JP2007240365A - Navigation device, navigation method, navigation program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate troublesome operations by searching corresponding marks from the decision of user and a menu. <P>SOLUTION: At first, a detection part 103 detects moving information, indicating a moving state of a moving object. Next, an extraction part 104 extracts an arbitrary moving destination candidate point from among the moving destination points existing in the neighborhood of the moving object, or on the moving route of the moving object, on the basis of the moving information detected by the detection part 103. Next, a display control part 105 controls a display screen so as to display to superpose the information expressing the moving information destination candidate point extracted by the extraction part 104 on a map. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a navigation device, a navigation method, a navigation program, and a computer-readable recording medium for guiding peripheral information to a user by displaying notation information on a map. However, use of the present invention is not limited to the above-described navigation device, navigation method, navigation program, and recording medium.

  Conventionally, for example, there is a navigation device that supports a user's movement by displaying a map around the current position of the vehicle in accordance with the movement of the vehicle. In addition, when facilities such as landmarks around the current position of the vehicle are within a predetermined range such as the range of the map displayed on the display screen, the notation information indicating the location of the facility is displayed on the map. There is also a navigation device that displays the corresponding position.

  Conventionally, for example, there is a navigation device that expresses how a user has traveled on a road network in the past by using landmarks. In this navigation device, landmarks are displayed for the purpose of displaying route change information and traveling tracks (see, for example, Patent Document 1 below).

JP 2004-69653 A

  However, in the conventional techniques including the above-described Patent Document 1, the display information of the facilities existing within a predetermined range is displayed regardless of the situation of the user who is in the vehicle. As an example, there is a problem that information is not always useful to the user, and in some cases, it may cause annoyance such as difficulty in viewing a map.

  In addition, in the conventional technology, even if notation information useful for the user is displayed, unnecessary notation information is also displayed at the same time, so that the user is useful for himself from all the notation information displayed. An example is the problem that the notation information has to be searched and is troublesome. Furthermore, when a lot of information is displayed on a limited display screen such as a navigation device, the user stares at the display screen to find the information he wants to see, which causes troubles in driving. Is given as an example.

  The navigation device according to the first aspect of the present invention includes a detection unit that detects movement information indicating a movement state of the moving body, and the vicinity of the moving body or the moving body based on the movement information detected by the detection unit. An extraction unit for extracting an arbitrary destination candidate point from destination candidate points existing on the movement route, and display information representing the destination candidate point extracted by the extraction unit are displayed so as to be superimposed on the map. Display control means for controlling the screen.

  According to a sixth aspect of the present invention, there is provided a navigation method for detecting movement information indicating a movement state of a moving body, and the vicinity of the moving body or the moving body based on the movement information detected by the detecting step. An extraction step of extracting an arbitrary destination candidate point from among destination candidate points existing on the movement route of the destination, and notation information representing the destination candidate point extracted by the extraction step so as to be superimposed on the map And a display control step for controlling the display screen.

  A navigation program according to a seventh aspect of the invention causes a computer to execute the navigation method according to the sixth aspect.

  A computer-readable recording medium according to an eighth aspect of the invention records the navigation program according to the seventh aspect.

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

  FIG. 1 is a block diagram showing a functional configuration of a navigation device according to an embodiment of the present invention. The navigation device of this embodiment includes a storage unit 101, a display unit 102, a detection unit 103, an extraction unit 104, a display control unit 105, and a setting unit 106.

  The storage unit 101 stores various data such as map data. Here, the map data is data for displaying a map on a display screen provided in the display unit 102. The map data includes road network data composed of nodes and links, and image data drawn using features relating to facilities, roads, and other terrain (mountains, rivers, land). Further, the map data includes information indicating a point where the facility exists, character information indicating the name and address of the facility, image information of the facility, and the like.

