Light supplement lamp group applied to greenhouse crops and cluster control system thereof

Abstract

The invention relates to the field of light supplement lamps for greenhouses, aims to solve the problems that light supplement lamps are not high in efficiency due to the fact that control over spectrums and illumination intensity in a light supplement lamp control system is not accurate enough, and particularly relates to a light supplement lamp set applied to greenhouse crops and a cluster control system of the light supplement lamp set. Comprising a lamp bead matrix, a digital terminal, an illumination acquisition unit, a crop analysis unit, a light supplement control unit and a cluster control unit. According to the invention, the corresponding required spectrum is obtained according to the crops in the greenhouse and the growth stage of the crops, the spectrum wavelength required to be supplemented is obtained according to the difference between the required spectrum and the natural spectrum, the light spectrum of the light supplementing lamp is adjusted according to the spectrum wavelength, the more suitable light supplementing spectrum is obtained, and the illumination of the area in the greenhouse is collected. The method comprises the following steps: performing integral calculation on illumination intensity according to a collection result to obtain an accumulated illumination quantity, predicting an illumination accumulation quantity of the whole day on the basis of the accumulated illumination quantity, and judging whether light supplementation is needed or not according to the predicted illumination accumulation quantity to ensure normal growth of plants.

Description

Technical Field

[0001] The present invention relates to the field of greenhouse fill-in lights, and in particular to a fill-in light group applied to greenhouse crops and a cluster control system thereof. Background Art

[0002] Plant supplementary lighting is a kind of lamp that uses light instead of sunlight to provide the light source required for the growth and development of greenhouse plants in accordance with the natural law of plant growth and the principle that plants use sunlight for photosynthesis. Lighting is closely related to the growth of crops. Whether the light energy can be captured to the maximum extent and the potential of plant photosynthesis can be fully utilized will be directly related to the benefits of agricultural production. In recent years, driven by market demand, greenhouses are widely used to produce off-season flowers, fruits, vegetables, etc. Due to the short sunshine time in winter and spring, crops grow slowly and the yield is low, so supplementary lighting is urgently needed;

[0003] At present, the supplementary light and its control system in the prior art still have deficiencies. The existing patent CN107943163A discloses a supplementary light control scheme, in which the photosynthesis temperature and photosynthesis duration are controlled to ensure that the plant has sufficient light while making the operation control of the supplementary light more reasonable. However, for plants, different varieties of plants or different growth periods of plants have different requirements for light. For example, blue-violet light and cyan light have a great effect on plant growth and bud formation stages, while red light and infrared light can promote the germination of seeds or spores and the elongation of stems. When plants grow, the cumulative amount of light that plays a decisive role, that is, the cumulative amount of photosynthesis, requires the combined effect of light intensity and light duration, and plants do not absorb all light. In the light curve of photosynthesis, there are light compensation points and light saturation points. The light saturation point is the maximum light intensity that plants can absorb. After exceeding the light saturation point, increasing the light intensity in time cannot improve the photosynthesis efficiency. Therefore, the control of the supplementary light requires a more accurate spectrum and light intensity control system;

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] In order to solve the problems of inaccurate control of spectrum and light intensity in a fill light control system and low fill light efficiency, the present invention proposes a fill light group and a cluster control system for greenhouse crops.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A fill light set for greenhouse crops includes a fill light cover, a mounting rod is fixedly mounted on the back of the fill light cover, the mounting rod is composed of a hard rod and a thin steel cable at one end, a lamp bead matrix is ​​installed inside the fill light cover, and a digital terminal is fixedly mounted on the edge of the fill light cover;

[0008] The digital terminal includes a lamp bead control module and a microwave networking module. The lamp bead control module is used to control the operating power of lamp beads with different spectrums in the lamp bead matrix. The microwave networking module is used to transmit and receive microwave signals and to exchange data with other fill lights through microwave signals.

[0009] The lamp bead matrix includes multiple groups of lamp beads with different wavelengths, which are used to emit red spectrum, blue spectrum and ultraviolet spectrum respectively.

[0010] A cluster control system for fill light groups used for greenhouse crops, including a light collection unit, a crop analysis unit, a fill light control unit, and a cluster control unit;

[0011] The crop analysis unit is used to record the planting and crop types of crops, and automatically obtain the required light information, saturated light intensity and maximum light intensity through a database;

[0012] The light collection unit collects the spectrum in the greenhouse to obtain the natural spectrum, and at the same time divides the greenhouse into regions, and collects the light in the divided regions to obtain the accumulated light in the regions;

[0013] The cluster control unit obtains the predicted all-day light intensity through light accumulation analysis, and compares the required light intensity information with the natural spectrum and the predicted all-day light intensity to generate the missing spectrum and the missing light intensity.

