KR102561048B1 - Method and device for controlling cloud-based digital signage - Google Patents

Abstract

According to various embodiments, a cloud service-based digital signage control server includes a DB management unit for storing a plurality of image contents; a signage control unit that outputs a first video content among the plurality of video contents stored in the DB management unit through a display of a predetermined signage device at a preset time; an interaction control unit recognizing a user using at least one of a camera, a motion sensor, and a beacon included in the signage device; and an advertisement fee determination unit configured to determine an advertisement fee to be charged to an advertiser corresponding to the video content.

Description

Method and device for controlling cloud-based digital signage {METHOD AND DEVICE FOR CONTROLLING CLOUD-BASED DIGITAL SIGNAGE}

The present invention relates to a method and apparatus for controlling a cloud-based digital signage advertisement, and more particularly, to a method and apparatus for controlling a user-responsive digital signage using at least one display.

In the conventional content providing method, it is common to provide flyers on which advertisement content is posted offline (off-line) or to provide online (on-line) Internet, TV or radio. However, this conventional method of providing content not only provides fixed information to users unilaterally, but also makes it difficult to quickly modify, change, or update pre-produced content because the owners and creators of the content are different. Therefore, recently, a method of providing content through digital signage has emerged.

Digital signage is a means for displaying content using a digital information display, and refers to a content that can be controlled by a server through a communication network. It is common in places with a large floating population, such as subway stations, bus stops, apartment elevators, building exteriors, and banks, and currently, most of them are simply 2D video ads with sound alternately exposed at different times of the day.

However, in order to provide people with more interesting content or to provide content efficiently, content can be displayed in various environments (e.g., indoor space, narrow space), not in the same way as broadcasting programs are transmitted to a TV through at least one display. It is necessary to prepare a method to expose responsive content in an appropriate place through interactive exchange with users rather than unilateral information provision.

Unless otherwise indicated herein, material described in this section is not prior art to the claims in this application, and inclusion in this section is not an admission that it is prior art.

Republic of Korea Patent Publication No. 10-2016-0105123 (2016.09.06.) US Patent Application Publication No. US2008/0004953 (2008.01.03.) Republic of Korea Patent Registration No. 10-2324135 (2021.11.09.) Republic of Korea Patent Publication No. 10-2021-0090887 (2021.07.21.) Republic of Korea Patent Publication No. 10-2022-0115643 (2022.08.18.) Republic of Korea Patent Registration No. 10-2410497 (2022.06.16.)

An object of the present invention to solve the above problems is to provide a method and apparatus for controlling a cloud-based digital signage using at least one display.

Another object of the present invention for solving the above problems may further provide objects directly or indirectly identified through this document.

According to various embodiments, a cloud service-based digital signage control server includes a DB management unit for storing a plurality of image contents; a signage control unit that outputs a first video content among the plurality of video contents stored in the DB management unit through a display of a predetermined signage device at a preset time; an interaction control unit recognizing a user and a user terminal of the user using at least one of a camera, a motion sensor, and a beacon included in the signage device; and an advertisement fee determination unit configured to determine an advertisement fee to be charged to an advertiser corresponding to the video content.

According to various embodiments, the interaction control unit recognizes the user terminal, obtains interest information of the user of the recognized user terminal, searches for content corresponding to the interest information acquired through the DB management unit, and , An image corresponding to the searched content may be output through the display.

According to various embodiments, the signage controller outputs a first image to a first area of the display, and displays a second image distinct from the first image to a second area close to the first area of the display. can be printed out.

According to various embodiments, the signage control unit allows the users to view the first video content based on at least one of the size of the display, distribution and density of users around the signage device, and movement paths of the users. An optimal viewing distance, which is an optimal viewing distance, may be determined.

According to various embodiments of the present disclosure, the interaction control unit may determine a distance between the user recognized through the camera and the camera, a time when the user is located in an area within the optimum viewing distance, and a recent one located in an area within the optimum viewing distance. The user is determined as a target user, the user terminal of the user is determined as the target terminal, based on the number of users during the time period and the number of users who have entered and exited the area within the viewing optimum distance during the last 1 hour; Advertisement information related to the first video content may be provided to the user terminal determined as .

According to various embodiments, a method for controlling cloud service-based digital signage includes storing a plurality of image contents; outputting a first video content among the plurality of stored video contents through a display of a predetermined signage device at a preset time; Recognizing a user using at least one of a camera, a motion sensor, and a beacon included in the signage device; and determining an advertisement fee to be charged to an advertiser corresponding to the video content.

According to various embodiments, there may be a non-transitory recording medium on which a program for executing the method is recorded and read by a computer.

According to various embodiments, there may be a computer program recorded on a non-transitory recording medium to execute the method.

According to various embodiments, a cloud service-based digital signage control system may include a cloud service-based digital signage control server; a signage device interworking with the digital signage control server; and a manager terminal managing the digital signage control server. The server may include a DB management unit for storing a plurality of image contents; a signage control unit that outputs a first video content among the plurality of video contents stored in the DB management unit through a display of a predetermined signage device at a preset time; an interaction control unit recognizing a user using at least one of a camera, a motion sensor, and a beacon included in the signage device; and an advertisement fee determination unit configured to determine an advertisement fee to be charged to an advertiser corresponding to the video content.

According to the various embodiments disclosed in this document, compared to online advertising, the advantages of online advertising are excellent in interactive communication and the elasticity of advertisement delivery and execution, and the disadvantages of online advertising are authority and reliability, which enable various media contents and events. Conversely, it can be used to maintain a high level.

In addition, according to various embodiments, low price and efficient operation, which are advantages of digital signage, are possible, and impactful advertisements can be provided through collaboration with local artists and online creators.

Also, according to various embodiments, signage can be utilized as urban regeneration cultural content.

In addition to this, various effects identified directly or indirectly through this document may be provided.

