JP2015070362A - Reception propriety prediction program, reception propriety prediction method, and reception propriety prediction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to provide information on a broadcast station which is determined to be viewable, by predicting view propriety of a broadcast program at an arbitrary location.SOLUTION: A reception propriety prediction program makes a computer execute: a step of acquiring information showing a location of an apparatus; a prediction step of reading an electric wave reception level for each broadcast station at a location within a predetermined distance from the location of the apparatus from a storage unit for storing location information associated with an electric wave reception level for each broadcast station at a location shown by the location information, and calculating a prediction value of the electric wave reception level for each broadcast station at the location of the apparatus on the basis of the read electric wave reception level; and an output step of outputting information on a broadcast station whose prediction value of the electric wave reception level is equal to or larger than a predetermined threshold.

Description

  The present invention relates to a reception availability prediction program, a reception availability prediction method, and a reception availability prediction apparatus.

  A device that does not include a tuner that receives a television broadcast cannot specify a receivable broadcast station based on an actual reception state. Therefore, when such a device acquires, for example, an electronic program guide (EPG), a method of specifying an administrative division such as a prefecture by specifying the administrative division such as a user or using GPS is adopted. ing. When the broadcast target area of a broadcasting station is determined in units of administrative divisions, if the administrative division in which the user or the receiving device is located can be specified, a broadcasting station that uses the administrative division as the broadcast target area can be known.

  By the way, there are cases where a broadcast wave reaches outside the broadcast target area (also referred to as “spillover”), and a broadcast wave intended for a certain area can be received even in an adjacent area. In addition, a technique has been proposed in which an area code is selected when located within a predetermined distance from an area boundary (for example, Patent Document 1).

JP 2008-35160 A

  However, it has been impossible to predict whether or not actual viewing is possible in consideration of spillover and to output information on a broadcasting station such as EPG, for example. Accordingly, an object of the present invention is to predict whether or not a broadcast program can be viewed at an arbitrary point, and to provide information regarding a broadcast station that is determined to be viewable.

  The reception propriety prediction program according to the present invention includes a step of acquiring information indicating the position of a device, a position information, and a radio wave reception level for each broadcasting station at the position indicated by the position information in association with each other. A prediction step of reading a radio wave reception level for each broadcasting station at a position within a predetermined distance from the position of the device, and calculating a predicted value of the radio wave reception level for each broadcasting station at the position of the device based on the read radio wave reception level; Causing the computer to execute an output step of outputting information relating to a broadcasting station whose radio wave reception level prediction value is equal to or greater than a predetermined threshold.

  In this way, it is possible to predict the radio wave reception level at the position of the device based on the information of the point where the radio wave reception level is known in advance. That is, it is possible to predict whether or not a broadcast program can be viewed at an arbitrary point, and to provide information regarding a broadcast station that is determined to be viewable.

  Further, the reception possibility prediction program predicts the radio wave reception level by calculating a weighted average of the radio wave reception levels weighted so that the radio wave reception level associated with the position information close to the position of the device has a higher weight in the prediction step. It may be calculated as a value. In this way, the predicted value of the radio wave reception level can be calculated by reflecting the distance between the position of the device and the point where the radio wave reception level is known in advance.

  Further, the storage unit stores the broadcast station and the sequence to which the broadcast station belongs in association with each other, and the reception availability prediction program is identical when there are a plurality of broadcast stations that belong to the same sequence in the output step. Of the broadcast stations belonging to the group, information regarding the broadcast station including the position of the device in a predetermined broadcast target area may be output. When radio waves of a plurality of broadcast stations belonging to the same series can be received, an appropriate broadcast station can be selected.

  Further, the storage unit stores the broadcast station and the sequence to which the broadcast station belongs in association with each other, and the reception availability prediction program is identical when there are a plurality of broadcast stations that belong to the same sequence in the output step. Information regarding a broadcast station having a high predicted value of the radio wave reception level among broadcast stations belonging to the group may be output. Even in this case, if the radio waves of a plurality of broadcasting stations belonging to the same series can be received, an appropriate broadcasting station can be selected.

