JPH0816988A - Image display device - Google Patents

Abstract

(57) [Summary] [Purpose] The map screen display device promptly recognizes the content of a road traffic event and the location where the road traffic event occurred, and grasps changes in traffic conditions, without bothering driving operations. [Structure] A schematic diagram showing road traffic information is displayed at the location where the road traffic event occurred, and detailed information is displayed in a phrase of about two lines surrounded by callouts so that it appears from the pattern diagram. , The correspondence between the display by the detailed information surrounded by the balloon and the display by the schematic diagram is clearly shown. Further, by operating the keys of the remote controller, it is possible to switch between the display of the simple information surrounded by the callout and the display of the detailed information surrounded by the callout, so that the road traffic information having the necessary content can be obtained. Further, even if there are a plurality of detailed information, it is possible to view each information and its generation point in order from the most important information based on the priority.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device,
In particular, it relates to an image display device for displaying road traffic information.

[0002]

2. Description of the Related Art A map screen display device in a car navigation system, which is one of image display devices, includes azimuth information from a direction sensor which senses a traveling direction of a vehicle and a distance from a distance sensor which senses a traveling distance of the vehicle. Information and C
Map data (road data) stored in the D-ROM device
The vehicle's current position is detected by map matching or GPS (Global Positioning System).
m) or both. And on the map,
The current position of the detected vehicle is displayed.

Data of various road traffic event information (road traffic information data) is received from a traffic control center on the ground that collects road traffic information, for example, by a radio wave (quasi-microwave; reception via a beacon installed beside a road). Range 60-
70 m) or light (near infrared; reception range 3.5 m or less)
Sent by. The road traffic information data is transmitted by FM multiplexing or a telephone line in addition to the beacon.
Each vehicle has its own road traffic information data (hereinafter,
(Abbreviated data) is received by the road traffic information receiver.

Examples of road traffic events include restrictions such as road traffic restrictions and speed restrictions due to construction and accidents, and traffic congestion.

FIG. 11 shows a specific example of the configuration of the regulation information in the transmitted road traffic information. In FIG. 11, the regulation information is composed of the content of regulation (lamp closure, traffic closure, etc.), cause (construction, rain, accident, etc.), place (position, section, etc.), and time.

The method of displaying the received road traffic information on the map screen display device includes a simple schematic drawing (mark), a character surrounded by a square box, and a color or pattern display. .

FIG. 1 shows a concrete example of display by a simple schematic diagram of a display method. In FIG. 1, a schematic diagram shows lane regulation (contents of regulation information).

The display method further includes displaying by simple information represented by a short word (generally about 2 to 3 characters) surrounded by a square box, and a phrase of about two lines surrounded by a "square box. There is a display with more detailed information than the display method'shown in.

Specific examples of the detailed information include the contents of construction, the date and time of construction, and regulations associated with construction.

FIG. 12 shows a specific example of the display by the simple information surrounded by the square box of the display method ', among the characters by the display method.

FIG. 12 shows that the road traffic information (the cause of the regulation information) at the corresponding point is "construction".

FIG. 13 is a specific example of the display of detailed information surrounded by a square box of "display method" among the display of characters by the display method.

In FIG. 13, the road traffic information (regulation information) at the corresponding point is "December 24, 20:00.
It is said that it is lane regulation by telephone construction until 0 ”.

The display method is to display the traffic jam / regulation information and the like on the corresponding road section on the map screen in a conspicuous color or pattern.

When the road traffic information at a certain point or area on the map is displayed, it is displayed at the occurrence point or the occurrence area of the road traffic event according to the schematic diagram of the above display method and the characters of the display method. There has been a display method in which the display and the display are combined as needed.

FIG. 14 is a concrete example of a map screen in a state where road traffic information is not displayed. In FIG. 14, the current position of the vehicle is shown on the road.

FIG. 15 shows a specific example in which the display by the schematic view of the display method and the display by the simple information surrounded by the square box of the display method 'are combined and displayed on the map screen.

In FIG. 15, the lane regulation represented by the schematic view displayed slightly above the center of the map screen is understood to be due to construction from the display of the simple information below.

FIG. 16 shows a specific example in which the display by the schematic view of the display method and the display by the detailed information surrounded by the square column of the display method ″ are combined and displayed on the map screen.

