JP2014215144A - Map display device, display control unit and display control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a map display device enabling a user to recognise intuitively an area visitable within specified time, and to provide a display control unit and a display control method.SOLUTION: A map display device includes a route search part 7 for searching for a plurality of travelable routes along which a moving body can arrive at a destination from a current place by desired arrival time, an area setting part 9 for setting a visitable area which is an area through which the destination can be reached by the desired arrival time based on the travelable routes, and a display part 10 for displaying the visitable area on the map in distinction from other areas.

Description

  The present invention relates to a map display device, a display control device, and a display control method for displaying an area that can be visited without exceeding a desired arrival time.

  Conventionally, there is a map display device that guides a route from a current location to a destination by map display, and a car navigation device mounted on a vehicle is an example. Such a map display device searches for a route from the current location to the destination according to predetermined conditions such as cost, required time, and distance.

  For example, when the user inputs a destination and a desired arrival time, the map display device searches for and displays the route with the shortest required time (hereinafter, the shortest route). Thereby, if the user moves along the shortest route, the user can arrive at the destination within the desired arrival time earliest. However, if the user wants to stop at any place and then go to the destination or use a route other than the shortest route, the user can arrive at the destination by the desired arrival time for any route or stopover location. I couldn't find out easily.

  In order to solve this problem, an invention has been devised that searches for a route or stopover location that can arrive at a destination by the desired arrival time (for example, Patent Documents 1 to 3). In Patent Document 1, a facility located within a certain range from the current location of the vehicle is searched, a required time for passing through the facility is calculated, and a list of facilities that can be visited within the spare time is displayed. Proposed. Japanese Patent Application Laid-Open No. 2004-228867 proposes displaying a possible stop point that matches conditions such as required time and distance required for a stop input by the user. Further, in Patent Document 3, information on the main route from the departure point to the destination is stored, and for each of the plurality of drop-off candidate locations, a drop-off candidate route between the departure point and the destination is determined, and the drop-off candidate route is determined. It is proposed that at least one of the candidate routes is displayed together with the main route in the order in which the departure points to leave are close to the departure point.

JP 2008-003027 A JP 2002-257567 A JP 2008-20334 A

  However, since all of the techniques of Patent Documents 1 to 3 select a facility that can be visited from among the facilities scattered in various places and present it to the user, the area that can be visited and other areas are continuously displayed to the user. Not shown, the user could not recognize them intuitively.

  The present invention has been made in view of the above-described problems, and provides a map display device, a display control device, and a display control method capable of intuitively recognizing an area where a user can drop in within a specified time. With the goal.

  The map display device of the present invention includes a route search unit that searches for a plurality of travelable routes that a mobile body can reach from a current location to a destination by a desired arrival time, and a desired arrival time based on the travelable route. An area setting unit for setting a stopable area, which is an area that can reach the destination, and a display unit for displaying the map by distinguishing the stopable area from other areas are provided.

  The display control device of the present invention that performs map display control of the display unit includes a route search unit that searches for a plurality of travelable routes that the mobile body can reach from the current location to the destination by the desired arrival time; An area setting unit that sets a stopable area that is an area that can reach the destination by the desired arrival time based on the possible route, a display control unit that displays the stoppable area on the display unit separately from other areas, Is provided.

  The display control method of the present invention for displaying a map on the display unit includes: (a) a step of searching for a travelable route that can arrive at the destination from the current location of the mobile body by the desired arrival time; ) Based on the travelable route, setting a stoppable area that is an area that can reach the destination by the desired arrival time; and (c) displaying the stoppable area on the display unit separately from other areas; .

  The map display device of the present invention includes a route search unit that searches for a plurality of travelable routes that a mobile body can reach from a current location to a destination by a desired arrival time, and a desired arrival time based on the travelable route. An area setting unit for setting a stopable area, which is an area that can reach the destination, and a display unit for displaying the map by distinguishing the stopable area from other areas are provided. Therefore, the user can intuitively recognize the drop-in area and other areas.

