JP2015068666A - Navigation system and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a "navigation system and a computer program" capable of easily selecting a place at a discretionary location that was set at a destination in the past.SOLUTION: A place set at a destination is registered in a destination history table. When a search for destination history is instructed, a destination history map showing a current position 601 and all places 602 registered in the destination history table is displayed on a map 600 centered on the current position and including all places registered in the destination history table. A window 720 showing a place name 721 of a subject place which is a place near a position 701 designated by a user on the destination history map is displayed, and the setting of the subject place to the destination is accepted by a "Set Destination" button 722 provided on the window 720.

Description

  The present invention relates to a technique for assisting a user in selecting a desired point from points set as destinations in the past in a navigation system that provides route guidance to a point set as a destination.

  In a navigation system that provides route guidance to a point set as a destination in the navigation system, as a technology for supporting the user's selection of a desired point from points set as a destination in the past, Is stored as a destination history, and when a destination history search is instructed by the user, the points stored as the destination history are set in the order close to the current position or the destination. There is known a technique for displaying a list arranged in order of the date and time and setting a point selected in the list as a destination.

JP 2012-013428 A

  When displaying a list of points stored as the destination history, if the number of points stored as the destination history increases, it becomes difficult to find a desired point from the list. For example, when using a list in which the points stored as the destination history are arranged in order from the current position as described above, it is possible to easily find a point close to the current position. It is difficult to find the distant points.

  Therefore, the present invention sets the destination in the past even if the number of points stored as the destination history is large in the navigation system that performs route guidance to the point set as the destination. An object is to assist a user so that a desired point at an arbitrary position can be easily selected from the points.

  To achieve the above object, the present invention calculates a current position and stores a point set as a destination as a past destination point in a navigation system that performs route guidance to a set destination. A storage unit, a map of a geographical range including all positions of past destination points satisfying a predetermined condition among the past destination points stored in the destination history unit, and arranged on the map, A destination history map display unit for displaying a destination history map corresponding to each of the past destination points satisfying a predetermined condition and including a past destination mark representing the position of the corresponding past destination point on the map; Accepting the selection of the past destination mark on the destination history map displayed by the destination map display unit, and accepting the selection of the past destination point corresponding to the selected past destination mark Is that a point that the selection receiving unit.

Here, in this navigation system, past destination points that satisfy a predetermined condition stored in the destination history unit may be all past destination points stored in the destination history unit.
Here, the above navigation system further includes, for each geographical area, a travel frequency storage unit that stores, for each geographical area, the number of times the current position enters and exits the geographical area as the travel frequency of the geographical area. In the destination history map display unit, the geographical map having a high travel frequency is included in the map included in the destination history map according to the travel frequency of each geographical area stored in the travel frequency storage unit. You may make it make it a map which emphasized and expressed the area rather than the said geographical area with a low driving frequency.

In this case, in the travel frequency storage unit, for each of a plurality of types of geographical areas having different sizes that are set redundantly for the same geographical range, the travel frequency of each geographical area is stored, In the destination history map display unit, a type of geographical area in which the number of geographical areas in the map falls within a predetermined range is set as a working geographical area, and a map to be included in the destination history map is According to the traveling frequency of each working geographical area stored in the frequency storage unit, the working geographical area having a high traveling frequency is emphasized and expressed as a map that is emphasized than the working geographical area having a low traveling frequency. It may be.
Here, these navigation systems may be configured such that, in the destination history map display unit, a map included in the destination history map is a map centered on the current position.

  In the above-described navigation system, in the destination history map display unit, when the range of the map to be included in the destination history map is not in the whole world, the map is centered in both the longitude and latitude directions with respect to the current position. If the range of the map included in the destination history map is the whole world, the map is a map centered on a point whose longitude is equal to the longitude of the current position and whose latitude is 0. You may make it do.

Further, in the above navigation system, the destination history map display unit determines the scale of the map included in the destination history map according to the size of the distribution range of past destination points satisfying the predetermined condition. All the positions of the past destination points that satisfy the conditions are included in the map, and the scale of the map is changed so as to be reduced according to the size of the distribution range of the past destination points or the degree of the size. It is preferable.
In the above navigation system, the destination history map display unit displays the destination history map including the current position mark indicating the current position on the map as the destination history map. It may be configured.

Here, in the navigation system described above, the past destination mark arranged at the position closest to the position designated on the destination history map displayed by the destination map display unit in the point selection receiving unit. And a selection of a past destination point corresponding to the selected past destination mark may be received.
In the navigation system described above, the past destination is arranged at a position that is closer than a predetermined level to a position specified on the destination history map displayed by the destination map display unit in the point selection receiving unit. When there is a plurality of selected past destination marks, a list of past destination points corresponding to the existing past destination marks is displayed and specified in the list. Alternatively, it may be configured to accept selection of a past destination point.

  In the navigation system described above, the past destination that is arranged at a position that is closer than a predetermined level to a line specified on the destination history map displayed by the destination map display unit in the point selection receiving unit. When there is a plurality of selected past destination marks, a list of past destination points corresponding to the existing past destination marks is displayed and specified in the list. You may comprise so that selection of the past destination point may be received.

  In the above navigation system, there are a plurality of the past destination marks arranged in the closed figure designated on the destination history map displayed by the destination map display unit in the point selection receiving unit. In this case, a list of past destination points corresponding to the plurality of existing past destination marks may be displayed, and selection of past destination points selected from the list may be accepted.

Further, the above navigation system may include a destination setting unit that sets a past destination point received by the point selection receiving unit as a destination.
In the above navigation system, the destination history unit may be arranged on a server on the WAN and shared by a plurality of navigation systems used by users of the navigation system.
According to the above navigation system, a point set as a destination in the past is stored as a past destination point, a destination history map represented by a past destination mark is displayed on the map, and a destination history map is displayed. Above, selection of the past destination mark is accepted, and selection of a point corresponding to the selected past destination mark is accepted.

  Therefore, even when the number of past destination points is large, the user can easily select a desired past destination point at an arbitrary position from the destination history map.

  As described above, according to the present invention, in a navigation system that provides route guidance to a point set as a destination, even if the number of points stored as the destination history is large, the destination is set in the past. The user can be supported so that a desired point at an arbitrary position can be easily selected from the points.

It is a block diagram which shows the structure of the navigation system which concerns on embodiment of this invention. It is a figure which shows the facility table and destination log | history table which concern on embodiment of this invention. It is a figure which shows the driving frequency data which concern on embodiment of this invention. It is a figure which shows the example of a display of the navigation system which concerns on embodiment of this invention. It is a flowchart which shows the destination log | history display process which concerns on embodiment of this invention. It is a figure which shows the example of a display of the destination log | history display process which concerns on embodiment of this invention. It is a figure which shows the example of a display of the destination log | history display process which concerns on embodiment of this invention. It is a figure which shows the example of a display of the destination log | history display process which concerns on embodiment of this invention. It is a figure which shows the example of a display of the destination log | history display process which concerns on embodiment of this invention. It is a figure which shows the example of a display of the destination log | history display process which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described.
FIG. 1 shows a configuration of a navigation system according to the present embodiment.
As illustrated, the navigation system includes a navigation device 1, an operation unit 2, a display device 3, a vehicle state sensor 4, and a GPS receiver 5. Here, the vehicle state sensor 4 is various sensors that detect a vehicle state, 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.

The navigation device 1 includes a current state calculation unit 11, a route search unit 12, a storage device 13 that stores map data representing a map, a memory 14, a control unit 15, a guidance image generation unit 16, an operation unit 2, and a display device. 3 has a GUI control unit 17 that provides a user with a GUI using 3.
However, the above navigation apparatus 1 may be 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 of the navigation device 1 described above may be realized as a process embodied by a microprocessor executing a program prepared in advance. In this case, such a program may be provided to the navigation apparatus 1 via a recording medium or an appropriate communication path.

In such a configuration, the storage device 13 stores a facility table in addition to the map data.
As shown in FIG. 2a, the facility table has entries (each row in the figure) provided for each of a plurality of facilities, and each entry represents a facility number serving as a facility identifier and a facility name. Facility name indicating the facility name, facility genre indicating the type of entertainment facility, landmark / historic site, restaurant, store, facility coordinates indicating the location of the facility, and facility detailed information indicating detailed information of other facilities such as a telephone number Is registered.

