JPH07103785A - Navigation device - Google Patents

Abstract

PURPOSE:To set a point including many and unspecified points with a simple configuration. CONSTITUTION:Map data enabling district number data and district shape data such as a current location, a destination, and a passage point to be distinguished and incorporated differently from other data are stored at an information storage 3. When upper-case and lower-case names are input by an input means 11 such as a touch switch, the drawing means of an operation part 5 reads the map data from the information storage device 3 and then draws the detailed figures of the upper-case and lower-case character areas in a details and then displays them on a display means 12. When a location number display is selected from the map screen, the control means of the operation part 5 controls screen transition and then switches to the screen of most detailed screen with the district number which is processed by the drawing means. The configuration allows many and unspecified points such as a friend's home to be set with compact data and at the same time data size to be reduced, thus resulting in an advantageous cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device for guiding and guiding to a destination, and more particularly to a destination, a present location,
The present invention relates to a navigation device having a data structure capable of selectively incorporating map data for displaying details around a point when setting a point such as a passing point.

[0002]

2. Description of the Related Art Conventionally, navigation devices provide route guidance so that a vehicle can be safely visited to a first destination. In recent years, navigation accuracy, operability, visibility, etc. Technological development for improving functions is being actively conducted, and various types of methods have been proposed. This navigation device has a destination setting screen used when setting a route and a display screen that is opened automatically or in response to a driver's request at the time of guidance. The display screen after the start of guidance is a section map that guides a wide area of several sections including the section currently traveling in at least the entire route consisting of a plurality of routed sections, and an intersection for guidance at the intersection. I have a figure.
In addition, provide information such as remaining distance, name, right and left turns, etc. regarding intersections that should turn so that you can definitely travel on the route,
Further, there are those which teach a characteristic object so that the route can be confirmed while traveling, and those which provide voice guidance as well as display.

In such a navigation device,
To set a route, it is necessary to enter the starting point and the destination. If this input determines the starting point and the destination, the route search process is performed from the road information data around the starting point and the destination and between them. Is performed, and the optimum route is set from a plurality of routes. For example, target registration locations such as origins and destinations are divided into genres such as tourism, parking lots, restaurants, etc., and coded separately according to regions such as prefectures and cities, and the code input method and code number are In addition to inputting, a method of displaying a menu and sequentially selecting and inputting from the menu, a method of inputting a position by the coordinate of latitude and longitude, a method of inputting a telephone number, etc. have been proposed. As an example of this type of device, Japanese Patent Application Laid-Open No. 2-1878
No. 98 discloses a telephone number input system, and JP-A-1-173820 discloses a genre-specific or code number input system.

[0004]

By the way, in the conventional destination input method, it is impossible to set all the destinations that one wants to go to. In particular, when trying to set the acquaintance's house as the destination, the telephone number of the acquaintance's house must be registered in the telephone number input method. However, the acquaintance's home is often not registered. Therefore, when the area (area code) including the acquaintance's house is the same, the map is displayed with that area as the representative point. Naturally, since the displayed map covers a wide range, it was difficult to identify the acquaintance's house on the map. To deal with this, it is sufficient to register the telephone number of the acquaintance's house, but the amount of data becomes large and the cost becomes very high.

Although the destination can be set accurately by the code number input method, in order to be able to set an unspecified number of destinations such as acquaintances' houses, for each unspecified number of destinations , Code number must be converted. Then, when the data code is input, the data for converting the code number into the point position information is required, and the user bears the cost for converting this data and the cost for the device necessary to store this data. Must.

Further, in the address input system, a map search function is used to call a map (detailed map) around the destination, and the destination is input on the detailed map. However, the display of the called map is as wide as the map according to the above method, and the amount of information to be displayed is considerably limited by physical restrictions, and in practice, many unspecified people such as acquaintances There is a problem that a point, for example, a destination cannot be set. An object of the present invention is to provide a navigation device capable of setting points including an unspecified number with a simple configuration.

[0007]

In order to achieve the above object, the present invention according to claim 1 provides map data for setting a point by a block number of an address system, topographical data, character data and a block. Information storage means that is composed of number data, and is stored by incorporating the block number data by distinguishing it from other data, input means for inputting a point, and the information based on the point information input from the input means The map data is read from the storage means, and a drawing means for drawing a map screen containing the block information in a peripheral view of the input point is provided. According to the invention described in claim 2, in the invention described in claim 1, the block number data of the map data is composed of a block number and a small letter name. The invention described in claim 3 is the invention according to claim 2, wherein the block numbers are grouped for each address. According to the invention described in claim 4, in the invention according to claim 1, the point input by the input means is a small character name. Further, in the invention described in claim 5, map data for setting a point by the block number of the address system, topographic data,
An information storage unit that is composed of character data, block shape data and block number data, and that is stored by being separately incorporated from the block shape data and block number data and stored.
First input means for inputting a spot, and map data is read from the information storage means based on the spot information input from the first input means, and a map around the input spot is displayed based on the map data. First drawing means for drawing one map screen, second input means for inputting a screen operation signal, and a block of map data from the information storage means based on the screen operation signal from the second input means. Second drawing means for reading the shape data and the block number data and drawing a second map screen for displaying the block information around the input point based on the map data; and the first screen and the second screen. And a control means for controlling the transition.

[0008]

According to the invention of claim 1, by using the map data in which the block numbers are distinguished from each other and incorporated, the points such as the present location, the destination and the passing point are input by the input means. The drawing means reads the map data from the information storage means, draws the map screen containing the block number, and displays the map screen. Entering a spot from this screen will set the spot. Here, when the block number is displayed on the normal map scale, it becomes difficult to see because it is in a mixed state (busy) with other display information, so a further enlarged map is required. But,
Since it is disadvantageous in terms of data capacity to have separate map data for that purpose, the data capacity is reduced by expanding the terrain data and displaying the block information that is embedded in it separately from other areas. be able to. Further, according to the invention of claim 2, when the block number is displayed, the block number and the small letters are displayed at the same time, so that it becomes easy to find which small letter the block number displayed on this screen is. Claim 3
According to the invention, since the block numbers are grouped in address units, the corresponding block numbers can be selectively displayed by designating the address, and can be selected without being confused with the block numbers of other addresses. Further, according to the invention of claim 4, when a small character is designated, only the block number of the corresponding small character is displayed, so that the map can be easily seen and the point can be easily set. Further, according to the invention of claim 5, the map screen for displaying the map around the input point based on the input point information is used as the first map screen, and the block is further configured by incorporating the block number data and the block shape data. Since the detailed map around the point is displayed as the second map screen, it becomes easy to identify the point without knowing the point such as the acquaintance's house in detail.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the hardware configuration of the navigation device of the present invention. FIG. 2 shows the system configuration of the navigation device. The navigation device includes an input / output unit 1 that inputs and outputs information about route guidance, a current position detection unit 2 that detects information about the current position of the vehicle, navigation data necessary for calculating a route, and display guidance necessary for guidance. An information storage device 3 in which data and the like are recorded, a data communication unit 4 which transmits and receives navigation data to and from an information source such as an information center and an electronic notebook, and a route guidance process and a display guidance process necessary for route guidance. , And an arithmetic unit 5 that controls the entire system.

The input / output unit 1 instructs the arithmetic unit 5 to perform navigation processing according to the user's will so that the destination can be input and the driver can display the guidance information by voice and / or screen when needed. At the same time, it has a function of printing out processed data and data of data communication. As a means to realize that function, the input unit inputs the destination by address, telephone number, coordinates,
Touch switch 1 for requesting route guidance
1, a voice recognition device 12, a recording card reading device 13 for reading data recorded in an IC card or a magnetic card
Also, the output part displays the input data on the screen,
A display 14 for displaying a driver's request or route guidance automatically, a printer 15 for printing out data processed by the arithmetic unit 5, data stored in the information storage device 3, and communication data sent from an information center.
And a speaker 16 for outputting route guidance by voice. The user can previously store the destination information in an information storage medium (data storage means) such as an electronic notebook or an IC card, and the recording card reader 13 can read this information to set the destination.

The display 14 is composed of a color CRT or a color liquid crystal display, and is required for navigation such as a destination setting screen, a section map screen and an intersection map screen based on map data and guidance data processed by the arithmetic unit 5. In addition to outputting all screens in color display, this screen also displays keys for setting route guidance, guidance during route guidance, and switching screens. The destination setting screen has at least a screen for displaying a map in which a block number and / or a subordinate name is written as the most detailed view. In particular, the block numbers and subletter names used in the destination setting screen are displayed in different colors for easy viewing.

