WO2016175621A1 - System and method for providing theater monitoring service - Google Patents

System and method for providing theater monitoring service Download PDF

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Publication number
WO2016175621A1
WO2016175621A1 PCT/KR2016/004564 KR2016004564W WO2016175621A1 WO 2016175621 A1 WO2016175621 A1 WO 2016175621A1 KR 2016004564 W KR2016004564 W KR 2016004564W WO 2016175621 A1 WO2016175621 A1 WO 2016175621A1
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WO
WIPO (PCT)
Prior art keywords
theater
log data
state information
central server
server
Prior art date
Application number
PCT/KR2016/004564
Other languages
French (fr)
Inventor
Hyukju Kwon
Myung Chul Kim
Hyun Park
Hyung Jin Tak
Original Assignee
Cj 4Dplex Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cj 4Dplex Co., Ltd. filed Critical Cj 4Dplex Co., Ltd.
Publication of WO2016175621A1 publication Critical patent/WO2016175621A1/en

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
    • A63J25/00—Equipment specially adapted for cinemas
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
    • A63J5/00—Auxiliaries for producing special effects on stages, or in circuses or arenas
    • 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
    • G06Q10/00—Administration; Management
    • G06Q10/20—Administration of product repair or maintenance
    • 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

Definitions

  • the present invention relates to a system and method for providing a service for monitoring and controlling an overall situation of 4D theaters installed and operated in several places. More particularly, the present invention includes an operation server configured to collect state information about an effect device, motion chairs, and a cinema server included in a theater and a central server configured to receive log data including the state information from the operation server and to generally provide a user with state information about all of theaters.
  • a 4D theater is equipped with various attached devices in order to implement more various effects and a realistic content playback environment for audiences.
  • the 4D theater is equipped with many attached devices, such as a cinema server for managing content played back in a theater, effect devices for providing various special effects, and motion chairs for providing stereoscopic motions to audiences.
  • a cinema server for managing content played back in a theater
  • effect devices for providing various special effects
  • motion chairs for providing stereoscopic motions to audiences.
  • An embodiment of the present invention relates to a system and method for monitoring an overall operating state of 4D theaters distributed widely as described above, in particular, a normal driving state of attached devices included in each theater.
  • the present invention has been invented to satisfy the aforementioned technical needs and to provide additional elements which may not be easily invented by those skilled in the art.
  • An object of the present invention is to provide a theater monitoring system for enabling a user who manages a plurality of 4D theaters to monitor the real-time operating state of all the 4D theaters and a theater monitoring method using the system.
  • an object of the present invention is to enable a user at one place to easily check the operating state of all of theaters by collecting state information about various attached devices included in each theater in real time, generating log data having a single predetermined format and rule using the state information, and concentrating the log data onto a single central server.
  • an object of the present invention is to monitor the operating state of a plurality of theaters and to also issue a control command to each of attached devices included in each theater in addition to each theater.
  • a proposed theater monitoring system includes an operation server configured to receive state information from attached devices within a theater, generate log data based on the state information, and transmit the generated log data to a central server and the central server configured to receive the log data from the operation server, extract part of or the entire state information from the log data, and store the extracted state information in a database.
  • the attached device may include at least one of an effect device, a motion chair, a projection device, a cinema server, and an advertising server.
  • the motion chair may include a seat sensor capable of detecting seating.
  • the log data may include a content title, a screening day, a screening time, a running time, the number of showings, or whether screening will be performed.
  • the log data may include a seating rate, motion strength, whether a driving error has occurred, a part in which the driving error has occurred, driving error code, or a normal driving rate.
  • the central server may receive a control command for controlling one or more of the attached devices within the theater from a user and transmit the control command to an operation server corresponding to the theater.
  • the control command may include a reboot command for an attached device in which an error has occurred within the theater.
  • a central server includes a log data collection unit configured to receive log data including state information about attached devices within a theater from an operation server, a log data processing unit configured to extract part of or the entire state information from the log data and to store the extracted state information in a database, and the database configured to store the state information.
  • the log data processing unit may transmit a notification message to a theater or theater administrator corresponding to the log data if error information is included in the log data.
  • the central server may further include an access management unit configured to receive an access request from a user terminal and to determine whether the user terminal has access rights and an information providing unit configured to provide the user terminal having legitimate access rights with the state information stored in the database.
  • an access management unit configured to receive an access request from a user terminal and to determine whether the user terminal has access rights
  • an information providing unit configured to provide the user terminal having legitimate access rights with the state information stored in the database.
  • the central server may further include a control unit configured to receive a control command from a user and to transmit the control command to one or more operation servers.
  • a method for providing a theater monitoring service includes receiving log data including state information about attached devices within a theater, extracting part of or the entire state information from the log data, and storing the state information in a database.
  • the method for providing a theater monitoring service may further include transmitting a notification message to a theater or theater administrator corresponding to the log data if error information is included in the log data.
  • the method for providing a theater monitoring service may further include receiving an access request from a user terminal, checking whether the user terminal has access rights, and providing the user terminal with the state information stored in the database if the user terminal has the access rights.
  • the method for providing a theater monitoring service may further include receiving a control command from a user terminal and transmitting the control command to one or more operation servers.
  • state information about various attached devices included in each theater can be collected in real time, and log data of a predetermined format is generated and stored in a single central server. Accordingly, a user can monitor all of theaters more easily.
  • FIG. 1 shows a schematic configuration of a theater monitoring system according to an embodiment of the present invention.
  • FIG. 2 shows an example in which an operation server and attached devices have been installed in one 4D theater.
  • FIG. 3 is a block diagram showing the detailed elements of a central server according to an embodiment of the present invention.
  • FIG. 4 shows the tree structure state information constructed in a database
  • FIG. 5 is a flowchart illustrating a method for providing a theater monitoring service according to an embodiment of the present invention.
  • FIGS. 6 to 8 illustrate the state in which the theater monitoring system provides information to a user according to an embodiment of the present invention.
  • a theater monitoring system according to an embodiment of the present invention is schematically described below with reference to FIGS. 1 and 2.