Next, the destination history table held in the storage device 13 or the memory 14 in this embodiment will be described.
As shown in FIG. 2b, the destination history table has entries (each row in the figure) provided for each point set as the destination up to now.
Each entry represents a set date and time indicating the date and time when the corresponding point is set as the destination, a point coordinate indicating the position of the corresponding point, a point name indicating the name of the corresponding point, and a type of the corresponding point. The point genre and the corresponding facility number are registered. However, the corresponding facility number is registered when the corresponding point is a facility whose entry is registered in the facility table, and represents the facility number of the facility.

Next, the driving frequency data held in the storage device 13 or the memory 14 in the present embodiment will be described.
As shown in FIG. 3, the travel frequency data includes a scale level 1 travel frequency table and a scale level 2 travel frequency table.
The scale level 1 driving frequency table corresponds to each of the scale 1 level meshes that are each geographical area obtained by dividing the geographical range represented by the map of the map data into each geographical range of a predetermined size. In each entry, a mesh number indicating the identification of the corresponding scale 1 level mesh and the number of times of entry / exit are registered.

  In addition, the scale level 2 travel frequency table is a scale that is obtained by dividing the geographical range represented by the map of the map data into geographical ranges having a predetermined size smaller than the scale 1 level mesh. Each entry has a corresponding entry (each row in the figure), and a mesh number indicating the identification of the corresponding reduced-scale 2-level mesh and the number of times of entry and exit are registered in each entry.

Here, it is assumed that the scale 2 level mesh is obtained by dividing the scale 1 level mesh into about 10 to 100 pieces in the latitude and longitude directions, respectively.
Now, returning to FIG. 1, in such a configuration, the current state calculation unit 11 of the navigation device 1 repeatedly performs the following processing.
That is, the current state calculation unit 11 has a map around the current position determined last time indicated by the map data read from the storage device 13 with respect to the current position estimated from the outputs of the vehicle state sensor 4 and the GPS receiver 5. The most likely coordinates as the current position and the most likely direction as the current traveling direction are calculated as the current position and the current traveling direction, respectively, and set in the memory 14.

  The control unit 15 monitors the current position calculated by the current state calculation unit 11, and if the current position passes through the boundary of the scale level 1 mesh, the mesh number of the scale level 1 mesh including the current position before passing is determined. The entry / exit count of the entry in the registered scale level 1 traveling frequency table is increased by 1, and the entry / exit count of the entry in the scale level 1 traveling frequency table in which the mesh number of the scale level 1 mesh including the current position after passing is registered. Increases by 1.

  In addition, if the current position passes the boundary of the scale level 2 mesh, the control unit 15 stores the entry of the scale level 2 traveling frequency table in which the mesh number of the scale level 2 mesh including the current position before the passage is registered. The entry / exit count is incremented by 1, and the entry / exit count of the entry in the scale level 2 traveling frequency table in which the mesh number of the scale level 2 mesh including the current position after passing is registered is incremented by 1.

  Here, since the number of times of entering and exiting the mesh is considered to increase as the traveling frequency of the mesh increases, the number of times of entering and exiting the mesh can be regarded as the traveling frequency of the mesh. Therefore, by managing the number of times of entering and exiting the mesh in units of meshes as described above, it is possible to efficiently manage the traveling frequency in each region with a smaller amount of data.

  Further, the control unit 15 accepts a destination setting from the user via the operation unit 2 and the GUI control unit 17 in response to a user destination setting request, and sets the destination setting in the memory 14 and the destination setting. Register the information of the selected point in the destination history table. Here, details of the reception of the destination setting from the user and the registration of the information of the point set at the destination in the destination history table will be described later.

Then, after receiving the destination setting, the control unit 15 causes the route search unit 12 to search for a route to the destination set in the memory 14 if a route search is instructed by the user.
The route search unit 12 reads out map data of a necessary geographical range from the storage device 13, searches a route from the current position set in the memory 14 to the destination by a predetermined search algorithm, and guides the searched route to the guide route. And the route data of the guidance route is set in the memory 14. If the current position set in the memory 14 is near the destination, the control unit 15 determines that the destination has arrived and stores it in the memory 14. It also performs processing to clear the set destination and guidance route.

