Linkage system of LED projection and sound equipment

Abstract

The utility model provides an LED projection and sound equipment linkage system, and the system comprises a sound equipment device which is used for playing audio data; the linkage control device is connected with the audio system and is used for calling a pre-configured AI service to recognize audio content of the audio data and obtaining picture data to be displayed; and the LED direct display projection device is connected with the linkage control device and is used for carrying out projection display according to the picture data to be displayed. The LED (Light-Emitting Diode) direct display projection system can support pixel-level display of images and videos, so that the LED direct display projection device is linked with the audible device, diversified display contents can be displayed, and the technical problem that the display contents are single is solved.

Description

Technical Field

[0001] The present application relates to the technical field of audio-visual equipment, and in particular to a linkage system of LED projection and audio. Background Art

[0002] With the advancement of science and technology and the improvement of people's living standards, audio systems that only play sound are no longer sufficient for practical applications. To address this, existing technologies have proposed linked lighting and audio systems, allowing lighting changes to coincide with music playback. Lighting can be linked to audio through display, with the light source emitting colorful light during music playback. Alternatively, lighting can be linked to audio through projection, with projection devices such as spotlights and ambient lighting projecting different light spots or patterns during music playback.

[0003] However, in the existing technology, whether it is the linkage in the form of display or projection, the lights can only simply display different color changes or project fixed light spots or patterns. There is a technical problem of single display content, which makes it difficult to accurately reflect the mood of music and cannot achieve true linkage between projection and audio. Utility Model Content

[0004] The purpose of this application is to solve at least one of the above technical deficiencies, especially the technical defect of single display content in the prior art.

[0005] Some embodiments of the present application provide a LED projection and audio linkage system, including:

[0006] an audio device for playing audio data;

[0007] A linkage control device, connected to the audio device, for calling a pre-configured AI service to identify the audio content of the audio data and obtain the image data to be displayed;

[0008] An LED direct display projection device is connected to the linkage control device and is used for performing projection display according to the picture data to be displayed.

[0009] In one embodiment, the LED direct display projection device includes:

[0010] An LED array, connected to the linkage control device, for controlling the light-emitting state of each LED lamp bead in the LED array according to the image data to be displayed; wherein the LED lamp bead is used as a pixel unit;

[0011] A light homogenizer, provided in the light output path of the LED array;

[0012] The projection module is arranged in the light output path of the light homogenizer.

[0013] In one embodiment, the light homogenizer is a single-sided light homogenizer, and the exit surface of the light homogenizer is a scattering surface.

[0014] In one embodiment, the distance between the scattering surface of the light homogenizer and the light emitting surface of the LED array is less than or equal to 20 mm.

[0015] In one embodiment, the focal length of the projection module is positively correlated with the device height of the LED direct display projection device.

[0016] In one embodiment, the projection module includes a Fresnel lens and a convex lens, and the incident surface of the Fresnel lens is a light surface;

[0017] The Fresnel lens is arranged on the light-emitting path of the light-homogenizing sheet, and the convex lens is arranged on the light-emitting path of the Fresnel lens.

[0018] In one embodiment, the focal length of the Fresnel lens is equal to the focal length of the convex lens.

[0019] In one embodiment, the convex lens is a plano-convex lens, and the incident surface of the convex lens is a plane.

[0020] In one embodiment, the distance between the Fresnel lens and the convex lens is less than or equal to 10 mm.

[0021] In one embodiment, the distance between the projection module and the light diffuser is less than or equal to 50 mm.

[0022] In the LED projection and audio linkage system provided in some embodiments of the present application, since the LED (Light-Emitting Diode) direct display projection system can support pixel-level display of images and videos, the LED direct display projection device is linked with the audio device to display a variety of display content, thereby solving the technical problem of single display content.

