Outdoor large screen anti-bird method and device based on low-frequency pulse signals and medium

Abstract

The invention discloses an outdoor large screen anti-bird method and device based on low-frequency pulse signals and a medium, belongs to the technical field of intelligent control, and is used for solving the problems that an existing outdoor LED display screen anti-bird technology is relatively traditional, and many limitations exist in physical bird repelling, ultrasonic bird repelling, chemical bird repelling and other means. And the technical problem of difficulty in convenient, safe, environment-friendly and long-acting bird prevention of the outdoor LED large screen is solved. The method comprises the following steps: carrying out cascade control on environment sensing data and own initial parameters of the outdoor large screen, and determining initial low-frequency pulse data; generating initial low-frequency pulse emission data based on the initial low-frequency pulse data; performing dynamic feedback control on the initial low-frequency pulse emission data to obtain real-time low-frequency pulse emission data; performing maintenance control on the initial low-frequency pulse emission data to obtain steady-state low-frequency pulse emission data; the real-time low-frequency pulse emission data and the steady-state low-frequency pulse emission data are stored, and a bird repelling strategy is optimized.

Description

Technical Field

[0001] The present application relates to the field of intelligent control, and in particular to a method, device and medium for preventing birds from outdoor large screens based on low-frequency pulse signals. Background Art

[0002] With the widespread use of outdoor LED displays, the problem of birds roosting and nesting on the screen surfaces or internal structures has become increasingly prominent. Bird activity not only affects the display quality, but their droppings can corrode the screen material, and their nesting materials can clog heat dissipation holes, even causing short circuits in severe cases. Current common bird prevention measures, such as physical isolation nets and ultrasonic bird repellents, have many limitations.

[0003] The existing bird-repellent technologies and their shortcomings are as follows: ① Physical bird-repellent nets: affect display effects, hinder heat dissipation, and are difficult to install and maintain; ② Ultrasonic bird repellents: high-frequency ultrasound may have potential effects on the human body, and birds are prone to adapt; ③ Visual bird-repellent devices: such as reflective sheets, natural enemy models, etc., have obvious initial effects but birds quickly adapt; ④ Chemical bird repellents: There is an environmental pollution risk, frequent replenishment is required, and the effect is poorly sustained; ⑤ High-voltage pulses: There are safety hazards, may harm birds, and do not meet animal protection requirements.

[0004] Therefore, it is urgent to use low-frequency pulse signals to design a convenient, safe, environmentally friendly and long-lasting outdoor LED large screen bird prevention method. Summary of the Invention

[0005] The embodiments of the present application provide a method, device and medium for preventing birds from outdoor large screens based on low-frequency pulse signals, which are used to solve the following technical problems: the existing outdoor LED display screen bird prevention technology is relatively traditional, and physical bird repellent, ultrasonic bird repellent and chemical bird repellent methods have many limitations, making it difficult to achieve convenient, safe, environmentally friendly and long-lasting outdoor LED large screen bird prevention.

[0006] The embodiments of this application adopt the following technical solutions:

[0007] On the one hand, an embodiment of the present application provides a method for preventing birds from outdoor large screens based on low-frequency pulse signals, including: cascading control of the environmental perception data of the outdoor large screen and its own initial parameters according to the self-test data of the low-frequency pulse signal generating device to determine the initial low-frequency pulse data; generating initial low-frequency pulse emission data based on the initial low-frequency pulse data; performing dynamic feedback control on the initial low-frequency pulse emission data through a dynamic response strategy under the influence of triggering to obtain real-time low-frequency pulse emission data; maintaining control of the initial low-frequency pulse emission data based on a static response strategy without triggering to obtain steady-state low-frequency pulse emission data; storing the real-time low-frequency pulse emission data and the steady-state low-frequency pulse emission data as data and optimizing the bird-repelling strategy.

[0008] The embodiment of the present application utilizes the characteristics of low-frequency pulse signals and accurately controls parameters such as the frequency, pulse width, and duty cycle of the signal, so that the signal can not only effectively drive away birds, but also avoid adverse effects on the display function of the LED large screen and the surrounding environment. Low-frequency signals have good diffraction capabilities when propagating in the air and can penetrate some obstacles, ensuring that the signal can cover every corner around the large screen, including some hidden habitats. At the same time, it is equipped with a complete environmental perception sensor and an intelligent control module, which can automatically adjust the transmission parameters of the pulse signal according to different environmental conditions and bird activities. This intelligent control method greatly improves the flexibility and effectiveness of the bird prevention method, enabling it to adapt to various complex outdoor environmental changes and always maintain a good bird prevention effect.

