KR20130017322A - Video service construction system and method based on site information - Google Patents

Video service construction system and method based on site information Download PDF

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Publication number
KR20130017322A
KR20130017322A KR1020110079688A KR20110079688A KR20130017322A KR 20130017322 A KR20130017322 A KR 20130017322A KR 1020110079688 A KR1020110079688 A KR 1020110079688A KR 20110079688 A KR20110079688 A KR 20110079688A KR 20130017322 A KR20130017322 A KR 20130017322A
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camera
information
base station
region
user terminal
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KR1020110079688A
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Korean (ko)
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문승훈
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에스케이플래닛 주식회사
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Priority to KR1020110079688A priority Critical patent/KR20130017322A/en
Publication of KR20130017322A publication Critical patent/KR20130017322A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information

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  • Tourism & Hospitality (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • General Business, Economics & Management (AREA)
  • Human Resources & Organizations (AREA)
  • Marketing (AREA)
  • Primary Health Care (AREA)
  • Strategic Management (AREA)
  • Physics & Mathematics (AREA)
  • Economics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE: A base station information based image service construction system and a method are provided to obtain an environment value corresponding to environment of a desired region, thereby calculating a camera location photographing an optimized image corresponding to a region property. CONSTITUTION: A base station information database(210) stores base station information of each region. A region geographic information database(230) stores geographical information for each region. When a simulation request is inputted for camera installation from a user terminal(100), a service management module(240) calculates a candidate location list for the camera installation by analyzing a specific region. The service management module provides the candidate location list to the user terminal. [Reference numerals] (100) User terminal; (200) Image service providing device; (210) Base station information DB; (220) Camera information DB; (230) Region geographic information DB; (240) Service management module; (300) Communication network; (400) Base station control device; (500) Camera

Description

BASE SERVICE CONSTRUCTION SYSTEM AND METHOD BASED ON SITE INFORMATION}

The present invention relates to a video service system and method for photographing and providing an image of a specific region. Specifically, the present invention utilizes base station information provided by a mobile communication company in installing a plurality of cameras to capture an image of a specific region. By simulating the environmental values related to the installation, such as the number, location, and direction of the cameras that can be installed in the area, calculate the camera position to capture the best image according to the characteristics of each area, and the time and cost required to install the camera through automatic simulation The present invention relates to a video service construction system and a method for optimizing the service.

In general, in order to provide a video service for a certain area such as a stadium or a concert hall, a plurality of cameras must be installed in the corresponding area.

In the conventional camera installation method, a manager selects a location suitable for capturing an image of a specific location, and establishes facilities, power, and communication facilities necessary for installing a camera at the location.

However, when the administrator selects a location where the camera can be installed, the manager selects an installable location by using location information such as a map and moves to the selected location to directly check whether the camera can be installed. This process has a disadvantage that a lot of cost and time is generated.

In addition, the conventional camera installation method is difficult to predict the optimal environmental conditions, such as how many cameras can be installed in which location according to a specific region when installing a plurality of cameras, the installation cost and time can be wasted accordingly There is nothing else.

The present invention has been made to solve the above problems, the base station information provided by the mobile carrier when installing a plurality of cameras to provide a video service for a certain area, that is, the base station latitude and longitude information, building and antenna height, azimuth Calculate the camera position to capture the best image according to the characteristics of each region by simulating the environmental values related to the installation, such as the number, location, and direction of the camera that can be installed in the area by using the tilt angle, tilt angle, etc. The purpose of the present invention is to provide a video service construction system and method that can optimize the time and cost required.

To this end, according to the first aspect of the present invention, the base station information-based video service providing apparatus of the present invention, the base station information DB for storing the base station information including the height of the building, the azimuth and the slope of the antenna from the base station located in each region; A regional geographic information DB for storing geographic information including installation information and road information on a surface of each region; And inputting a simulation request for installing a camera from a user terminal based on the base station information previously stored in the base station information DB and the geographic information previously stored in the local geographic information DB for a specific region, and selecting a list of candidate positions for installing the camera. And a service management module for providing the calculated and calculated candidate location list to the user terminal.

