JP2007170933A - Map broadcast reception terminal and map broadcast reception method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cause a mobile terminal to acquire desired contents by a date and hour asked for by a user even in a broadcast environment with reliable information reception unexpectable, in broadcast services for causing the mobile terminal to receive map contents. <P>SOLUTION: This map reception terminal comprises a reception part for receiving map broadcast, a record part for recording maps, an information reception part for receiving contents not recorded in the record part based on a schedule on the map broadcast, and an operation part for naming the date of information acquisition. The information reception part, if it has failed to receive the contents, tries again to acquire the contents by the named date based on the schedule. Further, if no chance of acquisition is available by broadcast, an alternative means is presented to a user. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mobile terminal that receives content distributed by broadcast media.

  When a broadcast data receiving device is provided, it is assumed that the reception status is bad. In order to solve these problems, there is a technique for searching for a rebroadcast of the same program from an electronic program guide (EPG), setting a reservation, and rerecording when the reception level is monitored and the reception level is poor (for example, Patent Document 1). .

Also, a combination is created so that the recording times do not overlap for a plurality of reservations. There is also a technique related to a program reservation recording apparatus that creates a combination of reservations again when a reception error occurs (for example, Patent Document 2). Further, assuming an in-vehicle terminal, if the scheduled video content cannot be received, it relates to an apparatus having a mechanism for issuing reservation data to a program reservation recording apparatus installed separately in the home and recording in place of the in-vehicle terminal There is also an invention (for example, Patent Document 3).

JP 2000-312323 A JP 2000-287140 A JP 2005-184316 A

In this invention, the map information used for a navigation with a vehicle-mounted terminal is made into reception object. If it is assumed that the mobile terminal is moving like an in-vehicle terminal, the position of the terminal is not fixed, so that the possibility of reception failure is very high compared to a terminal installed indoors. Also, when used for navigation, it is assumed that there is a predetermined map acquisition deadline in advance, such as a drive this weekend. Under these assumptions, the above prior art has not been studied. The present invention has been made in view of the above points, and a mobile terminal is desired even in a broadcasting environment where reliable information reception cannot be expected. The purpose of this is to acquire the content by the date and time requested by the user.

Representative inventions disclosed in the present application are as follows.
In order to solve the above-described problem, in the receiving terminal of the present invention, a receiving unit that receives a broadcast, a recording unit that records the received content, an input unit that specifies the content to be received and inputs the acquisition deadline, A broadcast receiving terminal comprising: an information processing unit that controls reception of content not recorded in the recording unit based on a broadcast schedule. In particular, the information processing unit repeatedly tries to receive the specified content until the acquisition date.

According to the present invention, even when using a broadcast medium for which reliable information acquisition cannot be expected for a mobile terminal, by capturing the next opportunity in a period up to a desired date and time by a schedule after reception failure, Get the desired content. If there is no opportunity before the desired date and time, an effect of ensuring alternative use of the information by presenting the content by the user can be obtained.
Thereby, like the example of a drive, reception of a desired map content can be completed by the date and time which a user asks. Furthermore, it is possible to notify in advance that the desired map content cannot be received by the date and time desired by the user, and to present an alternative means for content acquisition.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a schematic configuration for acquiring information by broadcasting using a map receiving terminal to which an embodiment of the present invention is applied. The system of the present application includes a map receiving terminal 110 that receives information via broadcasting, and a broadcasting station 120 that provides content to the map receiving terminal 110 by broadcasting. The map receiving terminal 110 includes a broadcast schedule and a recording unit 111 that holds the acquired content, an information processing unit 112 that performs content reception control, and a map broadcast from the broadcasting station 120 under the control of the information processing unit 112. A receiving unit 113 for receiving and a user operation unit 114 for giving an instruction of desired content from the user are provided. The broadcasting station 120 includes a transmission unit 121 that transmits content, a management unit 122 that stores content to be transmitted in advance, and a schedule table management unit 123 that manages a schedule table for broadcasting.

