JP3967334B2 - Mobile digital broadcast receiving system, information center, and mobile - Google Patents

Description

  The present invention relates to a mobile digital broadcast receiving system, an information center, and a mobile body used for receiving digital broadcasts.

Conventionally, when terrestrial digital broadcasting is received by a mobile unit, for example, the channel selection information in the current location can be transmitted by communication other than terrestrial digital broadcasting so that the mobile unit can easily receive the same program even if the mobile unit is out of the current receiving area. There are some which acquire by means and perform channel selection. Specifically, when it is difficult to receive a program outside the reception area while the moving body is moving, it is necessary to communicate via a communication means capable of acquiring information on the road such as FM character multiplex broadcasting, optical beacon, and radio beacon. Thus, new channel selection information that can be received at the current location is acquired. This makes it possible to select the same program immediately without performing a channel search by a terrestrial digital broadcast receiver (see, for example, Patent Document 1).
JP 2002-353829 A

  By the way, in the conventional apparatus described in Patent Document 1, even when the mobile object is out of the current reception area, channel selection information at the current location is acquired by communication means other than terrestrial digital broadcasting, and channel selection is performed. As a result, it is possible to select the same program immediately without performing a channel search by a terrestrial digital broadcast receiver, but it cannot be received when the moving object leaves the current reception area or moves to the next area. Since the broadcasting station to be received is switched after entering the state, reception is inevitably interrupted at the boundary of the area. However, in recent years, for example, as a entertainment system for rear seats such as automobiles, the necessity of receiving digital broadcasts and the necessity of receiving data broadcasts has increased, and the boundaries of broadcast areas have been set to users. There is a problem that it is necessary to view a program and receive a data broadcast without being conscious of it, and there is a problem in that the end of the viewing program and data reception may impair the convenience of the user.

  The present invention has been made in view of the above problems, and provides a mobile digital broadcast receiving system, an information center, and a mobile unit that can complete reception of a received program without interruption when receiving a digital broadcast. With the goal.

A mobile digital broadcast receiving system according to a first aspect of the present invention is a mobile digital broadcast having a mobile (for example, a mobile device 1 of an embodiment described later) and an information center (for example, an information center 2 of an embodiment described later). In the receiving system, the mobile unit communicates with the outside (for example, a communication terminal 16 in the embodiment described later) and position evaluation means for evaluating the current location (for example, own vehicle position rating in the embodiment described later). Device 41), route calculation means for calculating route information for movement (for example, route guidance calculator 42 in the embodiment described later), and parking lot information storage means for storing parking lot information (for example, in the embodiment described later). A parking lot database 46) and guidance request determination means for determining whether or not the user desires to guide the parking lot (for example, step S35 executed in the mobile device 1 of the embodiment described later, Or broadcast information storage means for acquiring and storing digital broadcast area information and digital broadcast program information from the information center via the communication terminal (for example, in the embodiments described later). A digital broadcast data storage unit 26), a digital broadcast receiver for receiving digital broadcasts (for example, a digital broadcast receiver 12 of an embodiment to be described later), and route guidance means for performing route guidance based on the route information (for example, described later). The navigation unit 14) of the embodiment, and when the route calculation means wishes to guide the user to the parking lot, the current location information output from the location assessment means, the destination information, Based on the digital broadcast area information, the digital broadcast program information, and the parking lot information, And calculates the path information from the ground to continue receivable parking the received program where the digital broadcast receiver receives.

  The mobile digital broadcast receiving system having the above configuration is such that when the mobile route calculation means has a user's request for guidance to the parking lot, the current location information and the destination information output by the location assessment means. The digital broadcast receiver receives the digital broadcast area information and digital broadcast program information received from the information center and stored in the broadcast information storage means, and further based on the parking lot information stored in the parking lot information storage means. By calculating the route information to the parking lot where the received program can be continuously received, the route guidance means of the mobile unit is guided to the parking lot where the digital broadcast receiver can receive the received program continuously. Can be made.

The mobile object according to the invention of claim 2 is a position rating means for evaluating the present location, a digital broadcast receiver for receiving digital broadcasts, and a guidance request determination means for determining whether or not a user desires to guide the parking lot. Transmitting means for transmitting to the information center information on the current location output by the position evaluation means, information on the received program received by the digital broadcast receiver, and selection information indicating whether the user wants to guide the parking lot And when the user wishes to be guided to the parking lot, based on the current location information, the received program information, the digital broadcasting area information and digital broadcasting program information of the information center, and the parking lot information. The route information from the present location to the parking lot where the received program received by the digital broadcast receiver can be continuously received is calculated. And signal means, characterized in that a route guidance means for performing route guidance based on the route information.

  The mobile unit having the above configuration is selected by the transmission means indicating the current location information, the destination information, the received program information received by the digital broadcast receiver, and whether or not the user desires to be guided to the parking lot. When information is transmitted to the information center and the user wishes to be guided to the parking lot, the current location information, the received program information, the digital broadcasting area information and digital broadcasting program information of the information center, and the parking lot By receiving the route information from the current location to the parking lot where the received program received by the digital broadcast receiver can be continuously received, which is calculated in the information center based on the information, by the receiving unit, the digital broadcasting is performed by the route guiding unit. Route guidance to a parking lot where continuous reception of a received program received by the receiver is possible can be executed.

An information center according to a third aspect of the present invention provides, from a mobile unit provided with route guidance means for performing route guidance based on route information, information on the current location of the mobile unit, information on received programs received by the mobile unit, and Receiving means for receiving selection information indicating whether or not the user wishes to guide the parking lot, parking information storing means for storing parking lot information, broadcast information for storing digital broadcast area information, and digital broadcast program information An information center comprising storage means, route calculation means for calculating route information for moving the mobile body, and transmission means for transmitting the route information calculated by the route calculation means to the mobile body. When the route calculation means desires to be guided to the parking lot by the user, the current location information, the received program information, the digital broadcast area information, the digital broadcast Program information, and based on the parking lot information, and calculates the path information from the current position of the moving body to continue receivable parking the received program where the digital broadcast receiver receives.

  The information center having the above configuration receives the current location information from the mobile unit, the received program information received by the mobile unit, and the selection information indicating whether the user wants to guide the parking lot. The mobile unit calculated by the route calculation means based on the current location information, the received program information, the digital broadcast area information and the digital broadcast program information, and the parking lot information when the user wishes to guide to the parking lot By receiving the route information from the current location to the parking lot where the received program received by the mobile unit can be continuously received by the transmission unit, the digital broadcast receiver receives the route information of the mobile unit. Route guidance to a parking lot where continuous program reception is possible can be executed.

A mobile digital broadcast receiving system according to a fourth aspect of the present invention is a mobile digital broadcast receiving system having a mobile body and an information center, wherein the mobile body evaluates the current location, A digital broadcast receiver to receive, a guidance request determination means for determining whether or not the user wants to guide to the parking lot, information on the current location output by the position evaluation means, and a received program received by the digital broadcast receiver Information and selection information indicating whether or not the user desires to be guided to the parking lot is transmitted to the information center, receiving means for receiving the route information for moving from the information center, and the route information Route guidance means for performing route guidance based on the information, and the information center receives information on the current location of the mobile body and information on received programs received by the mobile body from the mobile body. , And receiving means for receiving selection information indicating whether or not the user wishes to guide the parking lot, parking lot information storing means for storing the parking lot information, digital broadcasting area information, and digital broadcasting program information are stored. Broadcast information storage means, route calculation means for calculating route information for moving the mobile body, and transmission means for transmitting the route information calculated by the route calculation means to the mobile body, When there is a request for guidance to the parking lot by the user, the calculating means is based on the current location information, the received program information, the digital broadcast area information, the digital broadcast program information, and the parking lot information. The route information from the current location of the mobile unit to the parking lot where the received program received by the digital broadcast receiver can be continuously received is calculated.

