JP2005315660A - Navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation system capable of performing route guidance according to a travel plan. <P>SOLUTION: The navigation system determines whether the vehicle can arrive at the destination within the business hours or not, when the destination is set by a user by input. If it is determined not, the navigation system guides as an alternative spot where the vehicle can arrive at within the business hours even it is other than the destination. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a navigation device.

2. Description of the Related Art Conventionally, there is a navigation device that is attached to an automobile and guides a destination by displaying a route from the current location to the destination by setting each destination. This type of navigation device searches for the optimal route between points by registering each desired stop in the navigation device in advance when planning a trip to the final destination while visiting a plurality of points. A navigation device that can do this is known (Patent Document 1).
JP 2002-197150 A

  By the way, in the navigation device described in Patent Document 1, a stop point is temporarily registered, and when the trip is executed, the registered point is read and route guidance is executed. For this reason, if a condition different from the time of travel planning occurs, for example, when the budget is insufficient or the destination cannot be reached by business hours during the trip, the user again There was annoyance that had to search and register the place.

  The present invention has been made paying attention to the above-mentioned conventional problems, and the object thereof is to provide a navigation device that guides a travel plan via a transit point between a departure point and a final fixed point. It is another object of the present invention to provide a navigation device that can execute route guidance according to a travel plan.

  In order to achieve the above object, the invention described in claim 1 is a navigation device for guiding a route from a current position to a destination registered in advance, and stores a plurality of the destinations in advance, First storage means for storing an alternative place to which a predetermined first condition is added for each destination, and at least one destination is set from the plurality of destinations, and the destination A registration unit that sets a second condition for the destination and stores a second storage unit; a determination unit that determines whether the second condition for the set destination is within an allowable range; When the determination means determines that the second condition is not within the allowable range, a proposal is proposed in which an alternative place for the set destination of the first condition allowing the second condition is read from the first storage means and proposed. Characterized by comprising and.

  In the navigation device according to claim 1, the first condition and the second condition are business hours, and the determination unit determines whether the business hours are in time. And the proposing means reads out and proposes an alternative place in time for the business hours from the first storage means when the judging means judges that it is not in time for the business hours. .

  In the navigation device according to claim 1, the first condition is a predetermined expense spent in the alternative place, and the second condition is: The budget spent at the destination, the determining means determines whether the budget for the set destination is within a predetermined allowable range, and the proposing means is configured to determine whether the budget is within the allowable range. If the determination means determines that the alternative location is not present, an alternative place that falls within the allowable range is read from the first storage means and proposed.

  According to a fourth aspect of the present invention, in the navigation device according to any one of the first to third aspects, the alternative place proposed by the proposing means is associated with the destination in the second storage means. A second registration means for storing is provided.

  According to the first aspect of the present invention, even if the second condition for the destination is not within the allowable range, the route guidance according to the travel plan can be performed by proposing an alternative destination for the set destination. Can do.

According to the second aspect of the present invention, even when it is determined that it is not in time for business hours, it is possible to provide route guidance according to the travel plan by proposing an alternative place for the set destination.
According to the third aspect of the present invention, even when it is determined that the budget is not within the allowable range, it is possible to provide route guidance according to the travel plan by proposing an alternative place for the set destination.

  According to the fourth aspect of the present invention, the second registration means can store the alternative place proposed by the suggestion means in the second storage means in association with the destination.

(First embodiment)
Hereinafter, an embodiment of a navigation device embodying the present invention will be described with reference to FIGS.

  FIG. 1 is a schematic configuration diagram of a navigation device according to the present embodiment. In the present embodiment, the navigation device 1 is a navigation device (hereinafter referred to as a navigation device) mounted on an automobile.

  As shown in FIG. 1, the navigation device 1 includes an input / output device 2, a current position detection device 3, an information storage device 4, and a main control device 5. The input / output device 2, the current position detection device 3, and the information storage device 4 are electrically connected to the main control device 5, respectively, so that data can be exchanged between the devices.

  The input / output device 2 is, for example, the display 6 or the remote controller R. The display 6 is composed of a known color liquid crystal display, and receives various image data and text data output from the main control device 5, and displays text information based on the image and text data based on the image data. The display 6 displays, for example, a surrounding map including the current position of the car or a route guidance map to the destination. Furthermore, the display 6 displays a setting screen for registering a travel plan, for example.

  The remote controller R is an input means for inputting desired items by the user's operation, and is used for selecting various buttons displayed on the display 6 and inputting text information in the space column. Then, the input content is output as data to the main controller 5.

