JP2003143642A - Provided information receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information receiver that automatically reads and stores in advance required provided information by applying efficient filtering to provided information so as to easily and pleasantly acquire useful information. SOLUTION: The information receiver 10 which is moved with a user, receives a data broadcast program from a broadcast satellite 1 or the like and displays the received program on a monitor 23, is provided with: a position information processing section 18 that uses a GPS section 17 to receive GPS data from a GPS satellite 3; and an advance read storage processing section 20 that predicts an area in a traveling direction from a locus of own position information and performs filtering to select provided information of a data broadcast program including the position information in its area and filtering to select the provided information corresponding to genre information in a genre information storage section 19 to store the selected provided information, and displays stored provided information on a monitor 23 together with the video image of the data broadcast program according to an input instruction by a user.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an additional information receiving device, and more specifically, to a device that can prefetch and store only useful information in a usable manner among information provided to an unspecified number of persons. Regarding

[0002]

2. Description of the Related Art In data broadcasting currently being carried out by BS digital broadcasting, a service for sending out common information, for example, news, weather, etc., is provided for fixed reception with one area throughout Japan. .

In addition, on the Internet that can be used with mobile phones, from the position information of the base station of the mobile phone of the recipient,
In response to a request from a recipient, a service is provided in which information about the surrounding area is provided by bidirectional communication.

[0006] Such an additional information receiving device that can use data broadcasting and the Internet can obtain useful additional information by receiving the additional information as needed, and display and output the information. By doing
The provided information can be used effectively.

[0005]

However, in the current data broadcasting of BS digital broadcasting, the whole area of Japan is defined as one area, and therefore detailed information for each area is not transmitted and the location of the receiver is not transmitted. There is no service that provides information linked to.

Further, the conventional provided information receiving apparatus for receiving the data broadcast cannot partially receive only the necessary information from the information contained in the data broadcast of the digital broadcast.

From this, it is conceivable that the provided information receiving apparatus receives and decodes all the information of the program (channel) of the broadcasting station to be received, extracts all the information, and extracts the necessary information. However, there is a problem that it may take a long time to receive the desired provided information and the user may not be able to use it comfortably.

Further, data broadcasting of terrestrial digital broadcasting to be started in the future is basically based on prefectural broadcasting. However, if the amount of information is large, the transmission cycle of repeatedly broadcasted information becomes long, and the details for each region are detailed. It takes time to receive such information even in the prefecture area, and similarly, there is a problem that it may not be possible to use it comfortably.

On the other hand, in the provided information receiving device such as a mobile phone using the Internet, the information filtering technique using the position information is used to detect the vicinity of the current position of the user (receiver) or the input destination. There is also a service that provides necessary information by extracting (selecting) only information.

However, the provided information via the Internet cannot be obtained unless the desired area, for example, the destination is input, and the desired provided information is designated each time. There was a problem that the input operation to (select) had to be performed.

Therefore, the present invention realizes efficient filtering processing of the provided information in consideration of the user's traveling direction and hobbies and preferences, so that the necessary provided information is automatically prefetched and accumulated to provide a useful offer. An object of the present invention is to provide a provided information receiving device that can obtain information comfortably and easily.

[0012]

[Means for Solving the Problems] First to solve the above problems
Of the invention, an information receiving means for receiving the provided information transmitted including the specific position information in order to provide information for allowing an unspecified number of people to use at a specific position, and the information. An additional information receiving device, comprising: an information storage unit that readably stores the additional information received by the receiving unit, the position acquiring unit acquiring the position information of the user, and the position information acquiring unit acquiring the position information. A moving direction predicting means for predicting a moving direction of the user, and an information selecting means for selecting the provided information accumulated in the information accumulating means based on the moving direction predicted by the moving direction predicting means,
Is provided.

