JP2008298740A - Navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device for making it unnecessary to confirm whether the searching end point of path finding is apart from the entrance of the destination or not when setting the destination. <P>SOLUTION: A display range of "So-and-so Park" is superimposed on the position of a cursor 41 displayed in the center of a display screen by scrolling a map 40. The destination is set to "So-and-so Park" by operating an input device. After the destination was set, path finding is started by operating the input device. As a result, the searching end point is set to the position of a node nearest to the entrance 42 of "So-and-so" Park, that is, the position of an intersection 43, and a recommended route 44 to the intersection 43 is searched. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a navigation device.

When a cursor is placed at a point that does not have point data, such as a golf course or park with a vast site, and it is specified as a destination, a point where point data near the specified destination exists is set as the destination, and the route A navigation device for performing a search is known as a conventional technique (for example, Patent Document 1).
JP 2002-267475 A

  The conventional navigation device as described in Patent Document 1 is troublesome because the user must confirm whether or not a point near the entrance of the designated destination is set as the destination. There is.

(1) The navigation device of the invention of claim 1 is a map display means for displaying a map, polygon data having polygon position and range data used for drawing the map, position data of the entrance of the facility, Storage means for associating and storing, designation means for designating a position on the map in the map displayed by the map display means, polygon detection means for detecting a polygon including the position on the map designated by the designation means, Based on the polygon data and the position data stored in the storage means, a position detecting means for detecting the position of the entrance of the facility corresponding to the polygon detected by the polygon detecting means, and a position detected by the position detecting means. Search end point determining means for determining the search end point and the search determined by the search end point determining means. Characterized in that it comprises a search means for searching for a recommended route to the end point.
(2) The invention according to claim 2 is the navigation device according to claim 1, in addition, when there are a plurality of facility entrances corresponding to the polygons detected by the polygon detecting means, one of the plurality of entrances is selected. The search end point determining means determines the search end point based on the position of the entrance selected by the entrance selecting means.
(3) The invention of claim 3 is characterized in that, in the navigation device according to claim 1, when there are a plurality of facility entrances, the polygon data includes data representing polygons corresponding to each entrance.
(4) The navigation device of the invention of claim 4 is a map display means for displaying a map, a storage means for storing position data of the entrance of the facility, and a position on the map corresponding to the entrance of the facility by the map display means. When displayed, an entrance display means for displaying an entrance mark at a position on the map corresponding to the entrance of the facility is provided.
(5) According to a fifth aspect of the present invention, in the navigation device according to the fourth aspect, the entrance display means blinks the entrance mark.

  According to the present invention, polygon data and location information of a facility entrance are stored in association with each other, and when a point on the map is designated, the entrance of the facility corresponding to that point is based on the polygon at the designated point. The recommended route to the position based on the position of the entrance was searched for. Therefore, the user does not need to confirm whether or not the search end point is away from the destination entrance.

  FIG. 1 shows a navigation device 1 according to an embodiment of the present invention. The navigation device 1 searches for a recommended route to the vicinity of the entrance of the facility set as the destination. The navigation device 1 includes a control circuit 11, ROM 12, RAM 13, current location detection device 14, image memory 15, display monitor 16, speaker 17, input device 18, and disk drive 19. The disc drive 19 is loaded with a DVD-ROM 110 in which map data is stored.

  The control circuit 11 includes a microprocessor and its peripheral circuits, and performs various controls by executing a control program stored in the ROM 12 using the RAM 13 as a work area. The control circuit 11 performs a predetermined route search process based on the map data stored in the DVD-ROM 110. Then, the processing result is displayed on the display monitor 16 as a recommended route.

  The current location detection device 14 is a device that detects the current location of the vehicle. The current location detection device 14 includes a vibration gyro 14a, a vehicle speed sensor 14b, a GPS (Global Positioning System) sensor 14c, and the like. The vibration gyro 14a detects the traveling direction of the vehicle, the vehicle speed sensor 14b detects the vehicle speed, and the GPS sensor 14c detects a GPS signal from a GPS satellite. The navigation device 1 determines a display range of the map, a search start point, and the like based on the current location of the vehicle detected by the current location detection device 14, and displays the current location as a vehicle position mark on the map.

  The image memory 15 stores image data to be displayed on the display monitor 16. The image data includes road map drawing data and various graphic data, which are appropriately generated by the control circuit 11 based on the map data stored in the DVD-ROM 110.

  The disk drive 19 reads map data from the DVD-ROM 110. The map data includes map display data, facility data, route search data, and the like. The map display data includes polygon data for drawing a map background. Details of the polygon data will be described later. The map display data and the route search data include road link information and node information stored in the map data. The map display data has map data of a plurality of scales from wide areas to details, and the scale of the display map can be changed according to a user request.

  FIG. 2 is a diagram for explaining the configuration of the facility data 20 included in the map data. The facility data 20 includes longitude / latitude coordinates 22a, address 22b, name 22c, type 22d, business hours 22e, text data 22f describing detailed information on the facility, facility ID 22g, entrance ID, and the like. The position information 22h and the like are included. Among the information included in the facility data 20, the facility ID 22g is an ID number assigned to each facility in order to identify the facility. The entrance position information 22h includes latitude / longitude coordinates of the entrance position of the facility. Usually, the latitude / longitude coordinates in the position information 22h at the entrance are the same as the latitude / longitude coordinates 22a of the facility, but differ when the site area of the facility is large.

  FIG. 3 is a diagram for explaining the configuration of the polygon data 30. Next, the configuration of the polygon data 30 will be described with reference to FIG. Polygon data 30 includes polygon ID 31, shape point data 32, facility ID 33, and attribute information 34. The polygon ID 31 is an ID number assigned to identify each polygon. The shape point data 32 includes the coordinates of the vertices of a polygon made of a polygon. The facility ID 33 is an ID number assigned to identify a facility drawn by a polygon, and is common with the facility ID 20 g of the facility data 20. The attribute information 34 is information for determining the background color of the polygon. For example, when the attribute information 34 is a park, the polygon is drawn with the color and pattern defined for the park.

  Although the map data is read from the DVD-ROM 110, the map data may be read from a recording medium other than the DVD-ROM 110, such as a CD-ROM or a hard disk.

  The display monitor 16 provides the user with various information such as a map near the vehicle position as a screen display based on various information such as map data. The speaker 17 outputs sound for instructing the user to perform various input operations and for guiding the route. The input device 18 has operation keys for the user to set various commands, and is realized by a button switch on the operation panel, a hard switch around the panel, or the like. The user can scroll the map displayed on the display monitor 16 by operating the input device 18. Then, the destination is set by aligning the destination point with the cursor displayed at the center of the display screen.

  When the destination is set by the user, the navigation device 1 uses the current location detected by the current location detection device 14 as a search start point, and uses the destination entrance as a search end point to calculate a route to the destination based on a predetermined algorithm. Do it. Such route calculation is hereinafter referred to as route search. The route thus obtained (hereinafter referred to as a recommended route) is displayed on the screen in a manner different from other roads by changing the display form, for example, the display color. Thereby, the user can recognize the recommended route on the map on the screen. The navigation device 1 instructs the user in the direction of travel using a screen or voice so that the vehicle can travel according to the recommended route, thereby guiding the route of the vehicle.

  Next, search for a recommended route of the navigation device 1 according to an embodiment of the present invention will be described with reference to FIGS. 4 and 5. 4 and 5 are diagrams for explaining the display screen of the display monitor 16 displayed in the search for the recommended route. The description will be made assuming that the user searches for a recommended route to “「 × park ”shown in FIGS. 4 and 5.

  As shown in FIG. 4, the map 40 is scrolled so that the display range of “◯ × park” overlaps the position of the cursor 41 displayed at the center of the display screen. Then, the input device 18 is operated to set “◯ × park” as the destination. After setting the destination, the input device 18 is operated to start a route search. As a result, as shown in FIG. 5, the search end point is set at the position of the node closest to the entrance 42 of “◯ × park”, that is, the position of the intersection 43, and the recommended route 44 to the intersection 43 is searched. By traveling according to the recommended route 44, the user can directly reach the entrance 42 of “Ox Park”. For this reason, the route is guided to the opposite side of the entrance 42 of “Ox Park”, and it does not bother to move around to the entrance 42.

  FIG. 6 is a flowchart for explaining the recommended route search processing. Next, the recommended route search process of the navigation device 1 according to the embodiment of the present invention will be described with reference to the flowchart of FIG. The processing in FIG. 6 is executed in the control circuit 11 by a program that starts when a recommended route search operation is performed by the input device 18.

  In step S601, a polygon overlapping the cursor 41 is detected from the coordinates on the map overlapping the cursor 41. Specifically, a polygon having shape point data surrounding the coordinates of the cursor 41 on the map is detected. In step S <b> 602, the facility ID 33 relating to the detected polygon is acquired from the polygon data 30.

  In step S603, the acquired facility ID is collated with the facility ID 22g of the facility data 20. In step S604, the position information 22h of the entrance of the facility relating to the facility ID 22g matched in the collation in step S603 is acquired from the facility data 20.

  In step S605, the node closest to the entrance position is detected by comparing with the node information of the route search data stored in the map data. In step S606, the detected node is set as a search end point. In step S607, the recommended route to the search end point is searched for using the current location of the vehicle as the search start point. In step S608, the searched recommended route is displayed on the display monitor 16.

