JP2018016205A - Speed display control device, speed display device, speed display control method, and speed display control program - Google Patents

Abstract

A speed display control device is provided that enables a driver to easily recognize the running speed of the vehicle displayed in an image when the speed limit of the running path of the vehicle changes. A speed limit acquisition unit (10) acquires the speed limit of a travel route of the own vehicle. The travel speed acquisition unit 11 acquires the travel speed of the own vehicle. The display control unit 12 controls the display mode of the speed display image in which the pointer indicates the speed indicator to display the running speed of the own vehicle and the speed limit indicator is displayed at a predetermined reference position. When a change in the speed limit is recognized, the display mode of the speed display image is controlled so that an index indicating the changed speed limit is displayed at a predetermined reference position while rotating the speed display image. [Selection drawing] Fig. 1

Description

  The present invention relates to a speed display control device, a speed display device, a speed display control method, and a speed display control program for controlling a display mode of an image indicating the speed of a vehicle.

  Conventionally, what was described in patent document 1 as this kind of technique is known. Patent Document 1 describes a display device that displays the speed limit of a travel path on a speedometer that displays the travel speed of the host vehicle as an image.

  The scale indicating the speed of the host vehicle having the same value as the speed limit is set at the reference position near the top of the arc-shaped index line to which the scale is assigned, so that the speed limit is displayed on the image of the speedometer. For example, when the recognition speed is 60 km / h, the scale indicating the speed of 60 km / h in the image of the speedometer is the reference position.

  In this display device, when the display position of the scale indicating the minimum display speed (0 km / h) of the speedometer does not change, the interval from the display position of the minimum display speed scale to the reference position is independent of the change in the recognition speed. It becomes constant.

  Therefore, when the speed limit changes, the mutual interval of the scales indicating the speed between the display position of the display minimum speed scale and the reference position changes. That is, when the speed limit decreases, the scale interval increases, and when the speed limit increases, the scale interval decreases.

JP 2010-143407 A

  The conventional display device does not employ a technique for alerting the driver that the speed limit has changed and that the interval between the scales indicating the speed has changed. For this reason, it is difficult for the driver to notice the change in the interval between the scales indicating the speed. As a result, the driver is confused when recognizing the traveling speed of the host vehicle, and it is difficult to easily recognize the traveling speed of the host vehicle.

  An object of the present invention is to provide a speed display control device, a speed display device, and a speed that allow a driver to easily recognize the traveling speed of the host vehicle displayed as an image when the speed limit of the traveling path of the host vehicle changes. A display control method and a speed display control program are provided.

  The present invention includes a travel speed acquisition unit that acquires a travel speed of the host vehicle, a speed limit acquisition unit that acquires a limit speed of a travel path on which the host vehicle travels, and a plurality of speeds from a first speed to a second speed. An index string in which indices indicating the respective speeds are arranged in a predetermined shape, the position in the index string indicating the traveling speed of the host vehicle is indicated by a pointer, and the index indicating the speed limit is indicated in the index string A display control unit that controls a display mode of a speed table image displayed at a predetermined reference position set in advance, wherein the display control unit changes the speed limit of the travel path from the first speed limit to the second speed limit. When it is recognized that the speed has changed to the speed limit, the index indicating the second speed limit is displayed from the first speed display image in which the index indicating the first speed limit is displayed at the reference position. Rotate to the second speed display image displayed on Controlling the display form to switch to provide a speed display control device according to claim.

  The present invention provides a speed display device comprising the speed display control device and a display unit that displays the speed display image controlled by the speed display control device.

  The present invention acquires a traveling speed of the host vehicle, acquires a speed limit of a traveling path on which the host vehicle travels, and sets an index indicating each of a plurality of speeds from a first speed to a second speed in a predetermined shape. The indicator row arranged in the indicator row, the position in the indicator row showing the traveling speed of the host vehicle is indicated by a pointer, and the indicator showing the speed limit is set to a predetermined reference position in the indicator row Control is performed so that a speed table image to be displayed is displayed on the display unit, and when it is recognized that the speed limit of the travel path has changed from the first speed limit to the second speed limit, the first speed limit The index indicating the second speed display image displayed at the reference position is displayed so that the index indicating the second speed limit is rotated from the first speed display image displayed at the reference position to the second speed display image displayed at the reference position. Speed display control method characterized by controlling aspect To provide.

  The present invention provides a computer operating as a speed display control device with a function of acquiring a traveling speed of the host vehicle, a function of acquiring a speed limit of a traveling path on which the host vehicle travels, and a first speed to a second speed. An index string in which indices indicating each of a plurality of speeds up to a speed are arranged in a predetermined shape, a position in the index string indicating the traveling speed of the host vehicle is indicated by a pointer, and an index indicating the speed limit is indicated A function of controlling the display unit to display a speed table image to be displayed at a predetermined reference position set in advance in the index row; and a speed limit of the travel path from a first speed limit to a second speed limit When it is recognized that the index has changed, the index indicating the second speed limit is displayed at the reference position from the first speed display image in which the index indicating the first speed limit is displayed at the reference position. To the second speed display image Providing a rate display control program, characterized in that to realize the function of controlling the display mode switched by moving the.

  According to the speed display control device, the speed display device, the speed display control method, or the speed display control program of the present invention, when the speed limit of the travel path of the host vehicle is changed, the driver displays the image of the host vehicle displayed. The speed can be easily recognized.

