JP2007155582A - Navigation system, navigation method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically perform route guidance to the nearest parking space or the like in response to a communication arrival during driving. <P>SOLUTION: A navigation system has a communication means for communicating voice and/or electronic mail to the arrival from the other information communication apparatus, and can switch between regular telephone call or the like by this communication means and a suspension response. In the case where the suspension response is set, when there is an arrival from the other information communication apparatus, the system automatically transmits, to a guidance base station, current position information created based on a signal transmitted from a communication satellite and a creation demand of route guidance data to the nearest parking space, and the guidance base station detects the nearest parking space based on these pieces of information, creates route guidance data to the nearest parking space from the current position, and transmits it to a navigation device. The navigation device performs the route guidance to the nearest parking space by voice based on the route guidance data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a navigation system, a navigation method, and a program, and more particularly, to a navigation system, a navigation method, and a program that are wirelessly connected to a public line and have a communication function for voice and / or data communication.

  Conventionally, a route guidance device such as a so-called navigation device using GPS (Global Positioning System) is known. The route guidance device is mounted on a moving body such as an automobile, and is used not only for guiding a route to a desired target point, but also applied in various fields. In particular, in recent years, application research in the technical field relating to navigation systems using small communication terminals such as mobile phones has been actively conducted. For example, Patent Document 1 discloses a navigation system that distributes a parking position of a host vehicle and a route to the parking position to a mobile phone in a large-scale parking lot provided in a large commercial facility, an amusement facility, or the like.

Incidentally, a mobile phone or the like having such a navigation function can also be used as a car navigation device. In general, operating a portable terminal while driving a car may be distracting from the concentration on driving, which is not preferable for safety. Therefore, a so-called drive mode function is provided in a mobile phone or the like. The drive mode function automatically sends a voice message or e-mail message to the other party when the voice or e-mail is received during the mode function. It is a function. After receiving this message, the transmission partner waits for a while until the driver goes off-hook, or cancels the call itself. After the driving is completed or the vehicle is parked or stopped at a safe place, the driver makes a call again based on the incoming call history of the mobile phone.
JP 2004-252809 A

  However, even if an attempt is made to stop the vehicle in response to an incoming call in the drive mode in order to make an off-hook or call again, the vehicle may not be stopped immediately due to surrounding road conditions. In addition, it is necessary to avoid stopping on the road (shoulder) as much as possible because it is necessary to avoid the safety of the following vehicles and traffic congestion, and it is preferable to stop in a dedicated parking space. However, it is not easy to find a parking space if there is no land intuition. In addition, when the incoming call is an emergency, the driver may be impatient to try to go off-hook or try again as soon as possible, and there is a possibility that the driver cannot drive with a margin. Further, when it is necessary to contact the transmission partner as soon as possible, it is necessary to repeat the call again and again. In such a case, it is convenient if the route guidance device can guide to the nearest parking space without any operation by the driver.

  The present invention has been made to solve such a problem, and an object of the present invention is to automatically provide route guidance to the nearest parking space or the like for an incoming call while driving. .

In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that an incoming call detection means for detecting an incoming call from another information communication device by radio, and an incoming call from the other information communication device by the incoming call detection means. Upon detection, current position acquisition means for acquiring the current position, search means for searching for position information from the current position acquired by the current position acquisition means to a specific movement target, and the position searched by the search means Route guidance data generating means for generating route guidance data to the movement target based on the information and the current position information, and output means for outputting the route guidance data generated by the route guidance data generating means. Features.

The invention according to claim 2 is the navigation system according to claim 1,
When an incoming call is detected by the incoming call detection unit, a device information acquisition unit that acquires information about the other information communication device, a storage unit that stores device information acquired by the device information acquisition unit, and the current position is the specified Detecting means for detecting the proximity of the moving target, and detecting the current position approaching the specific moving target by the detecting means, the device information stored in the storage means is output. And an information output means.

  According to a third aspect of the present invention, the navigation system according to the second aspect further comprises communication means for performing communication with the other information communication device based on the information output by the information output means. It is characterized by.

