JPH09184735A - Navigation device for vehicle provided with re-searching function and its storage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To search a path to a destination again for guiding even when a vehicle has parked in a parking lot. SOLUTION: A navigation device for vehicle has an input/output device 1 for inputting and outputting information regarding path guide, a current location detection device 2 for detecting information regarding the current position of own vehicle, an information storage 3 where navigation data required for calculating a path and display guide data required for guidance are stored, and a central processing device 4 for performing display guidance processing required for path search processing and path guidance and controlling an entire system, thus searching a path to the destination for guidance. When the vehicle enters a parking lot halfway to a guided destination, the path from the parking lot to the destination is searched and is outputted according to a building shape map. The parking lot in this case is within a specific distance from the destination and guiding is completed when the parking lot is near the destination.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular navigation device having a re-search function for performing route guidance according to a preset route, and a storage medium therefor.

[0002]

2. Description of the Related Art A vehicle navigation device searches a route from a current position or a designated starting point to a destination based on a point input such as a destination, and provides route guidance based on the searched route. This provides the driver with information on the route to the destination when the vehicle travels on an unguided road. Therefore, in the vehicular navigation device, a search function for searching a route from the current position to the destination by inputting the destination, a current position detection function for detecting the current position and the direction of the own vehicle, It has a guidance function that matches the current position with the guide route and guides the route to the destination according to the guide route. In the guidance function, the guidance route obtained by searching is displayed, for example, on a map, an intersection map, or the like, and the current position and the traveling direction of the vehicle are displayed on the map or the intersection map to provide route guidance. In addition, it provides information such as remaining distance, name, right and left turn regarding intersections that should turn, teaches characteristic features so that the guide route can be confirmed while driving, and it is not only displayed but also voiced There are things such as guidance.

[0003]

However, even if a route to the destination is searched by the route search, there is no place to park at the destination, and it may not be possible to actually reach the destination by car. In such a case, find a parking lot in the middle of the route to the destination according to the searched guide route and park it, or once drive to the destination and search for a nearby parking lot and park. become. Moreover, if the area is not well known geographically, if the parking lot is very close to the destination (near the destination), you can reach the destination without any guidance, but the parking lot is If they are far from each other, the route from the parking lot to the destination may not be known while searching for the parking lot even though the user has reached the vicinity of the destination by route guidance. When the route from the parking lot to the destination cannot be found in this way, the guide route or the positional relationship between the destination and the parking lot must be checked, and the parking lot is used as the current position to reach the destination. The problem arises that the user must instruct the route search of.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to surely guide a route to a destination even when entering a parking lot.
Therefore, the present invention provides a vehicular navigation device that searches for a route to a destination and guides the vehicle, detects that the vehicle has entered a parking lot, determines the distance from the parking lot to the destination, and determines the distance from the parking lot. It is characterized by re-searching and outputting a route from a to a destination.

[0005] Further, a re-search is performed on condition that the parking lot is within a predetermined distance from the destination and not near the destination, and if the parking lot is not within a predetermined distance from the destination, a detour is performed. Is determined not to be re-searched, and if the parking lot is near the destination, the guidance is terminated, and the destination searched by the shape map of the building, facility or other building The shape map is displayed by changing the display mode depending on the characteristics of the building and displaying the name with priority, and the shape map is printed out.

[0006] As a storage medium of a vehicle navigation device having a re-search function, the above route information and a route to a destination are searched for and guided, and when the vehicle enters a parking lot, it is detected. A program for determining the distance from the parking lot to the destination, re-searching the route from the parking lot to the destination and outputting the route is stored.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the configuration of an embodiment of a vehicle navigation device according to the present invention. The input / output device 1 inputs and outputs information related to route guidance, and the current position detection device 2 detects information related to the current position of the vehicle. An information storage device 3 in which navigation data necessary for calculating a route, display guidance data necessary for guidance, and the like are stored.
It is composed of a central processing unit 4 which performs route search processing and display guidance processing necessary for route guidance and controls the entire system. First, each configuration will be described.

