Algae cultivation light regulation device and control method

Abstract

The application provides an algae cultivation light regulation device and a control method, comprising a seedling raising room, a plurality of seedling raising pools for cultivating algae plants are arranged at equal intervals in the seedling raising room; a roof is arranged on the top of the seedling raising room and has a plurality of hollow grooves formed symmetrically in sequence; a light detection module is used for detecting and adjusting the light source in the seedling raising room, thereby facilitating the cultivation of the algae plants; an adjusting mechanism is used for winding a light intensity adjusting piece and adjusting the natural light intensity required by different algae plants; the light intensity adjusting piece comprises a first louver, a second louver, a third louver and a fourth louver connected in sequence. The application can monitor different states of the algae plants during growth, thereby controlling the motor to adjust the light control louver, and different light transmittance holes on the light control louver can correspond to algae plants in different growth periods.

Description

Technical Field

[0001] This invention relates to a light regulation device and control method for algae cultivation. Background Technology

[0002] Algae are a type of eukaryote (some are also prokaryotes, such as cyanobacteria) in the protist kingdom. They are mainly aquatic, lack vascular bundles, and can perform photosynthesis. They vary greatly in size, from single-celled flagellates as small as 1 micrometer in length to large brown algae reaching 60 meters in length. The cultivation sites and environments for algae are diverse, including outdoor cultivation and indoor container cultivation. Regarding outdoor cultivation, the inventors discovered that the roof of outdoor seedling rooms is simply a woven straw mat covered with glass. When adjusting the light intensity, a ladder is used to roll up the straw mat, allowing natural light to enter the seedling room. While this method achieves the desired effect, it is extremely inconvenient in practice. Furthermore, it cannot be effectively adjusted according to the growth cycle of the algae, potentially leading to the algae not receiving optimal light, resulting in slow growth and poor cultivation outcomes. Summary of the Invention

[0003] This invention provides a light regulation device and control method for algae cultivation, which can effectively solve the above-mentioned problems.

[0004] This invention is implemented as follows:

[0005] A light regulation device for algae cultivation, comprising

[0006] The seedling room contains several seedling pools for cultivating algae, which are arranged at equal intervals inside.

[0007] The roof, which is set on the top of the seedling room, has several symmetrically arranged hollow grooves;

[0008] A light detection module is used to detect and adjust the light source in the seedling room, thereby facilitating the cultivation of algae.

[0009] An adjustment mechanism is used to reel in the light intensity adjustment element and adjust the natural light intensity required by different algae; the light intensity adjustment element includes a first grid curtain, a second grid curtain, a third grid curtain, and a fourth grid curtain connected in sequence, wherein the light transmittance of the first grid curtain, the second grid curtain, the third grid curtain, and the fourth grid curtain decreases in that order;

[0010] The control unit is connected to the light detection module, the adjustment mechanism, and the light intensity adjustment component, respectively, and is used to control the adjustment mechanism to adjust the light intensity adjustment component according to the light intensity detected by the light detection module.

[0011] As a further improvement, the adjustment mechanism includes a first motor and a second motor fixedly mounted on the ceiling and at the edge of the hollowed-out slot opening, and each of the first motor and the second motor is symmetrically provided with a limiting bracket for limiting the rotation shaft on one side.

[0012] As a further improvement, the first curtain, the second curtain, the third curtain and the fourth curtain are respectively provided with a plurality of first holes, second holes, third holes and fourth holes that are equally spaced apart.

[0013] As a further improvement, the first, second, third, and fourth grid curtains are combined to form a light-controlling grid curtain. The light-controlling grid curtain is wound around the rotating shaft of the first and second motors. When the first and second motors are turned on, the light-controlling grid curtain will rotate with the rotating shaft to adjust different first, second, third, and fourth holes, thereby corresponding to the natural light intensity required by the algae.

[0014] As a further improvement, glass is provided in the hollowed-out groove, which is composed of a first glass, a second glass and a third glass.

[0015] As a further improvement, the light-controlling grille curtain has a distance A between it and the glass, wherein 0.5cm≤A≤4cm.

[0016] As a further improvement, the first, second, third, and fourth grid curtains are all made of specially coated fabric.

