Landscape sculpture device driven by wind energy and capable of generating environmental music

Abstract

The invention provides a landscape sculpture device driven by wind energy and generating environmental music, which comprises a wind energy acquisition conversion module, a control processing module, an audio synthesis playing module and a sculpture body, after wind energy is converted into electricity, music signals are generated and played according to wind speed and wind direction, and each module is integrated in the sculpture. Environment-friendly utilization of energy can be achieved, meanwhile, unique music is generated through parameters such as wind speed and wind direction, artistic atmosphere is added to the environment, and landscape interactivity and ornamental value are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of renewable energy utilization and environmental art device, and more particularly, relates to a landscape sculpture device driven by wind energy and generating environmental music. BACKGROUND

[0002] In modern urban landscape design, traditional landscape sculptures are mostly static displays, lacking interaction with the environment and dynamic changes, and it is difficult to meet the diversified needs of people for landscape art. In recent years, with the development of renewable energy technology, some landscape devices have begun to try to integrate solar energy, wind energy and other clean energy to achieve energy self-sufficiency and environmental protection goals. For example, solar-powered landscape lighting devices are relatively common, but such devices mostly focus on single lighting functions and fail to fully tap the potential of clean energy in diversified applications in landscape art.

[0003] In terms of music and environment combination, although some devices can play preset music, these music and environmental factors lack real-time correlation and cannot dynamically generate music according to environmental changes, resulting in low integration of music and environment and lack of naturalness and artisticity. In addition, some existing wind energy utilization devices mostly focus on power generation and have few applications of wind energy and artistic devices, failing to fully exploit the diversity and artistic value of wind energy.

[0004] In the implementation of the embodiments of the present application, there are at least the following problems or defects in the prior art: the existing landscape sculptures lack dynamic interaction with the environment and fail to fully utilize clean energy to achieve diversified artistic effects; the existing music and environment devices cannot generate music in real time according to environmental factors, and the integration of music and environment is low; the application of wind energy and artistic devices is less, and the artistic value of wind energy cannot be fully tapped. SUMMARY

[0005] The present application provides a landscape sculpture device driven by wind energy and generating environmental music, comprising: a wind energy collection and conversion module, a control and processing module, an audio synthesis and playback module, and a landscape sculpture body; The wind energy collection and conversion module is used for collecting environmental wind energy and converting it into electrical energy. The control and processing module is electrically connected with the wind energy collection and conversion module, and is used for managing the electrical energy and generating a music control signal based on environmental wind energy parameters. The audio synthesis and playback module is electrically connected with the control and processing module, and is used for receiving the music control signal and synthesizing and playing corresponding environmental music. The landscape sculpture body is used for carrying and accommodating the wind energy collection and conversion module, the control and processing module, and the audio synthesis and playback module.

[0006] Further, the wind energy collection and conversion module comprises a micro wind turbine, a wind speed and direction sensor, and an electrical energy storage unit; The micro wind turbine is configured to convert wind energy into unstable raw direct current electrical energy; The wind speed and direction sensor is configured to collect real-time environmental wind speed and direction values and output digital signals containing wind speed and direction data; The electrical energy storage unit is electrically connected to the micro wind turbine and configured to store the raw direct current electrical energy and output stable direct current working voltage after voltage stabilization processing.

[0007] Further, the control and processing module comprises a power management unit, a data processing unit, and a signal generation unit; The power management unit is electrically connected to the electrical energy storage unit and configured to convert the stable direct current working voltage into multiple working voltages required by the control and processing module and the audio synthesis and playback module, and provide overvoltage protection and undervoltage lockout functions; The data processing unit is electrically connected to the wind speed and direction sensor and configured to receive the digital signals containing wind speed and direction data, perform sliding average filtering processing on the wind speed data to eliminate sudden disturbances, and calculate music generation parameters based on the filtered wind speed and direction data; The signal generation unit is electrically connected to the data processing unit and configured to generate digital music control signals containing pitch control information, timbre control information, and rhythm control information based on the music generation parameters.

[0008] Further, the data processing unit calculates music generation parameters including a fundamental frequency value f, a rhythm interval value T, and a timbre identifier ; The mapping relationship between the fundamental frequency value f and the environmental wind speed value v is determined by a first function f = F(v), where F(v) is a continuously derivable and monotonically increasing function within a preset wind speed interval ; The mapping relationship between the rhythm interval value T and the environmental wind speed value v is determined by a second function T = G(v), where G(v) is a continuously derivable and monotonically decreasing function within the preset wind speed interval; The mapping relationship between the timbre identifier and the environmental wind direction value θ is determined by querying a pre-set wind direction-timbre mapping table, which stores eight different timbre characteristics corresponding to eight main wind directions.

[0009] Further, the specific expression of the first function F(v) is a piecewise linear function: When when v < v1, ; when v1≤ v ≤ v2, f = f1+ k2*(v-v1); wherein, v1 is a preset first wind speed threshold, v2 is a preset maximum working wind speed, v1 < v < v2, , fmin is a preset minimum frequency, f1 is an intermediate frequency corresponding to v1, k1 and k2 are different positive real number proportion coefficients, and k2 > k1.

[0010] Further, the audio synthesis and playing module comprises an audio synthesizer, a digital-analog converter, an audio power amplifier, and a loudspeaker array. The audio synthesizer is electrically connected to the signal generation unit, and is configured to generate a high-resolution digital audio signal by a digital audio synthesis algorithm according to the digital music control signal. The digital-analog converter is electrically connected to the audio synthesizer, and is configured to convert the high-resolution digital audio signal into an analog audio signal. The audio power amplifier is electrically connected to the digital-analog converter, and is configured to amplify the analog audio signal to a driving level. The loudspeaker array is electrically connected to the audio power amplifier, and is composed of a plurality of loudspeaker units distributed at different positions of the landscape sculpture body, and is configured to convert the amplified analog audio signal into a sound wave signal and form a stereo sound field in space.

[0011] Further, the digital audio synthesis algorithm is an additive synthesis algorithm, and a synthesis formula thereof is as follows:

[0012] wherein y(t) is an audio signal amplitude at time t, is an amplitude envelope of an i-th harmonic at time t, is a fundamental frequency, is an initial phase of the i-th harmonic; The amplitude envelope is determined by the timbre control information, the fundamental frequency is determined by the pitch control information, and a maximum value of the harmonic number i is determined by the timbre identifier.

[0013] Further, the data processing unit further comprises an environmental parameter fusion subunit, which is configured to perform fusion processing on the environmental wind speed value and the environmental wind direction value and a real-time time parameter. The real-time time parameter comprises a current hour value H and a current month value M; The music generation parameter further comprises an amplitude modulation depth D, and a mapping relationship between the amplitude modulation depth D and the current hour value H is determined by a third function D=H(H), wherein H(H) is a sine function with a 24-hour period.

