JP4643995B2 - Display control device - Google Patents

Description

  The present invention relates to a display control device, and for example, relates to a display control device that causes a display device to display an image shot by a shooting device provided in a vehicle.

As shown in FIG. 7, in the conventional display control device, images 50 to 53 obtained by a plurality of photographing devices that respectively photograph detection ranges of a plurality of sensors that detect obstacles are provided on the display screen of the display device. The display 50 is displayed corresponding to each of the plurality of display areas 54 to 57, and the image 50 captured by the imaging device that captures the detection range of the sensor that detected the obstacle is highlighted and displayed in a highlighted manner. There is one that displays an image 50 obtained by photographing toward a detection range of a sensor that detects an object in a form that is easy to visually recognize (see, for example, Patent Document 1).
JP 2004-274538 A (page 7, FIG. 17)

  However, the conventional display control apparatus has a problem in that it is desired to display an image obtained by photographing toward the detection range of the sensor that detects the obstacle in a form that is easier to visually recognize.

  The present invention has been made in order to solve the conventional problems, and it is easier to visually recognize the image obtained by shooting toward the detection range of the sensor that detects the obstacle as compared with the conventional display control device. An object of the present invention is to provide a display control device that can be displayed on a display device.

This onset Ming is a display controller having a control means for displaying each of a plurality of display areas of the display device a plurality of images which the vehicle exterior is photographed by the photographing device provided in the vehicle, said control means When the plurality of sensors provided in the vehicle and measuring the distance to the obstacle detect the obstacle, the width of the display area is determined according to the detection result of the plurality of sensors . A display area of an image captured toward the detection range of the sensor that has detected an obstacle at a distance closer than a distance is directed toward the detection range of the sensor that has detected an obstacle at a distance greater than or equal to the predetermined distance. It is configured to allocate a wider area than the display area of the photographed video .

  INDUSTRIAL APPLICABILITY The present invention has an effect that an image obtained by shooting toward a detection range of a sensor that detects an obstacle can be displayed on a display device in a form that is easier to visually recognize than a conventional display control device. A display control apparatus is provided.

  Embodiments of the present invention will be described below with reference to the drawings.

  In the present embodiment, the display control device according to the present invention is applied to a video display device mounted on a vehicle, and the control means constituting the display control device according to the present invention is a CPU (Central Processing Unit). An example of the configuration will be described.

  An image display apparatus according to an embodiment of the present invention is shown in FIG.

  The video display device 1 includes a CPU 2, a ROM (Read Only Memory) 3, a RAM (Random Access Memory) 4, a display device 8 that constitutes a display device such as a liquid crystal display, and a photographing device that photographs the outside of the vehicle. Cameras 13 to 16 and sensors 17 to 20 for detecting obstacles.

  The CPU 2 reads a program including a display control program for controlling the display of the display device 8 from a nonvolatile storage medium such as the ROM 3 into the RAM 4 and executes the program read into the RAM 4 to execute the program of the display device 8. Each function of the video display device 1 such as display is controlled.

  As shown in FIG. 2, the cameras 13 to 16 are provided on the left side of the front of the vehicle, the right side of the front of the vehicle, the left side of the rear of the vehicle, and the right side of the rear of the vehicle. Each one is to be photographed.

  In the present embodiment, the four cameras 13 to 16 are used. However, the number of cameras used in the present invention and the shooting direction are not limited. For example, in addition to providing the cameras 13 and 14, a prism camera or a wide-angle camera may be provided in the front part of the vehicle. In addition to providing the cameras 15 and 16, a prism camera or a wide-angle camera is provided in the rear part of the vehicle. Also good.

  The sensors 17 to 20 are constituted by, for example, sonar, and are respectively provided on the left side of the front of the vehicle, the right side of the front of the vehicle, the left side of the rear of the vehicle, and the right side of the rear of the vehicle. Each obstacle on the right rear is detected.

  In the present embodiment, the four sensors 17 to 20 are used, but the number of sensors used in the present invention is not limited.

