Vibration control system and method

Abstract

The present invention relates to a vibration control system and method, and to the technical field of hydroponic cultivation. The system includes: a multi-layer cultivation rack with several layers of planting troughs constituting a plant growth space; an image monitoring unit for collecting plant species and plant growth data; a vibration unit arranged on the planting trough to provide vibration, and a control unit respectively connected to the image monitoring unit and the vibration unit signal, the vibration unit includes a first vibration unit providing mechanical vibration and a second vibration unit providing ultrasonic vibration, and the control unit is configured to: control the start-up timing, vibration frequency and vibration amplitude of the first vibration unit and the second vibration unit on each layer of the planting trough based on the plant species and the growth stage of the plant. The present invention can solve the problem of plant growth inhibition or other adverse physiological reactions.

Description

Technical Field

[0001] The present invention relates to the technical field of hydroponic cultivation, and in particular to a vibration control system and method, and specifically to a vibration control system and method in breeding and seedling raising of biological agriculture. Background Art

[0002] With the development of modern agricultural technology, traditional soil cultivation methods have gradually failed to meet the needs of efficient, environmentally friendly and sustainable agriculture. Hydroponic cultivation, as a soilless cultivation, is an agricultural technology that uses nutrient solution to meet the various nutrients required for plant growth and development. In this cultivation system, the roots of plants are directly immersed in a nutrient solution composed of water and nutrients, which facilitates the plants to directly absorb nutrients and increase their growth rate, while avoiding the influence of soil diseases and weeds in traditional soil cultivation. However, there are still some technical challenges in the practical application of hydroponic cultivation systems, especially in terms of the uniformity of nutrient solution, dissolved oxygen content, and root bacteria and pests. As the growth time of plants increases, the stability of the root environment during hydroponic cultivation becomes a key issue. In existing hydroponic cultivation systems, the nutrient solution replacement cycle and oxygen supplement cycle depend on the specific situation. For example, in some high-yield or high-density cultivation systems, the nutrient solution is replaced about once every 1 to 2 weeks; in most commercial hydroponic cultivation systems, the replacement cycle may be 2 to 4 weeks; in some systems with high automation and recycling capabilities, the replacement cycle may be longer, even up to several months, which is achieved by regularly testing the pH value, EC (conductivity), NO3 - and NH4 + Similarly, oxygen may be supplied continuously or at a fixed interval; some advanced systems may adjust the frequency of oxygenation based on the dissolved oxygen level detected by the sensor.

[0003] However, in the planting trough, the fluidity of water or nutrient solution is poor, which means that the concentration of nutrient solution in different areas of the planting trough is uneven, that is, the concentration of nutrient solution in some areas is low, while the concentration of nutrient solution in other areas is high. The uniformity of nutrient solution directly affects the growth efficiency and health of plants. Uneven nutrient solution will lead to uneven plant growth and even cause diseases. On the one hand, the roots of plants are the site of nutrient absorption. After the nutrients around the roots are absorbed, there is a difference in the content of nutrients near the roots of a specific plant and the nutrients far away from the roots. The pH value, EC (conductivity) or other ion data in the nutrient solution collected by sensors or other detection equipment cannot accurately reflect the overall situation in the planting trough. These data are not appropriate as a basis for supplementing or replacing nutrient solution. On the other hand, there are more or less differences in the growth of plants in the planting trough, such as different speeds of nutrient absorption and different intensities of respiration. Poor nutrient solution fluidity will lead to nutrient imbalance and growth restriction. Third, the roots need sufficient dissolved oxygen for respiration. Poor fluidity of water or nutrient solution will reduce the contact between oxygen and nutrient solution, reduce the content of dissolved oxygen, affect the respiration efficiency of the roots, and even cause root rot in severe cases. Fourth, the lack of fluid nutrient solution may lead to the accumulation of pathogenic microorganisms in the root area, increasing the risk of root infection.

[0004] In view of the above problems, the patent document with the announcement number CN214709429U discloses a plant hydroponic cultivation management system using a low-frequency generator, which includes: a hydroponic cultivation cabinet, a plant cultivation component, a control device, a low-frequency generator, and a culture solution recovery system; the plant cultivation component is arranged at the upper end of the hydroponic cultivation cabinet, and the control device, the low-frequency generator and the culture solution recovery system are all arranged at the lower end of the hydroponic cultivation cabinet. The management system performs low-frequency oscillation through the low-frequency generator to prevent and interfere with the reproduction and production of bacteria and pests in the plant cultivation component. However, the low-frequency generator is arranged below the hydroponic cultivation cabinet, and the low-frequency generator plate is covered and arranged on the circumference and bottom of the culture plate. The low-frequency generator generates heat during operation. The hydroponic cultivation cabinet has multiple layers, the device is compactly arranged, the number is large, and there are many accessories. Heat dissipation becomes a problem, and installation and maintenance are very troublesome. In the case of multiple plants or large-scale cultivation, all planting parts vibrate, requiring additional energy and space to meet the needs of more plants. During vibration, the vibrations of different layers or adjacent parts of the same layer will affect each other. The relevant parameters of vibration and the benefits of plant growth have not been verified. Therefore, the system has unpredictability in the process of plant growth.

[0005] The patent document with publication number CN112493104A discloses an ultrasonic vibration flower hydroponic device and hydroponic method, the device includes a box, a light source, an ultrasonic vibration device and a culture device; the top and bottom of the inner cavity of the box are fixedly installed with a light source and a storage plate respectively; the storage plate is fixedly installed with a culture device, and the culture device includes a culture bottle and a drip irrigation system; an ultrasonic vibration device is arranged above the culture device, and the ultrasonic vibration device can be set to adjust its vibration frequency, vibration amplitude and vibration duration. Although the device explores the influence of ultrasonic vibration on the growth cycle of a certain flower by controlling ultrasonic vibrations of different frequencies, different amplitudes and different durations, in order to effectively control the flowering time of flowers or prolong the flowering period, so as to improve the commercial value of flowers, it still needs to install an ultrasonic vibration device in each culture bottle. This one-to-one configuration increases the complexity and cost of the device, and the operation of the ultrasonic vibration device requires more energy; if more culture bottles need to be added, the number of ultrasonic vibration devices must be increased accordingly, which may lead to an increase in cost and space requirements when the system is expanded. When applied on a large scale, its economic feasibility is questioned. At the same time, the device does not take into account the adjustment of vibration parameters for different plants and their different growth stages.

[0006] In addition, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making the present invention, but due to space limitations, not all details and contents are listed in detail. However, this does not mean that the present invention does not have the characteristics of these prior arts. On the contrary, the present invention already has all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art to the background technology. Summary of the invention

[0007] In hydroponic cultivation systems, the current method of using vibration devices to promote plant growth is usually a one-to-one mode, that is, each planting trough and each plant requires an independent vibration device, which significantly increases the operating energy consumption of the system, and increases the cost of daily maintenance and replacement, and does not consider the feasibility and economy under large-scale planting conditions. Different plant species and different developmental stages of the same plant have different sensitivities to vibration. In the natural environment, different plants may have adapted to specific vibration frequencies (such as vibrations caused by wind or animal activities), and the prior art does not consider the response results of plants to specific vibration intensities and / or vibration frequencies at different developmental stages. The realization of the effect of vibration on plant growth promotion depends largely on the frequency and intensity of vibration. Moderate vibration can be beneficial to plant growth, but too strong or too frequent vibration may turn into stress and have an adverse effect on plants.

[0008] In particular, three-dimensional cultivation is often used in modern greenhouse cultivation to improve space utilization. Three-dimensional cultivation has multiple planting layers. The prior art installs a vibration device at each planting position. This setting not only significantly increases energy consumption and maintenance costs, but also causes the interaction of vibrations at adjacent positions of the same planting layer in the horizontal direction, as well as the interaction of vibrations on different planting layers in the vertical direction. Even if the vibration parameters set meet the needs of the plants, under the influence of the operation of other vibration devices, the actual vibration effect on the plants will deviate from the preset requirements. Therefore, the vibration system or method provided by the prior art may cause plant growth inhibition or other adverse physiological reactions.