[0017] As a further improvement, the first hole, the second hole, the third hole, and the fourth hole have light transmittance Q, light transmittance W, light transmittance E, and light transmittance R, respectively, wherein the light transmittance Q is 85%-90%, the light transmittance W is 50%-80%, the light transmittance E is 10%-20%, and the light transmittance R is 8%-5%.

[0018] An automatic control method for cultivating kelp using an algae cultivation light regulation device includes the following steps:

[0019] The growth stages of kelp and their corresponding light intensities were obtained. The growth stages included the budding stage, the seedling stage, and the growth stage. The light intensity corresponding to the budding stage was 500 lm to 800 lm; the light intensity corresponding to the seedling stage was 1000 lm to 2000 lm; and the light intensity corresponding to the growth stage was 5000 lm to 8000 lm.

[0020] The real-time light intensity is obtained through the light detection module, and the light intensity adjustment component is wound up by the adjustment mechanism to meet the light intensity corresponding to the kelp production stage.

[0021] The beneficial effects of this invention are:

[0022] (1) The monitoring device and other structures provided by the present invention can monitor different states of algae growth, thereby controlling the motor to adjust the light-controlling grid curtain so that the different light transmittance holes on the light-controlling grid curtain can correspond to algae at different growth stages. This adapts to the light intensity of algae cultivation at different growth stages. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is the front view of the present invention.

[0025] Figure 2 This is a schematic diagram of the light intensity adjustment component of the present invention.

[0026] Explanation of icon numbers:

[0027] 1. Seedling room; 2. Seedling pool; 3. Light detection module; 4. Roof; 5. Perforated groove;

[0028] 6. Adjustment mechanism; 60. First motor; 61. Limit bracket; 62. Rotating shaft; 63. Second motor;

[0029] 7. Light intensity adjustment component; 70. First grid curtain; 700. First hole; 71. Second grid curtain; 710. Second hole; 72. Third grid curtain; 720. Third hole; 73. Fourth grid curtain; 730. Fourth hole. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Reference Figure 1-2 As shown, an algae cultivation light regulation device and control method include:

[0033] The seedling room 1 has several seedling ponds 2 for cultivating algae arranged at equal intervals inside;

[0034] The canopy 4 is located on the top of the seedling room 1 and has several symmetrically arranged perforated grooves 5.

[0035] The light detection module 3 is used to detect and adjust the artificial light source in the seedling room 1, thereby facilitating the cultivation of algae.

[0036] The adjustment mechanism 6 is used to roll up the light intensity adjustment component 7 and adjust the natural light intensity required by different algae; the light intensity adjustment component 7 includes a first grid curtain 70, a second grid curtain 71, a third grid curtain 72 and a fourth grid curtain 73 connected in sequence, and the light transmittance of the first grid curtain 70, the second grid curtain 71, the third grid curtain 72 and the fourth grid curtain 73 decreases in that order;

[0037] The control unit is connected to the light detection module 3, the adjustment mechanism 6 and the light intensity adjustment component 7 respectively, and is used to control the adjustment mechanism 6 to adjust the light intensity adjustment component 7 according to the light intensity detected by the light detection module 3.

[0038] The adjustment mechanism 6 includes a first motor 60 and a second motor 63 fixedly mounted on the ceiling 4 and located at the edge of the opening of the hollow groove 5. Each of the first motor 60 and the second motor 63 is symmetrically provided with a limiting bracket 63 for limiting the rotating shaft 62.

[0039] The first curtain 70, the second curtain 71, the third curtain 72 and the fourth curtain 73 are respectively provided with a plurality of equally spaced first holes 700, second holes 710, third holes 720 and fourth holes 730.

[0040] The first grid curtain 70, the second grid curtain 71, the third grid curtain 72, and the fourth grid curtain 73 are combined to form a light-controlling grid curtain. The light-controlling grid curtain is wound around the rotating shaft 62 of the first motor 60 and the second motor 63. When the first motor 60 and the second motor 63 are turned on, the light-controlling grid curtain will rotate with the rotating shaft 62 to adjust different first holes 700, second holes 710, third holes 720, and fourth holes 730, thereby corresponding to the natural light intensity required by algae.

