CN107087521A - A kind of sunlight ceiling intelligent ventilating system and its control method - Google Patents
A kind of sunlight ceiling intelligent ventilating system and its control method Download PDFInfo
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- CN107087521A CN107087521A CN201710327635.6A CN201710327635A CN107087521A CN 107087521 A CN107087521 A CN 107087521A CN 201710327635 A CN201710327635 A CN 201710327635A CN 107087521 A CN107087521 A CN 107087521A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010008 shearing Methods 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000009423 ventilation Methods 0.000 claims abstract description 26
- 230000033001 locomotion Effects 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000001556 precipitation Methods 0.000 claims abstract description 15
- 230000007423 decrease Effects 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims description 34
- 229920003023 plastic Polymers 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 230000002411 adverse Effects 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000013480 data collection Methods 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 3
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 230000007774 longterm Effects 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000001052 transient effect Effects 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 45
- 239000012528 membrane Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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- 230000011218 segmentation Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/241—Arrangement of opening or closing systems for windows and ventilation panels
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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
- 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
Abstract
The present invention relates to a kind of sunlight ceiling intelligent ventilating system and its control method, including scissor-type ventilation unit, vent seal device and intelligence control system；Scissor-type ventilation unit includes fixed support, fork-shearing frame, ventilating opening push-rod electric machine, spacing slide rail, spacing pulley, microswitch and film fixing groove；Vent seal device includes drive link push-rod electric machine, power transmission shaft, Limit Bearing, seal bar, drive link and scissor-type driver；Intelligence control system includes temperature sensor, Raindrop sensor, touch-screen, PLC and power adapter.The present invention can be required the difference of temperature based on Different Crop different growing, no longer judge whether to divulge information with simple temperature threshold, but based on the environmental data collected by PLC according to temperature, Raindrop sensor, consider whether effective accumulated temperature in Crop growing stage reaches pre-determined lower limit, precipitation whether, after the factor such as transient temperature increase and decrease amplitude, ventilating opening push-rod electric machine and the motion of drive link push-rod electric machine are controlled, so as to control the opening and closing and sealing of ventilating opening.
Description
Technical field
The present invention relates to a kind of sunlight ceiling intelligent ventilating system and its control method and its control method, belong to facility
Agricultural production and machine automatization control field, it is adaptable to which heliogreenhouse top portion ventilation is managed.
Background technology
China's facility cultivation area is sure to occupy first place in the world, but compared with developed countries, China's establishment type is simple, facility
Equipment falls behind, it is impossible to meet the demand of facilities environment regulation and control.
The top portion ventilation mouthful of heliogreenhouse is limited by heliogreenhouse as the core apparatus of control heliogreenhouse temperature and humidity condition
Structure is limited, and is not improved and developed at all always.Existing complete heliogreenhouse film is generally divided into three bulks, top
One piece is top ventilating opening film, and middle one piece is daylighting and bottom ventilating opening film, and one piece of bottom is fixed film, is referred to as " skirt
Side ".The top ventilating opening opening and closing mode of existing heliogreenhouse mainly has following two modes, and one kind is wound membrane mode, another to be
Membrane mode.The plastic sheeting being fixed on pipe is rolled or spread out by the rotation of a galvanized pipe by wound membrane mode, is realized logical
The opening and closing in air port, its operating process is carried out outside heliogreenhouse, and the rotation of galvanized pipe is manually or motor is realized；Membrane mode
Plastic sheeting is drawn over to one's side or flattened by array pulley gear, the opening and closing of ventilating opening is realized, its operating process is in heliogreenhouse
Portion is carried out, and the artificial operation successively for carrying out single group pulley gear, or motor carry out the same of array pulley gear by transmission mechanism
Step operation.
The problem of all there is ponding in ventilating opening canopy film in above two ventilation unit.Northern area summer rainfall it is big and compared with
Frequently, and at present the sunlight ceiling vent position gradient is smaller, impeded drainage, in addition the film at ventilating opening lack non-return,
Plastic sheeting ductility increases under locking device, high temperature, in the case of product rain, because Action of Gravity Field bounces back, just logical
Many water bags are formed between tuyere position and two truss, the normal volume of influence ventilating opening is put.Serious causes ventilating opening film to break
Split, ponding pours into interior.The coating steel pipe of wound membrane mode aggravates draining difficulty, and membrane mode stress point is excessively concentrated, do not had
The position of pulley gear traction excessively relaxes, and these all aggravate seeping phenomenon.Conventional settling mode is increase rod or steel
Net, but structure is lengthy and jumbled and produces effects general.
Heliogreenhouse is east-west, using solar radiation as direct heat source, but in one day position of sun change, necessarily draw
The uneven distribution of heat in heliogreenhouse is played, traditional draft type ignores this species diversity, and whether divulges information, when divulges information
Manually experience, or simple design temperature threshold value judge that these modes of operation obviously ignore Different Crop in different lifes
Different demands of the phase to temperature are educated, therefore take the mode of segmentation, intelligent management imperative temperature in heliogreenhouse.
The content of the invention
In order to solve the above problems, the invention provides a kind of sunlight ceiling intelligent ventilating system and its control method.
The present invention can realize sectionalized ventilation, in place lock sealing, automatically control, the purpose of simplifying of structure.
A kind of sunlight ceiling intelligent ventilating system, including scissor-type ventilation unit, vent seal device and intelligence control
System processed.
