JP4183534B2 - Method for guiding detour during non-guidance and navigation device for performing the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation apparatus having a guidance function for searching for a route to a destination and performing guidance to the destination according to the searched route, and more particularly to guidance for a detour during non-guidance.
[0002]
[Prior art]
The navigation device reads the map data around the vehicle position from a map storage medium such as a DVD or HDD by detecting the current position of the vehicle, draws the map on the display screen, and draws the vehicle mark on the map. To do. When the current position changes due to the movement of the vehicle, the map is scrolled or the vehicle mark on the map is moved accordingly, and the map information around the vehicle position is presented to the user in an easy-to-understand manner.
[0003]
The navigation device has a function of searching for a route to a destination set by the user and guiding the route. The route guidance function uses map data to search for a low-cost route from the current vehicle position to the destination using the Dijkstra method, etc., stores the searched route in the memory as guidance route data, and runs The route is displayed on the display.
[0004]
On the other hand, when the user is not instructed to search for a route to the destination, in other words, when the vehicle is not being guided, a map around the vehicle position is displayed on the display. For example, using a two-screen display as shown in FIG. 14, a map around the vehicle position is displayed on the left screen, the name of the road on which the vehicle is currently traveling, the names of the intersections before and after, along with a general road map on the right screen. The distance to the next intersection, the address of the current location, etc. are displayed.
[0005]
Some navigation devices have a function of searching for a detour when a traffic jam occurs. Patent Document 1 discloses a technique in which when a bypass is searched, the searched bypass is displayed, and an operator selects a desired bypass from the displayed bypass. Patent Document 2 discloses a technique for setting a section that avoids traveling, searching for a plurality of detours that bypass the section, displaying them on the screen, and allowing the user to select one of the detours. Patent Document 3 discloses a technique for displaying an identification mark indicating whether or not other roads existing up to an intersection can be detoured when approaching an intersection on a guidance route.
[0006]
[Patent Document 1]
JP 2001-227965 A
[Patent Document 2]
JP 2002-243480 A
[Patent Document 3]
JP 2001-141480 A
[0007]
[Problems to be solved by the invention]
However, the conventional navigation device has the following problems. Generally, there are few users who set a destination every time they drive and guide the route, and in most cases, it is considered that they are not guiding. Even if there is a need for a detour when a heavy traffic jam, closed road, accident, etc. is discovered in the immediate vicinity during non-guidance, the detour cannot be searched immediately if it is non-guidance, which is convenient It was lacking in sex. In addition, there are cases where the road that is currently running or the road that branches off from that road becomes a dead end or a dead end, but because it is not being guided, it is not intended to properly inform the user of the dead end or the dead end. There wasn't.
[0008]
Accordingly, the present invention solves the above-described conventional problems, and can search for a detour and inform the user of the detour even when the non-guidance is being performed, and a navigation device that performs the same I will provide a.
[0009]
[Means for Solving the Problems]
A navigation device according to the present invention has a guidance function for searching for a route to a destination, guiding to the destination according to the searched route, and detecting a position of the vehicle and outputting position detection information Detection means, road traffic information receiving means for receiving road traffic information sent from outside, display means for displaying a vehicle and a map around the vehicle based on the position detection information, and the guidance function being turned off , Searching for a detour that bypasses the traffic injury and displaying the detour on the display means when a traffic fault has occurred on the road on which the vehicle is traveling based on the road traffic information Road control means. As a result, even when the vehicle is not being guided, when there is a traffic jam such as traffic jam or regulation in front of the road on which it is traveling, the user can be informed of a detour that automatically bypasses it, User assistance can be provided.
[0010]
A navigation device according to the present invention has a guidance function for searching for a route to a destination, guiding to the destination according to the searched route, and detecting a position of the vehicle and outputting position detection information Detection means, input means for receiving input from a user, display means for displaying a vehicle and a map around the vehicle based on the position detection information, and instructions from the input means when the guidance function is turned off And a detour control unit that searches for a detour on the road on which the vehicle is traveling and displays the detour on the display unit. Thereby, even during non-guidance, information on a detour can be appropriately supplied to the user by searching for a detour according to an input instruction from the user and performing this guidance.
