JP3156457B2 - Vehicle route display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle route display device which is mounted on a vehicle, displays a route from a departure place to a destination, and guides the host vehicle along the route.

[0002]

2. Description of the Related Art Various devices for reducing the driver's burden have been studied and are now being mounted on vehicles. A route to a destination is stored in advance, and the route is stored in the route. There is a route display device that guides along. Then, in this route display device, when passing through an intersection or a junction, a map near the intersection and a route to be selected are displayed,
It has a function to notify the driver. Currently, there is a route display device which is provided with an image display device on an instrument panel of a vehicle and notifies a driver of a route by using the image display device. For example, JP-A-3-150699
Japanese Patent Application Laid-Open Publication No. H11-163873 discloses a device that, when two or more intersections for which route guidance is to be performed approach each other, collectively displays these intersections as one complex intersection. FIG. 8 shows a display example of this device. In this display example, two intersections 1 and 2 are close to each other, and these intersections are displayed on the same screen as a composite intersection. The set route is indicated by a thick solid line 3, and its traveling direction is indicated by an arrow 4.

[0003]

However, in the above-described apparatus, the arrow 4 indicating the course direction is only displayed at the tip of the route on the screen. There was a problem that the direction could not be known.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and has as its object to provide a vehicle route display device that can make a passenger surely recognize a guiding direction.

[0005]

Means for Solving the Problems] To achieve the foregoing objects, the route display device according to the present invention, portion and a second color for displaying the route to be induced in the first color or brightness, or
There is provided a flow display control means for dividing the display into a part to be displayed with luminance , sequentially moving the divided part in the direction of route guidance, and displaying a flow.

[0006] The moving speed of the divided part is reduced in scale.
Flow speed changing means for changing the flow speed in accordance with the flow rate. Further, the division into the two types of different display portions can be performed according to the length of the divided portion on the screen when the route is displayed on the display screen. Further, the division may be performed according to an actual distance.

[0007]

[0008]

DETAILED DESCRIPTION OF THE INVENTION The present invention has the structure as described above, and displays by dividing the guidance path into two parts, along the entire display pattern that this induction direction is sequentially moved, the flow By performing the display, the direction to be headed is notified to the passenger. Also, the moving speed of the displayed pattern is displayed on the screen.
Is changed according to the scale of the map displayed in.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments according to the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of the present apparatus. A map information storage unit 10 for storing information such as roads, place names, building names, and river names is provided, from which the stored map information can be read as needed. Further, a GPS receiver 12 using a satellite navigation system (hereinafter referred to as GPS) for measuring the current position of the vehicle, a direction sensor 14 for detecting the traveling direction of the vehicle based on geomagnetism, and a steering angle A steering sensor 16 for detecting a change course and a distance sensor 18 for detecting a travel distance based on the number of rotations of wheels are provided. Based on the detection results of these sensors, the current position / heading measurement unit 20 determines the current position of the vehicle. Confirm the position.

When performing route guidance to a destination, the destination is instructed on a screen of a display unit to be described later by the input unit 22 or is input by a place name or the like, and the current position and the traveling direction. A route from the current position calculated by the measurement unit 20 to the destination is calculated by the route calculation unit 26 included in the calculation unit 24, and the calculated route is stored in the route storage unit 28.

After inputting the destination and determining the route, actual route guidance is performed. The display control unit 32 included in the calculation unit 24 reads map information around the host vehicle from the map information storage unit 10 and displays the current host vehicle position and traveling direction and the route stored in the route storage unit 28. The information is superimposed and displayed on the display unit 30.

The display unit 30 is provided in an instrument panel near the driver's seat.
To check the position of the vehicle and obtain information about the future route.

FIG. 2 shows an example of this display. In addition, buildings and the like are displayed, but are omitted in this drawing.
The map information is controlled by the map display control unit 34 included in the display control unit 32, and is displayed on the display unit 30 as described above. The set route is indicated by a thick striped line 100. The line 100 is divided into parts 100a and 100b by two kinds of colors, and the two kinds of color parts are alternately displayed to form a striped line. The display control of the route is performed by a route display control unit 36 included in the display control unit 32 . The flow display of this route will be described later. In addition, a passage other than the route is indicated by a solid line 10.
It is indicated by 2.

The current position of the host vehicle is superimposed on the map information displayed as described above. In FIG.
The host vehicle is indicated by a circular symbol 104 and its traveling direction is indicated by a wedge symbol 106. This display control is performed by the current position / traveling direction display control unit 38.
FIG. 2 shows that the host vehicle is traveling substantially upward on the Yokote highway which is set in advance as a route.

Next, the flow display of the route by the route display control unit 36 which is characteristic of the present embodiment will be described with reference to FIGS. 3, 4 and 5. FIG. 3 is a chart showing a control flow of route flow display. When the route is set by the route calculation unit 26, the entire route is divided into sections of 500 m (S102). Further, the section of 500 m is divided into five cells (S104). Next, a number (i, j) is set to each of the divided cells (S106). i indicates a section number, and j indicates a number in the section. FIG. 4 shows an example of cells on the route set as described above. When the cell setting is completed, all the cells are temporarily displayed in yellow (S10
8) The passenger is searched and the set route is notified.

Next, the flow of the route is displayed. A flow display is shown in FIG. In each section, cells (i, 1) and (i, 2) are displayed in yellow, and the other cells (i, 3), (i, 4), and (i, 5) are colors of roads on which routes are set. Is displayed as shown in FIG. 5A (S11).
0). Next, cells (i, 2) and (i, 3) are displayed in yellow, and (i, 4), (i, 5), and (i, 1) are displayed in road color as shown in FIG. (S112). Hereinafter, steps S114, S116, and S118 are sequentially performed, and this is repeated until the vehicle reaches the destination. The display is as shown in FIG. 5, and the cells displayed in yellow sequentially move toward the destination, so that the cells appear to flow along the route. By looking at the direction of this flow, the occupant can determine which direction to go.

