JP2008249655A - Navigation device, method, program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform route display easy to recognize for a user. <P>SOLUTION: This navigation device 100 is equipped with a search part 101, a display control part 102, and a display part 103. The search part 101 is used to search for a route from a present position to a destination. The control part 102 outputs map information from the present position to the destination used to search for the route by the search part 101 while generating map image information by making a first map image and a second map image into one image, the first map image including the route from the present position to the destination on a prescribed scale and the second map image being on such a scale as to effect detailed display on the periphery of the present position and on the periphery of the destination. The display part 103 is used to display the map information outputted from the control part 102. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a navigation device, a navigation method, a navigation program, and a recording medium. However, the use of the present invention is not limited to the above-described navigation device, navigation method, navigation program, and recording medium.

  Conventionally, in a navigation apparatus, the scale of a map displayed on a display can be switched. For example, a wide area display can be displayed during traveling on an expressway, and a detailed display can be displayed during traveling in an urban area. The scale switching is performed by, for example, a user operation input. In addition, a display screen is divided into a plurality of areas near a branching position such as an intersection, and a wide area map being displayed and a detailed map near the intersection are simultaneously displayed.

  Further, in such a navigation device, in order to change from a detailed display screen where the current position is displayed to a screen displaying a destination, for example, once in a wide area display, along a route to the destination. It is necessary to scroll the screen from the current position to the destination.

  Therefore, a technique has been proposed in which the scale of the map is controlled and a map with a different scale is displayed on the same screen from the current position to the destination so that scrolling by the user is unnecessary (for example, (See Patent Document 1). In addition, a technique has been proposed in which a detailed map around the current position and a wide area map other than around the current position are displayed on the same screen (for example, see Patent Document 2 below).

JP 2000-292190 A JP 2000-193468 A

  However, the above-described technique of Patent Document 1 has an example of a problem that when the distance from the current position to the destination is a long distance, a wide-area map is displayed, and a detailed map near the current position or the destination is not displayed. As mentioned. Moreover, even if the technique of patent document 2 mentioned above does not require the display of the detailed map around the present position, the problem that the detailed map is displayed and the display area of the wide area map is narrowed as an example is given. It is done.

  In order to solve the above-described problems and achieve the object, the navigation device according to the first aspect of the present invention is used for searching a route from a current position to a destination, and for searching for a route by the search unit. Display control means for outputting the map information from the current position to the destination, and display means for displaying the map information output from the display control means, wherein the display control means is provided from the current position to the destination. Generates map screen information in which a first map screen of a predetermined scale including a route and a second map screen of a scale that provides detailed display around the current position and the destination are the same screen. And

  According to a tenth aspect of the present invention, there is provided a navigation method for searching for a route from a current position to a destination, and outputting map information from the current position to the destination used for searching for a route by the search step. And a display step for displaying the map information output by the display control step, wherein the display control step includes a first map of a predetermined scale including a route from the current position to the destination. Map screen information is generated in which the screen and the second map screen with a reduced scale for detailed display around the current position and the destination are generated on the same screen.

  A navigation program according to an invention of claim 11 causes a computer to execute the navigation method according to claim 10.

  According to a twelfth aspect of the present invention, there is provided a recording medium in which the navigation program according to the eleventh aspect is recorded in a computer-readable manner.

  Exemplary embodiments of a navigation device, a navigation method, a navigation program, and a recording medium according to the present invention are explained in detail below with reference to the accompanying drawings.

(Embodiment)
(Functional configuration of navigation device)
A functional configuration of the navigation device according to the embodiment of the present invention will be described. FIG. 1 is a block diagram illustrating an example of a functional configuration of the navigation device according to the embodiment. In FIG. 1, the navigation device 100 includes a search unit 101, a display control unit 102, a display unit 103, a detection unit 104, and a selection unit 105.

  The search unit 101 searches for a route from the current position to the destination. Specifically, the search unit 101 specifies the current position of the mobile body based on GPS information and information from various sensors mounted on the mobile body, and searches for a route to the set destination.

  The display control unit 102 outputs map information from the current position used for the route search by the search unit 101 to the destination. In addition, the display control unit 102 includes a first map screen having a predetermined scale including a route from the current position to the destination, a second map screen having a scale that provides detailed display around the current position and the periphery of the destination. Is generated on the same screen. The first map screen is a wide area map screen displayed in a wide area as compared to the second map screen. The second map screen is a detailed map screen that is displayed in detail compared to the first map screen.

  Therefore, the display control unit 102 generates detailed map screens around the current position and the destination, and generates map screen information that displays a wide-area map screen for other locations (routes). In addition, the map screen information may be generated, for example, when the display screen is updated, the map screen information of the entire display screen may be generated each time, or the second map screen may be displayed on the first map screen. A frame to be fitted may be provided, the second map screen may be fitted into the frame, and the second map screen may be overwritten sequentially.

  The display unit 103 displays the map information output from the display control unit 102. The display part 103 should just be what can display map information, such as a display.

  In the present embodiment, the detection unit 104 is an arbitrary component. The detection unit 104 detects the speed of the moving body. In the configuration including the detection unit 104, the display control unit 102 displays the display ratio between the first map screen region and the second map screen region according to the speed of the moving body detected by the detection unit 104. To change. Specifically, for example, when the speed of the moving body is increased, the display control unit 102 displays a small second map screen that is displayed in detail. On the other hand, when the speed of the moving body increases, the display control unit 102 displays the second map screen in a large size. This configuration is based on the fact that the need to display a detailed map for the user increases as the vehicle runs at a lower speed.

