JP2002048572A - Position detecting system and navigation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a position detecting system and navigation system capable of precisely retrieving a specified place or facility even when precise information therefor is unknown. SOLUTION: A voice recognition processing part 52 gains a voice data corresponding to the voices of a user and an opposite party from a data input and output part 50 during a conversation using a mobile telephone 1 and performs a voice recognition processing to the voice data to output a character data. A keyword extraction part 54 extracts a position specifying keyword forming the key of specifying the position of the opposite party from the character data outputted from the voice recognition processing part 52. A point setting part 56 detects the rough position of the opposite party on the basis of the area information data outputted from the data input and output part 50 and specifies the point (longitude and latitude) as the detailed position of the opposite party on the basis of the position specifying keyword outputted from the keyword extraction part 54.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position detection system and a navigation system for detecting a specific point and searching for map information and a traveling route around the specific point.

[0002]

2. Description of the Related Art Generally, an on-vehicle navigation system detects a current position of a vehicle, reads map data corresponding to the current position from a data storage medium such as a CD or DVD, and displays a map around the position of the vehicle on a screen. Display above. Also, a vehicle position mark indicating the own vehicle position is displayed at a predetermined position on the screen, and the map of the vicinity is scrolled around the vehicle position mark as the own vehicle advances.

[0003] Most of the recent navigation systems are equipped with a facility search function for searching for a desired facility or private home by various methods and displaying map information around the facility. In this facility search function, for example, a facility name, a telephone number, an address, or the like is input, or a facility genre (a department store, a convenience store, a gas station, etc.) is specified, and a list of applicable facilities is displayed. By selecting a desired facility from among them, the location of the facility can be searched and map information around the facility can be displayed. Further, after a desired facility is specified, detailed information on the facility (for example, when a department store is searched, business hours and appearance images, etc.) are displayed, and the location of the facility is set as a destination. A route search can also be performed.

[0004]

In the facility search function of the conventional navigation system, when it is desired to specify a specific place, the address of the place or the name or telephone number of the facility or the like existing in the vicinity is required. Therefore, there is a problem that it is not possible to perform an accurate search for a place or a facility without knowing such accurate information.

[0005] For example, if it is desired to put a friend at a certain place during a drive, the friend calls the passenger of the vehicle to explain the current position and guides the vehicle to the place where the friend is waiting. Think about it. If a friend knows the name of the facility at the meeting place, the phone number of this facility, or the exact address of the meeting place, and can inform the passenger of the vehicle, the specific location based on this information Can be searched, but in many cases friends do not know this information accurately.
For example, if you meet at a famous convenience store in a land that you are not familiar with, you can not search for a specific place even if you specify this famous convenience store and search, so the place where your friends are currently Can not know. As described above, in the conventional navigation system, it is not possible to search for a specific place unless the facility name, telephone number, or address having distinctiveness is accurately known, and the usability is poor.

[0006] The present invention has been made in view of the above points, and a purpose thereof is to enable accurate search of a specific place or facility even when accurate information is not known. A position detection system and a navigation system are provided.

[0007]

In order to solve the above-mentioned problems, a position detecting system according to the present invention uses a radio wave emitted from a mobile terminal to transmit a general range in which the mobile terminal exists. In addition to the detection by the position specifying means, the content of the voice of the speaker sent from the mobile terminal is analyzed by the speaker voice analyzing means, and based on the analysis result by the speaker voice analyzing means, the detailed position specifying means described above. The detailed position included in the rough range is specified. By detecting the approximate range where the mobile terminal is located,
Since the target range for searching for the detailed position can be narrowed down to a limited range (for example, a range with a radius of about several hundred meters), the content of the voice of the speaker is analyzed to specify the detailed position. By extracting information as a clue, it is possible to accurately specify a specific place or facility location even when accurate information is not known.

It is preferable that the apparatus further comprises a receiving means for wirelessly receiving the voice signal of the speaker transmitted from the mobile terminal and a detection result by the transmitting position specifying means. By making it possible to wirelessly receive the voice signal and the detection result of the transmission position, it is possible to freely move the installation position of the detailed position specifying means, so that the present invention can be applied to a mobile object such as a vehicle-mounted navigation device. It becomes easy to apply the position detection system.

Preferably, each of the mobile terminal and the receiving means is realized by a mobile telephone. Currently, mobile phones and PHS (Personal Handyph)
By realizing the mobile terminal and the receiving means using a mobile telephone such as oneSystem, a position detection system can be realized easily and at low cost.

Preferably, the above-mentioned speaker voice analyzing means is a voice recognition device. By performing voice recognition processing on the voice of the speaker, the voice content can be converted into character data, so that the voice content can be easily analyzed. Further, the above-described detailed position specifying means is included in the vehicle-mounted navigation device, and when the position specifying keyword included in the speaker's voice is extracted by the speech recognition device, the detailed position specifying means is used based on the position specifying keyword. It is desirable to specify the location. By setting a predetermined position specifying keyword as a clue to specify the detailed position in advance, the detailed position is specified by a simple process of searching for the word corresponding to the position specifying keyword from the speaker's voice can do. In particular, most on-vehicle navigation devices have a function of specifying the position of various facilities based on various keywords (for example, the genre of the facilities, etc.). The position specifying means can be realized at low cost.

