A rotatable photovoltaic sound barrier system for a fence and a control method thereof

Abstract

The application discloses a rotatable photovoltaic sound barrier system for a fence and a control method thereof, comprising: a plurality of photovoltaic sound barrier rotating units, each of which comprises a photovoltaic sound barrier and a control driving system; the photovoltaic sound barrier is vertically arranged above the fence facing the east side or the west side and can rotate around a vertical axis between an initial position parallel to the fence and a working position at a fixed angle deviated to the east or the west of the south under the driving of the control driving system; wherein adjacent photovoltaic sound barriers and the fence are flexibly connected through flexible sound insulation connecting components; the flexible sound insulation connecting components are configured to be stretched and unfolded when the photovoltaic sound barrier rotates to cover the gap generated by the rotation, thereby having a continuous sound insulation surface. The system and method can integrate the photovoltaic sound barrier into the fence facade, adjust the angle to capture more south light, and maintain sound insulation continuity in the rotating state.

Description

Technical Field

[0001] This invention relates to the fields of photovoltaic power generation and environmental noise control technology, and in particular to a rotatable photovoltaic sound barrier system for walls and its control method. Background Technology

[0002] With urban development and the scarcity of land resources, installing photovoltaic sound barriers on the perimeter walls of industrial enterprises to achieve the combined use of "photovoltaics + noise reduction" has become an important development direction.

[0003] Currently, most photovoltaic sound barriers of this type are fixed installations. When a photovoltaic sound barrier is installed vertically on the east or west side of a wall, its photovoltaic power generation surface can only receive optimal sunlight in the morning or evening. Around noon, when the sunlight is strongest, the effective sunlight received by the east-west oriented photovoltaic modules is significantly insufficient, resulting in low overall power generation efficiency. If the photovoltaic modules are simply fixed to the south to improve power generation efficiency, it will disrupt the facade continuity of the wall or sound barrier, affecting aesthetics, and the unplanned space created behind it may pose a safety hazard.

[0004] On the other hand, some researchers have proposed rotatable photovoltaic supports, but their designs are mostly used in open ground power stations and cannot be directly applied to walled scenarios with space constraints and where sound insulation is the primary function. More importantly, when multiple photovoltaic sound barrier units rotate independently, dynamically changing gaps will inevitably be generated between the units, which will seriously damage the overall sound insulation performance of the sound barrier array and cause its core noise reduction function to fail.

[0005] Therefore, this field is based on the development of a rotatable photovoltaic sound barrier system for walls and its control method. This system and method can integrate the photovoltaic sound barrier into the wall facade, intelligently adjust the angle according to time to capture more sunlight from the south, and maintain the continuity of sound insulation while rotating. Summary of the Invention

[0006] The purpose of this application is to provide a rotatable photovoltaic sound barrier system for walls and a control method thereof. This system and method can integrate the photovoltaic sound barrier into the wall facade, intelligently adjust the angle according to time to capture more sunlight from the south, and maintain the continuity of sound insulation while rotating.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a rotatable photovoltaic sound barrier system for perimeter walls, comprising: Multiple photovoltaic sound barrier rotating units are arranged continuously along the wall, each of the photovoltaic sound barrier rotating units includes a photovoltaic sound barrier and a control drive system for driving its rotation; The photovoltaic sound barrier is vertically installed above the wall facing east or west, and can rotate around a vertical axis within a preset first time period between an initial position parallel to the wall and a working position at a fixed angle within the range of 15° to 45° south of east or south of west, driven by the control and drive system. The adjacent photovoltaic sound barriers and the photovoltaic sound barriers and the wall are flexibly connected by flexible sound insulation connection components. The flexible sound-insulating connecting component is configured to be stretched from a folded state to an unfolded state when the photovoltaic sound barrier rotates, so as to cover the gaps generated between the photovoltaic sound barrier and the wall and between adjacent photovoltaic sound barriers due to rotation, thereby providing a continuous sound-insulating surface between the photovoltaic sound barrier and the wall and between adjacent photovoltaic sound barriers during the dynamic rotation of the photovoltaic sound barrier.

[0008] In another preferred embodiment, the photovoltaic sound barrier includes a photovoltaic power generation module and a sound absorption and insulation module or is composed of a single photovoltaic module.

