CN116097995A - Illumination intensity control method and system based on seedling growth height change - Google Patents
Illumination intensity control method and system based on seedling growth height change Download PDFInfo
- Publication number
- CN116097995A CN116097995A CN202211623001.2A CN202211623001A CN116097995A CN 116097995 A CN116097995 A CN 116097995A CN 202211623001 A CN202211623001 A CN 202211623001A CN 116097995 A CN116097995 A CN 116097995A
- Authority
- CN
- China
- Prior art keywords
- module
- height
- seedling
- seedlings
- illumination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005286 illumination Methods 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000008859 change Effects 0.000 title claims abstract description 16
- 230000017525 heat dissipation Effects 0.000 claims abstract description 23
- 239000011324 bead Substances 0.000 claims description 13
- 238000004364 calculation method Methods 0.000 claims description 11
- 230000033228 biological regulation Effects 0.000 claims description 5
- 238000007405 data analysis Methods 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000004907 flux Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000001429 visible spectrum Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003102 growth factor Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/60—Analysis of geometric attributes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Geometry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses an illumination intensity control method and system based on seedling growth height change, wherein the system comprises a lamp panel module, a heat dissipation module, a temperature sensor module, an illumination sensor module, a 3D structure light camera module, an HMI touch screen module and a culture tray module, wherein the heat dissipation module is arranged at the back of the lamp panel module, the temperature sensor modules are arranged at the central positions of the front and the back of the lamp panel module, the illumination sensor module, the 3D structure light camera module and the HMI touch screen module are respectively connected with the lamp panel module in a wireless manner, and the culture tray module is positioned under the illumination sensor module. By using the invention, the illumination intensity required by the height of the corresponding seedling can be further adjusted according to the real-time height information of the seedling. The method and the system for controlling the illumination intensity based on the change of the growth height of the seedlings can be widely applied to the technical field of seedling cultivation.
Description
Technical Field
The invention relates to the technical field of seedling cultivation, in particular to a method and a system for controlling illumination intensity based on seedling growth height change.
Background
Traditional vegetable seedling cultivation mode and the device that adopts mainly with traditional bed soil, nutrition alms bowl grow seedlings, and to the cultivation stage of seedling receive the influence of external numerous conditions deeply, traditional cultivate the seedling based on under the natural condition environment, the seedling survival rate is low easily appears, and quality, outward appearance etc. of seedling are all difficult to reach the forecast result, wherein illumination is the biggest to the growth factor of seedling, the illumination condition of certain proportion is directly compensated to current method, but along with the growth of the high of seedling, required illumination intensity also can change thereupon, if illumination intensity does not satisfy the growth demand of seedling, will very big degree influence the growth rate of seedling.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the illumination intensity control method and the illumination intensity control system based on the growth height change of the seedlings, which can further adjust the illumination intensity required by the corresponding seedling height according to the real-time height information of the seedlings.
The first technical scheme adopted by the invention is as follows: illumination intensity control system based on seedling growth altitude variation, including lamp plate module, heat dissipation module, temperature sensor module, illumination sensor module, 3D structure light camera module, HMI touch-sensitive screen module and cultivate tray module, heat dissipation module installs in the back of lamp plate module, the front of lamp plate module all is provided with temperature sensor module with the central point in back put, illumination sensor module, 3D structure light camera module, HMI touch-sensitive screen module pass through wireless connection with lamp plate module respectively, cultivate tray module and be located under the illumination sensor module, wherein:
the lamp panel module is used for providing illumination;
the heat dissipation module is used for reducing heat energy generated when the lamp panel module starts strong light supplementing;
the illumination sensor module is used for collecting actual illumination of the surface of the seedling;
the 3D structure light camera module is used for collecting the height value of the highest seedling;
the HMI touch screen module is used for selecting different control modes;
the culture tray module is used for placing seedlings to be cultivated.
