JP2018044959A - Display device - Google Patents

Abstract

To improve the convenience of destination setting in a navigation device. A control unit 42 of a navigation device 1 estimates a traveling direction (L1) using a starting position SP and a current position PP in movement of the navigation device 1, and determines a destination (P1) in the estimated traveling direction. Explore. [Selection] Figure 4

Description

  The present invention relates to a display device.

  When a destination is selected by a user, there is a navigation device that searches and guides a route according to the destination (Patent Documents 1 and 2).

JP 2003-057049 A JP 2010-023062 A

However, it is troublesome for the user to select the destination every time before departure. In particular, when the user wants to leave quickly, the user starts to move without setting a destination.
In an electronic device such as a navigation device, the special search function is not fully utilized due to the trouble of setting a destination.

  Thus, the navigation device is required to improve the convenience of setting the destination, for example.

  The invention according to claim 1 includes acquisition means for acquiring current position information, and display means for displaying point information of points previously guided by a route including the current position information among a plurality of points. This is a display device.

It is a schematic block diagram which shows the hardware of the navigation apparatus which concerns on 1st Embodiment of this invention. It is explanatory drawing which shows the data for navigation memorize | stored in the memory device of FIG. It is a flowchart which shows the guidance process by the control part of FIG. It is a detailed flowchart of the prediction guidance process of the destination of FIG. It is explanatory drawing of the search process of a candidate destination. It is a figure which shows an example of the display screen which displays a some candidate destination. It is explanatory drawing which shows an example of the guidance route from the present position to the selected candidate destination. It is a figure which shows an example of a route guidance screen. It is a figure which shows an example of the updated display screen which displays a some candidate destination. It is a flowchart of the prediction guidance process of the destination in 2nd Embodiment. It is explanatory drawing of the search process of a candidate destination, and a narrowing-down process. It is a figure which shows an example of the display screen which displays a some candidate destination. It is explanatory drawing of the search process of a candidate destination in 3rd Embodiment. It is a schematic block diagram of the navigation system which concerns on 4th Embodiment of this invention. It is a schematic block diagram which shows the hardware of the server apparatus of FIG. It is explanatory drawing of the search process of the candidate destination in 4th Embodiment. It is a figure which shows an example of the display screen which displays a some candidate destination in 4th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a schematic configuration diagram showing hardware of the navigation apparatus 1 according to the first embodiment of the present invention. The navigation device 1 is a type of electronic device.
1 includes a GPS (Global Positioning System) receiving unit 11, an acceleration sensor 12, a display device 13, a touch panel device 14, a wireless communication unit 15, a memory device 16, a CPU (Central Processing Unit) 17, a RAM (Random). Access Memory) 18 and a system bus 19 for connecting them.
The navigation device 1 is a type of electronic device that searches for and presents a destination candidate, searches for a route to the selected destination, and guides the searched route.
The navigation device 1 is mounted on a vehicle such as an automobile. The navigation device 1 may be formed in a small portable size.

  The GPS receiver 11 receives radio waves from GPS satellites. The radio wave from the satellite includes, for example, information on the position and time of the GPS satellite. The GPS receiving unit 11 calculates a coordinate value indicating the position of the GPS receiving unit 11 from the positions and times of a plurality of GPS satellites, and outputs them to the CPU 17. For example, latitude and longitude values can be used as the coordinate value. The coordinate value calculated by the GPS receiver 11 can be used as, for example, the current position of the navigation device 1.

  The acceleration sensor 12 detects the acceleration acting on the navigation device 1 and outputs it to the CPU 17. The acceleration sensor 12 detects, for example, acceleration in three axial directions that acts on the navigation device 1. By double-integrating the acceleration detected by the acceleration sensor 12, the moving direction and the moving amount of the navigation device 1 can be obtained. By correcting the coordinate value calculated by the GPS receiver 11 using the moving direction and the moving amount, the current state of the navigation device 1 can be obtained even in a situation where GPS satellite radio waves cannot be received, such as indoors such as underground and buildings. You can get the position.

  The display device 13 is a liquid crystal display device, for example. The display device 13 displays a display screen. The display device 13 displays various display screens for navigation based on display data input from the CPU 17. The display screen for navigation includes, for example, a destination selection screen, a guidance route selection screen to the selected destination, and a guidance screen for the selected guidance route.

The touch panel device 14 is, for example, an electrostatic or pressure sensitive touch panel device. The touch panel device 14 is transparent or translucent, and is arranged so as to overlap the display screen of the display device 13. When there is a user operation, the touch panel device 14 outputs input data indicating the operation position to the CPU 17 as operation position data for the navigation screen.
The touch panel device 14 is a kind of input device. The navigation apparatus 1 may include, for example, a key input device as an input device.

The radio communication unit 15 performs radio communication with a base station (not shown), for example. For wireless communication between the base station and the wireless communication unit 15, for example, wireless communication data encoded by 64QAM (Quadrature Amplitude Modulation) is used.
The wireless communication unit 15 encodes data input from the CPU 17 with 64QAM and transmits the data to the base station. The base station decodes the encoded data received from the wireless communication unit 15, and transmits the decoded communication data to a server device (not shown) through a communication network to which the base station is connected.
Further, the base station receives communication data transmitted to the wireless communication unit 15 from the server device through the communication network, encodes it with 64QAM, and transmits the encoded data to the wireless communication unit 15. The wireless communication unit 15 decodes the encoded data received from the base station, and outputs the decoded data to the CPU 17.