  According to a fourth aspect of the present invention, in the navigation system according to any one of the first to third aspects, the specific movement target is a nearest parking facility.

  According to the fifth aspect of the present invention, an incoming call detecting step for detecting an incoming call from another information communication device by radio, and a current position is acquired when an incoming call from the other information communication device is detected in the incoming call detection step. Current position acquisition step, a search step for searching for position information from the current position acquired in the current position acquisition step to a specific movement target, the position information searched by the search step, and the current position information The route guidance data generating step for generating the route guidance data to the moving target based on the above, and the output step for outputting the route guidance data generated in the route guidance data generating step.

  According to the sixth aspect of the present invention, when the computer detects an incoming call from another information communication device by wirelessly, an incoming call detection unit for detecting an incoming call from the other information communication device is detected. Based on the current position acquisition means to be acquired, search means for searching position information from the current position acquired by the current position acquisition means to a specific movement target, the position information searched by the search means, and the current position information And functioning as route guidance data generating means for generating route guidance data up to the movement target and output means for outputting the route guidance data generated by the route guidance data generating means.

  According to the first, fifth, and sixth aspects of the invention, when an incoming call from another information communication device is detected wirelessly, the current position is acquired, and the position from the acquired current position to a specific movement target is acquired. Information is searched, and route guidance data to the moving target is generated and output based on the searched position information and the current position information. Therefore, if the user of the navigation device cannot respond to an incoming call for some reason (for example, when performing other work or operation that requires other concentration), a specific response may be By relying on voice guidance to the movement target, it is possible to move quickly to a place where communication with the sender can be performed safely.

  According to the invention of claim 2, in addition to the invention of claim 1, information on other information communication devices is acquired and stored when an incoming call is detected, and when the current position approaches the specific movement target, The stored device information is output. Therefore, after reaching a specific movement target, the contact information can be confirmed promptly.

  According to the invention described in claim 3, in addition to the invention described in claim 2, communication with other information communication devices is performed based on the output information. Therefore, for example, when the incoming call is an urgent contact, it is possible to immediately and easily contact the transmission partner.

  According to the invention described in claim 4, in addition to the invention described in any one of claims 1 to 3, navigation to the nearest parking facility can be received.

Next, the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing the overall configuration of a navigation system 1 to which the present invention is applied. The navigation system 1 includes a mobile phone 2 as a navigation device that performs route guidance to a movement target, a location information server 3 and a map information server 4 as guidance base stations that generate route guidance data to the movement target. These are connected to the public network 6 by wire or wireless. In the present embodiment, the guidance base station is divided into the location information server 3 and the map information server 4, but it is naturally possible to configure them integrally.
In addition, the mobile phone 2 has a hold response function that transmits a predetermined voice message or the like to the other party in response to an incoming call. In the present embodiment, as the hold response function, a so-called drive mode is applied in which a response is made with a voice message or the like indicating that the vehicle cannot be responded during driving.

  The mobile phone 2 is wirelessly connected to a public line network 6 composed of a PSTN (public telephone line network), ISDN (Integrated Services Digital Network), etc. via a base station (not shown), and others via a communication exchange server (not shown). Data communication such as voice and e-mail with the mobile phone. Moreover, it can be brought into the automobile 7 and used as a car navigation device. The mobile phone 2 receives the position signal transmitted from the satellite 8 applied to the GPS, GLONASS (Global Navigation Satellite System) or a combination thereof, and detects the latitude and longitude information of the current position. A route guidance request to the nearest parking space is transmitted to the position information server 3.

The location information server 3 identifies the current location of the mobile phone 2 based on the route guidance creation request for the parking space transmitted from the mobile phone 2 and the latitude and longitude information of the current location, and the map information based on the current location data A search request to the nearest parking space is transmitted to the server 4.
The map information server 4 receives the latitude and longitude information of the nearest parking space registered in advance in the database based on the route guidance creation request and the current position data of the nearest parking space transmitted from the location information server 3. Send to server 3. The location information server 3 receives the latitude and longitude information of the nearest parking space from the map information server 4, and receives the current location data of the mobile phone 2, the latitude and longitude information of the nearest parking space, and the mobile phone 2. Route guidance data is generated based on map data indicating the surrounding geography.