[0014] Further, an ambient light sensing module and a dynamic lighting module are further included; The ambient light sensing module is electrically connected with the control and processing module, and is configured to collect an ambient light intensity value and output a light intensity signal; The dynamic lighting module is electrically connected with the control and processing module, and comprises a plurality of RGB LED lamp groups and a light controller; The control and processing module is further configured to generate a lighting control signal according to the ambient light intensity value and the ambient wind energy parameter, and the light controller drives the RGB LED lamp groups to generate a dynamic light effect synchronized with the ambient music according to the lighting control signal.

[0015] Further, the dynamic light effect comprises color gradient, brightness pulsation and space scanning; The hue value of the color gradient is positively correlated with the ambient wind speed value; The frequency of the brightness pulsation is synchronized with the rhythm of the ambient music; The direction of the space scanning is associated with the ambient wind direction value.

[0016] Further, a user interaction module is further included, and the user interaction module is electrically connected with the control and processing module; The user interaction module comprises a touch sensing area and a wireless communication unit; The touch sensing area is arranged on the surface of the landscape sculpture body, and is configured to detect a touch operation of a user and generate a touch signal; The wireless communication unit is configured to establish a communication connection with a mobile terminal and receive a user configuration instruction; The control and processing module adjusts a calculation rule of the music generation parameter according to the touch signal or the user configuration instruction.

[0017] Further, the user configuration instruction comprises a music style selection instruction, a volume adjustment instruction and a light mode selection instruction; The control and processing module selects a target synthesis algorithm from a plurality of preset synthesis algorithms according to the music style selection instruction; The maximum amplitude of the digital audio signal is adjusted according to the volume adjustment instruction; The display mode of the dynamic light effect is adjusted according to the light mode selection instruction.

[0018] Further, the eight timbre characteristics stored in the wind direction-timbre mapping table correspond to flute timbre, string timbre, bell timbre, human voice timbre, percussion timbre, electronic timbre, natural timbre and mixed timbre respectively. Each of the timbre characteristics is defined by a set of harmonic amplitude ratio parameters stored in the non-volatile memory of the control and processing module.

[0019] Further, the loudspeaker array includes four full-frequency loudspeaker units arranged in the east, south, west and north directions of the landscape sculpture body respectively. The audio synthesizer controls the driving signal intensity of the four full-frequency loudspeaker units through the amplitude panning algorithm to generate a spatial sound field rotation effect varying with the environmental wind direction value.

[0020] Further, the landscape sculpture body is made of weather-resistant steel material and has a spiral rising streamline structure. The spiral rising streamline structure is internally provided with an equipment mounting cavity and externally provided with an acoustic through-hole. The wind energy collection and conversion module is arranged at the top of the spiral rising streamline structure, and the loudspeaker array of the audio synthesis and playback module is arranged behind the acoustic through-hole.

[0021] The above-mentioned embodiments of the present application have at least the following beneficial effects: 1. The wind energy collection and conversion module converts environmental wind energy into electrical energy and stores it to provide stable power support for the operation of the device, realizes efficient use of clean energy, reduces dependence on traditional energy, reduces energy costs, reduces carbon emissions, conforms to the environmental protection concept, and solves the problems of limited energy supply and insufficient environmental protection of existing landscape devices.

[0022] 2. The control and processing module generates a music control signal according to the real-time collected wind speed and wind direction data, and the audio synthesis and playback module synthesizes and plays environmental music matched with the environmental wind energy parameters accordingly, so that the music is closely connected with the natural environmental factors, the pitch, rhythm and timbre of the music can be dynamically adjusted according to the change of the wind, a unique auditory experience is created, the artistic and interactive nature of the landscape sculpture is improved, and the problems of the existing music environment device that cannot generate music in real time according to environmental factors and low integration of music and environment are solved.

[0023] 3, in combination with the ambient light sensing module and dynamic lighting module, according to the ambient light intensity and wind energy parameters to generate dynamic light effects synchronized with the environment music, including color gradient, brightness pulsation and space scanning, etc., further enhance the visual effect of the landscape sculpture, so that the device can also present rich artistic expression under the condition of night or low light, improve the ornamental and attractiveness of the landscape, solve the problem of insufficient artistic expression of the existing landscape device under the condition of night or low light. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description read in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are illustrated by way of example in which: Figure 1 A structural schematic diagram of a landscape sculpture device driven by wind energy and generating environment music according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The principles and spirits of the present application will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and implement the present application, and do not limit the scope of the present application in any way. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0026] Those skilled in the art know that the embodiments of the present application can be implemented as a system, device, apparatus, method or computer program product. Therefore, the present application can be embodied in the form of a complete hardware, a complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.

[0027] It should be noted that any number of elements in the drawings is used for example and not limitation, and any naming is only used for distinction and does not have any limiting meaning.

[0028] The principles and spirits of the present application will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are given only to enable those skilled in the art to better understand and implement the present application, and do not limit the scope of the present application in any way. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art. Figure 1 Figure 1 A structural schematic diagram of a landscape sculpture device driven by wind energy and generating environment music according to an embodiment of the present application. As shown in Figure 1 A landscape sculpture device driven by wind energy and generating environment music includes: a wind energy collection and conversion module 101, a control and processing module 102, an audio synthesis and playback module 103, and a landscape sculpture body 104; The wind energy collection and conversion module is used to collect ambient wind energy and convert it into electrical energy. ​The control and processing module is electrically connected with the wind energy collection and conversion module, and is configured to manage the electric energy and generate a music control signal based on an environmental wind energy parameter. The audio synthesis and playing module is electrically connected with the control and processing module, and is configured to receive the music control signal and synthesize and play corresponding environmental music. The landscape sculpture body is configured to carry and accommodate the wind energy collection and conversion module, the control and processing module, and the audio synthesis and playing module.

[0029] The wind energy collection and conversion module is a key part of the device for obtaining energy, which converts wind energy into electric energy through a micro wind turbine; the control and processing module is the core of the logic conversion of wind energy parameters and music generation, which processes the collected wind energy parameters and generates a music control signal; the audio synthesis and playing module is the execution part of the generated music signal into audible music, which plays music through a speaker array; and the landscape sculpture body provides physical support and artistic appearance for the entire device.

[0030] Specifically, the wind energy collection and conversion module includes a micro wind turbine, a wind speed and direction sensor, and an electric energy storage unit. The micro wind turbine converts wind energy into unstable raw direct current electric energy through its blades rotating under the action of wind; the wind speed and direction sensor collects real-time environmental wind speed and direction values and converts these data into digital signal output; the electric energy storage unit is responsible for storing the raw direct current electric energy generated by the micro wind turbine and outputs stable direct current working voltage through voltage stabilization processing, providing stable power support for other modules of the device. The control and processing module includes a power management unit, a data processing unit, and a signal generation unit.