This display 14 is provided in the instrument panel near the driver's seat, and the driver can confirm the current position of the vehicle by looking at the section map and obtain information on the route from now on. it can. Further, the display 14 is provided with the touch panel 11 corresponding to the display of the function keys, and is configured to execute the above-mentioned operation based on the signal input by the key touch. The input signal generating means composed of the keys and the touch panel constitutes an input section, but the detailed description thereof will be omitted here.

The voice recognizing device 12 constitutes an input signal generating means, and generates a signal for processing by the arithmetic unit 5 after recognizing coordinate information of voice input by the user through the microphone 12a, for example. The current position detector 2 includes a GPS receiver 21 that uses a satellite navigation system (GPS),
Beacon receiving device 22, for example, a data transmitting / receiving device 23 for receiving a GPS correction signal using a ceraphone or FM multiplex signal, an absolute azimuth sensor 24 such as a geomagnetic sensor, for example, a wheel sensor, a steering sensor, etc. A relative direction sensor 25, a distance sensor 26 for detecting a traveling distance from the number of rotations of wheels, and an acceleration sensor 27.

The information storage device 3 is a database in which all data such as map data, display guidance data and voice guidance data necessary for route guidance are recorded. In particular, the map data is configured so that the block number data and block shape data necessary for carrying out the present invention can be incorporated, and these data can be registered and used as necessary. ing. The data communication unit 4 stores a large amount of route guidance information and transmits / receives data to / from an external information center that provides a user's request, a traffic information center that provides traffic information, and an individual information center that provides individual information of various facilities. I do. In particular, this system has a destination setting function for inputting point coordinates using route guidance information. Here, the data transmission / reception unit includes various communication means according to system specifications, such as a radio wave transmission unit, a radio wave reception unit, a wired communication reception unit, and an optical communication reception unit.

The arithmetic unit 5 is a CPU 5 which executes arithmetic processing.
0, program for performing processing such as route search, display control necessary for route guidance, program for performing voice output control necessary for voice guidance and first ROM 51 storing data necessary for it, route searched RAM 52 for temporarily storing guidance information and data being processed.
A second ROM 53 that stores display data necessary for route guidance and map display, an image memory 54 that stores image data used for screen display on a display, and image data from the image memory based on a display control signal from the CPU. The image processor 55 that takes out the image, processes the image, and outputs the image to the display. The voice, phrase, and 1 read from the information storage device 3 based on the voice output control signal from the CPU.
A voice processor 56 for synthesizing a set of sentences, sounds, etc., and converting the analog signal into an analog signal for output to a speaker, a communication interface 57 for exchanging input / output data by communication, and a sensor signal for capturing the current position detection unit. It is composed of a sensor input interface 58 and a clock 59 for entering the date and time in the internal diagnostic information. Here, the route guidance is configured so that the driver can select either screen display or voice output.

The present system calculates an estimated position based on various sensor signals from the current position detecting section and GPS data, and determines the position on the road by correlating the estimated position with the road on the map and GPS data. Go and find your current location. If the correlation with the road data shown on the map is poor, the current position is not displayed on the road shown on the map. In addition, the present system has a function of illuminating the current position on the route to the destination and determining whether or not the position on the lane of the vehicle is approaching a predetermined guide point. That is, the function determines the timing of a predetermined distance before the intersection on the guide route, automatic voice output after the intersection passage determination, or output of intersection information display such as a passing intersection name. A guidance command is issued to the image processor and the voice processor based on the determination result. When the request signal is input, the voice processor is instructed to provide voice guidance of the current location.

Next, the destination setting using the most detailed drawing in which the sublet name and the block number are described will be described. 3 to 5 show a configuration example of a destination setting screen and a screen transition of an operation input by the screen for realizing the point setting function of the present invention. FIG. 14 shows a basic structure of an address system applied to the navigation system according to the embodiment of the present invention. The address system is composed of city / ward names, large letters, small letters, block numbers and house numbers. . The address system used in this embodiment is configured to have addresses for small letters, but as an exception, it may have addresses for large letters. In this case, when the large character is designated, the address for the large character is displayed.

When destination setting is selected from the menu screen, the destination setting menu screen A shown in FIGS. 3 (1) and 4 (1) opens. The destination setting menu screen A is provided with function keys 61 for selecting a place name index, home, current location, telephone number, national map, etc. as a destination input method. For example, if "place name index" is selected from the destination setting menu screen A, FIG.
The place name index selection screen B shown in (2) opens. If you press the telephone number key on the destination setting menu screen A,
The telephone number input screen C shown in (2) opens. This screen C is provided with a ten-key pad 63 for inputting a telephone number and a telephone number display section 64 for displaying the input telephone number, and the destination telephone number is input from the area code.

