JP2010054275A - Delivery system, center device, and onboard unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a convenience from lowering due to expired content information, by inhibiting indication of the expired content information. <P>SOLUTION: A delivery system is provided, in which a center device for transmitting the content information containing expiration date information through a road-side radio device, is connected with an onboard unit used for receiving the content information through the road-side radio device so as to enable data to be transmitted and received. The center device includes: a memory section 34 for storing a plurality of content information sets and alternative content information sets with which the content information sets can be alternated; and a control section 31 for transmitting the content information or substituted content information to the onboard unit. The onboard unit includes: a memory section 1f for storing the plurality of content information sets and the alternative content information sets received by a DSRC section 3; and a control section 4 for displaying the content information or the alternative content information on a display section 1e, in accordance with the expiration data information of the content information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a distribution system, a center device, and an in-vehicle device.

  In-vehicle devices capable of performing narrow-area wireless communication with a roadside wireless device installed on the road using DSRC (Dedicated Short Range Communication) or the like and receiving information from a center device via the roadside wireless device. There is.

  As a system using such a vehicle-mounted device, bidirectional communication between the vehicle-mounted device mounted on the vehicle and the roadside wireless device is possible only while the vehicle is within the communication range of the roadside wireless device. Some distribute content information (for example, information on nearby stores and medical institutions, advertisements, etc.) via a roadside wireless device.

For example, an on-vehicle device that can reproduce the distribution information even in an environment where communication with the roadside apparatus cannot be performed by storing the distributed distribution information is disclosed (see Patent Document 1).
JP 2007-109032 A

The content information received by the vehicle-mounted device has been studied with a valid expiration date.
Regarding the expiration date, it is considered that a start date and an end date and time indicating the validity period of the content information are set in advance by a provider who provides the content information.

The vehicle-mounted device provides content information within the expiration date. However, since the handling of the content information after the expiration date is arbitrary, it is possible to hold and present the content information after the expiration date.
Therefore, there is a problem that such a vehicle-mounted device cannot suppress presentation of the content information for a business operator who does not want to present content information whose expiration date has passed. In addition, when the content information that has passed the expiration date is continuously presented, the user may be confused that the presented content information is within the expiration date, and the expiration date of the content information that is always presented You must be conscious of

  In view of the above problems, an object of the present invention is to suppress presentation of content information that has passed the expiration date, and to prevent a decrease in convenience due to content information that has passed the expiration date.

  According to the first aspect of the present invention, a center device that transmits content information including expiration date information via a roadside wireless device and an in-vehicle device that receives the content information can transmit and receive data via the roadside wireless device. In the distribution system connected to the center device, the center device substitutes for the first communication means for transmitting the content information to the vehicle-mounted device via the roadside wireless device, a plurality of the content information, and the content information. First storage means for storing alternative content information; and first control means for transmitting the content information or the alternative content information to the vehicle-mounted device by the first communication means, A second communication means for receiving the content information from the center device via a roadside wireless device; and the second communication means for receiving the content information. Second storage means for storing a plurality of the content information and the alternative content information; second control means for causing the display means to display the content information or the alternative content information according to expiration date information of the content information; It is a distribution system provided with.

  According to a second aspect of the present invention, in the center device that transmits content information including expiration date information to the vehicle-mounted device via the roadside wireless device, the content information is transmitted to the vehicle-mounted device via the roadside wireless device. A first storage unit that stores one communication unit, a plurality of pieces of the content information, and alternative content information that is substituted when the expiration date information of the content information is a date and time earlier than the current date and time information; And a first control unit that transmits the content information or the alternative content information to the vehicle-mounted device by the first communication unit.

  According to a third aspect of the present invention, in the center device according to the second aspect, the content information includes identification information for identifying the content information, and the first control means is stored in the vehicle-mounted device. The distribution request information including the identification information of the content information is received by the first communication unit, and the expiration date information of the content information stored in the first storage unit corresponding to the identification information included in the received distribution request information Is compared with the current date and time information, and if there is content information of expiration date information on the date and time before the current date and time information, the alternative content information in which the same identification information as the content information is set as the first communication By means of transmission to the vehicle-mounted device.

  According to a fourth aspect of the present invention, in the center device according to the second aspect, the first control means causes the first communication means to transmit the substitute content information to the vehicle-mounted device before the content information is transmitted. .

  According to a fifth aspect of the present invention, in the vehicle-mounted device that receives content information including expiration date information from the center device via the roadside wireless device, the content information is received from the center device via the roadside wireless device. Two communication means, a second storage means for storing a plurality of pieces of content information received by the second communication means, and alternative content information that replaces the content information, and the expiration information of the content information according to the expiration date information. And a second control unit that displays the content information or the alternative content information on a display unit.

  The invention described in claim 6 is the vehicle-mounted device according to claim 5, wherein the content information includes identification information for identifying the content information, and the second control means is stored in the second storage means. The distribution request information including the identification information of the content information is transmitted to the center device by the second communication unit, and the same as the received alternative content information among the content information stored in the second storage unit The alternative content information is overwritten and stored in the content information of the identification information.

  According to a seventh aspect of the present invention, in the vehicle-mounted device according to the fifth aspect, when the second control unit displays the content information on the display unit, the expiration date information of the content information is current date / time information. If the date and time is earlier than the date, the display unit displays the alternative content information.