1 is a diagram illustrating a cloud-based signage control system according to an embodiment.
2 is a diagram briefly illustrating an operation flow of a cloud-based signage control system.
3 is a diagram illustrating a process between a digital signage control server and a signage device and a process inside the signage device.
4 is a diagram showing the main components of the digital signage control server.
5 is a diagram according to an embodiment of viewing an image output through at least one display or interaction between an output image and viewers.
6 is a diagram showing the hardware configuration of the digital signage control server according to FIG. 1;
7 is a diagram illustrating a wireless communication system that can be applied in a communication process according to an embodiment of the present invention.
8 is a diagram illustrating a base station in the wireless communication system according to FIG. 7 .
9 is a diagram illustrating a terminal in the wireless communication system according to FIG. 7 .
10 is a diagram illustrating a communication interface in the wireless communication system according to FIG. 7 .

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure.

Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "include" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, they should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a cloud-based signage control system 10 according to an embodiment. Referring to FIG. 1 , the cloud-based signage control system 10 may include a digital signage control server 100, a manager terminal 200, a signage device 300, and the like. Operations described below may be performed or implemented through a platform (eg, a web page and/or application) controlled by the digital signage control server 100 . In other words, the digital signage control server 100 allows a manager to access the digital signage control server 100 through a network using the manager terminal 200 to input, register, and output various information. A web site can be provided, and an application capable of inputting, registering, and outputting various information can be provided by being installed and executed in the manager terminal 200 .

The digital signage control server 100 regenerates small business owners and commercial districts that are lagging behind in competitiveness through responsive content signage, and not only functions as an advertisement, but also economically through collaboration with local creators and media art artists. By only being reborn, it can also provide an opportunity as a new cultural base.

The digital signage control server 100 can manage the state of the signage device 300, collect statistical data, and transmit files or data (eg, video files or video data) to the signage device 300. there is. The signage device 300 may mean an electric signboard, and the signage device 300 may be configured as a display (eg, the display 302 of FIG. 3 ).

The display of the signage device 300 may be installed not only in an outdoor space, but also on an indoor angled pillar or installed on an indoor wall. The display of the signage device 300 may be composed of at least one display, and the display of the signage device 300 may include a liquid crystal display (LCD), a thin film transistor-LCD (thin film transistor-LCD) display, and the like. It may include at least one of a liquid crystal display, an organic light-emitting diode (OLED), a flexible display, and a 3D display.

A display may be disposed on one surface of the signage device 300 and may occupy most of one surface of the signage device 300 . The signage device 300 may include each display panel on each of a plurality of surfaces of the signage device 300, or the signage device 300 may cover a plurality of surfaces simultaneously. may include a display. In other words, the display may include a flat area and a curved area extending from the flat area toward the side of the signage device 300 .

The signage device 300 includes a camera, motion sensor, beacon, and the like, and may interact with a pedestrian using the camera, motion sensor, and beacon. Additionally, the signage device 300 may include a speaker, a receiver, a proximity sensor, a key, and the like. A fingerprint sensor for fingerprint recognition may be included in one area of the display of the signage device 300 . Since the fingerprint sensor is disposed on a lower layer of the display, it may not be recognized by a user or may be difficult to be recognized. In addition, a sensor for additional user/biometric authentication may be disposed in a partial area of the display in addition to the fingerprint sensor. For example, an IR sensor for iris authentication may be exposed through one area of the display or may be attached and exposed at a location close to the display.

The signage device 300 may include at least one camera for user recognition. For example, the signage device 300 may include two cameras such as a first camera and a second camera. The first camera and the second camera may be cameras of the same type having the same specifications (eg, pixels), but the first camera and the second camera may be implemented as cameras having different specifications. The signage device 300 may support functions related to dual cameras (eg, 3D shooting, auto focus, etc.) through two cameras.

The digital signage control server 100 may use web-based signage software that is not limited to the type or types of the signage device 300 . The digital signage control server 100 moves, copies, saves, transforms, and transmits files or data on a cloud basis, and uses the files or data through the signage device 300 according to the administrator's input or settings (eg : Signage screen output).

The digital signage control server 100 may transmit or provide files or data (eg, video files or video data) to be displayed through the signage device 300 to the signage device 300 .

The signage device 300 displays (outputs) files or data (eg, video files or video data) obtained from the digital signage control server 100 (or video file DB of the digital signage control server 100). )can do. The digital signage control server 100 not only displays (outputs) an advertisement video and/or a promotional video through the signage device 300 through the image file or image data stored in the image file DB, but also the signage device ( 300), various services can be provided.

For example, the digital signage control server 100 may output content for finding a lost child through the signage device 300 in conjunction with the digital signage control server 100 of a police station. The digital signage control server 100 obtains information related to content for finding a lost child from the digital signage control server 100 for a police station. age, gender, etc.). The digital signage control server 100 may output lost child finding content through the display 302 of the signage device 300 based on the obtained estimated time of missing child. The digital signage control server 100 grasps the flow status of users around the signage device 300 through face recognition, motion recognition, proximity, and user recognition using a beacon sensor, and performs responsive advertisements. can do. In addition, considering that it is difficult to provide location information services for user terminals indoors and underground, rather than simply recognizing user terminals through the camera and beacon sensor described above, it is difficult to provide indoor and underground information for users (or user terminals) through their own application service. You can pinpoint the exact location.

The manager terminal 200 includes a communicable desktop computer, a laptop computer, a notebook, a smart phone, a tablet PC, a mobile phone, and a smart watch. (smart watch), smart glass, e-book reader, PMP (portable multimedia player), portable game console, navigation device, digital camera, DMB (digital multimedia broadcasting) player, digital voice It may be a digital audio recorder, a digital audio player, a digital video recorder, a digital video player, and a personal digital assistant (PDA).

