JP2699626B2 - Voice interactive car navigation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICATION The present invention relates to speech suitable for use in a so-called multilingual area where a large number of languages are used in relatively small areas such as Europe. The present invention relates to an interactive car navigation system.

[Summary of the Invention]

The present invention, in addition to the map data on the CD-ROM disc of the CD-ROM device, is used for multilingual regions such as Europe, and the map data of the boundaries of a large number of linguistic zones and the Record language data.

Then, by obtaining from the map data that the moving vehicle has crossed the boundary of the linguistic sphere, the linguistic sphere of the linguistic data is automatically switched, and voice data is output in accordance with the linguistic sphere. This is a voice interactive car navigation system that supports languages.

2. Description of the Related Art Conventionally, there have been proposed various types of car navigation systems that combine image and sound output in consideration of the safety and operability of a driver running a vehicle.

For example, by interacting with a car navigation system using voice, a car navigation system that outputs information such as directions prepared in advance as voice and image information (see JP-A-63-261108), or
There is a car navigation system that records map data and voice data on a CD-ROM and outputs road guidance and sightseeing guidance as image and voice information (see Japanese Patent Application Laid-Open No. 1-173819).

[Problems to be solved by the invention]

However, in car navigation systems such as those mentioned above, audio output is limited to a single language, and in relatively confined areas, such as Europe, where multiple languages are used, borders may be limited. It is unsuitable for car navigation by voice output when the vehicle runs across such a language zone boundary.

It is an object of the present invention to provide a spoken interactive car navigation system suitable for use in multilingual regions such as Europe.

[Means for solving the problem]

Therefore, in order to solve the above-described problem, the present invention adds map data on a CD-ROM disk of a CD-ROM device to map data on a boundary between a large number of linguistic zones, and map data for each linguistic zone. Record language data.

Then, it is obtained from the map data that the moving vehicle has crossed the boundaries of the linguistic sphere, the linguistic territory of the linguistic data is automatically switched, and voice data in accordance with the linguistic sphere is output, so that a large number of The voice interactive car navigation system is configured to correspond to

[Action]

According to the present invention, the voice interactive car navigation system adds map data on the boundaries of a large number of linguistic zones and linguistic data for each linguistic zone in addition to the map data on the CD-ROM disk of the CD-ROM device. Recording, obtaining from the map data that the moving vehicle has crossed the boundary of the language zone, automatically switching the language zone of the language data, and outputting audio data adapted to the language zone. It can be used in multilingual regions such as Europe.

〔Example〕

Hereinafter, a voice interactive car navigation system according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a voice interactive car navigation system using self-contained navigation according to an embodiment of the present invention, and FIG. 2 is a flowchart similarly.

In FIG. 1, 1 is a central processing unit (hereinafter abbreviated as CPU), 2 is a distance sensor, 3 is an azimuth sensor, 4 is a key controller, 5 is a voice input device, 6 is an image display device, 7
Denotes an audio output device, and 8 denotes a CD-ROM device.

The distance sensor 2 is for measuring the traveling distance of the vehicle and inputting it to the CPU 1. For example, there is a sensor for measuring the traveling distance by detecting the number of rotations of the wheels. Various measuring means, such as an object, are used.
The azimuth sensor 3 is for detecting the traveling direction of the vehicle and inputting it to the CPU 1, and includes, for example, an optical rotation sensor mounted on a rotating portion of a steering wheel (handle) of the vehicle, and various other types of rotation. Sensors or angle sensors are used. The key controller 4 is for inputting a traveling course to the destination to the CPU 1 before traveling. The voice input device 5 is for interacting with a car navigation system, and includes a microphone 11 and a voice recognition device 12. The above is CPU1
Of the input device.

The image display device 6 is for displaying image data such as a map and a photograph for navigation, and includes an image processor 13 and a color cathode ray tube 14 (hereinafter abbreviated as CRT). The CRT 14 can be replaced with a color liquid crystal display device, and the size of the device can be further reduced by adopting the color liquid crystal display device. The voice output device 7 is for outputting voice for navigation, and includes a voice synthesizer 15, an amplifier 16, and a speaker.
It consists of 17. The CD-ROM device 8 records various data such as map data, voice data, and other navigation data on a built-in CD-ROM disk, outputs data requested by a command from the CPU 1 to the CPU 1, and performs voice dialogue or image and voice. Perform navigation by output. The above constitutes the output device of the CPU 1.