  • the theater monitoring system is a system for monitoring 4D theaters installed in a wide area in a lump, and it includes an operation server 100 and a central server 200, that is, core elements. Furthermore, the system may further include a user terminal 300, such as a user PC and a user smart phone for accessing the central server 200 and checking state information about each of 4D theaters.
  • a user terminal 300 such as a user PC and a user smart phone for accessing the central server 200 and checking state information about each of 4D theaters.
  • the operation server 100 is included in each theater and functions to manage attached devices installed in each theater. More specifically, the operation server 100 receives state information from attached devices, generates log data based on the state information, and transmits the generated log data to the central server 200.
  • the attached devices refer to a variety of types of devices for providing audiences with a screening service in each theater.
  • FIG. 2 shows an example in which attached devices have been installed in a theater.
  • each theater may include an effect device 110, a projection device 120, and a motion chair 130 in order to provide audiences with a content screening service, and may further include a cinema server 140 and an advertising server 150.
  • the effect device 110 is a device for providing audiences with 4D effects simultaneously with the playback of content.
  • the effect device 110 may include a water spray device, a fog device, a bubble device, and a fan.
  • the projection device 120 refers to a device for projecting a content playback screen to a projection plane.
  • An embodiment of the present invention is not limited to one projection device 130.
  • the theater may include a plurality of projection planes installed to surround seats and a plurality of the projection devices 130 configured to project content onto the respective projection planes, thereby being capable of providing a more realistic content watching environment to audiences.
  • the motion chair 130 is an attached device for providing a motion to a seated audience in various directions.
  • the motion chair 120 may be driven in various aspects, such as roll, pitch, yaw, heave, sway, and surge. Furthermore, the intensity of a movement of the motion chair can also be controlled.
  • the motion chair 130 may further include a seat sensor capable of detecting whether an audience has been seated in the motion chair.
  • the seat sensor may be configured to detect an audience's weight applied to the motion chair 130 using a pressure sensor installed in the lower seat plane of the motion chair 130 or the back of the chair or may be configured to detect whether an audience has been seated in the motion chair 130 using a laser radiation device and a laser reception device installed elbow chairs on both sides of the motion chair 130.
  • the cinema server 140 is a device for receiving external cinema content data and playing back the received cinema content data.
  • the cinema server 140 plays back cinema content data according to a predetermined organization schedule a specific theater for a specific time at a specific point of time.
  • a predetermined organization schedule is not made out by an operating subject who provides a screening service, but is made out by the subject who provides content.
  • the organization schedule may not be randomly changed and modified, and cinema content is played back according to a predetermined organization schedule. Accordingly, an operating subject who provides a screening service, that is, a user according to an embodiment of the present invention, may need to continue to check whether a normal screening environment is maintained during the playback time of cinema content by monitoring a screening environment in real time with respect to a specific theater in which cinema content is played back.
  • the advertising server 150 means a device for receiving advertising content data from an external server, for example, a server managed by an advertiser and playing back the advertising content data.
  • the advertising content data is played back before cinema content is actually screened or after the screening of cinema content is terminated.
  • the advertising content is also played back according to a predetermined organization schedule.
  • the contents of the advertising content for example, advertising subtitles, some advertising screen, and an advertising playback time may be changed and modified.
  • a variety of attached devices which may be included in one theater, such as that described above, is connected to one operation server 100 over wired and/or wireless networks. Each of the attached devices transfers its state information to the operation server 100 in real time or in a specific cycle.
  • the log data means that the contents of the state information have been recorded over time.
  • the log data is generated in the form of a single unified standard.
  • Such log data is used as a source from which the central server 200 extracts state information. If an error occurs in attached devices within each theater, the log data helps with giving a control command for a corresponding attached device. In particular, the log data is usefully used to find the cause of a corresponding error that has occurred.
  • the operation server 100 may include a variety of pieces of information in log data based on state information received from each attached device.
  • log data generated by the operation server 100 may include a title, a screening day, a screening time, a running time, the number of showings of cinema content and/or whether screening will be performed.
  • the log data may include the title, advertiser, screening time, running time and/or the number of showings of advertising content and/or whether the screening of the advertising content will be performed.
  • log data may include pieces of information capable of checking whether an error has occurred in a device and the contents of an error generated in a device, such as whether a driving error has occurred, a part in which a driving error has occurred, driving error code, or a normal driving rate.
  • Whether a driving error has occurred, a part in which a driving error has occurred, and driving error code are pieces of information indicative of whether there is a part that belongs to various parts forming each device and that has an error, that an error has occurred in which part if the error has occurred, and that which error has occurred in a corresponding part, respectively.
  • the pieces of information are included in one log data and transmitted to the central server 200.
  • the central server 200 provides such information to a user.
  • Log data generated based on the state information of the motion chair 130 may further include a seating rate or motion strength information.
  • the seating rate is indicative of the percentage of the motion chairs 130 in which audiences have been seated in a theater.
  • a prerequisite is that state information is received from all of the motion chairs 130 within the theater.
  • the motion strength is indicative of the strength of the motion chair 130 that now moves in association with cinema content in a numerical form.
  • the operation server 100 generates log data using such a method and transmits the log data to the central server 200.
  • the log data is transmitted from the operation server 100 to the central server 200 through the Internet.
  • one 4D theater is equipped with one operation server 100.
  • the operation servers 100 of 4D theaters installed in respective areas, for example, the operation servers 100 (e.g., 100a, 100b, 100c, ...) installed in a theater in New York of U.S.A., a theater in Wangsimni of Korea, and a theater in Tokyo of Japan transmit log data to the central server 200 in real time or in a predetermined cycle.
  • the central server 200 according to an embodiment of the present invention is described below with reference to FIGS. 1 and 3.
  • the central server 200 functions to receive log data from the plurality of operation servers 100, to extract part of or the entire state information from the received log data, and to store the extracted state information in a database 230.
  • the central server 200 refers to a device for collecting data (or log data) capable of checking the internal operating state of theaters from the theaters installed nationwide or all over the world and comprehensively managing the data.
  • data or log data
  • the operating state of a plurality of theaters installed in a wide area can be managed in one device.
  • the central server 200 is not limited to only the function for receiving log data from the operation servers 100.
  • the central server 200 may receive a control command capable of controlling each of theaters, more precisely, attached devices included in each theater from a user, and may transmit the control command to the operation server 100.
  • the theater monitoring system includes a state information report system from the operation servers 100 to the central server 200 and a control command transfer system from the central server 200 to each of the operation servers 100, thereby enabling a user to perform interactive communication.
  • the central server 200 includes a log data collection unit 210, a log data processing unit 220, a database 230, an access management unit 240, an information providing unit 250, and a control unit 260.
  • the log data collection unit 210 receives log data, including state information about attached devices included in each theater, from each of the plurality of operation servers 100.
  • the log data corresponds to a specific theater or a specific operation server 100 and includes an identifier for identifying the theater or the operation server 100.
  • a theater name or theater unique code may be used as the identifier.
  • the log data processing unit 220 extracts part of or the entire state information from the received log data and stores the extracted state information in the database 230.
  • the log data processing unit 220 restores the state information by decoding the log data received from the operation server 100, and classifies the restored state information into state information that needs to be stored in the database 230 and state information that does not need to be stored in the database 230.
  • a criterion for the classification may be freely changed by a user who operates the central server 200.
  • a user may set state information, such as a content title, a screening day, a screening time, a running time, the number of showings, whether screening will be performed, the version of operation software installed on the operation server 100, motion strength of the motion chair 130, whether a driving error has occurred in an attached device, a part in which a driving error has occurred, driving error code, a seating rate, and the operating state of the cinema server 140 or the advertising server 150, as an object to be stored in the database 230.
  • state information such as a content title, a screening day, a screening time, a running time, the number of showings, whether screening will be performed, the version of operation software installed on the operation server 100, motion strength of the motion chair 130, whether a driving error has occurred in an attached device, a part in which a driving error has occurred, driving error code, a seating rate, and the operating state of the cinema server 140 or the advertising server 150, as an object to be stored in the database 230.
  • the log data processing unit 220 may be configured to transmit a notification message to an administrator who manages a theater or the operation server 100 of the theater corresponding to the log data.
  • the central server 200 checks state information about each theater in real time or in a specific cycle. If error information is included in the state information, the central server 200 automatically notifies a corresponding operation server 100 or administrator of the error information so that a problem can be rapidly solved.
  • the database 230 means a medium in which the state information classified by the log data processing unit 220 from the log data has been stored. As will be described later, the database 230 may be configured to be accessible to the external user terminal 300 so that a user can easily check the current operating state of 4D theaters nationwide or all over the world.
  • the state information stored in the database 230 by the log data processing unit 220 may have a tree structure shown in FIG. 4. That is, when a user accesses the server according to an embodiment of the present invention through web browsing, first, the central server 200 provides a category menu for each continent in order to limit an area that may be monitored by the user. Next, the central server 200 enables the user to easily check a theater to be checked through entry processes, such as a country, a city, and a theater.
  • the central server 200 checks state information (e.g., whether a driving error has occurred in each of attached devices and a content organization schedule) stored in the database 230 with respect to the corresponding theater and provides the state information to the user terminal 300.
  • state information e.g., whether a driving error has occurred in each of attached devices and a content organization schedule
  • the central server 200 further includes the access management unit 240.
  • the access management unit 240 receives an access request from the external user terminal 300 and determines whether the user terminal 300 has access rights.
  • the central server 200 may further include the information providing unit 250.
  • the information providing unit 250 functions to provide state information, stored in the database 230, to the user terminal 300 having legitimate access rights.
  • the information providing unit 250 transfers state information about attached devices within each theater in such a way as to transmit or output a fixed web page to the user terminal 300. This is described later with reference to FIGS. 6 to 8.
  • the central server 200 may further include the control unit 260.
  • the control unit 260 functions to receive a control command from a user, that is, the subject who manages all of theaters, and to transmit the control command to one or more operation servers 100.
  • a user may input a control command, for example, a reboot command to the control unit 260 through the input device of the central server 200.
  • the control unit 260 may transmit the received control command to the operation server 100 of a corresponding theater, thereby being capable of rebooting the corresponding effect device 110.
  • a method for providing a theater monitoring service according to an embodiment of the present invention is described below with reference to FIG. 5.
  • log data including state information about the attached devices of each theater is received at step S510.
  • the subject who generates the log data is the operation server 100 of each theater, and the subject who receives the log data is the central server 200.
  • the state information included in the log data may be divided into various kinds depending on whether the subject who provides the state information is which attached device. For this, reference may be made to the description of FIG. 2.
  • the central server 200 extracts part of or the entire state information from the log data at step S520. Extracting the state information means a process for restoring, by the central server 200, the state information included in the log data when the operation server 100 generates the log data by decoding the received log data.
  • the central server 200 may selectively extract only some the state information without extracting the entire state information.
  • the items of the state information to be selected may be directly set by a user.
  • the central server 200 stores the extracted state information in the database 230 at step S530.
  • the database 230 may store the extracted state information in a tree structure, such as that of FIG. 4, in order to systematically provide the state information to a user who is externally accessed.
  • a data storage structure proposed with reference to FIG. 4 is only an example, and the present invention is not limited thereto.
  • the central server 200 may check whether error information is included in the stored state information at step S540. If, as a result of the check, error information is found to be included in the state information, the central server 200 may transmit a notification message to a theater or theater administrator corresponding to the log data at step S550.
  • the error information is state information indicative of whether a driving error has occurred in an attached device of a theater, indicative that the driving error has occurred in which part of a corresponding attached device, and indicative that which kind of driving error has occurred. If such error information is found, the central server 200 rapidly transfers a notification message indicative of the error information to a corresponding theater or theater administrator so that a problem can be early solved.
  • the state information remains stored in the database 230 without any special measures at step S560.
  • the central server 200 may receive an access request from the external user terminal 300 that attempts to use the collected information at step S570.
  • the user terminal 300 is not limited to a specific device if it is capable of transmitting and receiving data to and from the central server 200 over a network.
  • the user terminal 300 may include a PC, a tablet PC, a smart phone, and a PDA.