  The display control unit 102 changes the display ratio between the first map screen area and the second map screen area each time the speed detected by the detection unit 104 changes, for example, by 1 km / h. However, when the detected speed reaches a predetermined speed, the display ratio may be changed step by step. Specifically, changing the display rate in stages is, for example, changing the display rate every 20 km / h. Therefore, in this case, a map screen in which the display rate is unchanged is displayed even if the speed changes within each span, such as 0 to 20 km / h, 20 to 40 km / h, and 40 to 60 km / h.

  Further, when the speed detected by the detection unit 104 exceeds a predetermined value, the display control unit 102 generates map screen information on which only the first map screen is displayed, and the speed detected by the detection unit 104 is When the value is equal to or smaller than the predetermined value, map screen information in which the first map screen and the second map screen are the same screen may be generated. In this configuration, the generation of the map screen information on the same screen performed by the display control unit 102 is limited to a case where the moving body is traveling at a speed equal to or lower than a predetermined value. Therefore, for example, when the moving body is traveling at a speed exceeding a predetermined value, only the first map screen which is the wide area map screen is displayed. This configuration is based on the fact that when a mobile object such as an expressway travels at a speed exceeding a predetermined value, it is less necessary for the user to display the second map screen, which is a detailed map screen. .

  Further, the display control unit 102 may generate a change area displayed at the boundary between the first map screen and the second map screen. In the change area, the scale is changed step by step, the boundary line in contact with the first map screen matches the scale of the first map screen, and the boundary line in contact with the second map screen is the second map. Display continuously to match the scale of the screen. For example, when the scale of the first map screen is set to 1 / 50,000 and the scale of the second map screen is set to 1/5000, the scale of the change area is changed in a stepwise manner. Divided into regions, the scale within each region divided into a plurality of regions is scaled down to 1 / 10,000 and scaled down to 1 / 10,000, and gradually from the first map screen to the second map screen. The scale may be increased to At this time, the scale of the boundary line between the change area and the first map screen is the same. Further, the scale of the boundary line between the change area and the second map screen is the same. By such a change area, the route displayed on the first map screen and the route displayed on the second map screen are continuously displayed routes.

  In addition, the display control unit 102 displays a second map screen in which the periphery of the current position is displayed in detail on the current position on the first map screen, and on the destination on the first map screen, You may make it produce | generate the map screen information which displayed the 2nd map screen which displayed the destination periphery in detail. That is, the second map screen showing the current position and the destination on the detailed map screen is displayed on the current position and the destination on the first map screen which is the wide area map screen. The second map screen is made to correspond.

  In addition, when the search unit 101 searches for a route in which a waypoint is set between the current position and the destination by the search unit 101, the display control unit 102 uses the second map screen that displays the route point periphery in detail. The map screen information may be generated. In the present configuration, the vicinity of the waypoint is displayed on the second map screen which is a detailed map screen.

  In the present embodiment, the selection unit 105 is an arbitrary component. The selection unit 105 selects any one of the periphery of the current position, the periphery of the destination, and the periphery of the waypoint displayed on the second map screen. In the configuration including the selection unit 105, the display control unit 102 generates map screen information using the second map screen at any location selected by the selection unit 105. In this configuration, as the second map screen, any one of the vicinity of the current position, the vicinity of the destination, and the vicinity of the waypoint is selectively displayed, and all three places may be displayed. Any one place or two places may be displayed.

  In addition to the operation input from the user, the selection may be made according to the traveling state of the moving body. Selecting according to the traveling state of the moving body means that, for example, when the speed of the moving body is equal to or lower than a predetermined speed, only the second map screen around the current position is selected, or the distance to the destination is predetermined. When there is a distance or more, it is possible to select only the second map screen around the current position.

  In addition, the display control unit 102 determines each area of the second map screen so that the respective areas of the second map screen around the current position, the destination, and the waypoint are not overlapped. Also good. In this configuration, a plurality of second map screen display areas are displayed so as not to overlap each other.

  Further, the display control unit 102 may secure the display area of the route on the first map screen and determine the area of the first map screen and the area of the second map screen. Such a configuration ensures the display of the route displayed on the first map screen even when the second map screen is displayed in a large size, for example.

(Navigation procedure of navigation device)
Next, a navigation processing procedure of the navigation device 100 will be described with reference to FIG. FIG. 2 is a flowchart illustrating an example of a navigation processing procedure of the navigation device according to the embodiment.

  In the flowchart of FIG. 2, the navigation device 100 waits for the start of the route search (step S201: No loop), and when the route search is started (step S201: Yes), the search unit 101 starts from the current position. A route to the ground is searched (step S202).

  Then, the display control unit 102 generates map screen information in which the first map screen and the second map screen are the same screen for the route from the current position to the destination (step S203). The first map screen is a wide-area map screen of a predetermined scale including a route from the current position to the destination. The second map screen is a detailed map screen with a reduced scale that provides detailed display around the current position and around the destination. And the display part 103 displays the map screen information produced | generated by the display control part 102 (step S204), and complete | finishes a series of processes.