[0011]
A navigation device according to the present invention has a guidance function for searching for a route to a destination and guiding to the destination according to the searched route, and for a detour guidance method during non-guidance, the following steps: Have Based on road traffic information from the outside, when there is a traffic obstacle on the currently running road, the method includes a step of searching for a bypass for bypassing the traffic obstacle and guiding the bypass.
[0012]
A navigation device according to the present invention has a guidance function for searching for a route to a destination and guiding to the destination according to the searched route, and for a detour guidance method during non-guidance, the following steps: Have In accordance with an instruction from the user, there is a step of searching for a detour on the currently traveling road and guiding the detour.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a navigation apparatus according to an embodiment of the present invention. The navigation device 1 includes a GPS receiver 10, a self-contained navigation sensor 11, a VICS / FM multiplex receiver 12, an operation panel 20, a voice input unit 21, a remote control operation unit 22, an input interface 23, a storage unit 30 that stores map data and the like. , An audio output unit 40, a speaker 41, a display control unit 50, a display 51, a program memory 60, a data memory 70, and a control unit 80 for controlling each unit.
[0014]
The GPS receiver 10 receives radio waves from an artificial satellite (GPS satellite) and measures the current position and current direction of the vehicle. The self-contained navigation sensor 11 includes a vehicle speed sensor that detects a moving distance of the vehicle and an angle that detects a rotation angle of the vehicle. Output signals from the GPS receiver 10 and the self-contained navigation sensor 11 are supplied to the control unit 80, and the control unit 80 calculates the current position and direction of the vehicle based on these output signals. The VICS / FM multiple receiver 12 sequentially receives the current road traffic information outside the vehicle from the antenna 13. Such information includes road traffic jam information, traffic accident information, and the like, and can be obtained by using, for example, optical beacons, radio wave beacons, telephone lines, and FM signals.
[0015]
The operation panel 20, the voice input unit 21, and the remote control operation unit 22 constitute an input of the navigation device 1. Through these inputs, the user gives various instructions and settings such as a search to the destination, a search for a route to the destination, and a display screen setting change to the navigation apparatus 1. The operation panel 20 can use, for example, a plurality of operation keys 52 provided at the lower part of the display 51. The voice input unit 21 transmits a user's voice input from a voice input microphone (not shown) to the input interface 23, and converts the voice analog signal into a digital signal. The remote control operation unit 22 includes a plurality of input keys, and when the user operates the input keys, the input operation is transmitted to the input interface 23 via radio. The input interface 23 is connected to the operation panel 20, the voice input unit 21, and the remote control operation unit 22, and transmits input information input by the user to the control unit 80.
[0016]
The storage unit 30 is a recording medium such as a CD, a DVD, or a hard disk, and stores map data, drawing data, road data, a database of addresses, telephones, facilities, and the like necessary for the navigation device. Preferably, by using a hard disk, large-capacity storage can be realized, and high-speed access and data rewriting are possible. The navigation device 1 further includes a communication control unit 31, which communicates with an external server or the like via a network, downloads the latest map data and facility data from there, and updates the contents of the storage unit 30. be able to. Further, by wirelessly connecting a mobile phone or the like to the communication control unit 31, entertainment information such as facilities and restaurants owned by the navigation device 1 and road information can be given to the mobile phone.
[0017]
The audio output unit 40 is connected to the speaker 41 and outputs sound from the speaker 41 under the control of the control unit 80. For example, as the information to reach the destination, output a voice alerting the direction of the course in front of the intersection, or input the operation to the user when the user inputs interactively to the navigation device Voice instructions are output.
[0018]
The display control unit 50 is connected to the display 51 and displays a map on the display 51 under the control of the control unit 80, or a vehicle mark indicating the current position of the vehicle on the map, a route to the destination, a branch point such as an intersection, etc. The guidance display at, the movement trajectory of the vehicle, etc. are synthesized. Furthermore, information regarding instructions and operations input by the user from the operation panel 20 or the like is displayed on a map or on a different screen. The display control unit 50 preferably includes a VRAM such as a FIFO, stores data related to the map, road, and guidance display read from the storage unit 30 in the VRAM, and synthesizes various data with the map data read from the VRAM. Can be made. The display 51 is a horizontally wide screen using liquid crystal or plasma, for example, and can display two screens under the control of the display control unit 50.
[0019]
The program memory 60 stores various programs executed in the navigation device. For example, a program 61 for searching for a route to the destination and a program 62 for setting / changing a map displayed on the display 51 are included. Furthermore, the present invention includes a detour control program 63 for searching and displaying a detour during non-guidance. The program memory 60 can be configured using a memory such as a ROM or a RAM, or can be stored in the storage unit 30.
[0020]
The data memory 70 stores the processing result processed by the control unit 80, the map data 71 read out from the storage unit 30, and the like. The map data 71 includes link data and node data necessary for searching for a route, and a road network displayed on the display 51. Further, the data memory 70 stores the route data 72 as the search result when the control unit 80 searches for the route to the destination, or the road traffic information received from the VICS / FM multiplex receiver 12. 73 is stored. Further, in the present embodiment, the detour data 74 searched by the detour control program 63 is stored, and these detour data 74 are read when guiding / displaying the non-guided detour. The data memory 70 is preferably a DRAM, SRAM, flash memory or the like. The data memory 70 may include an external memory 75 that can be attached to the navigation device 1.
[0021]
Next, the detour guidance operation during non-guidance will be described.
1. When there is traffic / regulation information from VICS (vehicle Information Communication System) while driving on a general road
The operation flow at this time is shown in FIG. When the navigation device guidance function is not executed, that is, even during non-guidance, when there is a traffic disturbance such as traffic jam or regulation in front of the running road, this is detected by the VICS / FM multiple receiver 12 (step S101). ), Traffic congestion / regulation information is guided by voice guidance or VICS level 3 map display (step S102). In the case of serious traffic jam / regulation information, for example, when the traffic jam continues for 5 km or more, or when there is a closed road (step S103), the following detour processing is performed. When the position of the host vehicle is 2 km before traffic jam / regulation (step S104), detour calculation is started for a section 500m before the traffic jam / regulation failure position (step S105). When it is 1 km before traffic jam / regulation, guidance / display of a detour obtained by detour calculation is performed (step S106). The guidance displays the detour on the display 51 together with a voice guidance that “a detour has been found”. When no detour is found in the detour calculation, the user is informed that there is no detour by voice. When the vehicle starts traveling along the detour (step S107), the detour guide guidance is performed with the detour guidance display remaining, and the other detour displays are erased (step S108). Guidance of detours when the vehicle has passed all the detour starting points without traveling along the detour (step S109) and when the vehicle has returned to the original road (step S110). The operation is terminated.
[0022]
Next, detour calculation in step S105 will be described. In accordance with the detour control program 63, the control unit 80 performs detour calculation for all connection paths existing in the section 500 m before traffic jam / regulation. The destination of the detour, that is, the return point (return point) to the original road is set as the end point of the detour-recoverable section. As will be described later, the detour-returnable section refers to a point from a traffic jam / regulation point to a point where the traffic jam / regulation is eliminated, and in this example, a point 10 km away from the point where the traffic jam / regulation is eliminated. Let (link) be a detourable section. Routes to be searched include highways such as national roads and prefectural roads, as well as narrow streets (roads with a road width of 3.3 m or more and 5.5 m or less) that are not targeted when searching for routes to normal destinations. Explore. When the detour is calculated, if the road that has been passed once is passed twice, it is determined as a dead end or a dead end and is not handled as a detour. In addition, do not handle entry-prohibited roads such as one-way streets as detours.