It is a block diagram which shows the structure of the speed display control apparatus which concerns on embodiment of this invention. FIG. 3 is a diagram schematically illustrating the vicinity of a driver's seat of a vehicle, and is a diagram illustrating a configuration example of a display unit 2. It is a figure which shows an example of the display mode of the speed display image whose driving speed of the own vehicle is 55 km / h, and the speed limit of a driving path is 60 km / h. When the speed limit changes from 60 km / h to 40 km / h, when the speed display mode is rotating, a speed display image with a speed limit of 60 km / h and a speed limit of 40 km / h It is a figure which shows an example of a display mode with a speed display image. It is a figure which shows an example of the display aspect of the speed display image whose speed limit is 60 km / h, and the speed display image whose speed limit is 40 km / h when the speed display image shown in FIG. 4 further rotates. FIG. 6 is a diagram illustrating an example of a display form of a speed display image in which the traveling speed of the host vehicle is 55 km / h and the speed limit of the traveling path is 40 km / h when the rotation of the speed display image illustrated in FIG. 5 is completed. is there. It is a figure which shows an example of the display mode of the speed display image whose driving speed of the own vehicle is 55 km / h, and the speed limit of a driving path is 60 km / h. When the speed limit changes from 60 km / h to 80 km / h, when the speed display mode is rotating, a speed display image with a speed limit of 60 km / h and a speed limit of 80 km / h It is a figure which shows an example of a display mode with a speed display image. It is a figure which shows an example of the display aspect of the speed display image whose speed limit is 60 km / h, and the speed display image whose speed limit is 80 km / h when the speed display image shown in FIG. 8 further rotates. FIG. 10 is a diagram illustrating an example of a display form of a speed display image in which the traveling speed of the host vehicle is 55 km / h and the speed limit of the traveling path is 80 km / h when the rotation of the speed display image illustrated in FIG. 9 is completed. is there. It is a figure which shows an example of the display mode of the speed display image whose driving speed of the own vehicle is 55 km / h, and the speed limit of a driving path is 60 km / h. When the speed limit changes from 60 km / h to 40 km / h, when the speed display mode is rotating, a speed display image with a speed limit of 60 km / h and a speed limit of 40 km / h It is a figure which shows another example of a display mode with a speed display image. It is a figure which shows another example of the display mode of the speed display image whose speed limit is 60 km / h, and the speed display image whose speed limit is 40 km / h when the speed display image shown in FIG. 12 further rotates. FIG. 14 is a diagram illustrating an example of a display form of a speed display image in which the traveling speed of the host vehicle is 55 km / h and the speed limit of the traveling path is 40 km / h when the rotation of the speed display image illustrated in FIG. 13 is completed. is there. It is a figure which shows an example of the display mode of the speed display image whose driving speed of the own vehicle is 55 km / h, and the speed limit of a driving path is 60 km / h. When the speed limit changes from 60 km / h to 80 km / h, when the speed display mode is rotating, a speed display image with a speed limit of 60 km / h and a speed limit of 80 km / h It is a figure which shows another example of a display mode with a speed display image. It is a figure which shows another example of the display aspect of the speed display image whose speed limit is 60 km / h, and the speed display image whose speed limit is 80 km / h when the speed display image shown in FIG. 16 further rotates. FIG. 17 shows another example of a display form of a speed display image in which the traveling speed of the host vehicle is 55 km / h and the speed limit of the traveling path is 80 km / h when the rotation of the speed display image shown in FIG. FIG. It is a figure for demonstrating an example of the timing of rotation of the speed display image in the 1st case. It is a figure for demonstrating the other example of the timing of rotation of the speed display image in the 1st case. It is a figure for demonstrating an example of the timing of the rotation of the speed display image in the 2nd case. It is a figure for demonstrating an example of the timing of the rotation of the speed display image in the 3rd case. It is a figure for demonstrating the other example of the timing of the rotation of the speed display image in the 3rd case. It is a figure for demonstrating an example of the timing of rotation of the speed display image in the 4th case. It is a flowchart which shows the control procedure of the speed display control apparatus which concerns on embodiment of this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

(Embodiment)
With reference to FIG. 1, the structure of the speed display control apparatus which concerns on embodiment of this invention is demonstrated.

  In FIG. 1, the speed display control device 1 controls the display mode of a speed display image displayed on the display unit 2. The speed display control device 1 can be configured by a computer having resources such as a CPU and a storage device that control various operation processes based on a control program.

  The speed display control device 1 controls the operation of the entire speed display control device 1 including the operation of controlling the display mode of the speed display image by executing a control program stored in a storage device (not shown). . The speed display control method according to the embodiment can be realized by the speed display control device 1 executing a speed display control program included in the control program.

  The speed display control program may be provided by being recorded on a recording medium, or distributed via a communication line such as the Internet. The speed display control program recorded on the recording medium or distributed through the communication line can be stored in a storage device (not shown) of the speed display control device 1.

  The display unit 2 is configured separately from the speed display control device 1 and includes, for example, a device as shown in FIG. FIG. 2 is a diagram schematically showing a schematic state around the driver's seat of the host vehicle.

  The display unit 2 can be configured by a rear view monitor 20 that displays an image behind the vehicle captured by a camera attached to the vehicle on a liquid crystal screen or the like. The display unit 2 can be configured by a head-up display that displays various information as a virtual image 22 in front of the driver. The display part 2 can be comprised by the display part 24 of the vehicle-mounted navigation apparatus provided in the center console 23, for example. The display part 2 can be comprised by the display part 26 provided in the cluster panel 25 which gathered various meters required for a driving | operation.

  The display unit 2 can be configured by a device that can be used in the vehicle, in addition to the device provided in the vehicle. For example, although not shown, the display unit 2 can be configured by a display unit of a portable navigation device and a display unit of a portable information terminal carried by a person.

  The display unit 2 can be integrated with the speed display control device 1. In this case, the integrated speed display control device 1 and the display unit 2 constitute a speed display device.

  Returning to FIG. 1, the speed display control device 1 includes a speed limit acquisition unit 10, a travel speed acquisition unit 11, and a display control unit 12. The functions of these units are realized by the speed display control device 1 in which the hardware resources of the computer described above and the control program described above cooperate.

  The speed limit acquisition unit 10 acquires the speed limit of the travel path on which the host vehicle travels.

  Here, the speed limit is an upper limit of the speed of a car or a light vehicle determined for each section by a road sign or a road sign. In the road traffic law sign, the speed limit is the number written in the red circle. In the section where the speed limit is not displayed, the legal speed determined by the Road Traffic Law for each vehicle is the speed limit.

