JP2009199371A - Roadside device, control method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To set a proper default value for a version change of a taste data table in a roadside device 15 corresponding to communication between road vehicles in a town car life multi-content data format, thereby reducing user's input trouble. <P>SOLUTION: A roadside device 15 is provided with a corresponding table in the case where there is an item of a new version of a taste data table to take over from user taste information in an item of an old version of the taste data table. In the corresponding table, item numbers "52", "53", "62" and "63" in the old version of the taste table, for example, are made to correspond to item numbers "52", "53", "62" and "63" in the new version of the taste table. An ITS vehicle-mounted instrument 17 sets user taste data in the item numbers of the old version corresponding to the item numbers of the new version to default values of the items in the new version for a transmitting-destination user of the taste data table of the new version and transmits the default data to an ITS vehicle-mounted instrument 17 of the transmitting-destination user. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a roadside device, a control method, and a program for transmitting and receiving information related to a preference data table using road-to-vehicle communication such as DSRC (Dedicated Short Range Communication).

  Patent Literature 1 discloses a road-vehicle communication system using DSRC (FIG. 1 of Patent Literature 1). In the road-to-vehicle communication system, the vehicle-mounted device that has entered the communication area of the roadside device receives advertisement information from the roadside device by radio waves and displays it on the display of the navigation unit (see Patent Document 1). Paragraph 0024). In the vehicle-mounted device, destination setting, HP connection, and dialing are automatically performed based on position information, URL, and telephone number included in the advertisement information (S12 in FIG. 4 of Patent Document 1). S14, S16).

  In Patent Document 2, the in-vehicle information terminal device receives the advertisement information from the information center and the area information and time zone information associated with the advertisement information by radio waves (FIG. 1 of Patent Document 2), and the advertisement information (patent It is disclosed to display FIG. 4 of Document 2 in the region related to the region information and the time zone related to the time zone information (S14 to S16 in FIG. 5 of Patent Document 2).

Patent Document 3 discloses an advertisement distribution system using DSRC (FIG. 1 of Patent Document 3). In the advertisement distribution system, preference information is notified from the vehicle-mounted device to the roadside device (paragraph 0017 of Patent Document 3), the roadside device transmits the advertisement information selected based on the preference information to the vehicle-mounted device, and the vehicle-mounted device transmits this information. Reproduction is performed (paragraphs 0028 and 0029 of Patent Document 3).
JP 2001-101578 A JP 2004-279509 A JP 2005-134707 A

  Data in the data format is basically distributed by a push type information distribution method by individual communication in 5.8 GHz band DSRC communication, and a preference data table is included in the downlink information, and the uplink information includes the preference data table. User preference information as a user's answer result with respect to the preference data table is included. The roadside device selects appropriate advertisement information for each user based on the user preference information, and transmits this to the vehicle-mounted device.

  The preference data table may be revised for the convenience of the service provider. In the preference data table, there are a total of 96 items for the user to input the presence / absence of his / her preference. If the user inputs all the items one by one, it takes a lot of trouble. Items in the new version of the preference data table include items that have not been revised. For those items, the user preference information in the old version of the preference data table can be set as default values to reduce the time and effort of the user. However, appropriate measures should be taken for setting default values for revised items.

  Patent Documents 1 to 3 do not suggest any technique for improving user input for the new version of the preference data table.

  An object of the present invention is to provide a roadside device, a control method, and a program capable of assigning appropriate default values to items in a new version of the preference data table.

  According to the present invention, the user preference information for the old version of the preference data table is stored in the storage device, and the items of the new version of the preference data table and the items of the old version of the preference data table having the user preference information that it inherits as a default value. The item correspondence relationship is registered. Then, when sending a default value to the item in the preference data table of the new version to the user, the user's preference information for the corresponding item in the old version preference data table is obtained based on the item correspondence, and the obtained preference information is updated to the new version. To the default value of the item in the preference data table.

The roadside device of the present invention transmits the information of the preference data table together with the version information to the in-vehicle device that has entered the wireless communication area, and uplink information including user preference information for the preference data table is transmitted from the on-vehicle device. It receives and has the following:
Storage means for storing user preference information for the previous version of the preference data table in a storage device;
Revision item search means for searching for items that have been revised from the old version among the items in the preference data table of the new version,
Based on the correspondence between the items in the old version of the preference data table and the items in the new version of the preference data table that inherit the user preference information for the item, the default values of the revised items in the new version of the preference data table are Default value setting means for setting user preference information; and transmission information transmission means for transmitting transmission information including information on a new version of the preference data table in which default values are set to the vehicle-mounted device.

