JP2019109725A - Recommendation system - Google Patents

Abstract

To activate communication between users in a vehicle.SOLUTION: A recommendation system according to one embodiment comprises: a plurality of content reproduction devices installed in each seat in a vehicle; a preference information collection unit for collecting preference information of a user seated in each seat; a content selection unit for selecting common content that both a target user and another user prefer based on the preference information of the target user who is seated in the target seat and the preference information of another user who is seated in another seat different from the target seat; and a recommendation unit for recommending the common content to the target user by displaying the common content on a recommendation screen of a content reproduction apparatus installed in the target seat.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a recommendation system.

  In recent years, vehicles equipped with a content reproduction device capable of reproducing content such as video and music for each seat have been sold. In such a vehicle, a user seated in each seat can reproduce and enjoy his / her favorite content with the content reproduction device installed in his / her seat. In addition, a method has also been proposed for recommending each user the content according to the preference of the user.

JP, 2015-138500, A

  However, in the above-described conventional vehicle, there is a problem that it is difficult to communicate with other users because it is not possible to know what other users are playing back. In addition, even if the content being played back by another user is known, there is also a problem that the conversation is not excited even if the content is triggered when the content is not interested in the content.

  The present invention has been made in view of the above problems, and has an object of activating communication between users in a car.

  The recommendation system according to one embodiment includes a plurality of content reproduction devices installed in each seat of a vehicle, a preference information collection unit that collects preference information of a user seated in each seat, and a target user seated in a target seat Content selection for selecting common content that both the target user and the other user like based on the preference information and the preference information of another user who is seated at another seat different from the target seat A recommendation unit for recommending the common content to the target user by displaying the common content on a recommendation screen of the content reproduction apparatus installed in the target seat.

  According to each embodiment of the present invention, communication between users in a car can be activated.

The figure which shows an example of a structure of a recommendation system. The figure which shows an example of the hardware constitutions of a recommendation server. The figure which shows an example of a function structure of a recommendation system. The figure which shows an example of a recommendation screen. The figure which shows an example of operation | movement of a recommendation system. The figure which shows an example of a recommendation screen. The figure which shows an example of a recommendation screen. The figure which shows an example of a recommendation screen. The figure which shows an example of a recommendation screen.

  Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. In addition, regarding the description of the specification and drawings according to each embodiment, the same reference numerals are given to components having substantially the same functional configuration, and the overlapping description will be omitted.

  A recommendation system 100 according to an embodiment will be described with reference to FIGS. 1 to 9. The recommendation system 100 according to the present embodiment is applied to a vehicle V in which the content reproduction device 2 is installed in each seat S. A plurality of content reproduction devices 2 may be installed in the vehicle V, and the content reproduction devices 2 do not need to be installed in all the seats S. The recommendation system 100 uses the recommendation screen of the content reproduction device 2 installed in a certain seat to recommend the user who is seated in the relevant seat by recommending the content that both the user and other users like. Provide a common topic with other users, and activate communication between users in the car.

  First, the configuration of the recommendation system 100 will be described. FIG. 1 is a diagram showing an example of the configuration of the recommendation system 100. As shown in FIG. In the example of FIG. 1, it is assumed that the recommendation system 100 has four seats S1 to S4 and is applied to a vehicle V in which the content reproduction devices 21 to 24 are installed in each of the seats S1 to S4. Users U1 to U4 of the content reproduction devices 21 to 24 are seated at the respective seats S1 to S4. Hereinafter, when the seats S1 to S4, the content reproduction devices 21 to 24, and the users U1 to U4 are not distinguished from one another, they are referred to as a seat S, a content reproduction device 2 and a user U, respectively. The number of seats S of the vehicle V is not limited to four. In addition, the seat S may include an empty seat.

  The recommendation system 100 of FIG. 1 includes a recommendation server 1, content reproduction devices 21 to 24, a relay device 3, and a content distribution server 4.

  The recommendation server 1 is a server that recommends content to each user, and is configured by one or more server computers. The recommendation server 1 is connected to the network N by wire or wirelessly, and communicates with the relay device 3 and the content distribution server 4 via the network N. The network N is a network including the Internet and a LAN (Local Area Network). In the example of FIG. 1, it is assumed that the recommendation server 1 is a cloud server provided outside the vehicle V. However, the recommendation server 1 may be mounted on the vehicle V.