  • the central server 200 After receiving the access request, the central server 200 checks whether a corresponding user has legitimate access rights. If, as a result of the check, the corresponding user is found to have the legitimate access rights, the central server 200 provides the corresponding user with state information stored in the database 230 at step S580.
  • the access rights may be graded for each user, and provided state information may also be limited based on the grade. For example, a user who has access rights of a low grade may not be allowed to check state information about the advertising server 150 or may not be allowed to issue a direct control command for a specific attached device.
  • the central server 200 may receive a control command from the user terminal 300 at step S580 and transmit the control command to one or more of the operation servers 100 at step S590.
  • the central server 200 functions to receive a control command from the user terminal 300 and to transfer the control command to the operation server 100 of each theater.
  • control command may include a control command for any one of attached devices within any one theater, a control command for a plurality of theaters-related devices within any one theater, a control command for common attached devices within a plurality of theaters, and a control command for a plurality of attached devices within a plurality of theaters, and is not limited to a specific scope in which the control command may be transmitted.
  • state information pages displayed on the user terminal 300 are described below with reference to FIGS. 6 to 8.
  • FIG. 6 shows a state information page indicative of a list of countries in which 4D theaters have been installed, the number of theaters in each of the countries, and whether a driving error is present in each of the theaters.
  • the central server 200 When a user accesses the central server 200 using the user terminal 300, the central server 200 provides a state information page, such as that of FIG. 6, in response to a request from the user.
  • the state information page may be written in a web page form and provided in a fixed rule regardless of the specifications of the user terminal 300.
  • the state information page of FIG. 6 shows countries in which 4D theaters are now installed and operated, such as Bulgaria, Chile, China, and Columbia, in a list form. Furthermore, the state information page may be displayed in an intuitive form, for example, a bar form so that the number of theaters installed in each country can be easily known. FIG. 6 shows that 6 theaters operate in Mexico, 5 theaters operate in China, and other countries are displayed in a similar manner.
  • the state information page shows whether a driving error has occurred in a theater operating in each country so that the generation of a driving error can be easily checked. For example, green is indicated in a theater that normally operates without a special problem in attached devices, gray is indicated in a theater that does not now operate, and red is indicated in a theater that now operates, but has any driving error. Accordingly, a user can easily monitor the operating state of a plurality of theaters based on only the page.
  • FIG. 7 shows a detailed information page provided when a specific theater is selected in the state information page of FIG. 6.
  • the detailed information page shows information about the location of a corresponding theater (e.g., a continent, a country, a city, and an area), the operator name of a theater, a query date, a content title that is now screened or expected to be screened, and a running time.
  • information e.g., manufacturer information and a software version
  • the contact information of a corresponding theater administrator, etc. are further included in the detailed information page.
  • error information indicative of whether a driving error has occurred in each of attached devices and what type of driving error has occurred are included in the detailed information page in addition to the aforementioned information.
  • the effect devices 110 e.g., pieces of motion equipment
  • color is indicated in the driving state of each of the effect device 110, on the lower side of FIG. 7.
  • driving error code i.e., state code
  • the detailed information page may further include state information obtained from a detection sensor included in the motion chair 130, that is, a seating rate.
  • FIG. 8 shows an example in which the central server 200 provides a user with state information stored in the database 230 in a chart or graph form.
  • the central server 200 may process the state information in a chart or graph form according to a criterion and provide the processed information to a user.

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Abstract

The present invention relates to a system and method for providing a service for monitoring and controlling an overall situation of 4D theaters installed and operated in several places. More particularly, the present invention includes an operation server configured to collect state information about an effect device, motion chairs, and a cinema server included in a theater and a central server configured to receive log data including the state information from the operation server and to generally provide a user with state information about all of theaters.

Description

SYSTEM AND METHOD FOR PROVIDING THEATER MONITORING SERVICE
The present invention relates to a system and method for providing a service for monitoring and controlling an overall situation of 4D theaters installed and operated in several places. More particularly, the present invention includes an operation server configured to collect state information about an effect device, motion chairs, and a cinema server included in a theater and a central server configured to receive log data including the state information from the operation server and to generally provide a user with state information about all of theaters.
As movie content is recently diversified, the number of theaters, that is, a space in which the movie content can be viewed, is greatly increased. In particular, many theater operators greatly increase the number of 4D theaters, that is, theaters to which physical effects have been added further to 3D stereoscopic images.
A 4D theater is equipped with various attached devices in order to implement more various effects and a realistic content playback environment for audiences. In this case, the 4D theater is equipped with many attached devices, such as a cinema server for managing content played back in a theater, effect devices for providing various special effects, and motion chairs for providing stereoscopic motions to audiences. In managing a theater equipped with such complicated and various attached devices, there is a need to collect and record state information about each of the attached devices in real time, but in most of theaters, only individual maintenance and repair is performed without an integrated management system for such devices.
Recently, one theater service operator increasingly owns and manages a plurality of theaters. In particular, a movie business area is extended to foreign countries in addition to a specific country, and such 4D theaters continue to be installed in foreign countries. In such a condition, a theater service operator at one place needs to monitor the operating situation of all of 4D theaters nationwide or all over the world, but such a wide monitoring system has not yet been implemented.
An embodiment of the present invention relates to a system and method for monitoring an overall operating state of 4D theaters distributed widely as described above, in particular, a normal driving state of attached devices included in each theater. The present invention has been invented to satisfy the aforementioned technical needs and to provide additional elements which may not be easily invented by those skilled in the art.
An object of the present invention is to provide a theater monitoring system for enabling a user who manages a plurality of 4D theaters to monitor the real-time operating state of all the 4D theaters and a theater monitoring method using the system.
In particular, an object of the present invention is to enable a user at one place to easily check the operating state of all of theaters by collecting state information about various attached devices included in each theater in real time, generating log data having a single predetermined format and rule using the state information, and concentrating the log data onto a single central server.
Furthermore, an object of the present invention is to monitor the operating state of a plurality of theaters and to also issue a control command to each of attached devices included in each theater in addition to each theater.
A proposed theater monitoring system includes an operation server configured to receive state information from attached devices within a theater, generate log data based on the state information, and transmit the generated log data to a central server and the central server configured to receive the log data from the operation server, extract part of or the entire state information from the log data, and store the extracted state information in a database.