In addition, the base station information-based image service providing apparatus of the present invention further comprises a camera information DB that stores camera-related information including the number of installation, wide-angle width, resolution of the camera installed in each region, the service management module is Upon receiving a request for image information on a desired region from a user terminal, the camera list of the region is provided from the camera information for each region stored in the camera information DB, and the image is obtained from the camera list by acquiring image information of the camera selected by the user terminal. Characterized in that provided to the terminal.

According to a second aspect of the present invention, a method for providing a base station information-based video service of the present invention comprises the steps of: receiving a simulation request from a user terminal for a camera installable area; Calculating a candidate location list for installing the camera by simulating the base station information and the geographic information stored in advance for the requested area; And providing the calculated candidate position list to the user terminal.

In the method of the present invention, the base station information is periodically updated from the system of the telecommunication company.

In the method of the present invention, the step of receiving a simulation request from the user terminal includes inputting a simulation condition of any one or more of a region, a number of cameras to be installed, an installation height, and an azimuth angle from which the camera is to be installed from the user terminal. It is characterized by.

In addition, in the method of the present invention, the step of simulating uses the altitude of the building, the azimuth and inclination of the antenna from the pre-stored base station information, and installs the camera using the information of the building on which the base station is installed and the road information from the geographic information. It is characterized by calculating the possible candidate position.

In addition, in the method of the present invention, the candidate location list where the camera can be installed includes the area where the camera can be installed, the number of cameras, the installation location, height, and azimuth value according to the number of cameras.

In the method of the present invention, the method may further include providing estimated coverage information of a photographable image with respect to the candidate position list selected by the user.

According to a third aspect of the present invention, a user terminal for providing a base station information-based video service of the present invention, the transmission and reception unit for transmitting and receiving data; An input unit to receive a user's operation; If the simulation condition for the installation of the camera for each region is input from the input unit to send a simulation condition through the transceiver to request a simulation, and receiving a simulation result through the transceiver comprising a control unit for controlling to display the simulation result It features.

According to the fourth aspect of the present invention, the recording medium of the present invention, when executed by the terminal, receives a simulation condition for installing a camera for each region, requests a simulation based on the received simulation condition, and according to the simulation request. And a command for obtaining a candidate location list for installing a camera in a corresponding region and displaying the candidate location list.

According to the present invention, when constructing a video service system, by acquiring environmental values such as the number of installations, the position, the height, and the orientation value of the cameras that can be installed according to the desired local environment, the camera position capable of capturing an optimal image according to the characteristics of each region. Can be calculated, and the cost and schedule required to build a video system can be minimized.

In addition, in the case of a service user, there is an effect that the user can obtain the optimal image information that he / she wants in view of the list of possible images for the position where he / she wants to view the image, in consideration of the angle and the image quality. .

1 is a diagram illustrating a network configuration of a video service building system according to the present invention.
2 is a diagram illustrating a user terminal of a video service building system according to the present invention.
3 is a flowchart illustrating a method for building a video service system using base station information in a video service building system according to the present invention.
4 is a detailed flowchart illustrating a method of constructing an image system of FIG. 3.
5 is a flowchart illustrating a method of providing an image service after installing a camera through the method of FIG. 3.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The configuration of the present invention and the operation and effect thereof will be clearly understood through the following detailed description. Prior to the detailed description of the present invention, the same components will be denoted by the same reference numerals even if they are displayed on different drawings, and the detailed description will be omitted when it is determined that the well-known configuration may obscure the gist of the present invention. do.

1 is a diagram illustrating a network configuration of a video service building system according to the present invention.

The video service building system according to the present invention includes a base station 500 capable of inferring characteristics of sea level, population mobility, etc. of each region through the user terminal 100, the video service providing apparatus 200, and the communication network 300. It is configured to include.

