JPH10224291A - Mobile communication equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To receive a large number of information monetarily by using a portable telephone line for an incoming channel and a digital communication satellite broadcast wave for an outgoing channel. SOLUTION: On-vehicle equipment 1 is provided with data communication equipment 2 that uses a public radio channel 18, a satellite data receiver 3 that receives data from a digital communication satellite 20, a position measuring device 4 that measures a current position of its own vehicle, a display device 5 that displays the current position of its own vehicle and traffic information on a map, based on data received from the digital communication satellite and a controller 6 that controls each of parts and transmits an information presentation request passing through the data communication equipment 2. An information presentation device 11A or the like transmits return data, including a map mapping a point to be requested, its surrounding road information and advertisement information or the like to the on-vehicle equipment 1 via the digital communication satellite 20, based on the information presentation request received through the public radio channel 18 and a telephone line 15 from the on-vehicle equipment 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication device provided with an information display device for displaying the current position of a vehicle and traffic-related information.

[0002]

2. Description of the Related Art Conventionally, as this type of information display device,
Navigation systems are well known. The navigation device measures the position and azimuth of the own vehicle with a GPS and / or a vehicle speed sensor, an azimuth sensor, etc.
The configuration is such that the information is superimposed on the map information read from the CD-ROM or the IC memory as necessary. However, in the method of reading map information from a CD-ROM or the like, information availability is high, but all of the original map information must be stored in order to store all or part of Japan in a limited memory capacity. And a shortage of information occurred, and a large number of man-hours were required to compress the map data. Also, when a change in road conditions occurs, it is necessary to exchange a CD-ROM or the like in order to update the map data.
In some cases, a heavy burden is imposed on the user.

On the other hand, mobile communication has become possible due to the recent spread of mobile phones and the speeding up of digital communication. In addition, it has become possible to equip each vehicle with a wireless digital communication device to receive digital information via a communication satellite.

[0004]

However, implementing mobile communication using a mobile phone is not suitable for an environment in which communication information changes every moment, such as a car, in which the communication quality is poor and a large amount of information is exchanged. However, there is a problem in that it takes time and communication is interrupted on the way, so that it is not suitable for communication while moving, that is, for true mobile use.

[0005] Further, in information communication in a vehicle, the communication capacity of the uplink and the downlink need not be the same as long as the application is limited. Except for small-capacity communication such as telephone conversation, traffic information and the like are used. It makes sense to ask for large amounts of information outside the vehicle. That is, the amount of information in the uplink may be small, and if there is a line abnormality, the line capacity may be relatively small if affirmative measures such as redialing several times at worst are affirmed. On the other hand, the downlink requires instantaneous reception of various information such as maps, images, voices, and the like, so that an increase in communication capacity is a problem.

The present invention is to solve such a conventional problem. For the up line, the conventional mobile phone line is used, and for the down line, the digital communication satellite broadcast wave is used. It is an object of the present invention to provide a mobile communication device which receives a large amount of information.

[0007]

In order to achieve the above object, the present invention utilizes a client / server system, in which each vehicle on the client side determines the position of its own vehicle via a cellular phone line and transmits the data to the server. The server sends necessary map information and traffic information to the client via digital communication satellite broadcast waves, and the client receives the data and displays it on the display device. It is like that.
Further, on the server side, for example, in the case of a vehicle that can be managed for each IP address of the Internet, it is distributed as specific information for individual vehicles to a client vehicle that has sent the position information by using a technique such as a public key. be able to. As a result, it is possible to use a conventional mobile phone line for the up line and instantly receive large-capacity information using digital communication satellite broadcast waves for the down line.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention provides a data communication device using a public wireless line, a satellite data receiving device for receiving data from a digital communication satellite, and a current position of the own vehicle. A positioning device that measures the position of the vehicle, a display device that displays the current position of the vehicle and traffic-related information on a map based on data received from the digital communication satellite, and controls each unit and requests information provision through the data communication device. An in-vehicle device having a control device for transmitting, and an in-vehicle device through a telephone line and a digital communication satellite, based on an information provision request received from the in-vehicle device through a public wireless line and a telephone line. A mobile communication device including an information providing device for transmitting to a mobile communication line, a conventional mobile phone line is used for an up line, and a digital communication satellite broadcast wave is used for a down line. In use, it is possible to receive a large amount of information in an instant.

According to a second aspect of the present invention, there is provided the mobile communication apparatus according to the first aspect, wherein the positioning device is any one of a GPS, a vehicle speed sensor, an azimuth sensor, and an angular velocity sensor, or a combination thereof. The position of the vehicle can be accurately measured.

According to a third aspect of the present invention, the information providing apparatus is arranged in a server on the Internet, and the telephone line is a subscriber telephone network, an Internet provider, and an Internet communication network. It is a mobile communication device and can cover a wide area.

According to a fourth aspect of the present invention, the information specified on the information providing device side is any one of map information, traffic information, route search information, store information, general advertisement information, or a combination thereof. A mobile communication device according to claim 1, 2 or 3, wherein the mobile communication device can receive various information attached to road traffic.

According to a fifth aspect of the present invention, an information provision request from an on-vehicle apparatus sends a specific password and contract information together with positioning information, and transmits the information from a digital communication satellite according to the transmitted information. The mobile communication device according to any one of claims 1 to 4, wherein only a specific receiver can receive the information, and each client can be charged as needed.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a system configuration of a mobile communication device according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an on-vehicle device as a client, which is a data communication device 2 using a public wireless line 18, a satellite data receiving device 3 for receiving data from a digital satellite broadcast wave 21, and a current vehicle. Based on data received from digital satellite broadcast wave 21 and positioning device 4 equipped with GPS, vehicle speed sensor, direction sensor, angular velocity sensor, etc. for positioning, the current position of the vehicle and traffic-related information are displayed on a map. A display device 5 such as a CRT or a liquid crystal device, and a control device 6 for integrally controlling each unit and transmitting an information provision request through the data communication device 2 are provided. 1
Reference numerals 1A to 11N denote information providing devices that cover the entire region of Japan as servers, receive information providing requests from the in-vehicle device 1 via the telephone line 15, and transmit information specified from the contents of the information providing requests. Telephone line 15
A terminal device 12 for transmitting necessary information, a server 13 for processing necessary information, and a database 14 for storing necessary data. The telephone line 15 includes an ISDN and a dedicated line in addition to a general subscriber telephone network, and an Internet communication network can be connected to an end thereof via an Internet provider. The telephone line 15
Connected to a radio base station 17 through a telephone office 16,
Data is transmitted and received from the in-vehicle apparatus 1 from the wireless base station 17 via the public wireless line 18. A data communication service station 19 is connected via a telephone line 15, from which data is transmitted to a digital communication satellite 20, and a digital satellite broadcast wave 21 is transmitted from the digital communication satellite 20.

Next, the operation of this embodiment will be described with reference to FIG. When the moving vehicle wants to know the traffic-related information at the current position, first, the positioning device 4 measures the current position of the own vehicle, and outputs the data a to the control device 6. The control device 6 processes the current position data a of the own vehicle into data b requesting to be mapped and displayed on the map around the vehicle, and transmits the information base request data c from the data communication device 2 through the public wireless line 18 to the wireless base station. Send to 17. The information provision request data c is converted from the wireless base station 17 into data d suitable for the telephone line 15, and
6, the information is transmitted to the information providing device 11A closest to the own vehicle, and is received by the line terminal device 12. The line terminal device 12 sends the information provision request data d to the server 13 as data e, and the server 13 sends a map of the requested location based on the contents of the data e and road traffic information around the location, a surrounding parking lot and its vacancy. Data f such as information, store information, advertisements, and sightseeing guides is extracted from the database 14, and together with the information, data g in which a requested point is mapped and displayed on a map is created and sent to the line terminal device 12.
The content of the database 14 is constantly updated to the latest one. The line terminal device 12 converts the data g into data h for the telephone line 15 and sends it, and sends it to the data communication service station 19 through the telephone station 16. The data communication service station 19 converts the frequency of the data h into a digital satellite broadcast wave 21 via the digital communication satellite 20 as satellite broadcast data i. The satellite broadcast data i is received by the satellite data receiving device 3 of the on-vehicle device 1, sent to the control device 6 as received data j, processed by the control device 6, and displayed on the screen of the display device 5 as display data k. Is done.

As described above, according to the present embodiment, it is not necessary for the vehicle to have the map data, and the latest map data and the traffic related information around the map data are always received in a short time, and the screen of the display device is displayed. Can be displayed above.

In the present embodiment, the information provision request from the on-vehicle device sends the specific password and the contract information together with the positioning information, and the transmitted information specifies the information to be transmitted from the digital communication satellite. By allowing only the receiver to receive, it is possible to charge for each client.

[0017]

The present invention has the following effects as apparent from the above embodiment. 1) It is possible to instantaneously acquire a large amount of data, which is difficult with a public telephone line, and can receive information provision in real time while moving. 2) By making the public line a toll-free service and placing advertisements on information from communication satellites, satellite use costs can be reduced, information can be provided free of charge like current commercial broadcasting, and communication can be made free. It becomes possible. 3) Since traffic information such as VICS, regulation information, and various useful information can be used free of charge, a service from broadcasting to free intercommunication is possible. 4) In addition to map information, traffic congestion information, sightseeing information, special sale information, and the like can be provided to the user in real time, so that a new industry can be created and information that is very useful for the user can be distributed. 5) By allowing only specific recipients to receive information to be distributed, it is possible to charge for each client.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing a system configuration of a mobile communication device according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram showing an operation in the embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 vehicle-mounted device 2 data communication device 3 satellite data receiving device 4 positioning device 5 display device 6 control device 11A, 11N information providing device 12 line terminal device 13 server 14 database 15 telephone line 16 telephone station 17 wireless base station 18 public wireless line 19 data communication service station 20 digital communication satellite 21 digital satellite broadcast wave

Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI H04H 1/00 H04H 1/00 E H04M 11/08 H04M 11/08 // G08G 1/13 G08G 1/13

Claims (5)

[Claims] 1. A data communication device using a public wireless line, a satellite data receiving device for receiving data from a digital communication satellite, a positioning device for positioning a current position of a vehicle,
A display device that displays the current position of the vehicle and traffic-related information on a map based on data received from the digital communication satellite, and a control device that controls each unit and transmits an information provision request through the data communication device. Based on an information provision request received from the in-vehicle device via the public wireless line and the telephone line, and transmitting the specified information to the in-vehicle device through the telephone line and a digital communication satellite. A mobile communication device including an information providing device. 2. The mobile communication device according to claim 1, wherein the positioning device is one of a GPS, a vehicle speed sensor, an azimuth sensor, and an angular velocity sensor or a combination thereof. 3. The mobile communication device according to claim 1, wherein the information providing device is arranged on a server on the Internet, and the telephone line is a subscriber telephone network, an Internet provider, and an Internet communication network. 4. The information specified on the information providing device side includes map information, traffic information, route search information, store information,
The mobile communication device according to claim 1, wherein the mobile communication device is any one of general advertisement information or a combination thereof. 5. An information provision request from an on-vehicle apparatus sends a specific password and contract information together with positioning information so that only a specific receiver can receive information transmitted from a digital communication satellite based on the transmitted information. The mobile communication device according to any one of claims 1 to 4, wherein: