JP2015064750A - Information presentation device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information presentation device for a vehicle capable of appropriately grasping a position of an own vehicle and effectively reminding a crew of existence of an obstacle.SOLUTION: A positioning unit positions the position of an own vehicle travelling in an own vehicle travel lane so as to approach an intersection. A moving obstacle information acquisition unit (traveling vehicle information reception unit 101) moves along other vehicle travel lane that intersects with the own vehicle travel lane at the intersection to acquire moving obstacle information containing at least position information on an obstacle approaching the intersection. A view point conversion image generation unit (view point conversion image data generation unit 109) generates a view point conversion image that is an image of a plurality of sheets generated while performing rotational transfer of a view point centering around the intersection at a predetermined timing when the own vehicle and the obstacle are determined to mingle at the intersection from a view point to look forward from the own vehicle to a view point away from the own vehicle where both own vehicle and obstacle can be looked. A monitor 15 displays the view point conversion image.

Description

  The present invention relates to a vehicle information presentation device that presents information on other vehicles to a passenger.

  In Patent Document 1, when an image conversion from a bird's-eye view around the vehicle to a viewpoint from the passenger compartment is performed, how the camera viewpoint changes is expressed by an animation that moves step by step. Have been described.

JP 2012-39341 A

  With the technique described in Patent Literature 1, when the host vehicle approaches an intersection, the occupant cannot move in a different lane and notice the presence of an obstacle approaching the same intersection.

  It is an object of the present invention to provide a vehicle information presentation device that allows an occupant to notice the presence of an obstacle approaching the same intersection by moving in a different lane when the host vehicle approaches the intersection. To do.

  In order to achieve the above-described object, the vehicle information presentation device of the present invention is configured such that the host vehicle and the obstacle are viewed from the viewpoint of looking forward from the host vehicle at a predetermined timing at which the host vehicle and the obstacle are determined to intersect at an intersection. A viewpoint conversion image, which is a plurality of images generated while rotating the viewpoint around the intersection, to a viewpoint far from the host vehicle that can see both of them is generated and displayed on the display unit.

  According to the vehicle information presentation device of the present invention, when the host vehicle approaches the intersection, the occupant can move in different lanes and notice the presence of an obstacle approaching the same intersection.

It is a block diagram which shows the information presentation apparatus for vehicles of one Embodiment. It is a figure which shows the 1st example of the outline | summary of the traveling vehicle information provision server 20 in FIG. It is a figure which shows the 2nd example of the outline | summary of the traveling vehicle information provision server 20 in FIG. It is a block diagram which shows the functional internal structure of the control part 10 in FIG. It is a figure which shows an example of the image displayed on the monitor, when another vehicle is hidden in a building etc. and cannot be seen. It is a figure which shows the 1st example of the viewpoint conversion image displayed on the monitor, when another vehicle approaches the own vehicle. It is a figure which shows the 2nd example of the viewpoint conversion image displayed on the monitor, when another vehicle approaches the own vehicle. It is a figure which shows the 3rd example of the viewpoint conversion image displayed on the monitor, when another vehicle approaches the own vehicle. It is a top view which shows the positional relationship of the own vehicle and other vehicle which are shown in each of FIGS. It is a figure for demonstrating the rotational movement of the viewpoint at the time of producing | generating the viewpoint conversion image shown in FIGS. It is a flowchart which shows the operation | movement in the information presentation apparatus for vehicles of one Embodiment.

  Hereinafter, a vehicle information presentation apparatus according to an embodiment will be described with reference to the accompanying drawings. In FIG. 1, a positioning unit 11 measures the current position of the host vehicle. For example, the positioning unit 11 receives GPS radio waves from GPS satellites with a GPS antenna, and measures the current position of the host vehicle.

  Positioning data D11 obtained by the positioning unit 11 measuring the current position of the host vehicle is input to the control unit 10. The positioning unit 11 may measure the current position of the host vehicle by a positioning method other than GPS, such as a gyro. The positioning unit 11 may measure the current position by combining GPS and a gyro. The function of the positioning unit 11 may be provided inside the control unit 10.

