Intelligent water curtain decoration control method and system
Patent Information
- Application Number
- CN202611069029.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-17
- Publication Date
- 2026-08-28
AI Technical Summary
[0004]针对上述方案,本申请的发明人发现上述技术至少存在如下技术问题:1、现有水幕装饰技术在控制精度与显示质量方面存在明显不足
[0016]The beneficial effects of this invention are as follows: 1. In this embodiment, a programmable high-voltage electrostatic field generated by an electrode array is used to apply precise dielectric electrophoretic force to the water column. By independently adjusting the voltage amplitude and phase of each electrode, the deflection angle and curvature of the water column can be continuously controlled in any direction within 360 degrees on the horizontal plane, breaking through the limitation of traditional water curtains that can only fall vertically. Simultaneously, by modulating the electric field frequency to actively control the Rayleigh instability of the water column, the water column is precisely broken into droplets at a predetermined position, achieving micron-level control over the size and trajectory of the droplets, significantly improving the pixel density and image clarity of the water curtain display. The independent adjustment capability of voltage and frequency allows the system to dynamically adjust the water flow pattern according to needs, fundamentally solving the problems of roughness, image distortion, and limited resolution in traditional water curtain displays.
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Figure CN122653005A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of water curtain decoration control technology, specifically to an intelligent water curtain decoration control method and system. Background Technology
[0002] With the rapid development of digital media technology and artificial intelligence, water curtain decoration has gradually evolved from a traditional static landscape installation into a dynamic form of digital art expression. Modern water curtain decoration systems typically consist of a nozzle array, a water supply and circulation system, a programmable logic controller, and a lighting module. By controlling the opening and closing sequence of the valves of each nozzle, water flows in the air to form water column combinations with specific shapes, thereby presenting visual effects such as text, patterns, and even dynamic images.
[0003] Existing technology, such as the invention application patent with publication number CN108508769A, discloses a water curtain control method and device. The method includes: acquiring user interaction information; calculating and generating a control signal conforming to the water curtain system based on the interaction information; and controlling the water curtain system to generate a water curtain based on the control signal. In this embodiment of the invention, by acquiring user interaction information, generating a control signal corresponding to the water curtain system based on the interaction information, and then controlling the water curtain system to generate a corresponding water curtain based on the control signal, the water curtain system can generate water curtains with different effects according to user operations, thereby improving the interactivity between the water curtain system and the user.
[0004] Regarding the above-mentioned solutions, the inventors of this application have discovered at least the following technical problems: 1. Existing water curtain decoration technologies have significant shortcomings in terms of control precision and display quality. Most systems rely on the simple on / off control of water flow using solenoid valves, which can only achieve two states: open and closed water jets, making it difficult to continuously and precisely adjust the shape of the water flow. Due to the lack of effective control over the water output speed from the nozzles, the water curtain image is prone to distortion when water pressure fluctuates, resulting in poor imaging stability. In addition, insufficient water droplet density leads to unclear displayed images, coarse detail, and limited overall system resolution, making it difficult to present complex and detailed dynamic patterns. Water curtain projection also often faces problems such as image distortion and uneven brightness, further affecting the overall quality of the visual effect.
[0005] Existing systems have significant shortcomings in terms of environmental adaptability and operational stability. Water curtains are highly susceptible to wind interference; their shape is easily distorted in strong winds, significantly reducing the projection effect. Most traditional systems lack intelligent environmental sensing and adaptive adjustment capabilities, failing to automatically adjust their operating status according to changes in site conditions such as wind speed, temperature, and humidity, relying solely on manual parameter settings. When operating in complex outdoor environments, the equipment also faces numerous problems such as nozzle clogging, circuit dampness, and program malfunctions, making maintenance cumbersome and prone to operational interruptions. Poor compatibility of the control system and inconvenient equipment expansion and upgrades further limit the long-term reliable operation of the system.
[0006] Existing technologies also have limitations in terms of intelligence, interactive experience, and content generation. Most water curtain systems can only display preset simple patterns or text, and content generation relies on manual programming and design, lacking the ability to automatically generate dynamic effects based on user needs. Control methods are relatively simple, still mainly relying on traditional timing control or computer program control, lacking deep collaboration with multi-sensory elements such as music and lighting. In terms of interactive experience, the systems are mostly one-way displays, making it difficult to perceive the presence and behavior of the audience and respond proactively. The high system cost also limits its widespread application in small and medium-sized venues, and the issue of water resource recycling remains unresolved. Summary of the Invention
[0007] To address the aforementioned technical shortcomings, the present invention aims to provide an intelligent water curtain decoration control method and system.
[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides an intelligent water curtain decoration control method in the first aspect, including the following steps: Step 1, judgment of suitable water curtain display: by collecting environmental data through a sensor array arranged around the target water curtain device, the environmental data includes wind speed, wind direction, temperature, humidity, ambient light intensity, and audience position and density information, and then judging whether the current environment is in the reference range suitable for water curtain display. If it exceeds the reference range, the corresponding environmental disturbance type and disturbance intensity level are analyzed.