  As described above, the navigation device 100 according to the present embodiment includes a first map screen of a predetermined scale including a route from the current position to the destination, and a detailed display about the current position and the vicinity of the destination. A map screen is displayed in which the second map screen of a reduced scale is the same screen. Therefore, according to the navigation device 100 according to the present embodiment, the entire route from the current position to the destination can be displayed on the wide area map screen, and the vicinity of the current position and the vicinity of the destination can be displayed on the detailed map screen. . Thereby, the user can grasp in detail the situation around the current position and the destination, and can grasp the entire route to the destination at a glance.

  In addition, the navigation device 100 according to the present embodiment includes a detection unit 104 that detects the speed of the moving object, and the display control unit 102 responds to the speed of the moving object detected by the detection unit 104. The display ratio between the area of the first map screen and the area of the second map screen may be changed. According to such a configuration, for example, the display area of the detailed map screen is reduced when traveling at high speed, and the display area of the detailed map screen is increased when traveling at low speed. Can do. Therefore, the user can grasp the situation around the current position in detail when traveling at a low speed such as before turning right or left, and grasp the rough current position while traveling on the expressway. be able to.

  Further, in the navigation device 100 according to the present embodiment, when the speed detected by the detection unit 104 exceeds a predetermined value, map screen information on which only the first map screen is displayed is generated, and the detection unit When the speed detected by 104 is equal to or lower than a predetermined value, the display control unit 102 may generate map screen information in which the first map screen and the second map screen are the same screen. . According to such a configuration, when traveling at a speed equal to or higher than a predetermined value, it is possible to display only the first map screen, which is the wide area map screen, without displaying the detailed map screen. Therefore, when traveling at high speed, a screen that allows the user to easily grasp the current position can be displayed.

  Further, in the navigation device 100 according to the present embodiment, the display control unit 102 changes the scale stepwise to the boundary between the first map screen and the second map screen, and the first map. Generate a change area that is continuously displayed so that the boundary line that touches the screen matches the scale of the first map screen, and the boundary line that touches the second map screen matches the scale of the second map screen May be. According to such a configuration, in the change area, the route displayed on the first map screen and the route displayed on the second map screen can be made continuous. Therefore, it is possible to display an easy-to-view map screen for the user.

  Further, in the navigation device 100 according to the present embodiment, the second map screen displaying the vicinity of the current position in detail is displayed on the current position of the first map screen, and the first map screen is displayed. You may make it display the 2nd map screen which displayed the destination periphery in detail on the destination. According to such a structure, it can be set as the display screen with which the 1st map screen and the 2nd map screen matched. Therefore, it is possible to display a map screen that is easy for the user to see.

  Further, in the navigation device 100 according to the present embodiment, the display control unit 102 displays the second route around the route point in detail when the search unit 101 searches for a route for which the route point is set. Map screen information may be generated using a map screen. According to such a configuration, the user can grasp in detail not only the vicinity of the current position and the vicinity of the destination but also the vicinity of the waypoint.

  In addition, the navigation device 100 according to the present embodiment includes a selection unit 105 that selects any one of the vicinity of the current position, the vicinity of the destination, and the vicinity of the waypoint displayed on the second map screen. In this way, the display control unit 102 may generate map screen information using the second map screen at any location selected by the selection unit 105. According to such a configuration, a detailed map screen can be displayed corresponding to the traveling state of the mobile body, and a detailed map screen arbitrarily selected by the user can be displayed. Therefore, the detailed map screen according to the user's needs can be displayed.

  Moreover, in the navigation device 100 according to the present embodiment, the display control unit 102 controls the first map screen so as not to overlap each other on the second map screen around the current position, the destination, and the waypoint. You may make it determine each area | region of 2 map screens. According to such a structure, since each area | region can be determined so that the display area of the 2nd map screen displayed in multiple numbers may not overlap, the map screen which is easy to see for a user can be displayed.

  In the navigation device 100 according to the present embodiment, the display control unit 102 secures a display area of the route of the first map screen, and the first map screen area and the second map screen. May be determined. Therefore, even when the display screen is arbitrarily changed as the moving body moves, the route on the first map screen is always displayed, so that the user can grasp the route overview at a glance. At the same time, it is possible to grasp a detailed map of the current position and the destination on the second map screen.

  Examples of the present invention will be described below. In the present embodiment, an example in which the navigation device 100 of the present invention is implemented by a navigation device mounted on a vehicle will be described.

(Hardware configuration of navigation device 300)
The hardware configuration of the navigation device 300 according to the present embodiment will be described with reference to FIG. FIG. 3 is a block diagram illustrating an example of a hardware configuration of the navigation device according to the present embodiment. In FIG. 3, a navigation device 300 is mounted on a moving body such as a vehicle, and includes a CPU 301, a ROM 302, a RAM 303, a magnetic disk drive 304, a magnetic disk 305, an optical disk drive 306, an optical disk 307, and an audio. An I / F (interface) 308, a speaker 309, an input device 310, a video I / F 311, a display 312, a communication I / F 313, a GPS unit 314, and various sensors 315 are provided. Each component 301 to 315 is connected by a bus 320.

  The CPU 301 governs overall control of the navigation device 300. The ROM 302 stores various programs such as a boot program, a current location calculation program, a route search program, a route guidance program, a voice generation program, a map data display program, an acoustic control program, and a display control program. The RAM 303 is used as a work area for the CPU 301.

  The current location calculation program, for example, calculates the current location of the vehicle (the current location of the navigation device 300) based on output information from a GPS unit 314 and various sensors 315 described later.

