CN103060171A - Intelligentized illumination equipment and spectra modulation method for green alga culture - Google Patents
Intelligentized illumination equipment and spectra modulation method for green alga culture Download PDFInfo
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Abstract
The embodiment of the invention discloses intelligentized illumination equipment for green alga culture. The intelligentized illumination equipment comprises a storage module, a judgment module, a duty ratio acquisition module and a light source module, wherein the storage module records the growth parameters of the green algae; the judgment module judges the current growth state of the green algae; the duty ratio acquisition module acquires the growth characteristic parameters corresponding to the current growth state of the green algae according to the current growth state of the green algae and acquires blue light duty ratio corresponding to blue light currently needed by the green algae and red light duty ratio corresponding to red light according to the growth characteristic parameters; and the light source module generates a corresponding blue light PWM (Pulse Width Modulation) signal according to the blue light duty ratio, generates the blue light with corresponding illumination intensity according to the blue light PWM signal, generates a corresponding red light PWM signal according to the red light duty ratio and generates the red light with corresponding illumination intensity according to the red light PWM signal. The invention also discloses a spectra modulation method corresponding to the intelligentized illumination equipment. The intelligentized illumination equipment and the spectra modulation method which are provided by the invention can be used for increasing the light energy utilization efficiency of the green algae on a light source, thereby increasing the growth speed of the green algae.
Description
Technical field
The present invention relates to Intelligent light according to technical field, more particularly, relate to a kind of intelligent light irradiation apparatus for the green alga cultivation, also relate to a kind of spectral modulation method.
Background technology
Along with the rise of in recent years green alga aquaculture industry, the market requirement of green alga is increasing.Existing green alga cultural technique all is to adopt open raceway pond, if need to improve or optimize to the culture technique of open runway the culture condition of open runway, then must obtain optimum culture parameters by adopting the photosynthetic organism reactor to study.
Illumination is the important factor that affects chlorella growth and biochemical component.One of culture parameters that the photosynthetic organism reactor provides green alga is illumination, and existing photosynthetic organism reactor generally adopts sunlight, incandescent light or fluorescent lamp etc. as light source, the spectrum that source of artificial light provides a series of wavelength not wait, from the blue light of shortwave to green and yellow, arrive again the ruddiness of long wave, and green alga gets final product at the light that different growth time sections only need to obtain particular range of wavelengths and particular light intensity, so green alga is lower to the capacity usage ratio of above-mentioned light source, photosynthetic efficiency is low, thereby affects the speed of growth of green alga.
Summary of the invention
In view of this, the invention provides a kind of intelligent light irradiation apparatus and spectral modulation method of cultivating for green alga, overcoming in the prior art because green alga is lower to the optical energy utilization efficiency of source of artificial light, thereby affect the problem of the speed of growth of green alga.
For achieving the above object, the invention provides following technical scheme:
A kind of intelligent light irradiation apparatus for the green alga cultivation comprises:
Record the memory module of chlorella growth parameter, described chlorella growth parameter comprises: growth characteristics parameter and blue light dutycycle and the ruddiness dutycycle corresponding with described growth characteristics parameter;
Judge the judge module of the current growth conditions of described green alga;
Link to each other with described judge module and described memory module respectively, current growth conditions according to described green alga obtains the growth characteristics parameter corresponding with it, and obtains the dutycycle module according to what described growth characteristics parameter obtained ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of described green alga and ruddiness;
Link to each other with the described dutycycle module of obtaining, generate corresponding blue light pwm signal according to described blue light dutycycle, and generate the blue light of corresponding intensity of illumination and generate corresponding ruddiness pwm signal according to described ruddiness dutycycle according to described blue light pwm signal, and generate the light source module of the ruddiness of corresponding intensity of illumination according to described ruddiness pwm signal.
Preferably, in the above-mentioned intelligent light irradiation apparatus, described growth characteristics parameter comprises the growth phase of green alga, and the growth conditions of described green alga comprises the biomass of green alga, and the described dutycycle module of obtaining comprises:
Obtain the stage acquiring unit of the current growth phase of described green alga according to the current biomass of described green alga;
Link to each other with described stage acquiring unit, draw the generation unit of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of described green alga and ruddiness according to the current growth phase of described green alga.
Preferably, in the above-mentioned intelligent light irradiation apparatus, described growth characteristics parameter comprises that the biomass of green alga is interval, and the growth conditions of described green alga comprises the biomass of green alga, and the described dutycycle module of obtaining comprises:
Obtain the first interval acquiring unit in corresponding biomass interval according to the current biomass of described green alga;
Link to each other with the described first interval acquiring unit, draw the generation unit of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of described green alga and ruddiness according to the biomass interval of described green alga.
Preferably, in the above-mentioned intelligent light irradiation apparatus, described growth characteristics parameter comprises that the biomass of the growth phase of green alga and the green alga corresponding with the growth phase of described green alga is interval, described each growth phase is corresponding with a biomass interval at least, the growth conditions of described green alga comprises the biomass of green alga, and the described dutycycle module of obtaining comprises:
Obtain the current growth phase of described green alga according to the current biomass of described green alga, and obtain acquiring unit between the Second Region in current biomass interval according to described current biomass and described current growth phase;
Link to each other with acquiring unit between described Second Region, draw the generation unit of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of described green alga and ruddiness according to the biomass interval of described green alga.
Preferably, in the above-mentioned intelligent light irradiation apparatus, described growth characteristics parameter comprises: with the intensity of illumination threshold value of the intensity of illumination threshold value of the interval corresponding blue light of described biomass and ruddiness, with blu-ray drives electric current corresponding to the intensity of illumination threshold value of the intensity of illumination threshold value of described blue light and ruddiness and ruddiness drive current and with blue light dutycycle corresponding to described blu-ray drives electric current and the ruddiness dutycycle corresponding with described ruddiness drive current, the described dutycycle module of obtaining comprises:
Current biomass according to described green alga obtains biomass interval corresponding to current biomass, according to the interval intensity of illumination threshold value of corresponding blue light and the intensity of illumination threshold value of ruddiness of obtaining of described biomass, obtain the drive current unit according to what the intensity of illumination threshold value of the intensity of illumination threshold value of the blue light that obtains and ruddiness obtained corresponding blu-ray drives electric current and ruddiness drive current;
Link to each other with the described drive current unit that obtains, according to described blu-ray drives electric current to corresponding blue light dutycycle and the generation unit that obtains corresponding ruddiness dutycycle according to described ruddiness drive current.
