WO2007108354A1

WO2007108354A1 - Navigation device, route setting method, travel route setting method, program for executing these methods, and recording medium

Info

Publication number: WO2007108354A1
Application number: PCT/JP2007/054879
Authority: WO
Inventors: Katsunori Oritani; Manabu Kiyota; Yasuo Ogiwara; Kenji Nakamura; Koichi Kikuchi; Kiyoshi Morikawa
Original assignee: Pioneer Corporation
Priority date: 2006-03-20
Filing date: 2007-03-13
Publication date: 2007-09-27

Abstract

A guide information generation unit (107) acquires from a storage unit (102), information on a road width and traffic signs (such as one way, width reduction, height limit, and weight limit) concerning each route contained in route guide information generated by a route guide information generation unit (106). Here, each of the acquired information pieces is correlated with the information on the traveling vehicle size acquired by the vehicle information acquisition unit (103) and a route where the vehicle can travel is selected from the route guide information generated by the route guide information generation unit (106). A position recognition unit (105) acquires map information of a predetermined range around the acquired vehicle position information from the storage unit (102) and the map information is superimposed on the selected route to be displayed on a display unit (101).

Description

Specification

NAVIGATION DEVICE, ROUTE SETTING METHOD, TRAVEL ROUTE SETTING METHOD, PROGRAM FOR EXECUTING THEM, AND RECORDING MEDIUM

Technical field

The present invention relates to a navigation device, a route setting method, a travel route setting method, a program for executing these methods, and a recording medium.

Background art

In recent years, various navigation devices that provide information useful for driving a car have been proposed. A general navigation device detects the position and direction of the vehicle with a GPS receiver or a gyro, and uses the detected vehicle position to the destination or waypoint input by a remote control or voice recognition device. Based on this, the guide route is calculated, the vehicle position and its surrounding map are displayed on the display, and the map is scrolled so that the position of the vehicle is planned to the destination. See 1 and 2).

Patent Document 1: Japanese Patent Laid-Open No. 6-309595

Patent Document 2: Japanese Unexamined Patent Application Publication No. 2004-94444

Disclosure of the invention

Problems to be solved by the invention

[0004] However, in the conventional navigation device, the user can search for a route to a destination desired by the user by setting several points as a waypoint in advance. Yes, but no specific road conditions (eg road width or height restrictions) can be presented. Therefore, there is a problem that it cannot be determined whether or not the vehicle can actually pass through only the information provided by the navigation device. Some conventional navigation devices can present traffic congestion information and accident information in addition to route search, but such devices cannot present road conditions as described above. Means for solving the problem

[0005] The navigation device according to the invention of claim 1 includes display means for displaying various information, vehicle information acquisition means for acquiring vehicle size information, and an object selected by the user. Destination point information acquisition means for acquiring point information, position recognition means for acquiring host vehicle position information, destination point information acquired by the destination point information acquisition means, and host vehicle position acquired by the position recognition means Route guidance information generating means for calculating a route to the destination from the information and generating route guidance information to the destination, and roads related to each route included in the route guidance information generated by the route guidance information generating means The width and road sign information is acquired, and each of the acquired information and the vehicle size information of the own vehicle acquired by the vehicle information acquisition unit are collated, and the route guidance information generated by the route guidance information generation unit A route that can be traveled by the host vehicle is selected, and the selected route is displayed on the display unit by superimposing the selected route on map information within a predetermined range centered on the vehicle position information acquired by the position recognition unit. Guidance information A generation unit, characterized in that it comprises.

[0006] Further, the navigation device according to the invention of claim 3 sets a vehicle information acquisition means for acquiring vehicle information, vehicle information acquired by the vehicle information acquisition means, and a route to the destination. Route setting means for setting a route to a destination by selecting a road on which the vehicle having the vehicle information can pass on the basis of road information used when performing the above, and the route in the route set by the route setting means Travel calculation means for calculating the total travel distance or total travel time to the destination, display means for displaying the route superimposed on map information together with at least the vehicle position of the vehicle, and a route to the destination If there is another route that is shorter than the total travel distance or total travel time calculated by the travel calculation means, the vehicle cannot pass on the other route. Characterized in that and a control means for displaying on said display means the information indicating that.