The CPU 1 is the center of the voice interactive car navigation system of the present invention, and when a driving course is set by the key controller 4, a memory (not shown) in the CPU 1 or a CD is provided.
-Call and execute the navigation data of the traveling course from the ROM device 8. Each navigation data includes a map displayed on the screen of the image display device 6 along the traveling course, a characteristic photograph near the border of the national border or the language zone, the border of the national border or the language zone, or the like. The distance to the destination, the distance to the destination, and other guidance information are displayed, and voice guidance is provided from the speaker 17 of the voice output device 7.

The CD-ROM device 8 stores these map, photograph, and audio data. A CD-ROM disk (not shown) stores conventionally recorded map data, for example, roads (including roads). ), Railroads, rivers, lakes, shorelines, etc., and vector data of national borders (or linguistic boundaries, hereinafter abbreviated as boundaries) in addition to vector data. In addition to data such as place names, facility names, and station names, national ID (language-speaking ID) data is additionally recorded. Multilingual audio data of each language is recorded in the audio data in the CD-ROM disk.

FIG. 2 is a flowchart showing a processing flow of a voice interactive car navigation system using self-contained navigation according to one embodiment of the present invention.

In FIG. 2, the destination has been input to the CPU 1 by the key controller 4 in advance, and the language data at the time of starting the vehicle is set to the language of the starting country. First, at step 21, the vehicle position is compared with the map data in the CD-ROM device 8. Then, in step 22, the CPU 1 determines whether or not the boundary line has been exceeded, based on the map data and the outputs of the distance sensor 2 and the azimuth sensor 3, and if not, the current state is maintained according to the flow of N. If the vehicle crosses the boundary line, the driver determines whether or not to display the local language in step 23 according to the flow of Y,
CPU 1 by key controller 4 or voice input device 5
To enter.

If the local language is not displayed, the process proceeds to step 25 according to the flow of N. If the local language is to be displayed, proceed to step 24 according to the flow of Y, select and set a local language data file from the language data in the CD-ROM device 8, display it on the image display device 6, and proceed to step 25. I do.
In step 25, the driver determines whether or not to output a local language voice, and inputs the same to the CPU 1 as in the case of displaying the local language.

If the local language voice is not output, the current state is maintained according to the flow of N. If the local language voice is to be displayed, the process proceeds to step 26 in accordance with the flow of Y, and
The voice data is changed to the local language voice data according to the language data in the device, and in preparation for voice recognition and voice guidance, an image such as a map for navigation or a photograph is displayed on the image display device 6 by interacting with voice input from the driver. Is displayed, and a sound for navigation is output from the sound output device 7.
Provide directions.

Although the voice interactive car navigation system of the present invention has been described by car navigation using self-contained navigation, it is also possible to configure a voice interactive car navigation system using car navigation by GPS, and to achieve a more accurate car navigation. System.

〔The invention's effect〕

According to the present invention, in addition to the map data of the CD-ROM disk of the CD-ROM device, map data of a large number of language zones and language data of each language zone are recorded, so that the moving vehicle By using the map data to obtain the fact that the boundaries of the linguistic sphere have been exceeded from the map data, the linguistic sphere of the linguistic data is automatically switched, and the voice interactive car navigation system is configured to output voice data according to the linguistic sphere. When a car navigation system is used in a multilingual region such as Europe, the safety and operability of a driver while the vehicle is running can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of a voice interactive car navigation system according to an embodiment of the present invention, and FIG. 2 is a flowchart of the same. In the figure, 1 ... central processing unit (CPU) 2 ... distance sensor 3 ... direction sensor 4 ... key controller 5 ... voice input device 6 ... image display device 7 ... voice output device 8 ... CD- ROM device 11 microphone 12 voice recognition device 13 image processor 14 color cathode ray tube (CRT) 15 voice synthesizer 16 amplifier 17 speaker.

Continuation of the front page (56) References JP-A-57-699 (JP, A) JP-A-58-92907 (JP, A) JP-A-63-261108 (JP, A) JP-A-3-175478 (JP) JP-A-3-109146 (JP, A) JP-A-63-250584 (JP, A) JP-A-58-155902 (JP, U)

Claims (1)

(57) [Claims] 1. A voice interactive car navigation system for recording map data and voice data on a CD-ROM disk of a CD-ROM device, outputting the map data and voice data while interacting with an input voice, and performing route guidance. In addition to the map data of the CD-ROM disc, map data of a large number of linguistic boundaries and linguistic data for each linguistic region are recorded in addition to the map data of the CD-ROM disk, and that a moving vehicle crosses the linguistic region boundaries Is obtained from the map data, the language zone of the language data is automatically switched, and voice data adapted to the language zone is output, thereby supporting a large number of language zones. Navigation system.