JP2002157684A - On-vehicle display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a driver to speedily and exactly recognize an object visually which is an obstacle to a travel of the vehicle. SOLUTION: An information transmission and reception part 11 receives information on the kinds and the number of objects present within a specific range. A vehicle information output part 12 calculates the position of the vehicle 21. In addition to map data, a storage part 13 stores figures corresponding to the kinds and the number of the respective objects, character data for displaying distances to the objects, alarms, etc., and voice data for the objects. A figure display part 31 when displaying figures of the objects on a display part 15 or display 18 displays the figures corresponding to the kinds and the number of the objects. A distance display part 32 displays distances between the objects and a vehicle 21, distance between an information transmission device 22 and the vehicle 21, etc., on the display 18 and display part 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle display device for displaying, for example, road traffic information received from outside a vehicle.

[0002]

2. Description of the Related Art Conventionally, in a vehicle navigation apparatus which provides a driver with guidance information such as road traffic information along a traveling route of a vehicle, for example, as disclosed in JP-A-6-325293, for example, Receives a signal containing road traffic information emitted from a beacon installed on the road toward a relatively narrow area, creates various messages according to the analysis result of the content of this road traffic information, and displays it on the display screen 2. Description of the Related Art A navigation device that performs scroll display and the like is known. Further, as disclosed in, for example, Japanese Patent Application Laid-Open No. 9-115099, the current position and traveling direction of the vehicle are detected, and situation information data on the road on which the vehicle travels is stored in a memory unit in advance or received from the outside of the vehicle. hand,
For example, there is known a navigation device that outputs a warning including a position of occurrence of event information requiring attention with respect to traveling of a vehicle by an image or sound including character information.

[0003]

However, when character information is displayed on a display screen as in the navigation device according to the prior art, the occupant needs to read the character information accurately, and various kinds of events are required. The information or the like cannot be quickly recognized, which may hinder the driver's quick judgment. Furthermore, even when displaying an object requiring attention with respect to the traveling of the vehicle, for example, a figure indicating an oncoming vehicle or a pedestrian at the time of a right turn and allowing the occupant of the vehicle to visually recognize the situation, the occupant can accurately grasp the situation. If such a display is not performed, there is a risk of erroneous recognition. The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an in-vehicle display device that enables an occupant to quickly and accurately recognize an object that has a problem in running a vehicle.

[0004]

In order to solve the above-mentioned problems and to achieve the above object, a vehicle-mounted display device according to the present invention is provided with a display which can be visually recognized by a vehicle occupant. And a storage unit (for example, map data in an embodiment described later) that stores data (for example, map data in an embodiment described later) for displaying a road map on the display. Storage unit 13), vehicle position detecting means (for example, a vehicle information output unit 12 in an embodiment described later) for detecting the position of the vehicle, and information on a road on which the vehicle travels (for example, an embodiment described later). Road construction, road regulation such as width reduction, pedestrians, parked / stopped vehicles, obstacles, falling objects, broken cars, accidents, traffic jams, etc., as well as natural conditions including weather such as rainfall and snowfall Receiving means (e.g., information transmitting / receiving unit 11 in an embodiment described later) for receiving the state of the road due to the state from the outside of the vehicle, and the road information received by the receiving means. Graphic display means (for example, a graphic display unit 31 in an embodiment to be described later) for displaying a graphic of an object (for example, a pedestrian or a vehicle in an embodiment to be described later) which hinders the running of the vehicle on the display; And wherein the graphic display means displays different graphics depending on the number of the objects.

[0005] According to the vehicle-mounted display device having the above-described structure, the receiving means is provided for detecting an object obstructing the running of the vehicle, for example, the presence of an oncoming vehicle or a pedestrian at a right turn, or an approaching vehicle at a start at an intersection. When information of a road notifying the existence of the vehicle is received by, for example, road-to-vehicle communication or vehicle-to-vehicle communication, the graphic display means displays a graphic that can identify the type of the object. This allows the occupant of the vehicle to easily recognize the presence of the target object. Moreover, since the graphic display means displays a graphic that can identify the number of objects, the occupant of the vehicle can make a more detailed situation determination based on the information on the type and number of the objects. For example, when a plurality of oncoming vehicles approach each other continuously when the vehicle makes a right turn, the graphic display means displays a graphic indicating a plurality of continuous vehicles. Then, the occupant of the vehicle can determine that the right turn operation is performed at a timing that takes into account not only the oncoming vehicle positioned at the head but also the following oncoming vehicle. That is, the occupant of the vehicle can select an appropriate response based on the detailed situation determination and execute it at an appropriate timing.

