CN111432259B - Large-scale performance control system based on time code synchronization - Google Patents
Large-scale performance control system based on time code synchronization Download PDFInfo
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- CN111432259B CN111432259B CN202010173089.7A CN202010173089A CN111432259B CN 111432259 B CN111432259 B CN 111432259B CN 202010173089 A CN202010173089 A CN 202010173089A CN 111432259 B CN111432259 B CN 111432259B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Abstract
The embodiment of the invention discloses a large-scale performance control system based on time code synchronization. The large-scale performance control system comprises: the system comprises a time code synchronization/audio playing unit for outputting uniform synchronization time codes and multichannel audio signals, an audio control unit for inputting the multichannel audio signals and the audio signals of all servers of a video playing unit, a video control unit for synchronously controlling and playing the video output of all the playing units according to the received synchronization time codes, a video pre-monitoring unit for monitoring the video pictures output by all the video playing units and receiving and displaying the synchronization time codes, and a control unit for synchronously outputting the corresponding special effects of lamplight, laser, water show and the like through a pre-coding program according to the received synchronization time codes. The method has the characteristics of high integration, modularization and safety, forms a uniform control protocol for the performance control system, and realizes the nonlinear real-time code synchronization of the whole system.
Description
Technical Field
The invention relates to the technical field of performance control systems, in particular to a large-scale performance control system based on time code synchronization.
Background
The existing large-scale performance control system (including audio and video system, lighting system, laser water show and other systems) is generally divided into the following two control modes:
one of them is that the control systems of different specialties are manually controlled by human respectively. Such a control method requires a large number of operators and is poor in synchronization performance. Still others utilize lighting console programming to control lights, video servers, laser shows, etc. using DMX512, Artnet control protocols.
However, the light console cannot synchronize audio and video contents at any music time point by using a "CUE" triggered synchronized broadcast control method for the video server. Moreover, music playing and light control consoles in the sound system need to be manually controlled, or a video server is used for playing audio, so that the audio quality is poor, and the synchronization performance is general.
In the process of implementing the invention, the inventor finds that the following problems exist in the related art: the existing large-scale performance sound system, video system, lighting system, laser water show and other various professional systems are designed and installed by different manufacturers, unified coordination is lacked, the control system and the control room are respectively in the same layout, the control protocol is not unified, the equipment installation layout is not coordinated, and the control table top and the comprehensive wiring are disordered.
Disclosure of Invention
In view of the above technical problems, embodiments of the present invention provide a large-scale performance control system based on time code synchronization, so as to solve the problems that it is difficult for various professional systems in an existing large-scale performance show to coordinate uniformly and the synchronization is poor.
The first aspect of the embodiments of the present invention provides a large-scale performance control system based on time code synchronization. The large-scale performance control system comprises: the system comprises a time code synchronization and audio playing unit, a video control unit, a video pre-monitoring unit, a light control unit, a laser control unit, a water show control unit and the like.
The time code synchronization and audio playing unit is used for generating a unified synchronization time code and editing and playing the primary music stereo or multi-channel surround sound of performance; the audio control unit is used for inputting audio output signals of the audio playing unit and the video playing unit and outputting audio signals of the complete redundancy backup system; the video control unit is used for performing the audio and video arrangement of the program at the early stage, synchronously controlling the video broadcasting unit through a network and uploading video and audio materials; synchronously controlling and playing the video output of all the video playing units according to the received synchronous time code; and the light control unit, the laser and the water show control unit are used for synchronously outputting the corresponding special effects of light, laser, water show and the like through a pre-programmed program according to the received synchronous time code.
The technical scheme provided by the embodiment of the invention provides a highly integrated, modularized and safe solution, forms a uniform control protocol for performance control systems (audio and video, light, projection, laser, water show and the like), and realizes full-system nonlinear real-time code Synchronization (SMPTE).
