JP3384293B2 - Route guidance device for vehicles - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a search means for obtaining a traveling route from a starting point to a destination by performing a search process based on map information, and a current position to a destination based on the obtained traveling route. The present invention relates to a vehicle route guide device including guide means for performing route guidance.

[0002]

In a car navigation system which is one of the devices of this type, for example, when a destination is input and set by a user's operation, a traveling route from a departure place to a destination is set. It is calculated and determined, and it is displayed so that the relationship with the current position can be recognized by a method such as highlighting the traveling route on the map displayed on the display device, or the vehicle is traveling relative to the current position of the vehicle. The user is informed of the progress by giving a voice instruction as to the direction in which to proceed.

In such a car navigation system, for example, when a destination is input to search for a traveling route from a departure point, the user may pass the route even if he / she does not want to go. There is a case to decide the course of travel. In such a case,
Conventionally, there has been a method in which a travel route is searched so as to bypass the place by previously inputting a place (point) or a road that should not be passed.

However, when designating a place that should not be passed as described above, conventionally, a road to be avoided is set by designating an intersection or a certain point on the road. When a center position is specified when a road exists, or when an intersection is specified as a place to avoid, there is a case where the road desired to be avoided cannot be accurately selected and set.

Further, when designating a road to be avoided, only one road can be designated at a time. Therefore, when it is desired to avoid a plurality of roads or to avoid as a region. , It was necessary to repeat the operation input of selection designation for each of the target roads. In addition, it is general that a certain limit is set on the number that can be selected and specified to avoid such a problem, and it is not possible to specify the avoidance selection over a substantially wide range. .

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a setting method for individually designating points and roads in order to set an area that a user wants to avoid when searching for a traveling route. An object of the present invention is to provide a route guidance device for a vehicle that can be easily set without the need.

[0007]

According to the first aspect of the present invention, the search means sets the desired specific area by the area setting input means and sets it as the avoidance area.
When the route is searched, the avoidance area is avoided so that the traveling route is calculated so that the user can perform a simple setting operation so that the route existing in the area to be avoided is not selected. You will be able to set the route.

According to the invention of claim 8, search means
In the search process of, add to the links that make up the map.
Use the given evaluation value and the sum of the evaluation values becomes the highest
To determine the path of travel by performing calculations in this way
In this configuration, the specific area is the avoidance area.
If it is set, the link related to the specific area
Setting the evaluation value low before performing the search process
So, the total evaluation value when passing through a specific area is
It is lower than when searching for a route avoiding that specific area.
And, as a result, avoid progress in specific areas.
You will be able to determine the route. And claims
According to 1,8, it is possible to set a plurality of ranges as the specific area, and further, since it is also possible to set a plurality of ranges the set as overlapping regions, flexible in accordance with the request of the user The range can be set. According to the inventions of claims 2 and 9, the user can
By the constant input means, the specified area can be
You can set a range that has a wide range or an arbitrary shape.
You can

According to the third aspect of the present invention, in the search process of the search means, the evaluation values given to the links forming the map are used so that the total of the evaluation values becomes the maximum. When the specific area is set as the avoidance area, the evaluation value of the link related to the specific area is set low before the search processing is performed. Therefore, the total of evaluation values when passing through a specific area should be lower than that when searching for a route by avoiding the specific area, and as a result, determining a traveling route that avoids the specific area. Will be able to.

The above-mentioned idea of the evaluation value is given, for example, as a so-called cost value as an index corresponding to the evaluation value of each link, and the cost value is given such that the lower the value, the higher the evaluation value. It can be grasped as a relationship in which the evaluation value is higher as the search route has a lower total cost value as a whole in the course of the search processing, and thus avoidance of the avoidance area as described above can be obtained by calculation based on the evaluation value. You can

According to the fourth and tenth aspects of the present invention, in the above-described case, the search means sets at least a low evaluation value of a link entering the specific area, and then the search processing is performed, whereby the specific area It is possible to reduce the total evaluation value when searching for a traveling route passing through.

