JP3303633B2 - Vehicle navigation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular navigation system for guiding a route to a destination, and more particularly to a vehicle navigation system having a function of setting a passing point on an expressway or a toll road as a passing road. The present invention relates to a vehicle navigation apparatus having a setting function for selecting a road satisfying a passing point condition and guiding the vehicle to a destination through a passing point set on the road or the selected road.

[0002]

2. Description of the Related Art A vehicular navigation apparatus having a function of setting a passing point and guiding to a destination through the passing point is disclosed in, for example, Japanese Patent Laid-Open No. 2-3899.
And JP-A-6-337216. The conventional concept of destination setting is to guide the user to a destination by a route searched based on the input destination. The set passing point is set as the first destination, and the destination is set as the second destination. One that guides to the destination through the first destination, one that sets a plurality of scheduled passing points on the map, and guides to the next scheduled passing point when passing within a certain distance from the scheduled passing point, etc. is there. In addition, for example, Japanese Patent Application Laid-Open
No. 112 proposes a guide for an optimal final guide point for a set destination.

In inputting these destination settings, a selection operation is repeated from a facility list or the like to derive a registered destination stored in advance in a storage device, and a method for setting the registered destination as a destination or a registered destination A method is known in which a map centered on a point is further scrolled to set a desired point as a destination. The purpose of inputting the passing point is to set a passing road to go to the destination through a road selected by the user, in addition to setting the destination as a destination on the route. At present, it is possible to set a uniform general road or a uniform general road as a passing point. However, when the road is set to be a uniform general road, it cannot be a passing road on an expressway or an urban expressway.
In the case where the guide point of the passing point is set uniformly on the nearest road, if the passing point is set to a highway or a store along the city expressway, for example, the guide will be performed on the expressway or city expressway. was there.

In the process of setting a destination, a user stores registered location data (point data corresponding to a telephone number, a facility name, or an address, etc.) in a storage device, and the user selects and sets the data from a menu. Is not used, the destination is set, for example, when the cursor is moved from a previously displayed map to set the cursor position as the destination, or the registered location is registered using the registered location data. When displaying a map centered on the point corresponding to, and then moving the cursor to set the desired point as the destination, the set position is often not on the guide road, so the search end point, that is, the final route Guide points need to be set. JP-A-4-220112, JP-A-6-3
In the method proposed in Japanese Patent No. 37216, a point on a road (a guideable route) closest to a set destination (passing point) is set as a guide point (final route or scheduled passing point).
When a destination (passing point) is set in this way, a point on the road closest to the input destination is always set as a guide point by referring to the road data. There is a problem that a guide point may be set on a road that is not desired by the user in an area or the like where the vehicle is traveling.

[0005] It is an object of the present invention to provide a desired-passing place setting function for searching for a road in accordance with a desired-passing place condition input by a user, selecting the searched road and setting it as a desired passing place. It is an object of the present invention to provide a vehicle navigation device having the same. Another object of the present invention is to provide a vehicular navigation device that can be selected when there are a plurality of roads of different road types as roads satisfying the input desired pass-through location condition.

[0006]

According to a first aspect of the present invention, there is provided a navigation apparatus for a vehicle, comprising: destination setting means for setting a destination; Location setting means, route search means for searching for a route to be guided based on the set destination and / or desired travel location, and a road within a predetermined range with respect to the desired travel location set by the desired travel location setting means And a control means for causing the user to select one of the searched roads and setting the selected road as a desired road to pass. Claim 2
The invention of claim 1 is characterized in that, in the invention of claim 1, display means for displaying the name of the searched road is provided. A third aspect of the present invention is characterized in that, in the first aspect of the present invention, a display means for displaying a type of the searched road is provided. According to a fourth aspect of the present invention, in the first aspect of the present invention, there is provided a display device for highlighting the selected road. According to the first aspect of the present invention, a route to be guided is searched based on the destination / desired place set by the destination setting means and the desired place setting means. The control means searches for a road within a predetermined range with respect to the desired place set by the desired place setting means, and allows the user to select one of the searched roads. Set as the desired road.
This provides a means for allowing the user to select a plurality of roads near the desired place of passage, so that guidance intended by the user can be provided.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a system configuration of the navigation device. In FIG. 1, a navigation device includes an input / output device 1 for inputting and outputting information relating to route guidance, a current position detection device 2 for detecting information relating to the current position of the vehicle, navigation data necessary for calculating a route, and a navigation device required for route guidance. And a central processing unit 4 that executes display / voice guidance processing necessary for route search processing and route guidance and controls the entire system.

