JP4974740B2 - Navigation device and point information presentation method - Google Patents

Description

  The present invention relates to a technique for presenting information about points around a current position to a user in a navigation device mounted on an automobile.

In a navigation device mounted on a car, as a technique for presenting information about points around the current location to the user, guidance information for each tourist spot is stored in a storage device in advance, and tourist spots around the current location of the car Is known from a storage device and presented to a user (for example, Patent Document 1).
JP 2001-183153 A

  According to the technique described in Patent Document 1, since the same guidance information is always presented for one tourist spot, for the user who repeatedly passes around the same tourist spot, the guidance information presented for the tourist spot is distorted. There was a problem that it became a thing lacking in an interesting taste.

  Then, this invention makes it a subject to show a user the information regarding the point around the present position so that the presentation of the said information may not turn.

  In order to achieve the above object, the present invention provides an article representing the contents of a corresponding event, provided for each of a plurality of events, in a navigation device that presents information about points around the current position, and corresponding A topic database storing topic data in which dates related to the events to be performed and points related to the corresponding events are registered, current position calculation means for calculating the current position, and calculated by the current position calculation means Topic data acquisition means for acquiring topic data in which a point around the current position and a date having a date matching or close to the current date are registered from the topic database, and the topic data And point-related information presenting means for presenting articles registered in the topic data obtained by the obtaining means to the user. .

  Further, in order to achieve the above object, the present invention provides an article representing the contents of a corresponding event, provided for each of a plurality of events, in a navigation device that presents information about points around the current position. , A communication means for connecting via wireless communication to a topic database storing topic data in which the date related to the corresponding event and the point related to the corresponding event are registered, and the current position for calculating the current position Topic data in which a calculation means, a point around the current position calculated by the current position calculation means, and a date having a date that matches or is close to the current date Means for acquiring topic data from the topic database and the topic data acquired by the topic data acquiring means. The is that a point-related information presenting means for presenting to the user.

  Further, in order to achieve the above object, the present invention provides an article representing the contents of a corresponding event, provided for each of a plurality of events, in a navigation device that presents information about points around the current position. , A communication means for connecting via wireless communication to a topic database storing topic data in which the date related to the corresponding event and the point related to the corresponding event are registered, and the current position for calculating the current position The calculation means, the route guidance means for setting the recommended route to the destination and guiding the set recommended route to the user, the memory, and the route guidance means are set when the route recommendation means sets the recommended route. The topic data in which the points around the recommended route and the date having the date close to or close to the current date are registered via the communication means. , A topic data advance acquisition unit that is acquired from the topic database and stored in the memory, a point around the current position calculated by the current position calculation unit, and a date that matches or is close to the date of the current date Topic data acquisition means for acquiring the topic data registered with the date having the date from the memory, and the point related to presenting the article registered in the topic data acquired by the topic data acquisition means to the user Information presenting means.

  According to these navigation devices, in the navigation device that presents information related to a point around the current position, an article about an event related to the point and the current date is presented as information about the point. The information presented in is different from month to day. Therefore, meaningful information can be presented to a user who repeatedly passes around the point, with no twisting about the point.

  In addition, according to the navigation device provided with the topic data advance acquisition means, when acquiring topic data from the topic database via the communication means, while traveling according to the recommended route, Articles related to the current month and day can be promptly presented.

  Here, each of the navigation devices described above further displays a guidance map representing the current position calculated by the current position calculating unit on the map around the current position calculated by the current position calculating unit. Providing a guide map display means, and the point related information presentation means puts the article registered in the acquired topic data at a position corresponding to the spot registered in the acquired topic data on the guide map. You may comprise so that it may display on the said guidance map in the linked | related form. Alternatively, each of the navigation devices described above may be configured to output a voice for reading an article registered in the acquired topic data in the point related information presenting means.

  As described above, according to the present invention, it is possible to present information regarding points around the current position to the user so that the presentation of the information is not distorted.

Hereinafter, embodiments of the present invention will be described.
In FIG. 1, the structure of the point information provision system which concerns on this embodiment is shown.
As shown in the figure, the point information providing system includes an in-vehicle system 100 mounted on each vehicle, and a point topic data server 30 that the in-vehicle system 100 can access via the WAN 20.
Then, the spot topic data server 30 is a spot topic database 31 that stores spot topic data provided for each spot, and a spot that is stored in the spot topic database 31 in response to a request from the in-vehicle system 100 via the WAN 20. A point topic data providing unit 32 for providing topic data.