  The legal speed is 60 km / h for ordinary roads and 100 km / h for high-speed automobile national roads, which is determined by the Road Traffic Law. However, in the case of large trucks, the national highway speed is 80 km / h.

  The speed limit acquisition unit 10 acquires the speed limit by any method shown below.

  When the navigation device is mounted on the vehicle, the speed limit acquisition unit 10 acquires the speed limit using the navigation device. The speed limit acquisition unit 10 inputs and acquires the speed limit of the travel path stored in the navigation device together with the map data from the navigation device.

  When the navigation device has a function of communicating with an external providing server that provides road information, the speed limit acquiring unit 10 is configured to travel from the external providing server as external data by communicating with the external providing server. Enter and get the speed limit.

  When the speed limit obtaining unit 10 has a communication function for communicating with the outside, the speed limit obtaining unit 10 communicates with the external providing server that provides the road information described above, and thereby the road speed is acquired from the external providing server. Enter the speed limit and get it.

  The speed limit obtaining unit 10 recognizes the speed limit displayed on the road sign or the road sign described above based on the captured image of the road sign or the road sign taken by the in-vehicle camera (not shown). Enter recognition information. The speed limit acquisition unit 10 acquires the speed limit based on the speed limit recognition information.

  The speed limit acquisition unit 10 gives the acquired speed limit to the display control unit 12.

  The traveling speed acquisition unit 11 acquires the current traveling speed of the host vehicle by any method described below.

  The traveling speed acquisition unit 11 acquires the traveling speed of the host vehicle from, for example, a vehicle speed sensor (not shown) included in the host vehicle via a CAN (Controller Area Network). The vehicle speed sensor generates a vehicle speed signal corresponding to the vehicle speed of the host vehicle, and gives the generated vehicle speed signal to the traveling speed acquisition unit 11. The traveling speed acquisition unit 11 acquires the traveling speed of the host vehicle based on the vehicle speed signal.

  The traveling speed acquisition unit 11 acquires the current position information of the host vehicle, and calculates and acquires the traveling speed of the host vehicle based on the temporal transition of the acquired current position information of the host vehicle. The traveling speed acquisition unit 11 receives a signal transmitted from a GPS (Global Positioning System) satellite and acquires current position information of the host vehicle based on the received signal.

  The travel speed acquisition unit 11 gives the acquired travel speed of the host vehicle to the display control unit 12.

  The display control unit 12 determines whether or not the speed limit given from the speed limit acquisition unit 10 has changed. When recognizing the change in the speed limit, the display control unit 12 controls the display mode of the speed display image displayed on the display unit 2 based on the current traveling speed of the host vehicle and the change in the speed limit.

  Hereinafter, with reference to FIG. 3 to FIG. 10, the control of the display mode of the speed display image performed by the display control unit 12 and the quadrangular prism image displayed integrally with the speed display image will be described.

  3 to 10 are diagrams schematically showing changes in one display mode of the speed display image PS (PS3, PS6, PS7, PS10) and the quadrangular prism image PQ that the display control unit 12 controls the display mode. is there. In the following description, when speed display images are not distinguished, they are described as speed display images PS. When they are distinguished, speed display images PS3, speed display images PS6, speed display images PS7, speed display images are displayed. It is described as PS10.

  3 to 10, the speed display image PS includes a circular frame line 31, an index 32, and a pointer 33.

  The speed display image PS has an index row in which indices 32 each indicating a plurality of speeds from the first speed to the second speed are arranged in a predetermined shape. The first speed is 0 km / h, and the second speed is a predetermined speed of 0 km / h or higher. The predetermined shape is, for example, an upward arc shape.

  The speed display image PS indicates the position in the mark sequence indicating the traveling speed of the host vehicle with a pointer, and displays an index 32 indicating the speed limit at a predetermined reference position 36 set in advance in the index string.

  The circular frame line 31 is a reference line for displaying the index 32. The index 32 includes a scale line 32a and a number 32b. The plurality of indicators 32 are arranged in an arc shape inside the frame line 31 and constitute an indicator row.

  The frame line 31 may not be provided, and the array shape of the index row in which the plurality of indices 32 are arrayed may be, for example, an upward convex curve or straight line in addition to the arc shape.

  The scale line 32a is displayed so as to be orthogonal to the frame line 31, indicates each speed allocated to the frame line 31, and indicates an allocation position of each speed. The number 32b is displayed near the end of the scale line 32a and indicates the speed numerically.

  The pointer 33 rotates clockwise or counterclockwise inside the frame 31 with the base 35 as a rotation center according to the traveling speed of the host vehicle, and indicates the index 32 at the tip of the pointer 33. The driver recognizes the current traveling speed of the host vehicle by visually recognizing the speed of the index indicated by the tip of the pointer 33.

  With this configuration, the speed display image PS displays the current traveling speed of the host vehicle.

  In the speed display image PS, the index 32 indicating the speed limit is displayed at a predetermined reference position 36 set in advance on the frame line 31. The reference position 36 can be set at an arbitrary position on the frame line 31. In one display example of FIGS. 3 to 10, the reference position 36 is set at the uppermost part of the frame line 31 as viewed from the driver. Therefore, the index 32 of the reference position 36 set at the top of the frame 31 indicates one speed of each speed of the host vehicle and indicates the speed limit of the travel path on which the host vehicle travels.

In FIG. 3, for example, an index 32 indicating a speed limit of 60 km / h is displayed. In FIG. 6, an index 32 indicating a speed limit of 40 km / h, for example, is displayed at the top of the frame 31. In FIG. 7, for example, an index 32 indicating a speed limit of 60 km / h is displayed. In FIG. 10, an index 32 indicating a speed limit of 80 km / h, for example, is displayed at the top of the frame 31.
When the display control unit 12 recognizes that the speed limit has changed from the first speed limit to the second speed limit, the display control unit 12 switches the speed display image PS. When the speed limit changes, the display control unit 12 changes the index 32 indicating the second speed limit from the first speed display image in which the index 32 indicating the first speed limit is displayed at the reference position 36 to the reference position 36. The display form is controlled so as to rotate and switch to the displayed second speed display image.

