CN112425401A - High-vision-safety plant growth illumination device based on biological recognition and control method thereof - Google Patents
High-vision-safety plant growth illumination device based on biological recognition and control method thereof Download PDFInfo
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- CN112425401A CN112425401A CN201910725119.8A CN201910725119A CN112425401A CN 112425401 A CN112425401 A CN 112425401A CN 201910725119 A CN201910725119 A CN 201910725119A CN 112425401 A CN112425401 A CN 112425401A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/02—Stationary means for catching or killing insects with devices or substances, e.g. food, pheronones attracting the insects
- A01M1/04—Attracting insects by using illumination or colours
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/22—Killing insects by electric means
- A01M1/226—Killing insects by electric means by using waves, fields or rays, e.g. sound waves, microwaves, electric waves, magnetic fields, light rays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M2200/00—Kind of animal
- A01M2200/01—Insects
- A01M2200/012—Flying insects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
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- Wood Science & Technology (AREA)
- Biodiversity & Conservation Biology (AREA)
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Abstract
The invention discloses a plant growth illumination device with high visual safety based on biological recognition, which comprises a control part and a light-emitting part, wherein the light emitting portion includes a first light source portion emitting red blue light and a second light source portion emitting white light, wherein the control part comprises a controller, a photosensitive sensor, a temperature sensor, an infrared biological recognition device, an ultrasonic biological recognition device, a voice biological recognition device, an iris biological recognition device and/or a human face biological recognition device, the controller controls the first light source part and the second light source part respectively according to data detected by the photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the face biological recognition device. The invention can adjust the irradiation of blue light, thereby protecting the visual safety of personnel working in the plant lighting environment.
Description
Technical Field
The invention relates to a plant growth illumination device and a control method thereof, in particular to a plant growth illumination device for providing workers in a plant lighting environment with high visual safety based on biological recognition and a control method thereof.
Background
In the natural environment, plants perform photosynthesis and development and growth by acquiring light components with effective wavelengths in sunlight. However, the natural environment is diverse and has risks of insect damage and the like. Therefore, plant production facilities for growing plants in closed spaces, such as indoors, and simulating natural light by artificial lighting lamps have been gradually raised in recent years, and various large enterprises including philips, osram, GE, siemens, and the like have entered this field.
Not all of the light of the various wavelengths contained in natural light can be utilized by plants, and essentially only blue and red light can be absorbed by plants. In particular, blue light B (e.g. 460nm) can help the growth of plant roots, with the most significant effect on early plant; the red light R (for example 660nm) is beneficial to the stem and leaf, flowering and fruit growth of plants; far-red FR (e.g. 730nm) is beneficial for controlling plant flowering and in vivo nutrient synthesis. According to the species and the growth stage of the plant, the optimal illumination environment for the plant can be obtained by setting the appropriate wavelengths of the red light and the blue light and the red-blue ratio (B/R) between the red light and the blue light; the ultimate goal is to obtain high and stable yield of plants and high and stable nutritional ingredients, while achieving insect control and other effects.
For example, the following are described in the literature "Lee-e.g.. different Red-blue LED combined light sources influence on watermelon seedling growth and physiological parameters [ J ]. Cucurbita pepo, 2015,28(3): 14-17": for watermelon planting, a fluorescent lamp is used as a reference (the illumination intensity is 150 mu mol. m-2s-1), and the influence of LED combined light sources (7:1, 7:2 and 7:3) with different red light and blue light ratios (R/B) on the growth and physiological parameters of watermelon seedlings under the same illumination intensity is discussed; the results show that the stem renting degree, the fresh quality, the dry quality and the strong seedling index of the watermelon seedlings under the red and blue LED combined light source are all increased, wherein the effects are particularly remarkable under the condition that RB is 7: 3.
Disclosure of Invention
(problem to be solved)
However, in the prior art, little attention has been paid to visual comfort and visual safety of workers working in plant lighting environments because the power of conventional LED lighting lamps is relatively low and the damage to the human vision is limited, and with the recent dramatic increase in power, the damage to the human vision from high-power LED lighting lamps has also increased.