  The reception possibility prediction program may further execute a step of acquiring a post to the network service regarding the broadcast station, and output the post to the network service as information about the broadcast station in the output step. The information related to the broadcast station is not limited to information such as EPG, and may be a post to a network service related to the broadcast station.

  The program may be recorded on a computer-readable recording medium. Here, the computer-readable recording medium refers to a recording medium that accumulates information such as data and programs by electrical, magnetic, optical, mechanical, or chemical action and can be read from the computer. . Among such recording media, those removable from the computer include flexible disks, magneto-optical disks, optical disks, flash memories, magnetic tapes, and the like. As recording media fixed to the computer, there are HDD (Hard Disk Drive), SSD (Solid State Drive), ROM (Read Only Memory) and the like.

  Further, the computer according to the present invention can execute the reception possibility prediction method and can provide an apparatus for executing the processing according to the present invention.

  According to the present invention, it is possible to predict whether or not a broadcast program can be viewed at an arbitrary point, and to provide information on a broadcast station that is determined to be viewable.

It is a block diagram which shows an example of a system configuration. It is a functional block diagram which shows an example of a prediction server. It is a table | surface which shows an example of the table memorize | stored in a sample point information storage part. It is a figure for demonstrating an example of arrangement | positioning of a sample point. It is a table | surface which shows an example of the table memorize | stored in a broadcast object area | region memory | storage part. It is an apparatus block diagram which shows an example of a structure of a computer. It is a sequence diagram which shows an example of a process of a system. It is a figure for demonstrating the sample point within the predetermined distance from the position of a user terminal. It is a processing flowchart which shows an example of a viewable station prediction process. It is a figure for demonstrating an example of the simple extraction method of a sample point. It is a sequence diagram which shows the modification of the process of a system. It is a class diagram which shows the modification of a table structure.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The configuration of the present embodiment is an exemplification, and the present invention is not limited to the following configuration.

<System configuration>
FIG. 1 is a configuration diagram of the entire system related to the present embodiment. The system of FIG. 1 includes a prediction server 1, an EPG (Electronic Program Guide) server 2, an SNS (Social Networking Service) server 3, and a user terminal 4, which are, for example, a network such as the Internet. 5 is connected. The prediction server 1 predicts the radio wave reception state at an arbitrary point in consideration of spillover, and transmits information related to the broadcast predicted to be receivable to the user terminal 4. The EPG server 2 distributes EPG data which is an example of information related to broadcasting. The SNS server 3 is an apparatus that provides an SNS service (also referred to as a “network service”) such as a miniblog, and accepts and publishes posts from users. In addition, you may make it the prediction server 1 collect what mentions the specific broadcasting station or program among the postings from a user as information regarding broadcast. The user terminal 4 is a smartphone, a tablet computer, a mobile phone, a personal computer, a television receiver, or the like.

  The number of each device may be two or more. For example, the EPG server 2 may exist for each broadcasting station, and may acquire information from a plurality of SNS servers 3. Further, the EPG may be distributed via the Internet, or may be distributed in a broadcast stream.

<Function of prediction server>
FIG. 2 is a functional block diagram illustrating an example of the prediction server 1 according to the present embodiment. The prediction server 1 of FIG. 2 includes a position information acquisition unit 11, a radio wave reception level prediction unit 12, a sample point information storage unit 13, a viewable station determination unit 14, a broadcast target area storage unit 15, and a broadcast information output. Unit 16 and broadcast information storage unit 17.

The position information acquisition unit 11 receives position information from the user terminal 4 via the network 5. The received position information is, for example, information indicating the position of the user terminal 4 and is generated by a GPS (Global Positioning System) function provided in the user terminal 4. The radio wave reception level predicting unit 12 receives the position information acquired from the user terminal 4 and the radio wave of a television (hereinafter simply referred to as “TV”) broadcast at a predetermined point acquired from the sample point information storage unit 13. Using the level, the reception level of the broadcast radio wave at the position of the user terminal 4 is calculated.