The user terminal 100 requests a simulation to the image service providing apparatus 200 to install a camera, and receives the simulation result from the image service providing apparatus 200. In order to receive such a service, the user terminal 100 is equipped with a video service program to which a simulation function is applied, and any one or more of an area, a number of cameras to be installed, an installation height, and an azimuth angle to which the camera is to be installed through the video service program are provided. Simulation conditions can be entered. Thus, the user terminal 100 may request a simulation from the image service providing apparatus 200.

The user terminal 100 uses a terminal that can communicate with the image service providing apparatus 200 through the communication network 300. For example, a terminal capable of communicating via a mobile communication network (CDMA, W-CDMA, etc.) such as a laptop, tablet PC, PDA (Personal Digital Assistants), MP3 player, smart phone, wireless Internet network (WiBro, etc.) or Wi A terminal capable of transmitting and receiving data through short-range communication such as Wi-Fi may be used.

The communication network 300 is a network that provides a service by communicating with the user terminal 100 or the video service providing apparatus 200 by wire or wireless. That is, the communication network 300 manages the base station 500 and provides the base station information obtained from the base station 500 to the video service providing apparatus 200. In addition, the communication network 300 transmits the simulation request message received from the user terminal 100 to the video service providing apparatus 200 and, conversely, the simulation result received from the video service providing apparatus 200 to the user terminal 100. By transmitting the interface between the user terminal 100 and the video service providing apparatus 200.

The communication network 300 may be a wired Internet network, a wireless data network (Internet network, IMS, etc.) connected via a mobile communication network (CDMA, W-CDMA, etc.), a satellite communication network, or an Internet network connected via Wi-Fi. And the like. Specifically, the CDMA network may be connected to a data network through a PDSN (Packet Data Serving Node), and the W-CDMA network may be connected to a data network through a Gateway GPRS Support Node (GGSN). In addition, in an area such as a hot-spot, it may be connected to an internet network through short-range communication such as Wi-Fi.

For example, the communication network 300 connected to the base station 500 may use a mobile communication network, and the communication service network 300 connected to the video service providing apparatus 200 and the user terminal 100 may be an internet network.

The base station control apparatus 400 is built in a communication network 300 for each carrier and manages the base station 500 installed in each region (A, B, C), and the base station 500 at the request of the video service providing apparatus 200. Provides information (hereinafter referred to as base station information).

The base station information includes the altitude (elevation height) of the building where the base station 500 is located, the azimuth angle and the inclination of the antenna for each sector. The base station information can be used to build a video service system that can cover the image of the region with a minimum camera when the camera is installed in the region.

If there is a simulation request for installing a camera from the user terminal 100, the video service providing apparatus 200 may analyze the base station information and the geographic information for a specific region and calculate an optimal position for installing the camera in the corresponding region.

In this configuration, the video service providing apparatus 200 includes a base station information DB 210, a camera information DB 220, a local geographic information DB 230, and a service management module 240.

The base station information DB 210 stores base station information including an elevation of the building, an azimuth angle, and an inclination of the antenna from the base station located in each region. The base station information is provided from the base station control apparatus 400 of the communication network 300. In general, the antenna of the base station is located so that the communication of the subscribers of the carrier to the area where there are many calls. Therefore, the location of the antenna, that is, the azimuth and the inclination, can be inferred from the region with high floating population or the region with high call volume.

The camera information DB 220 stores camera-related information including the number of installations of cameras installed in each region, a wide angle width of a camera, a resolution, and the like, how much the installed camera has.

In addition, the camera information DB 220 stores image information of a corresponding region of each camera.

The regional geographic information DB 230 stores geographic information for each region including installation information on roads, road information, and the like on buildings, trees, and water.

The base station information DB 210, the camera information DB0 220, and the local geographic information DB 230 may periodically update the corresponding information.

When the simulation request is input from the user terminal 100, the service management module 240 may install the camera based on the base station information and the local geographic information previously stored in the base station information DB 210 and the local geographic information DB 230. Analyze Through the analysis, the service management module 240 calculates a candidate location list that satisfies the simulation condition received from the user terminal 100. In this case, the candidate position list includes a region where the camera can be installed, the number of cameras, an installation position, a height, an azimuth value, and the like.

