JP5611103B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation apparatus that guides a moving body along a guide route to a destination.

  In recent years, navigation devices can provide route guidance from door to door because of improved performance. However, in general route guidance, even when the driver deliberately deviates from the guidance route, the route instruction by voice or display is repeatedly performed. In this case, even if the driver feels stress in repeating the route instruction, it is difficult to change the guidance route during driving.

  As a conventional technique for solving such a problem, there is a navigation device disclosed in Patent Document 1, for example. This device has a pinpoint guidance mode and a normal guidance mode, and one of the modes can be selected when setting the destination. When the pin point guidance mode is selected, the route guidance is continued until the vehicle reaches a predetermined distance to the destination, and the route guidance ends when the vehicle position is within the predetermined distance to the destination.

  Therefore, when the driver wants to deviate from the guidance route around the destination when the destination is set, the pinpoint guidance mode is selected. When the driver wants to continue the route guidance until reaching the destination, the normal guidance mode is selected. Select. Thereby, in the vicinity of the destination, even if the driver intentionally deviates from the guidance route, the route instruction is not repeatedly performed.

JP 2008-58235 A

If the driver is familiar with the geography around the destination, such as route guidance when returning home, the guidance route is used to take a detour, a road without traffic jams, a road without a signal, or a back road around the destination. In many cases, the route to the destination itself is changed.
Even in this case, the conventional technique proposed in Patent Document 1 is limited to the guidance mode selected when setting the destination even if the driver frequently detours around the destination.
In other words, regardless of whether the pinpoint guidance mode or the normal guidance mode is set when setting the destination, if the driver departs from the guidance route at a point away from the predetermined distance to the home, the route instruction is issued. There was a problem that the above problem occurred repeatedly.

  The present invention has been made to solve the above-described problems. It is an object of the present invention to provide a navigation device capable of automatically canceling route guidance before a route instruction is repeated outside the guidance route. Objective.

A navigation device according to the present invention includes a position detection unit that detects a position of a moving body, a route guide unit that guides a route from the position of the moving body detected by the position detection unit to a destination, and a route based on a user instruction. A storage unit that stores, for each destination, the point information of the point where the guide unit canceled the route guidance, and a guidance end point at which the route guide unit ends the route guidance for each destination based on the point information stored in the storage unit. Whether or not the route guide unit has reached the guidance end point corresponding to the destination determined by the analysis unit based on the position of the mobile unit detected by the position detection unit. determines, eye if it is determined to have reached, ends the route guidance of the guidance end point later, the storage unit, from the point and the point at which the route guidance section based on the user's instruction has canceled route guidance The distance to the ground is stored as point information, and the analysis unit analyzes the point information stored in the storage unit, and based on the point from which the route guidance is canceled and the distance from the point to the destination, the guidance end point The route guidance unit determines whether the mobile unit is based on the comparison result between the distance from the position of the moving body detected by the position detection unit to the destination and the distance from the guidance end point determined by the analysis unit to the destination. When it is determined whether or not the guidance end point has been reached, and it is determined that the mobile body has reached the point corresponding to the maximum distance from the point where the route guidance stored in the storage unit is canceled to the destination , Announce that the route guidance will be canceled.

  According to the present invention, there is an effect that the route guidance can be automatically canceled before the route instruction is repeated outside the guidance route.

It is a figure which shows the outline | summary of the cancellation process of the route guidance which concerns on this invention. It is a block diagram which shows the structure of the navigation apparatus which concerns on Embodiment 1 of this invention. 4 is a flowchart showing route guidance processing by the navigation device according to the first embodiment. It is a figure which shows an example of the statistical data of the frequency which canceled | released route guidance before reaching the destination, and the distance to the destination. It is a figure which shows an example of the condition at the time of manual route cancellation | release, and the route guidance cancellation | release conditions based on this.

