JPH09126801A - On-vehicle navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle navigation device provided with a desired passage place setting function with which roads are retrieved corresponding to the desired passage place condition inputted by a user, and then the retrieved roads are selected for setting as a desired passage place. SOLUTION: When a destination, for example, a registered destination is inputted for completing setting, a search condition specifying screen is displayed (S10), and a passing point designation is designated on the screen (S11), and when registration place of the passing point is inputted (S13), the map with the inputted registered destination as the center is displayed (S14), and a set key is pressed (S15), for setting the passing point (S16). And, when place changing of the registered destination under map displaying is performed, or when registered destination is not designated at the beginning, a cursor in map display is set at a spot and the set key is pressed, for setting the spot as the passing point (S17). Thereby, when there are a plurality of roads, for example, express- highways, urban express-highways and usual roads such as prefectural roads, etc., near a desired passage place, since selection means are provided for a user, guiding to the user's intended point is possible.

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 function of setting a passing point as a passing road such as a highway or a toll road, The present invention relates to a vehicular navigation device having a setting function for selecting a road that satisfies a passing point condition and guiding the user to a destination through the passing point set on the road or the selected road.

[0002]

2. Description of the Related Art A vehicle navigation device 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.
No. 6-337216. The conventional way of setting destinations is to guide to the destination by the route searched based on the input destination, the set passing point as the first destination and the destination as the second destination. One that guides you to the destination through the first destination, one that sets multiple planned passing points on the map, and that guides you to the next planned passing point when you pass within a certain distance from the planned passing points, etc. is there. Further, for example, Japanese Patent Laid-Open No. 4-220
No. 112 proposes to guide the optimum final guidance point to the set destination.

When 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 the registered destination is set as a destination or a registered destination. There is known a method of further scrolling a map centering on the point of and setting a desired point as a destination. The purpose of inputting the passing point is to set a passing road for going to the destination through the road selected by the user, in addition to setting the destination on the way of the route. At present, it is possible to set a uniform general road or a nearest general road as a passing point. However, when it is set as a uniform general road, it cannot be set as a passing road on a highway or an urban highway.
When setting the guide point of the passing point on the closest road uniformly, for example, setting the passing point at a store along the expressway or urban expressway will guide you on the expressway or the expressway. was there.

Further, in the process of setting the destination, the user stores registered place data (telephone number, facility name, or point data corresponding to the address, etc. in the storage device, and the user selects and sets from the menu. Data) for setting the destination without using the data), for example, when moving the cursor from the map displayed in advance to set the cursor position as the destination, or by using the registered data, When a map centered on a point corresponding to is displayed and then the cursor is moved 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. It is necessary to set a guidance point. JP-A-4-220112, JP-A-6-3
In the method proposed in No. 37216, a point on the road (guideable) closest to the set destination (passing point) is set as the (final route or planned passing point) guidance point.
When the destination (passage point) is set in this way, the road data is always referenced and the point on the road closest to the input destination is set as the guide point, so the road is crowded. There is a problem that a guide point may be set on a road which the user does not want in a region where the user is doing.

An object of the present invention is to provide a desired passage place setting function capable of searching a road corresponding to a desired passage place condition input by a user and selecting the searched road to set it as a desired passage place. It is to provide a navigation device for a vehicle that has it. Another object of the present invention is to provide a vehicle navigation device that can be selected when there are a plurality of roads of different road types as roads that satisfy the input desired place condition.