The control method of the present invention transmits the information of the preference data table together with the version information to the onboard device that has entered the wireless communication area, and uplink information including user preference information for the preference data table is transmitted from the onboard device. It is for the roadside device to receive and comprises the following steps.
A storage step for storing user preference information for the previous version of the preference data table in a storage device;
Revision item search step for searching for items that have been revised from the old version among the items in the preference data table of the new version,
Based on the correspondence between the items in the old version of the preference data table and the items in the new version of the preference data table that inherit the user preference information for the item, the default values of the revised items in the new version of the preference data table are A default value setting step for setting user preference information, and a transmission information transmission step for transmitting transmission information including information on a new version of the preference data table in which default values are set to the vehicle-mounted device.

  The program of this invention makes a computer function as each means of the above-mentioned roadside apparatus of this invention.

  According to the present invention, it is possible to set an appropriate default value for the revised item of the new version of the preference data table based on the item correspondence relationship between the old and new preference data tables, and to reduce the labor of user input to the new version of the preference data table. Can do.

  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 transmits / receives data to / from the ITS vehicle-mounted device 17 mounted on the automobile 13 existing in an area having a length of several m to 30 m using radio waves of 5.8 GHz band. 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.

  FIG. 2 is an explanatory diagram of a data transmission mode. In the downlink, 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 classification table assigned to each ID used in the downlink. ID = 00 is a classification of configuration ID information (an area describing an ID constituting data). ID = 01 is the classification of the service provider, service service code (service code that can identify the service service provider), service service display text (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) is included.

  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 preference data categories (category codes indicating information categories to which the information corresponds).

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

  ID = 04 is a classification of the 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 (content provider business hours) 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 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). included.

  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 a total of 127 pieces of parking information, parking lot ID (ID that can identify the parking lot), detailed information (dynamic detailed information on parking lot), and special notes ( Special item of parking lot), and special item phonetic character string (special item phonetic character string for navigation utterance). 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. 4 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. Communication between the roadside device 11 and the DSRC unit 18 is performed by DSRC radio waves, and communication between the roadside device 11 and the server 12 and between the DSRC unit 18 and the navigation unit 19 is usually performed wirelessly or by wire.

  FIG. 5 is a schematic diagram of data outline 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.

  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 reads the uniquely numbered onboard unit ID of the DSRC unit 18 to determine whether the user of the ITS onboard unit 17 is a member or a non-member, and based on client information notified from the DSRC unit 18 after communication is established. Then, the hardware information of the ITS in-vehicle device 17 for properly reproducing the content by the ITS on-vehicle device 17 is acquired. 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 polls the DSRC unit 18 in S19 until the navigation unit 19 writes the uplink information in the DSRC unit 18. In S20, the navigation unit 19 writes the uplink information to the DSRC unit 18 when the user of the ITS vehicle-mounted device 17 is determined to be a member of the service provider, but does nothing if it is not a member.

  In S <b> 24, the server 12 sends default content (e.g., public service information) to the navigation unit 19 via the roadside device 11 and the DSRC unit 18. In S <b> 29, the server 12 performs memory access polling for the DSRC unit 18. On the other hand, in S30, if the user is a member, the DSRC unit 18 notifies the server 12 of uplink information.

  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. 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. 6 shows an example of a preference data table transmitted from the roadside device 15 to the ITS vehicle-mounted device 17. The preference data table is transmitted from the roadside apparatus 15 to the ITS vehicle-mounted device 17 in S18 of FIG. There are a total of 128 items in the preference data table, data numbers = 0 to 127, and there are display text, display nests, target identifiers, default values, and the like associated with each data number. Nest for display = 0 means the top layer, and the lower layer as the numerical value increases. The target identifier is a flag indicating whether or not each item of the data number is a target of preference registration by the user. As can be seen from FIG. It means that each user is a target of non-target registration for preference. The default values = 0 and 1 mean that the user has no preference and a preference for the item, respectively. In FIG. 6, the default values of “foreign” and “Japanese” with the target identifier = 1 are 0.

  FIG. 7 is a preference data table generated in the ITS vehicle-mounted device 17 based on the preference data table of FIG. As can be seen from the comparison with FIG. 6, the smaller the display nest value, the smaller the classification. Further, only the display text in which the target identifier = 1 is the target of preference registration by the user as preference data. In FIG. 6, the default value = 0 for both “Western” and “Japanese”, so in the first preference data, “Western” and “Japanese” are both 0 (the 0 is in the box in the actual screen example). It is displayed without checking.) On the other hand, in FIG. 7, the user checks that there is a preference for “foreign painting”, and preference data = 1. In FIG. 7, the user registers the presence / absence of preference only for the item at the lowest level, but if the target identifier = 1 is added to the item at the higher level, the user is classified into a large classification. The presence / absence of preference can also be registered for the middle category items.