Further, the control unit 15 repeats the following guide image generation process.
That is, the control unit 15 determines the display direction so that the current traveling direction set in the memory 14 or the north direction is on the upper side, and determines the map scale according to a user setting or initial setting made in advance. Then, a geographical range having a predetermined size determined according to the determined display orientation and the determined map scale around the current position with reference to the current position is determined as the map display range.

  Then, on the map based on the map data in the determined map display range, a current position mark is drawn on the map corresponding to the current position set in the memory 14 on the map. The generated guide image is generated. Further, when the route data of the guide route is set in the memory 14, the control unit 15 displays a guide route graphic representing the guide route on the map in the determined map display range in the guide image generation unit 16. Draw in the guide image. In addition, when the destination set in the memory 14 is included in the map display range, the control unit 15 causes the guidance image generation unit 16 to draw a destination mark indicating the position of the destination on the map in the guidance image.

On the other hand, the guide image generation unit 16 generates the guide image by performing the above drawing under the control of the control unit 15, and displays the guide image on the display device 3 via the GUI control unit 17.
FIG. 4 shows a guide image displayed on the display device 3 in this way.
As shown in the figure, the guide image 200 displays a current position mark 202 representing the current position and a guidance route graphic 203 representing the guidance route on a map image 201 representing a map within the map display range that is a range around the current position. Will be.
Hereinafter, the reception of the destination setting from the above-described user and the registration of the set destination information in the destination history table will be described.
The control unit 15 can receive the destination setting in three modes.
The first mode of receiving the destination setting is as follows.
That is, if the user instructs the destination setting after the point on the map 201 of the guide image 200 shown in FIG. 4 is specified via the operation unit 2 by the user, the control unit 15 specifies the specified point. Set the coordinates of the destination as the destination, create a new entry in the destination history table, and refer to the map data using the current date and time as the set date and the coordinates of the point set as the destination as the point coordinates. And register the address of the corresponding point obtained as a point name.

Next, the second mode of receiving the destination setting is as follows.
That is, if a facility search is instructed by the user via the operation unit 2, the control unit 15 displays an appropriate search condition reception window on the display device 3 and receives a search condition such as a facility name and a facility genre from the user. . After that, if a search execution is instructed by the user, the facility entry that matches the accepted search condition is searched from the facility table, and a list of facility names of the searched entries is displayed on the display device 3. When the user selects the facility name on the list and sets the destination, the facility coordinates of the selected facility name entry in the facility table are set as the destination. In addition, a new entry is created in the destination history table, and the facility of the entry with the selected facility name is set with the current date and time as the set date and the facility coordinates of the selected facility name entry as the point coordinates. Using the name as the point name, the facility genre of the selected facility name entry as the point genre, and registering the facility number of the selected facility name entry as the corresponding facility number.

Next, the third mode of receiving the destination setting is as follows.
That is, the control unit 15 executes the destination history display process shown in FIG. 5 when the user instructs the destination history search via the operation unit 2.
As shown in the figure, this process starts with a map that is centered on the current position and that contains all the coordinates of the points registered in the destination history table entry as large as possible. A destination history map showing the current position and all the points registered in the destination history table entries is displayed on the display device 3 (step 502).

  Here, FIGS. 6a and 6b show the destination history map displayed in this way, and FIG. 6a shows a geographical area where the points registered in the destination history table entries are relatively wide. FIG. 6B shows a destination history map when the locations registered in the destination history table entries are distributed in a relatively narrow geographical range.

Here, as shown in the figure, in order to include all of the point coordinates registered in the destination history table entry in the map 600, the geographical location registered in the destination history table entry is relatively wide. The destination history map in the case of being distributed in the range has a small map scale of the map 600, and the destination history in the case where the points registered in the destination history table entries are distributed in a relatively narrow geographical range. As for the map, the map scale of the map 600 is increased.
It should be noted that the map scale of the destination history map is such that when the map scale that can be used for the destination history map is limited to a plurality of map scales, All the point coordinates registered in the entry may be set to the maximum map scale that can be included in the map 600.

Further, the destination history map is registered in the destination history table entry with the past destination mark 602 provided for each point registered in the destination history table entry on the map 600 with the current location mark 601. It is a representation of the location that has been.
However, for the destination history map, as shown in FIGS. 7A and 7B, either the scale level 1 mesh or the scale level 2 mesh is selected as the working mesh according to the map scale of the destination history map, and the destination history is selected. Each active mesh on the map is displayed in a display form corresponding to the number of entries / exits of the entry in which the mesh number of the current mesh is registered, which is one of the entries of the scale level 1 travel frequency table or the scale level 2 travel frequency table. You may do it.