  For example, the map receiving terminal 110 corresponds to a car navigation terminal, and the broadcasting station 120 corresponds to a broadcasting station such as FM multiplex broadcasting or terrestrial digital broadcasting. Since such a map receiving terminal 110 acquires content that has not yet been recorded in the recording unit 111, it grasps the next date and time when the unacquired content is distributed from the broadcast schedule table held in the recording unit 111. Then, the content is received by the receiving unit 113 at the broadcast date and time on the left, and an instruction to store in the recording unit 111 is given from the information processing unit 112.

  Note that, generally, in content distribution by broadcasting, a method is used in which a broadcasting station repeatedly distributes the same content, and a receiving terminal receives it from several occasions. This is because the reception is not always successful for the following reasons. In this embodiment, the broadcast station 120 distributes the same content a plurality of times.

  Since the map receiving terminal 110 as a target in the present invention is assumed to move, it is assumed that content cannot be acquired for the following reason. First, since the map receiving terminal 110 is located outside the area of the broadcasting station to which the schedule table belongs, broadcasting cannot be received. Secondly, even within the broadcasting station area, the reception situation is bad due to obstacles or the like, and it cannot be received. The third is a case where the receiving unit 113 cannot receive a desired broadcast because it receives a broadcast from another broadcast station by a user operation such as video reception. In this regard, it is also conceivable to keep the terminal in a receiving state. However, for example, a mobile terminal represented by a car navigation terminal is energized only when used, and is turned off when not used. Also, from the viewpoint of power consumption of the battery that supplies power to the mobile terminal, it is not a good idea to always turn on the map receiving terminal 110 and continue to receive it.

  Therefore, in order to achieve stable content acquisition even in such a broadcast medium where reliable content acquisition cannot be expected, the map receiving terminal 110 of the present application once again fails to receive the next time using the schedule table if reception fails once. Find the date and time and try to receive the previously failed content at the date and time on the left.

  In addition, the schedule used for content acquisition in the present application may be stored in the recording unit 111 before starting reception. As the acquisition means, a plurality of implementations can be taken as shown below. It is recorded in advance on the map receiving terminal 110 described above or acquired from the receiving unit 113 provided in the map receiving terminal 110 through broadcasting. Or it has map receiving terminal 110 user operation part 114, a network connection part, a media reading part, etc., and it is also possible to acquire via these. Any one or more of these may be combined. In the case where the schedule is received by broadcasting, the schedule is regularly distributed from the broadcasting station 120. The contents described in the schedule shall also be updated regularly.

  In this embodiment, map information is considered as content distributed from the broadcasting station 120 to the map receiving terminal 110 by broadcasting means when the map receiving terminal 110 is regarded as a car navigation terminal. Of course, it is possible to broadcast other than map information. For example, the latest map information updated every day is periodically registered in the management unit 122 of the broadcasting station 120 and distributed to the map receiving terminal 110 as needed. Thereby, the map information held in the recording unit 111 of the map receiving terminal 110 is updated, and the function that the route calculation process of the car navigation always obtains the optimum search result and presents it to the user can be realized.

Thus, when map information is handled as content, the following implementation example can be taken as a broadcasting method. For example, the latest nationwide map information every month is registered in the management unit 122 of the broadcasting station 120 and is sequentially distributed to the map receiving terminal 110. Alternatively, map information is divided into several types or regions, or appropriate combinations of types and regions, and each map is distributed as a unit. Or only the change difference data of the map information updated in a specific period is distributed for every nation / area. Alternatively, it can be implemented by delivering one or more of these.