According to the invention of claims 5, 11, 14 and 17 , when the destination or the departure place exists in the specific region, the searching means at least detects the avoidance region including the destination or the departure place. Performs the search processing by invalidating the setting of the specific area as the avoidance area, so that the correct traveling route can be searched for without the inconvenience that occurs in the search of the traveling route due to avoiding the inside of the specific area. .

According to the sixth, twelfth, fifteenth and eighteenth aspects of the present invention, when there is a case where it is desired to allow the user to pass conditionally even in the area set as the specific area,
By means of the area setting input means, it is possible to search for a traveling route that conditionally passes through the specified area by selectively setting links to be avoided in the specified area.

According to the invention of claims 7, 13, 16 and 19 , when the search means searches the traveling route so as to avoid the specific area set as the avoidance area in the course of the search processing, When avoiding a link in a specific area and the link to be searched does not exist outside the specific area, it will be set to pass through the avoidance area. You will be able to.

[0015]

DETAILED DESCRIPTION OF THE INVENTION

(First Embodiment) A first embodiment in which the present invention is applied to a car navigation system will be described below with reference to FIGS. 1 to 8. FIG. 2 shows the overall configuration of the device. The control circuit 1 includes a CPU, ROM, RAM
A route search program or a route guidance program, which will be described later, is stored in advance, and the functions as the search means and the guide means are realized by operating these software means. A GPS receiver 2, a direction sensor 3 and a vehicle speed sensor 4 for detecting the current position of the vehicle are connected to the control circuit 1.

The GPS receiver 2 receives radio waves transmitted from GPS satellites via an antenna (not shown), detects the current position of the vehicle, and outputs a position detection signal to the control circuit 1. The azimuth sensor 3 detects the traveling direction of the vehicle using, for example, geomagnetism and outputs a azimuth signal to the control circuit 1.
The vehicle speed sensor 4 detects the traveling distance of the vehicle based on the principle of detecting the number of rotations of the wheels and outputs the distance signal to the control circuit 1.

Further, the control circuit 1 is connected to a storage device 5, an operating section 6, a display device 7 and a sound generating device 8. The storage device 5 is a CD that stores map data and the like.
Equipped with recording media such as ROM, DVD, memory card,
Map data is output according to a read signal from the control circuit 1. The recording medium also stores voice data for performing voice guidance, which will be described later.

The operation unit 6 is used by the user to input settings such as a destination, a waypoint or an avoidance area (AvoidArea) described later, and has a function as area setting input means. For example, the destination and the passing point can be input by designating the position on the display screen 7a (see FIG. 3) of the display device 7 or by inputting the telephone number of the destination. It is possible. The avoidance area is set and input by inputting the destination and the passing point in this way, and the travel route is set and searched. For example, there are many places where congestion is likely to occur, or one-way roads or restricted roads. This is for setting in advance as an avoidance area when there is an area where the user does not want to pass as much as possible, such as a place.

The display device 7 is provided on the instrument panel portion of the vehicle and displays a road map, the current position, etc., and can be constructed using a liquid crystal display element or a CRT. The voice generating device 8 makes a driver in the vehicle compartment recognize the traveling guidance corresponding to the traveling route of the vehicle with a synthetic voice based on the signal output from the control circuit 1.

The control circuit 1 described above receives data input from the GPS receiver 2, azimuth sensor 3 and vehicle speed sensor 4 in correspondence with the destination, passing point and avoidance area input and set by the operating section 6. The current position is recognized based on the current position, and the traveling route to the destination is searched and determined from the current position information. Then, the traveling route is shown by showing it on the map displayed on the display device 7 as the vehicle travels, and the voice guidance is given by the voice generation device 8 if necessary.

Next, the principle of the search processing of the traveling route in the car navigation system of this embodiment will be briefly described. First, in the present embodiment, for each road shown on the map, divide them into a plurality of parts using intersections and the like as nodes, define the part between each node as a link, and connect the plurality of links. This makes up the map. Then, the map data is stored as link data to which data given corresponding to each link is added.