In FIG. 3B, the place name index selection screen B
Is provided with a function key 62 for selecting a place name by genre such as address, station, and government office. Here, when the address key is pressed, the address input screen D shown in FIG. 5 (1) opens. When a telephone number is input from the telephone number input screen C, the detailed diagram screen E shown in FIG. 5B corresponding to the input telephone number opens. The address input screen D is provided with an address display section 65 for displaying a city name searched by using the place name search function and a large character display section 66 for displaying a large character name by scrolling, and the cursor 67 is changed to a large character name. In addition, when the corresponding large name is touched, the detailed diagram screen E on which the peripheral map of the large name is displayed opens.

In FIG. 5B, the detailed view screen E is provided with a display unit for displaying the contents so that the contents operated on the previous screen can be confirmed. When inputting an address, the selected large character name, for example, "Around Marunouchi" is displayed, and when inputting a telephone, the telephone number input on the screen of FIG. 4 (2) is displayed. The set key 68, the address display key 69, the wide area map display key 70, the scroll key 76 for scrolling the address, and the return key 77 for returning to the previous screen are provided on the screen. Is displayed with eight cursors 72 arranged concentrically and at equal intervals around the point mark 71. By touching any of the cursors 72, the point mark 71 can be moved in the direction of the touched cursor.

When the destination point can be set on the detailed view screen E, after the point mark 71 is located at the destination,
A point is set by pressing the set key 68. Further, on the detailed diagram screen E, it is difficult to specify where the destination is in the large area. Therefore, when it is desired to set the destination point with high accuracy, the most detailed diagram screen F is used. In this case, when the address display key 69 on the detailed view screen E is pressed, the most detailed view screen F displaying the block is opened.

In FIG. 5 (3), the most detailed map screen F displays a map containing city block information consisting of small letter names and block numbers, and, like the detailed map screen E, a point mark 74 and a cursor 75 are provided. Move the point mark 74 using the cursor 75, align the point mark with the destination,
By pressing the set key 73, the spot is set by the block number. If the town shape is added to the town block information and the town block shape is displayed in the most detailed view, it becomes easier to confirm the destination position. Here, it is not necessary to equip the block setting function at the national map level, and for example, only the specific area with high user needs may be equipped.

An input operation for setting the destination point as the address shown in FIG. 11 using the above destination setting screen will be described.
First, if you select the place name index → address from the screen shown in Fig. 3,
After executing the place name search, the address input screen opens and the place name searched "Naka-ku, Nagoya" is displayed in the address display area.
At the same time, the large character name in Naka Ward is displayed on the large character display portion.
By scrolling, display the corresponding major name "Marunouchi", move the cursor to "Marunouchi" by operating the up-down keys, and touch the cursor. Then, the detailed view screen E opens and the Marunouchi area is displayed. Since the block number is not displayed on this detailed view screen, the address display key is pressed to open the most detailed view screen F. On the most detailed view screen, the Marunouchi 1-chome (indicated on the map is Marunouchi (1)) and Marunouchi 2-chome (indicated on the map is Marunouchi (2)) subdivisions and block numbers are displayed in the Marunouchi area. .
Operate the cursor on this screen to position the spot mark at block "10" and press the set key. As a result, the destination point is set by the block number. At the time of route guidance, guidance is given to the set destination block, and from there, the user visits a place in the block marked with "No. 16", such as an acquaintance's house.

Next, another embodiment of destination setting by address will be described. FIG. 6A shows a destination setting menu screen A1 for selecting the destination setting. On the destination setting menu screen A1, the telephone number, address, and
The facility name and registration point can be selected, and a function key for that purpose is provided. As the facility name, for example, a key for selecting a golf course and another facility is prepared as shown in the figure. As the registration point, for example, as shown in the figure, keys for selecting a home, a memory point, a previous departure point, etc. are prepared. When these keys are pressed, a list or setting contents are displayed, and the destination can be set by operating according to the message displayed on the screen.