  Since there is no difference in these basic processes, an example in which map information is distributed for each region as a representative example will be described in detail with reference to FIGS. 1, 2, 3, and 4. FIG. First, FIG. 2 shows a conceptual diagram in which map content management units are divided for each region. Here, it is assumed that the map information is updated and managed in 6 areas from area A to area F, and the broadcast station 120 of FIG. 1 has for each map content data area that is corrected to reflect the latest information every month. It is assumed that it is registered in the management unit 122.

  3 shows an acquired content table 300 for managing acquired content recorded in the recording unit 111 included in the map receiving terminal 110 of FIG. In this, the identification information of the content already acquired via the receiving unit 113 is stored. For example, the area to be mapped and the information about the month version are described. Here, for area A and area B, it has already been received until the September version.

  Next, a schedule table 400 shown in FIG. 4 is a broadcast schedule table distributed from the broadcasting station 120 of FIG. In this embodiment, the broadcast date, start time, end time, and broadcast content items are described. In the broadcast content item, in order to identify the content, data that can identify the area represented by the map content and the version that is sequentially updated is described. For example, the area A October version is scheduled to be broadcast from 10:00 to 11:00 on October 1 and 8, 2005.

  The data structure of the schedule is not limited to the above. For example, when the broadcast form in which the day of the week, the broadcast cycle, etc. are fixed can be further simplified, it is only necessary to describe the start time and the content identification information to be broadcast. On the other hand, if a form can be received by receiving from a plurality of broadcasting stations, the broadcasting station is also described in the schedule, or a schedule is provided for each broadcasting station, and information for identifying the broadcasting station is given for each schedule data Shall be.

  Next, FIG. 5 shows a reception reservation table 500 indicating the next reception opportunity of unacquired content obtained from the acquired content table 300 shown in FIG. 3 and the schedule table 400 shown in FIG. Here, it is assumed that the map contents of area A and area B are designated in advance by the user to be received. The reception target is assumed to be selected from the menu or the map display screen via the user operation unit 114 of the map receiving terminal 110. Alternatively, an area including the user's residence may be set as a reception target. As for the procedure for creating the reception reservation table 500, the broadcast date is first compared with the current date and time for each record in the schedule table 400, and a record whose broadcast date has not yet passed is extracted. Next, the user-desired area information set in advance and the broadcast contents of the schedule 400 are compared, and the corresponding record is extracted. Further, the information registered in the acquired content table is compared with the broadcast content of the above-mentioned record, and the record indicating the broadcast schedule of the acquired content is removed. As a result of following the above processing procedure, a reception reservation table 500 as shown in FIG. 5 can be generated.

  As shown in the example of FIG. 3 described above, the map receiving terminal 110 has only received the September version until the area A, so when searching for future reception opportunities for the October version of the area A shown in FIG. As shown in FIG. 5, it is calculated from 10 o'clock on October 1 and 8, 2005.

  Finally, FIG. 6 shows a broadcast reception flow using the acquired content table 300, schedule table 400, and reception reservation table 500 described so far. In step 610, the latest reception reservation record is acquired from the reception reservation table 500. Each record of the reception reservation table 500 is determined by a user operation as described above. In the timer process in step 620, the program waits until the broadcast date and start time described in the reception reservation record are reached, and at the same time, the reception control unit 112 of the map receiving terminal 110 has a reception start notification from the reception control unit 112 in step 630. The power is turned on and reception starts. When it is confirmed in step 640 that the data acquisition is successful, the map content received in step 650 is recorded in the recording unit 111, and the acquired content table 300 is corrected. If data acquisition fails, the process returns to step 610. Subsequently, in step 660, the reception reservation record is deleted from the reception reservation table 500. As a result, in step 670, if the number of records registered in the reception reservation table becomes zero, the process is terminated, and if there are remaining records, the process returns to step 610. At this point, the power supply is turned off, and by implementing the broadcast reception flow described above, even if reception of unacquired content fails for some reason, the terminal automatically continues to set and receive the next opportunity. Try. Thereby, the user can use the latest map information stably. In addition, it is good also as the process by which a multiple reception reservation record is created first and is taken in into FIG. 6 flow in order of time. In addition, about description of ON / OFF of the said power supply, the power supply is always energized only to the information processing part 112 of the map receiving terminal 110, and when the designated time comes, the main power supply is turned on to energize all the processing parts. It is also good.