[0014] The fill light control unit controls the operation of the lamp matrix according to the missing spectrum and the missing light quantity.

[0015] As a preferred embodiment of the present invention, the crop analysis unit obtains the crop type and the sowing time of the crop in the greenhouse by manual input, and the crop analysis unit performs difference calculation based on the current time and the sowing time, obtains the growth time of the crop by calculation, and matches and compares the growth time of the crop with the growth stage of the crop in the database to obtain the current growth stage of the crop. The crop analysis unit obtains the required lighting information according to the current growth stage of the crop in a preset database, wherein the required lighting information includes the accumulated amount of light and spectral information, and records the saturated light intensity of the crop in the current growth stage as the saturated light intensity, and records the maximum light intensity that the crop can withstand in the current growth stage as the maximum light intensity.

[0016] As a preferred embodiment of the present invention, the light collection unit is divided into X areas when dividing the planting area in the greenhouse, where X is a natural number. The light collection unit collects the light intensity in the Xth area every preset time T and records it as the light intensity LXi, i=1, 2, 3..., n. The light intensity collected and the preset time interval are integrated to obtain the light accumulation SX in the X area.

[0017] As a preferred embodiment of the present invention, the light collection unit counts the light intensity LXi within 24 hours, obtains the light intensity in the statistical result, and compares all the light intensities with the maximum light intensity, and records the light intensity LXi greater than the maximum light intensity as the excess light intensity LXc, where c is a non-zero natural number, and accumulates the excess light intensity LXc to obtain the excess light quantity CX. The light collection unit compares the light excess CX with the preset excess threshold. If the light excess CX is greater than the preset excess threshold, a light excess warning is generated for area X. If the light excess rate CX is not greater than the preset excess threshold, no response is made.

[0018] As a preferred embodiment of the present invention, the cluster control unit obtains the required lighting information through the crop analysis unit, and records the light accumulation amount and spectral information in the required lighting information as the required light amount and the required spectrum, respectively. The cluster control unit obtains the natural spectrum and light accumulation amount through the lighting acquisition unit.

[0019] As a preferred embodiment of the present invention, the cluster control unit compares the demand spectrum with the natural spectrum, calculates the proportion of each wavelength in the demand spectrum and the proportion in the natural spectrum, and if the proportion in the natural spectrum is less than the proportion in the demand spectrum, the corresponding wavelength is recorded as a missing wavelength; if the proportion in the natural spectrum is not less than the proportion in the demand spectrum, no response is made.

[0020] As a preferred embodiment of the present invention, the cluster control unit calculates and predicts the total daytime light quantity QX through the light accumulation quantity SX. Where q is the total daylight time, which is calculated based on the sunrise and sunset times of the day, k is the number of preset times T that have passed, and m is the adjustment coefficient. The value range of m is -1 to 0. The cluster control unit compares the predicted daylight QX with the required light. If the predicted daylight is greater than or equal to the required light, no response is made. If the predicted daylight is less than the required light, area X is recorded as a light-deficient area, and the difference between the predicted daylight and the required light is calculated and recorded as the light shortage.

[0021] As a preferred embodiment of the present invention, after obtaining the shortage wavelength, the fill light control unit controls all fill lights to adjust the ratio of the working lamp bead types of the lamp bead matrix and the luminous power of each working lamp bead type through the shortage wavelength, and records it as the fill light ratio.

[0022] As a preferred embodiment of the present invention, after obtaining the shortage of light, the fill light control unit controls the fill light in the light shortage area to adjust the operating power according to the shortage of light. When adjusting the operating power of the fill light in area X, the fill light control unit obtains the latest real-time light intensity LX, compares the real-time light intensity LX with the saturation light intensity, and generates a stop fill light signal if the real-time light intensity LX is greater than or equal to the saturation light intensity; if the real-time light intensity LX is less than the saturation light intensity, a fill light start signal is generated;

[0023] After generating the fill light start signal, the fill light control unit converts the shortfall of light into the total power of the fill light lamp according to a preset conversion coefficient, and the total power of the fill light lamp is distributed to all types of lamp beads according to the fill light ratio.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. In the present invention, the spectrum of the light in the greenhouse is collected, and the corresponding required spectrum is obtained according to the crops in the greenhouse and the crop growth stage, so as to obtain the spectral wavelength required to be supplemented according to the gap between the required spectrum and the natural spectrum, and adjust the spectrum of the fill light according to the spectral wavelength to obtain a more suitable fill light spectrum and increase the fill light effect.