The sample point information storage unit 13 stores the reception level of broadcast radio waves from a television or the like at a predetermined point. FIG. 3 shows an example of sample point information stored in the sample point information storage unit 13. The sample point information in FIG. 3 is a table having fields (also referred to as “columns”) such as sample point ID, latitude, longitude, broadcast station ID, series ID, and radio wave reception level. In the sample point ID field, identification information for identifying a sample point is registered. In the latitude and longitude fields, an angle indicating the latitude and longitude, which is the position of the sample point, is registered. In the broadcast station ID field, identification information for identifying a broadcast station that can be viewed at the sample point is registered. In the sequence ID field, identification information for identifying the sequence to which the broadcast station belongs is registered. In the radio wave reception level field, for example, a value based on at least one of electric field strength, CN (Carrier Noise) ratio, or modulation error ratio is registered. That is, the radio wave reception level is a reference value based on received power or radio wave quality. For example, it is assumed that the higher the radio wave reception level, the better the radio wave reception state.

The sample point in this embodiment is a predetermined point whose radio wave reception level is known in advance. FIG. 4 is a diagram illustrating an example of sample points on a map. In the example of FIG. 4, the cross symbol indicates the position of the sample point. The sample points may not be arranged at equal intervals as shown in FIG. 4, or may be arranged so that the intervals between the sample points are substantially equal. The sample point may be provided on the sea. The radio wave reception level at a sample point may be determined based on, for example, a value measured by an electric field strength measuring device, or information indicating the radio wave reception state when a user receives a broadcast around each sample point It may be collected from the terminal 4 and determined. In addition, at the sample point in the northern part of Aomori Prefecture, it is possible to receive broadcast waves with Hokkaido as the broadcast target area, and at the sample point in the southern part of Aomori Prefecture, it is possible to receive broadcast waves with the broadcast target area in Iwate Prefecture. . A user near the boundary of a broadcast target area may be watching a program of a broadcast station that broadcasts the adjacent area.

  The viewable station determination unit 14 obtains the predicted value of the broadcast radio wave reception level calculated by the radio wave reception level prediction unit 12 and the information on the area targeted for broadcast by the broadcast station stored in the broadcast target area storage unit 15. The broadcast station that is predicted to be viewable at the position of the user terminal 4 is determined. The broadcast target area storage unit 15 stores, for example, information indicating an administrative division indicating a broadcast target area and a broadcasting station broadcasting to the area. FIG. 5 shows an example of broadcast target area information stored in the broadcast target area storage unit 15. The broadcast target area information in FIG. 5 is a table having fields such as an administrative division ID and a broadcast station ID. Identification information corresponding to administrative divisions such as prefectures is registered in the administrative division ID field. In the broadcast station ID field, identification information for identifying a broadcast station having the administrative division as a broadcast target area is registered.

  The broadcast information output unit 16 acquires broadcast information related to the viewable station determined by the viewable station determination unit 14 from the broadcast information storage unit 17 and transmits it to the user terminal 4. In the present embodiment, the prediction server 1 transmits, for example, EPG data or data posted to a network service (for example, a miniblog) related to a program or a broadcasting station as information related to broadcasting. In the broadcast information storage unit 17, for example, EPG data acquired by the prediction server 1 from the EPG server 2 or the SNS server 3 via the network 5 or post data to a SNS related to a program or a broadcast station is stored in advance. In addition, the broadcast information storage unit 17 stores a keyword (for example, “hash tag”) indicating that the posting is related to a program or a broadcasting station, and the prediction server 1 transmits the keyword to the user terminal 4. The user terminal 4 may acquire post data from the SNS server 3. In the example of FIG. 3, for convenience, the sample point information storage unit 13, the broadcast target area storage unit 15, and the broadcast information storage unit 17 are shown, but these are the storage units of the prediction server 1. It is a storage device or a main storage device.