A second invention for solving the above problems is as follows.
In addition to the specific items of the first invention, the acquisition interval of the position information of the user acquired to predict the direction in which the user moves and the number of acquisitions of the position information of the user in the past including the current time And a moving direction predicting unit predicts a moving direction of the user based on the position information of the set number of users acquired at the setting interval by the position acquiring unit. It is what

In the present invention, for example, the direction of movement of the user is predicted (or simply forward) from the position information indicating the route the user has traveled so far. Provided information that can be used at a specific position in the moving direction is selected and stored in a readable manner. Therefore, rather than extracting desired provision information from all of the provision information, the provision information can be efficiently filtered in the direction in which the provision information moves, and the available provision information can be concentrated and stored.

In a third invention for solving the above-mentioned problems, in addition to the specific items of the first or second invention, the moving direction predicting means is a temporary user whose position information is acquired by the position acquiring means. Predicting a destination area, and the information selecting means performs selection of the provided information received by the information receiving means based on the temporary destination area predicted by the moving direction predicting means and accumulation in the information accumulating means. It is characterized by.

According to the present invention, the temporary destination area which the user will reach after a certain period of time is predicted,
The provision information that can be used at a specific position within the temporary destination area is selected and stored in a readable manner. Therefore, the provided information can be filtered more efficiently in the area to be reached, and the available provided information can be narrowed down and stored in a narrower range.

A fourth invention for solving the above-mentioned problems is to provide a type setting means for setting the type of the provided information according to the user in addition to the specific items of the first to third inventions,
The information selection means is characterized in that, as the provision information to be stored in the information storage means, the provision information corresponding to the type set by the type setting means is also selected.

In the present invention, the user's hobbies and preferences,
By setting in advance the type of provided information that is likely to be used by the user, the provided information is limited to the set type in addition to the direction in which the user is moving and the temporary destination area. (Selected) and stored readably.
Therefore, the provided information can be more efficiently filtered under the condition more suitable for the user, and the available provided information can be narrowed down according to the user and accumulated.

[0019]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings. 1 to 3 are views showing a first embodiment of a provided information receiving apparatus according to the present invention.

In FIG. 1 and FIG. 2, the provided information receiving apparatus 10 is mounted so that it can be used by, for example, attaching the apparatus main body 10A to a vehicle and operating a user input unit 10B such as a remote controller for broadcasting. Stores, restaurants, etc. that receive satellite / terrestrial digital data broadcasts from the satellite 1 or terrestrial base station 2 and output video and audio information, etc., and are sent out at fixed intervals as one of the broadcast contents of the data broadcast. Information and traffic information and other provided information including position information such as latitude and longitude and summary information thereof (for example, product / service contents, photographs, maps, etc.) and output. Here, the information including the position information in the data broadcast is encoded in XML (eXtensible Markup Language), for example, as described later. In the present embodiment, the provided information receiving device 1
0 will be described as a type that is divided into an apparatus main body 10A and a user input unit 10B and mounted on a vehicle or the like, but is not limited to this, and it may be an integrated type, or can be carried like a mobile phone. It goes without saying that it may be a device.

The provided information receiving device 10 is provided with a plurality of GPs.
I want to receive GPS data sent from each S (Global Positioning System) satellite 3 to obtain own position information (latitude / longitude information), and to obtain genre information such as hobbies and preferences according to the user. The type of the provided information can be set and input, and the received provided information can be selectively displayed based on the position information and genre information of the user.

Specifically, the provided information receiving apparatus 10 includes an antenna (information receiving means) 11 and a front end section 12.
A transstream processing buffer unit 13, a memory 14, a video / audio / caption decoding processing unit 15, a data broadcasting decoding processing unit 16, a GPS unit (position acquisition means) 17, a position information processing unit 18, The apparatus main body 10A is configured by the genre information storage unit 19, the prefetch accumulation processing unit 20, the data broadcast display processing unit 21, the synthesizing unit 22, the monitor 23, and the speaker 24.

Transstream processing buffer unit 13
Is adapted to receive the above-mentioned data broadcast received signal received by the antenna 11 after being tuned and demodulated by the front end unit 12 and output it as a transport stream (TS). The video / audio / caption decoding processing unit 15 and the data broadcasting decoding processing unit 16 are caused to perform processing via 14 (while temporarily storing).

