Bird visual friendly and light pollution inhibiting intelligent road sound insulation system

Abstract

This disclosure relates to fields such as environmental protection, municipal engineering, and intelligent transportation facilities, and particularly to an intelligent road sound insulation system that is bird-friendly and suppresses light pollution. The intelligent road sound insulation system of this disclosure includes: a sound insulation composite screen, assembled from screen units, each screen unit comprising: a diffuse scattering and ultraviolet warning composite layer; a photosensitive and fluorescent bird-repelling substrate layer; an intelligent light-shielding and sound-absorbing composite layer, including: a liftable light-shielding curtain; a sensor group, disposed on the screen unit or its adjacent structure; and an intelligent collaborative control system, electrically connected to the intelligent light-shielding and sound-absorbing composite layer and the sensor group, for controlling the operation of the drive device based on ambient light information and bird activity information. This disclosure allows the sound insulation screen to automatically switch operating modes according to day-night changes, bird activity density, and road lighting conditions, enabling it to have intelligent adjustment capabilities that adapt to environmental changes, thereby improving overall protection efficiency and energy utilization efficiency.

Description

Technical Field

[0001] This disclosure relates to fields such as environmental protection, municipal engineering and intelligent transportation facilities, and in particular to an intelligent road sound insulation system that is bird-friendly and suppresses light pollution. Background Technology

[0002] Currently, mainstream screen unit designs are guided by the principles of "landscape concealment" and "visual transparency," widely employing highly transparent materials such as polycarbonate panels and glass. However, such designs suffer from serious ecological and environmental drawbacks:

[0003] (1) Visual traps

[0004] The high transparency makes the screen unit difficult for birds' visual systems to recognize under certain lighting conditions (such as backlighting or low illumination), causing birds (especially migratory birds) to misjudge it as a space that can be traversed and crash into it at high speed, resulting in injury or death.

[0005] (2) Light pollution problem

[0006] Smooth surfaces are prone to specular reflection glare; at night, the headlights of vehicles and streetlights on the side of the road will penetrate the screen and scatter outward, forming light pollution. This not only disturbs the living environment, but its strong light and flickering characteristics can also attract, confuse, or even blind birds instantly, increasing the risk of collision.

[0007] (3) Technological isolation

[0008] Existing technologies are mostly single-function improvements (such as attaching bird strike warning stickers or using frosted glass), lacking systematic solutions based on birds' visual characteristics (such as their sensitivity to ultraviolet light), failing to meet the protection needs of different environments during the day and night, and failing to achieve dynamic coordination of sound insulation, bird protection, and light control. Summary of the Invention

[0009] I. Technical problems to be solved

[0010] This disclosure aims to at least partially solve one of the aforementioned technical problems.

[0011] II. Technical Solution

[0012] This disclosure provides a bird-friendly and light pollution-suppressing intelligent road sound insulation system. The intelligent road sound insulation system includes:

[0013] The soundproof composite screen is composed of N screen units, where N≥2. The screen units are arranged in a multi-layer structure along the direction from the environment side to the road side, including: a diffuse scattering and ultraviolet warning composite layer, located on the side away from the road; a photosensitive and fluorescent bird-repelling substrate layer, located inside the diffuse scattering and ultraviolet warning composite layer; and an intelligent light-shielding and sound-absorbing composite layer, located on the side closer to the road, including: a height-adjustable light-shielding curtain that can be adjusted between an open state and a light-shielding state; a guide rail system located on the inner edge of the screen unit to provide a vertical sliding guide path for the light-shielding curtain; and a drive device, electrically connected to the light-shielding curtain and the intelligent collaborative control system, used to drive the light-shielding curtain to adjust between the open state and the light-shielding state according to the instructions of the intelligent collaborative control system.

[0014] A sensor array, disposed on the screen unit or its adjacent structure, includes: an ambient light sensor and a bird activity monitoring device, for collecting ambient light information and bird activity information, respectively;

[0015] The intelligent collaborative control system is electrically connected to the intelligent light-shading and sound-absorbing composite layer and the sensor group, respectively, and is used to control the operation of the drive device based on ambient light information and bird activity information.

[0016] In some embodiments of this disclosure, the device further includes: an ultraviolet LED array disposed on the inner side of the photosensitive and fluorescent bird-repelling substrate layer; an ultrasonic bird repeller disposed on the screen unit; N screen units sharing an ambient light sensor and a bird activity monitoring device; the ambient light sensor includes: a main sensor disposed on the top outer side of the screen unit for sensing natural light intensity; an auxiliary sensor disposed on the inner side of the screen unit facing the road for sensing artificial light intensity in the road direction; and an intelligent collaborative control system for selecting a corresponding working mode based on information obtained from the main sensor, auxiliary sensor, and bird activity monitoring device, and controlling the drive device, ultraviolet LED array, and ultrasonic bird repeller according to the working mode.

[0017] In some embodiments of this disclosure, the intelligent collaborative control system selects corresponding operating modes based on the following logic: Daytime light transmission mode, when the natural light intensity is higher than a first preset threshold and the illuminance ratio of the main and auxiliary sensors is greater than a preset ratio, the light-blocking curtain is controlled to be in an open state; Dusk or dawn transition mode, when the natural light intensity is between a first preset threshold and a third preset threshold, the light-blocking curtain is controlled to enter a partial light-blocking state; Nighttime safety mode, when the natural light intensity is lower than a third preset threshold and the artificial light intensity is higher than a second preset threshold, the light-blocking curtain is controlled to enter a light-blocking state; Bird density alarm mode, when the bird activity density is higher than a fourth preset threshold, a bird deterrent enhancement strategy is instantly activated, including: increasing the output power of the ultraviolet LED array and activating the ultrasonic bird deterrent.

[0018] In some embodiments of this disclosure, the bird activity monitoring device includes: a bio-radar, disposed on the screen unit; the bio-radar is a frequency-modulated continuous wave bio-detection radar or a micro-Doppler radar, wherein one bio-radar is disposed every M meters, and 20≤M≤100; the algorithm library of the intelligent collaborative control system pre-stores micro-Doppler feature templates of bird flight, and the intelligent collaborative control system performs matching degree calculation between the real-time target signal of the bio-radar and the micro-Doppler feature templates: target determination: when the matching degree exceeds a preset matching threshold and the target is within the effective detection area, it is determined as a "bird target"; threat assessment: combining the target's trajectory and velocity vector, predicting its collision risk with the screen, if the target continues to approach the screen and the velocity vector points towards the screen, it is marked as a "potential threat target"; alarm triggering: when multiple "bird targets" are detected simultaneously or a single "potential threat target" is continuously within a high-risk distance, a "bird dense alarm mode" is triggered, and the high-risk distance is 5m~30m from the screen unit.