[0023] At the same time, the linkage control device can call on AI services to analyze and identify audio content in real time, generate image data to be displayed that matches the music content, and control the LED direct display device to play it synchronously. In this way, the LED direct display device can simultaneously project display content that accurately reflects the mood of the music and enhances the atmosphere during music playback, thus realizing true linkage between projection and audio. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 This is one of the system diagrams of the LED projection and audio linkage system in one embodiment;

[0026] Figure 2 This is a second system diagram of a linkage system of LED projection and audio in one embodiment;

[0027] Figure 3 This is a third system diagram of a linkage system of LED projection and audio in one embodiment;

[0028] Figure 4 This is the fourth system diagram of the LED projection and audio linkage system in one embodiment.

[0029] Description of reference numerals:

[0030] 10—audio device; 20—linkage control device; 30—LED direct display projection device; 310—LED array; 320—light uniformity sheet; 330—projection module. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] In one embodiment, Figures 1-4 As shown, the present application provides a linkage system of LED projection and audio, including: an audio device 10, a linkage control device 20 and an LED direct display projection device 30, and the linkage control device 20 is connected to the audio device 10 and the LED direct display projection device 30 respectively.

[0033] The audio device 10 may be a device with audio playback capabilities. It is understood that the audio device 10 can be selected based on actual application needs and is not specifically limited herein. The device parameters of the audio device 10, such as its size and type, can be determined based on the selected audio device 10.

[0034] The linkage control device 20 may include circuits, devices or equipment with data processing and control functions. The LED direct display projection device 30 may be a device that combines LED direct display technology with projection technology, and can use the LED array 310 as a projection light source for projection display.

[0035] It should be noted that the number of linkage control devices 20 can be one or more, and the number of LED direct display projection devices 30 can be one or more. The specific number of linkage control devices 20 and the specific number of LED direct display projection devices 30 can be determined based on actual conditions and are not specifically limited herein.

[0036] Specifically, the LED direct display projection device 30 and the audio device 10 can be combined in a built-in, external or combined manner. Figure 2 As shown, the built-in type means that the LED direct display projection device 30 is built into the audio device 10, so that the LED direct display projection device 30 and the audio device 10 form an entity.

[0037] like Figure 3 As shown, the external type means that the LED direct display projection device 30 and the audio device 10 are set as two separate entities and connected through a linkage control device. Furthermore, one audio device 10 can be connected to multiple LED direct display projection devices 30 through the linkage control device 20.

[0038] like Figure 4 As shown, the combined type refers to combining the LED direct display projection device 30 and the audio device 10 by surface bonding, mechanical connection, etc., so that the LED direct display projection device 30 and the audio device 10 are combined into one entity.

[0039] Specifically, the audio device 10 can play audio data to achieve an audio playback function. In one example, the audio device 10 can be connected to a control terminal such as a mobile terminal, a laptop computer, or a tablet computer via a communication connection method such as WIFI (wireless network communication technology) or Bluetooth, so that the control terminal can control the audio device through a mini-program, an application, or the cloud.

[0040] The linkage control device 20 can be connected to the audio device 10 and the LED direct display projection device 30 respectively through a wired connection and / or a wireless connection. Furthermore, in one example, the linkage control device 20 can also be connected to a control terminal such as a mobile terminal, a laptop computer, or a tablet computer through a communication connection method such as WIFI or Bluetooth, so that the control terminal can issue control instructions to the linkage control device 20 through a mini-program, an application, the cloud, or the like.

[0041] The linkage control device 20 can call a pre-configured AI (Artificial Intelligence) service to parse and identify the audio content corresponding to the audio data in real time through the AI service, and obtain an AI recognition result. The AI recognition result includes the screen data to be displayed, and the screen data to be displayed may be image data and / or video frame data to be played. In one example, the linkage control device 20 can access an AI software service deployed locally or in a SaaS (Software as a Service) or other deployment form through a control terminal, and obtain the screen data to be displayed.

[0042] When the image data to be displayed is obtained, the linkage control device 20 can control the LED direct display projection device 30 to synchronously project and display the image to be displayed. In this way, during audio playback, image content that can express the mood of the music and enhance the atmosphere can be projected synchronously, with the advantages of diverse display content styles, good display content expression, and a strong sense of atmosphere.

