A convention and exhibition video advertisement delivery device with multi-wide-angle lighting function

Abstract

This invention discloses a video advertising projection device for exhibitions with multi-wide-angle lighting functions, including an exhibition video advertising projector, a dynamic attitude adjustment component, an intelligent color-tuning and soft light diffusion component, and a light path shaping and light-cutting component. The exhibition video advertising projector has a spotlight drive chamber installed inside, and the dynamic attitude adjustment component is installed inside the spotlight drive chamber. The intelligent color-tuning and soft light diffusion component is installed on the outer surface of the dynamic attitude adjustment component, and the light path shaping and light-cutting component is installed inside the intelligent color-tuning and soft light diffusion component. This invention constructs a dynamic adjustment mechanism for the spotlight attitude through the coordinated operation of an electric push rod, a telescopic rod, a micro servo motor, and a counterweight. This avoids the defects of mirror reflection, whitening, and blurring caused by the fixed-angle wide-angle direct illumination of the spotlight on the advertising screen. Through the mutual cooperation of a dimming plate, a drive motor, and gears one and two, intelligent switching between warm and cool colors and stepless adjustment of light intensity are achieved.

Description

Technical Field

[0001] This invention relates to the field of advertising placement equipment technology, and more specifically, to a video advertising placement device for exhibitions with multi-wide-angle lighting function. Background Technology

[0002] The multi-angle lighting exhibition video advertising device is a vertical outdoor media terminal that integrates wide-area supplementary lighting. Structurally, it consists of a fixed wide-angle spotlight group at the top, a video display area in the middle, and a supporting column at the bottom. Its core operating logic is to use the large divergence angle of the top lights to project a wide and uniform diffused light in front of the screen, aiming to passively illuminate a wide area around the device, thereby improving the visibility of the advertising image at night or in low-light environments while taking into account the ambient light.

[0003] Existing multi-angle lighting devices for exhibition video advertising typically initiate self-testing and simultaneously activate the high-definition video playback module and the top multi-angle lighting system. Fixed-angle spotlights project a wide range of uniform light in front of the device, forming an illumination field covering the screen and surrounding area. This enhances the visibility and recognition of advertisements in low-light environments. During the advertisement playback, the lighting system continues to operate in a preset wide-angle mode, with a light coverage angle typically exceeding 120 degrees. This can illuminate pedestrian walkways and display areas within several meters in front of the screen without human intervention. By expanding the illuminated area, it strengthens the visual impact of the advertisement and attracts passersby to stop. This is a passive, wide-area coverage lighting enhancement method.

[0004] In practical use, existing technologies often result in the following problems: the spotlights use a fixed angle to shine directly at a wide angle, which can cause the light to directly illuminate the advertising screen, resulting in mirror reflections, whitening, and blurry images. Alternatively, the light can shine directly on the ground and the outer casing, causing localized light spot focusing and glare. Furthermore, the light path cannot be dynamically adjusted according to the location of different people or the intensity of ambient light, which affects the clear presentation of advertising content, visual comfort, and safety of use.

[0005] Therefore, in order to address the aforementioned technical problems, it is necessary to provide a video advertising delivery device for exhibitions with multi-wide-angle lighting capabilities. Summary of the Invention

[0006] The purpose of this invention is to provide a video advertising device for exhibitions with multi-wide-angle lighting function to solve the above-mentioned problems.

[0007] To achieve the above objectives, an embodiment of the present invention provides the following technical solution: A video advertising placement device for exhibitions with multi-wide-angle lighting functions includes an exhibition video advertising placement machine, a dynamic posture adjustment component, an intelligent color-tuning and soft light diffusion component, and a light path shaping and light-cutting component. The exhibition video advertising placement machine has a spotlight drive chamber installed inside. The dynamic posture adjustment component is installed inside the spotlight drive chamber. The intelligent color-tuning and soft light diffusion component is installed on the outer surface of the dynamic posture adjustment component. The light path shaping and light-cutting component is installed inside the intelligent color-tuning and soft light diffusion component. The dynamic posture adjustment component includes an electric push rod fixedly connected to the side wall of the spotlight drive chamber. A connecting plate is installed at one end of the electric push rod. A connecting sleeve is provided on the outer surface of the connecting plate. A spotlight is fixedly connected to the center of the connecting sleeve.