Embodiment 1 FIG.
FIG. 1 is a diagram showing an outline of route guidance cancellation processing according to the present invention, and shows a case where the driver sets a route familiar with geography, for example, route guidance for returning home. First, the driver sets the destination to return to his / her home, and after the announcement “The destination has been set. Route guidance starts.” The vehicle starts traveling along a guide route as indicated by a broken line in FIG. Here, when the driver returns to the vicinity of his / her home, the driver travels on a route (a route indicated by a triple line in FIG. 1) different from the guidance route of the navigation device, such as a route with few signals.
In this case, as shown in Fig. 1, with a conventional navigation device, if you drive away from the guidance route, "Please make a U-turn", "Search for a reroute", "Go straight at the next intersection", etc. The route instruction is repeated. A driver who is familiar with geography feels stressed by repeated route directions and seems to cancel the route guidance manually.

  The present invention is characterized in that the route guidance is automatically canceled before the driver starts traveling on a route different from the guidance route by collecting and analyzing the history of route guidance cancellation by the driver. In other words, as shown in Fig. 1, before leaving the route different from the navigation route of the navigation device (the route indicated by the triple line in Fig. 1), "We are 2km away from the destination. The route guidance will end." The route guidance is automatically canceled after the announcement. In this way, it is possible to drive the route desired by the driver without performing an operation of changing the guide route itself to the destination during driving and without repeating the route instruction.

FIG. 2 is a block diagram showing a configuration of a navigation device mounted on a mobile body (for example, a vehicle) according to Embodiment 1 of the present invention. In FIG. 2, the navigation apparatus 1 according to Embodiment 1 includes a host vehicle position detection unit 2, a road map data storage unit 3, a display unit 4, an input unit 5, a route guide unit 6, a travel history storage unit 7, and a guidance end. A point analysis unit 8 is provided.
The own vehicle position detecting unit 2 is a position detecting unit that detects the position of the moving body, and is a component that detects the own vehicle position by GPS (Global Positioning System) or the like. In addition, if this own vehicle position detection part 2 combines an acceleration sensor and various speed sensors other than the positional information from a GPS satellite, the precision of position measurement can be improved further. The road map data storage unit 3 is a storage unit that stores a road map database. Based on this road map data, the current location of the vehicle is displayed and the route to the destination is set. For example, it is realized by a DVD, a hard disk drive (HDD) device, other flash memory, or the like.

  The display unit 4 is a display device that displays map data and guidance routes to a user and displays an HMI (Human Machine Interface) screen for various operations. For example, a liquid crystal display is used. The input unit 5 is a component that receives an operation input from a user, and is realized by a soft key that uses a touch panel mounted on the screen of the display unit 4 such as a hard switch. The route guidance unit 6 uses the own vehicle position detected by the own vehicle position detection unit 2, the destination input by the input unit 5, and the road map data stored in the road map data storage unit 3 to reach the destination. This is a component that searches for a route and provides route guidance. For example, the user is notified by guiding the distance to the right or left turn of an intersection or the destination at a necessary timing.

  The travel history storage unit 7 is a storage unit that stores, for each destination, point information of a point where route guidance is canceled based on an instruction from the user to the input unit 5. The point information includes the destination of the guidance route, the distance from the point where the user releases the route guidance and the vehicle is off the guidance route to the destination, the point outside the guidance route (intersection), and the route guidance is released. And information such as the user name (driver name) who canceled the route guidance and the route information.

  The guidance end point analysis unit 8 analyzes the history information stored in the travel history storage unit 7 and determines a point where the normal user cancels the route guidance and ends (hereinafter referred to as a guidance end point). It is an analysis part that derives for each destination. For example, the remaining distance from the point where the route guidance included in the history information is canceled to the destination, the remaining expected arrival time or the actual actual arrival time in the past are extracted, the trend is analyzed with these statistics, and the route A guidance end point for automatically terminating guidance is determined for each destination.

Next, the operation will be described.
FIG. 3 is a flowchart showing route guidance processing by the navigation device according to the first embodiment, and details of the processing from when a guidance route is set until automatic cancellation is described along FIG.
First, the driver sets a destination using the input unit 5 based on the destination setting screen displayed on the screen of the display unit 4 (step ST1). For example, it is assumed that a home where the driver is assumed to be familiar with the surrounding geography is set as the destination.
The route guidance unit 6 uses the destination inputted by the input unit 5 in step ST1, the own vehicle position detected by the own vehicle position detection unit 2, and the road map data stored in the road map data storage unit 3, A route from the vehicle position to the destination is calculated and set, and the route is guided (step ST2).