  The speed display image PS is displayed on the side surfaces 37 to 39 of the quadrangular prism image PQ.

  The quadrangular prism image PQ is displayed in a quadrangular column display mode that is viewed three-dimensionally when the viewer looks down on the quadrangular prism.

  Above the upper surface 40 of the quadrangular prism image PQ, a running speed image 41 that indicates the current running speed of the host vehicle is displayed. 3 to 10 show an example in which the current speed of the host vehicle is 55 km / h, for example. The traveling speed image 41 may not be displayed.

  The quadrangular prism image PQ changes its display form so as to rotate clockwise or counterclockwise about a central axis 43 passing through the centers of both the upper surface 40 and the lower bottom surface 42 of the quadrangular column. The quadrangular prism image PQ changes the display form so as to rotate when the speed limit acquired by the speed limit acquiring unit 10 changes. With the change in the display form, the speed display image PS is displayed so as to rotate integrally with the quadrangular prism image PQ.

  Accordingly, the display form of the speed display image PS changes so as to rotate together with the square note image PQ when the speed limit changes. In the speed display image PS, an index 32 indicating the speed limit after the change according to the change in the display form is displayed at the reference position 36, that is, the uppermost part of the frame line 31.

  3-6 is a figure which shows an example when the speed limit which the speed limit acquisition part 10 acquired changes so that it may become slow from 60 km / h to 40 km. 3 to 6, it is assumed that the current traveling speed of the host vehicle does not change at 55 km / h even if the speed limit changes.

  When the speed limit changes so as to decrease, the display form of the speed display image PS changes so as to rotate, for example, counterclockwise.

  In FIG. 3, it is assumed that the current travel speed of the host vehicle is 55 km / h, and the speed limit of the travel path of the host vehicle is 60 km / h, for example. Therefore, the speed display image PS3 indicates that the speed limit is 60 km / h, and the current traveling speed of the host vehicle is 55 km / h. In the speed display image PS3, an index 32 indicating a speed limit of 60 km / h is displayed at the top of the frame 31. The speed display image PS3 having such a display mode is displayed on the side surface 37 of the quadrangular prism image PQ.

  In such a display mode, when the speed limit of the travel path on which the host vehicle travels changes from 60 km / h to 40 km / h, the speed display image PS3 is displayed by the arrows in FIGS. 4 and 5 together with the quadrangular prism image PQ. As shown, the display form changes so as to rotate counterclockwise.

  FIG. 4 is a diagram illustrating a display mode of the speed display images PS3 and PS6 and the quadrangular column image PQ when the speed display image PS3 and the quadrangular column image PQ illustrated in FIG. 3 are rotated about 30 ° counterclockwise. is there.

  FIG. 5 shows a display mode of the speed display images PS3, PS6 and the quadrangular prism image PQ when the speed display images PS3 and PS6 and the quadrangular prism image PQ shown in FIG. 4 are rotated about 30 ° counterclockwise. FIG.

  FIG. 6 is a diagram showing a display mode of the speed display image PS6 and the square column image PQ when the speed display images PS3 and PS6 and the square column image PQ shown in FIG. 5 are rotated about 30 ° counterclockwise. is there. That is, FIG. 6 shows a display mode of the speed display image PS6 and the square column image PQ when the speed display image PS3 and the square column image PQ shown in FIG. 3 are rotated by 90 ° counterclockwise. It is a figure which shows a display mode when is complete | finished.

  4 and 5, the speed display image PS6 is displayed on the side surface 38 adjacent to the left side of the paper surface of the side surface 37 of the quadrangular prism image PQ. The speed display image PS6 is a speed display image indicating that the speed limit has changed from 60 km / h to 40 km / h. Therefore, the indicator 32 indicating the speed limit 40 km / h after the change is displayed at the top of the frame 31.

  At this time, if the position of the scale line 32a indicating the speed of 0 km / h is not different from the speed display image PS3 in the speed display image PS6, the interval between the scale lines 32a of the speed display image PS6 is larger than that of the speed display image PS3. Disseminated.

  The display control unit 12 rotates the speed display image PS3 and switches to the speed display image PS6, so that the speed display image PS3 and the speed display image PS6 are both rotated and displayed. The display mode of PS3 and PS6 is controlled. Thus, the driver can recognize the traveling speed and the speed limit of the host vehicle before and after the change in the speed limit when visually recognizing the speed display images PS3 and PS6.

  7-10 is a figure which shows an example when the speed limit which the speed limit acquisition part 10 acquired changes so that it may become quick from 60 km / h to 80 km. 7 to 10, the current traveling speed of the host vehicle is assumed to be 55 km / h.

  When the speed limit changes so as to increase, the display form of the speed display image PS changes so as to rotate clockwise, for example.

  In FIG. 7, it is assumed that the current traveling speed of the host vehicle is 55 km / h, and the speed limit of the traveling path of the host vehicle is 60 km / h, for example. Therefore, in the speed display image PS7, the speed limit indicates 60 km / h, and the current traveling speed of the host vehicle indicates 55 km / h. In the speed display image PS7, an index 32 indicating a speed limit of 60 km / h is displayed at the top of the frame 31. The speed display image PS7 having such a display mode is displayed on the side surface 37 of the quadrangular prism image PQ.

  In such a display mode, when the speed limit of the travel path on which the host vehicle travels changes from 60 km / h to 80 km / h, the speed display image PS7 as shown in FIGS. 8 and 9 together with the quadrangular prism image PQ. The display form changes so as to rotate clockwise.

  FIG. 8 is a diagram showing a display mode of the speed display images PS7 and PS10 and the square column image PQ when the speed display image PS7 and the square column image PQ shown in FIG. 7 are rotated about 30 ° clockwise. .

  FIG. 9 is a diagram showing a display mode of the speed display images PS7 and PS10 and the quadrangular column image PQ when the speed display images PS7 and PS10 and the quadrangular column image PQ shown in FIG. 8 are rotated about 30 ° clockwise. It is.

