JP3228640B2 - Car navigation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle navigation device capable of efficiently displaying route guidance, route display, and optimum route from a current position to a destination by simple operations.

[0002]

2. Description of the Related Art Conventional on-vehicle navigation devices include a speed sensor, a distance sensor, and a global positioning device.
It has a function of guiding the route from the current position estimated by the system to the destination, and displaying the route over the map. Also, as disclosed in Japanese Patent Application Laid-Open No. 3-95699, a recent in-vehicle navigation device is generally known which has a function of storing in advance route information such as nodes and links of frequently designated main points. . In addition, map information is stored on a CD-ROM, and in recent years, information on ski resorts, golf courses, sightseeing spot facilities, and the like, as well as road maps, has been generally stored.

[0003]

However, according to the route guidance of the above-described conventional on-vehicle navigation device, for example, when a user gets caught in traffic congestion at a sightseeing spot or the like,
There is a problem in that when the set opening time of the transit point becomes too late, or when it is desired to change the set route halfway, a complicated operation is required again.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide an in-vehicle navigation device that realizes an optimal route guidance according to a driver's request.

[0005]

Means for Solving the Problems The present invention, in order to achieve the above object, a sensor for detecting the orientation and speed of the vehicle, and map information storage means for storing road information and character symbols information, and the sensor A current position estimating means for estimating the current position of the vehicle using the road information of the map information storing means, and a peripheral map centered on the current position obtained by the current position estimating means being obtained from the map information storing means and, to guide and map information display means for displaying a peripheral map and the current position on the display means, and input means for setting a desired destination and time of arrival of the driver, a plurality of via-point is a tourist spot or leisure facilities Consider the route information storage means in which the route information is stored in advance as a recommended course, the destination and arrival time set by the input means, the current date and time, and the current position. A route guidance unit for searching for a recommended course as a candidate from the recommended courses stored in the route information storage unit; and a recommended course searched by the route guidance unit as a recommended route course list on a display unit. Route information display means for displaying, map information from the map information display means, display means for displaying route information from the route information display means, and the map information storage means based on inputs from the sensor and the input means; It has the current position estimating means, the map information displaying means, the route information storing means, the route guiding means, the route information displaying means, and a control means for controlling an operation of the displaying means.
Things .

[0006]

According to the present invention, in the above configuration, the first
By having the route information storage means, the driver can receive an efficient sightseeing guide in consideration of the arrival time by a simple input operation of simply selecting from the transitable facilities displayed on the screen.

In addition, the route information storage means stores in advance route information to a destination including a plurality of transit points as recommended courses, and displays a list of recommended courses at the time of setting a route, so that the driver can make a recommendation. Only an input operation for selecting a course is required, and the route guidance time can be reduced.

Secondly, by having a time control means for checking the passage status of the route course set first,
By displaying a warning message when the scheduled arrival time is exceeded at a passing point on the way, the route setting can be changed promptly if a delay occurs from the initial schedule due to traffic congestion or the like.

[0009]

FIG. 1 is a block diagram showing a configuration of a vehicle-mounted navigation device according to a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a direction sensor for measuring the direction of a vehicle;
Is a speed sensor for measuring the speed of the vehicle, 3 is map information storage means for storing road information and background information, 4 is a travel locus obtained from the direction sensor 1 and the speed sensor 2, and road information stored in the map information storage means 3. Current position estimating means for estimating the current position of the vehicle from the road connection status of the road shape in
Is a map information display means for acquiring a peripheral map centered on the current position obtained by the current position estimating means 4 from the map information storage means 3 and displaying the peripheral map and the current position on the display means 10; Input means for setting arrival time, etc., 7
Is route guidance means for acquiring necessary information from the route information storage means 8 from the destination and arrival time, the current date and time, and the current location set by the input means 6 and setting an optimal route to the destination; The storage means, which is a characteristic part of the present invention, stores information on points of major facilities (representative sightseeing spots and leisure facilities) targeted for route guidance and road correspondence information, and stores required time between route guidance target points. In addition, storage of business hours at each point, information on regular holidays, storage of route information for guiding a plurality of waypoints as recommended courses, and the like are stored in advance.

Reference numeral 9 denotes route information display means for displaying the route obtained by the route guidance means 7 on the display means 10, and the display means 10 is a display such as a CRT. 11 is each sensor 1,
2 and 3 based on the input from the input means 6
These are control means (microcomputers) that control the operations of ５，5, 7〜10. Here, the current position estimating means 4 and the route guiding means 7 are included in the control means 11, the map information storing means 3 and the route information storing means 8 are constituted by memories, and the map information displaying means 5 and the route information displaying means 9 are It is included in the display means 10.

Next, the operation of the route guidance will be described with reference to the processing flow of the route guidance of FIG. 2 and the display example of the route guidance of FIG.

The current position estimating means 4 estimates the current position of the vehicle from the travel locus obtained from the direction sensor 1 and the speed sensor 2 and the road connection status of the road shape in the road information of the map information storage means 3. And map information display means 5
Acquires a peripheral map centered on the current position obtained by the current position estimating unit 4 from the map information storage unit 3 and displays the peripheral map and the current vehicle position 301 as shown in FIG. Is displayed.

Next, the route guidance means 7 acquires the route selection mode set by the driver by the input means 6 and the desired arrival time from the starting point (current position 301 of the vehicle) to the destination 302. Here, when the driver selects a recommended route course (Yes in S1 of FIG. 2, the same applies hereinafter), a recommended route course list exemplified in FIG. The recommended route course list is retrieved from the means 8 and displayed on the display means 10 by the route information display means 9 (S2).

When the driver selects the route course of FIG. 3B from the recommended route course list by the input means 6 (S3), the driver selects from the current position 301 of the vehicle as shown in FIG. 3C. The control means 11 calculates and guides the route to the destination 302 of the route course 303 thus completed (S4).

If the driver does not select the recommended route course by the input means 6 (No in S1), the driver sets the arrival time to another candidate destination.
(S5) The control means 11 compares the arrival time with the current time to calculate the remaining time (S6). A list of candidate destinations is displayed on the display means 10 by the route information display means 9 as a candidate destination list from the calculated time as a candidate destination list (S7).

Next, when the driver selects a destination from the candidate destination list by the input means 6 (S8), the control means 11 determines whether or not to end the setting of the destination.
(S9) If the setting is to be continued (No in S9), the route guidance unit 7 acquires the required time from the route information storage unit 8, and resets the remaining time. Then, a route course 303 from the current position 301 of the vehicle to the destination 302 as shown in FIG.

FIG. 4 is a block diagram showing the configuration of a vehicle-mounted navigation device according to a second embodiment of the present invention.
It has a time control means 12 for inputting the current position of the vehicle output from the current position estimating means 4 and outputting a warning message, and inputs the same to the input means 6 to the route guidance means 7 by the driver. .

FIG. 5 shows a processing flow of the portion related to the time control of FIG. 4, and the operation is almost the same as that of the first embodiment of FIG. 1, but only different points will be described. The current position of the vehicle is acquired by the current position estimating means 4 (S10), route guidance is displayed on the display means 10 (S11), and when a route is selected by the input means 6, the selected route is displayed (S12). Until 1)
This is the same as the embodiment.

Next, at the passing point of the route set by the input means 6, if the scheduled arrival time has passed due to traffic congestion or the like (Yes in S13), a warning message from the time control means 12 is displayed. It is displayed on 10 (S14). When the time control means 12 detects a delay in the arrival time at the passing point from the display on the display means 10, the driver can set a route again from the local point (Yes in S15).

[0020]

As described above, the in-vehicle navigation device according to the present invention provides an optimal traveling route in consideration of the arrival time of the vehicle from the current position to the destination displayed on the screen by a simple input operation by the driver. You can choose.

Further, the route information to the destination including a plurality of transit points is stored in advance in the route information storage means as a recommended course, and a list of recommended courses is displayed at the time of setting the route, so that the driver can use the recommended course. It is possible to easily shorten the route guidance time only by the input operation of selecting.

Further, by providing time control means for checking the passage status of the route course set first,
By displaying a warning message when the scheduled arrival time is exceeded at a passing point on the way, the route setting can be changed promptly if a delay occurs from the initial schedule due to traffic congestion or the like.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a vehicle-mounted navigation device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a processing flow of route guidance in FIG. 1;

FIG. 3 is a diagram showing a display example of the route guidance in FIG. 1;

FIG. 4 is a block diagram illustrating a configuration of a vehicle-mounted navigation device according to a second embodiment of the present invention.

FIG. 5 is a diagram showing a processing flow of a portion related to time control in FIG. 4;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Orientation sensor, 2 ... Speed sensor, 3 ... Map information storage means, 4 ... Current position estimation means, 5 ... Map information display means, 6 ... Input means, 7 ... Route guidance means, 8 ... Route information storage means, 9 ... route information display means, 10 ... display means, 11 ... control means, 12 ... time control means.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G01C 21/00 G08G 1/0969 G09B 29/10

Claims (6)

(57) [Claims] 1. A sensor for detecting the orientation and speed of the vehicle, and map information storage means for storing road information and character symbols information, by using the road information of the sensor and the map information storage means current vehicle Current position estimating means for estimating a position, and a peripheral map centering on the current position obtained by the current position estimating means is acquired from the map information storage means, and map information for displaying the peripheral map and the current position on the display means. display means and the input means and, route information storage means for routing information for guiding a plurality of via-point is a tourist spot or leisure facilities are stored in advance as a recommended course to set a desired destination and time of arrival of the driver The destination and the arrival time set by the input means, the current date and time, and the current position are taken into consideration, and the estimation stored in the route information storage means is performed. Route guidance means for searching for a recommended course that is a candidate from among courses; route information display means for displaying the recommended course searched by the route guidance means on a display means as a recommended course list; and the map information display means; A display unit for displaying map information and route information from the route information display unit; a map information storage unit, the current position estimating unit, the map information display unit, and the route based on inputs from the sensor and the input unit. An in-vehicle navigation device having information storage means, the route guidance means, the route information display means, and control means for controlling the operation of the display means. 2. A sensor for detecting the orientation and speed of the vehicle, background information indicating a road information, rivers, railways, and facilities, and a map information storage means for storing character symbol information, the map information storage with the sensor Current position estimating means for estimating the current position of the vehicle using the road information of the means, and a peripheral map centered on the current position obtained by the current position estimating means, obtained from the map information storage means, and displayed. Map information display means for displaying a surrounding map and a current position, input means for setting a desired destination and arrival time of a driver, and display of map information and route information from the map information display means and route information display means. A map information storage unit, the current position estimating unit, the map information display unit, and the route information based on inputs from the sensor and the input unit. Distribution display means, and control means for controlling operation of said display means, said control means, during the time between the arrival time and the current time, can be transited from the tourist spot or leisure facility An on-vehicle navigation device characterized in that various points are displayed on a display means as a candidate transit point list. 3. The in-vehicle navigation device according to claim 1, wherein said route information storage means stores point information of a main facility to be route-guided and road correspondence information. 4. The route information storage means stores a required time between route guidance target points.
2. The in-vehicle navigation device according to claim 1. 5. The in-vehicle navigation device according to claim 1, wherein said route information storage means stores information on business hours and regular holidays of each point. 6. The passing point first path course set, if it exceeds the time of arrival of scheduled, displays a warning message, that it has a time control means for requesting to re-set the path to the new The in-vehicle navigation device according to claim 1 or 2, wherein: