JPH11316126A - Car navigation system with weather satellite data reception function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display map information together with weather information, per form a route search considering the weather state, and display the result by providing a means for receiving the weather information from a meteorological satellite. SOLUTION: This car navigation device is provided with, for example, an atmospheric sensor part 7 for measuring the outside air temperature or atmospheric pressure, a RF-antenna part 8 for receiving the radio wave from a meteorological satellite, a meteorological satellite receiving part 9 for collecting information for atmosphere or cloud on the basis of the received information, and a control part 2. The position information and the weather information determined from the atmospheric sensor part 7 or the meteorological satellite data receiving part 9 are arithmetically composed, and the information for cloud or the like is two-dimensionally or three-dimensionally superposed and displayed on the map data. The weather state of the present position or target place can be predicated to display the predicted result together on the screen. Further, a route search considering the weather state of each point can be performed to display the route together with the distribution of rain clouds.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car navigation system, and more particularly to a car navigation system capable of displaying weather information in addition to map information.

[0002]

2. Description of the Related Art A car navigation system displays a route to a destination, a current position, and the like on a screen together with a two-dimensional map or a three-dimensional three-dimensional map, and is designed for the convenience of driving a car. Have been.

A conventional car navigation system is shown in FIG.
As shown in FIG. 1, a display unit / operation unit 1 which is a man-machine interface between a user and a car navigation device
A vehicle sensor unit 3 that captures various information such as speed information and forward / backward signals from a vehicle; a data storage unit 4 including a large-capacity memory (such as a CD-ROM) for storing map data and other information; An RF / antenna unit 5 for receiving radio waves from a (position information satellite), a car navigation unit 6 for obtaining an accurate current position and direction based on information such as a gyro and information from a position information satellite, and a car navigation unit A control unit 2 for comparing the information from the vehicle 6 and the information from the vehicle sensor unit 3 with the map data to obtain the current position on the map, and displaying the information corresponding to the operation content from the operation unit on the display unit; It has.

FIGS. 12 and 13 show display examples of a conventional car navigation device. As shown in FIG.
The points of the current location and the points of the destination are displayed on a map of the whole of Japan.
As shown in FIG. 7, an enlarged map of a partial area is displayed.
This enlarged map shows a route from the current position to the destination. FIG. 14 shows an example in which a map is displayed three-dimensionally, and the traveling route can be grasped from a three-dimensional viewpoint (bird view).

In the conventional car navigation device, the shortest route to the destination or a route passing through a designated pass point is searched, and the result is displayed as shown in FIG.

[0006]

However, the conventional car navigation system has no means for obtaining information on the weather at the destination and future weather changes.

[0007] There are devices having means for acquiring weather information of a specific area, but the service system is not nationwide,
There are disadvantages such as the information provided is not instantaneous and out of date. Therefore, there is a problem that the user cannot select a route to the destination in consideration of future weather conditions.

The present invention is to solve such a conventional problem, and provides a car navigation device which can display weather information together with map information and perform a route search in consideration of weather conditions. It is intended to provide.

[0009]

Therefore, according to the present invention, a receiving means for receiving weather information from a weather satellite is provided in the car navigation device.

For this reason, it is possible to receive weather data constantly transmitted from a weather satellite, display the map information and the weather information together, perform a route search in consideration of the weather conditions, and display the result. it can.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to a first aspect of the present invention is a car navigation system for receiving information on a current position from a position information satellite and displaying and guiding a traveling route, receiving weather information from a weather satellite. The user can grasp the weather condition of the destination before driving or while heading to the destination.

According to a second aspect of the present invention, the received weather information is displayed two-dimensionally superimposed on the map information, and the weather conditions at the destination and the current location can be displayed together with the map. it can.

According to a third aspect of the present invention, the received weather information is displayed three-dimensionally on the three-dimensional map information, and the destination and the current location are displayed three-dimensionally. The weather condition of the area can be displayed on the map in an easy-to-understand manner.

According to a fourth aspect of the present invention, a future weather condition at the current location is predicted from the received weather information, and the prediction result is displayed together with the prediction. How the weather at the current location changes. Can be predicted, and the prediction result can be displayed.