  The operation of the video display device 1 configured as described above will be described with reference to FIGS.

  FIG. 3 is a flowchart for explaining the video display control operation of the CPU 2 that executes the display control program.

  First, the CPU 2 determines whether or not the vehicle is moving forward (S1). Here, the determination as to whether or not the vehicle is moving forward is made based on, for example, the state of a transmission provided in the vehicle.

  Next, the CPU 2 selects a video based on the determination result (S2). Specifically, when the CPU 2 determines that the vehicle is moving forward, the CPU 2 selects an image obtained by the cameras 13 and 14 and when the CPU 2 determines that the vehicle is moving backward, An image obtained by photographing with the cameras 15 and 16 is selected.

  Next, the CPU 2 determines the importance of the video according to the detection results of the sensors 17 to 20 (S3). Specifically, when the CPU 2 selects the video obtained by the cameras 13 and 14, the CPU 2 determines the importance of each selected video according to the detection results of the sensors 17 and 18. , 16 is selected, the importance of each selected video is determined according to the detection results of the sensors 19 and 20.

  Here, the selected images such as the sensors 17 and 18 corresponding to the images obtained by the cameras 13 and 14 and the sensors 19 and 20 corresponding to the images obtained by the cameras 15 and 16 are selected. Hereinafter, the sensor corresponding to is simply referred to as “effective sensor”. In addition, a state where no effective sensor detects an obstacle is hereinafter simply referred to as “non-detection state”, and a state where any effective sensor detects an obstacle is hereinafter simply referred to as “detection state”. The state where the effective sensor detects the obstacle is hereinafter simply referred to as “multiple detection state”.

  Next, the CPU 2 allocates a display area of a video to be displayed on the screen of the display device 8 according to the determined importance (S4).

  Specifically, the CPU 2 assigns each display area equally in the non-detection state, and in the detection state, the image obtained by shooting toward the detection range of the effective sensor that detected the obstacle. The display area of the non-detection state is assigned wider than the display area in the non-detection state, and the display area of the image taken for the detection range of the effective sensor that did not detect the obstacle is Also assign narrowly.

  For example, as illustrated in FIG. 4A, when the CPU 2 selects an image obtained by shooting with the cameras 13 and 14, the sensor 18 detects the obstacle 30 and the sensor 17 detects the obstacle. If not, as shown in FIG. 4B, the display area 32 on which the video 31 obtained by the camera 14 is displayed is allocated wider than the display area in the non-detection state, and the camera 13 takes the picture. The display area 34 on which the video 33 obtained in this way is displayed is allocated narrower than the display area in the non-detection state.

  Further, in the case of the multi-detection state, the CPU 2 hides the display area of the image obtained by shooting toward the detection range of the effective sensor that detects the obstacle at a distance closer than a predetermined reference distance. Allocate wider than the display area in the detection state, and allocate other display areas narrower than the display area in the non-detection state.

  For example, as illustrated in FIG. 5A, when the CPU 2 selects an image captured by the cameras 15 and 16, the obstacle 36 and the sensor 20 that are closer than the reference distance from the sensor 19. When the sensors 19 and 20 detect the obstacle 35 at a distance greater than or equal to the reference distance from the camera, as shown in FIG. 5 (b), a camera that shoots toward the detection range of the sensor 20 that has detected the obstacle 36. The display area 38 of the video image 37 obtained by shooting 16 is assigned wider than the display area in the non-detection state, and is acquired by the camera 15 that shoots toward the detection range of the sensor 19 that detects the obstacle 35. The display area 40 of the displayed video 39 is allocated narrower than the display area in the non-detection state.

  In the case of the multi-detection state, the CPU 2 displays a display area of an image obtained by shooting toward the detection range of the effective sensor that detects an obstacle approaching at a speed higher than a predetermined reference speed. The display area may be allocated wider than the display area in the non-detection state, and other display areas may be allocated narrower than the display area in the non-detection state.

  For example, as shown in FIG. 6A, when the CPU 2 selects an image captured by the cameras 13 and 14, the obstacle 41 approaching the sensor 17 at a speed higher than the reference speed and the reference When the sensors 17 and 18 detect the obstacle 42 approaching the sensor 18 at a speed equal to or lower than the speed, they are obtained by being photographed by the camera 13 that photographs toward the detection range of the sensor 17 that detected the obstacle 41. The display area 44 of the video 43 is allocated wider than the display area in the non-detection state, and the display area 46 of the video 45 obtained by shooting with the camera 14 shooting toward the detection range of the sensor 18 that has detected the obstacle 42. Is assigned smaller than the display area in the non-detection state.

  In FIG. 3, the CPU 2 displays the images obtained by the cameras 13 and 14 or the cameras 15 and 16 in the respective display areas allocated on the screen of the display device 8 (S5).

  Here, the CPU 2 displays all the images obtained by the camera in the display area allocated wider than the display area in the non-detection state on the screen of the display device 8, and displays on the screen of the display device 8. In addition, it is preferable to display a part of the image obtained by the camera in the display area allocated narrower than the display area in the non-detection state.

  According to such a video display device of an embodiment of the present invention, since the size of the video display area is determined according to the detection result of the sensor, the image is captured toward the detection range of the sensor that detected the obstacle. The video thus obtained can be displayed on the display device in a form that is easier to visually recognize than the conventional display control device.

  As described above, the display control device according to the present invention is a display device in which the image obtained by shooting toward the detection range of the sensor that detected the obstacle is more visible than the conventional display control device. For example, it is useful as a display control device or the like that displays an image shot by a shooting device provided in a vehicle on a display device.

1 is a block diagram of a video display device according to an embodiment of the present invention. The conceptual diagram which shows the example of the installation position of the camera and sensor which comprise the video display apparatus in one embodiment of this invention The flowchart for demonstrating the video display control operation of CPU which comprises the video display apparatus in one embodiment of this invention. The conceptual diagram for demonstrating the 1st display example of the image | video displayed on the screen of the display apparatus which comprises the video display apparatus in one embodiment of this invention. The conceptual diagram for demonstrating the 2nd example of a display of the image | video displayed on the screen of the display apparatus which comprises the video display apparatus in one embodiment of this invention. The conceptual diagram for demonstrating the 3rd example of a display of the image | video displayed on the screen of the display apparatus which comprises the video display apparatus in one embodiment of this invention. An image showing a display example of the screen of a display device constituting a conventional display control device

1 video display device 2 CPU
3 ROM
4 RAM
8 Display device 13, 14, 15, 16 Camera 17, 18, 19, 20 Sensor

Claims (3)

A display control device including a control means for displaying each of a plurality of display areas of the display device a plurality of images which the vehicle exterior is photographed by the photographing device provided in the vehicle,
The control means determines the size of the display area according to the detection results of the plurality of sensors when the plurality of sensors provided in the vehicle and measuring the distance to the obstacle detect the obstacle . A detection range of the sensor that detects an obstacle located at a distance greater than or equal to the display area of the image captured toward the detection range of the sensor that has detected an obstacle at a distance closer to the predetermined distance. A display control apparatus that allocates a wider area than a display area of an image shot toward the camera . A display control device comprising control means for displaying a plurality of images taken from the outside of the vehicle by a photographing device provided in a vehicle in a plurality of display areas of the display device,
The control means determines the size of the display area according to the detection results of the plurality of sensors when the plurality of sensors provided in the vehicle and measuring the speed at which the obstacle approaches approach the obstacle. The sensor that detects an obstacle approaching a display area of an image taken toward a detection range of the sensor that detects an obstacle approaching at a speed higher than a predetermined speed, and is less than the predetermined speed The display control device is characterized in that it is allocated wider than the display area of the video imaged toward the detection range. Wherein the control means, broadly causes display all images captured in the display area allocated, narrow allocated display control according to claim 1 or 2, characterized in that to display the portion of the photographed image in the display area apparatus.

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