Plant illumination compensation system and method

Abstract

The invention is suitable for the technical field of planting, and provides a plant illumination compensation system and method.The plant illumination compensation system comprises a spectrum detection unit and a plant light supplementing unit; the spectrum detection unit comprises a spectrum detection probe, a spectrum detection control unit and a signal transmitting module; the plant light supplementing unit comprises a dimming control module, a light emitting module and a signal receiving module, wherein the light emitting module and the signal receiving module are electrically connected with the dimming control module. The spectrum detection unit collects illumination data of an illuminated surface of a plant in real time, and the plant light supplementing unit analyzes the illumination data collected by the spectrum detection unit in real time according to a growth cycle, a growth stage, an illumination cycle, a light compensation point and a light saturation point of the plant, and adaptively adjusts output of the light emitting module. Real-time accurate automatic adjustment can be carried out, illumination in the plant growth process is controlled between a light compensation point and a light saturation point, it can be guaranteed that the plant growth requirement is met, and meanwhile electric energy consumption can be saved.

Description

Technical Field

[0001] The invention belongs to the field of planting technology, and in particular relates to a plant lighting compensation system and method. Background Art

[0002] Light is a key factor in plant growth. Plant yield and nutrient content depend on plant photosynthesis. In a controlled environment for plant production (sheds, greenhouses, plant factories, etc.), a combination of sunlight and plant light supplementation is usually used. There are two important parameter indicators for light demand during plant growth: light compensation point and light saturation point. Light compensation point: the light intensity value when the photosynthetic intensity and respiratory intensity of the plant are equal; light saturation point: the photosynthetic intensity of the plant increases with the increase of light intensity. When the light intensity rises to a certain value, the photosynthetic intensity no longer continues to increase.

[0003] At present, the illuminance value of greenhouse planting is mainly based on the illuminance value of no sunlight or relying solely on supplementary lighting for continuous lighting. When there is sunlight, the power and luminous intensity of the lamp remain unchanged. At this time, the illuminance value received by the plant has far exceeded the light saturation point, which greatly wastes electric energy and even causes light pollution. Excessive light sometimes has a negative impact on plant growth. The traditional method is manual adjustment. The operator holds a spectrometer for manual testing and adjusts the brightness of the lamp according to the specific measurement data. It is impossible to perform accurate automatic adjustment, which is easy to cause waste of electric energy and even affects plant growth due to unsatisfactory adjustment of the brightness of the lamp. Therefore, in order to solve the above problems, a plant lighting compensation system and method are proposed. The illuminance value during plant growth is controlled between the light compensation point and the light saturation point, which can not only ensure the normal growth of plants, but also save the electric energy consumption of plant supplementary lighting, so as to achieve the best effect of electric energy utilization. Summary of the invention

[0004] The present invention provides a plant lighting compensation system and method, aiming to solve the problem that the light intensity cannot be automatically adjusted in greenhouse planting, which wastes electric energy and even affects the growth of plants.

[0005] The present invention is implemented as follows: a plant lighting compensation system includes a spectrum detection unit and a plant light compensation unit;

[0006] The spectrum detection unit is arranged on the illuminated surface of the plant growth, and the spectrum detection unit comprises a spectrum detection probe, a spectrum detection control unit and a signal transmission module, the spectrum detection control unit is electrically connected to the spectrum detection probe and the signal transmission module, the spectrum detection probe collects the illumination data of the illuminated surface and transmits it to the spectrum detection control unit, and the spectrum detection control unit processes the illumination data and sends it through the signal transmission module;

[0007] The plant fill light unit includes a dimming control module and a light emitting module and a signal receiving module electrically connected to the dimming control module. The dimming control module receives the light data sent by the spectrum detection control unit through the signal receiving module. The dimming control module analyzes the light data according to the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant, adaptively adjusts the fill light data output by the light emitting module, and controls the light emitting module to compensate for the light according to the growth needs of the plant.

