JP2003194563A - Navigation system, apparatus and method for target retrieval, apparatus and method for cost presentation and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To retrieve a destination matched to a budget and to present required costs. <P>SOLUTION: A navigation unit 6 at a car navigation system discriminates a user's budget, and it retrieves a database so as to detect the destination matched to the discriminated budget. The navigation unit 6 displays the detected destination on a display 5. In the navigation unit 6, costs required for the running of a vehicle are found at a preset time interval. In the navigation unit 6, the total amount of the found costs or the costs per person are displayed on the display 5. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a navigation device, a destination search device, a cost presentation device, a destination search method,
Cost presentation method and program.

[0002]

2. Description of the Related Art Conventionally, when going out for travel or leisure by using a car, use books or the Internet to check the usage fees and transportation costs of various facilities, search for a destination that fits your budget, map, etc. I used to go to my destination. Also,
When multiple people pay transportation expenses, the cost per person was calculated by calculating gasoline charges and toll road charges from receipts.

[0003]

However, it takes a lot of time and effort to find a destination suitable for a budget by using a book, the Internet or the like, and therefore it is necessary to plan in advance in order. Further, it is very troublesome to calculate the cost per person from receipts such as gasoline charges and toll road charges.

Therefore, it is an object of the present invention to provide a navigation device, a destination search device, and a destination search method that can easily search for a destination that matches a budget. Another object of the present invention is to provide a navigation device, a cost presenting device, and a cost presenting method that allow the user to easily understand the cost involved. It is another object of the present invention to provide a program for easily searching for a destination and a program for easily grasping the cost consumed as a vehicle travels.

[0005]

In order to achieve the above object, a navigation device according to a first aspect of the present invention is a navigation device mounted on a vehicle for guiding a route to a destination. It is characterized by comprising a search means for searching a destination suitable for the set budget and a presentation means for presenting the destination searched by the search means to the user.

[0006] The search means includes a necessary cost calculation means for obtaining, for each of the candidate sites, a cost necessary for going to a candidate site of a destination registered in the database, and a cost calculated by the necessary cost calculation means. And a destination detection unit that detects a candidate location within the budget as a destination suitable for the budget.

A condition input means for inputting a condition for narrowing down the destination is further provided, and the search means determines whether or not each of the candidate locations matches the condition input by the condition input means. The destination detecting means may include a determining means, and the destination detecting means may detect a destination suitable for the budget from the candidate locations determined by the condition determining means to match the condition.

The above-mentioned conditions are the type of the destination, the weather, the entrance regulation of the destination, the congestion situation of the destination, the staying time at the destination,
And at least one of the desired return time.

The system further comprises cost calculation means for calculating the cost consumed by the traveling of the vehicle at preset time intervals, and cost presentation means for presenting the cost calculated by the cost calculation means to the user. May be.

The cost presenting means may present to the user either the total cost or the cost per person according to the operation of the user.

A destination searching apparatus according to a second aspect of the present invention is a presenting means for presenting to a user a searching means for searching for a destination suitable for a preset budget and a destination searched by the searching means. And a means.

A cost presenting apparatus according to a third aspect of the present invention is a cost calculation means for calculating a cost consumed as a vehicle travels at preset time intervals, and a cost calculated by the cost calculation means. And a cost presenting means for presenting to the user.

A destination search method according to a fourth aspect of the present invention is a budget determining step for determining a budget, a database in which candidate destinations are registered are searched, and the budget determined in the budget determining step. And a presentation step of presenting the destination detected by the search step to the user.

A cost presentation method according to a fifth aspect of the present invention is a cost calculation step of calculating a cost consumed as a vehicle travels at preset time intervals, and a cost calculated in the cost calculation step. And a cost presentation step of presenting to the user.

A program according to a sixth aspect of the present invention comprises a computer, a budget discriminating means for discriminating a budget,
A destination comprising a search means for searching for a destination that matches the budget determined by the budget determination means, and a presentation means for presenting the destination searched by the search means to the user. Make it function as a search device.

The program according to the seventh aspect of the present invention is such that the computer calculates the cost consumed by the traveling of the vehicle at a preset time interval, and the cost calculating means. A cost presenting device characterized by comprising a cost presenting means for presenting a cost to a user.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a car navigation system according to an embodiment of the present invention will be described with reference to the drawings.