[0019] In some embodiments of this disclosure, the bird activity monitoring device further includes: an infrared bird monitor disposed on the screen unit; the infrared bird monitor includes: a dual-element or quad-element passive infrared motion sensor and a thermal imaging camera, which are spaced apart on the top or side of the screen unit; when the passive infrared motion sensor detects a rapid change in infrared radiation within its field of view, it triggers a primary signal of "movement occurring"; the intelligent collaborative control system executes the following judgment logic: when the passive infrared motion sensor is triggered, or the system is in a high alert period, the thermal imaging camera starts or intensifies the scanning of the area, wherein the high alert period is dusk during the migration season; the thermal imaging image processing algorithm is called to first perform background temperature filtering, and then identify hot spots that are higher than the ambient temperature and conform to the size range of birds; the identified hot spots are tracked to analyze their movement direction and speed; if the hot spot's movement trajectory is directly towards the screen, or repeatedly hovers or lingers in front of the screen, it is determined to be a high-risk behavior, which serves as a supplement and verification of the bio-radar detection at close range.

[0020] In some embodiments of this disclosure, the intelligent collaborative control system further includes: a meteorological data interface for receiving wind speed, rainfall, and humidity data from an external meteorological station; the meteorological data interface is connected to the meteorological station or meteorological information providing device via a wireless LoRa communication module or a wired communication method, wherein when the wind speed exceeds a preset threshold, the intelligent collaborative control system controls the shading curtain to automatically retract; when the real-time rainfall exceeds a sixth preset threshold, the shading curtain is restricted from frequently switching between a partial shading state and a shading state.

[0021] In some embodiments of this disclosure, the sensor group includes: a date clock module; the intelligent collaborative control system performs time correction on the working mode based on the time information of the date clock module; wherein, when it is in a preset nighttime period, the weight of the first preset threshold is reduced; when it is in a preset time period of the high-risk season for migratory birds, the fourth preset threshold of the bird density alarm mode is increased.

[0022] In some embodiments of this disclosure, the intelligent collaborative control system is an embedded industrial computer within a regional control cabinet; the regional control cabinets are spaced 500 to 1000 meters apart along the road; the intelligent collaborative control system adopts a distributed bus hierarchical architecture, including multiple unit control nodes; each screen unit or several screen units constitute a unit control node; each unit control node includes a unit controller, which integrates analog-to-digital conversion circuits and execution drive circuits, used to digitize the analog signals collected by the sensor group and output execution control signals; all unit control nodes form a network topology through a control bus; the control bus is a CAN bus or an industrial-grade RS485 bus; the network topology is a ring network structure or a star structure; data from the bio-radar and thermal imaging camera are accessed through a network switch to the embedded industrial control computer within the regional control cabinet for real-time processing.

[0023] In some embodiments of this disclosure, in the intelligent light-shielding and sound-absorbing composite layer, the guide rail system is an aluminum alloy profile guide rail, fixed to the inner side of the photosensitive and fluorescent bird-repelling substrate layer, and has a built-in cable groove and drive steel cable for the drive device; the light-shielding curtain includes: a film layer, a silver or black PVDF film with high ultraviolet blocking rate; an interlayer, an open-cell melamine foam board with a thickness of 2-10mm; a porous layer, a waterproof and sound-permeable fabric with a microporous array; the drive device includes: a main drive motor; a secondary drive motor; a differential transmission mechanism; a tension adjustment mechanism; a wind load adaptive tensioning component; and a self-locking braking component; wherein the main drive motor and the secondary drive motor respectively drive the input end of the differential transmission mechanism; the output end of the differential transmission mechanism is connected to the drive steel cable. Alternatively, a drive roller can be used to raise and lower the blackout curtain. The tension adjustment mechanism includes a slidable tension slider and a preload spring assembly to maintain a constant tension of the blackout curtain at different heights. The wind load adaptive tensioning assembly includes a counterweight rod at the bottom of the blackout curtain, a damping slider inside the guide rail, and an electrically controlled damping adjustment unit connected to the wind speed signal. When the wind speed exceeds a preset threshold, the electrically controlled damping adjustment unit increases the friction damping coefficient of the damping slider to suppress the lateral sway of the blackout curtain. A self-locking brake assembly is located at the output end of the differential transmission mechanism. When the drive device is powered off or malfunctions, the self-locking brake assembly automatically locks the drive shaft to prevent the blackout curtain from falling uncontrollably due to wind load or gravity.

[0024] In some embodiments of this disclosure, a microstructured diffuse scattering treatment layer is formed on the outer surface of the diffuse scattering and ultraviolet warning composite layer, and an ultraviolet high reflectance warning pattern is formed on the diffuse scattering treatment layer; the diffuse scattering and ultraviolet warning composite layer includes: a first substrate, which is an acrylic plate or a polycarbonate plate, on which a microstructured diffuse scattering treatment layer is formed on its outer surface, the surface roughness Ra of which satisfies: 10μm≤Ra≤40μm; an ultraviolet high reflectance warning pattern, formed on the first substrate, which is an interlaced array of circular spots or a strip-shaped grid structure, which is formed by drying a coating material, and by mass percentage, the coating material includes: a first matrix material, which is an aliphatic polyurethane acrylate resin, 40%~70%; carbon black material and nano zinc oxide particles dispersed in the first matrix material, wherein the carbon black material, 0.1%~2%, has a particle size between 10nm and 30nm; and nano zinc oxide particles, 15%~35%, have a particle size between 50nm and 120nm, which are surface modified by a silane coupling agent.

[0025] In some embodiments of this disclosure, the photosensitive and fluorescent bird-repelling substrate layer is made of a transparent or semi-transparent substrate, incorporating photochromic microcapsules and long-afterglow fluorescent materials. The photosensitive and fluorescent bird-repelling substrate layer serves as the main load-bearing structural layer of the screen unit, with vertically extending reinforcing ribs inside. The photosensitive and fluorescent bird-repelling substrate layer includes: a second substrate, which is a transparent or semi-transparent hollow plate formed by hot-pressing extrusion of the following materials: a second matrix material: nano-modified polycarbonate or polymethyl methacrylate; photochromic microcapsules and fluorescent materials dispersed in the second matrix material, wherein the photochromic microcapsules are spiroxazine-based photochromic microcapsules, with a mass percentage content between 0.2% and 1.5%; and the fluorescent material is a long-afterglow rare-earth aluminate, with a mass percentage content between 1.0% and 3.0%.

[0026] III. Beneficial Effects

[0027] As can be seen from the above technical solution, this disclosure has at least one of the following beneficial effects compared to the prior art:

[0028] (1) In this disclosure, ambient light and bird activity information are collected in real time by a sensor group such as an ambient light sensor and a bird activity monitoring device. The working status of the light-blocking curtain, the ultraviolet LED array and the bird-repelling device is controlled by an intelligent collaborative control system. The working mode is automatically switched according to the changes in day and night, the density of bird activity and the road lighting conditions, so that the sound barrier has the intelligent adjustment capability to adapt to environmental changes, thereby improving the overall protection efficiency and energy utilization efficiency.

[0029] (2) In this disclosure, through the multi-layer composite screen structure design, the diffuse warning layer, the bird deterrent substrate layer and the light-shielding and sound-absorbing layer are integrated in the same screen unit, so that the sound barrier can maintain the original noise reduction function while also having bird anti-collision and light pollution control functions. This avoids the structural complexity and increased maintenance costs caused by the need to set up multiple independent facilities separately in traditional technologies, and realizes the multi-functional collaborative use of traffic sound insulation facilities.

[0030] (3) In this disclosure, by setting a diffuse scattering and ultraviolet warning composite layer on the outside of the screen, the screen forms a high reflectivity warning pattern in the ultraviolet band that birds are sensitive to, while the visible light does not affect human vision. At the same time, the bird-repelling substrate layer formed by combining photosensitive color-changing material and long afterglow fluorescent material enables the soundproof screen to be effectively identified by birds under different lighting conditions and generate avoidance behavior, thereby significantly reducing the risk of birds misjudging the space and hitting the screen. It is especially suitable for bird migration channels or ecologically sensitive areas.

[0031] (4) In this disclosure, the glare generated by the specular reflection of sunlight is weakened by the microstructure diffuse scattering treatment layer on the outer surface of the screen. At the same time, a liftable intelligent shading curtain is set near the road side to block the transmission and scattering of vehicle lights and street lights to the environment side at night or in strong artificial light environment, thereby suppressing the diffusion of light pollution from the light source path and significantly improving the nighttime light environment of residential areas and ecological environment around the road.

[0032] (5) In this disclosure, by setting a differential transmission mechanism of main and auxiliary motors, a tension adjustment mechanism, a wind load adaptive tensioning component and a self-locking braking component in the drive structure of the light-blocking curtain, the light-blocking curtain can still maintain a stable state under conditions such as high wind speed, power failure or equipment abnormality, and prevent the curtain from swinging out of control or falling, thereby improving the operational reliability and safety of the sound barrier system in complex road environments. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of a screen unit in an intelligent road sound insulation system that is bird-friendly and suppresses light pollution, according to an embodiment of this disclosure.

[0034] Figure 2 This is a schematic diagram of the installation of the screen unit in an intelligent road sound insulation system that is bird-friendly and suppresses light pollution, according to an embodiment of this disclosure. Detailed Implementation

[0035] This disclosure aims to completely overcome the aforementioned shortcomings of existing technologies and provide a systematic, intelligent, and eco-friendly comprehensive solution for sound insulation composite barriers. Its core objectives include:

[0036] (1) Active protection against birds: Through multi-spectral visual intervention, the screen unit provides dual protection against birds, which can be "early warning from a distance and can be identified up close", thus fundamentally preventing collision accidents.

[0037] (2) Dynamically suppress light pollution: Adaptively reduce glare from sunlight reflection and intelligently block the leakage of internal light at night, significantly reducing light pollution to the surrounding environment and night sky.

[0038] (3) Achieve intelligent collaboration: Through the central control system, each functional module can dynamically adjust its working mode according to the environment, time and bird activity status, so as to achieve a collaborative protection effect of "1+1+1>3".

[0039] (4) Functional integration and optimization: Under the premise of ensuring and potentially enhancing the core sound insulation performance, the above-mentioned ecological protection functions will be seamlessly integrated to promote the construction of green infrastructure.

[0040] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0041] This embodiment provides an intelligent road sound insulation system that is visually friendly to birds and suppresses light pollution. Its core technical solution includes three main parts: screen unit, functional module integration and intelligent collaborative control system.

[0042] Figure 1 This is a schematic diagram of a sound insulation composite screen in an intelligent road sound insulation system that is bird-friendly and suppresses light pollution, according to an embodiment of this disclosure. Figure 2 This is a schematic diagram of the installation of a sound insulation composite screen in an intelligent road sound insulation system that is bird-friendly and suppresses light pollution, according to an embodiment of this disclosure.

[0043] As shown in the figure, this embodiment of the intelligent road sound insulation system includes a sound insulation composite screen and sound insulation screen columns, a crash barrier flange, a crash barrier beam, and a concrete crash barrier pier.

[0044] 1. The sound barrier is embedded in the middle of the sound barrier column.

[0045] 2. The crash barrier is located 300mm inside the sound barrier.

[0046] 3. The concrete crash barrier piers are connected by crash barrier beams, and the spacing between the piers is less than 1.5 meters to ensure safety.

[0047] 4. The relationship between the anti-collision flange and the anti-collision column.

[0048] In this embodiment, "anti-collision flange" typically refers to a component of the flange post, primarily used to fix the anti-collision post to a hardened road surface (such as a concrete foundation). Its relationship can be broken down as follows:

[0049] Composition: The flange column consists of three parts: the flange base plate (or flange plate), the column body, and the stiffening ribs.

[0050] Connection: The flange base is welded to the bottom of the column, forming a single unit. During installation, the entire flange column is placed in the predetermined position, and then anchored to the concrete foundation by bolts through the holes in the flange base.

[0051] Function: This "flange + bolt" connection method provides a stable and detachable fixing solution for crash barriers on hardened road sections where piling is not feasible. It ensures the stability of the crash barrier system itself, thereby indirectly providing a safe foundation for the sound barrier system attached to it.

[0052] This embodiment of the intelligent road sound insulation system includes: at least one sound insulation composite screen; a sensor group, disposed on the sound insulation composite screen or its adjacent structure, including: an ambient light sensor and a bird activity monitoring device, used to collect ambient light information and bird activity information respectively; and an intelligent collaborative control system, electrically connected to the intelligent light-shielding and sound-absorbing composite layer and the sensor group respectively, used to control the operation of the sound insulation composite screen based on the ambient light information and bird activity information.

[0053] (a) Sound insulation composite screen

[0054] The sound insulation composite barrier is assembled from multiple standardized barrier unit modules. Each barrier unit adopts a composite layered functional structure design, including, from the outside to the inside (or divided according to functional areas):

[0055] The diffuse scattering and ultraviolet (UV) warning composite layer comprises a base diffuse scattering layer and a UV warning pattern layer. The base diffuse scattering layer involves frosting or microstructuring the outer surface of the screen, serving as a base layer to significantly reduce specular glare from direct sunlight. The UV warning pattern layer, applied over the base layer, selectively coats or composites UV reflective materials in specific geometric shapes (such as grids, dot matrix, or stripes) to form an invisible warning pattern visible to birds but with minimal interference to human vision. The size and spacing of the pattern are optimized based on bird visual recognition thresholds and human landscape visual acceptance.

[0056] Photosensitive / fluorescent bird-repelling substrate layer: A transparent / semi-transparent substrate (such as modified polycarbonate sheet) is used, with photosensitive color-changing and / or fluorescent bird-repelling materials integrated into its interior or surface. This substrate, integrated with the bird-repelling coating, gives the entire screen all-weather visual repelling properties.