  The display control device of the present invention that performs map display control of the display unit includes a route search unit that searches for a plurality of travelable routes that the mobile body can reach from the current location to the destination by the desired arrival time; An area setting unit that sets a stopable area that is an area that can reach the destination by the desired arrival time based on the possible route, a display control unit that displays the stoppable area on the display unit separately from other areas, Is provided. Therefore, the user can intuitively recognize the drop-in area and other areas.

  The display control method of the present invention for displaying a map on the display unit includes: (a) a step of searching for a travelable route that can arrive at the destination from the current location of the mobile body by the desired arrival time; ) Based on the travelable route, setting a stoppable area that is an area that can reach the destination by the desired arrival time; and (c) displaying the stoppable area on the display unit separately from other areas; . Therefore, the user can intuitively recognize the drop-in area and other areas.

It is a figure which shows the example of a display of a possible drop-in area. It is a block diagram which shows the block diagram of the map display apparatus of this invention. It is a flowchart which shows operation | movement of the map display apparatus of this invention. It is a flowchart which shows the route search operation | movement of the map display apparatus of this invention. It is a flowchart which shows the area setting operation | movement of the map display apparatus of this invention. It is a figure which shows the setting method of the area which can drop in. It is a figure which shows the setting method of the area which can drop in. It is a figure which shows the example of a display of a possible drop-in area.

<A. Embodiment 1>
The map display device according to the present invention calculates an area (hereinafter referred to as an area that can be visited) that can arrive at the destination before the user's desired arrival time after stopping, and the area that can be visited is divided into other areas. By displaying them separately, the user can intuitively recognize the area where they can drop in. FIG. 1 is an example of a display screen in the map display device of the present invention, and shows a display example of a drop-in area. In FIG. 1, the non-shaded part shows the area that can be visited.

  Hereinafter, the map display device of the present invention will be described by taking a navigation device mounted on a vehicle as an example. However, the present invention is not limited to this, and can be applied to other mobile navigation devices such as pedestrians. Is possible. In addition to a car navigation device for a moving body, a system that appropriately combines a PND (Portable Navigation Device), a portable terminal (for example, a mobile phone, a smartphone, a tablet, etc.), a server, and the like that can be mounted on a vehicle. It can apply also to the navigation apparatus constructed | assembled as. In this case, each function or each component of the navigation apparatus described below is distributed and arranged in each device that constructs the system.

<A-1. Configuration>
FIG. 2 is a block diagram showing a configuration of the navigation device 100 which is the map display device of the present invention. The navigation device 100 includes a current time acquisition unit 1, a GPS (Global Positioning System) signal reception unit 2, a current information management unit 3, an input unit 4, a destination information management unit 5, a control unit 6, a route search unit 7, and a storage unit. 8, an area setting unit 9, a display unit 10, and a warning unit 11 are provided.

  The current time acquisition unit 1 is composed of, for example, a radio clock, and acquires the current time. The GPS signal receiving unit 2 receives a GPS signal from a GPS satellite and acquires information on the current location of the vehicle. In addition, you may add correction | amendment by the speed information of a gyro sensor or a vehicle to the information of the present location acquired from the GPS signal. The current information management unit 3 acquires the current time from the current time acquisition unit 1 and the current location information from the GPS signal reception unit 2 in accordance with instructions from the control unit 6, and manages these information as current information. The GPS signal receiving unit 2 includes a communication interface and a CPU (Central Processing Unit) that executes a program, and the current information management unit 3 includes a CPU.

  The input unit 4 includes, for example, a mechanical switch provided on the casing of the navigation device 100, and accepts an operation from the outside of the map display device. The input unit 4 receives the position information of the destination and the desired arrival time at the destination from the user. The destination information management unit 5 receives the location information of the destination and the desired arrival time at the destination from the input unit 4, and manages these information as the destination information. The display unit 10 is configured by a liquid crystal display, for example. The input unit 4 and the display unit 10 may be integrally configured as a touch panel. Although the display unit 10 is shown as an internal configuration of the navigation device 100 in FIG. 1, the display unit 10 may be an external configuration of the navigation device 100. That is, in this case, the navigation device 100 operates as a display control device that controls the display content of the display unit 10.