  FIG. 10 is a diagram illustrating a display mode of the speed display image PS10 and the square column image PQ when the speed display image PS10 and the square column image PQ illustrated in FIG. 9 are rotated about 30 ° counterclockwise. That is, FIG. 10 shows a display mode of the speed display image PS10 and the square column image PQ when the speed display images PS7 and PS10 and the square column image PQ shown in FIG. It is a figure which shows the display mode when a motion is complete | finished.

  8 and 9, the speed display image PS10 is displayed on the side surface 39 adjacent to the right of the paper surface of the side surface 37 of the quadrangular prism image PQ. The speed display image PS10 is a speed display image indicating that the speed limit has changed from 60 km / h to 80 km / h. Therefore, in the speed display image PS10, the index 32 indicating the speed limit of 80 km / h after the change is displayed at the top of the frame 31. At this time, in the speed display image PS10, if the position of the scale line 32a indicating the speed of 0 km / h is not different from the speed display image PS7, the interval between the scale lines 32a of the speed display image PS10 is larger than that of the speed display image PS7. It is narrowed.

  The display control unit 12 rotates the speed display image PS7 and, during the switching to the speed display image PS10, displays the speed display image so as to rotate and display both the speed display image PS7 and the speed display image PS10. Controls the display mode of PS7 and PS10. Thus, the driver can recognize the traveling speed and the speed limit of the host vehicle before and after the change in the speed limit when visually recognizing the speed display images PS7 and PS10.

  The speed display image PS is rotated clockwise when the speed limit is changed, and the speed display image PS is rotated counterclockwise when the speed limit is changed. May be.

  The rotation direction of the quadrangular prism image PQ and the speed display image PS displayed on the side thereof is not limited to the clockwise direction or the counterclockwise direction. For example, as shown in FIGS.

  In this case, the quadrangular prism image PQ and the speed display image PS are rotated upward or downward on the paper surface about the central axis 44 passing through the centers of both the side surface 38 and the side surface 39 of the quadrangular column. The display form changes.

  11 is the same as FIG. 3, and FIG. 14 is the same as FIG. FIGS. 12 and 13 are diagrams showing display modes of the speed display images PS3 and PS6 and the quadrangular prism image PQ when the speed display images PS3 and PS6 and the quadrangular prism image PQ are rotating.

  11 to 14, the quadrangular prism image PQ and the speed display image PS3 shown in FIG. 11 rotate downward as indicated by arrows in FIGS. When the quadrangular column image PQ starts to rotate and then rotates 90 ° downward, the rotation ends, and as shown in FIG. 14, the speed display image PS6 is displayed on the upper surface 40 of the quadrangular column image PQ. The

  The display control unit 12 rotates the speed display image PS3 downward and switches the speed display image PS6 to the speed display image PS6 so that both the speed display image PS3 and the speed display image PS6 are rotated and displayed. The display mode of the display images PS3 and PS6 is controlled. Thus, the driver can recognize the traveling speed and the speed limit of the host vehicle before and after the change in the speed limit when visually recognizing the speed display images PS3 and PS6.

  15 is the same as FIG. 7, and FIG. 18 is the same as FIG. FIGS. 16 and 17 are diagrams showing display modes of the speed display images PS7 and PS10 and the quadrangular prism image PQ when the speed display images PS7 and PS10 and the quadrangular prism image PQ are rotating.

  15 to 18, the quadrangular prism image PQ and the speed display image PS7 shown in FIG. 15 rotate upward as indicated by arrows in FIGS. When the quadrangular column image PQ starts to rotate and then rotates 90 ° upward, the rotation ends, and as shown in FIG. 14, the speed display image PS10 is displayed on the bottom surface 42 of the quadrangular column image. .

  The display control unit 12 rotates the speed display image PS7 upward and switches the speed display image PS10 to the speed display image PS10 so that both the speed display image PS7 and the speed display image PS10 are rotated and displayed. The display mode of the display images PS7 and PS10 is controlled. Thus, the driver can recognize the traveling speed and the speed limit of the host vehicle before and after the change in the speed limit when visually recognizing the speed display images PS7 and PS10.

  The speed display image PS may be rotated upward when the speed limit is changed, and the speed display image PS may be rotated downward when the speed limit is changed. .

  In the above description, the shape of the image that is displayed integrally with the speed display image PS and rotated is a quadrangular prism, but is not limited to a quadrangular prism. It may be.

  Next, the timing for starting and ending the rotation of the quadrangular prism image PQ and the speed display image PS will be described.

  The display control unit 12 controls the start and end timing of the rotation of the quadrangular prism image PQ and the speed display image PS as follows.

  FIG. 19 is a diagram illustrating an example of the rotation timing in the first case on the traveling path of the host vehicle. The first case is when the following first requirement and second requirement, or first requirement and third requirement are satisfied.

  The first requirement is that the speed limit of the traveling path of the host vehicle is clear based on information related to the traveling path of the host vehicle that is given from the outside by a navigation device or communication.

  The second requirement is that the travel route of the host vehicle 190 is not set by the navigation device, and the travel route of the host vehicle 190 is estimated as an extension of the travel route 191 on which the host vehicle 190 is currently traveling. In the example illustrated in FIG. 19, the travel path estimated as an extension of the travel path 191 is a travel path 192 that extends above the paper surface following the travel path 191.

  The third requirement is a case where the travel path of the host vehicle 190 is set by the navigation device as an extension of the travel path on which the host vehicle 190 is currently traveling. In the example illustrated in FIG. 19, the travel path set as an extension of the travel path 191 is the travel path 192.

  In FIG. 19, the traveling path 193 intersects at the connection point between the traveling path 191 and the traveling path 192. The travel path 191 has a speed limit of 60 km / h. The travel path 192 has a speed limit of 40 km / h. Here, the intersection of the travel path 191 and the travel path 192 and the travel path 193 is regarded as a speed limit switching point PA where the speed limit changes.