[0009] In another preferred embodiment, the flexible sound-insulating connection component is connected to the frame of the photovoltaic sound barrier.

[0010] In another preferred embodiment, the control drive system is further configured to drive the photovoltaic sound barrier to rotate to the working position during a preset first time period; and to drive the photovoltaic sound barrier back to the initial position and lock it during periods other than the first time period, wherein the preset first time period is a period between 9:00 a.m. and 3:00 p.m. local time.

[0011] In another preferred embodiment, each photovoltaic sound barrier rotating unit further includes a steel column and a base, the steel column being fixed above the wall via the base, and the photovoltaic sound barrier being vertically inserted into the steel column; and the flexible sound insulation connection component includes a first flexible sound insulation connection component, a second flexible sound insulation connection component, and a third flexible sound insulation connection component, the first flexible sound insulation connection component being used to connect two adjacent photovoltaic sound barriers; The second flexible sound insulation connection component is located on the left side of the base and is used to connect the photovoltaic sound barrier and the wall. The third flexible sound insulation connection component is located on the right side of the base and connects the photovoltaic sound barrier and the wall.

[0012] In another preferred embodiment, the flexible sound-insulating connecting component has a foldable structure and its material can be rubber.

[0013] In another preferred embodiment, each photovoltaic sound barrier rotating unit further includes a steel column and a base. The steel column is fixed above the wall via the base. The photovoltaic sound barrier is vertically inserted into the steel column. The control and drive system is integrated into the base and drives the photovoltaic sound barrier to rotate around the steel column as the central axis.

[0014] In another preferred embodiment, the steel column is located on the central axis of the photovoltaic sound barrier.

[0015] In another preferred embodiment, the steel column has a hollow structure, and the photovoltaic sound barrier is connected to the steel column via a slewing bearing. The steel column is connected to the inner ring of the slewing bearing, and the photovoltaic sound barrier is connected to the outer ring of the slewing bearing.

[0016] In another preferred embodiment, the control drive system includes a drive module, which includes a drive motor and a reducer. The output end of the reducer meshes with the gear ring of the outer ring of the slewing bearing through a gear, so that the rotation of the reducer drives the outer ring of the slewing bearing to rotate, thereby driving the photovoltaic sound barrier to rotate.

[0017] In another preferred embodiment, the control drive system further includes a control module, which comprises a controller, an absolute rotary encoder, and a positioning and timing module (BDS / GPS system); wherein, The absolute rotary encoder is configured to provide real-time feedback of the absolute rotation angle of the photovoltaic sound barrier relative to the initial position, and the positioning and timing module BDS / GPS system is configured to provide the controller with accurate local time. The controller is configured to control the drive module to drive the photovoltaic sound barrier and maintain it in the working position based on feedback from the absolute rotary encoder and the positioning and timing module BDS / GPS system; and to control the drive module to drive the photovoltaic sound barrier back to the initial position and lock it during periods other than the first time period.

[0018] In another preferred embodiment, the control drive system further includes a wind speed sensor; the controller is also configured to: when the wind speed detected by the wind speed sensor exceeds a preset threshold, control the drive module to reset the photovoltaic sound barrier to the initial position and lock it.

[0019] In another preferred embodiment, the control drive system further includes a conductive slip ring assembly disposed within the base, which is used to realize the continuous transmission of electrical energy and / or control signals during the rotation of the photovoltaic sound barrier.

[0020] In another preferred embodiment, the system further includes a locking structure configured to lock the photovoltaic sound barrier in an initial position.

[0021] In another preferred embodiment, the locking structure includes: The card slot assembly is fixed to the lower end of the frame at both ends of the photovoltaic sound barrier, and its inner wall is provided with an elastic buffer layer. The latch assembly, correspondingly fixed to the top of the wall, includes: an electromagnetically driven telescopic latch and a locking spring linked to the latch; When the photovoltaic sound barrier rotates back to its initial position, the control drive system sends a locking signal to the electromagnetically driven telescopic pin, which extends and embeds into the slot to achieve mechanical locking. When rotation is required, the control system first sends an unlocking signal, the pin retracts, and the lock is released.

