JPH08110237A - Car navigation system - Google Patents

Abstract

PURPOSE: To let a driver understand a future course intuitively by changing a constant indication direction of an informing sound in accordance with the condition of a running course and guiding a driver onto the course. CONSTITUTION: A position-estimating means 101 estimates the current position of a vehicle and a destination-setting means 102 sets a destination. A course- setting means 103 sets a course from the current position to the destination. A control means 104 obtains data of the running course from the means 103 and determines the composition of a sentence, volume of voice and constant indication direction output from a voice-generating means 105. The volume of voice and constant direction are controlled by 106 and 107. For example, when it is required to guide to turn right (left), the control means 107 controls so that a voice guide, e.g. 'please turn to the right (left)' is heard from the right (left) of a driver. The direction of the voice is changed to 30 deg., 60 deg., 90 deg. from the advancing direction of 0 deg. in accordance with the angle of an intersection where to turn to the right (left). In this manner, the indication direction of the voice guide is changed in accordance with the condition of the running course, so that the driver can understand the condition and future course of his or her vehicle intuitively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted navigation device for guiding information regarding a traveling route of a vehicle to a destination by means of a notification sound or a voice.

[0002]

2. Description of the Related Art In the case of providing route guidance in a conventional vehicle-mounted navigation device, a method is used in which a notification sound is emitted in front of an intersection where a right-and-left turn is made, and a direction of a course to be traveled is voice-guided. Was there.

[0003]

However, in the conventional navigation device, it is necessary for the driver to confirm the course to be traveled by looking at the screen only by issuing a notification sound in front of the intersection. There is a problem that it is very dangerous because the number of eye movements increases. Also, when giving directions by voice, it is necessary to understand the word "right" in the case of "right direction" guidance, and it is necessary to judge when concentrating on driving operations such as high-speed driving or driving for beginners. Could be wrong. Further, in the case of a right turn, there is a problem that the mere "right direction" may not know the bending angle and that the course may be erroneous on the modified four-way or five-way.

The present invention solves such a conventional problem by changing the localization direction and volume of the announcement sound and voice guidance according to the situation of the route to be traveled, and intuitively knowing the route the driver should take. The purpose of the present invention is to provide an excellent vehicle-mounted navigation device that can be understood in detail.

[0005]

In order to achieve the above-mentioned object, in claim 1 of the navigation device of the present invention, a vehicle current position estimating means for estimating the current position of the vehicle, and a destination setting means for setting the destination are provided. , A route setting means for setting a traveling route to a destination, a notification sound voicing means for notifying information about the traveling route with a notification sound, and a localization control means for arbitrarily controlling a localization direction of the notification sound, and a traveling route Depending on the situation, the direction of localization of the announcement sound is changed to provide route guidance.

According to a second aspect of the present invention, a voice voicing means is provided in place of the announcement sound voicing means of the first aspect, and information regarding the traveling route is provided by voice, and the localization direction of the voice is changed according to the situation of the traveling route. It is configured to provide route guidance.

According to another aspect of the present invention, the vehicle current position estimating means for estimating the current position of the vehicle, the destination setting means for setting the destination, the route setting means for setting the traveling route to the destination, and the information about the traveling route. Is provided with a notification sound voicing means and a volume control means for arbitrarily controlling the volume of the notification sound, and the volume of the notification sound is changed according to the situation of the traveling route to perform route guidance. .

According to a fourth aspect of the present invention, instead of the notification sound voicing means of the third aspect, a voice voicing means is provided to guide the information regarding the traveling route by voice, and the volume of the voice is changed according to the situation of the traveling route. It is configured to provide route guidance.

According to a fifth aspect of the present invention, vehicle current position estimating means for estimating the current position of the vehicle, destination setting means for setting a destination, route setting means for setting a traveling route to the destination, and information regarding the traveling route. A notification sound voicing means for notifying the user with a notification sound, a localization control means for arbitrarily controlling the localization direction of the notification sound, and a volume control means for arbitrarily controlling the volume of the notification sound are provided together, and the situation of the route to travel. In accordance with the above, route guidance is performed by changing the localization direction and volume of the announcement sound.

According to a sixth aspect of the present invention, a voice voicing means is provided in place of the notification sound voicing means of the fifth aspect, and information regarding the travel route is provided by voice, and the localization direction and volume of the voice are adjusted according to the situation of the travel route. Is configured to be changed to provide route guidance.

[0011]

Therefore, according to the present invention, the localization sound and the volume of the announcement sound and voice guidance used for route guidance change according to the situation of the route to be traveled, so that the driver is It has the effect of being able to intuitively judge the future course.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of an embodiment of the present invention. 101 is a vehicle current position estimating means for estimating the current position of the vehicle, 102 is a destination setting means for setting a destination,
Reference numeral 103 is a route setting means for setting a traveling route from the current position to the target position, 104 is a control means, 105 is a voice generating means, 106 is a volume control means for changing the volume of voice, 1
Reference numeral 07 is a localization control means for changing the localization direction of voice.
Reference numeral 8 is a speaker attached to the left and right in the vehicle compartment. The control unit 104 acquires the information of the route to be traveled from the route setting unit 103, determines the sentence structure of the voice output from the voice voicing unit 105, the volume and the localization direction, and the voice is the voice generating unit 1.
The sound volume and localization are controlled by volume control means 106 and localization control means 107, respectively.

