CN103563685A - Self-adaptive light supplementing system and method for plant factory - Google Patents
Self-adaptive light supplementing system and method for plant factory Download PDFInfo
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Abstract
The invention discloses a self-adaptive light supplementing system and method for a plant factory. The distance between a light supplementing lamp 1 and plants 12 planted on a culture bed 10 is measured through distance measuring sensors 11, and a stepping motor 4 is driven to operate so as to drive a winding shaft 3 to rotate, so that the light supplementing lamp 1 is driven by steel wires 6 winding round winders 2 to rise or fall; and meanwhile, the light supplementing system can measure and calculate the illumination intensity of a plant canopy through an illumination intensity sensor 13, and then the illumination intensity of the light supplementing lamp 1 is adjusted to be adapted to light intensity requirements of different crops. The method is simple and practical, and the illumination intensity of the light supplementing lamp 1 and the distance between the light supplementing lamp 1 and the plants 12 can be adjusted, so that only set values of system software are required to be changed, and then culture requirements of the different plants for the space and the illumination intensity can be met. The system and the method are applicable to light supplementing for culture of the various plants in the plant factory.
Description
Technical field
The present invention relates to the artificial light source field of plant factor, specifically, is a kind of self adaptation light compensation method and system of using for plant factor.
Background technology
Plant factor is the peak of Facility Agriculture Development, it has and can produce continuously in the anniversary, can under the severe condition of environment, produce, without agricultural chemicals, can produce safe and high-quality agricultural products, the advantages such as workload is light, easy operating and comfortable working environment.Recent years, for the research of plant factor, attach great importance to both at home and abroad.But because the construction cost in early stage of plant factor is higher, its energy resource consumption (especially electric energy) is very large, causes operation cost very high, limits the practical application of plant factor always.
At present, plant factor mostly runs energy consumption as artificial light source to reduce plant factor at trial application LED.Due to advantages such as LED luminance are high, volume is little, the life-span is long, be day by day subject to people and pay attention to.Because LED luminous efficiency is high, its quantity of heat production is just relatively less, therefore can make artificial light source from crop very close to.Plant has the process of a growth, and along with the growth of plant, the distance of plant and artificial light source also shortens constantly, causes artificial light source excessively near apart from plant, thereby the phenomenon such as plant is produced burn.Present stage, the patent about LED light supplementing lamp for plants had a lot, 2012203333285.7), " the Novel LED light source plate that a kind of novel plant factory is used " (application number: 200820118256.2) such as " the LED light source device that a kind of closed plant factor is used " (application number:, these light sources can only regulate the ratio of red blue light, can not measure the distance between plant and light source, more automatically the height of regulating plant and light source.
Existing plant factor generally adopts the excessive method of the distance adjustment of plant and artificial light source, to prevent after plant growth because contact artificial light source is burnt.But can cause following impact: reduce the uniformity of the proportion of red blue light of light source, affect plant growth; The loss of the excessive increase artificial light source of distance, the availability of reduction artificial light source, can not meet photosynthesis of plant demand.If adopt the artificial distance between artificial light source and plant plant factor in of intermittently adjusting, easily cause production environment to pollute, but also increasing staff's workload.Therefore need to design a kind of light-supplementing system that can automatically regulate distance and intensity of illumination between artificial light source and plant, be used for improving resource availability, reduce staff's labour intensity, improve the automatization level of whole plant factor.
Summary of the invention
The object of the present invention is to provide a kind of plant factor self adaptation light-supplementing system and method, realize and automatically measure the distance between plant and light source, and the height of automatic regulating plant and light source, to reduce staff's labour intensity, improve the availability in plant factor space simultaneously and reduce energy consumption, not changing hardware.
In order to solve above technical problem, the concrete technical scheme that the present invention adopts is as follows.
A self adaptation light-supplementing system, is characterized in that: described light-supplementing system comprises control module and Executive Module; Described control module is comprised of a plurality of distance measuring sensors (11) and controller;
Described Executive Module comprises light compensating lamp (1), winder (2), spool (3), stepper motor (4), Worm Wheel System case (5), steel cable (6), pulley assembly (7), bearing block (8), cultivating stand (9) and cultivation bed (10); The stepper motor (4) being fixed on cultivating stand (9) directly connects with the worm screw of Worm Wheel System case (5); It is upper that spool (3) one end is connected in Worm Wheel System case (5), and the other end is connected with the bearing block (8) being fixed on cultivating stand (9), and winder (2) is fixed to be connected on spool (3); Two steel cables 6 are wound in respectively that a winder (2) is upper and around on the contrary, one end of steel cable 6 is connected with light compensating lamp 1 after walking around pulley assembly (7), in other end connection winder (2) groove of steel cable (6); Stepper motor (4) rotates at the upper winder (2) of spool (3) by 5 drive installations of Worm Wheel System case, the length of the steel cable (6) between pulley assembly (7) and light compensating lamp (1) shortens thereupon or increases, thereby light compensating lamp (1) is moved up and down.
A plurality of distance measuring sensors (11) are uniformly distributed and are arranged on light compensating lamp (1) at vertical and horizontal.
Worm and gear in Worm Wheel System case (5) in described Executive Module has auto-lock function.
Intensity of illumination sensor (13) is installed on L-type support (14), by the relative position of adjusting knob (16) capable of regulating L-type support (14) and stand base (15), thus capable of regulating illumination intensity sensor (13) and light compensating lamp (1) between relative distance.
Utilize the light compensation method of described a kind of plant factor self adaptation light-supplementing system, it is characterized in that: by light-supplementing system, automatically regulate the spacing between light compensating lamp (1) and plant (12), light-supplementing system is measured the distance between light compensating lamp (1) and plant (12) automatically by distance measuring sensor (11), after draw minimum of a value, using minimum of a value as the last measured value of system; The size of measured distance value and preset value between light-supplementing system comparable complement light modulation (1) and plant (12), if measured value is less than preset range lower limit, system drive stepper motor (4) forward, drives light compensating lamp (1) to rise, and makes spacing become large; If measured value is greater than the preset range upper limit, system drive stepper motor (4) reversion, drives light compensating lamp (1) to decline, and makes pitch smaller; Light-supplementing system height preset range can be passed through controller manual amendment, the requirement to growing space of cultivated plant to meet.
Utilize the light compensation method of described a kind of plant factor self adaptation light-supplementing system, it is characterized in that: the intensity of illumination that automatically regulates light compensating lamp (1) by light-supplementing system, light-supplementing system is the vertical range with light compensating lamp (1) by the intensity of illumination that is arranged on intensity of illumination sensor (13) on L-type support (14) and stay wire displacement sensor (17) and records respectively intensity of illumination sensor (13) relevant position and intensity of illumination sensor (13), then light-supplementing system according to measure measured distance value between gained light compensating lamp (11) and plant (12) and the illumination intensity value of surveying and vertical range value calculate the intensity of illumination of plant canopy, then relatively illumination intensity value and the light-supplementing system of plant canopy are preset intensity of illumination scope to light-supplementing system, if be greater than the default intensity of illumination range limit of light-supplementing system, reduce the intensity of illumination of light compensating lamp (1), if be less than the default intensity of illumination scope lower limit of light-supplementing system, the intensity of illumination of light compensating lamp (1) that raises, the default intensity of illumination scope of light-supplementing system can be passed through controller manual amendment, the photosynthesis demand of cultivated plant to meet.
The present invention has beneficial effect.Light-supplementing system of the present invention is the height between main regulation light compensating lamp and plant and light compensating lamp intensity of illumination according to preset value, only needs change light-supplementing system preset range value just can meet the requirement of different plants to space and illumination; The data that light-supplementing system records according to distance measuring sensor and intensity of illumination sensor, can reduce labor strength from main regulation light compensating lamp height and intensity of illumination with plant growth, reduce the contaminated probability of plant factor's clean space, improve energy utilization rate.
Accompanying drawing explanation
Fig. 1 is Executive Module front view of the present invention;
Fig. 2 is Executive Module vertical view of the present invention;
Fig. 3 is Executive Module end view of the present invention;
Fig. 4 is distance measuring sensor scheme of installation of the present invention;
Fig. 5 is sensor support structure schematic diagram of the present invention.
In figure: 1, light compensating lamp; 2, winder; 3, spool; 4, stepper motor; 5, Worm Wheel System case; 6, steel cable; 7, pulley assembly; 8, bearing block; 9, cultivating stand; 10, cultivation bed; 11, distance measuring sensor; 12, plant; 13, intensity of illumination sensor; 14, L-type support; 15, stand base; 16, position adjustments knob; 17, stay wire displacement sensor.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail.
Shown in Fig. 1, Fig. 2 and Fig. 3, Executive Module comprises light compensating lamp 1, winder 2, spool 3, stepper motor 4, Worm Wheel System case 5, steel cable 6, pulley assembly 7, bearing block 8, cultivating stand 9 and cultivation bed 10.Cultivating stand 9 is cell cubes for complete cultivating stand, and except light compensating lamp 1, other all component all be take cultivating stand 9 and installed as basis.Wherein cultivation bed 10 is Soilless culture troughs of planting plants 12, and bearing block 8 plays a part to support spool 3, and pulley assembly 7 is for changing the direction of steel wire rope 6.When stepper motor 4 rotations, electric machine main shaft drives the worm screw in Worm Wheel System case 5 to rotate, and one group of Worm Wheel System in Worm Wheel System case 5 drive the spool 3 being connected with worm gear to rotate, and then the winder 2 that drive is connected with spool 3 rotates.System has 4 steel cables 6, be wrapped in respectively on two winders 2 that are arranged on spool 3, and two steel cables 6 on same winder 2 around on the contrary.The other end of steel cable 6 is fixed on light compensating lamp 1, and fixing point is approaching the position at four right angles of light compensating lamp 1.When spool 3 forward, drive winder 2 forwards, steel wire rope 6 is constantly wound on winder 2, and the rope length of the steel wire rope 6 between winder 2 and light compensating lamp 1 is shortened, thereby makes light compensating lamp 1 increase; When spool 3 reversion, drive winder 2 reversions, steel wire rope 6 constantly lays out from winder 2, makes the rope of the steel wire rope 3 between winder 2 and light compensating lamp 1 long elongated, thereby light compensating lamp 1 is declined.
Shown in Fig. 4, adopt multiple spot to arrange distance measuring sensor 11, minute point measurement romaine lettuce height, then, according to the whole plant height values of data estimation of obtaining, finally obtains the required artificial light source of control system and the actual range between plant.On light compensating lamp 1, arrange 6 distance measuring sensors 11, the plant 12 that can obtain upper 6 points of cultivation bed is 93mm, 89mm, 96mm, 80mm, 87mm and 99mm with the spacing of light compensating lamp 1, then by controller, compared the size of these numerical value, draw minimum distance value 80mm, be multiplied by the least estimated distance values 88mm that obtains all plants and artificial light source after error coefficient 1.1.
Shown in Fig. 5, intensity of illumination sensor 13 and stay wire displacement sensor 17 are arranged on L-type support 14 ends, L-type support 14 other ends insert in the cavity of stand base 15, during released position adjusting knob 16, L-type support 14 relatively stand base 15 slides up and down, when L-type support 14 is adjusted to precalculated position, tighten position adjustments knob 16, now L-type support 14 is relative with stand base 15 fixing.
Every 24 hours, light-supplementing system compared time and the scheduled time automatically, if light-supplementing system time 8:00 is less than scheduled time 9:00, continues standby; If the light-supplementing system time, 10:00 was greater than or equal to scheduled time 9:00, start to obtain data from 6 distance measuring sensors 11.Obtain 6 minimum of a value 80mm in data, be then multiplied by error coefficient 1.1, estimate the minimum spacing 88mm of light compensating lamp and plant.Minimum spacing estimated value 88mm and optimum spacing range 100mm ~ 110mm are made comparisons, if minimum spacing estimated value is greater than the upper limit 110mm of optimum spacing range, illustrate that distance is excessive, make electromotor forward, dwindle actual pitch, then continue circulation; If minimum spacing estimated value is less than the lower limit 100mm of optimum spacing range, illustrate that distance is too small, make electromotor reversion, increase actual pitch, then continue circulation; If minimum spacing estimated value is within optimum spacing range 100mm ~ 110mm, stop circulation, light-supplementing system continues operation, and in described embodiment, minimum spacing estimated value 88mm is less than the lower limit 100mm of optimum spacing range, so electromotor forward, to dwindle actual pitch.Then, light-supplementing system obtains respectively intensity of illumination and intensity of illumination sensor 13 and light compensating lamp 1 vertical interval data from intensity of illumination sensor 13 and stay wire displacement sensor 17, according to the distance 88mm, the intensity of illumination sensor 13 and light compensating lamp 1 vertical interval 70mm and intensity of illumination data 110 μ molm that record between light compensating lamp 1 and plant 12
-2s
-1, by light compensating lamp LED intensity-angle regression equation used, calculate plant canopy intensity of illumination 83.5 μ molm
-2s
-1, the model gain of parameter that intensity-angle regression equation Ke You producer provides, if plant canopy intensity of illumination calculated value is less than intensity of illumination preset value scope 150 ~ 160 μ molm
-2s
-1lower limit 150 μ molm
-2s
-1, increase the intensity of illumination of light compensating lamp; If be greater than preset value range limit 160 μ molm
-2s
-1, reduce light compensating lamp intensity of illumination; If within the scope of preset value, light-supplementing system standby is to prepare to enter circulation next time, plant canopy intensity of illumination 83.5 μ molm in described embodiment
-2s
-1be less than preset value scope 150 ~ 160 μ molm
-2s
-1lower limit 150 μ molm
-2s
-1so, need to increase the intensity of illumination of light compensating lamp 1, then continue this time circulation, until meet intensity of illumination preset value scope 150 ~ 160 μ molm
-2s
-1.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (6)
1.Yi Zhong plant factor self adaptation light-supplementing system, is characterized in that: described light-supplementing system comprises control module and Executive Module; Described control module is comprised of a plurality of distance measuring sensors (11) and controller;
Described Executive Module comprises light compensating lamp (1), winder (2), spool (3), stepper motor (4), Worm Wheel System case (5), steel cable (6), pulley assembly (7), bearing block (8), cultivating stand (9) and cultivation bed (10); The stepper motor (4) being fixed on cultivating stand (9) directly connects with the worm screw of Worm Wheel System case (5); It is upper that spool (3) one end is connected in Worm Wheel System case (5), and the other end is connected with the bearing block (8) being fixed on cultivating stand (9), and winder (2) is fixed to be connected on spool (3); Two steel cables 6 are wound in respectively that a winder (2) is upper and around on the contrary, one end of steel cable 6 is connected with light compensating lamp 1 after walking around pulley assembly (7), in other end connection winder (2) groove of steel cable (6); Stepper motor (4) rotates at the upper winder (2) of spool (3) by 5 drive installations of Worm Wheel System case, the length of the steel cable (6) between pulley assembly (7) and light compensating lamp (1) shortens thereupon or increases, thereby light compensating lamp (1) is moved up and down.
2. a kind of plant factor according to claim 1 self adaptation light-supplementing system, is characterized in that: a plurality of distance measuring sensors (11) are uniformly distributed and are arranged on light compensating lamp (1) at vertical and horizontal.
3. a kind of plant factor according to claim 1 self adaptation light-supplementing system, is characterized in that: the worm and gear in the Worm Wheel System case (5) in described Executive Module has auto-lock function.
4. a kind of plant factor according to claim 1 self adaptation light-supplementing system, it is characterized in that: intensity of illumination sensor (13) is installed on L-type support (14), by the relative position of adjusting knob (16) capable of regulating L-type support (14) and stand base (15), thus capable of regulating illumination intensity sensor (13) and light compensating lamp (1) between relative distance.
5. the light compensation method of a kind of plant factor self adaptation light-supplementing system as described in claim 1-4, it is characterized in that: by light-supplementing system, automatically regulate the spacing between light compensating lamp (1) and plant (12), light-supplementing system is measured the distance between light compensating lamp (1) and plant (12) automatically by distance measuring sensor (11), after draw minimum of a value, using minimum of a value as the last measured value of system; The size of measured distance value and preset value between light-supplementing system comparable complement light modulation (1) and plant (12), if measured value is less than preset range lower limit, system drive stepper motor (4) forward, drives light compensating lamp (1) to rise, and makes spacing become large; If measured value is greater than the preset range upper limit, system drive stepper motor (4) reversion, drives light compensating lamp (1) to decline, and makes pitch smaller; Light-supplementing system height preset range can be passed through controller manual amendment, the requirement to growing space of cultivated plant to meet.
6. the light compensation method of a kind of plant factor self adaptation light-supplementing system as described in claim 1-4, it is characterized in that: the intensity of illumination that automatically regulates light compensating lamp (1) by light-supplementing system, light-supplementing system is the vertical range with light compensating lamp (1) by the intensity of illumination that is arranged on intensity of illumination sensor (13) on L-type support (14) and stay wire displacement sensor (17) and records respectively intensity of illumination sensor (13) relevant position and intensity of illumination sensor (13), then light-supplementing system according to measure measured distance value between gained light compensating lamp (11) and plant (12) and the illumination intensity value of surveying and vertical range value calculate the intensity of illumination of plant canopy, then relatively illumination intensity value and the light-supplementing system of plant canopy are preset intensity of illumination scope to light-supplementing system, if be greater than the default intensity of illumination range limit of light-supplementing system, reduce the intensity of illumination of light compensating lamp (1), if be less than the default intensity of illumination scope lower limit of light-supplementing system, the intensity of illumination of light compensating lamp (1) that raises, the default intensity of illumination scope of light-supplementing system can be passed through controller manual amendment, the photosynthesis demand of cultivated plant to meet.
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