[0022] In another preferred embodiment, each photovoltaic sound barrier rotates synchronously under the drive of its respective control and drive system. More preferably, each photovoltaic sound barrier rotates synchronously by the same angle under the drive of its respective control and drive system.

[0023] This application also provides a control method for the above-mentioned rotatable photovoltaic sound barrier system, comprising the following steps: Within a preset first time period, the photovoltaic sound barrier is controlled to rotate from an initial position parallel to the wall to a working position at a fixed angle within a range of 15° to 45° south of east or south of west. The preset first time period is a period from 9:00 AM to 3:00 PM local time. During periods outside the first time period, the photovoltaic sound barrier is controlled to reset to the initial position.

[0024] Compared with the prior art, this application has at least one of the following advantages: (a) The rotatable photovoltaic sound barrier system and its control method for the wall of this application deflects the photovoltaic modules vertically arranged on the east and west walls to the south at regular intervals, which significantly increases the amount of sunlight received during the strongest period of day. According to simulation calculations, it can increase the average daily power generation by nearly 15% compared with fixed vertical installation, solves the core problem of low power generation efficiency of photovoltaic sound barriers on the east and west walls, and achieves high-efficiency power generation. (b) The rotatable photovoltaic sound barrier system for the wall of this application adopts innovative flexible sound insulation connection components to ensure that there are no direct sound leakage gaps between units or between units and the wall in any state of rotation or stillness of the photovoltaic sound barrier unit. This ensures that its core noise reduction function as a sound barrier is not weakened under any working condition, and achieves full-condition guarantee of sound insulation performance. (c) The rotatable photovoltaic sound barrier system for the wall of this application can be reset to be flush with the wall during non-peak power generation periods (such as morning, evening, and night), maintaining the regularity and aesthetics of the building facade and avoiding the space occupation and visual abruptness caused by permanent tilted structures. (d) The rotatable photovoltaic sound barrier system and its control method for the wall of this application creatively achieve an intelligent time-based balance between power generation efficiency and noise reduction effect. During the day when the noise standard is relatively relaxed, the system preferentially deflects the power generation. At this time, although the sound insulation performance is slightly lower than the optimal state at the initial position, it fully meets the daytime standard. At night when the noise standard is more stringent, the system resets to be parallel to the wall, so that the flexible sound insulation components are in the optimal folded and sealed state, providing a high-performance sound insulation effect and strictly meeting the nighttime standard. This design ensures that the comprehensive benefits of the system are maximized under the premise of compliance at all times. (e) The rotatable photovoltaic sound barrier system for walls of this application is intelligent and reliable in operation. The entire system achieves fully automatic operation based on accurate time synchronization and angle feedback, and integrates multiple safety mechanisms such as wind speed over-limit protection and automatic reset. It is stable and reliable in operation and has low daily maintenance requirements.

[0025] It should be understood that, within the scope of this invention, the above-described technical features of this invention and the technical features specifically described below (such as in the embodiments) can be combined with each other to form new or preferred technical solutions. Due to space limitations, they will not be described in detail here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. It should be understood that the accompanying drawings described below are merely some implementation examples of the present invention, and those skilled in the art can obtain other implementation examples based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram showing the initial position of the photovoltaic sound barrier of the present invention, which is parallel to the east or west side of the enclosure wall; Figure 2 This is a schematic diagram of one structure of the photovoltaic sound barrier of the present invention; Figure 3 This is a schematic diagram showing the photovoltaic sound barrier of the present invention located at a fixed angle position of south-southeast or south-southwest. Figure 4 This is a schematic diagram of the photovoltaic sound barrier locking structure of the present invention; Figure 5 This is a flowchart of the photovoltaic sound barrier rotation control method of the present invention.