The car navigation system according to the embodiment of the present invention has a plurality of operation modes. One of the operation modes is the cost presentation mode. In the cost presentation mode, the car navigation system provides route guidance to the destination, destination search according to the budget, and presentation of expenses (fuel cost, toll road charge, etc.) consumed as the vehicle travels. I do.

The above car navigation system is shown in FIG.
As shown in, PTT (send button) 1 and microphone 2
A speaker 3, a voice recognition unit 4, a display 5, and a navigation unit 6.

Although the voice recognition unit 4 and the navigation unit 6 are shown as separate units in FIG. 1, the same unit may fulfill the functions of both the voice recognition unit 4 and the navigation unit 6.

The PTT 1 functions as a switch for the microphone 2. The microphone 2 converts a voice input while the PTT 1 is pressed down into a voice signal and outputs the voice signal to the voice recognition unit 4. The speaker 3 converts the audio signal supplied from the navigation unit 6 into audio and outputs it.

The voice recognition unit 4 analyzes a voice signal supplied from the microphone 2 according to a program provided in advance and converts it into a signal (command) for operating the navigation unit 6. Then, the voice recognition unit 4 outputs the converted signal to the navigation unit 6. The detailed configuration of the voice recognition unit 4 will be described later.

The display 5 comprises a liquid crystal panel, a touch sensor and the like. The display 5 displays various images and messages under the control of the navigation unit 6. Further, the display 5 detects a touch operation performed on the screen with a touch sensor and outputs a signal according to the detected operation to the navigation unit 6.

The navigation unit 6 responds to the signals supplied from the voice recognition unit 4 and the display 5 and operates according to a program provided in advance. For example, the navigation unit 6 accesses an external database via the Internet or the like and acquires (downloads) information or the like used for searching for a destination. In addition, the navigation unit 6 is a VICS (Vehicle Inform
and communication system) and other systems such as teletext to provide information on traffic congestion and accidents to guide the route to the destination. Further, in the cost presentation mode, the navigation unit 6 searches for a destination according to the budget and presents the cost consumed as the vehicle travels. The detailed configuration of the navigation unit 6 will be described later.

Next, the detailed structure of the voice recognition unit 4 will be described. As shown in FIG. 2A, the voice recognition unit 4 includes a memory 41 and a CPU (Central Processi).
ng Unit) 42.

The memory 41 is a random access memory (RAM).
mory) and ROM (Read Only Memory),
A voice analysis program for analyzing voices emitted by humans, a voice recognition dictionary including information such as words and grammars, and
A signal conversion table or the like indicating the correspondence between the analyzed voice (text) and the signal for operating the navigation unit 6 is stored.

The CPU 42 analyzes the voice signal supplied from the microphone 2 according to the voice analysis program stored in the memory 41, and recognizes the voice picked up by the microphone 2 using the voice recognition dictionary. Then, the CPU 42 uses the signal conversion table stored in the memory 41 to convert the recognized voice into a signal and outputs the signal to the navigation unit 6.

Next, the detailed structure of the navigation unit 6 will be described. The navigation unit 6
As shown in FIG. 2B, the communication unit 61 and the storage unit 62.
And a reading unit 63 and a control unit 64.

The communication section 61 is equipped with an antenna and the like, and wirelessly communicates with an external system. The storage unit 62 is a RAM
And a ROM etc., and stores a navigation program for executing route guidance to a destination, a communication program for collecting information via the Internet, etc.

The reading unit 63 is a C which records map data and the like.
D (Compact Disc), DVD (Digital Versatile Dis)
c) and / or housing a recording medium such as a semiconductor memory. The reading unit 63 reads predetermined data from the map data recorded on the recording medium under the control of the control unit 64. The map data includes not only the locations of roads and buildings, but also the genres (types) of various facilities, the distinction between indoor facilities and outdoor facilities, and information about facility usage fees, regular holidays, business hours, etc. Has been.

The control unit 64 is composed of a CPU and the like, and operates according to various programs stored in the storage unit 62. For example, the control unit 64 operates according to the navigation program, controls the reading unit 63, and acquires the map data of the predetermined area. Then, the control unit 64 controls the display 5 to display a map of a predetermined area on the display 5 to provide route guidance. Also, the control unit 64 searches for a destination according to the budget in the cost presentation mode,
The expense that accompanies traveling of the vehicle is displayed on the display 5 or is output as a voice through the speaker 3.
The detailed operation of the control unit 64 will be described later.

Next, the operation of the car navigation system in the cost presentation mode will be described. First, an operation performed by the control unit 64 of the navigation unit 6 in response to an operation performed by the user of the car navigation system on the screen of the display 5 will be described.

Control unit 64 of the navigation unit 6
Responds to a predetermined operation performed by the user of the car navigation system on the screen of the display 5 to set the car navigation system in the expense presentation mode.

Then, the control section 64 starts the split mode processing shown in FIG. 3 in accordance with the program stored in the storage section 62. First, the control unit 64 determines whether to set a destination (step S101). Specifically, the control unit 64 controls the display 5 to display the selection screen shown in FIG. 4, for example.

As a result, the control section 64 allows the user to select whether or not to set the destination. Then, the control unit 64
Determines whether to set a destination based on a signal supplied from the display 5 in accordance with the user's selection.

When it is determined that the destination is not set (step S101; NO), the control section 64 performs the cost presentation process shown in FIG. 5 (step S102).

First, the control unit 64 determines the method of presenting the cost consumed as the vehicle travels (step S2).
01). Specifically, the control unit 64 controls the display 5 to display a presentation method selection screen as shown in FIG. 6A, for example.

As a result, the control section 64 allows the user to select whether to present the total cost or the cost per person. The control unit 64 determines the cost presentation method based on the signal supplied from the display 5 according to the user's selection.

Then, the control section 64 presents the cost according to the discriminated presentation method (step S202). Specifically, the control unit 64 obtains, at a preset time interval, the average fuel consumption and mileage of the vehicle, and whether or not the toll road is used, and the cost consumed as the vehicle travels. .
Further, the control unit 64 controls the reading unit 63 to acquire map data around the current position of the vehicle. Then, the control unit 6
4 controls the display 5 to display the cost in real time together with the map around the current position, as shown in FIG. 6 (b) or 6 (c), for example.

On the other hand, when it is determined that the destination is set in the processing of step S101 (step S101; YE
S), the control unit 64 sets the presentation method of the cost consumed as the vehicle travels (step S103).

Specifically, the control unit 64 controls the display 5 to display a presentation method selection screen similar to that shown in FIG. 6 (a), for example. Thereby, the control unit 64 causes the user to select whether to present the total cost or the cost per person. The control unit 64 sets the cost presentation method according to the signal supplied from the display 5 in accordance with the selection by the user.

Subsequently, the control unit 64 determines whether or not to search for the destination (step S104). In particular,
The control unit 64 controls the display 5 to display, for example, FIG.
Display a selection screen similar to.

As a result, the control section 64 allows the user to select whether or not to search for the destination. Then, the control unit 64
Determines whether or not to search for a destination based on a signal supplied from the display 5 according to the user's selection.

When it is determined that the destination is searched (step S104; YES), the control unit 64 performs the destination search process shown in FIG. 7 (step S105).

First, the control section 64 determines the budget of the user and the number of persons who bear the cost consumed by the traveling of the vehicle (step S301). Specifically, the control unit 64
Controls the display 5 to display a budget input screen as shown in FIG. 8 (a), for example.

As a result, the control unit 64 causes the user to input the total budget and the number of people, or the budget and the number of people per person. The control unit 64 determines the user's budget and the number of people who bear the cost from the input result of the user supplied from the display 5.

Next, the control unit 64 determines the genre (type) of the destination to be searched (step S302). Specifically, the control unit 64 controls the display 5 to display a genre selection screen as shown in FIG. 8B, for example.

As a result, the control unit 64 causes the user to select the genre of the destination. Then, the control unit 64 determines the genre of the destination based on the signal supplied from the display 5 according to the user's selection.

Subsequently, the control unit 64 determines whether it is necessary to consider the weather (step S303). For example, the control unit 64 controls the reading unit 63, searches the map data of the recording medium, and determines whether the facility of the determined genre includes an outdoor facility or the like. Then, when the facility of the determined genre includes an outdoor facility or the like, the control unit 64 determines that it is necessary to consider the weather. When it is determined that it is not necessary to consider the weather (step S3)
03; NO), and the control unit 64 executes step S30 described later.
The process of 6 is performed.

On the other hand, when it is determined that the weather needs to be considered (step S303; YES), the control section 64
The user is notified by a message that the weather should be considered, and it is determined whether or not the weather is considered (step S3).
04). Specifically, the control unit 64 controls the display 5 to display a selection screen as shown in FIG. 8C, for example.

As a result, the control section 64 allows the user to select whether or not to consider the weather. Then, the control unit 64
Determines whether or not to consider the weather based on the signal supplied from the display 5 according to the user's selection. When it is determined that the weather is not taken into consideration (step S304; N
O), the control unit 64 performs the process of step S306 described below.

On the other hand, when it is determined that the weather is taken into consideration (step S304; YES), the control section 64 acquires the weather information of each place (step S305). For example, the control unit 64 controls the communication unit 61, accesses an external database via the Internet or the like, and acquires weather information of each place. Further, the control unit 64 controls the communication unit 61,
The weather information of each place is acquired from other systems such as VICS and teletext.

Next, the control unit 64 determines whether or not the toll road is used (step S306). In particular,
The control unit 64 controls the display 5 to display a selection screen similar to that shown in FIG. 4, for example.

As a result, the control section 64 allows the user to select whether or not to use the toll road. Then, the control unit 64 determines whether or not to use the toll road based on the signal supplied from the display 5 according to the selection by the user. When it is determined that the toll road is not used (step S
306; NO), and the control unit 64 executes step S3 described later.
08 processing is performed.

On the other hand, when it is determined that the toll road is used (step S306; YES), the control unit 64 determines the usage pattern of the toll road (step S307). Specifically, the control unit 64 controls the display 5 to display a selection screen as shown in FIG. 9A, for example.

As a result, the control section 64 changes the toll road to
The user is allowed to select whether to use only the outward trip, only the return trip, or both round trips. Control unit 64
Determines the usage pattern of the toll road based on the signal supplied from the display 5 according to the user's selection.

Then, the control section 64 performs the first narrowing-down process using the conditions (budget, genre, weather consideration, use of toll roads) set above (step S308).

For example, the control unit 64 first determines whether or not the genre of facility or the like registered in the map data (database) of the recording medium matches the selected genre. Then, the control unit 64 detects a facility or the like that is determined to match the selected genre as a candidate destination destination.

Subsequently, when the weather is taken into consideration, the control unit 64 excludes outdoor facilities and the like in areas where the weather is rain from the detected candidate sites. In addition, the control unit 64 controls the reading unit 63 to acquire information on facility usage charges, regular holidays, business hours, etc. from the map data of the recording medium, and excludes unusable facilities, etc. from the candidate sites. .

Further, the control unit 64 obtains the cost (fuel cost, transportation cost, etc.) necessary for going to the remaining candidate sites for each candidate site. Specifically, the control unit 64 accesses the system of the vehicle to obtain the current gasoline remaining amount, determines whether or not refueling is required based on the average fuel consumption and the distance, and obtains the required fuel cost. In addition, the control unit 64 obtains a required transportation cost based on whether or not toll roads are used.

Then, the control unit 64 detects, from the remaining candidate sites, the candidate sites in which the calculated required cost is within the budget. As described above, the control unit 64 narrows down the destinations that meet the set conditions.

After that, the control unit 64 determines whether or not to consider the area information (congestion status, entrance regulation, etc.) (step S309). Specifically, the control unit 64 controls the display 5 to display a selection screen similar to that shown in FIG. 8C, for example.

As a result, the control unit 64 allows the user to select whether or not to consider the regional information. The control unit 64 determines whether or not to consider the regional information based on the signal supplied from the display 5 according to the selection by the user. When it is determined that the regional information is not considered (step S309; N
O), the control unit 64 performs the process of step S311 described later.

On the other hand, when it is determined that the regional information should be considered (step S309; YES), the control unit 64 controls the communication unit 61 to access an external database via the Internet or the like. Then, the control unit 64 acquires the regional information around each destination narrowed down in step S308 from an external database (step S310).
As a result, detailed and up-to-date information about the destination and the surrounding area of the destination can be obtained.

Subsequently, the control unit 64 determines whether or not the stay time at the destination is taken into consideration (step S311).
Specifically, the control unit 64 controls the display 5,
For example, the same selection screen as in FIG. 8C is displayed.

As a result, the control section 64 allows the user to select whether or not to consider the stay time. The control unit 64 determines whether to consider the stay time based on the signal supplied from the display 5 according to the selection by the user. When it is determined that the stay time is not considered (step S311; N
O), the control unit 64 performs the process of step S313 described below.

On the other hand, when it is determined that the stay time is taken into consideration (step S311; YES), the control section 64 determines the stay time at the destination (step S312). Specifically, the control unit 64 controls the display 5 to display a stay time input screen as shown in FIG. 9B, for example.

As a result, the control section 64 causes the user to input the staying time at the destination. The control unit 64 determines the staying time at the destination from the input result of the user supplied from the display 5.

Then, the control section 64 determines whether or not the return time is taken into consideration (step S313). Specifically, the control unit 64 controls the display 5 to display a selection screen similar to that shown in FIG. 8C, for example.

As a result, the control unit 64 allows the user to select whether or not to consider the return time. The control unit 64 determines whether or not to consider the return time based on the signal supplied from the display 5 according to the user's selection. When it is determined that the return time is not considered (step S313; N
O), the control unit 64 performs the process of step S315 described below.

On the other hand, when it is determined that the return time is taken into consideration (step S313; YES), the control section 64 determines the desired return time (step S314). In particular,
The control unit 64 controls the display 5, for example, as shown in FIG.
The same return time input screen as in (b) is displayed.

As a result, the control section 64 causes the user to input the desired return time. The control unit 64 uses the display 5
The desired return time is determined from the input result of the user supplied from.

After that, the control unit 64 determines whether or not the destination is added (step S315). Specifically, the control unit 64 controls the display 5 to display a selection screen as shown in FIG. 9C, for example.

As a result, the control unit 64 allows the user to select whether or not the destination is added. The control unit 64 determines whether or not the destination is added based on the signal supplied from the display 5 according to the selection by the user. When it is determined that the destination is added (step S315; YE
S), the control unit 64 returns to step S302.

On the other hand, when it is determined that the destination has not been added (step S315; NO), the control unit 64 determines the area information acquired in step S310, the stay time determined in step S312, and step S314. Using the desired return time, the destination candidates narrowed down by the narrowing-down processing in step S308 are further narrowed down (step S31).
6).

For example, the control unit 64 narrows down the destinations that can be reached from the stay time and the desired return time. Further, the control unit 64 uses the acquired area information to distinguish between an area (or facility) in which entry is restricted and an area (or facility) in which entry is not restricted.

Then, the control section 64 proceeds to step S316.
The result narrowed down by is presented to the user (step S31).
7). Specifically, the control unit 64 controls the display 5 to number and display the list of destinations obtained by narrowing down in order from those that match the conditions, as shown in FIG. Displays whether or not there are restrictions.

As a result, the control unit 64 causes the user to select the destination to be set. Then, the control unit 64 determines the destination selected by the user from the signal supplied from the display 5 according to the selection by the user, and sets the destination (step S318).

As described above, the control unit 64 ends the destination search process and performs the route search process of step S107 described later. The various conditions set in the above destination search processing are also used when searching for a route to the destination.

When it is determined that the destination is not searched in the process of step S104 described above (step S104; N
O), the control unit 64 performs the route condition setting process shown in FIG. 11 (step S106).

The process of step S106 is performed when the destination is set without being searched. That is, it is performed when the destination is already determined. The control unit 64 sets a condition for searching a route to a destination by executing a route condition setting process.

First, the control unit 64 determines the destination (step S401). Specifically, the control unit 64 controls the display 5 to display the destination input screen shown in FIG. 12, for example.

As a result, the control section 64 causes the user to directly input the already determined destination. Then, the control unit 64 determines the destination from the input result of the user supplied from the display 5.

Next, the control unit 64 determines whether or not to use a toll road in the same manner as in step S306 of the destination search process (step S402). When it is determined that the toll road is not used (step S402; NO), the control unit 64 performs the process of step S404 described later.

On the other hand, when it is determined that the toll road is used (step S402; YES), the control section 64 determines the usage pattern of the toll road similarly to step S307 of the destination search process (step S403).

Subsequently, the control unit 64 determines whether or not to consider the area information around the destination, similarly to step S309 of the destination search processing (step S404). When it is determined that the regional information is not considered (step S40)
4; NO), and the control unit 64 executes step S406 described later.
Process.

On the other hand, when it is determined that the regional information is taken into consideration (step S404; YES), the control unit 64 acquires regional information around the destination in the same manner as step S310 of the destination search process (step S405). .

Further, the control section 64 determines whether or not the stay time at the destination is taken into consideration as in step S311 of the destination search process (step S406). When it is determined that the stay time is not considered (step S406;
NO), the control unit 64 performs the process of step S408 described below.

On the other hand, when it is determined that the stay time is taken into consideration (step S406; YES), the control unit 64 determines the stay time at the destination in the same manner as step S312 of the destination search process (step S407). .

Then, the control unit 64 determines whether or not the return time is taken into consideration, as in step S313 of the destination search process (step S408). When it is determined that the return time is not considered (step S408; NO), the control unit 64 ends the route condition setting process.

On the other hand, when it is determined that the return time is taken into consideration (step S408; YES), the control section 64 determines the desired return time in the same manner as step S314 of the destination search process (step S409). With the above, the control unit 6
4 finishes the route condition setting process and performs the route search process of step S107 described below.

In the process of step S107, the control unit 64 controls the reading unit 63 to acquire the map data of the recording medium. Then, the control unit 64 uses the acquired map data to search for a route that meets various conditions set in the above-described destination search process and / or route condition setting process (step S107).

Then, the control section 64 presents the searched route to the user (step S108). In particular,
The control unit 64 controls the display 5 to display a list of routes.

As a result, the control unit 64 causes the user to select the route to the destination. Then, the control unit 64
The route selected by the user is determined by the signal supplied from the display 5 according to the user's selection, and the route is set (step S109).

After that, the control unit 64 executes route guidance processing to the set destination by the set route.
In addition, the control unit 64 obtains an average fuel consumption and a mileage of the vehicle, and whether or not the toll road is used, at predetermined time intervals, and the cost consumed by the traveling of the vehicle.
Then, the control unit 64 presents to the user the cost to be spent with the traveling of the vehicle as shown in FIG. 6B or 6C according to the presentation method set in step S103 (step S110). .

As described above, the control unit 64 obtains the cost required to reach the destination and searches for the destination and route according to the budget. Can be easily searched and set.
In addition, since the cost consumed with the traveling of the vehicle is displayed on the display 5, the user can easily understand the cost.

Next, the operation performed by the control unit 64 of the navigation unit 6 in response to the voice input from the microphone 2 by the user pressing the PTT 1 will be described.

The operation performed by the control unit 64 in response to a voice is
The operation is substantially the same as that described above. However, the control unit 6
Instead of controlling the display 5 to display a message, a cost, etc., 4 outputs an audio signal indicating the message, the cost, etc. to the speaker 3.

Explaining step S101 described above as an example, the control unit 64 does not display the selection screen shown in FIG. 4 on the display 5, but an audio signal indicating a message "Do you want to set a destination?" Is output to the speaker 3. As a result, the speaker 3 outputs the voice "Do you want to set the destination?".

The user presses PTT1 and "sets" or "does not set" for the output message.
Says to microphone 2. Voice recognition unit 4
Analyzes the voice input from the microphone 2 and converts it into a signal for operating the navigation unit 6. Then, the voice recognition unit 4 outputs the converted signal to the control unit 64 of the navigation unit 6.

The control unit 64 determines whether to set the destination based on the signal supplied from the voice recognition unit 4.

As described above, when the display 5 is used except that the information presented to the user from the control unit 64 is output by voice and the user responds to the output information by voice. Is substantially the same as

In the above case as well, the control unit 64 obtains the cost required to reach the destination and searches for the destination and route according to the budget. Therefore, the user can find the destination and route according to the budget. Can be easily searched and set.
Further, since the cost consumed by the traveling of the vehicle is notified by voice, the user can easily understand the cost. Further, when using voice, the user only has to press the PTT 1 and speak into the microphone 2, so the operation is very simple. For this reason,
The user can safely search for the destination even while the vehicle is traveling.

Both the processing using the display 5 and the processing using voice may be performed at the same time. Specifically, the control unit 64 displays a message on the display 5 and outputs an audio signal indicating the message to the speaker 3. As a result, the message displayed on the display 5 is also output as voice. Then, the control unit 64 may execute the above-described processing in response to either the signal supplied from the display 5 or the signal supplied from the voice recognition unit 4.

Further, the control section 64 may display a display switching button for switching the display method of the cost together with the cost as shown in FIG. 13, for example. The control unit 64 responds to a signal supplied from the display 5 by touching the display switching button by the user, and changes the display method of the cost from the total cost to the per-capital cost, or from the per-capital cost to the total cost. You may switch.

Further, the control unit 64 obtains not only the one-way cost consumed by the traveling of the vehicle but also the round-trip cost required when the vehicle returns from the current position where the vehicle is traveling, and presents it to the user. You may do it.

Further, the control unit 64 responds to the signal supplied from the display 5 by the user touching the display switching button, and displays the cost display method such as the total amount for one way, the one-way cost per person, and the round trip. , And the round trip cost per person may be switched in this order.

Further, the control unit 64 determines that the remaining amount of gasoline is
When the amount of gasoline required to reach the destination is lower, a message indicating that refueling is necessary may be displayed on the display 5 or may be output as voice through the speaker 3. Specifically, the control unit 64 accesses the vehicle system at a preset time interval and acquires the remaining amount of gasoline. Then, the control unit 64 determines whether or not the acquired remaining amount is less than the required amount for reaching the destination, and when it is determined that the remaining amount is less than the required amount, displays the above message to the user. May be presented.

Further, as conditions for retrieving the destination and the route, it is possible to further set whether or not to have a meal, whether or not to stay. Also in this case, the control unit 64
Acquires the average cost of meals and the average accommodation cost from an external database, and searches for a destination and route that match the budget.

Further, when it is determined from the regional information around the destination that the facility at the destination is restricted in entry or very crowded, the control unit 64 controls the reading unit 63. You may make it search map data of a recording medium and show another facility etc. around a destination to a user.

Further, when the control unit 64 determines that it was caught in a sudden traffic jam from the traffic jam / accident information supplied from another system during route guidance, and further it is judged that it is not time to return home. Alternatively, another route may be searched and presented to the user. This allows the user to reset a new route if he or she is caught in a sudden traffic jam.

Further, the control unit 64 determines whether or not to save the search result of the destination presented to the user, and when it is determined to save the search result, controls the storage unit 62 to save the search result. Good.

In the above embodiment, the voice recognition system provided with the PTT (send button) 1 is shown.
It may be a voice recognition system of a voice sensitivity sensing type that does not include T1. In this case, the user does not need to operate the PTT1 and can input a command by just uttering a voice.

Further, the apparatus of the present invention does not need to use a dedicated apparatus and can be realized by an ordinary computer. For example, a program and data for causing a computer to execute each of the processes described above are recorded on a recording medium (F
D, CD-ROM, DVD, semiconductor memory, etc.) to be recorded, distributed, installed, and executed on the OS to realize the device of the present invention. Further, the above program and data may be stored in a disk device or the like included in a server device on the Internet, and may be downloaded to a computer, for example, by being superimposed on a carrier wave.

[0115]

As is apparent from the above description, according to the present invention, it is possible to easily search for a destination suitable for a budget. Further, according to the present invention, it is possible to easily grasp the cost involved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a car navigation system according to an embodiment of the present invention.

2A is a configuration diagram of a voice recognition unit that constitutes the car navigation system of FIG. 1, and FIG.
FIG. 3 is a configuration diagram of a navigation unit that constitutes a car navigation system.

FIG. 3 is a flowchart showing splitting mode processing performed by a control unit included in the navigation unit of FIG. 2 (b).

FIG. 4 is a step S1 that constitutes the split mode processing of FIG.
It is a figure which shows the selection screen which the display which comprises a navigation unit displays by the process of 01.

5 is a flowchart showing a cost presentation process that constitutes the split mode process of FIG.

6A is a diagram showing a presentation method selection screen displayed on the display in the expense presentation processing of FIG. 5, and FIGS. 6B and 6C are diagrams showing a expense presentation method.