The memory device 16 is composed of, for example, a hard disk device or a nonvolatile memory. The memory device 16 stores various data necessary for navigation processing.
FIG. 2 is an explanatory diagram showing navigation data stored in the memory device 16 of FIG.
The memory device 16 in FIG. 2 includes, as navigation data, map data 21, registered location data 22, current location data 23, departure location data 24, candidate destination data 25, destination data 26, destination history data 27, candidates. The route data 28, the guide route data 29, the route history data 30, and the communication acquisition data 31 are stored.
FIG. 2 also shows a navigation program 41 stored in the memory device 16.

The map data 21 includes, for example, texture data for each area of the map displayed on the touch panel device 14 and route data used for route search.
The texture data is data for displaying a map of the area covered by the map data 21. The texture data includes, for example, a display image of each area (mesh) in the cover area and a coordinate value indicating the position (range) of each area.
The route data is data used for searching for a moving route in the covered area. The route data includes, for example, data on roads on which people or vehicles can pass. The road data includes, for example, a road name, road identification information, a coordinate value list indicating a road route, and structural information such as the number of lanes and the presence / absence of a sidewalk of the road.

The registered place data 22 is data of points that can be set as destinations. The points that can be set as the destination include, for example, an amusement park, park, ruins, structure, building, station, store, intersection, and parking lot. The registered place data 22 includes, for example, the coordinate value of the point, the name of the object existing at the point, and the type as the data of each point.
Part or all of the map data 21 and the registered place data 22 may be acquired by the wireless communication unit 15. Data acquired by the wireless communication unit 15 is stored in the memory device 16 as communication acquisition data 31.

  The current position data 23 is data indicating the current position of the navigation device 1. The current position data 23 includes, for example, the coordinate value of the current position. The current position data 23 can be updated with the latitude and longitude data of the current position of the navigation device 1 that is repeatedly calculated by the GPS receiver 11.

  The departure position data 24 is data indicating a departure position where the navigation device 1 starts moving. The departure position data 24 is data indicating a past position. The departure position data 24 includes, for example, a coordinate value of the departure position.

  Candidate destination data 25 is data of points searched as destination candidates based on destination search conditions. Candidate destination data 25 includes, for example, the names and coordinate values of corresponding objects present at the points selected as candidate destinations as data for specifying the searched points.

  The destination data 26 is data of a point selected as the destination. The destination data 26 includes, as data for specifying the selected point, for example, the name and coordinate value of the counterpart existing at the point selected as the destination.

  The destination history data 27 is data of a route selected as a route to reach the destination in the past. The destination history data 27 is data in which the destination data 26 is accumulated. The destination history data 27 includes, for example, names and coordinate values of corresponding objects existing at the point selected as the destination as data of each route selected as the destination in the past.

  The candidate route data 28 is data indicating one or more routes searched as a route from the starting position or the current position to the destination. The candidate route data 28 includes, for example, a coordinate value list indicating candidate routes as data indicating the searched candidate routes.

  The guide route data 29 is data of one guide route selected from the candidate route data 28. The guide route data 29 includes, for example, a coordinate value list indicating the guide route as data indicating the guide route.

  The route history data 30 is data of a route that has been a guide route in the past. The route history data 30 is data in which the guide route data 29 is accumulated. The route history data 30 includes, for example, a coordinate value list indicating a guide route as data of a route that has been a guide route in the past.

In FIG. 1, a CPU 17 is a microcomputer.
The RAM 18 is a volatile memory that temporarily stores programs and data.
The CPU 17 reads the navigation program 41 stored in the memory device 16 of FIG. Thereby, as shown in FIG. 1, the control part 42 is implement | achieved in the navigation apparatus 1. FIG.
The control unit 42 functions as the control unit 42 of the navigation device 1 and controls the overall operation of the navigation device 1.
In order to realize the navigation function in the navigation device 1, the control unit 42 acquires, for example, a process for acquiring the position of the navigation device 1, a process for estimating the traveling direction of the navigation device 1, and a destination in the estimated traveling direction. A process of searching for a destination, a process of displaying the searched destination on the display device 13 as a selectable candidate destination, a process of searching and guiding a guide route with the selected candidate destination as a destination, Execute.
The navigation program 41 stored in the memory device 16 may be recorded in the memory device 16 before shipment of the navigation device 1 or may be recorded in the memory device 16 after shipment. The navigation program 41 recorded in the memory device 16 after shipment may be one installed on a computer-readable recording medium such as a CD-ROM (CompactDisc-ReadOnlyMemory), or a server (not shown) via a communication network or the like. It may be downloaded from a device.

Next, the operation of the navigation device 1 of FIG. 1 will be described.
When the navigation function is activated, the control unit 42 acquires the latest position of the navigation device 1 using the coordinate value of the GPS receiving unit 11 or the acceleration of the acceleration sensor 12. The control unit 42 updates the current position data 23 with the acquired latest position.
The control unit 42 reads texture data including the current position from the map data 21 using the current position data 23. The control unit 42 generates data for displaying the current position on the map and outputs the data to the display device 13. The display device 13 displays the current position on the map.
The control unit 42 periodically repeats the current position data 23 and display map update processing described above.
For example, when a destination is set in the navigation device 1, the control unit 42 executes guidance processing to the set destination.

FIG. 3 is a flowchart showing the guidance processing by the control unit 42 of FIG.
In the guidance process of FIG. 3, the control unit 42 determines whether it is necessary to set a destination (step ST1).
The control unit 42 generates display data for a confirmation screen for determining whether or not to set the destination, and causes the display device 13 to display the display data.
The touch panel device 14 detects a user operation on the screen displayed on the display device 13. When the operation position data is input from the touch panel device 14, the control unit 42 determines whether or not the destination needs to be set based on the operation position.