[0008] The intelligent color-tuning and soft light diffusion component includes a drive motor fixedly connected to the outer surface of multiple connecting sleeves. The inner wall of the connecting sleeve is connected to a support sleeve through a bearing seat, and a dimming plate is installed at one end of the support sleeve. The light path shaping and light cutting component includes multiple slide rails fixedly connected between the side walls of the connecting sleeves. A slider is slidably connected to the inner wall of the slide rail, and a light-shielding blade is fixedly connected to the upper surface of the slider.

[0009] As a further improvement of the present invention, a support base is fixedly connected to the bottom of the exhibition video advertising machine, a playback screen is installed on the outer surface of the exhibition video advertising machine, and an AI vision camera is installed on the upper part of the outer surface of the exhibition video advertising machine near the playback screen.

[0010] As a further improvement of the present invention, an electromagnet is fixedly connected inside the slide rail, a magnetic shielding sleeve is fixedly connected to the outer surface of the slide rail, a magnetic block is fixedly connected inside the slider, and the electromagnet and the magnetic block are magnetically connected.

[0011] As a further improvement of the present invention, a light-diffusing layer is fixedly connected between the side walls of the connecting sleeve, the dimming sheet is located above the light-diffusing layer, and warm color filters and cool color filters are centrally symmetrically distributed on the outer surface of the dimming sheet. A second gear is fixedly connected to the outer surface of the dimming sheet, and a first gear is fixedly connected to the output shaft of the drive motor through a coupling. The second gear and the first gear mesh with each other.

[0012] As a further improvement of the present invention, a plurality of counterweights are fixedly connected to the outer surface of the connecting plate, and a micro servo motor is fixedly connected to the outer surface of the counterweights. The outer surface of the micro servo motor is connected to the back of the connecting sleeve.

[0013] As a further improvement of the present invention, a pyroelectric infrared sensor is fixedly connected to the inner wall of the spotlight driving chamber, and the soft light layer is made of milky white polymethyl methacrylate material.

[0014] As a further improvement of the present invention, a pair of telescopic rods are centrally symmetrically installed on the outer surface of the connecting plate, and the other end of the telescopic rods is connected to the inner wall of the spotlight driving chamber.

[0015] As a further improvement of the present invention, the slide rail has multiple positioning grooves arranged in an internal array, a support spring is fixedly connected to the inner wall of the positioning groove, a convex ball is fixedly connected to one end of the support spring, and a groove is provided on the inner wall of the slider, with the convex ball and the groove engaging with each other.

[0016] As a further improvement of the present invention, a reset rod is fixedly connected to the side of the slider, and the other end of the reset rod is connected to the inner wall of the slide rail. The reset rod is made of an elastic reset material, and a light shield is installed on the outer surface of the plurality of connecting sleeves.

[0017] As a further improvement of the present invention, a grating plate and a microprism diffuser are fixedly connected between the side walls of the connecting sleeve and above the light-shielding blade, respectively. The grating plate is made of black polycarbonate material, the microprism diffuser is made of optical grade polycarbonate material, and the light-shielding blade is made of anodized black aluminum alloy material.

[0018] Compared with the prior art, the advantages of this invention are: This solution utilizes the coordinated operation of an electric push rod, a telescopic rod, a micro servo motor, and a counterweight to create a dynamic adjustment mechanism for the spotlight's attitude. This avoids the defects of mirror reflection, whitening, and blurry images caused by the fixed-angle wide-angle direct light from the spotlight illuminating the advertising screen. The electric push rod adjusts the spotlight's height, the micro servo motor adjusts its tilt angle, and the counterweight balances the center of gravity and provides wind and vibration resistance, ensuring that the spotlight's beam always avoids the display screen. This guarantees clear presentation of the advertising content and enhances the advertising display effect.

[0019] By coordinating a dimming disc, a drive motor, warm-color filters, cool-color filters, and gears one and two, intelligent switching between warm and cool tones and stepless adjustment of light intensity are achieved. This avoids the shortcomings of single light tone and fixed intensity that cannot adapt to different groups of people and advertising content. The drive motor rotates the dimming disc, changing the overlapping light transmission area of ​​the warm-color and cool-color filters. Combined with the gender recognition signal of the AI ​​visual camera, the color tone is switched according to gender or the content being played, thereby improving the accuracy and interactivity of advertising.