  According to the present invention, it is possible to suppress the presentation of content information that has passed the expiration date, and to prevent a decrease in convenience due to the content information that has passed the expiration date.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
First, the configuration will be described.
FIG. 1 shows a configuration diagram of a distribution system 100 according to the first embodiment.
As shown in FIG. 1, the distribution system 100 includes an on-vehicle device 10 mounted on a vehicle C, a roadside wireless device 20, and a center device 30, and the center device 30 is connected to the onboard device 10 via the roadside wireless device 20. Distribute content information to
The roadside wireless device 20 is installed on a road or in a parking lot, and each roadside wireless device 20 is connected to the center device 30 via the network N. The roadside apparatus 20 and the vehicle-mounted device 10 of the vehicle C can perform DSRC communication.

  Note that content information refers to store advertisements, parking lots, medical facility guidance, and other content (text information, image information, sound information), information about businesses that provide content, content expiration information ( For example, the start date and time and end date and time of the expiration date), information on the target location where the service can be provided (for example, the latitude and longitude indicating the location of the advertised store, the store name, etc.), and a popup for notifying the specified content Point of playback (for example, latitude / longitude indicating the playback point of pop-up, information specifying road type and pop-up direction of pop-up, etc.), transition information of content display screen (specify next screen to be displayed) Information, etc.) and preference information. Details will be described later.

  Although only one center apparatus 30 is shown in FIG. 1, there are a plurality of distribution companies that distribute content information, and the center apparatus 30 may be provided for each distribution company.

Hereinafter, each component apparatus will be described in detail.
FIG. 2 is a diagram for explaining a roadside wireless device and a roadside area.
As shown in FIG. 2, the roadside apparatus 20 includes a main unit 20a and an antenna 20b. The roadside apparatus 20 forms a roadside area Z in the vicinity of the roadside apparatus 20 by radiating DSRC radio waves with a limited reach from an antenna 20b installed on the side of the road, above the road, or on the side of the parking lot. . Bidirectional narrowband wireless communication is possible only with the vehicle-mounted device 10 of the vehicle C in the roadside area Z. Hereinafter, the narrow area wireless communication between the roadside apparatus 20 and the vehicle-mounted device 10 may be referred to as road-vehicle communication.

  DSRC is a communication method using radio waves in the 5.8 GHz band, and its communication range is, for example, several meters to several tens of meters. Since all of the DSRC transmission outputs from the roadside apparatus 20 are set to the same level, the roadside area Z formed by each of the plurality of roadside apparatuses 20 is substantially constant regardless of the installation location.

  The main body device 20 a performs processing for mediating exchange of information between the vehicle-mounted device 10 and the center device 30. That is, the information received from the vehicle-mounted device 10 via the antenna 20 b is transferred to the center device 30, and the content information transmitted from the center device 30 is transferred to the vehicle-mounted device 10. A computer terminal including a control unit that performs information processing and communication control, a storage unit, and the like can be applied to the main body device 20a. In addition, although the main body apparatus 20a was demonstrated as a different body from the center apparatus 30 here, you may make it the main body apparatus 20a combine the one part or all function of the center apparatus 30. FIG.

  The vehicle-mounted device 10 is mounted on the vehicle C and has a function for performing processing for using ETC (Electronic Toll Collection System) by DSRC in addition to a navigation function for performing processing for guiding the mounted vehicle C to the destination. Etc.

FIG. 3 shows the configuration of the vehicle-mounted device 10 in the first embodiment.
As shown in FIG. 3, the vehicle-mounted device 10 includes a car navigation unit 1, a VICS (Vehicle Information and Communication System) module 2, a DSRC unit 3, a control unit 4, a wireless communication unit 5, and the like. Note that the wireless communication unit 5 is preferably provided as necessary.

  The car navigation unit 1 includes a car navigation control unit 1a, a current location detection unit 1b, a map storage unit 1c, an input unit 1d, a display unit 1e, a storage unit 1f, a voice output unit 1g, and the like, and a route from the current location of the vehicle C to the destination Is calculated, and processing for guiding the vehicle C to the destination is performed according to the route.

  The car navigation control unit 1a determines the destination set from the current location of the vehicle C via the input unit 1d based on the location information of the current location detected by the current location detection unit 1b and the map information stored in the map storage unit 1c. The route to is calculated. And the map screen for guide | inducing to the path | route calculated using the map information memorize | stored in the map memory | storage part 1c is produced | generated, and it displays on the display part 1e.

  The current location detection unit 1b includes various sensors such as a GPS antenna, an angle sensor, an azimuth sensor, and a distance sensor, and detects the current location of the vehicle C based on the detection results of these sensors. The GPS antenna detects a GPS signal transmitted from a GPS satellite. Further, the angle sensor detects the acceleration of the vehicle C indicating the amount of change in the moving direction, and the direction sensor detects the geomagnetism to detect the absolute direction of the vehicle C. The current location detection unit 1b generates position information (information such as longitude and latitude) indicating the current location of the vehicle C based on each detection result acquired from these sensors, and outputs the position information to the car navigation control unit 1a.

  The map storage unit 1c is composed of a recording medium such as a memory or a DVD, and stores map information necessary for guidance display, guide information (road information, traffic jam information, etc.) received via the VICS module 2 and the like. . The map information includes a map screen for display, information for route search, information on points such as facilities and parks, and the like. The point information includes, for example, a point name, latitude / longitude, address, telephone number, and the like.

  The input unit 1d includes a touch panel configured integrally with the operation keys and the monitor of the display unit 1e. The input unit 1d generates operation signals corresponding to these operations and outputs them to the car navigation control unit 1a.

  The display unit 1e includes a monitor, and displays various types of information on the monitor according to display control of the control unit 4 and the car navigation control unit 1a. For example, various screens such as a setting screen, a map screen, and a content information screen received from the center apparatus 30 are displayed and function as display means.