The video / audio / subtitle decoding processing section 15
The decoding information such as video / audio / caption information in the transport stream is sent to the synthesizing unit 22, and the data broadcast decoding processing unit 16 outputs the decoding information for displaying the provided information in the data broadcast in the transport stream. The data broadcast display processing unit 21 and the data broadcast decoding processing unit 16 send the decode information of the provided information of the data broadcast in the transport stream to the prefetch accumulation processing unit 20.

The GPS unit 17 is adapted to receive GPS data from a plurality of GPS satellites and acquire latitude / longitude information indicating its own position. This latitude / longitude information is stored in the position information via the memory 18a. After being delivered to the processing unit 18 for processing, the data is sent to the prefetch accumulation processing unit 20.

The genre information storage section 19 is used for the apparatus main body 10
A monitors the various genre information prepared in advance according to the operation instruction input from the user input unit 10B.
Since it is selectably displayed on the display unit 3, the genre information of one or more provided information for each user selected from the user input unit 10B in accordance with the user's hobbies and preferences is stored in the memory 19a. It is received via (1) and stored (set) so that it can be read out as required. That is, the genre information storage unit 19 constitutes a type setting means.

Then, as shown in FIG. 3, the prefetch accumulation processing section 20 first processes its own position information obtained from the GPS data from a plurality of GPS satellites 3 as locus information to move the user. Predicting the direction of travel (direction indicated by the arrow in the figure), considering the area that is likely to arrive in the future from the present time (deviation width and arrival distance when moving from the current position within a certain time) Area prediction processing for estimating position information (indicated by a one-dot chain line in the figure) is performed.
0 indicates whether or not the position information included in the provision information of the data broadcast sent from the data broadcast decoding processing unit 16 is within the range indicated by the predicted area information, and The provided information is the genre information storage unit 1
By performing an information filtering process for selecting according to whether or not the selected genre information in 9 is satisfied, the user needs the most around the current position and around the position predicted to arrive in the future from the present time. Only the provided information is read ahead and stored. That is, the prefetch accumulation processing unit 20 constitutes information accumulation means, movement direction prediction means, and information selection means.

Here, the prefetch accumulation processing unit 20 does not obtain the area prediction processing from the trajectory information, but simply in front of the vehicle (direction of travel) with the expected arrival distance as a radius around the current position as an arbitrary radius. Although it may be a fan-shaped area that spreads at an angle of, the prediction based on the trajectory information is preferable because the prediction area can be largely prevented from changing greatly due to a vehicle turning left or right.

In addition, the data broadcast display processing unit 21 receives from the data broadcast decoding processing unit 16 and the provision information stored in advance in the prefetch accumulation processing unit 20 when the user's instruction is input from the user input unit 10B. The normal contents of the transmitted data broadcast are
BML (Broadcast Mar) via ramming Interface)
Processing for displaying on the display unit of the monitor 23 is performed by a kup language browser or the like. The data broadcast display processing unit 21 performs the filtering process performed by the prefetch accumulation processing unit 20 in place of the prefetch accumulation processing unit 20.
It is also possible to perform it by processing the BML document information.
Here, API is an interface for a program to communicate with another program, and BML is a content description language for digital television broadcasting defined by the Association of Radio Industries and Businesses.

The synthesizing section 22 synthesizes the video / audio / caption information from the video / audio / caption decoding processing section 15 with the contents of the data broadcast from the prefetch accumulation processing section 20 and the data broadcast display processing section 21. The audio information is output from the speaker 24 while being output to the display unit of the monitor 23.

Therefore, the filtering process is performed to narrow down the provided information in the data broadcast in the area of the moving direction of the user, and at the same time, to the provided information of the genre which is the kind of preference such as the user's hobby or preference. , It is possible to store only desired provision information with a small capacity, and for example, even when the broadcasting cycle of the provision information in the data broadcast is long, the provision information most suitable for the user in the area in the moving direction of movement. Can be accumulated, and the required additional information can be quickly read out and output for display when needed.

