JPH0973598A - Device for displaying guide direction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optimum, simple and small guide direction displaying device for the navigation of a two wheeled vehicle which receives spatial limit as against a four wheeled vehicle. SOLUTION: The device is the guide direction display device for displaying a guide direction to the driver or munipulator of a travelling object and the guide direction is displayed by the turning on/off of light emitting element groups 8 which are one-dimensionally arrayed at the front side of the driver or manipulator. The guide direction is displayed by turning on/off the light emitting element groups β1 and β2, etc., so as to permit the driver to sense the continuation of the turning on/off of one or plural light emitting elements αexisting a position which indicates the guide direction within the light emitting groups 8 and to sense light spots which move from the both sides of the turning on/off continuing light emitting elements α towards both end parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guidance direction display device used in a car navigation system or the like.

[0002]

2. Description of the Related Art Recently, car navigation systems are rapidly becoming popular. Typical car navigation
The system is equipped with a positioning system such as GPS and an electronic road map stored in a CD-ROM or the like, detects the current point on the electronic road map, and refers to a target point specified in advance. Then, the driver is provided with guidance information such as how to pass the next intersection. The guidance information is provided by displaying symbols or characters for guidance on the road map being displayed on the liquid crystal display panel, outputting a voice message, or a combination of both.

[0003]

The above-mentioned conventional car navigation system is premised to be mounted on a four-wheeled vehicle, but when it is supposed to be mounted on a two-wheeled vehicle, it is limited in space as compared with a four-wheeled vehicle. In order to receive it, it is necessary to devise an optimum form for a two-wheeled vehicle different from a four-wheeled vehicle. That is,
Looking into a display screen on which a guide sign is displayed on a road map or the like while driving is unavoidable because it diverts the line of sight from the direction of the road and is accompanied by the same danger as that of the side-walking driving.

Further, in the structure in which the guidance symbol is projected in the visor of the helmet, the field of view is narrowed during driving, so that only a simple display such as an arrow can be displayed. Further, in the configuration of outputting the voice message, there is a possibility that the user may miss the listening due to the noise generated by the own vehicle. Therefore, one object of the present invention is to provide a guide direction display device which is most suitable for navigation of a two-wheeled vehicle.

[0005]

According to the guide direction display device of the present invention, the guide direction is displayed by blinking the light emitting element group arranged one-dimensionally in front of the driver. .

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to a preferred embodiment of the present invention, the light emitting element group is located at a position pointing to the guiding direction 1
Alternatively, the guidance direction is displayed by continuing to turn on the plurality of light emitting elements. According to another embodiment, the driver can perceive the light spots moving from the boundary of one or a plurality of light emitting elements or the adjacent light emitting elements existing in the position indicating the guiding direction in the light emitting element group toward both ends. The guidance direction is displayed by blinking the light emitting element group as described above. According to still another embodiment, one or a plurality of light emitting elements existing in a position pointing to the guiding direction in the light emitting element group is allowed to continue lighting, and both sides of the light emitting element for continuing the lighting are directed to both ends. The guide direction is displayed by blinking the light emitting element group so that the driver can feel the moving light spot.

Further, the light emitting element which continues to be turned on and the light emitting element which is turned on and off to make the driver feel the light spots moving toward both ends are turned on in different colors. Guidance direction display device. Furthermore, the guidance direction display device of the embodiment is mounted in front of the driver's face inside the helmet worn by the two-wheeled driver.

[0008]

FIG. 2 is a block diagram showing the configuration of a car navigation system including a guide direction display device according to an embodiment of the present invention, in which 1 is a signal processing section, 2 is an input operation section, and 3 is a signal processing section.
Is an output display unit, 4 is a road map information reproducing unit, 5 is a CD-R
OM, 6 is a GPS receiver, 7 is an LED (light emitting diode) array drive circuit, 8 is an LED array, 9 is a vehicle speed sensor, and 10 and 11 are bank and roll gyros, respectively.

The signal processing unit 1 receives the road map information reproduced by the road map information reproducing unit 4 from the CD-ROM 5 and the current position of the vehicle detected by the GPS receiver 6, respectively, and receives the information on the road map on this road map. Determine the current location of the vehicle. The signal processing unit 1 creates guide information for the driver as to how to pass through the next intersection such as straight ahead or turn left or right while referring to the target point already specified by the driver through the input operation unit 2. Also, the signal processing unit 1
Detects the traveling state of the vehicle from the vehicle speed supplied from the vehicle speed sensor 9 and the signal indicating the change in the traveling direction supplied from the gyros 10 and 11, and detects the detected traveling state and the created guidance. Based on the information, the LED drive information is created and output to the LED array drive circuit 7.