When the address key is pressed, the address input screen shown in FIG. 6 (2) opens. The address input screen is composed of a plurality of screens D1 to D4 so that the address names divided according to the structure of the address system shown in FIG. 11 can be sequentially specified from the beginning. All address input screens include a pre-designated address display section 80 for displaying the item name selected on the previous screen,
An address display section 81 for displaying the address list following the address specified on the previous screen in the order of Japanese syllabary is provided. The address key 82 for selecting the address displayed on the address display section 81 and the address list of the address display section are displayed. A scroll key 83 for scrolling in the order of Japanese syllabary, a previous key 84 and a next key 85 for skip-displaying a predetermined or next number of address data with respect to the displayed address data, and for returning to the previous screen. A return key 86 is provided. Incidentally, FIG.
The "address" selected on the menu screen A1 is displayed on the previously designated address display portion 80 on the initial screen D1 for inputting an address shown in (2).

By scrolling until the address name to be selected is displayed by operating the scroll key on the initial screen and touching the marker portion of the displayed address, the ward name and the municipality name following the address can be input. The address input screen shown in FIG. 7 (1) opens. When an address is selected on the address input screen that is also displayed, the large character designation screen D3 (see FIG. 7) is displayed.
(See (2)) and the small character designation screen D4 (see FIG. 8A) are sequentially displayed, and the address is designated on each screen. When a small character is selected on the small character designation screen D4, the detailed diagram screen E in which the peripheral map of the corresponding small character name shown in FIG. 8B is displayed opens. In the large character designation screen D3, the large character "Sakae" that is not on the screen is selected. This means that the screen display is scrolled by pressing the scroll key and the displayed large character "Sakae" is selected.

In FIG. 8 (2), the detailed view screen E is provided with a set key 68, an address display key 69, and a return key function key for returning to the subletter designation screen D4, and a point mark 71 is displayed in the map. Eight cursors 72, which are arranged concentrically and at equal intervals, are displayed in the center. By touching any of the cursors, the point mark can be moved in the direction of the touched cursor. When the destination point can be set on the detailed view screen E, the point is set by pressing the set key 68 after the point mark is positioned at the destination. Further, on the detailed diagram screen E, it is difficult to specify where the destination is in the small character area. Therefore, when it is desired to set the destination point with high accuracy, the most detailed diagram screen F is used. In this case, when the address display key 69 on the detailed view screen E is pressed, the most detailed view screen F displaying the block shown in FIG. 9 is opened.

In FIG. 9, the most detailed view screen F displays a map containing block information consisting of block numbers, and
A point mark 71 and a cursor 72 are provided as in the detailed diagram screen E. The point mark is moved by using the cursor, the point mark is aligned with the destination, and the set key is pressed to set the point by the block number. . Further, if the block shape such as a small character boundary or a block boundary is added to the block information and the block shape is displayed in the most detailed view, it becomes easier to confirm the destination position. Here, it is not necessary to equip the block setting function at the national map level, and for example, only the specific area with high user needs may be equipped. In the above-mentioned embodiment, after the sub-letter name is selected, a map with no address display near the sub-letter is displayed, and the address display is selected as necessary. However, as shown in FIG. 10, as shown in FIG. When a subletter name is selected on the screen, the map near the subletter without an address may not be displayed, but a map with an address may be directly displayed as shown in FIG. 10 (2).

Next, another embodiment of destination setting by telephone number will be described. When the telephone number key is pressed on the destination setting menu screen A1 for selecting the destination setting shown in FIG. 11 (1), the telephone number input screen C1 shown in FIG. 11 (2) opens. On the telephone number input screen C1, a message prompting the user to input a telephone number is displayed on the telephone number display portion 64 which displays the telephone number input by the ten keys 63. When the telephone number is entered with the ten-key pad 63, the entered telephone number is displayed on the telephone number display section 64 as shown in FIG. 12 (1), the search is started, and the result is displayed in the pop-up screen shown in FIG. 12 (2). It is displayed on P. If the search is successful, the name of the spot corresponding to the telephone number, for example, the facility "Tokugawa Museum of Art" having the telephone number "052-935-6262" is displayed on the pop-up screen P, and a message indicating that a peripheral map of the corresponding spot is displayed is displayed. To be done. Then, FIG. 13 (1)
The detailed map E of the corresponding point shown in is displayed, and "Tokugawa Museum" is displayed on the display unit as the name of the search point. Detailed view screen E
When the number display key is pressed at, the re-detailed view screen F shown in FIG. 13 (2) is displayed. The location setting operation on any of these screens is the same as the case of the address input described above. In the above-mentioned embodiment, the location setting by the address or the telephone number has been described, but the present invention is not limited to the address or the telephone number, and the location setting is possible by other requirements.

Next, the map data structure will be described. FIG. 15 shows a data structure for distinguishing a block number from others. FIG. 16 shows the data structure of the block number. FIG. 17
Indicates the data structure of a telephone number. The data structure is shown in Figure 15.
As shown in (1), it is composed of topographical data of the detailed map necessary to display the large area and the small character area, character data of the detailed map, and block number data necessary to confirm the block.

As shown in FIG. 16, the block number data is divided into groups corresponding to the number of addresses belonging to the area, and each group is defined by an address spot, an address code, an address data address, and an address data size. . In the address data address, address numbers of different places are defined in the same address spot, and the position of each address number is defined by the coordinates of east longitude and north latitude. As shown in FIG. 17, the telephone number data is grouped for each area / city code, and for each area / city code, the east longitude / north latitude of the representative point, map display scale, registered telephone number address size Is defined by Registered telephone numbers are individually recorded as area / city area code data. The registered telephone number is defined by the subscriber number, name, point east longitude, north latitude, map display scale, and registered point number.

FIG. 18 shows retrieval of address data from position data. When a phone number is entered, if the entered phone number is registered, the position data of the registered point is the east longitude coordinate, and if not, the area / city code area Similarly, the address data file corresponding to the coordinates of east longitude and north latitude is read as the position data of the representative point, and the large letters, small letters, and addresses of the addresses stored in the address data file are searched. By configuring the system in this way, even if it is not a telephone number in particular, by the same process, for example, when XX golf course is selected in genre selection, it corresponds to position data of the golf course, for example, east longitude north latitude coordinate It becomes possible to search for address data to be displayed and display it if there is address data in it.

In the case of using an index as a method of distinguishing a block number from a large name or a target object, as shown in FIG. 19, topographic data, character data, and block number data of the detailed map are associated with addresses. , Each data is accessed using this address as an index. Further, in the case of using an identifier, as shown in FIG. 20, it is composed of topographical data and character data of a detailed map, and the character data in this is composed of an identifier, characters, coordinates in the east longitude direction and coordinates in the north latitude direction. . For example, the characters displayed in the detailed map may not be displayed in the detailed map, only the block may be displayed in the detailed map, or the target object may be displayed in both the detailed map and the detailed map. Good. Further, when the index and the identifier are mixed and used, FIG.
As shown in, the topographical data and the character data are associated with addresses, and each data is accessed using this address as an index.

FIG. 22 shows a data structure for incorporating the block number data and the block shape data separately from each other. FIG. 23
Indicates a built-in that distinguishes the block number data and the block shape data by an index. FIG. 24 shows an installation in which the block number data and the block shape data are distinguished by the identifier. In FIG. 22, the data structure is the geographical data of the detailed map necessary for displaying the large area, the character data, and the boundary of the small character necessary to confirm the block, or the block shape data including the block boundary, the block It consists of number data. As a method of distinguishing the block number and the block shape from each other, in the case of using an index, as shown in FIG. 23, the terrain data of the detailed map,
Each data of the block shape data, the character data of the detailed map, and the block number data is associated with an address, and each data is accessed using this address as an index.

In the case of using the identifier, as shown in FIG. 24, it is composed of topographic data and block shape data of the detailed map, and character data and block number data of the detailed map. Topographical data and block shape data are represented by identifiers, number of nodes, starting point coordinates and ending point coordinates in each direction of east longitude and north latitude,
On the other hand, the character data and the block number data are represented by identifiers, characters, and coordinates of east longitude and north latitude. Here, as a data structure for incorporating the block number and the block shape separately from each other, a data structure in which indexes and identifiers are mixed as shown in FIG. 21 may be used in addition to the above. By adopting such a data structure, the search response becomes faster in the case of an index, and when there is data to be displayed in both the detailed view and the most detailed view in the case of an identifier, double registration is required compared to the index type. The amount of data can be reduced because it is not necessary. Further, what is displayed only in the detailed view can be displayed in the most detailed view by changing the processing software without changing the data.

Next, the display processing in the point setting function by the address input method will be described. FIG. 25 shows the flow of display processing of a map having the selected address. FIG. 26 shows the flow of the operation button drawing process. FIG. 27 shows a flow of display processing of address data of the corresponding address. In FIG. 5 (1), when the cursor 67 is moved to the large name and the portion is touched, the display processing routine of the map having the selected address is started, and first the map data is read from the external storage device 3 and the map data is read. Detailed processing of large area by processing topographical data, character data, and operation buttons respectively.
Is displayed on the screen. In the operation button drawing process, the process shown in FIG.
As shown in, determine whether there is address data for the address, and if there is address data, draw an operation button that includes the address display key, while if there is no address data, do not include the address display key. Draw the button. When the address display key 69 is pressed in the detailed diagram E, the address data display processing routine shown in FIG. 27 is started, the map data is read, and the topographic data, the address number of the corresponding address, and the operation button are read by this map data. Each drawing is sequentially processed and the number data is displayed on the screen in the most detailed view F.

Next, the operation of the navigation system of this embodiment will be described by setting a destination by inputting an address. FIG. 28 shows the flow of navigation processing. Select Address Input on the destination setting menu screen and select the municipality.
The processing of the address display determination flow of is started. After the destination setting is completed in the address display determination flow, condition setting for route search is performed. For example, the driver sets a condition such as a passing point to the destination, a route giving priority to a toll road or a highway, or a route not giving priority to it in the menu. When these settings are completed, a route search is performed, and a route satisfying the set contents is searched. This search result is displayed on the screen, and after confirming the route, it is started to start the guidance to the destination according to the route guidance display.

The address display determination processing in the destination setting will be described in detail with reference to FIG. 29. When the city name is selected on the screen D2 of FIG. 7 (1), the large-scale address list is displayed on the screen D3 of FIG. 7 (2). It is displayed (S100). It is determined whether a large character is selected on this screen D3 (S101) or another key is input (S102). Other keys include, for example, a "return key" and a "scroll key", and when it is determined that a key input has been performed, a process corresponding to the input key is performed. When it is determined that there is no input, the process returns to step 101 and waits for key input.

When a desired large character name is selected from the large character name list, it is judged whether or not there is a small character list for the corresponding large character (S103), and if there is no small character list, a map having the selected address is displayed. (S107). When there is a small character list, the small character address list is displayed on the screen D4 of FIG. 8 (1) (S104). It is determined whether a small character is selected on this screen D4 (S105) or whether another key is input (S106). When there is another key input, the same processing as step 102 is performed. When it is determined that the other key, for example, the "return key" has been input on the detailed view screen E, the processing corresponding to the input key is performed. If it is determined that there is no input, step 1
Return to 05 and wait for key input. When a small character is selected, a display processing routine for a map having the selected address is started, and the map is displayed on the detailed view screen E of FIG. 8 (2) (S10).
7). Was the address display key pressed on this screen (S10
8), whether the set key is pressed (S109), or other keys are pressed (S110).

First, when the address display is selected, the address data display processing routine of the corresponding address is activated to display the address map on the most detailed view screen F of FIG. 9 (S111).
On this screen, it is determined whether the set key has been pressed (S112) or another key has been pressed (S113). When the set key is input, the position of the point mark on the screen is set as the destination (114). Next, the detailed view screen E (S
Similarly, when the set key is input in 109), the destination is set. Other keys in detail view screen E,
For example, when it is determined that the "return key" has been input, the processing corresponding to the input key is performed. When it is determined that there is no input, the process returns to step 108 and waits for key input.

In this embodiment, the display form of the character information is not limited, but since the character information used in the most detailed diagram is increased, the color of the block number is changed to other colors in order to make the character information easier to see. It may be displayed separately from the color. Further, the characters of the detailed diagram and the block number may be displayed in different colors. Also, by not displaying the character data of the detailed map and displaying the block number and subletter name in the block number data in different colors, it is possible to prevent the visibility from being deteriorated due to overlapping characters and display it in the detailed diagram. It is possible to avoid confusion caused by the displayed character data and the character data displayed in the detailed view being displayed at the same position at the same time.
Further, as the character information, not only the characters but also symbols may be displayed as the character information.

Although the setting of the destination has been described in detail above, the present invention is not limited to the destination, and the current position, the passing point, the waypoint, and the registered point can be similarly displayed and the point can be set. it can. That is, needless to say, the present invention can be effectively used not only as a navigation device but also as a map display device.

[Brief description of drawings]

FIG. 1 is a diagram showing a hardware configuration of a navigation device according to the present invention.

FIG. 2 is a diagram showing an example of a system configuration of a navigation device according to the present invention.

