JP2002064425A - Wide-area data delivery system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wide-area data delivery system that can safely make information offer service at a high speed and at a low cost to on-vehicle terminal equipment. SOLUTION: This wide-area data delivery system is constituted of on-vehicle terminal equipment 17, road-side terminal equipment 16, service offering equipment 12, and content offering equipment 11. Each on-vehicle terminal equipment 17 transmits request information from one of the road-side terminal equipment 16 to the service offering equipment 12 through wide-area communication and the equipment 12 requests the content offering equipment 11 to transmit contents to the road-side terminal equipment 16 by transmitting instruction information to the equipment 11. Based on the instruction information from the device 12, the content offering equipment 11 transmits the contents to the road-side terminal equipment 16. The equipment 16 relays the contents from the equipment 11 to the on-vehicle terminal equipment 17 through narrow-area communication.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wide area data distribution system, and more particularly to a wide area data distribution system for distributing data to a vehicle-mounted device using a wide area communication network and a narrow area communication device.

[0002]

2. Description of the Related Art With the spread of the Internet and mobile phones, a data transmission system for distributing music data and the like through a network has been realized. On the other hand, ETC
Like the (automatic toll collection) system, a system for transmitting tollgate entrance information and the like to a vehicle by narrow-area data communication between the vehicle and the ETC system is being realized.

In a data distribution system using the Internet, a user connects to an Internet provider via a telephone line or the like, accesses a service provider's homepage via the Internet with the provider, and can obtain desired data from the service provider.

In a data distribution system using a portable telephone, a user can obtain desired data directly from a predetermined menu or via the Internet.

[0005]

However, when a conventional data distribution system is used in a mobile environment, a mobile phone network is indispensable regardless of whether the Internet is used. At present, this mobile phone network has a low transmission rate and a high cost per transmission amount, so that when large-capacity data distribution is performed, it takes a long time to download desired data, and communication costs are high. There's a problem.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems and to provide a high-speed, low-cost, and safe information providing service to an in-vehicle information device.

[0007]

In order to solve the above-mentioned problems, the present invention requires a wide-area data delivery system including an on-vehicle device, a roadside device, a service providing device, and an information providing device. A short-range communication transmitting unit that transmits request information including the data name to the roadside device; and a short-range communication receiving unit that receives information including the request data from the roadside device. Area communication means, a service providing apparatus, a wide area communication means for communicating with the information providing apparatus, and means for relaying information from the information providing apparatus to the vehicle-mounted device, and the service providing apparatus receives request information from the roadside device. And means for transmitting instruction information to the information providing device to request information transmission to the roadside device based on the request information, and the information providing device is provided with a roadside device based on the instruction information from the service providing device. And configured to include a means for transmitting information to.

[0008] With this configuration, it is possible to safely provide an information providing service to the on-vehicle information device at high speed and at low cost.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to FIGS.

(First Embodiment) In a first embodiment of the present invention, request information is transmitted from a vehicle-mounted device to a service providing device via a DSRC roadside device, and a content providing device is transmitted by an instruction of the service providing device. Is a wide area data distribution system that transmits content to an on-vehicle device via a roadside device.

FIG. 1 is a conceptual diagram of a wide area data distribution system according to a first embodiment of the present invention. In FIG. 1, a content providing device 11 is a device that generates music data, map data, and other useful digital information as content, and distributes and provides the content using a service provided by the service providing device. The service providing device 12 is a device that provides digital content provided by the content providing device to a user by placing the digital content on a service menu.
The IC card management device 13 is a device for specifying a user by using an IC card. It is also possible to perform user authentication with an existing magnetic credit card or the like.

The media station 14 is a drive-through store such as a convenience store, a gas station, or a hamburger shop. The media station device 15 is a device that obtains service information provided by the service providing device via a general network or the like and provides the service information through a media station network. When the roadside device receives the service directly and individually from the service providing device via the wide area general-purpose network, the media station device may not be provided.