For example, if a simulation request is made for the number and location of cameras that can cover more than 50% of an area for a specific area A, the service management module 240 simulates the optimal number of cameras that can be installed in a specific area A. A list of candidate locations, including position, height, and azimuth, may be provided by camera or by installation location.

In addition, when a simulation request is made by limiting the number of camera installations to 100 in a specific A region, the service management module 240 calculates and provides a list of 100 candidate positions for a specific A region.

In addition, the service management module 240 provides a camera list of a corresponding region from the camera information for each region stored in the camera information DB 220 when the image information of the desired region is requested from the user terminal 100. In addition, if there is a selection of any one camera from the user terminal 100 in the camera list provided to the user terminal 100, the service management module 240 obtains image information about the camera selected by the user terminal 100, Provided to the user terminal 100. Image information about the camera may be provided in real time from the camera 500 installed in each region or may utilize image information stored in the camera information DB 220.

In addition, the service management module 240 may provide the estimated coverage information that may be photographed by the camera with respect to the calculated candidate location list. Expected coverage may be a range of areas that can provide image information according to the field of view of the camera, and may also include an area that includes the area most directed by the base station antenna.

Therefore, the video service construction system according to the present invention analyzes the installation position and direction of the camera that can provide the most efficient video information for a specific area by using the altitude, base station antenna direction and height, and angle information of the building where the base station is installed. do. According to this analysis, if a camera is installed, it is possible to build a real-time video service system that can cover as many users as possible and especially a large floating population with a minimum number of cameras.

2 is a diagram illustrating a user terminal of a video service building system according to the present invention.

The user terminal according to the present invention includes a transceiver 110, a controller 120, a storage 130, an input unit 140, and a display unit 150.

The transceiver 110 transmits and receives data to and from the network-based image service providing apparatus 200 of FIG. 1 through a communication network 300 of FIG. 1.

The storage unit 130 stores a program necessary for controlling the operation of the terminal and a video service program for receiving a regional video service.

The input unit 140 is an apparatus for interfacing with a user and includes various function keys and keys for text input, and outputs key input data corresponding to a key operated by the user to the controller 120.

The display unit 150 displays display data provided from the control unit 120, and in particular, the present invention displays a screen for inputting simulation conditions and providing the simulation results.

When the simulation condition for installing the camera is input from the user through the input unit 140, the controller 120 transmits input data corresponding thereto to the transmitter / receiver 110 to simulate the external image service providing apparatus (200 of FIG. 1). Ask. In addition, the controller 120 obtains a simulation result from the external image service providing apparatus (200 of FIG. 1) through the transceiver 110 and transmits the simulation result to the display unit 150.

In addition, the control unit 120 executes a projection service program stored in the storage unit 130 according to a user's request, and requests a selection of a camera or image information of a camera of a desired region from the input unit 140 during execution. In response to the request, when the camera list or the image information of the camera is received from the transmitter / receiver 110, it is transmitted to the display unit 150.

For example, when the user selects a cross-section area in front of the XX building with a specific point on the electronic map, the controller 120 receives a list of cameras providing image services for the corresponding area through simulation, and then uses the received camera list. May be provided to the display unit 150 in an order of close distance from the selected region or in accordance with a predetermined criterion.

Meanwhile, the user terminal configured as described above may be implemented in the form of a recording medium including instructions executable by a computer, such as a program module executed by the computer. The computer-readable recording medium receives a simulation condition for installing a camera for each region, requests a simulation to analyze according to the received simulation condition, and obtains a list of candidate positions for installing a camera in the region according to the request. It includes.

Now, a method of constructing a base station information based video system using the above system will be described.

3 is a flowchart illustrating a method of building a video service system using base station information in the video service building system according to the present invention, and FIG. 4 is a detailed flowchart of the video system building method of FIG. 3.

First, referring to FIG. 3, the user terminal 100 executes an image service program including a simulation function in order to receive an image service for a certain region (S100).