  The route guidance data includes the current position of the mobile phone 2, voice guidance data to the nearest parking space, character image data corresponding to this voice guidance, and map image data indicating the route to the surrounding map and the nearest parking space. Consists of. The location information server 3 transmits route guidance data to the mobile phone 2.

The mobile phone 2 receives the route guidance data transmitted from the location information server 3, outputs voice guidance, and displays character image data and map image data on the monitor.
The detailed configuration of each device will be described below.

  An example of a functional configuration of the mobile phone 2 is shown in the block diagram of FIG. The mobile phone 2 includes a control unit 10, ROM 11, RAM 12, GPS processing unit 14, GPS antenna 20, communication processing unit 13, communication antenna 21, memory 15, video processing unit 16, display unit 17, audio processing unit 18, The speaker 22 and the key input unit 19 are configured and are electrically and electronically connected by a system bus 25. The configuration of these functional units can be designed as appropriate. For example, the control unit 10, the communication processing unit 13, and the GPS processing unit 14 may be configured by the same processor, and the ROM 11 and the memory 15 are configured by the same memory. It may be configured.

  The control unit 10 is a microcomputer including a CPU and an MPU, and performs overall control of the mobile phone 2 according to a program. Processing corresponding to the application layer (layer 7) in the OSI reference model, that is, processing as a user interface in direct contact with the user is performed. Specifically, an application program stored in the ROM 11 is read based on an operation signal input from the key input unit 19, and processing according to the application program is executed. Thereafter, the processing result is output to the video processing unit 16 and the audio processing unit 18 to be displayed on the display unit 17 or to generate sound from the speaker 22.

  In the present embodiment, when receiving an incoming call or mail is detected while the drive mode is set, the automatic route guidance program is read from the ROM 11, the route guidance data received via the public line network 6 is received, and the speaker A route guidance message from 22 to the nearest parking space is generated. In addition, as an auxiliary guide, a character image in which the content of the voice guidance data is indicated by characters is mainly displayed on the display unit 17. In addition, a map image showing a route from the current position to the nearest parking space and a surrounding map can be displayed, and map image data is displayed for passengers in the passenger seat.

The ROM 11 includes a readable non-volatile memory. Stores various application programs such as operation programs and automatic route guidance programs.
The RAM 12 is used as a work RAM, and is a nonvolatile semiconductor memory (for example, a flash memory or an EEPROM (Electrically Erasable Programmable ROM).
Etc.). The memory 15 is composed of a small hard disk or a flash memory, and stores various data and programs.

  The GPS processing unit 14 receives signals transmitted from a plurality of GPS satellites (NAVSTAR) via the GPS antenna 20 based on the instruction signal from the control unit 10. From the signal, the latitude and longitude of the current value of the mobile phone 2 are calculated. Information on the calculated latitude and longitude is transmitted to the position information server 3 through the communication processing unit 13.

  The communication processing unit 13 communicates various data such as voice calls and mails with the radio base station on the public network 6 via the communication antenna 21. As a modulation / demodulation method of a radio signal, a PSK (Phase Shift Keying) method, a PDC (Personal Digital Cellular) method, a CDMA (Code Division Multiple Access) method, a GMS (Global System for Mobile communication) method, or the like can be used.

  The video processing unit 16 includes an image processing DSP and the like. The instruction signal from the control unit 10 indicates the content of the guidance or the message content to the transmission partner based on the map image data transmitted from the position information server 3 or the character code data stored in advance in the ROM 11 or the memory 15. The character image data is subjected to predetermined signal conversion processing and transmitted to the display unit 17. The display unit 17 is a small display composed of TFT elements and organic EL elements, and displays a character image or a map image transmitted from the video processing unit 16.