In this case, the link data includes, for example, a unique number (link ID) for specifying the link, a link length indicating the length of the link, coordinate data indicating the start and end positions of the link, and a predetermined direction (for example, north). Direction indicating the angle of the link, road width of the link, road type (high standard roads such as expressways and toll roads, upper and lower separated roads, service areas, parking areas, etc.). It is composed of data.

Further, the map data is arranged in a hierarchy so that it can be displayed in a plurality of stages in accordance with the degree of scale reduction. When the map data is set to a lower level map with a smaller degree scale, it becomes a target. A small area including points will be displayed in detail, and if set to a higher level map with a large scale, a wide range including the target points will be displayed roughly. .

In this case, the data of each link is also stored in a hierarchical manner. In other words, even if the link data in the upper map is simplified as, for example, the information of one link, the lower map is configured as detailed information by further dividing the link into a plurality of links. There are also cases.

Next, the contents of the search for the traveling route will be described, including the method of inputting the destination and the waypoint and setting the avoidance area. That is, the control circuit 1 is configured to include a function as a searching unit and a function as a guiding unit which are provided inside by software means, and the searching unit determines a traveling route to a destination. It has the function of seeking by performing a predetermined search process,
The guide means has a function of sequentially guiding the traveling direction corresponding to the current position according to the obtained traveling route.

Of these, first, the basic function of the searching means will be described. This is based on map data, such as the current position or the starting point that has been input and set as the search start point, and the passing point that has been input and set as necessary, as the waypoint condition, based on map data. The optimal link is selected and determined using a calculation method such as the Dijkstra method.

This Dijkstra method converts various data such as link length, road type, and road width attached to each link stored as map data into a cost value (evaluation value) and searches for the link being searched. In this method, the one with the lowest total cost value (the one with the highest evaluation value) is sequentially searched toward the destination. Here, the cost value is set to a lower value as the condition for passing the link improves, and this corresponds to setting the evaluation value of the link to a higher value.

In the above-mentioned case, the setting input such as the starting point, the destination or the passing point can be directly designated through the operation unit 6 on the map displayed on the display device 7. Alternatively, it can be designated by inputting the telephone number of a telephone installed in a building or the like at that point, and the control circuit 1 stores the telephone number data of the designated point in the storage device 5. The position data being read can be read and obtained as position coordinate data.

Now, specifically, in the above-described cost calculation, a lower map including each of a search start point (departure point), a destination and a waypoint (passage point), and an upper map including these points are stored. Read from device 5. Then, using the read map data, the route to be searched in each lower map is set, and the route to be searched searched between the lower maps by the upper map is connected. After this, the traveling route from the search start point to the destination is obtained by the search processing. In the search processing, the search route with the highest evaluation score, that is, the search route with the lowest total cost value points is determined as the traveling route. And the determined route is the link ID
Specified as column data.

In the process of searching the above-mentioned traveling route, the node at the portion where the route makes a right turn or a left turn is recognized as a guidance intersection by determining the angle between the connecting links, and this is included in the traveling route information as data such as a flag. ing.

On the other hand, the basic function of the control circuit 1 as a guide means is as follows. That is, the information of the traveling route determined by the searching means is displayed on the display device 7 in an appropriate map, and the road corresponding to the traveling route is highlighted so that the information can be visually recognized easily. . As for the current position, as described above, the GPS receiver 2, the direction sensor 3, and the vehicle speed sensor 4
The current position is calculated on the basis of the detection signal from the above, the link on the traveling route is determined, and the link is displayed on the display device 7 as the current link ID.

In the guidance operation, when the current link ID indicating the current position approaches the above-described guidance intersection, the angle formed by the entry link and the exit link with respect to the guidance intersection is "right turn" or "left turn". When it corresponds to the angle set as the angle to guide,
It is decided to perform "right turn guidance" or "left turn guidance".

Then, according to the above-mentioned decision, for example, at what timing the guidance is performed, for example, "300 m ahead" every time the distance obtained by the current link ID with respect to the guidance intersection reaches a predetermined guidance distance. Turn to the right. "And so on. In this guidance guidance, voice data corresponding to the words of the guidance content is read from the storage device 5 and given to the voice generation device 8, whereby a voice is generated to instruct the driver.

Next, the method of setting the avoidance area A provided as the setting function in this embodiment and the search processing according to the setting contents will be described. FIG. 3 shows the display screen 7a of the display device 7, and FIG. 4 shows a flowchart for setting the avoidance area. In the display device 7, an operation unit 6 is additionally provided, for example, as a touch switch for performing setting input by touching the operation display area 9 displayed on the display screen 7a with a hand. .

The display area 9 displays the following switches, for example. Refer to the previous screen in order from the top right of the screen (Previous)
Switch 9a, Reset switch 9b, Enlarge switch 9c, Zoom OUT
A switch 9d, an input confirmation (Enter) switch 9e, a zoom-in switch 9f, a reduction switch 9g, and the like are provided.

Of these, the zoom-out switch 9d and the zoom-in switch 9f are used to perform operations such as enlarging or reducing the scale of the map display such as wide area display or narrow area display. Switching display between the map and the subordinate map. On the other hand, the enlargement switch 9c and the reduction switch 9g are switches that are operated to widen or narrow the setting range when setting the avoidance area A described below.

Further, in the display screen 7a, a state in which a region surrounded by a chain double-dashed line is set in the vicinity of the center position as the avoidance region A together with the roads 10a, 10b, 10c showing the map data and the like. Then, in the avoidance area A, the display color is made different from that of the other areas,
It is displayed so that it can be easily visually recognized. Here, for example, the road 10a indicates a motorway such as an expressway (including, for example, Freeway), the road 10b indicates a general national road, and the road 10c indicates other roads.

The avoidance area A is set by operating the switches 9c and 9g as described above when enlarging or reducing on the map, and when it is desired to shift the set position on the map, the surrounding area is set. By touching the double triangular mark 11 displayed in eight directions, the map is scrolled and the avoidance area A is relatively moved.
A portion indicated by a circle 12 in the avoidance area A indicates the center position thereof, and an internal arrow indicates the relative movement direction of the avoidance area A. Then, by this, the display screen 7
By setting the avoidance area A to a desired area on a and operating the input confirmation switch 9e, the control circuit 1 recognizes it as the avoidance area A and sets it in the internal storage unit.

FIG. 4 shows the control contents of the control circuit 1 for the above-mentioned setting procedure. That is,
In the setting input operation of the avoidance area A, first, the map is displayed (step S1), and if there is a scroll input of the map (step S2), the map is scrolled on the display screen 7a (step S3). When there is an enlargement / reduction input (step S4), the map is enlarged / reduced (step S5).

If the avoidance area is enlarged or reduced (step S6), the avoidance area is enlarged or reduced (step S7), and finally the avoidance area input confirmation operation is performed (step S8). ) End the setting operation and register and set the avoidance area. At this time, in the control circuit 1,
For example, the set avoidance area is stored as the coordinate values of two vertices that are diagonally opposed to each other. When the input confirming operation is not performed, the above-described operation is repeatedly executed until the input confirming operation is performed (step S8).

In this case, in the avoidance area registration setting, for example, points can be designated as a minimum, and a maximum settable range is provided, for example, 3.2 km (=
The size can be set within a range of about 2 miles), and the shape is not limited to a rectangular shape, and may be set to an arbitrary rectangular shape. Further, the avoidance area is not limited to one location, and may be set in an arbitrary range independently in a plurality of locations as shown in FIG.
1, A3, A4, etc.), or in the case of setting at a plurality of positions thereof, the regions can be set to partially overlap with each other (in the figure, an overlapping region exists between the avoidance regions A3 and A4). The degree of freedom in setting the avoidance area can be increased, and thus the usability can be further improved.