[0028] The labels in the attached figures are as follows: 1- Photovoltaic sound barrier 11-Photovoltaic power generation module 12-Sound Absorption and Insulation Module 2-Steel Columns 3-Slewing bearing 4-Base 5- Flexible sound insulation connection components 51-First Flexible Sound Insulation Connection Component 52-Second flexible sound insulation connection component 53-Third Flexible Sound Insulation Connection Component 6-Locking Structure 7. Fence. Detailed Implementation

[0029] Through extensive and in-depth research, the inventors have developed for the first time a rotatable photovoltaic sound barrier system and method for use on perimeter walls. For photovoltaic sound barriers vertically installed on the east or west side of a perimeter wall, the system can achieve timed and directional southward rotation to significantly increase the power generation of the photovoltaic modules. Furthermore, during rotation, an adaptive connection structure maintains continuous sound insulation, thereby preserving overall sound insulation performance and achieving a dynamic balance between overall performance improvement and intelligent compliant operation. Specifically, it achieves an intelligent, time-based balance between power generation efficiency and noise reduction effect, effectively improving the overall system benefits. The rotatable photovoltaic sound barrier system and method for perimeter walls of this application are applicable to scenarios with noise reduction requirements, such as transportation hubs, converter stations, substations, power plants, and other industrial enterprises.

[0030] In the following description, many technical details are presented to help the reader better understand this application. However, those skilled in the art will understand that the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments.

[0031] the term As used herein, the terms “photovoltaic sound barrier” and “photovoltaic sound barrier unit” are used interchangeably; In this invention, all directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] To make the objectives, technical solutions, and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that these are merely examples provided to the reader of possible implementations of the present invention and are not intended to limit the scope of the invention.

[0033] A rotatable photovoltaic sound barrier system for fencing See Figures 1-5 This application provides a rotatable photovoltaic sound barrier system for a wall, comprising: a plurality of photovoltaic sound barrier rotating units arranged continuously along the wall, each of the photovoltaic sound barrier rotating units comprising a photovoltaic sound barrier 1 and a control drive system for driving its rotation; In one embodiment, the photovoltaic sound barrier 1 is an integral unit, consisting of a photovoltaic power generation module 11 and a sound absorption and insulation module 12, wherein the photovoltaic power generation module faces the outer side of the wall and the sound absorption and insulation module faces the inner side of the wall (sound source side), or the photovoltaic sound barrier 1 is composed of a single photovoltaic module. The photovoltaic sound barrier 1 is vertically installed on the wall 7 along the east or west side, and its initial position is parallel to the surface of the wall 7, forming a continuous facade.

[0034] In one embodiment, the system further includes a steel column 2 and a base 4. The steel column 2 is fixed to the top of the wall via the base 4 and is located at the central axis of the photovoltaic sound barrier 1. The photovoltaic sound barrier 1 can be vertically inserted into the steel column 2. A control drive system is integrated into the base 4 at the bottom of the steel column 2 and is used to drive the photovoltaic sound barrier 1 to rotate around the steel column 2 as the central axis.

[0035] In one embodiment, the control drive system is configured to: during a preset first time period (daytime high-efficiency power generation period), drive the photovoltaic sound barrier 1 to rotate around the steel column 2 as the central axis, so that it turns from an initial position parallel to the wall to a fixed angle within the range of 15° to 45° south-east or south-west, so as to maximize the reception of south-facing sunlight; at other times outside this time period, drive the photovoltaic sound barrier 1 to reset to the initial position parallel to the wall 7 and lock it.

[0036] In one embodiment, adjacent photovoltaic sound barriers 1 and the photovoltaic sound barrier 1 and the wall 7 are flexibly connected by flexible sound insulation connection components 5; Preferably, the flexible sound insulation connection component 5 includes a first flexible sound insulation connection component 51, a second flexible sound insulation connection component 52 and a third flexible sound insulation connection component 53, wherein the first flexible sound insulation connection component 51 is used to connect two adjacent photovoltaic sound barriers; The second flexible sound insulation connection component 52 is located on the left side of the base 4 and is used to connect the photovoltaic sound barrier 1 and the wall. The third flexible sound insulation connection component 53 is located on the right side of the base 4 and connects the photovoltaic sound barrier 1 and the wall 7.

[0037] That is, in a system consisting of multiple photovoltaic sound barrier units arranged continuously, adjacent units (e.g., gaps between adjacent units) are connected by a first flexible sound insulation connection component 51, and the gaps between the units and the wall 7 are connected by second and third flexible sound insulation connection components. The two ends of the flexible sound insulation connection component 51 are flexibly connected to the side frames of adjacent units and between the unit side frames and the wall, respectively. When adjacent units rotate synchronously in the same direction, the first to third flexible sound-insulating connecting components are stretched out to cover or fill the gaps between the two units or between the unit and the wall caused by the rotation. When the unit returns to its original position, the connecting components fold down, thus maintaining the physical continuity of the sound-insulating surface throughout the dynamic rotation.

