CN217936025U - Sound and light control system of live broadcast place - Google Patents
Sound and light control system of live broadcast place Download PDFInfo
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- CN217936025U CN217936025U CN202221115822.0U CN202221115822U CN217936025U CN 217936025 U CN217936025 U CN 217936025U CN 202221115822 U CN202221115822 U CN 202221115822U CN 217936025 U CN217936025 U CN 217936025U
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Abstract
The utility model discloses a sound and light control system in live broadcast place, this system includes: the system comprises a first controller, a light source component, an acousto-optic component and a live broadcast audience terminal; the method comprises the steps that a live audience terminal transmits a user interaction signal to a first controller; the first controller is arranged in a live broadcast place, is connected with the light source assembly and the acousto-optic assembly, generates a first control signal and a second control signal according to the user interaction signal, transmits the first control signal to the light source assembly and transmits the second control signal to the acousto-optic assembly; the light source component comprises a plurality of first lamp beads arranged along the length direction, is arranged in a live broadcast place, and lights the first lamp beads in the light source component after receiving a first control signal; the acousto-optic component is arranged in a live broadcast place and drives a corresponding working mode based on the received second control signal. The system can enrich the interaction form of the remote audience and improve the efficiency of the anchor for obtaining the interaction information of the remote audience.
Description
Technical Field
The utility model relates to an acousto-optic control field, concretely relates to acousto-optic control system in live broadcast place.
Background
With the continuous development of science and technology and society, the direct broadcast industry is also rapidly developed. In the existing live broadcast process, remote audiences mainly interact through modes of commenting, voting, sending virtual gifts and the like.
However, the inventor finds that the following defects exist in the prior art in the implementation process: in the prior art, remote audiences can only control the virtual display form of a virtual live broadcast room, so that the interaction form of the remote audiences in the prior art is single; and the anchor needs to carefully check the content displayed in the anchor device to be able to know the interactive information of the current remote audience, so that the efficiency of the anchor obtaining the interactive information of the remote audience is low.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in view of the above problems, and aims to provide an acousto-optic control system for a live broadcast site that overcomes or at least partially solves the above problems.
The utility model provides an acousto-optic control system in live broadcast place, include: the system comprises a first controller, a light source component, an acousto-optic component and at least one live viewer terminal;
the live audience terminal establishes wireless communication connection with the first controller, outputs a user interaction signal and transmits the user interaction signal to the first controller through the wireless communication connection;
the first controller is arranged in the live broadcast place, is connected with the light source assembly and the acousto-optic assembly, generates a first control signal and a second control signal according to the user interaction signal, and transmits the first control signal to the light source assembly and the second control signal to the acousto-optic assembly;
the light source assembly comprises a plurality of first lamp beads arranged along the length direction, the light source assembly is arranged in the direct seeding place, and the light source assembly receives a first control signal and then lights the first lamp beads in the light source assembly;
the acousto-optic component is arranged in the live broadcast place and drives a corresponding working mode based on the received second control signal.
In an alternative embodiment, the light source assembly further comprises: a light strip and a second controller;
the plurality of first lamp beads are sequentially arranged along the length direction of the lamp strip;
the second controller is electrically connected with the first lamp bead, and the second controller is wirelessly or electrically connected with the first controller; and when the second controller receives each first control signal, the first lamp beads are sequentially lightened along the length direction of the lamp strip.
In an optional implementation manner, each first lamp bead performs brightness attenuation along a preset attenuation curve after being turned on.
In an alternative embodiment, the first lamp bead supports a plurality of colors;
the second controller identifies the color of the first lamp bead in the lighting process every time the second controller receives a first control signal, and sequentially lights each first lamp bead along the length direction of the lamp strip according to the color of the first lamp bead in the lighting process;
wherein, the first lamp pearl colour of two adjacent lightening processes is different.
In an alternative embodiment, the first controller transmits the second control signal to the acousto-optic module with a delay of a first preset duration.
In an optional implementation manner, the first preset time duration is determined according to the time duration for sequentially lighting each first lamp bead.
In an alternative embodiment, the acousto-optic assembly includes: the third controller, the shell and at least one second lamp bead arranged on the surface of the shell;
the third controller is electrically connected with the second lamp bead, and the third controller is wirelessly connected with the first controller; and the third controller identifies a working mode to be driven based on the received second control signal and controls the display color of the second lamp bead according to the working mode.