When setting of the destination is necessary, the control unit 42 starts a process of searching for and guiding the destination and the guidance route.
Specifically, the control unit 42 first displays a list of destinations on the display device 13 in order to select a destination (step ST2).
The control unit 42 reads point data from the registered location data 22 and the destination history data 27 of the memory device 16, generates display data for displaying these points in a selectable manner, and causes the display device 13 to display the display data.
The touch panel device 14 detects a user operation for one point displayed on the display device 13. Based on the operation position data input from the touch panel device 14, the control unit 42 selects a point displayed at the operation position as a destination (step ST3). The control unit 42 updates the destination data 26 of the memory device 16 with the data at the selected point.

When the destination is selected, the control unit 42 searches for a route to the selected destination (step ST4).
The control unit 42 reads the current position data 23, the destination data 26 and the route data, and searches for a route from the current position to the destination. The control unit 42 searches for a route according to a route search condition such as the shortest distance, the shortest time, the general road priority, the toll road priority, and the roof road priority. In the memory device 16, the control unit 42 updates the candidate route data 28 with the searched route. The candidate route data 28 stores a plurality of route candidate data corresponding to a plurality of search conditions.

After searching for a plurality of route candidates, the control unit 42 selects one of the searched plurality of routes as a guide route (step ST5).
The control unit 42 reads the texture data of the candidate route data 28 and the map data 21, generates data for displaying the searched plurality of routes on the map, and causes the display device 13 to display the data.
The touch panel device 14 detects a user operation for one route displayed on the display device 13. Based on the operation position data input from the touch panel device 14, the control unit 42 selects the route displayed at the operation position as the guide route. The control unit 42 updates the guide route data 29 of the memory device 16 with the selected route data.

When the destination and the guidance route are selected, the control unit 42 starts route guidance on the guidance route (step ST6).
The control unit 42 reads the current position data 23 and determines a map range to be displayed on the display screen of the display device 13.
Next, the control unit 42 reads the guide route data 29 and the texture data of the map range to be displayed, generates data for displaying the current position and the guide route on the map, and causes the display device 13 to display the data. The user can start moving from the current position to the destination according to the displayed map and guide route.
For example, the control unit 42 repeats the above-described process every time the current position data 23 is updated, and updates the display of the display device 13. The map and the guide route displayed on the display device 13 are updated according to the movement of the navigation device 1. The user can confirm the moving direction from the map and the guide route displayed on the navigation device 1 and move to the selected destination.

When the route guidance to the destination is completed, the control unit 42 executes an end process.
The control unit 42 updates the destination history data 27 with the guided destination data 26. Further, the route history data 30 is updated with the guide route data 29.
As a result, the destination and guidance route that actually guided the user are stored in the memory device 16. The user can later call them for reuse.

In this way, the navigation device 1 can search for the user's destination and guide route, and guide the user to the destination using the guide route.
However, as described above, in order to use this guidance function, the user needs to set a destination and a guidance route at the departure point before starting the movement.
Setting the destination each time before departure is troublesome for the user.
In addition, when the user wants to start quickly, the user may leave without setting the destination with the effort.
Thus, it cannot be said that the guidance function is fully utilized.
Therefore, in the present embodiment, even when the destination is not set before departure, the destination can be easily set after the start of movement. Thereby, the convenience of the guidance function can be improved. This will be described in detail below.

If it is determined in step ST1 of FIG. 3 that setting of a destination is not necessary, the control unit 42 determines whether or not movement has further started (step ST7).
For example, when the detection position of the GPS receiving unit 11 has changed by a predetermined distance or more, the control unit 42 determines that the movement has started.
The control unit 42 repeats the determination process of step ST1 and step ST7 until the start of movement is detected.

  Then, when the movement is started before the destination is selected before departure, the control unit 42 starts a predicted guidance process for the destination (step ST8).

FIG. 4 is a detailed flowchart of the destination prediction guidance processing of FIG.
In the predicted guidance process for the destination shown in FIG. 4, the control unit 42 stores the starting position where the movement is started (step ST11).
The control unit 42 updates the departure position data 24 with the current position data 23 of the navigation device 1 when it is determined to start the prediction guidance process.
Moreover, the control part 42 reads the texture data of the map data 21, and displays the map which displays the present position and its periphery on the display device 13 (step ST12).

After storing and displaying the departure position, the control unit 42 starts a process of predicting and presenting the candidate destination.
In this candidate destination prediction presentation process, the control unit 42 first acquires the current position after the start of movement (step ST13).
For example, the control unit 42 acquires the current position calculated by the GPS receiving unit 11.
When the GPS receiving unit 11 has not calculated a new current position, the control unit 42 uses the detection value of the acceleration sensor 12 in the non-updated period after the current position of the GPS receiving unit 11 is updated last time. The current position calculated last by the GPS receiver 11 is corrected, and the current position is acquired.
The control unit 42 updates the current position data 23 with the acquired latest current position.

After acquiring the latest current position, the control unit 42 estimates the traveling direction of the navigation device 1 (step ST14).
For example, the control unit 42 estimates the direction from the departure position to the current position as the traveling direction of the navigation device 1.
In addition, the control unit 42 searches for a point within a predetermined angle range with respect to the estimated traveling direction of the navigation device 1 as a candidate destination for selecting the destination while moving. (Step ST15). The control unit 42 reads the registered place data 22 and the destination history data 27 and searches for a point within a predetermined angle range. The control unit 42 updates the candidate destination data 25 with data of one or more points obtained by searching for the candidate destination.

