A control method for a plastic film with a function of promoting growth by sound waves

Abstract

The present invention belongs to the technical field of acoustic wave growth promotion, and discloses a control method for a plastic film with an acoustic wave growth promotion function. The plastic film is linearly connected to a plastic film controller through a plastic film power line, the plastic film controller is linearly connected to a power supply control, and the power supply controller is linearly connected to a storage battery and a solar panel. The plastic film is composed of multiple plastic film growth promotion units, and each plastic film growth promotion unit is provided with a plastic film connector and a power amplifier. The power amplifier and the plastic film connector are linearly connected to the plastic film power line and the plastic film signal line. The plastic film growth promotion unit is further provided with a transducer cable, a transducer array and a plastic film growth promotion array. The transducer array is provided with transducer array elements. The plastic film growth promotion array has two layers of transparent or opaque flexible films on the upper and lower sides, which are closely attached to the upper and lower surfaces of the plastic film growth promotion array. It can effectively solve the problems of small action range, low efficiency and difficulty in large-scale application of traditional acoustic wave growth promotion equipment, and is of great significance for improving the plant growth and yield increase in industries such as green agriculture and traditional Chinese medicine in China.

Description

Technical Field

[0001] The present invention belongs to the technical field of sound wave boosting, and particularly relates to a control method for a plastic film with a sound wave boosting function. Background Art

[0002] At present, the development of modern physical agriculture is an important way to achieve the sustainable development of economic society and environmental ecology. The characteristics of modern physical ecological agriculture are the combination and application of basic physical elements such as electricity, magnetism, sound, light, and heat, as well as disciplines such as biology and bionics science in agricultural production. As a kind of mechanical wave, sound waves with a certain rhythm can accelerate the reproduction and metabolism of plant cells, thus promoting the growth and development of crops. Therefore, sound wave boosting provides a new means for the development of modern physical agriculture and has broad prospects for popularization and application.

[0003] The basic principle of the boosting effect of sound waves on plants is as follows: The sound wave frequency band suitable for plant growth is obtained through experimental tests; a sound wave generator is used to generate sound waves in this frequency band and make them act on the plant; for plant roots, sound waves can promote the secretion of a large amount of substances such as soluble sugars and soluble proteins, thereby greatly enhancing the energy and substance levels required for plant growth, increasing the vitality of plant roots, and significantly improving the abilities of plant roots to absorb, synthesize, and transform nutrients, thereby playing a role in promoting plant growth; during the growth process of plants, the speed of cell division and growth in their bodies directly affects the overall growth level of the plants. Sound waves will generate a stress field in the plants, greatly reducing the constraint of the cell wall on cell division and generation, greatly accelerating the growth and division speed of cells, and thus greatly increasing the content of indole acetic acid in the plant body. Abscisic acid that inhibits plant growth decreases. Under the promotion of indole acetic acid, the plant body will accelerate the secretion of ethylene, and thus the plant growth becomes faster.

[0004] Current sound wave boosting devices are mainly derived from audio systems, and their forms only differ in the sound wave content they play compared with traditional audio systems. This has led to the following problems: Since sound waves radiate energy in an approximately spherical form when propagating outward, the farther away from the sound source, the more dispersed the sound wave energy, and the smaller the sound wave energy acting on the plants at that location, resulting in a significant reduction in the boosting efficiency of sound waves on plants; the placement methods of sound wave boosting devices derived from traditional audio systems are single. Generally, they are stably placed in the center of the planting area or greenhouse. The action radius of a single sound wave booster is very limited, generally between 50 and 60 meters. The characteristics of low efficiency and single placement method of traditional sound wave boosting devices limit their large-scale popularization and application.

[0005] Through the above analysis, the problems and defects existing in the prior art are as follows:

[0006] (1): The traditional acoustic wave growth promotion device is derived from audio equipment. Generally, the effective range of one device can only reach 50 - 60m. To achieve large-scale application, many devices have to work simultaneously, which is cumbersome and not suitable for large-scale application and promotion.

[0007] (2): The traditional acoustic wave growth promotion device cannot be close to each plant, and the energy attenuation of sound waves is inversely proportional to the square of the distance. The sound wave energy received by plants at a relatively far distance has been greatly attenuated, which undoubtedly leads to the low efficiency of the traditional acoustic wave growth promotion device. Summary of the Invention

[0008] In view of the problems existing in the prior art, the present invention provides a film mulch centralized control method with an acoustic wave growth promotion function.

