JPH0997007A - On board navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to retrieve a facility of an unknown name or a facility satisfying desired conditions. SOLUTION: The desired conditions for the desired facility are inputted in a condition input device 13. An index selecting means 12 finds the facility satisfying the inputted conditions out of an index data base 11 and obtains the data 14. A display means 16 retrieves the positions of the respective facilities with a map data base 15 and displays the map near these facilities and information on a display 17. The index data base 11 is formed as a reloadable medium so that the index data is updated by receiving the information from a company providing the latest information all the time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted navigation device mounted on an automobile or the like.

[0002]

2. Description of the Related Art In recent years, car navigation systems have rapidly become popular, and have greatly contributed to the realization of a more comfortable and convenient car society. The car navigation system has a function that, when you want to see the facility or place name you are looking for on a map, search for the facility or place name and display it on the display.

FIG. 5 shows the structure of an index search device in a conventional vehicle-mounted navigation device. In FIG.
Reference numeral 1 is an index database, 2 is an index selection means, 3 is a condition input device, 4 is facility data selected by the index selection means 2, 5 is a map database, and 6 is display means. Yes, 7 is a display.

The operation of the index search device configured as described above will be described. First, the name of the facility to be displayed is input from the condition input device 3. As an input method, ○
○ Prefecture → △△ City □□ There are two ways to select, limited to the ward and administrative area, or to enter the facility name directly. Then, the index selection means 2 searches the index data 1 for data having the input name, and creates the facility data 4 for the selected facility. Next, the display unit 6 uses the selected facility data 4 and the map database 5 to display a map centering on the selected facility on the display 7.

FIG. 6 shows the data structure of the index when selecting only in administrative areas. In this case, the data has a tree structure. FIG. 7 shows the transition of screens during input. This is the display when "Tsuzuki restaurant in Tsuzuki-ku, Yokohama-shi, Kanagawa" is selected.

FIG. 8 shows the data structure of the index when the facility name is input. An example of the screen during input is shown in FIG. This is the display when "Tsuki restaurant" is entered.

As described above, even in the above-described conventional index search device, the facility whose name is known in advance can be searched and displayed by directly inputting its name.

[0008]

However, the above-mentioned conventional index search device cannot search for facilities whose names are unknown or which satisfy the conditions desired by the user.

The present invention solves such a conventional problem, and provides an in-vehicle navigation device capable of searching a facility whose name is unknown or a facility satisfying a user's desired condition. With the goal.

[0010]

To achieve the above object, the present invention provides an index database storing index data for each facility type, a map database storing map data, and a condition desired by a user. A condition input means for inputting a plurality of items, an index selection means for searching facilities which satisfy the inputted conditions from the index database, and a map including the facilities and information about the facilities from the map database for the selected facility data are displayed on the display. And a display means for displaying.

In addition to the above configuration, the present invention is capable of rewriting the index database that stores index data for each facility type, and the index database is applicable based on information obtained from a company that always provides the latest facility information. It is provided with a means for updating the data to be processed.

[0012]

Therefore, according to the present invention, when using the search from the index of the navigation system, if the user inputs the desired condition for the facility he is looking for,
This has the effect of being able to search for and display facilities that meet the conditions.

Further, according to the present invention, the index database is a rewritable medium, and means for acquiring the latest index data of the facility is provided so that the data can be rewritten when the facility information is changed. This makes it possible to always display the location of the facility based on the latest information.

[0014]

【Example】

(Embodiment 1) FIG. 1 shows the configuration of a first embodiment of the present invention. In FIG. 1, 11 is an index database, 12 is index selection means, 13 is condition input means, 14 is selected facility data, 15 is a map database, 16 is display means,
Reference numeral 17 is a display. Although the configuration is almost the same as that of the conventional index search device, in the condition input device 13, in the present invention, the destination facility is not the name of the facility,
Enter the desired conditions. The index selection means 12 searches the index database 11 for a facility that satisfies the input condition, and outputs data 14 of the selected facility. The condition input device 13 is designed to specify a distance, and a target included in the range with the specified distance centered on the current location as a radius is displayed. From the position of the facility data 14 satisfying the input conditions and the map database 15, the display unit 16 displays on the display 17 a map including the selected facility centered on the current location and information about the facility.