[0020] By working together with the soft light layer, grating plate and microprism diffuser, multi-level softening and wide-angle diffusion of light are achieved, avoiding defects such as local spot focusing, glare and uneven light distribution caused by direct light. This achieves multi-wide-angle uniform illumination, improves visual comfort and avoids overheating caused by local light focusing.

[0021] By coordinating electromagnets, sliders, light-shielding blades, convex balls, and support springs, defects such as light touching the playback screen and light spot deviation caused by uncontrolled light projection range are avoided. Electromagnets drive the light-shielding blades to move and trim the light spot, and the engagement of the convex ball and the groove achieves graded locking, ensuring that the light is only projected onto the ground or people. This completely cuts off the reflection path from the physical source, ensuring the clarity of the playback screen image, improving the overall atmosphere and the accuracy of light projection, and enhancing the comfort and layering of the on-site visual experience.

[0022] The device detects pedestrians using a pyroelectric infrared sensor and identifies gender using an AI vision camera. The main control board automatically triggers color tone switching and light path adjustment, and automatically resets after the pedestrian leaves, thus achieving intelligent energy saving and automatic adaptation, and improving the ease of use of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a partial structural cross-sectional view of the entire invention; Figure 4 For the present invention Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 This is a partial structural cross-sectional view of the connecting sleeve of the present invention; Figure 6 This is a cross-sectional view of the structure of the dynamic attitude adjustment component and the optical path shaping and beam cutting component of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B; Figure 8 This is a partial structural cross-sectional view of the optical path shaping and cutting component of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of the structure at point C; Figure 10 This is a partial structural cross-sectional view of the intelligent color adjustment and soft light diffusion component of the present invention.

[0024] Explanation of the labels in the diagram: 1. Exhibition video advertising projector; 101. Support base; 102. Playback screen; 103. Spotlight drive chamber; 2. Dynamic attitude adjustment assembly; 201. Electric push rod; 202. Telescopic rod; 203. Connecting plate; 204. Counterweight; 205. Miniature servo motor; 206. Connecting sleeve; 207. Spotlight; 3. Intelligent color adjustment and soft light diffusion assembly; 301. Drive motor; 302. Gear one; 303. Gear two; 304. Dimming plate; 3041. Warm color filter; 3042. 305. Cool color filter; 306. Pyroelectric infrared sensor; 307. AI vision camera; 308. Softening layer; 4. Support sleeve; 5. Optical path shaping and light cutting assembly; 401. Light shield; 402. Light shielding blade; 403. Grating plate; 404. Microprism diffuser; 405. Slide rail; 406. Slider; 407. Electromagnet; 408. Magnetic block; 409. Positioning groove; 410. Support spring; 411. Reset rod; 412. Convex ball; 413. Groove; 414. Magnetic shielding sleeve. Detailed Implementation

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] Example 1: Please see Figure 1 - Figure 10 A video advertising device for exhibitions with multi-wide-angle lighting function includes an exhibition video advertising machine 1, a spotlight drive chamber 103 installed inside the exhibition video advertising machine 1, and a dynamic attitude adjustment component 2 installed inside the spotlight drive chamber 103.

[0027] The dynamic attitude adjustment component 2 includes an electric push rod 201 fixedly connected to the inner wall of the spotlight drive chamber 103. A connecting plate 203 is installed at one end of the electric push rod 201. A connecting sleeve 206 is provided on the outer surface of the connecting plate 203. A spotlight 207 is fixedly connected to the center of the connecting sleeve 206. The spotlight 207 is a high-power LED spotlight, which is powered by DC power and has a stable voltage provided by the internal power module of the device. The brightness of the spotlight 207 can be adjusted by the main control board to adapt to the lighting needs of different scenarios. A support base 101 is fixedly connected to the bottom of the exhibition video advertising machine 1. The support base 101 is made of cast iron and can provide stable support for the entire device, effectively resisting interference from complex environments such as strong outdoor winds and preventing the device from tipping over. A playback screen 102 is installed on the outer surface of the exhibition video advertising machine 1. The playback screen 102 uses a high-definition LCD display panel, which is suitable for strong outdoor light environments and is used to play exhibition-related advertising content, providing clear advertising displays for passersby.