  The control unit 6 controls the navigation device 100 as a whole. The route search unit 7 acquires the destination information from the destination information management unit 5 and the current information from the current information management unit 3 according to the instruction of the control unit 6, and can reach the destination by the desired arrival time. Search all routes to the destination. The storage unit 8 stores map data D1 and facility information data D2, and the route search unit 7 appropriately performs route search while acquiring these data from the storage unit 8. The facility information data D2 is data in which location information of a facility such as a convenience store or a gas station is associated with peripheral information such as business hours or the presence or absence of a parking lot. The map data D1, the facility information data D2, or a part of them may be stored in the storage unit 8 and acquired from a server separate from the navigation device 100 by communication means.

  The area setting unit 9 sets a stopable area based on the route search result of the route search unit 7. The display unit 10 displays a map so that the user can intuitively recognize the area where the person can stop by from the other areas.

<A-2. Operation>
Next, operation | movement of the navigation apparatus 100 is demonstrated along the flowchart of FIGS. 3 shows the overall operation of the navigation device 100, FIG. 4 shows the route search operation of the navigation device 100, and FIG. 5 shows the area setting operation of the navigation device 100, respectively.

  When the power of the navigation device 100 is turned on, the control unit 6 waits for user input of destination information (step S1). When the destination location information and the desired arrival time are input to the input unit 4 (Yes in step S1), these pieces of information are sent to the destination information management unit 5 and managed as destination information. Next, the current information management unit 3 acquires the current time and the current location information from the current time acquisition unit 1 and the GPS signal reception unit 2, respectively, and manages them as current information (step S2).

  Next, the route search unit 7 searches for a route from the current location to the destination (step S3). The route search process will be described in detail with reference to FIG. 4. First, a route search target area is set based on the current location and the destination (step S31). The search target area is an area that includes all routes that can be reached from the current location to the destination within the desired arrival time.

  Next, it is determined whether or not the processing of steps S33 to S36 has been performed for all branch points existing in the search target area (step S32). If there is an unprocessed branch point (Yes in step S32), the following processing is performed for the unprocessed branch point. That is, the shortest route reaching the destination from the current location as a passing point (hereinafter referred to as the shortest branch route) is searched (step S33). Here, the shortest route is a route having the shortest required time, and the required time to the destination is obtained from, for example, the road width, gradient, or speed limit recorded in the map data D1. Alternatively, the required time may be obtained from VICS (Vehicle Information and Communication System, registered trademark) information in consideration of traffic congestion information on the road.

  Then, the estimated arrival time by the shortest branch path is compared with the desired arrival time acquired in step S1 of FIG. 3 (step S34). If the shortest branch route is before the desired arrival time (Yes in step S34), the shortest branch route is stored in the storage unit 8 as a travelable route (step S35). On the other hand, if the shortest branch path is after the desired arrival time (No in step S34), the branch point to be processed is stored in the storage unit 8 as a non-area target point (step S36).

  After steps S35 and 36, the process returns to step S32 again, and steps S33 to S36 are repeated for all branch points in the search target area, and then the route search process is terminated.

  When the route search process (step S3) in FIG. 3 is completed, the area setting unit 9 next sets a stoppable area and displays the droppable area together with other areas on the display unit 10 as shown in FIG. (Step S4).

  The details of the drop-in area setting process will be described below with reference to FIG. First, the area setting unit 9 acquires a travelable route and a non-area target point from the storage unit 8 (step S41). Then, of the travelable routes, a stopable area is set with the route farthest from the shortest route from the current location to the destination as the outermost periphery (step S42).

  FIG. 6 shows a method of setting an area where a person can drop in from a travelable route. In the drawing, routes R1 to R5 are shown as travelable routes, the route R1 that is the shortest route is indicated by a solid line, the routes R2 and R3 are indicated by a dotted line, and the routes R4 and R5 are indicated by a one-dot chain line. In FIG. 6A, in the region on the right side of the route R1 in the drawing, the route R4 is farther from the route R1 than the route R2. Similarly, in the region on the left side of the route R1, the route R5 is further away from the route R1 than the route R3. Therefore, the area having the outer circumferences of the routes R4 and R5 is set as a drop-in area. FIG. 6B shows an example in which the travelable route farthest from the route R1 is different between the destination side and the current location side of the route R1. In the drawing, in the upper right region of the route R1, the route R2 is further away from the route R1 than the route R4. However, in the lower right region of the route R1, the route R4 is farther from the route R1 than the route R2. Accordingly, in the area on the right side of the route R1, the outer periphery of the area where the person can stop by is set by connecting the regions R2 and R4 farthest from the route R1. The same applies to the region on the left side of the route R1.

  As shown in FIG. 6B, when the travelable route that is farthest from the shortest route differs depending on the location on the shortest route, the multipleest travelable route is the farthest from the shortest route from the current location to the destination. A branch point on the travelable route may be obtained for each place on the shortest route, and the branchable area may be set by connecting these branch points. As a result, the accuracy of the drop-in area is improved.

  Returning to FIG. 5, next, the non-area target points are excluded from the drop-in area (step S43). Here, when the area-excluded point is in the area where it is possible to drop in, the point is excluded from the area where the drop-off is possible. Alternatively, when there are a plurality of non-area target points adjacent to each other in the drop-in area, the area surrounded by these non-area target points may be excluded from the drop-off area. In FIG. 7, the area non-target area is indicated by a cross, and the state surrounded by the adjacent area non-target areas is excluded from the drop-down area.

  Finally, on the display unit 10, the created drop-in area is displayed separately from other areas (step S44). In the example of FIG. 7, the two areas are distinguished by displaying the area other than the drop-in area in a shaded manner. With such a display, the user can intuitively recognize the drop-in area and other areas. In particular, in a navigation device used while driving a vehicle, the present invention is particularly useful because it is necessary to intuitively recognize display contents.

  Returning to FIG. 3, the route search unit 7 then performs an in-area facility search (step S5). Here, the travelable route is acquired from the storage unit 8, the facility existing on the travelable route is searched with reference to the facility information data D2, and the information on the facility is stored in the storage unit 8 as the in-area facility search data. To do.

  Next, the control unit 6 obtains the current location of the vehicle from the current information management unit 3, and determines whether or not the current location is an end portion of a stop-by area (step S6). If the current location is within the drop-in area and within a predetermined distance from the outer periphery of the drop-off area, it is determined that it is the end of the drop-in area (Yes in step S6), and the user is warned through the warning unit 11 (Step S7). The warning unit 11 issues a warning by displaying a warning screen on the display unit 10, for example. Alternatively, a warning may be given by voice from a voice output unit (not shown).

  After step S7, or when the current location is not at the end of the drop-in area in step S6, the current information management unit 3 acquires the current time from the current time acquisition unit 1 (step S8). The current information management unit 3 sends the current time acquired in step S8 to the control unit 6, and the control unit 6 determines whether or not the display update cycle has elapsed since the previous drop-off area was displayed (step S4). (Step S9). If the display update cycle has not elapsed, the process waits while acquiring the current time (step S8) until the display update cycle has elapsed, and when the display update cycle has elapsed (Yes in step S9), the current information management unit 3 Information on the current location of the vehicle is acquired from step 2 (step S10).

  Information on the current location acquired by the current information management unit 3 in step S 10 is sent to the control unit 6. The control unit 6 determines whether the current location matches the destination (step S11). Here, if the current location is within a predetermined distance from the destination, they may be regarded as matching. If the current location does not match the destination, the process returns to step S3, and the drop-in area is updated (step S4). If the current location matches the destination (Yes in step S11), it is determined that the vehicle has arrived at the destination, and the process ends.

<A-3. Facility Search>
The navigation device 100 stores facility search data (in-area facility search data) in the area where the user can drop in in the storage unit 8. By using this, the facility list in the drop-in area may be displayed on the display unit 10 to guide the route to the destination passing through the facility selected by the user from the list. Further, the facility may be selected by displaying a facility icon in the area where the facility can be visited as shown in FIG. 1 and the user touching the icon. As a result, the user can select a facility and drop in within a range that is not delayed from the desired arrival time.

<A-4. Modification>
In FIG. 1, the display example is divided into two areas, the drop-in area and the other areas, but the drop-in area may be divided into a plurality of areas according to the estimated arrival time. For example, in the area where it is possible to drop in, as shown in FIG. 8, the required time is short from the passing point of the margin area A1 including the passing area where the required time is short and the arrival time can be reached with a margin until the desired arrival time. Are displayed separately in the non-margin area A2 including a passing point that is longer and has a margin time until the desired arrival time than the passing point of the margin area A1. As a result, the user can intuitively recognize the margin to the desired arrival time. Further, when the vehicle enters the non-margin area A2, the warning unit 11 may issue a warning. It should be noted that the drop-in area may be displayed in a more detailed manner according to the required time.

  In FIG. 1, both areas are displayed by being displayed in a shaded area other than the area that can be visited, but the areas may be distinguished by other methods. For example, if the drop-in area is displayed in blue and the other areas are displayed in red, the user can easily identify the area intuitively. Further, as described above, when the possible stop area is divided into the margin area A1 and the non-margin area A2, the margin area A1 may be displayed in blue, the non-margin area A2 may be displayed in yellow, and areas other than the stop-over area may be displayed in red. . Furthermore, the area where the person can stop by may be displayed in different colors steplessly according to the time required for the shortest branch path. Thereby, the user can more intuitively recognize the margin to the desired arrival time.

  The display may be distinguished by a method other than color. For example, in the bird view, the areas that can be visited may be distinguished from each other by displaying a level difference between the areas, such as displaying the area where the person can stop by one level higher than the other areas.

  Further, the area where the person can drop in may be color-coded according to the passage cost (charge) of the route, not the required time.

<A-5. Effect>
The map display device according to the present invention includes a route search unit 7 that searches for a plurality of travelable routes that the mobile body can reach from the current location to the destination by the desired arrival time, and the desired arrival time based on the travelable route. Are provided with an area setting unit 9 for setting a stopable area, which is an area that can reach the destination, and a display unit 10 for displaying the map by distinguishing the stopable area from other areas. By displaying the drop-in area, the user can intuitively recognize which point the user can drop in while keeping the desired arrival time at the destination.

  Further, the route search unit 7 searches for the shortest route having the shortest time required to reach the destination through each branch point for a branch point on an arbitrary route from the current location to the destination, and the area setting unit 9 Among the search routes of the route search unit 7, the route closest to the desired arrival time before the expected arrival time is set as the outermost periphery of the area where it can be visited. Therefore, if the user moves along the outermost periphery of the area where the user can drop in, the user can arrive at the destination in accordance with the desired arrival time.

  Alternatively, if the area setting unit 9 sets an area connecting the branch points closest to the desired arrival time before the expected arrival time by the shortest route as the expected arrival time, the area setting unit 9 accurately sets the possible stop area. Can do.

  In addition, the area setting unit 9 excludes the branch point where the estimated arrival time by the shortest route is after the desired arrival time from the drop-in area. Thereby, it is possible to set the drop-off area with high accuracy.

  In addition, the navigation device 100 according to the present invention includes a warning unit 11 that warns that the current location is a point within a drop-in area that is less than a predetermined distance from the outer periphery of the drop-in area. Therefore, the user who has received the warning recognizes that the arrival by the desired arrival time is dangerous and travels so as not to leave the drop-in area so that the user can arrive at the destination by the desired arrival time.

  In addition, the route search unit 7 re-searches the travelable route at a predetermined timing, and the area setting unit 9 resets the stoppable area based on the travelable route re-searched by the route search unit 7. Therefore, the drop-in area is updated as the vehicle moves.

  Further, when an arbitrary place in the drop-in area is selected, the display unit 10 displays a route passing through the selected place among the travelable routes. The user can select a facility and stop by within a range that is not delayed from the desired arrival time.

  Further, if the display unit 10 displays the map by color-coding the area where the person can drop in and other areas, the user can recognize both areas.

  In addition, the area setting unit 9 divides the drop-down area into a plurality of areas according to the estimated arrival time, and the display unit 10 displays the map by distinguishing the drop-down area for each of the plurality of areas. Can be intuitively recognized. Further, if the plurality of areas within the drop-in area are color-coded and displayed on a map, the user can more intuitively recognize the margin to the desired arrival time.

  The display control device of the present invention that performs map display control of the display unit 10 includes a route search unit 7 that searches for a plurality of travelable routes that the mobile body can reach from the current location to the destination by the desired arrival time; Based on the travelable route, an area setting unit 9 for setting a stopable area that is an area that can reach the destination by the desired arrival time, and a display for displaying the stoppable area on the display unit 10 separately from other areas A control unit. By displaying the drop-in area on the display unit 10, the user can intuitively recognize which point he / she can drop in while keeping the desired arrival time at the destination.

  The display control method of the present invention for displaying a map on the display unit 10 includes: (a) a step of searching for a travelable route that can arrive at the destination from the current location of the mobile body by the desired arrival time; b) a step of setting a stopable area that is an area that can reach the destination by the desired arrival time based on the travelable route; and (c) a displayable portion (10) that distinguishes the stopable area from other areas. Displaying. Therefore, the user can intuitively recognize which point the user can stop by while keeping the desired arrival time at the destination.

  In the present invention, the embodiments can be appropriately modified and omitted within the scope of the invention.

  DESCRIPTION OF SYMBOLS 1 Current time acquisition part, 2 GPS signal receiving part, 3 Current information management part, 4 Input part, 5 Destination information management part, 6 Control part, 7 Route search part, 8 Storage part, 9 Area setting part, 10 Display part 11 warning unit, 100 navigation device, D1 map data, D2 facility information data, R1 shortest route, R2, R3, R4, R5 route.

Claims (12)

A route search unit that searches for a plurality of travelable routes that the mobile body can reach from the current location to the destination by the desired arrival time;
Based on the travelable route, an area setting unit that sets a stopable area that is an area that can reach the destination by the desired arrival time;
A display unit for displaying the area where the drop-in is possible and distinguishing it from other areas,
Map display device. The route search unit searches for a shortest route having a shortest required time for reaching a destination through each branch point for a branch point in an arbitrary route from the current location to the destination,
The area setting unit, as a search route of the route search unit, a route that is closest to the desired arrival time before the expected arrival time is the outermost periphery of the stopable area,
The map display device according to claim 1. The route search unit searches for a shortest route having a shortest required time for reaching a destination through each branch point for a branch point in an arbitrary route from the current location to the destination,
The area setting unit sets the area where the planned arrival time by the shortest route before the desired arrival time and the branch point closest to the desired arrival time as the stoppable area,
The map display device according to claim 1. The area setting unit excludes the branch point where the estimated arrival time by the shortest route is after the desired arrival time from the drop-in area,
The map display device according to claim 2 or 3. When the current location is a point in the drop-in area that is less than a predetermined distance from the outer periphery of the drop-off area, further comprising a warning unit that warns that effect,
The map display apparatus in any one of Claims 1-4. The route search unit re-searches the travelable route at a predetermined timing,
The area setting unit resets the drop-off area based on the travelable route re-searched by the route search unit.
The map display apparatus in any one of Claims 1-5. When an arbitrary place in the drop-in area is selected,
The display unit displays a route passing through the selected place among the travelable routes.
The map display apparatus in any one of Claims 1-6. The display unit displays the map by color-coding the area where the person can drop in and the other area,
The map display apparatus in any one of Claims 1-7. The area setting unit divides the drop-in area into a plurality of areas according to the estimated arrival time,
The display unit displays the map by distinguishing the drop-in area for each of the plurality of areas.
The map display apparatus in any one of Claims 1-8. The display unit displays the map by color-coding the area that can be visited by the plurality of areas.
The map display device according to claim 9. A display control device that performs map display control of a display unit,
A route search unit that searches for a plurality of travelable routes that the mobile body can reach from the current location to the destination by the desired arrival time;
Based on the travelable route, an area setting unit that sets a stopable area that is an area that can reach the destination by the desired arrival time;
A display control unit that displays the stopable area on the display unit separately from other areas,
Display control device. A display control method for displaying a map on a display unit,
(A) searching for a travelable route capable of arriving from the current location of the mobile unit to the destination by the desired arrival time;
(B) based on the travelable route, setting a stoppable area that is an area that can reach the destination by the desired arrival time;
(C) including a step of distinguishing the area that can be visited from other areas and displaying the area on the display unit.
Display control method.

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