JP2000149190A - Auxiliary display device for in-vehicle route guidance device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To surely confirm road guidance information without moving a line of sight, and to further improve safety during driving. SOLUTION: A left turn indicator 17a is arranged in front of a driver's seat, emits light when a direction instruction based on road guidance information output from a car navigation body 11 is a left turn instruction, and a right turn indicator 17b is used for driving. It is located in front of the seat,
Lights up when the direction instruction based on the road guidance information output from the car navigation body 11 is a right turn instruction.
The light emitting element control unit 23 emits light in accordance with the distance from the traveling position of the vehicle to the left turn point or the right turn point.
The emission color of the display 7a or the right turn display 17b is changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary display device of an on-vehicle route guidance device capable of confirming road guidance information without impairing driving safety and moving a line of sight.

[0002]

2. Description of the Related Art Conventionally, a car navigation device has been known. This car navigation device displays road guidance information along a road to a destination on a map displayed on a monitor to assist a driver's driving operation.

When displaying road guidance information on a monitor using such a car navigation device, the monitor cannot be installed at a position where the driver can easily see it because the monitor is large. Installed in the position where the audio device is installed.

In this case, the driver has to change the position of his / her head and check the road guidance information displayed on the monitor. For this reason, there was a problem that safety in driving was not ensured due to carelessness ahead.

[0005] Further, in the case of notifying the road guidance information by voice, it is easy to overlook or miss the voice-guided road guidance information because the user listens to music during conversation with the passenger or while traveling. There was a problem.

Therefore, as a car navigation system which solves these problems, for example, Japanese Patent Application Laid-Open No. H8-18445.
There is an auxiliary display device of the in-vehicle route guidance device described in Japanese Patent No. FIG. 6 shows the configuration of the traveling direction indicator in the auxiliary display device of the on-board route guidance device described in this publication.

A traveling direction indicator C for instructing a traveling direction of the vehicle includes a left turn instruction LED 101 and a right turn instruction L.
ED 102, straight ahead instruction LED 103, 7-segment LED 103 indicating the number of intersections until left or right turn, arrival display LED 104 indicating that the vehicle has approached or arrived at the destination
It consists of.

[0008] The traveling direction indicator C is mounted at a position in front of the driver's seat where it is easily visible to the driver, and responds to the signal obtained by converting the road guidance information output from the car navigation device body by the converter. Each LED is turned on or blinked.

[0009] Thus, the driver can surely confirm the road guidance information without impairing the safety during driving and without moving his / her eyes.

[0010]

However, in the auxiliary display device of the in-vehicle route guidance device described in JP-A-8-184453, although the number of intersections until a left turn or a right turn is displayed, The distance from the running position of the vehicle to the left or right turn point was not known. For this reason, it is not known how much the vehicle should be decelerated, and when the distance has been reduced, the driver has to apply a sudden brake. As a result, driving safety is considerably impaired.

The present invention provides an auxiliary display device for a vehicle-mounted route guidance device capable of reliably confirming road guidance information without moving a line of sight and further improving safety during driving. The task is to

[0012]

The present invention has the following arrangement to solve the above-mentioned problems. The invention according to claim 1 is an auxiliary display device of an in-vehicle route guidance device that displays road guidance information related to the traveling of the vehicle on a map displayed on a monitor in accordance with the traveling position of the vehicle, And a left-turn indicator that emits light when the direction instruction based on the road guidance information output from the on-vehicle route guidance device is a left-turn instruction; A right turn indicator that emits light when the direction instruction based on the road guidance information output from the device is a right turn instruction, and the left turn indicator that emits light according to the distance from the traveling position of the vehicle to a left turn point or a right turn point Alternatively, a light emission control unit that changes a light emission color of the right turn display is provided.

According to the first aspect of the present invention, the left turn indicator is
Lights up when the direction instruction based on the road guidance information output from the in-vehicle route guidance device is a left turn instruction, and the right turn indicator indicates that the direction instruction based on the road guidance information output from the in-vehicle route guidance device is a right turn instruction. It emits light when. In addition, the light emission control unit can change the light emission color of the left turn indicator or the right turn indicator that emits light according to the distance from the traveling position of the vehicle to the left turn point or the right turn point, and can confirm a left turn or right turn direction instruction, The extent of the distance can be confirmed by the emission color, and the safety during driving can be further improved. Further, since the left turn indicator and the right turn indicator are arranged in front of the driver's seat, road guidance information can be confirmed without moving the line of sight.

According to a second aspect of the present invention, each of the left turn indicator and the right turn indicator is provided with a plurality of light emitting elements having different emission colors.

According to the second aspect of the present invention, since each of the left turn indicator and the right turn indicator is provided with a plurality of light emitting elements having different emission colors, the light emitting elements having different emission colors can emit light in accordance with the distance. Can be.

According to a third aspect of the present invention, there is provided a distance determining unit for determining whether the distance belongs to any of the plurality of distance ranges when the distance is divided into a plurality of distance ranges. The plurality of light emitting elements are provided so as to correspond to the plurality of distance ranges, and the light emission control unit causes the light emitting elements corresponding to the distance range determined by the distance determination unit to emit light. .

According to the third aspect of the present invention, the distance determination section
When the distance is divided into a plurality of distance ranges, it is determined whether the distance belongs to any of the plurality of distance ranges, and the light emission control unit corresponds to the distance range determined by the distance determination unit. Since the light-emitting elements emit light, light-emitting elements having different emission colors emit light according to the distance range, so that safety during operation can be further improved.

The invention according to a fourth aspect is characterized in that each of the left turn indicator and the right turn indicator is provided on a surface of a dashboard arranged in front of a driver's seat.

According to the fourth aspect of the present invention, each of the left turn indicator and the right turn indicator is provided on the surface of the dashboard arranged in front of the driver's seat, so that the road is naturally moved without moving the line of sight. Guide information can be confirmed.

[0020]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an auxiliary display device for a vehicle route guidance device according to the present invention. FIG. 1 is a block diagram showing a configuration of an embodiment of an auxiliary display device of an in-vehicle route guidance device according to the present invention.

In FIG. 1, the auxiliary display device of the in-vehicle route guidance device includes a car navigation body 11 as an in-vehicle route guidance device, an input / output unit (hereinafter abbreviated as I / O) 13, a microcomputer 15, Left turn indicator 1
7a and a right turn indicator 17b. The microcomputer 15 includes a direction instruction determination unit 19, a distance determination unit 21,
The light emitting device control unit 23 is provided.

The car navigation body 11 is mounted on an audio device (not shown), and sequentially displays road guidance information on a monitor (not shown) based on a previously inputted destination. And outputs it to the microcomputer 15. Because of the size of the monitor, it is located on the audio device below the dashboard. The road guidance information is displayed as a traveling direction along a road on a map corresponding to a traveling position of a vehicle such as an automobile.

The direction instruction determining unit 19 determines whether the information is a turn instruction or a left turn instruction or a right turn instruction based on the input road guidance information. Based on the distance information input from the car navigation body 11, the distance determination unit 21 determines that the distance (that is, the distance from the traveling position to the left turn point or right turn point) is 15 to 30 m before the turning point (left turn point or right turn point). It is determined whether the distance is 15 to 30 m before the curved point, and a green drive signal for causing the green light emitting element 35G to emit light is output.

The distance judging section 21 determines that the distance is at the turning point 5
Judge whether it is 15m before, and the distance is 5-15m at the music point
If it is in front, a yellow drive signal for causing the yellow light emitting element 35Y to emit light is output. The distance determination unit 21 determines whether or not the distance is before the turning point 0 to 5 m, and determines whether the distance is the turning point 0 to 5 m.
If it is on the near side, a red driving signal for causing the red light emitting element 35R to emit light is output.

Based on the drive signal from the distance judging unit 21 and the left turn instruction information or the right turn instruction information from the direction instruction judging unit 19, the light emitting element control unit 23, if it is a left turn instruction, displays the left turn display 17a. The light emitting element corresponding to the input drive signal is caused to emit light. If the instruction to turn right is made, the light emitting element control unit 23 causes the light emitting element corresponding to the input drive signal in the right turn indicator 17b to emit light.

FIG. 2 is a diagram showing three light emitting elements provided on the left turn indicator and the right turn indicator. Left turn indicator 17
a and the right turn indicator 17b include a red light emitting element 35R that emits red light on the front surface 33 and a yellow light emitting element 35 that emits yellow light.
Y and a green light emitting element 35G that emits green light are arranged. Each light-emitting element is a light-emitting element such as a bulb that emits a certain amount of strong light, and represents a distance range according to the emission color of these light-emitting elements. The light emitting element is
For example, a light emitting diode (LED) may be used.

FIG. 3 shows a left turn indicator and a right turn indicator mounted on both sides of the dashboard surface. The dashboard 41 is arranged in front of the driver. Inside the dashboard 41, a speed meter 42,
A rotation meter 43, an AT shift position 44, a left turn instruction light emitting element 45, and a right turn instruction light emitting element 46 are provided.

A left turn indicator 17a is attached to the left curved portion of the dashboard 41.
A right-turn indicator 17b is attached to the right-hand curved portion of. The left-turn indicator 17a and the right-turn indicator 17b may be installed anywhere other than the left and right curved portions of the dashboard 41 as long as the line of sight does not need to be moved as much as possible.

Next, the operation of the auxiliary display device of the on-board route guidance device according to the embodiment configured as described above will be described.
FIG. 5 is a flowchart illustrating the operation of the auxiliary display device of the vehicle-mounted route guidance device according to the embodiment.

First, road guidance information is output from the car navigation body 11 to the microcomputer 15 via the I / O 13 (step S11). In the microcomputer 15, based on the input road guidance information, the direction instruction determination unit 19 determines whether the information is an instruction to turn (step S13).

If the information is not a turn instruction, it is determined whether the information is a straight-ahead instruction (step S15).
Here, if it is a straight-ahead instruction, there is no lighting (output) of the light emitting element, and the driver is informed of that.

On the other hand, if the information is a turn instruction, the microcomputer 15 controls the car navigation body 1
Further, distance information is inputted from step 1 (step S17).
It is determined whether the current position is 30 m ahead (step S19).

If the distance is 15 to 30 m before the turning point,
The distance determination unit 21 outputs a green driving signal for causing the green light emitting element 35G to emit light to the light emitting element control unit 23 (Step S21).

Next, in step S19, if the distance is not 15 to 30m before the curved point, the distance determination unit 21
Based on the distance information, it is determined whether the distance is 5 to 15 m before the music point (step S23).

If the distance is 5 to 15 m before the curved point, the distance determination unit 21 outputs a yellow drive signal for causing the yellow light emitting element 35Y to emit light to the light emitting element control unit 23 (step S25).

Further, in step S23, if the distance is not 5 to 15m before the curved point, the distance determination unit 21
Based on the distance information, it is determined whether or not the distance is between 0 and 5 m from the music point (step S27). If the distance is 0 to 5 m before the music point, the distance determination unit 21 outputs a red driving signal for causing the red light emitting element 35R to emit light to the light emitting element control unit 23 (Step S29).

Next, the direction instruction determining unit 19 determines whether the road guidance information is a left turn instruction or a right turn instruction (step S3).
1) The left turn instruction information or the right turn instruction information is output to the light emitting element control unit 23 according to the determination result.

Next, based on the drive signal from the distance judging unit 21 and the left turn instruction information or the right turn instruction information from the direction instruction judging unit 19, the light emitting element control unit 23 outputs a left turn indicator 17a if it is a left turn instruction. Out of the light emitting elements corresponding to the input drive signal (step S33). For this reason, the driver can turn left by seeing the light emitting element that has emitted light.

On the other hand, if it is a right turn, the light emitting element control unit 23 causes the light emitting element corresponding to the input drive signal in the right turn display 17b to emit light (step S35). Therefore, the driver can change the direction to the right by seeing the light emitting element that has emitted light.

For example, when the direction instruction judging section 19 judges a left turn instruction and the distance judging section 21 outputs a red driving signal, as shown in FIG. 4, the red light emitting element provided on the left turn display 17a is provided. 35R emits light (the red light emitting element 35 in FIG. 4).
The emission of R is indicated by a black circle. ). For this reason, the driver does not move his / her line of sight, and the red light emitting element 1 of the left turn display 17a.
By looking at 7a, it is possible to make a left turn and to confirm that it is 0-5m to the turning point.

As described above, according to the auxiliary display device of the in-vehicle route guidance device of the embodiment, the left turn indicator 17a emits light when the direction instruction based on the road guidance information is a left turn instruction, and the right turn indicator 17a emits light. 17b emits light when the direction instruction based on the road guidance information is a right turn instruction.

Further, the light emitting element control unit 23 can change the light emission color of the left turn display 17a or the right turn display 17b which emits light in accordance with the distance. It is possible to confirm how much the vehicle can be operated, and the safety during driving can be further improved.

Further, the left turn indicator 17a and the right turn indicator 1
Since 7b is provided on the dashboard 41 arranged in front of the driver's seat, the front naturally enters the field of view, so that road guidance information can be checked without moving the line of sight.

Further, a left turn indicator 1 having a simpler structure for indicating a direction in car navigation than a display is provided.
Since the display is performed by the 7a and the right turn display 17b, the auxiliary display device is inexpensive.