[0006]

In order to achieve the above object, the present invention according to claim 1 sets a destination in a vehicle navigation device that outputs guidance according to a route searched for the set destination. A desired destination setting means for setting a desired destination, a desired destination setting means for setting a desired destination, and a route search means for searching a route to be guided based on the set destination and / or desired desired location The means includes a desired passage place input means for inputting a desired passage place, and a road search means for searching a road within a predetermined range with respect to the desired passage place based on the desired passage place input by the desired passage place input means. A desired passage place condition setting means for setting a desired passage place condition for the road searched by the road search means and a passage set by the desired passage place condition setting means Select the retrieved road based on desired location condition, and a road-selection means for setting the pass desired location the road. Another invention is claim 1.
The invention is characterized in that the following configuration is provided. (1) The road search range performed by the road search means is set within a predetermined distance centered on the desired passage place. (2) When the desired passage place setting means does not have the desired passage place set on the road selected by the road selection means,
The system will be configured to forcibly relocate the desired place of passage to the closest position on the road. (3) The road selection means has a selection condition setting function in the case where there are a plurality of roads of different road types in advance, and selects a road for which a desired passage place is set based on the selection conditions set from the searched roads. It is in the enabled configuration. (4) The road selecting means is configured to be able to select a road for setting a desired passage place from all the roads searched by the road searching means. According to the above configuration, the route to be guided is searched based on the destination / desired passage place set by the destination setting means and the passage desired place setting means. Based on the desired passage place input by the desired passage place input means, a road within a predetermined range with respect to the desired passage place is searched. The road searched based on the set desired passing place condition is selected, and the road is set as the desired passing place. Accordingly, when there are a plurality of roads near the desired place to pass, such as highways, urban highways, and prefectural roads, the user is provided with a means for selecting, so that the user can be guided to a point intended by the user.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the system configuration of a navigation device. In FIG. 1, the navigation device is an input / output device 1 for inputting / outputting information about route guidance, a current position detection device 2 for detecting information about the current position of the vehicle, navigation data necessary for route calculation, and necessary for route guidance. An information storage device 3 in which various guide data and the like are recorded, and a central processing unit 4 that executes route search processing and display / voice guidance processing required for route guidance and controls the entire system.

The input / output device 1 can input information necessary for setting a destination such as a starting point, a destination, and a passing point, and can output voice guidance and / or screen display of guidance information when required by a driver. In addition, it is provided with a function of instructing the central processing unit 4 to perform navigation processing according to the user's intention and printing out processed data and data of data communication. As a means to realize that function, the input unit uses the address, telephone number, and
The touch switch 11 is used to input coordinates and request route guidance. In addition, the output unit displays the input data on the screen, or the display 1 that displays the driver's request or the route guidance automatically on the screen.
2. Data and information storage device 3 processed by the central processing unit 4
A printer 13 for printing out data stored in the computer and communication data and a speaker 1 for outputting 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 necessary 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 central processing unit 4. In addition to outputting all screens in color display, keys for setting route guidance, guiding during route guidance, and switching screens are displayed on this screen. Further, 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-mentioned operation based on a signal input by key touch. The current position detection device 2 is a satellite navigation system (G
GPS receiver 21 using a PS), a beacon receiver 22, for example, a mobile phone or G using an FM multiplex signal.
A data transmitting / receiving device 23 for receiving a PS correction signal, for example, an absolute azimuth sensor 24 including a geomagnetic sensor,
For example, a relative direction sensor 25 including a wheel sensor, a steering sensor, and the like, and a distance sensor 26 that detects a traveling distance from the number of rotations of the wheels are used to detect the traveling direction and position coordinates of the vehicle.

The information storage device 3 stores, for example, a map data file that stores map information, an intersection data file that stores information about intersections, and road information such as road types and start / end points of each road, which are necessary for route guidance. Road data file, node data file that stores the east longitude and north latitude coordinates at one point on the road, position coordinates and features of features such as facilities according to the purpose of use classified into genres such as gas stations and convenience stores It is composed of a guide point data file or the like that stores guide information and the like.

