JP2002286474A - Navigator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a navigator which can guide a user adequately in accordance with the level of running experience. SOLUTION: A running history recorder 26 measures the residence time of a vehicle in every administrative division to record the vehicle's running history and stores the history in a running history memory 28. A running frequency determiner 30 references the running history stored in the history memory 28, determines the running frequency in an administrative division to which the present running position of own vehicle belongs, and outputs the determination result to a guiding output unit 32. For a low running frequency, the output unit 32 outputs a rest guidance at short time intervals and a refuel station guidance and an eating spot guidance at specified timings. For a long running frequency, it outputs the rest guidance at long time intervals but neither refuel station guidance nor eating spot guidance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device for guiding the timing of a break or refueling.

[0002]

2. Description of the Related Art In general, an on-vehicle navigation device has a map display function of displaying a map around a vehicle position on a screen, and a route search for searching for a route specified by a user to a destination or a waypoint. It has a function, a route guidance function for guiding the traveling of the vehicle along the route set by the route search, and the like.

Some recent navigation devices provide various kinds of guidance for assisting driving by displaying images or outputting sounds. For example, each time the driving time elapses a predetermined time (or each time the driving distance exceeds the predetermined distance), the driver guides the driver to take a break, or when the fuel level is low, the nearest fueling station is There is a guide that presents a refueling station that prompts refueling, or a guide that informs the user of a meal place that guides the user and the nearest meal place during lunch or dinner.

[0004]

By the way, in general, when driving on a land that he or she knows well, the driver can drive without much nerves, so that the driver is less tired. If you are traveling on a land you do not know, it can be said that it is easy to get tired because you use nerves for driving. However, in the conventional navigation device, regardless of the depth of the driving experience of the driver on the land, the break guidance is provided at predetermined intervals, so when driving on a well-known land, If the rest guidance is performed more than necessary, the driver may feel troublesome. On the other hand, when traveling on an unknown land, there may be a case where the driver does not need to take a break, and the break guidance is not easily given.

[0005] In addition, the same applies to gas station guides and meal place guides. If you are traveling on a land you do not know,
Refueling station guidance when the fuel level is low and meal location guidance during meal time are convenient, but if you are traveling on a land you know well, drive Despite the fact that the user can select and decide on his own, there is a case where annoyance is felt by unnecessary guidance of a gas station or a meal place.

As described above, the conventional navigation device has a problem in that it is not possible to provide appropriate guidance according to the depth of the driving experience of the driver on the traveling land. The present invention has been made in view of such a point, and an object of the present invention is to provide a navigation device that can provide appropriate guidance according to the depth of traveling experience.

[0007]

In order to solve the above-mentioned problems, a navigation device according to the present invention stores a running history of a vehicle in running history storage means, and stores the running history based on a running state of the vehicle. The traveling frequency is updated by the history updating means, the traveling frequency is determined by the traveling frequency determining means based on the traveling history stored in the traveling history storage means, and a predetermined navigation process is performed by the navigation processing means in accordance with the determined traveling frequency. It is carried out. Since the traveling frequency determined based on the traveling history is reflected in the navigation process, it is possible to perform an appropriate process according to the depth of the traveling experience.

[0008] It is desirable that the above-mentioned navigation processing means includes a break guidance means for performing a break guidance for urging the driver to take a break, and variably setting an interval at which the break guidance is performed in accordance with a driving frequency. Specifically, when the traveling frequency is low, it is desirable to shorten the interval at which the rest guidance is performed, and conversely, when the traveling frequency is high, it is desirable to set the interval at which the rest guidance is extended. In general, the driver is liable to use tires for driving when the driving frequency is low, that is, in unfamiliar lands, and it is desirable to take breaks at short intervals.On the other hand, when the driving frequency is high, It is thought that the driver does not use much nerves for driving, so he is less tired and does not want to take breaks at short intervals. Therefore, by setting the interval at which the rest guidance is performed in consideration of the traveling frequency, the rest guidance can be performed at an appropriate timing according to the depth of the traveling experience.

Further, the above-mentioned navigation processing means provides a fueling station guide for notifying a driver of a fueling station located around the vehicle when the remaining fuel amount becomes low, and the driving frequency is determined by a predetermined threshold value. When the above is the case, it is desirable to have a gas station guidance means for stopping the gas station guidance. In general, when the driving frequency is high, the driver knows the location of the gas station nearby and does not need the guidance of the gas station from the navigation device. In the case of, by stopping the service station guidance, unnecessary service station guidance can be prevented from being performed, and the discomfort of the driver can be reduced.

The above-mentioned navigation processing means performs meal place guidance for notifying the driver of a meal providing place located around the vehicle when the meal time is approaching, and the driving frequency is equal to or higher than a predetermined threshold value. It is desirable to have a meal place guidance means for stopping the meal place guidance when. As in the case of the gas station guidance described above, when the traveling frequency is high, it is considered that the driver knows the location of the meal place around the vehicle position well and does not need the meal place guidance. Therefore, when the driving frequency of the driver is equal to or higher than a predetermined threshold value, the guidance of the meal place is stopped to prevent unnecessary guidance of the meal place and to reduce the discomfort of the driver. Can be.

The above-mentioned navigation processing means has a route search means for searching for a travel route from a departure point to a destination under predetermined search conditions, and variably setting the search conditions according to the driving frequency. It is desirable to have. For example, when the driving frequency is low, a route search is performed with priority given to a main road such as a national road or a prefectural road, and a driving route that is easy to drive is extracted. It is sufficient to perform a route search including a narrow road such as a road and extract a traveling route with a lower traveling cost. As described above, by performing the route search process in consideration of the traveling frequency, it is possible to set an appropriate traveling route according to the depth of traveling experience.

Further, the above-mentioned travel history is stored as a stay time obtained by accumulating the travel times of the vehicle within a predetermined range, and the travel frequency is determined by the travel frequency determining means based on the stay time. Is desirable. Since the traveling frequency in the predetermined range is considered to have a high correlation with the staying time in the predetermined range, the traveling frequency can be determined with high accuracy by storing the staying time as the traveling history.

The above-mentioned travel history is stored as the number of times the vehicle has traveled within a predetermined range, and the travel frequency determination means may determine the travel frequency based on the number of travels. Since the traveling frequency within the predetermined range is considered to have a high correlation with the number of traveling times within the predetermined range, it is possible to determine the traveling frequency with high accuracy by storing the number of traveling times as the traveling history. it can. In particular, the process of updating the number of times of travel has advantages in that the processing content is simpler than the process of calculating and updating the stay time, and the processing load can be reduced.

It is desirable that the above-mentioned predetermined range is set for each area of each administrative district. Generally, drivers
In many cases, the position of the vehicle and surrounding facilities are grasped in administrative districts such as municipalities, so the traveling frequency is determined in administrative districts to determine the driving frequency that matches the driver's feeling. Can be obtained.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A navigation device according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a detailed configuration of the navigation device of the present embodiment. The navigation device shown in FIG. 1 includes a navigation controller 1, a DVD 2, a disk reader 3, a remote control (remote control) unit 4, a vehicle position detector 5, a fuel level sensor 6, a display device 7, and an audio unit 8. Have been.

The navigation controller 1 controls the entire operation of the navigation device. The navigation controller 1 includes a CPU, ROM, RA
The function is realized by executing a predetermined operation program using M or the like. The detailed configuration of the navigation controller 1 will be described later.

The DVD 2 is an information storage medium storing map data necessary for map display, route search, and the like.
Specifically, the map data stored in the DVD 2 is in units of rectangular figures separated by predetermined longitude and latitude, and the map data of each figure is specified by specifying a figure number. And can be read.

The disc reader 3 can load one or more DVDs 2 and reads map data from any one of the DVDs 2 under the control of the navigation controller 1. The loaded disk is not necessarily a DVD, but may be a CD. Also, D
Both VD and CD may be selectively loadable.

The remote control unit 4 is provided with various operation keys such as a joystick for specifying up, down, left, and right directions, a numeric keypad, and a decision key for fixing various settings.
Signals corresponding to the operation contents are sent to the navigation controller 1
Output to The vehicle position detection unit 5 includes, for example, a GPS receiver, a direction sensor, a distance sensor, and the like, detects a vehicle position (longitude, latitude) at a predetermined timing, and outputs a detection result.

The remaining fuel sensor 6 detects the remaining fuel in the fuel tank of the vehicle, and outputs a detection signal indicating that the remaining fuel has reached a predetermined amount or less (for example, 5 liters or less). Note that, in recent vehicles, the vehicle itself often has a mechanism for detecting the remaining fuel amount. In such a case, the fuel remaining amount sensor 6 is not provided and the fuel remaining amount by the vehicle is not provided. May be used instead.

The display device 7 displays various information such as a map image around the position of the vehicle based on the image data output from the navigation controller 1. The audio unit 8 outputs various guidance voices (for example, a guidance voice prompting a break) based on the voice data output from the navigation controller 1.

Next, a detailed configuration of the navigation controller 1 will be described. The navigation controller 1 shown in FIG.
2, map drawing unit 14, VRAM 18, vehicle position calculation unit 2
0, an input processing unit 22, an operation screen generation unit 24, a travel history recording unit 26, a travel history memory 28, a travel frequency determination unit 30,
It includes a guidance output unit 32, a route search processing unit 40, a guidance route memory 42, a guidance route drawing unit 44, and an image synthesis unit 46.

The map buffer 10 includes the disk reader 3
, The map data read from the DVD 2 is temporarily stored. The map readout control unit 12 includes a vehicle position calculation unit 2
In response to the vehicle position calculated by 0, a request from the input processing unit 22, and the like, a read request for map data in a predetermined range is output to the disk reading device 3.

The map drawing section 14 generates map image data necessary for displaying a map image based on the map data stored in the map buffer 10. The VRAM 18 temporarily stores map image data output from the map drawing unit 14. The vehicle position calculation unit 20 calculates the own vehicle position and the own vehicle direction based on the detection data output from the vehicle position detection unit 5, and when the calculated own vehicle position is not on the road of the map data, A map matching process for correcting the own vehicle position is performed.

The input processing unit 22 outputs a command for performing an operation corresponding to various operation instructions input from the remote control unit 4 to each unit in the navigation controller 1. The operation screen generating unit 24 creates image data for displaying the operation screen according to an instruction from the input processing unit 22.

The traveling history recording section 26 accumulates the traveling time of the vehicle, measures the staying time for each predetermined administrative district, and records the measurement result in the traveling history memory 28 as the traveling history of the vehicle. The traveling history memory 28 stores the traveling history output from the traveling history recording unit 26.

FIG. 2 is a diagram showing the contents of the traveling history stored in the traveling history memory 28. As shown in FIG. 2, the traveling history memory 28 records the staying time obtained by accumulating the traveling time of the vehicle in each administrative district in units of municipalities such as "Iwaki-shi, Fukushima" and "Koriyama-shi, Fukushima". Have been.

The traveling frequency determination unit 30 stores the traveling history memory 2
With reference to the travel history stored in 8, the travel frequency in the administrative district to which the current travel location of the vehicle belongs is determined, and the determination result is output to the guidance output unit 32. Specifically, as a result of referring to the travel history, the travel frequency determination unit 30 determines that the staying time in the administrative district where the vehicle is currently traveling is smaller than a predetermined threshold (for example, 100 hours). This administrative district is determined to be “frequently traveling”, and if the stay time is longer than a predetermined threshold, this administrative district is determined to be “frequently traveling”.

The guide output section 32 generates and outputs image data for displaying various kinds of guides as images and voice data for outputting sounds, and includes a break guide section 50, a gas station guide section 52, A meal place guidance unit 54 is provided. The break guide unit 50 performs a predetermined break guide that outputs a message prompting the driver to take a break every time the driving time of the vehicle elapses a predetermined time.

The refueling station guide 52 outputs a message prompting refueling when the remaining amount of fuel becomes equal to or less than a predetermined amount based on the detection result of the remaining fuel amount sensor 6.
Based on the map data stored in the map buffer 10, a search is made for a nearest gas station, and guidance for a predetermined gas station is provided.

The meal place guidance section 54 outputs a message indicating that the meal time zone is for lunch, dinner, etc., searches for the nearest meal place based on the map data stored in the map buffer 10, and provides guidance. A predetermined meal place guidance is given. The guidance output unit 32 according to the present embodiment is configured such that the break guidance unit described above is used for the case where the traveling frequency of the administrative district where the vehicle is traveling is low and the case where the traveling frequency is high according to the determination result of the traveling frequency determination unit 30 described above. The contents of the guidance process performed by each of the gas station 50, the gas station guidance unit 52, and the meal place guidance unit 54 are changed.

FIG. 3 is a diagram showing the contents of various types of guidance changed according to the driving frequency. As shown in FIG. 3, when the driving frequency is low in the administrative district where the vehicle is traveling, the guidance output unit 32 performs (1) “rest guidance” when the driving time has passed 2 hours or more, (2) “Guide to gas station” is performed when the remaining fuel amount is equal to or less than a predetermined amount, and (3) “Guidance place information” is specified at a predetermined time (for example, around 12:00 am or 6:00 pm). And so on).

When the driving frequency is high in the administrative district where the vehicle is traveling, the guidance output section 32 performs (1) “rest guidance” when the driving time has passed for 4 hours or more, and (2) ) "Guide to gas stations" and "Guide to meal places"
Is not implemented. The route search processing unit 40 includes a departure place and a destination (or transit point) designated by the user.
A search is made for a traveling route that connects between under the predetermined conditions. For example,
Under various conditions such as the shortest distance and the shortest time, a traveling route that minimizes the cost is extracted and set as a guidance route. The route data indicating the content of the guide route set by the route search processing unit 40 is stored in the guide route memory 42.

The route search processing unit 40 in the present embodiment
Changes the content of the route search process based on the result of the determination of the traveling frequency performed by the traveling frequency determination unit 30. Specifically, when performing the route search process, when the traveling frequency of the administrative district in which the vehicle is traveling is low, the route search processing unit 40 performs the route search by giving priority to a main road such as a national road or a prefectural road. Thus, a driving route that is easier to drive is extracted. Conversely, when the driving frequency in the administrative district is high, a normal route search is performed to extract a driving route with a lower driving cost.

The guide route drawing unit 44 includes a route search processing unit 4
From among the route data set by 0 and stored in the guide route memory 42, a route included in the map drawn at that time in the VRAM 18 is selected, and a guide route image for displaying the guide route over the map is displayed. Generate data.

The image synthesizing section 46 superimposes the image data output from the operation screen generating section 24 and the image data output from the guidance output section 32 on the map image data read from the VRAM 18 to perform image synthesis. The composite image data is output to the display device 7.

The running history memory 28 described above serves as running history storage means, the running history recording section 26 serves as running history updating means,
The driving frequency determination unit 30 corresponds to the driving frequency determination unit, and the display device 7, the audio unit 8, the guidance output unit 32, the route search processing unit 40, and the image synthesis unit 46 correspond to the navigation processing unit. Also, the break guide unit 50 corresponds to the break guide unit, the gas station guide unit 52 corresponds to the gas station guide unit, the meal place guide unit 54 corresponds to the meal place guide unit, and the route search processing unit 40 corresponds to the route search unit. I have.

The navigation device according to the present embodiment has such a configuration, and its operation will be described next. FIG. 4 is a flowchart showing an operation procedure of the navigation device when recording the traveling history of the own vehicle, and mainly shows the operation performed by the traveling history recording unit 26.

The traveling history recording unit 26 is provided with a vehicle position calculating unit 2
Based on the current position of the vehicle output from 0 and the map data stored in the map buffer 10, the administrative district to which the current traveling position of the vehicle belongs is specified (step 100). Next, the traveling history recording unit 26 refers to the traveling history stored in the traveling history memory 28, and determines whether or not there is a traveling history related to the administrative district specified in Step 100 (Step 101).

If a traveling history exists, step 1
The affirmative determination is made in 01, and the travel history recording unit 26 reads the stay time recorded corresponding to this administrative district (step 102). For example, when the traveling history shown in FIG.
If the administrative district specified in the above is "Kita-ku, Tokyo", "150 hours" which is the stay time corresponding to this administrative district is read.

If there is no traveling history corresponding to the administrative district specified in step 100, a negative determination is made in step 101. In this case, the traveling history recording unit 26 records the traveling history in this administrative district. A new target is set and registered in the travel history memory 28 (step 103). Further, the stay time corresponding to the newly registered administrative district is set to an initial value (step 104).