Further, since the vehicle can turn naturally while looking ahead without a voice instruction, even a person with hearing impairments can easily drive the vehicle.

The present invention is not limited to the embodiment described above. In the embodiment, the left turn indicator 1
Although three light emitting elements are provided in each of the 7a and the right turn display 17b, four or more light emitting elements may be provided so that each light emitting element emits light according to the distance. In addition, it goes without saying that various modifications can be made without departing from the technical idea of the present invention.

[0047]

According to the first aspect of the present invention, the left turn indicator emits light when the direction instruction based on the road guidance information output from the on-vehicle route guidance device is a left turn instruction, and the right turn indicator is The light emission control unit emits light when the direction instruction based on the road guidance information output from the in-vehicle route guidance device is a right turn instruction, and the light emission control unit emits a left turn according to the distance from the traveling position of the vehicle to the left or right turn point. In order to change the light emission color of the display or right turn display, it is possible to confirm the direction of left turn or right turn, and it is also possible to check how far the distance is by the light emission color, further improving safety during driving. . Further, since the left turn indicator and the right turn indicator are arranged in front of the driver's seat, road guidance information can be confirmed without moving the line of sight.

According to the second aspect of the present invention, since each of the left turn indicator and the right turn indicator is provided with a plurality of light emitting elements having different emission colors, the light emitting elements having different emission colors can emit light in accordance with the distance. Can be.

According to the third aspect of the present invention, the distance determination section
When the distance is divided into a plurality of distance ranges, it is determined whether the distance belongs to any of the plurality of distance ranges, and the light emission control unit corresponds to the distance range determined by the distance determination unit. Since the light-emitting elements emit light, light-emitting elements having different emission colors emit light according to the distance range, so that safety during operation can be further improved.

According to the fourth aspect of the present invention, since each of the left turn indicator and the right turn indicator is provided on the surface of the dashboard arranged in front of the driver's seat, it is possible to naturally move the road without moving the line of sight. Guide information can be confirmed.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing three light emitting elements provided in a left turn indicator and a right turn indicator.

FIG. 3 shows a left turn indicator and a right turn indicator mounted on both sides of the surface of the dashboard.

FIG. 4 is a diagram showing a state in which a red light emitting element of a left turn display emits light.

FIG. 5 is a flowchart illustrating an operation of the auxiliary display device of the vehicle-mounted route guidance device according to the embodiment;

FIG. 6 is a diagram showing a configuration of a traveling direction indicator in an auxiliary display device of a conventional in-vehicle route guidance device.

[Explanation of symbols]

 Reference Signs List 11 car navigation body 13 I / O 15 microcomputer 17a left turn indicator 17b right turn indicator 19 direction indication determination unit 21 distance determination unit 23 light emitting element control unit 35R red light emitting element 35Y yellow light emitting element 35G green light emitting element 41 dashboard 42 speed Meter 43 Rotation meter 44 AT shift position

Claims (4)

[Claims] 1. An auxiliary display device of an in-vehicle route guidance device for displaying road guidance information related to the traveling of a vehicle on a map displayed on a monitor in accordance with a traveling position of the vehicle, wherein the auxiliary display device is arranged in front of a driver's seat. A left turn indicator that emits light when the direction instruction based on the road guidance information output from the on-vehicle route guidance device is a left turn instruction, and is disposed in front of the driver's seat, and is provided from the on-vehicle route guidance device. A right turn indicator that emits light when the direction instruction based on the output road guidance information is a right turn instruction, and the left turn indicator or the light that emits light according to the distance from the traveling position of the vehicle to a left turn point or a right turn point. An auxiliary display device for an in-vehicle route guidance device, comprising: a light emission control unit that changes a light emission color of a right turn display. 2. The auxiliary display device according to claim 1, wherein each of the left turn display and the right turn display includes a plurality of light emitting elements having different emission colors. 3. The method according to claim 2, further comprising: a distance determination unit configured to determine whether the distance belongs to any one of the plurality of distance ranges when the distance is divided into a plurality of distance ranges. The device according to claim 2, wherein the device is provided in correspondence with the plurality of distance ranges, and the light emission control unit causes the light emitting device corresponding to the distance range determined by the distance determination unit to emit light. Auxiliary display device for in-vehicle route guidance device. 4. The in-vehicle route guidance device according to claim 1, wherein each of the left turn indicator and the right turn indicator is provided on a surface of a dashboard arranged in front of the driver's seat. Auxiliary display.