In an optional embodiment, the third controller counts the number of second control signals received within a second preset time period;
if the number of the second control signals is less than or equal to a preset threshold value, determining that the working mode to be driven is a single color mode, and controlling the display color of the second lamp beads to be a single color;
and if the number of the second control signals is larger than a preset threshold value, determining that the working mode to be driven is a multi-color mode, and controlling the second lamp beads to display multiple colors in a conversion manner.
In an alternative embodiment, the acousto-optic assembly further includes a speaker disposed on a surface of the housing;
the third controller is electrically connected with the loudspeaker, and the third controller controls the loudspeaker to emit preset sound when receiving a second control signal.
According to the utility model discloses an acousto-optic control system in live broadcast place can come the acousto-optic component in the automatic control live broadcast place based on remote user interactive information, embodies remote spectator's interactive information by the entity reputation environment in live broadcast place directly perceivedly, richenes remote spectator interactive form and improves the efficiency that the anchor obtained remote spectator interactive information from this.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following detailed description of the present invention is given.
Drawings
Fig. 1 shows a schematic structural diagram of an acousto-optic control system of a live broadcast place according to an embodiment of the present invention;
fig. 2 illustrates a schematic structural diagram of a light source assembly provided according to an embodiment of the present invention;
fig. 3 shows a schematic diagram of brightness change of a first lamp bead provided according to an embodiment of the present invention;
fig. 4 shows another schematic diagram of the brightness change of the first lamp bead according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram illustrating an acousto-optic assembly according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another acousto-optic assembly provided in accordance with an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a live viewer terminal according to an embodiment of the present invention;
the reference numerals in the detailed description are as follows:
a first controller 100, a light source assembly 200, an acousto-optic assembly 300, a live viewer terminal 400;
a first lamp bead 201, a lamp strip 202 and a second controller 203;
a third controller 301, a shell 302, a second lamp bead 303 and a loudspeaker 304;
a display device 401, an interaction component 402.
Detailed Description
Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "including" and "having," and any variations thereof, in the description and claims of the invention and the above description of the drawings are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present invention, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In the description of the embodiments of the present invention, the term "and/or" is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship. In the description of the embodiments of the present invention, the term "plurality" refers to two or more (including two), and similarly, "plural groups" refers to two or more (including two), and "plural pieces" refers to two or more (including two).
In the description of the embodiments of the present invention, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for convenience of description and simplification of the description, but does not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention.
In the description of the embodiments of the present invention, unless explicitly specified or limited otherwise, the terms "mounted," "connected," and "fixed" are used in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In order to solve the technical problems that the interaction form of the remote audience is single and the efficiency of acquiring the interaction information of the remote audience by the anchor broadcast is low in the prior art, the inventor designs the acousto-optic control system of the live broadcast place through intensive research. Wherein, the embodiment of the utility model provides a live the acousto-optic control system in place can but not be limited to and use in the live place of entity such as indoor, outdoor.
For a better understanding of the present invention, embodiments of the present invention will be described in detail below with reference to fig. 1 to 7.
Fig. 1 shows a schematic structural diagram of an acousto-optic control system of a live broadcast place provided in accordance with an embodiment of the present invention. As shown in fig. 1, the sound and light control system of the live broadcast site includes: a first controller 100, a light source assembly 200, an acousto-optic assembly 300, and at least one live viewer terminal 400.
The live broadcast viewer terminal 400 can be flexibly set in regions such as outside a live broadcast site, a wireless communication connection is established between the live broadcast viewer terminal 400 and the first controller 100, and the live broadcast viewer terminal 400 can output a user interaction signal and transmit the user interaction signal to the first controller 100 through the wireless communication connection. Each live viewer terminal 400 may thus convert a user operation of a remote user using the live viewer terminal into a user interaction signal and transmit the user interaction signal to the first controller 100. Moreover, the wireless communication connection is established between the live broadcast audience terminal 400 and the first controller 100, so that the flexibility of the position of the live broadcast audience terminal 400 can be improved, the live broadcast audience terminal 400 can be quickly connected with the first controller 100 conveniently, and the expandability of the system is improved.
The first controller 100 is disposed in a live broadcast location, and is connected to the light source module 200 and the acousto-optic module 300, and the first controller 100 generates a first control signal and a second control signal according to a user interaction signal transmitted by the live broadcast viewer terminal 400, and transmits the first control signal to the light source module 200 and the second control signal to the acousto-optic module 300. Therefore, the first controller 100 can converge the user interaction signals transmitted by the live viewer terminals 400, convert each user interaction signal into a first control signal that can be recognized by the light source assembly 200, and convert each user interaction signal into a second control signal that can be recognized by the acousto-optic assembly 300, and transmit the converted signals to the light source assembly 200 and the acousto-optic assembly 300, so that the user interaction information can be transmitted to the light source assembly 200 and the acousto-optic assembly 300 in the live broadcast place. Wherein the first controller 100 includes, but is not limited to, one or more of the following: microprocessors, micro-control devices, digital signal processors, system-on-chip, field programmable gate arrays, programmable control devices, and the like.