Here, according to the map scale of the destination history map, the current mesh has a scale level 1 mesh and a scale level 2 mesh so that the number of current meshes in the destination history map does not exceed a predetermined upper limit value. Choose one.
For example, as shown in FIG. 7a, when the map scale of the destination history map is small, if the scale level 2 mesh is used as the working mesh, the number of working meshes in the destination history map becomes too large. Use a scale level 1 mesh.
In FIG. 7a, each of the scale level 1 meshes in the destination history map is displayed in a form that is emphasized as the number of entrances / exits is increased according to the number of entrances / exits corresponding to the mesh. Here, in the example shown in the figure, the brightness of each scale level 1 mesh in the destination history map is reduced as the number of entrances / exits is reduced, thereby emphasizing the scale level 1 mesh having a large number of entrances / exits in the destination history map. Is displayed.

On the other hand, if the map scale of the destination history map is large as shown in FIG. 7b, the number of working meshes in the destination history map will not be too large even if a scale level 2 mesh is used as the working mesh. A scale level 2 mesh is used as the working mesh.
Then, each of the scale level 2 meshes in the destination history map is displayed in a form that is emphasized as the number of times of entry / exit increases according to the number of times of entry / exit corresponding to the mesh. Here, also in the example shown in the figure, by reducing the brightness of each scale level 1 mesh in the destination history map as the number of entrances and exits decreases, a scale level 1 mesh having a large number of entrances and exits in the destination history map is obtained. It is highlighted.

Whether the scale level 1 mesh or the scale level 2 mesh is used as the working mesh is determined so that the number of working meshes in the destination history map falls within a predetermined range for each map scale range of the destination history map. It is determined in advance.
In the present embodiment, only two kinds of meshes having different sizes, ie, a scale 1 level mesh and a scale 2 level mesh, are used. However, as the mesh, one kind of mesh or three or more kinds of meshes having different sizes are used. You may do it.
As described above, in the destination history map, each mesh is displayed in a form that is emphasized as the number of times of entry / exit increases according to the number of times of entry / exit corresponding to the mesh. Considering this, the past destination mark 602 at the desired point can be found.

  Now, returning to FIG. 5 and displaying the destination history map in this way, as shown in FIGS. 6a, b, 7a and b, the wide area button 603 and the detail button 604 displayed together with the destination history map are used. The occurrence of the user's map scale change operation (step 504) and the designation of the position on the destination history map using the operation unit 2 by the user (step 506) are monitored.

When the map scale change operation of the user occurs (step 504), the map scale of the map 600 of the destination history map is changed (step 508), and the process returns to the monitoring of steps 504 and 506.
On the other hand, when the user designates a position on the destination history map (step 506), there is a past destination mark 602 arranged within a predetermined distance (for example, several centimeters) from the designated position. In step 510, the destination history map is scrolled so that the designated position becomes the center of the map (step 526), and the process returns to the monitoring in steps 504 and 506.

  On the other hand, if there is a past destination mark 602 arranged within a predetermined distance from the designated position (step 510), it is checked whether there is only one past destination mark 602 (step 512). ), If there is one, the point name registered in the entry of the target point in the destination history table is displayed with the point indicated by the existing past destination mark 602 as the target point (step 514), and the target point The selection of the process for is accepted (step 516). Here, as processing for the target point, processing for setting the target point to the destination and display of information on the target point are accepted.

  That is, for example, as shown in FIG. 8a, when only one past destination mark 711 is displayed near the position 701 designated by the user, the point where the past destination mark 711 represents the position is targeted. As a point, a window 720 showing the point name 721 of the target point is displayed, and the “Destination setting” button 722 provided in the window 720 is used to select a setting process for setting the target point to the destination “View information”. Selection of processing for displaying information on the target point is accepted with a button 723.