[0031] The power management unit is responsible for converting the stable direct current working voltage into multiple working voltages, while providing overvoltage protection and undervoltage lockout functions to ensure safe operation of the device; the data processing unit receives the digital signal of the wind speed and direction sensor, performs sliding average filtering processing on the wind speed data to eliminate sudden disturbances, and calculates music generation parameters based on the filtered data; the signal generation unit generates a digital music control signal containing pitch, timbre, and rhythm control information according to these parameters. The audio synthesis and playing module includes an audio synthesizer, a digital-to-analog converter, an audio power amplifier, and a speaker array. The audio synthesizer generates a digital audio signal based on the music control signal through a digital audio synthesis algorithm; the digital-to-analog converter converts the digital audio signal into an analog audio signal; the audio power amplifier amplifies the analog audio signal to a driving level; and the speaker array converts the amplified analog audio signal into a sound wave signal and forms a stereo sound field in space.

[0032] Preferably, the music generation parameter calculation process in the data processing unit can be further refined. For example, the mapping relationship between the fundamental frequency value and the environmental wind speed value is determined by a monotonically increasing function that is continuous and derivable within a preset wind speed interval, which means that as the wind speed increases, the fundamental frequency value will also increase accordingly, resulting in music of different pitches. The mapping relationship between the rhythm interval value and the environmental wind speed value is determined by a monotonically decreasing function, indicating that the greater the wind speed, the shorter the rhythm interval, and the faster the music rhythm. The mapping relationship between the timbre identifier and the environmental wind direction value is determined by querying a preset wind direction-timbre mapping table, which stores eight different timbre characteristics corresponding to the eight main wind directions, such as the flute timbre for north wind, the string timbre for east wind, etc.

[0033] In addition, the additive synthesis algorithm adopted by the audio synthesizer generates rich audio signals by superimposing multiple harmonic signals, where the amplitude envelope is determined by the timbre control information, the fundamental frequency is determined by the pitch control information, and the number of harmonics is determined by the timbre identifier, thereby dynamically generating music with different timbres and pitches according to wind energy parameters.

[0034] In some embodiments, the wind energy collection and conversion module includes a micro wind turbine, a wind speed and direction sensor, and an electrical energy storage unit; The micro wind turbine is used to convert wind energy into unstable raw direct current electrical energy; The wind speed and direction sensor is used to collect real-time environmental wind speed and wind direction values and output digital signals containing wind speed and wind direction data; The electrical energy storage unit is electrically connected to the micro wind turbine and is used to store the raw direct current electrical energy and output a stable direct current working voltage after voltage stabilization processing.

[0035] Specifically, the micro wind turbine is a small-sized wind power generation device, usually composed of blades, a generator, and a control system. The blades rotate under the action of wind power, driving the generator to generate electrical energy. The wind speed and direction sensor is a device that can measure environmental wind speed and direction in real time, usually including a wind speed sensor and a wind direction sensor. The wind speed sensor can measure the speed of the wind, while the wind direction sensor can measure the direction of the wind. These sensors convert the measured wind speed and direction data into digital signals for use by the control and processing module. The electrical energy storage unit is usually composed of a battery or a supercapacitor, used to store the electrical energy generated by the micro wind turbine, and through a voltage stabilization circuit, the unstable direct current electrical energy is converted into a stable direct current working voltage, providing stable power support for other modules of the device.

[0036] Preferably, the blade design of the micro wind turbine can adopt a three-blade structure, which performs well in wind energy conversion efficiency and mechanical stability. The wind speed and direction sensor can use ultrasonic or mechanical sensors, which calculate wind speed and direction by measuring the propagation time of sound waves in the wind, with high precision and fast response. The voltage stabilizing circuit in the power storage unit can use linear or switching voltage stabilizers, with higher efficiency, suitable for long-term stable power supply occasions.

[0037] In addition, the power storage unit can also be equipped with power monitoring function, real-time monitoring of the remaining power of the battery or super capacitor, to ensure that the device can switch to backup power or enter low power mode in time when the power is low, thereby improving the reliability and service life of the device.

[0038] In some embodiments, the control and processing module includes a power management unit, a data processing unit and a signal generation unit; The power management unit is electrically connected with the power storage unit, for converting the stable DC working voltage into multiple working voltages required by the control and processing module and the audio synthesis and playback module, and providing overvoltage protection and undervoltage lockout function; The data processing unit is electrically connected with the wind speed and direction sensor, for receiving the digital signal containing wind speed data and wind direction data, performing sliding average filtering processing on the wind speed data to eliminate sudden interference, and calculating music generation parameters based on the filtered wind speed data and wind direction data; The signal generation unit is electrically connected with the data processing unit, for generating digital music control signal containing pitch control information, timbre control information and rhythm control information based on the music generation parameters.

[0039] Specifically, the power management unit is responsible for converting the stable DC working voltage provided by the power storage unit into multiple working voltages to meet the needs of the control and processing module and the audio synthesis and playback module. It also provides overvoltage protection and undervoltage lockout function to ensure safe operation of the device when the voltage is abnormal. The data processing unit receives the digital signal of the wind speed and direction sensor, performs sliding average filtering processing on the wind speed data to eliminate sudden interference, and calculates music generation parameters based on the filtered wind speed data and wind direction data. The signal generation unit generates digital music control signal containing pitch control information, timbre control information and rhythm control information according to these parameters. The specific meanings of these parameters are as follows: pitch control information determines the pitch of the music, timbre control information determines the timbre of the music, and rhythm control information determines the rhythm of the music.

[0040] Preferably, the moving average filtering process in the data processing unit is a common signal processing method that smooths data by averaging consecutive wind speed data, reducing interference caused by sudden changes in wind speed. For example, a moving average filter with a window size of 10 seconds can be set, wind speed data is collected every second, and then the average of the wind speed data in the 10 seconds is calculated as the current wind speed value. This processing method can effectively reduce the fluctuation of wind speed data and improve the stability and continuity of music generation. In addition, the signal generation unit can convert wind speed and wind direction data into specific pitch, timbre and rhythm parameters according to the preset mapping relationship when generating music control signals. For example, wind speed can be linearly mapped to pitch, the higher the wind speed, the higher the pitch; wind direction can be mapped to timbre, different wind directions correspond to different timbres; wind speed change rate can be mapped to rhythm, the faster the wind speed changes, the more compact the rhythm. These mapping relationships can be adjusted and optimized according to actual needs to generate music effects that meet user expectations.

[0041] In some embodiments, the data processing unit calculates music generation parameters including a fundamental frequency value f, a rhythm interval value T and a timbre identifier ; The mapping relationship between the fundamental frequency value f and the environmental wind speed value v is determined by a first function f = F(v), where F(v) is a continuously derivable and monotonically increasing function within a preset wind speed interval ; The mapping relationship between the rhythm interval value T and the environmental wind speed value v is determined by a second function T = G(v), where G(v) is a continuously derivable and monotonically decreasing function within the preset wind speed interval ; The mapping relationship between the timbre identifier and the environmental wind direction value θ is determined by querying a pre-stored wind direction-timbre mapping table, which stores eight different timbre characteristics corresponding to eight main wind directions.

