4D cinema central control system and device

Abstract

The utility model relates to the technical field of cinema communication signal processing, in particular to a 4D cinema central control system and equipment, which comprises a main control module, a time encoding and decoding module, a communication module and a power supply module, wherein the time coding and decoding module, the communication module and the power supply module are electrically connected with the main control module; the time coding and decoding module is used for acquiring a time code signal of the cinema player; the communication module is used for connecting a plurality of external terminal devices with different interfaces or communication protocols; the power supply module is used for supplying power to system operation; the master control module is used for acquiring signals for coordination processing, so that the technical update and expansion requirements of the 4D cinema can be met more easily, cinema equipment can be managed efficiently, and the equipment connection convenience of the 4D cinema can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of cinema communication signal processing, and in particular to a 4D cinema central control system and equipment. Background Art

[0002] A cinema is a dedicated venue for screening movies, performing plays and other audio-visual programs, usually equipped with high-quality audio equipment and large-screen projection devices, providing the audience with an immersive audio-visual experience. With the continuous progress of technology, cinemas have gradually evolved into different forms. Among them, the 4D cinema is an advanced form of experience. By adding elements such as motion seats, special effect devices such as wind, rain, and flashes, and odor sprayers, the audience can more immersively feel the scenes and plots in the movie.

[0003] However, with the development and popularization of 4D cinemas, some technical challenges and problems have also arisen. Among them, the non-uniformity of communication methods between different devices has become an obvious obstacle. Since each cinema uses different hardware devices and software platforms, there are connection and compatibility problems in cinema management, equipment maintenance, and content update. For example, the motion seats and special effect devices in some cinemas may use specific communication protocols or interfaces, while others use completely different technical standards. Such differences may cause difficulties for cinema managers when integrating new devices or updating the system. The above problems need to be solved. Utility Model Content

[0004] In order to more easily meet the technical update and expansion requirements of 4D cinemas, efficiently manage cinema equipment, and improve the convenience of equipment connection in 4D cinemas, the present application provides a 4D cinema central control system and equipment, adopting the following technical solutions:

[0005] In a first aspect, the present application provides a 4D cinema central control system, including a main control module, a time encoding and decoding module, a communication module, and a power supply module;

[0006] Among them, the time encoding and decoding module, the communication module, and the power supply module are all electrically connected to the main control module;

[0007] The time encoding and decoding module is used to obtain the time code signal of the cinema player; the communication module is used to connect external terminal devices with several different interfaces or communication protocols; the power supply module is used to supply power for the system operation; the main control module is used to obtain signals for coordinated processing.

[0008] Preferably, the communication module includes an Ethernet communication sub-module;

[0009] Among them, the Ethernet communication sub-module is electrically connected to the main control module;

[0010] The Ethernet communication sub-module is used for wirelessly connecting to the host computer and communicating with the host computer.

[0011] Preferably, the communication module further includes a 485 communication sub-module;

[0012] Wherein, the 485 communication sub-module is electrically connected to the main control module;

[0013] The 485 communication sub-module is used for transmitting 485 interaction signals with external terminal devices.

[0014] Preferably, the communication module further includes a CAN communication sub-module;

[0015] Wherein, the CAN communication sub-module is electrically connected to the main control module;

[0016] The CAN communication sub-module is used for transmitting CAN interaction signals with external terminal devices.

[0017] Preferably, the communication module further includes a USB communication sub-module;

[0018] Wherein, the USB communication sub-module is electrically connected to the main control module;

[0019] The USB communication sub-module is used for transmitting USB interaction signals with external terminal devices.

[0020] Preferably, the communication module further includes a self-transceiving sub-module;

[0021] Wherein, the self-transceiving sub-module is electrically connected to the 485 communication sub-module;

[0022] The self-transceiving sub-module is used for automatically switching the 485 communication sub-module to the receiving signal mode or the transmitting signal mode.

[0023] Preferably, the CAN communication sub-module is provided with a first signal receiving end and a second signal receiving end, and the first signal receiving end and the second signal receiving end adopt differential wiring.