Next, the in-vehicle system 100 includes a navigation device 1, an operation unit 2, a display device 3, a vehicle state sensor 4, a GPS receiver 5, a wireless communication device 6 that performs communication via the WAN 20, and a speaker 7. And.
The navigation device 1 includes a map data storage unit 11, which is a storage device such as an HDD, a current state calculation unit 12, a route search unit 13, a guidance image generation unit 14, a control unit 15, a memory 16, The audio output unit 17 and a GUI control unit 18 that processes input / output between the user using the operation unit 2 and the display device 3 and each part of the in-vehicle system are configured.

Here, the vehicle state sensor 4 is a sensor group that detects various vehicle states such as an azimuth sensor such as an angular acceleration sensor or a geomagnetic sensor, or a vehicle speed sensor such as a vehicle speed pulse sensor.
However, a part of the above-described in-vehicle system 100 is configured as a CPU circuit having a general configuration including peripheral devices such as a microprocessor, a memory, and other graphic processors and geometric processors in terms of hardware. In this case, each unit as the CPU circuit is realized as a process realized by executing a program prepared in advance by the microprocessor. In this case, such a program may be provided to the CPU circuit via a recording medium or an appropriate communication path.

Next, as shown in FIG. 2, the map data storage unit 11 stores map data representing a map and point topic information.
The point topic information includes point topic data provided corresponding to each of a plurality of points such as a sightseeing spot or a main facility previously selected as a point estimated to be of interest to the user. Each point topic data includes a point identifier uniquely given to the corresponding point, a point coordinate indicating the longitude and latitude coordinates of the corresponding point, a point type indicating the type of the corresponding point such as a restaurant or a theme park, A point topic table that collects topics related to a point name, a point address indicating the address of the corresponding point, a telephone number of the corresponding point, and a corresponding point is stored.

  In the location topic table, topic records provided for each event related to the corresponding location are registered, and each topic record represents the date when the corresponding event occurred or occurred. The topic date, the topic related theme representing the related category of the corresponding event, and the topic content which is an article representing the content of the corresponding event are registered.

  Next, in the point topic database 31 of the point topic data server 30, points provided corresponding to each of a plurality of points such as sightseeing spots and main facilities previously selected as points estimated to be of interest to the user Stores topic data. The configuration of the spot topic data stored in the spot topic database 31 is the same as the spot topic data stored in the map data storage unit 11 of the navigation device 1 shown in FIG. However, the contents of the spot topic table of the spot topic data stored in the spot topic database 31 corresponding to the same spot and the spot topic table of the spot topic data stored in the map data storage unit 11 of the navigation device 1 are different. It may be. More specifically, the location topic table of the location topic data stored in the location topic database 31 corresponds to the location topic table of the location topic data in the map data storage unit 11 of the navigation device 1 due to data capacity restrictions or the like. A topic record corresponding to an event for which a topic record could not be registered may also be registered. Moreover, you may make it store the point topic data about the point where point topic data is not stored in the map data storage part 11 of the navigation apparatus 1 in the point topic database 31.

Now, in such a configuration, the current state calculation unit 12 of the in-vehicle system 100 repeatedly performs the following processing.
That is, the current state calculation unit 12 performs a map matching process with the map indicated by the map data read from the map data storage unit 11 with respect to the current position estimated from the outputs of the vehicle state sensor 4 and the GPS receiver 5. Then, the most probable coordinates as the current position and the most probable direction as the current traveling direction are determined as the current position and the current traveling direction, respectively, and are set in the memory 16.

  The control unit 15 receives a destination setting from the user via the operation unit 2 and the GUI control unit 18 in response to a user destination setting request, and sets the destination setting in the memory 16. Then, when receiving the destination setting, the control unit 15 causes the route search unit 13 to search for a recommended route to the destination. The route search unit 13 reads out map data in the necessary geographical range from the map data storage unit 11, and sets a minimum cost route from the current position to the destination set in the memory 16 to a predetermined cost model such as a minimum distance. As a recommended route, the route data of the calculated recommended route is set in the memory 16.