[0007] Further, the route setting method according to the invention of claim 4 includes a vehicle information acquisition step of acquiring information such as the total length, width, height, and weight of the host vehicle, and acquiring information of a destination point. A destination point information acquisition step, a host vehicle location information acquisition step for acquiring host vehicle location information, a route guidance information generation step for calculating a route to the destination and generating route guidance information to the destination; Road width and road sign information acquisition process for obtaining road width and road sign information for each route included in the route guidance information, and road width and road sign information acquired in the road width and road sign information acquisition process. And the vehicle information of the own vehicle acquired in the vehicle information acquisition step, and from the route guidance information generated in the route guidance information generation step It includes a route selection step for selecting a route that can be passed by the host vehicle, and a guide information display step for displaying the selected route superimposed on the map information.

[0008] Further, the travel route setting method according to the invention of claim 5 is used for setting vehicle information acquisition step of acquiring vehicle information, the acquired vehicle information, and a route to the destination. A route setting step of selecting a road on which the vehicle having the vehicle information can pass based on the road information to be set and setting a travel route to the destination, and to the destination on the set travel route A travel calculation step for calculating a total travel distance or a total travel time, a display step for displaying the travel route superimposed on map information together with at least the position of the vehicle, and a travel route to the destination If there is another travel route that is shorter than the total travel distance or total travel time calculated by the travel calculation means, information indicating that the vehicle cannot pass on the other travel route. Characterized in that it comprises a control step of displaying together with the serial driving route.

[0009] Further, a program for the invention described in claim 6 causes the computer to execute the method described in claim 4 or 5.

[0010] Further, a computer-readable recording medium according to claim 7 is characterized in that the program according to claim 6 is recorded.

Brief Description of Drawings

FIG. 1 is a block diagram showing an example of a functional configuration of a navigation device that is effective in an embodiment of the present invention.

[FIG. 2] FIG. 2 is a block diagram showing another example of the functional configuration of the navigation device that is effective in the embodiment of the present invention.

FIG. 3 is a flowchart showing an example of a processing procedure of the navigation apparatus which is particularly effective in the embodiment of the present invention.

[FIG. 4] FIG. 4 is a flowchart showing another example of the processing procedure of the navigation apparatus, which is effective in the embodiment of the present invention.

FIG. 5 is a block diagram showing an example of a hardware configuration of the navigation device according to the embodiment of the present invention.

[Fig. 6] Fig. 6 shows an example of a processing procedure of the navigation apparatus which is effective in the embodiment of the present invention. t Flow chart.

7] FIG. 7 is a route plan presented by the navigation device that is effective in the embodiment of the present invention.

Yes

It is a figure which shows an example of an inner figure.

8] FIG. 8 is a diagram showing an example of a route plan diagram presented by the navigation device that is effective in the embodiment of the present invention.

Explanation of symbols

200, 500 navigation equipment

101, 204 display

102 R 匚, station, P "| 5

103, 201 Vehicle information acquisition unit

104 Destination information acquisition unit

105 Position recognition unit

106 Route guidance information generator

107 Guide information generator

202 Route setting part

203 Travel calculation part

205 Control unit

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, a navigation device, a route setting method, a travel route setting method, a program for executing these methods, and a preferred embodiment of a recording medium according to the present invention will be described in detail with reference to the accompanying drawings. .

[0014] (Functional configuration of navigation device)

FIG. 1 is a block diagram showing an example of a functional configuration of a navigation apparatus that is useful for an embodiment of the present invention. The navigation device 100 is assumed to be provided in a vehicle (whether a four-wheeled vehicle or a two-wheeled vehicle). As shown in FIG. 1, a display unit 101, a storage unit 102, a vehicle information acquisition unit, 103, a destination point information acquisition unit 104, a position recognition unit 105, a route guidance information generation unit 106, and a guidance information generation unit 107.

[0015] The display unit 101 displays information on the user's existing location, information on the destination selected by the user, etc. Is displayed.

[0016] The storage unit 102 provides map information to be provided to the user, road width of each motorway, road sign information (for example, information such as one-way street, width reduction, height limit, weight limit). Storing. The storage unit 102 can be connected to the navigation device 100 via a network.

The vehicle information acquisition unit 103 acquires information on the vehicle size of the automobile equipped with the navigation device 100. The vehicle size information includes, for example, the total length, width, height, and weight of the vehicle. The vehicle information acquisition unit 103 is a method for acquiring vehicle size information. It is possible to connect to a database in which various data are registered, and based on the vehicle name and model year from the registered data. The method of searching can be considered. Alternatively, a method in which the user directly inputs vehicle size information with reference to vehicle verification may be used.

