JP5018689B2 - On-vehicle device, content information processing method and program - Google Patents

Description

The present invention, DSRC: OBE that processes content using wireless communications (Dedicated Short Range Communication DSRC) or the like, relates to content processing method, and a program.

Patent Document 1 discloses a DSRC vehicle-mounted device (paragraph 0001 of Patent Document 1). When the DSRC on-board unit receives information from the roadside device, it checks the memory usage status at that time. (A) If there is a free area, the received information is stored in the free area (see FIG. 2 of Patent Document 1). (S101 →... → S105 YES → S106), (b) If there is no empty area and deletion of the oldest information has been set, the oldest information is deleted and the received information is stored in the deletion area. (S101 in FIG. 2 of Patent Document 1 → S105NO → S108YES → S109 → S110) (c) If there is no free area and deletion of the oldest information is not set, information received in the memory Are not stored (S101 →... → S105NO → S108NO → S112 in FIG. 2 of Patent Document 1). The DSRC in-vehicle device also stores the received information in the deletion area after deleting the predetermined information if the deletion is permitted for the predetermined information instead of the oldest information in the memory (patent S208 YES → S209 → S210 in FIG. 3 of Document 1 and if the deletion of the predetermined information is not set, the received information is not stored in the memory (S208 NO in FIG. 3 of Patent Document 1). → S212).
JP 2007-109032 A

  In Patent Document 1, when the vehicle-mounted device downloads content information from the roadside device, the content information is stored in the memory based on the remaining storage capacity of the memory, discarded, or deletion of predetermined past information on the memory It only discloses controlling whether to store later, and does not suggest a more meaningful process for content included in content information downloaded from a roadside machine.

An object of the present invention is to provide a vehicle-mounted device, content processing method and program for processing precisely the content by adding a predetermined relationship with the content to the content information.

The in-vehicle device of the present invention extracts content information including content wirelessly from a roadside device, and information on the content that is instructed to reproduce and information on whether the content is valid or not valid from the content information In addition, there is information extracting means for extracting information on the transition destination content from the content information of the content instructed to reproduce the content instructed to reproduce, and the content in the transition destination of the content instructed to reproduce. In this case, an alternative screen generation unit that generates an alternative screen with an operation button for proceeding to the transition destination content, a current date and time detection unit that detects the current date and time, and the detection current date and time are valid for the content of the reproduction instruction If playback outside the expiration date and expiration date is not allowed, the content is controlled not to be played back, and the previous The alternate screen with operation buttons and a reproduction control means for displaying in place of the reproduction screen of the content of the reproduction instruction.

The content information processing method according to the present invention includes a reception step of wirelessly receiving content information including content from a roadside device, and information on the expiration date of the content and whether or not the content can be reproduced from the content information for the content of the reproduction instruction And extracting the information of the transition destination content from the content information of the playback instruction content with respect to the playback instruction content, and the transition destination content with respect to the playback instruction content. If present, an alternative screen generation step for generating an alternative screen with an operation button for proceeding to the transition destination content, a current date and time detection step for detecting the current date and time, and a current detection date and time for the content of the reproduction instruction Is out of the valid period and playback is not valid, Controlled so as not to live, and includes a playback control step of displaying instead an alternative screen with the operation buttons on the playback screen of contents of the reproduction instruction.

The program according to the present invention includes a reception step of wirelessly receiving content information including content from a roadside device, and extracting information on the expiration date of the content and whether or not the content can be reproduced from the content information for the content of the reproduction instruction. And an information extraction step of extracting information on the transition destination content from the content information of the content instructed to reproduce with respect to the content instructed to reproduce, Includes an alternative screen generation step for generating an alternative screen with an operation button for proceeding to the transition destination content, a current date and time detection step for detecting the current date and time, and a detection current date and time for the content of the reproduction instruction. If it is not possible to play outside the expiration date, the content will not be played. Controlled to, and to execute a reproduction control step of displaying instead an alternative screen with the operation buttons on the playback screen of contents of the reproduction instruction, to the computer.

  According to the present invention, content processing in a vehicle-mounted device is qualified by distributing content information including content, information on the expiration date of the content, and control information related to processing in the vehicle-mounted device outside the expiration date from the center device. be able to.

  According to the present invention, the vehicle-mounted device can extract information on the expiration date and whether or not reproduction is possible outside the expiration date from the content information, and appropriately perform reproduction and non-reproduction in response to the content reproduction instruction.

  ADVANTAGE OF THE INVENTION According to this invention, the onboard equipment can extract the information of the expiration date with content from content information, and can delete appropriately the content currently preserve | saved at a storage medium.

  FIG. 1 is a schematic diagram of a road-to-vehicle DSRC system 10 based on town car life navigation multi-content data. The roadside machine 11 constitutes a roadside device 15 together with the server 12, and is connected to the server 12 by wire or wirelessly. Further, the server 12 can exchange data with another server via a network such as the Internet. The roadside machine 11 is an ITS (Intelligent Transport System) vehicle-mounted device 17 mounted on an automobile 13 existing in an area having a diameter of about several to 30 m, and data is transmitted using radio waves of 5.8 GHz band. Send and receive. The ITS vehicle-mounted device 17 includes a DSRC unit 18 and a navigation unit 19.

  FIG. 2 is an explanatory diagram of a data transmission mode in the town car life navigation multi-content format. In the downlink of the multi-content format, data is classified according to its type, and ID codes “00”, “01”, “02”,. In multi-content format data transmission, data is grouped in units of information groups, and each information group has classification data with ID = “00” at the head. The classification data of ID = “00” is configuration information indicating what kind of ID is included in the information group.

  FIG. 3 is a diagram showing whether each ID is essential or optional for the configuration of the information group. ID = 00, 01, 02 must be included in each information group. ID = 03, 04, and 05 do not need to be included in the information group when providing information only with ID = 60, but must be included in the information group when providing other information. Whether or not other IDs are included in the information group is arbitrary.

  4 to 7 are classification tables assigned to each ID used in the downlink. ID = 00 is a classification of configuration ID information (an area describing what ID each information group stores). ID = 01 is a classification of a business operator, a service business code (a business code that can identify a service business), a service business display text (a service business name (service name) text information for navigation display), And a service provider phonetic character string (service company name (service name) phonetic character string information for navigation utterance).

  ID = 02 is a content classification, and is a company code (a code that can identify the information provider of the content), a company display text (information providing company name text information for navigation display), a company phonetic character string (for navigation utterances) Information providing company name phonetic character string information), information code (information code that can identify the content), information display text (content content text information for navigation display), information phonetic character string (content content phonetic character string information for navigation utterances) ), And a preference data category (category code indicating an information category to which the information corresponds).