Furthermore, in the theater monitoring system, the attached device may include at least one of an effect device, a motion chair, a projection device, a cinema server, and an advertising server. In this case, the motion chair may include a seat sensor capable of detecting seating.
Furthermore, in the theater monitoring system, the log data may include a content title, a screening day, a screening time, a running time, the number of showings, or whether screening will be performed.
Furthermore, in the theater monitoring system, the log data may include a seating rate, motion strength, whether a driving error has occurred, a part in which the driving error has occurred, driving error code, or a normal driving rate.
Furthermore, in the theater monitoring system, the central server may receive a control command for controlling one or more of the attached devices within the theater from a user and transmit the control command to an operation server corresponding to the theater. In this case, the control command may include a reboot command for an attached device in which an error has occurred within the theater.
A central server according to an embodiment of the present invention includes a log data collection unit configured to receive log data including state information about attached devices within a theater from an operation server, a log data processing unit configured to extract part of or the entire state information from the log data and to store the extracted state information in a database, and the database configured to store the state information.
Furthermore, in the central server, the log data processing unit may transmit a notification message to a theater or theater administrator corresponding to the log data if error information is included in the log data.
Furthermore, the central server may further include an access management unit configured to receive an access request from a user terminal and to determine whether the user terminal has access rights and an information providing unit configured to provide the user terminal having legitimate access rights with the state information stored in the database.
Furthermore, the central server may further include a control unit configured to receive a control command from a user and to transmit the control command to one or more operation servers.
A method for providing a theater monitoring service according to an embodiment of the present invention includes receiving log data including state information about attached devices within a theater, extracting part of or the entire state information from the log data, and storing the state information in a database.
Furthermore, the method for providing a theater monitoring service may further include transmitting a notification message to a theater or theater administrator corresponding to the log data if error information is included in the log data.
Furthermore, the method for providing a theater monitoring service may further include receiving an access request from a user terminal, checking whether the user terminal has access rights, and providing the user terminal with the state information stored in the database if the user terminal has the access rights.
Furthermore, the method for providing a theater monitoring service may further include receiving a control command from a user terminal and transmitting the control command to one or more operation servers.
In accordance with an embodiment of the present invention, there is an advantage in that the subject who manages a plurality of theaters can easily check the real-time operating state of all the theaters.
In particular, in accordance with an embodiment of the present invention, state information about various attached devices included in each theater can be collected in real time, and log data of a predetermined format is generated and stored in a single central server. Accordingly, a user can monitor all of theaters more easily.
FIG. 1 shows a schematic configuration of a theater monitoring system according to an embodiment of the present invention.
FIG. 2 shows an example in which an operation server and attached devices have been installed in one 4D theater.
FIG. 3 is a block diagram showing the detailed elements of a central server according to an embodiment of the present invention.
FIG. 4 shows the tree structure state information constructed in a database
FIG. 5 is a flowchart illustrating a method for providing a theater monitoring service according to an embodiment of the present invention.
FIGS. 6 to 8 illustrate the state in which the theater monitoring system provides information to a user according to an embodiment of the present invention.
The details of the objects and technical configurations of the present invention and acting effects thereof will be more clearly understood from the following detailed description based on the accompanying drawings. Hereinafter, embodiments of the present invention are described in detail with reference to the accompanying drawings.
The embodiments disclosed in this specification should not be construed or used as limiting the scope of the present invention. It is evident to those skilled in the art that a description including the embodiments of this specification may have various applications. Accordingly, some embodiments described in the detailed description of the present invention are illustrative for better understanding, and the scope of the present invention is not intended to be restricted by the embodiments.
Functional blocks illustrated in the drawings and described hereunder are only examples of possible implementations. In other implementations, other functional blocks may be used without departing from the spirit and scope of the detailed description. Furthermore, one or more functional blocks of the present invention are illustrated as separate blocks, but one or more of the functional blocks of the present invention may be a combination of various hardware and software elements for executing the same function.
Furthermore, it should be understood that an expression that some elements are included is an expression of an open type and the expression simply denotes that the corresponding elements are present, but does not exclude additional elements.
Furthermore, when one element is described as being connected or coupled to the other element, it should be understood that one element may be directly connected or coupled to the other element, but a third element may be interposed between the two elements.
A theater monitoring system according to an embodiment of the present invention is schematically described below with reference to FIGS. 1 and 2.
As described above, the theater monitoring system according to an embodiment of the present invention is a system for monitoring 4D theaters installed in a wide area in a lump, and it includes an operation server 100 and a central server 200, that is, core elements. Furthermore, the system may further include a user terminal 300, such as a user PC and a user smart phone for accessing the central server 200 and checking state information about each of 4D theaters.
First, the operation server 100 is described below.
The operation server 100 is included in each theater and functions to manage attached devices installed in each theater. More specifically, the operation server 100 receives state information from attached devices, generates log data based on the state information, and transmits the generated log data to the central server 200.
In this case, the attached devices refer to a variety of types of devices for providing audiences with a screening service in each theater. FIG. 2 shows an example in which attached devices have been installed in a theater.
Referring to FIG. 2, each theater may include an effect device 110, a projection device 120, and a motion chair 130 in order to provide audiences with a content screening service, and may further include a cinema server 140 and an advertising server 150.
The effect device 110 is a device for providing audiences with 4D effects simultaneously with the playback of content. In this case, the effect device 110 may include a water spray device, a fog device, a bubble device, and a fan.
The projection device 120 refers to a device for projecting a content playback screen to a projection plane. An embodiment of the present invention is not limited to one projection device 130. The theater may include a plurality of projection planes installed to surround seats and a plurality of the projection devices 130 configured to project content onto the respective projection planes, thereby being capable of providing a more realistic content watching environment to audiences.
The motion chair 130 is an attached device for providing a motion to a seated audience in various directions. The motion chair 120 may be driven in various aspects, such as roll, pitch, yaw, heave, sway, and surge. Furthermore, the intensity of a movement of the motion chair can also be controlled.
Furthermore, as will be described later, the motion chair 130 may further include a seat sensor capable of detecting whether an audience has been seated in the motion chair. The seat sensor may be configured to detect an audience's weight applied to the motion chair 130 using a pressure sensor installed in the lower seat plane of the motion chair 130 or the back of the chair or may be configured to detect whether an audience has been seated in the motion chair 130 using a laser radiation device and a laser reception device installed elbow chairs on both sides of the motion chair 130.
The cinema server 140 is a device for receiving external cinema content data and playing back the received cinema content data. The cinema server 140 plays back cinema content data according to a predetermined organization schedule a specific theater for a specific time at a specific point of time. Such an organization schedule is not made out by an operating subject who provides a screening service, but is made out by the subject who provides content. The organization schedule may not be randomly changed and modified, and cinema content is played back according to a predetermined organization schedule. Accordingly, an operating subject who provides a screening service, that is, a user according to an embodiment of the present invention, may need to continue to check whether a normal screening environment is maintained during the playback time of cinema content by monitoring a screening environment in real time with respect to a specific theater in which cinema content is played back.
The advertising server 150 means a device for receiving advertising content data from an external server, for example, a server managed by an advertiser and playing back the advertising content data. In general, the advertising content data is played back before cinema content is actually screened or after the screening of cinema content is terminated. The advertising content is also played back according to a predetermined organization schedule. Unlike in the cinema content, the contents of the advertising content, for example, advertising subtitles, some advertising screen, and an advertising playback time may be changed and modified.
Referring to FIG. 2, a variety of attached devices which may be included in one theater, such as that described above, is connected to one operation server 100 over wired and/or wireless networks. Each of the attached devices transfers its state information to the operation server 100 in real time or in a specific cycle.
The log data means that the contents of the state information have been recorded over time. In particular, in an embodiment of the present invention, the log data is generated in the form of a single unified standard. Such log data is used as a source from which the central server 200 extracts state information. If an error occurs in attached devices within each theater, the log data helps with giving a control command for a corresponding attached device. In particular, the log data is usefully used to find the cause of a corresponding error that has occurred.
The operation server 100 may include a variety of pieces of information in log data based on state information received from each attached device.
For example, when state information is received from the cinema server 140, log data generated by the operation server 100 may include a title, a screening day, a screening time, a running time, the number of showings of cinema content and/or whether screening will be performed.
Furthermore, when state information is received from the advertising server 150, the log data may include the title, advertiser, screening time, running time and/or the number of showings of advertising content and/or whether the screening of the advertising content will be performed.
For another example, when state information is received from the effect device 110, the motion chair 130, the projection device 120, etc., log data may include pieces of information capable of checking whether an error has occurred in a device and the contents of an error generated in a device, such as whether a driving error has occurred, a part in which a driving error has occurred, driving error code, or a normal driving rate.
Whether a driving error has occurred, a part in which a driving error has occurred, and driving error code are pieces of information indicative of whether there is a part that belongs to various parts forming each device and that has an error, that an error has occurred in which part if the error has occurred, and that which error has occurred in a corresponding part, respectively. The pieces of information are included in one log data and transmitted to the central server 200. The central server 200 provides such information to a user.
Log data generated based on the state information of the motion chair 130 may further include a seating rate or motion strength information. The seating rate is indicative of the percentage of the motion chairs 130 in which audiences have been seated in a theater. A prerequisite is that state information is received from all of the motion chairs 130 within the theater. Furthermore, the motion strength is indicative of the strength of the motion chair 130 that now moves in association with cinema content in a numerical form.
The operation server 100 generates log data using such a method and transmits the log data to the central server 200. In this case, the log data is transmitted from the operation server 100 to the central server 200 through the Internet.
As may be seen from FIG. 1, in general, one 4D theater is equipped with one operation server 100. The operation servers 100 of 4D theaters installed in respective areas, for example, the operation servers 100 (e.g., 100a, 100b, 100c, ...) installed in a theater in New York of U.S.A., a theater in Wangsimni of Korea, and a theater in Tokyo of Japan transmit log data to the central server 200 in real time or in a predetermined cycle.
The central server 200 according to an embodiment of the present invention is described below with reference to FIGS. 1 and 3.
Referring to FIG. 1, the central server 200 functions to receive log data from the plurality of operation servers 100, to extract part of or the entire state information from the received log data, and to store the extracted state information in a database 230.
That is, the central server 200 refers to a device for collecting data (or log data) capable of checking the internal operating state of theaters from the theaters installed nationwide or all over the world and comprehensively managing the data. In this case, the operating state of a plurality of theaters installed in a wide area can be managed in one device.
The central server 200 according to an embodiment of the present invention is not limited to only the function for receiving log data from the operation servers 100. The central server 200 may receive a control command capable of controlling each of theaters, more precisely, attached devices included in each theater from a user, and may transmit the control command to the operation server 100. That is, the theater monitoring system according to an embodiment of the present invention includes a state information report system from the operation servers 100 to the central server 200 and a control command transfer system from the central server 200 to each of the operation servers 100, thereby enabling a user to perform interactive communication.
Referring to FIG. 3, the central server 200 according to an embodiment of the present invention includes a log data collection unit 210, a log data processing unit 220, a database 230, an access management unit 240, an information providing unit 250, and a control unit 260.
The log data collection unit 210 receives log data, including state information about attached devices included in each theater, from each of the plurality of operation servers 100. In this case, the log data corresponds to a specific theater or a specific operation server 100 and includes an identifier for identifying the theater or the operation server 100. A theater name or theater unique code may be used as the identifier.
The log data processing unit 220 extracts part of or the entire state information from the received log data and stores the extracted state information in the database 230.
The log data processing unit 220 restores the state information by decoding the log data received from the operation server 100, and classifies the restored state information into state information that needs to be stored in the database 230 and state information that does not need to be stored in the database 230. In this case, a criterion for the classification may be freely changed by a user who operates the central server 200. For example, a user may set state information, such as a content title, a screening day, a screening time, a running time, the number of showings, whether screening will be performed, the version of operation software installed on the operation server 100, motion strength of the motion chair 130, whether a driving error has occurred in an attached device, a part in which a driving error has occurred, driving error code, a seating rate, and the operating state of the cinema server 140 or the advertising server 150, as an object to be stored in the database 230.