The digital signage control server 100, the manager terminal 200, and the signage device 300 are connected to a communication network, respectively, and can transmit and receive data to and from each other through the communication network. For example, communication networks include Local Area Network (LAN), Metropolitan Area Network (MAN), Global System for Mobile Network (GSM), Enhanced Data GSM Environment (EDGE), High Speed Downlink Packet Access (HSDPA), and W-CDMA. (Wideband Code Division Multiple Access), CDMA (Code Division Multiple Access), TDMA (Time Division Multiple Access), Bluetooth, Zigbee, Wi-Fi, Voice over Internet Protocol (VoIP) , LTE Advanced, IEEE802.16m, WirelessMAN-Advanced, HSPA+, 3GPP Long Term Evolution (LTE), Mobile WiMAX (IEEE 802.16e), UMB (formerly EV-DO Rev. C), Flash-OFDM, iBurst and MBWA (IEEE Various types of wired or wireless networks may be used, such as 802.20) systems, HIPERMAN, Beam-Division Multiple Access (BDMA), World Interoperability for Microwave Access (Wi-MAX), and 5G.

2 is a diagram briefly illustrating an operation flow of a cloud-based signage control system. Referring to FIG. 2, the cloud-based digital signage control system 10 includes a digital signage control server 100, a manager terminal 200, a signage cluster, a cloud file storage (DB), and a backup file storage (DB), respectively. It can be understood that this works in conjunction.

The digital signage control server 100 may include a state management server or interwork with the state management server. The state management server can check the state of the DB and signage cluster or perform recovery work in case of an error. The manager terminal 200 may control and manage the digital signage control server 100 .

The digital signage control server 100 may distribute advertisements to signage clusters. For example, the signage cluster may mean a set of signage devices distributed in various places, and by providing a determined video file or video data and user responsive data to the signage devices distributed in each place. Advertisements can be distributed. For example, the digital signage control server 100 may output first video files to first video data to the first signage device so that the first to third advertisements can be output to the first signage device at the first location. , and a second video file to second video data provided to the second signage device so that the fourth to sixth advertisements can be output to the second signage device at the second location, and to provide the first user-responsive data; and second user-responsive data.

3 is a diagram illustrating a process between the digital signage control server 100 and the signage device 300 and a process within the signage device 300.

Referring to FIG. 3 , the digital signage control server 100 transmits video files or video data, and user-responsive files or user-responsive data to the signage device 300 (eg, the signage processor 301). can

The signage processor 301 will be understood as hardware that operates modules such as the DB management unit 101, the advertising fee determination unit 104, the signage control unit 102, and the interaction control unit 103 described in FIG. 4 below. can The signage processor 301 may output a video file or data obtained from the digital signage control server 100 and a responsive file or responsive data through the display 302 . The signage processor 301 uses various sensors (eg, cameras, motion sensors, beacons, fingerprint sensors, sensitive sensors, sound sensors (i.e., sound measurement sensors), etc.) included in or interlocked with the signage device 300. Data (or responsive data) can be acquired. The user data (or responsive data) may include a user's movement amount, a user's distribution, a user's density, user's interest information, user characteristics by time zone, and the like.

The signage device 300 (eg, the signage processor 301) includes various sensors (eg, cameras, motion sensors, beacons, fingerprint sensors, sensitive sensors, sound sensors, etc. ) may be transmitted or provided to the digital signage control server 100.

4 is a diagram showing the main components of the digital signage control server 100.

The DB management unit 101 may collect, store, and manage a plurality of contents. For example, the plurality of contents may be video contents with sound output or silent video contents without sound output. The DB management unit 101 interworks with a cloud file storage or cloud file DB, and can receive files and data stored in the cloud file storage or cloud file DB. The DB management unit 101 may provide the signage control unit 102 with files or data corresponding to the request at the request of the signage control unit 102 .

The signage control unit 102 may output content stored in the DB management unit 101 to the display 302 . The signage controller 102 displays a first image in a first area of the display 302 and displays a second image in a second area close to the first area, using anamorphic illusion technology. A third image based on the first image and the second image may be displayed in a specific area. The first image and the second image may include different depth information and point of view information. For example, the first image may include first depth information and first viewpoint information, and the second image may include second depth information and second viewpoint information. The contents or types of contents of the first image to the third image may include various contents such as advertisement, broadcasting, traffic information, disaster safety information, and weather information.

The signage controller 102 may change depth information and viewpoint information of each of the first image and the second image according to an angle between the first and second regions.

The signage controller 102 may set the luminance of the display 302 differently for each time period. For example, the signage controller 102 may implement the display 302 with a luminance higher than a preset threshold luminance value to secure visibility in a bright environment.

The signage control unit 102 divides a day into a plurality of time zones at preset time intervals (eg, 2 hours), and among the plurality of time zones, determines a time zone with the fewest users distributed in an optimal viewing distance as a first time zone, , The display can be turned off in the first time zone.

The interaction control unit 103 discriminates objects, recognizes users, catches or includes motions through data acquired through cameras, motion sensors, beacons, etc., and interacts with pedestrians using cameras, motion sensors, beacons, etc. can be done

The interaction control unit 103 may acquire external sound (noise) data around the signage device 300 through a sound sensor included in the signage device 300 .

The signage control unit 102 may display a user-customized advertisement through the image DB. For example, the signage control unit 102 recognizes the specific user through the interaction control unit 103 when the specific user passes around the display, obtains interest information of the recognized specific user, and assigns interest information to the acquired interest information. Corresponding advertisements may be displayed. In other words, the interaction control unit 103 recognizes user terminals around the display 302 through beacons, generates a location distribution map of the recognized user terminals, and among users belonging to an area with the highest density of user terminals, the area Interest information of a user who has been staying for the longest time may be obtained, and content corresponding to the acquired interest information may be displayed. The interaction control unit 103 may determine the information of interest based on the age of the user and the gender of the user, and from an open source included in Internet portal servers (eg, Naver, Daum, Google) Online search information of other users having the same age and gender may be obtained, and the interest information may be determined based on the obtained online search information.

