JP2005078392A - Display device of positions of other vehicles near position of own vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the display device of the positions of other vehicles which never damages safety in traveling. <P>SOLUTION: The display device of the positions of other vehicles near the position of its own vehicle displays the positions of other vehicles existing in the prescribed range of the traveling lane of its own vehicle and a lane adjacent to it in connection with the position of its own vehicle. In a prescribed period when another vehicle enters or leaves the prescribed range, display of the car is designated to be less conspicuous than ordinary display of it. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a safe driving support system, and more particularly to an other vehicle position display device in the vicinity of the own vehicle position that informs the driver of the driving environment while the vehicle is running.

  2. Description of the Related Art Conventionally, a display device that displays the position of another vehicle in the vicinity of its own vehicle position in order to improve vehicle traveling safety is known. Such a display device displays the situation around the host vehicle such as the preceding vehicle and the oncoming vehicle, but detailed display is not necessary, and whether the other vehicle is in the same lane as the own vehicle, whether it is in the oncoming lane, and how much It only has to be able to display whether it is at a distance. This is because the display of this level makes it possible to intuitively recognize the danger of colliding with the front vehicle, and the simplified display reduces the cost of the apparatus.

  FIG. 8 shows a display example of such a conventional vehicle position display device in the vicinity of the vehicle position. The other vehicle position display device is configured so that the preceding vehicle and the overtaking vehicle in the predetermined range of the traveling lane 2 of the oncoming lane or the overtaking lane are in a positional relationship with the own vehicle. Is displayed. Further, in another display example of the other vehicle position display device in the vicinity of the own vehicle position shown in FIG. 9, the positional relationship between the own vehicle and the other vehicle is displayed in three dimensions, and the positional relationship can be recognized more intuitively. .

  In the above display device, the travel lane 1 of the host vehicle and the travel lane 2 adjacent to the right of the host vehicle are displayed, and the relative position of the other vehicle is displayed centering on the position of the host vehicle. The When the own vehicle approaches the preceding vehicle, the preceding vehicle appears to be lowered, and only one of the recognized front vehicle and oncoming vehicle that is closest to the own vehicle in front of the own vehicle is displayed. This is because the nearest vehicle information is necessary for safe driving, and the cost of the apparatus is reduced.

  In such a conventional display device, it is displayed only when the preceding vehicle or the oncoming vehicle is within a predetermined range on the lane, and the state of entering the predetermined range is not displayed. Therefore, for example, when the passing vehicle enters Lane 2 from Lane 1, there is no display of the process of changing the lane from Lane 2 to Lane 1, the vehicle disappears from Lane 2, and the vehicle is suddenly displayed in Lane 1. In addition, when the vehicle enters the range recognized by the device that detects the surrounding vehicle, it is displayed as if the vehicle suddenly appeared even though the vehicle gradually moved and entered the range recognized. The

  The reason why the lane change process is not displayed is that when displaying the surrounding vehicles, the vehicle display is always fixed at the center of the lane so that it is easy to understand, and whether the vehicle recognition device is also on the lane. This is because the method is technically easy and does not cost much.

  However, it is dangerous for a display device in a range that the driver can see while driving to make a display that surprises the driver. Then, suddenly appearing or disappearing of the vehicle image displayed on the in-vehicle display device surprises the driver, and the conventional display device described above has a problem from the viewpoint of safe driving.

In the vehicle surrounding information display device proposed in Japanese Patent Application Laid-Open No. 9-915696, other vehicles on the lanes on both sides of the own vehicle lane are displayed. No measures were taken to surprise the driver when the car disappeared.
Japanese Patent Laid-Open No. 9-915696, paragraphs 0015 to 0016, FIG.

  The present invention has been made in view of the above points, and an object thereof is to provide an other vehicle position display device that does not impair the safety of traveling.

  The other vehicle position display device in the vicinity of the own vehicle position according to the present invention displays the position of the vehicle existing in a predetermined range of the own vehicle traveling lane and the adjacent lane in association with the own vehicle position. In the position display device, the display of the other vehicle is made less noticeable than the normal display during a predetermined period when the other vehicle enters or exits the predetermined range.

  In the other vehicle position display device, a display that is less conspicuous than the normal display is a display in which the display of the other vehicle is thinned out with dots.

  Further, in the other vehicle position display device, a display that is less conspicuous than the normal display is a display that displays the other vehicle smaller than a normal image.

  In the other vehicle position display device, the display of the other vehicle is a blinking display that is less noticeable than the normal display.

  Further, in each of the other vehicle position display devices, a display that is less noticeable than the normal display is gradually changed over time.

  In each of the other vehicle position display devices, when the other vehicle enters or exits the predetermined range, it is notified by voice.

  According to the other vehicle position display device in the vicinity of the own vehicle position of the present invention, even with a simple configuration in which the display position of the other vehicle is displayed at the center of the lane, the driver is not surprised by a sudden change in display, and safe driving Can be secured.