Further, the lamp plate module includes 12 lamp plates, the arrangement mode of lamp plate is 3 4 distribution arrangements, and lamp plate size specification is 20 30mm, and the irradiation angle of lamp plate is 120, wherein:
the lamp panel comprises a red LED lamp group, a blue LED lamp group and a white LED lamp group, each LED lamp group comprises 6 color lamp beads with the same model, the connection mode of each lamp strain is series connection, and the arrangement mode of each lamp strain is in straight line equidistant arrangement;
the maximum illumination intensity of the red lamp beads and the blue lamp beads is 200 mu mol m at the height of 30cm from the culture tray module -2 ·s -1 The maximum illumination intensity of the white lamp beads is 300 mu mol m at a height of 30cm from the culture tray module -2 ·s -1 。
Meanwhile, the invention also provides a method for controlling the system based on the change of the growth height of the seedlings, which comprises the following steps:
s1, placing seedlings to be cultivated on a cultivation tray, and planting the seedlings in a preset area position under a cultivation room lamp panel;
s2, acquiring the actual growth height of the seedlings by a 3D structured light camera;
s3, according to the actual growth height of the seedlings, adjusting the illumination intensity received by the surfaces of the seedlings to reach illumination supply suitable for the growth height of the seedlings;
s4, acquiring actual illumination intensity of the seedlings through an illumination sensor;
s5, further adjusting the illumination intensity and the height of the lamp panel according to the actual illumination intensity of the seedlings;
s6, when the growth height of the seedlings reaches a preset height threshold value, the seedlings are rotated out of the cultivation room.
Further, still include the heat energy that produces when reducing the lamp plate and start highlight light filling through heat dissipation module, it specifically includes:
the back of the lamp panel is provided with a first temperature sensor, and the center of the surface of the lamp panel is provided with a second temperature sensor;
the back of the lamp panel is provided with a first temperature sensor, and the center of the surface of the lamp panel is provided with a second temperature sensor;
the temperature sensor collects the temperature data of the lamp panel in real time and feeds the temperature data back to the upper computer through 485 to perform difference calculation, so that a calculation result is obtained;
feeding back the calculation result to the control center through an internal temperature field algorithm;
the control center decides whether to start the heat dissipation device according to the calculation result;
judging that the heat radiating device is started, and calculating a PWM pulse value through an upper computer algorithm;
the control center controls the heat dissipation rate of the heat dissipation device according to the PWM pulse value.
Further, the method further comprises selecting a corresponding lamp panel working mode through the HMI touch screen, wherein the lamp panel working mode comprises a manual mode and an automatic mode, and the method comprises the following steps:
the manual mode can select different lamp plant units to set light intensity values one by one on the HMI touch screen through the regulation and control interference in the key blocking automatic mode, or can set required total light intensity, and the required light intensity and the height of the platform are led into a binary primary function preset in the controller to obtain a required PWM value for light intensity output;
according to the automatic mode, according to the set working period of the total lamp panel and the required light intensity mode (gradient dimming or constant light source), the screen is changed into a state display mode, firstly, the equipment collects the current seedling point cloud image and uploads the current seedling point cloud image to an upper computer for point cloud data analysis processing to obtain the current seedling height information, the current seedling height information is brought into PWM values/the power loss of the light intensity emitted by the lamp panel and the power of a radiating fin through a target light intensity value function, the obtained optimum temperature, height and PWM values under the condition of the lowest power loss are obtained, and then an instruction is issued to a lower computer through the upper computer to execute the regulation and control operation of the current lamp panel distance seedling height and PWM duty ratio value.
Further, the expression of the target light intensity value function is specifically as follows:
f 1 (x)＝ax 1 +bx 2 +cx 3 +d
in the above, f 1 (x) Representing the required light intensity value, x, for the target height 1 Indicating the height x of the current lamp panel from the seedling 2 Representing the PWM duty cycle value, x 3 Represents x 1 The temperature values at height, a, b, c and d, respectively, represent x 1 、x 2 、x 3 And f 1 x.
Further, the step of acquiring the actual growth height of the seedling by a 3D structured light camera specifically includes:
the 3D structure light camera is arranged at the right end 16cm away from the culture tray;
acquiring seedling growing point cloud information through a 3D structured light camera at intervals of a preset time proportion;
analyzing and calculating the seedling growth point cloud information based on python to obtain actual growth height information of the seedlings;
and uploading the actual growth height information of the seedlings to an HMI touch screen for display, and obtaining the actual growth height of the seedlings.
Further, the step of obtaining the actual illumination intensity of the seedling by the illumination sensor specifically includes:
a first illumination sensor is arranged at a position of 16cm from the bottom surface of the culture tray, and the left end of the same height is provided with the first illumination sensor;
acquiring the central illumination intensity of the seedlings by a first illumination sensor, and acquiring the edge illumination intensity of the seedlings by a second illumination sensor;
performing extremely poor calculation treatment on the central illumination intensity of the seedling and the edge illumination intensity of the seedling to obtain an extremely poor value;
judging the difference value, and compensating the difference value by the illumination intensity of the lamp panel when the difference value is larger than a preset difference threshold value;
and judging that the range value is smaller than a preset range threshold value, and carrying out average treatment on the central illumination intensity of the seedling and the edge illumination intensity of the seedling to obtain the actual illumination intensity of the seedling.
The method and the system have the beneficial effects that: according to the invention, the 3D structure light camera module is used for acquiring the point cloud image of the seedling and uploading the point cloud image to the upper computer for point cloud data analysis processing, so that the height information of the current seedling can be accurately calculated, the illumination intensity required by the current seedling height can be calculated through the target light intensity function, the growth time of the seedling can be shortened by proper illumination intensity, the height information of the seedling can be acquired again at certain intervals, and the corresponding required illumination intensity can be changed in real time according to the height information of the seedling, namely, the traditional condition of applying chemical fertilizer and the like is avoided, and the growth of the seedling is promoted.
Drawings
FIG. 1 is a schematic diagram of the structure of the illumination intensity control system based on the change of seedling growth height of the present invention;
FIG. 2 is a schematic flow chart of the steps of the illumination intensity control method based on the change of the growth height of seedlings according to the invention;
FIG. 3 is a schematic diagram of a manual light control interface in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram of an automatic light control interface according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a platform height adjustment interface according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a heat sink control interface according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a front view of a lamp panel module according to the present invention;
FIG. 8 is a schematic view showing the structure of the culture tray module of the present invention;
FIG. 9 is a schematic view of the back structure of the lamp panel module of the present invention;
description of the drawings: 1. a temperature sensor; 2. a lamp panel; 3. a blue light set; 4. a red light set; 5. a white light lamp set; 6. an illumination sensor; 7. a culture solution inlet of the built-in EC sensor; 8. a heat sink; 9. a rolling pulley; 10. an upper limit of the water level; 11. a lower limit of the water level; 12. a stepping push rod.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples. The step numbers in the following embodiments are set for convenience of illustration only, and the order between the steps is not limited in any way, and the execution order of the steps in the embodiments may be adaptively adjusted according to the understanding of those skilled in the art.
Referring to fig. 1, the invention provides an illumination intensity control system based on seedling growth height change, which comprises a lamp panel module, a heat dissipation module, a temperature sensor module, an illumination sensor module, a 3D structure light camera module, an HMI touch screen module and a culture tray module, wherein the heat dissipation module is arranged at the back of the lamp panel module, the center positions of the front and the back of the lamp panel module are respectively provided with the temperature sensor module, the illumination sensor module, the 3D structure light camera module and the HMI touch screen module are respectively connected with the lamp panel module in a wireless manner, and the culture tray module is positioned under the illumination sensor module, wherein:
the lamp panel module is used for providing illumination, the lamp panel module comprises 12 lamp panels, the arrangement mode of the lamp panels is 3 x 4 distributed arrangement, the size specification of the lamp panels is 20 x 30mm, the illumination angles of the lamp panels are 120 degrees, three LED lamp strains with red, blue and white colors are arranged on each lamp panel, the illumination angles of the lamp beads are 120 degrees, the condition that the lamp bead illumination range covers the whole culture tray at the lowest height can be basically met under the angle, the illumination uniformity is improved, the lamp source loss during edge light filling is reduced, a 24VDC power supply is connected, each color lamp bead in each lamp panel is connected with 6 lamp beads with the same color in series, the lamp beads are arranged at equal intervals, and the maximum light intensity of blue and red spectrums can reach 200 mu mol.m at a position 30cm away from the culture tray -2 ·s -1 About, this distance and light intensity refer to the maximum light quantum flux density value that can be reached when this lamp pearl reaches this height, and 30cm is the fixed height that the artificial light of general plant mill cultivated, and in the white light spectral band, reduce green light content proportion, from traditional red: blue: green=3:1:6 converted to 4:1:1, white light reaching 300 μmol·m 30cm from the culture tray -2 ·s -1 About, the visible spectrum is 360-830NM, in the spectrum, red light and blue light are the most influenced by plants, green light is the least influenced by the visible spectrum, the proportion of three colors of light can be regarded as white light in the traditional sense, the loss power of a lamp panel can be reduced by reducing the proportion of the green light in the white light in the lamp panel, and meanwhile, the efficiency of absorbing available light by seedlings is indirectly increased, so that the energy-saving effect is achieved, and the method is particularly shown in fig. 7;
the heat dissipation module is used for reducing heat energy generated by the lamp panel module when strong light supplementing is started, 2*3 is arranged on the back of the lamp panel, six heat dissipation devices are arranged in total, the problem that excessive heat energy is generated when strong light supplementing is started is solved, a first temperature sensor is arranged on the back of the lamp panel, a second temperature sensor is arranged in the center of the surface of the lamp panel, the temperature sensor collects temperature data of the lamp panel in real time, the data are fed back to the upper computer for difference value calculation through 485, the data are fed back to the control center through an internal temperature field algorithm to determine whether the heat dissipation devices are started, PWM pulse values are calculated through an upper computer algorithm, the heat dissipation rate of the heat dissipation devices is finally controlled through the control center, and energy consumption is saved, and the heat dissipation module is particularly shown in fig. 6 and 9;
the illumination sensor module is used for collecting actual illumination on the surface of the seedling, an embedded first illumination sensor is arranged at a position 16cm away from the bottom surface of the culture tray, a second illumination sensor is arranged at the left end (arranged on an aluminum profile) with the same height, the light intensity value collected each time is the average value of the two illumination sensors, the difference between the central light intensity and the edge light intensity is calculated according to the range in order to reduce the error caused by the difference of the illumination intensity, and when the difference is more than or equal to 10 mu mol.m -2 ·s -1 When the device is used, the difference value is calculated by adjusting the height and the light intensity value of the edge lamp panel unit, so that the range is reduced, as shown in fig. 8;
the 3D structure light camera module is used for collecting the height value of the highest seedling, a 3D structure light camera is arranged at the right end (arranged on an aluminum profile) at a position 16cm away from the bottom surface of the culture tray and used for obtaining seedling growth point cloud information (the height of the highest seedling in a plane is mainly obtained, the height of a lamp panel is more than or equal to the height of the highest seedling), the collecting time is 30 min/time, and the collecting height values are respectively uploaded to an upper computer end and an HMI interface for display;
when point cloud data analysis is performed, point cloud image information of current seedlings is acquired by triggering a right 3D structure camera, environmental data acquisition is performed by utilizing expansion modules such as a temperature sensor and an illumination sensor, the environmental data acquisition is uploaded to an upper computer, the upper computer receives a port trigger signal, the point cloud image information is read, phenotype information such as leaf area and plant height in the point cloud is calculated by utilizing python, and the required height x is obtained by taking the data information into a function algorithm 1 PWM value x 2 Current temperature x 3 Current power loss f 2 (x) Fin operating power f 3 (x)；
The HMI touch screen module is used for selecting different control modes, 12 lamp panels are all independent and independently controllable module units, the control modes comprise a manual selection module unit, corresponding PWM numerical value input control and an automatic control mode of an upper computer algorithm model, and the selection mode is realized in the HMI touch screen in an operation mode, specifically:
when the manual mode is selected, the regulation and control interference in the automatic mode is blocked through the keys, different units can be selected on the screen one by one to set the light intensity value, the required total light intensity can be set, the required light intensity and the height of the platform are led into a binary primary function preset in the controller, the required PWM value is obtained to output the light intensity (if the height is unlimited, the PWM output can be reduced by changing the height according to an internal function model, and therefore the purpose of saving energy is achieved), and the method is particularly shown in fig. 3.
After the automatic mode is selected, according to the set working period of the total lamp panel and the required light intensity mode (gradient dimming or constant light source), the screen is changed into a state display mode, firstly, the equipment acquires the current seedling point cloud image and uploads the current seedling point cloud image to an upper computer for point cloud data analysis processing to obtain the current seedling height information, and the current seedling height information is changed into a target light intensity value function type f 1 (x) Carry-in (where f (x) is the desired intensity value for the target height, x 1 Is the height (cm) and x of the current lamp panel from the seedling 2 For PWM value/light intensity emitted by the lamp panel, x3 is x 1 Temperature value measured by seedling probe at height (. Degree. C.). Times. 2 Power loss f at light intensity value 3 (x) And fin power f 4 (x) Obtaining the obtained proper temperature, height and PWM value under the condition of the lowest power loss, and then issuing instructions to the lower computer through the upper computer to execute x 1 And x 2 As shown in fig. 4 in particular;
the expression of the target light intensity model function is as follows:
f 1 (x)＝ax 1 +bx 2 +cx 3 +d
in the above, f 1 (x) Representing the required light intensity value, x, for the target height 1 Indicating the height x of the current lamp panel from the seedling 2 Representing the PWM duty cycle value, x 3 Represents x 1 The temperature values at height, a, b, c and d respectively represent x obtained by bringing into group 4 1 、x 2 、x 3 F 1 (x) Obtaining;
the expression of the cultivation height and plant light quantum flux density demand model is as follows:
f 2 (x)＝a 1 x 1 +b 1 x 2 +c 1
in the above, f 2 (x) Is the value of the luminous flux density (mu mol m) -2 ·s -1 )，a 1 、b 1 And c 1 By taking in measured values, i.e. a 1 、b 1 And c 1 All are constant coefficients;
the expression of the power loss model is as follows:
f 3 (x)＝k 1 x 2 +M
measuring different duty cycles x with power receptacle 2 Power f lost by lower lamp panel 3 (x) Obtaining k by combining 1 And M, i.e. k 1 And M are constant coefficients;
the expression of the cooling fin operation power loss model is as follows:
f 4 (x)＝k 2 x 3 +b 2 x 4 +c 2
measuring the temperature x of the current seedling height by using a temperature sensor 3 Required maintenance temperature x 4 And the operating power f obtained by the power socket 4 (x) Carried into to obtain k 2 、b 2 And c 2 I.e. k 2 、b 2 And c 2 Are constant coefficients.
The culture tray module is used for placing seedlings to be cultivated.
Referring to fig. 2, the illumination intensity control method based on the change of the seedling growth height includes:
s1, placing seedlings to be cultivated on a cultivation tray, and planting the seedlings in a preset area position under a cultivation room lamp panel;
s2, acquiring the actual growth height of the seedlings by a 3D structured light camera;
s3, according to the actual growth height of the seedlings, adjusting the illumination intensity received by the surfaces of the seedlings to reach illumination supply suitable for the growth height of the seedlings;
s4, acquiring actual illumination intensity of the seedlings through an illumination sensor;
s5, further adjusting the illumination intensity and the height of the lamp panel according to the actual illumination intensity of the seedlings;
s6, when the growth height of the seedlings reaches a preset height threshold value, the seedlings are rotated out of the cultivation room.
Specifically, the height of the lamp panel is adjusted by pushing the lamp panel to rise and fall by the pulse quantity and direction adjusting and controlling signals of the upper computer or the HMI touch screen which are received by the stepping motor, so that the irradiation height of the light source to the culture tray is changed, and the high-speed pulse output port and the direction output port of the PLC are mainly utilized for control.
The content in the method embodiment is applicable to the system embodiment, the functions specifically realized by the system embodiment are the same as those of the method embodiment, and the achieved beneficial effects are the same as those of the method embodiment.
While the preferred embodiment of the present invention has been described in detail, the invention is not limited to the embodiment, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the invention, and these modifications and substitutions are intended to be included in the scope of the present invention as defined in the appended claims.
Claims (8)
1. Illumination intensity control system based on seedling growth altitude variation, a serial communication port, including lamp plate module, heat dissipation module, temperature sensor module, illumination sensor module, 3D structure light camera module, HMI touch-sensitive screen module and cultivate tray module, heat dissipation module installs in the back of lamp plate module, the front of lamp plate module all is provided with temperature sensor module with the central point of back put, illumination sensor module, 3D structure light camera module, HMI touch-sensitive screen module pass through wireless connection with lamp plate module respectively, cultivate tray module and be located under the illumination sensor module, wherein:
the lamp panel module is used for providing illumination;
the heat dissipation module is used for reducing heat energy generated when the lamp panel module starts strong light supplementing;
the illumination sensor module is used for collecting actual illumination of the surface of the seedling;
the 3D structure light camera module is used for collecting the height value of the highest seedling;
the HMI touch screen module is used for selecting different control modes;
the culture tray module is used for placing seedlings to be cultivated.
2. The illumination intensity control system based on seedling growth height variation according to claim 1, wherein the lamp panel module comprises 12 lamp panels, the arrangement mode of the lamp panels is 3 x 4 distributed arrangement, the size specification of the lamp panels is 20 x 30mm, and the illumination angles of the lamp panels are 120 °, wherein:
the lamp panel comprises a red LED lamp group, a blue LED lamp group and a white LED lamp group, each LED lamp group comprises 6 color lamp beads with the same model, the connection mode of each lamp strain is series connection, and the arrangement mode of each lamp strain is in straight line equidistant arrangement;
the maximum illumination intensity of the red lamp beads and the blue lamp beads is 200 mu mol m at the height of 30cm from the culture tray module -2 ·s -1 The maximum illumination intensity of the white lamp beads is 300 mu mol m at a height of 30cm from the culture tray module -2 ·s -1 。
3. A method of controlling a system for controlling illumination intensity based on a change in height of a seedling growth as claimed in any one of claims 1-2, comprising the steps of:
s1, placing seedlings to be cultivated on a cultivation tray, and planting the seedlings in a preset area position under a cultivation room lamp panel;
s2, acquiring the actual growth height of the seedlings by a 3D structured light camera;
s3, according to the actual growth height of the seedlings, adjusting the illumination intensity received by the surfaces of the seedlings to reach illumination supply suitable for the growth height of the seedlings;
s4, acquiring actual illumination intensity of the seedlings through an illumination sensor;
s5, further adjusting the illumination intensity and the height of the lamp panel according to the actual illumination intensity of the seedlings;
s6, when the growth height of the seedlings reaches a preset height threshold value, the seedlings are rotated out of the cultivation room.
4. The method for controlling illumination intensity based on seedling growth height variation according to claim 3, further comprising reducing heat energy generated when the lamp panel starts strong light supplementing through the heat radiation module, and specifically comprising:
the back of the lamp panel is provided with a first temperature sensor, and the center of the surface of the lamp panel is provided with a second temperature sensor;
the temperature sensor collects the temperature data of the lamp panel in real time and feeds the temperature data back to the upper computer through 485 to perform difference calculation, so that a calculation result is obtained;
feeding back the calculation result to the control center through an internal temperature field algorithm;
the control center decides whether to start the heat dissipation device according to the calculation result;
judging that the heat radiating device is started, and calculating a PWM pulse value through an upper computer algorithm;
the control center controls the heat dissipation rate of the heat dissipation device according to the PWM pulse value.
5. The method of claim 4, further comprising selecting a corresponding lamp panel operating mode via an HMI touch screen, the lamp panel operating mode comprising a manual mode and an automatic mode, wherein:
the manual mode can select different lamp plant units to set light intensity values one by one on the HMI touch screen through the regulation and control interference in the key blocking automatic mode, or can set required total light intensity, and the required light intensity and the height of the platform are led into a binary primary function preset in the controller to obtain a required PWM value for light intensity output;
according to the automatic mode, according to the set working period of the total lamp panel and the required light intensity mode (gradient dimming or constant light source), the screen is changed into a state display mode, firstly, the equipment collects the current seedling point cloud image and uploads the current seedling point cloud image to an upper computer for point cloud data analysis processing to obtain the current seedling height information, the current seedling height information is brought into PWM values/the power loss of the light intensity emitted by the lamp panel and the power of a radiating fin through a target light intensity value function, the obtained optimum temperature, height and PWM values under the condition of the lowest power loss are obtained, and then an instruction is issued to a lower computer through the upper computer to execute the regulation and control operation of the current lamp panel distance seedling height and PWM duty ratio value.
6. The method for controlling illumination intensity based on the change of seedling growth height according to claim 5, wherein the expression of the target light intensity value function is specifically as follows:
f 1 (x)＝ax 1 +bx 2 +cx 3 +d
in the above, f 1 (x) Representing the required light intensity value, x, for the target height 1 Indicating the height x of the current lamp panel from the seedling 2 Representing the PWM duty cycle value, x 3 Represents x 1 The temperature values at height, a, b, c and d, respectively, represent x 1 、x 2 、x 3 And f 1 (x) Is a coefficient of (a).
7. The illumination intensity control method based on the change of the growth height of the seedlings according to claim 6, wherein the step of acquiring the actual growth height of the seedlings by the 3D structured light camera specifically comprises:
the 3D structure light camera is arranged at the right end 16cm away from the culture tray;
acquiring seedling growing point cloud information through a 3D structured light camera at intervals of a preset time proportion;
analyzing and calculating the seedling growth point cloud information based on python to obtain actual growth height information of the seedlings;
and uploading the actual growth height information of the seedlings to an HMI touch screen for display, and obtaining the actual growth height of the seedlings.