  The map information holding unit 12 holds map information. The map information is preferably information that can be displayed in three dimensions (3D). The map information holding unit 12 may be an arbitrary recording medium such as a hard disk drive, a semiconductor memory, or an optical disk. The map data D12 output from the map information holding unit 12 is input to the control unit 10.

  A camera 13 that captures an image of the front side of the host vehicle from the host vehicle is attached to the host vehicle. Shooting data D13 obtained by shooting the front of the host vehicle with the camera 13 is input to the control unit 10.

  The communication unit 14 communicates with the traveling vehicle information providing server 20 based on control by the control unit 10. The traveling vehicle information provision server 20 provides information related to a vehicle traveling on a road, as will be described later. The communication unit 14 communicates with the image providing server 30 based on control by the control unit 10. The image providing server 30 provides actual image data obtained by photographing a road.

  The communication unit 14 supplies the traveling vehicle data D20 provided from the traveling vehicle information providing server 20 to the control unit 10. The traveling vehicle data D20 includes traveling vehicle data of other vehicles. The communication unit 14 supplies the real image data D30 provided from the image providing server 30 to the control unit 10.

  Connected to the control unit 10 are a monitor (display unit) 15 for displaying a caution image, which will be described later, and a speaker 16 for generating a caution sound, which will be described later.

  Here, the outline | summary of the traveling vehicle information provision server 20 is demonstrated using FIG. 2, FIG. As shown in FIG. 2, cameras 202 a to 202 d that photograph the respective lanes are arranged in the vicinity of the intersection 201. The cameras 202a to 202d capture the respective lanes and transmit the captured data to the traveling vehicle information providing server 20 wirelessly or by wire.

  In the example of FIG. 2, the camera 202 a transmits shooting data obtained by photographing the vehicle 203 a to the traveling vehicle information provision server 20, and the camera 202 b transmits photographing data obtained by photographing the vehicle 203 b to the traveling vehicle information provision server 20.

  The traveling vehicle information providing server 20 analyzes the photographing data transmitted from the cameras 202a to 202d, and detects vehicles approaching the intersection 201 (here, vehicles 203a and 203b) and their positions. The traveling vehicle information providing server 20 can detect an image of the vehicle included in the shooting data by pattern recognition.

  The traveling vehicle information provision server 20 indicates which lane the vehicle approaching the intersection 201 exists, and transmits traveling vehicle data D20 including the position information of the approaching vehicle to the communication unit 14.

  The traveling vehicle information providing server 20 detects the type of vehicle (passenger car, truck, bus, etc.) and the color of the vehicle body, and transmits the traveling vehicle data D20 including information indicating the vehicle type and information indicating the color of the vehicle body to the communication unit 14. May be sent to.

  FIG. 3 shows a method of detecting a vehicle approaching the intersection 201 by a method different from that in FIG. As shown in FIG. 3, communication devices 204 a to 204 d that communicate with vehicles traveling in the respective lanes are disposed in the vicinity of the intersection 201.

  In FIG. 3, the vehicles 205a and 205c are traveling in the lane. A vehicle traveling in the lane is equipped with a vehicle information transmission unit 215. The vehicle information transmission unit 215 receives GPS radio waves in the same manner as the positioning unit 11 and measures the current position of the host vehicle. It is preferable that the vehicle information transmission unit 215 wirelessly transmits identification information for identifying the host vehicle in addition to the position information of the host vehicle.

  The identification information is, for example, one or more of information indicating the type of vehicle, information indicating the vehicle name, and information indicating the color of the vehicle body.

  The communication devices 204a to 204d receive the vehicle information including the position information and the identification information of each vehicle transmitted from the vehicle information transmission unit 215 mounted on the vehicle approaching the intersection 201, and receive the vehicle information. It transmits to the traveling vehicle information provision server 20 by radio | wireless or a wire communication.

  The traveling vehicle information providing server 20 indicates in which lane a vehicle approaching the intersection 201 exists, and transmits traveling vehicle data D20 including identification information and position information of the approaching vehicle to the communication unit 14.