[0023]
In the detour calculation, as shown in FIG. 3, the link cost of the road where the traffic jam / regulation 200 exists in front of the host vehicle position 220 is extremely high, while the link cost of the detour-recoverable section 210 is low. By doing so, search for detours that do not pass through traffic jams and regulations. As a result, a plurality of detours 230, 240, 250 in the detour-recoverable section 210 are searched from the connection path (one place in FIG. 3) between the vehicle position 220 and the traffic jam / restriction 200.
[0024]
When a plurality of detours are searched for by detour calculation, priority is given to them. First, priorities are assigned in descending order of the link cost of detours not including narrow streets. The detour including the narrow street does not compare the link cost, and increases the priority of the one with the smaller number of links in the narrow street included in the detour. When the number of links is the same, the lengths of the narrow street sections are compared, and the priority of the shorter narrow street section is increased. For a detour including a narrow street, a message to that effect is displayed.
[0025]
FIG. 4 shows a display example of the detour. The display 51 displays two screens: a map screen 310 that displays the vicinity of the vehicle position, and a detour display screen 320 that bypasses traffic jams and regulations. The detour display screen 320 includes a rough road 330 on which the vehicle is currently traveling, a traffic jam / restriction display 340 indicating information on traffic jams and regulations occurring ahead of the vehicle, a vehicle mark 350, and traffic jams / regulations. And a detour display 360 for all connecting paths between.
[0026]
The bypass display 360 includes several display patterns. As described above, among the plurality of detours, the one with the lowest link cost is set as the first priority detour, and the next with the lowest link cost is set as the second priority detour, and these are color-coded and displayed. In this example, for the sake of easy understanding, the first bypass 362 and the second bypass 364 are displayed by different hatching. In addition, “○” is displayed when the detour does not pass through the narrow street, “□” is displayed when it passes through the narrow street, and the road that can be detour is long and the road that cannot be short is displayed short. In this connection path, “x” or entry prohibition is displayed.
[0027]
FIG. 5 is an enlarged view of the main part of the map screen 310. Based on the VICS level 3 information, a traffic jam / restriction display 340 is synthesized and displayed on the map at a point where the traffic jam or regulation occurs. Between the vehicle position mark 350 and the traffic jam / restriction display 340, first and second priority detours 362 and 364 are displayed. In the figure, reference numeral 370 denotes a bag path, 380 denotes a dead end, and these connection paths are indicated by “x” on the detour screen 320 (see FIG. 4).
[0028]
Returning to the flow in FIG. 2 again, when the vehicle starts traveling along one of the detours, the detour is guided and the display of the other detours is deleted. In the guidance of the detour, the guidance for the intersection information and the route direction is performed in the same manner as when the route is guided by setting a normal destination. During the detour guidance, the vehicle position mark is updated and displayed as needed, and when it is determined that the vehicle has arrived at the destination or destination, guidance is given to return to the original road.
[0029]
Further, when traffic jams have already occurred during non-guidance, detour calculation is forcibly performed by voice input from the user or remote control operation (step S112).
[0030]
2. When there is no traffic jam / regulation information from VICS while driving on a general road
Although there is no VICS information, traffic congestion / regulation has occurred in the immediate vicinity, and when detouring this, guidance for the detour is performed according to the operation flow shown in FIG. Upon receiving a voice command from the user, the control unit 80 activates the detour control program 64 (step S201). Next, calculation of a detour is started (step S202). The section to be detoured is set as follows. Regardless of the vehicle speed, the next intersection node on the currently traveling road is used as the starting point. If the distance to the next intersection is within 10 m, the further intersection node is set as the starting point (steps S203, S204, S205). The detour return point is determined according to the user's voice command as described later (step S206). Then, a search for a detour is performed (step S207), and the detour is guided and displayed (step S208). The guidance / display of the detour is the same as in FIGS. 2 to 5 described above.
[0031]
According to the voice command from the user, the detour section is determined as follows.
a) Detour
When the user inputs a voice command of “detour around”, only the link 400 next to the vehicle position 420 is detoured as shown in FIG. The link cost of the link 400 to be detoured is extremely increased, and the link cost of the detour-recoverable section 410 starting from the next intersection node of the link 400 is decreased. The detour-recoverable section 410 is, for example, a link end 10 km ahead along the road. As a result, a plurality of detours 430, 440, and 450 are searched in the detour return-capable section 410.