Described scissor-type ventilation unit includes fixed support, fork-shearing frame, ventilating opening push-rod electric machine, spacing slide rail, spacing
Pulley, microswitch and film fixing groove.Described fixed support is used for be connected fork-shearing frame and push-rod electric machine, is scissor-type
The mounting platform of ventilation unit；Described ventilating opening push-rod electric machine is two, and every ventilating opening push-rod electric machine controls one respectively
Fork-shearing frame it is flexible, the base of every push-rod electric machine is fixed on fixed support, and fixed support is fixed on roofing after heliogreenhouse
On；Two scissors rods of each fork-shearing frame head end are separately fixed on fixed support, and a scissors rod can only be using tie point as circle
The heart is made circular-rotation and can not moved up and down, and another scissors rod can only move linearly along above and below fixed support and can not do circle
Week rotates, and the scissors rod that can be moved linearly with the push rod of ventilating opening push-rod electric machine while be connected, in the band of ventilating opening push-rod electric machine
Under dynamic, the flexible of fork-shearing frame is realized；Described film fixing groove is fixed on the scissors rod of fork-shearing frame end, for fixed ventilation
Mouth plastic sheeting；Described spacing slide rail is two, and spacing slide rail is fixed on heliogreenhouse internal truss frame, the south of spacing slide rail
The north orientation gradient is identical with the gradient of fork-shearing frame, both keeping parallelisms；Spacing pulley is movable to be arranged in spacing slide rail, spacing cunning
Wheel is connected with film fixing groove；The microswitch is arranged in spacing slide rail, is connected with PLC by signal wire, plays limit
The effect of position.
Plastic sheeting the North at the top portion ventilation mouthful of heliogreenhouse is fixed on heliogreenhouse adverse grade outer surface, it is impossible to moved
Dynamic, its south is fixed in described film fixing groove, is moved with the movement of film fixing groove.When ventilating opening push-rod electric machine
When push rod is protruded upward, fork-shearing frame elongation is promoted, the film fixing groove for being fixed on fork-shearing frame end is moved southwards along spacing slide rail,
The plastic sheeting being fixed in film fixing groove is driven also to move southwards, one piece plastics film is by the southern integrally closed of north orientation；When logical
When the push rod of air port push-rod electric machine is fully extended, plastic sheeting is flattened completely, and ventilating opening is closed；When the push rod of push-rod electric machine shrinks
When, pull fork-shearing frame to shrink, the film fixing groove for being fixed on fork-shearing frame end is northwards moved, drive is fixed in film fixing groove
Plastic sheeting also northwards move, one piece plastics film is integrally opened from south to north, and as plastic sheeting is drawn in, ventilating opening is opened
Open.Spacing pulley in spacing slide rail is connected with film fixing groove, is risen during being moved back and forth in film fixing groove north and south
To booster action, make the motion stabilization of film fixing groove smooth.
Described vent seal device includes drive link push-rod electric machine, power transmission shaft, Limit Bearing, seal bar, drive link
With scissor-type driver.
Described seal bar and drive link is linked together by power transmission shaft, seal bar and drive link be all divided into north-south and
Two kinds of East and West direction；Power transmission shaft is arranged in Limit Bearing；The seal bar is located above described top ventilating opening film, drive link
Below described daylighting and bottom ventilating opening film, the push rod of drive link push-rod electric machine is connected with East and West direction drive link；Limit
Position bearing and drive link push-rod electric machine fixed seat are fixed on the truss in heliogreenhouse；East and West direction drive link two ends pass through described
Scissor-type driver be connected with north-south drive link, scissor-type driver by East and West direction mechanical force be converted into north-south machinery
Power；Described scissor-type driver is made up of two scissors rods, and a scissors rod can only make circular-rotation by the center of circle of tie point,
Another scissors rod can only move linearly along East and West direction drive link direction and can not do circular-rotation, the scissor that can be moved linearly
Bar is connected with north-south drive link simultaneously, under the drive of East and West direction drive link, realizes electronic-controlled power steering；Described power transmission shaft is in straight
Angle S types, due to the limitation of Limit Bearing, power transmission shaft can only be rotated in Limit Bearing, it is impossible to displacement, real by push-rod electric machine push-and-pull
Rubber strip is all posted in the opening and closing of existing seal bar and drive link, seal bar lower surface and drive link upper surface, for strengthening sealing effect
Really.
The push rod elongation control East and West direction drive link motion of actuator push rod motor, and north and south is controlled by scissor-type driver
Moved to drive link, drive link does the movement in a curve using Limit Bearing as the center of circle, and controls East and West direction seal bar by power transmission shaft
Also the movement in a curve using Limit Bearing as the center of circle is done；Limit Bearing coordinates with power transmission shaft, presses close to seal bar and drive link, presses close to
When, the rubber strip on seal bar bottom and drive link top is mutually extruded, and occurs elastic deformation, and the top at the top of heliogreenhouse is divulged information
Mouth film and middle daylighting and bottom ventilating opening film step up, and realize to ventilating opening thorough seal.When needing ventilation, drive link is pushed away
The push rod of bar motor shrinks, and separates seal bar and drive link, releases the sealing to ventilating opening plastic sheeting, produces sufficient space
Open ventilating opening.
Described intelligence control system includes temperature sensor, Raindrop sensor, touch-screen, PLC (Programmable logical controllers
Device) and power adapter.Described touch-screen, PLC and power adapter is placed in control cabinet, and PLC is passed with touch-screen, temperature respectively
Sensor, Raindrop sensor, microswitch, ventilating opening push-rod electric machine and the connection of drive link push-rod electric machine.Described temperature sensor
Heliogreenhouse is arranged on the truss of vent position with Raindrop sensor.