[0009] The present invention is implemented as follows. A film mulch with an acoustic wave growth promotion function includes:

[0010] Film mulch;

[0011] The film mulch is linearly connected to the film mulch controller through the film mulch power line. The film mulch controller is linearly connected to the power control. The power controller is linearly connected to the battery and the solar panel. The film mulch is composed of multiple film mulch growth promotion units. Each film mulch growth promotion unit is provided with a film mulch connector and a power amplifier. The power amplifier and the film mulch connector are linearly connected to the film mulch power line and the film mulch signal line.

[0012] Furthermore, the film mulch growth promotion unit is further provided with a transducer cable, a transducer array, and a film mulch growth promotion array. The transducer array is provided with transducer array elements. There are two layers of transparent or opaque flexible films on the upper and lower surfaces of the film mulch growth promotion array, which are closely attached to the upper and lower surfaces of the film mulch growth promotion array to form a rollable and deformable film mulch.

[0013] Furthermore, the film mulch controller is composed of a signal processor, a DA converter, a memory, a wireless transmission module, a watchdog, a reset circuit, and a power switch circuit. The signal processor is composed of one or more combinations of a single-chip microcomputer, a digital signal processor (DSP), a field programmable gate array (FPGA), an embedded system (ARM), and an oscillation circuit, generates a digital signal in the acoustic wave frequency band, and controls the on / off of the power switch circuit to realize the on / off of the power supply to the film mulch. The digital signal in the acoustic wave frequency band generated by the signal processor is converted into an analog electrical signal by the DA converter and connected to the power amplifier in the film mulch growth promotion unit through the film mulch connector. The memory includes a non-volatile memory and a memory. The non-volatile memory is mainly used for long-term storage of the acoustic wave data and programs to be played, and the memory is used for storing the running programs and data. The wireless transmission module is mainly composed of wireless transmission modules such as Bluetooth and Wifi, and mainly realizes the wireless connection and data transmission between the user's mobile phone, computer, etc. and the film mulch controller. The watchdog is used to prevent the program from running away abnormally. The reset circuit is used for the reset of the film mulch controller.

[0014] Furthermore, the transducer array is composed of sheet-shaped transducer elements. Generally, the transducer elements are made of piezoelectric ceramics, PVDF films and other materials into a sheet-shaped structure, and then neatly arranged into a square or circular array, and connected to the power amplifier through series connection, parallel connection or a combination thereof; the transducer elements can be the same transducers, or a combination of transducers with different frequency bands. When using transducers with multiple frequency bands, in a way of interspersed and evenly distributed, the transducer elements of the same frequency band are evenly distributed in the transducer array, so as to achieve wide-band coverage of the transducer array.

[0015] Furthermore, the plastic film can be divided into two categories: fully covered and penetrable; the fully covered plastic film covers the ground surface, and there are no plant holes for plants to pass through after growing out. The penetrable plastic film has reserved plant holes for plants to pass through, and the plants can grow freely through the plant holes.

[0016] Furthermore, for the plastic film with the function of promoting plant growth by sound waves of the present invention, its control method is as follows:

[0017] First step, the user first covers the plastic film on the surface of the land to be promoted, or it can also be buried in the surface soil; the plastic film connector in any plastic film promoting unit of the plastic film is connected to the plastic film controller through the plastic film power line and the plastic film signal line;

[0018] Second step, the plastic film controller is connected to the solar panel, the power controller and the storage battery through the power line; turn on the switch in the plastic film controller to make the plastic film with the function of promoting plant growth by sound waves work.

[0019] Third step, the signal processor in the plastic film controller first initializes, sets the system operating environment and working parameters;

[0020] Fourth step, the signal processor in the plastic film controller detects whether there is a user input request in the wireless transmission module. If there is, it waits for the user input and adjusts the system operating parameters and task planning according to the parameters set by the user. If not, it runs with the system default parameters and task planning;

[0021] Fifth step, the signal processor in the plastic film controller executes the promotion task according to the task planning. When it is necessary to generate the promotion sound wave, it outputs the digital sequence of the promotion sound wave required by the current task to the DA converter, and converts it into an analog electrical signal through the DA converter. The signal is output to the power amplifier through the plastic film signal line and the plastic film connector for amplification, and then drives the transducer array to generate the promotion sound wave;

[0022] Sixth step, the signal processor in the plastic film controller detects whether the promotion task is completed. If not, it continues to execute the promotion task. If completed, it shuts down the system.

[0023] Combined with the above technical solutions and the technical problems to be solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:

[0024] First, in view of the technical problems existing in the above-mentioned prior art and the difficulty of solving such problems, closely combined with the technical solutions to be protected by the present invention, as well as the results and data during the R & D process, etc., analyze in detail and profoundly how the technical solutions of the present invention solve the technical problems and the creative technical effects brought about after solving the problems. The specific description is as follows:

[0025] In the embodiment of the present invention, the transducer array is made on the plastic film, which can be closest to the plants, especially their roots, to maximize the acoustic energy acting on the plants and their roots, greatly improving the growth-promoting effect of the sound waves and reducing the energy consumption; the present invention uses solar power supply, and the installation and use methods are flexible and convenient, enabling the present invention to be applied to the plant growth promotion of any land and overcoming the problem of the limited action range of traditional acoustic growth-promoting devices; through the design of the growth-promoting array on the plastic film, it can be cut according to the usage area, is convenient to use, and can act uniformly on all plants for acoustic growth promotion over a large area, being suitable for large-scale application.

[0026] Second, regarding the technical solution as a whole or from the perspective of the product, the technical effects and advantages of the technical solution to be protected by the present invention are specifically described as follows:

[0027] The embodiment of the present invention has a simple structure and obvious effects. By solving the inherent problems of traditional acoustic growth-promoting devices relying on the form of the audio system, the uneven action of sound waves on plants, low growth-promoting efficiency, small effective growth-promoting area, and inadaptability to large-scale application, a new acoustic growth-promoting technology with high growth-promoting efficiency, large action range, flexible and convenient use, and applicable to uniform growth promotion of plants over a large area is developed. Even calculated at a growth and yield increase effect of 10 - 20% (there is data showing that the growth and yield increase effect of some plants can reach more than 60%), it will bring huge economic and social benefits. Since the present invention solves the practical problems of large-scale application, great commercial value will be generated therefrom.

[0028] Third, as the creative auxiliary evidence of the claims of the present invention, it is also reflected in the following several important aspects:

[0029] Does the technical solution of the present invention solve the technical problems that people have been eager to solve but have never succeeded in? With the gradual strengthening of the awareness of green and environmental protection, the green and environmental protection growth technology that can achieve large-scale plant growth promotion and yield increase has always been a technical problem that the green agriculture, traditional Chinese medicine and other industries have long been eager to solve. The present invention discloses a plastic film with a function of promoting plant growth by sound waves, which can effectively solve the problems of small action range, low efficiency and difficulty in large-scale application of traditional plant growth promotion equipment by sound waves, and can achieve a qualitative leap in large-scale green plant growth promotion, which is of great significance for improving the plant growth and yield increase in the green agriculture, traditional Chinese medicine and other industries in China. Brief Description of the Drawings

[0030] Figure 1 is a schematic structural diagram of a plastic film with a function of promoting plant growth by sound waves provided by an embodiment of the present invention;

[0031] Figure 2 is a schematic structural diagram of a penetrable plastic film provided by an embodiment of the present invention;

[0032] Figure 3 is a schematic structural diagram of a plastic film provided by an embodiment of the present invention;

[0033] Figure 4 is a system block diagram of a film controller provided by an embodiment of the present invention;

[0034] In the figures: 1, solar panel; 2, power controller; 3, storage battery; 4, plastic film controller; 5, plastic film power line; 6, plastic film signal line; 7, plastic film; 71, plastic film growth promotion unit; 711, plastic film connector; 712, power amplifier; 713, transducer cable; 714, transducer array element; 715, plant hole; 72, in-film signal line; 73, in-film power line; 74, upper flexible layer of the plastic film; 75, lower flexible layer of the plastic film. Detailed Embodiments

[0035] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] This part is an explanatory embodiment that expands and explains the technical solutions of the claims in order to enable those skilled in the art to fully understand how the present invention is specifically implemented.

[0037] Such as Figures 1-4As shown in the figure, the plastic film with the function of promoting growth by sound waves provided by the embodiment of the present invention includes: a solar panel 1, a power controller 2, a storage battery 3, a plastic film controller 4, a plastic film power line 5, a plastic film signal line 6, a plastic film 7, a plastic film growth promotion unit 71, a plastic film connector 711, a power amplifier 712, a transducer cable 713, a transducer element 714, a plant hole 715, an in-film signal line 72, an in-film power line 73, an upper flexible layer 74 of the plastic film, and a lower flexible layer 75 of the plastic film.