  The route search program searches for an optimal route from the departure point to the destination point using map data or the like recorded on a magnetic disk 305 described later. Here, the optimum route is the shortest (or fastest) route to the destination point or the route that best meets the conditions specified by the user. Further, not only the destination point but also a route to a stop point or a rest point may be searched. The searched guidance route is output to the audio I / F 308 and the video I / F 311 via the CPU 301.

  The route guidance program is based on guidance route information searched by executing a route search program, vehicle current location information calculated by executing a current location calculation program, and map data read from the magnetic disk 305. Real-time route guidance information is generated. The generated route guidance information is output to the audio I / F 308 and the video I / F 311 via the CPU 301.

  The voice generation program generates tone and voice information corresponding to the pattern. That is, based on the route guidance information generated by executing the route guidance program, the virtual sound source corresponding to the guidance point is set and the voice guidance information is generated and output to the voice I / F 308 via the CPU 301. .

  The map data display program displays map data recorded on the magnetic disk 305 and the optical disk 307 on the display 312 by the video I / F 311.

  The sound control program causes the sound I / F 308 to determine the sound characteristics of the sound output from the speaker 309, and performs sound output via the speaker 309 according to the determined sound characteristics.

  The display control program reads map data recorded on the magnetic disk 305, and displays a wide-area map screen including a route from the current position to the destination, and a detailed map screen about the current position, the destination, and the route Are output to the display 312 on the same screen.

  The magnetic disk drive 304 controls the reading / writing of the data with respect to the magnetic disk 305 according to control of CPU301. The magnetic disk 305 records data written under the control of the magnetic disk drive 304. As the magnetic disk 305, for example, an HD (hard disk) or an FD (flexible disk) can be used.

  The optical disk drive 306 controls the reading / writing of the data with respect to the optical disk 307 according to control of CPU301. The optical disk 307 is a detachable recording medium from which data is read according to the control of the optical disk drive 306. As the optical disc 307, a writable recording medium can be used. In addition to the optical disk 307, the removable recording medium may be an MO, a memory card, or the like.

  Examples of information recorded on the magnetic disk 305 and the optical disk 307 include map data and function data. Map data has background data that represents features (features) such as buildings, rivers, and the surface of the earth, and road shape data that represents the shape of the road, and is composed of multiple data files divided by district. Has been. This map data is depicted two-dimensionally or three-dimensionally on the display screen of the display 312. When the navigation device 300 is guiding a route, the map data and a vehicle mark indicating the current location of the vehicle acquired by the GPS unit 314 to be described later are displayed in an overlapping manner.

  The road shape data further includes traffic condition data. The traffic condition data includes, for example, the presence or absence of signals and pedestrian crossings for each node, the presence or absence of entrances and functions of highways, the length (distance) for each link, road width, direction of travel, road type (highway, Information on toll roads, general roads, etc.).

  The function data is three-dimensional data representing the shape of the facility on the map, character data representing the description of the facility, and other various data other than the map data. Map data and function data are recorded in blocks divided into districts or functions. Specifically, for example, the map data can be divided into blocks for each area so as to represent a predetermined area in the map displayed on the display screen. For example, the function data can be divided into a plurality of blocks for each function so that each function realizes one function.

  In addition to the above-described three-dimensional data and character data, the function data is data for realizing functions such as program data that realizes navigation, selection of waypoints, calculation of required time, route guidance, and the like. Each of the map data and the function data is composed of a plurality of data files divided for each district or for each function.

  The audio I / F 308 is connected to a speaker 309 for audio output. The speaker 309 outputs sound. Examples of the input device 310 include a remote controller having a plurality of keys for inputting characters, numerical values, and various instructions, a keyboard, a mouse, and a touch panel. The input device 310 may be realized by any one of a remote controller, a keyboard, a mouse, and a touch panel, or may be realized by a plurality of forms.

  The video I / F 311 is connected to the display 312. Specifically, the video I / F 311 includes, for example, a graphic controller that controls the entire display 312, a buffer memory such as a VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the output image data, the display 312 is configured by a control IC or the like.

The display 312 displays icons, cursors, menus, windows, or various data such as characters and images. On the display 312, the above-described map data is drawn two-dimensionally or three-dimensionally. The map data displayed on the display 312 can be displayed with a mark representing the current location of the vehicle on which the navigation device 300 is mounted. The current location of the vehicle is calculated by the CPU 301.

  As this display 312, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted. The display 312 is installed near the dashboard of the vehicle, for example. A plurality of displays 312 may be installed in the vehicle, for example, in the vicinity of the dashboard of the vehicle or in the vicinity of the rear seat of the vehicle.

  The communication I / F 313 is connected to a network via wireless and functions as an interface between the navigation device 300 and the CPU 301. The communication I / F 313 is further connected to a communication network such as the Internet via wireless, and also functions as an interface between the communication network and the CPU 301.

  Communication networks include LANs, WANs, public line networks and mobile phone networks. Specifically, the communication I / F 313 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System) / beacon receiver, a radio navigation device, and other navigation devices. Get road information such as regulations. VICS is a registered trademark.

  The GPS unit 314 receives radio waves from GPS satellites and outputs information indicating the current location of the vehicle. The output information of the GPS unit 314 is used when the current position of the vehicle is calculated by the CPU 301 together with output values of various sensors 315 described later. The information indicating the current location is information for specifying one point on the map data, such as latitude / longitude and altitude.