The navigation device 1 according to the above embodiment has the following operational effects.
(1) The polygon data 30 and the location information 22h of the entrance 42 of the facility are stored in association with each other via the facility IDs 22g and 33, and when a point on the map is designated, based on the polygon at the designated point, The entrance 42 of the facility corresponding to the point is detected, and the recommended route 44 to the position 43 near the entrance 42 is searched. Therefore, the user does not need to confirm whether or not the search end point 43 is away from the destination entrance 42.

(2) The designated facility is specified based on the polygon designated by the cursor 41. As a result, even if the area of the facility is large, the facility can be specified by specifying the range of the facility. On the other hand, when the facility designated by the cursor is specified by comparing the location designated by the cursor 41 with the location of the facility (for example, the center location of the facility), the following problem occurs. That is, when the site area of the facility is large, even if the designated area is within the range of the facility, if the designated position is far from the facility position (for example, the center position of the facility), the designated facility is not specified.

The navigation apparatus 1 of the above embodiment can be modified as follows.
-Other embodiments 1-
Although the search end point is set to the node closest to the entrance, the search end point may be set to the entrance. The recommended route to the entrance can be searched by using map display data or the like. By doing so, route guidance can be received until the entrance is reached, and convenience is improved.

-Other embodiment 2-
When there are a plurality of entrances in the facility designated by the cursor 41, the plurality of entrances may be displayed in a list so that the user can select them. For example, it is assumed that there are four entrances of “East Gate”, “West Gate”, “South Gate”, and “North Gate” in “Ox Park” designated by the user. In this case, as shown in FIG. 7, when “◯ × park” is designated, a list screen 71 displaying a list of four entrances of “◯ × park” is displayed on the display monitor 16. The user selects a desired entrance from the four entrances 72 a to 72 d displayed on the list screen 71. As a result, the node closest to the selected entrance is set as the search end point, and the recommended route is searched.

  FIG. 8 is a diagram for explaining facility data 20A of a facility having a plurality of entrances. A configuration of the facility data 20A for displaying the list screen 71 displaying a plurality of entrances will be described with reference to FIG. The items of the facility data 20A include the number 22g of entrances, the locations 221j to 224j of entrances, and the names 221k to 224k of entrances instead of the entrance location 22h of the facility data 20. In this case, when the facility is specified by the cursor 41, the number 22g of the entrance number of the facility is read. When the number of entrances 22g is 2 or more, a list screen 71 displaying entrance names 221k to 224k is created and displayed. Then, a search end point is set based on the entrance positions 221j to 224j related to the entrance names 221k to 224k selected from the list screen 71, and a recommended route is searched.

  By doing so, even when there are a plurality of entrances at the destination facility, route guidance can be received to the desired entrance, and convenience is improved.

-Other Embodiments 3-
When there are multiple entrances at the destination facility, if the facility is drawn with multiple polygons and a polygon is specified from among the multiple polygons, the entrance included in the polygon specified from the multiple entrances The search end point may be set based on the above. For example, as shown in FIG. 9, when drawing “XX Chinatown” having four entrances of “East Gate”, “West Gate”, “South Gate”, and “North Gate”, four polygons 91 to 94 are used. To do. Here, it is assumed that the polygon 91 includes “East Gate”, the polygon 92 includes “South Gate”, the polygon 93 includes “West Gate”, and the polygon 94 includes “North Gate”. When the polygon 91 is designated by the cursor 41, the search end point is set based on the position of “East Gate”, and when the polygon 92 is designated, the search end point is set based on the position of “South Gate”. To do. Further, when the polygon 93 is designated by the cursor 41, the search end point is set based on the position of “West Gate”, and when the polygon 94 is designated, the search end point is set based on the position of “North Gate”. Like that.

  FIG. 10 is a diagram for explaining the facility data 20B of another facility having a plurality of entrances. A configuration of facility data 20B of a facility having a plurality of entrances will be described with reference to FIG. The items of the facility data 20B include the number of entrances 22g, entrance positions 225j to 228j, and entrance names 225k to 228k, as in the facility data 20A.

  FIG. 11 is a diagram for explaining polygon data 30A of a facility having a plurality of entrances displayed with a plurality of polygons. A configuration of polygon data 30A of a facility having a plurality of entrances will be described with reference to FIG. In the polygon data 30A, in addition to the items of the polygon data 30, the item of the entrance number 35 is increased. The entrance number 35 is a number for specifying the entrance corresponding to the designated polygon among the plurality of entrances stored in the facility data 20B. That is, it is a number that identifies the number of the stored entrance among a plurality of entrances. For example, in FIG. 11, it is assumed that a polygon 91 whose polygon ID 31 is “111” is designated by the cursor 41. With the facility ID 33 “011”, it is possible to specify that the facility designated from the facility data 20B is “XX Chinatown”. Since the entrance number 35 is “1”, the “East Gate” 225j stored first among the four entrances 225j to 228j and 225k to 228k of the “XX Chinatown” 21b of the facility data 20B. , 225k is specified. Then, the search end point is set based on the position 225k of “East Gate”.