  The sound processing unit 18 includes a sound source IC such as a midi sound source. It is good also as a structure which is comprised integrally with the control part 10 and processed by software. Based on the instruction signal from the control unit 10, voice guidance data related to voice guidance among the route guidance data transmitted from the position information server 3 is converted into an analog voice signal and sent to the speaker 22. The speaker 22 utters voice from the sent analog voice signal. The voices to be uttered include route guidance (travel distance and travel direction), voice messages and mail messages transmitted to the other party.

  The key input unit 19 is a user interface that is directly operated by a driver (user of the mobile phone 2). On-hook, off-hook, dial keys, mode switching keys and various operation keys are provided. When the user operates (presses) the key, a predetermined signal is transmitted to the control unit 10. The ROM 11 stores a data table indicating a processing instruction signal corresponding to this signal, and the control unit 10 transmits a control signal corresponding to the signal instruction transmitted by each key operation while referring to this data table. . In the present embodiment, when the driver drives the vehicle, the mode is switched to the drive mode by operating a mode switching key or the like, and the automatic route guidance program is started.

  Next, the location information server 3 will be described. FIG. 3 shows an outline of the functional configuration of the location information server 3. The location information server 3 includes a location information server CPU 30, a system ROM 31, a map ROM 33, a route guidance data creation unit 32, and a transmission / reception unit 34.

  The position information server CPU 30 reads a program stored in the system ROM 31 and performs overall control of the position information server 3. In the present embodiment, the route guidance request signal including the search of the parking space or the like transmitted from the mobile phone 2 through the transmission / reception unit 34 via the public line network 6 and the latitude and longitude information indicating the current position of the mobile phone 2 are included. Based on this, the route guidance data to the nearest parking space is created and controlled.

  The map ROM 33 is, for example, a nonvolatile memory in which image data of road maps (including parking spaces and various landmarks) throughout Japan are stored in advance. The position information server CPU 30 reads the map image data and generates route guidance data for guiding the route to the nearest parking space in a route data synthesis process described later.

The route guidance data creation unit 32 generates route guidance data. A work RAM for generating route guidance data, a graphic memory, and the like are provided, and voice guidance data, character image data, and map image data are generated in accordance with an instruction from the position information server CPU 30.
When the position information server CPU 30 receives the latitude and longitude information indicating the current position transmitted from the mobile phone 2, the map information server 4 is parked at a certain distance (for example, 1 km) centered on the latitude and longitude information. A parking space position information search request for requesting a space search and the latitude and longitude information of the current position are transmitted to the map information server 4. Based on the search result (information on the latitude and longitude of the nearest parking space) responded to this parking position information search request, the surrounding map to the nearest parking space indicated by the current position of the mobile phone 2 and the search result Image data is read from the map ROM 33, and map image data as a composite image is generated. In addition, voice guidance data and character image data up to the target nearest parking space are generated.

  The transmission / reception unit 34 is an interface that is connected to the public line network 6 in a wired or wireless manner and performs data communication with the mobile phone 2 and the map information server 4. The position information server CPU 30 sends the generated route guidance data to the mobile phone 2.

  By the way, the mobile phone 2 is a moving body. Therefore, it is necessary to change the voice guidance or update the route map image data as the mobile phone 2 moves. Therefore, the mobile phone 2 transmits the route guidance data creation request and the changing latitude and longitude information of the current position to the position information server 3 at predetermined intervals. The location information server 3 sequentially repeats the above-described route guidance data generation process in response to this request, and sends out accurate route guidance data along with the movement of the mobile phone 2.

Next, the map information server 4 will be described. The functional configuration of the map information server 4 is shown in the block diagram of FIG. The map information server 4 is based on a map information server CPU 40 that performs overall control of the map information server 4, an operation program related to overall control of the map information server 4, and latitude and longitude information indicating the current position of the mobile phone 2. A system ROM 41 that stores a search application program for searching latitude and longitude information of a parking space, a parking space (for example, a convenience store or a pay parking lot), and a parking space DB (database) that stores the latitude and longitude data in association with each other. 42 and a public line network 6, and a transmission / reception unit 43 serving as an interface for transmitting / receiving data is provided.
Each parking space information recorded in parking space DB42 is registered by the application from the owner or operator of a parking space.