[0043] In one embodiment, an LED direct display projection device 30 includes an LED array 310, a light diffuser 320, and a projection module 330. The LED array 310, serving as the light source component of the LED direct display projection device 30, may include one or more LED lamp beads. Each LED lamp bead serves as a pixel unit. By individually controlling the brightness, color, and blinking of each LED lamp bead, the LED array 310 can achieve pattern and video display.

[0044] In one example, the LED beads can be evenly arranged on the light board in a circular or square arrangement, etc., which is not specifically limited herein. Furthermore, the light board size can be less than or equal to 60 mm (millimeter). The specific size can be determined based on actual conditions, such as the design height of the LED direct display projection device 30. It is understood that the smaller the design height, the smaller the light board size.

[0045] It should be noted that in this application, each LED lamp bead can be a monochrome lamp bead, an RGB (red, green, and blue) lamp bead, or a white light lamp bead, etc. Each LED lamp bead may or may not be configured with a driver IC (Integrated Circuit). When configured with a driver IC, the driver IC can be set in a built-in or external manner. Among them, the built-in driver IC means that the driver IC is set inside the LED lamp bead, and one driver IC controls one LED lamp bead. The external driver IC means that the driver IC is set outside the LED lamp bead, and one driver IC can control multiple LED lamp beads.

[0046] In addition, each LED lamp bead can be processed with a small divergence angle or not. Among them, the small divergence angle processing can be used to converge and collimate the light emitted by the LED lamp bead, so that more light energy enters the projection module 330 and hits the projection surface. Preferably, in this application, the LED lamp bead can adopt an RGB lamp bead configured with an IC and processed with a small divergence angle. That is, the LED lamp bead includes red, green, and blue light-emitting chips arranged in a "product" shape, and the light emitted by the red, green, and blue light-emitting chips is processed with a small divergence angle. In this way, full-color light emission can be achieved to further enrich the display content.

[0047] It can be understood that the specific number of LED lamp beads can be determined according to requirements such as the projection area and resolution, and no specific limitation is made herein. The larger the projection area and the higher the resolution requirement of the linkage system of the LED projection and the sound, the more the number of LED lamp beads. Further, the distance between adjacent LED lamp beads can be less than or equal to 5 mm, and its specific value can be determined according to the device height of the LED direct display projection device 30.

[0048] In this embodiment, the LED array 310 can be connected to the linkage control device 20 to respectively control the light-emitting state of each LED lamp bead in the LED array 310 according to the data of the to-be-displayed picture. The light homogenizing sheet 320 can be arranged on the light-emitting optical path of the LED array 310, and the projection module 330 can be arranged on the light-emitting optical path of the light homogenizing sheet 320. Among them, the light homogenizing sheet 320 can be used for light homogenization, color mixing, and as an imaging display device. The light emitted by the LED array 310 passes through the light homogenizing sheet 320 and scatters on the surface of the light homogenizing sheet 320, so as to achieve light homogenization and color mixing.

[0049] In this application, the light homogenizing sheet 320 can be a single-sided light homogenizing sheet or a double-sided light homogenizing sheet. In one example, the light homogenizing sheet 320 of this application can be a single-sided light homogenizing sheet, and the scattering surface of the light homogenizing sheet 320 is used as the light-emitting surface. In this way, the projection display effect can be improved.

[0050] In one example, the distance between the scattering surface of the light homogenizing sheet 320 and the light-emitting surface of the LED array 310 can be less than or equal to 20 mm, so as to reduce the device height of the LED direct display projection device 30 while ensuring the projection display effect. It should be noted that the specific distance between the scattering surface of the light homogenizing sheet 320 and the light-emitting surface of the LED array 310 can be determined according to design requirements such as the device design height of the LED direct display projection device 30, and no specific limitation is made herein, as long as it is less than or equal to 20 mm. It can be understood that the smaller the device design height, the closer the distance between the scattering surface of the light homogenizing sheet 320 and the light-emitting surface of the LED array 310.

[0051] Furthermore, in one example, the LED direct display projection system may further include a micro lens array disposed between the LED array 310 and the light homogenizer 320 to further converge and collimate the light and improve light energy collection.

