CN104885820A - Light supplement method, device and system for three-dimensional greenhouse seedling-raising - Google Patents

Abstract

The invention provides a light supplement method, device and system for three-dimensional greenhouse seedling-raising. The method comprises the steps of: obtaining the illumination intensity and distribution of each layer of a three-dimensional greenhouse seedling-raising frame in a current place respectively; according to the preset illumination demands of greenhouse crops to be subjected to light supplement on each layer of the three-dimensional greenhouse seedling-raising frame and the illumination intensity and distribution of each layer of the three-dimensional greenhouse seedling-raising frame, calculating the light supplement intensity required by each layer of the three-dimensional greenhouse seedling-raising frame respectively; and according to the light supplement intensity required by each layer of the three-dimensional greenhouse seedling-raising frame, controlling light supplement lamps to perform light supplement. According to the method, natural illumination can be utilized to the maximum extent while the three-dimensional greenhouse space is fully utilized, the number of light supplement lamps and the energy consumption for light supplement during three-dimensional seedling-raising are reduced, and the seedling quality and the growth speed of each seedling-raising layer can be ensured to be consistent; the method has the advantages that the energy consumption is reduced and the lamp hardware input and the operation costs during the three-dimensional greenhouse seedling-raising are reduced.

Description

Method, device and system for supplementing light for three-dimensional growing seedlings in a greenhouse

technical field

The invention relates to the technical field of agricultural greenhouse facilities, in particular to a method, device and system for supplementing light for three-dimensional growing seedlings in a greenhouse.

Background technique

In recent years, my country has become a large country of facility agriculture. In order to save land and increase production, greenhouse vertical seedlings have also developed rapidly in my country. However, the natural light intensity received by each layer of the vertical seedling rack in the greenhouse is different and insufficient. If you simply use the same light supplement for each layer, it will cause uneven growth of seedlings on each layer and affect product quality.

The natural light received by each layer of the three-dimensional sports seedling rack in the greenhouse changes from strong to weak from top to bottom. Except for the top layer, the natural light intensity of other layers cannot meet the needs of seedlings.

It can be seen that how to solve technical problems such as insufficient light intensity and insufficient uniformity of each layer of seedling racks in the greenhouse vertical seedlings, resulting in uneven seedling quality, has become an important issue in the existing agricultural greenhouse facility technology.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a method, device and system for supplementing light in greenhouse stereoscopic seedlings that overcome the above problems or at least partially solve or alleviate the above problems, which can not only solve the problem of seedling quality, but also save energy.

According to one aspect of the present invention, there is provided a method for replenishing light in greenhouse stereoscopic seedlings, the method comprising:

Respectively obtain the light intensity and distribution of each layer of the greenhouse three-dimensional seedling stand at the current location;

According to the preset light requirements of each layer of greenhouse crops to be supplemented with light and the light intensity and distribution of each layer of the greenhouse three-dimensional seedling racks, the needs of each layer of the greenhouse three-dimensional seedling racks are calculated respectively. the fill light intensity;

According to the supplementary light intensity required by each layer of the three-dimensional sports seedling rack in the greenhouse, the supplementary light lamps are controlled to supplement the light.

Optionally, the respectively obtaining the light intensity and distribution of each layer of the greenhouse stereoscopic seedling rack at the current location specifically includes:

Respectively obtain a plurality of light intensities collected by a plurality of light environment detection instruments arranged on each layer of the three-dimensional seedling rack in the greenhouse;

According to the obtained multiple light intensities of each layer of the three-dimensional sports seedling rack in the greenhouse, the light intensity and distribution of the layer are calculated.

Optionally, the respectively obtaining the light intensity and distribution of each layer of the greenhouse stereoscopic seedling rack at the current location specifically includes:

Acquiring climate conditions and weather status information of the current location, the climate conditions and weather status information are input by the user;

According to the climate conditions and weather state information, the light intensity and distribution of each layer of the three-dimensional seedling rack in the greenhouse are calculated by using a preset light environment model.

