JP3204037B2 - Car navigation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a route search type vehicle-mounted navigation system for calculating a short time optimal route by performing a route search from a departure point or a current position to a destination.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication Nos. Hei 2-17406 and Hei 5-173479 disclose such a vehicle-mounted navigation device. However, in this conventional example, only two types of route selection, the shortest route and the cost priority, can be selected based on the past traveling history and fuel efficiency data. For this reason, it has not been possible to present an optimal traveling route or traveling plan to a driver or a passenger. In addition, Japanese Patent Application Laid-Open No. 5-23390
No. 7 proposes a toll road toll collection system, but the onboard automatic toll collection electronic device corresponding to this system is separate from the onboard navigation device, and it is costly to mount two types of onboard electronic devices. Difficult both in terms of space and space. Further, when traveling on a toll road when a route is guided by the navigation device, data relating to payment of the toll by the toll collection electronic device cannot be used in the navigation device.

It is an object of the present invention to provide an in-vehicle navigation device that uses a traveling history related to toll road traveling to select an optimal route in a detailed manner.

[0004]

According to the present invention, there is provided a road map information storing means for storing road map information, a destination setting means for setting a destination of a vehicle, and a departure place or a present place. The present invention is applied to an in-vehicle navigation device having a route search means for performing a route search up to and calculating a shortest optimal route. The above object is to provide reading means for reading travel history information of a toll road recorded on a portable storage medium, determining means for determining whether a toll road is included in the optimal route, and A toll road travel plan calculating means for calculating a travel plan of a toll road included in the optimal route based on the read travel history information when it is determined that the toll road is included in the optimal route. It is achieved by doing.
In the portable storage medium according to the second aspect, cash voucher data is recorded so as to function as a prepaid card, and the travel history information includes toll road toll payment history and cash voucher data. Then, based on the toll road toll payment history, toll estimating means for estimating the toll on the toll road included in the optimal route, and when the toll on the toll road estimated by the toll estimating means exceeds the gold note data. Warning means for warning. In the portable storage medium of claim 3, credit data is recorded so as to function as a credit card in addition to the voucher data, and the payment history includes a history of payment of toll road tolls by a prepaid payment method and a credit payment. When the number of payments by the credit payment method is equal to or more than a predetermined value, including the history of payment by the payment method, the warning by the warning means is prohibited even if the toll on the toll road estimated by the toll estimation means exceeds the cash voucher data. Warning prohibition means is provided. The on-vehicle navigation device according to claim 4, further comprising: a predicted traffic section calculating means for calculating a predicted traffic section that can be driven by the voucher data; a traveling plan; the estimated toll; and a display means for displaying a list of the predicted traffic sections. Have. Claim 5
The route search means calculates the passage time of a predetermined section of a general road on the basis of a traveling history peculiar to a vehicle, and calculates the passage time of a predetermined section of a toll road based on the traveling history of a driver. The route search means according to claim 6 is a frequency calculation means for calculating a frequency of traveling on a toll road based on a personal toll road travel history recorded in a portable storage medium, and when the traveling frequency of the toll road is high. Two route calculation means for performing two types of route search calculations, a route search calculation using a toll road and a route search not using a toll road, a display means for displaying the calculated two optimal routes, and two systems. Selecting means for selecting any one of the optimum routes, and the in-vehicle navigation device includes a route guiding means for guiding a route on one of the optimum routes selected by the selecting means. The frequency calculating means of claim 7 includes total sum calculating means for calculating a sum of a difference between a current date and time and a date and time of travel on a toll road included in a personal toll road travel history recorded in the portable storage medium. The two-path operation means performs two types of path search operations, that is, a path search operation using a toll road and a path search operation not using a toll road, when it is determined that the sum is equal to or larger than a predetermined value. . The display means of claim 8 is:
The required time of the two optimal routes, the toll road toll, and the read voucher data are displayed.

[0005]

[Action]

-Claim 1-When a toll road is included in the optimal route, a travel plan of the toll road is calculated based on the read travel history information. -Claim 2-The warning unit warns when the toll on the toll road estimated by the toll estimating unit exceeds the cash voucher data. -Claim 3-When the number of payments in the credit payment method is equal to or more than a predetermined value, warning by the warning means is prohibited even when the estimated toll on the toll road exceeds the voucher data. -Claim 4-A list of travel plans, estimated tolls, and predicted travel sections in which travel is possible using the voucher data is displayed on the display means. -Claim 5-A predetermined section passing time of a general road is calculated based on a traveling history specific to a vehicle, and a predetermined section passing time of a toll road is calculated based on a driving history of an individual driver. -Claim 6-When the traveling frequency of a toll road is high, two types of route search computations, a route search using a toll road and a route search not using a toll road, are performed, and two optimal routes are displayed. When one of the two optimal routes is selected, route guidance is performed on the selected one of the optimal routes. -Claim 7-Toll roads are frequently used when the sum of the difference between the current date and time and the travel date and time of the toll road included in the personal toll road travel history recorded in the portable storage medium is equal to or greater than a predetermined value. It is determined. -Claim 8-The required time of the two optimal routes, the toll road toll, and the read voucher data are displayed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an in-vehicle navigation device according to the present invention will be described with reference to FIGS. FIG. 2 shows an example of an automatic toll collection system installed at a tollgate on a toll road, which is an environment in which the in-vehicle navigation device is used. Sign A
Indicates the type of tollgate or check barrier, for example, a gate of an automatic toll collection system. The antennas B1 and B2 are used for communicating various information between a passing vehicle and a roadside processing device E described later, and are installed on a roof R of a tollgate. The vehicle separator / stepping plate C is used to determine the number of axles of the passing vehicle and to determine whether or not the vehicle is a towing vehicle. The camera D is used to determine the number of axles, and also records vehicles that have successfully communicated and vehicles that have failed. The roadside processing device E is connected to a center computer (not shown), executes various processes based on the various types of information exchanged, and stores various types of information exchanged with the vehicle. The display unit F displays, as a result of communication between the vehicle and the roadside processing device E, various information such as toll information, instructions from the roadside to the passing vehicle, and road information.

FIG. 1 is a diagram showing an embodiment of a vehicle-mounted navigation device according to the present invention. 1 is CPU, 2 is ROM, 3 is RA
M, and the CPU 1 is connected to various devices via the interface 4. The GPS sensor 5 receives a signal from the orbiting satellite and outputs a position signal corresponding to the current position of the vehicle. The distance sensor 6 outputs a signal proportional to the amount of rotation of the tire, and the direction sensor 7 outputs a direction signal corresponding to the traveling direction of the vehicle. The input device 8 is for inputting a departure place, a destination, and the like, and is an operation member including, for example, a joystick. From the input device 8, a command for route search processing, a command for route guidance, and the like are performed. The road map storage memory 9 is a CD-ROM read by a CD-ROM driver.
A memory for temporarily storing the map information stored in the storage device, and the image display unit 10 is composed of a liquid crystal display or the like, and displays a road map, a running locus, an optimum route, and the like under the control of the display control device 11.

[0008] Reference numeral 12 denotes an IC in which a toll road driving history is recorded.
Card (portable storage medium), 13 is the IC card 12
Is a data reading device for reading the running history recorded on the IC card 12 with the card reader inserted. FIG. 3 shows an example in which the data reader 13 is configured as an in-vehicle communication unit 100. The in-vehicle communication unit 100 includes a reading unit (not shown) inside the main body, and includes a slot 101 into which the IC card 12 is inserted, and a plurality of keys. Operating unit 102, a display unit 103 for displaying various information, and a communication antenna 104
, A speaker 105, and an indicator 106.

The toll road running history recorded on the IC card 12 includes the following information. (1) Name of the toll road that ran (2) Section of the toll road that ran (3) Date and time of traveling on the toll road (4) Toll paid by the prepaid payment method (5) Credit (postpaid) payment (6) Name of service area used (7) Break time at service area used (8) Name of parking area used (9) Break time at parking area used (10) Admission (11) Name of the exited interchange

The processing procedure of the first embodiment will be described with reference to FIGS. The first embodiment has the following functions. (1) Search for the optimal route that arrives from the departure place (current location) to the destination in the shortest time. (2) If there is a toll road on the optimum route, the toll road running history peculiar to the person who is currently driving the vehicle is read from the IC card 12, and an individual running plan is set based on the running history.

FIG. 3 shows a program which is started when a route search function is instructed from the input device 8. In step S1, a display prompting input of a destination is displayed on the display unit 102. When a destination is input, step S2 is performed. Searches for the optimal route that takes the shortest time from the current location to the destination. Here, the required times A1 and A2 for passing through a general road section and a toll road section when a plurality of routes from the current position to the destination are driven at legal speeds are calculated, and the route having the shortest total required time A is selected. I do. These required times A1,
A2, the total required time A is temporarily stored in the RAM3. The road type and the legal speed can be read out based on the road map data stored in the memory 9.

In step S3, it is determined whether or not the toll road section is included in the selected route, and if affirmative, the process proceeds to step S4. In step S4, the IC card 12 is
It is determined whether or not it has been inserted into. If a toll road section is not included, the process proceeds to step S13. Step S13
In step S2, the general road section required time A1 calculated for the general road is read from the RAM 3,
1 is stored in the RAM 3 as the selected section passage required time A, and the processing program is terminated. When the IC card 12 is not inserted, the process also proceeds to step S13. In this case, the total value of the required time A1 for passing through the general road section calculated for the general road and the required time A2 for passing through the toll road calculated for the toll road in step S2. Is stored in the RAM 3 as the required passage time A for the selected section, and the processing program is terminated.

[0013] The IC card 1 includes a toll road section.
2 is inserted, the process proceeds to step S5, and IC
The running history is read from the card 12. The driving history used here is (1) the name of the interchange (IC) that entered, (2) the name of the parking area (PA) or service area (SA) that was used, (3) the name of the interchange that participated, and (4) the name of the interchange that entered. Transit time from the interchange to the parking area or service area (5) Rest time in the parking area or service area (6) Transit time from the parking area or service area to the next parking area or service area (7) Parking area or Transit time from the service area to the entered interchange (8) This is the transit time from the entered interchange to the exited interchange.

In step S6, it is determined whether or not the travel history has been read from the IC card 12. If the result is negative, the process proceeds to step S13. In this case, the required time A1 for passing through a general road and the required time A2 required for passing through a toll road section calculated in step S2.
Is read from the RAM 3 and re-stored in the RAM 3 as the required route required time A, and the route search processing program is terminated.

When the running history is read, the process proceeds to step S7, where the latitude and longitude of the entrance interchange, parking area or service area, and exit interchange are read from the map coordinate data in the road map memory 9, and the distance of each section is calculated. In step S8, based on the passage time of each section in the travel history read in step S5 and the distance of each section calculated in step S7, (1) average traveling speed B (2) average continuous traveling distance C (3) The average rest time D is calculated.

In step S9, based on the average continuous traveling distance C, a resting place on the toll road selected as the optimum route, that is, a parking area or a service area is selected. In step S10, a rest time E in the parking area or service area selected in step S9 is selected based on the average rest time D. In step S11, the required toll road section transit time F is calculated based on the average traveling speed B and the average rest time E, and in step S12, the general road section transit time A1 and the toll road section transit time F are added. Then, the selected route transit time is calculated, an individual travel plan is set, and the optimum route selection result incorporates the selected route transit time and the individual travel plan and temporarily stored in the RAM 3.

When the optimum route is selected as described above, the route selection program is deleted from the main memory of the CPU 1, and the route guidance program is read into the main memory. In the route guidance program, various information for route guidance is imaged while sequentially comparing the current vehicle position calculated based on signals from the GPS sensor 5, the distance sensor 6, and the direction sensor 7 with the selected route stored in the RAM 3. The information is displayed on the display unit 10 or guided by voice.

According to the first embodiment, the individual toll road travel plan can be set using the toll road travel history of the driver and the individual passenger, so that the driver can easily travel along the route. Becomes possible. By recording the toll road toll collection data together with the travel history on the IC card 12, the in-vehicle navigation device capable of setting an individual traveling plan can be used also as the in-vehicle device for automatic toll collection, and a cost-effective in-vehicle device can be provided.

-Second Embodiment- A second embodiment will be described with reference to FIGS. FIG. 6 is a block diagram of a second embodiment of the on-vehicle navigation device. The same parts as those in FIG. 1 are denoted by the same reference numerals, and the differences are mainly described. Reference numeral 14 denotes an audio display unit, and reference numeral 15 denotes an amplifier that amplifies a warning signal output from the CPU 1. Also 12
Is an IC card in which a toll road travel history is recorded in the same manner as in the first embodiment, but has a function as a prepaid card in the second embodiment. The prepaid card means that the IC card 12 has a function as a cash voucher, and each time a toll is paid, the current remaining amount (hereinafter referred to as cash voucher data)
This is a payment method in which the amount deducted from is recorded on the IC card 12 as new voucher data, and is a so-called prepaid card payment method. Therefore, the voucher data is also recorded on the IC card 12. Other configurations are the same as those of the first embodiment except for a processing program described below.

The processing procedure of the second embodiment will be described with reference to FIGS. The second embodiment has the following functions. (1) Search for the optimal route that arrives from the departure place (current location) to the destination in the shortest time. (2) If there is a toll road on the optimal route, IC card 1
The traveling history and the bill data relating to the toll road toll are read from 2, and when traveling on the toll road of the selected route, it is determined whether the current bill data is sufficient or not, and a warning is issued when there is not enough.

FIGS. 7 and 8 show a toll estimation program for the selected optimum route. After executing the route selection program as shown in FIGS. 3 and 4, the fee estimation program stored in the ROM 2 is read by the CPU 1. Step S2
At 1, the selected toll road section is read from the route selection result stored in the RAM 3 and the toll payment history data is read from the IC card 12. In step S22, in order to determine whether toll payment data for the same section as the selected toll road section is recorded on the IC card 12,
The charge payment history data read from the IC card 12 is searched. If there is toll payment data for the same section as the selected toll road section, the process proceeds to step S23, where the toll payment data for the same section as the selected toll road section is read and stored in the RAM 3 as an estimated toll road section.

The process proceeds from step S23 to step S29, and if it is determined that the estimated fee is larger than the voucher data recorded on the IC card 12, a warning at the voice display unit 14 or the image display unit 10 is displayed at step S30. And the shortage are notified, and the charge estimation program ends.

If toll payment data for the same section as the selected toll road section is not recorded on the IC card 12,
In step S24, from the toll payment data recorded on the IC card 12, the toll road history G equivalent to the toll road included in the selected route is read.
This history G is a fee from the entrance interchange to the exit interchange of the toll road. Here, the equivalent toll road is, for example, a toll road belonging to an equivalent road management corporation. Therefore, the travel history data includes the name of the corporation that manages the toll road or information indicating the name of the corporation.

In step S25, the distance H between the entrance and exit interchanges in the read travel history is calculated from the road map data. Next, in step S26, the distance data I of the selected section calculated by the route selection program is stored in the RAM.
3 and the fee G per unit distance is calculated by dividing the fee G between the entrance and exit interchanges, which is the fee payment history, by the distance H in step S27. Further, in step S28, the estimated fee of the selected section is calculated as I × G / H
And the process proceeds to step S29. Estimated fee is IC
If it is larger than the note data of the card 12, step S
At 30, a warning of a shortage of a charge is issued, and the shortage amount is notified. Then, the fee excess / deficiency information and the shortfall amount are stored in the RAM 3 and the process is terminated.

According to the second embodiment, the driver is informed of the excess or deficiency between the voucher data of the pre-bay card 12 and the toll before the traveling on the toll road, together with the warning. It is possible to prevent unpaid payment at the automatic toll collection office due to mistakes.

Third Embodiment The processing procedure of the third embodiment will be described with reference to FIGS. In the third embodiment, the IC card 12 supports three types of payment methods: a prepaid payment method, a credit (postpaid) payment method, and a prepaid / credit (postpaid) mixed payment method.
The prepaid payment method means that the IC card 12 has a function as a cash voucher, and the cash voucher data deducted from the cash voucher data every time a toll is paid is used as new voucher data.
This is a payment method recorded on the card 12, which is a so-called prepaid card payment method. The credit payment method is a payment method in which a toll is automatically deducted from a bank account specified at a later date, and is a so-called credit card payment method. Prepaid priority prepaid /
The credit mixed payment method is a method in which a toll is paid by a prepaid method irrespective of the amount of voucher data, and the shortage is paid by a credit payment method when shortage occurs.
Credit data such as the identification number of the card holder is recorded on the credit card IC card 12.

The third embodiment has the following functions. (1) Search for the optimal route that arrives from the departure place (current location) to the destination in the shortest time. (2) If there is a toll road on the optimal route, IC card 1
From 2, the travel history and the voucher data relating to the toll road toll are read. (3) If there are many prepaid payment methods according to the charge payment history, the payment is fixed to the prepaid payment method. (4) When the payment method is fixed to the prepaid payment method, it is determined whether there is no excess or deficiency in the current voucher data when traveling on the toll road of the selected route. Warning is prohibited in the credit payment method.

FIGS. 9 and 10 show a toll payment method selection program. After the execution of the route selection program, the fee payment method selection program stored in the ROM 2 is read into the CPU 1 and the selection of the fee payment method is started. Step S
At 41, all data of the charge payment history is read from the IC card 12. In step S42, the number of prepaid payments J is calculated, and in step S43, the number of credit payments K is calculated by subtracting the number of prepaid payments J from the total number of payment data. In step S44, it is determined whether the ratio J / K of the number of prepaid payments J and the number of credit payments K is equal to or smaller than a predetermined value (for example, 1/4). The payment method is stored in the RAM 3 as the credit mixed payment method. If it is not less than the predetermined value, in step S46, only the prepaid payment is fixed, and the payment method is set to RA.
Store it in M3.

When the payment method is selected in this way, the fee estimation program shown in FIGS. 7 and 8 can be changed as follows. Steps S21 to S28 are the same processing, and steps S29 and S30 in FIG.
Is changed as in steps S29A and S30A of FIG. In step S29 of FIG. 8, when the estimated fee is larger than the cash voucher data, a warning is issued in step S30 and the shortage amount is displayed by voice or image. In step S29A,
Only when the payment method is fixed to the prepaid payment method in step S46 of FIG. 9, a warning and a shortage display are performed in step S30 when the cash note data is insufficient. In step S30A, the display unit displays the traffic section using the prepaid payment method and the traffic section using the credit payment method, and displays a mark at the switching point of the payment method.

FIG. 11 shows a display example of the image display unit 10 in the third embodiment. (1) The toll road section of the selected optimum route is from the Atsugi interchange to the Kyoto interchange. (2) Atsugi The travel time from the interchange to the Hamamatsu parking area is 2 hours, and the time from the Hamamatsu parking area to the Kyoto interchange is 2 hours 30 minutes. (3) The break time in the Hamamatsu parking area is 30 minutes. (4) It shows that the toll of 5000 yen from the Atsugi interchange to the Sekigahara interchange is paid by the prepaid payment method, and that the 3000 yen from the Sekigahara interchange to the Kyoto interchange is paid by the credit payment method. The double circle indicates a point at which the payment method is switched from the prepaid payment method to the credit payment method.

Fourth Embodiment A fourth embodiment will be described with reference to FIGS. FIG.
FIG. 9 is a block diagram of a fourth embodiment of an in-vehicle navigation device. The same parts as those in FIG. 1 are denoted by the same reference numerals and differences will be mainly described. Reference numeral 16 denotes a timer for measuring the current date and time. Reference numeral 17 denotes an attribute information memory, which stores data indicating the date and time when the vehicle traveled on a predetermined road section and the required time required to pass. Specifically, it is stored as data in which a road section is associated with a coefficient indicating a required transit time. The attribute information memory 7 can use a RAM, and is updated with the latest data sequentially as the vehicle travels. Other configurations are the same as those of the first embodiment except for a processing program described below.

The processing procedure of the fourth embodiment will be described with reference to FIGS. The fourth embodiment has the following functions. (1) Search for the optimal route that arrives from the departure place (current location) to the destination in the shortest time. (2) If there is a toll road on the optimal route, IC card 1
From 2, the driving history regarding the toll road toll is read. (3) When the sum of the difference between the current date and time and the payment date and time of each toll payment history is equal to or less than a predetermined value, the toll road is prioritized to select a route. Two routes that do not use a road are selected. (4) When selecting a route on a general road, attribute information such as a predetermined section of the travel history and a required time and date and time of passage is used.

After the execution of the route selection program, the selected route condition switching program shown in FIG.
Read into PU1. In step S61, the timer 1
6, the current date and time are read, and in step S62, all data of the charge payment history is read from the IC card 12. In step S63, the total sum L of the difference between the current date and time and each fee payment date and time data is calculated. In step S64, it is determined whether the total sum L is equal to or less than a predetermined value. If it is determined that the total L is equal to or less than the predetermined value, the process proceeds to step S65, where information indicating that the route search is performed with priority given to the toll road is stored in the RAM 3, and it is determined that the total L exceeds the predetermined value. In step S66, information indicating that a route search is to be performed to select two routes, a toll road priority route and a general road route that does not use a toll road, is stored in the RAM 3.

FIG. 14 shows a route selection program according to the fourth embodiment. In step S81, a display prompting the user to input a destination is displayed on the display unit 10. When the destination is input, the route selection method determined in steps S65 and S66 is read from the RAM 3 in step S92. In step S82, regardless of the route selection method read from the RAM 3, a toll road is preferentially searched for an optimal route that requires the shortest time from the current position to the destination in the same manner as in step S2 (FIG. 4). Time required for toll road section A2
Selects the shortest route. The required time A2 is temporarily stored in the RAM 3 as the route required time A.

In step S83, it is determined whether or not the route is to be preferentially selected for the toll road. If not, the driving history of the ordinary road is read from the attribute information memory 17 in step S91. For example, the required time, travel date and time, day of the week, etc. of a predetermined traffic section are read. In step S84, the shortest route selection for traveling to the destination using a general road that does not use a toll road is performed. That is, in the same manner as in step S2 (FIG. 4), the optimum route from the current position to the destination is searched for the shortest time using only ordinary roads. The shortest time route is selected using the travel history read in step S91 and taking into account the travel time zone and the time required to pass through the section of the day of the week. The required time A1 for passing through a general road section is RA
It is stored in M3.

When step S83 is affirmative, in step S85, an individual driving plan is set by the same processing as in steps S3 to S12, and step S86 is performed.
In, the fee payment method is determined by the same processing as in steps S41 to S46. In step S87, these individual driving plans and toll payment methods are shown in FIG.
Are displayed on the image display unit 10 as in the display example of (1). Then, in step S88, when the traveling plan giving priority to the toll road and the traveling plan only for the general road are displayed, the image display unit 10 and the voice display unit 14 prompt the user to select which route. Thereafter, FIG. 1 stored in the CPU 1
4 program is erased and the route guidance program is stored in ROM
2 to the CPU 1 to execute a process of guiding the vehicle according to the set optimal route as shown in step S89.

According to the fourth embodiment, it is determined whether the driver frequently uses the toll road. If the driver frequently uses the toll road, the optimum route is preferentially used so as to preferentially use the toll road. It is possible to search for an optimal route only on ordinary roads, and to provide a route according to the situation to the driver. In addition, when searching for a route only on a general road, the required section passage time is taken into account for each passing time zone and each day of the week based on the traveling history, so that more precise route selection is possible.

In the above embodiment, the IC card 12 is used for the portable storage medium, and the CPU 1 is used for the route search means, the judgment means, the charge estimation means, the warning prohibition means, the prediction section calculation means,
The image display unit 10 constitutes a display unit, and the audio display unit 14 and the image display unit 10 constitute a warning unit.

[0039]

【The invention's effect】

(1) According to the first aspect of the present invention, the individual toll road travel plan can be set by using the toll road travel history of each driver or passenger, so that the driver can travel on a reasonable route. Become. (2) According to the second aspect of the present invention, before traveling on a toll road, the degree of excess or deficiency between the cash voucher data of the portable storage medium as a pre-bay card and the estimated toll is notified together with an alarm, so that driving is performed. Can prevent unpaid payments at automatic toll collection points due to inadvertent mistakes made by users. (3) According to the invention of claim 3, in the case of the credit payment method, the warning is prohibited even if the estimated toll is larger than the voucher data of the portable storage medium. Shortage warning can be performed, and the adverse effect of unnecessarily warning of a fee shortage can be prevented. (4) According to the invention of claim 5, when searching for a route only on a general road, the time required for passing through a section is considered for each passing time zone and each day of the week from the traveling history, so that more precise route selection becomes possible. In the travel plan of the toll road, the travel history for each individual is read from the portable storage medium, so that a travel plan suited to the circumstances specific to the driver or the fellow passenger can be proposed. (5) According to the invention of claim 6, if the toll road is frequently used, the optimum route is searched so as to preferentially use the toll road, otherwise, the optimum route is searched only on the general road. As a result, a route according to the situation can be provided to the driver.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of a control circuit of a first embodiment of a vehicle-mounted navigation device according to the present invention.

FIG. 2 is a diagram showing a configuration of an automatic toll gate showing an environment in which the in-vehicle navigation device of the present invention is used.

FIG. 3 is a perspective view showing an example of a card reader.

FIG. 4 is a flowchart showing a route selection program according to the first embodiment;

FIG. 5 is a flowchart following FIG. 4;

FIG. 6 is a block diagram showing an overall configuration of a control circuit of a second embodiment of the vehicle-mounted navigation device according to the present invention;

FIG. 7 is a flowchart showing a charge estimation program according to a second embodiment.

