CN108522091A - A kind of household growth chamber and its multiobjective optimization control method - Google Patents

A kind of household growth chamber and its multiobjective optimization control method Download PDF

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Publication number
CN108522091A
CN108522091A CN201810109499.8A CN201810109499A CN108522091A CN 108522091 A CN108522091 A CN 108522091A CN 201810109499 A CN201810109499 A CN 201810109499A CN 108522091 A CN108522091 A CN 108522091A
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growth
concentration
controller
heating wire
out instruction
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CN108522091B (en
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王新忠
洪亚杰
陈健
卢青
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Jiangsu University
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Jiangsu University
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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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/16—Dismountable or portable greenhouses ; Greenhouses with sliding roofs
    • 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
    • A01G7/02—Treatment of plants with carbon dioxide
    • 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
    • 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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • 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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
    • A01G9/246—Air-conditioning systems
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
    • G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Forests & Forestry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Botany (AREA)
  • Ecology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Greenhouses (AREA)
  • Cultivation Of Plants (AREA)

Abstract

The invention discloses a kind of household growth chamber and its multiobjective optimization control method, which is made of control room and growth room, and growth room is provided with LED light source, supply fan, scavenger fan, heating wire, CO2Access hose, indoor temperature and humidity sensor and CO2Sensor, growth chamber interior walls post masking foil, and LED light source is placed at the top of growth room, and supply fan, scavenger fan are located at growth chamber interior walls, heating wire, CO2Access hose is located in partition groove；Air switch, Switching Power Supply, status indicator lamp, controller, timer switch, CO is arranged in control room2Steel cylinder, pressure-regulating valve, CO2Solenoid valve and audible-visual annunciator are separated control room and growth room using partition board, and controller selects corresponding regulation and control scheme according to the data that sensor is passed to, and CO in case is heated, cooled down, dehumidified and maintained to growth case2Balance, meet the environmental requirement of plant growth, improve the quality of the growth efficiency and crop of growth case.

Description

A kind of household growth chamber and its multiobjective optimization control method
Technical field
The invention belongs to plant growth technology field, more particularly to a kind of household growth chamber and its multiple-objection optimization control Method processed.
Technical background
With the rapid development of global economy, the continuous improvement of living standards of the people, balcony agricultural is just rapidly growing.Plant Grow case because its equipment is simple, it is easy to control and obtain public favor.The plant growth environment external dependent on it, such as light According to, temperature, humidity, CO2The environmental factors such as concentration, in case the fluctuation of environment directly affect the growth of plant, development, affect The yield and quality of plant adjusts environmental factor in growth case and is of great significance to meet plant growth.
In the prior art, as Chinese patent (CN201310468423.1) passes through electric heater, compressor, humidifier, interior The execution parts such as outer circulation wind turbine, circulating pump realize humiture, illumination, CO in growth case2The comprehensive control of concentration and nutrient solution System.However this growth chamber cost is higher, takes up a large area, and is suitble to be factory produced, and is not suitable for average family and uses.Separately Outside, illumination in case, temperature, humidity, CO are ignored on existing plant growth box control method2There are strong phase interactions between concentration With, non-linear, multiple constraint and conflicting relationship, inevitably cause to adjust not in time, energy dissipation, this is in growth case Control is put forward higher requirements.
Invention content
The present invention provides a kind of household growth chambers to be met and be planted by the intelligent control to growing case internal environment The environmental requirement of object growth improves the quality of the growth efficiency and crop of growth case；The present invention also provides the growth chambers Multiobjective optimization control method, user according to growth chamber implants variety type be arranged illumination, temperature, humidity, CO2It is dense The boundary condition of degree makes illumination, heating, cooling, dehumidifying and CO while ensureing plant growth2Input quantity reaches minimum Change.
A kind of household growth chamber includes that the control room being divided by partition board and growth room, growth room are provided with LED light Source, supply fan, scavenger fan, heating wire, CO2Access hose, indoor temperature and humidity sensor and CO2Sensor, wherein LED light Source, scavenger fan are placed at the top of growth room, and supply fan is located on growth room's lower sides, indoor temperature and humidity sensor and CO2 Sensor is mounted in growth chamber interior walls, CO2Access hose is fixed in the square groove on partition board, and heating wire is fixed on partition board On U-shaped groove in；Having air switch, Switching Power Supply, status indicator lamp, controller, timer switch, CO is arranged in control room2 Steel cylinder, pressure-regulating valve, CO2Solenoid valve and audible-visual annunciator, CO2Steel cylinder outlet installing pressure-regulating valve, controller pass through air Switch, Switching Power Supply connect external power supply；Grow installation outdoor temperature humidity sensor and liquid crystal display on case outer side surface.