In FIG. 16, the lane regulation represented by the schematic view displayed slightly above the center of the map screen shows the detailed information displayed on the message-only display section at the bottom of the map screen from 20th December 24th. It is up to 0:00, and it can be seen that the cause is telephone construction.

However, as shown in FIG. 14, on the map screen, the simplified information surrounded by the square box of the display method'is displayed near the schematic diagram of the display method, but the display method "
The detailed information surrounded by square boxes is displayed using a message dedicated display unit at the bottom of the map screen, another menu screen, or the like, as shown in FIG. Then, the determination of the correspondence with the schematic diagram displayed on the map screen is performed by the key operation of the remote controller. If the amount of information is large,
The next information in the lower layer, which was overwritten, was erased one after another by operating the keys on the remote controller so that the user could see the next information.

When the vehicle is traveling and the map screen is scrolling, the information can be displayed at a glance by the information display of only the schematic diagram of the display method as shown in FIG. 1 or the schematic diagram of the display method as shown in FIG. The display used was a combination of the display with simple information enclosed in a square box of'display method '.

When the vehicle is stopped or when the speed is extremely slow (for example, 5 to 10 km / h or less), a key (* key or the like) of the remote controller is operated to display a display method as shown in FIG. From the combined display of the simple information displayed in the square box of'Display method 'in Fig. 1,
The display according to the schematic diagram of the display method as described in No. 6 and the display according to the detailed information surrounded by the square column of the display method "can be switched to the combined display (to enter the detailed information display mode).

When the vehicle starts and the map screen scrolls or the scale of the map is changed, the detailed information is temporarily stopped, and if the vehicle stops or the speed slows down, the key operation of the remote controller is performed again. The detailed information can be displayed.

[0025]

However, when a plurality of road traffic events occur in the area on the map screen, a plurality of schematic diagrams displayed on the map screen corresponding to each road traffic event are also provided. Therefore, there is a problem that it is difficult to instantly determine which schematic diagram corresponds to the detailed information displayed on the message dedicated display section at the bottom of the map screen or another menu screen. .

Since it is necessary to operate the keys of the remote controller to determine the correspondence, it is very troublesome and there is a problem that it hinders driving.

Further, for example, when displaying detailed information, if the message dedicated display section at the bottom of the map screen or another menu screen is used, only the information displayed in the uppermost layer can be viewed, so that the detailed information is displayed in plural numbers. There is a problem that it is not possible to determine whether or not there is further information even if there is or the amount of information is large.

The present invention has been made in order to solve the above problems, and promptly recognizes information obtained about a road traffic event and the point of occurrence thereof without bothering driving work, and The purpose is to understand the changes.

[0029]

An image display device according to claim 1 of the present invention receives a signal representing road traffic information and displays the road traffic information obtained by the signal.
The road traffic information includes first road traffic information and second road traffic information, and the first road traffic information includes graphic information that graphically represents road traffic information at a certain point, and the second road traffic information.
The road traffic information includes character information regarding the road traffic information at the certain point. The image display device includes a first display unit that displays the first road traffic information on the certain point, and a second display unit.
A second display means for displaying the road traffic information in contact with the displayed first road traffic information is provided.

The second road traffic information further includes third road traffic information and fourth road traffic information that is more detailed than the third road traffic information.

The image display device according to claim 2 of the present invention is the second display means of the image display device according to claim 1,
A switching means for switching the display of the third road traffic information and the fourth road traffic information is provided.

An image display device according to a third aspect of the present invention is the image display device according to the first or second aspect, wherein setting means for setting the display priority for a plurality of second road traffic information and setting means therefor. Third display means for displaying each of the second road traffic information in contact with the first road traffic information based on the priority set by the above.

[0033]

According to the image display device of claim 1, the first road traffic information, which is the graphic information representing the road traffic information of a certain point in a graphic form, is displayed on the certain point and relates to the road traffic information of the certain point. Since the second road traffic information, which is the information, is displayed in contact with the displayed first road traffic information, the driver (user) can find the location where the second road traffic information is the first road traffic information. It is possible to instantly determine whether or not it corresponds to and to recognize the content.

In the image display device according to claim 2, the second road traffic information includes the third road traffic information and the fourth road traffic information which is more detailed than the third road traffic information. Since it is possible to switch between the display and the display of the fourth traffic information, it is possible to obtain the road traffic information having the necessary contents.

