CN109156196A - A kind of plant light compensation control method and system for shining amount based on cumulative daylight - Google Patents
A kind of plant light compensation control method and system for shining amount based on cumulative daylight Download PDFInfo
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- CN109156196A CN109156196A CN201811169715.4A CN201811169715A CN109156196A CN 109156196 A CN109156196 A CN 109156196A CN 201811169715 A CN201811169715 A CN 201811169715A CN 109156196 A CN109156196 A CN 109156196A
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
Abstract
The invention belongs to horticultural environments control technology fields, specifically disclose a kind of plant light compensation control method and system based on cumulative daylight according to amount.The method cumulative daylight according to needed for plant according to amount and light application time calculate it is average per hour needed for when accumulate the quantity of illumination；And start to monitor the intensity of illumination of plant canopy after sunrise, calculate day part and its before needed for implants of all periods when accumulation the sum of quantity of illumination and when the sum of accumulation quantity of illumination for actually receiving, according to both diversity judgement whether need light filling and calculate light filling duration.The quantity of illumination needed for the method for the invention can effectively ensure plant acquisition normal growth, while guaranteeing that the artificial lighting of supplement can be utilized by plant efficient.The present invention goes back while providing a kind of plant light compensation control system based on cumulative daylight according to amount, can be effectively reduced light filling operating cost, improve light filling economic benefit.
Description
Technical field
The invention belongs to horticultural environments control technology fields, and in particular to a kind of plant light compensation that amount is shone based on cumulative daylight
Control method and system.
Background technique
In winter and under the conditions of the low temperature and poor light in early spring, frequently with artificial light sources such as LED light, high-pressure sodium lamps in furnished equipments
Light filling regulation is carried out, to promote the accumulation of plant photosynthesis product, improves facility plant products and quality.Inside horticultural facility
Natural lighting environment is changed greatly with factors such as weather and times, the fixed-illumination intensity formula timing regulation light compensating lamp usually used
Light compensation method it is more extensive, be difficult to control facility in the accumulation quantity of illumination (intensity of illumination × light application time), accumulate the quantity of illumination
It is difficult to effectively meet plant growth light requirement when very few, the accumulation quantity of illumination generates unnecessary energy consumption again when excessive, reduce light filling
Economic benefit.Carrying out scientific and reasonable light filling using intelligent control strategy according to plant illumination demand is to improve light filling economic benefit
Important channel.
The Chinese patent application of Publication No. CN103987170A discloses a kind of greenhouse tomato benefit based on growth model
Light regulates and controls method and system, when intensity of illumination is lower than light saturation point at temperature and carbon dioxide conditions locating for tomato, uses
LED light source carries out light filling, until intensity of illumination reaches the light saturation point of tomato leaf.The China of Publication No. CN107291126A
Patent application discloses a kind of facility light supplement control method and system based on crop demand, by establishing crop in different temperatures
With the light requirement model under the conditions of gas concentration lwevel, predicts the corresponding illumination intensity value of crop maximum photosynthesis rate, calculate crop
The light filling intensity needed, using the intensity of illumination of PWM count word light modulation real-time feedback control LED light source.In above two method
Optimal light saturation point and maximum photosynthesis rate are not only related with crop growth stage, temperature and carbon dioxide, also with kind, opposite
The many factors such as humidity, nutrition condition are related, carry out with the optimal light saturation point model and maximum photosynthesis rate model of building
The difficulty of light filling regulation is larger；And crop canopies intensity of illumination is set to reach the i.e. photosynthetic speed of light saturation point using artificial light source light filling
When rate maximum, crop is extremely low to the optical energy utilization efficiency of supplement light, will cause a large amount of wastes of the energy.
The Chinese patent application of Publication No. CN104488582A discloses a kind of hothouse plants dynamic light supplement control method,
When the practical fluorescence parameter of plant is not in preset threshold interval, the illumination of LED light source is controlled according to practical fluorescence parameter
Intensity and light quality carry out light filling.Although chlorophyll fluorescence parameters are illuminated by the light the influence of intensity and light quality, it is difficult to pass through chlorophyll
Fluorescence parameter infers the intensity of illumination and light quality that plant needs, and the photosynthetic electron transfer situation of chlorophyll fluorescence parameters measurement is not
The fixed CO of photosynthesis can be represented2Actual efficiency or actual photosynthetic efficiency.The China of Publication No. CN107404787A is specially
Benefit application discloses a kind of LED light filling control system and control method based on actual photosynthesis efficiency, is dimmed by PWM count word real
When adjust LED light supplement lamp brightness, and then regulate and control plant leaf blade the practical Photochemical Efficiency of PS II, keep it in setting value,
Realization makes plant reach maximum to the utilization rate of illumination under the premise of guaranteeing photosynthetic rate.But the PS II of blade is practical photochemical
It is not only related with intensity of illumination to learn efficiency, is also influenced by many factors such as temperature and humidity, leaf nutrition situations, it is strong by illumination merely
The effect that degree adjusts the practical Photochemical Efficiency of PS II needs to be investigated.Moreover, what above-mentioned light supplement control method was related to is photosynthetic
Rate and the detection of light quantum utilization efficiency belong to the other accurate measurement of laboratory level, can not achieve Dynamic Non-Destruction Measurement, and required
Information collecting device it is expensive, it is difficult to apply production scene carry out light filling control.Real-time control intensity of illumination needs multiple
Miscellaneous intensity of illumination regulating device and certain types of light compensating lamp substantially increase the complexity and cost of light-supplementing system, drop
The low reliability and versatility of system, increases popularization and application difficulty.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of plant light compensation control based on cumulative daylight according to amount
Method and system, described method and system can ensure plant obtain normal growth needed for the quantity of illumination under the premise of, protect simultaneously
The artificial lighting of card supplement can be utilized by plant efficient, avoid the waste of the energy, carry out Precision measurement without expensive device.
To achieve the goals above, The technical solution adopted by the invention is as follows:
In a first aspect, the present invention provides a kind of based on cumulative daylight according to the plant light compensation control method of amount, comprising:
The cumulative daylight according to needed for plant according to amount and light application time calculate it is average per hour needed for when accumulate the quantity of illumination；
The intensity of illumination for starting monitoring plant canopy or function blade face after sunrise calculates the accumulative reality received of per period
When accumulate the quantity of illumination；It is preferred that with per hour for a period；
When this period obtained in all periods with before it is practical when accumulation the sum of quantity of illumination be less than the corresponding period needed for
When accumulation the sum of quantity of illumination when, light filling is opened in subsequent period, does not otherwise need light filling；When light filling, the light of required supplement
According to amount be equal to plant the sum of accumulation quantity of illumination when this period is required in all periods with before subtract it is real according to monitoring result
When accumulation the sum of the quantity of illumination for the correspondence period that border obtains.
Wherein, cumulative daylight needed for the plant is obtained according to amount and light application time according to test or experience, and following table is enumerated
The light requirement data of Vegetable and flower plant.It will be appreciated by those skilled in the art that tribute of the present invention to the prior art
It offers cumulative daylight needed for not proposing different plants and shines amount and light application time, be related in the method for the invention and system
Cumulative daylight needed for the plant is also not limited thereto according to amount and light application time.Those skilled in the art can be according to reality
Demand, for different objects, cumulative daylight needed for obtaining different plants is according to amount and light application time.
Further, light quantum sensor is set in the integral shroud face of phytobiocoenose or the blade face of major function leaf, monitoring is planted
The intensity of illumination that object canopy or functional leaf blade face obtain.
Further, when light filling, can be used light filling between strain, top light filling, or a combination of both synthesis light filling.
It should be noted that intensity of illumination when light filling is by the factors shadow such as light compensating lamp quantity, luminous efficiency, installation site
It rings, ordinary circumstance, after determining above-mentioned factor, the intensity of illumination of light filling is already fixed, and the light filling amount in per period is by fixing
Light filling intensity (intensity of illumination of light filling) determined multiplied by the lighting time that can control.Preferably, light filling between strain
Light filling intensity suggestion is not less than 80 μm of ol/m2/ s, and/or, top light filling intensity is then suggested not less than 150 μm of ol/m2/s。
Based on preceding method provided by the invention, invention also provides a kind of based on cumulative daylight according to the plant benefit of amount
Optimizing Control System, to realize preceding method.
The system can reduce the complexity of light filling control system, improve its reliability and versatility.
Specifically, the plant light compensation control system based on cumulative daylight according to amount includes:
(1) plant light requirement database, cumulative daylight needed for storing different plants shine amount and suitable light application time data,
It is called for intelligent decision unit.
(2) intensity of illumination monitoring unit passes through the illumination on the real-time herborization canopy of light quantum sensor or function blade face
Intensity is used for intelligent decision unit.
(3) intelligent decision unit receives the data that plant light requirement database and intensity of illumination monitoring unit provide, with one
Hour be a period, calculate day part implants needed for when accumulation the quantity of illumination and actually receive when accumulate the quantity of illumination, statistics
Accumulated when needed for day part and its before implants of all periods the sum of quantity of illumination with actually receive when the accumulation quantity of illumination it
With, judge whether to need light filling and calculate light filling duration, to switch execution unit issue control signal.
(4) execution unit is switched, according to the control signal that intelligent decision unit issues, makes and opens or cut off light compensating lamp electricity
The movement in source.
(5) light compensating lamp provides the plant growth lamp of photosynthetically active radiation, lights or puts out under the control of switch execution unit
It goes out.
Beneficial effects of the present invention include at least:
(1) the present invention is based on the cumulative daylights needed for plant carries out light filling at times according to amount, can effectively ensure that plant is obtained
The quantity of illumination needed for obtaining normal growth guarantees that the artificial lighting of supplement can be utilized by plant efficient, avoids light filling too little or too much
When caused by plant products reduce and energy waste problem.
(2) present invention only achieve that dynamic monitoring and feedback control with light quantum sensor, by day part and its it
Preceding all period implants are practical obtain when the sum of accumulation quantity of illumination with it is required when the sum of accumulation quantity of illumination comparison, control mend
The lighting time of light lamp or quantity of turning on light, and then Effective Regulation light filling amount, system is simple and reliable, versatile, is suitable for control
Light filling operating cost can be effectively reduced in a plurality of types of light compensating lamps, improves light filling economic benefit.
Detailed description of the invention
Fig. 1 is the plant light compensation control method and system schematic based on cumulative daylight according to amount.
Fig. 2 is the tomato canopy intensity of illumination that system monitoring arrives in the embodiment of the present invention 1.
Fig. 3 is the when accumulation quantity of illumination schematic diagram that tomato canopy receives in the embodiment of the present invention 1.
Fig. 4 is the cucumber canopy intensity of illumination that system monitoring arrives in the embodiment of the present invention 2.
Fig. 5 is the when accumulation quantity of illumination schematic diagram that cucumber canopy receives in the embodiment of the present invention 2.
Fig. 6 is the schematic diagram that light filling influences cucumber yield in the embodiment of the present invention 2.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated, but the present invention is limited in any way,
Based on present invention teach that any changes and modifications done, all belong to the scope of protection of the present invention.
It is as shown in Figure 1 according to the plant light compensation control system of amount based on cumulative daylight used in following embodiment, comprising: plant
Light requirement database 101, intensity of illumination monitoring unit 102, intelligent decision unit 103, switch execution unit 104 and light compensating lamp
105。
Plant light requirement database 101 stores the cumulative daylight that different plants need and shines amount and suitable light application time data.
The intensity of illumination data on 102 herborization canopy of intensity of illumination monitoring unit or function blade face, light quantum sensor are placed on
At plant canopy or function blade face can sufficiently reflect the variation for the intensity of illumination that plant receives.Intelligent decision unit 103
The cumulative daylight provided according to plant light requirement database 101 calculates plant averagely per hour according to amount and suitable light application time data
The taken accumulation quantity of illumination calculates day part implants according to the intensity of illumination data that intensity of illumination monitoring unit 102 monitors
Actually receive when accumulate the quantity of illumination, and according to day part and its before needed for implants of all periods when the accumulation quantity of illumination it
With with actually receive when accumulation the sum of quantity of illumination difference, judge whether to need light filling and calculate lighting time, and to switch
Execution unit 104 issues the signal for lighting or extinguishing light compensating lamp 105.
Embodiment 1
Tomato (good harvest (74- of the present embodiment to be cultivated in man of Beijing little Tang mountain country agricultural science and technology Demonstration Garden attached-greenhouse
560), Dutch Rake Si Wang seeds company) it is experimental subjects, light filling regulation is carried out to it using system of the present invention, and select
The light filling data on December 25th, 2017 are taken to illustrate system light filling effect.
Tomato was colonized in the greenhouse on September 11st, 2017, north-south ridging, every two row of ridge, and two rows are interspersed, spacing in the rows
25cm, line-spacing 50cm, planting density are about 6 plants/m2.Tomato is in fruiting period, and required cumulative daylight is not less than according to amount
14.4mol/m2/ d, light application time take 16h/d, and calculating the required when accumulation quantity of illumination is 0.9mol/m2/h.Sunrise time 7: 34
Point, for the 1st hour, to be the 16th hour when 22, be set according to intensity of illumination monitoring unit in the integral shroud face of tomato group when 7
The intensity of illumination (Fig. 2) of the tomato canopy for the light quantum sensor acquisition set calculates that tomato canopy in each period is practical to be received
When accumulate the quantity of illumination (Fig. 3), it is small that the sum of quantity of illumination is accumulated when tomato is practical in certain period and its all periods before receives
When required when the sum of accumulation quantity of illumination, start light filling in subsequent period.Light compensating lamp is (red using White LED plant growth lamp
The ratio of coloured light and blue light is 0.9), to be located above tomato canopy, the height apart from canopy is adjustable, in the benefit of canopy
Luminous intensity is 250 μm of ol/m2/ s, the time that light compensating lamp is opened in each hour indicate as follows:
| Period | When 8 | When 9 | When 10 | When 11 | When 12 | When 13 | When 14 | When 15 |
| Lighting time (s) | 3600 | 3581 | 3332 | 2676 | 1847 | 1526 | 2318 | 2447 |
| Period | When 16 | When 17 | When 18 | When 19 | When 20 | When 21 | When 22 | When 23 |
| Lighting time (s) | 2653 | 3094 | 3456 | 3598 | 3600 | 3600 | 3600 | 3600 |
Using portable photosynthetic instrument (LI-6400, LI-COR company of the U.S.) to the tomato leaf for receiving this system light filling
Net Photosynthetic Rate, stomatal conductance, intercellular CO2The photosynthesis characteristics index such as concentration, transpiration rate measures, with the tomato of not light filling
Blade carries out significance test of difference as control, and to the two, as a result as shown in the table:
Note: different letters, which represent, in same column significant difference, and NS indicates that there was no significant difference (P=0.05).
The Net Photosynthetic Rate and stomatal conductance that receive the tomato leaf of light filling are noticeably greater than the tomato leaf of not light filling, and two
The intercellular CO of person2Difference is not significant between concentration and transpiration rate, illustrates that light filling has effectively facilitated the stomatal opening of tomato leaf,
Significantly improve the Net Photosynthetic Rate of tomato leaf.
Embodiment 2
Beijing little Tang mountain country family agricultural science and technology Demonstration Garden attached-greenhouse in using this light compensation method to cultivated cucumber into
The regulation of row light filling, as a comparison with the timing light compensation method that usually uses, and using the processing of not light filling as compareing.Three leaves are wholeheartedly yellow
Melon seedling (Xia Zhiguang (22-35), Dutch Rake Si Wang seeds company) was colonized in the greenhouse on 2 10th, 2018, north-south
Ridging, every two row of ridge, two rows are interspersed, and spacing in the rows 25cm, line-spacing 50cm, planting density are about 6 plants/m2.This system light filling control
Method processed: by taking on April 12nd, 2018 as an example, cucumber is in fruiting period, and required cumulative daylight is not less than 11.5mol/m according to amount2/ d,
Light application time takes 16h/d, and calculating the required when accumulation quantity of illumination is 0.72mol/m2/h.6 points of sunrise time 00 minute, it is when with 6
1st hour is the 16th hour, the light quantum being arranged according to intensity of illumination monitoring unit in the integral shroud face of cucumber group when 21
The intensity of illumination (Fig. 4) of the cucumber canopy of sensor acquisition calculate cucumber canopy in each period it is practical receive when accumulate illumination
It measures (Fig. 5), when accumulating the sum of quantity of illumination when cucumber is practical in certain period and its all periods before receives and being less than required
When accumulating the sum of quantity of illumination, start light filling in subsequent period, light compensating lamp is using red white LEDs plant growth lamp (red light and blue
The ratio of light be 1.2), cucumber canopy light filling intensity be 200 μm of ol/m2/ s, the time that light compensating lamp is opened in each hour
It is following to indicate:
Timing light supplement control method: red white LEDs plant growth lamp (ratio of red light and blue light for 1.2) is used to mend
Light is 200 μm of ol/m in the light filling intensity of cucumber canopy2/ s, in two periods of daily 6:00-9:00 and 17:00-22:00
Interior unlatching, daily light filling 8 hours.
The Net Photosynthetic Rate of cucumber leaves, stomata are led using portable photosynthetic instrument (LI-6400, LI-COR company of the U.S.)
Degree, intercellular CO2The photosynthesis characteristics index such as concentration, transpiration rate measures, as a result as shown in the table.
Note: different letters, which represent, in same column significant difference, and NS indicates that there was no significant difference (P=0.05).
Light filling can significantly improve the Net Photosynthetic Rate of cucumber leaves, and the net light of the cucumber leaves using this system light filling
Rate is closed significantly greater than with the Net Photosynthetic Rate of the cucumber leaves of timing light filling.
The single plant cumulative production (Fig. 6) of cucumber, the cucumber of this system light filling have been counted during April 10 to April 30
The less light filling processing of single plant cumulative production improves about 23.3%, improves about 13.3% compared with timing light filling method, obvious effect of increasing production.
Above content is only citing made for the present invention and explanation, affiliated those skilled in the art are to being retouched
The specific embodiment stated does various modifications or additions or is substituted in a similar manner, and without departing from invention or surpasses
More range defined in the claims, is within the scope of protection of the invention.
Claims (6)
1. a kind of plant light compensation control method for shining amount based on cumulative daylight characterized by comprising
The cumulative daylight according to needed for plant according to amount and light application time calculate it is average per hour needed for when accumulate the quantity of illumination；
The intensity of illumination for starting to monitor plant canopy after sunrise, calculate per period it is accumulative receive it is practical when accumulate the quantity of illumination；
It is preferred that with per hour for a period；
When obtained in this period and all periods before it is practical when accumulation the sum of quantity of illumination be less than needed for the corresponding period when tire out
When the sum of product quantity of illumination, light filling is opened in subsequent period, does not otherwise need light filling.
2. the method according to claim 1, wherein light quantity is arranged in the integral shroud face of phytobiocoenose or function blade face
The intensity of illumination of sub- sensor monitoring plant canopy.
3. the method according to claim 1, wherein the quantity of illumination of required supplement is equal to plant at this when light filling
Accumulated when period is with needed for implants of all periods before the sum of quantity of illumination subtract according to monitoring result it is practical receive it is corresponding
When accumulation the sum of quantity of illumination of period.
4. according to the method described in claim 3, it is characterized in that, the light filling intensity of light filling is not less than 80 μ between strain when light filling
mol/m2/ s, and/or, top light filling intensity is then not less than 150 μm of ol/m2/s。
5. a kind of plant light compensation control system for shining amount based on cumulative daylight, which is characterized in that the system comprises:
(1) plant light requirement database: cumulative daylight needed for storing different plants is determined according to amount and light application time data for intelligence
Plan cell call；
(2) intensity of illumination monitoring unit: by the real-time herborization canopy of light quantum sensor or the intensity of illumination on function blade face,
It is used for intelligent decision unit；
(3) intelligent decision unit: the data that plant light requirement database and natural lighting monitoring unit provide are received, with one hour
For a period, when calculating needed for day part implants the accumulation quantity of illumination and actually receive when accumulate the quantity of illumination, when counting each
Section and its before needed for implants of all periods when accumulation the sum of quantity of illumination and when the sum of the accumulation quantity of illumination actually received, sentence
It is disconnected whether to need light filling and calculate light filling duration, control signal is issued to switch execution unit；
(4) switch execution unit: the control signal issued according to intelligent decision unit is made and opens or cut off light compensating lamp power supply
Movement；
(5) light compensating lamp: providing the plant growth lamp of photosynthetically active radiation, lights or extinguishes under the control of switch execution unit.
6. system according to claim 5, which is characterized in that the system is for realizing any one of Claims 1 to 4 institute
The method stated, suitable for the application for promoting gardening plant to grow.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811169715.4A CN109156196B (en) | 2018-10-08 | 2018-10-08 | Plant light supplement control method and system based on daily accumulated illumination quantity |
| PCT/CN2019/083616 WO2020073635A1 (en) | 2018-10-08 | 2019-04-22 | Method and system for supplemental lighting control for plant based on daily accumulated light exposure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811169715.4A CN109156196B (en) | 2018-10-08 | 2018-10-08 | Plant light supplement control method and system based on daily accumulated illumination quantity |
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| CN109156196B CN109156196B (en) | 2020-11-27 |
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| WO2020073635A1 (en) * | 2018-10-08 | 2020-04-16 | 中国农业大学 | Method and system for supplemental lighting control for plant based on daily accumulated light exposure |
| CN112868435A (en) * | 2021-01-14 | 2021-06-01 | 同济大学 | NSGA-II-based blueberry greenhouse light and temperature coordination optimization method |
| CN113317058A (en) * | 2021-05-11 | 2021-08-31 | 深圳市识农智能科技有限公司 | Light supplementing method and device for dragon fruit growth, terminal and readable storage medium |
| CN113994197A (en) * | 2019-04-03 | 2022-01-28 | 洛马斯格罗控股有限公司 | Thermal image analyzer for crops |
| CN113994829A (en) * | 2021-11-19 | 2022-02-01 | 国网甘肃省电力公司电力科学研究院 | LED light supplement lamp operation regulation and control method considering time shifting and cost factors |
| CN114258792A (en) * | 2021-11-17 | 2022-04-01 | 北京市农林科学院智能装备技术研究中心 | Light supplementing method and device suitable for greenhouse crops |
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| WO2020073635A1 (en) | 2020-04-16 |
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