JP7197462B2 - Apparatus and program for determining value of information presentation - Google Patents

Description

The present invention relates to a technique for determining whether a surface (information presentation surface) that can be used for information presentation in a three-dimensional space is useful for information presentation.

Patent Literature 1 discloses a configuration for evaluating the value of information presentation in each area where communication services are provided. According to Japanese Patent Laid-Open No. 2004-100001, information indicating the movement history of a wireless terminal and the focus position of the camera of the wireless terminal is acquired from many wireless terminals, and based on this information, information is presented for each area where communication services are provided. value in

Japanese Patent No. 5650613

The configuration of Patent Document 1 determines the value of each area, and determines whether or not a certain surface (hereinafter referred to as an information presentation surface) in a three-dimensional space attracts the attention of many users. not a thing That is, for example, with the configuration of Patent Document 1, it is not possible to determine whether or not a side of a building in real space has a high utility value as an information presentation side.

The present invention provides a technique for determining the value of information presentation.

According to one aspect of the present invention, a determination device includes acquisition means for acquiring, from a user device, user information indicating the position of the user device and the direction of the user device at the position; area value determination means for determining the area value of based on the number of user devices satisfying predetermined conditions in the plurality of areas; and a presentation surface value indicating the value of the information presentation surface when the information presentation surface is used for information presentation are the area value of the first area where the information presentation surface exists among the plurality of areas, the position and direction indicated by the user information acquired from the user device in the first area, and the information presentation surface It is characterized by comprising presentation aspect value judgment means for judging based on the position and direction.

According to the present invention, the value of information presentation can be determined.

1 is a configuration diagram of a system including a determination device according to one embodiment; FIG. The block diagram of the determination apparatus by one Embodiment. FIG. 4 is a diagram showing an example of division of a determination target area; Explanatory drawing of the calculation method of an intermediate value. FIG. 4 is an explanatory diagram of a method of calculating the value of an information presentation surface according to one embodiment; FIG. 4 is an explanatory diagram of a method of calculating the value of an information presentation surface according to one embodiment; FIG. 4 is an explanatory diagram of a method of calculating the value of an information presentation surface according to one embodiment;

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. It should be noted that the following embodiments do not limit the invention according to the claims, and not all combinations of features described in the embodiments are essential to the invention. Two or more of the features described in the embodiments may be combined arbitrarily. Also, the same or similar configurations are denoted by the same reference numerals, and redundant explanations are omitted.

FIG. 1 is a configuration diagram of a system including a determination device 1 according to this embodiment. The decision device 1 is configured to be able to communicate with one or more base stations (BS). The determination device 1 shown in FIG. 1 is configured to be able to communicate with two BSs, BS21 and BS22. BS21 provides cell31 and can communicate with UE41 and UE42 located in cell31. Similarly, BS 22 may serve cell 32 and communicate with UE 43 located in cell 32 . Note that the number of BSs with which the determination device 1 communicates may be one or three or more. Each BS serves a cell and can communicate with one or more UEs serving the serving cell. In the following description, an area including cells provided by the BS with which the determination device 1 communicates is called a determination target area. For example, in FIG. 1, the area including the cell 31 and the cell 32 is the determination target area.

An AR (augmented reality) application according to the present embodiment is installed in UE41 to UE43 (hereinafter simply referred to as UE). When the user of the UE is executing (activating) the AR application, the UE acquires user information by user operation, for example, and sends the user Send information.

User information includes location information, direction information and time information. Here, the location information is information indicating the location of the UE, such as the latitude and longitude of the UE, or the latitude, longitude and altitude of the UE. The UE can obtain the location information of the UE, for example, through GPS functionality. The direction information is information indicating the direction of the UE. In addition, in this embodiment, the direction of the camera of the UE or the line-of-sight direction of the user of the UE is defined as the direction of the UE. For example, when the user uses the camera function of the UE to focus the camera in a certain direction, the optical axis direction of the lens of the camera can be obtained as direction information indicating the direction of the UE. In addition, when the UE includes smart glasses that work in conjunction with an AR application and the user wears the smart glasses, the direction of the smart glasses, that is, the line-of-sight direction of the user wearing the smart glasses is indicated as direction information. can be obtained as The position information and direction information included in the user information that the UE transmits to the determination device 1 are obtained at the same timing, and the time information included in the user information is the time when the position information and direction information are obtained. This is time information. Each time the UE acquires this user information, the UE transmits the acquired user information to the determination device 1 via the BS.

FIG. 2 is a configuration diagram of the determination device 1. As shown in FIG. The storage unit 11 stores user information received from the UE. The storage unit 11 also stores information indicating divided areas into which the determination target area is divided and information presentation surfaces in each divided area.

FIG. 3 shows divided areas obtained by dividing the determination target area. According to FIG. 3, the determination target area is divided into nine divided areas #1 to #9. Note that the number of divisions is not limited to nine. Also, in FIG. 3, each divided area is rectangular, but the shape of the divided area is not limited. The information presentation surface is a surface on which advertisements can be displayed, such as a side surface of a building existing in each divided area, a virtual surface set in a space above the building, or the like. The information indicating the information presentation surface is information specifying the area occupied by the information presentation surface, that is, for example, the position (latitude, longitude, altitude, etc.) along the outer periphery of the information presentation surface. The information presentation surface for which the value is to be determined is determined in advance, and data indicating the determined information presentation surface is stored in the storage unit 11 in advance.

The determination device 1 of the present embodiment performs value determination processing for determining the value of each information presentation surface in units of a predetermined period. The predetermined period can be, for example, one day. Alternatively, the predetermined period can be half a day, for example. Hereinafter, the predetermined period during which the value determination process is performed will be referred to as a processing period. The determination device 1 can repeat the value determination process for each processing period.

The area value determination unit 12 calculates the area value S _k of the divided area #k (k is an integer from 1 to 9 in this example) during the processing period. Therefore, the area value determining unit 12 obtains the number of active users Ak during the processing period for each divided area _#k . The number of active users A _k in the divided area #k is obtained based on the number of UEs that have activated the AR application in the divided area #k. For example, the area value determination unit 12 calculates the statistical value such as the average value, the maximum value, or the minimum value over the processing period of the number of UEs that have started the AR application in the divided area _#k . can be Alternatively, the area value determination unit 12 can set the number of UEs in the divided area #k that have started the AR application at the end or start of the processing period as the number of active users _Ak . Note that the number of UEs that have transmitted user information to the determination device 1 after activating the AR application in the divided area _#k can also be set as the number of active users Ak.

FIG. 3 also shows the numbers A ₁ to A ₉ of active users in the segmented areas #1 to #9 during a certain processing period. According to FIG. 3, the number of active users A1 in segment # ₁ is ten, and the number of active users A2 in segment # ₂ is thirty. The area value determination unit 12 calculates the area value S _k of a given divided area #k using the following formula (1).
S _k =X×(A _k −A _min )/(A _max −A _min ) (1)
Note that A _min is the minimum value of A ₁ to A ₉ and is 10 (divided region #1) in the example of FIG. A _max is the maximum value of A ₁ to A ₉ and is 100 (divided area #9) in the example of FIG. Also, X is a predetermined coefficient. From equation (1), the area value S _k is a value between 0 and X, and increases as the number of active users A _k increases.

The presentation surface value determination unit 13 determines the value V of each information presentation surface stored in the storage unit 11 . The value V of the information presentation surface is determined independently for each divided area. Calculation of the value V of one information presentation surface present in one divided area will be described below. In the following description, "information presentation surface" means an information presentation surface to be evaluated for value V, and "divided area" is a divided area on which the information presentation surface to be evaluated for value V exists. shall mean The presentation surface value determination unit 13 calculates the median value Y for the information presentation surface for each piece of user information acquired from the UE in the divided area within the processing period. Then, within the processing period, the average value of the intermediate values Y obtained for each piece of user information acquired from the UE in the divided area is multiplied by the area value S of the divided area to obtain the information presentation value V.

FIG. 4 is an explanatory diagram of a method of calculating the median value Y for one piece of user information. In FIG. 4, reference numeral 55 is the position indicated by the position information included in the user information. Reference numeral 51 denotes a unit vector (hereinafter referred to as line-of-sight vector G) corresponding to the direction indicated by the direction information included in the user information. Further, reference numeral 52 is a unit vector (hereinafter referred to as reverse line-of-sight vector Gr) in the direction opposite to the direction indicated by the direction information included in the user information. The position 55, the line-of-sight vector G, and the line-of-sight reverse vector Gr are specified from the user information obtained from the UE.