[0038] Preferably, the flexible sound insulation connection component 5 is foldable, and the material can be damping materials such as rubber.

[0039] Preferably, the connection structure between the steel column 2 and the photovoltaic sound barrier 1 includes: a section of the steel column 2 is a hollow structure, and its outer wall is connected to the frame of the photovoltaic sound barrier 1 through at least one slewing bearing 3.

[0040] Preferably, the control drive system includes: The drive module includes a drive motor and a reducer. The output end of the reducer meshes with the gear ring of the slewing bearing 3 through a gear.

[0041] The control module includes an absolute rotary encoder, a positioning and timing module BDS system / GPS system, and a controller. The absolute rotary encoder has its shaft coupled to the rotating part of the photovoltaic sound barrier 1, and is used to provide real-time feedback on the absolute rotation angle of the photovoltaic sound barrier 1 relative to the initial position. The positioning and timing module (BDS / GPS system) is used to obtain accurate local time. The controller has preset control logic. The control logic sets a first time period within the range of 9:00 AM to 3:00 PM local time, and sets a fixed target angle within the range of 15° to 45° south of east or south of west. During the first time period, the controller controls the drive mechanism to adjust and maintain the photovoltaic sound barrier 1 at the target angle based on the feedback from the absolute rotary encoder. A wind speed sensor is used to monitor the ambient wind speed. The controller is also configured to: when the wind speed detected by the wind speed sensor exceeds a preset threshold, regardless of the time of day, control the drive mechanism to drive the photovoltaic sound barrier 1 back to its initial position parallel to the wall and lock it. The conductive slip ring assembly is installed in the base 4 at the bottom of the steel column 2. It is used to realize the continuous transmission of the power generated by the photovoltaic sound barrier 1 and the control signal between the rotating part and the fixed part during the rotation of the photovoltaic sound barrier 1.

[0042] Preferably, the core electronic control components of the control drive system are integrated in a modular form within the base 4 at the bottom of the steel column 2, and the base 4 is provided with an inspection port.

[0043] In one embodiment, the method for rotating the photovoltaic sound barrier 1 comprises the following control steps: In the initial state, the photovoltaic sound barrier 1 is placed vertically on the wall 7 and parallel to its facade; Within the preset first time period (a time period from 9:00 AM to 3:00 PM local time, the specific time to be determined according to local conditions), drive the photovoltaic sound barrier 1 to rotate around the steel column 2 as the central axis, so that it rotates from the initial position parallel to the wall 7 to a fixed angle within the range of 15° to 45° south of east or south of west. During periods other than the first time period, drive the photovoltaic sound barrier 1 to reset to its initial position and lock it.

[0044] Optionally, the rotatable photovoltaic sound barrier system for a wall of this application also includes a locking structure 6. The locking structure 6 includes: a slot assembly, fixed to the lower end of the frame at both ends of the photovoltaic sound barrier 1, and having an elastic buffer layer on its inner wall; and a pin assembly, correspondingly fixed to the top of the wall 7, including: an electromagnetically driven telescopic pin and a locking spring linked to the pin; When the sound barrier 1 rotates back to its initial position, the control drive system sends a locking signal to the electromagnetically driven telescopic pin, which extends and embeds into the slot to achieve mechanical locking. When rotation is required, the control system first sends an unlocking signal, the pin retracts, and the lock is released.

[0045] Example 1 This application provides a rotatable photovoltaic sound barrier system for use on a perimeter wall, installed on the east (west) side wall. See [link to relevant documentation]. Figure 1 and Figure 2 The system in this embodiment includes a photovoltaic sound barrier 1, steel columns 2, and a control and drive system. The photovoltaic sound barrier 1 is composed of a photovoltaic module module 11 serving as a backsheet and a sound absorption and insulation module 12. It is vertically installed on the east side wall 7, and is parallel to the wall facade.