In said program, universal wheel is installed in the growth bottom portion, and the heating wire is Aludirome heating wire or nickel Evanohm heating wire, the CO2Access hose is 8-15mm diameter band tubings, and circular through hole, CO are provided on the partition board2It connects Enter hose and is connected to CO across circular through hole2Steel cylinder, heating wire are connected to controller, the audible-visual annunciator across circular through hole It is made of LED light and buzzer, the U-shaped depth of groove is equal to heating wire diameter, and the square groove depth is equal to CO2 Hose diameter is accessed, the plant growth box body iron sheet is internally provided with the polyurethane material insulation of 10-15mm thickness, described Growth chamber internal surface posts tinfoil paper.
A kind of control method of household growth chamber, using following steps：
Step 1) presses Switching Power Supply, and status indicator lamp is bright, and growth case enters automatic control state；
Step 2) passes through Temperature Humidity Sensor, CO2Concentration sensor acquires humiture and CO current inside and outside growth room2It is dense Degree, and transfer data to controller；
Step 3), after the information that controller receives, select fan in corresponding measure adjustment growth case, heating wire and CO2The working condition of solenoid valve realizes automatically controlling for the environment to growing case.
Further, corresponding measure is specially：Growth room's ring is defined according to specific growth crop and growth phase The boundary condition of growth chamber is arranged in the boundary condition in border：Daytime maximum temperature Tmax, minimum temperature Tmin, highest humidity Rmax, minimum humidity Rmin, highest CO2Concentration Cmax, minimum CO2Concentration Cmin, corresponding night boundary condition is tmax、tmin、rmax、 rmin、cmax、cmin, Temperature Humidity Sensor, CO2Sensor acquires indoor temperature, humidity, CO by interval of time p2Concentration, outdoor Temperature, humidity, and handled obtained data transmission is measured to controller, controller is more than according to temperature more than humidity CO2The control priority orders of concentration, analyze the data transmitted, control heating wire, supply fan, scavenger fan, CO2 Electromagnetic valve work, specific rate-determining steps：
S1. as temperature sensor measurement indoor temperature T >=Tmax, controller sends out instruction unpack intake and exhaust fan, to growth Room cools down, and works as temperatureWhen, controller sends out instruction and stops fan work；
S2. as temperature sensor measurement indoor temperature T≤Tmin, consider CO in growth room2Concentration：
1) work as CO2Concentration Cmin＜ C ＜ CmaxWhen, controller sends out instruction control heating wire works, works as indoor temperature When controller send out instruction stop heating wire works；
2) work as CO2Concentration C≤Cmin, controller, which is sent out, instructs control heating wire work, opens simultaneously CO2Solenoid valve is passed through pure Net industrial CO2, work as indoor temperatureWhen, controller sends out instruction and stops heating wire works；Work as growth room Interior CO2ConcentrationWhen, controller sends out instruction and closes CO2Solenoid valve；
S3. as temperature sensor measurement indoor temperature Tmin＜ T ＜ Tmax, indoor humidity is considered first：1) indoor humidity Rmin ＜ R ＜ Rmaxx, further consider interior CO2Concentration, A. work as CO2Concentration Cmin＜ C ＜ CmaxWhen, controller does not send out any order； B. work as CO2Concentration C≤Cmin, need to further consider outdoor temperature Tout, a. works asController sends out instruction and beats Open CO2Solenoid valve is passed through pure industrial CO2, as CO in growth room2ConcentrationWhen, controller sends out instruction Close CO2Solenoid valve；b.Controller sends out instruction unpack supply fan and scavenger fan is aerated and changes Gas supplements CO2, while the ventilation time is recorded, controller sends out instruction stopping supply fan and scavenger fan work after t minutes Make；2) indoor humidity R >=Rmax, further consider interior CO2Concentration, A. work as CO2Concentration Cmin＜ C ＜ CmaxWhen, further consider Outdoor temperature Tout, a. works asController sends out instruction unpack supply fan and scavenger fan is aerated and changes Gas dehumidifies, while recording the ventilation time, and controller sends out instruction stopping supply fan and scavenger fan work after t minutes Make；B. whenController sends out instruction control heating wire works and dehumidifies, whenWhen, control Device processed sends out instruction and stops heating wire works；B. work as CO2Concentration C ＜ Cmin, further consider outdoor temperature Tout, a.Controller sends out instruction unpack supply fan and scavenger fan is aerated ventilation and is dehumidified and introduced Outdoor CO2, while the ventilation time is recorded, controller sends out instruction stopping supply fan and scavenger fan work after t minutes Make；B. whenController send out instruction control heating wire works carry out dehumidifying open simultaneously CO2Solenoid valve is logical Enter pure industrial CO2, whenWhen, controller sends out instruction and stops heating wire works, as CO in growth room2It is dense DegreeWhen, controller sends out instruction and closes CO2Solenoid valve；
S4. corresponding night rate-determining steps are consistent with daytime, need to only change growth indoor temperature, humidity and CO2Concentration The preset value of boundary condition.
The beneficial effects of the invention are as follows：Individually LED light source is controlled using timer switch, it can be according to plant variety Type and residing growth phase conveniently set up daily light irradiation time and illumination number, and control is reliable, safe, simplified It controls program and manufacturing cost reduces, consider growth case internal and external temperature, humidity, CO2Concentration information, according to two priority classes Growth chamber ventilated heats and is passed through CO2Time improves heater strip and CO2CO in steel cylinder2Service efficiency；Real-time display life simultaneously Environmental information inside long case, compact, flexible function simple for structure is comprehensively and convenient for extension.
Description of the drawings
Fig. 1 is the structure chart of growth chamber；
Fig. 2 is growth chamber partition board notch arrangement figure；
Fig. 3 is growth chamber control structure connection diagram；
Fig. 4 is growth chamber environment dynamic model figure；
Fig. 5 is hythergraph in growth chamber.
In figure：1. growth chamber；2. control room；3. partition board；4. supply fan；5. growth room；6. potted plant；7. Room Interior Temperature Humidity Sensor；8.LED light sources；9. scavenger fan；10.CO2Sensor；11.CO2Access hose；12. heating wire；13. Timer switch；14. status indicator lamp；15. air switch；16. universal wheel；17. Switching Power Supply；18. controller；19. acousto-optic Alarm；20.CO2Solenoid valve；21. pressure-regulating valve；22.CO2Steel cylinder；23 outdoor temperature humidity sensors；24. liquid crystal display； 25. external power supply；26. circular through hole；27. square groove；28.U connected in stars.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining the present invention, not For limiting the present invention.
As shown in Figure 1, growth chamber 1 is made of control room 2 and growth room 5,1 outer surface of growth chamber is by 1-2mm Thick iron sheet is made, and surface carries out spray painting processing, and iron sheet is internally provided with the polyurethane material insulation of 10-15mm thickness, poly- ammonia The seam crossing of ester thermal insulation material is sealed processing with glue-leakage-resistant；Polyurethane heat insulation material side is Nian Jie with iron sheet, towards growth 5 inner surface of room posts masking foil, and to improve the utilization rate of light, growth room 5 is separated with control room 2 using partition board 3, reduces growth The foamed plastics of 10mm thickness is posted in interference of the room 5 to control, 3 lower surface of partition board, improves heating and the heat insulation effect of heating wire 12, It grows installation outdoor temperature humidity sensor 23 and liquid crystal display 24, bottom on 1 outer side surface of case and universal wheel 16 is installed.
Growth room 5 is provided with potted plant 6, LED light source 8, supply fan 4, scavenger fan 9, heating wire 12, CO2Access Hose 11, indoor temperature and humidity sensor 7 and CO2Sensor 10, LED light source 8 is placed at the top of growth room, by multiple diodes of giving out light Composition, LED light source 8 are individually controlled by timer switch 13, can be according to plant variety type and residing growth phase easily Daily light irradiation time and illumination number are set；Supply fan 4 is located on 5 lower sides of growth room, and extraneous air is blown into room It is interior, it is used in combination with the scavenger fan 9 at the top of growth room, promotes air flowing, risen under certain condition by ventilation To reduction indoor temperature and humidity and supplement CO2Effect；Heating wire 12 is fixed in partition board U-shaped groove 28, and connection controller 18 is simultaneously It is connected to earth leakage protective device, powers on when 5 temperature is less than preset value in growth room and quickly improves indoor temperature；The heating wire 12 For Aludirome heating wire or nichrome heating wire, cost of equipment is low, and preheating time is short and controlling is good；CO2It accesses soft Pipe 11 is fixed in partition board square groove 27, and Single port connects CO2Steel cylinder, another port are blocked, the CO2Accessing hose 11 is 8-15mm diameter rubber tubes open a hole every 100-200mm, promote uniformly diffusion；Indoor temperature and humidity sensor 7 and CO2It passes Sensor 10 is mounted on 5 inner wall intermediate altitude of growth room, measures indoor temperature and humidity and CO in real time2Concentration, and pass to controller 18.
The setting of control room 2 air switch 15, Switching Power Supply 17, status indicator lamp 14, controller 18, timer switch 13, CO2Steel cylinder 22, pressure-regulating valve 21, CO2Solenoid valve 20, audible-visual annunciator 19, CO2The outlet of steel cylinder 22 installing pressure-regulating valve 21, By CO2Pressure discharges after adjusting to 0.1-0.15MPa, reconnects CO2Solenoid valve 20, according to indoor CO2What sensor 10 detected Concentration and aimed concn requirement, outdoor temperature it is relatively low be not suitable for means of ventilation improve CO2CO is controlled when concentration2Solenoid valve 20 start, and pass through CO2Access hose 11 is passed through growth room 5, CO in guard box2Balance.
It is recessed it to be provided with circular through hole 26, square groove 27 and U-shaped such as Fig. 2 growth chamber partition board notch arrangement figures, on partition board Slot 28.Square groove 27 places CO2Hose 11 is accessed, depth is equal to 11 diameter of hose, and 28 the inside of U-shaped groove is equipped with heating wire 12,28 depth of U-shaped groove is equal to the diameter of heating wire 12, the distance 30-50mm between two neighboring U-shaped groove；CO2Hose 11 is worn It crosses circular hole 26 and is connected to CO in control room 22Steel cylinder 22, heating wire 12 are connected to controller 18 across circular hole 26.
As controlled structure connection diagram in Fig. 3 growth casees, external power supply 25 is accessed through air switch 15, Switching Power Supply 17 Controller 18, air switch 15 protect circuit to realize the break-make of circuit in fault；Status indicator lamp 14 prompts electricity The break-make on road, when powering on, status indicator lamp is bright, and growth case enters automatic control state；Switching Power Supply 17 changes circuit electricity Pressure, switchs to low-voltage by high voltage and is input to controller 18, controller 18 is according to indoor temperature and humidity sensor 7, outdoor temperature humidity Sensor 23 and CO211 collected information of sensor adjusts heating wire 12, supply fan 4, scavenger fan 9, CO2Solenoid valve 20 Working condition, change the environment in growth room 5, realize that environment automatically controls in growth case, audible-visual annunciator 19 refers to by LED Show lamp and buzzer composition, when encountering failure, sends out sound-light alarm and remind user.
Growing the course of work of case is：After powering on 17, status indicator lamp 14 is bright, and growth case 1, which enters, automatically controls shape State, while liquid crystal display 24 shows indoor and outdoor humiture and CO2Concentration, wherein LED light source 8 are individually controlled by timer switch 13 System, user is according to plant variety type and growth phase pre-set daily opening time and number；Case 1 is grown to enter automatically After control, sensor acquires the indoor and outdoor surroundings factor, and transfers data to controller 18 and is handled, controller 18 control into Air fan 4, scavenger fan 9, heating wire 12 and CO2The working condition of solenoid valve 20, when a failure occurs it, audible-visual annunciator 19 are sent out Go out acousto-optic warning reminding user.
It is complicated to grow indoor environment, there are non-linear, close coupling relationships between each environmental factor, are ensureing that crop is normal Under the precondition of growth, in order to reduce energy input, growth room environmental dynamic model as shown in Figure 4 is established, with sensor The temperature inside growth room that detects, humidity, CO2External input condition of the concentration as growth case, grows the temperature outside case Degree, humidity, CO2Distracter of the concentration as environment in case, final output item are supply fan 4, scavenger fan 9, heating wire 12 And CO2The working condition of solenoid valve 20.
Temperature dynamic model equation：
In formula：TairTo grow indoor temperature, QsunFor incident radiation heat, QcovFor coating thermal losses heat, Qtrans Heat, Q are absorbed for Crop transpirstionLEDIt gives off heat for light source, QfanHeat, Q is discharged for wind turbineheatFor electric-heating-wire-heating heat, QventHeat, C is discharged for ventilationcapFor growth room's volume；
Absolute humidity dynamic model equation：
In formula：χairTo grow indoor humidity, ΦtransFor Crop transpirstion water vapor flux, ΦcovIt is logical for covering condensing water vapor Amount, ΦequFor box equipment condensing water vapor flux, ΦventIt divulges information out water vapor flux for exhaust outlet, h is growth room's height；
Such as Fig. 5, there are apparent correlativities with humidity for growth indoor temperature, and when the temperature increases, humidity can obviously drop It is low.The Long-term change trend curve of scatter plot is obtained by Matlab, and by corresponding functional relation and characterizes its linear fit journey The related coefficient of degree is found out, and establishes the empirical equation between growth indoor temperature and humidity：
Tair=a χair 2+bχair+c (3)
Growth indoor temperature and humidity fit correlation substantially meets quadratic function, and related coefficient is more than 0.93；
CO2Dynamic model equation：
In formula：CO2,airTo grow interior CO2Concentration, Φc,injFor the pure industrial CO injected into growth case2Amount, Φc,assThe CO absorbed for crop2Amount, Φc,ventFor the CO exchanged with outside by ventilation hole2Amount；
When outdoor temperature meets plant growth requirement, ventilation supplement interior CO can be utilized2Concentration, required ventilation Rate：
In formula：CoFor outdoor CO2Concentration, typically about 0.6g/m3, CiIndoor CO2Concentration, fcPlant leaf area index, one As 2-5, P unit leaf areas are to average absorption intensity, general 0.5x10-3-0.8x10-3g/(m2s)；
When outside air temperature is relatively low, only relies on ventilation and improve CO2Not only efficiency is low for concentration, but also amount of heat is brought to damage It loses, therefore growth room's sealing management, it is passed through pure industrial CO2。
The data that 13 receiving sensor of controller transmits select corresponding regulating strategy to adjust growth room environmental, basic to control Strategy processed is：The boundary condition of growth room environmental is defined according to specific growth crop and growth phase, the present embodiment is with potting Plant cucumber at seedling stage to start tie melon period for.When being considered as daytime in LED light opening, case, crop is substantially carried out photosynthesis, When LED light closing, it is considered as night, Physiological Activities of Plants torpescence, so in the boundary condition preset value on " daytime " and " night " It is different.The boundary condition of growth chamber is set：Daytime maximum temperature Tmax=33 DEG C, minimum temperature Tmin=15 DEG C, most high humidity Spend Rmax=85%, minimum humidity Rmin=50%, highest CO2Concentration Cmax=1100PPM, minimum CO2Concentration Cmin=400PPM, Corresponding night boundary condition is tmax=22 DEG C, tmin=10 DEG C, rmax=80%, rmin=55%, cmax=1200PPM, cmin =500PPM.Temperature Humidity Sensor, CO2Sensor is that interval acquires indoor temperature, humidity, CO with time p=5 minute2Concentration, Outdoor temperature, humidity, and handled obtained data transmission is measured to controller 18.Controller 18 is more than wet according to temperature Degree is more than CO2The control priority orders of concentration, analyze the data transmitted, control heating wire 12, supply fan 4, row Air fan 9, CO2Solenoid valve 20 works, specific rate-determining steps：
S1. as temperature sensor measurement indoor temperature T >=Tmax(33 DEG C), at this time without the concern for humidity sensor and CO2 The humidity and CO that sensor 10 measures2Concentration data, controller 18 send out instruction unpack intake and exhaust fan 4, are carried out to growth room 5 Humidity and supplement CO in reduction growth case 1 are played in cooling, ventilation2Effect, work as temperatureWhen (16 DEG C), Controller 18 sends out instruction and stops fan work.
S2. as temperature sensor measurement indoor temperature T≤Tmin(15 DEG C), do not consider the data of humidity sensor measurement, examine Consider CO in growth room 52Concentration：1) work as CO2Concentration Cmin(400PPM) ＜ C ＜ CmaxWhen (1100PPM), controller 18 sends out instruction It controls heater strip 12 to work, the humidity in growth room 5 can be reduced while improving temperature in growth room 5, when warm in growth room 5 DegreeWhen (32 DEG C), controller 18 sends out instruction and stops heating wire works；2) work as CO2Concentration C≤Cmin (400PPM), if introducing outdoor air by ventilation improves CO2Not only efficiency is low for concentration, but also can bring thermal loss, therefore raw Long room 5 need to seal management, and controller 18 sends out instruction control heating wire 12 and works, and opens simultaneously CO2Solenoid valve 20 is passed through pure Industrial CO2, when temperature in growth room 5When (32 DEG C), controller 18 sends out instruction and stops heater strip work Make, as CO in growth room 52ConcentrationWhen (1000PPM), controller 18 sends out instruction and closes CO2Solenoid valve 20。
S3. as temperature sensor measurement indoor temperature Tmin＜ T ＜ Tmax, indoor humidity is considered first：1) indoor humidity Rmin (50%) ＜ R ＜ Rmax(85%), further consider interior CO2Concentration：
A. work as CO2Concentration Cmin(400PPM) ＜ C ＜ CmaxWhen (1100PPM), environment is not necessarily to be adjusted in growth room 5, Controller 18 does not send out any order, fan, heater strip 12, CO2Solenoid valve 20 does not work；
B. work as CO2Concentration C≤Cmin(400PPM) need to further consider outdoor temperature Tout：
A. when(24 DEG C), controller 18 sends out instruction unpack CO2Solenoid valve 20 is passed through pure industry CO2, as CO in growth room 52ConcentrationWhen (1000PPM), controller 18 sends out instruction and closes CO2Solenoid valve 20；
b.(24 DEG C), controller 18 sends out instruction unpack supply fan 4 and scavenger fan 9 is led to Wind ventilation supplement CO2, while the ventilation time is recorded, controller 18 sends out instruction stopping supply fan and exhaust after five minutes Fan work.
2) indoor humidity R >=Rmax(85%), further consider interior CO2Concentration：
A. work as CO2Concentration Cmin(400PPM) ＜ C ＜ CmaxWhen (1100PPM), outdoor temperature T is further consideredout：
A. when(24 DEG C), controller 18 sends out instruction unpack supply fan 4 and scavenger fan 9 carries out Ventilation dehumidifies, while recording the ventilation time, and controller sends out instruction and stops supply fan 4 and arrange after five minutes Air fan 9 works；
B. when(24 DEG C), controller 18 send out the instruction control work of heater strip 12 and dehumidify, when (45%) when, controller 18 sends out instruction and stops heating wire works；
B. work as CO2Concentration C ＜ Cmin(400PPM) further considers outdoor temperature Tout：
a.(24 DEG C), controller 18 sends out instruction unpack supply fan 4 and scavenger fan 9 is led to Wind ventilation is dehumidified and introduces outdoor CO2, while the ventilation time is recorded, controller 18 sends out instruction and stops after five minutes Only supply fan 4 and scavenger fan 9 work；
B. when(24 DEG C), controller 18 send out the instruction control work of heater strip 12 and are dehumidified simultaneously Open CO2Solenoid valve 20 is passed through pure industrial CO2, when(45%) when, controller 18 sends out instruction and stops Only heating wire works, as CO in growth room 52ConcentrationWhen (1000PPM), controller 18 sends out instruction and closes Close CO2Solenoid valve 20.
S4. corresponding night rate-determining steps are consistent with daytime, need to only change growth indoor temperature, humidity and CO2Concentration The preset value of boundary condition, i.e. tmax=22 DEG C, tmin=10 DEG C, rmax=80%, rmin=55%, cmax=1200PPM, cmin= 500PPM。
The embodiment is the preferred embodiments of the present invention, but present invention is not limited to the embodiments described above, not Away from the present invention substantive content in the case of, those skilled in the art can make it is any it is conspicuously improved, replace Or modification all belongs to the scope of protection of the present invention.

Claims (10)

1. a kind of household growth chamber (1), which is characterized in that include the control room (2) being divided by partition board (3) and growth room (5), growth room (5) are provided with LED light source (8), supply fan (4), scavenger fan (9), heating wire (12), CO2Access hose (11), indoor temperature and humidity sensor (7) and CO2Sensor (10), wherein LED light source (8), scavenger fan (9) are placed in growth room (5) top, supply fan (4) are located on growth room (5) lower sides, indoor temperature and humidity sensor (7) and CO2Sensor (10) On growth room (5) inner wall, CO2Access hose (11) is fixed on the square groove (27) on partition board (3) Nei, heating wire (12) it is fixed on the U-shaped groove (28) on partition board (3) Nei；Control room (2) be arranged having air switch (15), Switching Power Supply (17), Status indicator lamp (14), controller (18), timer switch (13), CO2Steel cylinder (22), pressure-regulating valve (21), CO2Solenoid valve (20) and audible-visual annunciator (19), CO2Steel cylinder (22) outlet installing pressure-regulating valve (21), controller (18) pass through air switch (15), Switching Power Supply (17) connection external power supply (25)；Grow installation outdoor temperature humidity sensor (23) on case (1) outer side surface With liquid crystal display (24).
2. household growth chamber according to claim 1, which is characterized in that growth case (1) the bottom installation is universal It takes turns (16).
3. household growth chamber according to claim 1, which is characterized in that the heating wire (12) is Aludirome Heating wire or nichrome heating wire.
4. household growth chamber according to claim 1, which is characterized in that the CO2It is 8-15mm to access hose (11) Diameter band tubing.
5. household growth chamber according to claim 1, which is characterized in that be provided with circular through hole on the partition board (3) (26), CO2Access hose (11) is connected to CO across circular through hole (26)2Steel cylinder (22), heating wire (12) pass through circular through hole (26) it is connected to controller (18).
6. household growth chamber according to claim 1, which is characterized in that the audible-visual annunciator (19) is referred to by LED Show lamp and buzzer composition.
7. household growth chamber according to claim 1, which is characterized in that U-shaped groove (28) depth is equal to electricity Heated filament (12) diameter, square groove (27) depth are equal to CO2Access hose (11) diameter.
8. household growth chamber according to claim 1, which is characterized in that growth chamber (1) the babinet iron sheet It is internally provided with the polyurethane material insulation of 10-15mm thickness, growth room (5) inner surface posts tinfoil paper.
9. a kind of multiobjective optimization control method of household growth chamber, which is characterized in that use following steps：
Step 1) presses Switching Power Supply, and status indicator lamp is bright, and growth case enters automatic control state；
Step 2) passes through Temperature Humidity Sensor, CO2Concentration sensor acquires humiture and CO current inside and outside growth room2Concentration, And transfer data to controller；
Step 3) after the information that controller receives, selects fan, heating wire and the CO in corresponding measure adjustment growth case2Electricity The working condition of magnet valve realizes automatically controlling for the environment to growing case.
10. multiobjective optimization control method according to claim 9, which is characterized in that corresponding measure is specially：Root The boundary condition that growth room environmental is defined according to specific growth crop and growth phase, is arranged the perimeter strip of growth chamber Part：Daytime maximum temperature Tmax, minimum temperature Tmin, highest humidity Rmax, minimum humidity Rmin, highest CO2Concentration Cmax, minimum CO2 Concentration Cmin, corresponding night boundary condition is tmax、tmin、rmax、rmin、cmax、cmin, Temperature Humidity Sensor, CO2Sensor with Time p is interval acquisition indoor temperature, humidity, CO2Concentration, outdoor temperature, humidity, and obtained data transmission will be measured to controlling Device processed is handled, and controller is more than humidity according to temperature and is more than CO2The control priority orders of concentration, to the data that transmit into Row analysis, control heating wire, supply fan, scavenger fan, CO2Electromagnetic valve work, specific rate-determining steps：
S1. as temperature sensor measurement indoor temperature T >=Tmax, controller sends out instruction unpack intake and exhaust fan, to growth room into Row cooling, works as temperatureWhen, controller sends out instruction and stops fan work；
S2. as temperature sensor measurement indoor temperature T≤Tmin, consider CO in growth room2Concentration：
1) work as CO2Concentration Cmin＜ C ＜ CmaxWhen, controller sends out instruction control heating wire works, works as indoor temperature When controller send out instruction stop heating wire works；
2) work as CO2Concentration C≤Cmin, controller, which is sent out, instructs control heating wire work, opens simultaneously CO2Solenoid valve is passed through pure Industrial CO2, work as indoor temperatureWhen, controller sends out instruction and stops heating wire works；As CO in growth room2 ConcentrationWhen, controller sends out instruction and closes CO2Solenoid valve；
S3. as temperature sensor measurement indoor temperature Tmin＜ T ＜ Tmax, indoor humidity is considered first：1) indoor humidity Rmin＜ R ＜ Rmaxx, further consider interior CO2Concentration, A. work as CO2Concentration Cmin＜ C ＜ CmaxWhen, controller does not send out any order；B. Work as CO2Concentration C≤Cmin, need to further consider outdoor temperature Tout, a. works asController sends out instruction unpack CO2Solenoid valve is passed through pure industrial CO2, as CO in growth room2ConcentrationWhen, controller sends out instruction and closes Close CO2Solenoid valve；b.Controller sends out instruction unpack supply fan and scavenger fan is aerated ventilation Supplement CO2, while the ventilation time is recorded, controller sends out instruction stopping supply fan and scavenger fan work after t minutes； 2) indoor humidity R >=Rmax, further consider interior CO2Concentration, A. work as CO2Concentration Cmin＜ C ＜ CmaxWhen, further consider outdoor Temperature Tout, a. works asController sends out instruction unpack supply fan and scavenger fan be aerated take a breath into Row dehumidifying, while the ventilation time is recorded, controller sends out instruction stopping supply fan and scavenger fan work after t minutes； B. whenController sends out instruction control heating wire works and dehumidifies, whenWhen, control Device sends out instruction and stops heating wire works；B. work as CO2Concentration C ＜ Cmin, further consider outdoor temperature Tout, a.Controller sends out instruction unpack supply fan and scavenger fan is aerated ventilation and is dehumidified and introduced Outdoor CO2, while the ventilation time is recorded, controller sends out instruction stopping supply fan and scavenger fan work after t minutes Make；B. whenController send out instruction control heating wire works carry out dehumidifying open simultaneously CO2Solenoid valve is logical Enter pure industrial CO2, whenWhen, controller sends out instruction and stops heating wire works, as CO in growth room2It is dense DegreeWhen, controller sends out instruction and closes CO2Solenoid valve；
S4. corresponding night rate-determining steps are consistent with daytime, need to only change growth indoor temperature, humidity and CO2Concentration boundary item The preset value of part.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110521427A (en) * 2019-09-09 2019-12-03 中国科学院东北地理与农业生态研究所 Controllable CO2Growth chamber and its application
CN111597464A (en) * 2020-04-13 2020-08-28 山东贵合信息科技有限公司 Data display optimization method and device based on Internet of things
WO2022117006A1 (en) * 2020-12-04 2022-06-09 海尔智家股份有限公司 Operating method for lighting system of indoor garden center
US20220192105A1 (en) * 2020-12-23 2022-06-23 Planted, LLC Hvac system for hydroponic farm
CN114980730A (en) * 2019-11-26 2022-08-30 豪蒂科有限公司 Closed-loop, pressurized and sterile, controlled microenvironment cultivation

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1561677A (en) * 2004-03-25 2005-01-12 江苏大学 Room temperature environment control technology using temperature priority
CN103416292A (en) * 2013-09-11 2013-12-04 王爱武 Domestic full-automatic vegetable planting machine
CN103503763A (en) * 2013-09-30 2014-01-15 陕西旭田光电农业科技有限公司 Plant growing box control system and control method thereof
CN103975839A (en) * 2014-05-30 2014-08-13 长沙信元电子科技有限公司 Small household vegetable patch
CN204949003U (en) * 2015-06-18 2016-01-13 爱盛生物科技（上海）有限公司 Three -dimensional plant soilless culture device
CN105843299A (en) * 2016-04-05 2016-08-10 浙江工业大学 Multivariable interval control method for greenhouse environment system
CN107045367A (en) * 2017-04-20 2017-08-15 同济大学 A kind of greenhouse multiple-factor coordinates energy-conserving and optimizing control method
CN206641099U (en) * 2017-04-18 2017-11-17 郑州轻工业学院 A kind of city apartment intelligence green plant implant system
WO2017207508A1 (en) * 2016-05-31 2017-12-07 Monteleone Fabio Completely automatic device for aeroponic cultivation
CN206835767U (en) * 2017-04-07 2018-01-05 漳浦县扬基园艺发展有限公司 A kind of Camellia nitidissima temperature-resistant seed selection nurturing an environment regulation device
US20190104698A1 (en) * 2016-04-20 2019-04-11 Kowa Company, Ltd. Compact cultivation device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1561677A (en) * 2004-03-25 2005-01-12 江苏大学 Room temperature environment control technology using temperature priority
CN103416292A (en) * 2013-09-11 2013-12-04 王爱武 Domestic full-automatic vegetable planting machine
CN103503763A (en) * 2013-09-30 2014-01-15 陕西旭田光电农业科技有限公司 Plant growing box control system and control method thereof
CN103975839A (en) * 2014-05-30 2014-08-13 长沙信元电子科技有限公司 Small household vegetable patch
CN204949003U (en) * 2015-06-18 2016-01-13 爱盛生物科技（上海）有限公司 Three -dimensional plant soilless culture device
CN105843299A (en) * 2016-04-05 2016-08-10 浙江工业大学 Multivariable interval control method for greenhouse environment system
US20190104698A1 (en) * 2016-04-20 2019-04-11 Kowa Company, Ltd. Compact cultivation device
WO2017207508A1 (en) * 2016-05-31 2017-12-07 Monteleone Fabio Completely automatic device for aeroponic cultivation
CN206835767U (en) * 2017-04-07 2018-01-05 漳浦县扬基园艺发展有限公司 A kind of Camellia nitidissima temperature-resistant seed selection nurturing an environment regulation device
CN206641099U (en) * 2017-04-18 2017-11-17 郑州轻工业学院 A kind of city apartment intelligence green plant implant system
CN107045367A (en) * 2017-04-20 2017-08-15 同济大学 A kind of greenhouse multiple-factor coordinates energy-conserving and optimizing control method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110521427A (en) * 2019-09-09 2019-12-03 中国科学院东北地理与农业生态研究所 Controllable CO2Growth chamber and its application
CN114980730A (en) * 2019-11-26 2022-08-30 豪蒂科有限公司 Closed-loop, pressurized and sterile, controlled microenvironment cultivation
CN111597464A (en) * 2020-04-13 2020-08-28 山东贵合信息科技有限公司 Data display optimization method and device based on Internet of things
CN111597464B (en) * 2020-04-13 2022-11-08 山东深蓝智谱数字科技有限公司 Data display optimization method and device based on Internet of things
WO2022117006A1 (en) * 2020-12-04 2022-06-09 海尔智家股份有限公司 Operating method for lighting system of indoor garden center
US20220192105A1 (en) * 2020-12-23 2022-06-23 Planted, LLC Hvac system for hydroponic farm

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