JPH09325040A - Map information display apparatus for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize and simplify an apparatus, solve a user's burden, etc., by eliminating the necessity of mounting a map information-storing device to a vehicle. SOLUTION: An onboard system 1 is provided with a position-measuring device 3, a display device 4, a data communication device 5 and a control device 6. An information provider 2A, 2B, 2C,... is provided with a line terminal 7, a server 8 and a database 9. The onboard system 1 and the information provide 2A, etc., are connected via a telephone station 12 to a public radio line and a general telephone line. The present position of a vehicle is measured by the position-measuring device 3, and the data is transmitted via the radio line to the predetermined information provider 2A, etc., connected onto an internet. At the same time, map information or the like is required to be returned. The information provider 2A, etc., takes out necessary information from the database 9, forms by the server 8 comprehensive data such as a map of the periphery, etc., and returns the data through the line terminal 7. The transmitted information is displayed at the display device 4 of the inboard system 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle map information display device used for a navigation device or the like.

[0002]

2. Description of the Related Art Conventionally, a vehicle map information display device used in a navigation device stores map information in a CD-ROM,
Alternatively, it is built in the IC memory and is configured to read out and display as needed.

[0003]

However, while the map information is highly available in the above-mentioned conventional configuration, the original map information is stored in order to store the whole of Japan or a part thereof in a limited memory capacity. All of the above could not be stored, resulting in a lack of information, and a great deal of man-hours were required to compress the map data. Further, when the road conditions change, it is necessary to replace the CD-ROM or the like in order to update the map data, which may be a heavy burden on the user.

The present invention solves the above-mentioned conventional problems and realizes miniaturization, simplification, elimination of user's burden, etc. by eliminating the need to mount a map information storage device on the vehicle side. It is an object of the present invention to provide a vehicle map information display device capable of being designed.

[0005]

In order to achieve the above object, the present invention makes it possible to equip each vehicle with wireless digital communication due to the recent popularization of mobile phones and the speeding up of digital communication. Therefore, by using this line, the map information is distributed from the information providing device to each vehicle and displayed.

As a result, there is no need to mount a map information storage device on the vehicle side, and it is possible to obtain a vehicle map information display device that can be downsized, simplified, and can reduce the burden on the user. .

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is connected to an on-vehicle display device, an on-vehicle data communication device using a public wireless line, an on-vehicle positioning device, and a communication line. With the information providing device, the current position of the vehicle is specified by using the positioning device, and the current position information is sent from the vehicle to the information providing device by the data communication device using the public wireless line, The map information specified based on the current position information is sent back from the information providing device to the vehicle, and the map information is displayed on the display device for the vehicle, and the map information is stored on the vehicle side. This has the effect of eliminating the need to install the device.

According to a second aspect of the present invention, in the first aspect of the present invention, the vehicle-mounted positioning device is constituted by any one of GPS, wheel speed, azimuth sensor, angular velocity sensor, or a combination thereof. Is.

According to a third aspect of the present invention, in the above-mentioned first or second aspect of the invention, the information providing device is arranged in a server on the Internet and is connected to a public line through an Internet provider and an Internet communication network. It is a thing.

The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the map information is any one of map information, traffic information, route search information, store information, or a combination thereof. Therefore, there is an effect that various kinds of information can be provided to the user in real time.

An embodiment of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a block diagram showing a vehicle map information display device according to an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram showing the vehicle map information display device applied to a vehicle. is there.

In FIGS. 1 and 2, 1 is an in-vehicle system, and 2A, 2B, 2C, ... Are information providers.

The in-vehicle system (client side) 1 includes
Positioning device (GPS unit) 3 for positioning the own vehicle position, display device 4 for displaying information on a driver, etc., data communication device (digital radio device) 5 responsible for telephone line connection, control device (on-vehicle device including modem 6a) 6 Is prepared.

The information providers 2A, 2B, 2C, ... Store line terminals 7, which are devices for connecting lines such as telephone lines and ISDN, a server system 7 for developing information on the Internet, and data thereof. Database 9
The server system 8 can receive information from the traffic information providing provider 11 as necessary.

The in-vehicle system 1 is a telephone station (telephone company) 12
Are connected by a public wireless line via a wireless transmission / reception antenna 13, and the information providers 2A, 2B, 2C, ... Are connected by a telephone station 12 by a telephone line cable 14.
In the example shown in FIG. 2, the server system 8 and the database 9
The information providing apparatus 10 including the above is provided in a server on the Internet 15, and is connected to the telephone company 12 through the public line 14 by the Internet provider 22A and the Internet communication network 14a.

The operation of the above arrangement will be described below with reference to the operation explanatory view shown in FIG.

First, when the moving driver wants to know the outline of the current position, the current position of the vehicle is measured by the positioning position 3, the data A is processed into the data B which can be transferred by the control device 6, and the data is transferred. The data is transferred from the communication device 5 to a server connected to the Internet via a wireless transmission / reception antenna 13 and a telephone station 12 via a wireless line. By this procedure, a predetermined information provider 2A (or 2B, 2C, ...) Connected on the Internet is requested to return information such as a map regarding the vicinity of the current location of the vehicle.

Corresponding information provider 2A that received the request
(Or 2B, 2C, ...) Inputs the position data of the relevant vehicle (client) and related data from the line terminal 7 (data B), retrieves the necessary information (data C) from the constantly updated database, and the client The server 8 creates the comprehensive data E that has been subjected to the processing D for placing road traffic information, parking lot availability, various store information, etc. on the surrounding map that displays the points requested by the
A reply process (data E) is performed via the line terminal 7 according to the Internet protocol.

On the side of the in-vehicle system 1, the data communication device 5 receives the information (data E) transmitted via the telephone line 12 and the wireless transmission / reception antenna 13 according to the procedure according to the procedure, and processes it using the control device 6. Then, it is converted into image information and displayed on the display device 4 (data F).

In the above method, when the vehicle side specifies the position of the own vehicle and requests the map data to the server through the digital line, it is treated as a terminal on the Internet and has an IP address. From the server side, each vehicle can be managed for each IP address, and individual map data can be distributed to the vehicle that has sent the position information.

Since the amount of data that can be exchanged is limited because it passes through a wireless line, the amount of data is not so large as far as the peripheral data of the vehicle is limited. Further, in the case of map information, since the data can be compressed into vector data or the like, the amount of information can be further reduced.

When the traffic information and the like are displayed on the map data in an overlapping manner, the vehicle-mounted device does not need any additional device for that purpose. This can be achieved by obtaining traffic information on the server side, creating it on top of the map data, and distributing it.

In the case of route search, it is realized by inputting the destination from the vehicle side by a keyword, specifying / searching for the destination, processing the route specifying process on the server side, and passing the result to the vehicle side. To do.

As described above, according to the present embodiment, it is possible to always refer to the latest map and the latest data related to the periphery without having the map data on the vehicle side.

[0025]

As described above, according to the present invention,
A data storage device such as a CD-ROM is not required on the vehicle side, the device can be downsized, and the weight of the vehicle can be reduced. Further, since all the heavy work such as route search is performed by the information providing device (server) side, the device on the vehicle side can be simplified. Further, if the latest map data is always prepared on the information providing device side, the data update on the vehicle side becomes unnecessary and the burden on the user can be eliminated. Further, in addition to the map information, it becomes possible to provide the user with the traffic jam information, the tourist information, the bargain information, etc. in real time, if necessary, so that the useful information for the user can be distributed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a vehicle map information display device according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing the vehicle map information display device applied to a vehicle.

FIG. 3 is an operation explanatory diagram of the vehicle map information display device.

[Explanation of symbols]

 1 In-vehicle system 2 Information provider 3 Positioning device (Global Position System: GPS) 4 Display device 5 Data communication device 6 Control device 7 Line terminal 8 Server 9 Database 10 Information providing device 11 Traffic information providing provider 12 Telephone station 22 Internet provider

Claims (4)

[Claims] 1. An in-vehicle display device, an in-vehicle data communication device using a public wireless line, and an in-vehicle positioning device,
An information providing device connected to a communication line, the current position of the vehicle is specified by using the positioning device, and the current position information is provided from the vehicle by the data communication device using the public wireless line. A map information display device for a vehicle, which is configured to send the map information specified based on its current position information to the vehicle from the information providing device and display the map information on the display device for the vehicle. . 2. A vehicle-mounted positioning device comprising a GPS, wheel speed,
The vehicle map information display device according to claim 1, which is configured by either an azimuth meter, an angular velocity sensor, or a combination thereof. 3. The vehicle map information display device according to claim 1, wherein the information providing device is arranged in a server on the Internet and is connected to a public line through an Internet provider and an Internet communication network. 4. The vehicle map information display device according to claim 1, wherein the map information is any one of map information, traffic information, route search information, store information, or a combination thereof.