<Device configuration>
FIG. 6 is an example of a configuration diagram of a computer. The prediction server 1, the EPG server 2, the SNS server 3, and the user terminal 4 are computers as shown in FIG. The computer includes a CPU (Central Processing Unit) 1001, a main storage device 1002, an auxiliary storage device 1003, a communication IF (Interface) 1004, an input / output IF (Interface) 1005, a drive device 1006, and a communication bus 1007. The CPU 1001 performs processing according to the present embodiment by executing a program (also referred to as “software” or “application”). The main storage device 1002 caches programs and data read by the CPU 1001 and develops a work area of the CPU. Specifically, the main storage device is a RAM (Random Access Memory), a ROM (Read Only Memory), or the like. The auxiliary storage device 1003 stores programs executed by the CPU 1001, information used in the present embodiment, and the like. Specifically, the auxiliary storage device 1003 is an HDD (Hard-disk Drive).
), SSD (Solid State Drive), flash memory, and the like. The main storage device 1002 and the auxiliary storage device 1003 function as the sample point information storage unit 13, the broadcast target area storage unit 15, the broadcast information storage unit 17, and the like of the prediction server 1. The auxiliary storage device 1003 of the EPG server 2 stores information such as the start time and contents of a program scheduled to be broadcast. Further, the auxiliary storage device 1003 of the SNS server 3 stores the writing posted by the user via the communication IF. The communication IF 1004 transmits / receives data to / from other computers. Communication IF100
More specifically, 4 is a wired or wireless network card or the like. The input / output IF 1005 is connected to the input / output device and accepts input from the user or outputs information to the user. Specifically, the input / output device is a keyboard, a mouse, a display, various sensors, a touch panel, or the like. The input / output IF 1005 of the user terminal 4 is also connected to a GPS module that receives a GPS signal and outputs information indicating a position. The drive device 1006 reads data recorded on a storage medium such as a magnetic disk, a magneto-optical disk, and an optical disk, and writes data to the storage medium. The above components are connected by a communication bus 1007. A plurality of these components may be provided, or some of the components (for example, the drive device 1006) may not be provided. Further, the input / output device may be integrated with the computer. A program executed in this embodiment is provided via a portable storage medium readable by the drive device 1006, a portable auxiliary storage device 1003 such as a flash memory, and a communication IF 1004. It may be. Then, when the CPU 1001 executes the program, the computer as described above works as the prediction server 1 or the like.

<System processing>
FIG. 7 is a sequence diagram illustrating an example of processing of the system according to the present embodiment. First, the user terminal 4 acquires information (also referred to as “position information”) indicating the position of the user terminal 4 via the GPS module (FIG. 7 (1)). The position information can be expressed using a data format based on an existing standard. Next, the user terminal 4 transmits the acquired position information to the prediction server 1 (FIG. 7 (2)). On the other hand, the position information acquisition unit 11 of the prediction server 1 acquires position information from the user terminal 4. Further, the radio wave reception level prediction unit 12 of the prediction server 1 requests the sample point information storage unit 13 for information on sample points existing within a predetermined distance from the position indicated by the received position information (FIG. 7 (3)). The sample point information storage unit 13 returns the requested sample point information (FIG. 7 (4)).

  FIG. 8 is a diagram showing an area within a predetermined distance from the user terminal 4 at the sample points on the map shown in FIG. In the example of FIG. 8, the position of the user terminal 4 is indicated by a black circle, and a circle whose radius is a predetermined distance with the position as the center is indicated by a solid line. In the above step (4), the sample point information storage unit 13 returns information on the sample points existing inside the circle. The predetermined distance is preferably large enough to include at least one sample point, and conversely, the sample point is preferably provided so as to reduce the density deviation.