Further, in the position detection system of the present invention, a general range in which the mobile terminal is present is detected by the transmission position specifying means using radio waves emitted from the mobile terminal, and transmitted from the mobile terminal. The receiving unit wirelessly receives the detection result by the transmitting position specifying unit together with the incoming character information. Based on the character information sent from the mobile terminal, the detailed position included in the general range described above is set to the detailed position. Specified by specific means. By detecting the approximate range in which the mobile terminal is located, the target range for searching for the detailed position can be narrowed down to a limited range (for example, a range with a radius of several hundred meters). By extracting information that serves as a clue for specifying a detailed position from the information, it is possible to accurately specify a specific place or facility position even when accurate information is not known.

[0012] Preferably, the receiving means is realized by a mobile telephone. By realizing the receiving means using a mobile phone such as a mobile phone or a PHS which is currently widely used, a position detection system can be realized easily and at low cost. Preferably, the detailed position specifying means is included in the in-vehicle navigation device, and specifies the detailed position based on the position specifying keyword included in the character information described above. By setting a predetermined position specifying keyword as a clue for specifying the detailed position in advance, the detailed position can be specified by a simple process of searching for the word corresponding to the position specifying keyword from the character information. Can be. Further, as described above, most of the on-vehicle navigation devices have a function of specifying the position of various facilities based on various keywords (for example, genres of facilities, etc.), so this function is used. Thus, the detailed position specifying means can be realized at low cost.

The above-mentioned position specifying keyword is facility information, and the detailed position specifying means specifies the location of the facility included in the general range as a detailed position by searching a facility information database. Is desirable. Most of the general navigation devices have a facility information database for searching for the location of various facilities, and use this to set a search range corresponding to a rough range. By searching for a facility corresponding to the facility information indicated by the location specifying keyword, a detailed location can be specified. Therefore, there is an advantage that it is not necessary to newly create a facility information database.

The mobile telephone used as the receiving means is desirably connected to the above-described detailed position specifying means via an interface terminal provided on the mobile telephone and a predetermined cable connected thereto. . Normally, mobile phones such as mobile phones and PHSs are provided with interface terminals for transmitting and receiving various data to and from external devices. , The voice or character information of the speaker and the result of the detection of the approximate range by the transmission position specifying means can be easily obtained.
In particular, by using a cable, it is possible to connect the interface terminal on the mobile phone side and the transmission position specifying means at low cost.

Further, the mobile telephone used as the above-mentioned receiving means has a removable memory card,
The memory card may be removed after storing the reception information of the mobile phone in the mounted state, and may be inserted into a predetermined slot provided on the detailed position specifying means side so that input / output of the reception information is performed. . Even when information such as a speaker's voice is transmitted when the mobile phone is away from the detailed location specifying means, specifically, in a location where connection by a cable is difficult, the received information is stored in the memory card. Can be temporarily stored, so that the operation of receiving information such as the voice of the speaker and the operation of transmitting the received information to the detailed position specifying means can be performed at different timings. .

Further, the navigation device described above has a map display means for displaying map information around the detailed position specified by the detailed position specifying means, and a travel linking a specific departure point with the detailed position as a destination. It is desirable to have a route search means for searching for a route. By displaying the map information around the detailed position, the detailed position specified by the detailed position specifying means can be grasped easily and reliably. Further, by performing a route search with the detailed position as the destination, it is possible to know the traveling route to the detailed position.

Further, in the navigation system of the present invention, the approximate position information relating to the approximate area where the mobile terminal outside the vehicle exists, and the voice information of the speaker transmitted from the mobile terminal are transmitted. Sometimes, the information is captured by the information receiving unit, and the content of the voice information captured by the information receiving unit is analyzed by the speaker voice analyzing unit. Based on the analysis result by the speaker voice analyzing unit, the above-described outline is used. The detailed position included in the schematic range indicated by the position information is specified by the detailed position specifying means. Based on the approximate position information, the target range when searching for the detailed position can be narrowed down to a certain limited range, so that it can be a clue for analyzing the contents of the speaker's voice and specifying the detailed position. By extracting accurate information, it is possible to accurately specify a specific place or facility location even when accurate information is not known.

It is desirable that the above-mentioned speaker voice analyzing means is realized by a voice recognition device. By performing voice recognition processing on the voice of the speaker, the voice content can be converted into character data, so that the voice content can be easily analyzed. Further, it is preferable that when the position recognition keyword included in the voice of the speaker is extracted by the speech recognition device, the detailed position specification unit specifies the detailed position based on the position specification keyword. By setting a predetermined position specifying keyword as a clue to specify the detailed position in advance, the detailed position is specified by a simple process of searching for the word corresponding to the position specifying keyword from the speaker's voice can do. In addition, as described above, most of the navigation devices have a function of specifying the position of various facilities based on various keywords. By using this function, the detailed position specifying means can be implemented at low cost. Can be realized.

The above-mentioned position specifying keyword is facility information, and the detailed position specifying means searches the facility information database to specify the location of the relevant facility included in the general range as the detailed position. Is desirable. As described above, a general navigation device originally has a facility information database for searching for the location of various facilities, and by using this, it is not necessary to create a new facility information database. The navigation system of the present invention can be realized at low cost.