Further, in the vehicle-mounted display device according to the present invention, the transmission means (for example, an information transmission device 22 in an embodiment described later) installed outside the vehicle is directed toward the vehicle. The transmitted road information is characterized by including the number of the objects existing within a predetermined range.

According to the vehicle-mounted display device having the above-described structure, the transmitting means provided outside the vehicle exists in a predetermined range which differs depending on the type of road such as a general road, an expressway, and a priority road. Transmits information such as the type and number of objects. The in-vehicle display device that has received these pieces of information displays, for example, the distance to an object existing within a predetermined range and also displays a graphic corresponding to the type and number of the object. That is,
Even when the type and number of the objects existing within the predetermined range change, an appropriate figure is displayed according to these changes. Therefore, the occupant of the vehicle can accurately and easily visually recognize the type and number of the objects existing within the predetermined range, and can accurately grasp the change in the situation.
Appropriate responses can be made at appropriate timing.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a vehicle-mounted display device according to an embodiment of the present invention. FIG. 1 shows an in-vehicle display device 1 according to an embodiment of the present invention.
FIG. 2 is a perspective view of the inside of the vehicle showing an example of an installation position of the display unit 16 shown in FIG. 1, and FIG.
5 is a diagram showing a display screen of a display unit 16 shown in FIG. The on-vehicle display device 10 according to the present embodiment
, Vehicle information output unit 12, storage unit 13, processing unit 14
, Display ECU 15, display unit 16, navigation ECU 17, display 18, voice ECU 19
And a speaker 20.

The information transmission / reception unit 11 transmits, for example, a VI transmitted from an information transmission device 22 provided outside the vehicle 21.
CS (Vehicle Information & Communication System)
In addition to receiving the road traffic information such as the information, the received road traffic information and the information regarding the vehicle 21 and the like are transmitted to a suitable receiving device (not shown) outside the vehicle 21 including the in-vehicle display device 10 mounted on another vehicle. (Omitted). Here, the information transmitting device 22 is, for example, a broadcasting device or a relay device such as an FM multiplex broadcasting, a road-to-vehicle communication device including a beacon device and the like disposed on the roadside and transmitting an optical signal and a radio signal, and other vehicles. And a vehicle-to-vehicle communication device including a vehicle-mounted display device 10 mounted on a vehicle.

The information transmission device 22 transmits road traffic information distributed from, for example, an upper station (not shown) to the vehicle 21. This road traffic information is, for example, road regulation such as road construction and width reduction, information notifying occurrence of each event such as obstacles, falling objects, broken cars, accidents and traffic jams,
For example, information relating to an event indicating a road condition (for example, slipperiness) due to a natural condition including weather such as rainfall or snowfall, that is, information that has some influence on the traveling of the vehicle 21 and , And the position information (for example, the end of a congestion line) indicating the occurrence position of each event or the occurrence position of each event and the occurrence position of each event It is configured from information on the distance to the position, information on the installation position of the information transmitting device 22, and the like.

Further, the information transmission device 22 is provided on the road and within a predetermined range near the road, for example, on a general road, for the vehicle 2.
About 1 to 100 m, and on the highway, vehicle 2
Information about the type and number of objects existing within a range of about 1 to 500 to 600 m is transmitted. Here, the term “object” refers to an object that hinders traveling of the vehicle 21 such as an oncoming vehicle and a pedestrian when the vehicle 21 turns right or an approaching vehicle when the vehicle 21 stops at an intersection, for example. Have been. The information transmission device 22 is capable of transmitting a signal wave for detecting a vehicle position, for example, as disclosed in Japanese Patent Application Laid-Open No. 5-151497.

The vehicle information output unit 12 is, for example, a vehicle 21
It outputs information such as the current position, traveling direction and speed of the
For example, a GPS (Global Position System) signal for measuring the position of a vehicle using an artificial satellite or a D (Diff) for correcting an error of the GPS signal to improve positioning accuracy.
erential) a positioning signal processing unit (not shown) for processing a positioning signal such as a GPS signal, and a position detection signal for processing a signal wave for vehicle position detection transmitted from the information transmitting device 22 such as VICS information, for example. It is configured to include a wave processing unit (not shown) and an autonomous navigation unit (not shown) including, for example, an appropriate gyro sensor and an accelerometer.