  As a supplement, the map receiving terminal 110 of FIG. 1 may be implemented by dividing the broadcast receiving unit 710 and the broadcast receiving terminal 730 into two housings as shown in FIG. Even in this form, it is possible to receive and record content by capturing opportunities that can be received by the same processing flow as in FIG. Also, by separating the casing, it is possible to combine with a plurality of broadcast receiving terminals 730 using different broadcasting systems such as terrestrial digital and FM multiplexing, which contributes to the diversity of services by broadcasting.

  FIG. 8 shows a configuration in which the map receiving terminal 110 of FIG. 1 is further provided with a network connection unit 814 and the schedule 400 is acquired from the content broadcast station 820 via the network 830. As an implementation example, there is a method of connecting to the mobile phone via a cable or the like to the map receiving terminal 810. In this case, since the latest broadcast schedule can be acquired from the broadcast station 820 at any time via the mobile wireless communication network, the map receiving terminal 810 can obtain an advantage that it can quickly respond to a change in the broadcast schedule.

  In addition to the embodiment described so far, it is possible to add a process for specifying the content to be updated and the due date in advance, and the map receiving terminal can acquire the map content by the due date as specified by the user. Leads to convenience. An embodiment in which such desired content designation and due date designation are set will be described. First, an acquisition date is set in a predetermined cycle for a predetermined range. Furthermore, a desired area and date can be set by an input via the user operation unit 114 further included in the map receiving terminal 110. For example, a display unit is provided in the map receiving terminal 110 to set a route to a designated destination when the user receives a travel schedule input about the destination and due date from the map display screen, and around the route Set the area as the area you want to get the map. In addition, information acquired from the receiving unit 113 of the map receiving terminal 110 via broadcasting can be used. For example, setting is performed by taking in event information held at a certain place and period via broadcasting or separately reading network media and receiving any user selection. It should be noted that any one of these may be used alone or in combination of two or more. FIG. 9 shows an example of the date specification table 900 describing the acquisition date and content identification determined by any of the above means. In this example, the date is specified to acquire the map content of the area A October version by October 10, 2005. This date specification table 900 is created by the information processing unit 112 and recorded in the recording unit 111.

  When the date specification table 900 is newly provided, the information processing unit 112 generates the reception reservation table 500 from the acquired content table 300, the schedule table 400, and the date specification table 900 newly provided. For example, it is specified that the map content of the area October version is acquired by October 10, 2005 shown in the previously acquired content 300 of FIG. 3, the schedule table 400 of FIG. 4, and the due date specification table 900 of FIG. When the reservation table is obtained, two reception opportunities on October 1st and 8th, 2005 are registered in the reception reservation table 500 as shown in FIG. Thereby, for example, when the user makes a drive plan to a certain destination, the map in the range to the destination is updated before the scheduled drive date, and the latest map information can be used.

  Note that, depending on the combination of each item, since there is no scheduled broadcast of the desired content by the due date, it may not be acquired. It is useful to notify the user of the possibility of reception by presenting such a situation to the user when the due date is specified. As for the possibility of reception, when the reception reservation table 500 is generated, if the reception opportunity is less than or equal to a predetermined value for each registration in the due date specification table, that fact may be presented to the user.

  When notifying the above-mentioned reception availability, if there is no reception opportunity left by the date specified by the user, or if reception is unsuccessful due to poor radio wave conditions during actual reception, obtain map content other than broadcast It is useful to present alternative means. Examples of the content acquisition / substitution means include the following implementation examples. The first is to send a re-broadcast request from the information processing unit 112 of the map receiving terminal 110 to the broadcasting station 120 via the receiving unit 113 and work to provide a new reception opportunity. Second, a re-broadcast of the desired content or a transmission of the desired content through the network is requested via a network connection unit further provided in the map receiving terminal 110. Third, a desired content is acquired from a portable memory medium or the like via a media reading unit further provided in the map receiving terminal 110. Of course, acquisition may be attempted by combining one or more of these plural means.

  Note that, in response to the re-broadcast requests listed in the first and second of these, the broadcast station 120 provides a re-broadcast frame when many similar requests are received, and the desired content can be replayed. Broadcasting also contributes to improving user convenience. It would also be effective to provide a regular broadcast frame and a frame for broadcasting content highly requested by the user in the schedule set by the broadcast station 120.

  Further, it is advantageous for the user from the viewpoint of usability to notify the user of the success of the reception in the next reception reservation and to notify the user of success or failure at the time of the next power activation after the end of data acquisition or after the end of data acquisition. For example, when the user detects the likelihood of successful reception in advance of the former, it is possible to grasp whether the map content update necessary for the latest drive plan can be received as scheduled or difficult to receive. In addition, the latter notification of data acquisition success allows the user to grasp the update state of the map content held by the mobile terminal. Furthermore, the presentation of the content acquisition substitute means that is necessary when reception fails can enable the user to grasp the content acquisition means. A broadcast reception flow considering these processes is shown in FIG. This is a flow in which the following items are newly added to the broadcast reception flow shown in FIG. First, the remaining reception opportunity count for acquiring the same content from the reception reservation is presented, so that the remaining reception opportunity count notification 1015 for presenting the accuracy of future content reception to the user is detected. Next, the radio wave condition or the like is detected immediately before reception. , A reception success expectation notification 1025 for notifying the likelihood of successful reception, a reception failure notification 1041 for presenting the fact to the user when data acquisition has failed, and a content such as a network or a portable medium An alternative acquisition means presentation 1042 for presenting another means, and finally, a reception success notification 1065 for notifying the user when the reception is successful. The notification process 1065 is performed at the next power activation. These extension items do not have to include all, and may include only one or more combined items.

  Furthermore, after the next broadcast reception reservation is set (1010) in the broadcast reception flow of FIG. 10, for example, when the user performs a route calculation of the navigation function, information on the reception possibility can be presented. For example, if the parking lot that is the destination is underground, there is a possibility that content that has a reception schedule that overlaps with the arrival time schedule based on the estimated travel time information calculated by navigation cannot be received. Be sure to present alternatives. This is beneficial for improving the accuracy of content reception.

  In the following embodiment, a broadcast reception flow for efficient reception in an environment where a plurality of broadcast stations exist will be described with reference to FIGS. 11, 12, 13, 14, and 15. FIG. FIG. 11 shows a map receiving terminal 1110 in which a position detecting unit 1114 is further provided in the map receiving terminal 110 of FIG. The position detection unit 1114 corresponds to GPS, a gyro, or a combination thereof, and can always grasp the position of the map receiving terminal 1110. In addition, FIG. 12 shows areas in which a plurality of broadcasting stations 1, 2, and 3 can receive each. As for map content, it is assumed that map content updated by the same management unit shown in FIG. 2 is periodically registered in the management unit 1122 of each broadcasting station 1120. FIG. 13 shows an example of the schedule table at each broadcasting station shown in FIG. 12, and shows the schedule table 1301 of the broadcasting station 1 and the schedule table 1302 of the broadcasting station 2, respectively. The items are the same as those in the schedule table 400 of FIG. 4 described above, but the broadcast contents are distributed in an inclined manner so that the map contents in the broadcast area are distributed with priority. For example, the map contents of area A, area C, and area F overlapping the broadcast area are mainly distributed to the schedule table 1301 of the broadcasting station 1 in FIG. As a result, the map content in the vicinity of the broadcast area is frequently distributed, and the map content in the remote area is occasionally distributed, so that the broadcast band can be effectively used. As for the schedule for each broadcast station, schedule schedules for adjacent broadcast stations are also distributed, such as schedule schedules for broadcast station 1 to broadcast station 2 and broadcast station 3 are also distributed. It is desirable to be able to obtain the user. Thereby, even if it does not enter the receiving area of a specific broadcasting station, the advantage which can acquire the schedule table of this broadcasting station is acquired.