The roadside device 16 is installed in the media station, receives information provided from the service providing device via the media station device, and performs large-capacity low-cost communication such as DSRC wireless communication, private PHS communication, and optical beacon. Is a terminal that performs wireless transmission to the in-vehicle device. The in-vehicle device 17 is a device that is mounted on a vehicle and receives and outputs service information from a roadside device. The IC card 18 is a means to be inserted into the in-vehicle device and to prove that the in-vehicle device is a valid user when communicating with the roadside device.

FIG. 2 is a block diagram of the vehicle-mounted device of the wide area data distribution system according to the first embodiment. In FIG. 2, an IC card interface unit 21 is a means for communicating with an IC card. The short-range wireless communication unit 22 is a unit that performs communication with the roadside device. The display unit 23 is a display that displays a menu of services and displays information input by the user through the input unit 25. The sound output unit 24 is an audio unit that reproduces and outputs a voice guidance message of a service menu as voice and reproduces and outputs music data received as provided information, and outputs route guidance data received as provided information as route guidance data. It is also a voice guidance system that reproduces according to the algorithm. The input unit 25 is a unit for inputting information desired by the user, and is a remote controller, a touch panel, a keyboard, or the like. The control unit 26 has a storage unit, and is a unit that controls data processing between the plurality of devices.

FIG. 3 is a configuration diagram of a roadside device of the wide area data distribution system according to the first embodiment. In FIG. 3, a short-range wireless communication unit 31 is a unit for performing communication with an on-vehicle device. The display unit 32 is a unit that displays a processing state of the roadside device and instruction warning information. The communication unit 33 is a communication interface that communicates with the media station device, the content providing device, and the service providing device. The storage unit 34 is a means for storing programs, various data, and secret information for authentication. The input unit 35 is a unit for inputting various data. The control unit 36 is a unit that performs various types of information processing by linking these units. The display unit 32 and the input unit 35 may not be provided.

FIG. 4 is a configuration diagram of a content providing device of the wide area data distribution system according to the first embodiment. In FIG. 4, a display unit 41 is a means for displaying a processing state of the content providing apparatus and instruction warning information. Communication unit
Reference numeral 42 denotes a communication interface for communicating with the media station device, the roadside device, and the service providing device. Storage unit 43
Is means for storing programs and various data. The input unit 44 is a means for inputting content information and other various data. The control unit 45 connects these units,
A means for performing various information processing. The display unit 41 may not be provided.

FIG. 5 is a configuration diagram of a service providing device of the wide area data distribution system according to the first embodiment.
In FIG. 5, a display unit 51 is a means for displaying a processing state of the service providing apparatus and instruction warning information. The communication unit 52
It is a communication interface for communicating with a media station device, a roadside device, and a content providing device. The storage unit 53
It is a means for storing programs, various data, secret data for authentication, content charge tables, negative lists, and the like. The input unit 54 is a unit for inputting various data. The control unit 55 is a unit that performs various types of information processing by linking these units. The display unit 51 and the input unit 54 may not be provided.

FIG. 6 is a configuration diagram of an IC card management device of the wide area data distribution system according to the first embodiment. In FIG. 6, a display unit 61 is a means for displaying a processing state of the IC card management device and instruction warning information. Communication unit
62 is a communication interface for communicating with the service providing device. The storage unit 63 is means for storing programs, various data, negative lists, and the like. The input unit 64 is a unit for inputting various data such as a negative list.
The control unit 65 is means for performing various information processing by linking these units. The display unit 61 may not be provided.

FIG. 7 is a configuration diagram of an IC card of the wide area data distribution system according to the first embodiment. In FIG. 7, a communication unit 71 is a communication interface for communicating with an on-vehicle device. The storage unit 72 is a unit that stores contract information, IC card ID, authentication information, and the like. The control unit 73 is a unit that performs various types of information processing by linking these units.

FIG. 8 is a configuration diagram of a media station device of the wide area data distribution system according to the first embodiment. In FIG. 8, a display unit 81 is a means for displaying a processing state of the media station device and instruction warning information. The communication unit 82 is a communication interface that communicates with the service providing device, the content providing device, and the roadside device. The storage unit 83 is a means for storing programs and various data. The input unit 84 is a unit for inputting various data. The control unit 85 is a unit that performs various types of information processing by linking these units. The display unit 81 and the input unit 84 may not be provided. The media station device itself may not be provided.

The media station device is a device that relays data between a service providing device or a content providing device and a roadside device. Therefore, the data transmission / reception between the service providing device or the content providing device and the roadside device,
Functionally, even through the media station device, it is the same as transmitting and receiving data directly between the service providing device or the content providing device and the roadside device. In the following description of the operation, a case where there is no media station device will be described.

FIG. 9 is a diagram for explaining the operation of the wide area data distribution system according to the first embodiment.

The operation of the wide area data distribution system according to the first embodiment of the present invention configured as described above will be described with reference to FIG. The processing up to the receipt of the charge will be described.

(1) The user operates the IC card 18
Is inserted into the vehicle-mounted device 17. The in-vehicle device 17 reads the IC card information via the IC card interface unit 21,
The data is stored in the control unit 26. Here, the IC card information is an IC card ID, contract information, usage history, and the like. The contract information and the use history may not be required.

(2) The user inputs an access request to the service providing device 12 as request information from the input unit 25 of the vehicle-mounted device 17. Further, when the desired content is clear, the content name is input as the request information.
In this case, steps (7) and (8) are omitted. If the desired content is not clear, look at the menu and enter the content name.

(3) The in-vehicle device 17 transmits the IC card information and the request information to the roadside device 16 by a short-range communication means such as DSRC.
Send to The roadside device 16 transmits the received IC card information, request information, and roadside device identification information to the service providing device 12.

(4) The service providing device 12 checks the IC card ID and the contract information. (5)
Mutual authentication is performed with the roadside device 16. (6) The menu information is downloaded to the vehicle-mounted device 17 via the roadside device 16 that has been authenticated.

(7) The user selects a desired content from the menu displayed on the display unit 23 of the vehicle-mounted device 17 and
Input from the input unit 25.

(8) The on-vehicle device 17 transmits the request information again via the short-range wireless communication unit 22 and the roadside device 16 to the service providing apparatus.
Send to 12.

(9) The service providing device 12 transmits the identification information of the roadside device, the vehicle-mounted device identification information, and the request information, which have been authenticated, to the content providing device 11.

(10) The content providing device 11 transmits the content specified by the received request information to the roadside device 16.

(11) In the roadside device 16, the content providing device
The content received from 11 is transmitted to the in-vehicle device 17 by a short-range communication means such as DSRC.

(12) In the on-vehicle device 17, if the received content is map data, route data, guidance video data of a nearby facility, a movie or other video data, or text data of an e-mail or the like, Is output to the display unit 23. When the received content is music, route guidance voice information, a nearby facility guidance voice message, or when text data such as e-mail is converted into a voice message according to a user's specification, the content is output to the sound output unit 24. .

(13) The content providing apparatus 11 collects request information from the service providing apparatus 12 for a certain period, calculates a content providing fee, and charges the service providing apparatus 12.

(14) The service providing device 12 bills for each IC card management device 13 based on the billing breakdown.

(15) The IC card management device 13 confirms that the request is valid and makes a request to the user.

In addition, independently of the series of information providing processes, the following processes are regularly performed. (01) The content providing apparatus 11 transmits to the service providing apparatus 12 a list of contents provided by the apparatus itself and a content charge table indicating the charge. (02) The service providing device 12 generates service menu information based on the content fee table received from the content providing device 11. (03) The IC card management device 13 transmits a check list for performing a negative check of the IC card 18 to the service providing device 12. However, this processing may be omitted when the IC card management device 13 performs the processing collectively.

As described above, in the first embodiment of the present invention, a wide area data distribution system
The request information is sent to the service providing device via the roadside device, and the content providing device is
Since the content is transmitted to the in-vehicle device via the roadside device, the information providing service can be safely provided to the in-vehicle device at high speed and at low cost.

(Second Embodiment) In a second embodiment of the present invention, when reception of content is canceled, a signature is applied to the cancellation information by the roadside device and transmitted to the service providing apparatus. It is a data delivery system.

The basic configuration of the second embodiment of the present invention is the same as that of the first embodiment. The configurations of the vehicle-mounted device, the IC card management device, and the IC card are the same as those in the first embodiment.

FIG. 10 is a configuration diagram of a roadside device of the wide area data distribution system according to the second embodiment. In FIG. 10, a signature generation unit 37 is a unit that generates a signature of a roadside device.

FIG. 11 is a configuration diagram of a content providing device of the wide area data distribution system according to the second embodiment. In FIG. 11, the signature verification unit 46 is a unit that verifies the signature of the roadside device.

FIG. 12 is a configuration diagram of a service providing device of the wide area data distribution system according to the second embodiment.
12, the signature verification unit 56 is a unit that verifies the signature of the roadside device. Either the signature verification unit 46 or the signature verification unit 56 may be used.

FIG. 13 is a diagram for explaining the operation of the wide area data distribution system according to the second embodiment.

The operation of the wide area data distribution system according to the second embodiment of the present invention configured as described above will now be described.
With reference to FIG. 13, a description will be given of a process from when a user requests content to when information is provided and a corresponding charge is received. The process from the insertion of the IC card into the vehicle-mounted device to the reception of the content by the vehicle-mounted device is the same as that of the first embodiment.

(11-2) The user inputs to the input unit 25 of the vehicle-mounted device 17 to cancel the reception of the content, if necessary, before or before receiving the content.

(11-3) The in-vehicle device 17 interrupts the reception of the content, and transmits the cancellation information to the roadside device 16.

(11-4) Upon receiving the cancellation information, the roadside device 16 confirms the transmitted content and applies the signature of the roadside device 16 to the cancellation information. (11-5) The signed cancellation information is transmitted to the service providing apparatus 12.

(12-2) In the service providing device 12, the roadside device
Verify 16 signatures. (12-3) If the signature is correct, the cancellation information is transmitted to the content providing apparatus 11.

(13-1) Upon receiving the cancellation information from the service providing device 12, the content providing device 11 verifies the signature of the roadside device 16. If the signature is correct, subtract the cancellation from the request information from the service providing device 12,
Generate billing information. Other basic processing is the same as in the first embodiment.

As described above, in the second embodiment of the present invention, when the reception of the content is canceled, the wide-area data distribution system applies the signature to the cancellation information by the roadside device and provides the service providing device with the signature. Since transmission is performed, the cancellation process can be performed safely.

(Third Embodiment) In a third embodiment of the present invention, the information for canceling the reception of the content includes:
This is a wide-area data delivery system in which a signature of an on-vehicle device and a signature of a roadside device are given and transmitted to a service providing device.

The basic configuration of the third embodiment of the present invention is the same as that of the second embodiment. The configurations of the IC card management device, the IC card, the roadside device, the content providing device, and the service providing device are the same as those in the second embodiment.

FIG. 14 is a functional block diagram showing the configuration of the vehicle-mounted device. In FIG. 14, the signature generation unit 27 is a unit that generates a signature of the vehicle-mounted device. In this example, the signature verification unit 56 of the service providing apparatus in FIG. 12 serves as a unit that verifies the signatures of the roadside device and the vehicle-mounted device. FIG. 15 is a diagram illustrating the operation of the wide area data distribution system according to the third embodiment.

The operation of the wide area data distribution system according to the third embodiment of the present invention configured as described above will now be described.
With reference to FIG. 15, a description will be given of a process from when a user requests content to when information is provided and a corresponding charge is received. The process from the insertion of the IC card into the vehicle-mounted device to the reception of the content by the vehicle-mounted device is the same as that of the second embodiment.

(11-2) The user inputs to the input unit 25 of the in-vehicle device 17 to cancel the reception of the content if necessary before or before receiving the content.

(11-3) The in-vehicle device 17 interrupts the reception of the content, generates cancellation information, attaches a signature by the signature generation unit 27, and transmits the signature to the roadside device 16.

(11-4) When the roadside device 16 receives the cancel information, the roadside device 16 checks the transmitted content and applies the signature of the roadside device 16 to the cancellation information. (11-5) The signed cancellation information is transmitted to the service providing apparatus 12.

(12-2) The service providing device 12 verifies the signature of the roadside device 16 and the signature of the vehicle-mounted device 17 attached to the received cancellation information. (12-3) If the signature is correct, the cancellation information is transmitted to the content providing apparatus 11.