[0041] The first hole 700, the second hole 710, the third hole 720, and the fourth hole 730 are circular, triangular, square, rectangular, hexagonal, or elliptical, etc. In one embodiment, to ensure the transmittance of natural light, preferably, the first hole 700, the second hole 710, the third hole 720, and the fourth hole 730 are all circular.

[0042] The perforated groove 5 contains glass, which is composed of a first glass, a second glass, and a third glass. To ensure more effective algal growth, as an embodiment of this invention, the first, second, and third glass can also be colored glass, insulated glass, or low-iron glass. Colored glass is used to regulate the quality and amount of light entering, insulated glass provides heat insulation, and low-iron glass serves as the inner layer to ensure high light transmittance. The above glass combination methods include, but are not limited to, two types. Appropriate glass can be selected and combined according to actual needs. Furthermore, a combination of three types of glass can provide diverse lighting and environmental control options, but careful evaluation and design are required based on the specific cultivation needs of the algae and environmental conditions.

[0043] A distance A is provided between the light-controlling grid curtain and the glass, where 0.5cm ≤ A ≤ 5cm. This is to avoid excessively high temperatures from natural light. Preferably, 2cm ≤ A ≤ 4cm. More preferably, 3cm ≤ A ≤ 4cm. In several embodiments, A is approximately 3.2cm, 3.5cm, and 3.8cm, respectively. In Embodiment 1 (A = 3.2cm): at this distance, the intensity of natural light is effectively controlled, ensuring sufficient light while avoiding heat damage to algae caused by excessive light. In practical applications, the algae exhibit good growth and increased photosynthetic efficiency. If the distance is too large, the light-controlling grid curtain will obstruct natural light and reduce light intensity. In Embodiment 2 (A = 3.5cm): a distance A of 3.5cm provides a mild light environment for the algae while maintaining a suitable temperature range. At this distance, the growth rate and biomass of the algae both reach the expected targets. Example 3 (A=3.8cm): A spacing of 3.8cm was chosen as the distance A to explore the heat insulation and light control effects of the light-controlling grille curtain at a larger spacing. Experimental results showed that even at a larger spacing, the healthy growth of algae could still be maintained through precise light control management. More preferably, A is approximately 3.5cm. This is because, based on the algae growth data in the three examples, spacings A of 3.2cm, 3.5cm, and 3.8cm all provided suitable growth environments. However, a spacing of 3.5cm showed the optimal balance after comprehensively considering light intensity, temperature control, and ease of maintenance. Furthermore, if the spacing is too small, the light-controlling grille curtain and the glass will lack an air layer, failing to provide heat insulation and potentially increasing the intensity of natural light, thus affecting algae growth. Furthermore, the reserved spacing A also ensures that the light-controlling grille curtain and the glass are easy to clean and maintain.

[0044] The first curtain 70, the second curtain 71, the third curtain 72, and the fourth curtain 73 are all made of specially coated fabric. Specifically, the specially coated fabric is made by coating one or more layers of polymer materials with special functions onto a base fabric, such as UV-resistant coating, waterproof coating, or stain-resistant coating, thereby improving the outdoor applicability and durability of the first curtain 70, the second curtain 71, the third curtain 72, and the fourth curtain 73.

[0045] The first hole 700, the second hole 710, the third hole 720 and the fourth hole 730 have light transmittance Q, light transmittance W, light transmittance E and light transmittance R respectively, wherein the light transmittance Q is 85%-90%, the light transmittance W is 50%-80%, the light transmittance E is 10%-20% and the light transmittance R is 8%-5%.

[0046] This invention further provides an automatic control method for cultivating kelp using an algae cultivation light regulation device, comprising the following steps:

[0047] The growth stages of kelp and their corresponding light intensities were obtained. The growth stages included the budding stage, the seedling stage, and the growth stage. The light intensity corresponding to the budding stage was 500 lm to 800 lm; the light intensity corresponding to the seedling stage was 1000 lm to 2000 lm; and the light intensity corresponding to the growth stage was 5000 lm to 8000 lm.

[0048] The light intensity is obtained in real time by the light detection module 3, and the light intensity adjustment component 7 is wound up by the adjustment mechanism 6 to meet the light intensity corresponding to the kelp production stage.