Furthermore, the large-scale performance control system based on time code synchronization is additionally provided with a video pre-monitoring unit (used for monitoring video pictures output by all video broadcasting units and receiving and displaying the synchronous time codes), a wireless time code unit (used for receiving the synchronous time codes and displaying the synchronous time codes), a main system, a backup system, emergency switching control and other frameworks, the complete control system can run completely and independently, the system can be conveniently monitored and fault pre-judged by operators, and the required operators are effectively reduced.
Optionally, the LED screen processor and display unit, the projector display unit, the rear-stage power amplifier sound system unit (such as a power amplifier and a speaker), the light control unit (such as a light console), the terminal unit (such as a lamp), the laser control and terminal unit (such as a laser), the water show control and terminal unit, and the like in the embodiment of the present invention may be implemented by other professional manufacturers according to a protocol architecture uniformly designed by the system.
Optionally, the embodiment of the present invention may further include a function module for centralized power management and control of all terminal devices, so that all devices can perform remote power control in the control room.
Optionally, the embodiment of the present invention may further include a UPS for supplying power for a long time (e.g., 4 hours) to all control devices (not including terminal output devices such as a lamp, a sound, an LED, and a projector) in the control room, so as to improve the safety of the system.
Optionally, the time code synchronization-based large-scale performance control system in the embodiment of the present invention includes customizing cabinets and console tables for control devices (including control devices provided by different manufacturers) in all control rooms, and planning device layouts of different specialties and comprehensive wiring of anti-interference power lines and signal lines. All signal lines are all orderly built in a console table designed in the previous period, so that the stability of the system and the orderly tidiness of a control room can be guaranteed to the maximum extent.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a complete redundancy system in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of a large-scale performance control system according to an embodiment of the present invention;
FIG. 3 is a schematic plan view of an embodiment of a large-scale performance control system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of another embodiment of the large-scale performance control system according to the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", and the like used herein refer to an orientation or positional relationship based on that shown in the drawings, and are used only for convenience of describing the present invention and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
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 in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic structural diagram of a large-scale performance control system according to an embodiment of the present invention. The large-scale performance control system comprises a plurality of modules with different specialties, and realizes synchronization and control among the plurality of specialties through time synchronization codes, so that smooth operation of large-scale performance programs is ensured. As shown in fig. 1, the large-scale performance control system may include the following functional modules: a time code synchronization and audio playing unit 110; the video control and playback unit 120-125; audio control and sound terminal 130-131; a wireless network control and time code display unit 140-142; the light special effect units 160 and 161, 170 and 171 and 180 and 181; the video display device: an LED screen processing and display unit 150 and a projector display unit 152.
The units 131, 150, 151, 152, 161, 170, 171, 180, 181 can be freely combined and configured by other professional manufacturers according to the performance needs and a uniform protocol;
the embodiment of the invention shown in fig. 1 includes a fully redundant backup of the main units of the large-scale performance control system, and can realize time code synchronous control of the large-scale performance system only by configuring a main control unit (without a backup unit) according to the investment cost of customers, and has the disadvantage that the system has no redundant backup;
the embodiment of the invention shown in fig. 1 is capable of operating independently except for professional terminals. Namely: all the control devices in the control room can independently operate under the state of no power-on corresponding to each professional terminal device outside the control room, and therefore the system state and the fault link can be conveniently and visually judged by an operator. The disadvantages of other implementation items at present are avoided.
The time code synchronization unit 110 is used for generating a uniform synchronization time code. The time code synchronization module 110 in this embodiment includes an audio production system, which generates a corresponding synchronization time code according to the music time length of the performance program.
The audio workstation in the time code synchronization unit can preset scene time mark points according to chapter paragraphs of the show, and the mark points can be accessed and played quickly and quickly.
Preferably, in order to ensure the redundancy backup function, the time code synchronization unit may further include: the system comprises a main time code synchronization unit and a backup unit which has the function completely consistent with that of the main time code synchronization unit.
The main and standby time code synchronous devices completely synchronously generate synchronous time codes and audio play through MIDI protocol. When the main unit fails, the backup unit can be operated in time, and the synchronous operation of the system is restored.