  Further, the radio wave reception level prediction unit 12 of the prediction server 1 calculates a predicted value of the radio wave reception level at the position of the user terminal 4, and the viewable station determination unit 14 of the prediction server 1 can be viewed at the position of the user terminal 4. Predictable broadcast stations (FIG. 7 (5)). Details of the prediction process will be described later. Then, the broadcast information output unit 16 of the prediction server 1 requests the broadcast information storage unit 17 of the prediction server 1 for information on the broadcast station program predicted to be viewable (FIG. 7 (6)), and stores the broadcast information storage. The unit 17 returns the requested broadcast information (FIG. 7 (7)). Thereafter, the broadcast information output unit 16 of the prediction server 1 transmits the acquired broadcast information to the user terminal 4 (FIG. 7 (8)). The user terminal 4 outputs the received broadcast information to an output device such as a screen of the user terminal 4 (FIG. 7 (9)).

<Viewable station prediction process>
Next, details of the processing of the prediction server 1 will be described with reference to FIG. FIG. 9 is a process flow diagram illustrating an example of the viewable station prediction process executed by the prediction server 1. First, the position information acquisition unit 11 of the prediction server 1 acquires the position information of the user terminal 4 via the network 5 (FIG. 9: S1). Here, data including latitude and longitude is received as the position information of the user terminal 4.

  In addition, the radio wave reception level prediction unit 12 of the prediction server 1 acquires, from the sample point information storage unit 13, information on sample points that exist within a predetermined distance from the position indicated by the position information received from the user terminal 4 (S2). . In this step, for example, a record in which the latitude and longitude indicating the position of the sample point are included within a predetermined distance from the position of the user terminal 4 among the sample point records included in the table as illustrated in FIG. . If the predetermined distance is 10 km, the distance between the two points may be calculated to extract sample points with a distance of 10 km or less. You may extract the sample point contained in a rectangle.

なお、φは対象地点の地理緯度、ａは地球の赤道半径（長半径）、ｅは離心率である。 Here, when converting latitude and longitude into distance (meters), for example, an approximate value of the distance 1 per second of latitude is obtained by the following equation.

Here, φ is the geographical latitude of the target point, a is the equator radius (long radius) of the earth, and e is the eccentricity.

なお、φは対象地点の地理緯度、ａは地球の赤道半径、ｅは離心率、Δλは始点と終点の経度の差である。 Moreover, the length Δl of the latitude line per second along the meridian can be obtained by the following equation.

Φ is the geographical latitude of the target point, a is the equator radius of the earth, e is the eccentricity, and Δλ is the difference between the longitude of the start point and the end point.

  For example, at the origin of latitude and longitude in Japan, the distance at 1 second latitude is about 30.820 m, and 10 km is 324.46 seconds (10 km ÷ 30.820 m). The distance of 1 second in longitude is about 25.153 m, and 10 km is 324.46 seconds (10 km ÷ 25.153 m). A sample point may be simply extracted using this distance. That is, as illustrated in FIG. 10, when the position information acquired from the user terminal 4 indicates north latitude y degrees and east longitude x degrees (x degrees−395.57 seconds, y degrees + 324.46 seconds), (x 4 of (degree +398.57 seconds, y degree +324.46 seconds), (x degrees +395.57 seconds, y degrees -324.46 seconds), (x degrees -398.57 seconds, y degrees -324.46 seconds) You may make it acquire the sample point contained in the inside of the square which a point forms. That is, from the table shown in FIG. 3, the latitude is “y degree−324.46 seconds” or more, “y degree + 324.46 seconds” or less, and the longitude is “x degrees−395.57 seconds” or more, “x degrees +397.57 seconds ”or less is acquired. Sample points may be extracted using such approximate values.