In this embodiment, the position of the information presentation surface is defined as the barycentric position of the information presentation surface. However, any position of the information presentation surface can be defined as the position of the information presentation surface. Further, in this embodiment, the direction of the information presentation surface is defined as the direction perpendicular to the information presentation surface and in which the information presentation surface faces. In other words, if the information presentation surface is the exterior side surface of the building, the direction of the information presentation surface is the direction perpendicular to the side surface and directed from the interior to the exterior of the building. In addition, when the information presentation surface is in a space area where there is no object occupying the space, the direction perpendicular to the information presentation surface and from the side where the advertisement is not displayed to the side where the advertisement is displayed is the information presentation surface. It is the direction of the face. The direction and position of the information presentation surface can be obtained from the data representing the information presentation surface. Alternatively, the direction and position of the information presentation surface may be obtained in advance and stored in the storage unit 11 in association with the information presentation surface. Reference numeral 53 is a unit vector in the direction of the information presentation surface (hereinafter referred to as normal vector N). Further, a straight line 56 is a straight line connecting the position 55 indicated by the position information and the position (center of gravity) of the information presentation surface, and reference numeral 54 is a unit vector (hereinafter referred to as connection vector C). The straight line 56 and connection vector 54 can be determined based on the position indicated by the position information and the position of the information presentation surface.

The presentation face value determination unit 13 calculates the median value Y based on the following formula (2).
Y=α×f(N・C)+β×f(C・Gr) (2)
α and β in equation (2) are predetermined coefficients. For example, α and β can be determined such that α+β=1. N·C indicates the inner product of the normal vector N and the connection vector C, and C·Gr indicates the inner product of the connection vector C and the line-of-sight inverse vector Gr. Also, the function f(x) is a function that becomes x when x is 0 or more, and becomes 0 when x is less than 0 (negative value).

Since the normal vector N, connection vector C, and line-of-sight inverse vector Gr are all unit vectors, the value of the inner product is 1 when the angle between the two vectors is 0, and decreases as the angle increases. Therefore, f(N·C) is 1 when the angle between the normal vector N and the connection vector C is 0, and is 0 when the angle is 90 degrees or more. decreases as the angle increases. The same applies to f(C·Gr). Therefore, the median value Y becomes the largest when the normal vector N, the connection vector C, and the line-of-sight inverse vector Gr all have the same direction. This means that the UE is positioned on a straight line that passes through the center of gravity of the information presentation surface and is perpendicular to the information presentation surface, and that the direction information is the direction toward the center of gravity of the information presentation surface. This corresponds to viewing the position of the center of gravity of the presentation surface. Then, the intermediate value Y becomes smaller when the position of the UE deviates from the straight line passing through the center of gravity of the information presentation surface and perpendicular to the information presentation surface, or when the direction indicated by the direction information deviates from the direction toward the center of gravity of the information presentation surface. Become. Here, the median value Y becomes smaller as the deviation amount becomes larger. Note that α and β are weights determined depending on whether the position of the UE is emphasized or the line-of-sight direction is emphasized. That is, α is made larger than β when the position of the UE is important, and β is made larger than α when the direction of the line of sight is important. Also, either α or β can be set to 0. That is, it is also possible to adopt a configuration in which the intermediate value is calculated based only on f(N·C) or f(C·Gr). The inner product value is set to 0 when the angle between the two vectors exceeds 90 degrees using the function f(x). It is. Note that the intermediate value may be calculated using pure inner product values without using the function f(x).

As described above, the intermediate value Y is a value obtained for each user information acquired from the UE. The presentation surface value determination unit 13 obtains the median value Y for each piece of user information acquired from the UE in the divided area within the processing period, and multiplies the average value by the area value S of the divided area to obtain the information presentation surface value V judge.

Below, the determination device 1 acquires three pieces of user information (first user information to third user information) from the UE in the divided area during a certain processing period. How to calculate is explained. 5(A) to 5(C) respectively show the information presentation surface for determining the value V, its normal vector N, and the connection vector C and line of sight determined based on the first user information to the third user information. A vector G is shown. Note that the line-of-sight inverse vector Gr is omitted for simplification of the drawing.

As shown in FIG. 5A, the angle between the connection vector C and the normal vector N determined based on the first user information is 60 degrees, and the angle between the connection vector C and the line-of-sight vector G is 180 degrees. That is, the angle between the connection vector C and the line-of-sight inverse vector Gr is 0 degrees. As shown in FIG. 5B, the angle between the connection vector C and the normal vector N determined based on the second user information is 60 degrees, and the angle between the connection vector C and the line-of-sight vector G is 120 degrees. That is, the angle between the connection vector C and the line-of-sight inverse vector Gr is 60 degrees. As shown in FIG. 5C, the angle between the connection vector C and the normal vector N determined based on the third user information is 0 degrees, and the angle between the connection vector C and the line-of-sight vector G is 180 degrees. That is, the angle between the connection vector C and the line-of-sight inverse vector Gr is 0 degrees.