  The various sensors 315 output information that can determine the position and behavior of the vehicle, such as a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor. The output values of the various sensors 315 are used for the calculation of the current location of the vehicle by the CPU 301 and the measurement of the change in speed and direction.

  The search unit 101, the display control unit 102, the display unit 103, the detection unit 104, and the selection unit 105 included in the navigation device 100 illustrated in FIG. 1 are the ROM 302, the RAM 303, and the navigation unit 300 illustrated in FIG. The CPU 301 executes a predetermined program using programs and data recorded on the magnetic disk 305, the optical disk 307, and the like, and realizes the function by controlling each part in the navigation device 300.

  That is, the navigation device 300 according to the present embodiment executes the route guidance program and the display control program recorded in the ROM 302 as a recording medium in the navigation device 300, thereby providing the functions of the navigation device 100 shown in FIG. The navigation processing procedure shown in FIG. 2 can be executed.

(An example of navigation processing of the navigation device 300)
Next, an example of navigation processing performed by the navigation device 300 according to the present embodiment will be described with reference to FIG. FIG. 4 is a flowchart illustrating an example of the navigation process of the navigation device according to the present embodiment.

  In the flowchart of FIG. 4, the navigation apparatus 300 is in a state where a destination is set and a route to the destination is being guided. The navigation device 300 first detects the speed by the speed sensor (step S401), and determines whether or not the detected speed is equal to or less than a predetermined value (step S402). The predetermined value is set to 80 km / h, for example.

  If it is determined in step S402 that the speed is equal to or lower than the predetermined value (step S402: Yes), map screen information in which a detailed map screen is arranged on the current position of the wide area map screen is generated (step S403). Also, map screen information in which the detailed map screen is arranged on the destination of the wide area map screen is generated (step S404). And the display ratio of the area | region of a wide area map screen and the area | region of a detailed map screen is changed according to the detected speed (step S405). Note that changing the display rate in accordance with the speed changes the display rate every 20 km / h, 40 km / h, and 60 km / h, for example.

  Then, the area of the wide area map screen and the area of the detailed map screen are determined (step S406). In addition, when determining, the display area of the wide area map screen and the detailed map screen is determined so that the display of the route of the wide area map screen is secured, and the detailed map screens around the current position and the destination area are overlapped respectively. Each display area is determined so that there is no. Then, a change area is generated (step S407). Although the details will be described later, the change area is an area where the scale map is changed in stages and the wide area map screen and the detailed map screen are displayed in succession.

  And the map screen information which made the wide area map screen and the detailed map screen the same screen is output to the display 312 (step S408). The display 312 displays the output map screen information (step S409), and the series of processing ends.

  On the other hand, if the detected speed is not less than or equal to the predetermined value in step S402 (step S402: No), that is, if the speed exceeds the predetermined value, only the map screen information of the wide area map screen is output (step S410). The process proceeds to step S409. In this embodiment, the location displayed on the detailed map screen is around the current position and around the destination. However, when a route with a route is set, the route A detailed map screen may also be displayed for the periphery.

(Example of processing when selection of detailed map screen is accepted)
Next, with reference to FIG. 5, an example of processing when a selection of a detailed map screen is accepted in the navigation processing according to the present embodiment will be described. FIG. 5 is a flowchart illustrating an example of a process when a selection of a detailed map screen is received in the navigation process according to the present embodiment.

  In FIG. 5, the navigation device 300 is in a standby state until the selection of the detailed map screen is accepted (step S501: No). The selection of the detailed map screen is received, for example, by receiving an operation input from the user for a place where the user desires to display details among the vicinity of the current position, the waypoints, and the vicinity of the destination.

  When the selection of the detailed map screen is accepted in step S501 (step S501: Yes), the detailed map screen of the selected location is arranged on the wide area map screen (step S502). And the map screen information which made the wide area map screen and the detailed map screen the same screen on the display 312 is produced | generated (step S503). Then, the display 312 displays the generated map screen information (step S504) and ends a series of processes.

  In the present embodiment, the detailed map screen is not displayed for locations that are not selected. In this embodiment, the detailed map screen is selected by an operation input from the user. However, the detailed map screen may be selected according to the traveling state of the moving body. When selecting according to the traveling state of the moving body, for example, when the speed is a predetermined speed (for example, 20 km / h) or less, only the detailed map screen around the current position may be selected. When the distance from the current position to the destination is a predetermined distance (for example, 50 km) or more, only the detailed map screen around the current position may be selected.

(Example of display screen display)
Next, an example of display on the display screen according to the present embodiment will be described with reference to FIG. FIG. 6 is an explanatory diagram illustrating an example of display on the display screen according to the present embodiment. The display screen shown in FIG. 6 is a display screen when the vehicle is traveling at a low speed (for example, 0 to 20 km / h).

  In FIG. 6, the display screen 600 displayed on the display 312 displays a wide area map 610, a detailed map 620 around the current position, and a detailed map 630 around the destination. A change area 640 is displayed at the boundary between the wide area map 610 and the detailed map 620 around the current position. A change area 650 is displayed at the boundary between the wide area map 610 and the detailed map 630 around the destination.

  The wide area map 610 is, for example, a scale of 1 / 2000,000 and is displayed at 2 km per 1 cm. The wide area map 610 displays a route 611 from the current position to the destination.