Preferably, in the above-mentioned intelligent light irradiation apparatus, described generation unit is specially the generation unit that draws the 4th dutycycle of the 3rd dutycycle of the first dutycycle that wavelength is the first glow peak of 410nm-440nm, the second dutycycle that wavelength is the second glow peak of 445nm-480nm, the 3rd glow peak that wavelength is 610nm-640nm and the 4th glow peak that wavelength is 645nm-680nm according to the biomass interval.
Preferably, in the above-mentioned intelligent light irradiation apparatus, described blue light comprises that wavelength is illumination corresponding to the second glow peak that illumination corresponding to the first glow peak of 410nm-440nm and wavelength are 445nm-480nm, and described ruddiness comprises that wavelength is illumination corresponding to the 4th glow peak that illumination corresponding to the 3rd glow peak of 610nm-640nm and wavelength are 645nm-680nm.
Preferably, in the above-mentioned intelligent light irradiation apparatus, described light source module is semiconductor light source module, described semiconductor light source module comprises: according to the first kind diode of default rule arrangement, the Equations of The Second Kind diode, the 3rd class diode and the 4th class diode, so that described semiconductor light source module forms uniform light intensity and light quality at its shadow surface, wherein, described first kind diode sends the illumination corresponding with described the first glow peak, described Equations of The Second Kind diode sends the illumination corresponding with described the second glow peak, described the 3rd class diode sends the illumination corresponding with described the 3rd glow peak, and described the 4th class diode sends the illumination corresponding with described the 4th glow peak.
Preferably, in the above-mentioned intelligent light irradiation apparatus, described chlorella growth parameter also comprises the classification of green alga, the classification of described green alga comprises the kind of green alga and/or the kind of green alga, described growth characteristics parameter is corresponding with the classification of described green alga, described growth characteristics parameter comprises the growth phase of green alga and/or the biomass interval of green alga, and described intelligent light irradiation apparatus also comprises:
Link to each other with the described dutycycle module of obtaining, gather the parameter acquisition unit of the parameter of outside input, the parameter of described outside input comprises the classification of green alga;
Accordingly, the described dutycycle module of obtaining is specially according to the current growth conditions of described green alga and described green alga classification and obtains corresponding growth characteristics parameter, and obtains the dutycycle module according to what the growth characteristics parameter drew ruddiness dutycycle corresponding to blue light dutycycle corresponding to blue light and ruddiness.
Preferably, in the above-mentioned intelligent light irradiation apparatus, described growth characteristics parameter comprises biomass interval and growth phase, and described intelligent light irradiation apparatus also comprises:
Link to each other with described light source module, judging the current time when belonging to default light application time section, control the illumination control module that described light source module carries out illumination;
Link to each other with described illumination control module, in the situation that judging the current time, described illumination control module belongs to default light application time section, judge whether described current biomass does not belong to current biomass interval, if, then trigger the described dutycycle module of obtaining and obtain corresponding growth characteristics parameter according to the current growth conditions of described green alga, obtain the trigger module of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the required blue light of described green alga and ruddiness according to described growth characteristics parameter.
A kind of spectral modulation method for the green alga cultivation comprises:
Judge the current growth conditions of green alga;
Current growth conditions according to described green alga obtains the growth characteristics parameter corresponding with it, and obtain current required corresponding blue light dutycycle and ruddiness dutycycle corresponding to ruddiness of blue light of described green alga according to described growth characteristics parameter, the growth conditions of described green alga is corresponding with described growth characteristics parameter, and the ruddiness dutycycle that the blue light dutycycle that described growth characteristics parameter and described blue light are corresponding and ruddiness are corresponding is corresponding;
Generate corresponding blue light pwm signal according to described blue light dutycycle, and generate the blue light of corresponding intensity of illumination according to described blue light pwm signal, and generate corresponding ruddiness pwm signal according to described ruddiness dutycycle, and generate the ruddiness of corresponding intensity of illumination according to described ruddiness pwm signal.
Preferably, in the above-mentioned spectral modulation method, described blue light dutycycle comprises that wavelength is the first dutycycle of the first glow peak of 410nm-440nm and the second dutycycle of the second glow peak that wavelength is 445nm-480nm, and described ruddiness dutycycle comprises that wavelength is the 3rd dutycycle of the 3rd glow peak of 610nm-640nm and the 4th dutycycle of the 4th glow peak that wavelength is 645nm-680nm.
Via above-mentioned technical scheme as can be known, when adopting the intelligent light irradiation apparatus of cultivating for green alga provided by the invention, judge the current growth conditions of green alga by judge module, obtain green alga required corresponding blue light dutycycle and ruddiness dutycycle corresponding to ruddiness of blue light this moment by obtaining the dutycycle module, light source module generates corresponding blue light pwm signal according to the blue light dutycycle, and generate the blue light of corresponding intensity of illumination and generate corresponding ruddiness pwm signal according to the ruddiness dutycycle according to the blue light pwm signal, generate the ruddiness of corresponding intensity of illumination according to the ruddiness pwm signal, because dutycycle changes, the photon density of blue light and ruddiness can change, so intensity of illumination and the light quality of blue light and ruddiness change, light source module can send at the different growth conditions of green alga the corresponding wavelength of current growth conditions with green alga, thereby the light of intensity of illumination and light quality improves green alga to the efficiency of light energy utilization of light source, and then improves the speed of growth of green alga.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments of the invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to the accompanying drawing that provides other accompanying drawing.