[0009] The prior art has disclosed a technical solution for mixing nutrient solution by adding a vibration device to the plant planting equipment. For example, the patent document with the announcement number CN220174058U discloses a soilless cultivation tank for agricultural hydroponic vegetable planting, including a liquid storage tank, a planting device installed on the inner side of the liquid storage tank, mounting parts symmetrically installed on both sides of the liquid storage tank, an oscillation device installed on the top of the mounting parts, the bottom of the oscillation device is connected to the planting device, and the planting device includes a water storage tank 1, the bottom of the water storage tank 1 is fixedly connected to the water storage tank 2, and the inner sides of the water storage tank 1 and the water storage tank 2 are installed with a sliding component. This technical solution helps the plant roots absorb the nutrient solution in the appropriate position through the sliding component, and at the same time, the roots absorb air briefly to prevent the erosion of the plant roots. The planting device helps the hydroponic vegetables to adjust the different requirements of the plant roots for the nutrient solution water level at different growth stages, and the oscillation device helps the hydroponic vegetables to perform regular oscillations during the planting process to form a circulating flow of the nutrient solution to eliminate the local accumulation of harmful products of the root system. However, the oscillating device in the technical solution is fixedly installed, so its function is limited to vibrating and mixing the nutrient solution in a specific area. Although this method can promote the mixing of the nutrient solution to a certain extent, it is impossible to achieve differentiated treatment of the nutrient solution in different positions. This limitation may cause the nutrient solution in some areas to be excessively mixed, while other areas may be insufficiently mixed, thereby affecting the balanced growth of plants. In addition, the oscillating device in the technical solution drives the motor to realize the reciprocating shaking of the entire planting equipment. Although this method can form a circulating flow, this flow is global and cannot be adjusted for specific plants or specific areas. This means that whether the plants need this flow or not, they will be affected in the same way. This one-size-fits-all approach may cause some plants to be subjected to inappropriate vibrations, affecting their growth environment, and may even cause damage to the root system of the plants. On the contrary, the present invention monitors the growth environment of the plants (such as the concentration, temperature and pH value of the nutrient solution) and the vibration parameters of the vibration equipment at different positions through sensors, and then adjusts the vibration mixing parameters of the movable vibration equipment according to these data to ensure that the mixing of the nutrient solution can meet the growth needs of the plants without causing adverse effects on the plants.

[0010] In view of the shortcomings of the prior art, the first aspect of the present invention provides a vibration control system, which is particularly suitable for three-dimensional hydroponic cultivation. The vibration control system includes: a multi-layer cultivation rack with several layers of planting troughs constituting a plant growth space; an image monitoring unit for collecting plant types and plant growth data; a vibration unit arranged on the planting trough to provide vibration, and a control unit respectively connected to the image monitoring unit and the vibration unit signal, wherein the vibration unit includes a first vibration unit that provides mechanical vibration and a second vibration unit that provides ultrasonic vibration, wherein the control unit is configured to: control the start timing, vibration frequency and vibration amplitude of the first vibration unit and the second vibration unit on each layer of the planting trough based on the plant type and the growth stage of the plant.

[0011] Unlike the prior art, the present invention realizes multi-dimensional optimization of the plant growth environment by comprehensively applying two vibration modes, mechanical vibration and ultrasonic vibration. Based on the above-mentioned distinguishing technical features, the problems to be solved by the present invention may include: how to realize personalized vibration control of plants of different types and growth stages, and how to avoid mechanical damage to plants while promoting plant growth through vibration. The vibration control system provided by the present invention transforms the disadvantage of the cross-effect of the vibration module of the prior art into an advantage. Specifically, the present invention monitors the plant species and growth status in real time through an image monitoring unit to ensure that the control unit can obtain accurate plant information and provide data support for vibration control. The present invention utilizes the interaction between the vibration units to form a synergistic effect by accurately controlling the start-up timing, vibration frequency and vibration amplitude of the vibration, which can provide a more uniform and optimized growth environment for plants. In particular, the vibration unit of the present invention includes a first vibration unit that provides mechanical vibration and a second vibration unit that provides ultrasonic vibration. The control unit controls the start-up timing, vibration frequency and vibration amplitude of the two vibration units so that they can achieve the expected vibration effect in a mutually coordinated manner to meet the growth needs of the plants.

[0012] The present invention effectively promotes the flow of fluid (such as nutrient solution, water) in the planting trough by arranging a vibration unit on each layer of the planting trough, thereby reducing the phenomenon of fluid stagnation and uneven distribution of nutrients (the appearance of a nutrient depletion layer) in the planting trough, so that each plant can obtain sufficient nutrients. When the vibration unit is working, the fluid will fluctuate and increase the area of ​​contact between the fluid surface and the air. This process increases the amount of dissolved oxygen in the fluid. Secondly, the hydrostatic pressure around the roots of the plant will form a low oxygen zone (oxygen boundary layer), and vibration can help break this boundary layer, so that oxygen-rich liquid (water or nutrient solution) can reach the roots. Thirdly, vibration can promote the release and exchange of dissolved gases (including oxygen) in the nutrient solution, especially when the vibration frequency matches the gas exchange process; vibration can also generate microflows and turbulence in the nutrient solution, and these flow forms help to evenly distribute oxygen in the nutrient solution. In addition, bubbles may be attached to the roots of the plant and hinder the absorption of oxygen. Under vibration conditions, these bubbles are released and the roots are more likely to absorb oxygen. The root growth environment plays a vital role in plant growth and yield. The vibration unit of the present invention improves the root environment and reduces the hypoxia that may occur when the roots are immersed in static nutrient solution for a long time. A good oxygen supply helps to inhibit the growth of anaerobic pathogens and reduce the occurrence of root diseases, thereby ensuring normal respiration and metabolic activities of the roots.

[0013] Since the operating parameters of the vibration unit can be adjusted according to the type of plant, this flexibility allows the system to meet the differences in vibration sensitivity of different plants, thereby providing the most suitable growth environment for each plant. Plants with small or fragile roots, such as some foliage plants and herbaceous plants, are suitable for low-frequency vibration; plants with thick roots may be suitable for medium and high-frequency vibration. As the growth stage of the plant changes, its demand for vibration will also change. For example, there are differences in vibration requirements in the seed germination stage, seedling growth stage, vegetative growth stage, reproductive growth stage, and mature stage. By adjusting the parameters of the vibration unit, it is possible to adapt to the changes in the physiological needs of plants from germination to maturity.

[0014] In addition, the present invention realizes the mutual cooperation between different types of vibration units. The mechanical vibration generated by the first vibration unit will be transmitted through the medium, that is, the vibration generated by the first vibration unit on a planting trough of a certain level will be transmitted to the planting troughs of other levels, and the ultrasonic vibration generated by the second vibration unit will play a role in the corresponding planting trough. The control unit can coordinate the start-up timing, vibration frequency and vibration amplitude of the first vibration units of each level, and at the same time coordinate the start-up timing, action position and other parameters of the first vibration unit and the second vibration unit so that the vibration effect received by the plant is within the expected range. The unfavorable growth conditions for plants caused by the mutual influence of each vibration unit in the prior art are converted into positive factors that promote plant growth. While achieving the best vibration effect, invalid vibration is avoided, energy waste is reduced, and it is ensured that plants can obtain ideal vibration stimulation at each growth stage. For example, when the vibration effect of the nutrient solution generated by the vibration generated by the first vibration unit at a position relatively far from its vibration source is not sufficient to meet the expected requirements, it can be supplemented by enhancing the action parameters of the second vibration unit at this position, thereby satisfying the refined control at this position so that the vibration effect of the nutrient solution can meet the expected goals. The above two vibration units complement each other, reduce energy waste, and ensure that plants can obtain ideal vibration stimulation at each growth stage, thereby achieving the optimization of plant growth.

[0015] According to a preferred embodiment, the vibration control system also includes a vibration monitoring unit arranged in the planting trough to monitor the actual vibration intensity to which the plants are subjected. The control unit is configured to: based on the obtained actual vibration intensity to which the plants are subjected, control the first vibration units on the planting troughs at different levels to start working in an alternating vibration mode, so as to control the vibration intensity to which the plants are subjected within a preset range.

[0016] Unlike the prior art, the present invention realizes real-time monitoring of the actual vibration intensity of the plant by introducing a vibration monitoring unit, and then accurately controls the start-up timing and vibration mode of the vibration unit. Based on the above-mentioned distinguishing technical features, the problems to be solved by the present invention may include: how to provide suitable vibration stimulation for plants at different growth stages, and how to avoid potential damage to plants caused by excessive vibration. Specifically, the present invention collects data in real time through a vibration monitoring unit, and the control unit intelligently adjusts the alternating vibration mode of the first vibration unit according to these data to ensure that the vibration intensity remains within a preset optimal range, thereby promoting plant growth, reducing energy loss and avoiding vibration damage. The alternating or staggered vibration mode can ensure that the first vibration units of each layer are started in sequence (intermittent vibration mode) to avoid negative interference caused by synchronous vibration. In this way, the first vibration unit of each layer can obtain the best vibration effect within a specific time. On the other hand, the first vibration units of each layer can work in a pulsed vibration rather than a continuous vibration mode. This setting can reduce the excessive stimulation of the plant by the cross-vibration, while ensuring that each layer can receive vibration in different time periods, forming an overall good vibration stimulation effect.