(13-1) When the content providing apparatus 11 receives the cancel information from the service providing apparatus 12, the signature of the roadside unit 16 and the onboard unit 17 attached to the cancel information are added.
Verify the signature of. If the signature is correct, the cancellation information is subtracted from the request information to generate billing information. Other basic processing is the same as in the second embodiment.

As described above, in the third embodiment of the present invention, the wide area data distribution system performs the service providing device by applying the signature of the on-vehicle device and the signature of the roadside device to the information for canceling the reception of the content. Is sent to
Cancellation processing can be performed more safely.

(Fourth Embodiment) In a fourth embodiment of the present invention, an IC card information is transmitted from a vehicle-mounted device to a service providing device by a mobile phone, and if the IC card information is correct, the service is provided. This is a wide-area data delivery system that transmits key information for decrypting encrypted content from the device to the on-vehicle device, and the on-vehicle device decrypts the encrypted content received from the roadside device using the key information.

The basic configuration of the fourth embodiment of the present invention is the same as that of the first embodiment. In-vehicle device, roadside device, content providing device, service providing device, IC
The configurations of the card management device, the IC card, and the media station device are the same as in the first embodiment.

FIG. 16 is a conceptual diagram of a wide area data distribution system according to the fourth embodiment of the present invention. In FIG. 16, a wide area wireless system 19 is a wireless communication system such as a mobile phone, a PHS, or a wide area business wireless system. FIG. 17 shows the fourth
It is a lineblock diagram of an in-vehicle device of a wide area data distribution system in an embodiment. In FIG. 17, the wide area wireless communication unit 28
It is a communication means such as a mobile phone, a PHS, and a wide-area business radio.

FIG. 18 is a diagram showing a configuration of a wide area wireless system. In FIG. 18, a base station device 91 is means for performing communication with an in-vehicle terminal. The base station control device 92 is means for controlling a plurality of base stations and connecting to a switching network and a general-purpose communication network. The IWU (Internetworking unit) 93 is a means for connecting the base station control device and the Internet network. The IWU is a service providing device,
Since it is a device that relays data between the content providing device and the in-vehicle device, data transmission and reception between the service providing device and the in-vehicle device via the IWU is functionally performed between the service providing device and the in-vehicle device. It is the same as sending and receiving data directly between them. In the following description of the operation, when the in-vehicle device and the service providing device transmit and receive data via the IWU, the IWU
A description will be given while omitting the processing in.

FIG. 19 is a diagram for explaining the operation of the wide area data distribution system according to the fourth embodiment.

The operation of the wide area data distribution system according to the fourth embodiment of the present invention configured as described above will now be described.
With reference to FIG. 19, a description will be given of a process from when a user requests content data to when information is provided and a corresponding charge is received. The process from the insertion of the IC card into the vehicle-mounted device to the reception of the content by the vehicle-mounted device is the same as that of the first embodiment. However, the content is encrypted.

(12-4) The in-vehicle device 17 transmits the IC card information to the service providing device 12 by wide area wireless communication.

(12-5) The service providing apparatus 12 checks the IC card information received by the wide area wireless communication. If correct, key information for decrypting the encrypted content is transmitted to the vehicle-mounted device 17.

(12-6) The in-vehicle device 17 is the service providing device 12
Decrypts the encrypted content by using the key information received from. The data to be encrypted and decrypted may be a part of the content. Other basic processing is the same as in the first embodiment.

As described above, in the fourth embodiment of the present invention, the wide area data delivery system transmits the IC card information from the vehicle-mounted device to the service providing device by a mobile phone, and if the IC card information is correct. From the service providing device, the key information for decrypting the encrypted content is transmitted to the in-vehicle device, and the in-vehicle device is configured to decrypt the encrypted content received from the roadside device with the key information, so that the content is reliably used. Can be handed over to the person.

(Fifth Embodiment) In a fifth embodiment of the present invention, a desired content name and a designated roadside device are transmitted from an in-vehicle device to a service providing device using a mobile phone, and the service providing device is used. Is a wide area data distribution system that transmits content from the content providing device to the designated roadside device, and transmits the content from the designated roadside device to the vehicle-mounted device when the vehicle arrives at the communication area of the designated roadside device.