  In the mobile digital broadcast receiving system having the above-described configuration, the mobile is requested to provide information on the current location, destination information, received program information received by the digital broadcast receiver, and a user's request for guidance to the parking lot. Selection information indicating presence / absence is transmitted to the information center, and when the information center desires to guide the user to the parking lot, information on the current location of the moving object, information on the destination, information on the received program, and information center Route information calculated by the route calculation means based on the digital broadcast area information, digital broadcast program information, and parking lot information possessed by the vehicle from the current location of the moving body to the parking lot where the received program can be continuously received. By transmitting to the mobile body, it is possible to cause the route guidance means of the mobile body to perform route guidance to the parking lot where the received program received by the digital broadcast receiver can be continuously received.

According to the mobile digital broadcast receiving system of claim 1 , when there is a user's request for guidance to the parking lot, the mobile body's route guidance means is based on the route information calculated by the mobile body itself. In addition, route guidance to a parking lot where continuous reception of received programs received by the digital broadcasting receiver can be performed.
Therefore, when the user follows the route guidance, the reception program is completely received without interruption by stopping at the parking lot where the received program received by the digital broadcast receiver can be received, and the provision of information to the user is also completed. Thus, it is possible to realize a mobile body or a mobile digital broadcast receiving system that improves user convenience.

According to the mobile unit according to claim 2 , when there is a user's request for guidance to the parking lot, the digital broadcast receiver receives the route guidance unit based on the route information calculated by the information center. Route guidance to a parking lot where continuous reception of received programs can be performed can be executed. According to the information center of the third aspect , when there is a user's desire to guide to the parking lot, the mobile body route guide means receives the digital broadcast based on the route information calculated by the information center. Route guidance to a parking lot where continuous reception of received programs received by the machine can be executed. Similarly, according to the mobile digital broadcast receiving system according to claim 4 , when there is a user's request for guidance to the parking lot, the route guidance of the mobile is based on the route information calculated by the information center. It is possible to cause the route guidance to the parking lot where the received program received by the digital broadcast receiver can be continuously received .

  Therefore, when the user follows the route guidance, in the parking lot where the received program received by the digital broadcast receiver can be continuously received, the reception program is completely received without interruption, and the provision of information to the user is also completed. There is an effect that it is possible to realize a mobile body, an information center, or a mobile digital broadcast receiving system that improves user convenience. Further, by executing the calculation of the route information on the information center side, it is possible to reduce the burden on the moving body, and to achieve the effect that the moving body can be reduced in size, power consumption, and cost can be reduced.

  Embodiments of the present invention will be described below with reference to the drawings.

(Configuration of mobile device)
First, the configuration of the mobile device 1 used in the mobile digital broadcast receiving system according to the first embodiment of the present invention will be described. FIG. 1 is a block diagram showing the configuration of a mobile device 1 used in the mobile digital broadcast receiving system of this embodiment.
In FIG. 1, a mobile device 1 used in the mobile digital broadcast receiving system of the present embodiment is a device mounted on a vehicle such as an automobile, and is received by a digital broadcast antenna 11 mounted on the vehicle. The position of the vehicle (vehicle position) is evaluated by the GPS (Global Positioning System) received wave by the digital broadcast receiver 12 that receives the digital broadcast by the broadcast wave and the GPS antenna 13 mounted on the vehicle, and the target is determined from the current location. An apparatus for performing navigation by calculating route information to the ground, comprising a navigation unit 14 having a function of displaying a traveling state and data accompanying it, and a communication terminal 16 for communicating with the outside by a communication antenna 15. ing.

  On the other hand, the digital broadcast receiver 12 will be described in more detail. The digital broadcast receiver 12 is connected to the digital broadcast antenna 11 and also receives a receiver 21 that demodulates a digital broadcast wave, and a digital broadcast wave demodulator. A demultiplexer 23 that separates viewing program information and data broadcast information later, and a program information acquirer 24 that acquires program information (Electronic Program Guide) from the data broadcast information are provided.

  The digital broadcast receiver 12 also extracts a digital broadcast data generator 25 that demodulates digital broadcast data acquired by external data communication using the communication terminal 16, and extracts program information from the demodulated digital broadcast data. A digital broadcast data storage 26 that stores together with the program information acquired by the program information acquisition unit 24, and an EPG process that processes the output of program information acquired by the program information acquisition unit 24 or program information extracted from the digital broadcast data 27, a channel selector 28 for selecting a channel from program information stored based on default setting or user information display selection operation, and video, audio, and data information selected by the channel selector 28. A video / audio / data decoder 29 for decoding is provided.

  Further, the digital broadcast receiver 12 superimposes data information such as EPG output from the EPG processor 27 on the video / audio data information combined by the video / audio / data decoder 29, and a display content synthesizer 30. And a digital broadcast display 31 for displaying the composite content output from the display content combiner 30.

  On the other hand, the navigation unit 14 is connected to the GPS antenna 13 and has its own vehicle position rating device 41 that evaluates its own position based on GPS received waves, and route guidance information (route information) based on a destination setting operation by the user. And a route guidance calculator 42 capable of calculating route information by route search, and a communication data transmitter / receiver 43 for generating data to be transmitted in data communication with the outside using the communication terminal 16. . The communication data transmitter / receiver 43 receives data in data communication with the outside using the communication terminal 16, and receives the received data as a digital broadcast data generator 25 of the digital broadcast receiver 12 and a route information generator 44 described later. Output to.

The navigation unit 14 also displays a route information generator 44 that generates route display information based on data related to travel information acquired by data communication with the outside using the communication terminal 16, and the generated route display information. And an information display 45. Note that the vehicle position evaluation device 41 of the navigation unit 14 may use a gyro data or the like regardless of the GPS received wave as a method of evaluating the vehicle position. The route guidance calculator 42 is connected to a parking lot database 46 that stores location information of parking lots and whether or not digital broadcasting can be received for each parking lot. Details of how to use the parking lot database 46 will be described later.
The communication terminal 16 includes a communication device 51 connected to the communication antenna 15.

(Information center configuration)
Next, the configuration of the information center 2 used in the mobile digital broadcast receiving system according to an embodiment of the present invention will be described. FIG. 2 is a block diagram showing the configuration of the information center 2 used in the mobile digital broadcast receiving system of this embodiment.
In FIG. 2, the information center 2 used in the mobile digital broadcast receiving system of the present embodiment performs wireless communication with the communication terminal 16 of the mobile device 1 mounted on a vehicle such as an automobile. Corresponds to the route represented by the route information of the vehicle received by the information input unit 101 from the information input unit 101 for receiving the route information of the vehicle and the broadcast area determination unit 102 for determining the digital broadcast area on the route. An arithmetic processing unit 104 that acquires a digital broadcast area and acquires program information in the digital broadcast area from the program information determination unit 103 is provided. The information center 2 includes an information output unit 105 for transmitting information to the communication terminal 16 of the mobile device 1 by wireless communication.

  Specifically, when the vehicle route information is input from the arithmetic processing unit 104, the broadcast area determination unit 102 determines whether the coordinates specified by the input vehicle route information belong to the base station or the relay station. Information relating to a large number of digital broadcast areas classified by the station is extracted from the broadcast area information database 106 stored as coordinates partitioned into the digital broadcast areas, and is output to the arithmetic processing unit 104.

  In addition, when the information on the digital broadcast area determined by the broadcast area determination unit 102 is input via the arithmetic processing unit 104, the program information determination unit 103 receives, for example, the current viewing program by the user and the digital broadcast area. Receiving data, programs that can be viewed by the user and information on receivable data are extracted from the program information database 107 that stores information on programs that can be viewed and data that can be received for each digital broadcasting area. The data is output to the processing unit 104.

  Then, the arithmetic processing unit 104 uses the information on the receivable program and received data in the digital broadcast area determined by the program information determination unit 103 as program information, and information on the digital broadcast area determined by the broadcast area determination unit 102 At the same time, the information is transmitted by wireless communication to the communication terminal 16 of the mobile device 1 via the information output unit 105.

(Program viewing / data reception processing)
Next, program viewing / data reception processing in the mobile device 1 used in the mobile digital broadcast receiving system of the present embodiment will be described. FIG. 3 is a flowchart showing the program viewing / data reception processing operation in the mobile device 1 used in the mobile digital broadcast receiving system of this embodiment.
In FIG. 3, first, when the receiver 21 receives a broadcast wave by the digital broadcast antenna 11 (step S1), the demultiplexer 23 receives the video of the viewing program from the broadcast wave received by the digital broadcast antenna 11. Separate viewing program information such as audio data from data broadcast information such as display data information and program information (step S2).

On the other hand, the program information acquisition unit 24 acquires program information from the data broadcast information and inputs it to the EPG processor 27, and the channel selector 28 displays default video / audio / data information from the input program information. Is selected, and the viewing content synthesizer 30 synthesizes the viewing program and the data information and displays them on the digital broadcast display 31 (step S3).
Here, FIG. 4 shows an example after synthesizing the viewing program displayed on the digital broadcast display 31 and the program information. If the program information cannot be displayed at a time because it is a plurality of channels for several hours from the current time, it may be displayed over two pages.

Thereafter, the channel selector 28 determines whether or not the information display is selected by the user (step S4). If there is an information display selection by the user (YES in step S4), the channel selector 28 selects the channel according to the information display selection by the user. An instruction is given from the selector 28 to the video / audio / data decoder 29, and the viewing program / received data is displayed on the digital broadcast display 31 (step S5).
Then, the digital broadcast data storage 26 stores the current channel information as current channel information D1 (step S6).
If there is no information display selection by the user in step S4 (NO in step S4), the default viewing program / received data is displayed and the current channel information D1 is stored (step S6).

(Digital broadcasting area information and program information acquisition process on the route)
Next, a process for acquiring digital broadcast area information and program information on a route in the mobile device 1 used in the mobile digital broadcast receiving system of the present embodiment will be described. FIG. 5 is a flowchart showing an acquisition processing operation of digital broadcast area information and program information on a route in the mobile device 1 used in the mobile digital broadcast receiving system of the present embodiment.
In FIG. 5, first, the vehicle position evaluation device 41 of the navigation unit 14 evaluates the vehicle position based on the GPS data and the gyro data D2, and outputs the vehicle position data D3 (step S11).

Next, it is determined whether or not the destination has been set by the user (step S12). When the destination has been set by the user (YES in step S12), the route guidance calculator 42 determines whether or not the destination is set. Optimal route guidance information is calculated (step S13).
On the other hand, the communication data transmitter / receiver 43 generates transmission data including information such as a feature point (for example, a route change point) or a road link based on the route guidance information calculated by the route guidance calculator 42, and performs communication. Data communication with the information center 2 is performed via the communication device 51 of the terminal 16 (step S14).

  FIG. 6 shows an example of transmission data generated by the communication data transmitter / receiver 43. For example, data at feature points with respect to route guidance information such as A (Xa, Ya), B (Xb, Yb), C (Xc, Yc), D (Xd, Yd)... Shown in FIG. When generating the transmission data, it is conceivable that the transmission data is composed of the coordinate points, intersection names, area codes, etc. of all the intersection points. For example, when transmission data is generated by road links such as Link1, LinkA, Link2, LinkB, Link3, etc. shown in FIG. 6B, the transmission data is composed of all road link numbers and branch nodes. It is possible to do.

  Further, the information center 2 calculates route information based on the route guidance information transmitted, further determines digital broadcast area information on the route indicated by the route guidance information, and programs in the digital broadcast area Since the information is generated, the communication data transmitter / receiver 43 performs the data communication with the information center 2 via the communication device 51 of the communication terminal 16 and the digital broadcast area information on the route of the vehicle and the program of the digital broadcast area. Information is received and analyzed as reply data together with route information (step S15).

  Here, FIG. 7 shows an example of data received from the information center 2. For example, in the information center 2, when a plurality of digital broadcast areas such as areas 1, 2, and 3 are set for the route guidance information received from the mobile device 1, the information center 2 The time for entering the area where the areas overlap is estimated, program information for the next digital broadcast area, for example, around 2 hours is generated for that time, and the program information is returned together with the route information. Details of processing on the information center 2 side will be described later.

On the other hand, the communication data transmitter / receiver 43 receives received data received by the communication device 51 of the communication terminal 16 as route information, information on digital broadcast such as digital broadcast area information on the route, and program information in the digital broadcast area, and the like. (Step S16).
Then, the route information is processed by the route information generator 44 of the navigation unit 14 and displayed on the information display 45, and the digital broadcast area information on the route and the information related to the digital broadcast such as the program information of the digital broadcast area. Is input to the digital broadcast data generator 25 in the digital broadcast receiver 12, and the digital broadcast data generator 25 organizes and extracts program information including the digital broadcast area information (step S17), and stores the digital broadcast data. Program information D4 is stored in the container 26 (step S18).

In addition, the communication data transmitter / receiver 43 determines whether or not the vehicle travels on a route that is not route guidance (step S19), and if the vehicle is traveling on a route that is not route guidance, the digital data already received is received. If the route guidance is significantly different from the broadcast area information (YES in step S19), the process returns to step S13, and the digital broadcast area information and the program information are updated again by data communication with the information center 2.
In step S19, as long as it does not deviate from the route guidance (NO in step S19), it is left as it is.

When updating digital broadcast area information and program information by data communication with the information center 2, the digital broadcast area information and program information determined again by the information center 2 and the already received digital broadcast area information and program information. The information amount related to communication from the information center 2 to the mobile device 1 can be reduced by updating the difference between the information center 2 and the difference before and after the change of the digital broadcast area information and the program information.
Further, even when the vehicle is traveling on a route that is out of route guidance, there is little difference between the digital broadcast area information and program information determined again by the information center 2 and the already received digital broadcast area information and program information. In this case, the amount of information related to communication from the information center 2 to the mobile device 1 can be further reduced by transmitting / receiving empty packets or transmitting / receiving data indicating no change.