Here, the positioning signal processing section calculates the current position of the vehicle 21 based on, for example, a GPS signal received from an artificial satellite or a DGPS signal received from an appropriate base station. The position detection signal processing unit calculates the current position of the vehicle 21 based on road traffic information such as VICS information received by an optical signal and a radio signal from a beacon device arranged on an FM multiplex broadcast or on a road, for example. The Autonomous Navigation Department
For example, the vehicle 21 in a horizontal plane is detected by a gyro sensor.
Of the vehicle and the angle change amount of the inclination angle with respect to the vertical direction, and the current position of the vehicle is calculated by detecting the acceleration of the vehicle 21 using, for example, an accelerometer.

The storage unit 13 includes a magnetic disk device such as a hard disk device, and a CD-ROM or C
It comprises a computer-readable storage medium such as an optical disk device such as a DR, an MO, and a DVD. The storage unit 13 includes, in addition to the map data for displaying the map on the display 18, for example, road works, road regulation such as width reduction, pedestrians, parked / stopped vehicles, obstacles, falling objects, and breakdowns. Each event such as a car, an accident, traffic congestion, and the like, and data of a simplified graphic indicating a state of a road due to a natural state including weather such as rainfall and snowfall, and an oncoming vehicle and a walk when the vehicle 21 turns right, for example. From the current position of the vehicle 21 and the current position of the vehicle 21, such as a person or an approaching vehicle when the vehicle 21 stopped at the intersection starts, such as an approaching vehicle, etc. Character data for displaying an event occurrence position and a distance to an existing position of each object, information on each event and the object, a warning, and the like, and voice data for each event and the object are stored.

The processing unit 14 obtains, for example, the map data obtained from the storage unit 13 from the positioning signal processing unit, the road traffic information processing unit, and / or the autonomous navigation unit in the vehicle information output unit 12. While performing map matching etc. based on the information of the current position of the vehicle 21,
As will be described later, display of a graphic corresponding to the type and number of each object, character data indicating a distance, a warning, or the like regarding the location of each object is controlled. Further, the processing unit 14 controls output of audio data regarding each object. For this reason, the processing unit 14 includes a signal of the road traffic information output from the information transmitting / receiving unit 11, a signal of the current position, the traveling direction, and the speed of the vehicle 21 output from the vehicle information output unit 12, and a storage unit. 13, map data, graphic data, character data, and voice data to be retrieved.

The processing unit 14 further includes a graphic display unit 31
And a distance display section 32. The graphic display unit 31 stores the location of each object obtained from the road traffic information output from the reception unit 11, the current position of the vehicle 21 output from the vehicle information output unit 12, and the storage unit 13.
The graphic is displayed on the display unit 16 and the display 18 based on the graphic corresponding to the type and the number of each object retrieved from. The distance display unit 32 displays the distance between the location of each object and the position of the vehicle 21 and the distance between the position of the information transmission device 22 and the position of the vehicle 21 on the display 18 and the display unit 16. I do.

The display ECU 15 displays a graphic for each object displayed on the display unit 16, a distance from the current position of the vehicle 21 to the location of each object, an alarm based on information on each object, and the like. Control. Here, the display unit 1
3, a liquid crystal display device provided below the speedometer 42 in the instrument panel 41 of the vehicle 21 as shown in FIG. Are arranged in the range of ° (for example, the position of θ = 25 °). Note that this look-down angle θ is 30
When the angle is larger than °, the figure of each object displayed on the display unit 16, the distance from the current position of the vehicle 21 to the position where each object exists, information about each object, an alarm, and the like are transmitted to the vehicle 21. There is a risk that the occupant will not be able to reliably see it.

The navigation ECU 17 performs, for example, route guidance to a destination on a map displayed on the display 18 and, when information is received by the information transmitting and receiving unit 11 as described later, for example, A pop-up display screen is generated at 18 to display a graphic corresponding to the type and number of each object, a distance from the current position of the vehicle 21 to a position where each object exists, an alarm for each object, and the like. The display 18 displays a map for navigation used in, for example, route guidance based on map data obtained by searching from the storage unit 13 and, for example, displays a target related object on a pop-up display screen as described later. I do. Display 1
For example, as shown in FIG. 2, 8 is provided at the upper center of the dashboard, and is arranged in a range of 20 ° to 30 ° in the lower left look-down angle θ of the occupant of the vehicle 21. The voice ECU 19 outputs voice data (for example, notification of the type and number of the objects, voice data such as a warning for each object, etc.) to the speaker 20 in addition to the voice guidance in, for example, route guidance to the destination. Output from

The on-vehicle display device 10 according to the present embodiment has the above-described configuration.
Will be described with reference to the accompanying drawings. FIG.
Is the operation of the in-vehicle display device 10, in particular, the display 18.
5 is a view showing a display screen of a display 18 that displays information of an approaching vehicle when the vehicle 21 starts moving, and FIGS. 6 to 13 show opposite views when the vehicle 21 turns right. It is a figure which shows the display screen of the display 18 which displays the information of a vehicle, FIGS. 14-16 is the display 1 which displays the information of the pedestrian crossing ahead.
8 is a diagram showing a display screen of No. 8.