The basic configuration of the fifth embodiment of the present invention is the same as that of the fourth embodiment. In-vehicle device, roadside device, content providing device, service providing device, IC
The configurations of the card management device, the IC card, and the wide area wireless system are the same as those of the fourth embodiment.

FIG. 20 is a diagram for explaining the operation of the wide area data distribution system according to the fifth embodiment.

The operation of the wide area data distribution system according to the fifth embodiment of the present invention configured as described above will now be described.
With reference to 20, a description will be given of a process from when a user requests content data to when information is provided and a corresponding charge is received. The steps from the insertion of the IC card into the vehicle-mounted device to the input of the request information are the same as those of the fourth embodiment.

(3) The in-vehicle device 17 transmits the request information to the service providing device 12 using a wide area wireless system such as a mobile phone.
Send to

(6) The service providing device 12 downloads the menu information to the vehicle-mounted device 17 using the wide area wireless system.

(7) The user inputs desired content from the menu displayed on the display unit 23 of the on-vehicle device 17 into the input unit 25.
Select by. Also, a roadside device to download the content is specified.

(8) The in-vehicle device 17 transmits the selected content name and the identification information of the designated roadside device as request information to the service providing device 12 via the wide area wireless system.

(9) The service providing device 12 transmits to the content providing device 11 request information including identification information of the designated roadside device and the on-vehicle device.

(10) The content providing device 11 transmits the content of the received request information to the designated roadside device.

(11-1) The roadside device 16 stores the received content in the storage device until the vehicle equipped with the vehicle-mounted device 17 comes to the communication area. (11-2) Confirm that the vehicle equipped with the on-vehicle device 17 has arrived at the communication area of the roadside device 16, and transmit the content to the on-vehicle device 17. Other basic processing is the same as in the fourth embodiment.

As described above, in the fifth embodiment of the present invention, the wide-area data delivery system transmits the desired content name and the designated roadside device from the vehicle-mounted device to the service providing device using the mobile phone. At the instruction of the service providing device, the content providing device transmits the content to the designated roadside device,
When the vehicle arrives at the communication area of the designated roadside device, the content is transmitted from the specified roadside device to the onboard device,
The request information can be sent from any place to receive the content from the designated roadside device.

(Sixth Embodiment) According to a sixth embodiment of the present invention, a content name and route information are transmitted from a vehicle-mounted device to a service providing device via a mobile phone. Based on the route information and the roadside device layout map, the nearest specific roadside device is selected, the content is transmitted from the content providing device to the specific roadside device, and when the vehicle reaches the communication area of the specific roadside device, the content is transmitted to the specific roadside device. This is a wide-area data distribution system that transmits data from the device to the on-board device.

The basic configuration of the sixth embodiment of the present invention is the same as that of the fifth embodiment. The configurations of the roadside device, the content providing device, the service providing device, the IC card management device, the IC card, and the wide area wireless system are the same as those in the fifth embodiment.

FIG. 21 is a functional block diagram of the vehicle-mounted device.
In FIG. 21, a car navigation device 29 is a device having a route search function. FIG. 22 is a diagram for explaining the operation of the wide area data distribution system according to the sixth embodiment.

The operation of the wide area data distribution system according to the sixth embodiment of the present invention configured as described above will be described with reference to FIG. The processing until a corresponding charge is received will be described. The process from the user inserting the IC card into the vehicle-mounted device to selecting the content is the same as in the fifth embodiment.

(8) The in-vehicle device 17 transmits the selected content name and the route information obtained from the car navigation device 29 to
The request information is transmitted to the service providing apparatus 12 via a wide area wireless system such as a mobile phone.

(9-1) The service providing apparatus 12 selects an appropriate roadside device to download contents based on the received route information and the roadside device layout map. If no suitable roadside machine is on the route, the roadside machine closest to the route is selected. (9-2) The identification information and the content name of the selected roadside device are transmitted to the content providing device 11. Also, the identification information of the selected roadside device is transmitted to the on-vehicle device 17. If the roadside device is on the route, the user will drop in. If not, the user will change the route and drop in there.

(10) The content providing device 11 transmits the content of the received request information to the designated roadside device 16.

(11-1) The roadside device 16 transmits the received content until the vehicle equipped with the vehicle-mounted device 17 comes to the communication area.
It is stored in a storage device. (11-2) Confirm that the vehicle equipped with the vehicle-mounted device 17 has arrived at the communication area of the roadside device 16 and transmit the content to the vehicle-mounted device 17. Other basic processing is the same as in the fifth embodiment.

As described above, in the sixth embodiment of the present invention, the wide area data delivery system transmits the content name and the route information from the vehicle-mounted device to the service providing device via the mobile phone to provide the service. The device selects the nearest specific roadside device based on the route information and the roadside device arrangement map, transmits the content from the content providing device to the specific roadside device, and, when the vehicle arrives at the communication area of the specific roadside device, Is transmitted from the specific roadside device to the on-board device, so by simply sending the content name and route information from any location, the nearest receiving position is automatically determined, even if you do not know the position of the roadside device Content can be received from the optimal roadside device.

[0093]

As is apparent from the above description, according to the present invention, a wide-area data distribution system including an in-vehicle device, a roadside device, a service providing device, and an information providing device is provided in an in-vehicle device.
A short-range communication transmitting unit that transmits request information including the request data name to the roadside device; and a short-range communication receiving unit that receives information including the request data from the roadside device. The roadside device communicates with the vehicle-mounted device. A short-range communication means; a wide-area communication means for communicating with the service providing apparatus and the information providing apparatus; and a means for relaying information from the information providing apparatus to the on-board unit. Means for receiving;
Means for transmitting, to the information providing apparatus, instruction information for requesting information transmission to the roadside device based on the request information, wherein the information transmitting apparatus transmits information to the roadside apparatus based on the instruction information from the service providing apparatus. Because it was configured to have means
The effect that the information provision service can be safely provided at a high speed and at low cost to the in-vehicle information device is obtained.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a wide area data distribution system according to a first embodiment of the present invention;

FIG. 2 is a functional block diagram of a vehicle-mounted device of the wide area data distribution system according to the first embodiment of the present invention;

FIG. 3 is a functional block diagram of a roadside device of the wide area data distribution system according to the first embodiment of the present invention;

FIG. 4 is a functional block diagram of a content providing device of the wide area data distribution system according to the first embodiment of the present invention;

FIG. 5 is a functional block diagram of a service providing device of the wide area data distribution system according to the first embodiment of the present invention;

FIG. 6 is a functional block diagram of an IC card management device of the wide area data distribution system according to the first embodiment of the present invention;

FIG. 7 is a functional block diagram of an IC card of the wide area data distribution system according to the first embodiment of the present invention;

FIG. 8 is a functional block diagram of a media station device of the wide area data distribution system according to the first embodiment of the present invention;

FIG. 9 is a diagram for explaining the operation of the wide area data distribution system according to the first embodiment of the present invention;

FIG. 10 is a functional block diagram of a roadside device of the wide area data distribution system according to the second embodiment of the present invention;

FIG. 11 is a functional block diagram of a content providing device of a wide area data distribution system according to a second embodiment of the present invention;

FIG. 12 is a functional block diagram of a service providing apparatus of a wide area data distribution system according to a second embodiment of the present invention;

FIG. 13 is a diagram for explaining the operation of the wide area data distribution system according to the second embodiment of the present invention;

FIG. 14 is a functional block diagram of an in-vehicle device of the wide area data distribution system according to the third embodiment of the present invention;

FIG. 15 is a diagram for explaining the operation of the wide area data distribution system according to the third embodiment of the present invention;

FIG. 16 is a conceptual diagram of a wide area data distribution system according to a fourth embodiment of the present invention;

FIG. 17 is a functional block diagram of a vehicle-mounted device of a wide area data distribution system according to a fourth embodiment of the present invention;

FIG. 18 is a configuration diagram of a wide area communication network of a wide area data distribution system according to a fourth embodiment of the present invention;

FIG. 19 is a diagram for explaining the operation of the wide area data distribution system according to the fourth embodiment of the present invention;

FIG. 20 is a view for explaining the operation of the wide area data distribution system according to the fifth embodiment of the present invention;

FIG. 21 is a functional block diagram of a vehicle-mounted device of a wide area data distribution system according to a sixth embodiment of the present invention;

FIG. 22 is a diagram illustrating an operation of the wide area data distribution system according to the sixth embodiment of the present invention.