[0024] Preferably, the time encoding and decoding module includes a signal amplification and screening sub-module;

[0025] The signal amplification and screening sub-module is electrically connected to the main control module;

[0026] The signal amplification and screening sub-module is used for the time code signal of the cinema player and amplifying and screening the time code signal.

[0027] Preferably, the time encoding and decoding module further includes a signal isolation sub-module;

[0028] The signal isolation sub-module is electrically connected to the output end of the signal amplification and screening sub-module, and the signal isolation sub-module is electrically connected to one of the input ends of the main control module;

[0029] The signal isolation sub-module is used to isolate the abnormal signals output by the signal amplification and screening sub-module.

[0030] In a second aspect, the present application provides a 4D cinema central control device, including the 4D cinema central control system as described above.

[0031] In summary, compared with the prior art, the beneficial effects brought by the technical solution provided by the present application at least include:

[0032] In the present application, the main control module coordinates and processes the acquired signals, the power supply module supplies power for the system operation, the time encoding and decoding module acquires the time code signal of the cinema player and then transmits it to the main control module. After processing, the main control module converts the time code signal into a format that can be transmitted in an Internet manner, and the communication module transmits the signal to the upper computer for processing. After being processed into a format that can be received by the corresponding external terminal device, it returns to the communication module. The processing module then sends the time code signal in this format and the execution instruction matched by the upper computer to the communication module, and thus sends it to the external terminal device in the corresponding format, so that the 4D cinema central control system can connect more external devices with different protocols or interfaces, is more likely to meet the technical update and expansion requirements of the 4D cinema, efficiently manages the cinema equipment, and improves the equipment connection convenience of the 4D cinema. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic diagram of the modules of a 4D cinema central control system according to an embodiment of the present application.

[0034] Figure 2 is a schematic diagram of the modules of the time encoding and decoding module according to an embodiment of the present application.

[0035] Figure 3 is a schematic diagram of the modules of the communication module according to an embodiment of the present application.

[0036] Figure 4 is a schematic diagram of the modules of the self-transceiving sub-module according to an embodiment of the present application.

[0037] Description of the reference numerals:

[0038] 1. Main control module; 2. Time encoding and decoding module; 21. Signal amplification and screening sub-module; 22. Signal isolation sub-module; 3. Communication module; 31. Network port communication sub-module; 32. 485 communication sub-module; 33. CAN communication sub-module; 34. USB communication sub-module; 35. Self-transceiving sub-module; 4. Power supply module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The following will further elaborate on this application in conjunction with Figures 1-4 This is merely for the purpose of describing specific embodiments and is not intended to limit the terms used in the embodiments of this application.

[0040] Referring to Figure 1 , a 4D cinema central control system involved in this application specifically includes a main control module 1, a time encoding and decoding module 2, a communication module 3, and a power supply module 4;

[0041] Among them, the time encoding and decoding module 2, the communication module 3, and the power supply module 4 are all electrically connected to the main control module 1;

[0042] The time encoding and decoding module 2 is used to obtain the time code signal of the cinema player; the communication module 3 is used to connect external terminal devices with several different interfaces or communication protocols; the power supply module 4 is used to supply power for the system operation; the main control module 1 is used to obtain signals for coordinated processing.

[0043] Specifically, this application coordinates and processes the signals obtained from the time encoding and decoding module 2 and the communication module 3 through the main control module 1, and the power supply module 4 supplies power for the system operation. After the time encoding and decoding module 2 obtains the time code signal of the cinema player, it transmits it to the main control module 1. The time code signal is used to determine which moment the movie is playing, so as to determine whether physical operations required by the 4D cinema need to be executed. The physical operations are completed by external terminal devices such as 4D seats, lighting devices, water sprayers, and bubble machines that simulate the effects presented in the movie. The system devices of this application need to send corresponding instructions to the above-mentioned external terminal devices or receive the completion information sent by them, so as to cooperate with the external devices to achieve the entire operation process.