The input / output device 1 allows input of information necessary for setting a destination such as a departure point, a destination, a passing point, and the like, and enables a driver to output guidance information by voice and / or display it on a screen when required. In addition, it has a function of instructing the central processing unit 4 to perform a navigation process according to the user's will, and printing out the processed data, data of data communication, and the like. As a means to realize the function, the input unit uses an address, a telephone number,
The touch switch 11 is used to input coordinates and the like and to request a route guidance. The output unit is a display 1 for displaying input data on a screen, or displaying a driver's request or automatically displaying route guidance on a screen.
2. Data and information storage device 3 processed by the central processing unit 4
13 that prints out data and communication data stored in a printer and a speaker 1 that outputs route guidance by voice
It consists of four.

The display 12 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, an intersection map screen based on map data and guidance data processed by the central processing unit 4. All the screens are output in color display, and on this screen, keys for setting route guidance, guiding during route guidance, and performing screen switching operations are displayed. The display 12 is provided with a touch switch 11 corresponding to the display of the function keys, and is configured to execute the above-described operation based on a signal input by key touch. The current position detecting device 2 is a satellite navigation system (G
PS) using a GPS receiving device 21 and a beacon receiving device 22, for example, a car phone or a G using an FM multiplex signal.
A data transmitting / receiving device 23 for receiving a PS correction signal, for example, an absolute direction sensor 24 including a geomagnetic sensor,
For example, a relative azimuth sensor 25 including a wheel sensor and a steering sensor, and a distance sensor 26 for detecting a traveling distance from the number of rotations of the wheel detect a traveling azimuth and a position coordinate of the vehicle.

The information storage device 3 stores, for example, a map data file storing map information, an intersection data file storing information on intersections, and information on roads such as road types and starting points and ending points of each road necessary for route guidance. Road data file, node data file storing the east longitude and north latitude coordinates at one point on the road, location coordinates and features of facilities such as gas stations and convenience stores classified by genre according to the purpose of use It is composed of a guide point data file or the like that stores guide information and the like related to it.

The central processing unit 4 has a CP for executing arithmetic processing.
U40, a first ROM 41 storing a program for performing processing such as route search, a display control required for route guidance, a voice output control required for voice guidance, and data necessary for the program, a destination and a passage. A RAM or non-volatile storage means for temporarily storing information such as a registered destination used when setting a desired place, road information after road search or re-search (road sequence data), route guidance information, and data during arithmetic processing. A memory 42 composed of a memory or the like; a second ROM 43 storing display data necessary for route guidance and map display; an image memory 44 storing image data used for screen display on a display; a display control signal from the CPU An image processor 45 which takes out image data from an image memory based on Audio data read from the information storage device 3 based on the voice output control command from (phrase 1
(Synthesized sentences, sounds, etc.), converts them into analog signals and outputs them to a speaker, a voice processor 46, a communication interface 47 for exchanging input / output data by communication, and a sensor signal of the current position detection device 2. And a clock 49 for writing the date and time in the internal diagnostic information. Here, the desired place to be passed is set as a passing point in the case of a sightseeing spot, a historic spot, a hotel or an inn, etc.
In the case of a road to be passed, the road is set as a passing road. The route guidance is configured so that the driver can select either the screen display or the voice output.