The map information server CPU 40 receives the parking space position information search request transmitted from the position information server 3 and within a predetermined radius centered on the latitude and longitude information indicating the current position of the mobile phone 2 received simultaneously ( For example, latitude and longitude information belonging to 1 km) is calculated by calculation, and a parking space having latitude and longitude information corresponding to the calculation result is extracted. When there are a plurality of corresponding parking spaces, the map information server CPU 40 transmits latitude information and longitude information of all the parking spaces to the position information server 3. When a plurality of parking spaces are extracted, information that sets the parking space closest to the coordinates of the mobile phone 2 as the first priority space is added to the header or the like and transmitted to the position information server 3.
In addition, when there are a plurality of parking spaces, it may be configured to transmit the latitude and longitude information of only the parking space closest to the latitude and longitude information indicating the current position of the mobile phone 2, but the parking space is full. In this case, it is conceivable that the distance is the closest in terms of coordinates, but the distance is far from the distance. Therefore, it is preferable to transmit all the information on the corresponding parking space.

The operation of the navigation system 1 having the above configuration will be described using the flowcharts shown in FIGS. 5 and 6 and the state displacement diagrams of the display unit 17 shown in FIGS.
It is assumed that a convenience store is searched as the nearest parking space.

  In step S101, when the key input unit 19 of the mobile phone 2 is operated by the driver, the control unit 10 reads data from the ROM 11, and displays it on the display unit 17 via the video processing unit 16 as shown in FIG. A mode setting guidance screen as shown is displayed. The display unit 17 displays two types of drive modes, “drive mode: normal” and “drive mode: linked to the nearest parking lot navigation”, but “drive mode: normal” is a conventional drive. Similar to the mode, this mode automatically responds to the other party of the transmission, such as being in operation when receiving an incoming call. If automatic route guidance is desired, the cursor 50 is moved to “drive mode: nearest parking lot navigation interlocking” to make a selection. The control unit 10 performs mode setting and displays a setting completion guide as shown in FIG.

  In step S102, the control unit 10 waits for an incoming voice call or incoming mail. That is, the communication processing unit 13 detects an incoming signal via the communication antenna 21 and waits until an incoming signal transmitted to the control unit 10 is detected. When the control unit 10 detects an incoming call (step S102: YES), the process proceeds to step S103. When an incoming call is detected in step S102, the telephone number of the transmission partner is stored in the memory 15. This is because it is used during the automatic call processing in step S124. Details will be described later.

In step S103, when the control unit 10 detects an incoming call, the incoming call tone data is transmitted to the voice processing unit 18, and the ringtone is uttered from the speaker 22 for several seconds (about 1 to 3 seconds). The driver can recognize the presence of an incoming call by hearing. After that, the control unit 10 performs off-hook control, reads the response message data recorded in the ROM 11, transmits it to the communication processing unit 13 and makes a return call after moving to the nearest parking space and indicating that it is driving. Send a response message to correct it. At this time, the control unit 10 transmits similar message data to the voice processing unit 18 and utters the voice from the speaker 22. Further, an image as shown in FIGS. 8A and 8B is displayed on the display unit 17. The driver can confirm the progress of the automatic response by the voice that is uttered. Furthermore, while the user is driving, the screen of the display unit 17 cannot be directly seen, but the mobile phone 2 recognizes that the mobile phone 2 is automatically responding due to the movement of the display unit 17 or a change in the amount of light that is faintly captured at one corner of the field of view. can do.
When the incoming call is an electronic mail, the control unit 10 reads response mail text data indicating that the drive is being performed from the ROM 11 and returns a response through the communication processing unit 13 as in the case of the voice incoming call. At this time, as in the case of voice incoming, the content of the response mail text is output as voice and an image as shown in FIGS. 8C and 8D is displayed on the display unit 17.