[0008] Preferably, the illumination data includes light intensity, spectrum and photon flux data of the illuminated surface, the light intensity data includes the light intensity in the space, the spectrum data includes the wavelength, intensity, peak value and spectral line shape of the light, and the photon flux data includes photon flux density and ratio.

[0009] Preferably, the fill light data includes light quantum flux and ratio of different wavelengths output by the light emitting module.

[0010] Preferably, the spectrum detection unit further includes a photovoltaic panel and a power storage module, wherein the power storage module is electrically connected to the spectrum detection control unit and the photovoltaic panel, and the photovoltaic panel is used for photovoltaic power generation and stores electrical energy in the power storage module.

[0011] Preferably, it further comprises an external control device, the external control device performs data communication with the plant light supplement unit, the external control device is used to set the working mode and working parameters of the plant light supplement unit, and group and match the plant light supplement unit with the spectrum detection unit;

[0012] A plant lighting compensation method comprises the following steps:

[0013] Set the plant types and planting data, group and match the spectrum detection units and plant fill light units according to the planting data, and adaptively adjust the positions of the spectrum detection units and plant fill light units;

[0014] Acquire the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant according to the plant species, pre-set the required working mode and working parameters for the plant light supplement unit, and start the plant light supplement unit;

[0015] The light data of the illuminated surface of the plant is collected through the spectrum detection unit and transmitted to the plant fill light unit. The plant fill light unit obtains the light data, performs data analysis and compares the pre-set working mode and working parameters to determine the working mode and working parameters of the plant fill light unit;

[0016] Dimming data is generated according to the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant, and the working mode of the plant fill light unit, and the fill light data output by the plant fill light unit is controlled according to the dimming data, and the plant fill light unit compensates the light for the plants.

[0017] Preferably, it also includes: generating a fitting change curve of the fill light data by linear interpolation according to the generated dimming data and the current working parameters of the plant fill light unit, and the plant fill light unit smoothly changes its output fill light data according to the fitting change curve.

[0018] Preferably, it also includes: in the process of the plant fill light unit changing the ambient light data according to the dimming data output and compensating the light for the plants, collecting light data in real time, judging whether the fill light data meets the growth needs of the plant in the current growth stage according to the real-time light data, and performing adaptive adjustment.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention performs wireless signal transmission through a spectrum detection unit and a plant light supplement unit, and the spectrum detection unit collects the illumination data of the illuminated surface of the plant in real time. The plant light supplement unit performs data analysis on the illumination data collected in real time by the spectrum detection unit according to the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant, and adaptively adjusts the output of the light emitting module, so that the spectrum detection unit and the plant adjustment unit cooperate to form an adaptive compensation system for plant lighting compensation, and the plant light supplement unit plays a role in regulating and supplementing the illumination of the plant, and can perform real-time and accurate automatic adjustment without manual adjustment, and control the illumination in the process of plant growth between the light compensation point and the light saturation point, which can not only ensure that the growth requirements of the plant are met, but also save power consumption, and achieve the best effect of power utilization; BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the system composition of the present invention;

[0022] Figure 2 It is a schematic diagram of the application structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the spectrum detection unit in the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the plant light supplement unit in the present invention.

[0025] In the figure: 1. Spectral detection unit; 11. Spectral detection probe; 12. Spectral detection control unit; 13. Photovoltaic panel; 14. Power storage module; 15. Signal transmission module; 16. Bottom cover; 17. Ground plug; 18. Upper cover;

[0026] 2. Plant supplementary lighting unit; 21. Dimming control module; 22. Dimming power supply; 23. Lighting module; 24. Signal receiving module; 25. Lens; 26. Lamp body; 27. End cover; 28. Top cover;

[0027] 3. External control equipment. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] Example 1

[0030] See also Figure 1-2 ,The present invention provides a technical solution: a plant lighting compensation system, comprising a spectrum detection unit 1 and a plant light supplement unit 2;

[0031] The spectrum detection unit 1 is arranged on the illuminated surface of the plant growth. Specifically, the spectrum detection unit 1 includes a spectrum detection probe 11, a spectrum detection control unit 12 and a signal transmission module 15. The spectrum detection control unit 12 is electrically connected to the spectrum detection probe 11 and the signal transmission module 15. Specifically, the signal transmission module 15 is connected to the spectrum detection control unit 12 via a data line. The spectrum detection probe 11 collects the illumination data of the illuminated surface and transmits it to the spectrum detection control unit 12. The spectrum detection control unit 12 processes the illumination data and sends it via the signal transmission module 15.