  The detection unit 103 detects movement information indicating the movement status of the moving object. Here, the moving body is an object that can travel with movement of a place, for example, a vehicle or a ship. Specifically, the continuous travel time or continuous travel distance in which the moving body travels continuously, the remaining amount of fuel, the current time, and the like are detected as travel information indicating the travel status. In addition, the moving body may include a person who moves by walking. In this case, the walking time or walking distance when the person continuously moves can be used as the movement information.

  For example, it is possible to make a continuous travel of the mobile body from a point where the mobile body starts traveling, that is, from a point where it stopped last time to a point where it next stopped. In this case, the time required from the point where the moving body stopped last time to the next stopping point is the continuous running time, and the distance traveled from the point where the moving body stopped last time to the next stopping point is the continuous running time. Distance.

  Specifically, for example, when the moving body is a vehicle, it is determined whether or not the vehicle has stopped based on whether or not the handbrake is operated and whether or not the vehicle door (driver's seat door) is opened. can do. Further, for example, it is possible to determine whether or not the vehicle has stopped by using the GPS so that the current position of the vehicle does not move for a certain period of time.

  The remaining amount of fuel is the remaining amount of fuel that becomes energy consumed as the moving body moves. Specifically, for example, when the moving body is a vehicle, the detection unit 103 detects the remaining amount of gasoline. Note that the remaining amount of fuel may be detected by measuring the amount of fuel actually remaining, or by detecting the calculated remaining amount calculated by measuring the amount of fuel consumed. Good.

  Based on the movement information detected by the detection unit 103, the extraction unit 104 extracts an arbitrary movement destination candidate point from among movement destination candidate points in the vicinity of the moving body or on the movement path of the moving body. . Here, the destination candidate point is a point where there is a facility where the mobile object can be used. The facility that can be used by the moving body is, for example, a facility that can stop the vehicle when the moving body is a vehicle, that is, a facility that includes a parking lot. Specifically, a restaurant, a gas station, etc. are mentioned, for example. The facility provided with the parking lot may be only the parking lot.

  Further, the vicinity of the moving body is within a predetermined range based on the current position of the moving body, including the current position of the moving body. For example, the vicinity of the moving body may be an arbitrary value such as “within a radius of 100 m centered on the current position of the moving body”, “within 500 m along the route the moving body is currently traveling and forward in the traveling direction” Can be set in the range. Further, depending on the scale of the map displayed on the display screen, for example, the range of the map displayed on the display screen may be the vicinity of the moving object.

  The moving path of the moving body is a path along which the moving body is traveling. The moving path of the moving body may be a path extending forward in the traveling direction of the moving body among the paths on which the moving body is traveling. In addition, when the destination point or waypoint of the mobile object is set, the moving route of the mobile object may be a route to the destination point or waypoint.

  Further, the extraction unit 104 may extract one destination candidate point from among destination candidate points in the vicinity of the moving body or on the moving path of the moving body, or may select a plurality of destination candidate points. It may be extracted. When a plurality of destination candidate points are extracted, for example, an upper limit may be set on the number of destination candidate points to be extracted, such as “five”. Thereby, even when a plurality of destination candidates are extracted, it is possible to avoid an excessive number of destination candidates being extracted.

  For example, if the detection unit 103 detects the above-described continuous travel time, the extraction unit 104 determines that the destination candidate point where there is a resting facility when the detected continuous travel time reaches a predetermined time. To extract. In addition, for example, when the current time is detected by the detection unit 103 and this current time is noon, the extraction unit 104 selects a destination candidate point where a facility such as a restaurant exists according to the detected current time. To extract. In addition, for example, when the remaining amount of fuel in the moving body is detected and the remaining amount of fuel is less than a predetermined amount, the extraction unit 104 moves the moving destination candidate where there is a facility capable of refueling the moving body. Extract points.

  The display control unit 105 controls the display screen so that a map in which the notation information representing the destination candidate point extracted by the extraction unit 104 is superimposed on the display screen included in the display unit 104 described above is displayed. The notation information may be superimposed only on the destination candidate point on the map displayed on the display screen, or may be superimposed on a certain range of region including the periphery of the destination candidate point.