  A specific operation of the control unit 10 will be described with reference to FIG. FIG. 4 shows a functional internal configuration of the control unit 10. The control unit 10 may be configured with a microcomputer. The operation of the control unit 10 described below can also be realized by a computer program.

  In FIG. 4, the traveling vehicle information receiving unit 101 receives the positioning data D11 output from the positioning unit 11 and the traveling vehicle data D20 supplied from the communication unit 14. The traveling vehicle information receiving unit 101 travels in a lane (another vehicle traveling lane) that intersects the own vehicle traveling lane different from the lane (the own vehicle traveling lane) in which the own vehicle travels in the traveling vehicle data D20. Information on a vehicle (another vehicle) approaching 201 is extracted. The traveling vehicle information receiving unit 101 outputs other vehicle data D101.

  The other vehicle data D101 is input to the virtual image data generation unit 102, the determination unit 103, the image data superimposition unit 104, and the detection unit 111.

  The virtual image data generation unit 102 generates virtual image data D102 of another vehicle based on the other vehicle data D101. If the traveling vehicle data D20 (other vehicle data D101) includes information indicating the type of vehicle or information indicating the vehicle name, virtual image data D102 corresponding to the size and shape of the other vehicle can be generated. If the traveling vehicle data D20 (other vehicle data D101) includes information indicating the color of the vehicle body, virtual image data D102 corresponding to the color of the other vehicle can be generated.

  In addition to other vehicle data D101, positioning data D11 and map data D12 output from map information holding unit 12 are input to determination unit 103. The map data D12 includes information on the planar size and height of a building adjacent to the road. Therefore, when the determination unit 103 sees another vehicle at a position based on the other vehicle data D101 from the position of the own vehicle based on the positioning data D11, the other vehicle can be seen, or the other vehicle cannot be seen as a blind spot of the building. Can be determined.

  The determination unit 103 supplies determination data D103 indicating whether or not another vehicle is visible to the image data superimposing unit 104. In addition to other vehicle data D101 and determination data D103, positioning data D11, shooting data D13, and virtual image data D102 are input to the image data superimposing unit 104.

  The image data superimposing unit 104 superimposes the virtual image data D102 on the shooting data D13 when the determination data D103 indicates that no other vehicle is visible. The image data superimposing unit 104 refers to the position information indicated by the positioning data D11 and the position information indicated by the other vehicle data D101, and displays the virtual image data at the position where the other vehicle is traveling in the image of the captured data D13. A virtual image by D102 can be superimposed.

  Note that the shooting range by the camera 13 is known in advance, and each position within the shooting range by the camera 13 can be specified based on the position information indicated by the positioning data D11. Therefore, a virtual image showing another vehicle can be superimposed on the image of the shooting data D13.

  When the determination data D103 indicates that another vehicle can be seen, the image data superimposing unit 104 outputs the shooting data D13 as it is. The image data superimposing unit 104 outputs the photographic data D13 superimposed with the virtual image data D102 or the photographic data D13 as it is as the camera image data D104.

  Based on the positioning data D11 and other vehicle data D101, the detection unit 111 detects the occurrence of a situation in which the host vehicle and the other vehicle enter the same intersection within a predetermined time difference. When detecting the occurrence of a situation in which the host vehicle and another vehicle enter the same intersection within a predetermined time difference, the detection unit 111 detects the detection data D111 as an image data switching unit 105, an audio data generation unit 106, and viewpoint-converted image data generation. Supplied to the unit 109.

  The image data switching unit 105 supplies the camera image data D104 to the monitor 15. As will be described later, when the detection data D111 is supplied from the detection unit 111, the image data switching unit 105 monitors the viewpoint conversion image data D109 output from the viewpoint conversion image data generation unit 109 instead of the camera image data D104. 15 is supplied.

  FIG. 5 shows an example of an image displayed on the monitor 15 when another vehicle is hidden behind a building or the like and cannot be seen. Other vehicles traveling from the right direction to the left direction in the lane intersecting with the lane in which the host vehicle is traveling are not actually visible in the building 50. However, since the image data superimposing unit 104 outputs the camera image data D104 in which the virtual image data D102 is superimposed on the shooting data D13, the other vehicle V102i based on the virtual image is displayed.

  Returning to FIG. 4, the image receiving unit 107 receives the real image data D <b> 30 and supplies it to the viewpoint-converted image data generating unit 109. In addition to the actual image data D30, the map data D12 and the own vehicle data D110 output from the own vehicle information holding unit 110 are input to the viewpoint conversion image data generation unit 109.

  The own vehicle data D110 is, for example, one or more of information indicating the type of vehicle, information indicating the vehicle name, and information indicating the color of the vehicle body. In the example shown in FIG. 4, the host vehicle information holding unit 110 is provided in the control unit 10, but a nonvolatile memory outside the control unit 10 may be used as the host vehicle information holding unit.

  The viewpoint conversion image data generation unit 109 includes a virtual image data generation unit 1090. The virtual image data generation unit 1090 generates virtual image data of the host vehicle based on the host vehicle data D110. If the host vehicle data D110 includes information indicating the type of vehicle or information indicating the vehicle name, virtual image data corresponding to the size and shape of the host vehicle can be generated. If the host vehicle data D110 includes information indicating the color of the vehicle body, virtual image data corresponding to the color of the host vehicle can be generated.

  Similarly to the virtual image data generation unit 102, the virtual image data generation unit 1090 generates virtual image data of another vehicle based on the other vehicle data D101.

  In FIG. 4, for the sake of convenience, the virtual image data generation unit 102 and the virtual image data generation unit 1090 are separated, but may be configured by one virtual image data generation unit.

  When the detection data D111 is supplied from the detection unit 111, the viewpoint conversion image data generation unit 109 generates viewpoint conversion image data D109 representing an image as illustrated in FIGS.

  FIG. 6A shows a first example of an actual image based on the shooting data D13. In FIG. 6A, the other vehicle V101 is traveling from the right direction to the left direction in the lane that intersects the lane in which the host vehicle is traveling. When FIG. 6A is viewed in plan, the host vehicle V110 and the other vehicle V101 are in a positional relationship as shown in FIG.

  6B to 6D show virtual images based on the viewpoint conversion image data D109 generated by the viewpoint conversion image data generation unit 109. FIG. 6 (b) to 6 (d), V101i and V110i are respectively a virtual image other vehicle (virtual image other vehicle) in which the other vehicle V101 is represented by virtual image data generated by the virtual image data generation unit 1090. The own vehicle (virtual image own vehicle) is shown.

  The virtual image data generation unit 1090 generates virtual image data representing the background image of the virtual image in FIGS. 6B to 6D based on the map data D12.

  The viewpoint conversion image data generation unit 109 looks at both the virtual image host vehicle V110i and the virtual image other vehicle V101i shown in FIG. 6D from the viewpoint from the host vehicle V110 shown in FIG. Viewpoint-converted image data D109 is generated in which the viewpoint is sequentially moved to the viewpoint capable of performing

  Specifically, as shown in FIG. 6B, the viewpoint-converted image data generation unit 109 moves the viewpoint from the viewpoint of the host vehicle V110 leftward by a predetermined amount, as shown in FIG. Virtual image data representing the background image is sequentially generated while sequentially moving the viewpoint to the position of the final viewpoint shown in (d). The predetermined amount for moving the viewpoint may be set as appropriate.

  At this time, as shown in FIG. 10A, the viewpoint-converted image data generation unit 109 rotates the viewpoint in the horizontal direction around the intersection 301, specifically, around the center point 301c of the intersection 301. Let The viewpoint-converted image data generation unit 109 sets a predetermined rotational position at which the host vehicle V110 and the other vehicle V101 can be viewed when viewing the direction of the intersection 301 as the final viewpoint position.

  The viewpoint conversion image data generation unit 109 adds virtual image other vehicle V101i that can be seen from each viewpoint, or virtual image data of the virtual image other vehicle V101i and the virtual image host vehicle V110i to the virtual image data representing the background image. Superimpose.

  In FIG. 6A, the other vehicle V101 is located on the right side with respect to the host vehicle V110. Therefore, as shown in FIG. 10A, the other vehicle V101 rotates clockwise toward the lane where the other vehicle V101 does not exist. It is preferable to rotate the viewpoint.

