JP2000221051A - Annunciator for navigation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely announce a guide direction in an intersection, and in particular, to surely inform a person who has difficulty in hearing of the guide direction in the intersection, even when a route guide is missed in seeing or in hearing in the case where a traveling route of an automobile for moving to a destination is route-guided by a traveling route displayed on a display by a navigation system, or by a route guide using a voice. SOLUTION: In this annunciator, an R-vibrator 25 and an L-vibrator 26 are provided respectively in different portions in a seat cushion 23 of a driver' seat 22, a W-vibrator 27 is provided in a width-dirctional central part of a seatback 24 of the seat 22, and the W-vibrator 27 of the seatback 24 is driven when a distance from the present position upto an intersection is a prescribed announcing distance (for example, about 300 m) or more, so as to be surely informed thereby of approaching to the intersection although it is the prescribed distance or more. The W-vibrator 27, the R-vibrator 25 or the L-vibrator 26 is oscillated in response to rectilinear traveling, right turn or left turn, after the distance upto the intersection comes below the prescribed announcing distance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a notifying device of a navigation system for guiding, via a display, a movement route on which a vehicle moves from a current position to a set destination, and particularly to a guidance direction when passing through an intersection. The present invention relates to a device that effectively supports route guidance by driving and notifying a vibrating body provided in a carrier seat.

[0002]

2. Description of the Related Art Conventionally, navigation systems for vehicles such as automobiles divide road guidance information such as major intersections and interchanges, that is, map information, into a plurality of areas and provide them as fixed information in a control device thereof, which is set from a current location. Based on the travel route (travel route) to the destination,
The map is displayed on the display while moving in sequence while switching the route, and the map is displayed so as to overlap the travel route, thereby guiding the traveling of the vehicle via the display.

By the way, recently, when a route is guided on the basis of the travel route, when an intersection is approached, the distance to the intersection, the name of the intersection, and the turning direction are displayed on a part of the display. As described in “Navigation device” in JP-A-209007,
The voice guidance also adds an intersection guidance function that guides you, such as "Pawn !, about 300 m, right at Umeda intersection", so that you can pass through unfamiliar intersections in the direction along the travel route without fail. . In this case, the guidance for the passing direction at the intersection starts approximately 700 m before 3
Intersection guidance is provided by a display and a voice a plurality of times, such as a position before 00 m and a position before 100 m.

[0004] Here, in many cases, a car is generally equipped with a car radio or an audio device as a standard or an option, and it is possible to enjoy a drive while listening to a radio broadcast or listening to favorite music. ing.
That is, the driver often drives the car while watching the moving route displayed on the display by the navigation system and listening to favorite music.

[0005]

As described above, when a vehicle equipped with a navigation system travels to a destination based on a moving route displayed on a display, a driver visually checks the front and sides. In addition, while traveling while checking the rear of the vehicle with the rearview mirror, the traveling route of the display is viewed, and the distance to the intersection and the guidance direction at the intersection may be overlooked. In particular, when the intersections are continuous, the guidance directions at the plurality of intersections may be displayed at the same time, and the guidance direction at the next intersection cannot be determined.

On the other hand, as described in Japanese Patent Application Laid-Open No. 7-209007, intersection guidance is also provided by voice, but when listening to a car radio or favorite music, or when the volume is high, the intersection by voice is used. There is also a case where the guidance is overlooked. Therefore, it is conceivable to increase the voice of the intersection guidance, but there is a problem in that the passenger listening to the music is inconvenienced. In particular, for the hearing-impaired, they will rely exclusively on the guidance display at the intersection, but as mentioned above, they will have to look at the travel route on the display while driving and overlook the guidance direction at the next intersection. There is a problem that they disappear and get panic after approaching the intersection.

SUMMARY OF THE INVENTION It is an object of the present invention to be able to notify the driver by vibrating a vibrating body when guiding a moving route of an automobile through a display, and to notify the guidance direction at each intersection by vibration of the corresponding vibrating body. What can be done, that it can be notified by a seat belt prior to vibration by the vibrating body, that the degree of approach to the intersection can be notified by the magnitude of the vibration, that the vibration form of the vibrating body can be corrected according to the running state of the car, and that the intersection bend angle can be vibrated The notification can be made based on the driving cycle of the body.

[0008]

According to a first aspect of the present invention, there is provided a notification system for a navigation system having map information including road intersection information, and displaying a movement route on which a vehicle moves from a current position to a set destination. In a navigation system guided through a vehicle, a vibrating body provided on a driver's seat of a vehicle and driven by an electric signal to vibrate, and a notification control unit that drives the vibrating body to notify a driver when a route is guided by the navigation system. It is provided.

In a vehicle driver's seat, a vibrating body which is driven by an electric signal and vibrates is provided on a seat surface portion. By the way, the navigation system is activated,
When the destination is set, a travel route (travel route) from the current position to the destination is obtained, and the travel route is displayed on the display. Then, as the current position moves as the vehicle travels, the notification control means detects a cautionary point such as a branch point or an intersection located on the moving route at the time of route guidance by the navigation system. Since the body is driven, the vibration of the vibrating body informs the driver of information such as the approaching point of interest located on the moving route.

That is, even if the driver overlooks the route guidance displayed on the display or misses the intersection guidance by voice, it is necessary that the driver be seated in the driver's seat in any position. Sometimes necessary information can be effectively and reliably notified to the driver by the vibration of the vibrating body. Further, the information is notified by vibrating the vibrating body, so that the passengers listening to the radio broadcast or the music are not inconvenienced at all.

Here, a plurality of vibrators are provided at different portions of the driver's seat, and the notification control means obtains the guidance direction at each intersection on the moving route from the intersection information, and calculates the guidance direction from before the intersection until passing through the intersection. In the case where the vibrating body corresponding to the guiding direction among the plurality of vibrating bodies is selectively driven (claim 2 dependent on claim 1), when the guiding direction when passing through the intersection is the right direction, the guiding is performed. Only the right vibrating body corresponding to the direction is driven until passing through the intersection, and when the guiding direction is left, only the left vibrating body corresponding to the guiding direction is driven until passing through the intersection. The person can easily and reliably recognize the guidance direction at the intersection based on the position of the vibrating body.

[0012] The plurality of vibrators may be one vibrator provided at the center in the width direction of the seat back of the driver's seat, and a pair of right and left vibrators provided on the seat cushion of the driver's seat. (Claim 3 depending on claim 1 or 2), if the guidance direction at the intersection is straight ahead, only the central vibrator provided at the center in the width direction of the seat back may be driven. The central vibrator and a pair of right and left vibrators are simultaneously driven. When the guidance direction is a right turn, only the right vibrator is driven, or the right vibrator and the central vibrator are simultaneously driven. If the guidance direction is a left turn, drive only the left vibrating body, or drive these left vibrating body and the central vibrating body at the same time,
The guidance direction can be effectively notified by a small number of vibrators.

The notification control means drives the right vibrator provided on the seat cushion when guiding the intersection in the right-turn direction, and drives the left vibrator provided on the seat cushion when guiding the intersection in the left-turn direction. When the vibrating body is driven (claim 4 dependent on claim 3), it can be easily notified that the guidance direction of the intersection is a right turn by the vibration of the right vibrating body, and the guidance of the intersection by the vibration of the left vibrating body. A left turn in the direction can be easily notified, the cost of the vibrating body can be minimized, and the driving power for driving the vibrating body can be minimized.

Further, a notice means for notifying the vibration of the vibrating body is provided, and the notification control means drives the notifying means prior to driving any of the plurality of vibrating bodies.
According to claim 5), since the vibrating body actually vibrates after some notice, even if the driver is not accustomed to seat vibration, the vibrating body vibrates according to the notice. Surprise and discomfort at the time can be reduced.

[0015] In the case where the notice means comprises vibration adding means for vibrating the seat belt of the seat belt retractor (claim 6 dependent on claim 5), the vibration adding means causes the seat of the seat belt retractor to be vibrated. Since the vibrating body actually vibrates after the belt vibrates, the surprise and discomfort of the driver can be effectively alleviated with a simple mechanism by the advance notice.

Further, at the time of route guidance in front of each intersection, the notification control means, when the distance from the current position to the intersection is equal to or more than a predetermined notification distance, one center vibration provided at the center in the width direction of the seat back. In the case of driving the body (claim 7 dependent on claim 3), when the current position is, for example, 700 m to 1 km before the intersection and more than a predetermined notification distance (for example, about 300 m), It is not necessary to notify the guidance direction at the intersection, but it is possible to effectively notify that the vehicle is approaching the intersection by the vibration of one central vibrator.

The notification control means may include a central vibrating body and a right vibrating body corresponding to a straight ahead, a right turn, and a left turn, respectively, when the distance from the current position to the intersection is less than a predetermined notification distance such as 300 m. When driving the left vibrating body (claim 8 dependent on claim 7), when the distance to the next intersection is within a predetermined notification distance (for example, about 300 m) and the guidance direction is instructed, The straight vibration can be reported by the vibration of the central vibrator, the right turn can be reported by the vibration of the right vibrator, and the left turn can be reported by the vibration of the left vibrator. Further, the driving power at the time of driving the vibrator can be minimized.

The notification control means may increase the drive gain for driving the vibrating body as the vehicle approaches the intersection (claim 9 depending on any one of claims 1 to 8). By increasing the vibration, it is possible to effectively and easily report the degree of approach to the intersection. In addition, when the notification control means changes the vibration mode of these vibrating bodies according to the running state such as deceleration, acceleration, turning, and the like (claim 10 depending on any one of claims 1 to 9), The vibration mode of the vibrating body is changed so that the magnitude of the vibration transmitted to the driver becomes substantially constant in consideration of the swinging of the driver's body in the front-back direction or the left-right direction according to the traveling state, so that the intersection The driver can always be informed of the guidance direction in stabilizing.

In the case where the driving cycle of the vibrating body is shortened as the bend angle of the intersection increases (claim 11 dependent on claim 10), the notification control means reduces the driving cycle of the vibrating body. In addition, the degree of the turning angle of the intersection can be effectively and easily notified. Further, the notification control means, when notifying information other than the route guidance at the intersection, notifies the information by driving the central vibrator in a form different from the route guidance for the intersection (claims 3, 7, and 8). According to claim 12), the central vibrator can be used in common and the information other than the route guidance can be identified by driving the information in a different form from the route guidance for the intersection. Can be notified.

In the case where the vibrating body has an eccentric weight and a motor for rotating the eccentric weight (claim 13 dependent on any one of claims 1 to 12), the eccentric weight is rotated by the motor. When driven, the vibrating body vibrates, so that vibration can be generated effectively, and the vibrating body can be reduced in size and advantageous in cost. By changing the driving voltage of the motor, the magnitude of the vibration can be increased. Can be changed.

Further, the vibrating member is provided on each of a seat cushion and a seat back of a driver's seat, and a notification control means sets a predetermined notification point in front of each intersection by using a distance or time as a parameter, and sets each intersection. In the case of guiding the route in front of the vehicle, the vibrating body of the seat back is driven before reaching the notification point and the vibrating body of the seat cushion is driven after reaching the notification point (claim 14 dependent on claim 1). A predetermined notification point is set based on the traveling speed of the vehicle during normal driving or traffic congestion using the distance or time from each intersection as a parameter, and the vibration of the seat back until reaching the notification point is set. The approach of the intersection is notified by the driving of the body, and after reaching the notification point, the intersection is driven by the driving of the vibration member of the seat cushion. Kicking guidance direction is notified.

When the current position is far from the intersection, the center vibrator of the seat back is driven, and when the current position is near the intersection, a pair of vibrators provided on the seat cushion are driven in accordance with the guiding direction at the intersection. In this case (claim 15 dependent on claim 3), by driving the central vibrator of the seat back, it is possible to be notified that there is an intersection in the future, and a pair of pairs provided on the seat cushion are provided. By driving any of the vibrators, it is possible to notify that the next intersection is approaching and the guidance direction at the intersection.

Further, when the vibrating body is provided on a seat cushion of a driver's seat (claim 16 dependent on claim 1), the driver sits on the driver's seat in any posture. Just by being there, necessary information such as intersection information can be effectively and reliably recognized by the vibration of the vibrating body. Further, when the plurality of vibrators are provided on the seat cushion of the driver's seat (claim 17 dependent on claim 2), the driver sits on the driver's seat in any posture. Thus, the guidance direction at the intersection can be easily and reliably recognized based on the position of the vibrating body that vibrates.

In the case where the notification control means drives the central vibrator, the right vibrator, and the left vibrator, respectively, according to the straight ahead, right turn, and left turn at each intersection (claim 18 dependent on claim 3). The driver can easily recognize that the traveling direction at the intersection is straight ahead due to the vibration of the central vibrating body of the seat back, and can easily make a right turn due to the vibration of the right vibrating body of the seat cushion. , And it can be easily recognized that the vehicle is turning left due to the vibration of the left vibrating body of the seat cushion.

In the case where the notification control means sets a notification point using a time required to reach each intersection determined in consideration of the vehicle speed as a parameter (claim 19 dependent on claim 14), the traffic control means sets a traffic point. If the traveling speed of the vehicle during a traffic jam is slow in a sloppy state, the notification point is provided at a position very close to the intersection, and the guidance direction at the intersection is set at the optimal time based on the time perspective. By driving the vibrator, the guidance direction at the intersection can be efficiently notified.

Further, the plurality of vibrators include a pair of right and left vibrators provided on a seat cushion of a driver's seat, and the notification control means is provided on the seat cushion when the intersection is guided in a right turn direction. When the right vibrator is driven and the intersection is guided to turn left (claim 20 dependent on claim 2), a pair of right and left vibrators are provided on the seat cushion of the driver's seat. Because
It works in the same way as in claim 4.

[0027]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is an example in which the present invention is applied to a notification device of a navigation system that includes a liquid crystal display and map information, and guides, via the liquid crystal display, a moving path from a current position to a destination via a car. First, a block diagram of a control system of the navigation system 1 will be described with reference to FIG.

The control unit CU includes a CPU 18 and an R connected to the CPU 18 via a bus such as a data bus.
OM19 and RAM20, input / output interface 2
1 and drive circuits 14 to 17 and the like. The input / output interface 21 includes a receiving device 2, a CD player driver 6, a display controller 8,
A gyro sensor 10 that measures the position of the vehicle even in a place where GPS radio waves cannot reach, an operation unit 11, a speaker 12 that outputs various kinds of guidance information by voice, an optical / radio wave beacon receiver 13 and the like are connected. A vehicle speed signal and a steering angle signal are input from a vehicle speed sensor and a steering angle sensor provided in an automobile (not shown), respectively.

The receiving device 2 is for receiving information for detecting the current position of the vehicle from a communication satellite (GPS satellite) via a GPS antenna 3 provided on the vehicle. C
The CD player 4 connected to the D player driver 6 includes a normal compact disc (not shown) and a CD-RO
Any of M5 can be mounted. This C
In the D-ROM 5, a map based on the Japanese geodetic system is divided into a plurality of areas, and map information of the plurality of divided areas is stored together with area codes.

Further, each map information includes intersection position data indicating that there is an intersection including a branch point, and the form of the intersection (a three-way intersection, a cross shape, a T shape, a Y shape,...).
Etc.) is included. A CD player driver 6 is connected to the CD player 4. The display mechanism 7 includes a display RA.
It comprises a display controller 8 equipped with M and a liquid crystal display 9. The display controller 8 writes the display data output from the input / output interface 24 to the display RAM, and outputs a display signal corresponding to the display data to the liquid crystal display 9.

The operation unit 11 is provided with a plurality of function keys such as a power switch and a movement key for manually moving a displayed map. The optical / radio wave beacon receiver 13 is a receiver that receives an optical beacon for a general road or a radio beacon for a highway. The ROM 18 stores a route guidance control program for guiding a route based on a travel route from a current position to a destination and a travel position of a running car, a control program for notification control specific to the present application, which will be described later, and the like.

The route guidance control program includes a conversion table for converting the position information of the GPS geodetic system received by the receiving device 2 into position information of the Japanese geodetic system in order to display the position information on the liquid crystal display 9. A travel route calculation control program for automatically obtaining a travel route (travel route) to a set destination, and selectively reading map information near the current position from the CD-ROM 5 based on the travel route and the current position. A map display control program to be displayed on the liquid crystal display 9, a travel route display control program to display the travel route as "red line" by overlapping the map information,
A guidance direction display control program for displaying a guidance direction (straight, right turn, left turn) at an intersection based on a travel route and intersection information on the travel route, an intersection distance for calculating a distance from a current position to an intersection (including a branch point). Calculation program, the distance to the intersection (including the junction) is 700m, 300m,
When the vehicle reaches 100 m, 50 m, 30 m, or 10 m, an intersection voice guidance control program that provides voice guidance such as "Pawn !, about XX m, turn right at the XX intersection" is included.

The RAM 19 is provided with a flag memory, a counter memory, a pointer memory, and the like, as necessary, in addition to various memories necessary for executing the route guidance control and the notification control. Next, the vibrators 25 to 27 provided on the driver's seat 22 will be described with reference to FIGS. The driver's seat 22 includes a horizontal seat cushion 23 on which the driver sits during driving, and a seat back 24 pivotally supported by the rear end of the seat cushion 23 to support the driver from the rear side. It consists of

In the vicinity of the front end of the seat cushion 23, circular recesses are respectively formed at left and right surface portions where the left and right thighs of the driver abut, and one cylindrical right vibration is formed in the right recess. Body (hereinafter referred to as R vibrator) 2
5, and one cylindrical left vibrating body (hereinafter referred to as L vibrating body) 26 is provided in the left concave portion. Further, a circular concave portion is formed in the vicinity of the lower end of the seat back 24 and in the widthwise central portion where the driver's waist abuts, and one central vibrator (hereinafter referred to as W
(Referred to as a vibrator) 27 is provided.

Since these vibrators 25 to 27 have the same configuration, the R vibrator 25 will be described. As shown in FIG. 3, an electric circular magnet 31 having a thin coil built in a protective case 30 is provided. An eccentric weight 32 functioning as a rotor rotatably supported by the magnet 31 is provided. That is, this magnet 31
When a drive signal is supplied from the drive circuit 14 (see FIG. 1) through the connection cord L to the
The eccentric weight 32 is rotationally driven by the cooperation of the eccentric weight 32 and the eccentric weight 32, and the entire R vibrating body 25 vibrates due to the centrifugal force acting on the eccentric weight 32 during this rotation.

Here, the magnet 31 and the eccentric weight 3
2 and the like function as a drive motor. Further, by changing the frequency or voltage of the drive signal supplied to the magnet 31, the rotation speed of the eccentric weight 32 can be changed,
Thereby, the drive gain G (magnitude of vibration) of the vibrators 25 to 27 can be changed. On the other hand, the electric seat belt device 3 for the driver sitting on the driver's seat 22
5A, the one end of the seat belt 36 is fixed to a fixing portion 37, and is wound around a seat belt retractor 40 via a buckle portion 38 and a shoulder support portion 39, as shown in FIG. It is configured to be taken.

As shown in FIG. 4B, a drive motor 41 connected to the drive circuit 17 is connected to the retractor 40. By driving the drive motor 41, the seat belt The tension of 36 can be changed. By repeating the normal rotation and the reverse rotation of the drive motor 41 at high speed every minute time,
The seat belt 36 can be vibrated. Next, a notification control routine executed by the control unit CU will be described with reference to the flowcharts of FIGS. However, the reference symbol Si (i = 1, 2, 3,...) In the figure indicates each step.

When the navigation system 1 is turned on, the above-described route guidance control program is first executed, and preparation work necessary for route guidance such as setting a destination is performed. The map and the travel route are displayed, and the vehicle is guided based on the displayed travel route and starts moving toward the destination. The notification control is started at the same time as the start of the movement. When this control is started, first, a predetermined distance (for example, about 1
Km) The partial movement route data ahead is read (Sm).
1).

Next, based on the partial movement route data, when the vehicle is not approaching the destination (S2: No),
When the road traffic information is received by the radio beacon receiver 13 (S3: Yes), the W vibrator 27 is driven in the first pattern for a predetermined time (S4). That is, as shown in FIG. 9, the W vibrating body 27 vibrates at a drive gain G0 (minimum gain at which the driver can feel the vibration), such as “bead bead, bead bead,...”. By the first pattern in which the period is continued twice each time, for example, the vibration is performed for about 3 seconds. Thus, it is notified that the road traffic information has been received.

When there is no intersection between the current position and the position a predetermined distance ahead (S5: No),
S1 to S5 are repeatedly executed. When an intersection is detected ahead (S5: Yes), a distance X from the current position to the next intersection is calculated by calculation based on the intersection information and the partial movement route data (S6). When the intersection distance X is equal to or longer than the notification preparation distance of 700 m (S7: No), the process returns to S1 without any notification.

However, although the intersection distance X has been reduced to less than the notification preparation distance of 700 m, the predetermined notification distance of 300 m
In the above case (S7: No, S8: Yes), when the drive motor 41 is not driven in a vibrating manner (S13: No),
The seat belt 36 of the retractor 40 is vibrated by repeatedly driving the drive motor 41 to rotate forward and reverse at a high speed every minute time (S14). Next, the W vibrating body 27
Are driven in the second pattern (S15). That is, as shown in FIG. 9, the W vibrating body 27 has a drive gain G such as “bead-by-bead, bead-by-bead,...
Are vibrated by the second pattern of “G0”, in which the vibration period is continued three times. Thereby, it is notified that the next intersection is not approaching the predetermined notification distance but is within the notification preparation distance.

Here, as the vehicle approaches the intersection, the warning is given via the vibration of the seat belt 36 of the seat belt retractor 40, and then the W vibrating body 27 actually vibrates. Surprise and discomfort
With a simple mechanism, it can be effectively alleviated. By the way, when the traveling state is changed based on the vehicle speed signal while moving toward the intersection to the predetermined notification distance, a process of changing the vibration mode of the drive gain G of the W vibrating body 27 according to the change is executed. (S16).

That is, in this vibration mode changing process, W
The driving gain G of the vibrating body 27 is driven with a gain slightly (Δ) weaker than the gain G0 in the acceleration state, and is a gain slightly larger (Δ) than the gain G0 in the deceleration state. Driven. On the other hand, when the vehicle speed returns from the acceleration state or the deceleration state to the steady state, the vehicle returns to the original drive gain G0 and is driven. Next, when the intersection distance X is reduced to less than the predetermined notification distance of 300 m (S7 / S8: No, S9: Yes), the W vibrator 27, the R vibrator 25, L vibrator 26
Are respectively driven.

That is, using the distance as a parameter, a notification point is set at a point about 300 m before the intersection, and when a route is guided before each intersection, the W vibrating body 27 is driven before reaching the notification point. At the same time, after reaching this notification point, the vibrating body 25 to
27 is selectively driven. When the guidance direction at the next intersection is a left turn (S17: left turn), the L vibrator 26 determines that the drive gain G is “G0” and the drive cycle T is “T0”.
It is driven under the driving condition of "0" and in the third pattern (S18).

This third pattern, as shown in FIG. 9, sets the driving cycle T0 to about 2 seconds and sets “bead, bead, bead,
As shown in the figure, the drive gain G is set to G0 and the vibration period is periodically repeated to vibrate. That is, the vibration of the L vibrating body 26 can accurately and reliably recognize that the guidance direction at the next intersection is the “left direction”.

When the guidance direction at the next intersection is a right turn (S17: right turn), the R vibrator 25 is driven under the condition that the drive gain G is "G0" and the drive cycle T is "T0".
In addition, it is driven in the third pattern (S19). That is, the vibration of the R vibrator 25 can accurately and reliably recognize that the guidance direction at the next intersection is the “right direction”. When the traveling state is changed based on the steering angle signal while moving toward the intersection until the intersection distance X becomes 300 m to 101 m, the driving of the R vibrating body 25 or the L vibrating body 26 is performed according to the change. A process of changing the vibration mode of the gain G is executed (S20).

That is, in the vibration mode changing process, when the R oscillating body 25 is being driven in the right turning state, the driving gain G thereof is slightly increased (Δ) from the driving gain G0. When the L vibrator 26 is driven with a gain or when the L vibrator 26 is driven, the drive gain G is
The drive is performed with a gain slightly (Δ) weaker than the drive gain G0. Conversely, when the R vibrating body 25 is driven in the left turning state, the driving gain G is
When the L-vibrator 26 is driven with a gain slightly lower than the drive gain G0 (Δ) or when the L vibrating body 26 is driven, the drive gain G is slightly higher (Δ) than the drive gain G0. Driven by

By the way, when returning to the straight traveling state,
The driven R vibrating body 25 or L vibrating body 26 returns to the original drive gain G0 and is driven. On the other hand, when the guidance direction at the next intersection is straight ahead (S17: straight ahead), the W vibrator 2
7, the drive gain G is “G0” and the drive cycle T is “T0”
(S2)
1). That is, the vibration of the W vibrating body 25 can accurately and reliably recognize that the guidance direction at the next intersection is “straight ahead”.

Then, while moving toward the intersection until the intersection distance X becomes 300 m to 101 m, based on the vehicle speed signal,
When the driving state is changed, W is set to W, as in S16.
A process of changing the vibration mode of the drive gain G of the vibrator 27 is executed (S22). Next, when the intersection distance X is reduced to less than 100 m (S7 to S9: No, S10: Ye
s), the currently driven W vibrator 27 or R vibrator 2
The 5 or L vibrating body 26 is driven under the driving condition of the driving gain G of "G1" and the driving cycle T of "T0", and in the third pattern (S23). Here, drive gain G1> drive gain G0.