  This notation information can also be an icon, for example. For example, when the destination candidate point is a restaurant, an icon representing a restaurant can be displayed. When the destination candidate point is a gas station, an icon representing a gas station can be displayed. In this way, an icon that symbolically represents a destination candidate point can be displayed as notation information.

  The setting unit 106 sets the extraction condition for the destination candidate point. When the extraction condition is set by the setting unit 106, the extraction unit 104 extracts a destination candidate point based on the set extraction condition. As the extraction condition, for example, in the case of a break or a meal, the extraction condition can be limited to the chain store preferred by the user. Moreover, in the case of a gas station, it can be set as extraction conditions to limit to the gas station with which the user has a card contract.

(Navigation procedure of navigation device)
Next, a navigation processing procedure of the navigation device according to the embodiment of the present invention will be described. FIG. 2 is a flowchart showing a navigation processing procedure of the navigation device according to the embodiment of the present invention. First, the detection unit 103 waits until movement information indicating the movement state of the moving object is detected (step S201: No).

  When the movement information is detected by the detection unit 103 in step S201 (step S201: Yes), based on the detected movement information, a moving destination candidate that exists in the vicinity of the moving body or on the moving path of the moving body. An arbitrary destination candidate point is extracted from the points by the extraction unit 104 (step S202).

  Then, the display screen is controlled by the display control unit 105, and the notation information representing the destination candidate point extracted by the extraction unit 104 in step S202 is superimposed and displayed on the map (step S203), and the series of processing ends. .

  As described above, according to the navigation device of the embodiment, it is possible to superimpose and display the notation information representing the destination candidate point extracted according to the moving state of the moving object. Therefore, the navigation device can display only the notation information of the facility that is useful for the user according to the moving state of the moving body on the display screen together with the map. As a result, the user can easily and safely know the existence and location of useful facilities.

  Further, according to the navigation device of the embodiment, when the continuous travel time in which the mobile body travels continuously reaches a predetermined time, the notation information indicating the destination candidate point where a resting facility exists is provided. Can be displayed superimposed on the map. Therefore, the navigation apparatus can display only the notation information of the facility that can reduce the fatigue of the user according to the moving state of the moving body on the display screen together with the map. As a result, the user can easily and safely know the existence and location of a facility that can reduce fatigue caused by traveling.

  In addition, according to the navigation device of the embodiment, only the facility notation information corresponding to the current time is selected from the facility notation information that can be used in association with an action that has a time range that is a guide for use. Can be superimposed on the map. Therefore, the navigation device can superimpose and display only the notation information of facilities that are highly likely to be used, such as meals, according to the current time. Thereby, even if the user is not always aware of the time, the user can easily and safely know the optimum facility according to the time at an appropriate timing.

  Further, according to the navigation device of the embodiment, when the remaining amount of fuel in the moving body becomes less than a predetermined amount, the notation information indicating the destination candidate point where the fuel can be supplied to the moving body is displayed on the map. Can be displayed in a superimposed manner. Therefore, the navigation apparatus can display only the notation information of the facility where the mobile body can be refueled on the display screen together with the map at an appropriate timing. Thus, the user can easily and safely know the existence and location of the facility where fuel can be supplied without worrying about fuel shortage at an appropriate timing.

  Further, according to the navigation device of the embodiment, by setting the extraction condition of the destination candidate point, for example, it can be customized according to the usage status or preference of the user. Therefore, the navigation can superimpose and display the notation information of the facility suitable for each user on the map. As a result, the user can easily and safely know the optimum facility suitable for his or her usage pattern at the optimum timing.

(Hardware configuration of navigation device)
FIG. 3 is a block diagram illustrating a hardware configuration of the navigation apparatus. In this example, the navigation device according to the above-described embodiment is applied to a navigation device mounted on a vehicle as a moving body. First, the hardware configuration of the navigation device of the embodiment will be described with reference to FIG.