[0046] The steel column 2 is fixed to the top of the wall 7 via a bottom base 4. The column is made of hollow steel pipe, and its bottom base has an inspection port. The frame of the photovoltaic sound barrier 1 is connected to the outer wall of the steel column 2 via a large slewing bearing 3. The inner ring of the slewing bearing 3 is welded and fixed to the steel column 2, and the outer ring is fixed to the barrier frame, thereby allowing the barrier to rotate around the steel column 2.

[0047] The control and drive system is integrated inside the base 4 at the bottom of the steel column 2. It mainly includes: Drive module: Consists of a servo motor and a planetary gear reducer connected to it. The output gear of the reducer meshes with the internal gear of the outer ring of the slewing bearing 3.

[0048] Control module: includes controller, BDS / GPS timing module, and absolute multi-turn rotary encoder. The encoder shaft rotates synchronously with the outer ring of slewing bearing 3 via a coupling to measure the absolute rotation angle of the barrier in real time (0° is defined as the initial position parallel to the wall).

[0049] Power supply and communication module: including a conductive slip ring installed inside the base 4, used to transmit the power and signals generated by the photovoltaic.

[0050] See Figures 1-4 The two adjacent photovoltaic sound barriers 1 and the photovoltaic sound barrier 1 and the wall 7 are connected by the first to the third flexible sound insulation connecting parts (such as rubber). When the two adjacent barriers 1 rotate synchronously, the first to the third flexible sound insulation connecting parts 5 are gradually stretched from the folded state to the unfolded state, forming a continuous sound insulation surface, effectively covering the gap and ensuring the sound insulation effect.

[0051] The system workflow is as follows: Initial state (e.g., from 3 PM to 9 AM the following morning): The control drive system drives the photovoltaic sound barrier unit 1 and holds it at 0° (parallel to the east wall 7) and locks it. At this time, the flexible sound insulation connection component 5 is in a folded state. The photovoltaic modules can receive sunlight before dawn and sunset.

[0052] Daytime power generation (9:00 AM to 3:00 PM): The BDS / GPS timing module provides accurate time. When local time reaches 9:00 AM, the controller, according to a preset program, issues a command to rotate the target angle to 45° west of south clockwise. The controller reads the current angle value from the encoder, calculates the deviation, and then starts the servo motor. The motor, through a reducer and gears, drives the outer ring of the slewing bearing 3, along with the entire barrier 1, to rotate slowly. The encoder provides real-time angle feedback until it reaches 45° and stops. The barrier maintains this angle, increasing the south-facing area of ​​the photovoltaic modules and efficiently receiving southerly sunlight. During this process, adjacent barriers rotate synchronously, and the flexible sound insulation connection component 5 is stretched and extended to maintain sound insulation continuity.

[0053] Reset Status: When the time exceeds 15:00 local time, the controller issues a command to return to 0°. The drive system rotates barrier 1 counterclockwise until the encoder confirms the reset to the initial 0° position and locks it. The flexible sound insulation connection component 5 returns to its folded state.

[0054] Safety protection: A wind speed sensor is installed inside the base 4. If the wind speed exceeds the local limit, the controller will immediately stop any current action and force the barrier to be driven to the 0° position (minimum windward side) and locked.

[0055] To study its power generation effect, PVsyst software was used to simulate and calculate the annual power generation of photovoltaic sound barrier 1 under the above conditions. The annual power generation of photovoltaic sound barrier 1, which is always fixed in its initial position with the same installed capacity, was used as a benchmark for comparison. Solar radiation, temperature, and humidity were all taken into account Shanghai's climate conditions. The simulation results show that the rotating photovoltaic sound barrier can increase the annual power generation by nearly 15% compared to the fixed photovoltaic sound barrier.

[0056] Example 2 This application provides a method for controlling the rotation of a photovoltaic sound barrier, applied to the aforementioned system. See also... Figure 5 The method includes the following steps: S1: System initialization, drive the photovoltaic sound barrier 1 to the initial position (0°) parallel to the wall.

[0057] S2: The controller continuously acquires the accurate local time.

[0058] S3: Determine if the current time has entered the preset daytime power generation period (e.g., 9:00-15:00). If not, maintain the initial position of S1.