Further, map display means for displaying map information around the detailed position specified by the detailed position specifying means, and a route for searching for a travel route connecting the specific position to a predetermined departure point. It is desirable to have a search means. By displaying the map information around the detailed position, the detailed position specified by the detailed position specifying means can be grasped easily and reliably. Further, by performing a route search with the detailed position as the destination, it is possible to know the traveling route to the detailed position.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A navigation system according to an embodiment of the present invention will be described below with reference to the drawings. [First Embodiment] FIG. 1 is a diagram showing an overall configuration of a network system including a navigation system according to a first embodiment. The network system shown in FIG. 1 includes mobile phones 1 and 2, a navigation device 3, base stations 4 and 5, a mobile phone network 6, and an area information server 7. Among them, the mobile phone 1 and the navigation device 3 are installed in the vehicle,
Thus, the navigation system 10 of the present embodiment
0 is configured.

The mobile telephone 1 is connected to the mobile telephone network 6 for transmitting and receiving radio waves to and from a base station 4 installed near the own vehicle, and is used for making a telephone call. It is connected to the navigation device 3 via an external data input / output terminal as an interface terminal provided on the telephone body.

The mobile phone 2 is located at a location different from the location of the vehicle (for example, the navigation system 100).
Is connected to the mobile telephone network 6 for transmitting and receiving radio waves to and from the base station 5 installed near the place where the user is located. These mobile phones 1 and 2 are realized by a mobile phone, a PHS (Personal Handyphone System), or the like, which is currently widely used.

The navigation device 3 detects the position of the vehicle and displays map information around the vehicle, and performs route search and route guidance to a destination set by the user. Further, the navigation device 3 is connected to the mobile phone 1 and acquires the contents of the call as voice data, or sets the location of the other party, that is, the location of the mobile phone 2 to a certain extent (for example, a radius of 500).
m or less) can be received. Note that the area information data may indicate the coordinate value of a specific point including a predetermined error, in addition to the case where the area information data indicates the location range of the mobile phone 2.

The area information server 7 includes mobile phones 1 and 2
Also, the location of the mobile telephone of another subscriber (not shown) is checked as needed, and processing for storing and updating an area information database including predetermined area information data for specifying the location of each mobile telephone is performed. Specifically, the area is
This refers to a range covered by each of the base stations 4 and 5 and other base stations (not shown). For example, an area having a diameter of about several hundred meters is set for each base station.

FIG. 2 is a diagram for explaining the contents of the area information database. As shown in the figure, the area information database includes (1) an identification code for identifying each mobile telephone, and (2) which base station belongs to an area controlled by which base station. And (3) coordinate positions (for example, center coordinates of the location of the base station) representative of each area are stored in association with longitude and latitude coordinate information. Moves and enters an area under the control of another base station, the area code and coordinate information are updated. For example, focusing on the mobile phone 1, it is associated with a predetermined identification code "A" (actually, it is composed of a plurality of digits, symbols, etc., but will be briefly described here). An area code indicating that the area to which the area belongs is an area under the control of the base station 4 and coordinate information (○, ×) corresponding to this area are stored. Similarly, mobile phone 2
Is associated with a predetermined identification code “B”,
An area code indicating that the area is controlled by the base station 5 and coordinate information corresponding to the area (△, □).
And are stored.

In the above-described example, the case where the location of the mobile phone 2 is specified for each area of each base station has been described. However, two radio waves simultaneously transmitted from the mobile phone 2 are received. The accuracy of detecting the location of the mobile phone 2 can be enhanced by integrating the above information of the base stations. Also, whether the mobile phone 2 is a mobile phone or a PHS
, The detection accuracy also differs. Generally, it is preferable to use PHS in order to perform accurate position detection.

Next, a detailed configuration of the navigation device 3 will be described. FIG. 3 is a diagram illustrating a detailed configuration of the navigation device 3 according to the first embodiment. The navigation device 3 shown in FIG.
0, a DVD 11, a disk reading device 12, a vehicle position detecting unit 13, an operating unit 14, a microphone 15, and a display device 16.

The navigation controller 10 performs various controls for realizing a predetermined navigation operation. The detailed configuration of the navigation controller 1 will be described later. The DVD 11 records various map data necessary for map display, route search, and the like. The disk reading device 12 can load one or a plurality of DVDs 11 and reads map data from any one of the DVDs 11 under the control of the navigation controller 10. The loaded disc is not necessarily DV
It does not need to be D, and may be CD. DVD and CD
May be selectively loadable.

The vehicle position detector 13 includes, for example, a GPS receiver, a direction sensor, and a distance sensor, and detects the vehicle position (longitude and latitude) at a predetermined timing.
Output the detection result. The operation unit 14 includes a search key for giving a route search instruction, a route guidance mode key used for setting a route guidance mode, a destination input key, left / right / up / down cursor keys, a map reduction / enlargement key, and a cursor on the display screen. Various operation keys such as a setting key for fixing an item at a position are provided, and a signal corresponding to an operation state of the key is output to the navigation controller 10. The operation unit 14 may be realized by a remote control unit.

The microphone 15 converts a voice uttered by the user into an electric signal in order to give various operation instructions, and outputs the electric signal to the navigation controller 10. The navigation device 3 of the present embodiment has a voice recognition function, and can input various operation instructions by voice in addition to the operation using the operation unit 14.

The display device 16 displays various images such as map information around the vehicle based on the drawing data output from the navigation controller 10. The navigation controller 10 includes a buffer memory 20, a data read control unit 22, a map drawing unit 2,
4, VRAM 26, image combining unit 28, vehicle position calculating unit 3
0, route search processing unit 32, guidance route memory 34, guidance route drawing unit 36, input processing unit 40, operation screen generation unit 42,
It includes a data input / output unit 50, a speech recognition processing unit 52, a keyword extraction unit 54, and a point setting unit 56.