The storage unit 1f includes a memory, and stores a control program executed by the control unit 4 and the car navigation control unit 1a, parameters and data necessary for executing the program, and the like.
The storage unit 1f stores a plurality of content information and alternative content information received from the center device 30, and functions as a second storage unit.
The alternative content information of the first embodiment is content information that is distributed from the center device and overwrites the content information when the expiration date information of the content information is a date and time before the current date and time information.

  The audio output unit 1g includes an audio processing unit, a D / A converter, an amplifier, a speaker, and the like. The audio output unit 1g converts audio data instructed from the control unit 4 or the car navigation control unit 1a into an analog signal by a D / A converter and outputs the audio through a speaker. The voice output unit 1g generates a synthesized voice signal by the voice processing unit based on the phonogram character string data instructed from the control unit 4 or the car navigation control unit 1a, and outputs the voice through the speaker.

  The VICS module 2 includes antennas for optical communication, FM communication, and 2.4 GHz radio wave communication, and performs optical communication, FM communication, and radio wave communication with the VICS center. The VICS module 2 receives traffic jam information, road traffic information, and the like from the VICS center and outputs them to the control unit 4.

  The DSRC unit 3 includes a DSRC control unit 3a, a DSRC communication unit 3b, a storage unit 3c, an ETC processing unit 3d, and an IC card I / F unit 3e. It performs communication processing for receiving various information such as content information and alternative content information from the device 30, and functions as a second communication means.

The DSRC control unit 3a includes a CPU, a RAM, and the like, and controls the operation of each unit of the DSRC unit 3 in cooperation with a control program stored in the storage unit 3c.
For example, when performing payment by ETC, the communication operation of the DSRC communication unit 3b is controlled to transmit / receive payment information to / from the ETC base station (a radio base station provided near the ETC gate for performing ETC payment). . In addition, the ETC processing unit 3d causes payment information to be written.

  When the DSRC control unit 3a makes a reception request for content information or the like from the center device 30, the DSRC control unit 3a transmits various information stored in the uplink information storage area 3c1 of the storage unit 3c according to the instruction of the control unit 4 to the DSRC communication. While the unit 3b transmits to the center device 30 via the roadside apparatus 20, the DSRC communication unit 3b outputs content information and the like to the control unit 4 when received via the roadside apparatus 20.

  The DSRC communication unit 3b includes an antenna fixed in the vicinity of the windshield on the dashboard of the vehicle C, and transmits and receives DSRC radio waves with the roadside apparatus 20 and the ETC base station via the antenna.

  The storage unit 3c stores a control program executed by the DSRC control unit 3a. In addition, an uplink information storage area 3c1 is provided in the storage unit 3c. The uplink information storage area 3c1 is a storage area provided exclusively for providing information to the center device 30, and stores the characteristic information of the vehicle-mounted device 10 in addition to the uplink information.

  The characteristic information refers to information related to device characteristics of the vehicle-mounted device 10. In the characteristic information, an ID (hereinafter referred to as “vehicle equipment ID”) allocated to each vehicle-mounted device 10, a language that the vehicle-mounted device 10 can support, a map geodetic system, a copyright management technology, a monitor resolution of the display unit 1 e, Information such as the compatibility of SVG (Scalable Vector Graphics) and the storage capacity capable of storing content information is included.

  The uplink information is information used for selecting content information to be distributed in the center device 30 and is distribution request information including an information code to be described later of the content information stored in the storage unit 1f. The uplink information is generated for each service provider by the control unit 4 with the content corresponding to the service provider, and the control unit 4 is constantly updated so as to be the latest content.

FIG. 4 shows an example of uplink information.
As shown in FIG. 4, the uplink information includes a service provider code (a code indicating a service provider with whom the user has contracted for distribution of content information), a destination of the vehicle C, a stopover number identification flag, a stopover point, Preference genre table data, preference information version, member information, past stop by which the vehicle C stopped in the past, and a reception number identification flag indicating the number of content information received and stored by the vehicle-mounted device 10 mounted on the vehicle C , Information such as reception / reproduction history of each content information received and stored is included.

The reception / reproduction history information includes a reception information code and a reproduction identification flag.
The reception information code is an identification code given to the content information received by the vehicle-mounted device 10. The reproduction identification flag is information indicating whether or not the received content information is reproduced by being displayed on the display unit 1e. The reception / playback history information may include latitude / longitude information, time information, and the like at the time of playback.

  The ETC processing unit 3d reads and writes settlement information and the like with respect to a credit card with IC or a debit card inserted into and removed from the IC card I / F unit 3e.

  The IC card I / F unit 3e includes a slot for the credit card or the like, and mediates the exchange of information between the IC such as a credit card inserted into the slot and the ETC processing unit 3d.

  The control unit 4 includes a CPU (Central Processing Unit), a RAM (Random Access Memory), and the like. The control unit 4 performs various calculations in cooperation with a control program stored in the storage unit 1f and performs centralized control of each unit. For example, the DSRC communication operation of the DSRC unit 3 and the communication operation of the wireless communication unit 5 are controlled. The DSRC unit 3 is controlled in cooperation with the DSRC control unit 3a of the DSRC unit 3. In addition, the content information received from the center device 30 and the traffic information received via the VICS module 2 are stored and reproduced.

  Moreover, the control part 4 can measure time using the clock of CPU, and has a function as an internal timer which produces | generates the present date information.

