Intelligent audio and video system, control method and device thereof and medium

Abstract

The embodiment of the invention provides a smart audio and video system. The smart audio and video system comprises a cabinet, and functional equipment, power supply equipment and main control equipment which are integrated in the cabinet and are in communication connection with one another, the main control device is configured to generate multimedia control instructions which are used for multi-path multimedia playing and correspond to different power consumptions, wherein the multimedia playing comprises at least one of audio playing, video playing and video monitoring; and transmitting the multimedia control instruction to at least one audio / video interface of the functional equipment.

Description

Technical Field

[0001] This specification relates to the technical field of audio - visual equipment, and particularly to an intelligent audio - visual system, its control method, device and medium for a HALF RACK miniaturized cabinet based on AOIP technology, which is applicable to scenarios such as conference systems, whole - house audio - video, video surveillance, etc. Background Art

[0002] Currently, FULL RACK devices (full - rack devices) are widely used, while there is no industry standard for HALF RACK devices (half - rack devices). The demand for miniaturized and modular devices is increasing day by day. Especially in scenarios such as intelligent commerce, home audio - video, and conferences, traditional large - scale devices have large space occupancy, complex wiring, and difficult power supply, making it difficult to meet the requirements of flexible deployment and system integration.

[0003] At the same time, traditional audio - visual systems usually adopt FULL RACK (19 - inch) cabinets with EIA standards (Electronic Industries Alliance Standards), which not only occupy a large amount of space, are complex and time - consuming to install, but also have contradictions in scenario adaptability, device compatibility issues in different application scenarios (such as conference / audio - video / surveillance, etc.), and limited system scalability.

[0004] In addition, there are also problems such as difficult maintenance due to scattered devices, lack of intelligent management means, inability to achieve real - time monitoring of device status and real - time update of playback parameters, resulting in low operation and maintenance efficiency; and there are defects such as poor heat dissipation effect and complicated wiring.

[0005] Therefore, it is hoped to propose an intelligent audio - visual system, its control method, device and medium with advantages such as modularity, ultra - miniaturization, portability, and expandability, to achieve multi - dimensional optimization of space, efficiency, performance, and scalability. Summary of the Invention

[0006] One or more embodiments of this specification provide an intelligent audio - visual system, including a cabinet, and functional devices, power supply devices, and main control devices that are integrated inside the cabinet and communicate with each other; the main control device is configured to: generate multimedia control instructions for multi - path multimedia playback and corresponding to different power consumptions, where the multimedia playback includes at least one of audio playback, video playback, and video surveillance; and transmit the multimedia control instructions to at least one audio - visual interface of the functional devices.

[0007] One or more embodiments of this specification provide a control method for a smart audio - video system. The smart audio - video system includes a cabinet, and functional devices, a power supply device, and a main control device that are integrated inside the cabinet and communicate with each other. The control method is executed based on the main control device, and the control method includes: generating multimedia control instructions for multi - channel multimedia playback and corresponding to different power consumptions, where the multimedia playback includes at least one of audio playback, video playback, and video monitoring; and transmitting the multimedia control instructions to at least one audio - video interface of the functional devices.

[0008] One or more embodiments of this specification provide a control device for a smart audio - video system. The device includes at least one processor and at least one memory. The at least one memory is used to store computer instructions. The at least one processor is used to execute at least some of the computer instructions to implement the control method of the smart audio - video system as described above.

[0009] One or more embodiments of this specification provide a computer - readable storage medium. The storage medium stores computer instructions. When a computer reads the computer instructions in the storage medium, the computer executes the control method of the smart audio - video system as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] This specification will be further described by way of exemplary embodiments, which will be described in detail through the drawings. These embodiments are not restrictive. In these embodiments, the same numbers represent the same structures, where:

[0011] Figure 1 is a schematic diagram of the application scenario of the smart audio - video system shown according to some embodiments of this specification;

[0012] Figure 2 is an exemplary schematic diagram of the smart audio - video system shown according to some embodiments of this specification;

[0013] Figure 3 is an exemplary flowchart of the control method of the smart audio - video system shown according to some embodiments of this specification;

[0014] Figure 4 is an exemplary schematic diagram of determining the preferred position of the fan shown according to some embodiments of this specification;

[0015] Figure 5 is an exemplary schematic diagram of determining the optimal rotation speed of the fan shown according to some embodiments of this specification. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To more clearly illustrate the technical solutions of the embodiments of this specification, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some examples or embodiments of this specification. For those of ordinary skill in the art, without creative efforts, this specification can also be applied to other similar scenarios based on these drawings. Unless obvious from the language context or otherwise stated, the same reference numerals in the drawings represent the same structure or operation.

[0017] It should be understood that the "system", "device", "unit", and / or "module" used herein is a way to distinguish different components, elements, parts, portions, or assemblies at different levels. However, if other words can achieve the same purpose, the said words can be replaced by other expressions.

[0018] As shown in this specification and the claims, unless the context clearly indicates an exceptional situation, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0019] Flowcharts are used in this specification to illustrate the operations performed by the system according to the embodiments of this specification. It should be understood that the operations before or after may not be executed precisely in sequence. On the contrary, they can be executed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or one or several operations can be removed from these processes.

[0020] With the deep penetration of intelligent scenarios and the explosive growth of digital audio and video technologies, modern audio and video systems are facing unprecedented challenges. In the fields of smart home, in-vehicle cockpit, business meetings, multi-scenario live broadcasts, and industrial broadcasts, users' requirements for audio and video systems have shifted from single playback to multi-scenario dynamic adaptation: they need to meet the independent audio distribution requirements of multiple regions and multiple terminals in complex environments, and at the same time avoid problems such as complex deployment and rigid expansion. Therefore, there is an urgent need for a new type of intelligent audio and video system that combines space compression, agile deployment, and elastic expansion to achieve multi-dimensional optimization of space, efficiency, performance, and scalability.

[0021] Figure 1 It is a schematic diagram of application scenario 100 of the intelligent audio and video system shown in some embodiments of this specification.

[0022] In some embodiments, the application scenario 100 of the intelligent audio and video system may include an intelligent audio and video system 110, a processor 120, a network 130, a storage device 140, and a user terminal 150.

[0023] The intelligent audio - video system 110 is an audio - video system that integrates artificial intelligence, edge computing, and multi - channel signal processing technologies. It can achieve intelligent audio - video playback in multiple regions, real - time monitoring, and intelligent home control, etc. For more descriptions about the intelligent audio - video system 110, please refer to Figure 2 the corresponding content.

[0024] The processor 120 can be used to process information and / or data related to the application scenario 100 of the intelligent audio - video system. For example, the running time, running status, etc. of the audio devices in the intelligent audio - video system. In some embodiments, the processor 120 can process data, information, and / or processing results obtained from other devices or system components, and execute program instructions based on these data, information, and / or processing results to perform one or more functions described in this specification.

[0025] In some embodiments, the processor 120 can include one or more sub - processing devices (e.g., a single - core processing device or a multi - core multi - chip processing device). By way of example only, the processor 120 can include a central processing unit (CPU), an application - specific integrated circuit (ASIC), a microprocessor, etc., or any combination thereof. In some embodiments, the processor 120 can be a cloud server. In some embodiments, the processor 120 can also be integrated into the intelligent audio - video system 110.