  The content reproduction device 2 is a computer capable of reproducing content. Content includes movies, music, news, videos, games and the like. The content reproduction device 2 is installed in each seat S of the vehicle V.

  The relay device 3 is a communication device that relays communication between each content reproduction device 2 and an external device (the recommendation server 1 and the content distribution server 4). The relay device 3 is connected to each content reproduction device 2 by wire and is connected to the network N by wireless. Although it is assumed in the example of FIG. 1 that the relay device 3 is provided separately from each content reproduction device 2, any one of the content reproduction devices 2 may have the function of the relay device 3.

  The content distribution server 4 is a server that distributes content to be reproduced by the content reproduction apparatus 2, and is configured of one or more server computers. The content distribution server 4 is connected to the network N by wire or wirelessly, and communicates with the recommendation server 1 and the relay device 3 via the network N. The content distributed by the content distribution server 4 is provided to the content reproduction device 2 via the network N and the relay device 3.

  Next, the hardware configuration of the recommendation system 100 will be described. FIG. 2 is a diagram showing an example of a hardware configuration of the recommendation server 1. The recommendation server 1 shown in FIG. 2 displays a central processing unit (CPU) 101, a read only memory (ROM) 102, a random access memory (RAM) 103, a hard disk drive (HDD) 104, an input device 105, and And a device 106. In addition, the recommendation server 1 includes a communication interface 107 and a bus 108.

  The CPU 101 executes each program to control each configuration of the recommendation server 1 to realize the function of the recommendation server 1.

  The ROM 102 stores programs executed by the CPU 101 and various data.

  The RAM 103 provides the CPU 101 with a work area.

  The HDD 104 stores programs executed by the CPU 101 and various data.

  The input device 105 inputs information according to the user's operation into the recommendation server 1. The input device 105 may be a touch panel, a keyboard, a mouse, a hardware button or the like.

  The display device 106 displays a screen according to the user's operation. The display device 106 may be a liquid crystal display, an organic EL (Electro Luminescence) display, or the like.

  The communication interface 107 connects the recommendation server 1 to the network N, and controls communication with an external device (the relay device 3 or the content distribution server 4) via the network N.

  The bus 108 mutually connects the CPU 101, the ROM 102, the RAM 103, the HDD 104, the input device 105, the display device 106, and the communication interface 107.

  In addition, although the case where recommendation server 1 is comprised by one server computer is assumed in the example of FIG. 1, as above-mentioned, recommendation server 1 may be comprised by several server computer. In addition, the recommendation server 1 may be configured by a microcomputer, a PC, a smartphone, a tablet terminal, or the like. The hardware configurations of the content reproduction device 2, the relay device 3, and the content distribution server 4 are the same as those of the recommendation server 1, and therefore the description thereof is omitted. However, the relay device 3 may not include the display device.

  Next, the functional configuration of the recommendation system 100 will be described. FIG. 3 is a diagram showing an example of a functional configuration of the recommendation system 100. As shown in FIG. The recommendation system 100 of FIG. 3 includes display control units 11 a to 11 d, a preference information collection unit 12, a content storage unit 13, a content selection unit 14, and a recommendation unit 15.

  The display control units 11 a to 11 d are realized when the CPUs of the content reproduction devices 21 to 24 execute programs, and cause the display devices of the content reproduction devices 21 to 24 to display various screens. In the present embodiment, the display control units 11a to 11d display a home screen, a content reproduction screen, a setting screen, and a recommendation screen. The recommendation screen will be described later. Hereinafter, when the display control units 11 a to 11 d are not distinguished from one another, they are referred to as the display control unit 11.

  The preference information collecting unit 12 collects preference information of each user U who is seated in each seat S. The preference information of the user U is information indicating the preference (object of interest) of the user U. The preference information collection unit 12 is realized by the CPU of the relay device 3 executing a program. In the example of FIG. 3, the preference information collection unit 12 collects preference information of each of the users U1 to U4.