  The display control unit 12 recognizes the speed limit switching point PA based on map information given from the outside by a navigation device or communication.

  For example, the rotation start point 19B is set in front by a predetermined distance from the speed limit switching point PA. The rotation start point 19B can be set at an arbitrary position.

  In such a travel environment of the travel path and speed limit, the display control unit 12 determines whether or not the host vehicle 190 has reached the rotation start point 19B based on the current position information of the host vehicle 190. When the host vehicle 190 reaches the rotation start point 19B, the quadrangular prism image PQ and the speed display image PS start to rotate.

  The display control unit 12 determines whether the host vehicle 190 has reached the speed limit switching point PA based on the current position information of the host vehicle 190. When the host vehicle 190 reaches the speed limit switching point PA, the quadrangular prism image PQ and the speed display image PS end turning.

  The display control unit 12 controls the rotation so that the rotation of the quadrangular prism image PQ and the speed display image PS starts at the rotation start point 19B and ends at the speed limit switching point PA.

  The rotation start point 19B can be set a predetermined time before the time when the host vehicle 190 reaches the speed limit switching point PA.

  In this case, the display control unit 12 determines the time when the host vehicle 190 reaches the speed limit switching point PA based on the current travel speed of the host vehicle 190 and the distance between the current position of the host vehicle 190 and the speed limit switching point PA. calculate. Based on the time when the host vehicle 190 arrives at the speed limit switching point PA and the current time, the display control unit 12 sets a time that is a predetermined time before the time when the host vehicle 190 reaches the speed limit switching point PA. It is determined whether or not. Thereby, the display control part 12 discriminate | determines whether the own vehicle 190 arrived at the rotation start point 19B.

  FIG. 20 is a diagram showing another example of the rotation timing in the first case. In FIG. 20, the traveling path of the host vehicle 190 and the traveling environment of the speed limit are the same as those in FIG.

  The rotation timing feature shown in FIG. 19 ends at the speed limit switching point PA, whereas the rotation timing feature shown in FIG. 20 has an intermediate point between the start and end of rotation. This is a point that becomes a speed limit switching point PA.

  The intermediate point between the start and end of rotation refers to the time when the speed display image PS and the quadrangular prism image PQ have rotated clockwise or counterclockwise by about 45 ° after the rotation is started. . That is, if the rotation speed is constant, the time from the start of rotation until reaching the intermediate point is equal to the time from the intermediate point to the end of rotation.

  The display control unit 12 sets the rotation start point 20B where the rotation starts so that the intermediate point between the start and end of the rotation becomes the speed limit switching point PA.

  For example, the rotation start point 20B can be set as a point in front by a predetermined distance set in advance from the speed limit switching point PA. Alternatively, the rotation start point 20B can be set as a point before a predetermined time set in advance from the time when the host vehicle 190 reaches the speed limit switching point PA.

  In the example described with reference to FIG. 19, the rotation start point 20 </ b> B is described with reference to FIG. 19 by setting the intermediate point of rotation as the speed limit switching point PA instead of the point where the rotation ends. It can be obtained in the same manner.

  The turning end point 20C is determined according to the traveling speed and turning speed of the host vehicle 190. For example, the rotation end point 20C rotates from the speed limit switching point PA if the traveling speed and rotation speed of the host vehicle 190 are constant between the rotation start point 20B and the rotation end point 20C. This is a point separated by a distance between the start point 20B and the speed limit switching point PA.

  In such a travel environment of the travel path and speed limit, the display control unit 12 determines whether or not the host vehicle 190 has reached the rotation start point 20B based on the current position information of the host vehicle 190. When the host vehicle 190 reaches the rotation start point 20B, the quadrangular prism image PQ and the speed display image PS start to rotate. Thereafter, when the host vehicle 190 reaches the rotation end point 20C, the quadrangular prism image PQ and the speed display image PS end the rotation.

  The display control unit 12 rotates the square column image PQ and the speed display image PS so that the rotation starts at the rotation start point 20B and the intermediate point between the start and end of rotation is the speed limit switching point PA. Control the movement.

  FIG. 21 is a diagram illustrating an example of a rotation timing in the second case.

  In FIG. 21, the travel route of the host vehicle 190 and the travel environment of the speed limit are the same as those in FIG.

  The second case is when the following fourth and fifth requirements, or the fourth and sixth requirements are satisfied.

  The fourth requirement is a case where the speed limit acquisition unit 10 recognizes a change in the speed limit of the traveling path of the host vehicle 190 based on the captured images of road signs and road markings captured by the in-vehicle camera.

  In the example illustrated in FIG. 21, when the speed limit acquisition unit 10 is traveling on the road 191, the speed limit acquisition unit 10 is based on the captured image of the sign 210 whose speed limit on the road 192 is 40 km / h. It is assumed that a speed limit of 192 has been acquired. The speed limit switching point PA is the same as in FIG.

  The fifth requirement and the sixth requirement are the same as the second requirement and the third requirement of the first case described with reference to FIG.

  In the case of the second case, the point where the rotation ends is the speed limit switching point PA as in FIG. The rotation start point 21 </ b> B is a point where the in-vehicle camera images the sign 210 and the speed limit acquisition unit 10 recognizes the change in speed limit.

  In such a travel environment of the travel route and the speed limit, the display control unit 12 determines that the host vehicle 190 has reached the rotation start point 21B based on whether or not the speed limit given from the speed limit acquisition unit 10 has changed. It is determined whether or not. That is, when the display control unit 12 recognizes that the speed limit has changed, the display control unit 12 determines that the host vehicle 190 has reached the rotation start point 21B.

  When the host vehicle 190 reaches the rotation start point 21B, the quadrangular prism image PQ and the speed display image PS start to rotate. Thereafter, when the host vehicle 190 reaches the speed limit switching point PA, the rotation of the quadrangular prism image PQ and the speed display image PS ends.

  The display control unit 12 rotates so that the rotation starts when the host vehicle 190 reaches the rotation start point 21B and ends when the host vehicle 190 reaches the speed limit switching point PA. To control.

  FIG. 22 is a diagram illustrating an example of the timing of rotation in the third case. The third case is when the following seventh and eighth requirements are satisfied.

  The seventh requirement is the same as the first requirement of the first case described with reference to FIG.

  The eighth requirement is when the navigation device sets the travel route of the host vehicle 190 as a travel route that is not an extension of the travel route on which the host vehicle 190 is currently traveling, for example, a travel route that turns right or left. . In the example illustrated in FIG. 22, the travel path of the host vehicle 190 is set as a travel path that travels by turning right on a travel path 193 that intersects the travel path 191 on which the host vehicle 190 is currently traveling.

  In FIG. 22, the traveling speed of the traveling path 191 is 60 km / h. The travel path 193 has a speed limit of 40 km / h. Accordingly, here, as in the case of FIG. 19, the intersection where the traveling path 191 and the traveling path 193 intersect is regarded as the speed limit switching point PA where the speed limit changes.

  The display control unit 12 recognizes the speed limit switching point PA based on map information given from the outside by a navigation device or communication.

  The rotation start point 22B can be set in the same manner as the example described in FIG.

  In such a travel environment of the travel path and speed limit, the display control unit 12 determines whether or not the host vehicle 190 has reached the rotation start point 22 </ b> B based on the current position information of the host vehicle 190. When the host vehicle 190 reaches the rotation start point 22B, the quadrangular prism image PQ and the speed display image PS start to rotate.

  The display control unit 12 determines whether the host vehicle 190 has reached the speed limit switching point PA based on the current position information of the host vehicle 190. When the host vehicle 190 reaches the speed limit switching point PA, the quadrangular prism image PQ and the speed display image PS end turning.

  The display control unit 12 controls the rotation so that the rotation of the quadrangular prism image PQ and the speed display image PS starts at the rotation start point 19B and ends at the speed limit switching point PA.

  FIG. 23 is a diagram illustrating another example of the rotation timing in the third case. In FIG. 23, the traveling path of the host vehicle 190 and the traveling environment of the speed limit are the same as those in FIG.

  The rotation timing feature shown in FIG. 22 ends at the speed limit switching point PA, whereas the rotation timing feature shown in FIG. 23 has an intermediate point between rotation start and end. This is a point that becomes a speed limit switching point PA.

  The intermediate point between the start and end of rotation is the same as the example described in FIG.

  The display control unit 12 sets the rotation start point 23B at which the rotation starts so that the intermediate point between the start and end of the rotation becomes the speed limit switching point PA.

  For example, the rotation start point 23B can be set as a point in front by a predetermined distance set in advance from the speed limit switching point PA. Alternatively, the rotation start point 23B can be set as a point before a predetermined time set in advance from the time when the host vehicle 190 reaches the speed limit switching point PA.

  In the example described with reference to FIG. 19, the rotation start point 23 </ b> B is described earlier with reference to FIG. 19 by setting the intermediate point of rotation as the speed limit switching point PA instead of the point where the rotation ends. It can be obtained in the same manner as described above.

  The rotation end point 23C is determined according to the rotation start point 23B, the traveling speed of the host vehicle 190, and the rotation speed. For example, the rotation end point 23C rotates from the speed limit switching point PA if the traveling speed and rotation speed of the host vehicle 190 are constant between the rotation start point 23B and the rotation end point 23C. This is a point separated by a distance between the start point 23B and the speed limit switching point PA.

  In such a travel environment of the travel route and the speed limit, the display control unit 12 determines whether or not the host vehicle 190 has reached the rotation start point 23B based on the current position information of the host vehicle 190. When the host vehicle 190 reaches the rotation start point 23B, the quadrangular prism image PQ and the speed display image PS start to rotate. Thereafter, when the host vehicle 190 reaches the rotation end point 23C, the quadrangular column image PQ and the speed display image PS end the rotation.

  The display control unit 12 rotates the square column image PQ and the speed display image PS so that the rotation starts at the rotation start point 23B and the intermediate point between the start and end of rotation is the speed limit switching point PA. Control the movement.

  FIG. 24 is a diagram illustrating an example of rotation timing in the fourth case. In FIG. 24, the travel route of the host vehicle 190 and the travel environment of the speed limit are the same as in FIG. The fourth case is when the following ninth requirement and tenth requirement are satisfied.

  The ninth requirement is the same as the fourth requirement in the second case described with reference to FIG.

  In the example illustrated in FIG. 24, the host vehicle 190 travels on the travel path 191 and turns right at the speed limit switching point PA at the intersection where the travel path 191 and the travel path 193 intersect. The speed limit acquisition unit 10 acquires the speed limit of the travel path 193 based on the captured image of the sign 210 that the speed limit of the travel path 193 is 40 km / h when the host vehicle 190 is traveling on the travel path 193. Shall.

  The tenth requirement is the same as the eighth requirement of the third case described with reference to FIG.

  In the case of the fourth case, the rotation start point 24B is a point where the in-vehicle camera images the sign 210 and the speed limit acquisition unit 10 recognizes the change in the speed limit. The rotation end point 24C is determined according to the rotation start point 24B, the traveling speed of the host vehicle 190, and the rotation speed.

  In such a travel environment of the travel path and the speed limit, the display control unit 12 determines that the host vehicle 190 has reached the rotation start point 24B based on whether or not the speed limit given from the speed limit acquisition unit 10 has changed. It is determined whether or not. That is, when recognizing that the speed limit has changed, the display control unit 12 determines that the host vehicle 190 has reached the rotation start point 24B.

  When the host vehicle 190 reaches the rotation start point 24B, the quadrangular prism image PQ and the speed display image PS start to rotate. Thereafter, when the host vehicle 190 reaches the rotation end point 24C, the quadrangular prism image PQ and the speed display image PS end the rotation.

  The display control unit 12 controls the rotation so that the rotation of the quadrangular prism image PQ and the speed display image PS starts at the rotation start point 24B.