  Similar to ID = 02, ID = 03 is a content classification, and an immediate playback / storage code (a code representing a content playback operation after reception) and a playback condition code (content playback conditions in the information provision area) Code).

  ID = 04 is a classification of an expiration date, and includes a start year / month / day / hour / minute / second (content expiration date) and an end year / month / day / hour / minute / second (content expiration date). ID = 05 is a classification of provision time, and includes business hours (business hours of content provider) and information provision time (content provision time).

  ID = 10 is the classification of the target point, the target point coordinates (latitude and longitude information of the point where the service can be provided), the target point display text (service name (store name, etc.)), partner parking information (target Partner parking lot information other than location), icon display image data (icon data representing a place where service can be provided), display character data (text information for service description), display image data (still image information representing service) , Phonetic character string data (phonetic character string information indicating service), compressed voice data (compressed voice data information), voice playback order (representing the playback order of phonetic string and compressed voice), video data (video data) Information) and a URL (URL information representing a service).

  ID = 20 is a classification of information provision points. For a total of five information provision points, information provision center coordinates (latitude and longitude information for reproducing pop-up information) and information provision areas (areas for reproducing pop-up information) are provided. Radius information from central coordinates to be defined), information provision direction code (information provision direction information for reproducing pop-up information), information provision road type (road type information for reproducing pop-up information), display image data (still image for pop-up reproduction) Data), phonetic character string data (phonetic character string information for pop-up playback, compressed voice data for compressed voice data for pop-up playback), and voice playback order (a code representing the playback order of voice data for pop-up playback). .

  ID = 30 is a classification of transition information and includes a total of eight next reproduction information codes (screen transition information). ID = 40 is a classification of detailed information, and for each of the total 8 pieces of detailed information, display character data (navigation display detailed information text information) and utterance phonetic character string (navigation utterance detailed information) Phonetic character string information).

  ID = 50 is a classification of parking lot information. For each of the 15 parking lots, a parking lot ID (ID that can identify a parking lot), detailed information (dynamic detailed information on parking lots), and special notes ( Special item of parking lot), and special item phonetic character string (special item phonetic character string for navigation utterance).

  ID = 51 can update the static information of the parking lot stored in the navigation unit 19 for a maximum of 4 meshes in units of tertiary meshes. ID = 51 is the number of tertiary meshes (notifying the number of tertiary meshes including updated parking lot static information), and the tertiary mesh code (updating parking lot static information for each mesh of 1-4). 3rd mesh code included), 3rd mesh version information (3rd mesh version information including updated parking lot static information), 3rd mesh parking lot number (number of parking static information included in updated mesh) Includes tertiary mesh parking lot static information (static information of parking lot to be updated).

  ID = 52 is deleted parking lot ID information. This information is not used when updating all parking information (new / deleted) in mesh units. ID = 52 is the number of the tertiary mesh (notifying the number of the tertiary mesh including the parking lot ID information to be deleted), the tertiary mesh code (the tertiary mesh code including the parking lot ID information to be deleted), the tertiary mesh Version information (version information of the tertiary mesh including the parking lot ID information to be deleted; the same as the version of the static information notified simultaneously with ID = 51), the number of the tertiary mesh parking lots (in the mesh to be updated) The number of parking lot static information included) and tertiary mesh deletion parking lot ID information (parking lot ID information to be deleted).

  ID = 60 is a classification of driving assistance, driving assistance image data (driving assistance image information), driving assistance phonetic character string (data driving assistance phonetic character string information), driving assistance compressed voice (data driving assistance compressed voice) Information) and voice playback order (representing the playback order of the phonetic character string and the compressed voice).

  ID = 80 is a classification of preference data, and a preference data version (preference data table version information), preference data table (preference data table display text information) for a total of 127 preference data tables. , Phonetic character strings (speech phonetic character string information in the preference data table), and detailed information (detailed information in the preference data table).

  FIG. 8 shows communication and processing between the devices performed in the transaction between the roadside device 15 and the ITS vehicle-mounted device 17. The roadside machine 11 and the server 12 constitute a roadside apparatus 15. The ITS vehicle-mounted device 17 includes a DSRC unit 18 and a navigation unit 19. Explain in chronological order. The communication between the roadside machine 11 and the DSRC unit 18 is performed using DSRC radio waves.

  As the ITS vehicle-mounted device 17 is turned on, client information data is written from the navigation unit 19 to the DSRC unit 18 in S10. In S11, the DSRC connection is established between the roadside device 11 and the DSRC unit 18 as the automobile 13 equipped with the ITS on-vehicle device 17 enters the radio wave arrival area at a distance (eg, about 30 m) where communication with the roadside device 11 is possible. Processing is performed.

  When the DSRC connection process in S11 is completed, a DSRC connection notification is made in S12 and S13. The connection notification in S12 is from the roadside device 11 to the server 12, and the connection notification in S13 is from the DSRC unit 18 to the navigation unit 19. In S <b> 14, client information is notified from the DSRC unit 18 to the server 12 via the roadside device 11.

  The server 12 determines whether the user of the ITS vehicle-mounted device 17 is a member or a non-member based on the client information notification from the DSRC unit 18, and the hardware of the ITS vehicle-mounted device 17 for appropriately reproducing the content by the ITS vehicle-mounted device 17. Know the wear information. In S <b> 18, content such as a Welcom screen is transmitted from the server 12 to the navigation unit 19 via the roadside device 11 and the DSRC unit 18. The content is organized in a multi-content format. The navigation unit 19 determines a service provider from the multi-content format.

  After S18, the server 12 periodically performs memory access polling on the DSRC unit 18 until the navigation unit 19 writes the uplink information to the DSRC unit 18 (S20). S19 indicates the first polling. In the example of this figure, since polling was performed before uplink information was written by S20, uplink information is not obtained. In S20, the navigation unit 19 writes the uplink information to the DSRC unit 18 if it is a member of the service provider, but does nothing if it is not a member.

  In S 24, the server 12 sends default content to the navigation unit 19 via the roadside device 11 and the DSRC unit 18. S29 indicates the second memory access polling. At this point, since the uplink information is written in the DSRC unit by S20, the DSRC unit 18 notifies the server 12 of the uplink information if the user is a member.

  In S33, the server 12 organizes the storage-type content suitable for the member preference based on the member information acquired from the uplink information in the multi-content format (FIG. 2) and distributes it to the ITS in-vehicle device 17. As will be described later, the roadside device 15 can interrupt the delivery of the immediate reproduction type content by interrupting the delivery of the accumulation type content one or more times during the period of S33. In S34, the end of distribution of the storage type content is notified. The automobile 13 equipped with the ITS vehicle-mounted device 17 leaves the communication area with the roadside device 11 with the end of distribution.