In the image display device according to claim 3, when there is a plurality of second road traffic information, a display priority is set for each second road traffic information, and based on the priority,
Since each of the second road traffic information is displayed in contact with the first road traffic information, even if there are a plurality of second road traffic information,
Each piece of information and its place of occurrence can be viewed in order of importance.

[0036]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A map screen display device for a car navigation system, which is an embodiment of an image display device according to the present invention, will be described below with reference to the drawings.

The information display according to the schematic diagram corresponds to the first road traffic information. The information display in text corresponds to the second road traffic information.

Further, a part of the column surrounding the second road traffic information has an arrow shape and is in contact with the first road traffic information. (Hereinafter, such a state is referred to as "blowout".) This corresponds to the second display means of claim 1.

FIG. 2 is a display with simple information represented by short words (generally about 2 to 3 characters) surrounded by callouts (this is the third road traffic included in the second road traffic information). (Corresponding to information).

In FIG. 2, the point where the blowout is coming out is
It is the point of occurrence of road traffic events. In other words, in this example, at the point where the callout appears on the map screen,
You can get simple information that "construction" is in progress.

FIG. 3 shows a display with detailed information expressed in terms of about two lines surrounded by callouts (this corresponds to the fourth road traffic information included in the second road traffic information). This is a specific example.

In FIG. 3, similar to FIG. 2, it is possible to obtain detailed information that "the lane is regulated by telephone construction until 20:00 on December 24th" at the point where the callout occurs.

FIG. 4 shows the schematic diagram of FIG.
It is a specific example in the case of combining the display by the simple information surrounded by the balloon.

FIG. 4 is a schematic diagram showing that the content of the road traffic event at that point is lane regulation,
The fact that the cause is construction is indicated by the blowing out from the schematic diagram. That is, the correspondence between the schematic diagram and the simple information is clarified.

FIG. 5 shows the schematic diagram of FIG.
It is a specific example in the case of combining the display by the detailed information surrounded by the balloon.

In FIG. 5, as in the case of FIG. 4, the contents of the road traffic event at that point are schematically shown to be lane restrictions, and the details of the cause are described in “December 24, 20:
The lane regulation up to 00 by telephone work ”is indicated by the callout from the schematic diagram. That is, the correspondence between the schematic diagram and the detailed information is clarified.

FIG. 6 shows a combination of the display of the above schematic diagram and the display of the simple information surrounded by the balloons.
It is a specific example displayed on the map screen.

In FIG. 6, the location of the road traffic event can be known from the position of the schematic diagram, and the simple information corresponding to the schematic diagram can be instantly read.

FIG. 7 shows a combination of the display according to the above schematic diagram and the display according to detailed information surrounded by a balloon.
It is a specific example displayed on the map screen.

In FIG. 7, the location of the road traffic event can be known from the position of the schematic diagram, and the detailed information corresponding to the schematic diagram can be instantly read.

Here, it is possible to switch between the display of the simple information surrounded by the balloon of FIG. 4 and the display of the detailed information surrounded by the balloon of FIG. 5 by a simple key operation of the remote controller.

When the vehicle is running and the map screen is scrolling, the contents can be displayed at a glance by using only the schematic diagram as shown in FIG. 1, or by the schematic diagram as shown in FIG. 4 and the balloon from the schematic diagram. Use the display that combines simple information enclosed in.

When the vehicle is stopped or the speed is extremely slow (for example, 5 to 10 km / h or less), the simple information surrounded by the balloon as shown in FIG. 4 is operated by operating the key (* key or the like) of the remote controller. The display by is switched to the display by the detailed information surrounded by the balloon as shown in FIG. 5 (to enter the detailed information display mode).

When the vehicle starts and the map screen scrolls or the scale of the map is changed, the detailed information is automatically stopped, the display is switched to the simple information, and the vehicle is stopped again. Or slow down,
The detailed information can be displayed by operating the keys on the remote controller again.

When there are a plurality of road traffic event information near or at the same point in the area on the map screen, a plurality of schematic diagrams displayed on the map screen and a plurality of balloons corresponding to those schematic diagrams are enclosed. The simplified information and detailed information are displayed in an overlapping manner. At this time, it can be seen at a glance that the information other than the uppermost layer of the overlap exists due to the displacement of the positions of the blowouts.