  The detailed map 620 around the current position and the detailed map 630 around the destination are, for example, a scale of 1 / 5,000 and are displayed at 50 m per 1 cm. The detailed map 620 around the current position and the detailed map 630 around the destination are arranged at positions corresponding to the current position and the destination in the wide area map 610, respectively. A detailed map 620 around the current position displays a current position 621 of the vehicle and a route 622. The detailed map 630 around the destination displays a destination 631 and a route 632.

  The change area 640 is an area in which the scale is gradually changed from 1/2000 to 1/5000 from the wide area map 610 side to the detailed map 620 side around the current position. Specifically, the change area 640 is divided into a plurality of areas from the wide area map 610 toward the detailed map 620 around the current position (X direction). The scale in each region is 1 / 100,000, 1 / 5,000, 1 / 10,000, and 1 / 10,000, and the scale is gradually increased in the X direction. In addition, the scale of the boundary line 641 between the change area 640 and the wide area map 610 is 2 km, which matches the scale of the wide area map 610. Further, the scale of the boundary line 642 between the change area 640 and the detailed map 620 around the current position is 50 m, which matches the scale of the wide area map 610.

  The change area 650 displayed at the boundary between the wide area map 610 and the detailed map 630 around the destination has the same configuration. That is, the change area 650 is divided into a plurality of areas from the wide area map 610 toward the detailed map 630 around the destination (Y direction). The scale in each region is 1 / 100,000, 1 / 5,000, 1 / 10,000, and 1 / 10,000, and the scale is gradually increased in the Y direction. The scale of the boundary line 651 between the change area 650 and the wide area map 610 is 2 km, which is the same as the scale of the wide area map 610. Further, the scale of the boundary line 652 between the change area 650 and the detailed map 630 around the current position is 50 m, which matches the scale of the wide area map 610.

  Therefore, the change area 640 continuously displays the route 611 of the wide area map 610 and the route 622 of the detailed map 620 around the current position. Similarly, the change area 650 continuously displays the route 611 of the wide area map 610 and the route 632 of the detailed map 630 around the destination. Thereby, the route 611 of the wide area map 610, the route 622 of the detailed map 620 around the current position, and the route 632 of the detailed map 630 around the destination are continuous.

  In the present embodiment, the wide area map 610, the detailed map 620 around the current position, and the detailed map 630 around the destination change the display ratio of each display area according to the speed, but the screen shown in FIG. The screen when the detailed map 620 around the position and the detailed map 630 around the destination are displayed in the largest size is shown. Further, the detailed map 620 around the current position and the detailed map 630 around the destination are displayed with their display areas determined at positions where the display area of the route 611 of the wide area map 610 is secured. In addition, the arrangement positions of the detailed map 620 around the current position and the detailed map 630 around the destination are determined so that the display areas do not overlap each other. In addition, any one of the detailed map 620 around the current position and the detailed map 630 around the destination may be selected and displayed.

  Further, when the moving body approaches the destination 631 and the outline 623 of the detailed map 620 around the current position and the outline 633 of the detailed map 630 around the destination touch, that is, the detailed map around the current position. When the 620 and the detailed map 630 around the destination can be displayed on the display screen 600 as one map screen, either the detailed map 620 around the current position or the detailed map 630 around the destination May be displayed on the entire surface of the display screen 600.

(Example of display screen display)
Next, an example of display on the display screen according to the present embodiment will be described with reference to FIG. FIG. 7 is an explanatory diagram illustrating an example of display on the display screen according to the present embodiment. The display screen shown in FIG. 7 is a display screen when the vehicle is traveling at a high speed (60 km to 80 km), for example. In the following description, the description of the same display as in FIG. 6 is omitted as appropriate.

  In FIG. 7, the display screen 700 displayed on the display 312 displays a wide area map 710, a detailed map 720 around the current position, a detailed map 730 around the destination, and change areas 740 and 750. . The wide area map 710 displays a route 711 from the current position to the destination. A detailed map 720 around the current position displays a current position 721 of the vehicle and a route 722. On the detailed map 730 around the destination, a destination 731 and a route 732 are displayed. The route 711 of the wide area map 710, the route 722 of the detailed map 720 around the current position, and the route 732 of the detailed map 730 around the destination are continuous. The change areas 740 and 750 have the same configuration as the change areas 640 and 650 shown in FIG.

  As described above, when traveling at high speed, the detailed map 720 around the current position and the detailed map 730 around the destination are the detailed map 620 around the current position shown in the display screen 600 of FIG. Compared to the detailed map 630 around the destination, the displayed area becomes smaller and the display area of the wide area map 710 becomes larger.

  In the present embodiment, the change in the display ratio between the wide area map 710, the detailed map 720 around the current position, and the detailed map 730 around the destination is not limited to switching between two stages of low speed and high speed, but is displayed in a plurality of stages. Switching may be performed. Specifically, for example, the display ratio of the display area may be changed when the speed reaches 20 km / h or when the speed reaches 40 km / h. That is, the display rate of the detailed map 720 around the current position and the detailed map 730 around the destination is as follows. When the speed reaches 20 km / h, the detailed map 620 around the current position and the details around the destination shown in FIG. The map 630 may be displayed smaller than the map 630, and may be displayed smaller when the speed reaches 40 km / h. In addition, when a predetermined speed (for example, 80 km / h) is exceeded, the detailed map 720 around the current position and the detailed map 730 around the destination are not displayed.