[0032] The plant light-filling unit 2 includes a dimming control module 21, a light-emitting module 23 and a signal receiving module 24 electrically connected to the dimming control module 21. Specifically, the signal receiving module 24 is connected to the dimming control module 21 through a data line. The light-emitting module 23 adopts a full-spectrum (5000K) LED lamp bead board, which includes the pigment absorption of the full stage of plant photosynthesis. The dimming control module 21 receives the light data sent by the spectrum detection control unit 12 through the signal receiving module 24. The dimming control module 21 analyzes the light data according to the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant, adaptively adjusts the light-filling data output by the light-emitting module 23, and controls the light-emitting module 23 to compensate for the light according to the growth needs of the plant.

[0033] That is, wireless signal transmission can be carried out through the spectrum detection unit 1 and the plant fill light unit 2, and the spectrum detection unit 1 collects the illumination data of the illuminated surface of the plant in real time. The plant fill light unit 2 analyzes the illumination data collected in real time by the spectrum detection unit 1 according to the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant, and adaptively adjusts the output of the light-emitting module 23, so that the spectrum detection unit 1 and the plant adjustment unit 2 cooperate to form an adaptive compensation system for plant lighting compensation, and the plant fill light unit 2 plays a role in regulating and supplementing the illumination of the plant, and can perform real-time and accurate automatic adjustment without manual adjustment, and control the illumination of the plant during growth between the light compensation point and the light saturation point, which can not only ensure that the growth needs of the plant are met, but also save electricity consumption and achieve the best effect of electricity utilization.

[0034] Furthermore, the illumination data includes the light intensity, spectrum and photon flux data of the illuminated surface. The light intensity data includes the light intensity in the space. The spectrum data includes the wavelength, intensity, peak value and spectral line shape of the light. The photon flux data includes the photon flux density and ratio.

[0035] Furthermore, the fill light data includes light quantum fluxes and ratios of different wavelengths output by the light emitting module 23 .

[0036] Example 2

[0037] See also Figure 1-4 , based on Example 1, the difference is that:

[0038] Furthermore, the spectrum detection unit 1 also includes a photovoltaic panel 13 and a power storage module 14. The power storage module 14 is electrically connected to the spectrum detection control unit 12 and the photovoltaic panel 13. Specifically, the photovoltaic panel 13 is connected to the spectrum detection control unit 12 through a DC power line, and the power storage module 14 is fixed on the main board of the spectrum detection control unit 12 by welding. The photovoltaic panel 13 is used for photovoltaic power generation and stores electric energy in the power storage module 14. The photovoltaic panel 13 can generate electricity by using the light it receives to charge the power storage module 14. The power storage module 14 supplies power to the spectrum detection control unit 12 and the signal transmission module 15. The photovoltaic panel 13 can cooperate with the power storage module 14 to power the spectrum detection unit 1. When the spectrum detection unit 1 receives the detection light, it can use the light to charge and store energy in the power storage module 14 through the photovoltaic panel 13, thereby achieving self-sufficiency, so that the spectrum detection unit 1 is maintenance-free and more convenient to use.

