JP2012013428A - Navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigation device in which a desired destination around a current vehicle position can be easily selected from a destination history.SOLUTION: In a control unit 10, a destination set in the past is processed to be stored in storage 11 as the destination history. And the control unit 10 calculates the distance between the current vehicle position, which is obtained based on GPS signal received by a GPS reception unit 14 and the output of a gyroscope sensor 15, and the position represented by the position information of each of the destination history, thereby sorting the destination history in order based on the calculated distances and list the sorted destination history.

Description

  The present invention relates to a navigation device.

  2. Description of the Related Art Conventionally, a navigation device that can display a destination candidate estimated based on a travel history is known (for example, Patent Document 1).

JP 2009-180651 A

  When a user of a navigation device goes to a place where he has been in the past, he may leave without searching for a route. Searching for ground and searching for routes. However, the conventional destination history search is not suitable for searching a destination around the current position because the destination history is arranged in order of date and the distance relationship with the current position is unknown.

  The navigation device of the present invention is a navigation device that sets a destination and guides the vehicle to the destination, and obtains the current position acquisition means for acquiring the current position of the vehicle, and the name and position of the destination set in the past. Destination history storage means for storing at least information including the destination history, and the distance between the current position of the vehicle and the position represented by the position information of each destination history stored in the destination history storage means Distance calculation means, and history display means for rearranging the destination history in the order based on the distance calculated by the distance calculation means, and displaying a list of information including at least the name of the destination in the order history It is characterized by providing.

  It becomes easy to select a desired destination around the current position of the vehicle from the destination history.

It is an example of the structure of the navigation apparatus which is one Embodiment of this invention. FIG. 6 is a diagram for explaining an example of an operation for displaying a destination history around the current position of the vehicle in the navigation device according to the embodiment of the present invention. In the navigation apparatus which is one Embodiment of this invention, it is an example of the screen which displayed the destination log | history around the present position of a vehicle. It is an example of the flowchart regarding the process which displays the destination log | history around the present position of a vehicle in one Embodiment of this invention.

  A configuration of a navigation device according to an embodiment of the present invention will be described with reference to FIG. 1 includes a control unit 10, a storage unit 11, a display monitor 12, a speaker 13, a GPS receiving unit 14, a gyro sensor 15, and an input device 16. The navigation device 1 is connected to a vehicle by wire or wirelessly, and can acquire information such as the traveling speed of the vehicle. The navigation device 1 may be fixed to a vehicle or the like by a bracket or a suction cup. Hereinafter, a vehicle on which the navigation device 1 is mounted is referred to as a mounted vehicle.

  The control unit 10 in FIG. 1 is a part for executing various processes for operating the navigation device 1, and includes a microprocessor, various peripheral circuits, a RAM, a ROM, and the like. Examples of processing executed by the control unit 10 include route search processing, map matching processing, route guidance processing, facility search processing, destination history display processing, and the like.

  The route search process executed by the control unit 10 searches for a recommended route from the departure point to the destination, such as the current position of the mounted vehicle, based on preset search conditions. The destination may be input by the user of the navigation device 1 via the input device 16. The current position of the mounted vehicle can be specified by the control unit 10 using the GPS receiving unit 14 to calculate. The route search is executed based on the map data stored in the storage unit 11. When searching for a recommended route, not only the destination but also a waypoint may be set.

  The facility search process executed by the control unit 10 is to search for facilities in the vicinity of the current position of the vehicle or the recommended route from the facility data stored in the storage unit 11 based on the genre or keyword of the facility. Is. The genre or keyword of the facility used for the facility search can be input via the input device 16 by the user of the navigation device 1. The genre of the facility is a classification of the facility according to its use.

  The route guidance process executed by the control unit 10 refers to the driver using the display monitor 12 or the speaker 13 so that the driver can drive the mounted vehicle along the recommended route searched by the route search process. I do. The control unit 10 displays a map with a mark indicating the position of the mounted vehicle on the display monitor 12 and outputs voice guidance from the speaker 13.

  The storage unit 11 in FIG. 1 is a collection of storage media including a hard disk and stores various types of data including map data representing road maps, image data such as icons, and audio data. Data stored in the storage unit 11 is read from the storage unit 11 by the control unit 10 as necessary, and is used for various processes and controls executed by the control unit 10.

  The map data stored in the storage unit 11 includes information related to a node representing a point on the map and information related to a link representing a road connecting the point represented by the node. The information about the node includes position information, information about the location name, and the like. The information regarding the link includes information such as the link length, which is the length of the road represented by the link, the road type, and the direction in which the vehicle is permitted to pass. Based on these pieces of information, route search processing, map matching processing, route guidance processing, and the like are executed.

  The map data stored in the storage unit 11 further includes facility data. The facility data includes information such as the name of the facility, the location of the facility, and the genre of the facility. The control unit 10 can execute the facility search process described above using the facility data.

  The storage unit 11 stores a destination set in the past and a recommended route to the destination in association with each other. In addition, a transit point and a recommended route to the transit point are also stored. Hereinafter, destinations and waypoints set in the past stored in the storage unit 11 will be referred to as destination history. The destination history includes location information and point names of destinations and waypoints, information on the date and time set for the destination and waypoints, and the like.

  The destination history display process executed by the control unit 10 is a process of displaying a list of the above-described destination history on the display monitor 12 in a predetermined order. The user can select what is set as the destination or waypoint from the displayed destination history via the input device 16 or the like. In the present embodiment, the order of displaying the destination history is the order of distance from the current position of the mounted vehicle. Details of the destination history display processing in the present embodiment will be described later.

  The control unit 10 can store new data in the storage unit 11 and can update already stored data. The navigation device 1 can appropriately perform various processes even when a facility or road is newly established or a facility or road is abolished and cannot be used by updating map data, facility data, or the like. . The map data update method includes a method of updating a difference between the map data stored in the HDD 11 and the latest map data, a method of replacing a map data file, and the like. Data used for updating the map data may use electronic media such as a DVD (not shown) or a USB memory (not shown), or may be downloaded from outside the navigation device 1.

  The display monitor 12 in FIG. 1 is a device for displaying various images and videos, and a liquid crystal display or the like is used. By displaying the map and the current position of the mounted vehicle on the display monitor 12 based on the control of the control unit 10, the navigation device 1 can perform guidance display for guiding the mounted vehicle. In addition, it is possible to display a menu screen for performing operations via the input device 16 and display of a list such as a destination history.

  The speaker 13 in FIG. 1 outputs various audio information related to the traveling of the mounted vehicle under the control of the control unit 10. For example, according to the route searched by the control unit 10, a guidance voice for guiding the mounted vehicle to the destination, a warning sound, or the like is output.

  1 receives a GPS signal transmitted from a GPS satellite and outputs it to the control unit 10. The GPS signal includes the position and transmission time of the GPS satellite that transmitted the GPS signal as information for specifying the current position of the mounted vehicle and the current date and time. Therefore, the control unit 10 can calculate the current position and the current date and time of the on-board vehicle based on such information by using GPS signals from a predetermined number or more of GPS satellites. The control unit 10 calculates the time change of the current position of the mounted vehicle calculated based on the GPS signal, and based on the time change of the current position of the mounted vehicle, the direction in which the mounted vehicle is traveling and the distance traveled Can be specified.

  The control unit 10 of the navigation device 1 is on which road the mounted vehicle is present based on the map data stored in the storage unit 11 or the locus of the change in the current position of the mounted vehicle calculated as described above. To identify. Such a process is called a map matching process.

  The gyro sensor 15 in FIG. 1 is a sensor for detecting an angular velocity according to a change in the direction of the mounted vehicle. Based on the angular velocity detected by the gyro sensor 15, the direction of the mounted vehicle is obtained, and the direction in which the mounted vehicle is traveling can be specified.

  The GPS receiving unit 14 may not be able to receive a GPS signal when the mounted vehicle is traveling in a tunnel or in a service area under an overpass. Based on the angular velocity detected by the gyro sensor 15, the traveling speed of the mounted vehicle transmitted from the mounted vehicle via a harness or wireless communication, and the map data stored in the storage unit 11, the control unit 10 It is also possible to specify information regarding the current position and the direction of travel. The map matching process can also be executed based on the locus of the current position of the mounted vehicle specified in this way. Map matching processing based on GPS signals and map matching processing based on angular velocities, travel speeds, and the like can be used in combination.

  The input device 16 in FIG. 1 is a device for detecting various operations input from the user to operate the navigation device 1 and has various input switches. The user operates the input device 16 to select, for example, a facility to be set as a destination from a list of destination histories, or to scroll a map displayed on the display monitor 12 in an arbitrary direction. can do. The input device 16 can be realized by an operation panel, a remote controller, or the like. Alternatively, the input device 16 may be a touch panel integrated with the display monitor 12.

  The destination history display process in the present embodiment will be described. The destination history display processing in the present embodiment is a list of destination histories arranged in order from the smallest distance from the current position. When the user of the navigation device 1 goes to a point that has been in the past, the user may leave without setting a recommended route using the route search process. At this time, the user may not know the road around the destination, and the user may search for a recommended route from the current position of the mounted vehicle to the destination. In such a case, in the destination history display process of the present embodiment, the destination history can be rearranged and displayed in ascending order of the distance from the current position, so that the user can easily display the desired destination history. Can be found.

  Further, the destination history display process of the present embodiment determines whether or not a facility at a point corresponding to each destination history is available based on the facility data stored in the storage unit 11. Then, the display mode such as the background color and the character color of the facility determined to be unusable is different from the facility determined to be usable. As a result, the user who has reached the periphery of the destination can know that the destination cannot be reached because the facility or the like desired to be the destination has disappeared.

  2 and 3 are display examples when the destination history display process of the present embodiment is being executed. When a predetermined operation (for example, selecting the map menu button 21) is performed via the input device 16 while the map is being displayed on the display monitor 12, the navigation device 1 of the present embodiment displays “ A menu 22 including a selection item 23 "Nearby destination history" is displayed. When the user selects the selection item 23 “Nearby destination history” from the menu 22, the navigation apparatus 1 displays a screen as shown in FIG.

  FIG. 3 is a screen example in which the destination history is displayed as a list on the display monitor 12. The list 30 displays the destination history stored in the storage unit 11 in ascending order of the distance between the current position of the mounted vehicle and the position represented by the position information of each destination history. The list 30 includes a destination point name 301 for each destination history, a distance 302 between the current position of the mounted vehicle and the position represented by the location information of the destination history, a set date and time 303 set for the destination, etc. Is displayed. The user can narrow down the destination history displayed on the list 30 by performing a predetermined operation (for example, selecting the narrow-down button 31) via the input device 16. Further, by performing a predetermined operation (for example, selecting the destination setting button 32) via the input device 16, one selected destination history can be set as the destination.

  The destination history displayed in the list can be narrowed down based on various conditions. For example, only those whose set date and time are within a predetermined range may be displayed. The date and time when the user tries to use the same place may be concentrated on a specific time zone or day of the week. For example, facilities for eating such as restaurants may be concentrated during lunch hours, and medical facilities may be concentrated on certain days of the week for regular hospital visits. Therefore, by narrowing down the display so that only the set time set for the destination or waypoint is included in the period of the predetermined range including the current date and time, the user can go to the desired destination history during the period of the predetermined range. Makes it easier to discover.

  Alternatively, only the positions represented by the position information of the destination history may be displayed within a predetermined distance from the current position of the mounted vehicle. The predetermined distance range may be calculated based on the scale of the map displayed on the display monitor 12, for example.