[Explanation of symbols]

 11 Content providing device 12 Service providing device 13 IC card management device 14 Media station 15 Media station device 16 Roadside device 17 In-vehicle device 18 IC card 19 Wide area wireless system 21 IC card interface 22,31 Narrow wireless communication 23,32, 41,51,61,81 Display unit 24 Sound output unit 25,35,44,54,64,84 Input unit 26,36,45,55,65,73,85 Control unit 27,37 Signature generation unit 28 Wide area wireless Communication unit 29 Car navigation device 33,42,52,62,71,82 Communication unit 34,43,53,63,72,83 Storage unit 46,56 Signature verification unit 91 Base station device 92 Base station control device

Continued on the front page F term (reference) 5H180 BB12 CC12 EE10 FF13 FF25 FF32 5K033 AA02 AA04 BA06 DA06 DA19 DB18 5K067 BB03 BB21 BB36 DD17 EE02 EE10 EE16 FF02 GG01 GG11 GG21 HH22 HH24 HH36

Claims (6)

[Claims] 1. A wide area data distribution system including an on-vehicle device, a roadside device, a service providing device, and an information providing device, wherein the onboard device transmits request information including a request data name to the roadside device. Transmitting means, and a short-range communication receiving means for receiving information including request data from the road-side device, wherein the road-side device communicates with the on-vehicle device, the short-range communication means, the service providing device, and the information A wide-area communication unit that communicates with a providing device, and a unit that relays information from the information providing device to the on-vehicle device, wherein the service providing device receives the request information from the roadside device; Means for transmitting, to the information providing apparatus, instruction information for requesting information transmission to the roadside device based on the request information, the information providing apparatus comprising: an instruction from the service providing apparatus; A wide-area data delivery system comprising means for transmitting information to the roadside device based on information. 2. The vehicle-mounted device further comprises means for transmitting, to the road-side device, suspension request information for requesting suspension of information transmission from the road-side device to the vehicle-mounted device. Means for attaching the roadside device's signature and transmitting to the service providing apparatus, the service providing apparatus verifying the signature, and transmitting an instruction to the information providing apparatus to interrupt information transmission; 2. The wide area data distribution system according to claim 1, further comprising: 3. The wide area data distribution system according to claim 2, wherein said on-board unit is provided with means for adding a signature of said on-board unit to said interruption request information. 4. A wide area communication network which can secure a direct communication line between the on-vehicle device and the service providing device, wherein the service providing device has communication means for communicating with the on-vehicle device via the wide area communication network; Means for transmitting key information to the in-vehicle device through the wide area communication network, wherein the in-vehicle device receives communication with the service providing device through the wide area communication network, and receives key information through the wide area communication network. 2. The wide area data distribution system according to claim 1, further comprising means for decrypting the encrypted data by means of the data transmission means. 5. A wide-area communication network capable of directly securing a communication line between the on-vehicle device and the service providing device, wherein the on-vehicle device communicates with the service providing device via the wide-area communication network; Means for transmitting a request data name and a designated roadside device name to the service providing device via the wide area communication network, wherein the service providing device has a communication means for communicating with the on-vehicle device via the wide area communication network; 2. The wide area data distribution system according to claim 1, further comprising means for instructing the apparatus to transmit the request data to the designated roadside device. 6. A wide-area communication network capable of securing a direct communication line between the on-vehicle device and the service providing device, wherein the on-vehicle device is provided with a car navigation system for obtaining a scheduled route, and Communication means for communicating with the service providing apparatus; and means for transmitting the requested data name and the expected route through the wide area communication network to the service providing apparatus. Communication means for communicating with the on-board device; means for selecting a specific roadside device for transferring information to the on-vehicle device based on the scheduled passage route; and instructing the information providing device to transmit the request data to the specific roadside device. 2. The wide area data distribution system according to claim 1, further comprising means.