  The preference information collection unit 12 collects, for example, content information of content reproduced by each content reproduction device 2 as preference information of the user U of each content reproduction device 2. The content information includes attribute information indicating an attribute of the content and data of the content itself. The attribute information includes tag information attached to the content, a title of the content, and the like. When the content reproduced by the content reproduction device 2 is text data such as news, the preference information collection unit 12 may collect keywords extracted from the text data as preference information. Further, when the preference information collection unit 12 can communicate with the mobile terminal (smartphone, tablet terminal, mobile phone, notebook PC (Personal Computer), etc.) of each user U, the information acquired from the mobile terminal of each user U is , And may be collected as preference information of each user U.

  The content storage unit 13 stores content information of a plurality of contents that can be distributed to the content reproduction device 2. The content storage unit 13 is realized by the HDD of the content distribution server 4 or the like. The content distribution server 4 transmits the content information stored in the content storage unit 13 to the content reproduction device 2 in response to the request from the content reproduction device 2 (distributes the content). Thereby, the user U of the content reproduction apparatus 2 can reproduce and enjoy desired content on the content reproduction apparatus 2 installed in his / her seat S.

  The content selection unit 14 is common among the plurality of contents stored in the content storage unit 13 based on the preference information of the target user and preference information of other users collected by the preference information collection unit 12. Select content The target user is the user U who is the recommendation target of the common content. The seat S of the target user is referred to as a target seat. The other user is the user U who is seated at a seat S different from the target seat and is different from the target user. The common content is content that the target user and other users prefer (interest in). The content selection unit 14 is realized by the CPU 101 of the recommendation server 1 executing a program.

  Specifically, the content selection unit 14 calculates the preference degree of the target user for each of the plurality of contents stored in the content storage unit 13 based on the preference information of the target user. More specifically, the content selection unit 14 calculates the similarity between the content information of each content stored in the content storage unit 13 and the preference information of the target user as the preference degree of the target user for each content.

  Similarly, the content selection unit 14 calculates the degree of preference of another user for each of the plurality of contents stored in the content storage unit 13 based on preference information of the other user. More specifically, the content selection unit 14 calculates the similarity between the content information of each content stored in the content storage unit 13 and the preference information of the other user as the preference degree of the other user for each content Do.

  This is because it is considered that the degree to which the user U prefers (has interest) is higher as the content having the content information having the higher similarity to the preference information of the user U. At this time, it is preferable that the content selection unit 14 calculates the preference degree after weighting each preference information. This is because it is considered that the preference information obtained more frequently and the preference information obtained more frequently are considered to reflect the preference of the user U more strongly. By calculating the preference degree after giving a large weight to such preference information, it is possible to calculate the preference degree close to the actual preference degree of the user U. In addition, the existing arbitrary methods can be used as a calculation method of preference degree (similarity degree).

  Then, the content selection unit 14 selects, as common content, content having a high degree of preference of the target user and other users from among the plurality of contents stored in the content storage unit 13. The content selection unit 14 may select, for example, content having the largest sum of preference degrees of the target user and other users as common content. In this case, the content selection unit 14 may select common content for each set of users U, not for each set of target user and other users. That is, when the common contents of the user Ux (target user) and the user Uy (other users) are selected, the common contents of the user Uy (target user) and the user Ux (other users) may not be selected. This does not weight the preference degree of the target user and other users, the common contents of the user Ux (target user) and the user Uy (other users), the user Uy (target user) and the user Ux (other users) The common content of) is the same. By selecting the common content for each set of users U, it is possible to halve the processing required to select the common content, as compared to the case where the common content is selected for each target user and another set of users.

  Also, the content selection unit 14 may select the content with the largest sum of the weighted degrees of preference of the target user and other users as common content. The content selection unit 14 selects common content that more strongly reflects the preference of the target user or another user by selecting common content after giving a large weight to the preference degree of the target user or another user Can.

  Here, it is assumed that the target user is the user U1 and the other user is the user U2. In this case, the content selection unit 14 calculates the preference degree of the user U1 for each content stored in the content storage unit 13 based on the preference information of the user U1. Similarly, the content selection unit 14 calculates the preference degree of the user U2 for each content stored in the content storage unit 13 based on the preference information of the user U2. Then, the content selection unit 14 selects the common content of the users U1 and U2 based on the preference degree of the users U1 and U2 calculated for each content.

  Note that the method of selecting the common content is not limited to the above example. The content selection unit 14 can select the common content using any existing method.