[0039] The spectrum detection unit 1 further includes a bottom cover 16, and the spectrum detection control unit 12 and the power storage module 14 are arranged on the top surface of the bottom cover 16. Specifically, the spectrum detection control unit 12 is arranged on the bottom cover 16 by screws, and the bottom surface of the bottom cover 16 is matched with a ground plug 17. Specifically, a countersunk hole is formed on the bottom surface of the bottom cover 16, and the top of the ground plug 17 is matched with the countersunk hole on the bottom surface of the bottom cover 16. The spectrum detection unit 1 is placed at a position to be detected through the ground plug 17. Specifically, the ground plug 17 is inserted into the planting soil to fix the entire spectrum detection unit 1;

[0040] Among them, the spectrum detection unit 1 also includes an upper cover 18 arranged above the bottom cover 16, and the bottom cover 16 and the upper cover 18 cooperate to encapsulate the spectrum detection control unit 12 and the power storage module 14. The spectrum detection probe 11, the photovoltaic panel 13 and the signal transmission module 15 are detachably connected to the outer wall of the upper cover 18. Specifically, the spectrum detection probe 11 is arranged at the top of the upper cover 18, and the top of the upper cover 18 is formed with inclined surfaces for setting the photovoltaic panel 13. The signal transmission module 15 is arranged at the bottom of the upper cover 18. The spectrum detection control unit 12 and the power storage module 14 can be encapsulated by cooperating with the upper cover 18 and the bottom cover 16, and the spectrum detection probe 11, the photovoltaic panel 13 and the signal transmission module 15 are positioned and installed by the upper cover 18 to form protection for each device and improve structural stability.

[0041] Example 3

[0042] See also Figure 1-4 , based on Example 1 or 2, the difference is that:

[0043] Furthermore, an external control device 3 is included. Specifically, the external control device 3 includes a mobile terminal such as a mobile phone and a fixed terminal such as a computer. The external control device 3 performs data communication with the plant fill light unit 2. Specifically, the external control device 3 performs signal transmission with the signal receiving module 24. The external control device 3 is used to set the working mode and working parameters of the plant fill light unit 2, and group and match the plant fill light unit 2 with the spectrum detection unit 1. Specifically, a group is set by the external control device 3, and the group includes a plurality of plant fill light units 2 and a plurality of spectrum detection units 1. For example, group one is matched with 5 plant fill light units 2 and 1 spectrum detection unit 1. Then, the 5 plant fill light units 2 only recognize and receive the light data sent by the spectrum detection unit 1 matched therewith, so that the plant fill light unit 2 is remotely and wirelessly controlled by the external control device 3.

[0044] Among them, the working modes include natural simulation and efficient fill light. The natural simulation working mode is that the plant fill light unit 2 simulates the illumination, spectrum and light cycle of natural light to provide a growth environment simulating natural light for plants; the efficient fill light working mode is based on the growth cycle preset by the plant species, and the plant fill light unit 2 fits the light intensity, spectrum and light cycle under the preset growth cycle according to the light compensation point and light saturation point;

[0045] Among them, the working parameters include light intensity, spectrum and photon flux data as well as photoperiod.

[0046] Example 4

[0047] See also Figure 1-4 , based on Example 1, the difference is that:

[0048] Among them, the plant fill light unit 2 also includes a dimming power supply 22 electrically connected to the dimming control module 21, and the dimming power supply 22 is electrically connected to the light-emitting module 23. Specifically, the dimming control module 21 is connected to the dimming power supply 22 through a dimming signal line, and the dimming power supply 22 is connected to the light-emitting module 23 through a DC power line. The dimming power supply 22 is connected to the AC input end through an AC power line for power supply. The dimming power supply 22 controls the output of the light-emitting module 23 according to the dimming data sent by the dimming control module 21. Specifically, the dimming control module 21 outputs a dimming signal according to the generated dimming data, and transmits the dimming signal to the dimming power supply 22. The dimming power supply 22 adjusts the output DC current through the dimming signal and outputs it to the light-emitting module 23, thereby changing the fill light data of the light-emitting module 23;

[0049] The spectrum detection unit 1 and the plant light supplement unit 2 communicate data via wireless signal transmission, and the plant light supplement unit 2 communicates data with the external control device 3 via wireless signal transmission. The signal transmission method includes but is not limited to Bluetooth, WiFi, 4G, and 5G. Wireless signal transmission avoids the need to build a dedicated wired signal transmission network, which is convenient for maintenance.

