JP3884204B2 - Navigation apparatus and property entrance guidance method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation device and a property entry guidance method, in particular, to include an inlet positional information of the property to the property database provided in the navigation device, when the property is set as the destination, the inlet position of the Property The present invention relates to a navigation device that searches for and displays a route to be guided to a property and a property entrance guidance method thereof .
[0002]
[Prior art]
A navigation device that provides driving guidance of a vehicle so that a driver can reach a desired destination, detects the position of the vehicle, and maps data around the vehicle position from a storage medium such as a CD-ROM or DVD-ROM. The map image is drawn on the display screen, and the vehicle position mark (vehicle position mark) is drawn at a predetermined position on the map image. As the current position changes due to the movement of the vehicle, the vehicle position mark on the screen is moved, or the vehicle position mark is fixed at a predetermined position such as the center of the screen and the map is scrolled to always The map information around you can be seen at a glance. Such a navigation device has a route guidance function that searches for a guidance route from a departure place to a destination, displays the guidance route on a map, and performs intersection guidance (intersection enlarged view, display of traveling direction).
[0003]
[Problems to be solved by the invention]
In the navigation device, when a desired property is set as a destination, a guidance route to the vicinity of the property is searched and the guidance route is displayed. In this case, since there is no information on the entrance position of the property in the database storing the property information such as the location of the property, even if the route to the destination property is searched, it is guided to a position different from the entrance of the property Sometimes it was unfriendly.
From the above, the first object of the present invention is to search and display a route that leads to the entrance position of a property when the property is set as a destination.
The second object of the present invention is to display the property entrance in an easy-to-understand manner when approaching the property that is the destination during traveling on the guidance route.
A third object of the present invention is to display so that the position of the entrance is present at the time of destination setting.
[0004]
[Means for Solving the Problems]
According to the present invention, according to the present invention, the location information of the property entrance is included in the database, and when the property is set as the destination, the route for guiding to the property entrance location is searched and displayed, and the property is also displayed. This is achieved by enlarging the periphery, displaying the property three-dimensionally, and rotating and displaying the display image so that the property entrance position can be seen.
In addition, according to the present invention, the above-described problem includes the entry position information of the property in the database, and when the property is set as a destination, the route to be guided to the entrance position of the property is searched and displayed, and When the distance from the vehicle position to the destination property becomes less than a certain value when traveling on the guide route, the surrounding area of the property is enlarged, the property is displayed in three dimensions, and the entrance position is visible. This is accomplished by rotating and displaying the image.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
(A) Schematic description of the present invention FIG. 1 is a first schematic explanatory diagram of the present invention, and is a display example when the distance from the vehicle position to the destination property becomes less than a certain value when traveling on the guidance route. is there. In the figure, RD1 and RD2 are roads, BLD is a target property, ENT is an entrance position of the target property BLD, and RT is a guide route to the entrance position.
In the navigation device of the present invention, the property entrance location information is included in the database storing the property information, and when the guidance route search is performed, the guidance route to the property entrance that is the destination is searched using the entrance location information. ,indicate. Then, when traveling along the guidance route, if the vehicle position approaches a certain distance to the destination property, the map around the property BLD is enlarged to display the property entrance position ENT and the guidance for guiding to the entrance position. The route RT is displayed.
As a result, when the property is set as the destination, it is possible to search and display the route that leads to the entrance position of the property, and when approaching the destination property when driving on the guidance route, it is easy to understand the entrance of the property Can be displayed.
[0006]
FIG. 2 is a second schematic explanatory view of the present invention, in the case of destination setting. In the figure, CSR is a cursor, BLD is a target property, RD1 and RD2 are roads, PM is a menu displayed when the target property is selected, and ENT is the entrance position of the target property BLD.
When the destination is set by pinpoint search such as a telephone number, when the destination is set, the destination BLD (FIG. 2A) is instructed by the cursor CSR and the menu PM is displayed. Then, when the entrance guidance in the menu PM is selected, a map around the property BLD is enlarged and a three-dimensional perspective view (right oblique perspective view) of the property BLD is displayed (FIG. 2B). At this time, if the property entrance position ENT is hidden behind the property BLD and cannot be seen, the display images are displayed so that the property entrance position ENT (FIG. 2D) can be seen. Rotate and display as in (d). Thereby, when setting the destination, it is possible to display so that the position of the entrance exists in the property.
[0007]
FIG. 3 is a third schematic explanatory view of the present invention, showing a case where the vehicle is traveling on a guide route. In the figure, CM is the vehicle position mark, BLD is the target property, RT is the guide route to the target property, and ENT is the entrance position of the target property BLD.
As shown in FIG. 3B, when the vehicle CM (FIG. 3A) is traveling on the target property guidance route RT and the vehicle CM approaches a certain distance to the target property BLD. In addition to the enlarged display, the target property BLD is three-dimensionally displayed, and the vehicle position CM and the guidance route RT to the target property are displayed. Next, the display image is rotated and displayed as shown in FIGS. 3C and 3D so that the property entrance position ENT (FIG. 3D) can be seen, and the route to the property entrance position ENT is displayed. RT and the vehicle position CM are displayed.
Thereby, when approaching the destination property when traveling on the guide route, the entrance can be displayed in an easy-to-understand manner even when the entrance of the property exists in the shadow of the property.
[0008]
(B) Embodiment of the Invention (a) Navigation Device FIG. 4 is a block diagram of the navigation device of the present invention. In the figure, 11 is a map storage medium for storing map information, for example, a CD-ROM, 12 is a CD-ROM control unit for controlling reading of map information from the CD-ROM, and 13 is a position measurement for measuring the current vehicle position. This device is composed of a vehicle speed sensor that detects a moving distance, an angular velocity sensor that detects a moving direction, a GPS receiver, a CPU for position calculation, and the like. 14 is a map information memory for storing the map information read from the CD-ROM, 15 is a remote control for performing menu selection operation, enlargement / reduction operation, manual map scrolling, and the like, and 16 is a remote control interface.
[0009]
17 is a processor (CPU) for controlling the entire navigation apparatus, 18 is a ROM for storing various programs (guide route search processing program, etc.), 19 is a RAM for storing processing results, and 20 is information on the property and information on the entrance position of the property. Is stored in the property database, 21 is a display controller for generating a map image, 22 is a video RAM for storing the map image generated by the display controller, 23 is a menu generating unit for generating a menu image, and 24 is a guide route generating unit. The processing result of the guidance route search processing program stored in the RAM 19 is used. Reference numeral 25 denotes a mark generation unit for the vehicle position, 26 denotes an image synthesis unit that synthesizes and outputs various images, 27 denotes a display device that displays an image output from the image synthesis unit, and 28 denotes a bus.
[0010]
(B) Property Database The property database stores detailed property information such as the property position and the entrance location in association with the property name in the map information stored in the CD-ROM 11. That is, as shown in FIG. 5A, the property database has a hierarchical structure, and the property database LDB1 stores property names, property positions, entrance positions, and image pointers for each property. The image database LDB2 stores three-dimensional image generation data, that is, data for stereoscopic display of the property.
FIG. 5B is an example of data that expresses a planar figure such as a property. The figure vertex is expressed by longitude and latitude information, and attributes such as height information are included so that the figure can be displayed three-dimensionally. Yes. For example, in the polygon as shown in FIG. 5C, the height information for (X1, Y1) to (X4, Y4) is T1, and the height information for (X4, Y4) to (X7, Y7) is If it is T2, three-dimensional display can be performed at heights corresponding to T1 and T2, respectively.
[0011]
The three-dimensional display of the property is performed as follows. That is, as the property height information Ti increases, the height direction compression rate α is increased, and the property plane shape is obtained up to a height H (= Ti · α) obtained by multiplying the property height information by the compression rate. By starting from the ground. For example, the height of the property is classified into three categories of 0 to less than 30m, 30m to less than 90m, and 90m or more, and the height direction compression rate of each division is α1, α2, α3, and the higher the height information, the more compressed Increase the rate (α1 <α2 <α3). In this way, even if the height information of the actual property is large, the property does not protrude from the screen, and even if the property information is small, the property can be displayed three-dimensionally at an appropriate height.
FIG. 6 is an example of property display considering the above. (A) is an example in which the height of the property is less than 0 to 30 m, and (b) and (c) are 30 m to less than 90 m and 90 m, respectively. This is an example of displaying the above properties.
[0012]
(C) Display flowchart for route guidance to the property entrance FIG. 7 is a display flowchart for route guidance to the property entrance according to the present invention.