  The best mode for carrying out the present invention will be described below with reference to examples.

  FIG. 1 is a block diagram showing another vehicle position display device in the vicinity of the own vehicle position, which is Embodiment 1 of the present invention. Reference numeral 1 shown in FIG. 1 denotes a vehicle surrounding situation analysis apparatus, which is a video signal from a front right camera 2 arranged on the right side ahead of the center of the vehicle and a front left camera 3 arranged on the left side ahead of the center of the vehicle. Is entered.

  Based on the input video signal, the host vehicle surrounding situation analysis device 1 determines the distance between the front vehicles (with triangulation) and the opposite of the vehicle within a predetermined range of the driving lane 1 of the own vehicle and the driving lane 2 on the right side thereof. The inter-vehicle distance is calculated, and the calculated signal is output to the display control device 4. When the inter-vehicle distance exceeds a predetermined value, a signal for recognizing that there is no vehicle in the lane is obtained.

  The display control device 4 causes the display device 5 to display an image for displaying the vehicles in the lanes 1 and 2 shown in FIG. When a vehicle appears in lane 1 and lane 2, the voice generator is activated to notify the driver. In the above image display, during a predetermined time (500 ms) after a vehicle appears in the oncoming lane, the display of the oncoming lane vehicle is displayed semi-transparently with dots thinned out as shown in FIG.

  FIG. 3 shows a routine of the vehicle display process for lane 2 of the display control device 4. This routine is executed every 1 ms. The vehicle display processing routine for lane 1 is also executed every 1 ms, but a detailed description thereof is omitted.

  When the vehicle display processing routine for lane 2 is executed, first, at step S1, it is determined whether or not there is a vehicle in a predetermined range of lane 2 that is the opposite lane, and if not, this routine is terminated. In this case, no vehicle is displayed on lane 2. If it is determined in step S1 that the vehicle is in the predetermined range of lane 2 that is the opposite lane, the process proceeds to step S2.

  In step S2, it is determined whether the oncoming vehicle flag is 1. If it is 1, the process proceeds to step S5, and if not, the process proceeds to step S3. In step S3, the oncoming vehicle flag is set to 1, and the process proceeds to step S4. In step S4, the translucent timer is set to 500 and the process proceeds to step S7. In step S7, the vehicle in lane 2 is displayed translucently as shown in FIG. 2 at the corresponding position, and this routine is terminated.

  In step S5, it is determined whether or not the translucent timer is 0. If it is 0, the process proceeds to step S8, and if it is not 0, the process proceeds to step S6. In step S6, the translucent timer is decremented and the process proceeds to step S7. In step S8, the vehicle in lane 2 is normally displayed in a full dot display at the corresponding position, and this routine is terminated.

  FIG. 4 shows a display state when a vehicle appears from a state where there is no vehicle in a predetermined range of the traveling lane 2. In this case, initially, as shown in FIG. 4A, the forward vehicle is displayed only on the traveling lane 1, and no vehicle is displayed on the traveling lane 2. As shown in FIG. 4B, the vehicle is displayed translucently in the travel lane 2 for 500 ms after the vehicle appears in the travel lane 2. In FIG. 4, the translucent display is indicated by a dotted line. The same display is performed for FIGS. 5 to 7 described later.

  When 500 ms has passed since the vehicle appeared on the traveling lane 2, all the dots are displayed on the traveling lane 2 as shown in FIG. In FIGS. 4 to 7, all dot display is indicated by a solid line. Thus, when a vehicle appears in the driving lane 2, a semi-transparent display is made inconspicuous at first, so that the driver will not be surprised and no danger will arise.

  FIG. 5 is a diagram showing a display transition state of the other vehicle position display device according to the second embodiment of the present invention. In this example, the hardware configuration is the same as that of the first embodiment. In this example, the display of the vehicle ahead of the traveling lane 1 is displayed translucently for 500 ms after the vehicle appears in the traveling lane 1.

  That is, before the vehicle ahead of the traveling lane 1 appears, as shown in FIG. 5A, the oncoming vehicle or the passing vehicle is displayed only on the traveling lane 2, and the vehicle is not displayed on the traveling lane 1. As shown in FIG. 5B, the vehicle is displayed in a translucent manner for 500 ms after the vehicle appears in the travel lane 2 as shown in FIG. When 500 ms has passed since the vehicle appeared in the traveling lane 2, all the vehicles are displayed in the traveling lane 2 as shown in FIG. Thus, when a vehicle appears in the driving lane 1, a semi-transparent display is made inconspicuous at first, so that the driver will not be surprised and no danger will arise.