In some embodiments, the video system is composed of a video control unit 120, a video broadcasting unit 121, a video matrix unit 122, a video pre-monitoring unit 123, a video acquisition unit 124, and a projector control unit 125;
the video control unit 120 is a functional module related to video data processing in the system, and may be configured to control a plurality of video broadcast servers through a network according to the received synchronization time code, and output corresponding multiple channels of video information. Each path of video information is relatively independent video data, and a proper number of video transmission channels can be set according to the requirements of actual conditions to be respectively used for transmitting multiple paths of video signals.
Preferably, in order to ensure the redundancy backup function, the video control unit may further include: the video backup system comprises a main video control unit and a backup control unit which has the function completely consistent with that of the main video control unit.
The main and standby video control units can receive the synchronous time codes to control video output, and can also play audio and video signals in the system in a manual playing mode.
The main video control unit and the backup control unit can be freely switched, and when the main video control unit fails, the main video control unit can be switched to the backup control unit. And the backup control unit executes the function of the main video control unit to ensure the normal operation of the system.
The video playing unit 121 includes a main video playing server group a and a backup video playing server group B, and video information output by the main and backup video playing servers is completely consistent. The video output of the active/standby devices is integrated into the video matrix unit 122, and the video matrix unit routes the distribution signal to the active/standby transmission lines and the active/standby video pre-monitoring unit 123.
In this embodiment, each video output channel in the video playing unit 121 defines an ID name number (EDID information) of a unique main/standby identifier, and each video output channel is configured to output corresponding video information to a video display terminal for displaying.
By the unique ID name number, it is possible to prevent the output signal from being disorganized when a certain video display device malfunctions. When a large-scale display system is constructed, a large number of LED screens can be used for splicing, splicing and fusing a plurality of projectors, superposing the projectors and the like, and the large-scale display system can play a great role in performance occasions.
In this embodiment, when designing different theater systems, the video content production unit is designed in the early stage for different LED screen specifications, different physical resolutions (effective highest resolutions), different numbers of projectors, and the video canvas, the split output template, the test chart, and the like are designed, so that the total resolution of the nonstandard ultrahigh resolution can be calculated, and then the video can be split into a plurality of different high-definition videos.
Each of the divided high definition videos may be output by a video channel corresponding to the video playing unit 121, so as to achieve a point-to-point highest definition display effect.
The main and standby design of the video playing server group greatly improves the safety factor of video output, and when a certain video playing server of the main video server group breaks down, the video playing server can be simply switched through the video matrix unit 122, so that safety guarantee is provided for videos in the performance system.
The video matrix unit 122 in the system, in addition to the video signal routing function of conventional design, has another main function of locking the display properties of the video output port of the video playing server. Unique EDID information is written separately to each input channel of the video matrix unit 122 by pre-programming. So as to prevent the ID sorting of the video output port from being disordered when the server operating system or the display terminal fails.
In the video matrix unit 122, 1 DVI video matrix and the primary and secondary 2 video broadcast servers are combined to perform primary and secondary output on four paths of video signals. The main and standby working modes are prefabricated, panel keys or access central control equipment can be conveniently and quickly operated, and the operation mode is freely switched to a safe operation mode.
The above combination can be freely configured according to the requirement of the number of the video channels of the system.
Fig. 2 is a schematic structural diagram of a large-scale performance control system according to another embodiment of the present invention. As shown in fig. 2, in addition to the functional modules of fig. 1,
as shown in fig. 2, the large-scale performance control system may further add other functional modules to better enhance the user experience. The method can also comprise the following steps: and the video pre-monitoring unit 123 is used for providing system running state information and improving performance safety guarantee.
The video pre-monitoring unit 123 may be connected to the video playing server 121 through an integrated video output port matrix, and is configured to display the content and the synchronization time code of each path of video information. Specifically, the video pre-monitoring unit 123 may display video contents of all video output channels and names of custom master/slave video channels, and may further decode and display a time code SMPTE of the synchronization system by using different border colors for distinction.
