JP2009294890A - Distribution system and onboard unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mitigate lighten operating burden when inputting taste information by previously storing user's taste and automatically reflecting it on the taste information. <P>SOLUTION: In the distribution system 100, the onboard unit 10 and a roadside radio device 20 are connected together through DSRC communication, the roadside radio device 20 and a center device 30 are connected together by a network N, and the onboard unit 10 has a communication module 2 which communicates with the center device through the roadside radio device, stores a user taste data table T2, a genre reproduction frequency table T3, and a genre-taste data relation table T4 in a storage unit 1f, automatically updates the user taste data table through taste data automatic selection processing, and includes the taste information in uplink information m1 to transmit them to the center device 30. The center device 30 composes content information to be distributed to the onboard unit 10 based upon the taste information included in the uplink information m1 received from the onboard unit 10, and distributes the content information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a distribution system and a vehicle-mounted device.

  Conventionally, an in-vehicle device such as a navigation device performs narrow area wireless communication with a roadside wireless device installed on the road using DSRC (Dedicated Short Range Communication) or the like, and information is transmitted from the center device via the roadside wireless device. It is possible to receive the offer. That is, bidirectional communication between the vehicle-mounted device of the vehicle and the roadside wireless device is possible only while the vehicle is within the communication range of the roadside wireless device. (Information on stores and medical institutions) and advertising information.

In addition, the on-vehicle device stores various content information distributed from the roadside wireless device, so that the various content information can be reproduced even in an environment where the content information cannot be reproduced at the time of reception due to communication with the roadside wireless device. This is possible (see Patent Document 1).
JP 2007-109032 A

  By the way, although a lot of content information is distributed to the said onboard equipment, the content information according to a user preference is not necessarily distributed. Therefore, it is considered that uplink information reflecting the user's preference is transmitted from the vehicle-mounted device to the center device, and content information corresponding to the user's preference is distributed from the center device based on the received uplink information. Has been.

  However, in order to reflect the user's preference in the uplink information, it is necessary to create the preference information by inputting from the user to the vehicle-mounted device, and to include the preference information in the uplink information.

  The present invention has been made in view of the above-described problems. The purpose of the present invention is to store the user's preferences in advance and automatically reflect them in the preference information, thereby inputting the preference information. It is to reduce the operation burden.

In order to solve the above-mentioned problem, the invention described in claim 1
A distribution system comprising: an on-vehicle device; a roadside wireless device connected to the vehicle-mounted device so as to be capable of wireless communication; and a center device that distributes content information to the on-vehicle device via the roadside wireless device,
The in-vehicle device is
A communication means for communicating with the center device via the roadside device;
Storage means for storing user preference information to be transmitted to the center device and update information for updating the preference information;
Updating means for updating the preference information stored in the storage means to new preference information based on the update information stored in the storage means;
Control means for causing the communication means to transmit the preference information updated by the updating means;
With
The center device organizes content information to be distributed to the vehicle-mounted device based on the updated preference information received from the vehicle-mounted device, and distributes the organized content information to the vehicle-mounted device. It is characterized by.

The invention described in claim 2
Communication means for communicating with a center device that distributes content information via a roadside device;
Storage means for storing user preference information to be transmitted to the center device and update information for updating the preference information;
Updating means for updating the preference information stored in the storage means to new preference information based on the update information stored in the storage means;
Control means for causing the communication means to transmit the preference information updated by the updating means;
It is characterized by providing.

The invention according to claim 3 is the invention according to claim 2,
The preference information includes at least a genre of music,
The update information includes at least the genre of the music and the number of times the music belongs to the genre of the music,
The updating means updates the preference information including a genre of music that matches a genre of music of the update information that has a predetermined number of reproductions.

The invention according to claim 4 is the invention according to claim 3,
Playback means for playing back music;
Genre acquisition means for acquiring the genre of the music reproduced by the reproduction means;
Further comprising
The genre of the music included in the update information is the genre of the music acquired by the genre acquisition unit, and the number of reproductions is the number of reproductions by the reproduction unit.

The invention according to claim 5 is the invention according to claim 3 or 4,
The storage means further stores a table associating a genre of music included in the update information with a genre of music included in the preference information;
The update means updates the preference information including a music genre that matches a music genre included in the update information and a music genre associated with the table.

The invention according to claim 6 is the invention according to any one of claims 2 to 5,
Further comprising a storable area determination unit that acquires a storable capacity of the storage unit and determines whether to store the content information based on the acquired storable capacity of the storage unit;
The updating unit updates the preference information when the content information is determined to be stored by the storable area determination unit.

  ADVANTAGE OF THE INVENTION According to this invention, a user's preference can be memorize | stored previously and it can be made to reflect in preference information automatically, and the operation burden at the time of input of preference information can be reduced.

(First embodiment)
First, the configuration will be described.
FIG. 1 shows a distribution system 100 in the present embodiment.
As shown in FIG. 1, the distribution system 100 includes an in-vehicle device 10, a roadside wireless device 20, and a center device 30 that are mounted on a vehicle C. The center apparatus 30 distributes content information to the vehicle-mounted device 10 via the roadside apparatus 20.
A plurality of roadside wireless devices 20 are installed on the road or in parking lots, 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 wireless communication.

The content information, which will be described later in detail in terms of data format, provides content information in addition to content (text information, image information, audio information, etc.) such as store advertisements, parking lots, and medical facility guidance. Information related to the company, information on the expiration date of the content information (for example, the start and end date of the expiration date), information on the target point where the service can be provided (for example, latitude / longitude indicating the location of the advertised store or store) Name). For example, if the content information includes position information, latitude / longitude information is also stored, but if the content information does not include position information, the latitude / longitude information is not necessary, and the data area indicating the position information contains no information. Not stored.
In addition, as content information, a playback point where a pop-up screen for notifying the content information should be displayed (for example, latitude / longitude indicating the point where the pop-up screen is displayed, road type or pop-up screen displaying the pop-up screen) Information including direction information), transition information of content information display screen (information specifying a screen to be displayed next), and the like may be stored.

Hereinafter, each component apparatus will be described in detail.
As shown in FIG. 2, the roadside apparatus 20 includes a main unit 20a and an antenna 20b. The roadside apparatus 20 radiates a DSRC radio wave having a limited reach distance from an antenna 20b installed on the side of the road or above the road. This radio wave radiation range is hereinafter referred to as a roadside area Z. 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 in diameter. Since the transmission output of DSRC from each roadside apparatus 20 is set to the same level, the roadside area Z of each roadside apparatus 20 is substantially constant regardless of the installation location.

  The main body device 20a 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 20b 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. As the main unit 20a, a computer terminal including a control unit that performs information processing and communication control, a storage unit, and the like can be applied.

The vehicle-mounted device 10 is mounted on the vehicle C and has a function of performing a process for using an ETC (Electronic Toll Collection System) by DSRC in addition to a navigation function of performing a process for guiding to a guide route. Yes.
As shown in FIG. 3, the vehicle-mounted device 10 includes a car navigation unit 1, a communication module 2, a DSRC unit 3, a control unit 4, and a playback unit 5.

The control unit 4 functions as a control unit, and 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. Centralized control.
For example, the control unit 4 controls the communication operation of the DSRC unit 3 when performing road-to-vehicle communication with the roadside apparatus 20. The control unit 4 controls the DSRC unit 3 in cooperation with the DSRC control unit 3a of the DSRC unit 3. In addition, the control unit 4 performs storage and reproduction control of content information received from the center device 30 via the DSRC unit 3.

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, and the like, and performs processing for guiding the vehicle C to the guide route.
The car navigation control unit 1a determines from the current location of the vehicle C to the destination set via the input unit 1d based on the current location information acquired from the current location detection unit 1b and the map information stored in the map storage unit 1c. A guide route is calculated. And the car navigation control part 1a produces | generates the map screen for guide | inducing to the guidance route calculated using the map information memorize | stored in the map memory | storage part 1c, and displays it 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. The angle sensor detects the acceleration of the vehicle (rotation speed in the horizontal direction per unit time) indicating the amount of change in the moving direction, and the direction sensor detects the geomagnetism and detects the absolute direction of the vehicle. The current location detection unit 1b generates current location information (information such as longitude and latitude) indicating the current location of the vehicle based on each detection result acquired from these sensors, and outputs the current location information to the car navigation control unit 1a.

  The map storage unit 1c includes 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 communication module 2, and the like. .

The input unit 1d includes an operation key and a touch panel configured integrally with the display unit 1e. The input unit 1 d generates operation signals corresponding to these operations and outputs them to the control unit 4.
The display unit 1 e includes a monitor and displays various types of information on the monitor according to the control of the control unit 4. The various information includes, for example, a setting screen, a map screen, a display screen for content information received from the center device 30, and the like.

The storage unit 1f includes a memory and the like, 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 functions as a storage unit that stores a user preference data table T2, a genre reproduction count table T3, a genre-preference data association table T4, and the like used by preference data automatic selection processing described later.
The storage unit 1 f stores uplink information m <b> 1 to be provided to the center device 30 and also stores content information received from the center device 30. When there are a plurality of regular distribution providers, the uplink information m1 is generated by the control unit 4 with contents corresponding to each distribution company and stored in the storage unit 1f. Here, the regular distribution company means a distribution company for which the user has contracted for distribution of content information.
The control unit 4 constantly updates and stores the uplink information m1 in the storage unit 1f so that it has the latest contents. Details of the uplink information m1 will be described later.

The communication module 2 functions as a communication means and 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 a communication center. The communication module 2 receives traffic jam information, road traffic information, and the like from the communication center and outputs them to the control unit 4. Examples of the communication center include a VICS center, but are not limited thereto. Further, information received from the communication center is not limited to traffic jam information and road traffic information.
In addition, information such as the Internet can be obtained by using communication means other than DSRC such as WiMax (Worldwide Interoperability for Microwave Access) as the communication module 2.

The DSRC unit 3 performs processing for using ETC by DSRC, communication processing for receiving content information from the center device 30, and the like.
As shown in FIG. 3, the DSRC unit 3 includes a DSRC control unit 3a, a communication unit 3b, a storage unit 3c, an ETC processing unit 3e, and an IC card I / F 3f.

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 communication unit 3b is controlled so that payment information is transmitted to and received from an ETC base station (a radio base station provided near the ETC gate to perform ETC payment). . Further, the ETC processing unit 3e performs a payment information writing process.
In addition, when content information is received from the center device 30, the information stored in the uplink information storage area M of the storage unit 3 c is transmitted to the roadside apparatus 20 by the communication unit 3 b according to the instruction of the control unit 4. On the other hand, when content information is received via the roadside apparatus 20 by the communication unit 3 b, it is output to the control unit 4.

  The communication unit 3b includes, for example, an antenna fixed at a position near the windshield on the dashboard of the vehicle C, and transmits / receives DSRC radio waves to / from the roadside apparatus 20 and the ETC base station via the antenna. Do.

The storage unit 3c stores a control program executed by the DSRC control unit 3a.
In addition, an uplink information storage area M is provided in the storage unit 3c. The uplink information storage area M is a storage area provided exclusively for the uplink information m1 for providing information desired by the user to the center device 30, and in addition to the uplink information m1, the characteristic information of the vehicle-mounted device 10 Is memorized.

  The uplink information m1 is information used to determine what kind of content information is to be distributed in the center device 30, although a specific data storage example will be described later. The uplink information m1 is created for each service provider, and handles multi-purpose information such as the point where the vehicle C stops, the preference information of the user of the vehicle-mounted device 10, and the benefits for the next visit, etc. Member information etc. are included. The service provider determines content information to be distributed to the vehicle-mounted device 10 based on such information.

  The preference information is information that reflects the preference of the user of the vehicle-mounted device 10 and is created based on the preference data of the content information distributed for each service provider. Although details will be described later, in the present embodiment, the center device 30 distributes the distribution preference data table T1 to the vehicle-mounted device 10 as preference data. The vehicle-mounted device 10 creates a user preference data table T2 that reflects user preferences based on the distribution preference data table T1. The user preference data table T2 includes preference information, and the preference information is reflected on the uplink information m1 and transmitted to the center apparatus 30.

  The characteristic information refers to information related to device characteristics of the vehicle-mounted device 10. The characteristic information includes the OBE ID of the OBE 10, the language that the OBE 10 can support, the map geodetic system, the copyright management technology that the OBE 10 can support, the display resolution of the display unit 1e, and SVG (Scalable Vector Graphics). ), Storage capacity capable of storing content information, and the like. The vehicle-mounted device ID is identification information unique to each vehicle-mounted device 10.

The ETC processing unit 3e reads and writes payment 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 3f.
The IC card I / F 3f 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 3e.

  The playback unit 5 is configured to be connected to a device capable of playing a CD (Compact Disk) or a DVD (Digital Versatile Disk) or a USB (Universal Serial Bus) audio, and can play music stored in various media. it can. The control unit 4 instructs the playback unit 5 to play back the music, and acquires the genre of the music by a music genre acquisition process described later.

Next, the center device 30 will be described.
The center device 30 includes a control unit, a storage unit, and the like, stores content information, and distributes the content information to the vehicle-mounted device 10 via the roadside wireless device 20.
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 is provided for each distribution company. 1 shows an example in which the center apparatus 30 is connected to the roadside apparatus 20 via the network N, but the roadside apparatus 20 may have some functions of the center apparatus 30. In this case, there is a center device 30 as a server that manages the functions of the center device 30 held by the plurality of roadside wireless devices 20, and the center device 30 that plays the role of the server is connected via the network N to the roadside wireless device 20. And may be connected.

Hereinafter, the details of the content information will be described with reference to FIGS. 4 and 5.
FIG. 4 shows an example of the data structure of content information distributed from the center apparatus 30. As shown in FIG. 4, a plurality of information groups are delivered from the center device 30 at a time, and the vehicle-mounted device 10 receives the plurality of information groups and accumulates them in the reproduction or storage unit 1f.
Here, each of the information groups 1, 2,... N in FIG. 4 is one piece of content information, and the in-vehicle device 10 performs a reproduction process in units of the content information.

  As shown in FIG. 4, one piece of content information is composed of a plurality of elements classified by content. Each component includes an ID number (00, 01,...) And actual data stored corresponding to the ID number. In FIG. 4, the content information constituting the information group 1 is defined by ID00 (indicating that the ID number is “00”, the same applies hereinafter), ID01, ID02, ID03, ID04, ID05, ID10, and ID30. Indicates that information is included.

FIG. 5 shows an example of the format of content information.
As shown in FIG. 5, the content information includes information with individual IDs, for example, configuration ID information, service provider information, information providing company information, reproduction conditions, target point information, detailed information, preference data, and the like. include.

  The configuration ID information of ID00 is information indicating a list of identification numbers of each information included in the content information. By confirming the presence / absence of the identification number of each information in the configuration ID information, it is possible to immediately determine whether or not each information exists.

The identification number indicates the classification of each information included in the content information.
The identification numbers are assigned from ID00 to ID255. For example, ID10 indicates target point information and ID40 indicates detailed information.
The information corresponding to each ID included in the content information includes header information (not shown), and the content corresponding to each ID such as an information byte indicating the amount of information included in each ID. Information to be shown, a flag, and the like are stored as header information.
Hereinafter, each piece of information corresponding to the identification number will be described.

The service provider information of ID01 is information for specifying the service provider, and is, for example, a service provider code uniquely assigned to the service provider.
The information providing company information of ID02 is detailed information regarding the content information. For example, the company code that can specify the information providing source of the content information, the information code individually assigned to the content information by the service provider, and the content Information display text for indicating the content of the information, preference data category to which the content information belongs, and the like.
In addition, a text or the like for notifying the company corresponding to the company code may be stored as the content information of ID02. As described above, the information code is a code assigned to the content information, and the content information can be identified.
The reproduction condition of ID03 is an immediate / accumulation code indicating whether the content information received by the vehicle-mounted device 10 is immediately reproduced or accumulated (stored) in the storage unit 1f.

The target point information of ID10 refers to a store or facility that provides a service, and the target point information includes, for example, target point coordinates (latitude and longitude) indicating the position of the target point. In the case of content information that does not have target point coordinates, description information for screen transition may be stored.
In the case of content information with target point coordinates, in addition to target point coordinates (latitude and longitude) indicating the position of the target point, target point display text indicating the target point name, etc., when the target point is a parking lot Affiliated parking lot information indicating a parking lot that is affiliated with the parking lot, icon display image data that is icon data representing a place where the service can be provided, display character data that is text information for explaining the service, and service Display image data which is a still image representing the phonetic character string, phonetic character string data which is the phonetic character string information representing the service, and the like.
In addition, it includes, for example, compressed voice data relating to the description of the target point, voice playback order indicating the playback order of the phonetic character string and the compressed voice, video data, service URL, and the like. The compressed audio data may store music data, and the video data may store a promotion video of the music. In this case, the genre such as the music piece may be stored in the display character data or the detailed information of ID 40 described later.
In the case of content information that does not have a target point, information for explanation for screen transition may be stored.

Detailed information on the ID 40 stores detailed information on the content information, and can be used for general purposes.
The copy control flag is a flag indicating whether or not to write detailed information data in the member information of the uplink information m1 when the vehicle-mounted device 10 receives the content information. When the copy control flag is on (when the value is “1”), the detailed information data of ID40 is written to the member information of the uplink information m1, and the copy control flag is off (when the value is “0”). In this case, control is performed so that the detailed information data of ID40 is not written in the member information of the uplink information m1.
Therefore, when the copy control flag is turned on, the member information is stored in the detailed information data. Therefore, in the above example, the information content flag takes the value “2”.

  The information content flag is identification information for indicating the type of content of the detailed information data. In this embodiment, when the information content flag is “0”, it indicates that the information code is stored in the detailed information data, and when it is “1”, the skew search code is stored in the detailed information data. It shows that. The skewer search code is a code for identifying the type of the content information. For example, the service provider indicates that the content search information is coupon information if the skewer search code is “00001”, and that the content information is new arrival information if “00002”. Is set, the vehicle-mounted device 10 can search for content information using the skewer search code. When the information content flag is “2”, it indicates that the member information is stored in the detailed information data.

The detailed information data stores an information code, a skewer search code, member information, and the like. In addition, in the case where music data is stored in text information for explaining the contents of the content information or target point information of ID10, the genre of the music may be stored.
The display character data is information for assisting the user by displaying on the display unit 1e, such as information for guidance on service target points and screen transitions, search terms for search, and the like. The phonetic character string stores information to be transmitted to the user by voice.
The display character data and the phonetic character string are usually related to the detailed information data.

  The preference data information of ID80 is information used for selecting content information to be distributed. The preference data information includes, for example, preference data version information, preference data display text, preference data number, preference data display nest, preference data target identifier, preference data default value, phonogram string, and the like.

FIG. 6 shows in detail the data format of the preference data information of ID80.
The preference data display text is character information used when displaying the contents of ID80 on the display unit 1e of the vehicle-mounted device 10. The preference data number is a numerical value of 1 to 127 assigned to the preference data 1 to the preference data 127 sequentially.
The preference data display nest is information indicating a position when the display text of the preference data display is displayed on the display unit 1e. In the present embodiment, there are eight levels, and any number of 0 to 7 is set. Stored. For example, “0” indicates the left end of the display unit 1e, and “1” is determined as a position shifted from the left end to the right by one full-width character.

The preference data target identifier stores a value indicating preference data that the vehicle-mounted device 10 should transmit to the center device 30. The preference data with the value “0” is information as a menu of preference data, and is not transmitted from the vehicle-mounted device 10 to the center device 30. The preference data with “1” indicates the category of preference data. That is, it is determined that the preference data is preference data to be transmitted from the vehicle-mounted device 10 to the center device 30.
The preference data default value stores a default value indicating whether or not the preference data is selected. This indicates that preference data with a value “0” stored in the field is not selected, and preference data “1” indicates selection. This value is set by the service provider. The phonetic character string stores data for notifying preference data by voice in the vehicle-mounted device 10.

  In the present embodiment, as shown in FIG. 6, preference data 1 to 127 is stored in the data area corresponding to ID 80, and preference data X (X is an arbitrary integer of 1 to 127) that is not used. ) Does not store any data. For example, in the ID 80, when only the preference data 1 to 100 is desired to be used, no data is stored in the preference data 101 to 127.

  In the vehicle-mounted device 10, the preference data information of ID 80 distributed from the center device 30 is edited according to the user's preference. The vehicle-mounted device 10 includes the edited preference data information in the uplink information m1 and transmits it to the center device 30. Thereafter, in order to make a distinction, a preference data table (a data table including preference data 1 to 127 in FIG. 6) using ID 80 preference data information distributed from the center device 30 to the vehicle-mounted device 10 is distributed. The preference data table T1 is referred to as a preference data table reflecting the user's preference in the vehicle-mounted device 10 and is referred to as a user preference data table T2.

FIG. 7 shows a data storage example of the distribution preference data table T1 distributed from the center apparatus 30 to the vehicle-mounted device 10.
As shown in FIG. 7, the distribution preference data table T1 includes a “preference data number” field, a “preference data display text” field, a “preference data display nest” field, a “preference data target identifier” field, a “preference data”. It consists of a “default value” field and a “phonetic character string” field.
The value of the “preference data number” field is the preference data number of ID80. The value of the “preference data display text” field is a text for display of preference data of ID80. The value of the “preference data display nest” field is the ID 80 preference data display nest.
The value of the “preference data target identifier” field is the preference data target identifier of ID80. The value of the “preference data default value” field is a preference data default value of ID80. The value of the “phonetic character string” field is a phonetic character string of ID80.