[0059] S4: If so, the controller calculates the preset target angle of south by east / west (e.g., 45°) and obtains the current actual angle fed back by the rotary encoder.

[0060] S5: Drive the motor to rotate the barrier until the actual angle equals the target angle, and maintain that position.

[0061] S6: Determine if the daytime power generation period has ended. If it has not ended, return to S4 for fine-tuning and maintenance; if it has ended, execute S7.

[0062] S7: Drive the barrier to rotate until it returns to its initial position (0°).

[0063] S8: Real-time parallel monitoring of wind speed. If the speed exceeds the limit, immediately switch to S7 to perform an emergency reset.

[0064] Example 3 In this embodiment, optionally, the control module further includes a light intensity sensor and a power grid dispatch communication interface. The controller of the control module is pre-configured with more advanced control logic. Light Adaptive Mode: During the preset "first time period" (e.g., 9:00-15:00), the controller not only reads the data from the light intensity sensor in real time, but also reads the data from the light intensity sensor. When the light intensity is lower than the preset threshold (e.g., on a cloudy or rainy day), the controller can determine that rotating to the south will have limited effect on increasing power generation. To reduce mechanical wear and energy consumption, the controller can keep the photovoltaic sound barrier 1 in its initial position (0°) or rotate it by only a small base angle.

[0065] Grid Interaction Mode: The controller receives real-time electricity price signals or peak-shaving instructions from the grid through the grid dispatch communication interface. During peak grid load periods and periods with high electricity prices, even outside the usual "first period" (e.g., 16:00-18:00 on summer weekday afternoons), the controller can temporarily drive the photovoltaic sound barrier 1 to rotate to the working position to maximize power generation, participate in grid peak shaving, and improve system economy. When the grid issues instructions requiring reduced output or safety verification, the system can automatically reset to the initial position.

[0066] Example 4 In this embodiment, optionally, the flexible sound-insulating connection component 5 is made of a composite smart material, which includes at least: Shape memory alloy wire mesh layer: woven into a rubber matrix. When the ambient temperature or the current changes, this layer can actively adjust its unfolding shape to achieve a tighter "adaptive filling" of the gaps generated by rotation, rather than relying entirely on mechanical stretching, thus maintaining excellent sealing performance under extreme weather conditions (such as high temperature expansion and low temperature contraction).

[0067] Self-healing polymer coating: Applied to the surface of the flexible soundproof connection component 5. When the component develops micro-cracks due to long-term use or accidental scratches, the microcapsules in the coating rupture and release a repair agent, which can automatically repair the damage under certain conditions, greatly extending the maintenance cycle and service life of key sealing components.

[0068] Adjustable damping layer: Contains electrorheological or magnetorheological fluid materials. The controller can actively apply an electric or magnetic field based on wind speed sensor signals or noise monitoring signals to change the viscoelasticity of this layer, thereby adjusting the damping characteristics of the flexible sound-insulating connection component 5 in real time. Enhanced damping at high wind speeds suppresses vibration, while adjusted damping at specific noise frequencies achieves targeted sound absorption and insulation, further optimizing the system's sound insulation and safety performance.

[0069] It should be noted that in this patent application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. In this patent application, if it refers to performing an action according to an element, it means performing the action at least according to that element, including two cases: performing the action only according to that element, and performing the action according to that element and other elements. Expressions such as "multiple," "repeatedly," and "various" include two, two times, two kinds, and more than two, more than two times, and more than two kinds.

[0070] All documents mentioned in this application are considered to be incorporated in their entirety into the disclosure of this application so that they can serve as a basis for modifications if necessary. Furthermore, it should be understood that after reading the foregoing disclosure of this application, those skilled in the art can make various alterations or modifications to this application, and these equivalent forms also fall within the scope of protection claimed in this application.