[0042] When calculating music generation parameters, the data processing unit determines the basic characteristics of the music, including the fundamental frequency value, the rhythm interval value and the timbre identifier, according to the specific values of the environmental wind speed and wind direction through the preset functions and mapping tables. The fundamental frequency value determines the pitch of the music, the rhythm interval value determines the rhythm of the music, and the timbre identifier determines the timbre of the music. The calculation and mapping process of these parameters enables the device to generate unique music according to different wind speed and wind direction, enhancing the interactivity and artisticity of the device.

[0043] Specifically, the mapping relationship between the fundamental frequency value and the environmental wind speed value is determined by a monotonically increasing function that is continuous and derivable within a preset wind speed interval. This means that as the wind speed increases, the fundamental frequency value also increases accordingly, thereby producing music of different pitches. The mapping relationship between the rhythm interval value and the environmental wind speed value is determined by a monotonically decreasing function, indicating that the greater the wind speed, the shorter the rhythm interval, and the faster the music rhythm. The mapping relationship between the timbre identifier and the environmental wind direction value is determined by querying a preset wind direction-timbre mapping table, which stores eight different timbre characteristics corresponding to the eight main wind directions. For example, north wind corresponds to flute timbre, east wind corresponds to string timbre, etc. These mapping relationships can be adjusted and optimized according to actual needs to generate music effects that meet user expectations.

[0044] The second function T = G(v) is as follows: T = ; wherein, is a preset maximum rhythm interval, is a rhythm decay coefficient, and v is an environmental wind speed value, is a preset starting wind speed.

[0045] When calculating the fundamental frequency value, the data processing unit can divide the wind speed interval into multiple subintervals and set different mapping functions for each subinterval. For example, when the wind speed is in a lower interval, the change in the fundamental frequency value is relatively slow, while in a higher interval, the change in the fundamental frequency value is more significant. This segmented mapping method can ensure that the music maintains good auditory effects at different wind speeds.

[0046] For the calculation of the rhythm interval value, a reference rhythm interval can be set, and the reference interval can be adjusted according to the change in wind speed. For example, when the wind speed increases, the reference interval can be shortened in proportion, thereby speeding up the rhythm of the music. The determination of the timbre identifier can be achieved by matching the wind direction value with the preset wind direction-timbre mapping table. For example, if the wind direction is northeast wind, the timbre identifier can correspond to a mixed timbre, which is a mixture of multiple basic timbres, increasing the richness and diversity of the music.

[0047] In some embodiments, the specific expression of the first function F(v) is a segmented linear function: When ≤ v < v1, ; When v1≤ v ≤ v2, f = f1 + k2 * (v - v1); wherein, is a preset starting wind speed, is a preset maximum working wind speed, v1 is a preset first wind speed threshold, and v1 < v2 , is a preset minimum frequency, f1 is an intermediate frequency corresponding to v1, k1 and k2 are different positive real proportionality coefficients and k2 > k1.

[0048] The first function is a piecewise linear function that maps the ambient wind speed value to the base frequency value. This function design allows for flexible adjustment of the base frequency within different wind speed intervals to generate music of different pitches. By setting different linear segments, different frequency change rates can be achieved in the low wind speed and high wind speed intervals, respectively, to better adapt to different environmental conditions and music requirements. The design of this piecewise linear function enables the device to produce harmonious and varied music at different wind speeds, enhancing the musical expressiveness and adaptability of the device.

[0049] Specifically, the first function includes two linear segments. In the first linear segment, when the wind speed is between a preset start-up wind speed and a first wind speed threshold, the base frequency starts from a preset minimum frequency and increases linearly with the increase of wind speed, with the rate of increase determined by the proportionality coefficient. In the second linear segment, when the wind speed is between the first wind speed threshold and a preset maximum working wind speed, the base frequency starts from an intermediate frequency corresponding to the first wind speed threshold and increases linearly at a higher rate with the increase of wind speed. This design makes the base frequency change more gently in the low wind speed interval and more significantly in the high wind speed interval. For example, the preset start-up wind speed can be set to the minimum wind speed at which the device can effectively work, the first wind speed threshold can be set to an intermediate wind speed value to distinguish between low and high wind speed intervals, and the maximum working wind speed is the maximum wind speed that the device can withstand. The preset minimum frequency and intermediate frequency can be selected according to the pitch range of the music, and the proportionality coefficient can be adjusted according to actual needs to achieve the desired frequency change effect.

[0050] Preferably, in order to construct the first function, it is necessary to determine the preset starting wind speed, the first wind speed threshold and the maximum working wind speed in advance. These parameters can be set according to the physical characteristics of the device and the expected working environment. For example, the starting wind speed can be set to 2 meters per second, the first wind speed threshold can be set to 5 meters per second, and the maximum working wind speed can be set to 10 meters per second. The preset minimum frequency can be set to 200 Hz, and the intermediate frequency can be set to 400 Hz. The scale factor can be adjusted according to actual needs, for example, the scale factor of the first linear segment can be set to 50 Hz / m·s, and the scale factor of the second linear segment can be set to 100 Hz / m·s. In this way, the first function can flexibly generate music of different pitches according to the change of wind speed. For example, when the wind speed increases from 2 meters per second to 5 meters per second, the fundamental frequency increases linearly from 200 Hz to 400 Hz; when the wind speed increases from 5 meters per second to 10 meters per second, the fundamental frequency increases linearly from 400 Hz to 900 Hz. The design of this segmented linear function enables the device to produce harmonious and varied music at different wind speeds, enhancing the musical expressiveness and adaptability of the device.

[0051] In some embodiments, the audio synthesis and playback module includes an audio synthesizer, a digital-to-analog converter, an audio power amplifier, and a speaker array; The audio synthesizer is electrically connected to the signal generation unit and is configured to generate a high-resolution digital audio signal based on the digital music control signal using a digital audio synthesis algorithm. The digital-to-analog converter is electrically connected to the audio synthesizer and is configured to convert the high-resolution digital audio signal into an analog audio signal. The audio power amplifier is electrically connected to the digital-to-analog converter and is configured to amplify the analog audio signal to a driving level. The speaker array is electrically connected to the audio power amplifier and is composed of multiple speaker units distributed at different positions of the landscape sculpture body, and is configured to convert the amplified analog audio signal into a sound wave signal and form a stereo sound field in space.

[0052] The audio synthesis and playback module is a key part of the device responsible for converting music control signals into audible music. This module is composed of an audio synthesizer, a digital-to-analog converter, an audio power amplifier, and a speaker array. The audio synthesizer generates a digital audio signal based on the music control signal, the digital-to-analog converter converts the digital signal into an analog signal, the audio power amplifier amplifies the analog signal to a sufficient driving level, and finally the speaker array plays it out. This design enables the device to dynamically generate and play music according to the changes in wind speed and direction, enhancing the interactivity and artisticity of the device.