[0038] The solar panel 1 is used to convert solar energy into electrical energy.

[0039] The power controller 2 is connected to the solar panel 1 and the storage battery 3, and is used to control the charging of the electrical energy converted by the solar panel 1 into the storage battery 3, and to control the solar panel 1 and the storage battery 3 to supply power to the plastic film 7.

[0040] The storage battery 3 is connected to the power controller 2. Under the control of the battery controller, it stores the electrical energy converted by the solar panel 1, and when power needs to be supplied to the plastic film 7, it supplies power to the plastic film 7 under the control of the power controller 2.

[0041] The plastic film power line 5 is a cable for the plastic film 7 to access the power supply, and is a connecting line between the plastic film 7 and the power controller 2.

[0042] The plastic film signal line 7 is a cable for the plastic film 7 to access the signal, and is a connecting line between the plastic film 7 and the power controller 2.

[0043] The plastic film controller 4 is connected to the plastic film 7 at the back, controls the power supply of the plastic film 7, and inputs an electrical signal to the plastic film 7, so that after being amplified by the power amplifier 712, it drives the transducer to generate plant growth-promoting sound waves.

[0044] The plastic film 7 is formed by connecting plastic film growth promotion units 71. Each plastic film growth promotion unit 71 is composed of a plastic film connector 711, a power amplifier 712, and a transducer array; the plastic film 7 is connected to the plastic film power line 5 and the plastic film signal line 7 led out by the plastic film controller 4 through the plastic film connector 711, and receives power supply and electrical signals.

[0045] The power amplifier 712 is connected to the plastic film power line 5 and the plastic film signal line 7 led out by the plastic film connector 711, processes and amplifies the received electrical signal, and then drives the transducer array connected behind it to generate plant growth-promoting sound wave signals.

[0046] The plastic film growth promotion units 71 are neatly arranged into a plastic film 7 growth promotion array of any length according to actual needs. There are two layers of transparent or opaque flexible films on its upper and lower sides, which are closely attached to the upper and lower surfaces of the plastic film 7 growth promotion array to form a plastic film 7 that can be curled and deformed.

[0047] The film mulch controller 4 consists of a signal processor, a DA converter, a memory, a wireless transmission module, a watchdog, a reset circuit, a power switch circuit, etc.; the signal processor is composed of one or a combination of a single-chip microcomputer, a digital signal processor (DSP), a field programmable gate array (FPGA), an embedded system (ARM), and an oscillation circuit, which can generate digital signals in the acoustic wave frequency band and control the on / off of the power switch circuit to achieve the on / off of the power supply to the film mulch 7; the digital signals in the acoustic wave frequency band generated by the signal processor are converted into analog electrical signals by the DA converter and connected to the power amplifier 712 in the film mulch boosting unit 71 through the film mulch connector 711; the memory includes a non-volatile memory and a memory. The non-volatile memory is mainly used for long-term storage of acoustic wave data and programs to be played, and the memory is used for storing running programs and data; the wireless transmission module is mainly composed of wireless transmission modules such as Bluetooth and Wifi, and mainly realizes the wireless connection and data transmission between user mobile phones, computers, etc. and the film mulch controller 4; the watchdog is used to prevent the program from running away abnormally; the reset circuit is used for the reset of the film mulch controller 4.

[0048] The transducer array is composed of sheet-shaped transducer elements 714. The transducer elements 714 are generally made of piezoelectric ceramics, PVDF films and other materials into a sheet-shaped structure, and then neatly arranged into a square or circular array, and connected to the power amplifier 712 through series, parallel or a combination thereof; the transducer elements 714 can be the same transducers or a combination of transducers with different frequency bands. When using transducers with multiple frequency bands, the transducer elements 714 of the same frequency band are evenly distributed in the transducer array in an interspersed and uniform distribution manner to achieve wide-band coverage of the transducer array.

[0049] The film mulch 7 can be divided into two categories: fully covered and penetrable; the fully covered film mulch 7 covers the ground surface and has no plant holes 715 for plants to pass through after growing out. The penetrable film mulch 7 has reserved plant holes 715 for plants to pass through, and the plants can grow freely through the plant holes 715.