  Furthermore, the genre of the facility at the point corresponding to each destination history may be acquired based on the facility data stored in the storage unit 11, and the destination history may be narrowed down based on the genre of the facility. The genre of the facility that narrows down the destination history may be determined based on the current date and time calculated by the control unit 10, the scale of the map displayed on the display monitor 12, and the like. For example, if the current date and time is close to lunch time, the destination history may be narrowed down by a genre such as “restaurant”. Also, when determining the genre of a facility that narrows down the destination history based on the map scale, for example, if the map scale is large, the destination of the genre of a highly public facility such as “transportation” or “public facility” It may be narrowed down to display history, and when the scale of the map is small, it may be narrowed down to display destination histories of genres of facilities with low publicity.

  FIG. 4 is an example of a flowchart of the destination history display process of the present embodiment. The processing of FIG. 4 is executed by the control unit 10 when the selection item 23 “Nearby destination history” is selected in FIG.

  In step S101 of FIG. 4, the control unit 10 acquires the current position of the mounted vehicle. In the destination history display process, when the current position of the mounted vehicle is acquired, the process proceeds to step S102.

  In step S102 of FIG. 4, the control unit 10 calculates the distance between the current position of the mounted vehicle and the position represented by the position information of the destination history for each destination history that is a list display target. The destination history display process proceeds to step S103 after the distance is calculated for each destination history stored in the storage unit 11.

  In step S103 of FIG. 4, the control unit 10 extracts all destination histories that are targets of list display if there are currently unavailable facilities among the facilities corresponding to the respective destination histories. The determination as to whether or not it is currently available is based on, for example, searching for facility data stored in the storage unit 11 based on position information included in the destination history, and whether or not there is facility data with a matching point name or the like. It can be realized by determining. If the facility data identification number is stored when the destination history is stored, the facility number is referred to by the stored identification number to determine whether the facility data is currently available. Good. In the destination history display process, when all the destination histories that are not currently available are extracted, the process proceeds to step S104.

  In step S104 of FIG. 4, the control unit 10 displays a list of each destination history that is a list display target. At this time, the display mode of the destination history extracted in step S103 is different from the display mode of other destination histories or is not displayed. For example, the background color or the character color is changed. The destination history display process proceeds to step S105 when a list of destination histories to be displayed as a list is displayed.

  In step S105 in FIG. 4, the control unit 10 determines whether or not a destination has been set. The determination as to whether or not the destination has been set can be realized, for example, by determining whether or not the destination setting button 32 in FIG. 3 has been selected. In the destination history display process, when the destination is set, the destination history display process ends. When the destination history display processing ends by setting the destination, the control unit 10 executes appropriate processing such as route search processing. On the other hand, if the destination is not set, the destination history display process proceeds to step S106.

  In step S106 of FIG. 4, the control unit 10 determines whether to narrow down the list display target. The determination as to whether or not to narrow down the list display target can be realized, for example, by determining whether or not the narrow-down button 34 in FIG. 3 has been selected. The destination history display processing proceeds to step S107 when narrowing down the list display target, and returns to step S105 when narrowing down.

  In step S107 in FIG. 4, the control unit 10 narrows down the list display targets by a predetermined method. The list display target may be narrowed down by a preset method or a method specified by the user when narrowing down. For example, as described above, the set date and time of the destination history and the map range displayed on the display monitor 12 Then, it may be narrowed down based on the genre of the facility determined based on the current date and time or the scale of the map. The destination history display process returns to step S101 after narrowing down the list display targets.

  According to the embodiment described above, the following operational effects are obtained.