  As shown in FIG. 3, the navigation apparatus of the embodiment includes a CPU 301, a ROM 302, a RAM (memory) 303, a magnetic disk drive 304, a magnetic disk 305, an optical disk drive 306, an optical disk 307, an audio I / O. F (interface) 308, microphone 309, speaker 310, input device 311, video I / F 312, camera 313, display 314, communication I / F 315, GPS unit 316, various sensors 317, It has. In addition, the constituent units 301 to 317 are connected to each other by a bus 320.

  First, the CPU 301 governs overall control of the navigation device. The ROM 302 records programs such as a boot program and a navigation program. The RAM 303 is used as a work area for the CPU 301.

  Here, the navigation program is executed by the CPU 301 to detect movement information indicating the movement state of the vehicle, and based on this movement information, exists in the vicinity of the moving body or on the moving path of the moving body. This is a program for controlling a display screen so as to extract an arbitrary destination candidate point from destination candidate points and to superimpose and display notation information representing the destination candidate points on a map.

  Further, the navigation program is executed by the CPU 301 to detect, as movement information, the continuous travel time, the current time, and the remaining amount of fuel in the mobile body as the travel information. If the current time is detected, the destination candidate point corresponding to the current time is detected, and if the remaining amount is less than the predetermined amount, the mobile object This is a program for extracting destination candidate points where fuel can be refueled.

  Furthermore, the navigation program is a program that is executed by the CPU 301 to set extraction conditions for destination candidates and to extract destination candidates based on the set extraction conditions.

  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.

  Another example of information recorded on the magnetic disk 305 or the optical disk 307 is map data used for route search / route guidance. The map data includes background data representing features (features) such as buildings, rivers, and the ground surface, and road shape data representing the shape of the road. The map data can be displayed two-dimensionally or three-dimensionally on the display screen of the display 314. Drawn. When the navigation device is guiding a route, the map data and the current position of the vehicle acquired by the CPU 301 are displayed in an overlapping manner.

  The audio I / F 308 is connected to a microphone 309 for audio input and a speaker 310 for audio output. The sound received by the microphone 309 is A / D converted in the sound I / F 308. In addition, sound is output from the speaker 310. Note that the sound input from the microphone 309 can be recorded on the magnetic disk 305 or the optical disk 307 as sound data.

  Examples of the input device 311 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, a keyboard, a mouse, a touch panel, and the like. Further, the input device 311 can be connected to another information processing terminal such as a digital camera or a mobile phone terminal to input / output data.

  The video I / F 312 is connected to a camera 313 for video input and a display 314 for video output. Specifically, the video I / F 312 includes, for example, a graphic controller that controls the entire display 314, 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 314 is configured by a control IC or the like.

  The camera 313 captures images inside and outside the vehicle 330 and outputs them as image data. An image captured by the camera 313 can be recorded on the magnetic disk 305 or the optical disk 307 as image data. The display 314 displays icons, cursors, menus, windows, or various data such as characters and images. As the display 314, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.

  The communication I / F 315 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 315 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 315 is configured by, for example, an FM tuner, a VICS / beacon receiver, a wireless navigation device, and other navigation devices. get. VICS is a registered trademark.

  Further, the communication I / F 315 may be connectable to an in-vehicle network installed inside the vehicle. Then, the communication I / F 315 may acquire various types of vehicle information (information such as speed, engine speed, fuel consumption, and remaining fuel) via a connected in-vehicle network.

  The GPS unit 316 receives radio waves from GPS satellites and outputs information related to the position of the vehicle on which the navigation device 300 is mounted. The output information of the GPS unit 316 is used when the CPU 301 calculates the current position of the vehicle together with output values of various sensors 317 described later. The information indicating the current position is information for specifying one point on the map data, such as latitude / longitude and altitude.

  The various sensors 317 output information for determining 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 317 are used by the CPU 301 to calculate the current position of the vehicle and to measure the amount of change in speed and direction.