[0050] The film mulch 7 is integrally in a soft sheet shape and mainly includes a flexible layer 74 on the film, transducer elements 714, and a flexible layer 75 under the film in the cross-section, and the three are bonded through manufacturing means such as a thermal bonding process; the flexible layer 74 on the film and the flexible layer 715 under the film are traditional film mulch production materials, such as polyethylene, polyvinyl chloride, ethylene-vinyl acetate resin (EVA), etc., and can be made of transparent or opaque materials.

[0051] For the film mulch with an acoustic wave boosting function of the present invention, its control method and working principle are as follows:

[0052] First step, the user first covers the plastic film on the surface of the land to be promoted, or it can also be buried in the surface soil; the plastic film connector in any plastic film promotion unit of the plastic film is connected to the plastic film controller through the plastic film power line and the plastic film signal line;

[0053] Second step, the plastic film controller is connected to the solar panel, the power controller and the storage battery through the power line; turn on the switch in the plastic film controller to make the plastic film with the function of promoting growth by sound waves work;

[0054] Third step, the signal processor in the plastic film controller first initializes and sets the system operating environment and working parameters;

[0055] Fourth step, the signal processor in the plastic film controller detects whether there is a user input request in the wireless transmission module. If there is, it waits for the user input and adjusts the system operating parameters and task planning according to the parameters set by the user. If not, it runs with the system default parameters and task planning;

[0056] Fifth step, the signal processor in the plastic film controller executes the promotion task according to the task planning. When it is necessary to generate the promotion sound wave, it outputs the digital sequence of the promotion sound wave required for the current task to the DA converter, and converts it into an analog electrical signal through the DA converter. This signal is output to the power amplifier through the plastic film signal line and the plastic film connector for amplification, and then drives the transducer array to generate the promotion sound wave;

[0057] Sixth step, the signal processor in the plastic film controller detects whether the promotion task is completed. If not, it continues to execute the promotion task. If it is completed, it shuts down the system.

[0058] In the present invention, during operation, the power controller 2 controls the charging of the solar panel to the storage battery 3, and controls the solar panel 1 and the storage battery 3 to supply power to the plastic film. The plastic film controller 4 delivers electrical energy to the plastic film 7 through the plastic film power line 5 to supply the electrical energy required for the operation of the plastic film growth promoting unit 71 in the plastic film 7, and transmits the sound sample analog signal to the plastic film connector 711 in the plastic film growth promoting unit 71 in the plastic film 7 according to the current working mode and parameters through the plastic film signal line 6; the plastic film connector 711 transmits this signal to the power amplifier 712 in the plastic film growth promoting unit 71 through the in-film signal line 72; after the power amplifier 712 amplifies this signal, it drives the transducer array composed of transducer elements 714 to generate ultrasonic waves through the transducer cable 713; since the plastic film is covered on the surface of the soil or buried under the surface layer of the soil, the transducer array will generate an acoustic field that acts on the plants at a very close distance; for plant roots, the sound waves can promote the large secretion of substances such as soluble sugars and soluble proteins, thereby greatly enhancing the energy and material levels required for plant growth, increasing the activity of plant roots, and significantly improving the abilities of plant roots to absorb, synthesize, and transform nutrients, thus playing a role in promoting plant growth; during the growth process of plants, the speed of cell division and growth in their bodies directly affects the overall growth level of the plants. The sound waves will generate a stress field in the plants, greatly reducing the constraint effect of the cell wall on cell division and generation, making the growth and division speed of cells greatly accelerated, and thus greatly increasing the content of indole acetic acid in the plant body, while the abscisic acid that inhibits plant growth decreases. Under the promotion of indole acetic acid, the plant body will accelerate the secretion of ethylene, and thus the plant growth will become faster.

[0059] Since clean energy is adopted and the electrical energy converted by the solar panel during the day is stored by the storage battery, all-weather sound wave growth promotion can be achieved. The plastic film adopts the design of the plastic film growth promoting unit 71, and a theoretically infinitely long plastic film growth promoting array can be formed through the plastic film growth promoting unit 71, so large-scale manufacturing and application can be realized. Each plastic film growth promoting unit 71 has a plastic film connector 711, and all units are connected through the in-film power line 73 and the in-film signal line 72, so the length of the plastic film can be cut according to actual needs, and the usage method is very flexible.