[0017] According to a preferred embodiment, the control unit is configured to control the vibration frequency and amplitude of the first vibration unit on the spaced planting grooves to be greater than the first vibration unit in the middle of the spaced planting grooves. Preferably, the first vibration unit in the middle of the spaced planting grooves can be set to a closed working mode.

[0018] Unlike the prior art, the present invention achieves a more precise control of the plant growth environment by distinguishing the vibration frequency and vibration amplitude of the vibration unit. The control unit is particularly configured as follows: for the first vibration unit on the spaced planting trough, its vibration frequency and vibration amplitude are set to be greater than the first vibration unit on the planting trough in the middle of the interval, thereby optimizing the distribution of vibration energy, avoiding energy waste, and reducing mutual interference between adjacent vibration units. Based on the above-mentioned distinguishing technical features, the problems to be solved by the present invention may include: how to reduce energy consumption while ensuring plant growth needs, and reduce mutual interference between adjacent vibration units to improve the efficiency of the vibration control system. Compared with the first vibration unit on the planting trough in the middle of the interval, the first vibration unit on the spaced planting trough has a higher vibration frequency and vibration amplitude. This setting can not only reduce the excessive crosstalk of the vibration energy generated by the adjacent first vibration units, but also use the vibration transmitted by them to make the plants in the planting trough in the middle position in a better vibration stimulation condition, effectively transfer energy to the plants in the target position, and reduce the energy waste due to vibration loss.

[0019] According to a preferred embodiment, a slide rail for installing the first vibration unit is provided on the outer side of the side wall of the planting trough, and a slide rail for installing the second vibration unit is provided on the bottom plate inside the planting trough to facilitate changing the action positions of the first vibration unit and the second vibration unit.

[0020] The control unit can control the positions of the first vibration unit and the second vibration unit on the slide rail, as well as the vibration frequency and vibration amplitude of the first vibration unit and the second vibration unit, so that the vibration effect generated by the first vibration unit and the second vibration unit matches the growth requirements of the plant, and provides vibration effects for the plants at appropriate positions, thereby reducing the complexity of the overall structure and unnecessary energy waste. This setting saves installation, maintenance and repair costs, and integrates practicality and economy. By automatically controlling the moving position and vibration parameters of the vibration unit, the vibration effect can be applied to a specified position in a targeted manner, reducing the need for manual intervention and improving the automation level of the entire cultivation system, so it is very suitable for large-scale three-dimensional cultivation systems.

[0021] According to a preferred embodiment, the control unit is configured to: when the second vibration unit is working at a specific position, control the first vibration unit to move to a position away from the second vibration unit to work.

[0022] Unlike the prior art, the present invention can achieve dynamic adjustment of the action position of the vibration unit. When the second vibration unit is working at a specific position, the first vibration unit is controlled to move to a position away from the second vibration unit to work, thereby avoiding mutual interference between the two vibration units and ensuring the precise application of the vibration effect. Based on the above-mentioned distinguishing technical features, the problems to be solved by the present invention may include: how to provide customized vibration stimulation at different plant growth stages and positions to maximize plant growth efficiency. The control unit of the present invention ensures that each vibration unit works at a specific position, avoids excessive impact of vibration on the target area, reduces vibration dead angles and retention areas of nutrient solution circulation, improves the positioning accuracy of vibration stimulation, and effectively improves the efficiency and effect of vibration stimulation.

[0023] According to a preferred embodiment, the vibration control system also includes a concentration monitoring unit arranged at different positions in the planting trough to monitor whether the nutrient solution is evenly distributed and a pathogen monitoring unit for detecting the pathogen situation of the plant roots. The control unit is configured to: when the nutrient solution concentration at a specific position in the planting trough is outside a preset concentration range and / or the concentration of plant root pathogens at a specific position in the planting trough exceeds the upper limit of the pathogen concentration range, control the second vibration unit to slide to a specific position and start working in a mode with a vibration frequency of 20~100 kHz and a vibration amplitude of 10~500 μm. At the same time, based on the actual vibration intensity of the plant collected by the vibration monitoring unit, adjust the vibration frequency of the first vibration unit to 10~100 Hz and the vibration intensity to 0~5 mm, so that the jointly generated vibration can effectively stimulate the plant.

[0024] Unlike the prior art, the present invention realizes real-time monitoring and intelligent response to the plant growth environment by integrating nutrient solution concentration monitoring and pathogen monitoring units. Based on the above-mentioned distinguishing technical features, the problems to be solved by the present invention may include: how to realize real-time monitoring and intelligent regulation of the plant growth environment, and how to assist in controlling pathogens through physical vibration methods to improve the growth quality and disease resistance of plants. Specifically, when it is detected that the nutrient solution concentration is abnormal or the pathogen concentration exceeds the standard, the second vibration unit is automatically adjusted to a specific position and starts working at an appropriate vibration frequency and amplitude. At the same time, according to the actual vibration intensity to which the plant is subjected, the vibration parameters of the first vibration unit are dynamically adjusted to ensure that the vibration stimulation is within the optimal range for plant growth.

[0025] The present invention identifies the positions where the nutrient level is too low or too high by monitoring the nutrient solution concentration at different positions in the planting trough, and can also monitor whether the pathogen concentration at the root of each plant exceeds the safety threshold. When these situations occur, the control unit can control the second vibration unit to a specific position to start working with specific vibration parameters. Since the second vibration unit has applied a specific vibration intensity to the plant, it is also necessary to adjust the vibration parameters of the first vibration unit to control the vibration effect actually received by the plant within an optimal range. While the present invention improves the uneven distribution of nutrient solution and the concentration of pathogens at the root in a targeted manner, it can also control the common vibration intensity generated by the first vibration unit and the second vibration unit within the optimal range required by the plant, significantly promoting the growth of the plant. This setting strengthens the root health of the plant through effective stimulation and control of pathogens, improves the resistance of the plant to diseases and the overall growth vitality, and uses physical vibration methods to assist in controlling pathogens, reducing dependence on chemical pesticides, and helping to produce safer and more environmentally friendly agricultural products.

[0026] According to a preferred embodiment, the pathogen monitoring unit divides the pathogens in the roots into pathogens with strong adhesion and deep into the root tissue and pathogens attached to the root surface (superficial pathogens) according to the type and characteristics of the pathogens. The control unit outputs a targeted vibration treatment plan based on the type and characteristics of the pathogens. In particular, when removing pathogens with strong adhesion and deep into the root tissue, it is necessary to comprehensively consider the vibration intensity, vibration frequency, and vibration time, and it is also necessary to ensure that the vibration parameters are within the safety threshold to avoid irreversible damage to the plant.

[0027] According to a preferred embodiment, the control unit is configured to: when the pathogens at the roots are superficial pathogens, control the second vibration unit to vibrate and stimulate the plant roots in a mode of a first vibration amplitude, a first vibration frequency, and a first vibration period; when the pathogens at the roots are pathogens with strong adhesion and deep into the root tissue, control the second vibration unit to vibrate and stimulate the plant roots in a mode of a second vibration amplitude, a second vibration frequency, and a second vibration period, wherein the first vibration amplitude is smaller than the second vibration amplitude; and the first vibration period is longer than the second vibration period. The second vibration frequency is preferably to stimulate the plant roots alternately in a larger or smaller vibration frequency.

[0028] The larger the vibration amplitude, the higher the energy of the vibration, that is, the stronger the impact on the plant roots; the larger the vibration amplitude means that the vibration wave can propagate farther in the medium and the affected area is wider; at the same time, the larger vibration amplitude may lead to a more significant cavitation effect, forming more bubbles and accompanied by a stronger pressure shock wave. Since superficial pathogens on the roots are easier to fall off, a smaller vibration amplitude and a longer vibration interval are set. This setting can not only ensure that the pathogens on the surface of the plant roots are vibrated off, but also minimize the risk of damage to the plant root system. The first vibration amplitude is, for example, 10-30 μm, which is sufficient to loosen pathogens with weaker adhesion while reducing the impact on the plant root system. The first vibration frequency is, for example, 20-40 kHz. The first vibration cycle is, for example, 3-5 times a day, each time for 10-15 minutes. This setting leaves enough interval time after the vibration stimulation to allow the plant to recover and reduce potential stress on the plant.