FIG. 7 is a flowchart showing a destination search process which constitutes the split mode process of FIG.

8A is a diagram showing a budget input screen displayed by the display in the destination search process of FIG. 7, and FIG.
It is a figure which shows the genre selection screen which a display shows, (c) is a figure which shows the selection screen which a display shows.

9A is a diagram showing a selection screen displayed on the display in the destination search process of FIG. 7, and FIG. 9B is a diagram showing a stay time input screen displayed on the display.
(C) is a figure which shows the selection screen which a display shows.

10 is a diagram showing a destination search result displayed on the display in the destination search process of FIG. 7.

11 is a flowchart showing a route condition setting process which constitutes the split mode process of FIG.

12 is a diagram showing a destination input screen displayed on the display in the route condition setting process of FIG.

FIG. 13 is a diagram showing a method of presenting a cost displayed on a display.

[Explanation of symbols]

1 PTT (send button) 2 microphone 3 speakers 4 Voice recognition unit 5 display 6 Navigation unit 41 memory 42 CPU 61 Communications Department 62 storage 63 Reader 64 control unit

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification symbol FI theme code (reference) G09B 29/00 G09B 29/00 AF 29/10 29/10 AF term (reference) 2C032 HB02 HB23 HB24 HB25 HC08 HC14 HC16 HC27 HC31 HD04 HD16 HD23 2F029 AA02 AB01 AB07 AB13 AC02 AC13 AC16 AC18 5B075 ND06 PP03 PP07 PR08 5H180 AA01 BB04 BB13 CC12 FF03 FF13 FF22 FF25 FF33 FF40

Claims (12)

[Claims] 1. A navigation device mounted on a vehicle for guiding a route to a destination, which comprises a search means for searching a destination that meets a preset budget, and a destination searched by the search means. A navigation device comprising: presentation means for presenting to a user. 2. The retrieving means, the requisite cost calculating means for deriving, for each of the candidate locations, a requisite cost for going to the destination candidate location registered in the database, and the requisite cost calculating means. The navigation device according to claim 1, further comprising: a destination detection unit that detects a candidate place whose cost is within the budget as a destination that meets the budget. 3. A condition input means for inputting a condition for narrowing down a destination is further provided, and the search means determines whether or not each of the candidate locations matches the condition input by the condition input means. 3. The condition detecting means for controlling the destination according to claim 2, wherein the destination detecting means detects a destination suitable for the budget from among the candidate locations judged by the condition determining means to match the condition. Navigation device according to. 4. The conditions include destination type, weather, destination entry restrictions, destination congestion, staying time at the destination,
The navigation device according to claim 3, further comprising at least one of a desired return time and a desired return time. 5. A cost calculation means for calculating a cost consumed as a vehicle travels at preset time intervals, and a cost presentation means for presenting the cost calculated by the cost calculation means to a user. The navigation device according to any one of claims 1 to 4, further comprising: a navigation device. 6. The navigation device according to claim 5, wherein the cost presenting means presents to the user either the total cost or the cost per person according to the operation of the user. . 7. A search means for searching a destination suitable for a preset budget, and a presenting means for presenting the destination searched by the search means to a user. Destination search device. 8. A cost calculation means for calculating a cost consumed as a vehicle travels at preset time intervals, and a cost presentation means for presenting the cost calculated by the cost calculation means to a user. A cost presentation device characterized by being configured. 9. A budget discriminating step of discriminating a budget, a searching step of searching a database in which candidate destinations are registered, and detecting a destination suitable for the budget discriminated in the budget discriminating step, A destination search method comprising: a presentation step of presenting the destination detected in the search step to a user. 10. The cost consumed for traveling a vehicle,
A cost presenting method, comprising: a cost calculating step obtained at preset time intervals; and a cost presenting step of presenting the cost obtained in the cost calculating step to a user. 11. A computer is provided with budget discriminating means for discriminating a budget, search means for retrieving a destination that matches the budget discriminated by the budget discriminating means, and destinations retrieved by the retrieving means for the user. A program for functioning as a destination search device, characterized by comprising: 12. A cost calculation means for calculating a cost consumed by a vehicle traveling at a preset time interval by a computer, and a cost presentation means for presenting the cost calculated by the cost calculation means to a user. And a program for functioning as a cost presentation device.