JP2005069857A - Navigation method and navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation method and a navigation system capable of easily setting the staying time and departure time of passing spots. <P>SOLUTION: An on-vehicle apparatus 100 automatically sets the previously stored staying time as the staying time at the passing spot according to the classification of the inputted passing spot when the passing spot is inputted by a user. In the case of accommodations or the like, the previously stored departure time can be automatically set as the departure time of the accommodations instead of the staying time. The passing time of each route which is a candidate of a recommended route, is computed on the basis of average speed determined beforehand for every road classification, and information such as traffic congestion information received by a receiving device 130, in addition to the staying conditions at the passing spot. Based on the computed passing time, an appropriate route is computed as the recommended route while avoiding traffic restrictions such as the presence of one-way traffic, traffic stop, or the like depending on a time zone. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a navigation method and a navigation apparatus for guiding a route based on a calculated recommended route.

  2. Description of the Related Art A car navigation device that calculates a recommended route from a vehicle position based on an input waypoint or destination and guides the route is known. In this car navigation device, by setting the staying time and departure time at the waypoint before the start of route guidance, it is possible to display the accurate estimated arrival time at the waypoint and the destination (see Patent Document 1).

JP 2001-116578 A

  However, in the conventional navigation apparatus, since the user has to input the stay time and departure time at the waypoint, the operation is troublesome.

(1) The navigation method according to the invention of claim 1 determines the type of the input waypoint, and determines the stay time at the waypoint or the departure time of the waypoint based on the determined type of the waypoint. The recommended route from the detected current position to the input destination via the waypoint is calculated in consideration of at least the determined stay time or departure time.
(2) In this navigation method, the estimated arrival time at the waypoint and the destination may be calculated based on the determined stay time or departure time and displayed on the screen.
(3) In addition, when the change screen of the determined stay time or departure time is displayed and the determined stay time or departure time is changed, at least the changed stay time or departure time is taken into account It is preferable to recalculate the recommended route from the position to the destination via the waypoint.
(4) Furthermore, when the stay time or departure time determined after starting the route guidance is changed, at least when the stay time or departure time is changed, taking into account the changed stay time or departure time. The recommended route from the detected current position to the destination may be recalculated.
(5) The navigation device according to the invention of claim 5 is a current position detecting means for detecting the current position, an input means for inputting a waypoint and a destination, and a route for judging the type of the waypoint inputted from the input means. Based on the location type determining means, the time determining means for determining the stay time at the waypoint or the departure time of the waypoint based on the type of the waypoint determined by the waypoint type determining means, and at least the time determining means The calculation means to calculate the recommended route from the detected current position to the destination entered via the waypoint, and the recommended route calculated by the calculation means together with the road map And display means for displaying and guiding the route.
(6) The navigation device further includes arrival time calculation means for calculating an expected arrival time at the waypoint and the destination based on the stay time or departure time determined by the time determination means, and the display means The estimated arrival time at the waypoint and the destination calculated by the time calculation means may be displayed.
(7) When the change screen of the determined stay time and departure time is displayed on the display means and the change of the stay time or departure time determined from the input means is input, at least the changed stay time or In consideration of the departure time, it is preferable that the recommended route from the detected current position to the destination via the waypoint is recalculated by the calculation means.
(8) Furthermore, when a change in the determined stay time or departure time is input after the route guidance is started, the stay time or departure time is changed in consideration of at least the changed stay time or departure time. The recommended route from the current position at the time point to the destination may be recalculated by the calculation means.

  According to the first and fifth aspects of the present invention, the type of the input waypoint is determined, the staying time at the waypoint or the departure time of the waypoint is determined, and the determined stay time or departure time is taken into account. Then, the recommended route from the current position to the destination input via the waypoint is calculated. Thereby, since the waypoint stay condition can be set without bothering the user, the convenience is high. In addition, it is possible to accurately calculate the required time to the waypoint and the destination, and to avoid a route that is restricted in traffic according to the time zone, so that an appropriate recommended route can be provided.

  1 to 11, an embodiment in which the present invention is applied to a vehicle-mounted navigation device will be described. FIG. 1 is a system block diagram showing a configuration of a car navigation device (hereinafter referred to as an in-vehicle device 100) of the present embodiment. The in-vehicle device 100 has a function of displaying a road map around the vehicle position, a function of calculating a recommended route from the departure place to the destination, a function of performing route guidance based on the calculated recommended route, and the like. It is a device that performs so-called navigation or road guidance.

  In FIG. 1, reference numeral 111 denotes a current position detection device that detects the current position (vehicle position) of a vehicle. For example, a direction sensor 111 a that detects the traveling direction of the vehicle, a vehicle speed sensor 111 b that detects a vehicle speed, and a GPS signal from a GPS satellite. It includes a GPS sensor 111c for detecting, a gyro sensor 111d for detecting a change in the traveling direction of the vehicle, and the like. Reference numeral 112 denotes a map storage unit for storing various data to be described later, such as map display data and route search data. These various data are read from a DVD-ROM 113 which is a recording medium. The recording medium is not limited to a DVD-ROM, and may be any recording medium such as a magnetic tape, a CD-ROM, a hard disk, or the like. A control circuit 114 controls the entire apparatus and includes a microprocessor and its peripheral circuits. The control circuit 114 executes a control program stored in the ROM 116 using the RAM 115 as a work area to perform various controls described later.

  Reference numeral 117 denotes an input device having switches for inputting a destination of a vehicle, a waypoint, and the like or inputting various operations. The input device 117 also includes a touch panel provided on the display monitor 119. Reference numeral 118 denotes an image memory for storing image data to be displayed on the display monitor 119. This image data is created from road map drawing data and various graphic data. The image data stored in the image memory 118 is read as appropriate and displayed on the display monitor 119. The display monitor 119 displays route information, guidance information, and the like together with a road map. Reference numeral 120 denotes a speaker for notifying guidance information and the like by voice.

  The in-vehicle device 100 is connected to a receiving device 130 for receiving various traffic information such as traffic information distributed from the outside such as a traffic information center.

  The vehicle-mounted device 100 configured as described above performs various navigations based on the vehicle position information acquired by the current location detection device 111 and the map information stored in the map storage unit 112. For example, a road map in the vicinity of the vehicle position and the vehicle position are displayed on the display monitor 119, and the driver is guided along the route obtained by the route search. The in-vehicle device 100 uses various traffic information received by the receiving device 130 as a condition for route search. Further, as will be described later, the in-vehicle device 100 automatically sets the staying time and departure time at the waypoint before the route search. Details will be described below.

――― About automatic setting of transit time and departure time ―――
When the transit point is input by the user, the in-vehicle device 100 automatically sets the stay time stored in advance as the stay time at the transit point according to the type of the input transit point. As will be described later, in the case of an accommodation facility or the like, the departure time stored in advance can be automatically set as the departure time of the accommodation facility or the like instead of the staying time. A plurality of waypoints can be set.

  An example of the stay time and departure time at the waypoint automatically set by the in-vehicle device 100 is shown in FIG. For accommodation facilities and the like, both the staying time and the departure time are stored in advance as staying conditions at the waypoints. For a category in which both the stay time and the departure time are stored in advance, such as an accommodation facility, either the stay time or the departure time is automatically set as a stay condition at the waypoint. Whether the stay time or the departure time is automatically set as the stay condition at the waypoint can be set from a setting screen (not shown).

  The user can specify the departure time for a transit point where the stay time greatly varies depending on the situation, such as a meeting place, each tourist facility, and a restaurant. Also, the stay time and departure time of the accommodation facility can be specified by the user.

――― Operation of in-vehicle device 100 ―――
With reference to the screen transition of the display monitor 119, the operation of the in-vehicle device 100 will be described. When the destination and the waypoint are input, the calculation condition setting screen 10 is displayed on the display monitor 119 as shown in FIG. On the calculation condition setting screen 10, a display 11 and a determination button 12 are displayed to take into account the transit time. The display screen 10 is provided with a check box 11a. When the check box 11a is checked by the input device 117 and the determination button 12 is pressed, the stay time and the departure time of the waypoint (hereinafter referred to as the waypoint stay condition) are added to the conditions for the recommended route search. When the determination button 12 is pressed without checking the check box 11a, the waypoint stay condition does not enter the recommended route search condition.

  When the check box 11a of the display screen 10 shown in FIG. 3 is checked and the determination button 12 is pressed, the waypoint stay condition is automatically set according to the waypoint type. As shown in FIG. 2, the set value of the waypoint stay condition is a waypoint stay condition stored in advance. When the waypoint stay conditions are automatically set, a destination list 20 indicating the waypoint stay conditions for each waypoint is displayed on the display monitor 119 as shown in FIG. The destination list 20 is provided with waypoint display fields 21 and 22, a destination display field 23, a decision button 25, and a change button 26.

  The waypoint display fields 21 and 22 display the name of each waypoint and the waypoint stay conditions. In the destination display field 23, the name of the destination is displayed. When the determination button 25 is pressed, the recommended route calculation is started based on the waypoint stay conditions displayed in the destination list 20. When the change button 26 is pressed, as shown in FIG. 5, the waypoint stay condition displays 21a, 22a, and 22b displayed in the waypoint display fields 21 and 22 can be changed. For a category in which both the stay time and the departure time are stored in advance as a waypoint stay condition such as an accommodation facility, the departure time (display 22a) and the stay time (display 22b) are displayed and changed. It becomes possible. When the contents of the waypoint stay condition displays 21a, 22a, and 22b are changed by the input device 117 and the determination button 12 is pressed, the recommended route calculation is started based on the changed waypoint stay condition.

  In calculating the recommended route, in addition to the above-mentioned waypoint stay conditions, the recommended route candidate is based on the average hourly speed predetermined for each road type, information received by the receiving device 130 such as traffic jam information, and the like. The passage time of each route is calculated. Then, based on the calculated passage time, an appropriate route is calculated as a recommended route while avoiding traffic restrictions such as the presence or absence of one-way traffic and the closure of traffic according to the time zone.

  When the recommended route is calculated, as shown in FIG. 6, the display monitor 119 displays a display 30 indicating that the stopover condition is taken into consideration along with a detailed map near the vehicle position. Then, as shown in FIG. 7A, the route guidance screen 40 is displayed on the display monitor 119. On the route guidance screen 40 showing the vicinity of the departure place, the own vehicle position mark 1, the recommended route 2, the departure place mark 3, and the menu button 45 are superimposed on the detailed map near the own vehicle position.

  The route guidance screen 40 alternately displays a destination arrival time display field 41 and a waypoint arrival time display field 42 shown in FIG. 7B at regular intervals. When there are a plurality of set waypoints, the waypoint arrival time display column 42 for each waypoint is also displayed at regular intervals in the order of the recommended route. In the destination arrival time display field 41 and the waypoint arrival time display field 42, the destination and the estimated arrival time at each waypoint are displayed.

  The estimated arrival time at each waypoint or destination is based on the information received by the receiving device 130 such as the above-mentioned staying conditions at the waypoint, the driving state of the vehicle, the average speed determined in advance for each road type, and the estimated time for passing traffic. It is constantly calculated and updated based on it.

  When the menu button 45 displayed on the route guidance screen 40 is pressed, a setting menu 50 for performing various settings is displayed as shown in FIG. When the transit point stay time change button 51 of the setting menu 50 is pressed, the destination list 20 shown in FIG. 4 is displayed on the display monitor 119. When the change button 26 of the destination list 20 is pressed, the waypoint stay condition can be changed as described above. When the waypoint stay condition is changed during route guidance, the in-vehicle device 100 recalculates the arrival time at each waypoint or destination based on the changed contents.