[0029] For pathogens with strong adhesion and deep into the root tissue of the plant, the second vibration amplitude is larger, for example, 0.1~0.5mm, the second vibration frequency is 20~50 kHz, and the second vibration period is, for example, 1~3 times a day, each time for 5~10 minutes. In particular, the vibration intensity and / or vibration frequency of each vibration period can change in stages. For example, in the first vibration period, the vibration intensity is 0.3 mm, the vibration frequency is 30 kHz, and the vibration period is 5 minutes. When the root vibration stimulation of the plant is initially performed, the stimulation is started with a smaller vibration amplitude, vibration frequency and vibration period to provide an initial buffer stage for the plant; at the same time, the lower vibration frequency corresponds to a longer wavelength, which has less attenuation in the medium and has better penetration. For pathogens that penetrate deep into the root tissue, the lower vibration frequency can reach the deep tissue and exert its effect, so that the pathogens are loosened. When the plant enters the second vibration period after a recovery period (such as stopping vibration for 6 hours), the plant roots are stimulated with a larger vibration amplitude and a higher vibration frequency, for example, the vibration amplitude is 0.5 mm, the vibration frequency is 50 kHz, and the vibration period is 5 minutes. A higher vibration frequency corresponds to a shorter wavelength, which is easier to focus. It can generate a stronger mechanical force in a smaller area, which helps to remove pathogens in a specific area in a targeted manner. Since the pathogens have been loosened by the vibration of the first vibration cycle, in the second vibration cycle, the larger vibration amplitude and higher vibration frequency further help the pathogens in the deep tissue to fall off from the root tissue. Preferably, the number of vibration cycles is set according to the severity of the pathogen infection in the plant root, and the vibration amplitude and vibration frequency of adjacent vibration cycles are alternately exerted with larger and smaller values. The alternating stimulation method of this setting will not damage the plant tissue due to long-term stimulation of the plant with a larger vibration amplitude and a higher vibration frequency. In different vibration cycles, the smaller vibration amplitude and lower vibration frequency first give the plant buffer time and preliminarily loosen the root pathogens; when entering the next vibration cycle, the tolerance of the plant is relatively improved, and the use of a larger vibration amplitude and a higher vibration frequency can make it easier to focus on the pathogens and make the loosened pathogens detach from the roots.

[0030] In other cases, vibration alone cannot remove pathogens that have strong adhesion or are deeply embedded in the root tissue. Therefore, under the premise of ensuring safety, the present invention also combines chemical treatment methods and vibration schemes to ensure effective removal of pathogens.

[0031] According to a preferred embodiment, a nozzle with adjustable direction is installed in the planting trough, which is used to accurately apply chemical reagents to ensure that the chemical reagents can directly act on specific root tissues. The chemical treatment method is combined with vibration, and the spray mode of the nozzle is designed to adapt to different sterilization requirements (such as continuous spraying, pulse spraying or fan-shaped spraying). When spraying to the specified root tissue, the second vibration unit is turned on, that is, the spraying action of the nozzle is synchronized with the ultrasonic vibration frequency to achieve spraying at the vibration peak. The vibration can assist the chemical reagent sprayed by the nozzle to better penetrate and distribute between the root tissues, thereby achieving the purpose of enhancing the sterilization effect. The nozzle for spraying chemical reagents and the second vibration unit work together. When the spray pressure increases, the vibration amplitude and / or vibration frequency of the second vibration unit decreases, while effectively removing pathogens, minimizing additional damage to plants. Chemical reagents such as copper hydroxide, methyl thiophanate, fenpropimorph, hydrogen peroxide, biological pesticides (microbial fungicides) and silver ion solutions.

[0032] According to a preferred embodiment, the vibration control system integrates the automatic control program of chemical reagent injection, vibration and water pump circulation. The injection action of the chemical reagent nozzle is synchronously processed with the ultrasonic vibration. Under the action of vibration, the pathogens treated by the chemical reagent are more likely to fall off from the roots, and the flowing hydroponic solution formed by the water pump circulation quickly washes them away, reducing the risk of pathogen reattachment; on the other hand, the flowing hydroponic solution can avoid the long-term accumulation of chemical reagents in the hydroponic solution, reduce the potential damage to the plant root system, and remove pathogens and chemical reagents in time, which helps to maintain the overall safety of the hydroponic environment and reduce the possibility of disease transmission. A clean root environment helps plants absorb nutrients better and promotes healthy growth and development of plants. Therefore, this solution combines chemical reagent injection, ultrasonic vibration and water pump circulation to significantly improve the efficiency of removing pathogens from plant roots. This technical solution can adjust the operating parameters according to different types of plants and pathogen types and characteristics to adapt to different cultivation needs, accurately control the injection direction and vibration parameters of chemical reagents, and optimize plant protection strategies. The vibration control system can adjust the concentration and vibration parameters (amplitude, frequency, duration, etc.) of the chemical reagent according to the severity of the pathogen. According to the results of regular monitoring of plant root diseases, the vibration control system adjusts the frequency and intensity of vibration and chemical treatment. If it is detected that the pathogens are resistant to certain chemical agents, other types of chemical agents are replaced or used alternately. Preferably, during the outbreak of the disease, the vibration control system quickly adjusts to a higher intensity of vibration and chemical treatment to quickly suppress the spread of the disease.

[0033] According to a preferred embodiment, the control unit is configured to: when the plant grows under preset vibration frequency and / or vibration amplitude conditions, adjust the vibration frequency and / or vibration amplitude of the vibration unit based on the growth data of the plant acquired by the image monitoring unit to meet the growth needs of the plant at different growth stages.

[0034] Unlike the prior art, the present invention dynamically adjusts the vibration parameters by real-time analysis of plant growth data, thereby achieving more accurate and personalized plant growth support. Based on the above-mentioned distinguishing technical features, the problems to be solved by the present invention may include: how to timely update and adjust the vibration parameters to optimize the plant growth environment according to the specific growth stage and real-time growth data of the plant, so that the actual vibration parameters match the growth state of the plant. Technical effect: The growth data of the plant can reflect the growth stage of the plant. As the plant grows, for example, from the seedling stage to the seedling stage, the plant root system becomes stronger, so it is necessary to adjust the vibration stimulation intensity. Real-time adjustment of the vibration frequency and amplitude can better meet the needs of plants at different growth stages, thereby increasing their growth rate and biomass accumulation. On the other hand, through the plant growth data obtained by the image monitoring unit, such as plant height, leaf area, number of leaves, flowering time, number of flowers, etc., the control unit can obtain vibration parameters that are beneficial to plant growth, thereby providing customized vibration parameters for specific growth stages of specific plants, and ensuring the health of the plant throughout the growth cycle. In some cases, although a preset vibration intensity is applied to the plant at the corresponding growth stage, after a period of stimulation, the growth data of the plant reflects that the growth of the plant is inhibited or the growth rate is increased, so it is necessary to adjust the vibration parameters in real time according to the growth conditions of the plant.

[0035] According to a preferred embodiment, the vibration control system also includes a light detection device for collecting light parameters of the plant growth space, and the control unit is configured to control the working time, vibration frequency and / or vibration amplitude of the vibration unit according to the light intensity reflected by the light detection device.

[0036] Unlike the prior art, the present invention can intelligently adjust the working time, vibration frequency and / or vibration amplitude of the vibration unit according to the light intensity data reflected by the light detection device to adapt to the growth needs of plants under different lighting conditions. Based on the above-mentioned distinguishing technical features, the problems to be solved by the present invention may include: how to achieve precise regulation of vibration parameters under changing lighting conditions so that the plant metabolic activity under specific lighting conditions matches the vibration parameters. In some implementation situations, such as under dark conditions, the metabolic activity of plants usually slows down and the demand for oxygen by the roots of plants decreases. The vibration frequency and / or vibration amplitude may need to be lowered. At the same time, it is also necessary to consider reducing the vibration occurrence time or stopping the vibration to avoid causing additional pressure on plant growth. When the plant metabolic activity is weak, the vibration can be paused, which can not only save energy but also reduce interference with plant growth.

