen 5C of the display means 5. .

In FIG. 7 (b), a display image 37 is a projected image 30 of the own vehicle (in this technique, a deformed picture or a blank or an outline is displayed because the own vehicle is not shown). At the center, a front image section 31 captured by the front camera 21, a rear image section 32 captured by the rear camera 22, a left oblique rear image section 33 captured by the left rear camera 23, and a right image captured by the right rear camera 24. A single planar image that includes an oblique rear image section 34, a left oblique front image section 35 captured by the left front camera 25, and a right oblique front image section 36 captured by the right front camera 26, and Has become.

As described above, according to the third embodiment, the image around the own vehicle as shown in FIG.
Is displayed at the start, the driver can start while confirming that there is no obstacle by checking the front, rear, left and right. Further, in the subsequent traveling, the camera image of the front camera 21 or the rear camera 22 can be displayed on the center screen 5, and map information can be displayed using the navigation device 3. Then, when the vehicle enters or exits the parking area of the parking area in the middle of the traveling area or the parking area at the destination, a screen as shown in FIG. Thus, the vehicle can be moved while confirming safety.

(Embodiment 4) FIG. 8 shows a schematic configuration of an on-vehicle driving assistance information display device according to Embodiment 4 of the present invention. Camera 41 installed above the camera and camera 4
Video data processing unit 42 that processes video data from
A narrow-band video data transmitting unit 43 for wirelessly transmitting the video data processed by the video data processing unit 42; and a narrow-band video data receiving unit mounted on the vehicle and receiving the video data from the transmitting unit 43. Means 44. The video data from the camera 41 output from the video data receiving means 44 is output from the plurality of cameras 1 mounted on the vehicle and processed by the video processing unit 2 or the map output from the navigation device 3 After being input to the display control means 4 together with the information and converted into data suitable for display, the data is displayed by a display means 5 such as a liquid crystal display having a horizontally long rectangular display screen.

The camera 41, as shown in FIG.
0 is mounted on the top of the column 50 so as to be located right above the parking space of the house or parking lot where the vehicle stops. An image processing unit 42 is provided near the camera 41 on the support 50.
A transmitting unit 45 including a video data transmitting unit 43 and a video data transmitting unit 43 is attached, and is connected to the camera 41 by a cable. On the other hand, a receiving unit 46 including video data receiving means 44 is attached to the roof of the vehicle 40.

In the display control means 4, as shown in FIG.
During normal running, the image captured by the left rear camera 13 is displayed on the left screen 5L of the display means 5, the image captured by the front camera 11 or the rear camera 12 is displayed on the center screen 5C, and the image captured by the right rear camera 14 is displayed. The captured video is divided into screens so as to be displayed on the right screen 5R. When the garage is put in or out of a parking space at home or in a parking lot, the video data captured by the camera 41 is captured via the transmission unit 45 and the reception unit 46 and displayed on the central screen 5C of the display unit 5. . This allows the vehicle to enter and exit the parking space while confirming safety.

The camera 41 is located at the upper center of the intersection.
By hanging from three or four sides with wires or attaching to a beam that is hung on a column, it is possible to travel while checking the progress of the vehicle at the intersection.

[0028]

As described above, the on-vehicle driving support information display device of the present invention divides the display screen of the display means mounted on the vehicle into three parts in the horizontal direction, and the left screen is always the left of the own vehicle. A camera image that reflects the diagonally backward direction is displayed.The screen on the right always displays a camera image that reflects the diagonally backward right direction of the vehicle. Since there is provided a display control means for displaying a multi-purpose screen including a map display screen obtained as an output of the navigation device, not only information necessary for navigation of the vehicle such as a navigation device, but also information on safety around the own vehicle. Can be displayed on a common display means, thereby reducing the space and cost of the device, and providing more useful information to the driver. It has an effect. In addition, since the same information is always output for the left and right screens, there is an advantage that the driver can easily recognize the left and right screens without being bothered.