First, in step S01 shown in FIG. 4, for example, when the vehicle 21 enters the communication area of the information transmitting device 22, for example, road works such as road construction and width reduction, pedestrians, parked / stopped vehicles and obstacles In addition to information such as things, falling objects, broken cars, accidents, traffic jams, etc., and information on road conditions caused by natural conditions including, for example, rainfall and snowfall, there is a hindrance to the running of the vehicle 21. Receive information about an object. Next, in step S02, for example, from the state where a navigation map used for route guidance and the like is displayed on the display screen of the display 18,
For example, as shown in FIG. 5, FIG. 6, or FIG. 14, a pop-up display screen P is generated and the display on the display 18 is switched.

Next, in step S03, as shown in FIG. 6, for example, on the pop-up display screen P generated on the display 18, an enlarged map of the position related to the received information is displayed. Route information Q (for example, an arrow Q indicating a right turn at a forward intersection) and the like are displayed, and the content R of information on the target object (for example,
“Caution! Approaching vehicle” shown in FIG. 5, “Caution! Right turn oncoming vehicle” shown in FIG. 6, or “Caution! Forward pedestrian” shown in FIG. 14) are displayed by, for example, character data.

Next, in step S04, the vehicle 2
1 distance information S from the current position to the location of the object
(For example, "100 m ahead" or "30 m ahead" shown in FIG. 5, "60 m ahead" shown in FIG. 6, or "10 m ahead" shown in FIG.
0 m ahead ”). Next, in step S05, as will be described later, a graphic corresponding to the type and number of the target object (for example, the approaching vehicle in FIG. 5, the oncoming vehicle in FIG. 6, or the pedestrian crossing in FIG. 14) is displayed. Then, in step S06, the display of the pop-up display screen P is terminated when the target object disappears from the predetermined range, for example, a navigation map indicating the current position of the vehicle 21 is displayed, and a series of processing is performed. finish

Here, if information received from outside the vehicle 21 changes, for example, the type and number of objects existing within a predetermined range with respect to the vehicle 21, a figure corresponding to the change is displayed. Hereinafter, as an example of a display on the pop-up display screen P, a display when the vehicle 21 starts from a state where the vehicle 21 is stopped at an intersection will be described with reference to the accompanying drawings. For example, as shown in FIG. 5, when the vehicle 21 starts from a state where it is stopped at an intersection, two four-wheeled vehicles are continuously approaching from one of the directions intersecting the starting direction of the vehicle 21. , And from the other, 4
When a two-wheeled vehicle, a two-wheeled vehicle, and a four-wheeled vehicle are continuously approaching, a figure (for example, FIG.
(A four-wheeled vehicle A, a four-wheeled vehicle B, a four-wheeled vehicle C, a two-wheeled vehicle D, and a four-wheeled vehicle E). In this case,
Each figure is displayed only until each approaching vehicle passes through the intersection.

Further, for example, as shown in FIG.
When turning right at an intersection in front of a vehicle, if two-wheeled vehicles, four-wheeled vehicles, and two-wheeled vehicles are successively approaching each other as oncoming vehicles within a predetermined range, the type and number of approaching vehicles (For example, the graphic W1 shown in FIG. 6) corresponding to the image data is displayed. Here, when the type and the number of oncoming vehicles within the predetermined range change, for example, when one two-wheeled vehicle or one four-wheeled vehicle approaches as the oncoming vehicle as shown in FIGS. For example, when one two-wheeled vehicle and four-wheeled vehicle approach each other simultaneously as shown in FIG. 9, for example, when two four-wheeled vehicles approach each other continuously as shown in FIG. For example, when one two-wheeled vehicle and four-wheeled vehicle approach each other continuously as shown in FIG. 11, for example, as shown in FIG. 13, for example, as shown in FIG. 13, as an oncoming vehicle, a two-wheeled vehicle, a four-wheeled vehicle, a two-wheeled vehicle successively approach each other (for example, FIGS. 13 is displayed.

Further, for example, as shown in FIG.
When a plurality of (for example, three) crossing pedestrians are present as objects within a predetermined range in front when 1 heads for an intersection in front, it is determined according to the type and number of the objects. A figure (for example, figure W2 shown in FIG. 14) is displayed. Here, when the type and number of the objects within the predetermined range are changed, for example, when one pedestrian is present as the object as shown in FIG. 15, for example, as shown in FIG. When there are three or more pedestrians as shown in FIG. 17, for example, there are three or more pedestrians as objects (for example, a figure W2 shown in FIGS. 15 to 17). indicate.