  FIG. 8 is a diagram showing the preference data tables of new and old versions in comparison. The preference data table in (a) is an old version, and the preference data table in (b) is a new version. The old versions of “Dohoku”, “Donan”, “Western Europe” and “Eastern Europe” have been revised to “Wakkanai”, “Hakodate”, “Western Europe” and “Eastern Europe” respectively. In addition, the roadside device 15 stores, in the storage device, uplink information input by the user for each user and received at the previous area-in with respect to the old version preference data table. That is, although the check is made in all of “Dohoku”, “Donan”, “Western Europe” and “Eastern Europe” in the old version of FIG. 8A, the roadside device 15 stores this user preference information in the storage device. I remember it.

  When the service provider of the roadside device 15 changes the version of the preference data table to be distributed, both the new and old versions are created by itself, so the revised items in the new version of the preference data table are the same as those in the old version of the preference data table. It is possible to determine which item is the same or similar, and the user preference information of the old version can be transferred to the new version. Note that “similar” includes the case where the actual content is the same, but the half-width and full-width texts are different, and the kanji and hiragana are notated. Are completely identical.

  The roadside device 15 includes a correspondence table in a case where there is an item in the new version of the preference data table that inherits the user preference information of the item in the old version of the preference data table. The item correspondence relationship between the old and new version preference data tables in the correspondence table is such that the contents of the items in the old and new version preference data tables are the same or similar. The correspondence table is usually common to all users. Specifically, the item number of each revised item in the new version of the preference data table is associated with the item number of the item in the old version of the preference data table corresponding to the revised item. In the example of FIG. 8, the correspondence table includes item numbers “32”, “33”, “52”, and “53” of the preference data table of the old version, and item numbers “32”, “33”, and the item numbers of the preference data table of the new version. Corresponding to “52” and “53”. In this example, the numerical values of the corresponding numbers in the old and new preference data tables are the same, but they may be different, and are generally different.

  The roadside device 15 identifies the user of the ITS in-vehicle device 17 that is the transmission source based on the user ID included in the uplink information, searches the user preference information in the preference data table of the previous version of the user, and then Based on the correspondence table, the default value of each item number of the new version is set as the preference data of the corresponding item number in the preference data table of the old version. In the example of FIG. 8, the preference data for the items “Dohoku”, “Donan”, “Western Europe”, and “Eastern Europe” of the previous version are “1”, “1”, “1”, “1”, respectively. The roadside device 15 sets default values of “1”, “1”, “1”, and “1” for the new versions of “Wakkanai”, “Hakodate”, “Western Europe”, and “Eastern Europe”, respectively.

  FIG. 9 shows the information after the roadside device 15 arranges the stop point information of the automobile 13 that the roadside device 15 receives from the roadside device 15 of the automobile 13 included in the uplink information when the automobile 13 is area-in. In FIG. 9, “Auto Fronts”, “OK Hall”, and “Maruhachiya” are assumed to be car parts sales, rental video, and fishing gear trader names, respectively. The automobile 13 has stopped at the store of each supplier for the number of times shown in FIG. The roadside device 15 does not have to obtain information on the time of the last stop for each stop point.

  The roadside device 15 does not actually know the specific names of these stop points from the uplink information, but acquires the stop point information of the uplink information by, for example, latitude and longitude. Therefore, the roadside device 15 collates these latitudes and longitudes with the map data and knows the specific store name of the stop-by place.

  FIG. 10 shows the relationship between the stop point set by the roadside device 15 and the preference data. The roadside device 15 selects a contractor who has a track record of stopping a predetermined number of times, for example, three times or more, from the data of FIG. In the case of FIG. 9, “Auto Fronts” and “Maruhachiya” are selected. The roadside device 15 compares the latitude / longitude of the stop-off location obtained from the ITS vehicle-mounted device 17 with its own map data, and determines whether the point of the latitude / longitude is “Auto Fronts” or “Maruhachiya”. Then, the service provider of the roadside device 15 selects, as preference data, a phrase that is used as the display text of the preference data table of this new edition in relation to each selected trader.