[0026] 2. In the present invention, the greenhouse is divided into areas, and light is collected according to the area divisions. The light intensity is integrated and calculated based on the collected results to obtain the cumulative light amount. Based on the cumulative light amount, the cumulative light amount for the whole day is predicted, and it is determined whether supplementary light is needed based on the predicted cumulative light amount, thereby ensuring the normal growth of plants.

[0027] 3. In the present invention, when supplementary lighting is provided to plants, the current light intensity is analyzed, and the start and stop control of the supplementary light is implemented according to whether the light intensity exceeds the saturation point, thereby avoiding the situation where the sum of natural light and the supplementary light exceeds the saturation point and causes power waste of the supplementary light.

[0028] 4. In the present invention, a threshold analysis is performed on the natural light intensity, and an alarm is generated when the light intensity is too high, thereby reminding the staff to avoid excessive light intensity causing plant burns by shading. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the lamp bead matrix structure of the present invention;

[0031] Figure 2 The main structural diagram of the present invention is

[0032] Figure 3 is a system block diagram of the present invention;

[0033] Figure 4 It is a system flow chart of the present invention.

[0034] In the picture: 1. Fill light cover; 2. Mounting rod; 3. Digital terminal; 4. Lamp matrix. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] See also Figure 1 - Figure 4 As shown, a fill light set for greenhouse crops includes a fill light cover 1, a mounting rod 2 is fixedly installed on the back of the fill light cover 1, and the mounting rod 2 is composed of a hard rod and a thin steel cable at one end. A lamp bead matrix 4 is installed inside the fill light cover 1, and a digital terminal is fixedly installed at the edge of the fill light cover 1;

[0038] The digital terminal includes a lamp bead control module and a microwave networking module. The lamp bead control module is used to control the operating power of lamp beads with different spectrums in the lamp bead matrix 4. The microwave networking module is used to transmit and receive microwave signals and to exchange data with other fill lights through microwave signals.

[0039] The lamp bead matrix 4 includes multiple groups of lamp beads with different wavelengths, which are used to emit red spectrum, blue spectrum and ultraviolet spectrum respectively.

[0040] Embodiment 2:

[0041] See also Figure 1 - Figure 4 As shown, a cluster control system of a fill light group applied to greenhouse crops includes a light collection unit, a crop analysis unit, a fill light control unit and a cluster control unit;

[0042] The crop analysis unit obtains the crop types and sowing time of the crops in the greenhouse, which are all obtained by manual input by the management personnel. The crop analysis unit calculates the difference between the current time and the sowing time, obtains the growth time of the crops through calculation, and matches and compares the growth time of the crops with the growth stage of the crops to obtain the current growth stage of the crops. The crop analysis unit obtains the required light information according to the current growth stage of the crops in the preset database, where the required light information includes the accumulated light amount and the spectrum information, and obtains the saturated light intensity of the crops at the current growth stage, which is recorded as the saturated light intensity, and obtains the light intensity that the crops can withstand without being burned at the current growth stage, which is recorded as the maximum light intensity;

[0043] The light collection unit divides the planting area in the greenhouse into X areas, where X is a natural number. The light collection unit collects the light intensity in the Xth area every preset time T and records it as the light intensity LXi, i=1, 2, 3..., n. The light accumulation SX in the X area is obtained by integrating the collected light intensity and the preset time interval.

[0044] The light collection unit counts the light intensity LXi within 24 hours, obtains the light intensity in the statistical results, and compares all light intensities with the maximum light intensity. The light intensity LXi greater than the maximum light intensity is recorded as the excess light intensity LXc, where c is a non-zero natural number. The excess light intensity LXc is accumulated and calculated to obtain the excess light quantity CX. The light collection unit compares the light excess CX with the preset excess threshold. If the light excess CX is greater than the preset excess threshold, a light excess warning is generated for the area X. If the light excess rate CX is not greater than the preset excess threshold, no response is made.