[0060] Each plastic film growth promotion unit 71 includes a plastic film connector 711, a power amplifier 712, a transducer wire 713, and a transducer array element 714. The power amplifier 712 preferably uses class D, T, or E power amplifiers with high amplification efficiency to improve the amplification efficiency; the transducer array element 714 uses a sheet-shaped PZT or PVDF film piezoelectric transducer, which forms a transducer array; the transducer array can be composed of one or more transducer array elements. When using multiple types of transducer array elements to form an array, different transducer array elements select different frequency bands to achieve broadband coverage, and they are arranged in an interspersed manner, and the transducer array elements of the same frequency band are distributed as evenly as possible within the transducer array.

[0061] The signal processor, watchdog, reset circuit, and power switch circuit form a basic system and are centrally controlled by the signal processor; users can connect to the wireless transmission module through a mobile phone or computer and change the current system working mode and parameters. When the signal processor receives an interrupt request generated by the wireless transmission module, it calls the corresponding wireless setting interrupt service program to complete the user's modification of the working mode and parameters; if the user does not make any settings, the system will execute tasks using the default working mode and parameters. If the user modifies the settings, the system will execute the acoustic wave growth promotion task using the modified working mode and parameters; when performing the acoustic wave growth promotion task and it is necessary to emit acoustic waves, the signal processor will retrieve the pre-stored growth promotion acoustic wave file from the non-volatile memory in the memory, such as flash memory, and convert it into an analog electrical signal through a DA converter, and then drive the transducer array in the plastic film 7 to generate growth promotion acoustic waves through amplification by a consolidation rate amplifier, realizing the acoustic wave growth promotion of plants.

[0062] To prove the creativity and technical value of the technical solution of the present invention, this part is an application embodiment of the technical solution of the claims on a specific product or related technology.

[0063] The embodiment of the present invention is applied to the use of acoustic waves by plants to accelerate the reproduction and metabolism of plant cells.

[0064] Some positive effects have been achieved during the research and development or use of the embodiment of the present invention, and it indeed has great advantages compared with the prior art. The following content will be described in combination with the data, charts, etc. of the test process.

[0065] Compared with the prior art such as existing plastic films and acoustic wave growth promotion devices, the present invention realizes many functions that the prior art cannot achieve, as shown in Table 1 specifically.

[0066] Table 1 Comparison between the present invention and prior art typical technologies

[0067]

[0068] As shown in Table 1, compared with the prior art, the present invention has obvious advantages, mainly reflected in: the present invention breaks away from the traditional sound box form and has a form highly similar to traditional plastic films, which solves the problem that it is difficult to apply traditional sound wave growth-promoting devices on a large scale, is very convenient to use, and the solar power supply enables it to be applied to most lands; the present invention is the first new technology that combines the functions of plastic films and sound wave growth promotion, and can achieve the perfect combination of plastic film growth promotion and sound wave growth promotion. Its expected growth-promoting effect is the growth-promoting yield Q 地 and the growth-promoting effect Q of sound wave growth promotion 声 superposition, while the growth-promoting yield Q of a single plastic film 地 can reach up to about 40% at most, and the growth-promoting effect Q of sound wave growth promotion 声 can reach 10-70%. It can be expected that the present invention combining the advantages of both will bring much better growth-promoting and growth-promoting effects than plastic films and traditional sound wave growth-promoting devices; compared with traditional sound wave growth-promoting devices, the present invention can be closely attached to plants. Even calculated at a distance of 5 cm from the plants, under the same conditions, the sound pressure level acting on the plants is at least 26 dB greater than the sound pressure level SPL0 of traditional sound wave growth-promoting devices. This means that the intensity of its sound wave growth-promoting effect is much greater than that of traditional sound wave growth-promoting devices. At the same time, it also means that when generating the same intensity of growth-promoting sound waves, the energy used by the present invention is much less than the energy used by existing sound wave growth-promoting devices, and it well realizes high-efficiency and high-intensity sound wave growth-promoting effects, which cannot be achieved by traditional sound wave growth-promoting devices.