(Example of display screen display)
Next, an example of display on the display screen according to the present embodiment will be described with reference to FIG. FIG. 8 is an explanatory diagram illustrating an example of display on the display screen according to the present embodiment. The display screen shown in FIG. 8 is a screen on which a detailed map around the waypoint is displayed, and shows a display screen when the vehicle is traveling at high speed (60 km / h to 80 km / h).

  In FIG. 8, the display screen 800 displayed on the display 312 includes a wide area map 810, a detailed map around the current position 820, a detailed map around the destination 830, change areas 840 and 850, A detailed map 860 is displayed. The wide area map 810 displays a route 811 from the current position to the destination. A detailed map 820 around the current position displays a current position 821 of the vehicle and a route 822. In the detailed map 830 around the destination, a destination 831 and a route 832 are displayed.

  In the detailed map 860 around the waypoint, a waypoint 861 and a route 862 are displayed. A change area 870 is displayed at the boundary between the detailed map 860 around the waypoint and the wide area map 810. The configuration of the change area 870 is the same as that of the change areas 640 and 650 shown in FIG. The waypoint 861 is a point set by the user when searching for a route. The detailed map 860 around the transit point is, for example, a scale of 1 / 5,000, and is displayed at 50 m per 1 cm. The route 811 of the wide area map 810 and the routes 822, 832, and 862 shown in the detailed maps 820, 830, and 860 are continuous.

  As described above, even when the detailed map 860 around the waypoint is displayed, the display areas of the detailed maps 820, 830, and 860 are displayed in accordance with the speed as in the screens shown in FIGS. Change. Further, each of the detailed maps 820, 830, and 860 secures a display area of the route 811 of the wide area map 810, and the display area is determined. In addition, the arrangement positions of the detailed maps 820, 830, and 860 are determined so that the display areas do not overlap each other. Further, any one of the detailed maps 820, 830, and 860 may be selected and displayed.

  Further, when the moving object approaches the waypoint 861 and the outline 823 of the detailed map 820 around the current position touches the outline 863 of the detailed map 860 around the current place, that is, the detailed map around the current position. When the map 820 and the detailed map around the waypoint 860 can be displayed on the display screen 800 as one map screen, either the detailed map around the current position 820 or the detailed map around the waypoint 860 May be displayed on the entire surface of the display screen 800.

  As described above, the navigation device 300 according to the present embodiment displays a wide area map including a route from the current position to the destination, and a detailed map that displays details about the current position and the vicinity of the destination on the same screen. The map screen is displayed. Therefore, according to the navigation apparatus 300 according to the present embodiment, the entire route from the current position to the destination can be displayed as a wide area map, and the vicinity of the current position and the vicinity of the destination can be displayed as a detailed map. Thereby, the user can grasp in detail the situation around the current position and the destination, and can grasp the entire route to the destination at a glance.

  In addition, the navigation device 300 according to the present embodiment detects the speed of the vehicle, and changes the display ratio between the area of the wide area map and the area of the detailed map according to the detected speed of the moving body. I made it. According to such a configuration, for example, the detailed map display area can be reduced when traveling at high speed, and the detailed map display area can be increased when traveling at low speed. . Therefore, the user can grasp the situation around the current position in detail when traveling at a low speed such as before turning right or left, and grasp the rough current position while traveling on the expressway. be able to.

  Further, the navigation device 300 according to the present embodiment generates map screen information on which only a wide area map is displayed when the detected speed exceeds a predetermined value, and when the detected speed is equal to or less than the predetermined value, the wide area map is displayed. The map screen information which made the map and the detailed map the same screen was generated. According to such a configuration, when traveling at a speed equal to or higher than a predetermined value, only the wide area map can be displayed without displaying the detailed map. Therefore, when traveling at high speed, a screen that allows the user to easily grasp the current position can be displayed.

  Further, the navigation device 300 according to the present embodiment changes the scale stepwise at the boundary between the wide area map and the detailed map, and generates a change area in which the wide area map and the detailed map are continuously displayed. . According to such a configuration, in the change area, the route displayed on the wide area map and the route displayed on the detailed map can be made continuous. Therefore, it is possible to display an easy-to-view map screen for the user.

  Further, the navigation device 300 according to the present embodiment displays a detailed map in which the periphery of the current position is displayed in detail on the current position of the wide area map, and details the vicinity of the destination on the destination of the wide area map. The detailed map displayed in is now displayed. According to such a structure, it can be set as the display screen which matched the wide area map and the detailed map. Therefore, it is possible to display a map screen that is easy for the user to see.

  In addition, the navigation device 300 according to the present embodiment uses a detailed map that displays a route area in detail when searching for a route in which a route point is set between the current position and the destination. The screen information was generated. According to such a configuration, the user can grasp in detail not only the vicinity of the current position and the vicinity of the destination but also the vicinity of the waypoint.

  In addition, the navigation device 300 according to the present embodiment selects any one of the vicinity of the current position, the vicinity of the destination, and the vicinity of the waypoint displayed on the detailed map, and the detailed map of the selected location To generate map screen information. According to such a configuration, it is possible to display a detailed map corresponding to the traveling state of the moving body, or to display a detailed map arbitrarily selected by the user. Therefore, a detailed map according to the user's needs can be displayed.