  The route guidance unit 6 is preset with route guidance cancellation conditions based on the guidance end point determined by the guidance end point analysis unit 8. The route guidance cancellation condition is information for specifying the guidance end point determined by the guidance end point analysis unit 8. For example, the information is statistically obtained based on the history information stored in the travel history storage unit 7 and includes the remaining distance from the release point of the past route guidance to the destination.

  Next, in step ST3, the route guidance unit 6 determines whether or not the vehicle traveling on the guidance route satisfies the route guidance cancellation condition based on the vehicle position detected by the vehicle position detection unit 2. That is, it is determined whether or not the guidance end point corresponding to the destination of the guidance route determined by the guidance end point analysis unit 8 has been reached. Here, when the route guidance cancellation condition is satisfied (step ST3; YES), the route guidance unit 6 proceeds to step ST7, and ends the route guidance after the guidance end point.

  On the other hand, when the route guidance cancellation condition is not satisfied (step ST3; NO), the route guidance unit 6 has manually canceled the route guidance using the input unit 5 during the route guidance. Whether or not is always confirmed (step ST4). If the route guidance is not manually canceled (step ST4; NO), the process returns to step ST2 and the route guidance is continued.

When the route guidance is manually canceled (step ST4; YES), the route guidance unit 6 notifies the guidance end point analysis unit 8 to that effect.
When the guidance end point analysis unit 8 receives a notification that the route guidance has been manually canceled, the vehicle position detected by the vehicle position detection unit 2 and the road map stored in the road map data storage unit 3 Using the data, the remaining distance from the point where the route guidance was canceled to the destination, the remaining expected arrival time or the past actual arrival time from the time when the route guidance was canceled, the same destination Information such as the number of times the route guidance is canceled (guidance cancellation frequency) and the destination of the guidance route is acquired (step ST5). Thereafter, the guidance end point analysis unit 8 stores the information acquired in step ST5 in the travel history storage unit 7 in association with each destination.

  Next, the guidance end point analysis unit 8 reads out history information corresponding to the current destination out of the history information stored in the travel history storage unit 7, and averages, maximums, and minimums of these data. A value, distribution value, etc. are calculated, a guidance end point is determined based on the calculation result, and a route guidance cancellation condition is reset (step ST6). Thereafter, according to the route guidance cancellation performed in step ST4, the route guidance unit 6 ends the route guidance (step ST7). When route guidance is performed next time, the route guidance is terminated under the route guidance cancellation condition reset in step ST6.

Here, the statistical processing of history information performed in step ST6 will be described.
FIG. 4 is a diagram showing an example of statistical data of the frequency of canceling route guidance before reaching the destination and the distance to the destination, and the remaining distance from the point where the route guidance is canceled to the destination The normal distribution showing the relationship of guidance cancellation frequency is shown. The guidance end point analysis unit 8 records the remaining distance from the point where the route guidance is canceled to the destination from the history information stored in the travel history storage unit 7 for a predetermined number of times of guidance. A normal distribution as shown in FIG. 4 is created and data analysis is performed. In the case of FIG. 4, the frequency is highest when the remaining distance from the point where the route guidance is canceled to the destination is 1000 m. Further, about 80% of the cases where the route guidance is canceled are included in the distance range where the remaining distance is about 1500 m or less.

  Therefore, the guidance end point analysis unit 8 uses the normal distribution of FIG. 4 to determine, for example, a guidance end point specified by a remaining distance of 1500 m from the point where the route guidance is canceled to the destination. The remaining distance is set as a route guidance cancellation condition. Then, the route guidance unit 6 determines from the comparison result between the remaining distance to the destination of the current vehicle and the remaining distance that specifies the guidance end point determined by the guidance end point analysis unit 8. It is determined whether or not the guidance end point has been reached. As a result, when it is determined that the host vehicle has reached the guidance end point, the route guidance unit 6 finishes the route guidance. Thus, the route guidance can be automatically terminated at a point where the driver has manually canceled the route guidance in most cases (about 80%).