  Further, the control unit 4 causes the DSRC unit 3 to transmit the uplink information as the distribution request information including the reception information code that is the information code of the received content information stored in the storage unit 1 f to the center device 30. In addition, among the content information stored in the storage unit 1f, the content information having the same information code as the received content information is overwritten and stored. And based on the expiration date information of the content information selected according to the selection signal input from the input unit 1d, it functions as second control means for displaying the content information or alternative content information on the display unit 1e.

The wireless communication unit 5 wirelessly uses WiMAX (World Wide Interoperability for Microwave Access) in addition to PDC (Personal Digital Cellular) and CDMA (Code Division Multiple Access) using a wireless communication device 40 such as a mobile phone, PHS, and LAN card. A communication module capable of communication is provided and performs wireless communication with the center apparatus 30.
Note that not only such wireless communication means but also wired communication means (for example, PLC; Power Line Communication) may be provided to exchange data.

Next, the center device 30 will be described.
The center device 30 stores a plurality of content information and alternative content information, and distributes them to the vehicle-mounted device 10.

FIG. 5 shows a functional configuration of the center device 30.
As shown in FIG. 5, the center device 30 includes a control unit 31, an input unit 32, a display unit 33, a storage unit 34, and a communication unit 35.

  The control unit 31 includes a CPU, a RAM, and the like, performs various calculations in cooperation with a control program stored in the storage unit 34, and centrally controls each unit. For example, the control unit 31 organizes content information distributed to the vehicle-mounted device 10. In addition to creating the content information from the beginning, the organization stores the information of the parts necessary to compose the content information in advance, and assembles the content information using the information of the parts, or creates and stores it in advance. This includes changing the content information that has been stored, deleting some of the content information, and adding other information.

  In addition, the control unit 31 can measure time using the clock of the CPU, and has a function as an internal timer that generates current date and time information.

  Furthermore, the control unit 31 of the first embodiment functions as a first control unit that causes the communication unit 35 to transmit content information or alternative content information to the vehicle-mounted device 10 according to the received uplink information. The control unit 31 compares the expiration date information of the content information stored in the storage unit 34 corresponding to the received information code included in the received uplink information with the current date and time information, and compares it with the current date and time information. When there is content information of expiration date information of the previous date and time, the alternative content information in which the same information code as the content information is set is transmitted to the vehicle-mounted device by the communication unit 35.

  The input unit 32 includes a keyboard or the like, receives an operation input, and outputs an operation signal corresponding to the operation input to the control unit 31.

  The display unit 33 includes a display, and displays various screens on the display according to display control of the control unit 31.

  The storage unit 34 stores various data necessary for executing the program in addition to the program executed by the control unit 31. In order to register as a member when the user subscribes to the content information distribution service, the storage unit 34 stores specific information such as the name and address of the registered user as a member database. Information such as the vehicle-mounted device ID of the vehicle-mounted device 10 owned is stored in a database for each user.

Further, the storage unit 34 replaces the content information and the parts used to create the content information or the alternative content information when the expiration date information of the content information is the date and time before the current date and time information. It functions as a first storage means for storing a database of information.
The center apparatus 30 acquires content information from the database stored in the storage unit 34, edits information such as deletion, addition, and change if necessary, and organizes content information to be distributed or alternative content information. Do. When there are a plurality of content information or alternative content information to be distributed, they are transmitted to the vehicle-mounted device 10 as a group of distribution groups.

  Content information is not only content (text information, image information, sound information) such as store advertisements, parking lots, and medical facility guidance, but also other information to be distributed such as information on service providers that provide content A group of information including

FIG. 6 shows an example of the content information format.
As shown in FIG. 6, the content information includes information with individual IDs, such as configuration ID information, service provider information, information provider company information, reproduction conditions, expiration date, provision time, target point information, information Provision points, transition information, parking space full information, driving support information, preference data, and the like are included.

  The configuration ID information with ID = 00 indicates (describes) a list of IDs of information included in the content information. By referring to the configuration ID of ID = 00, it is possible to determine which information is included in the content information.

  The service provider information of ID = 01 is information for specifying the service provider, and is, for example, a provider code.

  The information providing company information with ID = 02 is detailed information regarding the content information. For example, the company code indicating the content providing source assigned by the service provider, and the service provider uniquely assigned to each content information. Information code, preference data category indicating information category, and the like.

  The reproduction condition of ID = 03 is information regarding the reproduction condition of the content information, and includes, for example, an immediate / accumulated code. The immediate / accumulation code is an identifier indicating whether the content is to be reproduced immediately after completion of reception or whether the received content information is accumulated as content that can be used outside the roadside area Z.

  The expiration date of ID = 04 is information indicating the expiration date of the content. For example, the start date / time indicating the start date / time of the content expiration date and the end date / time indicating the end date / time are indicated in seconds. Yes.

  The provision time of ID = 05 is business hours of a store or the like indicated by the content.

  The control point information of ID = 10 is information about a target point such as a store or a facility that can provide a service. The target point information includes, for example, target point coordinates (latitude and longitude), target point display text indicating the target point name, etc., display character data that is information to be provided such as description and advertisement of the target point, information, It consists of display image data, phonetic character string data, URL for providing information on a target point by wireless communication, partner parking information, and the like. The affiliated parking lot information is information relating to a parking lot designated for affiliation at the target point, for example, parking lot ID information indicating a parking lot designated for affiliation.