As shown in FIG. 6, since the angle between the connection vector C and the normal vector N obtained from the first user information is 60 degrees, the inner product value (N·C) is 0.5. Also, since the angle between the connection vector C and the line-of-sight inverse vector G is 0 degrees, the value of the inner product (C·Gr) is 1. Since the inner product values are both greater than 0, f(N·C) and f(C·Gr) are the same as the inner product values. In this case, if α=β=0.5, the intermediate value Y corresponding to the first user information is 0.5×0.5+0.5×1=0.75. Similarly, the median value Y obtained from the second user information is 0.5, and the median value Y obtained from the third user information is 1. Therefore, the average value of the intermediate values Y is 2.25/3, and if the area value S is 100, the information presentation value V is determined to be 225/3.

As described above, the intermediate value Y for the information presentation surface is obtained for each piece of user information. The median value Y is a value that increases as the user of the UE that has transmitted the user information pays more attention to the information presentation surface. Therefore, by obtaining the average value of the intermediate values Y obtained from the user information obtained during the processing period, it is possible to obtain the average attention degree of the information presentation surface during the processing period. Also, the area value S is obtained during the processing period. The area value S is a value that increases as the number of users using the AR application increases. Then, in this embodiment, the value V of the information presentation surface is calculated as the product of the average value of the intermediate values Y obtained for the information presentation surface and the area value S of the divided area in which the information presentation surface exists. . The value of the information presentation surface increases as the number of users using the AR application increases, and the average degree of attention increases. Whether or not it is useful can be determined quantitatively.

<Second embodiment>
Next, the second embodiment will be described, focusing on differences from the first embodiment. In calculating the value V of the information presentation surface in the first embodiment, the distance between the UE and the information presentation surface was not considered. In this embodiment, the value V of the information presentation surface is calculated in consideration of the distance between the UE and the information presentation surface.

First, the maximum distance L _max is obtained in advance for each divided area, and the maximum distance L _max is stored in the storage unit 11 in association with the divided area. The maximum distance L _max of the divided area is the longest straight line distance connecting any two points in the divided area. For example, if the shape of the divided area is a square as shown in FIG. 3, the _maximum distance Lmax is the length of the diagonal line. The presentation surface value determination unit 13 obtains the length L of the straight line 56 (FIG. 4) connecting the position 56 indicated by the position information and the center of gravity of the information presentation surface, and obtains the coefficient γ by the following equation (3).
γ=L/ _Lmax (3)
Then, the presentation face value determination unit 13 calculates the median value Y using the following equation (4).
Y=γ×(α×f(N・C)+β×f(C・G)) (4)
For example, assume that the distance L in FIGS. 5A and 5B is 2, the distance L in FIG. 5C is 1, and the maximum distance L _max is 4√2. In this case, γ in the first user information and the second user information is 2/(4√2)=√2/4 as shown in FIG. γ in the third user information is 1/(4√2)=√2/8 as shown in FIG. Therefore, if α=β=0.5, the intermediate value Y corresponding to the first user information is 0.75×√2/4=3√2/16. Similarly, the intermediate value Y obtained from the second user information is 0.5×√2/4=√2/8, and the intermediate value Y obtained from the third user information is 1×√2/8=√2/ 8. Therefore, the average value of the intermediate values Y is 7√2/48, and if the area value S is 100, the information presentation value V is determined to be 700√2/48=175√2/12.

In this embodiment, the coefficient γ is a value between 0 and 1, and increases as the distance between the UE and the information presentation surface increases. This corresponds to evaluating the value of an information presentation surface that attracts attention even from a distance. An information presentation surface that attracts attention even from a distance has a high utility value as information presentation, and this configuration allows the value of the information presentation surface to be quantitatively determined.

<Other embodiments>
In each of the above embodiments, the normal vector N, the connection vector C, and the inverse line-of-sight vector Gr are unit vectors, that is, vectors having the same length. The length (size) can be different. That is, the length of the vector among the normal vector N, the connection vector C, and the line-of-sight inverse vector Gr that is emphasized in calculating the value can be made longer than the length of the other vectors.