  In step S <b> 104, the control unit 10 performs a process of acquiring information on the current position of the mobile phone 2, that is, latitude and longitude information. Specifically, the GPS signal is received via the GPS antenna 20, and the latitude and longitude information of the current position is calculated by calculation.

  In step S <b> 105, the control unit 10 transmits the latitude and longitude information calculated in step S <b> 104 and the route guidance creation request to the communication processing unit 13, performs predetermined modulation processing, and transmits to the position information server 3. At this time, a voice message indicating that the nearest parking space is being searched is output through the voice processing unit 18 and an image as shown in FIG. 9A is displayed on the display unit 17.

In step S106, when the location information server CPU 30 receives the route guidance data creation request and the latitude and longitude information of the mobile phone 2 through the transmitter / receiver 34, the program reads the program from the system ROM 31 in step S107, and performs route guidance data creation processing. Start.
In step S <b> 108, the location information server 3 transmits latitude and longitude data indicating the current location of the mobile phone 2 to the map information server 4 together with the parking space route guidance creation request.

  When the map information server CPU 40 receives the parking space route guidance creation request and the latitude and longitude information of the mobile phone 2 in step S109, it accesses the parking space DB 42 and based on the latitude and longitude information of the mobile phone 2, the nearby parking space Search for. Specifically, the latitude and longitude values belonging to a predetermined radius (for example, 1 km) centered on the latitude and longitude information of the mobile phone 2 are calculated, and parking corresponding to the coordinates belonging to the latitude and longitude obtained by this calculation is calculated. Extract space. Further, when there are a plurality of corresponding parking spaces, additional information indicating that the parking space is the closest to the parking space having the latitude and longitude information that is closest to the latitude and longitude information of the mobile phone 2 is included as data, for example. To the header part.

  In step S110, the map information server CPU 40 transmits the latitude and longitude information of the parking space extracted in step S109 to the position information server 3. If there are a plurality of parking spaces extracted in step S109, the latitude and longitude information of all the parking spaces is transmitted to the position information server 3.

In step S <b> 111, when the position information server CPU 30 receives the latitude and longitude information of the parking space, it reads out map data including at least a radius of 1 km centered on the latitude and longitude of the mobile phone 2 from the map ROM 33. Thereafter, a control signal is transmitted to the route guidance data creation unit 32, and the latitude and longitude information of the mobile phone 2, the latitude and longitude information of the nearest parking space transmitted from the map information server 4, the map data described above, To generate map image data as shown in FIG. Also, based on the map image data synthesized at this time, the shortest path to the parking space (in this example, a convenience store) as the current position of the mobile phone 2 and the destination is calculated by calculation, and the calculation result is A line image of the guide arrow along the traveling route is further synthesized. In FIG. 10, the current position of the mobile phone 2 is indicated by a triangle drawn in a circle.
Further, the position information server CPU 30 creates voice guidance data up to the convenience store according to a predetermined rule. That is, guidance voice data indicating the distance that the mobile phone 2 goes straight from the current location, the direction of the turn, the distance that goes straight after turning, and the like are generated. Also, character image data indicating the contents of the voice guidance data is generated.

  Thereafter, in step S112, the position information server CPU 30 transmits the route guidance data generated in step S111 to the mobile phone 2 through the transmission / reception unit. In step S113, the control unit 10 of the mobile phone 2 receives route guidance data.

After receiving the route guidance data in step S113, in step S114, the control unit 10 displays route guidance voice guidance and a character image indicating the content. That is, of the route guidance data received in step S113, the sampling data of the voice guidance data is transmitted to the voice processing unit 18, the character image data is transmitted to the video processing unit 16, and predetermined processing is performed on each data to output the voice. And display a character image. As guidance of voice and character images, as shown in FIG. 9B, the end of search and the fact that there is a parking space are notified. After that, as shown in FIG. 9C, it is notified that the parking space is a convenience store and that the mobile phone 2 is confirmed to be in the traveling direction.
Furthermore, as shown in FIGS. 9D and 9E, the direction and distance of travel are uttered and displayed, and information to be recognized by the driver at the time of following the target route is conveyed.