  Although illustration and description are omitted, the navigation device may include a configuration that realizes various functions such as reproduction of a DVD or CD, reception / recording of a television broadcast, in addition to the above-described configurations 301 to 317. Good.

  The functions of each unit included in the navigation device shown in FIG. 1 are as follows. The CPU 301 uses a program and data recorded in the ROM 302, RAM 303, magnetic disk 305, optical disc 307, etc. in the navigation device shown in FIG. It implement | achieves by performing and controlling each part in the navigation apparatus 300. FIG.

  Next, functions realized by the navigation device of the embodiment will be described. In this embodiment, the navigation device displays a map for guiding normal roads and terrain on the display 314, and continuously or periodically detects the continuous operation time and the remaining amount of gasoline. In the embodiment, continuous operation time calculated using GPS information, gyro information, and vehicle information detected by the GPS unit 316 or various sensors 317 is detected.

  Then, the navigation device compares the detected continuous operation time with a predetermined time set in advance, and determines whether or not the continuous operation time has reached the predetermined time. Here, the predetermined time is a time that is a guideline for fatigue or a decrease in attention when the vehicle is continuously driven, and is set to, for example, “2 hours”. The predetermined time can be arbitrarily set by the manufacturer or user of the navigation device.

  When the continuous operation time reaches a predetermined time, the navigation device superimposes icons of facilities that can be used as rest areas, such as toilets and family restaurants, on the map displayed on the display 314.

  Further, the navigation device compares the detected remaining amount of gasoline with a preset predetermined gasoline amount, and determines whether or not the detected remaining amount of gasoline is less than the predetermined gasoline amount. Here, the predetermined gasoline amount can be calculated based on, for example, a distance that can be traveled when the vehicle travels at a speed of 50 km / h. For example, the travelable distance is “less than 100 km”. Such as the amount of gasoline.

  When the detected remaining amount of gasoline becomes less than a predetermined amount of gasoline, the navigation device displays a gas station icon superimposed on the map displayed on the display 314. Here, a specific gas station is displayed with priority over other gas stations, for example, by flagging information about a specific gas station, such as a gas station that is a cardholder to whom a discount is applied. You may make it make it.

  In the embodiment, the navigation device may detect the current time constantly or periodically. When the detected current time is within a time range corresponding to lunch time, such as “12:00 to 13:00”, the navigation device has a meal on the map displayed on the display 314. The icon of the facility that can be displayed is superimposed. Here, for example, when a chain store that is frequently used by the user can be identified based on a past stop history, the specific chain store may be displayed preferentially.

  As described above, according to the navigation device of the embodiment, it is possible to take a break or refuel with a timing that is suitable for taking a break or refueling without being aware of the timing of taking a break or refueling. The user can be informed that a break or refueling is necessary.

  Note that a sound such as “ping pong” may be output at the timing when the icon is superimposed and displayed. Accordingly, it is possible to notify the driver that the display content on the display 314 has changed, and to more effectively inform the user that there is a need for a break or refueling.

  FIG. 4 is an explanatory diagram illustrating a display screen of the navigation device. A screen 400 is a map displayed on the display of the navigation device. The screen 400 displays a surrounding map and the current position of the vehicle when the navigation device is activated. Specifically, the current position 410, road 420, and landmark 430 are displayed on the screen 400.

  Current position 410 is the current position of the vehicle on which the navigation device is mounted. A road 420 is a road passing on a map displayed on the screen 400. The landmark 430 indicates a target point located on the map displayed on the screen 400. The landmark 430 can be, for example, a famous place or a conspicuous place, and is used to check the surrounding situation when the user actually looks outside the screen 400. Therefore, it is displayed regardless of the user's situation. Before the icon indicating the destination candidate point according to the user's situation is displayed, the icon is displayed on the screen 400 as shown in FIG.