[0045] The light collection unit collects the spectrum of light received by the planting area in the greenhouse and records the collected spectrum as a natural spectrum;

[0046] The cluster control unit obtains the required light information through the crop analysis unit, and records the light accumulation amount and spectrum information in the required light information as the required light amount and the required spectrum respectively. The cluster control unit obtains the natural spectrum and light accumulation amount through the light collection unit.

[0047] The cluster control unit compares the demand spectrum with the natural spectrum, and calculates the proportion of each wavelength in the demand spectrum and the proportion in the natural spectrum. If the proportion in the natural spectrum is less than the proportion in the demand spectrum, the corresponding wavelength is recorded as a short wavelength. If the proportion in the natural spectrum is not less than the proportion in the demand spectrum, no response is made.

[0048] The cluster control unit calculates and predicts the total daytime light intensity QX based on the accumulated light intensity SX. Where q is the total daylight time, calculated based on the sunrise and sunset times of the day, k is the number of preset time T that has passed, m is the adjustment coefficient, and the value range of m is -1 to 0. The cluster control unit compares the predicted daylight QX with the required light. If the predicted daylight is greater than or equal to the required light, no response is made. If the predicted daylight is less than the required light, the area X is recorded as a light-deficient area, and the difference between the predicted daylight and the required light is calculated and recorded as the light shortage.

[0049] The cluster control unit sends the missing wavelength and the missing light amount to the fill light control unit.

[0050] Embodiment three:

[0051] See also Figure 1 - Figure 4 As shown, after obtaining the shortage wavelength, the fill light control unit controls all fill light lamps to adjust the ratio of the working lamp bead types of the lamp bead matrix 4 and the luminous power of each working lamp bead type through the shortage wavelength, and records it as the fill light ratio, thereby increasing the proportion of the shortage wavelength in the luminous spectrum of the fill light;

[0052] After obtaining the shortage of light, the fill light control unit controls the fill light in the light shortage area to adjust the operating power by the shortage of light. When adjusting the operating power of the fill light in area X, the fill light control unit obtains the latest real-time light intensity LX, and compares the real-time light intensity LX with the saturation light intensity. If the real-time light intensity LX is greater than or equal to the saturation light intensity, a fill light stop signal is generated. If the real-time light intensity LX is less than the saturation light intensity, a fill light start signal is generated, thereby avoiding the situation that the light intensity during fill light exceeds the saturation light intensity, resulting in the inability of plants to absorb light, resulting in a waste of fill light power.

[0053] After generating the fill light start signal, the fill light control unit converts the shortage of light into the total power of the fill light according to the preset conversion coefficient. The total power of the fill light is distributed to all types of lamp beads according to the fill light ratio to complete the fill light for the crops, thus making the crop fill light spectrum more scientific and effective.

[0054] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fill light set for greenhouse crops, characterized in that: The invention comprises a fill light lampshade (1), wherein a mounting rod (2) is fixedly mounted on the back of the fill light lampshade (1), wherein the mounting rod (2) is composed of a hard rod and a thin steel cable at one end, a lamp bead matrix (4) is mounted inside the fill light lampshade (1), and a digital terminal is fixedly mounted on the edge of the fill light lampshade (1); The digital terminal comprises a lamp bead control module and a microwave networking module, wherein the lamp bead control module is used to control the operating power of lamp beads with different spectrums in the lamp bead matrix (4), and the microwave networking module is used to transmit and receive microwave signals, and to exchange data with other fill lights through microwave signals; The lamp bead matrix (4) includes a plurality of groups of lamp beads with different wavelengths, which are respectively used to emit a red spectrum, a blue spectrum and an ultraviolet spectrum.

2. A cluster control system for a supplementary light group for greenhouse crops, applicable to the supplementary light group for greenhouse crops as claimed in claim 1, characterized in that: It includes a light collection unit, a crop analysis unit, a fill light control unit and a cluster control unit; The crop analysis unit is used to record the planting and crop types of crops, and automatically obtain the required light information, saturated light intensity and maximum light intensity through a database; The light collection unit collects the spectrum in the greenhouse to obtain the natural spectrum, and at the same time divides the greenhouse into regions, and collects the light in the divided regions to obtain the accumulated light in the regions; The cluster control unit obtains the predicted all-day light intensity through light accumulation analysis, and compares the required light intensity information with the natural spectrum and the predicted all-day light intensity to generate the missing spectrum and the missing light intensity. The fill light control unit controls the operation of the lamp bead matrix (4) according to the missing spectrum and the missing light quantity.