The buffer memory 20 temporarily stores map data read from the DVD 11 by the disk reading device 12. The map data also includes a facility information database required to extract a detailed location where the facility is located when the facility name or the like is specified. The data read control unit 22 includes a vehicle position calculated by the vehicle position calculation unit 30 and an input processing unit 40.
A read request for map data in a predetermined range is output to the disk reading device 12 based on a request from the disk reader 12.

The map drawing section 24 creates map drawing data necessary for map display based on the map data stored in the buffer memory 20. The VRAM 26 temporarily stores map drawing data created by the map drawing unit 24 and guide route drawing data created by the guide route drawing unit 36.

The image synthesizing unit 28 reads out a predetermined range of map drawing data from the VRAM 26 corresponding to the vehicle position and the like, superimposes the drawing data output from the operation screen generating unit 42 on the drawing data, and synthesizes the image. The data is output to the display device 16. The vehicle position calculation unit 30 calculates the own vehicle position and the direction based on the detection data by the vehicle position detection unit 13, and corrects the own vehicle position when the calculated own vehicle position is not on the road in the map data. Map matching processing to be performed.

The route search processing section 32 searches for a traveling route connecting a preset destination and departure place under predetermined conditions. For example, under various conditions such as the shortest distance and the shortest time, the traveling route with the minimum cost is set as the guidance route. The guidance route set by the route search processing unit 32 is stored in the guidance route memory 34.

The guide route drawing unit 36 includes the route search processing unit 3
2 is selected from the guidance route data set in the guidance route memory 34 and stored in the guidance route memory 34 and included in the map drawn in the VRAM 26 at that time, and a guidance route for displaying the guidance route overlaid on the map. Create drawing data.

The input processing unit 40 issues a command for performing a navigation operation corresponding to various operation instructions input from the operation unit 14 or various operation instructions represented by character data output from the voice recognition processing unit 52. Output to each part in the navigation controller 1 and, when it is necessary to display an operation screen, instruct the operation screen generation unit 42 to that effect. Operation screen generator 42
Creates drawing data for displaying an operation screen according to an instruction from the input processing unit 40.

The data input / output unit 50 is connected to an external data input / output terminal provided on the mobile telephone 1 by a detachable predetermined communication cable, so that various data output from the mobile telephone 1 can be navigated. Controller 1
Control for taking the value to 0 is performed. Specifically, when a call using the mobile phone 1 is being made, the data input / output unit 50 acquires voice data corresponding to the voices of the user and the other party during the call, and acquires the voice recognition processing unit. For example, a process of obtaining predetermined area information data indicating the approximate location of the mobile phone (mobile phone 2 in the present embodiment) of the other party and outputting the obtained data to the point setting unit 56 is performed. . The area information data corresponding to the call partner is stored in the area information server 7 as described above, and is transmitted from the mobile telephone network 6 to the mobile telephone 1 during a call. .

The voice recognition processing section 52 stores a signal waveform corresponding to a standard voice in an internal memory as a dictionary for voice recognition, analyzes a voice signal output from the microphone 15, and performs a predetermined voice recognition. By performing the processing, character data corresponding to the voice uttered by the user is output.
The voice recognition processing unit 52 of the present embodiment performs a predetermined voice recognition process based on voice data transmitted from the mobile phone 1 via the data input / output unit 50 and outputs character data. Also have.

The keyword extracting section 54 receives the character data output from the voice recognition processing section 52 in correspondence with the voice data transmitted from the mobile phone 1, and specifies the current location of the other party from the character data. Character data corresponding to a key word for the search, that is, a "position specifying keyword" is extracted. Specifically, as the above-described position specifying keyword, the name of a facility that is likely to be a landmark, such as a famous convenience store or a family restaurant, can be considered.

The point setting unit 56 includes the area information data output from the data input / output unit 50 and the keyword extraction unit 5
Based on the character data (character data corresponding to the position specifying keyword) output from the terminal 4, a point (longitude / latitude) as a detailed position where the other party is present is specified. When the point where the call partner is located is specified by the point setting unit 56, the map drawing unit 24 displays a map around this point on the display device 16.

When an operation instruction to set the specified point as the destination is given by an operation using the operation section 14 or a voice input to the microphone 15, the point setting section 56 specifies the specified point. Is output to the route search processing unit 32. In addition, the point setting unit 56
In addition to the above-described location setting operation based on the contents of a call, processing related to conventional general location setting is also performed. Specifically, for example, when an address, a telephone number, and the like are input using the operation unit 14, the point setting unit 56
Receives the information from the input processing unit 40 and performs a process of specifying a corresponding point. The details of the processing procedure of the point setting unit 56 when specifying the point of the other party based on the contents of the call will be described later.

The above-described base stations 4 and 5, the mobile telephone network 6,
The area information server 7 corresponds to the transmitting position specifying unit, the mobile phone 1 corresponds to the receiving unit, the voice recognition processing unit 52 corresponds to the speaker voice analyzing unit, the keyword extracting unit 54, and the point setting unit 56 correspond to the detailed position specifying unit. I do. Also, the map drawing unit 2
4, the VRAM 26 and the display device 16 correspond to a map display unit, the route search processing unit 32 corresponds to a route search unit, and the data input / output unit 50 corresponds to an information receiving unit.