[0049] It should be noted that in this invention, the setting of light transmittance is based on the study of the light requirements of kelp under normal growth conditions. As a photosynthetic organism, kelp has specific requirements for light intensity. Under normal weather conditions, the growth environment of kelp requires a specific light intensity to ensure the effective performance of its photosynthesis.

[0050] Regarding the growth of kelp, the following explanation is provided in this case:

[0051] Sprouting stage: Kelp has a relatively low light requirement during the sprouting stage. In this invention, the light transmittance of the fourth grid curtain 73 is set to 8%-5%, and the light intensity needs to be maintained at 500lm to 800lm to promote the balanced development of the buds and to ensure that the kelp can still get adequate light during periods of weak light, such as in the morning or evening.

[0052] Seedling stage: As kelp enters the seedling stage, the demand for light increases. The light transmittance of the third grid curtain 72 is set to 10%-20%, and the light intensity needs to be increased to 1000lm to 2000lm to support the rapid growth of seedlings. At the same time, it can also adapt to the light changes at different times of the day.

[0053] Growth period: During the growth period, kelp requires strong light to support rapid growth. The light transmittance of the second grid curtain 71 is set to 50%-80% to regulate the light intensity during the midday hours when the sun is strong. If the light transmittance of the second grid curtain 71 cannot meet the growth intensity of the kelp during the growth period, the light intensity regulating component 7 can be adjusted by the control unit through the adjustment mechanism 6 and rotated to the first grid curtain 70 to increase the light transmittance to 85%-90%. The light intensity needs to reach 5000lm to 8000lm to maintain the healthy growth of kelp and thus meet the growth requirements of kelp.

[0054] This device automatically adjusts the light intensity to ensure that kelp receives suitable light conditions at each stage of its growth, thereby improving aquaculture efficiency and kelp quality.

[0055] Furthermore, under special weather conditions, such as continuous cloudy days, heavy rain, or high ultraviolet radiation, the light requirements of kelp may differ from those under normal weather conditions, as follows:

[0056] Example 1: Continuous cloudy days

[0057] S1: The light detection module 3 detected that the natural light intensity was consistently lower than the minimum light intensity required for kelp germination.

[0058] S2: The control unit controls the adjustment mechanism to adjust the grid curtain to the first grid curtain 70 to meet the kelp's light requirements;

[0059] S3: When the light intensity transmitted through the first grid curtain 70 is insufficient to meet the light requirements of the kelp, the control unit activates an artificial light source to supplement the insufficient light.

[0060] S4: Based on the feedback from the light detection module 3, the control unit adjusts the brightness of the artificial light source to ensure that the total light intensity reaches the target value during the germination period;

[0061] S5: Under continuous cloudy conditions, the control unit adjusts the opening and closing degree of the light-controlling grid curtain to balance the total light intensity of natural light and artificial light sources;

[0062] S6: If the real-time light intensity is higher than the target value, the control unit will adjust the third grid curtain 73 and the fourth grid curtain 74 to reduce the light transmittance and at the same time turn off the artificial light source.

[0063] Example 2: Heavy Rain Weather

[0064] S1: During the rainstorm, the light detection module 3 detected a sharp change in light intensity;

[0065] S2: The control unit responds quickly and adjusts the opening and closing degree of the light-controlling grille curtain to adapt to rapidly changing lighting conditions;

[0066] S3: If heavy rain causes a sharp drop in natural light intensity, the control unit can increase the brightness of artificial light sources to maintain a stable total light intensity.

[0067] S4: After the rainstorm, the control unit gradually adjusts the light-controlling grille curtain to restore the normal light control mode.

[0068] Example 3: High ultraviolet radiation

[0069] S1: The light detection module 3 detected that the intensity of ultraviolet radiation exceeded the preset safety threshold;

[0070] S2: After receiving the signal, the control unit immediately adjusts the fourth grid curtain 74 to the lowest light transmittance to reduce the damage of ultraviolet rays to the kelp.

[0071] S3: Simultaneously, the control unit activates the shading system (not shown in the diagram) or uses a blind with a UV-resistant coating to provide additional protection;

[0072] S4: The control unit continuously monitors the ultraviolet radiation intensity and adjusts other screens as needed to ensure that the kelp grows under safe light conditions.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A light regulation device for algae cultivation, characterized in that, include The seedling room (1) has several seedling ponds (2) for cultivating algae arranged at equal intervals inside. The roof (4) is located on the top of the seedling room (1) and has several symmetrically arranged hollow grooves (5). The light detection module (3) is used to detect and adjust the artificial light source in the seedling room (1) to facilitate the cultivation of the algae. An adjustment mechanism (6) is used to reel in the light intensity adjustment component (7) and adjust the natural light intensity required by different algae; the light intensity adjustment component (7) includes a first grid curtain (70), a second grid curtain (71), a third grid curtain (72) and a fourth grid curtain (73) connected in sequence, with the light transmittance of the first grid curtain (70), the second grid curtain (71), the third grid curtain (72) and the fourth grid curtain (73) decreasing in that order; The hollow groove (5) is provided with glass, which is composed of a first glass, a second glass and a third glass; the first glass, the second glass and the third glass are respectively low iron glass, UV-resistant glass and transparent glass. The three sets of glass are combined in sequence. The low iron glass as the outer layer can improve the overall light transmittance, the UV-resistant glass as the middle layer can filter out the ultraviolet rays that are harmful to algae, and the transparent glass as the inner layer can maintain the internal light environment, thereby providing the light environment required for cultivating algae and optimizing the light environment. The first grid curtain (70), the second grid curtain (71), the third grid curtain (72) and the fourth grid curtain (73) are combined to form a light-controlling grid curtain; the light-controlling grid curtain and the glass have a distance A, where 0.5cm≤A≤4cm; The control unit is connected to the light detection module (3), the adjustment mechanism (6) and the light intensity adjustment component (7) respectively, and is used to control the adjustment mechanism (6) to adjust the light intensity adjustment component (7) according to the light intensity detected by the light detection module (3).

2. The algae cultivation light regulation device according to claim 1, characterized in that, The adjustment mechanism (6) includes a first motor (60) and a second motor (63) fixedly installed on the ceiling (4) and at the edge of the opening of the hollow groove (5), and a limiting bracket (61) for limiting the rotating shaft (62) is symmetrically provided on one side of the first motor (60) and the second motor (63).

3. The algae cultivation light regulation device according to claim 1, characterized in that, The first curtain (70), the second curtain (71), the third curtain (72) and the fourth curtain (73) are respectively provided with a plurality of first holes (700), second holes (710), third holes (720) and fourth holes (730) that are equally spaced.

4. The algae cultivation light regulation device according to claim 2, characterized in that, The light-controlling grid curtain is wound around the shaft (62) of the first motor (60) and the second motor (63). When the first motor (60) and the second motor (63) are turned on, the light-controlling grid curtain will rotate with the shaft (62) to adjust different first holes (700), second holes (710), third holes (720) and fourth holes (730), thereby corresponding to the natural light intensity required by the algae.

5. The algae cultivation light regulation device according to claim 3, characterized in that, The first grid curtain (70), the second grid curtain (71), the third grid curtain (72) and the fourth grid curtain (73) are all made of specially coated fabric.

6. The algae cultivation light regulation device according to claim 3, characterized in that, The first hole (700), the second hole (710), the third hole (720) and the fourth hole (730) have light transmittance Q, light transmittance W, light transmittance E and light transmittance R, respectively, wherein the light transmittance Q is 85%-90%, the light transmittance W is 50%-80%, the light transmittance E is 10%-20% and the light transmittance R is 8%-5%.

7. An automatic control method for cultivating kelp using an algae cultivation light regulation device as described in any one of claims 1-6, characterized in that, Includes the following steps: The growth stages of kelp and their corresponding light intensities were obtained. The growth stages included the budding stage, the seedling stage, and the growth stage. The light intensity corresponding to the budding stage was 500 lm to 800 lm; the light intensity corresponding to the seedling stage was 1000 lm to 2000 lm; and the light intensity corresponding to the growth stage was 5000 lm to 8000 lm. The real-time light intensity is obtained through the light detection module (3), and the light intensity adjustment component (7) is wound up by the adjustment mechanism (6) to meet the light intensity corresponding to the kelp production stage.

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