The input / output device 1 instructs the central processing unit 4 to perform navigation processing at the will of the driver so that the driver can input the destination or output the guidance information by voice and / or screen when the driver needs it. In addition, it has a function of printing out the processed data. As means for realizing the function, the input unit includes a touch switch 11 and an operation switch for inputting a destination as a telephone number or coordinates on a map, and for requesting route guidance. Of course, an input device such as a remote controller may be used. In the output unit, the input data is displayed on the screen, and the route guidance is automatically displayed on the screen in response to the driver's request. The display 12 stores the data processed by the central processing unit 4 and the information storage device 3. And a speaker 16 for outputting route guidance by voice.

Here, a voice recognition device for enabling voice input or a recording card reading device for reading data recorded in an IC card or a magnetic card can be added. In addition, an information center that stores data necessary for navigation and is provided via a communication line at the request of the driver, an electronic notebook that stores driver-specific data such as map data and destination data in advance, etc. A data communication device for exchanging data with another information source can also be added.

The display 12 is composed of a color CRT or a color liquid crystal display, and is necessary for navigation such as a route setting screen, a section map screen, 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, buttons for setting route guidance, performing guidance during route guidance, and switching screens are displayed on this screen. In particular, the passing intersection information such as the passing intersection name is displayed in color in a pop-up on the section map screen at any time.

The display 12 is provided in an instrument panel near the driver's seat. The driver can check the current position of the vehicle by looking at the section map and obtain information on the route from now on. it can. The display 12 is provided with a touch switch 11 corresponding to the display of the function button, and is configured to execute the above-described operation based on a signal input by touching the button. The input signal generating means including the button and the touch switch constitutes an input unit, but a detailed description thereof is omitted here.

The current position detecting device 2 obtains information using a current position satellite navigation system (GPS) of the vehicle.
An information center (for example, ATIS) by using a PS receiver 21, a VICS information receiver 22 for obtaining information using FM multiplex broadcasting, a radio beacon, an optical beacon, etc., a mobile phone, a personal computer, etc. And a data transmitting / receiving device 23 for bidirectionally communicating information with other vehicles,
For example, a relative azimuth sensor 25 that detects the traveling azimuth of the vehicle in the relative azimuth by using a steering sensor or a gyro sensor, and a distance sensor 26 that detects the mileage of the vehicle from the number of rotations of the wheels. For example, road information, traffic information that is information related to traveling is transmitted and received, information related to the current position of the vehicle is detected,
Further, it is a device for transmitting and receiving information relating to the current position.

The information storage device 3 is a storage medium for storing navigation programs and data, for example, a CD-ROM.
It is an external storage device including a ROM. The program consists of a map drawing unit, route search unit, route guidance unit, current position calculation unit,
It is composed of an application part and an OS part, etc., which consist of a destination setting operation control part, etc., which performs navigation signal output processing. Here, programs for processing such as route search, display output control necessary for route guidance, and voice are provided. A program for performing voice output control necessary for guidance and data necessary for the program, and further, display information data necessary for route guidance and map display are stored. The data includes map data necessary for route guidance (road map, house map, building shape map, etc.), intersection data, node data, road data, photograph data, registered point data, destination point data, guide road data, Detailed destination data, destination reading data,
It consists of a file of telephone number data, address data, and other data, and stores all data necessary for the navigation device.

The central processing unit 4 includes a CPU 40 for executing various arithmetic processing, a flash memory 41 for reading and storing programs from the CD-ROM of the information storage device 3,
ROM 42 storing a program (program reading means) for performing program check and update processing of flash memory 41, set point coordinates of destination, road name code No. RAM 43 for temporarily storing searched route guidance information such as searched data and data during arithmetic processing, image memory 44 for storing image data used for screen display on a display, and display output control signals from CPU 40. An image processor 45 which retrieves image data from the image memory 44, performs image processing on the image data, and outputs the processed image to a display
Information storage device 3 based on an audio output control signal from the PU
The speaker 1 which synthesizes the voice, the phrase, the sentence, the sound, etc. read from
6, a communication interface 47 for exchanging input / output data by communication, a sensor input interface 48 for receiving a sensor signal of the current position detecting device 2, and a date and time for writing date and time in internal diagnostic information. A clock 49 and the like are provided. In the central processing unit 4, the data acquired by each sensor of the current position detection device 2 is used as the sensor input interface 4
8, the CPU 40, based on the data,
The current position coordinates are calculated at regular time intervals and temporarily stored in the RAM 4.
Write to 2. The current position coordinates are obtained by performing a map matching process in consideration of detection errors of various data. The output values of the various sensors are constantly corrected. Here, the route guidance is configured so that the driver can select either the screen display or the voice output.