The interaction control unit 103 may perform image preprocessing to remove noise on image data acquired through the camera of the signage device 300 . The interaction control unit 103 may perform object detection on the image data on which image preprocessing has been performed. The interaction control unit 103 may input the image data for which image preprocessing has been performed to the artificial neural network as input data. The artificial neural network may be implemented using a convolutional neural network (CNN)-based object identification algorithm such as single shot detector (SSD), region with CNN (R-CNN), or you only look once (YOLO). Objects and people can be recognized through the artificial intelligence through the object detection, and through this, AR emoji responsive content can be executed to interact with pedestrians.

The interaction control unit 103 may perform supervised learning on a person detection model according to image data obtained through a camera, and the person detection model may be implemented as an artificial neural network. An artificial neural network is a predictive model implemented in software or hardware that mimics the computational power of a biological system using a large number of artificial neurons (or nodes).

The person detection model may be supervised and learned using 'image data' obtained through a camera by the person detection model and 'data labeled for an object recognized in the image data'. At this time, supervised learning means learning to find an output value according to a given input value by using data with input values and corresponding output values as learning data, and means learning that takes place in a state where the correct answer is known. For example, the labeled data may be data labeled for each object (eg, human, dog, cat, etc.). The set of inputs and outputs given to supervised learning is called training data. That is, 'image data' and 'labeled data' obtained through the above-described camera are input values and output values, respectively, and may be used as training data for supervised learning of a human detection model.

In other words, the interaction control unit 103 may determine whether the detected object is a person by using a previously supervised learning person detection model. The interaction control unit 103 may convert the image data into an input image having a preset size in the supervised person detection model and input the result to the person detection model. The interaction controller 103 may identify the type of object included in the image data based on the output of the person detection model. The interaction control unit 103 may obtain object information about the type of the identified object, and determine whether the detected object is a person based on the obtained object information. The interaction control unit 103 may perform floating population analysis through the detected or recognized person.

The advertisement fee determination unit 104 may calculate a cost per mile (CPM) based on the floating population analysis performed through the interaction control unit 103 . For example, CRM is a type of model for measuring advertising costs, and may mean the cost used to expose 1000 advertisements, and video content (eg, the signage device 300) through mass media (eg, the signage device 300). advertising message), and may mean a relative price of an advertisement exposed by mass media (eg, the signage device 300). For example, the above CPM = advertising cost / (total outdoor advertising exposure (Y) × advertising period) × 1000 (an advertising period is one week)

The advertisement fee determination unit 104 may determine an advertisement fee to be charged to the advertiser based on the location of the signage device and floating population information. For example, the closer the advertiser's store and signage device are, the lower the advertiser's advertising fee is determined, or the larger the floating population around the signage device, the more the advertiser's advertising fee is set. can be determined higher.

5 is a diagram according to an embodiment of viewing an image output through at least one display or interaction between an output image and viewers.

The signage controller 102 may interact with users at a certain distance (eg, a first distance) from the signage device 300 . For example, the interaction control unit 103 recognizes users at a certain distance from the signage device 300 with a camera, determines target users to perform interactions through the location and stay time of the recognized users, and determines the target users. Target user terminals corresponding to the users may be determined. As another example, the interaction control unit 103 recognizes user terminals at a certain distance from the signage device 300 through the beacon of the signage device 300, and uses the location, stay time, etc. of the recognized user terminals. Target user terminals to perform interactions may be determined.

The signage controller 102 can control content output through the display when the sound volume around the signage device 300 is higher than a certain level. In other words, if there is noise around the signage device, even if content (eg, advertisement) that generates sound is output, a meaningful advertisement effect cannot be seen. It is possible to change the type of content output through the display during the time.

The signage controller 102 may control content output through the display when the sound level measured by the sound sensor of the signage device 300 is greater than or equal to a threshold decibel (dB). However, whether or not the outputted content has an effect should not be determined based on the location standard of the signage device 300, but based on the user (or viewer, pedestrian) standard that actually watches the content. The controller 102 may determine a threshold decibel (dB) based on the determined optimal viewing distance. For example, the signage controller 102 may have a smaller threshold decibel as the optimal viewing distance is farther, and may have a larger threshold decibel as the optimal viewing distance is closer. However, since the threshold decibel cannot become infinitely small even if the optimal viewing distance is long, the threshold decibel may be greater than or equal to the first decibel.

When the content output through the signage device 300 is the first content that outputs sound, the signage control unit 102 determines the sound measured through the sound sensor at a first time when the first content is to be output. When the size is greater than the threshold decibel, the output time of the first content is changed to a second time point temporally adjacent to the first time point, and the second content scheduled to be output at the second time point among other content temporally adjacent to the first time point is changed. It can be controlled to be output at the first time point. The second content may be understood as content without sound output.

The signage controller 102 may determine an optimal viewing distance for users walking around the signage device 300 . The signage controller 102 may determine an optimal viewing distance based on the size of the display 302 of the signage device 300, distribution and density of users (viewers), and movement paths of users (viewers). In other words, as the size of the display increases, the optimal viewing distance for viewing an image output from the signage device may increase, and the optimal viewing distance may be determined according to the location information of users (viewers) as well as the size of the display. The signage controller 102 may determine the optimal viewing distance through Equation 1 below.

In Equation 1, d is the optimal viewing distance (m), s is the size (inch) of the display, and k is the first sidewalk (sidewalk or The distance (m) to the central point of the pavement width, w1 may mean a first weight for the distance to the center point, w2 may mean a second weight for the size of the display, and w1 may be greater than w2. there is.

The interaction controller 103 may identify user terminals of users passing through an area within the determined optimal viewing distance, and may identify target terminals determined by the interaction controller 103 .

The interaction control unit 103 may acquire identification codes of user terminals satisfying preset conditions, instead of acquiring identification codes of all user terminals that have received the beacon signal. In other words, if information or an interface related to the service provided by the interaction control unit 103 is displayed on all user terminals close to the beacon, inconvenience and discomfort may be given to users who do not want the service, so the interaction control unit 103 ) may determine a user terminal satisfying a preset condition as a target terminal to provide a service.