The light source assembly 200 includes a plurality of first lamp beads 201 arranged along the length direction, the light source assembly 200 is arranged in a live broadcast place, and the first lamp beads 201 in the light source assembly 200 are lighted after the light source assembly receives a first control signal. Optionally, the light source assembly 200 may specifically be a light source assembly provided with a lamp bead along the length direction, such as a horse race lamp and a water lamp. The light source assembly 200 is thus capable of intuitively expressing user interaction information.
The acousto-optic assembly 300 is disposed in the live broadcast site, and the acousto-optic assembly 300 drives a corresponding operating mode based on the received second control signal. The acousto-optic assembly 300 is thus able to intuitively convey user-interactive information.
Therefore, in the embodiment, the live audience terminal converts the user interaction operation into the user interaction signal and transmits the user interaction signal to the first controller in the live broadcast place; converting the user interaction signal into a first control signal by the first controller and transmitting the first control signal to the light source assembly, and representing the user interaction information by the light source assembly; the first controller also converts the user interaction signal into a second control signal and transmits the second control signal to the acousto-optic component, and the acousto-optic component represents the user interaction information. Therefore, the acousto-optic element in the live broadcast place can be automatically controlled based on the remote user interaction information, the interaction information of the remote audience is visually embodied by the entity acousto-optic environment of the live broadcast place, the interaction form of the remote audience is enriched, and the efficiency of the anchor program for obtaining the interaction information of the remote audience is improved.
In some alternative embodiments, fig. 2 illustrates a schematic structural diagram of a light source assembly provided according to an embodiment of the present invention. As shown in fig. 2, the light source assembly 200 includes: a plurality of first lamp beads 201, a lamp strip 202 and a second controller 203.
The plurality of first lamp beads 201 are sequentially arranged along the length direction of the lamp strip 202, and the specific type, shape and the like of the first lamp beads are not limited in this embodiment, for example, the first lamp beads 201 may specifically be LED lamp beads and the like. The embodiment does not limit the fixing manner of the first lamp bead and the lamp strip, for example, the first lamp bead may be fixed in the lamp strip 202 in the manners of inserting, bonding, etc. It should be understood here that fig. 2 is only a schematic structural diagram of an optional light source assembly provided by the present invention, and a person skilled in the art can flexibly set the structure of the light source assembly, for example, the light strip in fig. 2 can be replaced by a strip-shaped bearing plate, and the first light beads are sequentially arranged along the length direction of the strip-shaped bearing plate; or the lamp strip can be replaced by a tubular object, the first lamp beads are sequentially arranged along the length direction of the tubular object, and the like.
The second controller 203 is electrically connected with the first lamp bead 201. In this embodiment, a specific connection manner between the second controller 203 and the first lamp bead 201 is not limited. For example, the second controller 203 further includes a master controller and single controllers, one single controller and one first lamp bead 201 form one loop, each single controller can control the on and off of the first lamp bead 201 in the loop, and the master controller controls each first lamp bead 201 by controlling each single controller. Wherein, the master includes but is not limited to one or more of the following: microprocessors, micro-control devices, digital signal processors, system-on-chip, field programmable gate arrays, programmable control devices, and the like.
The second controller 203 is also wirelessly or electrically connected to the first controller 100. Every time the second controller 203 receives a first control signal, the first lamp beads 201 are lighted to the last first lamp beads 201 in the length direction of the lamp strip to serve as a lamp bead lighting process, and then the second controller 203 executes a lamp bead lighting process every time the second controller 203 receives a first control signal, so that the information flow effect of user interaction information transmitted to the live broadcast place from the outside of the live broadcast place is visually simulated.
In some optional embodiments, brightness of each first lamp bead 201 is attenuated along a preset attenuation curve after being turned on, that is, brightness of the first lamp bead is strongest when being turned on, and then brightness of the turned-on first lamp bead 201 is gradually reduced until the first lamp bead 201 is turned off or keeps low brightness. Take fig. 3 as an example. Fig. 3 shows according to the utility model provides a first lamp pearl luminance change schematic diagram, as shown in fig. 3, the first lamp pearl that is lighted at present is the first lamp pearl of serial number 8, then can see out the luminance of the first lamp pearl of serial number 8 from fig. 3 strongest, and the first lamp pearl of serial number 7 is the last first lamp pearl of being lighted, then the luminance of the first lamp pearl of serial number 7 has attenuated, simulates out user interaction information's transmission process more vividly from this.