[0037] According to a preferred embodiment, the vibration control system also includes an oxygen collection device for collecting the oxygen content in the fluid, and the control unit is configured to control the working time, vibration frequency and / or vibration amplitude of the vibration unit according to the oxygen content reflected by the oxygen collection device.

[0038] Too strong vibration may cause excessive fluctuations in the dissolved oxygen content in the nutrient solution, which may affect the root growth of the plant. When the oxygen content is adapted to the current plant growth stage, the control unit may control the vibration unit to stop vibrating, or reduce the vibration frequency and / or vibration amplitude to avoid long-term fluctuations in the oxygen content in the nutrient solution.

[0039] According to a preferred embodiment, the vibration monitoring unit is arranged near the root of the plant or directly attached to the root to measure the actual vibration intensity to which the root is subjected.

[0040] According to a preferred embodiment, the movement directions of the vibration units at adjacent levels are opposite.

[0041] In the multi-layer structure of the cultivation rack, the movement strategy of the first vibration unit and the second vibration unit on the slide rail optimizes the space utilization, because the same vibration unit can serve the plants of the whole layer, without the need to set up a separate vibration unit for each plant. The unified vibration strategy can promote the synchronization of plant growth in the same layer, which is very important for batch production and uniform harvesting. Furthermore, the mechanical shear force generated by the vibration can destroy the bacterial biofilm, thereby reducing the risk of root diseases (bacteria and pathogens that inhibit roots).

[0042] Another aspect of the present invention provides a vibration control method, which is implemented based on the vibration control system provided by the first aspect of the present invention.

[0043] The vibration control method includes the following steps: S1, collecting plant types and plant growth data; S2, controlling the start timing, vibration frequency and vibration amplitude of the first vibration unit and the second vibration unit according to the plant types and plant growth stages to adapt to the growth needs of the plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of module connection of vibration control system;

[0045] Figure 2 It is a structural diagram of a multi-layer cultivation rack;

[0046] Figure 3 This is a bottom view of the multi-layer cultivation rack;

[0047] Figure 4 This is a schematic diagram of the installation of the slide rail and the vibration unit on a cultivation rack;

[0048] Figure 5 This is a schematic diagram of the installation of the slide rail and the vibration unit on a cultivation rack from another perspective;

[0049] Figure 6 This is a top view of the cultivation rack;

[0050] Figure 7 It is another embodiment of the slide rail of the second vibration unit in the cultivation rack;

[0051] Figure 8 is a schematic structural diagram of a first vibration unit;

[0052] Fig. 9 is a schematic structural diagram of a second vibration unit;

[0053] Fig.10 This is a schematic diagram of a scene when the first vibration unit and the second vibration unit are working.

[0054] Reference numerals list

[0055] 100: multi-layer cultivation rack; 110: planting trough; 111: water supply end; 112: drainage end; 113: nutrient solution; 120: light source; 200: slide rail; 300: vibration unit; 301: vibration source; 302: vibration head; 303: slider; 310: first vibration unit; 320: second vibration unit; 400: image monitoring unit; 500: control unit. DETAILED DESCRIPTION

[0056] The following is a detailed description with reference to the accompanying drawings. In the description of the present invention, it should be noted that if the terms "inside", "outside", "upper", "lower", "bottom" and the like are used to indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply 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 on the present invention.

[0057] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0058] This embodiment provides a vibration control system, which is particularly suitable for three-dimensional hydroponic cultivation, such as Figure 1 and Figure 2 As shown, it includes a multi-layer cultivation rack 100, an image monitoring unit 400, a vibration unit 300 and a control system. The multi-layer cultivation rack 100 constitutes a growth space for plants. The multi-layer cultivation rack 100 has a multi-layer planting trough 110. The vibration unit 300 is arranged on the planting trough 110 to provide a vibration effect. A slide rail 200 is provided on each layer of the planting trough 110 on the multi-layer cultivation rack 100. The vibration unit 300 is connected to the planting trough 110 or in the planting trough 110 through the slide rail 200. The control unit 500 is respectively connected to the image monitoring unit 400 and the vibration unit 300 by signal. The image monitoring unit 400 is used to collect plant types and plant growth data. The vibration unit 300 includes a first vibration unit 310 that provides mechanical vibration and a second vibration unit 320 that provides ultrasonic vibration. The first vibration unit 310 is preferably a mechanical vibrator. The second vibration unit 320 is preferably an ultrasonic vibrator. The control unit 500 is configured to: control the first vibration unit 310 ( Figure 8 ) and the second vibration unit 320 ( Fig. 9 )’s start timing, vibration frequency and vibration amplitude.

[0059] The installation diagram of the slide rail 200 and the vibration unit 300 is shown in FIG. Figures 4 to 7According to a preferred embodiment, a slide rail 200 for installing the first vibration unit 310 is provided on the outer side of the side wall of the planting trough 110, and a slide rail 200 for installing the second vibration unit 320 is provided on the bottom plate of the planting trough 110, so as to change the action positions of the first vibration unit 310 and the second vibration unit 320. The first vibration unit 310 is connected to the slide rail 200 on the outer side of the side wall of the planting trough 110, as shown in FIG. Figures 3 to 7 The second vibration unit 320 is connected to the slide rail 200 on the bottom plate in the planting groove 110, as shown in FIG. Figures 4 to 7 shown.

[0060] The control unit 500 includes a microprocessor and a storage device for storing control algorithms and plant growth data. Preferably, the control unit 500 is integrated into a highly automated and centrally controlled system (such as an integrated intelligent management platform). The intelligent management platform is usually located in the center or management area of ​​the greenhouse. The control unit 500 can integrate data from different sensors and monitoring devices, and provide in-depth insights and prediction functions through advanced data analysis technologies such as artificial intelligence and machine learning; while adapting to changing monitoring and control needs. The control unit 500 also includes a user interface through which the staff can operate. In some modern greenhouses, the control unit 500 (central control system) may be integrated on a mobile device, such as a tablet or a smartphone, which allows the staff to control it from anywhere in the greenhouse. The data processing and storage of the control unit 500 (central control system) may be located on a remote cloud server, while the actual control interface can be accessed anywhere through the network. The control unit 500 can record the operating data of the vibration control system and establish a historical database for long-term analysis and trend prediction. The control unit 500 can self-learn based on historical data and real-time feedback, continuously optimize the control strategy, improve work efficiency, and provide optimal growth conditions for plant growth.

[0061] The image monitoring unit 400 can be an image recognition camera. The image monitoring unit 400 sends the collected image information to the control unit 500. The control unit 500 performs feature extraction, such as leaf shape, color, texture, flower morphology, etc., after preprocessing the collected image (including denoising, contrast enhancement, brightness and color balance adjustment, etc.). These features will be used to identify plant types and growth stages. The image monitoring unit 400 can be integrated into the proximal phenotyping analysis system (PhenoAINear), which consists of an industrial-grade imaging room and analysis software. PhenoAI Near can extract a variety of phenotypic indicators of whole plants and organs (leaves, flowers, branches, fruits, etc.) of various horticultural crops, field crops, and cash crops, and can also flexibly expand personalized indicators by adding models.

[0062] Preferably, the control unit 500 can be integrated into PhenoAI Near. The control unit 500 identifies the plant type or growth stage based on a trained classification model or an applied classification model. Specifically, the control unit 500 trains a classification model through a machine learning or deep learning method, and inputs the extracted features into the trained classification model. The model will output the most likely plant type or growth stage, that is, construct an image data set containing multiple plant types and growth stages for training and testing the model. Preferably, a suitable image recognition algorithm is selected, such as a convolutional neural network (CNN), a support vector machine (SVM), a random forest, etc., to recognize the image. Preferably, Python, TensorFlow, Keras and other platforms are used for model training and deployment.

[0063] Furthermore, for the recognition of the plant growth stage in the image collected by the image monitoring unit 400, the training model defines different growth stages of the plant according to the growth characteristics of the plant, such as seed germination stage, seedling stage, growth stage, flowering stage, fruiting stage, etc. A stage recognition model is trained using a machine learning or deep learning method, which also requires a large amount of plant image data and corresponding labels (growth stage). The extracted features are input into the trained stage recognition model, and the model will output the most likely growth stage.

[0064] Preferably, the plant growth data include germination rate, root length, plant height, number of leaves, flowering time, number of flowers, biomass, fruiting rate, etc.

[0065] According to a preferred embodiment, the control unit 500 is configured to control the vibration frequency and / or vibration amplitude of the vibration unit 300 on the slide rail 200 according to the type of plant and the growth stage of the plant to adapt to the growth requirements of the plant.