The current position detection device 3 includes a GPS receiving device (Global Positioning System) 7 and a VICS.
(Vehicle Information and Communication System) The receiving apparatus 8, the vehicle speed sensor 9, and the direction sensor 10 are comprised. The current position detecting device 3 sends various data received by the GPS receiving device 7 and the VICS receiving device 8 and data of each sensor value detected by the vehicle speed sensor 9 and the direction sensor 10 to the main control device 5, respectively. Output. Then, the current position detection device 3 outputs data relating to the current position of the vehicle on which the navigation device 1 is mounted and road information necessary for traveling to the main control device 5.

  The information storage device 4 includes a map data storage unit 11, a search data storage unit 12, and a facility data storage unit 13. The map data storage unit 11 stores map data such as a road map, a house map, and a building shape map. The search data storage unit 12 stores data relating to various road information such as a road between predetermined points and traffic regulation information of the road, distance, and toll.

  The facility data storage unit 13 stores data of addresses and telephone numbers of public facilities such as ward offices, hospitals, schools, and stations, or addresses of famous places and various stores. The information storage device 4 may be configured by software such as a DVD, for example.

  The main control device 5 includes a search processing unit 14, a search processing unit 15, and a function processing unit 16. The search processing unit 14 calculates a coordinate value indicating the current position of the vehicle based on various data relating to the current position of the vehicle from the current position detection device 3. And the search process part 14 inquires the map data memorize | stored in the map data memory | storage part 11, and searches the present position of the motor vehicle on the map data corresponding to the calculated coordinate value. In addition, the search processing unit 14 refers to the map data stored in the map data storage unit 11 for the registered destination, and searches for a position on the map data. Then, the search processing unit 14 causes the display 6 to output image data corresponding to the current position of the vehicle and the map data around the destination obtained as a result of the search, and causes the display 6 to display the image data.

  The search processing unit 15 searches the search data stored in the search data storage unit 12 for a route between points registered by the user. This is performed when the user registers, for example, two predetermined points on the map displayed on the display 6 by operating the remote controller R, for example. The search processing unit 15 searches for the route between the two points from the data in the search data storage unit 12, and displays the search result on the map displayed on the display 6 by the search processing unit 14. In addition, the search processing unit 15 acquires coordinate values related to the current position of the vehicle calculated by the search processing unit 14 and searches for a route from the current position of the vehicle to the destination. Then, the search result is displayed on the display 6 so as to be superimposed on a map showing the destinations registered from the current position of the car.

  FIG. 2 is a diagram for explaining the configuration of the function processing unit 16 of the present embodiment. As shown in FIG. 2, the function processing unit 16 includes a travel plan creation unit 16a as a registration unit, an alternative site proposal unit 16b as a first storage unit, and a second storage unit, a determination unit, and a proposal unit. The travel process management unit 16c is provided.

  The travel plan creation unit 16a is a processing unit that creates and registers the details of the travel plan for the user. In the present embodiment, the details of the travel plan are conditions desired by the user, such as departure time, departure point, number of travelers, total budget, travel area, destinations to go to, and business hours of each destination.

In addition, the travel plan creation unit 16a creates an optimal travel plan by calculating the estimated arrival time of each destination that can visit all destinations based on the input travel plan.
The alternative site proposal unit 16b stores in advance alternative site information to which a plurality of spot names and business hours are added. Further, the alternative place proposing unit 16b is also operated outside the business hours (outside the allowable range) of each destination as the second condition from a point in the same area as the area to which each destination input by the user belongs. Search for other places that you have, such as other places. Then, the names of other points operating outside the business hours of the respective destinations are read and output to the travel process management unit 16c as alternatives to the destinations. Further, the time during which the alternative land is open corresponds to the first condition described in the claims.

  The travel process management unit 16c calculates the expected arrival time of each destination from the VICS information of the VICS receiver 8 and the current location information of the automobile during the trip. When it is determined that the expected arrival time cannot arrive within the business hours of the destination (within the allowable range), an alternative place for the destination that is open at the expected arrival time is output from the alternative place proposal unit 16b. Data to be read out and guided from the same area as the area to which the destination belongs is created.

In the present embodiment, this business time corresponds to the first condition and the second condition described in the claims.
FIG. 3 is a screen view of the guidance screen G1 displayed on the display 6 after the travel plan is input.