In some optional embodiments, the first lamp bead 201 supports multiple colors, for example, it can support multiple colors such as red, yellow, blue, green, and purple; the second controller 203 identifies the color of the first lamp bead in the lighting process every time it receives a first control signal, and lights each first lamp bead in sequence along the length direction of the lamp strip according to the color of the first lamp bead in the lighting process; the colors of the first lamp beads in the adjacent two lighting processes are different, so that the different first control signal circulation processes can be identified conveniently. Use fig. 4 as an example, fig. 4 shows according to the utility model discloses another kind of first lamp pearl luminance change schematic diagram that provides. As shown in fig. 4, in the lighting process of the lamp bead corresponding to the nth first control signal, the first lamp bead numbered 10 is currently lighted, in the lighting process of the lamp bead corresponding to the N +1 th first control signal, the first lamp bead numbered 5 is currently lighted, then the first lamp beads numbered 6, 7, 8, 9, 10 are in the first color, while the first lamp beads numbered 1, 2, 3, 4, 5 are in the second color, in addition, the first lamp beads numbered 11, 12 are in the first lamp beads corresponding to the N-1 th first control signal, which have brightness attenuation, and thus the first lamp beads numbered 11, 12 are in the third color.
In some optional embodiments, the first controller 100 delays the second control signal by a first preset time and transmits the delayed second control signal to the acousto-optic component, so that the light source component runs the horse in running water and then starts the acousto-optic component after receiving a user interaction signal in the live broadcast place.
In some optional embodiments, the first preset time period is determined according to a time period for sequentially lighting each first lamp bead. The time from the first lamp bead 201 to the last first lamp bead 201 is the time for sequentially lighting each first lamp bead. Present on visual effect from this, after every receiving a user interaction signal, the light source subassembly carries out once one-way running water horse, treats once one-way running water horse and finishes the back reputation subassembly and starts, further promotes the bandwagon effect in live place from this. Further optionally, last first lamp pearl can be adjacent or meet with the reputation subassembly, can demonstrate the effect that information transferred to the reputation subassembly via the light source subassembly from this in the vision, further promotes the bandwagon effect.
In some alternative embodiments, fig. 5 is a schematic structural diagram of an acousto-optic assembly according to an embodiment of the present invention. As shown in FIG. 5, the acousto-optic assembly 300 includes: the lamp comprises a third controller 301, a shell 302 and at least one second lamp bead 303 arranged on the surface of the shell 302. It should here be understood that the structure shown in fig. 5 is only an alternative structure for the acousto-optic component, which may also be a display device or the like.
In some optional embodiments, the third controller 301 counts the number of the second control signals received within a second preset time period; if the counted number of the second control signals is smaller than or equal to a preset threshold value, determining that the working mode to be driven is a single color mode, and controlling the display color of the second lamp beads to be a single color; and if the counted number of the second control signals is larger than a preset threshold value, determining that the working mode to be driven is a multi-color mode, and controlling the second lamp beads to display multiple colors in a conversion manner. Therefore, when the quantity of second control information received by the acousto-optic component in a second preset time length is large, the second lamp beads are displayed in a multi-color conversion mode; when the quantity of the second control information received in the second preset time length is small, the second lamp beads are presented in a single color, and therefore the quantity of the second control information received in the second preset time length is visually represented through the color of the second lamp beads. Further optionally, if the counted number of the second control signals is 0, the display color of the second lamp bead is controlled to be the default color.
In some optional embodiments, if it is determined that the to-be-driven operating mode is the single color mode, determining a first lamp bead color of the light source assembly corresponding to the first control signal generated in synchronization with the second control signal, and continuing to use the first lamp bead color as a color of the second lamp bead, thereby ensuring uniformity of lamp bead colors corresponding to the first control signal and the second control signal generated by the same user interaction signal, and improving user visual experience.
In some alternative embodiments, fig. 6 is a schematic structural diagram of another acousto-optic assembly provided in accordance with an embodiment of the present invention. As shown in fig. 6, the acousto-optic assembly 300 further includes a speaker 304 disposed on the surface of the housing 302, in addition to the third controller 301, the housing 302 and the second light bead 303; the third controller 301 is electrically connected to the speaker 304, and when the third controller 301 receives a second control signal, the speaker 304 is controlled to emit a preset sound, so as to remind that a new user interaction message is currently available.