Optionally, the supplementary light lamps are controlled according to the supplementary light intensity required by each layer of the three-dimensional greenhouse seedling rack for supplementary light, specifically:

The working parameters of the supplementary light lamps are controlled according to the supplementary light intensity required by each layer of the greenhouse stereoscopic seedling rack, so that the total light intensity of each layer of the greenhouse stereoscopic seedling rack to be supplemented by light is greater than or equal to its corresponding preset lighting requirements.

According to another aspect of the present invention, there is provided a kind of supplementary light device for three-dimensional seedlings in a greenhouse, the device comprising:

The acquiring unit is used to respectively acquire the light intensity and its distribution of each layer of the greenhouse three-dimensional seedling rack at the current location;

The calculation unit is used to calculate the three-dimensional growing seedling rack for the greenhouse according to the preset light requirements of the greenhouse crops to be supplemented with light for each layer of the three-dimensional growing seedling rack for the greenhouse and the light intensity and distribution of each layer of the three-dimensional growing seedling rack for the greenhouse. The fill light intensity required for each layer;

The control unit is used to control the supplementary light lamps to perform supplementary light according to the required supplementary light intensity of each layer of the three-dimensional sports seedling rack in the greenhouse.

Optionally, the acquisition unit specifically includes:

The first acquisition module is used to respectively acquire a plurality of light intensities collected by a plurality of light environment detection instruments arranged on each layer of the three-dimensional seedling rack in the greenhouse;

The first computing module is used to calculate the light intensity and distribution of the layer according to the acquired multiple light intensities of each layer of the greenhouse three-dimensional seedling stand.

Optionally, the acquisition unit specifically includes:

The second acquiring module is used to acquire climate conditions and weather state information of the current location, and the climate conditions and weather state information are input by the user;

The second calculation module is used for the calculation module to calculate the light intensity and distribution of each layer of the three-dimensional sports seedling rack in the greenhouse by using the preset light environment model according to the climate conditions and weather state information.

According to another aspect of the present invention, there is provided a greenhouse supplementary light system for stereoscopic seedlings. The system includes: supplementary light lamps and the greenhouse supplementary light device for stereoscopic seedlings as described in any one of the above, and the greenhouse stereoscopic seedling supplementary light The device controls the supplementary light lamp to perform supplementary light.

The beneficial effects of the present invention are:

The method, device and system for supplementing light in greenhouse three-dimensional seedlings provided by the present invention are coupled with natural light and artificial supplementary light, can make full use of the three-dimensional space of the greenhouse while utilizing natural light to the greatest extent, and reduce the number and supplementary light fixtures for three-dimensional seedlings. The energy consumption of light operation can ensure the consistency of seedling quality and growth speed of each seedling layer, and solve the technical problems such as insufficient light intensity and insufficient uniformity of each layer of seedling racks in greenhouse vertical seedlings, resulting in uneven seedling quality. It has the advantages of saving energy consumption and reducing the hardware investment and operating costs of greenhouse three-dimensional seedling lamps.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

Fig. 1 is the flow chart of a kind of greenhouse three-dimensional seedling filling light method that the embodiment of the present invention proposes;

Fig. 2 is a structural block diagram of a greenhouse stereoscopic seedling supplementary light device proposed by an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and/or groups thereof.

Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be used in an idealized or overly formal sense unless specifically defined to explain.

Fig. 1 shows a flow chart of a method for replenishing light for stereoscopic seedlings in a greenhouse according to an embodiment of the present invention.

With reference to Fig. 1, the method for supplementing light of greenhouse three-dimensional seedlings that the embodiment of the present invention proposes comprises:

S11. Respectively obtain the light intensity and distribution of each layer of the greenhouse three-dimensional seedling rack at the current location;

S12. According to the preset illumination requirements of the greenhouse crops to be supplemented with light on each layer of the three-dimensional growing seedling rack in the greenhouse and the light intensity and distribution of each layer of the three-dimensional growing seedling rack in the greenhouse, respectively calculate each of the vertical growing seedling racks in the greenhouse The fill light intensity and fill light range required by the layer;

S13. Control the supplementary light lamps to perform supplementary light according to the required supplementary light intensity of each layer of the three-dimensional seedling rack in the greenhouse.