Returning to FIG. 5, if the selection of the process is accepted as described above (step 516), the selected process is executed for the target point (step 518), and the display on the display device 3 is displayed on the guide image 200. (Step 520), and the destination history display process is terminated.
Here, in the process of setting the destination for the target point, the point coordinates registered in the target point entry of the destination history table are set as the destination, and a new entry is created in the destination history table, The point coordinates, the point name, the point genre, and the corresponding facility number of the target point entry in the destination history table are copied to the created entry, and the current date and time is registered as a set date in the created entry.

  In addition, in the process of displaying the information of the target point with respect to the target point, the map of the vicinity of the target point is enlarged, or the facility table entry of the target facility number registered in the target point entry of the destination history table The facility detailed information registered in is displayed, or the process of setting the target point to the destination is received in response to the execution instruction for the process of setting the target point to the destination.

  On the other hand, when there are a plurality of past destination marks 602 arranged within a predetermined distance from the position designated by the user on the destination history image (step 510), each past destination mark 602 present is represented. A list of point names registered in the target candidate point entry in the destination history table is displayed with each point as a target candidate point (step 522), and the target candidate point as a target point from the list is displayed. Selection of a name and selection of processing for the target point are accepted (step 524).

  That is, for example, as shown in FIG. 8b, when a plurality of past destination marks 761 and 762 are displayed near the position 751 designated by the user, the past destination marks 761 and 762 indicate the positions. A window 770 showing a list 771 of point names of the target candidate points is displayed with each point to be represented as a target candidate point, and a “destination” button 772 provided for the point name of each target candidate point in the list 771 is displayed. Selection of target candidate points to be selected as target points and selection of destination setting processing are accepted, and target candidates to be set as target points with the “information” button 773 provided for the point names of the target candidate points in the list 771 The selection of the point selection and the processing for displaying the information of the target point is accepted.

  Returning to FIG. 5, if the selection of the point name and the selection of the process as described above are accepted (step 524), the selected process is executed for the selected target point (step 518) and displayed. The display of the apparatus 3 is returned to the display of the guide image 200 (step 520), and the destination history display process is terminated.

The destination history display process performed by the control unit 15 has been described above.
By the way, in the above destination history display processing, the point where the past destination mark 602 near the position designated by the user on the destination history image represents the position is accepted as the target point or the target candidate point. May receive the target point and the target candidate point from the user by other methods.

  That is, for example, as shown in FIG. 9a, an operation of drawing a line 901 on the destination history image is accepted from the user, a past destination mark 602 within a predetermined distance from the line 901 is extracted, and the extracted past destination is If there is one, a point represented by the past destination mark 602 is accepted as a target point, and if there are a plurality of extracted past destination marks 602, each of the points represented by each past destination mark 602 is designated as a target candidate point. You may make it accept.

  Or, for example, as shown in FIG. 9b, an operation of drawing a closed figure 902 on the destination history image is accepted from the user, and a past destination mark 602 within the range surrounded by the figure 902 is extracted and extracted. If there is only one past destination, the point represented by the past destination mark 602 is accepted as a target point. If there are a plurality of past destination marks 602 extracted, each point represented by each past destination mark 602 is represented. You may make it accept as an object candidate point.

The embodiment of the present invention has been described above.
By the way, in the above embodiment, all the points registered in the destination history table entry are displayed by the past destination mark 602 on the destination history map. Only points that satisfy a predetermined condition registered in the entry may be displayed with a past destination mark 602 on the destination history map. That is, for example, a predetermined number of points are selected from those having a new set date and time registered in the destination history table entry, and only the selected points are displayed on the destination history map by the past destination mark 602. Or select a point whose set date and time registered in the entry of the destination history table is within a predetermined period from the current date and time, and display only the selected point with the past destination mark 602 on the destination history map. The point coordinate registered in the entry of the destination history table selects a point within a predetermined distance from the current position, and only the selected point is displayed by the past destination mark 602 on the destination history map. You may do it.

In these cases, as a map of the destination history map, a map that is as large as possible can include all the point coordinates of the points displayed by the past destination mark 602 on the destination history map. Use a scale map. However, as described above, the map scale of the destination history map is such that when the map scale that can be used for the destination history map is limited to a plurality of map scales, It is good also as the largest map scale which can include all the point coordinates of the point displayed with the past destination mark 602 on a destination history map in a map.
Alternatively, if the map 600 of the destination history map is set in advance by the user so that the map scale of the destination history map is fixedly displayed at a specific map scale, the current position of the specific map scale You may make it make it a map centering on.

Moreover, although the above embodiment demonstrated taking the application to the navigation system mounted in a motor vehicle as an example, this embodiment is applicable similarly to portable apparatuses provided with navigation functions, such as a smart phone and a tablet apparatus. is there.
In the above embodiment, the destination history table is stored locally in the navigation system, and the case where only the navigation system is used has been described. However, the destination history table is stored in a server on the WAN such as the Internet, The destination history table stored in the server may be shared by a plurality of navigation systems used by the same user or a portable device having a navigation function.

  That is, in this case, a navigation system used by the user and a plurality of devices such as portable devices having a navigation function are provided with a function of accessing a server on the WAN via a mobile communication network or the like. The destination history table of the server on the WAN is shared to perform the processing shown in the above embodiment.

In this way, the user can easily select a point set as a destination in the past as a destination or the like regardless of the device being used.
In the above embodiment, the destination history map is a map centered on the current position. However, the destination history map does not necessarily have to be a map centered on the current position.
That is, for example, only when the display range of the destination history map is a world map based on the Mercator projection or the mirror projection, as shown in FIG. May be used as the destination history map.

Alternatively, as the destination history map, a map having a minimum geographical range that does not center on the current position and that can include all of the point coordinates registered in the destination history table entry in the map is used. Also good.
As described above, according to the present embodiment, a point that has been set as a destination in the past is stored in the destination history table, and a point that has been set as a destination in the past on the map is indicated by the past destination mark 602. The represented destination history map is displayed, the past destination mark 602 is selected according to the position where the designation is received on the destination history map, and the selection of the point corresponding to the selected past destination mark 602 is accepted.

  Therefore, even when the number of points set as destinations in the past stored in the destination history table is large, the user can easily select a desired point at an arbitrary position from the destination history map. Become.

  DESCRIPTION OF SYMBOLS 1 ... Navigation apparatus, 2 ... Operation part, 3 ... Display apparatus, 4 ... Vehicle state sensor, 5 ... GPS receiver, 11 ... Current state calculation part, 12 ... Route search part, 13 ... Memory | storage device, 14 ... Memory, 15 ... Control unit, 16 ... Guide image generation unit, 17 ... GUI control unit.

Claims (20)