The interaction control unit 103 approaches a preset distance from the beacon, is located within a preset distance from the beacon for a preset time, has an application provided by the digital signage control server 100 installed, and executes the application. It is possible to determine the current user terminal as a target terminal to provide the service. In other words, providing a service related to the image output to the display to the user terminal 200 simply by simply passing within a close distance to the beacon may have a problem in that it may be sent to unwanted users, so the interaction control unit ( 103) may determine a user terminal satisfying a preset condition as a target terminal to provide a service. As another example, the interaction control unit 103 is recognized within a preset distance from the camera, and an application provided by the digital signage control server 100 is installed among users located within a preset distance from the camera for a preset time. , A user terminal running the application may be determined as a target terminal to provide the service.

The interaction control unit 103 determines the distance between the user terminal 200 and the beacon (or camera), the time when the user terminal 200 is located in an area within the optimal viewing distance, and the last 1 hour located in an area within the optimal viewing distance. An interaction index, which is a reference value responding to a beacon signal, may be calculated based on the number of other user terminals and the number of user terminals that have visited and entered the area within the optimal viewing distance during the last hour. The interaction control unit 103 may calculate the interaction index of the user terminal through Equation 2 below.

In Equation 2, E is the interaction index, h is the distance (m) between the user terminal and the beacon or the distance between the user and the camera, and c is the user terminal or user in an area within the optimal viewing distance. Positioning time (in seconds), j is the number of user terminals or users located in the area within the optimal viewing distance, n is the number of user terminals or users who have entered and exited the area within the optimal viewing distance during the last 1 hour. can

The interaction control unit 103 may determine a user terminal having an interaction index higher than a preset threshold index as the target terminal. The interaction control unit 103 may transmit advertisement data, event data, and/or coupon data related to the image output through the display 302 to the target terminal.

FIG. 6 is a diagram showing the hardware configuration of the digital signage control server 100 according to FIG. 1 .

Referring to FIG. 6 , the digital signage control server 100 includes at least one processor 110 and instructions instructing the at least one processor 110 to perform at least one operation. It may include a memory to store.

The at least one operation may include at least some of the operations or functions of the above-described digital signage control server 100 and may be implemented in the form of instructions and performed by the processor 110 .

Here, the at least one processor 110 may mean a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor for performing methods according to embodiments of the present invention. can Each of the memory 120 and the storage device 160 may include at least one of a volatile storage medium and a non-volatile storage medium. For example, the memory 120 may be one of a read only memory (ROM) and a random access memory (RAM), and the storage device 160 may be a flash-memory. , a hard disk drive (HDD), a solid state drive (SSD), or various memory cards (eg, a micro SD card).

In addition, the digital signage control server 100 may include a transceiver 130 that performs communication through a wireless network. In addition, the digital signage control server 100 may further include an input interface device 140, an output interface device 150, a storage device 160, and the like. Each component included in the digital signage control server 100 is connected by a bus 170 to communicate with each other. In FIG. 6, the digital signage control server 100 has been described as an example, but is not limited thereto. For example, a plurality of user terminals may include a component according to FIG. 6 .

7 is a diagram illustrating a wireless communication system that can be applied in a communication process according to an embodiment of the present invention. 8 is a diagram illustrating a base station in the wireless communication system according to FIG. 7 . 9 is a diagram illustrating a terminal in the wireless communication system according to FIG. 7 . 10 is a diagram illustrating a communication interface in the wireless communication system according to FIG. 7 .

Hereinafter, an example of a wireless communication network system supporting communication between various digital signage control servers 100 and the terminal 200 according to the present invention will be described in detail as an example. In the following description, a first node (device) may be an anchor/donor node or a centralized unit (CU) of an anchor/donor node, and a second node (device) may be an anchor/donor node or a distributed unit (DU) of a relay node can be

A base station (BS), terminal, server, etc. may be included as a part of a node using a radio channel in a wireless communication system.

A base station is a terminal and a network infrastructure that provides wireless access to terminals. A base station has a coverage defined as a predetermined geographic area according to a distance over which a signal can be transmitted.

A base station, like a "base station," is referred to as "access point (AP)", "enodeb (eNB)", "5th generation (5G) node", "wireless point", " It may be referred to as a transmission/reception point (TRP).

The base station, the terminal, and the terminal may transmit and receive wireless signals in a millimeter wave (mmWave) band (eg, 28 GHz, 30 GHz, 38 GHz, and 60 GHz). At this time, the base station, the terminal, and the terminal may perform beamforming to improve the channel gain. Beamforming may include transmit beamforming and receive beamforming. That is, the base station, the terminal, and the terminal can give directivity to the transmitted signal and the received signal. To this end, the base station, the terminal, and the terminal may select a serving beam through a beam search procedure or a beam management procedure. After that, communication may be performed using a resource carrying a serving beam and a resource having a quasi co-located relationship.

A first antenna port and a second antenna port are considered quasi-colocated if the large-scale properties of the channel through which the symbol of the first antenna port carries can be inferred from the channel through which the symbol of the second antenna port carries. The large-scale properties may include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial Rx parameters.

Hereinafter, a base station in the wireless communication system described above is exemplified. The terms "-module", "-unit" or "-er" used below may mean a unit that processes at least one function or operation, and may include hardware, software, or both hardware and software. It can be implemented as a combination of

The base station may include a wireless communication interface, a backhaul communication interface, a storage unit and a controller.

The wireless communication interface performs a function of transmitting and receiving signals through a wireless channel. For example, the wireless communication interface may perform a conversion function between a baseband signal and a bit stream according to a physical layer standard of the system. For example, in data transmission, a radio communication interface encodes and modulates a transmitted bit stream to generate composite symbols. Also, upon receiving data, the wireless communication interface demodulates and decodes the baseband signal to reconstruct the received bit stream.