  FIG. 9 is a data explanatory diagram of uplink information sent from the ITS vehicle-mounted device 17 to the roadside device 15. Uplink information is sent in multiple tags. The tag 1 includes a service provider code, a destination (latitude and longitude), a waypoint (latitude and longitude) 1 to 5, a cumulative travel distance, a preference genre data version, preference genre data, and member information 1 to 8. The tag 2 includes a service provider code and past stopover locations (latitude and longitude) 1 to 41. The tag 3 includes a service provider code and past stopover places (latitude and longitude) 42 to 82.

  The tag 4 includes a service provider code and reception / reproduction history (reception information code and reproduction identification flag) 1 to 123. The tag 5 includes a service provider code and reception / reproduction history (reception information code and reproduction identification flag) 124 to 246.

  FIG. 10 is an explanatory diagram showing an example of preference data with ID = 80 as a table. The preference data includes a preference data number, preference data display text, preference data display nest, preference data target identifier, preference data default value, and phonogram string. There are a total of 128 preference data numbers ranging from 0 to 127, and the service provider can freely set items for each data number. Of the 128 items, a maximum of 96 items are notified as uplink information from the ITS in-vehicle device 17 to the roadside device 15 in S30 (FIG. 4).

  Of the 96 items notified as uplink information, 12 items are used for public information provision service purposes and are information items distributed by default when providing information in DSRC communication. In the preference data table of FIG. 10, the display nest means a hierarchy of each item (corresponding to the data number of FIG. 10), and a larger numerical value means a lower hierarchy. The target identifier means that an item whose value is “0” is not a check target on the preference data check screen (FIG. 11 described later) in the navigation unit 19, and is “1”. This means that the item is a check target on the check screen. The default value means that an item with “0” is displayed on the initial check screen without checking, and an item with “1” is displayed on the initial check screen. It means to display with check.

  FIG. 11 is an example of a check screen that the ITS vehicle-mounted device 17 that has received the preference data from the roadside device 15 displays on the display unit of the navigation unit 19. The user can scroll the screen up and down by dragging the scroll bar 23. In FIG. 11, when the user clicks the on button, the check is added, and when the user clicks the off button, the check is removed. In each item, it means that the user has selected the one in which “on” and “off” are italicized.

  FIG. 11 is a check screen that the ITS vehicle-mounted device 17 that has received the preference data from the roadside device 15 first displays on the display unit of the navigation unit 19, and the default value of the received preference data is “0” (example: The item that is bargain information and coupon information in FIG. 10 is off (no check), and the default value of the received preference data is “1” (eg, parking information in FIG. 10). On (checked).

  FIG. 12 shows the transition relationship for a plurality of contents G1 to G6 distributed from the roadside device 15 to the ITS vehicle-mounted device 17. In the multi-content format, each content can designate a maximum of eight transition destination contents by using the next reproduction information code of ID = 30 (FIG. 5). In each arrow of FIG. 12, the original content is the transition source, and the destination content is the transition destination. The transition destination content for the content G1 is G2 or G3. The transition destination content for the content G2 is G4 or G5. The transition destination content for the content G3 is G5 or G6.

  FIG. 13 is a screen example corresponding to the content G1 of FIG. In this screen, the user is instructed to select one of the two items “1. Search from the department” and “2. Search from the street name” for the hospital near the XX city hall. In the area, buttons “1” and “2” are displayed. The display is a touch screen. When the user touches the button “1”, the content G2 is reproduced, and when the user touches the button “2”, the content G3 is reproduced.

  FIG. 14 is a screen example corresponding to the content G2 of FIG. On this screen, the user is guided to select one of “1. Ophthalmology” and “2. Pediatrics”, and buttons “1” and “2” are displayed on the lower side of the screen. ing. When the user touches the button “1”, the content G4 is reproduced, and when the user touches the button “2”, the content G5 is reproduced.

  Screens corresponding to the other contents G3 to G6 are displayed in the same manner. In this way, on the playback screen of each content, a button for switching to the transition destination content is displayed for the content, and the user selects and touches the button on the playback screen of each content, so that the desired content screen is displayed. You can go on. The transition destination content associated with each button is based on the next reproduction information code of ID = 30 described above.

  FIG. 15 is a flowchart of the reproduction instruction routine. The reproduction instruction routine is activated upon receiving a content reproduction instruction. The reproduction instruction in the ITS on-board device 17 is based on a transition such as a reproduction information code of ID = 30 from another information group in the tree structure (for example, FIG. 12) or a function such as a favorite list of the ITS on-vehicle device 17. , Request (require) playback / display of display character data, display image data, utterance phonetic character string, compressed voice data, video data, etc. in the target point information of ID = 10 of the information group Shall point to.

  In addition, in the information group, the content specifically includes display character data, display image data, phonogram character string for target point utterance, compressed voice data, video in target point information of ID = 10 (FIG. 4). The data, the image, the phonetic character string, and the compressed voice in the information provision point (FIG. 5) with ID = 20 are indicated.

  In S101, the current date and time and the contents of the expiration date of ID = 04 of the instructed information group are compared, and it is determined whether or not it is before the expiration date starts. Then, the reproduction process routine before the expiration date is executed, and if the expiration date has started, the process proceeds to S102.

  In S102, it is determined whether or not it is after the expiration date, and if it is after the expiration date, the process proceeds to S103 to execute a reproduction processing routine after the expiration date, and if it is before the expiration date, the process proceeds to S105. move on.

  In S105, the content included in the target point information of ID = 10 of the information group instructed to be reproduced is reproduced.

  FIG. 16 is a flowchart of the pre-deadline processing routine (S104 in FIG. 15). In each flowchart after FIG. 16, the pre-expiration prohibition flag, the post-expiration prohibition flag, the pre-expiration substitute screen permission flag, and the post-expiration substitute screen permission flag are referred to as appropriate. The storage location of these flags in the information group will be described first.

  When the pre-expiration prohibition flag, the post-expiration prohibition flag, the pre-expiration substitute screen permission flag, and the post-expiration substitute screen permission flag are uniformly applied to all “contents” in the information group, ID = 03 Stored in either the reproduction condition or the expiration date of ID = 04.

  It is also possible to set a pre-expiration reproduction prohibition flag or the like for each content included in a plurality of information groups. For example, it is assumed that an information group for the purpose of advertising a new movie has video data and compressed audio data in the target point information with ID = 10, and the pre-expiration date prohibition flag is given only to the video data. In this case, it is possible to listen to only the audio before the set expiration date starts, but it is not possible to see the video, and after the expiration date starts, it is possible to view the video and audio together, Promotion. Also, a reproduction prohibition flag before expiration date and a reproduction prohibition flag after expiration date can be assigned to each content (image, video, audio, etc.) in the information provision point of ID = 20.