The LED array 8 is composed of a plurality of LEDs (light emitting diodes) arranged in a one-dimensional manner, and the guidance direction created by the signal processing unit 1 is displayed through the LED drive circuit 7 so that each LED blinks. Done by
This LED array 8 is configured as shown in FIGS. That is, this LED array 8
As shown in the plan view of (A), a plurality of LEDs are arranged in an arc in the frame FL, and A in (A) is
The LED drive circuit 7 is arranged on the back side of the LED array 8 as shown in FIG. As shown in the perspective view (C), the LED array 8 and its drive circuit 7 are held in the frame FL and in front of the driver's face inside the helmet worn by the driver of the two-wheeled vehicle. Be attached to. Therefore, the view from the inside of the helmet by this driving vehicle is such that the LED array 8 is arranged at the top of the front scene as shown in (D).

The display of the guiding direction in this embodiment is shown in FIG.
As shown in (D) of FIG. 3, the driver is provided with a portion α of which the LEDs are continuously lit by a plurality of LEDs located at the position indicating the guiding direction, and a light spot which moves left and right from both sides of the portion α. The part β that blinks to make you feel
It is performed by the combination of 1 and β2. The LED that keeps lighting is lit in red, and the LED for displaying the light spot that moves left and right is lit in green of a different color. Note that β
The portions 1 and β2 are conceptually displayed by arrows indicating the moving direction of the light spot, and the specific configuration thereof will be described below.

FIG. 3 shows a specific example of the display method by blinking the LED described in FIG. 1D. A continuous lighting part α is constituted by the central five LEDs (R) that continue to emit red light. In the lighting portions β1 and β2 arranged on both sides of the red lighting continuation portion α, the position of the LED (G) that emits green light in two jumps from both the left and right sides of α toward the left and right ends is one at a constant cycle. The driver is made to feel the movement of the green light spot by shifting toward the both ends. That is, the guidance direction for the driver is displayed by repeating the three lighting patterns (A), (B), and (C) shown in FIG. 3 in a constant cycle.

FIG. 4 is a conceptual diagram for explaining the relationship between the display by the LED array, the traveling direction, and the guiding direction. (A) illustrates a state in which the traveling direction and the guiding direction match. (B) exemplifies a state in which the guiding direction is changed from the traveling direction to the clockwise direction by about 45 ^° . With respect to the display of the blinking portions β1 and β2 on both sides of the continuous lighting portion α, the driver feels that the light spots that have sprung from the portion indicating the guidance direction go away to the left and right rearward.
For this reason, the guidance direction can be recognized by recognizing the point where the light spot starts, and the guidance direction can be recognized more reliably than in the case where the guidance direction is displayed only by the position of the continuous lighting portion. In addition, the light spot that is moving backwards,
The guide lights on the left and right guide rails on the road shoulders and on the left and right wall surfaces in the tunnel are reminded to the driver that they are moving backward as the vehicle progresses, so that the driver's recognition of the guide direction is more reliable. Become.

FIG. 5 (A) shows how the two-wheeled vehicle makes a right turn at an intersection while being guided by the navigation system of the present embodiment, and shows how the traveling direction changes and how the display changes the guiding direction. ) Are divided into five stages. FIG. 5B shows how the driver changes the display state corresponding to the five stages from (a) to (d).

FIG. 6 is a block diagram showing a configuration of a portion related to display control in the signal processing circuit 1 in FIG.
Reference numeral 1 is an LED controller, 12 is a D / A converter, and 13 is a voltage combiner. The LED control unit 11 issues digital data DD for instructing each of the LED arrays to blink based on the traveling guidance information such as straight traveling and turning to the right and left and the current traveling state of the vehicle.
Is generated and is output to the D / A conversion unit 12. D / A
The conversion unit 12 converts the digital data into high / low analog data AD and outputs it to the voltage synthesis circuit 13.
In the voltage synthesizer 13, the DC power supply voltage VT is superimposed on the analog data AD and transferred to the LED drive circuit 7 through the coaxial cable CL.

FIG. 7 shows the LED drive circuit 7 and LE in FIG.
FIG. 3 is a block diagram showing a configuration of a D array 8, where 71 is a voltage separation unit, 72 is an A / D conversion unit, 73 is a regulator, and 7
Reference numeral 4 is a shift register, and 75 is a register. The analog data AD sent from the signal processing unit 1 through the coaxial cable CL is the voltage separating unit 7 including a filter or the like.
It is separated from the power supply voltage VT at 1 and supplied to the A / D converter 72. The separated power supply voltage VT is supplied to the regulator 73.
After being stabilized by the LED drive circuit 7 as the power supply voltage.
It is supplied to each part inside.

The digital data DD output from the A / D converter 72 is transferred to the shift register 74 and held in synchronization with the clock signal CK. Shift register 74
When the transfer of the digital data DD to the inside is completed, the switches formed between the register 75 and the register 75 are closed all at once, and the digital data of each stage is transferred in parallel to the corresponding stage in the register 75 and held therein. It The shift register 74 and the register 75 are composed of 2n stages in a column, and two adjacent stages correspond to a pair of red and green LEDs arranged adjacent to each other. If the digital data held in any stage of the register 75 is "1", the corresponding LED emits light, and if the digital data is "0", it turns off.