[0026] The network 130 can include any network capable of facilitating information and / or data exchange. In some embodiments, one or more components of the application scenario 100 of the intelligent audio - video system (e.g., the intelligent audio - video system 110, the processor 120, the storage device 140, the user terminal 150, etc.) can exchange information and / or data through the network 130.

[0027] In some embodiments, the network 130 can be any one or more of a wired network or a wireless network. For example, the network 130 can include a cable network, an optical fiber network, a telecommunications network, etc., or any combination thereof. The network connection between various parts can be in one of the above - mentioned ways or in multiple ways. Also, for example, the network 130 can be a public network (such as a meeting room, a shopping mall, etc.) or an internal local area network, etc.

[0028] By way of example only, the storage device 140, the user terminal 150, and the processor 120 (such as a cloud server) can be communicatively connected based on a wireless network to obtain control signals, etc. The intelligent audio - video system 110 can be communicatively connected to a router based on a wired network, and then communicatively connected to a cloud server based on the router.

[0029] The storage device 140 can store data, instructions, and / or any other information. The storage device 140 can include one or more storage components, and each storage component can be an independent device or a part of other devices. In some embodiments, the storage device 140 can include a random access memory (RAM), a read-only memory (ROM), a removable memory, etc., or any combination thereof. In some embodiments, the storage device 140 can be connected to the network 130 to enable communication with one or more components in the application scenario 100 of the intelligent audio-visual system.

[0030] In some embodiments, the processor 120 and / or the storage device 140 can be integrated into the intelligent audio-visual system 110.

[0031] The user terminal 150 refers to one or more terminal devices or software used by the user. The user can refer to the operator or manager of the intelligent audio-visual system. In some embodiments, the user terminal 150 can interact with other components (such as the intelligent audio-visual system 110, the processor 120, etc.) in the application scenario 100 through the network 130. For example, the user terminal 150 can obtain its operating status, etc. from the intelligent audio-visual system 110 through the network 130. The above examples are only used to illustrate the wide range of the user terminal 150 device rather than limiting its scope.

[0032] In some embodiments, the user terminal 150 can include a mobile device 151 (such as a smart phone), a tablet computer 152, a laptop computer 153, etc., or any combination thereof.

[0033] In some embodiments, the user terminal 150 can include a display component (for example, a display screen, etc.), an interaction component (for example, a mouse, a keyboard, a touch screen, etc.), etc.

[0034] In some embodiments, the application scenario 100 can be any scenario that requires at least one function among audio-visual playback, monitoring playback, smart home control, etc. In different scenarios, the specific devices included in the intelligent audio-visual system 110 can be the same or different. For specific descriptions, please refer to Figure 2 the corresponding content. After completing the configuration of the intelligent audio-visual system 110, the user can control the intelligent audio-visual system through the APP of user terminals such as mobile devices, tablet computers, and laptop computers.

[0035] Taking the audio - video playback scenario as an example, the user can set the volume of a speaker and partition different rooms based on the user terminal. Among them, different partitions or different rooms can play different sound sources. The user can also perform processing such as DSP (Digital Signal Processing) mixing on the audio signals of one or more sound sources according to requirements. Another example is that in the video surveillance scenario, the user can also view the real - time monitoring images through a user terminal such as a tablet computer.

[0036] It should be noted that the application scenarios are provided only for illustrative purposes and are not intended to limit the scope of this specification. For those of ordinary skill in the art, various modifications or changes can be made according to the description of this specification. For example, the application scenarios can also include cloud computing platforms. Another example is that the application scenarios can be implemented on other devices to achieve similar or different functions. However, the changes and modifications will not deviate from the scope of this specification.

[0037] Figure 2 It is an exemplary schematic diagram of an intelligent audio - video surveillance system shown according to some embodiments of this specification.

[0038] In some embodiments, as Figure 2 shown, the intelligent audio - video surveillance system 110 can include a cabinet 11 and functional devices 13, a power supply device 14, and a main control device 12 that are integrated inside the cabinet 11 and communicate with each other.

[0039] A cabinet refers to a device used for integrally installing multiple components. For example, the cabinet can be a cabinet body provided with one or more accommodation cavities. In some embodiments, the accommodation cavities inside the cabinet can be changed according to actual needs, such as adding or reducing partitions to increase or decrease the cavities.

[0040] In some embodiments, the cabinet can be customized according to specific usage requirements. For example, different devices can be stacked in the height direction. At the same time, devices can be integrated on both the front and back of the cabinet. For example, the width of the cabinet can be determined based on the width of the device with the largest width among its internal devices, and the remaining devices with smaller widths can be stacked in the width direction to improve the space utilization rate of the cabinet. More descriptions about cabinet design can be found in the corresponding content later.

[0041] In some embodiments, an interface wiring panel (not shown in the figure) is also designed on the cabinet. The interface wiring panel can provide various types of interfaces, enabling the intelligent audio - video system to be connected to external devices through multiple connection methods.

[0042] In some embodiments, the interface cable panel can also adopt a modular knock-out hole design, in which a variety of different types of interfaces can be installed to achieve flexible customization of the interface layout. In some embodiments, the interface cable panel is also designed with one or more cable holes, which can be used to insert various cables to reduce the complexity of the panel interface and achieve rapid connection between external devices and internal devices of the cabinet and between internal devices.

[0043] In some embodiments, a cascade interface for communicating with other cabinets can also be set on the cabinet to realize communication connection between multiple smart audio and video systems or cabinets and realize distributed networking.

[0044] In some embodiments, the functional device, the power supply device, and the main control device may use a mechanical interface of uniform size to achieve quick connection while reducing wiring complexity.

[0045] Functional devices refer to specific devices used to implement the functions required by the application scenarios corresponding to the smart audio and video system. For example, taking the smart home control scenario as an example, the functional devices may include an Ethernet power supply switch, an IoT box, etc. Taking the audio and video playback or video monitoring scenario as an example, the functional devices may include an Ethernet power supply switch 112 and a high-definition multimedia interface matrix 113, etc.

[0046] The high definition multimedia interface matrix may also be referred to as an HDMI (High Definition Multimedia Interface) matrix (hereinafter referred to as an HDMI matrix), which can be used for audio and video signal processing to ensure flexible switching and seamless transmission of audio signals between HDMI devices in a usage scenario. In some embodiments, the high definition multimedia interface matrix includes multiple data interfaces, each of which can be electrically connected to one or more playback devices.

[0047] The Ethernet power supply switch can also be called a PoE (Power Over Ethernet) switch (hereinafter referred to as a PoE switch), which can be used to realize data transmission and power supply between devices. For example, the PoE switch can communicate with the main control device, HDMI matrix, and external communication devices (such as routers). In some embodiments, the PoE switch includes at least one set of redundant network ports for backup, which can improve system stability.

[0048] The power supply device refers to a device used to transmit electric energy to other devices. For example, the power supply device can supply power to functional devices. In some embodiments, the power supply device can be implemented based on the remote power manager 111 .

[0049] The remote power manager can also be referred to as an intelligent PDU (Power Distribution Unit) (hereinafter simply referred to as the intelligent PDU). The intelligent PDU includes a power supply and distribution interface, which can be used to provide and distribute the power required by each device in the intelligent audio and video system.

[0050] The master device is the master control device of the intelligent audio and video system. In some embodiments, the master device includes a processor and is configured with multiple audio input interfaces, which can support the input of analog audio signals or digital audio signals. At the same time, the master device can also integrate signal processing algorithms such as DSP (Digital Signal Processing) processing and signal mixing; support network audio transmission protocols such as AES67 or Dante (Digital Audio Network Through Ethernet), and can realize the multi-region transmission control of audio signals.

[0051] In some embodiments, the functions implemented by the master device are different according to the different processors installed. Only as an example, when the master device is configured with an intelligent network audio processor for music control, it can realize the functions of conference and background music control; when it is equipped with an intelligent network audio and video processor for audio and video control, it can realize the functions of whole-house intelligent audio and video control; when it is equipped with an intelligent network audio and video processor for corresponding monitoring and management, it can realize the control functions including monitoring and other audio and video.

[0052] In some embodiments, the master device can obtain external audio and video signals based on functional devices such as a PoE switch, such as analog audio signals or digital audio signals, etc. Only as an example, the master device processes the obtained external audio and video signals based on various signal processing algorithms, and transmits the processed audio and video signals to the HDMI matrix or PoE switch based on the network audio and video transmission protocol. The HDMI matrix or PoE switch transmits the audio and video signals to the corresponding playback device for playback according to the playback requirements, realizing the centralized control, distribution, and synchronization management of audio and video signals. For further description of the communication connection relationships between devices in different scenarios, please refer to the corresponding content later.

[0053] In some embodiments, the master device is configured to: generate multimedia control instructions for multiplex multimedia playback and corresponding to different power consumptions, and transmit the multimedia control instructions to at least one audio interface in the functional device.

[0054] In some embodiments, the intelligent audio and video system further includes a fan, and the fan is controlled based on the master device.

[0055] In some embodiments, the master device is further configured to: generate a preferred position of the fan according to the temperature sensing data and issue a prompt to the user.

[0056] In some embodiments, the master device is further configured to: predict a future power sequence; based on the temperature sensing data and the future power sequence, generate a preferred position of the fan through a position determination model.

[0057] In some embodiments, the master device is further configured to: determine an optimal rotation speed of the fan based on the temperature sensing data obtained by combining with an external temperature sensing unit and the current power, and retrieve a preset query table to determine the optimal rotation speed of the fan.

[0058] In some embodiments, the master device is further configured to: determine an optimal rotation speed of the fan based on the temperature sensing data obtained from an external temperature sensing unit and the current power, and control the fan to operate based on the optimal rotation speed of the fan.

[0059] In some embodiments, the master device may be built-in with recognition and conversion algorithms for multiple audio protocols. For example, digital audio interface protocol recognition algorithms for protocol recognition, network audio protocol recognition algorithms, analog signal detection algorithms, etc., and sampling rate conversion algorithms, bit depth conversion algorithms, network audio stream conversion algorithms, etc. for protocol conversion.

[0060] In some embodiments, the master device may also be built-in with a network QoS (Quality of Service) management program, and the network QoS management program may be configured to: generate a priority transmission mark for the audio stream and the video stream. The priority transmission mark may instruct the HDMI matrix and the PoE switch to transmit the audio stream and the video stream with a specific priority to ensure the priority of the audio and video traffic.

[0061] In some embodiments, the master device is further configured to: identify the current scene; according to the current scene, determine a target working mode and operate based on the target working mode, including:

[0062] S1: In response to the current scene being a meeting scene, determine the first working mode as the target working mode; and operate based on the first working mode.

[0063] In some embodiments, running based on the first working mode includes: identifying echo and noise in the audio stream, and eliminating and suppressing the echo and noise. For example, based on methods such as Time Delay Estimation (TDE), Echo Path Modeling (EPA), and Double-Talk Detection (DTD), echo identification can be achieved. Based on methods such as Linear Echo Cancellation (LEC), Nonlinear Echo Cancellation (NEC), and Residual Echo Suppression (RES), echo cancellation can be achieved. Based on methods such as Minima Controlled Recursive Averaging (MCRA), noise identification can be achieved, and based on methods such as adaptive filtering, noise suppression can be achieved.

[0064] S2: In response to the current scenario being a video and audio scenario, determine the second working mode as the target working mode; run based on the second working mode.

[0065] In some embodiments, running based on the second working mode includes: compressing the audio stream and the video stream at a preset compression rate (the preset compression rate is lower than a preset threshold to achieve high fidelity); and, based on the audio stream and the video stream, determining the delay value in real time; according to the delay value, adjusting the bandwidths of each port (such as the port for transmitting audio and the port for transmitting video) in the PoE switch to achieve delay reduction. Among them, the master device can determine the delay value based on methods such as the synchronization method of timestamps.

[0066] S3: In response to the current scenario being a monitoring scenario, determine the third working mode as the target working mode; run based on the third working mode.

[0067] In some embodiments, running based on the third working mode includes: obtaining operation data in real time, and detecting abnormal events based on the operation data in real time.

[0068] In some embodiments, the master device is built-in with an externally provided API (Application Programming Interface) interface, which can achieve the expansion of software or programs and support the integration of third-party systems.

[0069] In some embodiments, the master device is built-in with an externally provided remote management interface. The intelligent audio and video system can perform cloud management and remote maintenance through this remote management interface, such as system upgrade and fault diagnosis through the Internet.

[0070] In some embodiments, the master device is further configured to: collect in real time the power, voltage, or current data of the PoE switch and HDMI connected to each power supply port from the intelligent PDU, and in response to meeting the adjustment trigger condition, control the intelligent PDU to adjust the power supply voltage, current, or power of at least one power supply port, and / or cut off the power supply circuit where at least one power supply port is located.

[0071] Among them, the adjustment trigger condition may be that the voltage or current data is abnormal. For example, the voltage or current exceeds the normal tolerance range of the device, or the power of a certain device is too low or too high, etc.

[0072] For more descriptions of the functions of the master device, see Figures 3 - 5 the corresponding content.

[0073] In some embodiments, as Figure 2 shown, the intelligent audio-visual system further includes an audio-visual panel 115, and the audio-visual panel can be used to provide interfaces for input and output of audio-visual signals, etc.

[0074] In some embodiments, taking the application of the intelligent audio-visual system in meeting scenarios such as business meetings and administrative meetings as an example, the audio-visual panel can be installed at a fixed position such as on the wall of the meeting room. In some embodiments, the output end of the audio-visual panel can be electrically connected to the input end of the master device. The input end of the audio-visual panel can be connected to a sound source device (such as a user terminal, etc.).

[0075] In some embodiments, as Figure 2 shown, the intelligent audio-visual system further includes a microphone device 116, and the microphone device refers to a device that communicates with the intelligent audio-visual system for audio signals. In some embodiments, the microphone device may include one or more wired or wireless microphones and their combinations, among which at least a pair of wireless microphones or gooseneck microphones are included in the microphone device, and each microphone is independently set. Taking the meeting scenario as an example, by setting the microphone device, it is possible to facilitate the collection of the speech audio at the meeting site.