The functional unit is convenient for an operator to visually judge the running states of the main and standby broadcasting server systems and the time codes, so that the synchronous running state of the whole system is observed, and good safety guarantee is provided for performance.
The audio control unit 130 is a functional module that performs tuning, mixing, outputting, and the like on an audio signal. The audio workstation is connected with audio signals output by the audio workstation, the video playing server and other sound sources such as a CD player, a wireless microphone and the like, and provides performance signals for a sound system power amplifier and a loudspeaker.
In an embodiment, the audio control unit 130 may be a digital mixing console, and preferably, the mixing console may include both a main mixing console and a backup mixing console. The master and backup mixing consoles may be controlled synchronously via the MIDI protocols.
In an embodiment, the main sound console and the backup sound console provide multi-path cross redundancy backup for audio signals of the main and standby audio workstations and the main and standby video broadcasting servers. Namely: the main audio workstation outputs two groups of audio signals, wherein the group A of audio signals are connected to the main sound console, and the group B of audio signals are connected to the backup sound console; the backup audio workstation outputs two groups of audio signals, the group C audio signals are connected to the backup sound console, and the group D audio signals are connected to the main sound console; the audio signal of the main video broadcasting server group is accessed to the main sound console, and the audio signal of the backup video broadcasting server group is accessed to the backup sound console. 16 BUS buses output by the main and standby 2 sound mixing consoles freely switch main and standby signals through designed audio matrix equipment, and provide safe output for sound terminal units.
With continued reference to fig. 2, the large-scale performance system may further include: a wireless network unit 140, a wireless time code unit 141 and a wireless control unit 142.
The wireless network unit 140 is used to establish a wireless network communication module, which is accessed to an audio/video system network and establishes a global APP network in the affiliated performance area. The communication connection can be established with one or more terminal devices, so as to receive control instructions from the terminal devices and feed back data information to the terminal devices.
Further, the wireless control function of the system can be implemented in conjunction with the wireless control system 141 based on the wireless network provided by the wireless network unit 140. For example, the customized APP or webpage client is used for controlling the audio and video playing, video brightness, audio volume and the like of the system, so that a director can control the whole system during rehearsal, and the application experience is good. Or the system debugging is facilitated, and the remote debugging of the projector (including geometric correction, splicing, fusion and the like) is realized.
The wireless time code unit 141 is configured to receive the synchronization time code in a wireless signal transmission manner, and convert the synchronization time code into corresponding time prompt information for displaying. The wireless time code unit 141 may specifically require the deployment of an appropriate number of mobile terminals. Considering that the control rooms of different specialties and posts in a large-scale performance program are different in position, the mobile terminal of the wireless time code unit 141 can be respectively allocated to different positions and persons such as a director, a field note, a clothing room, a dressing room and a prop room during rehearsal synthesis, so that accurate time reminding and display except listening to music can be realized. In addition, the wireless transmission mode does not need complex wiring, installation and debugging, and has good use experience.
The video display device includes: an LED processor unit 150, an LED screen display unit 151, and a projector display unit 152.
The units 150, 151, 152 may be provided and implemented by a professional manufacturer according to actual needs.
In the embodiment of fig. 2, in the early design, different display systems can be constructed for different types of LED displays or projection splicing fusion displays according to the requirement of the director on the effect of performing video dance decoration. The design of the case is mainly characterized in that complicated and numerous LED screen sending card network cables or optical fibers are avoided in a control room, the output ends of the LED processor sending cards are output to a professional electric/optical conversion device in a centralized mode, and the LED processor sending cards are transmitted through one optical fiber through the professional electric/optical conversion device. And each path of the main-standby photoelectric conversion and the optical fiber transmission is formed.
The LED is selected according to design requirements and has the functions of forward transmission and backup reverse transmission signals, and when the main transmission signal is lost, the backup transmission can be automatically started. This greatly improves the safety of LED screen display.
The projector display unit 152 is collectively and collectively controlled by the projector control unit 125 as power management, shutter control, and the like. Unit 152 includes projectors of unlimited numbers or different models connected through the system network.