In step S115, the control unit 10 acquires the latitude and longitude information of the current position of the mobile phone 2 through the GPS antenna 20 and the GPS processing unit 14 again at predetermined time intervals. Thereafter, the latitude and longitude information of the current position is transmitted to the position information server 3 in step S116.
In step S117, the location information server 3 acquires latitude and longitude information after the mobile phone 2 has moved. In step S118, as in step S108 described above, the location information server CPU 30 transmits to the map information server 4 the latitude and longitude information after movement of the mobile phone together with a search request for parking space location information. In step S119, the map information server CPU 40 transmits the parking space information to the position information server 3.

In step S120, the position information server CPU 30 that has received the parking space information from the map information server 4 determines the distance between the latitude and longitude information after the movement of the mobile phone 2 acquired in step S117 and the latitude and longitude information of the parking space. Determine if they are approaching or matched.
If it is not approaching or does not match (step S120: NO), it means that it has not yet arrived at the destination, so the process returns to step S111 to generate route guidance data.
On the other hand, if they match (step S120: YES), the process proceeds to step S121.

  In step S121, the position information server CPU 30 transmits an instruction signal to the route guidance data creating unit 32 to generate arrival guidance data (including voice data and character image data). Further, in step S121, the position information server CPU 30 also generates call selection data for asking the driver whether or not to make a call to the transmission partner that has arrived in step S102. Thereafter, the location information server CPU 30 transmits arrival guidance data and call selection data to the mobile phone 2 in step S122.

  In step S123, the control unit 10 that has received the arrival guidance data outputs the voice data to the voice processing unit 18 and outputs voice guidance indicating that the destination has been reached. Also, the character image data is transmitted to the video processing unit 16 and an arrival guidance screen as shown in FIG. 9 (f) is displayed.

  In step S123, the control unit 10 displays voice guidance for selecting whether to call the transmission partner based on the call selection data and a character image as shown in FIG. Thereafter, in step S124, when the driver operates the key input unit 19 to select a process for making a call to the transmission partner (select “Yes” in FIG. 9G) (step S124: YES), the control unit 10 Reads the incoming call history data stored in the memory 15 and performs a process of automatically making a call. If the driver selects a process that does not call the transmission partner (selects “No” in FIG. 9G), the process ends.

As described above, according to the route guidance device to which the present invention is applied,
When an incoming call is detected when the drive mode of the mobile phone 2 equipped with the navigation function is set, the nearest parking space can be automatically searched for route guidance. As a result, the driver can quickly move to the parking space where the driver can safely communicate with the sender, relying on voice guidance to the parking space, and transmitted after the vehicle is parked (stopped). You can contact the other party. In addition, the cause of operating a mobile phone or the like during driving is reduced, which helps to prevent calls and mail transmission while driving.

  In addition, if the vehicle is stopped on the road shoulder in order to respond to an incoming call, there is a possibility that it may cause an obstacle to the following vehicle or cause a traffic jam. However, according to the navigation device in this embodiment, it does not cause trouble for others. The sender can be contacted safely and quickly.

  In addition, the telephone number of the transmission partner is stored in the memory 15, and communication with the transmission partner is automatically started when it arrives at the nearest parking space. Therefore, it is possible to easily communicate without special operation. . In addition, as a reflection effect, it encourages the driver that he / she can not contact unless he / she reaches the parking space, prevents calls and e-mails while driving, parks on the road (shoulder) It helps to reduce the number of stops.

  Further, when the communication with the transmission partner is terminated after moving to the nearest parking lot, navigation can be performed to return to the place where the incoming call is detected, that is, the original place. If you move based on navigation in an unfamiliar land, you may not know the route back to the original location. Even in such a case, the present invention is effective.