FIG. 5 is an explanatory diagram of the candidate destination search process.
FIG. 5 is a map that displays one area of the map data 21. FIG. 5 illustrates a departure position SP, a current position PP, and a plurality of points to be searched, a first point P1 to a sixth point P6.
In this case, the control unit 42 first estimates the direction from the coordinate value of the departure position SP to the coordinate value of the current position PP as the traveling direction of the navigation device 1. Among the three dotted lines in FIG. 5, the middle dotted line L1 indicates the estimated signal direction of the navigation device 1.

Next, the control unit 42 specifies a predetermined angle range from the traveling direction (L1) of the current location with the estimated traveling direction (L1) of the navigation device 1 as a reference. Of the three dotted lines in FIG. 5, two dotted lines L2 and L3 at both ends indicate boundary lines in a predetermined angle range. A space between the boundary lines (L2, L3) is specified as a predetermined angle range from the traveling direction (L1). The boundary lines (L2, L3) extend from the current position PP.
The control unit 42 searches for a point where the latitude and longitude belong within a predetermined angle range as a candidate destination. The control unit 42 extracts points having latitude and longitude within the angle range from the registered place data 22 and the destination history data 27. The control unit 42 updates the candidate destination data 25 with the extracted data of one or more points.
In the case of FIG. 5, the control unit 42 determines the latitude and longitude of the first point P1, the second point P2, and the sixth point P6 from the first point P1 to the sixth point P6 to be searched within a predetermined angle range. Search as a point to belong.

It should be noted that a large number of points are expected to exist within the predetermined angle range.
In this case, the control unit 42 may search, as a plurality of candidate destinations, a plurality of points existing within the angle range and within a predetermined distance range such as 10 km from the starting position.
Further, the control unit 42 may search a plurality of points within the angle range as a plurality of candidate destinations in a predetermined number in order from the closest to the starting position.
As will be described later, the plurality of searched candidate destinations are displayed on the display device 13 in a selectable manner. The number of candidate destinations that can be displayed simultaneously on the display device 13 is physically limited by the size of the display screen of the display device 13. Therefore, even if the plurality of candidate destinations to be searched are limited to a predetermined number or less as in the latter case, the points that can be selected by the user are not substantially limited. By limiting the plurality of candidate destinations to a predetermined number or less, the candidate destination search processing time can be shortened to a substantially constant time or less.
Further, the points registered in the registered place data 22 and the destination history data 27 are classified based on the attributes of the points, and a plurality of candidate destinations having a predetermined number or less are searched for in the classification priority order according to the user. Also good.

  After searching for a candidate destination within a predetermined angle range from the traveling direction, the control unit 42 displays the searched candidate destination on the display device 13 (step ST16). The control unit 42 reads the candidate destination data 25 and displays the extracted candidate destination on the display device 13.

FIG. 6 is a diagram illustrating an example of a display screen that displays a plurality of candidate destinations.
The display screen of FIG. 6 is displayed on the display device 13 of the navigation apparatus 1.
The display range of the map of FIG. 6 corresponds to the lower right portion of the area of FIG. The current position and the current traveling direction of the navigation device 1 are displayed by an arrow AR.
Then, at the left end of the display screen of the display device 13, three display objects indicating the three extracted candidate destinations are displayed along the outer periphery of the display screen. Specifically, the display object OB1 at the first point P1, the display object OB2 at the second point P2, and the display object OB3 at the sixth point P6 are displayed.
The arrangement of the display objects OB1 to OB3 on the display screen corresponds to the positional relationship of points in FIG. For example, the display object OB1 is arranged so that the first point P1 exists on the extended line of the display object OB1 in the display range of the map of FIG.
The user can confirm whether or not a desired destination is presented as a candidate destination by displaying on the display device 13. The user selects a display object at a desired destination. The touch panel device 14 outputs data indicating the operation position of the user. The control unit 42 determines that one display object has been selected based on the operation position data. The control unit 42 updates the destination data 26 with the candidate destination data corresponding to the selected display object.

Then, when one of the plurality of candidate destinations is selected as the destination (step ST17), the control unit 42 uses the route data to display one or more candidate routes from the current position to the selected candidate destination. Search for and display. When a guide route is selected from a plurality of candidate routes, the control unit 42 starts route guidance using the selected guide route (step ST18).
Note that the processing from route search to route guidance corresponds to the processing from step ST4 to step ST6 in FIG.

FIG. 7 is an explanatory diagram showing an example of a guide route from the current position to the selected candidate destination.
The area of FIG. 7 corresponds to the area of FIG. In this example, the second point P2 is selected as the destination.
And when the 2nd point P2 which is one of the displayed several candidate destinations P1, P2, and P6 is selected as a destination, the control part 42 selects from the present position at the time of selection. The guide route R1 to the second point P2 is searched.
Thereafter, as shown in FIG. 8, the control unit 42 displays the current position PP at the time of selecting the candidate destination on the display screen of the display device 13, and the current position PP to the second point P2 as the destination. The guide route R1 is displayed superimposed on the map.
FIG. 8 is a diagram illustrating an example of a route guidance screen.

  On the other hand, when the displayed candidate destination is not selected by the operation of the touch panel device 14 in step ST17 of FIG. 4, the control unit 42 executes the destination prediction guidance processing from step ST13 to step ST17 again. The controller 42 repeatedly executes the processes from step ST13 to step ST17 until one of the candidate destinations is selected during the movement.