In the embodiment, the simulation projection display effect is simulated in the early stage according to the requirements of different performance fields, projection areas and the like, and the parameters of the projector such as the installation position, the installation angle and the like are calculated; and meanwhile, the reference is provided for the selection of the projector and the type of the used lens.
The light special effect comprises the following steps: a light control unit 160, a laser control unit 170, a water show control unit 180, terminal equipment thereof, and the like;
the function module is used for outputting the corresponding light special effect according to the received synchronous time code. The specific lighting special effect used can be set according to the performance program and the actual design condition of the system.
In some embodiments, the light control unit 160 may include: the system comprises a main and standby two desk lamplight control stations and an Art Net network decoding device, wherein the main and standby two desk lamplight control stations are used for controlling lamplight; the two desk light control tables are mutually in hot backup.
In the light control unit 160, a light effect control program previously edited according to the synchronization time code is stored. The light effect control program can record: and when a certain synchronous time code is received, starting the corresponding control unit to output the corresponding light special effect.
The laser control unit 170 includes: the laser control servers can flexibly use the time codes provided by the time code units or the DMX512/ArtNet protocol of the light control console to carry out synchronous control according to the selection of equipment or different software.
The water show control unit 180 includes: the water show control server can flexibly use the time code provided by the time code unit or the DMX512/ArtNet protocol of the light control console to carry out synchronous control according to the selection type or different software of the equipment.
Therefore, a lamplight engineer can edit control CUEs such as lamplight, laser and water show according to the time codes, and the full-automatic control of the systems such as the lamplight, the laser and the water show can be realized only by recording and storing the control CUEs once according to the time codes (music) in a manual preprogramming mode as corresponding control programs.
Certainly, according to the needs of actual conditions, one or more functional units in the light special effect system can be added or omitted, so that other different types of light special effects are realized, and the requirements of large-scale performance programs are met.
Fig. 3 is a plan layout view of a control room device of a large-scale performance program control system according to an embodiment of the present invention. As shown in fig. 3, the complete system comprises: the main/backup video control console 31 responsible for controlling video signals, the synchronization device 32 responsible for generating synchronization time codes, the display 33 of the main/backup pre-monitoring module, the main/backup audio workstation 34, the main digital sound console 35a, the backup digital sound console 35b, the main lighting control console 36a, the backup lighting control console 36b, the main/backup laser water show control console 37, and a plurality of related device cabinets are respectively used for storing corresponding devices.
The cabinet may include a cabinet 381 for placing sound source devices, a cabinet 382 for placing audio main/standby switching devices for switching between main/backup, a cabinet 383 for placing video capture devices, a cabinet 384 for placing main/backup video controllers, a cabinet 385 for placing video servers, a UPS power supply cabinet 386 for supplying power to the whole system, and a cabinet 387 for placing sound playing terminal power amplification devices.
The whole system has high automation degree, can effectively reduce the number of operators, reduces the number of the operators to be operated by only one person (light, elegance and a laser control console can be operated without personnel by all the original professionals, so that automatic control is realized), and greatly reduces the cost of human resources. Moreover, each functional module is provided with a main backup system, so that the hot backup synchronous operation of the system can be realized, and the safety and the stability of the broadcasting of large-scale performance programs can be effectively improved.
In summary, the large-scale performance program control system provided by the embodiment of the invention constructs an independent high-speed local area network in the system, provides a virus isolation network for audio and video file sharing, has better security, solves the system stability and security problems of large-scale performance shows, and provides a highly integrated modular solution.
Fig. 4 is a simplified version of a system providing time code synchronization, implemented with limited investment on the part of the sponsor, without providing redundant backup functionality.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
It should be understood that the technical solutions and concepts of the present invention may be equally replaced or changed by those skilled in the art, and all such changes or substitutions should fall within the protection scope of the appended claims.