  The recommendation unit 15 recommends the common content to the target user by displaying the common content of the target user selected by the content selection unit 14 on the recommendation screen of the content reproduction device 2 installed in the target seat. The recommendation unit 15 is realized by the CPU 101 of the recommendation server 1 executing a program. Specifically, the recommendation unit 15 recommends the common content by displaying an icon indicating the common content on the recommendation screen.

  Here, the recommendation screen displayed on the content reproduction apparatus 2 will be described. FIG. 4 is a diagram showing an example of the recommendation screen. The recommendation screen of FIG. 4 corresponds to the recommendation screen displayed on the content reproduction device 2a installed in the seat S1.

  The recommendation screen of FIG. 4 has display areas R1 to R4 corresponding to the respective seats S1 to S4 of the vehicle V. The display areas R1 to R4 are arranged to correspond to the seats S1 to S4, respectively. For example, in the example of FIG. 1, since the seat S1 is located at the upper left of the vehicle V, the display area R1 corresponding to the seat S1 is disposed at the upper left of the recommendation screen, as shown in FIG. The same applies to the display regions R2 to R4.

  Information on the users U1 to U4 is displayed in the display areas R1 to R4, respectively. Specifically, the history information of the content reproduced by the user U of the own device is displayed in the display area R corresponding to the seat S in which the own device (content reproduction device 2) is installed. In the example of FIG. 4, icons ic11 to ic14 indicating contents reproduced by the user U1 are displayed as history information of the contents reproduced by the user U1 in the display area R1 corresponding to the seat S1 in which the content reproduction device 2a is installed. It is done. The icon closer to the center of the recommendation screen indicates the newly reproduced content. At the center of the recommendation screen, an icon ic01 indicating the content currently played by the user of the own apparatus is displayed. The content being reproduced includes not only the content being actually reproduced but also the content being paused and the content whose next content has not been reproduced after the completion of the reproduction of the content.

  Also, in the display area R corresponding to another seat different from the seat S in which the own device is installed, history information of the common content with the user U who is seated in the other seat recommended to the user U of the own device Is displayed. For example, in the example of FIG. 4, in the display area R2 corresponding to the seat S2 different from the seat S1 in which the content reproduction device 2a is installed, the common content with the user U2 seated in the seat S2 recommended to the user U1. The icons ic21 to ic24 indicating the common content recommended to the user U1 are displayed as the history information of. The icon closer to the center of the recommendation screen indicates the newly recommended common content. The icon ic21 corresponds to the icon indicating the most recently recommended common content.

  The user U1 can easily grasp common contents with other users U2 to U4 by confirming the recommendation screen as shown in FIG. Preferably, the icons displayed on the recommendation screen can reproduce the corresponding content by a selection operation (tap or click).

  Next, the operation of the recommendation system 100 will be described. FIG. 5 is a diagram showing an example of the operation of the recommendation system 100. As shown in FIG.

  The preference information collection unit 12 collects preference information of each user U periodically or at a predetermined timing (step S101). As the predetermined timing, for example, the timing when any user U played back a new content, or the timing when any content playback device 2 was activated can be considered. When the preference information collection unit 12 collects preference information of each user U, the preference information collection unit 12 transmits the collected preference information to the recommendation server 1 via the network N.

  When the recommendation server 1 receives preference information of each user, the content selection unit 14 stores the received preference information, and selects a target user from among the plurality of users U who board the vehicle V (step S102).

  Next, the content selection unit 14 selects another user from the plurality of users U who board the vehicle V among the users U other than the target user (step S103).

  Subsequently, the content selection unit 14 receives, from the content distribution server 4, content information to be used for selection of common content, and based on the received content information and preference information of the target user and other users, The common content is selected from the plurality of contents stored in the storage unit 13 (step S104). Thereby, the common content to which both the target user selected in step S102 and the other users selected in step S103 prefer is selected.

  Thereafter, the content selection unit 14 confirms whether all the users U other than the target user among the plurality of users U who board the vehicle V are selected as other users (step S105). When there is an unselected user U as another user (NO in step S105), the content selection unit 14 selects the unselected user U as another user as the next other user (step S103).