Further, in the drawing order of the information, the more important the information is, the more the information is drawn in the upper layer. The display priority determined by its importance is preset and stored in the CD-ROM device. Alternatively, the user may make the setting by himself / herself by operating a key on the remote controller. Then, by operating the keys on the remote controller, the upper layers are erased in order,
Allows you to see the next layer.

When there is a large amount of information for one road traffic event, a plurality of balloons may also overlap, but again, key operation of the remote controller erases them in order from the upper layer, and Allows you to see the layers.

FIG. 8 is a concrete example of setting the priority for each event in the display of road traffic information. In FIG. 8, those in the leftmost column such as road closures, lamp closures, and inflow restrictions have a high priority, and those in the rightmost column such as chain required, slip caution, crosswind caution, and fog caution have priority. Low. Lane regulation, speed regulation (20, 30, 40 km / h regulation), etc.
Those in the middle column have priority in between.
Furthermore, the higher the one in each column, the higher the priority. The drawing order is drawn from the lowest priority first, and the higher priority first. In other words, the one with the higher priority comes to the upper layer in the overlap.

FIG. 9 is a block diagram showing the configuration of a car navigation system including a map screen display device which is an embodiment of the image display device of the present invention.

In FIG. 9, the car navigation system comprises a CD-ROM device 1 and a road traffic information receiver 3.
And a GPS receiver 5, a navigation device 7, and a display 9. The CD-ROM device 1 stores digitized map data (road data). The road traffic information receiver 3 receives road traffic information through light or radio waves transmitted from a beacon, FM multiplex, telephone line, or the like. The GPS receiver 5 receives information for knowing the current position of the vehicle from the satellite.

The navigation device 7 is connected to the CD-ROM device 1, the road traffic information receiver 3 and the GPS receiver 5, and the digital map data stored in the CD-ROM device 1 and the GPS receiver 5 are connected. The current position of the vehicle is detected by the map matching with the information from the satellite received in. Then, the road traffic information received by the road traffic information receiver 3 is converted into a display based on a schematic diagram, simple information or detailed information. The display 9 is connected to the navigation device 7 and displays the current position of the vehicle and the road traffic information obtained by the navigation device 7 on the map screen.

The wheel speed pulse serves as a guide for indexing the current position of the vehicle, adjusting the scroll speed, and switching between detailed information of road traffic information and simple information.

FIG. 10 is a flowchart showing the operation of displaying a road traffic event on the map screen in the car navigation system including the map screen display device of the embodiment of the present invention shown in FIG.

In FIG. 10, in step S1 (hereinafter abbreviated as step), map matching or GP is performed.
A map of the current position of the vehicle and its surroundings is drawn by using S or both. This is the CD in Figure 9
-ROM device 1, GPS receiver 5, navigation device 7, and display 9.

In S3, it is checked whether or not there is a road traffic event in the drawn map screen area. From S3 up to S9, FIG.
This is performed by the road traffic information receiver 3 and the navigation device 7. If there is a road traffic event in S3, it is set in S5 whether or not to display the contents of each road traffic event by the schematic diagram. If there is no road traffic event in S3, nothing is drawn.

When the contents are displayed by the schematic diagram in S5,
In S7, it is set whether or not to display the simple information surrounded by the balloon. If the schematic diagram is not displayed in S5, nothing is drawn.

In the case of displaying the simple information surrounded by the balloons in S7, it is determined in S9 whether or not the display is switched to the detailed information surrounded by the balloons. If the display by the simple information surrounded by the balloon S7 is not performed, the process jumps to S11, and in S11, only the schematic diagram representing the road traffic event is displayed on the map screen.

When the display is switched to the detailed information surrounded by the callouts in S9, the schematic diagram showing the road traffic information and the detailed information surrounded by the callouts displayed from the schematic diagram are displayed in S11.

If the display is not switched to the detailed information surrounded by the callouts in S9, a schematic diagram showing the road traffic information and the simple information surrounded by the callouts blown from the schematic view are displayed on the map screen in S11. To be done.

In the flow chart of FIG. 10, it is also possible to set such that the display by the simple information surrounded by the callout and the display by the detailed information surrounded by the callout can be performed without the display by the schematic diagram. That time,
After jumping from S3 to S7, the same operation as in the case of FIG. 10 may be repeated.

Further, it is also possible to set such that the detailed information surrounded by the balloons can be displayed without the display by the simple information surrounded by the balloons. That time,
To display a schematic diagram, jump from S5 to S9,
When the schematic diagram is not displayed, the process jumps from S3 to S9, and the same operation as in the case of FIG. 10 is repeated.