The navigation system 10 of the present embodiment
0 has such a configuration, and its operation will now be described in detail. In the following description, it is assumed that a call is made between the mobile phone 1 owned by the user and the mobile phone 2 owned by a friend at a certain meeting place.

FIG. 4 is a flowchart showing the operation procedure of the navigation device 3 when specifying the location of the other party based on the contents of the call. The input processing unit 40 examines an output signal from the operation unit 14 and determines whether or not an instruction to start a predetermined process (point specifying process) for specifying a point where a call partner is present has been issued (step 100). ). Unless there is an instruction to start the point identification processing, a negative determination is made in step 100 and the apparatus enters a standby state.

When an instruction to start the spot specifying process is issued, an affirmative determination is made in step 100, and the input processing unit 40 sends a voice recognition processing unit 52 and a spot setting unit 5 to that effect.
6 is notified. The point setting unit 56 that has received the notification sends an instruction to the data input / output unit 50, and acquires area information data corresponding to the other party from the mobile phone 1 (step 1).
01). Next, the point setting unit 56 reads, from the buffer memory 20, map data in a predetermined range including the area where the call partner is located, based on the acquired area information data (step 102).

In parallel with the processing shown in steps 101 and 102, the voice recognition processing section 52 sends an instruction to the data input / output section 50, thereby transmitting the voice data corresponding to the contents of the call to the mobile telephone 1. And performs a predetermined voice recognition process on the voice data (step 10).
3).

Next, the keyword extracting section 54 extracts character data corresponding to a predetermined position specifying keyword from the character data output from the voice recognition processing section 52 (step 104). Here, as described above, character data corresponding to the name of a famous convenience store or the like is extracted, and conversely, the user exists near the place where the person is located with respect to the call partner, and You need to ask them to say the name of a prominent facility that corresponds to the location identification keyword.

When a predetermined position specifying keyword is extracted, the point setting section 56 searches for a corresponding facility or the like based on the position specifying keyword, and specifies a point where the facility or the like is located (step 105). The map drawing unit 24
Creates map drawing data corresponding to the periphery of a point such as a facility specified by the point setting unit 56, and displays map information on the display device 7 (step 106).

Next, the input processing unit 40 determines whether or not an instruction has been given to set the specified point as a destination of the route search (step 107). Notify the search processing unit 32. The route search processing unit 32 that has received the notification acquires the information on the point from the point setting unit 56, and performs a predetermined route search process using this point as the destination and the own vehicle position at that time as the departure point ( Step 108). The departure place may be set to an arbitrary point different from the own vehicle position.

If no instruction to set the specified point as the destination of the route search is given, a negative determination is made in step 107, and the input processing section 40 receives the signal from the operation section 14 based on the signal from the operation section 14. Then, it is determined whether or not an instruction to end the point identification processing has been given (step 10).
9). While no instruction is given, a negative determination is made in step 109, and the input processing unit 40
7, the processing after determining whether or not a destination setting instruction has been issued is repeated. When an instruction is given to end the point identification processing, a positive determination is made in step 109, and a series of point identification processing ends.

As described above, in the navigation system 100 according to the first embodiment, the area information data corresponding to the location of the mobile phone 2 of the call partner is obtained, thereby obtaining the approximate range (area) of the place where the call partner exists. ) To limit the readout range of the facility detail data, and extract a predetermined position specifying keyword from character data obtained by performing voice recognition processing on voice data corresponding to the contents of the call. By searching for a corresponding facility or the like based on the position specifying keyword, the detailed position of the call partner is specified. Therefore, even if the user does not know the exact information, the location of a specific place or facility can be accurately specified if the name or the like of a well-known convenience store that becomes a position specifying keyword is known.

[Second Embodiment] By the way, in the first embodiment, the mobile phone 1 and the navigation device 3 are connected by using a predetermined communication cable, and the contents of the call with the other party are communicated. Has acquired predetermined area information data and voice data to specify the location where the other party is located. However, a removable small-sized flash memory card (hereinafter simply referred to as “memory card”) is mounted. The contents of the call on a memory card using a mobile phone
After the end of the call, the memory card may be taken out of the mobile phone, loaded into the navigation device, and area information data or voice data may be obtained from the contents of the call stored in the memory card.

FIG. 5 is a diagram showing the configuration of the navigation system according to the second embodiment. As shown in the figure, in the present embodiment, a mobile phone 1a on which a removable memory card 200 is mounted and various data stored in the memory card 200 by loading the memory card 200 into a predetermined slot 210 The navigation system 100a is configured by combining with a navigation device 3a that can read out the information. The configuration of the entire network system according to the second embodiment is the same as that of the first embodiment described above.
This is the same as the first embodiment, and only the navigation system 100a shown in FIG. 5 is different from the first embodiment.

The mobile phone 1a connects to the mobile phone network 6 by transmitting and receiving radio waves to and from the base station 4 installed near the position of the vehicle, and performs a call and the like. By performing a predetermined operation, the voice data corresponding to the content of the call and the area information data corresponding to the area where the mobile phone 2 of the call partner is located can be stored in the memory card 200.

The navigation device 3a detects the position of the vehicle and displays map information around the vehicle, and performs route search and route guidance to the destination set by the user. Further, the navigation device 3a of the present embodiment loads the memory card 200 taken out from the mobile phone 1a into the slot 210, and
The area information data and the audio data stored in "0" can be read.