[0044] After being processed, the main control module 1 converts the time code signal into a format that can be transmitted via the Internet, and the communication module 3 transmits the signal to the host computer for processing. After being processed into a format that the corresponding external terminal device can receive, it returns to the communication module 3. The processing module then sends the time code signal in this format and the execution instructions matched by the host computer to the communication module 3, and then sends them to the external terminal device in the corresponding format, so that the 4D cinema central control system can connect more external devices with different protocols or interfaces, more easily meet the technical update and expansion requirements of the 4D cinema, efficiently manage the cinema equipment, and improve the equipment connection convenience of the 4D cinema.

[0045] Among them, the main control module 1 specifically includes but is not limited to a circuit module using the STM32F107VCT6 controller chip. The main control module 1 provides processing capabilities and rich peripheral interfaces for the system, supports multiple communication protocols and is used for high-speed data processing.

[0046] As one of the implementation manners, the time encoding and decoding module 2 includes a signal amplification and screening sub-module 21; the signal amplification and screening sub-module 21 is electrically connected to the main control module 1; the signal amplification and screening sub-module 21 is used for the time code signal of the cinema player and amplifies and screens the time code signal.

[0047] Specifically, referring to Figure 2 , the time encoding and decoding module 2 is specifically a circuit module for obtaining the LTC time code. The LTC time code, Linear Timecode, is a time code standard for audio and video device synchronization and control, and is usually applied to fields such as film production, broadcasting, television production, and audio recording. The signal amplification and screening sub-module 21 is specifically a circuit module for signal amplification and screening. The time code signal is sent from an external cinema player to the device system, and is obtained by the signal amplification and screening sub-module 21 in the system. The signal amplification and screening sub-module 21 is specifically an amplification and screening circuit using an LM393 comparator. When using the LM393 circuit for signal amplification, it is achieved through the output of the comparator. For example, the input signal is compared with a fixed reference voltage. When the input signal exceeds or is lower than the reference voltage, the output state of the comparator changes, usually outputting a high level or a low level. The output signal can be further amplified or processed to screen out the signals that do not meet the standards transmitted by the cinema player, and amplify and process the appropriate signals to achieve the effects of amplification and screening.

[0048] As one of the implementation manners, the time encoding and decoding module 2 further includes a signal isolation sub-module 22; the signal isolation sub-module 22 is electrically connected to the output end of the signal amplification and screening sub-module 21, and the signal isolation sub-module 22 is electrically connected to one of the input ends of the main control module 1; the signal isolation sub-module 22 is used for isolating the abnormal signals output by the signal amplification and screening sub-module 21.

[0049] Specifically, the signal isolation sub-module 22 is specifically a 6N137 circuit module to achieve signal isolation protection.

[0050] At the output of the LM393 as a comparator, the 6N137 circuit module obtains the output digital signal. The connection between the output end of the LM393 and the input end of the 6N137 is isolated by an optocoupler, thus effectively isolating the electrical connection between the two circuits. Reducing potential problems caused by factors such as electrical noise, different ground loops, or potential differences, such as ground loop noise and voltage interference.

[0051] The 6N137 circuit of the signal isolation sub-module 22 protects the main control circuit from potential interference or high-level signals from the LM393. Through optical isolation, even in the case of a failure or abnormality in the LM393 circuit, the main control circuit will not be directly affected, thus improving the stability and reliability of the overall system.

[0052] As one of the implementation manners, the communication module 3 includes an Ethernet communication sub-module 31; wherein, the Ethernet communication sub-module 31 is electrically connected to the main control module 1; the Ethernet communication sub-module 31 is used for wirelessly connecting to a host computer and communicating with the host computer.

[0053] Specifically, referring to Figure 3 , the step of matching the time code signal with the time point instruction information of the corresponding movie is completed by the host computer. The Ethernet communication sub-module 31 is specifically a circuit module using a DP83848IV network chip and adopts an RMII connection mode. RMII is a media independent interface used for data transmission between the Ethernet MAC layer and the PHY layer. In the RMII mode, communication between a PHY chip, such as DP83848IV, and a MAC chip, such as a processor or a network controller, is carried out through 4 data lines, namely TXD0 / 1 and RXD0 / 1, as well as a shared clock line and a control line.

[0054] After receiving the amplified and filtered time code signal from the Ethernet communication sub-module 31, the host computer sends the execution instruction signal to the Ethernet communication sub-module 31 for reception according to the execution instruction signal corresponding to the time code signal. The execution instruction signal is usually set to include the formats that can be transmitted by other communication sub-modules of this system, such as the signal formats related to the 485 module, the signal formats related to the CAN module, and the signal modes related to the USB module. The execution instruction signal is sent to the main control module 1, and the main control module 1 then distributes it to each corresponding communication sub-module, so as to output to the corresponding external terminal device to execute the corresponding action.

[0055] The input of a 50 MHz clock signal provides a clock signal for the DP83848IV to improve the accuracy and stability of Ethernet communication.

[0056] Differential pair wiring is a high-speed signal transmission technology used to reduce electromagnetic interference EMI on the signal lines of a circuit module, improve signal integrity and anti-interference ability. During signal transmission, especially in high-speed communication such as Ethernet communication, differential pair wiring effectively reduces signal attenuation and crosstalk and improves the high-quality transmission of data.

[0057] As one of the implementation manners, the communication module 3 further includes a 485 communication sub-module 32; wherein, the 485 communication sub-module 32 is electrically connected to the main control module 1; the 485 communication sub-module 32 is used for transmitting 485 interaction signals with an external terminal device.

[0058] Specifically, in the embodiments of the present application, one of the external terminal devices, such as a 4D seat, transmits signals at the transceiver end through 485 interaction signals. After the main control module 1 receives the time code signal matching the execution instruction, it is sent to the 4D seat through the 485 communication sub-module 32, so that the 4D seat can execute actions according to the matched execution instruction information. The 485 communication sub-module 32 is specifically an RS485 circuit. RS485 is a commonly used serial communication standard, often used in fields such as industrial control and data acquisition.

[0059] As one of the implementation manners, the communication module 3 further includes a self-transceiving sub-module 35; wherein, the self-transceiving sub-module 35 is electrically connected to the 485 communication sub-module 32; the self-transceiving sub-module 35 is used to automatically switch the 485 communication sub-module 32 to the signal receiving mode or the signal sending mode.

[0060] Specifically, referring to Figure 4 , in the embodiments of the present application, the self-transceiving sub-module 35 is specifically a circuit module using a 74HCO4D chip, which can automatically switch the sending and receiving functions according to the activities on the bus without an external control signal, detect whether there is signal activity on the bus, and then automatically adjust its own working state. The automatic switching transceiver circuit uses an automatic control circuit or an automatic detection circuit to monitor the signal activity on the bus. When it detects that there is no signal activity on the bus, the circuit automatically switches to the sending mode; when it detects signal activity, it automatically switches to the receiving mode to receive signals from other nodes. The automation ability of the self-transceiving sub-module 35 can reduce the complexity of external control and improve the flexibility, reliability and stability of the 485 communication sub-module 32.

[0061] As one of the implementation manners, the communication module 3 further includes a CAN communication sub-module 33; wherein, the CAN communication sub-module 33 is electrically connected to the main control module 1; the CAN communication sub-module 33 is used to transmit CAN interaction signals with the external terminal device.

[0062] Specifically, in the embodiments of the present application, the CAN communication sub-module 33 is specifically a circuit module using a TJA1050 chip. TJA1050 is an interface between the controller area network CAN protocol controller and the physical bus, providing differential transmission ability for the bus and differential reception ability for the CAN circuit. By connecting the external terminal device with the corresponding transmission method through the CAN communication sub-module 33, the function of controlling one or more external terminal devices to execute actions in real time according to the time code signal is realized.

[0063] As one of the implementation manners, the CAN communication sub-module 33 is provided with a first signal receiving end and a second signal receiving end, and the first signal receiving end and the second signal receiving end adopt differential wiring.

[0064] Specifically, the first signal receiving end is CANH of the CAN communication sub-module 33, and the second signal receiving end is CANL of the CAN communication sub-module 33, and differential wiring is adopted. The differential wiring method helps to improve the anti-interference ability and transmission distance. In CAN communication, the signal is transmitted through a pair of wires, namely CANH and CANL. These two wires are respectively used to transmit complementary signals, that is, the voltage transmitted by the CANH wire is higher than that of the CANL wire, or the CANH wire is lower than the CANL wire. This differential signal transmission method improves the anti-interference ability of the CAN bus, thus resisting electromagnetic interference and noise, and improving the stability of the system.