  On the other hand, when all the users U other than the target user among the plurality of users U who board the vehicle V are selected as another user (YES in step S105), all the users U who board the vehicle V are target users. It is confirmed whether it has been selected (step S106). When there is an unselected user U as a target user (NO in step S106), the content selection unit 14 selects an unselected user U as a target user as a next target user (step S102).

  On the other hand, when all the users U who board the vehicle V are selected as the target users (YES in step S106), the content selection unit 14 passes the selection result of the common content to the recommendation unit 15. The selection result of the common content includes information indicating the common content for each of the target user and the other users.

  When the recommendation unit 15 receives the selection result of the common content from the content selection unit 14, the recommendation unit 15 transmits the selection result to each content reproduction device 2 via the network N and the relay device 3 (step S107). Specifically, the recommendation unit 15 selects the user U1 as the target user, that is, the information indicating the common contents of the user U1 (target user) and the users U2 to U4 (other users). Send to The same applies to the selection results for the users U2 to U4 as target users.

  When each content reproduction device 2 receives the selection result, each display control unit 11 updates the common content recommended to the user U of the own device according to the selection result. Specifically, the icon indicating the most recently recommended common content is updated to an icon indicating new common content according to the received selection result. Thus, when the user U displays the recommendation screen, an icon indicating a new common content is displayed in each display area R as an icon indicating the most recently recommended common content. That is, the new common content is recommended to the user U.

  Here, the change of the recommendation screen will be specifically described. 6 and 7 are diagrams showing an example of the recommendation screen displayed on the content reproduction device 2a. As described above, in the display area R1 of the recommendation screen of the content reproduction apparatus 2a, an icon indicating the content reproduced by the user U1 is displayed, and in the display area R2, the common content of the users U1 and U2 recommended by the user U1 Is displayed, and at the center is displayed an icon indicating the content being played by the user U1.

  In the example of FIG. 6, the user U1 is reproducing "Caribbean resort" and has reproduced "reproduction content A" to "reproduction content D" in the past, and "beach yoga" as common content with the user U2 Are recommended in the most recent time, and "common content A" to "common content C" are recommended in the past as common content with the user U2.

  When the user U1 selects and operates the icon of "beach yoga" in the state of FIG. 6, the display control unit 11a switches the recommendation screen to the content reproduction screen, and reproduces "beach yoga". Thereafter, when the user U1 displays the recommendation screen, as shown in FIG. 7, the content being reproduced becomes "beach yoga", and the "Caribbean resort" is displayed in the display area R1 as the content reproduced in the past.

  In addition, when the user U1 reproduces "beach yoga", the preference information collection unit 12 collects content information of "beach yoga" as preference information of the user U1, and transmits it to the content selection unit 14. When the content selection unit 14 receives new preference information of the user U1, it updates the common content in which the user U1 is the target user or another user based on the preference information, and the updated common content is updated in the recommendation unit 15 Transmits to the content reproduction devices 2a to 2d. When the display control unit 11a of the content reproduction device 2a receives a new common content, the display control unit 11a causes the common screen to be displayed on the recommendation screen as the most recently recommended common content.

  As a result, as shown in FIG. 7, the common content recommended most recently is changed to a new content "Yoga classroom", and "Beach yoga" is displayed in the display area R2 as common content recommended last time . Although omitted in FIG. 7, the display areas R3 and R4 also change in the same manner as the display area R2.

  As described above, when the user U1 reproduces a new content on its own device (content reproduction device 2a), the common content between the user U1 and the other users is automatically updated, and the new common content is recommended to the user U1. Ru.

  FIGS. 8 and 9 are diagrams showing an example of the recommendation screen displayed on the content reproduction devices 2a and 2b. As described above, in the display area R1 of the recommendation screen of the content reproduction apparatus 2a, an icon indicating the content reproduced by the user U1 is displayed, and in the display area R2, the common content of the users U1 and U2 recommended by the user U1 Is displayed, and at the center is displayed an icon indicating the content being played by the user U1. Further, in the display area R1 of the recommendation screen of the content reproduction apparatus 2b, an icon indicating common content of the users U1 and U2 recommended to the user U2 is displayed, and in the display area R2, the content reproduced by the user U2 is shown. An icon is displayed, and an icon indicating the content being reproduced by the user U2 is displayed at the center.