As constituent elements of the present invention, the destination setting means includes a CPU 40 for executing a program relating to a destination setting process stored in the first ROM 41, and a touch of the input / output device 1 for inputting a destination and outputting a map display and the like. Switch 11
And a display 12, an image processor 45 for performing display processing such as map display, and an input / output processing means including an interface 47 for inputting a destination input signal from the touch switch 11 to the central processing unit 4.
The desired pass location setting means executes a program for executing a desired pass location setting process stored in the first ROM 41.
U40 is constituted by the above-mentioned input / output processing means for setting a desired passage place. In particular, the program relating to the process of setting a desired place to pass includes a search processing function for roads within a predetermined range with respect to the desired place to pass based on the input desired place to pass, and a condition of a desired place to pass to the searched road. Setting processing function, selection processing function of the road searched based on the set conditions of desired passing place, desired place moving processing function to forcibly move the desired passing place on the road based on the selected road, desired passing In connection with location relocation processing, the passing point mark is displayed at a set point, the closest road when the set point is not on a guideable road, or the closest intersection or junction. It has a display processing function for displaying marks on the road. The route searching means executes a program for searching for a route stored in the first ROM 41.
40.

The present system calculates an estimated position based on various sensor signals of the current position detection and GPS data, and determines a position on the road by correlating the estimated position with the road on the map and the GPS data. Find the current position. The system also illuminates the current location with the route to the destination,
A function is provided for determining whether or not a position on the lane of the host vehicle is approaching a predetermined guide point. That is, the above function determines a predetermined distance before the intersection on the guide route, an automatic voice output after the intersection is determined, and a timing of displaying the intersection information such as the name of the passing intersection. A guidance command is issued to the image processor and the audio processor based on the result of the determination. Further, when the request signal is input, it instructs the voice processor to provide voice guidance of the current position. In the voice guidance of the present system, voice data (phrases, a single sentence, sound, etc.) read from the information storage device 3 is synthesized, converted into an analog signal, and output from a voice output unit.

Next, a data structure relating to a destination setting having a function of setting a desired place to pass will be described. The road data is a set of straight lines connecting the nodes at both ends of the road, and includes, for each node, its coordinates, the number of roads passing through it, the angle of each road, and the like. The guide road to the destination is numbered sequentially from the road that travels first from the departure point, and all the roads connected at that point are numbered at branch points, junctions, and intersections. The guide road is determined based on these road numbers under predetermined conditions. Therefore,
The guide route is composed of a plurality of guide roads, and the guide road data is stored.

The data structure of each road constituting the guide road stored in the information storage device 3 will be described. FIG.
In the guide road data, the road number, length, road attribute data, shape data address and size, and guide data address and size are defined for each road. The shape data indicates the shape of the road by the number of nodes, and each node is defined by east longitude / north latitude coordinates. Here, when calculating the display remaining distance to the guidance intersection, when using the intersection angle of the intersecting road as the information of the next traveling road,
The shape data is provided with data relating to the angle at which the next traveling road intersects the currently traveling road.

The guidance data includes intersection names, caution data,
It is defined by the road name, road name voice data address and size, and destination data address and size. The destination data is defined by the destination road number, destination name, destination name voice data address and size, destination direction data, and travel guidance data. Destination direction data is invalid,
Unnecessary, straight ahead, rightward, diagonally rightward, leftward, diagonally leftward, and leftward return directions. When guidance is provided at a junction, an intersection, or the like, destination data in the guide road data is searched, and guidance contents to be output (mainly guidance expressions added to fixed guidance expressions) are determined based on the destination data. . This destination data is data added especially when a difference in the angle between a plurality of roads exiting from a junction is small, such as a junction where it is difficult to determine the direction only from the angle of the exit direction from the intersection, such as a high-speed exit, etc. It is.