For example, in a plant lighting environment, after workers leave the environment for twenty minutes in work for a long time, all things seen before the eyes are green, and various conditions such as dizziness, nausea and the like may occur.
Blue light among various light components has the greatest harm to the vision of people, macular degeneration caused by the blue light harm has become the most concerned problem for LED illumination, and blindness caused by macular degeneration is ranked first and exceeds cataract, which is the most main factor causing poor vision according to the report of the world health organization. Therefore, how to reduce the influence of blue light on workers is an urgent problem to be solved.
In addition, blue light and red light are the main light species absorbed by plants, and other wavelengths of light also have beneficial effects on plant growth, for example, a low proportion of green light can promote the growth of lettuce, and in particular, 24% of green light can be supplemented on the basis of red blue light to promote the growth of lettuce. Therefore, it is also necessary to supplement some other lights based on red and blue lights. Because the white light contains other components such as red and blue light, green light and the like, the white light is added on the basis of the red and blue light, the light quality proportion of the white light is adjusted, and the spectrum in the whole illumination environment can be adjusted with low cost and high efficiency.
(means for solving the problems)
In order to solve the above problems, the present invention adopts the following technical solutions.
A plant growth illumination device with high visual safety based on biological recognition comprises a control part and a light emitting part, wherein,
the light emitting part comprises a first light source part and a second light source part, the first light source part emits red blue light, and the second light source part emits white light;
the control part comprises a controller, a photosensitive sensor, a temperature sensor, an infrared biological recognition device, an ultrasonic biological recognition device, a voice biological recognition device, an iris biological recognition device and/or a human face biological recognition device, and the controller controls the first light source part and the second light source part respectively according to data detected by the photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the human face biological recognition device.
Optionally, the blue light component emitted by the first light source part has a light emission peak within a wavelength range of 380-480 nm, so as to correspond to a blue light domain absorption peak of chlorophyll,
the wavelength of the red light component emitted by the first light source part is in the range of 600-700 nm,
the effective light quantum ratio (R/B) of the red light and the blue light emitted by the first light source part is in the range of 4: 1-10: 1.
Optionally, the first light source unit includes a solid light emitting chip and a coating layer disposed outside the solid light emitting chip, and the coating layer includes a red phosphor capable of absorbing excitation light emitted from the solid light emitting chip and converting the excitation light into red light, so that the solid light emitting chip is used to implement a light source whose dominant wavelength is red and blue light.
Optionally, the plant growth illumination device with high visual safety based on biometric identification further includes a timer, the timer sets a time period for the first light source unit and the second light source unit to perform an illumination operation, and the control unit controls the first light source unit and the second light source unit according to the time period set by the timer, wherein the timer is set to: the first light source part and/or the second light source part are/is irradiated for the accumulative irradiation illumination intensity time of 10-16 h.
Optionally, the light quantity flux density of the first light source unit and the light intensity of the second light source unit are adjusted by adjusting the PWM waveform and duty ratio of the current.
Optionally, the ratio of the light quanta of the red light and the blue light of the first light source part is fixed;
the number and the color temperature of the second light source parts are changed on the basis of the first light source parts, and the spectrum proportion of the illumination device suitable for plant growth is adjusted.
Optionally, the light flux density of the yellow-green light of the second light source unit is not more than 30% of the total effective light flux density of the first light source unit and the second light source unit of the illumination device.
Optionally, the color temperature of the second light source part is 2000-10000K, and the illumination intensity of the radiated plant canopy is above 100 lux;
and the proportion of the red light and the blue light of the plant growth illumination device in the whole effective light quantum flux density is adjusted by selecting the second light source parts with different color temperatures and numbers.
Optionally, the photosensitive sensor is configured to detect intensity of external light, and send detected external light intensity data to the controller, and the controller controls the first light source unit and the second light source unit to be turned off when the intensity of the external light is greater than a preset threshold value.
Optionally, the temperature sensor is configured to detect an internal temperature of the plant production facility, and send detected internal temperature data of the plant production facility to the controller, and the controller reduces the emission power of the first light source unit and/or the second light source unit when the internal temperature of the plant production facility is greater than a preset upper limit value; when the internal temperature of the plant production facility is lower than a preset lower limit value, the emission power of the first light source part and/or the second light source part is increased.
Optionally, the infrared biological recognition device emits infrared rays and receives an infrared signal reflected by a human body, and transmits the infrared signal reflected by the human body to the controller, and the controller determines whether an operator is present in the plant production facility according to the signal detected by the infrared biological recognition device, and controls the first light source and/or the second light source to be turned on and/or off according to the determination result;
the ultrasonic biological recognition device detects the position of an operator in real time and transmits the position information of the operator to the controller, and the controller controls the first light source part and/or the second light source part near the operator to be turned off according to the position information of the operator detected by the ultrasonic biological recognition device;
the voice biological recognition device is used for receiving the voice in the plant production facility and transmitting the voice signal detected by the voice biological recognition device to the controller, the controller judges whether an operator exists in the plant production facility according to the decibel value in the plant production facility, and the controller controls the first light source part and/or the second light source part to be turned on and/or off according to the voice signal detected by the voice biological recognition device;
the iris biological recognition device detects iris information of human eyes and transmits acquired iris signals to the controller, and the controller controls the first light source part and/or the second light source part to be turned on and/or turned off according to the iris information of the human eyes detected by the iris biological recognition device;
the human face biological recognition device detects image information of operators in the plant production facility and transmits the acquired image information to the controller, and the controller controls the first light source part and/or the second light source part to be turned on and/or turned off according to the image information of the operators detected by the human face biological recognition device.
Optionally, photosensitive sensor, temperature sensor, infrared biological recognition device, ultrasonic biological recognition device, voice biological recognition device, iris biological recognition device and/or human face biological recognition device all connect in through the AD converter the controller, voice biological recognition device direct connection in the IO port of controller.
Optionally, the controller is connected to the control device through a GPIO interface, and the control device is connected to the first light source unit and the second light source unit.
A control method of a plant growth illumination device with high visual safety based on biological recognition comprises the following steps:
setting the time and working period for starting illumination, and controlling the first light source part and the second light source part to be started by the control part after the illumination starting time is reached;
judging the irradiated plants, and determining illumination parameters according to the types of the irradiated plants;
the control part controls the first light source part and the second light source part to work according to the illumination parameters;
and judging whether the working time of the first light source part and the second light source part reaches the working time interval or not, and if the working time reaches the working time interval, controlling the first light source part and the second light source part to be closed by the control part.
Optionally, during the working period of the first light source portion and the second light source portion, whether the human body enters the illumination environment is judged, after the human body enters the illumination environment, the control portion controls the first light source portion to be turned off, and after the human body enters the illumination environment and leaves from the illumination environment, the control portion controls the first light source portion to be turned on.
A plant growth illumination device with high visual safety based on biological recognition comprises a control part and a light emitting part, wherein,
the light emitting part includes a first light source part emitting red blue light and a second light source part emitting white light,
wherein the first light source unit and the second light source unit are electrically connected in parallel or in series,
the control section controls the first light source section and the second light source section in such a manner that the control section regulates the entire spectrum by controlling the color temperature and the number of turns on of the second light source section.
Optionally, the plant growth illumination device with high visual safety based on biological recognition further comprises a driving element and a heat dissipation element.
Optionally, the plant growth illumination device with high visual safety based on biological recognition can be used for facility agriculture, artificial climate rooms or illumination incubators.
(technical Effect)
The invention can adjust the irradiation of blue light by the combination and control of the first light source part and the second light source part, thereby protecting the visual safety of personnel working in the plant lighting environment; meanwhile, the white light is used for supplementing components such as green light and the like, so that the spectrum is further enriched, and an environment which is more beneficial to plant growth is created.
Drawings
FIG. 1 is a block diagram of the structure of a plant growth illumination device with high visual safety based on biological recognition according to the present invention;
FIG. 2 is a schematic structural diagram of a plant growth illumination device with high visual safety based on biological recognition according to the present invention;
FIG. 3 is a flow chart of a control method of the plant growth illumination device with high visual safety based on biological recognition according to the present invention;
fig. 4 is a flowchart of a control method of the plant growth illumination device with high visual safety based on biological recognition according to the invention.
Detailed Description
The technical solution of the present invention is further described below with reference to the following embodiments and the accompanying drawings.
Example 1
The embodiment provides a plant growth illumination device with high visual safety based on biological recognition, which comprises a control part and a light emitting part, wherein the light emitting part comprises a first light source part and a second light source part, the first light source part emits red blue light, the second light source part emits white light, the control part comprises a controller, and a photosensitive sensor, a temperature sensor, an infrared biometric identification device, an ultrasonic biometric identification device, a voice biometric identification device, an iris biometric identification device and/or a human face biometric identification device, the controller controls the first light source part and the second light source part respectively according to data detected by the photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the face biological recognition device.
In this embodiment, the first light source unit and the second light source unit are electrically connected in parallel and/or in series, and the control unit controls the first light source unit and the second light source unit in such a manner that the control unit controls the color temperature and the number of turns on of the second light source unit to control the entire spectrum.
Photosensitive sensor, temperature sensor, infrared biological recognition device, ultrasonic wave biological recognition device, sound biological recognition device, iris biological recognition device and/or people's face biological recognition device all connect in through the AD converter the controller, sound biological recognition device lug connection in the IO port of controller.
It is well known that blue light is most harmful to humans than other components of light, which is a common blue light hazard. In particular, the blue light hazard refers to damage to the retina caused by photochemical events upon irradiation with radiation having a wavelength predominantly between 400nm and 500 nm. This damage is exacerbated if the irradiation time exceeds 10 seconds. Therefore, in the actual production, the blue light hazard is paid full attention.
Therefore, in this embodiment, the first light source unit and the second light source unit are arranged, so that on one hand, the requirement of the plant on the light component in the growth process can be met, and on the other hand, the damage of the blue light emitted by the first light source unit to the human body can be reduced to within the design value by controlling the first light source unit and the second light source unit.
More preferably, the blue light component emitted by the first light source part has a light emission peak in a wavelength range of 380-480 nm, so as to correspond to a blue light domain absorption peak of chlorophyll; the wavelength of the red light component emitted by the first light source part is in the range of 600-700 nm, and the effective light quantum ratio of the red light and the blue light emitted by the first light source part, namely R/B, is in the range of 4: 1-10: 1.
Taking the planting of strawberries by plant production facilities as an example, when the effective light quantum ratio of red light and blue light emitted by the first light source part, namely R/B, is in the range of 4: 1-10: 1, the single fruit quality and the fruit quality of strawberries can be greatly improved, and the single fruit quality is improved by about 40% at most compared with the conventional sunlight irradiation in terms of average single fruit quality according to experimental data; the soluble solid content of the mature strawberry fruit is increased by 15% to the maximum extent; the vitamin C content of the mature strawberry fruits is increased by 10 percent to the maximum extent; the soluble sugar content of the mature strawberry fruits is maximally improved by 4.5 percent.
In one implementation form, the first light source unit includes a solid-state light emitting chip, and a coating layer disposed outside the solid-state light emitting chip, the coating layer includes a red phosphor capable of absorbing excitation light emitted by the solid-state light emitting chip and converting the excitation light into red light, so that the solid-state light emitting chip realizes a photosynthetic solid-state light emitting chip with a dominant wavelength of red light and blue light; preferably, the solid light-emitting chip can adopt a blue light LED chip, so that blue light and red light can be generated through the blue light chip with lower cost, and the expenditure of the LED chip is saved.
The second light source part is a solid light emitting chip and a coating layer arranged on the outer side of the solid light emitting chip, and the coating layer contains yellow-green fluorescent powder which can absorb exciting light emitted by the solid light emitting chip and convert the exciting light into white light.
The plant growth illumination device with high visual safety based on biometrics authentication further includes a timer that sets a time period for causing the first light source unit and the second light source unit to perform an illumination operation, and during this time period, the control unit controls the first light source unit and the second light source unit to be turned on so that the plant can receive illumination of light within a predetermined time period, and preferably, the timer is set to: the first light source part and/or the second light source part are/is irradiated at the accumulated radiation illumination time of 10-16 h/day or according to the preset time, so that the power supply of the first light source part and the second light source part can be turned off when the sunlight is sufficient in the daytime, and the energy is saved.
As one implementation form, in this embodiment, the light quantity flux density of the first light source section and the light intensity of the second light source section may be adjusted by adjusting the PWM waveform and the duty ratio of the current; when the first light source section is determined, the light quantum ratio of red light and blue light thereof is fixed. When the first light source part and the second light source part are selected, the light quantum proportion of red light and blue light can be adjusted by adjusting the quality of the red light fluorescent powder, and the second light source part comprising white light LED light sources with different quantities and color temperatures is added on the basis of the first light source part, so that white light is included in light irradiated to plants, and the spectral proportion of the illumination device suitable for plant growth can be adjusted more conveniently; and more preferably, the light quantity sub-flow density of the yellowish green light of the second light source section is not more than 30% of the total effective light quantity sub-flow density of the first light source section and the second light source section of the illumination device.
Preferably, the color temperature of the second light source part is 10000K, preferably 3000K, 5000K or 7000K, that is, the control part can adjust the color temperature of the second light source part and also control the access number of the second light source part to regulate the whole spectrum. The light intensity of the plant canopy is above 100lux, and the ratio of red light and blue light of the plant growth lighting device in the whole effective light flux density is adjusted by selecting different color temperatures and numbers of the second light source parts.
In this embodiment, in order to enable the control unit to more accurately control the first light source unit and the second light source unit, the photosensor is configured to detect intensity of external light and send detected external light intensity data to the controller, the controller controls the first light source unit and the second light source unit to be turned off when the intensity of the external light is greater than a preset upper threshold, and controls the first light source unit and the second light source unit to be turned on when the intensity of the external light is less than a preset lower threshold.
The temperature sensor is used for detecting the internal temperature of the plant production facility and sending the detected internal temperature data of the plant production facility to the controller, and the controller reduces the emission power of the first light source part and/or the second light source part when the internal temperature of the plant production facility is greater than a preset upper limit value; when the internal temperature of the plant production facility is lower than a preset lower limit value, the emission power of the first light source part and/or the second light source part is increased.
In particular, when a person enters the plant production facility including the plant growth illumination device based on biological recognition of the present embodiment with high visual safety, the first light source unit needs to be turned off at this time in consideration of the influence of blue light on the human body, so that the blue light in the plant production facility is reduced to a reasonable level; therefore, the infrared biological recognition device of the embodiment emits infrared rays and receives infrared signals reflected by a human body, the infrared biological recognition device emits infrared rays and receives infrared signals reflected by the human body, the infrared signals reflected by the human body are transmitted to the controller, the controller judges whether an operator exists in the plant production facility according to the signals detected by the infrared biological recognition device, and controls the first light source part and/or the second light source part to be turned on and/or turned off according to the judgment result; that is, when there is an operator inside the plant production facility, the controller controls the first light source unit to be turned off, or controls the first light source unit and the second light source unit to be turned off; when no operator exists in the plant production facility, the controller controls the first light source part to be switched on or switched off, or controls the first light source part and the second light source part to be switched on.
The ultrasonic biological recognition device detects the position of an operator in real time and transmits the position information of the operator to the controller, and the controller controls the first light source part and/or the second light source part near the operator to be turned off according to the position information of the operator detected by the ultrasonic biological recognition device; that is, when an operator is present inside the plant production facility, the controller controls the first light source section near the operator to be turned off, or controls the first light source section and the second light source section near the operator to be turned off; when no operator exists in the plant production facility, the controller controls the first light source part to be switched on or switched off, or controls the first light source part and the second light source part to be switched on.
The voice biological recognition device is used for receiving the voice in the plant production facility and transmitting the voice signal detected by the voice biological recognition device to the controller, the controller judges whether an operator exists in the plant production facility according to the decibel value in the plant production facility, and the controller controls the first light source part and/or the second light source part to be turned on and/or off according to the voice signal detected by the voice biological recognition device; that is, when there is an operator inside the plant production facility, the controller controls the first light source unit to be turned off, or controls the first light source unit and the second light source unit to be turned off; when no operator exists in the plant production facility, the controller controls the first light source part to be switched on or switched off, or controls the first light source part and the second light source part to be switched on.
The iris biological recognition device detects iris information of human eyes, judges whether operators exist in plant production facilities or not and transmits the information of whether the operators exist in the plant production facilities or not to the controller, and the controller controls the first light source part and/or the second light source part to be turned on and/or off according to the information transmitted by the iris biological recognition device; that is, when there is an operator inside the plant production facility, the controller controls the first light source unit to be turned off, or controls the first light source unit and the second light source unit to be turned off; when no operator exists in the plant production facility, the controller controls the first light source part to be switched on or switched off, or controls the first light source part and the second light source part to be switched on.
The human face biological recognition device detects image information of operators in the plant production facility, judges whether the operators exist in the plant production facility or not, and transmits the information of whether the operators exist in the plant production facility or not to the controller, and the controller controls the first light source part and/or the second light source part to be turned on and/or off according to the image information of the operators detected by the human face biological recognition device. That is, when there is an operator inside the plant production facility, the controller controls the first light source unit to be turned off, or controls the first light source unit and the second light source unit to be turned off; when no operator exists in the plant production facility, the controller controls the first light source part to be switched on or switched off, or controls the first light source part and the second light source part to be switched on.
The controller is connected to a control device through a GPIO interface, and the control device is connected to the first light source part and the second light source part.
Furthermore, to prevent the strong light from damaging the human body, such as human eyes, the control portion adjusts the illumination intensity of the second light source portion to be less than 1000lux (or between 200 lux and 800 lux).
The plant growth illumination device with high visual safety based on biological recognition further comprises a driving element and a heat dissipation element, wherein the driving element is used for driving the first light source part and the second light source part, and the heat dissipation element is used for dissipating heat of the first light source part and the second light source part.
The first light emitting part and the second light emitting part comprise solid light emitting chips and circuit boards electrically connected with the solid light emitting chips, and preferably, the solid light emitting element comprises at least one of a light emitting diode, an organic light emitting diode, a vertical cavity surface emitting laser and a laser diode.
In an embodiment of the present invention, the circuit board includes a PCB, a substrate, a flexible board, or a rigid-flex board.
The plant growth illumination device with high visual safety based on biological identification can be used for facility agriculture, artificial climate rooms or illumination incubators.
Example 2
The embodiment provides a control method for a high-vision-safety plant growth illumination device based on biological identification, which can adopt the high-vision-safety plant growth illumination device based on biological identification disclosed in the embodiment, and comprises the following steps:
setting the time and working period for starting illumination, and controlling the first light source part and the second light source part to be started by the control part after the illumination starting time is reached;
judging the irradiated plants, and determining illumination parameters according to the types of the irradiated plants;
the control part controls the first light source part and the second light source part to work according to the illumination parameters;
and judging whether the working time of the first light source part and the second light source part reaches the working time interval or not, and if the working time reaches the working time interval, controlling the first light source part and the second light source part to be closed by the control part.
Further, during the operation of the first light source unit and the second light source unit, it is determined whether the human body enters the lighting environment, the control unit controls the first light source unit to be turned off after the human body enters the lighting environment, and controls the first light source unit to be turned on after the human body enters the lighting environment and leaves the lighting environment.
The sequence of the above embodiments is only for convenience of description and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (18)
1. A plant growth illumination device with high visual safety based on biological recognition is characterized in that,
comprises a control part and a light-emitting part, wherein,
the light emitting part comprises a first light source part and a second light source part, the first light source part emits red blue light, and the second light source part emits white light;
the control part comprises a controller, a photosensitive sensor, a temperature sensor, an infrared biological recognition device, an ultrasonic biological recognition device, a voice biological recognition device, an iris biological recognition device and/or a human face biological recognition device, and the controller controls the first light source part and the second light source part respectively according to data detected by the photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the human face biological recognition device.
2. The plant growth illumination device with high visual safety based on biological recognition according to claim 1,
the blue light component emitted by the first light source part has a light emitting peak in the wavelength range of 380-480 nm so as to correspond to the absorption peak of the blue light domain of chlorophyll,
the wavelength of the red light component emitted by the first light source part is in the range of 600-700 nm,
the effective light quantum ratio (R/B) of the red light and the blue light emitted by the first light source part is in the range of 4: 1-10: 1.
3. The plant growth illumination device with high visual safety based on biological recognition according to claim 1,
the first light source part comprises a solid light emitting chip and a coating layer arranged on the outer side of the solid light emitting chip, wherein the coating layer contains red fluorescent powder capable of absorbing exciting light emitted by the solid light emitting chip and converting the exciting light to emit red light, so that the light source with the main wavelength of red and blue light is realized through the solid light emitting chip.
4. The plant growth illumination device with high visual safety based on biological recognition according to claim 1,
the illumination device further includes a timer that sets a time period for causing the first light source unit and the second light source unit to perform an illumination operation, and the control unit controls the first light source unit and the second light source unit according to the time period set by the timer, wherein the timer is set to: the first light source part and/or the second light source part are/is irradiated for the accumulative irradiation illumination intensity time of 10-16 h.
5. The plant growth illumination device with high visual safety based on biological recognition according to claim 1,
the light flux density of the first light source unit and the light intensity of the second light source unit are adjusted by adjusting the PWM waveform and duty ratio of the current.
6. The plant growth illumination device with high visual safety based on biological recognition according to claim 1,
the ratio of light quanta of the red light and the blue light of the first light source section is fixed;
the number and the color temperature of the second light source parts are changed on the basis of the first light source parts, and the spectrum proportion of the illumination device suitable for plant growth is adjusted.
7. The plant growth illumination device with high visual safety based on biological recognition according to claim 1,
the light flux density of the yellow-green light of the second light source section is not more than 30% of the total effective light flux density of the first light source section and the second light source section of the illumination device.
8. The plant growth illumination device with high visual safety based on biological recognition according to claim 1,
the color temperature of the second light source part is 2000-10000K, and the illumination intensity of the radiated plant canopy is more than 100 lux;
and the proportion of the red light and the blue light of the plant growth illumination device in the whole effective light quantum flux density is adjusted by selecting the second light source parts with different color temperatures and numbers.
9. The plant growth illumination device with high visual safety based on biological recognition as claimed in claim 1, wherein the light sensor is used for detecting the intensity of external light and sending the detected external light intensity data to the controller, and the controller controls the first light source part and the second light source part to be turned off when the intensity of external light is greater than a preset threshold value.
10. The plant growth illumination device with high visual safety based on biological recognition according to claim 9, wherein the temperature sensor is used for detecting the internal temperature of the plant production facility and sending the detected internal temperature data of the plant production facility to the controller, and the controller reduces the emission power of the first light source part and/or the second light source part when the internal temperature of the plant production facility is greater than a preset upper limit value; when the internal temperature of the plant production facility is lower than a preset lower limit value, the emission power of the first light source part and/or the second light source part is increased.