In addition, when the current position set in the memory 16 becomes near the destination, the control unit 15 determines that the destination has arrived, and also performs a process of clearing the destination and the recommended route set in the memory 16. .
Further, the control unit 15 uses the current position set in the memory 16 as a reference point, and calculates a map display range that is a range for displaying a map according to the reference point and a map display scale set at that time. To do. Then, the guide image generation unit 14 draws the map image of the map display range calculated by the control unit 15 based on the map data stored in the map data storage unit 11. Further, a guide image in which a graphic representing the current position, recommended route, and destination set in the memory 16 is drawn on the drawn map image is generated and displayed on the display device 3 via the GUI control unit 18.

  FIG. 3 shows an example of a guide image displayed on the display device 3 in this way. The guide image is displayed on a map image 301 around the current position, a current position mark 302 representing the current position, a map A route graphic 303 representing the recommended route within the display range and a destination mark 304 representing the destination are shown.

The control unit 15 also performs processing for displaying the time information 310 representing the current date and time on the guide image displayed in this way.
Now, in such a configuration, the in-vehicle system 100 performs a spot topic acquisition process and a spot topic display process in order to present information related to a spot around the current position to the user.
First, the point topic acquisition process will be described.
FIG. 4a shows the procedure of the point topic acquisition process.
As shown in the figure, in this point topic acquisition process, if a recommended route is newly set in the memory 16 by the route search unit 13 (step 402), a point topic data request including the position coordinate information of the recommended route is wirelessly communicated. It transmits to the point topic data server 30 via the device 6 and the WAN 20 (step 404). Then, as a response to the point topic data request, the point topic data received from the point topic data server 30 is stored in the memory 16 (step 406), and the process returns to step 402 to wait for setting of the next recommended route.

Here, when the location topic data providing unit 32 of the location topic data server 30 receives the location topic data request from the navigation device 1, the location topic data providing unit 32 refers to the position coordinate information of the recommended route included in the location topic data request and The location topic data in which the location coordinates are registered is acquired from the location topic database 31. The topic topic table includes a topic record in which the date of the topic having the target month / day as the month / day is registered from the acquired topic topic data, with the date within n days before and after today as the target month / day. Extract point topic data. That is, for example, when n is 1, if today is March 3, 2006, yesterday, today, tomorrow ’s month, March 2, March 3, March 4, Regardless of the year, the topic record in which the topic date is one of March 2, March 3, or March 4 is registered in the location topic table. Extract point topic data.
Then, the topic record in which the topic date having the date other than the target date is registered is deleted from the location topic table of the extracted location topic data. And the point topic data which deleted the topic record in which the topic date having the date other than the target date is deleted is transmitted to the navigation device 1 of the point topic data request transmission source as a response to the point topic data request. .

  Now, according to such point topic acquisition processing, when the recommended route is set as shown by the route graphic 303 in FIG. 3, for example, the target date of the point 320 along the recommended route is set as the topic date. The point topic data including the topic record as the month and day is automatically acquired from the point topic data server 30 and stored in the memory 16.

Next, point topic display processing will be described.
FIG. 4b shows the procedure of the point topic display process.
As shown in the figure, in the point topic display process, the current position is acquired from the memory 16 (step 452), and the point topic data in which the point coordinates around the current position are registered is the point topic information and the memory 16 in the map data storage unit 11. (Step 454). Then, select the topic records in which the topic date is registered one by one from the acquired topic data for each point within the n days before and after today. (Step 456). It should be noted that no topic record is selected for point topic data for which there is no topic record in which the topic date having the target month and date is registered.

  In step 456, when a plurality of topic records in which topic date having the target month and day is registered in one point topic data are registered, one topic is obtained as follows. Select a record. In other words, if a topic record is registered that has a topic date that has today's month and day as the month, the topic record that has the topic date that has today's month and day as the month and day is registered. One topic record is selected at random. If the topic record that contains the date of the topic that has today's date is registered, the topic that has the date of topic that has the date closest to today's date is registered. One topic record is randomly selected from the records.

  Now, if a topic record is selected in this way, the topic display shows the content of the selected topic record (the date and time represented by the topic date, the article represented by the topic content, etc.) placed on the guide image. It is displayed in the box (step 458). Here, the topic display box is a balloon from the position at a position on the guide image corresponding to the point coordinates of the point topic data where the topic record for displaying the content in the topic display box is registered. In association with each other, for example, in the form of

Then, after waiting for the change of the map display range that defines the range of the map image 301 included in the above-described guide image (step 460), each topic display box is deleted (step 462), and the process returns to step 452. .
The point topic display process has been described above.
Here, FIG. 5 shows a processing example of such point topic display processing.
Now, the point topic data corresponding to the point 500 in FIG. 5a shown in FIG. 5b is stored in the point topic information in the memory 16 or the map data storage unit 11, and in the point topic table of this point topic data, FIG. As shown in FIG. 5, a topic record in which October 26, 1998 is registered as a topic date, and as shown in FIG. 5c2, a topic record in which November 18, 1934 is registered as a topic date are stored. It is assumed that

  In this case, when traveling near this point 500 on October 26, 2006, a topic display box 600 is arranged on the guidance image in the form of a balloon from the point 500 as shown in FIG. Contents of the topic record in FIG. 5c1 in which October 26, 1998, which has the same date (October 26) as today (October 26, 2006), is registered in the display box 600 as the topic date. Is displayed.

At this time, the display when the recommended route is set is, for example, as shown in FIG. 6a2.
On the other hand, when traveling near this point 500 on November 18, 2006, a topic display box 600 is arranged on the guidance image in the form of a balloon from the point 500 as shown in FIG. In the box 600, the content of the topic record in FIG. 5c2 in which November 18, 1934 having the same date (November 18) as today (November 18, 2006) is registered as the topic date. Is displayed.

At this time, the display when the recommended route is set is as shown in FIG. 6b2, for example.
As described above, according to the above-described point topic display processing, since the article related to the current point and the current day is presented as information related to the point around the current position, the point is presented to the user. The information is different for each month and day, so that meaningful information can be presented to a user who repeatedly passes around the point, with no twisting about the point.

  The point topic display processing as described above is performed in step 458 together with the display of the topic display box 600 or in place of the display of the topic display box 600 for the topic registered in the topic record selected in step 456. A process may be used in which the voice that is read out is generated by the voice output unit 17 and output from the speaker 7.

  In the above embodiment, the control unit 15 sets a theme specified in advance by the user in the memory 16 as a user setting theme, and performs the above-described point topic display processing in step 456. From the topic data, select topic records in which the topic date with the target date is registered and the same theme as the user setting theme set in the memory 16 is registered in the topic related theme. You may make it set it as the process to perform. By doing in this way, only the topic relevant to the theme in which a user is interested can be shown to a user.

  In the above embodiment, if the recommended route is not set in step 454 of the point topic display process, a point topic data request including the coordinate information of the current position is sent via the wireless communication device 6 and the WAN 20. The point topic data in which the point coordinates around the current position are registered after the point topic data transmitted to the point topic data server 30 and received from the point topic data server 30 as a response to the point topic data server 30 is stored in the memory 16. May be acquired from the point topic information in the map data storage unit 11 and the memory 16.

  Alternatively, the location topic data request including the coordinate information of the current position is always made via the wireless communication device 6 and the WAN 20 in step 454 of the location topic display processing without performing the location topic acquisition processing. In response to the request for the point topic data, the point topic data received from the point topic data server 30 is stored in the memory 16, and the point topic data in which the point coordinates around the current position are registered is stored as map data. You may make it acquire from the point topic information of the part 11, and the memory 16. FIG.

  However, in these cases, when receiving the location topic data request from the navigation device 1, the location topic data providing unit 32 of the location topic data server 30 refers to the coordinate information of the current location included in the location topic data request, and Point topic data in which peripheral point coordinates are registered is acquired from the point topic database 31. A topic record in which the topic date is registered as the target month / day within n days before and after today's month and the topic date is registered as the month / day from the acquired topic data. The point topic data included in the topic table is extracted. Then, from the location topic table of the extracted location topic data, delete the topic record in which the topic date having the date other than the target date is registered, and the topic date having the date other than the target date will be The point topic data from which the registered topic record has been deleted is transmitted as a response to the point topic data request to the navigation device 1 that is the point topic data request transmission source.

  Further, the above embodiment is configured to use only one of the spot topic data of the spot topic data server 30 and the spot topic data stored in the spot topic information of the map data storage unit 11 of the in-vehicle system 100. May be.