  FIG. 6 is a diagram showing a display transition state of the other vehicle position display device according to the third embodiment of the present invention. In this example, the hardware configuration is the same as that of the first embodiment. In this example, the display of the vehicle ahead of the traveling lane 1 is displayed translucently, for example, for 1000 ms after the vehicle disappears from the traveling lane 1. Further, for 500 ms after the vehicle appears in the travel lane 2, the vehicle in the travel lane 2 is displayed in a translucent manner, and all the dots after 500 ms are displayed.

  That is, as long as there is a vehicle in front of the traveling lane 1, as shown in FIG. As shown in FIG. 6B, the vehicle is displayed semi-transparently in the travel lane 1 and the travel lane 2 for 500 ms after the vehicle ahead of the travel lane 1 changes lanes and appears in the travel lane 2.

  When 1000 ms elapses after the vehicle disappears from the travel lane 1 and 500 ms elapses after the vehicle appears in the travel lane 2, all the dots are displayed in the travel lane 1 as shown in FIG. In this way, when the vehicle changes lanes from the driving lane 1 to the driving lane 2, an inconspicuous translucent display is made at first, so that the driver is not surprised and no danger arises.

  FIG. 7 is a diagram showing a display transition state of the other vehicle position display device according to the fourth embodiment of the present invention. In this example, the hardware configuration is the same as that of the first embodiment. In this example, the vehicle in the travel lane 2 is displayed in a translucent state for 1000 ms after the vehicle disappears from the travel lane 2. Further, for 500 ms after the vehicle appears in the travel lane 1, the vehicle in the travel lane 1 is displayed in a translucent manner, and all the dots that have passed 500 ms are displayed.

  That is, as long as there is a vehicle in front of the traveling lane 2, as shown in FIG. As shown in FIG. 7B, the vehicle is displayed translucently in the traveling lane 1 and the traveling lane 2 for 500 ms after the vehicle ahead of the traveling lane 2 changes lanes and appears in the traveling lane 1.

  When 1000 ms elapses after the vehicle disappears from the travel lane 2 and 500 ms elapses after the vehicle appears in the travel lane 1, all the dots are displayed in the travel lane 2 as shown in FIG. Thus, when the vehicle changes lanes from the driving lane 2 to the driving lane 1, a semi-transparent display is made inconspicuous at first, so that the driver is not surprised and no danger arises.

  In the embodiment, the time for semitransparent display of the vehicle is set to 500 ms or 1000 ms, but may be set to any other time. Further, the degree of translucency may be gradually changed as time passes.

  Further, although the front and side vehicles on the right of the host vehicle traveling lane and the vehicle in front of the host vehicle traveling lane are detected, the host vehicle traveling lane, the left and right lanes, and the rear vehicle may be detected. Further, the size of the image may be changed as a display that makes other vehicles less noticeable, or a blinking display may be used. The color of the image may be changed, or a dedicated image may be displayed. Furthermore, the effect of the present invention can be obtained without voice notification, and voice notification may be stopped by switching.

It is a block diagram which shows the other vehicle position display apparatus of the vicinity of the own vehicle position of Example 1 of this invention. It is a figure which shows the display image of the other vehicle of the other vehicle position display apparatus. It is a flowchart which shows operation | movement of the other vehicle position display apparatus. It is a figure which shows the display transition state of the other vehicle position display apparatus. It is a figure which shows the display transition state of the other vehicle position display apparatus of Example 2 of this invention. It is a figure which shows the display transition state of the other vehicle position display apparatus of Example 3 of this invention. It is a figure which shows the display transition state of the other vehicle position display apparatus of Example 4 of this invention. It is a figure which shows the example of a display of the other vehicle position display apparatus near the conventional own vehicle position. It is a figure which shows the other example of a display of the other vehicle position display apparatus near the conventional own vehicle position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Self-vehicle surroundings condition analysis apparatus 2 Front right camera 3 Front left camera 4 Display control apparatus 5 Display apparatus 6 Sound generator

Claims (6)

In the other vehicle position display device in the vicinity of the own vehicle position that displays the position of the vehicle existing in the predetermined range of the own vehicle traveling lane and the adjacent lane in association with the own vehicle position, when the other vehicle enters the predetermined range or The other vehicle position display device in the vicinity of the own vehicle position, wherein the display of the other vehicle is less noticeable than a normal display during a predetermined period when leaving. The other vehicle position display device in the vicinity of the own vehicle position according to claim 1, wherein the display less conspicuous than the normal display is a display in which dots of the other vehicle are thinned out. The other vehicle position display device in the vicinity of the own vehicle position according to claim 1, wherein the display less conspicuous than the normal display is a display smaller than the normal image. The other vehicle position display device in the vicinity of the host vehicle position according to claim 1, wherein the display less noticeable than the normal display is a blinking display of the other vehicle. The other vehicle position display device according to any one of claims 1 to 4, wherein a display that is less conspicuous than the normal display is gradually changed over time. The other vehicle position display device according to any one of claims 1 to 5, wherein the other vehicle position is notified by voice when another vehicle enters or leaves the predetermined range.

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