  As shown in FIG. 3, the display 6 displays the date and time of travel on the right side of the text information indicating the travel departure time. Further, on the lower side in FIG. 3, the expected arrival time of each destination, the area to which the destination belongs, the destination and its business hours are displayed. Moreover, the alternative point with respect to the destination and the business hours of the alternative point are displayed at the positions described as the first alternative place and the second alternative place.

  In this embodiment, the first destination area that departs from the departure place is the Yokohama area, the next destination area that is visited is the Shizuoka area, and the last destination area that is visited is the Nagoya area. The destination in the Yokohama area is the first destination, the destination in the Shizuoka area is the second destination, and the destination in the Nagoya area is the third destination. Two alternative sites (first and second alternative sites) are provided for each area destination.

  Each destination (visit destination) has business hours, and the business hours of the first destination are “9:00 to 14:00” and “17:00 to 21:00”. The business hours of the second destination are “10: 0 to 20:00”, and the business hours of the third destination are “12: 0 to 21:00”.

  The first and second alternative locations for each destination (visit destination) also have business hours. Incidentally, the business hours of the first alternative place for the first destination are “9:00 to 15:00”, and the business hours of the second alternative place are “24 hours”. Further, the business hours of the first alternative place for the second destination are “17:00 to 25:00”, and the business hours of the second alternative place are “24 hours”. In addition, the business hours of the first alternative place with respect to the third destination are “6: 00 to 15:00”, and the business hours of the second alternative place are “19:00 to 6:00”. is there.

  Therefore, even if the user arrives outside the business hours of each destination, the user is guided to the first or second alternative place in the area. In addition, the estimated arrival time of each destination is also displayed by the flag F in the guidance screen G1. Then, the travel plan of the displayed content is registered by selecting the determination button K described as “travel plan determination” in the guidance screen G1.

  FIG. 4 is a diagram for explaining a method of inputting a travel plan, and is a screen diagram of a travel plan input screen (hereinafter referred to as an input screen) G2 created by the travel plan creation unit 16a. The user inputs “travel departure time”, “departure point”, “total budget”, “travel number”, “destination area”, and “destination” according to the text information displayed on the input screen G2.

Specifically, the user selects the tabs T1 to T4 provided on the right side of the text information described as “travel departure time” on the input screen G2 using the remote controller R, and travels “year / month / day / time”. In addition, the tab T5 provided on the right side of the text information in which “Travel number” is described is selected, and “Travel number” is input respectively. Further, a search button B1 provided on the right side of the text information “departure point” can be selected to input “departure point”. Further, “total budget” is written and “total budget” can be entered in the entry space column S1 provided on the right side of the text information.

  On the input screen G2, setting buttons B2 to B4 for setting a destination and a destination area are provided. When the first setting button B2 is selected, the screen is switched to a screen (not shown), and a pre-stored destination area is displayed, and an area to which a desired first destination belongs and a first destination are displayed. The business hours of the first destination can be input.

  Similarly, when the second setting button B3 is selected, the screen is switched to a screen (not shown), and the destination area stored in advance is displayed on the screen, and the area to which the desired second destination belongs and the second area are displayed. The destination and the business hours of the second destination can be input.

  Furthermore, when the third setting button B4 is selected, the screen is switched to a screen (not shown), and a destination area stored in advance is displayed on the screen, and an area to which the desired third destination belongs and the third destination are displayed. The place and the business hours of the third destination can be input.

  On the input screen G2, a button B5 described as “add destination” is provided. By selecting this button B5, the screen is switched, and the destination can be additionally input on the switched screen. .

  Further, on the input screen G2, a button B6 described as “addition of alternative place” is provided. By selecting this button B6, the business hours of the destination previously input by the alternative place proposal unit 16b are selected. In addition, points such as other sights and various stores that are open outside business hours are searched. Then, the input screen G2 is switched, the first and second alternative locations for each destination are searched on the switched screen, and the result is displayed.

  FIG. 5 is a screen view of an alternative place screen on which first and second alternative places for each searched destination are displayed. As shown in FIG. 5, on the alternative site screen G3, two first and second alternative sites and their business hours are displayed for each of the destination areas Yokohama area, Shizuoka area, and Nagoya area. .

On the alternative site screen G3, a button B7 described as “substitute site determination”, a button B8 described as “manual search for alternative site”, and a button B9 described as “return” are provided.
When the button B7 described as “substitute place determination” is selected, each point displayed on the substitute place screen G3 is adopted as the first and second substitute places, and the input screen G2 is switched and displayed. When the button B8 described as “Alternative place manual search” is selected, the screen is switched so that other points different from the points displayed on the alternative place screen G3 can be manually searched. . Further, when the button B9 described as “Return” is selected, it is possible to return to the input screen G2.