  The recommendation screen of the content reproduction device 2a in FIG. 8 is the same as that in FIG. On the other hand, in the example of FIG. 8, the user U2 is reproducing "Fitness Plan", and has reproduced "reproduction content E" to "reproduction content G" and "fashion week" in the past, with the user U1. "Beach yoga" is recommended immediately after as common content, and "common content A" to "common content C" are recommended as common content with the user U1 in the past. In the examples of FIGS. 8 and 9, it is assumed that the same common content is recommended to the user U1 and the user U2.

  In the state of FIG. 8, when the user U 2 selects and operates again the “fashion week” icon reproduced in the past, the display control unit 11 b switches the recommendation screen to the content reproduction screen, and reproduces “fashion week”. Thereafter, when the user U2 displays the recommendation screen, as shown in FIG. 9, the content being reproduced becomes "fashion week", and the "fitness plan" is displayed in the display area R2 as the content reproduced in the past.

  Also, when the user U2 reproduces “fashion week”, the preference information collection unit 12 collects the content information of “fashion week” as preference information of the user U2, and transmits the content information to the content selection unit 14. When the content selection unit 14 receives the new preference information of the user U2, the content selection unit 14 updates the common content in which the user U2 is the target user or another user based on the preference information, and the updated common content is recommended. Transmits to the content reproduction devices 2a to 2d. When the new common content is received, the display control unit 11b of the content reproduction device 22 displays the common content on the recommendation screen as the most recently recommended common content.

  As a result, as shown in FIG. 9, on the recommendation screen of the content reproduction apparatus 2b, the common content recommended most recently is changed to "beach fashion" which is a new content, and "beach yoga" is the common recommended last time. It is displayed in the display area R1 as content. Although not shown in FIG. 9, the display areas R3 and R4 also change in the same manner as the display area R1.

  Similarly, when a new common content is received, the display control unit 11a of the content reproduction device 2a displays the common content on the recommendation screen as the most recently recommended common content. As a result, as shown in FIG. 9, on the recommendation screen of the content reproduction apparatus 2a, the common content recommended most recently is changed to "beach fashion" which is a new content, and "beach yoga" is the common recommended last time. It is displayed in the display area R2 as content. Although not shown in FIG. 9, the display areas R3 and R4 also change in the same manner as the display area R2.

  As described above, when the user U2 reproduces a new content by the own device (content reproduction device 2b), the common content between the user U2 and the other user is automatically updated, and the new common content is recommended to the other user Be done.

  As described above, the recommendation system 100 can recommend each user the common content with other users. Thereby, the recommendation system 100 can provide each user with a common topic with other users, and can activate communication between the users in the car.

  Note that the present invention is not limited to the configurations shown here, such as combinations with other elements in the configurations and the like described in the above embodiments. These points can be changed without departing from the spirit of the present invention, and can be appropriately determined according to the application form.

1: recommendation server 2, 2 to 24: content reproduction device 3: relay device 4: content distribution server 11, 11a to 11d: display control unit 12: preference information collection unit 13: content storage unit 14: content selection unit 15: recommendation Department

Claims (5)

A plurality of content reproduction devices installed in each seat of the vehicle;
A preference information collection unit that collects preference information of the user seated in each seat;
Both the target user and the other user make a preference based on the preference information of the target user who is seated in the target seat and the preference information of the other users who are seated in another seat different from the target seat A content selection unit for selecting common content to be
A recommendation unit for recommending the common content to the target user by displaying the common content on a recommendation screen of the content reproduction apparatus installed in the target seat;
Recommendation system equipped with The recommendation screen has a plurality of display areas corresponding to each seat,
The recommendation system according to claim 1, wherein the recommendation unit causes the common content to be displayed in the display area corresponding to the other seat in the recommendation screen of the content reproduction apparatus installed in the target seat. The recommendation system according to claim 2, wherein the recommendation unit displays an icon indicating the common content in the display area corresponding to the other seat in the recommendation screen of the content reproduction apparatus installed in the target seat. . The preference information collecting unit collects content information of content reproduced by the content reproduction device installed in each seat, as the preference information of the user who has been seated in each seat. The recommendation system according to any one of the items. The content selection unit calculates a preference degree of the target user and the other user for each of a plurality of contents, and selects the common content from the plurality of contents based on the preference degree. The recommendation system according to any one of claims 1 to 4.

Images