The information of the information provision point with ID = 20 includes content to be reproduced at the information provision point.
The information provision point is a point at which specific content information is reproduced when the vehicle C enters from a specific direction at a specific place, and is defined by a circular provision range centered on a specified position. Information of the information provision point of ID = 20 is reproduced with the information provision center coordinates (latitude and longitude) designated as the information provision point, the information provision area, the information provision direction code indicating the approach direction of the vehicle C, and the information provision point. It consists of display image data, phonetic character string data, and the like.

  The transition information of ID = 30 is information used when a plurality of content information images (images of target point information of ID = 10) are transitioned and displayed. The transition information includes a next reproduction information code. The next reproduction information code is an information code indicating the content information of the next transition destination image.

  The parking lot information with ID = 50 is information relating to a parking lot registered in advance in the center device 30. The parking lot information includes, for example, entrance information, business hours, initial charges, etc., in addition to the parking lot ID and fullness information registered in advance in the center device 30.

  The driving support information of ID = 60 is information that assists driving with respect to driving in the site, such as the vicinity of the entrance / exit of the parking lot, the junction branch in the parking lot, and speed guidance. The driving support information includes, for example, driving support image data for driving support, and driving support phonetic characters used for voice guidance to inform the user by speaking the contents of the information when the content information is received. Column data and the like.

  The preference data with ID = 80 is information used for selecting content information to be distributed as described above. The preference data includes, for example, a version of the preference data, a display text indicating the name of the preference data defined by the version, a phonetic character string, detailed information, and the like.

  In addition, new information contents may be defined by giving IDs of different numbers. The information of each ID described above is not necessarily included in the content information, but is included in the content information as necessary. For example, some content information has information characterized by ID = 00-05, and another content information has information characterized by ID = 00-05, ID = 50, ID = 60. ID = 00 to 05 is basic information, and all content information has information of these IDs.

Also, the alternative content information should be distributed in other ways, such as content that is replaced when the expiration date information of the content information is date and time before the current date and time information, information of the service provider that provides the content It is a group of information including information and includes at least ID = 00 to 05 and ID = 10.
The alternative content information has the same data configuration except that the contents of the content information except the service provider code, company code, and information code are different (for example, only the display image data with ID = 10 is different). Therefore, illustration and description of the format of the alternative content information are omitted.

  The communication unit 35 includes a communication interface for performing DSRC communication or other wireless communication with the roadside apparatus 20, performs communication processing according to communication control of the control unit 31, and functions as a first communication unit.

Next, the operation will be described.
With reference to FIG. 7, the flow of processing of the center device 30, the roadside apparatus 20, and the vehicle-mounted device 10 when content information is distributed will be described.

  As shown in FIG. 7, when the engine of the vehicle C is started and the vehicle-mounted device 10 is turned on (step S1), the control unit 4 generates characteristic information of the vehicle-mounted device 10 and updates the storage unit 3c. Write to the link information storage area 3c1 (step S2). The control unit 4 obtains characteristic information by inquiring each unit such as the display unit 1e, or by reading information stored in the storage unit 1f in advance, and writes it in a corresponding region of the uplink information storage region 3c1. In practice, the control unit 4 outputs control information instructed to write to the DSRC control unit 3a, and the DSRC control unit 3a writes the information to the uplink information storage area 3c1.

  Thereafter, when the vehicle C starts traveling and enters the roadside area Z of the roadside apparatus 20 (area in), the roadside apparatus 20 detects the vehicle C, and the DSRC control unit 3a of the vehicle-mounted device 10 receives the uplink information. Connection processing by the storage area 3c1 and DSRC communication is started (steps S3a and S3b). That is, the roadside apparatus 20 transmits a DSRC radio wave and establishes a communication path when a response from the vehicle-mounted device 10 is obtained. When the roadside apparatus 20 establishes the communication path, the roadside apparatus 20 transmits notification information indicating that the connection is completed to the center apparatus 30 (step S4a). On the other hand, the DSRC unit 3 of the vehicle-mounted device 10 outputs notification information indicating that the connection is completed to the control unit 4 (step S4b).

Next, when the roadside apparatus 20 requests the DSRC unit 3 of the vehicle-mounted device 10 to transmit information in the uplink information storage area 3c1, the DSRC unit 3 has the characteristics written in the uplink information storage area 3c1. Information is transmitted to the roadside apparatus 20 (step S5). The characteristic information is transmitted to the center apparatus 30 via the roadside apparatus 20.
Next, the control unit 4 generates uplink information and writes it in the uplink information storage area 3c1 (step S6).

The center apparatus 30 periodically polls the vehicle-mounted device 10 (step S7), and requests the uplink information written in the uplink information storage area 3c1.
The DSRC unit 3 of the vehicle-mounted device 10 transmits the uplink information stored in the uplink information storage area 3c1 to the center device 30 via the roadside wireless device 20 in response to polling from the center device 30 (step S8). ).

The center device 30 reads out the content information corresponding to the received characteristic information and uplink information from the content information stored in the storage unit 34 and transmits the content information to the vehicle-mounted device 10, and an alternative content information transmission process described later Is executed (step S9).
The in-vehicle device 10 stores the received content information in the storage unit 1f, and executes a content information storage process for overwriting and storing the alternative content information (step S10).

  Thereafter, after all the content information to be distributed is distributed, the center device 30 causes the control unit 31 to generate message information for notifying the end of distribution and transmit the message information to the vehicle-mounted device 10 (step S11). This message information on the end of distribution is for prompting the user to area out, and the vehicle-mounted device 10 displays this message information. Thereafter, when communication with the roadside apparatus 20 is interrupted for a certain period of time, the control unit 4 of the vehicle-mounted device 10 determines that the distribution has ended and performs control to delete the uplink information (step S12). In response to this control, the DSRC control unit 3a deletes the uplink information in the uplink information storage area 3c1.