[0009] Step 2, Environmental Compensation Correction: In response to the control commands input by the target user, a dynamic water curtain effect sequence is generated through the generative engine. The dynamic water curtain effect sequence is then decomposed into shape control parameters, density control parameters, and timing control parameters. Based on environmental data and the type and intensity level of environmental disturbances, environmental compensation corrections are performed on the shape control parameters, density control parameters, and timing control parameters to obtain the corrected control parameters.
[0010] Step 3: Manipulation of the liquid jet: After obtaining the corrected control parameters, they are converted into voltage signals of the electrode array at each nozzle. By applying a programmable high-voltage electrostatic field to different electrodes, the electric field force is used to actively manipulate the jet liquid at the nozzle outlet, thereby controlling the deflection angle, curvature, splitting mode, droplet size, and falling trajectory of the water column.
[0011] Step 4: Dynamic voltage adjustment: The actual shape image of the target water curtain is acquired in real time by a high-speed camera device. The actual shape image is compared with the shape of the target water curtain to calculate the deviation value. The voltage signal is dynamically adjusted according to the deviation value through an adaptive control algorithm. At the same time, when the environmental disturbance type is wind speed disturbance and the disturbance intensity level exceeds the set level threshold, the feedforward compensation mode is activated.
[0012] The present invention provides an intelligent water curtain decoration control system in a second aspect, comprising the following modules: a suitable water curtain display judgment module: used to collect environmental data by a sensor array arranged around the target water curtain device, the environmental data including wind speed, wind direction, temperature, humidity, ambient light intensity, and audience position and density information, and then to determine whether the current environment is in the reference range suitable for water curtain display; if it exceeds the reference range, the corresponding environmental disturbance type and disturbance intensity level are analyzed.
[0013] Environmental compensation and correction module: In response to the control commands input by the target user, it generates a dynamic water curtain effect sequence through a generative engine, decomposes the dynamic water curtain effect sequence into shape control parameters, density control parameters, and timing control parameters, and then performs environmental compensation and correction on the shape control parameters, density control parameters, and timing control parameters according to environmental data and the type and intensity level of environmental disturbances to obtain the corrected control parameters.
[0014] Liquid jet manipulation module: After obtaining the corrected control parameters, it converts them into voltage signals for the electrode array at each nozzle. By applying a programmable high-voltage electrostatic field to different electrodes, it actively manipulates the jet liquid at the nozzle outlet using the electric field force, thereby controlling the deflection angle, curvature, splitting mode, droplet size, and falling trajectory of the water column.
[0015] Voltage dynamic adjustment module: It is used to acquire the actual shape image of the target water curtain in real time through a high-speed camera device, compare the actual shape image with the shape of the target water curtain to calculate the deviation value, and dynamically adjust the voltage signal according to the deviation value through an adaptive control algorithm. At the same time, when the environmental disturbance type is wind speed disturbance and the disturbance intensity level exceeds the set level threshold, the feedforward compensation mode is activated.
[0016] The beneficial effects of this invention are as follows: 1. In this embodiment, a programmable high-voltage electrostatic field generated by an electrode array is used to apply precise dielectric electrophoretic force to the water column. By independently adjusting the voltage amplitude and phase of each electrode, the deflection angle and curvature of the water column can be continuously controlled in any direction within 360 degrees on the horizontal plane, breaking through the limitation of traditional water curtains that can only fall vertically. Simultaneously, by modulating the electric field frequency to actively control the Rayleigh instability of the water column, the water column is precisely broken into droplets at a predetermined position, achieving micron-level control over the size and trajectory of the droplets, significantly improving the pixel density and image clarity of the water curtain display. The independent adjustment capability of voltage and frequency allows the system to dynamically adjust the water flow pattern according to needs, fundamentally solving the problems of roughness, image distortion, and limited resolution in traditional water curtain displays.
[0017] 2. In this embodiment, a multi-modal sensor array collects environmental data such as wind speed, wind direction, temperature, humidity, and light intensity in real time. Wind compensation, temperature compensation, and light intensity compensation models are used to calculate corrections for environmental disturbances, which are then superimposed on the corresponding dimensions of the control parameters. This achieves active compensation of the water curtain morphology for environmental disturbances. When wind speed disturbances exceed a set threshold, the system automatically pauses closed-loop feedback control and switches to feedforward compensation mode, directly calling the compensation amount and superimposing it on the voltage signal in an open-loop manner. This effectively avoids oscillations and overshoots that may occur in closed-loop control under strong wind conditions. After the environmental disturbances subside, the system automatically switches back to closed-loop control, ensuring that the water curtain maintains a stable display effect in various complex outdoor environments, significantly enhancing the system's anti-interference capability and long-term operational reliability.