Various data constituting the guide road data will be described. Road attribute data is data representing physical characteristics of roads such as elevated, underpass, number of lanes, etc.As for elevated / underpass data, information on the presence / absence of overpass, next to elevated, underpass, underpass, and lane number data Is presence / absence information of three or more lanes, two lanes, one lane, and no center line. In addition, when the applicable road is a branch road with an overpass,
"Beside the elevated". The same goes for tunnels. The road name data is defined by a road type and a number within the type. The road type is classified into (name) expressways, urban expressways, toll roads, and general roads such as national roads and prefectural roads. Especially at high speed, city height, and toll, it is defined by the main line and the installation. The attachment is a road connecting the main road and the main line and the main line.

The caution data is data for providing information for calling attention to changing road conditions, and defines, for example, railroad crossings, tunnel entrances, tunnel exits, width reduction points, no caution points, and the like. Is done. Driving guidance data is information provided to drive safely and reliably for the next traveling guidance while traveling on a wide road or a road with two or more lanes. Information "from the right" and similarly "from the left" are given as guidance when changing. In addition, information such as "from the center" as guidance for passing through an intersection, that is, straight ahead, or "none" when guidance is unnecessary is given so as to continue straight traveling along a road.

Next, the input of the destination setting will be described.
In inputting the destination setting, a selection operation is repeated from a facility list or the like to derive a registered destination stored in the storage device in advance, and in addition to a method of setting the registered destination as the destination, a method of setting the registered destination There is a method of further scrolling a map centered on a point to set a desired point as a destination. FIG. 3 shows an example of a screen configuration for selecting a destination setting. On the destination setting screen A, as a destination input method,
A telephone number, an address, a facility name, and a registration point can be selected, and a function key 5 for the selection is provided. For the facility name, for example, a key for selecting a golf course and other facilities is prepared as shown in the figure. The registration points are provided with keys for selecting, for example, a home, a memory point, and a previous departure point, as shown in the figure. When these keys are pressed, a list of facilities and registered contents relating to registered points are displayed, and a destination can be set by operating according to a message displayed on the screen. When the destination setting is completed, a map screen (confirmation screen) B for confirming the end is displayed, and a destination setting mark 6 is written on the map together with a message of the completion of the destination setting. This confirmation screen is displayed, and after a predetermined time has elapsed, the search condition setting screen C of FIG. 4 is opened.

When a destination is set, a route search which is usually minimized in terms of time or distance is performed, but a route search taking into account conditions desired by the user is also possible. FIG. 4 is an example of a search condition designation screen that is opened when a function key such as an address is pressed on the destination setting screen (FIG. 3), that is, opened after the destination is set. In the following, a “passing point” is used in the description of a desired place to pass. The search condition can be specified with respect to a passing point and a toll road, and the search condition specification screen C is "specified" or "not specified" for the passing point and "priority" or "not specified" for the toll road. Is provided, and when setting a search condition of a passing point or a toll road, "specify" and "priority" are selected. For example, when the passing point is set to “designate”, the passing point setting screen D opens. On the screen D, a telephone number, an address, a facility name, and a registered point are provided as keys 52 for setting a passing point. These pass point setting menus are the same as those of the destination setting menu on the destination setting screen A shown in FIG.

On the passing point (desired place) setting screen D,
For example, when "address" is selected, an address name divided according to the structure of the address system is input. That is, the address input screen is composed of a plurality of screens E to H so that address names classified according to the structure of the address system can be sequentially specified from the beginning. All address input screens are designated address display sections 53 for displaying the item names selected on the previous screen.
And an address display unit 54 for displaying an address list following the address specified on the previous screen in the order of the Japanese syllabary, an address key 55 for selecting an address displayed on the address display unit, and an address list of the address display unit. Scroll key 56 for scrolling in the order of the Japanese syllabary, Previous key 57 and Next key 58 for skipping a predetermined number of address data before or next to the displayed address data, and Returning to the previous screen A return key 59 is provided. The "address" selected on the passing point setting menu screen D is displayed on the previously designated address display section in the initial screen E for address input shown in FIG.