The central processing unit 4 is a CP for executing arithmetic processing.
U40, 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 41 storing the necessary data, destination and passage RAM or non-volatile as a storage means for temporarily storing information such as registered destinations used when setting a desired location, road information (road sequence data) after route search or re-search, route guidance information, and data being processed. A memory 42 including a memory and the like, a second ROM 43 in which display data necessary for route guidance and map display is stored, an image memory 44 in which image data used for screen display on the display is stored, a display control signal from the CPU An image processor 45 for extracting 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
A voice processor 46 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 47 for exchanging input / output data by communication, and a sensor signal for the current position detecting device 2. It comprises a sensor input interface 48 for entering and a clock 49 for entering the date and time in the internal diagnostic information. Here, the desired place to pass is set as a passing point in the case of sightseeing spots, scenic spots, facilities such as hotels and inns,
If the road you want to pass through is set as a passing road. The route guidance is configured so that the driver can select either screen display or voice output.

As a constituent feature of the present invention, the destination setting means is a CPU 40 for executing a program for destination setting processing stored in the first ROM 41, and a touch of the input / output device 1 for inputting a destination and outputting a map display or the like. Switch 11
Also, the display 12 and the image processor 45 that performs display processing such as map display, and an input / output processing unit including an interface 47 for inputting a destination input signal from the touch switch 11 to the central processing unit 4 are configured.
The desired passage place setting means is a CP that executes a program related to the desired passage place setting process stored in the first ROM 41.
U40 is composed of the above-mentioned input / output processing means for setting a desired passage place. In particular, the program relating to the desired passage place setting processing has a search processing function for a road within a predetermined range based on the inputted desired passage place, and a desired passage place condition to be performed for the searched road. Setting processing function, selection processing function of the road searched based on the set desired passage place condition, desired passage place transfer processing function for forcibly moving the desired passage place on the road based on the selected road, passage hope In connection with the location relocation processing, the passing point mark is displayed as the set point, the closest road when the set point is not on a guideable road, or the closest intersection or branch point. It has a display processing function for displaying the mark on the road. The route search means is a CPU that executes a program related to the route search stored in the first ROM 41.
40.

This system calculates an estimated position based on various sensor signals for current position detection and GPS data, and determines the position on the road by correlating the estimated position with the road on the map and GPS data. Find the current position. In addition, this system illuminates the current position on the route to the destination,
It has a function of determining whether or not a position on the lane of the host vehicle is approaching a predetermined guide point. That is, the function determines the predetermined distance before the intersection on the guide route, the automatic voice output after the intersection passage determination, and the timing of the intersection information display output 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. When the request signal is input, the voice processor is instructed to provide voice guidance of the current position. Further, the voice guidance of the present system synthesizes voice data (phrase, a sentence, a sound, etc.) read from the information storage device 3, converts it into an analog signal, and outputs it from the voice output unit.

Next, a data structure relating to destination setting having a desired passage place setting function will be described. The road data is a set of straight lines connecting nodes at both ends of the road, and is configured for each node by its coordinates, the number of roads leading to it, the angle of each road, and the like. For the guide roads to the destinations, number the roads that run first from the point of departure sequentially, and number all the roads that connect at junctions, junctions, and intersections. The guide road is determined under a predetermined condition based on these road numbers. Therefore,
The guide route is composed of a plurality of guide roads, and the guide road data is stored.

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

The guidance data includes intersection names, attention point data,
It is defined by road name, road name voice data address and size, 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 data is invalid,
Not required, straight ahead, rightward, diagonally rightward, leftward, diagonally leftward, and return to the left. When performing guidance at a junction, an intersection, etc., the destination data in the guide road data is searched, and the content of the guidance to be output (mainly the guidance expression added to the fixed guidance expression) is determined based on this destination data. . This destination data is especially added to data such as a branch point where it is difficult to determine the direction based only on the angle of the exit direction from the intersection, such as a high-speed exit, when the angle difference between a plurality of roads exiting the branch point is small. Is.