[0053] Specifically, the audio synthesizer is the core component of the audio synthesis and playback module. Based on the pitch, timbre, and rhythm information in the music control signal, it generates high-resolution digital audio signals using digital audio synthesis algorithms. These algorithms can employ additive synthesis, superimposing multiple harmonic signals to generate rich audio signals. A digital-to-analog converter converts the digital audio signal into an analog audio signal, and an audio power amplifier amplifies the analog audio signal to a sufficient drive level to drive the speaker array. The speaker array consists of multiple speaker units distributed at different locations within the landscape sculpture, used to convert the amplified analog audio signal into sound wave signals and create a stereo sound field in space. This design allows music to propagate evenly throughout the space, enhancing the auditory experience.

[0054] Preferably, when generating digital audio signals, the audio synthesizer can select different harmonic amplitude ratio parameters based on timbre control information to generate audio signals with different timbre characteristics. For example, a flute timbre has fewer higher harmonics, while a string timbre has more. The digital audio synthesis algorithm can achieve different timbre effects by adjusting these harmonic amplitude ratio parameters. A high-precision digital-to-analog converter can be selected to ensure minimal distortion during the conversion from digital to analog signals. The audio power amplifier can be selected based on the speaker impedance and the required maximum volume to ensure that the audio signal is effectively amplified and drives the speakers. The layout of the speaker array can be optimized according to the shape and size of the landscape sculpture to achieve the best stereo effect. For example, the speakers can be distributed in the east, south, west, and north directions of the sculpture, and the driving signal strength of each speaker can be controlled by an amplitude translation algorithm to achieve a spatial sound field rotation effect that changes with wind direction. This design not only enhances the dynamic effect of the music but also allows the device to provide a rich auditory experience under different wind conditions.

[0055] In some embodiments, the digital audio synthesis algorithm is an additive synthesis algorithm, and its synthesis formula is as follows:

[0056] Where y(t) is the amplitude of the audio signal at time t. Let be the amplitude envelope of the i-th harmonic at time t. For the fundamental frequency, Let be the initial phase of the i-th harmonic; The amplitude envelope The fundamental frequency is determined by the timbre control information. The maximum value of the number of harmonics i is determined by the timbre identifier, as determined by the pitch control information.

[0057] The function of an audio synthesizer is to generate high-resolution digital audio signals based on digital music control signals. A digital-to-analog converter (DAC) converts the digital audio signals into analog audio signals, an audio power amplifier amplifies the analog audio signals to a drive level, and a speaker array converts the amplified analog audio signals into sound wave signals, creating a stereo sound field in space. The audio synthesizer uses an additive synthesis algorithm, which generates rich audio signals based on music control information such as pitch, timbre, and rhythm. Parameters such as amplitude envelope, fundamental frequency, and the number of harmonics collectively determine the characteristics of the audio signal. These parameters are determined by corresponding information in the music control signal, thereby enabling the generation of corresponding ambient music based on environmental wind energy parameters.

[0058] Specifically, the audio synthesizer determines the fundamental frequency based on the pitch control information in the digital music control signal. The timbre control information determines the amplitude envelope. The maximum value of the harmonic quantity *i* is determined by the timbre identifier. Pitch control information reflects the highness or lowness of the music; the fundamental frequency is the basic frequency of the audio signal, determining its pitch. Amplitude envelope. This describes the variation of the amplitude of each harmonic in the audio signal over time. It is determined by timbre control information, and different timbres have different amplitude envelope characteristics. Timbre identifiers are used to identify different timbres. Each timbre corresponds to a specific set of harmonic amplitude ratio parameters. These parameters are stored in the non-volatile memory of the control and processing module. The number of harmonics and their amplitude ratios in the audio signal can be determined using the timbre identifier, thereby synthesizing an audio signal with a specific timbre. For example, when the timbre identifier corresponds to a flute timbre, the audio synthesizer will generate a corresponding audio signal based on the harmonic amplitude ratio parameters of the flute timbre, giving the played music the timbre characteristics of a flute.

[0059] Preferably, the digital audio synthesis algorithm employs an additive synthesis algorithm, and its synthesis formula is as follows: .in, The amplitude of the audio signal at time t is the instantaneous value of the audio signal at time t, reflecting the change in the strength of the audio signal. This represents the amplitude envelope of the i-th harmonic at time t. The amplitude envelope determines the variation of the amplitude of each harmonic in the audio signal over time. Different timbres have different amplitude envelope characteristics. The specific form of the amplitude envelope can be determined through timbre control information. The fundamental frequency (FFM) is the basic frequency of an audio signal. It is determined by pitch control information and determines the pitch of the audio signal. Different pitches correspond to different FFM values. This represents the initial phase of the i-th harmonic. The initial phase determines the starting position of each harmonic in the audio signal. It is related to the phase characteristics of the audio signal. Different timbres and music styles require different initial phase settings.

[0060] In practical applications, audio synthesizers generate audio signals based on these parameters and algorithms. By adjusting parameters such as amplitude envelope, fundamental frequency, and initial phase, audio signals with different timbres, pitches, and rhythms can be synthesized, thereby generating corresponding ambient music based on environmental wind energy parameters.

[0061] In some embodiments, the data processing unit further includes an environmental parameter fusion subunit, which is used to fuse the environmental wind speed value and the environmental wind direction value with real-time time parameters. The real-time time parameters include the current hour value H and the current month value M; The music generation parameters also include amplitude modulation depth D, and the mapping relationship between amplitude modulation depth D and the current hour value H is determined by a third function D=H(H), where H(H) is a sine function with a period of 24 hours.

[0062] Specifically, the environmental parameter fusion subunit is a component of the data processing unit. Its function is to combine the collected environmental wind speed and direction values ​​with real-time time parameters to generate richer music generation parameters. The current hour value H in the real-time time parameters refers to the specific hour of the day, ranging from 0 to 23, used to represent a specific time of day; the current month value M refers to the specific month of the year, ranging from 1 to 12, used to represent a specific month of the year.

[0063] The amplitude modulation depth D is a parameter used to control the degree of change in musical amplitude, and it can be adjusted according to the current hour value H. The third function is a sine function with a 24-hour period, which means that the amplitude modulation depth D will exhibit periodic changes throughout the day, with the specific pattern of change determined by the properties of the sine function. For example, at a specific point in time during the day, the amplitude modulation depth D will reach its maximum value, while at another point in time it will reach its minimum value, thus achieving dynamic changes in musical amplitude.

[0064] Preferably, when integrating environmental parameters, the data processing unit calculates the specific value of the amplitude modulation depth D based on the current hour value H. The specific steps are as follows: First, determine the current hour value H, and then calculate the corresponding amplitude modulation depth D based on the sinusoidal characteristics of the third function. The period of the sinusoidal function is 24 hours, meaning that the amplitude modulation depth D completes a full cycle every 24 hours. For example, if the amplitude modulation depth D reaches its maximum value at 12 noon (H=12), and its minimum value at midnight (H=0), the device can dynamically adjust the amplitude modulation depth of the music according to different times of day, allowing the music to have different characteristics during the day and night, enhancing the integration of the music with the environment. In practical applications, the parameters of the sinusoidal function, such as amplitude and frequency, can be adjusted according to specific needs to achieve different musical effects.

[0065] The third function D=H(H) is shown in the following equation; D= ; Where D is the amplitude modulation depth. To preset the maximum modulation depth, The preset minimum modulation depth is H, where H is the current hour value.

[0066] In some embodiments, an ambient light sensing module and a dynamic lighting module are also included; The ambient light sensing module is electrically connected to the control and processing module and is used to collect ambient light intensity values ​​and output light intensity signals. The dynamic lighting module is electrically connected to the control and processing module and includes multiple RGB LED light groups and a lighting controller; The control and processing module is also used to generate a lighting control signal based on the ambient light intensity value and the ambient wind energy parameters. The lighting controller drives the RGB LED light group to produce dynamic lighting effects synchronized with the ambient music based on the lighting control signal.

[0067] An ambient light sensor module is a sensor used to measure the light intensity of the surrounding environment and convert the measurement results into an electrical signal output. Light intensity values ​​are typically measured in lux (lux), representing the luminous flux per unit area. The dynamic lighting module consists of multiple RGB LED light groups and a lighting controller. An RGB LED light group is a combination of light-emitting diodes that emit red, green, and blue light; by adjusting the brightness of these three colors, various colors of light can be synthesized. The lighting controller is an electronic device used to control parameters such as the brightness, color, and flashing frequency of the RGB LED light groups. The control and processing module generates a lighting control signal based on the ambient light intensity value and environmental wind parameters, such as wind speed and direction. This signal contains instructions on how to adjust the RGB LED light groups, such as color changes, brightness adjustments, and flashing modes. In this way, the device can dynamically adjust the lighting effects according to changes in ambient light and wind parameters, synchronizing them with ambient music and enhancing the visual and auditory experience of the device.

[0068] Preferably, the ambient light sensor module can be installed on top of the landscape sculpture installation or in another location that can receive sufficient natural light to accurately measure the ambient light intensity. The RGB LED light groups in the dynamic lighting module can be distributed at different locations within the installation, according to the shape and design of the landscape sculpture, to achieve the best visual effect. The lighting controller can dynamically adjust the color and brightness of the RGB LED light groups based on the ambient light intensity and ambient wind parameters, according to a preset algorithm or model. For example, when the ambient light intensity is low, the lighting controller can increase the brightness of the LED light groups to provide sufficient illumination; when the wind speed is high, the lighting controller can increase the flashing frequency of the LED light groups to enhance the visual effect.

[0069] Furthermore, the lighting controller can adjust the flashing mode of the RGB LED lights according to the rhythm and tone of the ambient music, synchronizing them with the music. For example, when the music tempo speeds up, the flashing frequency of the LED lights can also increase accordingly, achieving perfect synchronization between the light and the music. In this way, the device can dynamically adjust the lighting effects according to environmental conditions and music rhythm, enhancing the visual and auditory experience of the device.

[0070] In some embodiments, the dynamic lighting effects include color gradation, brightness pulsation, and spatial scanning; The hue value of the color gradient is positively correlated with the ambient wind speed value; The frequency of the brightness pulses is synchronized with the rhythm of the ambient music; The direction of the spatial scan is associated with the environmental wind direction value.

[0071] With this design, the device can dynamically adjust the lighting effects according to changes in ambient wind speed, wind direction, and music rhythm, matching them with the music and ambient wind energy parameters, thus enhancing the visual and auditory experience of the device.

[0072] Specifically, color gradation in dynamic lighting effects refers to the smooth transition of light color between different hues. Hue value is the position of a color on the color wheel, usually expressed as an angle or numerical value, such as from red 0° to yellow 60° and then to green 120°. The hue value of a color gradation is positively correlated with the ambient wind speed, meaning that as wind speed increases, the light color will smoothly transition from one hue to another, such as from blue to red. Brightness pulsation refers to the effect of periodically changing light brightness over time, with its frequency synchronized with the rhythm of ambient music; that is, the flashing frequency of the light matches the beat of the music, enhancing the sense of synchronization between vision and hearing. Spatial scanning refers to the movement or scanning effect of light in space, with its direction related to the ambient wind direction. For example, when the wind blows from north to south, the light can move along a north-to-south direction to simulate the direction of wind flow.

[0073] Preferably, color gradation can be achieved using a preset color mapping table, which assigns hue values ​​to different color ranges based on wind speed. For example, when the wind speed is 0-5 m / s, the hue value changes from 0° red to 60° yellow; when the wind speed is 5-10 m / s, the hue value changes from 60° yellow to 120° green. The frequency of brightness pulsations can be determined using a music beat detection algorithm, which analyzes the rhythmic components in the audio signal and converts them into the frequency of light flashing. For example, if the music beat is 120 beats per minute, the light flashing frequency will be set to 2 times per second. The direction of spatial scanning can be controlled using data from a wind direction sensor, which provides real-time wind direction data. The light controller adjusts the direction of light movement based on this data. For example, if the wind direction sensor detects that the wind is blowing from the northeast, the light can perform a spatial scan in the northeast direction, thereby enhancing the interactivity and visual effect of the device with the environment.

[0074] In some embodiments, a user interaction module is further included, which is electrically connected to the control and processing module; The user interaction module includes a touch sensing area and a wireless communication unit; The touch sensing area is set on the surface of the landscape sculpture body to detect the user's touch operation and generate touch signal; The wireless communication unit is used to establish a communication connection with the mobile terminal and receive user configuration instructions. The control and processing module adjusts the calculation rules for the music generation parameters based on the touch signal or the user configuration command.

[0075] The touch sensing area typically consists of capacitive or resistive touch sensors. These sensors detect the user's finger movements and convert them into electrical signals. These signals are transmitted to the control and processing module to trigger preset functions, such as playing music or changing lighting effects. The wireless communication unit can use Bluetooth, Wi-Fi, or other wireless communication technologies to connect to the mobile terminal. The application on the mobile terminal provides a user interface through which the user can send various configuration commands. These commands include music style selection commands to choose different music styles, such as classical, jazz, or electronic music; volume adjustment commands to adjust the music volume; and lighting mode selection commands to choose different lighting effects, such as color gradients, brightness pulses, or spatial scanning. After receiving these commands, the control and processing module adjusts the calculation rules of the music generation parameters, such as changing parameters like pitch, timbre, rhythm, or amplitude modulation depth, to generate music and lighting effects that match the user's selections.

[0076] The touch-sensitive area can be designed with multiple distinct zones, each corresponding to a different function. For example, one zone might be used to adjust volume, another to switch music styles, and yet another to control lighting effects. Users can control these functions through simple touch operations such as tapping, swiping, or long-pressing. The wireless communication unit can employ Bluetooth Low Energy technology to extend the device's battery life and ensure a stable connection. An application on the mobile terminal provides an intuitive user interface through which users can send configuration commands. For instance, users can adjust the volume by sliding the volume bar on the screen and select a music style by clicking different music style icons. Upon receiving these commands, the control and processing module updates its internal music generation parameter calculation rules. For example, if the user selects a classical music style, the control and processing module will adjust parameters such as pitch, timbre, and rhythm to generate an audio signal that conforms to the classical music style. Simultaneously, the control and processing module can automatically adjust default settings based on the user's interaction history and preferences, further enhancing the user experience.