Scroll until an address name to be selected is displayed by operating a scroll key on the initial screen E,
By touching the marker part of the display address, an address input screen F for inputting a ward name and a municipal name following the address is opened. When an address is selected on the displayed address input screen, a large letter designation screen G and a small letter designation screen H shown in FIG. 6 are sequentially opened, and an address is entered on each screen. When a small character is selected on the small character designation screen H, a detailed diagram screen I displaying a surrounding map of the small character name shown in FIG. 7 is opened. The surrounding map of the subscript name corresponds to the subscript point, stores the coordinates of the representative point of the subscript, and displays the coordinates with the coordinates of the selected point as the center. In the large letter designation screen G, the large letter “Sakae” which is not on the screen is selected. This means that the screen display is scrolled by pressing the scroll key and the displayed large letter “Sakae” is selected.

Referring to FIG. 7, a detailed map screen I is a set key 62 for moving a cursor 61 to a passing point on a map 60 and setting the center of the cursor as a passing point, and a return key 63 for returning to a small letter designation screen H. And eight cursor movement marks 61 arranged concentrically and at equal intervals around a circular cursor position mark 61a in the map.
A cursor mark consisting of b is displayed. By touching any one of the cursor movement marks 61b, the cursor mark can be moved in the direction of the touched arrow. When a passing point is set on the map, if the cursor mark is located on only one road, the passing point is set on that road. However, as shown in the figure, a plurality of cursor marks (cursor position marks 61a) are provided. It may be located across a road, for example, a highway and a general road, or a plurality of general roads. In such a case, it is necessary to select whether the passing point is a highway, a general road, or which general road among general roads. The passing point condition which determines which road is selected as a passing point from a plurality of roads is designated by a passing point condition setting screen J which is opened by pressing the set key 62 after positioning the cursor mark near the passing point. I do.

The passing point condition setting screen J is provided with keys for displaying road information to be selected as passing points and setting the passing points when there are a plurality of roads near the cursor mark on the map of the detailed diagram I. I have. In the illustrated example, road information is displayed on the selection key 64. For example, the display indicates that there is Nagoya Expressway and National Route 1 near the cursor mark. When "Nagoya Expressway" is selected, a passing point is set on the expressway, and the completion of setting of the passing point is displayed on the screen shown in FIG.
Is marked on the highway. Modify key 6 on this screen
When 5 is pressed, the screen returns to the detailed view screen I in FIG. 7, and the position of the passing point can be set again. In the method of displaying and guiding the destination and the passing point based on the set point, the input point is displayed as the passing point and the destination, and set in the process of actually guiding to the point on the selected road Or the display of the passing point or destination on the selected road may be transferred. The present invention can be implemented by any of these display and guidance methods.

Next, a processing procedure for setting a destination including a passing point will be described. First, the destination setting process will be described with reference to the overall flow shown in FIGS. In the destination setting process, the input of the registered destination is determined (S1),
The following processing is performed based on the result. When a registered destination is input, data of the registered destination and map data including the registered destination are obtained (S2), and a map centering on the registered destination is displayed (S3). If the mark displayed on the map is the desired destination, the set key is pressed (S4), and the setting is performed with the registered destination as the destination (S5). When the position of the destination displayed on the map is to be changed, the cursor is displayed by pressing the position change key (S6). A method other than the input of the registered destination, for example, when a telephone number is input, a search based on the telephone number is executed, map data of the point is acquired, and a cursor is displayed on the map (S6).