In some optional embodiments, fig. 7 shows a schematic structural diagram of a live viewer terminal 400 provided according to an embodiment of the present invention. As shown in fig. 7, the live viewer terminal 400 includes a display device 401 and an interactive component 402, wherein the display device 401 is wirelessly or electrically connected to the interactive component 402. For example, the display device 401 and the interaction component 402 may be integrally formed, and the live viewer terminal 400 may be a mobile phone, a tablet, a computer, or the like; or, the display device 401 and the interaction component 402 may be independently arranged, for example, the display device 401 may be a display, the interaction component 402 may be a remote control device, an intelligent wearable device (such as AR glasses, an intelligent watch, and the like), a button device, and the like, and a live viewer may generate user interaction information by pressing the button device or the remote control device, or may generate user interaction information by clicking a virtual control in a mobile phone, a tablet, a computer, and an intelligent watch, or may trigger generation of the user interaction information by preset gesture operation, limb operation, voice control operation, face control operation, shortcut key operation, and the like, which is not limited in this embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (9)
1. An acousto-optic control system for a live broadcast venue, comprising: the system comprises a first controller, a light source component, an acousto-optic component and at least one live viewer terminal;
the live audience terminal establishes wireless communication connection with the first controller, outputs a user interaction signal and transmits the user interaction signal to the first controller through the wireless communication connection;
the first controller is arranged in the live broadcast place, is connected with the light source assembly and the acousto-optic assembly, generates a first control signal and a second control signal according to the user interaction signal, and transmits the first control signal to the light source assembly and the second control signal to the acousto-optic assembly;
the light source assembly comprises a plurality of first lamp beads arranged along the length direction, the light source assembly is arranged in the direct seeding place, and the light source assembly receives a first control signal and then lights the first lamp beads in the light source assembly;
the acousto-optic component is arranged in the live broadcast place and drives a corresponding working mode based on the received second control signal.
2. The system of claim 1, wherein the light source assembly further comprises: a light strip and a second controller;
the plurality of first lamp beads are sequentially arranged along the length direction of the lamp strip;
the second controller is electrically connected with the first lamp bead, and the second controller is wirelessly or electrically connected with the first controller; and when the second controller receives a first control signal, sequentially lightening each first lamp bead along the length direction of the lamp strip.
3. The system of claim 2, wherein each first lamp bead undergoes a brightness decay along a predetermined decay curve after being lit.
4. The system of claim 2, wherein the first light bead supports a plurality of colors;
the second controller identifies the color of the first lamp bead in the lighting process every time the second controller receives a first control signal, and sequentially lights each first lamp bead along the length direction of the lamp strip according to the color of the first lamp bead in the lighting process;
wherein, the first lamp pearl colour of two adjacent lightening processes is different.
5. The system according to any of claims 1-4, wherein the first controller transmits the second control signal to the acousto-optic assembly with a delay of a first predetermined duration.
6. The system of claim 5, wherein the first predetermined period of time is determined by the period of time that each of the first light beads are illuminated in sequence.
7. The system according to any of claims 1-4, wherein the acousto-optic assembly comprises: the lamp comprises a third controller, a shell and at least one second lamp bead arranged on the surface of the shell;
the third controller is electrically connected with the second lamp bead, and the third controller is wirelessly connected with the first controller; and the third controller identifies a working mode to be driven based on the received second control signal and controls the display color of the second lamp bead according to the working mode.
8. The system of claim 7, wherein the third controller counts the number of second control signals received within a second predetermined time period;
if the number of the second control signals is less than or equal to a preset threshold value, determining that the working mode to be driven is a single color mode, and controlling the display color of the second lamp beads to be a single color;
and if the number of the second control signals is larger than a preset threshold value, determining that the working mode to be driven is a multi-color mode, and controlling the second lamp beads to display multiple colors in a conversion manner.
9. The system of claim 7, wherein the acousto-optic assembly further comprises a speaker disposed on the surface of the housing;
the third controller is electrically connected with the loudspeaker, and the third controller controls the loudspeaker to emit preset sound when receiving a second control signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221115822.0U CN217936025U (en) | 2022-04-29 | 2022-04-29 | Sound and light control system of live broadcast place |
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| CN202221115822.0U CN217936025U (en) | 2022-04-29 | 2022-04-29 | Sound and light control system of live broadcast place |
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