[0057] Intelligent light-blocking and sound-absorbing composite layer: It adopts a light-blocking curtain, which mainly serves the functions of sound absorption and heat insulation.

[0058] 1. Outermost layer: Diffuse scattering and ultraviolet warning composite layer (integrated functional layer)

[0059] Location: Located on the outermost side of the screen (away from the road), permanently exposed to the environment.

[0060] Structure and connection: The substrate is made of modified weather-resistant acrylic or polycarbonate sheet with surface microstructure treatment.

[0061] Composite settings:

[0062] Basic function: The outer surface of the substrate is finely frosted or has a textured matrix optical treatment (specification: Ra ≈10-40μm) to form an inherent diffuse scattering layer, which greatly reduces the specular reflection gloss of incident light and reduces sunlight glare at the source.

[0063] Core warning function: On the above diffuse scattering substrate, ultraviolet light curing printing technology or screen printing technology is used to print high-intensity ultraviolet reflective pigments (such as staggered array of circular spots with a diameter of 50mm and a spacing of 150mm, or strip grids with a certain width).

[0064] Special Features: The coating material is formulated to achieve a matrix reflectance of less than 10% in the human visible light spectrum (390nm-780nm), but a reflectance of over 70% in the bird-sensitive ultraviolet spectrum (300nm-400nm). This results in a vivid pattern in bird vision while remaining essentially "invisible" to human vision, thus meeting landscape requirements. Specifically, the coating material comprises: a first matrix material, an aliphatic polyurethane acrylate resin, 40%~70%; carbon black material and nano-zinc oxide particles dispersed in the first matrix material, wherein the carbon black material comprises 0.1%~2% with a particle size between 10nm and 30nm; and the nano-zinc oxide particles comprise 15%~35% with a particle size between 50nm and 120nm, which are surface-modified with a silane coupling agent.

[0065] 2. Intermediate layer: Photosensitive / fluorescent bird-repelling substrate layer

[0066] Location: Right next to the inner side of the first layer, forming the main load-bearing structure and optical functional substrate of the screen.

[0067] Structure and Connection: Transparent / semi-transparent hollow sheets are formed by extrusion of nano-modified polycarbonate (PC) or polymethyl methacrylate (PMMA).

[0068] Composite configuration: During the mixing stage of the substrate production process, photochromic microcapsules and long-lasting afterglow phosphors are uniformly incorporated in a specific ratio.

[0069] Photochromic microcapsules: Under high-intensity ultraviolet light (>1000μW / cm²), these microcapsules react with a preset specific ultraviolet wavelength, causing the substrate to slightly change from transparent to a specific protective color (such as light blue or purple) in the localized area of ​​the substrate (e.g., the area corresponding to the first layer of warning pattern), thus creating a close-range dynamic color warning for birds. Specifically, in this embodiment, the photochromic microcapsules are spiroxazine-based photochromic microcapsules, with a mass percentage content between 0.2% and 1.5%.

[0070] Fluorescent material: It is a long-afterglow rare earth aluminate (SrAl2O4:Eu, Dy), with a mass percentage content of 1.0%~3.0%. Its fluorescence spectrum peak is located in the band that causes glare / repulsion to birds' vision (such as 500nm-600nm yellow-green). It can absorb and store light energy during the day and emit light continuously for several hours in twilight / dawn / low light environments, providing passive repellency function day and night.

[0071] 3. Innermost layer: Intelligent light-blocking and sound-absorbing composite layer (movable / adjustable layer)

[0072] Location: Located on the side of the screen closest to the road, serving as the system's active physical control and secondary acoustic layer.

[0073] Structure and Connections:

[0074] The innermost intelligent light-blocking and sound-absorbing composite layer includes: a light-blocking curtain that can be raised and lowered, adjustable between an open state and a light-blocking state; a guide rail system located on the inner edge of the sound insulation composite screen, used to provide a vertical sliding guide path for the light-blocking curtain; and a drive device electrically connected to the light-blocking curtain and the intelligent collaborative control system, used to drive the light-blocking curtain to adjust between an open state and a light-blocking state according to the instructions of the intelligent collaborative control system.

[0075] The blackout curtain itself has a sound-absorbing structure. Its core function is to lower it at night or during specific periods of time to physically block strong light from scattering outwards from the roadside, while also assisting in sound insulation.

[0076] Guide rail system: A high-strength, weather-resistant aluminum alloy profile guide rail with built-in cable groove and drive steel cable is set on the inner edge of each screen unit.

[0077] Blackout curtain: The curtain is made of multi-layer composite fabric, and its structure from the outside to the inside (facing the road) is as follows: Membrane layer: Silver / black PVDF membrane with high UV blocking rate, used to reflect / absorb external light and ultraviolet rays; Interlayer: Open-cell melamine foam board with a thickness of about 2~10mm, which serves as the main body for sound absorption and heat insulation; Porous layer: Waterproof and sound-permeable cloth with microporous array, which ensures a certain degree of air permeability while maintaining the surface density required for noise reduction.

[0078] The driving device includes: a main drive motor; a secondary drive motor; a differential transmission mechanism; a tension adjustment mechanism; a wind load adaptive tensioning component; and a self-locking braking component. The main drive motor and the secondary drive motor respectively drive the input end of the differential transmission mechanism; the output end of the differential transmission mechanism is connected to a drive cable or drive reel for raising and lowering the blackout curtain. The tension adjustment mechanism includes a slidable tension slider and a preload spring assembly for maintaining a constant tension force on the blackout curtain at different heights. The wind load adaptive tensioning component includes: a counterweight rod located at the bottom of the blackout curtain; a damping slider located inside the guide rail; and an electrically controlled damping adjustment unit electrically connected to a wind speed signal.

[0079] When the wind speed exceeds the preset threshold, the electronically controlled damping adjustment unit increases the friction damping coefficient of the damping slider to suppress the lateral sway of the shading curtain; the self-locking braking component is set at the output end of the differential transmission mechanism. When the drive device is powered off or malfunctions, the self-locking braking component automatically locks the drive shaft to prevent the shading curtain from falling uncontrollably due to wind load or gravity.

[0080] Connection method: The top of the curtain is connected to the drive steel cable through a composite hanger, which can be raised and lowered to any angle (0° fully open to 90° fully closed) under the command of the central intelligent collaborative control system, or partially closed in sections.

[0081] In this embodiment, the drive unit forms a redundant drive system through a differential transmission structure of main and auxiliary motors. Even if a single motor malfunctions, it can still maintain basic control of the curtain, improving system reliability. Combined with a self-locking braking component, the drive shaft is automatically locked in the event of a power outage or fault, preventing the curtain from falling uncontrollably due to wind load or its own weight, thus enhancing passive safety. Through a wind-load adaptive tensioning component and an electronically controlled damping adjustment unit, damping can be automatically increased and curtain sway suppressed in high wind speed environments. Combined with a constant tension mechanism, the flatness of the curtain and the fit of the sound-absorbing structure are maintained, thereby stabilizing light-blocking and noise-reduction performance. The overall structure is highly adaptable to the open road environment, achieving highly reliable, stable, and safe coordinated operation.