Next, the alternative content information transmission process executed in step S9 in the center apparatus 30 will be described. FIG. 8 shows a flowchart of the alternative content information transmission process.
8 is executed by the control unit 31 of the center apparatus 30 in cooperation with each unit.

  After receiving notification information indicating that the connection with the vehicle-mounted device 10 has been completed from the roadside apparatus 20 in step S4a (step S21), the control unit 31 performs polling in step S7 and requests transmission of uplink information. (Step S22).

  The control unit 31 determines whether or not uplink information has been received (step S23). If the uplink information has not been received (step S23; No), whether or not the connection with the vehicle-mounted device is continued. (Step S24), when the connection with the vehicle-mounted device is continued (step S24; Yes), the process returns to step S22, and when the connection with the vehicle-mounted device is not continued (step S24; No), this The process ends.

  When receiving the uplink information (step S23; Yes), the control unit 31 acquires the reception / playback history information included in the received uplink information (step S25), and from the acquired reception / playback history information. Receive information code is extracted. Then, the content information stored in the storage unit 34 is searched for content information whose information code matches the received information code (step S26).

  The control unit 31 determines whether there is content information whose information code matches the received information code among the content information stored in the storage unit 34 (step S27).

  When there is no content information whose information code matches the received information code (step S27; Yes), the control unit 31 determines whether there is other reception / playback history information in the uplink information (step S28). .

  When there is other reception / playback history information (step S28; Yes), the control unit 31 acquires the other reception / playback history information (step S29), and proceeds to step S26 to enter other reception / playback history. If there is no information (step S28; No), this process ends.

  When there is content information whose received information code and information code match among the content information stored in the storage unit 34 (step S27; Yes), the control unit 31 stores content information whose received information code and information code match. The expiration date information is acquired (step S30), and the current date and time information is acquired (step S31).

  The control unit 31 compares the acquired expiration date information with the current date and time information, and determines whether or not the content information is the expiration date of the last year, month, day, hour, minute and second before the current date and time information. It is determined whether or not the date and time of the content information for which the expiration date information has been acquired has passed the expiration date period (the period from the start year / month / day / hour / minute to the end year / month / day / hour / minute / second). (Step S32).

  If the content information for which the expiration date information has been acquired is not expired (step S32; No), the control unit 31 proceeds to step S28. If the expiration date has expired (step S32; Yes), the control unit 31 sets the information code of the alternative content information. The acquired reception information code is set, the substitute content information is transmitted to the vehicle-mounted device 10 (step S33), and the process proceeds to step S28.

Next, the content information storage process executed in step S10 in the vehicle-mounted device 10 will be described. FIG. 9 shows a flowchart of the content information storage process.
Note that the processing shown in FIG. 9 is executed by the control unit 4 of the vehicle-mounted device 10 in cooperation with each unit, and is executed every time content information is received.

  When receiving the content information from the center device 30, the control unit 4 extracts a service provider code, a company code, and an information code from the received content information (hereinafter, received content information) (step S41).

  And the control part 4 discriminate | determines whether there exists content information which has each code | cord | chord of the extracted service provider code | symbol, company code, and information code among the content information memorize | stored in the memory | storage part 1f (step). S42).

  When there is no content information having the extracted service provider code, company code, and information code (step S42; No), the control unit 4 adds a file name to the received content information and stores it in the storage unit 1f (step S43). ), This process is terminated.

  When there is content information having the extracted service provider code, company code, and information code (step S42; Yes), the control unit 4 acquires the file name of the content information (hereinafter, code matching content information) (step S42). S44), the received content information is stored in the storage unit 1f with a file name different from the code matching content information (step S45).

  After step S45, the control unit 4 deletes the code matching content information from the storage unit 1f (step S46), rewrites the file name of the received content information with the file name of the code matching content information deleted in step S46 (rename) (Step S47), and this process is terminated.

Next, content information display processing executed in the vehicle-mounted device 10 will be described.
The content information stored in the storage unit 1 f of the vehicle-mounted device 10 forms a tree structure of content screen transitions based on each content information based on the next reproduction information code of the transition information with ID = 30.

FIG. 10 shows an example of the tree structure of the screen transition, and FIG. 11 shows an example of setting various information related to the screen transition of the content information shown in FIG.
As shown in FIGS. 10 and 11, for example, in content information A, information codes of content information B and content information C are set as the next reproduction information code indicating the screen transition destination. In the content information C, the information code of the content information D is set as the next reproduction information code indicating the screen transition destination.

  FIG. 11A shows a case where the expiration date information of the content information D is not earlier than the current date information, that is, the current date information does not pass the expiration date of the content information D. FIG. 11B shows the case where the expiration date information of the content information D is before the current date information, that is, when the current date information has passed the end date of the expiration date of the content information D (expired expiration date). Example).

As shown in FIG. 11, when the current date and time information is the expiration date of the content information D, the alternative content X in which the same information code as the content D is set in the content D is overwritten and saved by the content information saving process. Therefore, the alternative content X is set as the screen transition destination of the content C.
Therefore, when the user gives an instruction to select the display of the content information D from the content information C screen, if the content information D is not expired, the content information D screen is displayed. In some cases, the alternative content information X screen is displayed.

FIG. 12 shows an example of an alternative screen based on the alternative content information X.
As shown in FIG. 12, on the alternative screen G1 based on the alternative content information X, a message area M1 indicating that the content information selected by the user has expired and a screen that is a transition source of the alternative screen G1 are displayed. A return button B1 is provided.

  Since the substitute screen based on the alternative content information is displayed instead of the screen based on the expired content information, the expired content information is not continuously presented (displayed), and the user always has an expiration date of the content information. No need to be aware of

[Second Embodiment]
Since the configuration of the distribution system, the description of the roadside wireless device and the roadside area, the example of the uplink information, the content information, and the alternative content information according to the second embodiment are the same as those of the first embodiment, the illustration and description thereof are Omitted and only the different operating parts are described.

  First, the vehicle-mounted device 10 will be described. Since the figure which shows the structure of the onboard equipment 10 is the same as 1st Embodiment, illustration is abbreviate | omitted and only a different part is demonstrated.

The storage unit 1f in the second embodiment stores a plurality of content information and alternative content information received from the center device 30, and functions as a second storage unit.
The alternative content information of the second embodiment is content information that is distributed from the center device before distribution of the content information and is stored with a file name different from the content information.

  The control unit 4 in the second embodiment stores the content information and the alternative content information received from the center device in the storage unit 1f, and the content information selected according to the operation instruction from the input unit 1d When the expiration date information of the content information is a date and time before the current date and time information (when the expiration date has expired), the screen based on the alternative content information is displayed on the display unit 1e. It functions as a second control means for displaying.

  Next, the center device 30 will be described. Since the figure which shows the functional structure of the center apparatus 30 is the same as 1st Embodiment, illustration is abbreviate | omitted and only a different part is demonstrated.

  The control unit 31 according to the second embodiment causes the communication unit 35 to transmit content information to the in-vehicle device 10 according to the received uplink information, and the alternative content information is transmitted by the communication unit 35 before the content information is transmitted. It functions as a first control means for transmitting to the vehicle-mounted device 10.

  The storage unit 34 substitutes content information when the content information and the expiration date information of the content information are before the current date and time information, or information on parts used for creating content information or alternative content information It functions as a first storage means for storing the database.

Next, the operation will be described.
Since the processing flow of the center device 30, the roadside radio device 20, and the vehicle-mounted device 10 when distributing content information is the same as that of the first embodiment, illustration is omitted and only different portions (steps S9 and S10) are described. To do.

  The center apparatus 30 reads out the content information or alternative content information corresponding to the received characteristic information and uplink information from the content information stored in the storage unit 34, and transmits the content information or the alternative content information to the vehicle-mounted device 10 (step S9).

  In the vehicle-mounted device 10, the control unit 4 stores the received content information or alternative content information in the storage unit 1f (step S10).

  Next, content information display processing executed in the vehicle-mounted device 10 in the second embodiment will be described. The content information stored in the storage unit 1 f of the vehicle-mounted device 10 forms a tree structure of content screen transitions based on each content information based on the next reproduction information code of the transition information with ID = 30.

FIG. 13 shows an example of the tree structure of the screen transition, and FIG. 14 shows an example of setting various information related to the screen transition of the content information shown in FIG.
As shown in FIGS. 13 and 14, for example, in content information E, information codes of content information F and content information G are set as the next reproduction information code indicating the screen transition destination. In the content information G, the information code of the content information H is set as the next reproduction information code indicating the screen transition destination.

  Further, the content information Z is valid if any of the expiration dates of the content information E to H is before the current date information, that is, the expiration date of the content information E to H. When the end date of the past date has passed (expired), it is alternative content information that is executed instead of the expired content information, and a preset information code (in this case, “ 0xFF ") is set.

  FIG. 15 shows a flowchart of the content information display process in the second embodiment. In addition, the process shown in FIG. 15 shall be performed by the control part 4 of the onboard equipment 10 cooperating with each part.

  In the content information on the screen displayed on the display unit 1e, the control unit 4 uses the input unit 1d to select the content information that is the screen transition source or the screen transition destination of the content information on the currently displayed screen. When the screen transition button that accepts the input is pressed, the next reproduction information code corresponding to the screen transition button is acquired from the content information of the screen being displayed (step S51).

  The control unit 4 searches the storage unit 1f for content information of an information code corresponding to the acquired next reproduction information code (step S52), and content information having an information code that matches the next reproduction information code (hereinafter, code matching content). It is determined whether or not there is (information) (step S53).

  When there is no code matching content information (step S53; No), the control unit 4 ends this processing. When there is code matching content information (step S53; Yes), the control unit 4 obtains information on the expiration date of the code matching content information. (Step S54) and the current date and time information is acquired (Step S55).

  The control unit 4 compares the acquired expiration date information with the current date / time information, and whether the code match content information is the expiration date of the last year / month / day / hour / minute / second before the current date / time information, that is, Then, it is determined whether or not the current date and time has passed the expiration date period (the period from the start year / month / day / hour / minute to the end year / month / day / hour / minute / second) of the code matching content information (expired) (step S56). ).

  If the code matching content information is not expired (step S56; No), the control unit 4 displays the screen of the content of the code matching content information on the display unit 1e (step S57), and ends this process.

  When the code matching content information has expired (step S56; Yes), the control unit 4 searches the storage unit 1f for content information (alternative content information) in which an information code indicating the alternative content information is set (step S58). ), It is determined whether there is alternative content information (step S59).

  When there is no alternative content information (step S59; No), the control unit 4 proceeds to step S57. When there is alternative content information (step S59; Yes), the content screen of the alternative content information (for example, as shown in FIG. 12). (Alternative screen) is displayed on the display unit 1e (step S60), and this process is terminated.

  FIG. 16 shows another example of a flowchart of content information display processing in the second embodiment. Note that the processing shown in FIG. 16 is the same except that the control unit 4 of the vehicle-mounted device 10 is executed in cooperation with each unit, and the operation instruction for changing the screen based on the content information by the input unit 1d is different. Only different parts will be described.

  The control unit 4 causes the display unit 1e to display a favorite list screen as a list of a plurality of pieces of content information registered in advance in the storage unit 1f, and among the plurality of pieces of content information displayed on the favorite list screen. When an input of a selection instruction for selecting any one piece of content information is received, an information code (favorite information code) of the selected content information is acquired (step S71).

  The control unit 4 searches the storage unit 1f for content information of an information code corresponding to the acquired favorite information code (step S72), and content information having an information code that matches the favorite information code (hereinafter, code matching content information). It is determined whether or not there is (step S73).

  Hereinafter, steps S74 to S80 are the same as steps S54 to S60, and thus the description thereof is omitted.

  As described above, according to the first embodiment and the second embodiment, it is possible to suppress the presentation of content information that has passed the expiration date, and to prevent a decrease in convenience due to the content information that has passed the expiration date.

  Of course, the present invention is not limited to the above-described embodiment, but can be modified as appropriate.

It is a block diagram of a delivery system. It is a figure for explaining a roadside radio apparatus and a roadside area. It is a figure which shows the structure of onboard equipment. It is a figure which shows the example of uplink information. It is a figure which shows the functional structure of a center apparatus. It is a figure which shows an example of a format of content information. It is a figure explaining the flow of a process of the center apparatus at the time of delivering content information, a roadside radio | wireless apparatus, and onboard equipment. It is a flowchart of an alternative content information transmission process. It is a flowchart of a content information storage process. It is an example of the tree structure of a screen transition. It is a figure which shows the example of a setting of the various information which concerns on the screen transition of the content information shown in FIG. It is a figure which shows the example of an alternative screen based on alternative content information. It is a figure which shows the example of the tree structure of a screen transition. It is a figure which shows the example of a setting of the various information which concerns on the screen transition of the content information shown in FIG. It is a flowchart of a content information display process. It is another example of the flowchart of a content information display process.

Explanation of symbols

1 Car navigation unit 1a Car navigation control unit 1b Current location detection unit 1c Map storage unit 1d Input unit 1e Display unit 1f Storage unit 1g Audio output unit 2 VICS module 3 DSRC unit 3a DSRC control unit 3b DSRC communication unit 3c Storage unit 3c1 Uplink information storage Area 3d ETC processing unit 3e IC card I / F unit 4 Control unit 5 Wireless communication unit 10 Onboard unit 20 Roadside radio device 20a Main unit 20b Antenna 30 Center device 31 Control unit 32 Input unit 33 Display unit 34 Storage unit 35 Communication unit 40 Wireless communication device 100 Distribution system B1 Back button C Vehicle G1 Alternative screen M1 Message area N Network Z Roadside area

Claims (7)

In a distribution system in which a center device that transmits content information including expiration date information via a roadside wireless device and an in-vehicle device that receives the content information are connected to be able to transmit and receive data via the roadside device,
The center device is
First communication means for transmitting the content information to the vehicle-mounted device via the roadside wireless device;
First storage means for storing a plurality of the content information and alternative content information that is an alternative to the content information;
First control means for transmitting the content information or the alternative content information to the vehicle-mounted device by the first communication means,
The in-vehicle device is
Second communication means for receiving the content information from the center device via the roadside device;
Second storage means for storing a plurality of the content information and the alternative content information received by the second communication means;
Second control means for causing the display means to display the content information or the alternative content information according to the expiration date information of the content information;
A distribution system comprising: In the center device that transmits content information including expiration date information to the vehicle-mounted device via the roadside device,
First communication means for transmitting the content information to the vehicle-mounted device via the roadside wireless device;
First storage means for storing a plurality of the content information and alternative content information that is substituted when the expiration date information of the content information is a date and time earlier than the current date and time information;
First control means for transmitting the content information or the alternative content information to the vehicle-mounted device by the first communication means;
A center device comprising: The content information includes identification information for identifying the content information,
The first control means includes
Distribution request information including identification information of the content information stored in the vehicle-mounted device is received by the first communication unit and stored in the first storage unit corresponding to the identification information included in the received distribution request information. The expiration date information of the current content information is compared with the current date and time information, and if there is content information of the expiration date information on the date and time before the current date and time information, the same identification information as the content information is set To send the substitute content information to the vehicle-mounted device by the first communication means,
The center device according to claim 2. The first control means includes
Transmitting the substitute content information to the vehicle-mounted device by the first communication means before transmitting the content information;
The center device according to claim 2. In the vehicle-mounted device that receives the content information including the expiration date information from the center device via the roadside device,
Second communication means for receiving the content information from the center device via the roadside device;
Second storage means for storing a plurality of the content information received by the second communication means and alternative content information that is an alternative to the content information;
Second control means for causing the display means to display the content information or the alternative content information in accordance with expiration date information of the content information;
On-vehicle device equipped with. The content information includes identification information for identifying the content information,
The second control means includes
The distribution request information including the identification information of the content information stored in the second storage means is transmitted to the center apparatus by the second communication means, and the content information stored in the second storage means The content information of the same identification information as the received alternative content information is overwritten and stored with the alternative content information.
The in-vehicle device according to claim 5. The second control means includes
When displaying the content information on the display means, if the expiration date information of the content information is a date and time prior to the current date and time information, the alternative content information is displayed on the display means.
The in-vehicle device according to claim 5.

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