[0052] The projection module 330 can be composed of a lens and used for projection imaging. The projection module 330 can project the light emitted from the light-distributing plate 320 onto the projection object surface to achieve projection display. In one example, the focal length of the projection module 330 is positively correlated with the device height of the LED direct display projection device 30. That is, the smaller the device height of the LED direct display projection device 30, the shorter the focal length of the projection module 330, to ensure that there is no obvious light intensity difference between each pixel in the projected pattern or video, and a uniform surface distribution is presented.

[0053] In one example, the spacing between the projection module 330 and the light diffuser 320 can be less than or equal to 50 mm. It should be noted that the specific spacing between the projection module 330 and the light diffuser 320 can be determined based on design requirements, such as the device design height of the LED direct display projection device 30. This document does not impose any specific restrictions on this spacing; it only requires that it be less than or equal to 50 mm. It is understood that the smaller the device design height, the smaller the spacing between the projection module 330 and the light diffuser 320.

[0054] In the present application, the projection module 330 may include a single lens or multiple lenses. When multiple lenses are used, the lens combination may be a conventional lens, a Fresnel lens, or a conventional lens plus a Fresnel lens.

[0055] In one example, the lens module can be implemented using a dual-lens combination of a Fresnel lens and a convex lens to reduce the height of the LED direct display projection device 30. Specifically, the Fresnel lens is placed in the light path of the light diffuser 320, and the convex lens is placed in the light path of the Fresnel lens. The Fresnel lens can be placed in a front-facing position, that is, the incident surface of the Fresnel lens is a light surface, to allow more light to pass through and ensure maximum light efficiency.

[0056] Furthermore, the convex lens can be a plano-convex lens or a biconvex lens. In one example, the convex lens can be a plano-convex lens, and the convex lens is placed frontally. That is, the incident surface of the convex lens is flat to allow more light to pass through and ensure maximum light efficiency.

[0057] Furthermore, in one example, the focal length of the Fresnel lens may be equal to the focal length of the convex lens, so that the projection module 330 has a maximum light efficiency.

[0058] Furthermore, in one example, the distance between the Fresnel lens and the convex lens is less than or equal to 10 mm, for example, 0 mm, 1 mm, 2 mm, etc., thereby further reducing the device height of the LED direct display projection device 30 while ensuring the projection display effect.

[0059] In the above embodiment, by blurring and mixing the light emitted by the LED array 310 with the light homogenizer 320, a soft light effect with a bright center and dark periphery (slowly transitioning from the center to the periphery) can be formed, and it is projected through the projection module 330. The obtained image and video display screen can maintain the original resolution and form a blurred, illusory, and soft display light effect, which can further improve the display effect.

[0060] The LED direct projection system provided in the above embodiment summarizes the relationship between various conditions, such as the size of the LED array 310 light panel, the spacing between LED beads, the focal length of the projection module 330, the focal lengths and orientations of the lenses of the projection module 330, and the device size, height, and display lighting efficiency of the LED direct projection device 30, and proposes a small-sized LED direct projection system. This system not only has the advantages of small size, low height, and high lighting efficiency, but also allows for the reasonable selection of conditions such as the size of the LED array 310 light panel, the spacing between LED beads, the focal length of the projection module 330, the focal lengths and orientations of the lenses of the projection module 330, based on different system size, height, projection distance, and area requirements, thereby enabling the LED direct projection device 30 to be better integrated into the audio device 10.

[0061] To facilitate understanding of the solution of this application, a specific example is provided below to illustrate.

[0062] Please see Figures 1-4 The LED projection and audio linkage system provided in this example may include: an audio device 10, a linkage control device 20, and an LED direct display projection device 30. The LED direct display projection device 30 may include an LED array 310, a light diffuser 320, and a projection module 330. The projection module 330 is arranged in the light output path of the light diffuser 320, and the light diffuser 320 is arranged in the light output path of the LED array 310. The linkage control device 20 is connected to the audio device 10 and the LED array 310 respectively.