  As described above, the viewpoint conversion image data generation unit 109 spends a predetermined time from the viewpoint from the host vehicle V110 to the final viewpoint at which both the virtual image host vehicle V110i and the virtual image other vehicle V101i can be viewed. Then, viewpoint-converted image data D109 of an image in which the viewpoint is sequentially moved is generated. The image in which the viewpoint is sequentially moved is preferably a moving image, and the position of the final viewpoint may be set as appropriate.

  The viewpoint conversion image data generation unit 109 represents the background image of the actual image based on the actual image data D30 provided from the image providing server 30, instead of generating virtual image data representing the background image based on the map data D12. Image data may be generated.

  If the positional relationship between the host vehicle V110 and the other vehicle V101 is determined, a background image of a necessary real image is determined. The image request unit 108 generates viewpoint-converted image data D109 in the image providing server 30 based on the position information of the host vehicle V110 indicated by the positioning data D11 and the position information of the other vehicle V101 indicated by the other vehicle data D101. Request for the actual image data D30 necessary for the above.

  The actual image data D30 transmits the requested actual image data D30 to the communication unit 14. The image receiving unit 107 receives the image data D30 and supplies it to the viewpoint conversion image data generation unit 109. As a result, the viewpoint-converted image data generation unit 109 can generate viewpoint-converted image data D109 using a background image of the actual image based on the actual image data D30, instead of the virtual image data based on the map data D12.

  In this case, (b) to (d) in FIG. 6 are in a state where the virtual image other vehicle V101i and the virtual image host vehicle V110i are superimposed on the background image of the real image.

  FIG. 7A shows a second example of an actual image based on the shooting data D13. In FIG. 7A, the other vehicle V101 is traveling from the left direction to the right direction in the lane that intersects the lane in which the host vehicle travels. When FIG. 7A is viewed in plan, the host vehicle V110 and the other vehicle V101 are in a positional relationship as shown in FIG. 9B.

  As shown in FIG. 7B, the viewpoint-converted image data generation unit 109 is shown in FIG. 7D from a state where the viewpoint is moved a predetermined amount in the right direction when viewed from the viewpoint from the host vehicle V110. Virtual image data representing the background image is sequentially generated while sequentially moving the viewpoint to the position of the final viewpoint.

  At this time, the viewpoint converted image data generation unit 109 rotates the viewpoint in the horizontal direction around the intersection 301 (center point 301c) as shown in FIG. The viewpoint-converted image data generation unit 109 sets a predetermined rotational position at which the host vehicle V110 and the other vehicle V101 can be viewed when viewing the direction of the intersection 301 as the final viewpoint position.

  The viewpoint conversion image data generation unit 109 adds virtual image other vehicle V101i that can be seen from each viewpoint, or virtual image data of the virtual image other vehicle V101i and the virtual image host vehicle V110i to the virtual image data representing the background image. Superimpose.

  In FIG. 7A, the other vehicle V101 is located on the left side with respect to the host vehicle V110. Therefore, as shown in FIG. 10B, the other vehicle V101 is counterclockwise on the lane side where the other vehicle V101 does not exist. It is preferable to rotate the viewpoint around.

  In (b) to (d) of FIG. 7, the viewpoint-converted image data generation unit 109 can finally view both the virtual image host vehicle V110i and the virtual image other vehicle V101i from the viewpoint from the host vehicle V110. Viewpoint conversion image data D109 of an image in which the viewpoint is sequentially moved over a predetermined time until the viewpoint is generated.

  Similarly, in (b) to (d) of FIG. 7, the viewpoint conversion image data generation unit 109 generates image data representing the background image of the actual image generated based on the actual image data D30 provided from the image providing server 30. It may be used to generate viewpoint conversion image data D109.

  FIG. 8A shows a third example of an actual image based on the shooting data D13. In FIG. 8A, one other vehicle V101 travels from the left to the right in the lane intersecting the lane on which the host vehicle travels, and the other one other vehicle V101 moves from the right to the left. Driving in the direction. When FIG. 8A is viewed in plan, the host vehicle V110 and the two other vehicles V101 are in a positional relationship as shown in FIG. 9C.