[0018] 3. In this embodiment, the text-to-dynamic effect mapping model based on the Transformer architecture allows users to automatically generate dynamic water curtain effects with complete time sequences simply by describing them in natural language. This eliminates the need for manual programming or preset templates, significantly lowering the technical barrier to water curtain content creation. The system automatically decomposes the generated effect sequence into shape control parameters, density control parameters, and timing control parameters, and integrates and compensates them with environmental perception data, achieving intelligent control throughout the entire process from creative input to effect output. Simultaneously, the coordinated control of ultrasonic directional speakers, micro-mist generators, and odor release devices upgrades the water curtain display from a single visual experience to an immersive experience integrating sight, sound, touch, and smell. Through an intelligent switching strategy of feedforward compensation and closed-loop feedback, the system ensures control accuracy while also considering response speed and stability, providing a complete technical solution for the evolution of water curtain decoration from static display to dynamic interactive art. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the implementation steps of the method of the present invention.
[0021] Figure 2 This is a schematic diagram of the system structure connection of the present invention. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] Examples of embodiments of the present invention Figure 1 As shown, the intelligent water curtain decoration control method includes the following steps: Step 1, judgment of suitable water curtain display: environmental data is collected by a sensor array arranged around the target water curtain device. The environmental data includes wind speed, wind direction, temperature, humidity, ambient light intensity, and audience position and density information. Then, it is determined whether the current environment is in the reference range suitable for water curtain display. If it exceeds the reference range, the corresponding environmental disturbance type and disturbance intensity level are analyzed.
[0024] In a specific embodiment, the environmental data is collected by a sensor array arranged around the target water curtain device. The specific collection process is as follows: wind speed, wind direction, temperature, humidity, ambient light intensity, and audience position and density are collected by wind speed sensors, temperature and humidity sensors, light sensors, and infrared or visual sensors arranged around the target water curtain device. The raw data collected by various sensors are aligned with a unified timestamp and integrated into an environmental state vector. The environmental state vector is a 7-dimensional vector containing wind speed value, wind direction value, temperature value, humidity value, light intensity value, audience density value, and average audience distance value.
[0025] In a specific embodiment, if the data exceeds the baseline range, the corresponding environmental disturbance type and disturbance intensity level are analyzed. The specific analysis process is as follows: the data of each dimension in the environmental state vector are compared with the preset environmental threshold one by one.
[0026] If the wind speed exceeds 2.5 m / s, it is analyzed as a wind speed disturbance and the amount of wind speed exceeding the limit is recorded as the disturbance intensity level.
[0027] If the temperature value is below 5℃ or above 35℃, it is analyzed as a temperature disturbance and the temperature offset is recorded as the disturbance intensity level.
[0028] If the humidity value is below 30%RH or above 80%RH, it is analyzed as a humidity disturbance and the humidity offset is recorded as the disturbance intensity level.
[0029] If the light intensity value is higher than 500 lux, it is analyzed as a light disturbance and the amount of light exceeding the limit is recorded as the disturbance intensity level.
[0030] Step 2, Environmental Compensation Correction: In response to the control commands input by the target user, a dynamic water curtain effect sequence is generated through the generative engine. The dynamic water curtain effect sequence is then decomposed into shape control parameters, density control parameters, and timing control parameters. Based on environmental data and the type and intensity level of environmental disturbances, environmental compensation corrections are performed on the shape control parameters, density control parameters, and timing control parameters to obtain the corrected control parameters.
[0031] In a specific embodiment, the water curtain dynamic effect sequence is decomposed into morphological control parameters, density control parameters, and temporal control parameters. The specific decomposition process is as follows: the target user describes the desired water curtain effect in natural language. After receiving the description, the generative engine generates a water curtain dynamic effect sequence containing a time series through a pre-trained text-to-dynamic effect mapping model.
[0032] It should be noted that the target user describes the desired water curtain effect in natural language. This descriptive text is collected by the front-end interactive interface and transmitted to the generative engine. The generative engine first preprocesses the descriptive text, including word segmentation based on a general word segmentation tool and mapping each word into a high-dimensional vector representation based on a pre-trained word vector model. Then, the vectorized sequence is input into the pre-trained text to the dynamic effect mapping model. This model adopts the Transformer architecture and uses its self-attention mechanism to capture the long-distance dependencies between different words in the descriptive text. In the encoder part, the input text is compressed into a context vector containing semantic features, and in the decoder part, the corresponding time series data is generated frame by frame in an autoregressive manner. During the training phase, the model is controlled by a large number of paired text descriptions and manual annotations. Supervised learning is performed on the parameter sequence data, and the cross-entropy loss function and adaptive moment estimation optimizer are used for parameter updates, enabling the model to learn the mapping rules between natural language semantics and water curtain dynamic effects. During generation and execution, the hidden state output by the decoder at each step is mapped to the control parameter vector of the current moment through linear transformation and Softmax activation function. The output of all moments constitutes a complete water curtain dynamic effect sequence containing time series. This sequence uses a fixed time interval as the sampling step size, with each time node corresponding to a frame of control parameter snapshot, completely covering the entire process from the start to the end of the effect. This automatically transforms the user's abstract creative description into time-series control data that can be decomposed and executed later, avoiding the tedious process of manual frame-by-frame programming and significantly improving the efficiency and flexibility of water curtain effect content generation.
