Light emitting device for random performance directing in performance place and control apparatus for controlling the same

Abstract

To provide a light emitting device for random performance directing in a performance place.SOLUTION: A light emitting device includes: a communication unit that communicates with a device equipped with a communication module; a light emitting unit that performs a light emitting operation for support using one or more light emitting elements; a memory; and a control unit. The control unit can randomly direct a light emitting operation by executing a random function according to a trigger command of a control device when the random function for randomly directing the light emitting operation of the light emitting unit within a prescribed range is stored in the memory in advance, and randomly direct the light emitting operation by receiving and executing the random function from the control device when the random function is not stored in the memory in advance. Performance directing in a performance place can be more effectively performed with the light emitting device.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a performance production technique, and more particularly, to a light emitting device and a control device for controlling the same for random performance production in a performance venue. [Background technology]

[0002] The following description is merely intended to provide background information related to the present embodiment and may not constitute prior art.

[0003] Generally, a light emitting device (or lighting device) can refer to a device that reflects, refracts, and transmits light from a light source to achieve the purpose of illumination. Light emitting devices can be classified into indirect light emitting devices, semi-indirect light emitting devices, general diffuse light emitting devices, semi-direct light emitting devices, and direct light emitting devices according to light distribution.

[0004] As technology advances, light-emitting devices are being used for a variety of purposes. For example, light-emitting devices can be installed on the exterior walls of buildings to create a media facade that realizes media functions. For another example, light-emitting devices can be used as portable cheering props at sporting events, concerts, and other performance venues where the illuminance level is below a certain level.

[0005] A master device that comprehensively controls the lighting devices installed in a performance venue transmits control signals for performance production to the lighting devices using a broadcast method, but in large performance venues, communication overload can cause restrictions on performance production.

[0006] So a way to improve this is needed. Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been made in consideration of the above circumstances, and its purpose is to provide a method for performing integrated performance direction using a master device, eliminating the constraints caused by communication overload, and at the same time, performing a variety of cheering and performance direction using light-emitting devices arranged in the performance venue.

[0008] Another object of the present invention is to provide an effective performance production without directly controlling the light emitting devices according to identification information mapped to the devices or groups.

[0009] It is yet another object of the present invention to provide a lighting device that performs an autonomous performance using a pre-stored random function.

[0010] The problems to be solved by the present disclosure are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0011] According to one embodiment of the present disclosure, a lighting device for random performance production at a performance venue may include a communication unit that communicates with a device equipped with a communication module, a lighting unit that performs lighting operations for cheering using one or more light-emitting elements, a memory, and a control unit.

[0012] When a random function for randomly directing the light-emitting operation of the light-emitting unit within a predetermined range is pre-stored in the memory, the control unit can execute the random function in accordance with a trigger command from a control device to randomly direct the light-emitting operation.

[0013] When the random function is not pre-stored in the memory, the control unit may receive the random function from the control device and execute the random function to randomly produce the light-emitting operation.

[0014] The control unit can randomly produce at least one of a light emission color, a light emission pattern, and a light emission intensity within a predetermined range based on the random function.

[0015] Here, group allocation information for group-specific performance production may not be stored in the memory.

[0016] In some embodiments, the random function may select two or more luminous colors from among the luminous colors that the light emitting device can output, and then randomly produce luminous colors only within the selected luminous colors.

[0017] In some embodiments, the random function can set the luminous intensity to a specific value at a given time, or can vary it gradually over time.

[0018] In some embodiments, group assignment information for group-specific performance production may be stored in the memory.

[0019] In some embodiments, the control unit selectively receives a control command corresponding to the group assignment information from among control commands for controlling lighting by group broadcast within the performance venue via the communication unit, and can reflect the control command corresponding to the group assignment information when randomly directing the lighting operation.

[0020] A control device for communicating with one or more lighting devices for random performance production in a performance venue according to one embodiment of the present disclosure may include a communication module and a control module.