  As shown in FIG. 6, the preference data information of ID80 includes preference data 1 to preference data 127, so that the delivery preference data table T1 has a maximum of 127 records as shown in FIG. . As described above, the distribution preference data table T1 storing data as shown in FIG. 7 is distributed from the center device 30 to the vehicle-mounted device 10, and the distribution preference data table T1 distributed in the vehicle-mounted device 10 is distributed. Is edited according to the user's preference (indicating that the content of the distribution preference data table T1 is changed), and is included in the uplink information m1 and transmitted to the center device 30.

FIG. 8 shows an example in which data of the user preference data table T2 generated in the vehicle-mounted device 10 is stored. As shown in FIG. 8, the user preference data table T2 includes a “preference data display text / nest” field, a “preference data selection” field, and a “preference data number” field.
In the “preference data display text / nest” field, there are preference data display text in the “preference data display text” field of the distribution preference data table T1 and preference data display nest in the “preference data display nest” field. Stored. In the example shown in FIG. 8, for the convenience of explanation, the display text is described by reflecting the value of the display nest.
In the “preference data selection” field, a value indicating whether or not preference data is selected is stored. This indicates that preference data with a value “0” stored in the field is not selected, and preference data “1” indicates selection. That is, when the user of the vehicle-mounted device 10 registers with the service provider and the distribution preference data table T1 is distributed to the vehicle-mounted device 10 for the first time after registration, the value of the “preference data selection” field of the user preference data table T2 Stores the value of the “preference data default value” field of the distribution preference data table T1 as it is.
In the “preference data number”, an identification number assigned to the preference data to be notified to the center device 30 is stored. In the present embodiment, the number of pieces of preference data notified to the center apparatus 30 is 96. In other words, since there is a maximum of 128 pieces of preference data in the delivery preference data table T1, if there are 96 or more pieces of preference data whose preference data target identifier value is 1, up to 96 pieces of preference data in ascending order of preference data numbers. 30 is transmitted.
As described above, the user of the vehicle-mounted device 10 edits the preference data based on the distribution preference data table T1 as shown in FIG. Is reflected, and a user preference data table T2 as shown in FIG. 8 is created.

In FIG. 9, an example of the preference data setting screen G1 displayed on the display part 1e of the onboard equipment 10 in this Embodiment is shown. As shown in FIG. 9, the preference data setting screen G1 includes a preference data display text display field G1a, a preference data selection field G1b, and the like.
In the preference data display text display column G1a, the value stored in the “display text / nest” field of the user preference data table T2 is displayed.
In the preference data selection field G1b, the value stored in the “preference data selection” field of the user preference data table T2 is displayed. The shaded area in the preference data selection field G1b shown in FIG. 9 indicates that the value is selected.

The preference data setting screen G1 shown in FIG. 9 shows a case where data is displayed when data is stored as in the user preference data table T2 shown in FIG. That is, for example, a record in which the value of the “preference data display text / nest” field is “regional information” has a value of “1” in the “preference data selection” field, and therefore the text display field G1a for display of preference data. The preference data selection field G1b corresponding to the line in which “Regional information” is displayed is “ON”.
The user selects the preference data displayed on the setting screen G1 for the preference data of the corresponding row in the preference data selection column G1b, for example, by selecting “OFF” in the preference data selection column G1b by input from the input unit 1d. The selection / non-selection can be changed. That is, for example, when an instruction is given from the input unit 1d so that the preference data selection column G1b of the row displaying “regional information” in the preference data display text display column G1a is changed from “ON” to “OFF”, In a record in which the value of the “preference data display text / nest” field in the user preference data table T2 is “regional information”, the value of the “preference data selection” field is changed from “1” to “0”. become. In this way, the user changes the contents of the user preference data table T2.
The value of the “preference data selection” field of the user preference data table T2 described above is included in the uplink information m1 and transmitted to the center apparatus 30.

  Content information created in advance including the information of each ID is stored in the center device 30. At the time of distribution, the center device 30 selects content information to be distributed among these pieces of content information. Information on each ID is included in the content information as necessary, and not all ID information is always included in the content information. For example, if there is no partner parking lot designated as a partner at the target location, the partner parking lot information is not included in the target location of ID10.

Next, the uplink information m1 will be described with reference to FIG.
Uplink information m1 includes distribution company specific information, destination / waypoint of vehicle C, cumulative travel distance, preference genre table version, preference genre data, member information, past stopovers, reception / playback history, etc. It is. As illustrated in FIG. 10, the uplink information m <b> 1 is generated for each distribution company such as the distribution companies A and B and stored in the uplink information storage area M.

The distribution company identification information is information for identifying a distribution company for which the user has previously contracted for distribution of content information, and stores, for example, a service provider code of ID01.
The destination / waypoint is information on the latitude and longitude of the destination set in the car navigation unit 1 and information on the latitude and longitude of the waypoint that passes through the guidance route to the destination set in the car navigation unit 1. . For example, the target point coordinates of ID10 set as the destination or waypoint are stored.

The cumulative travel distance is information on the cumulative travel distance of the vehicle C from the time when the vehicle-mounted device 10 is purchased and the vehicle-mounted device ID is registered in the center device 30 to the current location.
The preference genre table version stores the version of the distribution preference data table T1 distributed by the service provider. That is, the preference data version information of ID80 is stored. When the distribution preference data table T1 distributed from the service provider is updated, the preference data version information of ID80 is also updated. Therefore, the latest in-vehicle device 10 has received the preference genre table version of the uplink information m1. The preference data version information is stored.

  In the preference genre data, preference information that reflects the user's preference based on the delivery preference data table T1 delivered by the service provider is stored. Based on the preference genre data, the center apparatus 30 organizes and transmits content information to be distributed to the vehicle-mounted device 10. In the present embodiment, the value of the “preference data selection” field (value of “0” or “1”) in the user preference data table T2 is stored. In other words, in the present embodiment, since the user preference data table T2 can set up to 96 pieces of preference data as described above, 96 bits of data are stored in the preference genre data of the uplink information m1. . The center device 30 indicates the preference data in which the value of the “preference data target identifier” field in the distribution preference data table T1 is “1”, and the 96-bit data (that is, preference information) of the preference genre data of the uplink information m1. ) To determine whether or not the preference data is selected.

Detailed information data of ID 40 of the content information distributed from the center device 30 is written in the member information. Member information handles multi-purpose information such as individually delivering benefits (coupon information) at the next visit. In addition, since it is considered that the member information is received by a communication means other than DSRC, the configuration may be such that input from the vehicle-mounted device 10 is possible. As described above, whether or not data is written from the detailed information data of ID40 is determined by the copy control flag of ID40.
The past stop-in place is the latitude and longitude information and the time information of the point where the vehicle C has stopped in the past (that is, the power of the vehicle-mounted device 10 is turned on or off).
The reception / reproduction history is a history of information codes of received content information, information codes of reproduced content information, and the like.

Further, as shown in FIG. 10, the uplink information storage area M includes a characteristic information area m2 that is an area for storing the characteristic information described above. In the characteristic information area m2, when a communication path is established by DSRC connection between the roadside apparatus 20 and the vehicle-mounted device 10, a transmission request for characteristic information is made from the roadside apparatus 20 to the vehicle-mounted device 10. Characteristic information to be transmitted will be stored.

Next, the operation will be described.
FIG. 11 shows the flow of processing in each device of the center device 30, the roadside device 20, and the vehicle-mounted device 10 when content information is distributed.
As shown in FIG. 11, when the engine of the vehicle C is started and the power of the vehicle-mounted device 10 is turned on (step S1), the characteristic information of the vehicle-mounted device 10 is generated, and the uplink information storage area of the storage unit 3c It is written in the characteristic information area m2 of M (step S2). The characteristic information is obtained by the control unit 4 inquiring about each item such as the display unit 1e about items that have been negotiated with the center device 30 in advance, or by reading information stored in the storage unit 1f in advance. get. Then, the control unit 4 codes the acquired information, and the code is written in the characteristic information area m2. Actually, control information for instructing writing is output to the DSRC control unit 3a, and the DSRC control unit 3a is written in the characteristic information area m2.

  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 a connection process using the DSRC unit 3 of the vehicle-mounted device 10 and DSRC communication. Is started (steps S3a and S3b). That is, when a DSRC radio wave is transmitted and a response from the vehicle-mounted device 10 is obtained, a communication path is established. When the communication path is established, the roadside apparatus 20 transmits notification information indicating that the connection is completed to the center apparatus 30 (step S4a). On the other hand, notification information indicating that the connection is completed is output from the DSRC unit 3 of the vehicle-mounted device 10 to the control unit 4 (step S4b). At the time of DSRC connection, the vehicle-mounted device ID for identifying the vehicle-mounted device 10 stored in the storage unit 3 c or the like of the vehicle-mounted device 10 is transmitted to the center device 30.

Next, when a request for transmission of characteristic information is made from the roadside apparatus 20 to the DSRC unit 3 of the vehicle-mounted device 10, the characteristic information written in the characteristic information area m2 is transmitted from the DSRC unit 3 to the roadside apparatus 20. (Step S5). The characteristic information is transmitted to the center apparatus 30 via the roadside apparatus 20.
In the center apparatus 30, it is determined whether or not the user of the vehicle-mounted device 10 is a member of the distribution service based on the vehicle-mounted device ID or the like acquired at the time of DSRC connection (step S6).

If it is determined that none of the vehicle-mounted device IDs of all members of the distribution service stored in the center device 30 matches the received vehicle-mounted device ID and is a non-member (step S6; N), the member is not a member. Content information is transmitted to the vehicle-mounted device 10 via the roadside apparatus 20 (step S61). Thereafter, the process proceeds to step S16. Non-member content information includes public advertising information such as train delay information and tax payment notification information, and private advertising information that is not likely to become spam or spam. It is information of contents for. In the vehicle-mounted device 10, the distributed content information is stored or reproduced (step S11). The stored content information is reproduced at a predetermined timing.
On the other hand, if there is a matching vehicle-mounted device ID, it is determined that the member is a member (step S6; Y), and the notification information of the service provider code of the distribution provider is transmitted to the roadside apparatus 20 (step S7). In step S7, content information of other information (for example, distributing ID10 for displaying the Welcom screen on the display unit 1e) may be included together with the service provider code.

  When the service provider code notification information is received via the roadside apparatus 20, the service provider code included in the uplink information m1 stored in the storage unit 1f and the notified service provider code are obtained. Collation is performed (step S8). If there is no matching service provider code (step S8; N), no processing is performed and an area out is awaited.

  If there is a matching service provider code (step S8; Y), it is determined that the distribution provider of the received service provider code is a legitimate distribution provider, and the uplink information corresponding to the service provider code m1 is read from the storage unit 1f and written to the uplink information storage area M (step S9). As described above, the uplink information m1 is generated and updated according to each distribution company, and thus has the latest contents according to the distribution company.

On the other hand, default content information is distributed to the vehicle-mounted device 10 via the roadside apparatus 20 by the center apparatus 30 (step S10). The default content information is information that does not cause spam, such as public advertisement information. In the vehicle-mounted device 10, the distributed content information is stored or reproduced (step S11). Specifically, if the immediate / accumulation code of ID03 of the received content information indicates accumulation, the content information is stored in the storage unit 1f, and if the immediate / accumulation code of ID03 indicates immediate. The content information is reproduced at a predetermined timing after reception.
Further, the center apparatus 30 requests the vehicle-mounted device 10 to transmit the uplink information m1 written in the uplink information storage area M (step S12). Thereafter, the center device 30 periodically polls the in-vehicle device 10 for the uplink information m1 until the on-vehicle device is out of the area (until the wireless communication with the on-vehicle device is interrupted).

  When the uplink information m1 is written, the DSRC unit 3 transmits the uplink information m1 stored in the uplink information storage area M via the roadside apparatus 20 in response to polling from the center apparatus 30. Is transmitted to the center device 30 (step S13).

  In the center device 30, content information suitable for the taste of the member is organized from the transmitted uplink information m1, and the content information is distributed to the vehicle-mounted device 10 (step S14). In the vehicle-mounted device 10, the distributed content information is stored or reproduced (step S15).

Thereafter, when all the content information to be distributed by the center device 30 is distributed, message information for notifying the end of distribution is generated and transmitted to the vehicle-mounted device 10 (step S16), and the process ends. The area out may be prompted to the user together with the transmission of the message information.
As described above, the content information distributed from the center apparatus 30 is stored in the storage unit 1f of the vehicle-mounted device 10 or reproduced at a predetermined timing by the processing flow shown in FIG.

Next, operation | movement of the onboard equipment 10 in this Embodiment is demonstrated.
In FIG. 12, the music genre acquisition process performed in the onboard equipment 10 is shown. The process is executed by the cooperation of the control unit 4 and the program stored in the storage unit 1f when the music is played back by the playback unit 5. In this process, the genre of the music being played back by the playback unit 5 is acquired, and the genre playback count table T3 is updated by counting the number of times of the acquired genre in a genre playback count table T3 described later.

  As shown in FIG. 12, the genre of the music being reproduced is acquired by the reproducing unit 5 (step S101). Specifically, for example, when a CD is played back by the playback unit 5, the genre of the music being played back is acquired by referring to the CDDB (CD Data Base) of the CD, or the MP3 is played back. In this case, the genre of the music being reproduced is acquired by referring to the ID3 tag.

Next, in step S101, it is determined whether or not there is a genre of music being reproduced by the reproduction unit 5 (step S102).
When it is determined that there is a genre of the music being played back by the playback unit 5 (step S102; YES), 1 is assigned to the counter variable i (step S103). Next, the genre reproduction number table T3 stored in the storage unit 1f is referred to, and the genre number N1 is acquired (step S104).

FIG. 13 shows an example of the genre reproduction number table T3.
As shown in FIG. 13, the genre reproduction count table T3 includes a “genre” field, a “number of times” field, and a “last reproduction time” field.
The “genre” field stores the genre of the music reproduced in the reproduction unit 5 of the vehicle-mounted device 10. The “number of times” field stores the number of times that the music piece belonging to each genre has been reproduced in the reproducing unit 5. The “last playback time” field stores the time when the music belonging to each genre was most recently played.

In the example of the genre reproduction number table T3 shown in FIG. 13, the music belonging to the genre “Pop” is “25” times played in the reproduction unit 5, and the latest reproduction time of the music of the genre is “February 2008”. 12th 12:34 ".
In step S104, the number of genres N1 is acquired by counting the number of records stored in the genre reproduction count table T3.

  It is determined whether or not the counter variable i is equal to or less than the genre number N1 acquired in step S104 (step S105). When it is determined that the counter variable i is less than or equal to the genre number N1 acquired in step S104 (step S105; YES), the i-th genre name in the genre reproduction count table T3 is acquired (step S106). Specifically, this is performed by referring to the i-th record of the genre reproduction count table T3 and extracting a character string stored in the “genre” field of the record.

Next, it is determined whether or not the genre of the music being reproduced by the reproduction unit 5 acquired in step S101 matches the genre acquired in step S106 (step S107). If it is not determined that the genres match (step S107; NO), the counter variable i is incremented by 1 (step S109), and the process returns to step S105.
When it is determined that the genres match (step S107; YES), the genre reproduction count table T3 is updated (step S108). Specifically, the value corresponding to the “number of times” field of the i-th record of the genre reproduction number table T3 is incremented by 1, and the current time is stored in the value corresponding to the “last reproduction time” field. Is done.

On the other hand, if it is not determined that the counter variable i is less than or equal to the genre number N1 acquired in step S104 (step S105; NO), the genre reproduction count table T3 is updated (step S110). Specifically, the i + 1th new record is added to the genre reproduction number table T3, and the genre acquired in step S101 in the “genre” field of the record is “1” indicating the number of reproductions in the “number” field. However, the update is performed by storing the current time in the “last playback time” field.
On the other hand, when it is not determined that there is a genre of music being played back by the playback unit 5 (step S102; NO), the process ends.
By the music genre acquisition process described above, the genre reproduction frequency table T3 is updated based on the genre of the music reproduced in the reproduction unit 5.

  In FIG. 14, the preference data candidate extraction process performed in the onboard equipment 10 is shown. The process is executed in cooperation with the control unit 4 and the program stored in the storage unit 1f when the preference data selection screen G1 is displayed. In this process, a genre corresponding to a record having a number of reproductions equal to or more than a predetermined number of times is extracted from records stored in the genre reproduction number table T3.

As shown in FIG. 14, the preference data candidate storage area 1fa of the storage unit 1f is initialized (step S201). Next, 1 is substituted into the counter variable i (step S202), and the genre number N2 in the genre reproduction count table T3 is acquired (step S203). Since the specific process is the same as that in step S104, the description thereof is omitted.
Next, it is determined whether or not the counter variable i is equal to or less than the genre number N2 acquired in step S203 (step S204). When it is determined that the counter variable i is equal to or less than the genre number N2 acquired in step S203 (step S204; YES), the number of reproductions of the i-th genre in the genre reproduction number table T3 is acquired (step S205). Specifically, the genre reproduction count table T3 is referred to, and the value of the “number of times” field of the i-th record is acquired.

Next, it is determined whether or not the number of reproductions of the i-th genre acquired in step S205 is equal to or greater than a specified number (step S206). Specifically, the determination is made by comparing the number of reproductions acquired in step S205 with a specified number of times (for example, 10 times) stored in advance in the storage unit 1f.
If it is determined that the number of reproductions of the i-th genre acquired in step S205 is greater than or equal to the specified number (step S206; YES), candidate extraction processing for extracting i-th genre candidates is performed (step S206). S207). For example, if the specified number of times determined in step S206 is 10, in the example of the genre reproduction number table T3 shown in FIG. 13, the value of the “genre” field is “Pop” (the value of the “number of times” field). Is “25”) and “Fusion” (the value of the “number of times” field is “12”), the candidate extraction process in step S207 is performed.

FIG. 15 shows the candidate extraction process performed in step S207. In this process, preference data candidates are extracted from the genre-preference data association table T4.
First, 1 is assigned to the counter variable j (step S301), and the genre number N3 in the genre-preference data association table T4 is acquired (step S302).

FIG. 16 shows an example of the genre-preference data association table T4. As shown in FIG. 16, the genre-preference data association table T4 includes a “genre” field and a “preference data candidate” field.
The “genre” field stores the genre of the music. In the “preference data candidate” field, a character string of preference data candidates corresponding to the genre of music is stored.
In the example shown in FIG. 16, preference data of character strings “Pop”, “Pops”, and “Pops” is associated with the genre “Pop”. That is, even if the genre of the content information is Pop, depending on the service provider, the notation such as “Pops” or “pops” may be different in the ID 80 preference data display text. -The notation of the same genre is matched by preference data relation table T4.
The genre-preference data association table T4 is stored in the storage unit 1f of the vehicle-mounted device 10 so that the content of the genre-preference data association table T4 can be changed by an input from the input unit 1d of the vehicle-mounted device 10. Also good.
Since the process in step S302 is the same as that in step S104, the description thereof is omitted.

  In step S303, it is determined whether or not the counter variable j is equal to or less than the genre number N3 acquired in step 302 (step S303). When it is determined that the counter variable j is equal to or less than the genre number N3 acquired in step 302 (step S303; YES), the jth genre in the genre-preference data association table T4 is acquired (step S304). Specifically, the j-th record of the genre-preference data association table T4 is referred to, and the value of the “genre” field is acquired.

Next, it is determined whether or not the i-th genre matches the j-th genre (step S305). Specifically, this is done by comparing the value of the “genre” field of the i-th record of the genre reproduction count table T3 with the value of the “genre” field of the j-th record of the genre-preference data association table T4. Is called.
When it is determined that the i-th genre matches the j-th genre (step S305; YES), the preference data number L of the j-th genre in the genre-preference data association table T4 is acquired (step S306). Specifically, the number of records in which the value of the “genre” field of the genre determined to match in step S305 and the value of the “genre” field in the genre-preference data association table T4 is acquired as the preference data number L. In the example of the genre-preference data association table T4 shown in FIG. 16, the number of preference data L of the genre “Pop” is 3, the number of preference data L of the genre “Rock” is 2, and the number of preference data of the genre “Fusion”. L is 2.

Next, 1 is substituted into the counter variable k (step S307), and it is determined whether or not the counter variable k is equal to or less than the preference data number L acquired in step S306 (step S308). When it is determined that the counter variable k is equal to or less than the preference data count L acquired in step S306 (step S308; YES), the kth preference data candidate of the jth genre is stored in the preference data candidate in the storage unit 1f. It is held in the area 1fa (step S309). Next, the counter variable k is incremented by 1 (step S310), and the process returns to step S308.
In step S308 to step S310, the value of the “preference data candidate” field of the genre-preference data association table T4 whose genre matches the i-th genre is acquired.

If it is not determined that the i-th genre matches the j-th genre (step S305; NO), the counter variable j is incremented by 1 (step S311), and the process returns to step S303.
On the other hand, when it is not determined that the counter variable j is less than or equal to the genre number N3 acquired in step 302 (step S303; NO), the counter variable k is not determined to be less than or equal to the preference data number L acquired in step S306. (Step S308; NO), the process proceeds to Step S208.

If it is not determined that the number of reproductions of the i-th genre acquired in step S205 is equal to or greater than the specified number (step S206; NO), the counter variable i is incremented by 1 (step S208), and the process returns to step S204.
On the other hand, when it is not determined that the counter variable i is less than or equal to the genre number N2 acquired in step S203 (step S204; NO), the process ends.
By the preference data candidate extraction process described above, preference data candidates corresponding to a genre that has been played more than a specified number of times are stored in the preference data candidate storage area 1fa of the storage unit 1f.

In FIG. 17, the preference data automatic selection process performed in the onboard equipment 10 is shown. This process is executed in cooperation with the control unit 4 and the program stored in the storage unit 1f after the preference data candidate extraction process is performed when the preference data selection screen G1 is displayed. In this process, the value of the “preference data selection” field of the user preference data table T2 is selected based on the preference data candidates stored in the preference data candidate storage area 1fa, and the user preference data table T2 is updated. The value of the field is stored as preference information in the preference genre data of the uplink information m1.
In addition, the genre reproduction count table T3 and the genre-preference data association table T4 used in the processing are used as update information, and the control unit 4 functions as an update unit.

  As shown in FIG. 17, 1 is assigned to each of the counter variables i and j (step S401). Next, the user preference data table T2 is referred to, and the preference item number N4 is acquired (step S402). The preference item number N4 is the maximum value stored in the “preference data number” field of the user preference data table T2.

Next, the number of preference data candidates (hereinafter referred to as preference data candidate number N5) stored in the preference data candidate storage area 1fa of the storage unit 1f is acquired (step S403).
Next, it is determined whether or not the counter variable i is equal to or less than the preference data candidate number N4 (step S404). When it is determined that the counter variable i is equal to or less than the preference data candidate number N4 (step S404; YES), the i-th preference data display text is acquired (step S405). Specifically, the preference data display text in the “preference data display text / nesting” field of the record whose value of the “preference data number” field in the user preference data table T2 is “i” is acquired.

  Next, the jth preference data candidate in the preference data candidate storage area is acquired (step S406). It is determined whether the preference data display text acquired in step S405 matches the preference data candidate acquired in step S406 (step S407). Note that the determination in step S407 may be complete matching of the character strings, or may be partial matching before and after.

  When it is determined that the preference data display text acquired in step S405 matches the preference data candidate acquired in step S406 (step S407; YES), the i-th preference data is selected ON (step S408). ). Specifically, the user preference data table T2 is referred to, and the value corresponding to the “preference data selection” field of the record that matches the preference data display text acquired in step S405 is 1 (ON in this embodiment). Is shown).

On the other hand, when it is not determined that the preference data display text acquired in step S405 matches the preference data candidate acquired in step S406 (step S407; NO), the process proceeds to step S409.
In step S409, the counter variable j is incremented by 1 (step S409), and it is determined whether the counter variable j is equal to or larger than the preference data candidate number N5 acquired in step S406 (step S410).
If the counter variable j is not determined to be greater than or equal to the preference data candidate number N5 acquired in step S406 (step S410; NO), the process returns to step S406.
When it is determined that the counter variable j is equal to or more than the preference data candidate number N5 acquired in step S406 (step S410; YES), the counter variable i is incremented by 1 (step S411). Next, 1 is substituted into the counter variable j (step S412), and the process returns to step S404.

On the other hand, when it is not determined that the counter variable i is equal to or less than the preference data candidate number N4 (step S404; NO), the process ends.
The preference data whose character string matches the preference data candidate stored in the preference data candidate storage area 1fa by the preference data automatic selection process described above is turned ON.

  As described above, in the distribution system 100 according to the present embodiment, the preference data candidate extraction process and the preference data automatic selection process are performed based on the music genre information acquired by the music genre acquisition process in the vehicle-mounted device 10. The value of the “preference data selection” field in the user preference data table T2 is automatically updated. Therefore, it is determined that the user likes a genre having a large number of reproductions among the genres of the music reproduced by the user in the reproduction unit 5 and is selected when the genre is included in the user preference data table T2. Thus, the service provider can distribute the content information of the genre of the music that the user likes to play.

  In addition, by associating the genre of music and preference data candidates with the genre-preference data association table T4, automatic selection of preference data in the preference data automatic selection process can be performed more generally. That is, the preference data candidate corresponding to the genre of the music is managed in the genre-preference data association table T4, so that the genre of the music and the character string of the preference data display text in the user preference data table T2 do not match. However, it is possible to easily associate the genre of music with the text for displaying preference data.

In addition, the description in this Embodiment mentioned above is an example of the suitable delivery system which concerns on this invention, and is not limited to this.
For example, in the present embodiment, preference data automatic selection processing is performed based on preference data candidates that are stored in the preference data candidate storage area 1fa and that correspond to the genre of the music played back by the playback unit 5. However, what is stored in the preference data candidate storage area 1fa is not limited to the genre of music. For example, when the playback unit 5 stores the number of times the user has played a CD in the storage unit 1f, and the number of times the CD has been played exceeds a certain number of times, a preference for a specific preference data candidate such as “Rental Shop A” is preferred. It may be stored in the data candidate storage area and the preference data automatic selection process may be executed.

  Further, the preference data automatic selection process may be performed based on equalizer settings (referred to as acoustic settings such as “Pops” and “Rock”) set as conditions for music playback of the playback unit 5. For example, if the equalizer setting is set as “Pops”, the preference data candidate corresponding to the equalizer setting is stored in the preference data candidate storage area 1fa of the storage unit 1f, and the preference data is read by reading the preference data. Data automatic selection processing may be performed.

  In the present embodiment, the preference data candidate extraction process and the preference data automatic selection process are executed when the preference data selection screen G1 is displayed. Data candidate extraction processing and preference data automatic selection processing may be executed, and the user preference data table T2 may be updated. In this case, even when the user does not display the preference data selection screen G1, the uplink information m1 can be created based on the updated user preference data table T2.

  In the present embodiment, the genre reproduction count table T3 is updated when a music piece is reproduced in the reproduction unit 5, but the method of updating the genre reproduction count table T3 is not limited to this. . For example, when a playback device externally connected to the vehicle-mounted device 10 stores a playback history of music, the genre playback count table T3 may be updated from the history information, or the storage unit 1f. When content such as music is included in the ID 10 of the content information stored in the genre, when the content is reproduced, the genre reproduction count table T3 is obtained by acquiring the genre stored in the detailed information data of ID 40 or the like. May be updated.

  Further, the preference data is automatically selected based on the value stored in the genre reproduction count table T3, but the selection of preference data is canceled based on the value stored in the genre reproduction count table T3. May be. For example, the user preference data table T2 is updated so as not to select the preference data of the genre of the music that has not been played for a certain period of time, based on the value of the “last playback time” field of the genre playback count table T3. It may be.

  In the above description, an example in which a hard disk, a semiconductor nonvolatile memory, or the like is used as a computer-readable medium of the program according to the present invention is disclosed, but the present invention is not limited to this example. As another computer-readable medium, a portable recording medium such as a CD-ROM can be applied. A carrier wave is also applied as a medium for providing program data according to the present invention via a communication line.

  In addition, the detailed configuration and detailed operation of each device constituting the distribution system 100 can be changed as appropriate without departing from the spirit of the present invention.

(Second Embodiment)
Next, a second embodiment of the distribution system 100 according to the present invention will be described with reference to FIGS. In the second embodiment, the configuration of the center device 30 and the vehicle-mounted device 10 is the same as that of the first embodiment, and the processing flow of the distribution system 100 shown in FIG. 11 in the first embodiment. Since only the second embodiment is different from the first embodiment, the following description will focus on differences from the first embodiment.

  In the first embodiment, preference data candidate extraction processing and preference data automatic selection processing are performed when the preference data selection screen G1 is displayed. In the second embodiment, preference data candidate extraction processing is performed. The preference data automatic selection process is performed when the storage unit 1f of the vehicle-mounted device 10 determines that there is a free capacity capable of storing content information.

18 and 19 show the flow of processing in each device of the center device 30, the roadside wireless device 20, and the vehicle-mounted device 10 when content information is distributed in the second embodiment.
Steps S21 to S28 and S261 shown in FIG. 18 are the same as steps S1 to S8 and S61 of FIG.
Step S29 is different from step S9 in that uplink information m1 based on the preference data selected by the user of the vehicle-mounted device 10 is written to the DSRC unit. In other words, in the second embodiment, the preference data candidate extraction process and the preference data automatic selection process are not performed at the time of step S29, and the user selects by input from the preference data selection screen G1 or the like. Uplink information m1 created based on the user preference data table T2 is written to the DSRC unit.

Steps S30 to S35 in FIGS. 18 and 19 are the same as steps S10 to S15 in FIG.
When the content information is stored or reproduced in the storage unit 1f in step S35, it is determined whether or not there is a storable area for storing the content information in the storage unit 1f (step S36). Specifically, whether or not there is a storable area is determined based on whether or not the free capacity of the storage unit 1f is acquired and is equal to or less than a predetermined threshold. The control unit 4 functions as a storable area determination unit by the processing in step S36.

  When it is determined that there is a storable area (step S36; Y), the preference data in the user preference data table T2 stored in the storage unit 1f is updated (step S37). Specifically, preference data candidate extraction processing and preference data automatic selection processing are performed in step S37, whereby the preference data in the user preference data table T2 is updated.

Based on the updated user preference data table T2, uplink information m1 is created and written in the DSRC unit (step S38). The subsequent processing of step S39 to step S42 is the same as that of step S13 to step S16, respectively, so description thereof will be omitted. In step S40, the center apparatus 30 delivers content information based on the user's preference data updated by the preference data candidate extraction process and the preference data automatic selection process.
On the other hand, if it is not determined that there is a storable area (step S36; N), the process ends.

  As described above, according to the distribution system 100 in the second embodiment, at the time of area-in, first, content information is received based on the content of the user preference data table T2 set in advance by the user, and the vehicle is mounted on the vehicle. If the data can be stored in the storage unit 1f of the device 10, the user preference data table T2 is updated by the preference data automatic selection process and uplinked to receive additional content information. Therefore, when the free space of the storage unit 1f is low, the user preference data table T2 is automatically updated by the preference data automatic selection process, so that the user originally selects it by input from the preference data selection screen G1. There is no possibility that the content information of the preference data that has been received cannot be received.

  In addition, the detailed configuration and detailed operation of each device constituting the distribution system 100 can be changed as appropriate without departing from the spirit of the present invention.

It is a figure which shows the delivery system in this embodiment. It is a figure explaining the roadside area of the roadside apparatus of FIG. It is a figure which shows the functional structure of the onboard equipment of FIG. It is a figure which shows an example of the data structure of content information. It is a figure which shows an example of the data format of content information. It is an example which shows the detail of the data format of preference data. It is a data storage example of the delivery preference data table in this Embodiment. It is a data storage example of the user preference data table in this Embodiment. It is an example of the preference data setting screen displayed on the display part of onboard equipment. It is an example which shows the data format of uplink information. It is a figure explaining the flow of a process in the delivery system in 1st Embodiment. It is a figure explaining the music genre acquisition process in an onboard equipment. It is an example of data storage of the genre reproduction | regeneration frequency table in this Embodiment. It is a figure explaining the preference data candidate extraction process in onboard equipment. It is a figure explaining the candidate extraction process in onboard equipment. It is a data storage example of the genre-preference data association table in this Embodiment. It is a figure explaining the preference data automatic selection processing in an onboard equipment. It is a figure explaining the flow of a process in the delivery system in 2nd Embodiment. It is a figure explaining the flow of a process in the delivery system in 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Distribution system 10 Onboard equipment 1 Car navigation part 1d Input part 1e Display part 1f Storage part 1fa Preference data candidate preservation | save area 3 DSRC part M Uplink information storage area 4 Control part 5 Reproduction | regeneration part 20 Roadside radio | wireless apparatus 30 Center apparatus

Claims (6)

A distribution system comprising: an on-vehicle device; a roadside wireless device connected to the vehicle-mounted device so as to be capable of wireless communication; and a center device that distributes content information to the on-vehicle device via the roadside wireless device,
The in-vehicle device is
A communication means for communicating with the center device via the roadside device;
Storage means for storing user preference information to be transmitted to the center device and update information for updating the preference information;
Updating means for updating the preference information stored in the storage means to new preference information based on the update information stored in the storage means;
Control means for causing the communication means to transmit the preference information updated by the updating means;
With
The center device organizes content information to be distributed to the vehicle-mounted device based on the updated preference information received from the vehicle-mounted device, and distributes the organized content information to the vehicle-mounted device. A distribution system characterized by Communication means for communicating with a center device that distributes content information via a roadside device;
Storage means for storing user preference information to be transmitted to the center device and update information for updating the preference information;
Updating means for updating the preference information stored in the storage means to new preference information based on the update information stored in the storage means;
Control means for causing the communication means to transmit the preference information updated by the updating means;
A vehicle-mounted device comprising: The preference information includes at least a genre of music,
The update information includes at least the genre of the music and the number of times the music belongs to the genre of the music,
The in-vehicle device according to claim 2, wherein the updating unit updates the preference information including a genre of music that matches a genre of music of the update information having a number of reproductions equal to or greater than a predetermined number of times. Playback means for playing back music;
Genre acquisition means for acquiring the genre of the music reproduced by the reproduction means;
Further comprising
The genre of music included in the update information is a genre of music acquired by the genre acquisition unit, and the number of reproductions is the number of reproductions by the reproduction unit. Onboard equipment. The storage means further stores a table associating a genre of music included in the update information with a genre of music included in the preference information;
The said update means updates the said preference information containing the genre of the music in which the genre of the music contained in the said update information and the genre of the music matched by the said table are matched. The in-vehicle device described. Further comprising a storable area determination unit that acquires a storable capacity of the storage unit and determines whether to store the content information based on the acquired storable capacity of the storage unit;
The in-vehicle device according to claim 2, wherein the update unit updates the preference information when the content information is determined to be stored by the storable area determination unit.

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