Further, the route guidance unit 6 is based on history information data of a predetermined number of times of guidance corresponding to the same destination stored in the travel history storage unit 7 based on the vehicle position detected by the vehicle position detection unit 2. When it is determined that the vehicle has reached the point corresponding to the maximum remaining distance from the point where the route guidance was canceled to the destination, “Because we entered the driving history area, route guidance will be completed in 3 km. It may end early. " Thus, the driver can know in advance that the guidance is automatically canceled during the route guidance.
Furthermore, the guidance end point analysis unit 8 determines a point corresponding to the average value or the minimum value of the remaining distances as the guidance end point, so that the route guide unit 6 can determine the average value of the remaining distances or If it is determined that the vehicle has reached a point corresponding to the minimum value, the route guidance is terminated by announcing that “the route guidance is omitted because of the travel history area”. In this way, by notifying the driver in advance that the route guidance will be canceled and having a predetermined time lag before the route guidance is automatically canceled, it is unnatural for the automatic cancellation of the route guidance. I don't feel For example, the driver can recognize that the navigation apparatus 1 is not malfunctioning.

  As described above, in the first embodiment, in route guidance where a driver frequently goes to a destination, the driver frequently deviates from the guidance route for reasons such as detailed knowledge of the geography and frequently changes the route itself. If so, the navigation device 1 determines the guidance end point. Therefore, the navigation device 1 performs necessary route guidance at a point where the own vehicle is away from the destination, and ends the route guidance after the guidance end point when the own vehicle reaches the guidance end point. As a result, even if the vehicle reaches the guidance end point and deviates from the guidance route, the corresponding route instruction is not executed.

  Each time the guidance end point analysis unit 8 performs route guidance to a certain destination, the above data is collected and stored in the travel history storage unit 7 as history information, and a predetermined guidance corresponding to the destination is obtained. When the history information data for the number of times is accumulated, the next guidance end point may be dynamically changed by performing statistical processing of the history information data and determining the guidance end point.

In the process shown in FIG. 3, when the determination in step ST3 is performed for the first time, the default value of the route guidance cancellation condition is used as a reference. For this default value, the route guidance cancellation tendency by the driver for each area, such as the city center or the local area, is investigated in advance, and the route guidance cancellation condition obtained based on this tendency (the driver frequently guides route guidance in the past). You may use the point information of the point where is canceled. Further, the route guidance cancellation tendency may be investigated for each driver, and the route guidance cancellation condition determined based on the tendency for each driver may be set as a default value.
The default value is initially set as one of navigation data used when the navigation device 1 executes route guidance.
A server device that manages default values for each destination may be provided. In this case, a distribution request including the destination of the route for which the user wants to end route guidance early is transmitted from the navigation device 1 to the server device. Thereby, the navigation apparatus 1 receives the default value returned from the server apparatus in response to the distribution request, and sets it as the route guidance cancellation condition.

As described above, in the technique of Patent Document 1, since only one of the pinpoint guidance mode and the normal guidance mode is selected at the time of route setting, the guidance end point cannot be changed during the route guidance. It was impossible to adapt to the route change intended by the driver or to finish the route guidance at an early stage.
In the present invention, the route guidance is terminated early as described above, thereby enabling the driver to switch to driving based on his / her own judgment without feeling stress. For example, in front of a point where the distance to the home of the vehicle is 1 km, a point where the expected arrival time to reach the home is 20 minutes, a convenience store where the driver frequently departs from the route, Even if the route deviates, the route guidance is terminated at that time, and the driver is not stressed by repeated route instructions.