FIG. 6 is a diagram showing a detailed configuration of the navigation device 3a according to the second embodiment. The configuration of the navigation device 3a of the second embodiment shown in FIG. 6 is different from the navigation device 3 of the first embodiment in that a card reader 17 is added. Less than,
The description focuses on the differences between the two.

The card reader 17 is provided with a memory card 20
0 is attached to and detached from the slot 210, and the data input / output unit 50 in the navigation controller 10 is provided.
And reads and outputs various data stored in the loaded memory card 200.

The data input / output unit 50 of the present embodiment
Sends an instruction to the card reading device 17 so that the memory card 2
The control for taking in the various data stored in 00 into the navigation controller 10 is performed. Specifically, the data input / output unit 50 takes in the voice data stored in the memory card 200 and outputs it to the voice recognition processing unit 52, and takes in the area information data and outputs the point setting unit 56
To output the data.

The navigation system 10 of the present embodiment
0a has such a configuration, and its operation will be described next. When a user who owns the mobile phone 1a performs a predetermined operation during a call with a friend or the like who owns the mobile phone 2, the contents of the call (area information data and voice data) are loaded into the mobile phone 1a. Memory card 200
Is stored. Then, after the end of the call, the user removes the memory card 200 from the mobile phone 1a and inserts it into the slot 210 of the card reader 17 provided in the navigation device 3a. Thereafter, processing such as identification of a point where the other party is located is performed by the same procedure (see FIG. 4) as in the first embodiment described above.

As described above, in the navigation system 100a of the second embodiment, the removable memory card 2
00, the contents of the call (area information data and voice data) are stored in the memory card 200, and after the call is completed, the memory card 200 is taken out of the mobile phone 1a and navigated. The area information data and the voice data are acquired from the contents of the call stored in the memory card 200 by being loaded into the device 3a. Therefore, when the user holding the mobile phone 1a is outside the vehicle in which the navigation device 3a is installed (for example, when the user is dropping by a convenience store or a restaurant during a drive), the mobile phone 2 of a friend or the like is used. Even when a call is made with the user, the location of a specific place or facility can be accurately specified based on the contents of the call at that time.

[Third Embodiment] In each of the above-described embodiments, a predetermined keyword for specifying a point is obtained by performing a predetermined voice recognition process on voice data corresponding to the contents of a call. Although the extraction is performed based on the obtained character data, an electronic mail may be received, and the location of a friend or the like who owns the mobile phone 2 may be specified based on the contents of the electronic mail.

FIG. 7 is a diagram showing the overall configuration of a network system including the navigation system according to the third embodiment. The network system shown in FIG. 1 includes mobile phones 1 and 2, a navigation device 3b, base stations 4 and 5, a mobile phone network 6, an area information server 7, the Internet 8, and a portable information terminal device 9. The mobile phone 1 and the navigation device 3b constitute a navigation system 100b.
In FIG. 7, the same components as those in the network system of the first embodiment shown in FIG. 1 described above are denoted by the same reference numerals, and detailed description thereof will be omitted.

The navigation device 3b detects the position of the vehicle and displays map information around the vehicle, and performs route search and route guidance to the destination set by the user. Further, the navigation device 3b of the present embodiment has an electronic mail processing function. The detailed configuration of the navigation device 3b will be described later.

The Internet 8 is connected to a number of Internet service providers (hereinafter simply referred to as “providers”).
Called. ), And a network including server devices installed in public institutions and the like, and can transmit and receive e-mails via the Internet 8. Further, each of the providers included in the Internet 8 and the mobile telephone network 6 are connected by a predetermined dedicated line so that data and the like can be mutually transmitted and received.

The portable information terminal device 9 is realized by, for example, a small personal computer or the like, and is connected to the mobile phone 2 using a predetermined communication cable or the like. Used to create and send e-mail. In the present embodiment, when an e-mail created by the user's friend or the like using the portable information terminal device 9 is transmitted using the mobile phone 2, the provider (user's friend or the like) The contracted provider) transmits area information data corresponding to the location of the mobile telephone 2 to the mobile telephone network 6.
And attach it to an email.

FIG. 8 is a diagram showing a detailed configuration of the navigation device 3b according to the third embodiment. The navigation device 3b according to the third embodiment shown in the figure differs from the navigation device 3 according to the first embodiment in the internal configuration of the navigation controller 10b, and the microphone 15 is omitted. The following description focuses on the differences between the two.

The navigation controller 10b includes a buffer memory 20, a data read control unit 22, a map drawing unit 24, a VRAM 26, an image synthesizing unit 28, a vehicle position calculating unit 30, a route search processing unit 32, a guide route memory 34, and a guide route drawing. Unit 36, input processing unit 40, operation screen generation unit 4
2. It includes a data input / output unit 50, a keyword extraction unit 54, a point setting unit 56, and an e-mail processing unit 58. Navigation controller 1 of the first embodiment
Differences from 0 are that the voice recognition processing unit 52 is omitted and that an electronic mail processing unit 58 is added.

The e-mail processing section 58 performs processing for receiving the e-mail transmitted to the user, creates drawing data for displaying the contents of the e-mail, and outputs the drawing data to the image synthesizing section 28. . Thus, the content of the e-mail is displayed on the screen of the display device 16.