  FIG. 5 is an explanatory diagram for explaining a display screen of the navigation device when an icon representing a destination candidate point is displayed. As shown in FIG. 4, the current position 410, the road 420, and the landmark 430 are displayed on the screen 400. Here, for example, assuming that the break point is set to be displayed when the continuous driving time reaches 2 hours, an example will be described in which the driving time exceeds 2 hours.

  Since the continuous operation time has exceeded 2 hours, a break point is displayed on the screen. In FIG. 5, notation information representing a point 510 where a toilet is present and a point 520 where a restaurant is present is displayed as a resting point. In this way, by displaying the notation information indicating the point 510 and the point 520 on the screen 400, for example, before a situation where the vehicle cannot stop at an arbitrary timing because a moving route to enter the expressway is set thereafter. In addition, the user can take a break early using a toilet or a restaurant. Note that the notation information in a range that cannot be displayed on the display 314 can be displayed by scrolling the map.

  As another situation, when searching for a toilet or a restaurant after it is needed, it is assumed that the target facility cannot be found immediately. However, notation information indicating the points 510 and 520 on the screen 400 is assumed. By displaying, it is possible to guide the existence of resting facilities such as toilets and restaurants as soon as possible, and the user should take a break early while it is easy to use the toilets and restaurants. Can do.

  The navigation apparatus can also display the recommended notation information 530. As a specific example of displaying the recommended spot 530, for example, it is assumed that the user does not notice the change only by increasing the notation information of the destination candidate spot displayed on the screen 400, but the screen 400 By displaying the recommended notation information 530 indicating that a break is to be taken in a predetermined area such as the lower right of the user, it is possible to more effectively guide the user that it is time to take a break. .

  Although description is omitted, the points 510 and 520 in FIG. 5 are not limited to points where facilities that can take a break such as a toilet or a restaurant exist. For example, a gas station may be used. In this case, an example in which the navigation apparatus displays a gas station when the remaining amount of gasoline becomes less than a predetermined amount will be described. Since the remaining amount of gasoline is less than the predetermined amount, notation information representing the points 510 and 520 where the gas station is present is displayed. Thereby, the user can replenish gasoline before it runs out.

  Further, by displaying recommended notation information 530 indicating that gasoline should be replenished in a predetermined area such as the lower right of the screen 400, it is more effective for the user that it is time to replenish gasoline. Can be guided to.

  Similarly, although explanation is omitted, the points 510 and 520 in FIG. 5 may be appropriately displayed according to the current time. Here, the case where the meal time is set to 12:00 will be specifically described. In this case, the navigation device displays notation information indicating the point 510 and the point 520 where the restaurant exists at the timing of 12:00.

  Thereby, the user can search for a restaurant before actually becoming hungry, and can avoid a situation in which driving cannot be interrupted or a restaurant is not searched for in the vicinity. In addition, by displaying the recommended notation information 530, it is possible to more effectively guide the user about the timing of meals.

  FIG. 6 is a block diagram illustrating calculation processing up to icon display. When urging a break according to the continuous running time, GPS information 601 or vehicle information 602 is acquired. The GPS information 601 is acquired from the GPS unit 316, and the vehicle information 602 is acquired from various sensors 317. Instead of the GPS information 601, gyro data can be obtained from a gyro sensor which is one of various sensors 317 and used. And continuous operation time 603 is calculated | required from such information. Then, referring to the continuous operation time 603, when a break is necessary, the target icon 610 is specified and displayed on the screen 400.

  In the case of prompting fuel supply according to the remaining amount of gasoline, GPS information 601 or remaining fuel information 604 is acquired. The remaining fuel information 602 is acquired from various sensors 317. And the remaining fuel 605 is calculated | required from these information. If the remaining fuel 605 is below a certain amount, the target icon 610 is specified and displayed on the screen 400. In the case of a screen display prompting meals, the current time 606 is referred to. When the current time 606 is the set meal time, the target icon 610 is specified and displayed on the screen 400.