[0082] 4. Optional auxiliary modules

[0083] To enhance protection in specific scenarios, the following modules can be integrated:

[0084] ① A miniature ultraviolet LED array, or UV LED, is placed inside the photosensitive and fluorescent bird-repellent substrate layer to enhance the visibility of ultraviolet warning patterns at night.

[0085] ② Ultrasonic bird repeller, installed on the screen unit

[0086] ③ Infrared bird activity monitoring sensors, etc.

[0087] As can be seen from the above description, the intelligent road sound insulation system of this embodiment has the following beneficial effects:

[0088] ① Improved ecological protection effectiveness

[0089] Through dual visual protection at both near and far ranges—"precise ultraviolet pattern warning" and "wide-area deterrence with overall bird-repelling coating"—combined with physical shading at night, the risk of bird collisions is significantly reduced, especially ensuring the safety of migration routes.

[0090] ② Intelligent dynamic management of light pollution control

[0091] The diffuse scattering treatment during the day reduces glare at the source; the intelligent blackout curtain at night actively and on demand blocks light pollution sources, and its light control effect is far superior to that of passive materials.

[0092] It should be noted that the screen unit and the sound insulation composite screen in this embodiment can be manufactured, sold and used separately, and they are also within the protection scope of this disclosure.

[0093] II. Intelligent Collaborative Control

[0094] Based on the aforementioned sound insulation composite screen, the intelligent road sound insulation system disclosed herein also includes:

[0095] The perception layer, or sensor group, integrates an ambient light sensor, a bio-radar / infrared bird monitor, a date and clock module, and an optional meteorological data interface for real-time acquisition of information on light intensity, bird activity, time, and weather.

[0096] The control layer, or intelligent collaborative control system, includes a built-in central processing unit and preset control logic algorithms. These algorithms are based on perceived data and dynamically determine the system's operating mode.

[0097] Execution layer: Connects and controls the motor of the electric blackout curtain, auxiliary light source (such as UV LED), bird deterrent and other execution components.

[0098] 1. Perception layer

[0099] The perception layer is the data foundation for the system to achieve intelligent collaborative control. It integrates multiple sensors to collect environmental, biological activity, and time information in real time. The specific configuration is as follows:

[0100] (1) Specific setup and judgment process of ambient light sensor

[0101] Specific type: A digital ambient light sensor with a wide spectral response and high dynamic range is selected. This type of sensor can simultaneously measure the intensity of visible and infrared light, facilitating accurate judgment of natural lighting conditions and interference from artificial light sources.

[0102] Location setting:

[0103] Main sensor: Installed on the top outer side of the sound insulation composite screen, unobstructed, directly facing the sky, used to monitor the total ambient illuminance (including sunlight, moonlight, and sky diffused light).

[0104] Auxiliary sensor: Installed on the inner surface of the sound insulation composite screen facing the road, used to monitor the irradiation intensity of specific artificial light sources such as streetlights and vehicle lights from the road side.

[0105] Special settings:

[0106] Both the main and auxiliary sensors need to be equipped with cosine correctors to ensure the accuracy of measurements of incident light at different angles.

[0107] It is equipped with a dustproof and waterproof casing, and the stability of the readings is checked periodically through the self-test program of the control system.

[0108] Judgment criteria and procedures:

[0109] Data acquisition: The central processing unit reads the illuminance values ​​(unit: lux) of the main and auxiliary sensors at a fixed frequency (e.g., 1Hz).

[0110] Pattern judgment logic:

[0111] Daytime mode: When the illuminance of the main sensor is continuously higher than the preset threshold A (e.g., 1000 lux) and the ratio of the illuminance of the main and auxiliary sensors is greater than the preset ratio (e.g., >10:1), it is determined to be a strong daytime light condition.

[0112] Dusk / Dawn Transition Mode: When the main sensor illuminance is between threshold B and threshold A (e.g., 100 lux to 1000 lux) and the rate of change in illuminance is gradual.

[0113] Night mode: When the main sensor illuminance is below threshold B (e.g., 100 lux), the auxiliary sensor illuminance may experience pulse peaks due to the headlights, but the main sensor value remains low.

[0114] Control Trigger: The judgment result serves as one of the core inputs, which in turn controls the lifting angle of the blackout curtain and the activation status of the bird-repelling coating.

[0115] (2) Specific setup and judgment process of bio-radar

[0116] Specific types: Frequency modulated continuous wave (FMCW) biodetection radar or micro-Doppler radar. These radars are sensitive to the subtle movements of birds, such as wing flapping and body movements, and can effectively distinguish birds from other small organisms (such as insects) or floating objects. They are also highly resistant to ambient light and weather interference.

[0117] Location setting:

[0118] Arranged in an array, a radar sensor is installed at regular intervals (e.g., 50 meters) on a dedicated column at the top or rear of the soundproof composite screen. Those skilled in the art should understand that the above is merely a preferred embodiment of this disclosure; in practical applications, a bio-radar can be installed every 20m to 100m as needed.

[0119] The radar's detection beam main lobe should be aligned with the air corridor area in front of the soundproof composite screen where birds may fly, and tilted downwards at a certain angle to cover the airspace near the screen.

[0120] Special settings:

[0121] The radar operates in the K-band to improve the detection resolution for small targets.

[0122] By setting the effective detection distance range (e.g., 10 to 50 meters in front of the screen) and height range through software, the system can focus on the area of ​​interest and reduce false alarms.

[0123] An integrated digital signal processing module is used to analyze the micro-Doppler characteristics in the echo signal in real time.

[0124] Judgment criteria and procedures:

[0125] Signal acquisition: The radar continuously scans, and the DSP module extracts the target's range, velocity, azimuth, and micro-Doppler spectrum.

[0126] Feature recognition: The algorithm library pre-stores micro-Doppler feature templates of typical bird flight (such as specific flapping frequency ranges and wing-beating harmonic features). The matching degree between the real-time signal and the template is calculated.

[0127] Target determination: When the matching degree exceeds 70% and the target is within the effective detection area, it is determined to be a "bird target".

[0128] Threat assessment: By combining the target's trajectory and velocity vector, the collision risk with the screen is predicted. If the target continues to approach the screen and its velocity vector is pointing towards the screen, it is marked as a "potential threat target".

[0129] Alarm Trigger: When multiple "bird targets" or a single "potential threat target" are detected simultaneously and remain within a high-risk distance (e.g., <20 meters), the system triggers the "Bird Dense Alarm Mode".

[0130] (3) Specific setup and judgment process of infrared bird activity monitoring sensor

[0131] Specific type: It combines a passive infrared (PIR) motion sensor with a thermal imaging infrared camera. PIR is used for wide-range motion detection, while thermal imaging is used for high-precision target identification and positioning.

[0132] Location setting:

[0133] PIR sensors are spaced apart on the top or side of the screen, and their detection fan-shaped area covers the low-altitude airspace in front of the screen (e.g., 5-15 meters) and the vicinity of the screen surface.

[0134] Thermal imaging cameras: selectively installed in key areas (such as known bird passages or areas with existing impact records), with their field of view covering key areas in front of and to the sides of the screen.

[0135] Special settings:

[0136] PIR sensors should be selected in dual or quaternary form to enhance their resistance to interference from slow temperature changes.

[0137] Thermal imaging cameras should have a certain temperature resolution and be equipped with a protective cover.

[0138] The system sets temperature thresholds, primarily focusing on heat sources that exhibit characteristics of homeothermic animals (such as a body temperature of approximately 38-42°C).

[0139] Judgment criteria and procedures:

[0140] Primary trigger (PIR): A PIR sensor detects a rapid change in infrared radiation within its field of view, which triggers a primary signal indicating that "motion has occurred".

[0141] Target confirmation (thermal imaging): When PIR is triggered, or the system is in a high alert period (such as dusk during migration season), the thermal imaging camera is activated or intensifies the scanning of the area.

[0142] Analysis and identification: The thermal imaging image processing algorithm first performs background temperature filtering, and then identifies hot spots that are higher than the ambient temperature and fall within the size range of birds (converted by pixel size and distance).

[0143] Behavioral analysis: Track the trajectory of identified hotspots and analyze their direction and speed. If a hotspot's trajectory is directly towards the screen, or repeatedly hovers or circles in front of the screen, it is considered a high-risk behavior.

[0144] Collaborative Judgment: The results of infrared monitoring can serve as a short-range supplement and verification to bio-radar detection. When both infrared and radar detect valid targets in similar time and space, and their behavioral judgments are consistent, the accuracy and reliability of triggering the "bird density alarm mode" are greatly improved.

[0145] (4) Meteorological data interface

[0146] The meteorological data interface is a reserved interface, which can receive wind speed, rainfall and humidity data from nearby meteorological stations via wireless LoRa module or wired connection.

[0147] (5) System connectivity of the perception layer

[0148] 1. Bus hierarchy

[0149] The entire control system adopts a hierarchical architecture of distributed bus. Each screen unit (or several units as a group) is a local control node, and the node contains a "unit controller" that integrates analog-to-digital conversion and drive circuitry.

[0150] 2. Network Topology

[0151] All unit control nodes form a ring or star network via CAN bus or industrial-grade RS485 bus to ensure data link redundancy. Bio-radar and thermal imaging data require large bandwidth and are processed in real time via network switches connected to embedded industrial control computers located in area control cabinets (one every 500-1000 meters along the road).

[0152] 2. Connection and driving between the control layer and the execution layer

[0153] Hierarchical structure:

[0154] Intelligent collaborative control system:

[0155] An embedded industrial computer located within the area control cabinet. It handles all complex logical decisions (such as threat assessment and mode switching) and coordinates global commands.

[0156] Local execution unit: The controller of each screen unit receives instructions from the central control and directly drives the light-blocking curtain geared motor (such as a 27VDC DC motor with Hall encoder feedback) and other execution components in this unit.

[0157] Blackout curtain drive:

[0158] The motor receives control signals and power from the unit controller via a flat cable with a strip steel core (integrated within the guide rail). The cable is also used to provide feedback of closed / open position signals.

[0159] Auxiliary module (optional) driver:

[0160] UV LED array: Built into the lower edge of the top of the light-shielding curtain of some screen units, it is connected to the PWM signal of the controller and can perform intelligent graded control of brightness.

[0161] Sonic bird deterrent: Installed on the top of the outer side of the unit screen, and driven by the unit controller at regular intervals or according to warning commands.

[0162] Power and Management:

[0163] The system's main power supply is drawn from nearby power sources along the pipeline, and powers the sensors, controllers, and actuators through distributed DC power modules (converting outputs to 12V / 24V). An uninterruptible power supply (UPS) and battery backup system are configured to ensure that core monitoring and communication functions continue to operate after an unexpected power outage.

[0164] 3. Work Mode

[0165] Collaborative workflow: The system automatically and dynamically switches between the following modes based on the sensed information:

[0166] Daytime light transmission mode: Focuses on diffuse scattering and UV warning; blackout curtains are retracted.

[0167] Dusk / Dawn Transition Mode: Adjust the angle of the blackout curtain to activate the fluorescent bird-repellent coating.

[0168] Nighttime Safety Mode: The blackout curtain is fully lowered to block light pollution, and UV LEDs can help activate warning patterns.

[0169] Bird density alarm mode: When a flock of birds is detected approaching, a "strong bird deterrence" combination strategy is instantly activated (such as enhanced ultraviolet pattern and linked sound wave deterrence).

[0170] Under the unified scheduling of the control system, the various functional modules form a deep synergy in terms of time (day and night), space (different functional layers of the screen), and functional mechanisms (warning, repelling, and shading), thus forming an all-weather, adaptive, and multi-layered comprehensive protection system.

[0171] Furthermore, when the wind speed exceeds a preset threshold, the intelligent collaborative control system automatically retracts the shading curtain; when the real-time rainfall exceeds a sixth preset threshold, it restricts the shading curtain from frequently switching between partial shading and full shading states. The sensor group includes a date clock module; the intelligent collaborative control system adjusts the operating mode based on the time information from the date clock module; specifically, when in a preset nighttime period, the weight of the first preset threshold is reduced; when in a preset time period during a high-risk migratory bird season, the fourth preset threshold for the bird density alarm mode is increased.

[0172] Based on the above description, the intelligent road sound insulation system disclosed herein can achieve the following beneficial effects:

[0173] ① High adaptability and reliability

[0174] The intelligent collaborative control system enables the soundproof composite screen to automatically adjust its status based on real-time environmental and biological activity data, adapting to the needs of different weather, seasons, and time periods, resulting in more precise, efficient, and energy-saving operation.

[0175] ② A three-in-one system solution

[0176] This disclosure proposes for the first time a three-in-one system solution of "functional module division - composite structure layout - intelligent collaborative control". Through innovative connection relationships and control logic, the various components work together organically to solve the problem of the limitations of single-measure protection and achieve optimal overall performance.

[0177] ③ The unity of social, environmental and economic benefits

[0178] While perfectly fulfilling its primary function of sound insulation, it also proactively undertakes the responsibility of biodiversity conservation and dark sky protection, demonstrating broad application prospects and significant exemplary value.

[0179] This concludes the description of the various embodiments of this disclosure. Based on the above description, those skilled in the art should have a clear understanding of this disclosure.

[0180] It should be noted that for some implementation methods, if they are not key contents of this disclosure and are well known to those skilled in the art, they are not described in detail in the accompanying drawings or text due to space limitations. In such cases, relevant prior art can be referred to for understanding.

[0181] Unless explicitly stated otherwise, the numerical values ​​and ranges mentioned in this disclosure are approximate and can be changed according to the content of this disclosure. Specifically, all figures in the specification and claims indicating composition, reaction conditions, etc., should be understood to be modified by the term "about" in all cases, meaning that they include variations of ±10% in certain embodiments.

[0182] The ordinal numbers used in this disclosure, such as “first,” “second,” “third,” “primary,” “secondary,” and Arabic numerals, letters, etc., used to modify the corresponding elements (or steps), are intended only to make one element (or step) with a certain name clearly distinguishable from another element (or step) with the same name, and do not imply that the element (or step) has any ordinal number, nor do they represent the order of one element (or step) with another element (or step).

[0183] The order of steps in this disclosure is not limited to those listed above unless otherwise specifically described or required to occur in sequence, and may be varied or rearranged as needed for the design.

[0184] Those skilled in the art will understand that the modules or steps of this disclosure described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby allowing them to be stored in a storage device for execution by a computing device, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, this disclosure is not limited to any particular combination of hardware and software.

[0185] This disclosure can also be implemented as a device or apparatus program (e.g., a computer program and a computer program product) for performing part or all of the methods described herein. Such an implementation of the disclosure may be stored on a computer-readable medium or may take the form of one or more signals. Such signals may be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

[0186] This disclosure can be implemented using hardware comprising several different elements and a suitably programmed computer. Various component embodiments of this disclosure can be implemented in hardware, or as software modules running on one or more processors, or a combination thereof. Physical implementations of the hardware structure include, but are not limited to, physical devices, including, but not limited to, transistors, memristors, DNA computers, microcontrollers, microprocessors, or digital signal processors (DSPs). Furthermore, this disclosure is not directed to any particular programming language. It should be understood that the contents of this disclosure can be implemented using various programming languages, and the description of specific languages ​​herein is for the purpose of disclosing the best mode of implementation of this disclosure.

[0187] Those skilled in the art will understand that in the claims and specification of this disclosure, the word "comprising" does not exclude the presence of elements (or steps) not listed in the claims. The word "a" or "an" preceding an element (or step) does not exclude the presence of a plurality of such elements (or steps).

[0188] Furthermore, the above embodiments are provided only to enable this disclosure to meet legal requirements, and this disclosure may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein.

[0189] Similarly, it should be understood that, for the sake of brevity, in the foregoing description of exemplary embodiments of this disclosure, various features of this disclosure are sometimes grouped together in a single embodiment, figure, or description thereof. However, this approach to disclosure should not be construed as reflecting an intention that the claimed disclosure requires more features than are expressly recited in each claim. Rather, as reflected in the claims, each aspect of the disclosure comprises fewer than all the features of the preceding single embodiment. Furthermore, embodiments may be used in combination with each other or with other embodiments based on design and reliability considerations; that is, technical features from different embodiments can be freely combined to form more embodiments. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of this disclosure.

[0190] The above specific embodiments have provided a detailed description of the purpose, technical means, and beneficial effects of this disclosure. It should be understood that the purpose of the detailed description is to enable those skilled in the art to understand this disclosure more clearly, and it is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A bird-friendly and light pollution-suppressing intelligent road sound insulation system, characterized in that, include: A soundproof composite barrier is composed of N barrier units, where N ≥ 2. The barrier units are arranged in a multi-layered structure along the direction from the environmental side towards the road side, including: A composite layer of diffuse scattering and ultraviolet warning is placed on the side away from the road; A photosensitive and fluorescent bird-repellent substrate layer is disposed inside the diffuse scattering and ultraviolet warning composite layer; The intelligent light-blocking and sound-absorbing composite layer, located on the side closest to the road, includes: a height-adjustable light-blocking curtain that can be adjusted between an open state and a light-blocking state; a guide rail system located on the inner edge of the screen unit to provide a vertical sliding guide path for the light-blocking curtain; and a drive device electrically connected to the light-blocking curtain and the intelligent collaborative control system to drive the light-blocking curtain to adjust between an open state and a light-blocking state according to the instructions of the intelligent collaborative control system. A sensor group, disposed on the screen unit or its adjacent structure, includes: an ambient light sensor and a bird activity monitoring device, used to collect ambient light information and bird activity information, respectively; The intelligent collaborative control system is electrically connected to the intelligent light-shielding and sound-absorbing composite layer and the sensor group, respectively, and is used to control the operation of the drive device based on the ambient light information and bird activity information. The photosensitive and fluorescent bird-repelling substrate layer is made of a transparent or semi-transparent substrate, incorporating photochromic microcapsules and long-afterglow fluorescent materials. This photosensitive and fluorescent bird-repelling substrate layer is the main load-bearing structural layer of the screen unit, with vertically extending reinforcing ribs inside. The photosensitive and fluorescent bird-repelling substrate layer includes: a second substrate, which is a transparent or semi-transparent hollow plate formed by hot-pressing extrusion of the following materials: a second matrix material: nano-modified polycarbonate or polymethyl methacrylate; photochromic microcapsules and fluorescent materials dispersed in the second matrix material, wherein the photochromic microcapsules are spiroxazine-based photochromic microcapsules, with a mass percentage content between 0.2% and 1.5%; and the fluorescent material is a long-afterglow rare-earth aluminate, with a mass percentage content between 1.0% and 3.0%.

2. The intelligent road sound insulation system according to claim 1, characterized in that, It also includes: an ultraviolet LED array, disposed on the inner side of the photosensitive and fluorescent bird-repelling substrate layer; It also includes: an ultrasonic bird repeller, which is installed on the screen unit; The N screen units share an ambient light sensor and a bird activity monitoring device; The ambient light sensor includes: a main sensor, located on the top outer side of the screen unit, for sensing the intensity of natural light; and an auxiliary sensor, located on the inner side of the screen unit facing the road, for sensing the intensity of artificial light in the direction of the road. The intelligent collaborative control system is used to select the corresponding working mode based on the information obtained from the main sensor, auxiliary sensor, and bird activity monitoring device, and control the drive device, ultraviolet LED array, and ultrasonic bird repeller according to the working mode.

3. The intelligent road sound insulation system according to claim 2, characterized in that, The intelligent collaborative control system selects the corresponding working mode based on the following logic: In daytime light transmission mode, when the natural light intensity is higher than the first preset threshold and the illuminance ratio of the main and auxiliary sensors is greater than the preset ratio, the light-blocking curtain is controlled to be in the open state. Dusk or dawn transition mode: when the natural light intensity is between the first preset threshold and the third preset threshold, the light-blocking curtain is controlled to enter a partial light-blocking state. Nighttime safety mode: When the natural light intensity is lower than the third preset threshold and the artificial light intensity is higher than the second preset threshold, the light-blocking curtain will be controlled to enter the light-blocking state. The bird density alarm mode instantly activates enhanced bird deterrence strategies when the bird activity density exceeds the fourth preset threshold, including increasing the output power of the ultraviolet LED array and activating the ultrasonic bird deterrent.