  The navigation device 1 according to the present embodiment is a navigation device that sets a destination of a route and guides the vehicle to the destination. The navigation device 1 of the mounted vehicle is based on a GPS signal from the GPS receiver 14 or a gyro sensor 15. The current position is acquired (step S101 in FIG. 4), and the point name and position information of the destination set in the past are stored in the storage unit 11 as the destination history. The distance between the current position of the mounted vehicle and the position represented by the position information of each destination history is calculated (step S102 in FIG. 4), and the destination history is calculated in the order based on the distance calculated by the distance calculating means. The information including at least the name of the destination is displayed as a list on the display monitor 12 as shown in FIG. 3 (step S104 in FIG. 4). This makes it easy for the user to select a desired destination around the current position of the vehicle from the destination history.

  The navigation device 1 according to the present embodiment narrows down the destination information stored in the storage unit 11 to only destination histories whose position information is within a predetermined map range, and the date and time set for the destination Only destination histories within a predetermined range can be narrowed down (step S107 in FIG. 4). This makes it easier for the user to select a desired destination.

  The navigation device 1 according to the present embodiment displays a display corresponding to the destination history that is not available in a display mode different from the destinations that can still be used (steps S103 and S104 in FIG. 4). Thereby, it is possible to alert the user about the facility that can no longer be used.

  The embodiment described above can be implemented with the following modifications.

  The execution of the destination history display process is not limited to when the map is displayed on the display monitor 12. Moreover, the display method of the destination history may differ depending on the execution method. For example, when the map is displayed as in the menu 22 of FIG. 2, it is displayed in order of distance from the current position of the mounted vehicle as in the present embodiment, and the destination history is displayed from the main menu of the navigation device 1. When executing the processing to be performed, the destination history may be displayed in the order of storage.

  The destination history stored in the storage unit 11 deletes the destination history extracted when the information about the date and time set as the destination is out of date or when the facility is not currently available in step S103 of FIG. It may be. In addition, when a facility selected as a facility that is not currently available to the user is selected, the user may be notified of the possibility that the facility is not currently available using an image and / or sound.

  If the current position of the mounted vehicle is traveling within a predetermined map range for a predetermined period or longer, it is determined that the driver of the mounted vehicle is at a loss and the destination history display process of FIG. Guidance urging execution may be performed, or destination history display processing may be performed.

  Each embodiment and various modifications described above may be applied to other than the vehicle. For example, the present invention may be applied to a navigation device that searches for walking routes and guides pedestrians.

  Each embodiment and various modifications described above are merely examples, and the present invention is not limited to these contents as long as the features of the invention are not impaired.

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 10 Control part 11 Memory | storage part 12 Display monitor 13 Speaker 14 GPS receiving part 15 Gyro sensor 16 Input device 30 List

Claims (5)

A navigation device for setting a destination and guiding a vehicle to the destination,
Current position acquisition means for acquiring the current position of the vehicle;
Destination history storage means for storing information including at least the name and position of the destination set in the past as destination history;
Distance calculation means for calculating the distance between the current position of the vehicle and the position represented by the position information of each destination history stored in the destination history storage means;
History display means for rearranging the destination history in the order based on the distance calculated by the distance calculation means, and displaying a list of information including at least the name of the destination in the order history. A navigation device characterized by that. The navigation device according to claim 1, wherein
A display history narrowing means for narrowing down the destination history based on a predetermined condition;
The navigation apparatus, wherein the history display means rearranges the destination history narrowed down by the display history narrowing means in an order based on the distance calculated by the distance calculation means. The navigation device according to claim 2, wherein
The display history narrowing means narrows down to only the destination history of destinations whose destination locations are within a predetermined map range around the current position of the vehicle in the destination history. apparatus. The navigation device according to claim 2 or 3,
The destination history storage means stores information on the date and time when the destination is set as the destination history,
The navigation device characterized in that the display history narrowing means narrows down to only destination histories for destinations in which the date and time of setting the destination histories are within a predetermined range. The navigation device according to any one of claims 1 to 4,
Further comprising availability determination means for determining whether the facility corresponding to the destination history is no longer available;
The history display means includes a display mode of a destination history of a facility determined to be unavailable by the availability determination unit, and a display mode of a destination history of a point determined to be usable by the availability determination unit. A navigation device characterized by being different.

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