JP3550855B2 - Navigation device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a navigation device that recognizes telephone number guidance by voice and calculates the position of a destination and an optimal route.
[0002]
[Prior art]
2. Description of the Related Art There has been known a navigation device that recognizes a position of a moving target received by a wireless telephone by voice and displays the position on a road map (for example, see Japanese Patent Application Laid-Open No. 7-12914).
[0003]
[Problems to be solved by the invention]
However, the above-described navigation device has a problem in that it is necessary to know the telephone number of the movement target, call the other party, and obtain the address or the latitude and longitude.
[0004]
An object of the present invention is to provide a navigation device that obtains a telephone number of a visit destination using telephone number guidance, calculates a position of the visit destination and an optimal route, and guides the user.
[0005]
[Means for Solving the Problems]
The present invention is applied to a navigation device including a current position detecting means for detecting a current position, a route calculating means for calculating an optimum route from the current position to a destination, and a display means for displaying the optimum route and the current position on a road map.
Then, voice recognition means for recognizing telephone number guidance by voice, storage means for storing position information of the telephone subscriber, and position information corresponding to the telephone number recognized by the voice recognition means are searched from the storage means. Location searching means for setting the determined location as the destination, and receiving telephone number guidance from the wired telephone via the modular jack by the voice recognition means.
[0006]
【The invention's effect】
According to the present invention, telephone number guide the visited name, organization name, route guidance leading to only visited querying the telephone number telling the like facility name is started, to improve the operability In addition to this, it is possible to completely block external noise and receive telephone number guidance by voice, so that the telephone number can be reliably recognized .
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
-First embodiment of the invention-
FIG. 1 shows the configuration of the first embodiment.
The navigation device 1 is mounted on a vehicle, searches for an optimal route to a destination, displays the optimal route to the destination and the current location on a road map, and guides the occupant. The destination is inquired to the telephone number guide 4 by the wireless telephone 2 via the public telephone line relay station 3 for the telephone number of the visit destination, and the telephone number guide by voice is recognized and the position information of the subscriber corresponding to the telephone number is obtained. Search from database. Then, the position corresponding to the telephone number is set as the destination, the optimum route to the destination is calculated, and the optimum route to the destination and the current position are displayed on a road map to guide the occupant.
[0008]
Here, as the wireless telephone 2, all telephones capable of wireless communication, such as a mobile telephone and an in-vehicle telephone, can be used. 2a is an antenna of the wireless telephone 2, 2b is a receiver, and 2c is a transmitter.
The public telephone line can use a general subscribed public telephone network such as NTT or the second electric power. 3a is an antenna of the relay station.
Further, the telephone number guide 4 can use NTT104 or NTT Hello dial. Of course, a system other than NTT that can receive the same service can be used.
[0009]
The navigation device 1 includes an arithmetic control unit 11, a voice recognition encoding unit 12, a GPS receiver 13, a direction sensor 14, a mileage sensor 15, a CD-ROM 16, a latitude / longitude database 17, an operation unit 18, a memory 19, a display 20, and the like. It has.
[0010]
The arithmetic and control unit 11 is composed of a microcomputer and its peripheral devices, and performs calculations of an optimal route to a destination, a latitude / longitude search of the destination, a current position calculation by self-contained navigation, a road map display, and the like.
The voice recognition encoding unit 12 inputs the voice of the receiver 2b of the wireless telephone 2 from the pickup microphone 12a, and recognizes and codes the telephone number by voice.
[0011]
The GPS receiver 13 receives a GPS signal from a satellite and detects the current position and the traveling direction of the vehicle. The direction sensor 14 detects the traveling direction of the vehicle, and the traveling distance sensor 15 detects the traveling distance of the vehicle.
The CD-ROM 16 stores road map data, and the latitude / longitude database 17 stores the subscriber's latitude and longitude position information corresponding to the telephone number.
The operation unit 18 includes keys and switches for inputting various kinds of information such as a destination and for performing enlargement / reduction and scrolling of a map. The memory 19 includes a ROM, a RAM, a V-RAM, and the like. The display 20 displays a road map.
[0012]
FIG. 2 is a flowchart showing the processing of the arithmetic and control unit 11. The operation of the first embodiment will be described with reference to this flowchart.
First, the occupant calls the telephone number guide 4 using the wireless telephone 2 and inquires of the telephone number by telling the name of the visit, the name of the organization, the name of the facility, and the like. From the telephone number guide 4, there is a voice response saying "The telephone number of the inquiry is xxx-xxxxxx".
[0013]