[0021] When a random function for randomly directing the light-emitting operation of the light-emitting device within a predetermined range is pre-stored in the light-emitting device, the control module can provide a trigger command to the light-emitting device via the communication module for executing the random function during a performance.

[0022] In some embodiments, the control module can provide the random function to the lighting device using the communication module if the random function is not pre-stored in the lighting device.

[0023] The random function can randomly produce at least one of the light emission color, light emission pattern, and light emission intensity of the light emitting device within a predetermined range.

[0024] In some embodiments, the random function may select two or more light colors from among the light colors that the light emitting device can output, and then randomly produce light colors only within the selected light colors, or may set the light intensity to a specific value for a predetermined time, or may gradually change the light intensity for a predetermined time.

[0025] In some embodiments, when group assignment information for group-specific performance production is stored in the light-emitting device, the control module can broadcast control commands for group-specific light-emitting control within the performance venue via the communication module.

[0026] In addition, a computer program stored on a computer-readable recording medium for causing a computer to execute a method for implementing the present disclosure may also be provided.

[0027] In addition, a computer-readable recording medium having a computer program for executing the method for embodying the present disclosure may be further provided. Effect of the Invention

[0028] By providing a lighting device for random performance production at a performance venue and a control device for controlling the same according to the present disclosure, the performance can be produced in an integrated manner by the master device while eliminating constraints caused by communication overload, reducing the burden on the performance production and enabling effective performance production.

[0029] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. [Brief description of the drawings]

[0030] [Figure 1] 1 is a diagram showing an outline of the configuration of a light emission control system for directing a performance at a performance venue according to the present disclosure. [Diagram 2] 1A to 1C are diagrams illustrating examples of shapes of light-emitting devices according to the present disclosure. [Diagram 3] FIG. 2 is a relative block diagram showing the configuration of a light emitting device and a control device according to the present disclosure. [Figure 4] 11 is a sequence diagram illustrating an embodiment in which a random function according to the present disclosure is stored in a light emitting device. FIG. [Diagram 5] FIG. 13 is a sequence diagram illustrating an embodiment in which a random function according to the present disclosure is not stored in a light-emitting device. [Figure 6] 13 is a diagram illustrating a random function for randomly directing a light-emitting operation according to the present disclosure. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] The same reference numerals refer to the same components throughout this disclosure. This disclosure does not describe all the components of the embodiments, and general content in the technical field to which this disclosure belongs or overlapping content in the embodiments is omitted. The term "part, module, member, block" used in the specification can be realized as software or hardware, and depending on the embodiment, multiple "parts, modules, members, blocks" can be realized as one component, or one "part, module, member, block" can include multiple components.

[0032] Throughout the specification, when a part is said to be "connected" to another part, this includes not only a direct connection but also an indirect connection, including a connection via a wireless communication network.

[0033] Furthermore, when a part is described as "comprising" a certain component, this does not mean that other components are excluded, unless specifically stated to the contrary, but rather that the part may further include other components.

[0034] Throughout this specification, when an element is referred to as being "on" another element, this includes not only when the element is in contact with the other element, but also when there is another element between the two elements.

[0035] The terms "first", "second", etc. are used to distinguish one component from another component, and the components are not limited to the terms described above.

[0036] The singular expression includes the plural expression unless the context clearly indicates otherwise.

[0037] Identifying numbers are used in each step for convenience of description, and do not dictate the order of each step, and each step may be performed in a different order than stated, unless the context clearly dictates a particular order.

[0038] Hereinafter, the working principle and embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0039] The "control device for random performance production at a performance venue according to the present disclosure" in this specification can be realized not only as a cloud system but also as various devices that can perform calculations and provide results to users. For example, the control device for random performance production at a performance venue according to the present disclosure can include all of a computer, a server device, and a portable terminal, or can be in any one form.

[0040] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0041] FIG. 1 is a diagram for explaining a light-emitting control system 1000 for producing a performance at a performance venue according to the present disclosure, and FIG. 2 is a diagram showing an example of the shape of a light-emitting device 100 according to the present disclosure.

[0042] 1, a light-emitting control system 1000 according to the present disclosure may include a control device 200 and light-emitting devices (100A, 100B, ..., 100N, hereinafter referred to as "100") for cheering. The light-emitting control system 1000 may produce various types of light-emitting patterns for performance production such as cheering in the audience seats of a performance venue by controlling the light-emitting states of the light-emitting devices 100 using the control device 200.

[0043] The control device 200 can perform a function of controlling the light emitting device 100 for performance production in a performance hall. The control device 200 can be connected to a central control device and can be configured as an included part of the central control device. In addition, the control device 200 can receive a signal from the central control device and operate in synchronization with the sound device, lighting device, etc. in the performance hall, thereby synchronizing the light emitting device 100 with the sound device and lighting device to automatically perform a performance.

[0044] The control device 200 may include various electronic devices including a mobile phone, a smart phone, a laptop computer, and the like, and may include various electronic devices including an MA Lighting grandMA2, and the like. The control device 200 may include a simulator for producing lighting effects. The simulator may include various electronic devices for realizing a virtual simulation for realizing lighting effects. The simulator may store various scenarios in a predetermined state or may be input by a user.

[0045] The control device 200 may also include appropriate software or computer programs that enable control of the lighting device 100. For example, the control device 200 may include exemplary protocols for controlling the lighting device 100, such as DMX512, RDM, Art-Net, sACN, ETC-Net2, Pathport, Shownet, or KiNET.

[0046] The control device 200 may further include an antenna for emitting a light emission control signal. The control device 200 may further include a database in which at least one sound source and light emission control information mapped to each of the at least one sound source according to the present disclosure are stored.

[0047] The control device 200 may include a master device. The master device may be provided for efficient signal transmission in a performance venue. The master device may include a database DB. The master device may include information from the database DB in a control signal and provide it to a transmitter, or may provide it directly to the light emitting device 100.

[0048] The light emitting device 100 can perform a function of producing various types of light emitting patterns in real time or according to predetermined control information by the control device 200. In the embodiment, the light emitting device 100 can include or be connected to a light emitting element such as a liquid crystal display (LCD) or a light emitting diode (LED).

[0049] FIG. 2 shows an exemplary shape of a light emitting device 100 according to the present disclosure.

[0050] 2, the light emitting device 100 may be implemented in a form that can be worn on a body part (for example, a wrist) (100C, 100D), or in a form that can be held by a user who is cheering (100E).

[0051] The light emitting device 100 may be a device including any electronic device capable of wireless communication, and may be a small cheering item carried by spectators at a performance venue such as a sports stadium or a concert, etc. For example, the light emitting device 100 may be a mobile phone, a wireless light emitting device, a lighting stick, a lighting bar, a lighting ball, a lighting panel, or an appliance equipped with a wirelessly controllable light source.

[0052] The performance venue in which the light emitting device 100 is arranged is a place for performing arts such as sports events or concerts, and may be composed of, for example, a stage, stadium, spectator seats, etc. In addition, the performance venue may be equipped with various devices (e.g., sound equipment, lighting equipment, etc.) required for the performance, and may be equipped with a central control device including a control console that can adjust and control the operation of such devices.

[0053] FIG. 3 is a relative block diagram showing the configurations of the light emitting device 100 and the control device 200 according to the present disclosure.

[0054] 3, the light emitting device 100 can be used for random performance production in a performance venue and can include a communication unit 110, a light emitting unit 120, a memory 150, and a control unit 190. The components of the light emitting device 100 shown in FIG. 3 are not essential for realizing the light emitting device 100 according to the present disclosure, and the light emitting device 100 described herein may have more or less components than those listed above.