[0032]
b) 1km detour
When the user inputs a voice command “1 km detour”, as shown in FIG. 8, the user detours the link 500 from the next intersection node of the vehicle position 520 to 1 km away. The link cost of the link 500 to be detoured is set extremely high, and the link cost of the detour-recoverable section 510 that terminates with a link 10 km ahead from the next intersection node is lowered, thereby detours 530, 540 550 is searched.
c) In addition to the above, upon receiving the distance information from the user, such as 2-km detour, 3-km detour, 4-km detour, and 10-km detour, a detour section corresponding to this is set.
[0033]
In addition, although there is no VICS information, when detouring the area such as the current municipality large character, etc., the detour is guided according to the operation flow of FIG. Here, an example will be described in which a large character level that can be managed as the smallest polygon data is bypassed in the municipality large character level. In each region, the date and time when festivals and events are held is often known in advance, and traffic jams and regulations are expected in such places. For this reason, smooth travel can be performed by bypassing a place where traffic congestion / regulation is expected (in this case, a large character level).
[0034]
First, as a voice command from the user, for example, “Oow-Owl” is input (step S301), the detour control program 63 is started by the control unit 80, and detour calculation is started (step S302). As shown in FIG. 10, when the position of the host vehicle 610 on the currently traveling road 600 is a large character A, the adjacent large character B is detoured from the branch point 620 of the large character A, and the next large character C Return to the road 600. The cost is extremely increased by using the link 630 of the large letter B as a bypass section, and the cost is extremely decreased by using the link 640 of the large letter C as a detour returnable section. As a result, the return point of the detour 650 is set to the large letter C. However, when the detour return possible section is less than 5 km, the calculation is performed by further including the next large letter in the detour return possible section.
[0035]
Guidance and display of the detour searched by detour calculation is performed (steps S303 and S303), and when there are a plurality of detours, the first and second priority detours are identified as in FIG. This is displayed when a narrow street is included in the detour (marked with □), and is also displayed when traffic is closed or entry is prohibited. Further, the guidance for the detour is performed in the same manner as in FIG.
[0036]
3. When there is traffic jam / regulation information from VICS while driving on expressway
A section with a highway may be closed due to an accident. In the case of guidance, a detour is automatically calculated, but in the present invention, a detour is calculated even during non-guidance. In the detour calculation, by setting the return point (point) of the detour to an IC (interchange) in which the restriction has been eliminated, the detour calculation up to that point can be performed.
[0037]
a) When traffic information from VICS is found at the end of the next IC exit:
As shown in FIG. 11, when a heavy traffic congestion S having a length of 20 km, for example, is generated at the tip of the next IC 720 on the highway on which the host vehicle 700 is traveling, judgment by the user is necessary. Do not automatically activate the detour guide function. That is, since the vehicle is not being guided, it is not known whether or not the vehicle gets off at IC710. In this case, guidance of a detour is performed when there is a request by a voice command from the user.
b) When regulatory information from VICS is found at the end of the next IC exit:
After the vehicle 700 passes the IC 710, when it is detected that the traffic stop S has occurred before the next IC 720, and when the traffic is notified from the VICS until the IC 730, the detour is automatically set. Start the guidance operation. However, when there is a junction (JCT) in front of the next IC 720 from the vehicle position 700, or when there is a JCT ahead of the IC 720, the user's judgment is necessary, so the detour guidance is not automatically activated. In this case as well, the detour is guided when there is a request by a voice command from the user.
[0038]
The detour section extends from the next IC exit to the next IC entrance. In the example shown in FIG. 11, IC 720 to IC 730 is a detour section. However, in the case where information on closing such as on-ramp regulation is generated at the entrance of the IC 730, the further IC 740 is a detour section.