As described above, according to the on-vehicle display device 10 according to the present embodiment, the type and number of the objects are determined based on the information on the objects existing within the predetermined range received from the outside of the vehicle 21. By displaying the corresponding figure, the vehicle 21 is displayed.
Can select an appropriate response based on the detailed situation determination. In addition, even if the type and number of the objects existing within the predetermined range change, an appropriate graphic is displayed according to these changes.
Of the occupant can accurately and easily visually recognize the type and number of the objects existing within the predetermined range, and can accurately grasp the change in the situation, so that an appropriate response is performed at an appropriate timing. be able to.

In this embodiment, the pop-up display screen P of the display 18 displays graphics corresponding to the type and number of objects, but the present invention is not limited to this. For example, the pop-up display screen of the display 18 The information may be displayed on both the P and the liquid crystal display screen of the display unit 16 or only on the liquid crystal display screen of the display unit 16.

[0028]

As described above, according to the in-vehicle display device of the first aspect of the present invention, the figure which can identify the type and the number of the object is displayed, so that the occupant of the vehicle is displayed. Makes it easy to make accurate and detailed situation judgments.
Further, according to the in-vehicle display device of the present invention described in claim 2, the occupant of the vehicle can accurately and easily visually recognize the type and number of the objects existing within the predetermined range, and Since the change can be accurately grasped, an appropriate response can be made at an appropriate timing.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an in-vehicle display device according to an embodiment of the present invention.

FIG. 2 is a perspective view of the inside of the vehicle showing an installation position of a display unit shown in FIG.

FIG. 3 is a diagram showing a display screen of a display unit shown in FIG.

FIG. 4 is a flowchart showing an operation of the in-vehicle display device shown in FIG. 1, in particular, a display method on a display.

FIG. 5 is a diagram showing a display screen of a display that displays information on an approaching vehicle when the vehicle starts moving.

FIG. 6 is a diagram showing a display screen of a display for displaying information of an oncoming vehicle when the vehicle makes a right turn.

FIG. 7 is a diagram showing a figure of an oncoming vehicle displayed on the display screen of the display when the vehicle makes a right turn.

FIG. 8 is a diagram showing a figure of an oncoming vehicle displayed on the display screen of the display when the vehicle makes a right turn.

FIG. 9 is a diagram showing a figure of an oncoming vehicle displayed on the display screen of the display when the vehicle turns right.

FIG. 10 is a diagram showing a figure of an oncoming vehicle displayed on a display screen of a display when the vehicle makes a right turn.

FIG. 11 is a diagram showing a figure of the oncoming vehicle displayed on the display screen of the display when the vehicle turns right.

FIG. 12 is a diagram showing a figure of an oncoming vehicle displayed on a display screen of a display when the vehicle makes a right turn.

FIG. 13 is a diagram showing a figure of an oncoming vehicle displayed on the display screen of the display when the vehicle turns right.

FIG. 14 is a diagram showing a display screen of a display for displaying information on a pedestrian crossing ahead.

FIG. 15 is a diagram showing a figure of a pedestrian crossing ahead.

FIG. 16 is a diagram showing a figure of a pedestrian crossing ahead.

FIG. 17 is a diagram showing a figure of a pedestrian crossing ahead.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 In-vehicle display apparatus 11 Information transmission / reception part (reception means) 12 Vehicle information output part (vehicle position detection means) 13 Storage part (storage means) 16 Display part (display) 18 Display 22 Information transmission device (transmission means) 31 Graphic display Part (graphic display means)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C032 HB02 HB23 HB24 HC08 HC31 HD03 HD04 5H180 AA01 BB02 BB04 BB13 CC02 CC12 EE13 EE18 FF04 FF05 FF07 FF12 FF13 FF22 FF25 FF27 FF33 LL01 LL04 LL07 LL08

Claims (2)

[Claims] 1. A display that is visible to an occupant of a vehicle; a storage unit that stores data for displaying a road map on the display; a vehicle position detection unit that detects a position of the vehicle; Receiving means for receiving information on a road to be run from outside of the vehicle, and a graphic display for displaying, on the display, a graphic of an object obstructing the traveling of the vehicle among the information on the road received by the receiving means. Means for displaying the figure, wherein the figure display means displays the figure different according to the number of the objects. 2. The information on the road transmitted from the transmitting means provided outside the vehicle to the vehicle includes the number of the objects existing within a predetermined range. An in-vehicle display device according to claim 1.