[0033] The mapping model is built on the Transformer architecture. The training samples are derived from a paired dataset of historical water curtain effect description texts and corresponding control parameter sequences. The number of training samples is ≥10,000, covering a variety of effect types.
[0034] During execution, the natural language description text is segmented and vectorized and then input into the model. The model outputs a sequence of dynamic water curtain effects. The sequence is then decomposed into morphological control parameters, density control parameters, and temporal control parameters corresponding to each time point along the time axis.
[0035] Among them, the shape control parameters include the target deflection angle and target curvature of the water column of each nozzle, the density control parameters include the target water flow rate and target water droplet density per unit time of each nozzle, and the timing control parameters include the target action timing and target action duration of each nozzle.
[0036] In a specific embodiment, the environmental compensation correction of the morphological control parameters, density control parameters, and timing control parameters is performed as follows: the wind drift compensation amount of the water column deflection angle and the horizontal offset compensation amount of the falling trajectory are calculated based on the wind speed value, wind direction value, and wind speed disturbance intensity level.
[0037] Compensation deflection angle The formula is: , ,in, For ambient wind speed, This refers to the time it takes for the water column to fall. The vertical height of the nozzle from the water curtain's landing surface. This is the acceleration due to gravity.
[0038] Compensation deflection direction angle The formula is: ,in, For the ambient wind direction angle, This is the initial spray direction angle of the nozzle.
[0039] The compensation amount of electric field parameters corresponding to the changes in surface tension and dielectric constant of water is calculated based on temperature and humidity values, as well as the intensity levels of temperature and humidity disturbances.
[0040] Electric field amplitude compensation The formula is: ,in, The current applied electric field amplitude is the reference value. This is the current ambient temperature value. For the preset reference temperature, This represents the current ambient humidity value. The preset baseline humidity, This is the coefficient representing the effect of temperature on surface tension. denoted as the coefficient of influence of humidity on surface tension.
[0041] Electric field frequency compensation formula: ,in, The current applied electric field frequency reference value, This is the coefficient representing the effect of temperature on the dielectric constant. This is the coefficient representing the effect of humidity on the dielectric constant.
[0042] The adaptive adjustment amount of the water curtain light brightness is calculated based on the ambient light intensity value and the light disturbance intensity level.
[0043] Light brightness compensation The formula is: ,in, This is the maximum output brightness of the water curtain lights. This represents the ambient light intensity value. This is the light sensitivity coefficient. This is the current base brightness value of the water curtain lights. It is the base of the natural logarithm.
[0044] The wind compensation, temperature compensation, and light compensation are superimposed onto the corresponding dimensions of the morphological control parameters, density control parameters, and timing control parameters, respectively, to obtain the corrected control parameters.
[0045] It should be noted that the compensation deflection angle and compensation deflection direction angle in the wind compensation are added to the target deflection angle and target curvature in the shape control parameters in a vector superposition manner, one dimension at a time. The corrected target deflection angle is equal to the sum of the original target deflection angle and the compensation deflection angle, and the corrected target curvature is equal to the sum of the original target curvature and the curvature offset corresponding to the compensation deflection direction angle. The electric field amplitude compensation and electric field frequency compensation in the temperature compensation are added to the target water flow rate and target water droplet density in the density control parameters, respectively. The corrected target water flow rate is determined by the sum of the original target water flow rate and the electric field amplitude compensation, and the corrected target water droplet density is determined by the sum of the original target water droplet density and the electric field frequency compensation. The illumination compensation... The light brightness compensation is additively added to the target action duration in the timing control parameters. The corrected light action duration is determined by adding the light brightness compensation to the original target action duration to obtain the time increment. At the same time, the light brightness compensation is also synchronously mapped to the PWM duty cycle adjustment of the light control signal, which works together with the target action timing to finely adjust the light on / off timing. After all the superposition operations are completed, the corrected shape control parameters, the corrected density control parameters, and the corrected timing control parameters together constitute the corrected control parameters. These corrected control parameters are transmitted to the voltage mapping mathematical model to drive each nozzle electrode array to generate the corresponding voltage control signal, thereby realizing the precise control of the final shape of the water curtain by the environmental compensation correction.
[0046] Step 3: Manipulation of the liquid jet: After obtaining the corrected control parameters, they are converted into voltage signals of the electrode array at each nozzle. By applying a programmable high-voltage electrostatic field to different electrodes, the electric field force is used to actively manipulate the jet liquid at the nozzle outlet, thereby controlling the deflection angle, curvature, splitting mode, droplet size, and falling trajectory of the water column.
[0047] In a specific embodiment, the conversion to voltage signals of the electrode array at each nozzle is carried out as follows: based on the corrected control parameters, the voltage and frequency values to be applied to each electrode around each nozzle are calculated through a voltage mapping mathematical model, and the corresponding voltage control signals are generated.