If error information, that is, information, such as the occurrence of a driving error in a corresponding attached device, a part in which a driving error has occurred, or driving error code, is included in log data, the log data processing unit 220 may be configured to transmit a notification message to an administrator who manages a theater or the operation server 100 of the theater corresponding to the log data.
The central server 200 checks state information about each theater in real time or in a specific cycle. If error information is included in the state information, the central server 200 automatically notifies a corresponding operation server 100 or administrator of the error information so that a problem can be rapidly solved.
The database 230 means a medium in which the state information classified by the log data processing unit 220 from the log data has been stored. As will be described later, the database 230 may be configured to be accessible to the external user terminal 300 so that a user can easily check the current operating state of 4D theaters nationwide or all over the world.
The state information stored in the database 230 by the log data processing unit 220 may have a tree structure shown in FIG. 4. That is, when a user accesses the server according to an embodiment of the present invention through web browsing, first, the central server 200 provides a category menu for each continent in order to limit an area that may be monitored by the user. Next, the central server 200 enables the user to easily check a theater to be checked through entry processes, such as a country, a city, and a theater.
Furthermore, when a theater to be checked is selected, the central server 200 checks state information (e.g., whether a driving error has occurred in each of attached devices and a content organization schedule) stored in the database 230 with respect to the corresponding theater and provides the state information to the user terminal 300.
The central server 200 according to an embodiment of the present invention further includes the access management unit 240.
The access management unit 240 receives an access request from the external user terminal 300 and determines whether the user terminal 300 has access rights.
Furthermore, the central server 200 may further include the information providing unit 250. The information providing unit 250 functions to provide state information, stored in the database 230, to the user terminal 300 having legitimate access rights. The information providing unit 250 transfers state information about attached devices within each theater in such a way as to transmit or output a fixed web page to the user terminal 300. This is described later with reference to FIGS. 6 to 8.
The central server 200 according to an embodiment of the present invention may further include the control unit 260.
The control unit 260 functions to receive a control command from a user, that is, the subject who manages all of theaters, and to transmit the control command to one or more operation servers 100.
For example, if, as the results of the monitoring of the state information of each theater, an error is found to have occurred in an effect device 110 of a specific theater, a user may input a control command, for example, a reboot command to the control unit 260 through the input device of the central server 200. The control unit 260 may transmit the received control command to the operation server 100 of a corresponding theater, thereby being capable of rebooting the corresponding effect device 110.
A method for providing a theater monitoring service according to an embodiment of the present invention is described below with reference to FIG. 5.
Referring to FIG. 5, in the method for providing a theater monitoring service, first, log data including state information about the attached devices of each theater is received at step S510. In this case, the subject who generates the log data is the operation server 100 of each theater, and the subject who receives the log data is the central server 200. Furthermore, the state information included in the log data may be divided into various kinds depending on whether the subject who provides the state information is which attached device. For this, reference may be made to the description of FIG. 2.
After the log data is received, the central server 200 extracts part of or the entire state information from the log data at step S520. Extracting the state information means a process for restoring, by the central server 200, the state information included in the log data when the operation server 100 generates the log data by decoding the received log data.
Furthermore, in this case, the central server 200 may selectively extract only some the state information without extracting the entire state information. In this case, the items of the state information to be selected may be directly set by a user.
The central server 200 stores the extracted state information in the database 230 at step S530. As described above, the database 230 may store the extracted state information in a tree structure, such as that of FIG. 4, in order to systematically provide the state information to a user who is externally accessed. A data storage structure proposed with reference to FIG. 4 is only an example, and the present invention is not limited thereto.
After the extracted state information is stored in the database 230, the central server 200 may check whether error information is included in the stored state information at step S540. If, as a result of the check, error information is found to be included in the state information, the central server 200 may transmit a notification message to a theater or theater administrator corresponding to the log data at step S550.
The error information is state information indicative of whether a driving error has occurred in an attached device of a theater, indicative that the driving error has occurred in which part of a corresponding attached device, and indicative that which kind of driving error has occurred. If such error information is found, the central server 200 rapidly transfers a notification message indicative of the error information to a corresponding theater or theater administrator so that a problem can be early solved.
If, as a result of the check, error information is found to be not included in the state information, the state information remains stored in the database 230 without any special measures at step S560.
After the state information about each theater is systematically stored in the database 230, the central server 200 may receive an access request from the external user terminal 300 that attempts to use the collected information at step S570.
In this case, the user terminal 300 is not limited to a specific device if it is capable of transmitting and receiving data to and from the central server 200 over a network. For example, the user terminal 300 may include a PC, a tablet PC, a smart phone, and a PDA.
After receiving the access request, the central server 200 checks whether a corresponding user has legitimate access rights. If, as a result of the check, the corresponding user is found to have the legitimate access rights, the central server 200 provides the corresponding user with state information stored in the database 230 at step S580.
In this case, the access rights may be graded for each user, and provided state information may also be limited based on the grade. For example, a user who has access rights of a low grade may not be allowed to check state information about the advertising server 150 or may not be allowed to issue a direct control command for a specific attached device.
The central server 200 may receive a control command from the user terminal 300 at step S580 and transmit the control command to one or more of the operation servers 100 at step S590.
After checking current state information about each theater, a user may transfer a command for controlling attached devices of each theater, if necessary. In order to meet such a need, the central server 200 functions to receive a control command from the user terminal 300 and to transfer the control command to the operation server 100 of each theater.
In this case, the control command may include a control command for any one of attached devices within any one theater, a control command for a plurality of theaters-related devices within any one theater, a control command for common attached devices within a plurality of theaters, and a control command for a plurality of attached devices within a plurality of theaters, and is not limited to a specific scope in which the control command may be transmitted.
Examples of state information actually provided to a user, more precisely, state information pages displayed on the user terminal 300 are described below with reference to FIGS. 6 to 8.
FIG. 6 shows a state information page indicative of a list of countries in which 4D theaters have been installed, the number of theaters in each of the countries, and whether a driving error is present in each of the theaters.