Various data forming the guide road data will be described. Road attribute data is data that expresses physical characteristics of the road, such as elevated roads, underpasses, and the number of lanes. Indicates presence / absence information of 3 lanes or more, 2 lanes, 1 lane, and no center line. In addition, when the applicable road is a branch road with an elevated road,
"Beside the elevated". The same goes for tunnels. The road name data is defined by the road type and the number within the type, and the road type is classified into (name) expressway, city expressway, toll road, general road such as national road and prefectural road. 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 attention point data is data for providing information for calling attention to changing road conditions, and defines, for example, level crossings, tunnel entrances, tunnel exits, width reduction points, no attention points, etc. To be done. The driving guidance data is information provided to safely and reliably perform driving for the next driving guidance while driving on a wide road or a road having two or more lanes. Information "from the right" and "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, by repeating the selection operation from the facility list, etc., the registered destination stored in the storage device in advance is derived, and the registered destination is set as the destination. There is a method of further scrolling a map centered on a point and setting a desired point as a destination. FIG. 3 shows an example of a screen configuration for selecting a destination setting. As the destination input method on the destination setting screen A,
A telephone number, an address, a facility name, and a registration point can be selected, and a function key 5 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, the facility list and the registered contents regarding the registered points are displayed, and the destination can be set by operating according to the message displayed on the screen. When the destination setting is completed, a map screen (confirmation screen) B for confirming the end is displayed, and the destination setting mark 6 is written on the map together with the destination setting completion message. This confirmation screen is displayed, and the search condition setting screen C of FIG. 4 opens after the elapse of a predetermined time.

When the destination is set, a route search which is usually the shortest in terms of time or distance is performed, but a route search considering the conditions desired by the user is also possible. FIG. 4 is an example of a search condition designation screen that opens when a function key such as an address is pressed on the destination setting screen (FIG. 3), that is, after the destination is set. In the following description, "passing point" will be used in the description of the desired passage place. As a search condition, it is possible to specify a passing point and a toll road. On the search condition specifying screen C, "specify" or "not" with respect to the passing point and "give priority" or "do not give priority" to the toll road. There is a key 51 for specifying, and when setting a search condition for a passing point or a toll road, "specify" or "priority" is selected. For example, when the passing point is set to "designate", the passing point setting screen D opens. On this screen D, a telephone number, an address, a facility name, and a registration point are provided as keys 52 for setting a passing point. These passing point setting menus are the same as those in the destination setting menu on the destination setting screen A shown in FIG. 3 except for "home" and "previous departure point" which are registration points.

On the passing point (desired place) setting screen D,
For example, when "Address" is selected, the address names classified according to the structure of the address system are input. That is, the address input screen is composed of a plurality of screens E to H so that the address names divided according to the structure of the address system can be sequentially specified from the beginning. All address input screens are pre-designated address display parts 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 Japanese syllabary, an address key 55 for selecting the address displayed on this address display unit, an address list of the address display unit. Scroll key 56 for scrolling in the order of Japanese syllabary, previous key 57 and next key 58 for skip display of the previous or next predetermined number of address data for the displayed address data, and for returning to the previous screen. A return key 59 is provided. The "address" selected on the passing point setting menu screen D is displayed in the previously designated address display portion on the initial screen E of the address input shown in FIG.

Scroll until the address name to be selected is displayed by operating the scroll key on the initial screen E,
By touching the marker portion of the display address, the address input screen F for entering the ward name and the municipality name following the address is opened. When an address is selected on the similarly displayed address input screen, the large character designation screen G and the small character designation screen H shown in FIG. 6 are sequentially opened, and the address is input on each screen. When a small letter is selected on the small letter designation screen H, a detailed diagram screen I displaying a peripheral map of the relevant small letter name shown in FIG. 7 opens. The peripheral map of the corresponding sub-character name stores the coordinates of the representative point of the sub-character corresponding to the sub-character spot, and displays it with the coordinates of the selected spot as the center. Although the large character "Sakae" which is not on the screen is selected on the large character designation screen G, this means that the displayed large character "Sakae" is selected by pressing the scroll key to scroll the screen display.