3. The cluster control system of the supplementary light group applied to greenhouse crops according to claim 2 is characterized in that: The crop analysis unit obtains the crop types and crop sowing times in the greenhouse by manual input, and performs difference calculation between the current time and the sowing time to obtain the crop growth time through calculation, and matches and compares the crop growth time with the crop growth stage in the database to obtain the current growth stage of the crop. The crop analysis unit obtains the required lighting information according to the current growth stage of the crop in a preset database, wherein the required lighting information includes the accumulated amount of light and spectral information, and records the saturated light intensity of the crop in the current growth stage as the saturated light intensity, and records the maximum light intensity that the crop can withstand in the current growth stage as the maximum light intensity.

4. The cluster control system of the supplementary light group applied to greenhouse crops according to claim 2 is characterized in that: When dividing the planting area in the greenhouse, the light collection unit is divided into X areas, where X is a natural number. The light collection unit collects the light intensity in the Xth area every preset time T and records it as the light intensity LXi, i=1, 2, 3..., n. The light accumulation SX in the X area is obtained by integrating the collected light intensity and the preset time interval.

5. The cluster control system of the supplementary light group applied to greenhouse crops according to claim 4 is characterized in that: The light collection unit counts the light intensity LXi within 24 hours, obtains the light intensity in the statistical result, and compares all the light intensities with the maximum light intensity, records the light intensity LXi greater than the maximum light intensity as the excess light intensity LXc, where c is a non-zero natural number, and accumulates the excess light intensity LXc to obtain the excess light quantity CX. The light collection unit compares the light excess CX with the preset excess threshold. If the light excess CX is greater than the preset excess threshold, a light excess warning is generated for area X. If the light excess rate CX is not greater than the preset excess threshold, no response is made.

6. The cluster control system of the supplementary light group applied to greenhouse crops according to claim 2, characterized in that: The cluster control unit obtains the required illumination information through the crop analysis unit, and records the illumination accumulation amount and the spectrum information in the required illumination information as the required light amount and the required spectrum respectively. The cluster control unit obtains the natural spectrum and the illumination accumulation amount through the illumination collection unit.

7. The cluster control system of supplementary lighting groups for greenhouse crops according to claim 1, characterized in that: The cluster control unit compares the demand spectrum with the natural spectrum, calculates the proportion of each wavelength in the demand spectrum and the proportion in the natural spectrum, and if the proportion in the natural spectrum is less than the proportion in the demand spectrum, the corresponding wavelength is recorded as a missing wavelength; if the proportion in the natural spectrum is not less than the proportion in the demand spectrum, no response is made.

8. The cluster control system of supplementary lighting groups for greenhouse crops according to claim 1, characterized in that: The cluster control unit calculates and predicts the total daytime light intensity QX through the light accumulation SX. Where q is the total daylight time, which is calculated based on the sunrise and sunset times of the day, k is the number of preset times T that have passed, and m is the adjustment coefficient. The value range of m is -1 to 0. The cluster control unit compares the predicted daylight QX with the required light. If the predicted daylight is greater than or equal to the required light, no response is made. If the predicted daylight is less than the required light, area X is recorded as a light-deficient area, and the difference between the predicted daylight and the required light is calculated and recorded as the light shortage.

9. The cluster control system of supplementary lighting groups for greenhouse crops according to claim 2, characterized in that: After obtaining the shortage wavelength, the fill light control unit controls all fill light lamps to adjust the ratio of the working lamp bead types of the lamp bead matrix (4) and the luminous power of each working lamp bead type through the shortage wavelength, and records it as the fill light ratio.

10. The cluster control system of supplementary lighting groups for greenhouse crops according to claim 2, characterized in that: After obtaining the shortage of light, the fill light control unit controls the fill light in the light shortage area to adjust the operating power according to the shortage of light. When adjusting the operating power of the fill light in area X, the fill light control unit obtains the latest real-time light intensity LX, compares the real-time light intensity LX with the saturation light intensity, and generates a stop fill light signal if the real-time light intensity LX is greater than or equal to the saturation light intensity; and generates a fill light start signal if the real-time light intensity LX is less than the saturation light intensity; After generating the fill light start signal, the fill light control unit converts the shortfall of light into the total power of the fill light lamp according to a preset conversion coefficient, and the total power of the fill light lamp is distributed to all types of lamp beads according to the fill light ratio.

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