Claims

1. A rotatable photovoltaic sound barrier system for perimeter walls, characterized in that, include: Multiple photovoltaic sound barrier rotating units are arranged continuously along the wall, each of the photovoltaic sound barrier rotating units includes a photovoltaic sound barrier and a control drive system for driving its rotation; The photovoltaic sound barrier is vertically installed above the wall facing east or west, and can rotate around a vertical axis within a preset first time period between an initial position parallel to the wall and a working position at a fixed angle within the range of 15° to 45° south of east or south of west, driven by the control and drive system. The adjacent photovoltaic sound barriers and the photovoltaic sound barriers and the wall are flexibly connected by flexible sound insulation connection components. The flexible sound-insulating connecting component is configured to be stretched from a folded state to an unfolded state when the photovoltaic sound barrier rotates, so as to cover the gaps generated between the photovoltaic sound barrier and the wall and between adjacent photovoltaic sound barriers due to rotation, thereby providing a continuous sound-insulating surface between the photovoltaic sound barrier and the wall and between adjacent photovoltaic sound barriers during the dynamic rotation of the photovoltaic sound barrier.

2. The system according to claim 1, characterized in that, The control drive system is also configured to drive the photovoltaic sound barrier to rotate to the working position during a preset first time period; and to drive the photovoltaic sound barrier back to the initial position and lock it during periods other than the first time period. The preset first time period is a period from 9:00 a.m. to 3:00 p.m. local time.

3. The system according to claim 1, characterized in that, Each photovoltaic sound barrier rotating unit also includes a steel column and a base. The steel column is fixed to the top of the wall via the base, and the photovoltaic sound barrier is vertically inserted into the steel column. The flexible sound insulation connection component includes a first flexible sound insulation connection component, a second flexible sound insulation connection component, and a third flexible sound insulation connection component. The first flexible sound insulation connection component is used to connect two adjacent photovoltaic sound barriers. The second flexible sound insulation connection component is located on the left side of the base and is used to connect the photovoltaic sound barrier and the wall. The third flexible sound insulation connection component is located on the right side of the base and connects the photovoltaic sound barrier and the wall.

4. The system according to claim 3, characterized in that, The flexible sound insulation connection component has a foldable structure and its material can be rubber.

5. The system according to claim 1, characterized in that, Each photovoltaic sound barrier rotating unit also includes a steel column and a base. The steel column is fixed above the wall by the base. The photovoltaic sound barrier is vertically inserted into the steel column. The control and drive system is integrated into the base and drives the photovoltaic sound barrier to rotate around the steel column as the central axis.

6. The system according to claim 5, characterized in that, The steel column has a hollow structure. The photovoltaic sound barrier is connected to the steel column through a slewing bearing. The steel column is connected to the inner ring of the slewing bearing, and the photovoltaic sound barrier is connected to the outer ring of the slewing bearing.

7. The system according to claim 6, characterized in that, The control and drive system includes a drive module, which includes a drive motor and a reducer. The output end of the reducer meshes with the gear ring of the outer ring of the slewing bearing through a gear, so that the rotation of the reducer drives the outer ring of the slewing bearing to rotate, thereby driving the photovoltaic sound barrier to rotate.

8. The system according to claim 7, characterized in that, The control and drive system further includes a control module, which comprises a controller, an absolute rotary encoder, and a positioning and timing module (BDS / GPS system); wherein... The absolute rotary encoder is configured to provide real-time feedback of the absolute rotation angle of the photovoltaic sound barrier relative to the initial position, and the positioning and timing module BDS / GPS system is configured to provide the controller with accurate local time. The controller is configured to control the drive module to drive the photovoltaic sound barrier and maintain it in the working position based on feedback from the absolute rotary encoder and the positioning and timing module BDS / GPS system; and to control the drive module to drive the photovoltaic sound barrier back to the initial position during periods other than the first time period.

9. The system according to claim 7, characterized in that, The control and drive system also includes a wind speed sensor; the controller is further configured to: when the wind speed detected by the wind speed sensor exceeds a preset threshold, control the drive module to reset the photovoltaic sound barrier to the initial position and lock it.

10. A control method for a rotatable photovoltaic sound barrier system according to any one of claims 1-9, characterized in that, Includes the following steps: Within a preset first time period, the photovoltaic sound barrier is controlled to rotate from an initial position parallel to the wall to a working position at a fixed angle within a range of 15° to 45° south of east or south of west. The preset first time period is a period from 9:00 AM to 3:00 PM local time. During periods outside the first time period, the photovoltaic sound barrier is controlled to reset to the initial position and locked.

Images