In FIG. 7, on the detailed view screen I, the cursor 61 is moved to the passing point on the map 60, a set key 62 for setting the center of the cursor as the passing point, and a return key 63 for returning to the small character designation screen H. In the map, eight cursor movement marks 61 arranged concentrically and at equal intervals around the circular cursor position mark 61a are included in the map.
A cursor mark consisting of b is displayed. By touching any of the cursor movement marks 61b, the cursor mark can be moved in the direction of the touched arrow. When setting a passing point on the map, when the cursor mark is located on only one road, the passing point is set on that road, but as shown in the figure, a plurality of cursor marks (cursor position mark 61a) are displayed. 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 transit point is an expressway, a general road, or which general road among the general roads. The passing point condition that determines which road to be selected as a passing point from a plurality of roads is specified by the passing point condition setting screen J opened by pressing the set key 62 after positioning the cursor mark near the passing point. To do.

The passing point condition setting screen J is provided with keys for displaying road information to be selected as passing points and setting passing points when there are a plurality of roads near the cursor mark on the map of the detailed view I. There is. In the illustrated example, road information is displayed on the selection key 64. For example, it is displayed that there are Nagoya Expressway and National Highway No. 1 near the cursor mark. Here, when "Nagoya Expressway" is selected, the 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 of FIG. 7 and the position of the passing point can be set again. Regarding the destination and passing point, the input point is displayed as the passing point or destination in the method of displaying and guiding based on the set point, and it is set to the point on the selected road in the process of actually guiding In some cases, the display of passing points and destinations may be transferred to the selected road. The present invention can be implemented by any of these display and guidance methods.

Next, a processing procedure relating to destination setting including passing points will be described. First, the destination setting process will be described with reference to the overall flow shown in FIGS. 9 and 10. In the process of setting the destination, the input of the registered destination is judged (S1),
The following processing is performed from the result. When the registered destination is input, the data of the registered destination and the map data including the registered destination are acquired (S2), and the 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) to set the registered destination as the destination (S5). When it is desired to change the position of the destination displayed on the map, the position change key is pressed to display the cursor (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 at that point is acquired, and a cursor is displayed on the map (S6).

To set the destination when the cursor is displayed on the map based on the judgment in steps S1 and S4, touch the arrow of the cursor to move the center position of the cursor to the destination or near the destination (S7), and enter key. Point input is performed with (S8). Then, the cursor center position is set as the destination (S9). When the destination setting is completed, a confirmation screen display process (not shown) is executed, and the destination set on the confirmation screen is confirmed. After that, a screen for designating search conditions is displayed (S10). The selection of the passing point is judged (S11), and when the passing point is not designated, the destination setting process is ended. When the pass point is set to "designate", it is determined whether or not the pass point is to be registered (S1).
2). When the passing point is designated by a method other than the registered place, the setting process is performed according to the input passing point (S17).
When the registration destination input is selected and the registration destination is input (S1
3) The registration destination data is acquired, and a map centering on the registration destination is displayed (S14). If the mark displayed on the map is the desired registered destination, the set key is pressed (S15) to set the registered destination as the passing point (S16). When it is desired to change the position of the registered destination displayed on the map, the position change key is pressed to move the cursor, the point input is confirmed by the ENTER key, and the setting process is performed with that point as the passing point (S17). ).

Next, the passing point setting process in step S17 will be described with reference to FIGS. Here, the range of the road searched for the desired place to pass is set within a predetermined distance with the input point as the 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 ENTER key is pressed (S103). On the other hand, when the cursor mark extends over a plurality of roads, between a plurality of roads, or when another road is selected, the cursor mark is moved (S102). That is, the cursor movement mark is touched to move the cursor mark near the passing point. When the ENTER key is pressed (S103), the coordinates of the center position of the cursor mark are acquired (S104), and the node data within a predetermined distance from the coordinates and the road data corresponding to the node data are acquired (S105, S10).
6). Here, the number of acquired roads is determined (S10).
7) When there are two or more roads, the processing from step S111 shown in FIG. 13 is performed. On the other hand, when the road is less than 2, the passing point is set by the processing of FIG.