[0076] In some embodiments, the microphone device can be electrically connected to the master device (such as an intelligent network audio processor). In some embodiments, if a receiver is provided in the intelligent audio-visual system, the microphone device can be electrically connected to the input end of the receiver, and the receiver can be electrically connected to the master device.

[0077] In some embodiments, as Figure 2As shown, the intelligent audio - video system further includes a playback device 114. A playback device refers to a device that plays audio - video signals. In some embodiments, the playback device may include one or more speaker devices. For example, ceiling speakers, or wall - mounted / desktop speakers, subwoofers and other audio devices. In some embodiments, depending on the application scenario, the playback device may also include other audio playback devices, such as car speakers. In some embodiments, the playback device may also include a desktop monitor and other video playback devices.

[0078] In some embodiments, the playback device can be deployed in multiple audio - video playback areas in the working area of the intelligent audio - video system to achieve zoned audio - video playback. Taking the ceiling speaker applied to the conference scenario as an example, in multiple audio - video playback areas in the conference hall (such as the first - floor conference room, the second - floor conference room, etc.), one or more ceiling speakers can be correspondingly installed to achieve corresponding audio playback in the corresponding area.

[0079] In some embodiments, the audio - video playback areas can be pre - divided or dynamically divided according to the audio - video playback requirements each time. Only as an example, different areas in the first - floor conference room (such as the auditorium, the podium, or the left - hand side, right - hand side of the conference room, etc.) can also be divided into different audio - video playback areas.

[0080] In some embodiments, the connection situations between different playback devices and the devices in the cabinet are different. For example, when the playback device is a video playback device, the playback device can be electrically connected to an HDMI matrix. For example, at least one audio - video interface of the HDMI matrix is communicatively connected to at least one video playback device through a communication line.

[0081] Again, for example, when the playback device is an intelligent audio - video terminal device (such as CS - AR50) or a ceiling speaker / Dolby speaker and other devices, the playback device can be communicatively connected to a PoE switch.

[0082] In some embodiments, based on the corresponding relationship between the installation position of the playback device and the audio - video playback area (such as the ceiling speaker installed in the corresponding audio - video playback area has a corresponding relationship with the audio - video playback area), the corresponding relationship between each audio interface of the HDMI matrix or each output port of the PoE switch and the audio - video playback area can also be determined.

[0083] In some embodiments, a sliding fixing component can be configured for a playback device with a fixed installation position to adjust the playback direction and playback angle of the playback device. Taking the ceiling speaker as an example, the sliding fixing component can include pulleys, and the pulleys can move in the slide rails on the surface of the ceiling speaker; the pulleys are equipped with fixing parts such as suction cups or plugs.

[0084] By way of example only, the sliding fixing component can adopt two-stage adjustment of pushing and swinging. For example, the sliding fixing component can first push the ceiling speaker along a plane in the annular chute to adjust the playing direction; then, through the swinging connection structure (such as a single-axis hinge) between the pulley and the ceiling speaker body, the pitching angle is finely adjusted and locked to achieve the adjustment of the playing angle.

[0085] In some embodiments, as Figure 2 shown, the intelligent audio-visual system further includes a control panel 117. In some embodiments, the control panel is an interaction panel between the intelligent audio-visual system and the user. The control panel is electrically connected to the main control device and the playback device, and can be used to provide a playback setting path for the user. For example, the control panel can be a touch control panel for providing settings and operations such as quick volume and screen mirroring control for the ceiling speaker. In some embodiments, the control panel can be a regional control panel. For example, one or more regional control panels can be correspondingly set for an audio-visual playback area.

[0086] In some embodiments, the installation position of the control panel can be determined based on actual usage requirements. For example, the control panel can be set on the cabinet or installed on the wall or other positions.

[0087] The following takes different application scenarios as examples to illustrate the components included in the intelligent audio-visual system and the specific connection relationships of each component. It should be noted that the following description is only for example, and in practice, it can be adaptively adjusted according to different scenario requirements.

[0088] By way of example only, in the IoT smart home scenario including whole-house audio-visual intelligent control, the intelligent audio-visual system can include a PoE switch, an IoT box, an intelligent network audio-visual processor, and multiple audio-visual integrated intelligent devices or monitoring cameras that combine functions such as high-definition video acquisition, audio processing, and AI algorithms, as well as smart TVs. Among them, the PoE switch is connected to the user terminal or the cloud server through the router. Multiple audio-visual integrated intelligent devices or monitoring cameras are distributed in different audio-visual playback areas. The intelligent devices or monitoring cameras located in different audio-visual playback areas are connected to the PoE switch. The IoT box is respectively connected to the intelligent network audio-visual processor and the PoE switch, and the smart TV is connected to the intelligent network audio-visual processor.

[0089] By way of example only, in a scenario involving intelligent audio control, a smart audio-visual system may include a PoE switch, an intelligent network audio processor, an HDMI matrix, an intelligent PDU, and multiple audio-visual integrated intelligent devices or displays that combine functions such as high-definition video capture, audio processing, and AI algorithms. Among them, the PoE switch is connected to a user terminal or a cloud server through a router. The multiple audio-visual integrated intelligent devices or displays are distributed in different audio-visual playback areas. The intelligent devices located in different audio-visual playback areas are connected to the PoE switch. The intelligent network audio processor is respectively connected to the PoE switch and the HDMI matrix. The PoE switch is also connected to the HDMI matrix. The display is connected to the HDMI matrix. The intelligent PDU supplies power to the HDMI matrix and the PoE switch respectively.

[0090] In some embodiments, in a scenario of intelligent audio control, the smart audio-visual system may further include an audio-visual panel and a zone control panel. Among them, the audio-visual panel is connected to the HDMI matrix, and the zone control panel is connected to the PoE switch.

[0091] By way of example only, in a scenario involving intelligent audio-visual control, a smart audio-visual system may include a PoE switch, an intelligent network audio-visual processor, and multiple audio-visual integrated intelligent devices or displays and audio equipment that combine functions such as high-definition video capture, audio processing, and AI algorithms. The audio equipment may include a speaker assembly and a Dolby speaker assembly, etc. Among them, the speaker assembly includes a multi-channel amplifier and passive speakers. The PoE switch is connected to a user terminal or a cloud server through a router. The multiple audio-visual integrated intelligent devices or audio equipment are distributed in different audio-visual playback areas. The intelligent devices and the Dolby speaker assembly located in different audio-visual playback areas are connected to the PoE switch. The intelligent network audio-visual processor is respectively connected to the audio equipment and the display. For example, the intelligent network audio-visual processor is connected to the multi-channel amplifier, and the multi-channel amplifier is connected to the passive speakers.

[0092] In some embodiments, the width of the cabinet is not greater than 30 cm, and the depth is not greater than half of the standard 19-inch cabinet; the height of the cabinet follows the Electronic Industries Alliance standard unit (EIA unit); the width of the functional device is not greater than 30 cm, and the depth is not greater than half of the standard 19-inch cabinet; the width of the main control device is not greater than 30 cm, and the depth is not greater than half of the standard 19-inch cabinet. It has the advantages of modularization, integration, small size and portability.