According to a fifth aspect of the present invention, a future weather condition of a destination is predicted from the received weather information, and the prediction result is also displayed. The user arrives at the destination. It is possible to predict and display weather conditions around the time.

According to a sixth aspect of the present invention, a route search to a destination is performed in consideration of received weather information, and a safe route avoiding a dangerous route predicted from weather is provided. I can guide you.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First Embodiment) As shown in FIG. 1, a car navigation system according to an embodiment of the present invention includes a display unit / operation unit 1 which is a man-machine interface between a user and a car navigation system. A vehicle sensor unit 3 that captures various information such as speed information and forward / backward signals from a vehicle; a data storage unit 4 including a large-capacity memory (such as a CD-ROM) for storing map data and other information; RF / antenna unit 5 for receiving radio waves from
A car navigation unit 6 for obtaining an accurate current position and direction based on information from a gyro or the like or information from a position information satellite;
And RF / antenna unit 8 for receiving radio waves from weather satellites
A meteorological satellite data receiving unit 9 for collecting information such as the atmosphere and clouds based on the received information; and a car navigation unit 6
And a control unit 2 for controlling display of map information to which weather information is added based on information from the weather satellite data receiving unit 9 and information from the vehicle sensor unit 3 and the atmospheric sensor unit 7.

The control section 2 arithmetically combines both the position information obtained from the car navigation section 6 and the vehicle sensor section 3 with the weather information obtained from the atmosphere sensor section 7 and the weather satellite data receiving section 9 and displays the result. First, information such as clouds is controlled so as to be superimposed and displayed on map data.

FIG. 2 shows an example of a display screen in which a two-dimensional shape of a cloud obtained from weather conditions is displayed on the map of the whole of Japan shown in FIG. 12, and FIG. FIG.
An example is shown in which the two-dimensional shape of the cloud obtained from the weather condition is superimposed and displayed on the map of the enlarged area shown in FIG.

As described above, by superimposing and displaying the status of the clouds on the map, the user can know the detailed weather status of the area where the vehicle will travel.

When the map is difficult to see due to the superposition of the cloud data, as shown in FIG. 4, a cloud or the like is displayed on the back of the map to clearly grasp the map data and the state of the cloud. be able to.

FIG. 5 shows an example in which the state of clouds is superimposed on the three-dimensionally displayed route shown in FIG. In this way, by overlaying clouds three-dimensionally on the stereoscopic image, a real weather condition can be displayed on the screen, and the user can specifically understand the weather condition of the area to which the user is going to go. be able to.

Further, the control unit 2 predicts future weather conditions based on weather data sent from a weather satellite and the current temperature, pressure, clouds and the like at the current location obtained from the information of the atmospheric sensor unit 7. It is possible to

FIG. 6 shows the weather information thus predicted as 2
FIG. 7 shows an example in which the two-dimensional map data and the state of the clouds are displayed together on the display screen of FIG. 4, and FIG.
Similarly, an example is shown in which a future weather forecast for the current location is also displayed on the display screen of FIG. 5 in which clouds are displayed on a stereoscopic image.

Although the user has been able to grasp the current weather condition at the current position by looking at the sky, there is a case where it is difficult to predict how the weather will change in the future. Many. The car navigation device according to the present embodiment can provide the user with effective information by displaying the future weather situation at the current position.

FIGS. 8 and 9 similarly show examples in which the weather condition of the destination is predicted, and the prediction result is also displayed on the display screen.

From the display screen of the car navigation device, the user can grasp how the weather condition at the destination changes or what the current weather at the destination is, and Preparations can be made according to the weather conditions of the country. For example, if the destination is snow, chains and snow tires can be prepared, and if it is rain, rain gear can be prepared, and preparations can be made according to the weather conditions.

As described above, this navigation device
Receiving weather data from weather satellites, displaying a cloud image on the screen of two-dimensional map data or three-dimensional stereoscopic images, and adding a program for performing weather prediction from information of weather data This makes it possible to analyze weather data at the destination or the present location to predict a weather change, and to display the prediction result on a screen of two-dimensional map data or a three-dimensional stereoscopic image. Therefore, the user can determine the weather condition by looking at the image.