The method for supplementing light for three-dimensional growing seedlings in a greenhouse proposed by the embodiment of the present invention uses a mixed lighting system to supplement light for three-dimensional growing seedlings in a greenhouse, and the mixed lighting system includes a natural light system and an artificial light system. The natural light system is mainly sunlight. The light of each layer on the three-dimensional seedling rack of the greenhouse is actually tested by the light environment monitoring instrument, and the light intensity and distribution are quantitatively analyzed to obtain the actual change and distribution of the natural light. Or, use the preset The light environment model, combined with the light environment simulation software, simulates the natural light intensity, distribution law and change characteristics of the greenhouse three-dimensional seedling racks in different regions and under different climate conditions. The artificial light system is mainly various artificial light sources. Based on the light distribution of each layer on the three-dimensional seedling rack in the greenhouse and the light requirements of crop seedlings, the light intensity required for artificial supplementary light is calculated, the artificial supplementary light scheme is designed, and the supplementary light lamps are controlled to supplement the light. It solves the technical problems such as insufficient light intensity and insufficient uniformity of each layer of seedling racks in the vertical seedling cultivation in the greenhouse, which cause uneven seedling quality.

Further, step S11 in the embodiment of the present invention obtains the light intensity and distribution of each layer of the greenhouse stereoscopic seedling rack at the current location respectively, specifically including:

Respectively obtain a plurality of light intensities collected by a plurality of light environment detection instruments arranged on each layer of the three-dimensional seedling rack in the greenhouse;

According to the obtained multiple light intensities of each layer of the three-dimensional sports seedling rack in the greenhouse, the light intensity and distribution of the layer are calculated.

Wherein, according to the supplementary light intensity required for each layer of the three-dimensional sports seedling rack in the greenhouse, the supplementary light fixture is controlled to supplement the light, specifically:

The working parameters of the supplementary light lamps are controlled according to the supplementary light intensity required by each layer of the greenhouse stereoscopic seedling rack, so that the total light intensity of each layer of the greenhouse stereoscopic seedling rack to be supplemented by light is greater than or equal to its corresponding preset lighting requirements.

Step S11 in another embodiment of the present invention obtains the illumination intensity and distribution thereof of each layer of the greenhouse three-dimensional seedling rack at the current location respectively, and may also include:

Acquiring climate conditions and weather status information of the current location, the climate conditions and weather status information are input by the user;

According to the climate conditions and weather state information, the light intensity and distribution of each layer of the three-dimensional seedling rack in the greenhouse are calculated by using a preset light environment model.

The present invention can actually test the illumination of each layer on the three-dimensional sports seedling rack of the greenhouse through the illumination environment monitoring instrument, quantitatively analyze the illumination intensity and distribution, and obtain the actual change and distribution law of the natural illumination; it can also use the preset illumination environment model, combined with the illumination environment The simulation software simulates the natural light intensity, distribution and change characteristics of the greenhouse vertical seedling racks in different regions and under different climatic conditions.

The present invention will be further described in detail below with a specific example of supplementing light for flue-cured tobacco stereoscopic seedlings in multi-span greenhouses in Zunyi, Guizhou.

(1) Put forward the light requirements for seedling cultivation.

The light intensity requirement for flue-cured tobacco seedling cultivation is 110μmol.m ^-2 .s ^-1 .

(2) Measure the light intensity and distribution of each layer of the three-dimensional seedling rack in the multi-span greenhouse under natural light conditions.