  Further, in step S12, when there is no destination setting by the user even after the vehicle has started moving (NO in step S12), communication is performed as in the example of transmission / reception data in the mobile device 1 shown in FIG. The data transmitter / receiver 43 transmits simple data such as the vehicle position and direction data (traveling direction) from the mobile device 1 to the information center 2 (step S20), and the adjacent broadcast area from the information center 2 to the current broadcast area. In this case, if the program information of the adjacent broadcast area that may travel is returned, the processing from step S15 to step S19 can be executed as in the case of the destination setting by the user.

(Optimum route information acquisition process)
By the way, for example, digital broadcast area information stored in advance, program information of the digital broadcast area, route guidance information and route information obtained by the above-described digital broadcast area information and program information acquisition processing, Digital broadcast area information on the route to the ground, and data received during reception of the digital broadcast program being viewed by running the route based on the route guidance information already calculated from the program information in the digital broadcast area If it turns out that the reception of the broadcast digital data is interrupted, the reception of the digital broadcast program being viewed or the reception of the digital data of the data broadcast being received may impair user convenience. Therefore, in the mobile digital broadcast receiving system of the present embodiment, an optimum route is considered in consideration of the broadcast reception of the digital broadcast. Performs processing for acquiring broadcast, to select a route guidance information by the convenience of the user.

  Then, next, the acquisition process of the optimal path | route information in the mobile apparatus 1 utilized with the mobile digital broadcast receiving system of a present Example is demonstrated. FIG. 9 is a flowchart showing the optimum route information acquisition processing operation in the mobile device 1 used in the mobile digital broadcast receiving system of this embodiment.

In FIG. 9, first, the vehicle position evaluation device 41 of the navigation unit 14 evaluates the vehicle position based on the GPS data and the gyro data D2, and outputs the vehicle position data D3 (step S31).
Next, the route guidance calculator 42 determines whether or not the destination setting by the user has been performed (step S32), and waits for the destination setting by the user (NO in step S32).

If the destination setting by the user has been performed in step S32 (YES in step S32), the route guidance calculator 42 calculates optimum route guidance information in consideration of time or distance to the destination. Further, route search is executed from the route guidance information to calculate route information (step S33).
If the route guidance information for the same destination has already been calculated in step S13 of the digital broadcast area information and program information acquisition process on the route described above and route information has been acquired from the information center 2 in step S15, The processing from step S31 to step S33 may not be executed.

  Next, the route guidance calculator 42 determines whether or not the user is viewing a digital broadcast program or receiving digital data (step S34), and is viewing the digital broadcast program or receiving digital data. If it is (YES in step S34), whether or not to automatically set a route to a parking lot where reception of the program being viewed or digital data being acquired can be continued is indicated. It is determined whether or not guidance setting to the parking lot is performed (step S35).

  If it is determined in step S35 that the user wants to be guided to the parking lot, the route to the parking lot where reception of the program being viewed or digital data being acquired can be continued is automatically set. In the case (YES in step S35), the route guidance calculator 42 stores the vehicle position data D3, digital broadcast area information stored in the digital broadcast data storage 26, and programs in the digital broadcast area. Information, digital broadcast area information acquired from the information center 2, program information of the digital broadcast area, information on the location of the parking lot stored in the parking lot database 46, and information on the availability of digital broadcasting for each parking lot To the nearest parking lot where you can continue to receive the program you are watching or receive the digital data you are acquiring Calculating a route guidance information, and calculates the route information by performing a route search from the further route guidance information (step S36).

  Then, the route information generator 44 processes the route information to the parking lot in consideration of the reception of the digital broadcast and displays it on the information display 45 (step S37), and ends the optimum route information acquisition processing. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

  On the other hand, in step S35, the user is not set to guide the parking lot, and automatically sets the route to the parking lot where the reception of the program being viewed or the reception of the digital data being acquired can be continued. If not (NO in step S35), the route guidance calculator 42 stores the digital broadcast area information stored in advance in the digital broadcast data storage 26 and the program information in the digital broadcast area, or the information center 2. Based on the digital broadcast area information acquired from the program, and the program information of the digital broadcast area, the program based on the route guidance information already calculated can be used to receive the program being viewed or the digital data being acquired. Then, it is determined whether or not it is interrupted by leaving the current digital broadcasting area including the current location (step S38). .

  If reception of the program being viewed or reception of the digital data being acquired is interrupted in step S38 due to exit from the current digital broadcasting area including the current location (YES in step S38), route guidance is performed. The calculator 42 includes the vehicle position data D3, destination information, digital broadcast area information stored in the digital broadcast data storage 26, and program information or information stored in the digital broadcast area. Based on the digital broadcast area information acquired from the center 2 and the program information of the digital broadcast area, from the current digital broadcast area including the current location after the end time of the digital broadcast program being viewed or the digital data broadcast being acquired The route guidance information to exit and the route information obtained from the route guidance information are calculated (step 39).

  More specifically, the route information calculation example shown in FIG. 10 will be used to explain the route guidance information from the current location to the destination in consideration of the time or distance to the destination. It takes 20 [minutes] for the shortest time and 25 [minutes] for the shortest distance, but from the digital broadcast area information stored in the digital broadcast data storage 26 and the program information of the digital broadcast area, If it is determined that it takes 30 minutes to receive the middle program or the digital data being acquired, a route that requires 30 minutes to exit the broadcast area is searched, and route information is calculated.

Next, the route information generator 44 adds the route information calculated in the route guidance calculator 42 in consideration of the broadcast reception of the digital broadcast to the already acquired route information (step S40), and is automatically selected. It is determined whether or not automatic selection route setting by the user indicating whether or not to set a route is performed (step S41).
If an automatically selected route is set by the user in step S41 and the automatically selected route is set (YES in step S41), the route information generator 44 considers digital broadcast broadcast reception. The processed route information is processed and displayed on the information display 45 (step S42), and the optimum route information acquisition processing is terminated. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

  In step S38, if reception of the program being viewed or reception of digital data being acquired is not interrupted by leaving the current digital broadcasting area including the current location (NO in step S38), a route information generator 44 processes the route information based on the already calculated route guidance information and displays the route information on the information display 45 (step S43), and ends the optimum route information acquisition processing. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

On the other hand, in step S34, when a digital broadcast program is not viewed or digital data is not yet received (NO in step S34), or in step S41, the user has not performed automatic selection route setting, and automatic If the route selected in step S41 is not set (NO in step S41), the route information generator 44 presents all the route information to the information display 45 to prompt the user to select (step S44).
Then, it is determined whether or not the route information is selected by the user (step S45). When the route information is selected by the user (YES in step S45), the route information generator 44 selects the route selected by the user. The information is processed and displayed on the information display 45 (step S46), and the optimum route information acquisition process is terminated. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

  In step S45, when route information is not selected by the user (NO in step S45), the route information generator 44 determines that the user does not need navigation (route guidance), and does nothing and performs the optimum route. The information acquisition process ends. The navigation unit 14 stops navigation (route guidance) for the user.

(Digital broadcasting area information and program information judgment process)
Next, determination processing of digital broadcast area information and program information in the information center 2 used in the mobile digital broadcast receiving system of this embodiment will be described. FIG. 11 is a flowchart showing the determination processing operation of the digital broadcast area information and program information in the information center 2 used in the mobile digital broadcast receiving system of this embodiment.
In FIG. 11, first, the information input unit 101 receives vehicle route guidance information from the communication terminal 16 of the mobile device 1 (step S51).
Next, the arithmetic processing unit 104 acquires the received route guidance information from the information input unit 101, and inputs the route guidance information to the broadcast area determination unit 102 (step S52).