  In the default value setting of the new version preference data table of the information source user in FIG. 9, the roadside device 15 sets the default value of the display text item that is the same as the selected phrase in FIG. 10 in the new version preference data table. 1 ", that is, there is preference. In this way, the information in the preference data table with default values is transmitted to the ITS in-vehicle device 17 of the information source user together with the version information. In the ITS in-vehicle device 17, the preference data table is displayed on the screen of the navigation unit 19, and the user does not need to input items that do not need to be changed, but checks only items that need to be changed. (With preference) or uncheck (no preference).

  FIG. 11 shows a display example of the old and new versions of the preference data table displayed on the ITS vehicle-mounted device 17 when the roadside device 15 transmits special information about the revised items in the new version of the preference data table to the ITS vehicle-mounted device 17. Yes. The preference data table of FIG. (A) is an old version, and the preference data table of (b) is a new version. As described in relation to FIG. 8, the roadside device 15 is equipped with the old version and new version item correspondence tables for the items in the new version of the preference data table that inherit the user preference information of the items in the old version of the preference data table as default values. ing. In the example of FIG. 11, in the correspondence table, the item number 52 of the new version “Sapporo / Muroran” is associated with the item number 52 of the old version “Middle” and the item numbers of the new version “UK” and “France”. 62 and 63 are assumed to be associated with the item number 62 of the old version of “Western Europe”.

  The roadside device 15 adds the value of the preference data of the corresponding item of the old version of the preference data table to the predetermined item of the new version of the preference data table based on the correspondence table, and determines which of the revised items in the new version of the preference data table is ITS in-vehicle. The information for allowing the user of the device 17 to know is transmitted together with the information of the taste data table of the new version. As a specific example, a specific text (example: *) is inserted into a specific place (example: top) in the display text (see FIG. 6) of the preference data table (example: * UK). The display text in the preference data table corresponds to 1: 1 for each item in the preference data table. In the example of FIG. 8, information indicating that the item is a revised item is added to the information in the preference data table in the item numbers 52, 62, and 63 of the new version of the preference data table, and is sent from the roadside device 15 to the ITS in-vehicle device 17.

  On the other hand, the ITS vehicle-mounted device 17 deletes the specific text and displays only the remaining text on the screen of the navigation unit 19 for the item in which the specific text exists at a specific location. The text of the item in which the specific text has been inserted is displayed on the screen of the navigation unit 19 in a colored or italic form. As a result, the user understands the revised items of the new version of the preference data table at a glance, focuses on the default values, and maintains or changes the preference data.

  FIG. 12 is a block diagram of the roadside device 50. The roadside device 50 transmits the information of the preference data table together with the version information to the onboard device that has entered the wireless communication area, and receives uplink information including user preference information for the preference data table from the onboard device. The roadside device 50 is not limited to the device that transmits and receives data between the vehicle-mounted device and the DSRC. The roadside apparatus 50 includes a storage unit 51, a revision item search unit 52, a default value setting unit 53, and a downlink information transmission unit 54.

  The storage unit 51 stores the user preference information for the old version preference data table in the storage device 58. The revised item search means 52 searches for items that have been revised from the old version among the items in the new version of the preference data table. The default value setting means 53 sets the default value of the revised item in the new version of the preference data table based on the correspondence between the item in the old version of the preference data table and the item in the new version of the preference data table that inherits the user preference information for the item. This is set in the preference information of the new version transmission destination user for the corresponding item in the preference data table. The downlink information transmission means 54 transmits downlink information including information on a new version of the preference data table in which default values are set to the vehicle-mounted device.

  Since the preference data table is normally created by the service provider, the correspondence between the items in the old version preference data table and the items in the new version preference data table that inherits the user preference information for the item has no problem with the service provider. Created. Correspondence between items in the old version of the preference data table and items in the new version of the preference data table that inherits user preference information for the item may be common to all users, but users such as sex, age, income group, etc. You can also prepare every detail. The roadside device 50 can grasp who is the transmission destination user of the new version of the preference data table from the user ID received prior to the user. The user can receive a preference data table set with default values in accordance with his / her preference information input in the old version from the roadside device 50, and the time and effort for input to the new version of the preference data table can be reduced.

  Preferably, the default value setting unit 53 sets a default value based on the uplink information for a revised item for which the default value could not be set due to the correspondence relationship. The default value is set based on, for example, stopover information, destination and waypoint information included in the uplink information. This specific example is the embodiment described with reference to FIGS.