FIG. 9 is a diagram illustrating an example of an updated display screen that displays a plurality of candidate destinations.
The current position has moved from the current position in FIG.
As a result, the arrow line AR on the display screen in FIG. 9 has moved to the upper side of the map (display screen) compared to that in FIG.
Thus, when the current position moves upward, the traveling direction of the navigation device 1 and the predetermined angle range move upward with respect to the area of FIG. The control unit 42 searches for the first point P1 and the second point P2 as points within the angle range.
As a result, on the display screen of FIG. 9, the display object corresponding to the first point P1 and the display object corresponding to the second point P2 are displayed as selectable display objects.
In this way, the candidate destination presented to the user changes according to the movement of the navigation device 1 by the user.

  As described above, when the user departs without selecting a destination, the navigation device 1 according to the present embodiment automatically searches for and presents the candidate destination after starting the movement based on the actual movement route after the departure. During movement, the user can select a target candidate destination automatically searched according to the moving direction, and receive route guidance to the candidate destination. The user can use route guidance without setting a destination before departure.

  In particular, the navigation device 1 according to the present embodiment stores the departure position SP at the time of departure, specifies the direction from the departure position SP toward the current position PP after the start of movement as the traveling direction (L1), and uses the traveling direction as a reference. The candidate destination within the predetermined angle range is searched and presented. Therefore, the navigation apparatus 1 can present a point that the user has not visited in the past as a candidate destination, and can guide a route to the unreachable point.

  In addition, the navigation device 1 of the present embodiment searches for a candidate destination regardless of the display range of the map displayed on the display screen of the display device 13, and displays a candidate destination outside the map display range on the display screen. Presented by selectable objects placed along the perimeter of the. The user can select a candidate destination outside the display range of the map as the destination by selecting the displayed object. The navigation apparatus 1 can also present distant points that are not displayed on the display device 13 as selectable candidate destinations. The user selects a point that is outside the display range while moving a map of a scale suitable for guidance on the display screen of the display device 13 as a candidate destination and moves to the selected destination. You can get route guidance.

[Second Embodiment]
Next, a navigation device 1 according to a second embodiment of the present invention will be described.
The navigation device 1 according to the second embodiment differs from that of the first embodiment in the candidate destination search process. Hereinafter, differences from the first embodiment will be described.

FIG. 10 is a flowchart of destination prediction guidance processing in the second embodiment.
In the destination prediction guidance process of FIG. 10, the control unit 42 stores the departure position (step ST11), displays the map (step ST12), and then starts a process of predicting and presenting the candidate destination.

In this candidate destination prediction presentation process, the control unit 42 executes two-stage processing, that is, candidate destination extraction processing and narrowing-down processing.
In order to extract the candidate destination, the control unit 42 acquires the latest current position (step ST13), estimates the traveling direction of the navigation device 1 (step ST14), and has a predetermined angular range with respect to the traveling direction. A point inside is searched as a candidate destination (step ST15).

Next, the control part 42 performs the narrowing-down process of several points obtained by the extraction process (step ST21).
The control unit 42 searches the route history data 30 for past movement routes that have been guided to the extracted points.
The control unit 42 compares the searched past route with the current movement route of the navigation device 1. For example, the control unit 42 determines a match based on whether or not the departure position and the current position are located on the searched past route.
If these routes do not match, the control unit 42 excludes the point reached by the searched past route from the searched points.
The point where the route matches is left at the searched point. The point where the route is not searched is left as the searched point.
The control unit 42 updates the candidate destination data 25 with data of one or more points narrowed down by the past route.

FIG. 11 is an explanatory diagram of a candidate destination search process and a narrowing process.
FIG. 11 corresponds to FIG. Further, the first past route R2 and the second past route R3 of the route history data 30 are illustrated in addition to the departure position SP, the current position PP, and the first point P1 to the sixth point P6.
The first past route R2 is a route from the departure position to the second point P2.
The second past route R3 is a route from the departure position to the sixth point P6.

In FIG. 11, the first point P1, the second point P2, and the sixth point P6 are searched from the first point P1 to the sixth point P6 to be searched by the search process of the candidate destination in step ST15.
The control unit 42 executes a narrowing process according to the past route for each searched point (step ST21).
For example, it is assumed that the user has gone to the sixth point P6 by the second past route R3. The current position PP is out of the second past route R3. In this case, the control unit 42 excludes the sixth point P6 extracted by the search.
Further, it is assumed that the user has been to the second point P2 by the first past route. The current position PP is on the second past route R3. In this case, the control unit 42 leaves the second point P2 extracted by the search.
Further, it is assumed that there is no past route for the first point P1. In this case, the control unit 42 leaves the first point P1 extracted by the search.

After narrowing the candidate destinations to points other than the points where the past routes do not match, the control unit 42 displays the searched candidate destinations on the display device 13 (step ST16).
The control unit 42 reads the candidate destination data 25 and displays the extracted candidate destination on the display device 13.

FIG. 12 is a diagram illustrating an example of a display screen that displays a plurality of candidate destinations.
The display screen of FIG. 12 corresponds to FIG.
Then, at the left end of the display screen of FIG. 12, two display objects corresponding to the two extracted candidate destinations are displayed along the outer periphery of the display screen. Specifically, a display object corresponding to the first point P1 and a display object corresponding to the second point P2 are displayed.

  In the destination prediction guidance process of FIG. 10, the processes after step ST <b> 17 are the same as those in FIG. 4 of the first embodiment, and a description thereof is omitted.

As described above, the navigation device 1 according to the present embodiment excludes points that do not match the past movement paths from points located within a predetermined angle range from the traveling direction (L1) from the candidate destinations. . Narrow down candidate destinations based on past travel routes.
Thereby, it is possible to prevent a point that is unlikely to be selected by the user from being presented as a candidate destination. It is possible to preferentially present a desired destination that the user is about to travel on the route on which the user has started moving.
For example, in the first embodiment, the display of the display object OB3 at the sixth point P6 is erased only after moving to the current position indicated by the arrow AR in FIG. On the other hand, in the present embodiment, as indicated by the arrow AR in FIG. 12, the display object OB3 is not displayed at the current position before that.

In the second embodiment, the control unit 42 searches for a point of the registration destination data 22 and the destination history data 27 within a predetermined angle range with respect to the traveling direction (L1), as in the first embodiment. Narrowing is applied based on the travel history (past routes R2, R3).
In addition to this, for example, the control unit 42 may narrow down, as candidate destinations, points where both the destination and the travel history match based on the past travel history (past route).
Further, the control unit 42 compares the past travel history (past routes R2, R3) with the current travel route, and selects a destination of the past travel history that matches the current travel route as a candidate destination. May be.
Moreover, the control part 42 may switch the process in 1st Embodiment, and the process in 2nd Embodiment according to a condition. For example, the narrowing process according to the second embodiment may be executed only when the number of points obtained by the process according to the first embodiment is large.

[Third Embodiment]
Next, a navigation device 1 according to a third embodiment of the present invention will be described.
The navigation device 1 according to the third embodiment differs from that of the first embodiment in the candidate destination search process. Hereinafter, differences from the first embodiment will be described.

FIG. 13 is an explanatory diagram of a candidate destination search process according to the third embodiment.
In the candidate destination search process during movement in step ST15 of FIG. 4, the control unit 42 determines the angle range in consideration of the estimated traveling direction of the navigation device 1 and the traveling direction at the current position PP.
For example, the control unit 42 responds to the first vector D1 indicating the traveling direction of the navigation device 1 having a magnitude corresponding to the distance from the departure position SP to the current position PP, and the continuous movement distance of the current position PP in the same direction. Are combined with the second vector D2 having a predetermined size, and this combined direction is set as a traveling direction used for the candidate destination search process during movement.
The control unit 42 searches for a point within the predetermined angle range with respect to the synthesis direction as a reference destination as a reference for selecting the destination during movement (step ST15).
FIG. 13 shows a line segment L4 indicating the composite direction and two dotted lines L5 and L6 indicating both ends of a predetermined angle range with reference to the composite direction. The control unit 42 searches for a point located between the dotted line L5 and the dotted line L6 as a candidate destination for selecting as a destination during movement. The control unit 42 searches the first point P1 and the second point P2 among the first to sixth points P1 to P6 to be searched as points to which latitude and longitude belong within a predetermined angle range.

As described above, when the user departs without selecting a destination, the navigation device 1 according to the present embodiment automatically searches for and presents the candidate destination after starting the movement based on the actual movement route after the departure. During movement, the user can select a target candidate destination automatically searched according to the moving direction, and receive route guidance to the candidate destination. The user can use route guidance without setting a destination before departure.
In particular, in the present embodiment, since the current traveling direction is synthesized with the traveling direction of the navigation device 1 from the departure position SP to the current position PP, a candidate destination can be searched for in a range that considers the current traveling direction. . Considering the road situation that cannot go straight from the departure position SP to the destination, more likely candidate destinations can be extracted.
Further, the traveling direction of the navigation device 1 at the time of synthesis is synthesized as a vector having a size corresponding to the distance from the starting position SP to the current position PP. Therefore, it is difficult to extract a point that cannot be a candidate as a candidate destination at a time point that has advanced considerably from the departure position SP. The closer to the destination, the more optimal points can be extracted as candidate destinations.
In the present embodiment, the traveling direction of the navigation device 1 from the departure position SP to the current position PP and the moving direction of the current position PP are combined. In addition, for example, the moving direction of the current position PP may be set as a reference direction within a predetermined angle range.

[Fourth Embodiment]
FIG. 14 is a schematic configuration diagram of a navigation system 51 according to the fourth embodiment of the present invention.
The navigation system 51 of FIG. 14 includes a multi-function portable terminal 52, a server device 53, and a communication network 54 that connects them.
In the navigation system 51 of the fourth embodiment, the server device 53 performs navigation processing in order to realize the same navigation as that of the second embodiment on the multi-function mobile terminal 52, and the multi-function mobile terminal 52 Functions as a user interface.
The navigation system 51 is a kind of client server system.
Hereinafter, differences from the second embodiment will be mainly described.

  The communication network 54 is composed of, for example, the Internet or a telephone line network. The communication network 54 includes a base station 55 that performs wireless communication with the multi-function mobile terminal 52.

The multifunctional portable terminal 52 is a terminal that can be carried by a user such as a smartphone.
The hardware configuration of the multi-function portable terminal 52 is the same as that of the navigation device 1 of FIG. The same reference numerals are used and illustration is omitted.

The wireless communication unit 15 of the multi-function mobile terminal 52 establishes a communication line with the base station 55. The wireless communication unit 15 receives various communication data from the server device 53 in navigation using the multi-function portable terminal 52 using the communication line. The wireless communication unit 15 outputs the received communication data to the CPU 17.
The wireless communication unit 15 transmits communication data such as a request input from the CPU 17 using a communication line. The communication data is received by the server device 53 through the communication network 54 after being received by the base station 55.