  On the input screen G2, a button B10 described as “Create travel plan” is provided. By selecting this button B10, calculation is performed so that all of the inputted travel plan can be visited, and the result is displayed on the display 6 as the above-described guidance screen G1 (see FIG. 3).

In the present embodiment, as shown in FIG. 4, the travel period (date and time) is “March 3, 2004, 9:00”, the departure point is “Home (Tokyo)”, and the total budget is “20,000 yen”. ”And the number of travelers is entered as“ 4 people ”. In the present embodiment, the total budget is the total amount of expenses spent on this trip. The first destination is “Yokohama Chinatown”, and the first destination area is “Yokohama”. The second destination is “Shizuoka Prefectural Nippondaira Zoo”, and the second destination area is “Shizuoka”. The third destination is “Nagoya Castle”, and the third destination area is “Nagoya”.

In this way, a travel plan can be entered.
Next, how to use the navigation device 1 will be described with reference to the flowchart of the operation of the navigation device 1 shown in FIGS.

  First, as shown in FIG. 6, the ignition of the automobile is turned on (S1-1), and the navigation apparatus 1 is driven. Then, a screen (not shown) is displayed on the display 6 to ask whether or not to execute a trip according to the travel plan. At this time, if it is selected to execute a trip according to the travel plan (YES in S1-2), guidance according to the registered travel plan is started (S1-3).

On the other hand, if it is selected not to execute a trip according to the travel plan (NO in S1-2), input screen G2 (see FIG. 3) is displayed on display 6, and the creation of the travel plan starts (S1-
4). Then, according to the input screen G2, the travel period, the departure point, the total budget, and the number of travelers are entered (S1-5). Subsequently, the travel area, the destination for the travel area, and the business hours of the destination are input (S1-6).

  Subsequently, when the button B10 (see FIG. 4) described as “Create travel plan” provided on the input screen G2 is selected, the travel plan is calculated (S1-7), and the result is displayed on the display 6 as a guidance screen. It is displayed as G1 (see FIG. 3) (S1-8).

Then, when the alternative place proposal is not executed (NO in S1-9), and then determination button K is selected (YES in S1-10), the travel plan input ends.
On the other hand, when the alternative site proposal is executed (YES in S1-9), the button B6 (see FIG. 4) on the input screen G2 on which “additional alternative site” is described is selected. Then, based on the input destination and its business hours, it is determined whether or not the calculated expected arrival time may exceed the business hours. If it is determined that the arrival time may exceed the business hours (YES in S1-12), the alternative place proposal unit 16b searches for alternative places for each destination (S1-13), and again A travel plan is calculated (S1-7).

  On the other hand, when it is determined that there is no possibility that the predicted arrival time will exceed the business hours (NO in S1-12) and the enter button K is selected (YES in S1-10), the travel plan input is completed. To do. If determination button K has not been selected (NO in S1-10), it is determined whether or not another place proposal is to be executed. In this way, it is possible to register a travel plan of desired conditions.

FIG. 7 is a flowchart of an operation for executing guidance according to the travel plan registered by the navigation device 1.
First, as described above, the navigation device 1 is driven, and a screen (not shown) is displayed on the display 6 asking whether or not to execute a trip according to the travel plan. And if it chooses that the trip according to a travel plan will be performed, guidance will start according to the travel plan (S1-3).

Then, a trip is executed and when a destination in one area is reached (S1-21), an operation for setting and executing a destination in the next area is awaited (S1-22). Then, when the next destination is set and executed (YES in S1-22), guidance to the next destination is displayed on display 6. On the other hand, for example, when an operation for arriving at the last destination and finishing the guidance is performed (NO in S1-22), the navigation apparatus 1 finishes the guidance (S1-23).
.

As described above, the present embodiment has the following effects.
(1) According to this embodiment, it is another point (place) in the same area as the area to which the destination inputted by the user belongs, and is open during business hours and outside business hours of the destination. Other places such as other famous places and various stores were proposed as alternative places. That is, when creating a travel plan, an alternative place for a case where the destination cannot be reached at the planned time is proposed. Therefore, even if it is impossible to arrive at the destination as scheduled, it is possible to go to an alternative place that operates on behalf of the destination without searching for a new destination and re-registering. As a result, it is possible to realize the navigation device 1 capable of executing optimum route guidance corresponding to the change in the arrival time.
(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS.

  The navigation device 1a of the present embodiment is the same as the navigation device 1 of the first embodiment, except that the configuration of the function processing unit constituting the main control device is different. Accordingly, the same constituent members are denoted by the same reference numerals and detailed description thereof is omitted. In the present embodiment, the navigation device 1a is a navigation device mounted on an automobile.

  As shown in FIG. 8, the main control device 5 a of the present embodiment includes a search processing unit 14, a search processing unit 15, and a function processing unit 20. Each of the search processing unit 14 and the search processing unit 15 has the same function as that of the first embodiment, and only the function processing unit 20 has a function different from that of the first embodiment. Therefore, the details of the function processing unit 20 will be described below, and details of the other search processing units 14 and the search processing unit 15 will be omitted.

  FIG. 9 shows a configuration of the function processing unit 20 of the present embodiment. As shown in FIG. 9, the function processing unit 20 includes a travel plan creation unit 20a as a registration unit, a budget management unit 20b as a first storage unit, a second storage unit, a determination unit, and a travel process as a proposal unit. A management unit 20c is provided.

  The travel plan creation unit 20a includes input screen display data for registering a travel plan desired by the user. The trip plan creation unit 20a displays an input screen based on the input screen display data on the display 6 before the trip, and allows the user to register the trip plan. The travel plan of the present embodiment is a departure time, departure point, number of travelers, total budget, travel area, destination for the travel area, and budget for expenses spent at the destination. In the present embodiment, the budget for the cost spent at this destination corresponds to the second condition described in the claims.

  The budget management unit 20b includes a program that calculates an error (prediction error) with respect to the budget of each destination, and a program that calculates a budget balance in consideration of the prediction error. Then, the budget management unit 20b outputs the budget balance to the travel process management unit 16c.

  The travel process management unit 20c is preliminarily provided with alternative spot information such as spot locations and expenses such as famous places and various stores. When the travel process management unit 20c determines that the budget balance is 0 yen or less (out of the allowable range), a new point where the budget balance is 0 yen or more, and an alternative (alternative) of the budget at that point Budget plan) is read from another point in the same area as the area to which each destination whose budget balance is 0 yen or less belongs, and is displayed on the display 6 as an alternative place. In the present embodiment, a predetermined expense budget (alternative budget plan) spent in this alternative place corresponds to the first condition described in the claims.

FIG. 10 is a diagram for explaining an example of an alternative budget plan calculation method. FIG. 10 (a)
It is a figure which shows the budget of the destination (visit destination) for every area, and the budget balance from a total budget. As shown in FIG. 10 (a), the total budget is 15000 yen, the budget for the first destination is “3000 yen”, the budget for the second destination is “5000 yen”, and the budget for the third destination is The budget is “5500 yen”. The total budget and the budget for each destination correspond to the total budget registered on the input screen G5, which will be described later by the user, and the budget for expenses spent at each destination.

  Therefore, the budget balance after visiting the first destination is 15000-3000 = 12000 yen, and the budget balance after visiting the second destination is 12000-5000 = 7000 yen. The budget balance after visiting the third destination is calculated as 7000-5500 = 1500 yen.

  FIG. 10B is a diagram for explaining a method for calculating an alternative budget plan for each destination. As shown in FIG. 10B, the prediction error for each destination is calculated by a program stored in the budget management unit 20b. In this example, the prediction error is ± 1000 × (number of destinations). It is a value calculated based on this. That is, the budget management unit 20b determines that the prediction error at the first destination is ± 1000 yen, the prediction error at the second destination is ± 2000 yen, and the prediction error at the third destination is ± 3000 yen. Become. The prediction error of the second destination is the prediction error of the first destination, and the prediction error of the third destination is the prediction error of the first destination and the prediction error of the second destination. This is a value taken into account. In this way, since the prediction error accumulates and becomes larger in the second half of the trip, the amount actually spent will differ from the budget in the second half of the trip, but since the prediction error is set according to the number of destinations, more It becomes possible to predict the balance with high accuracy.

  Since the total budget is “15000 yen”, the budget of the first destination is “3000 yen”, and the prediction error of the first destination is “± 1000 yen”, the balance after the first destination visit Is calculated as 15000− (3000 ± 1000) = 11000 to 13000 yen. In addition, since the sum of the budget of the second destination and the third destination is “10500 yen (= 5000 + 5500 yen)”, for example, the amount according to the budget is used at the second and third destinations. In such a case, the balance after the end of the trip will be +500 to +2500 yen. Thereby, when the prediction error of the first destination is set to be ± 1000 yen, the balance after the end of the trip is +500 to +2500 yen, so that it can be finished within the total budget range.

  Next, when 3000 yen is spent according to the budget at the first destination, the balance is 15000-3000 = 12000 yen. Further, since the budget for the second destination is 5000 yen and the prediction error is ± 2000 yen, the balance after the second destination visit is calculated as 12000− (5000 ± 2000) = 5000 to 9000 yen. The For example, when the amount of money according to the budget (5500 yen) is used at the third destination, the balance after the trip is -500 to +3500 yen. As a result, when the prediction error of the second destination is set to ± 2000 yen, the balance after the end of the trip is -500 to +3500 yen, so the prediction error of the second destination is +1500 yen or more It will not fit within the total budget range. For example, when the prediction error of the second destination is +2000 yen, only 500 yen is insufficient.

  Next, when the amount according to the budget is used at the first and second destinations, the balance becomes 15000− (3000 + 5000) = 7000 yen. Further, since the budget for the third destination is 5500 yen and the prediction error is ± 3000 yen, the balance after the third destination visit is calculated as 7000− (5500 ± 3000) = − 1500 to 4500 yen. Is done. As a result, when the prediction error of the third destination is set to ± 3000 yen, the balance after the end of the trip is −1500 to 4500 yen, so the prediction error of the third destination is +1500 yen or more. It will not fit within the total budget range. For example, when the prediction error of the third destination is +3000 yen, only 1500 yen is insufficient.

  And the travel process management part 20c searches the alternative place (visit destination) where the budget balance becomes 0 yen or more from the same area as the area to which each destination to which the budget balance became 0 yen or less belongs from the substitute point information . In this example, the travel process management unit 20c searches for an alternative place where the cost spent from the same area as the area to which the second destination belongs is 4500 yen or less. Similarly, the travel itinerary management unit 20c searches for an alternative place (visit destination) having a cost of 4000 yen or less from the same area as the area to which the third destination belongs.

  As a result, there is no fear that the area to which the second destination belongs will be less than 500 yen. Similarly, in the area to which the third destination belongs, there is no fear that 1500 yen will be insufficient.

  FIG. 11 is a screen diagram of a travel plan guidance screen G4 in consideration of the prediction error displayed on the display 6. As shown in FIG. As shown in FIG. 11, the total budget, the area, the budget for each area, and the balance for each area input by the user are displayed. Also, alternative points for each destination are displayed. In this example, in the area to which the second destination belongs (second destination area), the alternative destination with a budget of 4000 yen is used, and in the area to which the third destination belongs (third destination area), the budget is 2000. Each alternative place for the circle is shown. In this way, it is possible to propose a travel plan that surely fits within the total budget for the user.

Next, a travel plan input method will be described with reference to FIG.
FIG. 12 is a screen diagram of the input screen G5 created by the travel plan creation unit 20a. The user inputs the travel departure time, departure point, total budget, number of travelers, destination area, destination, and destination budget according to the text information displayed on the input screen G5.

  Specifically, the user executes a trip by selecting tabs T11 to T14 provided on the right side of the text information described as “travel departure time” on the input screen G5 using the remote controller R. The time and the number of travelers are entered by selecting the tab T15 provided on the right side of the text information describing “number of travelers”. In addition, the departure point can be input by selecting a search button B11 provided on the right side of the text information described as “departure point”. Further, the total budget can be entered in the entry space column S11 which is described as “total budget” and is provided on the right side of the text information.

  On the input screen G5, setting buttons B12 to B14 for setting the destination and the destination area are provided. When the first setting button B12 is selected, the screen is switched to a screen (not shown) so that the area to which the desired first destination belongs, the first destination, and the budget for the first destination can be input. It has become.

  Similarly, when the second setting button B13 is selected, the screen is switched to a screen (not shown), and the area to which the desired second destination belongs, the second destination, and the budget for the second destination are displayed. It can be input. Further, when the third setting button B14 is selected, the screen is switched to a screen (not shown), and the area to which the desired third destination belongs, the third destination, and the budget for the third destination are input on the screen. It can be done.

  On the input screen G5, a button B15 described as “Add destination” is provided. And when inputting three or more destinations, this button B15 is selected. Then, the screen is switched, and a new destination, an area to which the new destination belongs, and a budget can be additionally input on the switched screen.

Further, on the input screen G5, a button B16 described as “Additional replacement place” is provided. By selecting this button B16, the budget management unit 20b takes into account the budget balance considering the prediction error from the total budget and Alternative locations are searched. Then, the input screen G2 is switched, an alternative place for each destination is searched on the switched screen, and the result is displayed.

  FIG. 13 is a screen diagram of an alternative place screen G6 on which a budget balance and an alternative place in consideration of a prediction error for each searched destination are displayed. As shown in FIG. 13, the alternative destinations of the second destination area to which the second destination belongs and the third destination area to which the third destination belongs are shown. As shown in FIG. 13, in this example, in the second destination area to which the second destination belongs, the budget is 4000 yen, and in the third destination area to which the third destination belongs, the budget is Each alternative point of 2000 yen is shown.

On the alternative site screen G6, a button B17 described as “determined alternative site”, a button B18 described as “manual search for alternative site”, and a button B19 described as “return” are provided.
When the button B17 described as “substitute place determination” is selected, each substitute place displayed on the substitute place screen G6 is set, and is switched to the input screen G5 and displayed. When the button B18 described as “alternative place manual search” is selected, the screen is switched, and it becomes possible to manually search for another alternative place different from each alternative place displayed on the alternative place screen G6. ing. Further, when the button B19 described as “Return” is selected, the user can return to the guidance screen G4. On the guidance screen G4, a button B21 having “travel plan creation” is provided. The selected travel plan is registered by selecting this button B21.

  In the present embodiment, the input content is shown on the input screen G5 as shown in FIG. Incidentally, the travel period (date and time) is “March 3, 2004, 9:00”, the departure point is “Home (Tokyo)”, the total budget is “15000 yen”, and the number of tourists is “2 people” Is entered. Note that the total budget is the total amount of expenses spent on this trip in this embodiment. The first destination is “Yokohama Chinatown”, and the first destination area is “Yokohama”. The second destination is “Shizuoka Prefectural Nihondaira Zoo”, and the second destination area is Shizuoka. The third destination is “Nagoya Castle”, and the third destination area is “Nagoya”.

Next, a method of using the navigation device 1a will be described with reference to the flowcharts of FIGS.
First, as shown in FIG. 14, the ignition of the automobile is turned on (S2-1), and the navigation apparatus 1a is driven. Then, a screen (not shown) is displayed on the display 6 to ask whether or not to execute a trip according to the travel plan. At this time, if it is selected to execute a trip according to the travel plan (YES in S2-2), guidance according to the registered travel plan is started (S2-3).

On the other hand, if it is selected not to execute a trip according to the travel plan (NO in S2-2), input screen G5 (see FIG. 12) is displayed on display 6, and the creation of the travel plan starts (S2).
-4). Then, according to the input screen G5, the travel period, departure point, total budget, and number of travelers are entered (S2-5). Subsequently, the travel area, the destination for the travel area, and the budget for the destination are input (S2-6).

  Subsequently, when the button B20 (see FIG. 12) described as “Create travel plan” provided on the input screen G5 is selected, a travel plan is calculated (S2-7), and the result is displayed on the display screen 6 as a guidance screen. It is displayed as G4 (see FIG. 11) (S2-8).

Then, the search for an alternative place is not executed (NO in S2-9), and then button B20 is selected (YES in S2-10), and the travel plan input ends.
On the other hand, when the alternative site proposal is executed (YES in S2-9), the button B15 (see FIG. 12) on the input screen G5, which is described as “additional alternative site” is selected. Then, it is determined whether or not there is a possibility of exceeding the total budget with the input destination budget. If it is determined that the total budget may be exceeded (YES in S2-12), the travel route management unit 20c searches for alternative destinations for each destination (S2-13), and again the travel plan. Is calculated (S2-7).

  On the other hand, if it is determined that there is no possibility of exceeding the total budget with the destination budget (NO in S2-12) and button B20 is selected (YES in S2-10), a travel plan input is made. finish. If button B20 is not selected (NO in S2-10), it is determined whether or not to search for an alternative place again. In this way, it is possible to register a travel plan of desired conditions.

FIG. 15 is a flowchart for explaining a method of executing guidance according to a travel plan registered by the navigation device 1a.
First, as described above, the navigation device 1a is driven, and a screen (not shown) is displayed on the display 6 asking whether or not to execute a trip according to the travel plan. And if it chooses to carry out the trip according to a travel plan, guidance will start according to the travel plan (S2-3).