In the present invention, thought of the temperature automatic control based on accumulated temperature, it is contemplated that Different Crop different growing is to temperature
Different requirements, no longer judge whether divulge information with simple temperature threshold, but with described PLC according to temperature, raindrop sensing
Based on the environmental data that device is collected, consider effective accumulated temperature in Crop growing stage and whether reach pre-determined lower limit, precipitation with
After the factors such as no, transient temperature increase and decrease amplitude, control ventilating opening push-rod electric machine and the motion of drive link push-rod electric machine, so as to control to lead to
The opening and closing and sealing in air port.
The invention further relates to a kind of sunlight ceiling intelligent aeration control method, step is as follows：
1st, ventilating opening push-rod electric machine is set to main motor, drive link push-rod electric machine is set to stand-by motor.
Main motor control ventilating opening opening and closing, rotates forward and closes, reversion is opened；Stand-by motor controls vent seal, positive twist lock
Tightening seal, reversion unblock, main motor uncontrollable ventilating opening opening and closing when stand-by motor rotates forward locking.The microswitch rises spacing
Effect.
2nd, independent variable (1) crop accumulated temperature A is defined；(2) ceiling temperature k in heliogreenhouse；(3) lower limit temperature in heliogreenhouse
w；(4) temperature a1 is acutely raised in heliogreenhouse；(5) rise temperature a2 is relaxed in heliogreenhouse；(6) under violent in heliogreenhouse
Cooling degree a3；(7) decline temperature a4 is relaxed in heliogreenhouse；(8) correction coefficient L；(9) it is main and auxiliary to help motor to work on power the time；
(10) daily dehumidifying moment and duration m (second)；(11) beginning and ending time of program.User can be described from touch-screen input
Independent variable occurrence, is intelligently controlled with reaching according to actual conditions (long-term cropping species, heliogreenhouse performance, crop growth period etc.)
The purpose of sunlight ceiling ventilating opening processed.
3rd, sunlight indoor crops actually active accumulated temperature T of the dependent variable (1) using day as time step is defined；(2) with minute
For the actually active accumulated temperature T ' of sunlight indoor crops of time step；(3) the total days running D of program；(4) program days running
d；(5) mark particular point in time t；(6) temperature threshold c；(7) accumulated temperature offset b.
The T values calculating process is as follows：
At interval of 1 minute collecting temperature data.Add up all temperature values after terminating within 1 day, temperature averages v is sought, by formula
(1) T is calculated：
T ' the values calculating process is as follows：
At interval of 1 minute collecting temperature data.T is calculated to real-time mean temperature v ', T ' is calculated by formula (2)：
4th, criterion
Described Raindrop sensor real-time data collection, PLC judges whether precipitation, if precipitation, to prevent greenhouse from intaking, no
Temperature conditions in greenhouse is considered further that, the positive closing ventilating opening in the case where ventilating opening is opened.If without precipitation, judging in order
With it is next, 2 two：
First：Using current point in time as starting point, whether former temperature drop in 30 minutes is standard more than a4 values：If not surpassing
A4 is crossed, Article 2 is jumped to and proceeds judgement；If more than a4, continuing to determine whether more than a3, if more than a3, ventilating opening is closed completely
Close, if not above a3, ventilating opening closes half.
Article 2：Using current point in time as starting point, whether former 30 minutes temperature are increased beyond a2 values for standard：If no
More than a2, ventilating opening is completely closed；If more than a2, using whether more than a1 values as standard：If more than a1 values, marking current time
Point, is denoted as t；Perform following 1st article；If not above a1 values, marking current point in time, being also denoted as t；Perform following 2nd article：
1st article：C=(∑ T)/d-A/D, if c<0, b=-c is obtained, if c >=0, b=0 is obtained, reads since t points to real-time
Temperature data, by formula (2) calculate T ', this value be more than L* (A/D+b) after, ventilating opening is opened completely.
2nd article：C=(∑ T)/d-A/D, if c<0, b=-c is obtained, if c >=0, b=0 is obtained, reads since t points to real-time
Temperature data, by formula (2) calculate T ', this value be more than L* (A/D+b) after, ventilating opening open half.
During the dehumidifying moment inputted to user, in the case of precipitation, pause performs the finger judged by temperature conditionss
Order, if ventilating opening has been switched on, keeps this state m seconds, if ventilating opening is closed, and opens ventilating opening and is kept for m seconds, is continued afterwards
Perform the instruction judged by temperature conditionss.
The interface of the touch-screen includes：First bed boundary includes user name, and password resets cryptographic options；Second stratum boundary
Face includes manual controlled motor, and parameter input, motor status are shown, newest temperature value option；Third layer interface includes detailed temperature
Degrees of data, every mean daily temperature, daily T values, accumulative T values, daily temperature extremal (maximum and minimum value) and time of occurrence
Option.
The present invention can reach sectionalized ventilation, in place lock sealing, the requirement of structure is automatically controlled, simplifies, with following excellent
Point：
1st, all mechanical driving devices are inside heliogreenhouse in the present invention, and maintenance is easy, not with outside heliogreenhouse
Operation conflict occurs for the devices such as insulation quilt, sunshade net；Collection degree is high, installs fixed simple.
2nd, realize that ventilating opening is opened and closed as transmission mechanism using fork-shearing frame in the present invention, it has simple in construction, bearing capacity
Greatly, the advantages of stroke is short, stability is strong, delivery efficiency is high, is engaged with push-rod electric machine, realizes real-time lock.
3rd, plastic sheeting is fixed in fixing groove in the present invention, fixing compact is firm, and (traditional wound membrane is led to without projection
The galvanized pipe of wind mode is higher by plastic sheeting plane 3cm or so), eliminate obstacle to drainage.Open, close as linear (tradition drawing
Film draft type is spot style), open area is big, it is ensured that air flux.
4th, it is designed with sealing device in the present invention, it is ensured that the sealing of plastic sheeting lap-joint.
5th, using PLC programmings (can be according to prior art program) in the present invention, many condition control is realized to heliogreenhouse
The intelligent control of interior temperature, multigroup top ventilation port management system of sunlight indoor location, you can realize sunlight indoor temperature
Multisection type is managed.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is scissor-type ventilation unit detail drawing.
Fig. 3 is vent seal device detail drawing.
Fig. 4 is electrical schematic diagram of the present invention.
In figure：1st, scissor-type ventilation unit, 2, vent seal device, 3, temperature, Raindrop sensor, 4, control cabinet.
1-1, fixed support, 1-2, ventilating opening push-rod electric machine, 1-3, fork-shearing frame, 1-4, spacing slide rail, 1-5, spacing pulley,
1-6, microswitch, 1-7, film fixing groove 2-1, drive link push-rod electric machine, 2-2, power transmission shaft, 2-3, Limit Bearing are 2-4, close
Seal bar, 2-5, drive link, 2-6, scissor-type driver.
Embodiment
The invention discloses a kind of sunlight ceiling intelligent ventilating system.
A kind of sunlight ceiling intelligent ventilating system, including scissor-type ventilation unit, vent seal device and intelligence control
System processed.
Described scissor-type ventilation unit includes fixed support 1-1, ventilating opening push-rod electric machine 1-2, fork-shearing frame 1-3, spacing
Slide rail 1-4, spacing pulley 1-5, microswitch 1-6 and film fixing groove 1-7.Described fixed support 1-1 is used to be connected
Fork-shearing frame 1-3 and ventilating opening push-rod electric machine 1-2, is the mounting platform of scissor-type ventilation unit；Described ventilating opening push-rod electric machine
1-2 is two；Every ventilating opening push-rod electric machine 1-2 controls fork-shearing frame 1-3's flexible respectively；Every ventilating opening push-rod electric machine
1-2 base is fixed on fixed support 1-1, and fixed support 1-1 is fixed on after heliogreenhouse on roofing；Fixed support 1-1 two
Side is arranged with fork-shearing frame 1-3；Two scissors rods of each fork-shearing frame 1-3 head ends are separately fixed on fixed support 1-1, one
Scissors rod can only be using tie point as circular-rotation is made in the center of circle and can not move up and down；Another scissors rod can only be along above and below support frame
Move linearly and circular-rotation can not be done；The scissors rod that can be moved linearly connects with ventilating opening push-rod electric machine 1-2 push rod simultaneously
Connect, under ventilating opening push-rod electric machine 1-2 drive, realize that fork-shearing frame 1-3's is flexible；Described film fixing groove 1-7 is fixed on
On the scissors rod of fork-shearing frame 1-3 ends, for fixing ventilating opening plastic sheeting.Described spacing slide rail 1-4 is two, is fixed on
On heliogreenhouse internal truss frame, the spacing slide rail 1-4 north-south gradient is identical with the fork-shearing frame 1-3 gradient and both keep flat
OK；Spacing pulley 1-5 is movable to be arranged in spacing slide rail 1-4, and spacing pulley 1-5 is connected with film fixing groove 1-7；It is described
Microswitch 1-6 is arranged in spacing slide rail 1-4, is connected with PLC by signal wire, served spacing.
Plastic sheeting the North at the top portion ventilation mouthful of heliogreenhouse is fixed on heliogreenhouse adverse grade outer surface, it is impossible to moved
Dynamic, its south is fixed on described film fixing groove 1-7, is moved with film fixing groove 1-7 movement.When ventilating opening push rod
When motor 1-2 push rod is protruded upward, fork-shearing frame 1-3 elongations are promoted, the film fixing groove 1-7 of fork-shearing frame 1-3 ends is fixed on
Moved southwards along spacing slide rail 1-4, drive the plastic sheeting being fixed in film fixing groove 1-7 also to move southwards, one piece plastics
Film is by the southern integrally closed of north orientation；When ventilating opening push-rod electric machine 1-2 push rod is fully extended, plastic sheeting is flattened completely, is led to
Air port is closed；When ventilating opening push-rod electric machine 1-2 push rod shrinks, pull fork-shearing frame 1-3 to shrink, be fixed on fork-shearing frame 1-3 ends
The film fixing groove 1-7 at end is northwards moved, and drives the plastic sheeting being fixed in film fixing groove 1-7 also northwards to move, monoblock
Plastic sheeting is integrally opened from south to north, as plastic sheeting is drawn in, and ventilating opening is opened.Spacing pulley in spacing slide rail 1-4
1-5 is connected with film fixing groove 1-7, plays booster action during being moved back and forth in film fixing groove 1-7 north and south, makes thin
Film fixing groove 1-7 motion stabilization is smooth.
Described vent seal device includes drive link push-rod electric machine 2-1, power transmission shaft 2-2, Limit Bearing 2-3, sealing
Bar 2-4, drive link 2-5 and scissor-type driver 2-6 compositions.