As described above, in the present embodiment, not all of the provided information included in the data broadcast is stored, but
Provided information that can be used within the area of the direction in which the user is expected to move, and that matches the genre that is likely to be used by corresponding to the hobby or taste of the user, Efficiently read ahead and filter,
It can store and hold with a small capacity.

Therefore, useful provision information can be automatically filed so that the information can be read out and output for display as required, and the provision information suitable for the user provided by data broadcasting can be provided. The information can be read and displayed without any trouble and can be used comfortably and effectively.

Here, in the present embodiment, a case will be described in which the provided information to be data-broadcast is read and displayed for output in response to a user's request. For example, when the information is applied to a navigation device, it moves. The provided information in the area displayed in the navigation screen may be automatically displayed together with the map information so that the provided information in the direction can be confirmed.

Next, FIG. 4 is a diagram showing a second embodiment of the provided information receiving apparatus according to the present invention. Since the present embodiment has substantially the same configuration as the above-described embodiment, the same configuration will be described with reference to the drawings, and the same reference numerals will be given to describe the characteristic portions (others will be described below. The same applies to the embodiment).

In FIG. 1 and FIG. 2, the prefetch accumulation processing unit 20 of the provided information receiving apparatus 10 moves and stores, as locus information, all position information (latitude / longitude information) from the time of the processing start command. Rather than predicting the direction of travel and estimating the area, the number acquired as position information from the position information by the GPS unit 17 and the acquisition time interval are rewritable non-volatile memory (condition setting) not shown from the user input unit 10B. Means), and, for example, as shown in FIG. 4, an asterisk is used in the figure based on past position information acquired at a fixed time interval up to the set time and position information acquired at the present time. The center point of the locus of movement of the user shown in is calculated, and the straight line extending from the center point to the current position is extended, and the direction indicated by the arrow in the figure is predicted as the traveling direction of the user's movement. To have.

Specifically, as shown in FIG. 4, the prefetch accumulation processing section 20 has, for example, the latest set number n for each set time on the trajectory corresponding to the latitude and longitude that the user has moved.
The locus points 1 to 5 (an, bn) up to (n = 5) are extracted (acquired), and all locus points 1 (a1, b1) to locus points 5 are extracted.
The average value of the latitude and longitude of (a5, b5) and the current position (X, Y) is calculated from the following equation, and the locus center point (A,
B) is obtained, the locus center point (A, B) and the current position (X, Y) are connected by a straight line, and the extension direction is set as the traveling direction of the user. A = (a1 + a2 + a3 + a4 + a5 + X) / (n +
1) B = (b1 + b2 + b3 + b4 + b5 + Y) / (n +
1)

Therefore, the user has moved to perform filtering processing of data broadcast provision information.
The area in the traveling direction of the user can be predicted from the loci of the points and the position information of the current position. It should be noted that such a simple estimation of the direction of travel is performed by ECMAScript (a script language standardized by the European Computer Manufacturers Association) in a BML document sent as a data broadcast.
But it can be processed.

As described above, in this embodiment, in addition to the operation and effect of the above-described embodiment, a small amount of positional information such as the five locus points and the current position is used, and light processing is performed to detect the moving direction of the user's moving direction. Area can be predicted. Therefore, it is possible to perform filtering / accumulation processing of provided information in data broadcasting with a small processing load.

Here, in the present embodiment, the processing load is suppressed by a simple calculation process for obtaining the average of several locus points, but a strict calculation such as using the least square method is performed and the user's It goes without saying that the moving direction of movement may be predicted.

Next, FIGS. 5 and 6 are views showing a third embodiment of the provided information receiving apparatus according to the present invention.

In FIG. 1 and FIG. 2, the prefetch accumulation processing unit 20 of the additional information receiving apparatus 10 performs the filtering process of the additional information of the data broadcast, so that the user arrives in the traveling direction of the user. The area around the estimated point is predicted as a temporary destination area. In this case, the provided information of the data broadcast is filtered including the current location area around the current location. Become.