  FIG. 7 is a flowchart for explaining display control processing by the navigation device according to this embodiment. First, GPS information 601 and vehicle information 602 are detected (step S701). Next, continuous operation time 603 is calculated from the detected GPS information 601 and vehicle information 602 (step S702). Specifically, the duration of the driving time is obtained from the change in the current position of the moving object indicated by the GPS information 601, and the continuous driving time is obtained. Alternatively, the duration of the operation time is obtained from the displacement state of the moving body indicated by the vehicle information 602, and the continuous operation time is obtained.

  Next, it is determined whether or not the continuous operation time 603 has reached the set time (step S703). This set time can be set in advance, or the initial setting location can be used as it is. For example, the initial set value may be 3 hours. When the set time has not been reached (step S703: No), the process proceeds to step S705. When the set time has been reached (step S703: Yes), a break point icon is displayed (step S704). That is, since the continuous operation time 603 has reached the set time, a display prompting to take a break and a place where the break can be taken are indicated on the map using an icon indicating the break place.

  Next, the remaining fuel 605 is detected (step S705). Then, the remaining fuel 605 is detected to determine whether or not the remaining amount is small (step S706). When it is not determined that the remaining amount is small (step S706: No), the process proceeds to step S708. When it is determined that the remaining amount is small (step S706: Yes), a gas station icon is displayed (step S707).

  Next, it is determined whether or not the current time 606 is a set time (step S708). If the current time 606 is not the set time (step S708: No), the series of processes is terminated. If the current time 606 is the set time (step S708: Yes), a meal location icon is displayed (step S709). Then, a series of processing ends.

  As described above, according to the navigation device of the embodiment, when the continuous travel time in which the vehicle continuously travels reaches a predetermined time, the notation information indicating the destination candidate point where a resting facility exists. Can be displayed on the display 314 together with the map so that only the facility information that can reduce the fatigue of the user according to the movement state (running state) of the vehicle can be displayed on the map. As a result, the user can easily and safely know the existence and location of a facility that can reduce fatigue caused by traveling.

  In addition, according to the navigation device of the embodiment, from the notation information of the facility that can be used in association with an action for which there is a time range that is a guide for use, within a specific time range such as lunch. Only the notation information of facilities that are highly likely to be used in can be displayed superimposed on the map. Thereby, even if the user is not always aware of the time, the user can easily and safely know the optimum facility according to the time at an appropriate timing.

  Further, according to the navigation device of the embodiment, when the remaining amount of gasoline in the vehicle becomes less than the predetermined amount, only the notation information representing the gas station is displayed on the display 314 together with the map at an appropriate timing. Can do. As a result, the user can easily and safely know the existence and location of the gas station at an appropriate timing without worrying about the shortage of gasoline.

  In the embodiment, the destination candidate point is guided to the user using the notation information. However, the present invention is not limited to this. In addition to or instead of the notation information, the destination candidate point may be guided using voice or other transmission means. Specifically, for example, recommendation is guided by voice. In this case, a desired place can be confirmed by voice without confirming the notation information on the display 314 during driving.

  Furthermore, as another example, when the vehicle continues to travel without stopping for a predetermined time (for example, 5 minutes or more) at the destination, a parking lot icon near the destination may be displayed. Specifically, timing may be started after reaching a position within a predetermined distance from the destination, and a parking lot around the destination may be indicated by an icon when 5 minutes have elapsed.

  This makes it possible to inform the driver of the location of the parking lot without requiring any operation when the parking lot is not found around the destination, and also allows the vehicle to be parked immediately without searching for the parking lot. In such a case, unnecessary screen display can be avoided. In addition to displaying the screen, a parking lot icon may be displayed on the screen and the parking lot may be guided by voice. Thereby, it is possible to clearly inform the driver of the position of the parking lot by both the screen display and sound.

  Moreover, although the example which displays the icon of a resting facility when the continuous driving time was 2 hours or more was described in the above-described embodiment, in addition to this, the vehicle or the user may be a vehicle for the physically disabled. It is also possible to acquire information and display a resting facility equipped with facilities that can be used by disabled people. In this way, when a disabled person is on board, by displaying preferentially the destination candidate point where a resting facility equipped with facilities that can be used by the disabled person is present, the movement suitable for the passenger Candidate points can be displayed.