4. The intelligent road sound insulation system according to claim 3, characterized in that, The bird activity monitoring device includes: a bio-radar, which is mounted on the screen unit; The bio-radar is a frequency-modulated continuous wave bio-detection radar or a micro-Doppler radar, wherein one bio-radar is set every M meters, and 20≤M≤100. The intelligent collaborative control system's algorithm library pre-stores micro-Doppler feature templates of bird flight, and the intelligent collaborative control system calculates the matching degree between the real-time target signal from the bio-radar and the micro-Doppler feature templates. Target determination: When the matching degree exceeds the preset matching threshold and the target is within the effective detection area, it is determined to be a "bird target"; Threat assessment: By combining the target's trajectory and velocity vector, the collision risk with the screen is predicted. If the target continues to approach the screen and its velocity vector is pointing towards the screen, it is marked as a "potential threat target". Alarm Trigger: When multiple "bird targets" or a single "potential threat target" are detected simultaneously and remain within a high-risk distance, the "Bird Dense Alarm Mode" is triggered. The high-risk distance is 5m to 30m from the screen unit.

5. The intelligent road sound insulation system according to claim 4, characterized in that, The bird activity monitoring device also includes: an infrared bird monitor, which is mounted on the screen unit; The infrared bird monitor includes: a dual-element or quad-element passive infrared motion sensor and a thermal imaging camera, which are arranged at intervals on the top or side of the screen unit. When a passive infrared motion sensor detects a rapid change in infrared radiation within its field of view, it triggers a primary signal indicating that "motion has occurred." The intelligent collaborative control system executes the following judgment logic: When the passive infrared motion sensor is triggered, or the system is in a high alert period, the thermal imaging camera starts or intensifies its scanning of the area, wherein the high alert period is dusk during the migration season; The thermal imaging image processing algorithm is first used to filter the background temperature, and then hot spots that are higher than the ambient temperature and fall within the size range of birds are identified. The identified hot spots are tracked to analyze their direction and speed. If the hot spot's trajectory is directly towards the screen, or if it repeatedly hovers or lingers in front of the screen, it is considered a high-risk behavior. This high-risk behavior serves as a supplement and verification for bio-radar detection at close range.

6. The intelligent road sound insulation system according to claim 3, characterized in that, The intelligent collaborative control system further includes: a meteorological data interface for receiving wind speed, rainfall, and humidity data from an external meteorological station; the meteorological data interface is connected to the meteorological station or meteorological information providing device via a wireless LoRa communication module or wired communication, wherein, when the wind speed exceeds a preset threshold, the intelligent collaborative control system controls the shading curtain to automatically retract; when the real-time rainfall exceeds a sixth preset threshold, the system restricts the shading curtain from frequently switching between partial shading and full shading states, and / or... The sensor group includes a date clock module; the intelligent collaborative control system corrects the working mode based on the time information of the date clock module; wherein, when it is in a preset nighttime period, the weight of the first preset threshold is reduced; when it is in a preset time period of the high-risk season for migratory birds, the fourth preset threshold of the bird density alarm mode is increased.

7. The intelligent road sound insulation system according to claim 5, characterized in that, The intelligent collaborative control system is an embedded industrial control computer in a regional control cabinet; the regional control cabinets are set at intervals of 500 to 1000 meters along the road. The intelligent collaborative control system adopts a distributed bus hierarchical architecture, including multiple unit control nodes; Each screen unit or several screen units constitute a unit control node; Each unit control node includes a unit controller, which integrates an analog-to-digital converter circuit and an execution drive circuit, for digitally processing the analog signals collected by the sensor group and outputting execution control signals; All unit control nodes form a network topology through a control bus; the control bus is a CAN bus or an industrial-grade RS485 bus; the network topology is a ring network structure or a star structure. The data from the bio-radar and thermal imaging camera are connected to an embedded industrial control computer in the area control cabinet via a network switch for real-time processing.

8. The intelligent road sound insulation system according to any one of claims 1 to 7, characterized in that, In the intelligent light-shielding and sound-absorbing composite layer The guide rail system is an aluminum alloy profile guide rail, fixed to the inner side of the photosensitive and fluorescent bird-repelling substrate layer, and has a built-in cable groove and drive steel cable for the drive device. The light-blocking curtain includes: a film layer, a silver or black PVDF film with a high UV blocking rate; an interlayer, an open-cell melamine foam board with a thickness of 2-10mm; and a pore layer, a waterproof and sound-permeable fabric with a microporous array. The drive unit includes: a main drive motor; a secondary drive motor; a differential transmission mechanism; a tension adjustment mechanism; a wind load adaptive tensioning component; and a self-locking braking component. The main drive motor and the auxiliary drive motor drive the input end of the differential transmission mechanism respectively; the output end of the differential transmission mechanism is connected to the drive cable or drive reel to drive the blackout curtain to rise and fall; the tension adjustment mechanism includes a slidable tension slider and a preload spring assembly to maintain a constant tension force of the blackout curtain at different heights. The wind load adaptive tensioning assembly includes: a counterweight rod disposed at the bottom of the shading curtain; a damping slider disposed inside the guide rail; and an electronically controlled damping adjustment unit electrically connected to the wind speed signal. When the wind speed exceeds the preset threshold, the electronically controlled damping adjustment unit increases the friction damping coefficient of the damping slider to suppress the lateral sway of the shading curtain; the self-locking braking component is set at the output end of the differential transmission mechanism. When the drive device is powered off or malfunctions, the self-locking braking component automatically locks the drive shaft to prevent the shading curtain from falling uncontrollably due to wind load or gravity.

9. The intelligent road sound insulation system according to any one of claims 1 to 7, characterized in that, A microstructured diffuse scattering treatment layer is formed on the outer surface of the diffuse scattering and ultraviolet warning composite layer, and an ultraviolet high reflectance warning pattern is formed on the diffuse scattering treatment layer; the diffuse scattering and ultraviolet warning composite layer includes: The first substrate is an acrylic plate or a polycarbonate plate, and a microstructure diffuse scattering treatment layer is formed on its outer surface. The surface roughness Ra of the microstructure diffuse scattering treatment layer satisfies: 10μm≤Ra≤40μm. A high-reflectance ultraviolet warning pattern is formed on a first substrate. It is a staggered array of circular spots or a striped grid structure, formed by drying a coating material, which, by weight percentage, comprises: The first matrix material is an aliphatic polyurethane acrylate resin, 40%~70%; Carbon black material and nano zinc oxide particles dispersed in the first matrix material, wherein the carbon black material, 0.1%~2%, has a particle size between 10nm and 30nm; and the nano zinc oxide particles, 15%~35%, have a particle size between 50nm and 120nm, and are surface modified by a silane coupling agent.

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