Specifically, the prefetch accumulation processing unit 20 determines the temporary destination (α) from the locus center point (A, B) and the current position (X, Y) obtained by the same processing as that of the above-described embodiment, for example. , Β) is calculated, and the temporary destination (α, β) is the locus center point (A, B) and the current position (X,
Y) a position advanced from the current position (A, B) by a real multiple of the distance difference between the latitude and the longitude, that is, the locus center point (A, B) with the current position (X, Y) as the center.
Fold back (rotate) 0 ° and move to its current position (X,
Y) The latitude and longitude distances from Y) are respectively calculated by a positive real number m that does not include zero, which is set in advance. If is set, as shown in FIG.
The tentative destination (α, β) is a symmetrical position rotated by 180 ° about the current position (A, B). α = m (X + (X−A)) = m (2X−A) β = m (Y + (Y−B)) = m (2Y−B)

Then, the look-ahead accumulation processing unit 20 calculates the latitude of each of the temporary destinations (α, β) calculated by the above equation,
As shown by the solid line in FIG. 5, as a temporary destination area for filtering the information provided in the data broadcast by adding and subtracting a preset distance L to the longitude, the temporary destination (α, A square range with a distance L in the latitude and longitude directions centered on β) is set, and the same calculation process is performed as the current position area, and as shown by the alternate long and short dash line in FIG. , Y) as a center, and a range of squares separated by a distance L in the latitude and longitude directions is set.

That is, the prefetch accumulation processing section 20 carries out the filtering processing depending on whether or not the position information (Px, Py) of the provided information of the data broadcast is within the range of latitude and longitude shown below. Latitude: (α−L) ≦ Px ≦ (α + L) (X−L) ≦ Px ≦ (X + L) Longitude: (β−L) ≦ Py ≦ (β + L) (Y−L) ≦ Py ≦ (Y + L)

For this reason, the prefetch accumulation processing section 20 is configured as shown in FIG.
As shown in, the latest locus point is extracted in accordance with the movement of the user at every timing described later, and the locus point 1
Set temporary destinations (α, β) based on the locus center points (A, B) and current positions (X, Y) of ~ 5, and filter provision information of data broadcasting according to the current position area and temporary destination area. In this case, the distances of the temporary destinations (α, β) set before and after the provision information accumulated in the past so that the provision information is continuously filtered and accumulated (in the case of The time interval of the timing of performing this filtering process is automatically adjusted so that the temporary destination areas of are overlapped by a predetermined area. The provided information outside the range of the temporary destination area acquired earlier is filtered and stored as necessary, and even if the provided information is already accumulated because it was in the destination area in the past, the latest If you are updated to the information are data broadcast, at any time, so that the replaced with the latest information.

Therefore, the user can perform the filtering process of selecting the provision information that can be used in the temporary destination area and the current position area, which are predicted to arrive after a certain period of time.

As described above, in this embodiment, in addition to the effects of the above-described embodiment, the provided information useful for the user can be efficiently provided by narrowing down the current position area and the temporary destination area to a narrower range. Can be filtered. Therefore, it is possible to perform filtering / accumulation processing of the additional information in the data broadcast with a small storage capacity, and it is possible to read and display the additional information useful to the user without trouble and to use it comfortably and effectively.

Here, as another aspect of the present embodiment,
It is needless to say that the area is not limited to the square temporary destination area and the current position area, and that an irregular area may be set. For example, as shown in FIG. 7, temporary destinations (α, β), A circular area having a radial distance L centered on the current position (X, Y) can be set (only the temporary destination area is shown in FIG. 7), or as shown in FIG. , Β) and the current position (X, Y) are set as elliptical areas, or as shown in FIG. 9, a straight line from the current position (X, Y) to the temporary destination (α, β) It is also possible to set a fan-shaped area in which an extension line obtained by adding the set distance L to is extended by an arbitrary angle θ.

[0050]

According to the present invention, the predicted moving direction of the user and the provided information that can be used at a specific position in the virtual target area are selected and stored, so that the moving direction and the arrival direction will be reached. The provided information to be stored can be narrowed down by efficiently filtering in the area, and the user can confirm it by instantaneously reading out and displaying the available provided information.

Further, by more efficiently filtering the type of the provided information according to the user's hobbies and preferences, the provided information more suitable for the user can be accumulated and used.