The program required for navigation may be stored in the ROM of the central processing unit 4 in advance, or may be stored in the information storage device (storage medium) 3. When the program is stored in the information storage device 3, for example, when the program is read from the information storage device 3 and stored in the flash memory, a new program is updated by replacing the information storage device 3, It becomes possible to execute. The program read from the information storage device 3 is temporarily stored in the RA
It can also be stored in M to handle the navigation function.

FIG. 2 is a diagram showing a configuration example of road guidance data and the like, FIG. 3 is a diagram showing a configuration example of road attribute data and the like, FIG. 4 is a diagram showing a configuration example of attention point data and the like, and FIG. It is a figure showing the example of composition of the data of a shape map. 2 to 5 show an example of the structure of a main data file stored in the information storage device. The guide road data file is, as shown in FIG. 2A, a road number for each of the road numbers n. , Length, road attribute data, address of shape data, address of size and address of guidance data, size, and are stored as data required for route guidance obtained by route search.

The road number is set for each direction (outbound and return) for each road between the branch points. The road attribute data is road guidance auxiliary information data, and as shown in FIG. 3A, information about an elevated road / underpass and whether the road is an elevated road, next to the elevated road, underpass, or next to the underpass and lanes. It is data showing information on the number. As shown in FIG. 2B, when the shape data is divided at a plurality of nodes (sections) on each road,
Each of the number m of nodes has coordinate data including east longitude and north latitude. As shown in FIG. 2C, the guidance data includes intersection (or branch) name, attention point data,
It consists of road name data, road name voice data address, size and destination data address, and size data.

The notice data of the guidance data is shown in FIG.
As shown in (A), it is data indicating information such as railroad crossings, tunnel entrances, tunnel exits, width phenomenon points, and nothing, and calls attention to the driver at railroad crossings other than branch points, tunnels, etc. Is data for. Road name data is
As shown in FIG. 3 (B), information on road types of highways, urban highways, toll roads, general roads (national roads, prefectural roads, etc.) and highways, urban highways, toll roads Is information data, and is composed of road type data and an in-type number which is individual number data for each road type. As shown in FIG. 2D, the destination data includes a destination road number, a destination name, an address of destination name audio data, a size and destination direction data, and travel guidance data.

As shown in FIG. 2E, among the destination data, the destination direction data is invalid (does not use the destination direction data), is unnecessary (does not guide), goes straight,
This is data indicating information on a diagonally right direction, a right returning direction, a left direction, a diagonally left direction, and a left returning direction. As shown in FIG. 4B, the driving guidance data stores data for guiding which lane to drive when there are a plurality of lanes, such as rightward, leftward, or central. This is data indicating information about the item.

The data of the building shape map is, for example, as shown in FIG.
As shown in (A), the data number N of each building is stored next to the data number N of buildings, bridges, towers, parks, playgrounds, roads, and the like. And the data of each building is
It consists of the building name, address (address), type, building shape, height, and detailed information. The name is the name of the building if it is a building, the name of the resident if it is a private house, the name of the facility if it is a facility, "Chuo-dori" if it is a road, or "National highway 1".
No. ”is the road type or street name, and the street address.
Is the address of the building. The shape of a building has a coordinate number n representing the shape and its coordinate values (x ₀ , y ₀ ), (x ₁ , y
₁ ), ..., (x _n-1 , y _n-1 ) and the type is information such as general houses, condominiums, office buildings, public facilities, roads, and parks. The height is information on the number of floors and the height (m). For example, in the case of a tenant building, the details are information on each resident. For the number m of names and each tenant, the name, telephone number, room number, classification (type of business such as restaurant, convenience store,..., Business content). Information. Therefore, as shown in FIG. 5B, for example, the coordinate values are sequentially read as the information about the shape of the building, and the drawing is performed by connecting and drawing the lines to output the planar shape of the building or house or the topography of the park. it can.