In FIG. 12, it is first judged that the acquired road is "0" or "1" (S108). When the road is "0", the position on the road closest to the cursor center position is acquired and passed. It is set as a point (S109). When the road is "1", the closest position on the selected road is acquired from the cursor center position and set as the passing point (S110). In FIG. 13, when there are two or more acquired roads, passage points are set according to the road names and road types of all roads. First, i = 1 is set (S11
1) Perform a road name search for the acquired road (S11
2) It is determined whether or not there is a road name (S113). A road name is acquired for a road having a road name (S11
4) For roads without road names, road types are acquired (S115). Regarding the acquired road, step S11
2 to S115 are processed (i = i + 1). When the search is completed for all the acquired roads (S116), the display MODE process for the searched roads is executed.

With respect to the combination of the road name and the road type for the road acquired 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 acquired (S117). That is, if the acquired roads are, for example, the Nagoya Expressway, prefectural road (no name), and prefectural road (no name), the road type of each road is further determined (S118). Or Nagoya Expressway, prefectural road 3
If the road is a prefectural road or a prefectural road (no name), the display MODE = 1 is set. In the determination result in step S118, if all the acquired roads have no name and are not the same road type, the display MODE = 2, and otherwise the display MODE = 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 judged (S1
19), menu display processing is performed for each display MODE. In the case of display MODE = 1, since the road name and road type, for example, national roads and prefectural roads, have been acquired, the corresponding road name and road type are displayed in a menu 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 same type is regarded as one, and the road name and the road type are displayed in a menu (S123). Select the displayed menu (S12
4) It is determined whether the selected menu is a plurality of menus of the same type (S125). When a plurality of menus of the same type are not selected, the closest position on the selected road is acquired from the cursor center position and set as the passing point (S126). If you select a menu that has multiple items of the same type, a detailed map of the map is displayed. In FIG.
A detailed map of the map is displayed (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, between a plurality of roads, or when another road is selected, the cursor mark is moved (S129). When the cursor movement mark is touched to move the cursor mark near the passage point and the ENTER key is pressed (S130), the coordinates of the center position of the cursor mark are acquired (S131), and the cursor center position on the selected road is acquired. The closest position is acquired and set as a passing point (S132). Here, even if the cursor is not on the road, the position on the road closest to the cursor position at the time of entering the ENTER key may be set.

When the display MODE = 3, the processing is the same as the processing (FIG. 15) when a plurality of menus having the same type are selected in step S125, and therefore the description thereof is omitted. Display MO
An example of DE = 2 will be described. In this example, there are a plurality of roads of the same road type and having no road name among the 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 across the expressway and two prefectural roads, and 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 there are two prefectural roads, and since they are prefectural roads, the road types are the same, so one road name is displayed. Here, when the prefectural road is selected, a detailed map is displayed as shown in FIG. 19, and the cursor mark is selected from 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 notifying the completion of 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 correction key is pressed to open the screen of FIG. 18, and the position change key 65 is pressed to select the cursor. Move to the position of 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 the detailed map 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 on the detailed diagram so that the passing point condition is set first. Further, the present invention is applicable not only to the setting of passing points but also to the setting of guide points. FIG. 21 shows a case where the guidance point is set on the toll road. To display the destination setting mark, when setting the destination (when moving the cursor to select and set a point on the map), how to display the mark at the selected point and guidance point (input point on the map) There is a method of displaying a mark at the final guidance point on the road set corresponding to. Here, the destination setting mark is displayed by the former method.

Position the cursor mark on the toll road,
By pressing the set key, the guide point condition setting screen opens. On this screen, it is determined whether or not the guide point is set on the toll road depending on whether the destination is on the toll road section or not. For example, if there is a landmark, historic site, observatory, etc., or accommodation facility in the middle of the toll road, set the guidance point on the toll road as the destination, and if the destination is not on the toll road. Sets the guidance point on the general road. When "No" is selected, the guidance point is set to the nearest general road from the center position of the cursor mark. FIG. 22 shows a case where the guide point is set on the highway. By positioning the cursor mark on the expressway and pressing the set key, the guide point condition setting screen opens. On this screen, you can specify whether to set a guide point on the expressway or not. If "Set" is selected, the guide point is set on the highway, and if "Not set" is selected, the guide point is set on the general road.