Next, a process for avoiding the avoidance area A registered and set in the route search process will be described. Figure 5
FIG. 6 is a flowchart showing the avoidance area of the search processing program focusing on the avoidance area. FIGS. 6 and 7 explain the principle of the avoidance processing.
In addition, FIG. 1 shows a traveling route obtained by the route search processing when the avoidance area is set as A1 in the map shown in the figure and when the avoidance area A2 is set as an area wider than the avoidance area A1, for example. Is shown.

First, the control circuit 1 sets and inputs a starting point (when there is no input, the current position is set as a search starting point), a destination, a passing point, etc. by the operation unit 6 (step T1). , A route to be searched is set based on the map information corresponding to each set location, a cost value is set to each link of the searched route under a predetermined condition, and the search is started (step T2). At this time, when the cost value is set for the link, if the link is a link that enters the avoidance area A or a link that exits the avoidance area A (steps T3 and T4) If there is no starting point or destination (including passing points) in the avoidance area A (step T5), the cost of the searched link is set higher than the normal set value.

This is, for example, as shown in FIGS. 6 and 7, with respect to the avoidance area A, when there is no destination or departure point in the area, the link becomes an ingress link or an exit link (in FIG. 6). (Indicated by a thick arrow), the cost value is set to a high value, and if the destination or the departure point exists in the avoidance area A, it is not possible to avoid it, and unnecessary costs are avoided. Set the normal link cost value to avoid changing the value.

Thus, by setting the cost value of the link high, the cost value becomes high and it becomes difficult to select it when determining the proceeding route to be judged by the sum of the cost values. In other words, by setting the cost value high, a low score is given as the evaluation value of the link, and when the link is selected, the evaluation value becomes low so that the link is not automatically selected. I try to avoid it.

By repeating such search processing, when the destination is reached, the search processing is terminated (step T7), and the total cost value is the smallest among the various routes obtained at that time. The route indicated by the link connection is decided as the traveling route.

Although not shown in the above-mentioned search processing program, in order to perform the search processing, even if the vehicle is only in the avoidance area A, it is necessary to preliminarily set a condition in advance if it is only required to drive on a highway or a motorway. By designating it as the avoidance area A, it is possible to deal with it by not setting the cost value high, and thereby avoiding the avoidance when searching the traveling route.
Further, by designating the avoidance area A with a limiting condition, it is possible to search the traveling route so as to avoid only the road of the specific condition designated in the avoidance area A.

Further, in the above-mentioned case, for example, when a route to be searched for avoiding the avoidance area A does not include a link to be searched, for example, outside the avoidance area A, there are only prohibited roads. When there is no remaining road, or when no road actually exists outside the avoidance area A, the link in the avoidance area A is selected and the search is performed, and the traveling route is also in the avoidance area A. It will be set to pass.

As described above, the cost is calculated by setting the cost value of the link to be searched high in the avoidance area A when the link is the ingress link and the exit link. Even in such a case, the link in the avoidance area A is selected when the avoidance area A has to be passed as a result based on the fact that the link is automatically avoided. It will be.

When the search process considering the avoidance area A is completed as described above, for example, the traveling route as shown in FIG. 1 can be obtained. That is, in this figure,
Let P1 be the search start point, Q1 be the destination, and R be the travel route that is set when the avoidance area is not set.
Consider the case of 0a to R0c.

When a narrow area (area including one intersection) indicated by A1 in the figure is set as the avoidance area, a route is searched so as to avoid this intersection, and R1a-
The traveling route shown by R1d is set. In addition, when a wide area indicated by A2 in the figure (a one-section area including four intersections) is set as the avoidance area, the traveling routes shown by R2a to R2g in the figure are set while avoiding the routes leading to these intersections. Become so.

According to the first embodiment, by setting the avoidance area A, it is possible to set the traveling route so as to avoid the avoidance area A when performing the route search. It becomes possible to set the traveling route so that the road can be easily and quickly avoided when it is desired to set it as an area, as compared with the case where the individual road or intersection is designated and the avoidance is performed.

In addition, the avoidance area can be set to a desired area with a rectangular shape or an arbitrary shape other than the rectangular shape, and further, it can be set at a plurality of locations, or can be set at a plurality of locations by providing overlapping areas. Therefore, it is easy to use and excellent in operability.

Further, when the search process for setting the traveling route is executed with respect to the setting of the avoidance area, the control circuit 1 sets the cost values of the entrance and exit links into the avoidance area to be high. Since it can be substantially avoided, the same method or device as the conventional one can be used in the cost calculation without providing a special mechanism or circuit.

(Second Embodiment) FIG. 9 shows a second embodiment of the present invention. The difference from the first embodiment is that in addition to an optional avoidance area A set by the user. By automatically setting an area including a road provided with a specific condition as the avoidance area A10 or A11, the avoidance areas A10 and A11 can be avoided by setting the cost value similarly. I have just done it.

That is, the road provided with such a specific condition is, for example, a one-way section area, a private road for designating a passerby, a carpool lane, or a road with a restricted passage such as a restricted passage time. It is intended for areas that are set, or areas that are set in the school zone, etc., and in such areas, it may be desirable to avoid passing blindly because it is a shortcut for the driver, and these are automatically It is made to avoid it, or it is made selectable by the driver.

When such link data about roads is registered as the map data, the automatic avoidance mode of the specific area is set in the operation unit when the search processing is performed as in the first embodiment. When the intrusion or exit link to the corresponding avoidance area A10 or A11 is selected as the search route by performing the operation setting from 6, the cost value is set to be larger than the normal setting to automatically calculate the cost. Can be avoided.

For example, in FIG. 9, when there is no avoidance area A10 or A11 when searching a traveling route from the search start point P2 to the destination Q2, R10a to R10d as indicated by broken line arrows in the figure. However, the avoidance regions A10 and A11 are avoided and the advance routes of R11a to R11f are set as indicated by solid arrows in the figure.

Also in the case of this embodiment, the starting point, the destination, or the passing point is the avoidance area A10,
When included in A11, the start point, the destination, or the passage included in the avoidance area without performing the process of increasing the cost value of the link for avoidance, as in the first embodiment. Cancels unnecessary weighting of cost values when links enter and leave points so that normal traffic can be performed.

In the above case, as in the conventional case,
Even if it is not designated as an avoidance area, if a specific condition is set for each road (for example, the road indicated by K in FIG. 9), the cost value of each of these links is set high individually. In this way, the traveling route can be set so as to avoid the conditional road.

The present invention is not limited to the above embodiment, but can be modified or expanded as follows. Although the cost values of the entrance link and the exit link to the avoidance area are set to be high, the cost may be calculated to be avoided by setting the cost value of the link existing in the avoidance area to be high. , Or both can be used together.

In the calculation of the cost value, not only the cost value of the link but also the cost value of the node connecting the links may be given. In that case, the cost of the node existing in the avoidance area may be given. By setting a high value, the avoidance area may be avoided and the traveling route may be set.

The avoidance area can be set up to 3.2 km (2 m).
ile) Although it has a rectangular shape of four sides, the present invention is not limited to this, and the maximum setting range can be set in an appropriate practical range as necessary, and is not limited to a rectangular shape. You may make it set to the area | region which makes arbitrary shape. Alternatively, instead of setting the shape, for example, a setting method can be used in which it is specified in units of administrative divisions or set in an area corresponding to the terrain.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention, and is a display mode diagram showing a traveling route according to setting of an avoidance area.

FIG. 2 is an overall schematic block diagram

FIG. 3 is a diagram showing a display screen when setting an avoidance area.

FIG. 4 is a schematic flowchart of an avoidance area setting program.

FIG. 5 is a flowchart showing an operation involved in setting an avoidance area of a search processing program.

FIG. 6 is an explanatory diagram showing setting of cost values when an avoidance area is set.

FIG. 7 is an explanatory diagram showing setting of cost values when a destination is included in the avoidance area.

FIG. 8 is a display mode diagram in the case where a plurality of avoidance areas are set.