  As shown in FIG. 8B, the viewpoint-converted image data generation unit 109 moves the viewpoint from the host vehicle V110 upward by a predetermined amount, and finally looks from the sky shown in FIG. 8D. Virtual image data representing a background image in which the viewpoint is sequentially moved upward to the position of the viewpoint is generated.

  At this time, the viewpoint-converted image data generation unit 109 rotates the viewpoint in the vertical direction about the intersection 301 (center point 301c) as shown in FIG. The viewpoint-converted image data generation unit 109 sets a predetermined rotational position at which the host vehicle V110 and the two other vehicles V101 can be viewed as the final viewpoint position when viewing the direction of the intersection 301.

  The viewpoint conversion image data generation unit 109 superimposes virtual image data of the virtual image other vehicle V101i and the virtual image host vehicle V110i on the virtual image data representing the background image.

  In FIG. 8A, since the other vehicle V101 is located on both the left side and the right side of the host vehicle V110, the viewpoint is viewed from the viewpoint from the host vehicle V110 as shown in FIG. It is preferable to rotate it upward.

  Also in (b) to (d) of FIG. 8, the viewpoint conversion image data generation unit 109 provides a bird's-eye view of the entire two virtual image other vehicles V101i and the virtual image host vehicle V110i from the viewpoint from the host vehicle V110. The viewpoint-converted image data D109 of the image in which the viewpoint is sequentially moved over a predetermined time until the final viewpoint in the sky capable of being generated is generated.

  Similarly, in (b) to (d) of FIG. 8, the viewpoint conversion image data generation unit 109 generates image data representing the background image of the actual image generated based on the actual image data D30 provided from the image providing server 30. It may be used to generate viewpoint conversion image data D109.

  Returning to FIG. 4, the viewpoint converted image data D 109 generated by the viewpoint converted image data generation unit 109 is input to the image data switching unit 105. The image data switching unit 105 selectively switches between the camera image data D104 and the viewpoint conversion image data D109 and outputs the result. When the detection data D111 is not supplied from the detection unit 111, the image data switching unit 105 selects the camera image data D104. When the detection data D111 is supplied from the detection unit 111, the image data switching unit 105 selects the viewpoint conversion image data D109.

  As shown in FIGS. 9A to 9C, the image data switching unit 105 assumes that the detection unit 111 causes the host vehicle V110 and the other vehicle V101 to enter the same intersection 301 with a difference within a predetermined time. When the occurrence of the situation is detected, the camera image data D104 is switched to the viewpoint converted image data D109.

  As a result, the image displayed on the monitor 15 is switched from the actual image based on the photographic data D13 to the viewpoint converted image based on the viewpoint converted image data D109, as described with reference to FIGS. For example, when the host vehicle V110 passes the intersection 301, the viewpoint conversion image may be returned to the real image.

  The images shown in (b) to (d) of FIG. 6, (b) to (d) of FIG. 7, and (b) to (d) of FIG. 8 are caution images that call attention to a passenger such as a driver. . According to the present embodiment, the occupant can see an image in which the viewpoint is sequentially moved over a predetermined time instead of suddenly changing the image, and thus accurately grasps the position of the host vehicle. be able to. The occupant can accurately grasp the positional relationship between the host vehicle V110 and the other vehicle V101 based on the positional relationship between the virtual image host vehicle V110i and the virtual image other vehicle V101i.

  According to the present embodiment, the occupant can be effectively aware of the presence of the other vehicle V101 by switching from the actual image based on the shooting data D13 output from the camera 13 to the viewpoint conversion image.

  In this embodiment, in order to notify the occupant by voice of switching to the caution image, the following configuration is provided. When the detection data D111 is supplied from the detection unit 111, the audio data generation unit 106 generates the audio data D106 of the caution voice that urges the occupant to pay attention and outputs it from the speaker 16.

  The caution sound may be an electronic sound such as a predetermined melody, or may be a voice such as “A car is approaching from the right” or “Be careful of collision”. . The voice may be a synthesized sound.