[0028] An AI vision camera 306 is installed on the outer surface of the exhibition video advertising projector 1, near the top of the playback screen 102. The AI ​​vision camera 306 uses a high-definition CMOS camera with fast face detection and gender recognition functions. Its lens uses anti-glare glass to avoid outdoor light interference and ensure recognition accuracy. It is used to capture viewers entering the detection range and complete gender recognition, providing signal support for subsequent color tone switching. Multiple counterweights 204 are fixedly connected to the outer surface of the connecting plate 203. The counterweights 204 are made of lead, are heavy, and work with the micro servo motor 205 to achieve precise angle adjustment, while also enhancing outdoor wind resistance and preventing wind from causing the spotlights 207 to shift angle. The outer surface of the counterweights 204... A micro servo motor 205 is fixedly connected to the surface of the connecting sleeve 206. The outer surface of the micro servo motor 205 is connected to the back of the connecting sleeve 206. The micro servo motor 205 can drive the connecting sleeve 206 and the spotlight 207 to achieve multi-angle rotation adjustment to meet the lighting needs of different directions. A pair of telescopic rods 202 are centrally symmetrically installed on the outer surface of the connecting plate 203. The other end of the telescopic rod 202 is connected to the inner wall of the spotlight drive chamber 103. The telescopic rod 202 is made of stainless steel and is arranged parallel to the electric push rod 201. Its other end is connected to the inner wall of the spotlight drive chamber 103. The telescopic rod 202 plays an auxiliary support and guiding role to prevent the connecting plate 203 from shifting or shaking during the lifting and lowering of the electric push rod 201, and to ensure the stability of the lifting and lowering action.

[0029] The outer surface of the dynamic attitude adjustment component 2 is equipped with an intelligent color-tuning and soft light diffusion component 3. The intelligent color-tuning and soft light diffusion component 3 includes a drive motor 301 fixedly connected to the outer surface of multiple connecting sleeves 206. The inner wall of the connecting sleeve 206 is connected to a support sleeve 308 through a bearing seat. A dimming plate 304 is installed at one end of the support sleeve 308. The support sleeve 308 is used to support and fix the dimming plate 304 to ensure that the dimming plate 304 can rotate smoothly. The bearing seat adopts a deep groove ball bearing to reduce friction during rotation. A soft light layer 307 is fixedly connected between the side walls of the connecting sleeves 206, and the dimming plate 304 is located in the soft light layer. Above 307, a warm-color filter 3041 and a cool-color filter 3042 are centrally symmetrically distributed on the outer surface of the dimmer 304. The dimmer 304 is made of optical-grade glass with a special coating treatment, which has good light transmittance. The warm-color filter 3041 and the cool-color filter 3042 are arranged in a Tai Chi pattern. The warm-color filter 3041 is coated with a red-toned coating, which can filter cool-color light and project warm and soft light. The cool-color filter 3042 is coated with a blue-toned coating, which can filter warm-color light and project refreshing and bright light. By rotating the dimmer 304, the warm and cool colors can be switched.

[0030] A gear 303 is fixedly connected to the outer surface of the dimming disc 304. A gear 302 is fixedly connected to the output shaft of the drive motor 301 via a coupling. Gears 303 and 302 mesh with each other. Starting the drive motor 301 rotates gear 302, which in turn rotates gear 303 and the dimming disc 304 synchronously, thus changing the overlapping light-transmitting area. This achieves both switching between warm and cool color tones and stepless adjustment of light intensity. A pyroelectric infrared sensor 305 is fixedly connected to the inner wall of the spotlight drive chamber 103. The pyroelectric infrared sensor 305 is made of ceramic material and is used to detect whether there are passersby entering the surrounding area. When a passerby is detected, it immediately sends a signal to the main control board to trigger the AI ​​vision camera 306 to start, complete gender recognition, and realize intelligent interaction. The soft light layer 307 is made of milky white polymethyl methacrylate material, which is lightweight and weather resistant. The light emitted by the spotlight 207 is first adjusted in color tone by the dimming sheet 304, and then softened by the soft light layer 307 to reduce the direct intensity of the light and avoid focusing bright spots.

[0031] Furthermore, the electric push rod 201 is activated, driving the connecting plate 203 and all components above it to rise and fall, ultimately adjusting the spotlight 207 to a preset height, ensuring that the spotlight 207 is misaligned with the playback screen 102 to avoid glare caused by flush placement. Simultaneously, the micro servo motor 205 is activated, driving the connecting sleeve 206 and the spotlight 207 to rotate. The counterweight 204 uses gravity to generate a reset torque, ensuring precise angle adjustment. At this point, the spotlight 207 is activated, and the emitted light initially points towards the ground or the designated lighting area. The light emitted by the spotlight 207 first enters intelligent color adjustment and softening... In the light diffusion component 3, the light first passes through the dimming plate 304. At this time, the drive motor 301 is in standby mode, and the dimming plate 304 maintains its initial position. The light passes through the warm color filter 3041 or the cool color filter 3042 of the dimming plate 304 to complete the initial color tone setting. Subsequently, the light passes through the soft light layer 307, which preliminarily softens the light. The softened light continues to propagate upward and passes through the grating plate 403. The fine grid of the grating plate 403 divides the light beam, suppresses stray light, further improves the uniformity of light output, and avoids uneven light distribution.

[0032] Example 2: Please see Figure 1 - Figure 10 Based on Example 1, the intelligent color adjustment and soft light diffusion component 3 is equipped with an optical path shaping and light cutting component 4.

[0033] The optical path shaping and cutting assembly 4 includes multiple slide rails 405 fixedly connected between the side walls of the connecting sleeve 206. A slider 406 is slidably connected to the inner wall of the slide rail 405. A light-shielding blade 402 is fixedly connected to the upper surface of the slider 406. An electromagnet 407 is fixedly connected inside the slide rail 405. The electromagnet 407 is composed of an electromagnetic coil and an iron core, and is made of copper coil and silicon steel sheet. The main control board controls the on / off state and the current magnitude of the electromagnet, thereby controlling the strength of the electromagnetic force to drive the slider 406 to slide. A magnetic shielding sleeve 414 is fixedly connected to the outer surface of the slide rail 405. The magnetic shielding sleeve 414 is made of soft magnetic material and is used to isolate magnetic field interference between adjacent electromagnets 407, ensuring the precise driving of each electromagnet 407 and avoiding mutual influence of magnetic fields that could cause deviation in the sliding of the slider 406.

[0034] A magnetic block 408 is fixedly connected inside the slider 406. An electromagnet 407 is magnetically connected to the magnetic block 408. When the electromagnet 407 is energized, it generates electromagnetic force, attracting or repelling the magnetic block 408, driving the slider 406 to slide along the slide rail 405. This, in turn, moves the light-shielding blades 402. Through the coordinated action of multiple light-shielding blades 402, similar to the light-cutting function of stage lighting, the light spot can be cut into a rectangular or irregular shape, precisely controlling the light projection range. The slide rail 405 has multiple positioning grooves 400 inside its internal array. 9. A support spring 410 is fixedly connected to the inner wall of the positioning groove 409. A convex ball 412 is fixedly connected to one end of the support spring 410. A groove 413 is opened on the inner wall of the slider 406. The convex ball 412 and the groove 413 are engaged with each other. The cooperation between the convex ball 412 and the groove 413 forms an elastic positioning component, which generates segmented damping. This enables the slider 406 to drive the light-shielding blade 402 to lock in stages during the sliding process. At the same time, it has wind-resistant and anti-shaking functions to ensure the accuracy and stability of the light spot shape in complex outdoor environments.

[0035] A reset rod 411 is fixedly connected to the side of the slider 406. The other end of the reset rod 411 is connected to the inner wall of the slide rail 405. The reset rod 411 is made of elastic reset material. When the electromagnet 407 is de-energized, the reset rod 411 can drive the slider 406 and the light-shielding blade 402 to automatically reset to the initial position, facilitating the next light-cutting adjustment. Light shields 401 are installed on the outer surfaces of multiple connecting sleeves 206. The light shields 401 can cover the entire spotlight 207 and its internal structures, blocking direct light from the light source onto the playback screen 102, further avoiding reflection problems. A grating plate 403 and a microprism diffuser 404 are fixedly connected between the side walls and above the light-shielding blade 402. The grating plate 403 is made of black polycarbonate material, the microprism diffuser 404 is made of optical grade polycarbonate material, and the light-shielding blade 402 is made of anodized black aluminum alloy material. The grating plate 403 divides the light beam, suppresses stray light, further improves the uniformity of light output, and eliminates residual bright spots. The microprism diffuser 404 diffuses the light at a wide angle of 120°-180° to achieve multi-wide-angle uniform illumination, while further softening the light and suppressing glare.

[0036] The exhibition video advertising machine 1 is equipped with a main control board. The main control board receives detection signals from the AI ​​vision camera 306 and the pyroelectric infrared sensor 305, and then controls the operation of electrical components such as the electric push rod 201, the micro servo motor 205, the drive motor 301, the electromagnet 407, and the spotlight 207. The power supply adopts a dual power supply mode of mains power and backup battery. The mains power is converted into DC voltage through the power adapter to power the components and charge the backup battery at the same time. When the outdoor mains power is interrupted, the backup battery automatically switches to power supply to ensure the normal operation of the device. All connection lines of the electrical components use waterproof and wear-resistant wires, and the wiring is arranged inside the exhibition video advertising machine 1 to avoid exposure to the external environment.

[0037] Furthermore, when the pyroelectric infrared sensor 305 detects a passerby entering its detection range, it immediately activates the AI ​​vision camera 306. The AI ​​vision camera 306 quickly captures the passerby's facial information and completes gender recognition. Based on the gender recognition result and the advertising content currently playing on the playback screen 102, the main control board sends a control signal to the drive motor 301. The drive motor 301 starts, driving gear 1 302 to rotate. Gear 1 302 meshes with gear 2 303, thereby driving the dimming plate 304 to rotate, changing the overlapping light transmission area of ​​the warm color filter 3041 and the cool color filter 3042, realizing the switching between warm and cool colors. For male passersby, the light is switched to cool color, and for female passersby, the light is switched to warm color. During this process, the soft light layer 307, the grating plate 403, and the microprism diffuser 404 continue to work. After the light is processed by the intelligent color adjustment and soft light diffusion component 3, it enters the light path shaping and light cutting component 4.

[0038] According to the preset lighting range, the main control board sends a control signal to the electromagnet 407 inside the slide rail 405 to control the on / off state and current magnitude of the electromagnet 407. The electromagnet 407 generates electromagnetic force, which repels the magnetic block 408 inside the slider 406, driving the slider 406 to slide along the slide rail 405. The slider 406 drives the light-shielding blades 402 to move synchronously. Multiple light-shielding blades 402 cooperate with each other, similar to the light-cutting function of stage lighting, to cut the light spot into a preset rectangular or irregular shape, ensuring that the light is only projected onto the ground or human body and never touches the glass of the playback screen 102, thus completely cutting off the reflection path from the physical source.

[0039] Working Principle: In use, the device is first placed stably in the designated location at the exhibition venue via the support base 101. The playback screen 102 of the exhibition video advertising machine 1 begins to play exhibition-related advertising content in a loop. At the same time, the main control board controls the dynamic attitude adjustment component 2 to start. The electric push rod 201 receives the signal from the main control board and starts to drive the connecting plate 203 and all components above it to rise and fall. The telescopic rod 202 extends and retracts synchronously, playing an auxiliary guiding role to ensure smooth lifting and lowering. Finally, the spotlight 207 is adjusted to the preset height, so that the spotlight 207 is staggered with the playback screen 102 to avoid light reflection caused by flush placement. At the same time, the micro servo motor 205 is activated, driving the connecting sleeve 206 and the spotlight 207 to rotate and adjust to the preset anti-reflective tilt angle. The counterweight 204 uses gravity to form a reset torque to ensure accurate angle adjustment and avoid shaking. At this time, the spotlight 207 is activated, and the emitted light is initially directed towards the ground or the designated lighting area, preparing for subsequent light processing.

[0040] The light emitted by the spotlight 207 first enters the intelligent color-tuning and soft light diffusion component 3. The light first passes through the dimming plate 304. At this time, the drive motor 301 is in standby mode, and the dimming plate 304 maintains its initial position. The light passes through the warm color filter 3041 or the cool color filter 3042 of the dimming plate 304 to complete the initial color tone setting. Subsequently, the light passes through the soft light layer 307, which initially softens the light, disperses the direct light, reduces the focused bright spots, and reduces the light intensity to alleviate glare. The softened light continues to propagate upwards and passes through the grating plate 403. The fine grating plate 403 divides the light beam, suppresses stray light, further improves the uniformity of light output, and avoids uneven light distribution. Finally, the light passes through the microprism diffuser 404. The tiny prisms of the microprism diffuser 404 diffuse the light in a wide angle, achieving multi-wide-angle uniform lighting, ensuring that the light covers the designated area of ​​the exhibition, and avoiding overheating problems caused by local light focusing.

[0041] When the pyroelectric infrared sensor 305 detects a pedestrian entering its detection range, it immediately sends a signal to the main control board. Upon receiving the signal, the main control board activates the AI ​​vision camera 306. The AI ​​vision camera 306 quickly captures the pedestrian's facial information, completes gender recognition, and feeds the recognition result back to the main control board. Based on the gender recognition result and the currently playing advertisement content on the playback screen 102, the main control board sends a control signal to the drive motor 301. The drive motor 301 starts, driving gear one 302 to rotate. Gear one 302 meshes with gear two 303, thereby driving the dimmer plate 304 to rotate. The overlapping light-transmitting area of ​​the warm-color filter 3041 and the cool-color filter 3042 enables the switching between warm and cool color tones. For male passersby, the light is switched to cool color, and for female passersby, the light is switched to warm color. At the same time, the light intensity is adjusted to match the light color tone with the advertising content, improving the accuracy and interactivity of the advertising. During this process, the soft light layer 307, the grating plate 403, and the microprism diffuser 404 work continuously to ensure that the light is soft, uniform, and wide-angle, further suppressing glare and overheating. The warm and cool color tones can be adjusted simultaneously according to the content being played, achieving precise matching between the lighting atmosphere and the advertising content.

[0042] After being processed by the intelligent color adjustment and soft light diffusion component 3, the light enters the light path shaping and light cutting component 4. The main control board sends control signals to the electromagnet 407 inside the slide rail 405 according to the preset lighting range, controlling the on / off state and current magnitude of the electromagnet 407. The electromagnet 407 generates electromagnetic force, which repels the magnetic block 408 inside the slider 406, driving the slider 406 to slide along the slide rail 405. The slider 406 drives the light-shielding blades 402 to move synchronously. Multiple light-shielding blades 402 work together, similar to the light cutting function of stage lighting, trimming the light spot into a preset rectangular or irregular shape, precisely controlling the light projection range, and ensuring that the light is only focused on the target area. Projected onto the ground or a person, it never touches the glass of the playback screen 102, completely cutting off the reflection path from the physical source. At the same time, during the sliding of the slider 406, the convex ball 412 inside the slide rail 405 is engaged in the groove 413 of the slider 406 under the action of the support spring 410, forming segmented damping, realizing the graded locking of the light-shielding blade 402, ensuring the accuracy and stability of the light spot shape in complex environments. When it is not necessary to cut the light or to adjust the light spot shape, the main control board controls the electromagnet 407 to be de-energized, and the reset rod 411 uses its own elasticity to drive the slider 406 and the light-shielding blade 402 to automatically reset to the initial position, which is convenient for readjustment.

[0043] Throughout the entire operation, the dynamic attitude adjustment component 2 works continuously and collaboratively. The electric push rod 201 can adjust the height of the spotlight 207 at any time according to the needs of the exhibition scene, adapting to the lighting needs of different crowd densities and exhibit heights. The micro servo motor 205 can fine-tune the angle of the spotlight 207 according to the light projection effect, ensuring that the light always avoids the playback screen 102. The counterweight 204 always plays the role of balancing the center of gravity, resisting wind and shaking, and resetting after power failure. The light shield 401 outside the connecting plate 203 covers the entire spotlight 207 and its internal structure, further blocking stray light from directly hitting the playback screen 102. In conjunction with the light path shaping and light cutting component 4, it forms a double anti-reflective protection. When a passerby leaves the detection range of the pyroelectric infrared sensor 305, the AI ​​vision camera 306 stops working, the drive motor 301 drives the dimming plate 304 to reset to the initial color tone, and the light path shaping and light cutting component 4 also resets to the initial state, waiting for the next passerby detection, realizing intelligent energy saving and automatic adaptation.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and not restrictive.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A video advertising device for exhibitions with multi-wide-angle lighting function, characterized in that: The system includes a video advertising machine for exhibitions (1), which has a spotlight drive chamber (103) installed inside. The spotlight drive chamber (103) has a dynamic attitude adjustment component (2) installed inside. The outer surface of the dynamic attitude adjustment component (2) has an intelligent color adjustment and soft light diffusion component (3), and the intelligent color adjustment and soft light diffusion component (3) has a light path shaping and light cutting component (4) installed inside. The dynamic attitude adjustment component (2) includes an electric push rod (201) fixedly connected to the inner wall of the spotlight drive chamber (103). A connecting plate (203) is installed at one end of the electric push rod (201). A connecting sleeve (206) is provided on the outer surface of the connecting plate (203). A spotlight (207) is fixedly connected to the center of the connecting sleeve (206). The intelligent color tuning and soft light diffusion component (3) includes a drive motor (301) fixedly connected to the outer surface of multiple connecting sleeves (206). The inner wall of the connecting sleeve (206) is connected to a support sleeve (308) through a bearing seat. A dimming plate (304) is installed at one end of the support sleeve (308). The optical path shaping and cutting component (4) includes multiple slide rails (405) fixedly connected between the side walls of the connecting sleeve (206). The inner wall of the slide rail (405) is slidably connected to a slider (406), and the upper surface of the slider (406) is fixedly connected to a light-shielding blade (402).

2. The exhibition video advertising device with multi-wide-angle lighting function according to claim 1, characterized in that: The bottom of the exhibition video advertising machine (1) is fixedly connected to a support base (101), and a playback screen (102) is installed on the outer surface of the exhibition video advertising machine (1). An AI vision camera (306) is installed on the outer surface of the exhibition video advertising machine (1) above the playback screen (102).

3. The exhibition video advertising device with multi-wide-angle lighting function according to claim 1, characterized in that: An electromagnet (407) is fixedly connected inside the slide rail (405), a magnetic shielding sleeve (414) is fixedly connected to the outer surface of the slide rail (405), a magnetic block (408) is fixedly connected inside the slider (406), and the electromagnet (407) and the magnetic block (408) are magnetically connected.

4. The exhibition video advertising device with multi-wide-angle lighting function according to claim 1, characterized in that: A soft light layer (307) is fixedly connected between the side walls of the connecting sleeve (206). The dimming plate (304) is positioned above the soft light layer (307). Warm color filter (3041) and cool color filter (3042) are centrally symmetrically distributed on the outer surface of the dimming plate (304). Gear II (303) is fixedly connected to the outer surface of the dimming plate (304). Gear I (302) is fixedly connected to the output shaft of the drive motor (301) through a coupling. Gear II (303) and Gear I (302) mesh with each other.

5. A video advertising device for exhibitions with multi-wide-angle lighting function according to claim 1, characterized in that: Multiple counterweights (204) are fixedly connected to the outer surface of the connecting plate (203), and a micro servo motor (205) is fixedly connected to the outer surface of the counterweight (204). The outer surface of the micro servo motor (205) is connected to the back of the connecting sleeve (206).

6. A video advertising device for exhibitions with multi-wide-angle lighting function according to claim 4, characterized in that: The inner wall of the spotlight drive chamber (103) is fixedly connected to a pyroelectric infrared sensor (305), and the soft light layer (307) is made of milky white polymethyl methacrylate material.

7. A video advertising device for exhibitions with multi-wide-angle lighting function according to claim 1, characterized in that: A pair of telescopic rods (202) are centrally symmetrically installed on the outer surface of the connecting plate (203), and the other end of the telescopic rods (202) is connected to the inner wall of the spotlight drive chamber (103).

8. A video advertising device for exhibitions with multi-wide-angle lighting function according to claim 1, characterized in that: The slide rail (405) has multiple positioning grooves (409) arranged inside. A support spring (410) is fixedly connected to the inner wall of the positioning groove (409). A convex ball (412) is fixedly connected to one end of the support spring (410). A groove (413) is opened on the inner wall of the slider (406). The convex ball (412) and the groove (413) are engaged.

9. A video advertising device for exhibitions with multi-wide-angle lighting function according to claim 1, characterized in that: A reset rod (411) is fixedly connected to the side of the slider (406). The other end of the reset rod (411) is connected to the inner wall of the slide rail (405). The reset rod (411) is made of elastic reset material. A light shield (401) is installed on the outer surface of the multiple connecting sleeves (206).

10. A video advertising device for exhibitions with multi-wide-angle lighting function according to claim 1, characterized in that: A grating plate (403) and a microprism diffuser (404) are fixedly connected between the side walls of the connecting sleeve (206) and above the light-shielding blade (402). The grating plate (403) is made of black polycarbonate material, the microprism diffuser (404) is made of optical grade polycarbonate material, and the light-shielding blade (402) is made of anodized black aluminum alloy material.

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