[0055] Among the above components, the communication unit 110 can communicate with various devices equipped with a communication module. The communication unit 110 can include at least one of a broadcast receiving module, a wired communication unit, a wireless communication unit, a short-range communication module, and a location information module. That is, the communication unit 110 can communicate with external devices via a wired or wireless connection.

[0056] The light emitting unit 120 may perform a light emitting operation for cheering using one or more light emitting elements.

[0057] The memory 150 may store a random function RA. The memory 150 may store data supporting various functions of the light emitting device 100 and a program for the operation of the processor, may store input / output data (e.g., music files, still images, videos, etc.), may store a number of application programs (or applications) operated by the light emitting device 100, and may store data and commands for the operation of the server. At least some of the application programs may be downloaded from an external server via wireless communication. The memory 150 may store one or more instructions and may include a variety of deep learning-based models.

[0058] When a random function RA for randomly directing the light-emitting operation of the light-emitting unit 120 within a predetermined range is pre-stored in the memory 150, the control unit 190 can execute the random function RA in accordance with a trigger command from the control device 200 to randomly direct the light-emitting operation.

[0059] In an embodiment, the control unit 190 can execute the random function RA when there is no direct control command and no reserved control command (except for execution of the random function) from the control device 200 for a predetermined time (i.e., when a predetermined time has passed without being controlled by the control device 200). The random function RA can randomly produce and output at least one of the light emission color, the light emission pattern, and / or the light emission intensity within its own constraint condition (e.g., within a predetermined range).

[0060] Here, the random function RA can control the light emitting unit 120 to perform light emitting operation randomly within certain constraint conditions rather than the light emitting device 100 performing light emitting operation completely randomly. Depending on the implementation example, the light emitting unit 120 can also perform light emitting operation completely randomly.

[0061] If the random function RA is not pre-stored in the memory 150, the control unit 190 may receive and execute the random function RA from the control device 200 to randomly perform a light-emitting operation. For example, the control device 200 may provide the random function RA to the light-emitting device 100 during a performance.

[0062] At this time, in order to prevent communication overload, the control unit 190 can sequentially include control patterns of light-emitting operation parameters such as light color, light pattern, and light intensity in a random function RA and provide them to the light-emitting device 100, rather than in the form of a function / procedure, but the embodiment is not limited to this.

[0063] In the embodiment, the control unit 190 may randomly produce at least one of the light emission color, the light emission pattern, and the light emission intensity within a predetermined range based on the random function RA.

[0064] The memory 150 of the light emitting device 100 may be configured not to store group allocation information for performance production by group.

[0065] In this case, the random function RA can randomly produce at least one of the light color, the light pattern, and the light intensity within a predetermined range. Here, the predetermined range can mean that a predetermined limiting condition is set for at least one of the light color, the light pattern, and the light intensity. Some examples will be described below, but the present disclosure is not limited thereto.

[0066] In the embodiment, the random function RA may select two or more luminous colors from among the luminous colors that the light emitting device 100 can output, and then randomly produce luminous colors only among the selected luminous colors. In this case, the light emitting device 100 may randomly produce various luminous patterns (time, cycle, pattern, sequence, blinking, etc.) and / or luminous intensities (maximum, minimum, gradual increase, gradual decrease, blinking, etc.) other than the luminous colors. In this case, restrictions may also be set on some of the luminous patterns and / or luminous intensities.

[0067] In an embodiment, the random function RA may set the light intensity to a specific value at a predetermined time or may change it gradually over a predetermined time. In an embodiment, the light emitting device 100 may recognize a sound and output a light intensity according to the pitch and / or duration of the recognized sound, but the present disclosure is not limited thereto.

[0068] In an embodiment, group allocation information for performance direction by group can also be stored in the memory 150 .

[0069] At this time, the control unit 190 can selectively receive, via the communication unit 110, a control command corresponding to the group allocation information among control commands for controlling light emission by group broadcast within the concert hall.