Fig. 1 is the structural representation of the disclosed a kind of intelligent light irradiation apparatus of cultivating for green alga of the embodiment of the invention;
Fig. 2 obtains a kind of internal structure schematic diagram of dutycycle module in above-described embodiment;
Four class diodes puts in order in a kind of light source module that Fig. 3 provides for the embodiment of the invention;
The structural representation of a kind of intelligent light irradiation apparatus of cultivating for green alga that Fig. 4 provides for the embodiment of the invention;
The schema of a kind of spectral modulation method of cultivating for green alga that Fig. 5 provides for the embodiment of the invention;
The second that Fig. 6 provides for the embodiment of the invention is used for the schema of the spectral modulation method of green alga cultivation.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Illumination is the important factor that affects chlorella growth and biochemical component, and illumination comprises light quality (being that different wave length photon in varing proportions forms), intensity of illumination and light dark period (it is a light dark period with the time sum of not carrying out illumination that green alga is carried out the time of illumination).
Wherein, intensity of illumination for the light of Same Wavelength can change intensity of illumination by the control photon density, can change photon density by the working current that changes light source module, can change by the dutycycle that the pwm signal that obtains of dutycycle module is obtained in change the working current of light source module.
Prior art green algae culture system can not take full advantage of the illumination that sunlight or photosynthetic organism reactor provide, and utilizes the source of artificial light such as incandescent light or fluorescent lamp as light source, and cost is high, energy consumption is high, cultivation efficient is low.The existence of the problems referred to above, the industry that green alga is cultivated is in the state of a bottleneck all the time, traces it to its cause, and illumination is problem in the urgent need to address.
Embodiment one
See also accompanying drawing 1, structural representation for the disclosed a kind of intelligent light irradiation apparatus of cultivating for green alga of the embodiment of the invention, this intellectuality light irradiation apparatus comprises: memory module 100, judge module 101, obtain dutycycle module 102 and light source module 103, wherein:
The chlorella growth parameter comprises: growth characteristics parameter and blue light dutycycle and the ruddiness dutycycle corresponding with the growth characteristics parameter.
The growth phase of green alga roughly can divide three phases: vegetative period, peak period and aging time, and in vegetative period, the biomass of green alga is less, and organic (organic matter can be secondary metabolite) concentration is high in some dulling of water of cultivation green alga, the water body; In the peak period, the biomass of green alga can sharply rise many, and green alga occurs in a large number, because green alga quantity is more, so the water surface can be vivid green, and green alga consumption organism speed is fast, so organic concentration is lower; At aging time, green alga integral body is in succession of the old by the new period, overall activity a little less than, this moment, organic concentration was minimum, the collagen on frond surface or cellulosic protective capability also descend greatly, so being a bit darkish in color of water body no longer manifests vivid green.
Above-mentioned growth phase with green alga has roughly been divided three phases, the growth phase of embodiment of the invention green algae is not limited to three phases, the growth phase of different classes of green alga can be different, growth phase such as green alga can be divided into the double teachers such as lag phase, exponential phase of growth, allometry decrement phase, stationary phase and decline phase, wherein, the secondary metabolite in each stage such as the content of grease and composition are different, and there is corresponding fate in each stage.
From the foregoing at different growth phases, the biomass of green alga is different, the water body color of green alga is different, some organic concentration is different, so can judge by some organic concentration in the water body of strength of fluid optical detecting sensor detection cultivation green alga the current growth conditions of green alga.Also can water body that cultivate green alga be taken by IMAQ and treatment unit, and the image of taking is processed, obtain the current biomass of green alga according to the color of water body, thereby learn the current growth conditions of green alga.
Because each growth phase of green alga has the corresponding time, for example, be the tenth day of lunar month sky of chlorella growth vegetative period, the peak period is the centre ten days of chlorella growth, aging time is last ten days of chlorella growth, so judge module 101 can also be timing module, the growth characteristics parameter comprises time interval, the growth characteristics parameter is corresponding with this time interval, and this moment, the growth conditions of green alga referred to the time that judge module 101 records.
Obtain dutycycle module 102, be used for obtaining corresponding growth characteristics parameter according to current growth conditions, and draw blue light dutycycle corresponding to the required blue light of green alga and ruddiness dutycycle corresponding to ruddiness according to this growth characteristics parameter.
The embodiment of the invention, judge the current growth conditions of green alga by judge module 101, obtain green alga required corresponding blue light dutycycle and ruddiness dutycycle corresponding to ruddiness of blue light this moment by obtaining dutycycle module 102, light source module 103 generates corresponding blue light pwm signal according to the blue light dutycycle, and generate the blue light of corresponding intensity of illumination according to the blue light pwm signal, and generate corresponding ruddiness pwm signal according to the ruddiness dutycycle, generate the ruddiness of corresponding intensity of illumination according to the ruddiness pwm signal, because dutycycle changes, the photon density of blue light and ruddiness can change, so intensity of illumination and the light quality of blue light and ruddiness change, light source module 103 can send at the different growth conditions of green alga the corresponding wavelength of current growth conditions with green alga, thereby the illumination of intensity of illumination and light quality improves green alga to the efficiency of light energy utilization of light source, and then improves the speed of growth of green alga.
Embodiment two
See also Fig. 2, a kind of internal structure schematic diagram that obtains the dutycycle module in above-described embodiment, obtain dutycycle module 102 and comprise: obtain drive current unit 201 and generation unit 202, wherein:
Obtaining drive current unit 201 links to each other with generation unit 202.