[0077] In some embodiments, the user configuration instructions include music style selection instructions, volume adjustment instructions, and lighting mode selection instructions; The control and processing module selects the target synthesis algorithm from a variety of preset synthesis algorithms according to the music style selection instruction; Adjust the maximum amplitude of the digital audio signal according to the volume adjustment command; Adjust the display mode of the dynamic lighting effect according to the lighting mode selection command.

[0078] The music style selection command allows users to choose from a variety of preset music styles, such as classical, jazz, and electronic. The volume adjustment command adjusts the music playback volume, typically controlled by an adjustable parameter that regulates the output intensity of the audio synthesis and playback module. The lighting mode selection command allows users to choose different lighting effects, such as color gradients, brightness pulses, or spatial scanning. Upon receiving these commands, the control and processing module adjusts the calculation rules for the music generation parameters. For example, the music style selection command triggers the control and processing module to select the algorithm corresponding to the user-selected music style from a variety of preset synthesis algorithms. The volume adjustment command adjusts the maximum amplitude of the digital audio signal, thereby changing the music playback volume. The lighting mode selection command adjusts the display mode of the dynamic lighting module, changing the color, brightness, and movement of the lights.

[0079] Preferably, users can send configuration commands through a specific area of ​​the touch-sensing zone or the interface of a mobile terminal application. For example, the touch-sensing zone can be designed as a touchscreen, allowing users to select music styles and adjust volume by swiping or tapping. A mobile terminal application can provide a more intuitive interface, allowing users to send commands by tapping different icons or sliders. Upon receiving these commands, the control and processing module performs corresponding processing. For example, for a music style selection command, the control and processing module selects the appropriate algorithm from a stored synthesis algorithm library and updates the calculation rules for music generation parameters. For a volume adjustment command, the control and processing module adjusts the output parameters of the audio synthesizer, changing the maximum amplitude of the digital audio signal. For a lighting mode selection command, the control and processing module adjusts the parameters of the lighting controller, changing the color, brightness, and flashing mode of the RGB LED lights. These adjustments can be implemented using preset algorithms and parameter mapping tables, ensuring that user commands are accurately reflected in the device's output.

[0080] In some embodiments, the eight timbre features stored in the wind direction-timbre mapping table correspond to flute timbre, string timbre, bell timbre, human voice timbre, percussion timbre, electronic timbre, natural timbre, and mixed timbre, respectively. Each of the aforementioned timbre features is defined by a set of harmonic amplitude ratio parameters, which are stored in the non-volatile memory of the control and processing module.

[0081] Specifically, the wind direction-timbre mapping table is a data structure used to map environmental wind direction values ​​to specific timbre characteristics. The eight main wind directions typically refer to north, northeast, east, southeast, south, southwest, west, and northwest. Each wind direction corresponds to a unique timbre characteristic, including flute timbre, string timbre, bell timbre, vocal timbre, percussion timbre, electronic timbre, natural timbre, and mixed timbre. Each timbre characteristic is defined by a set of harmonic amplitude ratio parameters, which determine the amplitude ratio of each harmonic in the audio signal. For example, the flute timbre has a high fundamental harmonic amplitude ratio, while the bell timbre has a low fundamental harmonic amplitude ratio but a high higher harmonic amplitude ratio. These parameters are stored in the non-volatile memory of the control and processing module, ensuring that the device can quickly load these parameters upon startup and generate the corresponding timbre based on the wind direction.

[0082] A wind direction-timbre mapping table can be constructed and used through the following steps. First, define eight main wind directions and their corresponding timbre characteristics. For example, north wind corresponds to a flute timbre, east wind corresponds to a string timbre, etc. Then, define a set of harmonic amplitude ratio parameters for each timbre characteristic. These parameters can be obtained through audio analysis software or experimental measurement to ensure that each timbre has unique characteristics. Next, store these parameters in the non-volatile memory of the control and processing module. When the device is running, wind speed and direction sensors collect ambient wind direction values ​​in real time and send these values ​​to the control and processing module. The control and processing module looks up the corresponding timbre characteristic according to the wind direction-timbre mapping table and sends the corresponding harmonic amplitude ratio parameters to the audio synthesizer. The audio synthesizer generates an audio signal based on these parameters, thereby realizing the function of dynamically adjusting the timbre according to the ambient wind direction. For example, when the wind direction sensor detects that the wind is blowing from the north, the control and processing module finds the parameters corresponding to the flute timbre from the mapping table and sends these parameters to the audio synthesizer, which then generates an audio signal with flute timbre characteristics.

[0083] In some embodiments, the loudspeaker array includes four full-range loudspeaker units, respectively arranged in the east, south, west, and north directions of the landscape sculpture body; The audio synthesizer controls the driving signal intensity of the four full-range speaker units through an amplitude shifting algorithm, thereby generating a spatial sound field rotation effect that changes with the ambient wind direction.

[0084] It should be noted that the speaker array is a crucial component in the landscape sculpture installation for playing audio signals. This particular speaker array comprises four full-range speaker units, positioned in the east, south, west, and north directions of the sculpture. The audio synthesizer uses an amplitude-shifting algorithm to control the drive signal intensity of these four speaker units, thereby generating a spatial sound field rotation effect that changes with the ambient wind direction. This design allows the installation to dynamically adjust the spatial distribution of the audio signal according to changes in the ambient wind direction, enhancing the installation's environmental interactivity and the spatial feel of the music.

[0085] Specifically, the speaker array consists of four full-range speaker units capable of playing audio signals across the entire frequency range, ensuring the integrity and richness of the audio signal. These four speaker units are installed in the east, south, west, and north directions of the landscape sculpture, forming a surround sound field. The audio synthesizer controls the drive signal strength of each speaker unit through an amplitude shift algorithm. Amplitude shift is an audio processing technique that adjusts the amplitude of the audio signal to change its propagation direction, thereby achieving dynamic changes in the spatial sound field. The ambient wind direction is collected in real-time by wind speed and direction sensors, indicating the direction of the wind. Based on the wind direction, the audio synthesizer can adjust the drive signal strength of each speaker unit, causing the audio signal intensity to change in different directions, thus producing the effect of a rotating spatial sound field.

[0086] In some embodiments, the landscape sculpture body is made of weathering steel and has a streamlined, spiraling shape. The spiral-shaped streamlined structure has an internal equipment mounting cavity and an external acoustic perforation. The wind energy harvesting and conversion module is located at the top of the spiraling streamlined structure, and the speaker array of the audio synthesis and playback module is located behind the acoustic aperture.