In step 1, after the telephone number guidance voice emitted from the receiver 2 b is input by the pickup microphone 12 a, the process proceeds to step 2. In step 2, the telephone number by voice is recognized, and in step 3, the telephone number is encoded. Then, in step 4, the latitude / longitude corresponding to the telephone number of the visit destination is searched from the latitude / longitude database 17.
[0014]
In step 5, the latitude and longitude of the searched destination are set as the destination, and the optimum route from the current position to the destination is calculated. Here, the current location is a point set arbitrarily by the occupant, a point input from the GPS receiver 13, or a traveling direction of the vehicle detected by the direction sensor 14, a traveling distance of the vehicle detected by the traveling distance sensor 15, a CD, -A point calculated by self-contained navigation based on the road map data stored in the ROM 16.
[0015]
In step 6, road map data around the vehicle is read from the CD-ROM 16, displayed on the display 20, and the optimum route to the destination and the current position are displayed on the road map. If the vehicle moves in step 7, the process proceeds to step 8, where the road map is updated so that the current position of the vehicle is displayed at a predetermined position on the display 20, and the optimum route and the current position are displayed on the road map.
[0016]
-Embodiment of the second invention-
In the above-described first embodiment, a wireless telephone and a vehicle-mounted navigation device have been described as examples, but a second embodiment in the case of a general subscriber telephone and a portable navigation device will be described.
[0017]
FIG. 3 shows the configuration of the second embodiment. It should be noted that the same components as those of the first embodiment shown in FIG. 1 are denoted by the same reference numerals, and differences will be mainly described.
The general subscriber telephone set 2A is connected to the public telephone line relay station 3A via the telephone line cable 5, and can receive the service of the telephone number guide 4. A modular jack 2d is installed in the general subscriber telephone set 2A, and the voice from the receiver of the telephone set 2A is directly transmitted to the voice recognition encoding unit 12A of the navigation device 1A.
[0018]
The navigation device 1A is configured so that a user can walk and carry it. After inputting a telephone number of a visit destination by the general subscriber telephone 2A, the navigation device 1A is separated from the general subscriber telephone 2A and used. Therefore, the navigation device 1A is not equipped with the azimuth sensor 14A and the traveling distance sensor 15 described above. However, it is of course possible to use it on a car.
[0019]
The operation of the second embodiment is the same as the operation of the first embodiment shown in FIG. 2 described above except that the current position cannot be detected by the self-contained navigation, and a description thereof will be omitted.
[0020]
The navigation device 1 according to the first embodiment described above is configured to be detachable from the vehicle, and as described in the second embodiment, the voice of telephone number guidance is directly transmitted from a general subscriber telephone through a modular jack. You may make it input.
Further, the portable navigation device 1A of the second embodiment uses the speech recognition encoding unit 12 having a pickup microphone so as to be capable of inputting speech from a wireless telephone. Is also good.
Further, the location information of the telephone subscriber is not limited to the latitude and longitude, but may be, for example, the address of the telephone subscriber.
[0021]
In the configuration of the embodiment of the invention described above, the arithmetic and control unit 11, the GPS receiver 13, the azimuth sensor 14, the mileage sensor 15, and the CD-ROM 16 display the current position detecting means, the arithmetic and control unit 11 displays the route calculating means, and the display. Reference numeral 20 designates a display means, the speech recognition encoding unit 12 constitutes a speech recognition means, the latitude / longitude database 17 constitutes a storage means, and the arithmetic and control unit 11 constitutes a position search means.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a first embodiment.
FIG. 2 is a diagram showing the operation of the first embodiment.
FIG. 3 is a diagram showing a configuration of a second embodiment.
[Explanation of symbols]
1, 1A Navigation device 2 Radiotelephone 2a Antenna 2b Receiver 2c Transmitter 2d Modular jack 3, 3A Public telephone line relay station 3a Antenna 4 Telephone number guide 5 Telephone line cable 11 Operation control unit 12 Voice recognition encoding unit 12a Pickup microphone 13 GPS receiver 14 Orientation sensor 15 Travel distance sensor 16 CD-ROM
17 Latitude and longitude database 18 Operation unit 19 Memory 20 Display

Claims (1)

Current location detecting means for detecting the current location;
Route calculation means for calculating an optimal route from the current location to the destination;
A navigation device comprising a display means for displaying the optimal route and the current location on a road map,
Voice recognition means for recognizing voice directory assistance;
Storage means for storing location information of the telephone subscriber;
Position search means for searching the storage means for position information corresponding to the telephone number recognized by the voice recognition means, and setting the searched position to the destination ,
The navigation device , wherein the voice recognition means receives telephone number guidance from a wired telephone via a modular jack .

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