The navigation device displays a destination setting screen by a pinpoint search such as a telephone number (step 101). Next, a map around the target property is displayed and a menu for the property is displayed (step 102), and the user performs a destination determination operation from the displayed menu (step 103). Next, it is checked whether or not entrance position information exists in the data of the target property selected by the user (step 104). If not, the route to the target property is searched (step 109). On the other hand, when the entrance position information exists, a guide route to the entrance position of the target property is searched (step 105). Next, the route calculated in step 105 and step 109 is displayed on the screen, and route guidance is started (step 106). When the route guidance is started, the vehicle position is grasped, it is determined whether or not the vehicle position has approached the target property (step 107), and if the vehicle has not approached the target property, The processing after step 106 is repeated. On the other hand, when the vehicle position approaches the target property, the guide route is enlarged and displayed together with a map image around the property (step 108, see FIG. 1).
To enlarge the display, first grasp the shape and position of the property as shown in Fig. 8 (a) and adjust it to the map scale of the surrounding map (Fig. 8 (b)) to be enlarged. Make the property shape of size. Then, an enlarged view as shown in FIG. 8 (c) is created and displayed by superimposing the shape of the property having a size corresponding to the map scale with the enlarged map at the property position.
[0013]
(D) Display flowchart when setting the destination FIG. 9 is a display flowchart when setting the destination according to the present invention.
The navigation device displays a destination setting screen by a pinpoint search such as a telephone number (step 201). Next, the peripheral map of the target property BLD (FIG. 2A) is displayed, the property BLD is displayed three-dimensionally, and the menu PM for the property BLD is also displayed (step 202). Next, it is checked whether or not entrance position information exists in the property data (step 203). At this time, if the entry location information does not exist in the data of the property BLD, the map screen display at the time of setting the destination is continued (step 210). On the other hand, if there is entrance position information, it is checked whether the user has selected entrance guidance from the menu PM (step 204). If the entrance guidance is not selected, the processing from step 210 is performed, and if selected, an enlarged view around the destination is displayed and a three-dimensional perspective view of the destination is displayed (step 205, FIG. 2 (b)). . The three-dimensional perspective view is a right oblique perspective view of the target property BLD.
Next, it is determined whether or not the entrance position of the property BLD, which is three-dimensionally displayed, is shaded (step 206). To determine whether or not the entrance position is a shadow, first, the upper left vertex of the flat shape of the property is designated as A point, and the vertexes are designated as B point, C point, and D point in the counterclockwise direction. In FIG. 2B, the side CD is in contact with the road RD1, and the side DA is in contact with the road RD2. Then, since the target property BLD is a right oblique perspective view, the entrance position can be seen if the entrance position is on the AB side or the BC side, and if it is on any other side The entrance will not be visible.
From step 206, if the entrance position is not a shadow of the property BLD and can be seen, the route display to the entrance position and the entrance position is continued as it is (step 211). On the other hand, if the entrance position is a shadow of the property BLD and cannot be seen, the display image is rotated as shown in FIGS. 2C and 2D (step 207). Next, it is checked whether or not a certain time has elapsed since the entrance position was displayed. If not, the display of the entrance position is continued (step 208). On the other hand, when a certain period of time has elapsed, the displayed enlarged view is deleted and the screen returns to the destination setting screen (step 209).
[0014]
(E) Display Flowchart During Guidance Route Traveling to Property Entrance FIG. 10 is a display flowchart during guidance route traveling to the property entrance in the present invention.
The navigation device starts route guidance to the target property entrance set by the user (FIG. 3A) (step 301). Next, it is checked whether the distance from the vehicle position CM to the target property BLD is constant, for example, 300 m or less (step 302). When the distance to the property BLD is not 300 m or less, The guidance route display is continued (step 308), and the processing after step 302 is repeated. On the other hand, when the vehicle position is 300 m or less to the property, an enlarged view around the property BLD (FIG. 3B) is displayed (step 303). Next, it is determined whether or not the entrance position of the property BLD, which is three-dimensionally displayed, is shaded (step 304). If the entrance position is not a shadow of the property BLD and can be seen, the enlarged map display is continued as it is (step 309), and the processing after step 306 is performed. On the other hand, if the entrance position is a shadow of the property BLD and cannot be seen, the display image is rotated as shown in FIGS. 3C and 3D (step 305). Next, it is checked whether or not the vehicle position CM has arrived near the entrance ENT of the property BLD (step 306). If not, the processing from step 306 is repeated. On the other hand, if it arrives, the enlarged view is deleted and the route guidance is terminated (step 307).