  A configuration in which the audio data generation unit 106 generates the audio data D106 of the caution audio and outputs it from the speaker 16 is not essential, but is preferably provided.

  6 to 8 show a case where the other vehicle V101 is not hidden by the building 50 or the like and the other vehicle V101 is visible. When the other vehicle V101 is hidden behind the building 50 or the like, as described with reference to FIG. 5, the other vehicle V102i based on a virtual image is displayed.

  In the present embodiment, by providing the virtual image data generation unit 102, the determination unit 103, and the image data superimposition unit 104 in the control unit 10, the other vehicle V101 that travels in a position hidden by the building 50 or the like is displayed as a virtual image. It is configured to display. Although it is preferable that the other vehicle V102i is displayed as a virtual image, the display of the other vehicle V102i may be omitted for simplification.

  As shown in FIGS. 6 to 8, even when the other vehicle V101 can be seen from the own vehicle V110, when the own vehicle V110 and the other vehicle V101 approach the intersection 301 at substantially the same speed, the occupant moves the other vehicle V101. Sometimes it is difficult to recognize.

  According to this embodiment, the moving other vehicle V101 is recognized by presenting to the occupant a viewpoint conversion image viewed from a viewpoint where both the virtual image host vehicle V110i and the virtual image other vehicle V101i can be seen. be able to. Therefore, the present embodiment is sufficiently effective even when the configuration for displaying the other vehicle V102i by the virtual image is omitted.

  The viewpoint conversion image data generation unit 109 may generate virtual image data representing a background image in the viewpoint conversion image data D109 based only on the map data D12. In this case, the actual image data D30 is unnecessary, and the communication function with the image providing server 30 can be omitted.

  With reference to the flowchart shown in FIG. 11, the operation of the vehicle information presentation apparatus according to the embodiment will be described again. In FIG. 11, for the sake of convenience, the output processing of the attention sound is omitted.

  In FIG. 11, the control part 10 determines whether the approach of another vehicle was detected in step S1. As described above, the approach of another vehicle is a case where the host vehicle and the other vehicle are assumed to enter the same intersection with a difference within a predetermined time. If the approach of another vehicle is detected (YES), the control unit 10 shifts the process to step S2, and if the approach of another vehicle is not detected (NO), the process of step S1 is repeated.

  In step S2, the control unit 10 generates viewpoint converted image data D109 obtained by moving the viewpoint by a predetermined amount. In step S3, the control unit 10 switches the image data to be output to the monitor 15 from the camera image data D104 to the viewpoint converted image data D109.

  In step S4, the control unit 10 determines whether or not the viewpoint-converted image data D109 of the final viewpoint has been generated. If the viewpoint-converted image data D109 of the final viewpoint is generated (YES), the control unit 10 shifts the processing to step S5. If the viewpoint-converted image data D109 of the final viewpoint is not generated (NO), step S2 Repeat the process of ~ S4.

  In step S5, the control unit 10 continues to output the viewpoint converted image data D109 of the final viewpoint to the monitor 15. In step S6, the control unit 10 determines whether or not the host vehicle has passed the intersection. If it passes through the intersection (YES), the control unit 10 shifts the process to step S7, and if it does not pass through the intersection (NO), repeats the processes of steps S5 and S6.

  In step S6, the control unit 10 switches the image data output to the monitor 15 from the viewpoint converted image data D109 to the camera image data D104. The control part 10 returns a process to step S1 after step S6, and repeats the same process after that.

  In the above configuration, the traveling vehicle information receiving unit 101 is provided from the outside of the host vehicle, moves on the other vehicle traveling lane that intersects the host vehicle traveling lane at the intersection, and is on at least the lane of the obstacle approaching the intersection. It is a moving obstacle information acquisition part which acquires the moving obstacle information containing the positional information on. It is also conceivable that the own vehicle detects moving obstacle information. The other vehicle is an example of an obstacle. Obstacles include not only vehicles but also moving objects such as people and animals.