  Then, a trip is executed and when a destination in one area is reached (S2-21), an operation for determining whether or not to execute the destination in the next area is awaited (S2-22). When the next destination is set and executed (YES at S2-22), guidance to the next destination is displayed on display 6. On the other hand, for example, when an operation for arriving at the last destination and ending the guidance is performed (NO in S2-22), the navigation apparatus 1 ends the guidance (S1-23).

As described above, the present embodiment has the following effects.
(1) According to this embodiment, a place that falls within the total budget of the set travel plan that is another point (place) in the same area as the area to which the destination set by the user belongs is proposed as an alternative place. I was able to do it. In other words, when creating a travel plan, an alternative place is proposed for a case where travel cannot be performed with the budget planned for the destination. Therefore, even if the budget at the destination does not fit within the preset budget, it will go to an alternative location that fits within the budget on behalf of the destination without searching for a new destination and re-registering. be able to. As a result, the navigation device 1a can realize optimum route guidance corresponding to a change in budget.

Each said embodiment can also be changed into another embodiment (another example) as follows.
The travel plan creation units 16a and 20a of the first and second embodiments are provided in the navigation devices 1 and 1a, respectively, but the navigation devices 1 and 1a are not provided with the travel plan creation units 16a and 20a and are provided outside. It is also possible to provide a mobile communication device capable of transmitting and receiving to / from the navigation center, and to transmit the functions of the travel plan creation units 16a and 20a from the navigation center as the second registration means. By doing in this way, the load of the navigation apparatuses 1 and 1a can be reduced.

  In the first or second embodiment, the navigation devices 1 and 1a are provided in the vehicle, but may be provided in other types of vehicles other than the vehicle. By doing in this way, the same effect as each above-mentioned embodiment can be acquired.

It is a schematic block diagram of the navigation apparatus of 1st Embodiment. It is a figure for demonstrating the structure of the function process part of 1st Embodiment. It is a screen figure of the guidance screen of the navigation apparatus of 1st Embodiment. It is a screen figure of the travel plan input screen of the navigation apparatus of 1st Embodiment. It is a screen figure of the alternative ground screen of the navigation apparatus of 1st Embodiment. It is a flowchart for demonstrating the registration method of the navigation apparatus of 1st Embodiment. It is a flowchart for demonstrating the effect | action of the navigation apparatus of 1st Embodiment. It is a schematic block diagram of the navigation apparatus of 2nd Embodiment. It is a figure for demonstrating the structure of the function process part of 2nd Embodiment. (A), (b), (c) is a figure for demonstrating an example of the calculation method of an alternative budget plan, respectively. It is a screen figure of the guidance screen G4 of the travel plan in consideration of the prediction error. It is a screen figure of the input screen of the navigation apparatus of 2nd Embodiment. It is a screen figure of the alternative place screen on which the budget balance and alternative place which considered the prediction error with respect to each searched destination were displayed. It is a flowchart for demonstrating the registration method of the navigation apparatus of 2nd Embodiment. It is a flowchart for demonstrating the effect | action of the navigation apparatus of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1a ... Navigation apparatus, 16b ... Alternative place proposal part as 1st memory | storage means, 16c ... Travel process management part as judgment means.

Claims (4)

In a navigation device that guides the route from the current position to the destination registered in advance,
A first storage means for storing a plurality of the destinations in advance and storing alternative destinations to which a predetermined first condition is added to each of the plurality of destinations;
Registration means for setting at least one destination from the plurality of destinations, setting a second condition for the destination together with the destination, and storing the second condition in the second storage means;
Determining means for determining whether or not the second condition for the set destination is within an allowable range;
Suggesting means for reading out and proposing an alternative place for the set destination of the first condition allowing the second condition from the first storage means when the judging means determines that the second condition is not within an allowable range; A navigation device characterized by comprising. The navigation device according to claim 1, wherein
The first condition and the second condition are business hours,
The determination means determines whether the business hours are in time,
The navigation device according to claim 1, wherein when the determination unit determines that it is not in time for the business hours, an alternative place in time for the business hours is read from the first storage unit and proposed. The navigation device according to claim 1, wherein
The first condition is a predetermined cost spent in the alternative land,
The second condition is a budget spent at the destination,
The determination means determines whether a budget for the set destination is within a predetermined allowable range,
The proposing means, when the judging means judges that the budget is not within the allowable range, reads and proposes an alternative place that falls within the allowable range from the first storage means. The navigation device according to any one of claims 1 to 3,
A navigation apparatus, comprising: a second registration unit for storing the alternative place proposed by the proposing unit in the second storage unit in association with the destination.

Images