The CPU 17 of the multi-function portable terminal 52 reads the navigation program 41 stored in the memory device 16 into the RAM 18 and executes it. Thereby, the client control unit 61 of the multi-function mobile terminal 52 is realized.
The client control unit 61 executes control for causing the multi-function portable terminal 52 to function as a user interface of the server device 53.
Specifically, for example, the client control unit 61 generates display data based on communication data received from the server device 53 by the wireless communication unit 15 and causes the display device 13 to display the display data.
Further, the client control unit 61 generates a request corresponding to the operation based on the operation position data input from the touch panel device 14 and outputs the request to the wireless communication unit 15. The wireless communication unit 15 transmits the request to the server device 53.

FIG. 15 is a schematic configuration diagram showing hardware of the server device 53 of FIG.
15 includes a server communication unit 71, a server memory device 72, a server CPU 73, a server RAM 74, and a server system bus 75 that connects these components.
Since each part 71-75 of these server apparatuses 53 has the same function as the thing of the same name of the navigation apparatus 1 of FIG. 1, description is abbreviate | omitted.

As the navigation data, the server memory device 72 has the same map data 21, registered location data 22, candidate destination data 25 of the multi-function mobile terminal 52, destination data 26 of the multi-function mobile terminal 52, multi-function. Destination history data 27 of the mobile terminal 52, candidate route data 28 of the multi-function mobile terminal 52, guidance route data 29 of the multi-function mobile terminal 52, route history data 30 of the multi-function mobile terminal 52, current of the multi-function mobile terminal 52 The position data 23, the departure position data 24 of the multi-function mobile terminal 52, and the communication acquisition data 31 in the multi-function mobile terminal 52 are stored.
In addition to this, the server memory device 72 stores destination history data 76 of other multifunctional mobile terminals not shown, and route history data 77 of other multifunctional portable terminals.

The server CPU 73 reads the navigation program 41 stored in the server memory device 72 into the server RAM 74 and executes it. Thereby, a server control unit 78 is realized in the server device 53.
The server control unit 78 functions as a control unit that controls the entire navigation system 51.
In order to realize a navigation function using the multi-function mobile terminal 52 as a user interface, the server control unit 78 estimates a traveling direction of the multi-function mobile terminal 52 and, for example, a process of acquiring the position of the multi-function mobile terminal 52. Processing for searching for a destination in the estimated traveling direction, processing for displaying the searched destination as a selectable candidate destination on the display device 13 of the multi-function mobile terminal 52, and selected candidates And searching for a guidance route with the destination as the destination for guidance.

  Hereinafter, the operation of the navigation system 51 will be described.

In order to execute the navigation process using the multi-function mobile terminal 52, the server control unit 78 acquires the latest current position of the multi-function mobile terminal 52 from the multi-function mobile terminal 52.
The server control unit 78 transmits a request for position information to the multi-function mobile terminal 52. The request is transmitted from the server communication unit 71 and is received by the wireless communication unit 15 of the multi-function mobile terminal 52 through the communication network 54 and the base station 55.
The client control unit 61 of the multi-function mobile terminal 52 acquires the latest current position of the multi-function mobile terminal 52 in response to the request received by the wireless communication unit 15 of the multi-function mobile terminal 52 and transmits it to the server device 53. The latest data of the current position is transmitted from the wireless communication unit 15 of the multi-function mobile terminal 52 to the base station 55 and received by the server communication unit 71 of the server device 53 through the base station 55 and the communication network 54.

  The server control unit 78 that has acquired the current position of the multi-function mobile terminal 52 executes a process of causing the multi-function mobile terminal 52 to display the current position of the multi-function mobile terminal 52. The server control unit 78 reads texture data of a region including the current position of the multi-function mobile terminal 52, generates map display data, and transmits the map display data to the multi-function mobile terminal 52. The client control unit 61 generates display data to be displayed on the display device 13 based on the received data, and causes the display device 13 to display the display data.

The server control unit 78 repeatedly acquires the latest current position of the multi-function mobile terminal 52 from the multi-function mobile terminal 52. The server control unit 78 determines whether or not the multifunctional portable terminal 52 has moved based on the plurality of acquired current positions.
Then, for example, when the movement of the multi-function mobile terminal 52 is started before executing the process of setting the destination of the multi-function mobile terminal 52, the server control unit 78 follows the same flow as in FIG. Predictive guidance processing is executed.

In the predicted destination guidance process, the server control unit 78 updates the departure position data 24 with the current position when the movement start is detected.
Thereafter, when a new current position is acquired, the direction from the departure position to the latest current position is estimated as the traveling direction of the multi-function mobile terminal 52, and candidate destinations within a predetermined angle range are searched from the traveling direction.
In searching for this candidate destination, the server control unit 78 first reads the destination history data 76 of the other multi-function mobile terminal together with the registered location data 22 and the destination history data 27 of the multi-function mobile terminal 52. The server control unit 78 extracts a point in a predetermined angle range from the traveling direction from the registered place data 22, the destination history data 27 of the multi-function mobile terminal 52, and the destination history data 76 of another multi-function mobile terminal. .

Next, the server control part 78 performs the narrowing-down process about the extracted point. The server control unit 78 reads the route history data 30 of the multi-function mobile terminal 52 and the route history data 77 of other multi-function mobile terminals, and removes the destination of the past route that does not match the current travel route from the extracted points. .
The server control unit 78 updates the candidate destination data 25 with data of one or more points narrowed down by past routes (route history data 77) of other multi-function mobile terminals.