A navigation system that calculates a current position and provides route guidance to a set destination,
A destination history storage unit for storing a point set as a destination as a past destination point;
A map of a geographical range including all positions of past destination points that satisfy a predetermined condition among the past destination points stored in the destination history part, and the predetermined condition that is arranged on the map A destination history map display unit for displaying a destination history map corresponding to each of the past destination points, including a past destination mark representing the position of the corresponding past destination point on the map;
A point selection receiving unit for receiving selection of the past destination mark on the destination history map displayed by the destination map display unit and receiving selection of a past destination point corresponding to the selected past destination mark; A navigation system comprising: The navigation system according to claim 1,
The navigation system according to claim 1, wherein the past destination points satisfying a predetermined condition stored in the destination history part are all past destination points stored in the destination history part. The navigation system according to claim 1 or 2,
For each geographical area, a traveling frequency storage unit that stores the number of times the current position enters and exits the geographical area as a traveling frequency of the geographical area;
The destination history map display unit travels the geographical area with a high travel frequency according to the travel frequency of each geographical area stored in the travel frequency storage unit for a map included in the destination history map. A navigation system, characterized in that the map is emphasized rather than the geographical area having a low frequency. The navigation system according to claim 3,
The travel frequency storage unit stores the travel frequency of each geographical area for each of a plurality of types of geographical areas with different sizes set in duplicate for the same geographical range,
The destination history map display unit sets a type of geographic area in which the number of geographic areas in the map falls within a predetermined range as a working geographic area, and maps a map to be included in the destination history map to the travel According to the driving frequency of each working geographical area stored in the frequency storage unit, the working geographical area having a high driving frequency is emphasized and expressed as a map that is emphasized than the working geographical area having a low driving frequency. A navigation system characterized by The navigation system according to claim 1, 2, 3 or 4,
The navigation system characterized in that the destination history map display unit uses a map centered on the current position as a map to be included in the destination history map. The navigation system according to claim 1, 2, 3 or 4,
The destination history map display unit, when the range of the map to be included in the destination history map is not the whole world, the map is a map centered on the current position in both longitude and latitude directions, and the destination When the range of the map included in the history map is the whole world, the map is a map centered on a point where the longitude is equal to the longitude of the current position and the latitude is 0 . The navigation system according to claim 1, 2, 3, 4, 5 or 6,
The destination history map display unit displays a scale of a map to be included in the destination history map according to a size of a distribution range of past destination points satisfying the predetermined condition. All the positions are included in the map, and the map is changed so that the scale of the map is reduced according to the size of the distribution range of the past destination points or the degree of the size. The navigation system according to claim 1, 2, 3, 4, 5, 6 or 7,
The destination history map display unit further displays the destination history map including a current position mark indicating a current position on the map as the destination history map. The navigation system according to claim 1, 2, 3, 4, 5, 6, 7 or 8,
The point selection accepting unit accepts selection of the past destination mark arranged at a position closest to the position designated on the destination history map displayed by the destination map display unit and is selected. A navigation system characterized by receiving selection of a past destination point corresponding to the past destination mark. The navigation system according to claim 1, 2, 3, 4, 5, 6, 7 or 8,
The point selection accepting unit accepts selection of the past destination mark arranged at a position close to a position specified by the destination history map displayed by the destination map display unit at a predetermined level or more. If there are a plurality of past destination marks, a list of past destination points corresponding to the plurality of past destination marks is displayed, and the past destination points specified in the list are selected. A navigation system characterized by accepting. The navigation system according to claim 1, 2, 3, 4, 5, 6, 7 or 8,
The point selection receiving unit receives the selection of the past destination mark arranged at a position close to a predetermined level or more to a line specified on the destination history map displayed by the destination map display unit. If there are a plurality of past destination marks, a list of past destination points corresponding to the plurality of past destination marks is displayed, and selection of past destination points specified in the list is accepted. A navigation system characterized by that. The navigation system according to claim 1, 2, 3, 4, 5, 6, 7 or 8,
When there are a plurality of the past destination marks arranged in the closed figure designated on the destination history map displayed by the destination map display unit, the point selection receiving unit A navigation system that displays a list of past destination points corresponding to the past destination mark and accepts selection of past destination points selected from the list. A navigation system according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12.
A navigation system comprising a destination setting unit for setting a past destination point received by the point selection receiving unit as a destination. A navigation system according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 or 13.
The navigation system according to claim 1, wherein the destination history storage unit is arranged in a server on the WAN and is shared by a plurality of navigation systems used by a user of the navigation system. A computer program that is read and executed by a computer,
The computer,
A current position calculator for calculating the current position;
Route guidance to the set destination with the route guidance unit,
A destination history storage unit for storing a point set as a destination as a past destination point;
A map of a geographical range including all positions of past destination points that satisfy a predetermined condition among past destination points stored in the destination history storage unit, and the predetermined condition that is arranged on the map A destination history map display unit for displaying a destination history map corresponding to each of the past destination points, including a past destination mark representing the position of the corresponding past destination point on the map;
Functions as a point selection accepting unit that accepts selection of the past destination mark on the destination history map displayed by the destination map display unit and accepts selection of a past destination point corresponding to the selected past destination mark A computer program characterized by causing A computer program according to claim 15, comprising:
A computer program characterized in that past destination points satisfying a predetermined condition stored in the destination history storage unit are all past destination points stored in the destination history storage unit. A computer program according to claim 15 or 16, comprising:
The destination history map display unit uses a map centered on the current position as a map to be included in the destination history map. A computer program according to claim 15 or 16, comprising:
The destination history map display unit, when the range of the map to be included in the destination history map is not the whole world, the map is a map centered on the current position in both longitude and latitude directions, and the destination When the range of the map included in the history map is all over the world, the map is a map centered on a point where the longitude is equal to the longitude of the current position and the latitude is 0 . A computer program according to claim 15, 16, 17 or 18,
The destination history map display unit displays a scale of a map to be included in the destination history map according to a size of a distribution range of past destination points satisfying the predetermined condition. A computer program characterized by changing all positions to be included in the map. A computer program according to claim 15, 16, 17, 18 or 19,
The destination history map display unit further displays the destination history map including a current position mark representing a current position on the map as the destination history map.