The data input / output unit 50 is connected to an external data input / output terminal provided on the mobile telephone 1 by a detachable predetermined communication cable, and various data output from the mobile telephone 1 are connected. Is carried out to take into the navigation controller 10b. In particular,
The data input / output unit 50 of the present embodiment performs control for taking in an electronic mail received using the mobile phone 1 into the navigation controller 10b. The e-mail captured by the data input / output unit 50 is output to the e-mail processing unit 58.

The navigation system 10 of the present embodiment
Ob has such a configuration, and its operation will be described in detail next. In the following description, an e-mail is sent from a friend at a certain meeting place to a user using the mobile phone 2 and the portable information terminal device 9, and the e-mail has already been received on the navigation device 3b side. The description proceeds on the assumption that

FIG. 9 is a flowchart partially showing the operation procedure of the navigation device 3b when specifying the location of the sender of the e-mail based on the contents of the e-mail. In the third embodiment, the basic operation procedure is the same as the procedure in the first embodiment described with reference to FIG. 4 described above, and steps 101 to 104 in FIG.
Is replaced by steps 120 to 122 shown in FIG. In the present embodiment, the place where the sender of the e-mail is present means the place where the mobile phone 2 is located at the time of transmitting the e-mail.

When an instruction to start the spot specifying process is issued, the input processing unit 40 notifies the spot setting unit 56 of the instruction. The point setting unit 56 that has received the notification sends an instruction to the e-mail processing unit 58, and acquires the area information data attached to the e-mail (step 120).

Next, the point setting section 56 reads out a predetermined range of map data including the area where the sender of the e-mail is located from the buffer memory 20 based on the acquired area information data (step 121). Further, in parallel with the processing of steps 120 to 121 described above, the keyword extracting unit 5
4 sends an instruction to the e-mail processing unit 58 to acquire character data indicating the contents of the e-mail, and extracts character data corresponding to a predetermined position specifying keyword from the acquired character data (step 122). Here, as described above, character data corresponding to the name of a famous convenience store or the like is extracted, and conversely, the user,
It is necessary to ask the sender of the e-mail to write in the e-mail the name of a prominent facility that exists around the place where the person is currently located and corresponds to the location specifying keyword. is there.

When the predetermined position specifying keyword is extracted, the processing after step 106 shown in FIG. 4 is performed. That is, the corresponding facility or the like is searched based on the extracted position specifying keyword, the point where the facility or the like is located is specified, and a map image of a predetermined range centering on the specified point is displayed. Also, if there is an instruction from the user,
A predetermined route search process is performed using a point where a facility or the like is located as a destination.

As described above, in the navigation system according to the third embodiment, the area information data is obtained based on the electronic mail and the predetermined position specifying keyword is extracted, so that the user can move at a convenient timing. Body phone 2
The information about the place where the partner who owns is obtained can be acquired to specify the point. Further, since character data is extracted from the e-mail, a voice recognition processing function is not required, and the cost of the navigation system can be reduced.

[Modifications] The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, in each of the above-described embodiments, when specifying a location where a call partner or an e-mail sender is located, a rough area is detected based on area information data, and a target location is determined based on a predetermined location specifying keyword. However, the other party talks a keyword that can detect the rough area, or the e-mail sender describes it in the e-mail, and the rough area is detected based on this. Good.

In the third embodiment described above, the reception processing of the electronic mail is performed by connecting the mobile phone 1 to the navigation device 3b having the electronic mail processing function. An electronic mail may be received using a mobile telephone equipped with an electronic mail processing function. In this case, there is no need to provide an e-mail processing function on the navigation device side.
Since it is only necessary to prepare a connection means for transferring the e-mail received by the mobile phone to the navigation device, the configuration can be simplified. Specifically, as a connection means for transferring an e-mail to the navigation device, simply connect the mobile phone and the navigation device with a predetermined communication cable as in the third embodiment. do it.

Similarly, in the third embodiment, the sender of the e-mail is the mobile phone 2 and the portable information terminal 9.
Although the electronic mail transmission processing is performed using the e-mail, the electronic mail may be created and transmitted using a mobile phone equipped with an electronic mail processing function.

If a mobile phone equipped with an e-mail processing function and a memory card is used, the contents of the e-mail are stored in the memory card as in the second embodiment. The electronic mail may be fetched by loading the memory card into the navigation device.

[0082]

As described above, according to the position detection system of the present invention, the target range when searching for a detailed position is limited to some extent by detecting the approximate range where the mobile terminal exists. Since it narrows down to a range, extracts information that is a clue for identifying the detailed position by analyzing the content of the speaker's voice, and searching for the detailed position within the limited range described above, Even when accurate information is not known, the position of a specific place or facility can be accurately specified.

Further, according to another position detecting system of the present invention, by detecting the approximate range where the mobile terminal exists, the target range for searching the detailed position is narrowed down to a limited range to some extent. Since the information that serves as a clue for specifying the detailed position is extracted from the character information sent from the mobile terminal, and the detailed position is searched within the above-described limited range, Even when accurate information is not known, the position of a specific place or facility can be accurately specified.

Further, according to the navigation system of the present invention, the target range for searching the detailed position is limited to a certain extent (for example, based on the approximate position information indicating the approximate range where the mobile terminal exists). , A radius of about several hundred meters), so that accurate information can be obtained by analyzing the contents of the speaker's voice and extracting information that can be a clue for specifying a detailed position. Even when there is no such location, the location of a specific place or facility can be accurately specified.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an overall configuration of a network system including a navigation system according to a first embodiment.

FIG. 2 is a diagram illustrating contents of an area information database.