At 10:30 on March 14, 2014, the weather was cloudy. In the vertical seedling greenhouse of Zunyi Leshan Base, the light intensity of each seedling layer on the 1st to 5th floors was actually measured, and a point was tested every 10cm. A total of 13 points were tested and the data was recorded. Obtain the light quantum intensity of each layer, and calculate the intensity of each layer that needs to be supplemented with light, as shown in the table below:

Table 1 The light conditions of each layer of the three-dimensional seedling rack in the multi-span greenhouse under the measured natural light conditions

(3) The software simulates the light intensity of each layer of the three-dimensional seedling rack in the multi-span greenhouse under natural light conditions (cloudy).

Simulate the natural light intensity and distribution in the seedling greenhouse of Leshan Seedling Base in Zunyi City at 10:00 on March 10, 2014 (cloudy day), and use DIAlux to simulate and calculate the light environment of each layer on the vertical seedling rack in the greenhouse under natural light conditions. Record the average value of the data to obtain the light quantum intensity and distribution of each layer, and calculate the average intensity of each layer that needs to be supplemented with light, as shown in the following table:

Table 2 The illumination conditions of each layer of the three-dimensional seedling rack in the multi-span greenhouse under simulated natural light conditions

(4) Determine the supplementary light scheme and implement verification

Compare the measured data with the simulated data, as shown in the table below:

Table 3 Comparison table of supplementary light requirements between measured data and simulated data

After comparison, the simulated results are very close to the measured results. Therefore, the simulation data can be used to determine the supplementary light scheme, that is, the average supplementary light required for the first layer is 103.7 μmol, the average supplementary light required for the second floor is 103.8 μmol, the average supplementary light required for the third floor is 84.2 μmol, the average supplementary light required for the fourth floor is 61.6 μmol, and the average supplementary light required for the fifth floor is 61.6 μmol. Artificial lighting is required.

After selecting and installing the appropriate lamps and lanterns according to the plan, the actual measurement was carried out on March 15, 2014, at 10:00, and the weather was cloudy. The actual measurement data is shown in the table below:

Table 4 The measured light conditions of each layer of the three-dimensional seedling rack in the multi-span greenhouse after supplementing the light

layers layer second floor three floors four floors five floors Measured light intensity (μmol) 128.2 131.8 131.5 143.9 231.5

After supplementing the light, the average light quantum intensity of each layer of the seedling rack is greater than the minimum standard of 110 μmol required by plants. It can be seen that the method of supplementing light by coupling natural light to the three-dimensional seedlings of the greenhouse in the present invention is scientific and effective. The data is basically consistent with the measured data, the simulation method can be used instead of the actual measurement method, and the process of supplementary light data measurement can be greatly simplified through the simulated data, and the natural light intensity and distribution of each layer of the seedling rack can be calculated in a short period of time.

The greenhouse three-dimensional seedling supplementary light method proposed by the embodiment of the present invention is coupled with natural light and artificial supplementary light, which can make full use of the three-dimensional space of the greenhouse while utilizing natural light to the greatest extent, and reduce the number of supplementary light lamps and supplementary light operation during three-dimensional seedling cultivation. Energy consumption, and can ensure the consistency of seedling quality and growth rate in each seedling layer, which has the advantages of saving energy consumption, reducing hardware investment and operating costs of greenhouse three-dimensional seedling lamps.

Fig. 2 is a structural block diagram of a greenhouse stereoscopic seedling supplementary light device proposed by an embodiment of the present invention.

Referring to Fig. 2, the greenhouse stereoscopic seedling supplementary light device provided by the embodiment of the present invention includes an acquisition unit 101, a calculation unit 102, and a control unit 103, wherein:

The acquisition unit 101 is used to respectively acquire the light intensity and distribution of each layer of the greenhouse three-dimensional seedling stand at the current location;

The calculation unit 102 is used to calculate the preset illumination requirements of greenhouse crops to be supplemented with light on each layer of the three-dimensional growing seedling rack of the greenhouse and the light intensity and distribution of each layer of the three-dimensional growing seedling rack of the greenhouse. The supplementary light intensity and supplementary light range required for each layer of the three-dimensional sports seedling rack in the greenhouse;

The control unit 103 is used to control the supplementary light lamps to perform supplementary light according to the required supplementary light intensity of each layer of the three-dimensional sports seedling rack in the greenhouse.