[0039]
In the calculation of the detour, five routes are calculated and the result is displayed on the screen. FIG. 12 shows an example of the calculation result. The five routes include a recommended route 800, a general route 810, a short-distance route 820, a main route 830, and another route 840, and the distance, required time, and fee of each route are displayed. For the recommended route 800, a detour that is considered to be the most reasonable in terms of distance, required time, and fee is selected, and this recommended route is displayed on the map screen as a detour 750 (see FIG. 11). When the user selects a route other than the recommended route, the route is displayed on the map screen as a detour. The general route is a route that includes most of the detours, the short route is the route with the shortest distance, and the main route is a route that does not include narrow streets, a route by a prefectural road, The route is the next recommended route when the recommended route is denied.
[0040]
When the detour is displayed, at the same time, a guidance is given to the effect that the detour has been found by voice. When the vehicle starts to travel along the detour, guidance along the detour is automatically performed, and guidance is automatically provided at the point where the vehicle reaches the entrance of the expressway (return point). Is terminated.
[0041]
4). When there is no traffic jam / regulation information from VICS while driving on expressway
In this case, for example, when “OKI” is input as the user's voice command, the bypass control program 63 is activated by the control unit 80. In addition, as described above, a voice command is similarly input when there is VICS information and guidance for a detour is requested based on user judgment.
[0042]
When detour guidance is activated, a detour section from the next IC to the next IC is set as a detour section, and a detour detouring the section is displayed. In the calculation of the detour, five routes are searched and displayed as in the case of FIG. When there is no obstacle ahead of the expressway, it is less effective to exit the expressway and return to the expressway again, but the decision is left to the user.
[0043]
In addition, as described above, when there is a JCT before the next IC from the position of the vehicle, or when there is a JCT ahead of the next IC, the JCT is displayed on the screen or notified by voice. And let the user select by voice. For example, as shown in FIG. 13, when a traffic stop S occurs between the IC 910 and the IC 920 next to the vehicle position 900, and there is a JCT between the IC 910 and the traffic stop S, the user can move between the highways 911 and 912. Have them choose which to go. When the highway 911 is selected, the ICs 910 and 920 are set as a detour section, and a detour search / guidance is performed.
[0044]
The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims. Deformation / change is possible.
[0045]
【The invention's effect】
According to the present invention, when a traffic obstacle such as traffic jam or regulation is found in front of the driving road during non-guidance, it automatically searches for and guides a detour that bypasses it. The user can receive guidance on the detour without performing complicated operations during driving. Also, even during non-guidance, it is very convenient because the detour is searched immediately in response to a request from the user.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a navigation device according to an embodiment of the present invention.
FIG. 2 is a diagram showing a flow of detour guidance operation according to the present embodiment.
FIG. 3 is a diagram illustrating a method for calculating a detour.
FIG. 4 is a diagram illustrating a display example of a detour.
5 is a partially enlarged view of the map screen shown in FIG.
FIG. 6 is a diagram showing a flow of a detour guidance operation when there is no VICS information.
7 is a diagram for explaining a detour calculation method in the operation flow of FIG. 6;
8 is a diagram for explaining a detour calculation method in the operation flow of FIG. 6;
FIG. 9 is a diagram showing an operation flow for bypassing large letters when there is no VICS information.
10 is a diagram illustrating a method for calculating a detour in the operation flow of FIG.
FIG. 11 is a diagram for explaining guidance of a detour on a highway.
FIG. 12 is a diagram showing an example of calculation and display of a detour on a highway.
FIG. 13 is a diagram for explaining guidance of a detour by the user's selection on the highway.
FIG. 14 is a diagram showing a screen display example during conventional non-guidance.