From the judgments in steps S1 and S4, when the cursor is displayed on the map, the destination is set by touching the arrow of the cursor, the center position of the cursor is moved to the destination or near the destination (S7), and the ENTER key is pressed. Is used to input a point (S8). Thereafter, the setting is performed with the cursor center position as the destination (S9). When the destination setting is completed, a confirmation screen display process (not shown) is executed, and the set destination is confirmed on the confirmation screen. Thereafter, a screen for designating a search condition is displayed (S10). The selection of the passing point is determined (S11), and when the passing point is not specified, the destination setting processing is ended. When the passing point is set to “designate”, it is determined whether the passing point is to be registered as a registered place (S1)
2). When a pass point is specified by a method other than the registered place, the setting process is performed according to the input pass point (S17).
When the registered place input is selected and the registered destination is entered (S1
3) The registered destination data is acquired, and a map centering on the registered destination is displayed (S14). If the mark displayed on the map is a desired registration destination, the set key is pressed (S15) to set the registration destination as a passing point (S16). When the position of the registered destination displayed on the map is to be changed, the cursor is moved by pressing the position change key, the point input is determined by the ENTER key, and the setting processing is performed with that point as a passing point (S17). ).

Next, the passing point setting process in step S17 will be described with reference to FIGS. Here, it is assumed that the range of the road searched for the desired place to pass is within a predetermined distance from the input point as a center. In FIG. 11, when the input for the destination setting and the passing point setting is completed by the method selected on the destination setting screen (S100), a cursor mark is displayed on the map (S101). When the cursor mark is on the selected road, the user presses the ENTER key (S103). On the other hand, when the cursor mark extends over a plurality of roads, is between a plurality of roads, or selects another road, the cursor mark is moved (S102). That is, the user touches the cursor movement mark and moves the cursor mark to the vicinity of the passing point. When the ENTER key is pressed (S103), the coordinates of the center position of the cursor mark are obtained (S104), and node data within a predetermined distance and road data corresponding to the node data are obtained from the coordinates (S105, S10).
6). Here, the number of acquired roads is determined (S10).
7) If there are two or more roads, the processing from step S111 shown in FIG. 13 is performed. On the other hand, in the case of a road of less than two, a passing point is set by the processing of FIG.

In FIG. 12, first, it is determined whether the obtained road is "0" or "1" (S108). If the road is "0", the position on the road closest to the cursor center position is obtained and passed. It is set as a point (S109). When the road is "1", the closest position on the selected road from the cursor center position is obtained and set as a passing point (S110). In FIG. 13, when the number of acquired roads is two or more, the setting of the passing points according to the road names and the road types of all the roads is performed. First, i = 1 is set (S11
1) Perform a road name search for the acquired road (S11)
2) It is determined whether there is a road name (S113). For a road having a road name, a road name is acquired (S11).
4) For a road without a road name, a road type is acquired (S115). Regarding the acquired road, step S11
2 to S115 are performed (i = i + 1). When the search is completed for all the acquired roads (S116), a display MODE process for the searched road is executed.

With respect to the combination of the road name and the road type for the road obtained in the above processing, it is determined whether or not a plurality of roads having no road name and the same road type have been obtained (S117). That is, if the acquired roads are, for example, the three roads of the Nagoya Expressway, the prefectural road (no name), and the prefectural road (no name), the road type of each road is further determined (S118). Or Nagoya Expressway, Prefectural Road 3
In the case of a line or a prefectural road (no name), the display MODE = 1 is set. As a result of the determination in step S118, if all the acquired roads have no name and are not of the same road type, the display mode is set to 2, and otherwise, the display mode is set to 3. When the display MODE is determined, the selection screen display processing of FIG. 14 is performed. Step S11
7. The display MODE determined in S118 is determined (S1).
19), a menu display process for each display MODE is performed. When the display MODE = 1, the road name and the road type, for example, a national road, a prefectural road, and the like have been acquired. Therefore, for example, the corresponding road name and the road type are menu-displayed as shown in FIG. 16 (S
120). When the displayed road is selected (S121),
The closest position on the road selected from the cursor center position is acquired and set as a passing point (S122).