Note that the determination device 1 can repeat calculating the value V of each information presentation surface during the processing period. For example, by setting the processing period to one day, the value of each information presentation aspect on weekdays and the value of each information presentation aspect on holidays can be determined. Furthermore, by setting the processing period to half a day, it is possible to determine the value of each information presentation aspect in the daytime time zone and the nighttime time zone.

The determination device 1 according to the present invention can be realized by, for example, a program that causes the device to function and operate as the determination device 1 when executed by one or more processors of a device such as a computer. These computer programs can be stored in a computer-readable storage medium or distributed via a network.

The invention is not limited to the above embodiments, and various modifications and changes are possible within the scope of the invention.

11: storage unit, 12: area value determination unit, 13: presentation surface value determination unit

Claims (15)

acquisition means for acquiring user information indicating the position of the user device and the direction of the user device at the position from the user device;
an area value determining means for determining an area value of each of a plurality of predefined areas based on the number of user devices satisfying a predetermined condition in the plurality of areas;
The presentation surface value indicating the value of the information presentation surface when the information presentation surface is used for information presentation is defined as the area value of the first area in which the information presentation surface exists among the plurality of areas, and the first presentation surface value determination means for determining based on the position and direction indicated by the user information acquired from the user device in the region and the position and direction of the information presentation surface;
A determination device characterized by comprising: 2. The determination device according to claim 1, wherein the position of the information presentation surface is the position of the center of gravity of the information presentation surface, and the direction of the information presentation surface is a direction orthogonal to the information presentation surface. . a first inner product value obtained based on the inner product of a first vector pointing from the position of the center of gravity to the position indicated by the user information and a second vector in a direction opposite to the direction indicated by the user information; and a second inner product value obtained based on the inner product of the first vector and a third vector in the direction of the information presentation surface. 3. The determination device according to claim 2. 4. The apparatus according to claim 3, wherein lengths of said first vector, said second vector and said third vector are the same. The first inner product value is a value of the inner product of the first vector and the second vector when the inner product of the first vector and the second vector is a value of 0 or more; is 0 if the inner product with the two vectors is less than 0;
The second inner product value is a value of the inner product of the first vector and the third vector when the inner product of the first vector and the third vector is a value of 0 or more; 5. The determination device according to claim 3, wherein an inner product with three vectors is zero if the value is less than zero. The presentation surface value determination means obtains a weighted sum of the first inner product value and the second inner product value as an intermediate value for each of the user information, and an average value of the intermediate values obtained for each of the user information, 6. The determination device according to any one of claims 3 to 5, wherein the presentation surface value is determined based on the area value of the first area. The presentation surface value determination means determines the presentation surface value of the information presentation surface based on the first inner product value, the second inner product value, and the distance between the position of the center of gravity and the position indicated by the user information. The determination device according to any one of claims 3 to 5, characterized in that: For each of the user information, the presentation surface value determination means obtains, as an intermediate value, a value obtained by multiplying a weighted sum of the first inner product value and the second inner product value by a value proportional to the distance. 8. The determination device according to claim 7, wherein the presentation surface value is determined based on the average value of the intermediate values obtained for each and the area value of the first area. 9. The determination device according to claim 7, wherein the value proportional to the distance is a ratio of the distance to a maximum distance connecting any two points in the first area. The determination device according to any one of claims 1 to 9, wherein the user device satisfying the predetermined condition is a user device executing a predetermined application. The area value determination means determines the number of user devices that satisfy the predetermined condition for each of the plurality of areas, and determines the area value of the first area for each of the plurality of areas by the user under the predetermined condition determined for each of the plurality of areas. 11. The method according to any one of claims 1 to 10, wherein the determination is made based on the maximum and minimum number of devices and the number of user devices satisfying the predetermined condition determined for the first area. judgment device. 12. The determination device according to any one of claims 1 to 11, wherein the area value of an area increases as the number of user devices satisfying the predetermined condition in the area increases. The area value determination means determines the area value of each of the plurality of areas based on the number of user devices satisfying the predetermined condition within a predetermined period,
13. The presentation aspect value determination means determines the presentation aspect value based on the user information acquired from the user device in the first area within the predetermined period of time. The determination device according to . The determination device according to any one of claims 1 to 13, wherein the direction of the user device is a direction of a camera of the user device or a direction of a line of sight of a user of the user device. A program, characterized in that, when executed on said one or more processors of a device having one or more processors, it causes said device to function as a determination device according to any one of claims 1 to 14.

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