  17 to 19 are classification tables in which ID = 03, 10, and 20 are assigned a pre-expiration prohibition flag or the like. The pre-valid regeneration prohibition flag or the like is assigned to a bit that is unused (empty) in the current specifications for town car life navigation. In FIG. 17 to FIG. 19, in order to clarify the entry positions of these flags, items and expression formats for these flags are shown in italics.

  Note that it is only possible to display the display screen data and video data in the target point information of ID = 10 because it is necessary to display an alternative screen. 4 bits of a prohibition flag, a pre-validation substitute screen permission flag and a post-validation substitute screen permission flag are added, and 2 bits of a pre-validation reproduction prohibition flag and a post-validation reproduction prohibition flag are added to other contents.

  Returning to FIG. 16, in S111, it is determined whether or not the pre-expiration reproduction prohibition flag associated with the content instructed to be reproduced is set. If not, the process proceeds to S112, and this information is After displaying a message indicating that it is before the effective period or speaking, the content included in the target point information of ID = 10 is reproduced in S113.

  FIG. 20 shows a playback screen with a message displayed based on the processing of S112 and S113. In this screen example, the message is displayed superimposed on the reproduced image. In such a display, the reproduced image in the portion under the message is not visible, so the message window and other buttons (buttons are not shown in FIG. 20) are touched or they are displayed. You can program the message so that the message disappears when you touch any other part. It can also be programmed to move a message by touching and dragging the window.

  When it is determined in S111 that the flag is set, the process proceeds to S114, and a message indicating that this information cannot be displayed (reproduced) before the valid period is displayed or uttered. After displaying the message for a certain period of time, you can return to the screen instructed to play (the previous information group screen or the favorites list screen) or display a return button in addition to the message. Then, it may be possible to return to the screen instructing the reproduction. FIG. 21 shows an example of a screen displayed in S114.

  FIG. 22 is a flowchart of the post-limit processing routine (S103 in FIG. 15). In S121, it is determined whether or not the post-validation regeneration prohibition flag is set. If it is not set, the process proceeds to S122, where “this information has expired” or “displayed contents”. Is displayed as a message indicating that “there is a possibility of old information” or the like, the content included in the target point information of ID = 10 is reproduced in S123. FIG. 23 shows an example of a playback screen with a message based on the processing of S121 and S122. In this display example, the reproduced image is reduced and a message is displayed in the margin.

  If it is determined in S121 that the flag is set, a message (FIG. 24) or utterance saying "This information cannot be displayed because it has expired" is given. . After the message is displayed for a certain period of time, the screen returns to the screen that has instructed playback (the screen of the previous information group or the screen of the favorites list). Alternatively, a return button may be displayed in addition to the message, and when this button is touched, the screen instructing playback may be returned.

  The information distributed from the roadside machine 11 has a tree structure in which a plurality of information groups are linked by transition information of ID = 30 of each information group (example: FIG. 12). When the ITS vehicle-mounted device 17 reproduces the content in the target point information with the ID = 10 of the information group, it simultaneously generates a button based on the transition information, and transitions to another information group when the user touches the button. (Example: FIG. 13 and FIG. 14).

  By the way, if the reproduction of the information group is prohibited based on the above-described reproduction prohibition flag before the expiration date and the reproduction prohibition flag after the expiration date, there is a possibility that other information groups that are transitioned by the transition information of the information group cannot be reproduced at the same time. is there. However, it can be played back if it has a tree structure that allows transition from another information group or is registered in the favorites list. However, if this is not the case, the way to reach the information group will be cut off, and playback will not be possible.

  Therefore, it is desirable to generate a button based on the transition information so that transition to another information group can be performed even if the pre-expiration prohibition flag and the post-expiration prohibition flag are set. FIG. 25 shows an example of a screen when an information group whose reproduction is not prohibited is reproduced. The numeric buttons 30 on the screen of FIG. 25 are generated by the ITS vehicle-mounted device 17 by OSD (on-screen display) or the like, but the heading 31 of the information group to which the transition is made by touching each numeric button 30 is displayed by the OSD. It is not an image but a background image, that is, a part of a still image in the target point information with ID = 10. Therefore, if playback is prohibited because it is not valid, the still image will not be displayed and only the button will be displayed. What content will the user transition to when the button is touched? It becomes impossible to know.

  In response to this, when reproduction is prohibited because it is out of the validity period, the ID of the information group specified by the next reproduction information code described in the transition information of ID = 30 as an alternative to the still image The item of the transition destination is displayed using the information display text in the information providing company code of = 02. FIG. 26 shows an example of this alternative screen. In this screen, the numeric buttons 30 are generated by the ITS vehicle-mounted device 17 as in the screen of FIG. In FIG. 26, the transition heading 32 associated with each numeric button 30 is also generated by the ITS in-vehicle device 17. The transition destination heading 32 and the numeric button 30 may be integrated. That is, each heading 32 itself in FIG. 26 is used as a button for transitioning to the transition destination associated with the touch, and the numeric buttons 30 are not displayed.

  In addition, a substitute screen permission flag before expiration date and a substitute screen permission flag after expiration date that specify whether or not such a substitute screen may be displayed are applied to all contents in the information group and set. In this case, it is set within the reproduction condition of ID = 03 or within the expiration date of ID = 04 (indicated by the italics in FIG. 17), and when applied and set for each content in the information group, ID = 10 Are set in the target point information and the information providing point of ID = 20 (slanted characters in FIGS. 18 and 19).

  FIG. 27 is a flowchart of the pre-deadline reproduction processing routine with an alternative screen display. In the pre-deadline reproduction processing routine of FIG. 27, the same steps as the steps of the pre-deadline processing routine of FIG. 16 are the same as the steps of the pre-deadline processing routine of FIG. Will be omitted and the differences will be described. In the pre-deadline reproduction processing routine of FIG. 27, S134, S136, and S137 are added to the pre-deadline processing routine of FIG.

  S134 is executed when the determination of S111 is positive, and checks whether or not the next reproduction information code of the transition information with ID = 30 exists in the information group. If it exists, the process proceeds to S136, and if it does not exist Advances to S114. In S136, it is determined whether or not the substitute screen permission flag before the expiration date is set. If the determination is positive, the substitute screen display routine of S137 is executed, and if not, the process proceeds to S114. Step S137 will be described later with reference to FIG.

  FIG. 28 is a flowchart of a post-limit reproduction process routine with an alternative screen display. In the post-expiration reproduction processing routine of FIG. 28, the same steps as the steps of the post-expiration processing routine of FIG. 22 are the same as the steps of the post-expiration processing routine of FIG. Will be omitted and the differences will be described. In the post-limit reproduction processing routine of FIG. 28, S137, S144, and S145 are added to the post-limit processing routine of FIG. S137 in FIG. 28 is the same as S137 in FIG. 27 and will be described later with reference to FIG.