[Explanation of symbols]
1: navigation device, 10: GPS receiver, 11: autonomous navigation sensor,
12: VICS / FM multiplex receiver, 20: operation panel, 21: voice input unit,
22: remote control, 23: input IF, 30: storage unit, 31: communication control unit,
40: Audio output unit, 41: Speaker, 50: Display control unit, 51: Display,
60: Program memory, 70: Data memory, 80: Control unit,
320: detour display screen, 330: rough road, 340: traffic jam / regulation display,
360: Detour display

Claims (12)

A navigation device having a guidance function for searching for a route to a destination and performing guidance to the destination according to the searched route,
Position detecting means for detecting the position of the vehicle and outputting position detection information;
Road traffic information receiving means for receiving road traffic information sent from outside;
Display means for displaying a vehicle and a surrounding map of the vehicle based on the position detection information;
In the state where the guidance function is turned off, when there is a traffic fault on the road on which the vehicle is traveling based on the road traffic information, a bypass that bypasses the traffic injury is searched, and the bypass the display on the display means, possess a bypass circuit control unit,
The detour control means further determines whether or not the vehicle has started traveling on the detour, starts guidance guidance on the detour when the vehicle starts traveling on the detour, and the vehicle returns to the original road A navigation device that terminates the guidance for detours . The navigation device according to claim 1, wherein the navigation device includes voice output means, and the bypass control means provides voice guidance by the voice output means that the bypass has been found. The bypass control means, e given the vehicle was the display a plurality of detour paths included in the road running to the point where the traffic disturbance has occurred, and identification of priority in a plurality of detour 3. The navigation device according to claim 1 , wherein the detour control unit further terminates the detour guidance when the vehicle passes all starting points of a plurality of detours . The navigation device according to any one of claims 1 to 3, wherein, when the detour includes a narrow street, the detour control unit displays the fact. 4. The detour control unit according to any one of claims 1 to 3, wherein the detour control means displays the fact on a connection path that cannot be a detour among connection paths connected to a road in front of which a traffic fault has occurred. Navigation device. A navigation device having a guidance function for searching for a route to a destination and performing guidance to the destination according to the searched route,
Position detecting means for detecting the position of the vehicle and outputting position detection information;
An input means for receiving input of information indicating a detour section from a user;
Display means for displaying a vehicle and a surrounding map of the vehicle based on the position detection information;
In a state where the guidance function is turned off, a detour that detours a predetermined detour section on the road on which the vehicle is traveling is searched based on information indicating the detour section from the input means, and the detour is displayed in the display is displayed on the unit, possess a bypass circuit control unit,
The detour control means determines the detour section according to information indicating the detour section from the input means, searches for a detour that bypasses the detour section,
The detour control means further determines whether or not the vehicle has started traveling on the detour, starts guidance guidance on the detour when the vehicle starts traveling on the detour, and the vehicle returns to the original road A navigation device that terminates the guidance for detours . The navigation apparatus according to claim 6 , wherein distance information is input as information indicating the detour section from the input unit. The navigation apparatus according to claim 6 , wherein municipal information is input as information indicating the detour section from the input means. A method for guiding a detour during non-guidance of a navigation device having a guidance function for searching for a route to a destination and performing guidance to the destination according to the searched route,
Based on road traffic information from the outside, when there is a traffic obstacle on the road that is currently running, search for a detour to bypass the traffic obstacle,
When a detour is found, the detour is displayed on the display,
Next, determine whether the vehicle has begun to detour,
When you start traveling on the detour, start guidance for the detour,
When the vehicle returns to the original road, the guidance for the detour is terminated and returned to non-guidance.
Detour guide method during non-guidance. The detour guide method according to claim 9 , wherein the detour includes a plurality of detours, and respective priorities are guided together. A method for guiding a detour during non-guidance of a navigation device having a guidance function for searching for a route to a destination and performing guidance to the destination according to the searched route,
In response to information from the user indicating the detour section,
Determining the bypass section according to the information indicating the bypass section,
Find the detour to bypass the bypass section,
When a detour is found, the detour is displayed on the display,
Next, determine whether the vehicle has begun to detour,
When you start traveling on the detour, start guidance for the detour,
When the vehicle returns to the original road, the guidance for the detour is terminated and returned to non-guidance.
Detour guide method during non-guidance. The detour route guidance method according to claim 11 , wherein the information indicating the detour section of the user includes distance information or city information.

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