  By doing as described above, even when there are a plurality of entrances at the destination facility, it is possible to designate an entrance close to the position designated by the cursor. Thereby, if the position where the user wants to enter the destination is designated by the cursor 41, the entrance close to the position is designated, and the convenience is improved. For example, when the position of the departure place is on the east side with respect to the destination, the polygon 91 can be designated and the entrance can be designated as “East Gate”.

-Other Embodiments 4-
As shown in FIG. 12, when the map 40 is scrolled in the direction of the arrow 45 and the position of the entrance on the map is displayed on the display monitor 16, the entrance mark 46 may be displayed. In order to make the entrance mark 46 conspicuous, it may be further blinked. Thereby, the user can recognize where the entrance is in a large facility, and convenience is improved.

  Whether or not the facility mark 45 is displayed on the display screen of the display monitor 16 is determined based on the facility data 20. That is, when the entrance position 22h of the facility data 20 is included in the display range of the display monitor 16, the entrance mark 46 is displayed or blinked at the entrance position 22h on the map.

  The above description is merely an example, and the present invention is not limited to the above embodiment.

The correspondence between the elements of the claims and the embodiments will be described.
The map display means of the present invention corresponds to the control circuit 11 and the display monitor 16, and the storage means corresponds to the DVD-ROM 110. The designation means corresponds to the input device 18, and the polygon detection means, the position detection means, the search end point determination means, and the search means correspond to the control circuit 11. The entrance selection means corresponds to the input device 18, and the entrance display means corresponds to the control circuit 11 and the display monitor 16. In addition, the above description is an example to the last, and when interpreting invention, it is not limited to the correspondence of the component of said embodiment and the component of this invention at all.

It is a block diagram which shows the structure of the navigation apparatus in one Embodiment of this invention. It is a figure for demonstrating the structure of the facility data in one Embodiment of this invention. It is a figure for demonstrating the structure of the polygon data in one Embodiment of this invention. It is a figure for demonstrating the setting operation of the destination in one Embodiment of this invention. It is a figure for demonstrating the search of the recommended path | route in one Embodiment of this invention. It is a flowchart for demonstrating the recommended route search process in one Embodiment of this invention. It is a figure for demonstrating the list screen which displayed the some entrance. It is a figure for explaining the facility data of the facility which has a plurality of entrances. It is a figure for demonstrating the facility which has the some entrance displayed by the some polygon. It is a figure for demonstrating the facility data of the other facility which has a some entrance. It is a figure for demonstrating the polygon data of the facility which has the some entrance displayed with the some polygon. It is a figure for demonstrating the entrance mark displayed when the position on the map of an entrance is displayed on a display screen.

Explanation of symbols

1 navigation device 11 control circuit 16 display monitor 18 input device 20, 20A, 20B facility data 30, 30A polygon data 40 map 41 cursor 42 entrance 43 intersection 44 recommended route 46 entrance mark 71 list screen 91-94 polygon

Claims (5)

Map display means for displaying a map;
Storage means for storing polygon data having polygon position and range data used to draw the map in association with facility entrance position data;
Designation means for designating a position on a map in the map displayed by the map display means;
Polygon detection means for detecting a polygon including a position on the map designated by the designation means;
Position detecting means for detecting the position of the entrance of the facility corresponding to the polygon detected by the polygon detecting means based on the polygon data and the position data stored by the storage means;
A search end point determining means for determining a search end point based on the position detected by the position detecting means;
A navigation device comprising: search means for searching for a recommended route to the search end point determined by the search end point determination means. The navigation device according to claim 1, wherein
In addition, when there are a plurality of facility entrances corresponding to the polygons detected by the polygon detection means, there are entrance selection means for selecting one entrance from the plurality of entrances,
The navigation apparatus according to claim 1, wherein the search end point determination unit determines a search end point based on the position of the entrance selected by the entrance selection unit. The navigation device according to claim 1, wherein
The said polygon data has the data showing the polygon corresponding to each entrance, when there are two or more entrances of a facility, The navigation apparatus characterized by the above-mentioned. Map display means for displaying a map;
Storage means for storing the location data of the entrance of the facility;
When a position on the map corresponding to the entrance of the facility is displayed by the map display means, an entrance display means for displaying an entrance mark at a position on the map corresponding to the entrance of the facility is provided. Navigation device. The navigation device according to claim 4, wherein
The navigation device characterized in that the entrance display means blinks the entrance mark.

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