When a user accesses the central server 200 using the user terminal 300, the central server 200 provides a state information page, such as that of FIG. 6, in response to a request from the user. The state information page may be written in a web page form and provided in a fixed rule regardless of the specifications of the user terminal 300.
The state information page of FIG. 6 shows countries in which 4D theaters are now installed and operated, such as Bulgaria, Chile, China, and Columbia, in a list form. Furthermore, the state information page may be displayed in an intuitive form, for example, a bar form so that the number of theaters installed in each country can be easily known. FIG. 6 shows that 6 theaters operate in Mexico, 5 theaters operate in China, and other countries are displayed in a similar manner.
Furthermore, the state information page shows whether a driving error has occurred in a theater operating in each country so that the generation of a driving error can be easily checked. For example, green is indicated in a theater that normally operates without a special problem in attached devices, gray is indicated in a theater that does not now operate, and red is indicated in a theater that now operates, but has any driving error. Accordingly, a user can easily monitor the operating state of a plurality of theaters based on only the page.
FIG. 7 shows a detailed information page provided when a specific theater is selected in the state information page of FIG. 6.
Referring to FIG. 7, the detailed information page shows information about the location of a corresponding theater (e.g., a continent, a country, a city, and an area), the operator name of a theater, a query date, a content title that is now screened or expected to be screened, and a running time. In addition, information (e.g., manufacturer information and a software version) about each attached device, the contact information of a corresponding theater administrator, etc. are further included in the detailed information page.
From FIG. 7, it may also be seen that error information indicative of whether a driving error has occurred in each of attached devices and what type of driving error has occurred are included in the detailed information page in addition to the aforementioned information. The effect devices 110 (e.g., pieces of motion equipment) are listed in a serial number and color is indicated in the driving state of each of the effect device 110, on the lower side of FIG. 7. Furthermore, driving error code (i.e., state code) is included in the detailed information page so that a user can check the driving state of attached devices included in a corresponding theater.
Furthermore, although not shown in FIG. 7, the detailed information page may further include state information obtained from a detection sensor included in the motion chair 130, that is, a seating rate.
FIG. 8 shows an example in which the central server 200 provides a user with state information stored in the database 230 in a chart or graph form.
As one of methods for easily providing a user with various state information and massive state information about a plurality of theaters, the central server 200 according to an embodiment of the present invention, more specifically, the information providing unit 250 may process the state information in a chart or graph form according to a criterion and provide the processed information to a user.
Although some embodiments and application examples of the present invention have been illustrated and described above, the present invention is not limited to the aforementioned specific embodiments and application examples and may be modified in various ways by those skilled in the art to which the present invention pertains without departing from the gist of the present invention written in the claims. Such modified embodiments should not be construed as being distinct from the technical spirit or prospect of the present invention.

Claims (15)

  1. A theater monitoring system, comprising:
    an operation server configured to receive state information from attached devices within a theater, generate log data based on the state information, and transmit the generated log data to a central server; and
    the central server configured to receive the log data from the operation server, extract part of or the entire state information from the log data, and store the extracted state information in a database.
  2. The theater monitoring system of claim 1, wherein the attached device comprises at least one of an effect device, a motion chair, a projection device, a cinema server, and an advertising server.
  3. The theater monitoring system of claim 2, wherein the motion chair comprises a seat sensor capable of detecting seating.
  4. The theater monitoring system of claim 1, wherein the log data comprises a content title, a screening day, a screening time, a running time, a number of showings, or whether screening is to be performed.
  5. The theater monitoring system of claim 1, wherein the log data comprises a seating rate, motion strength, whether a driving error has occurred, a part in which a driving error has occurred, driving error code, or a normal driving rate.
  6. The theater monitoring system of claim 1, wherein the central server receives a control command for controlling one or more of the attached devices within the theater from a user and transmits the control command to an operation server corresponding to the theater.
  7. The theater monitoring system of claim 6, wherein the control command comprises a reboot command for an attached device in which an error has occurred within the theater.
  8. A central server, comprising:
    a log data collection unit configured to receive log data comprising state information about attached devices within a theater from an operation server;
    a log data processing unit configured to extract part of or the entire state information from the log data and to store the extracted state information in a database; and
    the database configured to store the state information.
  9. The central server of claim 8, wherein the log data processing unit transmits a notification message to a theater or theater administrator corresponding to the log data if error information is included in the log data.
  10. The central server of claim 8, further comprising:
    an access management unit configured to receive an access request from a user terminal and to determine whether the user terminal has access rights; and
    an information providing unit configured to provide the user terminal having legitimate access rights with the state information stored in the database.
  11. The central server of claim 8, further comprising a control unit configured to receive a control command from a user and to transmit the control command to one or more operation servers.
  12. A method for providing a theater monitoring service, comprising:
    receiving log data comprising state information about attached devices within a theater;
    extracting part of or the entire state information from the log data; and
    storing the state information in a database.
  13. The method of claim 12, further comprising transmitting a notification message to a theater or theater administrator corresponding to the log data if error information is included in the log data.
  14. The method of claim 12, further comprising:
    receiving an access request from a user terminal,
    checking whether the user terminal has access rights; and
    providing the user terminal with the state information stored in the database if the user terminal has the access rights.
  15. The method of claim 12, further comprising:
    receiving a control command from a user terminal; and
    transmitting the control command to one or more operation servers.
PCT/KR2016/004564 2015-04-29 2016-04-29 System and method for providing theater monitoring service WO2016175621A1 (en)

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Citations (5)

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KR20090035930A (en) * 2007-10-08 2009-04-13 (주)동영디엔에스 Digital theater management system
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KR20120105788A (en) * 2011-03-16 2012-09-26 주식회사 레드로버 Control system for 4 dimension effect

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Publication number Priority date Publication date Assignee Title
JP2006514762A (en) * 2002-12-20 2006-05-11 シネキャスト・リミテッド・ライアビリティ・カンパニー Communication system, equipment state determination system, alarm system, recording system, and reporting system
KR20070003518A (en) * 2005-06-30 2007-01-05 김유식 System and method for transmitting contents for digital theater
KR20090035930A (en) * 2007-10-08 2009-04-13 (주)동영디엔에스 Digital theater management system
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