[0072]

As described above, according to the present invention, claim 1
In the image display device, the first road traffic information, which is the graphic information representing the road traffic information of a certain point by a graphic, is displayed, and the second road traffic information that is the character information regarding the road traffic information of the certain point is Since it is displayed in contact with the first road traffic information, the driver (user) instantly determines at which point the second road traffic information corresponds to the first road traffic information. , Can recognize its contents.

In the image display device according to claim 2, the second road traffic information includes the third road traffic information and the fourth road traffic information which is more detailed than the third road traffic information. Since it is possible to switch between the display and the display of the fourth road traffic information, it is possible to obtain the traffic information having the necessary internal capacity.

In the image display device according to claim 3, when there are a plurality of second road traffic information, a display priority is set for each second road traffic information, and based on the priority,
Since each of the second road traffic information is displayed in contact with the first road traffic information, even if there are a plurality of second road traffic information,
Each piece of information and its place of occurrence can be viewed in order of importance.

As a result, it is possible to promptly recognize the information obtained regarding the road traffic event and the point of occurrence thereof without complicating the driving work, and grasp the change in the traffic situation.

[Brief description of drawings]

FIG. 1 is a diagram showing a specific example of a display according to a schematic diagram of an embodiment of the present invention.

FIG. 2 is a diagram showing a specific example of display by simple information surrounded by balloons according to an embodiment of the present invention.

FIG. 3 is a diagram showing a specific example of display by detailed information surrounded by callouts according to the embodiment of this invention.

FIG. 4 is a diagram showing a specific example in the case where the display according to the schematic view of the embodiment of the present invention and the display according to the simple information surrounded by balloons are combined.

FIG. 5 is a diagram showing a specific example in which the display according to the schematic view of the embodiment of the present invention and the display according to the detailed information surrounded by the balloons are combined.

FIG. 6 is a diagram showing a specific example in which a combination of the display of the schematic diagram of the embodiment of the present invention and the display of the simple information surrounded by the balloon is displayed on the map screen.

FIG. 7 is a diagram showing a specific example in which a combination of the display according to the schematic view of the embodiment of the present invention and the display according to the detailed information surrounded by the balloon is displayed on the map screen.

FIG. 8 is a diagram showing a specific example of setting event-specific priorities for displaying road traffic information according to the embodiment of this invention.

FIG. 9 is a block diagram showing a configuration of a car navigation system including a map screen display device according to an embodiment of the present invention.

FIG. 10 is a flowchart showing the operation of the map screen display device in the embodiment of the present invention.

FIG. 11 is a diagram showing a specific example of a configuration of regulation information included in road traffic information.

FIG. 12 is a diagram showing a specific example of display by simple information surrounded by a square box in the related art.

FIG. 13 is a diagram showing a specific example of display by detailed information surrounded by a square box in the related art.

FIG. 14 is a diagram showing a specific example of a map screen in a state where road traffic information is not displayed.

FIG. 15 is a diagram showing a specific example in which a combination of a conventional schematic information display and a simple information display surrounded by a square box is displayed on a map screen.

FIG. 16 is a diagram showing a specific example in which a combination of a conventional schematic information display and a detailed information display surrounded by a square box is displayed on a map screen.

Claims (3)

[Claims] 1. An image display device for receiving a signal representing road traffic information and displaying the road traffic information obtained by the signal, wherein the road traffic information includes a first road traffic information and a second road traffic information. Road traffic information, the first road traffic information includes graphic information that graphically represents road traffic information at a certain point, and the second road traffic information includes character information about the road traffic information at the certain point. A first display means for displaying the first road traffic information on the certain point, and a second display means for displaying the second road traffic information in contact with the displayed first road traffic information. Image display device including. 2. The second road traffic information further includes a third road traffic information.
It includes road traffic information and fourth road traffic information that is more detailed than the third road traffic information, and the second display means includes switching means for switching the display of the third road traffic information and the fourth road traffic information. The image display device according to claim 1, including the image display device. 3. There are a plurality of the second road traffic information, and for each of the second road traffic information, setting means for setting a display priority, and based on the priority set by the setting means, The image display device according to claim 1 or 2, further comprising a third display unit that displays each of the second road traffic information in contact with the first road traffic information.