  As a result of recalculating the arrival time at each waypoint or destination, the original recommended route may be inconvenient. For example, there is a route that is restricted by the time zone on the recommended route, and as a result of recalculating the arrival time at each waypoint or destination, it is determined that the expected passage time of the route falls within the restricted time zone This is the case. In this case, the recommended route is recalculated so as to detour the route in consideration of the recalculated arrival time at each waypoint or destination.

If it is determined that the vehicle-mounted device 100 is in the following state during route guidance for reasons other than the above, the recommended route is recalculated.
(1) When an instruction to recalculate the recommended route is input by the user (2) When the vehicle position deviates from the recommended route (3) From the traffic jam information and the traffic stop information received by the receiving device 130 after the route calculation, When it is determined that the current recommended route is not appropriate.
(4) There is a route that is restricted in traffic according to the time zone on the current recommended route. Initially, the expected passage time of the route was not a time zone in which traffic was restricted. When it is determined that the expected passage time of the route falls within the restricted time zone.

  When the vehicle arrives at a transit point arrival determination range, which will be described later, the fact that the vehicle has arrived at the transit point and the transit point stay condition are notified by voice from the speaker 120. Then, as shown in FIG. 9, the waypoint arrival display 60 is superimposed on the route guidance screen 40. Reference numeral 4 denotes a waypoint mark representing the waypoint. The transit point arrival determination range is an area within a predetermined range from a point set as a transit point or a point representing a store / facility set as a transit point. Note that the distance representing the predetermined range (arrival determination distance) differs depending on the type of waypoint. For example, the arrival determination distance is short if the small store is a transit point, and the arrival determination distance is long if the facility is large.

  The waypoint arrival display 60 displays a waypoint stay condition display 61 for displaying a stay time at the waypoint, time selection buttons 62a to 62e for changing the waypoint stay condition, and a cancel button 62f. Is. When any one of the time selection buttons 62a to 62e is pressed after the cancel button 62f is pressed, the waypoint stay condition at the waypoint that has arrived corresponds to any of the pressed time selection buttons 62a to 62e. Change to time. When the waypoint stay condition is changed, the arrival time at the waypoint and the destination after the waypoint that arrived is recalculated as described above.

  When the vehicle arrives at the destination, as shown in FIG. 10, a display 70 indicating that the vehicle has arrived at the destination is displayed at the bottom of the route guidance screen 40. On the route guidance screen 40 showing the vicinity of the destination, the vehicle position mark 1, the recommended route 2, and the destination mark 5 are superimposed and displayed on the detailed map near the vehicle position.

---flowchart---
11 and 12 are flowcharts showing the operation of the in-vehicle device 100. When the accessory key is turned on by the ignition key (ACC ON), the vehicle-mounted device 100 is turned on and a program for performing the navigation process shown in FIG. 11 is started. In step S1, it waits until it detects the current position (vehicle position) of the vehicle. If a positive determination is made in step S1, the process proceeds to step S3. In step S3, the process waits until the destination is input. If an affirmative determination is made in step S3, the process proceeds to step S5, and it is determined whether or not a waypoint is set.

  When the waypoint is input and the determination in step S5 is affirmative, the process proceeds to step S7, and the calculation condition setting screen shown in FIG. And it is judged whether it was instruct | indicated that the transit place stay time was considered. That is, it is determined whether or not the check box 10a displayed on the display screen 119, which is displayed on the display monitor 119 to the effect of considering the transit time, is checked and the decision button 11 is pressed. If an affirmative determination is made in step S7, the process proceeds to step S9 and waits until the waypoint stay condition at the waypoint input in step S5 is set.