[0069] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0070] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. A plastic film with a function of promoting growth by sound waves, characterized in that, The plastic film with the function of promoting growth by sound waves includes: Plastic film; The plastic film is linearly connected to the plastic film controller through the plastic film power line. The plastic film controller is linearly connected to the power controller. The power controller is linearly connected to the storage battery and the solar panel. The plastic film is composed of multiple plastic film growth promotion units. Each plastic film growth promotion unit is provided with a plastic film connector and a power amplifier. The power amplifier and the plastic film connector are linearly connected to the plastic film power line and the plastic film signal line; The plastic film growth promotion unit is further provided with a transducer cable, a transducer array and a plastic film growth promotion array. The transducer array is provided with transducer array elements. There are two layers of transparent or opaque flexible films on the upper and lower surfaces of the plastic film growth promotion array. The transducer array elements are closely attached to the upper and lower surfaces of the plastic film growth promotion array to form a rollable and deformable plastic film; The plastic film controller is composed of a signal processor, a DA converter, a memory, a wireless transmission module, a watchdog, a reset circuit and a power switch circuit; The signal processor is composed of one or more combinations of a single-chip microcomputer, a digital signal processor, a programmable logic gate array, an embedded system, and an oscillation circuit, generates a digital signal in the sound wave frequency band, and controls the on and off of the power switch circuit to realize the on and off of the power supply to the plastic film.

2. The plastic film with the function of promoting growth by sound waves according to claim 1, characterized in that, The digital signal in the sound wave frequency band generated by the signal processor is converted into an analog electrical signal by the DA converter and connected to the power amplifier in the plastic film growth promotion unit through the plastic film connector; The memory includes a non-volatile memory and a memory. The non-volatile memory is used for long-term storage of the sound wave data and programs to be played, and the memory is used for storing the running programs and data.

3. The plastic film with the function of promoting growth by sound waves as described in claim 1 is characterized in that, The wireless transmission module is mainly composed of a Bluetooth and a Wifi wireless transmission module, realizing the wireless connection and data transmission between the user's mobile phone, computer and the plastic film controller; The watchdog is used to prevent the program from running away abnormally; The reset circuit is used for the reset of the plastic film controller.

4. The plastic film with the function of promoting growth by sound waves according to claim 1, characterized in that, The transducer array is composed of sheet-shaped transducer array elements. The transducer array elements are made of piezoelectric ceramics and PVDF film materials into sheet-shaped structures, and then arranged neatly into a square or circular array, and are connected to the power amplifier through series, parallel or a combination thereof.

5. The plastic film with the function of promoting growth by sound waves according to claim 4, characterized in that, The transducer array elements are the same transducers or a combination of transducers with different frequency bands. When using transducers with multiple frequency bands, through an evenly distributed interspersed method, the transducer array elements of the same frequency band are evenly distributed in the transducer array to achieve wide-band coverage of the transducer array.

6. The plastic film with the function of promoting growth by sound waves according to claim 1, wherein, The plastic film is divided into two categories: complete coverage and penetration type; The completely covered plastic film covers the ground surface and does not have plant holes for plants to pass through after growing out. The penetration type plastic film has reserved plant holes for plants to pass through, and the plants grow freely through the plant holes.

7. A control method for a plastic film with a sound wave boosting function as described in claim 1, characterized in that, The control method of the plastic film with the function of promoting growth by sound waves includes: In the first step, the user first covers the plastic film on the surface of the land to be promoted, or can bury it in the surface soil; Connect the plastic film connector in any plastic film growth promotion unit of the plastic film to the plastic film controller through the plastic film power line and the plastic film signal line; In the second step, the plastic film controller is connected to the solar panel, the power controller and the storage battery through the power line; Turn on the switch in the plastic film controller to make the plastic film with the function of promoting growth by sound waves work; In the third step, the signal processor in the plastic film controller first initializes, setting the system operating environment and working parameters; In the fourth step, the signal processor in the plastic film controller detects whether there is a user input request in the wireless transmission module. If there is, it waits for the user input and adjusts the system operating parameters and task planning according to the parameters set by the user. If not, it runs with the system default parameters and task planning; In the fifth step, the signal processor in the plastic film controller executes the growth promotion task according to the task planning. When it is necessary to generate the growth promotion sound wave, it outputs the digital sequence of the growth promotion sound wave required for the current task to the DA converter; In the sixth step, the signal processor in the plastic film controller detects whether the growth promotion task is completed. If not, it continues to execute the growth promotion task. If completed, it shuts down the system.

8. The control method of the plastic film with the function of promoting sound wave growth according to claim 7, characterized in that, The required digital sequence of the growth promotion sound wave is converted into an analog electrical signal by the DA converter, and this signal is output to the power amplifier through the plastic film signal wire via the plastic film connector for amplification, and then drives the transducer array to generate the growth promotion sound wave.

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