  Typically, the downlink information transmission unit 54 transmits information indicating which is a revised item, in the downlink information together with the information of the new version of the preference data table. In the format of the town car life navigation multi-content, information indicating which is a revised item is inserted, for example, in the display text of the preference data table. The vehicle-mounted device can identify the information and display the text of the revision item in a manner that allows the user to easily know that the revision has been made, such as colored or italic.

  FIG. 13 is a flowchart of the roadside device control method 60. The roadside device control method 60 is applied to the roadside device 50 (FIG. 12). In S61, the user preference information for the preference data table of the old version is stored in the storage device 58. In S62, an item that has been revised from the previous version is searched for from the items in the new version of the preference data table. In S63, the default value of the revised item in the new version of the preference data table is set in the old version of the preference data table based on the correspondence between the item in the old version of the preference data table and the item of the new version of the preference data table that inherits the user preference information for the item. Set in the user preference information of the corresponding item. In S64, downlink information including information on a new version of the preference data table in which default values are set is transmitted to the vehicle-mounted device.

  The processes of S61 to S64 correspond to the functions of the storage unit 51 to the downlink information transmission unit 54 of the roadside device 50 (FIG. 12), respectively. Therefore, the specific aspect described about the function of the storage means 51-downlink information transmission means 54 is applicable also as a specific aspect about the process of S61-S64.

  The program to which the present invention is applied causes a computer to function as each unit of the roadside device 50. Another program to which the present invention is applied causes a computer to execute each step of the roadside device control method 60.

  This specification discloses various ranges and levels of the invention. The present invention is not limited to the various technical scopes and specific levels of the devices and methods described in the present specification. Extracting one or more elements to be played, one or more elements changed within a self-evident range, and a combination of one or more elements between devices and between 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 classification table assigned to each ID used in the 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 outline explanatory drawing of the uplink information sent to a roadside apparatus from ITS onboard equipment. It is a figure which shows an example of the preference data table transmitted to a ITS onboard equipment from a roadside apparatus.

It is a preference data table produced | generated in the ITS onboard equipment based on the preference data table of FIG. It is a figure which shows the preference data table of a new and old version by contrast. It is a figure which shows the information after the roadside apparatus arranged the stop point information of the motor vehicle which a roadside device receives and includes in uplink information from the roadside device of a motor vehicle at the time of area-in. It is a figure which shows the relationship between the stop point which the roadside apparatus has set, and preference data. It is a figure which shows the example of a display of the old and new version preference data table displayed with an ITS onboard equipment, when a roadside apparatus transmits special information about the revision item in a new version preference data table to an ITS onboard equipment. It is a block diagram of a roadside device. It is a flowchart of a roadside device control method.

Explanation of symbols

50: Roadside device, 51: Storage means, 52: Revision item search means, 53: Default value setting means, 54: Downlink information transmission means, 58: Storage device, 60: Roadside device control method.

Claims (5)

In the roadside device that transmits the information of the preference data table together with its version information to the onboard device that has entered the wireless communication area, and receives uplink information including user preference information for the preference data table from the onboard device,
Storage means for storing user preference information for the previous version of the preference data table in a storage device;
Revision item search means for searching for items that have been revised from the old version among the items in the preference data table of the new version,
Based on the correspondence between the items in the old version of the preference data table and the items in the new version of the preference data table that inherit the user preference information for the item, the default values of the revised items in the new version of the preference data table are Default value setting means for setting user preference information, and transmission information transmission means for transmitting transmission information including information of a new version of preference data table in which default values are set, to the vehicle-mounted device,
A roadside device comprising:   The roadside device according to claim 1, wherein the default value setting means sets a default value based on uplink information for a revised item for which a default value could not be set due to the correspondence relationship.   The roadside apparatus according to claim 1 or 2, wherein the transmission unit includes information indicating which is a revised item, together with information of a new version of the preference data table, and is transmitted in the transmission information. A method for controlling a roadside device that transmits information on a preference data table together with its version information to an onboard device that has entered a wireless communication area, and receives uplink information including user preference information for the preference data table from the onboard device. Because
A storage step for storing user preference information for the previous version of the preference data table in a storage device;
Revision item search step for searching for items that have been revised from the old version among the items in the preference data table of the new version,
Based on the correspondence between the items in the old version of the preference data table and the items in the new version of the preference data table that inherit the user preference information for the item, the default values of the revised items in the new version of the preference data table are A default value setting step for setting user preference information, and a transmission information transmission step for transmitting transmission information including information of a new version of the preference data table in which default values are set, to the in-vehicle device,
A control method comprising: The program which makes a computer function as each means of the roadside apparatus in any one of Claims 1-3.

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