On the other hand, the broadcast area determination unit 102 extracts, from the broadcast area information database 106, digital broadcast area information on the route to which the coordinates specified by the input route guidance information belong, as shown in FIG. ) Determine areas 1, 2, and 3 and deliver them to the arithmetic processing unit 104 (step S53).
On the other hand, the arithmetic processing unit 104 calculates the entry / exit times for the digital broadcast area determined by the broadcast area determination unit 102, and inputs them to the program information determination unit 103 together with the digital broadcast area information (step S54).

Then, the program information determination unit 103 determines whether the time zone includes a certain range for the entry / exit time, for example, a range of 2 hours before and after, based on the input digital broadcast area information and the entry / exit time for the digital broadcast area. The program information of the digital broadcast area to be acquired is acquired from the program information database 107, generated as a list, and delivered to the arithmetic processing unit 104 (step S55). The program information referred to here includes information on receivable data in addition to information on programs that can be viewed in the corresponding digital broadcasting area.
The arithmetic processing unit 104 returns the acquired digital broadcast area information and program information in the digital broadcast area to the communication terminal 16 of the mobile device 1 that has received the route guidance information via the information output unit 105. (Step S56).

  In the digital broadcast area information and program information acquisition process on the route of this embodiment, route guidance information (route information) is calculated in the navigation unit 14 of the mobile device 1, and in the optimum route information acquisition process. In addition to the route guidance information (route information), the route information is also calculated in the navigation unit 14 of the mobile device 1. For example, as in the example of transmission / reception data in the mobile device 1 shown in FIG. 1, only simple data such as the vehicle position and direction data (traveling direction) and destination data are transmitted to the information center 2 via the communication terminal 16, and the information center 2 side is provided with a map information database. The calculation processing unit 104 of the center 2 considers the situation such as traffic jams, the optimum route search taking into account weather information, or the reception of digital broadcasts. It may perform the optimum route search.

  Specifically, when the situation such as traffic jam is taken into account, the route search considering the situation such as the traffic jam can be performed by obtaining the traffic jam information by linking an external traffic information database to the arithmetic processing unit 104. It becomes possible. In addition, if the weather condition is acquired by linking an external weather information database to the arithmetic processing unit 104, the arithmetic processing unit 104 takes into account the weather condition between the current location of the vehicle and the destination. It is also possible to perform a search.

  In addition, when performing an optimum route search in consideration of the broadcast reception of the digital broadcast of the mobile device 1 on the information center 2 side, the mobile device 1 is viewing or wishing to view the mobile device 1 from the information center 2. Information regarding a digital broadcast program or a data broadcast program being received or desired to be received is transmitted.

  Further, when the information center 2 side searches for a route to the parking lot in consideration of digital broadcast reception, selection information indicating whether or not the user desires to guide the parking lot is sent from the mobile device 1 to the information center 2. In the above description, the parking lot database 46 provided in the mobile device 1 is provided in the information center 2, and when the user desires guidance to the parking lot, the arithmetic processing unit 104 performs digital broadcasting. Route guidance information and route information to a parking lot in consideration of broadcast reception shall be calculated.

  When performing a route search on the information center 2 side, the calculated route guidance information and route information from the information center 2 to the mobile device 1, digital broadcast area information on the route to the destination, and the digital broadcast area It is assumed that data to which program information is added is transmitted. The mobile device 1 performs navigation (route guidance) for the user based on route information acquired from the information center 2.

  Moreover, in the acquisition process of the optimal route information of a present Example, after acquiring the optimal route information in consideration of the broadcast reception of digital broadcasting, the navigation unit 14 performs navigation (route guidance) for the user according to the acquired route information. As described above, after the navigation unit 14 starts navigation (route guidance) based on route information in consideration of time or distance to the destination, digital broadcast program reception or data broadcast digital data reception starts. If it is, the optimum route information considering digital broadcast broadcast reception is calculated based on the remaining time of digital broadcast program reception or data broadcast digital data reception, and the navigation unit 14 starts the digital broadcast from that point of time. Follow the route information considering the broadcast reception of Geshon may be switched to (route guidance).

  Moreover, in the above-mentioned Example, the process of step S35 of the acquisition process of the optimal route information performed with the mobile body apparatus 1 is equivalent to the guidance wish determination means which determines the presence or absence of the guidance request to a parking lot by a user. .

  As described above, according to the mobile digital broadcast receiving system of the present embodiment, the route guidance calculator 42 provides information on the current location output by the vehicle position evaluation device 41 and information on the destination set by the user. Based on the digital broadcast area information stored in the digital broadcast data storage 26 and the program information (digital broadcast program information) in the digital broadcast area, the reception of the received program received by the digital broadcast receiver 12 can be continued. By calculating the route information to the parking lot or the route information leaving the digital broadcast area including the current location after the end time of the received program received by the digital broadcast receiver 12, the navigation unit 14 gives the user Route guidance to a parking lot where the reception of a received program received by the digital broadcast receiver 12 can be continued, or a digital broadcast receiver 2 is being broadcast reception program received, it is possible to perform a route guidance that stays the received program can be received digital broadcast area.

  Therefore, when the user follows the route guidance, the vehicle equipped with the mobile device 1 stops at the parking lot during the broadcast of the received program received by the digital broadcast receiver 12, or the vehicle equipped with the mobile device 1 A mobile device 1 and a mobile digital broadcast receiving system that remain in the digital broadcast area, complete reception of the received program without interruption, and provide information to the user, thereby improving user convenience. The effect that it is realizable is acquired. Thereby, the user can move without worrying about interruption of reception of the received program.

  Also, the digital broadcast area information stored in the digital broadcast data storage 26 and the program information (digital broadcast program information) in the digital broadcast area can be updated as necessary based on the moving route information. As a result, the size of the digital broadcast data storage 26 can be reduced. Specifically, for example, the digital broadcast area information and the digital broadcast program information stored in the digital broadcast data storage 26 are set as one minimum necessary digital broadcast area information and its digital broadcast program information. When moving between digital broadcast areas, the size of the digital broadcast data storage 26 is minimized by updating the digital broadcast area information and the digital broadcast program information stored in the digital broadcast data storage 26 each time. Thus, the mobile device 1 can be reduced in size and cost can be achieved. Furthermore, when the route guidance information and the route information are calculated on the information center 2 side, the burden on the mobile device 1 is reduced, and the mobile device 1 is reduced in size, power saving, and cost reduction. The effect that it can be obtained.

  Next, a second embodiment of the present invention will be described. In the above-described first embodiment, for example, during the reception of a viewing program or digital data by running a route based on the route guidance information already calculated in step S13 of the digital broadcast area information and program information acquisition processing on the route. The case has been described in which the reception of the digital broadcast program being viewed or the reception of the digital data of the data broadcast being received is interrupted because the user has left the digital broadcast area. A case will be described in which the reception of the digital broadcast program being viewed or the reception of the digital data of the data broadcast being received does not end by the traveling of the route based on the calculated route guidance information.

  The configuration of the mobile device 1 in this embodiment, the configuration of the information center 2, the acquisition process of the digital broadcast area information and program information on the route in the mobile device 1, the digital broadcast area information and program information in the information center 2 Since the determination process is the same as that of the first embodiment, the description thereof is omitted here.