[0066] For different plant types, such as flowers, the control unit 500 controls the vibration frequency of the vibration unit 300 to be 20~30 Hz and the amplitude to be 10~20 μm. Flower plants are more sensitive to vibration, and lower vibration frequencies and smaller amplitudes can be used. For leafy vegetables (such as lettuce and spinach), the control unit 500 controls the vibration frequency of the vibration unit 300 to be 40~50 Hz and the amplitude to be 20~30 μm. Leafy plants usually respond better to vibrations, and you can try to use medium frequencies and amplitudes. If it is vegetables (such as tomatoes and cucumbers), the control unit 500 controls the vibration frequency of the vibration unit 300 to be 50~70 Hz and the amplitude to be 30~50μm. Fruit and vegetable plants require higher vibration frequencies and amplitudes during the growth period to promote the development of fruits.

[0067] For plants at different growth stages, such as the seedling stage, the control unit 500 controls the vibration frequency of the vibration unit 300 to be 20~40 Hz and the amplitude to be 10~20 μm. The seedling stage is more sensitive to vibration, so a lower vibration frequency and amplitude are used. For example, in the growth stage, the control unit 500 controls the vibration frequency of the vibration unit 300 to be 40~60 Hz and the amplitude to be 20~40 μm. During the rapid growth period of the plant, the vibration frequency and amplitude can be moderately increased to promote root development and nutrient absorption. For example, in the mature stage, the control unit 500 controls the vibration frequency of the vibration unit 300 to be 30~50 Hz and the amplitude to be 13~50 μm. In the mature stage of the plant, the frequency and amplitude of the vibration are reduced to maintain the growth balance of the plant.

[0068] Under the set vibration parameter conditions, the following data were collected. The test data are shown in Table 1.

[0069] Table 1

[0070]

[0071] Table 2 shows the plant growth conditions of the non-vibration control group and the vibration treatment group. See the table below for details.

[0072] Table 2

[0073]

[0074] The non-vibration control group in Table 2 is a group that is not subjected to vibration treatment, and the vibration frequency of the vibration treatment group is 10 Hz and the vibration amplitude is 2 mm. This example reflects the effect of vibration on plant growth by comparing parameters such as plant height, leaf area, number of leaves, root length and number of roots.

[0075] In terms of plant height, at the beginning of the experiment, there was no significant difference between the non-vibration control group and the vibration treatment group. By the end of the experiment, the plant height of the non-vibration control group increased by an average of 14.9 cm, and the plant height of the vibration treatment group increased by an average of 19.6 cm. At the end of the experiment, the plant height of the vibration treatment group was significantly higher than that of the non-vibration control group (an average of more than 4.8 cm). This result suggests that vibration may promote the vertical growth of plants. Specifically, vibration may stimulate cell division and cell expansion in plants, while increasing the permeability of cell walls so that water and nutrients are more efficiently transported to various parts of the plant, thereby promoting the overall growth of the plant.

[0076] In terms of leaf area, there was no significant difference between the non-vibration control group and the vibration treatment group at the beginning of the experiment. By the end of the experiment, the leaf area of ​​the non-vibration control group had increased by an average of 300 cm 2 The blade area of ​​the vibration treatment group increased by an average of 405 cm 2At the end of the experiment, the leaf area of ​​the vibration treatment group was significantly higher than that of the non-vibration control group (average more than 110 cm 2 ). The increase in leaf area may be related to the improvement of photosynthesis efficiency. Larger leaf area means that the plant can absorb more light energy, which in turn improves the efficiency of photosynthesis. Vibrations may also affect the distribution and function of chloroplasts, thereby enhancing leaf growth and development.

[0077] In terms of leaf number, at the beginning of the experiment, there was no significant difference between the non-vibration control group and the vibration treatment group. By the end of the experiment, the number of leaves in the non-vibration control group increased by an average of 30, and the number of leaves in the vibration treatment group increased by an average of 35. At the end of the experiment, the number of leaves in the vibration treatment group was significantly higher than that in the non-vibration control group (an average of more than 6). Vibration can not only increase leaf area, but also promote the increase in leaf number. Vibration may stimulate the secretion of plant hormones, such as cytokinin, thereby enhancing the differentiation and growth of leaf buds. This hormonal change can prompt plants to produce more leaves and increase the surface area for photosynthesis.

[0078] In terms of root length, at the beginning of the experiment, there was no significant difference between the non-vibration control group and the vibration treatment group. By the end of the experiment, the root length of the non-vibration control group increased by an average of 24.8 cm, and the root length of the vibration treatment group increased by an average of 29.6 cm; at the end of the experiment, the root length of the vibration treatment group was significantly higher than that of the non-vibration control group (average more than 5.2 cm). In terms of root number, at the beginning of the experiment, there was no significant difference between the non-vibration control group and the vibration treatment group. By the end of the experiment, the number of roots in the non-vibration control group increased by an average of 20, and the number of roots in the vibration treatment group increased by an average of 27; at the end of the experiment, the number of roots in the vibration treatment group was significantly higher than that of the non-vibration control group (average more than 7). The effect of vibration on the root system is also significant. It can promote the growth of root length and the increase of root number. Vibration may improve the oxygen supply around the root system and the absorption efficiency of nutrients. Vibration may stimulate the cell division and elongation of the root system, which helps to form a deeper and wider root structure and improve the stability and water absorption capacity of the plant. More roots mean a larger absorption surface area, that is, the plant can absorb more water and nutrients from the hydroponic environment. Vibration may achieve this by promoting the growth of lateral roots, thereby improving the overall nutrient uptake efficiency of the plant.

[0079] Therefore, the vibration stimulation provided in this embodiment can promote plant growth (faster growth, more efficient resource utilization and stronger plants) by enhancing cell division, expanding nutrient absorption, and improving plant structure through physical stimulation. The vibration control system provided in this embodiment is suitable for a variety of hydroponic cultivation systems, which can improve agricultural production efficiency and plant yield.

[0080] Table 3 shows the pathogen removal results of the non-vibration control group and the vibration treatment group.

[0081] Table 3

[0082]

[0083] The hydroponic cultivation environment is generally a sterile environment, but pathogens may still breed. This example reflects the effect of vibration treatment by comparing the types of pathogens and the concentrations of pathogens (in CFU) in the two groups. The vibration frequency of the vibration treatment group is 10 Hz and the vibration amplitude is 2 mm.

[0084] In terms of pathogen species, at the beginning of the experiment, the types of pathogens in the non-vibration control group and the vibration treatment group were the same, both fungi A, fungi B and bacteria C; at the end of the experiment, the non-vibration control group still had fungi A, fungi B and bacteria C, while the pathogens in the vibration treatment group were fungi A and bacteria C, with fewer pathogen species than the non-vibration control group. In terms of pathogen concentration, the pathogen concentration in the vibration treatment group decreased more than that in the non-vibration control group at the end of the experiment. Although the pathogen concentration itself is low, if it is not managed, the pathogen may also multiply rapidly under suitable conditions (humidity, temperature, nutrients), and during the growth of plants, the nutrient-rich solution in a static state (lack of flow) provides a good breeding environment for pathogens (especially Saprolegnia or other fungal pathogens), and the rapidly multiplying pathogens will infect the plant roots, leading to root rot or other disease outbreaks.

[0085] According to the results in Table 3, the types of pathogens in the vibration treatment group decreased, and the concentration of pathogens decreased faster. Specifically, vibration treatment can destroy the cell structure of pathogens, reduce their surviving types, and thus reduce the risk of disease. Vibration helps to promote the flow of solution, thereby taking away pathogens, keeping the water clean, and achieving the purpose of reducing the concentration of pathogens. Therefore, the vibration control system provided in this embodiment can effectively control the development of pathogens, thereby providing a healthier growth environment for plants, reducing the probability of disease outbreaks, and ultimately ensuring the yield and quality of plants.

[0086] According to a preferred embodiment, the vibration control system further includes a vibration monitoring unit disposed in the planting trough 110 to monitor the actual vibration intensity of the plant. The control unit 500 is configured to: based on the obtained actual vibration intensity of the plant, control the first vibration unit 310 on the planting trough 110 of different levels to start working in an alternating vibration mode to control the vibration intensity of the plant within a preset range of 0-5 mm. Taking tomato planting as an example, during the vegetative growth stage, the vibration mode of the mechanical vibrator on the adjacent planting trough 110 can be, for example, intermittent vibration or pulse vibration (specific vibration parameters are, for example, 10-80 Hz, 0-1 mm). In other cases, the mechanical vibrators on adjacent levels work alternately, such as a mechanical vibrator on one level vibrates at 30-60 Hz, 2-5 mm, and the mechanical vibrator on the adjacent level does not work; after a period of time (1 hour), the working modes of the two are alternated.