It is a block diagram which shows the structure of the vehicle-mounted system which concerns on embodiment of this invention. It is a figure which shows the map data and point topic information which the vehicle-mounted system which concerns on embodiment of this invention hold | maintains. It is a figure which shows the example of a display of the vehicle-mounted system which concerns on embodiment of this invention. It is a flowchart which shows the spot topic acquisition process and spot topic display process which the vehicle-mounted system which concerns on embodiment of this invention performs. It is a figure which shows the operation example of the vehicle-mounted system which concerns on embodiment of this invention. It is a figure which shows the example of a display of the vehicle-mounted system which concerns on embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Navigation apparatus, 2 ... Operation part, 3 ... Display apparatus, 4 ... Vehicle state sensor, 5 ... GPS receiver, 6 ... Wireless communication apparatus, 7 ... Speaker, 11 ... Map data storage part, 12 ... Current state calculation part DESCRIPTION OF SYMBOLS 13 ... Route search part 14 ... Guide image generation part 15 ... Control part 16 ... Memory 17 ... Audio | voice output part 18 ... GUI control part 100 ... In-vehicle system 20 ... WAN 30 ... Point topic data server , 31 ... point topic database, 32 ... point topic data providing unit.

Claims (6)

A navigation device that presents information about points around the current position,
Topic data registered for each of a plurality of events, each of which indicates the content of the corresponding event, the date related to the corresponding event, and the points related to the corresponding event are registered. A stored topic database;
Current position calculating means for calculating the current position;
A topic for acquiring topic data in which the points around the current position calculated by the current position calculating means and the date having the date matching or close to the date of the current date are registered from the topic database Data acquisition means;
Possess a point related information presenting means for presenting articles in which the topic data acquisition unit is registered in the topic data acquired to the user,
The date having the same date as or similar to the current date is the date having the date matching or close to the current date regardless of the year. A navigation device characterized by that. A navigation device that presents information about points around the current position,
Topic data registered for each of a plurality of events, each of which indicates the content of the corresponding event, the date related to the corresponding event, and the points related to the corresponding event are registered. A communication means for connecting to the stored topic database via wireless communication;
Current position calculating means for calculating the current position;
Topic data in which the points around the current position calculated by the current position calculation means and the date having the date close to or close to the current date are registered via the communication means. Topic data acquisition means for acquiring from the topic database;
Possess a point related information presenting means for presenting articles in which the topic data acquisition unit is registered in the topic data acquired to the user,
The date having the same date as or similar to the current date is the date having the date matching or close to the current date regardless of the year. A navigation device characterized by that. A navigation device that presents information about points around the current position,
Topic data registered for each of a plurality of events, each of which indicates the content of the corresponding event, the date related to the corresponding event, and the points related to the corresponding event are registered. A communication means for connecting to the stored topic database via wireless communication;
Current position calculating means for calculating the current position;
A route guidance means for setting a recommended route to the destination and guiding the set recommended route to the user;
Memory,
When the route guidance means sets the recommended route, a point around the set recommended route and a date that has a date matching or close to the current date Topic data preceding acquisition means for acquiring topic data from the topic database via the communication means and storing it in the memory;
A topic for acquiring from the memory topic data in which a point around the current position calculated by the current position calculation means and a date that has a date matching or close to the current date is registered from the memory. Data acquisition means;
Possess a point related information presenting means for presenting articles in which the topic data acquisition unit is registered in the topic data acquired to the user,
The date having the same date as or similar to the current date is the date having the date matching or close to the current date regardless of the year. A navigation device characterized by that. The navigation device according to claim 1, 2, or 3,
On the map around the current position calculated by the current position calculation means, there is a guide map display means for displaying a guide map representing the current position calculated by the current position calculation means,
The point-related information presenting means associates the article registered in the acquired topic data with the position corresponding to the point registered in the acquired topic data on the guide map in the form of the guide map. A navigation device characterized by being displayed above. The navigation device according to claim 1, 2, or 3,
The navigation apparatus according to claim 1, wherein the point-related information presenting means outputs a voice for reading an article registered in the acquired topic data. A point information presentation method for presenting information about points around the current position in a navigation device,
Calculating the current position;
Topic data registered for each of a plurality of events, each of which indicates the content of the corresponding event, the date related to the corresponding event, and the points related to the corresponding event are registered. Obtaining from the stored topic database the topic data in which the points around the calculated current position and the date with the date matching or close to the date of the current date are registered;
Have a and the step of presenting the articles that have been registered in the acquired topic data to the user,
The date having the same date as or similar to the current date is the date having the date matching or close to the current date regardless of the year. Point information presentation method characterized by