  In FIG. 14, a reception reservation table is set for each broadcasting station based on the schedule table of each broadcasting station described in FIG. For example, the broadcast of the October version of area C is from 10:00 on October 1, 2005 as shown in the reception reservation table 1401 if it is in the reception area of the broadcast station 1, and if it is in the reception area of the broadcast station 2, Similarly, as shown in the reception reservation table 1402, it is from 11:00 on October 1, 2005. Since the reception reservation table is switched according to the position of the map receiving terminal 1110 as described above, the reception reservation table switching flow shown in FIG. 15 is used to switch the reception reservation according to the broadcast reception area located at that time. In the flow of FIG. 15, the position detection 1501 is periodically repeated to grasp which broadcast station is in the reception area each time, and if it is different from the previous time (1502), switch to the reception reservation table of the corresponding broadcast station. Processing (1503) is performed. By performing this switching process in parallel with the broadcast reception flow shown in FIG. 6 or FIG. 10, it is possible to receive map content even when moving across a plurality of broadcasting stations.

As described above, in the implementation example on the assumption that the map receiving terminal moves between the receiving areas of a plurality of broadcasting stations, a new movement schedule table describing the future destination of the map receiving terminal and the staying time zone is newly provided. That is, an effect of saving the processing for generating and managing the reception reservation table for each of the plurality of broadcasting stations can be obtained. As an example of implementation of this movement schedule, there is a movement schedule 1600 shown in FIG. In this example of the movement schedule, a plurality of records including date or day of the week, time zone, and position coordinates are registered. For example, from the past movement history of the map receiving terminal, staying at the work parking lot position (x2, y2) from 9:00 to 18:00 on weekday daytime, and from 00:00 to 8:00 on weekdays From 24:00, a record indicating staying at the home parking lot (x1, y1) is registered on the weekend and all day. Alternatively, for example, by staying at the driving destination (x3, y3) from 6:00 to 20:00 on October 10, 2005 by an input via the user operation unit further provided in the map receiving terminal 110 A record describing a specific date and place may be registered. Alternatively, it may be implemented by loading from a portable memory medium or a scheduler registered in another PDA or the like via a media reading unit further provided in the map receiving terminal 110. Of course, a movement schedule record may be generated from a combination of any one or more of these means and registered in the movement schedule table 1600. By newly using the moving schedule table 1600 described above, when generating the reception reservation table for each broadcasting station shown in FIG. 14, the possibility of staying in the receiving area on the broadcasting day is low. The reception reservation record is notified by excluding the remaining number in the 1015 reception opportunity remaining number notification in the broadcast reception flow of FIG. 10, so that it is possible to correctly present the expected reception opportunity to the user. In broadcast content distribution, it is also effective to include event information specialized for the region and time. For this purpose, an event corresponding to an area designated by the user in advance during the generation process of the reception reservation table 500 is described in the schedule of FIG. A record representing information may be extracted and output to the reception reservation table. As a result, in addition to periodic map content updates, non-periodic event information can be received and can be used by the user.

