CN112235917A - Urban plant lighting system and method - Google Patents
Urban plant lighting system and method Download PDFInfo
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- CN112235917A CN112235917A CN202011049707.3A CN202011049707A CN112235917A CN 112235917 A CN112235917 A CN 112235917A CN 202011049707 A CN202011049707 A CN 202011049707A CN 112235917 A CN112235917 A CN 112235917A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005286 illumination Methods 0.000 claims abstract description 156
- 230000005855 radiation Effects 0.000 claims abstract description 99
- 230000006698 induction Effects 0.000 claims abstract description 19
- 230000008859 change Effects 0.000 claims abstract description 15
- 241000196324 Embryophyta Species 0.000 claims description 196
- 239000003990 capacitor Substances 0.000 claims description 153
- 230000004907 flux Effects 0.000 claims description 35
- 230000003595 spectral effect Effects 0.000 claims description 24
- 230000000243 photosynthetic effect Effects 0.000 claims description 19
- 230000007935 neutral effect Effects 0.000 claims description 13
- 230000029553 photosynthesis Effects 0.000 claims description 11
- 238000010672 photosynthesis Methods 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 10
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 230000008635 plant growth Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 claims 1
- 238000004364 calculation method Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 12
- 230000012010 growth Effects 0.000 description 11
- 230000019935 photoinhibition Effects 0.000 description 5
- 230000003292 diminished effect Effects 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000005059 dormancy Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
- H05B47/13—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by using passive infrared detectors
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses an urban plant lighting system and method, comprising an induction control unit, a color change adjusting unit, an illumination adjusting unit and a radiation calculating unit; the sensing control unit comprises a human body sensing module and a wavelength sensing module, wherein the human body sensing module is arranged on the lamp and used for detecting whether people exist around the lamp, and the wavelength sensing module is arranged at the bottom of the lamp and used for detecting the light quality nearby; the color change adjusting unit changes the lighting color according to the detected light quality and reduces the influence on the plants; the illumination adjusting unit controls illumination time and intensity according to plant requirements; and a radiation calculation unit calculating an illumination radiation amount of the illumination apparatus. The invention controls the illumination time by sensing whether people exist around and calculating illumination radiation, reduces the influence on plants and saves electricity, and protects the plants by changing color according to the types of the plants and the surrounding light quality.
Description
Technical Field
The invention relates to urban lighting, and belongs to the field of plant lighting.
Background
When plants grow in nature, the growth of the plants is closely related to the environmental illumination, and the illumination time, the illumination intensity and the light quality type all influence the growth of the plants. Urban greening vegetation or landscape plants are free from natural illumination in urban environment, and the growth of the urban plants depends on the urban environment and is directly influenced by the urban illumination. Along with the development of cities, more and more cities adopt a large amount of urban illumination at night, so that the urban lamplight at night is smooth, and beautiful urban night scenes not only make the cities brilliant, but also damage the ecological environment of the cities.
The influence of illumination on plants is reflected in the photosynthesis of the plants, a large amount of illumination stimulates the plants at night, even burns the plants, the photosynthesis of the plants is reduced, photoinhibition is generated, the transpiration causes metabolic imbalance too fast, inappropriate light quality causes the disturbance of the growth process of the plants to cause diseases and even death, and the overlong illumination time influences the growth of the plants.
Disclosure of Invention
The purpose of the invention is as follows: an urban plant lighting system and method are provided to solve the above problems.
The technical scheme is as follows: an urban plant lighting system comprises an induction control unit, a color change adjusting unit, an illumination adjusting unit and a radiation calculating unit;
the sensing control unit comprises a human body sensing module and a wavelength sensing module, wherein the human body sensing module is arranged on the lamp and used for detecting whether people exist around the lamp, and the wavelength sensing module is arranged at the bottom of the lamp and used for detecting the light quality nearby;
the color change adjusting unit changes the lighting color according to the detected light quality, and when the ambient light has large influence on the plants, the color is changed into the wavelength with small influence on the plants;
the illumination adjusting unit controls the illumination time and intensity according to the requirements of different plants, and reduces the influence of illumination on the plants;
and the radiation calculating unit is used for calculating the illumination radiation quantity of the lighting equipment and judging the plant state from the radiation quantity.
According to one aspect of the invention, the infrared wavelength of the human body is screened out to sense the arrival of a person, the light is turned on for illumination when the person approaches, and the light is turned off for dormancy when the person leaves, so that the illumination power consumption is saved.
According to one aspect of the invention, the sensing control unit and the human body sensing module comprise a human body sensing circuit, a sensing isolation circuit and an amplifying and transmitting circuit;
the induction isolation circuit comprises a human body inductor J1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, an operational amplifier U1: A, an operational amplifier U1: B, an operational amplifier U1: C, an operational amplifier U1: D, a diode D1, a diode D2, a diode D3 and a diode D4;
a 1 st pin of the human body inductor J1 is connected to one end of the capacitor C1, one end of the capacitor C2 and one end of the resistor R4, the other end of the capacitor C1 is grounded to the other end of the capacitor C2, the other end of the resistor R4 and one end of the resistor R5 are both connected to a power supply voltage, a 2 nd pin of the human body inductor J1 is connected to one end of the capacitor C3, one end of the resistor R1 and a 3 rd pin of the operational amplifier U1: a, a 3 rd pin of the human body inductor J1 is connected to the other end of the capacitor C3 and the other end of the resistor R1, a 2 nd pin of the operational amplifier U1: a is connected to one end of the capacitor C5, one end of the resistor R2 and one end of the resistor R3, the other end of the resistor R2 is connected to one end of the capacitor C4, and the other end of the capacitor C4 is grounded, the 1 st pin of the operational amplifier U1: A is respectively connected with the other end of the capacitor C5, the other end of the resistor R3 and one end of the capacitor C6, the other end of the capacitor C6 is connected with one end of the resistor R7, the other end of the resistor R7 is respectively connected with one end of the capacitor C7, one end of the resistor R8 and the 6 th pin of the operational amplifier U1: B, the 5 th pin of the operational amplifier U1: B is respectively connected with the cathode of the diode D1 and the anode of the diode D2, the 7 th pin of the operational amplifier U1: B is respectively connected with the other end of the capacitor C7, the other end of the resistor R8, the 10 th pin of the operational amplifier U1: C and the 13 th pin of the operational amplifier U1: D, the 9 th pin of the operational amplifier U1: C is respectively connected with the other end of the resistor R5, The anode of the diode D1 is connected, the 8 th pin of the operational amplifier U1: C is connected with the anode of the diode D3, the 12 th pin of the operational amplifier U1: D is respectively connected with the cathode of the diode D2 and one end of the resistor R6, the other end of the resistor R6 is grounded, the 14 th pin of the operational amplifier U1: D is connected with the anode of the diode D4, and the cathode of the diode D3 is connected with the cathode of the diode D4;
the amplifying and transmitting circuit comprises a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a potentiometer RV1, a capacitor C8, a capacitor C9, a capacitor C10, an operational amplifier U2: A, an operational amplifier U2: B and a diode D5;
one end of the resistor R9 is connected with the cathode of the diode D3, the cathode of the diode D4 and one end of the resistor R10 respectively, the other end of the resistor R9 is grounded, the other end of the resistor R10 is connected with one end of the capacitor C8 and one end of the resistor R11 respectively, the other end of the capacitor C8 is grounded, the other end of the resistor R11 is connected with the 3 rd pin of the operational amplifier U2: A, the 2 nd pin of the operational amplifier U2: A is connected with one end of the resistor R12 and one end of the resistor R13 respectively, the other end of the resistor R13 is grounded, the other end of the resistor R12 and one end of the resistor R16 are connected with a power supply voltage respectively, the 1 st pin of the operational amplifier U2: A is connected with one end of the resistor R14, the other end of the resistor R14 is connected with the anode of the diode D5, and the cathode of the diode D5 is connected with one end of the resistor R15 respectively, One end of the capacitor C9 is connected with a 5 th pin of the operational amplifier U2: B, the other end of the resistor R15 is grounded, the other end of the capacitor C9 is grounded, a 6 th pin of the operational amplifier U2: B is respectively connected with one end of the resistor R18 and one end of the resistor R19, the other end of the resistor R18 is connected with a 3 rd pin of the potentiometer RV1, a 1 st pin of the potentiometer RV1 is connected with the other end of the resistor R16, a 2 nd pin of the potentiometer RV1 is connected with one end of the resistor R17, the other end of the resistor R17 is grounded, the other end of the resistor R19 is connected with one end of the capacitor C10, the other end of the capacitor C10 is connected with one end of the resistor R20, and a 7 th pin of the operational amplifier U2: B and the other end of the resistor R20 are both connected with output signals.
According to one aspect of the invention, ambient light quality is detected, and illumination radiation is calculated based on the light quality
compensating according to the spectral radiant flux, and when the spectral radiant flux is lower than the expectation of the plant, selecting to change the spectral radiant flux into red orange light with the wave band of 610-780nm to stimulate the growth of the plant; when the spectral radiant flux is close to the expectation of the plants, the spectral radiant flux is selected to be changed into bluish purple light with the wave band of 380-505nm, and the plants are not stimulated; when the spectral radiant flux exceeds the expectation of the plant, the spectral radiant flux is selected to become yellow green light, the wave band 505 and 610nm, and the plant does not absorb the light.
According to one aspect of the invention, the illumination time is changed according to the type of the plant, when the plant is a long-day plant, the illumination receiving time is more than 14h, and the sum of the light turn-on time and the effective day time is controlled to be more than 14 h; when the plants are short-day plants, the illumination receiving time is less than 12h, and the sum of the light starting time and the effective day time is controlled within 12 h; when the plants are the middle-day illumination plants, the illumination receiving time is close to the night time, and the sum of the lighting starting time and the effective day time is controlled to be close to 12 h.
According to one aspect of the invention, the plant has a light saturation point, and when the light density reaches the upper limit of plant acceptance, the plant is saturated with light, at which point photosynthesis is strongest, and beyond the light saturation point, plant photosynthesis is diminished and photoinhibition occurs, whereby
PPFD is the photon flux density, E (lambda) is the irradiance, lambda is the wavelength, n is the Avogastron constant, h is the Planck constant, c is the speed of light,
the optical density of the illumination is calculated and the illumination is controlled to control the optical density near the optical saturation point.
According to one aspect of the invention, the illuminating radiation is not completely received by the plant, the plant receives only limited illuminating radiation, the photosynthetic limited radiation of the plant is calculated, and the photosynthetically active radiation of the plant is compared with the illuminating radiation acceptable to the plant, thereby
The above-mentioned
For photosynthetically active radiation, E (λ) is the irradiance, λ is the wavelength, n is the Avogastrol constant, h is the Planck constant, c is the speed of light, E is the photosynthetically active irradiance,
and calculating to obtain photosynthetic effective radiation, and finely adjusting the illumination according to the obtained comparison result so that the plant is in the optimal growth state.
A lighting method for urban plants comprises the following steps of estimating required illumination quantity according to urban plant species, and adjusting illumination through calculating illumination radiation quantity, wherein the method comprises the following specific steps:
calculating the magnitude of external illumination radiation, and then changing the light quality to compensate the external illumination radiation;
step 21, in the heliophilous plant mode, the radiation compensation degree for external illumination is high, and when the radiation degree for external illumination is lower than the standard, the light quality is selectively changed into red orange light, the wave band is 610-780nm, and the growth of plants is stimulated;
step 22, in the shade-tolerant plant mode, the radiation compensation degree of the outside illumination is medium, when the outside radiation degree is lower than the standard, the light quality is selectively changed into bluish violet light, the wave band is 380-;
step 23, in the neutral plant mode, the radiation compensation degree for the external illumination is low, when the radiation degree of the external illumination is lower than the standard, the light quality is selectively changed into yellow green light, the wave band is 505 and 610nm, and the plant does not absorb the light;
step 4, optimizing and calculating the distribution mode of the plant lighting lamps by using a particle swarm algorithm;
and 5, carrying out illumination fine adjustment according to the photosynthetic conversion efficiency of the illumination lamp radiation by the plants.
Has the advantages that: the invention can select illumination or dormancy to save power consumption by sensing approach of human body, select self light quality to compensate according to external light quality to keep plant growth state, select illumination time and sunshine time to complement to promote normal growth of plant according to plant species, calculate self illumination radiation, further obtain effective photosynthetic radiation of plant, adjust illumination intensity, and enable plant not to be influenced.
Drawings
Fig. 1 is a system block diagram of the urban plant lighting system of the present invention.
Fig. 2 is a schematic diagram of the human body sensing circuit of the present invention.
Detailed Description
Example 1
When the urban lighting area is provided with the pleasure plants, the lighting time needs to be increased to compensate for insufficient lighting.
In this embodiment, as shown in fig. 1, an urban plant lighting system includes an induction control unit, a color change adjustment unit, an illumination adjustment unit, and a radiation calculation unit;
the sensing control unit comprises a human body sensing module and a wavelength sensing module, wherein the human body sensing module is arranged on the lamp and used for detecting whether people exist around the lamp, and the wavelength sensing module is arranged at the bottom of the lamp and used for detecting the light quality nearby;
the color change adjusting unit changes the lighting color according to the detected light quality, and when the ambient light has large influence on the plants, the color is changed into the wavelength with small influence on the plants;
the illumination adjusting unit controls the illumination time and intensity according to the requirements of different plants, and reduces the influence of illumination on the plants;
and the radiation calculating unit is used for calculating the illumination radiation quantity of the lighting equipment and judging the plant state from the radiation quantity.
In further embodiment, the happiness light plant has more demand for illumination, accepts more illumination time and illumination intensity, selects to plant in the commercial area, and human response's function setting is opened at 0 a little in the morning, and after sunshine finishes, the illumination is normally opened before human response is opened, keeps the happiness light plant to have sufficient illumination.
As shown in fig. 2, in a further embodiment, the sensing control unit, the human body sensing module includes a human body sensing circuit, which includes a sensing isolation circuit and an amplifying and transmitting circuit;
the induction isolation circuit comprises a human body inductor J1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, an operational amplifier U1: A, an operational amplifier U1: B, an operational amplifier U1: C, an operational amplifier U1: D, a diode D1, a diode D2, a diode D3 and a diode D4;
a 1 st pin of the human body inductor J1 is connected to one end of the capacitor C1, one end of the capacitor C2 and one end of the resistor R4, the other end of the capacitor C1 is grounded to the other end of the capacitor C2, the other end of the resistor R4 and one end of the resistor R5 are both connected to a power supply voltage, a 2 nd pin of the human body inductor J1 is connected to one end of the capacitor C3, one end of the resistor R1 and a 3 rd pin of the operational amplifier U1: a, a 3 rd pin of the human body inductor J1 is connected to the other end of the capacitor C3 and the other end of the resistor R1, a 2 nd pin of the operational amplifier U1: a is connected to one end of the capacitor C5, one end of the resistor R2 and one end of the resistor R3, the other end of the resistor R2 is connected to one end of the capacitor C4, and the other end of the capacitor C4 is grounded, the 1 st pin of the operational amplifier U1: A is respectively connected with the other end of the capacitor C5, the other end of the resistor R3 and one end of the capacitor C6, the other end of the capacitor C6 is connected with one end of the resistor R7, the other end of the resistor R7 is respectively connected with one end of the capacitor C7, one end of the resistor R8 and the 6 th pin of the operational amplifier U1: B, the 5 th pin of the operational amplifier U1: B is respectively connected with the cathode of the diode D1 and the anode of the diode D2, the 7 th pin of the operational amplifier U1: B is respectively connected with the other end of the capacitor C7, the other end of the resistor R8, the 10 th pin of the operational amplifier U1: C and the 13 th pin of the operational amplifier U1: D, the 9 th pin of the operational amplifier U1: C is respectively connected with the other end of the resistor R5, The anode of the diode D1 is connected, the 8 th pin of the operational amplifier U1: C is connected with the anode of the diode D3, the 12 th pin of the operational amplifier U1: D is respectively connected with the cathode of the diode D2 and one end of the resistor R6, the other end of the resistor R6 is grounded, the 14 th pin of the operational amplifier U1: D is connected with the anode of the diode D4, and the cathode of the diode D3 is connected with the cathode of the diode D4;
the amplifying and transmitting circuit comprises a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a potentiometer RV1, a capacitor C8, a capacitor C9, a capacitor C10, an operational amplifier U2: A, an operational amplifier U2: B and a diode D5;
one end of the resistor R9 is connected with the cathode of the diode D3, the cathode of the diode D4 and one end of the resistor R10 respectively, the other end of the resistor R9 is grounded, the other end of the resistor R10 is connected with one end of the capacitor C8 and one end of the resistor R11 respectively, the other end of the capacitor C8 is grounded, the other end of the resistor R11 is connected with the 3 rd pin of the operational amplifier U2: A, the 2 nd pin of the operational amplifier U2: A is connected with one end of the resistor R12 and one end of the resistor R13 respectively, the other end of the resistor R13 is grounded, the other end of the resistor R12 and one end of the resistor R16 are connected with a power supply voltage respectively, the 1 st pin of the operational amplifier U2: A is connected with one end of the resistor R14, the other end of the resistor R14 is connected with the anode of the diode D5, and the cathode of the diode D5 is connected with one end of the resistor R15 respectively, One end of the capacitor C9 is connected with a 5 th pin of the operational amplifier U2: B, the other end of the resistor R15 is grounded, the other end of the capacitor C9 is grounded, a 6 th pin of the operational amplifier U2: B is respectively connected with one end of the resistor R18 and one end of the resistor R19, the other end of the resistor R18 is connected with a 3 rd pin of the potentiometer RV1, a 1 st pin of the potentiometer RV1 is connected with the other end of the resistor R16, a 2 nd pin of the potentiometer RV1 is connected with one end of the resistor R17, the other end of the resistor R17 is grounded, the other end of the resistor R19 is connected with one end of the capacitor C10, the other end of the capacitor C10 is connected with one end of the resistor R20, and a 7 th pin of the operational amplifier U2: B and the other end of the resistor R20 are both connected with output signals.
In this embodiment, the human body sensor J1 retains the wavelength of 7-14 μm, filters the infrared wavelength of other objects, detects that the human body passes through the 2 nd pin of the human body sensor J1, outputs the high level to the 3 rd pin of the operational amplifier U1: a for amplification, detects that the 1 st pin of the operational amplifier U1: a outputs the high level to the 6 th pin of the operational amplifier U1: B for two-pole amplification, the operational amplifier U1: C and the operational amplifier U1: D are comparators, the 7 th pin of the operational amplifier U1: B outputs the signal to the 10 th pin of the operational amplifier U1: C and the 13 th pin of the operational amplifier U1: D, compares the high level with the reference voltage, the 8 th pin of the operational amplifier U1: C and the 14 th pin of the operational amplifier U1: D output the high level, the high level is isolated from each other through the diode D3 and the diode D4, the voltage is output to a pin 3 of the operational amplifier U2: A through R10 and R11, the operational amplifier U2: A and the operational amplifier U2: B form a voltage comparator, the pin 3 of the operational amplifier U2: A is compared with a reference voltage received by a pin 2 of the operational amplifier U2: A, and when the pin 3 of the operational amplifier U2: A is higher than the pin 2 of the operational amplifier U2: A, the pin 1 of the operational amplifier U2: A outputs a high level. Similarly, the 7 th pin of the operational amplifier U2: B also outputs a high level, and the potentiometer RV1, the resistor R15 and the capacitor C9 control the working time.
In a further embodiment, the ambient light quality is detected, and the illumination radiation is calculated from the light quality
the photopic plants have higher expectation on spectral radiation flux, the spectral radiation flux is lower than the expectation, compensation selection is carried out according to the spectral radiation flux to change the photopic plants into red orange light, the wave band is 610-780nm, and the plants are stimulated to grow.
In a further embodiment, the heliophile is a long-day plant, the receiving illumination time is longer than 14h in one day, the illumination time is changed according to the heliophile, the sum of the illumination time and the effective day time is controlled to be more than 14h, the illumination is started after the end of the day and is continued to a 0 o' clock in the late night, then the illumination is converted into induction illumination, and the illumination is started according to the coming and going of people.
In a further embodiment, the plant has a light saturation point, and when the light density reaches the upper plant acceptance limit, the plant is saturated with light, at which point photosynthesis is strongest, and beyond the light saturation point, plant photosynthesis is diminished and photoinhibition occurs, whereby
PPFD is the photon flux density, E (lambda) is the irradiance, lambda is the wavelength, n is the Avogastron constant, h is the Planck constant, c is the speed of light,
the optical density of the illumination is calculated and the illumination is controlled to control the optical density near the optical saturation point.
In a further embodiment, the illuminating radiation is not completely received by the plant, the plant is only capable of receiving limited illuminating radiation, the photosynthetic limited radiation of the plant is calculated, and the photosynthetically active radiation of the plant is compared with the illuminating radiation acceptable to the plant, thereby
The above-mentioned
For photosynthetically active radiation, E (λ) is the irradiance, λ is the wavelength, n is the Avogastrol constant, h is the Planck constant, c is the speed of light, E is the photosynthetically active irradiance,
and calculating to obtain photosynthetic effective radiation, and finely adjusting the illumination according to the obtained comparison result so that the plant is in the optimal growth state.
Example 2
When the urban lighting area is provided with shade-tolerant plants, the lighting time needs to be reduced, and the lighting damage is reduced.
In this embodiment, as shown in fig. 1, an urban plant lighting system includes an induction control unit, a color change adjustment unit, an illumination adjustment unit, and a radiation calculation unit;
the sensing control unit comprises a human body sensing module and a wavelength sensing module, wherein the human body sensing module is arranged on the lamp and used for detecting whether people exist around the lamp, and the wavelength sensing module is arranged at the bottom of the lamp and used for detecting the light quality nearby;
the color change adjusting unit changes the lighting color according to the detected light quality, and when the ambient light has large influence on the plants, the color is changed into the wavelength with small influence on the plants;
the illumination adjusting unit controls the illumination time and intensity according to the requirements of different plants, and reduces the influence of illumination on the plants;
and the radiation calculating unit is used for calculating the illumination radiation quantity of the lighting equipment and judging the plant state from the radiation quantity.
In a further embodiment, the shade-tolerant plants have low illumination requirements and cannot accept redundant illumination time and illumination intensity, the plants are selected to be planted in residential areas, the human body sensing function is set to be started at 6 pm, and the plants are kept in a dormant state until the time, so that the illumination time of the shade-tolerant plants is reduced as much as possible.
As shown in fig. 2, in a further embodiment, the sensing control unit, the human body sensing module includes a human body sensing circuit, which includes a sensing isolation circuit and an amplifying and transmitting circuit;
the induction isolation circuit comprises a human body inductor J1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, an operational amplifier U1: A, an operational amplifier U1: B, an operational amplifier U1: C, an operational amplifier U1: D, a diode D1, a diode D2, a diode D3 and a diode D4;
a 1 st pin of the human body inductor J1 is connected to one end of the capacitor C1, one end of the capacitor C2 and one end of the resistor R4, the other end of the capacitor C1 is grounded to the other end of the capacitor C2, the other end of the resistor R4 and one end of the resistor R5 are both connected to a power supply voltage, a 2 nd pin of the human body inductor J1 is connected to one end of the capacitor C3, one end of the resistor R1 and a 3 rd pin of the operational amplifier U1: a, a 3 rd pin of the human body inductor J1 is connected to the other end of the capacitor C3 and the other end of the resistor R1, a 2 nd pin of the operational amplifier U1: a is connected to one end of the capacitor C5, one end of the resistor R2 and one end of the resistor R3, the other end of the resistor R2 is connected to one end of the capacitor C4, and the other end of the capacitor C4 is grounded, the 1 st pin of the operational amplifier U1: A is respectively connected with the other end of the capacitor C5, the other end of the resistor R3 and one end of the capacitor C6, the other end of the capacitor C6 is connected with one end of the resistor R7, the other end of the resistor R7 is respectively connected with one end of the capacitor C7, one end of the resistor R8 and the 6 th pin of the operational amplifier U1: B, the 5 th pin of the operational amplifier U1: B is respectively connected with the cathode of the diode D1 and the anode of the diode D2, the 7 th pin of the operational amplifier U1: B is respectively connected with the other end of the capacitor C7, the other end of the resistor R8, the 10 th pin of the operational amplifier U1: C and the 13 th pin of the operational amplifier U1: D, the 9 th pin of the operational amplifier U1: C is respectively connected with the other end of the resistor R5, The anode of the diode D1 is connected, the 8 th pin of the operational amplifier U1: C is connected with the anode of the diode D3, the 12 th pin of the operational amplifier U1: D is respectively connected with the cathode of the diode D2 and one end of the resistor R6, the other end of the resistor R6 is grounded, the 14 th pin of the operational amplifier U1: D is connected with the anode of the diode D4, and the cathode of the diode D3 is connected with the cathode of the diode D4;
the amplifying and transmitting circuit comprises a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a potentiometer RV1, a capacitor C8, a capacitor C9, a capacitor C10, an operational amplifier U2: A, an operational amplifier U2: B and a diode D5;
one end of the resistor R9 is connected with the cathode of the diode D3, the cathode of the diode D4 and one end of the resistor R10 respectively, the other end of the resistor R9 is grounded, the other end of the resistor R10 is connected with one end of the capacitor C8 and one end of the resistor R11 respectively, the other end of the capacitor C8 is grounded, the other end of the resistor R11 is connected with the 3 rd pin of the operational amplifier U2: A, the 2 nd pin of the operational amplifier U2: A is connected with one end of the resistor R12 and one end of the resistor R13 respectively, the other end of the resistor R13 is grounded, the other end of the resistor R12 and one end of the resistor R16 are connected with a power supply voltage respectively, the 1 st pin of the operational amplifier U2: A is connected with one end of the resistor R14, the other end of the resistor R14 is connected with the anode of the diode D5, and the cathode of the diode D5 is connected with one end of the resistor R15 respectively, One end of the capacitor C9 is connected with a 5 th pin of the operational amplifier U2: B, the other end of the resistor R15 is grounded, the other end of the capacitor C9 is grounded, a 6 th pin of the operational amplifier U2: B is respectively connected with one end of the resistor R18 and one end of the resistor R19, the other end of the resistor R18 is connected with a 3 rd pin of the potentiometer RV1, a 1 st pin of the potentiometer RV1 is connected with the other end of the resistor R16, a 2 nd pin of the potentiometer RV1 is connected with one end of the resistor R17, the other end of the resistor R17 is grounded, the other end of the resistor R19 is connected with one end of the capacitor C10, the other end of the capacitor C10 is connected with one end of the resistor R20, and a 7 th pin of the operational amplifier U2: B and the other end of the resistor R20 are both connected with output signals.
In this embodiment, the human body sensor J1 retains the wavelength of 7-14 μm, filters the infrared wavelength of other objects, detects that the human body passes through the 2 nd pin of the human body sensor J1, outputs the high level to the 3 rd pin of the operational amplifier U1: a for amplification, detects that the 1 st pin of the operational amplifier U1: a outputs the high level to the 6 th pin of the operational amplifier U1: B for two-pole amplification, the operational amplifier U1: C and the operational amplifier U1: D are comparators, the 7 th pin of the operational amplifier U1: B outputs the signal to the 10 th pin of the operational amplifier U1: C and the 13 th pin of the operational amplifier U1: D, compares the high level with the reference voltage, the 8 th pin of the operational amplifier U1: C and the 14 th pin of the operational amplifier U1: D output the high level, the high level is isolated from each other through the diode D3 and the diode D4, the voltage is output to a pin 3 of the operational amplifier U2: A through R10 and R11, the operational amplifier U2: A and the operational amplifier U2: B form a voltage comparator, the pin 3 of the operational amplifier U2: A is compared with a reference voltage received by a pin 2 of the operational amplifier U2: A, and when the pin 3 of the operational amplifier U2: A is higher than the pin 2 of the operational amplifier U2: A, the pin 1 of the operational amplifier U2: A outputs a high level. Similarly, the 7 th pin of the operational amplifier U2: B also outputs a high level, and the potentiometer RV1, the resistor R15 and the capacitor C9 control the working time.
In a further embodiment, the ambient light quality is detected, and the illumination radiation is calculated from the light quality
the expectation of the shade-tolerant plants on spectral radiant flux is lower, the spectral radiant flux is higher than the expectation, the shade-tolerant plants are compensated and selected to become yellow green light according to the spectral radiant flux, the wave band is 505 and 610nm, and the shade-tolerant plants do not absorb the light.
In a further embodiment, the shade-tolerant plants are short-day plants, the illumination receiving time is less than 12h in one day, the illumination time is changed according to the shade-tolerant plants, the sum of the illumination time and the effective day time is controlled within 12h, induction illumination is changed after the end of day, and illumination is started according to the coming and going of people.
In a further embodiment, the plant has a light saturation point, and when the light density reaches the upper plant acceptance limit, the plant is saturated with light, at which point photosynthesis is strongest, and beyond the light saturation point, plant photosynthesis is diminished and photoinhibition occurs, whereby
PPFD is the photon flux density, E (lambda) is the irradiance, lambda is the wavelength, n is the Avogastron constant, h is the Planck constant, c is the speed of light,
the optical density of the illumination is calculated and the illumination is controlled to control the optical density near the optical saturation point.
In a further embodiment, the illuminating radiation is not completely received by the plant, the plant is only capable of receiving limited illuminating radiation, the photosynthetic limited radiation of the plant is calculated, and the photosynthetically active radiation of the plant is compared with the illuminating radiation acceptable to the plant, thereby
The above-mentioned
For photosynthetically active radiation, E (λ) is the irradiance, λ is the wavelength, n is the Avogastrol constant, h is the Planck constant, c is the speed of light, E is the photosynthetically active irradiance,
and calculating to obtain photosynthetic effective radiation, and finely adjusting the illumination according to the obtained comparison result so that the plant is in the optimal growth state.
Example 3
When neutral plants are in the urban lighting area, the lighting time needs to be maintained, the lighting needs to be compensated when the lighting is insufficient, and the lighting needs to be reduced when the lighting is sufficient.
In this embodiment, as shown in fig. 1, an urban plant lighting system includes an induction control unit, a color change adjustment unit, an illumination adjustment unit, and a radiation calculation unit;
the sensing control unit comprises a human body sensing module and a wavelength sensing module, wherein the human body sensing module is arranged on the lamp and used for detecting whether people exist around the lamp, and the wavelength sensing module is arranged at the bottom of the lamp and used for detecting the light quality nearby;
the color change adjusting unit changes the lighting color according to the detected light quality, and when the ambient light has large influence on the plants, the color is changed into the wavelength with small influence on the plants;
the illumination adjusting unit controls the illumination time and intensity according to the requirements of different plants, and reduces the influence of illumination on the plants;
and the radiation calculating unit is used for calculating the illumination radiation quantity of the lighting equipment and judging the plant state from the radiation quantity.
In a further embodiment, the neutral plants have medium illumination requirements, the function of human body induction is set to be started at 9 o' clock in the evening, and the illumination is normally on before the function is started, so that the neutral plants are kept in stable illumination time.
As shown in fig. 2, in a further embodiment, the sensing control unit, the human body sensing module includes a human body sensing circuit, which includes a sensing isolation circuit and an amplifying and transmitting circuit;
the induction isolation circuit comprises a human body inductor J1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, an operational amplifier U1: A, an operational amplifier U1: B, an operational amplifier U1: C, an operational amplifier U1: D, a diode D1, a diode D2, a diode D3 and a diode D4;
a 1 st pin of the human body inductor J1 is connected to one end of the capacitor C1, one end of the capacitor C2 and one end of the resistor R4, the other end of the capacitor C1 is grounded to the other end of the capacitor C2, the other end of the resistor R4 and one end of the resistor R5 are both connected to a power supply voltage, a 2 nd pin of the human body inductor J1 is connected to one end of the capacitor C3, one end of the resistor R1 and a 3 rd pin of the operational amplifier U1: a, a 3 rd pin of the human body inductor J1 is connected to the other end of the capacitor C3 and the other end of the resistor R1, a 2 nd pin of the operational amplifier U1: a is connected to one end of the capacitor C5, one end of the resistor R2 and one end of the resistor R3, the other end of the resistor R2 is connected to one end of the capacitor C4, and the other end of the capacitor C4 is grounded, the 1 st pin of the operational amplifier U1: A is respectively connected with the other end of the capacitor C5, the other end of the resistor R3 and one end of the capacitor C6, the other end of the capacitor C6 is connected with one end of the resistor R7, the other end of the resistor R7 is respectively connected with one end of the capacitor C7, one end of the resistor R8 and the 6 th pin of the operational amplifier U1: B, the 5 th pin of the operational amplifier U1: B is respectively connected with the cathode of the diode D1 and the anode of the diode D2, the 7 th pin of the operational amplifier U1: B is respectively connected with the other end of the capacitor C7, the other end of the resistor R8, the 10 th pin of the operational amplifier U1: C and the 13 th pin of the operational amplifier U1: D, the 9 th pin of the operational amplifier U1: C is respectively connected with the other end of the resistor R5, The anode of the diode D1 is connected, the 8 th pin of the operational amplifier U1: C is connected with the anode of the diode D3, the 12 th pin of the operational amplifier U1: D is respectively connected with the cathode of the diode D2 and one end of the resistor R6, the other end of the resistor R6 is grounded, the 14 th pin of the operational amplifier U1: D is connected with the anode of the diode D4, and the cathode of the diode D3 is connected with the cathode of the diode D4;
the amplifying and transmitting circuit comprises a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a potentiometer RV1, a capacitor C8, a capacitor C9, a capacitor C10, an operational amplifier U2: A, an operational amplifier U2: B and a diode D5;
one end of the resistor R9 is connected with the cathode of the diode D3, the cathode of the diode D4 and one end of the resistor R10 respectively, the other end of the resistor R9 is grounded, the other end of the resistor R10 is connected with one end of the capacitor C8 and one end of the resistor R11 respectively, the other end of the capacitor C8 is grounded, the other end of the resistor R11 is connected with the 3 rd pin of the operational amplifier U2: A, the 2 nd pin of the operational amplifier U2: A is connected with one end of the resistor R12 and one end of the resistor R13 respectively, the other end of the resistor R13 is grounded, the other end of the resistor R12 and one end of the resistor R16 are connected with a power supply voltage respectively, the 1 st pin of the operational amplifier U2: A is connected with one end of the resistor R14, the other end of the resistor R14 is connected with the anode of the diode D5, and the cathode of the diode D5 is connected with one end of the resistor R15 respectively, One end of the capacitor C9 is connected with a 5 th pin of the operational amplifier U2: B, the other end of the resistor R15 is grounded, the other end of the capacitor C9 is grounded, a 6 th pin of the operational amplifier U2: B is respectively connected with one end of the resistor R18 and one end of the resistor R19, the other end of the resistor R18 is connected with a 3 rd pin of the potentiometer RV1, a 1 st pin of the potentiometer RV1 is connected with the other end of the resistor R16, a 2 nd pin of the potentiometer RV1 is connected with one end of the resistor R17, the other end of the resistor R17 is grounded, the other end of the resistor R19 is connected with one end of the capacitor C10, the other end of the capacitor C10 is connected with one end of the resistor R20, and a 7 th pin of the operational amplifier U2: B and the other end of the resistor R20 are both connected with output signals.
In this embodiment, the human body sensor J1 retains the wavelength of 7-14 μm, filters the infrared wavelength of other objects, detects that the human body passes through the 2 nd pin of the human body sensor J1, outputs the high level to the 3 rd pin of the operational amplifier U1: a for amplification, detects that the 1 st pin of the operational amplifier U1: a outputs the high level to the 6 th pin of the operational amplifier U1: B for two-pole amplification, the operational amplifier U1: C and the operational amplifier U1: D are comparators, the 7 th pin of the operational amplifier U1: B outputs the signal to the 10 th pin of the operational amplifier U1: C and the 13 th pin of the operational amplifier U1: D, compares the high level with the reference voltage, the 8 th pin of the operational amplifier U1: C and the 14 th pin of the operational amplifier U1: D output the high level, the high level is isolated from each other through the diode D3 and the diode D4, the voltage is output to a pin 3 of the operational amplifier U2: A through R10 and R11, the operational amplifier U2: A and the operational amplifier U2: B form a voltage comparator, the pin 3 of the operational amplifier U2: A is compared with a reference voltage received by a pin 2 of the operational amplifier U2: A, and when the pin 3 of the operational amplifier U2: A is higher than the pin 2 of the operational amplifier U2: A, the pin 1 of the operational amplifier U2: A outputs a high level. Similarly, the 7 th pin of the operational amplifier U2: B also outputs a high level, and the potentiometer RV1, the resistor R15 and the capacitor C9 control the working time.
In a further embodiment, the ambient light quality is detected, and the illumination radiation is calculated from the light quality
the expectation of the neutral plants on the spectral radiant flux is close to the sunshine duration, the spectral radiant flux is consistent with the expectation, the neutral plants are compensated and selected to be changed into bluish violet light according to the spectral radiant flux, the wave band is 380-505nm, and the plants are not stimulated.
In a further embodiment, the neutral plants are medium day plants, the receiving illumination time in one day is close to 12h, the illumination time is changed according to the neutral plants, the sum of the illumination time and the effective day time is controlled to be around 12h, the illumination is started after the end of the day and is continued to 9 pm, then the illumination is switched to the induction illumination, and the illumination is started according to the coming and going of people.
In a further embodiment, the plant has a light saturation point, and when the light density reaches the upper plant acceptance limit, the plant is saturated with light, at which point photosynthesis is strongest, and beyond the light saturation point, plant photosynthesis is diminished and photoinhibition occurs, whereby
PPFD is the photon flux density, E (lambda) is the irradiance, lambda is the wavelength, n is the Avogastron constant, h is the Planck constant, c is the speed of light,
the optical density of the illumination is calculated and the illumination is controlled to control the optical density near the optical saturation point.
In a further embodiment, the illuminating radiation is not completely received by the plant, the plant is only capable of receiving limited illuminating radiation, the photosynthetic limited radiation of the plant is calculated, and the photosynthetically active radiation of the plant is compared with the illuminating radiation acceptable to the plant, thereby
The above-mentioned
For photosynthetically active radiation, E (λ) is the irradiance, λ is the wavelength, n is the Avogastrol constant, h is the Planck constant, c is the speed of light, E is the photosynthetically active irradiance,
and calculating to obtain photosynthetic effective radiation, and finely adjusting the illumination according to the obtained comparison result so that the plant is in the optimal growth state.
A lighting method for urban plants comprises the following steps of estimating required illumination quantity according to urban plant species, and adjusting illumination through calculating illumination radiation quantity, wherein the method comprises the following specific steps:
calculating the magnitude of external illumination radiation, and then changing the light quality to compensate the external illumination radiation;
step 21, in the heliophilous plant mode, the radiation compensation degree for external illumination is high, and when the radiation degree for external illumination is lower than the standard, the light quality is selectively changed into red orange light, the wave band is 610-780nm, and the growth of plants is stimulated;
step 22, in the shade-tolerant plant mode, the radiation compensation degree of the outside illumination is medium, when the outside radiation degree is lower than the standard, the light quality is selectively changed into bluish violet light, the wave band is 380-;
step 23, in the neutral plant mode, the radiation compensation degree for the external illumination is low, when the radiation degree of the external illumination is lower than the standard, the light quality is selectively changed into yellow green light, the wave band is 505 and 610nm, and the plant does not absorb the light;
step 4, optimizing and calculating the distribution mode of the plant lighting lamps by using a particle swarm algorithm;
and 5, carrying out illumination fine adjustment according to the photosynthetic conversion efficiency of the illumination lamp radiation by the plants.
In summary, the present invention has the following advantages:
1. sensing the approach of a human body to select illumination or dormancy to save power consumption;
2. selecting self light quality according to the external light quality to compensate so as to keep the growth state of the plants;
3. selecting illumination time and sunshine time to complement and promote normal growth of plants according to plant species;
4. calculating self illumination radiation, further obtaining effective photosynthetic radiation of the plant, and adjusting illumination intensity to prevent the plant from being influenced.
It is to be noted that the respective technical features described in the above embodiments are combined in any appropriate manner without contradiction. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (8)
1. An urban plant lighting system is characterized by comprising an induction control unit, a color change adjusting unit, an illumination adjusting unit and a radiation calculating unit;
the sensing control unit comprises a human body sensing module and a wavelength sensing module, wherein the human body sensing module is arranged on the lamp and used for detecting whether people exist around the lamp, and the wavelength sensing module is arranged at the bottom of the lamp and used for detecting the light quality nearby;
the color change adjusting unit changes the lighting color according to the detected light quality, and when the ambient light has large influence on the plants, the color is changed into the wavelength with small influence on the plants;
the illumination adjusting unit controls the illumination time and intensity according to the requirements of different plants, and reduces the influence of illumination on the plants;
and the radiation calculating unit is used for calculating the illumination radiation quantity of the lighting equipment and judging the plant state from the radiation quantity.
2. The urban plant lighting system according to claim 1, wherein the induction control unit, the human body induction module comprises a human body induction circuit comprising an induction isolation circuit and an amplification transmitting circuit;
the induction isolation circuit comprises a human body inductor J1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, an operational amplifier U1: A, an operational amplifier U1: B, an operational amplifier U1: C, an operational amplifier U1: D, a diode D1, a diode D2, a diode D3 and a diode D4;
a 1 st pin of the human body inductor J1 is connected to one end of the capacitor C1, one end of the capacitor C2 and one end of the resistor R4, the other end of the capacitor C1 is grounded to the other end of the capacitor C2, the other end of the resistor R4 and one end of the resistor R5 are both connected to a power supply voltage, a 2 nd pin of the human body inductor J1 is connected to one end of the capacitor C3, one end of the resistor R1 and a 3 rd pin of the operational amplifier U1: a, a 3 rd pin of the human body inductor J1 is connected to the other end of the capacitor C3 and the other end of the resistor R1, a 2 nd pin of the operational amplifier U1: a is connected to one end of the capacitor C5, one end of the resistor R2 and one end of the resistor R3, the other end of the resistor R2 is connected to one end of the capacitor C4, and the other end of the capacitor C4 is grounded, the 1 st pin of the operational amplifier U1: A is respectively connected with the other end of the capacitor C5, the other end of the resistor R3 and one end of the capacitor C6, the other end of the capacitor C6 is connected with one end of the resistor R7, the other end of the resistor R7 is respectively connected with one end of the capacitor C7, one end of the resistor R8 and the 6 th pin of the operational amplifier U1: B, the 5 th pin of the operational amplifier U1: B is respectively connected with the cathode of the diode D1 and the anode of the diode D2, the 7 th pin of the operational amplifier U1: B is respectively connected with the other end of the capacitor C7, the other end of the resistor R8, the 10 th pin of the operational amplifier U1: C and the 13 th pin of the operational amplifier U1: D, the 9 th pin of the operational amplifier U1: C is respectively connected with the other end of the resistor R5, The anode of the diode D1 is connected, the 8 th pin of the operational amplifier U1: C is connected with the anode of the diode D3, the 12 th pin of the operational amplifier U1: D is respectively connected with the cathode of the diode D2 and one end of the resistor R6, the other end of the resistor R6 is grounded, the 14 th pin of the operational amplifier U1: D is connected with the anode of the diode D4, and the cathode of the diode D3 is connected with the cathode of the diode D4;
the amplifying and transmitting circuit comprises a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R16, a resistor R17, a resistor R18, a resistor R19, a resistor R20, a potentiometer RV1, a capacitor C8, a capacitor C9, a capacitor C10, an operational amplifier U2: A, an operational amplifier U2: B and a diode D5;
one end of the resistor R9 is connected with the cathode of the diode D3, the cathode of the diode D4 and one end of the resistor R10 respectively, the other end of the resistor R9 is grounded, the other end of the resistor R10 is connected with one end of the capacitor C8 and one end of the resistor R11 respectively, the other end of the capacitor C8 is grounded, the other end of the resistor R11 is connected with the 3 rd pin of the operational amplifier U2: A, the 2 nd pin of the operational amplifier U2: A is connected with one end of the resistor R12 and one end of the resistor R13 respectively, the other end of the resistor R13 is grounded, the other end of the resistor R12 and one end of the resistor R16 are connected with a power supply voltage respectively, the 1 st pin of the operational amplifier U2: A is connected with one end of the resistor R14, the other end of the resistor R14 is connected with the anode of the diode D5, and the cathode of the diode D5 is connected with one end of the resistor R15 respectively, One end of the capacitor C9 is connected with a 5 th pin of the operational amplifier U2: B, the other end of the resistor R15 is grounded, the other end of the capacitor C9 is grounded, a 6 th pin of the operational amplifier U2: B is respectively connected with one end of the resistor R18 and one end of the resistor R19, the other end of the resistor R18 is connected with a 3 rd pin of the potentiometer RV1, a 1 st pin of the potentiometer RV1 is connected with the other end of the resistor R16, a 2 nd pin of the potentiometer RV1 is connected with one end of the resistor R17, the other end of the resistor R17 is grounded, the other end of the resistor R19 is connected with one end of the capacitor C10, the other end of the capacitor C10 is connected with one end of the resistor R20, and a 7 th pin of the operational amplifier U2: B and the other end of the resistor R20 are both connected with output signals.
3. The urban plant lighting system according to claim 1, wherein the sensing control unit and the wavelength sensing module are arranged at the bottom of the lamp, and do not receive self lighting wavelength and calculate the wavelength of the surrounding light source.
4. Urban plant lighting system according to claim 1, characterized in that said color change adjusting unit calculates the illumination radiation from the wavelength range to which the plant is sensitive
when the spectral radiant flux is lower than the expectation of the plant, the color is changed into red-orange light, the wave band is 610-780nm, the plant growth is stimulated, when the spectral radiant flux is close to the expectation of the plant, the color is changed into bluish-purple light, the wave band is 380-505nm, the plant is not stimulated, when the spectral radiant flux is higher than the expectation of the plant, the color is changed into yellow-green light, the wave band is 505-610nm, and the plant does not absorb.
5. The urban plant lighting system according to claim 1, wherein the illumination adjusting unit controls the sum of the on-time of the lamp light and the effective sunshine time of the day to be 14h or more when the plant is a long-day plant, and the sum of the on-time of the lamp light and the effective sunshine time of the day to be 12h or less when the plant is a short-day plant, and controls the sum of the on-time of the lamp light and the effective sunshine time of the day to be within 12h, and controls the sum of the on-time of the lamp light and the effective sunshine time of the day to be 12h when the plant is a medium-day plant, and the on-time of the lamp light and the effective sunshine time of the day to.
6. The urban plant lighting system according to claim 1, wherein the illumination adjusting unit is sensitive to light spectrum with wavelength range of 300-800, and the light density in the wavelength range is calculated by
PPFD is the photon flux density, E (lambda) is the irradiance, lambda is the wavelength, n is the Avogastron constant, h is the Planck constant, c is the speed of light,
the plant has a light saturation point, namely the upper limit of the light density requirement, and the light density is controlled at the light saturation point by calculating the light density of illumination.
7. The lighting system for urban plants according to claim 1, wherein said radiation computing unit determines the state of the plants from the radiation effective for photosynthesis of the plants, by
The above-mentioned
For photosynthetically active radiation, E (λ) is the irradiance, λ is the wavelength, n is the Avogastrol constant, h is the Planck constant, c is the speed of light, E is the photosynthetically active irradiance,
calculating to obtain photosynthetic effective radiation, judging the plant state according to the radiation quantity required by the plant, and finely adjusting the illumination.
8. The urban plant lighting method is characterized in that the required illumination quantity is estimated according to the urban plant species, and then the illumination is adjusted by calculating the illumination radiation quantity, and the method specifically comprises the following steps:
step 1, selecting an illumination mode according to the urban plant species, wherein the illumination mode comprises a heliophilous plant mode, a shade-tolerant plant mode and a neutral plant mode;
step 2, according to the detected ambient wavelength
calculating the magnitude of external illumination radiation, and then changing the light quality to compensate the external illumination radiation;
step 21, in the heliophilous plant mode, the radiation compensation degree for external illumination is high, and when the radiation degree for external illumination is lower than the standard, the light quality is selectively changed into red orange light, the wave band is 610-780nm, and the growth of plants is stimulated;
step 22, in the shade-tolerant plant mode, the radiation compensation degree of the outside illumination is medium, when the outside radiation degree is lower than the standard, the light quality is selectively changed into bluish violet light, the wave band is 380-;
step 23, in the neutral plant mode, the radiation compensation degree for the external illumination is low, when the radiation degree of the external illumination is lower than the standard, the light quality is selectively changed into yellow green light, the wave band is 505 and 610nm, and the plant does not absorb the light;
step 3, calculating the compensation intensity and time after compensating the external illumination, and keeping the illumination within the acceptable range of the plant;
step 4, optimizing and calculating the distribution mode of the plant lighting lamps by using a particle swarm algorithm;
and 5, carrying out illumination fine adjustment according to the photosynthetic conversion efficiency of the illumination lamp radiation by the plants.
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| CN113840434A (en) * | 2021-09-24 | 2021-12-24 | 中国农业科学院都市农业研究所 | Agricultural lighting equipment, system and method based on dynamic scanning |
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| CN113840434A (en) * | 2021-09-24 | 2021-12-24 | 中国农业科学院都市农业研究所 | Agricultural lighting equipment, system and method based on dynamic scanning |
| CN113840434B (en) * | 2021-09-24 | 2023-08-22 | 中国农业科学院都市农业研究所 | Agricultural lighting equipment, system and method based on dynamic scanning |
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