Further, the acquisition unit 101 in the embodiment of the present invention specifically includes:

The first acquisition module is used to respectively acquire a plurality of light intensities collected by a plurality of light environment detection instruments arranged on each layer of the three-dimensional seedling rack in the greenhouse;

The first computing module is used to calculate the light intensity and distribution of the layer according to the acquired multiple light intensities of each layer of the greenhouse three-dimensional seedling stand.

Furthermore, the control unit 103 is specifically used to control the working parameters of the supplementary light lamps according to the supplementary light intensity required by each layer of the greenhouse stereoscopic seedling rack, so that each layer of the greenhouse stereoscopic seedling rack is to be supplemented with light. The total light intensity of the crop is greater than or equal to its corresponding preset light requirement.

In another embodiment of the present invention, the acquisition unit 101 may further include:

The second acquiring module is used to acquire climate conditions and weather state information of the current location, and the climate conditions and weather state information are input by the user;

The second calculation module is used for the calculation module to calculate the light intensity and distribution of each layer of the three-dimensional sports seedling rack in the greenhouse by using the preset light environment model according to the climate conditions and weather state information.

Another embodiment of the present invention also provides a greenhouse stereoscopic seedling supplementary light system, which includes: a supplementary light lamp and a greenhouse stereoscopic seedling supplementary light device as described in any one of the above, and the greenhouse stereoscopic seedling supplementary light The light device controls the fill light lamp to perform fill light. The greenhouse stereoscopic seedling filling device in the system, as shown in Figure 2, includes an acquisition unit 101, a calculation unit 102 and a control unit 103, wherein: the acquisition unit 101 is used to respectively acquire the greenhouse stereoscopic seedling racks at the current location The light intensity of each layer of the greenhouse and its distribution; the calculation unit 102 is used for according to the preset light requirements of the greenhouse crops to be supplemented by each layer of the greenhouse three-dimensional seedling rack and each layer of the greenhouse three-dimensional seedling rack Light intensity and distribution thereof, respectively calculate the supplementary light intensity required for each layer of the greenhouse stereoscopic seedling rack; the control unit 103 is used for supplementing light intensity required for each layer of the greenhouse stereoscopic seedling rack Control fill light fixtures to fill light.

The greenhouse stereoscopic seedling supplementary light method, device and system proposed in the embodiments of the present invention are applicable to the stereoscopic seedling cultivation of any crop in the greenhouse.

To sum up, the method, device and system for supplementing light in greenhouse three-dimensional seedlings provided by the present invention have the following beneficial effects:

1. Use natural light and artificial light to supplement the mixed light of the three-dimensional seedlings in the greenhouse, make full use of the three-dimensional space of the greenhouse and maximize the use of natural light, reduce the number of supplementary light lamps and the energy consumption of the supplementary light when the three-dimensional seedlings are planted;

2. Obtain the natural light intensity and distribution law on the three-dimensional seedling rack through scientific simulation, and design the artificial light supplement scheme so that the light intensity on each layer of the seedling rack can meet the seedling needs, and at the same time ensure that the difference in illumination between each layer is not large, and finally Ensure the consistency of seedling quality and growth rate.

3. The hybrid supplementary light system does not only rely on artificial supplementary light to meet the needs of seedlings, but also has the advantages of saving energy consumption and reducing hardware investment and operating costs of greenhouse three-dimensional seedling lighting fixtures.

Those skilled in the art can understand that the drawing is only a schematic diagram of a preferred embodiment, and the modules or processes in the drawing are not necessarily necessary for implementing the present invention.

Those skilled in the art can understand that the modules in the system of the embodiment can be distributed in the system of the embodiment according to the description of the embodiment, or can be located in one or more systems different from the embodiment according to the corresponding changes. The modules in the above embodiments can be combined into one module, and can also be further split into multiple sub-modules.

The above descriptions are only part of the embodiments of the present invention. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principles of the present invention. It should be regarded as the protection scope of the present invention.