[0050] The plant light supplement unit 2 further includes a lamp body 26, a light emitting module 23 is arranged in a cavity at the bottom of the lamp body 26, a dimming control module 21 and a dimming power supply 22 are arranged in a cavity at the top of the lamp body 26, and end covers 27 are arranged at both ends of the lamp body 26. Specifically, the end covers 27 are detachably connected to the lamp body 26 by bolts, and the signal receiving module 24 is fixed to the end covers 27 by buckles;

[0051] The bottom end of the lamp body 26 is provided with a lens 25 for encapsulating the light emitting module 23. Specifically, the lens 25 is fixedly connected to the lamp body 26 by a clamping position. The lens 25 cooperates with the light emitting module 23. The lens 25 can focus the light source of the light emitting module 23 to enhance the light intensity.

[0052] A top cover 28 is provided at the top of the lamp body 26. Specifically, the top cover 28 is connected to the lamp body 26 by means of a structural slide groove. The top cover 28 is used to encapsulate the dimming control module 21 and the dimming power supply 22.

[0053] The end cover 27 is detachably connected with a hanging ring, and the plant supplementary lighting unit 2 is connected to hanging accessories such as a hanging rod, a hanging chain, etc. through the hanging ring, and the hanging ring is connected to the end cover 27 by means of a tooth pattern.

[0054] See also Figure 1 and 2 The present invention also provides a technical solution: a plant lighting compensation method, applied to the above-mentioned plant lighting compensation system, comprising the following steps:

[0055] S1, set the plant type and planting data through the external control device 3, and group and match the spectrum detection unit 1 and the plant fill light unit 2 according to the planting data. Specifically, obtain the codes of the spectrum detection unit 1 and the plant fill light unit 2 through the external control device 3, group and bind the spectrum detection unit 1 and the plant fill light unit 2, and adaptively adjust the positions of the spectrum detection unit 1 and the plant fill light unit 2. Specifically, the plant fill light unit 2 can be adaptively adjusted, and the adaptive adjustment method includes light intensity, light wavelength, light spectrum ratio, light height, light projection direction, light output angle and other methods that can affect the illumination data of the illuminated surface;

[0056] S2, obtaining the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant according to the plant species through the external control device 3, and sending the light compensation point and light saturation point data to the plant fill light unit 2, presetting the required working mode and working parameters for the plant fill light unit 2 through the external control device 3, and starting the plant fill light unit 2;

[0057] S3, collecting illumination data of the illuminated surface of the plant through the spectrum detection unit 1, and transmitting it to the plant fill light unit 2. Specifically, the spectrum detection probe 11 converts the detected optical signal of the illuminated surface into an electrical signal and transmits it to the spectrum detection control unit 12. After being processed by the spectrum detection control unit 12, it is sent to the plant fill light unit 2 via the signal transmission module 15. The plant fill light unit 2 obtains the illumination data, performs data analysis, and compares the pre-set working mode and working parameters to determine the working mode and working parameters of the plant fill light unit 2.

[0058] S4, generates dimming data according to the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant, and the working mode of the plant fill light unit 2, and controls the fill light data output by the plant fill light unit 2 according to the dimming data, and the plant fill light unit 2 compensates for the lighting for the plants. Specifically, the dimming control module 21 outputs a dimming signal according to the generated dimming data, and transmits the dimming signal to the dimming power supply 22. The dimming power supply 22 adjusts the output DC current according to the dimming signal and outputs it to the light-emitting module 23, thereby changing the fill light data of the light-emitting module 23 to compensate for the lighting for the plants.