FIG. 3 is a diagram illustrating a detailed configuration of a navigation device according to the first embodiment.

FIG. 4 is a flowchart showing an operation procedure of the navigation device when specifying a location of a call partner based on the contents of a call.

FIG. 5 is a diagram illustrating a configuration of a navigation system according to a second embodiment.

FIG. 6 is a diagram illustrating a detailed configuration of a navigation device according to a second embodiment.

FIG. 7 is a diagram illustrating an overall configuration of a network system including a navigation system according to a third embodiment.

FIG. 8 is a diagram illustrating a detailed configuration of a navigation device according to a third embodiment.

FIG. 9 is a flowchart partially showing an operation procedure of the navigation device when specifying the location of the sender of the email based on the content of the email.

[Explanation of symbols]

 1, 2 mobile phone 3 navigation device 4, 5 base station 6 mobile phone network 7 area information server 10 navigation controller 16 display device 20 buffer memory 24 map drawing unit 26 VRAM 32 route search processing unit 50 data input / output unit 52 voice Recognition processing unit 54 Keyword extraction unit 56 Point setting unit 100 Navigation system

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G08G 1/137 G08G 1/137 G09B 29/00 G09B 29/00 A 29/10 29/10 A H04Q 7 / 34 H04B 7/26 106Z F term (reference) 2C032 HB25 HC08 HC11 HD12 2F029 AA02 AB01 AB07 AB09 AC01 AC02 AC04 AC09 AC13 AD01 5H180 AA01 BB05 BB12 BB13 FF04 FF05 FF07 FF13 FF22 FF27 FF32 AFFA5A06 ABB02A04 DD19 EE02 EE10 FF03 FF23 HH22 JJ51

Claims (17)

[Claims] 1. A transmitting position specifying means for detecting a general range in which a mobile terminal is present by using a radio wave emitted from the mobile terminal, and a speaker voice transmitted from the mobile terminal. Speaker voice analyzing means for analyzing the contents; and detailed position specifying means for specifying a detailed position included in the general range based on an analysis result by the speaker voice analyzing means. Position detection system. 2. The communication device according to claim 1, further comprising a receiving unit configured to wirelessly receive a voice signal of a speaker transmitted from the mobile terminal and a detection result by the transmitting position specifying unit. Position detection system. 3. The position detection system according to claim 2, wherein each of said mobile terminal and said receiving means is a mobile telephone. 4. The position detection system according to claim 1, wherein the speaker voice analysis unit is a voice recognition device. 5. The detailed position specifying means according to claim 4, wherein the detailed position specifying means is included in an in-vehicle navigation device, and when a position specifying keyword included in the voice of the speaker is extracted by the voice recognition device. A position detecting system for specifying the detailed position based on the position specifying keyword. 6. A transmission position specifying means for detecting a general range in which the mobile terminal is present by using a radio wave emitted from the mobile terminal, and character information sent from the mobile terminal, A receiving unit that wirelessly receives a detection result by the transmitting position specifying unit; and a detailed position specifying unit that specifies a detailed position included in the general range based on the character information. Detection system. 7. The position detecting system according to claim 6, wherein said receiving means is a mobile phone. 8. The detailed position specifying means according to claim 6, wherein the detailed position specifying means is included in an in-vehicle navigation device, and specifies the detailed position based on a position specifying keyword included in the character information. Characteristic position detection system. 9. The facility according to claim 5, wherein the location specifying keyword is facility information, and wherein the detailed location specifying means searches a facility information database to find a corresponding facility included in the general range. A position detection system for specifying a location as the detailed position. 10. The detailed position specifying means according to claim 3, wherein the mobile telephone used as the receiving means is provided with an interface terminal provided on the mobile telephone and a predetermined cable connected thereto. A position detection system, which is connected to a computer. 11. The mobile phone according to claim 3, wherein the mobile phone used as the receiving unit includes a detachable memory card, and the memory card includes reception information of the mobile phone in a mounted state. The position detection system is characterized in that the received information is input and output after being stored in a predetermined slot provided on the detailed position specifying means side. 12. The navigation device according to claim 5, wherein the navigation device includes: a map display unit configured to display map information around the detailed position specified by the detailed position specifying unit; And a route searching means for searching for a traveling route connecting to the departure point of the vehicle. 13. When general position information on a general area where a mobile terminal outside a vehicle is present and voice information of a speaker transmitted from the mobile terminal are transmitted, the information is transmitted. An information receiving unit to be captured, a speaker voice analyzing unit for analyzing the content of the voice information captured by the information receiving unit, and a speaker voice analyzing unit based on the analysis result by the speaker voice analyzing unit. And a detailed position specifying means for specifying a detailed position included in the schematic range. 14. The navigation system according to claim 13, wherein the speaker voice analyzing means is a voice recognition device. 15. The detailed position specifying unit according to claim 14, wherein the detailed position specifying unit is configured to output the detailed position based on the position specifying keyword when the position specifying keyword included in the voice of the speaker is extracted by the voice recognition device. The navigation system characterized by specifying. 16. The facility according to claim 15, wherein the location specifying keyword is facility information, and wherein the detailed location specifying means searches a facility information database to determine a location of the facility included in the general range. A navigation system characterized by specifying the detailed position. 17. The map display device according to claim 13, wherein map information for displaying map information around the detailed position specified by the detailed position specifying device is provided. A navigation system comprising: a route search unit that searches for a traveling route connecting to the ground.