When the stay time corresponding to the predetermined administrative district is read in step 102, or the initial value of the stay time corresponding to the new administrative district is set in step 104, the travel history recording section 26 Determines whether the administrative district to which the traveling position of the vehicle belongs has changed (step 105).

If the administrative district does not change, step 1
A negative determination is made in 05, and the travel history recording unit 26 determines whether a predetermined time (for example, one hour) has elapsed (step 106). If the predetermined time has not elapsed, a negative determination is made in step 106, and the traveling history recording unit 26 returns to step 105 described above and repeats the subsequent processing.

If the predetermined time has elapsed, step 1
In step 06, an affirmative determination is made, and the travel history recording unit 26 is read in step 102, or
In step 4, the newly set stay time is increased by a predetermined value (step 107). For example, the value of the stay time corresponding to the current administrative district is “150 hours”, and
If the predetermined time in 05 is set to “1 hour”, the traveling history recording unit 26 increases the stay time by 1 hour and sets it to “151 hours”. Thereafter, the process returns to step 105 described above, and the subsequent processing is repeated.

If the administrative district in which the vehicle is traveling has changed, an affirmative determination is made in step 105 described above.
The travel history recording unit 26 updates the travel history stored in the travel history memory 28 based on the stay time measured corresponding to the administrative district in which the vehicle has traveled (step 10).
8). Thereafter, the driving history recording unit 26 returns to step 100 described above, specifies a new administrative district, and repeats the subsequent processing.

Next, a description will be given of the operation of changing and setting the guidance content according to the traveling frequency and performing various types of guidance.
FIG. 5 shows the contents of the guidance changed and set according to the driving frequency,
6 is a flowchart showing an operation procedure of the navigation device when performing various kinds of guidance.

The traveling frequency determining unit 30 acquires the administrative district to which the traveling position of the vehicle belongs from the traveling history recording unit 26 (Step 200). Next, the traveling frequency determination unit 30 determines the traveling frequency in the administrative district to which the traveling position of the vehicle belongs based on the traveling history stored in the traveling history memory 28 (Step 201). As described above, when the stay time in the current administrative district is smaller than a predetermined threshold, it is determined that the traveling frequency of this administrative district is low, and when the stay time is larger than the predetermined threshold, It is determined that the traveling frequency of this administrative district is high.

Next, the guidance output section 32 is provided with the traveling frequency determination section 3.
The guidance content is switched and set according to the determination result of the driving frequency based on 0 (step 202). Next, the guidance output unit 3
The break guidance unit 50 in 2 determines whether it is time to perform a break guidance (step 203). Specifically, the break guide unit 50 provides (1) a break guide when two hours have elapsed since the vehicle started running when the break guide interval is set to “2 hours”. (2) If the break guidance interval is set to "4 hours", the break guidance is performed when four hours have elapsed since the vehicle started running. It is determined that the timing is reached.

If it is time to give a break guidance, an affirmative decision is made in step 203 and the break guidance unit 5
In step 204, a predetermined guidance image is displayed and a guidance voice is output to provide a break guidance (step 204). afterwards,
Returning to step 200 described above, the subsequent processing is repeated.

If it is not time to give a break guidance, a negative determination is made in step 203 described above.
Next, the refueling station guide section 52 in the guide output section 32 determines whether or not it is time to perform refueling station guidance based on the detection result output from the remaining fuel sensor 6 (step 205).

If it is time to provide the service station guidance, an affirmative determination is made in step 205, and then the service station guide section 52 determines whether or not the setting relating to the service station guide is set to "execution". (Step 206). If the setting is “executed”, an affirmative determination is made in step 206, and the refueling station guide unit 52 displays a predetermined guidance image and outputs a guidance voice to perform the refueling station guidance ( Step 207). Then, step 20 described above is performed.
After returning to 0, the subsequent processing is repeated.

If it is not time to perform the service station guidance (No in step 205 described above), or if the setting relating to the service station guidance is “not implemented” (No in step 206 described above), Guidance output unit 32
The meal place guidance unit 54 determines whether or not it is time to provide meal place guidance based on the current time (step 208).

If it is time to provide a meal place guidance, an affirmative determination is made in step 208, and then the meal place guidance section 54 sets the setting relating to the meal place guidance to "execute".
Is determined (step 209). If the setting is “executed”, an affirmative determination is made in step 209, and the meal place guide unit 54 displays a predetermined guide image and outputs a guide voice to guide the meal place ( Step 210). Thereafter, the process returns to step 200 described above, and the subsequent processing is repeated.

When it is not time to provide meal place guidance (negative determination in step 208 described above), or when the setting relating to gas station guidance is "not implemented" (negative determination in step 209 described above) The meal guidance by the meal place guidance unit 54 is not performed, and in this case,
Returning to step 200 described above, the subsequent processing is repeated.

Next, the operation for changing and setting the search condition according to the traveling frequency and performing the route search process will be described. FIG. 6 is a flowchart showing an operation procedure of the navigation apparatus when changing and setting a search condition according to a traveling frequency and performing a route search process.

The route search processing section 40 determines whether or not an instruction to perform a route search has been given (step 30).
0). While the route search instruction is not issued, step 300
Is repeated. If a route search instruction has been issued, a positive determination is made in step 300, and the route search processing unit 40 sets a departure place and a destination (step 301). For example, if the user is instructed to search for a traveling route to the meal place guided by the meal place guide unit 54, the route search processing unit 40 sets the own vehicle position at that time as the departure point, and The set meal place is set as the destination. When a specific point is designated by a method such as performing a point search based on an address, a telephone number, or the like, the route search processing unit 40 sets this point as a destination and departs from the position of the own vehicle. Set to the ground.

Next, the route search processing unit 40 requests the traveling frequency determination unit 30 to determine the traveling frequency in the administrative district to which the set destination belongs. The traveling frequency determination unit 30 that has received the request specifies the administrative district to which the destination belongs, and determines the traveling frequency with reference to the traveling history stored in the traveling history memory 28 (Step 302).

The route search processing section 40 includes a traveling frequency determination section 3
The determination result of the driving frequency output from 0 is received, and it is determined whether or not the driving frequency in the administrative district to which the destination belongs is high (step 303). If the traveling frequency is high, an affirmative determination is made in step 303, and the route search processing unit 40
A normal route search process is performed in consideration of various roads such as a main road and a general road, and a traveling route connecting the departure place and the destination is extracted (step 304).

If the traveling frequency is low, a negative determination is made in step 303, and the route search processing unit 40 performs a route search process giving priority to the main road, and determines a travel route connecting the departure place and the destination. Extract (step 305). When the travel route is extracted by the processing shown in step 304 or step 305, the route search processing unit 40 stores the route data indicating the content of the travel route in the guidance route memory 42 (step 306). Thereafter, a predetermined route guidance process is performed based on the route data stored in the guidance route memory 42.

As described above, in the navigation device according to the present embodiment, the frequency of travel in each administrative district is determined in units of administrative districts, and the length of the time interval for providing break guidance, the refueling station guidance is determined in accordance with the travel frequency. Since it is set whether or not to provide meal place guidance, it is possible to provide appropriate guidance according to the depth of traveling experience in each administrative district. In addition, since the search condition at the time of route search is variably set according to the driving frequency in each administrative district, it is possible to extract an appropriate driving route according to the depth of the driving experience.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. For example, in the embodiment described above,
Although the travel history is recorded by measuring the stay time in each administrative district, the travel history may be recorded by recording the number of times the vehicle has traveled in each administrative district.

In the above-described embodiment, the travel history is recorded for each administrative district. However, the present invention is not limited to this. For example, other predetermined ranges, such as map data and roads, may be used. The traveling history may be recorded as a unit. Specifically, when the road itself is used as a unit,
By associating information that specifies each road (for example, a road name such as "National Highway XX") with the travel time of the road, a travel history can be recorded for each road. In general map data, any two on the road
Roads on the map are represented using links that connect points and nodes that are adjacent points that connect two or more links. The running history of each road is recorded in association with these links and nodes. You may.

When the traveling history is recorded in units of the road itself, when the traveling frequency is determined, the traveling frequency is determined based on the magnitude of the traveling time on the road itself on which the vehicle is traveling. Alternatively, it is more preferable to extract roads included in a predetermined range (for example, within a radius of 10 km) around the own vehicle position and determine the driving frequency in consideration of the driving history on each of the extracted roads. desirable. For example, the travel frequency can be determined by calculating the total value of the travel time on each road included in the predetermined range and calculating the stay time in the predetermined range.

Further, in the above-described embodiment, the intervals at which the break guidance is performed are set to two stages of "2 hours" and "4 hours". However, more stages may be set. For example, when the stay time is very short, such as 10 hours or less, "1 hour", when the stay time is relatively short, 10 to 100 hours, "2 hours", and the stay time is relatively 100 to 500 hours. The interval between breaks may be set in multiple stages according to the driving frequency, such as "3 hours" when the number of stays is large and "4 hours" when the stay time is extremely long such as 500 hours or more.

When providing a break guidance, in addition to a message prompting a break, an appropriate suitable resting place (for example, a convenience store) may be searched to guide the resting place. .

[0066]

As described above, according to the present invention, the traveling frequency is determined based on the traveling history, and the traveling frequency is reflected in the navigation processing. It can be performed.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a detailed configuration of a navigation device according to an embodiment.

FIG. 2 is a diagram showing the contents of a traveling history stored in a traveling history memory.

FIG. 3 is a diagram showing the contents of various types of guidance changed according to the driving frequency.

FIG. 4 is a flowchart showing an operation procedure of the navigation device when recording a traveling history of the own vehicle.

FIG. 5 is a flowchart showing an operation procedure of the navigation apparatus when changing and setting the contents of various types of guidance according to the driving frequency.

FIG. 6 changes and sets search conditions according to the driving frequency;
9 is a flowchart illustrating an operation procedure of the navigation device when performing a route search process.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 navigation controller 4 remote control (remote control) unit 5 vehicle position detecting unit 6 fuel remaining sensor 7 display device 8 audio unit 10 map buffer 14 map drawing unit 18 VRAM 20 vehicle position calculating unit 22 input processing unit 26 running history recording unit 28 Running history memory 30 running frequency determination unit 32 guidance output unit 40 route search processing unit 42 guidance route memory 44 guidance route drawing unit 46 image synthesis unit 50 rest guidance unit 52 gas station guidance unit 54 meal place guidance unit

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C032 HB05 HB22 HC27 HC31 HD16 2F029 AA02 AB01 AB07 AC14 AC16 5H180 BB13 FF04 FF05 FF10 FF22 FF27

Claims (8)

[Claims] 1. A travel history storage means for storing a travel history of a vehicle; a travel history update means for updating the travel history stored in the travel history storage means based on a travel state of the vehicle; Traveling frequency determination means for determining a traveling frequency based on the traveling history stored in the means, navigation processing means for performing a predetermined navigation process according to the traveling frequency determined by the traveling frequency determination means, A navigation device comprising: 2. The navigation processing means according to claim 1, wherein said navigation processing means includes a rest guidance means for prompting a driver to take a rest and variably setting an interval at which said rest guidance is performed in accordance with said driving frequency. A navigation device characterized by the above-mentioned. 3. The vehicle according to claim 1, wherein the navigation processing means performs a service station guide for notifying a driver of a service station located around the vehicle when the remaining fuel amount becomes low, and the driving frequency. A service station guide means for stopping the service station guide when is greater than or equal to a predetermined threshold value. 4. The navigation processing means according to claim 1, wherein the navigation processing means performs a meal place guidance for notifying a driver of a meal providing place located around the vehicle when the meal time approaches, and the driving frequency is reduced. A navigation device comprising a meal place guidance means for stopping the meal place guidance when the value is equal to or greater than a predetermined threshold value. 5. The navigation processing means according to claim 1, wherein the navigation processing means searches for a travel route from a departure place to a destination under predetermined search conditions, and variably sets the search conditions according to the travel frequency. A navigation device having route search means. 6. The travel history according to claim 1, wherein the travel history is a stay time obtained by accumulating a travel time of the vehicle within a predetermined range, and the travel frequency determining unit is configured to determine the travel frequency based on the stay time. A navigation device for determining the driving frequency by using the navigation device. 7. The travel history according to claim 1, wherein the travel history is the number of times the vehicle has traveled within a predetermined range, and the travel frequency determination unit determines the travel frequency based on the travel number. A navigation device characterized by determining the following. 8. The navigation device according to claim 6, wherein the predetermined range is set for each area of each administrative district.