  In step S9, the waypoint stay conditions shown in FIG. 2 are automatically set for each waypoint according to the type of the waypoint input in step S5. Then, the destination list 20 is displayed on the display monitor 119 as shown in FIG. Here, when the change button 26 is pressed, as shown in FIG. 5, the waypoint stay condition displays 21a and 22a displayed in the waypoint display fields 21 and 22 can be changed. When the contents of the waypoint stay condition displays 21a and 22a are changed by the input device 117 and the determination button 12 is pressed, the waypoint stay condition is set with the changed contents and the process proceeds to step S11.

  In step S11, the recommended route is calculated by a well-known method by adding the waypoint stay condition at the waypoint set in step S9 to the calculation condition. In the recommended route calculation in step S11, as described above, the recommended route is based on the average hourly speed determined for each road type, information received by the receiving device 130 such as traffic jam information, in addition to the waypoint stay condition. The passage time of each route that is a candidate is calculated. Then, based on the calculated passage time, an appropriate route is calculated as a recommended route while avoiding traffic restrictions such as the presence or absence of one-way traffic and the closure of traffic according to the time zone.

  In step S13, the display screens shown in FIGS. 6 and 7A are displayed on the display monitor 119, route guidance is started according to the recommended route calculated in step S11, and the process proceeds to step S15. In step S15, the route guidance is performed according to the recommended route calculated in step S11 in consideration of information received by the receiving device 130 such as traffic jam information. The arrival time at each waypoint or destination is always calculated as described above and displayed in the destination arrival time display field 41 and the waypoint arrival time display field 42 (FIGS. 7A and 7B). ).

  In step S17, it is determined whether recalculation of the recommended route is necessary. The case where the recalculation of the recommended route is necessary is the case described above, for example, when it is determined that the current recommended route is not appropriate based on the traffic jam information and the traffic stop information received by the receiving device 130. If a positive determination is made in step S17, the process returns to step S11. If a negative determination is made in step S17, the process proceeds to step S31.

  In step S31, it is determined whether or not the destination has been reached. If a positive determination is made in step S31, the program is terminated. If a negative determination is made in step S31, the process proceeds to step S33 in FIG. 12, and it is determined whether or not the arrival determination range of the waypoint is reached. If an affirmative determination is made in step S33, the process proceeds to step S35, and a display screen (not shown) is displayed on the display monitor 119 to ask the user whether to start guidance toward the next waypoint or destination. Determine whether to resume guidance. If a negative determination is made in step S35, the process proceeds to step S37, and the stay time or departure time at the waypoint determined to have arrived in step S33 is notified by voice from the speaker 120, and the process proceeds to step S39. In step S39, as shown in FIG. 9, the waypoint arrival display 60 is displayed on the display monitor 119, and the process proceeds to step S41.

  In step S41, it is determined whether or not the waypoint stay condition is changed. When an affirmative determination is made in step S41, the process proceeds to step S43, and the required time (arrival time) to each waypoint and destination is recalculated based on the waypoint stay conditions changed in step S41.

  If step S43 is executed or a negative determination is made in step S41, the process returns to step S15 in FIG.

  If an affirmative determination is made in step S35, the process proceeds to step S47, the departure time of the waypoint determined to have arrived in step S33 is changed to the current time, and the process proceeds to step S43.

  If a negative determination is made in step S33, the process proceeds to step S45, and it is determined whether or not the menu button 45 shown in FIG. If a positive determination is made in step S47, the process proceeds to step S49, the setting menu 50 shown in FIG. 8 is displayed on the display monitor 119, and the process proceeds to step S39. If a negative determination is made in step S47, the process returns to step S15 in FIG.