Described seal bar 2-4 and drive link 2-5 is linked together by power transmission shaft 2-2, seal bar 2-4 and drive link 2-
5 are all divided into two kinds of north-south and East and West direction；Power transmission shaft 2-2 is arranged in Limit Bearing 2-3；The seal bar 2-4 is located at described
Top ventilating opening film above, drive link 2-5 is located at below described daylighting and bottom ventilating opening film, drive link push-rod electric machine 2-
1 push rod is connected with transmeridional drive link 2-5；Limit Bearing 2-3 and drive link push-rod electric machine 2-1 fixed seat are fixed on
On truss in heliogreenhouse；Transmeridional drive link 2-5 two ends pass through described scissor-type driver 2-6 and the biography in north-south
East and West direction mechanical force is converted into north-south mechanical force, realizes electronic-controlled power steering by lever 2-5 connections, scissor-type driver 2-6.It is described
Scissor-type driver 2-6 be made up of two scissors rods, a scissors rod can only make circular-rotation by the center of circle of tie point, another
Root scissors rod can only move linearly along East and West direction drive link 2-5 directions and can not do circular-rotation, the scissor that can be moved linearly
Bar is connected with north-south drive link 2-5 simultaneously, under East and West direction drive link 2-5 drive, realizes electronic-controlled power steering.Described transmission
The rectangular S types of axle 2-2, due to Limit Bearing 2-3 limitation, power transmission shaft 2-2 can only be rotated in Limit Bearing 2-3, it is impossible to position
Move, seal bar 2-4 and drive link 2-5 opening and closing, seal bar 2-4 lower surfaces and biography are realized by drive link push-rod electric machine 2-1 push-and-pulls
Lever 2-5 posts rubber strip in upper surface, for strengthening sealing effectiveness.
The drive link push-rod electric machine 2-1 transmeridional drive link 2-5 motions of push rod elongation control, and be driven by scissor-type
The drive link 2-5 motions in device 2-6 controls north-south, drive link 2-5 does the movement in a curve using Limit Bearing 2-3 as the center of circle, and leads to
Crossing power transmission shaft 2-2 controls transmeridional seal bar 2-4 also to do the movement in a curve using Limit Bearing 2-3 as the center of circle；Limit Bearing 2-3
Coordinate with power transmission shaft 2-2, press close to seal bar 2-4 and drive link 2-5, when pressing close to, on seal bar 2-4 bottoms and drive link 2-5
The rubber strip in portion is mutually extruded, and occurs elastic deformation, by the top ventilating opening film at the top of heliogreenhouse and middle daylighting and bottom
Ventilating opening film steps up, and realizes to ventilating opening thorough seal.When needing ventilation, drive link push-rod electric machine 2-1 push rod shrinks, and makes
Seal bar 2-4 and drive link 2-5 is separated, and releases the sealing to ventilating opening plastic sheeting, and producing sufficient space opens ventilating opening.
Described intelligence control system include temperature, Raindrop sensor 3, touch-screen, PLC (programmable logic controller (PLC)) and
Power adapter.Described touch-screen, PLC and power adapter is placed in control cabinet 4, PLC respectively with temperature, Raindrop sensor 3,
Touch-screen, microswitch 1-6, ventilating opening push-rod electric machine 1-2 and the 2-1 connections of drive link push-rod electric machine.Described temperature, raindrop are passed
Sensor 4 is arranged on heliogreenhouse on the truss of vent position.
In the present invention, thought of the temperature automatic control based on accumulated temperature, it is contemplated that Different Crop different growing is to temperature
Different requirements, no longer judge whether divulge information with simple temperature threshold, but with described PLC according to temperature, raindrop sensing
Based on the environmental data that device 4 is collected, consider effective accumulated temperature in Crop growing stage and whether reach pre-determined lower limit, precipitation with
After the factors such as no, transient temperature increase and decrease amplitude, control ventilating opening push-rod electric machine 1-2 and drive link push-rod electric machine 2-1 motions, so that
Control the opening and closing and sealing of ventilating opening.
In use, PLC (model sea is HW-H08DI) is read by temperature, the environmental data of Raindrop sensor 3, by setting journey
Sequence judges that ventilating opening is opened and closed.Control ventilating opening push-rod electric machine 1-2's and drive link push-rod electric machine 2-1 positive and negative according to judged result
Turn.
Ventilating opening push-rod electric machine 1-2 (24V, 350mm stroke) controls fork-shearing frame 1-3 to move back and forth by push-and-pull, realization pair
Film fixing groove 1-7 control.Realize unlatching to ventilating opening, closing motion.
Drive link push-rod electric machine 2-1 (24V, 50mm stroke) controls drive link 2-5 to move back and forth by push-and-pull, and by passing
Moving axis 2-2 control seal bars 2-4 is moved back and forth, and Limit Bearing 2-3 and power transmission shaft 2-2 coordinate, and make seal bar 2-4 and drive link 2-
5 vibration-directions are on the contrary, realize the sealing to ventilating opening, breakdown action.
Specific control process is described as follows.
First, ventilating opening push-rod electric machine 1-2 is set to main motor, drive link push-rod electric machine 2-1 is set to stand-by motor.
Main motor control ventilating opening opening and closing, rotates forward and closes, reversion is opened；Stand-by motor controls vent seal, positive twist lock
Tightening seal, reversion unblock, main motor uncontrollable ventilating opening opening and closing when stand-by motor rotates forward locking.The microswitch 1-6 rises
Position-limiting action, i.e., during main motor works on power, touch when the film fixing groove 1-7 is run to up to after defined position
Microswitch 1-6, microswitch 1-6 can close forceful electric power, and the plastic sheeting at preventing and treating ventilating opening is damaged.
2nd, independent variable (1) crop accumulated temperature A is defined；(2) ceiling temperature k in heliogreenhouse；(3) lower limit temperature in heliogreenhouse
Spend w；(4) temperature a1 is acutely raised in heliogreenhouse；(5) rise temperature a2 is relaxed in heliogreenhouse；(6) in heliogreenhouse acutely
Decline temperature a3；(7) decline temperature a4 is relaxed in heliogreenhouse；(8) correction coefficient L；(9) it is main and auxiliary when helping the motor to work on power
Between；(10) daily dehumidifying moment and duration m (second)；(11) beginning and ending time of program.User can input from the touch-screen
The independent variable occurrence, to reach according to actual conditions (long-term cropping species, heliogreenhouse performance, crop growth period etc.) intelligence
The purpose of sunlight ceiling ventilating opening can be controlled.
3rd, sunlight indoor crops actually active accumulated temperature T of the dependent variable (1) using day as time step is defined；(2) with minute
For the actually active accumulated temperature T ' of sunlight indoor crops of time step；(3) the total days running D of program；(4) program days running
d；(5) mark particular point in time t；(6) temperature threshold c；(7) accumulated temperature offset b.
The value calculating process of the actually active accumulated temperature T of sunlight indoor crops by time step of day is as follows：
At interval of 1 minute collecting temperature data.Add up all temperature values after terminating within 1 day, temperature averages v is sought, by formula
(1) T is calculated：
The value calculating process of the actually active accumulated temperature T ' of sunlight indoor crops by time step of minute is as follows：
At interval of 1 minute collecting temperature data.T is calculated to real-time mean temperature v ', T ' is calculated by formula (2)：
4th, judgment step
Described Raindrop sensor real-time data collection, PLC judges whether precipitation, if precipitation, to prevent greenhouse from intaking, no
Temperature conditions in greenhouse is considered further that, positive closing ventilating opening, the PLC reads the positive-negative rotation state that main motor is presently in, if
Reversion stops state at motor, and main motor is rotated forward, and reaches and stops after preset operating time, then stand-by motor is rotated forward, and is reached default
Stop after working time.If without precipitation, judge in order with it is next, 2 two：
First：Whether temperature drop in 30 minutes in the past is standard more than a4 values：If not above a4, jumping to Article 2 continuation
Judged；If more than a4, continuing to determine whether more than a3, if more than a3, it is positive and negative that the PLC readings main motor is presently in
Turn state, if in reversion halted state, main motor is rotated forward, and is reached and is stopped after preset operating time, if not above a3, the PLC
The positive-negative rotation state that main motor is presently in is read, if in reversion halted state, main motor is rotated forward, and reaches 0.5 times of default work
Stop after time.
Article 2：Using current point in time as starting point, if whether preceding 30 minutes temperature are increased beyond a2 values, if being not above
A2, the PLC reads the positive-negative rotation state that stand-by motor is presently in, and state is stopped if being rotated forward at stand-by motor, and stand-by motor is anti-
Turn, reach and stop after preset operating time, if reversion stops state at stand-by motor, the PLC reads what main motor was presently in
Positive-negative rotation state, if place's reversion stops state, main motor is rotated forward, and is reached and is stopped after preset operating time；If more than a2, continuing to judge
Whether more than a1 values, if more than a1 values, marking current point in time, being denoted as t；Stop current judgement, perform following 1st article of program；
If not above a1 values, marking current point in time, being also denoted as t；Stop current judgement, perform following 1st article of program：
1st article：C=(∑ T)/d-A/D, if c<0, b=-c is obtained, if c >=0, b=0 is obtained, reads since t points to real-time
Temperature data, calculate T ' by formula (2), this value is more than after L* (A/D+b), the PLC reads what stand-by motor was presently in
Positive-negative rotation state, state is stopped if being rotated forward at stand-by motor, and stand-by motor reversion reaches and stopped after preset operating time, if auxiliary
Reversion stops state at motor, and the PLC reads the positive-negative rotation state that main motor is presently in, if place, which is rotated forward, stops state, main motor
Reversion, reaches and stops after preset operating time.
2nd article：C=(∑ T)/d-A/D, if c<0, b=-c is obtained, if c >=0, b=0 is obtained, reads since t points to real-time
Temperature data, calculate T ' by formula (2), this value is more than after L* (A/D+b), the PLC reads what stand-by motor was presently in
Positive-negative rotation state, state is stopped if being rotated forward at stand-by motor, and stand-by motor reversion reaches and stopped after preset operating time, if auxiliary
Reversion stops state at motor, and the PLC reads the positive-negative rotation state that main motor is presently in, if place, which is rotated forward, stops state, main motor
Reversion, reaches and stops after 0.5 times of preset operating time.
To user input the dehumidifying moment when, in the case where judging no precipitation, pause execution is judged by temperature conditionss
The instruction gone out, the PLC reads the positive-negative rotation state that main motor is presently in, if place's reversion stops state, keeps this state m seconds,
If place, which is rotated forward, stops state, stand-by motor reversion is reached after preset operating time, and main motor reversion reaches to stop after preset operating time
Only, kept for m seconds, the instruction judged by temperature conditionss is performed afterwards.
The interface of the touch-screen includes：First bed boundary includes user name, and password resets cryptographic options；Second stratum boundary
Face includes manual controlled motor, and parameter input, motor status are shown, newest temperature value option；Third layer interface includes detailed temperature
Degrees of data, every mean daily temperature, daily T values, accumulative T values, daily temperature extremal (maximum and minimum value) and time of occurrence
Option.