[0063] For the relevant description of the audio device 10 and the linkage control device 20 , please refer to the above embodiments, which will not be repeated here.

[0064] The LED direct display projection device 30 has a height of 45mm to 50mm, a diameter of 30mm to 100mm, a projection distance of 2m, and a projection area of 1.2m to 1.8m. The LED array 310 includes 100 to 200 LED beads, each evenly arranged in a circular or square shape on a light board. Adjacent LED beads are spaced 1mm to 2mm apart, and the light board measures 20mm to 30mm.

[0065] The diameter of the light homogenizer 320 is 30mm to 100mm, and the light is homogenized on one side. The scattering surface of the light homogenizer 320 is the light emitting surface. The distance between the scattering surface of the light homogenizer 320 and the upper part of the LED array 310 (ie, the light emitting surface) is 2mm to 8mm.

[0066] The distance between the projection module 330 and the light homogenizer 320 can be 5 mm to -30 mm. The projection module 330 can be implemented by a double lens combination of a Fresnel lens and a convex lens, and the convex lens can be a plano-convex lens with a diameter of 30 mm to 100 mm.

[0067] The focal length of the Fresnel lens is equal to that of the convex lens. The focal length of the Fresnel lens can range from 50mm to 90mm, and it should be positioned in a forward orientation (with the light-side incident). The focal length of the convex lens can range from 50mm to 90mm, and it should be positioned in a forward orientation (with the flat side incident). The distance between the Fresnel lens and the plano-convex lens should be less than or equal to 10mm, preferably 0mm.

[0068] Finally, it should be noted that, in this article, relational terms such as first and second are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. Without further restriction, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element. Herein, "one," "said," "the," and "its" may also include plural forms unless the context clearly indicates otherwise. A plurality refers to at least two, such as 2, 3, 5, or 8. "And / or" includes any and all combinations of the relevant listed items.

[0069] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can be referenced to each other.

[0070] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A LED projection and audio linkage system, characterized in that: include: an audio device for playing audio data; A linkage control device, connected to the audio device, for calling a pre-configured AI service to identify the audio content of the audio data and obtain the image data to be displayed; An LED direct display projection device is connected to the linkage control device and is used for performing projection display according to the picture data to be displayed.

2. The LED projection and audio linkage system according to claim 1, characterized in that: The LED direct display projection device includes: An LED array, connected to the linkage control device, for controlling the light-emitting state of each LED lamp bead in the LED array according to the image data to be displayed; wherein the LED lamp bead is used as a pixel unit; A light homogenizer, provided in the light output path of the LED array; The projection module is arranged in the light output path of the light homogenizer.

3. The LED projection and audio linkage system according to claim 2, characterized in that: The light homogenizer is a single-sided light homogenizer, and the exit surface of the light homogenizer is a scattering surface.

4. The LED projection and audio linkage system according to claim 3, characterized in that: The distance between the scattering surface of the light uniforming sheet and the light emitting surface of the LED array is less than or equal to 20 mm.

5. The LED projection and audio linkage system according to claim 2, characterized in that: The focal length of the projection module is positively correlated with the device height of the LED direct display projection device.

6. The LED projection and audio linkage system according to claim 2, characterized in that: The projection module includes a Fresnel lens and a convex lens, and the incident surface of the Fresnel lens is a light surface; The Fresnel lens is arranged on the light-emitting path of the light-homogenizing sheet, and the convex lens is arranged on the light-emitting path of the Fresnel lens.

7. The LED projection and audio linkage system according to claim 6, characterized in that: The focal length of the Fresnel lens is equal to the focal length of the convex lens.

8. The LED projection and audio linkage system according to claim 6, characterized in that: The convex lens is a plano-convex lens, and the incident surface of the convex lens is a plane.

9. The LED projection and audio linkage system according to any one of claims 6 to 8, characterized in that: The distance between the Fresnel lens and the convex lens is less than or equal to 10 mm.

10. The LED projection and audio linkage system according to any one of claims 2 to 8, characterized in that: The distance between the projection module and the light homogenizer is less than or equal to 50 mm.

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