Next, an example of setting route guidance cancellation conditions will be described.
FIG. 5 is a diagram illustrating an example of a situation when a route is manually canceled and a route guidance cancellation condition based on the situation. In FIG. 5, when the user 1 performs route guidance four times (predetermined) with his home as a destination, the user 1 deviates from the route at a point where the remaining distance from the point where the route guidance is canceled to the destination is 2000 m. The route guidance is canceled manually.
In this case, the guidance end point analysis unit 8 adds a predetermined margin distance (100 m) to 2000 m, which is the average value of the remaining distances obtained by the four route guidance, so that the remaining The route guidance cancellation condition is determined with the guidance end point being a point in front of the intersection (Ikeda) closest to the point of 2000 m which is the average value of the distance of 2100 m.
The route guidance unit 6 compares the remaining distance to the destination of the own vehicle and the distance before the intersection (Ikeda) and a distance of 2100 m, and determines that both values match and the vehicle has reached the guidance end point. Then, the route guidance after this is canceled. As a result, the route guidance can be ended before the route instruction is repeated, so that the user 1 does not feel stress due to the repetition of the route instruction.
In addition, the margin distance mentioned above should just be a distance which can notify in advance of the automatic completion of route guidance, for example. In the above case, the point on the route before reaching the intersection where the remaining distance from the point where the route guidance is canceled to the destination is 2000 m may be specified.

In addition, when the user 2 performs the route guidance with the home as the destination four times, the remaining distance from the point where the route guidance is canceled to the destination varies (within a range of 500 to 3000 m). The route guidance is canceled manually by deviating from the route at an estimated arrival time or past actual arrival time of 30 minutes from the time when the route guidance is canceled four times. In this case, the guidance end point analysis unit 8 adds a predetermined margin time (2 minutes) to 30 minutes, which is the average value of the arrival times obtained by the four route guidances, and returns to the destination. The route guidance cancellation condition is determined with the arrival time of 32 minutes as the guidance end point.
The route guidance unit 6 compares the predicted arrival time to the destination of the vehicle with the arrival time of 32 minutes arriving at the destination determined by the guidance end point analysis unit 8, and the two match. When it is determined that has arrived at the guidance end point, the subsequent route guidance is canceled. As a result, the route guidance can be terminated before the route instruction is repeated, so that the user 2 does not feel stress due to the repetition of the route instruction.
In addition, the allowance time mentioned above should just be time which can notify in advance of the automatic end of route guidance, for example.

Furthermore, when the user 3 performs the route guidance for the golf course as the destination four times, the route guidance is canceled when the remaining distance from the point where the route guidance is canceled to the destination is 5000 m. Is done manually. In this case, the guidance end point analysis unit 8 adds a predetermined margin distance (100 m) to 5000 m, which is the average value of the remaining distances obtained by the four route guidance, so that the remaining distance is obtained. The route guidance cancellation condition is determined with the point at a distance of 5100 m before the intersection (Yamaguchi) closest to the point of 5000 m as the guidance end point.
The route guidance unit 6 compares the remaining distance to the destination of the own vehicle with the distance 5100 m before the intersection (Yamaguchi) and determines that both values match and the vehicle has reached the guidance end point. Then, the route guidance after this is canceled. As a result, the route guidance can be terminated before the route instruction is repeated, so that the user 3 does not feel stress due to the repetition of the route instruction.
In this way, if it is statistically confirmed that the driver will take the same action if the destination is of the same type (type) without specifying individual destinations, The remaining distance may be calculated for each type to determine the guidance end point.

When the user 4 performs route guidance four times with the hospital as the destination, the remaining distance from the point where the route guidance is canceled to the destination is 0 m, that is, the user 4 is driving to the destination according to the route guidance. In this case, the guidance end point analysis unit 8 sets a route guidance cancellation condition in which a point (destination) of 0 m, which is the average value of the remaining distances obtained by four times of route guidance, is the guidance end point. decide. Thereby, the route guidance part 6 does not cancel route guidance until the own vehicle arrives at the destination.
In a route where it is determined that the possibility that the user 4 deviates from the route is low based on the history information, such as when the destination is a hospital, the guidance end point analysis unit 8 sets the guidance end point as the destination. Then, do not cancel the route guidance during route guidance.