The present invention is not limited to the above embodiment and can be implemented by the following configurations. (1) Used for passing point condition setting, for example, screen J in FIG.
Alternatively, the selected road may be confirmed by changing the color of the selected road or displaying it in a blinking manner on the screen of FIG. (2) As shown in FIG. 23, provisional setting marks A and B may be displayed for all the extracted roads to prompt the user to make a selection. This makes it easier to grasp the position information when setting the passing point. (3) In the description of the above embodiment, for example, a road is selected for the input point, and the point closest to the input point on the selected road is set as the passing point. As a method of selecting this closest point, any point on the road (pixel unit)
2 or a method of selecting the closest node by using the node data in the guide road data shown in FIG. (4) The road data of the selected road is acquired under a predetermined condition set in advance, for example, the road data within a predetermined distance from the input point is acquired, and the search is performed based on the acquired road string. You may allow it. This search is performed, for example, by including all the acquired road strings. (5) The road searched for the input point is not only in the circle centered at the input point, but also in the rectangular area centered at the input point, or the map data is divided into rectangular areas. When stored (map data is divided into meshes for each scale), a search is made for those within 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 of 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 that opens after setting the destination.

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 it.

FIG. 5 is an explanatory diagram showing an example of a screen when inputting an address of a passing point.

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

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

FIG. 8 is an explanatory diagram showing an example of a detailed map display screen after setting a passing point on the screen following FIG. 7.

FIG. 9 is a flowchart of destination setting processing.

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 FIG. 14C.

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 view of a map display screen for setting a passing point, which is subsequent to FIG. 17;

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

FIG. 20 is an explanatory diagram of an example in which passing point condition settings are displayed in a superimposed manner on a detailed diagram.

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

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

FIG. 23 is an explanatory diagram for displaying temporary setting marks A and B for all of the extracted roads.

[Explanation of symbols]

1 ... Input / output device, 2 ... Current 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 designation key, 52 ... Selection key for passing point input, 6
0 ... pass point setting map display screen, 61 ... cursor, 62
… Set key, 64… Pass point condition setting key, 65… Position change key

Claims (5)

[Claims] 1. A navigation device for a vehicle that outputs guidance based on a route searched for a set destination, a destination setting means for setting a destination, and a desired passing location setting means for setting a desired passing location. And a route searching means for searching for a route to be guided based on the set destination and / or desired passing location, the desired passing location setting means is a desired passing location input means for inputting a desired passing location, and the desired passing location Road search means for searching a road within a predetermined range for the desired passage place based on the desired passage place input by the desired place input means, and desired passage place condition for the road searched by the road search means The desired passage place condition setting means for setting and the road searched based on the desired passage place condition set by the desired passage place condition setting means are selected. Vehicle navigation device characterized by comprising a road-selection means for setting the the road as the passing desired location. 2. The vehicle navigation device according to claim 1, wherein a road search range performed by the road search means is within a predetermined distance centered on a desired passage place. 3. A desired passage place setting means for forcibly relocating the desired passage place to a position closest to the road when the desired passage place is not set on the road selected by the road selection means. 1. The method according to claim 1, wherein
The vehicle navigation device described. 4. The road selecting means has a selection condition setting function when there are a plurality of roads of different road types in advance, and the road for which a desired passage place is set based on the selection condition set from the searched roads. The vehicle navigation device according to claim 1, wherein the navigation device is selectable. 5. The vehicle navigation device according to claim 1, wherein the road selecting means enables selection of a road for which a desired passage place is set from all the roads searched by the road searching means.