(Optimum route information acquisition process)
Next, the optimum route information acquisition process in the mobile device 1 used in the mobile digital broadcast receiving system of the present embodiment will be described. FIG. 13 is a flowchart showing the optimum route information acquisition processing operation in the mobile device 1 used in the mobile digital broadcast receiving system of this embodiment.

In FIG. 13, first, the vehicle position evaluation device 41 of the navigation unit 14 evaluates the vehicle position based on the GPS data and the gyro data D2, and outputs the vehicle position data D3 (step S61).
Next, the route guidance calculator 42 determines whether or not the destination setting by the user has been performed (step S62), and waits for the destination setting by the user (NO in step S62).

In addition, when the destination is set by the user in step S62 (YES in step S62), the route guidance calculator 42 calculates optimum route guidance information in consideration of time or distance to the destination. Further, route search is executed from the route guidance information to calculate route information (step S63).
If the route guidance information for the same destination is already calculated in step S13 of the digital broadcast area information and program information acquisition process on the route described above, and the route information is acquired from the information center 2 in step S15, The processing from step S61 to step S63 may not be executed.

  Next, the route guidance calculator 42 determines whether the user is viewing a digital broadcast program or receiving digital data (step S64), and is viewing the digital broadcast program or receiving digital data. If it is (YES in step S64), parking by the user indicating whether or not to automatically set a route to a parking lot where the reception of the program being viewed or the reception of the digital data being acquired can be continued. It is determined whether or not guidance setting to the parking lot has been performed (step S65).

  If it is determined in step S65 that the user wants to guide the user to the parking lot, the route to the parking lot where reception of the program being viewed or digital data being acquired can be continued is automatically set. In this case (YES in step S65), the route guidance calculator 42 stores the vehicle position data D3, digital broadcast area information stored in advance in the digital broadcast data storage 26, and programs in the digital broadcast area. Information, digital broadcast area information acquired from the information center 2, program information of the digital broadcast area, information on the location of the parking lot stored in the parking lot database 46, and information on the availability of digital broadcasting for each parking lot To the nearest parking lot where you can continue to receive the program you are watching or receive the digital data you are acquiring Calculating a route guidance information, and calculates the route information by performing a route search from the further route guidance information (step S66).

  Then, the route information generator 44 processes the route information to the parking lot considering the reception of the digital broadcast and displays it on the information display 45 (step S67), and ends the optimum route information acquisition process. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

  On the other hand, in step S65, the user has not set the guidance to the parking lot, and automatically sets the route to the parking lot where the program being viewed or the digital data being acquired can be continuously received. If not (NO in step S65), the route guidance calculator 42 stores the digital broadcast area information stored in the digital broadcast data storage 26 and the program information in the digital broadcast area, or the information center 2 stored in advance. Based on the digital broadcast area information acquired from the program, and the program information of the digital broadcast area, the program based on the route guidance information already calculated can be used to receive the program being viewed or the digital data being acquired. Then, it is determined whether or not to end by the arrival at the destination (step S68).

  If the reception of the program being viewed or the reception of the digital data being acquired does not end in step S68 until the destination is reached (NO in step S68), the route guidance calculator 42 determines the position of the vehicle. Data D3, destination information, prestored digital broadcast area information stored in the digital broadcast data storage 26, program information of the digital broadcast area, or digital broadcast area acquired from the information center 2 Information and route guidance information arriving at the destination after the end time of the digital broadcast program being viewed or the digital data broadcast being acquired based on the program information of the digital broadcast area, and route information obtained from the route guidance information Is calculated (step S69).

Next, the route information generator 44 adds the route information calculated in the route guidance calculator 42 considering the broadcast reception of the digital broadcast to the already acquired route information (step S70), and is automatically selected. It is determined whether or not automatic selection route setting by the user indicating whether or not to set a route is performed (step S71).
If automatic selection route setting is performed by the user in step S71 and the automatically selected route is set (YES in step S71), the route information generator 44 considers the broadcast reception of the digital broadcast. The processed route information is processed and displayed on the information display 45 (step S72), and the optimum route information acquisition processing is terminated. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

  Further, in step S68, when reception of the program being viewed or reception of the digital data being acquired ends before reaching the destination (YES in step S68), the route information generator 44 has already been calculated. The route information based on the route guidance information is processed and displayed on the information display 45 (step S73), and the optimum route information acquisition processing is terminated. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

On the other hand, in step S64, when a digital broadcast program is not viewed or digital data is not yet received (NO in step S64), or in step S71, the user does not set the automatic selection route, and thus the automatic selection is not performed. If the route selected at step S71 is not set (NO at step S71), the route information generator 44 presents all the route information to the information display 45 to prompt the user to select (step S74).
Then, it is determined whether or not the route information is selected by the user (step S75). When the route information is selected by the user (YES in step S75), the route information generator 44 selects the route selected by the user. The information is processed and displayed on the information display 45 (step S76), and the optimum route information acquisition process is terminated. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

  In step S75, when route information is not selected by the user (NO in step S75), the route information generator 44 determines that the user does not need navigation (route guidance), and does nothing and performs the optimum route. The information acquisition process ends. The navigation unit 14 stops navigation (route guidance) for the user.

  Also in this embodiment, similarly to the first embodiment, the route guidance information (route information) and the calculation of route information are not executed in the navigation unit 14 of the mobile device 1, and the arithmetic processing unit of the information center 2 is used. You may make it perform in 104.

  In the optimum route information acquisition process of the present embodiment, the navigation unit 14 performs navigation (route guidance) for the user according to the obtained route information after obtaining the optimum route information in consideration of the digital broadcast broadcast reception. As described in the first embodiment, after the navigation unit 14 starts navigation (route guidance) based on route information in consideration of time or distance to the destination, the digital broadcast program reception, Alternatively, when digital data reception of data broadcasting is started, optimal route information considering digital broadcast broadcast reception is calculated based on the remaining time of digital broadcast program reception or data broadcast digital data reception, and navigation Unit 14 considers digital broadcast reception from that point It may be switched to the navigation (route guidance) according to the route information.

  Moreover, in the above-mentioned Example, the process of step S65 of the acquisition process of the optimal route information performed with the mobile body apparatus 1 is corresponded to the guidance desire determination means which determines the presence or absence of the guidance request to a parking lot by a user. .

  As described above, according to the mobile digital broadcast receiving system of the present embodiment, the route guidance calculator 42 provides information on the current location output by the vehicle position evaluation device 41 and information on the destination set by the user. Based on the digital broadcast area information stored in the digital broadcast data storage 26 and the program information (digital broadcast program information) in the digital broadcast area, the reception of the received program received by the digital broadcast receiver 12 can be continued. By calculating the route information to the parking lot or the route information arriving at the destination after the end time of the received program received by the digital broadcast receiver 12, the navigation unit 14 gives the user a digital broadcast receiver. Route guidance to a parking lot where reception of the received program received by the digital broadcast receiver 12 can be continued, or release of the received program received by the digital broadcast receiver 12 In, it is possible to perform the route guidance as to move towards the destination while receiving the received program.

  Therefore, when the user follows the route guidance, the vehicle equipped with the mobile device 1 stops at the parking lot during the broadcast of the received program received by the digital broadcast receiver 12, or the vehicle equipped with the mobile device 1 Mobile device that moves to the destination while receiving digital broadcasts, completes reception of the received program before arrival without interruption, and completes provision of information to the user, improving the convenience of the user 1 and the effect that a mobile digital broadcast receiving system can be realized. As a result, the user can move without worrying about the interruption of reception of the received program, obtain information until the destination arrives, and be prepared thereafter.