Thereafter, the user terminal 100 inputs a simulation condition of any one or more of an area to which the camera is to be installed, the number of cameras to be installed, an installation height, and an azimuth (S110). For example, by executing an application to which the simulation service of the present invention is applied, an area to install a camera on a web map can be selected.

Thereafter, the user terminal 100 requests a simulation to the image service providing apparatus 200 (S120).

The apparatus 200 for providing a video service calculates a candidate location list for installing a camera by performing simulation based on previously stored base station information and local geographic information with respect to a simulation condition received from the user terminal 100 (S130).

The candidate location list for camera installation may basically include location information of one or more cameras. In general, the larger the area to cover, the greater the number of cameras. The position information includes an installation position, height, azimuth value, etc. according to the number of cameras.

The base station information includes the information on the altitude of the building in which the base station is installed, the azimuth angle and the inclination of the antenna, and the regional geographic information includes information on the building in which the base station is installed, road information, and the like. It is possible to analyze the environmental values that can be installed, such as the installation location, height, and orientation of the device.

In this case, the base station information is received and updated periodically or whenever there is update information from the communication company's system, that is, the base station control apparatus. In addition, the regional geographic information may be provided and updated periodically or whenever there is update information from a system for managing terrain or geographic information.

Thereafter, the video service providing apparatus 200 provides the calculated candidate location list to the corresponding user terminal 100 (S140).

Thereafter, the user terminal 100 selects an optimal position corresponding to the simulation condition from the candidate position list provided from the image service providing apparatus 200 (S150).

In addition, the apparatus 200 for providing a video service may provide estimated coverage information of a recordable image with respect to each candidate location list at the request of the user terminal 100 or when providing the candidate location list to the user terminal 100. Can be. Therefore, it is necessary to provide an imaging system that can cover as many floating populations as possible with a minimum of cameras.

Next, referring to FIG. 4, when the user terminal 100 wants to change the installation height, the azimuth angle, the number of cameras to be installed, the coverage area of the corresponding area, and the like after the first simulation, the simulation condition is re-entered. (S200).

Thereafter, the user terminal 100 re-requests the simulation under the changed simulation condition to the image service providing apparatus 200 (S210).

Then, the image service providing apparatus 200 re-performs the simulation based on the latest stored base station information and regional geographic information (S220).

The video service providing apparatus 200 provides the candidate location list calculated as a simulation result to the corresponding user terminal 100 (S230).

Next, a method of providing an image service after installing the camera through the above process will be described.

Referring to FIG. 5, the user terminal 100 selects a desired region through an image service program and requests an image service from the image service providing apparatus 200 (S300 and S310).

The video service providing apparatus 200 searches and detects a camera list registered in a region requested by the user terminal 100 in a camera information DB, and provides the detected camera list to a corresponding user terminal 100 (S320, S330). ).

The user terminal 100 selects one or more desired cameras from the camera list (S340), and requests the image service providing apparatus 200 for image information with respect to the selected camera (S350).

The video service providing apparatus 200 obtains image information provided by a camera selected by the user terminal 100 and provides the image information to the user terminal 100 (S360).

Through this process, the user terminal 100 checks a list of possible images for the desired location of the image in a specific region in the form of a preview, and among them, can view the optimal image desired by considering the angle and the image quality. have.

The foregoing description is merely illustrative of the present invention, and various modifications may be made by those skilled in the art without departing from the spirit of the present invention. Accordingly, the embodiments disclosed in the specification of the present invention are not intended to limit the present invention. The scope of the present invention should be construed according to the following claims, and all the techniques within the scope of equivalents should be construed as being included in the scope of the present invention.

In the conventional video service system, the location where the camera can be installed is determined by using a map to acquire image information of a specific region. However, the present invention provides base station information provided by a mobile communication company, that is, base station latitude and longitude information, building and antenna height, Using the azimuth and tilt angles, you can optimize the time and cost of camera installation by calculating the optimal environmental conditions by simulating the environmental values related to the installation, such as the number, location, height and azimuth of the cameras that can be installed in the area. Can be. In this respect, not only the use of the related technology but also the possibility of construction and sales of the applied server is not only sufficient but also practically tangible, and thus it is a useful invention with industrial applicability.