  In the above-described embodiment, the example in which the gas station icon is displayed when the remaining fuel is detected and the fuel is low has been described. However, when the air pressure of the vehicle tire is detected and the air pressure is low, for example, gasoline You may make it display the icon of the facility which can adjust the tire pressure of a vehicle like a stand. Thus, the user can quickly adjust the air pressure of the vehicle tire without requiring the troublesome work of searching for a facility that can adjust the air pressure of the vehicle tire.

  As described above, by predicting the facilities that the user needs and displaying the notation information, it is possible to easily find the facilities that the user wants to use on the map without performing the operation of searching for the facilities that the user wants to use. Can do.

  Specifically, when the continuous running time exceeds the time requiring a break, the user is prompted to take a break and the place where the break can be made is clearly indicated to the user. Therefore, even if you are not driving with the intention of taking a break, you can realize that a break is necessary when you have traveled for a certain period of time, and you can follow the display screen to find a break place without having to search for a break place. I can head.

  Further, even when the fuel is in a shortage state, the user can be prompted to refuel without having to search for the user's own operation, and can head for the gas station according to the display screen. In addition, even when it is time to eat, the user can be encouraged to eat and can go to the eating place without requiring an operation of searching for the eating place.

  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. The program may be a transmission medium that can be distributed via a network such as the Internet.

It is a block diagram which shows the functional structure of the navigation apparatus concerning embodiment of this invention. It is a flowchart which shows the process of the navigation method concerning embodiment of this invention. It is a block diagram which shows the hardware constitutions of a navigation apparatus. It is explanatory drawing explaining the display screen of a navigation apparatus. It is explanatory drawing explaining the display screen of a navigation apparatus when the icon showing a movement destination candidate point is displayed. It is a block diagram explaining the flow of data until it displays an icon. It is a flowchart explaining the display control processing by the navigation apparatus concerning this Example.

Explanation of symbols

103 Detection unit 104 Extraction unit 105 Display control unit 106 Setting unit

Claims (8)

Detection means for detecting movement information indicating the movement status of the moving object;
Based on the movement information detected by the detection means, an extraction means for extracting an arbitrary destination candidate point from the destination candidate points existing in the vicinity of the moving body or on the moving path of the moving body;
Display control means for controlling a display screen so as to superimpose and display notation information representing a destination candidate point extracted by the extraction means;
A navigation device comprising: The detection means detects, as the movement information, continuous running time in which the moving body has run continuously,
The navigation device according to claim 1, wherein the extraction unit extracts a destination candidate point where a resting facility exists when the continuous running time reaches a predetermined time. The detection means detects the current time as the movement information,
The navigation device according to claim 1, wherein the extraction unit extracts a destination candidate point according to the current time. The detection means detects the remaining amount of fuel in the moving body as the movement information,
The said extraction means extracts the movement destination candidate point which can refuel the said mobile body, when the said residual amount becomes less than predetermined amount, The one of Claims 1-3 characterized by the above-mentioned. The navigation device described in 1. Setting means for setting extraction conditions for the destination candidate point;
The navigation device according to any one of claims 1 to 4, wherein the extraction unit extracts the destination candidate point based on an extraction condition set by the setting unit. A detection process for detecting movement information indicating the movement status of the moving object;
Based on the movement information detected by the detection step, an extraction step of extracting an arbitrary destination candidate point from among destination candidate points existing in the vicinity of the moving body or on the moving path of the moving body;
A display control step for controlling the display screen so as to superimpose and display the notation information representing the destination candidate point extracted by the extraction step;
A navigation method comprising:   A navigation program for causing a computer to execute the navigation method according to claim 6. A computer-readable recording medium, wherein the navigation program according to claim 7 is recorded.

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