  Similarly to the first embodiment, the digital broadcast area information stored in the digital broadcast data storage 26 and the program information of the digital broadcast area (digital broadcast program information) are required based on the moving route information. Since it can be updated accordingly, the size of the digital broadcast data storage 26 can be kept to a minimum, and the mobile device 1 can be reduced in size and cost. An effect is obtained. Furthermore, when the route guidance information and the route information are calculated on the information center 2 side, the burden on the mobile device 1 is reduced, and the mobile device 1 is reduced in size, power saving, and cost reduction. The effect that it can be obtained.

  Next, a third embodiment of the present invention will be described. In the first and second embodiments described above, based on the set destination information, first, optimum route guidance information and route information considering the time or distance to the destination are obtained, and the route travels. If the reception of the digital broadcast program being viewed or the reception of the digital data of the data broadcast being received is interrupted or does not end before reaching the destination, a route that takes the digital broadcast broadcast reception into account again Although the case of obtaining the guidance information and the route information has been described, in the third embodiment, the case of obtaining the route guidance information and the route information in consideration of digital broadcast reception from the beginning will be described.

  Note that the configuration of the mobile device 1 and the configuration of the information center 2 in the present embodiment are the same as those in the first embodiment, and a description thereof will be omitted here. The digital broadcast area information and program information acquisition process on the route in the mobile device 1 and the digital broadcast area information and program information determination process in the information center 2 are stored in the digital broadcast data storage 26 of the mobile device 1. If the digital broadcast area information covering the area from the current location to the destination and the program information in the digital broadcast area are already stored, it is not always necessary to execute.

On the other hand, as in the first and second embodiments, the digital broadcast area information stored in the digital broadcast data storage 26 and the program information (digital broadcast program information) in the digital broadcast area are based on the moving route information. When updating is performed as necessary, the digital broadcast area information and program information acquisition process on the route in the mobile device 1 described in the first embodiment, and the digital broadcast area information and program in the information center 2 are acquired. Information determination processing may be executed.
The route guidance information and the route information may be acquired at least according to the following procedure.

(Optimum route information acquisition process)
Next, the optimum route information acquisition process in the mobile device 1 used in the mobile digital broadcast receiving system of the present embodiment will be described. FIG. 14 is a flowchart showing the optimum route information acquisition processing operation in the mobile device 1 used in the mobile digital broadcast receiving system of this embodiment.

In FIG. 14, first, the vehicle position evaluation device 41 of the navigation unit 14 evaluates the vehicle position based on the GPS data and the gyro data D2, and outputs the vehicle position data D3 (step S81).
Next, the route guidance calculator 42 determines whether or not the destination setting by the user has been performed (step S82), and waits for the destination setting by the user (NO in step S82).

Further, when the destination has been set by the user in step S82 (YES in step S82), the route guidance calculator 42 has made the information display selection by the user via the channel selector 28. It is determined whether or not (step S83), and the user waits for information display selection to be performed (NO in step S83).
If the information display selection by the user is made in step S83 (YES in step S83), the information stored in the digital broadcast data accumulator 26 is stored in advance based on the information display selection by the user. Digital broadcast area information and program information in the digital broadcast area, digital broadcast area information acquired from the information center 2 and program information in the digital broadcast area selected from the digital broadcast area desired to be received, or Digital broadcast area information relating to the digital data of the selected data broadcast desired to be received is acquired (step S84).

Next, the route guidance calculator 42 indicates whether or not to automatically set a route to a parking lot where the selected program can be received or the selected digital data can be received. It is determined whether or not the guidance request setting has been performed (step S85).
If, in step S85, the user wants to guide the user to the parking lot, and automatically sets the route to the parking lot where the selected program can be received or the selected digital data can be received. (YES in step S85), the route guidance calculator 42 includes the own vehicle position data D3, the digital broadcast area information relating to the selected digital broadcast program desired to be received or the selected digital data desired to be received. Based on the location information of the parking lot stored in the parking lot database 46 and the information on the availability of digital broadcasting for each parking lot, the reception of the selected program or the selected digital data Calculate route guidance information to a parking lot that can be received, and further perform route search from the route guidance information to calculate route information Step S86).

  Then, the route information generator 44 processes the route information to the parking lot in consideration of the reception of the digital broadcast and displays it on the information display 45 (step S87), and ends the optimum route information acquisition processing. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

  On the other hand, in step S85, the user has not set the guidance request to the parking lot, and does not automatically set the route to the parking lot where the selected program can be received or the selected digital data can be received. In the case (NO in step S85), the route guidance calculator 42 includes the own vehicle position data D3, destination information, digital broadcast area information stored in advance in the digital broadcast data accumulator 26, and After the end time of the selected digital broadcast program or the selected digital data broadcast based on the program information of the digital broadcast area or the digital broadcast area information acquired from the information center 2 and the program information of the digital broadcast area Route guidance information to exit from the current digital broadcasting area including the current location, and the route obtained from the route guidance information Information received, route guidance information arriving at the destination after the end time of the selected digital broadcast program or selected digital data broadcast, and route information obtained from the route guidance information, in consideration of broadcast reception It calculates as route guidance information and route information (step S88). Note that which route guidance information and the route information obtained from the route guidance information in step S88 may be selected by the user in advance.

Next, the route information generator 44 determines whether or not automatic selection route setting is performed by the user, which indicates whether or not the route selected automatically is set (step S89).
If the automatically selected route is set by the user in step S89 and the automatically selected route is set (YES in step S89), the route information generator 44 considers the broadcast reception of the digital broadcast. The route information thus processed is displayed on the information display 45 (step S90), and the optimum route information acquisition processing is terminated. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

On the other hand, in step S89, if the user does not set the automatically selected route and does not set the automatically selected route (NO in step S89), the route information generator 44 displays the calculated route information. The information is displayed on the information display 45 to prompt user approval (step S91).
Then, it is determined whether or not the route information is approved by the user (step S92). When the route information is approved by the user (YES in step S92), the route information generator 44 determines the route selected by the user. The information is processed and displayed on the information display 45 (step S93), and the optimum route information acquisition process is terminated. Then, the navigation unit 14 starts navigation (route guidance) for the user according to the route information displayed on the information display 45.

  In step S92, if the route information is not approved by the user (NO in step S92), the route information generator 44 determines that the user does not need navigation (route guidance), and does nothing and performs the optimum route. The information acquisition process ends. The navigation unit 14 stops navigation (route guidance) for the user.

  Also in the third embodiment described above, similarly to the first and second embodiments, the route guidance information (route information) and the calculation of route information are not executed in the navigation unit 14 of the mobile device 1. You may make it perform in the arithmetic processing part 104 of the information center 2. FIG.

  Moreover, in the above-mentioned Example, the process of step S85 of the acquisition process of the optimal route information performed with the mobile body apparatus 1 is equivalent to the guidance desire determination means which determines the presence or absence of the guidance request to a parking lot by a user. .