[0009] In a feasible embodiment, based on the self-test data of the low-frequency pulse signal generating device, the environmental perception data of the outdoor large screen and its own initial parameters are cascade-controlled to determine the initial low-frequency pulse data, specifically including: performing hardware self-test control on the low-frequency pulse signal generating device to obtain the self-test data; wherein the self-test data at least includes: power supply stability, oscillation circuit and power method module; when the self-test data are all self-test pass results, real-time data collection of environmental factors around the outdoor large screen is performed through a preset environmental perception sensor to obtain the environmental perception data; wherein the environmental perception data at least includes: light, temperature, humidity, motion sensing characteristics and seasonal characteristics; performing feature weighted calculation under multiple factors on the environmental perception data to obtain the current environmental perception score at each factor level; based on the current environmental perception score, performing cascade control on the initial parameters of the control module in the outdoor large screen under multiple factors to obtain the initial low-frequency pulse data; wherein the initial low-frequency pulse data includes: initial frequency, pulse width, duty cycle and emission period.

[0010] In a feasible embodiment, based on the initial low-frequency pulse data, initial low-frequency pulse transmission data is generated, specifically including: performing signal analysis on the initial low-frequency pulse data through an oscillation circuit to determine a basic low-frequency signal; and converting and processing the basic low-frequency signal through a pulse modulation circuit to obtain pulse information; performing signal enhancement on the pulse signal through a power amplifier, and outputting a value signal to a transmitting antenna to obtain initial low-frequency pulse signal generation data; based on the surface of an outdoor large screen in a specific direction and the corresponding surrounding area, and through the initial low-frequency pulse signal generation data, controlling the antenna to perform directional transmission of the pulse signal, covering and obtaining directional transmission range data; according to the initial low-frequency pulse signal generation data and the directional transmission range data, controlling the antenna to perform periodic signal transmission to obtain initial low-frequency pulse transmission data under intermittent transmission.

[0011] In one feasible embodiment, before performing dynamic feedback control on the initial low-frequency pulse transmission data to obtain real-time low-frequency pulse transmission data through a dynamic response strategy under triggering, the method further includes: performing real-time sensing processing of the current environment through an environmental perception sensor to determine environmental change response data; performing a step-by-step data comparison between the environmental change response data and the environmental perception data under multiple factors to obtain environmental feedback change data; determining an environmental dynamic response strategy under environmental change response based on the environmental feedback change data; wherein the environmental dynamic response strategy is used to optimize and adjust the initial low-frequency pulse transmission data under real-time environmental changes; performing regional triggering judgment on the bird flight trajectory through a motion sensor to determine trajectory response data; and performing a threshold judgment on the bird's stay time to determine stay response data; wherein the bird's stay time is the time the bird stays on the outdoor large screen; generating a bird activity dynamic response strategy based on the trajectory response data and the stay response data; wherein the bird activity dynamic response strategy is used to optimize the initial low-frequency pulse transmission data under real-time bird activity; wherein the dynamic response strategy includes: the environmental dynamic response strategy and the bird activity dynamic response strategy.

[0012] In a feasible embodiment, the dynamic response strategy under the triggering influence is used to dynamically feedback control the initial low-frequency pulse emission data to obtain real-time low-frequency pulse emission data, specifically including: if the dynamic response strategy is the environmental dynamic response strategy, then extracting the environmental change characteristics in the environmental dynamic response strategy, and based on the environmental change characteristics, adaptively adjusting multiple parameters in the initial low-frequency pulse emission data to obtain low-frequency pulse emission data under environmental factors; if the dynamic response strategy is the bird activity dynamic response strategy, then extracting the first bird activity characteristic in the bird activity dynamic response strategy, and based on the first bird activity characteristic, adaptively adjusting the initial low-frequency pulse emission data to obtain low-frequency pulse emission data under environmental factors. Adaptively adjust multiple parameters in the data to obtain first low-frequency pulse emission data under bird activity factors; after executing the first low-frequency pulse emission data, if the motion sensor detects and generates a secondary bird activity dynamic response strategy, extract the second bird activity feature in the secondary bird activity dynamic response strategy, and adaptively adjust multiple parameters in the first low-frequency pulse emission data to obtain second low-frequency pulse emission data under bird activity; iterate until no bird activity dynamic response strategy is generated; and associate the low-frequency pulse emission data under environmental factors with the low-frequency pulse emission data under bird activity factors to obtain the real-time low-frequency pulse emission data.

[0013] In a feasible implementation manner, based on a static response strategy without trigger influence, the initial low-frequency pulse emission data is maintained and controlled to steady-state low-frequency pulse emission data, specifically including: if neither an environmental dynamic response strategy nor a bird activity dynamic response strategy exists, the current low-frequency pulse control strategy is determined to be the static response strategy without trigger influence; based on the static response strategy, the initial low-frequency pulse emission data is recorded and stored to the original low-frequency pulse control strategy; after the dynamic response strategy is executed and in the static response strategy, the current low-frequency pulse emission data is recorded and stored to the updated low-frequency pulse control strategy; the original low-frequency pulse control strategy and the updated low-frequency pulse control strategy are respectively subjected to strategy maintenance control, and determined to be the steady-state low-frequency pulse emission data.