Because the growth conditions of green alga is different, the blue light that needs and corresponding the changing of intensity of illumination threshold value of ruddiness, so the growth characteristics parameter can comprise: the corresponding relation of the intensity of illumination threshold value of green alga biomass interval and blue light and ruddiness, because the intensity of illumination threshold value of blue light and ruddiness is determined by electric current, and electric current is determined by dutycycle, so the growth characteristics parameter can also comprise: the corresponding relation in the dutycycle of blue light and ruddiness and biomass interval, the corresponding relation of the intensity of illumination threshold value of blue light and ruddiness and the drive current of blue light and ruddiness, and the corresponding relation of the dutycycle of the drive current of blue light and ruddiness and blue light and ruddiness.Certainly, the growth characteristics parameter can also comprise: the corresponding relation of the ruddiness dutycycle that the interval blue light dutycycle corresponding with the required blue light of green alga of biomass and ruddiness are corresponding, wherein, the different wave length that different dutycycles is corresponding and the light of varying strength.Obtain dutycycle module 102 and can obtain blue light dutycycle corresponding to the required blue light of green alga and ruddiness dutycycle corresponding to ruddiness according to the corresponding relation of storage in the memory module 100.
According to above-mentioned corresponding relation as can be known, the growth characteristics parameter comprises: with the intensity of illumination threshold value of the intensity of illumination threshold value of the interval corresponding blue light of biomass and ruddiness, respectively with blu-ray drives electric current corresponding to the intensity of illumination threshold value of the intensity of illumination threshold value of blue light and ruddiness and ruddiness drive current and with blue light dutycycle corresponding to blu-ray drives electric current and the ruddiness dutycycle corresponding with the ruddiness drive current.
Obtain drive current unit 201, be used for obtaining biomass interval corresponding to current biomass according to the current biomass of green alga, according to the interval intensity of illumination threshold value of corresponding blue light and the intensity of illumination threshold value of ruddiness of obtaining of biomass, obtain corresponding blu-ray drives electric current and ruddiness drive current according to the intensity of illumination threshold value of the blue light that obtains and the intensity of illumination threshold value of ruddiness;
Because green alga easily absorbs the second glow peak that the first glow peak that blue light light district medium wavelength is 410nm-440nm and wavelength are 445nm-480nm, and ruddiness light district medium wavelength is the 3rd glow peak of 610nm-640nm and illumination corresponding to the 4th glow peak that wavelength is 645nm-680nm, so preferred, obtain drive current unit 201, be used for according to interval required the first drive current corresponding to the first glow peak of green alga that obtain of the biomass of green alga, the second drive current that the second glow peak is corresponding, the 3rd drive current that the 3rd glow peak is corresponding and 4 wheel driven streaming current corresponding to the 4th glow peak.Corresponding generation unit 202 is used for obtaining the first dutycycle (corresponding with the first drive current), the second dutycycle (corresponding with the second drive current), the 3rd dutycycle (corresponding with the 3rd drive current) and the 4th dutycycle (corresponding with the 4 wheel driven streaming current) according to the first drive current, the second drive current, the 3rd drive current and 4 wheel driven streaming current.
Under different practical situation, obtain drive current unit 201 and also can only obtain blu-ray drives electric current (this electric current can be the first dutycycle corresponding electric current or electric current corresponding to the second dutycycle) and ruddiness drive current (this electric current can be the 3rd dutycycle corresponding electric current or electric current corresponding to the 4th dutycycle), corresponding generation unit 202 obtains corresponding blue light dutycycle (the first dutycycle or the second dutycycle) according to the blu-ray drives electric current, obtains corresponding ruddiness dutycycle (the 3rd dutycycle or the 4th dutycycle) according to the ruddiness drive current.
The below describes the another kind of internal structure of obtaining dutycycle module 102.
According to the difference of growth characteristics parameter, the function of obtaining dutycycle module 102 is just different.The growth phase that comprises green alga when the growth characteristics parameter, and the growth conditions of green alga obtains dutycycle module 102 and comprises when comprising the biomass of green alga: the stage acquiring unit that obtains the current growth phase of green alga according to the current biomass of green alga; Link to each other with the stage acquiring unit, draw the generation unit of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of green alga and ruddiness according to the current growth phase of green alga.
The biomass that comprises green alga when the growth characteristics parameter is interval, and the growth conditions of green alga obtains dutycycle module 102 and comprises: the first interval acquiring unit that obtains corresponding biomass interval according to the current biomass of green alga when comprising the biomass of green alga; Link to each other with the described first interval acquiring unit, draw the generation unit of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of described green alga and ruddiness according to the biomass interval of described green alga.
Preferably, the growth characteristics parameter comprises the biomass interval of green alga and the growth phase of green alga, a growth phase is corresponding with a biomass interval at least, at this moment, obtaining dutycycle module 102 comprises: obtain the current growth phase of described green alga according to the current biomass of described green alga, and obtain acquiring unit between the Second Region in current biomass interval according to described current biomass and described current growth phase; Link to each other with acquiring unit between described Second Region, draw the generation unit of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of described green alga and ruddiness according to the biomass interval of described green alga.
Preferably, the above-mentioned generation unit that obtains in the dutycycle module 102 specifically is used for drawing the 3rd dutycycle of the first dutycycle that wavelength is the first glow peak of 410nm-440nm, the second dutycycle that wavelength is the second glow peak of 445nm-480nm, the 3rd glow peak that wavelength is 610nm-640nm and the 4th dutycycle of the 4th glow peak that wavelength is 645nm-680nm according to the biomass interval.
Under different practical situation, generation unit 202 also can draw the first dutycycle that wavelength is the first glow peak of 410nm-440nm (or wavelength is the second dutycycle of the second glow peak of 445nm-480nm) and wavelength is the 3rd dutycycle (or wavelength is the 4th dutycycle of the 4th glow peak of 645nm-680nm) of the 3rd glow peak of 610nm-640nm according to the biomass interval.
The function of obtaining dutycycle module 102 can or be the part of functions in the micro-control unit (MCU) for micro-chip, and obtaining dutycycle module 102 can or be the part in the micro-control unit (MCU) for micro-chip.
The below is elaborated to the light source module 103 among the embodiment one.