  As described above, according to the mobile digital broadcast receiving system of the present embodiment, the route guidance calculator 42 receives the destination information initially set by the user and the reception request selected by the user. Information on the digital broadcast program or information on the digital data of the selected data broadcast desired to be received is acquired and stored in the digital broadcast data accumulator 26 and the information on the current location output from the vehicle position evaluation device 41. Route information to a parking lot that can receive the selected digital broadcast program and the selected data broadcast digital data based on the digital broadcast area information and the program information of the digital broadcast area (digital broadcast program information); Or, digital data including the current location after the end time of the selected digital broadcast program or selected data broadcast digital data. The navigation unit 14 uses the route information to exit from the broadcast area or the route information arriving at the destination after the end time of the selected digital broadcast program or the selected data broadcast digital data. It is possible to perform route guidance for a person who continues to receive the received program during broadcasting of the received program received by the digital broadcast receiver 12.

  Therefore, it is possible to efficiently calculate route guidance information and route information considering digital broadcast broadcast reception in a short time without executing multiple route searches, and when the user follows the route guidance, the digital broadcast receiver During the broadcast of the received program received by the mobile terminal 12, the reception of the received program is completed without interruption, and the provision of information to the user is also completed, and the mobile device 1 that improves the convenience for the user and the mobile digital broadcast reception The effect that a system is realizable is acquired. As a result, the user can move without worrying about the interruption of reception of the received program, obtain information until the destination arrives, and be prepared thereafter.

  Similarly to the first and second embodiments, the digital broadcast area information stored in the digital broadcast data storage 26 and the program information (digital broadcast program information) of the digital broadcast area are based on the moving route information. If updated as necessary, the mobile device 1 can be reduced in size and cost. Furthermore, when the route guidance information and the route information are calculated on the information center 2 side, the burden on the mobile device 1 is reduced, and the mobile device 1 is reduced in size, power saving, and cost reduction. The effect that it can be obtained.

It is a block diagram which shows the structure of the mobile body apparatus utilized with the mobile body digital broadcast receiving system of 1st Example of this invention. It is a block diagram which shows the structure of the information center utilized with the mobile digital broadcast receiving system of the Example. It is a flowchart which shows the program viewing / data reception processing operation in the mobile device used in the mobile digital broadcast receiving system of the embodiment. It is a figure which shows the example after the synthesis | combination of the viewing program and program information which are displayed on the digital display of a mobile device. It is a flowchart which shows the acquisition processing operation | movement of the digital broadcast area information and program information on a path | route in the mobile apparatus utilized with the mobile digital broadcast receiving system of the Example. It is a figure which shows the example of transmission data produced | generated by the communication data transmitter / receiver of a mobile device. It is a figure which shows the example of reception data from an information center. It is a figure which shows the example of transmission / reception data in a mobile device. It is a flowchart which shows the acquisition process operation | movement of the optimal path | route information in the mobile apparatus utilized with the mobile digital broadcast receiving system of the Example. It is a figure which shows the example of calculation of the route information in a mobile device. It is a flowchart which shows the determination processing operation | movement of the digital broadcast area information and program information in the information center utilized with the mobile digital broadcast receiving system of the Example. It is a figure which shows the example of transmission / reception data in a mobile device. It is a flowchart which shows the acquisition process operation | movement of the optimal path | route information in the mobile body apparatus utilized with the mobile body digital broadcast receiving system of a 2nd Example. It is a flowchart which shows the acquisition process operation | movement of the optimal path | route information in the moving body apparatus utilized with the moving body digital broadcast receiving system of a 3rd Example.

Explanation of symbols

1 Mobile device (mobile)
2 Information Center 12 Digital Broadcasting Receiver 14 Navigation Unit (Route Guide)
16 Communication terminal 26 Digital broadcast data storage (storage means, broadcast information storage means)
41 Own vehicle position evaluation device (position evaluation means)
42 Route guidance calculator (route calculation means)
46 Parking lot database (parking lot information storage means)
S35, S65, S85 Guidance request determination means

Claims (4)

A mobile digital broadcast receiving system having a mobile body and an information center,
The moving body is
A communication terminal that communicates with the outside,
A location assessment means to assess the current location;
Route calculating means for calculating route information for moving;
Parking information storing means for storing parking information;
A guidance request determination means for determining whether the user wishes to guide the parking lot,
Broadcast information storage means for acquiring and storing digital broadcast area information and digital broadcast program information from the information center via the communication terminal;
A digital broadcast receiver for receiving digital broadcasts;
Route guidance means for performing route guidance based on the route information,
When the route calculation means has a desire to guide the user to the parking lot, the current location information output from the location assessment means, the destination information, the digital broadcast area information, the digital broadcast program information, And a mobile digital broadcast reception characterized in that route information from the current location of the mobile body to a parking lot capable of continuously receiving a received program received by the digital broadcast receiver is calculated based on the parking lot information. system. A location assessment means to assess the current location;
A digital broadcast receiver for receiving digital broadcasts;
A guidance request determination means for determining whether the user wishes to guide the parking lot,
Transmitting means for transmitting to the information center information on the current location output by the position rating means, information on the received program received by the digital broadcast receiver, and selection information indicating whether or not the user desires to guide the parking lot; ,
When there is a user's request for parking to the parking lot, based on the current location information, the received program information, and the digital broadcasting area information and digital broadcasting program information that the information center has, and the parking lot information Receiving means for receiving route information calculated from the current location to the parking lot where the received program received by the digital broadcast receiver can be continuously received;
A moving body comprising route guidance means for performing route guidance based on the route information. Information on the current location of the mobile body, information on received programs received by the mobile body, and whether or not the user wishes to be guided to the parking lot from a mobile body having route guidance means for performing route guidance based on the route information Receiving means for receiving selection information indicating
Parking information storing means for storing parking information;
Broadcast information storage means for storing digital broadcast area information and digital broadcast program information;
Route calculating means for calculating route information for moving the moving body;
An information center comprising: transmission means for transmitting the route information calculated by the route calculation means to the mobile body;
When the route calculation means is requested to guide the user to the parking lot, the current location information, the received program information, the digital broadcast area information, the digital broadcast program information, and the parking lot information Based on the information center, the route information from the current location of the mobile body to the parking lot where the received program received by the digital broadcast receiver can be continuously received is calculated. A mobile digital broadcast receiving system having a mobile body and an information center,
The moving body is
A location assessment means to assess the current location;
A digital broadcast receiver for receiving digital broadcasts;
A guidance request determination means for determining whether the user wishes to guide the parking lot,
Transmitting means for transmitting to the information center information on the current location output by the position rating means, information on the received program received by the digital broadcast receiver, and selection information indicating whether or not the user desires to guide the parking lot; ,
Receiving means for receiving route information for moving from the information center;
Route guidance means for performing route guidance based on the route information,
The information center is
Receiving means for receiving from the mobile body information on the current location of the mobile body, information on a received program received by the mobile body, and selection information indicating whether or not a user desires to be guided to a parking lot;
Parking information storing means for storing parking information;
Broadcast information storage means for storing digital broadcast area information and digital broadcast program information;
Route calculating means for calculating route information for moving the moving body;
Transmission means for transmitting the route information calculated by the route calculation means to the mobile body,
When the route calculation means is requested to guide the user to the parking lot, the current location information, the received program information, the digital broadcast area information, the digital broadcast program information, and the parking lot information Based on this, the mobile digital broadcast receiving system calculates the route information from the present location of the mobile to the parking lot where the received program received by the digital broadcast receiver can be continuously received.

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