Claims (8)

1. a greenhouse stereo-seedling growing light compensation method, is characterized in that, described method comprises:

Obtain intensity of illumination and the distribution thereof of every one deck of the greenhouse stereo-seedling growing frame of current location respectively;

Intensity of illumination and the distribution thereof of the default lighting requirements of light filling chamber crop and every one deck of described greenhouse stereo-seedling growing frame is treated, the light filling intensity that the every one deck calculating described greenhouse stereo-seedling growing frame respectively needs according to every one deck of greenhouse stereo-seedling growing frame;

Light filling is carried out according to the light filling strength control light filling light fixture that every one deck of described greenhouse stereo-seedling growing frame needs.

2. method according to claim 1, is characterized in that, described intensity of illumination and the distribution thereof obtaining every one deck of the greenhouse stereo-seedling growing frame of current location respectively, specifically comprises:

Obtain multiple intensities of illumination of the multiple photoenvironment detecting instruments collections being arranged on every one deck of greenhouse stereo-seedling growing frame respectively;

According to multiple intensities of illumination of the every one deck of the greenhouse stereo-seedling growing frame obtained, calculate intensity of illumination and the distribution thereof of this layer.

3. method according to claim 1, is characterized in that, described intensity of illumination and the distribution thereof obtaining every one deck of the greenhouse stereo-seedling growing frame of current location respectively, specifically comprises:

Obtain weather conditions and the weather state information of current location, described weather conditions and weather state information are inputted by user;

Utilize according to described weather conditions and weather state information the photoenvironment model preset, calculate intensity of illumination and the distribution thereof of every one deck of greenhouse stereo-seedling growing frame.

4. the method according to any one of claim 1-3, is characterized in that, the described light filling strength control light filling light fixture needed according to every one deck of described greenhouse stereo-seedling growing frame carries out light filling, is specially:

The running parameter of the light filling strength control light filling light fixture of described every one deck needs according to described greenhouse stereo-seedling growing frame, treats that to make every one deck of greenhouse stereo-seedling growing frame total intensity of illumination of light filling chamber crop is more than or equal to the default lighting requirements of its correspondence.

5. a greenhouse stereo-seedling growing light compensating apparatus, is characterized in that, described device comprises:

Acquiring unit, for obtaining intensity of illumination and the distribution thereof of every one deck of the greenhouse stereo-seedling growing frame of current location respectively;

Computing unit, for treating intensity of illumination and the distribution thereof of the default lighting requirements of light filling chamber crop and every one deck of described greenhouse stereo-seedling growing frame according to every one deck of greenhouse stereo-seedling growing frame, the light filling intensity that the every one deck calculating described greenhouse stereo-seedling growing frame respectively needs;

Control unit, carries out light filling for the light filling strength control light filling light fixture needed according to every one deck of described greenhouse stereo-seedling growing frame.

6. device according to claim 5, is characterized in that, described acquiring unit, specifically comprises:

First acquisition module, for obtaining multiple intensities of illumination of the multiple photoenvironment detecting instruments collections being arranged on every one deck of greenhouse stereo-seedling growing frame respectively;

First computing module, for multiple intensities of illumination of the every one deck according to the greenhouse stereo-seedling growing frame obtained, calculates intensity of illumination and the distribution thereof of this layer.

7. device according to claim 5, is characterized in that, described acquiring unit, specifically comprises:

Second acquisition module, for obtaining weather conditions and the weather state information of current location, described weather conditions and weather state information are inputted by user;

Second computing module, for computing module, utilizes according to described weather conditions and weather state information the photoenvironment model preset, calculates intensity of illumination and the distribution thereof of every one deck of greenhouse stereo-seedling growing frame.

8. a greenhouse stereo-seedling growing light-supplementing system, it is characterized in that, described system comprises: light filling light fixture and the greenhouse stereo-seedling growing light compensating apparatus as described in any one of claim 5-7, and described greenhouse stereo-seedling growing light compensating apparatus controls described light filling light fixture and carries out light filling.