[0087] Specifically, the selection of materials and the structural design of the landscape sculpture itself were carefully considered. Weathering steel is a high-strength alloy steel with excellent corrosion resistance and weather resistance, enabling it to maintain stable performance over long periods in various harsh natural environments. The spiraling, streamlined structure is not only visually appealing but also effectively guides wind flow to the wind energy harvesting and conversion module, thereby improving wind energy harvesting efficiency. This structural design is inspired by spiral shapes in nature, such as seashells or vortices, which are often associated with efficient energy transfer. The equipment mounting cavity is a space inside the sculpture used to install and protect various electronic devices and modules, such as the wind energy harvesting and conversion module, control and processing modules, etc. Acoustic perforations are small holes on the sculpture's external surface. These perforations are designed to facilitate the propagation of audio signals, allowing music to diffuse evenly into the surrounding environment, enhancing the sound quality and auditory experience.

[0088] The above description is merely an explanation of some preferred embodiments of the present invention and the technical principles employed. Those skilled in the art should understand that the scope of the invention as described in the embodiments of the present invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of the present invention.

Claims

1. A landscape sculpture installation that utilizes wind energy to generate ambient music, characterized in that, It includes a wind energy harvesting and conversion module, a control and processing module, an audio synthesis and playback module, and the landscape sculpture itself; The wind energy acquisition and conversion module is used to acquire ambient wind energy and convert it into electrical energy; The control and processing module is electrically connected to the wind energy acquisition and conversion module, and is used to manage the electrical energy and generate music control signals based on environmental wind energy parameters; The audio synthesis and playback module is electrically connected to the control and processing module and is used to receive the music control signal and synthesize and play the corresponding ambient music. The landscape sculpture body is used to support and accommodate the wind energy collection and conversion module, the control and processing module, and the audio synthesis and playback module.

2. The landscape sculpture device as described in claim 1, characterized in that, The wind energy acquisition and conversion module includes a micro wind turbine, a wind speed and direction sensor, and an energy storage unit. The micro wind turbine is used to convert wind energy into unstable raw DC power. The wind speed and direction sensor is used to collect ambient wind speed and direction values ​​in real time and output a digital signal containing wind speed and direction data. The energy storage unit is electrically connected to the micro wind turbine and is used to store the raw DC energy and output a stable DC working voltage after voltage stabilization.

3. The landscape sculpture device as described in claim 2, characterized in that, The control and processing module includes a power management unit, a data processing unit, and a signal generation unit; The power management unit is electrically connected to the energy storage unit and is used to convert the stable DC operating voltage into multiple operating voltages required by the control and processing module and the audio synthesis and playback module, and to provide overvoltage protection and undervoltage lockout functions. The data processing unit is electrically connected to the wind speed and direction sensor, and is used to receive the digital signal containing wind speed data and wind direction data, perform moving average filtering on the wind speed data to eliminate sudden interference, and calculate music generation parameters based on the filtered wind speed data and wind direction data. The signal generation unit is electrically connected to the data processing unit and is used to generate a digital music control signal containing pitch control information, timbre control information and rhythm control information based on the music generation parameters.

4. The landscape sculpture device as described in claim 3, characterized in that, The data processing unit calculates music generation parameters including the fundamental frequency value f, the rhythm interval value T, and the timbre identifier. ; The mapping relationship between the fundamental frequency value f and the ambient wind speed value v is determined by the first function f=F(v), where F(v) is the wind speed value within the preset wind speed range. A monotonically increasing function that is continuously differentiable within the function; The mapping relationship between the rhythm interval value T and the ambient wind speed value v is determined by the second function T = G(v), where G(v) is a monotonically decreasing function that is continuously differentiable within the preset wind speed range. The timbre identifier The mapping relationship with the environmental wind direction value θ is determined by querying a preset wind direction-timbre mapping table, which stores eight different timbre characteristics corresponding to eight main wind directions.

5. The landscape sculpture device as described in claim 4, characterized in that, The specific expression of the first function F(v) is a piecewise linear function: When ≤ v < v1, ; When v1≤v≤ At that time, f = f1 + k2*(v - v1); in, To preset the start-up fan speed, v1 is the preset maximum operating wind speed, and v1 is the preset first wind speed threshold. <v1< , The preset minimum frequency is f1, which is the intermediate frequency corresponding to v1. k1 and k2 are different positive real proportionality coefficients, and k2>k1.

6. The landscape sculpture device as described in claim 3, characterized in that, The audio synthesis and playback module includes an audio synthesizer, a digital-to-analog converter, an audio power amplifier, and a speaker array; The audio synthesizer is electrically connected to the signal generation unit and is used to generate a high-resolution digital audio signal according to the digital music control signal through a digital audio synthesis algorithm. The digital-to-analog converter is electrically connected to the audio synthesizer and is used to convert the high-resolution digital audio signal into an analog audio signal; The audio power amplifier is electrically connected to the digital-to-analog converter and is used to amplify the analog audio signal to a drive level; The loudspeaker array, electrically connected to the audio power amplifier, consists of multiple loudspeaker units distributed at different locations on the landscape sculpture body, and is used to convert the amplified analog audio signal into a sound wave signal and form a stereo sound field in space.

7. The landscape sculpture device as described in claim 6, characterized in that, The digital audio synthesis algorithm is an additive synthesis algorithm, and its synthesis formula is as follows: Where y(t) is the amplitude of the audio signal at time t. Let be the amplitude envelope of the i-th harmonic at time t. For the fundamental frequency, Let be the initial phase of the i-th harmonic; The amplitude envelope The fundamental frequency is determined by the timbre control information. The maximum value of the number of harmonics i is determined by the timbre identifier, as determined by the pitch control information.

8. The landscape sculpture device as described in claim 3, characterized in that, The data processing unit further includes an environmental parameter fusion subunit, which is used to fuse the environmental wind speed value and environmental wind direction value with real-time time parameters. The real-time time parameters include the current hour value H and the current month value M; The music generation parameters also include amplitude modulation depth D, and the mapping relationship between amplitude modulation depth D and the current hour value H is determined by a third function D=H(H), where H(H) is a sine function with a period of 24 hours.

9. The landscape sculpture device as described in claim 1, characterized in that, It also includes an ambient light sensing module and a dynamic lighting module; The ambient light sensing module is electrically connected to the control and processing module and is used to collect ambient light intensity values ​​and output light intensity signals. The dynamic lighting module is electrically connected to the control and processing module and includes multiple RGB LED light groups and a lighting controller; The control and processing module is also used to generate a lighting control signal based on the ambient light intensity value and the ambient wind energy parameters. The lighting controller drives the RGB LED light group to produce dynamic lighting effects synchronized with the ambient music based on the lighting control signal.

10. The landscape sculpture device as described in claim 9, characterized in that, The dynamic lighting effects include color gradients, brightness pulsations, and spatial scanning. The hue value of the color gradient is positively correlated with the ambient wind speed value; The frequency of the brightness pulses is synchronized with the rhythm of the ambient music; The direction of the spatial scan is associated with the environmental wind direction value.

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