Therefore, the useful information that is useful to the user can be automatically and efficiently prefetched and obtained, and the useful information can be utilized easily and comfortably without any trouble in using it.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of a provided information receiving apparatus according to the present invention, and is a relational diagram explaining the received information.

FIG. 2 is a block diagram showing a schematic overall configuration thereof.

FIG. 3 is a conceptual diagram illustrating the operation.

FIG. 4 is a diagram showing a second embodiment of the provided information receiving device according to the present invention, and is a conceptual diagram explaining the operation thereof.

FIG. 5 is a diagram showing a third embodiment of the provided information receiving device according to the present invention, and a conceptual diagram for explaining the operation thereof.

FIG. 6 is a conceptual diagram illustrating the operation.

FIG. 7 is a conceptual diagram illustrating another aspect.

FIG. 8 is a conceptual diagram illustrating another aspect.

FIG. 9 is a conceptual diagram illustrating another aspect.

[Explanation of symbols]

1 Broadcast satellite 2 Ground base station 3 GPS satellites 10 Provision information receiving device 10A device body 10B User input section 11 antenna 12 Front end part 13 Transstream processing buffer section 15 Video / audio / subtitle decoding processing unit 16 Data Broadcast Decoding Processor 17 GPS Department 18 Position information processing unit 19 Genre information storage 20 Read-ahead accumulation processing unit 21 Data Broadcast Display Processing Unit 22 Composition Department 23 Monitor 24 speakers

Front page continuation (51) Int.Cl. ⁷ identification code FI theme code (reference) G06F 17/30 340 G08G 1/137 G08G 1/137 H04B 7/26 106A H04Q 7/20 H04Q 7/04 Z (72) Inventor Takeshi Kimura 1-10-11 Kinuta, Setagaya-ku, Tokyo Inside Broadcasting Technology Research Institute, Japan Broadcasting Corporation (72) Inventor Kazuya Fujisawa 1-10-11 Kinuta, Setagaya-ku, Tokyo Within Broadcasting Technology Research Institute, Japan Broadcasting Corporation (72) Inventor Kinji Matsumura 1-10-11 Kinuta, Setagaya-ku, Tokyo F-term in the Institute of Broadcasting Technology, Japan Broadcasting Corporation (reference) 2F029 AA02 AA07 AB07 AB13 AC02 AC04 AC08 AC13 AC18 5B075 PQ02 UU14 5H180 AA01 BB04 BB05 EE18 FF05 FF12 FF13 FF22 FF25 FF27 5K067 BB04 BB21 DD20 FF02 FF03 GG01 GG11 HH05 HH23 JJ52 JJ56

Claims (4)

[Claims] 1. An information receiving means for receiving provided information transmitted including the specific position information in order to provide information that can be used at a specific position, and the information receiving means. And a position acquisition unit that acquires position information of the user and a user whose position information is acquired by the position acquisition unit. The present invention is characterized in that a moving direction predicting means for predicting a moving direction and an information selecting means for selecting the provided information accumulated in the information accumulating means based on the moving direction predicted by the moving direction predicting means are provided. Information receiving device. 2. Condition setting means for setting the acquisition interval of the position information of the user acquired to predict the direction in which the user is moving and the number of acquisitions of the position information of the user in the past including the current time. The moving direction predicting means predicts a moving direction of the user based on position information of a set number of users acquired at a setting interval by the position acquiring means. The provided information receiving device described. 3. The moving direction predicting means predicts a temporary destination area in which the user, whose position information has been acquired by the position acquiring means, moves, and the information selecting means, the provision information received by the information receiving means. 3. The provided information receiving apparatus according to claim 1 or 2, wherein the provision information receiving device performs selection based on the temporary destination area predicted by the moving direction prediction means and storage in the information storage means. 4. A type setting means for setting a type of provided information according to a user is provided, and the information selecting means also applies to the type set by the type setting means as provided information to be accumulated in the information accumulating means. 4. The provided information receiving apparatus according to claim 1, wherein the provided information is selected.