  FIG. 25 is a flowchart showing a procedure by which the speed display control device 1 controls the display mode of the speed display image PS.

  The series of procedures shown in the flowchart of FIG. 25 is repeatedly executed while the host vehicle is traveling.

  In FIG. 25, the travel speed acquisition unit 11 acquires the travel speed of the host vehicle in step S250. In step S250, speed limit acquisition unit 10 acquires the speed limit of the traveling path of the host vehicle. In step S250, the display control unit 12 displays the speed display image PS on the display unit 2 based on the acquired traveling speed and the speed limit.

  In step S251, the display control unit 12 determines whether or not the speed limit given from the speed limit acquisition unit 10 has changed. If the speed limit has not changed (in the case of NO), the display control unit 12 executes the determination process shown in step S251 again. When the speed limit is changing (in the case of YES), the display control unit 12 subsequently executes the process shown in step S252.

  In step S252, the display control unit 12 compares and determines the magnitude of the speed limit before the change and the speed limit after the change. When the speed limit before the change is faster than the speed limit after the change (in the case of YES), the display control unit 12 subsequently executes the process shown in step S253. If the speed limit before the change is slower than the speed limit after the change (in the case of NO), the display control unit 12 subsequently executes the process shown in step S254.

  In step S253, the display control unit 12 rotates the speed display image counterclockwise or downward, and ends a series of procedures.

  In step S254, the display control unit 12 rotates the speed display image clockwise or upward, and ends a series of procedures.

  As described above, the speed display control device 1 according to the embodiment described above displays the speed display image PS when the interval between the scale lines 32a of the index 32 of the speed display image PS changes as the speed limit changes. Move. The driver visually recognizes the rotation of the speed display image PS, so that the speed limit changes and the interval between the scale lines 32a of the index 32 of the speed display image PS changes compared to the case where the speed display image PS does not rotate. It becomes easy to notice. As a result, when the driver visually recognizes the speed display image PS, the driver can easily and quickly recognize the speed limit, the change in the speed limit, and the traveling speed of the host vehicle with respect to the speed limit.

DESCRIPTION OF SYMBOLS 1 Speed display control apparatus 2 Display part 10 Speed limit acquisition part 11 Traveling speed acquisition part 12 Display control part 32 Index 33 Pointer 36 Reference position 190 Own vehicle PS (PS3, PS6, PS7, PS10) Speed display image

Claims (8)

A traveling speed acquisition unit that acquires the traveling speed of the host vehicle;
A speed limit acquisition unit for acquiring a speed limit of a travel path on which the host vehicle travels;
An index string in which indices indicating each of a plurality of speeds from the first speed to the second speed are arranged in a predetermined shape, and the position in the index string indicating the traveling speed of the host vehicle is indicated by a pointer A display control unit that controls a display mode of a speed display image that displays an index indicating the speed limit at a predetermined reference position set in advance in the index row;
With
When the display control unit recognizes that the speed limit of the travel path has changed from the first speed limit to the second speed limit, an index indicating the first speed limit is displayed at the reference position. The display mode is controlled so that the index indicating the second speed limit is rotated from the first speed display image to the second speed display image displayed at the reference position. Speed display control device. The speed display control device according to claim 1, wherein the display control unit sets the shape of the index row to an upward convex arc shape, and sets the uppermost portion of the index row as the reference position. When the display control unit recognizes a change in which the speed limit decreases, the display control unit rotates clockwise or counterclockwise from the first speed display image to the second speed display image as viewed from the viewer. When the change of the display mode is controlled to recognize the change in which the speed limit is increased, the display mode is rotated in the reverse direction to the case where the change in which the speed limit is reduced is recognized. The speed display control apparatus according to claim 1, wherein the display form is controlled so as to be switched to the second speed display image. When the display control unit recognizes a change in which the speed limit decreases, the display control unit rotates upward or downward from the first speed display image to the second speed display image as viewed from the viewer. When the display form is controlled so as to be switched, and the change in which the speed limit is increased is recognized, the rotation is reversed in the direction opposite to the case in which the change in the speed limit is reduced, and the first speed display image The speed display control apparatus according to claim 1, wherein the display form is controlled so as to be switched to the second speed display image. While the display control unit rotates and switches from the first speed display image to the second speed display image, both the first speed display image and the second speed display image are displayed. The speed display control apparatus according to claim 1, wherein a display mode of the speed display image is controlled so as to be displayed. The speed display control device according to any one of claims 1 to 5,
A display unit for displaying the first speed display image and the second speed display image controlled by the speed display control device;
A speed display device comprising: Get the speed of your vehicle,
Obtaining a speed limit of a travel path on which the host vehicle travels,
An index string in which indices indicating each of a plurality of speeds from the first speed to the second speed are arranged in a predetermined shape, and the position in the index string indicating the traveling speed of the host vehicle is indicated by a pointer , And control to display on the display unit a speed display image for displaying the index indicating the speed limit at a predetermined reference position set in advance in the index string,
When recognizing that the speed limit of the travel path has changed from the first speed limit to the second speed limit, a first speed display in which an index indicating the first speed limit is displayed at the reference position A speed display control method, wherein a display mode is controlled so that an index indicating the second speed limit is rotated from an image to a second speed display image displayed at the reference position. To a computer that operates as a speed display control device,
A function to acquire the traveling speed of the host vehicle,
A function of acquiring a speed limit of a travel path on which the host vehicle travels;
An index string in which indices indicating each of a plurality of speeds from the first speed to the second speed are arranged in a predetermined shape, and the position in the index string indicating the traveling speed of the host vehicle is indicated by a pointer A function to control the display unit to display a speed display image for displaying an index indicating the speed limit at a predetermined reference position set in advance in the index row;
When recognizing that the speed limit of the travel path has changed from the first speed limit to the second speed limit, a first speed display in which an index indicating the first speed limit is displayed at the reference position A function of controlling a display mode so that an index indicating the second speed limit is rotated from an image to a second speed display image displayed at the reference position;
A speed display control program characterized by realizing the above.

Images