[0018] The destination point information acquisition unit 104 acquires information on the destination point selected by the user.

[0019] The position recognition unit 105 acquires the vehicle position information. Here, the vehicle position information is obtained by receiving the radio wave of the GPS satellite force and obtaining the geometric position with the GPS satellite, and can be measured anywhere on the earth. As the radio wave, use the L1 radio wave with a C / A (Coarse and Access) code and navigation message with a carrier wave of 1 · 575.42MHz. Thereby, the current position (latitude and longitude) of the vehicle is detected. Furthermore, information collected by various sensors such as a vehicle speed sensor and a gyro sensor may be taken into account.

The route guidance information generation unit 106 calculates a plurality of routes to the destination from the destination point information acquired by the destination point information acquisition unit 104 and the own vehicle position information acquired by the position recognition unit 105. Then, route guidance information to the destination is generated in real time based on the vehicle position information that is displaced every moment.

[0021] The guidance information generation unit 107 is configured to provide road width and road sign information (for example, one-way traffic, width reduction, height restriction, weight) regarding each route included in the route guidance information generated by the route guidance information generation unit 106. Information such as restrictions) is acquired from the storage unit 102. Each piece of information obtained here can be compared with the information on the vehicle size of the vehicle acquired by the vehicle information acquisition unit 103, and the vehicle can be passed by the vehicle from the route guidance information generated by the route guidance information generation unit 106. Select a route. Then, a map of a predetermined range centered on the vehicle position information acquired by the position recognition unit 105 Information is acquired from the storage unit 102, and the selected route is superimposed on the map information and displayed on the display unit 101.

FIG. 2 is a block diagram showing another example of the functional configuration of the navigation device that is useful for the embodiment of the present invention. This navigation device 200 is also assumed to be provided in a vehicle (regardless of four-wheeled vehicle or two-wheeled vehicle). As shown in FIG. 2, a vehicle information acquisition unit 201, a route setting unit 202, and a travel calculation A unit 203, a display unit 204, and a control unit 205 are provided.

[0023] The vehicle information acquisition unit 201 acquires vehicle information of an automobile equipped with the navigation device 200.

The route setting unit 202 is based on the vehicle information acquired by the vehicle information acquisition unit 201 and the road information used when setting the route to the destination. Select a possible road and set a route to the destination.

The travel calculation unit 203 calculates the total travel distance or total travel time to the destination on the route set by the route setting unit 202.

[0026] The display unit 204 displays the route with the map information superimposed on at least the vehicle position of the vehicle.

[0027] When there is another route that is shorter than the total travel distance or total travel time calculated by the travel calculation unit 203 as a route to the destination, the control unit 205 uses the other route. Information indicating that the vehicle cannot pass is displayed on the display unit 204.

[0028] (Processing procedure of navigation device)

FIG. 3 is a flowchart showing an example of the processing procedure of the navigation apparatus according to the embodiment of the present invention. FIG. 3 is a diagram for explaining the processing of the navigation device shown in FIG. In the following, based on FIG. 3, the processing procedure of the navigation device which is useful for the embodiment of the present invention will be described.

In the flowchart of FIG. 3, first, vehicle information is acquired (step S301). Here, the vehicle information acquisition unit 103 acquires information on the vehicle size of the automobile in which the navigation device 100 is provided. The vehicle size information includes, for example, the total length, width, height, and weight of the vehicle. The vehicle information acquisition unit 103 acquires the vehicle size information. However, it is possible to connect to a database in which various data are registered in advance, and to perform a search based on the vehicle name and year from the registered data. Moreover, the method in which a user directly inputs various information with reference to vehicle verification may be used.

Next, information on the destination point is acquired (step S302). Here, the destination point information acquisition unit 104 acquires information on the destination point selected by the user.

Next, own vehicle position information is acquired (step S303). Here, the position recognition unit 105 acquires the vehicle position information.

[0032] Next, a plurality of routes to the destination are calculated, and route guidance information to the destination is generated (step S304). This process is performed by the route guidance information generation unit 106.

[0033] Next, road width and road sign information regarding each route included in the route guidance information is acquired.

(Step S305). The road sign information is, for example, information such as one-way street, width reduction, height restriction, weight restriction. This process is performed by the guidance information generation unit 107.

[0034] Next, a route that can be passed by the host vehicle is selected (step S306). Specifically, the guide information generation unit 107 collates the road width and road sign information regarding each route acquired in step S205 with the vehicle size information of the own vehicle acquired in step S201. S2

From the route guidance information generated in 04, select the route that can be passed by the vehicle.

[0035] Finally, the selected route is displayed superimposed on the map information (step S307). Specifically, the guidance information generation unit 107 acquires map information in a predetermined range centered on the vehicle position information acquired in step S203 from the storage unit 102, and the route selected in step S206 in the map information. Are superimposed and displayed on the display unit 101.

FIG. 4 is a flowchart showing another example of the processing procedure of the navigation device according to the embodiment of the present invention. FIG. 4 is a diagram for explaining processing of the navigation device shown in FIG. In the following, based on FIG. 4, the processing procedure of the navigation device that is relevant to the embodiment of the present invention will be described.

In the flowchart of FIG. 4, first, vehicle information is acquired (step S401). This process is performed by the vehicle information acquisition unit 201.

Next, a route to the destination is set (step S402). Here, the route setting unit 2

02 is the road used when setting the route to the destination and the acquired vehicle information. Based on the road information, a road on which the vehicle having the vehicle information can pass is selected and a travel route to the destination is set.

[0039] Next, the total travel distance or total travel time to the destination is calculated (step S403). Here, the travel calculation unit 203 calculates the total travel distance or total travel time to the destination on the route set by the route setting unit 202.

Next, simple information is displayed (step S404). Specifically, the display unit 204 displays the travel route superimposed on the map information together with at least the vehicle position of the vehicle.

[0041] Finally, detailed information is displayed (step S405). Specifically, when the control unit 205 has another route shorter than the total travel distance or total travel time calculated by the travel calculation unit 203 as the route to the destination, Information indicating that the vehicle cannot pass on the route is displayed on the display unit 204.

As described above, in the navigation device of this embodiment, it is possible to pass by the own vehicle and only the optimum route can be presented to the user. For this reason, it is possible to travel the vehicle following the optimal route to the destination, and it is possible to reduce the time to reach the destination.

Example

Next, examples of the present invention will be shown.

[0044] (Hardware configuration of navigation device)

FIG. 5 is a block diagram showing an example of a hardware configuration of the navigation apparatus according to the embodiment of the present invention. Hereinafter, the hardware configuration of the navigation apparatus 500 will be described with reference to FIG.

As shown in FIG. 5, the navigation apparatus 500 includes a CPU 501, ROM 502, RAM 503, magnetic disk drive 504, magnetic disk 505, optical disk drive 506, optical disk 507, and audio IZF ( Interface) 508, microphone 509, speaker 510, input device 511, video I / F (interface) 512, display 513, communication I / F (interface) 514, GPS unit 515, various types And a sensor 516. The components 501 to 516 are connected by a bus 520, respectively.

First, the CPU 501 governs overall control of the navigation device 500. ROM502 For example, various programs such as a boot program, a route search program, a route guidance program, a voice generation program, a map information display program, a communication program, a database creation program, and a data analysis program are recorded. CPU501 force By executing each of the above programs, the vehicle information acquisition unit 103, the destination point information acquisition unit 104, the route guidance information generation unit 106, the guidance information generation unit 107, and the vehicle shown in FIG. The functions of the information acquisition unit 201, route setting unit 202, travel calculation unit 203, and control unit 205 are realized.

[0047] The route search program searches for an optimum route from the departure point to the destination using map information recorded on the optical disc 507, which will be described later. A detailed description of this route search program will be described later. The guidance route searched by executing this route search program is output to the audio IZF508 and the video IZF512 via the CPU501, for example.

[0048] The route guidance program is read from the optical disc 507, the guidance route information searched by executing the route search program described above, the current position of the navigation device 500 acquired by the communication I / F 514, and the like. Real-time route guidance information can be generated based on the map information. The route guidance information generated by executing the route guidance program is output to the audio I / F 508 and the video I / F 512 via the CPU 501, for example.

[0049] The sound generation program generates tone and sound information corresponding to the sound pattern. That is, based on the route guidance information generated by executing the route guidance program, the virtual sound source corresponding to the guidance point is set and the voice guidance information is generated, for example, to the voice I / F 508 via the CPU 501. Output.