  Although the best mode for carrying out the present invention has been described, the present invention is not limited to the various examples described above. In this embodiment, it is configured to perform navigation to the nearest parking space in response to an incoming call when the drive mode is set. For example, in a large facility such as a baseball field, there may be a case where a voice call cannot be performed due to the cheering of the audience. . Therefore, a manner mode (including a vibration function) is set, and position information of a relatively quiet place of this large facility is registered in the parking space DB 42 of the map information server 4. When an incoming call is detected, the shortest distance (the nearest exit or route) to a relatively quiet location is navigated. In this way, various configurations linked with the hold function can be considered.

1 is a schematic diagram showing an overall configuration of a navigation system in the best mode for carrying out the present invention. It is the schematic diagram which showed the function structure of the mobile telephone shown in FIG. It is the schematic diagram which showed the function structure of the position information server shown in FIG. It is the schematic diagram which showed the function structure of the map information server shown in FIG. It is the flowchart which showed the process sequence of the navigation system shown in FIG. It is the flowchart which showed the process sequence of the navigation system shown in FIG. FIGS. 7A and 7B are schematic views showing an example of a display screen displayed when mode setting is performed with the mobile phone shown in FIG. FIGS. 8A and 8B are schematic diagrams showing screens displayed when the mobile phone receives an incoming voice call. FIGS. 8C and 8D are schematic views showing an example of a screen displayed when the mobile phone receives an incoming e-mail. FIGS. 9A to 9G are schematic diagrams showing an example of state displacement of a character image displayed on the display screen during processing of the mobile phone shown in FIG. It is the schematic diagram which showed an example of the map image displayed on the display screen of the mobile telephone shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car navigation system 2 Mobile phone 3 Location information server 4 Map information server 6 Public line network 7 Car 8 Satellite 10 Controller 11 ROM
12 RAM
13 Communication Processing Unit 14 GPS Processing Unit 15 Memory 16 Video Processing Unit 17 Display Unit 18 Audio Processing Unit 19 Key Input Unit 20 GPS Antenna 21 Communication Antenna 22 Speaker 30 Position Information Server CPU
31 System ROM
32 Route Guidance Data Creation Unit 33 Map ROM
34 Transceiver 40 CPU for map information server
41 System ROM
42 Parking space DB
43 Transceiver

Claims (6)

Incoming call detection means for detecting incoming calls from other information communication devices by radio;
When detecting an incoming call from the other information communication device by the incoming call detection means, a current position acquisition means for acquiring a current position;
Search means for searching position information from the current position acquired by the current position acquisition means to a specific movement target;
Route guidance data generating means for generating route guidance data to the movement target based on the position information searched by the search means and the current position information;
A navigation system comprising: output means for outputting the route guidance data generated by the route guidance data generation means. Device information acquisition means for acquiring information relating to the other information communication device upon detection of an incoming call by the incoming call detection means;
Storage means for storing the device information acquired by the device information acquisition means;
Detecting means for detecting that the current position is close to the vicinity of the specific moving target;
When the detection means detects that the current position is close to the vicinity of the specific movement target, an information output means for outputting device information stored in the storage means;
The navigation system according to claim 1, further comprising:   The navigation system according to claim 2, further comprising a communication unit that communicates with the other information communication device based on the information output by the information output unit.   The navigation system according to claim 1, wherein the specific movement target is a nearest parking facility. An incoming call detection step for detecting incoming calls from other information communication devices by radio;
Upon detecting an incoming call from the other information communication device in this incoming call detection step, a current position acquisition step for acquiring a current position;
A search step for searching for position information from the current position acquired in the current position acquisition step to a specific movement target;
A route guidance data generation step for generating route guidance data to the movement target based on the position information searched by the search step and the current position information;
An output step for outputting the route guidance data generated in the route guidance data generation step;
A navigation method characterized by comprising: Computer
Incoming call detection means for detecting incoming calls from other information communication devices by radio,
A current position acquisition means for acquiring a current position when an incoming call from the other information communication device is detected by the incoming call detection means;
Search means for searching position information from the current position acquired by the current position acquisition means to a specific movement target;
Route guidance data generating means for generating route guidance data to the movement target based on the position information searched by the search means and the current position information;
Output means for outputting the route guidance data generated by the route guidance data generating means;
Navigation program to function as.

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