8. The illumination intensity control method based on the change of the growth height of the seedlings according to claim 7, wherein the step of acquiring the actual illumination intensity of the seedlings by the illumination sensor comprises the steps of:
a first illumination sensor is arranged at a position of 16cm from the bottom surface of the culture tray, and the left end of the same height is provided with the first illumination sensor;
acquiring the central illumination intensity of the seedlings by a first illumination sensor, and acquiring the edge illumination intensity of the seedlings by a second illumination sensor;
performing extremely poor calculation treatment on the central illumination intensity of the seedling and the edge illumination intensity of the seedling to obtain an extremely poor value;
judging the difference value, and compensating the difference value by the illumination intensity of the lamp panel when the difference value is larger than a preset difference threshold value;
and judging that the range value is smaller than a preset range threshold value, and carrying out average treatment on the central illumination intensity of the seedling and the edge illumination intensity of the seedling to obtain the actual illumination intensity of the seedling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211623001.2A CN116097995A (en) | 2022-12-16 | 2022-12-16 | Illumination intensity control method and system based on seedling growth height change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211623001.2A CN116097995A (en) | 2022-12-16 | 2022-12-16 | Illumination intensity control method and system based on seedling growth height change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116097995A true CN116097995A (en) | 2023-05-12 |
Family
ID=86255299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211623001.2A Pending CN116097995A (en) | 2022-12-16 | 2022-12-16 | Illumination intensity control method and system based on seedling growth height change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116097995A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117193437A (en) * | 2023-09-12 | 2023-12-08 | 蒙阴县祥瑞苗木种植专业合作社 | Forestry seedling cultivation system and method |
-
2022
- 2022-12-16 CN CN202211623001.2A patent/CN116097995A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117193437A (en) * | 2023-09-12 | 2023-12-08 | 蒙阴县祥瑞苗木种植专业合作社 | Forestry seedling cultivation system and method |
| CN117193437B (en) * | 2023-09-12 | 2024-03-08 | 蒙阴县祥瑞苗木种植专业合作社 | Forestry seedling cultivation system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101321336B1 (en) | Plant cultivating apparatus | |
| RU2504143C2 (en) | Method and device for using light-emitting diode in greenhouse | |
| CN103135540B (en) | Plant tissue culture environmental information monitoring and simulating system | |
| CN105246322A (en) | Dynamic light recipe for horticulture | |
| CN114208558A (en) | Light supplementing device and method based on thermoluminescent material | |
| CN104756794A (en) | Plant growth box | |
| CN116097995A (en) | Illumination intensity control method and system based on seedling growth height change | |
| US20220256776A1 (en) | Method and system for simulating and implementing horticultural lighting scenarios | |
| CN104054539A (en) | Dynamic light filling control system for plant growth | |
| Mohagheghi et al. | An energy-efficient PAR-based horticultural lighting system for greenhouse cultivation of lettuce | |
| CN105517240B (en) | A kind of LED intelligent Light-control Systems for being conducive to plant growth | |
| CN104913266A (en) | Lamp capable of promoting plant growth and method for promoting plant growth utilizing lamp | |
| CN207560931U (en) | Intelligent plant growth experimental provision | |
| CN105746203A (en) | Greenhouse LED lighting device based on PLC controlling | |
| CN110521676B (en) | A intelligent light filling system for promoting heisui river horsefly spawning rate | |
| CN107258394A (en) | Intelligent plant growth experimental provision and its temperature adjusting method | |
| JP6233623B2 (en) | Light control device for plant growth, light control method, light control program, and data collection device for light control | |
| CN106538257A (en) | A kind of plant cultivation method and system | |
| CN103109702B (en) | Method for controlling rice seedling growth by optical spectrum, and raising spectrum regulating appliance and equipment | |
| CN105961049B (en) | A kind of optomagnetic processing unit of Ultra-weak Bioluminescence research | |
| CN204598834U (en) | A kind of growth chamber | |
| CN115299262A (en) | High-uniformity intelligent plant light supplementing method | |
| KR20200053833A (en) | Plant cultivating apparatus | |
| Tian et al. | Research status and prospect of energy-saving technology of LED light source in plant factory | |
| CN114731858B (en) | LED plant growth lamp for industrialized seedling raising of Quercus mongolica and seedling raising method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |