JP2722896B2 - Navigation system for moving objects - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation apparatus for a mobile object which displays a recommended route on a map between a current position and a destination of the mobile object or between a departure point and a destination.

[0002]

2. Description of the Related Art FIG. 7 shows an example of a configuration of a conventional navigation device disclosed in, for example, Japanese Patent Application Laid-Open No. 2-28800. In the drawing, reference numeral 1 denotes a processing device;
ROM 12, RAM 13, and input / output interface I
/ O 14 is connected by a bus 15. Reference numeral 2 denotes a traffic information receiver, which receives traffic information such as traffic congestion, construction, regulation, and the like from a traffic information center by a quasi-microwave system, an induction radio system, or an FM multiplex system. Reference numeral 3 denotes a compact disk player which has a built-in CD-ROM which is a read-only external storage means for storing a road map, and has a large storage capacity and a high read speed.

[0004] A processing device 1 stores map data of the CD-ROM or traffic information received by a traffic information receiver 2.
, A CRT display for exchanging and displaying image signals, and 5 is an operation unit for a driver or the like to operate. Reference numeral 6 denotes a self-contained navigation type position sensor,
The sensor is composed of a distance sensor, and these sensor signals are arithmetically processed by the processing device 1 to specify the current traveling position of the moving body.

Next, the operation will be described with reference to the flowchart of FIG. Step 1 (S1).
Let S be a step. In the case of (1) , designation of a departure point, a destination point, route selection conditions and the like are input, and map information according to the input data is stored in the compact disc player 3.
And is displayed on the CRT display 4.
Here, route selection conditions (for example, shortest distance, shortest time, etc.)
Is selected, the processing device 1 searches for a candidate route. In step 2, it is determined whether a candidate route has already been input. If a candidate route has not been input, the process proceeds to step 3, and a candidate route is input from the operation unit.

Step 4 is a step for performing a search by adding a restriction condition (search within a certain distance from the candidate route) for searching for another route to the candidate route input in step 3, Step 5 is to select the most recommended route from the routes searched in step 4 based on the traffic information input from the traffic information receiver 2 and the route selection condition.
The image is displayed on the CRT display 4 as indicated by reference numeral 30 in FIG.

[0006] Step 7 is a judgment as to whether or not the moving body has arrived at the destination. If the vehicle does not arrive at the destination, the process returns to step 1 again and repeats the above routine. In this case, the process proceeds to step 8 because the candidate route has already been input in step 2. If there is no change in traffic information or a route selection condition, the process returns to step 1, but if there is a change in condition, the process proceeds to step 5,
A re-search is performed, and change display is performed again in step 6.

FIG. 9B shows this display example. In this figure, as a result of receiving the traffic jam information by the traffic information receiver 2,
In addition to displaying the traffic jam, the recommended route has been changed, and further, the fact that an accident has occurred at the point indicated by reference numeral 42 is displayed. As a result, a recommended route from the current position 41 of the moving object to the destination is re-searched as indicated by reference numeral 40 and displayed.

[0008]

The conventional navigation apparatus for a mobile body is configured as described above, searches for a recommended route (recommended route) between the current position and the destination, and displays a color change or the like, or Since only the accident information is displayed and the display means mounted on the vehicle has a limited space, the display area is small and the amount of information is also limited. For example, a display screen of about 6 inches which is mainly used at present has a problem of visibility, and can display only about 15 character strings. On a land where the geography is unknown, there is a problem that information on the current location of the moving object, intersections, and targets along the road cannot be recognized.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and makes it easy to confirm information on a recommended route, further increases the amount of detailed information on a recommended route, and confirms the current location of a moving object. It is an object of the present invention to provide a navigation apparatus for a mobile object that can be easily and securely checked with confidence and a recommended route and that can travel.

[0010]

SUMMARY OF THE INVENTION The mobile navigation system according to the present invention includes a moving body position detecting means for detecting a current position of the moving body, a map around the current position of the moving body is read from the map data storage means comprising a display control means for displaying the current location co a predetermined display area on a map around the current position of the moving body at the desired scale of the display unit, and a route searching unit for calculating a recommended route to a destination, the display control means,
A recommended route calculated by the route search means when displaying on a map around Hometown, map data in the map data storage means
Data and information related to the stored recommended route in association with, the current
This is additionally displayed along the recommended route displayed on the map around the location . Further, the display control means may be a route searcher.
The recommended route calculated by the step is displayed on a map around the current location.
Recommended route displayed on a map around your current location
Additional information related to the recommended route along with
Information related to the fine recommended route is to be additionally displayed in the corner of the recommended route.

[0011]

According to the navigation apparatus for a mobile object of the present invention, when a recommended route is determined and displayed , information related to the recommended route is additionally displayed along the recommended route .
The user follows the recommended route when checking the recommended route on the map
Also check the information related to the recommended route displayed in
It can be.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a navigation device for a mobile object. FIG. 2 is a schematic diagram of an operation unit operated by a driver.

In FIG. 1, reference numeral 1A denotes a processing unit for performing map display control and the like, 3 denotes a compact disc player,
Reference numeral 3A denotes a CD-ROM for storing map information and target data based on the map information. All target data of the map information stored in the CD-ROM 3A is stored in association with link data of an adjacent road. 4 is the CD-ROM
A CRT display for processing the map data of 3A by the processing device 1A, converting the image data into an image signal and displaying the image signal, 5A an operation unit for a driver or the like to operate, 6 a self-contained navigation type position sensor, a direction sensor, a distance sensor These sensor signals are arithmetically processed by the processing device 1A to specify the current traveling position of the moving body.

In FIG. 2, reference numeral 21 denotes a map switch;
Is a destination setting switch, 23 is a map enlargement switch, 2
4 is a map reduction switch, 25A, 25B, 25C, 2
5D is a scroll switch.

Next, the operation of the navigation device according to the present invention will be described. The processing device 1A calculates the current position and the traveling direction of the moving body from the signal of the self-contained navigation type position sensor 6. When the destination is set by the destination setting switch 22, the processing device 1A calculates a recommended route from the current position to the destination.

When the map switch 21 is operated, the processing device 1A calculates the map data around the calculated position coordinates of the current position,
The target data stored in association with the link data of the recommended route is recorded on the CD-R through the compact disc player 3.
The data is read out to the OM 3A, and as shown in FIG. 3, a map, a current location mark, a recommended route, and a target along a recommended route such as a hospital or a school are displayed on the CRT display 4.

The above is the basic operation of the navigation apparatus for a moving object according to the embodiment.
The basic operation related to map display of the processing device 1A will be described.

FIG. 4 is a flowchart showing the operation of the processing apparatus 1A of the present embodiment. In FIG. 4, when an operation signal of the map switch 21 is received in step 101,
In step 102, the map data around the current position coordinates is supplied to the CD-ROM
Read from 3A, CRT centering on the current position coordinates
The information is displayed on the display 4.

Next, at step 103, a current location mark is displayed at the center of the map displayed on the CRT display 4. If it is determined in step 104 that the destination has been set, step 1
At 05, the recommended route calculated by the processing device 1 when the destination is set is displayed on the map of the CRT display 4.
Finally, in step 106, a target along the recommended route is read from the CD-ROM 3A through the compact disc player 3 and a map on the CRT display 4 is displayed.

Next, another embodiment of the present invention will be described with reference to the drawings. The block diagram and the schematic diagram of the operation unit are the same as those in the above-described embodiment. All of the target data in the map information stored in the CD-ROM 3A is stored in association with node data indicating an intersection of road data.

Next, the operation will be described. The processing device 1A calculates the current position and the traveling direction of the moving body from the signal of the self-contained navigation type position sensor 6. Destination setting switch 22
When the destination is set according to, the processing device 1A calculates a recommended route from the current location to the destination.

When the map switch 21 is operated, the processing device 1A causes the calculated map data around the position coordinates of the current position to
The target data stored in association with the road node data of the recommended route is stored in the C through the compact disc player 3.
The data is read out from the D-ROM 3A and, as shown in FIG.
The T display 4 displays a map, a current position mark, a recommended route, and a target at a corner of a recommended route such as a hospital, a school, or the like.

The above is the basic operation of the navigation apparatus for a moving object. Next, the basic operation of the processing apparatus 1A for displaying a map will be described with reference to a flowchart.

FIG. 6 is a flowchart showing the operation of the processing apparatus 1A of this embodiment. In FIG.
Steps 1 to 103 are the same as those in the flowchart of FIG. If it is determined in step 104 that the destination has been set, in step 105, the recommended route calculated by the processing device 1 when the destination is set and the map on the CRT display 4 are displayed. Finally, in step 116, a target at a turning point such as a recommended route right / left turn is read from the CD-ROM 3A through the compact disc player 3, and the CRT is read.
It is displayed on the map on the display 4.

When the destination is set in this way and the recommended route to the destination is determined, the recommended route is displayed on the map, and the target is additionally displayed at the corner of the recommended route such as turning right or left. As a result, it is easy to recognize an intersection such as a right or left turn of the recommended route during traveling, and there is an effect that the destination can be surely reached without mistake.

[0026]

As described above, in the navigation apparatus for a mobile object according to the present invention, the recommended route is determined and displayed.
At the time, add information related to the recommended route along the recommended route
Displayed and recommended by the user when confirming the recommended route
You can see information related to the route at the same time
This makes it easy to identify the recommended route on the map.
You.

[Brief description of the drawings]

FIG. 1 is a block diagram of a navigation device for a mobile object according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of an operation unit of the system according to the embodiment of the present invention.

FIG. 3 is a map displayed on a CRT display according to an embodiment of the present invention.

FIG. 4 is a flowchart showing a basic operation of the processing apparatus according to the embodiment of the present invention.

FIG. 5 is a map displayed on a CRT display according to another embodiment of the present invention.

FIG. 6 is a flowchart showing a basic operation of a processing apparatus according to another embodiment of the present invention.

FIG. 7 is a block diagram showing a conventional navigation apparatus for a mobile object.

FIG. 8 is a flowchart showing the operation of a conventional navigation apparatus for a mobile object.

FIG. 9 is a diagram of a display screen of a conventional navigation apparatus for a mobile object.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1A Processing apparatus (route search means) 3 Compact disk player 3A CD-ROM 4 CRT display (display means) 5A operation part 6 Independent navigation type position sensor (moving object position detection means) 21 Map switch 22 Destination setting switch 23 Magnification switch 24 Reduction switch 25A, 25B, 25C, 25D Scroll switch

Continuation of the front page (56) References JP-A-3-282323 (JP, A) JP-A-5-67295 (JP, A) JP-A-2-28800 (JP, A) JP-A-3-150699 (JP) JP-A-59-196413 (JP, A) JP-A-60-57500 (JP, A) JP-A-2-181532 (JP, A) JP-A-61-45399 (JP, A) 64-33700 (JP, A) JP-A-60-221900 (JP, A) JP-A-4-310985 (JP, A) JP-A-4-40597 (JP, A) JP-A-4-336592 (JP, A A) JP-A-5-88611 (JP, A) JP-A-61-198016 (JP, A) JP-A-5-46087 (JP, A) JP-A-64-13415 (JP, A)

Claims (2)

(57) [Claims] 1. A moving object position detecting means for detecting a current position of a moving object, and a map around the current position of the moving object is read out from a map data storage means, and the current position is displayed together with the current position in a predetermined display area of a display means. Display control means for displaying a map of the surroundings at a desired scale, and route search means for calculating a recommended route to the destination, the display control means,
When displaying the recommended route calculated by the route searching means on the map around the current location, the map data storage
The information related to the recommended route stored in association with the map data in the column is displayed on the map around the current location.
A navigation device for a mobile object, which is additionally displayed along a recommended route . 2. A moving object position detecting device for detecting a current position of the moving object.
And the map around the current location of the moving object
Data from the data storage means to a predetermined display area of the display means.
The map around the current location together with the current location is displayed at the desired scale.
Display control means to be displayed in and the recommended route to the destination
Route search means for calculating, the display control means,
The recommended route calculated by the route searching means is
When displaying on the map around the current location, the map around the current location above
Follow the recommended route shown above and
Information that and related to the recommended route that information to the additional display, body navigation device moves you, characterized in that it is additionally displayed in the corner of the recommended route.