FIG. 8 is a flowchart following FIG. 7;

FIG. 9 is a flowchart illustrating a fee payment method selection program according to a third embodiment.

FIG. 10 is a flowchart illustrating a fee shortage warning process according to the third embodiment;

FIG. 11 shows a display example.

FIG. 12 is a block diagram showing the overall configuration of a control circuit of a fourth embodiment of the vehicle-mounted navigation device according to the present invention;

FIG. 13 is a flowchart showing a route selection condition switching program according to a fourth embodiment;

FIG. 14 is a flowchart illustrating a route selection program according to a fourth embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU 2 ROM 3 RAM 5 GPS sensor 6 Distance sensor 7 Direction sensor 8 Input device 9 Road map information memory 10 Image display unit 12 IC card 13 Data reader 14 Voice display unit 16 Timer 17 Attribute information memory

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-186048 (JP, A) JP-A-5-118866 (JP, A) JP-A-5-250538 (JP, A) International Publication 92/28516 (WO, A1) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01C 21/00 G07B 15/00 G07B 15/00 510 G08G 1/0969 G09B 29/10

Claims (8)

(57) [Claims] 1. A road map information storage means for storing road map information; a destination setting means for setting a destination of a vehicle; and a route search from a departure point or a current position to the destination is performed in a short time. An in-vehicle navigation device including a route search unit that calculates an optimal route, a reading unit that reads travel history information of a toll road recorded in a portable storage medium, and whether or not the optimal route includes a toll road. Determining means for determining whether a toll road is included in the optimal route, based on the read travel history information, driving the toll road included in the optimal route. An on-vehicle navigation device comprising: a toll road travel plan calculating means for calculating a plan. 2. The in-vehicle navigation device according to claim 1, wherein the portable storage medium has recorded therein voucher data so as to function as a prepaid card, and the travel history information includes a payment history of a toll road toll and a voucher. Toll estimating means for estimating a toll on a toll road included in the optimal route based on the toll road toll payment history, and the toll on the toll road estimated by the toll estimating means is a cash voucher. An in-vehicle navigation device comprising: a warning unit that warns when data is exceeded. 3. The in-vehicle navigation device according to claim 2, wherein credit data is recorded on the portable storage medium so as to function as a credit card in addition to the voucher data, and the payment history is a toll road toll. Includes a history of payment by the prepaid payment method and a history of payment by the credit payment method, and when the number of payments by the credit payment method is equal to or more than a predetermined value, the toll road estimated by the toll estimating means is used. An in-vehicle navigation device comprising a warning prohibiting unit that prohibits a warning by the warning unit even when the fee exceeds the voucher data. 4. The on-vehicle navigation device according to claim 2, wherein: a predicted traffic section calculating means for calculating a predicted traffic section that can be traveled with the bill data, the travel plan, the estimated toll, and the predicted traffic. Display means for displaying a list of sections; 5. The on-vehicle navigation device according to claim 1, wherein the route search means calculates a predetermined section passage time of a general road on the basis of a traveling history unique to a vehicle, and calculates a predetermined section passage time of a toll road. An in-vehicle navigation device, which calculates based on a driving history of a driver. 6. The on-vehicle navigation device according to claim 1, wherein the route searching means calculates a frequency of traveling on a toll road based on a personal toll road traveling history recorded in the portable storage medium. Frequency calculating means; two-path calculating means for performing two types of route search calculations, ie, a route search using a toll road and a route search not using a toll road when the toll road travel frequency is high; Display means for displaying the optimal route of the above, and selecting means for selecting one of the two optimal routes, comprising route guiding means for guiding the route on one of the optimal routes selected by the selecting means. An in-vehicle navigation device characterized in that: 7. The on-vehicle navigation device according to claim 6, wherein the frequency calculation means includes a current date and time and travel on a toll road included in a personal toll road travel history recorded in the portable storage medium. The two-path calculating means includes a sum calculating means for calculating a sum of a difference between the date and time, and the two-path calculating means does not use a toll road and a route search calculation using a toll road when determining that the sum is equal to or more than a predetermined value. An on-vehicle navigation device, which performs two types of route search calculations of route search. 8. The on-vehicle navigation device according to claim 7, wherein the display means displays the required time of the two optimal routes, a toll road toll, and the read cash note data. On-board navigation device.