Claims (3)
1. a kind of sunlight ceiling intelligent ventilating system, it is characterised in that including scissor-type ventilation unit, vent seal device
And intelligence control system；
Described scissor-type ventilation unit include fixed support, fork-shearing frame, ventilating opening push-rod electric machine, spacing slide rail, spacing pulley,
Microswitch and film fixing groove；Described fixed support is used for be connected fork-shearing frame and push-rod electric machine；Described ventilating opening
Push-rod electric machine is two, and every ventilating opening push-rod electric machine controls flexible, the base of every push-rod electric machine of a fork-shearing frame respectively
It is fixed on fixed support, fixed support is fixed on after heliogreenhouse on roofing；Two scissors rods point of each fork-shearing frame head end
It is not fixed on fixed support, a scissors rod can only be another using tie point as circular-rotation is made in the center of circle and can not move up and down
Root scissors rod can only move linearly along above and below fixed support and can not do circular-rotation, the scissors rod that can be moved linearly simultaneously with
The push rod connection of ventilating opening push-rod electric machine, under the drive of ventilating opening push-rod electric machine, realizes the flexible of fork-shearing frame；Described film
Fixing groove is fixed on the scissors rod of fork-shearing frame end, for fixing ventilating opening plastic sheeting；Described spacing slide rail is two,
Spacing slide rail is fixed on heliogreenhouse internal truss frame, and the north-south gradient of spacing slide rail is identical with the gradient of fork-shearing frame, both
Keeping parallelism；Spacing pulley is movable to be arranged in spacing slide rail, and spacing pulley is connected with film fixing groove；The fine motion is opened
Close and be arranged in spacing slide rail, be connected with PLC by signal wire, served spacing；
Plastic sheeting the North at the top portion ventilation mouthful of heliogreenhouse is fixed on heliogreenhouse adverse grade outer surface, plastic sheeting south
End is fixed in described film fixing groove, is moved with the movement of film fixing groove；When ventilating opening push-rod electric machine push rod to
During upper stretching, fork-shearing frame elongation is promoted, the film fixing groove for being fixed on fork-shearing frame end is moved southwards along spacing slide rail, driven solid
The plastic sheeting being scheduled in film fixing groove is also moved southwards, and one piece plastics film is by the southern integrally closed of north orientation；When ventilating opening is pushed away
When the push rod of bar motor is fully extended, plastic sheeting is flattened completely, and ventilating opening is closed；When the push rod of push-rod electric machine shrinks, draw
Dynamic fork-shearing frame is shunk, and the film fixing groove for being fixed on fork-shearing frame end is northwards moved, and drives the modeling being fixed in film fixing groove
Material film is also northwards moved, and one piece plastics film is integrally opened from south to north, as plastic sheeting is drawn in, and ventilating opening is opened；Limit
Spacing pulley in the slide rail of position is connected with film fixing groove, and auxiliary is played during being moved back and forth in film fixing groove north and south
Effect, makes the motion stabilization of film fixing groove smooth；
Described vent seal device includes drive link push-rod electric machine, power transmission shaft, Limit Bearing, seal bar, drive link and cut
V shape driver；
Described seal bar and drive link is linked together by power transmission shaft, and seal bar and drive link are divided into north-south and thing
To two kinds；Power transmission shaft is arranged in Limit Bearing；The seal bar is located above described top ventilating opening film, and drive link is located at
Below described daylighting and bottom ventilating opening film, the push rod of drive link push-rod electric machine is connected with East and West direction drive link；Limit shaft
Hold and be fixed on drive link push-rod electric machine fixed seat on the truss in heliogreenhouse；Cut by described at East and West direction drive link two ends
V shape driver is connected with north-south drive link, and East and West direction mechanical force is converted into north-south mechanical force by scissor-type driver；Institute
The scissor-type driver stated is made up of two scissors rods, and a scissors rod can only make circular-rotation by the center of circle of tie point, another
Root scissors rod can only move linearly along East and West direction drive link direction and can not do circular-rotation, and the scissors rod that can be moved linearly is same
When be connected with north-south drive link, under the drive of East and West direction drive link, realize electronic-controlled power steering；The rectangular S of described power transmission shaft
Type, due to the limitation of Limit Bearing, power transmission shaft can only be rotated in Limit Bearing, it is impossible to displacement, be realized by push-rod electric machine push-and-pull
Rubber strip is posted in the opening and closing of seal cover board and sealing ring, seal cover board lower surface and sealing ring upper surface, for strengthening sealing
Effect；
The push rod elongation control East and West direction drive link motion of actuator push rod motor, and control north-south to pass by scissor-type driver
Lever is moved, and drive link does the movement in a curve using Limit Bearing as the center of circle, and controls East and West direction seal bar also to do by power transmission shaft
Using Limit Bearing as the movement in a curve in the center of circle；Limit Bearing coordinates with power transmission shaft, presses close to seal bar and drive link, when pressing close to,
The rubber strip on seal bar bottom and drive link top is mutually extruded, and occurs elastic deformation, by the top ventilating opening at the top of heliogreenhouse
Film and middle daylighting and bottom ventilating opening film step up, and realize to ventilating opening thorough seal；When needing ventilation, drive link push rod
The push rod of motor shrinks, and separates seal bar and drive link, releases the sealing to ventilating opening plastic sheeting, and producing sufficient space makes
Ventilating opening is opened；
Described intelligence control system includes temperature sensor, Raindrop sensor, touch-screen, PLC and power adapter；Described touches
Touch screen, PLC and power adapter to be placed in control cabinet, PLC is opened with touch-screen, temperature sensor, Raindrop sensor, fine motion respectively
Close, ventilating opening push-rod electric machine and drive link push-rod electric machine are connected；Described temperature sensor and Raindrop sensor are arranged on daylight
Greenhouse is on the truss of vent position.