Further, according to the present invention, from the camera image displayed on the display means, only the image portion of another vehicle approaching the own vehicle is displayed so as to be clearly visible, or a plurality of images attached to the own vehicle are displayed. A single bird's-eye view centered on the own vehicle can be synthesized from the camera image and displayed on the central screen, or video data from a camera installed above a parking space or an intersection can be wirelessly captured and displayed on the central screen. So
Further, safe and useful information can be provided to the driver.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a schematic configuration of a vehicle-mounted driving support information display device according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing a relationship between a camera arrangement of a vehicle and a display screen according to the first embodiment.

FIG. 3 is another schematic diagram illustrating a relationship between a camera arrangement of a vehicle and a display screen according to the first embodiment.

FIG. 4 is a block diagram illustrating a schematic configuration of a vehicle-mounted driving support information display device according to a second embodiment;

FIG. 5 is a schematic diagram showing an example of a display screen in Embodiment 2.

FIG. 6 is a block diagram showing a schematic configuration of a vehicle-mounted driving support information display device according to a third embodiment;

7A is a schematic diagram illustrating a camera arrangement of a vehicle according to a third embodiment. FIG. 7B is a schematic diagram illustrating an example of a composite image of the camera according to the third embodiment.

FIG. 8 is a block diagram showing a schematic configuration of a vehicle-mounted driving support information display device according to a fourth embodiment.

FIG. 9 is a schematic diagram showing a camera arrangement according to the fourth embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 camera 2 video processing unit 3 navigation device 4 display control means 5 display control means 6 other vehicle recognition means 7 approach determination means 8 caution display means 9 own vehicle surrounding information display control means 40 vehicle 41 camera 42 video processing unit 43 video data transmission Means 44 Video data receiving means 45 Transmitting unit 46 Receiving unit 50 Support

Claims (7)

[Claims] 1. A display device mounted on a vehicle and a display screen of the display device are divided into three parts in a horizontal direction.
Always display the camera image that reflects the diagonally backward left of the vehicle,
The right screen always displays a camera image that reflects the diagonally backward right of the vehicle, and the center screen displays a camera image that reflects the front or rear of the vehicle or a multi-purpose screen that includes a map display screen obtained as an output of a car navigation device. An on-vehicle driving support information display device comprising a display control means for displaying a screen. 2. The display control unit according to claim 1, wherein the left and right screens display left and right inverted images of the camera image that shows the left and right diagonally backward of the vehicle. In-vehicle driving support information display device. 3. When the display control means displays a camera image showing the rear of the vehicle on the center screen,
3. The on-vehicle driving support information display device according to claim 1, wherein the left and right reversed images are displayed. 4. The in-vehicle driving according to claim 1, wherein said display control means displays a camera image of a portion which is a blind spot on the front left and right sides of the own vehicle on said central screen. Support information display device. 5. The other vehicle recognizing means, wherein the display control means recognizes another vehicle from a camera image showing the left, right, diagonally rearward, forward and rearward of the own vehicle, and the image of the other vehicle gradually increases. In this case, the vehicle further includes approach determination means for determining that the other vehicle is approaching the own vehicle, and caution display means for switching only an image portion of the approaching other vehicle to a caution display. An in-vehicle driving support information display device according to any one of the above. 6. A plurality of camera images including an obliquely rearward left and right, a front, and a rear of the own vehicle, the center of which is centered on the own vehicle.
The in-vehicle driving support information display device according to any one of claims 1 to 5, further comprising: an own-vehicle peripheral information display control unit that combines two bird's-eye views and displays them on the center screen. 7. A camera installed above a parking space or an intersection, video data transmitting means for wirelessly transmitting video data picked up by the camera, and video data mounted on the vehicle and transmitted from the transmitting means. 7. The in-vehicle driving support information display device according to claim 1, further comprising: video data receiving means for receiving the video data; and display control means for displaying the received video data on a central screen of the display means.