11. The plant growth illumination device with high visual safety based on biological recognition according to claim 10,
the infrared biological recognition device emits infrared rays and receives infrared signals reflected by a human body, the infrared signals reflected by the human body are transmitted to the controller, the controller judges whether an operator exists in the plant production facility according to the signals detected by the infrared biological recognition device, and controls the first light source part and/or the second light source part to be turned on and/or off according to the judgment result;
the ultrasonic biological recognition device detects the position of an operator in real time and transmits the position information of the operator to the controller, and the controller controls the first light source part and/or the second light source part near the operator to be turned off according to the position information of the operator detected by the ultrasonic biological recognition device;
the voice biological recognition device is used for receiving the voice in the plant production facility and transmitting the voice signal detected by the voice biological recognition device to the controller, the controller judges whether an operator exists in the plant production facility according to the decibel value in the plant production facility, and the controller controls the first light source part and/or the second light source part to be turned on and/or off according to the voice signal detected by the voice biological recognition device;
the iris biological recognition device detects iris information of human eyes and transmits acquired iris signals to the controller, and the controller controls the first light source part and/or the second light source part to be turned on and/or turned off according to the iris information of the human eyes detected by the iris biological recognition device;
the human face biological recognition device detects image information of operators in the plant production facility and transmits the acquired image information to the controller, and the controller controls the first light source part and/or the second light source part to be turned on and/or turned off according to the image information of the operators detected by the human face biological recognition device.
12. The plant growth illumination device with high visual safety based on biological recognition as claimed in claim 1, wherein the photosensitive sensor, the temperature sensor, the infrared biological recognition device, the ultrasonic biological recognition device, the voice biological recognition device, the iris biological recognition device and/or the face biological recognition device are/is connected to the controller through an AD converter, and the voice biological recognition device is directly connected to an IO port of the controller.
13. The biometric-based high visual safety plant growth illumination device according to claim 12, wherein the controller is connected to a control device through a GPIO interface, the control device being connected to the first and second light source sections.
14. A control method of a plant growth illumination device with high visual safety based on biological recognition is characterized by comprising the following steps:
setting the time and working period for starting illumination, and controlling the first light source part and the second light source part to be started by the control part after the illumination starting time is reached;
judging the irradiated plants, and determining illumination parameters according to the types of the irradiated plants;
the control part controls the first light source part and the second light source part to work according to the illumination parameters;
and judging whether the working time of the first light source part and the second light source part reaches the working time interval or not, and if the working time reaches the working time interval, controlling the first light source part and the second light source part to be closed by the control part.
15. The method for controlling a plant growth illumination apparatus with high visual safety based on biological recognition as claimed in claim 14,
the control part controls the first light source part to be turned off after the human body enters the illumination environment, and controls the first light source part to be turned on after the human body enters the illumination environment and leaves from the illumination environment.
16. A plant growth illumination device with high visual safety based on biological recognition is characterized by comprising a control part and a light emitting part, wherein,
the light emitting part includes a first light source part emitting red blue light and a second light source part emitting white light,
wherein the first light source unit and the second light source unit are electrically connected in parallel or in series,
the control section controls the first light source section and the second light source section in such a manner that the control section regulates the entire spectrum by controlling the color temperature and the number of turns on of the second light source section.
17. The biological recognition based high visual safety plant growth illumination device of claim 16, further comprising a driving element and a heat dissipation element.
18. The biometric-based high visual safety plant growth illumination device as in claim 16, wherein the biometric-based high visual safety plant growth illumination device is usable in a facility agriculture, a phytotron, or a light incubator.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725119.8A CN112425401A (en) | 2019-08-07 | 2019-08-07 | High-vision-safety plant growth illumination device based on biological recognition and control method thereof |
| PCT/CN2020/104292 WO2021023022A1 (en) | 2019-08-07 | 2020-07-24 | Plant growth lighting apparatus having high visual security and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910725119.8A CN112425401A (en) | 2019-08-07 | 2019-08-07 | High-vision-safety plant growth illumination device based on biological recognition and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112425401A true CN112425401A (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910725119.8A Withdrawn CN112425401A (en) | 2019-08-07 | 2019-08-07 | High-vision-safety plant growth illumination device based on biological recognition and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112425401A (en) |
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2019
- 2019-08-07 CN CN201910725119.8A patent/CN112425401A/en not_active Withdrawn
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