[0015]
【The invention's effect】
As described above, according to the present invention, the property entrance position information is included in the database storing the property information, and when the property is set as the destination, the route that leads to the property entrance position is searched and displayed. , The entrance of the property can be displayed so as not to make a mistake.
According to the present invention, when the distance from the own vehicle position to the destination property is less than a certain value during traveling on the guidance route, the map around the property is enlarged, and the entrance position of the property and the entrance position are expanded. Since the guidance route to be guided is displayed, the entrance of the property can be displayed in an easy-to-understand manner when approaching the property that is the destination when traveling on the guidance route. In this case, according to the present invention, since the property is displayed three-dimensionally and the display image is rotated so that the entrance position can be seen, the property close to the property that is the destination when traveling on the guidance route Sometimes, the entrance of the property can be displayed more clearly.
According to the present invention, when the destination is set, the periphery of the property is enlarged, the property is displayed three-dimensionally, and the display image is rotated and displayed so that the property entrance position can be seen. At the time of setting, it can be displayed so that the position where the entrance exists can be understood.
[Brief description of the drawings]
FIG. 1 is a first schematic explanatory view of the present invention.
FIG. 2 is a second schematic explanatory view of the present invention.
FIG. 3 is a third schematic explanatory view of the present invention.
FIG. 4 is a configuration diagram of a navigation device of the present invention.
FIG. 5 is an explanatory diagram of a property database.
FIG. 6 is an explanatory diagram of a three-dimensional display of a property.
FIG. 7 is a route guidance display flowchart to the property entrance.
FIG. 8 is an explanatory diagram of an enlarged display around the property.
FIG. 9 is a display flowchart when setting a destination.
FIG. 10 is a flowchart for displaying a guidance route to a property entrance.
[Explanation of symbols]
BLD ··· Target property ENT · · Target property entrance position RD1 · · Road RD2 · · Road RT · · Guide route to the property entrance location

Claims (4)

A route guidance function that includes a database that stores property information such as property name and property position, sets a predetermined property as a destination, searches for a guidance route to the property location, and guides the vehicle along the guidance route In the property entrance guidance method of the navigation device having
Include the property entrance location information in the database,
When a property is set as a destination, the route for guiding to the property entrance position is searched and displayed, the periphery of the property is enlarged, the property is displayed in three dimensions, and the property entrance position Rotate the display image so that you can see
An article entrance guidance method for a navigation device. A route guidance function that includes a database that stores property information such as property name and property position, sets a predetermined property as a destination, searches for a guidance route to the property location, and guides the vehicle along the guidance route In the property entrance guidance method of the navigation device having
Include the property entrance location information in the database,
When the property is set as the destination, search and display the route that leads to the entrance position of the property,
When the distance from the vehicle position to the destination property becomes less than a certain value when traveling on the guide route, the surrounding area of the property is enlarged, the property is displayed in three dimensions, and the entrance position is visible. Rotate and display images
An article entrance guidance method for a navigation device. In a navigation device having a route guidance function that sets a predetermined property as a destination, searches for a guidance route to the property position, and guides the vehicle along the guidance route.
A database that stores property information such as property name, property position, entrance position of the property,
When the property is set as a destination, a guidance route search unit that searches for a route that leads to the entrance position of the property,
A display unit for displaying the guidance route;
In addition, when the property is set as a destination, the periphery of the property is enlarged and displayed, the property is displayed three-dimensionally, and the display image is rotated so that the property entrance position can be seen. A display control unit,
A navigation device characterized by comprising: In a navigation device having a route guidance function that sets a predetermined property as a destination, searches for a guidance route to the property position, and guides the vehicle along the guidance route.
A database that stores property information such as property name, property position, entrance position of the property,
When the property is set as a destination, a guidance route search unit that searches for a route that leads to the entrance position of the property,
A display unit for displaying the guidance route;
The vehicle position measurement unit that measures the vehicle position,
When the distance from the vehicle position to the destination property becomes less than a certain value when traveling on the guide route, the surroundings of the property are enlarged and displayed, and the property entrance position can be seen. A display control unit for controlling the rotation of the display image,
A navigation device characterized by comprising:

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