  The vehicle information presentation device of one embodiment operates as follows at a predetermined timing. The predetermined timing is preferably determined based on the position of the host vehicle measured by the positioning unit 11 and the position of the obstacle indicated by the position information acquired by the moving obstacle information acquiring unit. This is the timing at which the occurrence of a situation where an obstacle enters the intersection within a predetermined time difference is detected. That is, it is the timing when it is determined that the host vehicle and the obstacle cross at the intersection.

  The vehicle information presentation device according to an embodiment includes a viewpoint conversion image generation unit (viewpoint conversion image data generation unit 109). The viewpoint conversion image generation unit is a plurality of images that rotate the viewpoint around the intersection from a viewpoint looking forward from the own vehicle to a viewpoint away from the own vehicle where both the own vehicle and the obstacle can be seen. A certain viewpoint conversion image is generated.

  Therefore, the occupant can move in the other vehicle lane and notice the presence of an obstacle approaching the same intersection. At this time, the occupant can accurately grasp the position of the host vehicle and can accurately grasp the positional relationship between the host vehicle and the obstacle.

  Preferably, the viewpoint conversion image generation unit generates a viewpoint conversion image by rotating the viewpoint in the horizontal direction to the lane side where the obstacle is not moving. Or a viewpoint conversion image generation part produces | generates the viewpoint conversion image which is an image rotated and moved upwards from the own vehicle. In this way, it is possible to obtain a viewpoint conversion image that makes it easy to grasp the positional relationship and distance between the host vehicle and another vehicle.

  Preferably, the vehicular information presentation apparatus according to an embodiment generates a caution sound and supplies it to a speaker 16 mounted on the host vehicle (sound data) as the monitor 15 displays a viewpoint conversion image. Generator 106). In this way, the presence of an obstacle can be more effectively noticed by the occupant by the caution voice.

  The present invention is not limited to the vehicle information presentation apparatus according to the embodiment described above, and various modifications can be made without departing from the gist of the present invention. As described above, the operation of the control unit 10 may be realized by a computer program.

11 Positioning unit 15 Monitor (display unit)
16 Speaker 101 Traveling vehicle information receiving unit (moving obstacle information acquiring unit)
106 Voice data generation unit (voice generation unit)
109 Viewpoint conversion image data generation unit (viewpoint conversion image generation unit)
111 detector

Claims (5)

A positioning unit that measures the position of the host vehicle traveling in the host vehicle lane so as to approach the intersection;
A moving obstacle information acquisition unit that acquires a moving obstacle information that includes at least position information of an obstacle that moves near another vehicle traveling lane that intersects the host vehicle traveling lane at the intersection, and
The host vehicle and the obstacle can be seen from the viewpoint of looking forward from the host vehicle at a predetermined timing at which the host vehicle and the obstacle cross each other at an intersection. A viewpoint conversion image generation unit that generates a viewpoint conversion image, which is a plurality of images generated while rotating the viewpoint around the intersection,
A display unit for displaying the viewpoint-converted image;
A vehicle information presentation device comprising: Based on the position of the host vehicle measured by the positioning unit and the position of the obstacle indicated by the position information acquired by the moving obstacle information acquisition unit, the host vehicle and the obstacle are at the intersection. A detection unit for detecting the occurrence of a situation entering within a predetermined time difference;
2. The vehicle information presentation device according to claim 1, wherein when the occurrence of the situation is detected by the detection unit, the viewpoint conversion image generation unit generates the viewpoint conversion image as the predetermined timing. .   The said viewpoint conversion image generation part produces | generates the viewpoint conversion image which is an image which rotates a viewpoint in the horizontal direction to the lane side where the said obstacle is not moving, The Claim 1 or 2 characterized by the above-mentioned. Vehicle information presentation device.   The vehicle information presentation apparatus according to claim 1, wherein the viewpoint conversion image generation unit generates a viewpoint conversion image that is an image that is rotated upward from the host vehicle.   5. The voice generation unit according to claim 1, further comprising a voice generation unit that generates a caution voice and supplies the caution voice to the in-vehicle speaker as the display unit displays the viewpoint conversion image based on the viewpoint conversion image. The vehicle information presentation device according to claim 1.

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