なお、Ｐは、所定距離（上記の例では１０ｋｍ）である。Ｄ_１〜Ｄ_ｎは、標本点とユーザ端末４の位置との距離である。また、Ｓ_１〜Ｓ_ｎは、各標本点における電波受信レベルである。ここで、（Ｐ−Ｄ_ｎ）≧０となる標本点１〜ｎを用いて加重平均ｍを算出すれば、Ｓ２においておおよその値を用いて標本点を抽出した場合であっても、ユーザ端末４の位置から所定距離内の標本点を用いて加重平均ｍが算出されることになる。算出される加重平均ｍは、本実施形態における電波受信レベルの予測値である。すなわち、電波受信レベルの予測値は、機器の位置に近い位置情報と関連付けられている電波受信レベルほど重みが大きくなるように重みづけした、電波受信レベルの加重平均になっている。 Next, the radio wave reception level prediction unit 12 calculates a predicted value of the radio wave reception level at the position of the user terminal 4 (S3). In this step, for example, a weighted average of radio wave reception levels is calculated for each of the broadcast stations that can be viewed at the acquired sample points. The weighted average of the radio wave reception level can be obtained by the following formula.

Note that P is a predetermined distance (10 km in the above example). D _{1 to} D _n are distances between the sample point and the position of the user terminal 4. _Further, S 1 to S _n is the radio wave reception level at each sample point. Here, if the weighted average m is calculated using the sample points 1 to n satisfying (P−D _n ) ≧ 0, even if the sample points are extracted using approximate values in S2, the user terminal The weighted average m is calculated using the sample points within a predetermined distance from the position 4. The calculated weighted average m is a predicted value of the radio wave reception level in the present embodiment. That is, the predicted value of the radio wave reception level is a weighted average of the radio wave reception levels weighted so that the radio wave reception level associated with the position information close to the position of the device has a higher weight.

  Also, the viewable station determining unit 14 of the prediction server 1 determines a viewable station (S4). In this step, for example, broadcast stations whose weighted average m is equal to or greater than a predetermined threshold are extracted as viewable stations. Further, when there are broadcast stations of the same series among the extracted viewable stations, the viewable station determination unit 14 narrows down broadcast stations to be presented to the user from the same series of broadcast stations (S5). Here, the series of broadcasting stations refers to a network of broadcasting companies that share broadcasting programs. Therefore, broadcast stations belonging to the same series often broadcast the same program. In the present embodiment, in S5, broadcast stations that can be estimated to be in a good radio wave reception state among the broadcast stations that belong to the same series are narrowed down.

  For example, when it is predicted that broadcast waves can be received from a plurality of broadcasting stations belonging to the same series, the viewable station determining unit 14 first broadcasts the administrative division in which the user terminal 4 is located as a broadcasting target area. Determine if a station exists. The association between each broadcasting station and the broadcast target area is stored in advance in a table of the broadcast target area storage unit 15 as shown in FIG. Then, when there is a corresponding broadcast station, it is narrowed down to the broadcast station. When there is no broadcast station whose broadcast target area is the administrative division in which the user terminal 4 is located, the viewable station determination unit 14 predicts the radio wave reception level among a plurality of broadcast stations belonging to the same series. Narrow down to high broadcasting stations. The narrowed-down broadcasting stations can be said to be broadcasting stations with a high possibility of being able to satisfactorily receive broadcast waves at the position of the user terminal 4.

The administrative division in which the user terminal 4 is located may be specified from the latitude and longitude of the user terminal 4 using, for example, an existing API (Application Program Interface) via a network. Moreover, you may make it the prediction server 1 further have a function which specifies an administrative division from the latitude and the longitude. Moreover, in S5 of FIG. 9, you may make it narrow down only to the broadcasting station with a high predicted value of a radio wave reception level, without performing the judgment based on the administrative division in which the user terminal 4 is located.

  Thereafter, the broadcast information output unit 16 of the prediction server 1 acquires information on the narrowed broadcast stations from the broadcast information storage unit 17 and transmits the information to the user terminal 4 via the network 5 (S6). In this step, for example, information related to a program scheduled to be broadcast after the time period in which this process is executed is acquired from the broadcast information storage unit 17 and transmitted to the user terminal 4. Specifically, information that introduces the title and content of a program included in the EPG, or information posted to a network service that includes a keyword indicating that the content is related to a specific broadcast station or program, etc. Obtained and transmitted to the user terminal 4. Thereafter, the prediction server 1 ends the viewable station prediction process.