2. a kind of sunlight ceiling intelligent aeration control method as claimed in claim 1, it is characterised in that step is as follows：
1) ventilating opening push-rod electric machine is set to main motor, drive link push-rod electric machine is set to stand-by motor；
Main motor control ventilating opening opening and closing, rotates forward and closes, reversion is opened；Stand-by motor controls vent seal, rotates forward locking close
Envelope, reversion unblock, main motor uncontrollable ventilating opening opening and closing when stand-by motor rotates forward locking；The microswitch plays spacing make
With；
2) independent variable (1) crop accumulated temperature A is defined；(2) ceiling temperature k in heliogreenhouse；(3) lower limit temperature w in heliogreenhouse；
(4) temperature a1 is acutely raised in heliogreenhouse；(5) rise temperature a2 is relaxed in heliogreenhouse；(6) acutely decline in heliogreenhouse
Temperature a3；(7) decline temperature a4 is relaxed in heliogreenhouse；(8) correction coefficient L；(9) it is main and auxiliary to help motor to work on power the time；
(10) daily dehumidifying moment and duration m；(11) beginning and ending time of program；User can be described from change from touch-screen input
Occurrence is measured, to reach according to long-term cropping species, heliogreenhouse performance, the ventilation of crop growth period intelligent control sunlight ceiling
The purpose of mouth；
3) sunlight indoor crops actually active accumulated temperature T of the dependent variable (1) using day as time step is defined；(2) using minute as when
Between step-length the actually active accumulated temperature T ' of sunlight indoor crops；(3) the total days running D of program；(4) program days running d；
(5) mark particular point in time t；(6) temperature threshold c；(7) accumulated temperature offset b；
The T values calculating process is as follows：
At interval of 1 minute collecting temperature data；Add up all temperature values after terminating within 1 day, temperature averages v is sought, based on formula (1)
Calculate T：
T ' the values calculating process is as follows：
At interval of 1 minute collecting temperature data；T is calculated to real-time mean temperature v ', T ' is calculated by formula (2)：
4) criterion
Described Raindrop sensor real-time data collection, PLC judges whether precipitation, if precipitation, to prevent greenhouse from intaking, no longer examines
Consider temperature conditions in greenhouse, the positive closing ventilating opening in the case where ventilating opening is opened；If without precipitation, performing in order following
First, 2 two：
First：Using current point in time as starting point, whether former temperature drop in 30 minutes is standard more than a4 values：If not above
A4, jumps to Article 2 and continues executing with；If more than a4, continuing to determine whether more than a3, if more than a3, ventilating opening is completely closed, if
Not above a3, ventilating opening closes half；
Article 2：Using current point in time as starting point, whether former 30 minutes temperature are increased beyond a2 values for standard：If being not above
A2, ventilating opening is completely closed；If more than a2, using whether more than a1 values as standard：If more than a1 values, marking current point in time,
It is denoted as t；Perform following 1st article of program；If not above a1 values, marking current point in time, being also denoted as t；Perform following 2nd article：
1st article：C=(∑ T)/d-A/D, if c<0, b=-c is obtained, if c >=0, b=0 is obtained, reads since t points to real-time temperature
Degrees of data, T ' is calculated by formula (2), and this value is more than after L* (A/D+b), and ventilating opening is opened completely；
2nd article：C=(∑ T)/d-A/D, if c<0, b=-c is obtained, if c >=0, b=0 is obtained, reads since t points to real-time temperature
Degrees of data, T ' is calculated by formula (2), and this value is more than after L* (A/D+b), and ventilating opening opens half；
During the dehumidifying moment inputted to user, in the case of precipitation, pause performs the instruction judged by temperature conditionss, if
Ventilating opening has been switched on, then keeps this state m seconds, if ventilating opening is closed, and opens ventilating opening and is kept for m seconds, is continued executing with afterwards
The instruction judged by temperature conditionss.
3. a kind of sunlight ceiling intelligent ventilating system as claimed in claim 1, it is characterised in that the interface of the touch-screen
Including：First bed boundary includes user name, and password resets cryptographic options；Second bed boundary includes manual controlled motor, and parameter is defeated
Enter, motor status are shown, newest temperature value option；Third layer interface includes detailed temperature data, per mean daily temperature, daily
T values, accumulative T values, daily temperature extremal is maximum and minimum value and time of occurrence option.
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| CN201710327635.6A CN107087521B (en) | 2017-05-10 | 2017-05-10 | Intelligent ventilation system for sunlight greenhouse roof and control method thereof |
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| CN201710327635.6A CN107087521B (en) | 2017-05-10 | 2017-05-10 | Intelligent ventilation system for sunlight greenhouse roof and control method thereof |
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| CN107836255A (en) * | 2017-11-24 | 2018-03-27 | 北京守朴科技有限公司 | Heliogreenhouse ventilation controller and control system |
| CN109052874A (en) * | 2018-10-23 | 2018-12-21 | 成都工业学院 | Suitable for High aititude low temperature constructed wetland sewage purification system |
| CN109744027A (en) * | 2019-01-29 | 2019-05-14 | 四川农业大学 | Shelter from rain Intelligent ventilating apparatus and its control method |
| CN109769526A (en) * | 2019-01-29 | 2019-05-21 | 成都乡春智农农业研发中心 | Shelter from rain |
| CN110959435A (en) * | 2019-12-13 | 2020-04-07 | 张赛 | Multifunctional agricultural plastic film greenhouse and use method thereof |
| CN111492868A (en) * | 2020-04-01 | 2020-08-07 | 中铁第五勘察设计院集团有限公司 | Temperature control system and control method for plant planting box |
| CN115529987A (en) * | 2022-11-30 | 2022-12-30 | 中化现代农业有限公司 | Air port regulating and controlling method, device, equipment and storage medium for crop facility |
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| CN115529987A (en) * | 2022-11-30 | 2022-12-30 | 中化现代农业有限公司 | Air port regulating and controlling method, device, equipment and storage medium for crop facility |
| CN115529987B (en) * | 2022-11-30 | 2023-03-24 | 中化现代农业有限公司 | Air port regulating and controlling method, device, equipment and storage medium for crop facility |
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