  S144 is performed when the determination of S121 is positive, and it is checked whether or not the next reproduction information code of the transition information with ID = 30 exists in the information group. If it exists, the process proceeds to S146, and if it does not exist Advances to S124. In S146, it is determined whether or not the alternative screen permission flag after the expiration date is set. If the determination is positive, the alternative screen display routine of S137 is executed. If the determination is negative, the process proceeds to S124.

  FIG. 29 is a flowchart of an alternative screen display routine. As described above, the alternative screen display routine corresponds to S137 in the routines of FIGS.

  In S151, the variable n = 1. In S152, it is checked whether or not there is a next reproduction information code n in the transition information with ID = 30. If there is no next reproduction information code n, the process proceeds to S156, and if present, the process proceeds to S153. In S153, the information display text in the information providing company information of ID = 02 of the information group designated by the next reproduction information code n is read. In S154, the read text and the variable n are displayed on the screen (example: heading 32 in FIG. 26). In S155, a number n button is displayed (example: number button 30 in FIG. 26).

  In S156, it is determined whether or not n = 8. If n = 8, the routine is terminated. If n ≠ 8, the process proceeds to S157, and n is incremented by 1. After S157, the process returns to S152.

  In S156, the reason why n is compared with 8 is that the maximum number of next reproduction information codes is 8, as indicated by the transition information of ID = 30 in FIG. 5, and the transition information of ID = 30. When the maximum number of the next reproduction information codes described in the above is N instead of 8, it is determined whether or not n = N in S156.

  Next, the expired content deletion process will be described. For the deletion process, a post-expiration deletion flag is set in the information group. The post-expiration date deletion flag is set, for example, to either a reproduction condition with ID = 03 or an expiration date with ID = 04. The information group in which this flag is set is automatically deleted from the storage device (hard disk or the like) of the ITS on-vehicle device 17 when the expiration date has passed. By using this flag, when content with a limited usage right period is distributed, the content cannot be viewed after the expiration date, and it is deleted from the storage device to prevent unauthorized use. Will be able to.

  The deletion process is performed in the background because it is performed promptly when the expiration date has expired. The deletion process includes an expiration date deletion process 1 in the former stage of FIG. 30 and an expiration date deletion process 2 in the latter stage of FIG. In the first-stage expiry date deletion process 1, the predetermined information group is registered in the deletion table together with the deletion of contents. In the subsequent expiration date deletion process 2, the corresponding content is deleted based on the deletion table.

  30 is executed for the first time when the ITS vehicle-mounted device 17 is activated (when the power is turned on), and then T (the same as T in S206 described later) is executed. 1) Conducted every hour. In S201, the variable m is initialized to 1. In S202, it is determined whether the post-expiration date deletion flag is set in the stored mth information group. If the determination is positive, the process proceeds to S203, and if not, the process proceeds to S206. move on. In S203, it is determined whether or not the expiration date of the information group has ended. If the determination is positive, the process proceeds to S204, and if not, the process proceeds to S206.

  In S204, it is determined whether or not the content of the information group determined to have expired in S203 has been deleted. If the determination is positive, the process proceeds to S208, and if not, the process proceeds to S205. Here, the content refers to display character data, display image data, phonogram character string for target point utterance, compressed voice data and video data, and information of ID = 20 in the target point information of ID = 10. Refers to the image, phonetic character string, and compressed speech within the point.

  If the determination in S204 is no, the process proceeds to S205 to delete the content. At the same time, the content of ID = 00 is also changed. Thereby, the determination of S204 can be completed only by confirming the content of ID = 00. After S205, the process proceeds to S208.

  In S206, it is determined whether or not the expiration date of the m-th information group is within a predetermined time T (eg, 24 hours) from the current time. If the determination is positive, the process proceeds to S207. If not, the process proceeds to S208. In S207, the mth information group is added to the deletion table, and then the process proceeds to S208.

  FIG. 31 is an example of the deletion table. For the information group, the list number, the information code of the information group, the end time as the expiration date, and the deletion flag are registered items. The initial value of the deletion flag is cleared. If the time T is within 24 hours, it is sufficient to register only the hour, minute and second with the date omitted.

  Returning to FIG. 30, in S208, it is determined whether or not the current m-th information group is the last stored information group. If the determination is positive, the routine of FIG. 30 is terminated. If there is, the process proceeds to S209, m is incremented by 1, and the process returns to S202.

  The expiry date deletion process 2 in FIG. 32 is performed at regular time intervals (eg, every 1 second) by a timer interrupt or the like. In S221, the variable i is initialized with 1. In S222, it is determined whether or not the i-th deletion flag of the deletion table is set. If the determination is negative, the process proceeds to S223, and if it is positive, the process proceeds to S226.

  In S223, it is determined whether the i-th expiration date described in the deletion table has passed. If the determination is positive, the process proceeds to S224, and if not, the process proceeds to S226. In S224, the contents of the information group specified by the i-th information code in the deletion table are deleted. In S225, the i-th deletion flag of the deletion table is set, and then the process proceeds to S226. The fact that the deletion flag is set means that the corresponding content has been deleted.

  In S226, it is determined whether i is the last one in the deletion table. If the determination is positive, the deletion processing routine 2 is terminated. If not, the process proceeds to S227 where i is set to 1. After incrementing, the process returns to S222.

  In the expiry date deletion process 1 in FIG. 30 described above, the content to be deleted is registered in the deletion table in S207 when the ITS on-vehicle device 17 is started and thereafter at T time intervals. The registration of content can also be performed when the ITS vehicle-mounted device 17 receives an information group from the roadside device 11. FIG. 33 is a flowchart of a routine for registering the content to be deleted in the deletion table when the ITS vehicle-mounted device 17 receives an information group from the roadside device 11 (strictly, the reception is completed).

  In the routine of FIG. 33, the same step as the step of the expiration date deletion process 1 of FIG. 30 is assigned the same number. In this routine, S203 to S206 of the expiration date deletion process 1 in FIG. 30 are omitted. In S202, it is determined whether or not a deletion flag after expiration date is set in the mth information group, and the determination is positive. If there is, immediately proceed to S207 to register the m-th information group in the deletion table.

  The expiration deletion processing routine at the latter stage of FIG. 32 is also used as an execution routine for actually deleting the deletion list created by the routine of FIG. In S207, year / month / day / hour / minute / second must be recorded as the expiration date registered in the deletion table without omitting the year / month / day. This is because, for some contents registered in the deletion table, the date and time of deletion in the expiration date deletion processing routine at the latter stage of FIG. 32 may be 24 hours or more after the reception date and time of the information group. It is.

  FIG. 34 is a flowchart of a routine for processing content reproduction after the expiration date using the after-expiration prohibition flag and the after expiration deletion flag. 34, the same step as the step of the post-expiration reproduction processing routine of FIG. 28 is assigned the same number, description thereof is omitted, and the difference from the post-expiration reproduction processing routine of FIG. Is described.

  In the after-expiration reproduction processing routine of FIG. 34, S267 and S269 are added to the after-expiration reproduction processing routine of FIG. S267 is executed when it is determined in S144 that the next reproduction information code does not exist in the reproduction instruction target information group, and it is determined whether or not the reproduction prohibition flag after the expiration date is set. If there is, the process proceeds to S124, and if not, the process proceeds to S269. In S269, a message or utterance saying "This information has been deleted because its validity period has passed" is displayed.

  In the specification of Town Car Life Navi, when the area is entered, the member information is uplinked from the vehicle-mounted device to the roadside device (server), so the server uses the above-mentioned “pre-expiration prohibition flag”, “ It is also possible to change the values of the “reproduction prohibition flag after expiration date” and the “deletion flag after expiration date”. For example, when there are a paying member and a free member, the “pre-expiration reproduction prohibition flag” of the information group that announces the bargain is set and transmitted only to the free member. As a result, paid members can see the notice before the validity period of the information group, but free members cannot see the notice until the validity period has expired. Alternatively, when distributing music content or the like, only a free member sets the “deletion after expiration date flag” and distributes it. As a result, paid members can enjoy the distributed content at any time, but free members can only view the content for a predetermined period.

  FIG. 35 is a functional block diagram of the center device 300. A specific example of the center device 300 is the server 12. The center device 300 includes control information creation means 303 and distribution means 304. The center apparatus 300 may further include a receiving unit 301 and a member status detecting unit 302.

  The control information creation unit 303 creates control information for controlling processing of the content in the on-vehicle device when the content to be distributed to the on-vehicle device is outside the expiration date in the on-vehicle device. The distribution unit 304 wirelessly distributes the content information including the content, the expiration date information, and the control information via the roadside device 307.

  A specific example of content information is an information group (FIG. 2). Specific examples of the control information are the pre-expiration regeneration prohibition flag, the post-expiration regeneration prohibition flag, the post-expiration deletion flag, and the like described in FIG. The vehicle-mounted device performs processing based on the control information of the content in processing of the content from the center device 300. The processing of the content in the in-vehicle device when it is outside the expiration date in the in-vehicle device is, for example, whether or not the content can be reproduced and deleted from the storage medium when the expiration date is out of date. Outside the expiration date, only one or both before and after the expiration date shall be included.

  In this way, the center apparatus 300 can direct the content processing related to the content expiration date in the vehicle-mounted device to the predetermined device. .

  Preferably, the receiving unit 301 wirelessly receives the user ID from the vehicle-mounted device via the roadside device 307, and the member status detecting unit 302 detects the member status associated with the user ID. On the other hand, the control information creation unit 303 creates control information based on the member status.

  By creating the control information based on the member status, the processing in the in-vehicle device for the distribution content can be directed differently for, for example, a free member and a paid member. The control information may be created for each member instead of for each member status.

  FIG. 36 is a functional block diagram of the vehicle-mounted device 310. A specific example of the vehicle-mounted device 310 is the ITS vehicle-mounted device 17. The vehicle-mounted device 310 includes a reception unit 311, an information extraction unit 312, a current date / time detection unit 313, and a reproduction control unit 314. The vehicle-mounted device 310 may additionally include an alternative screen generation unit 317.

  The receiving unit 311 wirelessly receives content information including content from the roadside device 307. The information extraction unit 312 extracts information on the expiration date of the content and whether the content can be reproduced outside the expiration date from the content information of the content instructed to be reproduced.

  The current date and time detection means 313 detects the current date and time. The reproduction control unit 314 prevents the content from being reproduced when the current detection date / time is out of the valid period and the reproduction out of the valid period is rejected for the content instructed to be reproduced.

  There may be a plurality of contents as well as one content information. The reproduction instruction is typically given by the user, but may be automatically generated when a predetermined point is reached or a predetermined time is reached.

  In this way, in the vehicle-mounted device 310, content that has not expired is not played despite the playback instruction, so that the content can be played back only for an appropriate period.

  Preferably, the information extraction unit 312 extracts the information of the transition destination content from the content information of the content instructed to reproduce the content instructed to reproduce. In addition, when there is a transition destination content for the reproduction instruction content, the alternative screen generation unit 317 generates an alternative screen with an operation button for proceeding to the transition destination content. On the other hand, the reproduction control unit 314 instructs the reproduction instruction to display an alternative screen with an operation button when the current detection date and time is outside the expiration date and the reproduction outside the expiration date is rejected. Displayed instead of the content playback screen.

  Specific examples of displaying an alternative screen with a button are S136 normal → S137 and S136 NO → S114 in the alternative screen display with deadline reproduction processing routine of FIG. 27, and FIG. → S137 and S146 NO → S124.

  It is convenient for the user to know the approximate destination content to be played back by operating the operation button. The vehicle-mounted device 310 can have a configuration that copes with this. That is, the information extraction unit 312 extracts the text related to the content of the transition destination content from the content information of the transition destination content for the content instructed to be played. The substitute screen generation unit 317 displays text related to the content of the transition destination content in association with the display of the operation button on the substitute screen with the operation button.

  A specific example of the text relating to the content of the transition destination content and extracted from the content information of the transition destination content is, for example, the text of the provider company. This specific screen is the one shown in FIG. 26, and the user can grasp the outline of the content to be transitioned by looking at the text of the heading 32 and touching the numeric button 30.

  FIG. 37 is a functional block diagram of the vehicle-mounted device 330. A specific example of the vehicle-mounted device 330 is the ITS vehicle-mounted device 17. The in-vehicle device 330 includes a receiving unit 331, a storage unit 332, an information extracting unit 333, an expiration date determining unit 334, and a content deleting unit 335. The on-vehicle device 330 can additionally include a list registration unit 339.

  The receiving unit 331 wirelessly receives content information including content from the roadside device 307. The storage unit 332 stores the received content information in the storage medium 337. The information extraction unit 333 extracts expiration date information from the content information for the stored content.

  The expiration date determining means 334 determines the first determination as to whether the stored content has expired based on the expiration date information. If the first determination is positive, the content deletion unit 335 deletes the determination target stored content from the storage medium 337.

  In this way, it is possible to dispose of useless content from the storage medium 337, avoid useless reproduction, or increase the remaining storage capacity of the storage medium 337.

  Preferably, the expiration date determining unit 334 determines a second determination as to whether or not the expiration date of the stored content is within a predetermined time with respect to the stored content when a predetermined event occurs, based on the expiration date information. If the second determination is positive, the list registration unit 339 registers the stored content to be determined in the deletion schedule list together with the expiration date. The content deletion unit 335 searches for the stored content that has expired in the deletion schedule list at regular time intervals, and deletes the corresponding stored content from the storage medium.

  The event is, for example, that a predetermined time has arrived, that a certain time has elapsed since the previous activation, that the power of the vehicle-mounted device center device 300 is turned on, or that content is received from the roadside device 307. Typically, the fixed time interval at which the content deletion unit 335 is activated and refers to the deletion schedule list is set larger than the event occurrence time interval.

  As described above, the reason for adopting the two-stage method of creating the deletion schedule list as the first stage and referring to the deletion schedule list as the second stage and deleting the contents is that all the contents increase as the number of contents increases. This is because it takes time to confirm the expiration date of the content. The deletion schedule list in the first stage is performed at a limited timing, for example, when the vehicle-mounted device 330 is activated or when content is received from the roadside machine 307, and the second stage is frequently performed, for example, at intervals of 1 second. To do. In this way, in the second stage, the number of 136 to be processed can be narrowed down, and the content can be deleted without delay as soon as it expires.

  Preferably, the content deletion unit 335 deletes only the stored content from the storage medium 337 and leaves other information included in the content information of the stored content in the storage medium 337. The other information is, for example, an identifier of content information (eg, information code of ID = 02 in the information group of FIG. 2) or an identifier of transition destination content information (eg: ID = 30 in the information group of FIG. 5) Information codes 1 to 8).

  FIG. 38 is a flowchart of the content information distribution method 350. The content information distribution method 350 corresponds to the center device 300 (FIG. 35). In S351, the control information for controlling the processing of the content in the in-vehicle device when the content to be distributed to the in-vehicle device is outside the expiration date in the on-vehicle device is created. In S <b> 352, content information including content, information on its expiration date, and control information is distributed wirelessly via the roadside device 307.

  The processes of S351 and S352 correspond to the functions of the control information creation unit 303 and the distribution unit 304 of the center apparatus 300 (FIG. 35), respectively. The specific modes described for the functions of the control information creation unit 303 and the distribution unit 304 can also be applied as specific modes of the processing of S351 and S352, respectively. In the content information distribution method 350, a step of executing processing corresponding to the functions of the receiving unit 301 and the member status detecting unit 302 of the center device 300 can be added. The steps corresponding to the receiving means 301 and the member status detecting means 302 are arranged in that order and inserted before S351.

  FIG. 39 is a flowchart of the content information processing method 360. The content information processing method 360 corresponds to the vehicle-mounted device 310 (FIG. 36). In S361, content information including content is received from the roadside device 307 wirelessly. In S362, it is determined whether or not there is a reproduction instruction for the content. If the determination is positive, the process proceeds to S363, and if not, the content information processing method 360 is terminated. In S363, for the content instructed to be reproduced, information about the validity period of the content and whether or not reproduction is possible outside the valid period is extracted from the content information.

  In S364, the current date and time are detected. In S365, it is determined whether or not the current detection date and time is out of the valid period and the reproduction out of the valid period is not permitted for the content instructed to be reproduced. If the determination is positive, the process proceeds to S366. The information processing method 360 ends. In S366, the reproduction instruction content is not reproduced.

  The processes of S361, S363, S364, and S366 correspond to the functions of the receiving unit 311, the information extracting unit 312, the current date and time detecting unit 313, and the reproduction control unit 314 of the vehicle-mounted device 310 (FIG. 36), respectively. The specific modes described for the functions of the reception unit 311, the information extraction unit 312, the current date and time detection unit 313, and the reproduction control unit 314 can also be applied as specific modes of the processing of S361, S363, S364, and S366, respectively. In the content information processing method 360, a step of executing a process corresponding to the function of the alternative screen generation unit 317 of the vehicle-mounted device 310 can be added. The step corresponding to the alternative screen generation means 317 is inserted immediately before or after S366.

  FIG. 40 is a flowchart of the content information processing method 370. The content information processing method 370 corresponds to the vehicle-mounted device 330 (FIG. 37). In S371, content information including the content is received from the roadside device 307 wirelessly. In S372, the received content information is stored in the storage medium 337.

  In S373, the expiration date information is extracted from the stored content information. In S374, a first determination as to whether or not the stored content has expired is made based on the expiration date information. If the determination is positive, the process proceeds to S375, and if not, the content information processing method 370 is terminated. . In S375, the stored content to be determined in S374 is deleted from the storage medium 337.

  The processes of S371, S372, S373, S374, and S375 correspond to the functions of the receiving unit 331, the storing unit 332, the information extracting unit 333, the expiration date determining unit 334, and the content deleting unit 335 of the vehicle-mounted device 330 (FIG. 37), respectively. The specific modes describing the functions of the reception unit 331, the storage unit 332, the information extraction unit 333, the expiration date determination unit 334, and the content deletion unit 335 are also specific modes of the processing of S371, S372, S373, S374, and S375. Each is applicable. In the content information processing method 370, a step of executing processing corresponding to the function of the list registration unit 339 of the in-vehicle device 330 can be added. The step corresponding to the list registration means 339 is inserted between S374 and S375.

   The program to which the present invention is applied causes a computer to function as each unit of the center device 300 or the vehicle-mounted device 310 or 330. Another program to which the present invention is applied causes a computer to execute the steps of the content information distribution method 350 or the content information processing method 360 or 370.

  This specification discloses various ranges and levels of the invention. The invention is not limited to the various technical scopes and specific levels of the apparatuses and methods described in the present specification, but within the scope of obviousness of those skilled in the art, the actions and effects independent of the apparatuses and methods. Extracting one or more elements to be played, one or more elements changed within a self-evident range, and combinations of one or more elements between devices and methods Including things.

It is the schematic of the road-vehicle DSRC system based on the data of a town car life navigation multi-content format. It is explanatory drawing of the data transmission aspect of a town car life navi multi-content format. It is a figure which shows whether each ID is essential or arbitrary about the structure of an information group. It is a 1st part of the classification table allocated to each ID used by downlink. It is a 2nd part of the classification table allocated to each ID used by a downlink. It is a 3rd part of the classification table allocated to each ID used by a downlink. It is a 4th part of the classification table allocated to each ID used by a downlink. It is a figure which shows the communication and process between each apparatus implemented by the transaction between a roadside apparatus and ITS onboard equipment. It is data explanatory drawing of the uplink information sent to a roadside apparatus from ITS onboard equipment. It is explanatory drawing which expressed table example of preference data.

It is an example of the screen of the check which the ITS onboard equipment which received preference data from the roadside apparatus displays on the display of a navigation part. It is a figure which shows the transition relationship about the some content G1-G6 delivered to an ITS onboard equipment from a roadside apparatus. It is an example of a screen corresponding to the content G1 of FIG. It is an example of a screen corresponding to the content G2 of FIG. It is a flowchart of a reproduction | regeneration instruction | indication routine. It is a flowchart of a pre-deadline processing routine. It is a classification table in which a reproduction prohibition flag or the like before expiration date is assigned to information group ID = 3. It is a classification table in which a reproduction prohibition flag before expiration date is assigned to ID = 10 of the information group. It is a classification table in which a reproduction prohibition flag or the like before expiration date is assigned to ID = 20 of the information group. 17 is a reproduction screen with a message displayed when the pre-expiration date reproduction prohibition flag flag is not set in the routine of FIG.

FIG. 17 is a message screen displayed when the pre-expiration reproduction prohibition flag flag is set in the routine of FIG. 16. It is a flowchart of an expiration date processing routine. FIG. 23 is a reproduction screen with a message displayed when the after-expiration date reproduction prohibition flag flag is not set in the routine of FIG. 22. FIG. 23 is a reproduction screen with a message displayed when a reproduction prohibition flag flag after expiration date is set in the routine of FIG. 22. This is a screen when an information group for which playback is not prohibited is played back. This is a substitute screen for the playback screen of content that is prohibited from playback. It is a flowchart of a pre-deadline reproduction processing routine with an alternative screen display. It is a flowchart of a reproduction process routine after an expiration date with an alternative screen display. It is a flowchart of an alternative screen display routine. It is a flowchart of the expiration date deletion processing routine of the former stage.

It is a figure which shows the deletion table used for registration in the routine of FIG. 10 is a flowchart of a later-stage expiration deletion processing routine. It is a flowchart of a routine for registering a content to be deleted in a deletion table as soon as reception of an information group is completed. FIG. 11 is a flowchart of a routine for processing content reproduction after the expiration date by using a deletion prohibition flag after the expiration date and a deletion flag after the expiration date. FIG. It is a functional block diagram of a center apparatus. It is a functional block diagram of an onboard equipment. It is a functional block diagram of another onboard equipment. It is a flowchart of a content information delivery method. It is a flowchart of a content information processing method. It is a flowchart of another content information processing method.

Explanation of symbols

300: Center device, 301: Receiving means, 302: Member status detecting means, 303: Control information creating means, 304: Distribution means, 307: Roadside device, 310: On-vehicle equipment, 311: Receiving means, 312: Information extracting means, 313: Current date and time detection means, 314: Playback control means, 317: Alternative screen generation means, 330: On-vehicle device, 331: Reception means, 332: Storage means, 333: Information extraction means, 334: Expiration date determination means, 335: Content deletion means, 337: storage medium, 339: list registration means, 350: content information distribution method, 360: content information processing method, 370: content information processing method.

Claims (7)

Receiving means for receiving the content information including the content wirelessly from the roadside device,
For the content of the playback instruction, the information on the expiration date of the content and information on whether or not playback is possible is extracted from the content information, and the information of the transition destination content is extracted for the content of the playback instruction Information extracting means for extracting from the content information of
An alternative screen generating means for generating an alternative screen with an operation button for proceeding to the transition destination content when the transition destination content exists for the reproduction instruction content;
Current date and time detection means for detecting the current date and time;
If the detected current date and time is outside the expiration date and playback outside the expiration date is not allowed for the playback instruction content, the content is controlled not to be played back , and the alternative screen with the operation button a reproduction control means for displaying in place of the reproduction screen of the content of the reproduction instruction and,
A vehicle-mounted device comprising: The information extraction means extracts text related to the content of the transition destination content from the content information of the transition destination content for the content of the reproduction instruction ,
Wherein the alternative screen generating means, the vehicle-mounted device according to claim 1, wherein the alternate screen with the operation buttons in association with the display of the operation button for displaying the text about the content of the transition destination content, and wherein the. A storage unit, an expiration date determination unit, and a content deletion unit;
It said storage means, save your content information received by the receiving means,
The information extracting means extracts information on the expiration date of the content from the stored content information ,
The expiration judging means, a first determination of whether the storage contents are expired and determined based on the information of the expiration date,
If the first determination is positive, the content deletion means deletes the determination target storage content from the storage means .
The on- vehicle device according to claim 1 or 2, wherein A list registration means;
The expiration judging means, the expiry to the stored content with the predetermined event occurs is determined have based the second determination of whether it is within a predetermined time to the information of the expiration date,
If the second determination is positive, the list registration unit registers the stored content to be determined together with its expiration date in the deletion schedule list ,
The content deleting unit deletes the corresponding stored content searching stored content that expired in the deletion object list at certain time intervals from the storage unit,
The in-vehicle device according to claim 3 . The content deleting unit deletes only storage content from said storage means, the vehicle-mounted device according to claim 3 or 4, wherein other information included in the content information of the storage content is characterized by leaving in the storage means . A receiving step of receiving wirelessly from the roadside device content information including the content,
For the content of the playback instruction, the information on the expiration date of the content and information on whether or not playback is possible is extracted from the content information, and the information of the transition destination content is extracted for the content of the playback instruction an information extracting step of extracting from the content information,
An alternative screen generation step for generating an alternative screen with an operation button to advance to the transition destination content when the transition destination content exists for the content of the reproduction instruction;
A current date and time detection step for detecting the current date and time;
If the detected current date and time is outside the expiration date and playback outside the expiration date is not allowed for the playback instruction content, the content is controlled not to be played back , and the alternative screen with the operation button a reproduction control step of displaying in place of the reproduction screen of the content of the reproduction instruction and,
Content information processing method characterized in that it comprises a. A reception step of wirelessly receiving content information including content from a roadside device;
Extract information expiration date and the expiration date out playback permission of the content from the content information to the playback instruction content and its transition destination content information regeneration instruction to the content of the reproduction instruction An information extraction step of extracting from the content information of the content;
An alternative screen generation step for generating an alternative screen with an operation button to advance to the transition destination content when the transition destination content exists for the content of the reproduction instruction;
A current date and time detection step for detecting the current date and time;
If the detected current date and time is outside the expiration date and playback outside the expiration date is not allowed for the playback instruction content, the content is controlled not to be played back, and the alternative screen with the operation button And a playback control step for displaying the playback instruction content instead of the playback screen for the content of the playback instruction;
A program that causes a computer to execute .

Images