When the blue light dutycycle includes only the first dutycycle (perhaps the second dutycycle), the ruddiness dutycycle includes only the 3rd dutycycle (or the 4th dutycycle), and light source module 103 can generate the first glow peak that wavelength is 410nm-440nm (or wavelength is the second glow peak of 445nm-480nm) and wavelength is the 3rd glow peak (or wavelength is the 4th glow peak of 645nm-680nm) of 610nm-640nm so.Certainly for the first dutycycle (or second dutycycle), can use two kinds of different types of diodes, when these two kinds of diodes are applied the voltage of same duty cycle, these two kinds of diodes can be exported different wave length, be that blue light comprises that wavelength is illumination corresponding to the second glow peak that illumination corresponding to the first glow peak of 410nm-440nm and wavelength are 445nm-480nm, for the 3rd dutycycle (or the 4th dutycycle), also can use two kinds of different types of diodes, when these two kinds of diodes are applied the voltage of same duty cycle, these two kinds of diodes can be exported different wave length, and namely ruddiness comprises that wavelength is illumination corresponding to the 4th glow peak that illumination corresponding to the 3rd glow peak of 610nm-640nm and wavelength are 645nm-680nm.Preferably, in the first glow peak or the second glow peak, the 3rd glow peak or the 4th glow peak that light source module 103 generates, each glow peak all has 30nm or less peak width at half height.
The below describes light source module 103 take light source module 103 as diode as example, preferably, light source module 103 can comprise: first kind diode, Equations of The Second Kind diode, the 3rd class diode and the 4th class diode, wherein, first kind diode sends the light corresponding with the first dutycycle, the Equations of The Second Kind diode sends the light corresponding with the second dutycycle, and the 3rd class diode sends the light corresponding with the 3rd dutycycle, and the 4th class diode sends the light corresponding with the 4th dutycycle.Under different practical situation, light source module 103 can comprise: first kind diode (or Equations of The Second Kind diode) and the 3rd class diode (or the 4th class diode).
Preferably, light source module 103 forms uniform light intensity at its shadow surface, is conducive to like this green alga to the efficiency of light energy utilization of light source, and then the speed of growth of raising green alga, certainly, according to different practical situation, light source module 103 also can not form uniform light intensity on its shadow surface.
If light source module 103 need to form uniform light intensity at its shadow surface, putting in order of various species diode needs to arrange according to default rule so, and the below comprises that take light source module 103 first kind diode, Equations of The Second Kind diode, the 3rd class diode and the 4th class diode describe as example:
See also Fig. 3, four class diodes puts in order in a kind of light source module 103 that provides for the embodiment of the invention, each circle represents each diode among the figure, wherein, the circle of mark " 1 " represents first kind diode, the circle of mark " 2 " represents the Equations of The Second Kind diode, and the circle of mark " 3 " represents the 3rd class diode, and the circle of mark " 4 " represents the 4th class diode.
An array unit in the 1031 expression light source modules 103 shown in the long and short dash line among Fig. 3, light source module 103 is to be made of a plurality of array elements, the number of the first kind diode that comprises in the array element 1031, Equations of The Second Kind diode, the 3rd class diode and the 4th class diode is identical, and puts in order as shown in Figure 3.Wherein, Fig. 3 just illustrates putting in order of Four types diode in the light source module 103 with a concrete example, but be not restricted to this, can be different according to each type number of diodes in the different practical situation array elements, and put in order and also can change, for example the Equations of The Second Kind diode also can be in first kind diode position, the 3rd class diode also can be in the 4th class diode position, the Equations of The Second Kind diode can be in the 3rd class diode position etc., only need light source module 103 to form even light intensity at its shadow surface, four class diodes are the realization that does not affect the embodiment of the invention of how to arrange on earth, so do not do concrete restriction at this.
Embodiment three
See also Fig. 4, the structural representation of a kind of intelligent light irradiation apparatus of cultivating for green alga that provides for the embodiment of the invention, this intellectuality light irradiation apparatus comprises: memory module 100, parameter acquisition unit 401, judge module 101, trigger module 402, obtain dutycycle module 102, light source module 103, illumination control module 403, wherein:
Obtain dutycycle module 102 and link to each other with memory module 100, parameter acquisition unit 401, light source module 103, trigger module 402 and illumination control module 403 respectively, illumination control module 403 links to each other with light source module 103.
The chlorella growth parameter comprises: growth characteristics parameter and blue light dutycycle and the ruddiness dutycycle corresponding with the growth characteristics parameter.The growth characteristics parameter comprises that biomass is interval.
The parameter of outside input comprises the classification of green alga.
The classification of green alga can comprise the kind of green alga and/or the kind of green alga.
The kind of green alga comprises: single-cell algae, colony algae, volvox, thread and tubulose algae, caulerpa etc.
Other green alga of same class also has different kind (comprising chlamydomonas, desmids such as single-cell algae), the different types of green alga of same classification may be different in the needed illumination of same growth conditions (light quality, light intensity and light dark period).
The growth conditions of green alga comprises the biomass of green alga.
The function of parameter acquisition unit 401 and judge module 101 can or be part of functions in the micro-control unit (MCU) for micro-chip, and parameter acquisition unit 401 and judge module 101 can or be a part in the micro-control unit (MCU) for micro-chip.
When the biomass of green alga falls into current biomass interval, illustrate as long as light source module 103 is kept current illumination, do not need to change, obtain dutycycle module 102 so need not trigger.
Concrete, trigger module 402 can be triggering device.
Obtain dutycycle module 102, be used for obtaining corresponding growth characteristics parameter according to the classification of current biomass and green alga, and draw blue light dutycycle corresponding to blue light and ruddiness dutycycle corresponding to ruddiness according to the growth characteristics parameter;
Because the green alga classification is a lot, different classes of green alga is different in the intensity of illumination threshold value of the required blue light of same biomass and ruddiness, so need the classification by parameter acquisition unit 401 collection green algas.If only need cultivate other green alga of same class, so can there be parameter acquisition unit 401 yet, obtain dutycycle module 102 this moment, be used for judging that biomass corresponding to described current biomass is interval, and obtain the dutycycle module according to what the biomass interval drew ruddiness dutycycle corresponding to blue light dutycycle corresponding to blue light and ruddiness.