  If a negative determination is made in step S7, the process proceeds to step S21, the recommended route is calculated by a well-known method without considering the waypoint stay condition, and the process proceeds to step S23. In step S23, route guidance is started according to the recommended route calculated in step S21, and the process proceeds to step S25. In step S25, the route guidance is performed according to the recommended route calculated in step S21, taking into account external information received by the receiving device 130 such as traffic jam information. The arrival time at each waypoint or destination is calculated with the stay time at each waypoint being 0 minutes and displayed on the display monitor 119 (FIGS. 7A and 7B).

  In step S27, it is determined whether recalculation of the recommended route is necessary. The case where the recalculation of the recommended route is necessary is the same as the case of step S17 described above. If a positive determination is made in step S27, the process returns to step S21. If a negative determination is made in step S27, the process proceeds to step S29 to determine whether or not the destination has been reached. If an affirmative decision is made in step S29, the program is terminated. If a negative determination is made in step S29, the process returns to step S25.

  In step S5, if no waypoint is input and a negative determination is made in step S5, the process proceeds to step S51, a recommended route to the destination is calculated by a well-known method, and the process proceeds to step S53. In step S53, route guidance is started according to the recommended route calculated in step S51, and the process proceeds to step S55. In step S55, route information is guided according to the recommended route calculated in step S51, taking into account external information received by the receiving device 130 such as traffic jam information. The arrival time at the destination is displayed on the display monitor 119 (FIG. 7A).

  In step S57, it is determined whether recalculation of the recommended route is necessary. The case where the recalculation of the recommended route is necessary is the same as the case of step S17 described above. If a positive determination is made in step S57, the process returns to step S51. If a negative determination is made in step S57, the process proceeds to step S59 to determine whether or not the destination has been reached. If a positive determination is made in step S59, the program is terminated. If a negative determination is made in step S59, the process returns to step S55.

The in-vehicle device 100 according to the present embodiment described above has the following operational effects.
(1) The stay time and departure time stored in advance are automatically set as the stay time and departure time of the waypoint according to the type of the waypoint that has been input. Thereby, since the waypoint stay condition can be set without bothering the user, the convenience is high.
(2) The stay time and departure time at the waypoint are automatically set and added to the recommended route calculation conditions. Thereby, since the required time to the waypoint and the destination can be accurately displayed, the user can easily make a travel plan and can move efficiently. In addition, since a route whose traffic is restricted depending on the time zone can be avoided, an appropriate recommended route can be provided.
(3) The user can change the stay time and departure time of the waypoint set automatically. Since the waypoint stay conditions that match the usage status of the user can be set, the required time to the waypoint and the destination can be displayed more accurately. Moreover, since the waypoint stay conditions set automatically are only changed, the operation is easy.
(4) You can change the waypoint stay conditions during route guidance. Thereby, even if the schedule is changed, an appropriate recommended route can be provided, which is highly convenient.

――― Modifications ――――
(1) In the flowchart shown in FIG. 11, it is possible to select whether or not to consider the stopover time by displaying the calculation condition setting screen 10 shown in FIG. 3 before the recommended route calculation (step S7). ). In addition, after the recommended route calculation, it is configured so that it is not possible to select whether or not to consider the transit time. However, the present invention is not limited to this. Even after the recommended route calculation, it may be possible to select whether or not to consider the transit time. For example, when the menu button 45 displayed on the display monitor 119 during route guidance is pressed, the calculation condition setting screen 10 shown in FIG. 3 is displayed to select whether or not to consider the transit time. You may do it. When a calculation condition different from the condition for the previous route calculation is instructed, the recommended route may be calculated under the newly instructed calculation condition.

(2) In the above description, the present invention has been described with the car navigation device 100 for in-vehicle use, but the present invention is not limited to the navigation device for in-vehicle use. For example, a portable navigation device in which a GPS receiver is connected to a portable information terminal may be used.
(3) You may combine embodiment and the modification which were mentioned above, respectively.

  In the above embodiments and modifications, for example, the current position detection means corresponds to the current position detection device 111, the input means corresponds to the input device 117, and the display means corresponds to the display monitor 119. The waypoint type determination means, time determination means, calculation means, and arrival time calculation means are realized by the control circuit 114 and a control program stored in the ROM 116 executed by the control circuit 114. Furthermore, as long as the characteristic functions of the present invention are not impaired, the present invention is not limited to the device configuration in the above-described embodiment.

It is a system block diagram showing the structure of the car navigation apparatus 100 of this Embodiment. It is a figure which shows the example of the stay time and departure time of the waypoint automatically set by the vehicle equipment. It is a figure which shows an example of the display screen of the display monitor. It is a figure which shows an example of the display screen of the display monitor. It is a figure which shows an example of the display screen of the display monitor. It is a figure which shows an example of the display screen of the display monitor. It is a figure which shows an example of the display screen of the display monitor. It is a figure which shows an example of the display screen of the display monitor. It is a figure which shows an example of the display screen of the display monitor. It is a figure which shows an example of the display screen of the display monitor. 5 is a flowchart showing the operation of the in-vehicle device 100. 12 is a flowchart illustrating an operation of the in-vehicle device 100 continued from FIG. 11.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Own vehicle position mark 2 Recommended route 3 Departure place mark 10 Display screen 20 Destination list 40 Route guidance screen 100 Vehicle-mounted apparatus 111 Present location detection apparatus 112 Map storage part 113 DVD-ROM
114 Control circuit 116 ROM
117 Input device 119 Display monitor 120 Speaker 130 Receiver

Claims (8)

Determine the type of the waypoint entered,
Based on the determined type of the waypoint, determine the stay time at the waypoint or the departure time of the waypoint,
A navigation method characterized in that a recommended route from a detected current position to a destination input via the waypoint is calculated in consideration of at least the determined stay time or the departure time. The navigation method according to claim 1,
A navigation method characterized in that the estimated arrival time at the waypoint and destination is calculated based on the determined stay time or the departure time and displayed on the screen. The navigation method according to claim 1 or 2,
Display a screen for changing the determined stay time or departure time,
When the determined stay time or departure time is changed, a recommended route from the current position to the destination via the waypoint is taken into account at least by the changed stay time or the departure time. A navigation method characterized by recalculation. The navigation method according to claim 3, wherein
When the determined stay time or departure time is changed after starting the route guidance, at least the changed stay time or departure time is taken into account and the current time detected when the stay time or departure time is changed A navigation method characterized by recalculating a recommended route from a position to the destination. Current position detecting means for detecting the current position;
An input means for inputting a stopover and a destination;
A waypoint type judging means for judging a kind of waypoint inputted from the input means;
Time determining means for determining a staying time at the waypoint or a departure time of the waypoint based on the type of the waypoint determined by the waypoint type determining means;
Calculation means for calculating a recommended route from the detected current position to the destination input via the waypoint, taking into account at least the stay time or the departure time determined by the time determination means,
A navigation device comprising: display means for displaying the recommended route calculated by the calculation means together with a road map to guide the route. The navigation device according to claim 5, wherein
An arrival time calculating means for calculating an expected arrival time at the waypoint and the destination based on the stay time or the departure time determined by the time determination means;
The navigation device according to claim 1, wherein the display means displays an estimated arrival time at the waypoint and destination calculated by the arrival time calculation means. The navigation device according to claim 5 or 6,
The display means displays a screen for changing the determined stay time and departure time,
When the change of the determined stay time or departure time is input from the input means, the calculation means takes into account the transit location from the detected current position, taking into account at least the changed stay time or departure time. A navigation device characterized by recalculating a recommended route to the destination via The navigation device according to claim 7,
When the change of the determined stay time or departure time is input from the input means after displaying the recommended route on the display means and starting route guidance on the display means, the calculation means is at least changed stay time or A navigation device characterized by recalculating a recommended route from the current position detected by the current position detection means to the destination when the stay time or the departure time is changed in consideration of the departure time.

Images