When the display MODE = 2, the road type and the road type are menu-displayed as one of the same type (S123). When the displayed menu is selected (S12
4) It is determined whether the selected menu is a plurality of menus of the same type (S125). If a plurality of menus of the same type have not been selected, the closest position on the selected road is acquired from the center position of the cursor and set as a passing point (S126). When a menu having a plurality of the same types is selected, a detailed map of the map is displayed. In FIG.
The map is displayed as a detailed view (S127), and a cursor mark is displayed on the map (S128). When the cursor mark is on the selected road, the enter key is pressed (S130). On the other hand, when the cursor mark extends over a plurality of roads, is between a plurality of roads, or selects another road, the cursor mark is moved (S129). Touching the cursor movement mark moves the cursor mark to the vicinity of the passing point. When the ENTER key is pressed (S130), the coordinates of the center position of the cursor mark are obtained (S131), and the coordinates on the road selected from the cursor center position are obtained. The closest position is acquired and set as a passing point (S132). Here, the position on the road closest to the cursor position at the time of the ENTER key input may be set even if the cursor is not on the road.

When display MODE = 3, the process is the same as that in the case where a plurality of menus having the same type are selected in the above-described step S125 (FIG. 15), and the description is omitted. Display MO
An embodiment in which DE = 2 will be described. In this example, there are a plurality of roads having the same road type and no road name among roads existing within a predetermined distance from the center position of the cursor mark. For example, in the map of FIG. 17, the cursor mark is located over the expressway and the two prefectural roads. When the set key is pressed in this state, the passage condition setting screen opens,
Expressways are displayed by road name and road type, and prefectural roads are two, and since they are prefectural roads, they have the same road type, so they are displayed by one road name. Here, when a prefectural road is selected, a map is displayed in a detailed view as shown in FIG. 19, and a cursor mark is displayed on the two prefectural roads.
By moving to one prefectural road and pressing the set key,
The passing point is set, and a passing point setting mark and a message indicating the completion of the setting are displayed on the map on the screen. When changing the position of the passing point after setting the passing point or changing the passing point on another road, the screen shown in FIG. 18 is opened by pressing the correction key. To the position and press the set key to reset.

In the above embodiment, when there are a plurality of roads having the same road type and no road name, the passing point condition is set when the set key is pressed in a detailed view of the map as shown in FIG. Although the passing point condition setting screen is displayed,
As shown in FIG. 20, the passing point condition setting may be displayed so as to be superimposed on the detailed diagram, and the setting of the passing point condition may be performed first. Further, the present invention is not limited to the setting of a passing point, but can be applied to the setting of a guide point. FIG. 21 shows a case where the guide point is set on a toll road. The destination setting mark is displayed when the destination is set (by moving the cursor to select and set a point on the map), the method of displaying the mark at the selected point, and the guide point (the input point on the map) (A final guide point on the road set in correspondence with the above). Here, the destination setting mark is displayed by the former method.

Position the cursor mark on the toll road,
Pressing the set key opens a guide point condition setting screen. In this screen, it is determined whether the guide point is set on the toll road depending on whether the destination is in the toll road section or not. For example, if there are famous places, historic sites, observatories, etc., or accommodation facilities along the toll road, set the guide point on the toll road when using it as the destination, and when the destination is not on the toll road. Sets the guide point on a general road. When "No" is selected, the guide point is set on the general road closest to the center position of the cursor mark. FIG. 22 shows a case where the guide point is set on an expressway. By placing the cursor mark on the highway and pressing the set key, a guide point condition setting screen opens. This screen is used to specify whether or not to set a guide point on the expressway. When "set" is selected, the guide point is set on the expressway, and when "not set" is selected, the guide point is set on a general road.