[0048] The voltage mapping mathematical model calculates the target voltage value of each electrode based on the following dielectric electrophoretic force deflection formula: ,in, The corrected target deflection angle. Where is the dielectric constant of water. Where is the radius of the water column. for The real part of the function, Let be the target electric field intensity vector generated by each electrode at the nozzle exit. The mass of a water column per unit length. It is the acceleration due to gravity. It refers to the mathematical constant pi (π). The amplitude is determined by the target water flow rate and the electric field amplitude compensation amount in the corrected control parameters. The frequency is determined by the target droplet density and the electric field frequency compensation amount in the modified control parameters.
[0049] In a specific embodiment, the active manipulation of the jet liquid at the nozzle outlet using electric field force is as follows: a programmable high-voltage electrostatic field of 0 to 10 kV is applied to each electrode. Water molecules are subjected to dielectric electrophoresis force in the non-uniform electric field. By adjusting the amplitude difference of the voltage of each electrode, a resultant force in the horizontal direction is generated, causing the water column to deflect in a controllable manner. By adjusting the phase difference of the voltage of each electrode, a rotating electric field is generated, causing the water column to undergo controllable bending and spiral shape changes.
[0050] Simultaneously, the Rayleigh instability of the water column is controlled by modulating the electric field frequency. The following formula for Rayleigh instability fracture frequency is used: ,in, The surface tension coefficient of water, The density of water, Where is the radius of the water column. This is the dynamic viscosity of water.
[0051] The diameter of the water droplets formed after the breakage Calculated using the following formula: , in, The most unstable wavelength; when the electric field frequency is... When matched with the inherent Rayleigh instability frequency of the water column, the water column actively breaks into water droplets at a predetermined position, by adjusting the electric field frequency. Make it equal to the current water column radius Matching the physical parameters of water to achieve the desired droplet size And precise control of the fracture location.
[0052] Step 4: Dynamic voltage adjustment: The actual shape image of the target water curtain is acquired in real time by a high-speed camera device. The actual shape image is compared with the shape of the target water curtain to calculate the deviation value. The voltage signal is dynamically adjusted according to the deviation value through an adaptive control algorithm. At the same time, when the environmental disturbance type is wind speed disturbance and the disturbance intensity level exceeds the set level threshold, the feedforward compensation mode is activated.
[0053] In a specific embodiment, the dynamic adjustment of the voltage signal based on the deviation value using an adaptive control algorithm is as follows: The image processing module extracts the actual water curtain morphological features using background subtraction and edge detection algorithms. The extracted actual morphological features are then compared frame-by-frame with the target deflection angle, target curvature, target falling trajectory, and target water droplet density corresponding to the target morphology to obtain morphological deviation values, positional deviation values, and density deviation values. These deviation values are then input into the formula for voltage correction. Calculate using the following formula: , ,in, for The deviation between the actual deflection angle of the water column and the target deflection angle at any given time. for The target deflection angle at any given moment. for The actual deflection angle is constantly captured by a high-speed camera. These are the proportional coefficient, integral coefficient, and differential coefficient, respectively.
[0054] It should be noted that after the high-speed camera captures water curtain images at a frame rate of no less than 30 frames per second, it transmits the images to the image processing module in real time. The image processing module first uses a background subtraction algorithm to perform pixel-by-pixel difference operations between the current frame image and a pre-established image without a water curtain background, removing static background interference and separating the foreground image of the water curtain area. Subsequently, the Canny edge detection operator is applied to the foreground image to extract the contour edges of the water columns in the water curtain area, and the Hough transform is used to detect the boundary direction of each water column. Combined with a skeleton extraction algorithm, the center line of each water column is located. Based on the extracted water column contours and centerlines, the image processing module calculates the actual deflection angle, actual curvature, actual falling trajectory curve, and actual droplet density of the water column corresponding to each nozzle frame by frame. The actual morphological features calculated frame by frame are compared with the target deflection angle, target curvature, target falling trajectory, and target droplet density corresponding to the target morphology to obtain the morphological deviation value, positional deviation value, and density deviation value at each moment. The three types of deviation values are organized into a deviation vector sequence according to the timestamp order and transmitted to the adaptive controller as the input for closed-loop regulation.
[0055] The voltage correction amount is calculated in real time using a formula. This signal is then superimposed on the current voltage signal, and the voltage signals of each electrode are adjusted in real time until the deviation is corrected. When the water level is below a set threshold, closed-loop precise control of the water curtain pattern is achieved.
[0056] In a specific embodiment, when the environmental disturbance type is wind speed disturbance and the disturbance intensity level exceeds the set level threshold, the feedforward compensation mode is activated. The specific activation process is as follows: when the wind speed value exceeds 2.5 m / s, the wind speed disturbance intensity level is determined to be a strong disturbance, and the step of pausing the acquisition of actual shape images for closed-loop deviation correction is paused. At the same time, the feedforward compensation mode is activated. The feedforward compensation mode directly calls the wind drift compensation amount and horizontal offset compensation amount calculated by the wind compensation model, and superimposes the compensation amount into the voltage signal in an open-loop manner, no longer relying on the deviation feedback correction of the high-speed camera device.
[0057] Once the wind speed value recovers to below 2.0 m / s and remains stable for more than 10 seconds, the process switches from feedforward compensation mode back to real-time acquisition of the actual shape image of the target water curtain for closed-loop control.
[0058] If the environmental disturbance type is temperature disturbance, humidity disturbance, or light disturbance, the closed-loop control will continue to operate, and the corresponding compensation corrections calculated by the temperature compensation model and the light compensation model will be superimposed on the closed-loop control.
[0059] Examples of embodiments of the present invention Figure 2 As shown, it includes the following modules: Suitable water curtain display judgment module: used to collect environmental data through a sensor array arranged around the target water curtain device. The environmental data includes wind speed, wind direction, temperature, humidity, ambient light intensity, and audience position and density information, and then judges whether the current environment is in the benchmark range suitable for water curtain display. If it exceeds the benchmark range, it analyzes the corresponding environmental disturbance type and disturbance intensity level.
[0060] Environmental compensation and correction module: In response to the control commands input by the target user, it generates a dynamic water curtain effect sequence through a generative engine, decomposes the dynamic water curtain effect sequence into shape control parameters, density control parameters, and timing control parameters, and then performs environmental compensation and correction on the shape control parameters, density control parameters, and timing control parameters according to environmental data and the type and intensity level of environmental disturbances to obtain the corrected control parameters.
[0061] Liquid jet manipulation module: After obtaining the corrected control parameters, it converts them into voltage signals for the electrode array at each nozzle. By applying a programmable high-voltage electrostatic field to different electrodes, it actively manipulates the jet liquid at the nozzle outlet using the electric field force, thereby controlling the deflection angle, curvature, splitting mode, droplet size, and falling trajectory of the water column.
[0062] Voltage dynamic adjustment module: It is used to acquire the actual shape image of the target water curtain in real time through a high-speed camera device, compare the actual shape image with the shape of the target water curtain to calculate the deviation value, and dynamically adjust the voltage signal according to the deviation value through an adaptive control algorithm. At the same time, when the environmental disturbance type is wind speed disturbance and the disturbance intensity level exceeds the set level threshold, the feedforward compensation mode is activated.
[0063] The examples described in this invention are not limited to the specific embodiments listed above. The examples are merely illustrative to facilitate understanding of the invention and do not constitute a limitation on the scope of protection of this invention. Any modifications, equivalent substitutions, etc., made within the spirit and principles of this invention should be included within the scope of protection.
[0064] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they should all fall within the protection scope of the present invention.
Claims
1. An intelligent water curtain decoration control method, characterized in that, Includes the following steps: Step 1: Determining the suitability of a water curtain display: Environmental data is collected by an array of sensors placed around the target water curtain device. The environmental data includes wind speed, wind direction, temperature, humidity, ambient light intensity, and audience location and density information. This allows us to determine whether the current environment is within the baseline range suitable for a water curtain display. If it exceeds the baseline range, we analyze the corresponding environmental disturbance type and disturbance intensity level. Step 2, Environmental Compensation Correction: In response to the control commands input by the target user, a dynamic water curtain effect sequence is generated through the generative engine. The dynamic water curtain effect sequence is then decomposed into shape control parameters, density control parameters, and timing control parameters. Based on environmental data and the type and intensity level of environmental disturbances, environmental compensation correction is performed on the shape control parameters, density control parameters, and timing control parameters to obtain the corrected control parameters. Step 3, Manipulation of the liquid jet: After obtaining the corrected control parameters, they are converted into voltage signals of the electrode array at each nozzle. By applying a programmable high-voltage electrostatic field to different electrodes, the electric field force is used to actively manipulate the jet liquid at the nozzle outlet, thereby controlling the deflection angle, curvature, splitting mode, droplet size, and falling trajectory of the water column. Step 4: Dynamic voltage adjustment: The actual shape image of the target water curtain is acquired in real time by a high-speed camera device. The actual shape image is compared with the shape of the target water curtain to calculate the deviation value. The voltage signal is dynamically adjusted according to the deviation value through an adaptive control algorithm. At the same time, when the environmental disturbance type is wind speed disturbance and the disturbance intensity level exceeds the set level threshold, the feedforward compensation mode is activated.
2. The intelligent water curtain decoration control method according to claim 1, characterized in that, The environmental data is collected by a sensor array arranged around the target water curtain device. The specific data collection process is as follows: Wind speed, wind direction, temperature, humidity, light intensity, and audience position and density are collected by wind speed sensors, temperature and humidity sensors, light sensors, and infrared or visual sensors arranged around the target water curtain device. The raw data collected by various sensors are aligned with a unified timestamp and integrated into an environmental state vector. The environmental state vector is a 7-dimensional vector containing wind speed value, wind direction value, temperature value, humidity value, light intensity value, audience density value, and average audience distance value.
3. The intelligent water curtain decoration control method according to claim 2, characterized in that, If the disturbance exceeds the baseline range, the corresponding environmental disturbance type and disturbance intensity level will be analyzed. The specific analysis process is as follows: The data of each dimension in the environmental state vector are compared one by one with the preset environmental threshold. If the wind speed value exceeds 2.5 m / s, it is analyzed as a wind speed disturbance and the amount of wind speed exceeding the limit is recorded as the disturbance intensity level. If the temperature value is below 5℃ or above 35℃, it is analyzed as a temperature disturbance and the temperature offset is recorded as the disturbance intensity level. If the humidity value is below 30%RH or above 80%RH, it is analyzed as a humidity disturbance and the humidity offset is recorded as the disturbance intensity level. If the light intensity value is higher than 500 lux, it is analyzed as a light disturbance and the amount of light exceeding the limit is recorded as the disturbance intensity level.
4. The intelligent water curtain decoration control method according to claim 3, characterized in that, The water curtain dynamic effect sequence is decomposed into shape control parameters, density control parameters, and timing control parameters. The specific decomposition process is as follows: The target user describes the desired water curtain effect in natural language. After receiving the description, the generative engine generates a sequence of dynamic water curtain effects containing time series through a pre-trained text-to-dynamic effects mapping model. The mapping model is built on the Transformer architecture. The training samples are derived from a paired dataset of historical water curtain effect description texts and corresponding control parameter sequences. The number of training samples is ≥10,000, covering a variety of effect types. During execution, the natural language description text is segmented and vectorized and then input into the model. The model outputs a sequence of dynamic water curtain effects. The sequence is then decomposed into morphological control parameters, density control parameters, and temporal control parameters corresponding to each time point along the time axis. Among them, the shape control parameters include the target deflection angle and target curvature of the water column of each nozzle, the density control parameters include the target water flow rate and target water droplet density per unit time of each nozzle, and the timing control parameters include the target action timing and target action duration of each nozzle.
5. The intelligent water curtain decoration control method according to claim 4, characterized in that, The environmental compensation correction process for the morphological control parameters, density control parameters, and timing control parameters is as follows: The wind drift compensation amount and the horizontal offset compensation amount of the falling trajectory are calculated based on the wind speed value, wind direction value and wind speed disturbance intensity level. Compensation deflection angle The formula is: , ,in, For ambient wind speed, The time it takes for the water column to fall. The vertical height of the nozzle from the water curtain's landing surface. It is the acceleration due to gravity; Compensation deflection direction angle The formula is: ,in, For the ambient wind direction angle, This is the initial spray direction angle of the nozzle; The compensation amount of electric field parameters corresponding to the changes in surface tension and dielectric constant of water is calculated based on temperature and humidity values and the intensity levels of temperature and humidity disturbances. Electric field amplitude compensation The formula is: ,in, The current applied electric field amplitude is the reference value. This is the current ambient temperature value. For the preset reference temperature, This represents the current ambient humidity value. The preset baseline humidity, This is the coefficient representing the effect of temperature on surface tension. The coefficient representing the effect of humidity on surface tension; Electric field frequency compensation formula: ,in, The current applied electric field frequency reference value, This is the coefficient representing the effect of temperature on the dielectric constant. The coefficient representing the effect of humidity on the dielectric constant; The adaptive adjustment amount of the water curtain light brightness is calculated based on the ambient light intensity value and the light disturbance intensity level; Light brightness compensation The formula is: ,in, This is the maximum output brightness of the water curtain lights. This represents the ambient light intensity value. This is the light sensitivity coefficient. This is the current base brightness value of the water curtain lights. It is the base of the natural logarithm; The wind compensation, temperature compensation, and light compensation are superimposed onto the corresponding dimensions of the morphological control parameters, density control parameters, and timing control parameters, respectively, to obtain the corrected control parameters.
6. The intelligent water curtain decoration control method according to claim 5, characterized in that, The conversion process involves converting the voltage signals of the electrode array at each nozzle into voltage signals. The specific conversion process is as follows: Based on the corrected control parameters, the voltage and frequency values to be applied to each electrode around each nozzle are calculated using a voltage mapping mathematical model, and the corresponding voltage control signals are generated. The voltage mapping mathematical model calculates the target voltage value of each electrode based on the following dielectric electrophoretic force deflection formula: ,in, The corrected target deflection angle. Where is the dielectric constant of water. Where is the radius of the water column. for The real part of the function, Let be the target electric field intensity vector generated by each electrode at the nozzle exit. The mass of a water column per unit length. It is the acceleration due to gravity. It refers to the mathematical constant pi (π). The amplitude is determined by the target water flow rate and the electric field amplitude compensation amount in the corrected control parameters. The frequency is determined by the target droplet density and the electric field frequency compensation amount in the modified control parameters.
7. The intelligent water curtain decoration control method according to claim 6, characterized in that, The method of actively manipulating the jet liquid at the nozzle outlet using an electric field is as follows: A programmable high-voltage electrostatic field of 0 to 10 kV is applied to each electrode. Water molecules are subjected to dielectric electrophoresis force in the non-uniform electric field. By adjusting the amplitude difference of the voltage of each electrode, a resultant force in the horizontal direction is generated, which causes the water column to deflect in a controllable manner. By adjusting the phase difference of the voltage of each electrode, a rotating electric field is generated, which causes the water column to bend and change its spiral shape in a controllable manner. Simultaneously, the Rayleigh instability of the water column is controlled by modulating the electric field frequency. The following formula for Rayleigh instability fracture frequency is used: ,in, The surface tension coefficient of water, The density of water, Where is the radius of the water column. The dynamic viscosity of water; The diameter of the water droplet formed after the break Calculated using the following formula: , in, The most unstable wavelength; when the electric field frequency is... When matched with the inherent Rayleigh instability frequency of the water column, the water column actively breaks into water droplets at a predetermined position, by adjusting the electric field frequency. Make it equal to the current water column radius Matching the physical parameters of water, To achieve the size of water droplets And precise control of the fracture location.
8. The intelligent water curtain decoration control method according to claim 7, characterized in that, The voltage signal is dynamically adjusted based on the deviation value using an adaptive control algorithm. The specific adjustment process is as follows: The image processing module extracts the actual water curtain morphology features using background subtraction and edge detection algorithms. It then compares these extracted features frame-by-frame with the target's deflection angle, curvature, trajectory, and droplet density to obtain morphological, positional, and density deviation values. These deviation values are then input into a formula for voltage correction. Calculate using the following formula: , ,in, for The deviation between the actual deflection angle of the water column and the target deflection angle at any given time. for The target deflection angle at any given moment. for The actual deflection angle is constantly captured by a high-speed camera. These are the proportional coefficient, integral coefficient, and differential coefficient, respectively. The voltage correction amount is calculated in real time using a formula. This signal is then superimposed on the current voltage signal, and the voltage signals of each electrode are adjusted in real time until the deviation is corrected. When the water level is below a set threshold, closed-loop precise control of the water curtain pattern is achieved.
9. The intelligent water curtain decoration control method according to claim 8, characterized in that, When the environmental disturbance type is wind speed disturbance and the disturbance intensity level exceeds the set level threshold, the feedforward compensation mode is activated. The specific activation process is as follows: When the wind speed exceeds 2.5 m / s, the wind speed disturbance intensity level is determined to be a strong disturbance and the step of collecting actual shape images for closed-loop deviation correction is suspended. At the same time, the feedforward compensation mode is started. The feedforward compensation mode directly calls the wind drift compensation amount and horizontal offset compensation amount calculated by the wind compensation model, and superimposes the compensation amount into the voltage signal in an open-loop manner, no longer relying on the deviation feedback correction of the high-speed camera device. After the wind speed value recovers to below 2.0 m / s and remains stable for more than 10 seconds, switch back from feedforward compensation mode to real-time acquisition of the actual shape image of the target water curtain for closed-loop control. If the environmental disturbance type is temperature disturbance, humidity disturbance, or light disturbance, the closed-loop control will continue to operate, and the corresponding compensation corrections calculated by the temperature compensation model and the light compensation model will be superimposed on the closed-loop control.
10. A system implemented using the intelligent water curtain decoration control method according to any one of claims 1-9, characterized in that, Includes the following modules: Suitable water curtain display judgment module: It is used to collect environmental data through a sensor array arranged around the target water curtain device. The environmental data includes wind speed, wind direction, temperature, humidity, ambient light intensity, and audience position and density information, and then judges whether the current environment is within the benchmark range suitable for water curtain display. If it exceeds the benchmark range, it analyzes the corresponding environmental disturbance type and disturbance intensity level. Environmental compensation and correction module: In response to the control commands input by the target user, it generates a dynamic water curtain effect sequence through a generative engine, decomposes the dynamic water curtain effect sequence into shape control parameters, density control parameters and timing control parameters, and then performs environmental compensation and correction on the shape control parameters, density control parameters and timing control parameters according to environmental data and the type and intensity level of environmental disturbances to obtain the corrected control parameters. Liquid jet manipulation module: After obtaining the corrected control parameters, it converts them into voltage signals of the electrode array at each nozzle. By applying a programmable high-voltage electrostatic field to different electrodes, it actively manipulates the jet liquid at the nozzle outlet using the electric field force, thereby controlling the deflection angle, curvature, splitting mode, droplet size, and falling trajectory of the water column. Voltage dynamic adjustment module: It is used to acquire the actual shape image of the target water curtain in real time through a high-speed camera device, compare the actual shape image with the shape of the target water curtain to calculate the deviation value, and dynamically adjust the voltage signal according to the deviation value through an adaptive control algorithm. At the same time, when the environmental disturbance type is wind speed disturbance and the disturbance intensity level exceeds the set level threshold, the feedforward compensation mode is activated.
Citation Information
Patent Citations
Water curtain control method and device
CN108508769A