General, green alga is in different growth phases, the dutycycle of pwm signal need to change, corresponding light wavelength (light quality) also can change, be that the intensity of illumination threshold value changes, but in the light dark period of same green alga, wavelength generally can not change, and namely the intensity of illumination threshold value is constant.
The growth characteristics parameter of green alga can also comprise: with the intensity of illumination threshold value of the intensity of illumination threshold value of the interval corresponding blue light of biomass and ruddiness, with blu-ray drives electric current corresponding to the intensity of illumination threshold value of the intensity of illumination threshold value of described blue light and ruddiness and ruddiness drive current and with blue light dutycycle corresponding to described blu-ray drives electric current and the ruddiness dutycycle corresponding with described ruddiness drive current.Accordingly, can store in the memory module 100 biomass interval with blue light the intensity of illumination threshold value and the relation curve of the intensity of illumination threshold value of ruddiness, the relation curve of the intensity of illumination threshold value of blue light and the intensity of illumination threshold value of ruddiness and blu-ray drives electric current and ruddiness drive current, the relation curve of blu-ray drives electric current and ruddiness drive current and blue light dutycycle and ruddiness dutycycle, corresponding relation between parameters can obtain by corresponding curve, certainly also can directly store the corresponding relation of parameters in the memory module 100.
In above-described embodiment, increase along with the green alga biomass, the working current of light source module 103 strengthens thereupon, this moment, the photon overall consistency of the light that light source module 103 sends increased, and in the process that the photon overall consistency increases, the 3rd glow peak intensity of illumination threshold value amplification is less in the spectrum, and the intensity of illumination threshold value increasing degree of the first glow peak and the second glow peak is larger, and ratio strengthens in total intensity of illumination threshold value.The intensity of illumination threshold value of the light that light source module 103 sends is larger, the drive current that needs is just larger, while is based on the proportional relation of dutycycle and drive current, make and obtain the corresponding dutycycle of dutycycle module 102 outputs, the dutycycle of the larger correspondence of required drive current is higher, wherein, dutycycle changes between 0%-100%, and namely light source module 103 can be as required changes between maximum exportable light intensity at zero-sum in the intensity of illumination threshold value of the first glow peak to the four glow peaks.
Describe device in detail among the disclosed embodiment of the invention described above, can adopt the method for various ways to realize for device of the present invention, therefore the invention also discloses several method, the below provides specific embodiment and is elaborated.
Embodiment four
See also Fig. 5, the schema of a kind of spectral modulation method of cultivating for green alga that provides for the embodiment of the invention, the method can comprise:
Step S501: the current growth conditions of judging green alga;
Step S502: the current growth conditions according to green alga obtains the growth characteristics parameter corresponding with it, and obtains current required corresponding blue light dutycycle and ruddiness dutycycle corresponding to ruddiness of blue light of green alga according to the growth characteristics parameter;
Because the biomass of green alga is different, the blue light that needs is different with the intensity of illumination threshold value of ruddiness, so the growth characteristics parameter can comprise: the intensity of illumination threshold value of the blue light that biomass is interval and corresponding with the biomass interval and the intensity of illumination threshold value of ruddiness, blu-ray drives electric current and the ruddiness drive current corresponding with the intensity of illumination threshold value of the intensity of illumination threshold value of blue light and ruddiness, and the blue light dutycycle corresponding with above-mentioned blu-ray drives electric current and the ruddiness dutycycle corresponding with above-mentioned ruddiness drive current, wherein, corresponding wavelength corresponding to different dutycycles and the light of varying strength.At this moment, obtaining current required corresponding blue light dutycycle and ruddiness dutycycle corresponding to ruddiness of blue light of described green alga according to the growth characteristics parameter specifically comprises: the current biomass according to green alga obtains biomass interval corresponding to current biomass, according to the interval intensity of illumination threshold value of corresponding blue light and the intensity of illumination threshold value of ruddiness of obtaining of biomass, obtain corresponding blu-ray drives electric current and ruddiness drive current according to the intensity of illumination threshold value of the blue light that obtains and the intensity of illumination threshold value of ruddiness, obtain corresponding ruddiness dutycycle according to the blu-ray drives electric current to corresponding blue light dutycycle and according to the ruddiness drive current.
The blue light dutycycle can comprise that wavelength is the first dutycycle of the first glow peak of 410nm-440nm and the second dutycycle of the second glow peak that wavelength is 445nm-480nm, and the ruddiness dutycycle can comprise that wavelength is the 3rd dutycycle of the 3rd glow peak of 610nm-640nm and the 4th dutycycle of the 4th glow peak that wavelength is 645nm-680nm.Under different practical situation, the blue light dutycycle can include only the first dutycycle (or second dutycycle), and the ruddiness dutycycle includes only the 3rd dutycycle (or the 4th dutycycle).
Step S503: generate corresponding blue light pwm signal according to the blue light dutycycle, and generate the blue light of corresponding intensity of illumination according to the blue light pwm signal, and generate corresponding ruddiness pwm signal according to the ruddiness dutycycle, and generate the ruddiness of corresponding intensity of illumination according to the ruddiness pwm signal.
Preferably, the blue light dutycycle comprises that wavelength is the first dutycycle of the first glow peak of 410nm-440nm and the second dutycycle of the second glow peak that wavelength is 445nm-480nm, and the ruddiness dutycycle comprises that wavelength is the 3rd dutycycle of the 3rd glow peak of 610nm-640nm and the 4th dutycycle of the 4th glow peak that wavelength is 645-680nm.
The embodiment of the invention, by judging the current growth conditions of green alga, obtain the dutycycle of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the at this moment required blue light of green alga and ruddiness, generate the blue light of respective wavelength and the ruddiness of respective wavelength according to blue light dutycycle and ruddiness dutycycle, because dutycycle changes, the photon density of blue light and ruddiness can change, so intensity of illumination and the light quality of blue light and ruddiness change, to sum up, the embodiment of the invention can be sent at the different growth conditions of green alga the corresponding wavelength of current growth conditions with green alga, the light of intensity of illumination and light quality, thereby improve green alga to the utilization ratio of light source, and then improve the speed of growth of green alga.
Embodiment five
See also Fig. 6, the second that provides for the embodiment of the invention is used for the schema of the spectral modulation method that green alga cultivates, and the method can comprise:
Step S601: the parameter that gathers outside input;
The parameter of outside input comprises the classification of green alga.
The kind of green alga comprises: single-cell algae, colony algae, volvox, thread and tubulose algae, caulerpa etc.
Other green alga of same class also has different kind (comprising chlamydomonas, desmids such as single-cell algae), the different types of green alga of same classification may be different in the needed illumination of same growth conditions (light quality, light intensity and light dark period).
Step S602: the current growth conditions of judging green alga;
Step S601 and step S602 do not have sequencing, just in order to draw conveniently, so just stipulated sequencing.
Step S603: obtain corresponding growth characteristics parameter according to current biomass and green alga classification;
Because the green alga classification is a lot, the intensity of illumination threshold value at the required blue light of same biomass and ruddiness of different classes of green alga is different, so need the classification of judgement green alga.If only cultivate a kind of green alga, can not have step S601 this moment, if there is not step S601, step S603 is for judging growth characteristics parameter corresponding to described current biomass so.
Step S604: judge whether the current time belong to default light application time section, if so, then enter step S605, if not, then do not deal with.
" if not, then not dealing with " among the step S604 in order to draw conveniently, might not be " not dealing with " just, can also be other, for example " if not, continues then to judge whether next time belongs to default light application time section ".This step is preferred steps, not this step, directly performing step S605 in the embodiment of the invention.
Step S605: judge whether current biomass belongs to current biomass interval, if not, then enter step S606, if so, then do not deal with.
" if not, then not dealing with " among the step S605 in order to draw conveniently, might not be " not dealing with " just, can also be other, for example " if not, continues then to judge whether next biomass constantly belongs to current biomass interval ".This step is preferred steps, and this step not in the embodiment of the invention at this moment, is revised as " if then enter step S606 " among the step S604.
Step S604 and step S605 do not have sequencing, just just for the convenient order of having stipulated of drawing.
Step S606: the current growth conditions according to green alga obtains corresponding growth characteristics parameter, obtains blue light dutycycle corresponding to the required blue light of green alga and ruddiness dutycycle corresponding to ruddiness according to the growth characteristics parameter;
Step S607: generate corresponding blue light pwm signal according to the blue light dutycycle, and generate the blue light of corresponding intensity of illumination and generate corresponding ruddiness pwm signal according to the ruddiness dutycycle according to the blue light pwm signal, and generate the ruddiness of corresponding intensity of illumination according to the ruddiness pwm signal.
Preferably, be specially according to the biomass interval and draw the 3rd dutycycle of the first dutycycle that wavelength is the first glow peak of 410nm-440nm, the second dutycycle that wavelength is the second glow peak of 445nm-480nm, the 3rd glow peak that wavelength is 610nm-640nm and the 4th dutycycle of the 4th glow peak that wavelength is 645nm-680nm.
Preferably, described blue light and the uniform light intensity of the formation of described ruddiness on its shadow surface.
Each embodiment adopts the mode of going forward one by one to describe in this specification sheets, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed method of embodiment, because it is corresponding with the disclosed device of embodiment, so description is fairly simple, relevant part gets final product referring to the explanation of device part.
Also need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation are separated with another entity or operational zone, and not necessarily requires or hint and have the relation of any this reality or sequentially between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby not only comprise those key elements so that comprise process, method, article or the equipment of a series of key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.In the situation that not more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, treater execution, and perhaps the combination of the two is implemented.Software module can place the storage media of any other form known in random access memory (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, in other embodiments realization.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (12)
1. one kind is used for the intelligent light irradiation apparatus that green alga is cultivated, and it is characterized in that, comprising:
Record the memory module of chlorella growth parameter, described chlorella growth parameter comprises: growth characteristics parameter and blue light dutycycle and the ruddiness dutycycle corresponding with described growth characteristics parameter;
Judge the judge module of the current growth conditions of described green alga;
Link to each other with described judge module and described memory module respectively, current growth conditions according to described green alga obtains the growth characteristics parameter corresponding with it, and obtains the dutycycle module according to what described growth characteristics parameter obtained ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of described green alga and ruddiness;
Link to each other with the described dutycycle module of obtaining, generate corresponding blue light pwm signal according to described blue light dutycycle, and generate the blue light of corresponding intensity of illumination and generate corresponding ruddiness pwm signal according to described ruddiness dutycycle according to described blue light pwm signal, and generate the light source module of the ruddiness of corresponding intensity of illumination according to described ruddiness pwm signal.
2. described intelligent light irradiation apparatus according to claim 1 is characterized in that, described growth characteristics parameter comprises the growth phase of green alga, and the growth conditions of described green alga comprises the biomass of green alga, and the described dutycycle module of obtaining comprises:
Obtain the stage acquiring unit of the current growth phase of described green alga according to the current biomass of described green alga;
Link to each other with described stage acquiring unit, draw the generation unit of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of described green alga and ruddiness according to the current growth phase of described green alga.
3. described intelligent light irradiation apparatus according to claim 1 is characterized in that, described growth characteristics parameter comprises that the biomass of green alga is interval, and the growth conditions of described green alga comprises the biomass of green alga, and the described dutycycle module of obtaining comprises:
Obtain the first interval acquiring unit in corresponding biomass interval according to the current biomass of described green alga;
Link to each other with the described first interval acquiring unit, draw the generation unit of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of described green alga and ruddiness according to the biomass interval of described green alga.
4. described intelligent light irradiation apparatus according to claim 1, it is characterized in that, described growth characteristics parameter comprises that the biomass of the growth phase of green alga and the green alga corresponding with the growth phase of described green alga is interval, described each growth phase is corresponding with a biomass interval at least, the growth conditions of described green alga comprises the biomass of green alga, and the described dutycycle module of obtaining comprises:
Obtain the current growth phase of described green alga according to the current biomass of described green alga, and obtain acquiring unit between the Second Region in current biomass interval according to described current biomass and described current growth phase;
Link to each other with acquiring unit between described Second Region, draw the generation unit of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the current required blue light of described green alga and ruddiness according to the biomass interval of described green alga.
5. each described intelligent light irradiation apparatus according to claim 3-4, it is characterized in that, described growth characteristics parameter comprises: with the intensity of illumination threshold value of the intensity of illumination threshold value of the interval corresponding blue light of described biomass and ruddiness, with blu-ray drives electric current corresponding to the intensity of illumination threshold value of the intensity of illumination threshold value of described blue light and ruddiness and ruddiness drive current and with blue light dutycycle corresponding to described blu-ray drives electric current and the ruddiness dutycycle corresponding with described ruddiness drive current, the described dutycycle module of obtaining comprises:
Current biomass according to described green alga obtains biomass interval corresponding to current biomass, according to the interval intensity of illumination threshold value of corresponding blue light and the intensity of illumination threshold value of ruddiness of obtaining of described biomass, obtain the drive current unit according to what the intensity of illumination threshold value of the intensity of illumination threshold value of the blue light that obtains and ruddiness obtained corresponding blu-ray drives electric current and ruddiness drive current;
Link to each other with the described drive current unit that obtains, according to described blu-ray drives electric current to corresponding blue light dutycycle and the generation unit that obtains corresponding ruddiness dutycycle according to described ruddiness drive current.
6. each described intelligent light irradiation apparatus according to claim 2-4, it is characterized in that, described generation unit is specially the generation unit that draws the 4th dutycycle of the 3rd dutycycle of the first dutycycle that wavelength is the first glow peak of 410nm-440nm, the second dutycycle that wavelength is the second glow peak of 445nm-480nm, the 3rd glow peak that wavelength is 610nm-640nm and the 4th glow peak that wavelength is 645-680nm according to the biomass interval.
7. according to claim 1 or 6 each described intelligent light irradiation apparatus, it is characterized in that, described blue light comprises that wavelength is illumination corresponding to the second glow peak that illumination corresponding to the first glow peak of 410nm-440nm and wavelength are 445nm-480nm, and described ruddiness comprises that wavelength is illumination corresponding to the 4th glow peak that illumination corresponding to the 3rd glow peak of 610nm-640nm and wavelength are 645nm-680nm.
8. described intelligent light irradiation apparatus according to claim 7, it is characterized in that, described light source module is semiconductor light source module, described semiconductor light source module comprises: according to the first kind diode of default rule arrangement, the Equations of The Second Kind diode, the 3rd class diode and the 4th class diode, so that described semiconductor light source module forms uniform light intensity and light quality at its shadow surface, wherein, described first kind diode sends the illumination corresponding with described the first glow peak, described Equations of The Second Kind diode sends the illumination corresponding with described the second glow peak, described the 3rd class diode sends the illumination corresponding with described the 3rd glow peak, and described the 4th class diode sends the illumination corresponding with described the 4th glow peak.
9. described intelligent light irradiation apparatus according to claim 1, it is characterized in that, described chlorella growth parameter also comprises the classification of green alga, the classification of described green alga comprises the kind of green alga and/or the kind of green alga, described growth characteristics parameter is corresponding with the classification of described green alga, described growth characteristics parameter comprises the growth phase of green alga and/or the biomass interval of green alga, and described intelligent light irradiation apparatus also comprises:
Link to each other with the described dutycycle module of obtaining, gather the parameter acquisition unit of the parameter of outside input, the parameter of described outside input comprises the classification of green alga;
Accordingly, the described dutycycle module of obtaining is specially according to the current growth conditions of described green alga and described green alga classification and obtains corresponding growth characteristics parameter, and obtains the dutycycle module according to what the growth characteristics parameter drew ruddiness dutycycle corresponding to blue light dutycycle corresponding to blue light and ruddiness.
10. described intelligent light irradiation apparatus according to claim 1 is characterized in that, described growth characteristics parameter comprises biomass interval and growth phase, and described intelligent light irradiation apparatus also comprises:
Link to each other with described light source module, judging the current time when belonging to default light application time section, control the illumination control module that described light source module carries out illumination;
Link to each other with described illumination control module, in the situation that judging the current time, described illumination control module belongs to default light application time section, judge whether described current biomass does not belong to current biomass interval, if, then trigger the described dutycycle module of obtaining and obtain corresponding growth characteristics parameter according to the current growth conditions of described green alga, obtain the trigger module of ruddiness dutycycle corresponding to blue light dutycycle corresponding to the required blue light of described green alga and ruddiness according to described growth characteristics parameter.
11. one kind is used for the spectral modulation method that green alga is cultivated, and it is characterized in that, comprising:
Judge the current growth conditions of green alga;
Current growth conditions according to described green alga obtains the growth characteristics parameter corresponding with it, and obtain current required corresponding blue light dutycycle and ruddiness dutycycle corresponding to ruddiness of blue light of described green alga according to described growth characteristics parameter, the growth conditions of described green alga is corresponding with described growth characteristics parameter, and the ruddiness dutycycle that the blue light dutycycle that described growth characteristics parameter and described blue light are corresponding and ruddiness are corresponding is corresponding;
Generate corresponding blue light pwm signal according to described blue light dutycycle, and generate the blue light of corresponding intensity of illumination according to described blue light pwm signal, and generate corresponding ruddiness pwm signal according to described ruddiness dutycycle, and generate the ruddiness of corresponding intensity of illumination according to described ruddiness pwm signal.
12. spectral modulation method according to claim 11, it is characterized in that, described blue light dutycycle comprises that wavelength is the first dutycycle of the first glow peak of 410nm-440nm and the second dutycycle of the second glow peak that wavelength is 445nm-480nm, and described ruddiness dutycycle comprises that wavelength is the 3rd dutycycle of the 3rd glow peak of 610nm-640nm and the 4th dutycycle of the 4th glow peak that wavelength is 645nm-680nm.
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