[0050] Further, the map information display program determines the display format of the map information to be displayed on the display 513 by the video I / F 512, and displays the map information on the display 513 according to the determined display format.

The RAM 503 is used as a work area for the CPU 501, for example. The magnetic disk drive 504 controls reading / writing of data with respect to the magnetic disk 505 according to the control of the CPU 501. The magnetic disk 505 records data written under the control of the magnetic disk drive 504. [0052] Specifically, the magnetic disk drive 504 records, for example, a warning sound generated by the above-described notification program on the magnetic disk 505 as sound data. As the magnetic disk 505, for example, HD (node disk) or FD (flexible disk) can be used.

The optical disk drive 506 controls reading / writing of data with respect to the optical disk 507 according to the control of the CPU 501. The optical disc 507 is a detachable recording medium from which data is read from the optical disc 507 under the control of the optical disc drive 506. As the optical disc 507, a writable recording medium can be used. In addition to the optical disk 507, an MO, a memory card, or the like can be used as a removable recording medium.

[0054] As an example of information recorded on the magnetic disk 505 and the optical disk 507, voice information inside and outside the vehicle obtained by the microphone 509 described later, position information indicating the current position of the vehicle detected by the GPS unit 515 described later, Examples include output values from various sensors 516 described later. These pieces of information are used in the above-described route search program.

Other examples of information recorded on the magnetic disk 505 and the optical disk 507 include map information used for route search / route guidance. The map information includes background data representing features (features) such as buildings, rivers, and the ground surface, and road shape data representing the shape of the road, and can be displayed in 2D or 3D on the display screen of the display 513. It is drawn. When the navigation apparatus 500 is guiding a route, the map information and a vehicle mark indicating the current position of the vehicle acquired by the GPS unit 515 described later are displayed in an overlapping manner.

[0056] The road shape data further includes traffic condition data. The traffic condition data includes, for example, the presence / absence of traffic lights and pedestrian crossings for each node, the presence / absence of highway entrances and junctions, the length (distance) for each link, road width, direction of travel, road type (high speed Road, toll road, general road, etc.).

In the traffic condition data, past traffic jam information is stored as past traffic jam information statistically processed based on the season / day 'large consecutive holidays' time. This navigation device 500 is used, for example, according to road traffic information received by a communication I / F 514 described later. Information on the currently occurring traffic jam is obtained. By using the above-mentioned past traffic jam information, it is also possible to predict the traffic jam status at a specified time, for example.

In this embodiment, the map information is recorded on the magnetic disk 505, the optical disk 507, etc., but the present invention is not limited to this. The map information may be provided outside the navigation device 500, not the one recorded with the hardware of the navigation device 500 alone. In this case, the navigation device 500 may acquire the map information via the network through the communication I / F 514, for example. The map information acquired in this way is stored in the RAM 503, for example.

The audio IZF 508 is connected to an audio input microphone 509 and an audio output speaker 510. Audio received by the microphone 509 is AZD converted in the audio I / F 508. Note that the speaker 510 may be provided outside the vehicle only inside the vehicle. From the speaker 510, sound based on the sound signal from the sound I / F 508 is output. In addition, sound input from the microphone 509 can be recorded on the magnetic disk 505 or the optical disk 507 as sound data, for example.

[0060] Examples of the input device 511 include a remote controller, a keyboard, a mouse, a touch panel, and the like provided with a plurality of keys for inputting characters, numerical values, various instructions, and the like.

In addition, the video I / F 512 is connected to the display 513. Specifically, this video I / F 512 includes, for example, a graphic controller that controls the entire display 513, a buffer memory such as VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. This is configured by a control IC that controls the display of the display 513 based on image data output from the display 513.

[0062] Display 513 displays an icon, a cursor, a menu, a window, or various data such as characters and images. As this display 513, for example, a CRT, a TFT liquid crystal display, a plasma display or the like can be adopted.

[0063] In addition, the communication IZF 514 is connected to the network via radio, and is a navigation device.

Functions as an interface between 500 and CPU501. The communication I / F 514 is further connected to a communication network such as the Internet via radio, and functions as an interface between the communication network and the CPU 501. [0064] The network includes a LAN, a WAN, a public line network, a mobile phone network, and the like. Specifically, the communication I / F 514 includes, for example, an FM tuner, a VICS (Vehicle Information and Communication System: registered trademark) / beacon radio, a wireless navigation device, and other navigation devices. Obtain road traffic information such as traffic congestion and traffic regulations delivered from the center.

In addition, the GPS unit 515 calculates position information indicating the current position of the vehicle (the current position of the navigation device 500) using the received wave from the GPS satellite and the output values from various sensors 516 described later. . The position information indicating the current position is information specifying one point on map information such as latitude and longitude, altitude, for example. Further, the GPS unit 515 outputs an odometer, a speed change amount, an azimuth change amount, and the like using output values from the various sensors 516. Thereby, the dynamics of the vehicle such as a sudden brake and a sudden handle can be analyzed. This GPS unit 515 implements the function of the position recognition unit 105 shown in FIG.

[0066] Various sensors 516 are a vehicle speed sensor, an acceleration sensor, an angular velocity sensor, an orientation sensor, and the like, and their output values are used for calculation of position information by the GPS unit 515 and measurement of changes in speed and orientation. .

[0067] The various sensors 516 include a sensor that detects each operation of the vehicle by the driver. For example, each operation of the vehicle can be detected as a configuration that detects steering wheel operation, winker input, or opening / closing of the vehicle door.

[0068] (Processing procedure of navigation device)

FIG. 6 is a flow chart showing an example of the processing procedure of the navigation apparatus that is effective in the embodiment of the present invention. Hereinafter, based on FIG. ₆ , the processing procedure of the navigation apparatus that is useful in the embodiment of the present invention will be described.

In the flowchart of FIG. 6, first, it is detected whether or not there is a destination setting (step S601). If there is no destination setting (step S601: No), the process of step S601 is performed again. On the other hand, if there is a destination setting in step S601 (step S601: Yes), a route search is started (step S602).

Next, vehicle information is acquired (step S603). Examples of vehicle information include vehicle width, vehicle height, and weight (dry weight X coefficient for vehicle verification). As information acquisition, Selection from a list of vehicle data that the device has or manual input is conceivable.

Next, information on candidate links is acquired (step S604). Here, candidate link information from the database to the destination, for example, the width is acquired.

Next, road regulation information is acquired (step S605). Specifically, information such as one-way streets, tunnel height, and crossing width is obtained from VICS. This information may be acquired at all times rather than only during the route search. This road regulation information is information corresponding to the candidate link information acquired in step S404.

Next, the vehicle information is compared with the candidate link information (step S606). Specifically, the width is extracted from the candidate link information, and the width is compared with the vehicle width in the vehicle information. For example, if the difference between the width and the vehicle width is less than 50 cm, it is judged as a road that is difficult to drive, and if it is more than 50 cm, it is judged as a road that can be easily driven by normal driving. If the width includes the oncoming lane, the width is simply compared with half the information. On the other hand, if there are multiple lanes in one direction, contrast with the width of the lane.

Next, it is determined whether or not the vehicle can pass normally without decelerating (step S607). Here, when the vehicle can pass normally without decelerating (step S607: Yes), subsequently, it is detected whether or not road regulation information exists in the candidate link (step S608). Here, if there is no road regulation information in the candidate link (step S608: No), it is adopted as the route link (step S609).

Subsequently, it is determined whether or not the evaluation of the candidate link to the destination has been completed (step S610). If the evaluation of the candidate link to the destination has not been completed (step S610: No), the process returns to step S606. On the other hand, when the evaluation of the candidate link to the destination is completed (step S610: Yes), the route is determined (step S611). Here, when multiple recommended routes are calculated, the most recommended route based on distance, shape, etc. will be adopted. Next, the route symbol (or non-acceptance symbol) is displayed superimposed on the map (step S612). Then, route guidance is started (step S613).

[0076] If the vehicle cannot pass normally unless it decelerates in step S607 (step S607: No), a non-adopting flag is set (step S614). Then, a symbol for the link that has not been adopted is generated (step S615). After this, the process proceeds to step S612. [0077] If road restriction information exists in the candidate link in step S608 (step S608: Yes), the content of the road restriction is confirmed (step S616). A non-recruited flag is set up (step S617). Thereafter, the process proceeds to step S615.