Further, the following route guidance may be executed based on the history information of the user 2.
First, the guidance end point analysis unit 8 notifies that the route guidance is automatically terminated at a point where the remaining distance is 3000 m, which corresponds to the maximum remaining distance from the point where the route guidance is canceled to the destination. Set it as a point, and when your vehicle reaches this point, you will be notified that “We have entered the area around the driving history area, so we will end route guidance early in another 3 km.”
Then, the guidance end point analysis unit 8 sets a route guidance cancellation condition with a point of about 1.5 km, which is an average value of the remaining distances obtained by the four route guidance cancellation conditions, as a guidance end point. When it reaches the guidance end point of the above route guidance cancellation condition, the route guidance is automatically terminated by announcing that “the route history is omitted because of the travel history area”.
Thereby, it can avoid that the user 2 unnaturally feels that it complete | finishes automatically in the middle of route guidance.

  As described above, according to the first embodiment, the vehicle position detection unit 2 that detects the vehicle position, and the route that guides the route from the vehicle position detected by the vehicle position detection unit 2 to the destination. The travel history storage unit 7 that stores, for each destination, the location information of the location where the route guidance unit 6 canceled the route guidance based on the user's instruction, and the location information stored in the travel history storage unit 7 And a guidance end point analysis unit 8 that determines a guidance end point at which the route guidance unit 6 terminates the route guidance for each destination. The route guidance unit 6 detects the vehicle position detected by the vehicle position detection unit 2. Based on the above, it is determined whether or not the vehicle has reached the guidance end point corresponding to the destination determined by the guidance end point analysis unit 8. End. In this way, the route guidance can be automatically canceled before the driver deviates from the guidance route. This eliminates the need for the driver to change the guidance route itself to the destination while driving. In addition, since the route guidance is automatically terminated before the route instruction is repeated outside the route, it is possible for the driver to travel on the desired route without feeling the stress caused by the repeated route instruction. is there.

  Further, according to the first embodiment, the travel history storage unit 7 stores, as point information, a point where the route guidance unit 6 cancels the route guidance based on a user instruction and the distance from this point to the destination. The guidance end point analysis unit 8 analyzes the point information stored in the travel history storage unit 7, determines the guidance end point based on the point from which the route guidance is canceled and the distance from this point to the destination, Based on the comparison result between the distance from the vehicle position detected by the vehicle position detection unit 2 to the destination and the distance from the guidance end point to the destination determined by the guidance end point analysis unit 8, the route guidance unit 6 It is determined whether or not the vehicle has reached the guidance end point. Thereby, since the route guidance is automatically canceled in the route section where the user does not require route guidance, it is possible to eliminate the trouble and troublesomeness of the user canceling the route guidance or changing the guidance route itself. .

  Further, according to the first embodiment, the route guidance unit 6 is located at a point corresponding to the maximum distance from the point where the route guidance stored in the travel history storage unit 7 is canceled to the destination. If it is determined that the route guidance has been reached, the user is notified that the route guidance is to be canceled, and the route guidance is automatically canceled after the user recognizes that the route guidance will be canceled. Thus, the driver can know in advance that the guidance is automatically canceled during the route guidance.

  Further, according to the first embodiment, the guidance end point analysis unit 8 analyzes the point information stored in the travel history storage unit 7 and averages the distance from the point where the route guidance is canceled to the destination. The point corresponding to the value or the minimum value is determined as the guidance end point, and the route guidance unit 6 determines the distance from the point where the route guidance stored in the travel history storage unit 7 is released after the above-mentioned notification to the destination. When it is determined that the mobile body has reached the guidance end point corresponding to the average value or the minimum value, the route guidance after the guidance end point is ended. In this way, by providing a predetermined time lag between informing the user that the route guidance will be canceled in advance and actually canceling the guidance, the user is automatically guided during the route guidance. Even if released, you will not feel unnaturalness. That is, it can be recognized that the navigation apparatus 1 is not malfunctioning.

  Further, according to the first embodiment, the guidance end point analysis unit 8 determines the intersection closest to the point corresponding to the distance from the point where the route guidance is canceled to the destination as the guidance end point, and the route guidance unit When it is determined that the vehicle has reached the intersection determined by the guidance end point analysis unit 8, the route guidance after the intersection is terminated. In this way, by canceling the subsequent route guidance with the intersection as a reference, it is possible to eliminate repetition of route instructions such as unnecessary reroute search.