FIG. 9 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

[Explanation of symbols]

1 is a control circuit (search means, guide means), 2 is a GPS receiver, 3 is a direction sensor, 4 is a vehicle speed sensor, 5 is a storage device,
6 is an operation unit, 7 is a display device, 7a is a display screen, 8 is a voice generating device, 9 is a display area, and 10a to 10c are roads.

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Claims (19)

(57) [Claims] 1. A search means for performing a search process based on map data to obtain a travel route from a departure place to the destination with respect to a destination which has been set and input, and a travel route obtained by this search device. In a vehicle route guidance device provided with a guide means for guiding a route from a current position to a destination based on the above, it is possible to set a plurality of desired specific regions within a search region that is a target of the search processing. When a plurality of ranges is set as the specific area, area setting input means capable of setting as overlapping areas is provided, and the desired specific area is set by the area setting input means to avoid this. By using the area, the search means is configured to perform the route calculation so as to avoid the avoidance area when performing the route search. Route guidance device. 2. The vehicle route guidance device according to claim 1, wherein the area setting input means is provided so that an arbitrary range can be set as the specific area. . 3. The vehicle route guidance device according to claim 1, wherein the search unit uses the evaluation values assigned to the links forming the map in the search processing and sums the evaluation values. Is configured to calculate a route so as to be the highest, and when the specific region is set as an avoidance region, the search process is performed after setting a low evaluation value of a link related to the specific region. A route guidance device for a vehicle, wherein the route guidance device is configured so as to avoid it by performing the above procedure and obtain a route. 4. The vehicle route guidance device according to claim 3, wherein, when the specific area is set as an avoidance area, the search means sets at least the specific area as a link related to the specific area. A vehicle route guidance device configured to set a low evaluation value for an incoming link. 5. The vehicle route guidance device according to claim 1, wherein the search unit is at least the destination when the destination or the departure point is in the specific area. Alternatively, with respect to the avoidance area including the departure place, the search processing is performed by invalidating setting of the specific area as the avoidance area. 6. The vehicle route guidance device according to claim 3, wherein the area setting input means is provided for the set specific area such that links to be avoided in the area can be selectively set. A route guidance device for a vehicle. 7. The vehicle route guidance device according to claim 3, 4, or 6, wherein the search means is adopted when the search process avoids the specific region to search for a route. A vehicle route guidance device, characterized in that it is set so as to pass through the avoidance area when there is no link. 8. A search means for obtaining a travel route from a departure place to the destination by performing a search process based on map data for a destination which is set and input, and a travel route obtained by the search means. In a vehicle route guidance device provided with a guide means for guiding a route from a current position to a destination based on the above, it is possible to set a plurality of desired specific regions within a search region that is a target of the search processing. When a plurality of ranges is set as the specific area, area setting input means that can be set as an overlapping area is provided, and the searching means assigns to a link that constitutes a map in the search processing. It is configured to calculate a route so that the sum of the evaluation values becomes the highest using the evaluated values, and when the specific area is set as an avoidance area, the specific area A route guidance device for a vehicle, which is configured to obtain a route by avoiding the specific region by performing a search process after setting a low evaluation value of a link related to the. 9. The vehicle route guidance device according to claim 8, wherein the area setting input means is provided so that an arbitrary range can be set as the specific area. . 10. The vehicle route guidance device according to claim 8 or 9, wherein, when the specific area is set as an avoidance area, the search means identifies at least the specific area as a link related to the specific area. A route guidance device for a vehicle, which is configured to set a low evaluation value for a link entering an area. 11. The vehicle route guidance device according to claim 8, wherein the search unit is at least the destination when the destination or the departure place is in the specific area. Alternatively, with respect to the avoidance area including the departure place, the search processing is performed by invalidating setting of the specific area as the avoidance area. 12. The vehicle route guidance device according to claim 8, wherein the area setting input unit selectively sets a link to be avoided in the set specific area. A route guidance device for a vehicle, wherein the route guidance device is capable of being provided. 13. The vehicle route guidance device according to claim 8, wherein the search unit uses a link to be adopted when a route is searched by avoiding the specific area by the search processing. A route guidance device for a vehicle, which is set so as to pass through the avoidance area when it does not exist. 14. Search means for performing a search process based on map data for a traveling route from a departure place to the destination with respect to a destination which has been set and input, and a traveling route obtained by this searching means. A route guidance device for a vehicle, which includes a guide means for guiding a route from a current position to a destination on the basis of a region setting in which a desired specific region can be set in a search region as a target of the search processing. By providing an input means and setting the desired specific area by the area setting input means and using it as an avoidance area, the searching means avoids the avoidance area when performing a route search. When the destination or the departure point is present in the specific area,
The avoidance area including at least the destination or the departure point is configured to perform the search processing by invalidating the setting of the specific area as the avoidance area. Vehicle route guidance device. 15. Search means for performing a search process based on map data for a traveling route from a departure place to the destination with respect to a destination which has been set and input, and a traveling route obtained by this searching means. A route guidance device for a vehicle, which includes a guide means for guiding a route from a current position to a destination on the basis of a region setting in which a desired specific region can be set in a search region as a target of the search processing. By providing an input means and setting the desired specific area by the area setting input means and using it as an avoidance area, the searching means avoids the avoidance area when performing a route search. And the area setting input means is provided so as to be able to selectively set a link to be avoided in the set specific area. Vehicle path guide apparatus characterized. 16. A search means for obtaining a traveling route from a departure place to the destination by performing a search process based on map data for a destination which is set and input, and a traveling route obtained by this searching means. A route guidance device for a vehicle, which includes a guide means for guiding a route from a current position to a destination on the basis of a region setting in which a desired specific region can be set in a search region as a target of the search processing. By providing an input means and setting the desired specific area by the area setting input means and using it as an avoidance area, the searching means avoids the avoidance area when performing a route search. When performing a search for a route while avoiding the specific area by the search processing, if there is no link to be adopted, the vehicle passes through the avoidance area. Vehicle path guide apparatus characterized by path is set to so that. 17. A search means for obtaining a traveling route from a departure place to the destination by performing a search process based on map data for a destination which has been set and input, and a traveling route obtained by this searching means. A route guidance device for a vehicle, which is provided with a guidance means for guiding a route from a current position to a destination based on An input means is provided, and the search means is configured to use the evaluation values assigned to the links that form the map in the search processing to calculate the route so that the total of the evaluation values becomes the highest. cage, when the specific region is set as avoidance area is lower the evaluation value of the link associated with the specific region setting
After performing the search process after
It is configured to avoid the
When the destination or departure point is within the specified area
Includes at least the destination or origin
For the avoidance area,
The search processing is performed by invalidating the setting as the area.
Cormorant that the vehicle path guide apparatus according to claim. 18. Search means for performing a search process based on map data for a travel route from a departure place to the destination for a destination that has been set and input, and a travel route obtained by this search device. A route guidance device for a vehicle, which is provided with a guidance means for guiding a route from a current position to a destination based on The input means is provided, and the search means is configured to calculate the route so that the total of the evaluation values becomes maximum by using the evaluation values given to the links forming the map in the search processing. If the specific area is set as an avoidance area, the specific area is avoided by performing a search process after setting a low evaluation value of a link related to the specific area. Was configured to determine the route, the region setting input means, with respect to the specific area set
Link in the area to be avoided can be set selectively.
A vehicle route guidance device characterized by being worn . 19. Search means for performing a search process based on map data for a travel route from a departure place to the destination with respect to the set and input destination, and a travel route obtained by this search means. A route guidance device for a vehicle, which includes a guide means for guiding a route from a current position to a destination on the basis of a region setting in which a desired specific region can be set in a search region as a target of the search processing. The input means is provided, and the search means is configured to calculate the route so that the total of the evaluation values becomes maximum by using the evaluation values given to the links forming the map in the search processing. If the specific area is set as an avoidance area, the specific area is avoided by performing a search process after setting a low evaluation value of a link related to the specific area. The search process,
When searching a route by avoiding the specific area by reason
When there is no link to be adopted,
A vehicle route guidance device , wherein a route is set so as to pass through the inside .