FIG. 3 is a configuration diagram showing an example of a destination setting menu screen and a configuration diagram of an address input screen for explaining an operation input when “address” is selected in a place name search.

FIG. 4 is a configuration diagram of a phone number input screen for explaining an operation input when “phone number” is selected from the destination setting menu screen.

FIG. 5 is a diagram for explaining an example of a detailed diagram screen and an example of a most detailed diagram screen and an address input operation.

FIG. 6 is a configuration diagram of a destination setting menu screen for explaining another embodiment of the present invention and a configuration diagram of an address input screen for explaining an operation input when “address” is selected.

FIG. 7 is an explanatory diagram of an address input screen and screen transition for selecting a city name and a large name.

FIG. 8 is an explanatory diagram of an address input screen for selecting a small character name, a small character area screen, and screen transitions.

FIG. 9 is a configuration diagram of a small character area screen with an address display that is opened by pressing an address display key.

FIG. 10 is an explanatory diagram of a screen transition in which a small character area screen with an address display is displayed after selecting a small character name.

FIG. 11 is an explanatory diagram of screens and screen transitions used for destination setting by telephone number.

FIG. 12 is an explanatory diagram of screen transition of telephone number input and search result display.

FIG. 13 is an explanatory diagram of a display screen and a screen transition of a detailed view and a most detailed view by a telephone number.

FIG. 14 is an explanatory diagram of a basic structure of an address system applied by the navigation system according to the embodiment of the present invention.

FIG. 15 is an explanatory diagram of a data structure for incorporating a block number by distinguishing it from others.

FIG. 16 is a diagram showing an example of a data structure of block numbers.

FIG. 17 is a diagram showing an example of a data structure of a telephone number.

FIG. 18 is an explanatory diagram from position data to address data.

[Fig. 19] Fig. 19 is a diagram for explaining incorporation in which block numbers are distinguished by indexes.

FIG. 20 is a diagram for explaining incorporation in which block numbers are distinguished by identifiers.

FIG. 21 is a diagram for explaining incorporation of a block number by mixing an index and an identifier.

FIG. 22 is a diagram for explaining a data structure for incorporating a block number and a block shape separately from others.

[Fig. 23] Fig. 23 is a diagram for explaining incorporation in which a block number and a block shape are distinguished by an index.

[Fig. 24] Fig. 24 is a diagram for explaining incorporation in which a block number and a block shape are distinguished by an identifier.

FIG. 25 is a flowchart of a display process of a map having a selected address.

FIG. 26 is a flowchart of an operation button drawing process.

FIG. 27 is a flowchart of address data display processing of a corresponding address.

FIG. 28 is a system flow of the navigation device.

FIG. 29 is a flow chart of address display determination processing.

[Explanation of symbols]

1 ... Input / output unit, 2 ... Current position detection unit, 3 ... Information storage device, 4 ... Data communication unit, 5 ... Calculation unit, A ... Destination setting menu screen, B ... Place name index selection screen, C ... Telephone number input Screen, D ... Address input screen, E ... Detailed view (large area or small area), F ... Most detailed view (block)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryoji Ogawa 2-19-12 Sotokanda, Chiyoda-ku, Tokyo Equus Research Co., Ltd.

Claims (5)

[Claims] 1. Map data for setting a point by a block number of an address system is composed of topographical data, character data and block number data, and is stored separately from other data. Information storage means, input means for inputting a point, map data read from the information storage means based on the point information input from the input means, and a map including the block information in a peripheral map of the input point A navigation device comprising: a drawing unit for drawing a screen. 2. The navigation device according to claim 1, wherein the block number data is composed of a block number and a letter name. 3. The navigation device according to claim 2, wherein the block numbers are grouped for each address. 4. The navigation device according to claim 1, wherein the point input by the input means is a small character name. 5. Map data for setting a point by a block number of an address system is composed of topographical data, character data, block shape data and block number data, and the block shape data and block number data are other data. Information storage means incorporated and stored separately from each other, first input means for inputting a spot, and map data read from the information storage means based on the spot information input from the first input means, First drawing means for drawing a first map screen for displaying a map around the input point based on map data, second input means for inputting a screen operation signal, and a screen from the second input means. Based on the operation signal, the block shape data and the block number data of the map data are read from the information storage means, and the block information around the input point is displayed based on the map data. The second to draw the 2 of the map screen
And a control means for controlling the transition between the first screen and the second screen.