[0070] Furthermore, the control unit 190 can reflect a control command corresponding to the group allocation information when randomly directing a light-emitting action. For example, when the control unit 190 receives a group control command from the control device 200 while randomly directing a light-emitting action, the control unit 190 can reflect the received group control command in the random directing. In an embodiment, the control unit 190 can prioritize group control commands or random control commands and follow group control or random directing control according to the set priority, and the priority can be changed by the control device 200.

[0071] As described above, the control device 200 can be implemented in various ways. The control device 200 can include a communication module 210, a storage module 250, and a control module 290. The components of the control device 200 shown in FIG. 3 are not essential to implementing the control device 200 according to the present disclosure, and therefore the control device 200 described herein may have more or less components than those listed above.

[0072] The control device 200 can communicate with one or more light emitting devices 100 for random performance production in a performance venue via the communication module 210. The communication module 210 can communicate with various devices equipped with a communication module. The communication module 210 can include at least one of a broadcast receiving module, a wired communication unit, a wireless communication unit, a short-range communication module, and a location information module. That is, the communication module 210 can communicate with an external device based on a wired or wireless connection.

[0073] The control device 200 can store various information in the storage module 250 under the control of the control module 290. The control module 290 can be configured to include a memory, a cache, a buffer, etc., but the embodiment is not limited thereto.

[0074] The storage module 250 can store data supporting various functions of the control device 200 and programs for the operation of the processor, can store input and output data (e.g., music files, still images, videos, etc.), and can store a number of application programs (or applications) run by the control device 200, and data and commands for the operation of the server. At least some of these application programs can be downloaded from an external server via wireless communication. The storage module 250 can store one or more instructions and can include a variety of deep learning-based models.

[0075] The control device 200 may further include a display in addition to the above-mentioned configuration. The display displays (outputs) information processed by the control device 200. For example, the display may display execution screen information of an application program (as an example, an application) run by the control device 200, or UI (User Interface) or GUI (Graphic User Interface) information based on such execution screen information.

[0076] The control module 290 may include a component for recognizing the light output of the seats in the performance venue and may output the light output status to the display according to the recognized light output. In addition, the control module 290 may use the light output recognition module to determine whether the group control of the control device 200 is reflected.

[0077] The control module 290 generates a performance scene using the light emitting devices 100 for cheering during the performance at the concert hall, and allows the light emitting devices 100 to operate randomly within a predetermined range rather than in a centrally controlled manner. This allows for more effective communication in areas crowded with communication devices, resulting in a concentration effect on the performance.

[0078] If a random function for randomly directing the light-emitting operation of the light-emitting device 100 within a predetermined range is pre-stored in the light-emitting device 100, the control module 290 can provide a trigger command to the light-emitting device 100 via the communication module 210 to execute the random function during a performance.

[0079] The control module 290 can provide the random function to the lighting device 100 using the communication module 210 if the random function is not pre-stored in the lighting device 100 .

[0080] When group assignment information for group-by-group performance production is stored in the light emitting device 100, the control module 290 can broadcast a control command for group-by-group light emission control within the performance venue via the communication module 210.

[0081] In an embodiment, when light emitting devices storing group allocation information (assuming that light emitting devices forming a group are located in the same group) and light emitting devices not storing group allocation information are placed together in a performance hall, the control module 290 can randomly perform light emitting operations of the light emitting devices 100 within a predetermined range at a predetermined time and transmit a group control command only to the light emitting devices storing group allocation information. For example, when the group control command is a command related to human figures, the group control command can be transmitted only to the seats corresponding to the human figures and light emitting operations can be randomly performed for the other seats.

[0082] In this case, the control module 290 can use the light output recognition module to monitor whether the light output of the light emitting devices 100 included in the group is operating as intended, and if the output is not as intended, can sequentially control the corresponding groups so that the intended light output is performed. The light output recognition module can include a light receiving sensor, an image sensor, etc., and the control module 290 can also execute an image recognition algorithm.

[0083] In the embodiment, the group allocation information pre-stored in the light emitting device 100 may introduce and apply a virtual coordinate system to the entire audience seats in a performance venue, thereby defining the entire audience seats in a specific coordinate range. A seat in one audience seat may have a specific xy coordinate value, or adjacent seats in multiple audience seats may have the same xy coordinate value. Furthermore, the position of the seats in the audience seat may be specified by introducing a coordinate system of another type other than the commonly used xy coordinate system.

[0084] In this way, when a part or the whole of the group allocation information stored in advance in the light emitting device 100 is recorded as coordinate information, the performance production mapping data transmitted in real time at the performance site may include a control signal for making the light emitting devices 100 belonging to the corresponding coordinate value range emit light in a specific color based on one or more specific coordinate values ​​or a specific coordinate range in order to specify the light emitting devices 100 that emit light in a specific color. That is, when the group allocation information and the group light emission color information are mapped to each other to configure the performance production mapping data, the coordinate value or the coordinate range can be provided instead of the group allocation information. In this case, the light emitting device 100 receives the performance production mapping data during the performance, determines whether it is included in the specific group allocation information based on the coordinate value to which it belongs, and emits light in the corresponding color accordingly. When the group information according to the coordinate system set for the entire audience of the performance venue is stored in the light emitting device 100 in advance, an impromptu audience lighting production scene can be realized even with a small-scale data transmission. That is, in order to make only the light emitting devices 100 in a specific coordinate range emit light in a specific color, the performance production mapping data is generated or modified and broadcasted, thereby enabling a variable audience lighting production.

[0085] In the embodiment, the performance production mapping data transmitted in real time at the site where the performance is performed may further include dimming information required for each group to emit light in a corresponding color. For example, when group A emits light in a specific color in a specific performance production section (audience performance scene), if the light must be turned on and off repeatedly at a specific time interval, if the light-on and light-off signals are transmitted every time, the amount of signals broadcast in a short time is large, so that a processing delay may occur even if the amount of signals to be processed by the receiving light-emitting device 100 increases. If the blinking interval becomes shorter, for example, 0.5 seconds or less, a certain delay may occur due to the characteristics of signal processing transmitted in real time, and an unnatural performance scene may be realized. Therefore, the performance production mapping data is transmitted only once at the initial start point of a specific performance production section where blinking is required, and information regarding the blinking interval and duration is included in the corresponding performance production mapping data, so that the light-emitting device 100 belonging to the specific group that receives this can realize a cheering lighting performance in which the light-emitting device 100 blinks at the promised time.

[0086] FIG. 4 is a sequence diagram illustrating an embodiment in which a random function according to the present disclosure is stored in the light-emitting device 100, and FIG. 5 is a sequence diagram illustrating an embodiment in which the random function according to the present disclosure is not stored in the light-emitting device 100.

[0087] Referring to FIG. 4, the light emitting device 100 may store a random function in advance (S410).

[0088] The control device 200 can transmit a trigger command to the light emitting device 100 so that the light emitting device 100 randomly performs a performance within a predetermined range at a predetermined time during a performance (S420).

[0089] The light emitting device 100 can execute a random function to randomly produce light emitting actions (S430).

[0090] Referring to FIG. 5, if the random function is not pre-stored in the light emitting device 100 (S510), the control device 200 can transmit the random function to the light emitting device 100 (S520).

[0091] The light emitting device 100 can execute a random function to randomly produce light emitting actions (S530).

[0092] FIG. 6 is a diagram illustrating a random function for randomly directing a light emitting operation according to the present disclosure.

[0093] The control unit 190 of the light emitting device 100 can perform a light emitting operation using a random function RA.

[0094] The control unit 190 can control only at least one (part) of the light emission color, the light emission pattern, and / or the light emission intensity, and can set the other light emission operations randomly.