The present invention is not limited to the above embodiment, but can be implemented by the following configuration. (1) Screen J of FIG. 7 used for setting passing point conditions, for example
Alternatively, on the screen of FIG. 20, the selected road may be confirmed by changing the color of the selected road or blinking the selected road to highlight it. (2) As shown in FIG. 23, temporary setting marks A and B may be displayed for all of the plurality of extracted roads to prompt the user to make a selection. This makes it easier to grasp the position information at the time of setting the passing point. (3) In the description of the above embodiment, for example, a road is selected for an input point, and a point closest to the input point on the selected road is set as a passing point. As a method of selecting the closest point, an arbitrary point on the road (pixel unit)
Or a method of selecting the nearest node using the node data in the guide road data shown in FIG. (4) The road data of the selected road is obtained under predetermined conditions, for example, road data within a predetermined distance from the input point is obtained, and a search is performed based on the obtained road sequence. You may make it. This search is performed, for example, so as to include all the acquired road rows. (5) Roads to be searched for the input point are those located in a circle centered on the input point, those in a rectangular area centered on the input point, or map data divided into rectangular areas. When the data is stored (the map data is divided into meshes for each scale), a search is made for an area in the area including the input point.

[Brief description of the drawings]

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

FIG. 2 is an explanatory diagram of a road data structure.

FIG. 3 is an explanatory diagram showing an example of a destination setting screen and a map display screen opened after the destination is set.

FIG. 4 is an explanatory diagram showing an example of a search condition setting screen following the map display screen of FIG. 3 and a passing point setting screen following the search condition setting screen.

FIG. 5 is an explanatory diagram showing an example of a screen when a pass point is input as an address.

FIG. 6 is an explanatory diagram showing an example of an address input screen following FIG. 5;

FIG. 7 is an explanatory diagram showing an example of a detailed map display screen following FIG. 6 and an example of a passing point condition setting screen following it.

FIG. 8 is an explanatory view showing an example of a detailed map display screen after a passing point is set, on the screen following FIG. 7;

FIG. 9 is a flowchart of a destination setting process.

FIG. 10 is a flowchart following FIG. 9;

FIG. 11 is a flowchart of a passing point setting process.

FIG. 12 is a flowchart following FIG. 11A.

FIG. 13 is a flowchart following FIG. 11B.

FIG. 14 is a flowchart of a selection screen display process.

FIG. 15 is a flowchart following C in FIG. 14;

FIG. 16 is an explanatory diagram of an example of a display mode = 1.

FIG. 17 is an explanatory diagram of an example of a display MODE = 2.

FIG. 18 is an explanatory diagram of a map display screen for setting a passing point, following FIG. 17;

FIG. 19 is an explanatory diagram of a map display screen for setting a passing point, following FIG. 18;

FIG. 20 is an explanatory diagram of an example in which pass point condition settings are displayed overlaid on a detailed diagram.

FIG. 21 is an explanatory diagram when a guide point is set on a toll road.

FIG. 22 is an explanatory diagram when a guide point is set on an expressway.

FIG. 23 is an explanatory diagram of a case where temporary setting marks A and B are displayed for all of a plurality of extracted roads.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Input-output device, 2 ... Present position detection device, 3 ... Information storage device, 4 ... Central processing unit, 5 ... Destination input selection key,
6: destination setting mark, 7: passing point setting mark, 51 ...
Search condition designating key, 52 ... passing point input selection key, 6
0: Map display screen for passing point setting, 61: Cursor, 62
... Set key, 64 ... Pass point setting key, 65 ... Position change key

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G01C 21/00 G08G 1/0969 G09B 29/10

Claims (4)

(57) [Claims] 1. A destination setting means for setting a destination, a desired place setting means for setting a desired passing place, and a route search for searching for a route to be guided based on the set destination and / or a desired passing place Means for searching for a road within a predetermined range with respect to the desired place set by the desired place setting means, and allowing the user to select one of the searched roads; Control means for setting as a desired road to pass through, and a navigation device for vehicles. 2. The vehicular navigation device according to claim 1, further comprising display means for displaying the name of the searched road. 3. The vehicular navigation device according to claim 1, further comprising display means for displaying the type of the searched road. 4. The navigation apparatus for a vehicle according to claim 1, further comprising display means for highlighting the selected road.