According to the present embodiment, since the radio wave reception level at the position of the user terminal 4 is predicted based on the radio wave reception level of a sample point that is known in advance, the broadcast is simply performed based on the administrative division to which the position where the user terminal 4 exists. A broadcasting station reflecting an actual radio wave reception state can be presented rather than a case where a station is presented. That is, there is a possibility that a spillover has occurred near the boundary of the administrative division, and according to the prediction server 1 according to the present embodiment, it is possible to present a viewable station considering spillover. It is possible to determine whether or not a receiver with a tuner can receive a broadcast wave. However, in the case of a mobile terminal such as a mobile phone or a smartphone that does not have a function of receiving a TV broadcast, this implementation is possible. The prediction process according to the embodiment is suitable.

  In the present embodiment, a weighted average is calculated in order to calculate a predicted value of the radio wave reception level. By using a weighted average weighted according to the distance from the user terminal 4, even if sample points are not provided at regular intervals as in the present embodiment, they exist around the user terminal 4. The magnitude of the radio wave reception level between broadcasting stations can be predicted based on the information on the sample points to be transmitted.

<Modification>
In the sequence diagram of FIG. 6, the position of the user terminal 4 is acquired and the viewable station is determined every time processing is performed, but once the viewable station is determined, the user terminal 4 provides, for example, identification information indicating the viewable station. The process of storing in the storage device and determining the viewable station may be omitted in the second and subsequent processes. FIG. 11 is a sequence diagram according to a modification.

  Steps (1) to (5) in FIG. 11 are the same as steps (1) to (5) in FIG. Thereafter, the prediction server 1 transmits the identification information of the broadcast station predicted to be viewable to the user terminal 4 (FIG. 11 (6)), and the user terminal 4 stores the identification information of the broadcast station predicted to be viewable. Hold on the device. If the user terminal 4 stores a viewable station, the prediction server 1 does not need to repeat the prediction process. Note that the user may confirm the broadcast station received in step (6), change the broadcast station, and store it in the storage device.

  Further, the user terminal 4 requests the prediction server 1 for information regarding a broadcast station that can be viewed at an arbitrary timing ((7) in FIG. 11). At this time, the user terminal 4 transmits the stored broadcast station identification information. Also, the broadcast information output unit 16 of the prediction server 1 requests the broadcast information storage unit 17 for information on the broadcast stations that can be viewed (FIG. 11 (8)), and the broadcast information storage unit 17 returns the corresponding broadcast information. (FIG. 11 (9)). Then, the broadcast information output unit 16 of the prediction server 1 transmits the corresponding broadcast information to the user terminal 4 (FIG. 11 (10)), and the user terminal 4 outputs the received broadcast information to the output device (FIG. 11 ( 11)).

  In addition, when the position of the user terminal 4 moves more than a predetermined threshold value, you may make it re-execute the process of FIG. 11 (1)-(5). In addition, when a predetermined time has elapsed since the previous process, the processes of FIGS. 11 (1) to 11 (5) may be re-executed.

  When performing the process as shown in FIG. 11, the process flow of FIG. 9 is such that the viewable station determining unit 14 of the prediction server 1 transmits the identification information of the broadcast station predicted to be viewable to the user terminal 4 after S5. Changed to The broadcast information output unit 16 of the prediction server 1 receives the identification information of the broadcast station predicted to be viewable from the user terminal 4 and performs the process of S6.

  Moreover, although (1) of FIG.6 and FIG.11, S1 of FIG. 9, etc. demonstrated that a positional information was acquired using the GPS module with which the user terminal 4 is provided, the user terminal 4 inputs an address from a user, for example And the latitude and longitude corresponding to the address may be specified on the prediction server 1 side.