FIG. 2 shows the data structure of the index in this embodiment. As an example, data about “restaurant” is shown. The data items (type of food, course fee, etc.) will vary depending on the type of facility (restaurant, golf course, etc.).

Next, a specific example of the first embodiment will be described. FIG. 3 shows a screen transition when a condition is input in this embodiment.

When it is desired to know the place of a restaurant for eating, first, "restaurant" is selected as the type of facility from the index item (screen 21). Next, "Indian food" is selected as the type of food from the items of the restaurant index (screen 22). Next, in the course fee item, "10,0
Enter "00 yen" (screen 23). The item “within □□ km” is used to determine how far away from the current location the restaurant is displayed in a straight line distance, and the range is input. Next, a restaurant that satisfies the conditions entered from the index data (in this example, 10,000
You can eat course meals within 0 yen and search for Indian restaurants within □□ km) to create facility data. A list of restaurant names that satisfy the conditions is displayed on the screen (screen 24). Select one from the displayed restaurant names and press either the "Map" or "Information" button on the screen. When "Map" is selected, a map from the current location to the restaurant is displayed (screen 25), and when "Information" is selected, more detailed information about the restaurant is displayed (screen 26). It is possible to switch to the original screen 24 by pressing the "return" button on either screen, and it is possible to display information or a map of another restaurant. These two types of display methods make it possible to search for a restaurant that is closer to the user's wishes.

(Embodiment 2) FIG. 4 shows the configuration of a second embodiment of the present invention. FIG. 4 is a diagram showing a structure of the structure of FIG.
It is made possible to receive from 8. Then, the information receiving / updating device 19 receives the information from the company and rewrites the index database 11 recorded in the rewritable medium 20 when the facility information is updated. This makes it possible to always have the latest facility information, and to use this accurate information to guide users more accurately.

Next, a specific example of the second embodiment will be described. In the restaurant described in the first specific example, it is conceivable that the contents of regular holidays and dishes (price, menu, etc.) may change. Therefore, a readable / writable IC card is provided in the navigation system, and the information receiving / updating device 19 receives the information from the company 18 that provides the information of the restaurant and rewrites the corresponding portion of the rewritable medium 20. To do.

[0020]

As is apparent from the first embodiment, the present invention can be applied to a facility whose name is not known or a facility satisfying a desired condition when searching the location of the facility from the index. By inputting the condition desired by the user such as the feature of the facility, the facility satisfying the condition can be searched and displayed.

As is apparent from the second embodiment, the present invention deals with updating of facility information by connecting a rewritable medium and a device for acquiring the latest index data of the facility. Has the effect that it becomes possible.

Therefore, according to the present invention, flexible and highly satisfying information is provided and the service to the user is improved by responding to various conditions from users who have different hopes. You can

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an index search device according to a first embodiment of the present invention.

FIG. 2 is a data structure diagram in the first embodiment of the present invention.

FIG. 3 is a screen transition diagram of an index function according to the first embodiment of this invention.

FIG. 4 is a system configuration diagram of an index search device according to a second embodiment of the present invention.

FIG. 5 is a system configuration diagram of a conventional index search device.

FIG. 6 is a data structure diagram in a conventional example.

FIG. 7 is a screen transition diagram of the index function in the conventional example.

FIG. 8 is another data structure diagram in the conventional example.

FIG. 9 is a screen selection diagram of another index function in the conventional example.

[Explanation of symbols]

 11 Index Database 12 Index Selection Means 13 Condition Input Device 14 Selected Facility Data 15 Map Database 16 Display Means 17 Display 18 Company Providing Facility Information 19 Information Receiving / Updating Device 20 Rewritable Medium

Claims (2)

[Claims] 1. An index database storing index data for each facility type, a map database storing map data, condition input means for inputting a plurality of conditions desired by a user, and facilities satisfying the input conditions. An in-vehicle navigation device comprising: an index selecting unit that searches the index database for a selected facility data; 2. An index database storing index data for each facility type is rewritable, and means for updating the corresponding data of the index data based on information obtained from a company that provides the latest facility information is provided. The vehicle-mounted navigation device according to claim 1.