The wireless communication interface performs a function of transmitting and receiving signals through a wireless channel. For example, the wireless communication interface may perform a conversion function between a baseband signal and a bit stream according to a system physical layer standard. For example, in data transmission, a radio communication interface encodes and modulates a transmitted bit stream to generate composite symbols. Also, upon receiving data, the wireless communication interface demodulates and decodes the baseband signal to reconstruct the received bit stream.

In addition, the wireless communication interface up-converts a baseband signal into a radio frequency (RF) band signal, transmits the converted signal through an antenna, and down-converts the RF band signal received through the antenna into a baseband signal. To this end, the wireless communication interface includes a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, a digital-to-analog converter (DAC), An analog-to-digital converter (ADC) and the like may be included. Also, the wireless communication interface may include a plurality of transmit/receive paths. Additionally, the wireless communication interface may include at least one antenna array comprising a plurality of antenna elements.

In terms of hardware, the wireless communication interface may include a digital unit and an analog unit, and the analog unit may include a plurality of sub-units according to operating power, operating frequency, and the like. A digital unit may be implemented with at least one processor (eg, a digital signal processor (DSP)).

The wireless communication interface transmits and receives signals as described above. Accordingly, a wireless communication interface may be referred to as a “transmitter”, “receiver” or “transceiver”. In addition, in the following description, transmission and reception performed through a wireless channel may be used as a meaning including processing performed in a wireless communication interface as described above.

The backhaul communication interface provides an interface for communicating with other nodes in the network. That is, the backhaul communication interface converts the bit stream transmitted to other nodes, for example, other access nodes, other base stations, upper nodes or core networks from base stations into physical signals, and the physical signals received from other nodes into bits. convert to stream

The storage unit stores data such as basic programs, applications, and setting information for operation of the base station. The storage unit may include volatile memory, non-volatile memory, or a combination of volatile and non-volatile memory.

The controller controls the overall operation of the base station. For example, the controller transmits and receives signals through a wireless communication interface or a backhaul communication interface. Also, the controller writes data to the storage unit and reads the recorded data. The controller can perform protocol stack functions required by communication standards. According to another implementation, a protocol stack may be included in a wireless communication interface. To this end, the controller may include at least one processor.

According to an embodiment, the controller may control the base station to perform an operation according to an embodiment of the present invention.

According to various embodiments, a donor node of a wireless communication system includes at least one processor, includes a transceiver operably coupled to the at least one processor, and includes a plurality of radio bearers for a terminal accessing the relay node. configured to transmit to a relay node a first message including first information related to the donor node about; receive a second message including second information related to the relay node regarding a plurality of radio bearers for the terminal from the relay node; Data for the terminal may be transmitted to the relay node. Data may be transmitted to the terminal through a plurality of radio bearers based on the first information and the second information.

According to various embodiments, a radio bearer among a plurality of radio bearers may integrate a plurality of radio bearers. the at least one processor is also configured to determine a radio bearer for a terminal accessing the relay node and multiple radio bearers aggregated by the radio bearer; Alternatively, a radio bearer for a UE accessing a relay node may be determined.

According to various embodiments, the first message may include one or more of: identification of a terminal accessing the relay node; display information indicating the type of terminal accessing the relay node; information about a radio bearer of a terminal accessing a relay node; information about a radio bearer transmitted by a terminal accessing a relay node; information about a tunnel established for a radio bearer between the donor node and the relay node; information about integrated multiple radio bearers; radio bearer mapping information; information about the address on the side of the donor node; information about the address of the relay node side; indication information corresponding to a radio bearer of a terminal accessing the relay node; indication information indicating the relay node to allocate a new address to a radio bearer for a terminal accessing the relay node; a list of address information that cannot be used by a relay node that transmits radio bearer data of a terminal accessing the relay node; and information related to security configuration.

According to various embodiments, the second message may include one or more of: identification of a terminal accessing the relay node; information about the radio bearer granted by the relay node; information about radio bearers not acknowledged by the relay node; information about radio bearers partially granted by the relay node; radio bearer mapping information; Configuration information of a terminal accessing the relay node created by the relay node; information about the address of the relay node side; and information related to security configuration.

According to various embodiments, the second message may further include information on integrated multiple radio bearers.

According to various embodiments, the donor node may include a central unit of the donor node, and the relay node may include a distribution unit of the donor node.

According to various embodiments, a relay node of a wireless communication system includes at least one processor, includes a transceiver operably coupled to the at least one processor, and provides a plurality of information from a donor node to a terminal accessing the relay node. configured to receive a first message including first information related to a donor node for a radio bearer of; transmit to the donor node a second message including second information related to the relay node for the plurality of radio bearers for the terminal; Data on the terminal may be received from the donor node. Data may be transmitted to the terminal through a plurality of radio bearers based on the first information and the second information.

According to various embodiments, a radio bearer among a plurality of radio bearers may integrate a plurality of radio bearers. the at least one processor is also configured to determine a radio bearer for a terminal accessing the relay node and multiple radio bearers aggregated by the radio bearer; Alternatively, multiple radio bearers integrated by radio bearer may be determined.

According to various embodiments, the first message may include one or more of: identification of a terminal accessing the relay node; display information indicating the type of terminal accessing the relay node; information about a radio bearer of a terminal accessing a relay node; information about a radio bearer transmitted by a terminal accessing a relay node; information about a tunnel established for a radio bearer between the donor node and the relay node; information about integrated multiple radio bearers; radio bearer mapping information; information about the address on the side of the donor node; information about the address of the relay node side; indication information corresponding to a radio bearer of a terminal accessing the relay node; indication information indicating the relay node to allocate a new address to a radio bearer for a terminal accessing the relay node; a list of address information that cannot be used by a relay node that transmits radio bearer data of a terminal accessing the relay node; and information related to security configuration.

According to various embodiments, the second message may include one or more of: identification of a terminal accessing the relay node; information about the radio bearer granted by the relay node; information about radio bearers not acknowledged by the relay node; information about radio bearers partially granted by the relay node; radio bearer mapping information; Configuration information of a terminal accessing the relay node created by the relay node; information about the address of the relay node side; and information related to security configuration.

According to various embodiments, the second message may further include information on integrated multiple radio bearers.

According to various embodiments, the donor node may include a central unit of the donor node, and the relay node may include a distribution unit of the donor node.

Hereinafter, components of a terminal in the wireless communication system described above are illustrated. Components of a terminal to be described below are components of a general-purpose terminal supported by a wireless communication system, and may be merged or integrated with components of a terminal according to the foregoing contents, and may overlap or conflict with the above drawings. It can be interpreted that the content described with reference takes precedence. The terms "-module", "-unit" or "-er" used below may mean a unit that processes at least one function.

The terminal includes a communication interface, a storage unit and a controller.

The communication interface performs a function of transmitting and receiving signals through a wireless channel. For example, the communication interface performs a conversion function between a baseband signal and a bit stream according to the physical layer standard of the system. For example, in data transmission, a communication interface encodes and modulates a transmission bit stream to generate composite symbols. Also, when receiving data, the communication interface demodulates and decodes the baseband signal to reconstruct the received bit stream. Further, the communication interface up-converts the baseband signal to an RF-band signal, transmits the converted signal through an antenna, and down-converts the RF-band signal received through the antenna into a baseband signal. For example, the communication interface includes a transmission filter, a reception filter, an amplifier, a mixer, an oscillator, and a digital-to-analog converter (DAC). , an analog-to-digital converter (ADC), and the like.

Also, the communication interface may include a plurality of transmit/receive paths. Additionally, the communication interface may include at least one antenna array comprising a plurality of antenna elements. On the hardware side, the wireless communication interface may include a digital circuit and an analog circuit (eg, a radio frequency integrated circuit (RFIC)). A digital circuit may be implemented with at least one processor (eg, DSP). A communication interface may include multiple RF chains. The communication interface may perform beamforming.

The communication interface transmits and receives signals as described above. Accordingly, a communication interface may be referred to as a “transmitter”, “receiver” or “transceiver”. In addition, in the following description, transmission and reception performed through a radio channel may be used as a meaning including processing performed in a communication interface as described above.

The storage unit stores data such as basic programs for operation of the terminal, applications, and setting information. The storage unit may include volatile memory, non-volatile memory, or a combination of volatile and non-volatile memory. In addition, the storage unit provides stored data according to the request of the controller.

The controller controls the overall operation of the terminal. For example, the controller sends and receives signals through a communication interface. Also, the controller writes data to the storage unit and reads the recorded data. The controller can perform protocol stack functions required by communication standards. According to another implementation, a protocol stack may be included in the communication interface. To this end, the controller may include at least one processor or microprocessor or reproduce parts of a processor. Also, a part of the communication interface or controller may be referred to as a communication processor (CP).

According to an embodiment of the present invention, a controller may control a terminal to perform an operation according to an embodiment of the present invention.

Hereinafter, a communication interface in a wireless communication system is illustrated.

The communication interface includes encoding and modulation circuitry, digital beamforming circuitry, a plurality of transmission paths, and analog beamforming circuitry.

Encoding and modulation circuitry performs channel encoding. At least one of a low-density parity check (LDPC) code, a convolution code, and a polar code may be used for channel encoding. An encoding and modulation circuit generates modulation symbols by performing constellation mapping.

A digital beamforming circuit performs beamforming on a digital signal (eg, a modulation symbol). To this end, a digital beamforming circuit multiplexes modulation symbols by beamforming weights. Beamforming weights can be used to change the size and phrase of a signal, and can be referred to as a "precoding matrix" or "precoder". The digital beamforming circuit outputs digital beamformed modulation symbols to a plurality of transmission paths. In this case, according to a multiple input multiple output (MIMO) transmission method, modulation symbols may be multiplexed or the same modulation symbol may be provided to a plurality of transmission paths.

The plurality of transmission paths convert digital beamformed digital signals into analog signals. To this end, each of the plurality of transmission paths may include an inverse fast fourier transform (IFFT) computation unit, a cyclic prefix (CP) insertion unit, a DAC, and an up conversion unit. The CP insertion unit is for an orthogonal frequency division multiplexing (OFDM) method and may be omitted when another physical layer method (eg, a filter bank multi-carrier: FBMC) is applied. That is, the plurality of transmission paths provide independent signal processing processes for a plurality of streams generated through digital beamforming. However, depending on the implementation, some elements of the plurality of transmission paths may be commonly used.

An analog beamforming circuit performs beamforming on an analog signal. To this end, the digital beamforming circuit multiplexes analog signals by beamforming weighting values. The beamformed weights are used to change the amplitude and phrase of the signal. More specifically, the analog beamforming circuit may be configured in various ways according to a connection structure between a plurality of transmission paths and an antenna. For example, each of a plurality of transmission paths may be connected to one antenna array. In another example, multiple transmission paths may be coupled to one antenna array. In another example, multiple transmission paths may be adaptively coupled to one antenna array or may be coupled to two or more antenna arrays.

The methods according to the present invention may be implemented in the form of program instructions that can be executed by various computer means and recorded on a computer readable medium. Computer readable media may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on a computer readable medium may be specially designed and configured for the present invention or may be known and usable to those skilled in computer software.

Examples of computer readable media may include hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions may include not only machine language codes generated by a compiler but also high-level language codes that can be executed by a computer using an interpreter and the like. The hardware device described above may be configured to operate with at least one software module to perform the operations of the present invention, and vice versa.

In addition, the above-described method or device may be implemented by combining all or some of its components or functions, or may be implemented separately.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

100: digital signage control server 200: manager terminal
300: signage device

Claims (9)

In the cloud service-based digital signage control server,
a DB management unit for storing a plurality of image contents;
a signage control unit that outputs a first video content among the plurality of video contents stored in the DB management unit through a display of a predetermined signage device at a preset time;
an interaction control unit recognizing a user and a user terminal of the user using at least one of a camera, a motion sensor, and a beacon included in the signage device; and
An advertisement fee determination unit configured to determine an advertisement fee to be charged to an advertiser corresponding to the video content;
The signage control unit,
Determine the viewing distance of users walking around the signage device, and determine the viewing distance based on at least one of the size of the display of the signage device, the distribution and density of the users, and the moving path of the users. Determine the viewing distance through a mathematical formula;

In the above equation, d is the viewing distance (m), s is the size (inch) of the display, and k is the distance from the signage device to the center point of the first sidewalk or pavement width in the display output direction (m) , w1 means a first weight for the distance to the center point, w2 means a second weight for the size of the display, the w1 is greater than the w2,
The interaction control unit,
The distance between the user terminal and the beacon or the distance between the user terminal and the camera, the time when the user terminal is located in an area within the viewing distance, and the number of other user terminals located in an area within the viewing distance for the last 1 hour Calculate an interaction index, which is a reference value responding to a beacon signal, based on at least one of the number of user terminals that have entered and exited the area within the viewing distance during the last 1 hour. calculate,

In the above equation, E is the interaction index, h is the distance (m) between the user terminal and the beacon or the distance between the user and the camera, and c is the time when the user terminal or the user is located in an area within the viewing distance. (seconds), j is the number of user terminals or users located in the area within the viewing distance, n is the number of user terminals or users who have entered and exited the area within the viewing distance in the last 1 hour,
determining a user terminal whose interaction index is higher than a preset threshold index as a target terminal;
A digital signage control server that provides advertisement information related to the first video content to the user terminal determined as the target terminal. In claim 1,
The interaction control unit,
Recognizing the user terminal, obtaining interest information of the user of the recognized user terminal,
A digital signage control server that searches for content corresponding to the interest information obtained through the DB management unit and outputs an image corresponding to the searched content through the display. In claim 1,
The signage control unit,
outputting a first image to a first area of the display;
A digital signage control server that outputs a second image distinct from the first image to a second area adjacent to the first area of the display. delete delete As a method of controlling cloud service-based digital signage by a processor of a digital signage control server,
Storing a plurality of image contents;
outputting a first video content among the plurality of stored video contents through a display of a predetermined signage device at a preset time;
Recognizing a user using at least one of a camera, a motion sensor, and a beacon included in the signage device;
determining an advertisement fee to be charged to an advertiser corresponding to the video content;
Determine the viewing distance of users walking around the signage device, and determine the viewing distance based on at least one of the size of the display of the signage device, the distribution and density of the users, and the moving path of the users. determining the viewing distance through a mathematical formula;

In the above equation, d is the viewing distance (m), s is the size (inch) of the display, and k is the distance from the signage device to the center point of the first sidewalk or pavement width in the display output direction (m) , w1 means a first weight for the distance to the center point, w2 means a second weight for the size of the display, the w1 is greater than the w2,
The distance between the user terminal and the beacon or the distance between the user terminal and the camera, the time when the user terminal is located in an area within the viewing distance, and the number of other user terminals located in an area within the viewing distance for the last 1 hour Calculate an interaction index, which is a reference value responding to a beacon signal, based on at least one of the number of user terminals that have entered and exited the area within the viewing distance during the last 1 hour. calculating;

In the above equation, E is the interaction index, h is the distance (m) between the user terminal and the beacon or the distance between the user and the camera, and c is the time when the user terminal or the user is located in an area within the viewing distance. (seconds), j is the number of user terminals or users located in the area within the viewing distance, n is the number of user terminals or users who have entered and exited the area within the viewing distance in the last 1 hour,
determining a user terminal whose interaction index is higher than a preset threshold index as a target terminal; and
and providing advertisement information related to the first video content to the user terminal determined as the target terminal. A non-transitory recording medium on which a program for executing the method according to claim 6 is recorded and can be read by a computer. A computer program recorded on a non-transitory recording medium to execute the method according to claim 6 in a digital signage control server. As a cloud service-based digital signage control system,
Digital signage control server based on cloud service;
a signage device interworking with the digital signage control server; and
Including a manager terminal for managing the digital signage control server,
The server,
a DB management unit for storing a plurality of image contents;
a signage control unit that outputs a first video content among the plurality of video contents stored in the DB management unit through a display of a predetermined signage device at a preset time;
an interaction control unit recognizing a user using at least one of a camera, a motion sensor, and a beacon included in the signage device; and
An advertisement fee determination unit configured to determine an advertisement fee to be charged to an advertiser corresponding to the video content;
Determine the viewing distance of users walking around the signage device, and determine the viewing distance based on at least one of the size of the display of the signage device, the distribution and density of the users, and the moving path of the users. Determine the viewing distance through a mathematical formula;

In the above equation, d is the viewing distance (m), s is the size (inch) of the display, and k is the distance from the signage device to the center point of the first sidewalk or pavement width in the display output direction (m) , w1 means a first weight for the distance to the center point, w2 means a second weight for the size of the display, the w1 is greater than the w2,
The interaction control unit,
The distance between the user terminal and the beacon or the distance between the user terminal and the camera, the time when the user terminal is located in an area within the viewing distance, and the number of other user terminals located in an area within the viewing distance for the last 1 hour Calculate an interaction index, which is a reference value responding to a beacon signal, based on at least one of the number of user terminals that have entered and exited the area within the viewing distance during the last 1 hour. calculate,

In the above equation, E is the interaction index, h is the distance (m) between the user terminal and the beacon or the distance between the user and the camera, and c is the time when the user terminal or the user is located in an area within the viewing distance. (seconds), j is the number of user terminals or users located in the area within the viewing distance, n is the number of user terminals or users who have entered and exited the area within the viewing distance in the last 1 hour,
determining a user terminal whose interaction index is higher than a preset threshold index as a target terminal;
and providing advertisement information related to the first video content to the user terminal determined as the target terminal.