[0065] As one of the implementation manners, the communication module 3 further includes a USB communication sub-module 34; wherein, the USB communication sub-module 34 is electrically connected to the main control module 1; the USB communication sub-module 34 is used to transmit USB interaction signals with external terminal devices.

[0066] Specifically, in the embodiment of the present application, the USB communication sub-module 34 at least includes circuit modules of USB-A and USB-B, so that devices using USB wiring to transmit signals can interact with the system.

[0067] The embodiment of the present application provides a 4D cinema central control device, and the system includes the 4D cinema central control system as described above.

[0068] Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the above-described devices and products can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein again.

[0069] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, program products, etc. can be implemented in other ways.

[0070] In addition, in each embodiment of the present application, each functional unit can be integrated in one processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0071] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of each embodiment of the present application.

Claims

1. A 4D cinema central control system, characterized in that, It includes a main control module, a time encoding and decoding module, a communication module, and a power supply module; Among them, the time encoding and decoding module, the communication module, and the power supply module are all electrically connected to the main control module; The time encoding and decoding module is used to obtain the time code signal of the cinema player; The communication module is used to connect external terminal devices with several different interfaces or communication protocols; The power supply module is used to supply power for the system operation; the main control module is used to obtain signals for coordinated processing; The main control module is used to convert the time code signal into an Internet format and transmit it to the host computer through the communication module; The host computer is used to match the time code signal with the execution instruction and then send it to the external terminal device through the communication module.

2. The central control system of the 4D cinema according to claim 1, wherein The communication module includes an Ethernet communication sub-module; Among them, the Ethernet communication sub-module is electrically connected to the main control module; The Ethernet communication sub-module is used to wirelessly connect to the host computer and communicate with the host computer.

3. The 4D cinema central control system according to claim 2, wherein, The communication module also includes a 485 communication sub-module; Among them, the 485 communication sub-module is electrically connected to the main control module; The 485 communication sub-module is used to transmit 485 interaction signals with external terminal devices.

4. The 4D cinema central control system according to claim 2, characterized in that, The communication module also includes a CAN communication sub-module; Among them, the CAN communication sub-module is electrically connected to the main control module; The CAN communication sub-module is used to transmit CAN interaction signals with external terminal devices.

5. The central control system of the 4D cinema according to claim 2, characterized in that, The communication module also includes a USB communication sub-module; Among them, the USB communication sub-module is electrically connected to the main control module; The USB communication sub-module is used to transmit USB interaction signals with external terminal devices.

6. The 4D cinema central control system according to claim 3, wherein The communication module also includes a self-transceiving sub-module; Among them, the self-transceiving sub-module is electrically connected to the 485 communication sub-module; The self-transceiving sub-module is used to automatically switch the 485 communication sub-module to the signal receiving mode or the signal sending mode.

7. The 4D cinema central control system according to claim 4, wherein The CAN communication sub-module is provided with a first signal receiving end and a second signal receiving end, and the first signal receiving end and the second signal receiving end adopt differential wiring.

8. The central control system of the 4D cinema according to claim 1, wherein The time encoding and decoding module includes a signal amplification and screening sub-module; The signal amplification and screening sub-module is electrically connected to the main control module; The signal amplification and screening sub-module is used to obtain the time code signal of the cinema player and amplify and screen the time code signal.

9. The central control system for a 4D cinema according to claim 8, wherein, The time encoding and decoding module also includes a signal isolation sub-module; The signal isolation sub-module is electrically connected to the output end of the signal amplification and screening sub-module, and the signal isolation sub-module is electrically connected to one of the input ends of the main control module; The signal isolation sub-module is used to isolate the abnormal signal output by the signal amplification and screening sub-module.

10. A central control device for a 4D cinema, characterized in that, A 4D cinema central control system including any one of claims 1-9.

Images