  Further, S5 in the processing flow shown in FIG. 9 may not be executed. That is, when there are a plurality of broadcasting stations belonging to the same series, it is not necessary to narrow down the stations that can be viewed. When not narrowing down, the user terminal 4 presents a plurality of broadcast stations belonging to the same series. Furthermore, the user may be allowed to select a broadcast station from which broadcast information should be obtained from a plurality of broadcast stations.

  The tables shown in FIGS. 3 and 5 are examples, and the structure of the tables is not limited to the examples in FIGS. 3 and 5 as long as the same information is held. For example, you may employ | adopt four tables which show a class diagram in FIG. In the example of FIG. 12, only attribute names (field names) are shown. Each rectangle represents a table, and each row represents a field. The connection line between the tables represents the corresponding field.

  Further, in the above aspect, the television broadcast has been described as an example, but the present technology may be applied to a radio broadcast or the like.

DESCRIPTION OF SYMBOLS 1 Prediction server 11 Position information acquisition part 12 Radio wave reception level prediction part 13 Sampling point information storage part 14 Viewable station determination part 15 Broadcast target area storage part 16 Broadcast information output part 17 Broadcast information storage part 2 EPG server 3 SNS server 4 User Terminal 5 network

Claims (7)

Obtaining information indicating the position of the device;
Reading the radio wave reception level for each broadcasting station at a position within a predetermined distance from the position of the device, from the storage unit that stores the positional information and the radio wave reception level for each broadcasting station at the position indicated by the position information, A prediction step of calculating a predicted value of the radio wave reception level for each broadcasting station at the position of the device based on the read radio wave reception level;
An output step of outputting information relating to a broadcasting station having a predicted value of the radio wave reception level equal to or greater than a predetermined threshold;
Receiving possibility prediction program for causing a computer to execute. In the prediction step, a weighted average of radio wave reception levels weighted so that a radio wave reception level associated with position information close to the position of the device has a higher weight is calculated as a predicted value of the radio wave reception level. The program according to 1. The storage unit stores the broadcast station and a sequence to which the broadcast station belongs in association with each other,
In the output step, when there are a plurality of broadcast stations that belong to the same series, among the broadcast stations that belong to the same series, information related to the broadcast station including the position of the device is output in a predetermined broadcast target area. Item 3. The program according to item 1 or 2. The storage unit stores the broadcast station and a sequence to which the broadcast station belongs in association with each other,
The information regarding the broadcasting station with a high predicted value of the said radio wave reception level is output among the broadcasting stations which belong to the same series in the said output step, when there exist multiple broadcasting stations which belong to the same series. Program. Further executing a step of obtaining a post to the network service regarding the broadcasting station,
The program according to any one of claims 1 to 4, wherein, in the output step, a post to the network service is output as information on the broadcast station. Obtaining information indicating the position of the device;
Reading the radio wave reception level for each broadcasting station at a position within a predetermined distance from the position of the device, from the storage unit that stores the positional information and the radio wave reception level for each broadcasting station at the position indicated by the position information, A prediction step of calculating a predicted value of the radio wave reception level for each broadcasting station at the position of the device based on the read radio wave reception level;
An output step of outputting information relating to a broadcasting station having a predicted value of the radio wave reception level equal to or greater than a predetermined threshold;
Is a reception predictability prediction method executed by a computer. A position information acquisition unit for acquiring information indicating the position of the device;
Reading the radio wave reception level for each broadcasting station at a position within a predetermined distance from the position of the device, from the storage unit that stores the positional information and the radio wave reception level for each broadcasting station at the position indicated by the position information, A predicted radio wave reception level prediction unit that calculates a predicted value of the radio wave reception level for each broadcasting station at the position of the device based on the read radio wave reception level;
A broadcast information output unit for outputting information on a broadcast station whose predicted value of the radio wave reception level is equal to or greater than a predetermined threshold;
A device for predicting whether or not reception is possible.

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