Next, the operation of the above embodiment will be described. First, the case of changing the localization direction of voice will be described. For example, when performing guidance for turning left or right, the localization control means 107 provides voice guidance such as "it is the right direction" from the driver's right direction when making a right turn, and "left direction" when it is making a left turn. Control to hear. In addition, the localization direction of the voice is changed to 30 degrees, 60 degrees, and 90 degrees with the traveling direction as 0 degree according to the angle of the intersection at which the vehicle turns right or left.

FIG. 2 shows a first configuration example of the localization control means. In FIG. 2, 201 and 202 are gain adjusters, which control the direction of sound localization by providing an appropriate sound pressure difference between the left and right speakers to give a sense of localization.
However, the speaker mounted in the vehicle compartment is often asymmetrical to the driver, and it may not be possible to accurately localize the sound in an arbitrary direction simply by providing a sound pressure difference between the two speakers.

FIG. 3 shows a second configuration example of the localization control means. In FIG. 3, 301 is a low-pass filter for anti-aliasing, 302 is an A / D converter, 30
3 and 304 are FIR filters, 305 is a D / A converter, and 306 is a smoothing low-pass filter. Here, by appropriately selecting the coefficient of the FIR filter,
The voice can be accurately localized in any direction at the driver's position. Therefore, the driver can perceptually recognize the angle of the intersection to turn. Next, a case where the sound volume is changed will be described. The distance to the intersection where you turn right or left is 1km, 500m, 100m
Each time, the volume of voice is increased gradually. As a result, the driver can perceptually recognize the distance to the intersection.

As described above, according to the above-described embodiment, the localization direction and volume of the voice guidance are changed according to the situation of the route to be traveled, so that the driver can determine the situation in which the vehicle is placed and the future course. This has the effect of making an intuitive decision.

Although the voice is used for the route guidance in this embodiment, the same effect can be obtained by using the announcement sound instead of the voice and changing the volume of the announcement sound and the localization direction. It is a thing.

[0018]

According to the present invention, as is clear from the above-described embodiment, since the localization sound and the volume of the announcement sound and the voice guidance used for the route guidance change according to the situation of the route to be traveled, the driver himself or herself. It has the effect of being able to intuitively judge the situation in which a car is placed and the future course. Further, since the driver can know the course without looking at the screen, the driver can concentrate on driving, which has an effect of improving safety.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a vehicle-mounted navigation device according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a first configuration example of localization control means in the embodiment.

FIG. 3 is a block diagram showing a second configuration example of localization control means in the embodiment.

[Explanation of symbols]

 101 Vehicle Present Location Estimating Means 102 Destination Setting Means 103 Route Setting Means 104 Control Means 105 Voice Speech Means 106 Volume Control Means 107 Localization Control Means 108 Speakers 201 Gain Adjusters 202 Gain Adjusters 301 Anti-aliasing Low Pass Filters 302 A / D Converters 303 FIR filter 304 FIR filter 305 D / A converter 306 Low-pass filter for smoothing

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G10K 15/00 G10L 3/00 Q

Claims (6)

[Claims] 1. A vehicle current position estimating means for estimating a current position of a vehicle, a destination setting means for setting a destination, a route setting means for setting a traveling route to the destination, and a sound for notifying information about the traveling route. A vehicle-mounted navigation device that includes a notification sound voicing means and a localization control means that arbitrarily controls the localization direction of the notification sound, and performs route guidance by changing the localization direction of the notification sound according to the situation of the route to travel. . 2. The announcement sound voicing means includes a voice voicing means, and guides information regarding a traveling route by voice, and performs route guidance by changing the localization direction of the voice according to the situation of the traveling route. The vehicle-mounted navigation device according to item 1. 3. A vehicle current position estimating means for estimating a current position of a vehicle, a destination setting means for setting a destination, a route setting means for setting a traveling route to the destination, and a sound for notifying information about the traveling route. An in-vehicle navigation device that includes a notification sound voicing unit and a volume control unit that arbitrarily controls the volume of the notification sound, and that performs route guidance by changing the volume of the notification sound according to the situation of the traveling route. 4. The announcement sound voicing means comprises a voice voicing means, and guides the information regarding the traveling route by voice, and performs the route guidance by changing the volume of the voice according to the situation of the traveling route. In-vehicle navigation device according to the item. 5. A vehicle current position estimating means for estimating the current position of the vehicle, a destination setting means for setting a destination, a route setting means for setting a traveling route to the destination, and a sound for notifying information about the traveling route. A notification sound producing means, a localization control means for arbitrarily controlling the localization direction of the notification sound, and a volume control means for arbitrarily controlling the volume of the notification sound. An in-vehicle navigation device that provides route guidance by changing the sound localization direction and volume. 6. The announcement sound voicing means includes a voice voicing means, and guides information regarding a travel route by voice, and performs route guidance by changing the localization direction and volume of the voice according to the situation of the travel route. The vehicle-mounted navigation device according to claim 5.