  In addition, the navigation device 300 according to the present embodiment determines each area of the detailed map so that the areas of the detailed map around the current position, the destination, and the waypoint do not overlap. According to such a configuration, since the areas can be determined so that the display areas of a plurality of detailed maps that are displayed do not overlap each other, a map screen that is easy for the user to view can be displayed.

  In addition, the navigation device 300 according to the present embodiment secures a display area of a route of the wide area map, and determines the area of the wide area map and the area of the detailed map. Therefore, even when the display screen is arbitrarily changed as the vehicle moves, the route of the wide area map is always displayed, so that the user can grasp the route overview at a glance. Further, the user can grasp a detailed map of the current position and the destination from the detailed map.

  As described above, according to the navigation device, the navigation method, the navigation program, and the recording medium of the present invention, the wide area map including the route from the current position to the destination, and the detailed display about the current position and the vicinity of the destination The map screen is displayed on the same screen as the detailed map. Therefore, according to the navigation apparatus 300 according to the present embodiment, the entire route from the current position to the destination can be displayed as a wide area map, and the vicinity of the current position and the vicinity of the destination can be displayed as a detailed map. Thereby, the user can grasp in detail the situation around the current position and the destination, and can grasp the entire route to the destination at a glance.

  The navigation method described in this embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. Further, this program may be a transmission medium that can be distributed via a network such as the Internet.

It is a block diagram which shows an example of a functional structure of the navigation apparatus concerning embodiment. It is a flowchart which shows an example of the navigation processing procedure of the navigation apparatus concerning embodiment. It is a block diagram which shows an example of the hardware constitutions of the navigation apparatus concerning a present Example. It is a flowchart which shows an example of the navigation process of the navigation apparatus concerning a present Example. It is a flowchart which shows an example of a process at the time of receiving selection of a detailed map screen in the navigation process concerning a present Example. It is explanatory drawing which shows an example of the display of the display screen concerning a present Example. It is explanatory drawing which shows an example of the display of the display screen concerning a present Example. It is explanatory drawing which shows an example of the display of the display screen concerning a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Navigation apparatus 101 Search part 102 Display control part 103 Display part 104 Detection part 105 Selection part 300 Navigation apparatus 610 Wide area map 620 Detailed map around current position 630 Detailed map around destination 640 Change area 650 Change area 710 Wide area map 720 Current Detailed map around the location 730 Detailed map around the destination 740 Change area 750 Change area 810 Wide area map 820 Detailed map around the current position 830 Detailed map around the destination 840 Change area 850 Change area 860 Detailed map around the route 870 Change region

Claims (12)

Search means for searching for a route from the current position to the destination;
Display control means for outputting map information from the current position to the destination used for route search by the search means;
Display means for displaying the map information output from the display control means;
With
The display control means includes a first map screen of a predetermined scale including a route from the current position to the destination, and a second map screen of a scale that provides detailed display around the current position and the periphery of the destination. A navigation apparatus characterized by generating map screen information on the same screen. It further comprises detection means for detecting the speed of the moving object,
The display control means changes a display ratio between the area of the first map screen and the area of the second map screen according to the speed of the moving body detected by the detection means. The navigation device according to claim 1.   The display control means generates map screen information for displaying only the first map screen when the speed detected by the detection means exceeds a predetermined value, and the speed detected by the detection means is predetermined. 3. The navigation device according to claim 2, wherein when the value is equal to or less than the value, map screen information is generated in which the first map screen and the second map screen are the same screen. The display control means generates a change area to be displayed at a boundary between the first map screen and the second map screen,
In the change area, the scale is changed stepwise, the boundary line in contact with the first map screen coincides with the scale of the first map screen, and the boundary line in contact with the second map screen is the first map screen. The navigation device according to any one of claims 1 to 3, wherein the navigation device continuously displays the map screen so as to coincide with the scale of the map screen.   The display control means displays the second map screen in detail around the current position on the current position of the first map screen, and on the destination of the first map screen, 5. The navigation device according to claim 1, further comprising: generating map screen information on which the second map screen displaying a destination periphery in detail is displayed.   The display control means uses the second map screen that displays the route area in detail when the route where the waypoint is set between the current position and the destination is searched by the search means. The navigation device according to any one of claims 1 to 5, wherein the map screen information is generated. A selection means for selecting any one of the periphery of the current position, the periphery of the destination, and the periphery of the waypoint displayed on the second map screen;
The navigation apparatus according to claim 6, wherein the display control unit generates the map screen information using the second map screen at any location selected by the selection unit.   The display control unit determines each area of the second map screen so that the areas of the second map screen around the current position, the destination, and the waypoint are not overlapped. The navigation device according to claim 6 or 7.   The display control means secures a display area of a route of the first map screen and determines an area of the first map screen and an area of the second map screen. Item 9. The navigation device according to any one of Items 1 to 8. A search process for searching for a route from the current position to the destination;
A display control step for outputting map information from a current position to a destination used for searching for a route by the search step;
A display step of displaying the map information output by the display control step;
Including
The display control step includes a first map screen having a predetermined scale including a route from the current position to the destination, and a second map screen having a scale that provides detailed display around the current position and the periphery of the destination. A navigation method characterized by generating map screen information on the same screen.   A navigation program for causing a computer to execute the navigation method according to claim 10.   12. A computer-readable recording medium on which the navigation program according to claim 11 is recorded.

Images