In this embodiment, since the route is divided by the actual distance, if the scale is changed, the speed of the flow on the screen changes accordingly. That is, when the scale is small and a wide area is displayed, the speed of the flow on the screen becomes slow. Conversely, when a large scale and a narrow area are displayed, the flow speed becomes slow. Therefore, the passenger can see the speed of this flow and estimate the approximate scale.

In the case where the route is divided not by the actual distance but by the length on the screen as in the above-described embodiment, the flow speed changing unit changes the flow speed according to the scale of the display screen. Is provided, as in the above-described embodiment,
The rider can kick Dzu guess the scale by the flow rate.

In this embodiment, the route is displayed in two colors, and in particular, one color is configured to be the road display color of the original map information. Roads are displayed in different colors depending on their type. For example, toll roads are displayed in blue, and first-class national roads are displayed in red. In this embodiment, since the original color of the road type is known, it is possible to read the type of the road set as the route.

FIG. 6 shows a case where the vehicle is running off the set route. The same components as those in FIG. 2 are denoted by the same reference numerals. In this case, if the flow is displayed, is there a destination in the direction of arrow A in the figure,
Whether it is in the direction of arrow B can be determined at a glance. If there is a destination in the direction of arrow A, it can be determined that the passenger should go straight on Yokote-dori and go right on Chuo-dori. Also, if there is a destination in the direction of arrow B, it can be seen that it is possible to go straight to Chuo-dori and turn left, but it is also possible to turn left and go to Yamanaka-dori.

FIG. 7 is a block diagram showing the configuration of another embodiment. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, an FM multiplex receiver 40 and a beacon receiver 42 for receiving information from the outside are provided. FM multiplex is
Information is transmitted from the base station to a relatively wide area, and the information content includes traffic congestion information, regulation information, parking space availability information, and the like. FM antenna 4 provided on vehicle
4 and displays the obtained information on the display unit 30. The beacon transmits radio waves or light from a beacon transmission source provided on the side of the road, and the beacon is received by the beacon antenna 46 of the vehicle. This beacon is suitable for transmitting information over a relatively small area. For example, a source is installed several hundred meters before an intersection, and information specific to the intersection, such as information on the destination and the state of an overpass, is transmitted. It is possible to Of course, it is also possible to transmit the above-described traffic congestion information and the like. The information by this beacon is also displayed on the display unit 30.

If such information from the outside includes information that there is a congested or congested section on the set route, the flow speed setting section 48 sets the flow speed of the section such as the congestion. Is controlled so as to slow down.
The passenger can see which part of the route is congested by looking at this display. It is also preferable to change the flow speed stepwise according to the degree of congestion.

In the embodiment described above, the case where the route is displayed in two colors, yellow and the color indicating the original road type, is shown. However, the route is not limited to these two colors. It is also preferable that the flow display is performed by changing the luminance instead of distinguishing the colors.

[0025]

According to the present invention, by displaying the set route in the direction from the departure point to the destination, the passenger can be quickly and reliably notified of the direction of the destination. .

Also , by changing the speed of the route flow display according to the scale of the display screen, the scale of the displayed map can be notified to the passenger.

[0027]

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of a preferred embodiment according to the present invention.

FIG. 2 is a diagram illustrating a display example of the present embodiment.

FIG. 3 is a flowchart according to a route flow display of the embodiment.

FIG. 4 is a diagram illustrating division of a set route.

FIG. 5 is a diagram illustrating a flow display.

FIG. 6 is a diagram showing a display example of the embodiment.

FIG. 7 is a configuration block diagram of another embodiment according to the present invention.

FIG. 8 is a diagram showing a display example of a conventional device.

[Explanation of symbols]

 Reference Signs List 10 map information storage unit 20 current position and heading measurement unit 24 calculation unit 30 display unit 32 display control unit 36 route display control unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) G01C 21/00 G08G 1/0969 G09B 29/00-29/10

Claims (5)

(57) [Claims] 1. A vehicle route display device for displaying a current position of an own vehicle on a map including a route from a departure point to a destination set in advance and performing route guidance, wherein the route is displayed in a first color or A flow display control unit that divides the display into a part to be displayed with luminance and a part to display with the second color or luminance, sequentially moves the whole of the divided part in the direction of route guidance, and performs flow display; And a flow speed changing means for changing the moving speed of the vehicle according to the scale. 2. The vehicle route display device according to claim 1, wherein the division is performed according to a length displayed on a screen. 3. The vehicle route display device according to claim 1, wherein the division is performed according to an actual distance. 4. A vehicle route display device for displaying a current position of a host vehicle on a map including a route from a departure point to a destination set in advance and performing route guidance, wherein the route is displayed in a first color or A flow display control unit that divides the display into a part to be displayed with the luminance and a part to display with the second color or the luminance, sequentially moves the entire divided part in the direction of the route guidance, and performs the flow display; A route display device for a vehicle, which is performed according to a length displayed on a screen. 5. A vehicle route display device for displaying a current position of a host vehicle on a map including a route from a departure point to a destination set in advance and performing route guidance, wherein the route is displayed in a first color or A flow display control unit that divides the display into a part to be displayed with the luminance and a part to display with the second color or the luminance, sequentially moves the entire divided part in the direction of the route guidance, and performs the flow display; A route display device for a vehicle, which is performed according to an actual distance.