100: user terminal 200: video service providing apparatus
210: base station information DB 220: camera information DB
230: geographic information DB 240: service management module
300: network 400: base station controller
500: base station 110: transceiver
120: control unit 130: storage unit
140: input unit 150: display unit

Claims (13)

A base station information DB storing base station information including an elevation of a building, an azimuth angle, and an inclination of an antenna from a base station located in each region;
A regional geographic information DB for storing geographic information including installation information and road information on a surface of each region; And
When a simulation request for camera installation is input from a user terminal, a candidate location list for camera installation is calculated by analyzing base station information previously stored in the base station information DB and geographic information previously stored in the local geographic information DB for a specific region. And providing the calculated candidate location list to the user terminal.
Base station information based video service providing apparatus comprising a. The method of claim 1,
Further comprising a camera information DB for storing camera-related information including the number of installation, wide-angle width, resolution of the camera installed in each region,
When the service management module receives a request for image information on a desired region from the user terminal, the service management module provides a camera list of the region from the camera information for each region stored in the camera information DB, and the image of the camera selected by the user terminal in the camera list. The base station information-based video service providing apparatus characterized in that the information is obtained and provided to the user terminal. The method of claim 1,
The candidate location list where the camera can be installed includes an area where the camera can be installed, a number of cameras, an installation location, a height, and an orientation value. The method of claim 1,
The service management module
The base station information-based image service providing apparatus according to the calculated candidate position list to provide the estimated coverage information of the image that can be photographed. Receiving a simulation request for a camera installable area from a user terminal;
Calculating a candidate location list for installing the camera by simulating the base station information and the geographic information stored in advance for the requested area; And
Providing the calculated candidate position list to the user terminal;
Method for providing a base station information-based video service comprising a. The method of claim 5, wherein
And the base station information is periodically updated from a system of a communication company. The method of claim 5, wherein
Receiving a simulation request from the user terminal
And inputting a simulation condition of at least one of a region, a number of cameras to be installed, an installation height, and an azimuth angle from which the camera is to be installed from the user terminal. The method of claim 5, wherein
In the step of simulating
The base station information is calculated by using the altitude of the building, the azimuth angle and the inclination of the antenna from the previously stored base station information, and the candidate position where the camera can be installed using the information of the building where the base station is installed and the road information from the geographic information. Method for providing a base video service. The method of claim 5, wherein
The candidate location list in which the camera can be installed includes a location where the camera can be installed, the number of cameras, an installation location, a height, and an orientation value according to the number of cameras. The method of claim 5, wherein
Providing predicted coverage information of a recordable image with respect to the candidate position list selected by the user;
The method for providing a base station information-based video service further comprising. Transmitting and receiving unit for transmitting and receiving data;
An input unit to receive a user's operation;
Control unit for controlling to display the simulation result when the simulation condition for the camera installation for each region is input from the input unit to send the simulation condition through the transceiver unit and to receive the simulation result through the transceiver unit.
User terminal for providing a base station information-based video service comprising a. The method of claim 11,
The control unit,
The base station information-based video service, which requests video information of a camera or a camera installed in each region and controls to display the received data when the camera list or the video information is received through the transceiver according to the request. User terminal for providing. When executed by the terminal,
Input simulation conditions for camera installation in each region,
Request a simulation based on the received simulation conditions,
And a command for obtaining a list of candidate locations capable of installing a camera in a corresponding region and displaying the candidate location list according to the simulation request.
KR1020110079688A 2011-08-10 2011-08-10 Video service construction system and method based on site information KR20130017322A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220017208A (en) 2020-08-04 2022-02-11 권정혁 Server for generating best inforamtion on stadium cameras

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220017208A (en) 2020-08-04 2022-02-11 권정혁 Server for generating best inforamtion on stadium cameras

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