[0093] The cabinet's height following the Electronic Industries Alliance standard unit means that the height of the cabinet is an integer multiple of the EIA unit height (1U). For example, the height of the cabinet can be 2U, 5U, etc.

[0094] In some embodiments, the installation order and positions of the functional device, the main control device, and the power supply device in the cabinet can be set arbitrarily based on actual requirements.

[0095] In some embodiments, in order to avoid heat accumulation between devices, based on the principle of hot air rising, the positions of the devices in the cabinet can be set according to the heat generation of each device, with high-heat devices placed above, low-heat devices placed below, and high-heat devices dispersed.

[0096] Taking the functional device including a PoE switch and an HDMI matrix, and the power supply device being an intelligent PDU as an example, the PoE switch, as a power supply and data transmission device, generates the most heat because it not only transmits data but also powers other devices through network cables. Therefore, it can be set above the high-definition multimedia interface matrix, the main control device, and the remote power manager.

[0097] The main control device is involved in computing and instruction sending, and it also generates relatively high heat. However, the power consumption of the main control device fluctuates with the computing task. For example, when idle, the power consumption may be only dozens of watts, but when fully loaded, the power consumption can reach hundreds of watts or even higher. In contrast, the PoE switch is continuously under high load (for example, in a 7×24-hour power supply scenario, even when the data traffic is low, power supply losses will continuously generate heat). Therefore, the overall heat generation of the main control device is less than that of the PoE switch but higher than that of the HDMI matrix and the intelligent PDU. The intelligent PDU mainly distributes the input power to multiple output ports and basically does not perform voltage conversion or power regulation, and its heat generation is less than that of the HDMI matrix.

[0098] In some embodiments, the intelligent host and the PoE switch need to be separated by a certain distance (such as inserting an HDMI matrix in the middle) to avoid heat accumulation.

[0099] Combined with the dispersion of high-heat devices as much as possible, in some embodiments, the Ethernet power supply switch, the high-definition multimedia interface matrix, the main control device, and the remote power manager are arranged from top to bottom in the cabinet, which can maximize the heat convection efficiency, improve the system stability. At the same time, it can further improve the space utilization rate of the cabinet. For example, hierarchical heat dissipation can reduce interference with cable layout and lower the maintenance complexity.

[0100] In some embodiments, based on the above modular structure design and position deployment, the width of the cabinet can be no more than 30 cm, and the depth can be no more than half of the standard 19-inch cabinet, further improving the integration and portability of the cabinet of the intelligent audio-visual system.

[0101] It should be noted that the above description of the intelligent audio - video system and its modules is only for convenience of description and does not limit this specification within the scope of the exemplified embodiments. It can be understood that for those skilled in the art, after understanding the principle of the system, they may, without departing from this principle, make arbitrary combinations of various components, or form a subsystem and connect it with other modules. In some embodiments, Figure 2 the control panel and the audio - video panel in can also be integrated on one panel. Such deformations are all within the protection scope of this specification.

[0102] Figure 3 is an exemplary flowchart of a control method for an intelligent audio - video system according to some embodiments of this specification. As Figure 3 shown, process 300 includes the following steps. Process 300 can be executed by the processor 120 or the main control device 12 of the intelligent audio - video system 110.

[0103] Step 310, generate multimedia control instructions for multi - channel multimedia playback and corresponding to different power consumptions.

[0104] Multi - channel multimedia playback refers to the audio - video playback corresponding to multiple audio - video playback areas. In some embodiments, multi - channel multimedia playback includes same - area playback and sub - area playback. In some embodiments, same - area playback means that multiple playback devices are located in the same audio - video playback area for playback; sub - area playback means that at least two playback devices are located in different audio - video playback areas for playback based on the same or different playback parameters.

[0105] The multimedia control instructions include those for adjusting the playback parameters of at least one channel in multi - channel multimedia playback. For example, the playback parameters of audio - video channel 1, the playback parameters of audio - video channel 2, the playback parameters of audio - video channel n. In some embodiments, one audio interface can correspond to one or more audio channels; based on the corresponding relationship between each audio interface, the audio - video playback area, and the audio channel, the multimedia control instructions can include the playback parameters corresponding to each audio - video playback area.

[0106] The playback parameters refer to the parameters for adjusting the audio playback effect of the corresponding audio - video playback area. In some embodiments, the playback parameters can include the audio setting parameters of the main control device, and the audio setting parameters can be used to control the activation number and / or the number of channels of the playback devices in the corresponding audio - video playback area, the volume of the playback devices, etc.

[0107] In some embodiments, both the power consumption of the intelligent audio - video system and the frequency coverage range of the intelligent audio - video system are related to the volume of the playback devices and the activation number and / or the number of channels. The main control device can adjust the power consumption corresponding to the multimedia control instructions based on adjusting at least one of the volume, activation number, and number of channels of the playback devices.

[0108] In some embodiments, the master device may generate multimedia control instructions for multi-channel multimedia playback and corresponding to different power consumptions based on various methods.

[0109] In some embodiments, the master device may obtain the real-time playback power consumption and regional characteristics of different audio-visual playback areas of the intelligent audio-visual system at multiple time points; and generate multimedia control instructions based on the real-time playback power consumption and regional characteristics.

[0110] The real-time playback power consumption refers to the actual power consumption when the intelligent audio-visual system is running. The master device may obtain the real-time playback power consumption based on power supply devices such as intelligent PDUs. For example, based on the current transformers and voltage sampling circuits integrated in the intelligent PDU components, the intelligent PDU collects current and voltage signals and uploads them to the master device through an interface, and then the power is obtained.

[0111] In some embodiments, the real-time playback power consumption includes the real-time playback sub-power consumptions corresponding to multiple audio-visual playback areas. The real-time playback sub-power consumption of an audio-visual playback area refers to the total playback power consumption of all playback devices in the audio-visual playback area at a certain time point. In some embodiments, the master device may obtain the real-time power consumption of each playback device through power supply devices such as intelligent PDUs, and then obtain the real-time playback sub-power consumption of the audio-visual playback area.

[0112] The regional characteristics refer to the characteristics corresponding to the audio-visual playback areas. In some embodiments, the regional characteristics may include the population scale, regional area, and environmental temperature. The master device may obtain the regional characteristics through other data acquisition devices that communicate with the intelligent audio-visual system (such as monitoring devices or temperature sensors, etc.).

[0113] In some embodiments, the master device may generate multimedia control instructions based on the real-time playback power consumption and regional characteristics in the following ways:

[0114] In some embodiments, the master device may collect the real-time playback sub-power consumptions and regional characteristics of different audio-visual playback areas at multiple time points regularly or irregularly.

[0115] In some embodiments, the acquisition frequency corresponding to each audio-visual playback area can be dynamically set. Only as an example, the acquisition frequency corresponding to an audio-visual playback area can be positively correlated with the power consumption influence value and negatively correlated with the number influence value. Among them, the power consumption influence value can be the product of a preset reference frequency and the real-time playback sub-power consumption of the audio-visual playback area, and the number influence value can be the change rate of the population quantity in the audio-visual playback area at the current time point relative to the previous time point. The time point can be preset. For example, one minute or one hour can be used as a time point.

[0116] In some embodiments, when the master device acquires a time point, it can obtain the power consumption deviation amplitude and the area deviation amplitude of each audio-video playing area; or when the master device acquires an audio-video playing area, it can obtain the power consumption deviation amplitude and the area deviation amplitude at different time points.

[0117] The area deviation amplitude can reflect the difference between the actual area characteristics and the expected area characteristics of the audio-video playing area. For example, the area deviation amplitude can be the difference between the actual area characteristics and the expected area characteristics. If the actual area characteristics of a certain audio-video playing area are greater than the expected area characteristics, it indicates that the requirements for playing in this audio-video playing area are relatively high, so the playing parameters need to be increased to meet the playing requirements.

[0118] The power consumption deviation amplitude can reflect the difference between the real-time playing sub-power consumption and the expected sub-power consumption of the audio-video playing area. For example, the power consumption deviation amplitude can be the difference between the real-time playing sub-power consumption and the expected sub-power consumption. If the real-time playing sub-power consumption of a certain audio-video playing area is higher than the expected sub-power consumption, it indicates that the audio playing load in this audio-video playing area is relatively large, and the playing parameters need to be reduced to achieve energy consumption control.

[0119] In some embodiments, the master device can update the playing parameters of the audio-video playing area according to the power consumption deviation amplitude and the area deviation amplitude of the audio-video playing area. In some embodiments, the master device can update the playing parameters based on the relationship that the playing parameters are positively correlated with the area deviation amplitude and negatively correlated with the power consumption deviation amplitude.

[0120] Only by way of example: the updated playing parameter = the pre-updated playing parameter * (1 + area deviation amplitude - power consumption deviation amplitude).

[0121] In some embodiments, the master device can generate a multimedia control instruction including the playing parameters of each audio-video playing area based on the above method.

[0122] Step 320, transmit the multimedia control instruction to at least one audio-video interface of the functional device.

[0123] Taking a functional device including a PoE switch and an HDMI matrix as an example, the master device can send multimedia control instructions to the PoE switch. Based on the PoE switch, according to the audio - video playback areas included in the multimedia control instructions, the multimedia control instructions are transmitted to the audio - video interfaces (such as audio - video interface 1, audio - video interface 2, audio - video interface n, etc.) corresponding to each audio - video playback area in the HDMI matrix, and then the audio - video playback in the corresponding audio - video playback area is controlled with corresponding playback parameters. At the same time, the PoE switch can also, according to the audio - video playback areas included in the multimedia control instructions, transmit corresponding multimedia control instructions to the playback devices in the corresponding audio - video playback areas to control the corresponding playback devices to play with corresponding playback parameters.

[0124] In some embodiments, by updating the playback parameters in a timely manner based on the real - time playback power consumption and regional characteristics of each audio - video playback area, the effect of reducing audio - video processing latency can be achieved, thereby enhancing the user experience.

[0125] It should be noted that the above description of the process of generating and transmitting multimedia control instructions is only for illustration and example, and does not limit the scope of application of this specification. For those skilled in the art, under the guidance of this specification, various modifications and changes can be made to the process of generating and transmitting multimedia control instructions. However, these modifications and changes are still within the scope of this specification.

[0126] In some embodiments, the intelligent audio - video system further includes a fan; the cabinet includes a pull - out component, and the pull - out component is configured to drive the fan to move relative to the cabinet.

[0127] The fan can be used to assist in the heat dissipation of each component in the cabinet, achieving the effect of increasing the heat dissipation speed of each component and reducing the impact of temperature on the audio playback synchronization.

[0128] The pull - out component refers to a component used to realize the pulling and moving of the fan in the cabinet. In some embodiments, the pull - out component can include at least one pull - out rack. By way of example only, the pull - out rack can include mechanical structures such as guide rails, guide wheels, and pull rings. The fan can be placed at the bottom of the pull - out component and other positions, so that users can easily pull the fan out of the cabinet, which is convenient for replacing and repairing the fan, etc., and the maintenance cost is reduced.

[0129] In some embodiments, the cabinet uses dedicated guide rails and fixing mechanisms. For example, the size, material, and structure of the guide rails can be determined according to the target load - bearing value of the guide rails, and the target load - bearing value of the guide rails can be determined according to the size of the cabinet. By way of example only, the target load - bearing value of the guide rails is positively correlated with the size of the cabinet.

[0130] In some embodiments, a rubber pad, a spring damper, a suspension system, etc. are integrated into the fixing mechanism to reduce vibration conduction. For example, the number or thickness of the rubber pads integrated into the fixing mechanism is determined according to the size of the cabinet. By way of example only, the number or thickness of the rubber pads is positively correlated with the size of the cabinet.

[0131] In some embodiments, functional devices such as HDMI matrices, PoE switches, and fans support hot plugging, so as to allow the replacement or upgrade of functional devices during system operation.

[0132] In some embodiments, the master device is further configured to: detect device plugging and unplugging actions, dynamically load the driver of the inserted device when a new device is recognized as inserted, and dynamically unload the driver of the removed device when an existing device is recognized as removed.

[0133] In some embodiments, the fan is controlled based on the master device. For example, the master device can control the rotation speed of the fan, etc.

[0134] In some embodiments, a cabinet composed of pull-out components is similar to including multiple drawers, and it can be realized that each component integrated therein is respectively arranged on one layer of drawers. Based on the drawer-type design, it is convenient to realize the position combination and overlap between different components, so as to improve the space utilization rate. At the same time, it is also convenient for the maintenance and replacement of each component, etc.

[0135] In some embodiments, the master device is further configured to generate a preferred position of the fan according to temperature sensing data and issue a prompt to the user.

[0136] The temperature sensing data refers to the ambient temperature data outside the cabinet, which can be obtained based on an external temperature sensing unit. For further description of the external temperature sensing unit, see Figure 5 the corresponding content.

[0137] In some embodiments, the master device can generate a preferred position of the fan according to temperature sensing data. The preferred position of the fan refers to the preferred installation position of the fan in the cabinet. For example, it can be represented based on the components fixed at other positions close to the fan. By way of example only, the preferred position of the fan can be represented as the fan being close to the PDU.

[0138] In some embodiments, the master device can determine the preferred position of the fan by retrieving a position look-up table based on temperature sensing data. The position look-up table includes the corresponding preferred positions of the fan when the temperature sensing data is in different temperature ranges. The position look-up table can be constructed according to historical data.

[0139] By way of example only, a position look-up table constructed based on historical experience and historical data is as follows:

[0140] In some embodiments, after determining the preferred position of the fan, the main control device may send a prompt to the user by sending the determined position to the user terminal or other means, so that the user can adjust the position of the fan based on the preferred position.

[0141] Determining the preferred position of the fan based on temperature sensing data can achieve a reasonable configuration of the fan's position, improve the heat dissipation efficiency, and also adapt to environments at different temperatures such as winter and summer.

[0142] Figure 4 is an exemplary schematic diagram of determining the preferred position of the fan according to some embodiments of this specification.

[0143] As Figure 4 shown, in some embodiments, the main control device is further configured to: predict a future power sequence 420; based on the temperature sensing data 410 and the future power sequence 420, generate a preferred position 440 of the fan through a position determination model 430.

[0144] The future power sequence refers to a sequence composed of the powers of the target components of the intelligent audio - video system at multiple future time points. The target component refers to a component whose power consumption needs to be considered key, for example, a playback device, a fan, etc. An element of the future power sequence can be the power corresponding to the target component at a future time point.

[0145] In some embodiments, the main control device may predict the future power sequence based on a playback plan, etc. For specific descriptions, please refer to Figure 5 the corresponding content.

[0146] In some embodiments, the position determination model may be a machine - learning model, for example, a neural network model (Neural Network, NN). The input of the preset processing model is the current temperature sensing data and the future power sequence. The output of the preset processing model is the preferred position of the fan.

[0147] In some embodiments, the main control device may obtain multiple labeled first training samples based on historical data. Each training sample includes the temperature sensing data of the sample system at the first historical time point, and the power sequences of the target components of the sample system at multiple historical time points within the second historical period. The label is the preferred position of the fan in the sample system. Among them, the first historical time point is before the second historical period.

[0148] In some embodiments, the main control device may obtain historical data, which includes the position records of the fan made multiple times at historical times. The main control device may determine multiple first preferred cases from the historical data and generate the first training samples and corresponding labels based on the first preferred cases.

[0149] In some embodiments, the first preferred case is the record of the positions of the fans in the sample system with good heat dissipation effect and no overheating anomalies in historical data; the master device may use the temperature sensing data of the sample system at the corresponding time point and the power of the target component in the first preferred case as the first training sample, and use the actual positions of the fans in the sample system in the first preferred case as the labels corresponding to the first training sample.

[0150] In some embodiments, the master device may input the first training sample into the initial position determination model to obtain the model prediction output corresponding to the first training sample; according to the model prediction output and the label corresponding to the first training sample, substitute them into the formula of the predefined loss function to calculate the value of the loss function; according to the value of the loss function, update the model parameters in the position determination model in reverse, and this step can be carried out using various methods. For example, it can be updated based on the gradient descent method; when the iteration end condition is met, end the iteration to obtain the position determination model that has been trained.

[0151] In some embodiments of this specification, when the master device determines the preferred position of the fan, it not only refers to the current temperature sensing data but also introduces the power predictions at multiple future time points, which can effectively improve the layout effect of the fan to give full play to its role.

[0152] Figure 5 It is an exemplary schematic diagram for determining the optimal rotation speed of the fan shown in some embodiments of this specification.

[0153] In some embodiments, as Figure 5 shown, the master device is further configured to: predict the future power sequence 420 based on the play plan; combine the temperature sensing data 410 obtained by the external temperature sensing unit, the future power sequence 420, and the current power 510 to determine the optimal rotation speed 520 of the fan and control the fan to operate based on the optimal rotation speed of the fan.

[0154] The play plan refers to the audio play plan of each audio-visual play area in the future period, which may include the expected play parameters corresponding to each audio-visual play area in the future period. For example, the play plan may include the number of activated playback devices, the number of channels of the playback devices, the volume of the playback devices, etc. corresponding to each audio-visual play area in the future period. The future period refers to the period corresponding to multiple future time points. The future time points can be determined based on a preset rule. For example, multiple future time points can be 10 time points after the current time point. For the description of the play parameters, see Figure 3 the corresponding content.

[0155] In some embodiments, the master device may determine a future power sequence by retrieving a preset query table based on a playback schedule. The preset query table includes the correspondence between the playback schedule and the future power sequence. For further description of the preset query table and its generation, refer to the corresponding content hereinafter.

[0156] The external temperature sensing unit may include a temperature sensor installed on the cabinet, etc., for obtaining ambient temperature data.

[0157] In some embodiments, the master device may determine the optimal fan speed by retrieving a preset query table based on temperature sensing data, the future power sequence, and the current power.

[0158] The preset query table may specifically further include the correspondence between temperature sensing data, the future power sequence, the current power, and the optimal fan speed. The preset query table may be determined based on historical data.

[0159] Merely by way of example, the preset query table may be as shown in the following table:

[0160] In some embodiments of this specification, by using the look-up table method to determine the optimal speed, the optimal fan speed can be determined more quickly and conveniently, so as to reduce the computing burden of the master device.

[0161] In some embodiments, the preset query table is determined based on the processing of the playback schedule by a power prediction model and the processing of the target power sequence and temperature sensing data by a speed determination model, and the target power sequence includes the current power and the future power sequence.

[0162] In some embodiments, the master device may determine the future power sequence based on the processing of the playback schedule by a power prediction model.

[0163] In some embodiments, the power prediction model may be a machine learning model, for example, a neural network model (NN). The input of the power prediction model is the playback schedule. The output of the power prediction model is the future power sequence.

[0164] In some embodiments, the master device may obtain a plurality of labeled second training samples based on historical data. Each second training sample includes the playback schedule of the sample system at the first historical time point. The label of the second training sample is the actual power of the target device of the sample system at the corresponding time points in the second historical period when the sample system executes the playback schedule. Among them, the first historical time point is before the second historical period.

[0165] In some embodiments, the master device may obtain historical data, which includes records of multiple audio playbacks performed at historical times, determine multiple second preferred cases from the historical data, and generate second training samples and corresponding labels based on the second preferred cases.

[0166] The second preferred cases include audio playback records in the historical data where the audio playback is clear and the power of the target device of the sample system is stable during the playback period; for example, audio playback records where the evaluation value of the audio playback quality is higher than the audio playback quality threshold and the power of the target device is stable during the playback period. Among them, the audio playback quality can be obtained based on methods such as frequency domain analysis and time domain analysis. The power of the target device during the playback period means that the difference between the power peak and the power mean of the target device during the playback period is lower than a preset difference threshold (such as 30%).

[0167] For the specific training description of the power prediction model, refer to Figure 4 the training description of the position determination model in

[0168] In some embodiments, the master device may, based on the processing of multiple different playback plans by the trained power prediction model, determine their corresponding multiple future power sequences, and then generate the corresponding relationship between different playback plans and future power sequences in the preset query table.

[0169] In some embodiments, the master device may, based on the processing of the target power sequence and temperature sensing data by the rotation speed determination model, determine the optimal rotation speed of the fan, where the target power sequence may include the current power and the future power sequence. For example, the current power and the future power sequence can be combined to obtain the target power sequence.

[0170] In some embodiments, the rotation speed determination model may be a machine learning model, such as a neural network model (NN). The input of the rotation speed determination model is the playback plan. The output of the rotation speed determination model is the future power sequence.

[0171] In some embodiments, the master device may obtain multiple labeled third training samples based on the historical data. Each third training sample includes the power of the target device of the sample system at the first historical time point, the temperature sensing data at the first historical time point, and the power of the target device of the sample system at multiple time points in the second historical period. The label of the third training sample is the rotation speed of the fan of the sample system at the first historical time point. Among them, the first historical time point is before the second historical period.

[0172] In some embodiments, the master device may obtain historical data, which includes the operation records of the cooling fans conducted at historical times. Multiple third preferred cases are determined from the historical data, and third training samples and corresponding labels are generated based on the third preferred cases. The third preferred cases may include the fan operation records in the historical data with good heat dissipation effect and no overheating abnormalities.

[0173] For the specific training description of the rotation speed determination model, refer to Figure 4 the training description of the position determination model.

[0174] In some embodiments, the master device may, based on the processing of multiple different target power sequences and combinations of different temperature sensing data by the trained rotation speed determination model, determine the corresponding optimal fan rotation speed, and then generate the corresponding relationship between different target power sequences, different temperature sensing data, and the optimal fan rotation speed in the preset query table.

[0175] In summary, after obtaining the trained power prediction model and rotation speed determination model, the master device can construct a preset query table through the trained power prediction model and rotation speed determination model. Only as an example, the user inputs the play plan (such as the activation quantity of the playback devices corresponding to each audio-video playback area in the future period, the number of channels of the playback devices, the volume of the playback devices, etc., for example, only the audio-video playback area A is opened, and 4 ceiling speakers in the audio-video playback area A are activated, two channels, and the volume is 70 dB) into the power prediction model to obtain the predicted power at multiple future time points (for example, the powers at multiple future time points are 400W, 410W, 420W,..., and the calculated power mean is 410W); then, the powers at multiple future time points, the current temperature sensing data (such as 4°C), and the current power (such as 400W) are input into the rotation speed determination model to obtain the optimal fan rotation speed (such as 800 RPM). Based on the collation of these parameters (the activation quantity of the ceiling speakers, the number of channels of the ceiling speakers, the volume of the ceiling speakers, the current power, the power at multiple future time points (mean), the temperature sensing data (range), the optimal fan rotation speed), a row of data in the preset query table can be constructed; and so on to construct other rows of data.

[0176] Among them, when the play plan involves multiple audio-video playback areas, the total number of the activation quantity of the playback devices, the mode of the number of channels of the playback devices, the average volume of the playback devices, the average current power, and the average power at multiple future time points can be substituted for corresponding processing.

[0177] After obtaining the optimal rotation speed, the master device can control the fan to operate at the corresponding rotation speed.

[0178] In some embodiments of this specification, the fan is operated based on the optimal rotational speed, which can not only avoid the fan running blindly at high speed, reduce the energy consumption of the fan, but also ensure the heat dissipation effect. Generating the corresponding table based on the model can improve the generation efficiency and accuracy of the table, thereby improving the accuracy of the confirmed optimal rotational speed and enhancing the heat dissipation effect to further ensure the normal operation of the system.

[0179] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are proposed in this specification, so such modifications, improvements, and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

[0180] Meanwhile, this specification uses specific terms to describe the embodiments of this specification. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined.

[0181] In addition, unless clearly stated in the claims, the order of the processing elements and sequences, the use of numerical letters, or the use of other names in this specification are not used to limit the order of the processes and methods of this specification. Although various examples are discussed in the above disclosure for some currently considered useful invention embodiments, it should be understood that such details only serve the purpose of illustration. The appended claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that conform to the essence and scope of the embodiments of this specification. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only through software solutions, such as installing the described system on existing servers or mobile devices.

[0182] Similarly, it should be noted that, in order to simplify the expression of this specification disclosure and thus help the understanding of one or more invention embodiments, in the previous description of the embodiments of this specification, sometimes multiple features are merged into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the features required by the object of this specification are more than those mentioned in the claims. In fact, the features of the embodiment are less than all the features of the single embodiment disclosed above.

[0183] In some embodiments, numbers are used to describe components and quantitative attributes. It should be understood that such numbers used in the description of embodiments are, in some examples, modified by the modifiers "about", "approximately" or "substantially". Unless otherwise specified, "about", "approximately" or "substantially" indicate that the said numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may vary according to the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account the specified significant digits and adopt the method of retaining general digits. Although the numerical ranges and parameters used in some embodiments of this specification to confirm the breadth of their scope are approximate values, in specific embodiments, such numerical settings are made as precise as possible within the feasible range.

[0184] For each patent, patent application, patent application publication and other materials cited in this specification, such as articles, books, specifications, publications, documents, etc., their entire contents are hereby incorporated into this specification by reference. Except for the application history documents that are inconsistent with or conflict with the content of this specification, and except for the documents that limit the broadest scope of the claims of this specification (currently or subsequently attached to this specification). It should be noted that if there are inconsistencies or conflicts between the descriptions, definitions, and / or uses of terms in the supplementary materials of this specification and the content described in this specification, the descriptions, definitions, and / or uses of terms in this specification shall prevail.

[0185] Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, by way of example and not limitation, alternative configurations of the embodiments of this specification may be considered to be consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly introduced and described in this specification.

Claims

1. A smart audio - video system, characterized in that, It includes a cabinet, and a functional device, a power supply device, and a main control device that are integrated inside the cabinet and communicate with each other. The main control device is configured to: Generate multimedia control instructions for multi-channel multimedia playback with different power consumptions, where the multimedia playback includes at least one of audio playback, video playback, and video monitoring; and transmit the multimedia control instructions to at least one audio-video interface of the functional device.

2. The intelligent audio-visual system according to claim 1, wherein The width of the cabinet is not greater than 30 cm, and the depth is not greater than half of the standard 19-inch cabinet; the height of the cabinet follows the standard unit of the Electronic Industries Alliance. The width of the functional device is not greater than 30 cm, and the depth is not greater than half of the standard 19-inch cabinet. The width of the main control device is not greater than 30 cm, and the depth is not greater than half of the standard 19-inch cabinet.

3. The intelligent audio-visual system according to claim 2, wherein The intelligent audio-video system further includes a fan. The cabinet includes a drawer-type component configured to drive the fan to move relative to the cabinet.

4. The intelligent audio-visual system according to claim 1, wherein The intelligent audio-video system further includes a fan, and the fan is controlled based on the main control device.

5. The intelligent audio-visual system according to claim 4, wherein The intelligent audio-video system further includes an external temperature sensing unit. The main control device is further configured to: determine the optimal fan speed based on the temperature sensing data obtained from the external temperature sensing unit and the current power, and control the fan to operate based on the optimal fan speed.

6. A control method for an intelligent audio - video system, characterized in that, The intelligent audio-video system includes a cabinet, and a functional device, a power supply device, and a main control device that are integrated inside the cabinet and communicate with each other; the control method is executed based on the main control device. The control method includes: generating multimedia control instructions for multi-channel multimedia playback with different power consumptions, where the multimedia playback includes at least one of audio playback, video playback, and video monitoring; and transmitting the multimedia control instructions to at least one audio-video interface of the functional device.

7. The control method according to claim 6, wherein The intelligent audio-video system further includes a fan, and the control method further includes: controlling the operation of the fan.

8. The control method according to claim 7, wherein The intelligent audio-video system further includes an external temperature sensing unit. The controlling the operation of the fan includes: Determining the optimal fan speed based on the temperature sensing data obtained from the external temperature sensing unit and the current power, and controlling the fan to operate based on the optimal fan speed.

9. A control device for a smart audio-visual system, characterized in that, The device includes at least one processor and at least one memory. The at least one memory is used to store computer instructions. The at least one processor is used to execute at least some of the computer instructions to implement the control method of the intelligent audio-video system as described in any one of claims 6 to 8.

10. A computer-readable storage medium, the storage medium stores computer instructions, and when a computer reads the computer instructions in the storage medium, the computer executes the control method of the intelligent audio-video system as described in any one of claims 6 to 8.

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