The block diagram showing a map receiving terminal and a broadcasting station. The conceptual diagram showing the management unit of map content. The figure showing the example of mounting of the acquired content table. The figure showing the implementation example of the schedule table of a broadcasting station. The figure showing the example of mounting of a reception reservation table. The figure showing the broadcast reception flow of a map receiving terminal. The block diagram which divided the map receiving terminal and the broadcast receiving terminal. The block diagram showing the map receiving terminal and broadcasting station which were equipped with the network connection part. The figure showing the example of implementation of a date specification table. The figure showing the broadcast reception flow of a map receiving terminal. The block diagram showing the map receiving terminal equipped with the broadcasting station and the position detection part. The figure showing a map content management unit and a broadcast station reception area. The figure showing the implementation example of the schedule for every broadcasting station. The figure showing the implementation example of the reception reservation table for every broadcasting station. The figure showing a reception reservation table switching flow. The figure showing the implementation example of a movement schedule.

Explanation of symbols

110 Map receiving terminal 120 Broadcast station 300 Acquired content table 400 Schedule table 500 Reservation reservation table 610, 620, 630, 640, 650, 660, 670 Broadcast receiving flow 710 Map receiving terminal 720 Broadcast station 730 Broadcast receiving terminal 810 Network connection unit Map receiving terminal 820 with broadcasting station 900 with network connection section Date designation table 1010, 1015, 1020, 1025, 1030, 1040, 1041, 1042, 1050, 1060, 1065, 1070 Broadcast reception flow processing step 1110 Position Map receiving terminal 1120 provided with detecting unit Broadcast station 1301 Schedule table 1302 of broadcast station 1 Schedule table 140 of broadcast station 2 Reservation reservation table 1402 for broadcast station 1 reception area Reception reservation tables 1501 and 1502 for broadcast station 2 reception area , 1503 Processing step 1600 movement calendar reservation switching flow.

Claims (12)

A receiver for receiving broadcasts;
A recording unit for recording the received content;
Specify the content to be received and input the acquisition deadline;
An information processing unit that controls reception of content not recorded in the recording unit based on the broadcast schedule;
The broadcast receiving terminal, wherein the information processing unit repeatedly tries to receive the designated content until the acquisition date. The broadcast schedule above is
The broadcast receiving terminal according to claim 1, wherein the broadcast receiving terminal is obtained via the receiving unit or a network connecting unit connected to a network.   2. The information processing unit starts up the power supply at the time of content acquisition and attempts the reception, and turns off the power supply when it is determined that the content cannot be received, and starts up the power supply again at the time of the acquisition. Or the broadcast receiving terminal of 2.   4. The broadcast receiving terminal according to claim 1, wherein each of the contents is map data of a specific area.   The broadcast receiving terminal according to any one of claims 1 to 4, wherein the content is difference data of map data changed during a specific period.   The broadcast receiving terminal according to any one of claims 1 to 5, wherein an expected reception of the content by the acquisition date is presented. If you do not expect to receive the content by the acquisition date,
The map receiving terminal according to any one of claims 1 to 6, wherein the content receiving request is issued via the receiving unit or the network, or display is made to prompt acquisition by another method of the content.   The map receiving terminal according to any one of claims 1 to 7, wherein when the power is turned on, a result of the content reception attempted before the power is turned on is presented. The above schedule is a plurality of schedules in different broadcast areas,
The map receiving terminal according to any one of claims 1 to 8, wherein the reception is attempted according to a schedule of the broadcasting area at a current position of the map receiving terminal.   When the route setting is instructed, the information processing unit presents that there is a possibility that the content cannot be received from the scheduled time and the route travel scheduled time when there is content to be acquired. The map receiving terminal according to claim 1, wherein the map receiving terminal is a map receiving terminal. Receiving the content specification and the input date for receiving the content from the user, obtaining the content broadcast time based on the recorded broadcast schedule,
Broadcast acquisition characterized in that, when acquisition of the content fails at the broadcast time of the content, the content acquisition is attempted again at the content broadcast time after the broadcast time, and the attempt is repeated until the broadcast date. program. The above content is map information,
12. The broadcast receiving program according to claim 11, wherein when the content acquisition fails, the terminal is turned off, and the terminal is automatically turned on when the content acquisition is attempted again.

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