FIG. 7 and FIG. 8 are diagrams showing an example of a route guide map presented by the navigation device which is effective in the embodiment of the present invention. The bold line portion in the figure indicates the guided route. In addition, information on the road that was not selected as a route (information on the cause of traffic obstruction) is also presented. In addition, the total travel distance or total travel time of the route when the link not adopted is temporarily adopted and the route of only the adopted link is compared, and when the link not adopted is temporarily adopted If the total travel distance or total travel time is advantageous, a symbol may be added only to the link on the route.

[0079] According to the navigation device of the embodiment of the present invention, according to the procedure described above, a route that can be normally traveled by the host vehicle without a failure and that has the shortest travel distance or travel time is selected, It can be presented to the user. Therefore, the vehicle can be made to travel along the optimum route to the destination, and the time to reach the destination can be shortened.

It should be noted that the navigation method comprising the route setting method and the travel route setting method described in this embodiment is realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. Can do. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed through a network such as the Internet.

Further, in this embodiment, an example is shown in which the above navigation method is executed by a navigation device that can be mounted on a vehicle. However, the navigation method can be executed by a personal computer, a mobile phone, a personal digital assistant (PDA), etc., as well as a navigation device alone.

Claims

The scope of the claims

[1] display means for displaying various information;

Vehicle information acquisition means for acquiring vehicle size information;

Destination point information acquisition means for acquiring information of the destination point selected by the user, position recognition means for acquiring own vehicle position information,

Route guidance information generation that calculates a route to the destination from the destination point information acquired by the destination point information acquisition unit and the vehicle position information acquired by the position recognition unit, and generates route guidance information to the destination Means,

Obtaining road width and road sign information about each route included in the route guidance information generated by the route guidance information generating means;

By comparing each acquired information with the vehicle size information of the own vehicle acquired by the vehicle information acquiring means, a route that can be passed by the own vehicle is selected from the route guidance information generated by the route guidance information generating means. And

Guidance information generating means for superimposing the selected route on map information together with own vehicle position information acquired by the position recognition means and displaying on the display means;

A navigation apparatus characterized by comprising:

[2] Furthermore, a storage means is provided,

2. The navigation device according to claim 1, wherein the storage means stores map information to be presented to a user, road width of each motorway, road sign information, and the like.

[3] vehicle information acquisition means for acquiring vehicle information;

Based on the vehicle information acquired by the vehicle information acquisition means and the road information used when setting the route to the destination, a route on which the vehicle having the vehicle information can pass is selected and the destination is selected. Route setting means for setting a route to

Travel calculation means for calculating the total travel distance or total travel time to the destination on the route set by the route setting means;

Display means for displaying the route superimposed on map information together with at least the vehicle position of the vehicle; If there is another route that is shorter than the total travel distance or total travel time calculated by the travel calculation means as a route to the destination, the vehicle cannot pass through the other route. And a control means for displaying information to be displayed on the display means.

[4] A vehicle information acquisition process for acquiring information such as the total length, width, height, and weight of the vehicle;

A destination information acquisition process for acquiring destination information;

Own vehicle position information acquisition step for acquiring own vehicle position information;

A route guidance information generation process for calculating a route to the destination and generating route guidance information to the destination;

Road width and road sign information acquisition step for acquiring road width and road sign information for each route included in the route guidance information; and

The road width and road sign information acquired in the road width / road sign information acquisition step and the vehicle information of the own vehicle acquired in the vehicle information acquisition step are collated and generated in the route guidance information generation step. A route selection process for selecting a route that can be traveled by the host vehicle from the route guidance information obtained;

A route setting method, comprising: a guide information display step of displaying a selected route superimposed on map information.

[5] A vehicle information acquisition process for acquiring vehicle information;

Based on the acquired vehicle information and road information used when setting a route to the destination, a road on which the vehicle having the vehicle information can pass is selected and a travel route to the destination is set. A route setting process,

A travel calculation step of calculating a total travel distance or a total travel time to the destination on the set travel route;

A display step of displaying the travel route superimposed on map information together with at least the vehicle position of the vehicle;

When there is another travel route in which the total travel distance calculated by the travel calculation means is shorter than the total travel time as a travel route to the destination, the vehicle is connected to the other travel route. Information indicating that the vehicle cannot pass is displayed along with the route. Control process

A travel route setting method comprising:

[6] A program that causes a computer to execute the method according to claim 4 or 5.

[7] A computer-readable recording medium in which the program according to claim 6 is recorded.