(Second Embodiment) In the second embodiment,
A route search in consideration of weather conditions will be described.

In the route search of the conventional car navigation device, the shortest route to the destination or a route passing through a designated passing point is searched. Changes every moment, and in some cases, the selected route is likely to be dangerous.

When the destination is set through the operation unit 1, the control unit 2 of the car navigation device obtains a plurality of routes between the current position and the destination.
The final route is selected in consideration of the weather conditions in various places obtained from the weather data of the weather satellite. FIG. 10 shows an example of a display screen that displays the route thus obtained together with the distribution of rain clouds.

As described above, in this car navigation system, the route search is performed in consideration of the weather condition obtained from the data of the weather satellite, so that the destination is provided by the safe route avoiding the dangerous route predicted from the weather. Can be guided up to.

[0034]

As is apparent from the above description, the car navigation device of the present invention can display weather information superimposed on map information or display weather forecast results of a destination or a current location together with map information. it can.

In addition, the route to the destination can be searched in consideration of the weather condition, and guidance to the destination can be performed on a safe route avoiding a dangerous route predicted from the weather.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a car navigation device with a weather satellite data receiving function according to a first embodiment of the present invention;

FIG. 2 is a display example of the whole of Japan by the car navigation device with a weather satellite data receiving function according to the first embodiment;

FIG. 3 is a display example of an enlarged area by the car navigation device with a weather satellite data receiving function according to the first embodiment;

FIG. 4 is another display example of an enlarged area by the car navigation device with a weather satellite data receiving function according to the first embodiment;

FIG. 5 is a display example of a three-dimensional graphic display by the car navigation device with a weather satellite data receiving function according to the first embodiment;

FIG. 6 is a first display example accompanied by a weather forecast display of the current location by the car navigation device with a weather satellite data receiving function according to the first embodiment;

FIG. 7 is a second display example accompanied by a weather forecast display of the current location by the car navigation device with a weather satellite data receiving function according to the first embodiment;

FIG. 8 is a first display example accompanied by a weather forecast display of a destination by the car navigation device with a weather satellite data receiving function according to the first embodiment;

FIG. 9 is a second display example accompanied by a weather forecast display of a destination by the car navigation device with a weather satellite data receiving function according to the first embodiment;

FIG. 10 is a display example of a route search result displayed by the car navigation device with a weather satellite data receiving function according to the second embodiment of the present invention;

FIG. 11 is a block diagram showing a configuration of a conventional car navigation device;

FIG. 12 is a display example of the whole of Japan by a conventional car navigation device,

FIG. 13 is a display example of an enlarged area by a conventional car navigation device,

FIG. 14 is a display example of a three-dimensional graphic display by a conventional car navigation device,

FIG. 15 is a display example of a route search result by a conventional car navigation device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 display / operation unit 2 control unit 3 vehicle sensor unit 4 data storage unit 5 RF / antenna unit 6 car navigation unit 7 atmosphere sensor unit 8 RF / antenna unit 9 weather satellite data reception unit

Continued on the front page (51) Int.Cl. ⁶ Identification code FI G09B 29/00 G09B 29/00 F

Claims (6)

[Claims] 1. A car navigation device for receiving information on a current position from a position information satellite and displaying and guiding a traveling route, comprising: a receiving unit for receiving weather information from a weather satellite. Car navigation system with functions. 2. The received weather information is added to map information.
2. The car navigation device with a weather satellite data receiving function according to claim 1, wherein the car navigation device is displayed in a dimensional manner. 3. The car navigation device with a weather satellite data receiving function according to claim 1, wherein the received weather information is displayed three-dimensionally on map information represented three-dimensionally. 4. The car navigation device with a weather satellite data receiving function according to claim 1, wherein a future weather condition of a current location is predicted from the received weather information, and the prediction result is displayed together. . 5. The car navigation system with a weather satellite data receiving function according to claim 1, wherein a future weather condition of the destination is predicted from the received weather information, and the prediction result is displayed together. apparatus. 6. The car navigation device with a meteorological star data receiving function according to claim 1, wherein a route search to a destination is performed in consideration of the received weather information.