  Further, according to the first embodiment, the travel history storage unit 7 determines the point where the route guidance unit 6 canceled the route guidance based on the user's instruction and the estimated arrival time or past actual arrival from this point to the destination. The time is stored as point information, and the guidance end point analysis unit 8 analyzes the point information stored in the travel history storage unit 7 to cancel the route guidance and the expected arrival time from this point to the destination. Alternatively, based on the past actual arrival time, the guidance end point is determined, and the route guidance unit 6 identifies the expected arrival time to the destination of the vehicle and the guidance end point determined by the guidance end point analysis unit 8. Based on the comparison result with the time or the past actual arrival time, it is determined whether or not the vehicle has reached the guidance end point. Even in this way, since the route guidance is automatically canceled in the route section that does not require route guidance, the user has to cancel the route guidance or to change the guidance route itself. Can be resolved.

  Further, according to the first embodiment, the route guide unit 6 determines the expected arrival time to the destination of the own vehicle and the estimated arrival time or past history that identifies the guidance end point determined by the guidance end point analysis unit 8. It is determined that the vehicle has reached the guidance end point when the actual arrival time matches, and the route guidance after the guidance end point is ended. In this way, by canceling the subsequent route guidance based on the estimated arrival time to the destination, it is possible to eliminate repeated route instructions such as unnecessary reroute search.

In the first embodiment, the case where the navigation device of the present invention is applied to an in-vehicle navigation device has been described. However, not only the in-vehicle navigation device but also a mobile phone terminal or a personal digital assistant (PDA; Personal Digital Assistance). ).
Moreover, you may apply to PND (Portable Navigation Device) etc. which a person carries and uses in moving bodies, such as a vehicle, a railroad, a ship, or an aircraft.

  In the present invention, any constituent element of the embodiment can be modified or any constituent element of the embodiment can be omitted within the scope of the invention.

  1 navigation device, 2 vehicle position detection unit, 3 road map data storage unit, 4 display unit, 5 input unit, 6 route guidance unit, 7 travel history storage unit, 8 guidance end point analysis unit.

Claims (3)

A position detector for detecting the position of the moving object;
A route guidance unit for guiding a route from the position of the moving body detected by the position detection unit to a destination;
A storage unit that stores, for each destination, point information of points where the route guide unit canceled the route guidance based on a user's instruction;
An analysis unit that determines a guidance end point at which the route guidance unit ends the route guidance for each destination based on the point information stored in the storage unit;
The route guidance unit determines whether the moving body has reached a guidance end point corresponding to the destination determined by the analysis unit based on the position of the moving body detected by the position detection unit. If it is determined that the route has been reached, the route guidance after the guidance end point is terminated ,
The storage unit stores, as the point information, a point from which the route guide unit canceled route guidance based on a user instruction and a distance from the point to the destination.
The analysis unit analyzes the point information stored in the storage unit, determines a guidance end point based on the point from which the route guidance is canceled and the distance from the point to the destination,
The route guide unit is based on a comparison result between a distance from the position of the moving body detected by the position detection unit to the destination and a distance from the guidance end point determined by the analysis unit to the destination. Is determined to have reached the guidance end point, and the mobile body has reached a point corresponding to the maximum value of the distance from the point where the route guidance stored in the storage unit is canceled to the destination A navigation device characterized by notifying that route guidance is canceled when it is determined . The analysis unit analyzes the point information stored in the storage unit, determines a point corresponding to the average value or the minimum value of the distance from the point where the route guidance is canceled to the destination as a guidance end point,
The route guidance unit, when the moving body from the point releasing the route guidance stored in the storage unit to the guidance end point corresponding to the average value or the minimum value of the distance to the destination is determined to have reached the the navigation system of claim 1, wherein the terminating the route guidance of the guidance end point or later. The analysis unit determines the intersection closest to the point corresponding to the distance from the point where the route guidance is canceled to the destination as the guidance end point,
The route guidance unit, when the moving object is determined to have reached the intersection determined by the analysis unit, a navigation device according to claim 1, characterized in that to terminate the route guidance after the intersection.

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