Claims (6)
1. A large-scale performance control system based on time code synchronization is characterized by comprising:
the time code synchronization and audio playing unit is used for generating a unified synchronization time code, editing and playing the primary music stereo or multi-channel surround sound of performance and serving as a control center of the large-scale performance control system;
the time code synchronization and audio playing unit comprises: the main and standby two Apple system audio workstations, a professional audio interface, audio editing software and a time code generator are switched through a time code distributor;
in the time code synchronization and audio playing unit, two sets of main and standby audio workstations synchronously control playing through an MIDI protocol, and one main audio workstation and one slave audio workstation can simultaneously output synchronous time codes and audio signals;
light, laser, water show unit includes: the system comprises a light control unit for controlling light, a laser control unit for controlling laser and a water show control unit for controlling a water show;
the light control unit, the laser control unit and the water show control unit are internally stored with a light effect control program which is pre-edited according to a synchronous time code, and the light effect control program automatically controls and outputs a corresponding light special effect under the driving of the synchronous time code;
the audio control unit is used for inputting audio output signals of the audio playing unit and the video playing unit and outputting audio signals of the complete redundancy backup system;
the video control unit is used for performing the audio and video arrangement of the program at the early stage, synchronously controlling the video broadcasting unit through a network and uploading video and audio materials; synchronously controlling and playing the video output of all the video playing units according to the received synchronous time code;
the video playing unit is used for playing all video pictures of the system;
the video play-out unit includes: the system comprises a main video broadcasting server group and a backup video broadcasting server group, wherein the number of each group of video broadcasting servers is configured according to the number requirement of video output channels; one video control server can control N video broadcasting servers;
each server in the video broadcasting unit is provided with one or more high-definition video acquisition cards according to the requirement, high-definition video signals can be acquired through wired or wireless, and the acquired high-definition signals are output to the display terminal in real time in the video broadcasting unit;
each video broadcasting server in the video broadcasting unit is provided with a professional audio output interface to provide redundancy backup for music audio signals, the audio signals of the main video broadcasting server group are accessed into the main sound console, and the audio signals of the backup video broadcasting server group are accessed into the backup sound console, so that the safety is improved;
all video broadcasting servers in the video broadcasting units write EDID information into a DVI video matrix through early-stage EDID programming, and self-define the unique ID name number of each video output channel and the resolution required by the system;
the video matrix unit is used for connecting the video output of the video broadcasting unit and routing the video signals to the LED display unit, the projector display unit and the video pre-monitoring unit according to the requirements;
the video pre-monitoring unit is used for monitoring all video output pictures of the video broadcasting unit, receiving the time code of the time code synchronization unit and decoding and displaying the time code;
the light control unit is used for outputting a corresponding light special effect according to the received synchronous time code;
the laser control unit is used for outputting a corresponding laser special effect according to the received synchronous time code;
the water show control unit is used for outputting a corresponding water show special effect according to the received synchronous time code;
the wireless network unit is used for constructing a wireless local area network of the system and providing wireless application for the wireless control unit and the wireless time code unit;
the wireless network unit is used for establishing a hot spot of wireless communication; establishing communication connection with one or more terminal devices through the wireless network, and receiving control instructions from the terminal devices and feeding back data information to the terminal devices;
the wireless control unit is used for controlling the playing of system videos, the adjustment of video brightness and the adjustment of music volume through the wireless network unit;
the wireless time code unit is used for receiving the synchronous time code and displaying the synchronous time code through the wireless network unit;
the wireless time code unit is used for receiving the synchronous time code in a wireless signal transmission mode, and converting the synchronous time code into corresponding time prompt information for displaying;
the wireless time code unit is configured with a plurality of mobile terminals according to the occasion requirements, and the color displayed by the time code can be customized;
the video acquisition unit is used for acquiring HDSDI signals and HDMI signals of the computer, preprogramming through video control, and transmitting the video acquisition signals to the display terminal in real time in the video broadcasting unit;
the projector control unit is used for controlling the parameters of all projectors of the display terminal; the parameters comprise power switch, shutter opening and closing and geometric correction;
the projector control unit includes: and the computer for controlling the projector and the wired network are used for controlling the parameters of all the projectors of the display terminal.