[0014] In a feasible implementation manner, the real-time low-frequency pulse emission data and the steady-state low-frequency pulse emission data are stored and the bird-repelling strategy is optimized, specifically including: marking and packaging the real-time low-frequency pulse emission data and the steady-state low-frequency pulse emission data with the current corresponding strategy, and sending the marked current data packet to the back-end control system; recording and learning the current data packet through the learning algorithm in the back-end control system to obtain an optimized bird-repelling strategy based on low-frequency pulse emission data.

[0015] In a feasible implementation manner, if the visual perception sensor detects a human activity trajectory and the motion sensor determines that a bird flight trajectory has entered the area range, the low-frequency pulse signal generating device is stopped and controlled.

[0016] In the second aspect, an embodiment of the present application also provides an outdoor large-screen bird prevention device based on a low-frequency pulse signal, the device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, so that the at least one processor can execute an outdoor large-screen bird prevention method based on a low-frequency pulse signal as described in any of the above embodiments.

[0017] On the third aspect, an embodiment of the present application also provides a non-volatile computer storage medium, characterized in that the storage medium is a non-volatile computer-readable storage medium, and the non-volatile computer-readable storage medium stores at least one program, each of which includes instructions. When the instructions are executed by the terminal, the terminal executes an outdoor large-screen bird prevention method based on a low-frequency pulse signal as described in any of the above embodiments.

[0018] This application provides a method, device, and medium for preventing birds from outdoor large screens based on low-frequency pulse signals. Compared with the prior art, the embodiments of this application have the following beneficial technical effects:

[0019] 1. Efficient bird repellent

[0020] By emitting low-frequency pulse signals with specific parameters, it can effectively stimulate the visual and auditory nerves of birds, causing them to feel uncomfortable and fearful, thus staying away from the LED screen. Compared with traditional bird deterrent methods, this method is more effective in repelling birds, can quickly make birds leave the protected area, and maintain a low frequency of bird activity for a long time.

[0021] 2. Does not affect the LED large screen display

[0022] The frequency and parameters of the low-frequency pulse signal have been carefully designed to effectively repel birds without interfering with the LED screen's display performance, including content, color reproduction, and refresh rate. Viewers can view the information on the screen normally, ensuring the core functions of the LED screen are not affected.

[0023] 3. Energy saving and environmental protection

[0024] The use of an intermittent transmission mode and intelligent control system significantly reduces energy consumption. When there is no bird activity, the system automatically reduces the transmission frequency or suspends transmission, saving a significant amount of electricity. Furthermore, this method does not use chemicals, is environmentally friendly, and meets the requirements of sustainable development.

[0025] 4. Low maintenance cost

[0026] Compared to methods such as physical protective nets and chemical bird repellents, this invention offers lower maintenance costs. The low-frequency pulse signal generator and associated sensors offer high stability and a long service life, eliminating the need for frequent replacement. Furthermore, by eliminating the need for complex protective nets or regular application of bird repellents, significant maintenance costs are saved.

[0027] 5. Wide applicability

[0028] This method is applicable to outdoor LED screens of various types and sizes, and can effectively deter birds in places such as commercial centers, squares, stadiums, and transportation hubs. Furthermore, this method is not restricted by geographical location, climatic conditions, or seasonal changes, and has strong environmental adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments described in the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0030] Figure 1 A flow chart of a method for preventing birds from outdoor large screens based on low-frequency pulse signals provided in an embodiment of the present application;

[0031] Figure 2 A schematic structural diagram of an outdoor large-screen bird-prevention device based on a low-frequency pulse signal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this specification, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0033] It should be noted that the present application provides a method for preventing birds from outdoor large screens based on low-frequency pulse signals, which mainly includes the following system components:

[0034] (1) Low-frequency pulse signal generating device

[0035] 1. Hardware composition: A dedicated low-frequency pulse signal generator, which includes a power module, an oscillation circuit, a pulse modulation circuit and a power amplifier circuit. The power module provides a stable power supply for the entire device, and can be powered by AC or solar power to adapt to different installation environments. The oscillation circuit generates a low-frequency oscillation signal of a specific frequency, and the frequency range is set between 10Hz-50Hz. The low-frequency signal in this frequency band can effectively drive away birds without causing obvious interference to human hearing and the normal operation of the LED screen. The pulse modulation circuit modulates the oscillation signal into a pulse signal, and by adjusting the pulse width and duty cycle, the pulse signal has appropriate energy and characteristics. The power amplifier circuit amplifies the modulated pulse signal to meet the needs of driving subsequent transmitting devices.

[0036] Equipped with a signal transmitting antenna, the antenna adopts a model with good directivity and radiation efficiency, such as a Yagi antenna or a directional dipole antenna, to ensure that the pulse signal can be concentrated and transmitted to the key areas around the LED large screen, thereby improving the signal coverage and effect.

[0037] 2. Installation location: Install the low-frequency pulse signal generator on the peripheral bracket of the LED outdoor large screen or on a nearby dedicated pole tower. According to the size and shape of the large screen, rationally arrange multiple signal generators to ensure that the signal can evenly cover the entire large screen area. The direction of the signal transmitting antenna should be adjusted so that the pulse signal can be irradiated obliquely downward on the surface of the large screen and a certain range around it to form an effective protection area.

[0038] (2) Signal transmission and control module

[0039] 1. Transmission Mode: The device uses an intermittent transmission mode, meaning that low-frequency pulse signals are not transmitted continuously but periodically at regular intervals. For example, the transmission cycle can be set to 5 to 20 minutes, with the pulse signal transmitting continuously for 10 to 30 seconds within each transmission cycle. This intermittent transmission mode saves energy and prevents birds from becoming accustomed to the continuous signal, ensuring a sustained bird repellent effect.

[0040] Automatically adjust transmission parameters based on different time periods and environmental conditions. For example, in the early morning and evening when bird activity is high, the frequency and duration of pulse signal transmission can be appropriately increased; in severe weather conditions such as strong winds and heavy rain, the transmission intensity can be appropriately reduced or even suspended to reduce damage to the device itself.

[0041] 2. Intelligent control: Equipped with environmental perception sensors, such as light sensors, temperature sensors, humidity sensors, and motion sensors. The light sensor is used to detect the ambient light intensity. When the light intensity reaches a certain threshold, it indicates that it is nighttime or a period of low light. At this time, the frequency or intensity of the pulse signal can be appropriately adjusted, because birds' activity habits and reactions to stimuli at night may be different from those during the day. The temperature sensor and humidity sensor can monitor the ambient temperature and humidity. When the temperature and humidity exceed the normal range, it may be a precursor to bad weather. The system can make corresponding transmission parameter adjustments in advance. The motion sensor is used to detect whether there is bird activity around the large screen. When a bird is detected entering the protection area, the pulse signal transmission is immediately triggered, and the signal transmission strategy is dynamically adjusted according to the bird's stay time and proximity, such as increasing the transmission frequency or extending the duration, until the bird leaves.

[0042] (3) Pulse signal parameter optimization

[0043] 1. Frequency Selection: After extensive experimental research, we determined that the optimal frequency range for low-frequency pulse signals is between 10Hz and 50Hz. Within this frequency range, birds can clearly sense the presence of pulse signals, causing discomfort and thus avoiding LED screens. Furthermore, signals in this frequency range have minimal impact on human hearing and will not cause noise disturbance to nearby people. For example, a frequency between 20Hz and 30Hz is commonly selected as a transmission frequency. Low-frequency signals in this frequency range attenuate relatively slowly when propagating through the air, effectively covering a wide area.

[0044] 2. Pulse Width and Duty Cycle: Set the pulse width to 0.5ms-5ms, and the duty cycle to 10%-50%. An appropriate pulse width ensures the signal has enough energy to attract birds, but not too wide, resulting in an overly dense signal and affecting the bird-repelling effect. A properly set duty cycle can further conserve energy while maintaining bird-repelling effectiveness. For example, a pulse width of 2ms and a duty cycle of 30% ensures a high peak energy pulse signal while maintaining a sufficient pause, allowing birds ample time to react and depart.

[0045] The embodiment of the present application provides a method for preventing birds from outdoor large screens based on low-frequency pulse signals, such as Figure 1 As shown, the outdoor large screen bird prevention method based on low-frequency pulse signals specifically includes steps S101-S105:

[0046] S101. Based on the self-test data of the low-frequency pulse signal generating device, the environmental perception data of the outdoor large screen and its own initial parameters are cascade controlled to determine the initial low-frequency pulse data.

[0047] Specifically, firstly, a hardware self-test control is performed on the low-frequency pulse signal generating device to obtain self-test data, wherein the self-test data at least includes: power supply stability, oscillation circuit and power method module.

[0048] Furthermore, when all self-test data show a passing result, the preset environmental sensing sensor collects real-time data of environmental factors around the outdoor large screen to obtain environmental sensing data. The environmental sensing data includes at least: light, temperature, humidity, motion sensing characteristics, and seasonal characteristics.

[0049] Furthermore, the environmental perception data is subjected to feature weighted calculation under multiple factors to obtain the current environmental perception score at each factor level.

[0050] Furthermore, based on the current environmental perception score, the initial parameters of the control module in the outdoor large screen are cascade-controlled under multiple factors to obtain initial low-frequency pulse data. The initial low-frequency pulse data includes: initial frequency, pulse width, duty cycle, and transmission period.

[0051] In one embodiment, when the low-frequency pulse signal generating device is powered on, a hardware self-test (such as power supply stability, oscillation circuit, power amplifier module, etc.) is first performed to ensure the normal operation of the device. Then, environmental parameter collection is performed: the surrounding environment data is collected in real time through environmental perception sensors (light, temperature, humidity, motion sensors) and uploaded to the control module. Then, the initial parameters of the control module in the outdoor large screen are set: the control module sets the initial frequency, pulse width, duty cycle and emission period of the low-frequency pulse signal according to the preset algorithm (such as time, light intensity, temperature and humidity thresholds) and the collected environmental data.

[0052] S102 : Generate initial low-frequency pulse transmission data based on the initial low-frequency pulse data.

[0053] Specifically, the initial low-frequency pulse data is analyzed by an oscillation circuit to determine a basic low-frequency signal, and the basic low-frequency signal is converted and processed by a pulse modulation circuit to obtain pulse information.

[0054] Furthermore, the pulse signal is amplified by a power amplifier and output to a signal transmitting antenna to obtain initial low-frequency pulse signal generation data.

[0055] Furthermore, based on the surface of the outdoor large screen in a specific direction and the corresponding surrounding area, and by generating data through the initial low-frequency pulse signal, the antenna is controlled to perform directional transmission of the pulse signal, covering and obtaining the directional transmission range data.

[0056] Furthermore, according to the initial low-frequency pulse signal generation data and the directional transmission range data, the antenna is controlled to perform periodic signal transmission to obtain initial low-frequency pulse transmission data under intermittent transmission.

[0057] In one embodiment, a low-frequency pulse signal generation process is first performed, that is, a basic low-frequency signal (such as 20Hz) is generated by an oscillation circuit. The low-frequency signal is then converted into a pulse signal (for example, a pulse width of 2ms and a duty cycle of 30%) through a pulse modulation circuit. The signal strength is then enhanced by a power amplifier circuit and output to a signal transmitting antenna. Directional transmission control is then performed, that is, the signal in the initial low-frequency pulse signal generation data is transmitted through the antenna in a specific direction to illuminate the surface of the LED large screen and the surrounding area, covering the range where birds may inhabit (such as the large screen frame, corners, above the bracket, etc.), covering and obtaining directional transmission range data. Finally, the intermittent transmission process is completed, and it is necessary to transmit a pulse signal (initial low-frequency pulse transmission data) for 15 seconds each time according to the set period (such as once every 10 minutes) and the directional transmission range data, and then enter a silent state.

[0058] S103 , performing dynamic feedback control on the initial low-frequency pulse transmission data through a dynamic response strategy under the influence of the trigger, to obtain real-time low-frequency pulse transmission data.

[0059] Specifically, the environmental perception sensor performs real-time perception processing of the current environment to determine environmental change response data. The environmental change response data is then compared with the environmental perception data in a step-by-step manner under multiple factors to obtain environmental feedback change data.

[0060] Furthermore, based on the environmental feedback change data, an environmental dynamic response strategy is determined in response to the environmental change, wherein the environmental dynamic response strategy is used to optimize and adjust the initial low-frequency pulse transmission data in response to the real-time environmental change.

[0061] Furthermore, the motion sensor performs regional triggering on the bird's flight trajectory to determine trajectory response data. A threshold is then applied to the bird's dwell time to determine dwell response data. The dwell time is the time the bird remains on the outdoor screen.

[0062] Furthermore, a dynamic response strategy for bird activity is generated based on the trajectory response data and the dwell response data. The dynamic response strategy for bird activity is used to optimize the initial low-frequency pulse emission data under real-time bird activity. The dynamic response strategy includes an environmental dynamic response strategy and the dynamic response strategy for bird activity.

[0063] Furthermore, if the dynamic response strategy is an environmental dynamic response strategy, the environmental change characteristics in the environmental dynamic response strategy are extracted, and based on the environmental change characteristics, multiple parameters in the initial low-frequency pulse transmission data are adaptively adjusted to obtain low-frequency pulse transmission data under environmental factors.

[0064] In one embodiment, in a dynamic environmental response strategy, when light intensity changes, i.e., when the light sensor detects a decrease in light intensity (e.g., at dusk), the control module automatically increases the pulse frequency (e.g., from 20Hz to 25Hz) to enhance the bird-repelling effect. When the temperature or humidity sensor detects extreme weather (e.g., heavy rain or strong winds), signal transmission is suspended or intensity is reduced to minimize equipment loss. This allows for the determination of low-frequency pulse transmission data under different environmental factors / characteristics.

[0065] If the dynamic response strategy is a bird activity dynamic response strategy, the first bird activity feature in the bird activity dynamic response strategy is extracted, and based on the first bird activity feature, multiple parameters in the initial low-frequency pulse emission data are adaptively adjusted to obtain the first low-frequency pulse emission data under the bird activity factor.

[0066] In one embodiment, a motion sensor is first used for detection. When the motion sensor detects a bird entering the protected area (e.g., its flight path approaches a large screen), a short high-frequency pulse (e.g., 30 Hz for 5 seconds) is immediately triggered to repel it. A dwell time determination is also required: if the bird persists, the pulse intensity is gradually increased or the emission interval is shortened until it flies away.

[0067] Furthermore, after executing the first low-frequency pulse transmission data, if a secondary bird activity dynamic response strategy is detected and generated by the motion sensor, the second bird activity feature in the secondary bird activity dynamic response strategy is extracted, and multiple parameters in the first low-frequency pulse transmission data are adaptively adjusted to obtain the second low-frequency pulse transmission data under bird activity; the iterative cycle is continued until the bird activity dynamic response strategy is no longer generated.

[0068] In one embodiment, after executing the first low-frequency pulse transmission data, if it is detected that the birds continue to fly nearby or continue to stay above the large screen, the second bird activity feature in the secondary bird activity dynamic response strategy is extracted, that is, the detection process is resumed, and the pulse intensity is adaptively increased in stages or the transmission interval is shortened based on the first low-frequency pulse transmission data, so as to obtain the adjusted second low-frequency pulse transmission data, and the cycle iteration is continued until the birds no longer stay and no birds enter the protection area.

[0069] Furthermore, the low-frequency pulse transmission data under environmental factors and the low-frequency pulse transmission data under bird activity factors are correlated to obtain real-time low-frequency pulse transmission data.

[0070] S104 : Based on a static response strategy without triggering influence, the initial low-frequency pulse transmission data is maintained and controlled to obtain steady-state low-frequency pulse transmission data.

[0071] Specifically, if neither the environment dynamic response strategy nor the bird activity dynamic response strategy exists, the current low-frequency pulse control strategy is determined to be the static response strategy without triggering influence.

[0072] Furthermore, based on the static response strategy, the initial low-frequency pulse transmission data is recorded and stored to the original low-frequency pulse control strategy.

[0073] Furthermore, after the dynamic response strategy is executed and in the static response strategy, the current low-frequency pulse transmission data is recorded and stored to update the low-frequency pulse control strategy.

[0074] Furthermore, the original low-frequency pulse control strategy and the updated low-frequency pulse control strategy are respectively subjected to strategy maintenance control and are determined as steady-state low-frequency pulse transmission data.

[0075] As a feasible implementation method, if neither an environmental dynamic response strategy nor a bird activity dynamic response strategy exists, the current low-frequency pulse control strategy is maintained continuously. After the dynamic response strategy is executed, that is, after the bird repelling state is completed, the current updated low-frequency pulse control strategy is maintained continuously. After a certain period of time, the pulse intensity or transmission interval is reduced again, and the control logic of the initial low-frequency pulse control strategy is maintained. The original low-frequency pulse control strategy and the updated low-frequency pulse control strategy are both determined as low-frequency pulse transmission signals under stable control, that is, steady-state low-frequency pulse transmission data.

[0076] S105 , storing the real-time low-frequency pulse transmission data and the steady-state low-frequency pulse transmission data and optimizing the bird-repelling strategy.

[0077] Specifically, the real-time and steady-state low-frequency pulse transmission data are labeled and packaged with the current corresponding strategy, and the labeled current data packets are sent to the back-end control system. The back-end control system then uses a learning algorithm to record and learn from the current data packets to obtain an optimized bird repelling strategy based on the low-frequency pulse transmission data.

[0078] As a feasible implementation method, if the visual perception sensor detects the trajectory of human activities and the motion sensor determines that the flight trajectory of birds has entered the area range, the low-frequency pulse signal generating device is stopped and controlled.

[0079] In one embodiment, when an abnormal situation occurs, such as a device failure (e.g., antenna damage or power outage), an alarm is triggered and the system switches to a backup power source or shuts down to avoid safety hazards. When a false trigger occurs, such as when a human activity is misinterpreted by the sensor as the approach of birds, the system automatically reduces signal strength or pauses transmission to minimize the impact on people. Manual intervention is also possible, meaning that managers can manually adjust signal parameters or force the start / stop of transmission through a remote control platform (e.g., a mobile phone app or computer software).

[0080] In one embodiment, the bird repellent strategy can also implement operational data storage and processing, recording the time and parameters (frequency, pulse width, duty cycle) of each signal transmission, environmental data (light, temperature and humidity), and bird activity logs (number of detections, repellent effect). This data can be used for subsequent analysis to optimize the bird repellent strategy (such as adjusting parameters to reflect seasonal changes in bird habits). Regular maintenance is also performed, and antenna orientation, sensor sensitivity, and power supply stability are regularly checked based on device operating time or data feedback to ensure the long-term effectiveness of the system.

[0081] In addition, the embodiment of the present application also provides an outdoor large-screen bird-proofing device based on a low-frequency pulse signal, such as Figure 2 As shown, the outdoor large-screen bird-prevention device 200 based on the low-frequency pulse signal specifically includes:

[0082] At least one processor 201. And a memory 202 in communication with the at least one processor 201. The memory 202 stores instructions that can be executed by the at least one processor 201, so that the at least one processor 201 can execute:

[0083] According to the self-test data of the low-frequency pulse signal generating device, the environmental perception data of the outdoor large screen and its own initial parameters are cascade controlled to determine the initial low-frequency pulse data;

[0084] generating initial low-frequency pulse emission data based on the initial low-frequency pulse data;

[0085] Through the dynamic response strategy under the influence of triggering, dynamic feedback control is performed on the initial low-frequency pulse emission data to obtain real-time low-frequency pulse emission data;

[0086] Based on the static response strategy without triggering influence, the initial low-frequency pulse emission data is maintained and controlled to obtain steady-state low-frequency pulse emission data;

[0087] The real-time low-frequency pulse emission data and steady-state low-frequency pulse emission data are stored and used to optimize the bird-repelling strategy.

[0088] The embodiment of the present application utilizes the characteristics of low-frequency pulse signals and accurately controls parameters such as the frequency, pulse width, and duty cycle of the signal, so that the signal can not only effectively drive away birds, but also avoid adverse effects on the display function of the LED large screen and the surrounding environment. Low-frequency signals have good diffraction capabilities when propagating in the air and can penetrate some obstacles, ensuring that the signal can cover every corner around the large screen, including some hidden habitats. At the same time, it is equipped with a complete environmental perception sensor and an intelligent control module, which can automatically adjust the transmission parameters of the pulse signal according to different environmental conditions and bird activities. This intelligent control method greatly improves the flexibility and effectiveness of the bird prevention method, enabling it to adapt to various complex outdoor environmental changes and always maintain a good bird prevention effect.

[0089] The various embodiments in this application are described in a progressive manner. Similar portions between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the device and medium embodiments are generally similar to the method embodiments, so their descriptions are relatively simple. For relevant portions, refer to the descriptions of the method embodiments.

[0090] The devices and media provided in the embodiments of the present application correspond one-to-one to the methods. Therefore, the devices and media also have similar beneficial technical effects to their corresponding methods. Since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the devices and media will not be repeated here.

[0091] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0092] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1A device that provides the functions specified in a block or multiple blocks.

[0093] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0094] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0095] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0096] Memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

[0097] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0098] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0099] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. A bird-proofing method for outdoor large screens based on low-frequency pulse signals, characterized in that: The method comprises: According to the self-test data of the low-frequency pulse signal generating device, the environmental perception data of the outdoor large screen and its own initial parameters are cascade controlled to determine the initial low-frequency pulse data; generating initial low-frequency pulse transmission data based on the initial low-frequency pulse data; Performing dynamic feedback control on the initial low-frequency pulse transmission data through a dynamic response strategy under the influence of triggering to obtain real-time low-frequency pulse transmission data; Based on a static response strategy without triggering influence, the initial low-frequency pulse transmission data is maintained and controlled to obtain steady-state low-frequency pulse transmission data; The real-time low-frequency pulse transmission data and the steady-state low-frequency pulse transmission data are stored and used to optimize the bird-repelling strategy.

2. The outdoor large screen bird prevention method based on low-frequency pulse signal according to claim 1 is characterized in that: According to the self-test data of the low-frequency pulse signal generating device, the environmental perception data of the outdoor large screen and its own initial parameters are cascade controlled to determine the initial low-frequency pulse data, including: Performing hardware self-test control on the low-frequency pulse signal generating device to obtain the self-test data; wherein the self-test data at least includes: power supply stability, oscillation circuit and power method module; When the self-test data are all self-test passing results, the preset environmental perception sensor is used to collect real-time data of environmental factors around the outdoor large screen to obtain the environmental perception data; wherein the environmental perception data at least includes: light, temperature, humidity, motion sensing characteristics and seasonal characteristics; Performing feature weighted calculation on the environmental perception data under multiple factors to obtain the current environmental perception score at each factor level; Based on the current environmental perception score, the initial parameters of the control module in the outdoor large screen are cascade controlled under multiple factors to obtain the initial low-frequency pulse data; wherein, the initial low-frequency pulse data includes: initial frequency, pulse width, duty cycle and transmission period.

3. The outdoor large screen bird prevention method based on low-frequency pulse signal according to claim 1 is characterized in that: Generating initial low-frequency pulse transmission data based on the initial low-frequency pulse data specifically includes: The initial low-frequency pulse data is subjected to signal analysis by an oscillation circuit to determine a basic low-frequency signal; and the basic low-frequency signal is converted and processed by a pulse modulation circuit to obtain pulse information; The pulse signal is amplified by a power amplifier and output to a signal transmitting antenna to obtain initial low-frequency pulse signal generation data; Based on the surface of the outdoor large screen in a specific direction and the corresponding surrounding area, and by generating data through the initial low-frequency pulse signal, the antenna is controlled to perform directional transmission of the pulse signal, covering and obtaining directional transmission range data; According to the initial low-frequency pulse signal generation data and the directional transmission range data, the antenna is controlled to perform periodic signal transmission to obtain initial low-frequency pulse transmission data under intermittent transmission.

4. The outdoor large screen bird prevention method based on low-frequency pulse signal according to claim 1 is characterized in that: Before performing dynamic feedback control on the initial low-frequency pulse transmission data by a dynamic response strategy under the influence of triggering to obtain real-time low-frequency pulse transmission data, the method further includes: Through the environmental perception sensor, the current environment is perceived and processed in real time to determine the environmental change response data; the environmental change response data is compared with the environmental perception data step by step under multiple factors to obtain environmental feedback change data; Determining an environmental dynamic response strategy in response to environmental changes based on the environmental feedback change data; wherein the environmental dynamic response strategy is used to optimize and adjust the initial low-frequency pulse emission data in response to real-time environmental changes; The motion sensor is used to trigger the bird's flight trajectory in an area to determine the trajectory response data; and the bird's stay time is determined by a threshold value to determine the stay response data; wherein, the bird's stay time is the time it stays on the outdoor large screen; generating a bird activity dynamic response strategy based on the trajectory response data and the stay response data; wherein the bird activity dynamic response strategy is used to optimize the initial low-frequency pulse emission data under real-time bird activity; The dynamic response strategy includes: the environment dynamic response strategy and the bird activity dynamic response strategy.

5. The outdoor large screen bird prevention method based on low-frequency pulse signal according to claim 4 is characterized in that: The initial low-frequency pulse transmission data is dynamically feedback-controlled by a dynamic response strategy under the influence of the trigger to obtain real-time low-frequency pulse transmission data, specifically including: If the dynamic response strategy is the environmental dynamic response strategy, extracting environmental change characteristics in the environmental dynamic response strategy, and adaptively adjusting multiple parameters in the initial low-frequency pulse transmission data based on the environmental change characteristics to obtain low-frequency pulse transmission data under environmental factors; If the dynamic response strategy is the bird activity dynamic response strategy, extracting a first bird activity feature in the bird activity dynamic response strategy, and adaptively adjusting multiple parameters in the initial low-frequency pulse transmission data based on the first bird activity feature to obtain first low-frequency pulse transmission data under the bird activity factor; After executing the first low-frequency pulse transmission data, if the motion sensor detects and generates a secondary bird activity dynamic response strategy, extracting a second bird activity feature in the secondary bird activity dynamic response strategy, adaptively adjusting multiple parameters in the first low-frequency pulse transmission data, and obtaining second low-frequency pulse transmission data under bird activity; iterating the loop until no bird activity dynamic response strategy is generated; The low-frequency pulse transmission data under environmental factors and the low-frequency pulse transmission data under bird activity factors are correlated to obtain the real-time low-frequency pulse transmission data.

6. The outdoor large screen bird prevention method based on low-frequency pulse signal according to claim 1 is characterized in that: Based on a static response strategy without triggering influence, the initial low-frequency pulse transmission data is maintained and controlled to steady-state low-frequency pulse transmission data, specifically including: If neither the environmental dynamic response strategy nor the bird activity dynamic response strategy exists, the current low-frequency pulse control strategy is determined to be the static response strategy without triggering influence; Based on the static response strategy, the initial low-frequency pulse transmission data is recorded and stored to the original low-frequency pulse control strategy; After the dynamic response strategy is executed and in the static response strategy, the current low-frequency pulse transmission data is recorded and stored to update the low-frequency pulse control strategy; Strategy maintenance control is performed on the original low-frequency pulse control strategy and the updated low-frequency pulse control strategy respectively, and the steady-state low-frequency pulse transmission data are determined.

7. The outdoor large screen bird prevention method based on low-frequency pulse signal according to claim 1 is characterized in that: Storing the real-time low-frequency pulse transmission data and the steady-state low-frequency pulse transmission data and optimizing the bird-repelling strategy specifically includes: Marking and packaging the real-time low-frequency pulse transmission data and the steady-state low-frequency pulse transmission data according to the current corresponding strategy, and sending the marked current data packets to the back-end control system; The current data packet is recorded and learned through the learning algorithm in the back-end control system to obtain an optimized bird-repelling strategy based on low-frequency pulse emission data.

8. The outdoor large screen bird prevention method based on low-frequency pulse signal according to claim 1 is characterized in that: If the visual perception sensor detects the trajectory of human activities and the motion sensor determines that the flight trajectory of birds has entered the area range, the low-frequency pulse signal generating device is stopped and controlled.

9. An outdoor large-screen bird-proofing device based on low-frequency pulse signals, characterized in that: The device comprises: at least one processor; and, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, so that the at least one processor can execute the outdoor large-screen bird prevention method based on low-frequency pulse signals according to any one of claims 1-8.

10. A non-volatile computer storage medium, characterized in that The storage medium is a non-volatile computer-readable storage medium, which stores at least one program. Each of the programs includes instructions. When the instructions are executed by the terminal, the terminal executes the outdoor large-screen bird prevention method based on low-frequency pulse signals according to any one of claims 1 to 8.

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