[0087] According to a preferred embodiment, the control unit 500 is configured to: control the vibration frequency and vibration amplitude of the first vibration unit 310 on the spaced planting grooves 110 to be greater than the first vibration unit 310 in the middle of the spaced planting grooves 110. Preferably, the first vibration unit 310 in the middle of the spaced planting grooves 110 can be set to a closed working mode. For example, the vibration frequency and vibration amplitude of the first and third levels are 30~60 Hz, 2~5 mm, respectively, and the vibration frequency and vibration amplitude of the second level are 20~50 Hz, 1~4 mm (smaller than the values ​​of the first three levels or 0).

[0088] According to a preferred embodiment, the control unit 500 is configured to control the first vibration unit 310 to move to a position away from the second vibration unit 320 to operate when the second vibration unit 320 operates at a specific position. Fig.10 It is a schematic diagram of a scene when the first vibration unit 310 and the second vibration unit 320 are working. When the ultrasonic vibrator is located in the middle of the planting groove 110 and is working, the mechanical vibrator of this layer moves toward the two ends of the planting groove 110.

[0089] According to a preferred embodiment, the vibration control system also includes a concentration monitoring unit arranged at different positions in the planting trough 110 to monitor whether the nutrient solution 113 is evenly distributed and a pathogen monitoring unit for detecting the pathogen situation of the plant roots. The control unit 500 is configured as follows: when the concentration of the nutrient solution 113 at a specific position in the planting trough 110 is outside a preset concentration range and / or the concentration of the plant root pathogens at a specific position in the planting trough 110 exceeds the upper limit of the pathogen concentration range, the second vibration unit 320 is controlled to slide to a specific position and start working in a mode with a vibration frequency of 60 kHz and a vibration amplitude of 20~50 μm. At the same time, based on the actual vibration intensity of the plant collected by the vibration monitoring unit, the vibration frequency of the first vibration unit 310 is adjusted to 30 Hz and the vibration amplitude is 3 mm, so that the vibration generated together can effectively stimulate the plant.

[0090] Preferably, the concentration monitoring unit is, for example, a conductivity sensor (EC), which is used to monitor the concentration of dissolved salts in the nutrient solution 113. Conductivity is a key parameter for measuring the content of inorganic salts in the nutrient solution 113, and a higher EC value indicates a higher ion concentration. The concentration monitoring units at different positions can identify positions where the nutrient level is too low (inhibiting growth) or where the nutrient level is too high (potentially toxic), and the control unit 500 can specify the ultrasonic vibrator to slide toward a specified position (such as sliding toward a position where the nutrient level is too high) and work based on the position where the nutrient level is too low or too high. The pathogen monitoring unit can be a biosensor that combines nucleic acid solid phase extraction, LAMP isothermal amplification, CRISPR / Cas12a in vitro shearing, and immune test strips to establish a rapid nucleic acid detection technology system.

[0091] According to a preferred embodiment, the control unit 500 is configured to: when the plant grows under a preset vibration frequency and / or vibration amplitude condition, based on the growth data of the plant acquired by the image monitoring unit 400, adjust the vibration frequency and / or vibration amplitude of the vibration unit 300 (for example, 30~60 Hz, 20~50 μm, which can be a range after adjustment, specifically determined according to the growth data of the plant) to meet the growth needs of the plant at different growth stages.

[0092] According to a preferred embodiment, the vibration control system further includes a light detection device for collecting light parameters of the plant growth space, and the control unit 500 is configured to: control the working time, vibration frequency and / or vibration amplitude of the vibration unit 300 according to the light intensity reflected by the light detection device. Preferably, the light detection device can be an illuminance meter, a multi-parameter light environment monitor, a light sensor, etc.

[0093] According to a preferred embodiment, the vibration control system further includes an oxygen collection device for collecting the oxygen content in the fluid, and the control unit 500 is configured to: according to the oxygen content reflected by the oxygen collection device, control the working time, vibration frequency and / or vibration amplitude of the vibration unit 300. Preferably, the oxygen collection device can be a dissolved oxygen sensor, a multi-parameter water quality monitor, etc.

[0094] According to a preferred embodiment, the vibration monitoring unit is arranged near the plant root or directly attached to the root to measure the actual vibration intensity of the root. Preferably, the vibration monitoring unit can be a vibration sensor.

[0095] The control unit 500 is respectively connected to the concentration monitoring unit, the pathogen monitoring unit, the oxygen collection device and the vibration monitoring unit by signals to receive data collected from each device or sensor.

[0096] According to a preferred embodiment, the movement directions of the first vibration units 310 at adjacent levels are opposite.

[0097] This embodiment also provides a specific structure of the slide rail 200 and the vibration unit 300 on the three-dimensional cultivation frame.

[0098] The outer side of the planting trough 110 of each layer of the cultivation rack is provided with a slide rail 200, and the slide rail 200 is arranged parallel to the length direction of the planting trough 110. The first vibration unit 310 is installed on the slide rail 200 of the outer side. The first vibration unit 310 moves on the slide rail 200 in a specified moving direction and moving speed according to the instruction of the control unit 500, and works at a specified vibration frequency and vibration amplitude. The vibration unit 300 slides on the slide rail 200, and the vibration generated by it can promote the flow of nutrient solution 113 or other liquids in the planting trough 110, thereby increasing the dissolved oxygen content of the roots and promoting the absorption of nutrients by the plant roots. The bottom plate of the inner part of the planting trough 110 of each layer of the cultivation rack is provided with a slide rail 200, and the second vibration unit 320 is installed on the slide rail 200 on the inner bottom plate. The second vibration unit 320 moves on the slide rail 200 in a specified moving direction and moving speed according to the instruction of the control unit 500, and works at a specified vibration frequency and vibration amplitude.

[0099] The slide rail 200 can be made of high-strength aluminum alloy, stainless steel or carbon steel, and the surface is anodized or coated to resist corrosion and wear. The slide rail 200 is usually a "T"-shaped or "U"-shaped cross-section to provide stable support and guidance. The length of the slide rail 200 matches the length of each layer of the three-dimensional cultivation frame to ensure that the vibration generated by the vibration unit 300 can cover the entire layer of planting troughs 110. Preferably, the slide rail 200 is fixed to both sides of the three-dimensional cultivation frame by a bracket, and the bracket can be installed on the three-dimensional cultivation frame by welding or bolting. The rolling surface of the slide rail 200 is smooth and burr-free to reduce friction and wear. The slide rail 200 of the second vibration unit 320 is preferably designed to be "S"-shaped, which covers the bottom plate inside the planting trough 110 of each layer. The slide rail 200 of the second vibration unit 320 can also be designed to be "U"-shaped, such as Figure 7 shown.

[0100] The vibration unit 300 includes a vibration source 301 (such as a piezoelectric ceramic or an electromagnetic driver), a vibration head 302, a frequency controller, an amplitude regulator, a control system integrated with a microprocessor or a computer system, a power supply (transformer, rectifier and voltage regulator) and a connecting line. The vibration source 301 converts electrical energy into mechanical energy. The vibration head 302 of the second vibration unit 320 directly contacts the fluid in the planting tank 110 to transfer the vibration energy to the roots of the plant. The frequency controller is used to adjust the vibration frequency generated by the vibration source 301. The amplitude regulator is used to adjust the amplitude of the vibration. The control system is used to control the opening and closing, moving direction, vibration frequency, vibration amplitude and working time of the vibration source 301. The connecting line is a cable and line connecting the vibration source 301, the control system and other electronic components. The vibration unit 300 can be connected to the power supply via a cable. The cable has sufficient flexibility to adapt to the pulling of the vibration unit 300 moving on the slide rail 200. The vibration unit 300 and the control unit 500 can be connected by wire or wirelessly. The vibration unit 300 also has a housing, which is used to protect the internal components from moisture, dust and other damages and is usually made of waterproof material.

[0101] A roller or slider 303 is installed at the bottom of the first vibration unit 310 (mechanical vibrator) or the second vibration unit 320 (ultrasonic vibrator). The roller or slider 303 contacts the inner side of the slide rail 200, thereby allowing the first vibration unit 310 or the second vibration unit 320 to move smoothly on the slide rail 200.