[0059] S5, generating a fitting change curve of the fill light data by linear interpolation according to the generated dimming data and the current working parameters of the plant fill light unit 2, and the plant fill light unit 2 smoothly changes the fill light data outputted by it according to the fitting change curve;

[0060] S6, after the plant fill light unit 2 changes the ambient light data according to the dimming data output and compensates the light for the plants, it collects light data in real time, determines whether the fill light data meets the growth needs of the plant's current growth stage based on the real-time light data, and performs adaptive adjustments.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plant lighting compensation system, characterized in that: It comprises a spectrum detection unit (1) and a plant light supplement unit (2); The spectrum detection unit (1) is arranged on the illuminated surface of the plant growth, the spectrum detection unit (1) comprises a spectrum detection probe (11), a spectrum detection control unit (12) and a signal transmission module (15), the spectrum detection control unit (12) is electrically connected to the spectrum detection probe (11) and the signal transmission module (15), the spectrum detection probe (11) collects illumination data of the illuminated surface and transmits it to the spectrum detection control unit (12), and the spectrum detection control unit (12) processes the illumination data and transmits it through the signal transmission module (15); The plant light-filling unit (2) comprises a dimming control module (21), a light-emitting module (23) and a signal receiving module (24) electrically connected to the dimming control module (21); the dimming control module (21) receives light data sent by a spectrum detection control unit (12) via the signal receiving module (24); the dimming control module (21) performs data analysis on the light data according to the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant, adaptively adjusts the light-filling data output by the light-emitting module (23), and controls the light-emitting module (23) to compensate for light according to the growth requirements of the plant.

2. A plant lighting compensation system as claimed in claim 1, characterized in that: The illumination data includes the light intensity, spectrum and photon flux data of the illuminated surface. The light intensity data includes the light intensity in the space. The spectrum data includes the wavelength, intensity, peak value and spectral line shape of the light. The photon flux data includes the photon flux density and ratio.

3. A plant lighting compensation system as claimed in claim 2, characterized in that: The fill light data includes light quantum fluxes and ratios of different wavelengths output by the light emitting module (23).

4. A plant lighting compensation system as claimed in claim 1, characterized in that: The spectrum detection unit (1) further comprises a photovoltaic panel (13) and a power storage module (14); the power storage module (14) is electrically connected to the spectrum detection control unit (12) and the photovoltaic panel (13); the photovoltaic panel (13) is used for photovoltaic power generation and storing electrical energy in the power storage module (14).

5. A plant lighting compensation system as claimed in claim 1, characterized in that: It also comprises an external control device (3), the external control device (3) performs data communication with the plant light supplement unit (2), the external control device (3) is used to set the working mode and working parameters of the plant light supplement unit (2), and to group and match the plant light supplement unit (2) with the spectrum detection unit (1).

6. A plant lighting compensation method, characterized in that: The following steps are involved: Setting plant types and planting data, grouping and matching the spectrum detection unit (1) and the plant supplementary light unit (2) according to the planting data, and adaptively adjusting the positions of the spectrum detection unit (1) and the plant supplementary light unit (2); Acquiring the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant according to the plant species, presetting the required working mode and working parameters for the plant light supplement unit (2), and starting the plant light supplement unit (2); The light data of the illuminated surface of the plant is collected by the spectrum detection unit (1) and transmitted to the plant light supplement unit (2); the plant light supplement unit (2) obtains the light data, performs data analysis and compares the pre-set working mode and working parameters to determine the working mode and working parameters of the plant light supplement unit (2); Dimming data is generated according to the growth cycle, growth stage, light cycle, light compensation point and light saturation point of the plant, and the working mode of the plant fill light unit (2), and the fill light data output by the plant fill light unit (2) is controlled according to the dimming data, so that the plant fill light unit (2) compensates the light for the plant.

7. A plant lighting compensation method as claimed in claim 6, characterized in that: Also includes: According to the generated dimming data and the current working parameters of the plant fill light unit (2), a fitting change curve of the fill light data is generated by a linear interpolation method, and the plant fill light unit (2) smoothly changes the fill light data it outputs according to the fitting change curve.

8. A plant lighting compensation method as claimed in claim 7, characterized in that: Also includes: When the plant supplementary lighting unit (2) changes the ambient lighting data according to the dimming data output and compensates the lighting for the plants, the lighting data is collected in real time, and it is determined whether the supplementary lighting data meets the growth requirements of the plants at the current growth stage based on the real-time lighting data, and adaptive adjustments are made.

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