FIG. 16 is an explanatory diagram of a candidate destination search process in the fourth embodiment.
FIG. 16 corresponds to FIG.
FIG. 16 illustrates a seventh point P7 as the destination history data 76 of another multi-function mobile terminal and a fourth past route R4 to the seventh point P7 by another multi-function mobile terminal. ing.
In this case, the server control unit 78 performs the first point P1, the second point P2, the sixth point from a plurality of points from the first point P1 to the seventh point P7 by the point extraction process in step ST15 of FIG. P6 and the seventh point P7 are extracted.
Moreover, the server control part 78 performs the narrowing-down process by the past path | route about several extracted points (step ST21). Using the route history data 30, the server control unit 78 searches the seventh point P7 corresponding to the fourth past route R4 together with the first point P1 and the second point P2 as narrowed candidate destinations.

Note that, for example, the sixth point P6 is included in the destination history data 76 of another multi-function mobile terminal, and the past route passing the current position PP different from FIG. 11 in the route history data 77 of the other multi-function mobile terminal. Is recorded, and the server control unit 78 does not delete the sixth point P6 unlike the second embodiment when the past route matches the current travel route.
The server control unit 78 matches candidates in any one of the past routes of the route history data 30 of the multi-function mobile terminal 52 and the past routes of the destination history data 76 of other multi-function mobile terminals. Leave the destination.

  Next, the server control unit 78 generates data for displaying candidate destinations searched and narrowed down, and transmits the data to the multi-function mobile terminal 52. The client control unit 61 displays the candidate destination on the display device 13 and selects one candidate destination based on the operation position data of the touch panel device 14. The client control unit 61 transmits data indicating the selected candidate destination to the server device 53. The server control unit 78 updates the destination data 26 with the candidate destination data included in the received data.

FIG. 17 is a diagram illustrating an example of a display screen that displays a plurality of candidate destinations according to the fourth embodiment.
The display screen of FIG. 17 corresponds to FIG.
Then, at the left end of the display screen of the display device 13 of FIG. 17, three display objects corresponding to the three extracted candidate destinations are displayed along the outer periphery of the display screen. Specifically, the display object OB1 at the first point P1, the display object OB2 at the second point P2, and the display object OB4 at the seventh point P7 are displayed.
The client control unit 61 can select one of the three display objects as the destination. The client control unit 61 transmits data indicating the selected candidate destination to the server device 53.

  When the data of the candidate destination selected as the destination is received, the server control unit 78 updates the destination data 26, searches for a candidate route to the selected destination, and transmits it to the multi-function mobile terminal 52. The client control unit 61 displays the candidate route on the display device 13 and selects one candidate route based on the operation position data of the touch panel device 14. The client control unit 61 transmits data indicating the selected candidate route to the server device 53. The server control unit 78 selects one of the candidate routes as the guide route based on the candidate route data included in the received data, and updates the guide route data 29.

After updating the guide route data 29, the server control unit 78 causes the multi-function mobile terminal 52 to guide the guide route.
Specifically, when the current position of the multi-function mobile terminal 52 is acquired, the server control unit 78 reads the guide route data 29 together with the texture data corresponding to the movement of the current position of the multi-function mobile terminal 52. Then, data for displaying the current position and the guide route on the map is generated and transmitted to the multi-function portable terminal 52. The client control unit 61 generates display data based on the data received from the server device 53 and causes the display device 13 to display the display data. As a result, the guide route is displayed on the map on the display device 13 of the multi-function mobile terminal 52.

  As described above, in the fourth embodiment, candidate destinations to be displayed on the multi-function mobile terminal 52 are narrowed down using the destination history data 76 and the route history data 77 of other multi-function mobile terminals. Therefore, a point where a user using another multi-function mobile terminal headed on the current travel route can be presented as a candidate destination.

For example, in the navigation system 51 of the fourth embodiment, the server device 53 performs the same flow process as the navigation device 1 of the second embodiment.
In addition to this, for example, the server device 53 may perform processing similar to that of the navigation device 1 of the first embodiment.

In the navigation system 51 of the fourth embodiment, the multi-function portable terminal 52 functions as a user interface of the server device 53, and the server device 53 executes all the processes for navigation.
In addition to this, for example, the multi-function mobile terminal 52 may execute a part of a series of processes for navigation instead of the server device 53.
The multi-function mobile terminal 52 may execute all the processes for navigation, and the server device 53 may store data necessary for the navigation process. In this case, the server device 53 transmits the requested data to the multi-function mobile terminal 52 in response to a request from the multi-function mobile terminal 52.

  The above embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications or changes can be made without departing from the scope of the invention.

For example, in the above embodiment, a point within a predetermined angle range is searched for as a candidate destination with respect to the traveling direction of the navigation device 1 or the multi-function mobile terminal 52.
In addition, for example, a point in the traveling direction of the navigation device 1 or the multi-function mobile terminal 52 is searched as a candidate destination, or a point within a predetermined distance width from the traveling direction is searched as a candidate destination. Also good.

1 Navigation device (electronic equipment)
13 Display device (display unit)
15 Wireless communication unit (client communication unit)
41 Navigation program
42 control unit (acquisition unit, estimation unit, destination search unit, guidance route search unit)
51 Navigation System 52 Multifunctional Mobile Terminal (Electronic Device)
53 Server device 54 Communication network 61 Client control unit 71 Server communication unit 78 Server control unit (acquisition unit, estimation unit, destination search unit, guide route search unit)
L1 dotted line (traveling direction)
OB1, OB2, OB3, OB4 Display objects P1, P2, P6 Candidate destination PP Current position SP Departure position (past position)
R2 2nd past route (movement history of electronic equipment)
R3 3rd past route (movement history of electronic equipment)
R4 4th past route (movement history of other electronic devices)

Claims (1)

Acquisition means for acquiring current position information;
Display means for displaying point information of points previously guided by a route including the current position information among a plurality of points;
A display device comprising:

Images