Next, the operation will be described. 6 is a diagram for explaining a flow of the entire system of the vehicle navigation device according to the present invention, FIG. 7 is a diagram for explaining a re-search process from near the destination, and FIG. 8 is a display process of a building shape FIG. 9 is a diagram for explaining a process of displaying a building name.

When the program of the route guidance system is started by the CPU 51 of the central processing unit 4, the current position is first detected by the current position detecting device 2 as shown in FIG. At the same time, the name of the current position and the like are displayed (step S1). Next, a destination is set using a telephone number, an address, a facility name, a registered point, and the like (step S2), and a route search from the current position to the destination is performed (step S3). When the route is determined, the route guidance / display is repeated until the vehicle arrives at the destination while tracking the current position by the current position detecting device 2 (step S4). If a detour setting is input before arriving at the destination, a search area is set, a re-search is performed in the search area, and route guidance is repeated until the vehicle arrives at the destination.

On the other hand, in the guidance processing until the vehicle arrives at the destination, the current position is detected as shown in FIG.
11) It is checked whether (destination-current position) is within a predetermined distance, that is, whether or not the current position is within a predetermined distance from the destination, for example, 1 km (step S12). If the vehicle has stopped, it is determined whether or not the vehicle has stopped (step S13). If the vehicle has stopped, it is determined whether or not the vehicle has entered the parking lot (step S14). If the vehicle does not come within the predetermined distance from the destination, it can be judged as a detour even if it enters the parking lot, and if the vehicle does not stop even if the vehicle comes within the predetermined distance from the destination, it remains as it is. The current position is detected and tracked, and if the vehicle does not enter the parking lot even when the vehicle stops, the guidance is continued until the vehicle arrives at the destination (step S15). Then, when entering the parking lot, it is checked whether or not the parking lot is near the destination, for example, within 300 m from the destination (step S1).
6) If it is in the vicinity of the destination, the guidance to the destination is not necessary and the process ends, and if it is not in the vicinity of the destination, the route to the destination is searched again starting from the parking lot (step S17), From the search result, a guide map is displayed or printed by a building shape map (step S18).

As described above, it is detected that the vehicle has entered the parking lot, and the route from the parking lot to the destination is re-searched and output. Guidance to the destination becomes possible. Moreover, when the vehicle is stopped, it detects that the vehicle has entered the parking lot from its current position, and depending on whether the parking lot is within a predetermined distance from the destination or in the vicinity of the destination, the parking lot entered for the detour. Whether or not a re-search is necessary is judged by judging whether the parking lot has entered to reach the destination on foot. These ranges are, for example, 1 km as a detour and a distance that can be judged as a detour as described above, and a range very close to the destination where the vicinity of the destination can be easily reached to the destination without guidance, for example, 30
Although it is set to 0 m, it goes without saying that this distance can be arbitrarily changed.

In the case of a route guided by a vehicle to travel to a destination, it is effective to display the current position while tracking it on a road map, an intersection map, or the like. The route of the re-search performed on condition that the vehicle is done is a guide route for the vehicle to head to the destination on foot in the parking lot. Therefore, this is different from normal guidance that is performed while displaying the current position while tracking the current position. Therefore, rather than a conventional map such as a road map or an intersection map, a building shape map in which the features of the building along the route to the destination can be easily understood is effective. As described above, the building shape map is drawn and displayed by sequentially reading out the coordinate series stored as shape data in the building shape map data and connecting them with lines, and the name is displayed on it. FIG. 8 shows the display process of the building shape, and FIG. 9 shows the display process of the building name.

As shown in FIG. 8A, the process for displaying the building shape is to retrieve and read the building shape map data in the display range from the information storage device 3 (step S21), and to display the building shape to be displayed. (Step S2)
2). This display mode is the color of the shape to be displayed, its density, their pattern, etc. as described above, and is determined based on the type, height, and scale of the configuration. For example, by type, public facilities, stations, theaters, museums, amusement parks, towers, condominiums, buildings other than ordinary houses, etc. can be distinguished. In public facilities, public institutions such as government offices, police stations, public halls and parks And public facilities such as sports grounds, and even buildings other than ordinary houses can be distinguished by height (number of floors), number of tenants, and the like. After the display mode is determined in this way, a building shape map is displayed (step S23), and the inside of the shape is displayed in the determined display mode (step S2).
4).

The display mode in step S22 is obtained by registering a display mode determination table as shown in FIG. 8B, for example, by referring to the data of the building shape map to be displayed and this display mode determination table. , Can be determined. The one shown in FIG. 8 (B) is a color when the building to be displayed is a public facility, and d when it is a guideway.
If there is detailed information about the color, not public facilities or roads, it is divided into shades of b color according to its scale. Otherwise, if the height is above a certain level, a mesh pattern of c color etc. In this example, the display mode of colors, their densities, their patterns, etc. is set in accordance with the type, height, and scale of the configuration. Therefore, when this display mode determination table is used, the following processing is performed in step S22.

First, as shown in FIG. 8C, the data of each building shape map is referred to as a display mode determination table (step S31), and it is first checked whether the type is a public facility or a road or other (step S32). If it is a public facility, the display mode is determined to be a color (step S33). If it is a road and the road is a road (guide road) on the searched guide route, the display mode is set to d. The color is determined (step S34). In the normal case, the re-searched route is composed of the road number, and therefore the road in the data of the building shape map is searched from the road number to determine the display mode of the road.
The road is represented by the building shape map data shown in FIG.
For example, it can be recognized as a road from the type, and the road number can be recognized by the address. Then, it is drawn by the coordinate sequence of the shape. For roads, there is no height or detailed information. In other cases, which are neither public facilities nor roads, it is checked whether or not there is detailed information (step S35), and if there is, it is determined whether or not the number of names in the detailed information is α or more (step S36). ), The display mode of those having α or more is determined to be b color (step S38), and the display mode of those not having α is determined to be light b color (step S37). Even if there is no detailed information, the height of the building is further checked (step S39), and if the height is a certain height or more, the display mode is c
A color net pattern is determined (step S40). In this example, priority is given to whether or not the facility is a public facility, then detailed information, that is, the scale of the structure of the building is prioritized, and finally, the display mode is determined by the height.

The names displayed on the building vary in length, and not all names can be displayed depending on the size of the screen and the display range. Therefore, similar to the case of determining the above-described display mode, for example, a priority order according to the type and a priority order according to the amount of detailed information are provided and displayed within a range that does not overlap. FIG. 9 shows an example of the processing. First, the names are stored in the range of data to be displayed in descending order of the number m of names in the detailed information (step S5).
1). Then, the display range of names on the map is calculated (step S53) for all names in descending order of the number m of names (step S53), and those that do not overlap the display range of the names already displayed (step S54). , The name is displayed on the map (step S55). Then, the display range is stored (step S56), and the process returns to step S52 to repeat the same processing.

Here, the display range of the name is determined by sorting the character from the center of the building to both sides according to the number of characters from the vertical and horizontal size of the character, the character interval, and the coordinates of the upper left and lower right positions of the character string. It is memorized. If the display range is not overlapped, judging only from the vertical and horizontal size of the character and the character spacing, adjacent names are displayed at a short interval on the whole surface, making it difficult to see the map. If the distances are longer than the above, processing may be performed to determine that the display ranges do not overlap. As a method in this case, for example, the character size α
This can be achieved by setting the display range to double and β times to the left and right, or setting a predetermined number of characters vertically and horizontally as the allowable interval.

As described above, with the data of the building shape map of the present invention, the center coordinates and the coordinates of the display range when displaying the name can be determined by calculation from the coordinate sequence of the shapes. Therefore, even when the map data storage device is configured to store not only the building shape map but also the data of maps other than the building shape map and switch and display the map and the building shape map on the display screen, It is possible to display another map such as a map or a house map, and display the name of the building shape map data in the display range calculated from the coordinate sequence. In this case, the process of displaying the map and the process of displaying the name can be executed without being aware of each other at all, and the gap between the display of the map and the display of the name can be eliminated by matching the display coordinates of each. By combining such processing, it is possible to share the shape coordinate sequence and name in the building shape map data with other maps such as road maps and residential maps as name display data, which significantly increases the amount of data. Can be reduced to

FIG. 10 is a diagram showing a display example of a route guide map from a parking lot to a destination based on a building shape map. The route guide map from the parking lot to the destination, which is searched by the re-search process in the vicinity of the destination and is displayed using the building shape map, is as shown in FIG. 10, for example. The route guide map using this building shape map highlights the shape of the current parking lot at the center of the map along with a cursor KL in the shape of a circle and displays the shapes of the surrounding buildings. There is.
In addition, according to the data of the building shape map shown in FIG. 5, in the case of a parking tower or a parking lot itself, by type, and in the case of a building with a parking lot on the underground or rooftop, Since the parking lot is stored in the classification in the detailed information, the parking lot can be searched according to any one of them. The destination is also highlighted together with the route from the parking lot to the destination. Furthermore, for each building, if it is judged as a building with high usefulness of information based on the type information of data, height information, number of names of details, etc., change the display mode from general building The names of major buildings such as public facilities, large buildings, parks and streets are displayed in a predetermined priority order so as not to overlap. Some of the structures are represented by some patterns,
The display mode is changed, and in the case of color display, the colors and densities, as well as the combination of those patterns, are used for distinctive display. For example, in public facilities such as schools, city halls, and stations, parks, and tenant buildings, buildings with large names are displayed differently from normal display modes, so that landmarks and features in the area displayed as a map can be determined. It can be easier.

When the route to the destination is output using the building shape map as described above, there is no place to park at the destination, and the vehicle must be parked by searching for a surrounding parking lot.
When walking to the destination from there, it is possible to provide easy-to-understand route guidance, which is different from the guide provided by a road map when traveling by vehicle. In other words, because it is a route to the destination by foot, "Ueno Building" at the corner of the road that makes a right turn
You can check the building names, public facilities, and shapes of buildings, such as "Green Park" at the end, as needed.

It should be noted that the present invention is not limited to the above embodiment, and various modifications are possible. For example, in the above embodiment, it is detected that the vehicle has entered the parking lot, and the search is performed again. However, as a parking lot, a so-called toll parking lot, not only a general parking lot such as a free parking lot, but also Needless to say, other structures such as facilities that secure parking places, buildings, parks, roads on which parking meters are installed, and the like may be included. In addition, although the current position is within a predetermined distance from the destination and it is detected that the vehicle has entered the parking lot on condition that it is not in the vicinity of the destination, the vehicle is searched again from the current position to the destination. Alternatively, it may be possible to select whether or not to perform a re-search, or it may be possible to select whether to display or print out the search result. Further, even when the distance is not within the range of the predetermined distance, for example, a re-search from the current position to the destination may be performed by selection. That is, in such a case, it can be considered that the parking lot was temporarily stopped for some purpose. Therefore, in this case, since the vehicle travels to the destination again rather than walking to the destination, the route guidance is not the building shape map but the ordinary vehicle navigation device using the road map. .

[0035]

As is apparent from the above description, according to the present invention, it is detected that the vehicle has entered the parking lot around the destination, and the parking lot is detected to be located near the destination or within a predetermined distance. Since the route to the destination is re-searched accordingly, even if there is no parking lot on the site of the destination, guidance of the route from the parking lot to the destination can be provided reliably. Furthermore, if the driver can park near the destination, such as on the site of the destination or adjacent to the destination, the user does not need guidance, so a predetermined distance range can be set near the destination and parking can be performed very close to the destination. In this case, the route is not searched again, so that unnecessary guidance can be eliminated. Also, if the route searched again by the output device such as a printer can be output as a building shape map, it is possible to proceed on the way to the destination while checking the map.

[Brief description of the drawings]

FIG. 1 is a vehicle navigation device 1 according to the present invention.
It is a figure showing an example composition.

FIG. 2 is a diagram showing a configuration example of road guidance data and the like.

FIG. 3 is a diagram showing a configuration example of road attribute data and the like.

FIG. 4 is a diagram showing a configuration example of attention point data and the like.

FIG. 5 is a diagram showing a configuration example of data of a building shape map.

FIG. 6 is a diagram for explaining a flow of the entire system of the vehicle navigation device according to the present invention.

FIG. 7 is a diagram for explaining re-search processing from the vicinity of a destination.

FIG. 8 is a diagram illustrating a process of displaying a building shape.

FIG. 9 is a diagram for explaining a building name display process.

FIG. 10 is a diagram showing a display example of a route guide map from a parking lot to a destination based on a building shape map.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 input / output device, 2 current position detecting device, 3 information storage device, 4 central processing device, 11 touch switch, 12
... Display, 13 ... Printer, 16 ... Speaker, 2
1 ... GPS receiver, 22 ... VICS information receiver, 2
3 ... Data transmitting / receiving device, 24 ... Absolute direction sensor, 25 ...
Relative direction sensor, 25 is a distance sensor, 40 ... CPU, 4
1 ... 1st ROM, 42 ... RAM, 43 ... 2nd ROM, 4
4 ... Image memory, 45 ... Image processor, 46 ... Voice processor, 47 ... Communication interface, 48 ... Input interface

Claims (15)

[Claims] 1. A vehicular navigation device that searches for a route to a destination and guides the vehicle, detects that the vehicle has entered a parking lot, determines a distance from the parking lot to the destination, and determines a distance from the parking lot. A navigation device for a vehicle having a re-search function, which re-searches and outputs a route to a destination. 2. The vehicle with a re-search function according to claim 1, wherein the search is performed again on condition that the parking lot is within a predetermined distance from the destination and not near the destination. Navigation device. 3. The navigation system for a vehicle having a re-search function according to claim 1, wherein if the parking lot is not within a predetermined distance from the destination, it is determined that the parking lot is a detour and the search is not performed again. apparatus. 4. The vehicle navigation device having a re-search function according to claim 1, wherein the guidance is terminated when the parking lot is near the destination. 5. The vehicle navigation device having a re-search function according to claim 1, wherein a route to a destination searched by a shape map of a building, a facility, or another building is output. 6. The navigation apparatus for a vehicle having a re-search function according to claim 1, wherein the shape map is displayed by changing a display mode according to a feature of a building and giving priority to a name. 7. The vehicle navigation device having a re-search function according to claim 1, wherein the shape map is printed out. 8. A vehicle navigation device for searching for and guiding a route to a destination, comprising: a current position detecting device for detecting a current position of a host vehicle; map information for performing a route search and route guidance; An information storage device that stores route information, an input device that inputs a point such as a destination, and inputs an instruction to execute a route search from the current position detected by the current position detection device to the destination; An output device that outputs information for route guidance; and a route search from the current position to the destination based on the map information, and temporarily stores the searched route to provide route guidance based on the route. And a central processing unit that outputs a signal for performing to the output device, the central processing unit,
A re-search function characterized by detecting that the vehicle has entered the parking lot, determining the distance from the parking lot to the destination, re-searching and outputting the route from the parking lot to the destination. Vehicle navigation device. 9. Searching for a route to a destination based on map information and other route information for performing a route search and route guidance, and the route information, and detecting that the vehicle has entered a parking lot. A program for determining the distance from the parking lot to the destination and re-searching and outputting the route from the parking lot to the destination. Storage media. 10. The program according to claim 1, wherein the program searches again on condition that the parking lot is within a predetermined distance from the destination and not near the destination. A storage medium for a vehicle navigation device having a search function. 11. The program according to claim 9, wherein if the parking lot is not within a predetermined distance from the destination, it is determined that the parking lot is a detour and the search is not performed again. A storage medium for a vehicle navigation device having a re-search function. 12. The storage device according to claim 9, wherein the program terminates the guidance when the parking lot is near the destination. Medium. 13. The re-search function according to claim 9, wherein the program outputs a route to a destination searched by a shape map of a building, a facility, or another building. A storage medium for a vehicle navigation device. 14. The vehicle navigation device having a re-search function according to claim 9, wherein the shape map changes a display mode according to a feature of the building and displays the name with priority. Storage medium. 15. The storage medium according to claim 9, wherein the program prints and outputs the shape map.