[0095] Here, the luminous color 610 may include red, black, white, yellow, blue, etc., but the luminous color is not limited to the embodiment.

[0096] The light pattern 620 may include (light emitting) time, cycle, pattern, sequence, blinking, etc., but the light emitting pattern is not limited to the embodiment.

[0097] The light intensity 630 can be selected from among (lighting) maximum, minimum, ramp up, ramp down and blinking, but examples are not limited to this.

[0098] The control unit 190 can control the light emission color 610, the light emission pattern 620, and the light emission intensity 630 to randomly produce the light emission operation of the light-emitting unit 120.

[0099] Meanwhile, the disclosed embodiments may be implemented in the form of a recording medium storing instructions executable by a computer. The instructions may be stored in the form of program code, which, when executed by a processor, generates a program module to perform the operations of the disclosed embodiments. The recording medium may be implemented as a computer-readable recording medium.

[0100] The computer-readable recording medium includes all types of recording media in which computer-readable instructions are stored, such as Read Only Memory (ROM), Random Access Memory (RAM), magnetic tape, magnetic disk, flash memory, optical data storage device, etc.

[0101] As described above, the disclosed embodiments have been described with reference to the accompanying drawings. Those skilled in the art will understand that the present disclosure may be embodied in a form different from the disclosed embodiments without changing the technical idea or essential features of the present disclosure. The disclosed embodiments are illustrative and should not be interpreted as being limited.

Claims

1. A light emitting device for random performance production in a performance venue, A communication unit that communicates with a device having a communication module; A light emitting unit that performs a light emitting operation for cheering using one or more light emitting elements; Memory, A control unit, The control unit is When a random function for randomly directing the light emitting operation of the light emitting unit within a predetermined range is pre-stored in the memory, the random function is executed in accordance with a trigger command of a control device to randomly direct the light emitting operation, The lighting device is configured to receive and execute the random function from the control device to randomly direct the lighting operation if the random function is not pre-stored in the memory.

2. The control unit is The light emitting device according to claim 1 , wherein at least one of a light emission color, a light emission pattern, and a light emission intensity is randomly produced within a predetermined range based on the random function.

3. The random function is The light emitting device according to claim 2, characterized in that it is configured to select two or more light colors from among the light colors that the light emitting device can output, and then randomly produce light colors only within the selected light colors.

4. The random function is 4. The light emitting device according to claim 3, configured to set the light emission intensity to a specific value for a predetermined time or to vary the light emission intensity gradually for a predetermined time.

5. Group assignment information for group-specific performance production is stored in the memory, The control unit is Selectively receiving a control command corresponding to the group assignment information among control commands for light emission control by group broadcast within the performance venue via the communication unit; The light emitting device according to claim 2 , wherein when the light emitting action is randomly performed, a control command corresponding to the group assignment information is reflected.

6. A control device that communicates with one or more light emitting devices for random performance production at a performance venue, A communication module; When a random function for randomly directing the light-emitting operation of the light-emitting device within a predetermined range is pre-stored in the light-emitting device, a trigger command for executing the random function during a performance is provided to the light-emitting device via the communication module; a control module that provides the random function to the lighting device using the communication module if the random function is not pre-stored in the lighting device.

7. The random function is The control device according to claim 6 , configured to randomly produce at least one of the light color, light pattern, and light intensity of the light emitting device within a predetermined range.

8. The random function is The control device according to claim 7, characterized in that it is configured to select two or more light colors from among the light colors that the light emitting device can output, and then randomly produce light colors only within the selected light colors, or to set the light emission intensity to a specific value for a predetermined period of time, or to gradually change the light emission intensity for a predetermined period of time.

9. The control module includes: The control device according to claim 8, wherein when group assignment information for group-by-group performance production is stored in the light-emitting device, the control device is configured to broadcast a control command for group-by-group light-emitting control within the performance venue via the communication module.

Images