2. The system of claim 1, wherein the audio control unit comprises: the system comprises a main sound console, a backup sound console and a multi-channel audio matrix;
synchronously controlling the main sound console and the backup sound console through an MIDI protocol;
the audio control unit provides main and standby input for audio output signals of the main and standby audio workstations and the main and standby video broadcasting servers and provides safe audio signals for the sound system unit;
the main and standby audio signals of the audio playing unit are respectively input to the main and standby sound console and are subjected to cross redundancy backup, wherein the main audio workstation outputs two groups of audio signals, the group A audio signals are accessed to the main sound console, and the group B audio signals are accessed to the standby sound console; the backup audio workstation outputs two groups of audio signals, the group C audio signals are connected to the backup sound console, and the group D audio signals are connected to the main sound console;
the video broadcasting unit comprises a main video broadcasting server group and a backup video broadcasting server group, and the main sound console and the backup sound console are respectively accessed through built-in audio output interfaces and used for providing audio signal redundancy backup.
3. The system of claim 1, wherein the video control unit comprises: the main video control server and the backup video control server have the same functions, the main video control server is online during normal use, the backup video control server is offline, and the backup video control server can be recovered to be normal by performing online operation on the backup video control server when the main video control server fails;
the main video control server and the standby video control server in the video control unit receive the synchronous time code at the same time and control the playing of the video according to the synchronous time code;
the main and standby video control servers in the video control unit are used for arranging the audio and video materials at the early stage, synchronously controlling the video broadcasting unit through a network and uploading the video and audio materials;
the master and standby video control servers in the video control unit are integrated with a wireless network MIDI simulation port based on a software foundation, wherein the early stage is wireless control programming and comprises the following steps: the system has the functions of video chapter section playing, pausing, global video brightness adjustment, custom channel or area video brightness adjustment, system test chart inspection, music volume control, video acquisition control and the like;
when the time code unit fails, the main video control server and the standby video control server in the video control unit can immediately recover the output of the audio and video signals through manual operation.
4. The system of claim 1, wherein the video matrix unit comprises: DVI video matrix hardware, programming and routing video output signals;
the number of DVI video matrixes in the video matrix unit is configured according to the number of system output channels;
the video output in the video matrix unit divides the video signal of each path of the video broadcasting unit into two paths through setting, and respectively outputs the two paths of the video signals to the display terminal and the video pre-monitoring unit;
the DVI video matrix in the video matrix unit is configured according to a 16-path input/16-path output specification, every two video broadcasting servers are taken as a group, the DVI video matrix comprises a main video broadcasting server and a backup video broadcasting server, 8 paths of video signals of a main and a backup video broadcasting server are connected in common, 16 paths of video signals are output, the main and the backup video broadcasting servers transmit 4 paths of output, and the main and the backup pre-monitor 4 paths of output;
DVI video matrix equipment in the video matrix unit is configured with a product with the function of writing EDID information, is used for self-defining ID name and resolution, and provides output port locking for a video broadcasting server so as to prevent random dislocation of port ID numbers after power failure.
5. The system of claim 1, further comprising: a video pre-monitoring unit for pre-monitoring the video,
the video pre-monitoring unit is connected with the video matrix unit and is used for displaying all main and standby video channel pictures;
a plurality of video pictures of the main and standby channels are respectively connected to 2 professional displays through preprogramming and are distinguished by frames with different colors and self-defined Chinese and English channel names;
the video pre-monitoring unit is used for receiving the signal of the time code synchronization unit, decoding and displaying the synchronization time code, uploading a user-defined LOGO, and accessing the clock system to display date and time.
6. The system of claim 1, further comprising: a wireless control unit;
the wireless control unit is used for wirelessly controlling the main video control server and the standby video control server in the video control unit through a wireless network unit;
wherein, be wireless control unit programming earlier stage, with the control function one-to-one correspondence that the video control server set up, include:
the system comprises the functions of video chapter section playing, pausing, global video brightness adjustment, custom channel or region video brightness adjustment, system test chart inspection, music volume control, video acquisition control and the like.
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