When the traveling state such as acceleration or deceleration is changed while moving toward the intersection until the intersection distance X becomes 50 m, the drive gain G of the W vibrating body 27 is substantially similar to S22. At the time of acceleration gain (G1 +
Δ), and a process of changing to the drive gain (G1−Δ) during deceleration is executed (S24). Further, when the running state such as turning right or turning left is changed, the driving gain G of the driven R vibrating body 25 or L vibrating body 26 is changed to the driving gain (G1 + Δ) in substantially the same manner as in S20. ) Or the process of changing to the drive gain (G1−Δ) is executed (S
twenty five).

Next, when the intersection distance X is reduced to less than 50 m (S7 to S10: No, S11: Yes), the currently driven W vibrating body 27 or R vibrating body 25 or L vibrating body 26 The driving is performed in the third pattern under the driving condition that the driving gain G is “G2” and the driving cycle T is “T0” (S26). Here, drive gain G2> drive gain G1. Then, while moving toward the intersection until the intersection distance X becomes 50 m, the drive gain G of the W vibrating body 27 is changed to the drive gain (G2 + Δ) during acceleration, while the drive gain is changed during deceleration, as in S24. A process for changing to (G2−Δ) is executed (S27).

Further, substantially in the same manner as in S25, when turning right or left, the driven R vibrator 25 or L
A process for changing the drive gain G of the vibrating body 26 to the drive gain (G2 + Δ) or the drive gain (G2−Δ) is executed (S28). Next, when the intersection distance X is reduced to less than 30 m (S7 to S11: No, S12: Yes), the currently driven W vibrating body 27, R vibrating body 25, or L vibrating body 26 has the drive gain G Are driven in the third pattern under the driving condition that the driving cycle T is set to “G3” and the driving cycle T is set to “T0” (S29). Here, drive gain G3> drive gain G2.

While moving toward the intersection until the intersection distance X becomes 10 m, the W vibrating body 2 is moved in the same manner as in S27.
7 is changed to the drive gain (G2−Δ) at the time of acceleration, and is changed to the drive gain (G2 + Δ) at the time of deceleration (S30). Further, substantially in the same manner as in S28, when turning right or left, the driven R
A process of changing the drive gain G of the vibrating body 25 or the L vibrating body 26 to the drive gain (G3 + Δ) or the drive gain (G3−Δ) is executed (S31).

When the intersection distance X finally becomes 10 m (S7 to S12: No), the currently driven W vibrating body 27, R vibrating body 25 or L vibrating body 26
The driving is performed under the driving condition that the driving gain G is “G4” and the driving cycle T is “Tα” set according to the turning angle of the intersection (S32). Here, drive gain G4> drive gain
G3. Here, the turning angle of the intersection is obtained based on the map information and the intersection information. Further, as shown in FIG. 10, the driving cycle Tα according to the turning angle of the intersection is obtained by calculation based on the data of the driving cycle table for the turning angle of the intersection.

That is, when the turning angle is such that a general cross-shaped intersection is turned at a substantially right angle (90 °), the normal driving cycle T is “T0”, but the driving cycle T is set shorter as the turning angle is larger. Is done. Next, based on the current position and the partial movement route data, until the vehicle passes through the intersection (S33: N
o), S32 to S33 are repeatedly executed. When the vehicle has passed the intersection (S33: Yes), the driving of the driven W vibrating body 27, R vibrating body 25, or L vibrating body 26 is stopped (S34), and the process returns to S1. by the way,
Based on the loaded partial travel route data,
For example, when approaching about 200m to 300m ahead (S2:
Yes), the W vibrating body 27 is driven in the fourth pattern (S
35).

That is, as shown in FIG. 9, the W vibrator 27 is driven by a fourth pattern in which the drive gain G is "G0" and the vibration period is continuous, such as "B ...". The vibration of the W vibrating body 27 according to the fourth pattern notifies that the destination is approaching. Next, as in S16,
The drive gain G of the W vibrating body 27 is changed to the drive gain (G
2 −Δ), while the drive gain (G2 +
The process of changing to Δ) is executed (S36). Then, while moving until reaching the destination (S37: No), S35 to S36
Is repeatedly executed. Finally, when the vehicle arrives at the destination (S37: Yes), the driving of the W vibrating body 27 is stopped (S38), and the process returns to S1.

Next, the operation of the notification control at the time of route guidance by the navigation system 1 configured as described above will be described. For example, as shown in FIG. 11, the liquid crystal display 9 displays a road map near the current position during traveling, and displays a travel route ML leading to the destination by, for example, a "red thick line". Furthermore, the current position V of the own vehicle
1 to V7 are displayed as “red triangle marks”. At this time, it is assumed that there is an intersection K that turns sharply to the left in front of the traveling road. However, it is assumed that there is a left curve LC and a right curve RC on the way to the intersection K.

When the vehicle travels to the vehicle position V1 by the route guidance based on the moving route ML, that is, when the vehicle approaches the intersection K to a distance X of about 700 m, first, the vibration of the W vibrating body 27 is notified. Then, the seat belt 36 of the retractor 40 is vibrated, and immediately thereafter, the W vibrating body is moved until the vehicle moves to the vehicle position V2 (a position about 300 m before the intersection K, which is a predetermined reporting distance from the intersection K). 2
7 are driven in the second pattern. During this movement, the drive gain G is changed to the drive gain (G0-Δ) during acceleration, while being changed to the drive gain (G0 + Δ) during deceleration.

That is, when the driver swings rearward due to acceleration and presses the W vibrating body 27, the W vibrating body 27
Is driven with a weaker drive gain (G0−Δ), but when the driver swings forward due to deceleration and separates from the W vibrating body 27, the W vibrating body 27
+ Δ), the magnitude of the vibration transmitted to the driver becomes substantially constant, and the guidance direction at the intersection can always be stably reported to the driver.

Then, since the vehicle turns left at the intersection from the time when the vehicle travels to the own vehicle position V2 until the vehicle moves to the own vehicle position V3 (approximately 100 m before the intersection K), the L vibrator 26 has the drive gain G0 and the drive It is driven with a period T0. By moving the left curve LC during this movement, when the vehicle turns left, the driver swings to the right and the thigh of the left leg rises, but the driving gain G of the L vibrating body 26 is reduced. Since it is changed to (G0 + Δ) and the L vibrating body 26 vibrates more, the vibration of the L vibrating body 26 can be notified to the driver with substantially the same strength.

Next, since the vehicle turns left at the intersection from the time the vehicle travels to the vehicle position V3 to the position of the vehicle position V4 (approximately 50 m before the intersection K), the L vibrator 26 has the drive gain G1 and It is driven in the drive cycle T0. By moving the right curve RC during this movement, when the vehicle makes a right turn, the driver swings to the left so that the thigh of the left leg sinks in the seat cushion 23. Since the drive gain G is changed to (G1−Δ) and the L vibrating body 26 vibrates smaller, the vibration of the L vibrating body 26 can be notified to the driver with substantially the same strength.

Next, since the vehicle turns left at the intersection from the time when the vehicle travels to the own vehicle position V4 until the vehicle moves to the own vehicle position V5 (approximately 30 m before the intersection K), the L vibrator 26 has the drive gain G2 and It is driven in the drive cycle T0. Further, since the vehicle turns left at the intersection from the time when the vehicle travels to the own vehicle position V5 to the time when the vehicle moves to the own vehicle position V6 (about 10 m before the intersection K), the L vibrator 26 has the drive gain G3 and the drive period T0. Driven. Then, the L vibrator 26 is driven with a drive gain G4 and a drive cycle Tα slightly shorter than T0 from when the vehicle has traveled to the vehicle position V6 to when the vehicle has moved to the vehicle position V7 passing through the intersection K. Thereby, it turns out that the intersection K bends slightly acutely.

Here, the notification control and the control unit CU shown in FIGS. 5 to 8 correspond to the notification control means, such as a retractor 40 for winding the seat belt 36 and a drive motor 41 for driving the retractor 40 to rotate. Is vibration adding means, and this vibration adding means corresponds to a notice means. In addition, the control unit CU, the notification control program, the vibrating body 2
A notification device is constituted by 5 to 27 and the like.

As described above, the R vibrating body 25 and the L vibrating body 26 are provided at different positions on the seat cushion 23 of the driver's seat, respectively, and the W vibration is placed at the center of the width of the seat back 24 of the driver's seat. The body 27 is provided, and the distance from the current position to the intersection is a predetermined notification distance (for example, about 300
m) In the above case, since the W vibrating body 27 of the seat back 24 is driven, it is possible to reliably notify that the vehicle is approaching the intersection although the distance is longer than the predetermined notification distance.

When the distance from the current position to the intersection becomes less than the predetermined notification distance, the W vibrating body 27, the R vibrating body 25, and the L vibrating body 26 correspond to straight ahead, right turn, and left turn, respectively.
, The driver overlooks the moving route ML displayed on the liquid crystal display 9 or misses the intersection guidance by voice, even if the driver is sitting on the driver's seat 22 in any posture. If so, it is possible to notify that the distance to the next intersection is within the predetermined notification distance, and at the same time, it is possible to notify the guidance direction at the intersection effectively and reliably. In addition, there is no inconvenience to passengers other than the driver, such as inconvenience to passengers listening to radio broadcasts and music.

In particular, when the hearing-impaired person drives, even if the guidance direction at the next intersection displayed on the display is overlooked, the guidance direction at the intersection can be reliably notified by the vibration of the vibrating body. Also, since only one vibrating body 25 to 27 is driven to notify the guidance direction,
The guidance direction can be effectively notified by a small number of vibrators, and the driving power when these vibrators 25 to 27 are driven can be minimized.

Further, since the W vibrating body 27 actually vibrates after the notice is given via the vibration of the seat belt 36 of the seat belt retractor 40, the surprise and discomfort of the driver can be reduced by the notice with a simple mechanism. And can be effectively alleviated. Furthermore, since the drive cycle T of the vibrators 25 to 27 is shortened as the bend angle of the intersection K is larger, the degree of the bend angle can be more effectively and easily reported by the drive cycle T.

Next, a modified embodiment in which the above-described embodiment is partially modified will be described. 1) The predetermined notification distance at the time of route guidance may be arbitrarily settable by the driver by manual operation, or may be corrected such that it increases as the traveling speed increases. 2] When going straight ahead at the intersection, these three vibrators 25 to 27 may be simultaneously driven to notify. 3] A pair of right and left vibrators (WR vibrator and WL vibrator) are provided on the seat back 24, and the WR vibrator and the R vibrator 25 are simultaneously driven when turning right, while the WL vibrator and the L vibrator are driven when turning left. 26 may be driven simultaneously. Alternatively, a plurality of vibrators may be provided at different portions of the seat cushion 23 and the seat back 24, respectively, and a combination thereof may be vibrated to notify a right turn or a left turn.

4) When approaching the intersection, the vibrating body 25
Prior to the vibration of .about.27, instead of the notice vibration of the seat belt 36 by the seat belt retractor 40, the notice may be given by sounding a buzzer or blinking a lamp. 5] The drive gain G of the vibrators 25 to 27 may be continuously increased as the vehicle approaches the intersection. 6] The basic drive gain G0 of the vibrators 25 to 27 is
Depending on the driver's clothes, the size may be set to any size by manual operation according to the driver's favorite size.

7] When passing through the intersection and moving away from the intersection, the drive gain G of the vibrators 25 to 27 may be gradually reduced, and the drive cycle T may be gradually increased. 8] When traveling on a highway, the approach of a branch or an interchange may be notified by the vibrations of the vibrators 25 to 27, and may be driven in a vibration pattern different from that of a general road.

9) The above-described notification point may be set as a parameter until the vehicle reaches each intersection determined in consideration of the vehicle speed. That is, based on the current traveling speed (for example, about 50 km / hour), a notification point is set at a point (for example, about 400 m before the intersection) a predetermined time before (for example, about 30 seconds) before reaching the intersection. You may do so. In this case, particularly when traffic is slow and the traveling speed is low, the point where the notification point is very close to the intersection (for example, 20 to 30 m before).
The vibration body of the seat cushion is driven at an optimum time related to the vehicle speed, so that the guidance direction at the intersection can be effectively notified.

10] The vibrators 25 to 27 may be constituted by actuators that generate electric vibration such as piezoelectric elements and solenoids. 11] The storage medium for storing map information and audio information is D
Various media that can store information at a high density, such as a VD (digital video disc), may be used. 12] The present invention should not be construed as being limited to the above-described embodiments and modifications, and may be implemented using existing techniques or those skilled in the art to control each part of the embodiments without departing from the technical idea of the present invention. Various modifications may be made based on obvious techniques.

[0073]

According to the first aspect of the present invention, there is provided a navigation system which has map information including road intersection information and guides, via a display, a moving route on which a vehicle moves from a current position to a set destination. In the above, the vibration body and the notification control means are provided, so that even if the driver overlooks the route guidance displayed on the display or misses the intersection guidance by voice, the driver can be in any posture. As long as the driver sits on the vehicle seat, necessary information can be effectively and reliably notified to the driver by vibration of the vibrating body when necessary. Further, since the information is notified by vibrating the vibrating body, it does not disturb the radio broadcast or the music and does not cause any trouble to the occupants other than the driver.

Here, a plurality of vibrators are provided at different portions of the driver's seat, and the notification control means obtains the guidance direction at each intersection on the movement route from the intersection information, and determines the guidance direction from before the intersection until passing through the intersection. When selectively driving the vibrating body corresponding to the guidance direction among the plurality of vibrating bodies, the driver can easily and reliably recognize the guidance direction at the intersection based on the position of the vibrating body. (Claim 2).

Here, the plurality of vibrators are one vibrator provided at the center in the width direction of the seat back of the driver's seat, and a pair of right and left vibrators provided on the seat cushion of the driver's seat. In the case of including the body, the central vibrating body and the pair of left and right vibrating bodies are independently driven or driven in combination to effectively inform the guidance direction with a small number of vibrating bodies. (Claim 3).

Here, the notification control means drives the right vibrator provided on the seat cushion when guiding the intersection in the right-turn direction, and is provided on the seat cushion when guiding the intersection in the left-turn direction. When driving the left vibrating body, the direction of right / left turn at the intersection can be easily notified by the vibration of the corresponding vibrating body,
The cost of the vibrating body can be minimized, and the driving power for driving the vibrating body can be minimized (claim 4).

Here, there is provided a notifying means for notifying the vibration of the vibrating body, and when the notification control means drives the notifying means prior to driving any of the plurality of vibrating bodies, a notice of the vibrating body is provided. Is made, the vibrating body actually vibrates,
Even if the driver is unfamiliar with the vibration of the seat, it is possible to alleviate the surprise and discomfort when the vibrating body vibrates by the advance notice.

Here, in the case where the notice means comprises vibration adding means for vibrating the seat belt of the seat belt retractor, the notice is given by the vibration adding means via the vibration of the seat belt of the seat belt retractor. After that, since the vibrating body actually vibrates, the surprise and discomfort of the driver can be effectively alleviated by the advance notice with a simple mechanism (claim 6).

Here, at the time of route guidance in front of each intersection, the notification control means, if the distance from the current position to the intersection is equal to or more than a predetermined notification distance, one center provided at the center in the width direction of the seat back. When driving a vibrating body,
Due to the vibration of the central vibrator, it is possible to reliably report that the current position is closer to the intersection than the predetermined notification distance but is approaching the intersection (claim 7).

Here, when the distance from the current position to the intersection becomes less than a predetermined notification distance, the notification control means starts the central vibrator, the right vibrator, and the left vibrator according to straight ahead, right turn, and left turn, respectively. Is driven, the guidance direction at the intersection can be notified effectively and reliably at the same time that the distance to the next intersection has approached within the predetermined notification distance. Further, it is possible to minimize the driving power when driving the vibrating body (claim 8).

Here, when the drive gain for driving the vibrating body increases as the vehicle approaches the intersection, the notification control means increases the vibration of the vibrating body, thereby increasing the degree of approach to the intersection. The notification can be made easily and easily (claim 9). Here, when changing the vibration mode of these vibrating bodies according to running conditions such as deceleration, acceleration, turning, etc., the notification control means causes the driver's body to swing back and forth or left and right due to these running conditions. Also, since the vibration mode of the vibrating body is changed and the magnitude of the vibration transmitted to the driver is made constant, the guidance direction at the intersection can always be stabilized for notification.

Here, the notification control means sets the following: when the driving cycle of the vibrating body is shortened as the turning angle of the intersection becomes larger,
Due to the simplicity of changing the magnitude of the driving cycle of the vibrating body, the degree of the turning angle at the intersection can be effectively and easily reported (claim 11). Here, the notification control means, when notifying the information other than the route guidance at the intersection, when notifying by driving the central vibrating body in a different form from the route guidance for the intersection, the central vibrating body In addition to being able to be used in common, information other than route guidance can be identified and reported by driving in a different form from route guidance for an intersection (claim 12).

When the vibrating body has an eccentric weight and a motor for driving the eccentric weight to rotate, the vibrating body vibrates when the eccentric weight is driven to rotate by the motor. The vibration can be reduced in size and the cost can be advantageously reduced, and the magnitude of the vibration can be changed by changing the driving voltage of the motor.

Here, the vibrators are provided on the seat cushion and the seat back of the driver's seat, respectively, and the notification control means sets a predetermined notification point in front of each intersection by using the distance or time as a parameter. When driving the vibrating body of the seat back before reaching the notification point during route guidance before the intersection and driving the vibrating body of the seat cushion after reaching the notification point, the distance or time from each intersection As a parameter, the optimal point to be notified is set based on the driving state of the vehicle such as during normal driving or traffic congestion, and until reaching this notification point, the approach of the intersection by driving the vibrating body of the seat back In addition to being able to notify, after reaching the notification point, driving of the vibration member of the seat cushion at the intersection You can inform the guide direction (Claim 14).

Here, when the current position is far from the intersection, the central vibrator of the seat back is driven, and when the current position is near the intersection, a pair of vibrators provided on the seat cushion are moved according to the guiding direction at the intersection. In the case of driving, by driving the central vibrating body of the seat back, it is possible to notify that there is an intersection in the future, and by driving any of the pair of vibrating bodies provided on the seat cushion. , And the guidance direction at the next intersection can be notified (claim 15).

Here, when the vibrating body is provided on the seat cushion of the driver's seat, the driver simply sits on the driver's seat regardless of the posture, and necessary information such as intersection information. The information can be recognized effectively and reliably by the vibration of the vibrating body (claim 16). Here, when the plurality of vibrating members are provided on the seat cushion of the driver's seat, the driver simply sits on the driver's seat in any position, and the position of the vibrating member vibrates. Based on this, it is possible to easily and reliably recognize the guidance direction at the intersection (claim 17).

Here, when the notification control means drives the central vibrating body, the right vibrating body, and the left vibrating body in accordance with the straight ahead, right turn, and left turn at each intersection, the driver determines the traveling direction at the intersection. Can easily recognize that the vehicle is going straight by the vibration of the central vibrating body of the seat back, and can easily recognize that the vehicle is turning right by the vibration of the right vibrating body of the seat cushion. It is possible to easily recognize that the vehicle is turning left by the vibration of the left vibrating body (claim 18).

Here, when the notification control means sets the notification point by using the time required to reach each intersection determined in consideration of the vehicle speed as a parameter, the running state of the vehicle during traffic congestion is slow in a sloppy state. in case of,
The notification point is provided at a position very close to the intersection, and the guidance direction at the intersection is driven by the vibration member of the seat cushion at the optimal time based on the time perspective,
The guidance direction at the intersection can be efficiently notified (claim 19).

Here, the plurality of vibrators include a pair of right and left vibrators provided on the seat cushion of the driver's seat, and the notification control means uses the seat cushion when the intersection is guided in a right turn direction. When driving the provided right vibrating body and guiding in the direction of turning left at the intersection,
Since a pair of left and right vibrators are provided on the seat cushion of the driver's seat, the same effect as in claim 4 can be obtained (claim 20).

[Brief description of the drawings]

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

FIG. 2 is a perspective view of a driver's seat.

FIG. 3 is a perspective view of a vibrating body.

FIG. 4A is a schematic configuration diagram of an electric seat belt device, and FIG. 4B is a partially enlarged view of a retractor portion.

FIG. 5 is a part of a flowchart of notification control.

FIG. 6 is a part of a flowchart of notification control.

FIG. 7 is a part of a flowchart of notification control.

FIG. 8 is the remaining part of the flowchart of the notification control.

FIG. 9 is a diagram illustrating first to fourth vibration patterns.

FIG. 10 is a diagram showing a relationship between a turning angle of an intersection and a driving cycle.

FIG. 11 is a diagram showing a display example of a road map and a moving route displayed on a liquid crystal display.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Navigation system 9 Liquid crystal display 22 Driver seat 23 Seat cushion 24 Seat back 25 R vibrator 26 L vibrator 27 W vibrator 32 Eccentric weight 35 Electric seat belt device CU Control unit

Continued on front page F term (reference) 2C032 HB06 HC01 HD07 HD16 2F029 AA02 AB01 AB07 AB13 AC02 AC08 AC09 AC12 AC14 AC18 AC19 5H180 AA01 BB02 BB04 BB13 CC27 FF04 FF05 FF12 FF13 FF22 FF25 FF27 FF33

Claims (20)

[Claims] 1. A navigation system having map information including intersection information of a road and guiding a movement route of a vehicle from a current position to a set destination via a display, wherein a driver's seat of the vehicle is provided. A vibrating body driven by an electric signal and vibrating, and a notification control means for driving the vibrating body and informing a driver when a route is guided by the navigation system, and a notification device for a navigation system, comprising: . 2. A plurality of vibrators are provided at different portions of a driver's seat, and the notification control means obtains a guidance direction at each intersection on a moving route from intersection information, and from a point immediately before the intersection to a point at which the vehicle passes through the intersection. The notification device for a navigation system according to claim 1, wherein a vibrating body corresponding to the guidance direction among the plurality of vibrating bodies is selectively driven. 3. A plurality of vibrators, one vibrator provided at a widthwise central portion of a seat back of a driver's seat, and a pair of left and right vibrators provided on a seat cushion of a driver's seat. The notification device for a navigation system according to claim 1, further comprising a body. 4. The information control means drives a right vibrator provided on the seat cushion when guiding an intersection in a right-turn direction, and drives the right vibration body on the seat cushion when guiding an intersection in a left-turn direction. The notification device for a navigation system according to claim 3, wherein the provided left vibrator is driven. 5. A notice means for notifying vibration of the vibrating body, wherein the notification control means drives the notifying means prior to driving any of the plurality of vibrating bodies. A notification device for a navigation system according to any one of claims 1 to 4. 6. The alerting device for a navigation system according to claim 5, wherein said notice means comprises vibration adding means for vibrating a seat belt of a seat belt retractor. 7. At the time of route guidance before each intersection,
4. The information control device according to claim 3, wherein when the distance from the current position to the intersection is equal to or greater than a predetermined notification distance, the notification control means drives one central vibrator provided at a central portion in the width direction of the seat back. The notification device of the navigation system according to the above. 8. The information control means, when the distance from the current position to the intersection is less than the predetermined notification distance, corresponds to a straight vibration, a right turn, and a left turn, respectively. The notification device for a navigation system according to claim 7, wherein the body is driven. 9. The alerting device for a navigation system according to claim 1, wherein said alerting control means increases a drive gain for driving the vibrator as the vehicle approaches an intersection. 10. The navigation according to claim 1, wherein the notification control means changes a vibration mode of the vibrating body according to a traveling state such as deceleration, acceleration, or turning. System notification device. 11. The alerting device for a navigation system according to claim 10, wherein the alerting control means shortens the driving cycle of the vibrating body as the turning angle of the intersection increases. 12. The information control means, when notifying information other than route guidance at an intersection, performs notification by driving the central vibrator in a different form from route guidance for an intersection. An informing device for a navigation system according to any one of claims 3, 7, and 8. 13. The alerting device for a navigation system according to claim 1, wherein the vibrating body has an eccentric weight and a motor for rotating the eccentric weight. 14. The vibration body is provided on each of a seat cushion and a seat back of a driver's seat, and the notification control means sets a predetermined notification point using a distance or time as a parameter before each intersection, 2. The vibration body of the seat back is driven before reaching the notification point when the route guidance is performed before the intersection, and the vibration body of the seat cushion is driven after reaching the notification point. Notification device for navigation system. 15. When the current position is far from the intersection, the center vibrator of the seat back is driven. When the current position is near the intersection, a pair of vibrators provided on the seat cushion are driven in accordance with the guiding direction at the intersection. The notification device for a navigation system according to claim 3, wherein the notification is performed. 16. The alerting device for a navigation system according to claim 1, wherein the vibrator is provided on a seat cushion of a driver's seat. 17. The notification device for a navigation system according to claim 2, wherein the plurality of vibrators are provided on a seat cushion of a driver's seat. 18. The navigation system according to claim 3, wherein said notification control means drives a central vibrating body, a right vibrating body, and a left vibrating body, respectively, in accordance with straight ahead, right turn, and left turn at each intersection. Notification device. 19. The notification of the navigation system according to claim 14, wherein the notification control means sets the notification point using a time required to reach each intersection determined in consideration of a vehicle speed as a parameter. apparatus. 20. The plurality of vibrating bodies include a pair of left and right vibrating bodies provided on a seat cushion of a driver's seat, and the notification control means includes a pair of right and left vibrating bodies when the intersection is guided in a right turn direction. The notification device of the navigation system according to claim 2, wherein the right vibrator provided is driven and the intersection is guided in a direction of turning left.