[0102] Preferably, when the vibration unit 300 needs to be fixed at a specific position, a locking mechanism (such as a clamp or a locking screw) can be used to fix it at a specific position of the slide rail 200.

[0103] Preferably, limiting blocks for guiding are arranged on both sides of the slide rail 200 to prevent the vibration unit 300 from deviating from a set direction when moving on the slide rail 200 .

[0104] Preferably, the connection structure between the slide rail 200 and the vibration unit 300 includes shock-absorbing and sound-insulating materials to reduce the impact of vibration on other parts of the cultivation rack and reduce noise. Example 2

[0105] This embodiment provides a vibration control method, which is implemented based on the vibration control system provided in Embodiment 1.

[0106] The vibration control method includes the following steps: S1, collecting plant types and plant growth data; S2, controlling the start timing, vibration frequency and vibration amplitude of the first vibration unit 310 and the second vibration unit 320 according to the plant types and plant growth stages to adapt to the growth needs of the plants. Example 3

[0107] This embodiment provides a multi-layer cultivation rack 100, such as Figure 2 As shown, the multi-layer cultivation rack 100 achieves the purpose of uniform distribution of the nutrient solution 113 and stimulation of plant growth through the vibration unit 300 and the slide rail 200 provided in the aforementioned embodiment.

[0108] The hydroponic cultivation frame includes a three-dimensional frame, a planting trough 110, a vibration unit 300, a slide rail 200, a light source 120, a water supply end 111 and a drainage end 112. The three-dimensional frame is configured into multiple levels. The three-dimensional frame is composed of a vertical support and a horizontal support structure, and this arrangement can disperse the weight. Preferably, different levels are separated by a support frame in the frame. Preferably, the layers can be connected by welding or clamps. Each level is equipped with a planting trough 110 or a cultivation container. The planting trough 110 or the cultivation container is used for plant growth. The planting trough 110 or the cultivation container contains a nutrient solution 113 or other liquids. Preferably, the planting trough 110 can be an independent unit. Preferably, the planting trough 110 is a connected design. The vibration unit 300 includes a mechanical vibrator and an ultrasonic vibrator.

[0109] In some implementations, the planting troughs 110 at the same level are configured as a connecting structure, and the slide rails 200 are arranged on the outer side of each layer of the planting troughs 110 along the length direction of the planting troughs 110. The mechanical vibrator is installed on the slide rails 200 on the outer side of the planting troughs 110. When the mechanical vibrator moves along the slide rails 200, the vibration generated by it can be transmitted from one end of the planting trough 110 to the nutrient solution 113 at the other end of the planting trough 110, and can also be transmitted to planting troughs 110 at different levels. The setting of the vibration unit 300 allows the nutrient-depleted layer and the nutrient-rich layer to mix with each other, thereby accelerating the mixing of the nutrient solution 113. The ultrasonic vibrator is arranged on the slide rail 200 on the bottom plate inside the planting trough 110, which can apply ultrasonic vibration to the nutrient solution 113 or plant roots at a specific position in a targeted manner.

[0110] The light source 120 is arranged on the top of each layer of the planting groove 110. The light source 120 can be an LED or other types of artificial light sources 120, which provide sufficient light for plant growth.

[0111] The water supply end 111 can be designed as a water supply pipe and a water pump. One end of the water supply pipe extends to the liquid storage part, and the other end of the water supply pipe extends to the planting trough 110 to transport the nutrient solution 113 in the liquid storage part to the planting trough 110. One end of the water supply pipe extending to the liquid storage part is connected to the water pump. The drainage end 112 is designed as a drainage hole and a drainage pipe. The drainage hole is connected to the drainage pipe, and the liquid to be discharged enters the drainage pipe from the drainage hole and is finally discharged to the collection part. The water supply pipe and the drainage pipe are respectively arranged at both ends of the planting trough 110.

[0112] It should be noted that the above-mentioned specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention. The equivalent replacement of the raw materials selected by the present invention, the addition of auxiliary components, the selection of specific methods, etc., also belong to the disclosure scope of the present invention and fall within the protection scope of the present invention. Those skilled in the art should understand that the description of the present invention and its drawings are illustrative and do not constitute limitations on the claims. The scope of protection of the present invention is defined by the claims and their equivalents. The description of the present invention contains multiple inventive concepts, such as "preferably" and "according to a preferred embodiment", which means that the corresponding paragraph discloses an independent concept, and the applicant reserves the right to file a divisional application based on each inventive concept.

Claims

1. A vibration control system, characterized in that: The vibration control system comprises: A multi-layer cultivation rack (100) having a plurality of layers of planting grooves (110) constituting a plant growth space; An image monitoring unit (400) for collecting plant species and plant growth data; a vibration unit (300) disposed on the planting trough (110) to provide a vibration effect, and a control unit (500) connected to the image monitoring unit (400) and the vibration unit (300) by signals, respectively, The vibration unit (300) comprises a first vibration unit (310) for providing mechanical vibration and a second vibration unit (320) for providing ultrasonic vibration. The control unit (500) is configured to: control the start timing, vibration frequency and vibration amplitude of the first vibration unit (310) and the second vibration unit (320) on each level of the planting trough (110) based on the type of plant and the growth stage of the plant; the vibration control system further comprises a vibration monitoring unit arranged in the planting trough (110) to monitor the actual vibration intensity of the plant; the control unit (500) is configured to: control the first vibration unit (310) on the planting trough (110) at different levels to start working in an alternating vibration mode based on the obtained actual vibration intensity of the plant, so as to control the vibration intensity of the plant within a preset range; A slide rail (200) for mounting a first vibration unit (310) is arranged on the outer side of the side wall of the planting trough (110), and a slide rail (200) for mounting a second vibration unit (320) is arranged on the bottom plate in the planting trough (110), so as to facilitate changing the action positions of the first vibration unit (310) and the second vibration unit (320). The vibration control system further comprises a concentration monitoring unit arranged at different positions in the planting trough (110) to monitor whether the nutrient solution (113) is evenly distributed, and a pathogen monitoring unit for detecting pathogens in the plant roots. The control unit (500) is configured to: when the concentration of the nutrient solution (113) at a specific position in the planting trough (110) is outside a preset concentration range and / or the concentration of plant root pathogens at a specific position in the planting trough (110) exceeds the upper limit of the pathogen concentration range, control the second vibration unit (320) to slide to a specific position and start working in a mode with a vibration frequency of 20 to 100 kHz and a vibration amplitude of 10 to 500 μm; at the same time, based on the actual vibration intensity of the plant collected by the vibration monitoring unit, adjust the vibration frequency of the first vibration unit (310) to 10 to 100 Hz and the vibration amplitude to 0 to 5 mm, so that the vibration generated together can effectively stimulate the plant.

2. The vibration control system according to claim 1, characterized in that: The control unit (500) is configured to control the vibration frequency and vibration amplitude of the first vibration unit (310) on the spaced planting grooves (110) to be greater than the first vibration unit (310) in the middle of the spaced planting grooves (110).

3. The vibration control system according to claim 2, characterized in that: The control unit (500) is configured to: when the second vibration unit (320) is operating at a specific position, control the first vibration unit (310) to move to a position away from the second vibration unit (320) to operate.

4. The vibration control system according to claim 1, characterized in that: The control unit (500) is configured to adjust the vibration frequency and / or vibration amplitude of the vibration unit (300) based on the growth data of the plant acquired by the image monitoring unit (400) when the plant grows under the preset vibration frequency and / or vibration amplitude conditions, so as to meet the growth requirements of the plant at different growth stages.

5. The vibration control system according to claim 1, characterized in that: The vibration control system further comprises a light detection device for collecting light parameters of a plant growth space, and the control unit (500) is configured to control the working time, vibration frequency and / or vibration amplitude of the vibration unit (300) according to the light intensity reflected by the light detection device.

6. The vibration control system according to claim 1, characterized in that: The vibration control system also includes an oxygen collection device for collecting the oxygen content in the fluid, and the control unit (500) is configured to control the working time, vibration frequency and / or vibration amplitude of the vibration unit (300) according to the oxygen content reflected by the oxygen collection device.

7. A vibration control method, which is implemented based on the vibration control system according to any one of claims 1 to 6, the method comprising the following steps: Collect plant species and plant growth data; The start-up timing, vibration frequency and vibration amplitude of the first vibration unit (310) and the second vibration unit (320) are controlled according to the type of plant and the growth stage of the plant to adapt to the growth requirements of the plant.

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