As described above, an appropriate number of light-emitting elements existing in the position indicating the guiding direction in the light-emitting element group are continuously lit, and the light spots moving from both sides of the light-emitting elements to be continuously lit toward both ends. The embodiment has been described in which the guiding direction is displayed by blinking the light emitting element group so as to make the driver feel. However, in order to simplify the device, only one of them, that is, only the blinking of the light emitting element to sense the light spots moving toward both ends, or the position that points in the guiding direction is appropriate. The guiding direction can be displayed only by continuing to turn on the number of light emitting elements.

Further, as shown in FIG. 8, when the guiding direction coincides with the traveling direction of the vehicle, no display is made and the light spot moving from the central portion to the left end portion is displayed. As shown in the figure, the left LED is blinked to guide the left turn (A), and the right LED is blinked so that the light spot moving from the center to the right end is displayed. It is also possible to adopt a configuration of (B) for performing. Alternatively, instead of moving the light spot from the central portion toward the left or right end portion, the left or right LED may simply be blinked to guide the left or right turn.

Alternatively, as shown in FIG. 9, LED groups C, L and R which are separated from each other in the central portion and on the left and right sides are installed, and each LED group is blinked to guide straight ahead, left turn and right turn. It can also be configured.

A configuration in which the guide direction display device of the present invention is mounted in a helmet worn by a motorcycle driver has been illustrated.
However, this display device can be installed at an appropriate position as long as it is in front of the driver. For example, it can be mounted on the upper part of the handle of a two-wheeled vehicle, or can be installed on the upper part of a dashboard or the like in the case of a four-wheeled vehicle, or can be configured as a head-up display type.

Further, the case where the moving body is a vehicle has been illustrated. However, the guidance direction display device of the present invention can be applied to a floating body on the water such as a water surface scooter for leisure and a flying body such as a hang glider as the moving body.

[0023]

As described above in detail, since the guide direction display device of the present invention is configured to display the guide direction by blinking the light emitting element group which is arranged one-dimensionally in front of the driver, It is possible to provide a display device having a simple and small structure, which is particularly suitable for a motorcycle having a limited display space.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a guide direction display device according to an embodiment of the present invention together with a helmet to be mounted.

FIG. 2 is a block diagram showing an example of a configuration of a car navigation system including the guidance direction display device of the above embodiment.

FIG. 3 is a conceptual diagram for explaining an example of a display method in the guide direction display device of the above embodiment.

FIG. 4 is a conceptual diagram for explaining an example of a display method in the guide direction display device of the above embodiment.

FIG. 5 is a conceptual diagram for explaining an example of a display method in the guide direction display device of the above-described embodiment.

FIG. 6 is a block diagram showing an example of the configuration of a portion related to LED control in the signal processing unit 1 of FIG.

7 is a block diagram showing an example of a configuration of an LED drive circuit 7 and an LED array 8 in FIG.

FIG. 8 is a conceptual diagram for explaining a guide direction display method according to another embodiment of the present invention.

FIG. 9 is a conceptual diagram for explaining a guide direction display method according to still another embodiment of the present invention.

[Explanation of symbols]

 1 Signal processing unit 2 Input operation unit 3 Output display unit 4 Road map information reproducing unit 5 CD-ROM 6 GPS receiver 7 LED drive circuit 8 LED array FL frame α LED continuous lighting of β LED β1, β2 LED blinking The part where

Claims (6)

[Claims] 1. A guide direction display device for displaying a guide direction to a driver of a moving body or to a driver, wherein blinking of a group of light emitting elements arranged one-dimensionally in front of the driver or the driver. A guidance direction display device characterized in that the guidance direction is displayed by. 2. The guide according to claim 1, wherein the display of the guiding direction is performed by continuing lighting of one or a plurality of light emitting elements existing in a position indicating the guiding direction in the light emitting element group. Direction display. 3. The display of the guide direction according to claim 1, wherein the display of the guide direction is moved from a boundary of one or a plurality of light emitting elements existing in a position indicating the guide direction in the light emitting element group or adjacent light emitting elements toward both ends. The guide direction display device is characterized in that it is carried out by blinking the light emitting element group so as to make the driver feel the light spot. 4. The display of the guiding direction according to claim 1, wherein the one or a plurality of light emitting elements existing in a position pointing to the guiding direction in the light emitting element group is continuously lit, and the lighting is continued. A guiding direction display device, which is performed by blinking a light emitting element group so that a driver can feel a light spot moving from both sides of the element toward both ends. 5. The light-emitting element according to claim 4, wherein the light-emitting element that continues to light up and the light-emitting element that blinks to make the driver feel the light spots moving toward both ends are lit in different colors. A guide direction display device characterized in that. 6. The guide direction display device according to claim 1, wherein the guide direction display device is mounted in front of a driver's face inside a helmet worn by a two-wheeled driver.